Fix bug in relaxed body canon.
[exim.git] / doc / doc-txt / ChangeLog
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0cc09577 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.583 2009/10/26 13:22:13 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
TK
9TK/01 Added patch by Johannes Berg that expands the main option
10 "spamd_servers" if it starts with a dollar sign.
11
12TK/02 Write list of recipients to X-Envelope-Sender header when building
13 the mbox-format spool file for content scanning (suggested by Jakob
14 Hirsch)
15
16TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
17 (http://www.dcc-servers.net/) support via dccifd. Activated by
18 setting EXPERIMENTAL_DCC=yes in Local/Makefile. Check out
19 experimental_spec.txt for more documentation.
20
21TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
22 by Mark Daniel Reidel <mr@df.eu>.
23
210f147e
NM
24NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
25 When building exim an external PCRE library is now needed -
26 PCRE is a system library on the majority of modern systems.
27 See entry on PCRE_LIBS in EDITME file.
28
deafd5b3
NM
29NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
30 conversation. Added nologin parameter to request.
31 Patch contributed by Kirill Miazine
32
089793a4
TF
33TF/01 Do not log submission mode rewrites if they do not change the address.
34
5f16ca82
TF
35TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
36
dae9d94e
NM
37NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
38 log files in place. Contributed by Roberto Lima
39
3f0da4d0
NM
40NM/04 Bugzilla 667: close socket used by dovecot authenticator
41
06864c44
TF
42TF/03 Bugzilla 615: When checking the local_parts router precondition
43 after a local_part_suffix or local_part_prefix option, Exim now
44 does not use the address's named list lookup cache, since this
45 contains cached lookups for the whole local part.
46
65a7d8c3
NM
47NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
48 Robert Millan. Documentation is in experimental-spec.txt
49
23510047 50TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 51
5f28a6e8
NM
52NM/05 Bugzilla 437: Prevent Maildix aux files being created with mode 000
53
ce552449 54NM/05 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
55 Patch provided by Jan Srzednicki
56
89dec7b6
TF
57TF/05 Leading white space used to be stripped from $spam_report which
58 wrecked the formatting. Now it is preserved.
5f28a6e8 59
a99de90c
TF
60TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
61 that they are available at delivery time.
62
e2803e40
TF
63TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
64
7199e1ee
TF
65TF/08 TLS error reporting now respects the incoming_interface and
66 incoming_port log selectors.
67
e276e04b
TF
68TF/09 Produce a more useful error message if an SMTP transport's hosts
69 setting expands to an empty string.
70
ce552449
NM
71NM/06 Bugzilla 744: EXPN did not work under TLS.
72 Patch provided by Phil Pennock
73
e765a0f1
NM
74NM/07 Bugzilla 769: Extraneous comma in usage fprintf
75 Patch provided by Richard Godbee
76
4f054c63 77NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 78 acl_smtp_notquit, added index entry.
4f054c63 79
24c929a2
NM
80NM/09 Bugzilla 787: Potential buffer overflow in string_format
81 Patch provided by Eugene Bujak
82
cf73943b
NM
83NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
84 Patch provided by Maxim Dounin
85
b52bc06e
NM
86NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
87 Patch provided by Phil Pennock
88
447de4b0
NM
89NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
90
4c69d561
NM
91NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
92 Patch provided by Brad "anomie" Jorsch
93
d5c39246 94NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
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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
NM
102NM/16 Bugzilla 851: Documentation example syntax fix.
103
104NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 105
dbb0bf41
NM
106NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
107
f3766eb5
NM
108NM/19 Bugzilla 745: TLS version reporting
109 Patch provided by Phil Pennock
110
111NM/20 Bugzilla 167: bool: condition support
112 Patch provided by Phil Pennock
36f12725 113
e6060e2c
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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
NM
126NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
127
128NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 129
8dc71ab3
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130NM/27 Bugzilla 802: Improvements to local interface IP addr detection
131 Patch provided by David Brownlee
132
400eda43
NM
133NM/28 Bugzilla 807: Improvements to LMTP delivery logging
134
135NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 136
07af267e
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137NM/30 Bugzilla 888: TLS documentation bugfixes
138
0cc09577 139NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 140
deafd5b3 141
47db1125
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142Exim version 4.69
143-----------------
144
4b3504d0
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145TK/01 Add preliminary DKIM support. Currently requires a forked version of
146 ALT-N's libdkim that I have put here:
147 http://duncanthrax.net/exim-experimental/
148
149 Note to Michael Haardt: I had to rename some vars in sieve.c. They
150 were called 'true' and it seems that C99 defines that as a reserved
151 keyword to be used with 'bool' variable types. That means you could
152 not include C99-style headers which use bools without triggering
153 build errors in sieve.c.
154
81ea09ca
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155NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
156 as mailq or other aliases. Changed the --help handling significantly
157 to do whats expected. exim_usage() emits usage/help information.
158
f13cddcb
SC
159SC/01 Added the -bylocaldomain option to eximstats.
160
8ad076b2
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161NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
162
a843aaa6
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163NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
164
47db1125
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165NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
166
167
eb4c0de6
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168Exim version 4.68
169-----------------
170
171PH/01 Another patch from the Sieve maintainer.
172
6a3bceb1
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173PH/02 When an IPv6 address is converted to a string for single-key lookup
174 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
175 dots are used instead of colons so that keys in lsearch files need not
176 contain colons. This was done some time before quoting was made available
177 in lsearch files. However, iplsearch files do require colons in IPv6 keys
178 (notated using the quote facility) so as to distinguish them from IPv4
179 keys. This meant that lookups for IP addresses in host lists did not work
180 for iplsearch lookups.
181
182 This has been fixed by arranging for IPv6 addresses to be expressed with
183 colons if the lookup type is iplsearch. This is not incompatible, because
184 previously such lookups could never work.
185
186 The situation is now rather anomolous, since one *can* have colons in
187 ordinary lsearch keys. However, making the change in all cases is
188 incompatible and would probably break a number of configurations.
189
2e30fa9d
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190TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
191 version.
192
0806a9c5
MH
193MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
194 conversion specification without a maximum field width, thereby enabling
195 a rogue spamd server to cause a buffer overflow. While nobody in their
196 right mind would setup Exim to query an untrusted spamd server, an
197 attacker that gains access to a server running spamd could potentially
198 exploit this vulnerability to run arbitrary code as the Exim user.
199
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200TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
201 $primary_hostname instead of what libspf2 thinks the hosts name is.
202
0f2cbd1b
MH
203MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
204 a directory entry by the name of the lookup key. Previously, if a
205 symlink pointed to a non-existing file or a file in a directory that
206 Exim lacked permissions to read, a lookup for a key matching that
207 symlink would fail. Now it is enough that a matching directory entry
208 exists, symlink or not. (Bugzilla 503.)
209
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210PH/03 The body_linecount and body_zerocount variables are now exported in the
211 local_scan API.
212
93655c46
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213PH/04 Added the $dnslist_matched variable.
214
6c512171
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215PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
216 This means they are set thereafter only if the connection becomes
217 encrypted.
218
219PH/06 Added the client_condition to authenticators so that some can be skipped
220 by clients under certain conditions.
221
aa6dc513
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222PH/07 The error message for a badly-placed control=no_multiline_responses left
223 "_responses" off the end of the name.
224
a96603a0
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225PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
226
8f240103
PH
227PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
228 (without spaces) instead of just copying the configuration text.
229
230PH/10 Added the /noupdate option to the ratelimit ACL condition.
231
d677b2f2
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232PH/11 Added $max_received_linelength.
233
d52120f2
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234PH/12 Added +ignore_defer and +include_defer to host lists.
235
64f2600a
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236PH/13 Installed PCRE version 7.2. This needed some changes because of the new
237 way in which PCRE > 7.0 is built.
238
8669f003
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239PH/14 Implemented queue_only_load_latch.
240
a4dc33a8
PH
241PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
242 MAIL command. The effect was to mangle the value on 64-bit systems.
243
d6a60c0f
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244PH/16 Another patch from the Sieve maintainer.
245
8f128379
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246PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
247
8932dffe
PH
248PH/18 If a system quota error occurred while trying to create the file for
249 a maildir delivery, the message "Mailbox is full" was not appended to the
250 bounce if the delivery eventually timed out. Change 4.67/27 below applied
251 only to a quota excession during the actual writing of the file.
d6a60c0f 252
ddea74fa 253PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
254 characters?) which causes problems in log lines. The DN values are now
255 passed through string_printing() before being added to log lines.
256
ddea74fa 257PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
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258 and InterBase are left for another time.)
259
ddea74fa
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260PH/21 Added message_body_newlines option.
261
ce9f225c
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262PH/22 Guard against possible overflow in moan_check_errorcopy().
263
19897d52
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264PH/23 POSIX allows open() to be a macro; guard against that.
265
bc64a74d
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266PH/24 If the recipient of an error message contained an @ in the local part
267 (suitably quoted, of course), incorrect values were put in $domain and
268 $local_part during the evaluation of errors_copy.
269
eb4c0de6 270
b4ed4da0
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271Exim version 4.67
272-----------------
273
22ad45c9
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274MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
275 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
276 Jan Srzednicki.
277
b4ed4da0
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278PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
279 issue a MAIL command.
280
431b7361
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281PH/02 In an ACL statement such as
282
283 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
284
285 if a client was not listed at all, or was listed with a value other than
286 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
287 the condition was not true (as it should be), so access was not denied.
288 The bug was that the ! inversion was incorrectly passed on to the second
289 item. This has been fixed.
290
291PH/03 Added additional dnslists conditions == and =& which are different from
292 = and & when the dns lookup returns more than one IP address.
293
83da1223
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294PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
295 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
296
54fc8428
PH
297PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
298 FSYNC, which compiles an option called disable_fsync that allows for
299 bypassing fsync(). The documentation is heavily laced with warnings.
300
34c5e8dd
SC
301SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
302
bbe15da8
PH
303PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
304 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
305 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
306 including adding "make clean"; (3) Added -fPIC when compiling the test
307 dynamically loaded module, to get rid of a warning.
308
0e8a9471
MH
309MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
310 message fails, move_frozen_messages = true and ignore_bounce_errors_after
311 = 0s. The bug is otherwise harmless.
312
f0872424
PH
313PH/07 There was a bug in the dovecot authenticator such that the value of
314 $auth1 could be overwritten, and so not correctly preserved, after a
315 successful authentication. This usually meant that the value preserved by
316 the server_setid option was incorrect.
317
b01dd148
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318PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
319
6bf342e1
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320PH/09 Installed PCRE release 7.0.
321
273f34d0
PH
322PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
323 run for batched SMTP input. It is now run at the start of every message
324 in the batch. While fixing this I discovered that the process information
325 (output by running exiwhat) was not always getting set for -bs and -bS
326 input. This is fixed, and it now also says "batched" for BSMTP.
327
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328PH/11 Added control=no_pipelining.
329
41c7c167
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330PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
331 patch, slightly modified), and move the expansion of helo_data till after
332 the connection is made in the smtp transport (so it can use these
333 values).
334
9c57cbc0
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335PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
336
f3f065bb
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337PH/14 Added log_selector = +pid.
338
047bdd8c
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339PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
340
0ce9abe6
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341PH/16 Add ${if forany and ${if forall.
342
0e22dfd1
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343PH/17 Added dsn_from option to vary the From: line in DSNs.
344
4c590bd1
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345PH/18 Flush SMTP output before performing a callout, unless control =
346 no_callout_flush is set.
347
09945f1e
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348PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
349 was true (the default) a successful delivery failed to delete the retry
350 item, thus causing premature timeout of the address. The bug is now
351 fixed.
352
c51b8e75
PH
353PH/20 Added hosts_avoid_pipelining to the smtp transport.
354
e28326d8
PH
355PH/21 Long custom messages for fakedefer and fakereject are now split up
356 into multiline reponses in the same way that messages for "deny" and
357 other ACL rejections are.
358
75b1493f
PH
359PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
360 with slight modification.
361
7c5214ec
PH
362PH/23 Applied sieve patches from the maintainer "tracking the latest notify
363 draft, changing the syntax and factoring some duplicate code".
364
4311097e
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365PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
366 for deliveries of the second and subsequent messages over the same SMTP
367 connection.
368
29f89cad
PH
369PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
370 ${reduce, with only minor "tidies".
371
5e687460
SC
372SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
373
c3611384
PH
374PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
375 expansion side effects.
376
5a11a7b4
PH
377PH/27 When a message times out after an over-quota error from an Exim-imposed
378 quota, the bounce message says "mailbox is full". This message was not
379 being given when it was a system quota that was exceeded. It now should
380 be the same.
381
0e20aff9
MH
382MH/03 Made $recipients available in local_scan(). local_scan() already has
383 better access to the recipient list through recipients_list[], but
384 $recipients can be useful in postmaster-provided expansion strings.
385
ca86f471
PH
386PH/28 The $smtp_command and $smtp_command_argument variables were not correct
387 in the case of a MAIL command with additional options following the
388 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
389 were accidentally chopped off.
390
a14e5636
PH
391PH/29 SMTP synchronization checks are implemented when a command is read -
392 there is a check that no more input is waiting when there shouldn't be
393 any. However, for some commands, a delay in an ACL can mean that it is
394 some time before the response is written. In this time, more input might
395 arrive, invalidly. So now there are extra checks after an ACL has run for
396 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
397 pipelining has not been advertised.
398
ec95d1a6
PH
399PH/30 MH's patch to allow iscntrl() characters to be list separators.
400
42855d71
PH
401PH/31 Unlike :fail:, a custom message specified with :defer: was not being
402 returned in the SMTP response when smtp_return_error_details was false.
403 This has been fixed.
404
57c2c631
PH
405PH/32 Change the Dovecot authenticator to use read() and write() on the socket
406 instead of the C I/O that was originally supplied, because problems were
407 reported on Solaris.
408
58c01c94
PH
409PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
410 Exim which did not show up earlier: it was assuming that a call to
411 SSL_CTX_set_info_callback() might give an error value. In fact, there is
412 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
413 was a macro that became an assignment, so it seemed to work. This has
414 changed to a proper function call with a void return, hence the compile
415 error. Exim's code has been fixed.
416
dee5a20a
PH
417PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
418 cpus.
419
d2ee6114
PH
420PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
421
b2d5182b
PH
422PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
423
79749a79
PH
424PH/37 If a message is not accepted after it has had an id assigned (e.g.
425 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
426 "Completed" line in the log. When some messages of this type were
427 selected by exigrep, they were listed as "not completed". Others were
428 picked up by some special patterns. I have improved the selection
429 criteria to be more general.
79749a79 430
c456d9bb
PH
431PH/38 The host_find_failed option in the manualroute router can now be set
432 to "ignore", to completely ignore a host whose IP address cannot be
433 found. If all hosts are ignored, the behaviour is controlled by the new
434 host_all_ignored option.
435
cd9868ec
PH
436PH/39 In a list of hosts for manualroute, if one item (either because of multi-
437 homing or because of multiple MX records with /mx) generated more than
438 one IP address, and the following item turned out to be the local host,
439 all the secondary addresses of the first item were incorrectly removed
440 from the list, along with the local host and any following hosts (which
441 is what is supposed to happen).
442
ebeaf996
PH
443PH/40 When Exim receives a message, it writes the login name, uid, and gid of
444 whoever called Exim into the -H file. In the case of the daemon it was
445 behaving confusingly. When first started, it used values for whoever
446 started the daemon, but after a SIGHUP it used the Exim user (because it
447 calls itself on a restart). I have changed the code so that it now always
448 uses the Exim user.
449
2679d413
PH
450PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
451 message are rejected with the same error (e.g. no authentication or bad
452 sender address), and a DATA command is nevertheless sent (as can happen
453 with PIPELINING or a stupid MUA), the error message that was given to the
454 RCPT commands is included in the rejection of the DATA command. This is
455 intended to be helpful for MUAs that show only the final error to their
456 users.
457
84024b72
PH
458PH/42 Another patch from the Sieve maintainer.
459
8005d38e
SC
460SC/02 Eximstats - Differentiate between permanent and temporary rejects.
461 Eximstats - Fixed some broken HTML links and added missing column headers
462 (Jez Hancock).
463 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
464 columns for Rejects, Temp Rejects, Ham, and Spam rows.
465
3298c6c6
SC
466SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
467
a43a27c5
PH
468PH/43 Yet another patch from the Sieve maintainer.
469
58eb016e 470PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
471 the response to the final '.' that terminates a message, but only in the
472 case where the client has not sent further data following the '.'
473 (unfortunately, this is allowed). However, in many cases there won't be
474 any further data because there won't be any more messages to send. A call
475 to select() can be used: if it shows that the input is "ready", there is
476 either input waiting, or the socket has been closed. An attempt to read
477 the next input character can distinguish the two cases. Previously, Exim
58eb016e 478 would have sent an OK response which the client would never have see.
563b63fa
PH
479 This could lead to message repetition. This fix should cure that, at
480 least in a lot of common cases.
58eb016e 481
b43a74ea
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482PH/45 Do not advertise STARTTLS in response to HELP unless it would be
483 advertised in response to EHLO.
