REVERT Debug checkin - tracing DKIM signing problems
[exim.git] / doc / doc-txt / ChangeLog
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ce552449 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.554 2008/09/29 11:41:07 nm4 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
NM
6Exim version 4.70
7-----------------
8
cdd3bb85
TK
9TK/01 Added patch by Johannes Berg that expands the main option
10 "spamd_servers" if it starts with a dollar sign.
11
12TK/02 Write list of recipients to X-Envelope-Sender header when building
13 the mbox-format spool file for content scanning (suggested by Jakob
14 Hirsch)
15
16TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
17 (http://www.dcc-servers.net/) support via dccifd. Activated by
18 setting EXPERIMENTAL_DCC=yes in Local/Makefile. Check out
19 experimental_spec.txt for more documentation.
20
21TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
22 by Mark Daniel Reidel <mr@df.eu>.
23
210f147e
NM
24NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
25 When building exim an external PCRE library is now needed -
26 PCRE is a system library on the majority of modern systems.
27 See entry on PCRE_LIBS in EDITME file.
28
deafd5b3
NM
29NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
30 conversation. Added nologin parameter to request.
31 Patch contributed by Kirill Miazine
32
089793a4
TF
33TF/01 Do not log submission mode rewrites if they do not change the address.
34
5f16ca82
TF
35TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
36
dae9d94e
NM
37NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
38 log files in place. Contributed by Roberto Lima
39
3f0da4d0
NM
40NM/04 Bugzilla 667: close socket used by dovecot authenticator
41
06864c44
TF
42TF/03 Bugzilla 615: When checking the local_parts router precondition
43 after a local_part_suffix or local_part_prefix option, Exim now
44 does not use the address's named list lookup cache, since this
45 contains cached lookups for the whole local part.
46
65a7d8c3
NM
47NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
48 Robert Millan. Documentation is in experimental-spec.txt
49
23510047 50TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 51
5f28a6e8
NM
52NM/05 Bugzilla 437: Prevent Maildix aux files being created with mode 000
53
ce552449 54NM/05 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
55 Patch provided by Jan Srzednicki
56
89dec7b6
TF
57TF/05 Leading white space used to be stripped from $spam_report which
58 wrecked the formatting. Now it is preserved.
5f28a6e8 59
a99de90c
TF
60TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
61 that they are available at delivery time.
62
e2803e40
TF
63TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
64
7199e1ee
TF
65TF/08 TLS error reporting now respects the incoming_interface and
66 incoming_port log selectors.
67
e276e04b
TF
68TF/09 Produce a more useful error message if an SMTP transport's hosts
69 setting expands to an empty string.
70
ce552449
NM
71NM/06 Bugzilla 744: EXPN did not work under TLS.
72 Patch provided by Phil Pennock
73
deafd5b3 74
47db1125
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75Exim version 4.69
76-----------------
77
4b3504d0
TK
78TK/01 Add preliminary DKIM support. Currently requires a forked version of
79 ALT-N's libdkim that I have put here:
80 http://duncanthrax.net/exim-experimental/
81
82 Note to Michael Haardt: I had to rename some vars in sieve.c. They
83 were called 'true' and it seems that C99 defines that as a reserved
84 keyword to be used with 'bool' variable types. That means you could
85 not include C99-style headers which use bools without triggering
86 build errors in sieve.c.
87
81ea09ca
NM
88NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
89 as mailq or other aliases. Changed the --help handling significantly
90 to do whats expected. exim_usage() emits usage/help information.
91
f13cddcb
SC
92SC/01 Added the -bylocaldomain option to eximstats.
93
8ad076b2
NM
94NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
95
a843aaa6
NM
96NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
97
47db1125
NM
98NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
99
100
eb4c0de6
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101Exim version 4.68
102-----------------
103
104PH/01 Another patch from the Sieve maintainer.
105
6a3bceb1
PH
106PH/02 When an IPv6 address is converted to a string for single-key lookup
107 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
108 dots are used instead of colons so that keys in lsearch files need not
109 contain colons. This was done some time before quoting was made available
110 in lsearch files. However, iplsearch files do require colons in IPv6 keys
111 (notated using the quote facility) so as to distinguish them from IPv4
112 keys. This meant that lookups for IP addresses in host lists did not work
113 for iplsearch lookups.
114
115 This has been fixed by arranging for IPv6 addresses to be expressed with
116 colons if the lookup type is iplsearch. This is not incompatible, because
117 previously such lookups could never work.
118
119 The situation is now rather anomolous, since one *can* have colons in
120 ordinary lsearch keys. However, making the change in all cases is
121 incompatible and would probably break a number of configurations.
122
2e30fa9d
TK
123TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
124 version.
125
0806a9c5
MH
126MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
127 conversion specification without a maximum field width, thereby enabling
128 a rogue spamd server to cause a buffer overflow. While nobody in their
129 right mind would setup Exim to query an untrusted spamd server, an
130 attacker that gains access to a server running spamd could potentially
131 exploit this vulnerability to run arbitrary code as the Exim user.
132
ae276964
TK
133TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
134 $primary_hostname instead of what libspf2 thinks the hosts name is.
135
0f2cbd1b
MH
136MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
137 a directory entry by the name of the lookup key. Previously, if a
138 symlink pointed to a non-existing file or a file in a directory that
139 Exim lacked permissions to read, a lookup for a key matching that
140 symlink would fail. Now it is enough that a matching directory entry
141 exists, symlink or not. (Bugzilla 503.)
142
2b85bce7
PH
143PH/03 The body_linecount and body_zerocount variables are now exported in the
144 local_scan API.
145
93655c46
PH
146PH/04 Added the $dnslist_matched variable.
147
6c512171
PH
148PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
149 This means they are set thereafter only if the connection becomes
150 encrypted.
151
152PH/06 Added the client_condition to authenticators so that some can be skipped
153 by clients under certain conditions.
154
aa6dc513
PH
155PH/07 The error message for a badly-placed control=no_multiline_responses left
156 "_responses" off the end of the name.
157
a96603a0
PH
158PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
159
8f240103
PH
160PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
161 (without spaces) instead of just copying the configuration text.
162
163PH/10 Added the /noupdate option to the ratelimit ACL condition.
164
d677b2f2
PH
165PH/11 Added $max_received_linelength.
166
d52120f2
PH
167PH/12 Added +ignore_defer and +include_defer to host lists.
168
64f2600a
PH
169PH/13 Installed PCRE version 7.2. This needed some changes because of the new
170 way in which PCRE > 7.0 is built.
171
8669f003
PH
172PH/14 Implemented queue_only_load_latch.
173
a4dc33a8
PH
174PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
175 MAIL command. The effect was to mangle the value on 64-bit systems.
176
d6a60c0f
PH
177PH/16 Another patch from the Sieve maintainer.
178
8f128379
PH
179PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
180
8932dffe
PH
181PH/18 If a system quota error occurred while trying to create the file for
182 a maildir delivery, the message "Mailbox is full" was not appended to the
183 bounce if the delivery eventually timed out. Change 4.67/27 below applied
184 only to a quota excession during the actual writing of the file.
d6a60c0f 185
ddea74fa 186PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
187 characters?) which causes problems in log lines. The DN values are now
188 passed through string_printing() before being added to log lines.
189
ddea74fa 190PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
191 and InterBase are left for another time.)
192
ddea74fa
PH
193PH/21 Added message_body_newlines option.
194
ce9f225c
PH
195PH/22 Guard against possible overflow in moan_check_errorcopy().
196
19897d52
PH
197PH/23 POSIX allows open() to be a macro; guard against that.
198
bc64a74d
PH
199PH/24 If the recipient of an error message contained an @ in the local part
200 (suitably quoted, of course), incorrect values were put in $domain and
201 $local_part during the evaluation of errors_copy.
202
eb4c0de6 203
b4ed4da0
PH
204Exim version 4.67
205-----------------
206
22ad45c9
MH
207MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
208 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
209 Jan Srzednicki.
210
b4ed4da0
PH
211PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
212 issue a MAIL command.
213
431b7361
PH
214PH/02 In an ACL statement such as
215
216 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
217
218 if a client was not listed at all, or was listed with a value other than
219 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
220 the condition was not true (as it should be), so access was not denied.
221 The bug was that the ! inversion was incorrectly passed on to the second
222 item. This has been fixed.
223
224PH/03 Added additional dnslists conditions == and =& which are different from
225 = and & when the dns lookup returns more than one IP address.
226
83da1223
PH
227PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
228 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
229
54fc8428
PH
230PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
231 FSYNC, which compiles an option called disable_fsync that allows for
232 bypassing fsync(). The documentation is heavily laced with warnings.
233
34c5e8dd
SC
234SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
235
bbe15da8
PH
236PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
237 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
238 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
239 including adding "make clean"; (3) Added -fPIC when compiling the test
240 dynamically loaded module, to get rid of a warning.
241
0e8a9471
MH
242MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
243 message fails, move_frozen_messages = true and ignore_bounce_errors_after
244 = 0s. The bug is otherwise harmless.
245
f0872424
PH
246PH/07 There was a bug in the dovecot authenticator such that the value of
247 $auth1 could be overwritten, and so not correctly preserved, after a
248 successful authentication. This usually meant that the value preserved by
249 the server_setid option was incorrect.
250
b01dd148
PH
251PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
252
6bf342e1
PH
253PH/09 Installed PCRE release 7.0.
254
273f34d0
PH
255PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
256 run for batched SMTP input. It is now run at the start of every message
257 in the batch. While fixing this I discovered that the process information
258 (output by running exiwhat) was not always getting set for -bs and -bS
259 input. This is fixed, and it now also says "batched" for BSMTP.
260
cf8b11a5
PH
261PH/11 Added control=no_pipelining.
262
41c7c167
PH
263PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
264 patch, slightly modified), and move the expansion of helo_data till after
265 the connection is made in the smtp transport (so it can use these
266 values).
267
9c57cbc0
PH
268PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
269
f3f065bb
PH
270PH/14 Added log_selector = +pid.
271
047bdd8c
PH
272PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
273
0ce9abe6
PH
274PH/16 Add ${if forany and ${if forall.
275
0e22dfd1
PH
276PH/17 Added dsn_from option to vary the From: line in DSNs.
277
4c590bd1
PH
278PH/18 Flush SMTP output before performing a callout, unless control =
279 no_callout_flush is set.
280
09945f1e
PH
281PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
282 was true (the default) a successful delivery failed to delete the retry
283 item, thus causing premature timeout of the address. The bug is now
284 fixed.
285
c51b8e75
PH
286PH/20 Added hosts_avoid_pipelining to the smtp transport.
287
e28326d8
PH
288PH/21 Long custom messages for fakedefer and fakereject are now split up
289 into multiline reponses in the same way that messages for "deny" and
290 other ACL rejections are.
291
75b1493f
PH
292PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
293 with slight modification.
294
7c5214ec
PH
295PH/23 Applied sieve patches from the maintainer "tracking the latest notify
296 draft, changing the syntax and factoring some duplicate code".
297
4311097e
PH
298PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
299 for deliveries of the second and subsequent messages over the same SMTP
300 connection.
301
29f89cad
PH
302PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
303 ${reduce, with only minor "tidies".
304
5e687460
SC
305SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
306
c3611384
PH
307PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
308 expansion side effects.
309
5a11a7b4
PH
310PH/27 When a message times out after an over-quota error from an Exim-imposed
311 quota, the bounce message says "mailbox is full". This message was not
312 being given when it was a system quota that was exceeded. It now should
313 be the same.
314
0e20aff9
MH
315MH/03 Made $recipients available in local_scan(). local_scan() already has
316 better access to the recipient list through recipients_list[], but
317 $recipients can be useful in postmaster-provided expansion strings.
318
ca86f471
PH
319PH/28 The $smtp_command and $smtp_command_argument variables were not correct
320 in the case of a MAIL command with additional options following the
321 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
322 were accidentally chopped off.
323
a14e5636
PH
324PH/29 SMTP synchronization checks are implemented when a command is read -
325 there is a check that no more input is waiting when there shouldn't be
326 any. However, for some commands, a delay in an ACL can mean that it is
327 some time before the response is written. In this time, more input might
328 arrive, invalidly. So now there are extra checks after an ACL has run for
329 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
330 pipelining has not been advertised.
331
ec95d1a6
PH
332PH/30 MH's patch to allow iscntrl() characters to be list separators.
333
42855d71
PH
334PH/31 Unlike :fail:, a custom message specified with :defer: was not being
335 returned in the SMTP response when smtp_return_error_details was false.
336 This has been fixed.
337
57c2c631
PH
338PH/32 Change the Dovecot authenticator to use read() and write() on the socket
339 instead of the C I/O that was originally supplied, because problems were
340 reported on Solaris.
341
58c01c94
PH
342PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
343 Exim which did not show up earlier: it was assuming that a call to
344 SSL_CTX_set_info_callback() might give an error value. In fact, there is
345 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
346 was a macro that became an assignment, so it seemed to work. This has
347 changed to a proper function call with a void return, hence the compile
348 error. Exim's code has been fixed.
349
dee5a20a
PH
350PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
351 cpus.
352
d2ee6114
PH
353PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
354
b2d5182b
PH
355PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
356
79749a79
PH
357PH/37 If a message is not accepted after it has had an id assigned (e.g.
358 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
359 "Completed" line in the log. When some messages of this type were
360 selected by exigrep, they were listed as "not completed". Others were
361 picked up by some special patterns. I have improved the selection
362 criteria to be more general.
79749a79 363
c456d9bb
PH
364PH/38 The host_find_failed option in the manualroute router can now be set
365 to "ignore", to completely ignore a host whose IP address cannot be
366 found. If all hosts are ignored, the behaviour is controlled by the new
367 host_all_ignored option.
368
cd9868ec
PH
369PH/39 In a list of hosts for manualroute, if one item (either because of multi-
370 homing or because of multiple MX records with /mx) generated more than
371 one IP address, and the following item turned out to be the local host,
372 all the secondary addresses of the first item were incorrectly removed
373 from the list, along with the local host and any following hosts (which
374 is what is supposed to happen).
375
ebeaf996
PH
376PH/40 When Exim receives a message, it writes the login name, uid, and gid of
377 whoever called Exim into the -H file. In the case of the daemon it was
378 behaving confusingly. When first started, it used values for whoever
379 started the daemon, but after a SIGHUP it used the Exim user (because it
380 calls itself on a restart). I have changed the code so that it now always
381 uses the Exim user.
382
2679d413
PH
383PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
384 message are rejected with the same error (e.g. no authentication or bad
385 sender address), and a DATA command is nevertheless sent (as can happen
386 with PIPELINING or a stupid MUA), the error message that was given to the
387 RCPT commands is included in the rejection of the DATA command. This is
388 intended to be helpful for MUAs that show only the final error to their
389 users.
390
84024b72
PH
391PH/42 Another patch from the Sieve maintainer.
392
8005d38e
SC
393SC/02 Eximstats - Differentiate between permanent and temporary rejects.
394 Eximstats - Fixed some broken HTML links and added missing column headers
395 (Jez Hancock).
396 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
397 columns for Rejects, Temp Rejects, Ham, and Spam rows.
398
3298c6c6
SC
399SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
400
a43a27c5
PH
401PH/43 Yet another patch from the Sieve maintainer.
402
58eb016e 403PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
404 the response to the final '.' that terminates a message, but only in the
405 case where the client has not sent further data following the '.'
406 (unfortunately, this is allowed). However, in many cases there won't be
407 any further data because there won't be any more messages to send. A call
408 to select() can be used: if it shows that the input is "ready", there is
409 either input waiting, or the socket has been closed. An attempt to read
410 the next input character can distinguish the two cases. Previously, Exim
58eb016e 411 would have sent an OK response which the client would never have see.
563b63fa
PH
412 This could lead to message repetition. This fix should cure that, at
413 least in a lot of common cases.
58eb016e 414
b43a74ea
PH
415PH/45 Do not advertise STARTTLS in response to HELP unless it would be
416 advertised in response to EHLO.
417
b4ed4da0 418
5dd1517f
PH
419Exim version 4.66
420-----------------
421
422PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
423 fixed by 4.65/MH/01 (is this a record?) are fixed:
424
425 (i) An empty string was always treated as zero by the numeric comparison
426 operators. This behaviour has been restored.
427
428 (ii) It is documented that the numeric comparison operators always treat
429 their arguments as decimal numbers. This was broken in that numbers
430 starting with 0 were being interpreted as octal.
431
432 While fixing these problems I realized that there was another issue that
433 hadn't been noticed. Values of message_size_limit (both the global option
434 and the transport option) were treated as octal if they started with 0.
435 The documentation was vague. These values are now always treated as
436 decimal, and I will make that clear in the documentation.
437
438
93cfa765
TK
439Exim version 4.65
440-----------------
441
442TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
443 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
444 versions. (#438)
445
d6066548
MH
446MH/01 Don't check that the operands of numeric comparison operators are
447 integers when their expansion is in "skipping" mode (fixes bug
448 introduced by 4.64-PH/07).
449
4362ff0d
PH
450PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
451 child addresses, Exim now panics and dies. Previously, because the count
452 is held in a short int, deliveries were likely to be lost. As such a
453 large number of recipients for a single message is ridiculous
454 (performance will be very, very poor), I have chosen to impose a limit
455 rather than extend the field.
456
93cfa765 457
944e9e9c
TF
458Exim version 4.64
459-----------------
aa41d2de 460
21d74bd9
TK
461TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
462 leftover -K file (the existence of which was triggered by #402).
