Integrated SPF Best Guess. Fixes: bug #521
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
65a7d8c3 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.544 2008/02/12 12:52:51 nm4 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
NM
6Exim version 4.70
7-----------------
8
9NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
10 When building exim an external PCRE library is now needed -
11 PCRE is a system library on the majority of modern systems.
12 See entry on PCRE_LIBS in EDITME file.
13
deafd5b3
NM
14NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
15 conversation. Added nologin parameter to request.
16 Patch contributed by Kirill Miazine
17
089793a4
TF
18TF/01 Do not log submission mode rewrites if they do not change the address.
19
5f16ca82
TF
20TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
21
dae9d94e
NM
22NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
23 log files in place. Contributed by Roberto Lima
24
3f0da4d0
NM
25NM/04 Bugzilla 667: close socket used by dovecot authenticator
26
06864c44
TF
27TF/03 Bugzilla 615: When checking the local_parts router precondition
28 after a local_part_suffix or local_part_prefix option, Exim now
29 does not use the address's named list lookup cache, since this
30 contains cached lookups for the whole local part.
31
65a7d8c3
NM
32NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
33 Robert Millan. Documentation is in experimental-spec.txt
34
35
deafd5b3 36
47db1125
NM
37Exim version 4.69
38-----------------
39
4b3504d0
TK
40TK/01 Add preliminary DKIM support. Currently requires a forked version of
41 ALT-N's libdkim that I have put here:
42 http://duncanthrax.net/exim-experimental/
43
44 Note to Michael Haardt: I had to rename some vars in sieve.c. They
45 were called 'true' and it seems that C99 defines that as a reserved
46 keyword to be used with 'bool' variable types. That means you could
47 not include C99-style headers which use bools without triggering
48 build errors in sieve.c.
49
81ea09ca
NM
50NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
51 as mailq or other aliases. Changed the --help handling significantly
52 to do whats expected. exim_usage() emits usage/help information.
53
f13cddcb
SC
54SC/01 Added the -bylocaldomain option to eximstats.
55
8ad076b2
NM
56NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
57
a843aaa6
NM
58NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
59
47db1125
NM
60NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
61
62
eb4c0de6
PH
63Exim version 4.68
64-----------------
65
66PH/01 Another patch from the Sieve maintainer.
67
6a3bceb1
PH
68PH/02 When an IPv6 address is converted to a string for single-key lookup
69 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
70 dots are used instead of colons so that keys in lsearch files need not
71 contain colons. This was done some time before quoting was made available
72 in lsearch files. However, iplsearch files do require colons in IPv6 keys
73 (notated using the quote facility) so as to distinguish them from IPv4
74 keys. This meant that lookups for IP addresses in host lists did not work
75 for iplsearch lookups.
76
77 This has been fixed by arranging for IPv6 addresses to be expressed with
78 colons if the lookup type is iplsearch. This is not incompatible, because
79 previously such lookups could never work.
80
81 The situation is now rather anomolous, since one *can* have colons in
82 ordinary lsearch keys. However, making the change in all cases is
83 incompatible and would probably break a number of configurations.
84
2e30fa9d
TK
85TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
86 version.
87
0806a9c5
MH
88MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
89 conversion specification without a maximum field width, thereby enabling
90 a rogue spamd server to cause a buffer overflow. While nobody in their
91 right mind would setup Exim to query an untrusted spamd server, an
92 attacker that gains access to a server running spamd could potentially
93 exploit this vulnerability to run arbitrary code as the Exim user.
94
ae276964
TK
95TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
96 $primary_hostname instead of what libspf2 thinks the hosts name is.
97
0f2cbd1b
MH
98MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
99 a directory entry by the name of the lookup key. Previously, if a
100 symlink pointed to a non-existing file or a file in a directory that
101 Exim lacked permissions to read, a lookup for a key matching that
102 symlink would fail. Now it is enough that a matching directory entry
103 exists, symlink or not. (Bugzilla 503.)
104
2b85bce7
PH
105PH/03 The body_linecount and body_zerocount variables are now exported in the
106 local_scan API.
107
93655c46
PH
108PH/04 Added the $dnslist_matched variable.
109
6c512171
PH
110PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
111 This means they are set thereafter only if the connection becomes
112 encrypted.
113
114PH/06 Added the client_condition to authenticators so that some can be skipped
115 by clients under certain conditions.
116
aa6dc513
PH
117PH/07 The error message for a badly-placed control=no_multiline_responses left
118 "_responses" off the end of the name.
119
a96603a0
PH
120PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
121
8f240103
PH
122PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
123 (without spaces) instead of just copying the configuration text.
124
125PH/10 Added the /noupdate option to the ratelimit ACL condition.
126
d677b2f2
PH
127PH/11 Added $max_received_linelength.
128
d52120f2
PH
129PH/12 Added +ignore_defer and +include_defer to host lists.
130
64f2600a
PH
131PH/13 Installed PCRE version 7.2. This needed some changes because of the new
132 way in which PCRE > 7.0 is built.
133
8669f003
PH
134PH/14 Implemented queue_only_load_latch.
135
a4dc33a8
PH
136PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
137 MAIL command. The effect was to mangle the value on 64-bit systems.
138
d6a60c0f
PH
139PH/16 Another patch from the Sieve maintainer.
140
8f128379
PH
141PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
142
8932dffe
PH
143PH/18 If a system quota error occurred while trying to create the file for
144 a maildir delivery, the message "Mailbox is full" was not appended to the
145 bounce if the delivery eventually timed out. Change 4.67/27 below applied
146 only to a quota excession during the actual writing of the file.
d6a60c0f 147
ddea74fa 148PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
149 characters?) which causes problems in log lines. The DN values are now
150 passed through string_printing() before being added to log lines.
151
ddea74fa 152PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
153 and InterBase are left for another time.)
154
ddea74fa
PH
155PH/21 Added message_body_newlines option.
156
ce9f225c
PH
157PH/22 Guard against possible overflow in moan_check_errorcopy().
158
19897d52
PH
159PH/23 POSIX allows open() to be a macro; guard against that.
160
bc64a74d
PH
161PH/24 If the recipient of an error message contained an @ in the local part
162 (suitably quoted, of course), incorrect values were put in $domain and
163 $local_part during the evaluation of errors_copy.
164
eb4c0de6 165
b4ed4da0
PH
166Exim version 4.67
167-----------------
168
22ad45c9
MH
169MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
170 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
171 Jan Srzednicki.
172
b4ed4da0
PH
173PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
174 issue a MAIL command.
175
431b7361
PH
176PH/02 In an ACL statement such as
177
178 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
179
180 if a client was not listed at all, or was listed with a value other than
181 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
182 the condition was not true (as it should be), so access was not denied.
183 The bug was that the ! inversion was incorrectly passed on to the second
184 item. This has been fixed.
185
186PH/03 Added additional dnslists conditions == and =& which are different from
187 = and & when the dns lookup returns more than one IP address.
188
83da1223
PH
189PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
190 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
191
54fc8428
PH
192PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
193 FSYNC, which compiles an option called disable_fsync that allows for
194 bypassing fsync(). The documentation is heavily laced with warnings.
195
34c5e8dd
SC
196SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
197
bbe15da8
PH
198PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
199 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
200 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
201 including adding "make clean"; (3) Added -fPIC when compiling the test
202 dynamically loaded module, to get rid of a warning.
203
0e8a9471
MH
204MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
205 message fails, move_frozen_messages = true and ignore_bounce_errors_after
206 = 0s. The bug is otherwise harmless.
207
f0872424
PH
208PH/07 There was a bug in the dovecot authenticator such that the value of
209 $auth1 could be overwritten, and so not correctly preserved, after a
210 successful authentication. This usually meant that the value preserved by
211 the server_setid option was incorrect.
212
b01dd148
PH
213PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
214
6bf342e1
PH
215PH/09 Installed PCRE release 7.0.
216
273f34d0
PH
217PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
218 run for batched SMTP input. It is now run at the start of every message
219 in the batch. While fixing this I discovered that the process information
220 (output by running exiwhat) was not always getting set for -bs and -bS
221 input. This is fixed, and it now also says "batched" for BSMTP.
222
cf8b11a5
PH
223PH/11 Added control=no_pipelining.
224
41c7c167
PH
225PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
226 patch, slightly modified), and move the expansion of helo_data till after
227 the connection is made in the smtp transport (so it can use these
228 values).
229
9c57cbc0
PH
230PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
231
f3f065bb
PH
232PH/14 Added log_selector = +pid.
233
047bdd8c
PH
234PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
235
0ce9abe6
PH
236PH/16 Add ${if forany and ${if forall.
237
0e22dfd1
PH
238PH/17 Added dsn_from option to vary the From: line in DSNs.
239
4c590bd1
PH
240PH/18 Flush SMTP output before performing a callout, unless control =
241 no_callout_flush is set.
242
09945f1e
PH
243PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
244 was true (the default) a successful delivery failed to delete the retry
245 item, thus causing premature timeout of the address. The bug is now
246 fixed.
247
c51b8e75
PH
248PH/20 Added hosts_avoid_pipelining to the smtp transport.
249
e28326d8
PH
250PH/21 Long custom messages for fakedefer and fakereject are now split up
251 into multiline reponses in the same way that messages for "deny" and
252 other ACL rejections are.
253
75b1493f
PH
254PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
255 with slight modification.
256
7c5214ec
PH
257PH/23 Applied sieve patches from the maintainer "tracking the latest notify
258 draft, changing the syntax and factoring some duplicate code".
259
4311097e
PH
260PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
261 for deliveries of the second and subsequent messages over the same SMTP
262 connection.
263
29f89cad
PH
264PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
265 ${reduce, with only minor "tidies".
266
5e687460
SC
267SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
268
c3611384
PH
269PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
270 expansion side effects.
271
5a11a7b4
PH
272PH/27 When a message times out after an over-quota error from an Exim-imposed
273 quota, the bounce message says "mailbox is full". This message was not
274 being given when it was a system quota that was exceeded. It now should
275 be the same.
276
0e20aff9
MH
277MH/03 Made $recipients available in local_scan(). local_scan() already has
278 better access to the recipient list through recipients_list[], but
279 $recipients can be useful in postmaster-provided expansion strings.
280
ca86f471
PH
281PH/28 The $smtp_command and $smtp_command_argument variables were not correct
282 in the case of a MAIL command with additional options following the
283 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
284 were accidentally chopped off.
285
a14e5636
PH
286PH/29 SMTP synchronization checks are implemented when a command is read -
287 there is a check that no more input is waiting when there shouldn't be
288 any. However, for some commands, a delay in an ACL can mean that it is
289 some time before the response is written. In this time, more input might
290 arrive, invalidly. So now there are extra checks after an ACL has run for
291 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
292 pipelining has not been advertised.
293
ec95d1a6
PH
294PH/30 MH's patch to allow iscntrl() characters to be list separators.
295
42855d71
PH
296PH/31 Unlike :fail:, a custom message specified with :defer: was not being
297 returned in the SMTP response when smtp_return_error_details was false.
298 This has been fixed.
299
57c2c631
PH
300PH/32 Change the Dovecot authenticator to use read() and write() on the socket
301 instead of the C I/O that was originally supplied, because problems were
302 reported on Solaris.
303
58c01c94
PH
304PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
305 Exim which did not show up earlier: it was assuming that a call to
306 SSL_CTX_set_info_callback() might give an error value. In fact, there is
307 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
308 was a macro that became an assignment, so it seemed to work. This has
309 changed to a proper function call with a void return, hence the compile
310 error. Exim's code has been fixed.
311
dee5a20a
PH
312PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
313 cpus.
314
d2ee6114
PH
315PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
316
b2d5182b
PH
317PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
318
79749a79
PH
319PH/37 If a message is not accepted after it has had an id assigned (e.g.
320 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
321 "Completed" line in the log. When some messages of this type were
322 selected by exigrep, they were listed as "not completed". Others were
323 picked up by some special patterns. I have improved the selection
324 criteria to be more general.
79749a79 325
c456d9bb
PH
326PH/38 The host_find_failed option in the manualroute router can now be set
327 to "ignore", to completely ignore a host whose IP address cannot be
328 found. If all hosts are ignored, the behaviour is controlled by the new
329 host_all_ignored option.
330
cd9868ec
PH
331PH/39 In a list of hosts for manualroute, if one item (either because of multi-
332 homing or because of multiple MX records with /mx) generated more than
333 one IP address, and the following item turned out to be the local host,
334 all the secondary addresses of the first item were incorrectly removed
335 from the list, along with the local host and any following hosts (which
336 is what is supposed to happen).
337
ebeaf996
PH
338PH/40 When Exim receives a message, it writes the login name, uid, and gid of
339 whoever called Exim into the -H file. In the case of the daemon it was
340 behaving confusingly. When first started, it used values for whoever
341 started the daemon, but after a SIGHUP it used the Exim user (because it
342 calls itself on a restart). I have changed the code so that it now always
343 uses the Exim user.
344
2679d413
PH
345PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
346 message are rejected with the same error (e.g. no authentication or bad
347 sender address), and a DATA command is nevertheless sent (as can happen
348 with PIPELINING or a stupid MUA), the error message that was given to the
349 RCPT commands is included in the rejection of the DATA command. This is
350 intended to be helpful for MUAs that show only the final error to their
351 users.
352
84024b72
PH
353PH/42 Another patch from the Sieve maintainer.
354
8005d38e
SC
355SC/02 Eximstats - Differentiate between permanent and temporary rejects.
356 Eximstats - Fixed some broken HTML links and added missing column headers
357 (Jez Hancock).
358 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
359 columns for Rejects, Temp Rejects, Ham, and Spam rows.
360
3298c6c6
SC
361SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
362
a43a27c5
PH
363PH/43 Yet another patch from the Sieve maintainer.
364
58eb016e 365PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
366 the response to the final '.' that terminates a message, but only in the
367 case where the client has not sent further data following the '.'
368 (unfortunately, this is allowed). However, in many cases there won't be
369 any further data because there won't be any more messages to send. A call
370 to select() can be used: if it shows that the input is "ready", there is
371 either input waiting, or the socket has been closed. An attempt to read
372 the next input character can distinguish the two cases. Previously, Exim
58eb016e 373 would have sent an OK response which the client would never have see.
563b63fa
PH
374 This could lead to message repetition. This fix should cure that, at
375 least in a lot of common cases.
58eb016e 376
b43a74ea
PH
377PH/45 Do not advertise STARTTLS in response to HELP unless it would be
378 advertised in response to EHLO.
379
b4ed4da0 380
5dd1517f
PH
381Exim version 4.66
382-----------------
383
384PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
385 fixed by 4.65/MH/01 (is this a record?) are fixed:
386
387 (i) An empty string was always treated as zero by the numeric comparison
388 operators. This behaviour has been restored.
389
390 (ii) It is documented that the numeric comparison operators always treat
391 their arguments as decimal numbers. This was broken in that numbers
392 starting with 0 were being interpreted as octal.
393
394 While fixing these problems I realized that there was another issue that
395 hadn't been noticed. Values of message_size_limit (both the global option
396 and the transport option) were treated as octal if they started with 0.
397 The documentation was vague. These values are now always treated as
398 decimal, and I will make that clear in the documentation.
399
400
93cfa765
TK
401Exim version 4.65
402-----------------
403
404TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
405 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
406 versions. (#438)
407
d6066548
MH
408MH/01 Don't check that the operands of numeric comparison operators are
409 integers when their expansion is in "skipping" mode (fixes bug
410 introduced by 4.64-PH/07).
411
4362ff0d
PH
412PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
413 child addresses, Exim now panics and dies. Previously, because the count
414 is held in a short int, deliveries were likely to be lost. As such a
415 large number of recipients for a single message is ridiculous
416 (performance will be very, very poor), I have chosen to impose a limit
417 rather than extend the field.
418
93cfa765 419
944e9e9c
TF
420Exim version 4.64
421-----------------
aa41d2de 422
21d74bd9
TK
423TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
424 leftover -K file (the existence of which was triggered by #402).
425 While we were at it, introduced process PID as part of the -K
426 filename. This should rule out race conditions when creating
427 these files.
428
429TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
430 processing considerably. Previous code took too long for large mails,
431 triggering a timeout which in turn triggers #401.
432
433TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
434 in the DK code in transports.c. sendfile() is not really portable,
435 hence the _LINUX specificness.
944e9e9c
TF
436
437TF/01 In the add_headers option to the mail command in an Exim filter,
438 there was a bug that Exim would claim a syntax error in any
439 header after the first one which had an odd number of characters
440 in the field name.
441
2b1c6e3a
PH
442PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
443 callout verification, Exim cached a "reject" for the entire domain. This
444 is correct for most verifications, but it is not correct for a recipient
445 verification with use_sender or use_postmaster set, because in that case
446 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
447 case of MAIL FROM:<> rejection from other early rejections (e.g.
448 rejection of HELO). When verifying a recipient using a non-null MAIL
449 address, the cache is ignored if it shows MAIL FROM:<> rejection.
450 Whatever the result of the callout, the value of the domain cache is
451 left unchanged (for any other kind of callout, getting as far as trying
452 RCPT means that the domain itself is ok).
453
1f872c80
PH
454PH/02 Tidied a number of unused variable and signed/unsigned warnings that
455 gcc 4.1.1 threw up.
456
457PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
458 manifest itself as EPIPE rather than ECONNECT. When tidying away a
459 session, the daemon ignores ECONNECT errors and logs others; it now
460 ignores EPIPE as well.
