Correct handling of Resent-Date headers. Fixes: #590
[exim.git] / doc / doc-txt / ChangeLog
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4c69d561 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.561 2009/01/02 17:12:03 nm4 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
NM
6Exim version 4.70
7-----------------
8
cdd3bb85
TK
9TK/01 Added patch by Johannes Berg that expands the main option
10 "spamd_servers" if it starts with a dollar sign.
11
12TK/02 Write list of recipients to X-Envelope-Sender header when building
13 the mbox-format spool file for content scanning (suggested by Jakob
14 Hirsch)
15
16TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
17 (http://www.dcc-servers.net/) support via dccifd. Activated by
18 setting EXPERIMENTAL_DCC=yes in Local/Makefile. Check out
19 experimental_spec.txt for more documentation.
20
21TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
22 by Mark Daniel Reidel <mr@df.eu>.
23
210f147e
NM
24NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
25 When building exim an external PCRE library is now needed -
26 PCRE is a system library on the majority of modern systems.
27 See entry on PCRE_LIBS in EDITME file.
28
deafd5b3
NM
29NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
30 conversation. Added nologin parameter to request.
31 Patch contributed by Kirill Miazine
32
089793a4
TF
33TF/01 Do not log submission mode rewrites if they do not change the address.
34
5f16ca82
TF
35TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
36
dae9d94e
NM
37NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
38 log files in place. Contributed by Roberto Lima
39
3f0da4d0
NM
40NM/04 Bugzilla 667: close socket used by dovecot authenticator
41
06864c44
TF
42TF/03 Bugzilla 615: When checking the local_parts router precondition
43 after a local_part_suffix or local_part_prefix option, Exim now
44 does not use the address's named list lookup cache, since this
45 contains cached lookups for the whole local part.
46
65a7d8c3
NM
47NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
48 Robert Millan. Documentation is in experimental-spec.txt
49
23510047 50TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 51
5f28a6e8
NM
52NM/05 Bugzilla 437: Prevent Maildix aux files being created with mode 000
53
ce552449 54NM/05 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
55 Patch provided by Jan Srzednicki
56
89dec7b6
TF
57TF/05 Leading white space used to be stripped from $spam_report which
58 wrecked the formatting. Now it is preserved.
5f28a6e8 59
a99de90c
TF
60TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
61 that they are available at delivery time.
62
e2803e40
TF
63TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
64
7199e1ee
TF
65TF/08 TLS error reporting now respects the incoming_interface and
66 incoming_port log selectors.
67
e276e04b
TF
68TF/09 Produce a more useful error message if an SMTP transport's hosts
69 setting expands to an empty string.
70
ce552449
NM
71NM/06 Bugzilla 744: EXPN did not work under TLS.
72 Patch provided by Phil Pennock
73
e765a0f1
NM
74NM/07 Bugzilla 769: Extraneous comma in usage fprintf
75 Patch provided by Richard Godbee
76
4f054c63 77NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 78 acl_smtp_notquit, added index entry.
4f054c63 79
24c929a2
NM
80NM/09 Bugzilla 787: Potential buffer overflow in string_format
81 Patch provided by Eugene Bujak
82
cf73943b
NM
83NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
84 Patch provided by Maxim Dounin
85
b52bc06e
NM
86NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
87 Patch provided by Phil Pennock
88
447de4b0
NM
89NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
90
4c69d561
NM
91NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
92 Patch provided by Brad "anomie" Jorsch
93
deafd5b3 94
47db1125
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95Exim version 4.69
96-----------------
97
4b3504d0
TK
98TK/01 Add preliminary DKIM support. Currently requires a forked version of
99 ALT-N's libdkim that I have put here:
100 http://duncanthrax.net/exim-experimental/
101
102 Note to Michael Haardt: I had to rename some vars in sieve.c. They
103 were called 'true' and it seems that C99 defines that as a reserved
104 keyword to be used with 'bool' variable types. That means you could
105 not include C99-style headers which use bools without triggering
106 build errors in sieve.c.
107
81ea09ca
NM
108NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
109 as mailq or other aliases. Changed the --help handling significantly
110 to do whats expected. exim_usage() emits usage/help information.
111
f13cddcb
SC
112SC/01 Added the -bylocaldomain option to eximstats.
113
8ad076b2
NM
114NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
115
a843aaa6
NM
116NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
117
47db1125
NM
118NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
119
120
eb4c0de6
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121Exim version 4.68
122-----------------
123
124PH/01 Another patch from the Sieve maintainer.
125
6a3bceb1
PH
126PH/02 When an IPv6 address is converted to a string for single-key lookup
127 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
128 dots are used instead of colons so that keys in lsearch files need not
129 contain colons. This was done some time before quoting was made available
130 in lsearch files. However, iplsearch files do require colons in IPv6 keys
131 (notated using the quote facility) so as to distinguish them from IPv4
132 keys. This meant that lookups for IP addresses in host lists did not work
133 for iplsearch lookups.
134
135 This has been fixed by arranging for IPv6 addresses to be expressed with
136 colons if the lookup type is iplsearch. This is not incompatible, because
137 previously such lookups could never work.
138
139 The situation is now rather anomolous, since one *can* have colons in
140 ordinary lsearch keys. However, making the change in all cases is
141 incompatible and would probably break a number of configurations.
142
2e30fa9d
TK
143TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
144 version.
145
0806a9c5
MH
146MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
147 conversion specification without a maximum field width, thereby enabling
148 a rogue spamd server to cause a buffer overflow. While nobody in their
149 right mind would setup Exim to query an untrusted spamd server, an
150 attacker that gains access to a server running spamd could potentially
151 exploit this vulnerability to run arbitrary code as the Exim user.
152
ae276964
TK
153TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
154 $primary_hostname instead of what libspf2 thinks the hosts name is.
155
0f2cbd1b
MH
156MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
157 a directory entry by the name of the lookup key. Previously, if a
158 symlink pointed to a non-existing file or a file in a directory that
159 Exim lacked permissions to read, a lookup for a key matching that
160 symlink would fail. Now it is enough that a matching directory entry
161 exists, symlink or not. (Bugzilla 503.)
162
2b85bce7
PH
163PH/03 The body_linecount and body_zerocount variables are now exported in the
164 local_scan API.
165
93655c46
PH
166PH/04 Added the $dnslist_matched variable.
167
6c512171
PH
168PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
169 This means they are set thereafter only if the connection becomes
170 encrypted.
171
172PH/06 Added the client_condition to authenticators so that some can be skipped
173 by clients under certain conditions.
174
aa6dc513
PH
175PH/07 The error message for a badly-placed control=no_multiline_responses left
176 "_responses" off the end of the name.
177
a96603a0
PH
178PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
179
8f240103
PH
180PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
181 (without spaces) instead of just copying the configuration text.
182
183PH/10 Added the /noupdate option to the ratelimit ACL condition.
184
d677b2f2
PH
185PH/11 Added $max_received_linelength.
186
d52120f2
PH
187PH/12 Added +ignore_defer and +include_defer to host lists.
188
64f2600a
PH
189PH/13 Installed PCRE version 7.2. This needed some changes because of the new
190 way in which PCRE > 7.0 is built.
191
8669f003
PH
192PH/14 Implemented queue_only_load_latch.
193
a4dc33a8
PH
194PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
195 MAIL command. The effect was to mangle the value on 64-bit systems.
196
d6a60c0f
PH
197PH/16 Another patch from the Sieve maintainer.
198
8f128379
PH
199PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
200
8932dffe
PH
201PH/18 If a system quota error occurred while trying to create the file for
202 a maildir delivery, the message "Mailbox is full" was not appended to the
203 bounce if the delivery eventually timed out. Change 4.67/27 below applied
204 only to a quota excession during the actual writing of the file.
d6a60c0f 205
ddea74fa 206PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
207 characters?) which causes problems in log lines. The DN values are now
208 passed through string_printing() before being added to log lines.
209
ddea74fa 210PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
211 and InterBase are left for another time.)
212
ddea74fa
PH
213PH/21 Added message_body_newlines option.
214
ce9f225c
PH
215PH/22 Guard against possible overflow in moan_check_errorcopy().
216
19897d52
PH
217PH/23 POSIX allows open() to be a macro; guard against that.
218
bc64a74d
PH
219PH/24 If the recipient of an error message contained an @ in the local part
220 (suitably quoted, of course), incorrect values were put in $domain and
221 $local_part during the evaluation of errors_copy.
222
eb4c0de6 223
b4ed4da0
PH
224Exim version 4.67
225-----------------
226
22ad45c9
MH
227MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
228 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
229 Jan Srzednicki.
230
b4ed4da0
PH
231PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
232 issue a MAIL command.
233
431b7361
PH
234PH/02 In an ACL statement such as
235
236 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
237
238 if a client was not listed at all, or was listed with a value other than
239 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
240 the condition was not true (as it should be), so access was not denied.
241 The bug was that the ! inversion was incorrectly passed on to the second
242 item. This has been fixed.
243
244PH/03 Added additional dnslists conditions == and =& which are different from
245 = and & when the dns lookup returns more than one IP address.
246
83da1223
PH
247PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
248 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
249
54fc8428
PH
250PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
251 FSYNC, which compiles an option called disable_fsync that allows for
252 bypassing fsync(). The documentation is heavily laced with warnings.
253
34c5e8dd
SC
254SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
255
bbe15da8
PH
256PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
257 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
258 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
259 including adding "make clean"; (3) Added -fPIC when compiling the test
260 dynamically loaded module, to get rid of a warning.
261
0e8a9471
MH
262MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
263 message fails, move_frozen_messages = true and ignore_bounce_errors_after
264 = 0s. The bug is otherwise harmless.
265
f0872424
PH
266PH/07 There was a bug in the dovecot authenticator such that the value of
267 $auth1 could be overwritten, and so not correctly preserved, after a
268 successful authentication. This usually meant that the value preserved by
269 the server_setid option was incorrect.
270
b01dd148
PH
271PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
272
6bf342e1
PH
273PH/09 Installed PCRE release 7.0.
274
273f34d0
PH
275PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
276 run for batched SMTP input. It is now run at the start of every message
277 in the batch. While fixing this I discovered that the process information
278 (output by running exiwhat) was not always getting set for -bs and -bS
279 input. This is fixed, and it now also says "batched" for BSMTP.
280
cf8b11a5
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281PH/11 Added control=no_pipelining.
282
41c7c167
PH
283PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
284 patch, slightly modified), and move the expansion of helo_data till after
285 the connection is made in the smtp transport (so it can use these
286 values).
287
9c57cbc0
PH
288PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
289
f3f065bb
PH
290PH/14 Added log_selector = +pid.
291
047bdd8c
PH
292PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
293
0ce9abe6
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294PH/16 Add ${if forany and ${if forall.
295
0e22dfd1
PH
296PH/17 Added dsn_from option to vary the From: line in DSNs.
297
4c590bd1
PH
298PH/18 Flush SMTP output before performing a callout, unless control =
299 no_callout_flush is set.
300
09945f1e
PH
301PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
302 was true (the default) a successful delivery failed to delete the retry
303 item, thus causing premature timeout of the address. The bug is now
304 fixed.
305
c51b8e75
PH
306PH/20 Added hosts_avoid_pipelining to the smtp transport.
307
e28326d8
PH
308PH/21 Long custom messages for fakedefer and fakereject are now split up
309 into multiline reponses in the same way that messages for "deny" and
310 other ACL rejections are.
311
75b1493f
PH
312PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
313 with slight modification.
314
7c5214ec
PH
315PH/23 Applied sieve patches from the maintainer "tracking the latest notify
316 draft, changing the syntax and factoring some duplicate code".
317
4311097e
PH
318PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
319 for deliveries of the second and subsequent messages over the same SMTP
320 connection.
321
29f89cad
PH
322PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
323 ${reduce, with only minor "tidies".
324
5e687460
SC
325SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
326
c3611384
PH
327PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
328 expansion side effects.
329
5a11a7b4
PH
330PH/27 When a message times out after an over-quota error from an Exim-imposed
331 quota, the bounce message says "mailbox is full". This message was not
332 being given when it was a system quota that was exceeded. It now should
333 be the same.
334
0e20aff9
MH
335MH/03 Made $recipients available in local_scan(). local_scan() already has
336 better access to the recipient list through recipients_list[], but
337 $recipients can be useful in postmaster-provided expansion strings.
338
ca86f471
PH
339PH/28 The $smtp_command and $smtp_command_argument variables were not correct
340 in the case of a MAIL command with additional options following the
341 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
342 were accidentally chopped off.
343
a14e5636
PH
344PH/29 SMTP synchronization checks are implemented when a command is read -
345 there is a check that no more input is waiting when there shouldn't be
346 any. However, for some commands, a delay in an ACL can mean that it is
347 some time before the response is written. In this time, more input might
348 arrive, invalidly. So now there are extra checks after an ACL has run for
349 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
350 pipelining has not been advertised.
351
ec95d1a6
PH
352PH/30 MH's patch to allow iscntrl() characters to be list separators.
353
42855d71
PH
354PH/31 Unlike :fail:, a custom message specified with :defer: was not being
355 returned in the SMTP response when smtp_return_error_details was false.
356 This has been fixed.
357
57c2c631
PH
358PH/32 Change the Dovecot authenticator to use read() and write() on the socket
359 instead of the C I/O that was originally supplied, because problems were
360 reported on Solaris.
361
58c01c94
PH
362PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
363 Exim which did not show up earlier: it was assuming that a call to
364 SSL_CTX_set_info_callback() might give an error value. In fact, there is
365 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
366 was a macro that became an assignment, so it seemed to work. This has
367 changed to a proper function call with a void return, hence the compile
368 error. Exim's code has been fixed.
369
dee5a20a
PH
370PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
371 cpus.
372
d2ee6114
PH
373PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
374
b2d5182b
PH
375PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
376
79749a79
PH
377PH/37 If a message is not accepted after it has had an id assigned (e.g.
378 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
379 "Completed" line in the log. When some messages of this type were
380 selected by exigrep, they were listed as "not completed". Others were
381 picked up by some special patterns. I have improved the selection
382 criteria to be more general.
79749a79 383
c456d9bb
PH
384PH/38 The host_find_failed option in the manualroute router can now be set
385 to "ignore", to completely ignore a host whose IP address cannot be
386 found. If all hosts are ignored, the behaviour is controlled by the new
387 host_all_ignored option.
388
cd9868ec
PH
389PH/39 In a list of hosts for manualroute, if one item (either because of multi-
390 homing or because of multiple MX records with /mx) generated more than
391 one IP address, and the following item turned out to be the local host,
392 all the secondary addresses of the first item were incorrectly removed
393 from the list, along with the local host and any following hosts (which
394 is what is supposed to happen).
395
ebeaf996
PH
396PH/40 When Exim receives a message, it writes the login name, uid, and gid of
397 whoever called Exim into the -H file. In the case of the daemon it was
398 behaving confusingly. When first started, it used values for whoever
399 started the daemon, but after a SIGHUP it used the Exim user (because it
400 calls itself on a restart). I have changed the code so that it now always
401 uses the Exim user.
402
2679d413
PH
403PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
404 message are rejected with the same error (e.g. no authentication or bad
405 sender address), and a DATA command is nevertheless sent (as can happen
406 with PIPELINING or a stupid MUA), the error message that was given to the
407 RCPT commands is included in the rejection of the DATA command. This is
408 intended to be helpful for MUAs that show only the final error to their
409 users.
410
84024b72
PH
411PH/42 Another patch from the Sieve maintainer.
412
8005d38e
SC
413SC/02 Eximstats - Differentiate between permanent and temporary rejects.
414 Eximstats - Fixed some broken HTML links and added missing column headers
415 (Jez Hancock).
416 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
417 columns for Rejects, Temp Rejects, Ham, and Spam rows.
418
3298c6c6
SC
419SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
420
a43a27c5
PH
421PH/43 Yet another patch from the Sieve maintainer.
422
58eb016e 423PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
424 the response to the final '.' that terminates a message, but only in the
425 case where the client has not sent further data following the '.'
426 (unfortunately, this is allowed). However, in many cases there won't be
427 any further data because there won't be any more messages to send. A call
428 to select() can be used: if it shows that the input is "ready", there is
429 either input waiting, or the socket has been closed. An attempt to read
430 the next input character can distinguish the two cases. Previously, Exim
58eb016e 431 would have sent an OK response which the client would never have see.
563b63fa
PH
432 This could lead to message repetition. This fix should cure that, at
433 least in a lot of common cases.
58eb016e 434
b43a74ea
PH
435PH/45 Do not advertise STARTTLS in response to HELP unless it would be
436 advertised in response to EHLO.
437
b4ed4da0 438
5dd1517f
PH
439Exim version 4.66
440-----------------
441
442PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
443 fixed by 4.65/MH/01 (is this a record?) are fixed:
444
445 (i) An empty string was always treated as zero by the numeric comparison
446 operators. This behaviour has been restored.
447
448 (ii) It is documented that the numeric comparison operators always treat
449 their arguments as decimal numbers. This was broken in that numbers
450 starting with 0 were being interpreted as octal.
451
452 While fixing these problems I realized that there was another issue that
453 hadn't been noticed. Values of message_size_limit (both the global option
454 and the transport option) were treated as octal if they started with 0.
455 The documentation was vague. These values are now always treated as
456 decimal, and I will make that clear in the documentation.
