Further fix to maildirsize. Fixes: #727
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
1da77999 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.584 2009/10/30 15:08:25 nm4 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
NM
6Exim version 4.70
7-----------------
8
cdd3bb85
TK
9TK/01 Added patch by Johannes Berg that expands the main option
10 "spamd_servers" if it starts with a dollar sign.
11
12TK/02 Write list of recipients to X-Envelope-Sender header when building
13 the mbox-format spool file for content scanning (suggested by Jakob
14 Hirsch)
15
16TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
17 (http://www.dcc-servers.net/) support via dccifd. Activated by
18 setting EXPERIMENTAL_DCC=yes in Local/Makefile. Check out
19 experimental_spec.txt for more documentation.
20
21TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
22 by Mark Daniel Reidel <mr@df.eu>.
23
210f147e
NM
24NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
25 When building exim an external PCRE library is now needed -
26 PCRE is a system library on the majority of modern systems.
27 See entry on PCRE_LIBS in EDITME file.
28
deafd5b3
NM
29NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
30 conversation. Added nologin parameter to request.
31 Patch contributed by Kirill Miazine
32
089793a4
TF
33TF/01 Do not log submission mode rewrites if they do not change the address.
34
5f16ca82
TF
35TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
36
dae9d94e
NM
37NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
38 log files in place. Contributed by Roberto Lima
39
3f0da4d0
NM
40NM/04 Bugzilla 667: close socket used by dovecot authenticator
41
06864c44
TF
42TF/03 Bugzilla 615: When checking the local_parts router precondition
43 after a local_part_suffix or local_part_prefix option, Exim now
44 does not use the address's named list lookup cache, since this
45 contains cached lookups for the whole local part.
46
65a7d8c3
NM
47NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
48 Robert Millan. Documentation is in experimental-spec.txt
49
23510047 50TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 51
5f28a6e8
NM
52NM/05 Bugzilla 437: Prevent Maildix aux files being created with mode 000
53
ce552449 54NM/05 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
55 Patch provided by Jan Srzednicki
56
89dec7b6
TF
57TF/05 Leading white space used to be stripped from $spam_report which
58 wrecked the formatting. Now it is preserved.
5f28a6e8 59
a99de90c
TF
60TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
61 that they are available at delivery time.
62
e2803e40
TF
63TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
64
7199e1ee
TF
65TF/08 TLS error reporting now respects the incoming_interface and
66 incoming_port log selectors.
67
e276e04b
TF
68TF/09 Produce a more useful error message if an SMTP transport's hosts
69 setting expands to an empty string.
70
ce552449
NM
71NM/06 Bugzilla 744: EXPN did not work under TLS.
72 Patch provided by Phil Pennock
73
e765a0f1
NM
74NM/07 Bugzilla 769: Extraneous comma in usage fprintf
75 Patch provided by Richard Godbee
76
4f054c63 77NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 78 acl_smtp_notquit, added index entry.
4f054c63 79
24c929a2
NM
80NM/09 Bugzilla 787: Potential buffer overflow in string_format
81 Patch provided by Eugene Bujak
82
cf73943b
NM
83NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
84 Patch provided by Maxim Dounin
85
b52bc06e
NM
86NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
87 Patch provided by Phil Pennock
88
447de4b0
NM
89NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
90
4c69d561
NM
91NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
92 Patch provided by Brad "anomie" Jorsch
93
d5c39246 94NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
NM
95 Patch provided by Dean Brooks
96
0b23848a
TK
97TK/05 Add native DKIM support (does not depend on external libraries).
98
8f3414a1 99NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
NM
100 Patch provided by Graeme Fowler
101
fb6f955d
NM
102NM/16 Bugzilla 851: Documentation example syntax fix.
103
104NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 105
dbb0bf41
NM
106NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
107
f3766eb5
NM
108NM/19 Bugzilla 745: TLS version reporting
109 Patch provided by Phil Pennock
110
111NM/20 Bugzilla 167: bool: condition support
112 Patch provided by Phil Pennock
36f12725 113
e6060e2c
NM
114NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
115 Patch provided by Phil Pennock
116
7496b417 117NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
118 Patch provided by Brad "anomie" Jorsch
119
d5c13d66
NM
120NM/23 Bugzilla 687: Fix misparses in eximstats
121 Patch provided by Heiko Schlittermann
122
b2335c0b
NM
123NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
124 Patch provided by Heiko Schlittermann
125
f4cd9433 126NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 127 plus update to original patch.
f4cd9433
NM
128
129NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 130
8dc71ab3
NM
131NM/27 Bugzilla 802: Improvements to local interface IP addr detection
132 Patch provided by David Brownlee
133
400eda43
NM
134NM/28 Bugzilla 807: Improvements to LMTP delivery logging
135
136NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 137
07af267e
NM
138NM/30 Bugzilla 888: TLS documentation bugfixes
139
0cc09577 140NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 141
deafd5b3 142
47db1125
NM
143Exim version 4.69
144-----------------
145
4b3504d0
TK
146TK/01 Add preliminary DKIM support. Currently requires a forked version of
147 ALT-N's libdkim that I have put here:
148 http://duncanthrax.net/exim-experimental/
149
150 Note to Michael Haardt: I had to rename some vars in sieve.c. They
151 were called 'true' and it seems that C99 defines that as a reserved
152 keyword to be used with 'bool' variable types. That means you could
153 not include C99-style headers which use bools without triggering
154 build errors in sieve.c.
155
81ea09ca
NM
156NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
157 as mailq or other aliases. Changed the --help handling significantly
158 to do whats expected. exim_usage() emits usage/help information.
159
f13cddcb
SC
160SC/01 Added the -bylocaldomain option to eximstats.
161
8ad076b2
NM
162NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
163
a843aaa6
NM
164NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
165
47db1125
NM
166NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
167
168
eb4c0de6
PH
169Exim version 4.68
170-----------------
171
172PH/01 Another patch from the Sieve maintainer.
173
6a3bceb1
PH
174PH/02 When an IPv6 address is converted to a string for single-key lookup
175 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
176 dots are used instead of colons so that keys in lsearch files need not
177 contain colons. This was done some time before quoting was made available
178 in lsearch files. However, iplsearch files do require colons in IPv6 keys
179 (notated using the quote facility) so as to distinguish them from IPv4
180 keys. This meant that lookups for IP addresses in host lists did not work
181 for iplsearch lookups.
182
183 This has been fixed by arranging for IPv6 addresses to be expressed with
184 colons if the lookup type is iplsearch. This is not incompatible, because
185 previously such lookups could never work.
186
187 The situation is now rather anomolous, since one *can* have colons in
188 ordinary lsearch keys. However, making the change in all cases is
189 incompatible and would probably break a number of configurations.
190
2e30fa9d
TK
191TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
192 version.
193
0806a9c5
MH
194MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
195 conversion specification without a maximum field width, thereby enabling
196 a rogue spamd server to cause a buffer overflow. While nobody in their
197 right mind would setup Exim to query an untrusted spamd server, an
198 attacker that gains access to a server running spamd could potentially
199 exploit this vulnerability to run arbitrary code as the Exim user.
200
ae276964
TK
201TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
202 $primary_hostname instead of what libspf2 thinks the hosts name is.
203
0f2cbd1b
MH
204MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
205 a directory entry by the name of the lookup key. Previously, if a
206 symlink pointed to a non-existing file or a file in a directory that
207 Exim lacked permissions to read, a lookup for a key matching that
208 symlink would fail. Now it is enough that a matching directory entry
209 exists, symlink or not. (Bugzilla 503.)
210
2b85bce7
PH
211PH/03 The body_linecount and body_zerocount variables are now exported in the
212 local_scan API.
213
93655c46
PH
214PH/04 Added the $dnslist_matched variable.
215
6c512171
PH
216PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
217 This means they are set thereafter only if the connection becomes
218 encrypted.
219
220PH/06 Added the client_condition to authenticators so that some can be skipped
221 by clients under certain conditions.
222
aa6dc513
PH
223PH/07 The error message for a badly-placed control=no_multiline_responses left
224 "_responses" off the end of the name.
225
a96603a0
PH
226PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
227
8f240103
PH
228PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
229 (without spaces) instead of just copying the configuration text.
230
231PH/10 Added the /noupdate option to the ratelimit ACL condition.
232
d677b2f2
PH
233PH/11 Added $max_received_linelength.
234
d52120f2
PH
235PH/12 Added +ignore_defer and +include_defer to host lists.
236
64f2600a
PH
237PH/13 Installed PCRE version 7.2. This needed some changes because of the new
238 way in which PCRE > 7.0 is built.
239
8669f003
PH
240PH/14 Implemented queue_only_load_latch.
241
a4dc33a8
PH
242PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
243 MAIL command. The effect was to mangle the value on 64-bit systems.
244
d6a60c0f
PH
245PH/16 Another patch from the Sieve maintainer.
246
8f128379
PH
247PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
248
8932dffe
PH
249PH/18 If a system quota error occurred while trying to create the file for
250 a maildir delivery, the message "Mailbox is full" was not appended to the
251 bounce if the delivery eventually timed out. Change 4.67/27 below applied
252 only to a quota excession during the actual writing of the file.
d6a60c0f 253
ddea74fa 254PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
255 characters?) which causes problems in log lines. The DN values are now
256 passed through string_printing() before being added to log lines.
257
ddea74fa 258PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
259 and InterBase are left for another time.)
260
ddea74fa
PH
261PH/21 Added message_body_newlines option.
262
ce9f225c
PH
263PH/22 Guard against possible overflow in moan_check_errorcopy().
264
19897d52
PH
265PH/23 POSIX allows open() to be a macro; guard against that.
266
bc64a74d
PH
267PH/24 If the recipient of an error message contained an @ in the local part
268 (suitably quoted, of course), incorrect values were put in $domain and
269 $local_part during the evaluation of errors_copy.
270
eb4c0de6 271
b4ed4da0
PH
272Exim version 4.67
273-----------------
274
22ad45c9
MH
275MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
276 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
277 Jan Srzednicki.
278
b4ed4da0
PH
279PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
280 issue a MAIL command.
281
431b7361
PH
282PH/02 In an ACL statement such as
283
284 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
285
286 if a client was not listed at all, or was listed with a value other than
287 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
288 the condition was not true (as it should be), so access was not denied.
289 The bug was that the ! inversion was incorrectly passed on to the second
290 item. This has been fixed.
291
292PH/03 Added additional dnslists conditions == and =& which are different from
293 = and & when the dns lookup returns more than one IP address.
294
83da1223
PH
295PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
296 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
297
54fc8428
PH
298PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
299 FSYNC, which compiles an option called disable_fsync that allows for
300 bypassing fsync(). The documentation is heavily laced with warnings.
301
34c5e8dd
SC
302SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
303
bbe15da8
PH
304PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
305 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
306 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
307 including adding "make clean"; (3) Added -fPIC when compiling the test
308 dynamically loaded module, to get rid of a warning.
309
0e8a9471
MH
310MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
311 message fails, move_frozen_messages = true and ignore_bounce_errors_after
312 = 0s. The bug is otherwise harmless.
313
f0872424
PH
314PH/07 There was a bug in the dovecot authenticator such that the value of
315 $auth1 could be overwritten, and so not correctly preserved, after a
316 successful authentication. This usually meant that the value preserved by
317 the server_setid option was incorrect.
318
b01dd148
PH
319PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
320
6bf342e1
PH
321PH/09 Installed PCRE release 7.0.
322
273f34d0
PH
323PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
324 run for batched SMTP input. It is now run at the start of every message
325 in the batch. While fixing this I discovered that the process information
326 (output by running exiwhat) was not always getting set for -bs and -bS
327 input. This is fixed, and it now also says "batched" for BSMTP.
328
cf8b11a5
PH
329PH/11 Added control=no_pipelining.
330
41c7c167
PH
331PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
332 patch, slightly modified), and move the expansion of helo_data till after
333 the connection is made in the smtp transport (so it can use these
334 values).
335
9c57cbc0
PH
336PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
337
f3f065bb
PH
338PH/14 Added log_selector = +pid.
339
047bdd8c
PH
340PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
341
0ce9abe6
PH
342PH/16 Add ${if forany and ${if forall.
343
0e22dfd1
PH
344PH/17 Added dsn_from option to vary the From: line in DSNs.
345
4c590bd1
PH
346PH/18 Flush SMTP output before performing a callout, unless control =
347 no_callout_flush is set.
348
09945f1e
PH
349PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
350 was true (the default) a successful delivery failed to delete the retry
351 item, thus causing premature timeout of the address. The bug is now
352 fixed.
353
c51b8e75
PH
354PH/20 Added hosts_avoid_pipelining to the smtp transport.
355
e28326d8
PH
356PH/21 Long custom messages for fakedefer and fakereject are now split up
357 into multiline reponses in the same way that messages for "deny" and
358 other ACL rejections are.
359
75b1493f
PH
360PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
361 with slight modification.
362
7c5214ec
PH
363PH/23 Applied sieve patches from the maintainer "tracking the latest notify
364 draft, changing the syntax and factoring some duplicate code".
365
4311097e
PH
366PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
367 for deliveries of the second and subsequent messages over the same SMTP
368 connection.
369
29f89cad
PH
370PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
371 ${reduce, with only minor "tidies".
372
5e687460
SC
373SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
374
c3611384
PH
375PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
376 expansion side effects.
377
5a11a7b4
PH
378PH/27 When a message times out after an over-quota error from an Exim-imposed
379 quota, the bounce message says "mailbox is full". This message was not
380 being given when it was a system quota that was exceeded. It now should
381 be the same.
382
0e20aff9
MH
383MH/03 Made $recipients available in local_scan(). local_scan() already has
384 better access to the recipient list through recipients_list[], but
385 $recipients can be useful in postmaster-provided expansion strings.
386
ca86f471
PH
387PH/28 The $smtp_command and $smtp_command_argument variables were not correct
388 in the case of a MAIL command with additional options following the
389 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
390 were accidentally chopped off.
391
a14e5636
PH
392PH/29 SMTP synchronization checks are implemented when a command is read -
393 there is a check that no more input is waiting when there shouldn't be
394 any. However, for some commands, a delay in an ACL can mean that it is
395 some time before the response is written. In this time, more input might
396 arrive, invalidly. So now there are extra checks after an ACL has run for
397 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
398 pipelining has not been advertised.
399
ec95d1a6
PH
400PH/30 MH's patch to allow iscntrl() characters to be list separators.
401
42855d71
PH
402PH/31 Unlike :fail:, a custom message specified with :defer: was not being
403 returned in the SMTP response when smtp_return_error_details was false.
404 This has been fixed.
405
57c2c631
PH
406PH/32 Change the Dovecot authenticator to use read() and write() on the socket
407 instead of the C I/O that was originally supplied, because problems were
408 reported on Solaris.
409
58c01c94
PH
410PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
411 Exim which did not show up earlier: it was assuming that a call to
412 SSL_CTX_set_info_callback() might give an error value. In fact, there is
413 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
414 was a macro that became an assignment, so it seemed to work. This has
415 changed to a proper function call with a void return, hence the compile
416 error. Exim's code has been fixed.
417
dee5a20a
PH
418PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
419 cpus.
420
d2ee6114
PH
421PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
422
b2d5182b
PH
423PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
424
79749a79
PH
425PH/37 If a message is not accepted after it has had an id assigned (e.g.
426 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
427 "Completed" line in the log. When some messages of this type were
428 selected by exigrep, they were listed as "not completed". Others were
429 picked up by some special patterns. I have improved the selection
430 criteria to be more general.
79749a79 431
c456d9bb
PH
432PH/38 The host_find_failed option in the manualroute router can now be set
433 to "ignore", to completely ignore a host whose IP address cannot be
434 found. If all hosts are ignored, the behaviour is controlled by the new
435 host_all_ignored option.
436
cd9868ec
PH
437PH/39 In a list of hosts for manualroute, if one item (either because of multi-
438 homing or because of multiple MX records with /mx) generated more than
439 one IP address, and the following item turned out to be the local host,
440 all the secondary addresses of the first item were incorrectly removed
441 from the list, along with the local host and any following hosts (which
442 is what is supposed to happen).
443
ebeaf996
PH
444PH/40 When Exim receives a message, it writes the login name, uid, and gid of
445 whoever called Exim into the -H file. In the case of the daemon it was
446 behaving confusingly. When first started, it used values for whoever
447 started the daemon, but after a SIGHUP it used the Exim user (because it
448 calls itself on a restart). I have changed the code so that it now always
449 uses the Exim user.
450
2679d413
PH
451PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
452 message are rejected with the same error (e.g. no authentication or bad
453 sender address), and a DATA command is nevertheless sent (as can happen
454 with PIPELINING or a stupid MUA), the error message that was given to the
455 RCPT commands is included in the rejection of the DATA command. This is
456 intended to be helpful for MUAs that show only the final error to their
457 users.
458
84024b72
PH
459PH/42 Another patch from the Sieve maintainer.
460
8005d38e
SC
461SC/02 Eximstats - Differentiate between permanent and temporary rejects.
462 Eximstats - Fixed some broken HTML links and added missing column headers
463 (Jez Hancock).
464 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
465 columns for Rejects, Temp Rejects, Ham, and Spam rows.