484
b4ed4da0 485
5dd1517f
PH
486Exim version 4.66
487-----------------
488
489PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
490 fixed by 4.65/MH/01 (is this a record?) are fixed:
491
492 (i) An empty string was always treated as zero by the numeric comparison
493 operators. This behaviour has been restored.
494
495 (ii) It is documented that the numeric comparison operators always treat
496 their arguments as decimal numbers. This was broken in that numbers
497 starting with 0 were being interpreted as octal.
498
499 While fixing these problems I realized that there was another issue that
500 hadn't been noticed. Values of message_size_limit (both the global option
501 and the transport option) were treated as octal if they started with 0.
502 The documentation was vague. These values are now always treated as
503 decimal, and I will make that clear in the documentation.
504
505
93cfa765
TK
506Exim version 4.65
507-----------------
508
509TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
510 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
511 versions. (#438)
512
d6066548
MH
513MH/01 Don't check that the operands of numeric comparison operators are
514 integers when their expansion is in "skipping" mode (fixes bug
515 introduced by 4.64-PH/07).
516
4362ff0d
PH
517PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
518 child addresses, Exim now panics and dies. Previously, because the count
519 is held in a short int, deliveries were likely to be lost. As such a
520 large number of recipients for a single message is ridiculous
521 (performance will be very, very poor), I have chosen to impose a limit
522 rather than extend the field.
523
93cfa765 524
944e9e9c
TF
525Exim version 4.64
526-----------------
aa41d2de 527
21d74bd9
TK
528TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
529 leftover -K file (the existence of which was triggered by #402).
530 While we were at it, introduced process PID as part of the -K
531 filename. This should rule out race conditions when creating
532 these files.
533
534TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
535 processing considerably. Previous code took too long for large mails,
536 triggering a timeout which in turn triggers #401.
537
538TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
539 in the DK code in transports.c. sendfile() is not really portable,
540 hence the _LINUX specificness.
944e9e9c
TF
541
542TF/01 In the add_headers option to the mail command in an Exim filter,
543 there was a bug that Exim would claim a syntax error in any
544 header after the first one which had an odd number of characters
545 in the field name.
546
2b1c6e3a
PH
547PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
548 callout verification, Exim cached a "reject" for the entire domain. This
549 is correct for most verifications, but it is not correct for a recipient
550 verification with use_sender or use_postmaster set, because in that case
551 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
552 case of MAIL FROM:<> rejection from other early rejections (e.g.
553 rejection of HELO). When verifying a recipient using a non-null MAIL
554 address, the cache is ignored if it shows MAIL FROM:<> rejection.
555 Whatever the result of the callout, the value of the domain cache is
556 left unchanged (for any other kind of callout, getting as far as trying
557 RCPT means that the domain itself is ok).
558
1f872c80
PH
559PH/02 Tidied a number of unused variable and signed/unsigned warnings that
560 gcc 4.1.1 threw up.
561
562PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
563 manifest itself as EPIPE rather than ECONNECT. When tidying away a
564 session, the daemon ignores ECONNECT errors and logs others; it now
565 ignores EPIPE as well.
566
d203e649
PH
567PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
568 (quoted-printable decoding).
569
cc2ed8f7 570PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 571 later the small subsequent patch to fix an introduced bug.
f951fd57 572
ddfcd446
PH
573PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
574
d45b1de8
PH
575PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
576
577PH/08 An error is now given if message_size_limit is specified negative.
578
38a0a95f 579PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 580 to be given (somewhat) arbitrary names.
38a0a95f 581
a2405d83
JJ
582JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
583 in 4.64-PH/09.
584
585JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
586 miscellaneous code fixes
587
6ea85e9a
PH
588PH/10 Added the log_reject_target ACL modifier to specify where to log
589 rejections.
590
26da7e20
PH
591PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
592 hostname. This is wrong, because it relates to the incoming message (and
593 probably the interface on which it is arriving) and not to the outgoing
594 callout (which could be using a different interface). This has been
595 changed to use the value of the helo_data option from the smtp transport
596 instead - this is what is used when a message is actually being sent. If
597 there is no remote transport (possible with a router that sets up host
598 addresses), $smtp_active_hostname is used.
6ea85e9a 599
14aa5a05 600PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 601 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
602 (a) The code assumed that strncpy() returns a negative number on buffer
603 overflow, which isn't the case. Replaced with Exim's string_format()
604 function.
605 (b) There were several signed/unsigned issues. I just did the minimum
606 hacking in of casts. There is scope for a larger refactoring.
607 (c) The code used strcasecmp() which is not a standard C function.
608 Replaced with Exim's strcmpic() function.
609 (d) The code set only $1; it now sets $auth1 as well.
610 (e) A simple test gave the error "authentication client didn't specify
611 service in request". It would seem that Dovecot has changed its
612 interface. Fortunately there's a specification; I followed it and
613 changed what the client sends and it appears to be working now.
614
ff75a1f7
PH
615PH/13 Added $message_headers_raw to provide the headers without RFC 2047
616 decoding.
617
e6f6568e
PH
618PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
619 address A is aliased to B and C, where B exists and C does not. Without
620 -v the output is "A verified" because verification stops after a
621 successful redirection if more than one address is generated. However,
622 with -v the child addresses are also verified. Exim was outputting "A
623 failed to verify" and then showing the successful verification for C,
624 with its parentage. It now outputs "B failed to verify", showing B's
625 parentage before showing the successful verification of C.
626
d6f6e0dc
PH
627PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
628 look up a TXT record in a specific list after matching in a combined
629 list.
630
322050c2
PH
631PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
632 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
633 they consult the DNS. I had assumed they would set it the way they
634 wanted; and indeed my experiments on Linux seem to show that in some
635 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
636 To be on the safe side, however, I have now made the interface to
637 host_find_byname() similar to host_find_bydns(), with an argument
638 containing the DNS resolver options. The host_find_byname() function now
639 sets these options at its start, just as host_find_bydns() does. The smtp
640 transport options dns_qualify_single and dns_search_parents are passed to
641 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
642 of host_find_byname() use the default settings of RES_DEFNAMES
643 (qualify_single) but not RES_DNSRCH (search_parents).
644
08955dd3
PH
645PH/17 Applied (a modified version of) Nico Erfurth's patch to make
646 spool_read_header() do less string testing, by means of a preliminary
647 switch on the second character of optional "-foo" lines. (This is
648 overdue, caused by the large number of possibilities that now exist.
649 Originally there were few.) While I was there, I also converted the
650 str(n)cmp tests so they don't re-test the leading "-" and the first
651 character, in the hope this might squeeze out yet more improvement.
652
1eccaa59
PH
653PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
654 flag allowing group syntax was set by the header_syntax check but not
655 turned off, possible causing trouble later; (2) The flag was not being
656 set at all for the header_verify test, causing "group"-style headers to
657 be rejected. I have now set it in this case, and also caused header_
658 verify to ignore an empty address taken from a group. While doing this, I
659 came across some other cases where the code for allowing group syntax
660 while scanning a header line wasn't quite right (mostly, not resetting
661 the flag correctly in the right place). These bugs could have caused
662 trouble for malformed header lines. I hope it is now all correct.
663
602e59e5
PH
664PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
665 with the "reply" argument non-NULL. The code, however (which originally
666 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
667 but it didn't always do it. This confused somebody who was copying the
668 code for some other use. I have removed all the tests.
669
411ef850
PH
670PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
671 feature that was used to support insecure browsers during the U.S. crypto
672 embargo. It requires special client support, and Exim is probably the
673 only MTA that supported it -- and would never use it because real RSA is
674 always available. This code has been removed, because it had the bad
675 effect of slowing Exim down by computing (never used) parameters for the
676 RSA_EXPORT functionality.
677
7befa435
PH
678PH/21 On the advice of Timo Sirainen, added a check to the dovecot
679 authenticator to fail if there's a tab character in the incoming data
680 (there should never be unless someone is messing about, as it's supposed
681 to be base64-encoded). Also added, on Timo's advice, the "secured" option
682 if the connection is using TLS or if the remote IP is the same as the
683 local IP, and the "valid-client-cert option" if a client certificate has
684 been verified.
685
48da4259 686PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
687 authenticators. This can be used for authorization after authentication
688 succeeds. (In the case of plaintext, it servers for both authentication
689 and authorization.)
690
48da4259
PH
691PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
692 if any retry times were supplied.
693
d1d5595c
PH
694PH/24 Exim crashed if verify=helo was activated during an incoming -bs
695 connection, where there is no client IP address to check. In this
696 situation, the verify now always succeeds.
697
0ef732d9
PH
698PH/25 Applied John Jetmore's -Mset patch.
699
328895cc
PH
700PH/26 Added -bem to be like -Mset, but loading a message from a file.
701
fd700877
PH
702PH/27 In a string expansion for a processed (not raw) header when multiple
703 headers of the same name were present, leading whitespace was being
704 removed from all of them, but trailing whitespace was being removed only
705 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
706 before concatenation. Completely empty headers in a concatenation (as
707 before) are ignored.
fd700877 708
8dce1a6f
PH
709PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
710 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
711
17af4a17
PH
712PH/29 [Removed. This was a change that I later backed out, and forgot to
713 correct the ChangeLog entry (that I had efficiently created) before
714 committing the later change.]
f6c332bd
PH
715
716PH/30 Exim was sometimes attempting to deliver messages that had suffered
717 address errors (4xx response to RCPT) over the same connection as other
718 messages routed to the same hosts. Such deliveries are always "forced",
719 so retry times are not inspected. This resulted in far too many retries
720 for the affected addresses. The effect occurred only when there were more
721 hosts than the hosts_max_try setting in the smtp transport when it had
722 the 4xx errors. Those hosts that it had tried were not added to the list
723 of hosts for which the message was waiting, so if all were tried, there
724 was no problem. Two fixes have been applied:
725
726 (i) If there are any address or message errors in an SMTP delivery, none
727 of the hosts (tried or untried) are now added to the list of hosts
728 for which the message is waiting, so the message should not be a
729 candidate for sending over the same connection that was used for a
730 successful delivery of some other message. This seems entirely
731 reasonable: after all the message is NOT "waiting for some host".
732 This is so "obvious" that I'm not sure why it wasn't done
733 previously. Hope I haven't missed anything, but it can't do any
734 harm, as the worst effect is to miss an optimization.
735
736 (ii) If, despite (i), such a delivery is accidentally attempted, the
737 routing retry time is respected, so at least it doesn't keep
738 hammering the server.
739
c1114884
PH
740PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
741 in ${readsocket because some servers need this prod.
742
7a0743eb
PH
743PH/32 Added some extra debug output when updating a wait-xxx database.
744
0d85fa3f
PH
745PH/33 The hint "could be header name not terminated by colon", which has been
746 given for certain expansion errors for a long time, was not being given
747 for the ${if def:h_colon_omitted{... case.
748
1bf43b78
PH
749PH/34 The spec says: "With one important exception, whenever a domain list is
750 being scanned, $domain contains the subject domain." There was at least
751 one case where this was not true.
752
520de300
PH
753PH/35 The error "getsockname() failed: connection reset by peer" was being
754 written to the panic log as well as the main log, but it isn't really
755 panic-worthy as it just means the connection died rather early on. I have
756 removed the panic log writing for the ECONNRESET error when getsockname()
757 fails.
758
48c7f9e2
PH
759PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
760 runs only) independently of the message's sender address. This meant
761 that, if the 4xx error was in fact related to the sender, a different
762 message to the same recipient with a different sender could confuse
763 things. In particualar, this can happen when sending to a greylisting
764 server, but other circumstances could also provoke similar problems.
765 I have changed the default so that the retry time for these errors is now
766 based a combination of the sender and recipient addresses. This change
767 can be overridden by setting address_retry_include_sender=false in the
768 smtp transport.
769
99ea1c86
PH
770PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
771 remote server are returned as part of bounce messages. This was not
772 happening for LMTP over a pipe (the lmtp transport), but now it is the
773 same for both kinds of LMTP.
774
a2042e78
PH
775PH/38 Despite being documented as not happening, Exim was rewriting addresses
776 in header lines that were in fact CNAMEs. This is no longer the case.
777
4fbcfc2e
PH
778PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
779 and queue runs started by the daemon processed all messages. This has
780 been fixed so that -R and -S can now usefully be given with -q<time>.
781
aa41d2de
PH
782PH/40 Import PCRE release 6.7 (fixes some bugs).
783
af561417
PH
784PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
785
3cc66b45
PH
786PH/42 Give an error if -q is specified more than once.
787
194cc0e4
PH
788PH/43 Renamed the variables $interface_address and $interface_port as
789 $received_ip_address and $received_port, to make it clear that these
790 values apply to message reception, and not to the outgoing interface when
791 a message is delivered. (The old names remain recognized, of course.)
792
a401ddaa
PH
793PH/44 There was no timeout on the connect() call when using a Unix domain
794 socket in the ${readsocket expansion. There now is.
795
4e88a19f
PH
796PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
797 be meaningful with "accept".
798
d7d7b289
SC
799SC/01 Eximstats V1.43
800 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
801
802SC/02 Eximstats V1.44
803 Use a glob alias rather than an array ref in the generated
804 parser. This improves both readability and performance.
805
806SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
807 Collect SpamAssassin and rejection statistics.
808 Don't display local sender or destination tables unless
809 there is data to show.
810 Added average volumes into the top table text output.
811
812SC/04 Eximstats V1.46
813 Collect data on the number of addresses (recipients)
814 as well as the number of messages.
815
816SC/05 Eximstats V1.47
817 Added 'Message too big' to the list of mail rejection
818 reasons (thanks to Marco Gaiarin).
819
820SC/06 Eximstats V1.48
821 Mainlog lines which have GMT offsets and are too short to
822 have a flag are now skipped.
823
824SC/07 Eximstats V1.49 (Alain Williams)
825 Added the -emptyok flag.
826
827SC/08 Eximstats V1.50
828 Fixes for obtaining the IP address from reject messages.
829
0ea2a468
JJ
830JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
831 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
832 whitesspace changes from 4.64-PH/27
833
834JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
835 match 4.64-PH/13
836
837JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
838 are found, allow negative numbers in numeric criteria)
839
840JJ/06 exipick.20061117.2, added new $message_body_missing variable
841
842JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
843 to match changes made in 4.64-PH/43
844
8a10f5a4
PH
845PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
846
30e18802
PH
847PH/47 Put in an explicit test for a DNS lookup of an address record where the
848 "domain" is actually an IP address, and force a failure. This locks out
849 those revolvers/nameservers that support "A-for-A" lookups, in
850 contravention of the specifications.
851
55728a4f
PH
852PH/48 When a host name was looked up from an IP address, and the subsequent
853 forward lookup of the name timed out, the host name was left in
854 $sender_host_name, contrary to the specification.
d7d7b289 855
d7837193
PH
856PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
857 restricted to single-key lookups, Exim was not diagnosing an error if
858 * or *@ was used with a query-style lookup.
859
87054a31
PH
860PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
861
ea2c01d2
MH
862MH/01 local_scan ABI version incremented to 1.1. It should have been updated
863 long ago, but noone interested enough thought of it. Let's just say that
864 the "1.1" means that there are some new functions that weren't there at
865 some point in the past.
866
e4fa6968
PH
867PH/51 Error processing for expansion failure of helo_data from an smtp
868 transport during callout processing was broken.
869
56f5d9bd
PH
870PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
871 tested/used via the -bh/-bhc/-bs options.
872
922e1c28
PH
873PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
874 bug, fixed in subsequent PCRE releases).
875
21eb6e72
PH
876PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
877 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
878
a0540757
PH
879PH/55 Check for a ridiculously long file name in exim_dbmbuild.
880
944e9e9c 881
478be7b0
SC
882Exim version 4.63
883-----------------
884
885SC/01 Use a glob alias rather than an array ref in eximstats generated
886 parser. This improves both readability and performance.
887
888SC/02 Collect SpamAssassin and rejection statistics in eximstats.
889 Don't display local sender or destination tables in eximstats unless
890 there is data to show.
891 Added average volumes into the eximstats top table text output.
892
893SC/03 Collect data on the number of addresses (recipients) as well
894 as the number of messages in eximstats.
895
2b965a65
TF
896TF/01 Correct an error in the documentation for the redirect router. Exim
897 does (usually) call initgroups() when daemonizing.
478be7b0 898
45b91596
PH
899TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
900 with consistent privilege compared to when running as a daemon.
478be7b0 901
c59f5781
TF
902TF/03 Note in the spec that $authenticated_id is not set for local
903 submissions from trusted users.
904
90fc3069
TF
905TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
906 Thanks to Dean Brooks <dean@iglou.com> for the patch.
907
6083aca0
TF
908TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
909 by adding some example configuration directives to the default
910 configuration file. A little bit of work is required to uncomment the
911 directives and define how usernames and passwords are checked, but
912 there is now a framework to start from.
913
765b530f
PH
914PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
915 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
916 without this. I don't know how relevant this is to other LDAP libraries.
917
4e167a8c
PH
918PH/02 Add the verb name to the "unknown ACL verb" error.
