Protect against symlink attacks on MBX lockfile in /tmp as best we can:
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
a466095c 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.608 2010/05/26 12:26:00 nm4 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
465e92cf
JJ
6Exim version 4.72
7-----------------
8
9JJ/01 installed exipick 20100104.1, adding $max_received_linelength, $data_path, and $header_path variables; fixed documentation bugs and typos
10
edae0343
JJ
11JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow exipick to access non-standard spools, including the "frozen" queue (Finput)
12
9bd3e22c
NM
13NM/01 Bugzilla 965: Support mysql stored procedures.
14 Patch from Alain Williams
15
bb576ff7
NM
16NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
17
5a1a5845
NM
18NM/03 Bugzilla 955: Documentation fix for max_rcpts.
19 Patch from Andreas Metzler
20
981a9fad
NM
21NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
22 Patch from Kirill Miazine
23
7fc497ee
NM
24NM/05 Bugzilla 671: Added umask to procmail example.
25
1a41defa
JJ
26JJ/03 installed exipick 20100323.0, fixing doc bug
27
a466095c
NM
28NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
29 directory. Notification and patch from Dan Rosenberg
30
9bd3e22c 31
7c6d71af
NM
32Exim version 4.71
33-----------------
34
35TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body
36
f013fb92
NM
37NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
38
0eb8eedd
NM
39NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
40
663ee6d9
NM
41NM/03 Bugzilla 847: Enable DNSDB lookup by default.
42
177ebd9b
NM
43NM/04 Bugzilla 915: Flag broken perl installation during build.
44
7c6d71af 45
210f147e
NM
46Exim version 4.70
47-----------------
48
cdd3bb85 49TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 50 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
51
52TK/02 Write list of recipients to X-Envelope-Sender header when building
53 the mbox-format spool file for content scanning (suggested by Jakob
54 Hirsch)
55
56TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
57 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 58 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
59
60TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
61 by Mark Daniel Reidel <mr@df.eu>.
62
210f147e
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63NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
64 When building exim an external PCRE library is now needed -
65 PCRE is a system library on the majority of modern systems.
66 See entry on PCRE_LIBS in EDITME file.
67
deafd5b3
NM
68NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
69 conversation. Added nologin parameter to request.
70 Patch contributed by Kirill Miazine
71
089793a4
TF
72TF/01 Do not log submission mode rewrites if they do not change the address.
73
5f16ca82
TF
74TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
75
dae9d94e
NM
76NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
77 log files in place. Contributed by Roberto Lima
78
3f0da4d0
NM
79NM/04 Bugzilla 667: close socket used by dovecot authenticator
80
06864c44
TF
81TF/03 Bugzilla 615: When checking the local_parts router precondition
82 after a local_part_suffix or local_part_prefix option, Exim now
83 does not use the address's named list lookup cache, since this
84 contains cached lookups for the whole local part.
85
65a7d8c3
NM
86NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
87 Robert Millan. Documentation is in experimental-spec.txt
88
23510047 89TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 90
7d8eec3a 91NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 92
7d8eec3a 93NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
94 Patch provided by Jan Srzednicki
95
89dec7b6
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96TF/05 Leading white space used to be stripped from $spam_report which
97 wrecked the formatting. Now it is preserved.
5f28a6e8 98
a99de90c
TF
99TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
100 that they are available at delivery time.
101
e2803e40
TF
102TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
103
7199e1ee
TF
104TF/08 TLS error reporting now respects the incoming_interface and
105 incoming_port log selectors.
106
e276e04b
TF
107TF/09 Produce a more useful error message if an SMTP transport's hosts
108 setting expands to an empty string.
109
ce552449
NM
110NM/06 Bugzilla 744: EXPN did not work under TLS.
111 Patch provided by Phil Pennock
112
e765a0f1
NM
113NM/07 Bugzilla 769: Extraneous comma in usage fprintf
114 Patch provided by Richard Godbee
115
4f054c63 116NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 117 acl_smtp_notquit, added index entry.
4f054c63 118
24c929a2
NM
119NM/09 Bugzilla 787: Potential buffer overflow in string_format
120 Patch provided by Eugene Bujak
121
cf73943b
NM
122NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
123 Patch provided by Maxim Dounin
124
b52bc06e
NM
125NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
126 Patch provided by Phil Pennock
127
447de4b0
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128NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
129
4c69d561
NM
130NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
131 Patch provided by Brad "anomie" Jorsch
132
d5c39246 133NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
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134 Patch provided by Dean Brooks
135
0b23848a
TK
136TK/05 Add native DKIM support (does not depend on external libraries).
137
8f3414a1 138NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
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139 Patch provided by Graeme Fowler
140
fb6f955d
NM
141NM/16 Bugzilla 851: Documentation example syntax fix.
142
143NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 144
dbb0bf41
NM
145NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
146
f3766eb5
NM
147NM/19 Bugzilla 745: TLS version reporting
148 Patch provided by Phil Pennock
149
150NM/20 Bugzilla 167: bool: condition support
151 Patch provided by Phil Pennock
36f12725 152
e6060e2c
NM
153NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
154 Patch provided by Phil Pennock
155
7496b417 156NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
157 Patch provided by Brad "anomie" Jorsch
158
d5c13d66
NM
159NM/23 Bugzilla 687: Fix misparses in eximstats
160 Patch provided by Heiko Schlittermann
161
b2335c0b
NM
162NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
163 Patch provided by Heiko Schlittermann
164
f4cd9433 165NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 166 plus update to original patch.
f4cd9433
NM
167
168NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 169
8dc71ab3
NM
170NM/27 Bugzilla 802: Improvements to local interface IP addr detection
171 Patch provided by David Brownlee
172
400eda43
NM
173NM/28 Bugzilla 807: Improvements to LMTP delivery logging
174
175NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 176
07af267e
NM
177NM/30 Bugzilla 888: TLS documentation bugfixes
178
0cc09577 179NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 180
17792b53
NM
181NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
182 Unlike the original bugzilla I have changed all shell scripts in src tree
183
52383f8f
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184NM/33 Bugzilla 898: Transport filter timeout fix
185 Patch by Todd Rinaldo
186
5ca6d115
NM
187NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
188 Patch by Serge Demonchaux
189
baee9eee
NM
190NM/35 Bugzilla 39: Base64 decode bug fixes
191 Patch by Jakob Hirsch
192
e93a964c
NM
193NM/36 Bugzilla 909: Correct connect() call in dcc code
194
9bf3d68f
NM
195NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
196
197NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 198
30339e0f
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199NM/39 Bugzilla 911: Fixed MakeLinks build script
200
deafd5b3 201
47db1125
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202Exim version 4.69
203-----------------
204
4b3504d0
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205TK/01 Add preliminary DKIM support. Currently requires a forked version of
206 ALT-N's libdkim that I have put here:
207 http://duncanthrax.net/exim-experimental/
208
209 Note to Michael Haardt: I had to rename some vars in sieve.c. They
210 were called 'true' and it seems that C99 defines that as a reserved
211 keyword to be used with 'bool' variable types. That means you could
212 not include C99-style headers which use bools without triggering
213 build errors in sieve.c.
214
81ea09ca
NM
215NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
216 as mailq or other aliases. Changed the --help handling significantly
217 to do whats expected. exim_usage() emits usage/help information.
218
f13cddcb
SC
219SC/01 Added the -bylocaldomain option to eximstats.
220
8ad076b2
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221NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
222
a843aaa6
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223NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
224
47db1125
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225NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
226
227
eb4c0de6
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228Exim version 4.68
229-----------------
230
231PH/01 Another patch from the Sieve maintainer.
232
6a3bceb1
PH
233PH/02 When an IPv6 address is converted to a string for single-key lookup
234 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
235 dots are used instead of colons so that keys in lsearch files need not
236 contain colons. This was done some time before quoting was made available
237 in lsearch files. However, iplsearch files do require colons in IPv6 keys
238 (notated using the quote facility) so as to distinguish them from IPv4
239 keys. This meant that lookups for IP addresses in host lists did not work
240 for iplsearch lookups.
241
242 This has been fixed by arranging for IPv6 addresses to be expressed with
243 colons if the lookup type is iplsearch. This is not incompatible, because
244 previously such lookups could never work.
245
246 The situation is now rather anomolous, since one *can* have colons in
247 ordinary lsearch keys. However, making the change in all cases is
248 incompatible and would probably break a number of configurations.
249
2e30fa9d
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250TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
251 version.
252
0806a9c5
MH
253MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
254 conversion specification without a maximum field width, thereby enabling
255 a rogue spamd server to cause a buffer overflow. While nobody in their
256 right mind would setup Exim to query an untrusted spamd server, an
257 attacker that gains access to a server running spamd could potentially
258 exploit this vulnerability to run arbitrary code as the Exim user.
259
ae276964
TK
260TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
261 $primary_hostname instead of what libspf2 thinks the hosts name is.
262
0f2cbd1b
MH
263MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
264 a directory entry by the name of the lookup key. Previously, if a
265 symlink pointed to a non-existing file or a file in a directory that
266 Exim lacked permissions to read, a lookup for a key matching that
267 symlink would fail. Now it is enough that a matching directory entry
268 exists, symlink or not. (Bugzilla 503.)
269
2b85bce7
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270PH/03 The body_linecount and body_zerocount variables are now exported in the
271 local_scan API.
272
93655c46
PH
273PH/04 Added the $dnslist_matched variable.
274
6c512171
PH
275PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
276 This means they are set thereafter only if the connection becomes
277 encrypted.
278
279PH/06 Added the client_condition to authenticators so that some can be skipped
280 by clients under certain conditions.
281
aa6dc513
PH
282PH/07 The error message for a badly-placed control=no_multiline_responses left
283 "_responses" off the end of the name.
284
a96603a0
PH
285PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
286
8f240103
PH
287PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
288 (without spaces) instead of just copying the configuration text.
289
290PH/10 Added the /noupdate option to the ratelimit ACL condition.
291
d677b2f2
PH
292PH/11 Added $max_received_linelength.
293
d52120f2
PH
294PH/12 Added +ignore_defer and +include_defer to host lists.
295
64f2600a
PH
296PH/13 Installed PCRE version 7.2. This needed some changes because of the new
297 way in which PCRE > 7.0 is built.
298
8669f003
PH
299PH/14 Implemented queue_only_load_latch.
300
a4dc33a8
PH
301PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
302 MAIL command. The effect was to mangle the value on 64-bit systems.
303
d6a60c0f
PH
304PH/16 Another patch from the Sieve maintainer.
305
8f128379
PH
306PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
307
8932dffe
PH
308PH/18 If a system quota error occurred while trying to create the file for
309 a maildir delivery, the message "Mailbox is full" was not appended to the
310 bounce if the delivery eventually timed out. Change 4.67/27 below applied
311 only to a quota excession during the actual writing of the file.
d6a60c0f 312
ddea74fa 313PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
314 characters?) which causes problems in log lines. The DN values are now
315 passed through string_printing() before being added to log lines.
316
ddea74fa 317PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
318 and InterBase are left for another time.)
319
ddea74fa
PH
320PH/21 Added message_body_newlines option.
321
ce9f225c
PH
322PH/22 Guard against possible overflow in moan_check_errorcopy().
323
19897d52
PH
324PH/23 POSIX allows open() to be a macro; guard against that.
325
bc64a74d
PH
326PH/24 If the recipient of an error message contained an @ in the local part
327 (suitably quoted, of course), incorrect values were put in $domain and
328 $local_part during the evaluation of errors_copy.
329
eb4c0de6 330
b4ed4da0
PH
331Exim version 4.67
332-----------------
333
22ad45c9
MH
334MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
335 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
336 Jan Srzednicki.
337
b4ed4da0
PH
338PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
339 issue a MAIL command.
340
431b7361
PH
341PH/02 In an ACL statement such as
342
343 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
344
345 if a client was not listed at all, or was listed with a value other than
346 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
347 the condition was not true (as it should be), so access was not denied.
348 The bug was that the ! inversion was incorrectly passed on to the second
349 item. This has been fixed.
350
351PH/03 Added additional dnslists conditions == and =& which are different from
352 = and & when the dns lookup returns more than one IP address.
353
83da1223
PH
354PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
355 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
356
54fc8428
PH
357PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
358 FSYNC, which compiles an option called disable_fsync that allows for
359 bypassing fsync(). The documentation is heavily laced with warnings.
360
34c5e8dd
SC
361SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
362
bbe15da8
PH
363PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
364 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
365 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
366 including adding "make clean"; (3) Added -fPIC when compiling the test
367 dynamically loaded module, to get rid of a warning.
368
0e8a9471
MH
369MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
370 message fails, move_frozen_messages = true and ignore_bounce_errors_after
371 = 0s. The bug is otherwise harmless.
372
f0872424
PH
373PH/07 There was a bug in the dovecot authenticator such that the value of
374 $auth1 could be overwritten, and so not correctly preserved, after a
375 successful authentication. This usually meant that the value preserved by
376 the server_setid option was incorrect.
377
b01dd148
PH
378PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
379
6bf342e1
PH
380PH/09 Installed PCRE release 7.0.
381
273f34d0
PH
382PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
383 run for batched SMTP input. It is now run at the start of every message
384 in the batch. While fixing this I discovered that the process information
385 (output by running exiwhat) was not always getting set for -bs and -bS
386 input. This is fixed, and it now also says "batched" for BSMTP.
387
cf8b11a5
PH
388PH/11 Added control=no_pipelining.
389
41c7c167
PH
390PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
391 patch, slightly modified), and move the expansion of helo_data till after
392 the connection is made in the smtp transport (so it can use these
393 values).
394
9c57cbc0
PH
395PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
396
f3f065bb
PH
397PH/14 Added log_selector = +pid.
398
047bdd8c
PH
399PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
400
0ce9abe6
PH
401PH/16 Add ${if forany and ${if forall.
402
0e22dfd1
PH
403PH/17 Added dsn_from option to vary the From: line in DSNs.
404
4c590bd1
PH
405PH/18 Flush SMTP output before performing a callout, unless control =
406 no_callout_flush is set.
407
09945f1e
PH
408PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
409 was true (the default) a successful delivery failed to delete the retry
410 item, thus causing premature timeout of the address. The bug is now
411 fixed.
412
c51b8e75
PH
413PH/20 Added hosts_avoid_pipelining to the smtp transport.
414
e28326d8
PH
415PH/21 Long custom messages for fakedefer and fakereject are now split up
416 into multiline reponses in the same way that messages for "deny" and
417 other ACL rejections are.
418
75b1493f
PH
419PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
420 with slight modification.
421
7c5214ec
PH
422PH/23 Applied sieve patches from the maintainer "tracking the latest notify
423 draft, changing the syntax and factoring some duplicate code".
424
4311097e
PH
425PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
426 for deliveries of the second and subsequent messages over the same SMTP
427 connection.
428
29f89cad
PH
429PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
430 ${reduce, with only minor "tidies".
431
5e687460
SC
432SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
433
c3611384
PH
434PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
435 expansion side effects.
436
5a11a7b4
PH
437PH/27 When a message times out after an over-quota error from an Exim-imposed
438 quota, the bounce message says "mailbox is full". This message was not
439 being given when it was a system quota that was exceeded. It now should
440 be the same.
441
0e20aff9
MH
442MH/03 Made $recipients available in local_scan(). local_scan() already has
443 better access to the recipient list through recipients_list[], but
444 $recipients can be useful in postmaster-provided expansion strings.
445
ca86f471
PH
446PH/28 The $smtp_command and $smtp_command_argument variables were not correct
447 in the case of a MAIL command with additional options following the
448 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
449 were accidentally chopped off.
450
a14e5636
PH
451PH/29 SMTP synchronization checks are implemented when a command is read -
452 there is a check that no more input is waiting when there shouldn't be
453 any. However, for some commands, a delay in an ACL can mean that it is
454 some time before the response is written. In this time, more input might
455 arrive, invalidly. So now there are extra checks after an ACL has run for
456 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
457 pipelining has not been advertised.
458
ec95d1a6
PH
459PH/30 MH's patch to allow iscntrl() characters to be list separators.
460
42855d71
PH
461PH/31 Unlike :fail:, a custom message specified with :defer: was not being
462 returned in the SMTP response when smtp_return_error_details was false.
463 This has been fixed.
464
57c2c631
PH
465PH/32 Change the Dovecot authenticator to use read() and write() on the socket
466 instead of the C I/O that was originally supplied, because problems were
467 reported on Solaris.
468
58c01c94
PH
469PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
470 Exim which did not show up earlier: it was assuming that a call to
471 SSL_CTX_set_info_callback() might give an error value. In fact, there is
472 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
473 was a macro that became an assignment, so it seemed to work. This has
474 changed to a proper function call with a void return, hence the compile
475 error. Exim's code has been fixed.
476
dee5a20a
PH
477PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
478 cpus.
479
d2ee6114
PH
480PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
481
b2d5182b
PH
482PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
483
79749a79
PH
484PH/37 If a message is not accepted after it has had an id assigned (e.g.