466
3298c6c6
SC
467SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
468
a43a27c5
PH
469PH/43 Yet another patch from the Sieve maintainer.
470
58eb016e 471PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
472 the response to the final '.' that terminates a message, but only in the
473 case where the client has not sent further data following the '.'
474 (unfortunately, this is allowed). However, in many cases there won't be
475 any further data because there won't be any more messages to send. A call
476 to select() can be used: if it shows that the input is "ready", there is
477 either input waiting, or the socket has been closed. An attempt to read
478 the next input character can distinguish the two cases. Previously, Exim
58eb016e 479 would have sent an OK response which the client would never have see.
563b63fa
PH
480 This could lead to message repetition. This fix should cure that, at
481 least in a lot of common cases.
58eb016e 482
b43a74ea
PH
483PH/45 Do not advertise STARTTLS in response to HELP unless it would be
484 advertised in response to EHLO.
485
b4ed4da0 486
5dd1517f
PH
487Exim version 4.66
488-----------------
489
490PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
491 fixed by 4.65/MH/01 (is this a record?) are fixed:
492
493 (i) An empty string was always treated as zero by the numeric comparison
494 operators. This behaviour has been restored.
495
496 (ii) It is documented that the numeric comparison operators always treat
497 their arguments as decimal numbers. This was broken in that numbers
498 starting with 0 were being interpreted as octal.
499
500 While fixing these problems I realized that there was another issue that
501 hadn't been noticed. Values of message_size_limit (both the global option
502 and the transport option) were treated as octal if they started with 0.
503 The documentation was vague. These values are now always treated as
504 decimal, and I will make that clear in the documentation.
505
506
93cfa765
TK
507Exim version 4.65
508-----------------
509
510TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
511 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
512 versions. (#438)
513
d6066548
MH
514MH/01 Don't check that the operands of numeric comparison operators are
515 integers when their expansion is in "skipping" mode (fixes bug
516 introduced by 4.64-PH/07).
517
4362ff0d
PH
518PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
519 child addresses, Exim now panics and dies. Previously, because the count
520 is held in a short int, deliveries were likely to be lost. As such a
521 large number of recipients for a single message is ridiculous
522 (performance will be very, very poor), I have chosen to impose a limit
523 rather than extend the field.
524
93cfa765 525
944e9e9c
TF
526Exim version 4.64
527-----------------
aa41d2de 528
21d74bd9
TK
529TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
530 leftover -K file (the existence of which was triggered by #402).
531 While we were at it, introduced process PID as part of the -K
532 filename. This should rule out race conditions when creating
533 these files.
534
535TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
536 processing considerably. Previous code took too long for large mails,
537 triggering a timeout which in turn triggers #401.
538
539TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
540 in the DK code in transports.c. sendfile() is not really portable,
541 hence the _LINUX specificness.
944e9e9c
TF
542
543TF/01 In the add_headers option to the mail command in an Exim filter,
544 there was a bug that Exim would claim a syntax error in any
545 header after the first one which had an odd number of characters
546 in the field name.
547
2b1c6e3a
PH
548PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
549 callout verification, Exim cached a "reject" for the entire domain. This
550 is correct for most verifications, but it is not correct for a recipient
551 verification with use_sender or use_postmaster set, because in that case
552 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
553 case of MAIL FROM:<> rejection from other early rejections (e.g.
554 rejection of HELO). When verifying a recipient using a non-null MAIL
555 address, the cache is ignored if it shows MAIL FROM:<> rejection.
556 Whatever the result of the callout, the value of the domain cache is
557 left unchanged (for any other kind of callout, getting as far as trying
558 RCPT means that the domain itself is ok).
559
1f872c80
PH
560PH/02 Tidied a number of unused variable and signed/unsigned warnings that
561 gcc 4.1.1 threw up.
562
563PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
564 manifest itself as EPIPE rather than ECONNECT. When tidying away a
565 session, the daemon ignores ECONNECT errors and logs others; it now
566 ignores EPIPE as well.
567
d203e649
PH
568PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
569 (quoted-printable decoding).
570
cc2ed8f7 571PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 572 later the small subsequent patch to fix an introduced bug.
f951fd57 573
ddfcd446
PH
574PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
575
d45b1de8
PH
576PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
577
578PH/08 An error is now given if message_size_limit is specified negative.
579
38a0a95f 580PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 581 to be given (somewhat) arbitrary names.
38a0a95f 582
a2405d83
JJ
583JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
584 in 4.64-PH/09.
585
586JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
587 miscellaneous code fixes
588
6ea85e9a
PH
589PH/10 Added the log_reject_target ACL modifier to specify where to log
590 rejections.
591
26da7e20
PH
592PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
593 hostname. This is wrong, because it relates to the incoming message (and
594 probably the interface on which it is arriving) and not to the outgoing
595 callout (which could be using a different interface). This has been
596 changed to use the value of the helo_data option from the smtp transport
597 instead - this is what is used when a message is actually being sent. If
598 there is no remote transport (possible with a router that sets up host
599 addresses), $smtp_active_hostname is used.
6ea85e9a 600
14aa5a05 601PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 602 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
603 (a) The code assumed that strncpy() returns a negative number on buffer
604 overflow, which isn't the case. Replaced with Exim's string_format()
605 function.
606 (b) There were several signed/unsigned issues. I just did the minimum
607 hacking in of casts. There is scope for a larger refactoring.
608 (c) The code used strcasecmp() which is not a standard C function.
609 Replaced with Exim's strcmpic() function.
610 (d) The code set only $1; it now sets $auth1 as well.
611 (e) A simple test gave the error "authentication client didn't specify
612 service in request". It would seem that Dovecot has changed its
613 interface. Fortunately there's a specification; I followed it and
614 changed what the client sends and it appears to be working now.
615
ff75a1f7
PH
616PH/13 Added $message_headers_raw to provide the headers without RFC 2047
617 decoding.
618
e6f6568e
PH
619PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
620 address A is aliased to B and C, where B exists and C does not. Without
621 -v the output is "A verified" because verification stops after a
622 successful redirection if more than one address is generated. However,
623 with -v the child addresses are also verified. Exim was outputting "A
624 failed to verify" and then showing the successful verification for C,
625 with its parentage. It now outputs "B failed to verify", showing B's
626 parentage before showing the successful verification of C.
627
d6f6e0dc
PH
628PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
629 look up a TXT record in a specific list after matching in a combined
630 list.
631
322050c2
PH
632PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
633 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
634 they consult the DNS. I had assumed they would set it the way they
635 wanted; and indeed my experiments on Linux seem to show that in some
636 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
637 To be on the safe side, however, I have now made the interface to
638 host_find_byname() similar to host_find_bydns(), with an argument
639 containing the DNS resolver options. The host_find_byname() function now
640 sets these options at its start, just as host_find_bydns() does. The smtp
641 transport options dns_qualify_single and dns_search_parents are passed to
642 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
643 of host_find_byname() use the default settings of RES_DEFNAMES
644 (qualify_single) but not RES_DNSRCH (search_parents).
645
08955dd3
PH
646PH/17 Applied (a modified version of) Nico Erfurth's patch to make
647 spool_read_header() do less string testing, by means of a preliminary
648 switch on the second character of optional "-foo" lines. (This is
649 overdue, caused by the large number of possibilities that now exist.
650 Originally there were few.) While I was there, I also converted the
651 str(n)cmp tests so they don't re-test the leading "-" and the first
652 character, in the hope this might squeeze out yet more improvement.
653
1eccaa59
PH
654PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
655 flag allowing group syntax was set by the header_syntax check but not
656 turned off, possible causing trouble later; (2) The flag was not being
657 set at all for the header_verify test, causing "group"-style headers to
658 be rejected. I have now set it in this case, and also caused header_
659 verify to ignore an empty address taken from a group. While doing this, I
660 came across some other cases where the code for allowing group syntax
661 while scanning a header line wasn't quite right (mostly, not resetting
662 the flag correctly in the right place). These bugs could have caused
663 trouble for malformed header lines. I hope it is now all correct.
664
602e59e5
PH
665PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
666 with the "reply" argument non-NULL. The code, however (which originally
667 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
668 but it didn't always do it. This confused somebody who was copying the
669 code for some other use. I have removed all the tests.
670
411ef850
PH
671PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
672 feature that was used to support insecure browsers during the U.S. crypto
673 embargo. It requires special client support, and Exim is probably the
674 only MTA that supported it -- and would never use it because real RSA is
675 always available. This code has been removed, because it had the bad
676 effect of slowing Exim down by computing (never used) parameters for the
677 RSA_EXPORT functionality.
678
7befa435
PH
679PH/21 On the advice of Timo Sirainen, added a check to the dovecot
680 authenticator to fail if there's a tab character in the incoming data
681 (there should never be unless someone is messing about, as it's supposed
682 to be base64-encoded). Also added, on Timo's advice, the "secured" option
683 if the connection is using TLS or if the remote IP is the same as the
684 local IP, and the "valid-client-cert option" if a client certificate has
685 been verified.
686
48da4259 687PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
688 authenticators. This can be used for authorization after authentication
689 succeeds. (In the case of plaintext, it servers for both authentication
690 and authorization.)
691
48da4259
PH
692PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
693 if any retry times were supplied.
694
d1d5595c
PH
695PH/24 Exim crashed if verify=helo was activated during an incoming -bs
696 connection, where there is no client IP address to check. In this
697 situation, the verify now always succeeds.
698
0ef732d9
PH
699PH/25 Applied John Jetmore's -Mset patch.
700
328895cc
PH
701PH/26 Added -bem to be like -Mset, but loading a message from a file.
702
fd700877
PH
703PH/27 In a string expansion for a processed (not raw) header when multiple
704 headers of the same name were present, leading whitespace was being
705 removed from all of them, but trailing whitespace was being removed only
706 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
707 before concatenation. Completely empty headers in a concatenation (as
708 before) are ignored.
fd700877 709
8dce1a6f
PH
710PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
711 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
712
17af4a17
PH
713PH/29 [Removed. This was a change that I later backed out, and forgot to
714 correct the ChangeLog entry (that I had efficiently created) before
715 committing the later change.]
f6c332bd
PH
716
717PH/30 Exim was sometimes attempting to deliver messages that had suffered
718 address errors (4xx response to RCPT) over the same connection as other
719 messages routed to the same hosts. Such deliveries are always "forced",
720 so retry times are not inspected. This resulted in far too many retries
721 for the affected addresses. The effect occurred only when there were more
722 hosts than the hosts_max_try setting in the smtp transport when it had
723 the 4xx errors. Those hosts that it had tried were not added to the list
724 of hosts for which the message was waiting, so if all were tried, there
725 was no problem. Two fixes have been applied:
726
727 (i) If there are any address or message errors in an SMTP delivery, none
728 of the hosts (tried or untried) are now added to the list of hosts
729 for which the message is waiting, so the message should not be a
730 candidate for sending over the same connection that was used for a
731 successful delivery of some other message. This seems entirely
732 reasonable: after all the message is NOT "waiting for some host".
733 This is so "obvious" that I'm not sure why it wasn't done
734 previously. Hope I haven't missed anything, but it can't do any
735 harm, as the worst effect is to miss an optimization.
736
737 (ii) If, despite (i), such a delivery is accidentally attempted, the
738 routing retry time is respected, so at least it doesn't keep
739 hammering the server.
740
c1114884
PH
741PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
742 in ${readsocket because some servers need this prod.
743
7a0743eb
PH
744PH/32 Added some extra debug output when updating a wait-xxx database.
745
0d85fa3f
PH
746PH/33 The hint "could be header name not terminated by colon", which has been
747 given for certain expansion errors for a long time, was not being given
748 for the ${if def:h_colon_omitted{... case.
749
1bf43b78
PH
750PH/34 The spec says: "With one important exception, whenever a domain list is
751 being scanned, $domain contains the subject domain." There was at least
752 one case where this was not true.
753
520de300
PH
754PH/35 The error "getsockname() failed: connection reset by peer" was being
755 written to the panic log as well as the main log, but it isn't really
756 panic-worthy as it just means the connection died rather early on. I have
757 removed the panic log writing for the ECONNRESET error when getsockname()
758 fails.
759
48c7f9e2
PH
760PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
761 runs only) independently of the message's sender address. This meant
762 that, if the 4xx error was in fact related to the sender, a different
763 message to the same recipient with a different sender could confuse
764 things. In particualar, this can happen when sending to a greylisting
765 server, but other circumstances could also provoke similar problems.
766 I have changed the default so that the retry time for these errors is now
767 based a combination of the sender and recipient addresses. This change
768 can be overridden by setting address_retry_include_sender=false in the
769 smtp transport.
770
99ea1c86
PH
771PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
772 remote server are returned as part of bounce messages. This was not
773 happening for LMTP over a pipe (the lmtp transport), but now it is the
774 same for both kinds of LMTP.
775
a2042e78
PH
776PH/38 Despite being documented as not happening, Exim was rewriting addresses
777 in header lines that were in fact CNAMEs. This is no longer the case.
778
4fbcfc2e
PH
779PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
780 and queue runs started by the daemon processed all messages. This has
781 been fixed so that -R and -S can now usefully be given with -q<time>.
782
aa41d2de
PH
783PH/40 Import PCRE release 6.7 (fixes some bugs).
784
af561417
PH
785PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
786
3cc66b45
PH
787PH/42 Give an error if -q is specified more than once.
788
194cc0e4
PH
789PH/43 Renamed the variables $interface_address and $interface_port as
790 $received_ip_address and $received_port, to make it clear that these
791 values apply to message reception, and not to the outgoing interface when
792 a message is delivered. (The old names remain recognized, of course.)
793
a401ddaa
PH
794PH/44 There was no timeout on the connect() call when using a Unix domain
795 socket in the ${readsocket expansion. There now is.
796
4e88a19f
PH
797PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
798 be meaningful with "accept".
799
d7d7b289
SC
800SC/01 Eximstats V1.43
801 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
802
803SC/02 Eximstats V1.44
804 Use a glob alias rather than an array ref in the generated
805 parser. This improves both readability and performance.
806
807SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
808 Collect SpamAssassin and rejection statistics.
809 Don't display local sender or destination tables unless
810 there is data to show.
811 Added average volumes into the top table text output.
812
813SC/04 Eximstats V1.46
814 Collect data on the number of addresses (recipients)
815 as well as the number of messages.
816
817SC/05 Eximstats V1.47
818 Added 'Message too big' to the list of mail rejection
819 reasons (thanks to Marco Gaiarin).
820
821SC/06 Eximstats V1.48
822 Mainlog lines which have GMT offsets and are too short to
823 have a flag are now skipped.
824
825SC/07 Eximstats V1.49 (Alain Williams)
826 Added the -emptyok flag.
827
828SC/08 Eximstats V1.50
829 Fixes for obtaining the IP address from reject messages.
830
0ea2a468
JJ
831JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
832 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
833 whitesspace changes from 4.64-PH/27
834
835JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
836 match 4.64-PH/13
837
838JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
839 are found, allow negative numbers in numeric criteria)
840
841JJ/06 exipick.20061117.2, added new $message_body_missing variable
842
843JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
844 to match changes made in 4.64-PH/43
845
8a10f5a4
PH
846PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
847
30e18802
PH
848PH/47 Put in an explicit test for a DNS lookup of an address record where the
849 "domain" is actually an IP address, and force a failure. This locks out
850 those revolvers/nameservers that support "A-for-A" lookups, in
851 contravention of the specifications.
852
55728a4f
PH
853PH/48 When a host name was looked up from an IP address, and the subsequent
854 forward lookup of the name timed out, the host name was left in
855 $sender_host_name, contrary to the specification.
d7d7b289 856
d7837193
PH
857PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
858 restricted to single-key lookups, Exim was not diagnosing an error if
859 * or *@ was used with a query-style lookup.
860
87054a31
PH
861PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
862
ea2c01d2
MH
863MH/01 local_scan ABI version incremented to 1.1. It should have been updated
864 long ago, but noone interested enough thought of it. Let's just say that
865 the "1.1" means that there are some new functions that weren't there at
866 some point in the past.
867
e4fa6968
PH
868PH/51 Error processing for expansion failure of helo_data from an smtp
869 transport during callout processing was broken.
870
56f5d9bd
PH
871PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
872 tested/used via the -bh/-bhc/-bs options.
873
922e1c28
PH
874PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
875 bug, fixed in subsequent PCRE releases).
876
21eb6e72
PH
877PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
878 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
879
a0540757
PH
880PH/55 Check for a ridiculously long file name in exim_dbmbuild.
881
944e9e9c 882
478be7b0
SC
883Exim version 4.63
884-----------------
885
886SC/01 Use a glob alias rather than an array ref in eximstats generated
887 parser. This improves both readability and performance.
888
889SC/02 Collect SpamAssassin and rejection statistics in eximstats.
890 Don't display local sender or destination tables in eximstats unless
891 there is data to show.
892 Added average volumes into the eximstats top table text output.
893
894SC/03 Collect data on the number of addresses (recipients) as well
895 as the number of messages in eximstats.
896
2b965a65
TF
897TF/01 Correct an error in the documentation for the redirect router. Exim
898 does (usually) call initgroups() when daemonizing.
478be7b0 899
45b91596
PH
900TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
901 with consistent privilege compared to when running as a daemon.