463 While we were at it, introduced process PID as part of the -K
464 filename. This should rule out race conditions when creating
465 these files.
466
467TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
468 processing considerably. Previous code took too long for large mails,
469 triggering a timeout which in turn triggers #401.
470
471TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
472 in the DK code in transports.c. sendfile() is not really portable,
473 hence the _LINUX specificness.
944e9e9c
TF
474
475TF/01 In the add_headers option to the mail command in an Exim filter,
476 there was a bug that Exim would claim a syntax error in any
477 header after the first one which had an odd number of characters
478 in the field name.
479
2b1c6e3a
PH
480PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
481 callout verification, Exim cached a "reject" for the entire domain. This
482 is correct for most verifications, but it is not correct for a recipient
483 verification with use_sender or use_postmaster set, because in that case
484 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
485 case of MAIL FROM:<> rejection from other early rejections (e.g.
486 rejection of HELO). When verifying a recipient using a non-null MAIL
487 address, the cache is ignored if it shows MAIL FROM:<> rejection.
488 Whatever the result of the callout, the value of the domain cache is
489 left unchanged (for any other kind of callout, getting as far as trying
490 RCPT means that the domain itself is ok).
491
1f872c80
PH
492PH/02 Tidied a number of unused variable and signed/unsigned warnings that
493 gcc 4.1.1 threw up.
494
495PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
496 manifest itself as EPIPE rather than ECONNECT. When tidying away a
497 session, the daemon ignores ECONNECT errors and logs others; it now
498 ignores EPIPE as well.
499
d203e649
PH
500PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
501 (quoted-printable decoding).
502
cc2ed8f7 503PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 504 later the small subsequent patch to fix an introduced bug.
f951fd57 505
ddfcd446
PH
506PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
507
d45b1de8
PH
508PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
509
510PH/08 An error is now given if message_size_limit is specified negative.
511
38a0a95f 512PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 513 to be given (somewhat) arbitrary names.
38a0a95f 514
a2405d83
JJ
515JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
516 in 4.64-PH/09.
517
518JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
519 miscellaneous code fixes
520
6ea85e9a
PH
521PH/10 Added the log_reject_target ACL modifier to specify where to log
522 rejections.
523
26da7e20
PH
524PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
525 hostname. This is wrong, because it relates to the incoming message (and
526 probably the interface on which it is arriving) and not to the outgoing
527 callout (which could be using a different interface). This has been
528 changed to use the value of the helo_data option from the smtp transport
529 instead - this is what is used when a message is actually being sent. If
530 there is no remote transport (possible with a router that sets up host
531 addresses), $smtp_active_hostname is used.
6ea85e9a 532
14aa5a05 533PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 534 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
535 (a) The code assumed that strncpy() returns a negative number on buffer
536 overflow, which isn't the case. Replaced with Exim's string_format()
537 function.
538 (b) There were several signed/unsigned issues. I just did the minimum
539 hacking in of casts. There is scope for a larger refactoring.
540 (c) The code used strcasecmp() which is not a standard C function.
541 Replaced with Exim's strcmpic() function.
542 (d) The code set only $1; it now sets $auth1 as well.
543 (e) A simple test gave the error "authentication client didn't specify
544 service in request". It would seem that Dovecot has changed its
545 interface. Fortunately there's a specification; I followed it and
546 changed what the client sends and it appears to be working now.
547
ff75a1f7
PH
548PH/13 Added $message_headers_raw to provide the headers without RFC 2047
549 decoding.
550
e6f6568e
PH
551PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
552 address A is aliased to B and C, where B exists and C does not. Without
553 -v the output is "A verified" because verification stops after a
554 successful redirection if more than one address is generated. However,
555 with -v the child addresses are also verified. Exim was outputting "A
556 failed to verify" and then showing the successful verification for C,
557 with its parentage. It now outputs "B failed to verify", showing B's
558 parentage before showing the successful verification of C.
559
d6f6e0dc
PH
560PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
561 look up a TXT record in a specific list after matching in a combined
562 list.
563
322050c2
PH
564PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
565 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
566 they consult the DNS. I had assumed they would set it the way they
567 wanted; and indeed my experiments on Linux seem to show that in some
568 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
569 To be on the safe side, however, I have now made the interface to
570 host_find_byname() similar to host_find_bydns(), with an argument
571 containing the DNS resolver options. The host_find_byname() function now
572 sets these options at its start, just as host_find_bydns() does. The smtp
573 transport options dns_qualify_single and dns_search_parents are passed to
574 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
575 of host_find_byname() use the default settings of RES_DEFNAMES
576 (qualify_single) but not RES_DNSRCH (search_parents).
577
08955dd3
PH
578PH/17 Applied (a modified version of) Nico Erfurth's patch to make
579 spool_read_header() do less string testing, by means of a preliminary
580 switch on the second character of optional "-foo" lines. (This is
581 overdue, caused by the large number of possibilities that now exist.
582 Originally there were few.) While I was there, I also converted the
583 str(n)cmp tests so they don't re-test the leading "-" and the first
584 character, in the hope this might squeeze out yet more improvement.
585
1eccaa59
PH
586PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
587 flag allowing group syntax was set by the header_syntax check but not
588 turned off, possible causing trouble later; (2) The flag was not being
589 set at all for the header_verify test, causing "group"-style headers to
590 be rejected. I have now set it in this case, and also caused header_
591 verify to ignore an empty address taken from a group. While doing this, I
592 came across some other cases where the code for allowing group syntax
593 while scanning a header line wasn't quite right (mostly, not resetting
594 the flag correctly in the right place). These bugs could have caused
595 trouble for malformed header lines. I hope it is now all correct.
596
602e59e5
PH
597PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
598 with the "reply" argument non-NULL. The code, however (which originally
599 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
600 but it didn't always do it. This confused somebody who was copying the
601 code for some other use. I have removed all the tests.
602
411ef850
PH
603PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
604 feature that was used to support insecure browsers during the U.S. crypto
605 embargo. It requires special client support, and Exim is probably the
606 only MTA that supported it -- and would never use it because real RSA is
607 always available. This code has been removed, because it had the bad
608 effect of slowing Exim down by computing (never used) parameters for the
609 RSA_EXPORT functionality.
610
7befa435
PH
611PH/21 On the advice of Timo Sirainen, added a check to the dovecot
612 authenticator to fail if there's a tab character in the incoming data
613 (there should never be unless someone is messing about, as it's supposed
614 to be base64-encoded). Also added, on Timo's advice, the "secured" option
615 if the connection is using TLS or if the remote IP is the same as the
616 local IP, and the "valid-client-cert option" if a client certificate has
617 been verified.
618
48da4259 619PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
620 authenticators. This can be used for authorization after authentication
621 succeeds. (In the case of plaintext, it servers for both authentication
622 and authorization.)
623
48da4259
PH
624PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
625 if any retry times were supplied.
626
d1d5595c
PH
627PH/24 Exim crashed if verify=helo was activated during an incoming -bs
628 connection, where there is no client IP address to check. In this
629 situation, the verify now always succeeds.
630
0ef732d9
PH
631PH/25 Applied John Jetmore's -Mset patch.
632
328895cc
PH
633PH/26 Added -bem to be like -Mset, but loading a message from a file.
634
fd700877
PH
635PH/27 In a string expansion for a processed (not raw) header when multiple
636 headers of the same name were present, leading whitespace was being
637 removed from all of them, but trailing whitespace was being removed only
638 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
639 before concatenation. Completely empty headers in a concatenation (as
640 before) are ignored.
fd700877 641
8dce1a6f
PH
642PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
643 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
644
17af4a17
PH
645PH/29 [Removed. This was a change that I later backed out, and forgot to
646 correct the ChangeLog entry (that I had efficiently created) before
647 committing the later change.]
f6c332bd
PH
648
649PH/30 Exim was sometimes attempting to deliver messages that had suffered
650 address errors (4xx response to RCPT) over the same connection as other
651 messages routed to the same hosts. Such deliveries are always "forced",
652 so retry times are not inspected. This resulted in far too many retries
653 for the affected addresses. The effect occurred only when there were more
654 hosts than the hosts_max_try setting in the smtp transport when it had
655 the 4xx errors. Those hosts that it had tried were not added to the list
656 of hosts for which the message was waiting, so if all were tried, there
657 was no problem. Two fixes have been applied:
658
659 (i) If there are any address or message errors in an SMTP delivery, none
660 of the hosts (tried or untried) are now added to the list of hosts
661 for which the message is waiting, so the message should not be a
662 candidate for sending over the same connection that was used for a
663 successful delivery of some other message. This seems entirely
664 reasonable: after all the message is NOT "waiting for some host".
665 This is so "obvious" that I'm not sure why it wasn't done
666 previously. Hope I haven't missed anything, but it can't do any
667 harm, as the worst effect is to miss an optimization.
668
669 (ii) If, despite (i), such a delivery is accidentally attempted, the
670 routing retry time is respected, so at least it doesn't keep
671 hammering the server.
672
c1114884
PH
673PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
674 in ${readsocket because some servers need this prod.
675
7a0743eb
PH
676PH/32 Added some extra debug output when updating a wait-xxx database.
677
0d85fa3f
PH
678PH/33 The hint "could be header name not terminated by colon", which has been
679 given for certain expansion errors for a long time, was not being given
680 for the ${if def:h_colon_omitted{... case.
681
1bf43b78
PH
682PH/34 The spec says: "With one important exception, whenever a domain list is
683 being scanned, $domain contains the subject domain." There was at least
684 one case where this was not true.
685
520de300
PH
686PH/35 The error "getsockname() failed: connection reset by peer" was being
687 written to the panic log as well as the main log, but it isn't really
688 panic-worthy as it just means the connection died rather early on. I have
689 removed the panic log writing for the ECONNRESET error when getsockname()
690 fails.
691
48c7f9e2
PH
692PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
693 runs only) independently of the message's sender address. This meant
694 that, if the 4xx error was in fact related to the sender, a different
695 message to the same recipient with a different sender could confuse
696 things. In particualar, this can happen when sending to a greylisting
697 server, but other circumstances could also provoke similar problems.
698 I have changed the default so that the retry time for these errors is now
699 based a combination of the sender and recipient addresses. This change
700 can be overridden by setting address_retry_include_sender=false in the
701 smtp transport.
702
99ea1c86
PH
703PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
704 remote server are returned as part of bounce messages. This was not
705 happening for LMTP over a pipe (the lmtp transport), but now it is the
706 same for both kinds of LMTP.
707
a2042e78
PH
708PH/38 Despite being documented as not happening, Exim was rewriting addresses
709 in header lines that were in fact CNAMEs. This is no longer the case.
710
4fbcfc2e
PH
711PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
712 and queue runs started by the daemon processed all messages. This has
713 been fixed so that -R and -S can now usefully be given with -q<time>.
714
aa41d2de
PH
715PH/40 Import PCRE release 6.7 (fixes some bugs).
716
af561417
PH
717PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
718
3cc66b45
PH
719PH/42 Give an error if -q is specified more than once.
720
194cc0e4
PH
721PH/43 Renamed the variables $interface_address and $interface_port as
722 $received_ip_address and $received_port, to make it clear that these
723 values apply to message reception, and not to the outgoing interface when
724 a message is delivered. (The old names remain recognized, of course.)
725
a401ddaa
PH
726PH/44 There was no timeout on the connect() call when using a Unix domain
727 socket in the ${readsocket expansion. There now is.
728
4e88a19f
PH
729PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
730 be meaningful with "accept".
731
d7d7b289
SC
732SC/01 Eximstats V1.43
733 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
734
735SC/02 Eximstats V1.44
736 Use a glob alias rather than an array ref in the generated
737 parser. This improves both readability and performance.
738
739SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
740 Collect SpamAssassin and rejection statistics.
741 Don't display local sender or destination tables unless
742 there is data to show.
743 Added average volumes into the top table text output.
744
745SC/04 Eximstats V1.46
746 Collect data on the number of addresses (recipients)
747 as well as the number of messages.
748
749SC/05 Eximstats V1.47
750 Added 'Message too big' to the list of mail rejection
751 reasons (thanks to Marco Gaiarin).
752
753SC/06 Eximstats V1.48
754 Mainlog lines which have GMT offsets and are too short to
755 have a flag are now skipped.
756
757SC/07 Eximstats V1.49 (Alain Williams)
758 Added the -emptyok flag.
759
760SC/08 Eximstats V1.50
761 Fixes for obtaining the IP address from reject messages.
762
0ea2a468
JJ
763JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
764 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
765 whitesspace changes from 4.64-PH/27
766
767JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
768 match 4.64-PH/13
769
770JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
771 are found, allow negative numbers in numeric criteria)
772
773JJ/06 exipick.20061117.2, added new $message_body_missing variable
774
775JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
776 to match changes made in 4.64-PH/43
777
8a10f5a4
PH
778PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
779
30e18802
PH
780PH/47 Put in an explicit test for a DNS lookup of an address record where the
781 "domain" is actually an IP address, and force a failure. This locks out
782 those revolvers/nameservers that support "A-for-A" lookups, in
783 contravention of the specifications.
784
55728a4f
PH
785PH/48 When a host name was looked up from an IP address, and the subsequent
786 forward lookup of the name timed out, the host name was left in
787 $sender_host_name, contrary to the specification.
d7d7b289 788
d7837193
PH
789PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
790 restricted to single-key lookups, Exim was not diagnosing an error if
791 * or *@ was used with a query-style lookup.
792
87054a31
PH
793PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
794
ea2c01d2
MH
795MH/01 local_scan ABI version incremented to 1.1. It should have been updated
796 long ago, but noone interested enough thought of it. Let's just say that
797 the "1.1" means that there are some new functions that weren't there at
798 some point in the past.
799
e4fa6968
PH
800PH/51 Error processing for expansion failure of helo_data from an smtp
801 transport during callout processing was broken.
802
56f5d9bd
PH
803PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
804 tested/used via the -bh/-bhc/-bs options.
805
922e1c28
PH
806PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
807 bug, fixed in subsequent PCRE releases).
808
21eb6e72
PH
809PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
810 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
811
a0540757
PH
812PH/55 Check for a ridiculously long file name in exim_dbmbuild.
813
944e9e9c 814
478be7b0
SC
815Exim version 4.63
816-----------------
817
818SC/01 Use a glob alias rather than an array ref in eximstats generated
819 parser. This improves both readability and performance.
820
821SC/02 Collect SpamAssassin and rejection statistics in eximstats.
822 Don't display local sender or destination tables in eximstats unless
823 there is data to show.
824 Added average volumes into the eximstats top table text output.
825
826SC/03 Collect data on the number of addresses (recipients) as well
827 as the number of messages in eximstats.
828
2b965a65
TF
829TF/01 Correct an error in the documentation for the redirect router. Exim
830 does (usually) call initgroups() when daemonizing.
478be7b0 831
45b91596
PH
832TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
833 with consistent privilege compared to when running as a daemon.
478be7b0 834
c59f5781
TF
835TF/03 Note in the spec that $authenticated_id is not set for local
836 submissions from trusted users.
837
90fc3069
TF
838TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
839 Thanks to Dean Brooks <dean@iglou.com> for the patch.
840
6083aca0
TF
841TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
842 by adding some example configuration directives to the default
843 configuration file. A little bit of work is required to uncomment the
844 directives and define how usernames and passwords are checked, but
845 there is now a framework to start from.
846
765b530f
PH
847PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
848 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
849 without this. I don't know how relevant this is to other LDAP libraries.
850
4e167a8c
PH
851PH/02 Add the verb name to the "unknown ACL verb" error.
852
4608d683
PH
853PH/03 Magnus Holmgren's patch for filter_prepend_home.
854
b8dc3e4a
PH
855PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
856
5418e93b
PH
857PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
858 directory not expanded when it should be if an expanded home directory
859 was set for the address (which is overridden by the transport).
860
b4a9bda2
PH
861PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
862 libradius.
863
45b91596
PH
864PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
865 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
866 because it is too late at that time, and has no effect.
867
5547e2c5
PH
868PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
869 security issue with \' (bugzilla #107). I could not use the
870 PQescapeStringConn() function, because it needs a PGconn value as one of
871 its arguments.
872
dbcef0ea
PH
873PH/08 When testing addresses using -bt, indicate those final addresses that
874 are duplicates that would not cause an additional delivery. At least one
875 person was confused, thinking that -bt output corresponded to deliveries.
876 (Suppressing duplicates isn't a good idea as you lose the information
877 about possibly different redirections that led to the duplicates.)
878
25257489
PH
879PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
880 systems where poll() doesn't work, in particular OS X.
881
c816d124
PH
882PH/10 Added more information to debugging output for retry time not reached.
883
a9ccd69a
PH
884PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
885 operations in malware.c.
886
75fa1910
PH
887PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
888 signatures.
889
a7d7aa58
PH
890PH/13 If write_rejectlog was set false when logging was sent to syslog with
891 syslog_duplication set false, log lines that would normally be written
892 both the the main log and to the reject log were not written to syslog at
893 all.
894
42119b09
PH
895PH/14 In the default configuration, change the use of "message" in ACL warn
896 statements to "add_header".
897
41609df5
PH
898PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
899 not followed by a command (e.g. "seen endif").
900
a5bd321b
PH
901PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
902 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
903 latter.
