Fixed bug in parse_date_time() introduced with last change.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
6c588e74 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.548 2008/05/16 12:22:08 nm4 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
NM
6Exim version 4.70
7-----------------
8
cdd3bb85
TK
9TK/01 Added patch by Johannes Berg that expands the main option
10 "spamd_servers" if it starts with a dollar sign.
11
12TK/02 Write list of recipients to X-Envelope-Sender header when building
13 the mbox-format spool file for content scanning (suggested by Jakob
14 Hirsch)
15
16TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
17 (http://www.dcc-servers.net/) support via dccifd. Activated by
18 setting EXPERIMENTAL_DCC=yes in Local/Makefile. Check out
19 experimental_spec.txt for more documentation.
20
21TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
22 by Mark Daniel Reidel <mr@df.eu>.
23
210f147e
NM
24NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
25 When building exim an external PCRE library is now needed -
26 PCRE is a system library on the majority of modern systems.
27 See entry on PCRE_LIBS in EDITME file.
28
deafd5b3
NM
29NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
30 conversation. Added nologin parameter to request.
31 Patch contributed by Kirill Miazine
32
089793a4
TF
33TF/01 Do not log submission mode rewrites if they do not change the address.
34
5f16ca82
TF
35TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
36
dae9d94e
NM
37NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
38 log files in place. Contributed by Roberto Lima
39
3f0da4d0
NM
40NM/04 Bugzilla 667: close socket used by dovecot authenticator
41
06864c44
TF
42TF/03 Bugzilla 615: When checking the local_parts router precondition
43 after a local_part_suffix or local_part_prefix option, Exim now
44 does not use the address's named list lookup cache, since this
45 contains cached lookups for the whole local part.
46
65a7d8c3
NM
47NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
48 Robert Millan. Documentation is in experimental-spec.txt
49
23510047 50TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 51
5f28a6e8
NM
52NM/05 Bugzilla 437: Prevent Maildix aux files being created with mode 000
53
6c588e74
NM
54NM/05 Bugzilla 598: Improvedment to Dovecot authenticator handling.
55 Patch provided by Jan Srzednicki
56
5f28a6e8
NM
57
58
deafd5b3 59
47db1125
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60Exim version 4.69
61-----------------
62
4b3504d0
TK
63TK/01 Add preliminary DKIM support. Currently requires a forked version of
64 ALT-N's libdkim that I have put here:
65 http://duncanthrax.net/exim-experimental/
66
67 Note to Michael Haardt: I had to rename some vars in sieve.c. They
68 were called 'true' and it seems that C99 defines that as a reserved
69 keyword to be used with 'bool' variable types. That means you could
70 not include C99-style headers which use bools without triggering
71 build errors in sieve.c.
72
81ea09ca
NM
73NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
74 as mailq or other aliases. Changed the --help handling significantly
75 to do whats expected. exim_usage() emits usage/help information.
76
f13cddcb
SC
77SC/01 Added the -bylocaldomain option to eximstats.
78
8ad076b2
NM
79NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
80
a843aaa6
NM
81NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
82
47db1125
NM
83NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
84
85
eb4c0de6
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86Exim version 4.68
87-----------------
88
89PH/01 Another patch from the Sieve maintainer.
90
6a3bceb1
PH
91PH/02 When an IPv6 address is converted to a string for single-key lookup
92 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
93 dots are used instead of colons so that keys in lsearch files need not
94 contain colons. This was done some time before quoting was made available
95 in lsearch files. However, iplsearch files do require colons in IPv6 keys
96 (notated using the quote facility) so as to distinguish them from IPv4
97 keys. This meant that lookups for IP addresses in host lists did not work
98 for iplsearch lookups.
99
100 This has been fixed by arranging for IPv6 addresses to be expressed with
101 colons if the lookup type is iplsearch. This is not incompatible, because
102 previously such lookups could never work.
103
104 The situation is now rather anomolous, since one *can* have colons in
105 ordinary lsearch keys. However, making the change in all cases is
106 incompatible and would probably break a number of configurations.
107
2e30fa9d
TK
108TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
109 version.
110
0806a9c5
MH
111MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
112 conversion specification without a maximum field width, thereby enabling
113 a rogue spamd server to cause a buffer overflow. While nobody in their
114 right mind would setup Exim to query an untrusted spamd server, an
115 attacker that gains access to a server running spamd could potentially
116 exploit this vulnerability to run arbitrary code as the Exim user.
117
ae276964
TK
118TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
119 $primary_hostname instead of what libspf2 thinks the hosts name is.
120
0f2cbd1b
MH
121MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
122 a directory entry by the name of the lookup key. Previously, if a
123 symlink pointed to a non-existing file or a file in a directory that
124 Exim lacked permissions to read, a lookup for a key matching that
125 symlink would fail. Now it is enough that a matching directory entry
126 exists, symlink or not. (Bugzilla 503.)
127
2b85bce7
PH
128PH/03 The body_linecount and body_zerocount variables are now exported in the
129 local_scan API.
130
93655c46
PH
131PH/04 Added the $dnslist_matched variable.
132
6c512171
PH
133PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
134 This means they are set thereafter only if the connection becomes
135 encrypted.
136
137PH/06 Added the client_condition to authenticators so that some can be skipped
138 by clients under certain conditions.
139
aa6dc513
PH
140PH/07 The error message for a badly-placed control=no_multiline_responses left
141 "_responses" off the end of the name.
142
a96603a0
PH
143PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
144
8f240103
PH
145PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
146 (without spaces) instead of just copying the configuration text.
147
148PH/10 Added the /noupdate option to the ratelimit ACL condition.
149
d677b2f2
PH
150PH/11 Added $max_received_linelength.
151
d52120f2
PH
152PH/12 Added +ignore_defer and +include_defer to host lists.
153
64f2600a
PH
154PH/13 Installed PCRE version 7.2. This needed some changes because of the new
155 way in which PCRE > 7.0 is built.
156
8669f003
PH
157PH/14 Implemented queue_only_load_latch.
158
a4dc33a8
PH
159PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
160 MAIL command. The effect was to mangle the value on 64-bit systems.
161
d6a60c0f
PH
162PH/16 Another patch from the Sieve maintainer.
163
8f128379
PH
164PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
165
8932dffe
PH
166PH/18 If a system quota error occurred while trying to create the file for
167 a maildir delivery, the message "Mailbox is full" was not appended to the
168 bounce if the delivery eventually timed out. Change 4.67/27 below applied
169 only to a quota excession during the actual writing of the file.
d6a60c0f 170
ddea74fa 171PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
172 characters?) which causes problems in log lines. The DN values are now
173 passed through string_printing() before being added to log lines.
174
ddea74fa 175PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
176 and InterBase are left for another time.)
177
ddea74fa
PH
178PH/21 Added message_body_newlines option.
179
ce9f225c
PH
180PH/22 Guard against possible overflow in moan_check_errorcopy().
181
19897d52
PH
182PH/23 POSIX allows open() to be a macro; guard against that.
183
bc64a74d
PH
184PH/24 If the recipient of an error message contained an @ in the local part
185 (suitably quoted, of course), incorrect values were put in $domain and
186 $local_part during the evaluation of errors_copy.
187
eb4c0de6 188
b4ed4da0
PH
189Exim version 4.67
190-----------------
191
22ad45c9
MH
192MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
193 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
194 Jan Srzednicki.
195
b4ed4da0
PH
196PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
197 issue a MAIL command.
198
431b7361
PH
199PH/02 In an ACL statement such as
200
201 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
202
203 if a client was not listed at all, or was listed with a value other than
204 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
205 the condition was not true (as it should be), so access was not denied.
206 The bug was that the ! inversion was incorrectly passed on to the second
207 item. This has been fixed.
208
209PH/03 Added additional dnslists conditions == and =& which are different from
210 = and & when the dns lookup returns more than one IP address.
211
83da1223
PH
212PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
213 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
214
54fc8428
PH
215PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
216 FSYNC, which compiles an option called disable_fsync that allows for
217 bypassing fsync(). The documentation is heavily laced with warnings.
218
34c5e8dd
SC
219SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
220
bbe15da8
PH
221PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
222 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
223 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
224 including adding "make clean"; (3) Added -fPIC when compiling the test
225 dynamically loaded module, to get rid of a warning.
226
0e8a9471
MH
227MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
228 message fails, move_frozen_messages = true and ignore_bounce_errors_after
229 = 0s. The bug is otherwise harmless.
230
f0872424
PH
231PH/07 There was a bug in the dovecot authenticator such that the value of
232 $auth1 could be overwritten, and so not correctly preserved, after a
233 successful authentication. This usually meant that the value preserved by
234 the server_setid option was incorrect.
235
b01dd148
PH
236PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
237
6bf342e1
PH
238PH/09 Installed PCRE release 7.0.
239
273f34d0
PH
240PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
241 run for batched SMTP input. It is now run at the start of every message
242 in the batch. While fixing this I discovered that the process information
243 (output by running exiwhat) was not always getting set for -bs and -bS
244 input. This is fixed, and it now also says "batched" for BSMTP.
245
cf8b11a5
PH
246PH/11 Added control=no_pipelining.
247
41c7c167
PH
248PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
249 patch, slightly modified), and move the expansion of helo_data till after
250 the connection is made in the smtp transport (so it can use these
251 values).
252
9c57cbc0
PH
253PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
254
f3f065bb
PH
255PH/14 Added log_selector = +pid.
256
047bdd8c
PH
257PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
258
0ce9abe6
PH
259PH/16 Add ${if forany and ${if forall.
260
0e22dfd1
PH
261PH/17 Added dsn_from option to vary the From: line in DSNs.
262
4c590bd1
PH
263PH/18 Flush SMTP output before performing a callout, unless control =
264 no_callout_flush is set.
265
09945f1e
PH
266PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
267 was true (the default) a successful delivery failed to delete the retry
268 item, thus causing premature timeout of the address. The bug is now
269 fixed.
270
c51b8e75
PH
271PH/20 Added hosts_avoid_pipelining to the smtp transport.
272
e28326d8
PH
273PH/21 Long custom messages for fakedefer and fakereject are now split up
274 into multiline reponses in the same way that messages for "deny" and
275 other ACL rejections are.
276
75b1493f
PH
277PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
278 with slight modification.
279
7c5214ec
PH
280PH/23 Applied sieve patches from the maintainer "tracking the latest notify
281 draft, changing the syntax and factoring some duplicate code".
282
4311097e
PH
283PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
284 for deliveries of the second and subsequent messages over the same SMTP
285 connection.
286
29f89cad
PH
287PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
288 ${reduce, with only minor "tidies".
289
5e687460
SC
290SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
291
c3611384
PH
292PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
293 expansion side effects.
294
5a11a7b4
PH
295PH/27 When a message times out after an over-quota error from an Exim-imposed
296 quota, the bounce message says "mailbox is full". This message was not
297 being given when it was a system quota that was exceeded. It now should
298 be the same.
299
0e20aff9
MH
300MH/03 Made $recipients available in local_scan(). local_scan() already has
301 better access to the recipient list through recipients_list[], but
302 $recipients can be useful in postmaster-provided expansion strings.
303
ca86f471
PH
304PH/28 The $smtp_command and $smtp_command_argument variables were not correct
305 in the case of a MAIL command with additional options following the
306 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
307 were accidentally chopped off.
308
a14e5636
PH
309PH/29 SMTP synchronization checks are implemented when a command is read -
310 there is a check that no more input is waiting when there shouldn't be
311 any. However, for some commands, a delay in an ACL can mean that it is
312 some time before the response is written. In this time, more input might
313 arrive, invalidly. So now there are extra checks after an ACL has run for
314 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
315 pipelining has not been advertised.
316
ec95d1a6
PH
317PH/30 MH's patch to allow iscntrl() characters to be list separators.
318
42855d71
PH
319PH/31 Unlike :fail:, a custom message specified with :defer: was not being
320 returned in the SMTP response when smtp_return_error_details was false.
321 This has been fixed.
322
57c2c631
PH
323PH/32 Change the Dovecot authenticator to use read() and write() on the socket
324 instead of the C I/O that was originally supplied, because problems were
325 reported on Solaris.
326
58c01c94
PH
327PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
328 Exim which did not show up earlier: it was assuming that a call to
329 SSL_CTX_set_info_callback() might give an error value. In fact, there is
330 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
331 was a macro that became an assignment, so it seemed to work. This has
332 changed to a proper function call with a void return, hence the compile
333 error. Exim's code has been fixed.
334
dee5a20a
PH
335PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
336 cpus.
337
d2ee6114
PH
338PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
339
b2d5182b
PH
340PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
341
79749a79
PH
342PH/37 If a message is not accepted after it has had an id assigned (e.g.
343 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
344 "Completed" line in the log. When some messages of this type were
345 selected by exigrep, they were listed as "not completed". Others were
346 picked up by some special patterns. I have improved the selection
347 criteria to be more general.
79749a79 348
c456d9bb
PH
349PH/38 The host_find_failed option in the manualroute router can now be set
350 to "ignore", to completely ignore a host whose IP address cannot be
351 found. If all hosts are ignored, the behaviour is controlled by the new
352 host_all_ignored option.
353
cd9868ec
PH
354PH/39 In a list of hosts for manualroute, if one item (either because of multi-
355 homing or because of multiple MX records with /mx) generated more than
356 one IP address, and the following item turned out to be the local host,
357 all the secondary addresses of the first item were incorrectly removed
358 from the list, along with the local host and any following hosts (which
359 is what is supposed to happen).
360
ebeaf996
PH
361PH/40 When Exim receives a message, it writes the login name, uid, and gid of
362 whoever called Exim into the -H file. In the case of the daemon it was
363 behaving confusingly. When first started, it used values for whoever
364 started the daemon, but after a SIGHUP it used the Exim user (because it
365 calls itself on a restart). I have changed the code so that it now always
366 uses the Exim user.
367
2679d413
PH
368PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
369 message are rejected with the same error (e.g. no authentication or bad
370 sender address), and a DATA command is nevertheless sent (as can happen
371 with PIPELINING or a stupid MUA), the error message that was given to the
372 RCPT commands is included in the rejection of the DATA command. This is
373 intended to be helpful for MUAs that show only the final error to their
374 users.
375
84024b72
PH
376PH/42 Another patch from the Sieve maintainer.
377
8005d38e
SC
378SC/02 Eximstats - Differentiate between permanent and temporary rejects.
379 Eximstats - Fixed some broken HTML links and added missing column headers
380 (Jez Hancock).
381 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
382 columns for Rejects, Temp Rejects, Ham, and Spam rows.
383
3298c6c6
SC
384SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
385
a43a27c5
PH
386PH/43 Yet another patch from the Sieve maintainer.
387
58eb016e 388PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
389 the response to the final '.' that terminates a message, but only in the
390 case where the client has not sent further data following the '.'
391 (unfortunately, this is allowed). However, in many cases there won't be
392 any further data because there won't be any more messages to send. A call
393 to select() can be used: if it shows that the input is "ready", there is
394 either input waiting, or the socket has been closed. An attempt to read
395 the next input character can distinguish the two cases. Previously, Exim
58eb016e 396 would have sent an OK response which the client would never have see.
563b63fa
PH
397 This could lead to message repetition. This fix should cure that, at
398 least in a lot of common cases.
58eb016e 399
b43a74ea
PH
400PH/45 Do not advertise STARTTLS in response to HELP unless it would be
401 advertised in response to EHLO.
402
b4ed4da0 403
5dd1517f
PH
404Exim version 4.66
405-----------------
406
407PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
408 fixed by 4.65/MH/01 (is this a record?) are fixed:
409
410 (i) An empty string was always treated as zero by the numeric comparison
411 operators. This behaviour has been restored.
412
413 (ii) It is documented that the numeric comparison operators always treat
414 their arguments as decimal numbers. This was broken in that numbers
415 starting with 0 were being interpreted as octal.
416
417 While fixing these problems I realized that there was another issue that
418 hadn't been noticed. Values of message_size_limit (both the global option
419 and the transport option) were treated as octal if they started with 0.
420 The documentation was vague. These values are now always treated as
421 decimal, and I will make that clear in the documentation.
422
423
93cfa765
TK
424Exim version 4.65
425-----------------
426
427TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
428 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
429 versions. (#438)
430
d6066548
MH
431MH/01 Don't check that the operands of numeric comparison operators are
432 integers when their expansion is in "skipping" mode (fixes bug
433 introduced by 4.64-PH/07).
434
4362ff0d
PH
435PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
436 child addresses, Exim now panics and dies. Previously, because the count
437 is held in a short int, deliveries were likely to be lost. As such a
438 large number of recipients for a single message is ridiculous
439 (performance will be very, very poor), I have chosen to impose a limit
440 rather than extend the field.
441
93cfa765 442
944e9e9c
TF
443Exim version 4.64
444-----------------
aa41d2de 445
21d74bd9
TK
446TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
447 leftover -K file (the existence of which was triggered by #402).
448 While we were at it, introduced process PID as part of the -K
449 filename. This should rule out race conditions when creating
450 these files.
451
452TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
453 processing considerably. Previous code took too long for large mails,
454 triggering a timeout which in turn triggers #401.
455
456TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
457 in the DK code in transports.c. sendfile() is not really portable,
458 hence the _LINUX specificness.
944e9e9c
TF
459
460TF/01 In the add_headers option to the mail command in an Exim filter,
461 there was a bug that Exim would claim a syntax error in any
462 header after the first one which had an odd number of characters
463 in the field name.
