Fixed MakeLinks build script. Fixes: #911
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
30339e0f 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.593 2009/11/13 15:58:16 nm4 Exp $
495ae4b0
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
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6Exim version 4.70
7-----------------
8
cdd3bb85
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9TK/01 Added patch by Johannes Berg that expands the main option
10 "spamd_servers" if it starts with a dollar sign.
11
12TK/02 Write list of recipients to X-Envelope-Sender header when building
13 the mbox-format spool file for content scanning (suggested by Jakob
14 Hirsch)
15
16TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
17 (http://www.dcc-servers.net/) support via dccifd. Activated by
18 setting EXPERIMENTAL_DCC=yes in Local/Makefile. Check out
19 experimental_spec.txt for more documentation.
20
21TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
22 by Mark Daniel Reidel <mr@df.eu>.
23
210f147e
NM
24NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
25 When building exim an external PCRE library is now needed -
26 PCRE is a system library on the majority of modern systems.
27 See entry on PCRE_LIBS in EDITME file.
28
deafd5b3
NM
29NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
30 conversation. Added nologin parameter to request.
31 Patch contributed by Kirill Miazine
32
089793a4
TF
33TF/01 Do not log submission mode rewrites if they do not change the address.
34
5f16ca82
TF
35TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
36
dae9d94e
NM
37NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
38 log files in place. Contributed by Roberto Lima
39
3f0da4d0
NM
40NM/04 Bugzilla 667: close socket used by dovecot authenticator
41
06864c44
TF
42TF/03 Bugzilla 615: When checking the local_parts router precondition
43 after a local_part_suffix or local_part_prefix option, Exim now
44 does not use the address's named list lookup cache, since this
45 contains cached lookups for the whole local part.
46
65a7d8c3
NM
47NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
48 Robert Millan. Documentation is in experimental-spec.txt
49
23510047 50TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 51
7d8eec3a 52NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 53
7d8eec3a 54NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
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55 Patch provided by Jan Srzednicki
56
89dec7b6
TF
57TF/05 Leading white space used to be stripped from $spam_report which
58 wrecked the formatting. Now it is preserved.
5f28a6e8 59
a99de90c
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60TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
61 that they are available at delivery time.
62
e2803e40
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63TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
64
7199e1ee
TF
65TF/08 TLS error reporting now respects the incoming_interface and
66 incoming_port log selectors.
67
e276e04b
TF
68TF/09 Produce a more useful error message if an SMTP transport's hosts
69 setting expands to an empty string.
70
ce552449
NM
71NM/06 Bugzilla 744: EXPN did not work under TLS.
72 Patch provided by Phil Pennock
73
e765a0f1
NM
74NM/07 Bugzilla 769: Extraneous comma in usage fprintf
75 Patch provided by Richard Godbee
76
4f054c63 77NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 78 acl_smtp_notquit, added index entry.
4f054c63 79
24c929a2
NM
80NM/09 Bugzilla 787: Potential buffer overflow in string_format
81 Patch provided by Eugene Bujak
82
cf73943b
NM
83NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
84 Patch provided by Maxim Dounin
85
b52bc06e
NM
86NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
87 Patch provided by Phil Pennock
88
447de4b0
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89NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
90
4c69d561
NM
91NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
92 Patch provided by Brad "anomie" Jorsch
93
d5c39246 94NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
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95 Patch provided by Dean Brooks
96
0b23848a
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97TK/05 Add native DKIM support (does not depend on external libraries).
98
8f3414a1 99NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
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100 Patch provided by Graeme Fowler
101
fb6f955d
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102NM/16 Bugzilla 851: Documentation example syntax fix.
103
104NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 105
dbb0bf41
NM
106NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
107
f3766eb5
NM
108NM/19 Bugzilla 745: TLS version reporting
109 Patch provided by Phil Pennock
110
111NM/20 Bugzilla 167: bool: condition support
112 Patch provided by Phil Pennock
36f12725 113
e6060e2c
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114NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
115 Patch provided by Phil Pennock
116
7496b417 117NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
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118 Patch provided by Brad "anomie" Jorsch
119
d5c13d66
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120NM/23 Bugzilla 687: Fix misparses in eximstats
121 Patch provided by Heiko Schlittermann
122
b2335c0b
NM
123NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
124 Patch provided by Heiko Schlittermann
125
f4cd9433 126NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 127 plus update to original patch.
f4cd9433
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128
129NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 130
8dc71ab3
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131NM/27 Bugzilla 802: Improvements to local interface IP addr detection
132 Patch provided by David Brownlee
133
400eda43
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134NM/28 Bugzilla 807: Improvements to LMTP delivery logging
135
136NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 137
07af267e
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138NM/30 Bugzilla 888: TLS documentation bugfixes
139
0cc09577 140NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 141
17792b53
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142NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
143 Unlike the original bugzilla I have changed all shell scripts in src tree
144
52383f8f
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145NM/33 Bugzilla 898: Transport filter timeout fix
146 Patch by Todd Rinaldo
147
5ca6d115
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148NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
149 Patch by Serge Demonchaux
150
baee9eee
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151NM/35 Bugzilla 39: Base64 decode bug fixes
152 Patch by Jakob Hirsch
153
e93a964c
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154NM/36 Bugzilla 909: Correct connect() call in dcc code
155
9bf3d68f
NM
156NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
157
158NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 159
30339e0f
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160NM/39 Bugzilla 911: Fixed MakeLinks build script
161
deafd5b3 162
47db1125
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163Exim version 4.69
164-----------------
165
4b3504d0
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166TK/01 Add preliminary DKIM support. Currently requires a forked version of
167 ALT-N's libdkim that I have put here:
168 http://duncanthrax.net/exim-experimental/
169
170 Note to Michael Haardt: I had to rename some vars in sieve.c. They
171 were called 'true' and it seems that C99 defines that as a reserved
172 keyword to be used with 'bool' variable types. That means you could
173 not include C99-style headers which use bools without triggering
174 build errors in sieve.c.
175
81ea09ca
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176NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
177 as mailq or other aliases. Changed the --help handling significantly
178 to do whats expected. exim_usage() emits usage/help information.
179
f13cddcb
SC
180SC/01 Added the -bylocaldomain option to eximstats.
181
8ad076b2
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182NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
183
a843aaa6
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184NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
185
47db1125
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186NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
187
188
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189Exim version 4.68
190-----------------
191
192PH/01 Another patch from the Sieve maintainer.
193
6a3bceb1
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194PH/02 When an IPv6 address is converted to a string for single-key lookup
195 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
196 dots are used instead of colons so that keys in lsearch files need not
197 contain colons. This was done some time before quoting was made available
198 in lsearch files. However, iplsearch files do require colons in IPv6 keys
199 (notated using the quote facility) so as to distinguish them from IPv4
200 keys. This meant that lookups for IP addresses in host lists did not work
201 for iplsearch lookups.
202
203 This has been fixed by arranging for IPv6 addresses to be expressed with
204 colons if the lookup type is iplsearch. This is not incompatible, because
205 previously such lookups could never work.
206
207 The situation is now rather anomolous, since one *can* have colons in
208 ordinary lsearch keys. However, making the change in all cases is
209 incompatible and would probably break a number of configurations.
210
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211TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
212 version.
213
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214MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
215 conversion specification without a maximum field width, thereby enabling
216 a rogue spamd server to cause a buffer overflow. While nobody in their
217 right mind would setup Exim to query an untrusted spamd server, an
218 attacker that gains access to a server running spamd could potentially
219 exploit this vulnerability to run arbitrary code as the Exim user.
220
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221TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
222 $primary_hostname instead of what libspf2 thinks the hosts name is.
223
0f2cbd1b
MH
224MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
225 a directory entry by the name of the lookup key. Previously, if a
226 symlink pointed to a non-existing file or a file in a directory that
227 Exim lacked permissions to read, a lookup for a key matching that
228 symlink would fail. Now it is enough that a matching directory entry
229 exists, symlink or not. (Bugzilla 503.)
230
2b85bce7
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231PH/03 The body_linecount and body_zerocount variables are now exported in the
232 local_scan API.
233
93655c46
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234PH/04 Added the $dnslist_matched variable.
235
6c512171
PH
236PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
237 This means they are set thereafter only if the connection becomes
238 encrypted.
239
240PH/06 Added the client_condition to authenticators so that some can be skipped
241 by clients under certain conditions.
242
aa6dc513
PH
243PH/07 The error message for a badly-placed control=no_multiline_responses left
244 "_responses" off the end of the name.
245
a96603a0
PH
246PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
247
8f240103
PH
248PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
249 (without spaces) instead of just copying the configuration text.
250
251PH/10 Added the /noupdate option to the ratelimit ACL condition.
252
d677b2f2
PH
253PH/11 Added $max_received_linelength.
254
d52120f2
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255PH/12 Added +ignore_defer and +include_defer to host lists.
256
64f2600a
PH
257PH/13 Installed PCRE version 7.2. This needed some changes because of the new
258 way in which PCRE > 7.0 is built.
259
8669f003
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260PH/14 Implemented queue_only_load_latch.
261
a4dc33a8
PH
262PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
263 MAIL command. The effect was to mangle the value on 64-bit systems.
264
d6a60c0f
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265PH/16 Another patch from the Sieve maintainer.
266
8f128379
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267PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
268
8932dffe
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269PH/18 If a system quota error occurred while trying to create the file for
270 a maildir delivery, the message "Mailbox is full" was not appended to the
271 bounce if the delivery eventually timed out. Change 4.67/27 below applied
272 only to a quota excession during the actual writing of the file.
d6a60c0f 273
ddea74fa 274PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
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275 characters?) which causes problems in log lines. The DN values are now
276 passed through string_printing() before being added to log lines.
277
ddea74fa 278PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
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279 and InterBase are left for another time.)
280
ddea74fa
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281PH/21 Added message_body_newlines option.
282
ce9f225c
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283PH/22 Guard against possible overflow in moan_check_errorcopy().
284
19897d52
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285PH/23 POSIX allows open() to be a macro; guard against that.
286
bc64a74d
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287PH/24 If the recipient of an error message contained an @ in the local part
288 (suitably quoted, of course), incorrect values were put in $domain and
289 $local_part during the evaluation of errors_copy.
290
eb4c0de6 291
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292Exim version 4.67
293-----------------
294
22ad45c9
MH
295MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
296 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
297 Jan Srzednicki.
298
b4ed4da0
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299PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
300 issue a MAIL command.
301
431b7361
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302PH/02 In an ACL statement such as
303
304 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
305
306 if a client was not listed at all, or was listed with a value other than
307 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
308 the condition was not true (as it should be), so access was not denied.
309 The bug was that the ! inversion was incorrectly passed on to the second
310 item. This has been fixed.
311
312PH/03 Added additional dnslists conditions == and =& which are different from
313 = and & when the dns lookup returns more than one IP address.
314
83da1223
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315PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
316 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
317
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318PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
319 FSYNC, which compiles an option called disable_fsync that allows for
320 bypassing fsync(). The documentation is heavily laced with warnings.
321
34c5e8dd
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322SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
323
bbe15da8
PH
324PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
325 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
326 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
327 including adding "make clean"; (3) Added -fPIC when compiling the test
328 dynamically loaded module, to get rid of a warning.
329
0e8a9471
MH
330MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
331 message fails, move_frozen_messages = true and ignore_bounce_errors_after
332 = 0s. The bug is otherwise harmless.
333
f0872424
PH
334PH/07 There was a bug in the dovecot authenticator such that the value of
335 $auth1 could be overwritten, and so not correctly preserved, after a
336 successful authentication. This usually meant that the value preserved by
337 the server_setid option was incorrect.
338
b01dd148
PH
339PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
340
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341PH/09 Installed PCRE release 7.0.
342
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343PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
344 run for batched SMTP input. It is now run at the start of every message
345 in the batch. While fixing this I discovered that the process information
346 (output by running exiwhat) was not always getting set for -bs and -bS
347 input. This is fixed, and it now also says "batched" for BSMTP.
348
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349PH/11 Added control=no_pipelining.
350
41c7c167
PH
351PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
352 patch, slightly modified), and move the expansion of helo_data till after
353 the connection is made in the smtp transport (so it can use these
354 values).
355
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356PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
357
f3f065bb
PH
358PH/14 Added log_selector = +pid.
359
047bdd8c
PH
360PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
361
0ce9abe6
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362PH/16 Add ${if forany and ${if forall.
363
0e22dfd1
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364PH/17 Added dsn_from option to vary the From: line in DSNs.
365
4c590bd1
PH
366PH/18 Flush SMTP output before performing a callout, unless control =
367 no_callout_flush is set.
368
09945f1e
PH
369PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
370 was true (the default) a successful delivery failed to delete the retry
371 item, thus causing premature timeout of the address. The bug is now
372 fixed.
373
c51b8e75
PH
374PH/20 Added hosts_avoid_pipelining to the smtp transport.
375
e28326d8
PH
376PH/21 Long custom messages for fakedefer and fakereject are now split up
377 into multiline reponses in the same way that messages for "deny" and
378 other ACL rejections are.
379
75b1493f
PH
380PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
381 with slight modification.
382
7c5214ec
PH
383PH/23 Applied sieve patches from the maintainer "tracking the latest notify
384 draft, changing the syntax and factoring some duplicate code".
385
4311097e
PH
386PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
387 for deliveries of the second and subsequent messages over the same SMTP
388 connection.
389
29f89cad
PH
390PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
391 ${reduce, with only minor "tidies".
392
5e687460
SC
393SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
394
c3611384
PH
395PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
396 expansion side effects.
397
5a11a7b4
PH
398PH/27 When a message times out after an over-quota error from an Exim-imposed
399 quota, the bounce message says "mailbox is full". This message was not
400 being given when it was a system quota that was exceeded. It now should
401 be the same.
402
0e20aff9
MH
403MH/03 Made $recipients available in local_scan(). local_scan() already has
404 better access to the recipient list through recipients_list[], but
405 $recipients can be useful in postmaster-provided expansion strings.
406
ca86f471
PH
407PH/28 The $smtp_command and $smtp_command_argument variables were not correct
408 in the case of a MAIL command with additional options following the
409 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
410 were accidentally chopped off.
411
a14e5636
PH
412PH/29 SMTP synchronization checks are implemented when a command is read -
413 there is a check that no more input is waiting when there shouldn't be
414 any. However, for some commands, a delay in an ACL can mean that it is
415 some time before the response is written. In this time, more input might
416 arrive, invalidly. So now there are extra checks after an ACL has run for
417 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
418 pipelining has not been advertised.
419
ec95d1a6
PH
420PH/30 MH's patch to allow iscntrl() characters to be list separators.
421
42855d71
PH
422PH/31 Unlike :fail:, a custom message specified with :defer: was not being
423 returned in the SMTP response when smtp_return_error_details was false.
424 This has been fixed.
425
57c2c631
PH
426PH/32 Change the Dovecot authenticator to use read() and write() on the socket
427 instead of the C I/O that was originally supplied, because problems were
428 reported on Solaris.
429
58c01c94
PH
430PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
431 Exim which did not show up earlier: it was assuming that a call to
432 SSL_CTX_set_info_callback() might give an error value. In fact, there is
433 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
434 was a macro that became an assignment, so it seemed to work. This has
435 changed to a proper function call with a void return, hence the compile
436 error. Exim's code has been fixed.
437
dee5a20a
PH
438PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
439 cpus.
440
d2ee6114
PH
441PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
442
b2d5182b
PH
443PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
444
79749a79
PH
445PH/37 If a message is not accepted after it has had an id assigned (e.g.
446 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
447 "Completed" line in the log. When some messages of this type were
448 selected by exigrep, they were listed as "not completed". Others were
449 picked up by some special patterns. I have improved the selection
450 criteria to be more general.
79749a79 451
c456d9bb
PH
452PH/38 The host_find_failed option in the manualroute router can now be set
453 to "ignore", to completely ignore a host whose IP address cannot be
454 found. If all hosts are ignored, the behaviour is controlled by the new
455 host_all_ignored option.
456
cd9868ec
PH
457PH/39 In a list of hosts for manualroute, if one item (either because of multi-
458 homing or because of multiple MX records with /mx) generated more than
459 one IP address, and the following item turned out to be the local host,
460 all the secondary addresses of the first item were incorrectly removed
461 from the list, along with the local host and any following hosts (which
462 is what is supposed to happen).
463
ebeaf996
PH
464PH/40 When Exim receives a message, it writes the login name, uid, and gid of
465 whoever called Exim into the -H file. In the case of the daemon it was
466 behaving confusingly. When first started, it used values for whoever
467 started the daemon, but after a SIGHUP it used the Exim user (because it
468 calls itself on a restart). I have changed the code so that it now always
469 uses the Exim user.
470
2679d413
PH
471PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
472 message are rejected with the same error (e.g. no authentication or bad
473 sender address), and a DATA command is nevertheless sent (as can happen
474 with PIPELINING or a stupid MUA), the error message that was given to the
475 RCPT commands is included in the rejection of the DATA command. This is
476 intended to be helpful for MUAs that show only the final error to their
477 users.
478
84024b72
PH
479PH/42 Another patch from the Sieve maintainer.
