The Date: and Message-Id: headers should normally be *appended* to a message,
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
b26eacf1 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.613 2010/06/01 11:13:54 pdp Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
465e92cf
JJ
6Exim version 4.72
7-----------------
8
9JJ/01 installed exipick 20100104.1, adding $max_received_linelength, $data_path, and $header_path variables; fixed documentation bugs and typos
10
edae0343
JJ
11JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow exipick to access non-standard spools, including the "frozen" queue (Finput)
12
9bd3e22c
NM
13NM/01 Bugzilla 965: Support mysql stored procedures.
14 Patch from Alain Williams
15
bb576ff7
NM
16NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
17
5a1a5845
NM
18NM/03 Bugzilla 955: Documentation fix for max_rcpts.
19 Patch from Andreas Metzler
20
981a9fad
NM
21NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
22 Patch from Kirill Miazine
23
7fc497ee
NM
24NM/05 Bugzilla 671: Added umask to procmail example.
25
1a41defa
JJ
26JJ/03 installed exipick 20100323.0, fixing doc bug
27
a466095c 28NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 29 directory. Notification and patch from Dan Rosenberg.
a466095c 30
94a6bd0b
NM
31TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
32
33TK/02 Improve log output when DKIM signing operation fails.
34
35MH/01 Treat the transport option dkim_domain as a colon separated
36 list, not as a single string, and sign the message with each element,
37 omitting multiple occurences of the same signer.
38
c1b141a8
NM
39NM/07 Null terminate DKIM strings, Null initialise DKIM variable
40 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 41
b26eacf1 42NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
43 Patch by Simon Arlott
44
179c5980 45PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 46 MBX locking. Notification from Dan Rosenberg.
179c5980 47
9bd3e22c 48
7c6d71af
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49Exim version 4.71
50-----------------
51
52TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body
53
f013fb92
NM
54NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
55
0eb8eedd
NM
56NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
57
663ee6d9
NM
58NM/03 Bugzilla 847: Enable DNSDB lookup by default.
59
177ebd9b
NM
60NM/04 Bugzilla 915: Flag broken perl installation during build.
61
7c6d71af 62
210f147e
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63Exim version 4.70
64-----------------
65
cdd3bb85 66TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 67 "spamd_address" if it starts with a dollar sign.
cdd3bb85
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68
69TK/02 Write list of recipients to X-Envelope-Sender header when building
70 the mbox-format spool file for content scanning (suggested by Jakob
71 Hirsch)
72
73TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
74 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 75 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
76
77TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
78 by Mark Daniel Reidel <mr@df.eu>.
79
210f147e
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80NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
81 When building exim an external PCRE library is now needed -
82 PCRE is a system library on the majority of modern systems.
83 See entry on PCRE_LIBS in EDITME file.
84
deafd5b3
NM
85NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
86 conversation. Added nologin parameter to request.
87 Patch contributed by Kirill Miazine
88
089793a4
TF
89TF/01 Do not log submission mode rewrites if they do not change the address.
90
5f16ca82
TF
91TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
92
dae9d94e
NM
93NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
94 log files in place. Contributed by Roberto Lima
95
3f0da4d0
NM
96NM/04 Bugzilla 667: close socket used by dovecot authenticator
97
06864c44
TF
98TF/03 Bugzilla 615: When checking the local_parts router precondition
99 after a local_part_suffix or local_part_prefix option, Exim now
100 does not use the address's named list lookup cache, since this
101 contains cached lookups for the whole local part.
102
65a7d8c3
NM
103NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
104 Robert Millan. Documentation is in experimental-spec.txt
105
23510047 106TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 107
7d8eec3a 108NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 109
7d8eec3a 110NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
111 Patch provided by Jan Srzednicki
112
89dec7b6
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113TF/05 Leading white space used to be stripped from $spam_report which
114 wrecked the formatting. Now it is preserved.
5f28a6e8 115
a99de90c
TF
116TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
117 that they are available at delivery time.
118
e2803e40
TF
119TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
120
7199e1ee
TF
121TF/08 TLS error reporting now respects the incoming_interface and
122 incoming_port log selectors.
123
e276e04b
TF
124TF/09 Produce a more useful error message if an SMTP transport's hosts
125 setting expands to an empty string.
126
ce552449
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127NM/06 Bugzilla 744: EXPN did not work under TLS.
128 Patch provided by Phil Pennock
129
e765a0f1
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130NM/07 Bugzilla 769: Extraneous comma in usage fprintf
131 Patch provided by Richard Godbee
132
4f054c63 133NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 134 acl_smtp_notquit, added index entry.
4f054c63 135
24c929a2
NM
136NM/09 Bugzilla 787: Potential buffer overflow in string_format
137 Patch provided by Eugene Bujak
138
cf73943b
NM
139NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
140 Patch provided by Maxim Dounin
141
b52bc06e
NM
142NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
143 Patch provided by Phil Pennock
144
447de4b0
NM
145NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
146
4c69d561
NM
147NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
148 Patch provided by Brad "anomie" Jorsch
149
d5c39246 150NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
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151 Patch provided by Dean Brooks
152
0b23848a
TK
153TK/05 Add native DKIM support (does not depend on external libraries).
154
8f3414a1 155NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
NM
156 Patch provided by Graeme Fowler
157
fb6f955d
NM
158NM/16 Bugzilla 851: Documentation example syntax fix.
159
160NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 161
dbb0bf41
NM
162NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
163
f3766eb5
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164NM/19 Bugzilla 745: TLS version reporting
165 Patch provided by Phil Pennock
166
167NM/20 Bugzilla 167: bool: condition support
168 Patch provided by Phil Pennock
36f12725 169
e6060e2c
NM
170NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
171 Patch provided by Phil Pennock
172
7496b417 173NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
174 Patch provided by Brad "anomie" Jorsch
175
d5c13d66
NM
176NM/23 Bugzilla 687: Fix misparses in eximstats
177 Patch provided by Heiko Schlittermann
178
b2335c0b
NM
179NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
180 Patch provided by Heiko Schlittermann
181
f4cd9433 182NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 183 plus update to original patch.
f4cd9433
NM
184
185NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 186
8dc71ab3
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187NM/27 Bugzilla 802: Improvements to local interface IP addr detection
188 Patch provided by David Brownlee
189
400eda43
NM
190NM/28 Bugzilla 807: Improvements to LMTP delivery logging
191
192NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 193
07af267e
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194NM/30 Bugzilla 888: TLS documentation bugfixes
195
0cc09577 196NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 197
17792b53
NM
198NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
199 Unlike the original bugzilla I have changed all shell scripts in src tree
200
52383f8f
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201NM/33 Bugzilla 898: Transport filter timeout fix
202 Patch by Todd Rinaldo
203
5ca6d115
NM
204NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
205 Patch by Serge Demonchaux
206
baee9eee
NM
207NM/35 Bugzilla 39: Base64 decode bug fixes
208 Patch by Jakob Hirsch
209
e93a964c
NM
210NM/36 Bugzilla 909: Correct connect() call in dcc code
211
9bf3d68f
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212NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
213
214NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 215
30339e0f
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216NM/39 Bugzilla 911: Fixed MakeLinks build script
217
deafd5b3 218
47db1125
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219Exim version 4.69
220-----------------
221
4b3504d0
TK
222TK/01 Add preliminary DKIM support. Currently requires a forked version of
223 ALT-N's libdkim that I have put here:
224 http://duncanthrax.net/exim-experimental/
225
226 Note to Michael Haardt: I had to rename some vars in sieve.c. They
227 were called 'true' and it seems that C99 defines that as a reserved
228 keyword to be used with 'bool' variable types. That means you could
229 not include C99-style headers which use bools without triggering
230 build errors in sieve.c.
231
81ea09ca
NM
232NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
233 as mailq or other aliases. Changed the --help handling significantly
234 to do whats expected. exim_usage() emits usage/help information.
235
f13cddcb
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236SC/01 Added the -bylocaldomain option to eximstats.
237
8ad076b2
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238NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
239
a843aaa6
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240NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
241
47db1125
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242NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
243
244
eb4c0de6
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245Exim version 4.68
246-----------------
247
248PH/01 Another patch from the Sieve maintainer.
249
6a3bceb1
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250PH/02 When an IPv6 address is converted to a string for single-key lookup
251 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
252 dots are used instead of colons so that keys in lsearch files need not
253 contain colons. This was done some time before quoting was made available
254 in lsearch files. However, iplsearch files do require colons in IPv6 keys
255 (notated using the quote facility) so as to distinguish them from IPv4
256 keys. This meant that lookups for IP addresses in host lists did not work
257 for iplsearch lookups.
258
259 This has been fixed by arranging for IPv6 addresses to be expressed with
260 colons if the lookup type is iplsearch. This is not incompatible, because
261 previously such lookups could never work.
262
263 The situation is now rather anomolous, since one *can* have colons in
264 ordinary lsearch keys. However, making the change in all cases is
265 incompatible and would probably break a number of configurations.
266
2e30fa9d
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267TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
268 version.
269
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270MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
271 conversion specification without a maximum field width, thereby enabling
272 a rogue spamd server to cause a buffer overflow. While nobody in their
273 right mind would setup Exim to query an untrusted spamd server, an
274 attacker that gains access to a server running spamd could potentially
275 exploit this vulnerability to run arbitrary code as the Exim user.
276
ae276964
TK
277TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
278 $primary_hostname instead of what libspf2 thinks the hosts name is.
279
0f2cbd1b
MH
280MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
281 a directory entry by the name of the lookup key. Previously, if a
282 symlink pointed to a non-existing file or a file in a directory that
283 Exim lacked permissions to read, a lookup for a key matching that
284 symlink would fail. Now it is enough that a matching directory entry
285 exists, symlink or not. (Bugzilla 503.)
286
2b85bce7
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287PH/03 The body_linecount and body_zerocount variables are now exported in the
288 local_scan API.
289
93655c46
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290PH/04 Added the $dnslist_matched variable.
291
6c512171
PH
292PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
293 This means they are set thereafter only if the connection becomes
294 encrypted.
295
296PH/06 Added the client_condition to authenticators so that some can be skipped
297 by clients under certain conditions.
298
aa6dc513
PH
299PH/07 The error message for a badly-placed control=no_multiline_responses left
300 "_responses" off the end of the name.
301
a96603a0
PH
302PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
303
8f240103
PH
304PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
305 (without spaces) instead of just copying the configuration text.
306
307PH/10 Added the /noupdate option to the ratelimit ACL condition.
308
d677b2f2
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309PH/11 Added $max_received_linelength.
310
d52120f2
PH
311PH/12 Added +ignore_defer and +include_defer to host lists.
312
64f2600a
PH
313PH/13 Installed PCRE version 7.2. This needed some changes because of the new
314 way in which PCRE > 7.0 is built.
315
8669f003
PH
316PH/14 Implemented queue_only_load_latch.
317
a4dc33a8
PH
318PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
319 MAIL command. The effect was to mangle the value on 64-bit systems.
320
d6a60c0f
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321PH/16 Another patch from the Sieve maintainer.
322
8f128379
PH
323PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
324
8932dffe
PH
325PH/18 If a system quota error occurred while trying to create the file for
326 a maildir delivery, the message "Mailbox is full" was not appended to the
327 bounce if the delivery eventually timed out. Change 4.67/27 below applied
328 only to a quota excession during the actual writing of the file.
d6a60c0f 329
ddea74fa 330PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
331 characters?) which causes problems in log lines. The DN values are now
332 passed through string_printing() before being added to log lines.
333
ddea74fa 334PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
335 and InterBase are left for another time.)
336
ddea74fa
PH
337PH/21 Added message_body_newlines option.
338
ce9f225c
PH
339PH/22 Guard against possible overflow in moan_check_errorcopy().
340
19897d52
PH
341PH/23 POSIX allows open() to be a macro; guard against that.
342
bc64a74d
PH
343PH/24 If the recipient of an error message contained an @ in the local part
344 (suitably quoted, of course), incorrect values were put in $domain and
345 $local_part during the evaluation of errors_copy.
346
eb4c0de6 347
b4ed4da0
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348Exim version 4.67
349-----------------
350
22ad45c9
MH
351MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
352 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
353 Jan Srzednicki.
354
b4ed4da0
PH
355PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
356 issue a MAIL command.
357
431b7361
PH
358PH/02 In an ACL statement such as
359
360 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
361
362 if a client was not listed at all, or was listed with a value other than
363 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
364 the condition was not true (as it should be), so access was not denied.
365 The bug was that the ! inversion was incorrectly passed on to the second
366 item. This has been fixed.
367
368PH/03 Added additional dnslists conditions == and =& which are different from
369 = and & when the dns lookup returns more than one IP address.
370
83da1223
PH
371PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
372 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
373
54fc8428
PH
374PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
375 FSYNC, which compiles an option called disable_fsync that allows for
376 bypassing fsync(). The documentation is heavily laced with warnings.
377
34c5e8dd
SC
378SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
379
bbe15da8
PH
380PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
381 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
382 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
383 including adding "make clean"; (3) Added -fPIC when compiling the test
384 dynamically loaded module, to get rid of a warning.
385
0e8a9471
MH
386MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
387 message fails, move_frozen_messages = true and ignore_bounce_errors_after
388 = 0s. The bug is otherwise harmless.
389
f0872424
PH
390PH/07 There was a bug in the dovecot authenticator such that the value of
391 $auth1 could be overwritten, and so not correctly preserved, after a
392 successful authentication. This usually meant that the value preserved by
393 the server_setid option was incorrect.
394
b01dd148
PH
395PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
396
6bf342e1
PH
397PH/09 Installed PCRE release 7.0.
398
273f34d0
PH
399PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
400 run for batched SMTP input. It is now run at the start of every message
401 in the batch. While fixing this I discovered that the process information
402 (output by running exiwhat) was not always getting set for -bs and -bS
403 input. This is fixed, and it now also says "batched" for BSMTP.
404
cf8b11a5
PH
405PH/11 Added control=no_pipelining.
406
41c7c167
PH
407PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
408 patch, slightly modified), and move the expansion of helo_data till after
409 the connection is made in the smtp transport (so it can use these
410 values).
411
9c57cbc0
PH
412PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
413
f3f065bb
PH
414PH/14 Added log_selector = +pid.
415
047bdd8c
PH
416PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
417
0ce9abe6
PH
418PH/16 Add ${if forany and ${if forall.
419
0e22dfd1
PH
420PH/17 Added dsn_from option to vary the From: line in DSNs.
421
4c590bd1
PH
422PH/18 Flush SMTP output before performing a callout, unless control =
423 no_callout_flush is set.
424
09945f1e
PH
425PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
426 was true (the default) a successful delivery failed to delete the retry
427 item, thus causing premature timeout of the address. The bug is now
428 fixed.
429
c51b8e75
PH
430PH/20 Added hosts_avoid_pipelining to the smtp transport.
431
e28326d8
PH
432PH/21 Long custom messages for fakedefer and fakereject are now split up
433 into multiline reponses in the same way that messages for "deny" and
434 other ACL rejections are.
435
75b1493f
PH
436PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
437 with slight modification.
438
7c5214ec
PH
439PH/23 Applied sieve patches from the maintainer "tracking the latest notify
440 draft, changing the syntax and factoring some duplicate code".
441
4311097e
PH
442PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
443 for deliveries of the second and subsequent messages over the same SMTP
444 connection.
445
29f89cad
PH
446PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
447 ${reduce, with only minor "tidies".
448
5e687460
SC
449SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
450
c3611384
PH
451PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
452 expansion side effects.
453
5a11a7b4
PH
454PH/27 When a message times out after an over-quota error from an Exim-imposed
455 quota, the bounce message says "mailbox is full". This message was not
456 being given when it was a system quota that was exceeded. It now should
457 be the same.
458
0e20aff9
MH
459MH/03 Made $recipients available in local_scan(). local_scan() already has
460 better access to the recipient list through recipients_list[], but
461 $recipients can be useful in postmaster-provided expansion strings.
462
ca86f471
PH
463PH/28 The $smtp_command and $smtp_command_argument variables were not correct
464 in the case of a MAIL command with additional options following the
465 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
466 were accidentally chopped off.
467
a14e5636
PH
468PH/29 SMTP synchronization checks are implemented when a command is read -
469 there is a check that no more input is waiting when there shouldn't be
470 any. However, for some commands, a delay in an ACL can mean that it is
471 some time before the response is written. In this time, more input might
472 arrive, invalidly. So now there are extra checks after an ACL has run for
473 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
474 pipelining has not been advertised.
475
ec95d1a6
PH
476PH/30 MH's patch to allow iscntrl() characters to be list separators.
477
42855d71
PH
478PH/31 Unlike :fail:, a custom message specified with :defer: was not being
479 returned in the SMTP response when smtp_return_error_details was false.
480 This has been fixed.
481
57c2c631
PH
482PH/32 Change the Dovecot authenticator to use read() and write() on the socket
483 instead of the C I/O that was originally supplied, because problems were
484 reported on Solaris.
