Correction changelog bug id. Fixes: #622
[exim.git] / doc / doc-txt / ChangeLog
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d5c39246 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.573 2009/10/16 12:49:43 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
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55 Patch provided by Jan Srzednicki
56
89dec7b6
TF
57TF/05 Leading white space used to be stripped from $spam_report which
58 wrecked the formatting. Now it is preserved.
5f28a6e8 59
a99de90c
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
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63TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
64
7199e1ee
TF
65TF/08 TLS error reporting now respects the incoming_interface and
66 incoming_port log selectors.
67
e276e04b
TF
68TF/09 Produce a more useful error message if an SMTP transport's hosts
69 setting expands to an empty string.
70
ce552449
NM
71NM/06 Bugzilla 744: EXPN did not work under TLS.
72 Patch provided by Phil Pennock
73
e765a0f1
NM
74NM/07 Bugzilla 769: Extraneous comma in usage fprintf
75 Patch provided by Richard Godbee
76
4f054c63 77NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 78 acl_smtp_notquit, added index entry.
4f054c63 79
24c929a2
NM
80NM/09 Bugzilla 787: Potential buffer overflow in string_format
81 Patch provided by Eugene Bujak
82
cf73943b
NM
83NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
84 Patch provided by Maxim Dounin
85
b52bc06e
NM
86NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
87 Patch provided by Phil Pennock
88
447de4b0
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
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102NM/16 Bugzilla 851: Documentation example syntax fix.
103
104NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 105
dbb0bf41
NM
106NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
107
f3766eb5
NM
108NM/19 Bugzilla 745: TLS version reporting
109 Patch provided by Phil Pennock
110
111NM/20 Bugzilla 167: bool: condition support
112 Patch provided by Phil Pennock
36f12725 113
e6060e2c
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114NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
115 Patch provided by Phil Pennock
116
7496b417 117NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
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118 Patch provided by Brad "anomie" Jorsch
119
deafd5b3 120
47db1125
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121Exim version 4.69
122-----------------
123
4b3504d0
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124TK/01 Add preliminary DKIM support. Currently requires a forked version of
125 ALT-N's libdkim that I have put here:
126 http://duncanthrax.net/exim-experimental/
127
128 Note to Michael Haardt: I had to rename some vars in sieve.c. They
129 were called 'true' and it seems that C99 defines that as a reserved
130 keyword to be used with 'bool' variable types. That means you could
131 not include C99-style headers which use bools without triggering
132 build errors in sieve.c.
133
81ea09ca
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134NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
135 as mailq or other aliases. Changed the --help handling significantly
136 to do whats expected. exim_usage() emits usage/help information.
137
f13cddcb
SC
138SC/01 Added the -bylocaldomain option to eximstats.
139
8ad076b2
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140NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
141
a843aaa6
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142NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
143
47db1125
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144NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
145
146
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147Exim version 4.68
148-----------------
149
150PH/01 Another patch from the Sieve maintainer.
151
6a3bceb1
PH
152PH/02 When an IPv6 address is converted to a string for single-key lookup
153 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
154 dots are used instead of colons so that keys in lsearch files need not
155 contain colons. This was done some time before quoting was made available
156 in lsearch files. However, iplsearch files do require colons in IPv6 keys
157 (notated using the quote facility) so as to distinguish them from IPv4
158 keys. This meant that lookups for IP addresses in host lists did not work
159 for iplsearch lookups.
160
161 This has been fixed by arranging for IPv6 addresses to be expressed with
162 colons if the lookup type is iplsearch. This is not incompatible, because
163 previously such lookups could never work.
164
165 The situation is now rather anomolous, since one *can* have colons in
166 ordinary lsearch keys. However, making the change in all cases is
167 incompatible and would probably break a number of configurations.
168
2e30fa9d
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169TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
170 version.
171
0806a9c5
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172MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
173 conversion specification without a maximum field width, thereby enabling
174 a rogue spamd server to cause a buffer overflow. While nobody in their
175 right mind would setup Exim to query an untrusted spamd server, an
176 attacker that gains access to a server running spamd could potentially
177 exploit this vulnerability to run arbitrary code as the Exim user.
178
ae276964
TK
179TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
180 $primary_hostname instead of what libspf2 thinks the hosts name is.
181
0f2cbd1b
MH
182MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
183 a directory entry by the name of the lookup key. Previously, if a
184 symlink pointed to a non-existing file or a file in a directory that
185 Exim lacked permissions to read, a lookup for a key matching that
186 symlink would fail. Now it is enough that a matching directory entry
187 exists, symlink or not. (Bugzilla 503.)
188
2b85bce7
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189PH/03 The body_linecount and body_zerocount variables are now exported in the
190 local_scan API.
191
93655c46
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192PH/04 Added the $dnslist_matched variable.
193
6c512171
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194PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
195 This means they are set thereafter only if the connection becomes
196 encrypted.
197
198PH/06 Added the client_condition to authenticators so that some can be skipped
199 by clients under certain conditions.
200
aa6dc513
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201PH/07 The error message for a badly-placed control=no_multiline_responses left
202 "_responses" off the end of the name.
203
a96603a0
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204PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
205
8f240103
PH
206PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
207 (without spaces) instead of just copying the configuration text.
208
209PH/10 Added the /noupdate option to the ratelimit ACL condition.
210
d677b2f2
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211PH/11 Added $max_received_linelength.
212
d52120f2
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213PH/12 Added +ignore_defer and +include_defer to host lists.
214
64f2600a
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215PH/13 Installed PCRE version 7.2. This needed some changes because of the new
216 way in which PCRE > 7.0 is built.
217
8669f003
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218PH/14 Implemented queue_only_load_latch.
219
a4dc33a8
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220PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
221 MAIL command. The effect was to mangle the value on 64-bit systems.
222
d6a60c0f
PH
223PH/16 Another patch from the Sieve maintainer.
224
8f128379
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225PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
226
8932dffe
PH
227PH/18 If a system quota error occurred while trying to create the file for
228 a maildir delivery, the message "Mailbox is full" was not appended to the
229 bounce if the delivery eventually timed out. Change 4.67/27 below applied
230 only to a quota excession during the actual writing of the file.
d6a60c0f 231
ddea74fa 232PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
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233 characters?) which causes problems in log lines. The DN values are now
234 passed through string_printing() before being added to log lines.
235
ddea74fa 236PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
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237 and InterBase are left for another time.)
238
ddea74fa
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239PH/21 Added message_body_newlines option.
240
ce9f225c
PH
241PH/22 Guard against possible overflow in moan_check_errorcopy().
242
19897d52
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243PH/23 POSIX allows open() to be a macro; guard against that.
244
bc64a74d
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245PH/24 If the recipient of an error message contained an @ in the local part
246 (suitably quoted, of course), incorrect values were put in $domain and
247 $local_part during the evaluation of errors_copy.
248
eb4c0de6 249
b4ed4da0
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250Exim version 4.67
251-----------------
252
22ad45c9
MH
253MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
254 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
255 Jan Srzednicki.
256
b4ed4da0
PH
257PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
258 issue a MAIL command.
259
431b7361
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260PH/02 In an ACL statement such as
261
262 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
263
264 if a client was not listed at all, or was listed with a value other than
265 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
266 the condition was not true (as it should be), so access was not denied.
267 The bug was that the ! inversion was incorrectly passed on to the second
268 item. This has been fixed.
269
270PH/03 Added additional dnslists conditions == and =& which are different from
271 = and & when the dns lookup returns more than one IP address.
272
83da1223
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273PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
274 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
275
54fc8428
PH
276PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
277 FSYNC, which compiles an option called disable_fsync that allows for
278 bypassing fsync(). The documentation is heavily laced with warnings.
279
34c5e8dd
SC
280SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
281
bbe15da8
PH
282PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
283 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
284 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
285 including adding "make clean"; (3) Added -fPIC when compiling the test
286 dynamically loaded module, to get rid of a warning.
287
0e8a9471
MH
288MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
289 message fails, move_frozen_messages = true and ignore_bounce_errors_after
290 = 0s. The bug is otherwise harmless.
291
f0872424
PH
292PH/07 There was a bug in the dovecot authenticator such that the value of
293 $auth1 could be overwritten, and so not correctly preserved, after a
294 successful authentication. This usually meant that the value preserved by
295 the server_setid option was incorrect.
296
b01dd148
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297PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
298
6bf342e1
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299PH/09 Installed PCRE release 7.0.
300
273f34d0
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301PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
302 run for batched SMTP input. It is now run at the start of every message
303 in the batch. While fixing this I discovered that the process information
304 (output by running exiwhat) was not always getting set for -bs and -bS
305 input. This is fixed, and it now also says "batched" for BSMTP.
306
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307PH/11 Added control=no_pipelining.
308
41c7c167
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309PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
310 patch, slightly modified), and move the expansion of helo_data till after
311 the connection is made in the smtp transport (so it can use these
312 values).
313
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314PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
315
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316PH/14 Added log_selector = +pid.
317
047bdd8c
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318PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
319
0ce9abe6
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320PH/16 Add ${if forany and ${if forall.
321
0e22dfd1
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322PH/17 Added dsn_from option to vary the From: line in DSNs.
323
4c590bd1
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324PH/18 Flush SMTP output before performing a callout, unless control =
325 no_callout_flush is set.
326
09945f1e
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327PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
328 was true (the default) a successful delivery failed to delete the retry
329 item, thus causing premature timeout of the address. The bug is now
330 fixed.
331
c51b8e75
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332PH/20 Added hosts_avoid_pipelining to the smtp transport.
333
e28326d8
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334PH/21 Long custom messages for fakedefer and fakereject are now split up
335 into multiline reponses in the same way that messages for "deny" and
336 other ACL rejections are.
337
75b1493f
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338PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
339 with slight modification.
340
7c5214ec
PH
341PH/23 Applied sieve patches from the maintainer "tracking the latest notify
342 draft, changing the syntax and factoring some duplicate code".
343
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344PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
345 for deliveries of the second and subsequent messages over the same SMTP
346 connection.
347
29f89cad
PH
348PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
349 ${reduce, with only minor "tidies".
350
5e687460
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351SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
352
c3611384
PH
353PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
354 expansion side effects.
355
5a11a7b4
PH
356PH/27 When a message times out after an over-quota error from an Exim-imposed
357 quota, the bounce message says "mailbox is full". This message was not
358 being given when it was a system quota that was exceeded. It now should
359 be the same.
360
0e20aff9
MH
361MH/03 Made $recipients available in local_scan(). local_scan() already has
362 better access to the recipient list through recipients_list[], but
363 $recipients can be useful in postmaster-provided expansion strings.
364
ca86f471
PH
365PH/28 The $smtp_command and $smtp_command_argument variables were not correct
366 in the case of a MAIL command with additional options following the
367 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
368 were accidentally chopped off.
369
a14e5636
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370PH/29 SMTP synchronization checks are implemented when a command is read -
371 there is a check that no more input is waiting when there shouldn't be
372 any. However, for some commands, a delay in an ACL can mean that it is
373 some time before the response is written. In this time, more input might
374 arrive, invalidly. So now there are extra checks after an ACL has run for
375 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
376 pipelining has not been advertised.
377
ec95d1a6
PH
378PH/30 MH's patch to allow iscntrl() characters to be list separators.
379
42855d71
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380PH/31 Unlike :fail:, a custom message specified with :defer: was not being
381 returned in the SMTP response when smtp_return_error_details was false.
382 This has been fixed.
383
57c2c631
PH
384PH/32 Change the Dovecot authenticator to use read() and write() on the socket
385 instead of the C I/O that was originally supplied, because problems were
386 reported on Solaris.
387
58c01c94
PH
388PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
389 Exim which did not show up earlier: it was assuming that a call to
390 SSL_CTX_set_info_callback() might give an error value. In fact, there is
391 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
392 was a macro that became an assignment, so it seemed to work. This has
393 changed to a proper function call with a void return, hence the compile
394 error. Exim's code has been fixed.
395
dee5a20a
PH
396PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
397 cpus.
398
d2ee6114
PH
399PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
400
b2d5182b
PH
401PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
402
79749a79
PH
403PH/37 If a message is not accepted after it has had an id assigned (e.g.
404 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
405 "Completed" line in the log. When some messages of this type were
406 selected by exigrep, they were listed as "not completed". Others were
407 picked up by some special patterns. I have improved the selection
408 criteria to be more general.
79749a79 409
c456d9bb
PH
410PH/38 The host_find_failed option in the manualroute router can now be set
411 to "ignore", to completely ignore a host whose IP address cannot be
412 found. If all hosts are ignored, the behaviour is controlled by the new
413 host_all_ignored option.
414
cd9868ec
PH
415PH/39 In a list of hosts for manualroute, if one item (either because of multi-
416 homing or because of multiple MX records with /mx) generated more than
417 one IP address, and the following item turned out to be the local host,
418 all the secondary addresses of the first item were incorrectly removed
419 from the list, along with the local host and any following hosts (which
420 is what is supposed to happen).
421
ebeaf996
PH
422PH/40 When Exim receives a message, it writes the login name, uid, and gid of
423 whoever called Exim into the -H file. In the case of the daemon it was
424 behaving confusingly. When first started, it used values for whoever
425 started the daemon, but after a SIGHUP it used the Exim user (because it
426 calls itself on a restart). I have changed the code so that it now always
427 uses the Exim user.
428
2679d413
PH
429PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
430 message are rejected with the same error (e.g. no authentication or bad
431 sender address), and a DATA command is nevertheless sent (as can happen
432 with PIPELINING or a stupid MUA), the error message that was given to the
433 RCPT commands is included in the rejection of the DATA command. This is
434 intended to be helpful for MUAs that show only the final error to their
435 users.
436
84024b72
PH
437PH/42 Another patch from the Sieve maintainer.
438
8005d38e
SC
439SC/02 Eximstats - Differentiate between permanent and temporary rejects.
440 Eximstats - Fixed some broken HTML links and added missing column headers
441 (Jez Hancock).
442 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
443 columns for Rejects, Temp Rejects, Ham, and Spam rows.
444
3298c6c6
SC
445SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
446
a43a27c5
PH
447PH/43 Yet another patch from the Sieve maintainer.
448
58eb016e 449PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
450 the response to the final '.' that terminates a message, but only in the
451 case where the client has not sent further data following the '.'
452 (unfortunately, this is allowed). However, in many cases there won't be
453 any further data because there won't be any more messages to send. A call
454 to select() can be used: if it shows that the input is "ready", there is
455 either input waiting, or the socket has been closed. An attempt to read
456 the next input character can distinguish the two cases. Previously, Exim
58eb016e 457 would have sent an OK response which the client would never have see.
563b63fa
PH
458 This could lead to message repetition. This fix should cure that, at
459 least in a lot of common cases.
58eb016e 460
b43a74ea
PH
461PH/45 Do not advertise STARTTLS in response to HELP unless it would be
462 advertised in response to EHLO.
463
b4ed4da0 464
5dd1517f
PH
465Exim version 4.66
466-----------------
467
468PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
469 fixed by 4.65/MH/01 (is this a record?) are fixed:
470
471 (i) An empty string was always treated as zero by the numeric comparison
472 operators. This behaviour has been restored.
473
474 (ii) It is documented that the numeric comparison operators always treat
475 their arguments as decimal numbers. This was broken in that numbers
476 starting with 0 were being interpreted as octal.
477
478 While fixing these problems I realized that there was another issue that
479 hadn't been noticed. Values of message_size_limit (both the global option
480 and the transport option) were treated as octal if they started with 0.
481 The documentation was vague. These values are now always treated as
482 decimal, and I will make that clear in the documentation.
483
484
93cfa765
TK
485Exim version 4.65
486-----------------
487
488TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
489 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
490 versions. (#438)
491
d6066548
MH
492MH/01 Don't check that the operands of numeric comparison operators are
493 integers when their expansion is in "skipping" mode (fixes bug
494 introduced by 4.64-PH/07).
495
4362ff0d
PH
496PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
497 child addresses, Exim now panics and dies. Previously, because the count
498 is held in a short int, deliveries were likely to be lost. As such a
499 large number of recipients for a single message is ridiculous
500 (performance will be very, very poor), I have chosen to impose a limit
501 rather than extend the field.
502
93cfa765 503
944e9e9c
TF
504Exim version 4.64
505-----------------
aa41d2de 506
21d74bd9
TK
507TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
508 leftover -K file (the existence of which was triggered by #402).
509 While we were at it, introduced process PID as part of the -K
510 filename. This should rule out race conditions when creating
511 these files.
512
513TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
514 processing considerably. Previous code took too long for large mails,
515 triggering a timeout which in turn triggers #401.
516
517TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
518 in the DK code in transports.c. sendfile() is not really portable,
519 hence the _LINUX specificness.
944e9e9c
TF
520
521TF/01 In the add_headers option to the mail command in an Exim filter,
522 there was a bug that Exim would claim a syntax error in any
523 header after the first one which had an odd number of characters
524 in the field name.