457
458
93cfa765
TK
459Exim version 4.65
460-----------------
461
462TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
463 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
464 versions. (#438)
465
d6066548
MH
466MH/01 Don't check that the operands of numeric comparison operators are
467 integers when their expansion is in "skipping" mode (fixes bug
468 introduced by 4.64-PH/07).
469
4362ff0d
PH
470PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
471 child addresses, Exim now panics and dies. Previously, because the count
472 is held in a short int, deliveries were likely to be lost. As such a
473 large number of recipients for a single message is ridiculous
474 (performance will be very, very poor), I have chosen to impose a limit
475 rather than extend the field.
476
93cfa765 477
944e9e9c
TF
478Exim version 4.64
479-----------------
aa41d2de 480
21d74bd9
TK
481TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
482 leftover -K file (the existence of which was triggered by #402).
483 While we were at it, introduced process PID as part of the -K
484 filename. This should rule out race conditions when creating
485 these files.
486
487TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
488 processing considerably. Previous code took too long for large mails,
489 triggering a timeout which in turn triggers #401.
490
491TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
492 in the DK code in transports.c. sendfile() is not really portable,
493 hence the _LINUX specificness.
944e9e9c
TF
494
495TF/01 In the add_headers option to the mail command in an Exim filter,
496 there was a bug that Exim would claim a syntax error in any
497 header after the first one which had an odd number of characters
498 in the field name.
499
2b1c6e3a
PH
500PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
501 callout verification, Exim cached a "reject" for the entire domain. This
502 is correct for most verifications, but it is not correct for a recipient
503 verification with use_sender or use_postmaster set, because in that case
504 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
505 case of MAIL FROM:<> rejection from other early rejections (e.g.
506 rejection of HELO). When verifying a recipient using a non-null MAIL
507 address, the cache is ignored if it shows MAIL FROM:<> rejection.
508 Whatever the result of the callout, the value of the domain cache is
509 left unchanged (for any other kind of callout, getting as far as trying
510 RCPT means that the domain itself is ok).
511
1f872c80
PH
512PH/02 Tidied a number of unused variable and signed/unsigned warnings that
513 gcc 4.1.1 threw up.
514
515PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
516 manifest itself as EPIPE rather than ECONNECT. When tidying away a
517 session, the daemon ignores ECONNECT errors and logs others; it now
518 ignores EPIPE as well.
519
d203e649
PH
520PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
521 (quoted-printable decoding).
522
cc2ed8f7 523PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 524 later the small subsequent patch to fix an introduced bug.
f951fd57 525
ddfcd446
PH
526PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
527
d45b1de8
PH
528PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
529
530PH/08 An error is now given if message_size_limit is specified negative.
531
38a0a95f 532PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 533 to be given (somewhat) arbitrary names.
38a0a95f 534
a2405d83
JJ
535JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
536 in 4.64-PH/09.
537
538JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
539 miscellaneous code fixes
540
6ea85e9a
PH
541PH/10 Added the log_reject_target ACL modifier to specify where to log
542 rejections.
543
26da7e20
PH
544PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
545 hostname. This is wrong, because it relates to the incoming message (and
546 probably the interface on which it is arriving) and not to the outgoing
547 callout (which could be using a different interface). This has been
548 changed to use the value of the helo_data option from the smtp transport
549 instead - this is what is used when a message is actually being sent. If
550 there is no remote transport (possible with a router that sets up host
551 addresses), $smtp_active_hostname is used.
6ea85e9a 552
14aa5a05 553PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 554 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
555 (a) The code assumed that strncpy() returns a negative number on buffer
556 overflow, which isn't the case. Replaced with Exim's string_format()
557 function.
558 (b) There were several signed/unsigned issues. I just did the minimum
559 hacking in of casts. There is scope for a larger refactoring.
560 (c) The code used strcasecmp() which is not a standard C function.
561 Replaced with Exim's strcmpic() function.
562 (d) The code set only $1; it now sets $auth1 as well.
563 (e) A simple test gave the error "authentication client didn't specify
564 service in request". It would seem that Dovecot has changed its
565 interface. Fortunately there's a specification; I followed it and
566 changed what the client sends and it appears to be working now.
567
ff75a1f7
PH
568PH/13 Added $message_headers_raw to provide the headers without RFC 2047
569 decoding.
570
e6f6568e
PH
571PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
572 address A is aliased to B and C, where B exists and C does not. Without
573 -v the output is "A verified" because verification stops after a
574 successful redirection if more than one address is generated. However,
575 with -v the child addresses are also verified. Exim was outputting "A
576 failed to verify" and then showing the successful verification for C,
577 with its parentage. It now outputs "B failed to verify", showing B's
578 parentage before showing the successful verification of C.
579
d6f6e0dc
PH
580PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
581 look up a TXT record in a specific list after matching in a combined
582 list.
583
322050c2
PH
584PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
585 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
586 they consult the DNS. I had assumed they would set it the way they
587 wanted; and indeed my experiments on Linux seem to show that in some
588 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
589 To be on the safe side, however, I have now made the interface to
590 host_find_byname() similar to host_find_bydns(), with an argument
591 containing the DNS resolver options. The host_find_byname() function now
592 sets these options at its start, just as host_find_bydns() does. The smtp
593 transport options dns_qualify_single and dns_search_parents are passed to
594 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
595 of host_find_byname() use the default settings of RES_DEFNAMES
596 (qualify_single) but not RES_DNSRCH (search_parents).
597
08955dd3
PH
598PH/17 Applied (a modified version of) Nico Erfurth's patch to make
599 spool_read_header() do less string testing, by means of a preliminary
600 switch on the second character of optional "-foo" lines. (This is
601 overdue, caused by the large number of possibilities that now exist.
602 Originally there were few.) While I was there, I also converted the
603 str(n)cmp tests so they don't re-test the leading "-" and the first
604 character, in the hope this might squeeze out yet more improvement.
605
1eccaa59
PH
606PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
607 flag allowing group syntax was set by the header_syntax check but not
608 turned off, possible causing trouble later; (2) The flag was not being
609 set at all for the header_verify test, causing "group"-style headers to
610 be rejected. I have now set it in this case, and also caused header_
611 verify to ignore an empty address taken from a group. While doing this, I
612 came across some other cases where the code for allowing group syntax
613 while scanning a header line wasn't quite right (mostly, not resetting
614 the flag correctly in the right place). These bugs could have caused
615 trouble for malformed header lines. I hope it is now all correct.
616
602e59e5
PH
617PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
618 with the "reply" argument non-NULL. The code, however (which originally
619 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
620 but it didn't always do it. This confused somebody who was copying the
621 code for some other use. I have removed all the tests.
622
411ef850
PH
623PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
624 feature that was used to support insecure browsers during the U.S. crypto
625 embargo. It requires special client support, and Exim is probably the
626 only MTA that supported it -- and would never use it because real RSA is
627 always available. This code has been removed, because it had the bad
628 effect of slowing Exim down by computing (never used) parameters for the
629 RSA_EXPORT functionality.
630
7befa435
PH
631PH/21 On the advice of Timo Sirainen, added a check to the dovecot
632 authenticator to fail if there's a tab character in the incoming data
633 (there should never be unless someone is messing about, as it's supposed
634 to be base64-encoded). Also added, on Timo's advice, the "secured" option
635 if the connection is using TLS or if the remote IP is the same as the
636 local IP, and the "valid-client-cert option" if a client certificate has
637 been verified.
638
48da4259 639PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
640 authenticators. This can be used for authorization after authentication
641 succeeds. (In the case of plaintext, it servers for both authentication
642 and authorization.)
643
48da4259
PH
644PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
645 if any retry times were supplied.
646
d1d5595c
PH
647PH/24 Exim crashed if verify=helo was activated during an incoming -bs
648 connection, where there is no client IP address to check. In this
649 situation, the verify now always succeeds.
650
0ef732d9
PH
651PH/25 Applied John Jetmore's -Mset patch.
652
328895cc
PH
653PH/26 Added -bem to be like -Mset, but loading a message from a file.
654
fd700877
PH
655PH/27 In a string expansion for a processed (not raw) header when multiple
656 headers of the same name were present, leading whitespace was being
657 removed from all of them, but trailing whitespace was being removed only
658 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
659 before concatenation. Completely empty headers in a concatenation (as
660 before) are ignored.
fd700877 661
8dce1a6f
PH
662PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
663 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
664
17af4a17
PH
665PH/29 [Removed. This was a change that I later backed out, and forgot to
666 correct the ChangeLog entry (that I had efficiently created) before
667 committing the later change.]
f6c332bd
PH
668
669PH/30 Exim was sometimes attempting to deliver messages that had suffered
670 address errors (4xx response to RCPT) over the same connection as other
671 messages routed to the same hosts. Such deliveries are always "forced",
672 so retry times are not inspected. This resulted in far too many retries
673 for the affected addresses. The effect occurred only when there were more
674 hosts than the hosts_max_try setting in the smtp transport when it had
675 the 4xx errors. Those hosts that it had tried were not added to the list
676 of hosts for which the message was waiting, so if all were tried, there
677 was no problem. Two fixes have been applied:
678
679 (i) If there are any address or message errors in an SMTP delivery, none
680 of the hosts (tried or untried) are now added to the list of hosts
681 for which the message is waiting, so the message should not be a
682 candidate for sending over the same connection that was used for a
683 successful delivery of some other message. This seems entirely
684 reasonable: after all the message is NOT "waiting for some host".
685 This is so "obvious" that I'm not sure why it wasn't done
686 previously. Hope I haven't missed anything, but it can't do any
687 harm, as the worst effect is to miss an optimization.
688
689 (ii) If, despite (i), such a delivery is accidentally attempted, the
690 routing retry time is respected, so at least it doesn't keep
691 hammering the server.
692
c1114884
PH
693PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
694 in ${readsocket because some servers need this prod.
695
7a0743eb
PH
696PH/32 Added some extra debug output when updating a wait-xxx database.
697
0d85fa3f
PH
698PH/33 The hint "could be header name not terminated by colon", which has been
699 given for certain expansion errors for a long time, was not being given
700 for the ${if def:h_colon_omitted{... case.
701
1bf43b78
PH
702PH/34 The spec says: "With one important exception, whenever a domain list is
703 being scanned, $domain contains the subject domain." There was at least
704 one case where this was not true.
705
520de300
PH
706PH/35 The error "getsockname() failed: connection reset by peer" was being
707 written to the panic log as well as the main log, but it isn't really
708 panic-worthy as it just means the connection died rather early on. I have
709 removed the panic log writing for the ECONNRESET error when getsockname()
710 fails.
711
48c7f9e2
PH
712PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
713 runs only) independently of the message's sender address. This meant
714 that, if the 4xx error was in fact related to the sender, a different
715 message to the same recipient with a different sender could confuse
716 things. In particualar, this can happen when sending to a greylisting
717 server, but other circumstances could also provoke similar problems.
718 I have changed the default so that the retry time for these errors is now
719 based a combination of the sender and recipient addresses. This change
720 can be overridden by setting address_retry_include_sender=false in the
721 smtp transport.
722
99ea1c86
PH
723PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
724 remote server are returned as part of bounce messages. This was not
725 happening for LMTP over a pipe (the lmtp transport), but now it is the
726 same for both kinds of LMTP.
727
a2042e78
PH
728PH/38 Despite being documented as not happening, Exim was rewriting addresses
729 in header lines that were in fact CNAMEs. This is no longer the case.
730
4fbcfc2e
PH
731PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
732 and queue runs started by the daemon processed all messages. This has
733 been fixed so that -R and -S can now usefully be given with -q<time>.
734
aa41d2de
PH
735PH/40 Import PCRE release 6.7 (fixes some bugs).
736
af561417
PH
737PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
738
3cc66b45
PH
739PH/42 Give an error if -q is specified more than once.
740
194cc0e4
PH
741PH/43 Renamed the variables $interface_address and $interface_port as
742 $received_ip_address and $received_port, to make it clear that these
743 values apply to message reception, and not to the outgoing interface when
744 a message is delivered. (The old names remain recognized, of course.)
745
a401ddaa
PH
746PH/44 There was no timeout on the connect() call when using a Unix domain
747 socket in the ${readsocket expansion. There now is.
748
4e88a19f
PH
749PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
750 be meaningful with "accept".
751
d7d7b289
SC
752SC/01 Eximstats V1.43
753 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
754
755SC/02 Eximstats V1.44
756 Use a glob alias rather than an array ref in the generated
757 parser. This improves both readability and performance.
758
759SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
760 Collect SpamAssassin and rejection statistics.
761 Don't display local sender or destination tables unless
762 there is data to show.
763 Added average volumes into the top table text output.
764
765SC/04 Eximstats V1.46
766 Collect data on the number of addresses (recipients)
767 as well as the number of messages.
768
769SC/05 Eximstats V1.47
770 Added 'Message too big' to the list of mail rejection
771 reasons (thanks to Marco Gaiarin).
772
773SC/06 Eximstats V1.48
774 Mainlog lines which have GMT offsets and are too short to
775 have a flag are now skipped.
776
777SC/07 Eximstats V1.49 (Alain Williams)
778 Added the -emptyok flag.
779
780SC/08 Eximstats V1.50
781 Fixes for obtaining the IP address from reject messages.
782
0ea2a468
JJ
783JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
784 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
785 whitesspace changes from 4.64-PH/27
786
787JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
788 match 4.64-PH/13
789
790JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
791 are found, allow negative numbers in numeric criteria)
792
793JJ/06 exipick.20061117.2, added new $message_body_missing variable
794
795JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
796 to match changes made in 4.64-PH/43
797
8a10f5a4
PH
798PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
799
30e18802
PH
800PH/47 Put in an explicit test for a DNS lookup of an address record where the
801 "domain" is actually an IP address, and force a failure. This locks out
802 those revolvers/nameservers that support "A-for-A" lookups, in
803 contravention of the specifications.
804
55728a4f
PH
805PH/48 When a host name was looked up from an IP address, and the subsequent
806 forward lookup of the name timed out, the host name was left in
807 $sender_host_name, contrary to the specification.
d7d7b289 808
d7837193
PH
809PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
810 restricted to single-key lookups, Exim was not diagnosing an error if
811 * or *@ was used with a query-style lookup.
812
87054a31
PH
813PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
814
ea2c01d2
MH
815MH/01 local_scan ABI version incremented to 1.1. It should have been updated
816 long ago, but noone interested enough thought of it. Let's just say that
817 the "1.1" means that there are some new functions that weren't there at
818 some point in the past.
819
e4fa6968
PH
820PH/51 Error processing for expansion failure of helo_data from an smtp
821 transport during callout processing was broken.
822
56f5d9bd
PH
823PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
824 tested/used via the -bh/-bhc/-bs options.
825
922e1c28
PH
826PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
827 bug, fixed in subsequent PCRE releases).
828
21eb6e72
PH
829PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
830 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
831
a0540757
PH
832PH/55 Check for a ridiculously long file name in exim_dbmbuild.
833
944e9e9c 834
478be7b0
SC
835Exim version 4.63
836-----------------
837
838SC/01 Use a glob alias rather than an array ref in eximstats generated
839 parser. This improves both readability and performance.
840
841SC/02 Collect SpamAssassin and rejection statistics in eximstats.
842 Don't display local sender or destination tables in eximstats unless
843 there is data to show.
844 Added average volumes into the eximstats top table text output.
845
846SC/03 Collect data on the number of addresses (recipients) as well
847 as the number of messages in eximstats.
848
2b965a65
TF
849TF/01 Correct an error in the documentation for the redirect router. Exim
850 does (usually) call initgroups() when daemonizing.
478be7b0 851
45b91596
PH
852TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
853 with consistent privilege compared to when running as a daemon.
478be7b0 854
c59f5781
TF
855TF/03 Note in the spec that $authenticated_id is not set for local
856 submissions from trusted users.
857
90fc3069
TF
858TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
859 Thanks to Dean Brooks <dean@iglou.com> for the patch.
860
6083aca0
TF
861TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
862 by adding some example configuration directives to the default
863 configuration file. A little bit of work is required to uncomment the
864 directives and define how usernames and passwords are checked, but
865 there is now a framework to start from.
866
765b530f
PH
867PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
868 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
869 without this. I don't know how relevant this is to other LDAP libraries.
870
4e167a8c
PH
871PH/02 Add the verb name to the "unknown ACL verb" error.
872
4608d683
PH
873PH/03 Magnus Holmgren's patch for filter_prepend_home.
874
b8dc3e4a
PH
875PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
876
5418e93b
PH
877PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
878 directory not expanded when it should be if an expanded home directory
879 was set for the address (which is overridden by the transport).
880
b4a9bda2
PH
881PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
882 libradius.
883
45b91596
PH
884PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
885 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
886 because it is too late at that time, and has no effect.
887
5547e2c5
PH
888PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
889 security issue with \' (bugzilla #107). I could not use the
890 PQescapeStringConn() function, because it needs a PGconn value as one of
891 its arguments.
892
dbcef0ea
PH
893PH/08 When testing addresses using -bt, indicate those final addresses that
894 are duplicates that would not cause an additional delivery. At least one
895 person was confused, thinking that -bt output corresponded to deliveries.
896 (Suppressing duplicates isn't a good idea as you lose the information
897 about possibly different redirections that led to the duplicates.)
898
25257489
PH
899PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
900 systems where poll() doesn't work, in particular OS X.
