Bugzilla #890
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
8f3414a1 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.565 2009/07/02 11:44:01 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
9b989985
NM
94NM/14 Bugzilla 614: Added timeout setting to transport filter.
95 Patch provided by Dean Brooks
96
0b23848a
TK
97TK/05 Add native DKIM support (does not depend on external libraries).
98
8f3414a1 99NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
NM
100 Patch provided by Graeme Fowler
101
8f3414a1
NM
102NM/15 Bugzilla 851: Documentation example syntax fix.
103
deafd5b3 104
47db1125
NM
105Exim version 4.69
106-----------------
107
4b3504d0
TK
108TK/01 Add preliminary DKIM support. Currently requires a forked version of
109 ALT-N's libdkim that I have put here:
110 http://duncanthrax.net/exim-experimental/
111
112 Note to Michael Haardt: I had to rename some vars in sieve.c. They
113 were called 'true' and it seems that C99 defines that as a reserved
114 keyword to be used with 'bool' variable types. That means you could
115 not include C99-style headers which use bools without triggering
116 build errors in sieve.c.
117
81ea09ca
NM
118NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
119 as mailq or other aliases. Changed the --help handling significantly
120 to do whats expected. exim_usage() emits usage/help information.
121
f13cddcb
SC
122SC/01 Added the -bylocaldomain option to eximstats.
123
8ad076b2
NM
124NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
125
a843aaa6
NM
126NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
127
47db1125
NM
128NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
129
130
eb4c0de6
PH
131Exim version 4.68
132-----------------
133
134PH/01 Another patch from the Sieve maintainer.
135
6a3bceb1
PH
136PH/02 When an IPv6 address is converted to a string for single-key lookup
137 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
138 dots are used instead of colons so that keys in lsearch files need not
139 contain colons. This was done some time before quoting was made available
140 in lsearch files. However, iplsearch files do require colons in IPv6 keys
141 (notated using the quote facility) so as to distinguish them from IPv4
142 keys. This meant that lookups for IP addresses in host lists did not work
143 for iplsearch lookups.
144
145 This has been fixed by arranging for IPv6 addresses to be expressed with
146 colons if the lookup type is iplsearch. This is not incompatible, because
147 previously such lookups could never work.
148
149 The situation is now rather anomolous, since one *can* have colons in
150 ordinary lsearch keys. However, making the change in all cases is
151 incompatible and would probably break a number of configurations.
152
2e30fa9d
TK
153TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
154 version.
155
0806a9c5
MH
156MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
157 conversion specification without a maximum field width, thereby enabling
158 a rogue spamd server to cause a buffer overflow. While nobody in their
159 right mind would setup Exim to query an untrusted spamd server, an
160 attacker that gains access to a server running spamd could potentially
161 exploit this vulnerability to run arbitrary code as the Exim user.
162
ae276964
TK
163TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
164 $primary_hostname instead of what libspf2 thinks the hosts name is.
165
0f2cbd1b
MH
166MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
167 a directory entry by the name of the lookup key. Previously, if a
168 symlink pointed to a non-existing file or a file in a directory that
169 Exim lacked permissions to read, a lookup for a key matching that
170 symlink would fail. Now it is enough that a matching directory entry
171 exists, symlink or not. (Bugzilla 503.)
172
2b85bce7
PH
173PH/03 The body_linecount and body_zerocount variables are now exported in the
174 local_scan API.
175
93655c46
PH
176PH/04 Added the $dnslist_matched variable.
177
6c512171
PH
178PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
179 This means they are set thereafter only if the connection becomes
180 encrypted.
181
182PH/06 Added the client_condition to authenticators so that some can be skipped
183 by clients under certain conditions.
184
aa6dc513
PH
185PH/07 The error message for a badly-placed control=no_multiline_responses left
186 "_responses" off the end of the name.
187
a96603a0
PH
188PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
189
8f240103
PH
190PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
191 (without spaces) instead of just copying the configuration text.
192
193PH/10 Added the /noupdate option to the ratelimit ACL condition.
194
d677b2f2
PH
195PH/11 Added $max_received_linelength.
196
d52120f2
PH
197PH/12 Added +ignore_defer and +include_defer to host lists.
198
64f2600a
PH
199PH/13 Installed PCRE version 7.2. This needed some changes because of the new
200 way in which PCRE > 7.0 is built.
201
8669f003
PH
202PH/14 Implemented queue_only_load_latch.
203
a4dc33a8
PH
204PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
205 MAIL command. The effect was to mangle the value on 64-bit systems.
206
d6a60c0f
PH
207PH/16 Another patch from the Sieve maintainer.
208
8f128379
PH
209PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
210
8932dffe
PH
211PH/18 If a system quota error occurred while trying to create the file for
212 a maildir delivery, the message "Mailbox is full" was not appended to the
213 bounce if the delivery eventually timed out. Change 4.67/27 below applied
214 only to a quota excession during the actual writing of the file.
d6a60c0f 215
ddea74fa 216PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
217 characters?) which causes problems in log lines. The DN values are now
218 passed through string_printing() before being added to log lines.
219
ddea74fa 220PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
221 and InterBase are left for another time.)
222
ddea74fa
PH
223PH/21 Added message_body_newlines option.
224
ce9f225c
PH
225PH/22 Guard against possible overflow in moan_check_errorcopy().
226
19897d52
PH
227PH/23 POSIX allows open() to be a macro; guard against that.
228
bc64a74d
PH
229PH/24 If the recipient of an error message contained an @ in the local part
230 (suitably quoted, of course), incorrect values were put in $domain and
231 $local_part during the evaluation of errors_copy.
232
eb4c0de6 233
b4ed4da0
PH
234Exim version 4.67
235-----------------
236
22ad45c9
MH
237MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
238 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
239 Jan Srzednicki.
240
b4ed4da0
PH
241PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
242 issue a MAIL command.
243
431b7361
PH
244PH/02 In an ACL statement such as
245
246 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
247
248 if a client was not listed at all, or was listed with a value other than
249 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
250 the condition was not true (as it should be), so access was not denied.
251 The bug was that the ! inversion was incorrectly passed on to the second
252 item. This has been fixed.
253
254PH/03 Added additional dnslists conditions == and =& which are different from
255 = and & when the dns lookup returns more than one IP address.
256
83da1223
PH
257PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
258 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
259
54fc8428
PH
260PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
261 FSYNC, which compiles an option called disable_fsync that allows for
262 bypassing fsync(). The documentation is heavily laced with warnings.
263
34c5e8dd
SC
264SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
265
bbe15da8
PH
266PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
267 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
268 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
269 including adding "make clean"; (3) Added -fPIC when compiling the test
270 dynamically loaded module, to get rid of a warning.
271
0e8a9471
MH
272MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
273 message fails, move_frozen_messages = true and ignore_bounce_errors_after
274 = 0s. The bug is otherwise harmless.
275
f0872424
PH
276PH/07 There was a bug in the dovecot authenticator such that the value of
277 $auth1 could be overwritten, and so not correctly preserved, after a
278 successful authentication. This usually meant that the value preserved by
279 the server_setid option was incorrect.
280
b01dd148
PH
281PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
282
6bf342e1
PH
283PH/09 Installed PCRE release 7.0.
284
273f34d0
PH
285PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
286 run for batched SMTP input. It is now run at the start of every message
287 in the batch. While fixing this I discovered that the process information
288 (output by running exiwhat) was not always getting set for -bs and -bS
289 input. This is fixed, and it now also says "batched" for BSMTP.
290
cf8b11a5
PH
291PH/11 Added control=no_pipelining.
292
41c7c167
PH
293PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
294 patch, slightly modified), and move the expansion of helo_data till after
295 the connection is made in the smtp transport (so it can use these
296 values).
297
9c57cbc0
PH
298PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
299
f3f065bb
PH
300PH/14 Added log_selector = +pid.
301
047bdd8c
PH
302PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
303
0ce9abe6
PH
304PH/16 Add ${if forany and ${if forall.
305
0e22dfd1
PH
306PH/17 Added dsn_from option to vary the From: line in DSNs.
307
4c590bd1
PH
308PH/18 Flush SMTP output before performing a callout, unless control =
309 no_callout_flush is set.
310
09945f1e
PH
311PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
312 was true (the default) a successful delivery failed to delete the retry
313 item, thus causing premature timeout of the address. The bug is now
314 fixed.
315
c51b8e75
PH
316PH/20 Added hosts_avoid_pipelining to the smtp transport.
317
e28326d8
PH
318PH/21 Long custom messages for fakedefer and fakereject are now split up
319 into multiline reponses in the same way that messages for "deny" and
320 other ACL rejections are.
321
75b1493f
PH
322PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
323 with slight modification.
324
7c5214ec
PH
325PH/23 Applied sieve patches from the maintainer "tracking the latest notify
326 draft, changing the syntax and factoring some duplicate code".
327
4311097e
PH
328PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
329 for deliveries of the second and subsequent messages over the same SMTP
330 connection.
331
29f89cad
PH
332PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
333 ${reduce, with only minor "tidies".
334
5e687460
SC
335SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
336
c3611384
PH
337PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
338 expansion side effects.
339
5a11a7b4
PH
340PH/27 When a message times out after an over-quota error from an Exim-imposed
341 quota, the bounce message says "mailbox is full". This message was not
342 being given when it was a system quota that was exceeded. It now should
343 be the same.
344
0e20aff9
MH
345MH/03 Made $recipients available in local_scan(). local_scan() already has
346 better access to the recipient list through recipients_list[], but
347 $recipients can be useful in postmaster-provided expansion strings.
348
ca86f471
PH
349PH/28 The $smtp_command and $smtp_command_argument variables were not correct
350 in the case of a MAIL command with additional options following the
351 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
352 were accidentally chopped off.
353
a14e5636
PH
354PH/29 SMTP synchronization checks are implemented when a command is read -
355 there is a check that no more input is waiting when there shouldn't be
356 any. However, for some commands, a delay in an ACL can mean that it is
357 some time before the response is written. In this time, more input might
358 arrive, invalidly. So now there are extra checks after an ACL has run for
359 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
360 pipelining has not been advertised.
361
ec95d1a6
PH
362PH/30 MH's patch to allow iscntrl() characters to be list separators.
363
42855d71
PH
364PH/31 Unlike :fail:, a custom message specified with :defer: was not being
365 returned in the SMTP response when smtp_return_error_details was false.
366 This has been fixed.
367
57c2c631
PH
368PH/32 Change the Dovecot authenticator to use read() and write() on the socket
369 instead of the C I/O that was originally supplied, because problems were
370 reported on Solaris.
371
58c01c94
PH
372PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
373 Exim which did not show up earlier: it was assuming that a call to
374 SSL_CTX_set_info_callback() might give an error value. In fact, there is
375 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
376 was a macro that became an assignment, so it seemed to work. This has
377 changed to a proper function call with a void return, hence the compile
378 error. Exim's code has been fixed.
379
dee5a20a
PH
380PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
381 cpus.
382
d2ee6114
PH
383PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
384
b2d5182b
PH
385PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
386
79749a79
PH
387PH/37 If a message is not accepted after it has had an id assigned (e.g.
388 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
389 "Completed" line in the log. When some messages of this type were
390 selected by exigrep, they were listed as "not completed". Others were
391 picked up by some special patterns. I have improved the selection
392 criteria to be more general.
79749a79 393
c456d9bb
PH
394PH/38 The host_find_failed option in the manualroute router can now be set
395 to "ignore", to completely ignore a host whose IP address cannot be
396 found. If all hosts are ignored, the behaviour is controlled by the new
397 host_all_ignored option.
398
cd9868ec
PH
399PH/39 In a list of hosts for manualroute, if one item (either because of multi-
400 homing or because of multiple MX records with /mx) generated more than
401 one IP address, and the following item turned out to be the local host,
402 all the secondary addresses of the first item were incorrectly removed
403 from the list, along with the local host and any following hosts (which
404 is what is supposed to happen).
405
ebeaf996
PH
406PH/40 When Exim receives a message, it writes the login name, uid, and gid of
407 whoever called Exim into the -H file. In the case of the daemon it was
408 behaving confusingly. When first started, it used values for whoever
409 started the daemon, but after a SIGHUP it used the Exim user (because it
410 calls itself on a restart). I have changed the code so that it now always
411 uses the Exim user.
412
2679d413
PH
413PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
414 message are rejected with the same error (e.g. no authentication or bad
415 sender address), and a DATA command is nevertheless sent (as can happen
416 with PIPELINING or a stupid MUA), the error message that was given to the
417 RCPT commands is included in the rejection of the DATA command. This is
418 intended to be helpful for MUAs that show only the final error to their
419 users.
420
84024b72
PH
421PH/42 Another patch from the Sieve maintainer.
422
8005d38e
SC
423SC/02 Eximstats - Differentiate between permanent and temporary rejects.
424 Eximstats - Fixed some broken HTML links and added missing column headers
425 (Jez Hancock).
426 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
427 columns for Rejects, Temp Rejects, Ham, and Spam rows.
428
3298c6c6
SC
429SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
430
a43a27c5
PH
431PH/43 Yet another patch from the Sieve maintainer.
432
58eb016e 433PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
434 the response to the final '.' that terminates a message, but only in the
435 case where the client has not sent further data following the '.'
436 (unfortunately, this is allowed). However, in many cases there won't be
437 any further data because there won't be any more messages to send. A call
438 to select() can be used: if it shows that the input is "ready", there is
439 either input waiting, or the socket has been closed. An attempt to read
440 the next input character can distinguish the two cases. Previously, Exim
58eb016e 441 would have sent an OK response which the client would never have see.
563b63fa
PH
442 This could lead to message repetition. This fix should cure that, at
443 least in a lot of common cases.
58eb016e 444
b43a74ea
PH
445PH/45 Do not advertise STARTTLS in response to HELP unless it would be
446 advertised in response to EHLO.
447
b4ed4da0 448
5dd1517f
PH
449Exim version 4.66
450-----------------
451
452PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
453 fixed by 4.65/MH/01 (is this a record?) are fixed:
454
455 (i) An empty string was always treated as zero by the numeric comparison
456 operators. This behaviour has been restored.
457
458 (ii) It is documented that the numeric comparison operators always treat
459 their arguments as decimal numbers. This was broken in that numbers
460 starting with 0 were being interpreted as octal.
461
462 While fixing these problems I realized that there was another issue that
463 hadn't been noticed. Values of message_size_limit (both the global option
464 and the transport option) were treated as octal if they started with 0.
465 The documentation was vague. These values are now always treated as
466 decimal, and I will make that clear in the documentation.
467
468
93cfa765
TK
469Exim version 4.65
470-----------------
471
472TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
473 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
474 versions. (#438)
475
d6066548
MH
476MH/01 Don't check that the operands of numeric comparison operators are
477 integers when their expansion is in "skipping" mode (fixes bug
478 introduced by 4.64-PH/07).
479
4362ff0d
PH
480PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
481 child addresses, Exim now panics and dies. Previously, because the count
482 is held in a short int, deliveries were likely to be lost. As such a
483 large number of recipients for a single message is ridiculous
484 (performance will be very, very poor), I have chosen to impose a limit
485 rather than extend the field.
486
93cfa765 487
944e9e9c
TF
488Exim version 4.64
489-----------------
aa41d2de 490
21d74bd9
TK
491TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
492 leftover -K file (the existence of which was triggered by #402).
493 While we were at it, introduced process PID as part of the -K
494 filename. This should rule out race conditions when creating
495 these files.
496
497TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
498 processing considerably. Previous code took too long for large mails,
499 triggering a timeout which in turn triggers #401.
500
501TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
502 in the DK code in transports.c. sendfile() is not really portable,
503 hence the _LINUX specificness.
944e9e9c
TF
504
505TF/01 In the add_headers option to the mail command in an Exim filter,
506 there was a bug that Exim would claim a syntax error in any
507 header after the first one which had an odd number of characters
508 in the field name.
509
2b1c6e3a
PH
510PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
511 callout verification, Exim cached a "reject" for the entire domain. This
512 is correct for most verifications, but it is not correct for a recipient
513 verification with use_sender or use_postmaster set, because in that case
514 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
515 case of MAIL FROM:<> rejection from other early rejections (e.g.
516 rejection of HELO). When verifying a recipient using a non-null MAIL
517 address, the cache is ignored if it shows MAIL FROM:<> rejection.
518 Whatever the result of the callout, the value of the domain cache is
519 left unchanged (for any other kind of callout, getting as far as trying
520 RCPT means that the domain itself is ok).
521
1f872c80
PH
522PH/02 Tidied a number of unused variable and signed/unsigned warnings that
523 gcc 4.1.1 threw up.
524
525PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
526 manifest itself as EPIPE rather than ECONNECT. When tidying away a
527 session, the daemon ignores ECONNECT errors and logs others; it now
528 ignores EPIPE as well.
529
d203e649
PH
530PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
531 (quoted-printable decoding).