525
2b1c6e3a
PH
526PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
527 callout verification, Exim cached a "reject" for the entire domain. This
528 is correct for most verifications, but it is not correct for a recipient
529 verification with use_sender or use_postmaster set, because in that case
530 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
531 case of MAIL FROM:<> rejection from other early rejections (e.g.
532 rejection of HELO). When verifying a recipient using a non-null MAIL
533 address, the cache is ignored if it shows MAIL FROM:<> rejection.
534 Whatever the result of the callout, the value of the domain cache is
535 left unchanged (for any other kind of callout, getting as far as trying
536 RCPT means that the domain itself is ok).
537
1f872c80
PH
538PH/02 Tidied a number of unused variable and signed/unsigned warnings that
539 gcc 4.1.1 threw up.
540
541PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
542 manifest itself as EPIPE rather than ECONNECT. When tidying away a
543 session, the daemon ignores ECONNECT errors and logs others; it now
544 ignores EPIPE as well.
545
d203e649
PH
546PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
547 (quoted-printable decoding).
548
cc2ed8f7 549PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 550 later the small subsequent patch to fix an introduced bug.
f951fd57 551
ddfcd446
PH
552PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
553
d45b1de8
PH
554PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
555
556PH/08 An error is now given if message_size_limit is specified negative.
557
38a0a95f 558PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 559 to be given (somewhat) arbitrary names.
38a0a95f 560
a2405d83
JJ
561JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
562 in 4.64-PH/09.
563
564JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
565 miscellaneous code fixes
566
6ea85e9a
PH
567PH/10 Added the log_reject_target ACL modifier to specify where to log
568 rejections.
569
26da7e20
PH
570PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
571 hostname. This is wrong, because it relates to the incoming message (and
572 probably the interface on which it is arriving) and not to the outgoing
573 callout (which could be using a different interface). This has been
574 changed to use the value of the helo_data option from the smtp transport
575 instead - this is what is used when a message is actually being sent. If
576 there is no remote transport (possible with a router that sets up host
577 addresses), $smtp_active_hostname is used.
6ea85e9a 578
14aa5a05 579PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 580 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
581 (a) The code assumed that strncpy() returns a negative number on buffer
582 overflow, which isn't the case. Replaced with Exim's string_format()
583 function.
584 (b) There were several signed/unsigned issues. I just did the minimum
585 hacking in of casts. There is scope for a larger refactoring.
586 (c) The code used strcasecmp() which is not a standard C function.
587 Replaced with Exim's strcmpic() function.
588 (d) The code set only $1; it now sets $auth1 as well.
589 (e) A simple test gave the error "authentication client didn't specify
590 service in request". It would seem that Dovecot has changed its
591 interface. Fortunately there's a specification; I followed it and
592 changed what the client sends and it appears to be working now.
593
ff75a1f7
PH
594PH/13 Added $message_headers_raw to provide the headers without RFC 2047
595 decoding.
596
e6f6568e
PH
597PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
598 address A is aliased to B and C, where B exists and C does not. Without
599 -v the output is "A verified" because verification stops after a
600 successful redirection if more than one address is generated. However,
601 with -v the child addresses are also verified. Exim was outputting "A
602 failed to verify" and then showing the successful verification for C,
603 with its parentage. It now outputs "B failed to verify", showing B's
604 parentage before showing the successful verification of C.
605
d6f6e0dc
PH
606PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
607 look up a TXT record in a specific list after matching in a combined
608 list.
609
322050c2
PH
610PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
611 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
612 they consult the DNS. I had assumed they would set it the way they
613 wanted; and indeed my experiments on Linux seem to show that in some
614 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
615 To be on the safe side, however, I have now made the interface to
616 host_find_byname() similar to host_find_bydns(), with an argument
617 containing the DNS resolver options. The host_find_byname() function now
618 sets these options at its start, just as host_find_bydns() does. The smtp
619 transport options dns_qualify_single and dns_search_parents are passed to
620 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
621 of host_find_byname() use the default settings of RES_DEFNAMES
622 (qualify_single) but not RES_DNSRCH (search_parents).
623
08955dd3
PH
624PH/17 Applied (a modified version of) Nico Erfurth's patch to make
625 spool_read_header() do less string testing, by means of a preliminary
626 switch on the second character of optional "-foo" lines. (This is
627 overdue, caused by the large number of possibilities that now exist.
628 Originally there were few.) While I was there, I also converted the
629 str(n)cmp tests so they don't re-test the leading "-" and the first
630 character, in the hope this might squeeze out yet more improvement.
631
1eccaa59
PH
632PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
633 flag allowing group syntax was set by the header_syntax check but not
634 turned off, possible causing trouble later; (2) The flag was not being
635 set at all for the header_verify test, causing "group"-style headers to
636 be rejected. I have now set it in this case, and also caused header_
637 verify to ignore an empty address taken from a group. While doing this, I
638 came across some other cases where the code for allowing group syntax
639 while scanning a header line wasn't quite right (mostly, not resetting
640 the flag correctly in the right place). These bugs could have caused
641 trouble for malformed header lines. I hope it is now all correct.
642
602e59e5
PH
643PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
644 with the "reply" argument non-NULL. The code, however (which originally
645 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
646 but it didn't always do it. This confused somebody who was copying the
647 code for some other use. I have removed all the tests.
648
411ef850
PH
649PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
650 feature that was used to support insecure browsers during the U.S. crypto
651 embargo. It requires special client support, and Exim is probably the
652 only MTA that supported it -- and would never use it because real RSA is
653 always available. This code has been removed, because it had the bad
654 effect of slowing Exim down by computing (never used) parameters for the
655 RSA_EXPORT functionality.
656
7befa435
PH
657PH/21 On the advice of Timo Sirainen, added a check to the dovecot
658 authenticator to fail if there's a tab character in the incoming data
659 (there should never be unless someone is messing about, as it's supposed
660 to be base64-encoded). Also added, on Timo's advice, the "secured" option
661 if the connection is using TLS or if the remote IP is the same as the
662 local IP, and the "valid-client-cert option" if a client certificate has
663 been verified.
664
48da4259 665PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
666 authenticators. This can be used for authorization after authentication
667 succeeds. (In the case of plaintext, it servers for both authentication
668 and authorization.)
669
48da4259
PH
670PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
671 if any retry times were supplied.
672
d1d5595c
PH
673PH/24 Exim crashed if verify=helo was activated during an incoming -bs
674 connection, where there is no client IP address to check. In this
675 situation, the verify now always succeeds.
676
0ef732d9
PH
677PH/25 Applied John Jetmore's -Mset patch.
678
328895cc
PH
679PH/26 Added -bem to be like -Mset, but loading a message from a file.
680
fd700877
PH
681PH/27 In a string expansion for a processed (not raw) header when multiple
682 headers of the same name were present, leading whitespace was being
683 removed from all of them, but trailing whitespace was being removed only
684 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
685 before concatenation. Completely empty headers in a concatenation (as
686 before) are ignored.
fd700877 687
8dce1a6f
PH
688PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
689 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
690
17af4a17
PH
691PH/29 [Removed. This was a change that I later backed out, and forgot to
692 correct the ChangeLog entry (that I had efficiently created) before
693 committing the later change.]
f6c332bd
PH
694
695PH/30 Exim was sometimes attempting to deliver messages that had suffered
696 address errors (4xx response to RCPT) over the same connection as other
697 messages routed to the same hosts. Such deliveries are always "forced",
698 so retry times are not inspected. This resulted in far too many retries
699 for the affected addresses. The effect occurred only when there were more
700 hosts than the hosts_max_try setting in the smtp transport when it had
701 the 4xx errors. Those hosts that it had tried were not added to the list
702 of hosts for which the message was waiting, so if all were tried, there
703 was no problem. Two fixes have been applied:
704
705 (i) If there are any address or message errors in an SMTP delivery, none
706 of the hosts (tried or untried) are now added to the list of hosts
707 for which the message is waiting, so the message should not be a
708 candidate for sending over the same connection that was used for a
709 successful delivery of some other message. This seems entirely
710 reasonable: after all the message is NOT "waiting for some host".
711 This is so "obvious" that I'm not sure why it wasn't done
712 previously. Hope I haven't missed anything, but it can't do any
713 harm, as the worst effect is to miss an optimization.
714
715 (ii) If, despite (i), such a delivery is accidentally attempted, the
716 routing retry time is respected, so at least it doesn't keep
717 hammering the server.
718
c1114884
PH
719PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
720 in ${readsocket because some servers need this prod.
721
7a0743eb
PH
722PH/32 Added some extra debug output when updating a wait-xxx database.
723
0d85fa3f
PH
724PH/33 The hint "could be header name not terminated by colon", which has been
725 given for certain expansion errors for a long time, was not being given
726 for the ${if def:h_colon_omitted{... case.
727
1bf43b78
PH
728PH/34 The spec says: "With one important exception, whenever a domain list is
729 being scanned, $domain contains the subject domain." There was at least
730 one case where this was not true.
731
520de300
PH
732PH/35 The error "getsockname() failed: connection reset by peer" was being
733 written to the panic log as well as the main log, but it isn't really
734 panic-worthy as it just means the connection died rather early on. I have
735 removed the panic log writing for the ECONNRESET error when getsockname()
736 fails.
737
48c7f9e2
PH
738PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
739 runs only) independently of the message's sender address. This meant
740 that, if the 4xx error was in fact related to the sender, a different
741 message to the same recipient with a different sender could confuse
742 things. In particualar, this can happen when sending to a greylisting
743 server, but other circumstances could also provoke similar problems.
744 I have changed the default so that the retry time for these errors is now
745 based a combination of the sender and recipient addresses. This change
746 can be overridden by setting address_retry_include_sender=false in the
747 smtp transport.
748
99ea1c86
PH
749PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
750 remote server are returned as part of bounce messages. This was not
751 happening for LMTP over a pipe (the lmtp transport), but now it is the
752 same for both kinds of LMTP.
753
a2042e78
PH
754PH/38 Despite being documented as not happening, Exim was rewriting addresses
755 in header lines that were in fact CNAMEs. This is no longer the case.
756
4fbcfc2e
PH
757PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
758 and queue runs started by the daemon processed all messages. This has
759 been fixed so that -R and -S can now usefully be given with -q<time>.
760
aa41d2de
PH
761PH/40 Import PCRE release 6.7 (fixes some bugs).
762
af561417
PH
763PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
764
3cc66b45
PH
765PH/42 Give an error if -q is specified more than once.
766
194cc0e4
PH
767PH/43 Renamed the variables $interface_address and $interface_port as
768 $received_ip_address and $received_port, to make it clear that these
769 values apply to message reception, and not to the outgoing interface when
770 a message is delivered. (The old names remain recognized, of course.)
771
a401ddaa
PH
772PH/44 There was no timeout on the connect() call when using a Unix domain
773 socket in the ${readsocket expansion. There now is.
774
4e88a19f
PH
775PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
776 be meaningful with "accept".
777
d7d7b289
SC
778SC/01 Eximstats V1.43
779 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
780
781SC/02 Eximstats V1.44
782 Use a glob alias rather than an array ref in the generated
783 parser. This improves both readability and performance.
784
785SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
786 Collect SpamAssassin and rejection statistics.
787 Don't display local sender or destination tables unless
788 there is data to show.
789 Added average volumes into the top table text output.
790
791SC/04 Eximstats V1.46
792 Collect data on the number of addresses (recipients)
793 as well as the number of messages.
794
795SC/05 Eximstats V1.47
796 Added 'Message too big' to the list of mail rejection
797 reasons (thanks to Marco Gaiarin).
798
799SC/06 Eximstats V1.48
800 Mainlog lines which have GMT offsets and are too short to
801 have a flag are now skipped.
802
803SC/07 Eximstats V1.49 (Alain Williams)
804 Added the -emptyok flag.
805
806SC/08 Eximstats V1.50
807 Fixes for obtaining the IP address from reject messages.
808
0ea2a468
JJ
809JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
810 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
811 whitesspace changes from 4.64-PH/27
812
813JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
814 match 4.64-PH/13
815
816JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
817 are found, allow negative numbers in numeric criteria)
818
819JJ/06 exipick.20061117.2, added new $message_body_missing variable
820
821JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
822 to match changes made in 4.64-PH/43
823
8a10f5a4
PH
824PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
825
30e18802
PH
826PH/47 Put in an explicit test for a DNS lookup of an address record where the
827 "domain" is actually an IP address, and force a failure. This locks out
828 those revolvers/nameservers that support "A-for-A" lookups, in
829 contravention of the specifications.
830
55728a4f
PH
831PH/48 When a host name was looked up from an IP address, and the subsequent
832 forward lookup of the name timed out, the host name was left in
833 $sender_host_name, contrary to the specification.
d7d7b289 834
d7837193
PH
835PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
836 restricted to single-key lookups, Exim was not diagnosing an error if
837 * or *@ was used with a query-style lookup.
838
87054a31
PH
839PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
840
ea2c01d2
MH
841MH/01 local_scan ABI version incremented to 1.1. It should have been updated
842 long ago, but noone interested enough thought of it. Let's just say that
843 the "1.1" means that there are some new functions that weren't there at
844 some point in the past.
845
e4fa6968
PH
846PH/51 Error processing for expansion failure of helo_data from an smtp
847 transport during callout processing was broken.
848
56f5d9bd
PH
849PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
850 tested/used via the -bh/-bhc/-bs options.
851
922e1c28
PH
852PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
853 bug, fixed in subsequent PCRE releases).
854
21eb6e72
PH
855PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
856 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
857
a0540757
PH
858PH/55 Check for a ridiculously long file name in exim_dbmbuild.
859
944e9e9c 860
478be7b0
SC
861Exim version 4.63
862-----------------
863
864SC/01 Use a glob alias rather than an array ref in eximstats generated
865 parser. This improves both readability and performance.
866
867SC/02 Collect SpamAssassin and rejection statistics in eximstats.
868 Don't display local sender or destination tables in eximstats unless
869 there is data to show.
870 Added average volumes into the eximstats top table text output.
871
872SC/03 Collect data on the number of addresses (recipients) as well
873 as the number of messages in eximstats.
874
2b965a65
TF
875TF/01 Correct an error in the documentation for the redirect router. Exim
876 does (usually) call initgroups() when daemonizing.
478be7b0 877
45b91596
PH
878TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
879 with consistent privilege compared to when running as a daemon.
478be7b0 880
c59f5781
TF
881TF/03 Note in the spec that $authenticated_id is not set for local
882 submissions from trusted users.
883
90fc3069
TF
884TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
885 Thanks to Dean Brooks <dean@iglou.com> for the patch.
886
6083aca0
TF
887TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
888 by adding some example configuration directives to the default
889 configuration file. A little bit of work is required to uncomment the
890 directives and define how usernames and passwords are checked, but
891 there is now a framework to start from.
892
765b530f
PH
893PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
894 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
895 without this. I don't know how relevant this is to other LDAP libraries.
896
4e167a8c
PH
897PH/02 Add the verb name to the "unknown ACL verb" error.
898
4608d683
PH
899PH/03 Magnus Holmgren's patch for filter_prepend_home.
900
b8dc3e4a
PH
901PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
902
5418e93b
PH
903PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
904 directory not expanded when it should be if an expanded home directory
905 was set for the address (which is overridden by the transport).
906
b4a9bda2
PH
907PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
908 libradius.
909
45b91596
PH
910PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
911 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
912 because it is too late at that time, and has no effect.
913
5547e2c5
PH
914PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
915 security issue with \' (bugzilla #107). I could not use the
916 PQescapeStringConn() function, because it needs a PGconn value as one of
917 its arguments.
918
dbcef0ea
PH
919PH/08 When testing addresses using -bt, indicate those final addresses that
920 are duplicates that would not cause an additional delivery. At least one
921 person was confused, thinking that -bt output corresponded to deliveries.
922 (Suppressing duplicates isn't a good idea as you lose the information
923 about possibly different redirections that led to the duplicates.)
924
25257489
PH
925PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
926 systems where poll() doesn't work, in particular OS X.
927
c816d124
PH
928PH/10 Added more information to debugging output for retry time not reached.
929
a9ccd69a
PH
930PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
931 operations in malware.c.
932
75fa1910
PH
933PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
934 signatures.
935
a7d7aa58
PH
936PH/13 If write_rejectlog was set false when logging was sent to syslog with
937 syslog_duplication set false, log lines that would normally be written
938 both the the main log and to the reject log were not written to syslog at
939 all.
940
42119b09
PH
941PH/14 In the default configuration, change the use of "message" in ACL warn
942 statements to "add_header".
943
41609df5
PH
944PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
945 not followed by a command (e.g. "seen endif").
946
a5bd321b
PH
947PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
948 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
949 latter.
950
e85a7ad5 951PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
952 so that it is now:
953
e85a7ad5
PH
954 ${if or { \
955 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
956 { match{$h_precedence:}{(?i)bulk|list|junk} } \
957 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
958 }{no}{yes}}
959
e85a7ad5
PH
960 The Auto-Submitted: and various List- headers are standardised, whereas I
961 don't think Precedence: ever was.