480
8005d38e
SC
481SC/02 Eximstats - Differentiate between permanent and temporary rejects.
482 Eximstats - Fixed some broken HTML links and added missing column headers
483 (Jez Hancock).
484 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
485 columns for Rejects, Temp Rejects, Ham, and Spam rows.
486
3298c6c6
SC
487SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
488
a43a27c5
PH
489PH/43 Yet another patch from the Sieve maintainer.
490
58eb016e 491PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
492 the response to the final '.' that terminates a message, but only in the
493 case where the client has not sent further data following the '.'
494 (unfortunately, this is allowed). However, in many cases there won't be
495 any further data because there won't be any more messages to send. A call
496 to select() can be used: if it shows that the input is "ready", there is
497 either input waiting, or the socket has been closed. An attempt to read
498 the next input character can distinguish the two cases. Previously, Exim
58eb016e 499 would have sent an OK response which the client would never have see.
563b63fa
PH
500 This could lead to message repetition. This fix should cure that, at
501 least in a lot of common cases.
58eb016e 502
b43a74ea
PH
503PH/45 Do not advertise STARTTLS in response to HELP unless it would be
504 advertised in response to EHLO.
505
b4ed4da0 506
5dd1517f
PH
507Exim version 4.66
508-----------------
509
510PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
511 fixed by 4.65/MH/01 (is this a record?) are fixed:
512
513 (i) An empty string was always treated as zero by the numeric comparison
514 operators. This behaviour has been restored.
515
516 (ii) It is documented that the numeric comparison operators always treat
517 their arguments as decimal numbers. This was broken in that numbers
518 starting with 0 were being interpreted as octal.
519
520 While fixing these problems I realized that there was another issue that
521 hadn't been noticed. Values of message_size_limit (both the global option
522 and the transport option) were treated as octal if they started with 0.
523 The documentation was vague. These values are now always treated as
524 decimal, and I will make that clear in the documentation.
525
526
93cfa765
TK
527Exim version 4.65
528-----------------
529
530TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
531 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
532 versions. (#438)
533
d6066548
MH
534MH/01 Don't check that the operands of numeric comparison operators are
535 integers when their expansion is in "skipping" mode (fixes bug
536 introduced by 4.64-PH/07).
537
4362ff0d
PH
538PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
539 child addresses, Exim now panics and dies. Previously, because the count
540 is held in a short int, deliveries were likely to be lost. As such a
541 large number of recipients for a single message is ridiculous
542 (performance will be very, very poor), I have chosen to impose a limit
543 rather than extend the field.
544
93cfa765 545
944e9e9c
TF
546Exim version 4.64
547-----------------
aa41d2de 548
21d74bd9
TK
549TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
550 leftover -K file (the existence of which was triggered by #402).
551 While we were at it, introduced process PID as part of the -K
552 filename. This should rule out race conditions when creating
553 these files.
554
555TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
556 processing considerably. Previous code took too long for large mails,
557 triggering a timeout which in turn triggers #401.
558
559TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
560 in the DK code in transports.c. sendfile() is not really portable,
561 hence the _LINUX specificness.
944e9e9c
TF
562
563TF/01 In the add_headers option to the mail command in an Exim filter,
564 there was a bug that Exim would claim a syntax error in any
565 header after the first one which had an odd number of characters
566 in the field name.
567
2b1c6e3a
PH
568PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
569 callout verification, Exim cached a "reject" for the entire domain. This
570 is correct for most verifications, but it is not correct for a recipient
571 verification with use_sender or use_postmaster set, because in that case
572 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
573 case of MAIL FROM:<> rejection from other early rejections (e.g.
574 rejection of HELO). When verifying a recipient using a non-null MAIL
575 address, the cache is ignored if it shows MAIL FROM:<> rejection.
576 Whatever the result of the callout, the value of the domain cache is
577 left unchanged (for any other kind of callout, getting as far as trying
578 RCPT means that the domain itself is ok).
579
1f872c80
PH
580PH/02 Tidied a number of unused variable and signed/unsigned warnings that
581 gcc 4.1.1 threw up.
582
583PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
584 manifest itself as EPIPE rather than ECONNECT. When tidying away a
585 session, the daemon ignores ECONNECT errors and logs others; it now
586 ignores EPIPE as well.
587
d203e649
PH
588PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
589 (quoted-printable decoding).
590
cc2ed8f7 591PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 592 later the small subsequent patch to fix an introduced bug.
f951fd57 593
ddfcd446
PH
594PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
595
d45b1de8
PH
596PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
597
598PH/08 An error is now given if message_size_limit is specified negative.
599
38a0a95f 600PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 601 to be given (somewhat) arbitrary names.
38a0a95f 602
a2405d83
JJ
603JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
604 in 4.64-PH/09.
605
606JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
607 miscellaneous code fixes
608
6ea85e9a
PH
609PH/10 Added the log_reject_target ACL modifier to specify where to log
610 rejections.
611
26da7e20
PH
612PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
613 hostname. This is wrong, because it relates to the incoming message (and
614 probably the interface on which it is arriving) and not to the outgoing
615 callout (which could be using a different interface). This has been
616 changed to use the value of the helo_data option from the smtp transport
617 instead - this is what is used when a message is actually being sent. If
618 there is no remote transport (possible with a router that sets up host
619 addresses), $smtp_active_hostname is used.
6ea85e9a 620
14aa5a05 621PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 622 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
623 (a) The code assumed that strncpy() returns a negative number on buffer
624 overflow, which isn't the case. Replaced with Exim's string_format()
625 function.
626 (b) There were several signed/unsigned issues. I just did the minimum
627 hacking in of casts. There is scope for a larger refactoring.
628 (c) The code used strcasecmp() which is not a standard C function.
629 Replaced with Exim's strcmpic() function.
630 (d) The code set only $1; it now sets $auth1 as well.
631 (e) A simple test gave the error "authentication client didn't specify
632 service in request". It would seem that Dovecot has changed its
633 interface. Fortunately there's a specification; I followed it and
634 changed what the client sends and it appears to be working now.
635
ff75a1f7
PH
636PH/13 Added $message_headers_raw to provide the headers without RFC 2047
637 decoding.
638
e6f6568e
PH
639PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
640 address A is aliased to B and C, where B exists and C does not. Without
641 -v the output is "A verified" because verification stops after a
642 successful redirection if more than one address is generated. However,
643 with -v the child addresses are also verified. Exim was outputting "A
644 failed to verify" and then showing the successful verification for C,
645 with its parentage. It now outputs "B failed to verify", showing B's
646 parentage before showing the successful verification of C.
647
d6f6e0dc
PH
648PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
649 look up a TXT record in a specific list after matching in a combined
650 list.
651
322050c2
PH
652PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
653 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
654 they consult the DNS. I had assumed they would set it the way they
655 wanted; and indeed my experiments on Linux seem to show that in some
656 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
657 To be on the safe side, however, I have now made the interface to
658 host_find_byname() similar to host_find_bydns(), with an argument
659 containing the DNS resolver options. The host_find_byname() function now
660 sets these options at its start, just as host_find_bydns() does. The smtp
661 transport options dns_qualify_single and dns_search_parents are passed to
662 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
663 of host_find_byname() use the default settings of RES_DEFNAMES
664 (qualify_single) but not RES_DNSRCH (search_parents).
665
08955dd3
PH
666PH/17 Applied (a modified version of) Nico Erfurth's patch to make
667 spool_read_header() do less string testing, by means of a preliminary
668 switch on the second character of optional "-foo" lines. (This is
669 overdue, caused by the large number of possibilities that now exist.
670 Originally there were few.) While I was there, I also converted the
671 str(n)cmp tests so they don't re-test the leading "-" and the first
672 character, in the hope this might squeeze out yet more improvement.
673
1eccaa59
PH
674PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
675 flag allowing group syntax was set by the header_syntax check but not
676 turned off, possible causing trouble later; (2) The flag was not being
677 set at all for the header_verify test, causing "group"-style headers to
678 be rejected. I have now set it in this case, and also caused header_
679 verify to ignore an empty address taken from a group. While doing this, I
680 came across some other cases where the code for allowing group syntax
681 while scanning a header line wasn't quite right (mostly, not resetting
682 the flag correctly in the right place). These bugs could have caused
683 trouble for malformed header lines. I hope it is now all correct.
684
602e59e5
PH
685PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
686 with the "reply" argument non-NULL. The code, however (which originally
687 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
688 but it didn't always do it. This confused somebody who was copying the
689 code for some other use. I have removed all the tests.
690
411ef850
PH
691PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
692 feature that was used to support insecure browsers during the U.S. crypto
693 embargo. It requires special client support, and Exim is probably the
694 only MTA that supported it -- and would never use it because real RSA is
695 always available. This code has been removed, because it had the bad
696 effect of slowing Exim down by computing (never used) parameters for the
697 RSA_EXPORT functionality.
698
7befa435
PH
699PH/21 On the advice of Timo Sirainen, added a check to the dovecot
700 authenticator to fail if there's a tab character in the incoming data
701 (there should never be unless someone is messing about, as it's supposed
702 to be base64-encoded). Also added, on Timo's advice, the "secured" option
703 if the connection is using TLS or if the remote IP is the same as the
704 local IP, and the "valid-client-cert option" if a client certificate has
705 been verified.
706
48da4259 707PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
708 authenticators. This can be used for authorization after authentication
709 succeeds. (In the case of plaintext, it servers for both authentication
710 and authorization.)
711
48da4259
PH
712PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
713 if any retry times were supplied.
714
d1d5595c
PH
715PH/24 Exim crashed if verify=helo was activated during an incoming -bs
716 connection, where there is no client IP address to check. In this
717 situation, the verify now always succeeds.
718
0ef732d9
PH
719PH/25 Applied John Jetmore's -Mset patch.
720
328895cc
PH
721PH/26 Added -bem to be like -Mset, but loading a message from a file.
722
fd700877
PH
723PH/27 In a string expansion for a processed (not raw) header when multiple
724 headers of the same name were present, leading whitespace was being
725 removed from all of them, but trailing whitespace was being removed only
726 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
727 before concatenation. Completely empty headers in a concatenation (as
728 before) are ignored.
fd700877 729
8dce1a6f
PH
730PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
731 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
732
17af4a17
PH
733PH/29 [Removed. This was a change that I later backed out, and forgot to
734 correct the ChangeLog entry (that I had efficiently created) before
735 committing the later change.]
f6c332bd
PH
736
737PH/30 Exim was sometimes attempting to deliver messages that had suffered
738 address errors (4xx response to RCPT) over the same connection as other
739 messages routed to the same hosts. Such deliveries are always "forced",
740 so retry times are not inspected. This resulted in far too many retries
741 for the affected addresses. The effect occurred only when there were more
742 hosts than the hosts_max_try setting in the smtp transport when it had
743 the 4xx errors. Those hosts that it had tried were not added to the list
744 of hosts for which the message was waiting, so if all were tried, there
745 was no problem. Two fixes have been applied:
746
747 (i) If there are any address or message errors in an SMTP delivery, none
748 of the hosts (tried or untried) are now added to the list of hosts
749 for which the message is waiting, so the message should not be a
750 candidate for sending over the same connection that was used for a
751 successful delivery of some other message. This seems entirely
752 reasonable: after all the message is NOT "waiting for some host".
753 This is so "obvious" that I'm not sure why it wasn't done
754 previously. Hope I haven't missed anything, but it can't do any
755 harm, as the worst effect is to miss an optimization.
756
757 (ii) If, despite (i), such a delivery is accidentally attempted, the
758 routing retry time is respected, so at least it doesn't keep
759 hammering the server.
760
c1114884
PH
761PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
762 in ${readsocket because some servers need this prod.
763
7a0743eb
PH
764PH/32 Added some extra debug output when updating a wait-xxx database.
765
0d85fa3f
PH
766PH/33 The hint "could be header name not terminated by colon", which has been
767 given for certain expansion errors for a long time, was not being given
768 for the ${if def:h_colon_omitted{... case.
769
1bf43b78
PH
770PH/34 The spec says: "With one important exception, whenever a domain list is
771 being scanned, $domain contains the subject domain." There was at least
772 one case where this was not true.
773
520de300
PH
774PH/35 The error "getsockname() failed: connection reset by peer" was being
775 written to the panic log as well as the main log, but it isn't really
776 panic-worthy as it just means the connection died rather early on. I have
777 removed the panic log writing for the ECONNRESET error when getsockname()
778 fails.
779
48c7f9e2
PH
780PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
781 runs only) independently of the message's sender address. This meant
782 that, if the 4xx error was in fact related to the sender, a different
783 message to the same recipient with a different sender could confuse
784 things. In particualar, this can happen when sending to a greylisting
785 server, but other circumstances could also provoke similar problems.
786 I have changed the default so that the retry time for these errors is now
787 based a combination of the sender and recipient addresses. This change
788 can be overridden by setting address_retry_include_sender=false in the
789 smtp transport.
790
99ea1c86
PH
791PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
792 remote server are returned as part of bounce messages. This was not
793 happening for LMTP over a pipe (the lmtp transport), but now it is the
794 same for both kinds of LMTP.
795
a2042e78
PH
796PH/38 Despite being documented as not happening, Exim was rewriting addresses
797 in header lines that were in fact CNAMEs. This is no longer the case.
798
4fbcfc2e
PH
799PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
800 and queue runs started by the daemon processed all messages. This has
801 been fixed so that -R and -S can now usefully be given with -q<time>.
802
aa41d2de
PH
803PH/40 Import PCRE release 6.7 (fixes some bugs).
804
af561417
PH
805PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
806
3cc66b45
PH
807PH/42 Give an error if -q is specified more than once.
808
194cc0e4
PH
809PH/43 Renamed the variables $interface_address and $interface_port as
810 $received_ip_address and $received_port, to make it clear that these
811 values apply to message reception, and not to the outgoing interface when
812 a message is delivered. (The old names remain recognized, of course.)
813
a401ddaa
PH
814PH/44 There was no timeout on the connect() call when using a Unix domain
815 socket in the ${readsocket expansion. There now is.
816
4e88a19f
PH
817PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
818 be meaningful with "accept".
819
d7d7b289
SC
820SC/01 Eximstats V1.43
821 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
822
823SC/02 Eximstats V1.44
824 Use a glob alias rather than an array ref in the generated
825 parser. This improves both readability and performance.
826
827SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
828 Collect SpamAssassin and rejection statistics.
829 Don't display local sender or destination tables unless
830 there is data to show.
831 Added average volumes into the top table text output.
832
833SC/04 Eximstats V1.46
834 Collect data on the number of addresses (recipients)
835 as well as the number of messages.
836
837SC/05 Eximstats V1.47
838 Added 'Message too big' to the list of mail rejection
839 reasons (thanks to Marco Gaiarin).
840
841SC/06 Eximstats V1.48
842 Mainlog lines which have GMT offsets and are too short to
843 have a flag are now skipped.
844
845SC/07 Eximstats V1.49 (Alain Williams)
846 Added the -emptyok flag.
847
848SC/08 Eximstats V1.50
849 Fixes for obtaining the IP address from reject messages.
850
0ea2a468
JJ
851JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
852 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
853 whitesspace changes from 4.64-PH/27
854
855JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
856 match 4.64-PH/13
857
858JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
859 are found, allow negative numbers in numeric criteria)
860
861JJ/06 exipick.20061117.2, added new $message_body_missing variable
862
863JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
864 to match changes made in 4.64-PH/43
865
8a10f5a4
PH
866PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
867
30e18802
PH
868PH/47 Put in an explicit test for a DNS lookup of an address record where the
869 "domain" is actually an IP address, and force a failure. This locks out
870 those revolvers/nameservers that support "A-for-A" lookups, in
871 contravention of the specifications.
872
55728a4f
PH
873PH/48 When a host name was looked up from an IP address, and the subsequent
874 forward lookup of the name timed out, the host name was left in
875 $sender_host_name, contrary to the specification.
d7d7b289 876
d7837193
PH
877PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
878 restricted to single-key lookups, Exim was not diagnosing an error if
879 * or *@ was used with a query-style lookup.
880
87054a31
PH
881PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
882
ea2c01d2
MH
883MH/01 local_scan ABI version incremented to 1.1. It should have been updated
884 long ago, but noone interested enough thought of it. Let's just say that
885 the "1.1" means that there are some new functions that weren't there at
886 some point in the past.
887
e4fa6968
PH
888PH/51 Error processing for expansion failure of helo_data from an smtp
889 transport during callout processing was broken.
890
56f5d9bd
PH
891PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
892 tested/used via the -bh/-bhc/-bs options.
893
922e1c28
PH
894PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
895 bug, fixed in subsequent PCRE releases).
896
21eb6e72
PH
897PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
898 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
899
a0540757
PH
900PH/55 Check for a ridiculously long file name in exim_dbmbuild.
901
944e9e9c 902
478be7b0
SC
903Exim version 4.63
904-----------------
905
906SC/01 Use a glob alias rather than an array ref in eximstats generated
907 parser. This improves both readability and performance.
908
909SC/02 Collect SpamAssassin and rejection statistics in eximstats.
910 Don't display local sender or destination tables in eximstats unless
911 there is data to show.