485 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
486 "Completed" line in the log. When some messages of this type were
487 selected by exigrep, they were listed as "not completed". Others were
488 picked up by some special patterns. I have improved the selection
489 criteria to be more general.
79749a79 490
c456d9bb
PH
491PH/38 The host_find_failed option in the manualroute router can now be set
492 to "ignore", to completely ignore a host whose IP address cannot be
493 found. If all hosts are ignored, the behaviour is controlled by the new
494 host_all_ignored option.
495
cd9868ec
PH
496PH/39 In a list of hosts for manualroute, if one item (either because of multi-
497 homing or because of multiple MX records with /mx) generated more than
498 one IP address, and the following item turned out to be the local host,
499 all the secondary addresses of the first item were incorrectly removed
500 from the list, along with the local host and any following hosts (which
501 is what is supposed to happen).
502
ebeaf996
PH
503PH/40 When Exim receives a message, it writes the login name, uid, and gid of
504 whoever called Exim into the -H file. In the case of the daemon it was
505 behaving confusingly. When first started, it used values for whoever
506 started the daemon, but after a SIGHUP it used the Exim user (because it
507 calls itself on a restart). I have changed the code so that it now always
508 uses the Exim user.
509
2679d413
PH
510PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
511 message are rejected with the same error (e.g. no authentication or bad
512 sender address), and a DATA command is nevertheless sent (as can happen
513 with PIPELINING or a stupid MUA), the error message that was given to the
514 RCPT commands is included in the rejection of the DATA command. This is
515 intended to be helpful for MUAs that show only the final error to their
516 users.
517
84024b72
PH
518PH/42 Another patch from the Sieve maintainer.
519
8005d38e
SC
520SC/02 Eximstats - Differentiate between permanent and temporary rejects.
521 Eximstats - Fixed some broken HTML links and added missing column headers
522 (Jez Hancock).
523 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
524 columns for Rejects, Temp Rejects, Ham, and Spam rows.
525
3298c6c6
SC
526SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
527
a43a27c5
PH
528PH/43 Yet another patch from the Sieve maintainer.
529
58eb016e 530PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
531 the response to the final '.' that terminates a message, but only in the
532 case where the client has not sent further data following the '.'
533 (unfortunately, this is allowed). However, in many cases there won't be
534 any further data because there won't be any more messages to send. A call
535 to select() can be used: if it shows that the input is "ready", there is
536 either input waiting, or the socket has been closed. An attempt to read
537 the next input character can distinguish the two cases. Previously, Exim
58eb016e 538 would have sent an OK response which the client would never have see.
563b63fa
PH
539 This could lead to message repetition. This fix should cure that, at
540 least in a lot of common cases.
58eb016e 541
b43a74ea
PH
542PH/45 Do not advertise STARTTLS in response to HELP unless it would be
543 advertised in response to EHLO.
544
b4ed4da0 545
5dd1517f
PH
546Exim version 4.66
547-----------------
548
549PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
550 fixed by 4.65/MH/01 (is this a record?) are fixed:
551
552 (i) An empty string was always treated as zero by the numeric comparison
553 operators. This behaviour has been restored.
554
555 (ii) It is documented that the numeric comparison operators always treat
556 their arguments as decimal numbers. This was broken in that numbers
557 starting with 0 were being interpreted as octal.
558
559 While fixing these problems I realized that there was another issue that
560 hadn't been noticed. Values of message_size_limit (both the global option
561 and the transport option) were treated as octal if they started with 0.
562 The documentation was vague. These values are now always treated as
563 decimal, and I will make that clear in the documentation.
564
565
93cfa765
TK
566Exim version 4.65
567-----------------
568
569TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
570 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
571 versions. (#438)
572
d6066548
MH
573MH/01 Don't check that the operands of numeric comparison operators are
574 integers when their expansion is in "skipping" mode (fixes bug
575 introduced by 4.64-PH/07).
576
4362ff0d
PH
577PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
578 child addresses, Exim now panics and dies. Previously, because the count
579 is held in a short int, deliveries were likely to be lost. As such a
580 large number of recipients for a single message is ridiculous
581 (performance will be very, very poor), I have chosen to impose a limit
582 rather than extend the field.
583
93cfa765 584
944e9e9c
TF
585Exim version 4.64
586-----------------
aa41d2de 587
21d74bd9
TK
588TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
589 leftover -K file (the existence of which was triggered by #402).
590 While we were at it, introduced process PID as part of the -K
591 filename. This should rule out race conditions when creating
592 these files.
593
594TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
595 processing considerably. Previous code took too long for large mails,
596 triggering a timeout which in turn triggers #401.
597
598TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
599 in the DK code in transports.c. sendfile() is not really portable,
600 hence the _LINUX specificness.
944e9e9c
TF
601
602TF/01 In the add_headers option to the mail command in an Exim filter,
603 there was a bug that Exim would claim a syntax error in any
604 header after the first one which had an odd number of characters
605 in the field name.
606
2b1c6e3a
PH
607PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
608 callout verification, Exim cached a "reject" for the entire domain. This
609 is correct for most verifications, but it is not correct for a recipient
610 verification with use_sender or use_postmaster set, because in that case
611 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
612 case of MAIL FROM:<> rejection from other early rejections (e.g.
613 rejection of HELO). When verifying a recipient using a non-null MAIL
614 address, the cache is ignored if it shows MAIL FROM:<> rejection.
615 Whatever the result of the callout, the value of the domain cache is
616 left unchanged (for any other kind of callout, getting as far as trying
617 RCPT means that the domain itself is ok).
618
1f872c80
PH
619PH/02 Tidied a number of unused variable and signed/unsigned warnings that
620 gcc 4.1.1 threw up.
621
622PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
623 manifest itself as EPIPE rather than ECONNECT. When tidying away a
624 session, the daemon ignores ECONNECT errors and logs others; it now
625 ignores EPIPE as well.
626
d203e649
PH
627PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
628 (quoted-printable decoding).
629
cc2ed8f7 630PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 631 later the small subsequent patch to fix an introduced bug.
f951fd57 632
ddfcd446
PH
633PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
634
d45b1de8
PH
635PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
636
637PH/08 An error is now given if message_size_limit is specified negative.
638
38a0a95f 639PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 640 to be given (somewhat) arbitrary names.
38a0a95f 641
a2405d83
JJ
642JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
643 in 4.64-PH/09.
644
645JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
646 miscellaneous code fixes
647
6ea85e9a
PH
648PH/10 Added the log_reject_target ACL modifier to specify where to log
649 rejections.
650
26da7e20
PH
651PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
652 hostname. This is wrong, because it relates to the incoming message (and
653 probably the interface on which it is arriving) and not to the outgoing
654 callout (which could be using a different interface). This has been
655 changed to use the value of the helo_data option from the smtp transport
656 instead - this is what is used when a message is actually being sent. If
657 there is no remote transport (possible with a router that sets up host
658 addresses), $smtp_active_hostname is used.
6ea85e9a 659
14aa5a05 660PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 661 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
662 (a) The code assumed that strncpy() returns a negative number on buffer
663 overflow, which isn't the case. Replaced with Exim's string_format()
664 function.
665 (b) There were several signed/unsigned issues. I just did the minimum
666 hacking in of casts. There is scope for a larger refactoring.
667 (c) The code used strcasecmp() which is not a standard C function.
668 Replaced with Exim's strcmpic() function.
669 (d) The code set only $1; it now sets $auth1 as well.
670 (e) A simple test gave the error "authentication client didn't specify
671 service in request". It would seem that Dovecot has changed its
672 interface. Fortunately there's a specification; I followed it and
673 changed what the client sends and it appears to be working now.
674
ff75a1f7
PH
675PH/13 Added $message_headers_raw to provide the headers without RFC 2047
676 decoding.
677
e6f6568e
PH
678PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
679 address A is aliased to B and C, where B exists and C does not. Without
680 -v the output is "A verified" because verification stops after a
681 successful redirection if more than one address is generated. However,
682 with -v the child addresses are also verified. Exim was outputting "A
683 failed to verify" and then showing the successful verification for C,
684 with its parentage. It now outputs "B failed to verify", showing B's
685 parentage before showing the successful verification of C.
686
d6f6e0dc
PH
687PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
688 look up a TXT record in a specific list after matching in a combined
689 list.
690
322050c2
PH
691PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
692 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
693 they consult the DNS. I had assumed they would set it the way they
694 wanted; and indeed my experiments on Linux seem to show that in some
695 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
696 To be on the safe side, however, I have now made the interface to
697 host_find_byname() similar to host_find_bydns(), with an argument
698 containing the DNS resolver options. The host_find_byname() function now
699 sets these options at its start, just as host_find_bydns() does. The smtp
700 transport options dns_qualify_single and dns_search_parents are passed to
701 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
702 of host_find_byname() use the default settings of RES_DEFNAMES
703 (qualify_single) but not RES_DNSRCH (search_parents).
704
08955dd3
PH
705PH/17 Applied (a modified version of) Nico Erfurth's patch to make
706 spool_read_header() do less string testing, by means of a preliminary
707 switch on the second character of optional "-foo" lines. (This is
708 overdue, caused by the large number of possibilities that now exist.
709 Originally there were few.) While I was there, I also converted the
710 str(n)cmp tests so they don't re-test the leading "-" and the first
711 character, in the hope this might squeeze out yet more improvement.
712
1eccaa59
PH
713PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
714 flag allowing group syntax was set by the header_syntax check but not
715 turned off, possible causing trouble later; (2) The flag was not being
716 set at all for the header_verify test, causing "group"-style headers to
717 be rejected. I have now set it in this case, and also caused header_
718 verify to ignore an empty address taken from a group. While doing this, I
719 came across some other cases where the code for allowing group syntax
720 while scanning a header line wasn't quite right (mostly, not resetting
721 the flag correctly in the right place). These bugs could have caused
722 trouble for malformed header lines. I hope it is now all correct.
723
602e59e5
PH
724PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
725 with the "reply" argument non-NULL. The code, however (which originally
726 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
727 but it didn't always do it. This confused somebody who was copying the
728 code for some other use. I have removed all the tests.
729
411ef850
PH
730PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
731 feature that was used to support insecure browsers during the U.S. crypto
732 embargo. It requires special client support, and Exim is probably the
733 only MTA that supported it -- and would never use it because real RSA is
734 always available. This code has been removed, because it had the bad
735 effect of slowing Exim down by computing (never used) parameters for the
736 RSA_EXPORT functionality.
737
7befa435
PH
738PH/21 On the advice of Timo Sirainen, added a check to the dovecot
739 authenticator to fail if there's a tab character in the incoming data
740 (there should never be unless someone is messing about, as it's supposed
741 to be base64-encoded). Also added, on Timo's advice, the "secured" option
742 if the connection is using TLS or if the remote IP is the same as the
743 local IP, and the "valid-client-cert option" if a client certificate has
744 been verified.
745
48da4259 746PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
747 authenticators. This can be used for authorization after authentication
748 succeeds. (In the case of plaintext, it servers for both authentication
749 and authorization.)
750
48da4259
PH
751PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
752 if any retry times were supplied.
753
d1d5595c
PH
754PH/24 Exim crashed if verify=helo was activated during an incoming -bs
755 connection, where there is no client IP address to check. In this
756 situation, the verify now always succeeds.
757
0ef732d9
PH
758PH/25 Applied John Jetmore's -Mset patch.
759
328895cc
PH
760PH/26 Added -bem to be like -Mset, but loading a message from a file.
761
fd700877
PH
762PH/27 In a string expansion for a processed (not raw) header when multiple
763 headers of the same name were present, leading whitespace was being
764 removed from all of them, but trailing whitespace was being removed only
765 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
766 before concatenation. Completely empty headers in a concatenation (as
767 before) are ignored.
fd700877 768
8dce1a6f
PH
769PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
770 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
771
17af4a17
PH
772PH/29 [Removed. This was a change that I later backed out, and forgot to
773 correct the ChangeLog entry (that I had efficiently created) before
774 committing the later change.]
f6c332bd
PH
775
776PH/30 Exim was sometimes attempting to deliver messages that had suffered
777 address errors (4xx response to RCPT) over the same connection as other
778 messages routed to the same hosts. Such deliveries are always "forced",
779 so retry times are not inspected. This resulted in far too many retries
780 for the affected addresses. The effect occurred only when there were more
781 hosts than the hosts_max_try setting in the smtp transport when it had
782 the 4xx errors. Those hosts that it had tried were not added to the list
783 of hosts for which the message was waiting, so if all were tried, there
784 was no problem. Two fixes have been applied:
785
786 (i) If there are any address or message errors in an SMTP delivery, none
787 of the hosts (tried or untried) are now added to the list of hosts
788 for which the message is waiting, so the message should not be a
789 candidate for sending over the same connection that was used for a
790 successful delivery of some other message. This seems entirely
791 reasonable: after all the message is NOT "waiting for some host".
792 This is so "obvious" that I'm not sure why it wasn't done
793 previously. Hope I haven't missed anything, but it can't do any
794 harm, as the worst effect is to miss an optimization.
795
796 (ii) If, despite (i), such a delivery is accidentally attempted, the
797 routing retry time is respected, so at least it doesn't keep
798 hammering the server.
799
c1114884
PH
800PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
801 in ${readsocket because some servers need this prod.
802
7a0743eb
PH
803PH/32 Added some extra debug output when updating a wait-xxx database.
804
0d85fa3f
PH
805PH/33 The hint "could be header name not terminated by colon", which has been
806 given for certain expansion errors for a long time, was not being given
807 for the ${if def:h_colon_omitted{... case.
808
1bf43b78
PH
809PH/34 The spec says: "With one important exception, whenever a domain list is
810 being scanned, $domain contains the subject domain." There was at least
811 one case where this was not true.
812
520de300
PH
813PH/35 The error "getsockname() failed: connection reset by peer" was being
814 written to the panic log as well as the main log, but it isn't really
815 panic-worthy as it just means the connection died rather early on. I have
816 removed the panic log writing for the ECONNRESET error when getsockname()
817 fails.
818
48c7f9e2
PH
819PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
820 runs only) independently of the message's sender address. This meant
821 that, if the 4xx error was in fact related to the sender, a different
822 message to the same recipient with a different sender could confuse
823 things. In particualar, this can happen when sending to a greylisting
824 server, but other circumstances could also provoke similar problems.
825 I have changed the default so that the retry time for these errors is now
826 based a combination of the sender and recipient addresses. This change
827 can be overridden by setting address_retry_include_sender=false in the
828 smtp transport.
829
99ea1c86
PH
830PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
831 remote server are returned as part of bounce messages. This was not
832 happening for LMTP over a pipe (the lmtp transport), but now it is the
833 same for both kinds of LMTP.
834
a2042e78
PH
835PH/38 Despite being documented as not happening, Exim was rewriting addresses
836 in header lines that were in fact CNAMEs. This is no longer the case.
837
4fbcfc2e
PH
838PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
839 and queue runs started by the daemon processed all messages. This has
840 been fixed so that -R and -S can now usefully be given with -q<time>.
841
aa41d2de
PH
842PH/40 Import PCRE release 6.7 (fixes some bugs).
843
af561417
PH
844PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
845
3cc66b45
PH
846PH/42 Give an error if -q is specified more than once.
847
194cc0e4
PH
848PH/43 Renamed the variables $interface_address and $interface_port as
849 $received_ip_address and $received_port, to make it clear that these
850 values apply to message reception, and not to the outgoing interface when
851 a message is delivered. (The old names remain recognized, of course.)
852
a401ddaa
PH
853PH/44 There was no timeout on the connect() call when using a Unix domain
854 socket in the ${readsocket expansion. There now is.
855
4e88a19f
PH
856PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
857 be meaningful with "accept".
858
d7d7b289
SC
859SC/01 Eximstats V1.43
860 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
861
862SC/02 Eximstats V1.44
863 Use a glob alias rather than an array ref in the generated
864 parser. This improves both readability and performance.
865
866SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
867 Collect SpamAssassin and rejection statistics.
868 Don't display local sender or destination tables unless
869 there is data to show.
870 Added average volumes into the top table text output.
871
872SC/04 Eximstats V1.46
873 Collect data on the number of addresses (recipients)
874 as well as the number of messages.
875
876SC/05 Eximstats V1.47
877 Added 'Message too big' to the list of mail rejection
878 reasons (thanks to Marco Gaiarin).
879
880SC/06 Eximstats V1.48
881 Mainlog lines which have GMT offsets and are too short to
882 have a flag are now skipped.
883
884SC/07 Eximstats V1.49 (Alain Williams)
885 Added the -emptyok flag.
886
887SC/08 Eximstats V1.50
888 Fixes for obtaining the IP address from reject messages.
889
0ea2a468
JJ
890JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
891 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
892 whitesspace changes from 4.64-PH/27
893
894JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
895 match 4.64-PH/13
896
897JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
898 are found, allow negative numbers in numeric criteria)
899
900JJ/06 exipick.20061117.2, added new $message_body_missing variable
901
902JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
903 to match changes made in 4.64-PH/43
904
8a10f5a4
PH
905PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
906
30e18802
PH
907PH/47 Put in an explicit test for a DNS lookup of an address record where the
908 "domain" is actually an IP address, and force a failure. This locks out
909 those revolvers/nameservers that support "A-for-A" lookups, in
910 contravention of the specifications.