919
4608d683
PH
920PH/03 Magnus Holmgren's patch for filter_prepend_home.
921
b8dc3e4a
PH
922PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
923
5418e93b
PH
924PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
925 directory not expanded when it should be if an expanded home directory
926 was set for the address (which is overridden by the transport).
927
b4a9bda2
PH
928PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
929 libradius.
930
45b91596
PH
931PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
932 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
933 because it is too late at that time, and has no effect.
934
5547e2c5
PH
935PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
936 security issue with \' (bugzilla #107). I could not use the
937 PQescapeStringConn() function, because it needs a PGconn value as one of
938 its arguments.
939
dbcef0ea
PH
940PH/08 When testing addresses using -bt, indicate those final addresses that
941 are duplicates that would not cause an additional delivery. At least one
942 person was confused, thinking that -bt output corresponded to deliveries.
943 (Suppressing duplicates isn't a good idea as you lose the information
944 about possibly different redirections that led to the duplicates.)
945
25257489
PH
946PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
947 systems where poll() doesn't work, in particular OS X.
948
c816d124
PH
949PH/10 Added more information to debugging output for retry time not reached.
950
a9ccd69a
PH
951PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
952 operations in malware.c.
953
75fa1910
PH
954PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
955 signatures.
956
a7d7aa58
PH
957PH/13 If write_rejectlog was set false when logging was sent to syslog with
958 syslog_duplication set false, log lines that would normally be written
959 both the the main log and to the reject log were not written to syslog at
960 all.
961
42119b09
PH
962PH/14 In the default configuration, change the use of "message" in ACL warn
963 statements to "add_header".
964
41609df5
PH
965PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
966 not followed by a command (e.g. "seen endif").
967
a5bd321b
PH
968PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
969 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
970 latter.
971
e85a7ad5 972PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
973 so that it is now:
974
e85a7ad5
PH
975 ${if or { \
976 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
977 { match{$h_precedence:}{(?i)bulk|list|junk} } \
978 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
979 }{no}{yes}}
980
e85a7ad5
PH
981 The Auto-Submitted: and various List- headers are standardised, whereas I
982 don't think Precedence: ever was.
5dff5817 983
d8fe1c03
PH
984PH/18 Refactored debugging code in route_finduser() to show more information,
985 in particular, the error code if getpwnam() issues one.
986
16282d2b
PH
987PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
988 This is apparently needed in addition to the PH/07 change above to avoid
989 any possible encoding problems.
990
35d40a98
PH
991PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
992 but not after initializing Perl.
993
034d99ab
PH
994PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
995 output them only if debugging. By default they are written stderr,
996 apparently, which is not desirable.
997
6ec97b1b
PH
998PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
999 queries.
1000
e22ca4ac
JJ
1001JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1002 --not options
1003
1004JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1005
33d73e3b
PH
1006PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1007 authenticated or an ident call has been made. Suppress the default
1008 values for $authenticated_id and $authenticated_sender (but permit -oMai
1009 and -oMas) when testing with -bh.
1010
9ecb03f3
PH
1011PH/24 Re-jigged the order of the tests in the default configuration so that the
1012 tests for valid domains and recipients precede the DNS black list and CSA
1013 tests, on the grounds that those ones are more expensive.
1014
084efe8d
PH
1015PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1016 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1017 This bug exists in every version of Exim that I still have, right back to
1018 0.12.
1019
366fc9f0
PH
1020PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1021 However, an attempt to turn on case-sensitivity in a regex key by
1022 including (?-i) didn't work because the subject string was already
1023 lowercased, and the effects were non-intuitive. It turns out that a
1024 one-line patch can be used to allow (?-i) to work as expected.
1025
c59f5781 1026
c887c79e
TF
1027Exim version 4.62
1028-----------------
1029
1030TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1031 other effects) broke the use of negated acl sub-conditions.
1032
1cce3af8
PH
1033PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1034 patch).
1035
afb3eaaf
PH
1036PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1037 "Deny" causes Exim to reject the incoming connection with a 554 error.
1038 Unfortunately, if there is a major crisis, such as a disk failure,
1039 tcp-wrappers gives "deny", whereas what one would like would be some
1040 kind of temporary error. A kludge has been added to help with this.
1041 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1042 554 error is used if errno is still zero or contains ENOENT (which occurs
1043 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1044 451 error is used.
1045
e173618b
PH
1046PH/03 Add -lutil to the default FreeBSD LIBS setting.
1047
dd16e114
PH
1048PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1049 errors. Otherwise a message that provokes a temporary error (when other
1050 messages do not) can cause a whole host to time out.
1051
f7fd3850
PH
1052PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1053 addresses were routed directly to files or pipes from a redirect router.
1054 File deliveries just didn't batch; pipe deliveries might have suffered
1055 odd errors.
1056
d87df92c
PH
1057PH/06 A failure to get a lock for a hints database would erroneously always say
1058 "Failed to get write lock", even when it was really a read lock.
1059
7e9f683d
PH
1060PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1061 of 0600. This has been changed to use the value of the lockfile_mode
1062 option (which defaults to 0600).
1063
bfad5236
PH
1064PH/08 Applied small patch from the Sieve maintainer.
1065
01c490df
PH
1066PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1067 folder from quota calculations, a direct delivery into this folder messed
1068 up the contents of the maildirsize file. This was because the regex was
1069 used only to exclude .Trash (or whatever) when the size of the mailbox
1070 was calculated. There was no check that a delivery was happening into an
1071 excluded directory. This bug has been fixed by ignoring all quota
1072 processing for deliveries into excluded directories.
1073
d6629cdc
PH
1074PH/10 Added the maildirfolder_create_regex option to appendfile.
1075
1cce3af8 1076
214e2000
PH
1077Exim version 4.61
1078-----------------
1079
1080PH/01 The code for finding all the local interface addresses on a FreeBSD
1081 system running IPv6 was broken. This may well have applied to all BSD
1082 systems, as well as to others that have similar system calls. The broken
1083 code found IPv4 interfaces correctly, but gave incorrect values for the
1084 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1085 that it would not match correctly against @[] and not recognize the IPv6
1086 addresses as local.
1087
f9daeae0
PH
1088PH/02 The ipliteral router was not recognizing addresses of the form user@
1089 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1090
7e66e54d
PH
1091PH/03 Added disable_ipv6.
1092
c8ea1597
PH
1093PH/04 Changed $reply_address to use the raw form of the headers instead of the
1094 decoded form, because it is most often used to construct To: headers
1095 lines in autoreplies, and the decoded form may well be syntactically
1096 invalid. However, $reply_address has leading white space removed, and all
1097 newlines turned into spaces so that the autoreply transport does not
1098 grumble.
1099
911f6fde
PH
1100PH/05 If group was specified without a user on a router, and no group or user
1101 was specified on a transport, the group from the router was ignored.
1102
47ca6d6c
PH
1103PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1104 for visible compile-time settings that can be used to change these
1105 numbers, for those that want even more. Backwards compatibility with old
1106 spool files has been maintained. However, going back to a previous Exim
1107 release will lost any variables that are in spool files.
1108
ed0e9820
PH
1109PH/07 Two small changes when running in the test harness: increase delay when
1110 passing a TCP/IP connection to a new process, in case the original
1111 process has to generate a bounce, and remove special handling of
1112 127.0.0.2 (sic), which is no longer necessary.
1113
eff37e47
PH
1114PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1115 be the same on different OS.
1116
1921d2ea
PH
1117PH/09 Moved a debug statement in filter processing to avoid a race problem when
1118 testing.
1119
b3f69ca8
JJ
1120JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1121 whether --show-vars was specified or not
1122
1123JJ/02 exipick: Added support for new ACL variable spool format introduced
1124 in 4.61-PH/06
1125
424a1c63
PH
1126PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1127 syntactically invalid From: or Reply-to: line, and a filter used this to
1128 generate an autoreply, and therefore failed to obtain an address for the
1129 autoreply, Exim could try to deliver to a non-existent relative file
1130 name, causing unrelated and misleading errors. What now happens is that
1131 it logs this as a hard delivery error, but does not attempt to create a
1132 bounce message.
1133
7a100415
PH
1134PH/11 The exinext utility has a -C option for testing purposes, but although
1135 the given file was scanned by exinext itself; it wasn't being passed on
1136 when Exim was called.
1137
19b9dc85
PH
1138PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1139 an end-of-file indication when reading a command response.
1140
309bd837
PH
1141PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1142 compiled. In many other places in Exim, IPv6 addresses are always
1143 recognized, so I have changed this. It also means that IPv4 domain
1144 literals of the form [IPV4:n.n.n.n] are now always recognized.
1145
59e82a2a
PH
1146PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1147 used if the router is not running as root, for example, when verifying at
1148 ACL time, or when using -bh. The debugging output from this situation was
1149 non-existent - all you got was a failure to exec. I have made two
1150 changes:
1151
1152 (a) Failures to set uid/gid, the current directory, or a process leader
1153 in a subprocess such as that created by queryprogram now generate
1154 suitable debugging ouput when -d is set.
1155
1156 (b) The queryprogram router detects when it is not running as root,
1157 outputs suitable debugging information if -d is set, and then runs
1158 the subprocess without attempting to change uid/gid.
1159
9edc04ce
PH
1160PH/15 Minor change to Makefile for building test_host (undocumented testing
1161 feature).
1162
1349e1e5
PH
1163PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1164 additional section of a DNS packet that returns MX or SRV records.
1165 Instead, it always explicitly searches for A/AAAA records. This avoids
1166 major problems that occur when a DNS server includes only records of one
1167 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1168 fixed another bug: if SRV records were looked up and the corresponding
1169 address records were *not* found in the additional section, the port
1170 values from the SRV records were lost.
1171
ea49d0e1
PH
1172PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1173 using the correct key (the original address) when searching the retry
1174 rules in order to find which one to use for generating the retry hint.
1175
064a94c9
PH
1176PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1177 adding the default one. Similarly, if it contains a Reply-To: header, the
1178 errors_reply_to option, if set, is not used.
1179
727071f8
PH
1180PH/19 When calculating a retry time, Exim used to measure the "time since
1181 failure" by looking at the "first failed" field in the retry record. Now
1182 it does not use this if it is later than than the arrival time of the
1183 message. Instead it uses the arrival time. This makes for better
1184 behaviour in cases where some deliveries succeed, thus re-setting the
1185 "first failed" field. An example is a quota failure for a huge message
1186 when small messages continue to be delivered. Without this change, the
1187 "time since failure" will always be short, possible causing more frequent
1188 delivery attempts for the huge message than are intended.
dd16e114 1189 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1190
f78eb7c6
PH
1191PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1192 $1, $2, $3) because the numerical variables can be reset during some
1193 expansion items (e.g. "match"), thereby losing the authentication data.
1194
21c28500
PH
1195PH/21 Make -bV show the size of off_t variables so that the test suite can
1196 decide whether to run tests for quotas > 2G.
1197
1198PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1199 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1200 filecount value is greater than 2G or if a quota value is greater than 2G
1201 on a system where the size of off_t is not greater than 4, a panic error
1202 is given.
1203
1688f43b
PH
1204PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1205 never match. The debug and -bh output now contains an explicit error
1206 message indicating a malformed IPv4 address or mask.
1207
1208PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1209 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1210 PH/23 above applies.
1211
9675b384
PH
1212PH/25 Do not write to syslog when running in the test harness. The only
1213 occasion when this arises is a failure to open the main or panic logs
1214 (for which there is an explicit test).
1215
6a3f1455
PH
1216PH/26 Added the /no_tell option to "control=freeze".
1217
dac79d3e
PH
1218PH/27 If a host name lookup failed very early in a connection, for example, if
1219 the IP address matched host_lookup and the reverse lookup yielded a name
1220 that did not have a forward lookup, an error message of the form "no IP
1221 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1222 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1223
5977a0b3
PH
1224PH/28 An enabling patch from MH: add new function child_open_exim2() which
1225 allows the sender and the authenticated sender to be set when
1226 submitting a message from within Exim. Since child_open_exim() is
1227 documented for local_scan(), the new function should be too.
1228
c91535f3
PH
1229PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1230 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1231 results in an empty string is now treated as unset.
1232
0d46a8c8
PH
1233PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1234
278c6e6c
PH
1235PH/31 Added sender_verify_fail logging option.
1236
2cbb4081
PH
1237PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1238 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1239 tidied the source and removed it altogether.
1240
3eef829e
PH
1241PH/33 When a queue run was abandoned because the load average was too high, a
1242 log line was always written; now it is written only if the queue_run log
1243 selector is set. In addition, the log line for abandonment now contains
1244 information about the queue run such as the pid. This is always present
1245 in "start" and "stop" lines but was omitted from the "abandon" line.
1246
1ab95fa6
PH
1247PH/34 Omit spaces between a header name and the colon in the error message that
1248 is given when verify = headers_syntax fails (if there are lots of them,
1249 the message gets confusing).
1250
230205fc
PH
1251PH/35 Change the default for dns_check_names_pattern to allow slashes within
1252 names, as there are now some PTR records that contain slashes. This check
1253 is only to protect against broken name servers that fall over on strange
1254 characters, so the fact that it applies to all lookups doesn't matter.
1255
75e0e026
PH
1256PH/36 Now that the new test suite is complete, we can remove some of the
1257 special code in Exim that was needed for the old test suite. For example,
1258 sorting DNS records because real resolvers return them in an arbitrary
1259 order. The new test suite's fake resolver always returns records in the
1260 same order.
1261
1262PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1263 bounces) except when queue_only is set, to avoid logging races between
1264 the different processes.
1265
145396a6
PH
1266PH/38 Panic-die if .include specifies a non-absolute path.
1267
3cd34f13
PH
1268PH/39 A tweak to the "H" retry rule from its user.
1269
11121d3d
JJ
1270JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1271 a label. They prevented compilation on older perls.
1272
1273JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1274 a warning to be raised on newish perls.
1275
1276JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1277 on queue. Changes to match documented behaviour of showing count of
1278 messages matching specified criteria.
1279
8def5aaf
PH
1280PH/40 Changed the default ident timeout from 30s to 5s.
1281
929ba01c
PH
1282PH/41 Added support for the use of login_cap features, on those BSD systems
1283 that have them, for controlling the resources used by pipe deliveries.
1284
2632889e
PH
1285PH/42 The content-scanning code uses fopen() to create files in which to put
1286 message data. Previously it was not paying any attention to the mode of
1287 the files. Exim runs with umask(0) because the rest of the code creates
1288 files with open(), and sets the required mode explicitly. Thus, these
1289 files were ending up world-writeable. This was not a big issue, because,
1290 being within the spool directory, they were not world-accessible. I have
1291 created a function called modefopen, which takes an additional mode
1292 argument. It sets umask(777), creates the file, chmods it to the required
1293 mode, then resets the umask. All the relevant calls to fopen() in the
1294 content scanning code have been changed to use this function.
1295
944a9c55
PH
1296PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1297 to 24 hours. This avoids potential overflow problems when processing G
1298 and H retry rules. I suspect nobody ever tinkers with this value.
1299
4a23603b
PH
1300PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1301
4730f942
PH
1302PH/45 When the plaintext authenticator is running as a client, the server's
1303 challenges are checked to ensure they are valid base64 strings. By
1304 default, the authentication attempt is cancelled if an invalid string is
1305 received. Setting client_ignore_invalid_base64 true ignores these errors.
1306 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1307 they are received. Thus, the responses can be made to depend on the
1308 challenges. If an invalid string is ignored, an empty string is placed in
1309 the variable.
1310
30dba1e6
PH
1311PH/46 Messages that are created by the autoreply transport now contains a
1312 References: header, in accordance with RFCs 2822 and 3834.
1313
382afc6b
PH
1314PH/47 Added authenticated_sender_force to the smtp transport.
1315
a86229cf
PH
1316PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1317
50c99ba6
PH
1318PH/49 Installed latest patch from the Sieve maintainer.
1319
d35e429d
PH
1320PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1321 was also set, the appendfile transport was unnecessarily scanning a
1322 directory of message files (e.g. for maildir delivery) to find the count
1323 of files (along with the size), even though it did not need this
1324 information. It now does the scan only if it needs to find either the
1325 size of the count of files.
1326
f90d018c
PH
1327PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1328
75def545
PH
1329PH/52 Two bugs concerned with error handling when the smtp transport is
1330 used in LMTP mode:
1331
1332 (i) Exim was not creating retry information for temporary errors given
1333 for individual recipients after the DATA command when the smtp transport
1334 was used in LMTP mode. This meant that they could be retried too
1335 frequently, and not timed out correctly.
1336
1337 (ii) Exim was setting the flag that allows error details to be returned
1338 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1339 recipients that were returned after the DATA command.
1340
1341PH/53 This is related to PH/52, but is more general: for any failing address,
1342 when detailed error information was permitted to be returned to the
1343 sender, but the error was temporary, then after the final timeout, only
1344 "retry timeout exceeded" was returned. Now it returns the full error as
1345 well as "retry timeout exceeded".