901
c816d124
PH
902PH/10 Added more information to debugging output for retry time not reached.
903
a9ccd69a
PH
904PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
905 operations in malware.c.
906
75fa1910
PH
907PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
908 signatures.
909
a7d7aa58
PH
910PH/13 If write_rejectlog was set false when logging was sent to syslog with
911 syslog_duplication set false, log lines that would normally be written
912 both the the main log and to the reject log were not written to syslog at
913 all.
914
42119b09
PH
915PH/14 In the default configuration, change the use of "message" in ACL warn
916 statements to "add_header".
917
41609df5
PH
918PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
919 not followed by a command (e.g. "seen endif").
920
a5bd321b
PH
921PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
922 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
923 latter.
924
e85a7ad5 925PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
926 so that it is now:
927
e85a7ad5
PH
928 ${if or { \
929 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
930 { match{$h_precedence:}{(?i)bulk|list|junk} } \
931 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
932 }{no}{yes}}
933
e85a7ad5
PH
934 The Auto-Submitted: and various List- headers are standardised, whereas I
935 don't think Precedence: ever was.
5dff5817 936
d8fe1c03
PH
937PH/18 Refactored debugging code in route_finduser() to show more information,
938 in particular, the error code if getpwnam() issues one.
939
16282d2b
PH
940PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
941 This is apparently needed in addition to the PH/07 change above to avoid
942 any possible encoding problems.
943
35d40a98
PH
944PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
945 but not after initializing Perl.
946
034d99ab
PH
947PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
948 output them only if debugging. By default they are written stderr,
949 apparently, which is not desirable.
950
6ec97b1b
PH
951PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
952 queries.
953
e22ca4ac
JJ
954JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
955 --not options
956
957JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
958
33d73e3b
PH
959PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
960 authenticated or an ident call has been made. Suppress the default
961 values for $authenticated_id and $authenticated_sender (but permit -oMai
962 and -oMas) when testing with -bh.
963
9ecb03f3
PH
964PH/24 Re-jigged the order of the tests in the default configuration so that the
965 tests for valid domains and recipients precede the DNS black list and CSA
966 tests, on the grounds that those ones are more expensive.
967
084efe8d
PH
968PH/25 Exim was not testing for a space following SMTP commands such as EHLO
969 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
970 This bug exists in every version of Exim that I still have, right back to
971 0.12.
972
366fc9f0
PH
973PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
974 However, an attempt to turn on case-sensitivity in a regex key by
975 including (?-i) didn't work because the subject string was already
976 lowercased, and the effects were non-intuitive. It turns out that a
977 one-line patch can be used to allow (?-i) to work as expected.
978
c59f5781 979
c887c79e
TF
980Exim version 4.62
981-----------------
982
983TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
984 other effects) broke the use of negated acl sub-conditions.
985
1cce3af8
PH
986PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
987 patch).
988
afb3eaaf
PH
989PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
990 "Deny" causes Exim to reject the incoming connection with a 554 error.
991 Unfortunately, if there is a major crisis, such as a disk failure,
992 tcp-wrappers gives "deny", whereas what one would like would be some
993 kind of temporary error. A kludge has been added to help with this.
994 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
995 554 error is used if errno is still zero or contains ENOENT (which occurs
996 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
997 451 error is used.
998
e173618b
PH
999PH/03 Add -lutil to the default FreeBSD LIBS setting.
1000
dd16e114
PH
1001PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1002 errors. Otherwise a message that provokes a temporary error (when other
1003 messages do not) can cause a whole host to time out.
1004
f7fd3850
PH
1005PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1006 addresses were routed directly to files or pipes from a redirect router.
1007 File deliveries just didn't batch; pipe deliveries might have suffered
1008 odd errors.
1009
d87df92c
PH
1010PH/06 A failure to get a lock for a hints database would erroneously always say
1011 "Failed to get write lock", even when it was really a read lock.
1012
7e9f683d
PH
1013PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1014 of 0600. This has been changed to use the value of the lockfile_mode
1015 option (which defaults to 0600).
1016
bfad5236
PH
1017PH/08 Applied small patch from the Sieve maintainer.
1018
01c490df
PH
1019PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1020 folder from quota calculations, a direct delivery into this folder messed
1021 up the contents of the maildirsize file. This was because the regex was
1022 used only to exclude .Trash (or whatever) when the size of the mailbox
1023 was calculated. There was no check that a delivery was happening into an
1024 excluded directory. This bug has been fixed by ignoring all quota
1025 processing for deliveries into excluded directories.
1026
d6629cdc
PH
1027PH/10 Added the maildirfolder_create_regex option to appendfile.
1028
1cce3af8 1029
214e2000
PH
1030Exim version 4.61
1031-----------------
1032
1033PH/01 The code for finding all the local interface addresses on a FreeBSD
1034 system running IPv6 was broken. This may well have applied to all BSD
1035 systems, as well as to others that have similar system calls. The broken
1036 code found IPv4 interfaces correctly, but gave incorrect values for the
1037 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1038 that it would not match correctly against @[] and not recognize the IPv6
1039 addresses as local.
1040
f9daeae0
PH
1041PH/02 The ipliteral router was not recognizing addresses of the form user@
1042 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1043
7e66e54d
PH
1044PH/03 Added disable_ipv6.
1045
c8ea1597
PH
1046PH/04 Changed $reply_address to use the raw form of the headers instead of the
1047 decoded form, because it is most often used to construct To: headers
1048 lines in autoreplies, and the decoded form may well be syntactically
1049 invalid. However, $reply_address has leading white space removed, and all
1050 newlines turned into spaces so that the autoreply transport does not
1051 grumble.
1052
911f6fde
PH
1053PH/05 If group was specified without a user on a router, and no group or user
1054 was specified on a transport, the group from the router was ignored.
1055
47ca6d6c
PH
1056PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1057 for visible compile-time settings that can be used to change these
1058 numbers, for those that want even more. Backwards compatibility with old
1059 spool files has been maintained. However, going back to a previous Exim
1060 release will lost any variables that are in spool files.
1061
ed0e9820
PH
1062PH/07 Two small changes when running in the test harness: increase delay when
1063 passing a TCP/IP connection to a new process, in case the original
1064 process has to generate a bounce, and remove special handling of
1065 127.0.0.2 (sic), which is no longer necessary.
1066
eff37e47
PH
1067PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1068 be the same on different OS.
1069
1921d2ea
PH
1070PH/09 Moved a debug statement in filter processing to avoid a race problem when
1071 testing.
1072
b3f69ca8
JJ
1073JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1074 whether --show-vars was specified or not
1075
1076JJ/02 exipick: Added support for new ACL variable spool format introduced
1077 in 4.61-PH/06
1078
424a1c63
PH
1079PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1080 syntactically invalid From: or Reply-to: line, and a filter used this to
1081 generate an autoreply, and therefore failed to obtain an address for the
1082 autoreply, Exim could try to deliver to a non-existent relative file
1083 name, causing unrelated and misleading errors. What now happens is that
1084 it logs this as a hard delivery error, but does not attempt to create a
1085 bounce message.
1086
7a100415
PH
1087PH/11 The exinext utility has a -C option for testing purposes, but although
1088 the given file was scanned by exinext itself; it wasn't being passed on
1089 when Exim was called.
1090
19b9dc85
PH
1091PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1092 an end-of-file indication when reading a command response.
1093
309bd837
PH
1094PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1095 compiled. In many other places in Exim, IPv6 addresses are always
1096 recognized, so I have changed this. It also means that IPv4 domain
1097 literals of the form [IPV4:n.n.n.n] are now always recognized.
1098
59e82a2a
PH
1099PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1100 used if the router is not running as root, for example, when verifying at
1101 ACL time, or when using -bh. The debugging output from this situation was
1102 non-existent - all you got was a failure to exec. I have made two
1103 changes:
1104
1105 (a) Failures to set uid/gid, the current directory, or a process leader
1106 in a subprocess such as that created by queryprogram now generate
1107 suitable debugging ouput when -d is set.
1108
1109 (b) The queryprogram router detects when it is not running as root,
1110 outputs suitable debugging information if -d is set, and then runs
1111 the subprocess without attempting to change uid/gid.
1112
9edc04ce
PH
1113PH/15 Minor change to Makefile for building test_host (undocumented testing
1114 feature).
1115
1349e1e5
PH
1116PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1117 additional section of a DNS packet that returns MX or SRV records.
1118 Instead, it always explicitly searches for A/AAAA records. This avoids
1119 major problems that occur when a DNS server includes only records of one
1120 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1121 fixed another bug: if SRV records were looked up and the corresponding
1122 address records were *not* found in the additional section, the port
1123 values from the SRV records were lost.
1124
ea49d0e1
PH
1125PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1126 using the correct key (the original address) when searching the retry
1127 rules in order to find which one to use for generating the retry hint.
1128
064a94c9
PH
1129PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1130 adding the default one. Similarly, if it contains a Reply-To: header, the
1131 errors_reply_to option, if set, is not used.
1132
727071f8
PH
1133PH/19 When calculating a retry time, Exim used to measure the "time since
1134 failure" by looking at the "first failed" field in the retry record. Now
1135 it does not use this if it is later than than the arrival time of the
1136 message. Instead it uses the arrival time. This makes for better
1137 behaviour in cases where some deliveries succeed, thus re-setting the
1138 "first failed" field. An example is a quota failure for a huge message
1139 when small messages continue to be delivered. Without this change, the
1140 "time since failure" will always be short, possible causing more frequent
1141 delivery attempts for the huge message than are intended.
dd16e114 1142 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1143
f78eb7c6
PH
1144PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1145 $1, $2, $3) because the numerical variables can be reset during some
1146 expansion items (e.g. "match"), thereby losing the authentication data.
1147
21c28500
PH
1148PH/21 Make -bV show the size of off_t variables so that the test suite can
1149 decide whether to run tests for quotas > 2G.
1150
1151PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1152 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1153 filecount value is greater than 2G or if a quota value is greater than 2G
1154 on a system where the size of off_t is not greater than 4, a panic error
1155 is given.
1156
1688f43b
PH
1157PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1158 never match. The debug and -bh output now contains an explicit error
1159 message indicating a malformed IPv4 address or mask.
1160
1161PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1162 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1163 PH/23 above applies.
1164
9675b384
PH
1165PH/25 Do not write to syslog when running in the test harness. The only
1166 occasion when this arises is a failure to open the main or panic logs
1167 (for which there is an explicit test).
1168
6a3f1455
PH
1169PH/26 Added the /no_tell option to "control=freeze".
1170
dac79d3e
PH
1171PH/27 If a host name lookup failed very early in a connection, for example, if
1172 the IP address matched host_lookup and the reverse lookup yielded a name
1173 that did not have a forward lookup, an error message of the form "no IP
1174 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1175 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1176
5977a0b3
PH
1177PH/28 An enabling patch from MH: add new function child_open_exim2() which
1178 allows the sender and the authenticated sender to be set when
1179 submitting a message from within Exim. Since child_open_exim() is
1180 documented for local_scan(), the new function should be too.
1181
c91535f3
PH
1182PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1183 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1184 results in an empty string is now treated as unset.
1185
0d46a8c8
PH
1186PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1187
278c6e6c
PH
1188PH/31 Added sender_verify_fail logging option.
1189
2cbb4081
PH
1190PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1191 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1192 tidied the source and removed it altogether.
1193
3eef829e
PH
1194PH/33 When a queue run was abandoned because the load average was too high, a
1195 log line was always written; now it is written only if the queue_run log
1196 selector is set. In addition, the log line for abandonment now contains
1197 information about the queue run such as the pid. This is always present
1198 in "start" and "stop" lines but was omitted from the "abandon" line.
1199
1ab95fa6
PH
1200PH/34 Omit spaces between a header name and the colon in the error message that
1201 is given when verify = headers_syntax fails (if there are lots of them,
1202 the message gets confusing).
1203
230205fc
PH
1204PH/35 Change the default for dns_check_names_pattern to allow slashes within
1205 names, as there are now some PTR records that contain slashes. This check
1206 is only to protect against broken name servers that fall over on strange
1207 characters, so the fact that it applies to all lookups doesn't matter.
1208
75e0e026
PH
1209PH/36 Now that the new test suite is complete, we can remove some of the
1210 special code in Exim that was needed for the old test suite. For example,
1211 sorting DNS records because real resolvers return them in an arbitrary
1212 order. The new test suite's fake resolver always returns records in the
1213 same order.
1214
1215PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1216 bounces) except when queue_only is set, to avoid logging races between
1217 the different processes.
1218
145396a6
PH
1219PH/38 Panic-die if .include specifies a non-absolute path.
1220
3cd34f13
PH
1221PH/39 A tweak to the "H" retry rule from its user.
1222
11121d3d
JJ
1223JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1224 a label. They prevented compilation on older perls.
1225
1226JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1227 a warning to be raised on newish perls.
1228
1229JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1230 on queue. Changes to match documented behaviour of showing count of
1231 messages matching specified criteria.
1232
8def5aaf
PH
1233PH/40 Changed the default ident timeout from 30s to 5s.
1234
929ba01c
PH
1235PH/41 Added support for the use of login_cap features, on those BSD systems
1236 that have them, for controlling the resources used by pipe deliveries.
1237
2632889e
PH
1238PH/42 The content-scanning code uses fopen() to create files in which to put
1239 message data. Previously it was not paying any attention to the mode of
1240 the files. Exim runs with umask(0) because the rest of the code creates
1241 files with open(), and sets the required mode explicitly. Thus, these
1242 files were ending up world-writeable. This was not a big issue, because,
1243 being within the spool directory, they were not world-accessible. I have
1244 created a function called modefopen, which takes an additional mode
1245 argument. It sets umask(777), creates the file, chmods it to the required
1246 mode, then resets the umask. All the relevant calls to fopen() in the
1247 content scanning code have been changed to use this function.
1248
944a9c55
PH
1249PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1250 to 24 hours. This avoids potential overflow problems when processing G
1251 and H retry rules. I suspect nobody ever tinkers with this value.
1252
4a23603b
PH
1253PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1254
4730f942
PH
1255PH/45 When the plaintext authenticator is running as a client, the server's
1256 challenges are checked to ensure they are valid base64 strings. By
1257 default, the authentication attempt is cancelled if an invalid string is
1258 received. Setting client_ignore_invalid_base64 true ignores these errors.
1259 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1260 they are received. Thus, the responses can be made to depend on the
1261 challenges. If an invalid string is ignored, an empty string is placed in
1262 the variable.
1263
30dba1e6
PH
1264PH/46 Messages that are created by the autoreply transport now contains a
1265 References: header, in accordance with RFCs 2822 and 3834.
1266
382afc6b
PH
1267PH/47 Added authenticated_sender_force to the smtp transport.
1268
a86229cf
PH
1269PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1270
50c99ba6
PH
1271PH/49 Installed latest patch from the Sieve maintainer.
1272
d35e429d
PH
1273PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1274 was also set, the appendfile transport was unnecessarily scanning a
1275 directory of message files (e.g. for maildir delivery) to find the count
1276 of files (along with the size), even though it did not need this
1277 information. It now does the scan only if it needs to find either the
1278 size of the count of files.
1279
f90d018c
PH
1280PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1281
75def545
PH
1282PH/52 Two bugs concerned with error handling when the smtp transport is
1283 used in LMTP mode:
1284
1285 (i) Exim was not creating retry information for temporary errors given
1286 for individual recipients after the DATA command when the smtp transport
1287 was used in LMTP mode. This meant that they could be retried too
1288 frequently, and not timed out correctly.
1289
1290 (ii) Exim was setting the flag that allows error details to be returned
1291 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1292 recipients that were returned after the DATA command.
1293
1294PH/53 This is related to PH/52, but is more general: for any failing address,
1295 when detailed error information was permitted to be returned to the
1296 sender, but the error was temporary, then after the final timeout, only
1297 "retry timeout exceeded" was returned. Now it returns the full error as
1298 well as "retry timeout exceeded".
1299
c46782ef
PH
1300PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1301 do this, and (what is worse) MTAs that accept it.
1302
71fafd95
PH
1303PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1304 will now be deprecated.
1305
2c5db4fd
PH
1306PH/56 New os.c-cygwin from the Cygwin maintainer.
1307
9cf6b11a
JJ
1308JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1309 formats (previously only available in exim formats via -bpr, -bpru,
1310 and -bpra. Now also available in native and exiqgrep formats)
1311
1312JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1313 with very large, slow to parse queues
1314
1315JJ/08 exipick: added ! as generic prefix to negate any criteria format
1316
1317JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1318
898d150f
PH
1319PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1320 responses to authentication challenges, though it was showing the
1321 challenges; (ii) I've removed the CR characters from the debug output for
1322 SMTP output lines.
1323
46218253
PH
1324PH/58 Allow for the insertion of a newline as well as a space when a string
1325 is turned into more than one encoded-word during RFC 2047 encoding. The
1326 Sieve code now uses this.
1327
e97957bc
PH
1328PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1329 data_4xx, lost_connection, tls_required.
1330
81e509d7
PH
1331PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1332 message was being sent as an SMTP response.
1333
3d240ff7
PH
1334PH/61 Add -l and -k options to exicyclog.
1335
b37c4101
PH
1336PH/62 When verifying, if an address was redirected to one new address, so that
1337 verification continued, and the new address failed or deferred after
1338 having set something in $address_data, the value of $address_data was not
1339 passed back to the ACL. This was different to the case when no
1340 redirection occurred. The value is now passed back in both cases.