904
e85a7ad5 905PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
906 so that it is now:
907
e85a7ad5
PH
908 ${if or { \
909 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
910 { match{$h_precedence:}{(?i)bulk|list|junk} } \
911 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
912 }{no}{yes}}
913
e85a7ad5
PH
914 The Auto-Submitted: and various List- headers are standardised, whereas I
915 don't think Precedence: ever was.
5dff5817 916
d8fe1c03
PH
917PH/18 Refactored debugging code in route_finduser() to show more information,
918 in particular, the error code if getpwnam() issues one.
919
16282d2b
PH
920PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
921 This is apparently needed in addition to the PH/07 change above to avoid
922 any possible encoding problems.
923
35d40a98
PH
924PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
925 but not after initializing Perl.
926
034d99ab
PH
927PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
928 output them only if debugging. By default they are written stderr,
929 apparently, which is not desirable.
930
6ec97b1b
PH
931PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
932 queries.
933
e22ca4ac
JJ
934JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
935 --not options
936
937JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
938
33d73e3b
PH
939PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
940 authenticated or an ident call has been made. Suppress the default
941 values for $authenticated_id and $authenticated_sender (but permit -oMai
942 and -oMas) when testing with -bh.
943
9ecb03f3
PH
944PH/24 Re-jigged the order of the tests in the default configuration so that the
945 tests for valid domains and recipients precede the DNS black list and CSA
946 tests, on the grounds that those ones are more expensive.
947
084efe8d
PH
948PH/25 Exim was not testing for a space following SMTP commands such as EHLO
949 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
950 This bug exists in every version of Exim that I still have, right back to
951 0.12.
952
366fc9f0
PH
953PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
954 However, an attempt to turn on case-sensitivity in a regex key by
955 including (?-i) didn't work because the subject string was already
956 lowercased, and the effects were non-intuitive. It turns out that a
957 one-line patch can be used to allow (?-i) to work as expected.
958
c59f5781 959
c887c79e
TF
960Exim version 4.62
961-----------------
962
963TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
964 other effects) broke the use of negated acl sub-conditions.
965
1cce3af8
PH
966PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
967 patch).
968
afb3eaaf
PH
969PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
970 "Deny" causes Exim to reject the incoming connection with a 554 error.
971 Unfortunately, if there is a major crisis, such as a disk failure,
972 tcp-wrappers gives "deny", whereas what one would like would be some
973 kind of temporary error. A kludge has been added to help with this.
974 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
975 554 error is used if errno is still zero or contains ENOENT (which occurs
976 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
977 451 error is used.
978
e173618b
PH
979PH/03 Add -lutil to the default FreeBSD LIBS setting.
980
dd16e114
PH
981PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
982 errors. Otherwise a message that provokes a temporary error (when other
983 messages do not) can cause a whole host to time out.
984
f7fd3850
PH
985PH/05 Batch deliveries by appendfile and pipe transports did not work when the
986 addresses were routed directly to files or pipes from a redirect router.
987 File deliveries just didn't batch; pipe deliveries might have suffered
988 odd errors.
989
d87df92c
PH
990PH/06 A failure to get a lock for a hints database would erroneously always say
991 "Failed to get write lock", even when it was really a read lock.
992
7e9f683d
PH
993PH/07 The appendfile transport was creating MBX lock files with a fixed mode
994 of 0600. This has been changed to use the value of the lockfile_mode
995 option (which defaults to 0600).
996
bfad5236
PH
997PH/08 Applied small patch from the Sieve maintainer.
998
01c490df
PH
999PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1000 folder from quota calculations, a direct delivery into this folder messed
1001 up the contents of the maildirsize file. This was because the regex was
1002 used only to exclude .Trash (or whatever) when the size of the mailbox
1003 was calculated. There was no check that a delivery was happening into an
1004 excluded directory. This bug has been fixed by ignoring all quota
1005 processing for deliveries into excluded directories.
1006
d6629cdc
PH
1007PH/10 Added the maildirfolder_create_regex option to appendfile.
1008
1cce3af8 1009
214e2000
PH
1010Exim version 4.61
1011-----------------
1012
1013PH/01 The code for finding all the local interface addresses on a FreeBSD
1014 system running IPv6 was broken. This may well have applied to all BSD
1015 systems, as well as to others that have similar system calls. The broken
1016 code found IPv4 interfaces correctly, but gave incorrect values for the
1017 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1018 that it would not match correctly against @[] and not recognize the IPv6
1019 addresses as local.
1020
f9daeae0
PH
1021PH/02 The ipliteral router was not recognizing addresses of the form user@
1022 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1023
7e66e54d
PH
1024PH/03 Added disable_ipv6.
1025
c8ea1597
PH
1026PH/04 Changed $reply_address to use the raw form of the headers instead of the
1027 decoded form, because it is most often used to construct To: headers
1028 lines in autoreplies, and the decoded form may well be syntactically
1029 invalid. However, $reply_address has leading white space removed, and all
1030 newlines turned into spaces so that the autoreply transport does not
1031 grumble.
1032
911f6fde
PH
1033PH/05 If group was specified without a user on a router, and no group or user
1034 was specified on a transport, the group from the router was ignored.
1035
47ca6d6c
PH
1036PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1037 for visible compile-time settings that can be used to change these
1038 numbers, for those that want even more. Backwards compatibility with old
1039 spool files has been maintained. However, going back to a previous Exim
1040 release will lost any variables that are in spool files.
1041
ed0e9820
PH
1042PH/07 Two small changes when running in the test harness: increase delay when
1043 passing a TCP/IP connection to a new process, in case the original
1044 process has to generate a bounce, and remove special handling of
1045 127.0.0.2 (sic), which is no longer necessary.
1046
eff37e47
PH
1047PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1048 be the same on different OS.
1049
1921d2ea
PH
1050PH/09 Moved a debug statement in filter processing to avoid a race problem when
1051 testing.
1052
b3f69ca8
JJ
1053JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1054 whether --show-vars was specified or not
1055
1056JJ/02 exipick: Added support for new ACL variable spool format introduced
1057 in 4.61-PH/06
1058
424a1c63
PH
1059PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1060 syntactically invalid From: or Reply-to: line, and a filter used this to
1061 generate an autoreply, and therefore failed to obtain an address for the
1062 autoreply, Exim could try to deliver to a non-existent relative file
1063 name, causing unrelated and misleading errors. What now happens is that
1064 it logs this as a hard delivery error, but does not attempt to create a
1065 bounce message.
1066
7a100415
PH
1067PH/11 The exinext utility has a -C option for testing purposes, but although
1068 the given file was scanned by exinext itself; it wasn't being passed on
1069 when Exim was called.
1070
19b9dc85
PH
1071PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1072 an end-of-file indication when reading a command response.
1073
309bd837
PH
1074PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1075 compiled. In many other places in Exim, IPv6 addresses are always
1076 recognized, so I have changed this. It also means that IPv4 domain
1077 literals of the form [IPV4:n.n.n.n] are now always recognized.
1078
59e82a2a
PH
1079PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1080 used if the router is not running as root, for example, when verifying at
1081 ACL time, or when using -bh. The debugging output from this situation was
1082 non-existent - all you got was a failure to exec. I have made two
1083 changes:
1084
1085 (a) Failures to set uid/gid, the current directory, or a process leader
1086 in a subprocess such as that created by queryprogram now generate
1087 suitable debugging ouput when -d is set.
1088
1089 (b) The queryprogram router detects when it is not running as root,
1090 outputs suitable debugging information if -d is set, and then runs
1091 the subprocess without attempting to change uid/gid.
1092
9edc04ce
PH
1093PH/15 Minor change to Makefile for building test_host (undocumented testing
1094 feature).
1095
1349e1e5
PH
1096PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1097 additional section of a DNS packet that returns MX or SRV records.
1098 Instead, it always explicitly searches for A/AAAA records. This avoids
1099 major problems that occur when a DNS server includes only records of one
1100 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1101 fixed another bug: if SRV records were looked up and the corresponding
1102 address records were *not* found in the additional section, the port
1103 values from the SRV records were lost.
1104
ea49d0e1
PH
1105PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1106 using the correct key (the original address) when searching the retry
1107 rules in order to find which one to use for generating the retry hint.
1108
064a94c9
PH
1109PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1110 adding the default one. Similarly, if it contains a Reply-To: header, the
1111 errors_reply_to option, if set, is not used.
1112
727071f8
PH
1113PH/19 When calculating a retry time, Exim used to measure the "time since
1114 failure" by looking at the "first failed" field in the retry record. Now
1115 it does not use this if it is later than than the arrival time of the
1116 message. Instead it uses the arrival time. This makes for better
1117 behaviour in cases where some deliveries succeed, thus re-setting the
1118 "first failed" field. An example is a quota failure for a huge message
1119 when small messages continue to be delivered. Without this change, the
1120 "time since failure" will always be short, possible causing more frequent
1121 delivery attempts for the huge message than are intended.
dd16e114 1122 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1123
f78eb7c6
PH
1124PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1125 $1, $2, $3) because the numerical variables can be reset during some
1126 expansion items (e.g. "match"), thereby losing the authentication data.
1127
21c28500
PH
1128PH/21 Make -bV show the size of off_t variables so that the test suite can
1129 decide whether to run tests for quotas > 2G.
1130
1131PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1132 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1133 filecount value is greater than 2G or if a quota value is greater than 2G
1134 on a system where the size of off_t is not greater than 4, a panic error
1135 is given.
1136
1688f43b
PH
1137PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1138 never match. The debug and -bh output now contains an explicit error
1139 message indicating a malformed IPv4 address or mask.
1140
1141PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1142 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1143 PH/23 above applies.
1144
9675b384
PH
1145PH/25 Do not write to syslog when running in the test harness. The only
1146 occasion when this arises is a failure to open the main or panic logs
1147 (for which there is an explicit test).
1148
6a3f1455
PH
1149PH/26 Added the /no_tell option to "control=freeze".
1150
dac79d3e
PH
1151PH/27 If a host name lookup failed very early in a connection, for example, if
1152 the IP address matched host_lookup and the reverse lookup yielded a name
1153 that did not have a forward lookup, an error message of the form "no IP
1154 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1155 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1156
5977a0b3
PH
1157PH/28 An enabling patch from MH: add new function child_open_exim2() which
1158 allows the sender and the authenticated sender to be set when
1159 submitting a message from within Exim. Since child_open_exim() is
1160 documented for local_scan(), the new function should be too.
1161
c91535f3
PH
1162PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1163 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1164 results in an empty string is now treated as unset.
1165
0d46a8c8
PH
1166PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1167
278c6e6c
PH
1168PH/31 Added sender_verify_fail logging option.
1169
2cbb4081
PH
1170PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1171 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1172 tidied the source and removed it altogether.
1173
3eef829e
PH
1174PH/33 When a queue run was abandoned because the load average was too high, a
1175 log line was always written; now it is written only if the queue_run log
1176 selector is set. In addition, the log line for abandonment now contains
1177 information about the queue run such as the pid. This is always present
1178 in "start" and "stop" lines but was omitted from the "abandon" line.
1179
1ab95fa6
PH
1180PH/34 Omit spaces between a header name and the colon in the error message that
1181 is given when verify = headers_syntax fails (if there are lots of them,
1182 the message gets confusing).
1183
230205fc
PH
1184PH/35 Change the default for dns_check_names_pattern to allow slashes within
1185 names, as there are now some PTR records that contain slashes. This check
1186 is only to protect against broken name servers that fall over on strange
1187 characters, so the fact that it applies to all lookups doesn't matter.
1188
75e0e026
PH
1189PH/36 Now that the new test suite is complete, we can remove some of the
1190 special code in Exim that was needed for the old test suite. For example,
1191 sorting DNS records because real resolvers return them in an arbitrary
1192 order. The new test suite's fake resolver always returns records in the
1193 same order.
1194
1195PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1196 bounces) except when queue_only is set, to avoid logging races between
1197 the different processes.
1198
145396a6
PH
1199PH/38 Panic-die if .include specifies a non-absolute path.
1200
3cd34f13
PH
1201PH/39 A tweak to the "H" retry rule from its user.
1202
11121d3d
JJ
1203JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1204 a label. They prevented compilation on older perls.
1205
1206JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1207 a warning to be raised on newish perls.
1208
1209JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1210 on queue. Changes to match documented behaviour of showing count of
1211 messages matching specified criteria.
1212
8def5aaf
PH
1213PH/40 Changed the default ident timeout from 30s to 5s.
1214
929ba01c
PH
1215PH/41 Added support for the use of login_cap features, on those BSD systems
1216 that have them, for controlling the resources used by pipe deliveries.
1217
2632889e
PH
1218PH/42 The content-scanning code uses fopen() to create files in which to put
1219 message data. Previously it was not paying any attention to the mode of
1220 the files. Exim runs with umask(0) because the rest of the code creates
1221 files with open(), and sets the required mode explicitly. Thus, these
1222 files were ending up world-writeable. This was not a big issue, because,
1223 being within the spool directory, they were not world-accessible. I have
1224 created a function called modefopen, which takes an additional mode
1225 argument. It sets umask(777), creates the file, chmods it to the required
1226 mode, then resets the umask. All the relevant calls to fopen() in the
1227 content scanning code have been changed to use this function.
1228
944a9c55
PH
1229PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1230 to 24 hours. This avoids potential overflow problems when processing G
1231 and H retry rules. I suspect nobody ever tinkers with this value.
1232
4a23603b
PH
1233PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1234
4730f942
PH
1235PH/45 When the plaintext authenticator is running as a client, the server's
1236 challenges are checked to ensure they are valid base64 strings. By
1237 default, the authentication attempt is cancelled if an invalid string is
1238 received. Setting client_ignore_invalid_base64 true ignores these errors.
1239 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1240 they are received. Thus, the responses can be made to depend on the
1241 challenges. If an invalid string is ignored, an empty string is placed in
1242 the variable.
1243
30dba1e6
PH
1244PH/46 Messages that are created by the autoreply transport now contains a
1245 References: header, in accordance with RFCs 2822 and 3834.
1246
382afc6b
PH
1247PH/47 Added authenticated_sender_force to the smtp transport.
1248
a86229cf
PH
1249PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1250
50c99ba6
PH
1251PH/49 Installed latest patch from the Sieve maintainer.
1252
d35e429d
PH
1253PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1254 was also set, the appendfile transport was unnecessarily scanning a
1255 directory of message files (e.g. for maildir delivery) to find the count
1256 of files (along with the size), even though it did not need this
1257 information. It now does the scan only if it needs to find either the
1258 size of the count of files.
1259
f90d018c
PH
1260PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1261
75def545
PH
1262PH/52 Two bugs concerned with error handling when the smtp transport is
1263 used in LMTP mode:
1264
1265 (i) Exim was not creating retry information for temporary errors given
1266 for individual recipients after the DATA command when the smtp transport
1267 was used in LMTP mode. This meant that they could be retried too
1268 frequently, and not timed out correctly.
1269
1270 (ii) Exim was setting the flag that allows error details to be returned
1271 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1272 recipients that were returned after the DATA command.
1273
1274PH/53 This is related to PH/52, but is more general: for any failing address,
1275 when detailed error information was permitted to be returned to the
1276 sender, but the error was temporary, then after the final timeout, only
1277 "retry timeout exceeded" was returned. Now it returns the full error as
1278 well as "retry timeout exceeded".
1279
c46782ef
PH
1280PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1281 do this, and (what is worse) MTAs that accept it.
1282
71fafd95
PH
1283PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1284 will now be deprecated.
1285
2c5db4fd
PH
1286PH/56 New os.c-cygwin from the Cygwin maintainer.
1287
9cf6b11a
JJ
1288JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1289 formats (previously only available in exim formats via -bpr, -bpru,
1290 and -bpra. Now also available in native and exiqgrep formats)
1291
1292JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1293 with very large, slow to parse queues
1294
1295JJ/08 exipick: added ! as generic prefix to negate any criteria format
1296
1297JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1298
898d150f
PH
1299PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1300 responses to authentication challenges, though it was showing the
1301 challenges; (ii) I've removed the CR characters from the debug output for
1302 SMTP output lines.
1303
46218253
PH
1304PH/58 Allow for the insertion of a newline as well as a space when a string
1305 is turned into more than one encoded-word during RFC 2047 encoding. The
1306 Sieve code now uses this.
1307
e97957bc
PH
1308PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1309 data_4xx, lost_connection, tls_required.
1310
81e509d7
PH
1311PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1312 message was being sent as an SMTP response.
1313
3d240ff7
PH
1314PH/61 Add -l and -k options to exicyclog.
1315
b37c4101
PH
1316PH/62 When verifying, if an address was redirected to one new address, so that
1317 verification continued, and the new address failed or deferred after
1318 having set something in $address_data, the value of $address_data was not
1319 passed back to the ACL. This was different to the case when no
1320 redirection occurred. The value is now passed back in both cases.
1321
79378e0f
PH
1322PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1323 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1324 use login_cap.h, so on its own it isn't the distinguishing feature. The
1325 new name refers directly to the setclassresources() function.
1326
e49c7bb4
PH
1327PH/65 Added configuration files for NetBSD3.
1328
d114ec46
PH
1329PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1330
f3d7df6c
PH
1331PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1332 is preferred over IPv4.
1333
715ab376
PH
1334PH/68 The bounce_return_message and bounce_return_body options were not being
1335 honoured for bounces generated during the reception of non-SMTP messages.