464
2b1c6e3a
PH
465PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
466 callout verification, Exim cached a "reject" for the entire domain. This
467 is correct for most verifications, but it is not correct for a recipient
468 verification with use_sender or use_postmaster set, because in that case
469 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
470 case of MAIL FROM:<> rejection from other early rejections (e.g.
471 rejection of HELO). When verifying a recipient using a non-null MAIL
472 address, the cache is ignored if it shows MAIL FROM:<> rejection.
473 Whatever the result of the callout, the value of the domain cache is
474 left unchanged (for any other kind of callout, getting as far as trying
475 RCPT means that the domain itself is ok).
476
1f872c80
PH
477PH/02 Tidied a number of unused variable and signed/unsigned warnings that
478 gcc 4.1.1 threw up.
479
480PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
481 manifest itself as EPIPE rather than ECONNECT. When tidying away a
482 session, the daemon ignores ECONNECT errors and logs others; it now
483 ignores EPIPE as well.
484
d203e649
PH
485PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
486 (quoted-printable decoding).
487
cc2ed8f7 488PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 489 later the small subsequent patch to fix an introduced bug.
f951fd57 490
ddfcd446
PH
491PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
492
d45b1de8
PH
493PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
494
495PH/08 An error is now given if message_size_limit is specified negative.
496
38a0a95f 497PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 498 to be given (somewhat) arbitrary names.
38a0a95f 499
a2405d83
JJ
500JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
501 in 4.64-PH/09.
502
503JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
504 miscellaneous code fixes
505
6ea85e9a
PH
506PH/10 Added the log_reject_target ACL modifier to specify where to log
507 rejections.
508
26da7e20
PH
509PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
510 hostname. This is wrong, because it relates to the incoming message (and
511 probably the interface on which it is arriving) and not to the outgoing
512 callout (which could be using a different interface). This has been
513 changed to use the value of the helo_data option from the smtp transport
514 instead - this is what is used when a message is actually being sent. If
515 there is no remote transport (possible with a router that sets up host
516 addresses), $smtp_active_hostname is used.
6ea85e9a 517
14aa5a05 518PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 519 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
520 (a) The code assumed that strncpy() returns a negative number on buffer
521 overflow, which isn't the case. Replaced with Exim's string_format()
522 function.
523 (b) There were several signed/unsigned issues. I just did the minimum
524 hacking in of casts. There is scope for a larger refactoring.
525 (c) The code used strcasecmp() which is not a standard C function.
526 Replaced with Exim's strcmpic() function.
527 (d) The code set only $1; it now sets $auth1 as well.
528 (e) A simple test gave the error "authentication client didn't specify
529 service in request". It would seem that Dovecot has changed its
530 interface. Fortunately there's a specification; I followed it and
531 changed what the client sends and it appears to be working now.
532
ff75a1f7
PH
533PH/13 Added $message_headers_raw to provide the headers without RFC 2047
534 decoding.
535
e6f6568e
PH
536PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
537 address A is aliased to B and C, where B exists and C does not. Without
538 -v the output is "A verified" because verification stops after a
539 successful redirection if more than one address is generated. However,
540 with -v the child addresses are also verified. Exim was outputting "A
541 failed to verify" and then showing the successful verification for C,
542 with its parentage. It now outputs "B failed to verify", showing B's
543 parentage before showing the successful verification of C.
544
d6f6e0dc
PH
545PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
546 look up a TXT record in a specific list after matching in a combined
547 list.
548
322050c2
PH
549PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
550 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
551 they consult the DNS. I had assumed they would set it the way they
552 wanted; and indeed my experiments on Linux seem to show that in some
553 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
554 To be on the safe side, however, I have now made the interface to
555 host_find_byname() similar to host_find_bydns(), with an argument
556 containing the DNS resolver options. The host_find_byname() function now
557 sets these options at its start, just as host_find_bydns() does. The smtp
558 transport options dns_qualify_single and dns_search_parents are passed to
559 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
560 of host_find_byname() use the default settings of RES_DEFNAMES
561 (qualify_single) but not RES_DNSRCH (search_parents).
562
08955dd3
PH
563PH/17 Applied (a modified version of) Nico Erfurth's patch to make
564 spool_read_header() do less string testing, by means of a preliminary
565 switch on the second character of optional "-foo" lines. (This is
566 overdue, caused by the large number of possibilities that now exist.
567 Originally there were few.) While I was there, I also converted the
568 str(n)cmp tests so they don't re-test the leading "-" and the first
569 character, in the hope this might squeeze out yet more improvement.
570
1eccaa59
PH
571PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
572 flag allowing group syntax was set by the header_syntax check but not
573 turned off, possible causing trouble later; (2) The flag was not being
574 set at all for the header_verify test, causing "group"-style headers to
575 be rejected. I have now set it in this case, and also caused header_
576 verify to ignore an empty address taken from a group. While doing this, I
577 came across some other cases where the code for allowing group syntax
578 while scanning a header line wasn't quite right (mostly, not resetting
579 the flag correctly in the right place). These bugs could have caused
580 trouble for malformed header lines. I hope it is now all correct.
581
602e59e5
PH
582PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
583 with the "reply" argument non-NULL. The code, however (which originally
584 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
585 but it didn't always do it. This confused somebody who was copying the
586 code for some other use. I have removed all the tests.
587
411ef850
PH
588PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
589 feature that was used to support insecure browsers during the U.S. crypto
590 embargo. It requires special client support, and Exim is probably the
591 only MTA that supported it -- and would never use it because real RSA is
592 always available. This code has been removed, because it had the bad
593 effect of slowing Exim down by computing (never used) parameters for the
594 RSA_EXPORT functionality.
595
7befa435
PH
596PH/21 On the advice of Timo Sirainen, added a check to the dovecot
597 authenticator to fail if there's a tab character in the incoming data
598 (there should never be unless someone is messing about, as it's supposed
599 to be base64-encoded). Also added, on Timo's advice, the "secured" option
600 if the connection is using TLS or if the remote IP is the same as the
601 local IP, and the "valid-client-cert option" if a client certificate has
602 been verified.
603
48da4259 604PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
605 authenticators. This can be used for authorization after authentication
606 succeeds. (In the case of plaintext, it servers for both authentication
607 and authorization.)
608
48da4259
PH
609PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
610 if any retry times were supplied.
611
d1d5595c
PH
612PH/24 Exim crashed if verify=helo was activated during an incoming -bs
613 connection, where there is no client IP address to check. In this
614 situation, the verify now always succeeds.
615
0ef732d9
PH
616PH/25 Applied John Jetmore's -Mset patch.
617
328895cc
PH
618PH/26 Added -bem to be like -Mset, but loading a message from a file.
619
fd700877
PH
620PH/27 In a string expansion for a processed (not raw) header when multiple
621 headers of the same name were present, leading whitespace was being
622 removed from all of them, but trailing whitespace was being removed only
623 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
624 before concatenation. Completely empty headers in a concatenation (as
625 before) are ignored.
fd700877 626
8dce1a6f
PH
627PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
628 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
629
17af4a17
PH
630PH/29 [Removed. This was a change that I later backed out, and forgot to
631 correct the ChangeLog entry (that I had efficiently created) before
632 committing the later change.]
f6c332bd
PH
633
634PH/30 Exim was sometimes attempting to deliver messages that had suffered
635 address errors (4xx response to RCPT) over the same connection as other
636 messages routed to the same hosts. Such deliveries are always "forced",
637 so retry times are not inspected. This resulted in far too many retries
638 for the affected addresses. The effect occurred only when there were more
639 hosts than the hosts_max_try setting in the smtp transport when it had
640 the 4xx errors. Those hosts that it had tried were not added to the list
641 of hosts for which the message was waiting, so if all were tried, there
642 was no problem. Two fixes have been applied:
643
644 (i) If there are any address or message errors in an SMTP delivery, none
645 of the hosts (tried or untried) are now added to the list of hosts
646 for which the message is waiting, so the message should not be a
647 candidate for sending over the same connection that was used for a
648 successful delivery of some other message. This seems entirely
649 reasonable: after all the message is NOT "waiting for some host".
650 This is so "obvious" that I'm not sure why it wasn't done
651 previously. Hope I haven't missed anything, but it can't do any
652 harm, as the worst effect is to miss an optimization.
653
654 (ii) If, despite (i), such a delivery is accidentally attempted, the
655 routing retry time is respected, so at least it doesn't keep
656 hammering the server.
657
c1114884
PH
658PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
659 in ${readsocket because some servers need this prod.
660
7a0743eb
PH
661PH/32 Added some extra debug output when updating a wait-xxx database.
662
0d85fa3f
PH
663PH/33 The hint "could be header name not terminated by colon", which has been
664 given for certain expansion errors for a long time, was not being given
665 for the ${if def:h_colon_omitted{... case.
666
1bf43b78
PH
667PH/34 The spec says: "With one important exception, whenever a domain list is
668 being scanned, $domain contains the subject domain." There was at least
669 one case where this was not true.
670
520de300
PH
671PH/35 The error "getsockname() failed: connection reset by peer" was being
672 written to the panic log as well as the main log, but it isn't really
673 panic-worthy as it just means the connection died rather early on. I have
674 removed the panic log writing for the ECONNRESET error when getsockname()
675 fails.
676
48c7f9e2
PH
677PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
678 runs only) independently of the message's sender address. This meant
679 that, if the 4xx error was in fact related to the sender, a different
680 message to the same recipient with a different sender could confuse
681 things. In particualar, this can happen when sending to a greylisting
682 server, but other circumstances could also provoke similar problems.
683 I have changed the default so that the retry time for these errors is now
684 based a combination of the sender and recipient addresses. This change
685 can be overridden by setting address_retry_include_sender=false in the
686 smtp transport.
687
99ea1c86
PH
688PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
689 remote server are returned as part of bounce messages. This was not
690 happening for LMTP over a pipe (the lmtp transport), but now it is the
691 same for both kinds of LMTP.
692
a2042e78
PH
693PH/38 Despite being documented as not happening, Exim was rewriting addresses
694 in header lines that were in fact CNAMEs. This is no longer the case.
695
4fbcfc2e
PH
696PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
697 and queue runs started by the daemon processed all messages. This has
698 been fixed so that -R and -S can now usefully be given with -q<time>.
699
aa41d2de
PH
700PH/40 Import PCRE release 6.7 (fixes some bugs).
701
af561417
PH
702PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
703
3cc66b45
PH
704PH/42 Give an error if -q is specified more than once.
705
194cc0e4
PH
706PH/43 Renamed the variables $interface_address and $interface_port as
707 $received_ip_address and $received_port, to make it clear that these
708 values apply to message reception, and not to the outgoing interface when
709 a message is delivered. (The old names remain recognized, of course.)
710
a401ddaa
PH
711PH/44 There was no timeout on the connect() call when using a Unix domain
712 socket in the ${readsocket expansion. There now is.
713
4e88a19f
PH
714PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
715 be meaningful with "accept".
716
d7d7b289
SC
717SC/01 Eximstats V1.43
718 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
719
720SC/02 Eximstats V1.44
721 Use a glob alias rather than an array ref in the generated
722 parser. This improves both readability and performance.
723
724SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
725 Collect SpamAssassin and rejection statistics.
726 Don't display local sender or destination tables unless
727 there is data to show.
728 Added average volumes into the top table text output.
729
730SC/04 Eximstats V1.46
731 Collect data on the number of addresses (recipients)
732 as well as the number of messages.
733
734SC/05 Eximstats V1.47
735 Added 'Message too big' to the list of mail rejection
736 reasons (thanks to Marco Gaiarin).
737
738SC/06 Eximstats V1.48
739 Mainlog lines which have GMT offsets and are too short to
740 have a flag are now skipped.
741
742SC/07 Eximstats V1.49 (Alain Williams)
743 Added the -emptyok flag.
744
745SC/08 Eximstats V1.50
746 Fixes for obtaining the IP address from reject messages.
747
0ea2a468
JJ
748JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
749 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
750 whitesspace changes from 4.64-PH/27
751
752JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
753 match 4.64-PH/13
754
755JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
756 are found, allow negative numbers in numeric criteria)
757
758JJ/06 exipick.20061117.2, added new $message_body_missing variable
759
760JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
761 to match changes made in 4.64-PH/43
762
8a10f5a4
PH
763PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
764
30e18802
PH
765PH/47 Put in an explicit test for a DNS lookup of an address record where the
766 "domain" is actually an IP address, and force a failure. This locks out
767 those revolvers/nameservers that support "A-for-A" lookups, in
768 contravention of the specifications.
769
55728a4f
PH
770PH/48 When a host name was looked up from an IP address, and the subsequent
771 forward lookup of the name timed out, the host name was left in
772 $sender_host_name, contrary to the specification.
d7d7b289 773
d7837193
PH
774PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
775 restricted to single-key lookups, Exim was not diagnosing an error if
776 * or *@ was used with a query-style lookup.
777
87054a31
PH
778PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
779
ea2c01d2
MH
780MH/01 local_scan ABI version incremented to 1.1. It should have been updated
781 long ago, but noone interested enough thought of it. Let's just say that
782 the "1.1" means that there are some new functions that weren't there at
783 some point in the past.
784
e4fa6968
PH
785PH/51 Error processing for expansion failure of helo_data from an smtp
786 transport during callout processing was broken.
787
56f5d9bd
PH
788PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
789 tested/used via the -bh/-bhc/-bs options.
790
922e1c28
PH
791PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
792 bug, fixed in subsequent PCRE releases).
793
21eb6e72
PH
794PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
795 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
796
a0540757
PH
797PH/55 Check for a ridiculously long file name in exim_dbmbuild.
798
944e9e9c 799
478be7b0
SC
800Exim version 4.63
801-----------------
802
803SC/01 Use a glob alias rather than an array ref in eximstats generated
804 parser. This improves both readability and performance.
805
806SC/02 Collect SpamAssassin and rejection statistics in eximstats.
807 Don't display local sender or destination tables in eximstats unless
808 there is data to show.
809 Added average volumes into the eximstats top table text output.
810
811SC/03 Collect data on the number of addresses (recipients) as well
812 as the number of messages in eximstats.
813
2b965a65
TF
814TF/01 Correct an error in the documentation for the redirect router. Exim
815 does (usually) call initgroups() when daemonizing.
478be7b0 816
45b91596
PH
817TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
818 with consistent privilege compared to when running as a daemon.
478be7b0 819
c59f5781
TF
820TF/03 Note in the spec that $authenticated_id is not set for local
821 submissions from trusted users.
822
90fc3069
TF
823TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
824 Thanks to Dean Brooks <dean@iglou.com> for the patch.
825
6083aca0
TF
826TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
827 by adding some example configuration directives to the default
828 configuration file. A little bit of work is required to uncomment the
829 directives and define how usernames and passwords are checked, but
830 there is now a framework to start from.
831
765b530f
PH
832PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
833 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
834 without this. I don't know how relevant this is to other LDAP libraries.
835
4e167a8c
PH
836PH/02 Add the verb name to the "unknown ACL verb" error.
837
4608d683
PH
838PH/03 Magnus Holmgren's patch for filter_prepend_home.
839
b8dc3e4a
PH
840PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
841
5418e93b
PH
842PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
843 directory not expanded when it should be if an expanded home directory
844 was set for the address (which is overridden by the transport).
845
b4a9bda2
PH
846PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
847 libradius.
848
45b91596
PH
849PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
850 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
851 because it is too late at that time, and has no effect.
852
5547e2c5
PH
853PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
854 security issue with \' (bugzilla #107). I could not use the
855 PQescapeStringConn() function, because it needs a PGconn value as one of
856 its arguments.
857
dbcef0ea
PH
858PH/08 When testing addresses using -bt, indicate those final addresses that
859 are duplicates that would not cause an additional delivery. At least one
860 person was confused, thinking that -bt output corresponded to deliveries.
861 (Suppressing duplicates isn't a good idea as you lose the information
862 about possibly different redirections that led to the duplicates.)
863
25257489
PH
864PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
865 systems where poll() doesn't work, in particular OS X.
866
c816d124
PH
867PH/10 Added more information to debugging output for retry time not reached.
868
a9ccd69a
PH
869PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
870 operations in malware.c.
871
75fa1910
PH
872PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
873 signatures.
874
a7d7aa58
PH
875PH/13 If write_rejectlog was set false when logging was sent to syslog with
876 syslog_duplication set false, log lines that would normally be written
877 both the the main log and to the reject log were not written to syslog at
878 all.
879
42119b09
PH
880PH/14 In the default configuration, change the use of "message" in ACL warn
881 statements to "add_header".
882
41609df5
PH
883PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
884 not followed by a command (e.g. "seen endif").
885
a5bd321b
PH
886PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
887 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
888 latter.
889
e85a7ad5 890PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
891 so that it is now:
892
e85a7ad5
PH
893 ${if or { \
894 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
895 { match{$h_precedence:}{(?i)bulk|list|junk} } \
896 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
897 }{no}{yes}}
898
e85a7ad5
PH
899 The Auto-Submitted: and various List- headers are standardised, whereas I
900 don't think Precedence: ever was.
5dff5817 901
d8fe1c03
PH
902PH/18 Refactored debugging code in route_finduser() to show more information,
903 in particular, the error code if getpwnam() issues one.
904
16282d2b
PH
905PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
906 This is apparently needed in addition to the PH/07 change above to avoid
907 any possible encoding problems.
908
35d40a98
PH
909PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
910 but not after initializing Perl.