911
55728a4f
PH
912PH/48 When a host name was looked up from an IP address, and the subsequent
913 forward lookup of the name timed out, the host name was left in
914 $sender_host_name, contrary to the specification.
d7d7b289 915
d7837193
PH
916PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
917 restricted to single-key lookups, Exim was not diagnosing an error if
918 * or *@ was used with a query-style lookup.
919
87054a31
PH
920PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
921
ea2c01d2
MH
922MH/01 local_scan ABI version incremented to 1.1. It should have been updated
923 long ago, but noone interested enough thought of it. Let's just say that
924 the "1.1" means that there are some new functions that weren't there at
925 some point in the past.
926
e4fa6968
PH
927PH/51 Error processing for expansion failure of helo_data from an smtp
928 transport during callout processing was broken.
929
56f5d9bd
PH
930PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
931 tested/used via the -bh/-bhc/-bs options.
932
922e1c28
PH
933PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
934 bug, fixed in subsequent PCRE releases).
935
21eb6e72
PH
936PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
937 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
938
a0540757
PH
939PH/55 Check for a ridiculously long file name in exim_dbmbuild.
940
944e9e9c 941
478be7b0
SC
942Exim version 4.63
943-----------------
944
945SC/01 Use a glob alias rather than an array ref in eximstats generated
946 parser. This improves both readability and performance.
947
948SC/02 Collect SpamAssassin and rejection statistics in eximstats.
949 Don't display local sender or destination tables in eximstats unless
950 there is data to show.
951 Added average volumes into the eximstats top table text output.
952
953SC/03 Collect data on the number of addresses (recipients) as well
954 as the number of messages in eximstats.
955
2b965a65
TF
956TF/01 Correct an error in the documentation for the redirect router. Exim
957 does (usually) call initgroups() when daemonizing.
478be7b0 958
45b91596
PH
959TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
960 with consistent privilege compared to when running as a daemon.
478be7b0 961
c59f5781
TF
962TF/03 Note in the spec that $authenticated_id is not set for local
963 submissions from trusted users.
964
90fc3069
TF
965TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
966 Thanks to Dean Brooks <dean@iglou.com> for the patch.
967
6083aca0
TF
968TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
969 by adding some example configuration directives to the default
970 configuration file. A little bit of work is required to uncomment the
971 directives and define how usernames and passwords are checked, but
972 there is now a framework to start from.
973
765b530f
PH
974PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
975 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
976 without this. I don't know how relevant this is to other LDAP libraries.
977
4e167a8c
PH
978PH/02 Add the verb name to the "unknown ACL verb" error.
979
4608d683
PH
980PH/03 Magnus Holmgren's patch for filter_prepend_home.
981
b8dc3e4a
PH
982PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
983
5418e93b
PH
984PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
985 directory not expanded when it should be if an expanded home directory
986 was set for the address (which is overridden by the transport).
987
b4a9bda2
PH
988PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
989 libradius.
990
45b91596
PH
991PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
992 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
993 because it is too late at that time, and has no effect.
994
5547e2c5
PH
995PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
996 security issue with \' (bugzilla #107). I could not use the
997 PQescapeStringConn() function, because it needs a PGconn value as one of
998 its arguments.
999
dbcef0ea
PH
1000PH/08 When testing addresses using -bt, indicate those final addresses that
1001 are duplicates that would not cause an additional delivery. At least one
1002 person was confused, thinking that -bt output corresponded to deliveries.
1003 (Suppressing duplicates isn't a good idea as you lose the information
1004 about possibly different redirections that led to the duplicates.)
1005
25257489
PH
1006PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1007 systems where poll() doesn't work, in particular OS X.
1008
c816d124
PH
1009PH/10 Added more information to debugging output for retry time not reached.
1010
a9ccd69a
PH
1011PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1012 operations in malware.c.
1013
75fa1910
PH
1014PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1015 signatures.
1016
a7d7aa58
PH
1017PH/13 If write_rejectlog was set false when logging was sent to syslog with
1018 syslog_duplication set false, log lines that would normally be written
1019 both the the main log and to the reject log were not written to syslog at
1020 all.
1021
42119b09
PH
1022PH/14 In the default configuration, change the use of "message" in ACL warn
1023 statements to "add_header".
1024
41609df5
PH
1025PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1026 not followed by a command (e.g. "seen endif").
1027
a5bd321b
PH
1028PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1029 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1030 latter.
1031
e85a7ad5 1032PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1033 so that it is now:
1034
e85a7ad5
PH
1035 ${if or { \
1036 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1037 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1038 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1039 }{no}{yes}}
1040
e85a7ad5
PH
1041 The Auto-Submitted: and various List- headers are standardised, whereas I
1042 don't think Precedence: ever was.
5dff5817 1043
d8fe1c03
PH
1044PH/18 Refactored debugging code in route_finduser() to show more information,
1045 in particular, the error code if getpwnam() issues one.
1046
16282d2b
PH
1047PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1048 This is apparently needed in addition to the PH/07 change above to avoid
1049 any possible encoding problems.
1050
35d40a98
PH
1051PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1052 but not after initializing Perl.
1053
034d99ab
PH
1054PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1055 output them only if debugging. By default they are written stderr,
1056 apparently, which is not desirable.
1057
6ec97b1b
PH
1058PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1059 queries.
1060
e22ca4ac
JJ
1061JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1062 --not options
1063
1064JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1065
33d73e3b
PH
1066PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1067 authenticated or an ident call has been made. Suppress the default
1068 values for $authenticated_id and $authenticated_sender (but permit -oMai
1069 and -oMas) when testing with -bh.
1070
9ecb03f3
PH
1071PH/24 Re-jigged the order of the tests in the default configuration so that the
1072 tests for valid domains and recipients precede the DNS black list and CSA
1073 tests, on the grounds that those ones are more expensive.
1074
084efe8d
PH
1075PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1076 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1077 This bug exists in every version of Exim that I still have, right back to
1078 0.12.
1079
366fc9f0
PH
1080PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1081 However, an attempt to turn on case-sensitivity in a regex key by
1082 including (?-i) didn't work because the subject string was already
1083 lowercased, and the effects were non-intuitive. It turns out that a
1084 one-line patch can be used to allow (?-i) to work as expected.
1085
c59f5781 1086
c887c79e
TF
1087Exim version 4.62
1088-----------------
1089
1090TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1091 other effects) broke the use of negated acl sub-conditions.
1092
1cce3af8
PH
1093PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1094 patch).
1095
afb3eaaf
PH
1096PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1097 "Deny" causes Exim to reject the incoming connection with a 554 error.
1098 Unfortunately, if there is a major crisis, such as a disk failure,
1099 tcp-wrappers gives "deny", whereas what one would like would be some
1100 kind of temporary error. A kludge has been added to help with this.
1101 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1102 554 error is used if errno is still zero or contains ENOENT (which occurs
1103 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1104 451 error is used.
1105
e173618b
PH
1106PH/03 Add -lutil to the default FreeBSD LIBS setting.
1107
dd16e114
PH
1108PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1109 errors. Otherwise a message that provokes a temporary error (when other
1110 messages do not) can cause a whole host to time out.
1111
f7fd3850
PH
1112PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1113 addresses were routed directly to files or pipes from a redirect router.
1114 File deliveries just didn't batch; pipe deliveries might have suffered
1115 odd errors.
1116
d87df92c
PH
1117PH/06 A failure to get a lock for a hints database would erroneously always say
1118 "Failed to get write lock", even when it was really a read lock.
1119
7e9f683d
PH
1120PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1121 of 0600. This has been changed to use the value of the lockfile_mode
1122 option (which defaults to 0600).
1123
bfad5236
PH
1124PH/08 Applied small patch from the Sieve maintainer.
1125
01c490df
PH
1126PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1127 folder from quota calculations, a direct delivery into this folder messed
1128 up the contents of the maildirsize file. This was because the regex was
1129 used only to exclude .Trash (or whatever) when the size of the mailbox
1130 was calculated. There was no check that a delivery was happening into an
1131 excluded directory. This bug has been fixed by ignoring all quota
1132 processing for deliveries into excluded directories.
1133
d6629cdc
PH
1134PH/10 Added the maildirfolder_create_regex option to appendfile.
1135
1cce3af8 1136
214e2000
PH
1137Exim version 4.61
1138-----------------
1139
1140PH/01 The code for finding all the local interface addresses on a FreeBSD
1141 system running IPv6 was broken. This may well have applied to all BSD
1142 systems, as well as to others that have similar system calls. The broken
1143 code found IPv4 interfaces correctly, but gave incorrect values for the
1144 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1145 that it would not match correctly against @[] and not recognize the IPv6
1146 addresses as local.
1147
f9daeae0
PH
1148PH/02 The ipliteral router was not recognizing addresses of the form user@
1149 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1150
7e66e54d
PH
1151PH/03 Added disable_ipv6.
1152
c8ea1597
PH
1153PH/04 Changed $reply_address to use the raw form of the headers instead of the
1154 decoded form, because it is most often used to construct To: headers
1155 lines in autoreplies, and the decoded form may well be syntactically
1156 invalid. However, $reply_address has leading white space removed, and all
1157 newlines turned into spaces so that the autoreply transport does not
1158 grumble.
1159
911f6fde
PH
1160PH/05 If group was specified without a user on a router, and no group or user
1161 was specified on a transport, the group from the router was ignored.
1162
47ca6d6c
PH
1163PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1164 for visible compile-time settings that can be used to change these
1165 numbers, for those that want even more. Backwards compatibility with old
1166 spool files has been maintained. However, going back to a previous Exim
1167 release will lost any variables that are in spool files.
1168
ed0e9820
PH
1169PH/07 Two small changes when running in the test harness: increase delay when
1170 passing a TCP/IP connection to a new process, in case the original
1171 process has to generate a bounce, and remove special handling of
1172 127.0.0.2 (sic), which is no longer necessary.
1173
eff37e47
PH
1174PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1175 be the same on different OS.
1176
1921d2ea
PH
1177PH/09 Moved a debug statement in filter processing to avoid a race problem when
1178 testing.
1179
b3f69ca8
JJ
1180JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1181 whether --show-vars was specified or not
1182
1183JJ/02 exipick: Added support for new ACL variable spool format introduced
1184 in 4.61-PH/06
1185
424a1c63
PH
1186PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1187 syntactically invalid From: or Reply-to: line, and a filter used this to
1188 generate an autoreply, and therefore failed to obtain an address for the
1189 autoreply, Exim could try to deliver to a non-existent relative file
1190 name, causing unrelated and misleading errors. What now happens is that
1191 it logs this as a hard delivery error, but does not attempt to create a
1192 bounce message.
1193
7a100415
PH
1194PH/11 The exinext utility has a -C option for testing purposes, but although
1195 the given file was scanned by exinext itself; it wasn't being passed on
1196 when Exim was called.
1197
19b9dc85
PH
1198PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1199 an end-of-file indication when reading a command response.
1200
309bd837
PH
1201PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1202 compiled. In many other places in Exim, IPv6 addresses are always
1203 recognized, so I have changed this. It also means that IPv4 domain
1204 literals of the form [IPV4:n.n.n.n] are now always recognized.
1205
59e82a2a
PH
1206PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1207 used if the router is not running as root, for example, when verifying at
1208 ACL time, or when using -bh. The debugging output from this situation was
1209 non-existent - all you got was a failure to exec. I have made two
1210 changes:
1211
1212 (a) Failures to set uid/gid, the current directory, or a process leader
1213 in a subprocess such as that created by queryprogram now generate
1214 suitable debugging ouput when -d is set.
1215
1216 (b) The queryprogram router detects when it is not running as root,
1217 outputs suitable debugging information if -d is set, and then runs
1218 the subprocess without attempting to change uid/gid.
1219
9edc04ce
PH
1220PH/15 Minor change to Makefile for building test_host (undocumented testing
1221 feature).
1222
1349e1e5
PH
1223PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1224 additional section of a DNS packet that returns MX or SRV records.
1225 Instead, it always explicitly searches for A/AAAA records. This avoids
1226 major problems that occur when a DNS server includes only records of one
1227 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1228 fixed another bug: if SRV records were looked up and the corresponding
1229 address records were *not* found in the additional section, the port
1230 values from the SRV records were lost.
1231
ea49d0e1
PH
1232PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1233 using the correct key (the original address) when searching the retry
1234 rules in order to find which one to use for generating the retry hint.
1235
064a94c9
PH
1236PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1237 adding the default one. Similarly, if it contains a Reply-To: header, the
1238 errors_reply_to option, if set, is not used.
1239
727071f8
PH
1240PH/19 When calculating a retry time, Exim used to measure the "time since
1241 failure" by looking at the "first failed" field in the retry record. Now
1242 it does not use this if it is later than than the arrival time of the
1243 message. Instead it uses the arrival time. This makes for better
1244 behaviour in cases where some deliveries succeed, thus re-setting the
1245 "first failed" field. An example is a quota failure for a huge message
1246 when small messages continue to be delivered. Without this change, the
1247 "time since failure" will always be short, possible causing more frequent
1248 delivery attempts for the huge message than are intended.
dd16e114 1249 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1250
f78eb7c6
PH
1251PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1252 $1, $2, $3) because the numerical variables can be reset during some
1253 expansion items (e.g. "match"), thereby losing the authentication data.
1254
21c28500
PH
1255PH/21 Make -bV show the size of off_t variables so that the test suite can
1256 decide whether to run tests for quotas > 2G.
1257
1258PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1259 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1260 filecount value is greater than 2G or if a quota value is greater than 2G
1261 on a system where the size of off_t is not greater than 4, a panic error
1262 is given.
1263
1688f43b
PH
1264PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1265 never match. The debug and -bh output now contains an explicit error
1266 message indicating a malformed IPv4 address or mask.
1267
1268PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1269 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1270 PH/23 above applies.
1271
9675b384
PH
1272PH/25 Do not write to syslog when running in the test harness. The only
1273 occasion when this arises is a failure to open the main or panic logs
1274 (for which there is an explicit test).
1275
6a3f1455
PH
1276PH/26 Added the /no_tell option to "control=freeze".
1277
dac79d3e
PH
1278PH/27 If a host name lookup failed very early in a connection, for example, if
1279 the IP address matched host_lookup and the reverse lookup yielded a name
1280 that did not have a forward lookup, an error message of the form "no IP
1281 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1282 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1283
5977a0b3
PH
1284PH/28 An enabling patch from MH: add new function child_open_exim2() which
1285 allows the sender and the authenticated sender to be set when
1286 submitting a message from within Exim. Since child_open_exim() is
1287 documented for local_scan(), the new function should be too.
1288
c91535f3
PH
1289PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1290 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1291 results in an empty string is now treated as unset.
1292
0d46a8c8
PH
1293PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1294
278c6e6c
PH
1295PH/31 Added sender_verify_fail logging option.
1296
2cbb4081
PH
1297PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1298 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1299 tidied the source and removed it altogether.
1300
3eef829e
PH
1301PH/33 When a queue run was abandoned because the load average was too high, a
1302 log line was always written; now it is written only if the queue_run log
1303 selector is set. In addition, the log line for abandonment now contains
1304 information about the queue run such as the pid. This is always present
1305 in "start" and "stop" lines but was omitted from the "abandon" line.
1306
1ab95fa6
PH
1307PH/34 Omit spaces between a header name and the colon in the error message that
1308 is given when verify = headers_syntax fails (if there are lots of them,
1309 the message gets confusing).
1310
230205fc
PH
1311PH/35 Change the default for dns_check_names_pattern to allow slashes within
1312 names, as there are now some PTR records that contain slashes. This check
1313 is only to protect against broken name servers that fall over on strange
1314 characters, so the fact that it applies to all lookups doesn't matter.
1315
75e0e026
PH
1316PH/36 Now that the new test suite is complete, we can remove some of the
1317 special code in Exim that was needed for the old test suite. For example,
1318 sorting DNS records because real resolvers return them in an arbitrary
1319 order. The new test suite's fake resolver always returns records in the
1320 same order.
1321
1322PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1323 bounces) except when queue_only is set, to avoid logging races between
1324 the different processes.
1325
145396a6
PH
1326PH/38 Panic-die if .include specifies a non-absolute path.
1327
3cd34f13
PH
1328PH/39 A tweak to the "H" retry rule from its user.
1329
11121d3d
JJ
1330JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1331 a label. They prevented compilation on older perls.
1332
1333JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1334 a warning to be raised on newish perls.
1335
1336JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1337 on queue. Changes to match documented behaviour of showing count of
1338 messages matching specified criteria.
1339
8def5aaf
PH
1340PH/40 Changed the default ident timeout from 30s to 5s.
1341
929ba01c
PH
1342PH/41 Added support for the use of login_cap features, on those BSD systems
1343 that have them, for controlling the resources used by pipe deliveries.