1336 In particular, this applied to messages rejected by the ACL. This bug has
1337 been fixed. However, if bounce_return_message is true and bounce_return_
1338 body is false, the headers that are returned for a non-SMTP message
1339 include only those that have been read before the error was detected.
1340 (In the case of an ACL rejection, they have all been read.)
1341
6b31b150
PH
1342PH/69 The HTML version of the specification is now built in a directory called
1343 spec_html instead of spec.html, because the latter looks like a path with
1344 a MIME-type, and this confuses some software.
1345
1346PH/70 Catch two compiler warnings in sieve.c.
1347
d515a917
PH
1348PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1349 function verify_get_ident() calls ip_connect() to connect a socket, but
1350 if the "connect()" function timed out, ip_connect() used to close the
1351 socket. However, verify_get_ident() also closes the socket later, and in
1352 between Exim writes to the log, which may get opened at this point. When
1353 the socket was closed in ip_connect(), the log could get the same file
1354 descriptor number as the socket. This naturally causes chaos. The fix is
1355 not to close the socket in ip_connect(); the socket should be closed by
1356 the function that creates it. There was only one place in the code where
1357 this was missing, in the iplookup router, which I don't think anybody now
1358 uses, but I've fixed it anyway.
1359
9b8fadde
PH
1360PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1361 well as to direct DNS lookups. Otherwise the handling of names in host
1362 lists is inconsistent and therefore confusing.
1363
214e2000 1364
5de37277
PH
1365Exim version 4.60
1366-----------------
1367
cc38ddbf
PH
1368PH/01 Two changes to the default runtime configuration:
1369
1370 (1) Move the checks for relay_from_hosts and authenticated clients from
1371 after to before the (commented out) DNS black list checks.
1372
1373 (2) Add control=submission to the relay_from_hosts and authenticated
1374 clients checks, on the grounds that messages accepted by these
1375 statements are most likely to be submissions.
5de37277 1376
72fdd6ae
PH
1377PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1378
1379 (1) Generate an error if the third argument for the ${prvs expansion is
1380 not a single digit.
1381
1382 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1383 string.
1384
1385 (3) Reset the variables that are obtained from the first argument of
1386 ${prvscheck and used in the second argument before leaving the code,
1387 because their memory is reclaimed, so using them afterwards may do
1388 silly things.
1389
1390 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1391 one (it's much easier than Tom thought :-).
1392
1393 (5) Because of (4), we can now allow for the use of $prvscheck_result
1394 inside the third argument.
cb9328de 1395
cb741023
PH
1396PH/03 For some reason, the default setting of PATH when running a command from
1397 a pipe transport was just "/usr/bin". I have changed it to
1398 "/bin:/usr/bin".
1399
f174f16e
PH
1400PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1401 anything to be listed in the output from -bV.
b2f5a032 1402
c25242d7
PH
1403PH/05 When a filter generated an autoreply, the entire To: header line was
1404 quoted in the delivery log line, like this:
1405
1406 => >A.N.Other <ano@some.domain> <original@ddress> ...
1407
1408 This has been changed so that it extracts the operative address. There
1409 may be more than one such address. If so, they are comma-separated, like
1410 this:
1411
1412 => >ano@some.domain,ona@other.domain <original@ddress> ...
1413
82c19f95
PH
1414PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1415 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1416 not being looked up in the rDNS to get a host name, Exim was showing the
1417 IP address twice in Received: lines, even though the IP addresses were
1418 identical. For example:
1419
1420 Received: from [1.2.3.4] (helo=[1.2.3.4])
1421
1422 However, if the real host name was known, it was omitting the HELO data
1423 if it matched the actual IP address. This has been tidied up so that it
1424 doesn't show the same IP address twice.
1425
d7ffbc12
PH
1426PH/07 When both +timestamp and +memory debugging was on, the value given by
1427 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1428 called by the debug printing, thereby overwriting the timestamp buffer.
1429 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1430
9f526266
PH
1431PH/08 When the original message was included in an autoreply transport, it
1432 always said "this is a copy of the message, including all the headers",
1433 even if body_only or headers_only was set. It now gives an appropriate
1434 message.
1435
87fcc8b9
PH
1436PH/09 Applied a patch from the Sieve maintainer which:
1437
1438 o fixes some comments
1439 o adds the (disabled) notify extension core
1440 o adds some debug output for the result of if/elsif tests
1441 o points to the current vacation draft in the documentation
1442 and documents the missing references header update
1443
1444 and most important:
1445
1446 o fixes a bug in processing the envelope test (when testing
1447 multiple envelope elements, the last element determinted the
1448 result)
1449
456682f5
PH
1450PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1451 Electronic Mail") by including:
1452
1453 Auto-submitted: auto-generated
1454
1455 in the messages that it generates (bounce messages and others, such as
1456 warnings). In the case of bounce messages for non-SMTP mesages, there was
1457 also a typo: it was using "Auto_submitted" (underscore instead of
1458 hyphen). Since every message generated by Exim is necessarily in response
1459 to another message, thes have all been changed to:
1460
1461 Auto-Submitted: auto-replied
1462
1463 in accordance with these statements in the RFC:
1464
1465 The auto-replied keyword:
1466
1467 - SHOULD be used on messages sent in direct response to another
1468 message by an automatic process,
1469
1470 - MUST NOT be used on manually-generated messages,
1471
1472 - MAY be used on Delivery Status Notifications (DSNs) and Message
1473 Disposition Notifications (MDNs),
1474
1475 - MUST NOT be used on messages generated by automatic or periodic
1476 processes, except for messages which are automatic responses to
1477 other messages.
1478
3e46c1aa
PH
1479PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1480 to the default Received: header definition.
456682f5 1481
49826d12
PH
1482PH/12 Added log selector acl_warn_skipped (default on).
1483
eba0c039
PH
1484PH/13 After a successful wildlsearch lookup, discard the values of numeric
1485 variables because (a) they are in the wrong storage pool and (b) even if
1486 they were copied, it wouldn't work properly because of the caching.
1487
a0d6ba8a
PH
1488PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1489 checking when decoding. Apparently there are clients that generate
1490 overlong encoded strings. Why am I not surprised?
1491
f0917727
PH
1492PH/15 If the first argument of "${if match_address" was not empty, but did not
1493 contain an "@" character, Exim crashed. Now it writes a panic log message
1494 and treats the condition as false.
1495
096fee00
PH
1496PH/16 In autoreply, treat an empty string for "once" the same as unset.
1497
024bd3c2
PH
1498PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1499 extension "envelope-auth". The code is finished and in agreement with
1500 other implementations, but there is no documentation so far and in fact,
1501 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1502 not changing the active code.
1503
1504 Print executed "if" and "elsif" statements when debugging is used. This
1505 helps a great deal to understand what a filter does.
1506
1507 Document more things not specified clearly in RFC3028. I had all this
1508 sorted out, when out of a sudden new issues came to my mind. Oops."
1509
df199fec
PH
1510PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1511 (Bugzilla #53).
1512
d27f1df3
PH
1513PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1514 canonical form (as documented). However, after a host name lookup from
1515 the IP address, check_host() was doing a simple string comparison with
1516 addresses acquired from the DNS when checking that the found name did
1517 have the original IP as one of its addresses. Since any found IPv6
1518 addresses are likely to be in abbreviated form, the comparison could
1519 fail. Luckily, there already exists a function for doing the comparison
1520 by converting both addresses to binary, so now that is used instead of
1521 the text comparison.
1522
96776534
PH
1523PH/20 There was another similar case to PH/19, when a complete host name was
1524 given in a host list; looking up its IP address could give an abbreviated
1525 form, whereas the current host's name might or might not be abbreviated.
1526 The same fix has been applied.
1527
5de37277 1528
9a799bc0
PH
1529Exim version 4.54
1530-----------------
1531
1532PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1533 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1534 It now does.
1535
99a4b039
PH
1536PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1537 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1538
1539PH/03 Typo: missing ".o" in src/pcre/Makefile.
1540
4b233853
PH
1541PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1542 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1543 Also, for "Auto-Submitted", treat anything other than "no" as
1544 non-personal, in accordance with RFC 3834. (Previously it treated
1545 anything starting "auto-" as non-personal.)
1546
8857ccfd
PH
1547TF/01 The control=submission/name=... option had a problem with syntax
1548 errors if the name included a slash character. The /name= option
1549 now slurps the rest of the string, so it can include any characters
1550 but it must come last in the list of options (after /sender_retain
1551 or /domain=).
1552
433a2980
PH
1553PH/05 Some modifications to the interface to the fake nameserver for the new
1554 testing suite.
1555
3e46c1aa 1556
9a799bc0 1557
e3a311ba
TK
1558Exim version 4.53
1559-----------------
1560
1561TK/01 Added the "success_on_redirect" address verification option. See
1562 NewStuff for rationale and an example.
1563
13b685f9
PH
1564PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1565
395ff96d
PH
1566PH/02 Patch to exigrep to allow it to work on syslog lines.
1567
5b68f6e4
PH
1568PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1569 fread() to skip over the body file's header line, because in Cygwin the
1570 header line is locked and is inaccessible.
1571
1ab52c69
PH
1572PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1573 co-exist for some time) to make it clear that it is the Exim ID that is
1574 referenced, not the Message-ID: header line.
1575
b07e6aa3
PH
1576PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1577 string_format() function, because snprintf() does not exist on all
1578 operating systems.
1579
254e032f
PH
1580PH/06 The use of forbid_filter_existstest now also locks out the use of the
1581 ${stat: expansion item.
1582
3af76a81
PH
1583PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1584 protocol synchronization error", to keep the pedants happy.
1585
2548ba04
PH
1586PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1587 well as for IRIX systems, when gcc is being used. See the host.c source
1588 file for comments.
1589
b6c6011d
PH
1590PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1591
cf39cf57
PH
1592PH/10 Named domain lists were not working if used in a queue_smtp_domains
1593 setting.
1594
f1513293
PH
1595PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1596 transport and to the smtp transport in LMTP mode.
1597
727549a4
PH
1598TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1599
af46795e
PH
1600PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1601 run a filter in a subprocess. This could lead to confusion in subsequent
1602 lookups in the parent process. There should also be a search_tidyup() at
1603 the end of the subprocess.
1604
d7b47fd0
PH
1605PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1606 only if the host matched helo_try_verify_hosts, which caused the
1607 verification to occur when the EHLO/HELO command was issued. The ACL just
1608 tested the remembered result. Now, if a previous verification attempt has
1609 not happened, "verify = helo" does it there and then.
1610
ee744174
JJ
1611JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1612
b582ab87
PH
1613TK/03 Fix log output including CR from clamd.
1614
41a13e0a
PH
1615PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1616 exist provoked a memory error which could cause a segfault.
1617
f625cc5a
PH
1618PH/15 Installed PCRE 6.2
1619
1620PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1621
21f7af35
PH
1622PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1623 of the problem. Specifically, suggested +O2 rather than +O1 for the
1624 HP-UX compiler.
1625
31480e42
PH
1626PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1627
2d280592
PH
1628PH/20 If a delivery was routed to a non-standard port by means of an SRV
1629 record, the port was not correctly logged when the outgoing_port log
1630 selector was set (it logged the transort's default port).
1631
7cd1141b
PH
1632PH/21 Added support for host-specific ports to manualroute, queryprogram,
1633 fallback_hosts, and "hosts" in the smtp transport.
1634
1635PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1636 host errors such as "Connection refused".
1637
750af86e
PH
1638PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1639 authentication with radiusclient 0.4.9:
1640
1641 - Error returned from rc_read_config was caught wrongly
1642 - Username/password not passed on to radius server due to wrong length.
1643
1644 The presumption is that some radiusclient API changes for 4.51/PH/17
1645 were not taken care of correctly. The code is still untested by me (my
1646 Linux distribution still has 0.3.2 of radiusclient), but it was
1647 contributed by a Radius user.
1648
1649PH/24 When doing a callout, the value of $domain wasn't set correctly when
1650 expanding the "port" option of the smtp transport.
1651
4304270b
TK
1652TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1653 while reading a MIME header. Thanks to Tom Hughes for a patch.
1654
750af86e
PH
1655PH/24 Include config.h inside local_scan.h so that configuration settings are
1656 available.
1657
64ffc24f
PH
1658PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1659 that in an ACL for RCPT (for example), you can examine exactly what was
1660 received.
1661
5dd9625b
PH
1662PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1663 commands, but it was not correctly comparing the address with the actual
1664 client host address. Thus, it would show the EHLO address in Received:
1665 header lines when this was not necessary.
1666
5591031b
PH
1667PH/27 Added the % operator to ${eval:}.
1668
ba18e66a
PH
1669PH/28 Exim tries to create and chdir to its spool directory when it starts;
1670 it should be ignoring failures (because with -C, for example, it has lost
1671 privilege). It wasn't ignoring creation failures other than "already
1672 exists".
1673
9cec981f
PH
1674PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1675 -bV or -d is used.
1676
aa2b5c79
PH
1677PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1678 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1679 too many continuations, the temporary file was not being removed, and the
1680 return code was incorrect.
aa2b5c79 1681
48a53b7f
PH
1682PH/31 Missing "BOOL" in function definition in filtertest.c.
1683
1c59d63b
PH
1684PH/32 Applied Sieve patches from the maintainer.
1685
671012da
TK
1686TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1687
1509d3a8
PH
1688PH/33 Added "verify = not_blind".
1689
1690PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1691 Local/Makefile (with some defaults set). These are used in built scripts
1692 such as exicyclog, but they have never been used in the exim_install
1693 script (though there are many overriding facilities there). I have
1694 arranged that the exim_install script now takes note of these two
1695 settings.
1696
1697PH/35 Installed configuration files for Dragonfly.
1698
2fe1a124
PH
1699PH/36 When a locally submitted message by a trusted user did not contain a
1700 From: header, and the sender address was obtained from -f or from an SMTP
1701 MAIL command, and the trusted user did not use -F to supply a sender
1702 name, $originator_name was incorrectly used when constructing a From:
1703 header. Furthermore, $originator_name was used for submission mode
1704 messages from external hosts without From: headers in a similar way,
1705 which is clearly wrong.
1706
8800895a
PH
1707PH/37 Added control=suppress_local_fixups.
1708
ccfdb010
PH
1709PH/38 When log_selector = +received_sender was set, and the addition of the
1710 sender made the log line's construction buffer exactly full, or one byte
1711 less than full, an overflow happened when the terminating "\n" was
1712 subsequently added.
1713
1130bfb0
PH
1714PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1715 when the result of a list match is failure because a DNS lookup failed.
1716
ebcb507f
PH
1717PH/40 RM_COMMAND is now used in the building process.
1718
c35e155c
PH
1719PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1720 the "build-* directories that it finds.
1721
95d1f782
PH
1722PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1723 address in a domain literal was a prefix of an interface address.
1724
fd6de02e
PH
1725PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1726 when verifying a sender address, unless rewrite_headers is false.
1727
58de37c5
PH
1728PH/44 Wrote a long comment about why errors_to addresses are verified as
1729 recipients, not senders.
1730
261cf466
TF
1731TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1732 the ratelimit ACL was added.
1733
3ee512ff
PH
1734PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1735
e08c430f
PH
1736PH/46 Added extra information about PostgreSQL errors to the error string.
1737
bef5a11f
PH
1738PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1739 avoiding the need to install special zones in a real server. This is
1740 backwards compatible; if it can't find the fake resolver, it drops back.
1741 Thus, both old and new test suites can be run.
1742
7546de58
TF
1743TF/02 Added util/ratelimit.pl
1744
e5d5a95f
TF
1745TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1746 clock is set back in time.
1747
2e88a017
TF
1748TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1749 Candler <B.Candler@pobox.com>.
1750
a5f65aa4
TF
1751TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1752 OK for addresses that are the result of redirections.
1753
e7726cbf
PH
1754PH/48 A number of further additions for the benefit of the new test suite,
1755 including a fake gethostbyname() that interfaces to the fake DNS resolver
1756 (see PH/47 above).
1757
a7fdad5b
TF
1758TF/06 The fix for widen_domains has also been applied to qualify_single and
1759 search_parents which are the other dnslookup options that can cause
1760 header rewrites.
1761
6af56900
PH
1762PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1763 type ("H").
1764
0925ede6
PH
1765PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1766
66afa403
TF
1767TF/07 Exim produced the error message "an SRV record indicated no SMTP
1768 service" if it encountered an MX record with an empty target hostname.
1769 The message is now "an MX or SRV record indicated no SMTP service".
1770
0154e85a
TF
1771TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1772 if the DNS of the sending site is misconfigured. This is quite a
1773 common situation. This change restores the behaviour of treating a
1774 helo verification defer as a failure.
1775
16f12c76
PH
1776PH/51 If self=fail was set on a router, the bounce message did not include the
1777 actual error message.
1778
bbe902f0 1779
e5a9dba6
PH
1780Exim version 4.52
1781-----------------
1782
1783TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1784
22c3b60b
PH
1785PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1786 command itself ended in error, the underlying message about the transport
1787 filter timeout was being overwritten with the pipe command error. Now the
1788 underlying error message should be appended to the second error message.
1789
06a9b4b5
PH
1790TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1791
c1ac6996
PH
1792PH/02 Reduce the amount of output that "make" produces by default. Full output
1793 can still be requested.
1794
9c7a242c
PH
1795PH/03 The warning log line about a condition test deferring for a "warn" verb
1796 was being output only once per connection, rather than after each
1797 occurrence (because it was using the same function as for successful
1798 "warn" verbs). This seems wrong, so I have changed it.