461
d203e649
PH
462PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
463 (quoted-printable decoding).
464
cc2ed8f7 465PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 466 later the small subsequent patch to fix an introduced bug.
f951fd57 467
ddfcd446
PH
468PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
469
d45b1de8
PH
470PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
471
472PH/08 An error is now given if message_size_limit is specified negative.
473
38a0a95f 474PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 475 to be given (somewhat) arbitrary names.
38a0a95f 476
a2405d83
JJ
477JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
478 in 4.64-PH/09.
479
480JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
481 miscellaneous code fixes
482
6ea85e9a
PH
483PH/10 Added the log_reject_target ACL modifier to specify where to log
484 rejections.
485
26da7e20
PH
486PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
487 hostname. This is wrong, because it relates to the incoming message (and
488 probably the interface on which it is arriving) and not to the outgoing
489 callout (which could be using a different interface). This has been
490 changed to use the value of the helo_data option from the smtp transport
491 instead - this is what is used when a message is actually being sent. If
492 there is no remote transport (possible with a router that sets up host
493 addresses), $smtp_active_hostname is used.
6ea85e9a 494
14aa5a05 495PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 496 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
497 (a) The code assumed that strncpy() returns a negative number on buffer
498 overflow, which isn't the case. Replaced with Exim's string_format()
499 function.
500 (b) There were several signed/unsigned issues. I just did the minimum
501 hacking in of casts. There is scope for a larger refactoring.
502 (c) The code used strcasecmp() which is not a standard C function.
503 Replaced with Exim's strcmpic() function.
504 (d) The code set only $1; it now sets $auth1 as well.
505 (e) A simple test gave the error "authentication client didn't specify
506 service in request". It would seem that Dovecot has changed its
507 interface. Fortunately there's a specification; I followed it and
508 changed what the client sends and it appears to be working now.
509
ff75a1f7
PH
510PH/13 Added $message_headers_raw to provide the headers without RFC 2047
511 decoding.
512
e6f6568e
PH
513PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
514 address A is aliased to B and C, where B exists and C does not. Without
515 -v the output is "A verified" because verification stops after a
516 successful redirection if more than one address is generated. However,
517 with -v the child addresses are also verified. Exim was outputting "A
518 failed to verify" and then showing the successful verification for C,
519 with its parentage. It now outputs "B failed to verify", showing B's
520 parentage before showing the successful verification of C.
521
d6f6e0dc
PH
522PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
523 look up a TXT record in a specific list after matching in a combined
524 list.
525
322050c2
PH
526PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
527 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
528 they consult the DNS. I had assumed they would set it the way they
529 wanted; and indeed my experiments on Linux seem to show that in some
530 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
531 To be on the safe side, however, I have now made the interface to
532 host_find_byname() similar to host_find_bydns(), with an argument
533 containing the DNS resolver options. The host_find_byname() function now
534 sets these options at its start, just as host_find_bydns() does. The smtp
535 transport options dns_qualify_single and dns_search_parents are passed to
536 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
537 of host_find_byname() use the default settings of RES_DEFNAMES
538 (qualify_single) but not RES_DNSRCH (search_parents).
539
08955dd3
PH
540PH/17 Applied (a modified version of) Nico Erfurth's patch to make
541 spool_read_header() do less string testing, by means of a preliminary
542 switch on the second character of optional "-foo" lines. (This is
543 overdue, caused by the large number of possibilities that now exist.
544 Originally there were few.) While I was there, I also converted the
545 str(n)cmp tests so they don't re-test the leading "-" and the first
546 character, in the hope this might squeeze out yet more improvement.
547
1eccaa59
PH
548PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
549 flag allowing group syntax was set by the header_syntax check but not
550 turned off, possible causing trouble later; (2) The flag was not being
551 set at all for the header_verify test, causing "group"-style headers to
552 be rejected. I have now set it in this case, and also caused header_
553 verify to ignore an empty address taken from a group. While doing this, I
554 came across some other cases where the code for allowing group syntax
555 while scanning a header line wasn't quite right (mostly, not resetting
556 the flag correctly in the right place). These bugs could have caused
557 trouble for malformed header lines. I hope it is now all correct.
558
602e59e5
PH
559PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
560 with the "reply" argument non-NULL. The code, however (which originally
561 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
562 but it didn't always do it. This confused somebody who was copying the
563 code for some other use. I have removed all the tests.
564
411ef850
PH
565PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
566 feature that was used to support insecure browsers during the U.S. crypto
567 embargo. It requires special client support, and Exim is probably the
568 only MTA that supported it -- and would never use it because real RSA is
569 always available. This code has been removed, because it had the bad
570 effect of slowing Exim down by computing (never used) parameters for the
571 RSA_EXPORT functionality.
572
7befa435
PH
573PH/21 On the advice of Timo Sirainen, added a check to the dovecot
574 authenticator to fail if there's a tab character in the incoming data
575 (there should never be unless someone is messing about, as it's supposed
576 to be base64-encoded). Also added, on Timo's advice, the "secured" option
577 if the connection is using TLS or if the remote IP is the same as the
578 local IP, and the "valid-client-cert option" if a client certificate has
579 been verified.
580
48da4259 581PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
582 authenticators. This can be used for authorization after authentication
583 succeeds. (In the case of plaintext, it servers for both authentication
584 and authorization.)
585
48da4259
PH
586PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
587 if any retry times were supplied.
588
d1d5595c
PH
589PH/24 Exim crashed if verify=helo was activated during an incoming -bs
590 connection, where there is no client IP address to check. In this
591 situation, the verify now always succeeds.
592
0ef732d9
PH
593PH/25 Applied John Jetmore's -Mset patch.
594
328895cc
PH
595PH/26 Added -bem to be like -Mset, but loading a message from a file.
596
fd700877
PH
597PH/27 In a string expansion for a processed (not raw) header when multiple
598 headers of the same name were present, leading whitespace was being
599 removed from all of them, but trailing whitespace was being removed only
600 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
601 before concatenation. Completely empty headers in a concatenation (as
602 before) are ignored.
fd700877 603
8dce1a6f
PH
604PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
605 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
606
17af4a17
PH
607PH/29 [Removed. This was a change that I later backed out, and forgot to
608 correct the ChangeLog entry (that I had efficiently created) before
609 committing the later change.]
f6c332bd
PH
610
611PH/30 Exim was sometimes attempting to deliver messages that had suffered
612 address errors (4xx response to RCPT) over the same connection as other
613 messages routed to the same hosts. Such deliveries are always "forced",
614 so retry times are not inspected. This resulted in far too many retries
615 for the affected addresses. The effect occurred only when there were more
616 hosts than the hosts_max_try setting in the smtp transport when it had
617 the 4xx errors. Those hosts that it had tried were not added to the list
618 of hosts for which the message was waiting, so if all were tried, there
619 was no problem. Two fixes have been applied:
620
621 (i) If there are any address or message errors in an SMTP delivery, none
622 of the hosts (tried or untried) are now added to the list of hosts
623 for which the message is waiting, so the message should not be a
624 candidate for sending over the same connection that was used for a
625 successful delivery of some other message. This seems entirely
626 reasonable: after all the message is NOT "waiting for some host".
627 This is so "obvious" that I'm not sure why it wasn't done
628 previously. Hope I haven't missed anything, but it can't do any
629 harm, as the worst effect is to miss an optimization.
630
631 (ii) If, despite (i), such a delivery is accidentally attempted, the
632 routing retry time is respected, so at least it doesn't keep
633 hammering the server.
634
c1114884
PH
635PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
636 in ${readsocket because some servers need this prod.
637
7a0743eb
PH
638PH/32 Added some extra debug output when updating a wait-xxx database.
639
0d85fa3f
PH
640PH/33 The hint "could be header name not terminated by colon", which has been
641 given for certain expansion errors for a long time, was not being given
642 for the ${if def:h_colon_omitted{... case.
643
1bf43b78
PH
644PH/34 The spec says: "With one important exception, whenever a domain list is
645 being scanned, $domain contains the subject domain." There was at least
646 one case where this was not true.
647
520de300
PH
648PH/35 The error "getsockname() failed: connection reset by peer" was being
649 written to the panic log as well as the main log, but it isn't really
650 panic-worthy as it just means the connection died rather early on. I have
651 removed the panic log writing for the ECONNRESET error when getsockname()
652 fails.
653
48c7f9e2
PH
654PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
655 runs only) independently of the message's sender address. This meant
656 that, if the 4xx error was in fact related to the sender, a different
657 message to the same recipient with a different sender could confuse
658 things. In particualar, this can happen when sending to a greylisting
659 server, but other circumstances could also provoke similar problems.
660 I have changed the default so that the retry time for these errors is now
661 based a combination of the sender and recipient addresses. This change
662 can be overridden by setting address_retry_include_sender=false in the
663 smtp transport.
664
99ea1c86
PH
665PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
666 remote server are returned as part of bounce messages. This was not
667 happening for LMTP over a pipe (the lmtp transport), but now it is the
668 same for both kinds of LMTP.
669
a2042e78
PH
670PH/38 Despite being documented as not happening, Exim was rewriting addresses
671 in header lines that were in fact CNAMEs. This is no longer the case.
672
4fbcfc2e
PH
673PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
674 and queue runs started by the daemon processed all messages. This has
675 been fixed so that -R and -S can now usefully be given with -q<time>.
676
aa41d2de
PH
677PH/40 Import PCRE release 6.7 (fixes some bugs).
678
af561417
PH
679PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
680
3cc66b45
PH
681PH/42 Give an error if -q is specified more than once.
682
194cc0e4
PH
683PH/43 Renamed the variables $interface_address and $interface_port as
684 $received_ip_address and $received_port, to make it clear that these
685 values apply to message reception, and not to the outgoing interface when
686 a message is delivered. (The old names remain recognized, of course.)
687
a401ddaa
PH
688PH/44 There was no timeout on the connect() call when using a Unix domain
689 socket in the ${readsocket expansion. There now is.
690
4e88a19f
PH
691PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
692 be meaningful with "accept".
693
d7d7b289
SC
694SC/01 Eximstats V1.43
695 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
696
697SC/02 Eximstats V1.44
698 Use a glob alias rather than an array ref in the generated
699 parser. This improves both readability and performance.
700
701SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
702 Collect SpamAssassin and rejection statistics.
703 Don't display local sender or destination tables unless
704 there is data to show.
705 Added average volumes into the top table text output.
706
707SC/04 Eximstats V1.46
708 Collect data on the number of addresses (recipients)
709 as well as the number of messages.
710
711SC/05 Eximstats V1.47
712 Added 'Message too big' to the list of mail rejection
713 reasons (thanks to Marco Gaiarin).
714
715SC/06 Eximstats V1.48
716 Mainlog lines which have GMT offsets and are too short to
717 have a flag are now skipped.
718
719SC/07 Eximstats V1.49 (Alain Williams)
720 Added the -emptyok flag.
721
722SC/08 Eximstats V1.50
723 Fixes for obtaining the IP address from reject messages.
724
0ea2a468
JJ
725JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
726 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
727 whitesspace changes from 4.64-PH/27
728
729JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
730 match 4.64-PH/13
731
732JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
733 are found, allow negative numbers in numeric criteria)
734
735JJ/06 exipick.20061117.2, added new $message_body_missing variable
736
737JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
738 to match changes made in 4.64-PH/43
739
8a10f5a4
PH
740PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
741
30e18802
PH
742PH/47 Put in an explicit test for a DNS lookup of an address record where the
743 "domain" is actually an IP address, and force a failure. This locks out
744 those revolvers/nameservers that support "A-for-A" lookups, in
745 contravention of the specifications.
746
55728a4f
PH
747PH/48 When a host name was looked up from an IP address, and the subsequent
748 forward lookup of the name timed out, the host name was left in
749 $sender_host_name, contrary to the specification.
d7d7b289 750
d7837193
PH
751PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
752 restricted to single-key lookups, Exim was not diagnosing an error if
753 * or *@ was used with a query-style lookup.
754
87054a31
PH
755PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
756
ea2c01d2
MH
757MH/01 local_scan ABI version incremented to 1.1. It should have been updated
758 long ago, but noone interested enough thought of it. Let's just say that
759 the "1.1" means that there are some new functions that weren't there at
760 some point in the past.
761
e4fa6968
PH
762PH/51 Error processing for expansion failure of helo_data from an smtp
763 transport during callout processing was broken.
764
56f5d9bd
PH
765PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
766 tested/used via the -bh/-bhc/-bs options.
767
922e1c28
PH
768PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
769 bug, fixed in subsequent PCRE releases).
770
21eb6e72
PH
771PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
772 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
773
a0540757
PH
774PH/55 Check for a ridiculously long file name in exim_dbmbuild.
775
944e9e9c 776
478be7b0
SC
777Exim version 4.63
778-----------------
779
780SC/01 Use a glob alias rather than an array ref in eximstats generated
781 parser. This improves both readability and performance.
782
783SC/02 Collect SpamAssassin and rejection statistics in eximstats.
784 Don't display local sender or destination tables in eximstats unless
785 there is data to show.
786 Added average volumes into the eximstats top table text output.
787
788SC/03 Collect data on the number of addresses (recipients) as well
789 as the number of messages in eximstats.
790
2b965a65
TF
791TF/01 Correct an error in the documentation for the redirect router. Exim
792 does (usually) call initgroups() when daemonizing.
478be7b0 793
45b91596
PH
794TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
795 with consistent privilege compared to when running as a daemon.
478be7b0 796
c59f5781
TF
797TF/03 Note in the spec that $authenticated_id is not set for local
798 submissions from trusted users.
799
90fc3069
TF
800TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
801 Thanks to Dean Brooks <dean@iglou.com> for the patch.
802
6083aca0
TF
803TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
804 by adding some example configuration directives to the default
805 configuration file. A little bit of work is required to uncomment the
806 directives and define how usernames and passwords are checked, but
807 there is now a framework to start from.
808
765b530f
PH
809PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
810 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
811 without this. I don't know how relevant this is to other LDAP libraries.
812
4e167a8c
PH
813PH/02 Add the verb name to the "unknown ACL verb" error.
814
4608d683
PH
815PH/03 Magnus Holmgren's patch for filter_prepend_home.
816
b8dc3e4a
PH
817PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
818
5418e93b
PH
819PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
820 directory not expanded when it should be if an expanded home directory
821 was set for the address (which is overridden by the transport).
822
b4a9bda2
PH
823PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
824 libradius.
825
45b91596
PH
826PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
827 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
828 because it is too late at that time, and has no effect.
829
5547e2c5
PH
830PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
831 security issue with \' (bugzilla #107). I could not use the
832 PQescapeStringConn() function, because it needs a PGconn value as one of
833 its arguments.
834
dbcef0ea
PH
835PH/08 When testing addresses using -bt, indicate those final addresses that
836 are duplicates that would not cause an additional delivery. At least one
837 person was confused, thinking that -bt output corresponded to deliveries.
838 (Suppressing duplicates isn't a good idea as you lose the information
839 about possibly different redirections that led to the duplicates.)
840
25257489
PH
841PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
842 systems where poll() doesn't work, in particular OS X.
843
c816d124
PH
844PH/10 Added more information to debugging output for retry time not reached.
845
a9ccd69a
PH
846PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
847 operations in malware.c.
848
75fa1910
PH
849PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
850 signatures.
851
a7d7aa58
PH
852PH/13 If write_rejectlog was set false when logging was sent to syslog with
853 syslog_duplication set false, log lines that would normally be written
854 both the the main log and to the reject log were not written to syslog at
855 all.
856
42119b09
PH
857PH/14 In the default configuration, change the use of "message" in ACL warn
858 statements to "add_header".
859
41609df5
PH
860PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
861 not followed by a command (e.g. "seen endif").
862
a5bd321b
PH
863PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
864 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
865 latter.
866
e85a7ad5 867PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
868 so that it is now:
869
e85a7ad5
PH
870 ${if or { \
871 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
872 { match{$h_precedence:}{(?i)bulk|list|junk} } \
873 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
874 }{no}{yes}}
875
e85a7ad5
PH
876 The Auto-Submitted: and various List- headers are standardised, whereas I
877 don't think Precedence: ever was.
5dff5817 878
d8fe1c03
PH
879PH/18 Refactored debugging code in route_finduser() to show more information,
880 in particular, the error code if getpwnam() issues one.
881
16282d2b
PH
882PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
883 This is apparently needed in addition to the PH/07 change above to avoid
884 any possible encoding problems.
885
35d40a98
PH
886PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
887 but not after initializing Perl.
888
034d99ab
PH
889PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
890 output them only if debugging. By default they are written stderr,
891 apparently, which is not desirable.
892
6ec97b1b
PH
893PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
894 queries.
895
e22ca4ac
JJ
896JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
897 --not options
898
899JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
900
33d73e3b
PH
901PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
902 authenticated or an ident call has been made. Suppress the default
903 values for $authenticated_id and $authenticated_sender (but permit -oMai
904 and -oMas) when testing with -bh.
905
9ecb03f3
PH
906PH/24 Re-jigged the order of the tests in the default configuration so that the
907 tests for valid domains and recipients precede the DNS black list and CSA
908 tests, on the grounds that those ones are more expensive.
909
084efe8d
PH
910PH/25 Exim was not testing for a space following SMTP commands such as EHLO
911 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
912 This bug exists in every version of Exim that I still have, right back to
913 0.12.