5dff5817 962
d8fe1c03
PH
963PH/18 Refactored debugging code in route_finduser() to show more information,
964 in particular, the error code if getpwnam() issues one.
965
16282d2b
PH
966PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
967 This is apparently needed in addition to the PH/07 change above to avoid
968 any possible encoding problems.
969
35d40a98
PH
970PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
971 but not after initializing Perl.
972
034d99ab
PH
973PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
974 output them only if debugging. By default they are written stderr,
975 apparently, which is not desirable.
976
6ec97b1b
PH
977PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
978 queries.
979
e22ca4ac
JJ
980JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
981 --not options
982
983JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
984
33d73e3b
PH
985PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
986 authenticated or an ident call has been made. Suppress the default
987 values for $authenticated_id and $authenticated_sender (but permit -oMai
988 and -oMas) when testing with -bh.
989
9ecb03f3
PH
990PH/24 Re-jigged the order of the tests in the default configuration so that the
991 tests for valid domains and recipients precede the DNS black list and CSA
992 tests, on the grounds that those ones are more expensive.
993
084efe8d
PH
994PH/25 Exim was not testing for a space following SMTP commands such as EHLO
995 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
996 This bug exists in every version of Exim that I still have, right back to
997 0.12.
998
366fc9f0
PH
999PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1000 However, an attempt to turn on case-sensitivity in a regex key by
1001 including (?-i) didn't work because the subject string was already
1002 lowercased, and the effects were non-intuitive. It turns out that a
1003 one-line patch can be used to allow (?-i) to work as expected.
1004
c59f5781 1005
c887c79e
TF
1006Exim version 4.62
1007-----------------
1008
1009TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1010 other effects) broke the use of negated acl sub-conditions.
1011
1cce3af8
PH
1012PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1013 patch).
1014
afb3eaaf
PH
1015PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1016 "Deny" causes Exim to reject the incoming connection with a 554 error.
1017 Unfortunately, if there is a major crisis, such as a disk failure,
1018 tcp-wrappers gives "deny", whereas what one would like would be some
1019 kind of temporary error. A kludge has been added to help with this.
1020 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1021 554 error is used if errno is still zero or contains ENOENT (which occurs
1022 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1023 451 error is used.
1024
e173618b
PH
1025PH/03 Add -lutil to the default FreeBSD LIBS setting.
1026
dd16e114
PH
1027PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1028 errors. Otherwise a message that provokes a temporary error (when other
1029 messages do not) can cause a whole host to time out.
1030
f7fd3850
PH
1031PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1032 addresses were routed directly to files or pipes from a redirect router.
1033 File deliveries just didn't batch; pipe deliveries might have suffered
1034 odd errors.
1035
d87df92c
PH
1036PH/06 A failure to get a lock for a hints database would erroneously always say
1037 "Failed to get write lock", even when it was really a read lock.
1038
7e9f683d
PH
1039PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1040 of 0600. This has been changed to use the value of the lockfile_mode
1041 option (which defaults to 0600).
1042
bfad5236
PH
1043PH/08 Applied small patch from the Sieve maintainer.
1044
01c490df
PH
1045PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1046 folder from quota calculations, a direct delivery into this folder messed
1047 up the contents of the maildirsize file. This was because the regex was
1048 used only to exclude .Trash (or whatever) when the size of the mailbox
1049 was calculated. There was no check that a delivery was happening into an
1050 excluded directory. This bug has been fixed by ignoring all quota
1051 processing for deliveries into excluded directories.
1052
d6629cdc
PH
1053PH/10 Added the maildirfolder_create_regex option to appendfile.
1054
1cce3af8 1055
214e2000
PH
1056Exim version 4.61
1057-----------------
1058
1059PH/01 The code for finding all the local interface addresses on a FreeBSD
1060 system running IPv6 was broken. This may well have applied to all BSD
1061 systems, as well as to others that have similar system calls. The broken
1062 code found IPv4 interfaces correctly, but gave incorrect values for the
1063 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1064 that it would not match correctly against @[] and not recognize the IPv6
1065 addresses as local.
1066
f9daeae0
PH
1067PH/02 The ipliteral router was not recognizing addresses of the form user@
1068 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1069
7e66e54d
PH
1070PH/03 Added disable_ipv6.
1071
c8ea1597
PH
1072PH/04 Changed $reply_address to use the raw form of the headers instead of the
1073 decoded form, because it is most often used to construct To: headers
1074 lines in autoreplies, and the decoded form may well be syntactically
1075 invalid. However, $reply_address has leading white space removed, and all
1076 newlines turned into spaces so that the autoreply transport does not
1077 grumble.
1078
911f6fde
PH
1079PH/05 If group was specified without a user on a router, and no group or user
1080 was specified on a transport, the group from the router was ignored.
1081
47ca6d6c
PH
1082PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1083 for visible compile-time settings that can be used to change these
1084 numbers, for those that want even more. Backwards compatibility with old
1085 spool files has been maintained. However, going back to a previous Exim
1086 release will lost any variables that are in spool files.
1087
ed0e9820
PH
1088PH/07 Two small changes when running in the test harness: increase delay when
1089 passing a TCP/IP connection to a new process, in case the original
1090 process has to generate a bounce, and remove special handling of
1091 127.0.0.2 (sic), which is no longer necessary.
1092
eff37e47
PH
1093PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1094 be the same on different OS.
1095
1921d2ea
PH
1096PH/09 Moved a debug statement in filter processing to avoid a race problem when
1097 testing.
1098
b3f69ca8
JJ
1099JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1100 whether --show-vars was specified or not
1101
1102JJ/02 exipick: Added support for new ACL variable spool format introduced
1103 in 4.61-PH/06
1104
424a1c63
PH
1105PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1106 syntactically invalid From: or Reply-to: line, and a filter used this to
1107 generate an autoreply, and therefore failed to obtain an address for the
1108 autoreply, Exim could try to deliver to a non-existent relative file
1109 name, causing unrelated and misleading errors. What now happens is that
1110 it logs this as a hard delivery error, but does not attempt to create a
1111 bounce message.
1112
7a100415
PH
1113PH/11 The exinext utility has a -C option for testing purposes, but although
1114 the given file was scanned by exinext itself; it wasn't being passed on
1115 when Exim was called.
1116
19b9dc85
PH
1117PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1118 an end-of-file indication when reading a command response.
1119
309bd837
PH
1120PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1121 compiled. In many other places in Exim, IPv6 addresses are always
1122 recognized, so I have changed this. It also means that IPv4 domain
1123 literals of the form [IPV4:n.n.n.n] are now always recognized.
1124
59e82a2a
PH
1125PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1126 used if the router is not running as root, for example, when verifying at
1127 ACL time, or when using -bh. The debugging output from this situation was
1128 non-existent - all you got was a failure to exec. I have made two
1129 changes:
1130
1131 (a) Failures to set uid/gid, the current directory, or a process leader
1132 in a subprocess such as that created by queryprogram now generate
1133 suitable debugging ouput when -d is set.
1134
1135 (b) The queryprogram router detects when it is not running as root,
1136 outputs suitable debugging information if -d is set, and then runs
1137 the subprocess without attempting to change uid/gid.
1138
9edc04ce
PH
1139PH/15 Minor change to Makefile for building test_host (undocumented testing
1140 feature).
1141
1349e1e5
PH
1142PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1143 additional section of a DNS packet that returns MX or SRV records.
1144 Instead, it always explicitly searches for A/AAAA records. This avoids
1145 major problems that occur when a DNS server includes only records of one
1146 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1147 fixed another bug: if SRV records were looked up and the corresponding
1148 address records were *not* found in the additional section, the port
1149 values from the SRV records were lost.
1150
ea49d0e1
PH
1151PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1152 using the correct key (the original address) when searching the retry
1153 rules in order to find which one to use for generating the retry hint.
1154
064a94c9
PH
1155PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1156 adding the default one. Similarly, if it contains a Reply-To: header, the
1157 errors_reply_to option, if set, is not used.
1158
727071f8
PH
1159PH/19 When calculating a retry time, Exim used to measure the "time since
1160 failure" by looking at the "first failed" field in the retry record. Now
1161 it does not use this if it is later than than the arrival time of the
1162 message. Instead it uses the arrival time. This makes for better
1163 behaviour in cases where some deliveries succeed, thus re-setting the
1164 "first failed" field. An example is a quota failure for a huge message
1165 when small messages continue to be delivered. Without this change, the
1166 "time since failure" will always be short, possible causing more frequent
1167 delivery attempts for the huge message than are intended.
dd16e114 1168 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1169
f78eb7c6
PH
1170PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1171 $1, $2, $3) because the numerical variables can be reset during some
1172 expansion items (e.g. "match"), thereby losing the authentication data.
1173
21c28500
PH
1174PH/21 Make -bV show the size of off_t variables so that the test suite can
1175 decide whether to run tests for quotas > 2G.
1176
1177PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1178 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1179 filecount value is greater than 2G or if a quota value is greater than 2G
1180 on a system where the size of off_t is not greater than 4, a panic error
1181 is given.
1182
1688f43b
PH
1183PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1184 never match. The debug and -bh output now contains an explicit error
1185 message indicating a malformed IPv4 address or mask.
1186
1187PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1188 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1189 PH/23 above applies.
1190
9675b384
PH
1191PH/25 Do not write to syslog when running in the test harness. The only
1192 occasion when this arises is a failure to open the main or panic logs
1193 (for which there is an explicit test).
1194
6a3f1455
PH
1195PH/26 Added the /no_tell option to "control=freeze".
1196
dac79d3e
PH
1197PH/27 If a host name lookup failed very early in a connection, for example, if
1198 the IP address matched host_lookup and the reverse lookup yielded a name
1199 that did not have a forward lookup, an error message of the form "no IP
1200 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1201 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1202
5977a0b3
PH
1203PH/28 An enabling patch from MH: add new function child_open_exim2() which
1204 allows the sender and the authenticated sender to be set when
1205 submitting a message from within Exim. Since child_open_exim() is
1206 documented for local_scan(), the new function should be too.
1207
c91535f3
PH
1208PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1209 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1210 results in an empty string is now treated as unset.
1211
0d46a8c8
PH
1212PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1213
278c6e6c
PH
1214PH/31 Added sender_verify_fail logging option.
1215
2cbb4081
PH
1216PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1217 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1218 tidied the source and removed it altogether.
1219
3eef829e
PH
1220PH/33 When a queue run was abandoned because the load average was too high, a
1221 log line was always written; now it is written only if the queue_run log
1222 selector is set. In addition, the log line for abandonment now contains
1223 information about the queue run such as the pid. This is always present
1224 in "start" and "stop" lines but was omitted from the "abandon" line.
1225
1ab95fa6
PH
1226PH/34 Omit spaces between a header name and the colon in the error message that
1227 is given when verify = headers_syntax fails (if there are lots of them,
1228 the message gets confusing).
1229
230205fc
PH
1230PH/35 Change the default for dns_check_names_pattern to allow slashes within
1231 names, as there are now some PTR records that contain slashes. This check
1232 is only to protect against broken name servers that fall over on strange
1233 characters, so the fact that it applies to all lookups doesn't matter.
1234
75e0e026
PH
1235PH/36 Now that the new test suite is complete, we can remove some of the
1236 special code in Exim that was needed for the old test suite. For example,
1237 sorting DNS records because real resolvers return them in an arbitrary
1238 order. The new test suite's fake resolver always returns records in the
1239 same order.
1240
1241PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1242 bounces) except when queue_only is set, to avoid logging races between
1243 the different processes.
1244
145396a6
PH
1245PH/38 Panic-die if .include specifies a non-absolute path.
1246
3cd34f13
PH
1247PH/39 A tweak to the "H" retry rule from its user.
1248
11121d3d
JJ
1249JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1250 a label. They prevented compilation on older perls.
1251
1252JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1253 a warning to be raised on newish perls.
1254
1255JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1256 on queue. Changes to match documented behaviour of showing count of
1257 messages matching specified criteria.
1258
8def5aaf
PH
1259PH/40 Changed the default ident timeout from 30s to 5s.
1260
929ba01c
PH
1261PH/41 Added support for the use of login_cap features, on those BSD systems
1262 that have them, for controlling the resources used by pipe deliveries.
1263
2632889e
PH
1264PH/42 The content-scanning code uses fopen() to create files in which to put
1265 message data. Previously it was not paying any attention to the mode of
1266 the files. Exim runs with umask(0) because the rest of the code creates
1267 files with open(), and sets the required mode explicitly. Thus, these
1268 files were ending up world-writeable. This was not a big issue, because,
1269 being within the spool directory, they were not world-accessible. I have
1270 created a function called modefopen, which takes an additional mode
1271 argument. It sets umask(777), creates the file, chmods it to the required
1272 mode, then resets the umask. All the relevant calls to fopen() in the
1273 content scanning code have been changed to use this function.
1274
944a9c55
PH
1275PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1276 to 24 hours. This avoids potential overflow problems when processing G
1277 and H retry rules. I suspect nobody ever tinkers with this value.
1278
4a23603b
PH
1279PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1280
4730f942
PH
1281PH/45 When the plaintext authenticator is running as a client, the server's
1282 challenges are checked to ensure they are valid base64 strings. By
1283 default, the authentication attempt is cancelled if an invalid string is
1284 received. Setting client_ignore_invalid_base64 true ignores these errors.
1285 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1286 they are received. Thus, the responses can be made to depend on the
1287 challenges. If an invalid string is ignored, an empty string is placed in
1288 the variable.
1289
30dba1e6
PH
1290PH/46 Messages that are created by the autoreply transport now contains a
1291 References: header, in accordance with RFCs 2822 and 3834.
1292
382afc6b
PH
1293PH/47 Added authenticated_sender_force to the smtp transport.
1294
a86229cf
PH
1295PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1296
50c99ba6
PH
1297PH/49 Installed latest patch from the Sieve maintainer.
1298
d35e429d
PH
1299PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1300 was also set, the appendfile transport was unnecessarily scanning a
1301 directory of message files (e.g. for maildir delivery) to find the count
1302 of files (along with the size), even though it did not need this
1303 information. It now does the scan only if it needs to find either the
1304 size of the count of files.
1305
f90d018c
PH
1306PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1307
75def545
PH
1308PH/52 Two bugs concerned with error handling when the smtp transport is
1309 used in LMTP mode:
1310
1311 (i) Exim was not creating retry information for temporary errors given
1312 for individual recipients after the DATA command when the smtp transport
1313 was used in LMTP mode. This meant that they could be retried too
1314 frequently, and not timed out correctly.
1315
1316 (ii) Exim was setting the flag that allows error details to be returned
1317 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1318 recipients that were returned after the DATA command.
1319
1320PH/53 This is related to PH/52, but is more general: for any failing address,
1321 when detailed error information was permitted to be returned to the
1322 sender, but the error was temporary, then after the final timeout, only
1323 "retry timeout exceeded" was returned. Now it returns the full error as
1324 well as "retry timeout exceeded".
1325
c46782ef
PH
1326PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1327 do this, and (what is worse) MTAs that accept it.
1328
71fafd95
PH
1329PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1330 will now be deprecated.
1331
2c5db4fd
PH
1332PH/56 New os.c-cygwin from the Cygwin maintainer.
1333
9cf6b11a
JJ
1334JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1335 formats (previously only available in exim formats via -bpr, -bpru,
1336 and -bpra. Now also available in native and exiqgrep formats)
1337
1338JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1339 with very large, slow to parse queues
1340
1341JJ/08 exipick: added ! as generic prefix to negate any criteria format
1342
1343JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1344
898d150f
PH
1345PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1346 responses to authentication challenges, though it was showing the
1347 challenges; (ii) I've removed the CR characters from the debug output for
1348 SMTP output lines.
1349
46218253
PH
1350PH/58 Allow for the insertion of a newline as well as a space when a string
1351 is turned into more than one encoded-word during RFC 2047 encoding. The
1352 Sieve code now uses this.
1353
e97957bc
PH
1354PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1355 data_4xx, lost_connection, tls_required.
1356
81e509d7
PH
1357PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1358 message was being sent as an SMTP response.
1359
3d240ff7
PH
1360PH/61 Add -l and -k options to exicyclog.
1361
b37c4101
PH
1362PH/62 When verifying, if an address was redirected to one new address, so that
1363 verification continued, and the new address failed or deferred after
1364 having set something in $address_data, the value of $address_data was not
1365 passed back to the ACL. This was different to the case when no
1366 redirection occurred. The value is now passed back in both cases.
1367
79378e0f
PH
1368PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1369 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1370 use login_cap.h, so on its own it isn't the distinguishing feature. The
1371 new name refers directly to the setclassresources() function.
1372
e49c7bb4
PH
1373PH/65 Added configuration files for NetBSD3.
1374
d114ec46
PH
1375PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1376
f3d7df6c
PH
1377PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1378 is preferred over IPv4.
1379
715ab376
PH
1380PH/68 The bounce_return_message and bounce_return_body options were not being
1381 honoured for bounces generated during the reception of non-SMTP messages.