485
58c01c94
PH
486PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
487 Exim which did not show up earlier: it was assuming that a call to
488 SSL_CTX_set_info_callback() might give an error value. In fact, there is
489 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
490 was a macro that became an assignment, so it seemed to work. This has
491 changed to a proper function call with a void return, hence the compile
492 error. Exim's code has been fixed.
493
dee5a20a
PH
494PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
495 cpus.
496
d2ee6114
PH
497PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
498
b2d5182b
PH
499PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
500
79749a79
PH
501PH/37 If a message is not accepted after it has had an id assigned (e.g.
502 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
503 "Completed" line in the log. When some messages of this type were
504 selected by exigrep, they were listed as "not completed". Others were
505 picked up by some special patterns. I have improved the selection
506 criteria to be more general.
79749a79 507
c456d9bb
PH
508PH/38 The host_find_failed option in the manualroute router can now be set
509 to "ignore", to completely ignore a host whose IP address cannot be
510 found. If all hosts are ignored, the behaviour is controlled by the new
511 host_all_ignored option.
512
cd9868ec
PH
513PH/39 In a list of hosts for manualroute, if one item (either because of multi-
514 homing or because of multiple MX records with /mx) generated more than
515 one IP address, and the following item turned out to be the local host,
516 all the secondary addresses of the first item were incorrectly removed
517 from the list, along with the local host and any following hosts (which
518 is what is supposed to happen).
519
ebeaf996
PH
520PH/40 When Exim receives a message, it writes the login name, uid, and gid of
521 whoever called Exim into the -H file. In the case of the daemon it was
522 behaving confusingly. When first started, it used values for whoever
523 started the daemon, but after a SIGHUP it used the Exim user (because it
524 calls itself on a restart). I have changed the code so that it now always
525 uses the Exim user.
526
2679d413
PH
527PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
528 message are rejected with the same error (e.g. no authentication or bad
529 sender address), and a DATA command is nevertheless sent (as can happen
530 with PIPELINING or a stupid MUA), the error message that was given to the
531 RCPT commands is included in the rejection of the DATA command. This is
532 intended to be helpful for MUAs that show only the final error to their
533 users.
534
84024b72
PH
535PH/42 Another patch from the Sieve maintainer.
536
8005d38e
SC
537SC/02 Eximstats - Differentiate between permanent and temporary rejects.
538 Eximstats - Fixed some broken HTML links and added missing column headers
539 (Jez Hancock).
540 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
541 columns for Rejects, Temp Rejects, Ham, and Spam rows.
542
3298c6c6
SC
543SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
544
a43a27c5
PH
545PH/43 Yet another patch from the Sieve maintainer.
546
58eb016e 547PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
548 the response to the final '.' that terminates a message, but only in the
549 case where the client has not sent further data following the '.'
550 (unfortunately, this is allowed). However, in many cases there won't be
551 any further data because there won't be any more messages to send. A call
552 to select() can be used: if it shows that the input is "ready", there is
553 either input waiting, or the socket has been closed. An attempt to read
554 the next input character can distinguish the two cases. Previously, Exim
58eb016e 555 would have sent an OK response which the client would never have see.
563b63fa
PH
556 This could lead to message repetition. This fix should cure that, at
557 least in a lot of common cases.
58eb016e 558
b43a74ea
PH
559PH/45 Do not advertise STARTTLS in response to HELP unless it would be
560 advertised in response to EHLO.
561
b4ed4da0 562
5dd1517f
PH
563Exim version 4.66
564-----------------
565
566PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
567 fixed by 4.65/MH/01 (is this a record?) are fixed:
568
569 (i) An empty string was always treated as zero by the numeric comparison
570 operators. This behaviour has been restored.
571
572 (ii) It is documented that the numeric comparison operators always treat
573 their arguments as decimal numbers. This was broken in that numbers
574 starting with 0 were being interpreted as octal.
575
576 While fixing these problems I realized that there was another issue that
577 hadn't been noticed. Values of message_size_limit (both the global option
578 and the transport option) were treated as octal if they started with 0.
579 The documentation was vague. These values are now always treated as
580 decimal, and I will make that clear in the documentation.
581
582
93cfa765
TK
583Exim version 4.65
584-----------------
585
586TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
587 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
588 versions. (#438)
589
d6066548
MH
590MH/01 Don't check that the operands of numeric comparison operators are
591 integers when their expansion is in "skipping" mode (fixes bug
592 introduced by 4.64-PH/07).
593
4362ff0d
PH
594PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
595 child addresses, Exim now panics and dies. Previously, because the count
596 is held in a short int, deliveries were likely to be lost. As such a
597 large number of recipients for a single message is ridiculous
598 (performance will be very, very poor), I have chosen to impose a limit
599 rather than extend the field.
600
93cfa765 601
944e9e9c
TF
602Exim version 4.64
603-----------------
aa41d2de 604
21d74bd9
TK
605TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
606 leftover -K file (the existence of which was triggered by #402).
607 While we were at it, introduced process PID as part of the -K
608 filename. This should rule out race conditions when creating
609 these files.
610
611TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
612 processing considerably. Previous code took too long for large mails,
613 triggering a timeout which in turn triggers #401.
614
615TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
616 in the DK code in transports.c. sendfile() is not really portable,
617 hence the _LINUX specificness.
944e9e9c
TF
618
619TF/01 In the add_headers option to the mail command in an Exim filter,
620 there was a bug that Exim would claim a syntax error in any
621 header after the first one which had an odd number of characters
622 in the field name.
623
2b1c6e3a
PH
624PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
625 callout verification, Exim cached a "reject" for the entire domain. This
626 is correct for most verifications, but it is not correct for a recipient
627 verification with use_sender or use_postmaster set, because in that case
628 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
629 case of MAIL FROM:<> rejection from other early rejections (e.g.
630 rejection of HELO). When verifying a recipient using a non-null MAIL
631 address, the cache is ignored if it shows MAIL FROM:<> rejection.
632 Whatever the result of the callout, the value of the domain cache is
633 left unchanged (for any other kind of callout, getting as far as trying
634 RCPT means that the domain itself is ok).
635
1f872c80
PH
636PH/02 Tidied a number of unused variable and signed/unsigned warnings that
637 gcc 4.1.1 threw up.
638
639PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
640 manifest itself as EPIPE rather than ECONNECT. When tidying away a
641 session, the daemon ignores ECONNECT errors and logs others; it now
642 ignores EPIPE as well.
643
d203e649
PH
644PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
645 (quoted-printable decoding).
646
cc2ed8f7 647PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 648 later the small subsequent patch to fix an introduced bug.
f951fd57 649
ddfcd446
PH
650PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
651
d45b1de8
PH
652PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
653
654PH/08 An error is now given if message_size_limit is specified negative.
655
38a0a95f 656PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 657 to be given (somewhat) arbitrary names.
38a0a95f 658
a2405d83
JJ
659JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
660 in 4.64-PH/09.
661
662JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
663 miscellaneous code fixes
664
6ea85e9a
PH
665PH/10 Added the log_reject_target ACL modifier to specify where to log
666 rejections.
667
26da7e20
PH
668PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
669 hostname. This is wrong, because it relates to the incoming message (and
670 probably the interface on which it is arriving) and not to the outgoing
671 callout (which could be using a different interface). This has been
672 changed to use the value of the helo_data option from the smtp transport
673 instead - this is what is used when a message is actually being sent. If
674 there is no remote transport (possible with a router that sets up host
675 addresses), $smtp_active_hostname is used.
6ea85e9a 676
14aa5a05 677PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 678 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
679 (a) The code assumed that strncpy() returns a negative number on buffer
680 overflow, which isn't the case. Replaced with Exim's string_format()
681 function.
682 (b) There were several signed/unsigned issues. I just did the minimum
683 hacking in of casts. There is scope for a larger refactoring.
684 (c) The code used strcasecmp() which is not a standard C function.
685 Replaced with Exim's strcmpic() function.
686 (d) The code set only $1; it now sets $auth1 as well.
687 (e) A simple test gave the error "authentication client didn't specify
688 service in request". It would seem that Dovecot has changed its
689 interface. Fortunately there's a specification; I followed it and
690 changed what the client sends and it appears to be working now.
691
ff75a1f7
PH
692PH/13 Added $message_headers_raw to provide the headers without RFC 2047
693 decoding.
694
e6f6568e
PH
695PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
696 address A is aliased to B and C, where B exists and C does not. Without
697 -v the output is "A verified" because verification stops after a
698 successful redirection if more than one address is generated. However,
699 with -v the child addresses are also verified. Exim was outputting "A
700 failed to verify" and then showing the successful verification for C,
701 with its parentage. It now outputs "B failed to verify", showing B's
702 parentage before showing the successful verification of C.
703
d6f6e0dc
PH
704PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
705 look up a TXT record in a specific list after matching in a combined
706 list.
707
322050c2
PH
708PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
709 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
710 they consult the DNS. I had assumed they would set it the way they
711 wanted; and indeed my experiments on Linux seem to show that in some
712 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
713 To be on the safe side, however, I have now made the interface to
714 host_find_byname() similar to host_find_bydns(), with an argument
715 containing the DNS resolver options. The host_find_byname() function now
716 sets these options at its start, just as host_find_bydns() does. The smtp
717 transport options dns_qualify_single and dns_search_parents are passed to
718 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
719 of host_find_byname() use the default settings of RES_DEFNAMES
720 (qualify_single) but not RES_DNSRCH (search_parents).
721
08955dd3
PH
722PH/17 Applied (a modified version of) Nico Erfurth's patch to make
723 spool_read_header() do less string testing, by means of a preliminary
724 switch on the second character of optional "-foo" lines. (This is
725 overdue, caused by the large number of possibilities that now exist.
726 Originally there were few.) While I was there, I also converted the
727 str(n)cmp tests so they don't re-test the leading "-" and the first
728 character, in the hope this might squeeze out yet more improvement.
729
1eccaa59
PH
730PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
731 flag allowing group syntax was set by the header_syntax check but not
732 turned off, possible causing trouble later; (2) The flag was not being
733 set at all for the header_verify test, causing "group"-style headers to
734 be rejected. I have now set it in this case, and also caused header_
735 verify to ignore an empty address taken from a group. While doing this, I
736 came across some other cases where the code for allowing group syntax
737 while scanning a header line wasn't quite right (mostly, not resetting
738 the flag correctly in the right place). These bugs could have caused
739 trouble for malformed header lines. I hope it is now all correct.
740
602e59e5
PH
741PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
742 with the "reply" argument non-NULL. The code, however (which originally
743 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
744 but it didn't always do it. This confused somebody who was copying the
745 code for some other use. I have removed all the tests.
746
411ef850
PH
747PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
748 feature that was used to support insecure browsers during the U.S. crypto
749 embargo. It requires special client support, and Exim is probably the
750 only MTA that supported it -- and would never use it because real RSA is
751 always available. This code has been removed, because it had the bad
752 effect of slowing Exim down by computing (never used) parameters for the
753 RSA_EXPORT functionality.
754
7befa435
PH
755PH/21 On the advice of Timo Sirainen, added a check to the dovecot
756 authenticator to fail if there's a tab character in the incoming data
757 (there should never be unless someone is messing about, as it's supposed
758 to be base64-encoded). Also added, on Timo's advice, the "secured" option
759 if the connection is using TLS or if the remote IP is the same as the
760 local IP, and the "valid-client-cert option" if a client certificate has
761 been verified.
762
48da4259 763PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
764 authenticators. This can be used for authorization after authentication
765 succeeds. (In the case of plaintext, it servers for both authentication
766 and authorization.)
767
48da4259
PH
768PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
769 if any retry times were supplied.
770
d1d5595c
PH
771PH/24 Exim crashed if verify=helo was activated during an incoming -bs
772 connection, where there is no client IP address to check. In this
773 situation, the verify now always succeeds.
774
0ef732d9
PH
775PH/25 Applied John Jetmore's -Mset patch.
776
328895cc
PH
777PH/26 Added -bem to be like -Mset, but loading a message from a file.
778
fd700877
PH
779PH/27 In a string expansion for a processed (not raw) header when multiple
780 headers of the same name were present, leading whitespace was being
781 removed from all of them, but trailing whitespace was being removed only
782 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
783 before concatenation. Completely empty headers in a concatenation (as
784 before) are ignored.
fd700877 785
8dce1a6f
PH
786PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
787 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
788
17af4a17
PH
789PH/29 [Removed. This was a change that I later backed out, and forgot to
790 correct the ChangeLog entry (that I had efficiently created) before
791 committing the later change.]
f6c332bd
PH
792
793PH/30 Exim was sometimes attempting to deliver messages that had suffered
794 address errors (4xx response to RCPT) over the same connection as other
795 messages routed to the same hosts. Such deliveries are always "forced",
796 so retry times are not inspected. This resulted in far too many retries
797 for the affected addresses. The effect occurred only when there were more
798 hosts than the hosts_max_try setting in the smtp transport when it had
799 the 4xx errors. Those hosts that it had tried were not added to the list
800 of hosts for which the message was waiting, so if all were tried, there
801 was no problem. Two fixes have been applied:
802
803 (i) If there are any address or message errors in an SMTP delivery, none
804 of the hosts (tried or untried) are now added to the list of hosts
805 for which the message is waiting, so the message should not be a
806 candidate for sending over the same connection that was used for a
807 successful delivery of some other message. This seems entirely
808 reasonable: after all the message is NOT "waiting for some host".
809 This is so "obvious" that I'm not sure why it wasn't done
810 previously. Hope I haven't missed anything, but it can't do any
811 harm, as the worst effect is to miss an optimization.
812
813 (ii) If, despite (i), such a delivery is accidentally attempted, the
814 routing retry time is respected, so at least it doesn't keep
815 hammering the server.
816
c1114884
PH
817PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
818 in ${readsocket because some servers need this prod.
819
7a0743eb
PH
820PH/32 Added some extra debug output when updating a wait-xxx database.
821
0d85fa3f
PH
822PH/33 The hint "could be header name not terminated by colon", which has been
823 given for certain expansion errors for a long time, was not being given
824 for the ${if def:h_colon_omitted{... case.
825
1bf43b78
PH
826PH/34 The spec says: "With one important exception, whenever a domain list is
827 being scanned, $domain contains the subject domain." There was at least
828 one case where this was not true.
829
520de300
PH
830PH/35 The error "getsockname() failed: connection reset by peer" was being
831 written to the panic log as well as the main log, but it isn't really
832 panic-worthy as it just means the connection died rather early on. I have
833 removed the panic log writing for the ECONNRESET error when getsockname()
834 fails.
835
48c7f9e2
PH
836PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
837 runs only) independently of the message's sender address. This meant
838 that, if the 4xx error was in fact related to the sender, a different
839 message to the same recipient with a different sender could confuse
840 things. In particualar, this can happen when sending to a greylisting
841 server, but other circumstances could also provoke similar problems.
842 I have changed the default so that the retry time for these errors is now
843 based a combination of the sender and recipient addresses. This change
844 can be overridden by setting address_retry_include_sender=false in the
845 smtp transport.
846
99ea1c86
PH
847PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
848 remote server are returned as part of bounce messages. This was not
849 happening for LMTP over a pipe (the lmtp transport), but now it is the
850 same for both kinds of LMTP.
851
a2042e78
PH
852PH/38 Despite being documented as not happening, Exim was rewriting addresses
853 in header lines that were in fact CNAMEs. This is no longer the case.
854
4fbcfc2e
PH
855PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
856 and queue runs started by the daemon processed all messages. This has
857 been fixed so that -R and -S can now usefully be given with -q<time>.
858
aa41d2de
PH
859PH/40 Import PCRE release 6.7 (fixes some bugs).
860
af561417
PH
861PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
862
3cc66b45
PH
863PH/42 Give an error if -q is specified more than once.
864
194cc0e4
PH
865PH/43 Renamed the variables $interface_address and $interface_port as
866 $received_ip_address and $received_port, to make it clear that these
867 values apply to message reception, and not to the outgoing interface when
868 a message is delivered. (The old names remain recognized, of course.)
869
a401ddaa
PH
870PH/44 There was no timeout on the connect() call when using a Unix domain
871 socket in the ${readsocket expansion. There now is.
872
4e88a19f
PH
873PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
874 be meaningful with "accept".
875
d7d7b289
SC
876SC/01 Eximstats V1.43
877 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
878
879SC/02 Eximstats V1.44
880 Use a glob alias rather than an array ref in the generated
881 parser. This improves both readability and performance.
882
883SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
884 Collect SpamAssassin and rejection statistics.
885 Don't display local sender or destination tables unless
886 there is data to show.
887 Added average volumes into the top table text output.
888
889SC/04 Eximstats V1.46
890 Collect data on the number of addresses (recipients)
891 as well as the number of messages.
892
893SC/05 Eximstats V1.47
894 Added 'Message too big' to the list of mail rejection
895 reasons (thanks to Marco Gaiarin).
896
897SC/06 Eximstats V1.48
898 Mainlog lines which have GMT offsets and are too short to
899 have a flag are now skipped.