914
366fc9f0
PH
915PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
916 However, an attempt to turn on case-sensitivity in a regex key by
917 including (?-i) didn't work because the subject string was already
918 lowercased, and the effects were non-intuitive. It turns out that a
919 one-line patch can be used to allow (?-i) to work as expected.
920
c59f5781 921
c887c79e
TF
922Exim version 4.62
923-----------------
924
925TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
926 other effects) broke the use of negated acl sub-conditions.
927
1cce3af8
PH
928PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
929 patch).
930
afb3eaaf
PH
931PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
932 "Deny" causes Exim to reject the incoming connection with a 554 error.
933 Unfortunately, if there is a major crisis, such as a disk failure,
934 tcp-wrappers gives "deny", whereas what one would like would be some
935 kind of temporary error. A kludge has been added to help with this.
936 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
937 554 error is used if errno is still zero or contains ENOENT (which occurs
938 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
939 451 error is used.
940
e173618b
PH
941PH/03 Add -lutil to the default FreeBSD LIBS setting.
942
dd16e114
PH
943PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
944 errors. Otherwise a message that provokes a temporary error (when other
945 messages do not) can cause a whole host to time out.
946
f7fd3850
PH
947PH/05 Batch deliveries by appendfile and pipe transports did not work when the
948 addresses were routed directly to files or pipes from a redirect router.
949 File deliveries just didn't batch; pipe deliveries might have suffered
950 odd errors.
951
d87df92c
PH
952PH/06 A failure to get a lock for a hints database would erroneously always say
953 "Failed to get write lock", even when it was really a read lock.
954
7e9f683d
PH
955PH/07 The appendfile transport was creating MBX lock files with a fixed mode
956 of 0600. This has been changed to use the value of the lockfile_mode
957 option (which defaults to 0600).
958
bfad5236
PH
959PH/08 Applied small patch from the Sieve maintainer.
960
01c490df
PH
961PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
962 folder from quota calculations, a direct delivery into this folder messed
963 up the contents of the maildirsize file. This was because the regex was
964 used only to exclude .Trash (or whatever) when the size of the mailbox
965 was calculated. There was no check that a delivery was happening into an
966 excluded directory. This bug has been fixed by ignoring all quota
967 processing for deliveries into excluded directories.
968
d6629cdc
PH
969PH/10 Added the maildirfolder_create_regex option to appendfile.
970
1cce3af8 971
214e2000
PH
972Exim version 4.61
973-----------------
974
975PH/01 The code for finding all the local interface addresses on a FreeBSD
976 system running IPv6 was broken. This may well have applied to all BSD
977 systems, as well as to others that have similar system calls. The broken
978 code found IPv4 interfaces correctly, but gave incorrect values for the
979 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
980 that it would not match correctly against @[] and not recognize the IPv6
981 addresses as local.
982
f9daeae0
PH
983PH/02 The ipliteral router was not recognizing addresses of the form user@
984 [ipv6:....] because it didn't know about the "ipv6:" prefix.
985
7e66e54d
PH
986PH/03 Added disable_ipv6.
987
c8ea1597
PH
988PH/04 Changed $reply_address to use the raw form of the headers instead of the
989 decoded form, because it is most often used to construct To: headers
990 lines in autoreplies, and the decoded form may well be syntactically
991 invalid. However, $reply_address has leading white space removed, and all
992 newlines turned into spaces so that the autoreply transport does not
993 grumble.
994
911f6fde
PH
995PH/05 If group was specified without a user on a router, and no group or user
996 was specified on a transport, the group from the router was ignored.
997
47ca6d6c
PH
998PH/06 Increased the number of ACL variables to 20 of each type, and arranged
999 for visible compile-time settings that can be used to change these
1000 numbers, for those that want even more. Backwards compatibility with old
1001 spool files has been maintained. However, going back to a previous Exim
1002 release will lost any variables that are in spool files.
1003
ed0e9820
PH
1004PH/07 Two small changes when running in the test harness: increase delay when
1005 passing a TCP/IP connection to a new process, in case the original
1006 process has to generate a bounce, and remove special handling of
1007 127.0.0.2 (sic), which is no longer necessary.
1008
eff37e47
PH
1009PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1010 be the same on different OS.
1011
1921d2ea
PH
1012PH/09 Moved a debug statement in filter processing to avoid a race problem when
1013 testing.
1014
b3f69ca8
JJ
1015JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1016 whether --show-vars was specified or not
1017
1018JJ/02 exipick: Added support for new ACL variable spool format introduced
1019 in 4.61-PH/06
1020
424a1c63
PH
1021PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1022 syntactically invalid From: or Reply-to: line, and a filter used this to
1023 generate an autoreply, and therefore failed to obtain an address for the
1024 autoreply, Exim could try to deliver to a non-existent relative file
1025 name, causing unrelated and misleading errors. What now happens is that
1026 it logs this as a hard delivery error, but does not attempt to create a
1027 bounce message.
1028
7a100415
PH
1029PH/11 The exinext utility has a -C option for testing purposes, but although
1030 the given file was scanned by exinext itself; it wasn't being passed on
1031 when Exim was called.
1032
19b9dc85
PH
1033PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1034 an end-of-file indication when reading a command response.
1035
309bd837
PH
1036PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1037 compiled. In many other places in Exim, IPv6 addresses are always
1038 recognized, so I have changed this. It also means that IPv4 domain
1039 literals of the form [IPV4:n.n.n.n] are now always recognized.
1040
59e82a2a
PH
1041PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1042 used if the router is not running as root, for example, when verifying at
1043 ACL time, or when using -bh. The debugging output from this situation was
1044 non-existent - all you got was a failure to exec. I have made two
1045 changes:
1046
1047 (a) Failures to set uid/gid, the current directory, or a process leader
1048 in a subprocess such as that created by queryprogram now generate
1049 suitable debugging ouput when -d is set.
1050
1051 (b) The queryprogram router detects when it is not running as root,
1052 outputs suitable debugging information if -d is set, and then runs
1053 the subprocess without attempting to change uid/gid.
1054
9edc04ce
PH
1055PH/15 Minor change to Makefile for building test_host (undocumented testing
1056 feature).
1057
1349e1e5
PH
1058PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1059 additional section of a DNS packet that returns MX or SRV records.
1060 Instead, it always explicitly searches for A/AAAA records. This avoids
1061 major problems that occur when a DNS server includes only records of one
1062 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1063 fixed another bug: if SRV records were looked up and the corresponding
1064 address records were *not* found in the additional section, the port
1065 values from the SRV records were lost.
1066
ea49d0e1
PH
1067PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1068 using the correct key (the original address) when searching the retry
1069 rules in order to find which one to use for generating the retry hint.
1070
064a94c9
PH
1071PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1072 adding the default one. Similarly, if it contains a Reply-To: header, the
1073 errors_reply_to option, if set, is not used.
1074
727071f8
PH
1075PH/19 When calculating a retry time, Exim used to measure the "time since
1076 failure" by looking at the "first failed" field in the retry record. Now
1077 it does not use this if it is later than than the arrival time of the
1078 message. Instead it uses the arrival time. This makes for better
1079 behaviour in cases where some deliveries succeed, thus re-setting the
1080 "first failed" field. An example is a quota failure for a huge message
1081 when small messages continue to be delivered. Without this change, the
1082 "time since failure" will always be short, possible causing more frequent
1083 delivery attempts for the huge message than are intended.
dd16e114 1084 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1085
f78eb7c6
PH
1086PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1087 $1, $2, $3) because the numerical variables can be reset during some
1088 expansion items (e.g. "match"), thereby losing the authentication data.
1089
21c28500
PH
1090PH/21 Make -bV show the size of off_t variables so that the test suite can
1091 decide whether to run tests for quotas > 2G.
1092
1093PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1094 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1095 filecount value is greater than 2G or if a quota value is greater than 2G
1096 on a system where the size of off_t is not greater than 4, a panic error
1097 is given.
1098
1688f43b
PH
1099PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1100 never match. The debug and -bh output now contains an explicit error
1101 message indicating a malformed IPv4 address or mask.
1102
1103PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1104 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1105 PH/23 above applies.
1106
9675b384
PH
1107PH/25 Do not write to syslog when running in the test harness. The only
1108 occasion when this arises is a failure to open the main or panic logs
1109 (for which there is an explicit test).
1110
6a3f1455
PH
1111PH/26 Added the /no_tell option to "control=freeze".
1112
dac79d3e
PH
1113PH/27 If a host name lookup failed very early in a connection, for example, if
1114 the IP address matched host_lookup and the reverse lookup yielded a name
1115 that did not have a forward lookup, an error message of the form "no IP
1116 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1117 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1118
5977a0b3
PH
1119PH/28 An enabling patch from MH: add new function child_open_exim2() which
1120 allows the sender and the authenticated sender to be set when
1121 submitting a message from within Exim. Since child_open_exim() is
1122 documented for local_scan(), the new function should be too.
1123
c91535f3
PH
1124PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1125 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1126 results in an empty string is now treated as unset.
1127
0d46a8c8
PH
1128PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1129
278c6e6c
PH
1130PH/31 Added sender_verify_fail logging option.
1131
2cbb4081
PH
1132PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1133 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1134 tidied the source and removed it altogether.
1135
3eef829e
PH
1136PH/33 When a queue run was abandoned because the load average was too high, a
1137 log line was always written; now it is written only if the queue_run log
1138 selector is set. In addition, the log line for abandonment now contains
1139 information about the queue run such as the pid. This is always present
1140 in "start" and "stop" lines but was omitted from the "abandon" line.
1141
1ab95fa6
PH
1142PH/34 Omit spaces between a header name and the colon in the error message that
1143 is given when verify = headers_syntax fails (if there are lots of them,
1144 the message gets confusing).
1145
230205fc
PH
1146PH/35 Change the default for dns_check_names_pattern to allow slashes within
1147 names, as there are now some PTR records that contain slashes. This check
1148 is only to protect against broken name servers that fall over on strange
1149 characters, so the fact that it applies to all lookups doesn't matter.
1150
75e0e026
PH
1151PH/36 Now that the new test suite is complete, we can remove some of the
1152 special code in Exim that was needed for the old test suite. For example,
1153 sorting DNS records because real resolvers return them in an arbitrary
1154 order. The new test suite's fake resolver always returns records in the
1155 same order.
1156
1157PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1158 bounces) except when queue_only is set, to avoid logging races between
1159 the different processes.
1160
145396a6
PH
1161PH/38 Panic-die if .include specifies a non-absolute path.
1162
3cd34f13
PH
1163PH/39 A tweak to the "H" retry rule from its user.
1164
11121d3d
JJ
1165JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1166 a label. They prevented compilation on older perls.
1167
1168JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1169 a warning to be raised on newish perls.
1170
1171JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1172 on queue. Changes to match documented behaviour of showing count of
1173 messages matching specified criteria.
1174
8def5aaf
PH
1175PH/40 Changed the default ident timeout from 30s to 5s.
1176
929ba01c
PH
1177PH/41 Added support for the use of login_cap features, on those BSD systems
1178 that have them, for controlling the resources used by pipe deliveries.
1179
2632889e
PH
1180PH/42 The content-scanning code uses fopen() to create files in which to put
1181 message data. Previously it was not paying any attention to the mode of
1182 the files. Exim runs with umask(0) because the rest of the code creates
1183 files with open(), and sets the required mode explicitly. Thus, these
1184 files were ending up world-writeable. This was not a big issue, because,
1185 being within the spool directory, they were not world-accessible. I have
1186 created a function called modefopen, which takes an additional mode
1187 argument. It sets umask(777), creates the file, chmods it to the required
1188 mode, then resets the umask. All the relevant calls to fopen() in the
1189 content scanning code have been changed to use this function.
1190
944a9c55
PH
1191PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1192 to 24 hours. This avoids potential overflow problems when processing G
1193 and H retry rules. I suspect nobody ever tinkers with this value.
1194
4a23603b
PH
1195PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1196
4730f942
PH
1197PH/45 When the plaintext authenticator is running as a client, the server's
1198 challenges are checked to ensure they are valid base64 strings. By
1199 default, the authentication attempt is cancelled if an invalid string is
1200 received. Setting client_ignore_invalid_base64 true ignores these errors.
1201 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1202 they are received. Thus, the responses can be made to depend on the
1203 challenges. If an invalid string is ignored, an empty string is placed in
1204 the variable.
1205
30dba1e6
PH
1206PH/46 Messages that are created by the autoreply transport now contains a
1207 References: header, in accordance with RFCs 2822 and 3834.
1208
382afc6b
PH
1209PH/47 Added authenticated_sender_force to the smtp transport.
1210
a86229cf
PH
1211PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1212
50c99ba6
PH
1213PH/49 Installed latest patch from the Sieve maintainer.
1214
d35e429d
PH
1215PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1216 was also set, the appendfile transport was unnecessarily scanning a
1217 directory of message files (e.g. for maildir delivery) to find the count
1218 of files (along with the size), even though it did not need this
1219 information. It now does the scan only if it needs to find either the
1220 size of the count of files.
1221
f90d018c
PH
1222PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1223
75def545
PH
1224PH/52 Two bugs concerned with error handling when the smtp transport is
1225 used in LMTP mode:
1226
1227 (i) Exim was not creating retry information for temporary errors given
1228 for individual recipients after the DATA command when the smtp transport
1229 was used in LMTP mode. This meant that they could be retried too
1230 frequently, and not timed out correctly.
1231
1232 (ii) Exim was setting the flag that allows error details to be returned
1233 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1234 recipients that were returned after the DATA command.
1235
1236PH/53 This is related to PH/52, but is more general: for any failing address,
1237 when detailed error information was permitted to be returned to the
1238 sender, but the error was temporary, then after the final timeout, only
1239 "retry timeout exceeded" was returned. Now it returns the full error as
1240 well as "retry timeout exceeded".
1241
c46782ef
PH
1242PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1243 do this, and (what is worse) MTAs that accept it.
1244
71fafd95
PH
1245PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1246 will now be deprecated.
1247
2c5db4fd
PH
1248PH/56 New os.c-cygwin from the Cygwin maintainer.
1249
9cf6b11a
JJ
1250JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1251 formats (previously only available in exim formats via -bpr, -bpru,
1252 and -bpra. Now also available in native and exiqgrep formats)
1253
1254JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1255 with very large, slow to parse queues
1256
1257JJ/08 exipick: added ! as generic prefix to negate any criteria format
1258
1259JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1260
898d150f
PH
1261PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1262 responses to authentication challenges, though it was showing the
1263 challenges; (ii) I've removed the CR characters from the debug output for
1264 SMTP output lines.
1265
46218253
PH
1266PH/58 Allow for the insertion of a newline as well as a space when a string
1267 is turned into more than one encoded-word during RFC 2047 encoding. The
1268 Sieve code now uses this.
1269
e97957bc
PH
1270PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1271 data_4xx, lost_connection, tls_required.
1272
81e509d7
PH
1273PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1274 message was being sent as an SMTP response.
1275
3d240ff7
PH
1276PH/61 Add -l and -k options to exicyclog.
1277
b37c4101
PH
1278PH/62 When verifying, if an address was redirected to one new address, so that
1279 verification continued, and the new address failed or deferred after
1280 having set something in $address_data, the value of $address_data was not
1281 passed back to the ACL. This was different to the case when no
1282 redirection occurred. The value is now passed back in both cases.
1283
79378e0f
PH
1284PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1285 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1286 use login_cap.h, so on its own it isn't the distinguishing feature. The
1287 new name refers directly to the setclassresources() function.
1288
e49c7bb4
PH
1289PH/65 Added configuration files for NetBSD3.
1290
d114ec46
PH
1291PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1292
f3d7df6c
PH
1293PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1294 is preferred over IPv4.
1295
715ab376
PH
1296PH/68 The bounce_return_message and bounce_return_body options were not being
1297 honoured for bounces generated during the reception of non-SMTP messages.
1298 In particular, this applied to messages rejected by the ACL. This bug has
1299 been fixed. However, if bounce_return_message is true and bounce_return_
1300 body is false, the headers that are returned for a non-SMTP message
1301 include only those that have been read before the error was detected.
1302 (In the case of an ACL rejection, they have all been read.)
1303
6b31b150
PH
1304PH/69 The HTML version of the specification is now built in a directory called
1305 spec_html instead of spec.html, because the latter looks like a path with
1306 a MIME-type, and this confuses some software.
1307
1308PH/70 Catch two compiler warnings in sieve.c.
1309
d515a917
PH
1310PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1311 function verify_get_ident() calls ip_connect() to connect a socket, but
1312 if the "connect()" function timed out, ip_connect() used to close the
1313 socket. However, verify_get_ident() also closes the socket later, and in
1314 between Exim writes to the log, which may get opened at this point. When
1315 the socket was closed in ip_connect(), the log could get the same file
1316 descriptor number as the socket. This naturally causes chaos. The fix is
1317 not to close the socket in ip_connect(); the socket should be closed by
1318 the function that creates it. There was only one place in the code where
1319 this was missing, in the iplookup router, which I don't think anybody now
1320 uses, but I've fixed it anyway.
1321
9b8fadde
PH
1322PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1323 well as to direct DNS lookups. Otherwise the handling of names in host
1324 lists is inconsistent and therefore confusing.
1325
214e2000 1326
5de37277
PH
1327Exim version 4.60
1328-----------------
1329
cc38ddbf
PH
1330PH/01 Two changes to the default runtime configuration:
1331
1332 (1) Move the checks for relay_from_hosts and authenticated clients from
1333 after to before the (commented out) DNS black list checks.