1346
c46782ef
PH
1347PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1348 do this, and (what is worse) MTAs that accept it.
1349
71fafd95
PH
1350PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1351 will now be deprecated.
1352
2c5db4fd
PH
1353PH/56 New os.c-cygwin from the Cygwin maintainer.
1354
9cf6b11a
JJ
1355JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1356 formats (previously only available in exim formats via -bpr, -bpru,
1357 and -bpra. Now also available in native and exiqgrep formats)
1358
1359JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1360 with very large, slow to parse queues
1361
1362JJ/08 exipick: added ! as generic prefix to negate any criteria format
1363
1364JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1365
898d150f
PH
1366PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1367 responses to authentication challenges, though it was showing the
1368 challenges; (ii) I've removed the CR characters from the debug output for
1369 SMTP output lines.
1370
46218253
PH
1371PH/58 Allow for the insertion of a newline as well as a space when a string
1372 is turned into more than one encoded-word during RFC 2047 encoding. The
1373 Sieve code now uses this.
1374
e97957bc
PH
1375PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1376 data_4xx, lost_connection, tls_required.
1377
81e509d7
PH
1378PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1379 message was being sent as an SMTP response.
1380
3d240ff7
PH
1381PH/61 Add -l and -k options to exicyclog.
1382
b37c4101
PH
1383PH/62 When verifying, if an address was redirected to one new address, so that
1384 verification continued, and the new address failed or deferred after
1385 having set something in $address_data, the value of $address_data was not
1386 passed back to the ACL. This was different to the case when no
1387 redirection occurred. The value is now passed back in both cases.
1388
79378e0f
PH
1389PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1390 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1391 use login_cap.h, so on its own it isn't the distinguishing feature. The
1392 new name refers directly to the setclassresources() function.
1393
e49c7bb4
PH
1394PH/65 Added configuration files for NetBSD3.
1395
d114ec46
PH
1396PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1397
f3d7df6c
PH
1398PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1399 is preferred over IPv4.
1400
715ab376
PH
1401PH/68 The bounce_return_message and bounce_return_body options were not being
1402 honoured for bounces generated during the reception of non-SMTP messages.
1403 In particular, this applied to messages rejected by the ACL. This bug has
1404 been fixed. However, if bounce_return_message is true and bounce_return_
1405 body is false, the headers that are returned for a non-SMTP message
1406 include only those that have been read before the error was detected.
1407 (In the case of an ACL rejection, they have all been read.)
1408
6b31b150
PH
1409PH/69 The HTML version of the specification is now built in a directory called
1410 spec_html instead of spec.html, because the latter looks like a path with
1411 a MIME-type, and this confuses some software.
1412
1413PH/70 Catch two compiler warnings in sieve.c.
1414
d515a917
PH
1415PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1416 function verify_get_ident() calls ip_connect() to connect a socket, but
1417 if the "connect()" function timed out, ip_connect() used to close the
1418 socket. However, verify_get_ident() also closes the socket later, and in
1419 between Exim writes to the log, which may get opened at this point. When
1420 the socket was closed in ip_connect(), the log could get the same file
1421 descriptor number as the socket. This naturally causes chaos. The fix is
1422 not to close the socket in ip_connect(); the socket should be closed by
1423 the function that creates it. There was only one place in the code where
1424 this was missing, in the iplookup router, which I don't think anybody now
1425 uses, but I've fixed it anyway.
1426
9b8fadde
PH
1427PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1428 well as to direct DNS lookups. Otherwise the handling of names in host
1429 lists is inconsistent and therefore confusing.
1430
214e2000 1431
5de37277
PH
1432Exim version 4.60
1433-----------------
1434
cc38ddbf
PH
1435PH/01 Two changes to the default runtime configuration:
1436
1437 (1) Move the checks for relay_from_hosts and authenticated clients from
1438 after to before the (commented out) DNS black list checks.
1439
1440 (2) Add control=submission to the relay_from_hosts and authenticated
1441 clients checks, on the grounds that messages accepted by these
1442 statements are most likely to be submissions.
5de37277 1443
72fdd6ae
PH
1444PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1445
1446 (1) Generate an error if the third argument for the ${prvs expansion is
1447 not a single digit.
1448
1449 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1450 string.
1451
1452 (3) Reset the variables that are obtained from the first argument of
1453 ${prvscheck and used in the second argument before leaving the code,
1454 because their memory is reclaimed, so using them afterwards may do
1455 silly things.
1456
1457 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1458 one (it's much easier than Tom thought :-).
1459
1460 (5) Because of (4), we can now allow for the use of $prvscheck_result
1461 inside the third argument.
cb9328de 1462
cb741023
PH
1463PH/03 For some reason, the default setting of PATH when running a command from
1464 a pipe transport was just "/usr/bin". I have changed it to
1465 "/bin:/usr/bin".
1466
f174f16e
PH
1467PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1468 anything to be listed in the output from -bV.
b2f5a032 1469
c25242d7
PH
1470PH/05 When a filter generated an autoreply, the entire To: header line was
1471 quoted in the delivery log line, like this:
1472
1473 => >A.N.Other <ano@some.domain> <original@ddress> ...
1474
1475 This has been changed so that it extracts the operative address. There
1476 may be more than one such address. If so, they are comma-separated, like
1477 this:
1478
1479 => >ano@some.domain,ona@other.domain <original@ddress> ...
1480
82c19f95
PH
1481PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1482 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1483 not being looked up in the rDNS to get a host name, Exim was showing the
1484 IP address twice in Received: lines, even though the IP addresses were
1485 identical. For example:
1486
1487 Received: from [1.2.3.4] (helo=[1.2.3.4])
1488
1489 However, if the real host name was known, it was omitting the HELO data
1490 if it matched the actual IP address. This has been tidied up so that it
1491 doesn't show the same IP address twice.
1492
d7ffbc12
PH
1493PH/07 When both +timestamp and +memory debugging was on, the value given by
1494 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1495 called by the debug printing, thereby overwriting the timestamp buffer.
1496 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1497
9f526266
PH
1498PH/08 When the original message was included in an autoreply transport, it
1499 always said "this is a copy of the message, including all the headers",
1500 even if body_only or headers_only was set. It now gives an appropriate
1501 message.
1502
87fcc8b9
PH
1503PH/09 Applied a patch from the Sieve maintainer which:
1504
1505 o fixes some comments
1506 o adds the (disabled) notify extension core
1507 o adds some debug output for the result of if/elsif tests
1508 o points to the current vacation draft in the documentation
1509 and documents the missing references header update
1510
1511 and most important:
1512
1513 o fixes a bug in processing the envelope test (when testing
1514 multiple envelope elements, the last element determinted the
1515 result)
1516
456682f5
PH
1517PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1518 Electronic Mail") by including:
1519
1520 Auto-submitted: auto-generated
1521
1522 in the messages that it generates (bounce messages and others, such as
1523 warnings). In the case of bounce messages for non-SMTP mesages, there was
1524 also a typo: it was using "Auto_submitted" (underscore instead of
1525 hyphen). Since every message generated by Exim is necessarily in response
1526 to another message, thes have all been changed to:
1527
1528 Auto-Submitted: auto-replied
1529
1530 in accordance with these statements in the RFC:
1531
1532 The auto-replied keyword:
1533
1534 - SHOULD be used on messages sent in direct response to another
1535 message by an automatic process,
1536
1537 - MUST NOT be used on manually-generated messages,
1538
1539 - MAY be used on Delivery Status Notifications (DSNs) and Message
1540 Disposition Notifications (MDNs),
1541
1542 - MUST NOT be used on messages generated by automatic or periodic
1543 processes, except for messages which are automatic responses to
1544 other messages.
1545
3e46c1aa
PH
1546PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1547 to the default Received: header definition.
456682f5 1548
49826d12
PH
1549PH/12 Added log selector acl_warn_skipped (default on).
1550
eba0c039
PH
1551PH/13 After a successful wildlsearch lookup, discard the values of numeric
1552 variables because (a) they are in the wrong storage pool and (b) even if
1553 they were copied, it wouldn't work properly because of the caching.
1554
a0d6ba8a
PH
1555PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1556 checking when decoding. Apparently there are clients that generate
1557 overlong encoded strings. Why am I not surprised?
1558
f0917727
PH
1559PH/15 If the first argument of "${if match_address" was not empty, but did not
1560 contain an "@" character, Exim crashed. Now it writes a panic log message
1561 and treats the condition as false.
1562
096fee00
PH
1563PH/16 In autoreply, treat an empty string for "once" the same as unset.
1564
024bd3c2
PH
1565PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1566 extension "envelope-auth". The code is finished and in agreement with
1567 other implementations, but there is no documentation so far and in fact,
1568 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1569 not changing the active code.
1570
1571 Print executed "if" and "elsif" statements when debugging is used. This
1572 helps a great deal to understand what a filter does.
1573
1574 Document more things not specified clearly in RFC3028. I had all this
1575 sorted out, when out of a sudden new issues came to my mind. Oops."
1576
df199fec
PH
1577PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1578 (Bugzilla #53).
1579
d27f1df3
PH
1580PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1581 canonical form (as documented). However, after a host name lookup from
1582 the IP address, check_host() was doing a simple string comparison with
1583 addresses acquired from the DNS when checking that the found name did
1584 have the original IP as one of its addresses. Since any found IPv6
1585 addresses are likely to be in abbreviated form, the comparison could
1586 fail. Luckily, there already exists a function for doing the comparison
1587 by converting both addresses to binary, so now that is used instead of
1588 the text comparison.
1589
96776534
PH
1590PH/20 There was another similar case to PH/19, when a complete host name was
1591 given in a host list; looking up its IP address could give an abbreviated
1592 form, whereas the current host's name might or might not be abbreviated.
1593 The same fix has been applied.
1594
5de37277 1595
9a799bc0
PH
1596Exim version 4.54
1597-----------------
1598
1599PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1600 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1601 It now does.
1602
99a4b039
PH
1603PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1604 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1605
1606PH/03 Typo: missing ".o" in src/pcre/Makefile.
1607
4b233853
PH
1608PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1609 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1610 Also, for "Auto-Submitted", treat anything other than "no" as
1611 non-personal, in accordance with RFC 3834. (Previously it treated
1612 anything starting "auto-" as non-personal.)
1613
8857ccfd
PH
1614TF/01 The control=submission/name=... option had a problem with syntax
1615 errors if the name included a slash character. The /name= option
1616 now slurps the rest of the string, so it can include any characters
1617 but it must come last in the list of options (after /sender_retain
1618 or /domain=).
1619
433a2980
PH
1620PH/05 Some modifications to the interface to the fake nameserver for the new
1621 testing suite.
1622
3e46c1aa 1623
9a799bc0 1624
e3a311ba
TK
1625Exim version 4.53
1626-----------------
1627
1628TK/01 Added the "success_on_redirect" address verification option. See
1629 NewStuff for rationale and an example.
1630
13b685f9
PH
1631PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1632
395ff96d
PH
1633PH/02 Patch to exigrep to allow it to work on syslog lines.
1634
5b68f6e4
PH
1635PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1636 fread() to skip over the body file's header line, because in Cygwin the
1637 header line is locked and is inaccessible.
1638
1ab52c69
PH
1639PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1640 co-exist for some time) to make it clear that it is the Exim ID that is
1641 referenced, not the Message-ID: header line.
1642
b07e6aa3
PH
1643PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1644 string_format() function, because snprintf() does not exist on all
1645 operating systems.
1646
254e032f
PH
1647PH/06 The use of forbid_filter_existstest now also locks out the use of the
1648 ${stat: expansion item.
1649
3af76a81
PH
1650PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1651 protocol synchronization error", to keep the pedants happy.
1652
2548ba04
PH
1653PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1654 well as for IRIX systems, when gcc is being used. See the host.c source
1655 file for comments.
1656
b6c6011d
PH
1657PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1658
cf39cf57
PH
1659PH/10 Named domain lists were not working if used in a queue_smtp_domains
1660 setting.
1661
f1513293
PH
1662PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1663 transport and to the smtp transport in LMTP mode.
1664
727549a4
PH
1665TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1666
af46795e
PH
1667PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1668 run a filter in a subprocess. This could lead to confusion in subsequent
1669 lookups in the parent process. There should also be a search_tidyup() at
1670 the end of the subprocess.
1671
d7b47fd0
PH
1672PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1673 only if the host matched helo_try_verify_hosts, which caused the
1674 verification to occur when the EHLO/HELO command was issued. The ACL just
1675 tested the remembered result. Now, if a previous verification attempt has
1676 not happened, "verify = helo" does it there and then.
1677
ee744174
JJ
1678JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1679
b582ab87
PH
1680TK/03 Fix log output including CR from clamd.
1681
41a13e0a
PH
1682PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1683 exist provoked a memory error which could cause a segfault.
1684
f625cc5a
PH
1685PH/15 Installed PCRE 6.2
1686
1687PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1688
21f7af35
PH
1689PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1690 of the problem. Specifically, suggested +O2 rather than +O1 for the
1691 HP-UX compiler.
1692
31480e42
PH
1693PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1694
2d280592
PH
1695PH/20 If a delivery was routed to a non-standard port by means of an SRV
1696 record, the port was not correctly logged when the outgoing_port log
1697 selector was set (it logged the transort's default port).
1698
7cd1141b
PH
1699PH/21 Added support for host-specific ports to manualroute, queryprogram,
1700 fallback_hosts, and "hosts" in the smtp transport.
1701
1702PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1703 host errors such as "Connection refused".
1704
750af86e
PH
1705PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1706 authentication with radiusclient 0.4.9:
1707
1708 - Error returned from rc_read_config was caught wrongly
1709 - Username/password not passed on to radius server due to wrong length.
1710
1711 The presumption is that some radiusclient API changes for 4.51/PH/17
1712 were not taken care of correctly. The code is still untested by me (my
1713 Linux distribution still has 0.3.2 of radiusclient), but it was
1714 contributed by a Radius user.
1715
1716PH/24 When doing a callout, the value of $domain wasn't set correctly when
1717 expanding the "port" option of the smtp transport.
1718
4304270b
TK
1719TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1720 while reading a MIME header. Thanks to Tom Hughes for a patch.
1721
750af86e
PH
1722PH/24 Include config.h inside local_scan.h so that configuration settings are
1723 available.
1724
64ffc24f
PH
1725PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1726 that in an ACL for RCPT (for example), you can examine exactly what was
1727 received.
1728
5dd9625b
PH
1729PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1730 commands, but it was not correctly comparing the address with the actual
1731 client host address. Thus, it would show the EHLO address in Received:
1732 header lines when this was not necessary.
1733
5591031b
PH
1734PH/27 Added the % operator to ${eval:}.
1735
ba18e66a
PH
1736PH/28 Exim tries to create and chdir to its spool directory when it starts;
1737 it should be ignoring failures (because with -C, for example, it has lost
1738 privilege). It wasn't ignoring creation failures other than "already
1739 exists".
1740
9cec981f
PH
1741PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1742 -bV or -d is used.
1743
aa2b5c79
PH
1744PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1745 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1746 too many continuations, the temporary file was not being removed, and the
1747 return code was incorrect.
aa2b5c79 1748
48a53b7f
PH
1749PH/31 Missing "BOOL" in function definition in filtertest.c.
1750
1c59d63b
PH
1751PH/32 Applied Sieve patches from the maintainer.
1752
671012da
TK
1753TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1754
1509d3a8
PH
1755PH/33 Added "verify = not_blind".
1756
1757PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1758 Local/Makefile (with some defaults set). These are used in built scripts
1759 such as exicyclog, but they have never been used in the exim_install
1760 script (though there are many overriding facilities there). I have
1761 arranged that the exim_install script now takes note of these two
1762 settings.
1763
1764PH/35 Installed configuration files for Dragonfly.
1765
2fe1a124
PH
1766PH/36 When a locally submitted message by a trusted user did not contain a
1767 From: header, and the sender address was obtained from -f or from an SMTP
1768 MAIL command, and the trusted user did not use -F to supply a sender
1769 name, $originator_name was incorrectly used when constructing a From:
1770 header. Furthermore, $originator_name was used for submission mode
1771 messages from external hosts without From: headers in a similar way,
1772 which is clearly wrong.
1773
8800895a
PH
1774PH/37 Added control=suppress_local_fixups.
1775
ccfdb010
PH
1776PH/38 When log_selector = +received_sender was set, and the addition of the
1777 sender made the log line's construction buffer exactly full, or one byte
1778 less than full, an overflow happened when the terminating "\n" was
1779 subsequently added.
1780
1130bfb0
PH
1781PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1782 when the result of a list match is failure because a DNS lookup failed.
1783
ebcb507f
PH
1784PH/40 RM_COMMAND is now used in the building process.
1785
c35e155c
PH
1786PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1787 the "build-* directories that it finds.
1788
95d1f782
PH
1789PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1790 address in a domain literal was a prefix of an interface address.
1791
fd6de02e
PH
1792PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1793 when verifying a sender address, unless rewrite_headers is false.
1794
58de37c5
PH
1795PH/44 Wrote a long comment about why errors_to addresses are verified as
1796 recipients, not senders.