1382 In particular, this applied to messages rejected by the ACL. This bug has
1383 been fixed. However, if bounce_return_message is true and bounce_return_
1384 body is false, the headers that are returned for a non-SMTP message
1385 include only those that have been read before the error was detected.
1386 (In the case of an ACL rejection, they have all been read.)
1387
6b31b150
PH
1388PH/69 The HTML version of the specification is now built in a directory called
1389 spec_html instead of spec.html, because the latter looks like a path with
1390 a MIME-type, and this confuses some software.
1391
1392PH/70 Catch two compiler warnings in sieve.c.
1393
d515a917
PH
1394PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1395 function verify_get_ident() calls ip_connect() to connect a socket, but
1396 if the "connect()" function timed out, ip_connect() used to close the
1397 socket. However, verify_get_ident() also closes the socket later, and in
1398 between Exim writes to the log, which may get opened at this point. When
1399 the socket was closed in ip_connect(), the log could get the same file
1400 descriptor number as the socket. This naturally causes chaos. The fix is
1401 not to close the socket in ip_connect(); the socket should be closed by
1402 the function that creates it. There was only one place in the code where
1403 this was missing, in the iplookup router, which I don't think anybody now
1404 uses, but I've fixed it anyway.
1405
9b8fadde
PH
1406PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1407 well as to direct DNS lookups. Otherwise the handling of names in host
1408 lists is inconsistent and therefore confusing.
1409
214e2000 1410
5de37277
PH
1411Exim version 4.60
1412-----------------
1413
cc38ddbf
PH
1414PH/01 Two changes to the default runtime configuration:
1415
1416 (1) Move the checks for relay_from_hosts and authenticated clients from
1417 after to before the (commented out) DNS black list checks.
1418
1419 (2) Add control=submission to the relay_from_hosts and authenticated
1420 clients checks, on the grounds that messages accepted by these
1421 statements are most likely to be submissions.
5de37277 1422
72fdd6ae
PH
1423PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1424
1425 (1) Generate an error if the third argument for the ${prvs expansion is
1426 not a single digit.
1427
1428 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1429 string.
1430
1431 (3) Reset the variables that are obtained from the first argument of
1432 ${prvscheck and used in the second argument before leaving the code,
1433 because their memory is reclaimed, so using them afterwards may do
1434 silly things.
1435
1436 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1437 one (it's much easier than Tom thought :-).
1438
1439 (5) Because of (4), we can now allow for the use of $prvscheck_result
1440 inside the third argument.
cb9328de 1441
cb741023
PH
1442PH/03 For some reason, the default setting of PATH when running a command from
1443 a pipe transport was just "/usr/bin". I have changed it to
1444 "/bin:/usr/bin".
1445
f174f16e
PH
1446PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1447 anything to be listed in the output from -bV.
b2f5a032 1448
c25242d7
PH
1449PH/05 When a filter generated an autoreply, the entire To: header line was
1450 quoted in the delivery log line, like this:
1451
1452 => >A.N.Other <ano@some.domain> <original@ddress> ...
1453
1454 This has been changed so that it extracts the operative address. There
1455 may be more than one such address. If so, they are comma-separated, like
1456 this:
1457
1458 => >ano@some.domain,ona@other.domain <original@ddress> ...
1459
82c19f95
PH
1460PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1461 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1462 not being looked up in the rDNS to get a host name, Exim was showing the
1463 IP address twice in Received: lines, even though the IP addresses were
1464 identical. For example:
1465
1466 Received: from [1.2.3.4] (helo=[1.2.3.4])
1467
1468 However, if the real host name was known, it was omitting the HELO data
1469 if it matched the actual IP address. This has been tidied up so that it
1470 doesn't show the same IP address twice.
1471
d7ffbc12
PH
1472PH/07 When both +timestamp and +memory debugging was on, the value given by
1473 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1474 called by the debug printing, thereby overwriting the timestamp buffer.
1475 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1476
9f526266
PH
1477PH/08 When the original message was included in an autoreply transport, it
1478 always said "this is a copy of the message, including all the headers",
1479 even if body_only or headers_only was set. It now gives an appropriate
1480 message.
1481
87fcc8b9
PH
1482PH/09 Applied a patch from the Sieve maintainer which:
1483
1484 o fixes some comments
1485 o adds the (disabled) notify extension core
1486 o adds some debug output for the result of if/elsif tests
1487 o points to the current vacation draft in the documentation
1488 and documents the missing references header update
1489
1490 and most important:
1491
1492 o fixes a bug in processing the envelope test (when testing
1493 multiple envelope elements, the last element determinted the
1494 result)
1495
456682f5
PH
1496PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1497 Electronic Mail") by including:
1498
1499 Auto-submitted: auto-generated
1500
1501 in the messages that it generates (bounce messages and others, such as
1502 warnings). In the case of bounce messages for non-SMTP mesages, there was
1503 also a typo: it was using "Auto_submitted" (underscore instead of
1504 hyphen). Since every message generated by Exim is necessarily in response
1505 to another message, thes have all been changed to:
1506
1507 Auto-Submitted: auto-replied
1508
1509 in accordance with these statements in the RFC:
1510
1511 The auto-replied keyword:
1512
1513 - SHOULD be used on messages sent in direct response to another
1514 message by an automatic process,
1515
1516 - MUST NOT be used on manually-generated messages,
1517
1518 - MAY be used on Delivery Status Notifications (DSNs) and Message
1519 Disposition Notifications (MDNs),
1520
1521 - MUST NOT be used on messages generated by automatic or periodic
1522 processes, except for messages which are automatic responses to
1523 other messages.
1524
3e46c1aa
PH
1525PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1526 to the default Received: header definition.
456682f5 1527
49826d12
PH
1528PH/12 Added log selector acl_warn_skipped (default on).
1529
eba0c039
PH
1530PH/13 After a successful wildlsearch lookup, discard the values of numeric
1531 variables because (a) they are in the wrong storage pool and (b) even if
1532 they were copied, it wouldn't work properly because of the caching.
1533
a0d6ba8a
PH
1534PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1535 checking when decoding. Apparently there are clients that generate
1536 overlong encoded strings. Why am I not surprised?
1537
f0917727
PH
1538PH/15 If the first argument of "${if match_address" was not empty, but did not
1539 contain an "@" character, Exim crashed. Now it writes a panic log message
1540 and treats the condition as false.
1541
096fee00
PH
1542PH/16 In autoreply, treat an empty string for "once" the same as unset.
1543
024bd3c2
PH
1544PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1545 extension "envelope-auth". The code is finished and in agreement with
1546 other implementations, but there is no documentation so far and in fact,
1547 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1548 not changing the active code.
1549
1550 Print executed "if" and "elsif" statements when debugging is used. This
1551 helps a great deal to understand what a filter does.
1552
1553 Document more things not specified clearly in RFC3028. I had all this
1554 sorted out, when out of a sudden new issues came to my mind. Oops."
1555
df199fec
PH
1556PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1557 (Bugzilla #53).
1558
d27f1df3
PH
1559PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1560 canonical form (as documented). However, after a host name lookup from
1561 the IP address, check_host() was doing a simple string comparison with
1562 addresses acquired from the DNS when checking that the found name did
1563 have the original IP as one of its addresses. Since any found IPv6
1564 addresses are likely to be in abbreviated form, the comparison could
1565 fail. Luckily, there already exists a function for doing the comparison
1566 by converting both addresses to binary, so now that is used instead of
1567 the text comparison.
1568
96776534
PH
1569PH/20 There was another similar case to PH/19, when a complete host name was
1570 given in a host list; looking up its IP address could give an abbreviated
1571 form, whereas the current host's name might or might not be abbreviated.
1572 The same fix has been applied.
1573
5de37277 1574
9a799bc0
PH
1575Exim version 4.54
1576-----------------
1577
1578PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1579 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1580 It now does.
1581
99a4b039
PH
1582PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1583 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1584
1585PH/03 Typo: missing ".o" in src/pcre/Makefile.
1586
4b233853
PH
1587PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1588 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1589 Also, for "Auto-Submitted", treat anything other than "no" as
1590 non-personal, in accordance with RFC 3834. (Previously it treated
1591 anything starting "auto-" as non-personal.)
1592
8857ccfd
PH
1593TF/01 The control=submission/name=... option had a problem with syntax
1594 errors if the name included a slash character. The /name= option
1595 now slurps the rest of the string, so it can include any characters
1596 but it must come last in the list of options (after /sender_retain
1597 or /domain=).
1598
433a2980
PH
1599PH/05 Some modifications to the interface to the fake nameserver for the new
1600 testing suite.
1601
3e46c1aa 1602
9a799bc0 1603
e3a311ba
TK
1604Exim version 4.53
1605-----------------
1606
1607TK/01 Added the "success_on_redirect" address verification option. See
1608 NewStuff for rationale and an example.
1609
13b685f9
PH
1610PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1611
395ff96d
PH
1612PH/02 Patch to exigrep to allow it to work on syslog lines.
1613
5b68f6e4
PH
1614PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1615 fread() to skip over the body file's header line, because in Cygwin the
1616 header line is locked and is inaccessible.
1617
1ab52c69
PH
1618PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1619 co-exist for some time) to make it clear that it is the Exim ID that is
1620 referenced, not the Message-ID: header line.
1621
b07e6aa3
PH
1622PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1623 string_format() function, because snprintf() does not exist on all
1624 operating systems.
1625
254e032f
PH
1626PH/06 The use of forbid_filter_existstest now also locks out the use of the
1627 ${stat: expansion item.
1628
3af76a81
PH
1629PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1630 protocol synchronization error", to keep the pedants happy.
1631
2548ba04
PH
1632PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1633 well as for IRIX systems, when gcc is being used. See the host.c source
1634 file for comments.
1635
b6c6011d
PH
1636PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1637
cf39cf57
PH
1638PH/10 Named domain lists were not working if used in a queue_smtp_domains
1639 setting.
1640
f1513293
PH
1641PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1642 transport and to the smtp transport in LMTP mode.
1643
727549a4
PH
1644TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1645
af46795e
PH
1646PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1647 run a filter in a subprocess. This could lead to confusion in subsequent
1648 lookups in the parent process. There should also be a search_tidyup() at
1649 the end of the subprocess.
1650
d7b47fd0
PH
1651PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1652 only if the host matched helo_try_verify_hosts, which caused the
1653 verification to occur when the EHLO/HELO command was issued. The ACL just
1654 tested the remembered result. Now, if a previous verification attempt has
1655 not happened, "verify = helo" does it there and then.
1656
ee744174
JJ
1657JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1658
b582ab87
PH
1659TK/03 Fix log output including CR from clamd.
1660
41a13e0a
PH
1661PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1662 exist provoked a memory error which could cause a segfault.
1663
f625cc5a
PH
1664PH/15 Installed PCRE 6.2
1665
1666PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1667
21f7af35
PH
1668PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1669 of the problem. Specifically, suggested +O2 rather than +O1 for the
1670 HP-UX compiler.
1671
31480e42
PH
1672PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1673
2d280592
PH
1674PH/20 If a delivery was routed to a non-standard port by means of an SRV
1675 record, the port was not correctly logged when the outgoing_port log
1676 selector was set (it logged the transort's default port).
1677
7cd1141b
PH
1678PH/21 Added support for host-specific ports to manualroute, queryprogram,
1679 fallback_hosts, and "hosts" in the smtp transport.
1680
1681PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1682 host errors such as "Connection refused".
1683
750af86e
PH
1684PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1685 authentication with radiusclient 0.4.9:
1686
1687 - Error returned from rc_read_config was caught wrongly
1688 - Username/password not passed on to radius server due to wrong length.
1689
1690 The presumption is that some radiusclient API changes for 4.51/PH/17
1691 were not taken care of correctly. The code is still untested by me (my
1692 Linux distribution still has 0.3.2 of radiusclient), but it was
1693 contributed by a Radius user.
1694
1695PH/24 When doing a callout, the value of $domain wasn't set correctly when
1696 expanding the "port" option of the smtp transport.
1697
4304270b
TK
1698TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1699 while reading a MIME header. Thanks to Tom Hughes for a patch.
1700
750af86e
PH
1701PH/24 Include config.h inside local_scan.h so that configuration settings are
1702 available.
1703
64ffc24f
PH
1704PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1705 that in an ACL for RCPT (for example), you can examine exactly what was
1706 received.
1707
5dd9625b
PH
1708PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1709 commands, but it was not correctly comparing the address with the actual
1710 client host address. Thus, it would show the EHLO address in Received:
1711 header lines when this was not necessary.
1712
5591031b
PH
1713PH/27 Added the % operator to ${eval:}.
1714
ba18e66a
PH
1715PH/28 Exim tries to create and chdir to its spool directory when it starts;
1716 it should be ignoring failures (because with -C, for example, it has lost
1717 privilege). It wasn't ignoring creation failures other than "already
1718 exists".
1719
9cec981f
PH
1720PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1721 -bV or -d is used.
1722
aa2b5c79
PH
1723PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1724 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1725 too many continuations, the temporary file was not being removed, and the
1726 return code was incorrect.
aa2b5c79 1727
48a53b7f
PH
1728PH/31 Missing "BOOL" in function definition in filtertest.c.
1729
1c59d63b
PH
1730PH/32 Applied Sieve patches from the maintainer.
1731
671012da
TK
1732TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1733
1509d3a8
PH
1734PH/33 Added "verify = not_blind".
1735
1736PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1737 Local/Makefile (with some defaults set). These are used in built scripts
1738 such as exicyclog, but they have never been used in the exim_install
1739 script (though there are many overriding facilities there). I have
1740 arranged that the exim_install script now takes note of these two
1741 settings.
1742
1743PH/35 Installed configuration files for Dragonfly.
1744
2fe1a124
PH
1745PH/36 When a locally submitted message by a trusted user did not contain a
1746 From: header, and the sender address was obtained from -f or from an SMTP
1747 MAIL command, and the trusted user did not use -F to supply a sender
1748 name, $originator_name was incorrectly used when constructing a From:
1749 header. Furthermore, $originator_name was used for submission mode
1750 messages from external hosts without From: headers in a similar way,
1751 which is clearly wrong.
1752
8800895a
PH
1753PH/37 Added control=suppress_local_fixups.
1754
ccfdb010
PH
1755PH/38 When log_selector = +received_sender was set, and the addition of the
1756 sender made the log line's construction buffer exactly full, or one byte
1757 less than full, an overflow happened when the terminating "\n" was
1758 subsequently added.
1759
1130bfb0
PH
1760PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1761 when the result of a list match is failure because a DNS lookup failed.
1762
ebcb507f
PH
1763PH/40 RM_COMMAND is now used in the building process.
1764
c35e155c
PH
1765PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1766 the "build-* directories that it finds.
1767
95d1f782
PH
1768PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1769 address in a domain literal was a prefix of an interface address.
1770
fd6de02e
PH
1771PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1772 when verifying a sender address, unless rewrite_headers is false.
1773
58de37c5
PH
1774PH/44 Wrote a long comment about why errors_to addresses are verified as
1775 recipients, not senders.
1776
261cf466
TF
1777TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1778 the ratelimit ACL was added.
1779
3ee512ff
PH
1780PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1781
e08c430f
PH
1782PH/46 Added extra information about PostgreSQL errors to the error string.
1783
bef5a11f
PH
1784PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1785 avoiding the need to install special zones in a real server. This is
1786 backwards compatible; if it can't find the fake resolver, it drops back.
1787 Thus, both old and new test suites can be run.
1788
7546de58
TF
1789TF/02 Added util/ratelimit.pl
1790
e5d5a95f
TF
1791TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1792 clock is set back in time.
1793
2e88a017
TF
1794TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1795 Candler <B.Candler@pobox.com>.
1796
a5f65aa4
TF
1797TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1798 OK for addresses that are the result of redirections.
1799
e7726cbf
PH
1800PH/48 A number of further additions for the benefit of the new test suite,
1801 including a fake gethostbyname() that interfaces to the fake DNS resolver
1802 (see PH/47 above).
1803
a7fdad5b
TF
1804TF/06 The fix for widen_domains has also been applied to qualify_single and
1805 search_parents which are the other dnslookup options that can cause
1806 header rewrites.
1807
6af56900
PH
1808PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1809 type ("H").
1810
0925ede6
PH
1811PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1812
66afa403
TF
1813TF/07 Exim produced the error message "an SRV record indicated no SMTP
1814 service" if it encountered an MX record with an empty target hostname.
1815 The message is now "an MX or SRV record indicated no SMTP service".
1816
0154e85a
TF
1817TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1818 if the DNS of the sending site is misconfigured. This is quite a
1819 common situation. This change restores the behaviour of treating a
1820 helo verification defer as a failure.
1821
16f12c76
PH
1822PH/51 If self=fail was set on a router, the bounce message did not include the
1823 actual error message.