478be7b0 902
c59f5781
TF
903TF/03 Note in the spec that $authenticated_id is not set for local
904 submissions from trusted users.
905
90fc3069
TF
906TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
907 Thanks to Dean Brooks <dean@iglou.com> for the patch.
908
6083aca0
TF
909TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
910 by adding some example configuration directives to the default
911 configuration file. A little bit of work is required to uncomment the
912 directives and define how usernames and passwords are checked, but
913 there is now a framework to start from.
914
765b530f
PH
915PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
916 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
917 without this. I don't know how relevant this is to other LDAP libraries.
918
4e167a8c
PH
919PH/02 Add the verb name to the "unknown ACL verb" error.
920
4608d683
PH
921PH/03 Magnus Holmgren's patch for filter_prepend_home.
922
b8dc3e4a
PH
923PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
924
5418e93b
PH
925PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
926 directory not expanded when it should be if an expanded home directory
927 was set for the address (which is overridden by the transport).
928
b4a9bda2
PH
929PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
930 libradius.
931
45b91596
PH
932PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
933 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
934 because it is too late at that time, and has no effect.
935
5547e2c5
PH
936PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
937 security issue with \' (bugzilla #107). I could not use the
938 PQescapeStringConn() function, because it needs a PGconn value as one of
939 its arguments.
940
dbcef0ea
PH
941PH/08 When testing addresses using -bt, indicate those final addresses that
942 are duplicates that would not cause an additional delivery. At least one
943 person was confused, thinking that -bt output corresponded to deliveries.
944 (Suppressing duplicates isn't a good idea as you lose the information
945 about possibly different redirections that led to the duplicates.)
946
25257489
PH
947PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
948 systems where poll() doesn't work, in particular OS X.
949
c816d124
PH
950PH/10 Added more information to debugging output for retry time not reached.
951
a9ccd69a
PH
952PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
953 operations in malware.c.
954
75fa1910
PH
955PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
956 signatures.
957
a7d7aa58
PH
958PH/13 If write_rejectlog was set false when logging was sent to syslog with
959 syslog_duplication set false, log lines that would normally be written
960 both the the main log and to the reject log were not written to syslog at
961 all.
962
42119b09
PH
963PH/14 In the default configuration, change the use of "message" in ACL warn
964 statements to "add_header".
965
41609df5
PH
966PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
967 not followed by a command (e.g. "seen endif").
968
a5bd321b
PH
969PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
970 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
971 latter.
972
e85a7ad5 973PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
974 so that it is now:
975
e85a7ad5
PH
976 ${if or { \
977 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
978 { match{$h_precedence:}{(?i)bulk|list|junk} } \
979 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
980 }{no}{yes}}
981
e85a7ad5
PH
982 The Auto-Submitted: and various List- headers are standardised, whereas I
983 don't think Precedence: ever was.
5dff5817 984
d8fe1c03
PH
985PH/18 Refactored debugging code in route_finduser() to show more information,
986 in particular, the error code if getpwnam() issues one.
987
16282d2b
PH
988PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
989 This is apparently needed in addition to the PH/07 change above to avoid
990 any possible encoding problems.
991
35d40a98
PH
992PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
993 but not after initializing Perl.
994
034d99ab
PH
995PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
996 output them only if debugging. By default they are written stderr,
997 apparently, which is not desirable.
998
6ec97b1b
PH
999PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1000 queries.
1001
e22ca4ac
JJ
1002JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1003 --not options
1004
1005JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1006
33d73e3b
PH
1007PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1008 authenticated or an ident call has been made. Suppress the default
1009 values for $authenticated_id and $authenticated_sender (but permit -oMai
1010 and -oMas) when testing with -bh.
1011
9ecb03f3
PH
1012PH/24 Re-jigged the order of the tests in the default configuration so that the
1013 tests for valid domains and recipients precede the DNS black list and CSA
1014 tests, on the grounds that those ones are more expensive.
1015
084efe8d
PH
1016PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1017 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1018 This bug exists in every version of Exim that I still have, right back to
1019 0.12.
1020
366fc9f0
PH
1021PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1022 However, an attempt to turn on case-sensitivity in a regex key by
1023 including (?-i) didn't work because the subject string was already
1024 lowercased, and the effects were non-intuitive. It turns out that a
1025 one-line patch can be used to allow (?-i) to work as expected.
1026
c59f5781 1027
c887c79e
TF
1028Exim version 4.62
1029-----------------
1030
1031TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1032 other effects) broke the use of negated acl sub-conditions.
1033
1cce3af8
PH
1034PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1035 patch).
1036
afb3eaaf
PH
1037PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1038 "Deny" causes Exim to reject the incoming connection with a 554 error.
1039 Unfortunately, if there is a major crisis, such as a disk failure,
1040 tcp-wrappers gives "deny", whereas what one would like would be some
1041 kind of temporary error. A kludge has been added to help with this.
1042 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1043 554 error is used if errno is still zero or contains ENOENT (which occurs
1044 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1045 451 error is used.
1046
e173618b
PH
1047PH/03 Add -lutil to the default FreeBSD LIBS setting.
1048
dd16e114
PH
1049PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1050 errors. Otherwise a message that provokes a temporary error (when other
1051 messages do not) can cause a whole host to time out.
1052
f7fd3850
PH
1053PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1054 addresses were routed directly to files or pipes from a redirect router.
1055 File deliveries just didn't batch; pipe deliveries might have suffered
1056 odd errors.
1057
d87df92c
PH
1058PH/06 A failure to get a lock for a hints database would erroneously always say
1059 "Failed to get write lock", even when it was really a read lock.
1060
7e9f683d
PH
1061PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1062 of 0600. This has been changed to use the value of the lockfile_mode
1063 option (which defaults to 0600).
1064
bfad5236
PH
1065PH/08 Applied small patch from the Sieve maintainer.
1066
01c490df
PH
1067PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1068 folder from quota calculations, a direct delivery into this folder messed
1069 up the contents of the maildirsize file. This was because the regex was
1070 used only to exclude .Trash (or whatever) when the size of the mailbox
1071 was calculated. There was no check that a delivery was happening into an
1072 excluded directory. This bug has been fixed by ignoring all quota
1073 processing for deliveries into excluded directories.
1074
d6629cdc
PH
1075PH/10 Added the maildirfolder_create_regex option to appendfile.
1076
1cce3af8 1077
214e2000
PH
1078Exim version 4.61
1079-----------------
1080
1081PH/01 The code for finding all the local interface addresses on a FreeBSD
1082 system running IPv6 was broken. This may well have applied to all BSD
1083 systems, as well as to others that have similar system calls. The broken
1084 code found IPv4 interfaces correctly, but gave incorrect values for the
1085 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1086 that it would not match correctly against @[] and not recognize the IPv6
1087 addresses as local.
1088
f9daeae0
PH
1089PH/02 The ipliteral router was not recognizing addresses of the form user@
1090 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1091
7e66e54d
PH
1092PH/03 Added disable_ipv6.
1093
c8ea1597
PH
1094PH/04 Changed $reply_address to use the raw form of the headers instead of the
1095 decoded form, because it is most often used to construct To: headers
1096 lines in autoreplies, and the decoded form may well be syntactically
1097 invalid. However, $reply_address has leading white space removed, and all
1098 newlines turned into spaces so that the autoreply transport does not
1099 grumble.
1100
911f6fde
PH
1101PH/05 If group was specified without a user on a router, and no group or user
1102 was specified on a transport, the group from the router was ignored.
1103
47ca6d6c
PH
1104PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1105 for visible compile-time settings that can be used to change these
1106 numbers, for those that want even more. Backwards compatibility with old
1107 spool files has been maintained. However, going back to a previous Exim
1108 release will lost any variables that are in spool files.
1109
ed0e9820
PH
1110PH/07 Two small changes when running in the test harness: increase delay when
1111 passing a TCP/IP connection to a new process, in case the original
1112 process has to generate a bounce, and remove special handling of
1113 127.0.0.2 (sic), which is no longer necessary.
1114
eff37e47
PH
1115PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1116 be the same on different OS.
1117
1921d2ea
PH
1118PH/09 Moved a debug statement in filter processing to avoid a race problem when
1119 testing.
1120
b3f69ca8
JJ
1121JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1122 whether --show-vars was specified or not
1123
1124JJ/02 exipick: Added support for new ACL variable spool format introduced
1125 in 4.61-PH/06
1126
424a1c63
PH
1127PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1128 syntactically invalid From: or Reply-to: line, and a filter used this to
1129 generate an autoreply, and therefore failed to obtain an address for the
1130 autoreply, Exim could try to deliver to a non-existent relative file
1131 name, causing unrelated and misleading errors. What now happens is that
1132 it logs this as a hard delivery error, but does not attempt to create a
1133 bounce message.
1134
7a100415
PH
1135PH/11 The exinext utility has a -C option for testing purposes, but although
1136 the given file was scanned by exinext itself; it wasn't being passed on
1137 when Exim was called.
1138
19b9dc85
PH
1139PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1140 an end-of-file indication when reading a command response.
1141
309bd837
PH
1142PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1143 compiled. In many other places in Exim, IPv6 addresses are always
1144 recognized, so I have changed this. It also means that IPv4 domain
1145 literals of the form [IPV4:n.n.n.n] are now always recognized.
1146
59e82a2a
PH
1147PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1148 used if the router is not running as root, for example, when verifying at
1149 ACL time, or when using -bh. The debugging output from this situation was
1150 non-existent - all you got was a failure to exec. I have made two
1151 changes:
1152
1153 (a) Failures to set uid/gid, the current directory, or a process leader
1154 in a subprocess such as that created by queryprogram now generate
1155 suitable debugging ouput when -d is set.
1156
1157 (b) The queryprogram router detects when it is not running as root,
1158 outputs suitable debugging information if -d is set, and then runs
1159 the subprocess without attempting to change uid/gid.
1160
9edc04ce
PH
1161PH/15 Minor change to Makefile for building test_host (undocumented testing
1162 feature).
1163
1349e1e5
PH
1164PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1165 additional section of a DNS packet that returns MX or SRV records.
1166 Instead, it always explicitly searches for A/AAAA records. This avoids
1167 major problems that occur when a DNS server includes only records of one
1168 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1169 fixed another bug: if SRV records were looked up and the corresponding
1170 address records were *not* found in the additional section, the port
1171 values from the SRV records were lost.
1172
ea49d0e1
PH
1173PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1174 using the correct key (the original address) when searching the retry
1175 rules in order to find which one to use for generating the retry hint.
1176
064a94c9
PH
1177PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1178 adding the default one. Similarly, if it contains a Reply-To: header, the
1179 errors_reply_to option, if set, is not used.
1180
727071f8
PH
1181PH/19 When calculating a retry time, Exim used to measure the "time since
1182 failure" by looking at the "first failed" field in the retry record. Now
1183 it does not use this if it is later than than the arrival time of the
1184 message. Instead it uses the arrival time. This makes for better
1185 behaviour in cases where some deliveries succeed, thus re-setting the
1186 "first failed" field. An example is a quota failure for a huge message
1187 when small messages continue to be delivered. Without this change, the
1188 "time since failure" will always be short, possible causing more frequent
1189 delivery attempts for the huge message than are intended.
dd16e114 1190 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1191
f78eb7c6
PH
1192PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1193 $1, $2, $3) because the numerical variables can be reset during some
1194 expansion items (e.g. "match"), thereby losing the authentication data.
1195
21c28500
PH
1196PH/21 Make -bV show the size of off_t variables so that the test suite can
1197 decide whether to run tests for quotas > 2G.
1198
1199PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1200 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1201 filecount value is greater than 2G or if a quota value is greater than 2G
1202 on a system where the size of off_t is not greater than 4, a panic error
1203 is given.
1204
1688f43b
PH
1205PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1206 never match. The debug and -bh output now contains an explicit error
1207 message indicating a malformed IPv4 address or mask.
1208
1209PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1210 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1211 PH/23 above applies.
1212
9675b384
PH
1213PH/25 Do not write to syslog when running in the test harness. The only
1214 occasion when this arises is a failure to open the main or panic logs
1215 (for which there is an explicit test).
1216
6a3f1455
PH
1217PH/26 Added the /no_tell option to "control=freeze".
1218
dac79d3e
PH
1219PH/27 If a host name lookup failed very early in a connection, for example, if
1220 the IP address matched host_lookup and the reverse lookup yielded a name
1221 that did not have a forward lookup, an error message of the form "no IP
1222 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1223 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1224
5977a0b3
PH
1225PH/28 An enabling patch from MH: add new function child_open_exim2() which
1226 allows the sender and the authenticated sender to be set when
1227 submitting a message from within Exim. Since child_open_exim() is
1228 documented for local_scan(), the new function should be too.
1229
c91535f3
PH
1230PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1231 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1232 results in an empty string is now treated as unset.
1233
0d46a8c8
PH
1234PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1235
278c6e6c
PH
1236PH/31 Added sender_verify_fail logging option.
1237
2cbb4081
PH
1238PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1239 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1240 tidied the source and removed it altogether.
1241
3eef829e
PH
1242PH/33 When a queue run was abandoned because the load average was too high, a
1243 log line was always written; now it is written only if the queue_run log
1244 selector is set. In addition, the log line for abandonment now contains
1245 information about the queue run such as the pid. This is always present
1246 in "start" and "stop" lines but was omitted from the "abandon" line.
1247
1ab95fa6
PH
1248PH/34 Omit spaces between a header name and the colon in the error message that
1249 is given when verify = headers_syntax fails (if there are lots of them,
1250 the message gets confusing).
1251
230205fc
PH
1252PH/35 Change the default for dns_check_names_pattern to allow slashes within
1253 names, as there are now some PTR records that contain slashes. This check
1254 is only to protect against broken name servers that fall over on strange
1255 characters, so the fact that it applies to all lookups doesn't matter.
1256
75e0e026
PH
1257PH/36 Now that the new test suite is complete, we can remove some of the
1258 special code in Exim that was needed for the old test suite. For example,
1259 sorting DNS records because real resolvers return them in an arbitrary
1260 order. The new test suite's fake resolver always returns records in the
1261 same order.
1262
1263PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1264 bounces) except when queue_only is set, to avoid logging races between
1265 the different processes.
1266
145396a6
PH
1267PH/38 Panic-die if .include specifies a non-absolute path.
1268
3cd34f13
PH
1269PH/39 A tweak to the "H" retry rule from its user.
1270
11121d3d
JJ
1271JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1272 a label. They prevented compilation on older perls.
1273
1274JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1275 a warning to be raised on newish perls.
1276
1277JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1278 on queue. Changes to match documented behaviour of showing count of
1279 messages matching specified criteria.
1280
8def5aaf
PH
1281PH/40 Changed the default ident timeout from 30s to 5s.
1282
929ba01c
PH
1283PH/41 Added support for the use of login_cap features, on those BSD systems
1284 that have them, for controlling the resources used by pipe deliveries.
1285
2632889e
PH
1286PH/42 The content-scanning code uses fopen() to create files in which to put
1287 message data. Previously it was not paying any attention to the mode of
1288 the files. Exim runs with umask(0) because the rest of the code creates
1289 files with open(), and sets the required mode explicitly. Thus, these
1290 files were ending up world-writeable. This was not a big issue, because,
1291 being within the spool directory, they were not world-accessible. I have
1292 created a function called modefopen, which takes an additional mode
1293 argument. It sets umask(777), creates the file, chmods it to the required
1294 mode, then resets the umask. All the relevant calls to fopen() in the
1295 content scanning code have been changed to use this function.
1296
944a9c55
PH
1297PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1298 to 24 hours. This avoids potential overflow problems when processing G
1299 and H retry rules. I suspect nobody ever tinkers with this value.
1300
4a23603b
PH
1301PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1302
4730f942
PH
1303PH/45 When the plaintext authenticator is running as a client, the server's
1304 challenges are checked to ensure they are valid base64 strings. By
1305 default, the authentication attempt is cancelled if an invalid string is
1306 received. Setting client_ignore_invalid_base64 true ignores these errors.
1307 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1308 they are received. Thus, the responses can be made to depend on the
1309 challenges. If an invalid string is ignored, an empty string is placed in
1310 the variable.
1311
30dba1e6
PH
1312PH/46 Messages that are created by the autoreply transport now contains a
1313 References: header, in accordance with RFCs 2822 and 3834.
1314
382afc6b
PH
1315PH/47 Added authenticated_sender_force to the smtp transport.
1316
a86229cf
PH
1317PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1318
50c99ba6
PH
1319PH/49 Installed latest patch from the Sieve maintainer.
1320
d35e429d
PH
1321PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1322 was also set, the appendfile transport was unnecessarily scanning a
1323 directory of message files (e.g. for maildir delivery) to find the count
1324 of files (along with the size), even though it did not need this
1325 information. It now does the scan only if it needs to find either the
1326 size of the count of files.
1327
f90d018c
PH
1328PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1329
75def545
PH
1330PH/52 Two bugs concerned with error handling when the smtp transport is
1331 used in LMTP mode:
1332
1333 (i) Exim was not creating retry information for temporary errors given
1334 for individual recipients after the DATA command when the smtp transport
1335 was used in LMTP mode. This meant that they could be retried too
1336 frequently, and not timed out correctly.