532
cc2ed8f7 533PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 534 later the small subsequent patch to fix an introduced bug.
f951fd57 535
ddfcd446
PH
536PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
537
d45b1de8
PH
538PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
539
540PH/08 An error is now given if message_size_limit is specified negative.
541
38a0a95f 542PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 543 to be given (somewhat) arbitrary names.
38a0a95f 544
a2405d83
JJ
545JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
546 in 4.64-PH/09.
547
548JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
549 miscellaneous code fixes
550
6ea85e9a
PH
551PH/10 Added the log_reject_target ACL modifier to specify where to log
552 rejections.
553
26da7e20
PH
554PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
555 hostname. This is wrong, because it relates to the incoming message (and
556 probably the interface on which it is arriving) and not to the outgoing
557 callout (which could be using a different interface). This has been
558 changed to use the value of the helo_data option from the smtp transport
559 instead - this is what is used when a message is actually being sent. If
560 there is no remote transport (possible with a router that sets up host
561 addresses), $smtp_active_hostname is used.
6ea85e9a 562
14aa5a05 563PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 564 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
565 (a) The code assumed that strncpy() returns a negative number on buffer
566 overflow, which isn't the case. Replaced with Exim's string_format()
567 function.
568 (b) There were several signed/unsigned issues. I just did the minimum
569 hacking in of casts. There is scope for a larger refactoring.
570 (c) The code used strcasecmp() which is not a standard C function.
571 Replaced with Exim's strcmpic() function.
572 (d) The code set only $1; it now sets $auth1 as well.
573 (e) A simple test gave the error "authentication client didn't specify
574 service in request". It would seem that Dovecot has changed its
575 interface. Fortunately there's a specification; I followed it and
576 changed what the client sends and it appears to be working now.
577
ff75a1f7
PH
578PH/13 Added $message_headers_raw to provide the headers without RFC 2047
579 decoding.
580
e6f6568e
PH
581PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
582 address A is aliased to B and C, where B exists and C does not. Without
583 -v the output is "A verified" because verification stops after a
584 successful redirection if more than one address is generated. However,
585 with -v the child addresses are also verified. Exim was outputting "A
586 failed to verify" and then showing the successful verification for C,
587 with its parentage. It now outputs "B failed to verify", showing B's
588 parentage before showing the successful verification of C.
589
d6f6e0dc
PH
590PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
591 look up a TXT record in a specific list after matching in a combined
592 list.
593
322050c2
PH
594PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
595 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
596 they consult the DNS. I had assumed they would set it the way they
597 wanted; and indeed my experiments on Linux seem to show that in some
598 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
599 To be on the safe side, however, I have now made the interface to
600 host_find_byname() similar to host_find_bydns(), with an argument
601 containing the DNS resolver options. The host_find_byname() function now
602 sets these options at its start, just as host_find_bydns() does. The smtp
603 transport options dns_qualify_single and dns_search_parents are passed to
604 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
605 of host_find_byname() use the default settings of RES_DEFNAMES
606 (qualify_single) but not RES_DNSRCH (search_parents).
607
08955dd3
PH
608PH/17 Applied (a modified version of) Nico Erfurth's patch to make
609 spool_read_header() do less string testing, by means of a preliminary
610 switch on the second character of optional "-foo" lines. (This is
611 overdue, caused by the large number of possibilities that now exist.
612 Originally there were few.) While I was there, I also converted the
613 str(n)cmp tests so they don't re-test the leading "-" and the first
614 character, in the hope this might squeeze out yet more improvement.
615
1eccaa59
PH
616PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
617 flag allowing group syntax was set by the header_syntax check but not
618 turned off, possible causing trouble later; (2) The flag was not being
619 set at all for the header_verify test, causing "group"-style headers to
620 be rejected. I have now set it in this case, and also caused header_
621 verify to ignore an empty address taken from a group. While doing this, I
622 came across some other cases where the code for allowing group syntax
623 while scanning a header line wasn't quite right (mostly, not resetting
624 the flag correctly in the right place). These bugs could have caused
625 trouble for malformed header lines. I hope it is now all correct.
626
602e59e5
PH
627PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
628 with the "reply" argument non-NULL. The code, however (which originally
629 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
630 but it didn't always do it. This confused somebody who was copying the
631 code for some other use. I have removed all the tests.
632
411ef850
PH
633PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
634 feature that was used to support insecure browsers during the U.S. crypto
635 embargo. It requires special client support, and Exim is probably the
636 only MTA that supported it -- and would never use it because real RSA is
637 always available. This code has been removed, because it had the bad
638 effect of slowing Exim down by computing (never used) parameters for the
639 RSA_EXPORT functionality.
640
7befa435
PH
641PH/21 On the advice of Timo Sirainen, added a check to the dovecot
642 authenticator to fail if there's a tab character in the incoming data
643 (there should never be unless someone is messing about, as it's supposed
644 to be base64-encoded). Also added, on Timo's advice, the "secured" option
645 if the connection is using TLS or if the remote IP is the same as the
646 local IP, and the "valid-client-cert option" if a client certificate has
647 been verified.
648
48da4259 649PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
650 authenticators. This can be used for authorization after authentication
651 succeeds. (In the case of plaintext, it servers for both authentication
652 and authorization.)
653
48da4259
PH
654PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
655 if any retry times were supplied.
656
d1d5595c
PH
657PH/24 Exim crashed if verify=helo was activated during an incoming -bs
658 connection, where there is no client IP address to check. In this
659 situation, the verify now always succeeds.
660
0ef732d9
PH
661PH/25 Applied John Jetmore's -Mset patch.
662
328895cc
PH
663PH/26 Added -bem to be like -Mset, but loading a message from a file.
664
fd700877
PH
665PH/27 In a string expansion for a processed (not raw) header when multiple
666 headers of the same name were present, leading whitespace was being
667 removed from all of them, but trailing whitespace was being removed only
668 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
669 before concatenation. Completely empty headers in a concatenation (as
670 before) are ignored.
fd700877 671
8dce1a6f
PH
672PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
673 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
674
17af4a17
PH
675PH/29 [Removed. This was a change that I later backed out, and forgot to
676 correct the ChangeLog entry (that I had efficiently created) before
677 committing the later change.]
f6c332bd
PH
678
679PH/30 Exim was sometimes attempting to deliver messages that had suffered
680 address errors (4xx response to RCPT) over the same connection as other
681 messages routed to the same hosts. Such deliveries are always "forced",
682 so retry times are not inspected. This resulted in far too many retries
683 for the affected addresses. The effect occurred only when there were more
684 hosts than the hosts_max_try setting in the smtp transport when it had
685 the 4xx errors. Those hosts that it had tried were not added to the list
686 of hosts for which the message was waiting, so if all were tried, there
687 was no problem. Two fixes have been applied:
688
689 (i) If there are any address or message errors in an SMTP delivery, none
690 of the hosts (tried or untried) are now added to the list of hosts
691 for which the message is waiting, so the message should not be a
692 candidate for sending over the same connection that was used for a
693 successful delivery of some other message. This seems entirely
694 reasonable: after all the message is NOT "waiting for some host".
695 This is so "obvious" that I'm not sure why it wasn't done
696 previously. Hope I haven't missed anything, but it can't do any
697 harm, as the worst effect is to miss an optimization.
698
699 (ii) If, despite (i), such a delivery is accidentally attempted, the
700 routing retry time is respected, so at least it doesn't keep
701 hammering the server.
702
c1114884
PH
703PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
704 in ${readsocket because some servers need this prod.
705
7a0743eb
PH
706PH/32 Added some extra debug output when updating a wait-xxx database.
707
0d85fa3f
PH
708PH/33 The hint "could be header name not terminated by colon", which has been
709 given for certain expansion errors for a long time, was not being given
710 for the ${if def:h_colon_omitted{... case.
711
1bf43b78
PH
712PH/34 The spec says: "With one important exception, whenever a domain list is
713 being scanned, $domain contains the subject domain." There was at least
714 one case where this was not true.
715
520de300
PH
716PH/35 The error "getsockname() failed: connection reset by peer" was being
717 written to the panic log as well as the main log, but it isn't really
718 panic-worthy as it just means the connection died rather early on. I have
719 removed the panic log writing for the ECONNRESET error when getsockname()
720 fails.
721
48c7f9e2
PH
722PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
723 runs only) independently of the message's sender address. This meant
724 that, if the 4xx error was in fact related to the sender, a different
725 message to the same recipient with a different sender could confuse
726 things. In particualar, this can happen when sending to a greylisting
727 server, but other circumstances could also provoke similar problems.
728 I have changed the default so that the retry time for these errors is now
729 based a combination of the sender and recipient addresses. This change
730 can be overridden by setting address_retry_include_sender=false in the
731 smtp transport.
732
99ea1c86
PH
733PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
734 remote server are returned as part of bounce messages. This was not
735 happening for LMTP over a pipe (the lmtp transport), but now it is the
736 same for both kinds of LMTP.
737
a2042e78
PH
738PH/38 Despite being documented as not happening, Exim was rewriting addresses
739 in header lines that were in fact CNAMEs. This is no longer the case.
740
4fbcfc2e
PH
741PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
742 and queue runs started by the daemon processed all messages. This has
743 been fixed so that -R and -S can now usefully be given with -q<time>.
744
aa41d2de
PH
745PH/40 Import PCRE release 6.7 (fixes some bugs).
746
af561417
PH
747PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
748
3cc66b45
PH
749PH/42 Give an error if -q is specified more than once.
750
194cc0e4
PH
751PH/43 Renamed the variables $interface_address and $interface_port as
752 $received_ip_address and $received_port, to make it clear that these
753 values apply to message reception, and not to the outgoing interface when
754 a message is delivered. (The old names remain recognized, of course.)
755
a401ddaa
PH
756PH/44 There was no timeout on the connect() call when using a Unix domain
757 socket in the ${readsocket expansion. There now is.
758
4e88a19f
PH
759PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
760 be meaningful with "accept".
761
d7d7b289
SC
762SC/01 Eximstats V1.43
763 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
764
765SC/02 Eximstats V1.44
766 Use a glob alias rather than an array ref in the generated
767 parser. This improves both readability and performance.
768
769SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
770 Collect SpamAssassin and rejection statistics.
771 Don't display local sender or destination tables unless
772 there is data to show.
773 Added average volumes into the top table text output.
774
775SC/04 Eximstats V1.46
776 Collect data on the number of addresses (recipients)
777 as well as the number of messages.
778
779SC/05 Eximstats V1.47
780 Added 'Message too big' to the list of mail rejection
781 reasons (thanks to Marco Gaiarin).
782
783SC/06 Eximstats V1.48
784 Mainlog lines which have GMT offsets and are too short to
785 have a flag are now skipped.
786
787SC/07 Eximstats V1.49 (Alain Williams)
788 Added the -emptyok flag.
789
790SC/08 Eximstats V1.50
791 Fixes for obtaining the IP address from reject messages.
792
0ea2a468
JJ
793JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
794 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
795 whitesspace changes from 4.64-PH/27
796
797JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
798 match 4.64-PH/13
799
800JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
801 are found, allow negative numbers in numeric criteria)
802
803JJ/06 exipick.20061117.2, added new $message_body_missing variable
804
805JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
806 to match changes made in 4.64-PH/43
807
8a10f5a4
PH
808PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
809
30e18802
PH
810PH/47 Put in an explicit test for a DNS lookup of an address record where the
811 "domain" is actually an IP address, and force a failure. This locks out
812 those revolvers/nameservers that support "A-for-A" lookups, in
813 contravention of the specifications.
814
55728a4f
PH
815PH/48 When a host name was looked up from an IP address, and the subsequent
816 forward lookup of the name timed out, the host name was left in
817 $sender_host_name, contrary to the specification.
d7d7b289 818
d7837193
PH
819PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
820 restricted to single-key lookups, Exim was not diagnosing an error if
821 * or *@ was used with a query-style lookup.
822
87054a31
PH
823PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
824
ea2c01d2
MH
825MH/01 local_scan ABI version incremented to 1.1. It should have been updated
826 long ago, but noone interested enough thought of it. Let's just say that
827 the "1.1" means that there are some new functions that weren't there at
828 some point in the past.
829
e4fa6968
PH
830PH/51 Error processing for expansion failure of helo_data from an smtp
831 transport during callout processing was broken.
832
56f5d9bd
PH
833PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
834 tested/used via the -bh/-bhc/-bs options.
835
922e1c28
PH
836PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
837 bug, fixed in subsequent PCRE releases).
838
21eb6e72
PH
839PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
840 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
841
a0540757
PH
842PH/55 Check for a ridiculously long file name in exim_dbmbuild.
843
944e9e9c 844
478be7b0
SC
845Exim version 4.63
846-----------------
847
848SC/01 Use a glob alias rather than an array ref in eximstats generated
849 parser. This improves both readability and performance.
850
851SC/02 Collect SpamAssassin and rejection statistics in eximstats.
852 Don't display local sender or destination tables in eximstats unless
853 there is data to show.
854 Added average volumes into the eximstats top table text output.
855
856SC/03 Collect data on the number of addresses (recipients) as well
857 as the number of messages in eximstats.
858
2b965a65
TF
859TF/01 Correct an error in the documentation for the redirect router. Exim
860 does (usually) call initgroups() when daemonizing.
478be7b0 861
45b91596
PH
862TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
863 with consistent privilege compared to when running as a daemon.
478be7b0 864
c59f5781
TF
865TF/03 Note in the spec that $authenticated_id is not set for local
866 submissions from trusted users.
867
90fc3069
TF
868TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
869 Thanks to Dean Brooks <dean@iglou.com> for the patch.
870
6083aca0
TF
871TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
872 by adding some example configuration directives to the default
873 configuration file. A little bit of work is required to uncomment the
874 directives and define how usernames and passwords are checked, but
875 there is now a framework to start from.
876
765b530f
PH
877PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
878 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
879 without this. I don't know how relevant this is to other LDAP libraries.
880
4e167a8c
PH
881PH/02 Add the verb name to the "unknown ACL verb" error.
882
4608d683
PH
883PH/03 Magnus Holmgren's patch for filter_prepend_home.
884
b8dc3e4a
PH
885PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
886
5418e93b
PH
887PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
888 directory not expanded when it should be if an expanded home directory
889 was set for the address (which is overridden by the transport).
890
b4a9bda2
PH
891PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
892 libradius.
893
45b91596
PH
894PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
895 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
896 because it is too late at that time, and has no effect.
897
5547e2c5
PH
898PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
899 security issue with \' (bugzilla #107). I could not use the
900 PQescapeStringConn() function, because it needs a PGconn value as one of
901 its arguments.
902
dbcef0ea
PH
903PH/08 When testing addresses using -bt, indicate those final addresses that
904 are duplicates that would not cause an additional delivery. At least one
905 person was confused, thinking that -bt output corresponded to deliveries.
906 (Suppressing duplicates isn't a good idea as you lose the information
907 about possibly different redirections that led to the duplicates.)
908
25257489
PH
909PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
910 systems where poll() doesn't work, in particular OS X.
911
c816d124
PH
912PH/10 Added more information to debugging output for retry time not reached.
913
a9ccd69a
PH
914PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
915 operations in malware.c.
916
75fa1910
PH
917PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
918 signatures.
919
a7d7aa58
PH
920PH/13 If write_rejectlog was set false when logging was sent to syslog with
921 syslog_duplication set false, log lines that would normally be written
922 both the the main log and to the reject log were not written to syslog at
923 all.
924
42119b09
PH
925PH/14 In the default configuration, change the use of "message" in ACL warn
926 statements to "add_header".
927
41609df5
PH
928PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
929 not followed by a command (e.g. "seen endif").
930
a5bd321b
PH
931PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
932 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
933 latter.
934
e85a7ad5 935PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
936 so that it is now:
937
e85a7ad5
PH
938 ${if or { \
939 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
940 { match{$h_precedence:}{(?i)bulk|list|junk} } \
941 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
942 }{no}{yes}}
943
e85a7ad5
PH
944 The Auto-Submitted: and various List- headers are standardised, whereas I
945 don't think Precedence: ever was.
5dff5817 946
d8fe1c03
PH
947PH/18 Refactored debugging code in route_finduser() to show more information,
948 in particular, the error code if getpwnam() issues one.
949
16282d2b
PH
950PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
951 This is apparently needed in addition to the PH/07 change above to avoid
952 any possible encoding problems.
953
35d40a98
PH
954PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
955 but not after initializing Perl.
956
034d99ab
PH
957PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
958 output them only if debugging. By default they are written stderr,
959 apparently, which is not desirable.
960
6ec97b1b
PH
961PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
962 queries.
963
e22ca4ac
JJ
964JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
965 --not options
966
967JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
968
33d73e3b
PH
969PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
970 authenticated or an ident call has been made. Suppress the default
971 values for $authenticated_id and $authenticated_sender (but permit -oMai
972 and -oMas) when testing with -bh.
973
9ecb03f3
PH
974PH/24 Re-jigged the order of the tests in the default configuration so that the
975 tests for valid domains and recipients precede the DNS black list and CSA
976 tests, on the grounds that those ones are more expensive.