1824
bbe902f0 1825
e5a9dba6
PH
1826Exim version 4.52
1827-----------------
1828
1829TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1830
22c3b60b
PH
1831PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1832 command itself ended in error, the underlying message about the transport
1833 filter timeout was being overwritten with the pipe command error. Now the
1834 underlying error message should be appended to the second error message.
1835
06a9b4b5
PH
1836TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1837
c1ac6996
PH
1838PH/02 Reduce the amount of output that "make" produces by default. Full output
1839 can still be requested.
1840
9c7a242c
PH
1841PH/03 The warning log line about a condition test deferring for a "warn" verb
1842 was being output only once per connection, rather than after each
1843 occurrence (because it was using the same function as for successful
1844 "warn" verbs). This seems wrong, so I have changed it.
1845
87ba3f5f
PH
1846TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1847 it should not have, which might have caused a crash in the right
1848 circumstances, but probably never did.
1849
1850PH/04 Installed a modified version of Tony Finch's patch to make submission
1851 mode fix the return path as well as the Sender: header line, and to
1852 add a /name= option so that you can make the user's friendly name appear
1853 in the header line.
1854
29aba418
TF
1855TF/03 Added the control = fakedefer ACL modifier.
1856
fe0dab11
TF
1857TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1858 Mark Lowes for thorough testing.
870f6ba8 1859
11d337a4
TK
1860TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1861
1862TK/03 Merged latest SRS patch from Miles Wilton.
1863
415c8f3b
PH
1864PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1865 with the definition in sysexits.h (which is #included earlier).
1866 Fortunately, Exim does not actually use EX_OK. The code used to try to
1867 preserve the sysexits.h value, by assumimg that macro definitions were
1868 scanned for macro replacements. I have been disabused of this notion,
1869 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1870
958541e9
PH
1871PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1872 in the smtp transport. When a block could not be written in a single
1873 write() function, the timeout was being re-applied to each part-write.
1874 This seems wrong - if the receiver was accepting one byte at a time it
1875 would take for ever. The timeout is now adjusted when this happens. It
1876 doesn't have to be particularly precise.
1877
c206415f
TK
1878TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1879 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1880
2a4be8f9
PH
1881PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1882 without a domain if the check to <postmaster@domain> fails.
1883
1cba11c5
SC
1884SC/01 Eximstats: added -xls and the ability to specify output files
1885 (patch written by Frank Heydlauf).
1886
1887SC/02 Eximstats: use FileHandles for outputing results.
1888
1889SC/03 Eximstats: allow any combination of xls, txt, and html output.
1890
1891SC/04 Eximstats: fixed display of large numbers with -nvr option
1892
1893SC/05 Eximstats: fixed merging of reports with empty tables.
1894
1895SC/06 Eximstats: added the -include_original_destination flag
1896
1897SC/07 Eximstats: removed tabs and trailing whitespace.
1898
1005d00e
TK
1899TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1900
1901TK/06 MBOX spool code: Add real "From " MBOX separator line
1902 so the .eml file is really in mbox format (even though
1903 most programs do not really care). Patch from Alex Miller.
1904
1905TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1906 The latter is generated from $received_to and is only set if the
1907 message has one envelope recipient. SA can use these headers,
1908 obviously out-of-the-box. Patch from Alex Miller.
1909
9b4768fa
PH
1910PH/08 The ${def test on a variable was returning false if the variable's
1911 value was "0", contrary to what the specification has always said!
1912 The result should be true unless the variable is empty.
1913
1914PH/09 The syntax error of a character other than { following "${if
1915 def:variable_name" (after optional whitespace) was not being diagnosed.
1916 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1917 accidental colon was present, for example, could give incorrect results.
1918
0d7eb84a
PH
1919PH/10 Tidied the code in a number of places where the st_size field of a stat()
1920 result is used (not including appendfile, where other changes are about
1921 to be made).
1922
1923PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1924 This involved changing a lot of size variables from int to off_t. It
1925 should work with maildirs and everything.
1926
40727bee
TK
1927TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1928 spamd dying while we are connected to it.
1929
554d2369
TF
1930TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1931 <jgh@wizmail.org>
1932
1f922db1
PH
1933PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1934 function for BDB 4.3.
1935
ef213c3b
PH
1936PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1937
8ac170f3
PH
1938PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1939 the sources for PCRE have been re-arranged and more files are now
1940 involved.
1941
b1c749bb
PH
1942PH/15 The code I had for printing potentially long long variables in PH/11
1943 above was not the best (it lost precision). The length of off_t variables
1944 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1945 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1946 to be "long long int" or "long int". This is needed for the internal
1947 formatting function string_vformat().
b1c749bb 1948
4aac9b49
PH
1949PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1950 the configuration file to be ":syslog", then the script "guesses" where
1951 the logs files are, rather than using the compiled in default. In our
1952 case the guess is not the same as the compiled default, so the script
1953 suddenly stopped working when I started to use syslog. The patch checks
1954 to see if log_file_path is "". If so, it attempts to read it from exim
1955 with no configuration file to get the compiled in version, before it
1956 falls back to the previous guessing code."
1957
294520c8
TK
1958TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1959 implementing BATV in an Exim configuration. See NewStuff for the gory
1960 details.
1961
5bd022fe
PH
1962PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1963 Makefile that are specific to HP-UX.
1964
90e9ce59
PH
1965PH/18 If the "use_postmaster" option was set for a recipient callout together
1966 with the "random" option, the postmaster address was used as the MAIL
1967 FROM address for the random test, but not for the subsequent recipient
1968 test. It is now used for both.
1969
5ea81592
PH
1970PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1971 patch removes a few documentation additions to RFC 3028, because the
1972 latest draft now contains them. It adds the new en;ascii-case comparator
1973 and a new error check for 8bit text in MIME parts. Comparator and
1974 require names are now matched exactly. I enabled the subaddress
1975 extension, but it is not well tested yet (read: it works for me)."
1976
c6c2dc1d
PH
1977PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1978 rework some of the code of TK/09 above to avoid the hardwired use of
1979 "%lld" and "long long". Replaced the call to snprintf() with a call to
1980 string_vformat().
1981
fffffe4c
PH
1982PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1983 records point to non-existent hosts", "retry timeout exceeded", and
1984 "retry time not reached for any host after a long failure period".
ca02eafb 1985
9a26b6b2
PH
1986PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1987 experimental DomainKeys support:
1988
1989 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1990 (2) On an error such as an illegally used "control", the wrong name for
1991 the control was given.
1992
1993 These problems did NOT occur unless DomainKeys support was compiled.
1994
4aee0225
PH
1995PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1996
32d668a5
PH
1997PH/24 Added ${if match_ip condition.
1998
8187c3f3
PH
1999PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2000 databases so that it will be absolutely obvious if a crash occurs in the
2001 DB library. This is a regular occurrence (often caused by mis-matched
2002 db.h files).
2003
ff790e47 2004PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2005 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2006 picked up on a user's system that detects such things. There doesn't seem
2007 to be a gcc warning option for this - only an attribute that has to be
2008 put on the function's prototype. It seems that in Fedora Core 4 they have
2009 set this on a number of new functions. No doubt there will be more in due
2010 course.
ff790e47 2011
5417f6d1
PH
2012PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2013 specify a transport. However, if an address that was verified by such a
2014 router was the subject of a callout, Exim crashed because it tried to
2015 read the rcpt_include_affixes from the non-existent transport. Now it
2016 just assumes that the setting of that option is false. This bug was
2017 introduced by 4.51/PH/31.
2018
59cf8544
PH
2019PH/28 Changed -d+all to exclude +memory, because that information is very
2020 rarely of interest, but it makes the output a lot bigger. People tend to
2021 do -d+all out of habit.
2022
e7ad8a65
PH
2023PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2024 code in os-type was giving problems when libc.so lives in lib64, like on
2025 x86_64 Fedora Core.
2026
ade42478
PH
2027PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2028 aren't the modern standard, and it seems that some systems' include files
2029 don't always have them. Exim was already checking for some of the newer
2030 ones like T_AAAA, and defining it itself. I've added checks for all the
2031 record types that Exim uses.
2032
182ad5cf
PH
2033PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2034 not automatically generating a new one, as it is supposed to. This
2035 prevented TLS from working. If the file did exist, but contained invalid
2036 data, a new version was generated, as expected. It was only the case of a
2037 non-existent file that was broken.
2038
b0d9fc80
TK
2039TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2040 with a change in libdomainkeys > 0.64.
2041
2042TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2043 from DNS. If the selector record carries the flag, it now has
2044 precedence over the domain-wide flag.
2045
2046TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2047
47c7a64a
PH
2048PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2049 the use of a port name that isn't defined in /etc/services) occurred, the
2050 message was deferred as in a normal delivery, and thus remained on the
2051 spool, instead of being failed because of the mua_wrapper setting. This
2052 is now fixed, and I tidied up some of the mua_wrapper messages at the
2053 same time.
2054
a388bce4
SC
2055SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2056 the messages in a hash of arrays rather than using individual hashes.
2057 This is a bit cleaner and results in dramatic memory savings, albeit
2058 at a slight CPU cost.
2059
2060SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2061 as requested by Marc Sherman.
2062
2063SC/10 Eximstats: added histograms for user specified patterns as requested
2064 by Marc Sherman.
2065
0793e4ed
SC
2066SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2067
c58b88df
PH
2068PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2069 fopen() in the content-scanning modules that did not already have it.
2070
e7ad8a65 2071
7982096b
PH
2072Exim version 4.51
2073-----------------
2074
1a46a8c5
PH
2075TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2076 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2077
2f079f46 2078TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2079
2080TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2081
2082PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2083 to test Sieve filters that use "vacation".
2084
2085PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2086 that changes the way the GnuTLS parameters are stored in the cache file.
2087 The new format can be generated externally. For backward compatibility,
2088 if the data in the cache doesn't make sense, Exim assumes it has read an
2089 old-format file, and it generates new data and writes a new file. This
2090 means that you can't go back to an older release without removing the
2091 file.
2092
2093PH/03 A redirect router that has both "unseen" and "one_time" set does not
2094 work if there are any delivery delays because "one_time" forces the
2095 parent to be marked "delivered", so its unseen clone is never tried
2096 again. For this reason, Exim now forbids the simultaneous setting of
2097 these two options.
2098
2099PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2100 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2101 entry if you want to know the details. The fix, however, neglected to
2102 consider the case when local delivery batching is involved. The test for
2103 "previously delivered" was not happening when checking to see if an
2104 address could be batched with a previous (undelivered) one; under
2105 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2106 address.
1a46a8c5
PH
2107
2108PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2109 in its include files, and this causes problems building Exim.
2110
2111PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2112 header_syntax) but Exim was just ignoring anything given after a slash.
2113 In particular, this caused confusion with an attempt to use "verify =
2114 reverse_host_lookup/defer_ok". An error is now given when options are
2115 supplied for verify items that do not have them. (Maybe reverse_host_
2116 lookup should have a defer_ok option, but that's a different point.)
2117
2118PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2119 defined by RFC 821) to 2048, because there were problems with some AUTH
2120 commands, and RFC 1869 says the size should be increased for extended
2121 SMTP commands that take arguments.
2122
2123PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2124 Finch).
2125
2126PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2127 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2128
49c2d5ea
PH
2129PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2130 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2131 whatever). Otherwise the password may appear in the log. Following change
2132 PH/42 below, there is no longer a chance of it appearing in a bounce
2133 message.
49c2d5ea 2134
bf759a8b
PH
2135PH/11 Installed exipick version 20050225.0 from John Jetmore.
2136
83364d30
PH
2137PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2138 of its addresses was ever tried. (Bugzilla bug #2.)
2139
7999bbd7
PH
2140PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2141 the result incorrectly in the debug output. (It correctly added a newline
2142 to what was transported.)
2143
7dbf77c9
PH
2144TF/01 Added $received_time.
2145
74e0617f
PH
2146PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2147 commented out examples of how to interface to a virus scanner and to
2148 SpamAssassin. Also added commented examples of av_scanner and
2149 spamd_address settings.
2150
2f079f46
PH
2151PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2152 and controls are allowed in which ACLs. There were a couple of minor
2153 errors. Some of the entries in the conditions table (which is a table of
2154 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2155 negation of where the condition IS allowed.
2156
8c841523
PH
2157PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2158
7766a4f0
PH
2159PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2160 header file does not have a version number, so I've had to invent a new
2161 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2162 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2163 radiusclient), but it was contributed by a Radius user.
2164
8b417f2c
PH
2165PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2166 files or directories, for OpenSSL.
2167
901f42cb
PH
2168PH/19 When an Exim process that is running as root has to create an Exim log
2169 file, it does so in a subprocess that runs as exim:exim so as to get the
2170 ownership right at creation (otherwise, other Exim processes might see
2171 the file with the wrong ownership). There was no test for failure of this
2172 fork() call, which would lead to the process getting stuck as it waited
2173 for a non-existent subprocess. Forks do occasionally fail when resources
2174 run out. I reviewed all the other calls to fork(); they all seem to check
2175 for failure.
2176
f9b9210e
PH
2177PH/20 When checking for unexpected SMTP input at connect time (before writing
2178 the banner), Exim was not dealing correctly with a non-positive return
2179 from the read() function. If the client had disconnected by this time,
2180 the result was a log entry for a synchronization error with an empty
2181 string after "input=" when read() returned zero. If read() returned -1
2182 (an event I could not check), uninitialized data bytes were printed.
2183 There were reports of junk text (parts of files, etc) appearing after
2184 "input=".
2185
54cdb463
PH
2186PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2187
cf00dad6
PH
2188PH/22 Added support for macro redefinition, and (re)definition in between
2189 driver and ACL definitions.
2190
acb1b346
PH
2191PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2192 forgetting to use the resulting value; it was using the unexpanded value.
2193
c5ddb310
PH
2194PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2195 hadn't been configured. The fix is from Juergen Kreileder, who
2196 understands it better than I do:
2197
2198 "Here's what I see happening with three configured cyrus_sasl
2199 authenticators configured (plain, login, cram-md5):
2200
2201 On startup auth_cyrus_sasl_init() gets called for each of these.
2202 This means three calls to sasl_listmech() without a specified mech_list.
2203 => SASL tests which mechs of all available mechs actually work
2204 => three warnings about OTP not working
2205 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2206
2207 With the patch, sasl_listmech() also gets called three times. But now
2208 SASL's mech_list option is set to the server_mech specified in the the
2209 authenticator. Or in other words, the answer from sasl_listmech()
2210 gets limited to just the mech you're testing for (which is different
2211 for each call.)
2212 => the return list contains just 'plain' or 'login', 'cram-md5' or
2213 nothing depending on the value of ob->server_mech.
2214
2215 I've just tested the patch: Authentication still works fine,
2216 unavailable mechs specified in the exim configuration are still
2217 caught, and the auth.log warnings about OTP are gone."
2218
31619da6
PH
2219PH/25 When debugging is enabled, the contents of the command line are added
2220 to the debugging output, even when log_selector=+arguments is not
2221 specified.
2222
bebaf0fc
PH
2223PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2224 answer is "GNU", and only if the return is "GNU/something" is the answer
2225 "Linux".
2226
475fe28a
PH
2227PH/27 $acl_verify_message is now set immediately after the failure of a
2228 verification in an ACL, and so is available in subsequent modifiers. In
2229 particular, the message can be preserved by coding like this:
2230
2231 warn !verify = sender
2232 set acl_m0 = $acl_verify_message
2233
2234 Previously, $acl_verify_message was set only while expanding "message"
2235 and "log_message" when a very denied access.
2236
7e8bec7a
PH
2237PH/28 Modified OS/os.c-Linux with
2238
2239 -#ifndef OS_LOAD_AVERAGE
2240 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2241
2242 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2243 nomenclature these days.)
2244
e4a89c47
PH
2245PH/29 Installed patch from the Sieve maintainer that adds the options
2246 sieve_useraddress and sieve_subaddress to the redirect router.
2247
5ca2a9a1
PH
2248PH/30 In these circumstances:
2249 . Two addresses routed to the same list of hosts;
2250 . First host does not offer TLS;
2251 . First host accepts first address;
2252 . First host gives temporary error to second address;
2253 . Second host offers TLS and a TLS session is established;
2254 . Second host accepts second address.
2255 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2256 and peerdn, if requested) that were in fact used only for the second
2257 address.
7e8bec7a 2258
c688b954
PH
2259PH/31 When doing a callout as part of verifying an address, Exim was not paying
2260 attention to any local part prefix or suffix that was matched by the
2261 router that accepted the address. It now behaves in the same way as it
2262 does for delivery: the affixes are removed from the local part unless
2263 rcpt_include_affixes is set on the transport.
2264
fed77020
PH
2265PH/32 Add the sender address, as F=<...>, to the log line when logging a
2266 timeout during the DATA phase of an incoming message.
2267
7fe1560f
PH
2268PH/33 Sieve envelope tests were broken for match types other than :is. I have
2269 applied a patch sanctioned by the Sieve maintainer.
c688b954 2270
ebb6e6d5
PH
2271PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2272 the uid or gid is negative. A case of a negative gid caused this to be
2273 noticed. The fix allows for either to be negative.