1799
87ba3f5f
PH
1800TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1801 it should not have, which might have caused a crash in the right
1802 circumstances, but probably never did.
1803
1804PH/04 Installed a modified version of Tony Finch's patch to make submission
1805 mode fix the return path as well as the Sender: header line, and to
1806 add a /name= option so that you can make the user's friendly name appear
1807 in the header line.
1808
29aba418
TF
1809TF/03 Added the control = fakedefer ACL modifier.
1810
fe0dab11
TF
1811TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1812 Mark Lowes for thorough testing.
870f6ba8 1813
11d337a4
TK
1814TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1815
1816TK/03 Merged latest SRS patch from Miles Wilton.
1817
415c8f3b
PH
1818PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1819 with the definition in sysexits.h (which is #included earlier).
1820 Fortunately, Exim does not actually use EX_OK. The code used to try to
1821 preserve the sysexits.h value, by assumimg that macro definitions were
1822 scanned for macro replacements. I have been disabused of this notion,
1823 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1824
958541e9
PH
1825PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1826 in the smtp transport. When a block could not be written in a single
1827 write() function, the timeout was being re-applied to each part-write.
1828 This seems wrong - if the receiver was accepting one byte at a time it
1829 would take for ever. The timeout is now adjusted when this happens. It
1830 doesn't have to be particularly precise.
1831
c206415f
TK
1832TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1833 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1834
2a4be8f9
PH
1835PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1836 without a domain if the check to <postmaster@domain> fails.
1837
1cba11c5
SC
1838SC/01 Eximstats: added -xls and the ability to specify output files
1839 (patch written by Frank Heydlauf).
1840
1841SC/02 Eximstats: use FileHandles for outputing results.
1842
1843SC/03 Eximstats: allow any combination of xls, txt, and html output.
1844
1845SC/04 Eximstats: fixed display of large numbers with -nvr option
1846
1847SC/05 Eximstats: fixed merging of reports with empty tables.
1848
1849SC/06 Eximstats: added the -include_original_destination flag
1850
1851SC/07 Eximstats: removed tabs and trailing whitespace.
1852
1005d00e
TK
1853TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1854
1855TK/06 MBOX spool code: Add real "From " MBOX separator line
1856 so the .eml file is really in mbox format (even though
1857 most programs do not really care). Patch from Alex Miller.
1858
1859TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1860 The latter is generated from $received_to and is only set if the
1861 message has one envelope recipient. SA can use these headers,
1862 obviously out-of-the-box. Patch from Alex Miller.
1863
9b4768fa
PH
1864PH/08 The ${def test on a variable was returning false if the variable's
1865 value was "0", contrary to what the specification has always said!
1866 The result should be true unless the variable is empty.
1867
1868PH/09 The syntax error of a character other than { following "${if
1869 def:variable_name" (after optional whitespace) was not being diagnosed.
1870 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1871 accidental colon was present, for example, could give incorrect results.
1872
0d7eb84a
PH
1873PH/10 Tidied the code in a number of places where the st_size field of a stat()
1874 result is used (not including appendfile, where other changes are about
1875 to be made).
1876
1877PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1878 This involved changing a lot of size variables from int to off_t. It
1879 should work with maildirs and everything.
1880
40727bee
TK
1881TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1882 spamd dying while we are connected to it.
1883
554d2369
TF
1884TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1885 <jgh@wizmail.org>
1886
1f922db1
PH
1887PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1888 function for BDB 4.3.
1889
ef213c3b
PH
1890PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1891
8ac170f3
PH
1892PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1893 the sources for PCRE have been re-arranged and more files are now
1894 involved.
1895
b1c749bb
PH
1896PH/15 The code I had for printing potentially long long variables in PH/11
1897 above was not the best (it lost precision). The length of off_t variables
1898 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1899 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1900 to be "long long int" or "long int". This is needed for the internal
1901 formatting function string_vformat().
b1c749bb 1902
4aac9b49
PH
1903PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1904 the configuration file to be ":syslog", then the script "guesses" where
1905 the logs files are, rather than using the compiled in default. In our
1906 case the guess is not the same as the compiled default, so the script
1907 suddenly stopped working when I started to use syslog. The patch checks
1908 to see if log_file_path is "". If so, it attempts to read it from exim
1909 with no configuration file to get the compiled in version, before it
1910 falls back to the previous guessing code."
1911
294520c8
TK
1912TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1913 implementing BATV in an Exim configuration. See NewStuff for the gory
1914 details.
1915
5bd022fe
PH
1916PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1917 Makefile that are specific to HP-UX.
1918
90e9ce59
PH
1919PH/18 If the "use_postmaster" option was set for a recipient callout together
1920 with the "random" option, the postmaster address was used as the MAIL
1921 FROM address for the random test, but not for the subsequent recipient
1922 test. It is now used for both.
1923
5ea81592
PH
1924PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1925 patch removes a few documentation additions to RFC 3028, because the
1926 latest draft now contains them. It adds the new en;ascii-case comparator
1927 and a new error check for 8bit text in MIME parts. Comparator and
1928 require names are now matched exactly. I enabled the subaddress
1929 extension, but it is not well tested yet (read: it works for me)."
1930
c6c2dc1d
PH
1931PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1932 rework some of the code of TK/09 above to avoid the hardwired use of
1933 "%lld" and "long long". Replaced the call to snprintf() with a call to
1934 string_vformat().
1935
fffffe4c
PH
1936PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1937 records point to non-existent hosts", "retry timeout exceeded", and
1938 "retry time not reached for any host after a long failure period".
ca02eafb 1939
9a26b6b2
PH
1940PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1941 experimental DomainKeys support:
1942
1943 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1944 (2) On an error such as an illegally used "control", the wrong name for
1945 the control was given.
1946
1947 These problems did NOT occur unless DomainKeys support was compiled.
1948
4aee0225
PH
1949PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1950
32d668a5
PH
1951PH/24 Added ${if match_ip condition.
1952
8187c3f3
PH
1953PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1954 databases so that it will be absolutely obvious if a crash occurs in the
1955 DB library. This is a regular occurrence (often caused by mis-matched
1956 db.h files).
1957
ff790e47 1958PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1959 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1960 picked up on a user's system that detects such things. There doesn't seem
1961 to be a gcc warning option for this - only an attribute that has to be
1962 put on the function's prototype. It seems that in Fedora Core 4 they have
1963 set this on a number of new functions. No doubt there will be more in due
1964 course.
ff790e47 1965
5417f6d1
PH
1966PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1967 specify a transport. However, if an address that was verified by such a
1968 router was the subject of a callout, Exim crashed because it tried to
1969 read the rcpt_include_affixes from the non-existent transport. Now it
1970 just assumes that the setting of that option is false. This bug was
1971 introduced by 4.51/PH/31.
1972
59cf8544
PH
1973PH/28 Changed -d+all to exclude +memory, because that information is very
1974 rarely of interest, but it makes the output a lot bigger. People tend to
1975 do -d+all out of habit.
1976
e7ad8a65
PH
1977PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1978 code in os-type was giving problems when libc.so lives in lib64, like on
1979 x86_64 Fedora Core.
1980
ade42478
PH
1981PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1982 aren't the modern standard, and it seems that some systems' include files
1983 don't always have them. Exim was already checking for some of the newer
1984 ones like T_AAAA, and defining it itself. I've added checks for all the
1985 record types that Exim uses.
1986
182ad5cf
PH
1987PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1988 not automatically generating a new one, as it is supposed to. This
1989 prevented TLS from working. If the file did exist, but contained invalid
1990 data, a new version was generated, as expected. It was only the case of a
1991 non-existent file that was broken.
1992
b0d9fc80
TK
1993TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1994 with a change in libdomainkeys > 0.64.
1995
1996TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1997 from DNS. If the selector record carries the flag, it now has
1998 precedence over the domain-wide flag.
1999
2000TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2001
47c7a64a
PH
2002PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2003 the use of a port name that isn't defined in /etc/services) occurred, the
2004 message was deferred as in a normal delivery, and thus remained on the
2005 spool, instead of being failed because of the mua_wrapper setting. This
2006 is now fixed, and I tidied up some of the mua_wrapper messages at the
2007 same time.
2008
a388bce4
SC
2009SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2010 the messages in a hash of arrays rather than using individual hashes.
2011 This is a bit cleaner and results in dramatic memory savings, albeit
2012 at a slight CPU cost.
2013
2014SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2015 as requested by Marc Sherman.
2016
2017SC/10 Eximstats: added histograms for user specified patterns as requested
2018 by Marc Sherman.
2019
0793e4ed
SC
2020SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2021
c58b88df
PH
2022PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2023 fopen() in the content-scanning modules that did not already have it.
2024
e7ad8a65 2025
7982096b
PH
2026Exim version 4.51
2027-----------------
2028
1a46a8c5
PH
2029TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2030 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2031
2f079f46 2032TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2033
2034TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2035
2036PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2037 to test Sieve filters that use "vacation".
2038
2039PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2040 that changes the way the GnuTLS parameters are stored in the cache file.
2041 The new format can be generated externally. For backward compatibility,
2042 if the data in the cache doesn't make sense, Exim assumes it has read an
2043 old-format file, and it generates new data and writes a new file. This
2044 means that you can't go back to an older release without removing the
2045 file.
2046
2047PH/03 A redirect router that has both "unseen" and "one_time" set does not
2048 work if there are any delivery delays because "one_time" forces the
2049 parent to be marked "delivered", so its unseen clone is never tried
2050 again. For this reason, Exim now forbids the simultaneous setting of
2051 these two options.
2052
2053PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2054 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2055 entry if you want to know the details. The fix, however, neglected to
2056 consider the case when local delivery batching is involved. The test for
2057 "previously delivered" was not happening when checking to see if an
2058 address could be batched with a previous (undelivered) one; under
2059 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2060 address.
1a46a8c5
PH
2061
2062PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2063 in its include files, and this causes problems building Exim.
2064
2065PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2066 header_syntax) but Exim was just ignoring anything given after a slash.
2067 In particular, this caused confusion with an attempt to use "verify =
2068 reverse_host_lookup/defer_ok". An error is now given when options are
2069 supplied for verify items that do not have them. (Maybe reverse_host_
2070 lookup should have a defer_ok option, but that's a different point.)
2071
2072PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2073 defined by RFC 821) to 2048, because there were problems with some AUTH
2074 commands, and RFC 1869 says the size should be increased for extended
2075 SMTP commands that take arguments.
2076
2077PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2078 Finch).
2079
2080PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2081 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2082
49c2d5ea
PH
2083PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2084 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2085 whatever). Otherwise the password may appear in the log. Following change
2086 PH/42 below, there is no longer a chance of it appearing in a bounce
2087 message.
49c2d5ea 2088
bf759a8b
PH
2089PH/11 Installed exipick version 20050225.0 from John Jetmore.
2090
83364d30
PH
2091PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2092 of its addresses was ever tried. (Bugzilla bug #2.)
2093
7999bbd7
PH
2094PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2095 the result incorrectly in the debug output. (It correctly added a newline
2096 to what was transported.)
2097
7dbf77c9
PH
2098TF/01 Added $received_time.
2099
74e0617f
PH
2100PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2101 commented out examples of how to interface to a virus scanner and to
2102 SpamAssassin. Also added commented examples of av_scanner and
2103 spamd_address settings.
2104
2f079f46
PH
2105PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2106 and controls are allowed in which ACLs. There were a couple of minor
2107 errors. Some of the entries in the conditions table (which is a table of
2108 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2109 negation of where the condition IS allowed.
2110
8c841523
PH
2111PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2112
7766a4f0
PH
2113PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2114 header file does not have a version number, so I've had to invent a new
2115 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2116 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2117 radiusclient), but it was contributed by a Radius user.
2118
8b417f2c
PH
2119PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2120 files or directories, for OpenSSL.
2121
901f42cb
PH
2122PH/19 When an Exim process that is running as root has to create an Exim log
2123 file, it does so in a subprocess that runs as exim:exim so as to get the
2124 ownership right at creation (otherwise, other Exim processes might see
2125 the file with the wrong ownership). There was no test for failure of this
2126 fork() call, which would lead to the process getting stuck as it waited
2127 for a non-existent subprocess. Forks do occasionally fail when resources
2128 run out. I reviewed all the other calls to fork(); they all seem to check
2129 for failure.
2130
f9b9210e
PH
2131PH/20 When checking for unexpected SMTP input at connect time (before writing
2132 the banner), Exim was not dealing correctly with a non-positive return
2133 from the read() function. If the client had disconnected by this time,
2134 the result was a log entry for a synchronization error with an empty
2135 string after "input=" when read() returned zero. If read() returned -1
2136 (an event I could not check), uninitialized data bytes were printed.
2137 There were reports of junk text (parts of files, etc) appearing after
2138 "input=".
2139
54cdb463
PH
2140PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2141
cf00dad6
PH
2142PH/22 Added support for macro redefinition, and (re)definition in between
2143 driver and ACL definitions.
2144
acb1b346
PH
2145PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2146 forgetting to use the resulting value; it was using the unexpanded value.
2147
c5ddb310
PH
2148PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2149 hadn't been configured. The fix is from Juergen Kreileder, who
2150 understands it better than I do:
2151
2152 "Here's what I see happening with three configured cyrus_sasl
2153 authenticators configured (plain, login, cram-md5):
2154
2155 On startup auth_cyrus_sasl_init() gets called for each of these.
2156 This means three calls to sasl_listmech() without a specified mech_list.
2157 => SASL tests which mechs of all available mechs actually work
2158 => three warnings about OTP not working
2159 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2160
2161 With the patch, sasl_listmech() also gets called three times. But now
2162 SASL's mech_list option is set to the server_mech specified in the the
2163 authenticator. Or in other words, the answer from sasl_listmech()
2164 gets limited to just the mech you're testing for (which is different
2165 for each call.)
2166 => the return list contains just 'plain' or 'login', 'cram-md5' or
2167 nothing depending on the value of ob->server_mech.
2168
2169 I've just tested the patch: Authentication still works fine,
2170 unavailable mechs specified in the exim configuration are still
2171 caught, and the auth.log warnings about OTP are gone."
2172
31619da6
PH
2173PH/25 When debugging is enabled, the contents of the command line are added
2174 to the debugging output, even when log_selector=+arguments is not
2175 specified.
2176
bebaf0fc
PH
2177PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2178 answer is "GNU", and only if the return is "GNU/something" is the answer
2179 "Linux".
2180
475fe28a
PH
2181PH/27 $acl_verify_message is now set immediately after the failure of a
2182 verification in an ACL, and so is available in subsequent modifiers. In
2183 particular, the message can be preserved by coding like this:
2184
2185 warn !verify = sender
2186 set acl_m0 = $acl_verify_message
2187
2188 Previously, $acl_verify_message was set only while expanding "message"
2189 and "log_message" when a very denied access.
2190
7e8bec7a
PH
2191PH/28 Modified OS/os.c-Linux with
2192
2193 -#ifndef OS_LOAD_AVERAGE
2194 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2195
2196 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2197 nomenclature these days.)
2198
e4a89c47
PH
2199PH/29 Installed patch from the Sieve maintainer that adds the options
2200 sieve_useraddress and sieve_subaddress to the redirect router.
2201
5ca2a9a1
PH
2202PH/30 In these circumstances:
2203 . Two addresses routed to the same list of hosts;
2204 . First host does not offer TLS;
2205 . First host accepts first address;
2206 . First host gives temporary error to second address;
2207 . Second host offers TLS and a TLS session is established;
2208 . Second host accepts second address.
2209 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2210 and peerdn, if requested) that were in fact used only for the second
2211 address.
7e8bec7a 2212
c688b954
PH
2213PH/31 When doing a callout as part of verifying an address, Exim was not paying
2214 attention to any local part prefix or suffix that was matched by the
2215 router that accepted the address. It now behaves in the same way as it
2216 does for delivery: the affixes are removed from the local part unless
2217 rcpt_include_affixes is set on the transport.
2218
fed77020
PH
2219PH/32 Add the sender address, as F=<...>, to the log line when logging a
2220 timeout during the DATA phase of an incoming message.
2221
7fe1560f
PH
2222PH/33 Sieve envelope tests were broken for match types other than :is. I have
2223 applied a patch sanctioned by the Sieve maintainer.
c688b954 2224
ebb6e6d5
PH
2225PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2226 the uid or gid is negative. A case of a negative gid caused this to be
2227 noticed. The fix allows for either to be negative.
2228
9c4e8f60
PH
2229PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2230 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2231 overlooked.
2232
2233PH/36 The change PH/12 above was broken. Fixed it.
2234
d7174846
PH
2235PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2236 the grounds that routing the same address twice would always produce the
2237 same answer. This might have been true once, but it is certainly no
2238 longer true now. Routing a child address may depend on the previous
2239 routing that produced that child. Some complicated redirection strategies
2240 went wrong when messages had multiple recipients, and made Exim's
2241 behaviour dependent on the order in which the addresses were given.
2242
2243 I have moved the duplicate checking until after the routing is complete.
2244 Exim scans the addresses that are assigned to local and remote
2245 transports, and removes any duplicates. This means that more work will be
2246 done, as duplicates will always all be routed, but duplicates are
2247 presumably rare, so I don't expect this is of any significance.
2248
2249 For deliveries to pipes, files, and autoreplies, the duplicate checking
2250 still happens during the routing process, since they are not going to be
2251 routed further.
