Correct name of the selector is received_recipients, not log_recipients.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
e2803e40 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.551 2008/08/07 11:05:03 fanf2 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
NM
6Exim version 4.70
7-----------------
8
cdd3bb85
TK
9TK/01 Added patch by Johannes Berg that expands the main option
10 "spamd_servers" if it starts with a dollar sign.
11
12TK/02 Write list of recipients to X-Envelope-Sender header when building
13 the mbox-format spool file for content scanning (suggested by Jakob
14 Hirsch)
15
16TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
17 (http://www.dcc-servers.net/) support via dccifd. Activated by
18 setting EXPERIMENTAL_DCC=yes in Local/Makefile. Check out
19 experimental_spec.txt for more documentation.
20
21TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
22 by Mark Daniel Reidel <mr@df.eu>.
23
210f147e
NM
24NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
25 When building exim an external PCRE library is now needed -
26 PCRE is a system library on the majority of modern systems.
27 See entry on PCRE_LIBS in EDITME file.
28
deafd5b3
NM
29NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
30 conversation. Added nologin parameter to request.
31 Patch contributed by Kirill Miazine
32
089793a4
TF
33TF/01 Do not log submission mode rewrites if they do not change the address.
34
5f16ca82
TF
35TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
36
dae9d94e
NM
37NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
38 log files in place. Contributed by Roberto Lima
39
3f0da4d0
NM
40NM/04 Bugzilla 667: close socket used by dovecot authenticator
41
06864c44
TF
42TF/03 Bugzilla 615: When checking the local_parts router precondition
43 after a local_part_suffix or local_part_prefix option, Exim now
44 does not use the address's named list lookup cache, since this
45 contains cached lookups for the whole local part.
46
65a7d8c3
NM
47NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
48 Robert Millan. Documentation is in experimental-spec.txt
49
23510047 50TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 51
5f28a6e8
NM
52NM/05 Bugzilla 437: Prevent Maildix aux files being created with mode 000
53
6c588e74
NM
54NM/05 Bugzilla 598: Improvedment to Dovecot authenticator handling.
55 Patch provided by Jan Srzednicki
56
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
deafd5b3 65
47db1125
NM
66Exim version 4.69
67-----------------
68
4b3504d0
TK
69TK/01 Add preliminary DKIM support. Currently requires a forked version of
70 ALT-N's libdkim that I have put here:
71 http://duncanthrax.net/exim-experimental/
72
73 Note to Michael Haardt: I had to rename some vars in sieve.c. They
74 were called 'true' and it seems that C99 defines that as a reserved
75 keyword to be used with 'bool' variable types. That means you could
76 not include C99-style headers which use bools without triggering
77 build errors in sieve.c.
78
81ea09ca
NM
79NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
80 as mailq or other aliases. Changed the --help handling significantly
81 to do whats expected. exim_usage() emits usage/help information.
82
f13cddcb
SC
83SC/01 Added the -bylocaldomain option to eximstats.
84
8ad076b2
NM
85NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
86
a843aaa6
NM
87NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
88
47db1125
NM
89NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
90
91
eb4c0de6
PH
92Exim version 4.68
93-----------------
94
95PH/01 Another patch from the Sieve maintainer.
96
6a3bceb1
PH
97PH/02 When an IPv6 address is converted to a string for single-key lookup
98 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
99 dots are used instead of colons so that keys in lsearch files need not
100 contain colons. This was done some time before quoting was made available
101 in lsearch files. However, iplsearch files do require colons in IPv6 keys
102 (notated using the quote facility) so as to distinguish them from IPv4
103 keys. This meant that lookups for IP addresses in host lists did not work
104 for iplsearch lookups.
105
106 This has been fixed by arranging for IPv6 addresses to be expressed with
107 colons if the lookup type is iplsearch. This is not incompatible, because
108 previously such lookups could never work.
109
110 The situation is now rather anomolous, since one *can* have colons in
111 ordinary lsearch keys. However, making the change in all cases is
112 incompatible and would probably break a number of configurations.
113
2e30fa9d
TK
114TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
115 version.
116
0806a9c5
MH
117MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
118 conversion specification without a maximum field width, thereby enabling
119 a rogue spamd server to cause a buffer overflow. While nobody in their
120 right mind would setup Exim to query an untrusted spamd server, an
121 attacker that gains access to a server running spamd could potentially
122 exploit this vulnerability to run arbitrary code as the Exim user.