1797
261cf466
TF
1798TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1799 the ratelimit ACL was added.
1800
3ee512ff
PH
1801PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1802
e08c430f
PH
1803PH/46 Added extra information about PostgreSQL errors to the error string.
1804
bef5a11f
PH
1805PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1806 avoiding the need to install special zones in a real server. This is
1807 backwards compatible; if it can't find the fake resolver, it drops back.
1808 Thus, both old and new test suites can be run.
1809
7546de58
TF
1810TF/02 Added util/ratelimit.pl
1811
e5d5a95f
TF
1812TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1813 clock is set back in time.
1814
2e88a017
TF
1815TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1816 Candler <B.Candler@pobox.com>.
1817
a5f65aa4
TF
1818TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1819 OK for addresses that are the result of redirections.
1820
e7726cbf
PH
1821PH/48 A number of further additions for the benefit of the new test suite,
1822 including a fake gethostbyname() that interfaces to the fake DNS resolver
1823 (see PH/47 above).
1824
a7fdad5b
TF
1825TF/06 The fix for widen_domains has also been applied to qualify_single and
1826 search_parents which are the other dnslookup options that can cause
1827 header rewrites.
1828
6af56900
PH
1829PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1830 type ("H").
1831
0925ede6
PH
1832PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1833
66afa403
TF
1834TF/07 Exim produced the error message "an SRV record indicated no SMTP
1835 service" if it encountered an MX record with an empty target hostname.
1836 The message is now "an MX or SRV record indicated no SMTP service".
1837
0154e85a
TF
1838TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1839 if the DNS of the sending site is misconfigured. This is quite a
1840 common situation. This change restores the behaviour of treating a
1841 helo verification defer as a failure.
1842
16f12c76
PH
1843PH/51 If self=fail was set on a router, the bounce message did not include the
1844 actual error message.
1845
bbe902f0 1846
e5a9dba6
PH
1847Exim version 4.52
1848-----------------
1849
1850TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1851
22c3b60b
PH
1852PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1853 command itself ended in error, the underlying message about the transport
1854 filter timeout was being overwritten with the pipe command error. Now the
1855 underlying error message should be appended to the second error message.
1856
06a9b4b5
PH
1857TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1858
c1ac6996
PH
1859PH/02 Reduce the amount of output that "make" produces by default. Full output
1860 can still be requested.
1861
9c7a242c
PH
1862PH/03 The warning log line about a condition test deferring for a "warn" verb
1863 was being output only once per connection, rather than after each
1864 occurrence (because it was using the same function as for successful
1865 "warn" verbs). This seems wrong, so I have changed it.
1866
87ba3f5f
PH
1867TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1868 it should not have, which might have caused a crash in the right
1869 circumstances, but probably never did.
1870
1871PH/04 Installed a modified version of Tony Finch's patch to make submission
1872 mode fix the return path as well as the Sender: header line, and to
1873 add a /name= option so that you can make the user's friendly name appear
1874 in the header line.
1875
29aba418
TF
1876TF/03 Added the control = fakedefer ACL modifier.
1877
fe0dab11
TF
1878TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1879 Mark Lowes for thorough testing.
870f6ba8 1880
11d337a4
TK
1881TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1882
1883TK/03 Merged latest SRS patch from Miles Wilton.
1884
415c8f3b
PH
1885PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1886 with the definition in sysexits.h (which is #included earlier).
1887 Fortunately, Exim does not actually use EX_OK. The code used to try to
1888 preserve the sysexits.h value, by assumimg that macro definitions were
1889 scanned for macro replacements. I have been disabused of this notion,
1890 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1891
958541e9
PH
1892PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1893 in the smtp transport. When a block could not be written in a single
1894 write() function, the timeout was being re-applied to each part-write.
1895 This seems wrong - if the receiver was accepting one byte at a time it
1896 would take for ever. The timeout is now adjusted when this happens. It
1897 doesn't have to be particularly precise.
1898
c206415f
TK
1899TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1900 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1901
2a4be8f9
PH
1902PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1903 without a domain if the check to <postmaster@domain> fails.
1904
1cba11c5
SC
1905SC/01 Eximstats: added -xls and the ability to specify output files
1906 (patch written by Frank Heydlauf).
1907
1908SC/02 Eximstats: use FileHandles for outputing results.
1909
1910SC/03 Eximstats: allow any combination of xls, txt, and html output.
1911
1912SC/04 Eximstats: fixed display of large numbers with -nvr option
1913
1914SC/05 Eximstats: fixed merging of reports with empty tables.
1915
1916SC/06 Eximstats: added the -include_original_destination flag
1917
1918SC/07 Eximstats: removed tabs and trailing whitespace.
1919
1005d00e
TK
1920TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1921
1922TK/06 MBOX spool code: Add real "From " MBOX separator line
1923 so the .eml file is really in mbox format (even though
1924 most programs do not really care). Patch from Alex Miller.
1925
1926TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1927 The latter is generated from $received_to and is only set if the
1928 message has one envelope recipient. SA can use these headers,
1929 obviously out-of-the-box. Patch from Alex Miller.
1930
9b4768fa
PH
1931PH/08 The ${def test on a variable was returning false if the variable's
1932 value was "0", contrary to what the specification has always said!
1933 The result should be true unless the variable is empty.
1934
1935PH/09 The syntax error of a character other than { following "${if
1936 def:variable_name" (after optional whitespace) was not being diagnosed.
1937 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1938 accidental colon was present, for example, could give incorrect results.
1939
0d7eb84a
PH
1940PH/10 Tidied the code in a number of places where the st_size field of a stat()
1941 result is used (not including appendfile, where other changes are about
1942 to be made).
1943
1944PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1945 This involved changing a lot of size variables from int to off_t. It
1946 should work with maildirs and everything.
1947
40727bee
TK
1948TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1949 spamd dying while we are connected to it.
1950
554d2369
TF
1951TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1952 <jgh@wizmail.org>
1953
1f922db1
PH
1954PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1955 function for BDB 4.3.
1956
ef213c3b
PH
1957PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1958
8ac170f3
PH
1959PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1960 the sources for PCRE have been re-arranged and more files are now
1961 involved.
1962
b1c749bb
PH
1963PH/15 The code I had for printing potentially long long variables in PH/11
1964 above was not the best (it lost precision). The length of off_t variables
1965 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1966 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1967 to be "long long int" or "long int". This is needed for the internal
1968 formatting function string_vformat().
b1c749bb 1969
4aac9b49
PH
1970PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1971 the configuration file to be ":syslog", then the script "guesses" where
1972 the logs files are, rather than using the compiled in default. In our
1973 case the guess is not the same as the compiled default, so the script
1974 suddenly stopped working when I started to use syslog. The patch checks
1975 to see if log_file_path is "". If so, it attempts to read it from exim
1976 with no configuration file to get the compiled in version, before it
1977 falls back to the previous guessing code."
1978
294520c8
TK
1979TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1980 implementing BATV in an Exim configuration. See NewStuff for the gory
1981 details.
1982
5bd022fe
PH
1983PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1984 Makefile that are specific to HP-UX.
1985
90e9ce59
PH
1986PH/18 If the "use_postmaster" option was set for a recipient callout together
1987 with the "random" option, the postmaster address was used as the MAIL
1988 FROM address for the random test, but not for the subsequent recipient
1989 test. It is now used for both.
1990
5ea81592
PH
1991PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1992 patch removes a few documentation additions to RFC 3028, because the
1993 latest draft now contains them. It adds the new en;ascii-case comparator
1994 and a new error check for 8bit text in MIME parts. Comparator and
1995 require names are now matched exactly. I enabled the subaddress
1996 extension, but it is not well tested yet (read: it works for me)."
1997
c6c2dc1d
PH
1998PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1999 rework some of the code of TK/09 above to avoid the hardwired use of
2000 "%lld" and "long long". Replaced the call to snprintf() with a call to
2001 string_vformat().
2002
fffffe4c
PH
2003PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2004 records point to non-existent hosts", "retry timeout exceeded", and
2005 "retry time not reached for any host after a long failure period".
ca02eafb 2006
9a26b6b2
PH
2007PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2008 experimental DomainKeys support:
2009
2010 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2011 (2) On an error such as an illegally used "control", the wrong name for
2012 the control was given.
2013
2014 These problems did NOT occur unless DomainKeys support was compiled.
2015
4aee0225
PH
2016PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2017
32d668a5
PH
2018PH/24 Added ${if match_ip condition.
2019
8187c3f3
PH
2020PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2021 databases so that it will be absolutely obvious if a crash occurs in the
2022 DB library. This is a regular occurrence (often caused by mis-matched
2023 db.h files).
2024
ff790e47 2025PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2026 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2027 picked up on a user's system that detects such things. There doesn't seem
2028 to be a gcc warning option for this - only an attribute that has to be
2029 put on the function's prototype. It seems that in Fedora Core 4 they have
2030 set this on a number of new functions. No doubt there will be more in due
2031 course.
ff790e47 2032
5417f6d1
PH
2033PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2034 specify a transport. However, if an address that was verified by such a
2035 router was the subject of a callout, Exim crashed because it tried to
2036 read the rcpt_include_affixes from the non-existent transport. Now it
2037 just assumes that the setting of that option is false. This bug was
2038 introduced by 4.51/PH/31.
2039
59cf8544
PH
2040PH/28 Changed -d+all to exclude +memory, because that information is very
2041 rarely of interest, but it makes the output a lot bigger. People tend to
2042 do -d+all out of habit.
2043
e7ad8a65
PH
2044PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2045 code in os-type was giving problems when libc.so lives in lib64, like on
2046 x86_64 Fedora Core.
2047
ade42478
PH
2048PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2049 aren't the modern standard, and it seems that some systems' include files
2050 don't always have them. Exim was already checking for some of the newer
2051 ones like T_AAAA, and defining it itself. I've added checks for all the
2052 record types that Exim uses.
2053
182ad5cf
PH
2054PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2055 not automatically generating a new one, as it is supposed to. This
2056 prevented TLS from working. If the file did exist, but contained invalid
2057 data, a new version was generated, as expected. It was only the case of a
2058 non-existent file that was broken.
2059
b0d9fc80
TK
2060TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2061 with a change in libdomainkeys > 0.64.
2062
2063TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2064 from DNS. If the selector record carries the flag, it now has
2065 precedence over the domain-wide flag.
2066
2067TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2068
47c7a64a
PH
2069PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2070 the use of a port name that isn't defined in /etc/services) occurred, the
2071 message was deferred as in a normal delivery, and thus remained on the
2072 spool, instead of being failed because of the mua_wrapper setting. This
2073 is now fixed, and I tidied up some of the mua_wrapper messages at the
2074 same time.
2075
a388bce4
SC
2076SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2077 the messages in a hash of arrays rather than using individual hashes.
2078 This is a bit cleaner and results in dramatic memory savings, albeit
2079 at a slight CPU cost.
2080
2081SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2082 as requested by Marc Sherman.
2083
2084SC/10 Eximstats: added histograms for user specified patterns as requested
2085 by Marc Sherman.
2086
0793e4ed
SC
2087SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2088
c58b88df
PH
2089PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2090 fopen() in the content-scanning modules that did not already have it.
2091
e7ad8a65 2092
7982096b
PH
2093Exim version 4.51
2094-----------------
2095
1a46a8c5
PH
2096TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2097 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2098
2f079f46 2099TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2100
2101TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2102
2103PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2104 to test Sieve filters that use "vacation".
2105
2106PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2107 that changes the way the GnuTLS parameters are stored in the cache file.
2108 The new format can be generated externally. For backward compatibility,
2109 if the data in the cache doesn't make sense, Exim assumes it has read an
2110 old-format file, and it generates new data and writes a new file. This
2111 means that you can't go back to an older release without removing the
2112 file.
2113
2114PH/03 A redirect router that has both "unseen" and "one_time" set does not
2115 work if there are any delivery delays because "one_time" forces the
2116 parent to be marked "delivered", so its unseen clone is never tried
2117 again. For this reason, Exim now forbids the simultaneous setting of
2118 these two options.
2119
2120PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2121 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2122 entry if you want to know the details. The fix, however, neglected to
2123 consider the case when local delivery batching is involved. The test for
2124 "previously delivered" was not happening when checking to see if an
2125 address could be batched with a previous (undelivered) one; under
2126 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2127 address.
1a46a8c5
PH
2128
2129PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2130 in its include files, and this causes problems building Exim.
2131
2132PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2133 header_syntax) but Exim was just ignoring anything given after a slash.
2134 In particular, this caused confusion with an attempt to use "verify =
2135 reverse_host_lookup/defer_ok". An error is now given when options are
2136 supplied for verify items that do not have them. (Maybe reverse_host_
2137 lookup should have a defer_ok option, but that's a different point.)
2138
2139PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2140 defined by RFC 821) to 2048, because there were problems with some AUTH
2141 commands, and RFC 1869 says the size should be increased for extended
2142 SMTP commands that take arguments.
2143
2144PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2145 Finch).
2146
2147PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2148 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2149
49c2d5ea
PH
2150PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2151 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2152 whatever). Otherwise the password may appear in the log. Following change
2153 PH/42 below, there is no longer a chance of it appearing in a bounce
2154 message.
49c2d5ea 2155
bf759a8b
PH
2156PH/11 Installed exipick version 20050225.0 from John Jetmore.
2157
83364d30
PH
2158PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2159 of its addresses was ever tried. (Bugzilla bug #2.)
2160
7999bbd7
PH
2161PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2162 the result incorrectly in the debug output. (It correctly added a newline
2163 to what was transported.)
2164
7dbf77c9
PH
2165TF/01 Added $received_time.
2166
74e0617f
PH
2167PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2168 commented out examples of how to interface to a virus scanner and to
2169 SpamAssassin. Also added commented examples of av_scanner and
2170 spamd_address settings.
2171
2f079f46
PH
2172PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2173 and controls are allowed in which ACLs. There were a couple of minor
2174 errors. Some of the entries in the conditions table (which is a table of
2175 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2176 negation of where the condition IS allowed.
2177
8c841523
PH
2178PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2179
7766a4f0
PH
2180PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2181 header file does not have a version number, so I've had to invent a new
2182 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2183 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2184 radiusclient), but it was contributed by a Radius user.
2185
8b417f2c
PH
2186PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2187 files or directories, for OpenSSL.
2188
901f42cb
PH
2189PH/19 When an Exim process that is running as root has to create an Exim log
2190 file, it does so in a subprocess that runs as exim:exim so as to get the
2191 ownership right at creation (otherwise, other Exim processes might see
2192 the file with the wrong ownership). There was no test for failure of this
2193 fork() call, which would lead to the process getting stuck as it waited
2194 for a non-existent subprocess. Forks do occasionally fail when resources
2195 run out. I reviewed all the other calls to fork(); they all seem to check
2196 for failure.
2197
f9b9210e
PH
2198PH/20 When checking for unexpected SMTP input at connect time (before writing
2199 the banner), Exim was not dealing correctly with a non-positive return
2200 from the read() function. If the client had disconnected by this time,
2201 the result was a log entry for a synchronization error with an empty
2202 string after "input=" when read() returned zero. If read() returned -1
2203 (an event I could not check), uninitialized data bytes were printed.
2204 There were reports of junk text (parts of files, etc) appearing after
2205 "input=".
2206
54cdb463
PH
2207PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2208
cf00dad6
PH
2209PH/22 Added support for macro redefinition, and (re)definition in between
2210 driver and ACL definitions.
2211
acb1b346
PH
2212PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2213 forgetting to use the resulting value; it was using the unexpanded value.
2214
c5ddb310
PH
2215PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2216 hadn't been configured. The fix is from Juergen Kreileder, who
2217 understands it better than I do:
2218
2219 "Here's what I see happening with three configured cyrus_sasl
2220 authenticators configured (plain, login, cram-md5):
2221
2222 On startup auth_cyrus_sasl_init() gets called for each of these.
2223 This means three calls to sasl_listmech() without a specified mech_list.
2224 => SASL tests which mechs of all available mechs actually work
2225 => three warnings about OTP not working
2226 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2227
2228 With the patch, sasl_listmech() also gets called three times. But now
2229 SASL's mech_list option is set to the server_mech specified in the the
2230 authenticator. Or in other words, the answer from sasl_listmech()
2231 gets limited to just the mech you're testing for (which is different
2232 for each call.)
2233 => the return list contains just 'plain' or 'login', 'cram-md5' or
2234 nothing depending on the value of ob->server_mech.
2235
2236 I've just tested the patch: Authentication still works fine,
2237 unavailable mechs specified in the exim configuration are still
2238 caught, and the auth.log warnings about OTP are gone."
2239
31619da6
PH
2240PH/25 When debugging is enabled, the contents of the command line are added
2241 to the debugging output, even when log_selector=+arguments is not
2242 specified.
2243
bebaf0fc
PH
2244PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2245 answer is "GNU", and only if the return is "GNU/something" is the answer
2246 "Linux".