1344
2632889e
PH
1345PH/42 The content-scanning code uses fopen() to create files in which to put
1346 message data. Previously it was not paying any attention to the mode of
1347 the files. Exim runs with umask(0) because the rest of the code creates
1348 files with open(), and sets the required mode explicitly. Thus, these
1349 files were ending up world-writeable. This was not a big issue, because,
1350 being within the spool directory, they were not world-accessible. I have
1351 created a function called modefopen, which takes an additional mode
1352 argument. It sets umask(777), creates the file, chmods it to the required
1353 mode, then resets the umask. All the relevant calls to fopen() in the
1354 content scanning code have been changed to use this function.
1355
944a9c55
PH
1356PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1357 to 24 hours. This avoids potential overflow problems when processing G
1358 and H retry rules. I suspect nobody ever tinkers with this value.
1359
4a23603b
PH
1360PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1361
4730f942
PH
1362PH/45 When the plaintext authenticator is running as a client, the server's
1363 challenges are checked to ensure they are valid base64 strings. By
1364 default, the authentication attempt is cancelled if an invalid string is
1365 received. Setting client_ignore_invalid_base64 true ignores these errors.
1366 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1367 they are received. Thus, the responses can be made to depend on the
1368 challenges. If an invalid string is ignored, an empty string is placed in
1369 the variable.
1370
30dba1e6
PH
1371PH/46 Messages that are created by the autoreply transport now contains a
1372 References: header, in accordance with RFCs 2822 and 3834.
1373
382afc6b
PH
1374PH/47 Added authenticated_sender_force to the smtp transport.
1375
a86229cf
PH
1376PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1377
50c99ba6
PH
1378PH/49 Installed latest patch from the Sieve maintainer.
1379
d35e429d
PH
1380PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1381 was also set, the appendfile transport was unnecessarily scanning a
1382 directory of message files (e.g. for maildir delivery) to find the count
1383 of files (along with the size), even though it did not need this
1384 information. It now does the scan only if it needs to find either the
1385 size of the count of files.
1386
f90d018c
PH
1387PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1388
75def545
PH
1389PH/52 Two bugs concerned with error handling when the smtp transport is
1390 used in LMTP mode:
1391
1392 (i) Exim was not creating retry information for temporary errors given
1393 for individual recipients after the DATA command when the smtp transport
1394 was used in LMTP mode. This meant that they could be retried too
1395 frequently, and not timed out correctly.
1396
1397 (ii) Exim was setting the flag that allows error details to be returned
1398 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1399 recipients that were returned after the DATA command.
1400
1401PH/53 This is related to PH/52, but is more general: for any failing address,
1402 when detailed error information was permitted to be returned to the
1403 sender, but the error was temporary, then after the final timeout, only
1404 "retry timeout exceeded" was returned. Now it returns the full error as
1405 well as "retry timeout exceeded".
1406
c46782ef
PH
1407PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1408 do this, and (what is worse) MTAs that accept it.
1409
71fafd95
PH
1410PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1411 will now be deprecated.
1412
2c5db4fd
PH
1413PH/56 New os.c-cygwin from the Cygwin maintainer.
1414
9cf6b11a
JJ
1415JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1416 formats (previously only available in exim formats via -bpr, -bpru,
1417 and -bpra. Now also available in native and exiqgrep formats)
1418
1419JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1420 with very large, slow to parse queues
1421
1422JJ/08 exipick: added ! as generic prefix to negate any criteria format
1423
1424JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1425
898d150f
PH
1426PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1427 responses to authentication challenges, though it was showing the
1428 challenges; (ii) I've removed the CR characters from the debug output for
1429 SMTP output lines.
1430
46218253
PH
1431PH/58 Allow for the insertion of a newline as well as a space when a string
1432 is turned into more than one encoded-word during RFC 2047 encoding. The
1433 Sieve code now uses this.
1434
e97957bc
PH
1435PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1436 data_4xx, lost_connection, tls_required.
1437
81e509d7
PH
1438PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1439 message was being sent as an SMTP response.
1440
3d240ff7
PH
1441PH/61 Add -l and -k options to exicyclog.
1442
b37c4101
PH
1443PH/62 When verifying, if an address was redirected to one new address, so that
1444 verification continued, and the new address failed or deferred after
1445 having set something in $address_data, the value of $address_data was not
1446 passed back to the ACL. This was different to the case when no
1447 redirection occurred. The value is now passed back in both cases.
1448
79378e0f
PH
1449PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1450 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1451 use login_cap.h, so on its own it isn't the distinguishing feature. The
1452 new name refers directly to the setclassresources() function.
1453
e49c7bb4
PH
1454PH/65 Added configuration files for NetBSD3.
1455
d114ec46
PH
1456PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1457
f3d7df6c
PH
1458PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1459 is preferred over IPv4.
1460
715ab376
PH
1461PH/68 The bounce_return_message and bounce_return_body options were not being
1462 honoured for bounces generated during the reception of non-SMTP messages.
1463 In particular, this applied to messages rejected by the ACL. This bug has
1464 been fixed. However, if bounce_return_message is true and bounce_return_
1465 body is false, the headers that are returned for a non-SMTP message
1466 include only those that have been read before the error was detected.
1467 (In the case of an ACL rejection, they have all been read.)
1468
6b31b150
PH
1469PH/69 The HTML version of the specification is now built in a directory called
1470 spec_html instead of spec.html, because the latter looks like a path with
1471 a MIME-type, and this confuses some software.
1472
1473PH/70 Catch two compiler warnings in sieve.c.
1474
d515a917
PH
1475PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1476 function verify_get_ident() calls ip_connect() to connect a socket, but
1477 if the "connect()" function timed out, ip_connect() used to close the
1478 socket. However, verify_get_ident() also closes the socket later, and in
1479 between Exim writes to the log, which may get opened at this point. When
1480 the socket was closed in ip_connect(), the log could get the same file
1481 descriptor number as the socket. This naturally causes chaos. The fix is
1482 not to close the socket in ip_connect(); the socket should be closed by
1483 the function that creates it. There was only one place in the code where
1484 this was missing, in the iplookup router, which I don't think anybody now
1485 uses, but I've fixed it anyway.
1486
9b8fadde
PH
1487PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1488 well as to direct DNS lookups. Otherwise the handling of names in host
1489 lists is inconsistent and therefore confusing.
1490
214e2000 1491
5de37277
PH
1492Exim version 4.60
1493-----------------
1494
cc38ddbf
PH
1495PH/01 Two changes to the default runtime configuration:
1496
1497 (1) Move the checks for relay_from_hosts and authenticated clients from
1498 after to before the (commented out) DNS black list checks.
1499
1500 (2) Add control=submission to the relay_from_hosts and authenticated
1501 clients checks, on the grounds that messages accepted by these
1502 statements are most likely to be submissions.
5de37277 1503
72fdd6ae
PH
1504PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1505
1506 (1) Generate an error if the third argument for the ${prvs expansion is
1507 not a single digit.
1508
1509 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1510 string.
1511
1512 (3) Reset the variables that are obtained from the first argument of
1513 ${prvscheck and used in the second argument before leaving the code,
1514 because their memory is reclaimed, so using them afterwards may do
1515 silly things.
1516
1517 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1518 one (it's much easier than Tom thought :-).
1519
1520 (5) Because of (4), we can now allow for the use of $prvscheck_result
1521 inside the third argument.
cb9328de 1522
cb741023
PH
1523PH/03 For some reason, the default setting of PATH when running a command from
1524 a pipe transport was just "/usr/bin". I have changed it to
1525 "/bin:/usr/bin".
1526
f174f16e
PH
1527PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1528 anything to be listed in the output from -bV.
b2f5a032 1529
c25242d7
PH
1530PH/05 When a filter generated an autoreply, the entire To: header line was
1531 quoted in the delivery log line, like this:
1532
1533 => >A.N.Other <ano@some.domain> <original@ddress> ...
1534
1535 This has been changed so that it extracts the operative address. There
1536 may be more than one such address. If so, they are comma-separated, like
1537 this:
1538
1539 => >ano@some.domain,ona@other.domain <original@ddress> ...
1540
82c19f95
PH
1541PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1542 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1543 not being looked up in the rDNS to get a host name, Exim was showing the
1544 IP address twice in Received: lines, even though the IP addresses were
1545 identical. For example:
1546
1547 Received: from [1.2.3.4] (helo=[1.2.3.4])
1548
1549 However, if the real host name was known, it was omitting the HELO data
1550 if it matched the actual IP address. This has been tidied up so that it
1551 doesn't show the same IP address twice.
1552
d7ffbc12
PH
1553PH/07 When both +timestamp and +memory debugging was on, the value given by
1554 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1555 called by the debug printing, thereby overwriting the timestamp buffer.
1556 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1557
9f526266
PH
1558PH/08 When the original message was included in an autoreply transport, it
1559 always said "this is a copy of the message, including all the headers",
1560 even if body_only or headers_only was set. It now gives an appropriate
1561 message.
1562
87fcc8b9
PH
1563PH/09 Applied a patch from the Sieve maintainer which:
1564
1565 o fixes some comments
1566 o adds the (disabled) notify extension core
1567 o adds some debug output for the result of if/elsif tests
1568 o points to the current vacation draft in the documentation
1569 and documents the missing references header update
1570
1571 and most important:
1572
1573 o fixes a bug in processing the envelope test (when testing
1574 multiple envelope elements, the last element determinted the
1575 result)
1576
456682f5
PH
1577PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1578 Electronic Mail") by including:
1579
1580 Auto-submitted: auto-generated
1581
1582 in the messages that it generates (bounce messages and others, such as
1583 warnings). In the case of bounce messages for non-SMTP mesages, there was
1584 also a typo: it was using "Auto_submitted" (underscore instead of
1585 hyphen). Since every message generated by Exim is necessarily in response
1586 to another message, thes have all been changed to:
1587
1588 Auto-Submitted: auto-replied
1589
1590 in accordance with these statements in the RFC:
1591
1592 The auto-replied keyword:
1593
1594 - SHOULD be used on messages sent in direct response to another
1595 message by an automatic process,
1596
1597 - MUST NOT be used on manually-generated messages,
1598
1599 - MAY be used on Delivery Status Notifications (DSNs) and Message
1600 Disposition Notifications (MDNs),
1601
1602 - MUST NOT be used on messages generated by automatic or periodic
1603 processes, except for messages which are automatic responses to
1604 other messages.
1605
3e46c1aa
PH
1606PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1607 to the default Received: header definition.
456682f5 1608
49826d12
PH
1609PH/12 Added log selector acl_warn_skipped (default on).
1610
eba0c039
PH
1611PH/13 After a successful wildlsearch lookup, discard the values of numeric
1612 variables because (a) they are in the wrong storage pool and (b) even if
1613 they were copied, it wouldn't work properly because of the caching.
1614
a0d6ba8a
PH
1615PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1616 checking when decoding. Apparently there are clients that generate
1617 overlong encoded strings. Why am I not surprised?
1618
f0917727
PH
1619PH/15 If the first argument of "${if match_address" was not empty, but did not
1620 contain an "@" character, Exim crashed. Now it writes a panic log message
1621 and treats the condition as false.
1622
096fee00
PH
1623PH/16 In autoreply, treat an empty string for "once" the same as unset.
1624
024bd3c2
PH
1625PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1626 extension "envelope-auth". The code is finished and in agreement with
1627 other implementations, but there is no documentation so far and in fact,
1628 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1629 not changing the active code.
1630
1631 Print executed "if" and "elsif" statements when debugging is used. This
1632 helps a great deal to understand what a filter does.
1633
1634 Document more things not specified clearly in RFC3028. I had all this
1635 sorted out, when out of a sudden new issues came to my mind. Oops."
1636
df199fec
PH
1637PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1638 (Bugzilla #53).
1639
d27f1df3
PH
1640PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1641 canonical form (as documented). However, after a host name lookup from
1642 the IP address, check_host() was doing a simple string comparison with
1643 addresses acquired from the DNS when checking that the found name did
1644 have the original IP as one of its addresses. Since any found IPv6
1645 addresses are likely to be in abbreviated form, the comparison could
1646 fail. Luckily, there already exists a function for doing the comparison
1647 by converting both addresses to binary, so now that is used instead of
1648 the text comparison.
1649
96776534
PH
1650PH/20 There was another similar case to PH/19, when a complete host name was
1651 given in a host list; looking up its IP address could give an abbreviated
1652 form, whereas the current host's name might or might not be abbreviated.
1653 The same fix has been applied.
1654
5de37277 1655
9a799bc0
PH
1656Exim version 4.54
1657-----------------
1658
1659PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1660 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1661 It now does.
1662
99a4b039
PH
1663PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1664 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1665
1666PH/03 Typo: missing ".o" in src/pcre/Makefile.
1667
4b233853
PH
1668PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1669 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1670 Also, for "Auto-Submitted", treat anything other than "no" as
1671 non-personal, in accordance with RFC 3834. (Previously it treated
1672 anything starting "auto-" as non-personal.)
1673
8857ccfd
PH
1674TF/01 The control=submission/name=... option had a problem with syntax
1675 errors if the name included a slash character. The /name= option
1676 now slurps the rest of the string, so it can include any characters
1677 but it must come last in the list of options (after /sender_retain
1678 or /domain=).
1679
433a2980
PH
1680PH/05 Some modifications to the interface to the fake nameserver for the new
1681 testing suite.
1682
3e46c1aa 1683
9a799bc0 1684
e3a311ba
TK
1685Exim version 4.53
1686-----------------
1687
1688TK/01 Added the "success_on_redirect" address verification option. See
1689 NewStuff for rationale and an example.
1690
13b685f9
PH
1691PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1692
395ff96d
PH
1693PH/02 Patch to exigrep to allow it to work on syslog lines.
1694
5b68f6e4
PH
1695PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1696 fread() to skip over the body file's header line, because in Cygwin the
1697 header line is locked and is inaccessible.
1698
1ab52c69
PH
1699PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1700 co-exist for some time) to make it clear that it is the Exim ID that is
1701 referenced, not the Message-ID: header line.
1702
b07e6aa3
PH
1703PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1704 string_format() function, because snprintf() does not exist on all
1705 operating systems.
1706
254e032f
PH
1707PH/06 The use of forbid_filter_existstest now also locks out the use of the
1708 ${stat: expansion item.
1709
3af76a81
PH
1710PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1711 protocol synchronization error", to keep the pedants happy.
1712
2548ba04
PH
1713PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1714 well as for IRIX systems, when gcc is being used. See the host.c source
1715 file for comments.
1716
b6c6011d
PH
1717PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1718
cf39cf57
PH
1719PH/10 Named domain lists were not working if used in a queue_smtp_domains
1720 setting.
1721
f1513293
PH
1722PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1723 transport and to the smtp transport in LMTP mode.
1724
727549a4
PH
1725TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1726
af46795e
PH
1727PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1728 run a filter in a subprocess. This could lead to confusion in subsequent
1729 lookups in the parent process. There should also be a search_tidyup() at
1730 the end of the subprocess.
1731
d7b47fd0
PH
1732PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1733 only if the host matched helo_try_verify_hosts, which caused the
1734 verification to occur when the EHLO/HELO command was issued. The ACL just
1735 tested the remembered result. Now, if a previous verification attempt has
1736 not happened, "verify = helo" does it there and then.
1737
ee744174
JJ
1738JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1739
b582ab87
PH
1740TK/03 Fix log output including CR from clamd.
1741
41a13e0a
PH
1742PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1743 exist provoked a memory error which could cause a segfault.
1744
f625cc5a
PH
1745PH/15 Installed PCRE 6.2
1746
1747PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1748
21f7af35
PH
1749PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1750 of the problem. Specifically, suggested +O2 rather than +O1 for the
1751 HP-UX compiler.
1752
31480e42
PH
1753PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1754
2d280592
PH
1755PH/20 If a delivery was routed to a non-standard port by means of an SRV
1756 record, the port was not correctly logged when the outgoing_port log
1757 selector was set (it logged the transort's default port).
1758
7cd1141b
PH
1759PH/21 Added support for host-specific ports to manualroute, queryprogram,
1760 fallback_hosts, and "hosts" in the smtp transport.
1761
1762PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1763 host errors such as "Connection refused".
1764
750af86e
PH
1765PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1766 authentication with radiusclient 0.4.9:
1767
1768 - Error returned from rc_read_config was caught wrongly
1769 - Username/password not passed on to radius server due to wrong length.
1770
1771 The presumption is that some radiusclient API changes for 4.51/PH/17
1772 were not taken care of correctly. The code is still untested by me (my
1773 Linux distribution still has 0.3.2 of radiusclient), but it was
1774 contributed by a Radius user.
1775
1776PH/24 When doing a callout, the value of $domain wasn't set correctly when
1777 expanding the "port" option of the smtp transport.
1778
4304270b
TK
1779TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1780 while reading a MIME header. Thanks to Tom Hughes for a patch.
1781
750af86e
PH
1782PH/24 Include config.h inside local_scan.h so that configuration settings are
1783 available.
1784
64ffc24f
PH
1785PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1786 that in an ACL for RCPT (for example), you can examine exactly what was
1787 received.