911
034d99ab
PH
912PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
913 output them only if debugging. By default they are written stderr,
914 apparently, which is not desirable.
915
6ec97b1b
PH
916PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
917 queries.
918
e22ca4ac
JJ
919JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
920 --not options
921
922JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
923
33d73e3b
PH
924PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
925 authenticated or an ident call has been made. Suppress the default
926 values for $authenticated_id and $authenticated_sender (but permit -oMai
927 and -oMas) when testing with -bh.
928
9ecb03f3
PH
929PH/24 Re-jigged the order of the tests in the default configuration so that the
930 tests for valid domains and recipients precede the DNS black list and CSA
931 tests, on the grounds that those ones are more expensive.
932
084efe8d
PH
933PH/25 Exim was not testing for a space following SMTP commands such as EHLO
934 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
935 This bug exists in every version of Exim that I still have, right back to
936 0.12.
937
366fc9f0
PH
938PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
939 However, an attempt to turn on case-sensitivity in a regex key by
940 including (?-i) didn't work because the subject string was already
941 lowercased, and the effects were non-intuitive. It turns out that a
942 one-line patch can be used to allow (?-i) to work as expected.
943
c59f5781 944
c887c79e
TF
945Exim version 4.62
946-----------------
947
948TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
949 other effects) broke the use of negated acl sub-conditions.
950
1cce3af8
PH
951PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
952 patch).
953
afb3eaaf
PH
954PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
955 "Deny" causes Exim to reject the incoming connection with a 554 error.
956 Unfortunately, if there is a major crisis, such as a disk failure,
957 tcp-wrappers gives "deny", whereas what one would like would be some
958 kind of temporary error. A kludge has been added to help with this.
959 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
960 554 error is used if errno is still zero or contains ENOENT (which occurs
961 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
962 451 error is used.
963
e173618b
PH
964PH/03 Add -lutil to the default FreeBSD LIBS setting.
965
dd16e114
PH
966PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
967 errors. Otherwise a message that provokes a temporary error (when other
968 messages do not) can cause a whole host to time out.
969
f7fd3850
PH
970PH/05 Batch deliveries by appendfile and pipe transports did not work when the
971 addresses were routed directly to files or pipes from a redirect router.
972 File deliveries just didn't batch; pipe deliveries might have suffered
973 odd errors.
974
d87df92c
PH
975PH/06 A failure to get a lock for a hints database would erroneously always say
976 "Failed to get write lock", even when it was really a read lock.
977
7e9f683d
PH
978PH/07 The appendfile transport was creating MBX lock files with a fixed mode
979 of 0600. This has been changed to use the value of the lockfile_mode
980 option (which defaults to 0600).
981
bfad5236
PH
982PH/08 Applied small patch from the Sieve maintainer.
983
01c490df
PH
984PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
985 folder from quota calculations, a direct delivery into this folder messed
986 up the contents of the maildirsize file. This was because the regex was
987 used only to exclude .Trash (or whatever) when the size of the mailbox
988 was calculated. There was no check that a delivery was happening into an
989 excluded directory. This bug has been fixed by ignoring all quota
990 processing for deliveries into excluded directories.
991
d6629cdc
PH
992PH/10 Added the maildirfolder_create_regex option to appendfile.
993
1cce3af8 994
214e2000
PH
995Exim version 4.61
996-----------------
997
998PH/01 The code for finding all the local interface addresses on a FreeBSD
999 system running IPv6 was broken. This may well have applied to all BSD
1000 systems, as well as to others that have similar system calls. The broken
1001 code found IPv4 interfaces correctly, but gave incorrect values for the
1002 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1003 that it would not match correctly against @[] and not recognize the IPv6
1004 addresses as local.
1005
f9daeae0
PH
1006PH/02 The ipliteral router was not recognizing addresses of the form user@
1007 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1008
7e66e54d
PH
1009PH/03 Added disable_ipv6.
1010
c8ea1597
PH
1011PH/04 Changed $reply_address to use the raw form of the headers instead of the
1012 decoded form, because it is most often used to construct To: headers
1013 lines in autoreplies, and the decoded form may well be syntactically
1014 invalid. However, $reply_address has leading white space removed, and all
1015 newlines turned into spaces so that the autoreply transport does not
1016 grumble.
1017
911f6fde
PH
1018PH/05 If group was specified without a user on a router, and no group or user
1019 was specified on a transport, the group from the router was ignored.
1020
47ca6d6c
PH
1021PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1022 for visible compile-time settings that can be used to change these
1023 numbers, for those that want even more. Backwards compatibility with old
1024 spool files has been maintained. However, going back to a previous Exim
1025 release will lost any variables that are in spool files.
1026
ed0e9820
PH
1027PH/07 Two small changes when running in the test harness: increase delay when
1028 passing a TCP/IP connection to a new process, in case the original
1029 process has to generate a bounce, and remove special handling of
1030 127.0.0.2 (sic), which is no longer necessary.
1031
eff37e47
PH
1032PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1033 be the same on different OS.
1034
1921d2ea
PH
1035PH/09 Moved a debug statement in filter processing to avoid a race problem when
1036 testing.
1037
b3f69ca8
JJ
1038JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1039 whether --show-vars was specified or not
1040
1041JJ/02 exipick: Added support for new ACL variable spool format introduced
1042 in 4.61-PH/06
1043
424a1c63
PH
1044PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1045 syntactically invalid From: or Reply-to: line, and a filter used this to
1046 generate an autoreply, and therefore failed to obtain an address for the
1047 autoreply, Exim could try to deliver to a non-existent relative file
1048 name, causing unrelated and misleading errors. What now happens is that
1049 it logs this as a hard delivery error, but does not attempt to create a
1050 bounce message.
1051
7a100415
PH
1052PH/11 The exinext utility has a -C option for testing purposes, but although
1053 the given file was scanned by exinext itself; it wasn't being passed on
1054 when Exim was called.
1055
19b9dc85
PH
1056PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1057 an end-of-file indication when reading a command response.
1058
309bd837
PH
1059PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1060 compiled. In many other places in Exim, IPv6 addresses are always
1061 recognized, so I have changed this. It also means that IPv4 domain
1062 literals of the form [IPV4:n.n.n.n] are now always recognized.
1063
59e82a2a
PH
1064PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1065 used if the router is not running as root, for example, when verifying at
1066 ACL time, or when using -bh. The debugging output from this situation was
1067 non-existent - all you got was a failure to exec. I have made two
1068 changes:
1069
1070 (a) Failures to set uid/gid, the current directory, or a process leader
1071 in a subprocess such as that created by queryprogram now generate
1072 suitable debugging ouput when -d is set.
1073
1074 (b) The queryprogram router detects when it is not running as root,
1075 outputs suitable debugging information if -d is set, and then runs
1076 the subprocess without attempting to change uid/gid.
1077
9edc04ce
PH
1078PH/15 Minor change to Makefile for building test_host (undocumented testing
1079 feature).
1080
1349e1e5
PH
1081PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1082 additional section of a DNS packet that returns MX or SRV records.
1083 Instead, it always explicitly searches for A/AAAA records. This avoids
1084 major problems that occur when a DNS server includes only records of one
1085 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1086 fixed another bug: if SRV records were looked up and the corresponding
1087 address records were *not* found in the additional section, the port
1088 values from the SRV records were lost.
1089
ea49d0e1
PH
1090PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1091 using the correct key (the original address) when searching the retry
1092 rules in order to find which one to use for generating the retry hint.
1093
064a94c9
PH
1094PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1095 adding the default one. Similarly, if it contains a Reply-To: header, the
1096 errors_reply_to option, if set, is not used.
1097
727071f8
PH
1098PH/19 When calculating a retry time, Exim used to measure the "time since
1099 failure" by looking at the "first failed" field in the retry record. Now
1100 it does not use this if it is later than than the arrival time of the
1101 message. Instead it uses the arrival time. This makes for better
1102 behaviour in cases where some deliveries succeed, thus re-setting the
1103 "first failed" field. An example is a quota failure for a huge message
1104 when small messages continue to be delivered. Without this change, the
1105 "time since failure" will always be short, possible causing more frequent
1106 delivery attempts for the huge message than are intended.
dd16e114 1107 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1108
f78eb7c6
PH
1109PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1110 $1, $2, $3) because the numerical variables can be reset during some
1111 expansion items (e.g. "match"), thereby losing the authentication data.
1112
21c28500
PH
1113PH/21 Make -bV show the size of off_t variables so that the test suite can
1114 decide whether to run tests for quotas > 2G.
1115
1116PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1117 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1118 filecount value is greater than 2G or if a quota value is greater than 2G
1119 on a system where the size of off_t is not greater than 4, a panic error
1120 is given.
1121
1688f43b
PH
1122PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1123 never match. The debug and -bh output now contains an explicit error
1124 message indicating a malformed IPv4 address or mask.
1125
1126PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1127 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1128 PH/23 above applies.
1129
9675b384
PH
1130PH/25 Do not write to syslog when running in the test harness. The only
1131 occasion when this arises is a failure to open the main or panic logs
1132 (for which there is an explicit test).
1133
6a3f1455
PH
1134PH/26 Added the /no_tell option to "control=freeze".
1135
dac79d3e
PH
1136PH/27 If a host name lookup failed very early in a connection, for example, if
1137 the IP address matched host_lookup and the reverse lookup yielded a name
1138 that did not have a forward lookup, an error message of the form "no IP
1139 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1140 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1141
5977a0b3
PH
1142PH/28 An enabling patch from MH: add new function child_open_exim2() which
1143 allows the sender and the authenticated sender to be set when
1144 submitting a message from within Exim. Since child_open_exim() is
1145 documented for local_scan(), the new function should be too.
1146
c91535f3
PH
1147PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1148 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1149 results in an empty string is now treated as unset.
1150
0d46a8c8
PH
1151PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1152
278c6e6c
PH
1153PH/31 Added sender_verify_fail logging option.
1154
2cbb4081
PH
1155PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1156 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1157 tidied the source and removed it altogether.
1158
3eef829e
PH
1159PH/33 When a queue run was abandoned because the load average was too high, a
1160 log line was always written; now it is written only if the queue_run log
1161 selector is set. In addition, the log line for abandonment now contains
1162 information about the queue run such as the pid. This is always present
1163 in "start" and "stop" lines but was omitted from the "abandon" line.
1164
1ab95fa6
PH
1165PH/34 Omit spaces between a header name and the colon in the error message that
1166 is given when verify = headers_syntax fails (if there are lots of them,
1167 the message gets confusing).
1168
230205fc
PH
1169PH/35 Change the default for dns_check_names_pattern to allow slashes within
1170 names, as there are now some PTR records that contain slashes. This check
1171 is only to protect against broken name servers that fall over on strange
1172 characters, so the fact that it applies to all lookups doesn't matter.
1173
75e0e026
PH
1174PH/36 Now that the new test suite is complete, we can remove some of the
1175 special code in Exim that was needed for the old test suite. For example,
1176 sorting DNS records because real resolvers return them in an arbitrary
1177 order. The new test suite's fake resolver always returns records in the
1178 same order.
1179
1180PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1181 bounces) except when queue_only is set, to avoid logging races between
1182 the different processes.
1183
145396a6
PH
1184PH/38 Panic-die if .include specifies a non-absolute path.
1185
3cd34f13
PH
1186PH/39 A tweak to the "H" retry rule from its user.
1187
11121d3d
JJ
1188JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1189 a label. They prevented compilation on older perls.
1190
1191JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1192 a warning to be raised on newish perls.
1193
1194JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1195 on queue. Changes to match documented behaviour of showing count of
1196 messages matching specified criteria.
1197
8def5aaf
PH
1198PH/40 Changed the default ident timeout from 30s to 5s.
1199
929ba01c
PH
1200PH/41 Added support for the use of login_cap features, on those BSD systems
1201 that have them, for controlling the resources used by pipe deliveries.
1202
2632889e
PH
1203PH/42 The content-scanning code uses fopen() to create files in which to put
1204 message data. Previously it was not paying any attention to the mode of
1205 the files. Exim runs with umask(0) because the rest of the code creates
1206 files with open(), and sets the required mode explicitly. Thus, these
1207 files were ending up world-writeable. This was not a big issue, because,
1208 being within the spool directory, they were not world-accessible. I have
1209 created a function called modefopen, which takes an additional mode
1210 argument. It sets umask(777), creates the file, chmods it to the required
1211 mode, then resets the umask. All the relevant calls to fopen() in the
1212 content scanning code have been changed to use this function.
1213
944a9c55
PH
1214PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1215 to 24 hours. This avoids potential overflow problems when processing G
1216 and H retry rules. I suspect nobody ever tinkers with this value.
1217
4a23603b
PH
1218PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1219
4730f942
PH
1220PH/45 When the plaintext authenticator is running as a client, the server's
1221 challenges are checked to ensure they are valid base64 strings. By
1222 default, the authentication attempt is cancelled if an invalid string is
1223 received. Setting client_ignore_invalid_base64 true ignores these errors.
1224 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1225 they are received. Thus, the responses can be made to depend on the
1226 challenges. If an invalid string is ignored, an empty string is placed in
1227 the variable.
1228
30dba1e6
PH
1229PH/46 Messages that are created by the autoreply transport now contains a
1230 References: header, in accordance with RFCs 2822 and 3834.
1231
382afc6b
PH
1232PH/47 Added authenticated_sender_force to the smtp transport.
1233
a86229cf
PH
1234PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1235
50c99ba6
PH
1236PH/49 Installed latest patch from the Sieve maintainer.
1237
d35e429d
PH
1238PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1239 was also set, the appendfile transport was unnecessarily scanning a
1240 directory of message files (e.g. for maildir delivery) to find the count
1241 of files (along with the size), even though it did not need this
1242 information. It now does the scan only if it needs to find either the
1243 size of the count of files.
1244
f90d018c
PH
1245PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1246
75def545
PH
1247PH/52 Two bugs concerned with error handling when the smtp transport is
1248 used in LMTP mode:
1249
1250 (i) Exim was not creating retry information for temporary errors given
1251 for individual recipients after the DATA command when the smtp transport
1252 was used in LMTP mode. This meant that they could be retried too
1253 frequently, and not timed out correctly.
1254
1255 (ii) Exim was setting the flag that allows error details to be returned
1256 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1257 recipients that were returned after the DATA command.
1258
1259PH/53 This is related to PH/52, but is more general: for any failing address,
1260 when detailed error information was permitted to be returned to the
1261 sender, but the error was temporary, then after the final timeout, only
1262 "retry timeout exceeded" was returned. Now it returns the full error as
1263 well as "retry timeout exceeded".
1264
c46782ef
PH
1265PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1266 do this, and (what is worse) MTAs that accept it.
1267
71fafd95
PH
1268PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1269 will now be deprecated.
1270
2c5db4fd
PH
1271PH/56 New os.c-cygwin from the Cygwin maintainer.
1272
9cf6b11a
JJ
1273JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1274 formats (previously only available in exim formats via -bpr, -bpru,
1275 and -bpra. Now also available in native and exiqgrep formats)
1276
1277JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1278 with very large, slow to parse queues
1279
1280JJ/08 exipick: added ! as generic prefix to negate any criteria format
1281
1282JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1283
898d150f
PH
1284PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1285 responses to authentication challenges, though it was showing the
1286 challenges; (ii) I've removed the CR characters from the debug output for
1287 SMTP output lines.
1288
46218253
PH
1289PH/58 Allow for the insertion of a newline as well as a space when a string
1290 is turned into more than one encoded-word during RFC 2047 encoding. The
1291 Sieve code now uses this.
1292
e97957bc
PH
1293PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1294 data_4xx, lost_connection, tls_required.
1295
81e509d7
PH
1296PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1297 message was being sent as an SMTP response.
1298
3d240ff7
PH
1299PH/61 Add -l and -k options to exicyclog.
1300
b37c4101
PH
1301PH/62 When verifying, if an address was redirected to one new address, so that
1302 verification continued, and the new address failed or deferred after
1303 having set something in $address_data, the value of $address_data was not
1304 passed back to the ACL. This was different to the case when no
1305 redirection occurred. The value is now passed back in both cases.
1306
79378e0f
PH
1307PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1308 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1309 use login_cap.h, so on its own it isn't the distinguishing feature. The
1310 new name refers directly to the setclassresources() function.
1311
e49c7bb4
PH
1312PH/65 Added configuration files for NetBSD3.
1313
d114ec46
PH
1314PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1315
f3d7df6c
PH
1316PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1317 is preferred over IPv4.
1318
715ab376
PH
1319PH/68 The bounce_return_message and bounce_return_body options were not being
1320 honoured for bounces generated during the reception of non-SMTP messages.
1321 In particular, this applied to messages rejected by the ACL. This bug has
1322 been fixed. However, if bounce_return_message is true and bounce_return_
1323 body is false, the headers that are returned for a non-SMTP message
1324 include only those that have been read before the error was detected.
1325 (In the case of an ACL rejection, they have all been read.)
1326
6b31b150
PH
1327PH/69 The HTML version of the specification is now built in a directory called
1328 spec_html instead of spec.html, because the latter looks like a path with
1329 a MIME-type, and this confuses some software.
1330
1331PH/70 Catch two compiler warnings in sieve.c.