1334
1335 (2) Add control=submission to the relay_from_hosts and authenticated
1336 clients checks, on the grounds that messages accepted by these
1337 statements are most likely to be submissions.
5de37277 1338
72fdd6ae
PH
1339PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1340
1341 (1) Generate an error if the third argument for the ${prvs expansion is
1342 not a single digit.
1343
1344 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1345 string.
1346
1347 (3) Reset the variables that are obtained from the first argument of
1348 ${prvscheck and used in the second argument before leaving the code,
1349 because their memory is reclaimed, so using them afterwards may do
1350 silly things.
1351
1352 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1353 one (it's much easier than Tom thought :-).
1354
1355 (5) Because of (4), we can now allow for the use of $prvscheck_result
1356 inside the third argument.
cb9328de 1357
cb741023
PH
1358PH/03 For some reason, the default setting of PATH when running a command from
1359 a pipe transport was just "/usr/bin". I have changed it to
1360 "/bin:/usr/bin".
1361
f174f16e
PH
1362PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1363 anything to be listed in the output from -bV.
b2f5a032 1364
c25242d7
PH
1365PH/05 When a filter generated an autoreply, the entire To: header line was
1366 quoted in the delivery log line, like this:
1367
1368 => >A.N.Other <ano@some.domain> <original@ddress> ...
1369
1370 This has been changed so that it extracts the operative address. There
1371 may be more than one such address. If so, they are comma-separated, like
1372 this:
1373
1374 => >ano@some.domain,ona@other.domain <original@ddress> ...
1375
82c19f95
PH
1376PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1377 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1378 not being looked up in the rDNS to get a host name, Exim was showing the
1379 IP address twice in Received: lines, even though the IP addresses were
1380 identical. For example:
1381
1382 Received: from [1.2.3.4] (helo=[1.2.3.4])
1383
1384 However, if the real host name was known, it was omitting the HELO data
1385 if it matched the actual IP address. This has been tidied up so that it
1386 doesn't show the same IP address twice.
1387
d7ffbc12
PH
1388PH/07 When both +timestamp and +memory debugging was on, the value given by
1389 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1390 called by the debug printing, thereby overwriting the timestamp buffer.
1391 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1392
9f526266
PH
1393PH/08 When the original message was included in an autoreply transport, it
1394 always said "this is a copy of the message, including all the headers",
1395 even if body_only or headers_only was set. It now gives an appropriate
1396 message.
1397
87fcc8b9
PH
1398PH/09 Applied a patch from the Sieve maintainer which:
1399
1400 o fixes some comments
1401 o adds the (disabled) notify extension core
1402 o adds some debug output for the result of if/elsif tests
1403 o points to the current vacation draft in the documentation
1404 and documents the missing references header update
1405
1406 and most important:
1407
1408 o fixes a bug in processing the envelope test (when testing
1409 multiple envelope elements, the last element determinted the
1410 result)
1411
456682f5
PH
1412PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1413 Electronic Mail") by including:
1414
1415 Auto-submitted: auto-generated
1416
1417 in the messages that it generates (bounce messages and others, such as
1418 warnings). In the case of bounce messages for non-SMTP mesages, there was
1419 also a typo: it was using "Auto_submitted" (underscore instead of
1420 hyphen). Since every message generated by Exim is necessarily in response
1421 to another message, thes have all been changed to:
1422
1423 Auto-Submitted: auto-replied
1424
1425 in accordance with these statements in the RFC:
1426
1427 The auto-replied keyword:
1428
1429 - SHOULD be used on messages sent in direct response to another
1430 message by an automatic process,
1431
1432 - MUST NOT be used on manually-generated messages,
1433
1434 - MAY be used on Delivery Status Notifications (DSNs) and Message
1435 Disposition Notifications (MDNs),
1436
1437 - MUST NOT be used on messages generated by automatic or periodic
1438 processes, except for messages which are automatic responses to
1439 other messages.
1440
3e46c1aa
PH
1441PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1442 to the default Received: header definition.
456682f5 1443
49826d12
PH
1444PH/12 Added log selector acl_warn_skipped (default on).
1445
eba0c039
PH
1446PH/13 After a successful wildlsearch lookup, discard the values of numeric
1447 variables because (a) they are in the wrong storage pool and (b) even if
1448 they were copied, it wouldn't work properly because of the caching.
1449
a0d6ba8a
PH
1450PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1451 checking when decoding. Apparently there are clients that generate
1452 overlong encoded strings. Why am I not surprised?
1453
f0917727
PH
1454PH/15 If the first argument of "${if match_address" was not empty, but did not
1455 contain an "@" character, Exim crashed. Now it writes a panic log message
1456 and treats the condition as false.
1457
096fee00
PH
1458PH/16 In autoreply, treat an empty string for "once" the same as unset.
1459
024bd3c2
PH
1460PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1461 extension "envelope-auth". The code is finished and in agreement with
1462 other implementations, but there is no documentation so far and in fact,
1463 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1464 not changing the active code.
1465
1466 Print executed "if" and "elsif" statements when debugging is used. This
1467 helps a great deal to understand what a filter does.
1468
1469 Document more things not specified clearly in RFC3028. I had all this
1470 sorted out, when out of a sudden new issues came to my mind. Oops."
1471
df199fec
PH
1472PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1473 (Bugzilla #53).
1474
d27f1df3
PH
1475PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1476 canonical form (as documented). However, after a host name lookup from
1477 the IP address, check_host() was doing a simple string comparison with
1478 addresses acquired from the DNS when checking that the found name did
1479 have the original IP as one of its addresses. Since any found IPv6
1480 addresses are likely to be in abbreviated form, the comparison could
1481 fail. Luckily, there already exists a function for doing the comparison
1482 by converting both addresses to binary, so now that is used instead of
1483 the text comparison.
1484
96776534
PH
1485PH/20 There was another similar case to PH/19, when a complete host name was
1486 given in a host list; looking up its IP address could give an abbreviated
1487 form, whereas the current host's name might or might not be abbreviated.
1488 The same fix has been applied.
1489
5de37277 1490
9a799bc0
PH
1491Exim version 4.54
1492-----------------
1493
1494PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1495 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1496 It now does.
1497
99a4b039
PH
1498PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1499 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1500
1501PH/03 Typo: missing ".o" in src/pcre/Makefile.
1502
4b233853
PH
1503PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1504 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1505 Also, for "Auto-Submitted", treat anything other than "no" as
1506 non-personal, in accordance with RFC 3834. (Previously it treated
1507 anything starting "auto-" as non-personal.)
1508
8857ccfd
PH
1509TF/01 The control=submission/name=... option had a problem with syntax
1510 errors if the name included a slash character. The /name= option
1511 now slurps the rest of the string, so it can include any characters
1512 but it must come last in the list of options (after /sender_retain
1513 or /domain=).
1514
433a2980
PH
1515PH/05 Some modifications to the interface to the fake nameserver for the new
1516 testing suite.
1517
3e46c1aa 1518
9a799bc0 1519
e3a311ba
TK
1520Exim version 4.53
1521-----------------
1522
1523TK/01 Added the "success_on_redirect" address verification option. See
1524 NewStuff for rationale and an example.
1525
13b685f9
PH
1526PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1527
395ff96d
PH
1528PH/02 Patch to exigrep to allow it to work on syslog lines.
1529
5b68f6e4
PH
1530PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1531 fread() to skip over the body file's header line, because in Cygwin the
1532 header line is locked and is inaccessible.
1533
1ab52c69
PH
1534PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1535 co-exist for some time) to make it clear that it is the Exim ID that is
1536 referenced, not the Message-ID: header line.
1537
b07e6aa3
PH
1538PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1539 string_format() function, because snprintf() does not exist on all
1540 operating systems.
1541
254e032f
PH
1542PH/06 The use of forbid_filter_existstest now also locks out the use of the
1543 ${stat: expansion item.
1544
3af76a81
PH
1545PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1546 protocol synchronization error", to keep the pedants happy.
1547
2548ba04
PH
1548PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1549 well as for IRIX systems, when gcc is being used. See the host.c source
1550 file for comments.
1551
b6c6011d
PH
1552PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1553
cf39cf57
PH
1554PH/10 Named domain lists were not working if used in a queue_smtp_domains
1555 setting.
1556
f1513293
PH
1557PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1558 transport and to the smtp transport in LMTP mode.
1559
727549a4
PH
1560TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1561
af46795e
PH
1562PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1563 run a filter in a subprocess. This could lead to confusion in subsequent
1564 lookups in the parent process. There should also be a search_tidyup() at
1565 the end of the subprocess.
1566
d7b47fd0
PH
1567PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1568 only if the host matched helo_try_verify_hosts, which caused the
1569 verification to occur when the EHLO/HELO command was issued. The ACL just
1570 tested the remembered result. Now, if a previous verification attempt has
1571 not happened, "verify = helo" does it there and then.
1572
ee744174
JJ
1573JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1574
b582ab87
PH
1575TK/03 Fix log output including CR from clamd.
1576
41a13e0a
PH
1577PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1578 exist provoked a memory error which could cause a segfault.
1579
f625cc5a
PH
1580PH/15 Installed PCRE 6.2
1581
1582PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1583
21f7af35
PH
1584PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1585 of the problem. Specifically, suggested +O2 rather than +O1 for the
1586 HP-UX compiler.
1587
31480e42
PH
1588PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1589
2d280592
PH
1590PH/20 If a delivery was routed to a non-standard port by means of an SRV
1591 record, the port was not correctly logged when the outgoing_port log
1592 selector was set (it logged the transort's default port).
1593
7cd1141b
PH
1594PH/21 Added support for host-specific ports to manualroute, queryprogram,
1595 fallback_hosts, and "hosts" in the smtp transport.
1596
1597PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1598 host errors such as "Connection refused".
1599
750af86e
PH
1600PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1601 authentication with radiusclient 0.4.9:
1602
1603 - Error returned from rc_read_config was caught wrongly
1604 - Username/password not passed on to radius server due to wrong length.
1605
1606 The presumption is that some radiusclient API changes for 4.51/PH/17
1607 were not taken care of correctly. The code is still untested by me (my
1608 Linux distribution still has 0.3.2 of radiusclient), but it was
1609 contributed by a Radius user.
1610
1611PH/24 When doing a callout, the value of $domain wasn't set correctly when
1612 expanding the "port" option of the smtp transport.
1613
4304270b
TK
1614TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1615 while reading a MIME header. Thanks to Tom Hughes for a patch.
1616
750af86e
PH
1617PH/24 Include config.h inside local_scan.h so that configuration settings are
1618 available.
1619
64ffc24f
PH
1620PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1621 that in an ACL for RCPT (for example), you can examine exactly what was
1622 received.
1623
5dd9625b
PH
1624PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1625 commands, but it was not correctly comparing the address with the actual
1626 client host address. Thus, it would show the EHLO address in Received:
1627 header lines when this was not necessary.
1628
5591031b
PH
1629PH/27 Added the % operator to ${eval:}.
1630
ba18e66a
PH
1631PH/28 Exim tries to create and chdir to its spool directory when it starts;
1632 it should be ignoring failures (because with -C, for example, it has lost
1633 privilege). It wasn't ignoring creation failures other than "already
1634 exists".
1635
9cec981f
PH
1636PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1637 -bV or -d is used.
1638
aa2b5c79
PH
1639PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1640 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1641 too many continuations, the temporary file was not being removed, and the
1642 return code was incorrect.
aa2b5c79 1643
48a53b7f
PH
1644PH/31 Missing "BOOL" in function definition in filtertest.c.
1645
1c59d63b
PH
1646PH/32 Applied Sieve patches from the maintainer.
1647
671012da
TK
1648TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1649
1509d3a8
PH
1650PH/33 Added "verify = not_blind".
1651
1652PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1653 Local/Makefile (with some defaults set). These are used in built scripts
1654 such as exicyclog, but they have never been used in the exim_install
1655 script (though there are many overriding facilities there). I have
1656 arranged that the exim_install script now takes note of these two
1657 settings.
1658
1659PH/35 Installed configuration files for Dragonfly.
1660
2fe1a124
PH
1661PH/36 When a locally submitted message by a trusted user did not contain a
1662 From: header, and the sender address was obtained from -f or from an SMTP
1663 MAIL command, and the trusted user did not use -F to supply a sender
1664 name, $originator_name was incorrectly used when constructing a From:
1665 header. Furthermore, $originator_name was used for submission mode
1666 messages from external hosts without From: headers in a similar way,
1667 which is clearly wrong.
1668
8800895a
PH
1669PH/37 Added control=suppress_local_fixups.
1670
ccfdb010
PH
1671PH/38 When log_selector = +received_sender was set, and the addition of the
1672 sender made the log line's construction buffer exactly full, or one byte
1673 less than full, an overflow happened when the terminating "\n" was
1674 subsequently added.
1675
1130bfb0
PH
1676PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1677 when the result of a list match is failure because a DNS lookup failed.
1678
ebcb507f
PH
1679PH/40 RM_COMMAND is now used in the building process.
1680
c35e155c
PH
1681PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1682 the "build-* directories that it finds.
1683
95d1f782
PH
1684PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1685 address in a domain literal was a prefix of an interface address.
1686
fd6de02e
PH
1687PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1688 when verifying a sender address, unless rewrite_headers is false.
1689
58de37c5
PH
1690PH/44 Wrote a long comment about why errors_to addresses are verified as
1691 recipients, not senders.
1692
261cf466
TF
1693TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1694 the ratelimit ACL was added.
1695
3ee512ff
PH
1696PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1697
e08c430f
PH
1698PH/46 Added extra information about PostgreSQL errors to the error string.
1699
bef5a11f
PH
1700PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1701 avoiding the need to install special zones in a real server. This is
1702 backwards compatible; if it can't find the fake resolver, it drops back.
1703 Thus, both old and new test suites can be run.
1704
7546de58
TF
1705TF/02 Added util/ratelimit.pl
1706
e5d5a95f
TF
1707TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1708 clock is set back in time.
1709
2e88a017
TF
1710TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1711 Candler <B.Candler@pobox.com>.
1712
a5f65aa4
TF
1713TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1714 OK for addresses that are the result of redirections.
1715
e7726cbf
PH
1716PH/48 A number of further additions for the benefit of the new test suite,
1717 including a fake gethostbyname() that interfaces to the fake DNS resolver
1718 (see PH/47 above).
1719
a7fdad5b
TF
1720TF/06 The fix for widen_domains has also been applied to qualify_single and
1721 search_parents which are the other dnslookup options that can cause
1722 header rewrites.
1723
6af56900
PH
1724PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1725 type ("H").
1726
0925ede6
PH
1727PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1728
66afa403
TF
1729TF/07 Exim produced the error message "an SRV record indicated no SMTP
1730 service" if it encountered an MX record with an empty target hostname.
1731 The message is now "an MX or SRV record indicated no SMTP service".
1732
0154e85a
TF
1733TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1734 if the DNS of the sending site is misconfigured. This is quite a
1735 common situation. This change restores the behaviour of treating a
1736 helo verification defer as a failure.
1737
16f12c76
PH
1738PH/51 If self=fail was set on a router, the bounce message did not include the
1739 actual error message.
1740
bbe902f0 1741
e5a9dba6
PH
1742Exim version 4.52
1743-----------------
1744
1745TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1746
22c3b60b
PH
1747PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1748 command itself ended in error, the underlying message about the transport
1749 filter timeout was being overwritten with the pipe command error. Now the
1750 underlying error message should be appended to the second error message.
1751
06a9b4b5
PH
1752TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1753
c1ac6996
PH
1754PH/02 Reduce the amount of output that "make" produces by default. Full output
1755 can still be requested.
1756
9c7a242c
PH
1757PH/03 The warning log line about a condition test deferring for a "warn" verb
1758 was being output only once per connection, rather than after each
1759 occurrence (because it was using the same function as for successful
1760 "warn" verbs). This seems wrong, so I have changed it.
1761
87ba3f5f
PH
1762TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1763 it should not have, which might have caused a crash in the right
1764 circumstances, but probably never did.
1765
1766PH/04 Installed a modified version of Tony Finch's patch to make submission
1767 mode fix the return path as well as the Sender: header line, and to
1768 add a /name= option so that you can make the user's friendly name appear
1769 in the header line.
1770
29aba418
TF
1771TF/03 Added the control = fakedefer ACL modifier.
1772
fe0dab11
TF
1773TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1774 Mark Lowes for thorough testing.
870f6ba8 1775
11d337a4
TK
1776TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1777
1778TK/03 Merged latest SRS patch from Miles Wilton.
1779
415c8f3b
PH
1780PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1781 with the definition in sysexits.h (which is #included earlier).
1782 Fortunately, Exim does not actually use EX_OK. The code used to try to
1783 preserve the sysexits.h value, by assumimg that macro definitions were
1784 scanned for macro replacements. I have been disabused of this notion,
1785 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1786
958541e9
PH
1787PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1788 in the smtp transport. When a block could not be written in a single
1789 write() function, the timeout was being re-applied to each part-write.
1790 This seems wrong - if the receiver was accepting one byte at a time it
1791 would take for ever. The timeout is now adjusted when this happens. It
1792 doesn't have to be particularly precise.
1793
c206415f
TK
1794TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1795 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1796
2a4be8f9
PH
1797PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1798 without a domain if the check to <postmaster@domain> fails.