977
084efe8d
PH
978PH/25 Exim was not testing for a space following SMTP commands such as EHLO
979 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
980 This bug exists in every version of Exim that I still have, right back to
981 0.12.
982
366fc9f0
PH
983PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
984 However, an attempt to turn on case-sensitivity in a regex key by
985 including (?-i) didn't work because the subject string was already
986 lowercased, and the effects were non-intuitive. It turns out that a
987 one-line patch can be used to allow (?-i) to work as expected.
988
c59f5781 989
c887c79e
TF
990Exim version 4.62
991-----------------
992
993TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
994 other effects) broke the use of negated acl sub-conditions.
995
1cce3af8
PH
996PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
997 patch).
998
afb3eaaf
PH
999PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1000 "Deny" causes Exim to reject the incoming connection with a 554 error.
1001 Unfortunately, if there is a major crisis, such as a disk failure,
1002 tcp-wrappers gives "deny", whereas what one would like would be some
1003 kind of temporary error. A kludge has been added to help with this.
1004 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1005 554 error is used if errno is still zero or contains ENOENT (which occurs
1006 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1007 451 error is used.
1008
e173618b
PH
1009PH/03 Add -lutil to the default FreeBSD LIBS setting.
1010
dd16e114
PH
1011PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1012 errors. Otherwise a message that provokes a temporary error (when other
1013 messages do not) can cause a whole host to time out.
1014
f7fd3850
PH
1015PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1016 addresses were routed directly to files or pipes from a redirect router.
1017 File deliveries just didn't batch; pipe deliveries might have suffered
1018 odd errors.
1019
d87df92c
PH
1020PH/06 A failure to get a lock for a hints database would erroneously always say
1021 "Failed to get write lock", even when it was really a read lock.
1022
7e9f683d
PH
1023PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1024 of 0600. This has been changed to use the value of the lockfile_mode
1025 option (which defaults to 0600).
1026
bfad5236
PH
1027PH/08 Applied small patch from the Sieve maintainer.
1028
01c490df
PH
1029PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1030 folder from quota calculations, a direct delivery into this folder messed
1031 up the contents of the maildirsize file. This was because the regex was
1032 used only to exclude .Trash (or whatever) when the size of the mailbox
1033 was calculated. There was no check that a delivery was happening into an
1034 excluded directory. This bug has been fixed by ignoring all quota
1035 processing for deliveries into excluded directories.
1036
d6629cdc
PH
1037PH/10 Added the maildirfolder_create_regex option to appendfile.
1038
1cce3af8 1039
214e2000
PH
1040Exim version 4.61
1041-----------------
1042
1043PH/01 The code for finding all the local interface addresses on a FreeBSD
1044 system running IPv6 was broken. This may well have applied to all BSD
1045 systems, as well as to others that have similar system calls. The broken
1046 code found IPv4 interfaces correctly, but gave incorrect values for the
1047 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1048 that it would not match correctly against @[] and not recognize the IPv6
1049 addresses as local.
1050
f9daeae0
PH
1051PH/02 The ipliteral router was not recognizing addresses of the form user@
1052 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1053
7e66e54d
PH
1054PH/03 Added disable_ipv6.
1055
c8ea1597
PH
1056PH/04 Changed $reply_address to use the raw form of the headers instead of the
1057 decoded form, because it is most often used to construct To: headers
1058 lines in autoreplies, and the decoded form may well be syntactically
1059 invalid. However, $reply_address has leading white space removed, and all
1060 newlines turned into spaces so that the autoreply transport does not
1061 grumble.
1062
911f6fde
PH
1063PH/05 If group was specified without a user on a router, and no group or user
1064 was specified on a transport, the group from the router was ignored.
1065
47ca6d6c
PH
1066PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1067 for visible compile-time settings that can be used to change these
1068 numbers, for those that want even more. Backwards compatibility with old
1069 spool files has been maintained. However, going back to a previous Exim
1070 release will lost any variables that are in spool files.
1071
ed0e9820
PH
1072PH/07 Two small changes when running in the test harness: increase delay when
1073 passing a TCP/IP connection to a new process, in case the original
1074 process has to generate a bounce, and remove special handling of
1075 127.0.0.2 (sic), which is no longer necessary.
1076
eff37e47
PH
1077PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1078 be the same on different OS.
1079
1921d2ea
PH
1080PH/09 Moved a debug statement in filter processing to avoid a race problem when
1081 testing.
1082
b3f69ca8
JJ
1083JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1084 whether --show-vars was specified or not
1085
1086JJ/02 exipick: Added support for new ACL variable spool format introduced
1087 in 4.61-PH/06
1088
424a1c63
PH
1089PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1090 syntactically invalid From: or Reply-to: line, and a filter used this to
1091 generate an autoreply, and therefore failed to obtain an address for the
1092 autoreply, Exim could try to deliver to a non-existent relative file
1093 name, causing unrelated and misleading errors. What now happens is that
1094 it logs this as a hard delivery error, but does not attempt to create a
1095 bounce message.
1096
7a100415
PH
1097PH/11 The exinext utility has a -C option for testing purposes, but although
1098 the given file was scanned by exinext itself; it wasn't being passed on
1099 when Exim was called.
1100
19b9dc85
PH
1101PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1102 an end-of-file indication when reading a command response.
1103
309bd837
PH
1104PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1105 compiled. In many other places in Exim, IPv6 addresses are always
1106 recognized, so I have changed this. It also means that IPv4 domain
1107 literals of the form [IPV4:n.n.n.n] are now always recognized.
1108
59e82a2a
PH
1109PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1110 used if the router is not running as root, for example, when verifying at
1111 ACL time, or when using -bh. The debugging output from this situation was
1112 non-existent - all you got was a failure to exec. I have made two
1113 changes:
1114
1115 (a) Failures to set uid/gid, the current directory, or a process leader
1116 in a subprocess such as that created by queryprogram now generate
1117 suitable debugging ouput when -d is set.
1118
1119 (b) The queryprogram router detects when it is not running as root,
1120 outputs suitable debugging information if -d is set, and then runs
1121 the subprocess without attempting to change uid/gid.
1122
9edc04ce
PH
1123PH/15 Minor change to Makefile for building test_host (undocumented testing
1124 feature).
1125
1349e1e5
PH
1126PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1127 additional section of a DNS packet that returns MX or SRV records.
1128 Instead, it always explicitly searches for A/AAAA records. This avoids
1129 major problems that occur when a DNS server includes only records of one
1130 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1131 fixed another bug: if SRV records were looked up and the corresponding
1132 address records were *not* found in the additional section, the port
1133 values from the SRV records were lost.
1134
ea49d0e1
PH
1135PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1136 using the correct key (the original address) when searching the retry
1137 rules in order to find which one to use for generating the retry hint.
1138
064a94c9
PH
1139PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1140 adding the default one. Similarly, if it contains a Reply-To: header, the
1141 errors_reply_to option, if set, is not used.
1142
727071f8
PH
1143PH/19 When calculating a retry time, Exim used to measure the "time since
1144 failure" by looking at the "first failed" field in the retry record. Now
1145 it does not use this if it is later than than the arrival time of the
1146 message. Instead it uses the arrival time. This makes for better
1147 behaviour in cases where some deliveries succeed, thus re-setting the
1148 "first failed" field. An example is a quota failure for a huge message
1149 when small messages continue to be delivered. Without this change, the
1150 "time since failure" will always be short, possible causing more frequent
1151 delivery attempts for the huge message than are intended.
dd16e114 1152 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1153
f78eb7c6
PH
1154PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1155 $1, $2, $3) because the numerical variables can be reset during some
1156 expansion items (e.g. "match"), thereby losing the authentication data.
1157
21c28500
PH
1158PH/21 Make -bV show the size of off_t variables so that the test suite can
1159 decide whether to run tests for quotas > 2G.
1160
1161PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1162 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1163 filecount value is greater than 2G or if a quota value is greater than 2G
1164 on a system where the size of off_t is not greater than 4, a panic error
1165 is given.
1166
1688f43b
PH
1167PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1168 never match. The debug and -bh output now contains an explicit error
1169 message indicating a malformed IPv4 address or mask.
1170
1171PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1172 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1173 PH/23 above applies.
1174
9675b384
PH
1175PH/25 Do not write to syslog when running in the test harness. The only
1176 occasion when this arises is a failure to open the main or panic logs
1177 (for which there is an explicit test).
1178
6a3f1455
PH
1179PH/26 Added the /no_tell option to "control=freeze".
1180
dac79d3e
PH
1181PH/27 If a host name lookup failed very early in a connection, for example, if
1182 the IP address matched host_lookup and the reverse lookup yielded a name
1183 that did not have a forward lookup, an error message of the form "no IP
1184 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1185 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1186
5977a0b3
PH
1187PH/28 An enabling patch from MH: add new function child_open_exim2() which
1188 allows the sender and the authenticated sender to be set when
1189 submitting a message from within Exim. Since child_open_exim() is
1190 documented for local_scan(), the new function should be too.
1191
c91535f3
PH
1192PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1193 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1194 results in an empty string is now treated as unset.
1195
0d46a8c8
PH
1196PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1197
278c6e6c
PH
1198PH/31 Added sender_verify_fail logging option.
1199
2cbb4081
PH
1200PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1201 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1202 tidied the source and removed it altogether.
1203
3eef829e
PH
1204PH/33 When a queue run was abandoned because the load average was too high, a
1205 log line was always written; now it is written only if the queue_run log
1206 selector is set. In addition, the log line for abandonment now contains
1207 information about the queue run such as the pid. This is always present
1208 in "start" and "stop" lines but was omitted from the "abandon" line.
1209
1ab95fa6
PH
1210PH/34 Omit spaces between a header name and the colon in the error message that
1211 is given when verify = headers_syntax fails (if there are lots of them,
1212 the message gets confusing).
1213
230205fc
PH
1214PH/35 Change the default for dns_check_names_pattern to allow slashes within
1215 names, as there are now some PTR records that contain slashes. This check
1216 is only to protect against broken name servers that fall over on strange
1217 characters, so the fact that it applies to all lookups doesn't matter.
1218
75e0e026
PH
1219PH/36 Now that the new test suite is complete, we can remove some of the
1220 special code in Exim that was needed for the old test suite. For example,
1221 sorting DNS records because real resolvers return them in an arbitrary
1222 order. The new test suite's fake resolver always returns records in the
1223 same order.
1224
1225PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1226 bounces) except when queue_only is set, to avoid logging races between
1227 the different processes.
1228
145396a6
PH
1229PH/38 Panic-die if .include specifies a non-absolute path.
1230
3cd34f13
PH
1231PH/39 A tweak to the "H" retry rule from its user.
1232
11121d3d
JJ
1233JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1234 a label. They prevented compilation on older perls.
1235
1236JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1237 a warning to be raised on newish perls.
1238
1239JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1240 on queue. Changes to match documented behaviour of showing count of
1241 messages matching specified criteria.
1242
8def5aaf
PH
1243PH/40 Changed the default ident timeout from 30s to 5s.
1244
929ba01c
PH
1245PH/41 Added support for the use of login_cap features, on those BSD systems
1246 that have them, for controlling the resources used by pipe deliveries.
1247
2632889e
PH
1248PH/42 The content-scanning code uses fopen() to create files in which to put
1249 message data. Previously it was not paying any attention to the mode of
1250 the files. Exim runs with umask(0) because the rest of the code creates
1251 files with open(), and sets the required mode explicitly. Thus, these
1252 files were ending up world-writeable. This was not a big issue, because,
1253 being within the spool directory, they were not world-accessible. I have
1254 created a function called modefopen, which takes an additional mode
1255 argument. It sets umask(777), creates the file, chmods it to the required
1256 mode, then resets the umask. All the relevant calls to fopen() in the
1257 content scanning code have been changed to use this function.
1258
944a9c55
PH
1259PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1260 to 24 hours. This avoids potential overflow problems when processing G
1261 and H retry rules. I suspect nobody ever tinkers with this value.
1262
4a23603b
PH
1263PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1264
4730f942
PH
1265PH/45 When the plaintext authenticator is running as a client, the server's
1266 challenges are checked to ensure they are valid base64 strings. By
1267 default, the authentication attempt is cancelled if an invalid string is
1268 received. Setting client_ignore_invalid_base64 true ignores these errors.
1269 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1270 they are received. Thus, the responses can be made to depend on the
1271 challenges. If an invalid string is ignored, an empty string is placed in
1272 the variable.
1273
30dba1e6
PH
1274PH/46 Messages that are created by the autoreply transport now contains a
1275 References: header, in accordance with RFCs 2822 and 3834.
1276
382afc6b
PH
1277PH/47 Added authenticated_sender_force to the smtp transport.
1278
a86229cf
PH
1279PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1280
50c99ba6
PH
1281PH/49 Installed latest patch from the Sieve maintainer.
1282
d35e429d
PH
1283PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1284 was also set, the appendfile transport was unnecessarily scanning a
1285 directory of message files (e.g. for maildir delivery) to find the count
1286 of files (along with the size), even though it did not need this
1287 information. It now does the scan only if it needs to find either the
1288 size of the count of files.
1289
f90d018c
PH
1290PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1291
75def545
PH
1292PH/52 Two bugs concerned with error handling when the smtp transport is
1293 used in LMTP mode:
1294
1295 (i) Exim was not creating retry information for temporary errors given
1296 for individual recipients after the DATA command when the smtp transport
1297 was used in LMTP mode. This meant that they could be retried too
1298 frequently, and not timed out correctly.
1299
1300 (ii) Exim was setting the flag that allows error details to be returned
1301 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1302 recipients that were returned after the DATA command.
1303
1304PH/53 This is related to PH/52, but is more general: for any failing address,
1305 when detailed error information was permitted to be returned to the
1306 sender, but the error was temporary, then after the final timeout, only
1307 "retry timeout exceeded" was returned. Now it returns the full error as
1308 well as "retry timeout exceeded".
1309
c46782ef
PH
1310PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1311 do this, and (what is worse) MTAs that accept it.
1312
71fafd95
PH
1313PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1314 will now be deprecated.
1315
2c5db4fd
PH
1316PH/56 New os.c-cygwin from the Cygwin maintainer.
1317
9cf6b11a
JJ
1318JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1319 formats (previously only available in exim formats via -bpr, -bpru,
1320 and -bpra. Now also available in native and exiqgrep formats)
1321
1322JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1323 with very large, slow to parse queues
1324
1325JJ/08 exipick: added ! as generic prefix to negate any criteria format
1326
1327JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1328
898d150f
PH
1329PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1330 responses to authentication challenges, though it was showing the
1331 challenges; (ii) I've removed the CR characters from the debug output for
1332 SMTP output lines.
1333
46218253
PH
1334PH/58 Allow for the insertion of a newline as well as a space when a string
1335 is turned into more than one encoded-word during RFC 2047 encoding. The
1336 Sieve code now uses this.
1337
e97957bc
PH
1338PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1339 data_4xx, lost_connection, tls_required.
1340
81e509d7
PH
1341PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1342 message was being sent as an SMTP response.
1343
3d240ff7
PH
1344PH/61 Add -l and -k options to exicyclog.
1345
b37c4101
PH
1346PH/62 When verifying, if an address was redirected to one new address, so that
1347 verification continued, and the new address failed or deferred after
1348 having set something in $address_data, the value of $address_data was not
1349 passed back to the ACL. This was different to the case when no
1350 redirection occurred. The value is now passed back in both cases.
1351
79378e0f
PH
1352PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1353 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1354 use login_cap.h, so on its own it isn't the distinguishing feature. The
1355 new name refers directly to the setclassresources() function.
1356
e49c7bb4
PH
1357PH/65 Added configuration files for NetBSD3.
1358
d114ec46
PH
1359PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1360
f3d7df6c
PH
1361PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1362 is preferred over IPv4.
1363
715ab376
PH
1364PH/68 The bounce_return_message and bounce_return_body options were not being
1365 honoured for bounces generated during the reception of non-SMTP messages.
1366 In particular, this applied to messages rejected by the ACL. This bug has
1367 been fixed. However, if bounce_return_message is true and bounce_return_
1368 body is false, the headers that are returned for a non-SMTP message
1369 include only those that have been read before the error was detected.
1370 (In the case of an ACL rejection, they have all been read.)
1371
6b31b150
PH
1372PH/69 The HTML version of the specification is now built in a directory called
1373 spec_html instead of spec.html, because the latter looks like a path with
1374 a MIME-type, and this confuses some software.
1375
1376PH/70 Catch two compiler warnings in sieve.c.
1377
d515a917
PH
1378PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1379 function verify_get_ident() calls ip_connect() to connect a socket, but
1380 if the "connect()" function timed out, ip_connect() used to close the
1381 socket. However, verify_get_ident() also closes the socket later, and in
1382 between Exim writes to the log, which may get opened at this point. When
1383 the socket was closed in ip_connect(), the log could get the same file
1384 descriptor number as the socket. This naturally causes chaos. The fix is
1385 not to close the socket in ip_connect(); the socket should be closed by
1386 the function that creates it. There was only one place in the code where
1387 this was missing, in the iplookup router, which I don't think anybody now
1388 uses, but I've fixed it anyway.