1332
d515a917
PH
1333PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1334 function verify_get_ident() calls ip_connect() to connect a socket, but
1335 if the "connect()" function timed out, ip_connect() used to close the
1336 socket. However, verify_get_ident() also closes the socket later, and in
1337 between Exim writes to the log, which may get opened at this point. When
1338 the socket was closed in ip_connect(), the log could get the same file
1339 descriptor number as the socket. This naturally causes chaos. The fix is
1340 not to close the socket in ip_connect(); the socket should be closed by
1341 the function that creates it. There was only one place in the code where
1342 this was missing, in the iplookup router, which I don't think anybody now
1343 uses, but I've fixed it anyway.
1344
9b8fadde
PH
1345PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1346 well as to direct DNS lookups. Otherwise the handling of names in host
1347 lists is inconsistent and therefore confusing.
1348
214e2000 1349
5de37277
PH
1350Exim version 4.60
1351-----------------
1352
cc38ddbf
PH
1353PH/01 Two changes to the default runtime configuration:
1354
1355 (1) Move the checks for relay_from_hosts and authenticated clients from
1356 after to before the (commented out) DNS black list checks.
1357
1358 (2) Add control=submission to the relay_from_hosts and authenticated
1359 clients checks, on the grounds that messages accepted by these
1360 statements are most likely to be submissions.
5de37277 1361
72fdd6ae
PH
1362PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1363
1364 (1) Generate an error if the third argument for the ${prvs expansion is
1365 not a single digit.
1366
1367 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1368 string.
1369
1370 (3) Reset the variables that are obtained from the first argument of
1371 ${prvscheck and used in the second argument before leaving the code,
1372 because their memory is reclaimed, so using them afterwards may do
1373 silly things.
1374
1375 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1376 one (it's much easier than Tom thought :-).
1377
1378 (5) Because of (4), we can now allow for the use of $prvscheck_result
1379 inside the third argument.
cb9328de 1380
cb741023
PH
1381PH/03 For some reason, the default setting of PATH when running a command from
1382 a pipe transport was just "/usr/bin". I have changed it to
1383 "/bin:/usr/bin".
1384
f174f16e
PH
1385PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1386 anything to be listed in the output from -bV.
b2f5a032 1387
c25242d7
PH
1388PH/05 When a filter generated an autoreply, the entire To: header line was
1389 quoted in the delivery log line, like this:
1390
1391 => >A.N.Other <ano@some.domain> <original@ddress> ...
1392
1393 This has been changed so that it extracts the operative address. There
1394 may be more than one such address. If so, they are comma-separated, like
1395 this:
1396
1397 => >ano@some.domain,ona@other.domain <original@ddress> ...
1398
82c19f95
PH
1399PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1400 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1401 not being looked up in the rDNS to get a host name, Exim was showing the
1402 IP address twice in Received: lines, even though the IP addresses were
1403 identical. For example:
1404
1405 Received: from [1.2.3.4] (helo=[1.2.3.4])
1406
1407 However, if the real host name was known, it was omitting the HELO data
1408 if it matched the actual IP address. This has been tidied up so that it
1409 doesn't show the same IP address twice.
1410
d7ffbc12
PH
1411PH/07 When both +timestamp and +memory debugging was on, the value given by
1412 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1413 called by the debug printing, thereby overwriting the timestamp buffer.
1414 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1415
9f526266
PH
1416PH/08 When the original message was included in an autoreply transport, it
1417 always said "this is a copy of the message, including all the headers",
1418 even if body_only or headers_only was set. It now gives an appropriate
1419 message.
1420
87fcc8b9
PH
1421PH/09 Applied a patch from the Sieve maintainer which:
1422
1423 o fixes some comments
1424 o adds the (disabled) notify extension core
1425 o adds some debug output for the result of if/elsif tests
1426 o points to the current vacation draft in the documentation
1427 and documents the missing references header update
1428
1429 and most important:
1430
1431 o fixes a bug in processing the envelope test (when testing
1432 multiple envelope elements, the last element determinted the
1433 result)
1434
456682f5
PH
1435PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1436 Electronic Mail") by including:
1437
1438 Auto-submitted: auto-generated
1439
1440 in the messages that it generates (bounce messages and others, such as
1441 warnings). In the case of bounce messages for non-SMTP mesages, there was
1442 also a typo: it was using "Auto_submitted" (underscore instead of
1443 hyphen). Since every message generated by Exim is necessarily in response
1444 to another message, thes have all been changed to:
1445
1446 Auto-Submitted: auto-replied
1447
1448 in accordance with these statements in the RFC:
1449
1450 The auto-replied keyword:
1451
1452 - SHOULD be used on messages sent in direct response to another
1453 message by an automatic process,
1454
1455 - MUST NOT be used on manually-generated messages,
1456
1457 - MAY be used on Delivery Status Notifications (DSNs) and Message
1458 Disposition Notifications (MDNs),
1459
1460 - MUST NOT be used on messages generated by automatic or periodic
1461 processes, except for messages which are automatic responses to
1462 other messages.
1463
3e46c1aa
PH
1464PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1465 to the default Received: header definition.
456682f5 1466
49826d12
PH
1467PH/12 Added log selector acl_warn_skipped (default on).
1468
eba0c039
PH
1469PH/13 After a successful wildlsearch lookup, discard the values of numeric
1470 variables because (a) they are in the wrong storage pool and (b) even if
1471 they were copied, it wouldn't work properly because of the caching.
1472
a0d6ba8a
PH
1473PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1474 checking when decoding. Apparently there are clients that generate
1475 overlong encoded strings. Why am I not surprised?
1476
f0917727
PH
1477PH/15 If the first argument of "${if match_address" was not empty, but did not
1478 contain an "@" character, Exim crashed. Now it writes a panic log message
1479 and treats the condition as false.
1480
096fee00
PH
1481PH/16 In autoreply, treat an empty string for "once" the same as unset.
1482
024bd3c2
PH
1483PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1484 extension "envelope-auth". The code is finished and in agreement with
1485 other implementations, but there is no documentation so far and in fact,
1486 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1487 not changing the active code.
1488
1489 Print executed "if" and "elsif" statements when debugging is used. This
1490 helps a great deal to understand what a filter does.
1491
1492 Document more things not specified clearly in RFC3028. I had all this
1493 sorted out, when out of a sudden new issues came to my mind. Oops."
1494
df199fec
PH
1495PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1496 (Bugzilla #53).
1497
d27f1df3
PH
1498PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1499 canonical form (as documented). However, after a host name lookup from
1500 the IP address, check_host() was doing a simple string comparison with
1501 addresses acquired from the DNS when checking that the found name did
1502 have the original IP as one of its addresses. Since any found IPv6
1503 addresses are likely to be in abbreviated form, the comparison could
1504 fail. Luckily, there already exists a function for doing the comparison
1505 by converting both addresses to binary, so now that is used instead of
1506 the text comparison.
1507
96776534
PH
1508PH/20 There was another similar case to PH/19, when a complete host name was
1509 given in a host list; looking up its IP address could give an abbreviated
1510 form, whereas the current host's name might or might not be abbreviated.
1511 The same fix has been applied.
1512
5de37277 1513
9a799bc0
PH
1514Exim version 4.54
1515-----------------
1516
1517PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1518 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1519 It now does.
1520
99a4b039
PH
1521PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1522 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1523
1524PH/03 Typo: missing ".o" in src/pcre/Makefile.
1525
4b233853
PH
1526PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1527 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1528 Also, for "Auto-Submitted", treat anything other than "no" as
1529 non-personal, in accordance with RFC 3834. (Previously it treated
1530 anything starting "auto-" as non-personal.)
1531
8857ccfd
PH
1532TF/01 The control=submission/name=... option had a problem with syntax
1533 errors if the name included a slash character. The /name= option
1534 now slurps the rest of the string, so it can include any characters
1535 but it must come last in the list of options (after /sender_retain
1536 or /domain=).
1537
433a2980
PH
1538PH/05 Some modifications to the interface to the fake nameserver for the new
1539 testing suite.
1540
3e46c1aa 1541
9a799bc0 1542
e3a311ba
TK
1543Exim version 4.53
1544-----------------
1545
1546TK/01 Added the "success_on_redirect" address verification option. See
1547 NewStuff for rationale and an example.
1548
13b685f9
PH
1549PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1550
395ff96d
PH
1551PH/02 Patch to exigrep to allow it to work on syslog lines.
1552
5b68f6e4
PH
1553PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1554 fread() to skip over the body file's header line, because in Cygwin the
1555 header line is locked and is inaccessible.
1556
1ab52c69
PH
1557PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1558 co-exist for some time) to make it clear that it is the Exim ID that is
1559 referenced, not the Message-ID: header line.
1560
b07e6aa3
PH
1561PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1562 string_format() function, because snprintf() does not exist on all
1563 operating systems.
1564
254e032f
PH
1565PH/06 The use of forbid_filter_existstest now also locks out the use of the
1566 ${stat: expansion item.
1567
3af76a81
PH
1568PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1569 protocol synchronization error", to keep the pedants happy.
1570
2548ba04
PH
1571PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1572 well as for IRIX systems, when gcc is being used. See the host.c source
1573 file for comments.
1574
b6c6011d
PH
1575PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1576
cf39cf57
PH
1577PH/10 Named domain lists were not working if used in a queue_smtp_domains
1578 setting.
1579
f1513293
PH
1580PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1581 transport and to the smtp transport in LMTP mode.
1582
727549a4
PH
1583TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1584
af46795e
PH
1585PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1586 run a filter in a subprocess. This could lead to confusion in subsequent
1587 lookups in the parent process. There should also be a search_tidyup() at
1588 the end of the subprocess.
1589
d7b47fd0
PH
1590PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1591 only if the host matched helo_try_verify_hosts, which caused the
1592 verification to occur when the EHLO/HELO command was issued. The ACL just
1593 tested the remembered result. Now, if a previous verification attempt has
1594 not happened, "verify = helo" does it there and then.
1595
ee744174
JJ
1596JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1597
b582ab87
PH
1598TK/03 Fix log output including CR from clamd.
1599
41a13e0a
PH
1600PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1601 exist provoked a memory error which could cause a segfault.
1602
f625cc5a
PH
1603PH/15 Installed PCRE 6.2
1604
1605PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1606
21f7af35
PH
1607PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1608 of the problem. Specifically, suggested +O2 rather than +O1 for the
1609 HP-UX compiler.
1610
31480e42
PH
1611PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1612
2d280592
PH
1613PH/20 If a delivery was routed to a non-standard port by means of an SRV
1614 record, the port was not correctly logged when the outgoing_port log
1615 selector was set (it logged the transort's default port).
1616
7cd1141b
PH
1617PH/21 Added support for host-specific ports to manualroute, queryprogram,
1618 fallback_hosts, and "hosts" in the smtp transport.
1619
1620PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1621 host errors such as "Connection refused".
1622
750af86e
PH
1623PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1624 authentication with radiusclient 0.4.9:
1625
1626 - Error returned from rc_read_config was caught wrongly
1627 - Username/password not passed on to radius server due to wrong length.
1628
1629 The presumption is that some radiusclient API changes for 4.51/PH/17
1630 were not taken care of correctly. The code is still untested by me (my
1631 Linux distribution still has 0.3.2 of radiusclient), but it was
1632 contributed by a Radius user.
1633
1634PH/24 When doing a callout, the value of $domain wasn't set correctly when
1635 expanding the "port" option of the smtp transport.
1636
4304270b
TK
1637TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1638 while reading a MIME header. Thanks to Tom Hughes for a patch.
1639
750af86e
PH
1640PH/24 Include config.h inside local_scan.h so that configuration settings are
1641 available.
1642
64ffc24f
PH
1643PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1644 that in an ACL for RCPT (for example), you can examine exactly what was
1645 received.
1646
5dd9625b
PH
1647PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1648 commands, but it was not correctly comparing the address with the actual
1649 client host address. Thus, it would show the EHLO address in Received:
1650 header lines when this was not necessary.
1651
5591031b
PH
1652PH/27 Added the % operator to ${eval:}.
1653
ba18e66a
PH
1654PH/28 Exim tries to create and chdir to its spool directory when it starts;
1655 it should be ignoring failures (because with -C, for example, it has lost
1656 privilege). It wasn't ignoring creation failures other than "already
1657 exists".
1658
9cec981f
PH
1659PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1660 -bV or -d is used.
1661
aa2b5c79
PH
1662PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1663 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1664 too many continuations, the temporary file was not being removed, and the
1665 return code was incorrect.
aa2b5c79 1666
48a53b7f
PH
1667PH/31 Missing "BOOL" in function definition in filtertest.c.
1668
1c59d63b
PH
1669PH/32 Applied Sieve patches from the maintainer.
1670
671012da
TK
1671TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1672
1509d3a8
PH
1673PH/33 Added "verify = not_blind".
1674
1675PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1676 Local/Makefile (with some defaults set). These are used in built scripts
1677 such as exicyclog, but they have never been used in the exim_install
1678 script (though there are many overriding facilities there). I have
1679 arranged that the exim_install script now takes note of these two
1680 settings.
1681
1682PH/35 Installed configuration files for Dragonfly.
1683
2fe1a124
PH
1684PH/36 When a locally submitted message by a trusted user did not contain a
1685 From: header, and the sender address was obtained from -f or from an SMTP
1686 MAIL command, and the trusted user did not use -F to supply a sender
1687 name, $originator_name was incorrectly used when constructing a From:
1688 header. Furthermore, $originator_name was used for submission mode
1689 messages from external hosts without From: headers in a similar way,
1690 which is clearly wrong.
1691
8800895a
PH
1692PH/37 Added control=suppress_local_fixups.
1693
ccfdb010
PH
1694PH/38 When log_selector = +received_sender was set, and the addition of the
1695 sender made the log line's construction buffer exactly full, or one byte
1696 less than full, an overflow happened when the terminating "\n" was
1697 subsequently added.
1698
1130bfb0
PH
1699PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1700 when the result of a list match is failure because a DNS lookup failed.
1701
ebcb507f
PH
1702PH/40 RM_COMMAND is now used in the building process.
1703
c35e155c
PH
1704PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1705 the "build-* directories that it finds.
1706
95d1f782
PH
1707PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1708 address in a domain literal was a prefix of an interface address.
1709
fd6de02e
PH
1710PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1711 when verifying a sender address, unless rewrite_headers is false.
1712
58de37c5
PH
1713PH/44 Wrote a long comment about why errors_to addresses are verified as
1714 recipients, not senders.
1715
261cf466
TF
1716TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1717 the ratelimit ACL was added.
1718
3ee512ff
PH
1719PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1720
e08c430f
PH
1721PH/46 Added extra information about PostgreSQL errors to the error string.
1722
bef5a11f
PH
1723PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1724 avoiding the need to install special zones in a real server. This is
1725 backwards compatible; if it can't find the fake resolver, it drops back.
1726 Thus, both old and new test suites can be run.
1727
7546de58
TF
1728TF/02 Added util/ratelimit.pl
1729
e5d5a95f
TF
1730TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1731 clock is set back in time.
1732
2e88a017
TF
1733TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1734 Candler <B.Candler@pobox.com>.
1735
a5f65aa4
TF
1736TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1737 OK for addresses that are the result of redirections.
1738
e7726cbf
PH
1739PH/48 A number of further additions for the benefit of the new test suite,
1740 including a fake gethostbyname() that interfaces to the fake DNS resolver
1741 (see PH/47 above).
1742
a7fdad5b
TF
1743TF/06 The fix for widen_domains has also been applied to qualify_single and
1744 search_parents which are the other dnslookup options that can cause
1745 header rewrites.
1746
6af56900
PH
1747PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1748 type ("H").
1749
0925ede6
PH
1750PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1751
66afa403
TF
1752TF/07 Exim produced the error message "an SRV record indicated no SMTP
1753 service" if it encountered an MX record with an empty target hostname.
1754 The message is now "an MX or SRV record indicated no SMTP service".
1755
0154e85a
TF
1756TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1757 if the DNS of the sending site is misconfigured. This is quite a
1758 common situation. This change restores the behaviour of treating a
1759 helo verification defer as a failure.
1760
16f12c76
PH
1761PH/51 If self=fail was set on a router, the bounce message did not include the
1762 actual error message.
1763
bbe902f0 1764
e5a9dba6
PH
1765Exim version 4.52
1766-----------------
1767
1768TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1769
22c3b60b
PH
1770PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1771 command itself ended in error, the underlying message about the transport
1772 filter timeout was being overwritten with the pipe command error. Now the
1773 underlying error message should be appended to the second error message.
1774
06a9b4b5
PH
1775TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1776
c1ac6996
PH
1777PH/02 Reduce the amount of output that "make" produces by default. Full output
1778 can still be requested.
1779
9c7a242c
PH
1780PH/03 The warning log line about a condition test deferring for a "warn" verb
1781 was being output only once per connection, rather than after each
1782 occurrence (because it was using the same function as for successful
1783 "warn" verbs). This seems wrong, so I have changed it.
1784
87ba3f5f
PH
1785TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1786 it should not have, which might have caused a crash in the right
1787 circumstances, but probably never did.
1788
1789PH/04 Installed a modified version of Tony Finch's patch to make submission
1790 mode fix the return path as well as the Sender: header line, and to
1791 add a /name= option so that you can make the user's friendly name appear
1792 in the header line.
1793
29aba418
TF
1794TF/03 Added the control = fakedefer ACL modifier.
1795
fe0dab11
TF
1796TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1797 Mark Lowes for thorough testing.
870f6ba8 1798
11d337a4
TK
1799TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1800
1801TK/03 Merged latest SRS patch from Miles Wilton.
1802
415c8f3b
PH
1803PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1804 with the definition in sysexits.h (which is #included earlier).