1337
1338 (ii) Exim was setting the flag that allows error details to be returned
1339 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1340 recipients that were returned after the DATA command.
1341
1342PH/53 This is related to PH/52, but is more general: for any failing address,
1343 when detailed error information was permitted to be returned to the
1344 sender, but the error was temporary, then after the final timeout, only
1345 "retry timeout exceeded" was returned. Now it returns the full error as
1346 well as "retry timeout exceeded".
1347
c46782ef
PH
1348PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1349 do this, and (what is worse) MTAs that accept it.
1350
71fafd95
PH
1351PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1352 will now be deprecated.
1353
2c5db4fd
PH
1354PH/56 New os.c-cygwin from the Cygwin maintainer.
1355
9cf6b11a
JJ
1356JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1357 formats (previously only available in exim formats via -bpr, -bpru,
1358 and -bpra. Now also available in native and exiqgrep formats)
1359
1360JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1361 with very large, slow to parse queues
1362
1363JJ/08 exipick: added ! as generic prefix to negate any criteria format
1364
1365JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1366
898d150f
PH
1367PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1368 responses to authentication challenges, though it was showing the
1369 challenges; (ii) I've removed the CR characters from the debug output for
1370 SMTP output lines.
1371
46218253
PH
1372PH/58 Allow for the insertion of a newline as well as a space when a string
1373 is turned into more than one encoded-word during RFC 2047 encoding. The
1374 Sieve code now uses this.
1375
e97957bc
PH
1376PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1377 data_4xx, lost_connection, tls_required.
1378
81e509d7
PH
1379PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1380 message was being sent as an SMTP response.
1381
3d240ff7
PH
1382PH/61 Add -l and -k options to exicyclog.
1383
b37c4101
PH
1384PH/62 When verifying, if an address was redirected to one new address, so that
1385 verification continued, and the new address failed or deferred after
1386 having set something in $address_data, the value of $address_data was not
1387 passed back to the ACL. This was different to the case when no
1388 redirection occurred. The value is now passed back in both cases.
1389
79378e0f
PH
1390PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1391 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1392 use login_cap.h, so on its own it isn't the distinguishing feature. The
1393 new name refers directly to the setclassresources() function.
1394
e49c7bb4
PH
1395PH/65 Added configuration files for NetBSD3.
1396
d114ec46
PH
1397PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1398
f3d7df6c
PH
1399PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1400 is preferred over IPv4.
1401
715ab376
PH
1402PH/68 The bounce_return_message and bounce_return_body options were not being
1403 honoured for bounces generated during the reception of non-SMTP messages.
1404 In particular, this applied to messages rejected by the ACL. This bug has
1405 been fixed. However, if bounce_return_message is true and bounce_return_
1406 body is false, the headers that are returned for a non-SMTP message
1407 include only those that have been read before the error was detected.
1408 (In the case of an ACL rejection, they have all been read.)
1409
6b31b150
PH
1410PH/69 The HTML version of the specification is now built in a directory called
1411 spec_html instead of spec.html, because the latter looks like a path with
1412 a MIME-type, and this confuses some software.
1413
1414PH/70 Catch two compiler warnings in sieve.c.
1415
d515a917
PH
1416PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1417 function verify_get_ident() calls ip_connect() to connect a socket, but
1418 if the "connect()" function timed out, ip_connect() used to close the
1419 socket. However, verify_get_ident() also closes the socket later, and in
1420 between Exim writes to the log, which may get opened at this point. When
1421 the socket was closed in ip_connect(), the log could get the same file
1422 descriptor number as the socket. This naturally causes chaos. The fix is
1423 not to close the socket in ip_connect(); the socket should be closed by
1424 the function that creates it. There was only one place in the code where
1425 this was missing, in the iplookup router, which I don't think anybody now
1426 uses, but I've fixed it anyway.
1427
9b8fadde
PH
1428PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1429 well as to direct DNS lookups. Otherwise the handling of names in host
1430 lists is inconsistent and therefore confusing.
1431
214e2000 1432
5de37277
PH
1433Exim version 4.60
1434-----------------
1435
cc38ddbf
PH
1436PH/01 Two changes to the default runtime configuration:
1437
1438 (1) Move the checks for relay_from_hosts and authenticated clients from
1439 after to before the (commented out) DNS black list checks.
1440
1441 (2) Add control=submission to the relay_from_hosts and authenticated
1442 clients checks, on the grounds that messages accepted by these
1443 statements are most likely to be submissions.
5de37277 1444
72fdd6ae
PH
1445PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1446
1447 (1) Generate an error if the third argument for the ${prvs expansion is
1448 not a single digit.
1449
1450 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1451 string.
1452
1453 (3) Reset the variables that are obtained from the first argument of
1454 ${prvscheck and used in the second argument before leaving the code,
1455 because their memory is reclaimed, so using them afterwards may do
1456 silly things.
1457
1458 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1459 one (it's much easier than Tom thought :-).
1460
1461 (5) Because of (4), we can now allow for the use of $prvscheck_result
1462 inside the third argument.
cb9328de 1463
cb741023
PH
1464PH/03 For some reason, the default setting of PATH when running a command from
1465 a pipe transport was just "/usr/bin". I have changed it to
1466 "/bin:/usr/bin".
1467
f174f16e
PH
1468PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1469 anything to be listed in the output from -bV.
b2f5a032 1470
c25242d7
PH
1471PH/05 When a filter generated an autoreply, the entire To: header line was
1472 quoted in the delivery log line, like this:
1473
1474 => >A.N.Other <ano@some.domain> <original@ddress> ...
1475
1476 This has been changed so that it extracts the operative address. There
1477 may be more than one such address. If so, they are comma-separated, like
1478 this:
1479
1480 => >ano@some.domain,ona@other.domain <original@ddress> ...
1481
82c19f95
PH
1482PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1483 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1484 not being looked up in the rDNS to get a host name, Exim was showing the
1485 IP address twice in Received: lines, even though the IP addresses were
1486 identical. For example:
1487
1488 Received: from [1.2.3.4] (helo=[1.2.3.4])
1489
1490 However, if the real host name was known, it was omitting the HELO data
1491 if it matched the actual IP address. This has been tidied up so that it
1492 doesn't show the same IP address twice.
1493
d7ffbc12
PH
1494PH/07 When both +timestamp and +memory debugging was on, the value given by
1495 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1496 called by the debug printing, thereby overwriting the timestamp buffer.
1497 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1498
9f526266
PH
1499PH/08 When the original message was included in an autoreply transport, it
1500 always said "this is a copy of the message, including all the headers",
1501 even if body_only or headers_only was set. It now gives an appropriate
1502 message.
1503
87fcc8b9
PH
1504PH/09 Applied a patch from the Sieve maintainer which:
1505
1506 o fixes some comments
1507 o adds the (disabled) notify extension core
1508 o adds some debug output for the result of if/elsif tests
1509 o points to the current vacation draft in the documentation
1510 and documents the missing references header update
1511
1512 and most important:
1513
1514 o fixes a bug in processing the envelope test (when testing
1515 multiple envelope elements, the last element determinted the
1516 result)
1517
456682f5
PH
1518PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1519 Electronic Mail") by including:
1520
1521 Auto-submitted: auto-generated
1522
1523 in the messages that it generates (bounce messages and others, such as
1524 warnings). In the case of bounce messages for non-SMTP mesages, there was
1525 also a typo: it was using "Auto_submitted" (underscore instead of
1526 hyphen). Since every message generated by Exim is necessarily in response
1527 to another message, thes have all been changed to:
1528
1529 Auto-Submitted: auto-replied
1530
1531 in accordance with these statements in the RFC:
1532
1533 The auto-replied keyword:
1534
1535 - SHOULD be used on messages sent in direct response to another
1536 message by an automatic process,
1537
1538 - MUST NOT be used on manually-generated messages,
1539
1540 - MAY be used on Delivery Status Notifications (DSNs) and Message
1541 Disposition Notifications (MDNs),
1542
1543 - MUST NOT be used on messages generated by automatic or periodic
1544 processes, except for messages which are automatic responses to
1545 other messages.
1546
3e46c1aa
PH
1547PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1548 to the default Received: header definition.
456682f5 1549
49826d12
PH
1550PH/12 Added log selector acl_warn_skipped (default on).
1551
eba0c039
PH
1552PH/13 After a successful wildlsearch lookup, discard the values of numeric
1553 variables because (a) they are in the wrong storage pool and (b) even if
1554 they were copied, it wouldn't work properly because of the caching.
1555
a0d6ba8a
PH
1556PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1557 checking when decoding. Apparently there are clients that generate
1558 overlong encoded strings. Why am I not surprised?
1559
f0917727
PH
1560PH/15 If the first argument of "${if match_address" was not empty, but did not
1561 contain an "@" character, Exim crashed. Now it writes a panic log message
1562 and treats the condition as false.
1563
096fee00
PH
1564PH/16 In autoreply, treat an empty string for "once" the same as unset.
1565
024bd3c2
PH
1566PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1567 extension "envelope-auth". The code is finished and in agreement with
1568 other implementations, but there is no documentation so far and in fact,
1569 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1570 not changing the active code.
1571
1572 Print executed "if" and "elsif" statements when debugging is used. This
1573 helps a great deal to understand what a filter does.
1574
1575 Document more things not specified clearly in RFC3028. I had all this
1576 sorted out, when out of a sudden new issues came to my mind. Oops."
1577
df199fec
PH
1578PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1579 (Bugzilla #53).
1580
d27f1df3
PH
1581PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1582 canonical form (as documented). However, after a host name lookup from
1583 the IP address, check_host() was doing a simple string comparison with
1584 addresses acquired from the DNS when checking that the found name did
1585 have the original IP as one of its addresses. Since any found IPv6
1586 addresses are likely to be in abbreviated form, the comparison could
1587 fail. Luckily, there already exists a function for doing the comparison
1588 by converting both addresses to binary, so now that is used instead of
1589 the text comparison.
1590
96776534
PH
1591PH/20 There was another similar case to PH/19, when a complete host name was
1592 given in a host list; looking up its IP address could give an abbreviated
1593 form, whereas the current host's name might or might not be abbreviated.
1594 The same fix has been applied.
1595
5de37277 1596
9a799bc0
PH
1597Exim version 4.54
1598-----------------
1599
1600PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1601 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1602 It now does.
1603
99a4b039
PH
1604PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1605 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1606
1607PH/03 Typo: missing ".o" in src/pcre/Makefile.
1608
4b233853
PH
1609PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1610 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1611 Also, for "Auto-Submitted", treat anything other than "no" as
1612 non-personal, in accordance with RFC 3834. (Previously it treated
1613 anything starting "auto-" as non-personal.)
1614
8857ccfd
PH
1615TF/01 The control=submission/name=... option had a problem with syntax
1616 errors if the name included a slash character. The /name= option
1617 now slurps the rest of the string, so it can include any characters
1618 but it must come last in the list of options (after /sender_retain
1619 or /domain=).
1620
433a2980
PH
1621PH/05 Some modifications to the interface to the fake nameserver for the new
1622 testing suite.
1623
3e46c1aa 1624
9a799bc0 1625
e3a311ba
TK
1626Exim version 4.53
1627-----------------
1628
1629TK/01 Added the "success_on_redirect" address verification option. See
1630 NewStuff for rationale and an example.
1631
13b685f9
PH
1632PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1633
395ff96d
PH
1634PH/02 Patch to exigrep to allow it to work on syslog lines.
1635
5b68f6e4
PH
1636PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1637 fread() to skip over the body file's header line, because in Cygwin the
1638 header line is locked and is inaccessible.
1639
1ab52c69
PH
1640PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1641 co-exist for some time) to make it clear that it is the Exim ID that is
1642 referenced, not the Message-ID: header line.
1643
b07e6aa3
PH
1644PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1645 string_format() function, because snprintf() does not exist on all
1646 operating systems.
1647
254e032f
PH
1648PH/06 The use of forbid_filter_existstest now also locks out the use of the
1649 ${stat: expansion item.
1650
3af76a81
PH
1651PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1652 protocol synchronization error", to keep the pedants happy.
1653
2548ba04
PH
1654PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1655 well as for IRIX systems, when gcc is being used. See the host.c source
1656 file for comments.
1657
b6c6011d
PH
1658PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1659
cf39cf57
PH
1660PH/10 Named domain lists were not working if used in a queue_smtp_domains
1661 setting.
1662
f1513293
PH
1663PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1664 transport and to the smtp transport in LMTP mode.
1665
727549a4
PH
1666TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1667
af46795e
PH
1668PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1669 run a filter in a subprocess. This could lead to confusion in subsequent
1670 lookups in the parent process. There should also be a search_tidyup() at
1671 the end of the subprocess.
1672
d7b47fd0
PH
1673PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1674 only if the host matched helo_try_verify_hosts, which caused the
1675 verification to occur when the EHLO/HELO command was issued. The ACL just
1676 tested the remembered result. Now, if a previous verification attempt has
1677 not happened, "verify = helo" does it there and then.
1678
ee744174
JJ
1679JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1680
b582ab87
PH
1681TK/03 Fix log output including CR from clamd.
1682
41a13e0a
PH
1683PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1684 exist provoked a memory error which could cause a segfault.
1685
f625cc5a
PH
1686PH/15 Installed PCRE 6.2
1687
1688PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1689
21f7af35
PH
1690PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1691 of the problem. Specifically, suggested +O2 rather than +O1 for the
1692 HP-UX compiler.
1693
31480e42
PH
1694PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1695
2d280592
PH
1696PH/20 If a delivery was routed to a non-standard port by means of an SRV
1697 record, the port was not correctly logged when the outgoing_port log
1698 selector was set (it logged the transort's default port).
1699
7cd1141b
PH
1700PH/21 Added support for host-specific ports to manualroute, queryprogram,
1701 fallback_hosts, and "hosts" in the smtp transport.
1702
1703PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1704 host errors such as "Connection refused".
1705
750af86e
PH
1706PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1707 authentication with radiusclient 0.4.9:
1708
1709 - Error returned from rc_read_config was caught wrongly
1710 - Username/password not passed on to radius server due to wrong length.
1711
1712 The presumption is that some radiusclient API changes for 4.51/PH/17
1713 were not taken care of correctly. The code is still untested by me (my
1714 Linux distribution still has 0.3.2 of radiusclient), but it was
1715 contributed by a Radius user.
1716
1717PH/24 When doing a callout, the value of $domain wasn't set correctly when
1718 expanding the "port" option of the smtp transport.
1719
4304270b
TK
1720TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1721 while reading a MIME header. Thanks to Tom Hughes for a patch.
1722
750af86e
PH
1723PH/24 Include config.h inside local_scan.h so that configuration settings are
1724 available.
1725
64ffc24f
PH
1726PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1727 that in an ACL for RCPT (for example), you can examine exactly what was
1728 received.
1729
5dd9625b
PH
1730PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1731 commands, but it was not correctly comparing the address with the actual
1732 client host address. Thus, it would show the EHLO address in Received:
1733 header lines when this was not necessary.
1734
5591031b
PH
1735PH/27 Added the % operator to ${eval:}.
1736
ba18e66a
PH
1737PH/28 Exim tries to create and chdir to its spool directory when it starts;
1738 it should be ignoring failures (because with -C, for example, it has lost
1739 privilege). It wasn't ignoring creation failures other than "already
1740 exists".
1741
9cec981f
PH
1742PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1743 -bV or -d is used.
1744
aa2b5c79
PH
1745PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1746 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1747 too many continuations, the temporary file was not being removed, and the
1748 return code was incorrect.
aa2b5c79 1749
48a53b7f
PH
1750PH/31 Missing "BOOL" in function definition in filtertest.c.
1751
1c59d63b
PH
1752PH/32 Applied Sieve patches from the maintainer.
1753
671012da
TK
1754TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1755
1509d3a8
PH
1756PH/33 Added "verify = not_blind".
1757
1758PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1759 Local/Makefile (with some defaults set). These are used in built scripts
1760 such as exicyclog, but they have never been used in the exim_install
1761 script (though there are many overriding facilities there). I have
1762 arranged that the exim_install script now takes note of these two
1763 settings.
1764
1765PH/35 Installed configuration files for Dragonfly.
1766
2fe1a124
PH
1767PH/36 When a locally submitted message by a trusted user did not contain a
1768 From: header, and the sender address was obtained from -f or from an SMTP
1769 MAIL command, and the trusted user did not use -F to supply a sender
1770 name, $originator_name was incorrectly used when constructing a From:
1771 header. Furthermore, $originator_name was used for submission mode
1772 messages from external hosts without From: headers in a similar way,
1773 which is clearly wrong.
1774
8800895a
PH
1775PH/37 Added control=suppress_local_fixups.
1776
ccfdb010
PH
1777PH/38 When log_selector = +received_sender was set, and the addition of the
1778 sender made the log line's construction buffer exactly full, or one byte
1779 less than full, an overflow happened when the terminating "\n" was
1780 subsequently added.
1781
1130bfb0
PH
1782PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1783 when the result of a list match is failure because a DNS lookup failed.
1784
ebcb507f
PH
1785PH/40 RM_COMMAND is now used in the building process.
1786
c35e155c
PH
1787PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1788 the "build-* directories that it finds.
1789
95d1f782
PH
1790PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1791 address in a domain literal was a prefix of an interface address.