2274
9c4e8f60
PH
2275PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2276 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2277 overlooked.
2278
2279PH/36 The change PH/12 above was broken. Fixed it.
2280
d7174846
PH
2281PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2282 the grounds that routing the same address twice would always produce the
2283 same answer. This might have been true once, but it is certainly no
2284 longer true now. Routing a child address may depend on the previous
2285 routing that produced that child. Some complicated redirection strategies
2286 went wrong when messages had multiple recipients, and made Exim's
2287 behaviour dependent on the order in which the addresses were given.
2288
2289 I have moved the duplicate checking until after the routing is complete.
2290 Exim scans the addresses that are assigned to local and remote
2291 transports, and removes any duplicates. This means that more work will be
2292 done, as duplicates will always all be routed, but duplicates are
2293 presumably rare, so I don't expect this is of any significance.
2294
2295 For deliveries to pipes, files, and autoreplies, the duplicate checking
2296 still happens during the routing process, since they are not going to be
2297 routed further.
2298
cfe75fc3
PH
2299PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2300 It corrects a timeout issue with spamd. This is Ian's comment: "The
2301 background is that sometimes spamd either never reads data from a
2302 connection it has accepted, or it never writes response data. The exiscan
2303 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2304 blindly assumes that writes won't block so it may never time out."
2305
be22d70e
PH
2306PH/39 Allow G after quota size as well as K and M.
2307
0612b098
PH
2308PH/40 The value set for $authenticated_id in an authenticator may not contain
2309 binary zeroes or newlines because the value is written to log lines and
2310 to spool files. There was no check on this. Now the value is run through
2311 the string_printing() function so that such characters are converted to
2312 printable escape sequences.
2313
2e0c1448
PH
2314PH/41 $message_linecount is a new variable that contains the total number of
2315 lines in the message. Compare $body_linecount, which is the count for the
2316 body only.
2317
447d236c
PH
2318PH/42 Exim no longer gives details of delivery errors for specific addresses in
2319 bounce and delay warning messages, except in certain special cases, which
2320 are as follows:
2321
2322 (a) An SMTP error message from a remote host;
2323 (b) A message specified in a :fail: redirection;
2324 (c) A message specified in a "fail" command in a system filter;
2325 (d) A message specified in a FAIL return from the queryprogram router;
2326 (e) A message specified by the cannot_route_message router option.
2327
2328 In these cases only, Exim does include the error details in bounce and
2329 warning messages. There are also a few cases where bland messages such
2330 as "unrouteable address" or "local delivery error" are given.
2331
d20976dc
PH
2332PH/43 $value is now also set for the "else" part of a ${run expansion.
2333
f656d135
PH
2334PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2335 being worked on, but at least Exim now implements the latest version to
2336 play with."
2337
2e2a30b4
PH
2338PH/45 In a pipe transport, although a timeout while waiting for the pipe
2339 process to complete was treated as a delivery failure, a timeout while
2340 writing the message to the pipe was logged, but erroneously treated as a
2341 successful delivery. Such timeouts include transport filter timeouts. For
2342 consistency with the overall process timeout, these timeouts are now
2343 treated as errors, giving rise to delivery failures by default. However,
2344 there is now a new Boolean option for the pipe transport called
2345 timeout_defer, which, if set TRUE, converts the failures into defers for
2346 both kinds of timeout. A transport filter timeout is now identified in
2347 the log output.
2348
9176e9f0
PH
2349PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2350 systems where "make" and "gmake" are different, calling "gmake" at top
2351 level broke things. I've arranged for the value of $(MAKE) to be passed
2352 from the Makefile to this script so that it can call the same version of
2353 "make".
2354
7982096b 2355
bbe902f0
PH
2356A note about Exim versions 4.44 and 4.50
2357----------------------------------------
2358
2359Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2360changes of various kinds. As a consequence, a big documentation update was
2361needed. This delayed the release for rather longer than seemed good, especially
2362in the light of a couple of (minor) security issues. Therefore, the changes
2363that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2364release. So 4.44 and 4.50 are in effect two different branches that both start
2365from 4.43.
2366
2367I have left the 4.50 change log unchanged; it contains all the changes since
23684.43. The change log for 4.44 is below; many of its items are identical to
2369those for 4.50. This seems to be the most sensible way to preserve the
2370historical information.
2371
2372
f7b63901 2373Exim version 4.50
495ae4b0
PH
2374-----------------
2375
5fe762f6
PH
2376 1. Minor wording change to the doc/README.SIEVE file.
2377
139059f6 2378 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2379 computation of the current number of files was incorrect.
495ae4b0 2380
7086e875
PH
2381 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2382 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2383 place.
2384
35af9f61
PH
2385 4. Give more explanation in the error message when the command for a transport
2386 filter fails to execute.
2387
b668c215
PH
2388 5. There are several places where Exim runs a non-Exim command in a
2389 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2390 was being done only for the command run by the queryprogram router. It is
2391 now done for all such subprocesses. The other cases are: ${run, transport
2392 filters, and the commands run by the lmtp and pipe transports.
2393
a494b1e1
PH
2394 6. Added CONFIGURE_GROUP build-time option.
2395
2396 7. Some older OS have a limit of 256 on the maximum number of file
2397 descriptors. Exim was using setrlimit() to set 1000 as a large value
2398 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2399 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2400
c5fcb476
PH
2401 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2402 was an oversight, and furthermore, ever since the addition of extra
2403 controls (e.g. 4.43/32), the checks on when to allow different forms of
2404 "control" were broken. There should now be diagnostics for all cases when a
2405 control that does not make sense is encountered.
2406
69358f02
PH
2407 9. Added the /retain_sender option to "control=submission".
2408
5be20824
PH
240910. $recipients is now available in the predata ACL (oversight).
2410
eb2c0248
PH
241111. Tidy the search cache before the fork to do a delivery from a message
2412 received from the command line. Otherwise the child will trigger a lookup
2413 failure and thereby defer the delivery if it tries to use (for example) a
2414 cached ldap connection that the parent has called unbind on.
2415
2a3eea10
PH
241612. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2417 of $address_data from the recipient verification was clobbered by the
2418 sender verification.
2419
242013. The value of address_data from a sender verification is now available in
2421 $sender_address_data in subsequent conditions in the ACL statement.
2422
23c7ff99
PH
242314. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2424
4deaf07d
PH
242515. Added a new option "connect=<time>" to callout options, to set a different
2426 connection timeout.
2427
926e1192
PH
242816. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2429 was its contents. (It was OK if the option was not defined at all.)
2430
650edc6f
PH
243117. A "Completed" log line is now written for messages that are removed from
2432 the spool by the -Mrm option.
2433
2c7db3f5
PH
243418. New variables $sender_verify_failure and $recipient_verify_failure contain
2435 information about exactly what failed.
2436
3d235903
PH
243719. Added -dd to debug only the daemon process.
2438
7c7ad977
PH
243920. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2440 handles timeouts, both on the server side and network timeouts. Renamed the
2441 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2442
981756db
PH
244321. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2444 It is now set to "smtps".
2445
d4eb88df
PH
244622. $host_address is now set to the target address during the checking of
2447 ignore_target_hosts.
2448
244923. When checking ignore_target_hosts for an ipliteral router, no host name was
2450 being passed; this would have caused $sender_host_name to have been used if
2451 matching the list had actually called for a host name (not very likely,
2452 since this list is usually IP addresses). A host name is now passed as
2453 "[x.x.x.x]".
2454
7d468ab8
PH
245524. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2456 code that specifies a non-restarting handler (typically sigaction() in
2457 modern systems) in an attempt to fix a rare and obscure crash bug.
2458
245925. Narrowed the window for a race in the daemon that could cause it to ignore
2460 SIGCHLD signals. This is not a major problem, because they are used only to
2461 wake it up if nothing else does.
2462
62c0818f
PH
246326. A malformed maildirsize file could cause Exim to calculate negative values
2464 for the mailbox size or file count. Odd effects could occur as a result.
2465 The maildirsize information is now recalculated if the size or filecount
2466 end up negative.
2467
26034054
PH
246827. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2469 support for a long time. Removed HAVE_SYS_VFS_H.
2470
af66f652
PH
247128. Installed the latest version of exipick from John Jetmore.
2472
90af77f4
PH
247329. In an address list, if the pattern was not a regular expression, an empty
2474 subject address (from a bounce message) matched only if the pattern was an
2475 empty string. Non-empty patterns were not even tested. This was the wrong
2476 because it is perfectly reasonable to use an empty address as part of a
2477 database query. An empty address is now tested by patterns that are
2478 lookups. However, all the other forms of pattern expect the subject to
2479 contain a local part and a domain, and therefore, for them, an empty
2480 address still always fails if the pattern is not itself empty.
2481
d8ef3577
PH
248230. Exim went into a mad DNS loop when attempting to do a callout where the
2483 host was specified on an smtp transport, and looking it up yielded more
2484 than one IP address.
2485
5cb8cbc6
PH
248631. Re-factored the code for checking spool and log partition space into a
2487 function that finds that data and another that does the check. The former
2488 is then used to implement four new variables: $spool_space, $log_space,
2489 $spool_inodes, and $log_inodes.
2490
14702f5b
PH
249132. The RFC2047 encoding function was originally intended for short strings
2492 such as real names; it was not keeping to the 75-character limit for
2493 encoded words that the RFC imposes. It now respects the limit, and
2494 generates multiple encoded words if necessary. To be on the safe side, I
2495 have increased the buffer size for the ${rfc2047: expansion operator from
2496 1024 to 2048 bytes.
2497
063b1e99
PH
249833. It is now permitted to omit both strings after an "if" condition; if the
2499 condition is true, the result is "true". As before, when the second string
2500 is omitted, a false condition yields an empty string. This makes it less
2501 cumbersome to write custom ACL and router conditions.
2502
652e1b65
PH
250334. Failure to deliver a bounce message always caused it to be frozen, even if
2504 there was an errors_to setting on the router. The errors_to setting is now
2505 respected.
2506
6f0c9a4f
PH
250735. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2508 canonical form (fully expanded) before being placed in
2509 $sender_host_address.
2510
33397d19
PH
251136. The table in the code that translates DNS record types into text (T_A to
2512 "A" for instance) was missing entries for NS and CNAME. It is just possible
2513 that this could have caused confusion if both these types were looked up
2514 for the same domain, because the text type is used as part of Exim's
2515 per-process caching. But the chance of anyone hitting this buglet seems
2516 very small.
2517
7bb56e1f
PH
251837. The dnsdb lookup has been extended in a number of ways.
2519
2520 (1) There is a new type, "zns", which walks up the domain tree until it
2521 finds some nameserver records. It should be used with care.
2522
ea3bc19b
PH
2523 (2) There is a new type, "mxh", which is like "mx" except that it returns
2524 just the host names, not the priorities.
2525
2526 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2527 looked up. The behaviour when one of the lookups defers can be
2528 controlled by a keyword.
7bb56e1f 2529
ea3bc19b 2530 (4) It is now possible to specify the separator character for use when
7bb56e1f 2531 multiple records are returned.
33397d19 2532
0bcb2a0e
PH
253338. The dnslists ACL condition has been extended: it is now possible to supply
2534 a list of IP addresses and/or domains to be looked up in a particular DNS
2535 domain.
2536
2ac0e484
PH
253739. Added log_selector=+queue_time_overall.
2538
4e1fde53
PH
253940. When running the queue in the test harness, wait just a tad after forking a
2540 delivery process, to get repeatability of debugging output.
2541
de365ded
PH
254241. Include certificate and key file names in error message when GnuTLS fails
2543 to set them up, because the GnuTLS error message doesn't include the name
2544 of the failing file when there is a problem reading it.
2545
f05da2e8
PH
254642. Allow both -bf and -bF in the same test run.
2547
d6453af2
PH
254843. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2549
f7b63901
PH
255044. The "Exiscan patch" is now merged into the mainline Exim source.
2551
255245. Sometimes the final signoff response after QUIT could fail to get
2553 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2554 < 0 before doing a fflush(). This bug looks as though it goes back to the
2555 introduction of TLS in release 3.20, but "sometimes" must have been rare
2556 because the tests only now provoked it.
2557
a444213a
PH
255846. Reset the locale to "C" after calling embedded Perl, in case it was changed
2559 (this can affect the format of dates).
2560
0ec020ea
PH
256147. exim_tidydb, when checking for the continued existence of a message for
2562 which it has found a message-specific retry record, was not finding
2563 messages that were in split spool directories. Consequently, it was
2564 deleting retry records that should have stayed in existence.
2565
b1206957
PH
256648. Steve fixed some bugs in eximstats.
2567
256849. The SPA authentication driver was not abandoning authentication and moving
2569 on to the next authenticator when an expansion was forced to fail,
2570 contradicting the general specification for all authenticators. Instead it
2571 was generating a temporary error. It now behaves as specified.
2572
26dd5a95
PH
257350. The default ordering of permitted cipher suites for GnuTLS was pessimal
2574 (the order specifies the preference for clients). The order is now AES256,
2575 AES128, 3DES, ARCFOUR128.
2576
343b2385
PH
257751. Small patch to Sieve code - explicitly set From: when generating an
2578 autoreply.
2579
1c5466b9
PH
258052. Exim crashed if a remote delivery caused a very long error message to be
2581 recorded - for instance if somebody sent an entire SpamAssassin report back
2582 as a large number of 550 error lines. This bug was coincidentally fixed by
2583 increasing the size of one of Exim's internal buffers (big_buffer) that
2584 happened as part of the Exiscan merge. However, to be on the safe side, I
2585 have made the code more robust (and fixed the comments that describe what
2586 is going on).
2587
55ee9ee3
PH
258853. Now that there can be additional text after "Completed" in log lines (if
2589 the queue_time_overall log selector is set), a one-byte patch to exigrep
2590 was needed to allow it to recognize "Completed" as not the last thing in
2591 the line.
2592
d38f8232
PH
259354. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2594 patch that reportedly fixes this has been added. I am not expert enough to
2595 create a test for it. This is what the patch creator wrote:
2596
2597 "I found a little strange behaviour of ldap code when working with
2598 Windows 2003 AD Domain, where users was placed in more than one
2599 Organization Units. When I tried to give exim partial DN, the exit code
2600 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2601 But simultaneously result of request was absolutely normal ldap result,
2602 so I produce this patch..."
2603
3295e65b
PH
2604 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2605 REFERENCE, so I have modified the code to exclude the patch when that macro
2606 is not defined.
2607
7102e136
PH
260855. Some experimental protocols are using DNS PTR records for new purposes. The
2609 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2610 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2611 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2612 CAN-2005-0021
7102e136 2613
3ca0ba97
PH
261456. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2615
c2bcbe20
PH
261657. Double the size of the debug message buffer (to 2048) so that more of very
2617 long debug lines gets shown.
2618
18ce445d
PH
261958. The exicyclog utility now does better if the number of log files to keep
2620 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2621
1f5b4c3d
PH
262259. Two changes related to the smtp_active_hostname option:
2623
2624 (1) $smtp_active_hostname is now available as a variable.
2625 (2) The default for smtp_banner uses $smtp_active_hostname instead
2626 of $primary_hostname.
2627
b975ba52
PH
262860. The host_aton() function is supposed to be passed a string that is known
2629 to be a valid IP address. However, in the case of IPv6 addresses, it was
2630 not checking this. This is a hostage to fortune. Exim now panics and dies
2631 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2632 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2633 components; fortuitously, this particular loophole had already been fixed
2634 by change 4.50/55 above.
2635
2636 If there are any other similar loopholes, the new check in host_aton()
2637 itself should stop them being exploited. The report I received stated that
2638 data on the command line could provoke the exploit when Exim was running as
2639 exim, but did not say which command line option was involved. All I could
2640 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2641 running as the user.
ea3a6f44 2642 CAN-2005-0021
85b87bc2
PH
2643
264461. There was a buffer overflow vulnerability in the SPA authentication code
2645 (which came originally from the Samba project). I have added a test to the
2646 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2647 CAN-2005-0022
b975ba52 2648
17ffcae7
PH
264962. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2650 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2651
d95f9fdb
PH
265263. The daemon start-up calls getloadavg() while still root for those OS that
2653 need the first call to be done as root, but it missed one case: when
2654 deliver_queue_load_max is set with deliver_drop_privilege. This is
2655 necessary for the benefit of the queue runner, because there is no re-exec
2656 when deliver_drop_privilege is set.
2657
86b8287f
PH
265864. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2659 This has been fixed.
2660
60dc5e56
PH
266165. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2662 was in use, was not putting the data itself into the right store pool;
2663 consequently, it could be overwritten for a subsequent message in the same
2664 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2665 the caching.)
2666
533244af
PH
266766. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2668
a5a28604
PH
266967. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2670 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2671 the function were treating the return as a boolean value, which happened to
2672 work because 0=false and not-0=true, but is not correct code.
2673
7e634d24
PH
267468. The host_aton() function was not handling scoped IPv6 addresses (those
2675 with, for example, "%eth0" on the end) correctly.