2252
cfe75fc3
PH
2253PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2254 It corrects a timeout issue with spamd. This is Ian's comment: "The
2255 background is that sometimes spamd either never reads data from a
2256 connection it has accepted, or it never writes response data. The exiscan
2257 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2258 blindly assumes that writes won't block so it may never time out."
2259
be22d70e
PH
2260PH/39 Allow G after quota size as well as K and M.
2261
0612b098
PH
2262PH/40 The value set for $authenticated_id in an authenticator may not contain
2263 binary zeroes or newlines because the value is written to log lines and
2264 to spool files. There was no check on this. Now the value is run through
2265 the string_printing() function so that such characters are converted to
2266 printable escape sequences.
2267
2e0c1448
PH
2268PH/41 $message_linecount is a new variable that contains the total number of
2269 lines in the message. Compare $body_linecount, which is the count for the
2270 body only.
2271
447d236c
PH
2272PH/42 Exim no longer gives details of delivery errors for specific addresses in
2273 bounce and delay warning messages, except in certain special cases, which
2274 are as follows:
2275
2276 (a) An SMTP error message from a remote host;
2277 (b) A message specified in a :fail: redirection;
2278 (c) A message specified in a "fail" command in a system filter;
2279 (d) A message specified in a FAIL return from the queryprogram router;
2280 (e) A message specified by the cannot_route_message router option.
2281
2282 In these cases only, Exim does include the error details in bounce and
2283 warning messages. There are also a few cases where bland messages such
2284 as "unrouteable address" or "local delivery error" are given.
2285
d20976dc
PH
2286PH/43 $value is now also set for the "else" part of a ${run expansion.
2287
f656d135
PH
2288PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2289 being worked on, but at least Exim now implements the latest version to
2290 play with."
2291
2e2a30b4
PH
2292PH/45 In a pipe transport, although a timeout while waiting for the pipe
2293 process to complete was treated as a delivery failure, a timeout while
2294 writing the message to the pipe was logged, but erroneously treated as a
2295 successful delivery. Such timeouts include transport filter timeouts. For
2296 consistency with the overall process timeout, these timeouts are now
2297 treated as errors, giving rise to delivery failures by default. However,
2298 there is now a new Boolean option for the pipe transport called
2299 timeout_defer, which, if set TRUE, converts the failures into defers for
2300 both kinds of timeout. A transport filter timeout is now identified in
2301 the log output.
2302
9176e9f0
PH
2303PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2304 systems where "make" and "gmake" are different, calling "gmake" at top
2305 level broke things. I've arranged for the value of $(MAKE) to be passed
2306 from the Makefile to this script so that it can call the same version of
2307 "make".
2308
7982096b 2309
bbe902f0
PH
2310A note about Exim versions 4.44 and 4.50
2311----------------------------------------
2312
2313Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2314changes of various kinds. As a consequence, a big documentation update was
2315needed. This delayed the release for rather longer than seemed good, especially
2316in the light of a couple of (minor) security issues. Therefore, the changes
2317that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2318release. So 4.44 and 4.50 are in effect two different branches that both start
2319from 4.43.
2320
2321I have left the 4.50 change log unchanged; it contains all the changes since
23224.43. The change log for 4.44 is below; many of its items are identical to
2323those for 4.50. This seems to be the most sensible way to preserve the
2324historical information.
2325
2326
f7b63901 2327Exim version 4.50
495ae4b0
PH
2328-----------------
2329
5fe762f6
PH
2330 1. Minor wording change to the doc/README.SIEVE file.
2331
139059f6 2332 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2333 computation of the current number of files was incorrect.
495ae4b0 2334
7086e875
PH
2335 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2336 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2337 place.
2338
35af9f61
PH
2339 4. Give more explanation in the error message when the command for a transport
2340 filter fails to execute.
2341
b668c215
PH
2342 5. There are several places where Exim runs a non-Exim command in a
2343 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2344 was being done only for the command run by the queryprogram router. It is
2345 now done for all such subprocesses. The other cases are: ${run, transport
2346 filters, and the commands run by the lmtp and pipe transports.
2347
a494b1e1
PH
2348 6. Added CONFIGURE_GROUP build-time option.
2349
2350 7. Some older OS have a limit of 256 on the maximum number of file
2351 descriptors. Exim was using setrlimit() to set 1000 as a large value
2352 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2353 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2354
c5fcb476
PH
2355 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2356 was an oversight, and furthermore, ever since the addition of extra
2357 controls (e.g. 4.43/32), the checks on when to allow different forms of
2358 "control" were broken. There should now be diagnostics for all cases when a
2359 control that does not make sense is encountered.
2360
69358f02
PH
2361 9. Added the /retain_sender option to "control=submission".
2362
5be20824
PH
236310. $recipients is now available in the predata ACL (oversight).
2364
eb2c0248
PH
236511. Tidy the search cache before the fork to do a delivery from a message
2366 received from the command line. Otherwise the child will trigger a lookup
2367 failure and thereby defer the delivery if it tries to use (for example) a
2368 cached ldap connection that the parent has called unbind on.
2369
2a3eea10
PH
237012. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2371 of $address_data from the recipient verification was clobbered by the
2372 sender verification.
2373
237413. The value of address_data from a sender verification is now available in
2375 $sender_address_data in subsequent conditions in the ACL statement.
2376
23c7ff99
PH
237714. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2378
4deaf07d
PH
237915. Added a new option "connect=<time>" to callout options, to set a different
2380 connection timeout.
2381
926e1192
PH
238216. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2383 was its contents. (It was OK if the option was not defined at all.)
2384
650edc6f
PH
238517. A "Completed" log line is now written for messages that are removed from
2386 the spool by the -Mrm option.
2387
2c7db3f5
PH
238818. New variables $sender_verify_failure and $recipient_verify_failure contain
2389 information about exactly what failed.
2390
3d235903
PH
239119. Added -dd to debug only the daemon process.
2392
7c7ad977
PH
239320. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2394 handles timeouts, both on the server side and network timeouts. Renamed the
2395 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2396
981756db
PH
239721. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2398 It is now set to "smtps".
2399
d4eb88df
PH
240022. $host_address is now set to the target address during the checking of
2401 ignore_target_hosts.
2402
240323. When checking ignore_target_hosts for an ipliteral router, no host name was
2404 being passed; this would have caused $sender_host_name to have been used if
2405 matching the list had actually called for a host name (not very likely,
2406 since this list is usually IP addresses). A host name is now passed as
2407 "[x.x.x.x]".
2408
7d468ab8
PH
240924. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2410 code that specifies a non-restarting handler (typically sigaction() in
2411 modern systems) in an attempt to fix a rare and obscure crash bug.
2412
241325. Narrowed the window for a race in the daemon that could cause it to ignore
2414 SIGCHLD signals. This is not a major problem, because they are used only to
2415 wake it up if nothing else does.
2416
62c0818f
PH
241726. A malformed maildirsize file could cause Exim to calculate negative values
2418 for the mailbox size or file count. Odd effects could occur as a result.
2419 The maildirsize information is now recalculated if the size or filecount
2420 end up negative.
2421
26034054
PH
242227. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2423 support for a long time. Removed HAVE_SYS_VFS_H.
2424
af66f652
PH
242528. Installed the latest version of exipick from John Jetmore.
2426
90af77f4
PH
242729. In an address list, if the pattern was not a regular expression, an empty
2428 subject address (from a bounce message) matched only if the pattern was an
2429 empty string. Non-empty patterns were not even tested. This was the wrong
2430 because it is perfectly reasonable to use an empty address as part of a
2431 database query. An empty address is now tested by patterns that are
2432 lookups. However, all the other forms of pattern expect the subject to
2433 contain a local part and a domain, and therefore, for them, an empty
2434 address still always fails if the pattern is not itself empty.
2435
d8ef3577
PH
243630. Exim went into a mad DNS loop when attempting to do a callout where the
2437 host was specified on an smtp transport, and looking it up yielded more
2438 than one IP address.
2439
5cb8cbc6
PH
244031. Re-factored the code for checking spool and log partition space into a
2441 function that finds that data and another that does the check. The former
2442 is then used to implement four new variables: $spool_space, $log_space,
2443 $spool_inodes, and $log_inodes.
2444
14702f5b
PH
244532. The RFC2047 encoding function was originally intended for short strings
2446 such as real names; it was not keeping to the 75-character limit for
2447 encoded words that the RFC imposes. It now respects the limit, and
2448 generates multiple encoded words if necessary. To be on the safe side, I
2449 have increased the buffer size for the ${rfc2047: expansion operator from
2450 1024 to 2048 bytes.
2451
063b1e99
PH
245233. It is now permitted to omit both strings after an "if" condition; if the
2453 condition is true, the result is "true". As before, when the second string
2454 is omitted, a false condition yields an empty string. This makes it less
2455 cumbersome to write custom ACL and router conditions.
2456
652e1b65
PH
245734. Failure to deliver a bounce message always caused it to be frozen, even if
2458 there was an errors_to setting on the router. The errors_to setting is now
2459 respected.
2460
6f0c9a4f
PH
246135. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2462 canonical form (fully expanded) before being placed in
2463 $sender_host_address.
2464
33397d19
PH
246536. The table in the code that translates DNS record types into text (T_A to
2466 "A" for instance) was missing entries for NS and CNAME. It is just possible
2467 that this could have caused confusion if both these types were looked up
2468 for the same domain, because the text type is used as part of Exim's
2469 per-process caching. But the chance of anyone hitting this buglet seems
2470 very small.
2471
7bb56e1f
PH
247237. The dnsdb lookup has been extended in a number of ways.
2473
2474 (1) There is a new type, "zns", which walks up the domain tree until it
2475 finds some nameserver records. It should be used with care.
2476
ea3bc19b
PH
2477 (2) There is a new type, "mxh", which is like "mx" except that it returns
2478 just the host names, not the priorities.
2479
2480 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2481 looked up. The behaviour when one of the lookups defers can be
2482 controlled by a keyword.
7bb56e1f 2483
ea3bc19b 2484 (4) It is now possible to specify the separator character for use when
7bb56e1f 2485 multiple records are returned.
33397d19 2486
0bcb2a0e
PH
248738. The dnslists ACL condition has been extended: it is now possible to supply
2488 a list of IP addresses and/or domains to be looked up in a particular DNS
2489 domain.
2490
2ac0e484
PH
249139. Added log_selector=+queue_time_overall.
2492
4e1fde53
PH
249340. When running the queue in the test harness, wait just a tad after forking a
2494 delivery process, to get repeatability of debugging output.
2495
de365ded
PH
249641. Include certificate and key file names in error message when GnuTLS fails
2497 to set them up, because the GnuTLS error message doesn't include the name
2498 of the failing file when there is a problem reading it.
2499
f05da2e8
PH
250042. Allow both -bf and -bF in the same test run.
2501
d6453af2
PH
250243. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2503
f7b63901
PH
250444. The "Exiscan patch" is now merged into the mainline Exim source.
2505
250645. Sometimes the final signoff response after QUIT could fail to get
2507 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2508 < 0 before doing a fflush(). This bug looks as though it goes back to the
2509 introduction of TLS in release 3.20, but "sometimes" must have been rare
2510 because the tests only now provoked it.
2511
a444213a
PH
251246. Reset the locale to "C" after calling embedded Perl, in case it was changed
2513 (this can affect the format of dates).
2514
0ec020ea
PH
251547. exim_tidydb, when checking for the continued existence of a message for
2516 which it has found a message-specific retry record, was not finding
2517 messages that were in split spool directories. Consequently, it was
2518 deleting retry records that should have stayed in existence.
2519
b1206957
PH
252048. Steve fixed some bugs in eximstats.
2521
252249. The SPA authentication driver was not abandoning authentication and moving
2523 on to the next authenticator when an expansion was forced to fail,
2524 contradicting the general specification for all authenticators. Instead it
2525 was generating a temporary error. It now behaves as specified.
2526
26dd5a95
PH
252750. The default ordering of permitted cipher suites for GnuTLS was pessimal
2528 (the order specifies the preference for clients). The order is now AES256,
2529 AES128, 3DES, ARCFOUR128.
2530
343b2385
PH
253151. Small patch to Sieve code - explicitly set From: when generating an
2532 autoreply.
2533
1c5466b9
PH
253452. Exim crashed if a remote delivery caused a very long error message to be
2535 recorded - for instance if somebody sent an entire SpamAssassin report back
2536 as a large number of 550 error lines. This bug was coincidentally fixed by
2537 increasing the size of one of Exim's internal buffers (big_buffer) that
2538 happened as part of the Exiscan merge. However, to be on the safe side, I
2539 have made the code more robust (and fixed the comments that describe what
2540 is going on).
2541
55ee9ee3
PH
254253. Now that there can be additional text after "Completed" in log lines (if
2543 the queue_time_overall log selector is set), a one-byte patch to exigrep
2544 was needed to allow it to recognize "Completed" as not the last thing in
2545 the line.
2546
d38f8232
PH
254754. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2548 patch that reportedly fixes this has been added. I am not expert enough to
2549 create a test for it. This is what the patch creator wrote:
2550
2551 "I found a little strange behaviour of ldap code when working with
2552 Windows 2003 AD Domain, where users was placed in more than one
2553 Organization Units. When I tried to give exim partial DN, the exit code
2554 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2555 But simultaneously result of request was absolutely normal ldap result,
2556 so I produce this patch..."
2557
3295e65b
PH
2558 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2559 REFERENCE, so I have modified the code to exclude the patch when that macro
2560 is not defined.
2561
7102e136
PH
256255. Some experimental protocols are using DNS PTR records for new purposes. The
2563 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2564 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2565 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2566 CAN-2005-0021
7102e136 2567
3ca0ba97
PH
256856. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2569
c2bcbe20
PH
257057. Double the size of the debug message buffer (to 2048) so that more of very
2571 long debug lines gets shown.
2572
18ce445d
PH
257358. The exicyclog utility now does better if the number of log files to keep
2574 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2575
1f5b4c3d
PH
257659. Two changes related to the smtp_active_hostname option:
2577
2578 (1) $smtp_active_hostname is now available as a variable.
2579 (2) The default for smtp_banner uses $smtp_active_hostname instead
2580 of $primary_hostname.
2581
b975ba52
PH
258260. The host_aton() function is supposed to be passed a string that is known
2583 to be a valid IP address. However, in the case of IPv6 addresses, it was
2584 not checking this. This is a hostage to fortune. Exim now panics and dies
2585 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2586 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2587 components; fortuitously, this particular loophole had already been fixed
2588 by change 4.50/55 above.
2589
2590 If there are any other similar loopholes, the new check in host_aton()
2591 itself should stop them being exploited. The report I received stated that
2592 data on the command line could provoke the exploit when Exim was running as
2593 exim, but did not say which command line option was involved. All I could
2594 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2595 running as the user.
ea3a6f44 2596 CAN-2005-0021
85b87bc2
PH
2597
259861. There was a buffer overflow vulnerability in the SPA authentication code
2599 (which came originally from the Samba project). I have added a test to the
2600 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2601 CAN-2005-0022
b975ba52 2602
17ffcae7
PH
260362. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2604 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2605
d95f9fdb
PH
260663. The daemon start-up calls getloadavg() while still root for those OS that
2607 need the first call to be done as root, but it missed one case: when
2608 deliver_queue_load_max is set with deliver_drop_privilege. This is
2609 necessary for the benefit of the queue runner, because there is no re-exec
2610 when deliver_drop_privilege is set.
2611
86b8287f
PH
261264. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2613 This has been fixed.
2614
60dc5e56
PH
261565. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2616 was in use, was not putting the data itself into the right store pool;
2617 consequently, it could be overwritten for a subsequent message in the same
2618 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2619 the caching.)
2620
533244af
PH
262166. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2622
a5a28604
PH
262367. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2624 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2625 the function were treating the return as a boolean value, which happened to
2626 work because 0=false and not-0=true, but is not correct code.
2627
7e634d24
PH
262868. The host_aton() function was not handling scoped IPv6 addresses (those
2629 with, for example, "%eth0" on the end) correctly.
2630
3e11c26b
PH
263169. Fixed some compiler warnings in acl.c for the bitmaps specified with
2632 negated items (that is, ~something) in unsigned ints. Some compilers
2633 apparently mutter when there is no cast.
2634
6729cf78
PH
263570. If an address verification called from an ACL failed, and did not produce a
2636 user-specific message (i.e. there was only a "system" message), nothing was
2637 put in $acl_verify_message. In this situation, it now puts the system
2638 message there.
2639
00f00ca5
PH
264071. Change 4.23/11 added synchronization checking at the start of an SMTP
2641 session; change 4.31/43 added the unwanted input to the log line - except
2642 that it did not do this in the start of session case. It now does.
2643
c9bdd01c
PH
264472. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2645 This is wrong and can cause the other end to generate a synchronization
2646 error if it is another Exim or anything else that does the synchronization
2647 check. A QUIT command is no longer sent after a timeout.
2648
d43194df
PH
264973. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2650 during host lookups.
2651
fe5b5d0b
PH
265274. The defer_ok option of callout verification was not working if it was used
2653 when verifying addresses in header lines, that is, for this case:
2654
2655 verify = header_sender/callout=defer_ok
2656
76a2d7ba
PH
265775. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2658 those file descriptors could be used for SMTP connections. If anything
2659 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2660 could be sent to the SMTP client, causing chaos. The daemon now opens
2661 stdin, stdout, and stderr to /dev/null when it puts itself into the
2662 background.