900
901SC/07 Eximstats V1.49 (Alain Williams)
902 Added the -emptyok flag.
903
904SC/08 Eximstats V1.50
905 Fixes for obtaining the IP address from reject messages.
906
0ea2a468
JJ
907JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
908 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
909 whitesspace changes from 4.64-PH/27
910
911JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
912 match 4.64-PH/13
913
914JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
915 are found, allow negative numbers in numeric criteria)
916
917JJ/06 exipick.20061117.2, added new $message_body_missing variable
918
919JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
920 to match changes made in 4.64-PH/43
921
8a10f5a4
PH
922PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
923
30e18802
PH
924PH/47 Put in an explicit test for a DNS lookup of an address record where the
925 "domain" is actually an IP address, and force a failure. This locks out
926 those revolvers/nameservers that support "A-for-A" lookups, in
927 contravention of the specifications.
928
55728a4f
PH
929PH/48 When a host name was looked up from an IP address, and the subsequent
930 forward lookup of the name timed out, the host name was left in
931 $sender_host_name, contrary to the specification.
d7d7b289 932
d7837193
PH
933PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
934 restricted to single-key lookups, Exim was not diagnosing an error if
935 * or *@ was used with a query-style lookup.
936
87054a31
PH
937PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
938
ea2c01d2
MH
939MH/01 local_scan ABI version incremented to 1.1. It should have been updated
940 long ago, but noone interested enough thought of it. Let's just say that
941 the "1.1" means that there are some new functions that weren't there at
942 some point in the past.
943
e4fa6968
PH
944PH/51 Error processing for expansion failure of helo_data from an smtp
945 transport during callout processing was broken.
946
56f5d9bd
PH
947PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
948 tested/used via the -bh/-bhc/-bs options.
949
922e1c28
PH
950PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
951 bug, fixed in subsequent PCRE releases).
952
21eb6e72
PH
953PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
954 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
955
a0540757
PH
956PH/55 Check for a ridiculously long file name in exim_dbmbuild.
957
944e9e9c 958
478be7b0
SC
959Exim version 4.63
960-----------------
961
962SC/01 Use a glob alias rather than an array ref in eximstats generated
963 parser. This improves both readability and performance.
964
965SC/02 Collect SpamAssassin and rejection statistics in eximstats.
966 Don't display local sender or destination tables in eximstats unless
967 there is data to show.
968 Added average volumes into the eximstats top table text output.
969
970SC/03 Collect data on the number of addresses (recipients) as well
971 as the number of messages in eximstats.
972
2b965a65
TF
973TF/01 Correct an error in the documentation for the redirect router. Exim
974 does (usually) call initgroups() when daemonizing.
478be7b0 975
45b91596
PH
976TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
977 with consistent privilege compared to when running as a daemon.
478be7b0 978
c59f5781
TF
979TF/03 Note in the spec that $authenticated_id is not set for local
980 submissions from trusted users.
981
90fc3069
TF
982TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
983 Thanks to Dean Brooks <dean@iglou.com> for the patch.
984
6083aca0
TF
985TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
986 by adding some example configuration directives to the default
987 configuration file. A little bit of work is required to uncomment the
988 directives and define how usernames and passwords are checked, but
989 there is now a framework to start from.
990
765b530f
PH
991PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
992 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
993 without this. I don't know how relevant this is to other LDAP libraries.
994
4e167a8c
PH
995PH/02 Add the verb name to the "unknown ACL verb" error.
996
4608d683
PH
997PH/03 Magnus Holmgren's patch for filter_prepend_home.
998
b8dc3e4a
PH
999PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1000
5418e93b
PH
1001PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1002 directory not expanded when it should be if an expanded home directory
1003 was set for the address (which is overridden by the transport).
1004
b4a9bda2
PH
1005PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1006 libradius.
1007
45b91596
PH
1008PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1009 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1010 because it is too late at that time, and has no effect.
1011
5547e2c5
PH
1012PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1013 security issue with \' (bugzilla #107). I could not use the
1014 PQescapeStringConn() function, because it needs a PGconn value as one of
1015 its arguments.
1016
dbcef0ea
PH
1017PH/08 When testing addresses using -bt, indicate those final addresses that
1018 are duplicates that would not cause an additional delivery. At least one
1019 person was confused, thinking that -bt output corresponded to deliveries.
1020 (Suppressing duplicates isn't a good idea as you lose the information
1021 about possibly different redirections that led to the duplicates.)
1022
25257489
PH
1023PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1024 systems where poll() doesn't work, in particular OS X.
1025
c816d124
PH
1026PH/10 Added more information to debugging output for retry time not reached.
1027
a9ccd69a
PH
1028PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1029 operations in malware.c.
1030
75fa1910
PH
1031PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1032 signatures.
1033
a7d7aa58
PH
1034PH/13 If write_rejectlog was set false when logging was sent to syslog with
1035 syslog_duplication set false, log lines that would normally be written
1036 both the the main log and to the reject log were not written to syslog at
1037 all.
1038
42119b09
PH
1039PH/14 In the default configuration, change the use of "message" in ACL warn
1040 statements to "add_header".
1041
41609df5
PH
1042PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1043 not followed by a command (e.g. "seen endif").
1044
a5bd321b
PH
1045PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1046 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1047 latter.
1048
e85a7ad5 1049PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1050 so that it is now:
1051
e85a7ad5
PH
1052 ${if or { \
1053 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1054 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1055 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1056 }{no}{yes}}
1057
e85a7ad5
PH
1058 The Auto-Submitted: and various List- headers are standardised, whereas I
1059 don't think Precedence: ever was.
5dff5817 1060
d8fe1c03
PH
1061PH/18 Refactored debugging code in route_finduser() to show more information,
1062 in particular, the error code if getpwnam() issues one.
1063
16282d2b
PH
1064PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1065 This is apparently needed in addition to the PH/07 change above to avoid
1066 any possible encoding problems.
1067
35d40a98
PH
1068PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1069 but not after initializing Perl.
1070
034d99ab
PH
1071PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1072 output them only if debugging. By default they are written stderr,
1073 apparently, which is not desirable.
1074
6ec97b1b
PH
1075PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1076 queries.
1077
e22ca4ac
JJ
1078JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1079 --not options
1080
1081JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1082
33d73e3b
PH
1083PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1084 authenticated or an ident call has been made. Suppress the default
1085 values for $authenticated_id and $authenticated_sender (but permit -oMai
1086 and -oMas) when testing with -bh.
1087
9ecb03f3
PH
1088PH/24 Re-jigged the order of the tests in the default configuration so that the
1089 tests for valid domains and recipients precede the DNS black list and CSA
1090 tests, on the grounds that those ones are more expensive.
1091
084efe8d
PH
1092PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1093 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1094 This bug exists in every version of Exim that I still have, right back to
1095 0.12.
1096
366fc9f0
PH
1097PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1098 However, an attempt to turn on case-sensitivity in a regex key by
1099 including (?-i) didn't work because the subject string was already
1100 lowercased, and the effects were non-intuitive. It turns out that a
1101 one-line patch can be used to allow (?-i) to work as expected.
1102
c59f5781 1103
c887c79e
TF
1104Exim version 4.62
1105-----------------
1106
1107TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1108 other effects) broke the use of negated acl sub-conditions.
1109
1cce3af8
PH
1110PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1111 patch).
1112
afb3eaaf
PH
1113PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1114 "Deny" causes Exim to reject the incoming connection with a 554 error.
1115 Unfortunately, if there is a major crisis, such as a disk failure,
1116 tcp-wrappers gives "deny", whereas what one would like would be some
1117 kind of temporary error. A kludge has been added to help with this.
1118 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1119 554 error is used if errno is still zero or contains ENOENT (which occurs
1120 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1121 451 error is used.
1122
e173618b
PH
1123PH/03 Add -lutil to the default FreeBSD LIBS setting.
1124
dd16e114
PH
1125PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1126 errors. Otherwise a message that provokes a temporary error (when other
1127 messages do not) can cause a whole host to time out.
1128
f7fd3850
PH
1129PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1130 addresses were routed directly to files or pipes from a redirect router.
1131 File deliveries just didn't batch; pipe deliveries might have suffered
1132 odd errors.
1133
d87df92c
PH
1134PH/06 A failure to get a lock for a hints database would erroneously always say
1135 "Failed to get write lock", even when it was really a read lock.
1136
7e9f683d
PH
1137PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1138 of 0600. This has been changed to use the value of the lockfile_mode
1139 option (which defaults to 0600).
1140
bfad5236
PH
1141PH/08 Applied small patch from the Sieve maintainer.
1142
01c490df
PH
1143PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1144 folder from quota calculations, a direct delivery into this folder messed
1145 up the contents of the maildirsize file. This was because the regex was
1146 used only to exclude .Trash (or whatever) when the size of the mailbox
1147 was calculated. There was no check that a delivery was happening into an
1148 excluded directory. This bug has been fixed by ignoring all quota
1149 processing for deliveries into excluded directories.
1150
d6629cdc
PH
1151PH/10 Added the maildirfolder_create_regex option to appendfile.
1152
1cce3af8 1153
214e2000
PH
1154Exim version 4.61
1155-----------------
1156
1157PH/01 The code for finding all the local interface addresses on a FreeBSD
1158 system running IPv6 was broken. This may well have applied to all BSD
1159 systems, as well as to others that have similar system calls. The broken
1160 code found IPv4 interfaces correctly, but gave incorrect values for the
1161 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1162 that it would not match correctly against @[] and not recognize the IPv6
1163 addresses as local.
1164
f9daeae0
PH
1165PH/02 The ipliteral router was not recognizing addresses of the form user@
1166 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1167
7e66e54d
PH
1168PH/03 Added disable_ipv6.
1169
c8ea1597
PH
1170PH/04 Changed $reply_address to use the raw form of the headers instead of the
1171 decoded form, because it is most often used to construct To: headers
1172 lines in autoreplies, and the decoded form may well be syntactically
1173 invalid. However, $reply_address has leading white space removed, and all
1174 newlines turned into spaces so that the autoreply transport does not
1175 grumble.
1176
911f6fde
PH
1177PH/05 If group was specified without a user on a router, and no group or user
1178 was specified on a transport, the group from the router was ignored.
1179
47ca6d6c
PH
1180PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1181 for visible compile-time settings that can be used to change these
1182 numbers, for those that want even more. Backwards compatibility with old
1183 spool files has been maintained. However, going back to a previous Exim
1184 release will lost any variables that are in spool files.
1185
ed0e9820
PH
1186PH/07 Two small changes when running in the test harness: increase delay when
1187 passing a TCP/IP connection to a new process, in case the original
1188 process has to generate a bounce, and remove special handling of
1189 127.0.0.2 (sic), which is no longer necessary.
1190
eff37e47
PH
1191PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1192 be the same on different OS.
1193
1921d2ea
PH
1194PH/09 Moved a debug statement in filter processing to avoid a race problem when
1195 testing.
1196
b3f69ca8
JJ
1197JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1198 whether --show-vars was specified or not
1199
1200JJ/02 exipick: Added support for new ACL variable spool format introduced
1201 in 4.61-PH/06
1202
424a1c63
PH
1203PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1204 syntactically invalid From: or Reply-to: line, and a filter used this to
1205 generate an autoreply, and therefore failed to obtain an address for the
1206 autoreply, Exim could try to deliver to a non-existent relative file
1207 name, causing unrelated and misleading errors. What now happens is that
1208 it logs this as a hard delivery error, but does not attempt to create a
1209 bounce message.
1210
7a100415
PH
1211PH/11 The exinext utility has a -C option for testing purposes, but although
1212 the given file was scanned by exinext itself; it wasn't being passed on
1213 when Exim was called.
1214
19b9dc85
PH
1215PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1216 an end-of-file indication when reading a command response.
1217
309bd837
PH
1218PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1219 compiled. In many other places in Exim, IPv6 addresses are always
1220 recognized, so I have changed this. It also means that IPv4 domain
1221 literals of the form [IPV4:n.n.n.n] are now always recognized.
1222
59e82a2a
PH
1223PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1224 used if the router is not running as root, for example, when verifying at
1225 ACL time, or when using -bh. The debugging output from this situation was
1226 non-existent - all you got was a failure to exec. I have made two
1227 changes:
1228
1229 (a) Failures to set uid/gid, the current directory, or a process leader
1230 in a subprocess such as that created by queryprogram now generate
1231 suitable debugging ouput when -d is set.
1232
1233 (b) The queryprogram router detects when it is not running as root,
1234 outputs suitable debugging information if -d is set, and then runs
1235 the subprocess without attempting to change uid/gid.
1236
9edc04ce
PH
1237PH/15 Minor change to Makefile for building test_host (undocumented testing
1238 feature).
1239
1349e1e5
PH
1240PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1241 additional section of a DNS packet that returns MX or SRV records.
1242 Instead, it always explicitly searches for A/AAAA records. This avoids
1243 major problems that occur when a DNS server includes only records of one
1244 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1245 fixed another bug: if SRV records were looked up and the corresponding
1246 address records were *not* found in the additional section, the port
1247 values from the SRV records were lost.
1248
ea49d0e1
PH
1249PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1250 using the correct key (the original address) when searching the retry
1251 rules in order to find which one to use for generating the retry hint.
1252
064a94c9
PH
1253PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1254 adding the default one. Similarly, if it contains a Reply-To: header, the
1255 errors_reply_to option, if set, is not used.
1256
727071f8
PH
1257PH/19 When calculating a retry time, Exim used to measure the "time since
1258 failure" by looking at the "first failed" field in the retry record. Now
1259 it does not use this if it is later than than the arrival time of the
1260 message. Instead it uses the arrival time. This makes for better
1261 behaviour in cases where some deliveries succeed, thus re-setting the
1262 "first failed" field. An example is a quota failure for a huge message
1263 when small messages continue to be delivered. Without this change, the
1264 "time since failure" will always be short, possible causing more frequent
1265 delivery attempts for the huge message than are intended.
dd16e114 1266 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1267
f78eb7c6
PH
1268PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1269 $1, $2, $3) because the numerical variables can be reset during some
1270 expansion items (e.g. "match"), thereby losing the authentication data.
1271
21c28500
PH
1272PH/21 Make -bV show the size of off_t variables so that the test suite can
1273 decide whether to run tests for quotas > 2G.
1274
1275PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1276 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1277 filecount value is greater than 2G or if a quota value is greater than 2G
1278 on a system where the size of off_t is not greater than 4, a panic error
1279 is given.
1280
1688f43b
PH
1281PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1282 never match. The debug and -bh output now contains an explicit error
1283 message indicating a malformed IPv4 address or mask.
1284
1285PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1286 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1287 PH/23 above applies.
1288
9675b384
PH
1289PH/25 Do not write to syslog when running in the test harness. The only
1290 occasion when this arises is a failure to open the main or panic logs
1291 (for which there is an explicit test).
1292
6a3f1455
PH
1293PH/26 Added the /no_tell option to "control=freeze".
1294
dac79d3e
PH
1295PH/27 If a host name lookup failed very early in a connection, for example, if
1296 the IP address matched host_lookup and the reverse lookup yielded a name
1297 that did not have a forward lookup, an error message of the form "no IP
1298 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1299 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1300
5977a0b3
PH
1301PH/28 An enabling patch from MH: add new function child_open_exim2() which
1302 allows the sender and the authenticated sender to be set when
1303 submitting a message from within Exim. Since child_open_exim() is
1304 documented for local_scan(), the new function should be too.
1305
c91535f3
PH
1306PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1307 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1308 results in an empty string is now treated as unset.
1309
0d46a8c8
PH
1310PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1311
278c6e6c
PH
1312PH/31 Added sender_verify_fail logging option.
1313
2cbb4081
PH
1314PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1315 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1316 tidied the source and removed it altogether.
1317
3eef829e
PH
1318PH/33 When a queue run was abandoned because the load average was too high, a
1319 log line was always written; now it is written only if the queue_run log
1320 selector is set. In addition, the log line for abandonment now contains
1321 information about the queue run such as the pid. This is always present
1322 in "start" and "stop" lines but was omitted from the "abandon" line.
1323
1ab95fa6
PH
1324PH/34 Omit spaces between a header name and the colon in the error message that
1325 is given when verify = headers_syntax fails (if there are lots of them,
1326 the message gets confusing).
1327
230205fc
PH
1328PH/35 Change the default for dns_check_names_pattern to allow slashes within
1329 names, as there are now some PTR records that contain slashes. This check
1330 is only to protect against broken name servers that fall over on strange
1331 characters, so the fact that it applies to all lookups doesn't matter.
1332
75e0e026
PH
1333PH/36 Now that the new test suite is complete, we can remove some of the
1334 special code in Exim that was needed for the old test suite. For example,
1335 sorting DNS records because real resolvers return them in an arbitrary
1336 order. The new test suite's fake resolver always returns records in the
1337 same order.
1338
1339PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1340 bounces) except when queue_only is set, to avoid logging races between
1341 the different processes.
1342
145396a6
PH
1343PH/38 Panic-die if .include specifies a non-absolute path.
1344
3cd34f13
PH
1345PH/39 A tweak to the "H" retry rule from its user.
1346
11121d3d
JJ
1347JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1348 a label. They prevented compilation on older perls.