912 Added average volumes into the eximstats top table text output.
913
914SC/03 Collect data on the number of addresses (recipients) as well
915 as the number of messages in eximstats.
916
2b965a65
TF
917TF/01 Correct an error in the documentation for the redirect router. Exim
918 does (usually) call initgroups() when daemonizing.
478be7b0 919
45b91596
PH
920TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
921 with consistent privilege compared to when running as a daemon.
478be7b0 922
c59f5781
TF
923TF/03 Note in the spec that $authenticated_id is not set for local
924 submissions from trusted users.
925
90fc3069
TF
926TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
927 Thanks to Dean Brooks <dean@iglou.com> for the patch.
928
6083aca0
TF
929TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
930 by adding some example configuration directives to the default
931 configuration file. A little bit of work is required to uncomment the
932 directives and define how usernames and passwords are checked, but
933 there is now a framework to start from.
934
765b530f
PH
935PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
936 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
937 without this. I don't know how relevant this is to other LDAP libraries.
938
4e167a8c
PH
939PH/02 Add the verb name to the "unknown ACL verb" error.
940
4608d683
PH
941PH/03 Magnus Holmgren's patch for filter_prepend_home.
942
b8dc3e4a
PH
943PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
944
5418e93b
PH
945PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
946 directory not expanded when it should be if an expanded home directory
947 was set for the address (which is overridden by the transport).
948
b4a9bda2
PH
949PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
950 libradius.
951
45b91596
PH
952PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
953 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
954 because it is too late at that time, and has no effect.
955
5547e2c5
PH
956PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
957 security issue with \' (bugzilla #107). I could not use the
958 PQescapeStringConn() function, because it needs a PGconn value as one of
959 its arguments.
960
dbcef0ea
PH
961PH/08 When testing addresses using -bt, indicate those final addresses that
962 are duplicates that would not cause an additional delivery. At least one
963 person was confused, thinking that -bt output corresponded to deliveries.
964 (Suppressing duplicates isn't a good idea as you lose the information
965 about possibly different redirections that led to the duplicates.)
966
25257489
PH
967PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
968 systems where poll() doesn't work, in particular OS X.
969
c816d124
PH
970PH/10 Added more information to debugging output for retry time not reached.
971
a9ccd69a
PH
972PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
973 operations in malware.c.
974
75fa1910
PH
975PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
976 signatures.
977
a7d7aa58
PH
978PH/13 If write_rejectlog was set false when logging was sent to syslog with
979 syslog_duplication set false, log lines that would normally be written
980 both the the main log and to the reject log were not written to syslog at
981 all.
982
42119b09
PH
983PH/14 In the default configuration, change the use of "message" in ACL warn
984 statements to "add_header".
985
41609df5
PH
986PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
987 not followed by a command (e.g. "seen endif").
988
a5bd321b
PH
989PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
990 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
991 latter.
992
e85a7ad5 993PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
994 so that it is now:
995
e85a7ad5
PH
996 ${if or { \
997 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
998 { match{$h_precedence:}{(?i)bulk|list|junk} } \
999 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1000 }{no}{yes}}
1001
e85a7ad5
PH
1002 The Auto-Submitted: and various List- headers are standardised, whereas I
1003 don't think Precedence: ever was.
5dff5817 1004
d8fe1c03
PH
1005PH/18 Refactored debugging code in route_finduser() to show more information,
1006 in particular, the error code if getpwnam() issues one.
1007
16282d2b
PH
1008PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1009 This is apparently needed in addition to the PH/07 change above to avoid
1010 any possible encoding problems.
1011
35d40a98
PH
1012PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1013 but not after initializing Perl.
1014
034d99ab
PH
1015PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1016 output them only if debugging. By default they are written stderr,
1017 apparently, which is not desirable.
1018
6ec97b1b
PH
1019PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1020 queries.
1021
e22ca4ac
JJ
1022JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1023 --not options
1024
1025JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1026
33d73e3b
PH
1027PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1028 authenticated or an ident call has been made. Suppress the default
1029 values for $authenticated_id and $authenticated_sender (but permit -oMai
1030 and -oMas) when testing with -bh.
1031
9ecb03f3
PH
1032PH/24 Re-jigged the order of the tests in the default configuration so that the
1033 tests for valid domains and recipients precede the DNS black list and CSA
1034 tests, on the grounds that those ones are more expensive.
1035
084efe8d
PH
1036PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1037 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1038 This bug exists in every version of Exim that I still have, right back to
1039 0.12.
1040
366fc9f0
PH
1041PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1042 However, an attempt to turn on case-sensitivity in a regex key by
1043 including (?-i) didn't work because the subject string was already
1044 lowercased, and the effects were non-intuitive. It turns out that a
1045 one-line patch can be used to allow (?-i) to work as expected.
1046
c59f5781 1047
c887c79e
TF
1048Exim version 4.62
1049-----------------
1050
1051TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1052 other effects) broke the use of negated acl sub-conditions.
1053
1cce3af8
PH
1054PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1055 patch).
1056
afb3eaaf
PH
1057PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1058 "Deny" causes Exim to reject the incoming connection with a 554 error.
1059 Unfortunately, if there is a major crisis, such as a disk failure,
1060 tcp-wrappers gives "deny", whereas what one would like would be some
1061 kind of temporary error. A kludge has been added to help with this.
1062 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1063 554 error is used if errno is still zero or contains ENOENT (which occurs
1064 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1065 451 error is used.
1066
e173618b
PH
1067PH/03 Add -lutil to the default FreeBSD LIBS setting.
1068
dd16e114
PH
1069PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1070 errors. Otherwise a message that provokes a temporary error (when other
1071 messages do not) can cause a whole host to time out.
1072
f7fd3850
PH
1073PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1074 addresses were routed directly to files or pipes from a redirect router.
1075 File deliveries just didn't batch; pipe deliveries might have suffered
1076 odd errors.
1077
d87df92c
PH
1078PH/06 A failure to get a lock for a hints database would erroneously always say
1079 "Failed to get write lock", even when it was really a read lock.
1080
7e9f683d
PH
1081PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1082 of 0600. This has been changed to use the value of the lockfile_mode
1083 option (which defaults to 0600).
1084
bfad5236
PH
1085PH/08 Applied small patch from the Sieve maintainer.
1086
01c490df
PH
1087PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1088 folder from quota calculations, a direct delivery into this folder messed
1089 up the contents of the maildirsize file. This was because the regex was
1090 used only to exclude .Trash (or whatever) when the size of the mailbox
1091 was calculated. There was no check that a delivery was happening into an
1092 excluded directory. This bug has been fixed by ignoring all quota
1093 processing for deliveries into excluded directories.
1094
d6629cdc
PH
1095PH/10 Added the maildirfolder_create_regex option to appendfile.
1096
1cce3af8 1097
214e2000
PH
1098Exim version 4.61
1099-----------------
1100
1101PH/01 The code for finding all the local interface addresses on a FreeBSD
1102 system running IPv6 was broken. This may well have applied to all BSD
1103 systems, as well as to others that have similar system calls. The broken
1104 code found IPv4 interfaces correctly, but gave incorrect values for the
1105 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1106 that it would not match correctly against @[] and not recognize the IPv6
1107 addresses as local.
1108
f9daeae0
PH
1109PH/02 The ipliteral router was not recognizing addresses of the form user@
1110 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1111
7e66e54d
PH
1112PH/03 Added disable_ipv6.
1113
c8ea1597
PH
1114PH/04 Changed $reply_address to use the raw form of the headers instead of the
1115 decoded form, because it is most often used to construct To: headers
1116 lines in autoreplies, and the decoded form may well be syntactically
1117 invalid. However, $reply_address has leading white space removed, and all
1118 newlines turned into spaces so that the autoreply transport does not
1119 grumble.
1120
911f6fde
PH
1121PH/05 If group was specified without a user on a router, and no group or user
1122 was specified on a transport, the group from the router was ignored.
1123
47ca6d6c
PH
1124PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1125 for visible compile-time settings that can be used to change these
1126 numbers, for those that want even more. Backwards compatibility with old
1127 spool files has been maintained. However, going back to a previous Exim
1128 release will lost any variables that are in spool files.
1129
ed0e9820
PH
1130PH/07 Two small changes when running in the test harness: increase delay when
1131 passing a TCP/IP connection to a new process, in case the original
1132 process has to generate a bounce, and remove special handling of
1133 127.0.0.2 (sic), which is no longer necessary.
1134
eff37e47
PH
1135PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1136 be the same on different OS.
1137
1921d2ea
PH
1138PH/09 Moved a debug statement in filter processing to avoid a race problem when
1139 testing.
1140
b3f69ca8
JJ
1141JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1142 whether --show-vars was specified or not
1143
1144JJ/02 exipick: Added support for new ACL variable spool format introduced
1145 in 4.61-PH/06
1146
424a1c63
PH
1147PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1148 syntactically invalid From: or Reply-to: line, and a filter used this to
1149 generate an autoreply, and therefore failed to obtain an address for the
1150 autoreply, Exim could try to deliver to a non-existent relative file
1151 name, causing unrelated and misleading errors. What now happens is that
1152 it logs this as a hard delivery error, but does not attempt to create a
1153 bounce message.
1154
7a100415
PH
1155PH/11 The exinext utility has a -C option for testing purposes, but although
1156 the given file was scanned by exinext itself; it wasn't being passed on
1157 when Exim was called.
1158
19b9dc85
PH
1159PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1160 an end-of-file indication when reading a command response.
1161
309bd837
PH
1162PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1163 compiled. In many other places in Exim, IPv6 addresses are always
1164 recognized, so I have changed this. It also means that IPv4 domain
1165 literals of the form [IPV4:n.n.n.n] are now always recognized.
1166
59e82a2a
PH
1167PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1168 used if the router is not running as root, for example, when verifying at
1169 ACL time, or when using -bh. The debugging output from this situation was
1170 non-existent - all you got was a failure to exec. I have made two
1171 changes:
1172
1173 (a) Failures to set uid/gid, the current directory, or a process leader
1174 in a subprocess such as that created by queryprogram now generate
1175 suitable debugging ouput when -d is set.
1176
1177 (b) The queryprogram router detects when it is not running as root,
1178 outputs suitable debugging information if -d is set, and then runs
1179 the subprocess without attempting to change uid/gid.
1180
9edc04ce
PH
1181PH/15 Minor change to Makefile for building test_host (undocumented testing
1182 feature).
1183
1349e1e5
PH
1184PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1185 additional section of a DNS packet that returns MX or SRV records.
1186 Instead, it always explicitly searches for A/AAAA records. This avoids
1187 major problems that occur when a DNS server includes only records of one
1188 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1189 fixed another bug: if SRV records were looked up and the corresponding
1190 address records were *not* found in the additional section, the port
1191 values from the SRV records were lost.
1192
ea49d0e1
PH
1193PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1194 using the correct key (the original address) when searching the retry
1195 rules in order to find which one to use for generating the retry hint.
1196
064a94c9
PH
1197PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1198 adding the default one. Similarly, if it contains a Reply-To: header, the
1199 errors_reply_to option, if set, is not used.
1200
727071f8
PH
1201PH/19 When calculating a retry time, Exim used to measure the "time since
1202 failure" by looking at the "first failed" field in the retry record. Now
1203 it does not use this if it is later than than the arrival time of the
1204 message. Instead it uses the arrival time. This makes for better
1205 behaviour in cases where some deliveries succeed, thus re-setting the
1206 "first failed" field. An example is a quota failure for a huge message
1207 when small messages continue to be delivered. Without this change, the
1208 "time since failure" will always be short, possible causing more frequent
1209 delivery attempts for the huge message than are intended.
dd16e114 1210 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1211
f78eb7c6
PH
1212PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1213 $1, $2, $3) because the numerical variables can be reset during some
1214 expansion items (e.g. "match"), thereby losing the authentication data.
1215
21c28500
PH
1216PH/21 Make -bV show the size of off_t variables so that the test suite can
1217 decide whether to run tests for quotas > 2G.
1218
1219PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1220 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1221 filecount value is greater than 2G or if a quota value is greater than 2G
1222 on a system where the size of off_t is not greater than 4, a panic error
1223 is given.
1224
1688f43b
PH
1225PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1226 never match. The debug and -bh output now contains an explicit error
1227 message indicating a malformed IPv4 address or mask.
1228
1229PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1230 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1231 PH/23 above applies.
1232
9675b384
PH
1233PH/25 Do not write to syslog when running in the test harness. The only
1234 occasion when this arises is a failure to open the main or panic logs
1235 (for which there is an explicit test).
1236
6a3f1455
PH
1237PH/26 Added the /no_tell option to "control=freeze".
1238
dac79d3e
PH
1239PH/27 If a host name lookup failed very early in a connection, for example, if
1240 the IP address matched host_lookup and the reverse lookup yielded a name
1241 that did not have a forward lookup, an error message of the form "no IP
1242 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1243 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1244
5977a0b3
PH
1245PH/28 An enabling patch from MH: add new function child_open_exim2() which
1246 allows the sender and the authenticated sender to be set when
1247 submitting a message from within Exim. Since child_open_exim() is
1248 documented for local_scan(), the new function should be too.
1249
c91535f3
PH
1250PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1251 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1252 results in an empty string is now treated as unset.
1253
0d46a8c8
PH
1254PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1255
278c6e6c
PH
1256PH/31 Added sender_verify_fail logging option.
1257
2cbb4081
PH
1258PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1259 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1260 tidied the source and removed it altogether.
1261
3eef829e
PH
1262PH/33 When a queue run was abandoned because the load average was too high, a
1263 log line was always written; now it is written only if the queue_run log
1264 selector is set. In addition, the log line for abandonment now contains
1265 information about the queue run such as the pid. This is always present
1266 in "start" and "stop" lines but was omitted from the "abandon" line.
1267
1ab95fa6
PH
1268PH/34 Omit spaces between a header name and the colon in the error message that
1269 is given when verify = headers_syntax fails (if there are lots of them,
1270 the message gets confusing).
1271
230205fc
PH
1272PH/35 Change the default for dns_check_names_pattern to allow slashes within
1273 names, as there are now some PTR records that contain slashes. This check
1274 is only to protect against broken name servers that fall over on strange
1275 characters, so the fact that it applies to all lookups doesn't matter.
1276
75e0e026
PH
1277PH/36 Now that the new test suite is complete, we can remove some of the
1278 special code in Exim that was needed for the old test suite. For example,
1279 sorting DNS records because real resolvers return them in an arbitrary
1280 order. The new test suite's fake resolver always returns records in the
1281 same order.
1282
1283PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1284 bounces) except when queue_only is set, to avoid logging races between
1285 the different processes.
1286
145396a6
PH
1287PH/38 Panic-die if .include specifies a non-absolute path.
1288
3cd34f13
PH
1289PH/39 A tweak to the "H" retry rule from its user.
1290
11121d3d
JJ
1291JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1292 a label. They prevented compilation on older perls.
1293
1294JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1295 a warning to be raised on newish perls.
1296
1297JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1298 on queue. Changes to match documented behaviour of showing count of
1299 messages matching specified criteria.
1300
8def5aaf
PH
1301PH/40 Changed the default ident timeout from 30s to 5s.
1302
929ba01c
PH
1303PH/41 Added support for the use of login_cap features, on those BSD systems
1304 that have them, for controlling the resources used by pipe deliveries.
1305
2632889e
PH
1306PH/42 The content-scanning code uses fopen() to create files in which to put
1307 message data. Previously it was not paying any attention to the mode of
1308 the files. Exim runs with umask(0) because the rest of the code creates
1309 files with open(), and sets the required mode explicitly. Thus, these
1310 files were ending up world-writeable. This was not a big issue, because,
1311 being within the spool directory, they were not world-accessible. I have
1312 created a function called modefopen, which takes an additional mode
1313 argument. It sets umask(777), creates the file, chmods it to the required
1314 mode, then resets the umask. All the relevant calls to fopen() in the
1315 content scanning code have been changed to use this function.
1316
944a9c55
PH
1317PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1318 to 24 hours. This avoids potential overflow problems when processing G
1319 and H retry rules. I suspect nobody ever tinkers with this value.
1320
4a23603b
PH
1321PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1322
4730f942
PH
1323PH/45 When the plaintext authenticator is running as a client, the server's
1324 challenges are checked to ensure they are valid base64 strings. By
1325 default, the authentication attempt is cancelled if an invalid string is
1326 received. Setting client_ignore_invalid_base64 true ignores these errors.
1327 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1328 they are received. Thus, the responses can be made to depend on the
1329 challenges. If an invalid string is ignored, an empty string is placed in
1330 the variable.
1331
30dba1e6
PH
1332PH/46 Messages that are created by the autoreply transport now contains a
1333 References: header, in accordance with RFCs 2822 and 3834.
1334
382afc6b
PH
1335PH/47 Added authenticated_sender_force to the smtp transport.
1336
a86229cf
PH
1337PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1338
50c99ba6
PH
1339PH/49 Installed latest patch from the Sieve maintainer.
1340
d35e429d
PH
1341PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1342 was also set, the appendfile transport was unnecessarily scanning a
1343 directory of message files (e.g. for maildir delivery) to find the count
1344 of files (along with the size), even though it did not need this
1345 information. It now does the scan only if it needs to find either the
1346 size of the count of files.