1389
9b8fadde
PH
1390PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1391 well as to direct DNS lookups. Otherwise the handling of names in host
1392 lists is inconsistent and therefore confusing.
1393
214e2000 1394
5de37277
PH
1395Exim version 4.60
1396-----------------
1397
cc38ddbf
PH
1398PH/01 Two changes to the default runtime configuration:
1399
1400 (1) Move the checks for relay_from_hosts and authenticated clients from
1401 after to before the (commented out) DNS black list checks.
1402
1403 (2) Add control=submission to the relay_from_hosts and authenticated
1404 clients checks, on the grounds that messages accepted by these
1405 statements are most likely to be submissions.
5de37277 1406
72fdd6ae
PH
1407PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1408
1409 (1) Generate an error if the third argument for the ${prvs expansion is
1410 not a single digit.
1411
1412 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1413 string.
1414
1415 (3) Reset the variables that are obtained from the first argument of
1416 ${prvscheck and used in the second argument before leaving the code,
1417 because their memory is reclaimed, so using them afterwards may do
1418 silly things.
1419
1420 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1421 one (it's much easier than Tom thought :-).
1422
1423 (5) Because of (4), we can now allow for the use of $prvscheck_result
1424 inside the third argument.
cb9328de 1425
cb741023
PH
1426PH/03 For some reason, the default setting of PATH when running a command from
1427 a pipe transport was just "/usr/bin". I have changed it to
1428 "/bin:/usr/bin".
1429
f174f16e
PH
1430PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1431 anything to be listed in the output from -bV.
b2f5a032 1432
c25242d7
PH
1433PH/05 When a filter generated an autoreply, the entire To: header line was
1434 quoted in the delivery log line, like this:
1435
1436 => >A.N.Other <ano@some.domain> <original@ddress> ...
1437
1438 This has been changed so that it extracts the operative address. There
1439 may be more than one such address. If so, they are comma-separated, like
1440 this:
1441
1442 => >ano@some.domain,ona@other.domain <original@ddress> ...
1443
82c19f95
PH
1444PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1445 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1446 not being looked up in the rDNS to get a host name, Exim was showing the
1447 IP address twice in Received: lines, even though the IP addresses were
1448 identical. For example:
1449
1450 Received: from [1.2.3.4] (helo=[1.2.3.4])
1451
1452 However, if the real host name was known, it was omitting the HELO data
1453 if it matched the actual IP address. This has been tidied up so that it
1454 doesn't show the same IP address twice.
1455
d7ffbc12
PH
1456PH/07 When both +timestamp and +memory debugging was on, the value given by
1457 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1458 called by the debug printing, thereby overwriting the timestamp buffer.
1459 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1460
9f526266
PH
1461PH/08 When the original message was included in an autoreply transport, it
1462 always said "this is a copy of the message, including all the headers",
1463 even if body_only or headers_only was set. It now gives an appropriate
1464 message.
1465
87fcc8b9
PH
1466PH/09 Applied a patch from the Sieve maintainer which:
1467
1468 o fixes some comments
1469 o adds the (disabled) notify extension core
1470 o adds some debug output for the result of if/elsif tests
1471 o points to the current vacation draft in the documentation
1472 and documents the missing references header update
1473
1474 and most important:
1475
1476 o fixes a bug in processing the envelope test (when testing
1477 multiple envelope elements, the last element determinted the
1478 result)
1479
456682f5
PH
1480PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1481 Electronic Mail") by including:
1482
1483 Auto-submitted: auto-generated
1484
1485 in the messages that it generates (bounce messages and others, such as
1486 warnings). In the case of bounce messages for non-SMTP mesages, there was
1487 also a typo: it was using "Auto_submitted" (underscore instead of
1488 hyphen). Since every message generated by Exim is necessarily in response
1489 to another message, thes have all been changed to:
1490
1491 Auto-Submitted: auto-replied
1492
1493 in accordance with these statements in the RFC:
1494
1495 The auto-replied keyword:
1496
1497 - SHOULD be used on messages sent in direct response to another
1498 message by an automatic process,
1499
1500 - MUST NOT be used on manually-generated messages,
1501
1502 - MAY be used on Delivery Status Notifications (DSNs) and Message
1503 Disposition Notifications (MDNs),
1504
1505 - MUST NOT be used on messages generated by automatic or periodic
1506 processes, except for messages which are automatic responses to
1507 other messages.
1508
3e46c1aa
PH
1509PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1510 to the default Received: header definition.
456682f5 1511
49826d12
PH
1512PH/12 Added log selector acl_warn_skipped (default on).
1513
eba0c039
PH
1514PH/13 After a successful wildlsearch lookup, discard the values of numeric
1515 variables because (a) they are in the wrong storage pool and (b) even if
1516 they were copied, it wouldn't work properly because of the caching.
1517
a0d6ba8a
PH
1518PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1519 checking when decoding. Apparently there are clients that generate
1520 overlong encoded strings. Why am I not surprised?
1521
f0917727
PH
1522PH/15 If the first argument of "${if match_address" was not empty, but did not
1523 contain an "@" character, Exim crashed. Now it writes a panic log message
1524 and treats the condition as false.
1525
096fee00
PH
1526PH/16 In autoreply, treat an empty string for "once" the same as unset.
1527
024bd3c2
PH
1528PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1529 extension "envelope-auth". The code is finished and in agreement with
1530 other implementations, but there is no documentation so far and in fact,
1531 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1532 not changing the active code.
1533
1534 Print executed "if" and "elsif" statements when debugging is used. This
1535 helps a great deal to understand what a filter does.
1536
1537 Document more things not specified clearly in RFC3028. I had all this
1538 sorted out, when out of a sudden new issues came to my mind. Oops."
1539
df199fec
PH
1540PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1541 (Bugzilla #53).
1542
d27f1df3
PH
1543PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1544 canonical form (as documented). However, after a host name lookup from
1545 the IP address, check_host() was doing a simple string comparison with
1546 addresses acquired from the DNS when checking that the found name did
1547 have the original IP as one of its addresses. Since any found IPv6
1548 addresses are likely to be in abbreviated form, the comparison could
1549 fail. Luckily, there already exists a function for doing the comparison
1550 by converting both addresses to binary, so now that is used instead of
1551 the text comparison.
1552
96776534
PH
1553PH/20 There was another similar case to PH/19, when a complete host name was
1554 given in a host list; looking up its IP address could give an abbreviated
1555 form, whereas the current host's name might or might not be abbreviated.
1556 The same fix has been applied.
1557
5de37277 1558
9a799bc0
PH
1559Exim version 4.54
1560-----------------
1561
1562PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1563 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1564 It now does.
1565
99a4b039
PH
1566PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1567 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1568
1569PH/03 Typo: missing ".o" in src/pcre/Makefile.
1570
4b233853
PH
1571PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1572 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1573 Also, for "Auto-Submitted", treat anything other than "no" as
1574 non-personal, in accordance with RFC 3834. (Previously it treated
1575 anything starting "auto-" as non-personal.)
1576
8857ccfd
PH
1577TF/01 The control=submission/name=... option had a problem with syntax
1578 errors if the name included a slash character. The /name= option
1579 now slurps the rest of the string, so it can include any characters
1580 but it must come last in the list of options (after /sender_retain
1581 or /domain=).
1582
433a2980
PH
1583PH/05 Some modifications to the interface to the fake nameserver for the new
1584 testing suite.
1585
3e46c1aa 1586
9a799bc0 1587
e3a311ba
TK
1588Exim version 4.53
1589-----------------
1590
1591TK/01 Added the "success_on_redirect" address verification option. See
1592 NewStuff for rationale and an example.
1593
13b685f9
PH
1594PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1595
395ff96d
PH
1596PH/02 Patch to exigrep to allow it to work on syslog lines.
1597
5b68f6e4
PH
1598PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1599 fread() to skip over the body file's header line, because in Cygwin the
1600 header line is locked and is inaccessible.
1601
1ab52c69
PH
1602PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1603 co-exist for some time) to make it clear that it is the Exim ID that is
1604 referenced, not the Message-ID: header line.
1605
b07e6aa3
PH
1606PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1607 string_format() function, because snprintf() does not exist on all
1608 operating systems.
1609
254e032f
PH
1610PH/06 The use of forbid_filter_existstest now also locks out the use of the
1611 ${stat: expansion item.
1612
3af76a81
PH
1613PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1614 protocol synchronization error", to keep the pedants happy.
1615
2548ba04
PH
1616PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1617 well as for IRIX systems, when gcc is being used. See the host.c source
1618 file for comments.
1619
b6c6011d
PH
1620PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1621
cf39cf57
PH
1622PH/10 Named domain lists were not working if used in a queue_smtp_domains
1623 setting.
1624
f1513293
PH
1625PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1626 transport and to the smtp transport in LMTP mode.
1627
727549a4
PH
1628TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1629
af46795e
PH
1630PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1631 run a filter in a subprocess. This could lead to confusion in subsequent
1632 lookups in the parent process. There should also be a search_tidyup() at
1633 the end of the subprocess.
1634
d7b47fd0
PH
1635PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1636 only if the host matched helo_try_verify_hosts, which caused the
1637 verification to occur when the EHLO/HELO command was issued. The ACL just
1638 tested the remembered result. Now, if a previous verification attempt has
1639 not happened, "verify = helo" does it there and then.
1640
ee744174
JJ
1641JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1642
b582ab87
PH
1643TK/03 Fix log output including CR from clamd.
1644
41a13e0a
PH
1645PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1646 exist provoked a memory error which could cause a segfault.
1647
f625cc5a
PH
1648PH/15 Installed PCRE 6.2
1649
1650PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1651
21f7af35
PH
1652PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1653 of the problem. Specifically, suggested +O2 rather than +O1 for the
1654 HP-UX compiler.
1655
31480e42
PH
1656PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1657
2d280592
PH
1658PH/20 If a delivery was routed to a non-standard port by means of an SRV
1659 record, the port was not correctly logged when the outgoing_port log
1660 selector was set (it logged the transort's default port).
1661
7cd1141b
PH
1662PH/21 Added support for host-specific ports to manualroute, queryprogram,
1663 fallback_hosts, and "hosts" in the smtp transport.
1664
1665PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1666 host errors such as "Connection refused".
1667
750af86e
PH
1668PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1669 authentication with radiusclient 0.4.9:
1670
1671 - Error returned from rc_read_config was caught wrongly
1672 - Username/password not passed on to radius server due to wrong length.
1673
1674 The presumption is that some radiusclient API changes for 4.51/PH/17
1675 were not taken care of correctly. The code is still untested by me (my
1676 Linux distribution still has 0.3.2 of radiusclient), but it was
1677 contributed by a Radius user.
1678
1679PH/24 When doing a callout, the value of $domain wasn't set correctly when
1680 expanding the "port" option of the smtp transport.
1681
4304270b
TK
1682TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1683 while reading a MIME header. Thanks to Tom Hughes for a patch.
1684
750af86e
PH
1685PH/24 Include config.h inside local_scan.h so that configuration settings are
1686 available.
1687
64ffc24f
PH
1688PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1689 that in an ACL for RCPT (for example), you can examine exactly what was
1690 received.
1691
5dd9625b
PH
1692PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1693 commands, but it was not correctly comparing the address with the actual
1694 client host address. Thus, it would show the EHLO address in Received:
1695 header lines when this was not necessary.
1696
5591031b
PH
1697PH/27 Added the % operator to ${eval:}.
1698
ba18e66a
PH
1699PH/28 Exim tries to create and chdir to its spool directory when it starts;
1700 it should be ignoring failures (because with -C, for example, it has lost
1701 privilege). It wasn't ignoring creation failures other than "already
1702 exists".
1703
9cec981f
PH
1704PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1705 -bV or -d is used.
1706
aa2b5c79
PH
1707PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1708 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1709 too many continuations, the temporary file was not being removed, and the
1710 return code was incorrect.
aa2b5c79 1711
48a53b7f
PH
1712PH/31 Missing "BOOL" in function definition in filtertest.c.
1713
1c59d63b
PH
1714PH/32 Applied Sieve patches from the maintainer.
1715
671012da
TK
1716TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1717
1509d3a8
PH
1718PH/33 Added "verify = not_blind".
1719
1720PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1721 Local/Makefile (with some defaults set). These are used in built scripts
1722 such as exicyclog, but they have never been used in the exim_install
1723 script (though there are many overriding facilities there). I have
1724 arranged that the exim_install script now takes note of these two
1725 settings.
1726
1727PH/35 Installed configuration files for Dragonfly.
1728
2fe1a124
PH
1729PH/36 When a locally submitted message by a trusted user did not contain a
1730 From: header, and the sender address was obtained from -f or from an SMTP
1731 MAIL command, and the trusted user did not use -F to supply a sender
1732 name, $originator_name was incorrectly used when constructing a From:
1733 header. Furthermore, $originator_name was used for submission mode
1734 messages from external hosts without From: headers in a similar way,
1735 which is clearly wrong.
1736
8800895a
PH
1737PH/37 Added control=suppress_local_fixups.
1738
ccfdb010
PH
1739PH/38 When log_selector = +received_sender was set, and the addition of the
1740 sender made the log line's construction buffer exactly full, or one byte
1741 less than full, an overflow happened when the terminating "\n" was
1742 subsequently added.
1743
1130bfb0
PH
1744PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1745 when the result of a list match is failure because a DNS lookup failed.
1746
ebcb507f
PH
1747PH/40 RM_COMMAND is now used in the building process.
1748
c35e155c
PH
1749PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1750 the "build-* directories that it finds.
1751
95d1f782
PH
1752PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1753 address in a domain literal was a prefix of an interface address.
1754
fd6de02e
PH
1755PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1756 when verifying a sender address, unless rewrite_headers is false.
1757
58de37c5
PH
1758PH/44 Wrote a long comment about why errors_to addresses are verified as
1759 recipients, not senders.
1760
261cf466
TF
1761TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1762 the ratelimit ACL was added.
1763
3ee512ff
PH
1764PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1765
e08c430f
PH
1766PH/46 Added extra information about PostgreSQL errors to the error string.
1767
bef5a11f
PH
1768PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1769 avoiding the need to install special zones in a real server. This is
1770 backwards compatible; if it can't find the fake resolver, it drops back.
1771 Thus, both old and new test suites can be run.
1772
7546de58
TF
1773TF/02 Added util/ratelimit.pl
1774
e5d5a95f
TF
1775TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1776 clock is set back in time.
1777
2e88a017
TF
1778TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1779 Candler <B.Candler@pobox.com>.
1780
a5f65aa4
TF
1781TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1782 OK for addresses that are the result of redirections.
1783
e7726cbf
PH
1784PH/48 A number of further additions for the benefit of the new test suite,
1785 including a fake gethostbyname() that interfaces to the fake DNS resolver
1786 (see PH/47 above).
1787
a7fdad5b
TF
1788TF/06 The fix for widen_domains has also been applied to qualify_single and
1789 search_parents which are the other dnslookup options that can cause
1790 header rewrites.
1791
6af56900
PH
1792PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1793 type ("H").
1794
0925ede6
PH
1795PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1796
66afa403
TF
1797TF/07 Exim produced the error message "an SRV record indicated no SMTP
1798 service" if it encountered an MX record with an empty target hostname.
1799 The message is now "an MX or SRV record indicated no SMTP service".
1800
0154e85a
TF
1801TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1802 if the DNS of the sending site is misconfigured. This is quite a
1803 common situation. This change restores the behaviour of treating a
1804 helo verification defer as a failure.
1805
16f12c76
PH
1806PH/51 If self=fail was set on a router, the bounce message did not include the
1807 actual error message.
1808
bbe902f0 1809
e5a9dba6
PH
1810Exim version 4.52
1811-----------------
1812
1813TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1814
22c3b60b
PH
1815PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1816 command itself ended in error, the underlying message about the transport
1817 filter timeout was being overwritten with the pipe command error. Now the
1818 underlying error message should be appended to the second error message.
1819
06a9b4b5
PH
1820TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1821
c1ac6996
PH
1822PH/02 Reduce the amount of output that "make" produces by default. Full output
1823 can still be requested.
1824
9c7a242c
PH
1825PH/03 The warning log line about a condition test deferring for a "warn" verb
1826 was being output only once per connection, rather than after each
1827 occurrence (because it was using the same function as for successful
1828 "warn" verbs). This seems wrong, so I have changed it.
1829
87ba3f5f
PH
1830TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1831 it should not have, which might have caused a crash in the right
1832 circumstances, but probably never did.
1833
1834PH/04 Installed a modified version of Tony Finch's patch to make submission
1835 mode fix the return path as well as the Sender: header line, and to
1836 add a /name= option so that you can make the user's friendly name appear
1837 in the header line.