1341
79378e0f
PH
1342PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1343 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1344 use login_cap.h, so on its own it isn't the distinguishing feature. The
1345 new name refers directly to the setclassresources() function.
1346
e49c7bb4
PH
1347PH/65 Added configuration files for NetBSD3.
1348
d114ec46
PH
1349PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1350
f3d7df6c
PH
1351PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1352 is preferred over IPv4.
1353
715ab376
PH
1354PH/68 The bounce_return_message and bounce_return_body options were not being
1355 honoured for bounces generated during the reception of non-SMTP messages.
1356 In particular, this applied to messages rejected by the ACL. This bug has
1357 been fixed. However, if bounce_return_message is true and bounce_return_
1358 body is false, the headers that are returned for a non-SMTP message
1359 include only those that have been read before the error was detected.
1360 (In the case of an ACL rejection, they have all been read.)
1361
6b31b150
PH
1362PH/69 The HTML version of the specification is now built in a directory called
1363 spec_html instead of spec.html, because the latter looks like a path with
1364 a MIME-type, and this confuses some software.
1365
1366PH/70 Catch two compiler warnings in sieve.c.
1367
d515a917
PH
1368PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1369 function verify_get_ident() calls ip_connect() to connect a socket, but
1370 if the "connect()" function timed out, ip_connect() used to close the
1371 socket. However, verify_get_ident() also closes the socket later, and in
1372 between Exim writes to the log, which may get opened at this point. When
1373 the socket was closed in ip_connect(), the log could get the same file
1374 descriptor number as the socket. This naturally causes chaos. The fix is
1375 not to close the socket in ip_connect(); the socket should be closed by
1376 the function that creates it. There was only one place in the code where
1377 this was missing, in the iplookup router, which I don't think anybody now
1378 uses, but I've fixed it anyway.
1379
9b8fadde
PH
1380PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1381 well as to direct DNS lookups. Otherwise the handling of names in host
1382 lists is inconsistent and therefore confusing.
1383
214e2000 1384
5de37277
PH
1385Exim version 4.60
1386-----------------
1387
cc38ddbf
PH
1388PH/01 Two changes to the default runtime configuration:
1389
1390 (1) Move the checks for relay_from_hosts and authenticated clients from
1391 after to before the (commented out) DNS black list checks.
1392
1393 (2) Add control=submission to the relay_from_hosts and authenticated
1394 clients checks, on the grounds that messages accepted by these
1395 statements are most likely to be submissions.
5de37277 1396
72fdd6ae
PH
1397PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1398
1399 (1) Generate an error if the third argument for the ${prvs expansion is
1400 not a single digit.
1401
1402 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1403 string.
1404
1405 (3) Reset the variables that are obtained from the first argument of
1406 ${prvscheck and used in the second argument before leaving the code,
1407 because their memory is reclaimed, so using them afterwards may do
1408 silly things.
1409
1410 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1411 one (it's much easier than Tom thought :-).
1412
1413 (5) Because of (4), we can now allow for the use of $prvscheck_result
1414 inside the third argument.
cb9328de 1415
cb741023
PH
1416PH/03 For some reason, the default setting of PATH when running a command from
1417 a pipe transport was just "/usr/bin". I have changed it to
1418 "/bin:/usr/bin".
1419
f174f16e
PH
1420PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1421 anything to be listed in the output from -bV.
b2f5a032 1422
c25242d7
PH
1423PH/05 When a filter generated an autoreply, the entire To: header line was
1424 quoted in the delivery log line, like this:
1425
1426 => >A.N.Other <ano@some.domain> <original@ddress> ...
1427
1428 This has been changed so that it extracts the operative address. There
1429 may be more than one such address. If so, they are comma-separated, like
1430 this:
1431
1432 => >ano@some.domain,ona@other.domain <original@ddress> ...
1433
82c19f95
PH
1434PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1435 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1436 not being looked up in the rDNS to get a host name, Exim was showing the
1437 IP address twice in Received: lines, even though the IP addresses were
1438 identical. For example:
1439
1440 Received: from [1.2.3.4] (helo=[1.2.3.4])
1441
1442 However, if the real host name was known, it was omitting the HELO data
1443 if it matched the actual IP address. This has been tidied up so that it
1444 doesn't show the same IP address twice.
1445
d7ffbc12
PH
1446PH/07 When both +timestamp and +memory debugging was on, the value given by
1447 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1448 called by the debug printing, thereby overwriting the timestamp buffer.
1449 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1450
9f526266
PH
1451PH/08 When the original message was included in an autoreply transport, it
1452 always said "this is a copy of the message, including all the headers",
1453 even if body_only or headers_only was set. It now gives an appropriate
1454 message.
1455
87fcc8b9
PH
1456PH/09 Applied a patch from the Sieve maintainer which:
1457
1458 o fixes some comments
1459 o adds the (disabled) notify extension core
1460 o adds some debug output for the result of if/elsif tests
1461 o points to the current vacation draft in the documentation
1462 and documents the missing references header update
1463
1464 and most important:
1465
1466 o fixes a bug in processing the envelope test (when testing
1467 multiple envelope elements, the last element determinted the
1468 result)
1469
456682f5
PH
1470PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1471 Electronic Mail") by including:
1472
1473 Auto-submitted: auto-generated
1474
1475 in the messages that it generates (bounce messages and others, such as
1476 warnings). In the case of bounce messages for non-SMTP mesages, there was
1477 also a typo: it was using "Auto_submitted" (underscore instead of
1478 hyphen). Since every message generated by Exim is necessarily in response
1479 to another message, thes have all been changed to:
1480
1481 Auto-Submitted: auto-replied
1482
1483 in accordance with these statements in the RFC:
1484
1485 The auto-replied keyword:
1486
1487 - SHOULD be used on messages sent in direct response to another
1488 message by an automatic process,
1489
1490 - MUST NOT be used on manually-generated messages,
1491
1492 - MAY be used on Delivery Status Notifications (DSNs) and Message
1493 Disposition Notifications (MDNs),
1494
1495 - MUST NOT be used on messages generated by automatic or periodic
1496 processes, except for messages which are automatic responses to
1497 other messages.
1498
3e46c1aa
PH
1499PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1500 to the default Received: header definition.
456682f5 1501
49826d12
PH
1502PH/12 Added log selector acl_warn_skipped (default on).
1503
eba0c039
PH
1504PH/13 After a successful wildlsearch lookup, discard the values of numeric
1505 variables because (a) they are in the wrong storage pool and (b) even if
1506 they were copied, it wouldn't work properly because of the caching.
1507
a0d6ba8a
PH
1508PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1509 checking when decoding. Apparently there are clients that generate
1510 overlong encoded strings. Why am I not surprised?
1511
f0917727
PH
1512PH/15 If the first argument of "${if match_address" was not empty, but did not
1513 contain an "@" character, Exim crashed. Now it writes a panic log message
1514 and treats the condition as false.
1515
096fee00
PH
1516PH/16 In autoreply, treat an empty string for "once" the same as unset.
1517
024bd3c2
PH
1518PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1519 extension "envelope-auth". The code is finished and in agreement with
1520 other implementations, but there is no documentation so far and in fact,
1521 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1522 not changing the active code.
1523
1524 Print executed "if" and "elsif" statements when debugging is used. This
1525 helps a great deal to understand what a filter does.
1526
1527 Document more things not specified clearly in RFC3028. I had all this
1528 sorted out, when out of a sudden new issues came to my mind. Oops."
1529
df199fec
PH
1530PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1531 (Bugzilla #53).
1532
d27f1df3
PH
1533PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1534 canonical form (as documented). However, after a host name lookup from
1535 the IP address, check_host() was doing a simple string comparison with
1536 addresses acquired from the DNS when checking that the found name did
1537 have the original IP as one of its addresses. Since any found IPv6
1538 addresses are likely to be in abbreviated form, the comparison could
1539 fail. Luckily, there already exists a function for doing the comparison
1540 by converting both addresses to binary, so now that is used instead of
1541 the text comparison.
1542
96776534
PH
1543PH/20 There was another similar case to PH/19, when a complete host name was
1544 given in a host list; looking up its IP address could give an abbreviated
1545 form, whereas the current host's name might or might not be abbreviated.
1546 The same fix has been applied.
1547
5de37277 1548
9a799bc0
PH
1549Exim version 4.54
1550-----------------
1551
1552PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1553 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1554 It now does.
1555
99a4b039
PH
1556PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1557 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1558
1559PH/03 Typo: missing ".o" in src/pcre/Makefile.
1560
4b233853
PH
1561PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1562 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1563 Also, for "Auto-Submitted", treat anything other than "no" as
1564 non-personal, in accordance with RFC 3834. (Previously it treated
1565 anything starting "auto-" as non-personal.)
1566
8857ccfd
PH
1567TF/01 The control=submission/name=... option had a problem with syntax
1568 errors if the name included a slash character. The /name= option
1569 now slurps the rest of the string, so it can include any characters
1570 but it must come last in the list of options (after /sender_retain
1571 or /domain=).
1572
433a2980
PH
1573PH/05 Some modifications to the interface to the fake nameserver for the new
1574 testing suite.
1575
3e46c1aa 1576
9a799bc0 1577
e3a311ba
TK
1578Exim version 4.53
1579-----------------
1580
1581TK/01 Added the "success_on_redirect" address verification option. See
1582 NewStuff for rationale and an example.
1583
13b685f9
PH
1584PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1585
395ff96d
PH
1586PH/02 Patch to exigrep to allow it to work on syslog lines.
1587
5b68f6e4
PH
1588PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1589 fread() to skip over the body file's header line, because in Cygwin the
1590 header line is locked and is inaccessible.
1591
1ab52c69
PH
1592PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1593 co-exist for some time) to make it clear that it is the Exim ID that is
1594 referenced, not the Message-ID: header line.
1595
b07e6aa3
PH
1596PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1597 string_format() function, because snprintf() does not exist on all
1598 operating systems.
1599
254e032f
PH
1600PH/06 The use of forbid_filter_existstest now also locks out the use of the
1601 ${stat: expansion item.
1602
3af76a81
PH
1603PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1604 protocol synchronization error", to keep the pedants happy.
1605
2548ba04
PH
1606PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1607 well as for IRIX systems, when gcc is being used. See the host.c source
1608 file for comments.
1609
b6c6011d
PH
1610PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1611
cf39cf57
PH
1612PH/10 Named domain lists were not working if used in a queue_smtp_domains
1613 setting.
1614
f1513293
PH
1615PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1616 transport and to the smtp transport in LMTP mode.
1617
727549a4
PH
1618TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1619
af46795e
PH
1620PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1621 run a filter in a subprocess. This could lead to confusion in subsequent
1622 lookups in the parent process. There should also be a search_tidyup() at
1623 the end of the subprocess.
1624
d7b47fd0
PH
1625PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1626 only if the host matched helo_try_verify_hosts, which caused the
1627 verification to occur when the EHLO/HELO command was issued. The ACL just
1628 tested the remembered result. Now, if a previous verification attempt has
1629 not happened, "verify = helo" does it there and then.
1630
ee744174
JJ
1631JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1632
b582ab87
PH
1633TK/03 Fix log output including CR from clamd.
1634
41a13e0a
PH
1635PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1636 exist provoked a memory error which could cause a segfault.
1637
f625cc5a
PH
1638PH/15 Installed PCRE 6.2
1639
1640PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1641
21f7af35
PH
1642PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1643 of the problem. Specifically, suggested +O2 rather than +O1 for the
1644 HP-UX compiler.
1645
31480e42
PH
1646PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1647
2d280592
PH
1648PH/20 If a delivery was routed to a non-standard port by means of an SRV
1649 record, the port was not correctly logged when the outgoing_port log
1650 selector was set (it logged the transort's default port).
1651
7cd1141b
PH
1652PH/21 Added support for host-specific ports to manualroute, queryprogram,
1653 fallback_hosts, and "hosts" in the smtp transport.
1654
1655PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1656 host errors such as "Connection refused".
1657
750af86e
PH
1658PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1659 authentication with radiusclient 0.4.9:
1660
1661 - Error returned from rc_read_config was caught wrongly
1662 - Username/password not passed on to radius server due to wrong length.
1663
1664 The presumption is that some radiusclient API changes for 4.51/PH/17
1665 were not taken care of correctly. The code is still untested by me (my
1666 Linux distribution still has 0.3.2 of radiusclient), but it was
1667 contributed by a Radius user.
1668
1669PH/24 When doing a callout, the value of $domain wasn't set correctly when
1670 expanding the "port" option of the smtp transport.
1671
4304270b
TK
1672TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1673 while reading a MIME header. Thanks to Tom Hughes for a patch.
1674
750af86e
PH
1675PH/24 Include config.h inside local_scan.h so that configuration settings are
1676 available.
1677
64ffc24f
PH
1678PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1679 that in an ACL for RCPT (for example), you can examine exactly what was
1680 received.
1681
5dd9625b
PH
1682PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1683 commands, but it was not correctly comparing the address with the actual
1684 client host address. Thus, it would show the EHLO address in Received:
1685 header lines when this was not necessary.
1686
5591031b
PH
1687PH/27 Added the % operator to ${eval:}.
1688
ba18e66a
PH
1689PH/28 Exim tries to create and chdir to its spool directory when it starts;
1690 it should be ignoring failures (because with -C, for example, it has lost
1691 privilege). It wasn't ignoring creation failures other than "already
1692 exists".
1693
9cec981f
PH
1694PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1695 -bV or -d is used.
1696
aa2b5c79
PH
1697PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1698 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1699 too many continuations, the temporary file was not being removed, and the
1700 return code was incorrect.
aa2b5c79 1701
48a53b7f
PH
1702PH/31 Missing "BOOL" in function definition in filtertest.c.
1703
1c59d63b
PH
1704PH/32 Applied Sieve patches from the maintainer.
1705
671012da
TK
1706TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1707
1509d3a8
PH
1708PH/33 Added "verify = not_blind".
1709
1710PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1711 Local/Makefile (with some defaults set). These are used in built scripts
1712 such as exicyclog, but they have never been used in the exim_install
1713 script (though there are many overriding facilities there). I have
1714 arranged that the exim_install script now takes note of these two
1715 settings.
1716
1717PH/35 Installed configuration files for Dragonfly.
1718
2fe1a124
PH
1719PH/36 When a locally submitted message by a trusted user did not contain a
1720 From: header, and the sender address was obtained from -f or from an SMTP
1721 MAIL command, and the trusted user did not use -F to supply a sender
1722 name, $originator_name was incorrectly used when constructing a From:
1723 header. Furthermore, $originator_name was used for submission mode
1724 messages from external hosts without From: headers in a similar way,
1725 which is clearly wrong.
1726
8800895a
PH
1727PH/37 Added control=suppress_local_fixups.
1728
ccfdb010
PH
1729PH/38 When log_selector = +received_sender was set, and the addition of the
1730 sender made the log line's construction buffer exactly full, or one byte
1731 less than full, an overflow happened when the terminating "\n" was
1732 subsequently added.
1733
1130bfb0
PH
1734PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1735 when the result of a list match is failure because a DNS lookup failed.
1736
ebcb507f
PH
1737PH/40 RM_COMMAND is now used in the building process.
1738
c35e155c
PH
1739PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1740 the "build-* directories that it finds.
1741
95d1f782
PH
1742PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1743 address in a domain literal was a prefix of an interface address.
1744
fd6de02e
PH
1745PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1746 when verifying a sender address, unless rewrite_headers is false.
1747
58de37c5
PH
1748PH/44 Wrote a long comment about why errors_to addresses are verified as
1749 recipients, not senders.
1750
261cf466
TF
1751TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1752 the ratelimit ACL was added.
1753
3ee512ff
PH
1754PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1755
e08c430f
PH
1756PH/46 Added extra information about PostgreSQL errors to the error string.
1757
bef5a11f
PH
1758PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1759 avoiding the need to install special zones in a real server. This is
1760 backwards compatible; if it can't find the fake resolver, it drops back.
1761 Thus, both old and new test suites can be run.
1762
7546de58
TF
1763TF/02 Added util/ratelimit.pl
1764
e5d5a95f
TF
1765TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1766 clock is set back in time.
1767
2e88a017
TF
1768TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1769 Candler <B.Candler@pobox.com>.
1770
a5f65aa4
TF
1771TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1772 OK for addresses that are the result of redirections.
1773
e7726cbf
PH
1774PH/48 A number of further additions for the benefit of the new test suite,
1775 including a fake gethostbyname() that interfaces to the fake DNS resolver
1776 (see PH/47 above).
1777
a7fdad5b
TF
1778TF/06 The fix for widen_domains has also been applied to qualify_single and
1779 search_parents which are the other dnslookup options that can cause
1780 header rewrites.
1781
6af56900
PH
1782PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1783 type ("H").
1784
0925ede6
PH
1785PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1786
66afa403
TF
1787TF/07 Exim produced the error message "an SRV record indicated no SMTP
1788 service" if it encountered an MX record with an empty target hostname.
1789 The message is now "an MX or SRV record indicated no SMTP service".
1790
0154e85a
TF
1791TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1792 if the DNS of the sending site is misconfigured. This is quite a
1793 common situation. This change restores the behaviour of treating a
1794 helo verification defer as a failure.