1347
f90d018c
PH
1348PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1349
75def545
PH
1350PH/52 Two bugs concerned with error handling when the smtp transport is
1351 used in LMTP mode:
1352
1353 (i) Exim was not creating retry information for temporary errors given
1354 for individual recipients after the DATA command when the smtp transport
1355 was used in LMTP mode. This meant that they could be retried too
1356 frequently, and not timed out correctly.
1357
1358 (ii) Exim was setting the flag that allows error details to be returned
1359 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1360 recipients that were returned after the DATA command.
1361
1362PH/53 This is related to PH/52, but is more general: for any failing address,
1363 when detailed error information was permitted to be returned to the
1364 sender, but the error was temporary, then after the final timeout, only
1365 "retry timeout exceeded" was returned. Now it returns the full error as
1366 well as "retry timeout exceeded".
1367
c46782ef
PH
1368PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1369 do this, and (what is worse) MTAs that accept it.
1370
71fafd95
PH
1371PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1372 will now be deprecated.
1373
2c5db4fd
PH
1374PH/56 New os.c-cygwin from the Cygwin maintainer.
1375
9cf6b11a
JJ
1376JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1377 formats (previously only available in exim formats via -bpr, -bpru,
1378 and -bpra. Now also available in native and exiqgrep formats)
1379
1380JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1381 with very large, slow to parse queues
1382
1383JJ/08 exipick: added ! as generic prefix to negate any criteria format
1384
1385JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1386
898d150f
PH
1387PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1388 responses to authentication challenges, though it was showing the
1389 challenges; (ii) I've removed the CR characters from the debug output for
1390 SMTP output lines.
1391
46218253
PH
1392PH/58 Allow for the insertion of a newline as well as a space when a string
1393 is turned into more than one encoded-word during RFC 2047 encoding. The
1394 Sieve code now uses this.
1395
e97957bc
PH
1396PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1397 data_4xx, lost_connection, tls_required.
1398
81e509d7
PH
1399PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1400 message was being sent as an SMTP response.
1401
3d240ff7
PH
1402PH/61 Add -l and -k options to exicyclog.
1403
b37c4101
PH
1404PH/62 When verifying, if an address was redirected to one new address, so that
1405 verification continued, and the new address failed or deferred after
1406 having set something in $address_data, the value of $address_data was not
1407 passed back to the ACL. This was different to the case when no
1408 redirection occurred. The value is now passed back in both cases.
1409
79378e0f
PH
1410PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1411 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1412 use login_cap.h, so on its own it isn't the distinguishing feature. The
1413 new name refers directly to the setclassresources() function.
1414
e49c7bb4
PH
1415PH/65 Added configuration files for NetBSD3.
1416
d114ec46
PH
1417PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1418
f3d7df6c
PH
1419PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1420 is preferred over IPv4.
1421
715ab376
PH
1422PH/68 The bounce_return_message and bounce_return_body options were not being
1423 honoured for bounces generated during the reception of non-SMTP messages.
1424 In particular, this applied to messages rejected by the ACL. This bug has
1425 been fixed. However, if bounce_return_message is true and bounce_return_
1426 body is false, the headers that are returned for a non-SMTP message
1427 include only those that have been read before the error was detected.
1428 (In the case of an ACL rejection, they have all been read.)
1429
6b31b150
PH
1430PH/69 The HTML version of the specification is now built in a directory called
1431 spec_html instead of spec.html, because the latter looks like a path with
1432 a MIME-type, and this confuses some software.
1433
1434PH/70 Catch two compiler warnings in sieve.c.
1435
d515a917
PH
1436PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1437 function verify_get_ident() calls ip_connect() to connect a socket, but
1438 if the "connect()" function timed out, ip_connect() used to close the
1439 socket. However, verify_get_ident() also closes the socket later, and in
1440 between Exim writes to the log, which may get opened at this point. When
1441 the socket was closed in ip_connect(), the log could get the same file
1442 descriptor number as the socket. This naturally causes chaos. The fix is
1443 not to close the socket in ip_connect(); the socket should be closed by
1444 the function that creates it. There was only one place in the code where
1445 this was missing, in the iplookup router, which I don't think anybody now
1446 uses, but I've fixed it anyway.
1447
9b8fadde
PH
1448PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1449 well as to direct DNS lookups. Otherwise the handling of names in host
1450 lists is inconsistent and therefore confusing.
1451
214e2000 1452
5de37277
PH
1453Exim version 4.60
1454-----------------
1455
cc38ddbf
PH
1456PH/01 Two changes to the default runtime configuration:
1457
1458 (1) Move the checks for relay_from_hosts and authenticated clients from
1459 after to before the (commented out) DNS black list checks.
1460
1461 (2) Add control=submission to the relay_from_hosts and authenticated
1462 clients checks, on the grounds that messages accepted by these
1463 statements are most likely to be submissions.
5de37277 1464
72fdd6ae
PH
1465PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1466
1467 (1) Generate an error if the third argument for the ${prvs expansion is
1468 not a single digit.
1469
1470 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1471 string.
1472
1473 (3) Reset the variables that are obtained from the first argument of
1474 ${prvscheck and used in the second argument before leaving the code,
1475 because their memory is reclaimed, so using them afterwards may do
1476 silly things.
1477
1478 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1479 one (it's much easier than Tom thought :-).
1480
1481 (5) Because of (4), we can now allow for the use of $prvscheck_result
1482 inside the third argument.
cb9328de 1483
cb741023
PH
1484PH/03 For some reason, the default setting of PATH when running a command from
1485 a pipe transport was just "/usr/bin". I have changed it to
1486 "/bin:/usr/bin".
1487
f174f16e
PH
1488PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1489 anything to be listed in the output from -bV.
b2f5a032 1490
c25242d7
PH
1491PH/05 When a filter generated an autoreply, the entire To: header line was
1492 quoted in the delivery log line, like this:
1493
1494 => >A.N.Other <ano@some.domain> <original@ddress> ...
1495
1496 This has been changed so that it extracts the operative address. There
1497 may be more than one such address. If so, they are comma-separated, like
1498 this:
1499
1500 => >ano@some.domain,ona@other.domain <original@ddress> ...
1501
82c19f95
PH
1502PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1503 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1504 not being looked up in the rDNS to get a host name, Exim was showing the
1505 IP address twice in Received: lines, even though the IP addresses were
1506 identical. For example:
1507
1508 Received: from [1.2.3.4] (helo=[1.2.3.4])
1509
1510 However, if the real host name was known, it was omitting the HELO data
1511 if it matched the actual IP address. This has been tidied up so that it
1512 doesn't show the same IP address twice.
1513
d7ffbc12
PH
1514PH/07 When both +timestamp and +memory debugging was on, the value given by
1515 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1516 called by the debug printing, thereby overwriting the timestamp buffer.
1517 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1518
9f526266
PH
1519PH/08 When the original message was included in an autoreply transport, it
1520 always said "this is a copy of the message, including all the headers",
1521 even if body_only or headers_only was set. It now gives an appropriate
1522 message.
1523
87fcc8b9
PH
1524PH/09 Applied a patch from the Sieve maintainer which:
1525
1526 o fixes some comments
1527 o adds the (disabled) notify extension core
1528 o adds some debug output for the result of if/elsif tests
1529 o points to the current vacation draft in the documentation
1530 and documents the missing references header update
1531
1532 and most important:
1533
1534 o fixes a bug in processing the envelope test (when testing
1535 multiple envelope elements, the last element determinted the
1536 result)
1537
456682f5
PH
1538PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1539 Electronic Mail") by including:
1540
1541 Auto-submitted: auto-generated
1542
1543 in the messages that it generates (bounce messages and others, such as
1544 warnings). In the case of bounce messages for non-SMTP mesages, there was
1545 also a typo: it was using "Auto_submitted" (underscore instead of
1546 hyphen). Since every message generated by Exim is necessarily in response
1547 to another message, thes have all been changed to:
1548
1549 Auto-Submitted: auto-replied
1550
1551 in accordance with these statements in the RFC:
1552
1553 The auto-replied keyword:
1554
1555 - SHOULD be used on messages sent in direct response to another
1556 message by an automatic process,
1557
1558 - MUST NOT be used on manually-generated messages,
1559
1560 - MAY be used on Delivery Status Notifications (DSNs) and Message
1561 Disposition Notifications (MDNs),
1562
1563 - MUST NOT be used on messages generated by automatic or periodic
1564 processes, except for messages which are automatic responses to
1565 other messages.
1566
3e46c1aa
PH
1567PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1568 to the default Received: header definition.
456682f5 1569
49826d12
PH
1570PH/12 Added log selector acl_warn_skipped (default on).
1571
eba0c039
PH
1572PH/13 After a successful wildlsearch lookup, discard the values of numeric
1573 variables because (a) they are in the wrong storage pool and (b) even if
1574 they were copied, it wouldn't work properly because of the caching.
1575
a0d6ba8a
PH
1576PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1577 checking when decoding. Apparently there are clients that generate
1578 overlong encoded strings. Why am I not surprised?
1579
f0917727
PH
1580PH/15 If the first argument of "${if match_address" was not empty, but did not
1581 contain an "@" character, Exim crashed. Now it writes a panic log message
1582 and treats the condition as false.
1583
096fee00
PH
1584PH/16 In autoreply, treat an empty string for "once" the same as unset.
1585
024bd3c2
PH
1586PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1587 extension "envelope-auth". The code is finished and in agreement with
1588 other implementations, but there is no documentation so far and in fact,
1589 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1590 not changing the active code.
1591
1592 Print executed "if" and "elsif" statements when debugging is used. This
1593 helps a great deal to understand what a filter does.
1594
1595 Document more things not specified clearly in RFC3028. I had all this
1596 sorted out, when out of a sudden new issues came to my mind. Oops."
1597
df199fec
PH
1598PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1599 (Bugzilla #53).
1600
d27f1df3
PH
1601PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1602 canonical form (as documented). However, after a host name lookup from
1603 the IP address, check_host() was doing a simple string comparison with
1604 addresses acquired from the DNS when checking that the found name did
1605 have the original IP as one of its addresses. Since any found IPv6
1606 addresses are likely to be in abbreviated form, the comparison could
1607 fail. Luckily, there already exists a function for doing the comparison
1608 by converting both addresses to binary, so now that is used instead of
1609 the text comparison.
1610
96776534
PH
1611PH/20 There was another similar case to PH/19, when a complete host name was
1612 given in a host list; looking up its IP address could give an abbreviated
1613 form, whereas the current host's name might or might not be abbreviated.
1614 The same fix has been applied.
1615
5de37277 1616
9a799bc0
PH
1617Exim version 4.54
1618-----------------
1619
1620PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1621 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1622 It now does.
1623
99a4b039
PH
1624PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1625 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1626
1627PH/03 Typo: missing ".o" in src/pcre/Makefile.
1628
4b233853
PH
1629PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1630 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1631 Also, for "Auto-Submitted", treat anything other than "no" as
1632 non-personal, in accordance with RFC 3834. (Previously it treated
1633 anything starting "auto-" as non-personal.)
1634
8857ccfd
PH
1635TF/01 The control=submission/name=... option had a problem with syntax
1636 errors if the name included a slash character. The /name= option
1637 now slurps the rest of the string, so it can include any characters
1638 but it must come last in the list of options (after /sender_retain
1639 or /domain=).
1640
433a2980
PH
1641PH/05 Some modifications to the interface to the fake nameserver for the new
1642 testing suite.
1643
3e46c1aa 1644
9a799bc0 1645
e3a311ba
TK
1646Exim version 4.53
1647-----------------
1648
1649TK/01 Added the "success_on_redirect" address verification option. See
1650 NewStuff for rationale and an example.
1651
13b685f9
PH
1652PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1653
395ff96d
PH
1654PH/02 Patch to exigrep to allow it to work on syslog lines.
1655
5b68f6e4
PH
1656PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1657 fread() to skip over the body file's header line, because in Cygwin the
1658 header line is locked and is inaccessible.
1659
1ab52c69
PH
1660PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1661 co-exist for some time) to make it clear that it is the Exim ID that is
1662 referenced, not the Message-ID: header line.
1663
b07e6aa3
PH
1664PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1665 string_format() function, because snprintf() does not exist on all
1666 operating systems.
1667
254e032f
PH
1668PH/06 The use of forbid_filter_existstest now also locks out the use of the
1669 ${stat: expansion item.
1670
3af76a81
PH
1671PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1672 protocol synchronization error", to keep the pedants happy.
1673
2548ba04
PH
1674PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1675 well as for IRIX systems, when gcc is being used. See the host.c source
1676 file for comments.
1677
b6c6011d
PH
1678PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1679
cf39cf57
PH
1680PH/10 Named domain lists were not working if used in a queue_smtp_domains
1681 setting.
1682
f1513293
PH
1683PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1684 transport and to the smtp transport in LMTP mode.
1685
727549a4
PH
1686TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1687
af46795e
PH
1688PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1689 run a filter in a subprocess. This could lead to confusion in subsequent
1690 lookups in the parent process. There should also be a search_tidyup() at
1691 the end of the subprocess.
1692
d7b47fd0
PH
1693PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1694 only if the host matched helo_try_verify_hosts, which caused the
1695 verification to occur when the EHLO/HELO command was issued. The ACL just
1696 tested the remembered result. Now, if a previous verification attempt has
1697 not happened, "verify = helo" does it there and then.
1698
ee744174
JJ
1699JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1700
b582ab87
PH
1701TK/03 Fix log output including CR from clamd.
1702
41a13e0a
PH
1703PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1704 exist provoked a memory error which could cause a segfault.
1705
f625cc5a
PH
1706PH/15 Installed PCRE 6.2
1707
1708PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1709
21f7af35
PH
1710PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1711 of the problem. Specifically, suggested +O2 rather than +O1 for the
1712 HP-UX compiler.
1713
31480e42
PH
1714PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1715
2d280592
PH
1716PH/20 If a delivery was routed to a non-standard port by means of an SRV
1717 record, the port was not correctly logged when the outgoing_port log
1718 selector was set (it logged the transort's default port).
1719
7cd1141b
PH
1720PH/21 Added support for host-specific ports to manualroute, queryprogram,
1721 fallback_hosts, and "hosts" in the smtp transport.
1722
1723PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1724 host errors such as "Connection refused".
1725
750af86e
PH
1726PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1727 authentication with radiusclient 0.4.9:
1728
1729 - Error returned from rc_read_config was caught wrongly
1730 - Username/password not passed on to radius server due to wrong length.
1731
1732 The presumption is that some radiusclient API changes for 4.51/PH/17
1733 were not taken care of correctly. The code is still untested by me (my
1734 Linux distribution still has 0.3.2 of radiusclient), but it was
1735 contributed by a Radius user.
1736
1737PH/24 When doing a callout, the value of $domain wasn't set correctly when
1738 expanding the "port" option of the smtp transport.
1739
4304270b
TK
1740TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1741 while reading a MIME header. Thanks to Tom Hughes for a patch.
1742
750af86e
PH
1743PH/24 Include config.h inside local_scan.h so that configuration settings are
1744 available.
1745
64ffc24f
PH
1746PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1747 that in an ACL for RCPT (for example), you can examine exactly what was
1748 received.
1749
5dd9625b
PH
1750PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1751 commands, but it was not correctly comparing the address with the actual
1752 client host address. Thus, it would show the EHLO address in Received:
1753 header lines when this was not necessary.
1754
5591031b
PH
1755PH/27 Added the % operator to ${eval:}.
1756
ba18e66a
PH
1757PH/28 Exim tries to create and chdir to its spool directory when it starts;
1758 it should be ignoring failures (because with -C, for example, it has lost
1759 privilege). It wasn't ignoring creation failures other than "already
1760 exists".
1761
9cec981f
PH
1762PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1763 -bV or -d is used.
1764
aa2b5c79
PH
1765PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1766 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1767 too many continuations, the temporary file was not being removed, and the
1768 return code was incorrect.
aa2b5c79 1769
48a53b7f
PH
1770PH/31 Missing "BOOL" in function definition in filtertest.c.
1771
1c59d63b
PH
1772PH/32 Applied Sieve patches from the maintainer.
1773
671012da
TK
1774TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1775
1509d3a8
PH
1776PH/33 Added "verify = not_blind".
1777
1778PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1779 Local/Makefile (with some defaults set). These are used in built scripts
1780 such as exicyclog, but they have never been used in the exim_install
1781 script (though there are many overriding facilities there). I have
1782 arranged that the exim_install script now takes note of these two
1783 settings.
1784
1785PH/35 Installed configuration files for Dragonfly.
1786
2fe1a124
PH
1787PH/36 When a locally submitted message by a trusted user did not contain a
1788 From: header, and the sender address was obtained from -f or from an SMTP
1789 MAIL command, and the trusted user did not use -F to supply a sender
1790 name, $originator_name was incorrectly used when constructing a From:
1791 header. Furthermore, $originator_name was used for submission mode
1792 messages from external hosts without From: headers in a similar way,
1793 which is clearly wrong.
1794
8800895a
PH
1795PH/37 Added control=suppress_local_fixups.