2247
475fe28a
PH
2248PH/27 $acl_verify_message is now set immediately after the failure of a
2249 verification in an ACL, and so is available in subsequent modifiers. In
2250 particular, the message can be preserved by coding like this:
2251
2252 warn !verify = sender
2253 set acl_m0 = $acl_verify_message
2254
2255 Previously, $acl_verify_message was set only while expanding "message"
2256 and "log_message" when a very denied access.
2257
7e8bec7a
PH
2258PH/28 Modified OS/os.c-Linux with
2259
2260 -#ifndef OS_LOAD_AVERAGE
2261 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2262
2263 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2264 nomenclature these days.)
2265
e4a89c47
PH
2266PH/29 Installed patch from the Sieve maintainer that adds the options
2267 sieve_useraddress and sieve_subaddress to the redirect router.
2268
5ca2a9a1
PH
2269PH/30 In these circumstances:
2270 . Two addresses routed to the same list of hosts;
2271 . First host does not offer TLS;
2272 . First host accepts first address;
2273 . First host gives temporary error to second address;
2274 . Second host offers TLS and a TLS session is established;
2275 . Second host accepts second address.
2276 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2277 and peerdn, if requested) that were in fact used only for the second
2278 address.
7e8bec7a 2279
c688b954
PH
2280PH/31 When doing a callout as part of verifying an address, Exim was not paying
2281 attention to any local part prefix or suffix that was matched by the
2282 router that accepted the address. It now behaves in the same way as it
2283 does for delivery: the affixes are removed from the local part unless
2284 rcpt_include_affixes is set on the transport.
2285
fed77020
PH
2286PH/32 Add the sender address, as F=<...>, to the log line when logging a
2287 timeout during the DATA phase of an incoming message.
2288
7fe1560f
PH
2289PH/33 Sieve envelope tests were broken for match types other than :is. I have
2290 applied a patch sanctioned by the Sieve maintainer.
c688b954 2291
ebb6e6d5
PH
2292PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2293 the uid or gid is negative. A case of a negative gid caused this to be
2294 noticed. The fix allows for either to be negative.
2295
9c4e8f60
PH
2296PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2297 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2298 overlooked.
2299
2300PH/36 The change PH/12 above was broken. Fixed it.
2301
d7174846
PH
2302PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2303 the grounds that routing the same address twice would always produce the
2304 same answer. This might have been true once, but it is certainly no
2305 longer true now. Routing a child address may depend on the previous
2306 routing that produced that child. Some complicated redirection strategies
2307 went wrong when messages had multiple recipients, and made Exim's
2308 behaviour dependent on the order in which the addresses were given.
2309
2310 I have moved the duplicate checking until after the routing is complete.
2311 Exim scans the addresses that are assigned to local and remote
2312 transports, and removes any duplicates. This means that more work will be
2313 done, as duplicates will always all be routed, but duplicates are
2314 presumably rare, so I don't expect this is of any significance.
2315
2316 For deliveries to pipes, files, and autoreplies, the duplicate checking
2317 still happens during the routing process, since they are not going to be
2318 routed further.
2319
cfe75fc3
PH
2320PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2321 It corrects a timeout issue with spamd. This is Ian's comment: "The
2322 background is that sometimes spamd either never reads data from a
2323 connection it has accepted, or it never writes response data. The exiscan
2324 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2325 blindly assumes that writes won't block so it may never time out."
2326
be22d70e
PH
2327PH/39 Allow G after quota size as well as K and M.
2328
0612b098
PH
2329PH/40 The value set for $authenticated_id in an authenticator may not contain
2330 binary zeroes or newlines because the value is written to log lines and
2331 to spool files. There was no check on this. Now the value is run through
2332 the string_printing() function so that such characters are converted to
2333 printable escape sequences.
2334
2e0c1448
PH
2335PH/41 $message_linecount is a new variable that contains the total number of
2336 lines in the message. Compare $body_linecount, which is the count for the
2337 body only.
2338
447d236c
PH
2339PH/42 Exim no longer gives details of delivery errors for specific addresses in
2340 bounce and delay warning messages, except in certain special cases, which
2341 are as follows:
2342
2343 (a) An SMTP error message from a remote host;
2344 (b) A message specified in a :fail: redirection;
2345 (c) A message specified in a "fail" command in a system filter;
2346 (d) A message specified in a FAIL return from the queryprogram router;
2347 (e) A message specified by the cannot_route_message router option.
2348
2349 In these cases only, Exim does include the error details in bounce and
2350 warning messages. There are also a few cases where bland messages such
2351 as "unrouteable address" or "local delivery error" are given.
2352
d20976dc
PH
2353PH/43 $value is now also set for the "else" part of a ${run expansion.
2354
f656d135
PH
2355PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2356 being worked on, but at least Exim now implements the latest version to
2357 play with."
2358
2e2a30b4
PH
2359PH/45 In a pipe transport, although a timeout while waiting for the pipe
2360 process to complete was treated as a delivery failure, a timeout while
2361 writing the message to the pipe was logged, but erroneously treated as a
2362 successful delivery. Such timeouts include transport filter timeouts. For
2363 consistency with the overall process timeout, these timeouts are now
2364 treated as errors, giving rise to delivery failures by default. However,
2365 there is now a new Boolean option for the pipe transport called
2366 timeout_defer, which, if set TRUE, converts the failures into defers for
2367 both kinds of timeout. A transport filter timeout is now identified in
2368 the log output.
2369
9176e9f0
PH
2370PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2371 systems where "make" and "gmake" are different, calling "gmake" at top
2372 level broke things. I've arranged for the value of $(MAKE) to be passed
2373 from the Makefile to this script so that it can call the same version of
2374 "make".
2375
7982096b 2376
bbe902f0
PH
2377A note about Exim versions 4.44 and 4.50
2378----------------------------------------
2379
2380Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2381changes of various kinds. As a consequence, a big documentation update was
2382needed. This delayed the release for rather longer than seemed good, especially
2383in the light of a couple of (minor) security issues. Therefore, the changes
2384that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2385release. So 4.44 and 4.50 are in effect two different branches that both start
2386from 4.43.
2387
2388I have left the 4.50 change log unchanged; it contains all the changes since
23894.43. The change log for 4.44 is below; many of its items are identical to
2390those for 4.50. This seems to be the most sensible way to preserve the
2391historical information.
2392
2393
f7b63901 2394Exim version 4.50
495ae4b0
PH
2395-----------------
2396
5fe762f6
PH
2397 1. Minor wording change to the doc/README.SIEVE file.
2398
139059f6 2399 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2400 computation of the current number of files was incorrect.
495ae4b0 2401
7086e875
PH
2402 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2403 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2404 place.
2405
35af9f61
PH
2406 4. Give more explanation in the error message when the command for a transport
2407 filter fails to execute.
2408
b668c215
PH
2409 5. There are several places where Exim runs a non-Exim command in a
2410 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2411 was being done only for the command run by the queryprogram router. It is
2412 now done for all such subprocesses. The other cases are: ${run, transport
2413 filters, and the commands run by the lmtp and pipe transports.
2414
a494b1e1
PH
2415 6. Added CONFIGURE_GROUP build-time option.
2416
2417 7. Some older OS have a limit of 256 on the maximum number of file
2418 descriptors. Exim was using setrlimit() to set 1000 as a large value
2419 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2420 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2421
c5fcb476
PH
2422 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2423 was an oversight, and furthermore, ever since the addition of extra
2424 controls (e.g. 4.43/32), the checks on when to allow different forms of
2425 "control" were broken. There should now be diagnostics for all cases when a
2426 control that does not make sense is encountered.
2427
69358f02
PH
2428 9. Added the /retain_sender option to "control=submission".
2429
5be20824
PH
243010. $recipients is now available in the predata ACL (oversight).
2431
eb2c0248
PH
243211. Tidy the search cache before the fork to do a delivery from a message
2433 received from the command line. Otherwise the child will trigger a lookup
2434 failure and thereby defer the delivery if it tries to use (for example) a
2435 cached ldap connection that the parent has called unbind on.
2436
2a3eea10
PH
243712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2438 of $address_data from the recipient verification was clobbered by the
2439 sender verification.
2440
244113. The value of address_data from a sender verification is now available in
2442 $sender_address_data in subsequent conditions in the ACL statement.
2443
23c7ff99
PH
244414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2445
4deaf07d
PH
244615. Added a new option "connect=<time>" to callout options, to set a different
2447 connection timeout.
2448
926e1192
PH
244916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2450 was its contents. (It was OK if the option was not defined at all.)
2451
650edc6f
PH
245217. A "Completed" log line is now written for messages that are removed from
2453 the spool by the -Mrm option.
2454
2c7db3f5
PH
245518. New variables $sender_verify_failure and $recipient_verify_failure contain
2456 information about exactly what failed.
2457
3d235903
PH
245819. Added -dd to debug only the daemon process.
2459
7c7ad977
PH
246020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2461 handles timeouts, both on the server side and network timeouts. Renamed the
2462 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2463
981756db
PH
246421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2465 It is now set to "smtps".
2466
d4eb88df
PH
246722. $host_address is now set to the target address during the checking of
2468 ignore_target_hosts.
2469
247023. When checking ignore_target_hosts for an ipliteral router, no host name was
2471 being passed; this would have caused $sender_host_name to have been used if
2472 matching the list had actually called for a host name (not very likely,
2473 since this list is usually IP addresses). A host name is now passed as
2474 "[x.x.x.x]".
2475
7d468ab8
PH
247624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2477 code that specifies a non-restarting handler (typically sigaction() in
2478 modern systems) in an attempt to fix a rare and obscure crash bug.
2479
248025. Narrowed the window for a race in the daemon that could cause it to ignore
2481 SIGCHLD signals. This is not a major problem, because they are used only to
2482 wake it up if nothing else does.
2483
62c0818f
PH
248426. A malformed maildirsize file could cause Exim to calculate negative values
2485 for the mailbox size or file count. Odd effects could occur as a result.
2486 The maildirsize information is now recalculated if the size or filecount
2487 end up negative.
2488
26034054
PH
248927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2490 support for a long time. Removed HAVE_SYS_VFS_H.
2491
af66f652
PH
249228. Installed the latest version of exipick from John Jetmore.
2493
90af77f4
PH
249429. In an address list, if the pattern was not a regular expression, an empty
2495 subject address (from a bounce message) matched only if the pattern was an
2496 empty string. Non-empty patterns were not even tested. This was the wrong
2497 because it is perfectly reasonable to use an empty address as part of a
2498 database query. An empty address is now tested by patterns that are
2499 lookups. However, all the other forms of pattern expect the subject to
2500 contain a local part and a domain, and therefore, for them, an empty
2501 address still always fails if the pattern is not itself empty.
2502
d8ef3577
PH
250330. Exim went into a mad DNS loop when attempting to do a callout where the
2504 host was specified on an smtp transport, and looking it up yielded more
2505 than one IP address.
2506
5cb8cbc6
PH
250731. Re-factored the code for checking spool and log partition space into a
2508 function that finds that data and another that does the check. The former
2509 is then used to implement four new variables: $spool_space, $log_space,
2510 $spool_inodes, and $log_inodes.
2511
14702f5b
PH
251232. The RFC2047 encoding function was originally intended for short strings
2513 such as real names; it was not keeping to the 75-character limit for
2514 encoded words that the RFC imposes. It now respects the limit, and
2515 generates multiple encoded words if necessary. To be on the safe side, I
2516 have increased the buffer size for the ${rfc2047: expansion operator from
2517 1024 to 2048 bytes.
2518
063b1e99
PH
251933. It is now permitted to omit both strings after an "if" condition; if the
2520 condition is true, the result is "true". As before, when the second string
2521 is omitted, a false condition yields an empty string. This makes it less
2522 cumbersome to write custom ACL and router conditions.
2523
652e1b65
PH
252434. Failure to deliver a bounce message always caused it to be frozen, even if
2525 there was an errors_to setting on the router. The errors_to setting is now
2526 respected.
2527
6f0c9a4f
PH
252835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2529 canonical form (fully expanded) before being placed in
2530 $sender_host_address.
2531
33397d19
PH
253236. The table in the code that translates DNS record types into text (T_A to
2533 "A" for instance) was missing entries for NS and CNAME. It is just possible
2534 that this could have caused confusion if both these types were looked up
2535 for the same domain, because the text type is used as part of Exim's
2536 per-process caching. But the chance of anyone hitting this buglet seems
2537 very small.
2538
7bb56e1f
PH
253937. The dnsdb lookup has been extended in a number of ways.
2540
2541 (1) There is a new type, "zns", which walks up the domain tree until it
2542 finds some nameserver records. It should be used with care.
2543
ea3bc19b
PH
2544 (2) There is a new type, "mxh", which is like "mx" except that it returns
2545 just the host names, not the priorities.
2546
2547 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2548 looked up. The behaviour when one of the lookups defers can be
2549 controlled by a keyword.
7bb56e1f 2550
ea3bc19b 2551 (4) It is now possible to specify the separator character for use when
7bb56e1f 2552 multiple records are returned.
33397d19 2553
0bcb2a0e
PH
255438. The dnslists ACL condition has been extended: it is now possible to supply
2555 a list of IP addresses and/or domains to be looked up in a particular DNS
2556 domain.
2557
2ac0e484
PH
255839. Added log_selector=+queue_time_overall.
2559
4e1fde53
PH
256040. When running the queue in the test harness, wait just a tad after forking a
2561 delivery process, to get repeatability of debugging output.
2562
de365ded
PH
256341. Include certificate and key file names in error message when GnuTLS fails
2564 to set them up, because the GnuTLS error message doesn't include the name
2565 of the failing file when there is a problem reading it.
2566
f05da2e8
PH
256742. Allow both -bf and -bF in the same test run.
2568
d6453af2
PH
256943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2570
f7b63901
PH
257144. The "Exiscan patch" is now merged into the mainline Exim source.
2572
257345. Sometimes the final signoff response after QUIT could fail to get
2574 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2575 < 0 before doing a fflush(). This bug looks as though it goes back to the
2576 introduction of TLS in release 3.20, but "sometimes" must have been rare
2577 because the tests only now provoked it.
2578
a444213a
PH
257946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2580 (this can affect the format of dates).
2581
0ec020ea
PH
258247. exim_tidydb, when checking for the continued existence of a message for
2583 which it has found a message-specific retry record, was not finding
2584 messages that were in split spool directories. Consequently, it was
2585 deleting retry records that should have stayed in existence.
2586
b1206957
PH
258748. Steve fixed some bugs in eximstats.
2588
258949. The SPA authentication driver was not abandoning authentication and moving
2590 on to the next authenticator when an expansion was forced to fail,
2591 contradicting the general specification for all authenticators. Instead it
2592 was generating a temporary error. It now behaves as specified.
2593
26dd5a95
PH
259450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2595 (the order specifies the preference for clients). The order is now AES256,
2596 AES128, 3DES, ARCFOUR128.
2597
343b2385
PH
259851. Small patch to Sieve code - explicitly set From: when generating an
2599 autoreply.
2600
1c5466b9
PH
260152. Exim crashed if a remote delivery caused a very long error message to be
2602 recorded - for instance if somebody sent an entire SpamAssassin report back
2603 as a large number of 550 error lines. This bug was coincidentally fixed by
2604 increasing the size of one of Exim's internal buffers (big_buffer) that
2605 happened as part of the Exiscan merge. However, to be on the safe side, I
2606 have made the code more robust (and fixed the comments that describe what
2607 is going on).
2608
55ee9ee3
PH
260953. Now that there can be additional text after "Completed" in log lines (if
2610 the queue_time_overall log selector is set), a one-byte patch to exigrep
2611 was needed to allow it to recognize "Completed" as not the last thing in
2612 the line.
2613
d38f8232
PH
261454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2615 patch that reportedly fixes this has been added. I am not expert enough to
2616 create a test for it. This is what the patch creator wrote:
2617
2618 "I found a little strange behaviour of ldap code when working with
2619 Windows 2003 AD Domain, where users was placed in more than one
2620 Organization Units. When I tried to give exim partial DN, the exit code
2621 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2622 But simultaneously result of request was absolutely normal ldap result,
2623 so I produce this patch..."
2624
3295e65b
PH
2625 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2626 REFERENCE, so I have modified the code to exclude the patch when that macro
2627 is not defined.
2628
7102e136
PH
262955. Some experimental protocols are using DNS PTR records for new purposes. The
2630 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2631 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2632 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2633 CAN-2005-0021
7102e136 2634
3ca0ba97
PH
263556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2636
c2bcbe20
PH
263757. Double the size of the debug message buffer (to 2048) so that more of very
2638 long debug lines gets shown.
2639
18ce445d
PH
264058. The exicyclog utility now does better if the number of log files to keep
2641 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2642
1f5b4c3d
PH
264359. Two changes related to the smtp_active_hostname option:
2644
2645 (1) $smtp_active_hostname is now available as a variable.
2646 (2) The default for smtp_banner uses $smtp_active_hostname instead
2647 of $primary_hostname.
2648
b975ba52
PH
264960. The host_aton() function is supposed to be passed a string that is known
2650 to be a valid IP address. However, in the case of IPv6 addresses, it was
2651 not checking this. This is a hostage to fortune. Exim now panics and dies
2652 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2653 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2654 components; fortuitously, this particular loophole had already been fixed
2655 by change 4.50/55 above.