2676
3e11c26b
PH
267769. Fixed some compiler warnings in acl.c for the bitmaps specified with
2678 negated items (that is, ~something) in unsigned ints. Some compilers
2679 apparently mutter when there is no cast.
2680
6729cf78
PH
268170. If an address verification called from an ACL failed, and did not produce a
2682 user-specific message (i.e. there was only a "system" message), nothing was
2683 put in $acl_verify_message. In this situation, it now puts the system
2684 message there.
2685
00f00ca5
PH
268671. Change 4.23/11 added synchronization checking at the start of an SMTP
2687 session; change 4.31/43 added the unwanted input to the log line - except
2688 that it did not do this in the start of session case. It now does.
2689
c9bdd01c
PH
269072. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2691 This is wrong and can cause the other end to generate a synchronization
2692 error if it is another Exim or anything else that does the synchronization
2693 check. A QUIT command is no longer sent after a timeout.
2694
d43194df
PH
269573. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2696 during host lookups.
2697
fe5b5d0b
PH
269874. The defer_ok option of callout verification was not working if it was used
2699 when verifying addresses in header lines, that is, for this case:
2700
2701 verify = header_sender/callout=defer_ok
2702
76a2d7ba
PH
270375. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2704 those file descriptors could be used for SMTP connections. If anything
2705 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2706 could be sent to the SMTP client, causing chaos. The daemon now opens
2707 stdin, stdout, and stderr to /dev/null when it puts itself into the
2708 background.
2709
271076. Arrange for output from Perl's "warn" command to be written to Exim's main
2711 log by default. The user can override this with suitable Perl magic.
2712
04f7d5b9
PH
271377. The use of log_message on a "discard" ACL verb, which is supposed to add to
2714 the log message when discard triggers, was not working for the DATA ACL or
2715 for the non-SMTP ACL.
2716
bc60667e
PH
271778. Error message wording change in sieve.c.
2718
bb6e88ff
PH
271979. If smtp_accept_max_per_host was set, the number of connections could be
2720 restricted to fewer than expected, because the daemon was trying to set up
2721 a new connection before checking whether the processes handling previous
2722 connections had finished. The check for completed processes is now done
2723 earlier. On busy systems, this bug wouldn't be noticed because something
2724 else would have woken the daemon, and it would have reaped the completed
2725 process earlier.
2726
1e70f85b
PH
272780. If a message was submitted locally by a user whose login name contained one
2728 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2729 It caused a spool format error. I have fixed the spool reading code. A
2730 related problem was that the "from" clause in the Received: line became
2731 illegal because of the space(s). It is now covered by ${quote_local_part.
2732
273381. Included the latest eximstats from Steve (adds average sizes to HTML Top
2734 tables).
2735
4e01f9d6
PH
273682. Updated OS/Makefile-AIX as per message from Mike Meredith.
2737
1ee1cef2
PH
273883. Patch from Sieve maintainer to fix unterminated string problem in
2739 "vacation" handling.
2740
6e2b4ccc
PH
274184. Some minor changes to the Linux configuration files to help with other
2742 OS variants using glibc.
2743
8e669ac1
PH
274485. One more patch for Sieve to update vacation handling to latest spec.
2745
495ae4b0 2746
bbe902f0
PH
2747----------------------------------------------------
2748See the note above about the 4.44 and 4.50 releases.
2749----------------------------------------------------
2750
2751
2752Exim version 4.44
2753-----------------
2754
2755 1. Change 4.43/35 introduced a bug that caused file counts to be
2756 incorrectly computed when quota_filecount was set in an appendfile
2757 transport
2758
2759 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2760 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2761 place.
2762
2763 3. Give more explanation in the error message when the command for a transport
2764 filter fails to execute.
2765
2766 4. There are several places where Exim runs a non-Exim command in a
2767 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2768 was being done only for the command run by the queryprogram router. It is
2769 now done for all such subprocesses. The other cases are: ${run, transport
2770 filters, and the commands run by the lmtp and pipe transports.
2771
2772 5. Some older OS have a limit of 256 on the maximum number of file
2773 descriptors. Exim was using setrlimit() to set 1000 as a large value
2774 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2775 systems. I've change it so that if it can't get 1000, it tries for 256.
2776
2777 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2778 was an oversight, and furthermore, ever since the addition of extra
2779 controls (e.g. 4.43/32), the checks on when to allow different forms of
2780 "control" were broken. There should now be diagnostics for all cases when a
2781 control that does not make sense is encountered.
2782
2783 7. $recipients is now available in the predata ACL (oversight).
2784
2785 8. Tidy the search cache before the fork to do a delivery from a message
2786 received from the command line. Otherwise the child will trigger a lookup
2787 failure and thereby defer the delivery if it tries to use (for example) a
2788 cached ldap connection that the parent has called unbind on.
2789
2790 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2791 of $address_data from the recipient verification was clobbered by the
2792 sender verification.
2793
279410. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2795 was its contents. (It was OK if the option was not defined at all.)
2796
279711. A "Completed" log line is now written for messages that are removed from
2798 the spool by the -Mrm option.
2799
280012. $host_address is now set to the target address during the checking of
2801 ignore_target_hosts.
2802
280313. When checking ignore_target_hosts for an ipliteral router, no host name was
2804 being passed; this would have caused $sender_host_name to have been used if
2805 matching the list had actually called for a host name (not very likely,
2806 since this list is usually IP addresses). A host name is now passed as
2807 "[x.x.x.x]".
2808
280914. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2810 code that specifies a non-restarting handler (typically sigaction() in
2811 modern systems) in an attempt to fix a rare and obscure crash bug.
2812
281315. Narrowed the window for a race in the daemon that could cause it to ignore
2814 SIGCHLD signals. This is not a major problem, because they are used only to
2815 wake it up if nothing else does.
2816
281716. A malformed maildirsize file could cause Exim to calculate negative values
2818 for the mailbox size or file count. Odd effects could occur as a result.
2819 The maildirsize information is now recalculated if the size or filecount
2820 end up negative.
2821
282217. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2823 support for a long time. Removed HAVE_SYS_VFS_H.
2824
ea3a6f44 282518. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2826
282719. Allow an empty sender to be matched against a lookup in an address list.
2828 Previously the only cases considered were a regular expression, or an
2829 empty pattern.
2830
283120. Exim went into a mad DNS lookup loop when doing a callout where the
2832 host was specified on the transport, if the DNS lookup yielded more than
2833 one IP address.
2834
ea3a6f44
NM
283521. The RFC2047 encoding function was originally intended for short strings
2836 such as real names; it was not keeping to the 75-character limit for
2837 encoded words that the RFC imposes. It now respects the limit, and
2838 generates multiple encoded words if necessary. To be on the safe side, I
2839 have increased the buffer size for the ${rfc2047: expansion operator from
2840 1024 to 2048 bytes.
bbe902f0 2841
ea3a6f44
NM
284222. Failure to deliver a bounce message always caused it to be frozen, even if
2843 there was an errors_to setting on the router. The errors_to setting is now
2844 respected.
bbe902f0
PH
2845
284623. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2847 canonical form (fully expanded) before being placed in
2848 $sender_host_address.
2849
285024. Updated eximstats to version 1.33
2851
ea3a6f44
NM
285225. Include certificate and key file names in error message when GnuTLS fails
2853 to set them up, because the GnuTLS error message doesn't include the name
2854 of the failing file when there is a problem reading it.
bbe902f0
PH
2855
285626. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2857 As per change 25.
bbe902f0 2858
ea3a6f44
NM
285927. Reset the locale to "C" after calling embedded Perl, in case it was changed
2860 (this can affect the format of dates).
bbe902f0 2861
ea3a6f44
NM
286228. exim_tidydb, when checking for the continued existence of a message for
2863 which it has found a message-specific retry record, was not finding
2864 messages that were in split spool directories. Consequently, it was
2865 deleting retry records that should have stayed in existence.
bbe902f0
PH
2866
286729. eximstats updated to version 1.35
2868 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2869 1.35 - bugfix such that pie charts by volume are generated correctly
2870
ea3a6f44
NM
287130. The SPA authentication driver was not abandoning authentication and moving
2872 on to the next authenticator when an expansion was forced to fail,
2873 contradicting the general specification for all authenticators. Instead it
2874 was generating a temporary error. It now behaves as specified.
bbe902f0 2875
ea3a6f44
NM
287631. The default ordering of permitted cipher suites for GnuTLS was pessimal
2877 (the order specifies the preference for clients). The order is now AES256,
2878 AES128, 3DES, ARCFOUR128.
bbe902f0 2879
ea3a6f44
NM
288031. Small patch to Sieve code - explicitly set From: when generating an
2881 autoreply.
bbe902f0 2882
ea3a6f44
NM
288332. Exim crashed if a remote delivery caused a very long error message to be
2884 recorded - for instance if somebody sent an entire SpamAssassin report back
2885 as a large number of 550 error lines. This bug was coincidentally fixed by
2886 increasing the size of one of Exim's internal buffers (big_buffer) that
2887 happened as part of the Exiscan merge. However, to be on the safe side, I
2888 have made the code more robust (and fixed the comments that describe what
2889 is going on).
bbe902f0 2890
ea3a6f44
NM
289133. Some experimental protocols are using DNS PTR records for new purposes. The
2892 keys for these records are domain names, not reversed IP addresses. The
2893 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2894 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2895 CAN-2005-0021
2896
ea3a6f44
NM
289734. The host_aton() function is supposed to be passed a string that is known
2898 to be a valid IP address. However, in the case of IPv6 addresses, it was
2899 not checking this. This is a hostage to fortune. Exim now panics and dies
2900 if the condition is not met. A case was found where this could be provoked
2901 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2902 components; fortuitously, this particular loophole had already been fixed
2903 by change 4.50/55 or 4.44/33 above.
2904
2905 If there are any other similar loopholes, the new check in host_aton()
2906 itself should stop them being exploited. The report I received stated that
2907 data on the command line could provoke the exploit when Exim was running as
2908 exim, but did not say which command line option was involved. All I could
2909 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2910 running as the user.
bbe902f0
PH
2911 CAN-2005-0021
2912
ea3a6f44
NM
291335. There was a buffer overflow vulnerability in the SPA authentication code
2914 (which came originally from the Samba project). I have added a test to the
2915 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2916 CAN-2005-0022
2917
ea3a6f44
NM
291836. The daemon start-up calls getloadavg() while still root for those OS that
2919 need the first call to be done as root, but it missed one case: when
2920 deliver_queue_load_max is set with deliver_drop_privilege. This is
2921 necessary for the benefit of the queue runner, because there is no re-exec
2922 when deliver_drop_privilege is set.
bbe902f0 2923
ea3a6f44
NM
292437. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2925 was in use, was not putting the data itself into the right store pool;
2926 consequently, it could be overwritten for a subsequent message in the same
2927 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2928 the caching.)
bbe902f0 2929
ea3a6f44
NM
293038. Sometimes the final signoff response after QUIT could fail to get
2931 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2932 < 0 before doing a fflush(). This bug looks as though it goes back to the
2933 introduction of TLS in release 3.20, but "sometimes" must have been rare
2934 because the tests only now provoked it.
bbe902f0
PH
2935
2936
495ae4b0
PH
2937Exim version 4.43
2938-----------------
2939
2940 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2941 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2942 Now it returns an integer. A number of calls were still expecting a T/F
2943 return. Fortuitously, in all cases, the tests worked in OK situations,
2944 which is the norm. However, things would have gone wrong on any write
2945 failures on the smtp file descriptor. This function is used when sending
2946 messages over SMTP and also when doing verify callouts.
2947
2948 2. When Exim is called to do synchronous delivery of a locally submitted
2949 message (the -odf or -odi options), it no longer closes stderr before doing
2950 the delivery.
2951
2952 3. Implemented the mua_wrapper option.
2953
2954 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2955
2956 5. Implemented the functions header_remove(), header_testname(),
2957 header_add_at_position(), and receive_remove_recipient(), and exported them
2958 to local_scan().
2959
2960 6. If an ACL "warn" statement specified the addition of headers, Exim already
2961 inserted X-ACL-Warn: at the start if there was no header name. However, it
2962 was not making this test for the second and subsequent header lines if
2963 there were newlines in the string. This meant that an invalid header could
2964 be inserted if Exim was badly configured.
2965
2966 7. Allow an ACL "warn" statement to add header lines at the start or after all
2967 the Received: headers, as well as at the end.
2968
2969 8. Added the rcpt_4xx retry error code.
2970
2971 9. Added postmaster_mailfrom=xxx to callout verification option.
2972
297310. Added mailfrom=xxxx to the callout verification option, for verify=
2974 header_sender only.
2975
297611. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2977 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2978
297912. Inserted some casts to stop certain compilers warning when using pointer
2980 differences as field lengths or precisions in printf-type calls (mostly
2981 affecting debugging statements).
2982
298313. Added optional readline() support for -be (dynamically loaded).
2984
298514. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2986 same clock tick as a message's arrival, so that its received time was the
2987 same as the "first fail" time on the retry record, and that message
2988 remained on the queue past the ultimate address timeout, every queue runner
2989 would try a delivery (because it was past the ultimate address timeout) but
2990 after another failure, the ultimate address timeout, which should have then
2991 bounced the address, did not kick in. This was a "< instead of <=" error;
2992 in most cases the first failure would have been in the next clock tick
2993 after the received time, and all would be well.
2994
299515. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2996 being recognized when the domain list was tested by the match_domain
2997 condition in an expansion string.
2998
299916. Added the ${str2b64: operator.
3000
300117. Exim was always calling setrlimit() to set a large limit for the number of
3002 processes, without checking whether the existing limit was already
3003 adequate. (It did check for the limit on file descriptors.) Furthermore,
3004 errors from getrlimit() and setrlimit() were being ignored. Now they are
3005 logged to the main and panic logs, but Exim does carry on, to try to do its
3006 job under whatever limits there are.
3007
300818. Imported PCRE 5.0.
3009
301019. Trivial typo in log message " temporarily refused connection" (the leading
3011 space).
3012
301320. If the log selector return_path_on_delivery was set and an address was
3014 redirected to /dev/null, the delivery process crashed because it assumed
3015 that a return path would always be set for a "successful" delivery. In this
3016 case, the whole delivery is bypassed as an optimization, and therefore no
3017 return path is set.
3018
301921. Internal re-arrangement: the function for sending a challenge and reading
3020 a response while authentication was assuming a zero-terminated challenge
3021 string. It's now changed to take a pointer and a length, to allow for
3022 binary data in such strings.
3023
302422. Added the cyrus_sasl authenticator (code supplied by MBM).
3025
302623. Exim was not respecting finduser_retries when seeking the login of the
3027 uid under which it was called; it was always trying 10 times. (The default
3028 setting of finduser_retries is zero.) Also, it was sleeping after the final
3029 failure, which is pointless.
3030
303124. Implemented tls_on_connect_ports.
3032
303325. Implemented acl_smtp_predata.
3034
303526. If the domain in control=submission is set empty, Exim assumes that the
3036 authenticated id is a complete email address when it generates From: or
3037 Sender: header lines.
3038
303927. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3040 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3041 chown and chgrp in /bin and hostname in /usr/bin.
3042
304328. Exim was keeping the "process log" file open after each use, just as it
3044 does for the main log. This opens the possibility of it remaining open for
3045 long periods when the USR1 signal hits a daemon. Occasional processlog
3046 errors were reported, that could have been caused by this. Anyway, it seems
3047 much more sensible not to leave this file open at all, so that is what now
3048 happens.
3049
305029. The long-running daemon process does not normally write to the log once it
3051 has entered its main loop, and it closes the log before doing so. This is
3052 so that log files can straightforwardly be renamed and moved. However,
3053 there are a couple of unusual error situations where the daemon does write
3054 log entries, and I had neglected to close the log afterwards.
3055
305630. The text of an SMTP error response that was received during a remote
3057 delivery was being truncated at 512 bytes. This is too short for some of
3058 the long messages that one sometimes sees. I've increased the limit to
3059 1024.
3060
306131. It is now possible to make retry rules that apply only when a message has a
3062 specific sender, in particular, an empty sender.
3063
306432. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3065 it possible to be selective about when SMTP synchronization is enforced.
3066
306733. Added "control = caseful_local_part" and "control = "caselower_local_part".
3068
306932. Implemented hosts_connection_nolog.
3070
307133. Added an ACL for QUIT.
3072
307334. Setting "delay_warning=" to disable warnings was not working; it gave a
3074 syntax error.
3075
307635. Added mailbox_size and mailbox_filecount to appendfile.
3077
307836. Added control = no_multiline_responses to ACLs.
3079
308037. There was a bug in the logic of the code that waits for the clock to tick
3081 in the case where the clock went backwards by a substantial amount such
3082 that the microsecond fraction of "now" was more than the microsecond
3083 fraction of "then" (but the whole seconds number was less).