1796
ccfdb010
PH
1797PH/38 When log_selector = +received_sender was set, and the addition of the
1798 sender made the log line's construction buffer exactly full, or one byte
1799 less than full, an overflow happened when the terminating "\n" was
1800 subsequently added.
1801
1130bfb0
PH
1802PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1803 when the result of a list match is failure because a DNS lookup failed.
1804
ebcb507f
PH
1805PH/40 RM_COMMAND is now used in the building process.
1806
c35e155c
PH
1807PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1808 the "build-* directories that it finds.
1809
95d1f782
PH
1810PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1811 address in a domain literal was a prefix of an interface address.
1812
fd6de02e
PH
1813PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1814 when verifying a sender address, unless rewrite_headers is false.
1815
58de37c5
PH
1816PH/44 Wrote a long comment about why errors_to addresses are verified as
1817 recipients, not senders.
1818
261cf466
TF
1819TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1820 the ratelimit ACL was added.
1821
3ee512ff
PH
1822PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1823
e08c430f
PH
1824PH/46 Added extra information about PostgreSQL errors to the error string.
1825
bef5a11f
PH
1826PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1827 avoiding the need to install special zones in a real server. This is
1828 backwards compatible; if it can't find the fake resolver, it drops back.
1829 Thus, both old and new test suites can be run.
1830
7546de58
TF
1831TF/02 Added util/ratelimit.pl
1832
e5d5a95f
TF
1833TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1834 clock is set back in time.
1835
2e88a017
TF
1836TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1837 Candler <B.Candler@pobox.com>.
1838
a5f65aa4
TF
1839TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1840 OK for addresses that are the result of redirections.
1841
e7726cbf
PH
1842PH/48 A number of further additions for the benefit of the new test suite,
1843 including a fake gethostbyname() that interfaces to the fake DNS resolver
1844 (see PH/47 above).
1845
a7fdad5b
TF
1846TF/06 The fix for widen_domains has also been applied to qualify_single and
1847 search_parents which are the other dnslookup options that can cause
1848 header rewrites.
1849
6af56900
PH
1850PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1851 type ("H").
1852
0925ede6
PH
1853PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1854
66afa403
TF
1855TF/07 Exim produced the error message "an SRV record indicated no SMTP
1856 service" if it encountered an MX record with an empty target hostname.
1857 The message is now "an MX or SRV record indicated no SMTP service".
1858
0154e85a
TF
1859TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1860 if the DNS of the sending site is misconfigured. This is quite a
1861 common situation. This change restores the behaviour of treating a
1862 helo verification defer as a failure.
1863
16f12c76
PH
1864PH/51 If self=fail was set on a router, the bounce message did not include the
1865 actual error message.
1866
bbe902f0 1867
e5a9dba6
PH
1868Exim version 4.52
1869-----------------
1870
1871TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1872
22c3b60b
PH
1873PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1874 command itself ended in error, the underlying message about the transport
1875 filter timeout was being overwritten with the pipe command error. Now the
1876 underlying error message should be appended to the second error message.
1877
06a9b4b5
PH
1878TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1879
c1ac6996
PH
1880PH/02 Reduce the amount of output that "make" produces by default. Full output
1881 can still be requested.
1882
9c7a242c
PH
1883PH/03 The warning log line about a condition test deferring for a "warn" verb
1884 was being output only once per connection, rather than after each
1885 occurrence (because it was using the same function as for successful
1886 "warn" verbs). This seems wrong, so I have changed it.
1887
87ba3f5f
PH
1888TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1889 it should not have, which might have caused a crash in the right
1890 circumstances, but probably never did.
1891
1892PH/04 Installed a modified version of Tony Finch's patch to make submission
1893 mode fix the return path as well as the Sender: header line, and to
1894 add a /name= option so that you can make the user's friendly name appear
1895 in the header line.
1896
29aba418
TF
1897TF/03 Added the control = fakedefer ACL modifier.
1898
fe0dab11
TF
1899TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1900 Mark Lowes for thorough testing.
870f6ba8 1901
11d337a4
TK
1902TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1903
1904TK/03 Merged latest SRS patch from Miles Wilton.
1905
415c8f3b
PH
1906PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1907 with the definition in sysexits.h (which is #included earlier).
1908 Fortunately, Exim does not actually use EX_OK. The code used to try to
1909 preserve the sysexits.h value, by assumimg that macro definitions were
1910 scanned for macro replacements. I have been disabused of this notion,
1911 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1912
958541e9
PH
1913PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1914 in the smtp transport. When a block could not be written in a single
1915 write() function, the timeout was being re-applied to each part-write.
1916 This seems wrong - if the receiver was accepting one byte at a time it
1917 would take for ever. The timeout is now adjusted when this happens. It
1918 doesn't have to be particularly precise.
1919
c206415f
TK
1920TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1921 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1922
2a4be8f9
PH
1923PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1924 without a domain if the check to <postmaster@domain> fails.
1925
1cba11c5
SC
1926SC/01 Eximstats: added -xls and the ability to specify output files
1927 (patch written by Frank Heydlauf).
1928
1929SC/02 Eximstats: use FileHandles for outputing results.
1930
1931SC/03 Eximstats: allow any combination of xls, txt, and html output.
1932
1933SC/04 Eximstats: fixed display of large numbers with -nvr option
1934
1935SC/05 Eximstats: fixed merging of reports with empty tables.
1936
1937SC/06 Eximstats: added the -include_original_destination flag
1938
1939SC/07 Eximstats: removed tabs and trailing whitespace.
1940
1005d00e
TK
1941TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1942
1943TK/06 MBOX spool code: Add real "From " MBOX separator line
1944 so the .eml file is really in mbox format (even though
1945 most programs do not really care). Patch from Alex Miller.
1946
1947TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1948 The latter is generated from $received_to and is only set if the
1949 message has one envelope recipient. SA can use these headers,
1950 obviously out-of-the-box. Patch from Alex Miller.
1951
9b4768fa
PH
1952PH/08 The ${def test on a variable was returning false if the variable's
1953 value was "0", contrary to what the specification has always said!
1954 The result should be true unless the variable is empty.
1955
1956PH/09 The syntax error of a character other than { following "${if
1957 def:variable_name" (after optional whitespace) was not being diagnosed.
1958 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1959 accidental colon was present, for example, could give incorrect results.
1960
0d7eb84a
PH
1961PH/10 Tidied the code in a number of places where the st_size field of a stat()
1962 result is used (not including appendfile, where other changes are about
1963 to be made).
1964
1965PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1966 This involved changing a lot of size variables from int to off_t. It
1967 should work with maildirs and everything.
1968
40727bee
TK
1969TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1970 spamd dying while we are connected to it.
1971
554d2369
TF
1972TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1973 <jgh@wizmail.org>
1974
1f922db1
PH
1975PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1976 function for BDB 4.3.
1977
ef213c3b
PH
1978PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1979
8ac170f3
PH
1980PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1981 the sources for PCRE have been re-arranged and more files are now
1982 involved.
1983
b1c749bb
PH
1984PH/15 The code I had for printing potentially long long variables in PH/11
1985 above was not the best (it lost precision). The length of off_t variables
1986 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1987 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1988 to be "long long int" or "long int". This is needed for the internal
1989 formatting function string_vformat().
b1c749bb 1990
4aac9b49
PH
1991PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1992 the configuration file to be ":syslog", then the script "guesses" where
1993 the logs files are, rather than using the compiled in default. In our
1994 case the guess is not the same as the compiled default, so the script
1995 suddenly stopped working when I started to use syslog. The patch checks
1996 to see if log_file_path is "". If so, it attempts to read it from exim
1997 with no configuration file to get the compiled in version, before it
1998 falls back to the previous guessing code."
1999
294520c8
TK
2000TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2001 implementing BATV in an Exim configuration. See NewStuff for the gory
2002 details.
2003
5bd022fe
PH
2004PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2005 Makefile that are specific to HP-UX.
2006
90e9ce59
PH
2007PH/18 If the "use_postmaster" option was set for a recipient callout together
2008 with the "random" option, the postmaster address was used as the MAIL
2009 FROM address for the random test, but not for the subsequent recipient
2010 test. It is now used for both.
2011
5ea81592
PH
2012PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2013 patch removes a few documentation additions to RFC 3028, because the
2014 latest draft now contains them. It adds the new en;ascii-case comparator
2015 and a new error check for 8bit text in MIME parts. Comparator and
2016 require names are now matched exactly. I enabled the subaddress
2017 extension, but it is not well tested yet (read: it works for me)."
2018
c6c2dc1d
PH
2019PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2020 rework some of the code of TK/09 above to avoid the hardwired use of
2021 "%lld" and "long long". Replaced the call to snprintf() with a call to
2022 string_vformat().
2023
fffffe4c
PH
2024PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2025 records point to non-existent hosts", "retry timeout exceeded", and
2026 "retry time not reached for any host after a long failure period".
ca02eafb 2027
9a26b6b2
PH
2028PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2029 experimental DomainKeys support:
2030
2031 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2032 (2) On an error such as an illegally used "control", the wrong name for
2033 the control was given.
2034
2035 These problems did NOT occur unless DomainKeys support was compiled.
2036
4aee0225
PH
2037PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2038
32d668a5
PH
2039PH/24 Added ${if match_ip condition.
2040
8187c3f3
PH
2041PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2042 databases so that it will be absolutely obvious if a crash occurs in the
2043 DB library. This is a regular occurrence (often caused by mis-matched
2044 db.h files).
2045
ff790e47 2046PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2047 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2048 picked up on a user's system that detects such things. There doesn't seem
2049 to be a gcc warning option for this - only an attribute that has to be
2050 put on the function's prototype. It seems that in Fedora Core 4 they have
2051 set this on a number of new functions. No doubt there will be more in due
2052 course.
ff790e47 2053
5417f6d1
PH
2054PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2055 specify a transport. However, if an address that was verified by such a
2056 router was the subject of a callout, Exim crashed because it tried to
2057 read the rcpt_include_affixes from the non-existent transport. Now it
2058 just assumes that the setting of that option is false. This bug was
2059 introduced by 4.51/PH/31.
2060
59cf8544
PH
2061PH/28 Changed -d+all to exclude +memory, because that information is very
2062 rarely of interest, but it makes the output a lot bigger. People tend to
2063 do -d+all out of habit.
2064
e7ad8a65
PH
2065PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2066 code in os-type was giving problems when libc.so lives in lib64, like on
2067 x86_64 Fedora Core.
2068
ade42478
PH
2069PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2070 aren't the modern standard, and it seems that some systems' include files
2071 don't always have them. Exim was already checking for some of the newer
2072 ones like T_AAAA, and defining it itself. I've added checks for all the
2073 record types that Exim uses.
2074
182ad5cf
PH
2075PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2076 not automatically generating a new one, as it is supposed to. This
2077 prevented TLS from working. If the file did exist, but contained invalid
2078 data, a new version was generated, as expected. It was only the case of a
2079 non-existent file that was broken.
2080
b0d9fc80
TK
2081TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2082 with a change in libdomainkeys > 0.64.
2083
2084TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2085 from DNS. If the selector record carries the flag, it now has
2086 precedence over the domain-wide flag.
2087
2088TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2089
47c7a64a
PH
2090PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2091 the use of a port name that isn't defined in /etc/services) occurred, the
2092 message was deferred as in a normal delivery, and thus remained on the
2093 spool, instead of being failed because of the mua_wrapper setting. This
2094 is now fixed, and I tidied up some of the mua_wrapper messages at the
2095 same time.
2096
a388bce4
SC
2097SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2098 the messages in a hash of arrays rather than using individual hashes.
2099 This is a bit cleaner and results in dramatic memory savings, albeit
2100 at a slight CPU cost.
2101
2102SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2103 as requested by Marc Sherman.
2104
2105SC/10 Eximstats: added histograms for user specified patterns as requested
2106 by Marc Sherman.
2107
0793e4ed
SC
2108SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2109
c58b88df
PH
2110PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2111 fopen() in the content-scanning modules that did not already have it.
2112
e7ad8a65 2113
7982096b
PH
2114Exim version 4.51
2115-----------------
2116
1a46a8c5
PH
2117TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2118 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2119
2f079f46 2120TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2121
2122TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2123
2124PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2125 to test Sieve filters that use "vacation".
2126
2127PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2128 that changes the way the GnuTLS parameters are stored in the cache file.
2129 The new format can be generated externally. For backward compatibility,
2130 if the data in the cache doesn't make sense, Exim assumes it has read an
2131 old-format file, and it generates new data and writes a new file. This
2132 means that you can't go back to an older release without removing the
2133 file.
2134
2135PH/03 A redirect router that has both "unseen" and "one_time" set does not
2136 work if there are any delivery delays because "one_time" forces the
2137 parent to be marked "delivered", so its unseen clone is never tried
2138 again. For this reason, Exim now forbids the simultaneous setting of
2139 these two options.
2140
2141PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2142 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2143 entry if you want to know the details. The fix, however, neglected to
2144 consider the case when local delivery batching is involved. The test for
2145 "previously delivered" was not happening when checking to see if an
2146 address could be batched with a previous (undelivered) one; under
2147 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2148 address.
1a46a8c5
PH
2149
2150PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2151 in its include files, and this causes problems building Exim.
2152
2153PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2154 header_syntax) but Exim was just ignoring anything given after a slash.
2155 In particular, this caused confusion with an attempt to use "verify =
2156 reverse_host_lookup/defer_ok". An error is now given when options are
2157 supplied for verify items that do not have them. (Maybe reverse_host_
2158 lookup should have a defer_ok option, but that's a different point.)
2159
2160PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2161 defined by RFC 821) to 2048, because there were problems with some AUTH
2162 commands, and RFC 1869 says the size should be increased for extended
2163 SMTP commands that take arguments.
2164
2165PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2166 Finch).
2167
2168PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2169 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2170
49c2d5ea
PH
2171PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2172 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2173 whatever). Otherwise the password may appear in the log. Following change
2174 PH/42 below, there is no longer a chance of it appearing in a bounce
2175 message.
49c2d5ea 2176
bf759a8b
PH
2177PH/11 Installed exipick version 20050225.0 from John Jetmore.
2178
83364d30
PH
2179PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2180 of its addresses was ever tried. (Bugzilla bug #2.)
2181
7999bbd7
PH
2182PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2183 the result incorrectly in the debug output. (It correctly added a newline
2184 to what was transported.)
2185
7dbf77c9
PH
2186TF/01 Added $received_time.
2187
74e0617f
PH
2188PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2189 commented out examples of how to interface to a virus scanner and to
2190 SpamAssassin. Also added commented examples of av_scanner and
2191 spamd_address settings.
2192
2f079f46
PH
2193PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2194 and controls are allowed in which ACLs. There were a couple of minor
2195 errors. Some of the entries in the conditions table (which is a table of
2196 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2197 negation of where the condition IS allowed.
2198
8c841523
PH
2199PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2200
7766a4f0
PH
2201PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2202 header file does not have a version number, so I've had to invent a new
2203 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2204 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2205 radiusclient), but it was contributed by a Radius user.
2206
8b417f2c
PH
2207PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2208 files or directories, for OpenSSL.
2209
901f42cb
PH
2210PH/19 When an Exim process that is running as root has to create an Exim log
2211 file, it does so in a subprocess that runs as exim:exim so as to get the
2212 ownership right at creation (otherwise, other Exim processes might see
2213 the file with the wrong ownership). There was no test for failure of this
2214 fork() call, which would lead to the process getting stuck as it waited
2215 for a non-existent subprocess. Forks do occasionally fail when resources
2216 run out. I reviewed all the other calls to fork(); they all seem to check
2217 for failure.
2218
f9b9210e
PH
2219PH/20 When checking for unexpected SMTP input at connect time (before writing
2220 the banner), Exim was not dealing correctly with a non-positive return
2221 from the read() function. If the client had disconnected by this time,
2222 the result was a log entry for a synchronization error with an empty
2223 string after "input=" when read() returned zero. If read() returned -1
2224 (an event I could not check), uninitialized data bytes were printed.
2225 There were reports of junk text (parts of files, etc) appearing after
2226 "input=".
2227
54cdb463
PH
2228PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2229
cf00dad6
PH
2230PH/22 Added support for macro redefinition, and (re)definition in between
2231 driver and ACL definitions.
2232
acb1b346
PH
2233PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2234 forgetting to use the resulting value; it was using the unexpanded value.
2235
c5ddb310
PH
2236PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2237 hadn't been configured. The fix is from Juergen Kreileder, who
2238 understands it better than I do:
2239
2240 "Here's what I see happening with three configured cyrus_sasl
2241 authenticators configured (plain, login, cram-md5):
2242
2243 On startup auth_cyrus_sasl_init() gets called for each of these.
2244 This means three calls to sasl_listmech() without a specified mech_list.
2245 => SASL tests which mechs of all available mechs actually work
2246 => three warnings about OTP not working
2247 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2248
2249 With the patch, sasl_listmech() also gets called three times. But now
2250 SASL's mech_list option is set to the server_mech specified in the the
2251 authenticator. Or in other words, the answer from sasl_listmech()
2252 gets limited to just the mech you're testing for (which is different
2253 for each call.)