1838
29aba418
TF
1839TF/03 Added the control = fakedefer ACL modifier.
1840
fe0dab11
TF
1841TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1842 Mark Lowes for thorough testing.
870f6ba8 1843
11d337a4
TK
1844TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1845
1846TK/03 Merged latest SRS patch from Miles Wilton.
1847
415c8f3b
PH
1848PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1849 with the definition in sysexits.h (which is #included earlier).
1850 Fortunately, Exim does not actually use EX_OK. The code used to try to
1851 preserve the sysexits.h value, by assumimg that macro definitions were
1852 scanned for macro replacements. I have been disabused of this notion,
1853 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1854
958541e9
PH
1855PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1856 in the smtp transport. When a block could not be written in a single
1857 write() function, the timeout was being re-applied to each part-write.
1858 This seems wrong - if the receiver was accepting one byte at a time it
1859 would take for ever. The timeout is now adjusted when this happens. It
1860 doesn't have to be particularly precise.
1861
c206415f
TK
1862TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1863 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1864
2a4be8f9
PH
1865PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1866 without a domain if the check to <postmaster@domain> fails.
1867
1cba11c5
SC
1868SC/01 Eximstats: added -xls and the ability to specify output files
1869 (patch written by Frank Heydlauf).
1870
1871SC/02 Eximstats: use FileHandles for outputing results.
1872
1873SC/03 Eximstats: allow any combination of xls, txt, and html output.
1874
1875SC/04 Eximstats: fixed display of large numbers with -nvr option
1876
1877SC/05 Eximstats: fixed merging of reports with empty tables.
1878
1879SC/06 Eximstats: added the -include_original_destination flag
1880
1881SC/07 Eximstats: removed tabs and trailing whitespace.
1882
1005d00e
TK
1883TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1884
1885TK/06 MBOX spool code: Add real "From " MBOX separator line
1886 so the .eml file is really in mbox format (even though
1887 most programs do not really care). Patch from Alex Miller.
1888
1889TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1890 The latter is generated from $received_to and is only set if the
1891 message has one envelope recipient. SA can use these headers,
1892 obviously out-of-the-box. Patch from Alex Miller.
1893
9b4768fa
PH
1894PH/08 The ${def test on a variable was returning false if the variable's
1895 value was "0", contrary to what the specification has always said!
1896 The result should be true unless the variable is empty.
1897
1898PH/09 The syntax error of a character other than { following "${if
1899 def:variable_name" (after optional whitespace) was not being diagnosed.
1900 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1901 accidental colon was present, for example, could give incorrect results.
1902
0d7eb84a
PH
1903PH/10 Tidied the code in a number of places where the st_size field of a stat()
1904 result is used (not including appendfile, where other changes are about
1905 to be made).
1906
1907PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1908 This involved changing a lot of size variables from int to off_t. It
1909 should work with maildirs and everything.
1910
40727bee
TK
1911TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1912 spamd dying while we are connected to it.
1913
554d2369
TF
1914TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1915 <jgh@wizmail.org>
1916
1f922db1
PH
1917PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1918 function for BDB 4.3.
1919
ef213c3b
PH
1920PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1921
8ac170f3
PH
1922PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1923 the sources for PCRE have been re-arranged and more files are now
1924 involved.
1925
b1c749bb
PH
1926PH/15 The code I had for printing potentially long long variables in PH/11
1927 above was not the best (it lost precision). The length of off_t variables
1928 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1929 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1930 to be "long long int" or "long int". This is needed for the internal
1931 formatting function string_vformat().
b1c749bb 1932
4aac9b49
PH
1933PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1934 the configuration file to be ":syslog", then the script "guesses" where
1935 the logs files are, rather than using the compiled in default. In our
1936 case the guess is not the same as the compiled default, so the script
1937 suddenly stopped working when I started to use syslog. The patch checks
1938 to see if log_file_path is "". If so, it attempts to read it from exim
1939 with no configuration file to get the compiled in version, before it
1940 falls back to the previous guessing code."
1941
294520c8
TK
1942TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1943 implementing BATV in an Exim configuration. See NewStuff for the gory
1944 details.
1945
5bd022fe
PH
1946PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1947 Makefile that are specific to HP-UX.
1948
90e9ce59
PH
1949PH/18 If the "use_postmaster" option was set for a recipient callout together
1950 with the "random" option, the postmaster address was used as the MAIL
1951 FROM address for the random test, but not for the subsequent recipient
1952 test. It is now used for both.
1953
5ea81592
PH
1954PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1955 patch removes a few documentation additions to RFC 3028, because the
1956 latest draft now contains them. It adds the new en;ascii-case comparator
1957 and a new error check for 8bit text in MIME parts. Comparator and
1958 require names are now matched exactly. I enabled the subaddress
1959 extension, but it is not well tested yet (read: it works for me)."
1960
c6c2dc1d
PH
1961PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1962 rework some of the code of TK/09 above to avoid the hardwired use of
1963 "%lld" and "long long". Replaced the call to snprintf() with a call to
1964 string_vformat().
1965
fffffe4c
PH
1966PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1967 records point to non-existent hosts", "retry timeout exceeded", and
1968 "retry time not reached for any host after a long failure period".
ca02eafb 1969
9a26b6b2
PH
1970PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1971 experimental DomainKeys support:
1972
1973 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1974 (2) On an error such as an illegally used "control", the wrong name for
1975 the control was given.
1976
1977 These problems did NOT occur unless DomainKeys support was compiled.
1978
4aee0225
PH
1979PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1980
32d668a5
PH
1981PH/24 Added ${if match_ip condition.
1982
8187c3f3
PH
1983PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1984 databases so that it will be absolutely obvious if a crash occurs in the
1985 DB library. This is a regular occurrence (often caused by mis-matched
1986 db.h files).
1987
ff790e47 1988PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1989 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1990 picked up on a user's system that detects such things. There doesn't seem
1991 to be a gcc warning option for this - only an attribute that has to be
1992 put on the function's prototype. It seems that in Fedora Core 4 they have
1993 set this on a number of new functions. No doubt there will be more in due
1994 course.
ff790e47 1995
5417f6d1
PH
1996PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1997 specify a transport. However, if an address that was verified by such a
1998 router was the subject of a callout, Exim crashed because it tried to
1999 read the rcpt_include_affixes from the non-existent transport. Now it
2000 just assumes that the setting of that option is false. This bug was
2001 introduced by 4.51/PH/31.
2002
59cf8544
PH
2003PH/28 Changed -d+all to exclude +memory, because that information is very
2004 rarely of interest, but it makes the output a lot bigger. People tend to
2005 do -d+all out of habit.
2006
e7ad8a65
PH
2007PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2008 code in os-type was giving problems when libc.so lives in lib64, like on
2009 x86_64 Fedora Core.
2010
ade42478
PH
2011PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2012 aren't the modern standard, and it seems that some systems' include files
2013 don't always have them. Exim was already checking for some of the newer
2014 ones like T_AAAA, and defining it itself. I've added checks for all the
2015 record types that Exim uses.
2016
182ad5cf
PH
2017PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2018 not automatically generating a new one, as it is supposed to. This
2019 prevented TLS from working. If the file did exist, but contained invalid
2020 data, a new version was generated, as expected. It was only the case of a
2021 non-existent file that was broken.
2022
b0d9fc80
TK
2023TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2024 with a change in libdomainkeys > 0.64.
2025
2026TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2027 from DNS. If the selector record carries the flag, it now has
2028 precedence over the domain-wide flag.
2029
2030TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2031
47c7a64a
PH
2032PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2033 the use of a port name that isn't defined in /etc/services) occurred, the
2034 message was deferred as in a normal delivery, and thus remained on the
2035 spool, instead of being failed because of the mua_wrapper setting. This
2036 is now fixed, and I tidied up some of the mua_wrapper messages at the
2037 same time.
2038
a388bce4
SC
2039SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2040 the messages in a hash of arrays rather than using individual hashes.
2041 This is a bit cleaner and results in dramatic memory savings, albeit
2042 at a slight CPU cost.
2043
2044SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2045 as requested by Marc Sherman.
2046
2047SC/10 Eximstats: added histograms for user specified patterns as requested
2048 by Marc Sherman.
2049
0793e4ed
SC
2050SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2051
c58b88df
PH
2052PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2053 fopen() in the content-scanning modules that did not already have it.
2054
e7ad8a65 2055
7982096b
PH
2056Exim version 4.51
2057-----------------
2058
1a46a8c5
PH
2059TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2060 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2061
2f079f46 2062TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2063
2064TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2065
2066PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2067 to test Sieve filters that use "vacation".
2068
2069PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2070 that changes the way the GnuTLS parameters are stored in the cache file.
2071 The new format can be generated externally. For backward compatibility,
2072 if the data in the cache doesn't make sense, Exim assumes it has read an
2073 old-format file, and it generates new data and writes a new file. This
2074 means that you can't go back to an older release without removing the
2075 file.
2076
2077PH/03 A redirect router that has both "unseen" and "one_time" set does not
2078 work if there are any delivery delays because "one_time" forces the
2079 parent to be marked "delivered", so its unseen clone is never tried
2080 again. For this reason, Exim now forbids the simultaneous setting of
2081 these two options.
2082
2083PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2084 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2085 entry if you want to know the details. The fix, however, neglected to
2086 consider the case when local delivery batching is involved. The test for
2087 "previously delivered" was not happening when checking to see if an
2088 address could be batched with a previous (undelivered) one; under
2089 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2090 address.
1a46a8c5
PH
2091
2092PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2093 in its include files, and this causes problems building Exim.
2094
2095PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2096 header_syntax) but Exim was just ignoring anything given after a slash.
2097 In particular, this caused confusion with an attempt to use "verify =
2098 reverse_host_lookup/defer_ok". An error is now given when options are
2099 supplied for verify items that do not have them. (Maybe reverse_host_
2100 lookup should have a defer_ok option, but that's a different point.)
2101
2102PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2103 defined by RFC 821) to 2048, because there were problems with some AUTH
2104 commands, and RFC 1869 says the size should be increased for extended
2105 SMTP commands that take arguments.
2106
2107PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2108 Finch).
2109
2110PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2111 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2112
49c2d5ea
PH
2113PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2114 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2115 whatever). Otherwise the password may appear in the log. Following change
2116 PH/42 below, there is no longer a chance of it appearing in a bounce
2117 message.
49c2d5ea 2118
bf759a8b
PH
2119PH/11 Installed exipick version 20050225.0 from John Jetmore.
2120
83364d30
PH
2121PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2122 of its addresses was ever tried. (Bugzilla bug #2.)
2123
7999bbd7
PH
2124PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2125 the result incorrectly in the debug output. (It correctly added a newline
2126 to what was transported.)
2127
7dbf77c9
PH
2128TF/01 Added $received_time.
2129
74e0617f
PH
2130PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2131 commented out examples of how to interface to a virus scanner and to
2132 SpamAssassin. Also added commented examples of av_scanner and
2133 spamd_address settings.
2134
2f079f46
PH
2135PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2136 and controls are allowed in which ACLs. There were a couple of minor
2137 errors. Some of the entries in the conditions table (which is a table of
2138 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2139 negation of where the condition IS allowed.
2140
8c841523
PH
2141PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2142
7766a4f0
PH
2143PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2144 header file does not have a version number, so I've had to invent a new
2145 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2146 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2147 radiusclient), but it was contributed by a Radius user.
2148
8b417f2c
PH
2149PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2150 files or directories, for OpenSSL.
2151
901f42cb
PH
2152PH/19 When an Exim process that is running as root has to create an Exim log
2153 file, it does so in a subprocess that runs as exim:exim so as to get the
2154 ownership right at creation (otherwise, other Exim processes might see
2155 the file with the wrong ownership). There was no test for failure of this
2156 fork() call, which would lead to the process getting stuck as it waited
2157 for a non-existent subprocess. Forks do occasionally fail when resources
2158 run out. I reviewed all the other calls to fork(); they all seem to check
2159 for failure.
2160
f9b9210e
PH
2161PH/20 When checking for unexpected SMTP input at connect time (before writing
2162 the banner), Exim was not dealing correctly with a non-positive return
2163 from the read() function. If the client had disconnected by this time,
2164 the result was a log entry for a synchronization error with an empty
2165 string after "input=" when read() returned zero. If read() returned -1
2166 (an event I could not check), uninitialized data bytes were printed.
2167 There were reports of junk text (parts of files, etc) appearing after
2168 "input=".
2169
54cdb463
PH
2170PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2171
cf00dad6
PH
2172PH/22 Added support for macro redefinition, and (re)definition in between
2173 driver and ACL definitions.
2174
acb1b346
PH
2175PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2176 forgetting to use the resulting value; it was using the unexpanded value.
2177
c5ddb310
PH
2178PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2179 hadn't been configured. The fix is from Juergen Kreileder, who
2180 understands it better than I do:
2181
2182 "Here's what I see happening with three configured cyrus_sasl
2183 authenticators configured (plain, login, cram-md5):
2184
2185 On startup auth_cyrus_sasl_init() gets called for each of these.
2186 This means three calls to sasl_listmech() without a specified mech_list.
2187 => SASL tests which mechs of all available mechs actually work
2188 => three warnings about OTP not working
2189 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2190
2191 With the patch, sasl_listmech() also gets called three times. But now
2192 SASL's mech_list option is set to the server_mech specified in the the
2193 authenticator. Or in other words, the answer from sasl_listmech()
2194 gets limited to just the mech you're testing for (which is different
2195 for each call.)
2196 => the return list contains just 'plain' or 'login', 'cram-md5' or
2197 nothing depending on the value of ob->server_mech.
2198
2199 I've just tested the patch: Authentication still works fine,
2200 unavailable mechs specified in the exim configuration are still
2201 caught, and the auth.log warnings about OTP are gone."
2202
31619da6
PH
2203PH/25 When debugging is enabled, the contents of the command line are added
2204 to the debugging output, even when log_selector=+arguments is not
2205 specified.
2206
bebaf0fc
PH
2207PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2208 answer is "GNU", and only if the return is "GNU/something" is the answer
2209 "Linux".
2210
475fe28a
PH
2211PH/27 $acl_verify_message is now set immediately after the failure of a
2212 verification in an ACL, and so is available in subsequent modifiers. In
2213 particular, the message can be preserved by coding like this:
2214
2215 warn !verify = sender
2216 set acl_m0 = $acl_verify_message
2217
2218 Previously, $acl_verify_message was set only while expanding "message"
2219 and "log_message" when a very denied access.
2220
7e8bec7a
PH
2221PH/28 Modified OS/os.c-Linux with
2222
2223 -#ifndef OS_LOAD_AVERAGE
2224 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2225
2226 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2227 nomenclature these days.)
2228
e4a89c47
PH
2229PH/29 Installed patch from the Sieve maintainer that adds the options
2230 sieve_useraddress and sieve_subaddress to the redirect router.
2231
5ca2a9a1
PH
2232PH/30 In these circumstances:
2233 . Two addresses routed to the same list of hosts;
2234 . First host does not offer TLS;
2235 . First host accepts first address;
2236 . First host gives temporary error to second address;
2237 . Second host offers TLS and a TLS session is established;
2238 . Second host accepts second address.
2239 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2240 and peerdn, if requested) that were in fact used only for the second
2241 address.
7e8bec7a 2242
c688b954
PH
2243PH/31 When doing a callout as part of verifying an address, Exim was not paying
2244 attention to any local part prefix or suffix that was matched by the
2245 router that accepted the address. It now behaves in the same way as it
2246 does for delivery: the affixes are removed from the local part unless
2247 rcpt_include_affixes is set on the transport.
2248
fed77020
PH
2249PH/32 Add the sender address, as F=<...>, to the log line when logging a
2250 timeout during the DATA phase of an incoming message.
2251
7fe1560f
PH
2252PH/33 Sieve envelope tests were broken for match types other than :is. I have
2253 applied a patch sanctioned by the Sieve maintainer.
c688b954 2254
ebb6e6d5
PH
2255PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2256 the uid or gid is negative. A case of a negative gid caused this to be
2257 noticed. The fix allows for either to be negative.
2258
9c4e8f60
PH
2259PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2260 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2261 overlooked.
2262
2263PH/36 The change PH/12 above was broken. Fixed it.
2264
d7174846
PH
2265PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2266 the grounds that routing the same address twice would always produce the
2267 same answer. This might have been true once, but it is certainly no
2268 longer true now. Routing a child address may depend on the previous
2269 routing that produced that child. Some complicated redirection strategies
2270 went wrong when messages had multiple recipients, and made Exim's
2271 behaviour dependent on the order in which the addresses were given.
2272
2273 I have moved the duplicate checking until after the routing is complete.
2274 Exim scans the addresses that are assigned to local and remote
2275 transports, and removes any duplicates. This means that more work will be
2276 done, as duplicates will always all be routed, but duplicates are
2277 presumably rare, so I don't expect this is of any significance.