1792
fd6de02e
PH
1793PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1794 when verifying a sender address, unless rewrite_headers is false.
1795
58de37c5
PH
1796PH/44 Wrote a long comment about why errors_to addresses are verified as
1797 recipients, not senders.
1798
261cf466
TF
1799TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1800 the ratelimit ACL was added.
1801
3ee512ff
PH
1802PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1803
e08c430f
PH
1804PH/46 Added extra information about PostgreSQL errors to the error string.
1805
bef5a11f
PH
1806PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1807 avoiding the need to install special zones in a real server. This is
1808 backwards compatible; if it can't find the fake resolver, it drops back.
1809 Thus, both old and new test suites can be run.
1810
7546de58
TF
1811TF/02 Added util/ratelimit.pl
1812
e5d5a95f
TF
1813TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1814 clock is set back in time.
1815
2e88a017
TF
1816TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1817 Candler <B.Candler@pobox.com>.
1818
a5f65aa4
TF
1819TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1820 OK for addresses that are the result of redirections.
1821
e7726cbf
PH
1822PH/48 A number of further additions for the benefit of the new test suite,
1823 including a fake gethostbyname() that interfaces to the fake DNS resolver
1824 (see PH/47 above).
1825
a7fdad5b
TF
1826TF/06 The fix for widen_domains has also been applied to qualify_single and
1827 search_parents which are the other dnslookup options that can cause
1828 header rewrites.
1829
6af56900
PH
1830PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1831 type ("H").
1832
0925ede6
PH
1833PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1834
66afa403
TF
1835TF/07 Exim produced the error message "an SRV record indicated no SMTP
1836 service" if it encountered an MX record with an empty target hostname.
1837 The message is now "an MX or SRV record indicated no SMTP service".
1838
0154e85a
TF
1839TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1840 if the DNS of the sending site is misconfigured. This is quite a
1841 common situation. This change restores the behaviour of treating a
1842 helo verification defer as a failure.
1843
16f12c76
PH
1844PH/51 If self=fail was set on a router, the bounce message did not include the
1845 actual error message.
1846
bbe902f0 1847
e5a9dba6
PH
1848Exim version 4.52
1849-----------------
1850
1851TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1852
22c3b60b
PH
1853PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1854 command itself ended in error, the underlying message about the transport
1855 filter timeout was being overwritten with the pipe command error. Now the
1856 underlying error message should be appended to the second error message.
1857
06a9b4b5
PH
1858TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1859
c1ac6996
PH
1860PH/02 Reduce the amount of output that "make" produces by default. Full output
1861 can still be requested.
1862
9c7a242c
PH
1863PH/03 The warning log line about a condition test deferring for a "warn" verb
1864 was being output only once per connection, rather than after each
1865 occurrence (because it was using the same function as for successful
1866 "warn" verbs). This seems wrong, so I have changed it.
1867
87ba3f5f
PH
1868TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1869 it should not have, which might have caused a crash in the right
1870 circumstances, but probably never did.
1871
1872PH/04 Installed a modified version of Tony Finch's patch to make submission
1873 mode fix the return path as well as the Sender: header line, and to
1874 add a /name= option so that you can make the user's friendly name appear
1875 in the header line.
1876
29aba418
TF
1877TF/03 Added the control = fakedefer ACL modifier.
1878
fe0dab11
TF
1879TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1880 Mark Lowes for thorough testing.
870f6ba8 1881
11d337a4
TK
1882TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1883
1884TK/03 Merged latest SRS patch from Miles Wilton.
1885
415c8f3b
PH
1886PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1887 with the definition in sysexits.h (which is #included earlier).
1888 Fortunately, Exim does not actually use EX_OK. The code used to try to
1889 preserve the sysexits.h value, by assumimg that macro definitions were
1890 scanned for macro replacements. I have been disabused of this notion,
1891 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1892
958541e9
PH
1893PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1894 in the smtp transport. When a block could not be written in a single
1895 write() function, the timeout was being re-applied to each part-write.
1896 This seems wrong - if the receiver was accepting one byte at a time it
1897 would take for ever. The timeout is now adjusted when this happens. It
1898 doesn't have to be particularly precise.
1899
c206415f
TK
1900TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1901 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1902
2a4be8f9
PH
1903PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1904 without a domain if the check to <postmaster@domain> fails.
1905
1cba11c5
SC
1906SC/01 Eximstats: added -xls and the ability to specify output files
1907 (patch written by Frank Heydlauf).
1908
1909SC/02 Eximstats: use FileHandles for outputing results.
1910
1911SC/03 Eximstats: allow any combination of xls, txt, and html output.
1912
1913SC/04 Eximstats: fixed display of large numbers with -nvr option
1914
1915SC/05 Eximstats: fixed merging of reports with empty tables.
1916
1917SC/06 Eximstats: added the -include_original_destination flag
1918
1919SC/07 Eximstats: removed tabs and trailing whitespace.
1920
1005d00e
TK
1921TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1922
1923TK/06 MBOX spool code: Add real "From " MBOX separator line
1924 so the .eml file is really in mbox format (even though
1925 most programs do not really care). Patch from Alex Miller.
1926
1927TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1928 The latter is generated from $received_to and is only set if the
1929 message has one envelope recipient. SA can use these headers,
1930 obviously out-of-the-box. Patch from Alex Miller.
1931
9b4768fa
PH
1932PH/08 The ${def test on a variable was returning false if the variable's
1933 value was "0", contrary to what the specification has always said!
1934 The result should be true unless the variable is empty.
1935
1936PH/09 The syntax error of a character other than { following "${if
1937 def:variable_name" (after optional whitespace) was not being diagnosed.
1938 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1939 accidental colon was present, for example, could give incorrect results.
1940
0d7eb84a
PH
1941PH/10 Tidied the code in a number of places where the st_size field of a stat()
1942 result is used (not including appendfile, where other changes are about
1943 to be made).
1944
1945PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1946 This involved changing a lot of size variables from int to off_t. It
1947 should work with maildirs and everything.
1948
40727bee
TK
1949TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1950 spamd dying while we are connected to it.
1951
554d2369
TF
1952TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1953 <jgh@wizmail.org>
1954
1f922db1
PH
1955PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1956 function for BDB 4.3.
1957
ef213c3b
PH
1958PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1959
8ac170f3
PH
1960PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1961 the sources for PCRE have been re-arranged and more files are now
1962 involved.
1963
b1c749bb
PH
1964PH/15 The code I had for printing potentially long long variables in PH/11
1965 above was not the best (it lost precision). The length of off_t variables
1966 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1967 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1968 to be "long long int" or "long int". This is needed for the internal
1969 formatting function string_vformat().
b1c749bb 1970
4aac9b49
PH
1971PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1972 the configuration file to be ":syslog", then the script "guesses" where
1973 the logs files are, rather than using the compiled in default. In our
1974 case the guess is not the same as the compiled default, so the script
1975 suddenly stopped working when I started to use syslog. The patch checks
1976 to see if log_file_path is "". If so, it attempts to read it from exim
1977 with no configuration file to get the compiled in version, before it
1978 falls back to the previous guessing code."
1979
294520c8
TK
1980TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1981 implementing BATV in an Exim configuration. See NewStuff for the gory
1982 details.
1983
5bd022fe
PH
1984PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1985 Makefile that are specific to HP-UX.
1986
90e9ce59
PH
1987PH/18 If the "use_postmaster" option was set for a recipient callout together
1988 with the "random" option, the postmaster address was used as the MAIL
1989 FROM address for the random test, but not for the subsequent recipient
1990 test. It is now used for both.
1991
5ea81592
PH
1992PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1993 patch removes a few documentation additions to RFC 3028, because the
1994 latest draft now contains them. It adds the new en;ascii-case comparator
1995 and a new error check for 8bit text in MIME parts. Comparator and
1996 require names are now matched exactly. I enabled the subaddress
1997 extension, but it is not well tested yet (read: it works for me)."
1998
c6c2dc1d
PH
1999PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2000 rework some of the code of TK/09 above to avoid the hardwired use of
2001 "%lld" and "long long". Replaced the call to snprintf() with a call to
2002 string_vformat().
2003
fffffe4c
PH
2004PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2005 records point to non-existent hosts", "retry timeout exceeded", and
2006 "retry time not reached for any host after a long failure period".
ca02eafb 2007
9a26b6b2
PH
2008PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2009 experimental DomainKeys support:
2010
2011 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2012 (2) On an error such as an illegally used "control", the wrong name for
2013 the control was given.
2014
2015 These problems did NOT occur unless DomainKeys support was compiled.
2016
4aee0225
PH
2017PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2018
32d668a5
PH
2019PH/24 Added ${if match_ip condition.
2020
8187c3f3
PH
2021PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2022 databases so that it will be absolutely obvious if a crash occurs in the
2023 DB library. This is a regular occurrence (often caused by mis-matched
2024 db.h files).
2025
ff790e47 2026PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2027 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2028 picked up on a user's system that detects such things. There doesn't seem
2029 to be a gcc warning option for this - only an attribute that has to be
2030 put on the function's prototype. It seems that in Fedora Core 4 they have
2031 set this on a number of new functions. No doubt there will be more in due
2032 course.
ff790e47 2033
5417f6d1
PH
2034PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2035 specify a transport. However, if an address that was verified by such a
2036 router was the subject of a callout, Exim crashed because it tried to
2037 read the rcpt_include_affixes from the non-existent transport. Now it
2038 just assumes that the setting of that option is false. This bug was
2039 introduced by 4.51/PH/31.
2040
59cf8544
PH
2041PH/28 Changed -d+all to exclude +memory, because that information is very
2042 rarely of interest, but it makes the output a lot bigger. People tend to
2043 do -d+all out of habit.
2044
e7ad8a65
PH
2045PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2046 code in os-type was giving problems when libc.so lives in lib64, like on
2047 x86_64 Fedora Core.
2048
ade42478
PH
2049PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2050 aren't the modern standard, and it seems that some systems' include files
2051 don't always have them. Exim was already checking for some of the newer
2052 ones like T_AAAA, and defining it itself. I've added checks for all the
2053 record types that Exim uses.
2054
182ad5cf
PH
2055PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2056 not automatically generating a new one, as it is supposed to. This
2057 prevented TLS from working. If the file did exist, but contained invalid
2058 data, a new version was generated, as expected. It was only the case of a
2059 non-existent file that was broken.
2060
b0d9fc80
TK
2061TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2062 with a change in libdomainkeys > 0.64.
2063
2064TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2065 from DNS. If the selector record carries the flag, it now has
2066 precedence over the domain-wide flag.
2067
2068TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2069
47c7a64a
PH
2070PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2071 the use of a port name that isn't defined in /etc/services) occurred, the
2072 message was deferred as in a normal delivery, and thus remained on the
2073 spool, instead of being failed because of the mua_wrapper setting. This
2074 is now fixed, and I tidied up some of the mua_wrapper messages at the
2075 same time.
2076
a388bce4
SC
2077SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2078 the messages in a hash of arrays rather than using individual hashes.
2079 This is a bit cleaner and results in dramatic memory savings, albeit
2080 at a slight CPU cost.
2081
2082SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2083 as requested by Marc Sherman.
2084
2085SC/10 Eximstats: added histograms for user specified patterns as requested
2086 by Marc Sherman.
2087
0793e4ed
SC
2088SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2089
c58b88df
PH
2090PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2091 fopen() in the content-scanning modules that did not already have it.
2092
e7ad8a65 2093
7982096b
PH
2094Exim version 4.51
2095-----------------
2096
1a46a8c5
PH
2097TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2098 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2099
2f079f46 2100TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2101
2102TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2103
2104PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2105 to test Sieve filters that use "vacation".
2106
2107PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2108 that changes the way the GnuTLS parameters are stored in the cache file.
2109 The new format can be generated externally. For backward compatibility,
2110 if the data in the cache doesn't make sense, Exim assumes it has read an
2111 old-format file, and it generates new data and writes a new file. This
2112 means that you can't go back to an older release without removing the
2113 file.
2114
2115PH/03 A redirect router that has both "unseen" and "one_time" set does not
2116 work if there are any delivery delays because "one_time" forces the
2117 parent to be marked "delivered", so its unseen clone is never tried
2118 again. For this reason, Exim now forbids the simultaneous setting of
2119 these two options.
2120
2121PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2122 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2123 entry if you want to know the details. The fix, however, neglected to
2124 consider the case when local delivery batching is involved. The test for
2125 "previously delivered" was not happening when checking to see if an
2126 address could be batched with a previous (undelivered) one; under
2127 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2128 address.
1a46a8c5
PH
2129
2130PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2131 in its include files, and this causes problems building Exim.
2132
2133PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2134 header_syntax) but Exim was just ignoring anything given after a slash.
2135 In particular, this caused confusion with an attempt to use "verify =
2136 reverse_host_lookup/defer_ok". An error is now given when options are
2137 supplied for verify items that do not have them. (Maybe reverse_host_
2138 lookup should have a defer_ok option, but that's a different point.)
2139
2140PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2141 defined by RFC 821) to 2048, because there were problems with some AUTH
2142 commands, and RFC 1869 says the size should be increased for extended
2143 SMTP commands that take arguments.
2144
2145PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2146 Finch).
2147
2148PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2149 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2150
49c2d5ea
PH
2151PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2152 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2153 whatever). Otherwise the password may appear in the log. Following change
2154 PH/42 below, there is no longer a chance of it appearing in a bounce
2155 message.
49c2d5ea 2156
bf759a8b
PH
2157PH/11 Installed exipick version 20050225.0 from John Jetmore.
2158
83364d30
PH
2159PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2160 of its addresses was ever tried. (Bugzilla bug #2.)
2161
7999bbd7
PH
2162PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2163 the result incorrectly in the debug output. (It correctly added a newline
2164 to what was transported.)
2165
7dbf77c9
PH
2166TF/01 Added $received_time.
2167
74e0617f
PH
2168PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2169 commented out examples of how to interface to a virus scanner and to
2170 SpamAssassin. Also added commented examples of av_scanner and
2171 spamd_address settings.
2172
2f079f46
PH
2173PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2174 and controls are allowed in which ACLs. There were a couple of minor
2175 errors. Some of the entries in the conditions table (which is a table of
2176 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2177 negation of where the condition IS allowed.
2178
8c841523
PH
2179PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2180
7766a4f0
PH
2181PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2182 header file does not have a version number, so I've had to invent a new
2183 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2184 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2185 radiusclient), but it was contributed by a Radius user.
2186
8b417f2c
PH
2187PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2188 files or directories, for OpenSSL.
2189
901f42cb
PH
2190PH/19 When an Exim process that is running as root has to create an Exim log
2191 file, it does so in a subprocess that runs as exim:exim so as to get the
2192 ownership right at creation (otherwise, other Exim processes might see
2193 the file with the wrong ownership). There was no test for failure of this
2194 fork() call, which would lead to the process getting stuck as it waited
2195 for a non-existent subprocess. Forks do occasionally fail when resources
2196 run out. I reviewed all the other calls to fork(); they all seem to check
2197 for failure.
2198
f9b9210e
PH
2199PH/20 When checking for unexpected SMTP input at connect time (before writing
2200 the banner), Exim was not dealing correctly with a non-positive return
2201 from the read() function. If the client had disconnected by this time,
2202 the result was a log entry for a synchronization error with an empty
2203 string after "input=" when read() returned zero. If read() returned -1
2204 (an event I could not check), uninitialized data bytes were printed.
2205 There were reports of junk text (parts of files, etc) appearing after
2206 "input=".
2207
54cdb463
PH
2208PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2209
cf00dad6
PH
2210PH/22 Added support for macro redefinition, and (re)definition in between
2211 driver and ACL definitions.
2212
acb1b346
PH
2213PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2214 forgetting to use the resulting value; it was using the unexpanded value.
2215
c5ddb310
PH
2216PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2217 hadn't been configured. The fix is from Juergen Kreileder, who
2218 understands it better than I do:
2219
2220 "Here's what I see happening with three configured cyrus_sasl
2221 authenticators configured (plain, login, cram-md5):
2222
2223 On startup auth_cyrus_sasl_init() gets called for each of these.
2224 This means three calls to sasl_listmech() without a specified mech_list.
2225 => SASL tests which mechs of all available mechs actually work
2226 => three warnings about OTP not working
2227 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2228
2229 With the patch, sasl_listmech() also gets called three times. But now
2230 SASL's mech_list option is set to the server_mech specified in the the
2231 authenticator. Or in other words, the answer from sasl_listmech()
2232 gets limited to just the mech you're testing for (which is different
2233 for each call.)
2234 => the return list contains just 'plain' or 'login', 'cram-md5' or
2235 nothing depending on the value of ob->server_mech.
2236
2237 I've just tested the patch: Authentication still works fine,
2238 unavailable mechs specified in the exim configuration are still
2239 caught, and the auth.log warnings about OTP are gone."
2240
31619da6
PH
2241PH/25 When debugging is enabled, the contents of the command line are added
2242 to the debugging output, even when log_selector=+arguments is not
2243 specified.
2244
bebaf0fc
PH
2245PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2246 answer is "GNU", and only if the return is "GNU/something" is the answer
2247 "Linux".