1795
16f12c76
PH
1796PH/51 If self=fail was set on a router, the bounce message did not include the
1797 actual error message.
1798
bbe902f0 1799
e5a9dba6
PH
1800Exim version 4.52
1801-----------------
1802
1803TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1804
22c3b60b
PH
1805PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1806 command itself ended in error, the underlying message about the transport
1807 filter timeout was being overwritten with the pipe command error. Now the
1808 underlying error message should be appended to the second error message.
1809
06a9b4b5
PH
1810TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1811
c1ac6996
PH
1812PH/02 Reduce the amount of output that "make" produces by default. Full output
1813 can still be requested.
1814
9c7a242c
PH
1815PH/03 The warning log line about a condition test deferring for a "warn" verb
1816 was being output only once per connection, rather than after each
1817 occurrence (because it was using the same function as for successful
1818 "warn" verbs). This seems wrong, so I have changed it.
1819
87ba3f5f
PH
1820TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1821 it should not have, which might have caused a crash in the right
1822 circumstances, but probably never did.
1823
1824PH/04 Installed a modified version of Tony Finch's patch to make submission
1825 mode fix the return path as well as the Sender: header line, and to
1826 add a /name= option so that you can make the user's friendly name appear
1827 in the header line.
1828
29aba418
TF
1829TF/03 Added the control = fakedefer ACL modifier.
1830
fe0dab11
TF
1831TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1832 Mark Lowes for thorough testing.
870f6ba8 1833
11d337a4
TK
1834TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1835
1836TK/03 Merged latest SRS patch from Miles Wilton.
1837
415c8f3b
PH
1838PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1839 with the definition in sysexits.h (which is #included earlier).
1840 Fortunately, Exim does not actually use EX_OK. The code used to try to
1841 preserve the sysexits.h value, by assumimg that macro definitions were
1842 scanned for macro replacements. I have been disabused of this notion,
1843 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1844
958541e9
PH
1845PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1846 in the smtp transport. When a block could not be written in a single
1847 write() function, the timeout was being re-applied to each part-write.
1848 This seems wrong - if the receiver was accepting one byte at a time it
1849 would take for ever. The timeout is now adjusted when this happens. It
1850 doesn't have to be particularly precise.
1851
c206415f
TK
1852TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1853 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1854
2a4be8f9
PH
1855PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1856 without a domain if the check to <postmaster@domain> fails.
1857
1cba11c5
SC
1858SC/01 Eximstats: added -xls and the ability to specify output files
1859 (patch written by Frank Heydlauf).
1860
1861SC/02 Eximstats: use FileHandles for outputing results.
1862
1863SC/03 Eximstats: allow any combination of xls, txt, and html output.
1864
1865SC/04 Eximstats: fixed display of large numbers with -nvr option
1866
1867SC/05 Eximstats: fixed merging of reports with empty tables.
1868
1869SC/06 Eximstats: added the -include_original_destination flag
1870
1871SC/07 Eximstats: removed tabs and trailing whitespace.
1872
1005d00e
TK
1873TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1874
1875TK/06 MBOX spool code: Add real "From " MBOX separator line
1876 so the .eml file is really in mbox format (even though
1877 most programs do not really care). Patch from Alex Miller.
1878
1879TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1880 The latter is generated from $received_to and is only set if the
1881 message has one envelope recipient. SA can use these headers,
1882 obviously out-of-the-box. Patch from Alex Miller.
1883
9b4768fa
PH
1884PH/08 The ${def test on a variable was returning false if the variable's
1885 value was "0", contrary to what the specification has always said!
1886 The result should be true unless the variable is empty.
1887
1888PH/09 The syntax error of a character other than { following "${if
1889 def:variable_name" (after optional whitespace) was not being diagnosed.
1890 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1891 accidental colon was present, for example, could give incorrect results.
1892
0d7eb84a
PH
1893PH/10 Tidied the code in a number of places where the st_size field of a stat()
1894 result is used (not including appendfile, where other changes are about
1895 to be made).
1896
1897PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1898 This involved changing a lot of size variables from int to off_t. It
1899 should work with maildirs and everything.
1900
40727bee
TK
1901TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1902 spamd dying while we are connected to it.
1903
554d2369
TF
1904TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1905 <jgh@wizmail.org>
1906
1f922db1
PH
1907PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1908 function for BDB 4.3.
1909
ef213c3b
PH
1910PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1911
8ac170f3
PH
1912PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1913 the sources for PCRE have been re-arranged and more files are now
1914 involved.
1915
b1c749bb
PH
1916PH/15 The code I had for printing potentially long long variables in PH/11
1917 above was not the best (it lost precision). The length of off_t variables
1918 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1919 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1920 to be "long long int" or "long int". This is needed for the internal
1921 formatting function string_vformat().
b1c749bb 1922
4aac9b49
PH
1923PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1924 the configuration file to be ":syslog", then the script "guesses" where
1925 the logs files are, rather than using the compiled in default. In our
1926 case the guess is not the same as the compiled default, so the script
1927 suddenly stopped working when I started to use syslog. The patch checks
1928 to see if log_file_path is "". If so, it attempts to read it from exim
1929 with no configuration file to get the compiled in version, before it
1930 falls back to the previous guessing code."
1931
294520c8
TK
1932TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1933 implementing BATV in an Exim configuration. See NewStuff for the gory
1934 details.
1935
5bd022fe
PH
1936PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1937 Makefile that are specific to HP-UX.
1938
90e9ce59
PH
1939PH/18 If the "use_postmaster" option was set for a recipient callout together
1940 with the "random" option, the postmaster address was used as the MAIL
1941 FROM address for the random test, but not for the subsequent recipient
1942 test. It is now used for both.
1943
5ea81592
PH
1944PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1945 patch removes a few documentation additions to RFC 3028, because the
1946 latest draft now contains them. It adds the new en;ascii-case comparator
1947 and a new error check for 8bit text in MIME parts. Comparator and
1948 require names are now matched exactly. I enabled the subaddress
1949 extension, but it is not well tested yet (read: it works for me)."
1950
c6c2dc1d
PH
1951PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1952 rework some of the code of TK/09 above to avoid the hardwired use of
1953 "%lld" and "long long". Replaced the call to snprintf() with a call to
1954 string_vformat().
1955
fffffe4c
PH
1956PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1957 records point to non-existent hosts", "retry timeout exceeded", and
1958 "retry time not reached for any host after a long failure period".
ca02eafb 1959
9a26b6b2
PH
1960PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1961 experimental DomainKeys support:
1962
1963 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1964 (2) On an error such as an illegally used "control", the wrong name for
1965 the control was given.
1966
1967 These problems did NOT occur unless DomainKeys support was compiled.
1968
4aee0225
PH
1969PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1970
32d668a5
PH
1971PH/24 Added ${if match_ip condition.
1972
8187c3f3
PH
1973PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1974 databases so that it will be absolutely obvious if a crash occurs in the
1975 DB library. This is a regular occurrence (often caused by mis-matched
1976 db.h files).
1977
ff790e47 1978PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1979 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1980 picked up on a user's system that detects such things. There doesn't seem
1981 to be a gcc warning option for this - only an attribute that has to be
1982 put on the function's prototype. It seems that in Fedora Core 4 they have
1983 set this on a number of new functions. No doubt there will be more in due
1984 course.
ff790e47 1985
5417f6d1
PH
1986PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1987 specify a transport. However, if an address that was verified by such a
1988 router was the subject of a callout, Exim crashed because it tried to
1989 read the rcpt_include_affixes from the non-existent transport. Now it
1990 just assumes that the setting of that option is false. This bug was
1991 introduced by 4.51/PH/31.
1992
59cf8544
PH
1993PH/28 Changed -d+all to exclude +memory, because that information is very
1994 rarely of interest, but it makes the output a lot bigger. People tend to
1995 do -d+all out of habit.
1996
e7ad8a65
PH
1997PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1998 code in os-type was giving problems when libc.so lives in lib64, like on
1999 x86_64 Fedora Core.
2000
ade42478
PH
2001PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2002 aren't the modern standard, and it seems that some systems' include files
2003 don't always have them. Exim was already checking for some of the newer
2004 ones like T_AAAA, and defining it itself. I've added checks for all the
2005 record types that Exim uses.
2006
182ad5cf
PH
2007PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2008 not automatically generating a new one, as it is supposed to. This
2009 prevented TLS from working. If the file did exist, but contained invalid
2010 data, a new version was generated, as expected. It was only the case of a
2011 non-existent file that was broken.
2012
b0d9fc80
TK
2013TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2014 with a change in libdomainkeys > 0.64.
2015
2016TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2017 from DNS. If the selector record carries the flag, it now has
2018 precedence over the domain-wide flag.
2019
2020TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2021
47c7a64a
PH
2022PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2023 the use of a port name that isn't defined in /etc/services) occurred, the
2024 message was deferred as in a normal delivery, and thus remained on the
2025 spool, instead of being failed because of the mua_wrapper setting. This
2026 is now fixed, and I tidied up some of the mua_wrapper messages at the
2027 same time.
2028
a388bce4
SC
2029SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2030 the messages in a hash of arrays rather than using individual hashes.
2031 This is a bit cleaner and results in dramatic memory savings, albeit
2032 at a slight CPU cost.
2033
2034SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2035 as requested by Marc Sherman.
2036
2037SC/10 Eximstats: added histograms for user specified patterns as requested
2038 by Marc Sherman.
2039
0793e4ed
SC
2040SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2041
c58b88df
PH
2042PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2043 fopen() in the content-scanning modules that did not already have it.
2044
e7ad8a65 2045
7982096b
PH
2046Exim version 4.51
2047-----------------
2048
1a46a8c5
PH
2049TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2050 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2051
2f079f46 2052TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2053
2054TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2055
2056PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2057 to test Sieve filters that use "vacation".
2058
2059PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2060 that changes the way the GnuTLS parameters are stored in the cache file.
2061 The new format can be generated externally. For backward compatibility,
2062 if the data in the cache doesn't make sense, Exim assumes it has read an
2063 old-format file, and it generates new data and writes a new file. This
2064 means that you can't go back to an older release without removing the
2065 file.
2066
2067PH/03 A redirect router that has both "unseen" and "one_time" set does not
2068 work if there are any delivery delays because "one_time" forces the
2069 parent to be marked "delivered", so its unseen clone is never tried
2070 again. For this reason, Exim now forbids the simultaneous setting of
2071 these two options.
2072
2073PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2074 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2075 entry if you want to know the details. The fix, however, neglected to
2076 consider the case when local delivery batching is involved. The test for
2077 "previously delivered" was not happening when checking to see if an
2078 address could be batched with a previous (undelivered) one; under
2079 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2080 address.
1a46a8c5
PH
2081
2082PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2083 in its include files, and this causes problems building Exim.
2084
2085PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2086 header_syntax) but Exim was just ignoring anything given after a slash.
2087 In particular, this caused confusion with an attempt to use "verify =
2088 reverse_host_lookup/defer_ok". An error is now given when options are
2089 supplied for verify items that do not have them. (Maybe reverse_host_
2090 lookup should have a defer_ok option, but that's a different point.)
2091
2092PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2093 defined by RFC 821) to 2048, because there were problems with some AUTH
2094 commands, and RFC 1869 says the size should be increased for extended
2095 SMTP commands that take arguments.
2096
2097PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2098 Finch).
2099
2100PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2101 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2102
49c2d5ea
PH
2103PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2104 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2105 whatever). Otherwise the password may appear in the log. Following change
2106 PH/42 below, there is no longer a chance of it appearing in a bounce
2107 message.
49c2d5ea 2108
bf759a8b
PH
2109PH/11 Installed exipick version 20050225.0 from John Jetmore.
2110
83364d30
PH
2111PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2112 of its addresses was ever tried. (Bugzilla bug #2.)
2113
7999bbd7
PH
2114PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2115 the result incorrectly in the debug output. (It correctly added a newline
2116 to what was transported.)
2117
7dbf77c9
PH
2118TF/01 Added $received_time.
2119
74e0617f
PH
2120PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2121 commented out examples of how to interface to a virus scanner and to
2122 SpamAssassin. Also added commented examples of av_scanner and
2123 spamd_address settings.
2124
2f079f46
PH
2125PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2126 and controls are allowed in which ACLs. There were a couple of minor
2127 errors. Some of the entries in the conditions table (which is a table of
2128 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2129 negation of where the condition IS allowed.
2130
8c841523
PH
2131PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2132
7766a4f0
PH
2133PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2134 header file does not have a version number, so I've had to invent a new
2135 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2136 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2137 radiusclient), but it was contributed by a Radius user.
2138
8b417f2c
PH
2139PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2140 files or directories, for OpenSSL.
2141
901f42cb
PH
2142PH/19 When an Exim process that is running as root has to create an Exim log
2143 file, it does so in a subprocess that runs as exim:exim so as to get the
2144 ownership right at creation (otherwise, other Exim processes might see
2145 the file with the wrong ownership). There was no test for failure of this
2146 fork() call, which would lead to the process getting stuck as it waited
2147 for a non-existent subprocess. Forks do occasionally fail when resources
2148 run out. I reviewed all the other calls to fork(); they all seem to check
2149 for failure.
2150
f9b9210e
PH
2151PH/20 When checking for unexpected SMTP input at connect time (before writing
2152 the banner), Exim was not dealing correctly with a non-positive return
2153 from the read() function. If the client had disconnected by this time,
2154 the result was a log entry for a synchronization error with an empty
2155 string after "input=" when read() returned zero. If read() returned -1
2156 (an event I could not check), uninitialized data bytes were printed.
2157 There were reports of junk text (parts of files, etc) appearing after
2158 "input=".
2159
54cdb463
PH
2160PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2161
cf00dad6
PH
2162PH/22 Added support for macro redefinition, and (re)definition in between
2163 driver and ACL definitions.
2164
acb1b346
PH
2165PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2166 forgetting to use the resulting value; it was using the unexpanded value.
2167
c5ddb310
PH
2168PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2169 hadn't been configured. The fix is from Juergen Kreileder, who
2170 understands it better than I do:
2171
2172 "Here's what I see happening with three configured cyrus_sasl
2173 authenticators configured (plain, login, cram-md5):
2174
2175 On startup auth_cyrus_sasl_init() gets called for each of these.
2176 This means three calls to sasl_listmech() without a specified mech_list.
2177 => SASL tests which mechs of all available mechs actually work
2178 => three warnings about OTP not working
2179 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2180
2181 With the patch, sasl_listmech() also gets called three times. But now
2182 SASL's mech_list option is set to the server_mech specified in the the
2183 authenticator. Or in other words, the answer from sasl_listmech()
2184 gets limited to just the mech you're testing for (which is different
2185 for each call.)
2186 => the return list contains just 'plain' or 'login', 'cram-md5' or
2187 nothing depending on the value of ob->server_mech.
2188
2189 I've just tested the patch: Authentication still works fine,
2190 unavailable mechs specified in the exim configuration are still
2191 caught, and the auth.log warnings about OTP are gone."
2192
31619da6
PH
2193PH/25 When debugging is enabled, the contents of the command line are added
2194 to the debugging output, even when log_selector=+arguments is not
2195 specified.
2196
bebaf0fc
PH
2197PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2198 answer is "GNU", and only if the return is "GNU/something" is the answer
2199 "Linux".
2200
475fe28a
PH
2201PH/27 $acl_verify_message is now set immediately after the failure of a
2202 verification in an ACL, and so is available in subsequent modifiers. In
2203 particular, the message can be preserved by coding like this:
2204
2205 warn !verify = sender
2206 set acl_m0 = $acl_verify_message
2207
2208 Previously, $acl_verify_message was set only while expanding "message"
2209 and "log_message" when a very denied access.
2210
7e8bec7a
PH
2211PH/28 Modified OS/os.c-Linux with
2212
2213 -#ifndef OS_LOAD_AVERAGE
2214 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2215
2216 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2217 nomenclature these days.)
2218
e4a89c47
PH
2219PH/29 Installed patch from the Sieve maintainer that adds the options
2220 sieve_useraddress and sieve_subaddress to the redirect router.
2221
5ca2a9a1
PH
2222PH/30 In these circumstances:
2223 . Two addresses routed to the same list of hosts;
2224 . First host does not offer TLS;
2225 . First host accepts first address;
2226 . First host gives temporary error to second address;
2227 . Second host offers TLS and a TLS session is established;
2228 . Second host accepts second address.
2229 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2230 and peerdn, if requested) that were in fact used only for the second
2231 address.
7e8bec7a 2232
c688b954
PH
2233PH/31 When doing a callout as part of verifying an address, Exim was not paying
2234 attention to any local part prefix or suffix that was matched by the
2235 router that accepted the address. It now behaves in the same way as it
2236 does for delivery: the affixes are removed from the local part unless
2237 rcpt_include_affixes is set on the transport.
2238
fed77020
PH
2239PH/32 Add the sender address, as F=<...>, to the log line when logging a
2240 timeout during the DATA phase of an incoming message.
2241
7fe1560f
PH
2242PH/33 Sieve envelope tests were broken for match types other than :is. I have
2243 applied a patch sanctioned by the Sieve maintainer.
c688b954 2244
ebb6e6d5
PH
2245PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2246 the uid or gid is negative. A case of a negative gid caused this to be
2247 noticed. The fix allows for either to be negative.
2248
9c4e8f60
PH
2249PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2250 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2251 overlooked.