123
ae276964
TK
124TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
125 $primary_hostname instead of what libspf2 thinks the hosts name is.
126
0f2cbd1b
MH
127MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
128 a directory entry by the name of the lookup key. Previously, if a
129 symlink pointed to a non-existing file or a file in a directory that
130 Exim lacked permissions to read, a lookup for a key matching that
131 symlink would fail. Now it is enough that a matching directory entry
132 exists, symlink or not. (Bugzilla 503.)
133
2b85bce7
PH
134PH/03 The body_linecount and body_zerocount variables are now exported in the
135 local_scan API.
136
93655c46
PH
137PH/04 Added the $dnslist_matched variable.
138
6c512171
PH
139PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
140 This means they are set thereafter only if the connection becomes
141 encrypted.
142
143PH/06 Added the client_condition to authenticators so that some can be skipped
144 by clients under certain conditions.
145
aa6dc513
PH
146PH/07 The error message for a badly-placed control=no_multiline_responses left
147 "_responses" off the end of the name.
148
a96603a0
PH
149PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
150
8f240103
PH
151PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
152 (without spaces) instead of just copying the configuration text.
153
154PH/10 Added the /noupdate option to the ratelimit ACL condition.
155
d677b2f2
PH
156PH/11 Added $max_received_linelength.
157
d52120f2
PH
158PH/12 Added +ignore_defer and +include_defer to host lists.
159
64f2600a
PH
160PH/13 Installed PCRE version 7.2. This needed some changes because of the new
161 way in which PCRE > 7.0 is built.
162
8669f003
PH
163PH/14 Implemented queue_only_load_latch.
164
a4dc33a8
PH
165PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
166 MAIL command. The effect was to mangle the value on 64-bit systems.
167
d6a60c0f
PH
168PH/16 Another patch from the Sieve maintainer.
169
8f128379
PH
170PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
171
8932dffe
PH
172PH/18 If a system quota error occurred while trying to create the file for
173 a maildir delivery, the message "Mailbox is full" was not appended to the
174 bounce if the delivery eventually timed out. Change 4.67/27 below applied
175 only to a quota excession during the actual writing of the file.
d6a60c0f 176
ddea74fa 177PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
178 characters?) which causes problems in log lines. The DN values are now
179 passed through string_printing() before being added to log lines.
180
ddea74fa 181PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
182 and InterBase are left for another time.)
183
ddea74fa
PH
184PH/21 Added message_body_newlines option.
185
ce9f225c
PH
186PH/22 Guard against possible overflow in moan_check_errorcopy().
187
19897d52
PH
188PH/23 POSIX allows open() to be a macro; guard against that.
189
bc64a74d
PH
190PH/24 If the recipient of an error message contained an @ in the local part
191 (suitably quoted, of course), incorrect values were put in $domain and
192 $local_part during the evaluation of errors_copy.
193
eb4c0de6 194
b4ed4da0
PH
195Exim version 4.67
196-----------------
197
22ad45c9
MH
198MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
199 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
200 Jan Srzednicki.
201
b4ed4da0
PH
202PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
203 issue a MAIL command.
204
431b7361
PH
205PH/02 In an ACL statement such as
206
207 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
208
209 if a client was not listed at all, or was listed with a value other than
210 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
211 the condition was not true (as it should be), so access was not denied.
212 The bug was that the ! inversion was incorrectly passed on to the second
213 item. This has been fixed.
214
215PH/03 Added additional dnslists conditions == and =& which are different from
216 = and & when the dns lookup returns more than one IP address.
217
83da1223
PH
218PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
219 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
220
54fc8428
PH
221PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
222 FSYNC, which compiles an option called disable_fsync that allows for
223 bypassing fsync(). The documentation is heavily laced with warnings.
224
34c5e8dd
SC
225SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
226
bbe15da8
PH
227PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
228 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
229 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
230 including adding "make clean"; (3) Added -fPIC when compiling the test
231 dynamically loaded module, to get rid of a warning.
232
0e8a9471
MH
233MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
234 message fails, move_frozen_messages = true and ignore_bounce_errors_after
235 = 0s. The bug is otherwise harmless.
236
f0872424
PH
237PH/07 There was a bug in the dovecot authenticator such that the value of
238 $auth1 could be overwritten, and so not correctly preserved, after a
239 successful authentication. This usually meant that the value preserved by
240 the server_setid option was incorrect.