2663
266476. Arrange for output from Perl's "warn" command to be written to Exim's main
2665 log by default. The user can override this with suitable Perl magic.
2666
04f7d5b9
PH
266777. The use of log_message on a "discard" ACL verb, which is supposed to add to
2668 the log message when discard triggers, was not working for the DATA ACL or
2669 for the non-SMTP ACL.
2670
bc60667e
PH
267178. Error message wording change in sieve.c.
2672
bb6e88ff
PH
267379. If smtp_accept_max_per_host was set, the number of connections could be
2674 restricted to fewer than expected, because the daemon was trying to set up
2675 a new connection before checking whether the processes handling previous
2676 connections had finished. The check for completed processes is now done
2677 earlier. On busy systems, this bug wouldn't be noticed because something
2678 else would have woken the daemon, and it would have reaped the completed
2679 process earlier.
2680
1e70f85b
PH
268180. If a message was submitted locally by a user whose login name contained one
2682 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2683 It caused a spool format error. I have fixed the spool reading code. A
2684 related problem was that the "from" clause in the Received: line became
2685 illegal because of the space(s). It is now covered by ${quote_local_part.
2686
268781. Included the latest eximstats from Steve (adds average sizes to HTML Top
2688 tables).
2689
4e01f9d6
PH
269082. Updated OS/Makefile-AIX as per message from Mike Meredith.
2691
1ee1cef2
PH
269283. Patch from Sieve maintainer to fix unterminated string problem in
2693 "vacation" handling.
2694
6e2b4ccc
PH
269584. Some minor changes to the Linux configuration files to help with other
2696 OS variants using glibc.
2697
8e669ac1
PH
269885. One more patch for Sieve to update vacation handling to latest spec.
2699
495ae4b0 2700
bbe902f0
PH
2701----------------------------------------------------
2702See the note above about the 4.44 and 4.50 releases.
2703----------------------------------------------------
2704
2705
2706Exim version 4.44
2707-----------------
2708
2709 1. Change 4.43/35 introduced a bug that caused file counts to be
2710 incorrectly computed when quota_filecount was set in an appendfile
2711 transport
2712
2713 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2714 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2715 place.
2716
2717 3. Give more explanation in the error message when the command for a transport
2718 filter fails to execute.
2719
2720 4. There are several places where Exim runs a non-Exim command in a
2721 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2722 was being done only for the command run by the queryprogram router. It is
2723 now done for all such subprocesses. The other cases are: ${run, transport
2724 filters, and the commands run by the lmtp and pipe transports.
2725
2726 5. Some older OS have a limit of 256 on the maximum number of file
2727 descriptors. Exim was using setrlimit() to set 1000 as a large value
2728 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2729 systems. I've change it so that if it can't get 1000, it tries for 256.
2730
2731 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2732 was an oversight, and furthermore, ever since the addition of extra
2733 controls (e.g. 4.43/32), the checks on when to allow different forms of
2734 "control" were broken. There should now be diagnostics for all cases when a
2735 control that does not make sense is encountered.
2736
2737 7. $recipients is now available in the predata ACL (oversight).
2738
2739 8. Tidy the search cache before the fork to do a delivery from a message
2740 received from the command line. Otherwise the child will trigger a lookup
2741 failure and thereby defer the delivery if it tries to use (for example) a
2742 cached ldap connection that the parent has called unbind on.
2743
2744 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2745 of $address_data from the recipient verification was clobbered by the
2746 sender verification.
2747
274810. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2749 was its contents. (It was OK if the option was not defined at all.)
2750
275111. A "Completed" log line is now written for messages that are removed from
2752 the spool by the -Mrm option.
2753
275412. $host_address is now set to the target address during the checking of
2755 ignore_target_hosts.
2756
275713. When checking ignore_target_hosts for an ipliteral router, no host name was
2758 being passed; this would have caused $sender_host_name to have been used if
2759 matching the list had actually called for a host name (not very likely,
2760 since this list is usually IP addresses). A host name is now passed as
2761 "[x.x.x.x]".
2762
276314. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2764 code that specifies a non-restarting handler (typically sigaction() in
2765 modern systems) in an attempt to fix a rare and obscure crash bug.
2766
276715. Narrowed the window for a race in the daemon that could cause it to ignore
2768 SIGCHLD signals. This is not a major problem, because they are used only to
2769 wake it up if nothing else does.
2770
277116. A malformed maildirsize file could cause Exim to calculate negative values
2772 for the mailbox size or file count. Odd effects could occur as a result.
2773 The maildirsize information is now recalculated if the size or filecount
2774 end up negative.
2775
277617. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2777 support for a long time. Removed HAVE_SYS_VFS_H.
2778
ea3a6f44 277918. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2780
278119. Allow an empty sender to be matched against a lookup in an address list.
2782 Previously the only cases considered were a regular expression, or an
2783 empty pattern.
2784
278520. Exim went into a mad DNS lookup loop when doing a callout where the
2786 host was specified on the transport, if the DNS lookup yielded more than
2787 one IP address.
2788
ea3a6f44
NM
278921. The RFC2047 encoding function was originally intended for short strings
2790 such as real names; it was not keeping to the 75-character limit for
2791 encoded words that the RFC imposes. It now respects the limit, and
2792 generates multiple encoded words if necessary. To be on the safe side, I
2793 have increased the buffer size for the ${rfc2047: expansion operator from
2794 1024 to 2048 bytes.
bbe902f0 2795
ea3a6f44
NM
279622. Failure to deliver a bounce message always caused it to be frozen, even if
2797 there was an errors_to setting on the router. The errors_to setting is now
2798 respected.
bbe902f0
PH
2799
280023. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2801 canonical form (fully expanded) before being placed in
2802 $sender_host_address.
2803
280424. Updated eximstats to version 1.33
2805
ea3a6f44
NM
280625. Include certificate and key file names in error message when GnuTLS fails
2807 to set them up, because the GnuTLS error message doesn't include the name
2808 of the failing file when there is a problem reading it.
bbe902f0
PH
2809
281026. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2811 As per change 25.
bbe902f0 2812
ea3a6f44
NM
281327. Reset the locale to "C" after calling embedded Perl, in case it was changed
2814 (this can affect the format of dates).
bbe902f0 2815
ea3a6f44
NM
281628. exim_tidydb, when checking for the continued existence of a message for
2817 which it has found a message-specific retry record, was not finding
2818 messages that were in split spool directories. Consequently, it was
2819 deleting retry records that should have stayed in existence.
bbe902f0
PH
2820
282129. eximstats updated to version 1.35
2822 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2823 1.35 - bugfix such that pie charts by volume are generated correctly
2824
ea3a6f44
NM
282530. The SPA authentication driver was not abandoning authentication and moving
2826 on to the next authenticator when an expansion was forced to fail,
2827 contradicting the general specification for all authenticators. Instead it
2828 was generating a temporary error. It now behaves as specified.
bbe902f0 2829
ea3a6f44
NM
283031. The default ordering of permitted cipher suites for GnuTLS was pessimal
2831 (the order specifies the preference for clients). The order is now AES256,
2832 AES128, 3DES, ARCFOUR128.
bbe902f0 2833
ea3a6f44
NM
283431. Small patch to Sieve code - explicitly set From: when generating an
2835 autoreply.
bbe902f0 2836
ea3a6f44
NM
283732. Exim crashed if a remote delivery caused a very long error message to be
2838 recorded - for instance if somebody sent an entire SpamAssassin report back
2839 as a large number of 550 error lines. This bug was coincidentally fixed by
2840 increasing the size of one of Exim's internal buffers (big_buffer) that
2841 happened as part of the Exiscan merge. However, to be on the safe side, I
2842 have made the code more robust (and fixed the comments that describe what
2843 is going on).
bbe902f0 2844
ea3a6f44
NM
284533. Some experimental protocols are using DNS PTR records for new purposes. The
2846 keys for these records are domain names, not reversed IP addresses. The
2847 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2848 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2849 CAN-2005-0021
2850
ea3a6f44
NM
285134. The host_aton() function is supposed to be passed a string that is known
2852 to be a valid IP address. However, in the case of IPv6 addresses, it was
2853 not checking this. This is a hostage to fortune. Exim now panics and dies
2854 if the condition is not met. A case was found where this could be provoked
2855 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2856 components; fortuitously, this particular loophole had already been fixed
2857 by change 4.50/55 or 4.44/33 above.
2858
2859 If there are any other similar loopholes, the new check in host_aton()
2860 itself should stop them being exploited. The report I received stated that
2861 data on the command line could provoke the exploit when Exim was running as
2862 exim, but did not say which command line option was involved. All I could
2863 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2864 running as the user.
bbe902f0
PH
2865 CAN-2005-0021
2866
ea3a6f44
NM
286735. There was a buffer overflow vulnerability in the SPA authentication code
2868 (which came originally from the Samba project). I have added a test to the
2869 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2870 CAN-2005-0022
2871
ea3a6f44
NM
287236. The daemon start-up calls getloadavg() while still root for those OS that
2873 need the first call to be done as root, but it missed one case: when
2874 deliver_queue_load_max is set with deliver_drop_privilege. This is
2875 necessary for the benefit of the queue runner, because there is no re-exec
2876 when deliver_drop_privilege is set.
bbe902f0 2877
ea3a6f44
NM
287837. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2879 was in use, was not putting the data itself into the right store pool;
2880 consequently, it could be overwritten for a subsequent message in the same
2881 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2882 the caching.)
bbe902f0 2883
ea3a6f44
NM
288438. Sometimes the final signoff response after QUIT could fail to get
2885 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2886 < 0 before doing a fflush(). This bug looks as though it goes back to the
2887 introduction of TLS in release 3.20, but "sometimes" must have been rare
2888 because the tests only now provoked it.
bbe902f0
PH
2889
2890
495ae4b0
PH
2891Exim version 4.43
2892-----------------
2893
2894 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2895 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2896 Now it returns an integer. A number of calls were still expecting a T/F
2897 return. Fortuitously, in all cases, the tests worked in OK situations,
2898 which is the norm. However, things would have gone wrong on any write
2899 failures on the smtp file descriptor. This function is used when sending
2900 messages over SMTP and also when doing verify callouts.
2901
2902 2. When Exim is called to do synchronous delivery of a locally submitted
2903 message (the -odf or -odi options), it no longer closes stderr before doing
2904 the delivery.
2905
2906 3. Implemented the mua_wrapper option.
2907
2908 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2909
2910 5. Implemented the functions header_remove(), header_testname(),
2911 header_add_at_position(), and receive_remove_recipient(), and exported them
2912 to local_scan().
2913
2914 6. If an ACL "warn" statement specified the addition of headers, Exim already
2915 inserted X-ACL-Warn: at the start if there was no header name. However, it
2916 was not making this test for the second and subsequent header lines if
2917 there were newlines in the string. This meant that an invalid header could
2918 be inserted if Exim was badly configured.
2919
2920 7. Allow an ACL "warn" statement to add header lines at the start or after all
2921 the Received: headers, as well as at the end.
2922
2923 8. Added the rcpt_4xx retry error code.
2924
2925 9. Added postmaster_mailfrom=xxx to callout verification option.
2926
292710. Added mailfrom=xxxx to the callout verification option, for verify=
2928 header_sender only.
2929
293011. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2931 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2932
293312. Inserted some casts to stop certain compilers warning when using pointer
2934 differences as field lengths or precisions in printf-type calls (mostly
2935 affecting debugging statements).
2936
293713. Added optional readline() support for -be (dynamically loaded).
2938
293914. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2940 same clock tick as a message's arrival, so that its received time was the
2941 same as the "first fail" time on the retry record, and that message
2942 remained on the queue past the ultimate address timeout, every queue runner
2943 would try a delivery (because it was past the ultimate address timeout) but
2944 after another failure, the ultimate address timeout, which should have then
2945 bounced the address, did not kick in. This was a "< instead of <=" error;
2946 in most cases the first failure would have been in the next clock tick
2947 after the received time, and all would be well.
2948
294915. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2950 being recognized when the domain list was tested by the match_domain
2951 condition in an expansion string.
2952
295316. Added the ${str2b64: operator.
2954
295517. Exim was always calling setrlimit() to set a large limit for the number of
2956 processes, without checking whether the existing limit was already
2957 adequate. (It did check for the limit on file descriptors.) Furthermore,
2958 errors from getrlimit() and setrlimit() were being ignored. Now they are
2959 logged to the main and panic logs, but Exim does carry on, to try to do its
2960 job under whatever limits there are.
2961
296218. Imported PCRE 5.0.
2963
296419. Trivial typo in log message " temporarily refused connection" (the leading
2965 space).
2966
296720. If the log selector return_path_on_delivery was set and an address was
2968 redirected to /dev/null, the delivery process crashed because it assumed
2969 that a return path would always be set for a "successful" delivery. In this
2970 case, the whole delivery is bypassed as an optimization, and therefore no
2971 return path is set.
2972
297321. Internal re-arrangement: the function for sending a challenge and reading
2974 a response while authentication was assuming a zero-terminated challenge
2975 string. It's now changed to take a pointer and a length, to allow for
2976 binary data in such strings.
2977
297822. Added the cyrus_sasl authenticator (code supplied by MBM).
2979
298023. Exim was not respecting finduser_retries when seeking the login of the
2981 uid under which it was called; it was always trying 10 times. (The default
2982 setting of finduser_retries is zero.) Also, it was sleeping after the final
2983 failure, which is pointless.
2984
298524. Implemented tls_on_connect_ports.
2986
298725. Implemented acl_smtp_predata.
2988
298926. If the domain in control=submission is set empty, Exim assumes that the
2990 authenticated id is a complete email address when it generates From: or
2991 Sender: header lines.
2992
299327. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2994 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2995 chown and chgrp in /bin and hostname in /usr/bin.
2996
299728. Exim was keeping the "process log" file open after each use, just as it
2998 does for the main log. This opens the possibility of it remaining open for
2999 long periods when the USR1 signal hits a daemon. Occasional processlog
3000 errors were reported, that could have been caused by this. Anyway, it seems
3001 much more sensible not to leave this file open at all, so that is what now
3002 happens.
3003
300429. The long-running daemon process does not normally write to the log once it
3005 has entered its main loop, and it closes the log before doing so. This is
3006 so that log files can straightforwardly be renamed and moved. However,
3007 there are a couple of unusual error situations where the daemon does write
3008 log entries, and I had neglected to close the log afterwards.
3009
301030. The text of an SMTP error response that was received during a remote
3011 delivery was being truncated at 512 bytes. This is too short for some of
3012 the long messages that one sometimes sees. I've increased the limit to
3013 1024.
3014
301531. It is now possible to make retry rules that apply only when a message has a
3016 specific sender, in particular, an empty sender.
3017
301832. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3019 it possible to be selective about when SMTP synchronization is enforced.
3020
302133. Added "control = caseful_local_part" and "control = "caselower_local_part".
3022
302332. Implemented hosts_connection_nolog.
3024
302533. Added an ACL for QUIT.
3026
302734. Setting "delay_warning=" to disable warnings was not working; it gave a
3028 syntax error.
3029
303035. Added mailbox_size and mailbox_filecount to appendfile.
3031
303236. Added control = no_multiline_responses to ACLs.
3033
303437. There was a bug in the logic of the code that waits for the clock to tick
3035 in the case where the clock went backwards by a substantial amount such
3036 that the microsecond fraction of "now" was more than the microsecond
3037 fraction of "then" (but the whole seconds number was less).
3038
303938. Added support for the libradius Radius client library this is found on
3040 FreeBSD (previously only the radiusclient library was supported).
3041
3042
3043Exim version 4.42
3044-----------------
3045
3046 1. When certain lookups returned multiple values in the form name=value, the
3047 quoting of the values was not always being done properly. Specifically:
3048 (a) If the value started with a double quote, but contained no whitespace,
3049 it was not quoted.
3050 (b) If the value contained whitespace other than a space character (i.e.
3051 tabs or newlines or carriage returns) it was not quoted.
3052 This fix has been applied to the mysql and pgsql lookups by writing a
3053 separate quoting function and calling it from the lookup code. The fix
3054 should probably also be applied to nisplus, ibase and oracle lookups, but
3055 since I cannot test any of those, I have not disturbed their existing code.
3056
3057 2. A hit in the callout cache for a specific address caused a log line with no
3058 reason for rejecting RCPT. Now it says "Previous (cached) callout
3059 verification failure".
3060
3061 3. There was an off-by-one bug in the queryprogram router. An over-long
3062 return line was truncated at 256 instead of 255 characters, thereby
3063 overflowing its buffer with the terminating zero. As well as fixing this, I
3064 have increased the buffer size to 1024 (and made a note to document this).
3065
3066 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3067 when Exim is waiting for an SMTP response from a remote server, Exim
3068 restarts its select() call on the socket, thereby resetting its timeout.
3069 This is not a problem when such interrupts are rare. Somebody set up a cron
3070 job to run exiwhat every 2 minutes, which is less than the normal select()
3071 timeout (5 or 10 minutes). This meant that the select() timeout never
3072 kicked in because it was always reset. I have fixed this by comparing the
3073 time when an interrupt arrives with the time at the start of the first call
3074 to select(). If more time than the timeout has elapsed, the interrupt is
3075 treated as a timeout.