2252
2253PH/36 The change PH/12 above was broken. Fixed it.
2254
d7174846
PH
2255PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2256 the grounds that routing the same address twice would always produce the
2257 same answer. This might have been true once, but it is certainly no
2258 longer true now. Routing a child address may depend on the previous
2259 routing that produced that child. Some complicated redirection strategies
2260 went wrong when messages had multiple recipients, and made Exim's
2261 behaviour dependent on the order in which the addresses were given.
2262
2263 I have moved the duplicate checking until after the routing is complete.
2264 Exim scans the addresses that are assigned to local and remote
2265 transports, and removes any duplicates. This means that more work will be
2266 done, as duplicates will always all be routed, but duplicates are
2267 presumably rare, so I don't expect this is of any significance.
2268
2269 For deliveries to pipes, files, and autoreplies, the duplicate checking
2270 still happens during the routing process, since they are not going to be
2271 routed further.
2272
cfe75fc3
PH
2273PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2274 It corrects a timeout issue with spamd. This is Ian's comment: "The
2275 background is that sometimes spamd either never reads data from a
2276 connection it has accepted, or it never writes response data. The exiscan
2277 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2278 blindly assumes that writes won't block so it may never time out."
2279
be22d70e
PH
2280PH/39 Allow G after quota size as well as K and M.
2281
0612b098
PH
2282PH/40 The value set for $authenticated_id in an authenticator may not contain
2283 binary zeroes or newlines because the value is written to log lines and
2284 to spool files. There was no check on this. Now the value is run through
2285 the string_printing() function so that such characters are converted to
2286 printable escape sequences.
2287
2e0c1448
PH
2288PH/41 $message_linecount is a new variable that contains the total number of
2289 lines in the message. Compare $body_linecount, which is the count for the
2290 body only.
2291
447d236c
PH
2292PH/42 Exim no longer gives details of delivery errors for specific addresses in
2293 bounce and delay warning messages, except in certain special cases, which
2294 are as follows:
2295
2296 (a) An SMTP error message from a remote host;
2297 (b) A message specified in a :fail: redirection;
2298 (c) A message specified in a "fail" command in a system filter;
2299 (d) A message specified in a FAIL return from the queryprogram router;
2300 (e) A message specified by the cannot_route_message router option.
2301
2302 In these cases only, Exim does include the error details in bounce and
2303 warning messages. There are also a few cases where bland messages such
2304 as "unrouteable address" or "local delivery error" are given.
2305
d20976dc
PH
2306PH/43 $value is now also set for the "else" part of a ${run expansion.
2307
f656d135
PH
2308PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2309 being worked on, but at least Exim now implements the latest version to
2310 play with."
2311
2e2a30b4
PH
2312PH/45 In a pipe transport, although a timeout while waiting for the pipe
2313 process to complete was treated as a delivery failure, a timeout while
2314 writing the message to the pipe was logged, but erroneously treated as a
2315 successful delivery. Such timeouts include transport filter timeouts. For
2316 consistency with the overall process timeout, these timeouts are now
2317 treated as errors, giving rise to delivery failures by default. However,
2318 there is now a new Boolean option for the pipe transport called
2319 timeout_defer, which, if set TRUE, converts the failures into defers for
2320 both kinds of timeout. A transport filter timeout is now identified in
2321 the log output.
2322
9176e9f0
PH
2323PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2324 systems where "make" and "gmake" are different, calling "gmake" at top
2325 level broke things. I've arranged for the value of $(MAKE) to be passed
2326 from the Makefile to this script so that it can call the same version of
2327 "make".
2328
7982096b 2329
bbe902f0
PH
2330A note about Exim versions 4.44 and 4.50
2331----------------------------------------
2332
2333Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2334changes of various kinds. As a consequence, a big documentation update was
2335needed. This delayed the release for rather longer than seemed good, especially
2336in the light of a couple of (minor) security issues. Therefore, the changes
2337that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2338release. So 4.44 and 4.50 are in effect two different branches that both start
2339from 4.43.
2340
2341I have left the 4.50 change log unchanged; it contains all the changes since
23424.43. The change log for 4.44 is below; many of its items are identical to
2343those for 4.50. This seems to be the most sensible way to preserve the
2344historical information.
2345
2346
f7b63901 2347Exim version 4.50
495ae4b0
PH
2348-----------------
2349
5fe762f6
PH
2350 1. Minor wording change to the doc/README.SIEVE file.
2351
139059f6 2352 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2353 computation of the current number of files was incorrect.
495ae4b0 2354
7086e875
PH
2355 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2356 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2357 place.
2358
35af9f61
PH
2359 4. Give more explanation in the error message when the command for a transport
2360 filter fails to execute.
2361
b668c215
PH
2362 5. There are several places where Exim runs a non-Exim command in a
2363 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2364 was being done only for the command run by the queryprogram router. It is
2365 now done for all such subprocesses. The other cases are: ${run, transport
2366 filters, and the commands run by the lmtp and pipe transports.
2367
a494b1e1
PH
2368 6. Added CONFIGURE_GROUP build-time option.
2369
2370 7. Some older OS have a limit of 256 on the maximum number of file
2371 descriptors. Exim was using setrlimit() to set 1000 as a large value
2372 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2373 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2374
c5fcb476
PH
2375 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2376 was an oversight, and furthermore, ever since the addition of extra
2377 controls (e.g. 4.43/32), the checks on when to allow different forms of
2378 "control" were broken. There should now be diagnostics for all cases when a
2379 control that does not make sense is encountered.
2380
69358f02
PH
2381 9. Added the /retain_sender option to "control=submission".
2382
5be20824
PH
238310. $recipients is now available in the predata ACL (oversight).
2384
eb2c0248
PH
238511. Tidy the search cache before the fork to do a delivery from a message
2386 received from the command line. Otherwise the child will trigger a lookup
2387 failure and thereby defer the delivery if it tries to use (for example) a
2388 cached ldap connection that the parent has called unbind on.
2389
2a3eea10
PH
239012. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2391 of $address_data from the recipient verification was clobbered by the
2392 sender verification.
2393
239413. The value of address_data from a sender verification is now available in
2395 $sender_address_data in subsequent conditions in the ACL statement.
2396
23c7ff99
PH
239714. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2398
4deaf07d
PH
239915. Added a new option "connect=<time>" to callout options, to set a different
2400 connection timeout.
2401
926e1192
PH
240216. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2403 was its contents. (It was OK if the option was not defined at all.)
2404
650edc6f
PH
240517. A "Completed" log line is now written for messages that are removed from
2406 the spool by the -Mrm option.
2407
2c7db3f5
PH
240818. New variables $sender_verify_failure and $recipient_verify_failure contain
2409 information about exactly what failed.
2410
3d235903
PH
241119. Added -dd to debug only the daemon process.
2412
7c7ad977
PH
241320. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2414 handles timeouts, both on the server side and network timeouts. Renamed the
2415 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2416
981756db
PH
241721. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2418 It is now set to "smtps".
2419
d4eb88df
PH
242022. $host_address is now set to the target address during the checking of
2421 ignore_target_hosts.
2422
242323. When checking ignore_target_hosts for an ipliteral router, no host name was
2424 being passed; this would have caused $sender_host_name to have been used if
2425 matching the list had actually called for a host name (not very likely,
2426 since this list is usually IP addresses). A host name is now passed as
2427 "[x.x.x.x]".
2428
7d468ab8
PH
242924. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2430 code that specifies a non-restarting handler (typically sigaction() in
2431 modern systems) in an attempt to fix a rare and obscure crash bug.
2432
243325. Narrowed the window for a race in the daemon that could cause it to ignore
2434 SIGCHLD signals. This is not a major problem, because they are used only to
2435 wake it up if nothing else does.
2436
62c0818f
PH
243726. A malformed maildirsize file could cause Exim to calculate negative values
2438 for the mailbox size or file count. Odd effects could occur as a result.
2439 The maildirsize information is now recalculated if the size or filecount
2440 end up negative.
2441
26034054
PH
244227. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2443 support for a long time. Removed HAVE_SYS_VFS_H.
2444
af66f652
PH
244528. Installed the latest version of exipick from John Jetmore.
2446
90af77f4
PH
244729. In an address list, if the pattern was not a regular expression, an empty
2448 subject address (from a bounce message) matched only if the pattern was an
2449 empty string. Non-empty patterns were not even tested. This was the wrong
2450 because it is perfectly reasonable to use an empty address as part of a
2451 database query. An empty address is now tested by patterns that are
2452 lookups. However, all the other forms of pattern expect the subject to
2453 contain a local part and a domain, and therefore, for them, an empty
2454 address still always fails if the pattern is not itself empty.
2455
d8ef3577
PH
245630. Exim went into a mad DNS loop when attempting to do a callout where the
2457 host was specified on an smtp transport, and looking it up yielded more
2458 than one IP address.
2459
5cb8cbc6
PH
246031. Re-factored the code for checking spool and log partition space into a
2461 function that finds that data and another that does the check. The former
2462 is then used to implement four new variables: $spool_space, $log_space,
2463 $spool_inodes, and $log_inodes.
2464
14702f5b
PH
246532. The RFC2047 encoding function was originally intended for short strings
2466 such as real names; it was not keeping to the 75-character limit for
2467 encoded words that the RFC imposes. It now respects the limit, and
2468 generates multiple encoded words if necessary. To be on the safe side, I
2469 have increased the buffer size for the ${rfc2047: expansion operator from
2470 1024 to 2048 bytes.
2471
063b1e99
PH
247233. It is now permitted to omit both strings after an "if" condition; if the
2473 condition is true, the result is "true". As before, when the second string
2474 is omitted, a false condition yields an empty string. This makes it less
2475 cumbersome to write custom ACL and router conditions.
2476
652e1b65
PH
247734. Failure to deliver a bounce message always caused it to be frozen, even if
2478 there was an errors_to setting on the router. The errors_to setting is now
2479 respected.
2480
6f0c9a4f
PH
248135. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2482 canonical form (fully expanded) before being placed in
2483 $sender_host_address.
2484
33397d19
PH
248536. The table in the code that translates DNS record types into text (T_A to
2486 "A" for instance) was missing entries for NS and CNAME. It is just possible
2487 that this could have caused confusion if both these types were looked up
2488 for the same domain, because the text type is used as part of Exim's
2489 per-process caching. But the chance of anyone hitting this buglet seems
2490 very small.
2491
7bb56e1f
PH
249237. The dnsdb lookup has been extended in a number of ways.
2493
2494 (1) There is a new type, "zns", which walks up the domain tree until it
2495 finds some nameserver records. It should be used with care.
2496
ea3bc19b
PH
2497 (2) There is a new type, "mxh", which is like "mx" except that it returns
2498 just the host names, not the priorities.
2499
2500 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2501 looked up. The behaviour when one of the lookups defers can be
2502 controlled by a keyword.
7bb56e1f 2503
ea3bc19b 2504 (4) It is now possible to specify the separator character for use when
7bb56e1f 2505 multiple records are returned.
33397d19 2506
0bcb2a0e
PH
250738. The dnslists ACL condition has been extended: it is now possible to supply
2508 a list of IP addresses and/or domains to be looked up in a particular DNS
2509 domain.
2510
2ac0e484
PH
251139. Added log_selector=+queue_time_overall.
2512
4e1fde53
PH
251340. When running the queue in the test harness, wait just a tad after forking a
2514 delivery process, to get repeatability of debugging output.
2515
de365ded
PH
251641. Include certificate and key file names in error message when GnuTLS fails
2517 to set them up, because the GnuTLS error message doesn't include the name
2518 of the failing file when there is a problem reading it.
2519
f05da2e8
PH
252042. Allow both -bf and -bF in the same test run.
2521
d6453af2
PH
252243. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2523
f7b63901
PH
252444. The "Exiscan patch" is now merged into the mainline Exim source.
2525
252645. Sometimes the final signoff response after QUIT could fail to get
2527 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2528 < 0 before doing a fflush(). This bug looks as though it goes back to the
2529 introduction of TLS in release 3.20, but "sometimes" must have been rare
2530 because the tests only now provoked it.
2531
a444213a
PH
253246. Reset the locale to "C" after calling embedded Perl, in case it was changed
2533 (this can affect the format of dates).
2534
0ec020ea
PH
253547. exim_tidydb, when checking for the continued existence of a message for
2536 which it has found a message-specific retry record, was not finding
2537 messages that were in split spool directories. Consequently, it was
2538 deleting retry records that should have stayed in existence.
2539
b1206957
PH
254048. Steve fixed some bugs in eximstats.
2541
254249. The SPA authentication driver was not abandoning authentication and moving
2543 on to the next authenticator when an expansion was forced to fail,
2544 contradicting the general specification for all authenticators. Instead it
2545 was generating a temporary error. It now behaves as specified.
2546
26dd5a95
PH
254750. The default ordering of permitted cipher suites for GnuTLS was pessimal
2548 (the order specifies the preference for clients). The order is now AES256,
2549 AES128, 3DES, ARCFOUR128.
2550
343b2385
PH
255151. Small patch to Sieve code - explicitly set From: when generating an
2552 autoreply.
2553
1c5466b9
PH
255452. Exim crashed if a remote delivery caused a very long error message to be
2555 recorded - for instance if somebody sent an entire SpamAssassin report back
2556 as a large number of 550 error lines. This bug was coincidentally fixed by
2557 increasing the size of one of Exim's internal buffers (big_buffer) that
2558 happened as part of the Exiscan merge. However, to be on the safe side, I
2559 have made the code more robust (and fixed the comments that describe what
2560 is going on).
2561
55ee9ee3
PH
256253. Now that there can be additional text after "Completed" in log lines (if
2563 the queue_time_overall log selector is set), a one-byte patch to exigrep
2564 was needed to allow it to recognize "Completed" as not the last thing in
2565 the line.
2566
d38f8232
PH
256754. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2568 patch that reportedly fixes this has been added. I am not expert enough to
2569 create a test for it. This is what the patch creator wrote:
2570
2571 "I found a little strange behaviour of ldap code when working with
2572 Windows 2003 AD Domain, where users was placed in more than one
2573 Organization Units. When I tried to give exim partial DN, the exit code
2574 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2575 But simultaneously result of request was absolutely normal ldap result,
2576 so I produce this patch..."
2577
3295e65b
PH
2578 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2579 REFERENCE, so I have modified the code to exclude the patch when that macro
2580 is not defined.
2581
7102e136
PH
258255. Some experimental protocols are using DNS PTR records for new purposes. The
2583 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2584 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2585 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2586 CAN-2005-0021
7102e136 2587
3ca0ba97
PH
258856. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2589
c2bcbe20
PH
259057. Double the size of the debug message buffer (to 2048) so that more of very
2591 long debug lines gets shown.
2592
18ce445d
PH
259358. The exicyclog utility now does better if the number of log files to keep
2594 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2595
1f5b4c3d
PH
259659. Two changes related to the smtp_active_hostname option:
2597
2598 (1) $smtp_active_hostname is now available as a variable.
2599 (2) The default for smtp_banner uses $smtp_active_hostname instead
2600 of $primary_hostname.
2601
b975ba52
PH
260260. The host_aton() function is supposed to be passed a string that is known
2603 to be a valid IP address. However, in the case of IPv6 addresses, it was
2604 not checking this. This is a hostage to fortune. Exim now panics and dies
2605 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2606 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2607 components; fortuitously, this particular loophole had already been fixed
2608 by change 4.50/55 above.
2609
2610 If there are any other similar loopholes, the new check in host_aton()
2611 itself should stop them being exploited. The report I received stated that
2612 data on the command line could provoke the exploit when Exim was running as
2613 exim, but did not say which command line option was involved. All I could
2614 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2615 running as the user.
ea3a6f44 2616 CAN-2005-0021
85b87bc2
PH
2617
261861. There was a buffer overflow vulnerability in the SPA authentication code
2619 (which came originally from the Samba project). I have added a test to the
2620 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2621 CAN-2005-0022
b975ba52 2622
17ffcae7
PH
262362. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2624 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2625
d95f9fdb
PH
262663. The daemon start-up calls getloadavg() while still root for those OS that
2627 need the first call to be done as root, but it missed one case: when
2628 deliver_queue_load_max is set with deliver_drop_privilege. This is
2629 necessary for the benefit of the queue runner, because there is no re-exec
2630 when deliver_drop_privilege is set.
2631
86b8287f
PH
263264. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2633 This has been fixed.
2634
60dc5e56
PH
263565. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2636 was in use, was not putting the data itself into the right store pool;
2637 consequently, it could be overwritten for a subsequent message in the same
2638 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2639 the caching.)
2640
533244af
PH
264166. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2642
a5a28604
PH
264367. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2644 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2645 the function were treating the return as a boolean value, which happened to
2646 work because 0=false and not-0=true, but is not correct code.
2647
7e634d24
PH
264868. The host_aton() function was not handling scoped IPv6 addresses (those
2649 with, for example, "%eth0" on the end) correctly.
2650
3e11c26b
PH
265169. Fixed some compiler warnings in acl.c for the bitmaps specified with
2652 negated items (that is, ~something) in unsigned ints. Some compilers
2653 apparently mutter when there is no cast.
2654
6729cf78
PH
265570. If an address verification called from an ACL failed, and did not produce a
2656 user-specific message (i.e. there was only a "system" message), nothing was
2657 put in $acl_verify_message. In this situation, it now puts the system
2658 message there.