1349
1350JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1351 a warning to be raised on newish perls.
1352
1353JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1354 on queue. Changes to match documented behaviour of showing count of
1355 messages matching specified criteria.
1356
8def5aaf
PH
1357PH/40 Changed the default ident timeout from 30s to 5s.
1358
929ba01c
PH
1359PH/41 Added support for the use of login_cap features, on those BSD systems
1360 that have them, for controlling the resources used by pipe deliveries.
1361
2632889e
PH
1362PH/42 The content-scanning code uses fopen() to create files in which to put
1363 message data. Previously it was not paying any attention to the mode of
1364 the files. Exim runs with umask(0) because the rest of the code creates
1365 files with open(), and sets the required mode explicitly. Thus, these
1366 files were ending up world-writeable. This was not a big issue, because,
1367 being within the spool directory, they were not world-accessible. I have
1368 created a function called modefopen, which takes an additional mode
1369 argument. It sets umask(777), creates the file, chmods it to the required
1370 mode, then resets the umask. All the relevant calls to fopen() in the
1371 content scanning code have been changed to use this function.
1372
944a9c55
PH
1373PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1374 to 24 hours. This avoids potential overflow problems when processing G
1375 and H retry rules. I suspect nobody ever tinkers with this value.
1376
4a23603b
PH
1377PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1378
4730f942
PH
1379PH/45 When the plaintext authenticator is running as a client, the server's
1380 challenges are checked to ensure they are valid base64 strings. By
1381 default, the authentication attempt is cancelled if an invalid string is
1382 received. Setting client_ignore_invalid_base64 true ignores these errors.
1383 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1384 they are received. Thus, the responses can be made to depend on the
1385 challenges. If an invalid string is ignored, an empty string is placed in
1386 the variable.
1387
30dba1e6
PH
1388PH/46 Messages that are created by the autoreply transport now contains a
1389 References: header, in accordance with RFCs 2822 and 3834.
1390
382afc6b
PH
1391PH/47 Added authenticated_sender_force to the smtp transport.
1392
a86229cf
PH
1393PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1394
50c99ba6
PH
1395PH/49 Installed latest patch from the Sieve maintainer.
1396
d35e429d
PH
1397PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1398 was also set, the appendfile transport was unnecessarily scanning a
1399 directory of message files (e.g. for maildir delivery) to find the count
1400 of files (along with the size), even though it did not need this
1401 information. It now does the scan only if it needs to find either the
1402 size of the count of files.
1403
f90d018c
PH
1404PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1405
75def545
PH
1406PH/52 Two bugs concerned with error handling when the smtp transport is
1407 used in LMTP mode:
1408
1409 (i) Exim was not creating retry information for temporary errors given
1410 for individual recipients after the DATA command when the smtp transport
1411 was used in LMTP mode. This meant that they could be retried too
1412 frequently, and not timed out correctly.
1413
1414 (ii) Exim was setting the flag that allows error details to be returned
1415 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1416 recipients that were returned after the DATA command.
1417
1418PH/53 This is related to PH/52, but is more general: for any failing address,
1419 when detailed error information was permitted to be returned to the
1420 sender, but the error was temporary, then after the final timeout, only
1421 "retry timeout exceeded" was returned. Now it returns the full error as
1422 well as "retry timeout exceeded".
1423
c46782ef
PH
1424PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1425 do this, and (what is worse) MTAs that accept it.
1426
71fafd95
PH
1427PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1428 will now be deprecated.
1429
2c5db4fd
PH
1430PH/56 New os.c-cygwin from the Cygwin maintainer.
1431
9cf6b11a
JJ
1432JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1433 formats (previously only available in exim formats via -bpr, -bpru,
1434 and -bpra. Now also available in native and exiqgrep formats)
1435
1436JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1437 with very large, slow to parse queues
1438
1439JJ/08 exipick: added ! as generic prefix to negate any criteria format
1440
1441JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1442
898d150f
PH
1443PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1444 responses to authentication challenges, though it was showing the
1445 challenges; (ii) I've removed the CR characters from the debug output for
1446 SMTP output lines.
1447
46218253
PH
1448PH/58 Allow for the insertion of a newline as well as a space when a string
1449 is turned into more than one encoded-word during RFC 2047 encoding. The
1450 Sieve code now uses this.
1451
e97957bc
PH
1452PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1453 data_4xx, lost_connection, tls_required.
1454
81e509d7
PH
1455PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1456 message was being sent as an SMTP response.
1457
3d240ff7
PH
1458PH/61 Add -l and -k options to exicyclog.
1459
b37c4101
PH
1460PH/62 When verifying, if an address was redirected to one new address, so that
1461 verification continued, and the new address failed or deferred after
1462 having set something in $address_data, the value of $address_data was not
1463 passed back to the ACL. This was different to the case when no
1464 redirection occurred. The value is now passed back in both cases.
1465
79378e0f
PH
1466PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1467 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1468 use login_cap.h, so on its own it isn't the distinguishing feature. The
1469 new name refers directly to the setclassresources() function.
1470
e49c7bb4
PH
1471PH/65 Added configuration files for NetBSD3.
1472
d114ec46
PH
1473PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1474
f3d7df6c
PH
1475PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1476 is preferred over IPv4.
1477
715ab376
PH
1478PH/68 The bounce_return_message and bounce_return_body options were not being
1479 honoured for bounces generated during the reception of non-SMTP messages.
1480 In particular, this applied to messages rejected by the ACL. This bug has
1481 been fixed. However, if bounce_return_message is true and bounce_return_
1482 body is false, the headers that are returned for a non-SMTP message
1483 include only those that have been read before the error was detected.
1484 (In the case of an ACL rejection, they have all been read.)
1485
6b31b150
PH
1486PH/69 The HTML version of the specification is now built in a directory called
1487 spec_html instead of spec.html, because the latter looks like a path with
1488 a MIME-type, and this confuses some software.
1489
1490PH/70 Catch two compiler warnings in sieve.c.
1491
d515a917
PH
1492PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1493 function verify_get_ident() calls ip_connect() to connect a socket, but
1494 if the "connect()" function timed out, ip_connect() used to close the
1495 socket. However, verify_get_ident() also closes the socket later, and in
1496 between Exim writes to the log, which may get opened at this point. When
1497 the socket was closed in ip_connect(), the log could get the same file
1498 descriptor number as the socket. This naturally causes chaos. The fix is
1499 not to close the socket in ip_connect(); the socket should be closed by
1500 the function that creates it. There was only one place in the code where
1501 this was missing, in the iplookup router, which I don't think anybody now
1502 uses, but I've fixed it anyway.
1503
9b8fadde
PH
1504PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1505 well as to direct DNS lookups. Otherwise the handling of names in host
1506 lists is inconsistent and therefore confusing.
1507
214e2000 1508
5de37277
PH
1509Exim version 4.60
1510-----------------
1511
cc38ddbf
PH
1512PH/01 Two changes to the default runtime configuration:
1513
1514 (1) Move the checks for relay_from_hosts and authenticated clients from
1515 after to before the (commented out) DNS black list checks.
1516
1517 (2) Add control=submission to the relay_from_hosts and authenticated
1518 clients checks, on the grounds that messages accepted by these
1519 statements are most likely to be submissions.
5de37277 1520
72fdd6ae
PH
1521PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1522
1523 (1) Generate an error if the third argument for the ${prvs expansion is
1524 not a single digit.
1525
1526 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1527 string.
1528
1529 (3) Reset the variables that are obtained from the first argument of
1530 ${prvscheck and used in the second argument before leaving the code,
1531 because their memory is reclaimed, so using them afterwards may do
1532 silly things.
1533
1534 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1535 one (it's much easier than Tom thought :-).
1536
1537 (5) Because of (4), we can now allow for the use of $prvscheck_result
1538 inside the third argument.
cb9328de 1539
cb741023
PH
1540PH/03 For some reason, the default setting of PATH when running a command from
1541 a pipe transport was just "/usr/bin". I have changed it to
1542 "/bin:/usr/bin".
1543
f174f16e
PH
1544PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1545 anything to be listed in the output from -bV.
b2f5a032 1546
c25242d7
PH
1547PH/05 When a filter generated an autoreply, the entire To: header line was
1548 quoted in the delivery log line, like this:
1549
1550 => >A.N.Other <ano@some.domain> <original@ddress> ...
1551
1552 This has been changed so that it extracts the operative address. There
1553 may be more than one such address. If so, they are comma-separated, like
1554 this:
1555
1556 => >ano@some.domain,ona@other.domain <original@ddress> ...
1557
82c19f95
PH
1558PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1559 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1560 not being looked up in the rDNS to get a host name, Exim was showing the
1561 IP address twice in Received: lines, even though the IP addresses were
1562 identical. For example:
1563
1564 Received: from [1.2.3.4] (helo=[1.2.3.4])
1565
1566 However, if the real host name was known, it was omitting the HELO data
1567 if it matched the actual IP address. This has been tidied up so that it
1568 doesn't show the same IP address twice.
1569
d7ffbc12
PH
1570PH/07 When both +timestamp and +memory debugging was on, the value given by
1571 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1572 called by the debug printing, thereby overwriting the timestamp buffer.
1573 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1574
9f526266
PH
1575PH/08 When the original message was included in an autoreply transport, it
1576 always said "this is a copy of the message, including all the headers",
1577 even if body_only or headers_only was set. It now gives an appropriate
1578 message.
1579
87fcc8b9
PH
1580PH/09 Applied a patch from the Sieve maintainer which:
1581
1582 o fixes some comments
1583 o adds the (disabled) notify extension core
1584 o adds some debug output for the result of if/elsif tests
1585 o points to the current vacation draft in the documentation
1586 and documents the missing references header update
1587
1588 and most important:
1589
1590 o fixes a bug in processing the envelope test (when testing
1591 multiple envelope elements, the last element determinted the
1592 result)
1593
456682f5
PH
1594PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1595 Electronic Mail") by including:
1596
1597 Auto-submitted: auto-generated
1598
1599 in the messages that it generates (bounce messages and others, such as
1600 warnings). In the case of bounce messages for non-SMTP mesages, there was
1601 also a typo: it was using "Auto_submitted" (underscore instead of
1602 hyphen). Since every message generated by Exim is necessarily in response
1603 to another message, thes have all been changed to:
1604
1605 Auto-Submitted: auto-replied
1606
1607 in accordance with these statements in the RFC:
1608
1609 The auto-replied keyword:
1610
1611 - SHOULD be used on messages sent in direct response to another
1612 message by an automatic process,
1613
1614 - MUST NOT be used on manually-generated messages,
1615
1616 - MAY be used on Delivery Status Notifications (DSNs) and Message
1617 Disposition Notifications (MDNs),
1618
1619 - MUST NOT be used on messages generated by automatic or periodic
1620 processes, except for messages which are automatic responses to
1621 other messages.
1622
3e46c1aa
PH
1623PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1624 to the default Received: header definition.
456682f5 1625
49826d12
PH
1626PH/12 Added log selector acl_warn_skipped (default on).
1627
eba0c039
PH
1628PH/13 After a successful wildlsearch lookup, discard the values of numeric
1629 variables because (a) they are in the wrong storage pool and (b) even if
1630 they were copied, it wouldn't work properly because of the caching.
1631
a0d6ba8a
PH
1632PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1633 checking when decoding. Apparently there are clients that generate
1634 overlong encoded strings. Why am I not surprised?
1635
f0917727
PH
1636PH/15 If the first argument of "${if match_address" was not empty, but did not
1637 contain an "@" character, Exim crashed. Now it writes a panic log message
1638 and treats the condition as false.
1639
096fee00
PH
1640PH/16 In autoreply, treat an empty string for "once" the same as unset.
1641
024bd3c2
PH
1642PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1643 extension "envelope-auth". The code is finished and in agreement with
1644 other implementations, but there is no documentation so far and in fact,
1645 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1646 not changing the active code.
1647
1648 Print executed "if" and "elsif" statements when debugging is used. This
1649 helps a great deal to understand what a filter does.
1650
1651 Document more things not specified clearly in RFC3028. I had all this
1652 sorted out, when out of a sudden new issues came to my mind. Oops."
1653
df199fec
PH
1654PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1655 (Bugzilla #53).
1656
d27f1df3
PH
1657PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1658 canonical form (as documented). However, after a host name lookup from
1659 the IP address, check_host() was doing a simple string comparison with
1660 addresses acquired from the DNS when checking that the found name did
1661 have the original IP as one of its addresses. Since any found IPv6
1662 addresses are likely to be in abbreviated form, the comparison could
1663 fail. Luckily, there already exists a function for doing the comparison
1664 by converting both addresses to binary, so now that is used instead of
1665 the text comparison.
1666
96776534
PH
1667PH/20 There was another similar case to PH/19, when a complete host name was
1668 given in a host list; looking up its IP address could give an abbreviated
1669 form, whereas the current host's name might or might not be abbreviated.
1670 The same fix has been applied.
1671
5de37277 1672
9a799bc0
PH
1673Exim version 4.54
1674-----------------
1675
1676PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1677 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1678 It now does.
1679
99a4b039
PH
1680PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1681 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1682
1683PH/03 Typo: missing ".o" in src/pcre/Makefile.
1684
4b233853
PH
1685PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1686 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1687 Also, for "Auto-Submitted", treat anything other than "no" as
1688 non-personal, in accordance with RFC 3834. (Previously it treated
1689 anything starting "auto-" as non-personal.)
1690
8857ccfd
PH
1691TF/01 The control=submission/name=... option had a problem with syntax
1692 errors if the name included a slash character. The /name= option
1693 now slurps the rest of the string, so it can include any characters
1694 but it must come last in the list of options (after /sender_retain
1695 or /domain=).
1696
433a2980
PH
1697PH/05 Some modifications to the interface to the fake nameserver for the new
1698 testing suite.
1699
3e46c1aa 1700
9a799bc0 1701
e3a311ba
TK
1702Exim version 4.53
1703-----------------
1704
1705TK/01 Added the "success_on_redirect" address verification option. See
1706 NewStuff for rationale and an example.
1707
13b685f9
PH
1708PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1709
395ff96d
PH
1710PH/02 Patch to exigrep to allow it to work on syslog lines.
1711
5b68f6e4
PH
1712PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1713 fread() to skip over the body file's header line, because in Cygwin the
1714 header line is locked and is inaccessible.
1715
1ab52c69
PH
1716PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1717 co-exist for some time) to make it clear that it is the Exim ID that is
1718 referenced, not the Message-ID: header line.
1719
b07e6aa3
PH
1720PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1721 string_format() function, because snprintf() does not exist on all
1722 operating systems.
1723
254e032f
PH
1724PH/06 The use of forbid_filter_existstest now also locks out the use of the
1725 ${stat: expansion item.
1726
3af76a81
PH
1727PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1728 protocol synchronization error", to keep the pedants happy.
1729
2548ba04
PH
1730PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1731 well as for IRIX systems, when gcc is being used. See the host.c source
1732 file for comments.
1733
b6c6011d
PH
1734PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1735
cf39cf57
PH
1736PH/10 Named domain lists were not working if used in a queue_smtp_domains
1737 setting.
1738
f1513293
PH
1739PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1740 transport and to the smtp transport in LMTP mode.
1741
727549a4
PH
1742TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1743
af46795e
PH
1744PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1745 run a filter in a subprocess. This could lead to confusion in subsequent
1746 lookups in the parent process. There should also be a search_tidyup() at
1747 the end of the subprocess.
1748
d7b47fd0
PH
1749PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1750 only if the host matched helo_try_verify_hosts, which caused the
1751 verification to occur when the EHLO/HELO command was issued. The ACL just
1752 tested the remembered result. Now, if a previous verification attempt has
1753 not happened, "verify = helo" does it there and then.
1754
ee744174
JJ
1755JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1756
b582ab87
PH
1757TK/03 Fix log output including CR from clamd.
1758
41a13e0a
PH
1759PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1760 exist provoked a memory error which could cause a segfault.
1761
f625cc5a
PH
1762PH/15 Installed PCRE 6.2
1763
1764PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1765
21f7af35
PH
1766PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1767 of the problem. Specifically, suggested +O2 rather than +O1 for the
1768 HP-UX compiler.
1769
31480e42
PH
1770PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1771
2d280592
PH
1772PH/20 If a delivery was routed to a non-standard port by means of an SRV
1773 record, the port was not correctly logged when the outgoing_port log
1774 selector was set (it logged the transort's default port).
1775
7cd1141b
PH
1776PH/21 Added support for host-specific ports to manualroute, queryprogram,
1777 fallback_hosts, and "hosts" in the smtp transport.
1778
1779PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1780 host errors such as "Connection refused".
1781
750af86e
PH
1782PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1783 authentication with radiusclient 0.4.9:
1784
1785 - Error returned from rc_read_config was caught wrongly
1786 - Username/password not passed on to radius server due to wrong length.
1787
1788 The presumption is that some radiusclient API changes for 4.51/PH/17
1789 were not taken care of correctly. The code is still untested by me (my
1790 Linux distribution still has 0.3.2 of radiusclient), but it was
1791 contributed by a Radius user.