3084
308538. Added support for the libradius Radius client library this is found on
3086 FreeBSD (previously only the radiusclient library was supported).
3087
3088
3089Exim version 4.42
3090-----------------
3091
3092 1. When certain lookups returned multiple values in the form name=value, the
3093 quoting of the values was not always being done properly. Specifically:
3094 (a) If the value started with a double quote, but contained no whitespace,
3095 it was not quoted.
3096 (b) If the value contained whitespace other than a space character (i.e.
3097 tabs or newlines or carriage returns) it was not quoted.
3098 This fix has been applied to the mysql and pgsql lookups by writing a
3099 separate quoting function and calling it from the lookup code. The fix
3100 should probably also be applied to nisplus, ibase and oracle lookups, but
3101 since I cannot test any of those, I have not disturbed their existing code.
3102
3103 2. A hit in the callout cache for a specific address caused a log line with no
3104 reason for rejecting RCPT. Now it says "Previous (cached) callout
3105 verification failure".
3106
3107 3. There was an off-by-one bug in the queryprogram router. An over-long
3108 return line was truncated at 256 instead of 255 characters, thereby
3109 overflowing its buffer with the terminating zero. As well as fixing this, I
3110 have increased the buffer size to 1024 (and made a note to document this).
3111
3112 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3113 when Exim is waiting for an SMTP response from a remote server, Exim
3114 restarts its select() call on the socket, thereby resetting its timeout.
3115 This is not a problem when such interrupts are rare. Somebody set up a cron
3116 job to run exiwhat every 2 minutes, which is less than the normal select()
3117 timeout (5 or 10 minutes). This meant that the select() timeout never
3118 kicked in because it was always reset. I have fixed this by comparing the
3119 time when an interrupt arrives with the time at the start of the first call
3120 to select(). If more time than the timeout has elapsed, the interrupt is
3121 treated as a timeout.
3122
3123 5. Some internal re-factoring in preparation for the addition of Sieve
3124 extensions (by MH). In particular, the "personal" test is moved to a
3125 separate function, and given an option for scanning Cc: and Bcc: (which is
3126 not set for Exim filters).
3127
3128 6. When Exim created an email address using the login of the caller as the
3129 local part (e.g. when creating a From: or Sender: header line), it was not
3130 quoting the local part when it contained special characters such as @.
3131
3132 7. Installed new OpenBSD configuration files.
3133
3134 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3135 try to make them clearer.
3136
3137 9. Callout options, other than the timeout value, were being ignored when
3138 verifying sender addresses in header lines. For example, when using
3139
3140 verify = header_sender/callout=no_cache
3141
3142 the cache was (incorrectly) being used.
3143
314410. Added a missing instance of ${EXE} to the exim_install script; this affects
3145 only the Cygwin environment.
3146
314711. When return_path_on_delivery was set as a log selector, if different remote
3148 addresses in the same message used different return paths and parallel
3149 remote delivery occurred, the wrong values would sometimes be logged.
3150 (Whenever a remote delivery process finished, the return path value from
3151 the most recently started remote delivery process was logged.)
3152
315312. RFC 3848 specifies standard names for the "with" phrase in Received: header
3154 lines when AUTH and/or TLS are in use. This is the "received protocol"
3155 field. Exim used to use "asmtp" for authenticated SMTP, without any
3156 indication (in the protocol name) for TLS use. Now it follows the RFC and
3157 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3158 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3159 names appear in log lines as well as in Received: header lines.
3160
316113. Installed MH's patches for Sieve to add the "copy" and "vacation"
3162 extensions, and comparison tests, and to fix some bugs.
3163
316414. Changes to the "personal" filter test:
3165
3166 (1) The test was buggy in that it was just doing the equivalent of
3167 "contains" tests on header lines. For example, if a user's address was
3168 anne@some.where, the "personal" test would incorrectly be true for
3169
3170 To: susanne@some.where
3171
3172 This test is now done by extracting each address from the header in turn,
3173 and checking the entire address. Other tests that are part of "personal"
3174 are now done using regular expressions (for example, to check local parts
3175 of addresses in From: header lines).
3176
3177 (2) The list of non-personal local parts in From: addresses has been
3178 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3179 taken from the Sieve specification recommendations.
3180
3181 (3) If the message contains any header line starting with "List-" it is
3182 treated as non-personal.
3183
3184 (4) The test for "circular" in the Subject: header line has been removed
3185 because it now seems ill-conceived.
3186
318715. Minor typos in src/EDITME comments corrected.
3188
318916. Installed latest exipick from John Jetmore.
3190
319117. If headers_add on a router specified a text string that was too long for
3192 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3193 of string_sprintf() is now avoided.
3194
319518. $message_body_size was not set (it was always zero) when running the DATA
3196 ACL and the local_scan() function.
3197
319819. For the "mail" command in an Exim filter, no default was being set for
3199 the once_repeat time, causing a random time value to be used if "once" was
3200 specified. (If the value happened to be <= 0, no repeat happened.) The
3201 default is now 0s, meaning "never repeat". The "vacation" command was OK
3202 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3203 (I found it when inspecting the code).
3204
320520. There is now an overall timeout for performing a callout verification. It
3206 defaults to 4 times the callout timeout, which applies to individual SMTP
3207 commands during the callout. The overall timeout applies when there is more
3208 than one host that can be tried. The timeout is checked before trying the
3209 next host. This prevents very long delays if there are a large number of
3210 hosts and all are timing out (e.g. when the network connections are timing
3211 out). The value of the overall timeout can be changed by specifying an
3212 additional sub-option for "callout", called "maxwait". For example:
3213
3214 verify = sender/callout=5s,maxwait=20s
3215
321621. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3217 to the end before writing, but this should make it even safer).
3218
321922. Exim was forgetting that it had advertised PIPELINING for the second and
3220 subsequent messages on an SMTP connection. It was also not resetting its
3221 memory on STARTTLS and an internal HELO.
3222
322323. When Exim logs an SMTP synchronization error within a session, it now
3224 records whether PIPELINING has been advertised or not.
3225
322624. Added 3 instances of "(long int)" casts to time_t variables that were being
3227 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3228 rather than long int.
3229
323025. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3231
323226. Added the never_mail option to autoreply.
3233
3234
3235Exim version 4.41
3236-----------------
3237
3238 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3239 crash if the getsockname() call failed; this can happen if a connection is
3240 closed very soon after it is established. The problem was simply in the
3241 order in which certain operations were done, causing Exim to try to write
3242 to the SMTP stream before it had set up the file descriptor. The bug has
3243 been fixed by making things happen in the correct order.
3244
3245
3246Exim version 4.40
3247-----------------
3248
3249 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3250 before the connection was closed, thus losing the rejection response.
3251
3252 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3253 some early Solaris releases, but causes trouble in current releases where
3254 socklen_t is defined.
3255
3256 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3257 always exist.
3258
3259 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3260 configured.
3261
3262 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3263 that releasing the top of it at the end releases what was used for sub-
3264 expansions (unless the block got too big). However, discard this block if
3265 the first thing is a variable or header, so that we can use its block when
3266 it is dynamic (useful for very large $message_headers, for example).
3267
3268 6. Lookups now cache *every* query, not just the most recent. A new, separate
3269 store pool is used for this. It can be recovered when all lookup caches are
3270 flushed. Lookups now release memory at the end of their result strings.
3271 This has involved some general refactoring of the lookup sources.
3272
3273 7. Some code has been added to the store_xxx() functions to reduce the amount
3274 of flapping under certain conditions.
3275
3276 8. log_incoming_interface used to affect only the <= reception log lines. Now
3277 it causes the local interface and port to be added to several more SMTP log
3278 lines, for example "SMTP connection from", and rejection lines.
3279
3280 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3281
328210. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3283
328411. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3285 could be overwritten at the end of the current message (or the start of a
3286 new message if it was set in a HELO ACL). The value is now preserved for
3287 the duration of the SMTP connection.
3288
328912. If a transport had a headers_rewrite setting, and a matching header line
3290 contained an unqualified address, that address was qualified, even if it
3291 did not match any rewriting rules. The underlying bug was that the values
3292 of the flags that permit the existence of unqualified sender and recipient
3293 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3294 non-local messages, and by -bnq for local messages) were not being
3295 preserved with the message after it was received.
3296
329713. When Exim was logging an SMTP synchronization error, it could sometimes log
3298 "next input=" as part of the text comprising the host identity instead of
3299 the correct text. The code was using the same buffer for two different
3300 strings. However, depending on which order the printing function evaluated
3301 its arguments, the bug did not always show up. Under Linux, for example, my
3302 test suite worked just fine.
3303
330414. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3305 doesn't work with some older versions of Perl. It has been changed to "my",
3306 which in any case is probably the better facility to use.
3307
330815. A really picky compiler found some instances of statements for creating
3309 error messages that either had too many or two few arguments for the format
3310 string.
3311
331216. The size of the buffer for calls to the DNS resolver has been increased
3313 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3314 for addresses that have a lot of PTR records. This alleviates a problem; it
3315 does not fully solve it.
3316
331717. A dnsdb lookup for PTR records that receives more data than will fit in the
3318 buffer now truncates the list and logs the incident, which is the same
3319 action as happens when Exim is looking up a host name and its aliases.
3320 Previously in this situation something unpredictable would happen;
3321 sometimes it was "internal error: store_reset failed".
3322
332318. If a server dropped the connection unexpectedly when an Exim client was
3324 using GnuTLS and trying to read a response, the client delivery process
3325 crashed while trying to generate an error log message.
3326
332719. If a "warn" verb in an ACL added multiple headers to a message in a single
3328 string, for example:
3329
3330 warn message = H1: something\nH2: something
3331
3332 the text was added as a single header line from Exim's point of view
3333 though it ended up OK in the delivered message. However, searching for the
3334 second and subsequent header lines using $h_h2: did not work. This has been
3335 fixed. Similarly, if a system filter added multiple headers in this way,
3336 the routers could not see them.
3337
333820. Expanded the error message when iplsearch is called with an invalid key to
3339 suggest using net-iplsearch in a host list.
3340
334121. When running tests using -bh, any delays imposed by "delay" modifiers in
3342 ACLs are no longer actually imposed (and a message to that effect is
3343 output).
3344
334522. If a "gecos" field in a passwd entry contained escaped characters, in
3346 particular, if it contained a \" sequence, Exim got it wrong when building
3347 a From: or a Sender: header from that name. A second bug also caused
3348 incorrect handling when an unquoted " was present following a character
3349 that needed quoting.
3350
335123. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3352 was not being matched caselessly.
3353
335424. Arranged for all hyphens in the exim.8 source to be escaped with
3355 backslashes.
3356
335725. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3358 properly. Recipient callout cache records were still being keyed to include
3359 the sender, even when use_sender was set false. This led to far more
3360 callouts that were necessary. The sender is no longer included in the key
3361 when use_sender is false.
3362
336326. Added "control = submission" modifier to ACLs.
3364
336527. Added the ${base62d: operator to decode base 62 numbers.
3366
336728. dnsdb lookups can now access SRV records.
3368
336929. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3370 the configuration file.
3371
337230. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3373 (-v) mode. This makes the output for a verbose queue run more intelligible.
3374
337531. Added a use_postmaster feature to recipient callouts.
3376
337732. Added the $body_zerocount variable, containing the number of binary zero
3378 bytes in the message body.
3379
338033. The time of last modification of the "new" subdirectory is now used as the
3381 "mailbox time last read" when there is a quota error for a maildir
3382 delivery.
3383
338434. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3385
338635. Added +ignore_unknown as a special item in host lists.
3387
338836. Code for decoding IPv6 addresses in host lists is now included, even if
3389 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3390 address was recognized as an IP address, but was then not correctly decoded
3391 into binary, causing unexpected and incorrect effects when compared with
3392 another IP address.
3393
3394
3395Exim version 4.34
3396-----------------
3397
3398 1. Very minor rewording of debugging text in manualroute to say "list of
3399 hosts" instead of "hostlist".
3400
3401 2. If verify=header_syntax was set, and a header line with an unqualified
3402 address (no domain) and a large number of spaces between the end of the
3403 name and the colon was received, the reception process suffered a buffer
3404 overflow, and (when I tested it) crashed. This was caused by some obsolete
3405 code that should have been removed. The fix is to remove it!
3406
3407 3. When running in the test harness, delay a bit after writing a bounce
3408 message to get a bit more predictability in the log output.
3409
3410 4. Added a call to search_tidyup() just before forking a reception process. In
3411 theory, someone could use a lookup in the expansion of smtp_accept_max_
3412 per_host which, without the tidyup, could leave open a database connection.
3413
3414 5. Added the variables $recipient_data and $sender_data which get set from a
3415 lookup success in an ACL "recipients" or "senders" condition, or a router
3416 "senders" option, similar to $domain_data and $local_part_data.
3417
3418 6. Moved the writing of debug_print from before to after the "senders" test
3419 for routers.
3420
3421 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3422 problems for message scanning, either using a data ACL, or using
3423 local_scan() because the Received: header was not generated till after they
3424 were called (in order to set the time as the time of reception completion).
3425 I have revised the way this works. The header is now generated after the
3426 body is received, but before the ACL or local_scan() are called. After they
3427 are run, the timestamp in the header is updated.
3428
3429
3430Exim version 4.33
3431-----------------
3432
3433 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3434 before starting a queue runner without re-exec. This happened only when
3435 deliver_drop_privilege was set or when the Exim user was set to root. The
3436 effect of the bug was that timeouts during subsequent deliveries caused
3437 crashes instead of being properly handled. The handler is now left at its
3438 default (and expected) setting.
3439
3440 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3441 message, again when deliver_drop_privilege is set or Exim is run as root.
3442 The bug described in (1) was not present in this case, but the tidying up
3443 of the other signals was missing. I have made the two cases consistent.
3444
3445 3. The ignore_target_hosts setting on a manualroute router was being ignored
3446 for hosts that were looked up using the /MX notation.
3447
3448 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3449 in domain lists.
3450
3451 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3452 operated on the sender address. After changing the $sender_address to <>
3453 for the sender address verify, Exim was re-instated it as the original
3454 (before rewriting) address, but remembering that it had rewritten it, so it
3455 wasn't rewriting it again. This bug also had the effect of breaking the
3456 sender address verification caching when the sender address was rewritten.
3457
3458 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3459 This has been changed so that if the ip literal address matches
3460 ignore_target_hosts, the router declines.
3461
3462 7. Added expansion conditions match_domain, match_address, and match_local_
3463 part (NOT match_host).
3464
3465 8. The placeholder for the Received: header didn't have a length field set.
3466
3467 9. Added code to Exim itself and to exim_lock to test for a specific race
3468 condition that could lead to file corruption when using MBX delivery. The
3469 issue is with the lockfile that is created in /tmp. If this file is removed
3470 after a process has opened it but before that process has acquired a lock,
3471 there is the potential for a second process to recreate the file and also
3472 acquire a lock. This could lead to two Exim processes writing to the file
3473 at the same time. The added code performs the same test as UW imapd; it
3474 checks after acquiring the lock that its file descriptor still refers to
3475 the same named file.
3476
347710. The buffer for building added header lines was of fixed size, 8192 bytes.
3478 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3479 when Exim is built.
3480
348111. Added the smtp_active_hostname option. If used, this will typically be made
3482 to depend on the incoming interface address. Because $interface_address is
3483 not set up until the daemon has forked a reception process, error responses
3484 that can happen earlier (such as "too many connections") no longer contain
3485 a host name.
3486
348712. If an expansion in a condition on a "warn" statement fails because a lookup
3488 defers, the "warn" statement is abandoned, and the next ACL statement is
3489 processed. Previously this caused the whole ACL to be aborted.
3490
349113. Added the iplsearch lookup type.
3492
349314. Added ident_timeout as a log selector.
3494
349515. Added tls_certificate_verified as a log selector.
3496
349716. Added a global option tls_require_ciphers (compare the smtp transport
3498 option of the same name). This controls incoming TLS connections.
3499
350017. I finally figured out how to make tls_require_ciphers do a similar thing
3501 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3502 before starting the TLS session.
3503
350418. Tabs are now shown as \t in -bP output.
3505
350619. If the log selector return_path_on_delivery was set, Exim crashed when
3507 bouncing a message because it had too many Received: header lines.
3508
350920. If two routers both had headers_remove settings, and the first one included
3510 a superfluous trailing colon, the final name in the first list and the
3511 first name in the second list were incorrectly joined into one item (with a
3512 colon in the middle).
3513
3514
3515Exim version 4.32
3516-----------------
3517
3518 1. Added -C and -D options to the exinext utility, mainly to make it easier
3519 to include in the automated testing, but these could be helpful when
3520 multiple configurations are in use.
3521
3522 2. The exinext utility was not formatting the output nicely when there was
3523 an alternate port involved in the retry record key, nor when there was a
3524 message id as well (for retries that were specific to a specific message
3525 and a specific host). It was also confused by IPv6 addresses, because of
3526 the additional colons they contain. I have fixed the IPv4 problem, and
3527 patched it up to do a reasonable job for IPv6.
3528