2248
475fe28a
PH
2249PH/27 $acl_verify_message is now set immediately after the failure of a
2250 verification in an ACL, and so is available in subsequent modifiers. In
2251 particular, the message can be preserved by coding like this:
2252
2253 warn !verify = sender
2254 set acl_m0 = $acl_verify_message
2255
2256 Previously, $acl_verify_message was set only while expanding "message"
2257 and "log_message" when a very denied access.
2258
7e8bec7a
PH
2259PH/28 Modified OS/os.c-Linux with
2260
2261 -#ifndef OS_LOAD_AVERAGE
2262 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2263
2264 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2265 nomenclature these days.)
2266
e4a89c47
PH
2267PH/29 Installed patch from the Sieve maintainer that adds the options
2268 sieve_useraddress and sieve_subaddress to the redirect router.
2269
5ca2a9a1
PH
2270PH/30 In these circumstances:
2271 . Two addresses routed to the same list of hosts;
2272 . First host does not offer TLS;
2273 . First host accepts first address;
2274 . First host gives temporary error to second address;
2275 . Second host offers TLS and a TLS session is established;
2276 . Second host accepts second address.
2277 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2278 and peerdn, if requested) that were in fact used only for the second
2279 address.
7e8bec7a 2280
c688b954
PH
2281PH/31 When doing a callout as part of verifying an address, Exim was not paying
2282 attention to any local part prefix or suffix that was matched by the
2283 router that accepted the address. It now behaves in the same way as it
2284 does for delivery: the affixes are removed from the local part unless
2285 rcpt_include_affixes is set on the transport.
2286
fed77020
PH
2287PH/32 Add the sender address, as F=<...>, to the log line when logging a
2288 timeout during the DATA phase of an incoming message.
2289
7fe1560f
PH
2290PH/33 Sieve envelope tests were broken for match types other than :is. I have
2291 applied a patch sanctioned by the Sieve maintainer.
c688b954 2292
ebb6e6d5
PH
2293PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2294 the uid or gid is negative. A case of a negative gid caused this to be
2295 noticed. The fix allows for either to be negative.
2296
9c4e8f60
PH
2297PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2298 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2299 overlooked.
2300
2301PH/36 The change PH/12 above was broken. Fixed it.
2302
d7174846
PH
2303PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2304 the grounds that routing the same address twice would always produce the
2305 same answer. This might have been true once, but it is certainly no
2306 longer true now. Routing a child address may depend on the previous
2307 routing that produced that child. Some complicated redirection strategies
2308 went wrong when messages had multiple recipients, and made Exim's
2309 behaviour dependent on the order in which the addresses were given.
2310
2311 I have moved the duplicate checking until after the routing is complete.
2312 Exim scans the addresses that are assigned to local and remote
2313 transports, and removes any duplicates. This means that more work will be
2314 done, as duplicates will always all be routed, but duplicates are
2315 presumably rare, so I don't expect this is of any significance.
2316
2317 For deliveries to pipes, files, and autoreplies, the duplicate checking
2318 still happens during the routing process, since they are not going to be
2319 routed further.
2320
cfe75fc3
PH
2321PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2322 It corrects a timeout issue with spamd. This is Ian's comment: "The
2323 background is that sometimes spamd either never reads data from a
2324 connection it has accepted, or it never writes response data. The exiscan
2325 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2326 blindly assumes that writes won't block so it may never time out."
2327
be22d70e
PH
2328PH/39 Allow G after quota size as well as K and M.
2329
0612b098
PH
2330PH/40 The value set for $authenticated_id in an authenticator may not contain
2331 binary zeroes or newlines because the value is written to log lines and
2332 to spool files. There was no check on this. Now the value is run through
2333 the string_printing() function so that such characters are converted to
2334 printable escape sequences.
2335
2e0c1448
PH
2336PH/41 $message_linecount is a new variable that contains the total number of
2337 lines in the message. Compare $body_linecount, which is the count for the
2338 body only.
2339
447d236c
PH
2340PH/42 Exim no longer gives details of delivery errors for specific addresses in
2341 bounce and delay warning messages, except in certain special cases, which
2342 are as follows:
2343
2344 (a) An SMTP error message from a remote host;
2345 (b) A message specified in a :fail: redirection;
2346 (c) A message specified in a "fail" command in a system filter;
2347 (d) A message specified in a FAIL return from the queryprogram router;
2348 (e) A message specified by the cannot_route_message router option.
2349
2350 In these cases only, Exim does include the error details in bounce and
2351 warning messages. There are also a few cases where bland messages such
2352 as "unrouteable address" or "local delivery error" are given.
2353
d20976dc
PH
2354PH/43 $value is now also set for the "else" part of a ${run expansion.
2355
f656d135
PH
2356PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2357 being worked on, but at least Exim now implements the latest version to
2358 play with."
2359
2e2a30b4
PH
2360PH/45 In a pipe transport, although a timeout while waiting for the pipe
2361 process to complete was treated as a delivery failure, a timeout while
2362 writing the message to the pipe was logged, but erroneously treated as a
2363 successful delivery. Such timeouts include transport filter timeouts. For
2364 consistency with the overall process timeout, these timeouts are now
2365 treated as errors, giving rise to delivery failures by default. However,
2366 there is now a new Boolean option for the pipe transport called
2367 timeout_defer, which, if set TRUE, converts the failures into defers for
2368 both kinds of timeout. A transport filter timeout is now identified in
2369 the log output.
2370
9176e9f0
PH
2371PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2372 systems where "make" and "gmake" are different, calling "gmake" at top
2373 level broke things. I've arranged for the value of $(MAKE) to be passed
2374 from the Makefile to this script so that it can call the same version of
2375 "make".
2376
7982096b 2377
bbe902f0
PH
2378A note about Exim versions 4.44 and 4.50
2379----------------------------------------
2380
2381Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2382changes of various kinds. As a consequence, a big documentation update was
2383needed. This delayed the release for rather longer than seemed good, especially
2384in the light of a couple of (minor) security issues. Therefore, the changes
2385that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2386release. So 4.44 and 4.50 are in effect two different branches that both start
2387from 4.43.
2388
2389I have left the 4.50 change log unchanged; it contains all the changes since
23904.43. The change log for 4.44 is below; many of its items are identical to
2391those for 4.50. This seems to be the most sensible way to preserve the
2392historical information.
2393
2394
f7b63901 2395Exim version 4.50
495ae4b0
PH
2396-----------------
2397
5fe762f6
PH
2398 1. Minor wording change to the doc/README.SIEVE file.
2399
139059f6 2400 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2401 computation of the current number of files was incorrect.
495ae4b0 2402
7086e875
PH
2403 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2404 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2405 place.
2406
35af9f61
PH
2407 4. Give more explanation in the error message when the command for a transport
2408 filter fails to execute.
2409
b668c215
PH
2410 5. There are several places where Exim runs a non-Exim command in a
2411 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2412 was being done only for the command run by the queryprogram router. It is
2413 now done for all such subprocesses. The other cases are: ${run, transport
2414 filters, and the commands run by the lmtp and pipe transports.
2415
a494b1e1
PH
2416 6. Added CONFIGURE_GROUP build-time option.
2417
2418 7. Some older OS have a limit of 256 on the maximum number of file
2419 descriptors. Exim was using setrlimit() to set 1000 as a large value
2420 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2421 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2422
c5fcb476
PH
2423 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2424 was an oversight, and furthermore, ever since the addition of extra
2425 controls (e.g. 4.43/32), the checks on when to allow different forms of
2426 "control" were broken. There should now be diagnostics for all cases when a
2427 control that does not make sense is encountered.
2428
69358f02
PH
2429 9. Added the /retain_sender option to "control=submission".
2430
5be20824
PH
243110. $recipients is now available in the predata ACL (oversight).
2432
eb2c0248
PH
243311. Tidy the search cache before the fork to do a delivery from a message
2434 received from the command line. Otherwise the child will trigger a lookup
2435 failure and thereby defer the delivery if it tries to use (for example) a
2436 cached ldap connection that the parent has called unbind on.
2437
2a3eea10
PH
243812. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2439 of $address_data from the recipient verification was clobbered by the
2440 sender verification.
2441
244213. The value of address_data from a sender verification is now available in
2443 $sender_address_data in subsequent conditions in the ACL statement.
2444
23c7ff99
PH
244514. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2446
4deaf07d
PH
244715. Added a new option "connect=<time>" to callout options, to set a different
2448 connection timeout.
2449
926e1192
PH
245016. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2451 was its contents. (It was OK if the option was not defined at all.)
2452
650edc6f
PH
245317. A "Completed" log line is now written for messages that are removed from
2454 the spool by the -Mrm option.
2455
2c7db3f5
PH
245618. New variables $sender_verify_failure and $recipient_verify_failure contain
2457 information about exactly what failed.
2458
3d235903
PH
245919. Added -dd to debug only the daemon process.
2460
7c7ad977
PH
246120. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2462 handles timeouts, both on the server side and network timeouts. Renamed the
2463 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2464
981756db
PH
246521. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2466 It is now set to "smtps".
2467
d4eb88df
PH
246822. $host_address is now set to the target address during the checking of
2469 ignore_target_hosts.
2470
247123. When checking ignore_target_hosts for an ipliteral router, no host name was
2472 being passed; this would have caused $sender_host_name to have been used if
2473 matching the list had actually called for a host name (not very likely,
2474 since this list is usually IP addresses). A host name is now passed as
2475 "[x.x.x.x]".
2476
7d468ab8
PH
247724. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2478 code that specifies a non-restarting handler (typically sigaction() in
2479 modern systems) in an attempt to fix a rare and obscure crash bug.
2480
248125. Narrowed the window for a race in the daemon that could cause it to ignore
2482 SIGCHLD signals. This is not a major problem, because they are used only to
2483 wake it up if nothing else does.
2484
62c0818f
PH
248526. A malformed maildirsize file could cause Exim to calculate negative values
2486 for the mailbox size or file count. Odd effects could occur as a result.
2487 The maildirsize information is now recalculated if the size or filecount
2488 end up negative.
2489
26034054
PH
249027. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2491 support for a long time. Removed HAVE_SYS_VFS_H.
2492
af66f652
PH
249328. Installed the latest version of exipick from John Jetmore.
2494
90af77f4
PH
249529. In an address list, if the pattern was not a regular expression, an empty
2496 subject address (from a bounce message) matched only if the pattern was an
2497 empty string. Non-empty patterns were not even tested. This was the wrong
2498 because it is perfectly reasonable to use an empty address as part of a
2499 database query. An empty address is now tested by patterns that are
2500 lookups. However, all the other forms of pattern expect the subject to
2501 contain a local part and a domain, and therefore, for them, an empty
2502 address still always fails if the pattern is not itself empty.
2503
d8ef3577
PH
250430. Exim went into a mad DNS loop when attempting to do a callout where the
2505 host was specified on an smtp transport, and looking it up yielded more
2506 than one IP address.
2507
5cb8cbc6
PH
250831. Re-factored the code for checking spool and log partition space into a
2509 function that finds that data and another that does the check. The former
2510 is then used to implement four new variables: $spool_space, $log_space,
2511 $spool_inodes, and $log_inodes.
2512
14702f5b
PH
251332. The RFC2047 encoding function was originally intended for short strings
2514 such as real names; it was not keeping to the 75-character limit for
2515 encoded words that the RFC imposes. It now respects the limit, and
2516 generates multiple encoded words if necessary. To be on the safe side, I
2517 have increased the buffer size for the ${rfc2047: expansion operator from
2518 1024 to 2048 bytes.
2519
063b1e99
PH
252033. It is now permitted to omit both strings after an "if" condition; if the
2521 condition is true, the result is "true". As before, when the second string
2522 is omitted, a false condition yields an empty string. This makes it less
2523 cumbersome to write custom ACL and router conditions.
2524
652e1b65
PH
252534. Failure to deliver a bounce message always caused it to be frozen, even if
2526 there was an errors_to setting on the router. The errors_to setting is now
2527 respected.
2528
6f0c9a4f
PH
252935. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2530 canonical form (fully expanded) before being placed in
2531 $sender_host_address.
2532
33397d19
PH
253336. The table in the code that translates DNS record types into text (T_A to
2534 "A" for instance) was missing entries for NS and CNAME. It is just possible
2535 that this could have caused confusion if both these types were looked up
2536 for the same domain, because the text type is used as part of Exim's
2537 per-process caching. But the chance of anyone hitting this buglet seems
2538 very small.
2539
7bb56e1f
PH
254037. The dnsdb lookup has been extended in a number of ways.
2541
2542 (1) There is a new type, "zns", which walks up the domain tree until it
2543 finds some nameserver records. It should be used with care.
2544
ea3bc19b
PH
2545 (2) There is a new type, "mxh", which is like "mx" except that it returns
2546 just the host names, not the priorities.
2547
2548 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2549 looked up. The behaviour when one of the lookups defers can be
2550 controlled by a keyword.
7bb56e1f 2551
ea3bc19b 2552 (4) It is now possible to specify the separator character for use when
7bb56e1f 2553 multiple records are returned.
33397d19 2554
0bcb2a0e
PH
255538. The dnslists ACL condition has been extended: it is now possible to supply
2556 a list of IP addresses and/or domains to be looked up in a particular DNS
2557 domain.
2558
2ac0e484
PH
255939. Added log_selector=+queue_time_overall.
2560
4e1fde53
PH
256140. When running the queue in the test harness, wait just a tad after forking a
2562 delivery process, to get repeatability of debugging output.
2563
de365ded
PH
256441. Include certificate and key file names in error message when GnuTLS fails
2565 to set them up, because the GnuTLS error message doesn't include the name
2566 of the failing file when there is a problem reading it.
2567
f05da2e8
PH
256842. Allow both -bf and -bF in the same test run.
2569
d6453af2
PH
257043. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2571
f7b63901
PH
257244. The "Exiscan patch" is now merged into the mainline Exim source.
2573
257445. Sometimes the final signoff response after QUIT could fail to get
2575 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2576 < 0 before doing a fflush(). This bug looks as though it goes back to the
2577 introduction of TLS in release 3.20, but "sometimes" must have been rare
2578 because the tests only now provoked it.
2579
a444213a
PH
258046. Reset the locale to "C" after calling embedded Perl, in case it was changed
2581 (this can affect the format of dates).
2582
0ec020ea
PH
258347. exim_tidydb, when checking for the continued existence of a message for
2584 which it has found a message-specific retry record, was not finding
2585 messages that were in split spool directories. Consequently, it was
2586 deleting retry records that should have stayed in existence.
2587
b1206957
PH
258848. Steve fixed some bugs in eximstats.
2589
259049. The SPA authentication driver was not abandoning authentication and moving
2591 on to the next authenticator when an expansion was forced to fail,
2592 contradicting the general specification for all authenticators. Instead it
2593 was generating a temporary error. It now behaves as specified.
2594
26dd5a95
PH
259550. The default ordering of permitted cipher suites for GnuTLS was pessimal
2596 (the order specifies the preference for clients). The order is now AES256,
2597 AES128, 3DES, ARCFOUR128.
2598
343b2385
PH
259951. Small patch to Sieve code - explicitly set From: when generating an
2600 autoreply.
2601
1c5466b9
PH
260252. Exim crashed if a remote delivery caused a very long error message to be
2603 recorded - for instance if somebody sent an entire SpamAssassin report back
2604 as a large number of 550 error lines. This bug was coincidentally fixed by
2605 increasing the size of one of Exim's internal buffers (big_buffer) that
2606 happened as part of the Exiscan merge. However, to be on the safe side, I
2607 have made the code more robust (and fixed the comments that describe what
2608 is going on).
2609
55ee9ee3
PH
261053. Now that there can be additional text after "Completed" in log lines (if
2611 the queue_time_overall log selector is set), a one-byte patch to exigrep
2612 was needed to allow it to recognize "Completed" as not the last thing in
2613 the line.
2614
d38f8232
PH
261554. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2616 patch that reportedly fixes this has been added. I am not expert enough to
2617 create a test for it. This is what the patch creator wrote:
2618
2619 "I found a little strange behaviour of ldap code when working with
2620 Windows 2003 AD Domain, where users was placed in more than one
2621 Organization Units. When I tried to give exim partial DN, the exit code
2622 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2623 But simultaneously result of request was absolutely normal ldap result,
2624 so I produce this patch..."
2625
3295e65b
PH
2626 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2627 REFERENCE, so I have modified the code to exclude the patch when that macro
2628 is not defined.
2629
7102e136
PH
263055. Some experimental protocols are using DNS PTR records for new purposes. The
2631 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2632 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2633 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2634 CAN-2005-0021
7102e136 2635
3ca0ba97
PH
263656. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2637
c2bcbe20
PH
263857. Double the size of the debug message buffer (to 2048) so that more of very
2639 long debug lines gets shown.
2640
18ce445d
PH
264158. The exicyclog utility now does better if the number of log files to keep
2642 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2643
1f5b4c3d
PH
264459. Two changes related to the smtp_active_hostname option:
2645
2646 (1) $smtp_active_hostname is now available as a variable.
2647 (2) The default for smtp_banner uses $smtp_active_hostname instead
2648 of $primary_hostname.