1792
1793PH/24 When doing a callout, the value of $domain wasn't set correctly when
1794 expanding the "port" option of the smtp transport.
1795
4304270b
TK
1796TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1797 while reading a MIME header. Thanks to Tom Hughes for a patch.
1798
750af86e
PH
1799PH/24 Include config.h inside local_scan.h so that configuration settings are
1800 available.
1801
64ffc24f
PH
1802PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1803 that in an ACL for RCPT (for example), you can examine exactly what was
1804 received.
1805
5dd9625b
PH
1806PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1807 commands, but it was not correctly comparing the address with the actual
1808 client host address. Thus, it would show the EHLO address in Received:
1809 header lines when this was not necessary.
1810
5591031b
PH
1811PH/27 Added the % operator to ${eval:}.
1812
ba18e66a
PH
1813PH/28 Exim tries to create and chdir to its spool directory when it starts;
1814 it should be ignoring failures (because with -C, for example, it has lost
1815 privilege). It wasn't ignoring creation failures other than "already
1816 exists".
1817
9cec981f
PH
1818PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1819 -bV or -d is used.
1820
aa2b5c79
PH
1821PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1822 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1823 too many continuations, the temporary file was not being removed, and the
1824 return code was incorrect.
aa2b5c79 1825
48a53b7f
PH
1826PH/31 Missing "BOOL" in function definition in filtertest.c.
1827
1c59d63b
PH
1828PH/32 Applied Sieve patches from the maintainer.
1829
671012da
TK
1830TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1831
1509d3a8
PH
1832PH/33 Added "verify = not_blind".
1833
1834PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1835 Local/Makefile (with some defaults set). These are used in built scripts
1836 such as exicyclog, but they have never been used in the exim_install
1837 script (though there are many overriding facilities there). I have
1838 arranged that the exim_install script now takes note of these two
1839 settings.
1840
1841PH/35 Installed configuration files for Dragonfly.
1842
2fe1a124
PH
1843PH/36 When a locally submitted message by a trusted user did not contain a
1844 From: header, and the sender address was obtained from -f or from an SMTP
1845 MAIL command, and the trusted user did not use -F to supply a sender
1846 name, $originator_name was incorrectly used when constructing a From:
1847 header. Furthermore, $originator_name was used for submission mode
1848 messages from external hosts without From: headers in a similar way,
1849 which is clearly wrong.
1850
8800895a
PH
1851PH/37 Added control=suppress_local_fixups.
1852
ccfdb010
PH
1853PH/38 When log_selector = +received_sender was set, and the addition of the
1854 sender made the log line's construction buffer exactly full, or one byte
1855 less than full, an overflow happened when the terminating "\n" was
1856 subsequently added.
1857
1130bfb0
PH
1858PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1859 when the result of a list match is failure because a DNS lookup failed.
1860
ebcb507f
PH
1861PH/40 RM_COMMAND is now used in the building process.
1862
c35e155c
PH
1863PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1864 the "build-* directories that it finds.
1865
95d1f782
PH
1866PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1867 address in a domain literal was a prefix of an interface address.
1868
fd6de02e
PH
1869PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1870 when verifying a sender address, unless rewrite_headers is false.
1871
58de37c5
PH
1872PH/44 Wrote a long comment about why errors_to addresses are verified as
1873 recipients, not senders.
1874
261cf466
TF
1875TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1876 the ratelimit ACL was added.
1877
3ee512ff
PH
1878PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1879
e08c430f
PH
1880PH/46 Added extra information about PostgreSQL errors to the error string.
1881
bef5a11f
PH
1882PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1883 avoiding the need to install special zones in a real server. This is
1884 backwards compatible; if it can't find the fake resolver, it drops back.
1885 Thus, both old and new test suites can be run.
1886
7546de58
TF
1887TF/02 Added util/ratelimit.pl
1888
e5d5a95f
TF
1889TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1890 clock is set back in time.
1891
2e88a017
TF
1892TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1893 Candler <B.Candler@pobox.com>.
1894
a5f65aa4
TF
1895TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1896 OK for addresses that are the result of redirections.
1897
e7726cbf
PH
1898PH/48 A number of further additions for the benefit of the new test suite,
1899 including a fake gethostbyname() that interfaces to the fake DNS resolver
1900 (see PH/47 above).
1901
a7fdad5b
TF
1902TF/06 The fix for widen_domains has also been applied to qualify_single and
1903 search_parents which are the other dnslookup options that can cause
1904 header rewrites.
1905
6af56900
PH
1906PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1907 type ("H").
1908
0925ede6
PH
1909PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1910
66afa403
TF
1911TF/07 Exim produced the error message "an SRV record indicated no SMTP
1912 service" if it encountered an MX record with an empty target hostname.
1913 The message is now "an MX or SRV record indicated no SMTP service".
1914
0154e85a
TF
1915TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1916 if the DNS of the sending site is misconfigured. This is quite a
1917 common situation. This change restores the behaviour of treating a
1918 helo verification defer as a failure.
1919
16f12c76
PH
1920PH/51 If self=fail was set on a router, the bounce message did not include the
1921 actual error message.
1922
bbe902f0 1923
e5a9dba6
PH
1924Exim version 4.52
1925-----------------
1926
1927TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1928
22c3b60b
PH
1929PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1930 command itself ended in error, the underlying message about the transport
1931 filter timeout was being overwritten with the pipe command error. Now the
1932 underlying error message should be appended to the second error message.
1933
06a9b4b5
PH
1934TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1935
c1ac6996
PH
1936PH/02 Reduce the amount of output that "make" produces by default. Full output
1937 can still be requested.
1938
9c7a242c
PH
1939PH/03 The warning log line about a condition test deferring for a "warn" verb
1940 was being output only once per connection, rather than after each
1941 occurrence (because it was using the same function as for successful
1942 "warn" verbs). This seems wrong, so I have changed it.
1943
87ba3f5f
PH
1944TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1945 it should not have, which might have caused a crash in the right
1946 circumstances, but probably never did.
1947
1948PH/04 Installed a modified version of Tony Finch's patch to make submission
1949 mode fix the return path as well as the Sender: header line, and to
1950 add a /name= option so that you can make the user's friendly name appear
1951 in the header line.
1952
29aba418
TF
1953TF/03 Added the control = fakedefer ACL modifier.
1954
fe0dab11
TF
1955TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1956 Mark Lowes for thorough testing.
870f6ba8 1957
11d337a4
TK
1958TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1959
1960TK/03 Merged latest SRS patch from Miles Wilton.
1961
415c8f3b
PH
1962PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1963 with the definition in sysexits.h (which is #included earlier).
1964 Fortunately, Exim does not actually use EX_OK. The code used to try to
1965 preserve the sysexits.h value, by assumimg that macro definitions were
1966 scanned for macro replacements. I have been disabused of this notion,
1967 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1968
958541e9
PH
1969PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1970 in the smtp transport. When a block could not be written in a single
1971 write() function, the timeout was being re-applied to each part-write.
1972 This seems wrong - if the receiver was accepting one byte at a time it
1973 would take for ever. The timeout is now adjusted when this happens. It
1974 doesn't have to be particularly precise.
1975
c206415f
TK
1976TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1977 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1978
2a4be8f9
PH
1979PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1980 without a domain if the check to <postmaster@domain> fails.
1981
1cba11c5
SC
1982SC/01 Eximstats: added -xls and the ability to specify output files
1983 (patch written by Frank Heydlauf).
1984
1985SC/02 Eximstats: use FileHandles for outputing results.
1986
1987SC/03 Eximstats: allow any combination of xls, txt, and html output.
1988
1989SC/04 Eximstats: fixed display of large numbers with -nvr option
1990
1991SC/05 Eximstats: fixed merging of reports with empty tables.
1992
1993SC/06 Eximstats: added the -include_original_destination flag
1994
1995SC/07 Eximstats: removed tabs and trailing whitespace.
1996
1005d00e
TK
1997TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1998
1999TK/06 MBOX spool code: Add real "From " MBOX separator line
2000 so the .eml file is really in mbox format (even though
2001 most programs do not really care). Patch from Alex Miller.
2002
2003TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2004 The latter is generated from $received_to and is only set if the
2005 message has one envelope recipient. SA can use these headers,
2006 obviously out-of-the-box. Patch from Alex Miller.
2007
9b4768fa
PH
2008PH/08 The ${def test on a variable was returning false if the variable's
2009 value was "0", contrary to what the specification has always said!
2010 The result should be true unless the variable is empty.
2011
2012PH/09 The syntax error of a character other than { following "${if
2013 def:variable_name" (after optional whitespace) was not being diagnosed.
2014 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2015 accidental colon was present, for example, could give incorrect results.
2016
0d7eb84a
PH
2017PH/10 Tidied the code in a number of places where the st_size field of a stat()
2018 result is used (not including appendfile, where other changes are about
2019 to be made).
2020
2021PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2022 This involved changing a lot of size variables from int to off_t. It
2023 should work with maildirs and everything.
2024
40727bee
TK
2025TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2026 spamd dying while we are connected to it.
2027
554d2369
TF
2028TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2029 <jgh@wizmail.org>
2030
1f922db1
PH
2031PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2032 function for BDB 4.3.
2033
ef213c3b
PH
2034PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2035
8ac170f3
PH
2036PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2037 the sources for PCRE have been re-arranged and more files are now
2038 involved.
2039
b1c749bb
PH
2040PH/15 The code I had for printing potentially long long variables in PH/11
2041 above was not the best (it lost precision). The length of off_t variables
2042 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2043 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2044 to be "long long int" or "long int". This is needed for the internal
2045 formatting function string_vformat().
b1c749bb 2046
4aac9b49
PH
2047PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2048 the configuration file to be ":syslog", then the script "guesses" where
2049 the logs files are, rather than using the compiled in default. In our
2050 case the guess is not the same as the compiled default, so the script
2051 suddenly stopped working when I started to use syslog. The patch checks
2052 to see if log_file_path is "". If so, it attempts to read it from exim
2053 with no configuration file to get the compiled in version, before it
2054 falls back to the previous guessing code."
2055
294520c8
TK
2056TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2057 implementing BATV in an Exim configuration. See NewStuff for the gory
2058 details.
2059
5bd022fe
PH
2060PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2061 Makefile that are specific to HP-UX.
2062
90e9ce59
PH
2063PH/18 If the "use_postmaster" option was set for a recipient callout together
2064 with the "random" option, the postmaster address was used as the MAIL
2065 FROM address for the random test, but not for the subsequent recipient
2066 test. It is now used for both.
2067
5ea81592
PH
2068PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2069 patch removes a few documentation additions to RFC 3028, because the
2070 latest draft now contains them. It adds the new en;ascii-case comparator
2071 and a new error check for 8bit text in MIME parts. Comparator and
2072 require names are now matched exactly. I enabled the subaddress
2073 extension, but it is not well tested yet (read: it works for me)."
2074
c6c2dc1d
PH
2075PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2076 rework some of the code of TK/09 above to avoid the hardwired use of
2077 "%lld" and "long long". Replaced the call to snprintf() with a call to
2078 string_vformat().
2079
fffffe4c
PH
2080PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2081 records point to non-existent hosts", "retry timeout exceeded", and
2082 "retry time not reached for any host after a long failure period".
ca02eafb 2083
9a26b6b2
PH
2084PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2085 experimental DomainKeys support:
2086
2087 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2088 (2) On an error such as an illegally used "control", the wrong name for
2089 the control was given.
2090
2091 These problems did NOT occur unless DomainKeys support was compiled.
2092
4aee0225
PH
2093PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2094
32d668a5
PH
2095PH/24 Added ${if match_ip condition.
2096
8187c3f3
PH
2097PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2098 databases so that it will be absolutely obvious if a crash occurs in the
2099 DB library. This is a regular occurrence (often caused by mis-matched
2100 db.h files).
2101
ff790e47 2102PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2103 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2104 picked up on a user's system that detects such things. There doesn't seem
2105 to be a gcc warning option for this - only an attribute that has to be
2106 put on the function's prototype. It seems that in Fedora Core 4 they have
2107 set this on a number of new functions. No doubt there will be more in due
2108 course.
ff790e47 2109
5417f6d1
PH
2110PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2111 specify a transport. However, if an address that was verified by such a
2112 router was the subject of a callout, Exim crashed because it tried to
2113 read the rcpt_include_affixes from the non-existent transport. Now it
2114 just assumes that the setting of that option is false. This bug was
2115 introduced by 4.51/PH/31.
2116
59cf8544
PH
2117PH/28 Changed -d+all to exclude +memory, because that information is very
2118 rarely of interest, but it makes the output a lot bigger. People tend to
2119 do -d+all out of habit.
2120
e7ad8a65
PH
2121PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2122 code in os-type was giving problems when libc.so lives in lib64, like on
2123 x86_64 Fedora Core.
2124
ade42478
PH
2125PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2126 aren't the modern standard, and it seems that some systems' include files
2127 don't always have them. Exim was already checking for some of the newer
2128 ones like T_AAAA, and defining it itself. I've added checks for all the
2129 record types that Exim uses.
2130
182ad5cf
PH
2131PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2132 not automatically generating a new one, as it is supposed to. This
2133 prevented TLS from working. If the file did exist, but contained invalid
2134 data, a new version was generated, as expected. It was only the case of a
2135 non-existent file that was broken.
2136
b0d9fc80
TK
2137TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2138 with a change in libdomainkeys > 0.64.
2139
2140TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2141 from DNS. If the selector record carries the flag, it now has
2142 precedence over the domain-wide flag.
2143
2144TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2145
47c7a64a
PH
2146PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2147 the use of a port name that isn't defined in /etc/services) occurred, the
2148 message was deferred as in a normal delivery, and thus remained on the
2149 spool, instead of being failed because of the mua_wrapper setting. This
2150 is now fixed, and I tidied up some of the mua_wrapper messages at the
2151 same time.
2152
a388bce4
SC
2153SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2154 the messages in a hash of arrays rather than using individual hashes.
2155 This is a bit cleaner and results in dramatic memory savings, albeit
2156 at a slight CPU cost.
2157
2158SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2159 as requested by Marc Sherman.
2160
2161SC/10 Eximstats: added histograms for user specified patterns as requested
2162 by Marc Sherman.
2163
0793e4ed
SC
2164SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2165
c58b88df
PH
2166PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2167 fopen() in the content-scanning modules that did not already have it.
2168
e7ad8a65 2169
7982096b
PH
2170Exim version 4.51
2171-----------------
2172
1a46a8c5
PH
2173TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2174 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2175
2f079f46 2176TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2177
2178TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2179
2180PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2181 to test Sieve filters that use "vacation".
2182
2183PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2184 that changes the way the GnuTLS parameters are stored in the cache file.
2185 The new format can be generated externally. For backward compatibility,
2186 if the data in the cache doesn't make sense, Exim assumes it has read an
2187 old-format file, and it generates new data and writes a new file. This
2188 means that you can't go back to an older release without removing the
2189 file.
2190
2191PH/03 A redirect router that has both "unseen" and "one_time" set does not
2192 work if there are any delivery delays because "one_time" forces the
2193 parent to be marked "delivered", so its unseen clone is never tried
2194 again. For this reason, Exim now forbids the simultaneous setting of
2195 these two options.
2196
2197PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2198 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2199 entry if you want to know the details. The fix, however, neglected to
2200 consider the case when local delivery batching is involved. The test for
2201 "previously delivered" was not happening when checking to see if an
2202 address could be batched with a previous (undelivered) one; under
2203 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2204 address.
1a46a8c5
PH
2205
2206PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2207 in its include files, and this causes problems building Exim.
2208
2209PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2210 header_syntax) but Exim was just ignoring anything given after a slash.
2211 In particular, this caused confusion with an attempt to use "verify =
2212 reverse_host_lookup/defer_ok". An error is now given when options are
2213 supplied for verify items that do not have them. (Maybe reverse_host_
2214 lookup should have a defer_ok option, but that's a different point.)
2215
2216PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2217 defined by RFC 821) to 2048, because there were problems with some AUTH
2218 commands, and RFC 1869 says the size should be increased for extended
2219 SMTP commands that take arguments.
2220
2221PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2222 Finch).
2223
2224PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2225 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2226
49c2d5ea
PH
2227PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2228 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2229 whatever). Otherwise the password may appear in the log. Following change
2230 PH/42 below, there is no longer a chance of it appearing in a bounce
2231 message.
49c2d5ea 2232
bf759a8b
PH
2233PH/11 Installed exipick version 20050225.0 from John Jetmore.
2234
83364d30
PH
2235PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2236 of its addresses was ever tried. (Bugzilla bug #2.)
2237
7999bbd7
PH
2238PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2239 the result incorrectly in the debug output. (It correctly added a newline
2240 to what was transported.)
2241
7dbf77c9
PH
2242TF/01 Added $received_time.
2243
74e0617f
PH
2244PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2245 commented out examples of how to interface to a virus scanner and to
2246 SpamAssassin. Also added commented examples of av_scanner and
2247 spamd_address settings.