2656
2657 If there are any other similar loopholes, the new check in host_aton()
2658 itself should stop them being exploited. The report I received stated that
2659 data on the command line could provoke the exploit when Exim was running as
2660 exim, but did not say which command line option was involved. All I could
2661 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2662 running as the user.
ea3a6f44 2663 CAN-2005-0021
85b87bc2
PH
2664
266561. There was a buffer overflow vulnerability in the SPA authentication code
2666 (which came originally from the Samba project). I have added a test to the
2667 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2668 CAN-2005-0022
b975ba52 2669
17ffcae7
PH
267062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2671 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2672
d95f9fdb
PH
267363. The daemon start-up calls getloadavg() while still root for those OS that
2674 need the first call to be done as root, but it missed one case: when
2675 deliver_queue_load_max is set with deliver_drop_privilege. This is
2676 necessary for the benefit of the queue runner, because there is no re-exec
2677 when deliver_drop_privilege is set.
2678
86b8287f
PH
267964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2680 This has been fixed.
2681
60dc5e56
PH
268265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2683 was in use, was not putting the data itself into the right store pool;
2684 consequently, it could be overwritten for a subsequent message in the same
2685 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2686 the caching.)
2687
533244af
PH
268866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2689
a5a28604
PH
269067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2691 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2692 the function were treating the return as a boolean value, which happened to
2693 work because 0=false and not-0=true, but is not correct code.
2694
7e634d24
PH
269568. The host_aton() function was not handling scoped IPv6 addresses (those
2696 with, for example, "%eth0" on the end) correctly.
2697
3e11c26b
PH
269869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2699 negated items (that is, ~something) in unsigned ints. Some compilers
2700 apparently mutter when there is no cast.
2701
6729cf78
PH
270270. If an address verification called from an ACL failed, and did not produce a
2703 user-specific message (i.e. there was only a "system" message), nothing was
2704 put in $acl_verify_message. In this situation, it now puts the system
2705 message there.
2706
00f00ca5
PH
270771. Change 4.23/11 added synchronization checking at the start of an SMTP
2708 session; change 4.31/43 added the unwanted input to the log line - except
2709 that it did not do this in the start of session case. It now does.
2710
c9bdd01c
PH
271172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2712 This is wrong and can cause the other end to generate a synchronization
2713 error if it is another Exim or anything else that does the synchronization
2714 check. A QUIT command is no longer sent after a timeout.
2715
d43194df
PH
271673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2717 during host lookups.
2718
fe5b5d0b
PH
271974. The defer_ok option of callout verification was not working if it was used
2720 when verifying addresses in header lines, that is, for this case:
2721
2722 verify = header_sender/callout=defer_ok
2723
76a2d7ba
PH
272475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2725 those file descriptors could be used for SMTP connections. If anything
2726 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2727 could be sent to the SMTP client, causing chaos. The daemon now opens
2728 stdin, stdout, and stderr to /dev/null when it puts itself into the
2729 background.
2730
273176. Arrange for output from Perl's "warn" command to be written to Exim's main
2732 log by default. The user can override this with suitable Perl magic.
2733
04f7d5b9
PH
273477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2735 the log message when discard triggers, was not working for the DATA ACL or
2736 for the non-SMTP ACL.
2737
bc60667e
PH
273878. Error message wording change in sieve.c.
2739
bb6e88ff
PH
274079. If smtp_accept_max_per_host was set, the number of connections could be
2741 restricted to fewer than expected, because the daemon was trying to set up
2742 a new connection before checking whether the processes handling previous
2743 connections had finished. The check for completed processes is now done
2744 earlier. On busy systems, this bug wouldn't be noticed because something
2745 else would have woken the daemon, and it would have reaped the completed
2746 process earlier.
2747
1e70f85b
PH
274880. If a message was submitted locally by a user whose login name contained one
2749 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2750 It caused a spool format error. I have fixed the spool reading code. A
2751 related problem was that the "from" clause in the Received: line became
2752 illegal because of the space(s). It is now covered by ${quote_local_part.
2753
275481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2755 tables).
2756
4e01f9d6
PH
275782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2758
1ee1cef2
PH
275983. Patch from Sieve maintainer to fix unterminated string problem in
2760 "vacation" handling.
2761
6e2b4ccc
PH
276284. Some minor changes to the Linux configuration files to help with other
2763 OS variants using glibc.
2764
8e669ac1
PH
276585. One more patch for Sieve to update vacation handling to latest spec.
2766
495ae4b0 2767
bbe902f0
PH
2768----------------------------------------------------
2769See the note above about the 4.44 and 4.50 releases.
2770----------------------------------------------------
2771
2772
2773Exim version 4.44
2774-----------------
2775
2776 1. Change 4.43/35 introduced a bug that caused file counts to be
2777 incorrectly computed when quota_filecount was set in an appendfile
2778 transport
2779
2780 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2781 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2782 place.
2783
2784 3. Give more explanation in the error message when the command for a transport
2785 filter fails to execute.
2786
2787 4. There are several places where Exim runs a non-Exim command in a
2788 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2789 was being done only for the command run by the queryprogram router. It is
2790 now done for all such subprocesses. The other cases are: ${run, transport
2791 filters, and the commands run by the lmtp and pipe transports.
2792
2793 5. Some older OS have a limit of 256 on the maximum number of file
2794 descriptors. Exim was using setrlimit() to set 1000 as a large value
2795 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2796 systems. I've change it so that if it can't get 1000, it tries for 256.
2797
2798 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2799 was an oversight, and furthermore, ever since the addition of extra
2800 controls (e.g. 4.43/32), the checks on when to allow different forms of
2801 "control" were broken. There should now be diagnostics for all cases when a
2802 control that does not make sense is encountered.
2803
2804 7. $recipients is now available in the predata ACL (oversight).
2805
2806 8. Tidy the search cache before the fork to do a delivery from a message
2807 received from the command line. Otherwise the child will trigger a lookup
2808 failure and thereby defer the delivery if it tries to use (for example) a
2809 cached ldap connection that the parent has called unbind on.
2810
2811 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2812 of $address_data from the recipient verification was clobbered by the
2813 sender verification.
2814
281510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2816 was its contents. (It was OK if the option was not defined at all.)
2817
281811. A "Completed" log line is now written for messages that are removed from
2819 the spool by the -Mrm option.
2820
282112. $host_address is now set to the target address during the checking of
2822 ignore_target_hosts.
2823
282413. When checking ignore_target_hosts for an ipliteral router, no host name was
2825 being passed; this would have caused $sender_host_name to have been used if
2826 matching the list had actually called for a host name (not very likely,
2827 since this list is usually IP addresses). A host name is now passed as
2828 "[x.x.x.x]".
2829
283014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2831 code that specifies a non-restarting handler (typically sigaction() in
2832 modern systems) in an attempt to fix a rare and obscure crash bug.
2833
283415. Narrowed the window for a race in the daemon that could cause it to ignore
2835 SIGCHLD signals. This is not a major problem, because they are used only to
2836 wake it up if nothing else does.
2837
283816. A malformed maildirsize file could cause Exim to calculate negative values
2839 for the mailbox size or file count. Odd effects could occur as a result.
2840 The maildirsize information is now recalculated if the size or filecount
2841 end up negative.
2842
284317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2844 support for a long time. Removed HAVE_SYS_VFS_H.
2845
ea3a6f44 284618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2847
284819. Allow an empty sender to be matched against a lookup in an address list.
2849 Previously the only cases considered were a regular expression, or an
2850 empty pattern.
2851
285220. Exim went into a mad DNS lookup loop when doing a callout where the
2853 host was specified on the transport, if the DNS lookup yielded more than
2854 one IP address.
2855
ea3a6f44
NM
285621. The RFC2047 encoding function was originally intended for short strings
2857 such as real names; it was not keeping to the 75-character limit for
2858 encoded words that the RFC imposes. It now respects the limit, and
2859 generates multiple encoded words if necessary. To be on the safe side, I
2860 have increased the buffer size for the ${rfc2047: expansion operator from
2861 1024 to 2048 bytes.
bbe902f0 2862
ea3a6f44
NM
286322. Failure to deliver a bounce message always caused it to be frozen, even if
2864 there was an errors_to setting on the router. The errors_to setting is now
2865 respected.
bbe902f0
PH
2866
286723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2868 canonical form (fully expanded) before being placed in
2869 $sender_host_address.
2870
287124. Updated eximstats to version 1.33
2872
ea3a6f44
NM
287325. Include certificate and key file names in error message when GnuTLS fails
2874 to set them up, because the GnuTLS error message doesn't include the name
2875 of the failing file when there is a problem reading it.
bbe902f0
PH
2876
287726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2878 As per change 25.
bbe902f0 2879
ea3a6f44
NM
288027. Reset the locale to "C" after calling embedded Perl, in case it was changed
2881 (this can affect the format of dates).
bbe902f0 2882
ea3a6f44
NM
288328. exim_tidydb, when checking for the continued existence of a message for
2884 which it has found a message-specific retry record, was not finding
2885 messages that were in split spool directories. Consequently, it was
2886 deleting retry records that should have stayed in existence.
bbe902f0
PH
2887
288829. eximstats updated to version 1.35
2889 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2890 1.35 - bugfix such that pie charts by volume are generated correctly
2891
ea3a6f44
NM
289230. The SPA authentication driver was not abandoning authentication and moving
2893 on to the next authenticator when an expansion was forced to fail,
2894 contradicting the general specification for all authenticators. Instead it
2895 was generating a temporary error. It now behaves as specified.
bbe902f0 2896
ea3a6f44
NM
289731. The default ordering of permitted cipher suites for GnuTLS was pessimal
2898 (the order specifies the preference for clients). The order is now AES256,
2899 AES128, 3DES, ARCFOUR128.
bbe902f0 2900
ea3a6f44
NM
290131. Small patch to Sieve code - explicitly set From: when generating an
2902 autoreply.
bbe902f0 2903
ea3a6f44
NM
290432. Exim crashed if a remote delivery caused a very long error message to be
2905 recorded - for instance if somebody sent an entire SpamAssassin report back
2906 as a large number of 550 error lines. This bug was coincidentally fixed by
2907 increasing the size of one of Exim's internal buffers (big_buffer) that
2908 happened as part of the Exiscan merge. However, to be on the safe side, I
2909 have made the code more robust (and fixed the comments that describe what
2910 is going on).
bbe902f0 2911
ea3a6f44
NM
291233. Some experimental protocols are using DNS PTR records for new purposes. The
2913 keys for these records are domain names, not reversed IP addresses. The
2914 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2915 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2916 CAN-2005-0021
2917
ea3a6f44
NM
291834. The host_aton() function is supposed to be passed a string that is known
2919 to be a valid IP address. However, in the case of IPv6 addresses, it was
2920 not checking this. This is a hostage to fortune. Exim now panics and dies
2921 if the condition is not met. A case was found where this could be provoked
2922 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2923 components; fortuitously, this particular loophole had already been fixed
2924 by change 4.50/55 or 4.44/33 above.
2925
2926 If there are any other similar loopholes, the new check in host_aton()
2927 itself should stop them being exploited. The report I received stated that
2928 data on the command line could provoke the exploit when Exim was running as
2929 exim, but did not say which command line option was involved. All I could
2930 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2931 running as the user.
bbe902f0
PH
2932 CAN-2005-0021
2933
ea3a6f44
NM
293435. There was a buffer overflow vulnerability in the SPA authentication code
2935 (which came originally from the Samba project). I have added a test to the
2936 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2937 CAN-2005-0022
2938
ea3a6f44
NM
293936. The daemon start-up calls getloadavg() while still root for those OS that
2940 need the first call to be done as root, but it missed one case: when
2941 deliver_queue_load_max is set with deliver_drop_privilege. This is
2942 necessary for the benefit of the queue runner, because there is no re-exec
2943 when deliver_drop_privilege is set.
bbe902f0 2944
ea3a6f44
NM
294537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2946 was in use, was not putting the data itself into the right store pool;
2947 consequently, it could be overwritten for a subsequent message in the same
2948 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2949 the caching.)
bbe902f0 2950
ea3a6f44
NM
295138. Sometimes the final signoff response after QUIT could fail to get
2952 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2953 < 0 before doing a fflush(). This bug looks as though it goes back to the
2954 introduction of TLS in release 3.20, but "sometimes" must have been rare
2955 because the tests only now provoked it.
bbe902f0
PH
2956
2957
495ae4b0
PH
2958Exim version 4.43
2959-----------------
2960
2961 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2962 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2963 Now it returns an integer. A number of calls were still expecting a T/F
2964 return. Fortuitously, in all cases, the tests worked in OK situations,
2965 which is the norm. However, things would have gone wrong on any write
2966 failures on the smtp file descriptor. This function is used when sending
2967 messages over SMTP and also when doing verify callouts.
2968
2969 2. When Exim is called to do synchronous delivery of a locally submitted
2970 message (the -odf or -odi options), it no longer closes stderr before doing
2971 the delivery.
2972
2973 3. Implemented the mua_wrapper option.
2974
2975 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2976
2977 5. Implemented the functions header_remove(), header_testname(),
2978 header_add_at_position(), and receive_remove_recipient(), and exported them
2979 to local_scan().
2980
2981 6. If an ACL "warn" statement specified the addition of headers, Exim already
2982 inserted X-ACL-Warn: at the start if there was no header name. However, it
2983 was not making this test for the second and subsequent header lines if
2984 there were newlines in the string. This meant that an invalid header could
2985 be inserted if Exim was badly configured.
2986
2987 7. Allow an ACL "warn" statement to add header lines at the start or after all
2988 the Received: headers, as well as at the end.
2989
2990 8. Added the rcpt_4xx retry error code.
2991
2992 9. Added postmaster_mailfrom=xxx to callout verification option.
2993
299410. Added mailfrom=xxxx to the callout verification option, for verify=
2995 header_sender only.
2996
299711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2998 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2999
300012. Inserted some casts to stop certain compilers warning when using pointer
3001 differences as field lengths or precisions in printf-type calls (mostly
3002 affecting debugging statements).
3003
300413. Added optional readline() support for -be (dynamically loaded).
3005
300614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3007 same clock tick as a message's arrival, so that its received time was the
3008 same as the "first fail" time on the retry record, and that message
3009 remained on the queue past the ultimate address timeout, every queue runner
3010 would try a delivery (because it was past the ultimate address timeout) but
3011 after another failure, the ultimate address timeout, which should have then
3012 bounced the address, did not kick in. This was a "< instead of <=" error;
3013 in most cases the first failure would have been in the next clock tick
3014 after the received time, and all would be well.
3015
301615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3017 being recognized when the domain list was tested by the match_domain
3018 condition in an expansion string.
3019
302016. Added the ${str2b64: operator.
3021
302217. Exim was always calling setrlimit() to set a large limit for the number of
3023 processes, without checking whether the existing limit was already
3024 adequate. (It did check for the limit on file descriptors.) Furthermore,
3025 errors from getrlimit() and setrlimit() were being ignored. Now they are
3026 logged to the main and panic logs, but Exim does carry on, to try to do its
3027 job under whatever limits there are.
3028
302918. Imported PCRE 5.0.
3030
303119. Trivial typo in log message " temporarily refused connection" (the leading
3032 space).
3033
303420. If the log selector return_path_on_delivery was set and an address was
3035 redirected to /dev/null, the delivery process crashed because it assumed
3036 that a return path would always be set for a "successful" delivery. In this
3037 case, the whole delivery is bypassed as an optimization, and therefore no
3038 return path is set.
3039
304021. Internal re-arrangement: the function for sending a challenge and reading
3041 a response while authentication was assuming a zero-terminated challenge
3042 string. It's now changed to take a pointer and a length, to allow for
3043 binary data in such strings.
3044
304522. Added the cyrus_sasl authenticator (code supplied by MBM).
3046
304723. Exim was not respecting finduser_retries when seeking the login of the
3048 uid under which it was called; it was always trying 10 times. (The default
3049 setting of finduser_retries is zero.) Also, it was sleeping after the final
3050 failure, which is pointless.
3051
305224. Implemented tls_on_connect_ports.
3053
305425. Implemented acl_smtp_predata.
3055
305626. If the domain in control=submission is set empty, Exim assumes that the
3057 authenticated id is a complete email address when it generates From: or
3058 Sender: header lines.
3059
306027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3061 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3062 chown and chgrp in /bin and hostname in /usr/bin.
3063
306428. Exim was keeping the "process log" file open after each use, just as it
3065 does for the main log. This opens the possibility of it remaining open for
3066 long periods when the USR1 signal hits a daemon. Occasional processlog
3067 errors were reported, that could have been caused by this. Anyway, it seems
3068 much more sensible not to leave this file open at all, so that is what now
3069 happens.
3070
307129. The long-running daemon process does not normally write to the log once it
3072 has entered its main loop, and it closes the log before doing so. This is
3073 so that log files can straightforwardly be renamed and moved. However,
3074 there are a couple of unusual error situations where the daemon does write
3075 log entries, and I had neglected to close the log afterwards.