1788
5dd9625b
PH
1789PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1790 commands, but it was not correctly comparing the address with the actual
1791 client host address. Thus, it would show the EHLO address in Received:
1792 header lines when this was not necessary.
1793
5591031b
PH
1794PH/27 Added the % operator to ${eval:}.
1795
ba18e66a
PH
1796PH/28 Exim tries to create and chdir to its spool directory when it starts;
1797 it should be ignoring failures (because with -C, for example, it has lost
1798 privilege). It wasn't ignoring creation failures other than "already
1799 exists".
1800
9cec981f
PH
1801PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1802 -bV or -d is used.
1803
aa2b5c79
PH
1804PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1805 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1806 too many continuations, the temporary file was not being removed, and the
1807 return code was incorrect.
aa2b5c79 1808
48a53b7f
PH
1809PH/31 Missing "BOOL" in function definition in filtertest.c.
1810
1c59d63b
PH
1811PH/32 Applied Sieve patches from the maintainer.
1812
671012da
TK
1813TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1814
1509d3a8
PH
1815PH/33 Added "verify = not_blind".
1816
1817PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1818 Local/Makefile (with some defaults set). These are used in built scripts
1819 such as exicyclog, but they have never been used in the exim_install
1820 script (though there are many overriding facilities there). I have
1821 arranged that the exim_install script now takes note of these two
1822 settings.
1823
1824PH/35 Installed configuration files for Dragonfly.
1825
2fe1a124
PH
1826PH/36 When a locally submitted message by a trusted user did not contain a
1827 From: header, and the sender address was obtained from -f or from an SMTP
1828 MAIL command, and the trusted user did not use -F to supply a sender
1829 name, $originator_name was incorrectly used when constructing a From:
1830 header. Furthermore, $originator_name was used for submission mode
1831 messages from external hosts without From: headers in a similar way,
1832 which is clearly wrong.
1833
8800895a
PH
1834PH/37 Added control=suppress_local_fixups.
1835
ccfdb010
PH
1836PH/38 When log_selector = +received_sender was set, and the addition of the
1837 sender made the log line's construction buffer exactly full, or one byte
1838 less than full, an overflow happened when the terminating "\n" was
1839 subsequently added.
1840
1130bfb0
PH
1841PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1842 when the result of a list match is failure because a DNS lookup failed.
1843
ebcb507f
PH
1844PH/40 RM_COMMAND is now used in the building process.
1845
c35e155c
PH
1846PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1847 the "build-* directories that it finds.
1848
95d1f782
PH
1849PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1850 address in a domain literal was a prefix of an interface address.
1851
fd6de02e
PH
1852PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1853 when verifying a sender address, unless rewrite_headers is false.
1854
58de37c5
PH
1855PH/44 Wrote a long comment about why errors_to addresses are verified as
1856 recipients, not senders.
1857
261cf466
TF
1858TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1859 the ratelimit ACL was added.
1860
3ee512ff
PH
1861PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1862
e08c430f
PH
1863PH/46 Added extra information about PostgreSQL errors to the error string.
1864
bef5a11f
PH
1865PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1866 avoiding the need to install special zones in a real server. This is
1867 backwards compatible; if it can't find the fake resolver, it drops back.
1868 Thus, both old and new test suites can be run.
1869
7546de58
TF
1870TF/02 Added util/ratelimit.pl
1871
e5d5a95f
TF
1872TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1873 clock is set back in time.
1874
2e88a017
TF
1875TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1876 Candler <B.Candler@pobox.com>.
1877
a5f65aa4
TF
1878TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1879 OK for addresses that are the result of redirections.
1880
e7726cbf
PH
1881PH/48 A number of further additions for the benefit of the new test suite,
1882 including a fake gethostbyname() that interfaces to the fake DNS resolver
1883 (see PH/47 above).
1884
a7fdad5b
TF
1885TF/06 The fix for widen_domains has also been applied to qualify_single and
1886 search_parents which are the other dnslookup options that can cause
1887 header rewrites.
1888
6af56900
PH
1889PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1890 type ("H").
1891
0925ede6
PH
1892PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1893
66afa403
TF
1894TF/07 Exim produced the error message "an SRV record indicated no SMTP
1895 service" if it encountered an MX record with an empty target hostname.
1896 The message is now "an MX or SRV record indicated no SMTP service".
1897
0154e85a
TF
1898TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1899 if the DNS of the sending site is misconfigured. This is quite a
1900 common situation. This change restores the behaviour of treating a
1901 helo verification defer as a failure.
1902
16f12c76
PH
1903PH/51 If self=fail was set on a router, the bounce message did not include the
1904 actual error message.
1905
bbe902f0 1906
e5a9dba6
PH
1907Exim version 4.52
1908-----------------
1909
1910TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1911
22c3b60b
PH
1912PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1913 command itself ended in error, the underlying message about the transport
1914 filter timeout was being overwritten with the pipe command error. Now the
1915 underlying error message should be appended to the second error message.
1916
06a9b4b5
PH
1917TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1918
c1ac6996
PH
1919PH/02 Reduce the amount of output that "make" produces by default. Full output
1920 can still be requested.
1921
9c7a242c
PH
1922PH/03 The warning log line about a condition test deferring for a "warn" verb
1923 was being output only once per connection, rather than after each
1924 occurrence (because it was using the same function as for successful
1925 "warn" verbs). This seems wrong, so I have changed it.
1926
87ba3f5f
PH
1927TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1928 it should not have, which might have caused a crash in the right
1929 circumstances, but probably never did.
1930
1931PH/04 Installed a modified version of Tony Finch's patch to make submission
1932 mode fix the return path as well as the Sender: header line, and to
1933 add a /name= option so that you can make the user's friendly name appear
1934 in the header line.
1935
29aba418
TF
1936TF/03 Added the control = fakedefer ACL modifier.
1937
fe0dab11
TF
1938TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1939 Mark Lowes for thorough testing.
870f6ba8 1940
11d337a4
TK
1941TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1942
1943TK/03 Merged latest SRS patch from Miles Wilton.
1944
415c8f3b
PH
1945PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1946 with the definition in sysexits.h (which is #included earlier).
1947 Fortunately, Exim does not actually use EX_OK. The code used to try to
1948 preserve the sysexits.h value, by assumimg that macro definitions were
1949 scanned for macro replacements. I have been disabused of this notion,
1950 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1951
958541e9
PH
1952PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1953 in the smtp transport. When a block could not be written in a single
1954 write() function, the timeout was being re-applied to each part-write.
1955 This seems wrong - if the receiver was accepting one byte at a time it
1956 would take for ever. The timeout is now adjusted when this happens. It
1957 doesn't have to be particularly precise.
1958
c206415f
TK
1959TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1960 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1961
2a4be8f9
PH
1962PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1963 without a domain if the check to <postmaster@domain> fails.
1964
1cba11c5
SC
1965SC/01 Eximstats: added -xls and the ability to specify output files
1966 (patch written by Frank Heydlauf).
1967
1968SC/02 Eximstats: use FileHandles for outputing results.
1969
1970SC/03 Eximstats: allow any combination of xls, txt, and html output.
1971
1972SC/04 Eximstats: fixed display of large numbers with -nvr option
1973
1974SC/05 Eximstats: fixed merging of reports with empty tables.
1975
1976SC/06 Eximstats: added the -include_original_destination flag
1977
1978SC/07 Eximstats: removed tabs and trailing whitespace.
1979
1005d00e
TK
1980TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1981
1982TK/06 MBOX spool code: Add real "From " MBOX separator line
1983 so the .eml file is really in mbox format (even though
1984 most programs do not really care). Patch from Alex Miller.
1985
1986TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1987 The latter is generated from $received_to and is only set if the
1988 message has one envelope recipient. SA can use these headers,
1989 obviously out-of-the-box. Patch from Alex Miller.
1990
9b4768fa
PH
1991PH/08 The ${def test on a variable was returning false if the variable's
1992 value was "0", contrary to what the specification has always said!
1993 The result should be true unless the variable is empty.
1994
1995PH/09 The syntax error of a character other than { following "${if
1996 def:variable_name" (after optional whitespace) was not being diagnosed.
1997 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1998 accidental colon was present, for example, could give incorrect results.
1999
0d7eb84a
PH
2000PH/10 Tidied the code in a number of places where the st_size field of a stat()
2001 result is used (not including appendfile, where other changes are about
2002 to be made).
2003
2004PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2005 This involved changing a lot of size variables from int to off_t. It
2006 should work with maildirs and everything.
2007
40727bee
TK
2008TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2009 spamd dying while we are connected to it.
2010
554d2369
TF
2011TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2012 <jgh@wizmail.org>
2013
1f922db1
PH
2014PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2015 function for BDB 4.3.
2016
ef213c3b
PH
2017PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2018
8ac170f3
PH
2019PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2020 the sources for PCRE have been re-arranged and more files are now
2021 involved.
2022
b1c749bb
PH
2023PH/15 The code I had for printing potentially long long variables in PH/11
2024 above was not the best (it lost precision). The length of off_t variables
2025 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2026 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2027 to be "long long int" or "long int". This is needed for the internal
2028 formatting function string_vformat().
b1c749bb 2029
4aac9b49
PH
2030PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2031 the configuration file to be ":syslog", then the script "guesses" where
2032 the logs files are, rather than using the compiled in default. In our
2033 case the guess is not the same as the compiled default, so the script
2034 suddenly stopped working when I started to use syslog. The patch checks
2035 to see if log_file_path is "". If so, it attempts to read it from exim
2036 with no configuration file to get the compiled in version, before it
2037 falls back to the previous guessing code."
2038
294520c8
TK
2039TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2040 implementing BATV in an Exim configuration. See NewStuff for the gory
2041 details.
2042
5bd022fe
PH
2043PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2044 Makefile that are specific to HP-UX.
2045
90e9ce59
PH
2046PH/18 If the "use_postmaster" option was set for a recipient callout together
2047 with the "random" option, the postmaster address was used as the MAIL
2048 FROM address for the random test, but not for the subsequent recipient
2049 test. It is now used for both.
2050
5ea81592
PH
2051PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2052 patch removes a few documentation additions to RFC 3028, because the
2053 latest draft now contains them. It adds the new en;ascii-case comparator
2054 and a new error check for 8bit text in MIME parts. Comparator and
2055 require names are now matched exactly. I enabled the subaddress
2056 extension, but it is not well tested yet (read: it works for me)."
2057
c6c2dc1d
PH
2058PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2059 rework some of the code of TK/09 above to avoid the hardwired use of
2060 "%lld" and "long long". Replaced the call to snprintf() with a call to
2061 string_vformat().
2062
fffffe4c
PH
2063PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2064 records point to non-existent hosts", "retry timeout exceeded", and
2065 "retry time not reached for any host after a long failure period".
ca02eafb 2066
9a26b6b2
PH
2067PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2068 experimental DomainKeys support:
2069
2070 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2071 (2) On an error such as an illegally used "control", the wrong name for
2072 the control was given.
2073
2074 These problems did NOT occur unless DomainKeys support was compiled.
2075
4aee0225
PH
2076PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2077
32d668a5
PH
2078PH/24 Added ${if match_ip condition.
2079
8187c3f3
PH
2080PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2081 databases so that it will be absolutely obvious if a crash occurs in the
2082 DB library. This is a regular occurrence (often caused by mis-matched
2083 db.h files).
2084
ff790e47 2085PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2086 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2087 picked up on a user's system that detects such things. There doesn't seem
2088 to be a gcc warning option for this - only an attribute that has to be
2089 put on the function's prototype. It seems that in Fedora Core 4 they have
2090 set this on a number of new functions. No doubt there will be more in due
2091 course.
ff790e47 2092
5417f6d1
PH
2093PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2094 specify a transport. However, if an address that was verified by such a
2095 router was the subject of a callout, Exim crashed because it tried to
2096 read the rcpt_include_affixes from the non-existent transport. Now it
2097 just assumes that the setting of that option is false. This bug was
2098 introduced by 4.51/PH/31.
2099
59cf8544
PH
2100PH/28 Changed -d+all to exclude +memory, because that information is very
2101 rarely of interest, but it makes the output a lot bigger. People tend to
2102 do -d+all out of habit.
2103
e7ad8a65
PH
2104PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2105 code in os-type was giving problems when libc.so lives in lib64, like on
2106 x86_64 Fedora Core.
2107
ade42478
PH
2108PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2109 aren't the modern standard, and it seems that some systems' include files
2110 don't always have them. Exim was already checking for some of the newer
2111 ones like T_AAAA, and defining it itself. I've added checks for all the
2112 record types that Exim uses.
2113
182ad5cf
PH
2114PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2115 not automatically generating a new one, as it is supposed to. This
2116 prevented TLS from working. If the file did exist, but contained invalid
2117 data, a new version was generated, as expected. It was only the case of a
2118 non-existent file that was broken.
2119
b0d9fc80
TK
2120TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2121 with a change in libdomainkeys > 0.64.
2122
2123TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2124 from DNS. If the selector record carries the flag, it now has
2125 precedence over the domain-wide flag.
2126
2127TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2128
47c7a64a
PH
2129PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2130 the use of a port name that isn't defined in /etc/services) occurred, the
2131 message was deferred as in a normal delivery, and thus remained on the
2132 spool, instead of being failed because of the mua_wrapper setting. This
2133 is now fixed, and I tidied up some of the mua_wrapper messages at the
2134 same time.
2135
a388bce4
SC
2136SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2137 the messages in a hash of arrays rather than using individual hashes.
2138 This is a bit cleaner and results in dramatic memory savings, albeit
2139 at a slight CPU cost.
2140
2141SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2142 as requested by Marc Sherman.
2143
2144SC/10 Eximstats: added histograms for user specified patterns as requested
2145 by Marc Sherman.
2146
0793e4ed
SC
2147SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2148
c58b88df
PH
2149PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2150 fopen() in the content-scanning modules that did not already have it.
2151
e7ad8a65 2152
7982096b
PH
2153Exim version 4.51
2154-----------------
2155
1a46a8c5
PH
2156TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2157 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2158
2f079f46 2159TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2160
2161TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2162
2163PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2164 to test Sieve filters that use "vacation".
2165
2166PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2167 that changes the way the GnuTLS parameters are stored in the cache file.
2168 The new format can be generated externally. For backward compatibility,
2169 if the data in the cache doesn't make sense, Exim assumes it has read an
2170 old-format file, and it generates new data and writes a new file. This
2171 means that you can't go back to an older release without removing the
2172 file.
2173
2174PH/03 A redirect router that has both "unseen" and "one_time" set does not
2175 work if there are any delivery delays because "one_time" forces the
2176 parent to be marked "delivered", so its unseen clone is never tried
2177 again. For this reason, Exim now forbids the simultaneous setting of
2178 these two options.
2179
2180PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2181 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2182 entry if you want to know the details. The fix, however, neglected to
2183 consider the case when local delivery batching is involved. The test for
2184 "previously delivered" was not happening when checking to see if an
2185 address could be batched with a previous (undelivered) one; under
2186 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2187 address.
1a46a8c5
PH
2188
2189PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2190 in its include files, and this causes problems building Exim.
2191
2192PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2193 header_syntax) but Exim was just ignoring anything given after a slash.
2194 In particular, this caused confusion with an attempt to use "verify =
2195 reverse_host_lookup/defer_ok". An error is now given when options are
2196 supplied for verify items that do not have them. (Maybe reverse_host_
2197 lookup should have a defer_ok option, but that's a different point.)
2198
2199PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2200 defined by RFC 821) to 2048, because there were problems with some AUTH
2201 commands, and RFC 1869 says the size should be increased for extended
2202 SMTP commands that take arguments.
2203
2204PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2205 Finch).
2206
2207PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2208 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2209
49c2d5ea
PH
2210PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2211 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2212 whatever). Otherwise the password may appear in the log. Following change
2213 PH/42 below, there is no longer a chance of it appearing in a bounce
2214 message.
49c2d5ea 2215
bf759a8b
PH
2216PH/11 Installed exipick version 20050225.0 from John Jetmore.
2217
83364d30
PH
2218PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2219 of its addresses was ever tried. (Bugzilla bug #2.)
2220
7999bbd7
PH
2221PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2222 the result incorrectly in the debug output. (It correctly added a newline
2223 to what was transported.)
2224
7dbf77c9
PH
2225TF/01 Added $received_time.
2226
74e0617f
PH
2227PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2228 commented out examples of how to interface to a virus scanner and to
2229 SpamAssassin. Also added commented examples of av_scanner and
2230 spamd_address settings.
2231
2f079f46
PH
2232PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2233 and controls are allowed in which ACLs. There were a couple of minor
2234 errors. Some of the entries in the conditions table (which is a table of
2235 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2236 negation of where the condition IS allowed.
2237
8c841523
PH
2238PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2239
7766a4f0
PH
2240PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2241 header file does not have a version number, so I've had to invent a new
2242 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2243 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2244 radiusclient), but it was contributed by a Radius user.
2245
8b417f2c
PH
2246PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2247 files or directories, for OpenSSL.