1805 Fortunately, Exim does not actually use EX_OK. The code used to try to
1806 preserve the sysexits.h value, by assumimg that macro definitions were
1807 scanned for macro replacements. I have been disabused of this notion,
1808 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1809
958541e9
PH
1810PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1811 in the smtp transport. When a block could not be written in a single
1812 write() function, the timeout was being re-applied to each part-write.
1813 This seems wrong - if the receiver was accepting one byte at a time it
1814 would take for ever. The timeout is now adjusted when this happens. It
1815 doesn't have to be particularly precise.
1816
c206415f
TK
1817TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1818 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1819
2a4be8f9
PH
1820PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1821 without a domain if the check to <postmaster@domain> fails.
1822
1cba11c5
SC
1823SC/01 Eximstats: added -xls and the ability to specify output files
1824 (patch written by Frank Heydlauf).
1825
1826SC/02 Eximstats: use FileHandles for outputing results.
1827
1828SC/03 Eximstats: allow any combination of xls, txt, and html output.
1829
1830SC/04 Eximstats: fixed display of large numbers with -nvr option
1831
1832SC/05 Eximstats: fixed merging of reports with empty tables.
1833
1834SC/06 Eximstats: added the -include_original_destination flag
1835
1836SC/07 Eximstats: removed tabs and trailing whitespace.
1837
1005d00e
TK
1838TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1839
1840TK/06 MBOX spool code: Add real "From " MBOX separator line
1841 so the .eml file is really in mbox format (even though
1842 most programs do not really care). Patch from Alex Miller.
1843
1844TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1845 The latter is generated from $received_to and is only set if the
1846 message has one envelope recipient. SA can use these headers,
1847 obviously out-of-the-box. Patch from Alex Miller.
1848
9b4768fa
PH
1849PH/08 The ${def test on a variable was returning false if the variable's
1850 value was "0", contrary to what the specification has always said!
1851 The result should be true unless the variable is empty.
1852
1853PH/09 The syntax error of a character other than { following "${if
1854 def:variable_name" (after optional whitespace) was not being diagnosed.
1855 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1856 accidental colon was present, for example, could give incorrect results.
1857
0d7eb84a
PH
1858PH/10 Tidied the code in a number of places where the st_size field of a stat()
1859 result is used (not including appendfile, where other changes are about
1860 to be made).
1861
1862PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1863 This involved changing a lot of size variables from int to off_t. It
1864 should work with maildirs and everything.
1865
40727bee
TK
1866TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1867 spamd dying while we are connected to it.
1868
554d2369
TF
1869TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1870 <jgh@wizmail.org>
1871
1f922db1
PH
1872PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1873 function for BDB 4.3.
1874
ef213c3b
PH
1875PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1876
8ac170f3
PH
1877PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1878 the sources for PCRE have been re-arranged and more files are now
1879 involved.
1880
b1c749bb
PH
1881PH/15 The code I had for printing potentially long long variables in PH/11
1882 above was not the best (it lost precision). The length of off_t variables
1883 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1884 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1885 to be "long long int" or "long int". This is needed for the internal
1886 formatting function string_vformat().
b1c749bb 1887
4aac9b49
PH
1888PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1889 the configuration file to be ":syslog", then the script "guesses" where
1890 the logs files are, rather than using the compiled in default. In our
1891 case the guess is not the same as the compiled default, so the script
1892 suddenly stopped working when I started to use syslog. The patch checks
1893 to see if log_file_path is "". If so, it attempts to read it from exim
1894 with no configuration file to get the compiled in version, before it
1895 falls back to the previous guessing code."
1896
294520c8
TK
1897TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1898 implementing BATV in an Exim configuration. See NewStuff for the gory
1899 details.
1900
5bd022fe
PH
1901PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1902 Makefile that are specific to HP-UX.
1903
90e9ce59
PH
1904PH/18 If the "use_postmaster" option was set for a recipient callout together
1905 with the "random" option, the postmaster address was used as the MAIL
1906 FROM address for the random test, but not for the subsequent recipient
1907 test. It is now used for both.
1908
5ea81592
PH
1909PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1910 patch removes a few documentation additions to RFC 3028, because the
1911 latest draft now contains them. It adds the new en;ascii-case comparator
1912 and a new error check for 8bit text in MIME parts. Comparator and
1913 require names are now matched exactly. I enabled the subaddress
1914 extension, but it is not well tested yet (read: it works for me)."
1915
c6c2dc1d
PH
1916PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1917 rework some of the code of TK/09 above to avoid the hardwired use of
1918 "%lld" and "long long". Replaced the call to snprintf() with a call to
1919 string_vformat().
1920
fffffe4c
PH
1921PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1922 records point to non-existent hosts", "retry timeout exceeded", and
1923 "retry time not reached for any host after a long failure period".
ca02eafb 1924
9a26b6b2
PH
1925PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1926 experimental DomainKeys support:
1927
1928 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1929 (2) On an error such as an illegally used "control", the wrong name for
1930 the control was given.
1931
1932 These problems did NOT occur unless DomainKeys support was compiled.
1933
4aee0225
PH
1934PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1935
32d668a5
PH
1936PH/24 Added ${if match_ip condition.
1937
8187c3f3
PH
1938PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1939 databases so that it will be absolutely obvious if a crash occurs in the
1940 DB library. This is a regular occurrence (often caused by mis-matched
1941 db.h files).
1942
ff790e47 1943PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1944 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1945 picked up on a user's system that detects such things. There doesn't seem
1946 to be a gcc warning option for this - only an attribute that has to be
1947 put on the function's prototype. It seems that in Fedora Core 4 they have
1948 set this on a number of new functions. No doubt there will be more in due
1949 course.
ff790e47 1950
5417f6d1
PH
1951PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1952 specify a transport. However, if an address that was verified by such a
1953 router was the subject of a callout, Exim crashed because it tried to
1954 read the rcpt_include_affixes from the non-existent transport. Now it
1955 just assumes that the setting of that option is false. This bug was
1956 introduced by 4.51/PH/31.
1957
59cf8544
PH
1958PH/28 Changed -d+all to exclude +memory, because that information is very
1959 rarely of interest, but it makes the output a lot bigger. People tend to
1960 do -d+all out of habit.
1961
e7ad8a65
PH
1962PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1963 code in os-type was giving problems when libc.so lives in lib64, like on
1964 x86_64 Fedora Core.
1965
ade42478
PH
1966PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1967 aren't the modern standard, and it seems that some systems' include files
1968 don't always have them. Exim was already checking for some of the newer
1969 ones like T_AAAA, and defining it itself. I've added checks for all the
1970 record types that Exim uses.
1971
182ad5cf
PH
1972PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1973 not automatically generating a new one, as it is supposed to. This
1974 prevented TLS from working. If the file did exist, but contained invalid
1975 data, a new version was generated, as expected. It was only the case of a
1976 non-existent file that was broken.
1977
b0d9fc80
TK
1978TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1979 with a change in libdomainkeys > 0.64.
1980
1981TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1982 from DNS. If the selector record carries the flag, it now has
1983 precedence over the domain-wide flag.
1984
1985TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1986
47c7a64a
PH
1987PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1988 the use of a port name that isn't defined in /etc/services) occurred, the
1989 message was deferred as in a normal delivery, and thus remained on the
1990 spool, instead of being failed because of the mua_wrapper setting. This
1991 is now fixed, and I tidied up some of the mua_wrapper messages at the
1992 same time.
1993
a388bce4
SC
1994SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1995 the messages in a hash of arrays rather than using individual hashes.
1996 This is a bit cleaner and results in dramatic memory savings, albeit
1997 at a slight CPU cost.
1998
1999SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2000 as requested by Marc Sherman.
2001
2002SC/10 Eximstats: added histograms for user specified patterns as requested
2003 by Marc Sherman.
2004
0793e4ed
SC
2005SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2006
c58b88df
PH
2007PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2008 fopen() in the content-scanning modules that did not already have it.
2009
e7ad8a65 2010
7982096b
PH
2011Exim version 4.51
2012-----------------
2013
1a46a8c5
PH
2014TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2015 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2016
2f079f46 2017TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2018
2019TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2020
2021PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2022 to test Sieve filters that use "vacation".
2023
2024PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2025 that changes the way the GnuTLS parameters are stored in the cache file.
2026 The new format can be generated externally. For backward compatibility,
2027 if the data in the cache doesn't make sense, Exim assumes it has read an
2028 old-format file, and it generates new data and writes a new file. This
2029 means that you can't go back to an older release without removing the
2030 file.
2031
2032PH/03 A redirect router that has both "unseen" and "one_time" set does not
2033 work if there are any delivery delays because "one_time" forces the
2034 parent to be marked "delivered", so its unseen clone is never tried
2035 again. For this reason, Exim now forbids the simultaneous setting of
2036 these two options.
2037
2038PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2039 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2040 entry if you want to know the details. The fix, however, neglected to
2041 consider the case when local delivery batching is involved. The test for
2042 "previously delivered" was not happening when checking to see if an
2043 address could be batched with a previous (undelivered) one; under
2044 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2045 address.
1a46a8c5
PH
2046
2047PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2048 in its include files, and this causes problems building Exim.
2049
2050PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2051 header_syntax) but Exim was just ignoring anything given after a slash.
2052 In particular, this caused confusion with an attempt to use "verify =
2053 reverse_host_lookup/defer_ok". An error is now given when options are
2054 supplied for verify items that do not have them. (Maybe reverse_host_
2055 lookup should have a defer_ok option, but that's a different point.)
2056
2057PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2058 defined by RFC 821) to 2048, because there were problems with some AUTH
2059 commands, and RFC 1869 says the size should be increased for extended
2060 SMTP commands that take arguments.
2061
2062PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2063 Finch).
2064
2065PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2066 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2067
49c2d5ea
PH
2068PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2069 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2070 whatever). Otherwise the password may appear in the log. Following change
2071 PH/42 below, there is no longer a chance of it appearing in a bounce
2072 message.
49c2d5ea 2073
bf759a8b
PH
2074PH/11 Installed exipick version 20050225.0 from John Jetmore.
2075
83364d30
PH
2076PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2077 of its addresses was ever tried. (Bugzilla bug #2.)
2078
7999bbd7
PH
2079PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2080 the result incorrectly in the debug output. (It correctly added a newline
2081 to what was transported.)
2082
7dbf77c9
PH
2083TF/01 Added $received_time.
2084
74e0617f
PH
2085PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2086 commented out examples of how to interface to a virus scanner and to
2087 SpamAssassin. Also added commented examples of av_scanner and
2088 spamd_address settings.
2089
2f079f46
PH
2090PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2091 and controls are allowed in which ACLs. There were a couple of minor
2092 errors. Some of the entries in the conditions table (which is a table of
2093 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2094 negation of where the condition IS allowed.
2095
8c841523
PH
2096PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2097
7766a4f0
PH
2098PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2099 header file does not have a version number, so I've had to invent a new
2100 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2101 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2102 radiusclient), but it was contributed by a Radius user.
2103
8b417f2c
PH
2104PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2105 files or directories, for OpenSSL.
2106
901f42cb
PH
2107PH/19 When an Exim process that is running as root has to create an Exim log
2108 file, it does so in a subprocess that runs as exim:exim so as to get the
2109 ownership right at creation (otherwise, other Exim processes might see
2110 the file with the wrong ownership). There was no test for failure of this
2111 fork() call, which would lead to the process getting stuck as it waited
2112 for a non-existent subprocess. Forks do occasionally fail when resources
2113 run out. I reviewed all the other calls to fork(); they all seem to check
2114 for failure.
2115
f9b9210e
PH
2116PH/20 When checking for unexpected SMTP input at connect time (before writing
2117 the banner), Exim was not dealing correctly with a non-positive return
2118 from the read() function. If the client had disconnected by this time,
2119 the result was a log entry for a synchronization error with an empty
2120 string after "input=" when read() returned zero. If read() returned -1
2121 (an event I could not check), uninitialized data bytes were printed.
2122 There were reports of junk text (parts of files, etc) appearing after
2123 "input=".
2124
54cdb463
PH
2125PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2126
cf00dad6
PH
2127PH/22 Added support for macro redefinition, and (re)definition in between
2128 driver and ACL definitions.
2129
acb1b346
PH
2130PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2131 forgetting to use the resulting value; it was using the unexpanded value.
2132
c5ddb310
PH
2133PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2134 hadn't been configured. The fix is from Juergen Kreileder, who
2135 understands it better than I do:
2136
2137 "Here's what I see happening with three configured cyrus_sasl
2138 authenticators configured (plain, login, cram-md5):
2139
2140 On startup auth_cyrus_sasl_init() gets called for each of these.
2141 This means three calls to sasl_listmech() without a specified mech_list.
2142 => SASL tests which mechs of all available mechs actually work
2143 => three warnings about OTP not working
2144 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2145
2146 With the patch, sasl_listmech() also gets called three times. But now
2147 SASL's mech_list option is set to the server_mech specified in the the
2148 authenticator. Or in other words, the answer from sasl_listmech()
2149 gets limited to just the mech you're testing for (which is different
2150 for each call.)
2151 => the return list contains just 'plain' or 'login', 'cram-md5' or
2152 nothing depending on the value of ob->server_mech.
2153
2154 I've just tested the patch: Authentication still works fine,
2155 unavailable mechs specified in the exim configuration are still
2156 caught, and the auth.log warnings about OTP are gone."
2157
31619da6
PH
2158PH/25 When debugging is enabled, the contents of the command line are added
2159 to the debugging output, even when log_selector=+arguments is not
2160 specified.
2161
bebaf0fc
PH
2162PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2163 answer is "GNU", and only if the return is "GNU/something" is the answer
2164 "Linux".
2165
475fe28a
PH
2166PH/27 $acl_verify_message is now set immediately after the failure of a
2167 verification in an ACL, and so is available in subsequent modifiers. In
2168 particular, the message can be preserved by coding like this:
2169
2170 warn !verify = sender
2171 set acl_m0 = $acl_verify_message
2172
2173 Previously, $acl_verify_message was set only while expanding "message"
2174 and "log_message" when a very denied access.
2175
7e8bec7a
PH
2176PH/28 Modified OS/os.c-Linux with
2177
2178 -#ifndef OS_LOAD_AVERAGE
2179 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2180
2181 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2182 nomenclature these days.)
2183
e4a89c47
PH
2184PH/29 Installed patch from the Sieve maintainer that adds the options
2185 sieve_useraddress and sieve_subaddress to the redirect router.
2186
5ca2a9a1
PH
2187PH/30 In these circumstances:
2188 . Two addresses routed to the same list of hosts;
2189 . First host does not offer TLS;
2190 . First host accepts first address;
2191 . First host gives temporary error to second address;
2192 . Second host offers TLS and a TLS session is established;
2193 . Second host accepts second address.
2194 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2195 and peerdn, if requested) that were in fact used only for the second
2196 address.
7e8bec7a 2197
c688b954
PH
2198PH/31 When doing a callout as part of verifying an address, Exim was not paying
2199 attention to any local part prefix or suffix that was matched by the
2200 router that accepted the address. It now behaves in the same way as it
2201 does for delivery: the affixes are removed from the local part unless
2202 rcpt_include_affixes is set on the transport.
2203
fed77020
PH
2204PH/32 Add the sender address, as F=<...>, to the log line when logging a
2205 timeout during the DATA phase of an incoming message.
2206
7fe1560f
PH
2207PH/33 Sieve envelope tests were broken for match types other than :is. I have
2208 applied a patch sanctioned by the Sieve maintainer.
c688b954 2209
ebb6e6d5
PH
2210PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2211 the uid or gid is negative. A case of a negative gid caused this to be
2212 noticed. The fix allows for either to be negative.
2213
9c4e8f60
PH
2214PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2215 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2216 overlooked.
2217
2218PH/36 The change PH/12 above was broken. Fixed it.
2219
d7174846
PH
2220PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2221 the grounds that routing the same address twice would always produce the
2222 same answer. This might have been true once, but it is certainly no
2223 longer true now. Routing a child address may depend on the previous
2224 routing that produced that child. Some complicated redirection strategies
2225 went wrong when messages had multiple recipients, and made Exim's
2226 behaviour dependent on the order in which the addresses were given.
2227
2228 I have moved the duplicate checking until after the routing is complete.
2229 Exim scans the addresses that are assigned to local and remote
2230 transports, and removes any duplicates. This means that more work will be
2231 done, as duplicates will always all be routed, but duplicates are
2232 presumably rare, so I don't expect this is of any significance.
2233
2234 For deliveries to pipes, files, and autoreplies, the duplicate checking
2235 still happens during the routing process, since they are not going to be
2236 routed further.
2237
cfe75fc3
PH
2238PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2239 It corrects a timeout issue with spamd. This is Ian's comment: "The
2240 background is that sometimes spamd either never reads data from a
2241 connection it has accepted, or it never writes response data. The exiscan
2242 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2243 blindly assumes that writes won't block so it may never time out."
2244
be22d70e
PH
2245PH/39 Allow G after quota size as well as K and M.
2246
0612b098
PH
2247PH/40 The value set for $authenticated_id in an authenticator may not contain
2248 binary zeroes or newlines because the value is written to log lines and
2249 to spool files. There was no check on this. Now the value is run through
2250 the string_printing() function so that such characters are converted to
2251 printable escape sequences.
2252
2e0c1448
PH
2253PH/41 $message_linecount is a new variable that contains the total number of
2254 lines in the message. Compare $body_linecount, which is the count for the
2255 body only.