2248
2f079f46
PH
2249PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2250 and controls are allowed in which ACLs. There were a couple of minor
2251 errors. Some of the entries in the conditions table (which is a table of
2252 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2253 negation of where the condition IS allowed.
2254
8c841523
PH
2255PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2256
7766a4f0
PH
2257PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2258 header file does not have a version number, so I've had to invent a new
2259 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2260 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2261 radiusclient), but it was contributed by a Radius user.
2262
8b417f2c
PH
2263PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2264 files or directories, for OpenSSL.
2265
901f42cb
PH
2266PH/19 When an Exim process that is running as root has to create an Exim log
2267 file, it does so in a subprocess that runs as exim:exim so as to get the
2268 ownership right at creation (otherwise, other Exim processes might see
2269 the file with the wrong ownership). There was no test for failure of this
2270 fork() call, which would lead to the process getting stuck as it waited
2271 for a non-existent subprocess. Forks do occasionally fail when resources
2272 run out. I reviewed all the other calls to fork(); they all seem to check
2273 for failure.
2274
f9b9210e
PH
2275PH/20 When checking for unexpected SMTP input at connect time (before writing
2276 the banner), Exim was not dealing correctly with a non-positive return
2277 from the read() function. If the client had disconnected by this time,
2278 the result was a log entry for a synchronization error with an empty
2279 string after "input=" when read() returned zero. If read() returned -1
2280 (an event I could not check), uninitialized data bytes were printed.
2281 There were reports of junk text (parts of files, etc) appearing after
2282 "input=".
2283
54cdb463
PH
2284PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2285
cf00dad6
PH
2286PH/22 Added support for macro redefinition, and (re)definition in between
2287 driver and ACL definitions.
2288
acb1b346
PH
2289PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2290 forgetting to use the resulting value; it was using the unexpanded value.
2291
c5ddb310
PH
2292PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2293 hadn't been configured. The fix is from Juergen Kreileder, who
2294 understands it better than I do:
2295
2296 "Here's what I see happening with three configured cyrus_sasl
2297 authenticators configured (plain, login, cram-md5):
2298
2299 On startup auth_cyrus_sasl_init() gets called for each of these.
2300 This means three calls to sasl_listmech() without a specified mech_list.
2301 => SASL tests which mechs of all available mechs actually work
2302 => three warnings about OTP not working
2303 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2304
2305 With the patch, sasl_listmech() also gets called three times. But now
2306 SASL's mech_list option is set to the server_mech specified in the the
2307 authenticator. Or in other words, the answer from sasl_listmech()
2308 gets limited to just the mech you're testing for (which is different
2309 for each call.)
2310 => the return list contains just 'plain' or 'login', 'cram-md5' or
2311 nothing depending on the value of ob->server_mech.
2312
2313 I've just tested the patch: Authentication still works fine,
2314 unavailable mechs specified in the exim configuration are still
2315 caught, and the auth.log warnings about OTP are gone."
2316
31619da6
PH
2317PH/25 When debugging is enabled, the contents of the command line are added
2318 to the debugging output, even when log_selector=+arguments is not
2319 specified.
2320
bebaf0fc
PH
2321PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2322 answer is "GNU", and only if the return is "GNU/something" is the answer
2323 "Linux".
2324
475fe28a
PH
2325PH/27 $acl_verify_message is now set immediately after the failure of a
2326 verification in an ACL, and so is available in subsequent modifiers. In
2327 particular, the message can be preserved by coding like this:
2328
2329 warn !verify = sender
2330 set acl_m0 = $acl_verify_message
2331
2332 Previously, $acl_verify_message was set only while expanding "message"
2333 and "log_message" when a very denied access.
2334
7e8bec7a
PH
2335PH/28 Modified OS/os.c-Linux with
2336
2337 -#ifndef OS_LOAD_AVERAGE
2338 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2339
2340 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2341 nomenclature these days.)
2342
e4a89c47
PH
2343PH/29 Installed patch from the Sieve maintainer that adds the options
2344 sieve_useraddress and sieve_subaddress to the redirect router.
2345
5ca2a9a1
PH
2346PH/30 In these circumstances:
2347 . Two addresses routed to the same list of hosts;
2348 . First host does not offer TLS;
2349 . First host accepts first address;
2350 . First host gives temporary error to second address;
2351 . Second host offers TLS and a TLS session is established;
2352 . Second host accepts second address.
2353 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2354 and peerdn, if requested) that were in fact used only for the second
2355 address.
7e8bec7a 2356
c688b954
PH
2357PH/31 When doing a callout as part of verifying an address, Exim was not paying
2358 attention to any local part prefix or suffix that was matched by the
2359 router that accepted the address. It now behaves in the same way as it
2360 does for delivery: the affixes are removed from the local part unless
2361 rcpt_include_affixes is set on the transport.
2362
fed77020
PH
2363PH/32 Add the sender address, as F=<...>, to the log line when logging a
2364 timeout during the DATA phase of an incoming message.
2365
7fe1560f
PH
2366PH/33 Sieve envelope tests were broken for match types other than :is. I have
2367 applied a patch sanctioned by the Sieve maintainer.
c688b954 2368
ebb6e6d5
PH
2369PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2370 the uid or gid is negative. A case of a negative gid caused this to be
2371 noticed. The fix allows for either to be negative.
2372
9c4e8f60
PH
2373PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2374 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2375 overlooked.
2376
2377PH/36 The change PH/12 above was broken. Fixed it.
2378
d7174846
PH
2379PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2380 the grounds that routing the same address twice would always produce the
2381 same answer. This might have been true once, but it is certainly no
2382 longer true now. Routing a child address may depend on the previous
2383 routing that produced that child. Some complicated redirection strategies
2384 went wrong when messages had multiple recipients, and made Exim's
2385 behaviour dependent on the order in which the addresses were given.
2386
2387 I have moved the duplicate checking until after the routing is complete.
2388 Exim scans the addresses that are assigned to local and remote
2389 transports, and removes any duplicates. This means that more work will be
2390 done, as duplicates will always all be routed, but duplicates are
2391 presumably rare, so I don't expect this is of any significance.
2392
2393 For deliveries to pipes, files, and autoreplies, the duplicate checking
2394 still happens during the routing process, since they are not going to be
2395 routed further.
2396
cfe75fc3
PH
2397PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2398 It corrects a timeout issue with spamd. This is Ian's comment: "The
2399 background is that sometimes spamd either never reads data from a
2400 connection it has accepted, or it never writes response data. The exiscan
2401 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2402 blindly assumes that writes won't block so it may never time out."
2403
be22d70e
PH
2404PH/39 Allow G after quota size as well as K and M.
2405
0612b098
PH
2406PH/40 The value set for $authenticated_id in an authenticator may not contain
2407 binary zeroes or newlines because the value is written to log lines and
2408 to spool files. There was no check on this. Now the value is run through
2409 the string_printing() function so that such characters are converted to
2410 printable escape sequences.
2411
2e0c1448
PH
2412PH/41 $message_linecount is a new variable that contains the total number of
2413 lines in the message. Compare $body_linecount, which is the count for the
2414 body only.
2415
447d236c
PH
2416PH/42 Exim no longer gives details of delivery errors for specific addresses in
2417 bounce and delay warning messages, except in certain special cases, which
2418 are as follows:
2419
2420 (a) An SMTP error message from a remote host;
2421 (b) A message specified in a :fail: redirection;
2422 (c) A message specified in a "fail" command in a system filter;
2423 (d) A message specified in a FAIL return from the queryprogram router;
2424 (e) A message specified by the cannot_route_message router option.
2425
2426 In these cases only, Exim does include the error details in bounce and
2427 warning messages. There are also a few cases where bland messages such
2428 as "unrouteable address" or "local delivery error" are given.
2429
d20976dc
PH
2430PH/43 $value is now also set for the "else" part of a ${run expansion.
2431
f656d135
PH
2432PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2433 being worked on, but at least Exim now implements the latest version to
2434 play with."
2435
2e2a30b4
PH
2436PH/45 In a pipe transport, although a timeout while waiting for the pipe
2437 process to complete was treated as a delivery failure, a timeout while
2438 writing the message to the pipe was logged, but erroneously treated as a
2439 successful delivery. Such timeouts include transport filter timeouts. For
2440 consistency with the overall process timeout, these timeouts are now
2441 treated as errors, giving rise to delivery failures by default. However,
2442 there is now a new Boolean option for the pipe transport called
2443 timeout_defer, which, if set TRUE, converts the failures into defers for
2444 both kinds of timeout. A transport filter timeout is now identified in
2445 the log output.
2446
9176e9f0
PH
2447PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2448 systems where "make" and "gmake" are different, calling "gmake" at top
2449 level broke things. I've arranged for the value of $(MAKE) to be passed
2450 from the Makefile to this script so that it can call the same version of
2451 "make".
2452
7982096b 2453
bbe902f0
PH
2454A note about Exim versions 4.44 and 4.50
2455----------------------------------------
2456
2457Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2458changes of various kinds. As a consequence, a big documentation update was
2459needed. This delayed the release for rather longer than seemed good, especially
2460in the light of a couple of (minor) security issues. Therefore, the changes
2461that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2462release. So 4.44 and 4.50 are in effect two different branches that both start
2463from 4.43.
2464
2465I have left the 4.50 change log unchanged; it contains all the changes since
24664.43. The change log for 4.44 is below; many of its items are identical to
2467those for 4.50. This seems to be the most sensible way to preserve the
2468historical information.
2469
2470
f7b63901 2471Exim version 4.50
495ae4b0
PH
2472-----------------
2473
5fe762f6
PH
2474 1. Minor wording change to the doc/README.SIEVE file.
2475
139059f6 2476 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2477 computation of the current number of files was incorrect.
495ae4b0 2478
7086e875
PH
2479 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2480 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2481 place.
2482
35af9f61
PH
2483 4. Give more explanation in the error message when the command for a transport
2484 filter fails to execute.
2485
b668c215
PH
2486 5. There are several places where Exim runs a non-Exim command in a
2487 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2488 was being done only for the command run by the queryprogram router. It is
2489 now done for all such subprocesses. The other cases are: ${run, transport
2490 filters, and the commands run by the lmtp and pipe transports.
2491
a494b1e1
PH
2492 6. Added CONFIGURE_GROUP build-time option.
2493
2494 7. Some older OS have a limit of 256 on the maximum number of file
2495 descriptors. Exim was using setrlimit() to set 1000 as a large value
2496 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2497 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2498
c5fcb476
PH
2499 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2500 was an oversight, and furthermore, ever since the addition of extra
2501 controls (e.g. 4.43/32), the checks on when to allow different forms of
2502 "control" were broken. There should now be diagnostics for all cases when a
2503 control that does not make sense is encountered.
2504
69358f02
PH
2505 9. Added the /retain_sender option to "control=submission".
2506
5be20824
PH
250710. $recipients is now available in the predata ACL (oversight).
2508
eb2c0248
PH
250911. Tidy the search cache before the fork to do a delivery from a message
2510 received from the command line. Otherwise the child will trigger a lookup
2511 failure and thereby defer the delivery if it tries to use (for example) a
2512 cached ldap connection that the parent has called unbind on.
2513
2a3eea10
PH
251412. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2515 of $address_data from the recipient verification was clobbered by the
2516 sender verification.
2517
251813. The value of address_data from a sender verification is now available in
2519 $sender_address_data in subsequent conditions in the ACL statement.
2520
23c7ff99
PH
252114. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2522
4deaf07d
PH
252315. Added a new option "connect=<time>" to callout options, to set a different
2524 connection timeout.
2525
926e1192
PH
252616. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2527 was its contents. (It was OK if the option was not defined at all.)
2528
650edc6f
PH
252917. A "Completed" log line is now written for messages that are removed from
2530 the spool by the -Mrm option.
2531
2c7db3f5
PH
253218. New variables $sender_verify_failure and $recipient_verify_failure contain
2533 information about exactly what failed.
2534
3d235903
PH
253519. Added -dd to debug only the daemon process.
2536
7c7ad977
PH
253720. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2538 handles timeouts, both on the server side and network timeouts. Renamed the
2539 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2540
981756db
PH
254121. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2542 It is now set to "smtps".
2543
d4eb88df
PH
254422. $host_address is now set to the target address during the checking of
2545 ignore_target_hosts.
2546
254723. When checking ignore_target_hosts for an ipliteral router, no host name was
2548 being passed; this would have caused $sender_host_name to have been used if
2549 matching the list had actually called for a host name (not very likely,
2550 since this list is usually IP addresses). A host name is now passed as
2551 "[x.x.x.x]".
2552
7d468ab8
PH
255324. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2554 code that specifies a non-restarting handler (typically sigaction() in
2555 modern systems) in an attempt to fix a rare and obscure crash bug.
2556
255725. Narrowed the window for a race in the daemon that could cause it to ignore
2558 SIGCHLD signals. This is not a major problem, because they are used only to
2559 wake it up if nothing else does.
2560
62c0818f
PH
256126. A malformed maildirsize file could cause Exim to calculate negative values
2562 for the mailbox size or file count. Odd effects could occur as a result.
2563 The maildirsize information is now recalculated if the size or filecount
2564 end up negative.
2565
26034054
PH
256627. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2567 support for a long time. Removed HAVE_SYS_VFS_H.
2568
af66f652
PH
256928. Installed the latest version of exipick from John Jetmore.
2570
90af77f4
PH
257129. In an address list, if the pattern was not a regular expression, an empty
2572 subject address (from a bounce message) matched only if the pattern was an
2573 empty string. Non-empty patterns were not even tested. This was the wrong
2574 because it is perfectly reasonable to use an empty address as part of a
2575 database query. An empty address is now tested by patterns that are
2576 lookups. However, all the other forms of pattern expect the subject to
2577 contain a local part and a domain, and therefore, for them, an empty
2578 address still always fails if the pattern is not itself empty.
2579
d8ef3577
PH
258030. Exim went into a mad DNS loop when attempting to do a callout where the
2581 host was specified on an smtp transport, and looking it up yielded more
2582 than one IP address.
2583
5cb8cbc6
PH
258431. Re-factored the code for checking spool and log partition space into a
2585 function that finds that data and another that does the check. The former
2586 is then used to implement four new variables: $spool_space, $log_space,
2587 $spool_inodes, and $log_inodes.
2588
14702f5b
PH
258932. The RFC2047 encoding function was originally intended for short strings
2590 such as real names; it was not keeping to the 75-character limit for
2591 encoded words that the RFC imposes. It now respects the limit, and
2592 generates multiple encoded words if necessary. To be on the safe side, I
2593 have increased the buffer size for the ${rfc2047: expansion operator from
2594 1024 to 2048 bytes.
2595
063b1e99
PH
259633. It is now permitted to omit both strings after an "if" condition; if the
2597 condition is true, the result is "true". As before, when the second string
2598 is omitted, a false condition yields an empty string. This makes it less
2599 cumbersome to write custom ACL and router conditions.
2600
652e1b65
PH
260134. Failure to deliver a bounce message always caused it to be frozen, even if
2602 there was an errors_to setting on the router. The errors_to setting is now
2603 respected.
2604
6f0c9a4f
PH
260535. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2606 canonical form (fully expanded) before being placed in
2607 $sender_host_address.
2608
33397d19
PH
260936. The table in the code that translates DNS record types into text (T_A to
2610 "A" for instance) was missing entries for NS and CNAME. It is just possible
2611 that this could have caused confusion if both these types were looked up
2612 for the same domain, because the text type is used as part of Exim's
2613 per-process caching. But the chance of anyone hitting this buglet seems
2614 very small.
2615
7bb56e1f
PH
261637. The dnsdb lookup has been extended in a number of ways.
2617
2618 (1) There is a new type, "zns", which walks up the domain tree until it
2619 finds some nameserver records. It should be used with care.
2620
ea3bc19b
PH
2621 (2) There is a new type, "mxh", which is like "mx" except that it returns
2622 just the host names, not the priorities.
2623
2624 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2625 looked up. The behaviour when one of the lookups defers can be
2626 controlled by a keyword.
7bb56e1f 2627
ea3bc19b 2628 (4) It is now possible to specify the separator character for use when
7bb56e1f 2629 multiple records are returned.
33397d19 2630
0bcb2a0e
PH
263138. The dnslists ACL condition has been extended: it is now possible to supply
2632 a list of IP addresses and/or domains to be looked up in a particular DNS
2633 domain.
2634
2ac0e484
PH
263539. Added log_selector=+queue_time_overall.
2636
4e1fde53
PH
263740. When running the queue in the test harness, wait just a tad after forking a
2638 delivery process, to get repeatability of debugging output.
2639
de365ded
PH
264041. Include certificate and key file names in error message when GnuTLS fails
2641 to set them up, because the GnuTLS error message doesn't include the name
2642 of the failing file when there is a problem reading it.
2643
f05da2e8
PH
264442. Allow both -bf and -bF in the same test run.
2645
d6453af2
PH
264643. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2647
f7b63901
PH
264844. The "Exiscan patch" is now merged into the mainline Exim source.
2649
265045. Sometimes the final signoff response after QUIT could fail to get
2651 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2652 < 0 before doing a fflush(). This bug looks as though it goes back to the
2653 introduction of TLS in release 3.20, but "sometimes" must have been rare
2654 because the tests only now provoked it.