2248
901f42cb
PH
2249PH/19 When an Exim process that is running as root has to create an Exim log
2250 file, it does so in a subprocess that runs as exim:exim so as to get the
2251 ownership right at creation (otherwise, other Exim processes might see
2252 the file with the wrong ownership). There was no test for failure of this
2253 fork() call, which would lead to the process getting stuck as it waited
2254 for a non-existent subprocess. Forks do occasionally fail when resources
2255 run out. I reviewed all the other calls to fork(); they all seem to check
2256 for failure.
2257
f9b9210e
PH
2258PH/20 When checking for unexpected SMTP input at connect time (before writing
2259 the banner), Exim was not dealing correctly with a non-positive return
2260 from the read() function. If the client had disconnected by this time,
2261 the result was a log entry for a synchronization error with an empty
2262 string after "input=" when read() returned zero. If read() returned -1
2263 (an event I could not check), uninitialized data bytes were printed.
2264 There were reports of junk text (parts of files, etc) appearing after
2265 "input=".
2266
54cdb463
PH
2267PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2268
cf00dad6
PH
2269PH/22 Added support for macro redefinition, and (re)definition in between
2270 driver and ACL definitions.
2271
acb1b346
PH
2272PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2273 forgetting to use the resulting value; it was using the unexpanded value.
2274
c5ddb310
PH
2275PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2276 hadn't been configured. The fix is from Juergen Kreileder, who
2277 understands it better than I do:
2278
2279 "Here's what I see happening with three configured cyrus_sasl
2280 authenticators configured (plain, login, cram-md5):
2281
2282 On startup auth_cyrus_sasl_init() gets called for each of these.
2283 This means three calls to sasl_listmech() without a specified mech_list.
2284 => SASL tests which mechs of all available mechs actually work
2285 => three warnings about OTP not working
2286 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2287
2288 With the patch, sasl_listmech() also gets called three times. But now
2289 SASL's mech_list option is set to the server_mech specified in the the
2290 authenticator. Or in other words, the answer from sasl_listmech()
2291 gets limited to just the mech you're testing for (which is different
2292 for each call.)
2293 => the return list contains just 'plain' or 'login', 'cram-md5' or
2294 nothing depending on the value of ob->server_mech.
2295
2296 I've just tested the patch: Authentication still works fine,
2297 unavailable mechs specified in the exim configuration are still
2298 caught, and the auth.log warnings about OTP are gone."
2299
31619da6
PH
2300PH/25 When debugging is enabled, the contents of the command line are added
2301 to the debugging output, even when log_selector=+arguments is not
2302 specified.
2303
bebaf0fc
PH
2304PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2305 answer is "GNU", and only if the return is "GNU/something" is the answer
2306 "Linux".
2307
475fe28a
PH
2308PH/27 $acl_verify_message is now set immediately after the failure of a
2309 verification in an ACL, and so is available in subsequent modifiers. In
2310 particular, the message can be preserved by coding like this:
2311
2312 warn !verify = sender
2313 set acl_m0 = $acl_verify_message
2314
2315 Previously, $acl_verify_message was set only while expanding "message"
2316 and "log_message" when a very denied access.
2317
7e8bec7a
PH
2318PH/28 Modified OS/os.c-Linux with
2319
2320 -#ifndef OS_LOAD_AVERAGE
2321 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2322
2323 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2324 nomenclature these days.)
2325
e4a89c47
PH
2326PH/29 Installed patch from the Sieve maintainer that adds the options
2327 sieve_useraddress and sieve_subaddress to the redirect router.
2328
5ca2a9a1
PH
2329PH/30 In these circumstances:
2330 . Two addresses routed to the same list of hosts;
2331 . First host does not offer TLS;
2332 . First host accepts first address;
2333 . First host gives temporary error to second address;
2334 . Second host offers TLS and a TLS session is established;
2335 . Second host accepts second address.
2336 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2337 and peerdn, if requested) that were in fact used only for the second
2338 address.
7e8bec7a 2339
c688b954
PH
2340PH/31 When doing a callout as part of verifying an address, Exim was not paying
2341 attention to any local part prefix or suffix that was matched by the
2342 router that accepted the address. It now behaves in the same way as it
2343 does for delivery: the affixes are removed from the local part unless
2344 rcpt_include_affixes is set on the transport.
2345
fed77020
PH
2346PH/32 Add the sender address, as F=<...>, to the log line when logging a
2347 timeout during the DATA phase of an incoming message.
2348
7fe1560f
PH
2349PH/33 Sieve envelope tests were broken for match types other than :is. I have
2350 applied a patch sanctioned by the Sieve maintainer.
c688b954 2351
ebb6e6d5
PH
2352PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2353 the uid or gid is negative. A case of a negative gid caused this to be
2354 noticed. The fix allows for either to be negative.
2355
9c4e8f60
PH
2356PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2357 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2358 overlooked.
2359
2360PH/36 The change PH/12 above was broken. Fixed it.
2361
d7174846
PH
2362PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2363 the grounds that routing the same address twice would always produce the
2364 same answer. This might have been true once, but it is certainly no
2365 longer true now. Routing a child address may depend on the previous
2366 routing that produced that child. Some complicated redirection strategies
2367 went wrong when messages had multiple recipients, and made Exim's
2368 behaviour dependent on the order in which the addresses were given.
2369
2370 I have moved the duplicate checking until after the routing is complete.
2371 Exim scans the addresses that are assigned to local and remote
2372 transports, and removes any duplicates. This means that more work will be
2373 done, as duplicates will always all be routed, but duplicates are
2374 presumably rare, so I don't expect this is of any significance.
2375
2376 For deliveries to pipes, files, and autoreplies, the duplicate checking
2377 still happens during the routing process, since they are not going to be
2378 routed further.
2379
cfe75fc3
PH
2380PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2381 It corrects a timeout issue with spamd. This is Ian's comment: "The
2382 background is that sometimes spamd either never reads data from a
2383 connection it has accepted, or it never writes response data. The exiscan
2384 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2385 blindly assumes that writes won't block so it may never time out."
2386
be22d70e
PH
2387PH/39 Allow G after quota size as well as K and M.
2388
0612b098
PH
2389PH/40 The value set for $authenticated_id in an authenticator may not contain
2390 binary zeroes or newlines because the value is written to log lines and
2391 to spool files. There was no check on this. Now the value is run through
2392 the string_printing() function so that such characters are converted to
2393 printable escape sequences.
2394
2e0c1448
PH
2395PH/41 $message_linecount is a new variable that contains the total number of
2396 lines in the message. Compare $body_linecount, which is the count for the
2397 body only.
2398
447d236c
PH
2399PH/42 Exim no longer gives details of delivery errors for specific addresses in
2400 bounce and delay warning messages, except in certain special cases, which
2401 are as follows:
2402
2403 (a) An SMTP error message from a remote host;
2404 (b) A message specified in a :fail: redirection;
2405 (c) A message specified in a "fail" command in a system filter;
2406 (d) A message specified in a FAIL return from the queryprogram router;
2407 (e) A message specified by the cannot_route_message router option.
2408
2409 In these cases only, Exim does include the error details in bounce and
2410 warning messages. There are also a few cases where bland messages such
2411 as "unrouteable address" or "local delivery error" are given.
2412
d20976dc
PH
2413PH/43 $value is now also set for the "else" part of a ${run expansion.
2414
f656d135
PH
2415PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2416 being worked on, but at least Exim now implements the latest version to
2417 play with."
2418
2e2a30b4
PH
2419PH/45 In a pipe transport, although a timeout while waiting for the pipe
2420 process to complete was treated as a delivery failure, a timeout while
2421 writing the message to the pipe was logged, but erroneously treated as a
2422 successful delivery. Such timeouts include transport filter timeouts. For
2423 consistency with the overall process timeout, these timeouts are now
2424 treated as errors, giving rise to delivery failures by default. However,
2425 there is now a new Boolean option for the pipe transport called
2426 timeout_defer, which, if set TRUE, converts the failures into defers for
2427 both kinds of timeout. A transport filter timeout is now identified in
2428 the log output.
2429
9176e9f0
PH
2430PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2431 systems where "make" and "gmake" are different, calling "gmake" at top
2432 level broke things. I've arranged for the value of $(MAKE) to be passed
2433 from the Makefile to this script so that it can call the same version of
2434 "make".
2435
7982096b 2436
bbe902f0
PH
2437A note about Exim versions 4.44 and 4.50
2438----------------------------------------
2439
2440Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2441changes of various kinds. As a consequence, a big documentation update was
2442needed. This delayed the release for rather longer than seemed good, especially
2443in the light of a couple of (minor) security issues. Therefore, the changes
2444that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2445release. So 4.44 and 4.50 are in effect two different branches that both start
2446from 4.43.
2447
2448I have left the 4.50 change log unchanged; it contains all the changes since
24494.43. The change log for 4.44 is below; many of its items are identical to
2450those for 4.50. This seems to be the most sensible way to preserve the
2451historical information.
2452
2453
f7b63901 2454Exim version 4.50
495ae4b0
PH
2455-----------------
2456
5fe762f6
PH
2457 1. Minor wording change to the doc/README.SIEVE file.
2458
139059f6 2459 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2460 computation of the current number of files was incorrect.
495ae4b0 2461
7086e875
PH
2462 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2463 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2464 place.
2465
35af9f61
PH
2466 4. Give more explanation in the error message when the command for a transport
2467 filter fails to execute.
2468
b668c215
PH
2469 5. There are several places where Exim runs a non-Exim command in a
2470 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2471 was being done only for the command run by the queryprogram router. It is
2472 now done for all such subprocesses. The other cases are: ${run, transport
2473 filters, and the commands run by the lmtp and pipe transports.
2474
a494b1e1
PH
2475 6. Added CONFIGURE_GROUP build-time option.
2476
2477 7. Some older OS have a limit of 256 on the maximum number of file
2478 descriptors. Exim was using setrlimit() to set 1000 as a large value
2479 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2480 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2481
c5fcb476
PH
2482 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2483 was an oversight, and furthermore, ever since the addition of extra
2484 controls (e.g. 4.43/32), the checks on when to allow different forms of
2485 "control" were broken. There should now be diagnostics for all cases when a
2486 control that does not make sense is encountered.
2487
69358f02
PH
2488 9. Added the /retain_sender option to "control=submission".
2489
5be20824
PH
249010. $recipients is now available in the predata ACL (oversight).
2491
eb2c0248
PH
249211. Tidy the search cache before the fork to do a delivery from a message
2493 received from the command line. Otherwise the child will trigger a lookup
2494 failure and thereby defer the delivery if it tries to use (for example) a
2495 cached ldap connection that the parent has called unbind on.
2496
2a3eea10
PH
249712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2498 of $address_data from the recipient verification was clobbered by the
2499 sender verification.
2500
250113. The value of address_data from a sender verification is now available in
2502 $sender_address_data in subsequent conditions in the ACL statement.
2503
23c7ff99
PH
250414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2505
4deaf07d
PH
250615. Added a new option "connect=<time>" to callout options, to set a different
2507 connection timeout.
2508
926e1192
PH
250916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2510 was its contents. (It was OK if the option was not defined at all.)
2511
650edc6f
PH
251217. A "Completed" log line is now written for messages that are removed from
2513 the spool by the -Mrm option.
2514
2c7db3f5
PH
251518. New variables $sender_verify_failure and $recipient_verify_failure contain
2516 information about exactly what failed.
2517
3d235903
PH
251819. Added -dd to debug only the daemon process.
2519
7c7ad977
PH
252020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2521 handles timeouts, both on the server side and network timeouts. Renamed the
2522 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2523
981756db
PH
252421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2525 It is now set to "smtps".
2526
d4eb88df
PH
252722. $host_address is now set to the target address during the checking of
2528 ignore_target_hosts.
2529
253023. When checking ignore_target_hosts for an ipliteral router, no host name was
2531 being passed; this would have caused $sender_host_name to have been used if
2532 matching the list had actually called for a host name (not very likely,
2533 since this list is usually IP addresses). A host name is now passed as
2534 "[x.x.x.x]".
2535
7d468ab8
PH
253624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2537 code that specifies a non-restarting handler (typically sigaction() in
2538 modern systems) in an attempt to fix a rare and obscure crash bug.
2539
254025. Narrowed the window for a race in the daemon that could cause it to ignore
2541 SIGCHLD signals. This is not a major problem, because they are used only to
2542 wake it up if nothing else does.
2543
62c0818f
PH
254426. A malformed maildirsize file could cause Exim to calculate negative values
2545 for the mailbox size or file count. Odd effects could occur as a result.
2546 The maildirsize information is now recalculated if the size or filecount
2547 end up negative.
2548
26034054
PH
254927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2550 support for a long time. Removed HAVE_SYS_VFS_H.
2551
af66f652
PH
255228. Installed the latest version of exipick from John Jetmore.
2553
90af77f4
PH
255429. In an address list, if the pattern was not a regular expression, an empty
2555 subject address (from a bounce message) matched only if the pattern was an
2556 empty string. Non-empty patterns were not even tested. This was the wrong
2557 because it is perfectly reasonable to use an empty address as part of a
2558 database query. An empty address is now tested by patterns that are
2559 lookups. However, all the other forms of pattern expect the subject to
2560 contain a local part and a domain, and therefore, for them, an empty
2561 address still always fails if the pattern is not itself empty.
2562
d8ef3577
PH
256330. Exim went into a mad DNS loop when attempting to do a callout where the
2564 host was specified on an smtp transport, and looking it up yielded more
2565 than one IP address.
2566
5cb8cbc6
PH
256731. Re-factored the code for checking spool and log partition space into a
2568 function that finds that data and another that does the check. The former
2569 is then used to implement four new variables: $spool_space, $log_space,
2570 $spool_inodes, and $log_inodes.
2571
14702f5b
PH
257232. The RFC2047 encoding function was originally intended for short strings
2573 such as real names; it was not keeping to the 75-character limit for
2574 encoded words that the RFC imposes. It now respects the limit, and
2575 generates multiple encoded words if necessary. To be on the safe side, I
2576 have increased the buffer size for the ${rfc2047: expansion operator from
2577 1024 to 2048 bytes.
2578
063b1e99
PH
257933. It is now permitted to omit both strings after an "if" condition; if the
2580 condition is true, the result is "true". As before, when the second string
2581 is omitted, a false condition yields an empty string. This makes it less
2582 cumbersome to write custom ACL and router conditions.
2583
652e1b65
PH
258434. Failure to deliver a bounce message always caused it to be frozen, even if
2585 there was an errors_to setting on the router. The errors_to setting is now
2586 respected.
2587
6f0c9a4f
PH
258835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2589 canonical form (fully expanded) before being placed in
2590 $sender_host_address.
2591
33397d19
PH
259236. The table in the code that translates DNS record types into text (T_A to
2593 "A" for instance) was missing entries for NS and CNAME. It is just possible
2594 that this could have caused confusion if both these types were looked up
2595 for the same domain, because the text type is used as part of Exim's
2596 per-process caching. But the chance of anyone hitting this buglet seems
2597 very small.
2598
7bb56e1f
PH
259937. The dnsdb lookup has been extended in a number of ways.
2600
2601 (1) There is a new type, "zns", which walks up the domain tree until it
2602 finds some nameserver records. It should be used with care.
2603
ea3bc19b
PH
2604 (2) There is a new type, "mxh", which is like "mx" except that it returns
2605 just the host names, not the priorities.
2606
2607 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2608 looked up. The behaviour when one of the lookups defers can be
2609 controlled by a keyword.
7bb56e1f 2610
ea3bc19b 2611 (4) It is now possible to specify the separator character for use when
7bb56e1f 2612 multiple records are returned.
33397d19 2613
0bcb2a0e
PH
261438. The dnslists ACL condition has been extended: it is now possible to supply
2615 a list of IP addresses and/or domains to be looked up in a particular DNS
2616 domain.
2617
2ac0e484
PH
261839. Added log_selector=+queue_time_overall.
2619
4e1fde53
PH
262040. When running the queue in the test harness, wait just a tad after forking a
2621 delivery process, to get repeatability of debugging output.
2622
de365ded
PH
262341. Include certificate and key file names in error message when GnuTLS fails
2624 to set them up, because the GnuTLS error message doesn't include the name
2625 of the failing file when there is a problem reading it.
2626
f05da2e8
PH
262742. Allow both -bf and -bF in the same test run.
2628
d6453af2
PH
262943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2630
f7b63901
PH
263144. The "Exiscan patch" is now merged into the mainline Exim source.
2632
263345. Sometimes the final signoff response after QUIT could fail to get
2634 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2635 < 0 before doing a fflush(). This bug looks as though it goes back to the
2636 introduction of TLS in release 3.20, but "sometimes" must have been rare
2637 because the tests only now provoked it.
2638
a444213a
PH
263946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2640 (this can affect the format of dates).
2641
0ec020ea
PH
264247. exim_tidydb, when checking for the continued existence of a message for
2643 which it has found a message-specific retry record, was not finding
2644 messages that were in split spool directories. Consequently, it was
2645 deleting retry records that should have stayed in existence.