2256
447d236c
PH
2257PH/42 Exim no longer gives details of delivery errors for specific addresses in
2258 bounce and delay warning messages, except in certain special cases, which
2259 are as follows:
2260
2261 (a) An SMTP error message from a remote host;
2262 (b) A message specified in a :fail: redirection;
2263 (c) A message specified in a "fail" command in a system filter;
2264 (d) A message specified in a FAIL return from the queryprogram router;
2265 (e) A message specified by the cannot_route_message router option.
2266
2267 In these cases only, Exim does include the error details in bounce and
2268 warning messages. There are also a few cases where bland messages such
2269 as "unrouteable address" or "local delivery error" are given.
2270
d20976dc
PH
2271PH/43 $value is now also set for the "else" part of a ${run expansion.
2272
f656d135
PH
2273PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2274 being worked on, but at least Exim now implements the latest version to
2275 play with."
2276
2e2a30b4
PH
2277PH/45 In a pipe transport, although a timeout while waiting for the pipe
2278 process to complete was treated as a delivery failure, a timeout while
2279 writing the message to the pipe was logged, but erroneously treated as a
2280 successful delivery. Such timeouts include transport filter timeouts. For
2281 consistency with the overall process timeout, these timeouts are now
2282 treated as errors, giving rise to delivery failures by default. However,
2283 there is now a new Boolean option for the pipe transport called
2284 timeout_defer, which, if set TRUE, converts the failures into defers for
2285 both kinds of timeout. A transport filter timeout is now identified in
2286 the log output.
2287
9176e9f0
PH
2288PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2289 systems where "make" and "gmake" are different, calling "gmake" at top
2290 level broke things. I've arranged for the value of $(MAKE) to be passed
2291 from the Makefile to this script so that it can call the same version of
2292 "make".
2293
7982096b 2294
bbe902f0
PH
2295A note about Exim versions 4.44 and 4.50
2296----------------------------------------
2297
2298Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2299changes of various kinds. As a consequence, a big documentation update was
2300needed. This delayed the release for rather longer than seemed good, especially
2301in the light of a couple of (minor) security issues. Therefore, the changes
2302that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2303release. So 4.44 and 4.50 are in effect two different branches that both start
2304from 4.43.
2305
2306I have left the 4.50 change log unchanged; it contains all the changes since
23074.43. The change log for 4.44 is below; many of its items are identical to
2308those for 4.50. This seems to be the most sensible way to preserve the
2309historical information.
2310
2311
f7b63901 2312Exim version 4.50
495ae4b0
PH
2313-----------------
2314
5fe762f6
PH
2315 1. Minor wording change to the doc/README.SIEVE file.
2316
139059f6 2317 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2318 computation of the current number of files was incorrect.
495ae4b0 2319
7086e875
PH
2320 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2321 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2322 place.
2323
35af9f61
PH
2324 4. Give more explanation in the error message when the command for a transport
2325 filter fails to execute.
2326
b668c215
PH
2327 5. There are several places where Exim runs a non-Exim command in a
2328 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2329 was being done only for the command run by the queryprogram router. It is
2330 now done for all such subprocesses. The other cases are: ${run, transport
2331 filters, and the commands run by the lmtp and pipe transports.
2332
a494b1e1
PH
2333 6. Added CONFIGURE_GROUP build-time option.
2334
2335 7. Some older OS have a limit of 256 on the maximum number of file
2336 descriptors. Exim was using setrlimit() to set 1000 as a large value
2337 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2338 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2339
c5fcb476
PH
2340 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2341 was an oversight, and furthermore, ever since the addition of extra
2342 controls (e.g. 4.43/32), the checks on when to allow different forms of
2343 "control" were broken. There should now be diagnostics for all cases when a
2344 control that does not make sense is encountered.
2345
69358f02
PH
2346 9. Added the /retain_sender option to "control=submission".
2347
5be20824
PH
234810. $recipients is now available in the predata ACL (oversight).
2349
eb2c0248
PH
235011. Tidy the search cache before the fork to do a delivery from a message
2351 received from the command line. Otherwise the child will trigger a lookup
2352 failure and thereby defer the delivery if it tries to use (for example) a
2353 cached ldap connection that the parent has called unbind on.
2354
2a3eea10
PH
235512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2356 of $address_data from the recipient verification was clobbered by the
2357 sender verification.
2358
235913. The value of address_data from a sender verification is now available in
2360 $sender_address_data in subsequent conditions in the ACL statement.
2361
23c7ff99
PH
236214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2363
4deaf07d
PH
236415. Added a new option "connect=<time>" to callout options, to set a different
2365 connection timeout.
2366
926e1192
PH
236716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2368 was its contents. (It was OK if the option was not defined at all.)
2369
650edc6f
PH
237017. A "Completed" log line is now written for messages that are removed from
2371 the spool by the -Mrm option.
2372
2c7db3f5
PH
237318. New variables $sender_verify_failure and $recipient_verify_failure contain
2374 information about exactly what failed.
2375
3d235903
PH
237619. Added -dd to debug only the daemon process.
2377
7c7ad977
PH
237820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2379 handles timeouts, both on the server side and network timeouts. Renamed the
2380 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2381
981756db
PH
238221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2383 It is now set to "smtps".
2384
d4eb88df
PH
238522. $host_address is now set to the target address during the checking of
2386 ignore_target_hosts.
2387
238823. When checking ignore_target_hosts for an ipliteral router, no host name was
2389 being passed; this would have caused $sender_host_name to have been used if
2390 matching the list had actually called for a host name (not very likely,
2391 since this list is usually IP addresses). A host name is now passed as
2392 "[x.x.x.x]".
2393
7d468ab8
PH
239424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2395 code that specifies a non-restarting handler (typically sigaction() in
2396 modern systems) in an attempt to fix a rare and obscure crash bug.
2397
239825. Narrowed the window for a race in the daemon that could cause it to ignore
2399 SIGCHLD signals. This is not a major problem, because they are used only to
2400 wake it up if nothing else does.
2401
62c0818f
PH
240226. A malformed maildirsize file could cause Exim to calculate negative values
2403 for the mailbox size or file count. Odd effects could occur as a result.
2404 The maildirsize information is now recalculated if the size or filecount
2405 end up negative.
2406
26034054
PH
240727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2408 support for a long time. Removed HAVE_SYS_VFS_H.
2409
af66f652
PH
241028. Installed the latest version of exipick from John Jetmore.
2411
90af77f4
PH
241229. In an address list, if the pattern was not a regular expression, an empty
2413 subject address (from a bounce message) matched only if the pattern was an
2414 empty string. Non-empty patterns were not even tested. This was the wrong
2415 because it is perfectly reasonable to use an empty address as part of a
2416 database query. An empty address is now tested by patterns that are
2417 lookups. However, all the other forms of pattern expect the subject to
2418 contain a local part and a domain, and therefore, for them, an empty
2419 address still always fails if the pattern is not itself empty.
2420
d8ef3577
PH
242130. Exim went into a mad DNS loop when attempting to do a callout where the
2422 host was specified on an smtp transport, and looking it up yielded more
2423 than one IP address.
2424
5cb8cbc6
PH
242531. Re-factored the code for checking spool and log partition space into a
2426 function that finds that data and another that does the check. The former
2427 is then used to implement four new variables: $spool_space, $log_space,
2428 $spool_inodes, and $log_inodes.
2429
14702f5b
PH
243032. The RFC2047 encoding function was originally intended for short strings
2431 such as real names; it was not keeping to the 75-character limit for
2432 encoded words that the RFC imposes. It now respects the limit, and
2433 generates multiple encoded words if necessary. To be on the safe side, I
2434 have increased the buffer size for the ${rfc2047: expansion operator from
2435 1024 to 2048 bytes.
2436
063b1e99
PH
243733. It is now permitted to omit both strings after an "if" condition; if the
2438 condition is true, the result is "true". As before, when the second string
2439 is omitted, a false condition yields an empty string. This makes it less
2440 cumbersome to write custom ACL and router conditions.
2441
652e1b65
PH
244234. Failure to deliver a bounce message always caused it to be frozen, even if
2443 there was an errors_to setting on the router. The errors_to setting is now
2444 respected.
2445
6f0c9a4f
PH
244635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2447 canonical form (fully expanded) before being placed in
2448 $sender_host_address.
2449
33397d19
PH
245036. The table in the code that translates DNS record types into text (T_A to
2451 "A" for instance) was missing entries for NS and CNAME. It is just possible
2452 that this could have caused confusion if both these types were looked up
2453 for the same domain, because the text type is used as part of Exim's
2454 per-process caching. But the chance of anyone hitting this buglet seems
2455 very small.
2456
7bb56e1f
PH
245737. The dnsdb lookup has been extended in a number of ways.
2458
2459 (1) There is a new type, "zns", which walks up the domain tree until it
2460 finds some nameserver records. It should be used with care.
2461
ea3bc19b
PH
2462 (2) There is a new type, "mxh", which is like "mx" except that it returns
2463 just the host names, not the priorities.
2464
2465 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2466 looked up. The behaviour when one of the lookups defers can be
2467 controlled by a keyword.
7bb56e1f 2468
ea3bc19b 2469 (4) It is now possible to specify the separator character for use when
7bb56e1f 2470 multiple records are returned.
33397d19 2471
0bcb2a0e
PH
247238. The dnslists ACL condition has been extended: it is now possible to supply
2473 a list of IP addresses and/or domains to be looked up in a particular DNS
2474 domain.
2475
2ac0e484
PH
247639. Added log_selector=+queue_time_overall.
2477
4e1fde53
PH
247840. When running the queue in the test harness, wait just a tad after forking a
2479 delivery process, to get repeatability of debugging output.
2480
de365ded
PH
248141. Include certificate and key file names in error message when GnuTLS fails
2482 to set them up, because the GnuTLS error message doesn't include the name
2483 of the failing file when there is a problem reading it.
2484
f05da2e8
PH
248542. Allow both -bf and -bF in the same test run.
2486
d6453af2
PH
248743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2488
f7b63901
PH
248944. The "Exiscan patch" is now merged into the mainline Exim source.
2490
249145. Sometimes the final signoff response after QUIT could fail to get
2492 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2493 < 0 before doing a fflush(). This bug looks as though it goes back to the
2494 introduction of TLS in release 3.20, but "sometimes" must have been rare
2495 because the tests only now provoked it.
2496
a444213a
PH
249746. Reset the locale to "C" after calling embedded Perl, in case it was changed
2498 (this can affect the format of dates).
2499
0ec020ea
PH
250047. exim_tidydb, when checking for the continued existence of a message for
2501 which it has found a message-specific retry record, was not finding
2502 messages that were in split spool directories. Consequently, it was
2503 deleting retry records that should have stayed in existence.
2504
b1206957
PH
250548. Steve fixed some bugs in eximstats.
2506
250749. The SPA authentication driver was not abandoning authentication and moving
2508 on to the next authenticator when an expansion was forced to fail,
2509 contradicting the general specification for all authenticators. Instead it
2510 was generating a temporary error. It now behaves as specified.
2511
26dd5a95
PH
251250. The default ordering of permitted cipher suites for GnuTLS was pessimal
2513 (the order specifies the preference for clients). The order is now AES256,
2514 AES128, 3DES, ARCFOUR128.
2515
343b2385
PH
251651. Small patch to Sieve code - explicitly set From: when generating an
2517 autoreply.
2518
1c5466b9
PH
251952. Exim crashed if a remote delivery caused a very long error message to be
2520 recorded - for instance if somebody sent an entire SpamAssassin report back
2521 as a large number of 550 error lines. This bug was coincidentally fixed by
2522 increasing the size of one of Exim's internal buffers (big_buffer) that
2523 happened as part of the Exiscan merge. However, to be on the safe side, I
2524 have made the code more robust (and fixed the comments that describe what
2525 is going on).
2526
55ee9ee3
PH
252753. Now that there can be additional text after "Completed" in log lines (if
2528 the queue_time_overall log selector is set), a one-byte patch to exigrep
2529 was needed to allow it to recognize "Completed" as not the last thing in
2530 the line.
2531
d38f8232
PH
253254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2533 patch that reportedly fixes this has been added. I am not expert enough to
2534 create a test for it. This is what the patch creator wrote:
2535
2536 "I found a little strange behaviour of ldap code when working with
2537 Windows 2003 AD Domain, where users was placed in more than one
2538 Organization Units. When I tried to give exim partial DN, the exit code
2539 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2540 But simultaneously result of request was absolutely normal ldap result,
2541 so I produce this patch..."
2542
3295e65b
PH
2543 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2544 REFERENCE, so I have modified the code to exclude the patch when that macro
2545 is not defined.
2546
7102e136
PH
254755. Some experimental protocols are using DNS PTR records for new purposes. The
2548 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2549 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2550 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2551 CAN-2005-0021
7102e136 2552
3ca0ba97
PH
255356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2554
c2bcbe20
PH
255557. Double the size of the debug message buffer (to 2048) so that more of very
2556 long debug lines gets shown.
2557
18ce445d
PH
255858. The exicyclog utility now does better if the number of log files to keep
2559 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2560
1f5b4c3d
PH
256159. Two changes related to the smtp_active_hostname option:
2562
2563 (1) $smtp_active_hostname is now available as a variable.
2564 (2) The default for smtp_banner uses $smtp_active_hostname instead
2565 of $primary_hostname.
2566
b975ba52
PH
256760. The host_aton() function is supposed to be passed a string that is known
2568 to be a valid IP address. However, in the case of IPv6 addresses, it was
2569 not checking this. This is a hostage to fortune. Exim now panics and dies
2570 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2571 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2572 components; fortuitously, this particular loophole had already been fixed
2573 by change 4.50/55 above.
2574
2575 If there are any other similar loopholes, the new check in host_aton()
2576 itself should stop them being exploited. The report I received stated that
2577 data on the command line could provoke the exploit when Exim was running as
2578 exim, but did not say which command line option was involved. All I could
2579 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2580 running as the user.
ea3a6f44 2581 CAN-2005-0021
85b87bc2
PH
2582
258361. There was a buffer overflow vulnerability in the SPA authentication code
2584 (which came originally from the Samba project). I have added a test to the
2585 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2586 CAN-2005-0022
b975ba52 2587
17ffcae7
PH
258862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2589 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2590
d95f9fdb
PH
259163. The daemon start-up calls getloadavg() while still root for those OS that
2592 need the first call to be done as root, but it missed one case: when
2593 deliver_queue_load_max is set with deliver_drop_privilege. This is
2594 necessary for the benefit of the queue runner, because there is no re-exec
2595 when deliver_drop_privilege is set.
2596
86b8287f
PH
259764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2598 This has been fixed.
2599
60dc5e56
PH
260065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2601 was in use, was not putting the data itself into the right store pool;
2602 consequently, it could be overwritten for a subsequent message in the same
2603 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2604 the caching.)
2605
533244af
PH
260666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2607
a5a28604
PH
260867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2609 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2610 the function were treating the return as a boolean value, which happened to
2611 work because 0=false and not-0=true, but is not correct code.
2612
7e634d24
PH
261368. The host_aton() function was not handling scoped IPv6 addresses (those
2614 with, for example, "%eth0" on the end) correctly.
2615
3e11c26b
PH
261669. Fixed some compiler warnings in acl.c for the bitmaps specified with
2617 negated items (that is, ~something) in unsigned ints. Some compilers
2618 apparently mutter when there is no cast.
2619
6729cf78
PH
262070. If an address verification called from an ACL failed, and did not produce a
2621 user-specific message (i.e. there was only a "system" message), nothing was
2622 put in $acl_verify_message. In this situation, it now puts the system
2623 message there.
2624
00f00ca5
PH
262571. Change 4.23/11 added synchronization checking at the start of an SMTP
2626 session; change 4.31/43 added the unwanted input to the log line - except
2627 that it did not do this in the start of session case. It now does.
2628
c9bdd01c
PH
262972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2630 This is wrong and can cause the other end to generate a synchronization
2631 error if it is another Exim or anything else that does the synchronization
2632 check. A QUIT command is no longer sent after a timeout.
2633
d43194df
PH
263473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2635 during host lookups.
2636
fe5b5d0b
PH
263774. The defer_ok option of callout verification was not working if it was used
2638 when verifying addresses in header lines, that is, for this case:
2639
2640 verify = header_sender/callout=defer_ok
2641
76a2d7ba
PH
264275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2643 those file descriptors could be used for SMTP connections. If anything
2644 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2645 could be sent to the SMTP client, causing chaos. The daemon now opens
2646 stdin, stdout, and stderr to /dev/null when it puts itself into the
2647 background.
2648
264976. Arrange for output from Perl's "warn" command to be written to Exim's main
2650 log by default. The user can override this with suitable Perl magic.
2651
04f7d5b9
PH
265277. The use of log_message on a "discard" ACL verb, which is supposed to add to
2653 the log message when discard triggers, was not working for the DATA ACL or
2654 for the non-SMTP ACL.
2655
bc60667e
PH
265678. Error message wording change in sieve.c.
2657
bb6e88ff
PH
265879. If smtp_accept_max_per_host was set, the number of connections could be
2659 restricted to fewer than expected, because the daemon was trying to set up
2660 a new connection before checking whether the processes handling previous
2661 connections had finished. The check for completed processes is now done
2662 earlier. On busy systems, this bug wouldn't be noticed because something
2663 else would have woken the daemon, and it would have reaped the completed
2664 process earlier.