2649
b975ba52
PH
265060. The host_aton() function is supposed to be passed a string that is known
2651 to be a valid IP address. However, in the case of IPv6 addresses, it was
2652 not checking this. This is a hostage to fortune. Exim now panics and dies
2653 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2654 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2655 components; fortuitously, this particular loophole had already been fixed
2656 by change 4.50/55 above.
2657
2658 If there are any other similar loopholes, the new check in host_aton()
2659 itself should stop them being exploited. The report I received stated that
2660 data on the command line could provoke the exploit when Exim was running as
2661 exim, but did not say which command line option was involved. All I could
2662 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2663 running as the user.
ea3a6f44 2664 CAN-2005-0021
85b87bc2
PH
2665
266661. There was a buffer overflow vulnerability in the SPA authentication code
2667 (which came originally from the Samba project). I have added a test to the
2668 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2669 CAN-2005-0022
b975ba52 2670
17ffcae7
PH
267162. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2672 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2673
d95f9fdb
PH
267463. The daemon start-up calls getloadavg() while still root for those OS that
2675 need the first call to be done as root, but it missed one case: when
2676 deliver_queue_load_max is set with deliver_drop_privilege. This is
2677 necessary for the benefit of the queue runner, because there is no re-exec
2678 when deliver_drop_privilege is set.
2679
86b8287f
PH
268064. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2681 This has been fixed.
2682
60dc5e56
PH
268365. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2684 was in use, was not putting the data itself into the right store pool;
2685 consequently, it could be overwritten for a subsequent message in the same
2686 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2687 the caching.)
2688
533244af
PH
268966. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2690
a5a28604
PH
269167. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2692 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2693 the function were treating the return as a boolean value, which happened to
2694 work because 0=false and not-0=true, but is not correct code.
2695
7e634d24
PH
269668. The host_aton() function was not handling scoped IPv6 addresses (those
2697 with, for example, "%eth0" on the end) correctly.
2698
3e11c26b
PH
269969. Fixed some compiler warnings in acl.c for the bitmaps specified with
2700 negated items (that is, ~something) in unsigned ints. Some compilers
2701 apparently mutter when there is no cast.
2702
6729cf78
PH
270370. If an address verification called from an ACL failed, and did not produce a
2704 user-specific message (i.e. there was only a "system" message), nothing was
2705 put in $acl_verify_message. In this situation, it now puts the system
2706 message there.
2707
00f00ca5
PH
270871. Change 4.23/11 added synchronization checking at the start of an SMTP
2709 session; change 4.31/43 added the unwanted input to the log line - except
2710 that it did not do this in the start of session case. It now does.
2711
c9bdd01c
PH
271272. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2713 This is wrong and can cause the other end to generate a synchronization
2714 error if it is another Exim or anything else that does the synchronization
2715 check. A QUIT command is no longer sent after a timeout.
2716
d43194df
PH
271773. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2718 during host lookups.
2719
fe5b5d0b
PH
272074. The defer_ok option of callout verification was not working if it was used
2721 when verifying addresses in header lines, that is, for this case:
2722
2723 verify = header_sender/callout=defer_ok
2724
76a2d7ba
PH
272575. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2726 those file descriptors could be used for SMTP connections. If anything
2727 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2728 could be sent to the SMTP client, causing chaos. The daemon now opens
2729 stdin, stdout, and stderr to /dev/null when it puts itself into the
2730 background.
2731
273276. Arrange for output from Perl's "warn" command to be written to Exim's main
2733 log by default. The user can override this with suitable Perl magic.
2734
04f7d5b9
PH
273577. The use of log_message on a "discard" ACL verb, which is supposed to add to
2736 the log message when discard triggers, was not working for the DATA ACL or
2737 for the non-SMTP ACL.
2738
bc60667e
PH
273978. Error message wording change in sieve.c.
2740
bb6e88ff
PH
274179. If smtp_accept_max_per_host was set, the number of connections could be
2742 restricted to fewer than expected, because the daemon was trying to set up
2743 a new connection before checking whether the processes handling previous
2744 connections had finished. The check for completed processes is now done
2745 earlier. On busy systems, this bug wouldn't be noticed because something
2746 else would have woken the daemon, and it would have reaped the completed
2747 process earlier.
2748
1e70f85b
PH
274980. If a message was submitted locally by a user whose login name contained one
2750 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2751 It caused a spool format error. I have fixed the spool reading code. A
2752 related problem was that the "from" clause in the Received: line became
2753 illegal because of the space(s). It is now covered by ${quote_local_part.
2754
275581. Included the latest eximstats from Steve (adds average sizes to HTML Top
2756 tables).
2757
4e01f9d6
PH
275882. Updated OS/Makefile-AIX as per message from Mike Meredith.
2759
1ee1cef2
PH
276083. Patch from Sieve maintainer to fix unterminated string problem in
2761 "vacation" handling.
2762
6e2b4ccc
PH
276384. Some minor changes to the Linux configuration files to help with other
2764 OS variants using glibc.
2765
8e669ac1
PH
276685. One more patch for Sieve to update vacation handling to latest spec.
2767
495ae4b0 2768
bbe902f0
PH
2769----------------------------------------------------
2770See the note above about the 4.44 and 4.50 releases.
2771----------------------------------------------------
2772
2773
2774Exim version 4.44
2775-----------------
2776
2777 1. Change 4.43/35 introduced a bug that caused file counts to be
2778 incorrectly computed when quota_filecount was set in an appendfile
2779 transport
2780
2781 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2782 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2783 place.
2784
2785 3. Give more explanation in the error message when the command for a transport
2786 filter fails to execute.
2787
2788 4. There are several places where Exim runs a non-Exim command in a
2789 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2790 was being done only for the command run by the queryprogram router. It is
2791 now done for all such subprocesses. The other cases are: ${run, transport
2792 filters, and the commands run by the lmtp and pipe transports.
2793
2794 5. Some older OS have a limit of 256 on the maximum number of file
2795 descriptors. Exim was using setrlimit() to set 1000 as a large value
2796 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2797 systems. I've change it so that if it can't get 1000, it tries for 256.
2798
2799 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2800 was an oversight, and furthermore, ever since the addition of extra
2801 controls (e.g. 4.43/32), the checks on when to allow different forms of
2802 "control" were broken. There should now be diagnostics for all cases when a
2803 control that does not make sense is encountered.
2804
2805 7. $recipients is now available in the predata ACL (oversight).
2806
2807 8. Tidy the search cache before the fork to do a delivery from a message
2808 received from the command line. Otherwise the child will trigger a lookup
2809 failure and thereby defer the delivery if it tries to use (for example) a
2810 cached ldap connection that the parent has called unbind on.
2811
2812 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2813 of $address_data from the recipient verification was clobbered by the
2814 sender verification.
2815
281610. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2817 was its contents. (It was OK if the option was not defined at all.)
2818
281911. A "Completed" log line is now written for messages that are removed from
2820 the spool by the -Mrm option.
2821
282212. $host_address is now set to the target address during the checking of
2823 ignore_target_hosts.
2824
282513. When checking ignore_target_hosts for an ipliteral router, no host name was
2826 being passed; this would have caused $sender_host_name to have been used if
2827 matching the list had actually called for a host name (not very likely,
2828 since this list is usually IP addresses). A host name is now passed as
2829 "[x.x.x.x]".
2830
283114. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2832 code that specifies a non-restarting handler (typically sigaction() in
2833 modern systems) in an attempt to fix a rare and obscure crash bug.
2834
283515. Narrowed the window for a race in the daemon that could cause it to ignore
2836 SIGCHLD signals. This is not a major problem, because they are used only to
2837 wake it up if nothing else does.
2838
283916. A malformed maildirsize file could cause Exim to calculate negative values
2840 for the mailbox size or file count. Odd effects could occur as a result.
2841 The maildirsize information is now recalculated if the size or filecount
2842 end up negative.
2843
284417. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2845 support for a long time. Removed HAVE_SYS_VFS_H.
2846
ea3a6f44 284718. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2848
284919. Allow an empty sender to be matched against a lookup in an address list.
2850 Previously the only cases considered were a regular expression, or an
2851 empty pattern.
2852
285320. Exim went into a mad DNS lookup loop when doing a callout where the
2854 host was specified on the transport, if the DNS lookup yielded more than
2855 one IP address.
2856
ea3a6f44
NM
285721. The RFC2047 encoding function was originally intended for short strings
2858 such as real names; it was not keeping to the 75-character limit for
2859 encoded words that the RFC imposes. It now respects the limit, and
2860 generates multiple encoded words if necessary. To be on the safe side, I
2861 have increased the buffer size for the ${rfc2047: expansion operator from
2862 1024 to 2048 bytes.
bbe902f0 2863
ea3a6f44
NM
286422. Failure to deliver a bounce message always caused it to be frozen, even if
2865 there was an errors_to setting on the router. The errors_to setting is now
2866 respected.
bbe902f0
PH
2867
286823. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2869 canonical form (fully expanded) before being placed in
2870 $sender_host_address.
2871
287224. Updated eximstats to version 1.33
2873
ea3a6f44
NM
287425. Include certificate and key file names in error message when GnuTLS fails
2875 to set them up, because the GnuTLS error message doesn't include the name
2876 of the failing file when there is a problem reading it.
bbe902f0
PH
2877
287826. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2879 As per change 25.
bbe902f0 2880
ea3a6f44
NM
288127. Reset the locale to "C" after calling embedded Perl, in case it was changed
2882 (this can affect the format of dates).
bbe902f0 2883
ea3a6f44
NM
288428. exim_tidydb, when checking for the continued existence of a message for
2885 which it has found a message-specific retry record, was not finding
2886 messages that were in split spool directories. Consequently, it was
2887 deleting retry records that should have stayed in existence.
bbe902f0
PH
2888
288929. eximstats updated to version 1.35
2890 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2891 1.35 - bugfix such that pie charts by volume are generated correctly
2892
ea3a6f44
NM
289330. The SPA authentication driver was not abandoning authentication and moving
2894 on to the next authenticator when an expansion was forced to fail,
2895 contradicting the general specification for all authenticators. Instead it
2896 was generating a temporary error. It now behaves as specified.
bbe902f0 2897
ea3a6f44
NM
289831. The default ordering of permitted cipher suites for GnuTLS was pessimal
2899 (the order specifies the preference for clients). The order is now AES256,
2900 AES128, 3DES, ARCFOUR128.
bbe902f0 2901
ea3a6f44
NM
290231. Small patch to Sieve code - explicitly set From: when generating an
2903 autoreply.
bbe902f0 2904
ea3a6f44
NM
290532. Exim crashed if a remote delivery caused a very long error message to be
2906 recorded - for instance if somebody sent an entire SpamAssassin report back
2907 as a large number of 550 error lines. This bug was coincidentally fixed by
2908 increasing the size of one of Exim's internal buffers (big_buffer) that
2909 happened as part of the Exiscan merge. However, to be on the safe side, I
2910 have made the code more robust (and fixed the comments that describe what
2911 is going on).
bbe902f0 2912
ea3a6f44
NM
291333. Some experimental protocols are using DNS PTR records for new purposes. The
2914 keys for these records are domain names, not reversed IP addresses. The
2915 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2916 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2917 CAN-2005-0021
2918
ea3a6f44
NM
291934. The host_aton() function is supposed to be passed a string that is known
2920 to be a valid IP address. However, in the case of IPv6 addresses, it was
2921 not checking this. This is a hostage to fortune. Exim now panics and dies
2922 if the condition is not met. A case was found where this could be provoked
2923 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2924 components; fortuitously, this particular loophole had already been fixed
2925 by change 4.50/55 or 4.44/33 above.
2926
2927 If there are any other similar loopholes, the new check in host_aton()
2928 itself should stop them being exploited. The report I received stated that
2929 data on the command line could provoke the exploit when Exim was running as
2930 exim, but did not say which command line option was involved. All I could
2931 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2932 running as the user.
bbe902f0
PH
2933 CAN-2005-0021
2934
ea3a6f44
NM
293535. There was a buffer overflow vulnerability in the SPA authentication code
2936 (which came originally from the Samba project). I have added a test to the
2937 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2938 CAN-2005-0022
2939
ea3a6f44
NM
294036. The daemon start-up calls getloadavg() while still root for those OS that
2941 need the first call to be done as root, but it missed one case: when
2942 deliver_queue_load_max is set with deliver_drop_privilege. This is
2943 necessary for the benefit of the queue runner, because there is no re-exec
2944 when deliver_drop_privilege is set.
bbe902f0 2945
ea3a6f44
NM
294637. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2947 was in use, was not putting the data itself into the right store pool;
2948 consequently, it could be overwritten for a subsequent message in the same
2949 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2950 the caching.)
bbe902f0 2951
ea3a6f44
NM
295238. Sometimes the final signoff response after QUIT could fail to get
2953 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2954 < 0 before doing a fflush(). This bug looks as though it goes back to the
2955 introduction of TLS in release 3.20, but "sometimes" must have been rare
2956 because the tests only now provoked it.
bbe902f0
PH
2957
2958
495ae4b0
PH
2959Exim version 4.43
2960-----------------
2961
2962 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2963 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2964 Now it returns an integer. A number of calls were still expecting a T/F
2965 return. Fortuitously, in all cases, the tests worked in OK situations,
2966 which is the norm. However, things would have gone wrong on any write
2967 failures on the smtp file descriptor. This function is used when sending
2968 messages over SMTP and also when doing verify callouts.
2969
2970 2. When Exim is called to do synchronous delivery of a locally submitted
2971 message (the -odf or -odi options), it no longer closes stderr before doing
2972 the delivery.
2973
2974 3. Implemented the mua_wrapper option.
2975
2976 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2977
2978 5. Implemented the functions header_remove(), header_testname(),
2979 header_add_at_position(), and receive_remove_recipient(), and exported them
2980 to local_scan().
2981
2982 6. If an ACL "warn" statement specified the addition of headers, Exim already
2983 inserted X-ACL-Warn: at the start if there was no header name. However, it
2984 was not making this test for the second and subsequent header lines if
2985 there were newlines in the string. This meant that an invalid header could
2986 be inserted if Exim was badly configured.
2987
2988 7. Allow an ACL "warn" statement to add header lines at the start or after all
2989 the Received: headers, as well as at the end.
2990
2991 8. Added the rcpt_4xx retry error code.
2992
2993 9. Added postmaster_mailfrom=xxx to callout verification option.
2994
299510. Added mailfrom=xxxx to the callout verification option, for verify=
2996 header_sender only.
2997
299811. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2999 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3000
300112. Inserted some casts to stop certain compilers warning when using pointer
3002 differences as field lengths or precisions in printf-type calls (mostly
3003 affecting debugging statements).
3004
300513. Added optional readline() support for -be (dynamically loaded).
3006
300714. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3008 same clock tick as a message's arrival, so that its received time was the
3009 same as the "first fail" time on the retry record, and that message
3010 remained on the queue past the ultimate address timeout, every queue runner
3011 would try a delivery (because it was past the ultimate address timeout) but
3012 after another failure, the ultimate address timeout, which should have then
3013 bounced the address, did not kick in. This was a "< instead of <=" error;
3014 in most cases the first failure would have been in the next clock tick
3015 after the received time, and all would be well.
3016
301715. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3018 being recognized when the domain list was tested by the match_domain
3019 condition in an expansion string.
3020
302116. Added the ${str2b64: operator.
3022
302317. Exim was always calling setrlimit() to set a large limit for the number of
3024 processes, without checking whether the existing limit was already
3025 adequate. (It did check for the limit on file descriptors.) Furthermore,
3026 errors from getrlimit() and setrlimit() were being ignored. Now they are
3027 logged to the main and panic logs, but Exim does carry on, to try to do its
3028 job under whatever limits there are.
3029
303018. Imported PCRE 5.0.
3031
303219. Trivial typo in log message " temporarily refused connection" (the leading
3033 space).
3034
303520. If the log selector return_path_on_delivery was set and an address was
3036 redirected to /dev/null, the delivery process crashed because it assumed
3037 that a return path would always be set for a "successful" delivery. In this
3038 case, the whole delivery is bypassed as an optimization, and therefore no
3039 return path is set.
3040
304121. Internal re-arrangement: the function for sending a challenge and reading
3042 a response while authentication was assuming a zero-terminated challenge
3043 string. It's now changed to take a pointer and a length, to allow for
3044 binary data in such strings.
3045
304622. Added the cyrus_sasl authenticator (code supplied by MBM).
3047
304823. Exim was not respecting finduser_retries when seeking the login of the
3049 uid under which it was called; it was always trying 10 times. (The default
3050 setting of finduser_retries is zero.) Also, it was sleeping after the final
3051 failure, which is pointless.
3052
305324. Implemented tls_on_connect_ports.
3054
305525. Implemented acl_smtp_predata.
3056
305726. If the domain in control=submission is set empty, Exim assumes that the
3058 authenticated id is a complete email address when it generates From: or
3059 Sender: header lines.
3060
306127. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3062 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3063 chown and chgrp in /bin and hostname in /usr/bin.
3064
306528. Exim was keeping the "process log" file open after each use, just as it
3066 does for the main log. This opens the possibility of it remaining open for
3067 long periods when the USR1 signal hits a daemon. Occasional processlog
3068 errors were reported, that could have been caused by this. Anyway, it seems
3069 much more sensible not to leave this file open at all, so that is what now
3070 happens.