2646
b1206957
PH
264748. Steve fixed some bugs in eximstats.
2648
264949. The SPA authentication driver was not abandoning authentication and moving
2650 on to the next authenticator when an expansion was forced to fail,
2651 contradicting the general specification for all authenticators. Instead it
2652 was generating a temporary error. It now behaves as specified.
2653
26dd5a95
PH
265450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2655 (the order specifies the preference for clients). The order is now AES256,
2656 AES128, 3DES, ARCFOUR128.
2657
343b2385
PH
265851. Small patch to Sieve code - explicitly set From: when generating an
2659 autoreply.
2660
1c5466b9
PH
266152. Exim crashed if a remote delivery caused a very long error message to be
2662 recorded - for instance if somebody sent an entire SpamAssassin report back
2663 as a large number of 550 error lines. This bug was coincidentally fixed by
2664 increasing the size of one of Exim's internal buffers (big_buffer) that
2665 happened as part of the Exiscan merge. However, to be on the safe side, I
2666 have made the code more robust (and fixed the comments that describe what
2667 is going on).
2668
55ee9ee3
PH
266953. Now that there can be additional text after "Completed" in log lines (if
2670 the queue_time_overall log selector is set), a one-byte patch to exigrep
2671 was needed to allow it to recognize "Completed" as not the last thing in
2672 the line.
2673
d38f8232
PH
267454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2675 patch that reportedly fixes this has been added. I am not expert enough to
2676 create a test for it. This is what the patch creator wrote:
2677
2678 "I found a little strange behaviour of ldap code when working with
2679 Windows 2003 AD Domain, where users was placed in more than one
2680 Organization Units. When I tried to give exim partial DN, the exit code
2681 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2682 But simultaneously result of request was absolutely normal ldap result,
2683 so I produce this patch..."
2684
3295e65b
PH
2685 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2686 REFERENCE, so I have modified the code to exclude the patch when that macro
2687 is not defined.
2688
7102e136
PH
268955. Some experimental protocols are using DNS PTR records for new purposes. The
2690 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2691 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2692 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2693 CAN-2005-0021
7102e136 2694
3ca0ba97
PH
269556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2696
c2bcbe20
PH
269757. Double the size of the debug message buffer (to 2048) so that more of very
2698 long debug lines gets shown.
2699
18ce445d
PH
270058. The exicyclog utility now does better if the number of log files to keep
2701 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2702
1f5b4c3d
PH
270359. Two changes related to the smtp_active_hostname option:
2704
2705 (1) $smtp_active_hostname is now available as a variable.
2706 (2) The default for smtp_banner uses $smtp_active_hostname instead
2707 of $primary_hostname.
2708
b975ba52
PH
270960. The host_aton() function is supposed to be passed a string that is known
2710 to be a valid IP address. However, in the case of IPv6 addresses, it was
2711 not checking this. This is a hostage to fortune. Exim now panics and dies
2712 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2713 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2714 components; fortuitously, this particular loophole had already been fixed
2715 by change 4.50/55 above.
2716
2717 If there are any other similar loopholes, the new check in host_aton()
2718 itself should stop them being exploited. The report I received stated that
2719 data on the command line could provoke the exploit when Exim was running as
2720 exim, but did not say which command line option was involved. All I could
2721 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2722 running as the user.
ea3a6f44 2723 CAN-2005-0021
85b87bc2
PH
2724
272561. There was a buffer overflow vulnerability in the SPA authentication code
2726 (which came originally from the Samba project). I have added a test to the
2727 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2728 CAN-2005-0022
b975ba52 2729
17ffcae7
PH
273062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2731 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2732
d95f9fdb
PH
273363. The daemon start-up calls getloadavg() while still root for those OS that
2734 need the first call to be done as root, but it missed one case: when
2735 deliver_queue_load_max is set with deliver_drop_privilege. This is
2736 necessary for the benefit of the queue runner, because there is no re-exec
2737 when deliver_drop_privilege is set.
2738
86b8287f
PH
273964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2740 This has been fixed.
2741
60dc5e56
PH
274265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2743 was in use, was not putting the data itself into the right store pool;
2744 consequently, it could be overwritten for a subsequent message in the same
2745 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2746 the caching.)
2747
533244af
PH
274866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2749
a5a28604
PH
275067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2751 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2752 the function were treating the return as a boolean value, which happened to
2753 work because 0=false and not-0=true, but is not correct code.
2754
7e634d24
PH
275568. The host_aton() function was not handling scoped IPv6 addresses (those
2756 with, for example, "%eth0" on the end) correctly.
2757
3e11c26b
PH
275869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2759 negated items (that is, ~something) in unsigned ints. Some compilers
2760 apparently mutter when there is no cast.
2761
6729cf78
PH
276270. If an address verification called from an ACL failed, and did not produce a
2763 user-specific message (i.e. there was only a "system" message), nothing was
2764 put in $acl_verify_message. In this situation, it now puts the system
2765 message there.
2766
00f00ca5
PH
276771. Change 4.23/11 added synchronization checking at the start of an SMTP
2768 session; change 4.31/43 added the unwanted input to the log line - except
2769 that it did not do this in the start of session case. It now does.
2770
c9bdd01c
PH
277172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2772 This is wrong and can cause the other end to generate a synchronization
2773 error if it is another Exim or anything else that does the synchronization
2774 check. A QUIT command is no longer sent after a timeout.
2775
d43194df
PH
277673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2777 during host lookups.
2778
fe5b5d0b
PH
277974. The defer_ok option of callout verification was not working if it was used
2780 when verifying addresses in header lines, that is, for this case:
2781
2782 verify = header_sender/callout=defer_ok
2783
76a2d7ba
PH
278475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2785 those file descriptors could be used for SMTP connections. If anything
2786 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2787 could be sent to the SMTP client, causing chaos. The daemon now opens
2788 stdin, stdout, and stderr to /dev/null when it puts itself into the
2789 background.
2790
279176. Arrange for output from Perl's "warn" command to be written to Exim's main
2792 log by default. The user can override this with suitable Perl magic.
2793
04f7d5b9
PH
279477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2795 the log message when discard triggers, was not working for the DATA ACL or
2796 for the non-SMTP ACL.
2797
bc60667e
PH
279878. Error message wording change in sieve.c.
2799
bb6e88ff
PH
280079. If smtp_accept_max_per_host was set, the number of connections could be
2801 restricted to fewer than expected, because the daemon was trying to set up
2802 a new connection before checking whether the processes handling previous
2803 connections had finished. The check for completed processes is now done
2804 earlier. On busy systems, this bug wouldn't be noticed because something
2805 else would have woken the daemon, and it would have reaped the completed
2806 process earlier.
2807
1e70f85b
PH
280880. If a message was submitted locally by a user whose login name contained one
2809 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2810 It caused a spool format error. I have fixed the spool reading code. A
2811 related problem was that the "from" clause in the Received: line became
2812 illegal because of the space(s). It is now covered by ${quote_local_part.
2813
281481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2815 tables).
2816
4e01f9d6
PH
281782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2818
1ee1cef2
PH
281983. Patch from Sieve maintainer to fix unterminated string problem in
2820 "vacation" handling.
2821
6e2b4ccc
PH
282284. Some minor changes to the Linux configuration files to help with other
2823 OS variants using glibc.
2824
8e669ac1
PH
282585. One more patch for Sieve to update vacation handling to latest spec.
2826
495ae4b0 2827
bbe902f0
PH
2828----------------------------------------------------
2829See the note above about the 4.44 and 4.50 releases.
2830----------------------------------------------------
2831
2832
2833Exim version 4.44
2834-----------------
2835
2836 1. Change 4.43/35 introduced a bug that caused file counts to be
2837 incorrectly computed when quota_filecount was set in an appendfile
2838 transport
2839
2840 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2841 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2842 place.
2843
2844 3. Give more explanation in the error message when the command for a transport
2845 filter fails to execute.
2846
2847 4. There are several places where Exim runs a non-Exim command in a
2848 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2849 was being done only for the command run by the queryprogram router. It is
2850 now done for all such subprocesses. The other cases are: ${run, transport
2851 filters, and the commands run by the lmtp and pipe transports.
2852
2853 5. Some older OS have a limit of 256 on the maximum number of file
2854 descriptors. Exim was using setrlimit() to set 1000 as a large value
2855 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2856 systems. I've change it so that if it can't get 1000, it tries for 256.
2857
2858 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2859 was an oversight, and furthermore, ever since the addition of extra
2860 controls (e.g. 4.43/32), the checks on when to allow different forms of
2861 "control" were broken. There should now be diagnostics for all cases when a
2862 control that does not make sense is encountered.
2863
2864 7. $recipients is now available in the predata ACL (oversight).
2865
2866 8. Tidy the search cache before the fork to do a delivery from a message
2867 received from the command line. Otherwise the child will trigger a lookup
2868 failure and thereby defer the delivery if it tries to use (for example) a
2869 cached ldap connection that the parent has called unbind on.
2870
2871 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2872 of $address_data from the recipient verification was clobbered by the
2873 sender verification.
2874
287510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2876 was its contents. (It was OK if the option was not defined at all.)
2877
287811. A "Completed" log line is now written for messages that are removed from
2879 the spool by the -Mrm option.
2880
288112. $host_address is now set to the target address during the checking of
2882 ignore_target_hosts.
2883
288413. When checking ignore_target_hosts for an ipliteral router, no host name was
2885 being passed; this would have caused $sender_host_name to have been used if
2886 matching the list had actually called for a host name (not very likely,
2887 since this list is usually IP addresses). A host name is now passed as
2888 "[x.x.x.x]".
2889
289014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2891 code that specifies a non-restarting handler (typically sigaction() in
2892 modern systems) in an attempt to fix a rare and obscure crash bug.
2893
289415. Narrowed the window for a race in the daemon that could cause it to ignore
2895 SIGCHLD signals. This is not a major problem, because they are used only to
2896 wake it up if nothing else does.
2897
289816. A malformed maildirsize file could cause Exim to calculate negative values
2899 for the mailbox size or file count. Odd effects could occur as a result.
2900 The maildirsize information is now recalculated if the size or filecount
2901 end up negative.
2902
290317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2904 support for a long time. Removed HAVE_SYS_VFS_H.
2905
ea3a6f44 290618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2907
290819. Allow an empty sender to be matched against a lookup in an address list.
2909 Previously the only cases considered were a regular expression, or an
2910 empty pattern.
2911
291220. Exim went into a mad DNS lookup loop when doing a callout where the
2913 host was specified on the transport, if the DNS lookup yielded more than
2914 one IP address.
2915
ea3a6f44
NM
291621. The RFC2047 encoding function was originally intended for short strings
2917 such as real names; it was not keeping to the 75-character limit for
2918 encoded words that the RFC imposes. It now respects the limit, and
2919 generates multiple encoded words if necessary. To be on the safe side, I
2920 have increased the buffer size for the ${rfc2047: expansion operator from
2921 1024 to 2048 bytes.
bbe902f0 2922
ea3a6f44
NM
292322. Failure to deliver a bounce message always caused it to be frozen, even if
2924 there was an errors_to setting on the router. The errors_to setting is now
2925 respected.
bbe902f0
PH
2926
292723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2928 canonical form (fully expanded) before being placed in
2929 $sender_host_address.
2930
293124. Updated eximstats to version 1.33
2932
ea3a6f44
NM
293325. Include certificate and key file names in error message when GnuTLS fails
2934 to set them up, because the GnuTLS error message doesn't include the name
2935 of the failing file when there is a problem reading it.
bbe902f0
PH
2936
293726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2938 As per change 25.
bbe902f0 2939
ea3a6f44
NM
294027. Reset the locale to "C" after calling embedded Perl, in case it was changed
2941 (this can affect the format of dates).
bbe902f0 2942
ea3a6f44
NM
294328. exim_tidydb, when checking for the continued existence of a message for
2944 which it has found a message-specific retry record, was not finding
2945 messages that were in split spool directories. Consequently, it was
2946 deleting retry records that should have stayed in existence.
bbe902f0
PH
2947
294829. eximstats updated to version 1.35
2949 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2950 1.35 - bugfix such that pie charts by volume are generated correctly
2951
ea3a6f44
NM
295230. The SPA authentication driver was not abandoning authentication and moving
2953 on to the next authenticator when an expansion was forced to fail,
2954 contradicting the general specification for all authenticators. Instead it
2955 was generating a temporary error. It now behaves as specified.
bbe902f0 2956
ea3a6f44
NM
295731. The default ordering of permitted cipher suites for GnuTLS was pessimal
2958 (the order specifies the preference for clients). The order is now AES256,
2959 AES128, 3DES, ARCFOUR128.
bbe902f0 2960
ea3a6f44
NM
296131. Small patch to Sieve code - explicitly set From: when generating an
2962 autoreply.
bbe902f0 2963
ea3a6f44
NM
296432. Exim crashed if a remote delivery caused a very long error message to be
2965 recorded - for instance if somebody sent an entire SpamAssassin report back
2966 as a large number of 550 error lines. This bug was coincidentally fixed by
2967 increasing the size of one of Exim's internal buffers (big_buffer) that
2968 happened as part of the Exiscan merge. However, to be on the safe side, I
2969 have made the code more robust (and fixed the comments that describe what
2970 is going on).
bbe902f0 2971
ea3a6f44
NM
297233. Some experimental protocols are using DNS PTR records for new purposes. The
2973 keys for these records are domain names, not reversed IP addresses. The
2974 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2975 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2976 CAN-2005-0021
2977
ea3a6f44
NM
297834. The host_aton() function is supposed to be passed a string that is known
2979 to be a valid IP address. However, in the case of IPv6 addresses, it was
2980 not checking this. This is a hostage to fortune. Exim now panics and dies
2981 if the condition is not met. A case was found where this could be provoked
2982 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2983 components; fortuitously, this particular loophole had already been fixed
2984 by change 4.50/55 or 4.44/33 above.
2985
2986 If there are any other similar loopholes, the new check in host_aton()
2987 itself should stop them being exploited. The report I received stated that
2988 data on the command line could provoke the exploit when Exim was running as
2989 exim, but did not say which command line option was involved. All I could
2990 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2991 running as the user.
bbe902f0
PH
2992 CAN-2005-0021
2993
ea3a6f44
NM
299435. There was a buffer overflow vulnerability in the SPA authentication code
2995 (which came originally from the Samba project). I have added a test to the
2996 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2997 CAN-2005-0022
2998
ea3a6f44
NM
299936. The daemon start-up calls getloadavg() while still root for those OS that
3000 need the first call to be done as root, but it missed one case: when
3001 deliver_queue_load_max is set with deliver_drop_privilege. This is
3002 necessary for the benefit of the queue runner, because there is no re-exec
3003 when deliver_drop_privilege is set.
bbe902f0 3004
ea3a6f44
NM
300537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3006 was in use, was not putting the data itself into the right store pool;
3007 consequently, it could be overwritten for a subsequent message in the same
3008 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3009 the caching.)
bbe902f0 3010
ea3a6f44
NM
301138. Sometimes the final signoff response after QUIT could fail to get
3012 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3013 < 0 before doing a fflush(). This bug looks as though it goes back to the
3014 introduction of TLS in release 3.20, but "sometimes" must have been rare
3015 because the tests only now provoked it.
bbe902f0
PH
3016
3017
495ae4b0
PH
3018Exim version 4.43
3019-----------------
3020
3021 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3022 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3023 Now it returns an integer. A number of calls were still expecting a T/F
3024 return. Fortuitously, in all cases, the tests worked in OK situations,
3025 which is the norm. However, things would have gone wrong on any write
3026 failures on the smtp file descriptor. This function is used when sending
3027 messages over SMTP and also when doing verify callouts.
3028
3029 2. When Exim is called to do synchronous delivery of a locally submitted
3030 message (the -odf or -odi options), it no longer closes stderr before doing
3031 the delivery.
3032
3033 3. Implemented the mua_wrapper option.
3034
3035 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3036
3037 5. Implemented the functions header_remove(), header_testname(),
3038 header_add_at_position(), and receive_remove_recipient(), and exported them
3039 to local_scan().
3040
3041 6. If an ACL "warn" statement specified the addition of headers, Exim already
3042 inserted X-ACL-Warn: at the start if there was no header name. However, it
3043 was not making this test for the second and subsequent header lines if
3044 there were newlines in the string. This meant that an invalid header could
3045 be inserted if Exim was badly configured.
3046
3047 7. Allow an ACL "warn" statement to add header lines at the start or after all
3048 the Received: headers, as well as at the end.
3049
3050 8. Added the rcpt_4xx retry error code.
3051
3052 9. Added postmaster_mailfrom=xxx to callout verification option.
3053
305410. Added mailfrom=xxxx to the callout verification option, for verify=
3055 header_sender only.
3056
305711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3058 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3059
306012. Inserted some casts to stop certain compilers warning when using pointer
3061 differences as field lengths or precisions in printf-type calls (mostly
3062 affecting debugging statements).