1799
1cba11c5
SC
1800SC/01 Eximstats: added -xls and the ability to specify output files
1801 (patch written by Frank Heydlauf).
1802
1803SC/02 Eximstats: use FileHandles for outputing results.
1804
1805SC/03 Eximstats: allow any combination of xls, txt, and html output.
1806
1807SC/04 Eximstats: fixed display of large numbers with -nvr option
1808
1809SC/05 Eximstats: fixed merging of reports with empty tables.
1810
1811SC/06 Eximstats: added the -include_original_destination flag
1812
1813SC/07 Eximstats: removed tabs and trailing whitespace.
1814
1005d00e
TK
1815TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1816
1817TK/06 MBOX spool code: Add real "From " MBOX separator line
1818 so the .eml file is really in mbox format (even though
1819 most programs do not really care). Patch from Alex Miller.
1820
1821TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1822 The latter is generated from $received_to and is only set if the
1823 message has one envelope recipient. SA can use these headers,
1824 obviously out-of-the-box. Patch from Alex Miller.
1825
9b4768fa
PH
1826PH/08 The ${def test on a variable was returning false if the variable's
1827 value was "0", contrary to what the specification has always said!
1828 The result should be true unless the variable is empty.
1829
1830PH/09 The syntax error of a character other than { following "${if
1831 def:variable_name" (after optional whitespace) was not being diagnosed.
1832 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1833 accidental colon was present, for example, could give incorrect results.
1834
0d7eb84a
PH
1835PH/10 Tidied the code in a number of places where the st_size field of a stat()
1836 result is used (not including appendfile, where other changes are about
1837 to be made).
1838
1839PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1840 This involved changing a lot of size variables from int to off_t. It
1841 should work with maildirs and everything.
1842
40727bee
TK
1843TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1844 spamd dying while we are connected to it.
1845
554d2369
TF
1846TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1847 <jgh@wizmail.org>
1848
1f922db1
PH
1849PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1850 function for BDB 4.3.
1851
ef213c3b
PH
1852PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1853
8ac170f3
PH
1854PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1855 the sources for PCRE have been re-arranged and more files are now
1856 involved.
1857
b1c749bb
PH
1858PH/15 The code I had for printing potentially long long variables in PH/11
1859 above was not the best (it lost precision). The length of off_t variables
1860 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1861 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1862 to be "long long int" or "long int". This is needed for the internal
1863 formatting function string_vformat().
b1c749bb 1864
4aac9b49
PH
1865PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1866 the configuration file to be ":syslog", then the script "guesses" where
1867 the logs files are, rather than using the compiled in default. In our
1868 case the guess is not the same as the compiled default, so the script
1869 suddenly stopped working when I started to use syslog. The patch checks
1870 to see if log_file_path is "". If so, it attempts to read it from exim
1871 with no configuration file to get the compiled in version, before it
1872 falls back to the previous guessing code."
1873
294520c8
TK
1874TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1875 implementing BATV in an Exim configuration. See NewStuff for the gory
1876 details.
1877
5bd022fe
PH
1878PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1879 Makefile that are specific to HP-UX.
1880
90e9ce59
PH
1881PH/18 If the "use_postmaster" option was set for a recipient callout together
1882 with the "random" option, the postmaster address was used as the MAIL
1883 FROM address for the random test, but not for the subsequent recipient
1884 test. It is now used for both.
1885
5ea81592
PH
1886PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1887 patch removes a few documentation additions to RFC 3028, because the
1888 latest draft now contains them. It adds the new en;ascii-case comparator
1889 and a new error check for 8bit text in MIME parts. Comparator and
1890 require names are now matched exactly. I enabled the subaddress
1891 extension, but it is not well tested yet (read: it works for me)."
1892
c6c2dc1d
PH
1893PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1894 rework some of the code of TK/09 above to avoid the hardwired use of
1895 "%lld" and "long long". Replaced the call to snprintf() with a call to
1896 string_vformat().
1897
fffffe4c
PH
1898PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1899 records point to non-existent hosts", "retry timeout exceeded", and
1900 "retry time not reached for any host after a long failure period".
ca02eafb 1901
9a26b6b2
PH
1902PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1903 experimental DomainKeys support:
1904
1905 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1906 (2) On an error such as an illegally used "control", the wrong name for
1907 the control was given.
1908
1909 These problems did NOT occur unless DomainKeys support was compiled.
1910
4aee0225
PH
1911PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1912
32d668a5
PH
1913PH/24 Added ${if match_ip condition.
1914
8187c3f3
PH
1915PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1916 databases so that it will be absolutely obvious if a crash occurs in the
1917 DB library. This is a regular occurrence (often caused by mis-matched
1918 db.h files).
1919
ff790e47 1920PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1921 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1922 picked up on a user's system that detects such things. There doesn't seem
1923 to be a gcc warning option for this - only an attribute that has to be
1924 put on the function's prototype. It seems that in Fedora Core 4 they have
1925 set this on a number of new functions. No doubt there will be more in due
1926 course.
ff790e47 1927
5417f6d1
PH
1928PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1929 specify a transport. However, if an address that was verified by such a
1930 router was the subject of a callout, Exim crashed because it tried to
1931 read the rcpt_include_affixes from the non-existent transport. Now it
1932 just assumes that the setting of that option is false. This bug was
1933 introduced by 4.51/PH/31.
1934
59cf8544
PH
1935PH/28 Changed -d+all to exclude +memory, because that information is very
1936 rarely of interest, but it makes the output a lot bigger. People tend to
1937 do -d+all out of habit.
1938
e7ad8a65
PH
1939PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1940 code in os-type was giving problems when libc.so lives in lib64, like on
1941 x86_64 Fedora Core.
1942
ade42478
PH
1943PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1944 aren't the modern standard, and it seems that some systems' include files
1945 don't always have them. Exim was already checking for some of the newer
1946 ones like T_AAAA, and defining it itself. I've added checks for all the
1947 record types that Exim uses.
1948
182ad5cf
PH
1949PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1950 not automatically generating a new one, as it is supposed to. This
1951 prevented TLS from working. If the file did exist, but contained invalid
1952 data, a new version was generated, as expected. It was only the case of a
1953 non-existent file that was broken.
1954
b0d9fc80
TK
1955TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1956 with a change in libdomainkeys > 0.64.
1957
1958TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1959 from DNS. If the selector record carries the flag, it now has
1960 precedence over the domain-wide flag.
1961
1962TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1963
47c7a64a
PH
1964PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1965 the use of a port name that isn't defined in /etc/services) occurred, the
1966 message was deferred as in a normal delivery, and thus remained on the
1967 spool, instead of being failed because of the mua_wrapper setting. This
1968 is now fixed, and I tidied up some of the mua_wrapper messages at the
1969 same time.
1970
a388bce4
SC
1971SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1972 the messages in a hash of arrays rather than using individual hashes.
1973 This is a bit cleaner and results in dramatic memory savings, albeit
1974 at a slight CPU cost.
1975
1976SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1977 as requested by Marc Sherman.
1978
1979SC/10 Eximstats: added histograms for user specified patterns as requested
1980 by Marc Sherman.
1981
0793e4ed
SC
1982SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1983
c58b88df
PH
1984PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1985 fopen() in the content-scanning modules that did not already have it.
1986
e7ad8a65 1987
7982096b
PH
1988Exim version 4.51
1989-----------------
1990
1a46a8c5
PH
1991TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1992 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1993
2f079f46 1994TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1995
1996TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1997
1998PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1999 to test Sieve filters that use "vacation".
2000
2001PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2002 that changes the way the GnuTLS parameters are stored in the cache file.
2003 The new format can be generated externally. For backward compatibility,
2004 if the data in the cache doesn't make sense, Exim assumes it has read an
2005 old-format file, and it generates new data and writes a new file. This
2006 means that you can't go back to an older release without removing the
2007 file.
2008
2009PH/03 A redirect router that has both "unseen" and "one_time" set does not
2010 work if there are any delivery delays because "one_time" forces the
2011 parent to be marked "delivered", so its unseen clone is never tried
2012 again. For this reason, Exim now forbids the simultaneous setting of
2013 these two options.
2014
2015PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2016 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2017 entry if you want to know the details. The fix, however, neglected to
2018 consider the case when local delivery batching is involved. The test for
2019 "previously delivered" was not happening when checking to see if an
2020 address could be batched with a previous (undelivered) one; under
2021 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2022 address.
1a46a8c5
PH
2023
2024PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2025 in its include files, and this causes problems building Exim.
2026
2027PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2028 header_syntax) but Exim was just ignoring anything given after a slash.
2029 In particular, this caused confusion with an attempt to use "verify =
2030 reverse_host_lookup/defer_ok". An error is now given when options are
2031 supplied for verify items that do not have them. (Maybe reverse_host_
2032 lookup should have a defer_ok option, but that's a different point.)
2033
2034PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2035 defined by RFC 821) to 2048, because there were problems with some AUTH
2036 commands, and RFC 1869 says the size should be increased for extended
2037 SMTP commands that take arguments.
2038
2039PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2040 Finch).
2041
2042PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2043 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2044
49c2d5ea
PH
2045PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2046 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2047 whatever). Otherwise the password may appear in the log. Following change
2048 PH/42 below, there is no longer a chance of it appearing in a bounce
2049 message.
49c2d5ea 2050
bf759a8b
PH
2051PH/11 Installed exipick version 20050225.0 from John Jetmore.
2052
83364d30
PH
2053PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2054 of its addresses was ever tried. (Bugzilla bug #2.)
2055
7999bbd7
PH
2056PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2057 the result incorrectly in the debug output. (It correctly added a newline
2058 to what was transported.)
2059
7dbf77c9
PH
2060TF/01 Added $received_time.
2061
74e0617f
PH
2062PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2063 commented out examples of how to interface to a virus scanner and to
2064 SpamAssassin. Also added commented examples of av_scanner and
2065 spamd_address settings.
2066
2f079f46
PH
2067PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2068 and controls are allowed in which ACLs. There were a couple of minor
2069 errors. Some of the entries in the conditions table (which is a table of
2070 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2071 negation of where the condition IS allowed.
2072
8c841523
PH
2073PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2074
7766a4f0
PH
2075PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2076 header file does not have a version number, so I've had to invent a new
2077 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2078 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2079 radiusclient), but it was contributed by a Radius user.
2080
8b417f2c
PH
2081PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2082 files or directories, for OpenSSL.
2083
901f42cb
PH
2084PH/19 When an Exim process that is running as root has to create an Exim log
2085 file, it does so in a subprocess that runs as exim:exim so as to get the
2086 ownership right at creation (otherwise, other Exim processes might see
2087 the file with the wrong ownership). There was no test for failure of this
2088 fork() call, which would lead to the process getting stuck as it waited
2089 for a non-existent subprocess. Forks do occasionally fail when resources
2090 run out. I reviewed all the other calls to fork(); they all seem to check
2091 for failure.
2092
f9b9210e
PH
2093PH/20 When checking for unexpected SMTP input at connect time (before writing
2094 the banner), Exim was not dealing correctly with a non-positive return
2095 from the read() function. If the client had disconnected by this time,
2096 the result was a log entry for a synchronization error with an empty
2097 string after "input=" when read() returned zero. If read() returned -1
2098 (an event I could not check), uninitialized data bytes were printed.
2099 There were reports of junk text (parts of files, etc) appearing after
2100 "input=".
2101
54cdb463
PH
2102PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2103
cf00dad6
PH
2104PH/22 Added support for macro redefinition, and (re)definition in between
2105 driver and ACL definitions.
2106
acb1b346
PH
2107PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2108 forgetting to use the resulting value; it was using the unexpanded value.
2109
c5ddb310
PH
2110PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2111 hadn't been configured. The fix is from Juergen Kreileder, who
2112 understands it better than I do:
2113
2114 "Here's what I see happening with three configured cyrus_sasl
2115 authenticators configured (plain, login, cram-md5):
2116
2117 On startup auth_cyrus_sasl_init() gets called for each of these.
2118 This means three calls to sasl_listmech() without a specified mech_list.
2119 => SASL tests which mechs of all available mechs actually work
2120 => three warnings about OTP not working
2121 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2122
2123 With the patch, sasl_listmech() also gets called three times. But now
2124 SASL's mech_list option is set to the server_mech specified in the the
2125 authenticator. Or in other words, the answer from sasl_listmech()
2126 gets limited to just the mech you're testing for (which is different
2127 for each call.)
2128 => the return list contains just 'plain' or 'login', 'cram-md5' or
2129 nothing depending on the value of ob->server_mech.
2130
2131 I've just tested the patch: Authentication still works fine,
2132 unavailable mechs specified in the exim configuration are still
2133 caught, and the auth.log warnings about OTP are gone."
2134
31619da6
PH
2135PH/25 When debugging is enabled, the contents of the command line are added
2136 to the debugging output, even when log_selector=+arguments is not
2137 specified.
2138
bebaf0fc
PH
2139PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2140 answer is "GNU", and only if the return is "GNU/something" is the answer
2141 "Linux".
2142
475fe28a
PH
2143PH/27 $acl_verify_message is now set immediately after the failure of a
2144 verification in an ACL, and so is available in subsequent modifiers. In
2145 particular, the message can be preserved by coding like this:
2146
2147 warn !verify = sender
2148 set acl_m0 = $acl_verify_message
2149
2150 Previously, $acl_verify_message was set only while expanding "message"
2151 and "log_message" when a very denied access.
2152
7e8bec7a
PH
2153PH/28 Modified OS/os.c-Linux with
2154
2155 -#ifndef OS_LOAD_AVERAGE
2156 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2157
2158 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2159 nomenclature these days.)
2160
e4a89c47
PH
2161PH/29 Installed patch from the Sieve maintainer that adds the options
2162 sieve_useraddress and sieve_subaddress to the redirect router.
2163
5ca2a9a1
PH
2164PH/30 In these circumstances:
2165 . Two addresses routed to the same list of hosts;
2166 . First host does not offer TLS;
2167 . First host accepts first address;
2168 . First host gives temporary error to second address;
2169 . Second host offers TLS and a TLS session is established;
2170 . Second host accepts second address.
2171 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2172 and peerdn, if requested) that were in fact used only for the second
2173 address.
7e8bec7a 2174
c688b954
PH
2175PH/31 When doing a callout as part of verifying an address, Exim was not paying
2176 attention to any local part prefix or suffix that was matched by the
2177 router that accepted the address. It now behaves in the same way as it
2178 does for delivery: the affixes are removed from the local part unless
2179 rcpt_include_affixes is set on the transport.
2180
fed77020
PH
2181PH/32 Add the sender address, as F=<...>, to the log line when logging a
2182 timeout during the DATA phase of an incoming message.
2183
7fe1560f
PH
2184PH/33 Sieve envelope tests were broken for match types other than :is. I have
2185 applied a patch sanctioned by the Sieve maintainer.
c688b954 2186
ebb6e6d5
PH
2187PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2188 the uid or gid is negative. A case of a negative gid caused this to be
2189 noticed. The fix allows for either to be negative.
2190
9c4e8f60
PH
2191PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2192 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2193 overlooked.
2194
2195PH/36 The change PH/12 above was broken. Fixed it.
2196
d7174846
PH
2197PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2198 the grounds that routing the same address twice would always produce the
2199 same answer. This might have been true once, but it is certainly no
2200 longer true now. Routing a child address may depend on the previous
2201 routing that produced that child. Some complicated redirection strategies
2202 went wrong when messages had multiple recipients, and made Exim's
2203 behaviour dependent on the order in which the addresses were given.
2204
2205 I have moved the duplicate checking until after the routing is complete.
2206 Exim scans the addresses that are assigned to local and remote
2207 transports, and removes any duplicates. This means that more work will be
2208 done, as duplicates will always all be routed, but duplicates are
2209 presumably rare, so I don't expect this is of any significance.
2210
2211 For deliveries to pipes, files, and autoreplies, the duplicate checking
2212 still happens during the routing process, since they are not going to be
2213 routed further.
2214
cfe75fc3
PH
2215PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2216 It corrects a timeout issue with spamd. This is Ian's comment: "The
2217 background is that sometimes spamd either never reads data from a
2218 connection it has accepted, or it never writes response data. The exiscan
2219 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2220 blindly assumes that writes won't block so it may never time out."
2221
be22d70e
PH
2222PH/39 Allow G after quota size as well as K and M.
2223
0612b098
PH
2224PH/40 The value set for $authenticated_id in an authenticator may not contain
2225 binary zeroes or newlines because the value is written to log lines and
2226 to spool files. There was no check on this. Now the value is run through
2227 the string_printing() function so that such characters are converted to
2228 printable escape sequences.
2229
2e0c1448
PH
2230PH/41 $message_linecount is a new variable that contains the total number of
2231 lines in the message. Compare $body_linecount, which is the count for the
2232 body only.
2233
447d236c
PH
2234PH/42 Exim no longer gives details of delivery errors for specific addresses in
2235 bounce and delay warning messages, except in certain special cases, which
2236 are as follows:
2237
2238 (a) An SMTP error message from a remote host;
2239 (b) A message specified in a :fail: redirection;
2240 (c) A message specified in a "fail" command in a system filter;
2241 (d) A message specified in a FAIL return from the queryprogram router;
2242 (e) A message specified by the cannot_route_message router option.
2243
2244 In these cases only, Exim does include the error details in bounce and
2245 warning messages. There are also a few cases where bland messages such
2246 as "unrouteable address" or "local delivery error" are given.