241
b01dd148
PH
242PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
243
6bf342e1
PH
244PH/09 Installed PCRE release 7.0.
245
273f34d0
PH
246PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
247 run for batched SMTP input. It is now run at the start of every message
248 in the batch. While fixing this I discovered that the process information
249 (output by running exiwhat) was not always getting set for -bs and -bS
250 input. This is fixed, and it now also says "batched" for BSMTP.
251
cf8b11a5
PH
252PH/11 Added control=no_pipelining.
253
41c7c167
PH
254PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
255 patch, slightly modified), and move the expansion of helo_data till after
256 the connection is made in the smtp transport (so it can use these
257 values).
258
9c57cbc0
PH
259PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
260
f3f065bb
PH
261PH/14 Added log_selector = +pid.
262
047bdd8c
PH
263PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
264
0ce9abe6
PH
265PH/16 Add ${if forany and ${if forall.
266
0e22dfd1
PH
267PH/17 Added dsn_from option to vary the From: line in DSNs.
268
4c590bd1
PH
269PH/18 Flush SMTP output before performing a callout, unless control =
270 no_callout_flush is set.
271
09945f1e
PH
272PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
273 was true (the default) a successful delivery failed to delete the retry
274 item, thus causing premature timeout of the address. The bug is now
275 fixed.
276
c51b8e75
PH
277PH/20 Added hosts_avoid_pipelining to the smtp transport.
278
e28326d8
PH
279PH/21 Long custom messages for fakedefer and fakereject are now split up
280 into multiline reponses in the same way that messages for "deny" and
281 other ACL rejections are.
282
75b1493f
PH
283PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
284 with slight modification.
285
7c5214ec
PH
286PH/23 Applied sieve patches from the maintainer "tracking the latest notify
287 draft, changing the syntax and factoring some duplicate code".
288
4311097e
PH
289PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
290 for deliveries of the second and subsequent messages over the same SMTP
291 connection.
292
29f89cad
PH
293PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
294 ${reduce, with only minor "tidies".
295
5e687460
SC
296SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
297
c3611384
PH
298PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
299 expansion side effects.
300
5a11a7b4
PH
301PH/27 When a message times out after an over-quota error from an Exim-imposed
302 quota, the bounce message says "mailbox is full". This message was not
303 being given when it was a system quota that was exceeded. It now should
304 be the same.
305
0e20aff9
MH
306MH/03 Made $recipients available in local_scan(). local_scan() already has
307 better access to the recipient list through recipients_list[], but
308 $recipients can be useful in postmaster-provided expansion strings.
309
ca86f471
PH
310PH/28 The $smtp_command and $smtp_command_argument variables were not correct
311 in the case of a MAIL command with additional options following the
312 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
313 were accidentally chopped off.
314
a14e5636
PH
315PH/29 SMTP synchronization checks are implemented when a command is read -
316 there is a check that no more input is waiting when there shouldn't be
317 any. However, for some commands, a delay in an ACL can mean that it is
318 some time before the response is written. In this time, more input might
319 arrive, invalidly. So now there are extra checks after an ACL has run for
320 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
321 pipelining has not been advertised.
322
ec95d1a6
PH
323PH/30 MH's patch to allow iscntrl() characters to be list separators.
324
42855d71
PH
325PH/31 Unlike :fail:, a custom message specified with :defer: was not being
326 returned in the SMTP response when smtp_return_error_details was false.
327 This has been fixed.
328
57c2c631
PH
329PH/32 Change the Dovecot authenticator to use read() and write() on the socket
330 instead of the C I/O that was originally supplied, because problems were
331 reported on Solaris.
332
58c01c94
PH
333PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
334 Exim which did not show up earlier: it was assuming that a call to
335 SSL_CTX_set_info_callback() might give an error value. In fact, there is
336 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
337 was a macro that became an assignment, so it seemed to work. This has
338 changed to a proper function call with a void return, hence the compile
339 error. Exim's code has been fixed.
340
dee5a20a
PH
341PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
342 cpus.
343
d2ee6114
PH
344PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
345
b2d5182b
PH
346PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
347
79749a79
PH
348PH/37 If a message is not accepted after it has had an id assigned (e.g.
349 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
350 "Completed" line in the log. When some messages of this type were
351 selected by exigrep, they were listed as "not completed". Others were
352 picked up by some special patterns. I have improved the selection
353 criteria to be more general.