3063
306413. Added optional readline() support for -be (dynamically loaded).
3065
306614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3067 same clock tick as a message's arrival, so that its received time was the
3068 same as the "first fail" time on the retry record, and that message
3069 remained on the queue past the ultimate address timeout, every queue runner
3070 would try a delivery (because it was past the ultimate address timeout) but
3071 after another failure, the ultimate address timeout, which should have then
3072 bounced the address, did not kick in. This was a "< instead of <=" error;
3073 in most cases the first failure would have been in the next clock tick
3074 after the received time, and all would be well.
3075
307615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3077 being recognized when the domain list was tested by the match_domain
3078 condition in an expansion string.
3079
308016. Added the ${str2b64: operator.
3081
308217. Exim was always calling setrlimit() to set a large limit for the number of
3083 processes, without checking whether the existing limit was already
3084 adequate. (It did check for the limit on file descriptors.) Furthermore,
3085 errors from getrlimit() and setrlimit() were being ignored. Now they are
3086 logged to the main and panic logs, but Exim does carry on, to try to do its
3087 job under whatever limits there are.
3088
308918. Imported PCRE 5.0.
3090
309119. Trivial typo in log message " temporarily refused connection" (the leading
3092 space).
3093
309420. If the log selector return_path_on_delivery was set and an address was
3095 redirected to /dev/null, the delivery process crashed because it assumed
3096 that a return path would always be set for a "successful" delivery. In this
3097 case, the whole delivery is bypassed as an optimization, and therefore no
3098 return path is set.
3099
310021. Internal re-arrangement: the function for sending a challenge and reading
3101 a response while authentication was assuming a zero-terminated challenge
3102 string. It's now changed to take a pointer and a length, to allow for
3103 binary data in such strings.
3104
310522. Added the cyrus_sasl authenticator (code supplied by MBM).
3106
310723. Exim was not respecting finduser_retries when seeking the login of the
3108 uid under which it was called; it was always trying 10 times. (The default
3109 setting of finduser_retries is zero.) Also, it was sleeping after the final
3110 failure, which is pointless.
3111
311224. Implemented tls_on_connect_ports.
3113
311425. Implemented acl_smtp_predata.
3115
311626. If the domain in control=submission is set empty, Exim assumes that the
3117 authenticated id is a complete email address when it generates From: or
3118 Sender: header lines.
3119
312027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3121 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3122 chown and chgrp in /bin and hostname in /usr/bin.
3123
312428. Exim was keeping the "process log" file open after each use, just as it
3125 does for the main log. This opens the possibility of it remaining open for
3126 long periods when the USR1 signal hits a daemon. Occasional processlog
3127 errors were reported, that could have been caused by this. Anyway, it seems
3128 much more sensible not to leave this file open at all, so that is what now
3129 happens.
3130
313129. The long-running daemon process does not normally write to the log once it
3132 has entered its main loop, and it closes the log before doing so. This is
3133 so that log files can straightforwardly be renamed and moved. However,
3134 there are a couple of unusual error situations where the daemon does write
3135 log entries, and I had neglected to close the log afterwards.
3136
313730. The text of an SMTP error response that was received during a remote
3138 delivery was being truncated at 512 bytes. This is too short for some of
3139 the long messages that one sometimes sees. I've increased the limit to
3140 1024.
3141
314231. It is now possible to make retry rules that apply only when a message has a
3143 specific sender, in particular, an empty sender.
3144
314532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3146 it possible to be selective about when SMTP synchronization is enforced.
3147
314833. Added "control = caseful_local_part" and "control = "caselower_local_part".
3149
315032. Implemented hosts_connection_nolog.
3151
315233. Added an ACL for QUIT.
3153
315434. Setting "delay_warning=" to disable warnings was not working; it gave a
3155 syntax error.
3156
315735. Added mailbox_size and mailbox_filecount to appendfile.
3158
315936. Added control = no_multiline_responses to ACLs.
3160
316137. There was a bug in the logic of the code that waits for the clock to tick
3162 in the case where the clock went backwards by a substantial amount such
3163 that the microsecond fraction of "now" was more than the microsecond
3164 fraction of "then" (but the whole seconds number was less).
3165
316638. Added support for the libradius Radius client library this is found on
3167 FreeBSD (previously only the radiusclient library was supported).
3168
3169
3170Exim version 4.42
3171-----------------
3172
3173 1. When certain lookups returned multiple values in the form name=value, the
3174 quoting of the values was not always being done properly. Specifically:
3175 (a) If the value started with a double quote, but contained no whitespace,
3176 it was not quoted.
3177 (b) If the value contained whitespace other than a space character (i.e.
3178 tabs or newlines or carriage returns) it was not quoted.
3179 This fix has been applied to the mysql and pgsql lookups by writing a
3180 separate quoting function and calling it from the lookup code. The fix
3181 should probably also be applied to nisplus, ibase and oracle lookups, but
3182 since I cannot test any of those, I have not disturbed their existing code.
3183
3184 2. A hit in the callout cache for a specific address caused a log line with no
3185 reason for rejecting RCPT. Now it says "Previous (cached) callout
3186 verification failure".
3187
3188 3. There was an off-by-one bug in the queryprogram router. An over-long
3189 return line was truncated at 256 instead of 255 characters, thereby
3190 overflowing its buffer with the terminating zero. As well as fixing this, I
3191 have increased the buffer size to 1024 (and made a note to document this).
3192
3193 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3194 when Exim is waiting for an SMTP response from a remote server, Exim
3195 restarts its select() call on the socket, thereby resetting its timeout.
3196 This is not a problem when such interrupts are rare. Somebody set up a cron
3197 job to run exiwhat every 2 minutes, which is less than the normal select()
3198 timeout (5 or 10 minutes). This meant that the select() timeout never
3199 kicked in because it was always reset. I have fixed this by comparing the
3200 time when an interrupt arrives with the time at the start of the first call
3201 to select(). If more time than the timeout has elapsed, the interrupt is
3202 treated as a timeout.
3203
3204 5. Some internal re-factoring in preparation for the addition of Sieve
3205 extensions (by MH). In particular, the "personal" test is moved to a
3206 separate function, and given an option for scanning Cc: and Bcc: (which is
3207 not set for Exim filters).
3208
3209 6. When Exim created an email address using the login of the caller as the
3210 local part (e.g. when creating a From: or Sender: header line), it was not
3211 quoting the local part when it contained special characters such as @.
3212
3213 7. Installed new OpenBSD configuration files.
3214
3215 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3216 try to make them clearer.
3217
3218 9. Callout options, other than the timeout value, were being ignored when
3219 verifying sender addresses in header lines. For example, when using
3220
3221 verify = header_sender/callout=no_cache
3222
3223 the cache was (incorrectly) being used.
3224
322510. Added a missing instance of ${EXE} to the exim_install script; this affects
3226 only the Cygwin environment.
3227
322811. When return_path_on_delivery was set as a log selector, if different remote
3229 addresses in the same message used different return paths and parallel
3230 remote delivery occurred, the wrong values would sometimes be logged.
3231 (Whenever a remote delivery process finished, the return path value from
3232 the most recently started remote delivery process was logged.)
3233
323412. RFC 3848 specifies standard names for the "with" phrase in Received: header
3235 lines when AUTH and/or TLS are in use. This is the "received protocol"
3236 field. Exim used to use "asmtp" for authenticated SMTP, without any
3237 indication (in the protocol name) for TLS use. Now it follows the RFC and
3238 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3239 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3240 names appear in log lines as well as in Received: header lines.
3241
324213. Installed MH's patches for Sieve to add the "copy" and "vacation"
3243 extensions, and comparison tests, and to fix some bugs.
3244
324514. Changes to the "personal" filter test:
3246
3247 (1) The test was buggy in that it was just doing the equivalent of
3248 "contains" tests on header lines. For example, if a user's address was
3249 anne@some.where, the "personal" test would incorrectly be true for
3250
3251 To: susanne@some.where
3252
3253 This test is now done by extracting each address from the header in turn,
3254 and checking the entire address. Other tests that are part of "personal"
3255 are now done using regular expressions (for example, to check local parts
3256 of addresses in From: header lines).
3257
3258 (2) The list of non-personal local parts in From: addresses has been
3259 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3260 taken from the Sieve specification recommendations.
3261
3262 (3) If the message contains any header line starting with "List-" it is
3263 treated as non-personal.
3264
3265 (4) The test for "circular" in the Subject: header line has been removed
3266 because it now seems ill-conceived.
3267
326815. Minor typos in src/EDITME comments corrected.
3269
327016. Installed latest exipick from John Jetmore.
3271
327217. If headers_add on a router specified a text string that was too long for
3273 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3274 of string_sprintf() is now avoided.
3275
327618. $message_body_size was not set (it was always zero) when running the DATA
3277 ACL and the local_scan() function.
3278
327919. For the "mail" command in an Exim filter, no default was being set for
3280 the once_repeat time, causing a random time value to be used if "once" was
3281 specified. (If the value happened to be <= 0, no repeat happened.) The
3282 default is now 0s, meaning "never repeat". The "vacation" command was OK
3283 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3284 (I found it when inspecting the code).
3285
328620. There is now an overall timeout for performing a callout verification. It
3287 defaults to 4 times the callout timeout, which applies to individual SMTP
3288 commands during the callout. The overall timeout applies when there is more
3289 than one host that can be tried. The timeout is checked before trying the
3290 next host. This prevents very long delays if there are a large number of
3291 hosts and all are timing out (e.g. when the network connections are timing
3292 out). The value of the overall timeout can be changed by specifying an
3293 additional sub-option for "callout", called "maxwait". For example:
3294
3295 verify = sender/callout=5s,maxwait=20s
3296
329721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3298 to the end before writing, but this should make it even safer).
3299
330022. Exim was forgetting that it had advertised PIPELINING for the second and
3301 subsequent messages on an SMTP connection. It was also not resetting its
3302 memory on STARTTLS and an internal HELO.
3303
330423. When Exim logs an SMTP synchronization error within a session, it now
3305 records whether PIPELINING has been advertised or not.
3306
330724. Added 3 instances of "(long int)" casts to time_t variables that were being
3308 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3309 rather than long int.
3310
331125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3312
331326. Added the never_mail option to autoreply.
3314
3315
3316Exim version 4.41
3317-----------------
3318
3319 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3320 crash if the getsockname() call failed; this can happen if a connection is
3321 closed very soon after it is established. The problem was simply in the
3322 order in which certain operations were done, causing Exim to try to write
3323 to the SMTP stream before it had set up the file descriptor. The bug has
3324 been fixed by making things happen in the correct order.
3325
3326
3327Exim version 4.40
3328-----------------
3329
3330 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3331 before the connection was closed, thus losing the rejection response.
3332
3333 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3334 some early Solaris releases, but causes trouble in current releases where
3335 socklen_t is defined.
3336
3337 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3338 always exist.
3339
3340 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3341 configured.
3342
3343 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3344 that releasing the top of it at the end releases what was used for sub-
3345 expansions (unless the block got too big). However, discard this block if
3346 the first thing is a variable or header, so that we can use its block when
3347 it is dynamic (useful for very large $message_headers, for example).
3348
3349 6. Lookups now cache *every* query, not just the most recent. A new, separate
3350 store pool is used for this. It can be recovered when all lookup caches are
3351 flushed. Lookups now release memory at the end of their result strings.
3352 This has involved some general refactoring of the lookup sources.
3353
3354 7. Some code has been added to the store_xxx() functions to reduce the amount
3355 of flapping under certain conditions.
3356
3357 8. log_incoming_interface used to affect only the <= reception log lines. Now
3358 it causes the local interface and port to be added to several more SMTP log
3359 lines, for example "SMTP connection from", and rejection lines.
3360
3361 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3362
336310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3364
336511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3366 could be overwritten at the end of the current message (or the start of a
3367 new message if it was set in a HELO ACL). The value is now preserved for
3368 the duration of the SMTP connection.
3369
337012. If a transport had a headers_rewrite setting, and a matching header line
3371 contained an unqualified address, that address was qualified, even if it
3372 did not match any rewriting rules. The underlying bug was that the values
3373 of the flags that permit the existence of unqualified sender and recipient
3374 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3375 non-local messages, and by -bnq for local messages) were not being
3376 preserved with the message after it was received.
3377
337813. When Exim was logging an SMTP synchronization error, it could sometimes log
3379 "next input=" as part of the text comprising the host identity instead of
3380 the correct text. The code was using the same buffer for two different
3381 strings. However, depending on which order the printing function evaluated
3382 its arguments, the bug did not always show up. Under Linux, for example, my
3383 test suite worked just fine.
3384
338514. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3386 doesn't work with some older versions of Perl. It has been changed to "my",
3387 which in any case is probably the better facility to use.
3388
338915. A really picky compiler found some instances of statements for creating
3390 error messages that either had too many or two few arguments for the format
3391 string.
3392
339316. The size of the buffer for calls to the DNS resolver has been increased
3394 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3395 for addresses that have a lot of PTR records. This alleviates a problem; it
3396 does not fully solve it.
3397
339817. A dnsdb lookup for PTR records that receives more data than will fit in the
3399 buffer now truncates the list and logs the incident, which is the same
3400 action as happens when Exim is looking up a host name and its aliases.
3401 Previously in this situation something unpredictable would happen;
3402 sometimes it was "internal error: store_reset failed".
3403
340418. If a server dropped the connection unexpectedly when an Exim client was
3405 using GnuTLS and trying to read a response, the client delivery process
3406 crashed while trying to generate an error log message.
3407
340819. If a "warn" verb in an ACL added multiple headers to a message in a single
3409 string, for example:
3410
3411 warn message = H1: something\nH2: something
3412
3413 the text was added as a single header line from Exim's point of view
3414 though it ended up OK in the delivered message. However, searching for the
3415 second and subsequent header lines using $h_h2: did not work. This has been
3416 fixed. Similarly, if a system filter added multiple headers in this way,
3417 the routers could not see them.
3418
341920. Expanded the error message when iplsearch is called with an invalid key to
3420 suggest using net-iplsearch in a host list.
3421
342221. When running tests using -bh, any delays imposed by "delay" modifiers in
3423 ACLs are no longer actually imposed (and a message to that effect is
3424 output).
3425
342622. If a "gecos" field in a passwd entry contained escaped characters, in
3427 particular, if it contained a \" sequence, Exim got it wrong when building
3428 a From: or a Sender: header from that name. A second bug also caused
3429 incorrect handling when an unquoted " was present following a character
3430 that needed quoting.
3431
343223. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3433 was not being matched caselessly.
3434
343524. Arranged for all hyphens in the exim.8 source to be escaped with
3436 backslashes.
3437
343825. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3439 properly. Recipient callout cache records were still being keyed to include
3440 the sender, even when use_sender was set false. This led to far more
3441 callouts that were necessary. The sender is no longer included in the key
3442 when use_sender is false.
3443
344426. Added "control = submission" modifier to ACLs.
3445
344627. Added the ${base62d: operator to decode base 62 numbers.
3447
344828. dnsdb lookups can now access SRV records.
3449
345029. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3451 the configuration file.
3452
345330. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3454 (-v) mode. This makes the output for a verbose queue run more intelligible.
3455
345631. Added a use_postmaster feature to recipient callouts.
3457
345832. Added the $body_zerocount variable, containing the number of binary zero
3459 bytes in the message body.
3460
346133. The time of last modification of the "new" subdirectory is now used as the
3462 "mailbox time last read" when there is a quota error for a maildir
3463 delivery.
3464
346534. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3466
346735. Added +ignore_unknown as a special item in host lists.
3468
346936. Code for decoding IPv6 addresses in host lists is now included, even if
3470 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3471 address was recognized as an IP address, but was then not correctly decoded
3472 into binary, causing unexpected and incorrect effects when compared with
3473 another IP address.
3474
3475
3476Exim version 4.34
3477-----------------
3478
3479 1. Very minor rewording of debugging text in manualroute to say "list of
3480 hosts" instead of "hostlist".
3481
3482 2. If verify=header_syntax was set, and a header line with an unqualified
3483 address (no domain) and a large number of spaces between the end of the
3484 name and the colon was received, the reception process suffered a buffer
3485 overflow, and (when I tested it) crashed. This was caused by some obsolete
3486 code that should have been removed. The fix is to remove it!
3487
3488 3. When running in the test harness, delay a bit after writing a bounce
3489 message to get a bit more predictability in the log output.
3490
3491 4. Added a call to search_tidyup() just before forking a reception process. In
3492 theory, someone could use a lookup in the expansion of smtp_accept_max_
3493 per_host which, without the tidyup, could leave open a database connection.
3494
3495 5. Added the variables $recipient_data and $sender_data which get set from a
3496 lookup success in an ACL "recipients" or "senders" condition, or a router
3497 "senders" option, similar to $domain_data and $local_part_data.
3498
3499 6. Moved the writing of debug_print from before to after the "senders" test
3500 for routers.
3501
3502 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3503 problems for message scanning, either using a data ACL, or using
3504 local_scan() because the Received: header was not generated till after they
3505 were called (in order to set the time as the time of reception completion).
3506 I have revised the way this works. The header is now generated after the
3507 body is received, but before the ACL or local_scan() are called. After they
3508 are run, the timestamp in the header is updated.