2665
1e70f85b
PH
266680. If a message was submitted locally by a user whose login name contained one
2667 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2668 It caused a spool format error. I have fixed the spool reading code. A
2669 related problem was that the "from" clause in the Received: line became
2670 illegal because of the space(s). It is now covered by ${quote_local_part.
2671
267281. Included the latest eximstats from Steve (adds average sizes to HTML Top
2673 tables).
2674
4e01f9d6
PH
267582. Updated OS/Makefile-AIX as per message from Mike Meredith.
2676
1ee1cef2
PH
267783. Patch from Sieve maintainer to fix unterminated string problem in
2678 "vacation" handling.
2679
6e2b4ccc
PH
268084. Some minor changes to the Linux configuration files to help with other
2681 OS variants using glibc.
2682
8e669ac1
PH
268385. One more patch for Sieve to update vacation handling to latest spec.
2684
495ae4b0 2685
bbe902f0
PH
2686----------------------------------------------------
2687See the note above about the 4.44 and 4.50 releases.
2688----------------------------------------------------
2689
2690
2691Exim version 4.44
2692-----------------
2693
2694 1. Change 4.43/35 introduced a bug that caused file counts to be
2695 incorrectly computed when quota_filecount was set in an appendfile
2696 transport
2697
2698 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2699 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2700 place.
2701
2702 3. Give more explanation in the error message when the command for a transport
2703 filter fails to execute.
2704
2705 4. There are several places where Exim runs a non-Exim command in a
2706 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2707 was being done only for the command run by the queryprogram router. It is
2708 now done for all such subprocesses. The other cases are: ${run, transport
2709 filters, and the commands run by the lmtp and pipe transports.
2710
2711 5. Some older OS have a limit of 256 on the maximum number of file
2712 descriptors. Exim was using setrlimit() to set 1000 as a large value
2713 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2714 systems. I've change it so that if it can't get 1000, it tries for 256.
2715
2716 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2717 was an oversight, and furthermore, ever since the addition of extra
2718 controls (e.g. 4.43/32), the checks on when to allow different forms of
2719 "control" were broken. There should now be diagnostics for all cases when a
2720 control that does not make sense is encountered.
2721
2722 7. $recipients is now available in the predata ACL (oversight).
2723
2724 8. Tidy the search cache before the fork to do a delivery from a message
2725 received from the command line. Otherwise the child will trigger a lookup
2726 failure and thereby defer the delivery if it tries to use (for example) a
2727 cached ldap connection that the parent has called unbind on.
2728
2729 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2730 of $address_data from the recipient verification was clobbered by the
2731 sender verification.
2732
273310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2734 was its contents. (It was OK if the option was not defined at all.)
2735
273611. A "Completed" log line is now written for messages that are removed from
2737 the spool by the -Mrm option.
2738
273912. $host_address is now set to the target address during the checking of
2740 ignore_target_hosts.
2741
274213. When checking ignore_target_hosts for an ipliteral router, no host name was
2743 being passed; this would have caused $sender_host_name to have been used if
2744 matching the list had actually called for a host name (not very likely,
2745 since this list is usually IP addresses). A host name is now passed as
2746 "[x.x.x.x]".
2747
274814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2749 code that specifies a non-restarting handler (typically sigaction() in
2750 modern systems) in an attempt to fix a rare and obscure crash bug.
2751
275215. Narrowed the window for a race in the daemon that could cause it to ignore
2753 SIGCHLD signals. This is not a major problem, because they are used only to
2754 wake it up if nothing else does.
2755
275616. A malformed maildirsize file could cause Exim to calculate negative values
2757 for the mailbox size or file count. Odd effects could occur as a result.
2758 The maildirsize information is now recalculated if the size or filecount
2759 end up negative.
2760
276117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2762 support for a long time. Removed HAVE_SYS_VFS_H.
2763
ea3a6f44 276418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2765
276619. Allow an empty sender to be matched against a lookup in an address list.
2767 Previously the only cases considered were a regular expression, or an
2768 empty pattern.
2769
277020. Exim went into a mad DNS lookup loop when doing a callout where the
2771 host was specified on the transport, if the DNS lookup yielded more than
2772 one IP address.
2773
ea3a6f44
NM
277421. The RFC2047 encoding function was originally intended for short strings
2775 such as real names; it was not keeping to the 75-character limit for
2776 encoded words that the RFC imposes. It now respects the limit, and
2777 generates multiple encoded words if necessary. To be on the safe side, I
2778 have increased the buffer size for the ${rfc2047: expansion operator from
2779 1024 to 2048 bytes.
bbe902f0 2780
ea3a6f44
NM
278122. Failure to deliver a bounce message always caused it to be frozen, even if
2782 there was an errors_to setting on the router. The errors_to setting is now
2783 respected.
bbe902f0
PH
2784
278523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2786 canonical form (fully expanded) before being placed in
2787 $sender_host_address.
2788
278924. Updated eximstats to version 1.33
2790
ea3a6f44
NM
279125. Include certificate and key file names in error message when GnuTLS fails
2792 to set them up, because the GnuTLS error message doesn't include the name
2793 of the failing file when there is a problem reading it.
bbe902f0
PH
2794
279526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2796 As per change 25.
bbe902f0 2797
ea3a6f44
NM
279827. Reset the locale to "C" after calling embedded Perl, in case it was changed
2799 (this can affect the format of dates).
bbe902f0 2800
ea3a6f44
NM
280128. exim_tidydb, when checking for the continued existence of a message for
2802 which it has found a message-specific retry record, was not finding
2803 messages that were in split spool directories. Consequently, it was
2804 deleting retry records that should have stayed in existence.
bbe902f0
PH
2805
280629. eximstats updated to version 1.35
2807 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2808 1.35 - bugfix such that pie charts by volume are generated correctly
2809
ea3a6f44
NM
281030. The SPA authentication driver was not abandoning authentication and moving
2811 on to the next authenticator when an expansion was forced to fail,
2812 contradicting the general specification for all authenticators. Instead it
2813 was generating a temporary error. It now behaves as specified.
bbe902f0 2814
ea3a6f44
NM
281531. The default ordering of permitted cipher suites for GnuTLS was pessimal
2816 (the order specifies the preference for clients). The order is now AES256,
2817 AES128, 3DES, ARCFOUR128.
bbe902f0 2818
ea3a6f44
NM
281931. Small patch to Sieve code - explicitly set From: when generating an
2820 autoreply.
bbe902f0 2821
ea3a6f44
NM
282232. Exim crashed if a remote delivery caused a very long error message to be
2823 recorded - for instance if somebody sent an entire SpamAssassin report back
2824 as a large number of 550 error lines. This bug was coincidentally fixed by
2825 increasing the size of one of Exim's internal buffers (big_buffer) that
2826 happened as part of the Exiscan merge. However, to be on the safe side, I
2827 have made the code more robust (and fixed the comments that describe what
2828 is going on).
bbe902f0 2829
ea3a6f44
NM
283033. Some experimental protocols are using DNS PTR records for new purposes. The
2831 keys for these records are domain names, not reversed IP addresses. The
2832 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2833 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2834 CAN-2005-0021
2835
ea3a6f44
NM
283634. The host_aton() function is supposed to be passed a string that is known
2837 to be a valid IP address. However, in the case of IPv6 addresses, it was
2838 not checking this. This is a hostage to fortune. Exim now panics and dies
2839 if the condition is not met. A case was found where this could be provoked
2840 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2841 components; fortuitously, this particular loophole had already been fixed
2842 by change 4.50/55 or 4.44/33 above.
2843
2844 If there are any other similar loopholes, the new check in host_aton()
2845 itself should stop them being exploited. The report I received stated that
2846 data on the command line could provoke the exploit when Exim was running as
2847 exim, but did not say which command line option was involved. All I could
2848 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2849 running as the user.
bbe902f0
PH
2850 CAN-2005-0021
2851
ea3a6f44
NM
285235. There was a buffer overflow vulnerability in the SPA authentication code
2853 (which came originally from the Samba project). I have added a test to the
2854 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2855 CAN-2005-0022
2856
ea3a6f44
NM
285736. The daemon start-up calls getloadavg() while still root for those OS that
2858 need the first call to be done as root, but it missed one case: when
2859 deliver_queue_load_max is set with deliver_drop_privilege. This is
2860 necessary for the benefit of the queue runner, because there is no re-exec
2861 when deliver_drop_privilege is set.
bbe902f0 2862
ea3a6f44
NM
286337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2864 was in use, was not putting the data itself into the right store pool;
2865 consequently, it could be overwritten for a subsequent message in the same
2866 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2867 the caching.)
bbe902f0 2868
ea3a6f44
NM
286938. Sometimes the final signoff response after QUIT could fail to get
2870 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2871 < 0 before doing a fflush(). This bug looks as though it goes back to the
2872 introduction of TLS in release 3.20, but "sometimes" must have been rare
2873 because the tests only now provoked it.
bbe902f0
PH
2874
2875
495ae4b0
PH
2876Exim version 4.43
2877-----------------
2878
2879 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2880 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2881 Now it returns an integer. A number of calls were still expecting a T/F
2882 return. Fortuitously, in all cases, the tests worked in OK situations,
2883 which is the norm. However, things would have gone wrong on any write
2884 failures on the smtp file descriptor. This function is used when sending
2885 messages over SMTP and also when doing verify callouts.
2886
2887 2. When Exim is called to do synchronous delivery of a locally submitted
2888 message (the -odf or -odi options), it no longer closes stderr before doing
2889 the delivery.
2890
2891 3. Implemented the mua_wrapper option.
2892
2893 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2894
2895 5. Implemented the functions header_remove(), header_testname(),
2896 header_add_at_position(), and receive_remove_recipient(), and exported them
2897 to local_scan().
2898
2899 6. If an ACL "warn" statement specified the addition of headers, Exim already
2900 inserted X-ACL-Warn: at the start if there was no header name. However, it
2901 was not making this test for the second and subsequent header lines if
2902 there were newlines in the string. This meant that an invalid header could
2903 be inserted if Exim was badly configured.
2904
2905 7. Allow an ACL "warn" statement to add header lines at the start or after all
2906 the Received: headers, as well as at the end.
2907
2908 8. Added the rcpt_4xx retry error code.
2909
2910 9. Added postmaster_mailfrom=xxx to callout verification option.
2911
291210. Added mailfrom=xxxx to the callout verification option, for verify=
2913 header_sender only.
2914
291511. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2916 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2917
291812. Inserted some casts to stop certain compilers warning when using pointer
2919 differences as field lengths or precisions in printf-type calls (mostly
2920 affecting debugging statements).
2921
292213. Added optional readline() support for -be (dynamically loaded).
2923
292414. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2925 same clock tick as a message's arrival, so that its received time was the
2926 same as the "first fail" time on the retry record, and that message
2927 remained on the queue past the ultimate address timeout, every queue runner
2928 would try a delivery (because it was past the ultimate address timeout) but
2929 after another failure, the ultimate address timeout, which should have then
2930 bounced the address, did not kick in. This was a "< instead of <=" error;
2931 in most cases the first failure would have been in the next clock tick
2932 after the received time, and all would be well.
2933
293415. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2935 being recognized when the domain list was tested by the match_domain
2936 condition in an expansion string.
2937
293816. Added the ${str2b64: operator.
2939
294017. Exim was always calling setrlimit() to set a large limit for the number of
2941 processes, without checking whether the existing limit was already
2942 adequate. (It did check for the limit on file descriptors.) Furthermore,
2943 errors from getrlimit() and setrlimit() were being ignored. Now they are
2944 logged to the main and panic logs, but Exim does carry on, to try to do its
2945 job under whatever limits there are.
2946
294718. Imported PCRE 5.0.
2948
294919. Trivial typo in log message " temporarily refused connection" (the leading
2950 space).
2951
295220. If the log selector return_path_on_delivery was set and an address was
2953 redirected to /dev/null, the delivery process crashed because it assumed
2954 that a return path would always be set for a "successful" delivery. In this
2955 case, the whole delivery is bypassed as an optimization, and therefore no
2956 return path is set.
2957
295821. Internal re-arrangement: the function for sending a challenge and reading
2959 a response while authentication was assuming a zero-terminated challenge
2960 string. It's now changed to take a pointer and a length, to allow for
2961 binary data in such strings.
2962
296322. Added the cyrus_sasl authenticator (code supplied by MBM).
2964
296523. Exim was not respecting finduser_retries when seeking the login of the
2966 uid under which it was called; it was always trying 10 times. (The default
2967 setting of finduser_retries is zero.) Also, it was sleeping after the final
2968 failure, which is pointless.
2969
297024. Implemented tls_on_connect_ports.
2971
297225. Implemented acl_smtp_predata.
2973
297426. If the domain in control=submission is set empty, Exim assumes that the
2975 authenticated id is a complete email address when it generates From: or
2976 Sender: header lines.
2977
297827. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2979 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2980 chown and chgrp in /bin and hostname in /usr/bin.
2981
298228. Exim was keeping the "process log" file open after each use, just as it
2983 does for the main log. This opens the possibility of it remaining open for
2984 long periods when the USR1 signal hits a daemon. Occasional processlog
2985 errors were reported, that could have been caused by this. Anyway, it seems
2986 much more sensible not to leave this file open at all, so that is what now
2987 happens.
2988
298929. The long-running daemon process does not normally write to the log once it
2990 has entered its main loop, and it closes the log before doing so. This is
2991 so that log files can straightforwardly be renamed and moved. However,
2992 there are a couple of unusual error situations where the daemon does write
2993 log entries, and I had neglected to close the log afterwards.
2994
299530. The text of an SMTP error response that was received during a remote
2996 delivery was being truncated at 512 bytes. This is too short for some of
2997 the long messages that one sometimes sees. I've increased the limit to
2998 1024.
2999
300031. It is now possible to make retry rules that apply only when a message has a
3001 specific sender, in particular, an empty sender.
3002
300332. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3004 it possible to be selective about when SMTP synchronization is enforced.
3005
300633. Added "control = caseful_local_part" and "control = "caselower_local_part".
3007
300832. Implemented hosts_connection_nolog.
3009
301033. Added an ACL for QUIT.
3011
301234. Setting "delay_warning=" to disable warnings was not working; it gave a
3013 syntax error.
3014
301535. Added mailbox_size and mailbox_filecount to appendfile.
3016
301736. Added control = no_multiline_responses to ACLs.
3018
301937. There was a bug in the logic of the code that waits for the clock to tick
3020 in the case where the clock went backwards by a substantial amount such
3021 that the microsecond fraction of "now" was more than the microsecond
3022 fraction of "then" (but the whole seconds number was less).
3023
302438. Added support for the libradius Radius client library this is found on
3025 FreeBSD (previously only the radiusclient library was supported).
3026
3027
3028Exim version 4.42
3029-----------------
3030
3031 1. When certain lookups returned multiple values in the form name=value, the
3032 quoting of the values was not always being done properly. Specifically:
3033 (a) If the value started with a double quote, but contained no whitespace,
3034 it was not quoted.
3035 (b) If the value contained whitespace other than a space character (i.e.
3036 tabs or newlines or carriage returns) it was not quoted.
3037 This fix has been applied to the mysql and pgsql lookups by writing a
3038 separate quoting function and calling it from the lookup code. The fix
3039 should probably also be applied to nisplus, ibase and oracle lookups, but
3040 since I cannot test any of those, I have not disturbed their existing code.
3041
3042 2. A hit in the callout cache for a specific address caused a log line with no
3043 reason for rejecting RCPT. Now it says "Previous (cached) callout
3044 verification failure".
3045
3046 3. There was an off-by-one bug in the queryprogram router. An over-long
3047 return line was truncated at 256 instead of 255 characters, thereby
3048 overflowing its buffer with the terminating zero. As well as fixing this, I
3049 have increased the buffer size to 1024 (and made a note to document this).
3050
3051 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3052 when Exim is waiting for an SMTP response from a remote server, Exim
3053 restarts its select() call on the socket, thereby resetting its timeout.
3054 This is not a problem when such interrupts are rare. Somebody set up a cron
3055 job to run exiwhat every 2 minutes, which is less than the normal select()
3056 timeout (5 or 10 minutes). This meant that the select() timeout never
3057 kicked in because it was always reset. I have fixed this by comparing the
3058 time when an interrupt arrives with the time at the start of the first call
3059 to select(). If more time than the timeout has elapsed, the interrupt is
3060 treated as a timeout.
3061
3062 5. Some internal re-factoring in preparation for the addition of Sieve
3063 extensions (by MH). In particular, the "personal" test is moved to a
3064 separate function, and given an option for scanning Cc: and Bcc: (which is
3065 not set for Exim filters).
3066
3067 6. When Exim created an email address using the login of the caller as the
3068 local part (e.g. when creating a From: or Sender: header line), it was not
3069 quoting the local part when it contained special characters such as @.
3070
3071 7. Installed new OpenBSD configuration files.
3072
3073 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3074 try to make them clearer.
3075
3076 9. Callout options, other than the timeout value, were being ignored when
3077 verifying sender addresses in header lines. For example, when using
3078
3079 verify = header_sender/callout=no_cache
3080
3081 the cache was (incorrectly) being used.
3082
308310. Added a missing instance of ${EXE} to the exim_install script; this affects
3084 only the Cygwin environment.
3085
308611. When return_path_on_delivery was set as a log selector, if different remote
3087 addresses in the same message used different return paths and parallel
3088 remote delivery occurred, the wrong values would sometimes be logged.