2659
00f00ca5
PH
266071. Change 4.23/11 added synchronization checking at the start of an SMTP
2661 session; change 4.31/43 added the unwanted input to the log line - except
2662 that it did not do this in the start of session case. It now does.
2663
c9bdd01c
PH
266472. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2665 This is wrong and can cause the other end to generate a synchronization
2666 error if it is another Exim or anything else that does the synchronization
2667 check. A QUIT command is no longer sent after a timeout.
2668
d43194df
PH
266973. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2670 during host lookups.
2671
fe5b5d0b
PH
267274. The defer_ok option of callout verification was not working if it was used
2673 when verifying addresses in header lines, that is, for this case:
2674
2675 verify = header_sender/callout=defer_ok
2676
76a2d7ba
PH
267775. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2678 those file descriptors could be used for SMTP connections. If anything
2679 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2680 could be sent to the SMTP client, causing chaos. The daemon now opens
2681 stdin, stdout, and stderr to /dev/null when it puts itself into the
2682 background.
2683
268476. Arrange for output from Perl's "warn" command to be written to Exim's main
2685 log by default. The user can override this with suitable Perl magic.
2686
04f7d5b9
PH
268777. The use of log_message on a "discard" ACL verb, which is supposed to add to
2688 the log message when discard triggers, was not working for the DATA ACL or
2689 for the non-SMTP ACL.
2690
bc60667e
PH
269178. Error message wording change in sieve.c.
2692
bb6e88ff
PH
269379. If smtp_accept_max_per_host was set, the number of connections could be
2694 restricted to fewer than expected, because the daemon was trying to set up
2695 a new connection before checking whether the processes handling previous
2696 connections had finished. The check for completed processes is now done
2697 earlier. On busy systems, this bug wouldn't be noticed because something
2698 else would have woken the daemon, and it would have reaped the completed
2699 process earlier.
2700
1e70f85b
PH
270180. If a message was submitted locally by a user whose login name contained one
2702 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2703 It caused a spool format error. I have fixed the spool reading code. A
2704 related problem was that the "from" clause in the Received: line became
2705 illegal because of the space(s). It is now covered by ${quote_local_part.
2706
270781. Included the latest eximstats from Steve (adds average sizes to HTML Top
2708 tables).
2709
4e01f9d6
PH
271082. Updated OS/Makefile-AIX as per message from Mike Meredith.
2711
1ee1cef2
PH
271283. Patch from Sieve maintainer to fix unterminated string problem in
2713 "vacation" handling.
2714
6e2b4ccc
PH
271584. Some minor changes to the Linux configuration files to help with other
2716 OS variants using glibc.
2717
8e669ac1
PH
271885. One more patch for Sieve to update vacation handling to latest spec.
2719
495ae4b0 2720
bbe902f0
PH
2721----------------------------------------------------
2722See the note above about the 4.44 and 4.50 releases.
2723----------------------------------------------------
2724
2725
2726Exim version 4.44
2727-----------------
2728
2729 1. Change 4.43/35 introduced a bug that caused file counts to be
2730 incorrectly computed when quota_filecount was set in an appendfile
2731 transport
2732
2733 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2734 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2735 place.
2736
2737 3. Give more explanation in the error message when the command for a transport
2738 filter fails to execute.
2739
2740 4. There are several places where Exim runs a non-Exim command in a
2741 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2742 was being done only for the command run by the queryprogram router. It is
2743 now done for all such subprocesses. The other cases are: ${run, transport
2744 filters, and the commands run by the lmtp and pipe transports.
2745
2746 5. Some older OS have a limit of 256 on the maximum number of file
2747 descriptors. Exim was using setrlimit() to set 1000 as a large value
2748 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2749 systems. I've change it so that if it can't get 1000, it tries for 256.
2750
2751 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2752 was an oversight, and furthermore, ever since the addition of extra
2753 controls (e.g. 4.43/32), the checks on when to allow different forms of
2754 "control" were broken. There should now be diagnostics for all cases when a
2755 control that does not make sense is encountered.
2756
2757 7. $recipients is now available in the predata ACL (oversight).
2758
2759 8. Tidy the search cache before the fork to do a delivery from a message
2760 received from the command line. Otherwise the child will trigger a lookup
2761 failure and thereby defer the delivery if it tries to use (for example) a
2762 cached ldap connection that the parent has called unbind on.
2763
2764 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2765 of $address_data from the recipient verification was clobbered by the
2766 sender verification.
2767
276810. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2769 was its contents. (It was OK if the option was not defined at all.)
2770
277111. A "Completed" log line is now written for messages that are removed from
2772 the spool by the -Mrm option.
2773
277412. $host_address is now set to the target address during the checking of
2775 ignore_target_hosts.
2776
277713. When checking ignore_target_hosts for an ipliteral router, no host name was
2778 being passed; this would have caused $sender_host_name to have been used if
2779 matching the list had actually called for a host name (not very likely,
2780 since this list is usually IP addresses). A host name is now passed as
2781 "[x.x.x.x]".
2782
278314. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2784 code that specifies a non-restarting handler (typically sigaction() in
2785 modern systems) in an attempt to fix a rare and obscure crash bug.
2786
278715. Narrowed the window for a race in the daemon that could cause it to ignore
2788 SIGCHLD signals. This is not a major problem, because they are used only to
2789 wake it up if nothing else does.
2790
279116. A malformed maildirsize file could cause Exim to calculate negative values
2792 for the mailbox size or file count. Odd effects could occur as a result.
2793 The maildirsize information is now recalculated if the size or filecount
2794 end up negative.
2795
279617. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2797 support for a long time. Removed HAVE_SYS_VFS_H.
2798
ea3a6f44 279918. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2800
280119. Allow an empty sender to be matched against a lookup in an address list.
2802 Previously the only cases considered were a regular expression, or an
2803 empty pattern.
2804
280520. Exim went into a mad DNS lookup loop when doing a callout where the
2806 host was specified on the transport, if the DNS lookup yielded more than
2807 one IP address.
2808
ea3a6f44
NM
280921. The RFC2047 encoding function was originally intended for short strings
2810 such as real names; it was not keeping to the 75-character limit for
2811 encoded words that the RFC imposes. It now respects the limit, and
2812 generates multiple encoded words if necessary. To be on the safe side, I
2813 have increased the buffer size for the ${rfc2047: expansion operator from
2814 1024 to 2048 bytes.
bbe902f0 2815
ea3a6f44
NM
281622. Failure to deliver a bounce message always caused it to be frozen, even if
2817 there was an errors_to setting on the router. The errors_to setting is now
2818 respected.
bbe902f0
PH
2819
282023. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2821 canonical form (fully expanded) before being placed in
2822 $sender_host_address.
2823
282424. Updated eximstats to version 1.33
2825
ea3a6f44
NM
282625. Include certificate and key file names in error message when GnuTLS fails
2827 to set them up, because the GnuTLS error message doesn't include the name
2828 of the failing file when there is a problem reading it.
bbe902f0
PH
2829
283026. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2831 As per change 25.
bbe902f0 2832
ea3a6f44
NM
283327. Reset the locale to "C" after calling embedded Perl, in case it was changed
2834 (this can affect the format of dates).
bbe902f0 2835
ea3a6f44
NM
283628. exim_tidydb, when checking for the continued existence of a message for
2837 which it has found a message-specific retry record, was not finding
2838 messages that were in split spool directories. Consequently, it was
2839 deleting retry records that should have stayed in existence.
bbe902f0
PH
2840
284129. eximstats updated to version 1.35
2842 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2843 1.35 - bugfix such that pie charts by volume are generated correctly
2844
ea3a6f44
NM
284530. The SPA authentication driver was not abandoning authentication and moving
2846 on to the next authenticator when an expansion was forced to fail,
2847 contradicting the general specification for all authenticators. Instead it
2848 was generating a temporary error. It now behaves as specified.
bbe902f0 2849
ea3a6f44
NM
285031. The default ordering of permitted cipher suites for GnuTLS was pessimal
2851 (the order specifies the preference for clients). The order is now AES256,
2852 AES128, 3DES, ARCFOUR128.
bbe902f0 2853
ea3a6f44
NM
285431. Small patch to Sieve code - explicitly set From: when generating an
2855 autoreply.
bbe902f0 2856
ea3a6f44
NM
285732. Exim crashed if a remote delivery caused a very long error message to be
2858 recorded - for instance if somebody sent an entire SpamAssassin report back
2859 as a large number of 550 error lines. This bug was coincidentally fixed by
2860 increasing the size of one of Exim's internal buffers (big_buffer) that
2861 happened as part of the Exiscan merge. However, to be on the safe side, I
2862 have made the code more robust (and fixed the comments that describe what
2863 is going on).
bbe902f0 2864
ea3a6f44
NM
286533. Some experimental protocols are using DNS PTR records for new purposes. The
2866 keys for these records are domain names, not reversed IP addresses. The
2867 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2868 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2869 CAN-2005-0021
2870
ea3a6f44
NM
287134. The host_aton() function is supposed to be passed a string that is known
2872 to be a valid IP address. However, in the case of IPv6 addresses, it was
2873 not checking this. This is a hostage to fortune. Exim now panics and dies
2874 if the condition is not met. A case was found where this could be provoked
2875 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2876 components; fortuitously, this particular loophole had already been fixed
2877 by change 4.50/55 or 4.44/33 above.
2878
2879 If there are any other similar loopholes, the new check in host_aton()
2880 itself should stop them being exploited. The report I received stated that
2881 data on the command line could provoke the exploit when Exim was running as
2882 exim, but did not say which command line option was involved. All I could
2883 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2884 running as the user.
bbe902f0
PH
2885 CAN-2005-0021
2886
ea3a6f44
NM
288735. There was a buffer overflow vulnerability in the SPA authentication code
2888 (which came originally from the Samba project). I have added a test to the
2889 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2890 CAN-2005-0022
2891
ea3a6f44
NM
289236. The daemon start-up calls getloadavg() while still root for those OS that
2893 need the first call to be done as root, but it missed one case: when
2894 deliver_queue_load_max is set with deliver_drop_privilege. This is
2895 necessary for the benefit of the queue runner, because there is no re-exec
2896 when deliver_drop_privilege is set.
bbe902f0 2897
ea3a6f44
NM
289837. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2899 was in use, was not putting the data itself into the right store pool;
2900 consequently, it could be overwritten for a subsequent message in the same
2901 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2902 the caching.)
bbe902f0 2903
ea3a6f44
NM
290438. Sometimes the final signoff response after QUIT could fail to get
2905 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2906 < 0 before doing a fflush(). This bug looks as though it goes back to the
2907 introduction of TLS in release 3.20, but "sometimes" must have been rare
2908 because the tests only now provoked it.
bbe902f0
PH
2909
2910
495ae4b0
PH
2911Exim version 4.43
2912-----------------
2913
2914 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2915 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2916 Now it returns an integer. A number of calls were still expecting a T/F
2917 return. Fortuitously, in all cases, the tests worked in OK situations,
2918 which is the norm. However, things would have gone wrong on any write
2919 failures on the smtp file descriptor. This function is used when sending
2920 messages over SMTP and also when doing verify callouts.
2921
2922 2. When Exim is called to do synchronous delivery of a locally submitted
2923 message (the -odf or -odi options), it no longer closes stderr before doing
2924 the delivery.
2925
2926 3. Implemented the mua_wrapper option.
2927
2928 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2929
2930 5. Implemented the functions header_remove(), header_testname(),
2931 header_add_at_position(), and receive_remove_recipient(), and exported them
2932 to local_scan().
2933
2934 6. If an ACL "warn" statement specified the addition of headers, Exim already
2935 inserted X-ACL-Warn: at the start if there was no header name. However, it
2936 was not making this test for the second and subsequent header lines if
2937 there were newlines in the string. This meant that an invalid header could
2938 be inserted if Exim was badly configured.
2939
2940 7. Allow an ACL "warn" statement to add header lines at the start or after all
2941 the Received: headers, as well as at the end.
2942
2943 8. Added the rcpt_4xx retry error code.
2944
2945 9. Added postmaster_mailfrom=xxx to callout verification option.
2946
294710. Added mailfrom=xxxx to the callout verification option, for verify=
2948 header_sender only.
2949
295011. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2951 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2952
295312. Inserted some casts to stop certain compilers warning when using pointer
2954 differences as field lengths or precisions in printf-type calls (mostly
2955 affecting debugging statements).
2956
295713. Added optional readline() support for -be (dynamically loaded).
2958
295914. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2960 same clock tick as a message's arrival, so that its received time was the
2961 same as the "first fail" time on the retry record, and that message
2962 remained on the queue past the ultimate address timeout, every queue runner
2963 would try a delivery (because it was past the ultimate address timeout) but
2964 after another failure, the ultimate address timeout, which should have then
2965 bounced the address, did not kick in. This was a "< instead of <=" error;
2966 in most cases the first failure would have been in the next clock tick
2967 after the received time, and all would be well.
2968
296915. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2970 being recognized when the domain list was tested by the match_domain
2971 condition in an expansion string.
2972
297316. Added the ${str2b64: operator.
2974
297517. Exim was always calling setrlimit() to set a large limit for the number of
2976 processes, without checking whether the existing limit was already
2977 adequate. (It did check for the limit on file descriptors.) Furthermore,
2978 errors from getrlimit() and setrlimit() were being ignored. Now they are
2979 logged to the main and panic logs, but Exim does carry on, to try to do its
2980 job under whatever limits there are.
2981
298218. Imported PCRE 5.0.
2983
298419. Trivial typo in log message " temporarily refused connection" (the leading
2985 space).
2986
298720. If the log selector return_path_on_delivery was set and an address was
2988 redirected to /dev/null, the delivery process crashed because it assumed
2989 that a return path would always be set for a "successful" delivery. In this
2990 case, the whole delivery is bypassed as an optimization, and therefore no
2991 return path is set.
2992
299321. Internal re-arrangement: the function for sending a challenge and reading
2994 a response while authentication was assuming a zero-terminated challenge
2995 string. It's now changed to take a pointer and a length, to allow for
2996 binary data in such strings.
2997
299822. Added the cyrus_sasl authenticator (code supplied by MBM).
2999
300023. Exim was not respecting finduser_retries when seeking the login of the
3001 uid under which it was called; it was always trying 10 times. (The default
3002 setting of finduser_retries is zero.) Also, it was sleeping after the final
3003 failure, which is pointless.
3004
300524. Implemented tls_on_connect_ports.
3006
300725. Implemented acl_smtp_predata.
3008
300926. If the domain in control=submission is set empty, Exim assumes that the
3010 authenticated id is a complete email address when it generates From: or
3011 Sender: header lines.
3012
301327. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3014 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3015 chown and chgrp in /bin and hostname in /usr/bin.
3016
301728. Exim was keeping the "process log" file open after each use, just as it
3018 does for the main log. This opens the possibility of it remaining open for
3019 long periods when the USR1 signal hits a daemon. Occasional processlog
3020 errors were reported, that could have been caused by this. Anyway, it seems
3021 much more sensible not to leave this file open at all, so that is what now
3022 happens.
3023
302429. The long-running daemon process does not normally write to the log once it
3025 has entered its main loop, and it closes the log before doing so. This is
3026 so that log files can straightforwardly be renamed and moved. However,
3027 there are a couple of unusual error situations where the daemon does write
3028 log entries, and I had neglected to close the log afterwards.
3029
303030. The text of an SMTP error response that was received during a remote
3031 delivery was being truncated at 512 bytes. This is too short for some of
3032 the long messages that one sometimes sees. I've increased the limit to
3033 1024.
3034
303531. It is now possible to make retry rules that apply only when a message has a
3036 specific sender, in particular, an empty sender.
3037
303832. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3039 it possible to be selective about when SMTP synchronization is enforced.
3040
304133. Added "control = caseful_local_part" and "control = "caselower_local_part".
3042
304332. Implemented hosts_connection_nolog.
3044
304533. Added an ACL for QUIT.
3046
304734. Setting "delay_warning=" to disable warnings was not working; it gave a
3048 syntax error.
3049
305035. Added mailbox_size and mailbox_filecount to appendfile.
3051
305236. Added control = no_multiline_responses to ACLs.
3053
305437. There was a bug in the logic of the code that waits for the clock to tick
3055 in the case where the clock went backwards by a substantial amount such
3056 that the microsecond fraction of "now" was more than the microsecond
3057 fraction of "then" (but the whole seconds number was less).
3058
305938. Added support for the libradius Radius client library this is found on
3060 FreeBSD (previously only the radiusclient library was supported).
3061
3062
3063Exim version 4.42
3064-----------------
3065
3066 1. When certain lookups returned multiple values in the form name=value, the
3067 quoting of the values was not always being done properly. Specifically:
3068 (a) If the value started with a double quote, but contained no whitespace,
3069 it was not quoted.
3070 (b) If the value contained whitespace other than a space character (i.e.
3071 tabs or newlines or carriage returns) it was not quoted.
3072 This fix has been applied to the mysql and pgsql lookups by writing a
3073 separate quoting function and calling it from the lookup code. The fix
3074 should probably also be applied to nisplus, ibase and oracle lookups, but
3075 since I cannot test any of those, I have not disturbed their existing code.
3076
3077 2. A hit in the callout cache for a specific address caused a log line with no
3078 reason for rejecting RCPT. Now it says "Previous (cached) callout
3079 verification failure".