2278
2279 For deliveries to pipes, files, and autoreplies, the duplicate checking
2280 still happens during the routing process, since they are not going to be
2281 routed further.
2282
cfe75fc3
PH
2283PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2284 It corrects a timeout issue with spamd. This is Ian's comment: "The
2285 background is that sometimes spamd either never reads data from a
2286 connection it has accepted, or it never writes response data. The exiscan
2287 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2288 blindly assumes that writes won't block so it may never time out."
2289
be22d70e
PH
2290PH/39 Allow G after quota size as well as K and M.
2291
0612b098
PH
2292PH/40 The value set for $authenticated_id in an authenticator may not contain
2293 binary zeroes or newlines because the value is written to log lines and
2294 to spool files. There was no check on this. Now the value is run through
2295 the string_printing() function so that such characters are converted to
2296 printable escape sequences.
2297
2e0c1448
PH
2298PH/41 $message_linecount is a new variable that contains the total number of
2299 lines in the message. Compare $body_linecount, which is the count for the
2300 body only.
2301
447d236c
PH
2302PH/42 Exim no longer gives details of delivery errors for specific addresses in
2303 bounce and delay warning messages, except in certain special cases, which
2304 are as follows:
2305
2306 (a) An SMTP error message from a remote host;
2307 (b) A message specified in a :fail: redirection;
2308 (c) A message specified in a "fail" command in a system filter;
2309 (d) A message specified in a FAIL return from the queryprogram router;
2310 (e) A message specified by the cannot_route_message router option.
2311
2312 In these cases only, Exim does include the error details in bounce and
2313 warning messages. There are also a few cases where bland messages such
2314 as "unrouteable address" or "local delivery error" are given.
2315
d20976dc
PH
2316PH/43 $value is now also set for the "else" part of a ${run expansion.
2317
f656d135
PH
2318PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2319 being worked on, but at least Exim now implements the latest version to
2320 play with."
2321
2e2a30b4
PH
2322PH/45 In a pipe transport, although a timeout while waiting for the pipe
2323 process to complete was treated as a delivery failure, a timeout while
2324 writing the message to the pipe was logged, but erroneously treated as a
2325 successful delivery. Such timeouts include transport filter timeouts. For
2326 consistency with the overall process timeout, these timeouts are now
2327 treated as errors, giving rise to delivery failures by default. However,
2328 there is now a new Boolean option for the pipe transport called
2329 timeout_defer, which, if set TRUE, converts the failures into defers for
2330 both kinds of timeout. A transport filter timeout is now identified in
2331 the log output.
2332
9176e9f0
PH
2333PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2334 systems where "make" and "gmake" are different, calling "gmake" at top
2335 level broke things. I've arranged for the value of $(MAKE) to be passed
2336 from the Makefile to this script so that it can call the same version of
2337 "make".
2338
7982096b 2339
bbe902f0
PH
2340A note about Exim versions 4.44 and 4.50
2341----------------------------------------
2342
2343Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2344changes of various kinds. As a consequence, a big documentation update was
2345needed. This delayed the release for rather longer than seemed good, especially
2346in the light of a couple of (minor) security issues. Therefore, the changes
2347that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2348release. So 4.44 and 4.50 are in effect two different branches that both start
2349from 4.43.
2350
2351I have left the 4.50 change log unchanged; it contains all the changes since
23524.43. The change log for 4.44 is below; many of its items are identical to
2353those for 4.50. This seems to be the most sensible way to preserve the
2354historical information.
2355
2356
f7b63901 2357Exim version 4.50
495ae4b0
PH
2358-----------------
2359
5fe762f6
PH
2360 1. Minor wording change to the doc/README.SIEVE file.
2361
139059f6 2362 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2363 computation of the current number of files was incorrect.
495ae4b0 2364
7086e875
PH
2365 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2366 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2367 place.
2368
35af9f61
PH
2369 4. Give more explanation in the error message when the command for a transport
2370 filter fails to execute.
2371
b668c215
PH
2372 5. There are several places where Exim runs a non-Exim command in a
2373 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2374 was being done only for the command run by the queryprogram router. It is
2375 now done for all such subprocesses. The other cases are: ${run, transport
2376 filters, and the commands run by the lmtp and pipe transports.
2377
a494b1e1
PH
2378 6. Added CONFIGURE_GROUP build-time option.
2379
2380 7. Some older OS have a limit of 256 on the maximum number of file
2381 descriptors. Exim was using setrlimit() to set 1000 as a large value
2382 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2383 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2384
c5fcb476
PH
2385 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2386 was an oversight, and furthermore, ever since the addition of extra
2387 controls (e.g. 4.43/32), the checks on when to allow different forms of
2388 "control" were broken. There should now be diagnostics for all cases when a
2389 control that does not make sense is encountered.
2390
69358f02
PH
2391 9. Added the /retain_sender option to "control=submission".
2392
5be20824
PH
239310. $recipients is now available in the predata ACL (oversight).
2394
eb2c0248
PH
239511. Tidy the search cache before the fork to do a delivery from a message
2396 received from the command line. Otherwise the child will trigger a lookup
2397 failure and thereby defer the delivery if it tries to use (for example) a
2398 cached ldap connection that the parent has called unbind on.
2399
2a3eea10
PH
240012. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2401 of $address_data from the recipient verification was clobbered by the
2402 sender verification.
2403
240413. The value of address_data from a sender verification is now available in
2405 $sender_address_data in subsequent conditions in the ACL statement.
2406
23c7ff99
PH
240714. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2408
4deaf07d
PH
240915. Added a new option "connect=<time>" to callout options, to set a different
2410 connection timeout.
2411
926e1192
PH
241216. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2413 was its contents. (It was OK if the option was not defined at all.)
2414
650edc6f
PH
241517. A "Completed" log line is now written for messages that are removed from
2416 the spool by the -Mrm option.
2417
2c7db3f5
PH
241818. New variables $sender_verify_failure and $recipient_verify_failure contain
2419 information about exactly what failed.
2420
3d235903
PH
242119. Added -dd to debug only the daemon process.
2422
7c7ad977
PH
242320. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2424 handles timeouts, both on the server side and network timeouts. Renamed the
2425 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2426
981756db
PH
242721. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2428 It is now set to "smtps".
2429
d4eb88df
PH
243022. $host_address is now set to the target address during the checking of
2431 ignore_target_hosts.
2432
243323. When checking ignore_target_hosts for an ipliteral router, no host name was
2434 being passed; this would have caused $sender_host_name to have been used if
2435 matching the list had actually called for a host name (not very likely,
2436 since this list is usually IP addresses). A host name is now passed as
2437 "[x.x.x.x]".
2438
7d468ab8
PH
243924. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2440 code that specifies a non-restarting handler (typically sigaction() in
2441 modern systems) in an attempt to fix a rare and obscure crash bug.
2442
244325. Narrowed the window for a race in the daemon that could cause it to ignore
2444 SIGCHLD signals. This is not a major problem, because they are used only to
2445 wake it up if nothing else does.
2446
62c0818f
PH
244726. A malformed maildirsize file could cause Exim to calculate negative values
2448 for the mailbox size or file count. Odd effects could occur as a result.
2449 The maildirsize information is now recalculated if the size or filecount
2450 end up negative.
2451
26034054
PH
245227. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2453 support for a long time. Removed HAVE_SYS_VFS_H.
2454
af66f652
PH
245528. Installed the latest version of exipick from John Jetmore.
2456
90af77f4
PH
245729. In an address list, if the pattern was not a regular expression, an empty
2458 subject address (from a bounce message) matched only if the pattern was an
2459 empty string. Non-empty patterns were not even tested. This was the wrong
2460 because it is perfectly reasonable to use an empty address as part of a
2461 database query. An empty address is now tested by patterns that are
2462 lookups. However, all the other forms of pattern expect the subject to
2463 contain a local part and a domain, and therefore, for them, an empty
2464 address still always fails if the pattern is not itself empty.
2465
d8ef3577
PH
246630. Exim went into a mad DNS loop when attempting to do a callout where the
2467 host was specified on an smtp transport, and looking it up yielded more
2468 than one IP address.
2469
5cb8cbc6
PH
247031. Re-factored the code for checking spool and log partition space into a
2471 function that finds that data and another that does the check. The former
2472 is then used to implement four new variables: $spool_space, $log_space,
2473 $spool_inodes, and $log_inodes.
2474
14702f5b
PH
247532. The RFC2047 encoding function was originally intended for short strings
2476 such as real names; it was not keeping to the 75-character limit for
2477 encoded words that the RFC imposes. It now respects the limit, and
2478 generates multiple encoded words if necessary. To be on the safe side, I
2479 have increased the buffer size for the ${rfc2047: expansion operator from
2480 1024 to 2048 bytes.
2481
063b1e99
PH
248233. It is now permitted to omit both strings after an "if" condition; if the
2483 condition is true, the result is "true". As before, when the second string
2484 is omitted, a false condition yields an empty string. This makes it less
2485 cumbersome to write custom ACL and router conditions.
2486
652e1b65
PH
248734. Failure to deliver a bounce message always caused it to be frozen, even if
2488 there was an errors_to setting on the router. The errors_to setting is now
2489 respected.
2490
6f0c9a4f
PH
249135. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2492 canonical form (fully expanded) before being placed in
2493 $sender_host_address.
2494
33397d19
PH
249536. The table in the code that translates DNS record types into text (T_A to
2496 "A" for instance) was missing entries for NS and CNAME. It is just possible
2497 that this could have caused confusion if both these types were looked up
2498 for the same domain, because the text type is used as part of Exim's
2499 per-process caching. But the chance of anyone hitting this buglet seems
2500 very small.
2501
7bb56e1f
PH
250237. The dnsdb lookup has been extended in a number of ways.
2503
2504 (1) There is a new type, "zns", which walks up the domain tree until it
2505 finds some nameserver records. It should be used with care.
2506
ea3bc19b
PH
2507 (2) There is a new type, "mxh", which is like "mx" except that it returns
2508 just the host names, not the priorities.
2509
2510 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2511 looked up. The behaviour when one of the lookups defers can be
2512 controlled by a keyword.
7bb56e1f 2513
ea3bc19b 2514 (4) It is now possible to specify the separator character for use when
7bb56e1f 2515 multiple records are returned.
33397d19 2516
0bcb2a0e
PH
251738. The dnslists ACL condition has been extended: it is now possible to supply
2518 a list of IP addresses and/or domains to be looked up in a particular DNS
2519 domain.
2520
2ac0e484
PH
252139. Added log_selector=+queue_time_overall.
2522
4e1fde53
PH
252340. When running the queue in the test harness, wait just a tad after forking a
2524 delivery process, to get repeatability of debugging output.
2525
de365ded
PH
252641. Include certificate and key file names in error message when GnuTLS fails
2527 to set them up, because the GnuTLS error message doesn't include the name
2528 of the failing file when there is a problem reading it.
2529
f05da2e8
PH
253042. Allow both -bf and -bF in the same test run.
2531
d6453af2
PH
253243. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2533
f7b63901
PH
253444. The "Exiscan patch" is now merged into the mainline Exim source.
2535
253645. Sometimes the final signoff response after QUIT could fail to get
2537 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2538 < 0 before doing a fflush(). This bug looks as though it goes back to the
2539 introduction of TLS in release 3.20, but "sometimes" must have been rare
2540 because the tests only now provoked it.
2541
a444213a
PH
254246. Reset the locale to "C" after calling embedded Perl, in case it was changed
2543 (this can affect the format of dates).
2544
0ec020ea
PH
254547. exim_tidydb, when checking for the continued existence of a message for
2546 which it has found a message-specific retry record, was not finding
2547 messages that were in split spool directories. Consequently, it was
2548 deleting retry records that should have stayed in existence.
2549
b1206957
PH
255048. Steve fixed some bugs in eximstats.
2551
255249. The SPA authentication driver was not abandoning authentication and moving
2553 on to the next authenticator when an expansion was forced to fail,
2554 contradicting the general specification for all authenticators. Instead it
2555 was generating a temporary error. It now behaves as specified.
2556
26dd5a95
PH
255750. The default ordering of permitted cipher suites for GnuTLS was pessimal
2558 (the order specifies the preference for clients). The order is now AES256,
2559 AES128, 3DES, ARCFOUR128.
2560
343b2385
PH
256151. Small patch to Sieve code - explicitly set From: when generating an
2562 autoreply.
2563
1c5466b9
PH
256452. Exim crashed if a remote delivery caused a very long error message to be
2565 recorded - for instance if somebody sent an entire SpamAssassin report back
2566 as a large number of 550 error lines. This bug was coincidentally fixed by
2567 increasing the size of one of Exim's internal buffers (big_buffer) that
2568 happened as part of the Exiscan merge. However, to be on the safe side, I
2569 have made the code more robust (and fixed the comments that describe what
2570 is going on).
2571
55ee9ee3
PH
257253. Now that there can be additional text after "Completed" in log lines (if
2573 the queue_time_overall log selector is set), a one-byte patch to exigrep
2574 was needed to allow it to recognize "Completed" as not the last thing in
2575 the line.
2576
d38f8232
PH
257754. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2578 patch that reportedly fixes this has been added. I am not expert enough to
2579 create a test for it. This is what the patch creator wrote:
2580
2581 "I found a little strange behaviour of ldap code when working with
2582 Windows 2003 AD Domain, where users was placed in more than one
2583 Organization Units. When I tried to give exim partial DN, the exit code
2584 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2585 But simultaneously result of request was absolutely normal ldap result,
2586 so I produce this patch..."
2587
3295e65b
PH
2588 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2589 REFERENCE, so I have modified the code to exclude the patch when that macro
2590 is not defined.
2591
7102e136
PH
259255. Some experimental protocols are using DNS PTR records for new purposes. The
2593 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2594 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2595 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2596 CAN-2005-0021
7102e136 2597
3ca0ba97
PH
259856. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2599
c2bcbe20
PH
260057. Double the size of the debug message buffer (to 2048) so that more of very
2601 long debug lines gets shown.
2602
18ce445d
PH
260358. The exicyclog utility now does better if the number of log files to keep
2604 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2605
1f5b4c3d
PH
260659. Two changes related to the smtp_active_hostname option:
2607
2608 (1) $smtp_active_hostname is now available as a variable.
2609 (2) The default for smtp_banner uses $smtp_active_hostname instead
2610 of $primary_hostname.
2611
b975ba52
PH
261260. The host_aton() function is supposed to be passed a string that is known
2613 to be a valid IP address. However, in the case of IPv6 addresses, it was
2614 not checking this. This is a hostage to fortune. Exim now panics and dies
2615 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2616 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2617 components; fortuitously, this particular loophole had already been fixed
2618 by change 4.50/55 above.
2619
2620 If there are any other similar loopholes, the new check in host_aton()
2621 itself should stop them being exploited. The report I received stated that
2622 data on the command line could provoke the exploit when Exim was running as
2623 exim, but did not say which command line option was involved. All I could
2624 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2625 running as the user.
ea3a6f44 2626 CAN-2005-0021
85b87bc2
PH
2627
262861. There was a buffer overflow vulnerability in the SPA authentication code
2629 (which came originally from the Samba project). I have added a test to the
2630 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2631 CAN-2005-0022
b975ba52 2632
17ffcae7
PH
263362. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2634 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2635
d95f9fdb
PH
263663. The daemon start-up calls getloadavg() while still root for those OS that
2637 need the first call to be done as root, but it missed one case: when
2638 deliver_queue_load_max is set with deliver_drop_privilege. This is
2639 necessary for the benefit of the queue runner, because there is no re-exec
2640 when deliver_drop_privilege is set.
2641
86b8287f
PH
264264. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2643 This has been fixed.
2644
60dc5e56
PH
264565. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2646 was in use, was not putting the data itself into the right store pool;
2647 consequently, it could be overwritten for a subsequent message in the same
2648 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2649 the caching.)
2650
533244af
PH
265166. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2652
a5a28604
PH
265367. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2654 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2655 the function were treating the return as a boolean value, which happened to
2656 work because 0=false and not-0=true, but is not correct code.
2657
7e634d24
PH
265868. The host_aton() function was not handling scoped IPv6 addresses (those
2659 with, for example, "%eth0" on the end) correctly.
2660
3e11c26b
PH
266169. Fixed some compiler warnings in acl.c for the bitmaps specified with
2662 negated items (that is, ~something) in unsigned ints. Some compilers
2663 apparently mutter when there is no cast.
2664
6729cf78
PH
266570. If an address verification called from an ACL failed, and did not produce a
2666 user-specific message (i.e. there was only a "system" message), nothing was
2667 put in $acl_verify_message. In this situation, it now puts the system
2668 message there.
2669
00f00ca5
PH
267071. Change 4.23/11 added synchronization checking at the start of an SMTP
2671 session; change 4.31/43 added the unwanted input to the log line - except
2672 that it did not do this in the start of session case. It now does.