3076
307730. The text of an SMTP error response that was received during a remote
3078 delivery was being truncated at 512 bytes. This is too short for some of
3079 the long messages that one sometimes sees. I've increased the limit to
3080 1024.
3081
308231. It is now possible to make retry rules that apply only when a message has a
3083 specific sender, in particular, an empty sender.
3084
308532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3086 it possible to be selective about when SMTP synchronization is enforced.
3087
308833. Added "control = caseful_local_part" and "control = "caselower_local_part".
3089
309032. Implemented hosts_connection_nolog.
3091
309233. Added an ACL for QUIT.
3093
309434. Setting "delay_warning=" to disable warnings was not working; it gave a
3095 syntax error.
3096
309735. Added mailbox_size and mailbox_filecount to appendfile.
3098
309936. Added control = no_multiline_responses to ACLs.
3100
310137. There was a bug in the logic of the code that waits for the clock to tick
3102 in the case where the clock went backwards by a substantial amount such
3103 that the microsecond fraction of "now" was more than the microsecond
3104 fraction of "then" (but the whole seconds number was less).
3105
310638. Added support for the libradius Radius client library this is found on
3107 FreeBSD (previously only the radiusclient library was supported).
3108
3109
3110Exim version 4.42
3111-----------------
3112
3113 1. When certain lookups returned multiple values in the form name=value, the
3114 quoting of the values was not always being done properly. Specifically:
3115 (a) If the value started with a double quote, but contained no whitespace,
3116 it was not quoted.
3117 (b) If the value contained whitespace other than a space character (i.e.
3118 tabs or newlines or carriage returns) it was not quoted.
3119 This fix has been applied to the mysql and pgsql lookups by writing a
3120 separate quoting function and calling it from the lookup code. The fix
3121 should probably also be applied to nisplus, ibase and oracle lookups, but
3122 since I cannot test any of those, I have not disturbed their existing code.
3123
3124 2. A hit in the callout cache for a specific address caused a log line with no
3125 reason for rejecting RCPT. Now it says "Previous (cached) callout
3126 verification failure".
3127
3128 3. There was an off-by-one bug in the queryprogram router. An over-long
3129 return line was truncated at 256 instead of 255 characters, thereby
3130 overflowing its buffer with the terminating zero. As well as fixing this, I
3131 have increased the buffer size to 1024 (and made a note to document this).
3132
3133 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3134 when Exim is waiting for an SMTP response from a remote server, Exim
3135 restarts its select() call on the socket, thereby resetting its timeout.
3136 This is not a problem when such interrupts are rare. Somebody set up a cron
3137 job to run exiwhat every 2 minutes, which is less than the normal select()
3138 timeout (5 or 10 minutes). This meant that the select() timeout never
3139 kicked in because it was always reset. I have fixed this by comparing the
3140 time when an interrupt arrives with the time at the start of the first call
3141 to select(). If more time than the timeout has elapsed, the interrupt is
3142 treated as a timeout.
3143
3144 5. Some internal re-factoring in preparation for the addition of Sieve
3145 extensions (by MH). In particular, the "personal" test is moved to a
3146 separate function, and given an option for scanning Cc: and Bcc: (which is
3147 not set for Exim filters).
3148
3149 6. When Exim created an email address using the login of the caller as the
3150 local part (e.g. when creating a From: or Sender: header line), it was not
3151 quoting the local part when it contained special characters such as @.
3152
3153 7. Installed new OpenBSD configuration files.
3154
3155 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3156 try to make them clearer.
3157
3158 9. Callout options, other than the timeout value, were being ignored when
3159 verifying sender addresses in header lines. For example, when using
3160
3161 verify = header_sender/callout=no_cache
3162
3163 the cache was (incorrectly) being used.
3164
316510. Added a missing instance of ${EXE} to the exim_install script; this affects
3166 only the Cygwin environment.
3167
316811. When return_path_on_delivery was set as a log selector, if different remote
3169 addresses in the same message used different return paths and parallel
3170 remote delivery occurred, the wrong values would sometimes be logged.
3171 (Whenever a remote delivery process finished, the return path value from
3172 the most recently started remote delivery process was logged.)
3173
317412. RFC 3848 specifies standard names for the "with" phrase in Received: header
3175 lines when AUTH and/or TLS are in use. This is the "received protocol"
3176 field. Exim used to use "asmtp" for authenticated SMTP, without any
3177 indication (in the protocol name) for TLS use. Now it follows the RFC and
3178 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3179 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3180 names appear in log lines as well as in Received: header lines.
3181
318213. Installed MH's patches for Sieve to add the "copy" and "vacation"
3183 extensions, and comparison tests, and to fix some bugs.
3184
318514. Changes to the "personal" filter test:
3186
3187 (1) The test was buggy in that it was just doing the equivalent of
3188 "contains" tests on header lines. For example, if a user's address was
3189 anne@some.where, the "personal" test would incorrectly be true for
3190
3191 To: susanne@some.where
3192
3193 This test is now done by extracting each address from the header in turn,
3194 and checking the entire address. Other tests that are part of "personal"
3195 are now done using regular expressions (for example, to check local parts
3196 of addresses in From: header lines).
3197
3198 (2) The list of non-personal local parts in From: addresses has been
3199 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3200 taken from the Sieve specification recommendations.
3201
3202 (3) If the message contains any header line starting with "List-" it is
3203 treated as non-personal.
3204
3205 (4) The test for "circular" in the Subject: header line has been removed
3206 because it now seems ill-conceived.
3207
320815. Minor typos in src/EDITME comments corrected.
3209
321016. Installed latest exipick from John Jetmore.
3211
321217. If headers_add on a router specified a text string that was too long for
3213 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3214 of string_sprintf() is now avoided.
3215
321618. $message_body_size was not set (it was always zero) when running the DATA
3217 ACL and the local_scan() function.
3218
321919. For the "mail" command in an Exim filter, no default was being set for
3220 the once_repeat time, causing a random time value to be used if "once" was
3221 specified. (If the value happened to be <= 0, no repeat happened.) The
3222 default is now 0s, meaning "never repeat". The "vacation" command was OK
3223 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3224 (I found it when inspecting the code).
3225
322620. There is now an overall timeout for performing a callout verification. It
3227 defaults to 4 times the callout timeout, which applies to individual SMTP
3228 commands during the callout. The overall timeout applies when there is more
3229 than one host that can be tried. The timeout is checked before trying the
3230 next host. This prevents very long delays if there are a large number of
3231 hosts and all are timing out (e.g. when the network connections are timing
3232 out). The value of the overall timeout can be changed by specifying an
3233 additional sub-option for "callout", called "maxwait". For example:
3234
3235 verify = sender/callout=5s,maxwait=20s
3236
323721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3238 to the end before writing, but this should make it even safer).
3239
324022. Exim was forgetting that it had advertised PIPELINING for the second and
3241 subsequent messages on an SMTP connection. It was also not resetting its
3242 memory on STARTTLS and an internal HELO.
3243
324423. When Exim logs an SMTP synchronization error within a session, it now
3245 records whether PIPELINING has been advertised or not.
3246
324724. Added 3 instances of "(long int)" casts to time_t variables that were being
3248 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3249 rather than long int.
3250
325125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3252
325326. Added the never_mail option to autoreply.
3254
3255
3256Exim version 4.41
3257-----------------
3258
3259 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3260 crash if the getsockname() call failed; this can happen if a connection is
3261 closed very soon after it is established. The problem was simply in the
3262 order in which certain operations were done, causing Exim to try to write
3263 to the SMTP stream before it had set up the file descriptor. The bug has
3264 been fixed by making things happen in the correct order.
3265
3266
3267Exim version 4.40
3268-----------------
3269
3270 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3271 before the connection was closed, thus losing the rejection response.
3272
3273 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3274 some early Solaris releases, but causes trouble in current releases where
3275 socklen_t is defined.
3276
3277 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3278 always exist.
3279
3280 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3281 configured.
3282
3283 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3284 that releasing the top of it at the end releases what was used for sub-
3285 expansions (unless the block got too big). However, discard this block if
3286 the first thing is a variable or header, so that we can use its block when
3287 it is dynamic (useful for very large $message_headers, for example).
3288
3289 6. Lookups now cache *every* query, not just the most recent. A new, separate
3290 store pool is used for this. It can be recovered when all lookup caches are
3291 flushed. Lookups now release memory at the end of their result strings.
3292 This has involved some general refactoring of the lookup sources.
3293
3294 7. Some code has been added to the store_xxx() functions to reduce the amount
3295 of flapping under certain conditions.
3296
3297 8. log_incoming_interface used to affect only the <= reception log lines. Now
3298 it causes the local interface and port to be added to several more SMTP log
3299 lines, for example "SMTP connection from", and rejection lines.
3300
3301 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3302
330310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3304
330511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3306 could be overwritten at the end of the current message (or the start of a
3307 new message if it was set in a HELO ACL). The value is now preserved for
3308 the duration of the SMTP connection.
3309
331012. If a transport had a headers_rewrite setting, and a matching header line
3311 contained an unqualified address, that address was qualified, even if it
3312 did not match any rewriting rules. The underlying bug was that the values
3313 of the flags that permit the existence of unqualified sender and recipient
3314 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3315 non-local messages, and by -bnq for local messages) were not being
3316 preserved with the message after it was received.
3317
331813. When Exim was logging an SMTP synchronization error, it could sometimes log
3319 "next input=" as part of the text comprising the host identity instead of
3320 the correct text. The code was using the same buffer for two different
3321 strings. However, depending on which order the printing function evaluated
3322 its arguments, the bug did not always show up. Under Linux, for example, my
3323 test suite worked just fine.
3324
332514. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3326 doesn't work with some older versions of Perl. It has been changed to "my",
3327 which in any case is probably the better facility to use.
3328
332915. A really picky compiler found some instances of statements for creating
3330 error messages that either had too many or two few arguments for the format
3331 string.
3332
333316. The size of the buffer for calls to the DNS resolver has been increased
3334 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3335 for addresses that have a lot of PTR records. This alleviates a problem; it
3336 does not fully solve it.
3337
333817. A dnsdb lookup for PTR records that receives more data than will fit in the
3339 buffer now truncates the list and logs the incident, which is the same
3340 action as happens when Exim is looking up a host name and its aliases.
3341 Previously in this situation something unpredictable would happen;
3342 sometimes it was "internal error: store_reset failed".
3343
334418. If a server dropped the connection unexpectedly when an Exim client was
3345 using GnuTLS and trying to read a response, the client delivery process
3346 crashed while trying to generate an error log message.
3347
334819. If a "warn" verb in an ACL added multiple headers to a message in a single
3349 string, for example:
3350
3351 warn message = H1: something\nH2: something
3352
3353 the text was added as a single header line from Exim's point of view
3354 though it ended up OK in the delivered message. However, searching for the
3355 second and subsequent header lines using $h_h2: did not work. This has been
3356 fixed. Similarly, if a system filter added multiple headers in this way,
3357 the routers could not see them.
3358
335920. Expanded the error message when iplsearch is called with an invalid key to
3360 suggest using net-iplsearch in a host list.
3361
336221. When running tests using -bh, any delays imposed by "delay" modifiers in
3363 ACLs are no longer actually imposed (and a message to that effect is
3364 output).
3365
336622. If a "gecos" field in a passwd entry contained escaped characters, in
3367 particular, if it contained a \" sequence, Exim got it wrong when building
3368 a From: or a Sender: header from that name. A second bug also caused
3369 incorrect handling when an unquoted " was present following a character
3370 that needed quoting.
3371
337223. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3373 was not being matched caselessly.
3374
337524. Arranged for all hyphens in the exim.8 source to be escaped with
3376 backslashes.
3377
337825. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3379 properly. Recipient callout cache records were still being keyed to include
3380 the sender, even when use_sender was set false. This led to far more
3381 callouts that were necessary. The sender is no longer included in the key
3382 when use_sender is false.
3383
338426. Added "control = submission" modifier to ACLs.
3385
338627. Added the ${base62d: operator to decode base 62 numbers.
3387
338828. dnsdb lookups can now access SRV records.
3389
339029. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3391 the configuration file.
3392
339330. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3394 (-v) mode. This makes the output for a verbose queue run more intelligible.
3395
339631. Added a use_postmaster feature to recipient callouts.
3397
339832. Added the $body_zerocount variable, containing the number of binary zero
3399 bytes in the message body.
3400
340133. The time of last modification of the "new" subdirectory is now used as the
3402 "mailbox time last read" when there is a quota error for a maildir
3403 delivery.
3404
340534. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3406
340735. Added +ignore_unknown as a special item in host lists.
3408
340936. Code for decoding IPv6 addresses in host lists is now included, even if
3410 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3411 address was recognized as an IP address, but was then not correctly decoded
3412 into binary, causing unexpected and incorrect effects when compared with
3413 another IP address.
3414
3415
3416Exim version 4.34
3417-----------------
3418
3419 1. Very minor rewording of debugging text in manualroute to say "list of
3420 hosts" instead of "hostlist".
3421
3422 2. If verify=header_syntax was set, and a header line with an unqualified
3423 address (no domain) and a large number of spaces between the end of the
3424 name and the colon was received, the reception process suffered a buffer
3425 overflow, and (when I tested it) crashed. This was caused by some obsolete
3426 code that should have been removed. The fix is to remove it!
3427
3428 3. When running in the test harness, delay a bit after writing a bounce
3429 message to get a bit more predictability in the log output.
3430
3431 4. Added a call to search_tidyup() just before forking a reception process. In
3432 theory, someone could use a lookup in the expansion of smtp_accept_max_
3433 per_host which, without the tidyup, could leave open a database connection.
3434
3435 5. Added the variables $recipient_data and $sender_data which get set from a
3436 lookup success in an ACL "recipients" or "senders" condition, or a router
3437 "senders" option, similar to $domain_data and $local_part_data.
3438
3439 6. Moved the writing of debug_print from before to after the "senders" test
3440 for routers.
3441
3442 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3443 problems for message scanning, either using a data ACL, or using
3444 local_scan() because the Received: header was not generated till after they
3445 were called (in order to set the time as the time of reception completion).
3446 I have revised the way this works. The header is now generated after the
3447 body is received, but before the ACL or local_scan() are called. After they
3448 are run, the timestamp in the header is updated.
3449
3450
3451Exim version 4.33
3452-----------------
3453
3454 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3455 before starting a queue runner without re-exec. This happened only when
3456 deliver_drop_privilege was set or when the Exim user was set to root. The
3457 effect of the bug was that timeouts during subsequent deliveries caused
3458 crashes instead of being properly handled. The handler is now left at its
3459 default (and expected) setting.
3460
3461 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3462 message, again when deliver_drop_privilege is set or Exim is run as root.
3463 The bug described in (1) was not present in this case, but the tidying up
3464 of the other signals was missing. I have made the two cases consistent.
3465
3466 3. The ignore_target_hosts setting on a manualroute router was being ignored
3467 for hosts that were looked up using the /MX notation.
3468
3469 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3470 in domain lists.
3471
3472 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3473 operated on the sender address. After changing the $sender_address to <>
3474 for the sender address verify, Exim was re-instated it as the original
3475 (before rewriting) address, but remembering that it had rewritten it, so it
3476 wasn't rewriting it again. This bug also had the effect of breaking the
3477 sender address verification caching when the sender address was rewritten.
3478
3479 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3480 This has been changed so that if the ip literal address matches
3481 ignore_target_hosts, the router declines.
3482
3483 7. Added expansion conditions match_domain, match_address, and match_local_
3484 part (NOT match_host).
3485
3486 8. The placeholder for the Received: header didn't have a length field set.
3487
3488 9. Added code to Exim itself and to exim_lock to test for a specific race
3489 condition that could lead to file corruption when using MBX delivery. The
3490 issue is with the lockfile that is created in /tmp. If this file is removed
3491 after a process has opened it but before that process has acquired a lock,
3492 there is the potential for a second process to recreate the file and also
3493 acquire a lock. This could lead to two Exim processes writing to the file
3494 at the same time. The added code performs the same test as UW imapd; it
3495 checks after acquiring the lock that its file descriptor still refers to
3496 the same named file.
3497
349810. The buffer for building added header lines was of fixed size, 8192 bytes.
3499 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3500 when Exim is built.
3501
350211. Added the smtp_active_hostname option. If used, this will typically be made
3503 to depend on the incoming interface address. Because $interface_address is
3504 not set up until the daemon has forked a reception process, error responses
3505 that can happen earlier (such as "too many connections") no longer contain
3506 a host name.
3507
350812. If an expansion in a condition on a "warn" statement fails because a lookup
3509 defers, the "warn" statement is abandoned, and the next ACL statement is
3510 processed. Previously this caused the whole ACL to be aborted.
3511
351213. Added the iplsearch lookup type.
3513
351414. Added ident_timeout as a log selector.
3515
351615. Added tls_certificate_verified as a log selector.
3517
351816. Added a global option tls_require_ciphers (compare the smtp transport
3519 option of the same name). This controls incoming TLS connections.
3520