3080
3081 3. There was an off-by-one bug in the queryprogram router. An over-long
3082 return line was truncated at 256 instead of 255 characters, thereby
3083 overflowing its buffer with the terminating zero. As well as fixing this, I
3084 have increased the buffer size to 1024 (and made a note to document this).
3085
3086 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3087 when Exim is waiting for an SMTP response from a remote server, Exim
3088 restarts its select() call on the socket, thereby resetting its timeout.
3089 This is not a problem when such interrupts are rare. Somebody set up a cron
3090 job to run exiwhat every 2 minutes, which is less than the normal select()
3091 timeout (5 or 10 minutes). This meant that the select() timeout never
3092 kicked in because it was always reset. I have fixed this by comparing the
3093 time when an interrupt arrives with the time at the start of the first call
3094 to select(). If more time than the timeout has elapsed, the interrupt is
3095 treated as a timeout.
3096
3097 5. Some internal re-factoring in preparation for the addition of Sieve
3098 extensions (by MH). In particular, the "personal" test is moved to a
3099 separate function, and given an option for scanning Cc: and Bcc: (which is
3100 not set for Exim filters).
3101
3102 6. When Exim created an email address using the login of the caller as the
3103 local part (e.g. when creating a From: or Sender: header line), it was not
3104 quoting the local part when it contained special characters such as @.
3105
3106 7. Installed new OpenBSD configuration files.
3107
3108 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3109 try to make them clearer.
3110
3111 9. Callout options, other than the timeout value, were being ignored when
3112 verifying sender addresses in header lines. For example, when using
3113
3114 verify = header_sender/callout=no_cache
3115
3116 the cache was (incorrectly) being used.
3117
311810. Added a missing instance of ${EXE} to the exim_install script; this affects
3119 only the Cygwin environment.
3120
312111. When return_path_on_delivery was set as a log selector, if different remote
3122 addresses in the same message used different return paths and parallel
3123 remote delivery occurred, the wrong values would sometimes be logged.
3124 (Whenever a remote delivery process finished, the return path value from
3125 the most recently started remote delivery process was logged.)
3126
312712. RFC 3848 specifies standard names for the "with" phrase in Received: header
3128 lines when AUTH and/or TLS are in use. This is the "received protocol"
3129 field. Exim used to use "asmtp" for authenticated SMTP, without any
3130 indication (in the protocol name) for TLS use. Now it follows the RFC and
3131 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3132 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3133 names appear in log lines as well as in Received: header lines.
3134
313513. Installed MH's patches for Sieve to add the "copy" and "vacation"
3136 extensions, and comparison tests, and to fix some bugs.
3137
313814. Changes to the "personal" filter test:
3139
3140 (1) The test was buggy in that it was just doing the equivalent of
3141 "contains" tests on header lines. For example, if a user's address was
3142 anne@some.where, the "personal" test would incorrectly be true for
3143
3144 To: susanne@some.where
3145
3146 This test is now done by extracting each address from the header in turn,
3147 and checking the entire address. Other tests that are part of "personal"
3148 are now done using regular expressions (for example, to check local parts
3149 of addresses in From: header lines).
3150
3151 (2) The list of non-personal local parts in From: addresses has been
3152 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3153 taken from the Sieve specification recommendations.
3154
3155 (3) If the message contains any header line starting with "List-" it is
3156 treated as non-personal.
3157
3158 (4) The test for "circular" in the Subject: header line has been removed
3159 because it now seems ill-conceived.
3160
316115. Minor typos in src/EDITME comments corrected.
3162
316316. Installed latest exipick from John Jetmore.
3164
316517. If headers_add on a router specified a text string that was too long for
3166 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3167 of string_sprintf() is now avoided.
3168
316918. $message_body_size was not set (it was always zero) when running the DATA
3170 ACL and the local_scan() function.
3171
317219. For the "mail" command in an Exim filter, no default was being set for
3173 the once_repeat time, causing a random time value to be used if "once" was
3174 specified. (If the value happened to be <= 0, no repeat happened.) The
3175 default is now 0s, meaning "never repeat". The "vacation" command was OK
3176 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3177 (I found it when inspecting the code).
3178
317920. There is now an overall timeout for performing a callout verification. It
3180 defaults to 4 times the callout timeout, which applies to individual SMTP
3181 commands during the callout. The overall timeout applies when there is more
3182 than one host that can be tried. The timeout is checked before trying the
3183 next host. This prevents very long delays if there are a large number of
3184 hosts and all are timing out (e.g. when the network connections are timing
3185 out). The value of the overall timeout can be changed by specifying an
3186 additional sub-option for "callout", called "maxwait". For example:
3187
3188 verify = sender/callout=5s,maxwait=20s
3189
319021. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3191 to the end before writing, but this should make it even safer).
3192
319322. Exim was forgetting that it had advertised PIPELINING for the second and
3194 subsequent messages on an SMTP connection. It was also not resetting its
3195 memory on STARTTLS and an internal HELO.
3196
319723. When Exim logs an SMTP synchronization error within a session, it now
3198 records whether PIPELINING has been advertised or not.
3199
320024. Added 3 instances of "(long int)" casts to time_t variables that were being
3201 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3202 rather than long int.
3203
320425. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3205
320626. Added the never_mail option to autoreply.
3207
3208
3209Exim version 4.41
3210-----------------
3211
3212 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3213 crash if the getsockname() call failed; this can happen if a connection is
3214 closed very soon after it is established. The problem was simply in the
3215 order in which certain operations were done, causing Exim to try to write
3216 to the SMTP stream before it had set up the file descriptor. The bug has
3217 been fixed by making things happen in the correct order.
3218
3219
3220Exim version 4.40
3221-----------------
3222
3223 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3224 before the connection was closed, thus losing the rejection response.
3225
3226 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3227 some early Solaris releases, but causes trouble in current releases where
3228 socklen_t is defined.
3229
3230 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3231 always exist.
3232
3233 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3234 configured.
3235
3236 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3237 that releasing the top of it at the end releases what was used for sub-
3238 expansions (unless the block got too big). However, discard this block if
3239 the first thing is a variable or header, so that we can use its block when
3240 it is dynamic (useful for very large $message_headers, for example).
3241
3242 6. Lookups now cache *every* query, not just the most recent. A new, separate
3243 store pool is used for this. It can be recovered when all lookup caches are
3244 flushed. Lookups now release memory at the end of their result strings.
3245 This has involved some general refactoring of the lookup sources.
3246
3247 7. Some code has been added to the store_xxx() functions to reduce the amount
3248 of flapping under certain conditions.
3249
3250 8. log_incoming_interface used to affect only the <= reception log lines. Now
3251 it causes the local interface and port to be added to several more SMTP log
3252 lines, for example "SMTP connection from", and rejection lines.
3253
3254 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3255
325610. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3257
325811. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3259 could be overwritten at the end of the current message (or the start of a
3260 new message if it was set in a HELO ACL). The value is now preserved for
3261 the duration of the SMTP connection.
3262
326312. If a transport had a headers_rewrite setting, and a matching header line
3264 contained an unqualified address, that address was qualified, even if it
3265 did not match any rewriting rules. The underlying bug was that the values
3266 of the flags that permit the existence of unqualified sender and recipient
3267 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3268 non-local messages, and by -bnq for local messages) were not being
3269 preserved with the message after it was received.
3270
327113. When Exim was logging an SMTP synchronization error, it could sometimes log
3272 "next input=" as part of the text comprising the host identity instead of
3273 the correct text. The code was using the same buffer for two different
3274 strings. However, depending on which order the printing function evaluated
3275 its arguments, the bug did not always show up. Under Linux, for example, my
3276 test suite worked just fine.
3277
327814. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3279 doesn't work with some older versions of Perl. It has been changed to "my",
3280 which in any case is probably the better facility to use.
3281
328215. A really picky compiler found some instances of statements for creating
3283 error messages that either had too many or two few arguments for the format
3284 string.
3285
328616. The size of the buffer for calls to the DNS resolver has been increased
3287 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3288 for addresses that have a lot of PTR records. This alleviates a problem; it
3289 does not fully solve it.
3290
329117. A dnsdb lookup for PTR records that receives more data than will fit in the
3292 buffer now truncates the list and logs the incident, which is the same
3293 action as happens when Exim is looking up a host name and its aliases.
3294 Previously in this situation something unpredictable would happen;
3295 sometimes it was "internal error: store_reset failed".
3296
329718. If a server dropped the connection unexpectedly when an Exim client was
3298 using GnuTLS and trying to read a response, the client delivery process
3299 crashed while trying to generate an error log message.
3300
330119. If a "warn" verb in an ACL added multiple headers to a message in a single
3302 string, for example:
3303
3304 warn message = H1: something\nH2: something
3305
3306 the text was added as a single header line from Exim's point of view
3307 though it ended up OK in the delivered message. However, searching for the
3308 second and subsequent header lines using $h_h2: did not work. This has been
3309 fixed. Similarly, if a system filter added multiple headers in this way,
3310 the routers could not see them.
3311
331220. Expanded the error message when iplsearch is called with an invalid key to
3313 suggest using net-iplsearch in a host list.
3314
331521. When running tests using -bh, any delays imposed by "delay" modifiers in
3316 ACLs are no longer actually imposed (and a message to that effect is
3317 output).
3318
331922. If a "gecos" field in a passwd entry contained escaped characters, in
3320 particular, if it contained a \" sequence, Exim got it wrong when building
3321 a From: or a Sender: header from that name. A second bug also caused
3322 incorrect handling when an unquoted " was present following a character
3323 that needed quoting.
3324
332523. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3326 was not being matched caselessly.
3327
332824. Arranged for all hyphens in the exim.8 source to be escaped with
3329 backslashes.
3330
333125. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3332 properly. Recipient callout cache records were still being keyed to include
3333 the sender, even when use_sender was set false. This led to far more
3334 callouts that were necessary. The sender is no longer included in the key
3335 when use_sender is false.
3336
333726. Added "control = submission" modifier to ACLs.
3338
333927. Added the ${base62d: operator to decode base 62 numbers.
3340
334128. dnsdb lookups can now access SRV records.
3342
334329. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3344 the configuration file.
3345
334630. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3347 (-v) mode. This makes the output for a verbose queue run more intelligible.
3348
334931. Added a use_postmaster feature to recipient callouts.
3350
335132. Added the $body_zerocount variable, containing the number of binary zero
3352 bytes in the message body.
3353
335433. The time of last modification of the "new" subdirectory is now used as the
3355 "mailbox time last read" when there is a quota error for a maildir
3356 delivery.
3357
335834. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3359
336035. Added +ignore_unknown as a special item in host lists.
3361
336236. Code for decoding IPv6 addresses in host lists is now included, even if
3363 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3364 address was recognized as an IP address, but was then not correctly decoded
3365 into binary, causing unexpected and incorrect effects when compared with
3366 another IP address.
3367
3368
3369Exim version 4.34
3370-----------------
3371
3372 1. Very minor rewording of debugging text in manualroute to say "list of
3373 hosts" instead of "hostlist".
3374
3375 2. If verify=header_syntax was set, and a header line with an unqualified
3376 address (no domain) and a large number of spaces between the end of the
3377 name and the colon was received, the reception process suffered a buffer
3378 overflow, and (when I tested it) crashed. This was caused by some obsolete
3379 code that should have been removed. The fix is to remove it!
3380
3381 3. When running in the test harness, delay a bit after writing a bounce
3382 message to get a bit more predictability in the log output.
3383
3384 4. Added a call to search_tidyup() just before forking a reception process. In
3385 theory, someone could use a lookup in the expansion of smtp_accept_max_
3386 per_host which, without the tidyup, could leave open a database connection.
3387
3388 5. Added the variables $recipient_data and $sender_data which get set from a
3389 lookup success in an ACL "recipients" or "senders" condition, or a router
3390 "senders" option, similar to $domain_data and $local_part_data.
3391
3392 6. Moved the writing of debug_print from before to after the "senders" test
3393 for routers.
3394
3395 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3396 problems for message scanning, either using a data ACL, or using
3397 local_scan() because the Received: header was not generated till after they
3398 were called (in order to set the time as the time of reception completion).
3399 I have revised the way this works. The header is now generated after the
3400 body is received, but before the ACL or local_scan() are called. After they
3401 are run, the timestamp in the header is updated.
3402
3403
3404Exim version 4.33
3405-----------------
3406
3407 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3408 before starting a queue runner without re-exec. This happened only when
3409 deliver_drop_privilege was set or when the Exim user was set to root. The
3410 effect of the bug was that timeouts during subsequent deliveries caused
3411 crashes instead of being properly handled. The handler is now left at its
3412 default (and expected) setting.
3413
3414 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3415 message, again when deliver_drop_privilege is set or Exim is run as root.
3416 The bug described in (1) was not present in this case, but the tidying up
3417 of the other signals was missing. I have made the two cases consistent.
3418
3419 3. The ignore_target_hosts setting on a manualroute router was being ignored
3420 for hosts that were looked up using the /MX notation.
3421
3422 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3423 in domain lists.
3424
3425 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3426 operated on the sender address. After changing the $sender_address to <>
3427 for the sender address verify, Exim was re-instated it as the original
3428 (before rewriting) address, but remembering that it had rewritten it, so it
3429 wasn't rewriting it again. This bug also had the effect of breaking the
3430 sender address verification caching when the sender address was rewritten.
3431
3432 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3433 This has been changed so that if the ip literal address matches
3434 ignore_target_hosts, the router declines.
3435
3436 7. Added expansion conditions match_domain, match_address, and match_local_
3437 part (NOT match_host).
3438
3439 8. The placeholder for the Received: header didn't have a length field set.
3440
3441 9. Added code to Exim itself and to exim_lock to test for a specific race
3442 condition that could lead to file corruption when using MBX delivery. The
3443 issue is with the lockfile that is created in /tmp. If this file is removed
3444 after a process has opened it but before that process has acquired a lock,
3445 there is the potential for a second process to recreate the file and also
3446 acquire a lock. This could lead to two Exim processes writing to the file
3447 at the same time. The added code performs the same test as UW imapd; it
3448 checks after acquiring the lock that its file descriptor still refers to
3449 the same named file.
3450
345110. The buffer for building added header lines was of fixed size, 8192 bytes.
3452 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3453 when Exim is built.
3454
345511. Added the smtp_active_hostname option. If used, this will typically be made
3456 to depend on the incoming interface address. Because $interface_address is
3457 not set up until the daemon has forked a reception process, error responses
3458 that can happen earlier (such as "too many connections") no longer contain
3459 a host name.
3460
346112. If an expansion in a condition on a "warn" statement fails because a lookup
3462 defers, the "warn" statement is abandoned, and the next ACL statement is
3463 processed. Previously this caused the whole ACL to be aborted.
3464
346513. Added the iplsearch lookup type.
3466
346714. Added ident_timeout as a log selector.
3468
346915. Added tls_certificate_verified as a log selector.
3470
347116. Added a global option tls_require_ciphers (compare the smtp transport
3472 option of the same name). This controls incoming TLS connections.
3473
347417. I finally figured out how to make tls_require_ciphers do a similar thing
3475 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3476 before starting the TLS session.
3477
347818. Tabs are now shown as \t in -bP output.
3479
348019. If the log selector return_path_on_delivery was set, Exim crashed when
3481 bouncing a message because it had too many Received: header lines.
3482
348320. If two routers both had headers_remove settings, and the first one included
3484 a superfluous trailing colon, the final name in the first list and the
3485 first name in the second list were incorrectly joined into one item (with a
3486 colon in the middle).
3487
3488
3489Exim version 4.32
3490-----------------
3491
3492 1. Added -C and -D options to the exinext utility, mainly to make it easier
3493 to include in the automated testing, but these could be helpful when
3494 multiple configurations are in use.
3495
3496 2. The exinext utility was not formatting the output nicely when there was
3497 an alternate port involved in the retry record key, nor when there was a
3498 message id as well (for retries that were specific to a specific message
3499 and a specific host). It was also confused by IPv6 addresses, because of
3500 the additional colons they contain. I have fixed the IPv4 problem, and
3501 patched it up to do a reasonable job for IPv6.
3502
3503 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3504 delivery, the log line now contains "pipelined" if PIPELINING was used.
3505
3506 4. An SMTP transport process used to panic and die if the bind() call to set
3507 an explicit outgoing interface failed. This has been changed; it is now
3508 treated in the same way as a connect() failure.
3509
3510 5. A reference to $sender_host_name in the part of a conditional expansion
3511 that was being skipped was still causing a DNS lookup. This no longer
3512 occurs.
3513
3514 6. The def: expansion condition was not recognizing references to header lines
3515 that used bh_ and bheader_.
3516
3517 7. Added the _cache feature to named lists.
3518
3519 8. The code for checking quota_filecount in the appendfile transport was
3520 allowing one more file than it should have been.
3521
3522 9. For compatibility with Sendmail, the command line option
3523
3524 -prval:sval
3525
3526 is equivalent to
3527
3528 -oMr rval -oMs sval
3529
3530 and sets the incoming protocol and host name (for trusted callers). The
3531 host name and its colon can be omitted when only the protocol is to be set.
3532 Note the Exim already has two private options, -pd and -ps, that refer to
3533 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3534 "s", but I don't think that's a major issue.
3535
353610. A number of refactoring changes to the code, none of which should affect
3537 Exim's behaviour:
3538
3539 (a) The number of logging options was getting close to filling up the