2247
d20976dc
PH
2248PH/43 $value is now also set for the "else" part of a ${run expansion.
2249
f656d135
PH
2250PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2251 being worked on, but at least Exim now implements the latest version to
2252 play with."
2253
2e2a30b4
PH
2254PH/45 In a pipe transport, although a timeout while waiting for the pipe
2255 process to complete was treated as a delivery failure, a timeout while
2256 writing the message to the pipe was logged, but erroneously treated as a
2257 successful delivery. Such timeouts include transport filter timeouts. For
2258 consistency with the overall process timeout, these timeouts are now
2259 treated as errors, giving rise to delivery failures by default. However,
2260 there is now a new Boolean option for the pipe transport called
2261 timeout_defer, which, if set TRUE, converts the failures into defers for
2262 both kinds of timeout. A transport filter timeout is now identified in
2263 the log output.
2264
9176e9f0
PH
2265PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2266 systems where "make" and "gmake" are different, calling "gmake" at top
2267 level broke things. I've arranged for the value of $(MAKE) to be passed
2268 from the Makefile to this script so that it can call the same version of
2269 "make".
2270
7982096b 2271
bbe902f0
PH
2272A note about Exim versions 4.44 and 4.50
2273----------------------------------------
2274
2275Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2276changes of various kinds. As a consequence, a big documentation update was
2277needed. This delayed the release for rather longer than seemed good, especially
2278in the light of a couple of (minor) security issues. Therefore, the changes
2279that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2280release. So 4.44 and 4.50 are in effect two different branches that both start
2281from 4.43.
2282
2283I have left the 4.50 change log unchanged; it contains all the changes since
22844.43. The change log for 4.44 is below; many of its items are identical to
2285those for 4.50. This seems to be the most sensible way to preserve the
2286historical information.
2287
2288
f7b63901 2289Exim version 4.50
495ae4b0
PH
2290-----------------
2291
5fe762f6
PH
2292 1. Minor wording change to the doc/README.SIEVE file.
2293
139059f6 2294 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2295 computation of the current number of files was incorrect.
495ae4b0 2296
7086e875
PH
2297 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2298 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2299 place.
2300
35af9f61
PH
2301 4. Give more explanation in the error message when the command for a transport
2302 filter fails to execute.
2303
b668c215
PH
2304 5. There are several places where Exim runs a non-Exim command in a
2305 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2306 was being done only for the command run by the queryprogram router. It is
2307 now done for all such subprocesses. The other cases are: ${run, transport
2308 filters, and the commands run by the lmtp and pipe transports.
2309
a494b1e1
PH
2310 6. Added CONFIGURE_GROUP build-time option.
2311
2312 7. Some older OS have a limit of 256 on the maximum number of file
2313 descriptors. Exim was using setrlimit() to set 1000 as a large value
2314 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2315 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2316
c5fcb476
PH
2317 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2318 was an oversight, and furthermore, ever since the addition of extra
2319 controls (e.g. 4.43/32), the checks on when to allow different forms of
2320 "control" were broken. There should now be diagnostics for all cases when a
2321 control that does not make sense is encountered.
2322
69358f02
PH
2323 9. Added the /retain_sender option to "control=submission".
2324
5be20824
PH
232510. $recipients is now available in the predata ACL (oversight).
2326
eb2c0248
PH
232711. Tidy the search cache before the fork to do a delivery from a message
2328 received from the command line. Otherwise the child will trigger a lookup
2329 failure and thereby defer the delivery if it tries to use (for example) a
2330 cached ldap connection that the parent has called unbind on.
2331
2a3eea10
PH
233212. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2333 of $address_data from the recipient verification was clobbered by the
2334 sender verification.
2335
233613. The value of address_data from a sender verification is now available in
2337 $sender_address_data in subsequent conditions in the ACL statement.
2338
23c7ff99
PH
233914. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2340
4deaf07d
PH
234115. Added a new option "connect=<time>" to callout options, to set a different
2342 connection timeout.
2343
926e1192
PH
234416. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2345 was its contents. (It was OK if the option was not defined at all.)
2346
650edc6f
PH
234717. A "Completed" log line is now written for messages that are removed from
2348 the spool by the -Mrm option.
2349
2c7db3f5
PH
235018. New variables $sender_verify_failure and $recipient_verify_failure contain
2351 information about exactly what failed.
2352
3d235903
PH
235319. Added -dd to debug only the daemon process.
2354
7c7ad977
PH
235520. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2356 handles timeouts, both on the server side and network timeouts. Renamed the
2357 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2358
981756db
PH
235921. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2360 It is now set to "smtps".
2361
d4eb88df
PH
236222. $host_address is now set to the target address during the checking of
2363 ignore_target_hosts.
2364
236523. When checking ignore_target_hosts for an ipliteral router, no host name was
2366 being passed; this would have caused $sender_host_name to have been used if
2367 matching the list had actually called for a host name (not very likely,
2368 since this list is usually IP addresses). A host name is now passed as
2369 "[x.x.x.x]".
2370
7d468ab8
PH
237124. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2372 code that specifies a non-restarting handler (typically sigaction() in
2373 modern systems) in an attempt to fix a rare and obscure crash bug.
2374
237525. Narrowed the window for a race in the daemon that could cause it to ignore
2376 SIGCHLD signals. This is not a major problem, because they are used only to
2377 wake it up if nothing else does.
2378
62c0818f
PH
237926. A malformed maildirsize file could cause Exim to calculate negative values
2380 for the mailbox size or file count. Odd effects could occur as a result.
2381 The maildirsize information is now recalculated if the size or filecount
2382 end up negative.
2383
26034054
PH
238427. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2385 support for a long time. Removed HAVE_SYS_VFS_H.
2386
af66f652
PH
238728. Installed the latest version of exipick from John Jetmore.
2388
90af77f4
PH
238929. In an address list, if the pattern was not a regular expression, an empty
2390 subject address (from a bounce message) matched only if the pattern was an
2391 empty string. Non-empty patterns were not even tested. This was the wrong
2392 because it is perfectly reasonable to use an empty address as part of a
2393 database query. An empty address is now tested by patterns that are
2394 lookups. However, all the other forms of pattern expect the subject to
2395 contain a local part and a domain, and therefore, for them, an empty
2396 address still always fails if the pattern is not itself empty.
2397
d8ef3577
PH
239830. Exim went into a mad DNS loop when attempting to do a callout where the
2399 host was specified on an smtp transport, and looking it up yielded more
2400 than one IP address.
2401
5cb8cbc6
PH
240231. Re-factored the code for checking spool and log partition space into a
2403 function that finds that data and another that does the check. The former
2404 is then used to implement four new variables: $spool_space, $log_space,
2405 $spool_inodes, and $log_inodes.
2406
14702f5b
PH
240732. The RFC2047 encoding function was originally intended for short strings
2408 such as real names; it was not keeping to the 75-character limit for
2409 encoded words that the RFC imposes. It now respects the limit, and
2410 generates multiple encoded words if necessary. To be on the safe side, I
2411 have increased the buffer size for the ${rfc2047: expansion operator from
2412 1024 to 2048 bytes.
2413
063b1e99
PH
241433. It is now permitted to omit both strings after an "if" condition; if the
2415 condition is true, the result is "true". As before, when the second string
2416 is omitted, a false condition yields an empty string. This makes it less
2417 cumbersome to write custom ACL and router conditions.
2418
652e1b65
PH
241934. Failure to deliver a bounce message always caused it to be frozen, even if
2420 there was an errors_to setting on the router. The errors_to setting is now
2421 respected.
2422
6f0c9a4f
PH
242335. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2424 canonical form (fully expanded) before being placed in
2425 $sender_host_address.
2426
33397d19
PH
242736. The table in the code that translates DNS record types into text (T_A to
2428 "A" for instance) was missing entries for NS and CNAME. It is just possible
2429 that this could have caused confusion if both these types were looked up
2430 for the same domain, because the text type is used as part of Exim's
2431 per-process caching. But the chance of anyone hitting this buglet seems
2432 very small.
2433
7bb56e1f
PH
243437. The dnsdb lookup has been extended in a number of ways.
2435
2436 (1) There is a new type, "zns", which walks up the domain tree until it
2437 finds some nameserver records. It should be used with care.
2438
ea3bc19b
PH
2439 (2) There is a new type, "mxh", which is like "mx" except that it returns
2440 just the host names, not the priorities.
2441
2442 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2443 looked up. The behaviour when one of the lookups defers can be
2444 controlled by a keyword.
7bb56e1f 2445
ea3bc19b 2446 (4) It is now possible to specify the separator character for use when
7bb56e1f 2447 multiple records are returned.
33397d19 2448
0bcb2a0e
PH
244938. The dnslists ACL condition has been extended: it is now possible to supply
2450 a list of IP addresses and/or domains to be looked up in a particular DNS
2451 domain.
2452
2ac0e484
PH
245339. Added log_selector=+queue_time_overall.
2454
4e1fde53
PH
245540. When running the queue in the test harness, wait just a tad after forking a
2456 delivery process, to get repeatability of debugging output.
2457
de365ded
PH
245841. Include certificate and key file names in error message when GnuTLS fails
2459 to set them up, because the GnuTLS error message doesn't include the name
2460 of the failing file when there is a problem reading it.
2461
f05da2e8
PH
246242. Allow both -bf and -bF in the same test run.
2463
d6453af2
PH
246443. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2465
f7b63901
PH
246644. The "Exiscan patch" is now merged into the mainline Exim source.
2467
246845. Sometimes the final signoff response after QUIT could fail to get
2469 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2470 < 0 before doing a fflush(). This bug looks as though it goes back to the
2471 introduction of TLS in release 3.20, but "sometimes" must have been rare
2472 because the tests only now provoked it.
2473
a444213a
PH
247446. Reset the locale to "C" after calling embedded Perl, in case it was changed
2475 (this can affect the format of dates).
2476
0ec020ea
PH
247747. exim_tidydb, when checking for the continued existence of a message for
2478 which it has found a message-specific retry record, was not finding
2479 messages that were in split spool directories. Consequently, it was
2480 deleting retry records that should have stayed in existence.
2481
b1206957
PH
248248. Steve fixed some bugs in eximstats.
2483
248449. The SPA authentication driver was not abandoning authentication and moving
2485 on to the next authenticator when an expansion was forced to fail,
2486 contradicting the general specification for all authenticators. Instead it
2487 was generating a temporary error. It now behaves as specified.
2488
26dd5a95
PH
248950. The default ordering of permitted cipher suites for GnuTLS was pessimal
2490 (the order specifies the preference for clients). The order is now AES256,
2491 AES128, 3DES, ARCFOUR128.
2492
343b2385
PH
249351. Small patch to Sieve code - explicitly set From: when generating an
2494 autoreply.
2495
1c5466b9
PH
249652. Exim crashed if a remote delivery caused a very long error message to be
2497 recorded - for instance if somebody sent an entire SpamAssassin report back
2498 as a large number of 550 error lines. This bug was coincidentally fixed by
2499 increasing the size of one of Exim's internal buffers (big_buffer) that
2500 happened as part of the Exiscan merge. However, to be on the safe side, I
2501 have made the code more robust (and fixed the comments that describe what
2502 is going on).
2503
55ee9ee3
PH
250453. Now that there can be additional text after "Completed" in log lines (if
2505 the queue_time_overall log selector is set), a one-byte patch to exigrep
2506 was needed to allow it to recognize "Completed" as not the last thing in
2507 the line.
2508
d38f8232
PH
250954. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2510 patch that reportedly fixes this has been added. I am not expert enough to
2511 create a test for it. This is what the patch creator wrote:
2512
2513 "I found a little strange behaviour of ldap code when working with
2514 Windows 2003 AD Domain, where users was placed in more than one
2515 Organization Units. When I tried to give exim partial DN, the exit code
2516 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2517 But simultaneously result of request was absolutely normal ldap result,
2518 so I produce this patch..."
2519
3295e65b
PH
2520 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2521 REFERENCE, so I have modified the code to exclude the patch when that macro
2522 is not defined.
2523
7102e136
PH
252455. Some experimental protocols are using DNS PTR records for new purposes. The
2525 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2526 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2527 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2528 CAN-2005-0021
7102e136 2529
3ca0ba97
PH
253056. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2531
c2bcbe20
PH
253257. Double the size of the debug message buffer (to 2048) so that more of very
2533 long debug lines gets shown.
2534
18ce445d
PH
253558. The exicyclog utility now does better if the number of log files to keep
2536 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2537
1f5b4c3d
PH
253859. Two changes related to the smtp_active_hostname option:
2539
2540 (1) $smtp_active_hostname is now available as a variable.
2541 (2) The default for smtp_banner uses $smtp_active_hostname instead
2542 of $primary_hostname.
2543
b975ba52
PH
254460. The host_aton() function is supposed to be passed a string that is known
2545 to be a valid IP address. However, in the case of IPv6 addresses, it was
2546 not checking this. This is a hostage to fortune. Exim now panics and dies
2547 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2548 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2549 components; fortuitously, this particular loophole had already been fixed
2550 by change 4.50/55 above.
2551
2552 If there are any other similar loopholes, the new check in host_aton()
2553 itself should stop them being exploited. The report I received stated that
2554 data on the command line could provoke the exploit when Exim was running as
2555 exim, but did not say which command line option was involved. All I could
2556 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2557 running as the user.
ea3a6f44 2558 CAN-2005-0021
85b87bc2
PH
2559
256061. There was a buffer overflow vulnerability in the SPA authentication code
2561 (which came originally from the Samba project). I have added a test to the
2562 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2563 CAN-2005-0022
b975ba52 2564
17ffcae7
PH
256562. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2566 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2567
d95f9fdb
PH
256863. The daemon start-up calls getloadavg() while still root for those OS that
2569 need the first call to be done as root, but it missed one case: when
2570 deliver_queue_load_max is set with deliver_drop_privilege. This is
2571 necessary for the benefit of the queue runner, because there is no re-exec
2572 when deliver_drop_privilege is set.
2573
86b8287f
PH
257464. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2575 This has been fixed.
2576
60dc5e56
PH
257765. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2578 was in use, was not putting the data itself into the right store pool;
2579 consequently, it could be overwritten for a subsequent message in the same
2580 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2581 the caching.)
2582
533244af
PH
258366. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2584
a5a28604
PH
258567. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2586 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2587 the function were treating the return as a boolean value, which happened to
2588 work because 0=false and not-0=true, but is not correct code.
2589
7e634d24
PH
259068. The host_aton() function was not handling scoped IPv6 addresses (those
2591 with, for example, "%eth0" on the end) correctly.
2592
3e11c26b
PH
259369. Fixed some compiler warnings in acl.c for the bitmaps specified with
2594 negated items (that is, ~something) in unsigned ints. Some compilers
2595 apparently mutter when there is no cast.
2596
6729cf78
PH
259770. If an address verification called from an ACL failed, and did not produce a
2598 user-specific message (i.e. there was only a "system" message), nothing was
2599 put in $acl_verify_message. In this situation, it now puts the system
2600 message there.
2601
00f00ca5
PH
260271. Change 4.23/11 added synchronization checking at the start of an SMTP
2603 session; change 4.31/43 added the unwanted input to the log line - except
2604 that it did not do this in the start of session case. It now does.
2605
c9bdd01c
PH
260672. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2607 This is wrong and can cause the other end to generate a synchronization
2608 error if it is another Exim or anything else that does the synchronization
2609 check. A QUIT command is no longer sent after a timeout.
2610
d43194df
PH
261173. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2612 during host lookups.
2613
fe5b5d0b
PH
261474. The defer_ok option of callout verification was not working if it was used
2615 when verifying addresses in header lines, that is, for this case:
2616
2617 verify = header_sender/callout=defer_ok
2618
76a2d7ba
PH
261975. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2620 those file descriptors could be used for SMTP connections. If anything
2621 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2622 could be sent to the SMTP client, causing chaos. The daemon now opens
2623 stdin, stdout, and stderr to /dev/null when it puts itself into the
2624 background.
2625
262676. Arrange for output from Perl's "warn" command to be written to Exim's main
2627 log by default. The user can override this with suitable Perl magic.
2628
04f7d5b9
PH
262977. The use of log_message on a "discard" ACL verb, which is supposed to add to
2630 the log message when discard triggers, was not working for the DATA ACL or
2631 for the non-SMTP ACL.
2632
bc60667e
PH
263378. Error message wording change in sieve.c.
2634
bb6e88ff
PH
263579. If smtp_accept_max_per_host was set, the number of connections could be
2636 restricted to fewer than expected, because the daemon was trying to set up
2637 a new connection before checking whether the processes handling previous
2638 connections had finished. The check for completed processes is now done
2639 earlier. On busy systems, this bug wouldn't be noticed because something
2640 else would have woken the daemon, and it would have reaped the completed
2641 process earlier.
2642
1e70f85b
PH
264380. If a message was submitted locally by a user whose login name contained one
2644 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2645 It caused a spool format error. I have fixed the spool reading code. A
2646 related problem was that the "from" clause in the Received: line became
2647 illegal because of the space(s). It is now covered by ${quote_local_part.
2648
264981. Included the latest eximstats from Steve (adds average sizes to HTML Top
2650 tables).
2651
4e01f9d6
PH
265282. Updated OS/Makefile-AIX as per message from Mike Meredith.
2653
1ee1cef2
PH
265483. Patch from Sieve maintainer to fix unterminated string problem in
2655 "vacation" handling.