2655
a444213a
PH
265646. Reset the locale to "C" after calling embedded Perl, in case it was changed
2657 (this can affect the format of dates).
2658
0ec020ea
PH
265947. exim_tidydb, when checking for the continued existence of a message for
2660 which it has found a message-specific retry record, was not finding
2661 messages that were in split spool directories. Consequently, it was
2662 deleting retry records that should have stayed in existence.
2663
b1206957
PH
266448. Steve fixed some bugs in eximstats.
2665
266649. The SPA authentication driver was not abandoning authentication and moving
2667 on to the next authenticator when an expansion was forced to fail,
2668 contradicting the general specification for all authenticators. Instead it
2669 was generating a temporary error. It now behaves as specified.
2670
26dd5a95
PH
267150. The default ordering of permitted cipher suites for GnuTLS was pessimal
2672 (the order specifies the preference for clients). The order is now AES256,
2673 AES128, 3DES, ARCFOUR128.
2674
343b2385
PH
267551. Small patch to Sieve code - explicitly set From: when generating an
2676 autoreply.
2677
1c5466b9
PH
267852. Exim crashed if a remote delivery caused a very long error message to be
2679 recorded - for instance if somebody sent an entire SpamAssassin report back
2680 as a large number of 550 error lines. This bug was coincidentally fixed by
2681 increasing the size of one of Exim's internal buffers (big_buffer) that
2682 happened as part of the Exiscan merge. However, to be on the safe side, I
2683 have made the code more robust (and fixed the comments that describe what
2684 is going on).
2685
55ee9ee3
PH
268653. Now that there can be additional text after "Completed" in log lines (if
2687 the queue_time_overall log selector is set), a one-byte patch to exigrep
2688 was needed to allow it to recognize "Completed" as not the last thing in
2689 the line.
2690
d38f8232
PH
269154. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2692 patch that reportedly fixes this has been added. I am not expert enough to
2693 create a test for it. This is what the patch creator wrote:
2694
2695 "I found a little strange behaviour of ldap code when working with
2696 Windows 2003 AD Domain, where users was placed in more than one
2697 Organization Units. When I tried to give exim partial DN, the exit code
2698 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2699 But simultaneously result of request was absolutely normal ldap result,
2700 so I produce this patch..."
2701
3295e65b
PH
2702 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2703 REFERENCE, so I have modified the code to exclude the patch when that macro
2704 is not defined.
2705
7102e136
PH
270655. Some experimental protocols are using DNS PTR records for new purposes. The
2707 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2708 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2709 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2710 CAN-2005-0021
7102e136 2711
3ca0ba97
PH
271256. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2713
c2bcbe20
PH
271457. Double the size of the debug message buffer (to 2048) so that more of very
2715 long debug lines gets shown.
2716
18ce445d
PH
271758. The exicyclog utility now does better if the number of log files to keep
2718 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2719
1f5b4c3d
PH
272059. Two changes related to the smtp_active_hostname option:
2721
2722 (1) $smtp_active_hostname is now available as a variable.
2723 (2) The default for smtp_banner uses $smtp_active_hostname instead
2724 of $primary_hostname.
2725
b975ba52
PH
272660. The host_aton() function is supposed to be passed a string that is known
2727 to be a valid IP address. However, in the case of IPv6 addresses, it was
2728 not checking this. This is a hostage to fortune. Exim now panics and dies
2729 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2730 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2731 components; fortuitously, this particular loophole had already been fixed
2732 by change 4.50/55 above.
2733
2734 If there are any other similar loopholes, the new check in host_aton()
2735 itself should stop them being exploited. The report I received stated that
2736 data on the command line could provoke the exploit when Exim was running as
2737 exim, but did not say which command line option was involved. All I could
2738 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2739 running as the user.
ea3a6f44 2740 CAN-2005-0021
85b87bc2
PH
2741
274261. There was a buffer overflow vulnerability in the SPA authentication code
2743 (which came originally from the Samba project). I have added a test to the
2744 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2745 CAN-2005-0022
b975ba52 2746
17ffcae7
PH
274762. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2748 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2749
d95f9fdb
PH
275063. The daemon start-up calls getloadavg() while still root for those OS that
2751 need the first call to be done as root, but it missed one case: when
2752 deliver_queue_load_max is set with deliver_drop_privilege. This is
2753 necessary for the benefit of the queue runner, because there is no re-exec
2754 when deliver_drop_privilege is set.
2755
86b8287f
PH
275664. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2757 This has been fixed.
2758
60dc5e56
PH
275965. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2760 was in use, was not putting the data itself into the right store pool;
2761 consequently, it could be overwritten for a subsequent message in the same
2762 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2763 the caching.)
2764
533244af
PH
276566. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2766
a5a28604
PH
276767. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2768 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2769 the function were treating the return as a boolean value, which happened to
2770 work because 0=false and not-0=true, but is not correct code.
2771
7e634d24
PH
277268. The host_aton() function was not handling scoped IPv6 addresses (those
2773 with, for example, "%eth0" on the end) correctly.
2774
3e11c26b
PH
277569. Fixed some compiler warnings in acl.c for the bitmaps specified with
2776 negated items (that is, ~something) in unsigned ints. Some compilers
2777 apparently mutter when there is no cast.
2778
6729cf78
PH
277970. If an address verification called from an ACL failed, and did not produce a
2780 user-specific message (i.e. there was only a "system" message), nothing was
2781 put in $acl_verify_message. In this situation, it now puts the system
2782 message there.
2783
00f00ca5
PH
278471. Change 4.23/11 added synchronization checking at the start of an SMTP
2785 session; change 4.31/43 added the unwanted input to the log line - except
2786 that it did not do this in the start of session case. It now does.
2787
c9bdd01c
PH
278872. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2789 This is wrong and can cause the other end to generate a synchronization
2790 error if it is another Exim or anything else that does the synchronization
2791 check. A QUIT command is no longer sent after a timeout.
2792
d43194df
PH
279373. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2794 during host lookups.
2795
fe5b5d0b
PH
279674. The defer_ok option of callout verification was not working if it was used
2797 when verifying addresses in header lines, that is, for this case:
2798
2799 verify = header_sender/callout=defer_ok
2800
76a2d7ba
PH
280175. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2802 those file descriptors could be used for SMTP connections. If anything
2803 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2804 could be sent to the SMTP client, causing chaos. The daemon now opens
2805 stdin, stdout, and stderr to /dev/null when it puts itself into the
2806 background.
2807
280876. Arrange for output from Perl's "warn" command to be written to Exim's main
2809 log by default. The user can override this with suitable Perl magic.
2810
04f7d5b9
PH
281177. The use of log_message on a "discard" ACL verb, which is supposed to add to
2812 the log message when discard triggers, was not working for the DATA ACL or
2813 for the non-SMTP ACL.
2814
bc60667e
PH
281578. Error message wording change in sieve.c.
2816
bb6e88ff
PH
281779. If smtp_accept_max_per_host was set, the number of connections could be
2818 restricted to fewer than expected, because the daemon was trying to set up
2819 a new connection before checking whether the processes handling previous
2820 connections had finished. The check for completed processes is now done
2821 earlier. On busy systems, this bug wouldn't be noticed because something
2822 else would have woken the daemon, and it would have reaped the completed
2823 process earlier.
2824
1e70f85b
PH
282580. If a message was submitted locally by a user whose login name contained one
2826 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2827 It caused a spool format error. I have fixed the spool reading code. A
2828 related problem was that the "from" clause in the Received: line became
2829 illegal because of the space(s). It is now covered by ${quote_local_part.
2830
283181. Included the latest eximstats from Steve (adds average sizes to HTML Top
2832 tables).
2833
4e01f9d6
PH
283482. Updated OS/Makefile-AIX as per message from Mike Meredith.
2835
1ee1cef2
PH
283683. Patch from Sieve maintainer to fix unterminated string problem in
2837 "vacation" handling.
2838
6e2b4ccc
PH
283984. Some minor changes to the Linux configuration files to help with other
2840 OS variants using glibc.
2841
8e669ac1
PH
284285. One more patch for Sieve to update vacation handling to latest spec.
2843
495ae4b0 2844
bbe902f0
PH
2845----------------------------------------------------
2846See the note above about the 4.44 and 4.50 releases.
2847----------------------------------------------------
2848
2849
2850Exim version 4.44
2851-----------------
2852
2853 1. Change 4.43/35 introduced a bug that caused file counts to be
2854 incorrectly computed when quota_filecount was set in an appendfile
2855 transport
2856
2857 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2858 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2859 place.
2860
2861 3. Give more explanation in the error message when the command for a transport
2862 filter fails to execute.
2863
2864 4. There are several places where Exim runs a non-Exim command in a
2865 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2866 was being done only for the command run by the queryprogram router. It is
2867 now done for all such subprocesses. The other cases are: ${run, transport
2868 filters, and the commands run by the lmtp and pipe transports.
2869
2870 5. Some older OS have a limit of 256 on the maximum number of file
2871 descriptors. Exim was using setrlimit() to set 1000 as a large value
2872 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2873 systems. I've change it so that if it can't get 1000, it tries for 256.
2874
2875 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2876 was an oversight, and furthermore, ever since the addition of extra
2877 controls (e.g. 4.43/32), the checks on when to allow different forms of
2878 "control" were broken. There should now be diagnostics for all cases when a
2879 control that does not make sense is encountered.
2880
2881 7. $recipients is now available in the predata ACL (oversight).
2882
2883 8. Tidy the search cache before the fork to do a delivery from a message
2884 received from the command line. Otherwise the child will trigger a lookup
2885 failure and thereby defer the delivery if it tries to use (for example) a
2886 cached ldap connection that the parent has called unbind on.
2887
2888 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2889 of $address_data from the recipient verification was clobbered by the
2890 sender verification.
2891
289210. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2893 was its contents. (It was OK if the option was not defined at all.)
2894
289511. A "Completed" log line is now written for messages that are removed from
2896 the spool by the -Mrm option.
2897
289812. $host_address is now set to the target address during the checking of
2899 ignore_target_hosts.
2900
290113. When checking ignore_target_hosts for an ipliteral router, no host name was
2902 being passed; this would have caused $sender_host_name to have been used if
2903 matching the list had actually called for a host name (not very likely,
2904 since this list is usually IP addresses). A host name is now passed as
2905 "[x.x.x.x]".
2906
290714. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2908 code that specifies a non-restarting handler (typically sigaction() in
2909 modern systems) in an attempt to fix a rare and obscure crash bug.
2910
291115. Narrowed the window for a race in the daemon that could cause it to ignore
2912 SIGCHLD signals. This is not a major problem, because they are used only to
2913 wake it up if nothing else does.
2914
291516. A malformed maildirsize file could cause Exim to calculate negative values
2916 for the mailbox size or file count. Odd effects could occur as a result.
2917 The maildirsize information is now recalculated if the size or filecount
2918 end up negative.
2919
292017. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2921 support for a long time. Removed HAVE_SYS_VFS_H.
2922
ea3a6f44 292318. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2924
292519. Allow an empty sender to be matched against a lookup in an address list.
2926 Previously the only cases considered were a regular expression, or an
2927 empty pattern.
2928
292920. Exim went into a mad DNS lookup loop when doing a callout where the
2930 host was specified on the transport, if the DNS lookup yielded more than
2931 one IP address.
2932
ea3a6f44
NM
293321. The RFC2047 encoding function was originally intended for short strings
2934 such as real names; it was not keeping to the 75-character limit for
2935 encoded words that the RFC imposes. It now respects the limit, and
2936 generates multiple encoded words if necessary. To be on the safe side, I
2937 have increased the buffer size for the ${rfc2047: expansion operator from
2938 1024 to 2048 bytes.
bbe902f0 2939
ea3a6f44
NM
294022. Failure to deliver a bounce message always caused it to be frozen, even if
2941 there was an errors_to setting on the router. The errors_to setting is now
2942 respected.
bbe902f0
PH
2943
294423. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2945 canonical form (fully expanded) before being placed in
2946 $sender_host_address.
2947
294824. Updated eximstats to version 1.33
2949
ea3a6f44
NM
295025. Include certificate and key file names in error message when GnuTLS fails
2951 to set them up, because the GnuTLS error message doesn't include the name
2952 of the failing file when there is a problem reading it.
bbe902f0
PH
2953
295426. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2955 As per change 25.
bbe902f0 2956
ea3a6f44
NM
295727. Reset the locale to "C" after calling embedded Perl, in case it was changed
2958 (this can affect the format of dates).
bbe902f0 2959
ea3a6f44
NM
296028. exim_tidydb, when checking for the continued existence of a message for
2961 which it has found a message-specific retry record, was not finding
2962 messages that were in split spool directories. Consequently, it was
2963 deleting retry records that should have stayed in existence.
bbe902f0
PH
2964
296529. eximstats updated to version 1.35
2966 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2967 1.35 - bugfix such that pie charts by volume are generated correctly
2968
ea3a6f44
NM
296930. The SPA authentication driver was not abandoning authentication and moving
2970 on to the next authenticator when an expansion was forced to fail,
2971 contradicting the general specification for all authenticators. Instead it
2972 was generating a temporary error. It now behaves as specified.
bbe902f0 2973
ea3a6f44
NM
297431. The default ordering of permitted cipher suites for GnuTLS was pessimal
2975 (the order specifies the preference for clients). The order is now AES256,
2976 AES128, 3DES, ARCFOUR128.
bbe902f0 2977
ea3a6f44
NM
297831. Small patch to Sieve code - explicitly set From: when generating an
2979 autoreply.
bbe902f0 2980
ea3a6f44
NM
298132. Exim crashed if a remote delivery caused a very long error message to be
2982 recorded - for instance if somebody sent an entire SpamAssassin report back
2983 as a large number of 550 error lines. This bug was coincidentally fixed by
2984 increasing the size of one of Exim's internal buffers (big_buffer) that
2985 happened as part of the Exiscan merge. However, to be on the safe side, I
2986 have made the code more robust (and fixed the comments that describe what
2987 is going on).
bbe902f0 2988
ea3a6f44
NM
298933. Some experimental protocols are using DNS PTR records for new purposes. The
2990 keys for these records are domain names, not reversed IP addresses. The
2991 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2992 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2993 CAN-2005-0021
2994
ea3a6f44
NM
299534. The host_aton() function is supposed to be passed a string that is known
2996 to be a valid IP address. However, in the case of IPv6 addresses, it was
2997 not checking this. This is a hostage to fortune. Exim now panics and dies
2998 if the condition is not met. A case was found where this could be provoked
2999 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3000 components; fortuitously, this particular loophole had already been fixed
3001 by change 4.50/55 or 4.44/33 above.
3002
3003 If there are any other similar loopholes, the new check in host_aton()
3004 itself should stop them being exploited. The report I received stated that
3005 data on the command line could provoke the exploit when Exim was running as
3006 exim, but did not say which command line option was involved. All I could
3007 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3008 running as the user.
bbe902f0
PH
3009 CAN-2005-0021
3010
ea3a6f44
NM
301135. There was a buffer overflow vulnerability in the SPA authentication code
3012 (which came originally from the Samba project). I have added a test to the
3013 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3014 CAN-2005-0022
3015
ea3a6f44
NM
301636. The daemon start-up calls getloadavg() while still root for those OS that
3017 need the first call to be done as root, but it missed one case: when
3018 deliver_queue_load_max is set with deliver_drop_privilege. This is
3019 necessary for the benefit of the queue runner, because there is no re-exec
3020 when deliver_drop_privilege is set.
bbe902f0 3021
ea3a6f44
NM
302237. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3023 was in use, was not putting the data itself into the right store pool;
3024 consequently, it could be overwritten for a subsequent message in the same
3025 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3026 the caching.)
bbe902f0 3027
ea3a6f44
NM
302838. Sometimes the final signoff response after QUIT could fail to get
3029 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3030 < 0 before doing a fflush(). This bug looks as though it goes back to the
3031 introduction of TLS in release 3.20, but "sometimes" must have been rare
3032 because the tests only now provoked it.
bbe902f0
PH
3033
3034
495ae4b0
PH
3035Exim version 4.43
3036-----------------
3037
3038 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3039 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3040 Now it returns an integer. A number of calls were still expecting a T/F
3041 return. Fortuitously, in all cases, the tests worked in OK situations,
3042 which is the norm. However, things would have gone wrong on any write
3043 failures on the smtp file descriptor. This function is used when sending
3044 messages over SMTP and also when doing verify callouts.
3045
3046 2. When Exim is called to do synchronous delivery of a locally submitted
3047 message (the -odf or -odi options), it no longer closes stderr before doing
3048 the delivery.
3049
3050 3. Implemented the mua_wrapper option.
3051
3052 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3053
3054 5. Implemented the functions header_remove(), header_testname(),
3055 header_add_at_position(), and receive_remove_recipient(), and exported them
3056 to local_scan().