3089 (Whenever a remote delivery process finished, the return path value from
3090 the most recently started remote delivery process was logged.)
3091
309212. RFC 3848 specifies standard names for the "with" phrase in Received: header
3093 lines when AUTH and/or TLS are in use. This is the "received protocol"
3094 field. Exim used to use "asmtp" for authenticated SMTP, without any
3095 indication (in the protocol name) for TLS use. Now it follows the RFC and
3096 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3097 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3098 names appear in log lines as well as in Received: header lines.
3099
310013. Installed MH's patches for Sieve to add the "copy" and "vacation"
3101 extensions, and comparison tests, and to fix some bugs.
3102
310314. Changes to the "personal" filter test:
3104
3105 (1) The test was buggy in that it was just doing the equivalent of
3106 "contains" tests on header lines. For example, if a user's address was
3107 anne@some.where, the "personal" test would incorrectly be true for
3108
3109 To: susanne@some.where
3110
3111 This test is now done by extracting each address from the header in turn,
3112 and checking the entire address. Other tests that are part of "personal"
3113 are now done using regular expressions (for example, to check local parts
3114 of addresses in From: header lines).
3115
3116 (2) The list of non-personal local parts in From: addresses has been
3117 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3118 taken from the Sieve specification recommendations.
3119
3120 (3) If the message contains any header line starting with "List-" it is
3121 treated as non-personal.
3122
3123 (4) The test for "circular" in the Subject: header line has been removed
3124 because it now seems ill-conceived.
3125
312615. Minor typos in src/EDITME comments corrected.
3127
312816. Installed latest exipick from John Jetmore.
3129
313017. If headers_add on a router specified a text string that was too long for
3131 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3132 of string_sprintf() is now avoided.
3133
313418. $message_body_size was not set (it was always zero) when running the DATA
3135 ACL and the local_scan() function.
3136
313719. For the "mail" command in an Exim filter, no default was being set for
3138 the once_repeat time, causing a random time value to be used if "once" was
3139 specified. (If the value happened to be <= 0, no repeat happened.) The
3140 default is now 0s, meaning "never repeat". The "vacation" command was OK
3141 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3142 (I found it when inspecting the code).
3143
314420. There is now an overall timeout for performing a callout verification. It
3145 defaults to 4 times the callout timeout, which applies to individual SMTP
3146 commands during the callout. The overall timeout applies when there is more
3147 than one host that can be tried. The timeout is checked before trying the
3148 next host. This prevents very long delays if there are a large number of
3149 hosts and all are timing out (e.g. when the network connections are timing
3150 out). The value of the overall timeout can be changed by specifying an
3151 additional sub-option for "callout", called "maxwait". For example:
3152
3153 verify = sender/callout=5s,maxwait=20s
3154
315521. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3156 to the end before writing, but this should make it even safer).
3157
315822. Exim was forgetting that it had advertised PIPELINING for the second and
3159 subsequent messages on an SMTP connection. It was also not resetting its
3160 memory on STARTTLS and an internal HELO.
3161
316223. When Exim logs an SMTP synchronization error within a session, it now
3163 records whether PIPELINING has been advertised or not.
3164
316524. Added 3 instances of "(long int)" casts to time_t variables that were being
3166 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3167 rather than long int.
3168
316925. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3170
317126. Added the never_mail option to autoreply.
3172
3173
3174Exim version 4.41
3175-----------------
3176
3177 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3178 crash if the getsockname() call failed; this can happen if a connection is
3179 closed very soon after it is established. The problem was simply in the
3180 order in which certain operations were done, causing Exim to try to write
3181 to the SMTP stream before it had set up the file descriptor. The bug has
3182 been fixed by making things happen in the correct order.
3183
3184
3185Exim version 4.40
3186-----------------
3187
3188 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3189 before the connection was closed, thus losing the rejection response.
3190
3191 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3192 some early Solaris releases, but causes trouble in current releases where
3193 socklen_t is defined.
3194
3195 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3196 always exist.
3197
3198 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3199 configured.
3200
3201 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3202 that releasing the top of it at the end releases what was used for sub-
3203 expansions (unless the block got too big). However, discard this block if
3204 the first thing is a variable or header, so that we can use its block when
3205 it is dynamic (useful for very large $message_headers, for example).
3206
3207 6. Lookups now cache *every* query, not just the most recent. A new, separate
3208 store pool is used for this. It can be recovered when all lookup caches are
3209 flushed. Lookups now release memory at the end of their result strings.
3210 This has involved some general refactoring of the lookup sources.
3211
3212 7. Some code has been added to the store_xxx() functions to reduce the amount
3213 of flapping under certain conditions.
3214
3215 8. log_incoming_interface used to affect only the <= reception log lines. Now
3216 it causes the local interface and port to be added to several more SMTP log
3217 lines, for example "SMTP connection from", and rejection lines.
3218
3219 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3220
322110. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3222
322311. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3224 could be overwritten at the end of the current message (or the start of a
3225 new message if it was set in a HELO ACL). The value is now preserved for
3226 the duration of the SMTP connection.
3227
322812. If a transport had a headers_rewrite setting, and a matching header line
3229 contained an unqualified address, that address was qualified, even if it
3230 did not match any rewriting rules. The underlying bug was that the values
3231 of the flags that permit the existence of unqualified sender and recipient
3232 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3233 non-local messages, and by -bnq for local messages) were not being
3234 preserved with the message after it was received.
3235
323613. When Exim was logging an SMTP synchronization error, it could sometimes log
3237 "next input=" as part of the text comprising the host identity instead of
3238 the correct text. The code was using the same buffer for two different
3239 strings. However, depending on which order the printing function evaluated
3240 its arguments, the bug did not always show up. Under Linux, for example, my
3241 test suite worked just fine.
3242
324314. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3244 doesn't work with some older versions of Perl. It has been changed to "my",
3245 which in any case is probably the better facility to use.
3246
324715. A really picky compiler found some instances of statements for creating
3248 error messages that either had too many or two few arguments for the format
3249 string.
3250
325116. The size of the buffer for calls to the DNS resolver has been increased
3252 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3253 for addresses that have a lot of PTR records. This alleviates a problem; it
3254 does not fully solve it.
3255
325617. A dnsdb lookup for PTR records that receives more data than will fit in the
3257 buffer now truncates the list and logs the incident, which is the same
3258 action as happens when Exim is looking up a host name and its aliases.
3259 Previously in this situation something unpredictable would happen;
3260 sometimes it was "internal error: store_reset failed".
3261
326218. If a server dropped the connection unexpectedly when an Exim client was
3263 using GnuTLS and trying to read a response, the client delivery process
3264 crashed while trying to generate an error log message.
3265
326619. If a "warn" verb in an ACL added multiple headers to a message in a single
3267 string, for example:
3268
3269 warn message = H1: something\nH2: something
3270
3271 the text was added as a single header line from Exim's point of view
3272 though it ended up OK in the delivered message. However, searching for the
3273 second and subsequent header lines using $h_h2: did not work. This has been
3274 fixed. Similarly, if a system filter added multiple headers in this way,
3275 the routers could not see them.
3276
327720. Expanded the error message when iplsearch is called with an invalid key to
3278 suggest using net-iplsearch in a host list.
3279
328021. When running tests using -bh, any delays imposed by "delay" modifiers in
3281 ACLs are no longer actually imposed (and a message to that effect is
3282 output).
3283
328422. If a "gecos" field in a passwd entry contained escaped characters, in
3285 particular, if it contained a \" sequence, Exim got it wrong when building
3286 a From: or a Sender: header from that name. A second bug also caused
3287 incorrect handling when an unquoted " was present following a character
3288 that needed quoting.
3289
329023. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3291 was not being matched caselessly.
3292
329324. Arranged for all hyphens in the exim.8 source to be escaped with
3294 backslashes.
3295
329625. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3297 properly. Recipient callout cache records were still being keyed to include
3298 the sender, even when use_sender was set false. This led to far more
3299 callouts that were necessary. The sender is no longer included in the key
3300 when use_sender is false.
3301
330226. Added "control = submission" modifier to ACLs.
3303
330427. Added the ${base62d: operator to decode base 62 numbers.
3305
330628. dnsdb lookups can now access SRV records.
3307
330829. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3309 the configuration file.
3310
331130. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3312 (-v) mode. This makes the output for a verbose queue run more intelligible.
3313
331431. Added a use_postmaster feature to recipient callouts.
3315
331632. Added the $body_zerocount variable, containing the number of binary zero
3317 bytes in the message body.
3318
331933. The time of last modification of the "new" subdirectory is now used as the
3320 "mailbox time last read" when there is a quota error for a maildir
3321 delivery.
3322
332334. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3324
332535. Added +ignore_unknown as a special item in host lists.
3326
332736. Code for decoding IPv6 addresses in host lists is now included, even if
3328 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3329 address was recognized as an IP address, but was then not correctly decoded
3330 into binary, causing unexpected and incorrect effects when compared with
3331 another IP address.
3332
3333
3334Exim version 4.34
3335-----------------
3336
3337 1. Very minor rewording of debugging text in manualroute to say "list of
3338 hosts" instead of "hostlist".
3339
3340 2. If verify=header_syntax was set, and a header line with an unqualified
3341 address (no domain) and a large number of spaces between the end of the
3342 name and the colon was received, the reception process suffered a buffer
3343 overflow, and (when I tested it) crashed. This was caused by some obsolete
3344 code that should have been removed. The fix is to remove it!
3345
3346 3. When running in the test harness, delay a bit after writing a bounce
3347 message to get a bit more predictability in the log output.
3348
3349 4. Added a call to search_tidyup() just before forking a reception process. In
3350 theory, someone could use a lookup in the expansion of smtp_accept_max_
3351 per_host which, without the tidyup, could leave open a database connection.
3352
3353 5. Added the variables $recipient_data and $sender_data which get set from a
3354 lookup success in an ACL "recipients" or "senders" condition, or a router
3355 "senders" option, similar to $domain_data and $local_part_data.
3356
3357 6. Moved the writing of debug_print from before to after the "senders" test
3358 for routers.
3359
3360 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3361 problems for message scanning, either using a data ACL, or using
3362 local_scan() because the Received: header was not generated till after they
3363 were called (in order to set the time as the time of reception completion).
3364 I have revised the way this works. The header is now generated after the
3365 body is received, but before the ACL or local_scan() are called. After they
3366 are run, the timestamp in the header is updated.
3367
3368
3369Exim version 4.33
3370-----------------
3371
3372 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3373 before starting a queue runner without re-exec. This happened only when
3374 deliver_drop_privilege was set or when the Exim user was set to root. The
3375 effect of the bug was that timeouts during subsequent deliveries caused
3376 crashes instead of being properly handled. The handler is now left at its
3377 default (and expected) setting.
3378
3379 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3380 message, again when deliver_drop_privilege is set or Exim is run as root.
3381 The bug described in (1) was not present in this case, but the tidying up
3382 of the other signals was missing. I have made the two cases consistent.
3383
3384 3. The ignore_target_hosts setting on a manualroute router was being ignored
3385 for hosts that were looked up using the /MX notation.
3386
3387 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3388 in domain lists.
3389
3390 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3391 operated on the sender address. After changing the $sender_address to <>
3392 for the sender address verify, Exim was re-instated it as the original
3393 (before rewriting) address, but remembering that it had rewritten it, so it
3394 wasn't rewriting it again. This bug also had the effect of breaking the
3395 sender address verification caching when the sender address was rewritten.
3396
3397 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3398 This has been changed so that if the ip literal address matches
3399 ignore_target_hosts, the router declines.
3400
3401 7. Added expansion conditions match_domain, match_address, and match_local_
3402 part (NOT match_host).
3403
3404 8. The placeholder for the Received: header didn't have a length field set.
3405
3406 9. Added code to Exim itself and to exim_lock to test for a specific race
3407 condition that could lead to file corruption when using MBX delivery. The
3408 issue is with the lockfile that is created in /tmp. If this file is removed
3409 after a process has opened it but before that process has acquired a lock,
3410 there is the potential for a second process to recreate the file and also
3411 acquire a lock. This could lead to two Exim processes writing to the file
3412 at the same time. The added code performs the same test as UW imapd; it
3413 checks after acquiring the lock that its file descriptor still refers to
3414 the same named file.
3415
341610. The buffer for building added header lines was of fixed size, 8192 bytes.
3417 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3418 when Exim is built.
3419
342011. Added the smtp_active_hostname option. If used, this will typically be made
3421 to depend on the incoming interface address. Because $interface_address is
3422 not set up until the daemon has forked a reception process, error responses
3423 that can happen earlier (such as "too many connections") no longer contain
3424 a host name.
3425
342612. If an expansion in a condition on a "warn" statement fails because a lookup
3427 defers, the "warn" statement is abandoned, and the next ACL statement is
3428 processed. Previously this caused the whole ACL to be aborted.
3429
343013. Added the iplsearch lookup type.
3431
343214. Added ident_timeout as a log selector.
3433
343415. Added tls_certificate_verified as a log selector.
3435
343616. Added a global option tls_require_ciphers (compare the smtp transport
3437 option of the same name). This controls incoming TLS connections.
3438
343917. I finally figured out how to make tls_require_ciphers do a similar thing
3440 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3441 before starting the TLS session.
3442
344318. Tabs are now shown as \t in -bP output.
3444
344519. If the log selector return_path_on_delivery was set, Exim crashed when
3446 bouncing a message because it had too many Received: header lines.
3447
344820. If two routers both had headers_remove settings, and the first one included
3449 a superfluous trailing colon, the final name in the first list and the
3450 first name in the second list were incorrectly joined into one item (with a
3451 colon in the middle).
3452
3453
3454Exim version 4.32
3455-----------------
3456
3457 1. Added -C and -D options to the exinext utility, mainly to make it easier
3458 to include in the automated testing, but these could be helpful when
3459 multiple configurations are in use.
3460
3461 2. The exinext utility was not formatting the output nicely when there was
3462 an alternate port involved in the retry record key, nor when there was a
3463 message id as well (for retries that were specific to a specific message
3464 and a specific host). It was also confused by IPv6 addresses, because of
3465 the additional colons they contain. I have fixed the IPv4 problem, and
3466 patched it up to do a reasonable job for IPv6.
3467
3468 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3469 delivery, the log line now contains "pipelined" if PIPELINING was used.
3470
3471 4. An SMTP transport process used to panic and die if the bind() call to set
3472 an explicit outgoing interface failed. This has been changed; it is now
3473 treated in the same way as a connect() failure.
3474
3475 5. A reference to $sender_host_name in the part of a conditional expansion
3476 that was being skipped was still causing a DNS lookup. This no longer
3477 occurs.
3478
3479 6. The def: expansion condition was not recognizing references to header lines
3480 that used bh_ and bheader_.
3481
3482 7. Added the _cache feature to named lists.
3483
3484 8. The code for checking quota_filecount in the appendfile transport was
3485 allowing one more file than it should have been.
3486
3487 9. For compatibility with Sendmail, the command line option
3488
3489 -prval:sval
3490
3491 is equivalent to
3492
3493 -oMr rval -oMs sval
3494
3495 and sets the incoming protocol and host name (for trusted callers). The
3496 host name and its colon can be omitted when only the protocol is to be set.
3497 Note the Exim already has two private options, -pd and -ps, that refer to
3498 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3499 "s", but I don't think that's a major issue.
3500
350110. A number of refactoring changes to the code, none of which should affect
3502 Exim's behaviour:
3503
3504 (a) The number of logging options was getting close to filling up the
3505 32-bit word that was used as a bit map. I have split them into two classes:
3506 those that are passed in the argument to log_write(), and those that are
3507 only ever tested independently outside of that function. These are now in
3508 separate 32-bit words, so there is plenty of room for expansion again.
3509 There is no change in the user interface or the logging behaviour.
3510
3511 (b) When building, for example, log lines, the code previously used a
3512 macro that called string_cat() twice, in order to add two strings. This is
3513 not really sufficiently general. Furthermore, there was one instance where
3514 it was actually wrong because one of the argument was used twice, and in
3515 one call a function was used. (As it happened, calling the function twice
3516 did not affect the overall behaviour.) The macro has been replaced by a
3517 function that can join an arbitrary number of extra strings onto a growing
3518 string.
3519
3520 (c) The code for expansion conditions now uses a table and a binary chop
3521 instead of a serial search (which was left over from when there were very
3522 few conditions). Also, it now recognizes conditions like "pam" even when
3523 the relevant support is not compiled in: a suitably worded error message is
3524 given if an attempt is made to use such a condition.
3525
352611. Added ${time_interval:xxxxx}.
3527
352812. A bug was causing one of the ddress fields not to be passed back correctly
3529 from remote delivery subprocesses. The field in question was not being
3530 subsequently used, so this caused to problems in practice.
3531
353213. Added new log selectors queue_time and deliver_time.
3533
353414. Might have fixed a bug in maildirsizefile handling that threw up
3535 "unexpected character" debug warnings, and recalculated the data
3536 unnecessarily. In any case, I expanded the warning message to give more
3537 information.
3538
353915. Added the message "Restricted characters in address" to the statements in
3540 the default ACL that block characters like @ and % in local parts.
3541
354216. Change 71 for release 4.31 proved to be much less benign that I imagined.
3543 Three changes have been made:
3544
3545 (a) There was a serious bug; a negative response to MAIL caused the whole
3546 recipient domain to be cached as invalid, thereby blocking all messages
3547 to all local parts at the same domain, from all sen