2673
c9bdd01c
PH
267472. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2675 This is wrong and can cause the other end to generate a synchronization
2676 error if it is another Exim or anything else that does the synchronization
2677 check. A QUIT command is no longer sent after a timeout.
2678
d43194df
PH
267973. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2680 during host lookups.
2681
fe5b5d0b
PH
268274. The defer_ok option of callout verification was not working if it was used
2683 when verifying addresses in header lines, that is, for this case:
2684
2685 verify = header_sender/callout=defer_ok
2686
76a2d7ba
PH
268775. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2688 those file descriptors could be used for SMTP connections. If anything
2689 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2690 could be sent to the SMTP client, causing chaos. The daemon now opens
2691 stdin, stdout, and stderr to /dev/null when it puts itself into the
2692 background.
2693
269476. Arrange for output from Perl's "warn" command to be written to Exim's main
2695 log by default. The user can override this with suitable Perl magic.
2696
04f7d5b9
PH
269777. The use of log_message on a "discard" ACL verb, which is supposed to add to
2698 the log message when discard triggers, was not working for the DATA ACL or
2699 for the non-SMTP ACL.
2700
bc60667e
PH
270178. Error message wording change in sieve.c.
2702
bb6e88ff
PH
270379. If smtp_accept_max_per_host was set, the number of connections could be
2704 restricted to fewer than expected, because the daemon was trying to set up
2705 a new connection before checking whether the processes handling previous
2706 connections had finished. The check for completed processes is now done
2707 earlier. On busy systems, this bug wouldn't be noticed because something
2708 else would have woken the daemon, and it would have reaped the completed
2709 process earlier.
2710
1e70f85b
PH
271180. If a message was submitted locally by a user whose login name contained one
2712 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2713 It caused a spool format error. I have fixed the spool reading code. A
2714 related problem was that the "from" clause in the Received: line became
2715 illegal because of the space(s). It is now covered by ${quote_local_part.
2716
271781. Included the latest eximstats from Steve (adds average sizes to HTML Top
2718 tables).
2719
4e01f9d6
PH
272082. Updated OS/Makefile-AIX as per message from Mike Meredith.
2721
1ee1cef2
PH
272283. Patch from Sieve maintainer to fix unterminated string problem in
2723 "vacation" handling.
2724
6e2b4ccc
PH
272584. Some minor changes to the Linux configuration files to help with other
2726 OS variants using glibc.
2727
8e669ac1
PH
272885. One more patch for Sieve to update vacation handling to latest spec.
2729
495ae4b0 2730
bbe902f0
PH
2731----------------------------------------------------
2732See the note above about the 4.44 and 4.50 releases.
2733----------------------------------------------------
2734
2735
2736Exim version 4.44
2737-----------------
2738
2739 1. Change 4.43/35 introduced a bug that caused file counts to be
2740 incorrectly computed when quota_filecount was set in an appendfile
2741 transport
2742
2743 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2744 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2745 place.
2746
2747 3. Give more explanation in the error message when the command for a transport
2748 filter fails to execute.
2749
2750 4. There are several places where Exim runs a non-Exim command in a
2751 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2752 was being done only for the command run by the queryprogram router. It is
2753 now done for all such subprocesses. The other cases are: ${run, transport
2754 filters, and the commands run by the lmtp and pipe transports.
2755
2756 5. Some older OS have a limit of 256 on the maximum number of file
2757 descriptors. Exim was using setrlimit() to set 1000 as a large value
2758 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2759 systems. I've change it so that if it can't get 1000, it tries for 256.
2760
2761 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2762 was an oversight, and furthermore, ever since the addition of extra
2763 controls (e.g. 4.43/32), the checks on when to allow different forms of
2764 "control" were broken. There should now be diagnostics for all cases when a
2765 control that does not make sense is encountered.
2766
2767 7. $recipients is now available in the predata ACL (oversight).
2768
2769 8. Tidy the search cache before the fork to do a delivery from a message
2770 received from the command line. Otherwise the child will trigger a lookup
2771 failure and thereby defer the delivery if it tries to use (for example) a
2772 cached ldap connection that the parent has called unbind on.
2773
2774 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2775 of $address_data from the recipient verification was clobbered by the
2776 sender verification.
2777
277810. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2779 was its contents. (It was OK if the option was not defined at all.)
2780
278111. A "Completed" log line is now written for messages that are removed from
2782 the spool by the -Mrm option.
2783
278412. $host_address is now set to the target address during the checking of
2785 ignore_target_hosts.
2786
278713. When checking ignore_target_hosts for an ipliteral router, no host name was
2788 being passed; this would have caused $sender_host_name to have been used if
2789 matching the list had actually called for a host name (not very likely,
2790 since this list is usually IP addresses). A host name is now passed as
2791 "[x.x.x.x]".
2792
279314. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2794 code that specifies a non-restarting handler (typically sigaction() in
2795 modern systems) in an attempt to fix a rare and obscure crash bug.
2796
279715. Narrowed the window for a race in the daemon that could cause it to ignore
2798 SIGCHLD signals. This is not a major problem, because they are used only to
2799 wake it up if nothing else does.
2800
280116. A malformed maildirsize file could cause Exim to calculate negative values
2802 for the mailbox size or file count. Odd effects could occur as a result.
2803 The maildirsize information is now recalculated if the size or filecount
2804 end up negative.
2805
280617. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2807 support for a long time. Removed HAVE_SYS_VFS_H.
2808
ea3a6f44 280918. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2810
281119. Allow an empty sender to be matched against a lookup in an address list.
2812 Previously the only cases considered were a regular expression, or an
2813 empty pattern.
2814
281520. Exim went into a mad DNS lookup loop when doing a callout where the
2816 host was specified on the transport, if the DNS lookup yielded more than
2817 one IP address.
2818
ea3a6f44
NM
281921. The RFC2047 encoding function was originally intended for short strings
2820 such as real names; it was not keeping to the 75-character limit for
2821 encoded words that the RFC imposes. It now respects the limit, and
2822 generates multiple encoded words if necessary. To be on the safe side, I
2823 have increased the buffer size for the ${rfc2047: expansion operator from
2824 1024 to 2048 bytes.
bbe902f0 2825
ea3a6f44
NM
282622. Failure to deliver a bounce message always caused it to be frozen, even if
2827 there was an errors_to setting on the router. The errors_to setting is now
2828 respected.
bbe902f0
PH
2829
283023. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2831 canonical form (fully expanded) before being placed in
2832 $sender_host_address.
2833
283424. Updated eximstats to version 1.33
2835
ea3a6f44
NM
283625. Include certificate and key file names in error message when GnuTLS fails
2837 to set them up, because the GnuTLS error message doesn't include the name
2838 of the failing file when there is a problem reading it.
bbe902f0
PH
2839
284026. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2841 As per change 25.
bbe902f0 2842
ea3a6f44
NM
284327. Reset the locale to "C" after calling embedded Perl, in case it was changed
2844 (this can affect the format of dates).
bbe902f0 2845
ea3a6f44
NM
284628. exim_tidydb, when checking for the continued existence of a message for
2847 which it has found a message-specific retry record, was not finding
2848 messages that were in split spool directories. Consequently, it was
2849 deleting retry records that should have stayed in existence.
bbe902f0
PH
2850
285129. eximstats updated to version 1.35
2852 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2853 1.35 - bugfix such that pie charts by volume are generated correctly
2854
ea3a6f44
NM
285530. The SPA authentication driver was not abandoning authentication and moving
2856 on to the next authenticator when an expansion was forced to fail,
2857 contradicting the general specification for all authenticators. Instead it
2858 was generating a temporary error. It now behaves as specified.
bbe902f0 2859
ea3a6f44
NM
286031. The default ordering of permitted cipher suites for GnuTLS was pessimal
2861 (the order specifies the preference for clients). The order is now AES256,
2862 AES128, 3DES, ARCFOUR128.
bbe902f0 2863
ea3a6f44
NM
286431. Small patch to Sieve code - explicitly set From: when generating an
2865 autoreply.
bbe902f0 2866
ea3a6f44
NM
286732. Exim crashed if a remote delivery caused a very long error message to be
2868 recorded - for instance if somebody sent an entire SpamAssassin report back
2869 as a large number of 550 error lines. This bug was coincidentally fixed by
2870 increasing the size of one of Exim's internal buffers (big_buffer) that
2871 happened as part of the Exiscan merge. However, to be on the safe side, I
2872 have made the code more robust (and fixed the comments that describe what
2873 is going on).
bbe902f0 2874
ea3a6f44
NM
287533. Some experimental protocols are using DNS PTR records for new purposes. The
2876 keys for these records are domain names, not reversed IP addresses. The
2877 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2878 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2879 CAN-2005-0021
2880
ea3a6f44
NM
288134. The host_aton() function is supposed to be passed a string that is known
2882 to be a valid IP address. However, in the case of IPv6 addresses, it was
2883 not checking this. This is a hostage to fortune. Exim now panics and dies
2884 if the condition is not met. A case was found where this could be provoked
2885 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2886 components; fortuitously, this particular loophole had already been fixed
2887 by change 4.50/55 or 4.44/33 above.
2888
2889 If there are any other similar loopholes, the new check in host_aton()
2890 itself should stop them being exploited. The report I received stated that
2891 data on the command line could provoke the exploit when Exim was running as
2892 exim, but did not say which command line option was involved. All I could
2893 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2894 running as the user.
bbe902f0
PH
2895 CAN-2005-0021
2896
ea3a6f44
NM
289735. There was a buffer overflow vulnerability in the SPA authentication code
2898 (which came originally from the Samba project). I have added a test to the
2899 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2900 CAN-2005-0022
2901
ea3a6f44
NM
290236. The daemon start-up calls getloadavg() while still root for those OS that
2903 need the first call to be done as root, but it missed one case: when
2904 deliver_queue_load_max is set with deliver_drop_privilege. This is
2905 necessary for the benefit of the queue runner, because there is no re-exec
2906 when deliver_drop_privilege is set.
bbe902f0 2907
ea3a6f44
NM
290837. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2909 was in use, was not putting the data itself into the right store pool;
2910 consequently, it could be overwritten for a subsequent message in the same
2911 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2912 the caching.)
bbe902f0 2913
ea3a6f44
NM
291438. Sometimes the final signoff response after QUIT could fail to get
2915 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2916 < 0 before doing a fflush(). This bug looks as though it goes back to the
2917 introduction of TLS in release 3.20, but "sometimes" must have been rare
2918 because the tests only now provoked it.
bbe902f0
PH
2919
2920
495ae4b0
PH
2921Exim version 4.43
2922-----------------
2923
2924 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2925 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2926 Now it returns an integer. A number of calls were still expecting a T/F
2927 return. Fortuitously, in all cases, the tests worked in OK situations,
2928 which is the norm. However, things would have gone wrong on any write
2929 failures on the smtp file descriptor. This function is used when sending
2930 messages over SMTP and also when doing verify callouts.
2931
2932 2. When Exim is called to do synchronous delivery of a locally submitted
2933 message (the -odf or -odi options), it no longer closes stderr before doing
2934 the delivery.
2935
2936 3. Implemented the mua_wrapper option.
2937
2938 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2939
2940 5. Implemented the functions header_remove(), header_testname(),
2941 header_add_at_position(), and receive_remove_recipient(), and exported them
2942 to local_scan().
2943
2944 6. If an ACL "warn" statement specified the addition of headers, Exim already
2945 inserted X-ACL-Warn: at the start if there was no header name. However, it
2946 was not making this test for the second and subsequent header lines if
2947 there were newlines in the string. This meant that an invalid header could
2948 be inserted if Exim was badly configured.
2949
2950 7. Allow an ACL "warn" statement to add header lines at the start or after all
2951 the Received: headers, as well as at the end.
2952
2953 8. Added the rcpt_4xx retry error code.
2954
2955 9. Added postmaster_mailfrom=xxx to callout verification option.
2956
295710. Added mailfrom=xxxx to the callout verification option, for verify=
2958 header_sender only.
2959
296011. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2961 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2962
296312. Inserted some casts to stop certain compilers warning when using pointer
2964 differences as field lengths or precisions in printf-type calls (mostly
2965 affecting debugging statements).
2966
296713. Added optional readline() support for -be (dynamically loaded).
2968
296914. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2970 same clock tick as a message's arrival, so that its received time was the
2971 same as the "first fail" time on the retry record, and that message
2972 remained on the queue past the ultimate address timeout, every queue runner
2973 would try a delivery (because it was past the ultimate address timeout) but
2974 after another failure, the ultimate address timeout, which should have then
2975 bounced the address, did not kick in. This was a "< instead of <=" error;
2976 in most cases the first failure would have been in the next clock tick
2977 after the received time, and all would be well.
2978
297915. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2980 being recognized when the domain list was tested by the match_domain
2981 condition in an expansion string.
2982
298316. Added the ${str2b64: operator.
2984
298517. Exim was always calling setrlimit() to set a large limit for the number of
2986 processes, without checking whether the existing limit was already
2987 adequate. (It did check for the limit on file descriptors.) Furthermore,
2988 errors from getrlimit() and setrlimit() were being ignored. Now they are
2989 logged to the main and panic logs, but Exim does carry on, to try to do its
2990 job under whatever limits there are.
2991
299218. Imported PCRE 5.0.
2993
299419. Trivial typo in log message " temporarily refused connection" (the leading
2995 space).
2996
299720. If the log selector return_path_on_delivery was set and an address was
2998 redirected to /dev/null, the delivery process crashed because it assumed
2999 that a return path would always be set for a "successful" delivery. In this
3000 case, the whole delivery is bypassed as an optimization, and therefore no
3001 return path is set.
3002
300321. Internal re-arrangement: the function for sending a challenge and reading
3004 a response while authentication was assuming a zero-terminated challenge
3005 string. It's now changed to take a pointer and a length, to allow for
3006 binary data in such strings.
3007
300822. Added the cyrus_sasl authenticator (code supplied by MBM).
3009
301023. Exim was not respecting finduser_retries when seeking the login of the
3011 uid under which it was called; it was always trying 10 times. (The default
3012 setting of finduser_retries is zero.) Also, it was sleeping after the final
3013 failure, which is pointless.
3014
301524. Implemented tls_on_connect_ports.
3016
301725. Implemented acl_smtp_predata.
3018
301926. If the domain in control=submission is set empty, Exim assumes that the
3020 authenticated id is a complete email address when it generates From: or
3021 Sender: header lines.
3022
302327. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3024 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3025 chown and chgrp in /bin and hostname in /usr/bin.
3026
302728. Exim was keeping the "process log" file open after each use, just as it
3028 does for the main log. This opens the possibility of it remaining open for
3029 long periods when the USR1 signal hits a daemon. Occasional processlog
3030 errors were reported, that could have been caused by this. Anyway, it seems
3031 much more sensible not to leave this file open at all, so that is what now
3032 happens.
3033
303429. The long-running daemon process does not normally write to the log once it
3035 has entered its main loop, and it closes the log before doing so. This is
3036 so that log files can straightforwardly be renamed and moved. However,
3037 there are a couple of unusual error situations where the daemon does write
3038 log entries, and I had neglected to close the log afterwards.
3039
304030. The text of an SMTP error response that was received during a remote
3041 delivery was being truncated at 512 bytes. This is too short for some of
3042 the long messages that one sometimes sees. I've increased the limit to
3043 1024.
3044
304531. It is now possible to make retry rules that apply only when a message has a
3046 specific sender, in particular, an empty sender.
3047
304832. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3049 it possible to be selective about when SMTP synchronization is enforced.
3050
305133. Added "control = caseful_local_part" and "control = "caselower_local_part".
3052
305332. Implemented hosts_connection_nolog.
3054
305533. Added an ACL for QUIT.
3056
305734. Setting "delay_warning=" to disable warnings was not working; it gave a
3058 syntax error.
3059
306035. Added mailbox_size and mailbox_filecount to appendfile.
3061
306236. Added control = no_multiline_responses to ACLs.
3063
306437. There was a bug in the logic of the code that waits for the clock to tick
3065 in the case where the clock went backwards by a substantial amount such
3066 that the microsecond fraction of "now" was more than the microsecond
3067 fraction of "then" (but the whole seconds number was less).
3068
306938. Added support for the libradius Radius client library this is found on
3070 FreeBSD (previously only the radiusclient library was supported).
3071
3072
3073Exim version 4.42
3074-----------------
3075
3076 1. When certain lookups returned multiple values in the form name=value, the
3077 quoting of the values was not always being done properly. Specifically:
3078 (a) If the value started with a double quote, but contained no whitespace,
3079 it was not quoted.
3080 (b) If the value contained whitespace other than a space character (i.e.
3081 tabs or newlines or carriage returns) it was not quoted.
3082 This fix has been applied to the mysql and pgsql lookups by writing a
3083 separate quoting function and calling it from the lookup code. The fix
3084 should probably also be applied to nisplus, ibase and oracle lookups, but
3085 since I cannot test any of those, I have not disturbed their existing code.