2656
6e2b4ccc
PH
265784. Some minor changes to the Linux configuration files to help with other
2658 OS variants using glibc.
2659
8e669ac1
PH
266085. One more patch for Sieve to update vacation handling to latest spec.
2661
495ae4b0 2662
bbe902f0
PH
2663----------------------------------------------------
2664See the note above about the 4.44 and 4.50 releases.
2665----------------------------------------------------
2666
2667
2668Exim version 4.44
2669-----------------
2670
2671 1. Change 4.43/35 introduced a bug that caused file counts to be
2672 incorrectly computed when quota_filecount was set in an appendfile
2673 transport
2674
2675 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2676 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2677 place.
2678
2679 3. Give more explanation in the error message when the command for a transport
2680 filter fails to execute.
2681
2682 4. There are several places where Exim runs a non-Exim command in a
2683 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2684 was being done only for the command run by the queryprogram router. It is
2685 now done for all such subprocesses. The other cases are: ${run, transport
2686 filters, and the commands run by the lmtp and pipe transports.
2687
2688 5. Some older OS have a limit of 256 on the maximum number of file
2689 descriptors. Exim was using setrlimit() to set 1000 as a large value
2690 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2691 systems. I've change it so that if it can't get 1000, it tries for 256.
2692
2693 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2694 was an oversight, and furthermore, ever since the addition of extra
2695 controls (e.g. 4.43/32), the checks on when to allow different forms of
2696 "control" were broken. There should now be diagnostics for all cases when a
2697 control that does not make sense is encountered.
2698
2699 7. $recipients is now available in the predata ACL (oversight).
2700
2701 8. Tidy the search cache before the fork to do a delivery from a message
2702 received from the command line. Otherwise the child will trigger a lookup
2703 failure and thereby defer the delivery if it tries to use (for example) a
2704 cached ldap connection that the parent has called unbind on.
2705
2706 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2707 of $address_data from the recipient verification was clobbered by the
2708 sender verification.
2709
271010. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2711 was its contents. (It was OK if the option was not defined at all.)
2712
271311. A "Completed" log line is now written for messages that are removed from
2714 the spool by the -Mrm option.
2715
271612. $host_address is now set to the target address during the checking of
2717 ignore_target_hosts.
2718
271913. When checking ignore_target_hosts for an ipliteral router, no host name was
2720 being passed; this would have caused $sender_host_name to have been used if
2721 matching the list had actually called for a host name (not very likely,
2722 since this list is usually IP addresses). A host name is now passed as
2723 "[x.x.x.x]".
2724
272514. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2726 code that specifies a non-restarting handler (typically sigaction() in
2727 modern systems) in an attempt to fix a rare and obscure crash bug.
2728
272915. Narrowed the window for a race in the daemon that could cause it to ignore
2730 SIGCHLD signals. This is not a major problem, because they are used only to
2731 wake it up if nothing else does.
2732
273316. A malformed maildirsize file could cause Exim to calculate negative values
2734 for the mailbox size or file count. Odd effects could occur as a result.
2735 The maildirsize information is now recalculated if the size or filecount
2736 end up negative.
2737
273817. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2739 support for a long time. Removed HAVE_SYS_VFS_H.
2740
ea3a6f44 274118. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2742
274319. Allow an empty sender to be matched against a lookup in an address list.
2744 Previously the only cases considered were a regular expression, or an
2745 empty pattern.
2746
274720. Exim went into a mad DNS lookup loop when doing a callout where the
2748 host was specified on the transport, if the DNS lookup yielded more than
2749 one IP address.
2750
ea3a6f44
NM
275121. The RFC2047 encoding function was originally intended for short strings
2752 such as real names; it was not keeping to the 75-character limit for
2753 encoded words that the RFC imposes. It now respects the limit, and
2754 generates multiple encoded words if necessary. To be on the safe side, I
2755 have increased the buffer size for the ${rfc2047: expansion operator from
2756 1024 to 2048 bytes.
bbe902f0 2757
ea3a6f44
NM
275822. Failure to deliver a bounce message always caused it to be frozen, even if
2759 there was an errors_to setting on the router. The errors_to setting is now
2760 respected.
bbe902f0
PH
2761
276223. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2763 canonical form (fully expanded) before being placed in
2764 $sender_host_address.
2765
276624. Updated eximstats to version 1.33
2767
ea3a6f44
NM
276825. Include certificate and key file names in error message when GnuTLS fails
2769 to set them up, because the GnuTLS error message doesn't include the name
2770 of the failing file when there is a problem reading it.
bbe902f0
PH
2771
277226. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2773 As per change 25.
bbe902f0 2774
ea3a6f44
NM
277527. Reset the locale to "C" after calling embedded Perl, in case it was changed
2776 (this can affect the format of dates).
bbe902f0 2777
ea3a6f44
NM
277828. exim_tidydb, when checking for the continued existence of a message for
2779 which it has found a message-specific retry record, was not finding
2780 messages that were in split spool directories. Consequently, it was
2781 deleting retry records that should have stayed in existence.
bbe902f0
PH
2782
278329. eximstats updated to version 1.35
2784 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2785 1.35 - bugfix such that pie charts by volume are generated correctly
2786
ea3a6f44
NM
278730. The SPA authentication driver was not abandoning authentication and moving
2788 on to the next authenticator when an expansion was forced to fail,
2789 contradicting the general specification for all authenticators. Instead it
2790 was generating a temporary error. It now behaves as specified.
bbe902f0 2791
ea3a6f44
NM
279231. The default ordering of permitted cipher suites for GnuTLS was pessimal
2793 (the order specifies the preference for clients). The order is now AES256,
2794 AES128, 3DES, ARCFOUR128.
bbe902f0 2795
ea3a6f44
NM
279631. Small patch to Sieve code - explicitly set From: when generating an
2797 autoreply.
bbe902f0 2798
ea3a6f44
NM
279932. Exim crashed if a remote delivery caused a very long error message to be
2800 recorded - for instance if somebody sent an entire SpamAssassin report back
2801 as a large number of 550 error lines. This bug was coincidentally fixed by
2802 increasing the size of one of Exim's internal buffers (big_buffer) that
2803 happened as part of the Exiscan merge. However, to be on the safe side, I
2804 have made the code more robust (and fixed the comments that describe what
2805 is going on).
bbe902f0 2806
ea3a6f44
NM
280733. Some experimental protocols are using DNS PTR records for new purposes. The
2808 keys for these records are domain names, not reversed IP addresses. The
2809 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2810 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2811 CAN-2005-0021
2812
ea3a6f44
NM
281334. The host_aton() function is supposed to be passed a string that is known
2814 to be a valid IP address. However, in the case of IPv6 addresses, it was
2815 not checking this. This is a hostage to fortune. Exim now panics and dies
2816 if the condition is not met. A case was found where this could be provoked
2817 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2818 components; fortuitously, this particular loophole had already been fixed
2819 by change 4.50/55 or 4.44/33 above.
2820
2821 If there are any other similar loopholes, the new check in host_aton()
2822 itself should stop them being exploited. The report I received stated that
2823 data on the command line could provoke the exploit when Exim was running as
2824 exim, but did not say which command line option was involved. All I could
2825 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2826 running as the user.
bbe902f0
PH
2827 CAN-2005-0021
2828
ea3a6f44
NM
282935. There was a buffer overflow vulnerability in the SPA authentication code
2830 (which came originally from the Samba project). I have added a test to the
2831 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2832 CAN-2005-0022
2833
ea3a6f44
NM
283436. The daemon start-up calls getloadavg() while still root for those OS that
2835 need the first call to be done as root, but it missed one case: when
2836 deliver_queue_load_max is set with deliver_drop_privilege. This is
2837 necessary for the benefit of the queue runner, because there is no re-exec
2838 when deliver_drop_privilege is set.
bbe902f0 2839
ea3a6f44
NM
284037. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2841 was in use, was not putting the data itself into the right store pool;
2842 consequently, it could be overwritten for a subsequent message in the same
2843 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2844 the caching.)
bbe902f0 2845
ea3a6f44
NM
284638. Sometimes the final signoff response after QUIT could fail to get
2847 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2848 < 0 before doing a fflush(). This bug looks as though it goes back to the
2849 introduction of TLS in release 3.20, but "sometimes" must have been rare
2850 because the tests only now provoked it.
bbe902f0
PH
2851
2852
495ae4b0
PH
2853Exim version 4.43
2854-----------------
2855
2856 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2857 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2858 Now it returns an integer. A number of calls were still expecting a T/F
2859 return. Fortuitously, in all cases, the tests worked in OK situations,
2860 which is the norm. However, things would have gone wrong on any write
2861 failures on the smtp file descriptor. This function is used when sending
2862 messages over SMTP and also when doing verify callouts.
2863
2864 2. When Exim is called to do synchronous delivery of a locally submitted
2865 message (the -odf or -odi options), it no longer closes stderr before doing
2866 the delivery.
2867
2868 3. Implemented the mua_wrapper option.
2869
2870 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2871
2872 5. Implemented the functions header_remove(), header_testname(),
2873 header_add_at_position(), and receive_remove_recipient(), and exported them
2874 to local_scan().
2875
2876 6. If an ACL "warn" statement specified the addition of headers, Exim already
2877 inserted X-ACL-Warn: at the start if there was no header name. However, it
2878 was not making this test for the second and subsequent header lines if
2879 there were newlines in the string. This meant that an invalid header could
2880 be inserted if Exim was badly configured.
2881
2882 7. Allow an ACL "warn" statement to add header lines at the start or after all
2883 the Received: headers, as well as at the end.
2884
2885 8. Added the rcpt_4xx retry error code.
2886
2887 9. Added postmaster_mailfrom=xxx to callout verification option.
2888
288910. Added mailfrom=xxxx to the callout verification option, for verify=
2890 header_sender only.
2891
289211. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2893 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2894
289512. Inserted some casts to stop certain compilers warning when using pointer
2896 differences as field lengths or precisions in printf-type calls (mostly
2897 affecting debugging statements).
2898
289913. Added optional readline() support for -be (dynamically loaded).
2900
290114. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2902 same clock tick as a message's arrival, so that its received time was the
2903 same as the "first fail" time on the retry record, and that message
2904 remained on the queue past the ultimate address timeout, every queue runner
2905 would try a delivery (because it was past the ultimate address timeout) but
2906 after another failure, the ultimate address timeout, which should have then
2907 bounced the address, did not kick in. This was a "< instead of <=" error;
2908 in most cases the first failure would have been in the next clock tick
2909 after the received time, and all would be well.
2910
291115. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2912 being recognized when the domain list was tested by the match_domain
2913 condition in an expansion string.
2914
291516. Added the ${str2b64: operator.
2916
291717. Exim was always calling setrlimit() to set a large limit for the number of
2918 processes, without checking whether the existing limit was already
2919 adequate. (It did check for the limit on file descriptors.) Furthermore,
2920 errors from getrlimit() and setrlimit() were being ignored. Now they are
2921 logged to the main and panic logs, but Exim does carry on, to try to do its
2922 job under whatever limits there are.
2923
292418. Imported PCRE 5.0.
2925
292619. Trivial typo in log message " temporarily refused connection" (the leading
2927 space).
2928
292920. If the log selector return_path_on_delivery was set and an address was
2930 redirected to /dev/null, the delivery process crashed because it assumed
2931 that a return path would always be set for a "successful" delivery. In this
2932 case, the whole delivery is bypassed as an optimization, and therefore no
2933 return path is set.
2934
293521. Internal re-arrangement: the function for sending a challenge and reading
2936 a response while authentication was assuming a zero-terminated challenge
2937 string. It's now changed to take a pointer and a length, to allow for
2938 binary data in such strings.
2939
294022. Added the cyrus_sasl authenticator (code supplied by MBM).
2941
294223. Exim was not respecting finduser_retries when seeking the login of the
2943 uid under which it was called; it was always trying 10 times. (The default
2944 setting of finduser_retries is zero.) Also, it was sleeping after the final
2945 failure, which is pointless.
2946
294724. Implemented tls_on_connect_ports.
2948
294925. Implemented acl_smtp_predata.
2950
295126. If the domain in control=submission is set empty, Exim assumes that the
2952 authenticated id is a complete email address when it generates From: or
2953 Sender: header lines.
2954
295527. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2956 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2957 chown and chgrp in /bin and hostname in /usr/bin.
2958
295928. Exim was keeping the "process log" file open after each use, just as it
2960 does for the main log. This opens the possibility of it remaining open for
2961 long periods when the USR1 signal hits a daemon. Occasional processlog
2962 errors were reported, that could have been caused by this. Anyway, it seems
2963 much more sensible not to leave this file open at all, so that is what now
2964 happens.
2965
296629. The long-running daemon process does not normally write to the log once it
2967 has entered its main loop, and it closes the log before doing so. This is
2968 so that log files can straightforwardly be renamed and moved. However,
2969 there are a couple of unusual error situations where the daemon does write
2970 log entries, and I had neglected to close the log afterwards.
2971
297230. The text of an SMTP error response that was received during a remote
2973 delivery was being truncated at 512 bytes. This is too short for some of
2974 the long messages that one sometimes sees. I've increased the limit to
2975 1024.
2976
297731. It is now possible to make retry rules that apply only when a message has a
2978 specific sender, in particular, an empty sender.
2979
298032. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2981 it possible to be selective about when SMTP synchronization is enforced.
2982
298333. Added "control = caseful_local_part" and "control = "caselower_local_part".
2984
298532. Implemented hosts_connection_nolog.
2986
298733. Added an ACL for QUIT.
2988
298934. Setting "delay_warning=" to disable warnings was not working; it gave a
2990 syntax error.
2991
299235. Added mailbox_size and mailbox_filecount to appendfile.
2993
299436. Added control = no_multiline_responses to ACLs.
2995
299637. There was a bug in the logic of the code that waits for the clock to tick
2997 in the case where the clock went backwards by a substantial amount such
2998 that the microsecond fraction of "now" was more than the microsecond
2999 fraction of "then" (but the whole seconds number was less).
3000
300138. Added support for the libradius Radius client library this is found on
3002 FreeBSD (previously only the radiusclient library was supported).
3003
3004
3005Exim version 4.42
3006-----------------
3007
3008 1. When certain lookups returned multiple values in the form name=value, the
3009 quoting of the values was not always being done properly. Specifically:
3010 (a) If the value started with a double quote, but contained no whitespace,
3011 it was not quoted.
3012 (b) If the value contained whitespace other than a space character (i.e.
3013 tabs or newlines or carriage returns) it was not quoted.
3014 This fix has been applied to the mysql and pgsql lookups by writing a
3015 separate quoting function and calling it from the lookup code. The fix
3016 should probably also be applied to nisplus, ibase and oracle lookups, but
3017 since I cannot test any of those, I have not disturbed their existing code.
3018
3019 2. A hit in the callout cache for a specific address caused a log line with no
3020 reason for rejecting RCPT. Now it says "Previous (cached) callout
3021 verification failure".
3022
3023 3. There was an off-by-one bug in the queryprogram router. An over-long
3024 return line was truncated at 256 instead of 255 characters, thereby
3025 overflowing its buffer with the terminating zero. As well as fixing this, I
3026 have increased the buffer size to 1024 (and made a note to document this).
3027
3028 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3029 when Exim is waiting for an SMTP response from a remote server, Exim
3030 restarts its select() call on the socket, thereby resetting its timeout.
3031 This is not a problem when such interrupts are rare. Somebody set up a cron
3032 job to run exiwhat every 2 minutes, which is less than the normal select()
3033 timeout (5 or 10 minutes). This meant that the select() timeout never
3034 kicked in because it was always reset. I have fixed this by comparing the
3035 time when an interrupt arrives with the time at the start of the first call
3036 to select(). If more time than the timeout has elapsed, the interrupt is
3037 treated as a timeout.
3038
3039 5. Some internal re-factoring in preparation for the addition of Sieve
3040 extensions (by MH). In particular, the "personal" test is moved to a
3041 separate function, and given an option for scanning Cc: and Bcc: (which is
3042 not set for Exim filters).
3043
3044 6. When Exim created an email address using the login of the caller as the
3045 local part (e.g. when creating a From: or Sender: header line), it was not
3046 quoting the local part when it contained special characters such as @.
3047
3048 7. Installed new OpenBSD configuration files.
3049
3050 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3051 try to make them clearer.
3052
3053 9. Callout options, other than the timeout value, were being ignored when
3054 verifying sender addresses in header lines. For example, when using
3055
3056 verify = header_sender/callout=no_cache
3057
3058 the cache was (incorrectly) being used.
3059
306010. Added a missing instance of ${EXE} to the exim_install script; this affects
3061 only the Cygwin environment.
3062
306311. When return_path_on_delivery was set as a log selector, if different remote
3064 addresses in the same message used different return paths and parallel
3065 remote delivery occurred, the wrong values would sometimes be logged.
3066 (Whenever a remote delivery process finished, the return path value from
3067 the most recently started remote delivery process was logged.)
3068
306912. RFC 3848 specifies standard names for the "with" phrase in Received: header
3070 lines when AUTH and/or TLS are in use. This is the "received protocol"
3071 field. Exim used to use "asmtp" for authenticated SMTP, without any
3072 indication (in the protocol name) for TLS use. Now it follows the RFC and
3073 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3074 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3075 names appear in log lines as well as in Received: header lines.
3076
307713. Installed MH's patches for Sieve to add the "copy" and "vacation"
3078 extensions, and comparison tests, and to fix some bugs.