2254 => the return list contains just 'plain' or 'login', 'cram-md5' or
2255 nothing depending on the value of ob->server_mech.
2256
2257 I've just tested the patch: Authentication still works fine,
2258 unavailable mechs specified in the exim configuration are still
2259 caught, and the auth.log warnings about OTP are gone."
2260
31619da6
PH
2261PH/25 When debugging is enabled, the contents of the command line are added
2262 to the debugging output, even when log_selector=+arguments is not
2263 specified.
2264
bebaf0fc
PH
2265PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2266 answer is "GNU", and only if the return is "GNU/something" is the answer
2267 "Linux".
2268
475fe28a
PH
2269PH/27 $acl_verify_message is now set immediately after the failure of a
2270 verification in an ACL, and so is available in subsequent modifiers. In
2271 particular, the message can be preserved by coding like this:
2272
2273 warn !verify = sender
2274 set acl_m0 = $acl_verify_message
2275
2276 Previously, $acl_verify_message was set only while expanding "message"
2277 and "log_message" when a very denied access.
2278
7e8bec7a
PH
2279PH/28 Modified OS/os.c-Linux with
2280
2281 -#ifndef OS_LOAD_AVERAGE
2282 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2283
2284 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2285 nomenclature these days.)
2286
e4a89c47
PH
2287PH/29 Installed patch from the Sieve maintainer that adds the options
2288 sieve_useraddress and sieve_subaddress to the redirect router.
2289
5ca2a9a1
PH
2290PH/30 In these circumstances:
2291 . Two addresses routed to the same list of hosts;
2292 . First host does not offer TLS;
2293 . First host accepts first address;
2294 . First host gives temporary error to second address;
2295 . Second host offers TLS and a TLS session is established;
2296 . Second host accepts second address.
2297 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2298 and peerdn, if requested) that were in fact used only for the second
2299 address.
7e8bec7a 2300
c688b954
PH
2301PH/31 When doing a callout as part of verifying an address, Exim was not paying
2302 attention to any local part prefix or suffix that was matched by the
2303 router that accepted the address. It now behaves in the same way as it
2304 does for delivery: the affixes are removed from the local part unless
2305 rcpt_include_affixes is set on the transport.
2306
fed77020
PH
2307PH/32 Add the sender address, as F=<...>, to the log line when logging a
2308 timeout during the DATA phase of an incoming message.
2309
7fe1560f
PH
2310PH/33 Sieve envelope tests were broken for match types other than :is. I have
2311 applied a patch sanctioned by the Sieve maintainer.
c688b954 2312
ebb6e6d5
PH
2313PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2314 the uid or gid is negative. A case of a negative gid caused this to be
2315 noticed. The fix allows for either to be negative.
2316
9c4e8f60
PH
2317PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2318 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2319 overlooked.
2320
2321PH/36 The change PH/12 above was broken. Fixed it.
2322
d7174846
PH
2323PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2324 the grounds that routing the same address twice would always produce the
2325 same answer. This might have been true once, but it is certainly no
2326 longer true now. Routing a child address may depend on the previous
2327 routing that produced that child. Some complicated redirection strategies
2328 went wrong when messages had multiple recipients, and made Exim's
2329 behaviour dependent on the order in which the addresses were given.
2330
2331 I have moved the duplicate checking until after the routing is complete.
2332 Exim scans the addresses that are assigned to local and remote
2333 transports, and removes any duplicates. This means that more work will be
2334 done, as duplicates will always all be routed, but duplicates are
2335 presumably rare, so I don't expect this is of any significance.
2336
2337 For deliveries to pipes, files, and autoreplies, the duplicate checking
2338 still happens during the routing process, since they are not going to be
2339 routed further.
2340
cfe75fc3
PH
2341PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2342 It corrects a timeout issue with spamd. This is Ian's comment: "The
2343 background is that sometimes spamd either never reads data from a
2344 connection it has accepted, or it never writes response data. The exiscan
2345 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2346 blindly assumes that writes won't block so it may never time out."
2347
be22d70e
PH
2348PH/39 Allow G after quota size as well as K and M.
2349
0612b098
PH
2350PH/40 The value set for $authenticated_id in an authenticator may not contain
2351 binary zeroes or newlines because the value is written to log lines and
2352 to spool files. There was no check on this. Now the value is run through
2353 the string_printing() function so that such characters are converted to
2354 printable escape sequences.
2355
2e0c1448
PH
2356PH/41 $message_linecount is a new variable that contains the total number of
2357 lines in the message. Compare $body_linecount, which is the count for the
2358 body only.
2359
447d236c
PH
2360PH/42 Exim no longer gives details of delivery errors for specific addresses in
2361 bounce and delay warning messages, except in certain special cases, which
2362 are as follows:
2363
2364 (a) An SMTP error message from a remote host;
2365 (b) A message specified in a :fail: redirection;
2366 (c) A message specified in a "fail" command in a system filter;
2367 (d) A message specified in a FAIL return from the queryprogram router;
2368 (e) A message specified by the cannot_route_message router option.
2369
2370 In these cases only, Exim does include the error details in bounce and
2371 warning messages. There are also a few cases where bland messages such
2372 as "unrouteable address" or "local delivery error" are given.
2373
d20976dc
PH
2374PH/43 $value is now also set for the "else" part of a ${run expansion.
2375
f656d135
PH
2376PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2377 being worked on, but at least Exim now implements the latest version to
2378 play with."
2379
2e2a30b4
PH
2380PH/45 In a pipe transport, although a timeout while waiting for the pipe
2381 process to complete was treated as a delivery failure, a timeout while
2382 writing the message to the pipe was logged, but erroneously treated as a
2383 successful delivery. Such timeouts include transport filter timeouts. For
2384 consistency with the overall process timeout, these timeouts are now
2385 treated as errors, giving rise to delivery failures by default. However,
2386 there is now a new Boolean option for the pipe transport called
2387 timeout_defer, which, if set TRUE, converts the failures into defers for
2388 both kinds of timeout. A transport filter timeout is now identified in
2389 the log output.
2390
9176e9f0
PH
2391PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2392 systems where "make" and "gmake" are different, calling "gmake" at top
2393 level broke things. I've arranged for the value of $(MAKE) to be passed
2394 from the Makefile to this script so that it can call the same version of
2395 "make".
2396
7982096b 2397
bbe902f0
PH
2398A note about Exim versions 4.44 and 4.50
2399----------------------------------------
2400
2401Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2402changes of various kinds. As a consequence, a big documentation update was
2403needed. This delayed the release for rather longer than seemed good, especially
2404in the light of a couple of (minor) security issues. Therefore, the changes
2405that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2406release. So 4.44 and 4.50 are in effect two different branches that both start
2407from 4.43.
2408
2409I have left the 4.50 change log unchanged; it contains all the changes since
24104.43. The change log for 4.44 is below; many of its items are identical to
2411those for 4.50. This seems to be the most sensible way to preserve the
2412historical information.
2413
2414
f7b63901 2415Exim version 4.50
495ae4b0
PH
2416-----------------
2417
5fe762f6
PH
2418 1. Minor wording change to the doc/README.SIEVE file.
2419
139059f6 2420 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2421 computation of the current number of files was incorrect.
495ae4b0 2422
7086e875
PH
2423 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2424 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2425 place.
2426
35af9f61
PH
2427 4. Give more explanation in the error message when the command for a transport
2428 filter fails to execute.
2429
b668c215
PH
2430 5. There are several places where Exim runs a non-Exim command in a
2431 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2432 was being done only for the command run by the queryprogram router. It is
2433 now done for all such subprocesses. The other cases are: ${run, transport
2434 filters, and the commands run by the lmtp and pipe transports.
2435
a494b1e1
PH
2436 6. Added CONFIGURE_GROUP build-time option.
2437
2438 7. Some older OS have a limit of 256 on the maximum number of file
2439 descriptors. Exim was using setrlimit() to set 1000 as a large value
2440 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2441 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2442
c5fcb476
PH
2443 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2444 was an oversight, and furthermore, ever since the addition of extra
2445 controls (e.g. 4.43/32), the checks on when to allow different forms of
2446 "control" were broken. There should now be diagnostics for all cases when a
2447 control that does not make sense is encountered.
2448
69358f02
PH
2449 9. Added the /retain_sender option to "control=submission".
2450
5be20824
PH
245110. $recipients is now available in the predata ACL (oversight).
2452
eb2c0248
PH
245311. Tidy the search cache before the fork to do a delivery from a message
2454 received from the command line. Otherwise the child will trigger a lookup
2455 failure and thereby defer the delivery if it tries to use (for example) a
2456 cached ldap connection that the parent has called unbind on.
2457
2a3eea10
PH
245812. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2459 of $address_data from the recipient verification was clobbered by the
2460 sender verification.
2461
246213. The value of address_data from a sender verification is now available in
2463 $sender_address_data in subsequent conditions in the ACL statement.
2464
23c7ff99
PH
246514. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2466
4deaf07d
PH
246715. Added a new option "connect=<time>" to callout options, to set a different
2468 connection timeout.
2469
926e1192
PH
247016. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2471 was its contents. (It was OK if the option was not defined at all.)
2472
650edc6f
PH
247317. A "Completed" log line is now written for messages that are removed from
2474 the spool by the -Mrm option.
2475
2c7db3f5
PH
247618. New variables $sender_verify_failure and $recipient_verify_failure contain
2477 information about exactly what failed.
2478
3d235903
PH
247919. Added -dd to debug only the daemon process.
2480
7c7ad977
PH
248120. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2482 handles timeouts, both on the server side and network timeouts. Renamed the
2483 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2484
981756db
PH
248521. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2486 It is now set to "smtps".
2487
d4eb88df
PH
248822. $host_address is now set to the target address during the checking of
2489 ignore_target_hosts.
2490
249123. When checking ignore_target_hosts for an ipliteral router, no host name was
2492 being passed; this would have caused $sender_host_name to have been used if
2493 matching the list had actually called for a host name (not very likely,
2494 since this list is usually IP addresses). A host name is now passed as
2495 "[x.x.x.x]".
2496
7d468ab8
PH
249724. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2498 code that specifies a non-restarting handler (typically sigaction() in
2499 modern systems) in an attempt to fix a rare and obscure crash bug.
2500
250125. Narrowed the window for a race in the daemon that could cause it to ignore
2502 SIGCHLD signals. This is not a major problem, because they are used only to
2503 wake it up if nothing else does.
2504
62c0818f
PH
250526. A malformed maildirsize file could cause Exim to calculate negative values
2506 for the mailbox size or file count. Odd effects could occur as a result.
2507 The maildirsize information is now recalculated if the size or filecount
2508 end up negative.
2509
26034054
PH
251027. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2511 support for a long time. Removed HAVE_SYS_VFS_H.
2512
af66f652
PH
251328. Installed the latest version of exipick from John Jetmore.
2514
90af77f4
PH
251529. In an address list, if the pattern was not a regular expression, an empty
2516 subject address (from a bounce message) matched only if the pattern was an
2517 empty string. Non-empty patterns were not even tested. This was the wrong
2518 because it is perfectly reasonable to use an empty address as part of a
2519 database query. An empty address is now tested by patterns that are
2520 lookups. However, all the other forms of pattern expect the subject to
2521 contain a local part and a domain, and therefore, for them, an empty
2522 address still always fails if the pattern is not itself empty.
2523
d8ef3577
PH
252430. Exim went into a mad DNS loop when attempting to do a callout where the
2525 host was specified on an smtp transport, and looking it up yielded more
2526 than one IP address.
2527
5cb8cbc6
PH
252831. Re-factored the code for checking spool and log partition space into a
2529 function that finds that data and another that does the check. The former
2530 is then used to implement four new variables: $spool_space, $log_space,
2531 $spool_inodes, and $log_inodes.
2532
14702f5b
PH
253332. The RFC2047 encoding function was originally intended for short strings
2534 such as real names; it was not keeping to the 75-character limit for
2535 encoded words that the RFC imposes. It now respects the limit, and
2536 generates multiple encoded words if necessary. To be on the safe side, I
2537 have increased the buffer size for the ${rfc2047: expansion operator from
2538 1024 to 2048 bytes.
2539
063b1e99
PH
254033. It is now permitted to omit both strings after an "if" condition; if the
2541 condition is true, the result is "true". As before, when the second string
2542 is omitted, a false condition yields an empty string. This makes it less
2543 cumbersome to write custom ACL and router conditions.
2544
652e1b65
PH
254534. Failure to deliver a bounce message always caused it to be frozen, even if
2546 there was an errors_to setting on the router. The errors_to setting is now
2547 respected.
2548
6f0c9a4f
PH
254935. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2550 canonical form (fully expanded) before being placed in
2551 $sender_host_address.
2552
33397d19
PH
255336. The table in the code that translates DNS record types into text (T_A to
2554 "A" for instance) was missing entries for NS and CNAME. It is just possible
2555 that this could have caused confusion if both these types were looked up
2556 for the same domain, because the text type is used as part of Exim's
2557 per-process caching. But the chance of anyone hitting this buglet seems
2558 very small.
2559
7bb56e1f
PH
256037. The dnsdb lookup has been extended in a number of ways.
2561
2562 (1) There is a new type, "zns", which walks up the domain tree until it
2563 finds some nameserver records. It should be used with care.
2564
ea3bc19b
PH
2565 (2) There is a new type, "mxh", which is like "mx" except that it returns
2566 just the host names, not the priorities.
2567
2568 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2569 looked up. The behaviour when one of the lookups defers can be
2570 controlled by a keyword.
7bb56e1f 2571
ea3bc19b 2572 (4) It is now possible to specify the separator character for use when
7bb56e1f 2573 multiple records are returned.
33397d19 2574
0bcb2a0e
PH
257538. The dnslists ACL condition has been extended: it is now possible to supply
2576 a list of IP addresses and/or domains to be looked up in a particular DNS
2577 domain.
2578
2ac0e484
PH
257939. Added log_selector=+queue_time_overall.
2580
4e1fde53
PH
258140. When running the queue in the test harness, wait just a tad after forking a
2582 delivery process, to get repeatability of debugging output.
2583
de365ded
PH
258441. Include certificate and key file names in error message when GnuTLS fails
2585 to set them up, because the GnuTLS error message doesn't include the name
2586 of the failing file when there is a problem reading it.
2587
f05da2e8
PH
258842. Allow both -bf and -bF in the same test run.
2589
d6453af2
PH
259043. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2591
f7b63901
PH
259244. The "Exiscan patch" is now merged into the mainline Exim source.
2593
259445. Sometimes the final signoff response after QUIT could fail to get
2595 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2596 < 0 before doing a fflush(). This bug looks as though it goes back to the
2597 introduction of TLS in release 3.20, but "sometimes" must have been rare
2598 because the tests only now provoked it.
2599
a444213a
PH
260046. Reset the locale to "C" after calling embedded Perl, in case it was changed
2601 (this can affect the format of dates).
2602
0ec020ea
PH
260347. exim_tidydb, when checking for the continued existence of a message for
2604 which it has found a message-specific retry record, was not finding
2605 messages that were in split spool directories. Consequently, it was
2606 deleting retry records that should have stayed in existence.
2607
b1206957
PH
260848. Steve fixed some bugs in eximstats.
2609
261049. The SPA authentication driver was not abandoning authentication and moving
2611 on to the next authenticator when an expansion was forced to fail,
2612 contradicting the general specification for all authenticators. Instead it
2613 was generating a temporary error. It now behaves as specified.
2614
26dd5a95
PH
261550. The default ordering of permitted cipher suites for GnuTLS was pessimal
2616 (the order specifies the preference for clients). The order is now AES256,
2617 AES128, 3DES, ARCFOUR128.
2618
343b2385
PH
261951. Small patch to Sieve code - explicitly set From: when generating an
2620 autoreply.
2621
1c5466b9
PH
262252. Exim crashed if a remote delivery caused a very long error message to be
2623 recorded - for instance if somebody sent an entire SpamAssassin report back
2624 as a large number of 550 error lines. This bug was coincidentally fixed by
2625 increasing the size of one of Exim's internal buffers (big_buffer) that
2626 happened as part of the Exiscan merge. However, to be on the safe side, I
2627 have made the code more robust (and fixed the comments that describe what
2628 is going on).
2629
55ee9ee3
PH
263053. Now that there can be additional text after "Completed" in log lines (if
2631 the queue_time_overall log selector is set), a one-byte patch to exigrep
2632 was needed to allow it to recognize "Completed" as not the last thing in
2633 the line.
2634
d38f8232
PH
263554. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2636 patch that reportedly fixes this has been added. I am not expert enough to
2637 create a test for it. This is what the patch creator wrote:
2638
2639 "I found a little strange behaviour of ldap code when working with
2640 Windows 2003 AD Domain, where users was placed in more than one
2641 Organization Units. When I tried to give exim partial DN, the exit code
2642 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2643 But simultaneously result of request was absolutely normal ldap result,
2644 so I produce this patch..."
2645
3295e65b
PH
2646 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2647 REFERENCE, so I have modified the code to exclude the patch when that macro
2648 is not defined.
2649
7102e136
PH
265055. Some experimental protocols are using DNS PTR records for new purposes. The
2651 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2652 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2653 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2654 CAN-2005-0021
7102e136 2655
3ca0ba97
PH
265656. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2657
c2bcbe20
PH
265857. Double the size of the debug message buffer (to 2048) so that more of very
2659 long debug lines gets shown.