3071
307229. The long-running daemon process does not normally write to the log once it
3073 has entered its main loop, and it closes the log before doing so. This is
3074 so that log files can straightforwardly be renamed and moved. However,
3075 there are a couple of unusual error situations where the daemon does write
3076 log entries, and I had neglected to close the log afterwards.
3077
307830. The text of an SMTP error response that was received during a remote
3079 delivery was being truncated at 512 bytes. This is too short for some of
3080 the long messages that one sometimes sees. I've increased the limit to
3081 1024.
3082
308331. It is now possible to make retry rules that apply only when a message has a
3084 specific sender, in particular, an empty sender.
3085
308632. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3087 it possible to be selective about when SMTP synchronization is enforced.
3088
308933. Added "control = caseful_local_part" and "control = "caselower_local_part".
3090
309132. Implemented hosts_connection_nolog.
3092
309333. Added an ACL for QUIT.
3094
309534. Setting "delay_warning=" to disable warnings was not working; it gave a
3096 syntax error.
3097
309835. Added mailbox_size and mailbox_filecount to appendfile.
3099
310036. Added control = no_multiline_responses to ACLs.
3101
310237. There was a bug in the logic of the code that waits for the clock to tick
3103 in the case where the clock went backwards by a substantial amount such
3104 that the microsecond fraction of "now" was more than the microsecond
3105 fraction of "then" (but the whole seconds number was less).
3106
310738. Added support for the libradius Radius client library this is found on
3108 FreeBSD (previously only the radiusclient library was supported).
3109
3110
3111Exim version 4.42
3112-----------------
3113
3114 1. When certain lookups returned multiple values in the form name=value, the
3115 quoting of the values was not always being done properly. Specifically:
3116 (a) If the value started with a double quote, but contained no whitespace,
3117 it was not quoted.
3118 (b) If the value contained whitespace other than a space character (i.e.
3119 tabs or newlines or carriage returns) it was not quoted.
3120 This fix has been applied to the mysql and pgsql lookups by writing a
3121 separate quoting function and calling it from the lookup code. The fix
3122 should probably also be applied to nisplus, ibase and oracle lookups, but
3123 since I cannot test any of those, I have not disturbed their existing code.
3124
3125 2. A hit in the callout cache for a specific address caused a log line with no
3126 reason for rejecting RCPT. Now it says "Previous (cached) callout
3127 verification failure".
3128
3129 3. There was an off-by-one bug in the queryprogram router. An over-long
3130 return line was truncated at 256 instead of 255 characters, thereby
3131 overflowing its buffer with the terminating zero. As well as fixing this, I
3132 have increased the buffer size to 1024 (and made a note to document this).
3133
3134 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3135 when Exim is waiting for an SMTP response from a remote server, Exim
3136 restarts its select() call on the socket, thereby resetting its timeout.
3137 This is not a problem when such interrupts are rare. Somebody set up a cron
3138 job to run exiwhat every 2 minutes, which is less than the normal select()
3139 timeout (5 or 10 minutes). This meant that the select() timeout never
3140 kicked in because it was always reset. I have fixed this by comparing the
3141 time when an interrupt arrives with the time at the start of the first call
3142 to select(). If more time than the timeout has elapsed, the interrupt is
3143 treated as a timeout.
3144
3145 5. Some internal re-factoring in preparation for the addition of Sieve
3146 extensions (by MH). In particular, the "personal" test is moved to a
3147 separate function, and given an option for scanning Cc: and Bcc: (which is
3148 not set for Exim filters).
3149
3150 6. When Exim created an email address using the login of the caller as the
3151 local part (e.g. when creating a From: or Sender: header line), it was not
3152 quoting the local part when it contained special characters such as @.
3153
3154 7. Installed new OpenBSD configuration files.
3155
3156 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3157 try to make them clearer.
3158
3159 9. Callout options, other than the timeout value, were being ignored when
3160 verifying sender addresses in header lines. For example, when using
3161
3162 verify = header_sender/callout=no_cache
3163
3164 the cache was (incorrectly) being used.
3165
316610. Added a missing instance of ${EXE} to the exim_install script; this affects
3167 only the Cygwin environment.
3168
316911. When return_path_on_delivery was set as a log selector, if different remote
3170 addresses in the same message used different return paths and parallel
3171 remote delivery occurred, the wrong values would sometimes be logged.
3172 (Whenever a remote delivery process finished, the return path value from
3173 the most recently started remote delivery process was logged.)
3174
317512. RFC 3848 specifies standard names for the "with" phrase in Received: header
3176 lines when AUTH and/or TLS are in use. This is the "received protocol"
3177 field. Exim used to use "asmtp" for authenticated SMTP, without any
3178 indication (in the protocol name) for TLS use. Now it follows the RFC and
3179 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3180 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3181 names appear in log lines as well as in Received: header lines.
3182
318313. Installed MH's patches for Sieve to add the "copy" and "vacation"
3184 extensions, and comparison tests, and to fix some bugs.
3185
318614. Changes to the "personal" filter test:
3187
3188 (1) The test was buggy in that it was just doing the equivalent of
3189 "contains" tests on header lines. For example, if a user's address was
3190 anne@some.where, the "personal" test would incorrectly be true for
3191
3192 To: susanne@some.where
3193
3194 This test is now done by extracting each address from the header in turn,
3195 and checking the entire address. Other tests that are part of "personal"
3196 are now done using regular expressions (for example, to check local parts
3197 of addresses in From: header lines).
3198
3199 (2) The list of non-personal local parts in From: addresses has been
3200 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3201 taken from the Sieve specification recommendations.
3202
3203 (3) If the message contains any header line starting with "List-" it is
3204 treated as non-personal.
3205
3206 (4) The test for "circular" in the Subject: header line has been removed
3207 because it now seems ill-conceived.
3208
320915. Minor typos in src/EDITME comments corrected.
3210
321116. Installed latest exipick from John Jetmore.
3212
321317. If headers_add on a router specified a text string that was too long for
3214 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3215 of string_sprintf() is now avoided.
3216
321718. $message_body_size was not set (it was always zero) when running the DATA
3218 ACL and the local_scan() function.
3219
322019. For the "mail" command in an Exim filter, no default was being set for
3221 the once_repeat time, causing a random time value to be used if "once" was
3222 specified. (If the value happened to be <= 0, no repeat happened.) The
3223 default is now 0s, meaning "never repeat". The "vacation" command was OK
3224 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3225 (I found it when inspecting the code).
3226
322720. There is now an overall timeout for performing a callout verification. It
3228 defaults to 4 times the callout timeout, which applies to individual SMTP
3229 commands during the callout. The overall timeout applies when there is more
3230 than one host that can be tried. The timeout is checked before trying the
3231 next host. This prevents very long delays if there are a large number of
3232 hosts and all are timing out (e.g. when the network connections are timing
3233 out). The value of the overall timeout can be changed by specifying an
3234 additional sub-option for "callout", called "maxwait". For example:
3235
3236 verify = sender/callout=5s,maxwait=20s
3237
323821. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3239 to the end before writing, but this should make it even safer).
3240
324122. Exim was forgetting that it had advertised PIPELINING for the second and
3242 subsequent messages on an SMTP connection. It was also not resetting its
3243 memory on STARTTLS and an internal HELO.
3244
324523. When Exim logs an SMTP synchronization error within a session, it now
3246 records whether PIPELINING has been advertised or not.
3247
324824. Added 3 instances of "(long int)" casts to time_t variables that were being
3249 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3250 rather than long int.
3251
325225. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3253
325426. Added the never_mail option to autoreply.
3255
3256
3257Exim version 4.41
3258-----------------
3259
3260 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3261 crash if the getsockname() call failed; this can happen if a connection is
3262 closed very soon after it is established. The problem was simply in the
3263 order in which certain operations were done, causing Exim to try to write
3264 to the SMTP stream before it had set up the file descriptor. The bug has
3265 been fixed by making things happen in the correct order.
3266
3267
3268Exim version 4.40
3269-----------------
3270
3271 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3272 before the connection was closed, thus losing the rejection response.
3273
3274 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3275 some early Solaris releases, but causes trouble in current releases where
3276 socklen_t is defined.
3277
3278 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3279 always exist.
3280
3281 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3282 configured.
3283
3284 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3285 that releasing the top of it at the end releases what was used for sub-
3286 expansions (unless the block got too big). However, discard this block if
3287 the first thing is a variable or header, so that we can use its block when
3288 it is dynamic (useful for very large $message_headers, for example).
3289
3290 6. Lookups now cache *every* query, not just the most recent. A new, separate
3291 store pool is used for this. It can be recovered when all lookup caches are
3292 flushed. Lookups now release memory at the end of their result strings.
3293 This has involved some general refactoring of the lookup sources.
3294
3295 7. Some code has been added to the store_xxx() functions to reduce the amount
3296 of flapping under certain conditions.
3297
3298 8. log_incoming_interface used to affect only the <= reception log lines. Now
3299 it causes the local interface and port to be added to several more SMTP log
3300 lines, for example "SMTP connection from", and rejection lines.
3301
3302 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3303
330410. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3305
330611. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3307 could be overwritten at the end of the current message (or the start of a
3308 new message if it was set in a HELO ACL). The value is now preserved for
3309 the duration of the SMTP connection.
3310
331112. If a transport had a headers_rewrite setting, and a matching header line
3312 contained an unqualified address, that address was qualified, even if it
3313 did not match any rewriting rules. The underlying bug was that the values
3314 of the flags that permit the existence of unqualified sender and recipient
3315 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3316 non-local messages, and by -bnq for local messages) were not being
3317 preserved with the message after it was received.
3318
331913. When Exim was logging an SMTP synchronization error, it could sometimes log
3320 "next input=" as part of the text comprising the host identity instead of
3321 the correct text. The code was using the same buffer for two different
3322 strings. However, depending on which order the printing function evaluated
3323 its arguments, the bug did not always show up. Under Linux, for example, my
3324 test suite worked just fine.
3325
332614. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3327 doesn't work with some older versions of Perl. It has been changed to "my",
3328 which in any case is probably the better facility to use.
3329
333015. A really picky compiler found some instances of statements for creating
3331 error messages that either had too many or two few arguments for the format
3332 string.
3333
333416. The size of the buffer for calls to the DNS resolver has been increased
3335 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3336 for addresses that have a lot of PTR records. This alleviates a problem; it
3337 does not fully solve it.
3338
333917. A dnsdb lookup for PTR records that receives more data than will fit in the
3340 buffer now truncates the list and logs the incident, which is the same
3341 action as happens when Exim is looking up a host name and its aliases.
3342 Previously in this situation something unpredictable would happen;
3343 sometimes it was "internal error: store_reset failed".
3344
334518. If a server dropped the connection unexpectedly when an Exim client was
3346 using GnuTLS and trying to read a response, the client delivery process
3347 crashed while trying to generate an error log message.
3348
334919. If a "warn" verb in an ACL added multiple headers to a message in a single
3350 string, for example:
3351
3352 warn message = H1: something\nH2: something
3353
3354 the text was added as a single header line from Exim's point of view
3355 though it ended up OK in the delivered message. However, searching for the
3356 second and subsequent header lines using $h_h2: did not work. This has been
3357 fixed. Similarly, if a system filter added multiple headers in this way,
3358 the routers could not see them.
3359
336020. Expanded the error message when iplsearch is called with an invalid key to
3361 suggest using net-iplsearch in a host list.
3362
336321. When running tests using -bh, any delays imposed by "delay" modifiers in
3364 ACLs are no longer actually imposed (and a message to that effect is
3365 output).
3366
336722. If a "gecos" field in a passwd entry contained escaped characters, in
3368 particular, if it contained a \" sequence, Exim got it wrong when building
3369 a From: or a Sender: header from that name. A second bug also caused
3370 incorrect handling when an unquoted " was present following a character
3371 that needed quoting.
3372
337323. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3374 was not being matched caselessly.
3375
337624. Arranged for all hyphens in the exim.8 source to be escaped with
3377 backslashes.
3378
337925. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3380 properly. Recipient callout cache records were still being keyed to include
3381 the sender, even when use_sender was set false. This led to far more
3382 callouts that were necessary. The sender is no longer included in the key
3383 when use_sender is false.
3384
338526. Added "control = submission" modifier to ACLs.
3386
338727. Added the ${base62d: operator to decode base 62 numbers.
3388
338928. dnsdb lookups can now access SRV records.
3390
339129. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3392 the configuration file.
3393
339430. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3395 (-v) mode. This makes the output for a verbose queue run more intelligible.
3396
339731. Added a use_postmaster feature to recipient callouts.
3398
339932. Added the $body_zerocount variable, containing the number of binary zero
3400 bytes in the message body.
3401
340233. The time of last modification of the "new" subdirectory is now used as the
3403 "mailbox time last read" when there is a quota error for a maildir
3404 delivery.
3405
340634. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3407
340835. Added +ignore_unknown as a special item in host lists.
3409
341036. Code for decoding IPv6 addresses in host lists is now included, even if
3411 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3412 address was recognized as an IP address, but was then not correctly decoded
3413 into binary, causing unexpected and incorrect effects when compared with
3414 another IP address.
3415
3416
3417Exim version 4.34
3418-----------------
3419
3420 1. Very minor rewording of debugging text in manualroute to say "list of
3421 hosts" instead of "hostlist".
3422
3423 2. If verify=header_syntax was set, and a header line with an unqualified
3424 address (no domain) and a large number of spaces between the end of the
3425 name and the colon was received, the reception process suffered a buffer
3426 overflow, and (when I tested it) crashed. This was caused by some obsolete
3427 code that should have been removed. The fix is to remove it!
3428
3429 3. When running in the test harness, delay a bit after writing a bounce
3430 message to get a bit more predictability in the log output.
3431
3432 4. Added a call to search_tidyup() just before forking a reception process. In
3433 theory, someone could use a lookup in the expansion of smtp_accept_max_
3434 per_host which, without the tidyup, could leave open a database connection.
3435
3436 5. Added the variables $recipient_data and $sender_data which get set from a
3437 lookup success in an ACL "recipients" or "senders" condition, or a router
3438 "senders" option, similar to $domain_data and $local_part_data.
3439
3440 6. Moved the writing of debug_print from before to after the "senders" test
3441 for routers.
3442
3443 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3444 problems for message scanning, either using a data ACL, or using
3445 local_scan() because the Received: header was not generated till after they
3446 were called (in order to set the time as the time of reception completion).
3447 I have revised the way this works. The header is now generated after the
3448 body is received, but before the ACL or local_scan() are called. After they
3449 are run, the timestamp in the header is updated.
3450
3451
3452Exim version 4.33
3453-----------------
3454
3455 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3456 before starting a queue runner without re-exec. This happened only when
3457 deliver_drop_privilege was set or when the Exim user was set to root. The
3458 effect of the bug was that timeouts during subsequent deliveries caused
3459 crashes instead of being properly handled. The handler is now left at its
3460 default (and expected) setting.
3461
3462 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3463 message, again when deliver_drop_privilege is set or Exim is run as root.
3464 The bug described in (1) was not present in this case, but the tidying up
3465 of the other signals was missing. I have made the two cases consistent.
3466
3467 3. The ignore_target_hosts setting on a manualroute router was being ignored
3468 for hosts that were looked up using the /MX notation.
3469
3470 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3471 in domain lists.
3472
3473 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3474 operated on the sender address. After changing the $sender_address to <>
3475 for the sender address verify, Exim was re-instated it as the original
3476 (before rewriting) address, but remembering that it had rewritten it, so it
3477 wasn't rewriting it again. This bug also had the effect of breaking the
3478 sender address verification caching when the sender address was rewritten.
3479
3480 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3481 This has been changed so that if the ip literal address matches
3482 ignore_target_hosts, the router declines.
3483
3484 7. Added expansion conditions match_domain, match_address, and match_local_
3485 part (NOT match_host).
3486
3487 8. The placeholder for the Received: header didn't have a length field set.
3488
3489 9. Added code to Exim itself and to exim_lock to test for a specific race
3490 condition that could lead to file corruption when using MBX delivery. The
3491 issue is with the lockfile that is created in /tmp. If this file is removed
3492 after a process has opened it but before that process has acquired a lock,
3493 there is the potential for a second process to recreate the file and also
3494 acquire a lock. This could lead to two Exim processes writing to the file
3495 at the same time. The added code performs the same test as UW imapd; it
3496 checks after acquiring the lock that its file descriptor still refers to
3497 the same named file.
3498
349910. The buffer for building added header lines was of fixed size, 8192 bytes.
3500 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3501 when Exim is built.
3502
350311. Added the smtp_active_hostname option. If used, this will typically be made
3504 to depend on the incoming interface address. Because $interface_address is
3505 not set up until the daemon has forked a reception process, error responses
3506 that can happen earlier (such as "too many connections") no longer contain
3507 a host name.
3508
350912. If an expansion in a condition on a "warn" statement fails because a lookup
3510 defers, the "warn" statement is abandoned, and the next ACL statement is
3511 processed. Previously this caused the whole ACL to be aborted.
3512
351313. Added the iplsearch lookup type.
3514
351514. Added ident_timeout as a log selector.
3516
351715. Added tls_certificate_verified as a log selector.
3518
351916. Added a global option tls_require_ciphers (compar