3079
308014. Changes to the "personal" filter test:
3081
3082 (1) The test was buggy in that it was just doing the equivalent of
3083 "contains" tests on header lines. For example, if a user's address was
3084 anne@some.where, the "personal" test would incorrectly be true for
3085
3086 To: susanne@some.where
3087
3088 This test is now done by extracting each address from the header in turn,
3089 and checking the entire address. Other tests that are part of "personal"
3090 are now done using regular expressions (for example, to check local parts
3091 of addresses in From: header lines).
3092
3093 (2) The list of non-personal local parts in From: addresses has been
3094 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3095 taken from the Sieve specification recommendations.
3096
3097 (3) If the message contains any header line starting with "List-" it is
3098 treated as non-personal.
3099
3100 (4) The test for "circular" in the Subject: header line has been removed
3101 because it now seems ill-conceived.
3102
310315. Minor typos in src/EDITME comments corrected.
3104
310516. Installed latest exipick from John Jetmore.
3106
310717. If headers_add on a router specified a text string that was too long for
3108 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3109 of string_sprintf() is now avoided.
3110
311118. $message_body_size was not set (it was always zero) when running the DATA
3112 ACL and the local_scan() function.
3113
311419. For the "mail" command in an Exim filter, no default was being set for
3115 the once_repeat time, causing a random time value to be used if "once" was
3116 specified. (If the value happened to be <= 0, no repeat happened.) The
3117 default is now 0s, meaning "never repeat". The "vacation" command was OK
3118 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3119 (I found it when inspecting the code).
3120
312120. There is now an overall timeout for performing a callout verification. It
3122 defaults to 4 times the callout timeout, which applies to individual SMTP
3123 commands during the callout. The overall timeout applies when there is more
3124 than one host that can be tried. The timeout is checked before trying the
3125 next host. This prevents very long delays if there are a large number of
3126 hosts and all are timing out (e.g. when the network connections are timing
3127 out). The value of the overall timeout can be changed by specifying an
3128 additional sub-option for "callout", called "maxwait". For example:
3129
3130 verify = sender/callout=5s,maxwait=20s
3131
313221. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3133 to the end before writing, but this should make it even safer).
3134
313522. Exim was forgetting that it had advertised PIPELINING for the second and
3136 subsequent messages on an SMTP connection. It was also not resetting its
3137 memory on STARTTLS and an internal HELO.
3138
313923. When Exim logs an SMTP synchronization error within a session, it now
3140 records whether PIPELINING has been advertised or not.
3141
314224. Added 3 instances of "(long int)" casts to time_t variables that were being
3143 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3144 rather than long int.
3145
314625. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3147
314826. Added the never_mail option to autoreply.
3149
3150
3151Exim version 4.41
3152-----------------
3153
3154 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3155 crash if the getsockname() call failed; this can happen if a connection is
3156 closed very soon after it is established. The problem was simply in the
3157 order in which certain operations were done, causing Exim to try to write
3158 to the SMTP stream before it had set up the file descriptor. The bug has
3159 been fixed by making things happen in the correct order.
3160
3161
3162Exim version 4.40
3163-----------------
3164
3165 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3166 before the connection was closed, thus losing the rejection response.
3167
3168 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3169 some early Solaris releases, but causes trouble in current releases where
3170 socklen_t is defined.
3171
3172 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3173 always exist.
3174
3175 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3176 configured.
3177
3178 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3179 that releasing the top of it at the end releases what was used for sub-
3180 expansions (unless the block got too big). However, discard this block if
3181 the first thing is a variable or header, so that we can use its block when
3182 it is dynamic (useful for very large $message_headers, for example).
3183
3184 6. Lookups now cache *every* query, not just the most recent. A new, separate
3185 store pool is used for this. It can be recovered when all lookup caches are
3186 flushed. Lookups now release memory at the end of their result strings.
3187 This has involved some general refactoring of the lookup sources.
3188
3189 7. Some code has been added to the store_xxx() functions to reduce the amount
3190 of flapping under certain conditions.
3191
3192 8. log_incoming_interface used to affect only the <= reception log lines. Now
3193 it causes the local interface and port to be added to several more SMTP log
3194 lines, for example "SMTP connection from", and rejection lines.
3195
3196 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3197
319810. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3199
320011. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3201 could be overwritten at the end of the current message (or the start of a
3202 new message if it was set in a HELO ACL). The value is now preserved for
3203 the duration of the SMTP connection.
3204
320512. If a transport had a headers_rewrite setting, and a matching header line
3206 contained an unqualified address, that address was qualified, even if it
3207 did not match any rewriting rules. The underlying bug was that the values
3208 of the flags that permit the existence of unqualified sender and recipient
3209 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3210 non-local messages, and by -bnq for local messages) were not being
3211 preserved with the message after it was received.
3212
321313. When Exim was logging an SMTP synchronization error, it could sometimes log
3214 "next input=" as part of the text comprising the host identity instead of
3215 the correct text. The code was using the same buffer for two different
3216 strings. However, depending on which order the printing function evaluated
3217 its arguments, the bug did not always show up. Under Linux, for example, my
3218 test suite worked just fine.
3219
322014. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3221 doesn't work with some older versions of Perl. It has been changed to "my",
3222 which in any case is probably the better facility to use.
3223
322415. A really picky compiler found some instances of statements for creating
3225 error messages that either had too many or two few arguments for the format
3226 string.
3227
322816. The size of the buffer for calls to the DNS resolver has been increased
3229 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3230 for addresses that have a lot of PTR records. This alleviates a problem; it
3231 does not fully solve it.
3232
323317. A dnsdb lookup for PTR records that receives more data than will fit in the
3234 buffer now truncates the list and logs the incident, which is the same
3235 action as happens when Exim is looking up a host name and its aliases.
3236 Previously in this situation something unpredictable would happen;
3237 sometimes it was "internal error: store_reset failed".
3238
323918. If a server dropped the connection unexpectedly when an Exim client was
3240 using GnuTLS and trying to read a response, the client delivery process
3241 crashed while trying to generate an error log message.
3242
324319. If a "warn" verb in an ACL added multiple headers to a message in a single
3244 string, for example:
3245
3246 warn message = H1: something\nH2: something
3247
3248 the text was added as a single header line from Exim's point of view
3249 though it ended up OK in the delivered message. However, searching for the
3250 second and subsequent header lines using $h_h2: did not work. This has been
3251 fixed. Similarly, if a system filter added multiple headers in this way,
3252 the routers could not see them.
3253
325420. Expanded the error message when iplsearch is called with an invalid key to
3255 suggest using net-iplsearch in a host list.
3256
325721. When running tests using -bh, any delays imposed by "delay" modifiers in
3258 ACLs are no longer actually imposed (and a message to that effect is
3259 output).
3260
326122. If a "gecos" field in a passwd entry contained escaped characters, in
3262 particular, if it contained a \" sequence, Exim got it wrong when building
3263 a From: or a Sender: header from that name. A second bug also caused
3264 incorrect handling when an unquoted " was present following a character
3265 that needed quoting.
3266
326723. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3268 was not being matched caselessly.
3269
327024. Arranged for all hyphens in the exim.8 source to be escaped with
3271 backslashes.
3272
327325. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3274 properly. Recipient callout cache records were still being keyed to include
3275 the sender, even when use_sender was set false. This led to far more
3276 callouts that were necessary. The sender is no longer included in the key
3277 when use_sender is false.
3278
327926. Added "control = submission" modifier to ACLs.
3280
328127. Added the ${base62d: operator to decode base 62 numbers.
3282
328328. dnsdb lookups can now access SRV records.
3284
328529. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3286 the configuration file.
3287
328830. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3289 (-v) mode. This makes the output for a verbose queue run more intelligible.
3290
329131. Added a use_postmaster feature to recipient callouts.
3292
329332. Added the $body_zerocount variable, containing the number of binary zero
3294 bytes in the message body.
3295
329633. The time of last modification of the "new" subdirectory is now used as the
3297 "mailbox time last read" when there is a quota error for a maildir
3298 delivery.
3299
330034. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3301
330235. Added +ignore_unknown as a special item in host lists.
3303
330436. Code for decoding IPv6 addresses in host lists is now included, even if
3305 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3306 address was recognized as an IP address, but was then not correctly decoded
3307 into binary, causing unexpected and incorrect effects when compared with
3308 another IP address.
3309
3310
3311Exim version 4.34
3312-----------------
3313
3314 1. Very minor rewording of debugging text in manualroute to say "list of
3315 hosts" instead of "hostlist".
3316
3317 2. If verify=header_syntax was set, and a header line with an unqualified
3318 address (no domain) and a large number of spaces between the end of the
3319 name and the colon was received, the reception process suffered a buffer
3320 overflow, and (when I tested it) crashed. This was caused by some obsolete
3321 code that should have been removed. The fix is to remove it!
3322
3323 3. When running in the test harness, delay a bit after writing a bounce
3324 message to get a bit more predictability in the log output.
3325
3326 4. Added a call to search_tidyup() just before forking a reception process. In
3327 theory, someone could use a lookup in the expansion of smtp_accept_max_
3328 per_host which, without the tidyup, could leave open a database connection.
3329
3330 5. Added the variables $recipient_data and $sender_data which get set from a
3331 lookup success in an ACL "recipients" or "senders" condition, or a router
3332 "senders" option, similar to $domain_data and $local_part_data.
3333
3334 6. Moved the writing of debug_print from before to after the "senders" test
3335 for routers.
3336
3337 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3338 problems for message scanning, either using a data ACL, or using
3339 local_scan() because the Received: header was not generated till after they
3340 were called (in order to set the time as the time of reception completion).
3341 I have revised the way this works. The header is now generated after the
3342 body is received, but before the ACL or local_scan() are called. After they
3343 are run, the timestamp in the header is updated.
3344
3345
3346Exim version 4.33
3347-----------------
3348
3349 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3350 before starting a queue runner without re-exec. This happened only when
3351 deliver_drop_privilege was set or when the Exim user was set to root. The
3352 effect of the bug was that timeouts during subsequent deliveries caused
3353 crashes instead of being properly handled. The handler is now left at its
3354 default (and expected) setting.
3355
3356 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3357 message, again when deliver_drop_privilege is set or Exim is run as root.
3358 The bug described in (1) was not present in this case, but the tidying up
3359 of the other signals was missing. I have made the two cases consistent.
3360
3361 3. The ignore_target_hosts setting on a manualroute router was being ignored
3362 for hosts that were looked up using the /MX notation.
3363
3364 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3365 in domain lists.
3366
3367 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3368 operated on the sender address. After changing the $sender_address to <>
3369 for the sender address verify, Exim was re-instated it as the original
3370 (before rewriting) address, but remembering that it had rewritten it, so it
3371 wasn't rewriting it again. This bug also had the effect of breaking the
3372 sender address verification caching when the sender address was rewritten.
3373
3374 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3375 This has been changed so that if the ip literal address matches
3376 ignore_target_hosts, the router declines.
3377
3378 7. Added expansion conditions match_domain, match_address, and match_local_
3379 part (NOT match_host).
3380
3381 8. The placeholder for the Received: header didn't have a length field set.
3382
3383 9. Added code to Exim itself and to exim_lock to test for a specific race
3384 condition that could lead to file corruption when using MBX delivery. The
3385 issue is with the lockfile that is created in /tmp. If this file is removed
3386 after a process has opened it but before that process has acquired a lock,
3387 there is the potential for a second process to recreate the file and also
3388 acquire a lock. This could lead to two Exim processes writing to the file
3389 at the same time. The added code performs the same test as UW imapd; it
3390 checks after acquiring the lock that its file descriptor still refers to
3391 the same named file.
3392
339310. The buffer for building added header lines was of fixed size, 8192 bytes.
3394 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3395 when Exim is built.
3396
339711. Added the smtp_active_hostname option. If used, this will typically be made
3398 to depend on the incoming interface address. Because $interface_address is
3399 not set up until the daemon has forked a reception process, error responses
3400 that can happen earlier (such as "too many connections") no longer contain
3401 a host name.
3402
340312. If an expansion in a condition on a "warn" statement fails because a lookup
3404 defers, the "warn" statement is abandoned, and the next ACL statement is
3405 processed. Previously this caused the whole ACL to be aborted.
3406
340713. Added the iplsearch lookup type.
3408
340914. Added ident_timeout as a log selector.
3410
341115. Added tls_certificate_verified as a log selector.
3412
341316. Added a global option tls_require_ciphers (compare the smtp transport
3414 option of the same name). This controls incoming TLS connections.
3415
341617. I finally figured out how to make tls_require_ciphers do a similar thing
3417 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3418 before starting the TLS session.
3419
342018. Tabs are now shown as \t in -bP output.
3421
342219. If the log selector return_path_on_delivery was set, Exim crashed when
3423 bouncing a message because it had too many Received: header lines.
3424
342520. If two routers both had headers_remove settings, and the first one included
3426 a superfluous trailing colon, the final name in the first list and the
3427 first name in the second list were incorrectly joined into one item (with a
3428 colon in the middle).
3429
3430
3431Exim version 4.32
3432-----------------
3433
3434 1. Added -C and -D options to the exinext utility, mainly to make it easier
3435 to include in the automated testing, but these could be helpful when
3436 multiple configurations are in use.
3437
3438 2. The exinext utility was not formatting the output nicely when there was
3439 an alternate port involved in the retry record key, nor when there was a
3440 message id as well (for retries that were specific to a specific message
3441 and a specific host). It was also confused by IPv6 addresses, because of
3442 the additional colons they contain. I have fixed the IPv4 problem, and
3443 patched it up to do a reasonable job for IPv6.
3444
3445 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3446 delivery, the log line now contains "pipelined" if PIPELINING was used.
3447
3448 4. An SMTP transport process used to panic and die if the bind() call to set
3449 an explicit outgoing interface failed. This has been changed; it is now
3450 treated in the same way as a connect() failure.
3451
3452 5. A reference to $sender_host_name in the part of a conditional expansion
3453 that was being skipped was still causing a DNS lookup. This no longer
3454 occurs.
3455
3456 6. The def: expansion condition was not recognizing references to header lines
3457 that used bh_ and bheader_.
3458
3459 7. Added the _cache feature to named lists.
3460
3461 8. The code for checking quota_filecount in the appendfile transport was
3462 allowing one more file than it should have been.
3463
3464 9. For compatibility with Sendmail, the command line option
3465
3466 -prval:sval
3467
3468 is equivalent to
3469
3470 -oMr rval -oMs sval
3471
3472 and sets the incoming protocol and host name (for trusted callers). The
3473 host name and its colon can be omitted when only the protocol is to be set.
3474 Note the Exim already has two private options, -pd and -ps, that refer to
3475 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3476 "s", but I don't think that's a major issue.
3477
347810. A number of refactoring changes to the code, none of which should affect
3479 Exim's behaviour:
3480
3481 (a) The number of logging options was getting close to filling up the
3482 32-bit word that was used as a bit map. I have split them into two classes:
3483 those that are passed in the argument to log_write(), and those that are
3484 only ever tested independently outside of that function. These are now in
3485 separate 32-bit words, so there is plenty of room for expansion again.
3486 There is no change in the user interface or the logging behaviour.
3487
3488 (b) When building, for example, log lines, the code previously used a
3489 macro that called string_cat() twice, in order to add two strings. This is
3490 not really sufficiently general. Furthermore, there was one instance where
3491 it was actually wrong because one of the argument was used twice, and in
3492 one call a function was used. (As it happened, calling the function twice
3493 did not affect the overall behaviour.) The macro has been replaced by a
3494 function that can join an arbitrary number of extra strings onto a growing
3495 string.
3496
3497 (c) The code for expansion conditions now uses a table and a binary chop
3498 instead of a serial search (which was left over from when there were very
3499 few conditions). Also, it now recognizes conditions like "pam" even when
3500 the relevant support is not compiled in: a suitably worded error message is
3501 given if an attempt is made to use such a condition.
3502
350311. Added ${time_interval:xxxxx}.
3504
350512. A bug was causing one of the ddress fields not to be passed back correctly
3506 from remote delivery subprocesses. The field in question was not being
3507 subsequently used, so this caused to problems in practice.
3508
350913. Added new log selectors queue_time and deliver_time.
3510
351114. Might have fixed a bug in maildirsizefile handling that threw up
3512 "unexpected character" debug warnings, and recalculated the data
3513 unnecessarily. In any case, I expanded the warning message to give more
3514 information.
3515
351615. Added the message "Restricted characters in address" to the statements in
3517 the default ACL that block characters like @ and % in local parts.
3518
351916. Change 71 for release 4.31 proved to be much less benign that I imagined.
3520 Three changes have been made:
3521
3522 (a) There was a serious bug; a negative response to MAIL caused the whole
3523 recipient domain to be cached as invalid, thereby blocking all messages
3524 to all local parts at the same domain, from all senders. This bug has
3525 been fixed. The domain is no longer cached after a negative response to
3526 MAIL if the sender used is not empty.
3527
3528 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3529 been restored.
3530
3531 (c) A new callout option, "use_sender" has been added for people who want
3532 the modified behaviour.
3533
3534
3535Exim version 4.31
3536-----------------
3537
3538 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3539 Larry Rosenman.
3540
3541 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3542 indeed breaks things for older releases.
3543
3544 3. Added additional logging to the case where there is a problem reading data
3545 from a filter that is running in a subprocess using a pipe, in order to
3546 try to