2660
18ce445d
PH
266158. The exicyclog utility now does better if the number of log files to keep
2662 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2663
1f5b4c3d
PH
266459. Two changes related to the smtp_active_hostname option:
2665
2666 (1) $smtp_active_hostname is now available as a variable.
2667 (2) The default for smtp_banner uses $smtp_active_hostname instead
2668 of $primary_hostname.
2669
b975ba52
PH
267060. The host_aton() function is supposed to be passed a string that is known
2671 to be a valid IP address. However, in the case of IPv6 addresses, it was
2672 not checking this. This is a hostage to fortune. Exim now panics and dies
2673 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2674 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2675 components; fortuitously, this particular loophole had already been fixed
2676 by change 4.50/55 above.
2677
2678 If there are any other similar loopholes, the new check in host_aton()
2679 itself should stop them being exploited. The report I received stated that
2680 data on the command line could provoke the exploit when Exim was running as
2681 exim, but did not say which command line option was involved. All I could
2682 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2683 running as the user.
ea3a6f44 2684 CAN-2005-0021
85b87bc2
PH
2685
268661. There was a buffer overflow vulnerability in the SPA authentication code
2687 (which came originally from the Samba project). I have added a test to the
2688 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2689 CAN-2005-0022
b975ba52 2690
17ffcae7
PH
269162. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2692 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2693
d95f9fdb
PH
269463. The daemon start-up calls getloadavg() while still root for those OS that
2695 need the first call to be done as root, but it missed one case: when
2696 deliver_queue_load_max is set with deliver_drop_privilege. This is
2697 necessary for the benefit of the queue runner, because there is no re-exec
2698 when deliver_drop_privilege is set.
2699
86b8287f
PH
270064. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2701 This has been fixed.
2702
60dc5e56
PH
270365. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2704 was in use, was not putting the data itself into the right store pool;
2705 consequently, it could be overwritten for a subsequent message in the same
2706 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2707 the caching.)
2708
533244af
PH
270966. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2710
a5a28604
PH
271167. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2712 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2713 the function were treating the return as a boolean value, which happened to
2714 work because 0=false and not-0=true, but is not correct code.
2715
7e634d24
PH
271668. The host_aton() function was not handling scoped IPv6 addresses (those
2717 with, for example, "%eth0" on the end) correctly.
2718
3e11c26b
PH
271969. Fixed some compiler warnings in acl.c for the bitmaps specified with
2720 negated items (that is, ~something) in unsigned ints. Some compilers
2721 apparently mutter when there is no cast.
2722
6729cf78
PH
272370. If an address verification called from an ACL failed, and did not produce a
2724 user-specific message (i.e. there was only a "system" message), nothing was
2725 put in $acl_verify_message. In this situation, it now puts the system
2726 message there.
2727
00f00ca5
PH
272871. Change 4.23/11 added synchronization checking at the start of an SMTP
2729 session; change 4.31/43 added the unwanted input to the log line - except
2730 that it did not do this in the start of session case. It now does.
2731
c9bdd01c
PH
273272. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2733 This is wrong and can cause the other end to generate a synchronization
2734 error if it is another Exim or anything else that does the synchronization
2735 check. A QUIT command is no longer sent after a timeout.
2736
d43194df
PH
273773. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2738 during host lookups.
2739
fe5b5d0b
PH
274074. The defer_ok option of callout verification was not working if it was used
2741 when verifying addresses in header lines, that is, for this case:
2742
2743 verify = header_sender/callout=defer_ok
2744
76a2d7ba
PH
274575. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2746 those file descriptors could be used for SMTP connections. If anything
2747 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2748 could be sent to the SMTP client, causing chaos. The daemon now opens
2749 stdin, stdout, and stderr to /dev/null when it puts itself into the
2750 background.
2751
275276. Arrange for output from Perl's "warn" command to be written to Exim's main
2753 log by default. The user can override this with suitable Perl magic.
2754
04f7d5b9
PH
275577. The use of log_message on a "discard" ACL verb, which is supposed to add to
2756 the log message when discard triggers, was not working for the DATA ACL or
2757 for the non-SMTP ACL.
2758
bc60667e
PH
275978. Error message wording change in sieve.c.
2760
bb6e88ff
PH
276179. If smtp_accept_max_per_host was set, the number of connections could be
2762 restricted to fewer than expected, because the daemon was trying to set up
2763 a new connection before checking whether the processes handling previous
2764 connections had finished. The check for completed processes is now done
2765 earlier. On busy systems, this bug wouldn't be noticed because something
2766 else would have woken the daemon, and it would have reaped the completed
2767 process earlier.
2768
1e70f85b
PH
276980. If a message was submitted locally by a user whose login name contained one
2770 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2771 It caused a spool format error. I have fixed the spool reading code. A
2772 related problem was that the "from" clause in the Received: line became
2773 illegal because of the space(s). It is now covered by ${quote_local_part.
2774
277581. Included the latest eximstats from Steve (adds average sizes to HTML Top
2776 tables).
2777
4e01f9d6
PH
277882. Updated OS/Makefile-AIX as per message from Mike Meredith.
2779
1ee1cef2
PH
278083. Patch from Sieve maintainer to fix unterminated string problem in
2781 "vacation" handling.
2782
6e2b4ccc
PH
278384. Some minor changes to the Linux configuration files to help with other
2784 OS variants using glibc.
2785
8e669ac1
PH
278685. One more patch for Sieve to update vacation handling to latest spec.
2787
495ae4b0 2788
bbe902f0
PH
2789----------------------------------------------------
2790See the note above about the 4.44 and 4.50 releases.
2791----------------------------------------------------
2792
2793
2794Exim version 4.44
2795-----------------
2796
2797 1. Change 4.43/35 introduced a bug that caused file counts to be
2798 incorrectly computed when quota_filecount was set in an appendfile
2799 transport
2800
2801 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2802 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2803 place.
2804
2805 3. Give more explanation in the error message when the command for a transport
2806 filter fails to execute.
2807
2808 4. There are several places where Exim runs a non-Exim command in a
2809 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2810 was being done only for the command run by the queryprogram router. It is
2811 now done for all such subprocesses. The other cases are: ${run, transport
2812 filters, and the commands run by the lmtp and pipe transports.
2813
2814 5. Some older OS have a limit of 256 on the maximum number of file
2815 descriptors. Exim was using setrlimit() to set 1000 as a large value
2816 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2817 systems. I've change it so that if it can't get 1000, it tries for 256.
2818
2819 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2820 was an oversight, and furthermore, ever since the addition of extra
2821 controls (e.g. 4.43/32), the checks on when to allow different forms of
2822 "control" were broken. There should now be diagnostics for all cases when a
2823 control that does not make sense is encountered.
2824
2825 7. $recipients is now available in the predata ACL (oversight).
2826
2827 8. Tidy the search cache before the fork to do a delivery from a message
2828 received from the command line. Otherwise the child will trigger a lookup
2829 failure and thereby defer the delivery if it tries to use (for example) a
2830 cached ldap connection that the parent has called unbind on.
2831
2832 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2833 of $address_data from the recipient verification was clobbered by the
2834 sender verification.
2835
283610. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2837 was its contents. (It was OK if the option was not defined at all.)
2838
283911. A "Completed" log line is now written for messages that are removed from
2840 the spool by the -Mrm option.
2841
284212. $host_address is now set to the target address during the checking of
2843 ignore_target_hosts.
2844
284513. When checking ignore_target_hosts for an ipliteral router, no host name was
2846 being passed; this would have caused $sender_host_name to have been used if
2847 matching the list had actually called for a host name (not very likely,
2848 since this list is usually IP addresses). A host name is now passed as
2849 "[x.x.x.x]".
2850
285114. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2852 code that specifies a non-restarting handler (typically sigaction() in
2853 modern systems) in an attempt to fix a rare and obscure crash bug.
2854
285515. Narrowed the window for a race in the daemon that could cause it to ignore
2856 SIGCHLD signals. This is not a major problem, because they are used only to
2857 wake it up if nothing else does.
2858
285916. A malformed maildirsize file could cause Exim to calculate negative values
2860 for the mailbox size or file count. Odd effects could occur as a result.
2861 The maildirsize information is now recalculated if the size or filecount
2862 end up negative.
2863
286417. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2865 support for a long time. Removed HAVE_SYS_VFS_H.
2866
ea3a6f44 286718. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2868
286919. Allow an empty sender to be matched against a lookup in an address list.
2870 Previously the only cases considered were a regular expression, or an
2871 empty pattern.
2872
287320. Exim went into a mad DNS lookup loop when doing a callout where the
2874 host was specified on the transport, if the DNS lookup yielded more than
2875 one IP address.
2876
ea3a6f44
NM
287721. The RFC2047 encoding function was originally intended for short strings
2878 such as real names; it was not keeping to the 75-character limit for
2879 encoded words that the RFC imposes. It now respects the limit, and
2880 generates multiple encoded words if necessary. To be on the safe side, I
2881 have increased the buffer size for the ${rfc2047: expansion operator from
2882 1024 to 2048 bytes.
bbe902f0 2883
ea3a6f44
NM
288422. Failure to deliver a bounce message always caused it to be frozen, even if
2885 there was an errors_to setting on the router. The errors_to setting is now
2886 respected.
bbe902f0
PH
2887
288823. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2889 canonical form (fully expanded) before being placed in
2890 $sender_host_address.
2891
289224. Updated eximstats to version 1.33
2893
ea3a6f44
NM
289425. Include certificate and key file names in error message when GnuTLS fails
2895 to set them up, because the GnuTLS error message doesn't include the name
2896 of the failing file when there is a problem reading it.
bbe902f0
PH
2897
289826. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2899 As per change 25.
bbe902f0 2900
ea3a6f44
NM
290127. Reset the locale to "C" after calling embedded Perl, in case it was changed
2902 (this can affect the format of dates).
bbe902f0 2903
ea3a6f44
NM
290428. exim_tidydb, when checking for the continued existence of a message for
2905 which it has found a message-specific retry record, was not finding
2906 messages that were in split spool directories. Consequently, it was
2907 deleting retry records that should have stayed in existence.
bbe902f0
PH
2908
290929. eximstats updated to version 1.35
2910 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2911 1.35 - bugfix such that pie charts by volume are generated correctly
2912
ea3a6f44
NM
291330. The SPA authentication driver was not abandoning authentication and moving
2914 on to the next authenticator when an expansion was forced to fail,
2915 contradicting the general specification for all authenticators. Instead it
2916 was generating a temporary error. It now behaves as specified.
bbe902f0 2917
ea3a6f44
NM
291831. The default ordering of permitted cipher suites for GnuTLS was pessimal
2919 (the order specifies the preference for clients). The order is now AES256,
2920 AES128, 3DES, ARCFOUR128.
bbe902f0 2921
ea3a6f44
NM
292231. Small patch to Sieve code - explicitly set From: when generating an
2923 autoreply.
bbe902f0 2924
ea3a6f44
NM
292532. Exim crashed if a remote delivery caused a very long error message to be
2926 recorded - for instance if somebody sent an entire SpamAssassin report back
2927 as a large number of 550 error lines. This bug was coincidentally fixed by
2928 increasing the size of one of Exim's internal buffers (big_buffer) that
2929 happened as part of the Exiscan merge. However, to be on the safe side, I
2930 have made the code more robust (and fixed the comments that describe what
2931 is going on).
bbe902f0 2932
ea3a6f44
NM
293333. Some experimental protocols are using DNS PTR records for new purposes. The
2934 keys for these records are domain names, not reversed IP addresses. The
2935 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2936 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2937 CAN-2005-0021
2938
ea3a6f44
NM
293934. The host_aton() function is supposed to be passed a string that is known
2940 to be a valid IP address. However, in the case of IPv6 addresses, it was
2941 not checking this. This is a hostage to fortune. Exim now panics and dies
2942 if the condition is not met. A case was found where this could be provoked
2943 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2944 components; fortuitously, this particular loophole had already been fixed
2945 by change 4.50/55 or 4.44/33 above.
2946
2947 If there are any other similar loopholes, the new check in host_aton()
2948 itself should stop them being exploited. The report I received stated that
2949 data on the command line could provoke the exploit when Exim was running as
2950 exim, but did not say which command line option was involved. All I could
2951 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2952 running as the user.
bbe902f0
PH
2953 CAN-2005-0021
2954
ea3a6f44
NM
295535. There was a buffer overflow vulnerability in the SPA authentication code
2956 (which came originally from the Samba project). I have added a test to the
2957 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2958 CAN-2005-0022
2959
ea3a6f44
NM
296036. The daemon start-up calls getloadavg() while still root for those OS that
2961 need the first call to be done as root, but it missed one case: when
2962 deliver_queue_load_max is set with deliver_drop_privilege. This is
2963 necessary for the benefit of the queue runner, because there is no re-exec
2964 when deliver_drop_privilege is set.
bbe902f0 2965
ea3a6f44
NM
296637. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2967 was in use, was not putting the data itself into the right store pool;
2968 consequently, it could be overwritten for a subsequent message in the same
2969 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2970 the caching.)
bbe902f0 2971
ea3a6f44
NM
297238. Sometimes the final signoff response after QUIT could fail to get
2973 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2974 < 0 before doing a fflush(). This bug looks as though it goes back to the
2975 introduction of TLS in release 3.20, but "sometimes" must have been rare
2976 because the tests only now provoked it.
bbe902f0
PH
2977
2978
495ae4b0
PH
2979Exim version 4.43
2980-----------------
2981
2982 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2983 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2984 Now it returns an integer. A number of calls were still expecting a T/F
2985 return. Fortuitously, in all cases, the tests worked in OK situations,
2986 which is the norm. However, things would have gone wrong on any write
2987 failures on the smtp file descriptor. This function is used when sending
2988 messages over SMTP and also when doing verify callouts.
2989
2990 2. When Exim is called to do synchronous delivery of a locally submitted
2991 message (the -odf or -odi options), it no longer closes stderr before doing
2992 the delivery.
2993
2994 3. Implemented the mua_wrapper option.
2995
2996 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2997
2998 5. Implemented the functions header_remove(), header_testname(),
2999 header_add_at_position(), and receive_remove_recipient(), and exported them
3000 to local_scan().
3001
3002 6. If an ACL "warn" statement specified the addition of headers, Exim already
3003 inserted X-ACL-Warn: at the start if there was no header name. However, it
3004 was not making this test for the second and subsequent header lines if
3005 there were newlines in the string. This meant that an invalid header could
3006 be inserted if Exim was badly configured.
3007
3008 7. Allow an ACL "warn" statement to add header lines at the start or after all
3009 the Received: headers, as well as at the end.
3010
3011 8. Added the rcpt_4xx retry error code.
3012
3013 9. Added postmaster_mailfrom=xxx to callout verification option.
3014
301510. Added mailfrom=xxxx to the callout verification option, for verify=
3016 header_sender only.
3017
301811. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3019 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3020
302112. Inserted some casts to stop certain compilers warning when using pointer
3022 differences as field lengths or precisions in printf-type calls (mostly
3023 affecting debugging statements).
3024
302513. Added optional readline() support for -be (dynamically loaded).
3026
302714. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3028 same clock tick as a message's arrival, so that its received time was the
3029 same as the "first fail" time on the retry record, and that message
3030 remained on the queue past the ultimate address timeout, every queue runner
3031 would try a delivery (because it was past the ultimate address timeout) but
3032 after another failure, the ultimate address timeout, which should have then
3033 bounced the address, did not kick in. This was a "< instead of <=" error;
3034 in most cases the first failure would have been in the next clock tick
3035 after the received time, and all would be well.
3036
303715. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3038 being recognized when the domain list was tested by the match_domain
3039 condition in an expansion string.
3040
304116. Added the ${str2b64: operator.
3042
304317. Exim was always calling setrlimit() to set a large limit for the number of
3044 processes, without checking whether the existing limit was already
3045 adequate. (It did check for the limit on file descriptors.) Furthermore,
3046 errors from getrlimit() and setrlimit() were being ignored. Now they are
3047 logged to the main and panic logs, but Exim does carry on, to try to do its
3048 job under whatever limits there are.
3049
305018. Imported PCRE 5.0.
3051
305219. Trivial typo in log message " temporarily refused connection" (the leading
3053 space).
3054
305520. If the log selector return_path_on_delivery was set and an address was
3056 redirected to /dev/null, the delivery process crashed because it assumed
3057 that a return path would always be set for a "successful" delivery. In this
3058 case, the whole delivery is bypassed as an optimization, and therefore no
3059 return path is set.
3060
306121. Internal re-arrangement: the function for sending a challenge and reading
3062 a response while authentication was assuming a zero-terminated challenge
3063 string. It's now changed to take a pointer and a length, to allow for
3064 binary data in such strings.
3065
306622. Added the cyrus_sasl authenticator (code supplied by MBM).
3067
306823. Exim was not respecting finduser_retries when seeking the login of the
3069 uid under which it was called; it was always trying 10 times. (The default
3070 setting of finduser_retries is zero.) Also, it was sleeping after the final
3071 failure, which is pointless.