3076
3077 5. Some internal re-factoring in preparation for the addition of Sieve
3078 extensions (by MH). In particular, the "personal" test is moved to a
3079 separate function, and given an option for scanning Cc: and Bcc: (which is
3080 not set for Exim filters).
3081
3082 6. When Exim created an email address using the login of the caller as the
3083 local part (e.g. when creating a From: or Sender: header line), it was not
3084 quoting the local part when it contained special characters such as @.
3085
3086 7. Installed new OpenBSD configuration files.
3087
3088 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3089 try to make them clearer.
3090
3091 9. Callout options, other than the timeout value, were being ignored when
3092 verifying sender addresses in header lines. For example, when using
3093
3094 verify = header_sender/callout=no_cache
3095
3096 the cache was (incorrectly) being used.
3097
309810. Added a missing instance of ${EXE} to the exim_install script; this affects
3099 only the Cygwin environment.
3100
310111. When return_path_on_delivery was set as a log selector, if different remote
3102 addresses in the same message used different return paths and parallel
3103 remote delivery occurred, the wrong values would sometimes be logged.
3104 (Whenever a remote delivery process finished, the return path value from
3105 the most recently started remote delivery process was logged.)
3106
310712. RFC 3848 specifies standard names for the "with" phrase in Received: header
3108 lines when AUTH and/or TLS are in use. This is the "received protocol"
3109 field. Exim used to use "asmtp" for authenticated SMTP, without any
3110 indication (in the protocol name) for TLS use. Now it follows the RFC and
3111 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3112 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3113 names appear in log lines as well as in Received: header lines.
3114
311513. Installed MH's patches for Sieve to add the "copy" and "vacation"
3116 extensions, and comparison tests, and to fix some bugs.
3117
311814. Changes to the "personal" filter test:
3119
3120 (1) The test was buggy in that it was just doing the equivalent of
3121 "contains" tests on header lines. For example, if a user's address was
3122 anne@some.where, the "personal" test would incorrectly be true for
3123
3124 To: susanne@some.where
3125
3126 This test is now done by extracting each address from the header in turn,
3127 and checking the entire address. Other tests that are part of "personal"
3128 are now done using regular expressions (for example, to check local parts
3129 of addresses in From: header lines).
3130
3131 (2) The list of non-personal local parts in From: addresses has been
3132 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3133 taken from the Sieve specification recommendations.
3134
3135 (3) If the message contains any header line starting with "List-" it is
3136 treated as non-personal.
3137
3138 (4) The test for "circular" in the Subject: header line has been removed
3139 because it now seems ill-conceived.
3140
314115. Minor typos in src/EDITME comments corrected.
3142
314316. Installed latest exipick from John Jetmore.
3144
314517. If headers_add on a router specified a text string that was too long for
3146 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3147 of string_sprintf() is now avoided.
3148
314918. $message_body_size was not set (it was always zero) when running the DATA
3150 ACL and the local_scan() function.
3151
315219. For the "mail" command in an Exim filter, no default was being set for
3153 the once_repeat time, causing a random time value to be used if "once" was
3154 specified. (If the value happened to be <= 0, no repeat happened.) The
3155 default is now 0s, meaning "never repeat". The "vacation" command was OK
3156 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3157 (I found it when inspecting the code).
3158
315920. There is now an overall timeout for performing a callout verification. It
3160 defaults to 4 times the callout timeout, which applies to individual SMTP
3161 commands during the callout. The overall timeout applies when there is more
3162 than one host that can be tried. The timeout is checked before trying the
3163 next host. This prevents very long delays if there are a large number of
3164 hosts and all are timing out (e.g. when the network connections are timing
3165 out). The value of the overall timeout can be changed by specifying an
3166 additional sub-option for "callout", called "maxwait". For example:
3167
3168 verify = sender/callout=5s,maxwait=20s
3169
317021. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3171 to the end before writing, but this should make it even safer).
3172
317322. Exim was forgetting that it had advertised PIPELINING for the second and
3174 subsequent messages on an SMTP connection. It was also not resetting its
3175 memory on STARTTLS and an internal HELO.
3176
317723. When Exim logs an SMTP synchronization error within a session, it now
3178 records whether PIPELINING has been advertised or not.
3179
318024. Added 3 instances of "(long int)" casts to time_t variables that were being
3181 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3182 rather than long int.
3183
318425. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3185
318626. Added the never_mail option to autoreply.
3187
3188
3189Exim version 4.41
3190-----------------
3191
3192 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3193 crash if the getsockname() call failed; this can happen if a connection is
3194 closed very soon after it is established. The problem was simply in the
3195 order in which certain operations were done, causing Exim to try to write
3196 to the SMTP stream before it had set up the file descriptor. The bug has
3197 been fixed by making things happen in the correct order.
3198
3199
3200Exim version 4.40
3201-----------------
3202
3203 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3204 before the connection was closed, thus losing the rejection response.
3205
3206 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3207 some early Solaris releases, but causes trouble in current releases where
3208 socklen_t is defined.
3209
3210 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3211 always exist.
3212
3213 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3214 configured.
3215
3216 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3217 that releasing the top of it at the end releases what was used for sub-
3218 expansions (unless the block got too big). However, discard this block if
3219 the first thing is a variable or header, so that we can use its block when
3220 it is dynamic (useful for very large $message_headers, for example).
3221
3222 6. Lookups now cache *every* query, not just the most recent. A new, separate
3223 store pool is used for this. It can be recovered when all lookup caches are
3224 flushed. Lookups now release memory at the end of their result strings.
3225 This has involved some general refactoring of the lookup sources.
3226
3227 7. Some code has been added to the store_xxx() functions to reduce the amount
3228 of flapping under certain conditions.
3229
3230 8. log_incoming_interface used to affect only the <= reception log lines. Now
3231 it causes the local interface and port to be added to several more SMTP log
3232 lines, for example "SMTP connection from", and rejection lines.
3233
3234 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3235
323610. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3237
323811. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3239 could be overwritten at the end of the current message (or the start of a
3240 new message if it was set in a HELO ACL). The value is now preserved for
3241 the duration of the SMTP connection.
3242
324312. If a transport had a headers_rewrite setting, and a matching header line
3244 contained an unqualified address, that address was qualified, even if it
3245 did not match any rewriting rules. The underlying bug was that the values
3246 of the flags that permit the existence of unqualified sender and recipient
3247 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3248 non-local messages, and by -bnq for local messages) were not being
3249 preserved with the message after it was received.
3250
325113. When Exim was logging an SMTP synchronization error, it could sometimes log
3252 "next input=" as part of the text comprising the host identity instead of
3253 the correct text. The code was using the same buffer for two different
3254 strings. However, depending on which order the printing function evaluated
3255 its arguments, the bug did not always show up. Under Linux, for example, my
3256 test suite worked just fine.
3257
325814. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3259 doesn't work with some older versions of Perl. It has been changed to "my",
3260 which in any case is probably the better facility to use.
3261
326215. A really picky compiler found some instances of statements for creating
3263 error messages that either had too many or two few arguments for the format
3264 string.
3265
326616. The size of the buffer for calls to the DNS resolver has been increased
3267 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3268 for addresses that have a lot of PTR records. This alleviates a problem; it
3269 does not fully solve it.
3270
327117. A dnsdb lookup for PTR records that receives more data than will fit in the
3272 buffer now truncates the list and logs the incident, which is the same
3273 action as happens when Exim is looking up a host name and its aliases.
3274 Previously in this situation something unpredictable would happen;
3275 sometimes it was "internal error: store_reset failed".
3276
327718. If a server dropped the connection unexpectedly when an Exim client was
3278 using GnuTLS and trying to read a response, the client delivery process
3279 crashed while trying to generate an error log message.
3280
328119. If a "warn" verb in an ACL added multiple headers to a message in a single
3282 string, for example:
3283
3284 warn message = H1: something\nH2: something
3285
3286 the text was added as a single header line from Exim's point of view
3287 though it ended up OK in the delivered message. However, searching for the
3288 second and subsequent header lines using $h_h2: did not work. This has been
3289 fixed. Similarly, if a system filter added multiple headers in this way,
3290 the routers could not see them.
3291
329220. Expanded the error message when iplsearch is called with an invalid key to
3293 suggest using net-iplsearch in a host list.
3294
329521. When running tests using -bh, any delays imposed by "delay" modifiers in
3296 ACLs are no longer actually imposed (and a message to that effect is
3297 output).
3298
329922. If a "gecos" field in a passwd entry contained escaped characters, in
3300 particular, if it contained a \" sequence, Exim got it wrong when building
3301 a From: or a Sender: header from that name. A second bug also caused
3302 incorrect handling when an unquoted " was present following a character
3303 that needed quoting.
3304
330523. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3306 was not being matched caselessly.
3307
330824. Arranged for all hyphens in the exim.8 source to be escaped with
3309 backslashes.
3310
331125. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3312 properly. Recipient callout cache records were still being keyed to include
3313 the sender, even when use_sender was set false. This led to far more
3314 callouts that were necessary. The sender is no longer included in the key
3315 when use_sender is false.
3316
331726. Added "control = submission" modifier to ACLs.
3318
331927. Added the ${base62d: operator to decode base 62 numbers.
3320
332128. dnsdb lookups can now access SRV records.
3322
332329. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3324 the configuration file.
3325
332630. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3327 (-v) mode. This makes the output for a verbose queue run more intelligible.
3328
332931. Added a use_postmaster feature to recipient callouts.
3330
333132. Added the $body_zerocount variable, containing the number of binary zero
3332 bytes in the message body.
3333
333433. The time of last modification of the "new" subdirectory is now used as the
3335 "mailbox time last read" when there is a quota error for a maildir
3336 delivery.
3337
333834. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3339
334035. Added +ignore_unknown as a special item in host lists.
3341
334236. Code for decoding IPv6 addresses in host lists is now included, even if
3343 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3344 address was recognized as an IP address, but was then not correctly decoded
3345 into binary, causing unexpected and incorrect effects when compared with
3346 another IP address.
3347
3348
3349Exim version 4.34
3350-----------------
3351
3352 1. Very minor rewording of debugging text in manualroute to say "list of
3353 hosts" instead of "hostlist".
3354
3355 2. If verify=header_syntax was set, and a header line with an unqualified
3356 address (no domain) and a large number of spaces between the end of the
3357 name and the colon was received, the reception process suffered a buffer
3358 overflow, and (when I tested it) crashed. This was caused by some obsolete
3359 code that should have been removed. The fix is to remove it!
3360
3361 3. When running in the test harness, delay a bit after writing a bounce
3362 message to get a bit more predictability in the log output.
3363
3364 4. Added a call to search_tidyup() just before forking a reception process. In
3365 theory, someone could use a lookup in the expansion of smtp_accept_max_
3366 per_host which, without the tidyup, could leave open a database connection.
3367
3368 5. Added the variables $recipient_data and $sender_data which get set from a
3369 lookup success in an ACL "recipients" or "senders" condition, or a router
3370 "senders" option, similar to $domain_data and $local_part_data.
3371
3372 6. Moved the writing of debug_print from before to after the "senders" test
3373 for routers.
3374
3375 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3376 problems for message scanning, either using a data ACL, or using
3377 local_scan() because the Received: header was not generated till after they
3378 were called (in order to set the time as the time of reception completion).
3379 I have revised the way this works. The header is now generated after the
3380 body is received, but before the ACL or local_scan() are called. After they
3381 are run, the timestamp in the header is updated.
3382
3383
3384Exim version 4.33
3385-----------------
3386
3387 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3388 before starting a queue runner without re-exec. This happened only when
3389 deliver_drop_privilege was set or when the Exim user was set to root. The
3390 effect of the bug was that timeouts during subsequent deliveries caused
3391 crashes instead of being properly handled. The handler is now left at its
3392 default (and expected) setting.
3393
3394 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3395 message, again when deliver_drop_privilege is set or Exim is run as root.
3396 The bug described in (1) was not present in this case, but the tidying up
3397 of the other signals was missing. I have made the two cases consistent.
3398
3399 3. The ignore_target_hosts setting on a manualroute router was being ignored
3400 for hosts that were looked up using the /MX notation.
3401
3402 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3403 in domain lists.
3404
3405 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3406 operated on the sender address. After changing the $sender_address to <>
3407 for the sender address verify, Exim was re-instated it as the original
3408 (before rewriting) address, but remembering that it had rewritten it, so it
3409 wasn't rewriting it again. This bug also had the effect of breaking the
3410 sender address verification caching when the sender address was rewritten.
3411
3412 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3413 This has been changed so that if the ip literal address matches
3414 ignore_target_hosts, the router declines.
3415
3416 7. Added expansion conditions match_domain, match_address, and match_local_
3417 part (NOT match_host).
3418
3419 8. The placeholder for the Received: header didn't have a length field set.
3420
3421 9. Added code to Exim itself and to exim_lock to test for a specific race
3422 condition that could lead to file corruption when using MBX delivery. The
3423 issue is with the lockfile that is created in /tmp. If this file is removed
3424 after a process has opened it but before that process has acquired a lock,
3425 there is the potential for a second process to recreate the file and also
3426 acquire a lock. This could lead to two Exim processes writing to the file
3427 at the same time. The added code performs the same test as UW imapd; it
3428 checks after acquiring the lock that its file descriptor still refers to
3429 the same named file.
3430
343110. The buffer for building added header lines was of fixed size, 8192 bytes.
3432 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3433 when Exim is built.
3434
343511. Added the smtp_active_hostname option. If used, this will typically be made
3436 to depend on the incoming interface address. Because $interface_address is
3437 not set up until the daemon has forked a reception process, error responses
3438 that can happen earlier (such as "too many connections") no longer contain
3439 a host name.
3440
344112. If an expansion in a condition on a "warn" statement fails because a lookup
3442 defers, the "warn" statement is abandoned, and the next ACL statement is
3443 processed. Previously this caused the whole ACL to be aborted.
3444
344513. Added the iplsearch lookup type.
3446
344714. Added ident_timeout as a log selector.
3448
344915. Added tls_certificate_verified as a log selector.
3450
345116. Added a global option tls_require_ciphers (compare the smtp transport
3452 option of the same name). This controls incoming TLS connections.
3453
345417. I finally figured out how to make tls_require_ciphers do a similar thing
3455 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3456 before starting the TLS session.
3457
345818. Tabs are now shown as \t in -bP output.
3459
346019. If the log selector return_path_on_delivery was set, Exim crashed when
3461 bouncing a message because it had too many Received: header lines.
3462
346320. If two routers both had headers_remove settings, and the first one included
3464 a superfluous trailing colon, the final name in the first list and the
3465 first name in the second list were incorrectly joined into one item (with a
3466 colon in the middle).
3467
3468
3469Exim version 4.32
3470-----------------
3471
3472 1. Added -C and -D options to the exinext utility, mainly to make it easier
3473 to include in the automated testing, but these could be helpful when
3474 multiple configurations are in use.
3475
3476 2. The exinext utility was not formatting the output nicely when there was
3477 an alternate port involved in the retry record key, nor when there was a
3478 message id as well (for retries that were specific to a specific message
3479 and a specific host). It was also confused by IPv6 addresses, because of
3480 the additional colons they contain. I have fixed the IPv4 problem, and
3481 patched it up to do a reasonable job for IPv6.
3482
3483 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3484 delivery, the log line now contains "pipelined" if PIPELINING was used.
3485
3486 4. An SMTP transport process used to panic and die if the bind() call to set
3487 an explicit outgoing interface failed. This has been changed; it is now
3488 treated in the same way as a connect() failure.
3489
3490 5. A reference to $sender_host_name in the part of a conditional expansion
3491 that was being skipped was still causing a DNS lookup. This no longer
3492 occurs.
3493
3494 6. The def: expansion condition was not recognizing references to header lines
3495 that used bh_ and bheader_.
3496
3497 7. Added the _cache feature to named lists.
3498
3499 8. The code for checking quota_filecount in the appendfile transport was
3500 allowing one more file than it should have been.
3501
3502 9. For compatibility with Sendmail, the command line option
3503
3504 -prval:sval
3505
3506 is equivalent to
3507
3508 -oMr rval -oMs sval
3509
3510 and sets the incoming protocol and host name (for trusted callers). The
3511 host name and its colon can be omitted when only the protocol is to be set.
3512 Note the Exim already has two private options, -pd and -ps, that refer to
3513 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3514 "s", but I don't think that's a major issue.
3515
351610. A number of refactoring changes to the code, none of which should affect
3517 Exim's behaviour:
3518
3519 (a) The number of logging options was getting close to filling up the
3520 32-bit word that was used as a bit map. I have split them into two classes:
3521 those that are passed in the argument to log_write(), and those that are
3522 only ever tested independently outside of that function. These are now in
3523 separate 32-bit words, so there is plenty of room for expansion again.
3524 There is no change in the user interface or the logging behaviour.
3525
3526 (b) When building, for example, log lines, the code previously used a
3527 macro that called string_cat() twice, in order to add two strings. This is
3528 not really sufficiently general. Furthermore, there was one instance where
3529 it was actually wrong because one of the argument was used twice, and in
3530 one call a function was used. (As it happened, calling the function twice
3531 did not affect the overall behaviour.) The macro has been replaced by a
3532 function that can join an arbitrary number of extra strings onto a growing
3533 string.
3534
3535 (c) The code for expansion conditions now uses a table and a binary chop
3536 instead of a serial search (which was left over from when there were very
3537 few conditions). Also, it now recognizes conditions like "pam" even when