3086
3087 2. A hit in the callout cache for a specific address caused a log line with no
3088 reason for rejecting RCPT. Now it says "Previous (cached) callout
3089 verification failure".
3090
3091 3. There was an off-by-one bug in the queryprogram router. An over-long
3092 return line was truncated at 256 instead of 255 characters, thereby
3093 overflowing its buffer with the terminating zero. As well as fixing this, I
3094 have increased the buffer size to 1024 (and made a note to document this).
3095
3096 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3097 when Exim is waiting for an SMTP response from a remote server, Exim
3098 restarts its select() call on the socket, thereby resetting its timeout.
3099 This is not a problem when such interrupts are rare. Somebody set up a cron
3100 job to run exiwhat every 2 minutes, which is less than the normal select()
3101 timeout (5 or 10 minutes). This meant that the select() timeout never
3102 kicked in because it was always reset. I have fixed this by comparing the
3103 time when an interrupt arrives with the time at the start of the first call
3104 to select(). If more time than the timeout has elapsed, the interrupt is
3105 treated as a timeout.
3106
3107 5. Some internal re-factoring in preparation for the addition of Sieve
3108 extensions (by MH). In particular, the "personal" test is moved to a
3109 separate function, and given an option for scanning Cc: and Bcc: (which is
3110 not set for Exim filters).
3111
3112 6. When Exim created an email address using the login of the caller as the
3113 local part (e.g. when creating a From: or Sender: header line), it was not
3114 quoting the local part when it contained special characters such as @.
3115
3116 7. Installed new OpenBSD configuration files.
3117
3118 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3119 try to make them clearer.
3120
3121 9. Callout options, other than the timeout value, were being ignored when
3122 verifying sender addresses in header lines. For example, when using
3123
3124 verify = header_sender/callout=no_cache
3125
3126 the cache was (incorrectly) being used.
3127
312810. Added a missing instance of ${EXE} to the exim_install script; this affects
3129 only the Cygwin environment.
3130
313111. When return_path_on_delivery was set as a log selector, if different remote
3132 addresses in the same message used different return paths and parallel
3133 remote delivery occurred, the wrong values would sometimes be logged.
3134 (Whenever a remote delivery process finished, the return path value from
3135 the most recently started remote delivery process was logged.)
3136
313712. RFC 3848 specifies standard names for the "with" phrase in Received: header
3138 lines when AUTH and/or TLS are in use. This is the "received protocol"
3139 field. Exim used to use "asmtp" for authenticated SMTP, without any
3140 indication (in the protocol name) for TLS use. Now it follows the RFC and
3141 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3142 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3143 names appear in log lines as well as in Received: header lines.
3144
314513. Installed MH's patches for Sieve to add the "copy" and "vacation"
3146 extensions, and comparison tests, and to fix some bugs.
3147
314814. Changes to the "personal" filter test:
3149
3150 (1) The test was buggy in that it was just doing the equivalent of
3151 "contains" tests on header lines. For example, if a user's address was
3152 anne@some.where, the "personal" test would incorrectly be true for
3153
3154 To: susanne@some.where
3155
3156 This test is now done by extracting each address from the header in turn,
3157 and checking the entire address. Other tests that are part of "personal"
3158 are now done using regular expressions (for example, to check local parts
3159 of addresses in From: header lines).
3160
3161 (2) The list of non-personal local parts in From: addresses has been
3162 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3163 taken from the Sieve specification recommendations.
3164
3165 (3) If the message contains any header line starting with "List-" it is
3166 treated as non-personal.
3167
3168 (4) The test for "circular" in the Subject: header line has been removed
3169 because it now seems ill-conceived.
3170
317115. Minor typos in src/EDITME comments corrected.
3172
317316. Installed latest exipick from John Jetmore.
3174
317517. If headers_add on a router specified a text string that was too long for
3176 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3177 of string_sprintf() is now avoided.
3178
317918. $message_body_size was not set (it was always zero) when running the DATA
3180 ACL and the local_scan() function.
3181
318219. For the "mail" command in an Exim filter, no default was being set for
3183 the once_repeat time, causing a random time value to be used if "once" was
3184 specified. (If the value happened to be <= 0, no repeat happened.) The
3185 default is now 0s, meaning "never repeat". The "vacation" command was OK
3186 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3187 (I found it when inspecting the code).
3188
318920. There is now an overall timeout for performing a callout verification. It
3190 defaults to 4 times the callout timeout, which applies to individual SMTP
3191 commands during the callout. The overall timeout applies when there is more
3192 than one host that can be tried. The timeout is checked before trying the
3193 next host. This prevents very long delays if there are a large number of
3194 hosts and all are timing out (e.g. when the network connections are timing
3195 out). The value of the overall timeout can be changed by specifying an
3196 additional sub-option for "callout", called "maxwait". For example:
3197
3198 verify = sender/callout=5s,maxwait=20s
3199
320021. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3201 to the end before writing, but this should make it even safer).
3202
320322. Exim was forgetting that it had advertised PIPELINING for the second and
3204 subsequent messages on an SMTP connection. It was also not resetting its
3205 memory on STARTTLS and an internal HELO.
3206
320723. When Exim logs an SMTP synchronization error within a session, it now
3208 records whether PIPELINING has been advertised or not.
3209
321024. Added 3 instances of "(long int)" casts to time_t variables that were being
3211 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3212 rather than long int.
3213
321425. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3215
321626. Added the never_mail option to autoreply.
3217
3218
3219Exim version 4.41
3220-----------------
3221
3222 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3223 crash if the getsockname() call failed; this can happen if a connection is
3224 closed very soon after it is established. The problem was simply in the
3225 order in which certain operations were done, causing Exim to try to write
3226 to the SMTP stream before it had set up the file descriptor. The bug has
3227 been fixed by making things happen in the correct order.
3228
3229
3230Exim version 4.40
3231-----------------
3232
3233 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3234 before the connection was closed, thus losing the rejection response.
3235
3236 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3237 some early Solaris releases, but causes trouble in current releases where
3238 socklen_t is defined.
3239
3240 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3241 always exist.
3242
3243 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3244 configured.
3245
3246 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3247 that releasing the top of it at the end releases what was used for sub-
3248 expansions (unless the block got too big). However, discard this block if
3249 the first thing is a variable or header, so that we can use its block when
3250 it is dynamic (useful for very large $message_headers, for example).
3251
3252 6. Lookups now cache *every* query, not just the most recent. A new, separate
3253 store pool is used for this. It can be recovered when all lookup caches are
3254 flushed. Lookups now release memory at the end of their result strings.
3255 This has involved some general refactoring of the lookup sources.
3256
3257 7. Some code has been added to the store_xxx() functions to reduce the amount
3258 of flapping under certain conditions.
3259
3260 8. log_incoming_interface used to affect only the <= reception log lines. Now
3261 it causes the local interface and port to be added to several more SMTP log
3262 lines, for example "SMTP connection from", and rejection lines.
3263
3264 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3265
326610. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3267
326811. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3269 could be overwritten at the end of the current message (or the start of a
3270 new message if it was set in a HELO ACL). The value is now preserved for
3271 the duration of the SMTP connection.
3272
327312. If a transport had a headers_rewrite setting, and a matching header line
3274 contained an unqualified address, that address was qualified, even if it
3275 did not match any rewriting rules. The underlying bug was that the values
3276 of the flags that permit the existence of unqualified sender and recipient
3277 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3278 non-local messages, and by -bnq for local messages) were not being
3279 preserved with the message after it was received.
3280
328113. When Exim was logging an SMTP synchronization error, it could sometimes log
3282 "next input=" as part of the text comprising the host identity instead of
3283 the correct text. The code was using the same buffer for two different
3284 strings. However, depending on which order the printing function evaluated
3285 its arguments, the bug did not always show up. Under Linux, for example, my
3286 test suite worked just fine.
3287
328814. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3289 doesn't work with some older versions of Perl. It has been changed to "my",
3290 which in any case is probably the better facility to use.
3291
329215. A really picky compiler found some instances of statements for creating
3293 error messages that either had too many or two few arguments for the format
3294 string.
3295
329616. The size of the buffer for calls to the DNS resolver has been increased
3297 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3298 for addresses that have a lot of PTR records. This alleviates a problem; it
3299 does not fully solve it.
3300
330117. A dnsdb lookup for PTR records that receives more data than will fit in the
3302 buffer now truncates the list and logs the incident, which is the same
3303 action as happens when Exim is looking up a host name and its aliases.
3304 Previously in this situation something unpredictable would happen;
3305 sometimes it was "internal error: store_reset failed".
3306
330718. If a server dropped the connection unexpectedly when an Exim client was
3308 using GnuTLS and trying to read a response, the client delivery process
3309 crashed while trying to generate an error log message.
3310
331119. If a "warn" verb in an ACL added multiple headers to a message in a single
3312 string, for example:
3313
3314 warn message = H1: something\nH2: something
3315
3316 the text was added as a single header line from Exim's point of view
3317 though it ended up OK in the delivered message. However, searching for the
3318 second and subsequent header lines using $h_h2: did not work. This has been
3319 fixed. Similarly, if a system filter added multiple headers in this way,
3320 the routers could not see them.
3321
332220. Expanded the error message when iplsearch is called with an invalid key to
3323 suggest using net-iplsearch in a host list.
3324
332521. When running tests using -bh, any delays imposed by "delay" modifiers in
3326 ACLs are no longer actually imposed (and a message to that effect is
3327 output).
3328
332922. If a "gecos" field in a passwd entry contained escaped characters, in
3330 particular, if it contained a \" sequence, Exim got it wrong when building
3331 a From: or a Sender: header from that name. A second bug also caused
3332 incorrect handling when an unquoted " was present following a character
3333 that needed quoting.
3334
333523. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3336 was not being matched caselessly.
3337
333824. Arranged for all hyphens in the exim.8 source to be escaped with
3339 backslashes.
3340
334125. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3342 properly. Recipient callout cache records were still being keyed to include
3343 the sender, even when use_sender was set false. This led to far more
3344 callouts that were necessary. The sender is no longer included in the key
3345 when use_sender is false.
3346
334726. Added "control = submission" modifier to ACLs.
3348
334927. Added the ${base62d: operator to decode base 62 numbers.
3350
335128. dnsdb lookups can now access SRV records.
3352
335329. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3354 the configuration file.
3355
335630. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3357 (-v) mode. This makes the output for a verbose queue run more intelligible.
3358
335931. Added a use_postmaster feature to recipient callouts.
3360
336132. Added the $body_zerocount variable, containing the number of binary zero
3362 bytes in the message body.
3363
336433. The time of last modification of the "new" subdirectory is now used as the
3365 "mailbox time last read" when there is a quota error for a maildir
3366 delivery.
3367
336834. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3369
337035. Added +ignore_unknown as a special item in host lists.
3371
337236. Code for decoding IPv6 addresses in host lists is now included, even if
3373 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3374 address was recognized as an IP address, but was then not correctly decoded
3375 into binary, causing unexpected and incorrect effects when compared with
3376 another IP address.
3377
3378
3379Exim version 4.34
3380-----------------
3381
3382 1. Very minor rewording of debugging text in manualroute to say "list of
3383 hosts" instead of "hostlist".
3384
3385 2. If verify=header_syntax was set, and a header line with an unqualified
3386 address (no domain) and a large number of spaces between the end of the
3387 name and the colon was received, the reception process suffered a buffer
3388 overflow, and (when I tested it) crashed. This was caused by some obsolete
3389 code that should have been removed. The fix is to remove it!
3390
3391 3. When running in the test harness, delay a bit after writing a bounce
3392 message to get a bit more predictability in the log output.
3393
3394 4. Added a call to search_tidyup() just before forking a reception process. In
3395 theory, someone could use a lookup in the expansion of smtp_accept_max_
3396 per_host which, without the tidyup, could leave open a database connection.
3397
3398 5. Added the variables $recipient_data and $sender_data which get set from a
3399 lookup success in an ACL "recipients" or "senders" condition, or a router
3400 "senders" option, similar to $domain_data and $local_part_data.
3401
3402 6. Moved the writing of debug_print from before to after the "senders" test
3403 for routers.
3404
3405 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3406 problems for message scanning, either using a data ACL, or using
3407 local_scan() because the Received: header was not generated till after they
3408 were called (in order to set the time as the time of reception completion).
3409 I have revised the way this works. The header is now generated after the
3410 body is received, but before the ACL or local_scan() are called. After they
3411 are run, the timestamp in the header is updated.
3412
3413
3414Exim version 4.33
3415-----------------
3416
3417 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3418 before starting a queue runner without re-exec. This happened only when
3419 deliver_drop_privilege was set or when the Exim user was set to root. The
3420 effect of the bug was that timeouts during subsequent deliveries caused
3421 crashes instead of being properly handled. The handler is now left at its
3422 default (and expected) setting.
3423
3424 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3425 message, again when deliver_drop_privilege is set or Exim is run as root.
3426 The bug described in (1) was not present in this case, but the tidying up
3427 of the other signals was missing. I have made the two cases consistent.
3428
3429 3. The ignore_target_hosts setting on a manualroute router was being ignored
3430 for hosts that were looked up using the /MX notation.
3431
3432 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3433 in domain lists.
3434
3435 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3436 operated on the sender address. After changing the $sender_address to <>
3437 for the sender address verify, Exim was re-instated it as the original
3438 (before rewriting) address, but remembering that it had rewritten it, so it
3439 wasn't rewriting it again. This bug also had the effect of breaking the
3440 sender address verification caching when the sender address was rewritten.
3441
3442 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3443 This has been changed so that if the ip literal address matches
3444 ignore_target_hosts, the router declines.
3445
3446 7. Added expansion conditions match_domain, match_address, and match_local_
3447 part (NOT match_host).
3448
3449 8. The placeholder for the Received: header didn't have a length field set.
3450
3451 9. Added code to Exim itself and to exim_lock to test for a specific race
3452 condition that could lead to file corruption when using MBX delivery. The
3453 issue is with the lockfile that is created in /tmp. If this file is removed
3454 after a process has opened it but before that process has acquired a lock,
3455 there is the potential for a second process to recreate the file and also
3456 acquire a lock. This could lead to two Exim processes writing to the file
3457 at the same time. The added code performs the same test as UW imapd; it
3458 checks after acquiring the lock that its file descriptor still refers to
3459 the same named file.
3460
346110. The buffer for building added header lines was of fixed size, 8192 bytes.
3462 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3463 when Exim is built.
3464
346511. Added the smtp_active_hostname option. If used, this will typically be made
3466 to depend on the incoming interface address. Because $interface_address is
3467 not set up until the daemon has forked a reception process, error responses
3468 that can happen earlier (such as "too many connections") no longer contain
3469 a host name.
3470
347112. If an expansion in a condition on a "warn" statement fails because a lookup
3472 defers, the "warn" statement is abandoned, and the next ACL statement is
3473 processed. Previously this caused the whole ACL to be aborted.
3474
347513. Added the iplsearch lookup type.
3476
347714. Added ident_timeout as a log selector.
3478
347915. Added tls_certificate_verified as a log selector.
3480
348116. Added a global option tls_require_ciphers (compare the smtp transport
3482 option of the same name). This controls incoming TLS connections.
3483
348417. I finally figured out how to make tls_require_ciphers do a similar thing
3485 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3486 before starting the TLS session.
3487
348818. Tabs are now shown as \t in -bP output.
3489
349019. If the log selector return_path_on_delivery was set, Exim crashed when
3491 bouncing a message because it had too many Received: header lines.
3492
349320. If two routers both had headers_remove settings, and the first one included
3494 a superfluous trailing colon, the final name in the first list and the
3495 first name in the second list were incorrectly joined into one item (with a
3496 colon in the middle).
3497
3498
3499Exim version 4.32
3500-----------------
3501
3502 1. Added -C and -D options to the exinext utility, mainly to make it easier
3503 to include in the automated testing, but these could be helpful when
3504 multiple configurations are in use.
3505
3506 2. The exinext utility was not formatting the output nicely when there was
3507 an alternate port involved in the retry record key, nor when there was a
3508 message id as well (for retries that were specific to a specific message
3509 and a specific host). It was also confused by IPv6 addresses, because of
3510 the additional colons they contain. I have fixed the IPv4 problem, and
3511 patched it up to do a reasonable job for IPv6.
3512
3513 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3514 delivery, the log line now contains "pipelined" if PIPELINING was used.
3515
3516 4. An SMTP transport process used to panic and die if the bind() call to set
3517 an explicit outgoing interface failed. This has been changed; it is now
3518 treated in the same way as a connect() failure.
3519
3520 5. A reference to $sender_host_name in the part of a conditional expansion
3521 that was being skipped was still causing a DNS lookup. This no longer
3522 occurs.
3523
3524 6. The def: expansion condition was not recognizing references to header lines
3525 that used bh_ and bheader_.
3526
3527 7. Added the _cache feature to named lists.
3528
3529 8. The code for checking quota_filecount in the appendfile transport was
3530 allowing one more file than it should have been.