3057
3058 6. If an ACL "warn" statement specified the addition of headers, Exim already
3059 inserted X-ACL-Warn: at the start if there was no header name. However, it
3060 was not making this test for the second and subsequent header lines if
3061 there were newlines in the string. This meant that an invalid header could
3062 be inserted if Exim was badly configured.
3063
3064 7. Allow an ACL "warn" statement to add header lines at the start or after all
3065 the Received: headers, as well as at the end.
3066
3067 8. Added the rcpt_4xx retry error code.
3068
3069 9. Added postmaster_mailfrom=xxx to callout verification option.
3070
307110. Added mailfrom=xxxx to the callout verification option, for verify=
3072 header_sender only.
3073
307411. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3075 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3076
307712. Inserted some casts to stop certain compilers warning when using pointer
3078 differences as field lengths or precisions in printf-type calls (mostly
3079 affecting debugging statements).
3080
308113. Added optional readline() support for -be (dynamically loaded).
3082
308314. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3084 same clock tick as a message's arrival, so that its received time was the
3085 same as the "first fail" time on the retry record, and that message
3086 remained on the queue past the ultimate address timeout, every queue runner
3087 would try a delivery (because it was past the ultimate address timeout) but
3088 after another failure, the ultimate address timeout, which should have then
3089 bounced the address, did not kick in. This was a "< instead of <=" error;
3090 in most cases the first failure would have been in the next clock tick
3091 after the received time, and all would be well.
3092
309315. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3094 being recognized when the domain list was tested by the match_domain
3095 condition in an expansion string.
3096
309716. Added the ${str2b64: operator.
3098
309917. Exim was always calling setrlimit() to set a large limit for the number of
3100 processes, without checking whether the existing limit was already
3101 adequate. (It did check for the limit on file descriptors.) Furthermore,
3102 errors from getrlimit() and setrlimit() were being ignored. Now they are
3103 logged to the main and panic logs, but Exim does carry on, to try to do its
3104 job under whatever limits there are.
3105
310618. Imported PCRE 5.0.
3107
310819. Trivial typo in log message " temporarily refused connection" (the leading
3109 space).
3110
311120. If the log selector return_path_on_delivery was set and an address was
3112 redirected to /dev/null, the delivery process crashed because it assumed
3113 that a return path would always be set for a "successful" delivery. In this
3114 case, the whole delivery is bypassed as an optimization, and therefore no
3115 return path is set.
3116
311721. Internal re-arrangement: the function for sending a challenge and reading
3118 a response while authentication was assuming a zero-terminated challenge
3119 string. It's now changed to take a pointer and a length, to allow for
3120 binary data in such strings.
3121
312222. Added the cyrus_sasl authenticator (code supplied by MBM).
3123
312423. Exim was not respecting finduser_retries when seeking the login of the
3125 uid under which it was called; it was always trying 10 times. (The default
3126 setting of finduser_retries is zero.) Also, it was sleeping after the final
3127 failure, which is pointless.
3128
312924. Implemented tls_on_connect_ports.
3130
313125. Implemented acl_smtp_predata.
3132
313326. If the domain in control=submission is set empty, Exim assumes that the
3134 authenticated id is a complete email address when it generates From: or
3135 Sender: header lines.
3136
313727. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3138 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3139 chown and chgrp in /bin and hostname in /usr/bin.
3140
314128. Exim was keeping the "process log" file open after each use, just as it
3142 does for the main log. This opens the possibility of it remaining open for
3143 long periods when the USR1 signal hits a daemon. Occasional processlog
3144 errors were reported, that could have been caused by this. Anyway, it seems
3145 much more sensible not to leave this file open at all, so that is what now
3146 happens.
3147
314829. The long-running daemon process does not normally write to the log once it
3149 has entered its main loop, and it closes the log before doing so. This is
3150 so that log files can straightforwardly be renamed and moved. However,
3151 there are a couple of unusual error situations where the daemon does write
3152 log entries, and I had neglected to close the log afterwards.
3153
315430. The text of an SMTP error response that was received during a remote
3155 delivery was being truncated at 512 bytes. This is too short for some of
3156 the long messages that one sometimes sees. I've increased the limit to
3157 1024.
3158
315931. It is now possible to make retry rules that apply only when a message has a
3160 specific sender, in particular, an empty sender.
3161
316232. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3163 it possible to be selective about when SMTP synchronization is enforced.
3164
316533. Added "control = caseful_local_part" and "control = "caselower_local_part".
3166
316732. Implemented hosts_connection_nolog.
3168
316933. Added an ACL for QUIT.
3170
317134. Setting "delay_warning=" to disable warnings was not working; it gave a
3172 syntax error.
3173
317435. Added mailbox_size and mailbox_filecount to appendfile.
3175
317636. Added control = no_multiline_responses to ACLs.
3177
317837. There was a bug in the logic of the code that waits for the clock to tick
3179 in the case where the clock went backwards by a substantial amount such
3180 that the microsecond fraction of "now" was more than the microsecond
3181 fraction of "then" (but the whole seconds number was less).
3182
318338. Added support for the libradius Radius client library this is found on
3184 FreeBSD (previously only the radiusclient library was supported).
3185
3186
3187Exim version 4.42
3188-----------------
3189
3190 1. When certain lookups returned multiple values in the form name=value, the
3191 quoting of the values was not always being done properly. Specifically:
3192 (a) If the value started with a double quote, but contained no whitespace,
3193 it was not quoted.
3194 (b) If the value contained whitespace other than a space character (i.e.
3195 tabs or newlines or carriage returns) it was not quoted.
3196 This fix has been applied to the mysql and pgsql lookups by writing a
3197 separate quoting function and calling it from the lookup code. The fix
3198 should probably also be applied to nisplus, ibase and oracle lookups, but
3199 since I cannot test any of those, I have not disturbed their existing code.
3200
3201 2. A hit in the callout cache for a specific address caused a log line with no
3202 reason for rejecting RCPT. Now it says "Previous (cached) callout
3203 verification failure".
3204
3205 3. There was an off-by-one bug in the queryprogram router. An over-long
3206 return line was truncated at 256 instead of 255 characters, thereby
3207 overflowing its buffer with the terminating zero. As well as fixing this, I
3208 have increased the buffer size to 1024 (and made a note to document this).
3209
3210 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3211 when Exim is waiting for an SMTP response from a remote server, Exim
3212 restarts its select() call on the socket, thereby resetting its timeout.
3213 This is not a problem when such interrupts are rare. Somebody set up a cron
3214 job to run exiwhat every 2 minutes, which is less than the normal select()
3215 timeout (5 or 10 minutes). This meant that the select() timeout never
3216 kicked in because it was always reset. I have fixed this by comparing the
3217 time when an interrupt arrives with the time at the start of the first call
3218 to select(). If more time than the timeout has elapsed, the interrupt is
3219 treated as a timeout.
3220
3221 5. Some internal re-factoring in preparation for the addition of Sieve
3222 extensions (by MH). In particular, the "personal" test is moved to a
3223 separate function, and given an option for scanning Cc: and Bcc: (which is
3224 not set for Exim filters).
3225
3226 6. When Exim created an email address using the login of the caller as the
3227 local part (e.g. when creating a From: or Sender: header line), it was not
3228 quoting the local part when it contained special characters such as @.
3229
3230 7. Installed new OpenBSD configuration files.
3231
3232 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3233 try to make them clearer.
3234
3235 9. Callout options, other than the timeout value, were being ignored when
3236 verifying sender addresses in header lines. For example, when using
3237
3238 verify = header_sender/callout=no_cache
3239
3240 the cache was (incorrectly) being used.
3241
324210. Added a missing instance of ${EXE} to the exim_install script; this affects
3243 only the Cygwin environment.
3244
324511. When return_path_on_delivery was set as a log selector, if different remote
3246 addresses in the same message used different return paths and parallel
3247 remote delivery occurred, the wrong values would sometimes be logged.
3248 (Whenever a remote delivery process finished, the return path value from
3249 the most recently started remote delivery process was logged.)
3250
325112. RFC 3848 specifies standard names for the "with" phrase in Received: header
3252 lines when AUTH and/or TLS are in use. This is the "received protocol"
3253 field. Exim used to use "asmtp" for authenticated SMTP, without any
3254 indication (in the protocol name) for TLS use. Now it follows the RFC and
3255 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3256 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3257 names appear in log lines as well as in Received: header lines.
3258
325913. Installed MH's patches for Sieve to add the "copy" and "vacation"
3260 extensions, and comparison tests, and to fix some bugs.
3261
326214. Changes to the "personal" filter test:
3263
3264 (1) The test was buggy in that it was just doing the equivalent of
3265 "contains" tests on header lines. For example, if a user's address was
3266 anne@some.where, the "personal" test would incorrectly be true for
3267
3268 To: susanne@some.where
3269
3270 This test is now done by extracting each address from the header in turn,
3271 and checking the entire address. Other tests that are part of "personal"
3272 are now done using regular expressions (for example, to check local parts
3273 of addresses in From: header lines).
3274
3275 (2) The list of non-personal local parts in From: addresses has been
3276 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3277 taken from the Sieve specification recommendations.
3278
3279 (3) If the message contains any header line starting with "List-" it is
3280 treated as non-personal.
3281
3282 (4) The test for "circular" in the Subject: header line has been removed
3283 because it now seems ill-conceived.
3284
328515. Minor typos in src/EDITME comments corrected.
3286
328716. Installed latest exipick from John Jetmore.
3288
328917. If headers_add on a router specified a text string that was too long for
3290 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3291 of string_sprintf() is now avoided.
3292
329318. $message_body_size was not set (it was always zero) when running the DATA
3294 ACL and the local_scan() function.
3295
329619. For the "mail" command in an Exim filter, no default was being set for
3297 the once_repeat time, causing a random time value to be used if "once" was
3298 specified. (If the value happened to be <= 0, no repeat happened.) The
3299 default is now 0s, meaning "never repeat". The "vacation" command was OK
3300 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3301 (I found it when inspecting the code).
3302
330320. There is now an overall timeout for performing a callout verification. It
3304 defaults to 4 times the callout timeout, which applies to individual SMTP
3305 commands during the callout. The overall timeout applies when there is more
3306 than one host that can be tried. The timeout is checked before trying the
3307 next host. This prevents very long delays if there are a large number of
3308 hosts and all are timing out (e.g. when the network connections are timing
3309 out). The value of the overall timeout can be changed by specifying an
3310 additional sub-option for "callout", called "maxwait". For example:
3311
3312 verify = sender/callout=5s,maxwait=20s
3313
331421. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3315 to the end before writing, but this should make it even safer).
3316
331722. Exim was forgetting that it had advertised PIPELINING for the second and
3318 subsequent messages on an SMTP connection. It was also not resetting its
3319 memory on STARTTLS and an internal HELO.
3320
332123. When Exim logs an SMTP synchronization error within a session, it now
3322 records whether PIPELINING has been advertised or not.
3323
332424. Added 3 instances of "(long int)" casts to time_t variables that were being
3325 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3326 rather than long int.
3327
332825. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3329
333026. Added the never_mail option to autoreply.
3331
3332
3333Exim version 4.41
3334-----------------
3335
3336 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3337 crash if the getsockname() call failed; this can happen if a connection is
3338 closed very soon after it is established. The problem was simply in the
3339 order in which certain operations were done, causing Exim to try to write
3340 to the SMTP stream before it had set up the file descriptor. The bug has
3341 been fixed by making things happen in the correct order.
3342
3343
3344Exim version 4.40
3345-----------------
3346
3347 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3348 before the connection was closed, thus losing the rejection response.
3349
3350 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3351 some early Solaris releases, but causes trouble in current releases where
3352 socklen_t is defined.
3353
3354 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3355 always exist.
3356
3357 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3358 configured.
3359
3360 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3361 that releasing the top of it at the end releases what was used for sub-
3362 expansions (unless the block got too big). However, discard this block if
3363 the first thing is a variable or header, so that we can use its block when
3364 it is dynamic (useful for very large $message_headers, for example).
3365
3366 6. Lookups now cache *every* query, not just the most recent. A new, separate
3367 store pool is used for this. It can be recovered when all lookup caches are
3368 flushed. Lookups now release memory at the end of their result strings.
3369 This has involved some general refactoring of the lookup sources.
3370
3371 7. Some code has been added to the store_xxx() functions to reduce the amount
3372 of flapping under certain conditions.
3373
3374 8. log_incoming_interface used to affect only the <= reception log lines. Now
3375 it causes the local interface and port to be added to several more SMTP log
3376 lines, for example "SMTP connection from", and rejection lines.
3377
3378 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3379
338010. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3381
338211. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3383 could be overwritten at the end of the current message (or the start of a
3384 new message if it was set in a HELO ACL). The value is now preserved for
3385 the duration of the SMTP connection.
3386
338712. If a transport had a headers_rewrite setting, and a matching header line
3388 contained an unqualified address, that address was qualified, even if it
3389 did not match any rewriting rules. The underlying bug was that the values
3390 of the flags that permit the existence of unqualified sender and recipient
3391 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3392 non-local messages, and by -bnq for local messages) were not being
3393 preserved with the message after it was received.
3394
339513. When Exim was logging an SMTP synchronization error, it could sometimes log
3396 "next input=" as part of the text comprising the host identity instead of
3397 the correct text. The code was using the same buffer for two different
3398 strings. However, depending on which order the printing function evaluated
3399 its arguments, the bug did not always show up. Under Linux, for example, my
3400 test suite worked just fine.
3401
340214. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3403 doesn't work with some older versions of Perl. It has been changed to "my",
3404 which in any case is probably the better facility to use.
3405
340615. A really picky compiler found some instances of statements for creating
3407 error messages that either had too many or two few arguments for the format
3408 string.
3409
341016. The size of the buffer for calls to the DNS resolver has been increased
3411 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3412 for addresses that have a lot of PTR records. This alleviates a problem; it
3413 does not fully solve it.
3414
341517. A dnsdb lookup for PTR records that receives more data than will fit in the
3416 buffer now truncates the list and logs the incident, which is the same
3417 action as happens when Exim is looking up a host name and its aliases.
3418 Previously in this situation something unpredictable would happen;
3419 sometimes it was "internal error: store_reset failed".
3420
342118. If a server dropped the connection unexpectedly when an Exim client was
3422 using GnuTLS and trying to read a response, the client delivery process
3423 crashed while trying to generate an error log message.
3424
342519. If a "warn" verb in an ACL added multiple headers to a message in a single
3426 string, for example:
3427
3428 warn message = H1: something\nH2: something
3429
3430 the text was added as a single header line from Exim's point of view
3431 though it ended up OK in the delivered message. However, searching for the
3432 second and subsequent header lines using $h_h2: did not work. This has been
3433 fixed. Similarly, if a system filter added multiple headers in this way,
3434 the routers could not see them.
3435
343620. Expanded the error message when iplsearch is called with an invalid key to
3437 suggest using net-iplsearch in a host list.
3438
343921. When running tests using -bh, any delays imposed by "delay" modifiers in
3440 ACLs are no longer actually imposed (and a message to that effect is
3441 output).
3442
344322. If a "gecos" field in a passwd entry contained escaped characters, in
3444 particular, if it contained a \" sequence, Exim got it wrong when building
3445 a From: or a Sender: header from that name. A second bug also caused
3446 incorrect handling when an unquoted " was present following a character
3447 that needed quoting.
3448
344923. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3450 was not being matched caselessly.
3451
345224. Arranged for all hyphens in the exim.8 source to be escaped with
3453 backslashes.
3454
345525. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3456 properly. Recipient callout cache records were still being keyed to include
3457 the sender, even when use_sender was set false. This led to far more
3458 callouts that were necessary. The sender is no longer included in the key
3459 when use_sender is false.
3460
346126. Added "control = submission" modifier to ACLs.
3462
346327. Added the ${base62d: operator to decode base 62 numbers.
3464
346528. dnsdb lookups can now access SRV records.
3466
346729. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3468 the configuration file.
3469
347030. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3471 (-v) mode. This makes the output for a verbose queue run more intelligible.
3472
347331. Added a use_postmaster feature to recipient callouts.
3474
347532. Added the $body_zerocount variable, containing the number of binary zero
3476 bytes in the message body.
3477
347833. The time of last modification of the "new" subdirectory is now used as the
3479 "mailbox time last read" when there is a quota error for a maildir
3480 delivery.
3481
348234. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3483
348435. Added +ignore_unknown as a special item in host lists.
3485
348636. Code for decoding IPv6 addresses in host lists is now included, even if
3487 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3488 address was recognized as an IP address, but was then not correctly decoded
3489 into binary, causing unexpected and incorrect effects when compared with
3490 another IP address.
3491
3492
3493Exim version 4.34
3494-----------------
3495
3496 1. Very minor rewording of debugging text in manualroute to say "list of
3497 hosts" instead of "hostlist".
3498
3499 2. If verify=header_syntax was set, and a header line with an unqualified
3500 address (no domain) and a large number of spaces between the end of the
3501 name and the colon was received, the reception process suffered a buffer
3502 overflow, and (when I tested it) crashed. This was caused by some obsolete
3503 code that should have been removed. The fix is to remove it!