3072
307324. Implemented tls_on_connect_ports.
3074
307525. Implemented acl_smtp_predata.
3076
307726. If the domain in control=submission is set empty, Exim assumes that the
3078 authenticated id is a complete email address when it generates From: or
3079 Sender: header lines.
3080
308127. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3082 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3083 chown and chgrp in /bin and hostname in /usr/bin.
3084
308528. Exim was keeping the "process log" file open after each use, just as it
3086 does for the main log. This opens the possibility of it remaining open for
3087 long periods when the USR1 signal hits a daemon. Occasional processlog
3088 errors were reported, that could have been caused by this. Anyway, it seems
3089 much more sensible not to leave this file open at all, so that is what now
3090 happens.
3091
309229. The long-running daemon process does not normally write to the log once it
3093 has entered its main loop, and it closes the log before doing so. This is
3094 so that log files can straightforwardly be renamed and moved. However,
3095 there are a couple of unusual error situations where the daemon does write
3096 log entries, and I had neglected to close the log afterwards.
3097
309830. The text of an SMTP error response that was received during a remote
3099 delivery was being truncated at 512 bytes. This is too short for some of
3100 the long messages that one sometimes sees. I've increased the limit to
3101 1024.
3102
310331. It is now possible to make retry rules that apply only when a message has a
3104 specific sender, in particular, an empty sender.
3105
310632. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3107 it possible to be selective about when SMTP synchronization is enforced.
3108
310933. Added "control = caseful_local_part" and "control = "caselower_local_part".
3110
311132. Implemented hosts_connection_nolog.
3112
311333. Added an ACL for QUIT.
3114
311534. Setting "delay_warning=" to disable warnings was not working; it gave a
3116 syntax error.
3117
311835. Added mailbox_size and mailbox_filecount to appendfile.
3119
312036. Added control = no_multiline_responses to ACLs.
3121
312237. There was a bug in the logic of the code that waits for the clock to tick
3123 in the case where the clock went backwards by a substantial amount such
3124 that the microsecond fraction of "now" was more than the microsecond
3125 fraction of "then" (but the whole seconds number was less).
3126
312738. Added support for the libradius Radius client library this is found on
3128 FreeBSD (previously only the radiusclient library was supported).
3129
3130
3131Exim version 4.42
3132-----------------
3133
3134 1. When certain lookups returned multiple values in the form name=value, the
3135 quoting of the values was not always being done properly. Specifically:
3136 (a) If the value started with a double quote, but contained no whitespace,
3137 it was not quoted.
3138 (b) If the value contained whitespace other than a space character (i.e.
3139 tabs or newlines or carriage returns) it was not quoted.
3140 This fix has been applied to the mysql and pgsql lookups by writing a
3141 separate quoting function and calling it from the lookup code. The fix
3142 should probably also be applied to nisplus, ibase and oracle lookups, but
3143 since I cannot test any of those, I have not disturbed their existing code.
3144
3145 2. A hit in the callout cache for a specific address caused a log line with no
3146 reason for rejecting RCPT. Now it says "Previous (cached) callout
3147 verification failure".
3148
3149 3. There was an off-by-one bug in the queryprogram router. An over-long
3150 return line was truncated at 256 instead of 255 characters, thereby
3151 overflowing its buffer with the terminating zero. As well as fixing this, I
3152 have increased the buffer size to 1024 (and made a note to document this).
3153
3154 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3155 when Exim is waiting for an SMTP response from a remote server, Exim
3156 restarts its select() call on the socket, thereby resetting its timeout.
3157 This is not a problem when such interrupts are rare. Somebody set up a cron
3158 job to run exiwhat every 2 minutes, which is less than the normal select()
3159 timeout (5 or 10 minutes). This meant that the select() timeout never
3160 kicked in because it was always reset. I have fixed this by comparing the
3161 time when an interrupt arrives with the time at the start of the first call
3162 to select(). If more time than the timeout has elapsed, the interrupt is
3163 treated as a timeout.
3164
3165 5. Some internal re-factoring in preparation for the addition of Sieve
3166 extensions (by MH). In particular, the "personal" test is moved to a
3167 separate function, and given an option for scanning Cc: and Bcc: (which is
3168 not set for Exim filters).
3169
3170 6. When Exim created an email address using the login of the caller as the
3171 local part (e.g. when creating a From: or Sender: header line), it was not
3172 quoting the local part when it contained special characters such as @.
3173
3174 7. Installed new OpenBSD configuration files.
3175
3176 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3177 try to make them clearer.
3178
3179 9. Callout options, other than the timeout value, were being ignored when
3180 verifying sender addresses in header lines. For example, when using
3181
3182 verify = header_sender/callout=no_cache
3183
3184 the cache was (incorrectly) being used.
3185
318610. Added a missing instance of ${EXE} to the exim_install script; this affects
3187 only the Cygwin environment.
3188
318911. When return_path_on_delivery was set as a log selector, if different remote
3190 addresses in the same message used different return paths and parallel
3191 remote delivery occurred, the wrong values would sometimes be logged.
3192 (Whenever a remote delivery process finished, the return path value from
3193 the most recently started remote delivery process was logged.)
3194
319512. RFC 3848 specifies standard names for the "with" phrase in Received: header
3196 lines when AUTH and/or TLS are in use. This is the "received protocol"
3197 field. Exim used to use "asmtp" for authenticated SMTP, without any
3198 indication (in the protocol name) for TLS use. Now it follows the RFC and
3199 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3200 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3201 names appear in log lines as well as in Received: header lines.
3202
320313. Installed MH's patches for Sieve to add the "copy" and "vacation"
3204 extensions, and comparison tests, and to fix some bugs.
3205
320614. Changes to the "personal" filter test:
3207
3208 (1) The test was buggy in that it was just doing the equivalent of
3209 "contains" tests on header lines. For example, if a user's address was
3210 anne@some.where, the "personal" test would incorrectly be true for
3211
3212 To: susanne@some.where
3213
3214 This test is now done by extracting each address from the header in turn,
3215 and checking the entire address. Other tests that are part of "personal"
3216 are now done using regular expressions (for example, to check local parts
3217 of addresses in From: header lines).
3218
3219 (2) The list of non-personal local parts in From: addresses has been
3220 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3221 taken from the Sieve specification recommendations.
3222
3223 (3) If the message contains any header line starting with "List-" it is
3224 treated as non-personal.
3225
3226 (4) The test for "circular" in the Subject: header line has been removed
3227 because it now seems ill-conceived.
3228
322915. Minor typos in src/EDITME comments corrected.
3230
323116. Installed latest exipick from John Jetmore.
3232
323317. If headers_add on a router specified a text string that was too long for
3234 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3235 of string_sprintf() is now avoided.
3236
323718. $message_body_size was not set (it was always zero) when running the DATA
3238 ACL and the local_scan() function.
3239
324019. For the "mail" command in an Exim filter, no default was being set for
3241 the once_repeat time, causing a random time value to be used if "once" was
3242 specified. (If the value happened to be <= 0, no repeat happened.) The
3243 default is now 0s, meaning "never repeat". The "vacation" command was OK
3244 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3245 (I found it when inspecting the code).
3246
324720. There is now an overall timeout for performing a callout verification. It
3248 defaults to 4 times the callout timeout, which applies to individual SMTP
3249 commands during the callout. The overall timeout applies when there is more
3250 than one host that can be tried. The timeout is checked before trying the
3251 next host. This prevents very long delays if there are a large number of
3252 hosts and all are timing out (e.g. when the network connections are timing
3253 out). The value of the overall timeout can be changed by specifying an
3254 additional sub-option for "callout", called "maxwait". For example:
3255
3256 verify = sender/callout=5s,maxwait=20s
3257
325821. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3259 to the end before writing, but this should make it even safer).
3260
326122. Exim was forgetting that it had advertised PIPELINING for the second and
3262 subsequent messages on an SMTP connection. It was also not resetting its
3263 memory on STARTTLS and an internal HELO.
3264
326523. When Exim logs an SMTP synchronization error within a session, it now
3266 records whether PIPELINING has been advertised or not.
3267
326824. Added 3 instances of "(long int)" casts to time_t variables that were being
3269 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3270 rather than long int.
3271
327225. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3273
327426. Added the never_mail option to autoreply.
3275
3276
3277Exim version 4.41
3278-----------------
3279
3280 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3281 crash if the getsockname() call failed; this can happen if a connection is
3282 closed very soon after it is established. The problem was simply in the
3283 order in which certain operations were done, causing Exim to try to write
3284 to the SMTP stream before it had set up the file descriptor. The bug has
3285 been fixed by making things happen in the correct order.
3286
3287
3288Exim version 4.40
3289-----------------
3290
3291 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3292 before the connection was closed, thus losing the rejection response.
3293
3294 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3295 some early Solaris releases, but causes trouble in current releases where
3296 socklen_t is defined.
3297
3298 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3299 always exist.
3300
3301 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3302 configured.
3303
3304 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3305 that releasing the top of it at the end releases what was used for sub-
3306 expansions (unless the block got too big). However, discard this block if
3307 the first thing is a variable or header, so that we can use its block when
3308 it is dynamic (useful for very large $message_headers, for example).
3309
3310 6. Lookups now cache *every* query, not just the most recent. A new, separate
3311 store pool is used for this. It can be recovered when all lookup caches are
3312 flushed. Lookups now release memory at the end of their result strings.
3313 This has involved some general refactoring of the lookup sources.
3314
3315 7. Some code has been added to the store_xxx() functions to reduce the amount
3316 of flapping under certain conditions.
3317
3318 8. log_incoming_interface used to affect only the <= reception log lines. Now
3319 it causes the local interface and port to be added to several more SMTP log
3320 lines, for example "SMTP connection from", and rejection lines.
3321
3322 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3323
332410. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3325
332611. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3327 could be overwritten at the end of the current message (or the start of a
3328 new message if it was set in a HELO ACL). The value is now preserved for
3329 the duration of the SMTP connection.
3330
333112. If a transport had a headers_rewrite setting, and a matching header line
3332 contained an unqualified address, that address was qualified, even if it
3333 did not match any rewriting rules. The underlying bug was that the values
3334 of the flags that permit the existence of unqualified sender and recipient
3335 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3336 non-local messages, and by -bnq for local messages) were not being
3337 preserved with the message after it was received.
3338
333913. When Exim was logging an SMTP synchronization error, it could sometimes log
3340 "next input=" as part of the text comprising the host identity instead of
3341 the correct text. The code was using the same buffer for two different
3342 strings. However, depending on which order the printing function evaluated
3343 its arguments, the bug did not always show up. Under Linux, for example, my
3344 test suite worked just fine.
3345
334614. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3347 doesn't work with some older versions of Perl. It has been changed to "my",
3348 which in any case is probably the better facility to use.
3349
335015. A really picky compiler found some instances of statements for creating
3351 error messages that either had too many or two few arguments for the format
3352 string.
3353
335416. The size of the buffer for calls to the DNS resolver has been increased
3355 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3356 for addresses that have a lot of PTR records. This alleviates a problem; it
3357 does not fully solve it.
3358
335917. A dnsdb lookup for PTR records that receives more data than will fit in the
3360 buffer now truncates the list and logs the incident, which is the same
3361 action as happens when Exim is looking up a host name and its aliases.
3362 Previously in this situation something unpredictable would happen;
3363 sometimes it was "internal error: store_reset failed".
3364
336518. If a server dropped the connection unexpectedly when an Exim client was
3366 using GnuTLS and trying to read a response, the client delivery process
3367 crashed while trying to generate an error log message.
3368
336919. If a "warn" verb in an ACL added multiple headers to a message in a single
3370 string, for example:
3371
3372 warn message = H1: something\nH2: something
3373
3374 the text was added as a single header line from Exim's point of view
3375 though it ended up OK in the delivered message. However, searching for the
3376 second and subsequent header lines using $h_h2: did not work. This has been
3377 fixed. Similarly, if a system filter added multiple headers in this way,
3378 the routers could not see them.
3379
338020. Expanded the error message when iplsearch is called with an invalid key to
3381 suggest using net-iplsearch in a host list.
3382
338321. When running tests using -bh, any delays imposed by "delay" modifiers in
3384 ACLs are no longer actually imposed (and a message to that effect is
3385 output).
3386
338722. If a "gecos" field in a passwd entry contained escaped characters, in
3388 particular, if it contained a \" sequence, Exim got it wrong when building
3389 a From: or a Sender: header from that name. A second bug also caused
3390 incorrect handling when an unquoted " was present following a character
3391 that needed quoting.
3392
339323. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3394 was not being matched caselessly.
3395
339624. Arranged for all hyphens in the exim.8 source to be escaped with
3397 backslashes.
3398
339925. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3400 properly. Recipient callout cache records were still being keyed to include
3401 the sender, even when use_sender was set false. This led to far more
3402 callouts that were necessary. The sender is no longer included in the key
3403 when use_sender is false.
3404
340526. Added "control = submission" modifier to ACLs.
3406
340727. Added the ${base62d: operator to decode base 62 numbers.
3408
340928. dnsdb lookups can now access SRV records.
3410
341129. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3412 the configuration file.
3413
341430. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3415 (-v) mode. This makes the output for a verbose queue run more intelligible.
3416
341731. Added a use_postmaster feature to recipient callouts.
3418
341932. Added the $body_zerocount variable, containing the number of binary zero
3420 bytes in the message body.
3421
342233. The time of last modification of the "new" subdirectory is now used as the
3423 "mailbox time last read" when there is a quota error for a maildir
3424 delivery.
3425
342634. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3427
342835. Added +ignore_unknown as a special item in host lists.
3429
343036. Code for decoding IPv6 addresses in host lists is now included, even if
3431 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3432 address was recognized as an IP address, but was then not correctly decoded
3433 into binary, causing unexpected and incorrect effects when compared with
3434 another IP address.
3435
3436
3437Exim version 4.34
3438-----------------
3439
3440 1. Very minor rewording of debugging text in manualroute to say "list of
3441 hosts" instead of "hostlist".
3442
3443 2. If verify=header_syntax was set, and a header line with an unqualified
3444 address (no domain) and a large number of spaces between the end of the
3445 name and the colon was received, the reception process suffered a buffer
3446 overflow, and (when I tested it) crashed. This was caused by some obsolete
3447 code that should have been removed. The fix is to remove it!
3448
3449 3. When running in the test harness, delay a bit after writing a bounce
3450 message to get a bit more predictability in the log output.
3451
3452 4. Added a call to search_tidyup() just before forking a reception process. In
3453 theory, someone could use a lookup in the expansion of smtp_accept_max_
3454 per_host which, without the tidyup, could leave open a database connection.
3455
3456 5. Added the variables $recipient_data and $sender_data which get set from a
3457 lookup success in an ACL "recipients" or "senders" condition, or a router
3458 "senders" option, similar to $domain_data and $local_part_data.
3459
3460 6. Moved the writing of debug_print from before to after the "senders" test
3461 for routers.
3462
3463 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3464 problems for message scanning, either using a data ACL, or using
3465 local_scan() because the Received: header was not generated till after they
3466 were called (in order to set the time as the time of reception completion).
3467 I have revised the way this works. The header is now generated after the
3468 body is received, but before the ACL or local_scan() are called. After they
3469 are run, the timestamp in the header is updated.
3470
3471
3472Exim version 4.33
3473-----------------
3474
3475 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3476 before starting a queue runner without re-exec. This happened only when
3477 deliver_drop_privilege was set or when the Exim user was set to root. The
3478 effect of the bug was that timeouts during subsequent deliveries caused
3479 crashes instead of being properly handled. The handler is now left at its
3480 default (and expected) setting.
3481
3482 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3483 message, again when deliver_drop_privilege is set or Exim is run as root.
3484 The bug described in (1) was not present in this case, but the tidying up
3485 of the other signals was missing. I have made the two cases consistent.
3486
3487 3. The ignore_target_hosts setting on a manualroute router was being ignored
3488 for hosts that were looked up using the /MX notation.
3489
3490 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3491 in domain lists.
3492
3493 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3494 operated on the sender address. After changing the $sender_address to <>
3495 for the sender address verify, Exim was re-instated it as the original
3496 (before rewriting) address, but remembering that it had rewritten it, so it
3497 wasn't rewriting it again. This bug also had the effect of breaking the
3498 sender address verification caching when the sender address was rewritten.
3499
3500 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3501 This has been changed so that if the ip literal address matches
3502 ignore_target_hosts, the router declines.
3503
3504 7. Added expansion conditions match_domain, match_address, and match_local_
3505 part (NOT match_host).
3506
3507 8. The placeholder for the Received: header didn't have a length field set.
3508
3509 9. Added code to Exim itself and to exim_lock to test for a specific race
3510 condition that could lead to file corruption when using MBX delivery. The
3511 issue is with the lockfile that is created in /tmp. If this file is removed
3512 after a process has opened it but before that process has acquired a lock,
3513 there is the potential for a second process to recreate the file and also
3514 acquire a lock. This could lead to two Exim processes writing to the file
3515 at the same time. The added code performs the same test as UW imapd; it
3516 checks after acquiring the lock that its file descriptor still refers to
3517 the same named file.
3518
351910. The buf