79749a79 354
c456d9bb
PH
355PH/38 The host_find_failed option in the manualroute router can now be set
356 to "ignore", to completely ignore a host whose IP address cannot be
357 found. If all hosts are ignored, the behaviour is controlled by the new
358 host_all_ignored option.
359
cd9868ec
PH
360PH/39 In a list of hosts for manualroute, if one item (either because of multi-
361 homing or because of multiple MX records with /mx) generated more than
362 one IP address, and the following item turned out to be the local host,
363 all the secondary addresses of the first item were incorrectly removed
364 from the list, along with the local host and any following hosts (which
365 is what is supposed to happen).
366
ebeaf996
PH
367PH/40 When Exim receives a message, it writes the login name, uid, and gid of
368 whoever called Exim into the -H file. In the case of the daemon it was
369 behaving confusingly. When first started, it used values for whoever
370 started the daemon, but after a SIGHUP it used the Exim user (because it
371 calls itself on a restart). I have changed the code so that it now always
372 uses the Exim user.
373
2679d413
PH
374PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
375 message are rejected with the same error (e.g. no authentication or bad
376 sender address), and a DATA command is nevertheless sent (as can happen
377 with PIPELINING or a stupid MUA), the error message that was given to the
378 RCPT commands is included in the rejection of the DATA command. This is
379 intended to be helpful for MUAs that show only the final error to their
380 users.
381
84024b72
PH
382PH/42 Another patch from the Sieve maintainer.
383
8005d38e
SC
384SC/02 Eximstats - Differentiate between permanent and temporary rejects.
385 Eximstats - Fixed some broken HTML links and added missing column headers
386 (Jez Hancock).
387 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
388 columns for Rejects, Temp Rejects, Ham, and Spam rows.
389
3298c6c6
SC
390SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
391
a43a27c5
PH
392PH/43 Yet another patch from the Sieve maintainer.
393
58eb016e 394PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
395 the response to the final '.' that terminates a message, but only in the
396 case where the client has not sent further data following the '.'
397 (unfortunately, this is allowed). However, in many cases there won't be
398 any further data because there won't be any more messages to send. A call
399 to select() can be used: if it shows that the input is "ready", there is
400 either input waiting, or the socket has been closed. An attempt to read
401 the next input character can distinguish the two cases. Previously, Exim
58eb016e 402 would have sent an OK response which the client would never have see.
563b63fa
PH
403 This could lead to message repetition. This fix should cure that, at
404 least in a lot of common cases.
58eb016e 405
b43a74ea
PH
406PH/45 Do not advertise STARTTLS in response to HELP unless it would be
407 advertised in response to EHLO.
408
b4ed4da0 409
5dd1517f
PH
410Exim version 4.66
411-----------------
412
413PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
414 fixed by 4.65/MH/01 (is this a record?) are fixed:
415
416 (i) An empty string was always treated as zero by the numeric comparison
417 operators. This behaviour has been restored.
418
419 (ii) It is documented that the numeric comparison operators always treat
420 their arguments as decimal numbers. This was broken in that numbers
421 starting with 0 were being interpreted as octal.
422
423 While fixing these problems I realized that there was another issue that
424 hadn't been noticed. Values of message_size_limit (both the global option
425 and the transport option) were treated as octal if they started with 0.
426 The documentation was vague. These values are now always treated as
427 decimal, and I will make that clear in the documentation.
428
429
93cfa765
TK
430Exim version 4.65
431-----------------
432
433TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
434 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
435 versions. (#438)
436
d6066548
MH
437MH/01 Don't check that the operands of numeric comparison operators are
438 integers when their expansion is in "skipping" mode (fixes bug
439 introduced by 4.64-PH/07).
440
4362ff0d
PH
441PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
442 child addresses, Exim now panics and dies. Previously, because the count
443 is held in a short int, deliveries were likely to be lost. As such a
444 large number of recipients for a single message is ridiculous
445 (performance will be very, very poor), I have chosen to impose a limit
446 rather than extend the field.
447
93cfa765 448
944e9e9c
TF
449Exim version 4.64
450-----------------
aa41d2de 451
21d74bd9
TK
452TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
453 leftover -K file (the existence of which was triggered by #402).
454 While we were at it, introduced process PID as part of the -K
455 filename. This should rule out race conditions when creating
456 these files.
457
458TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
459 processing considerably. Previous code took too long for large mails,
460 triggering a timeout which in turn triggers #401.
461
462TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
463 in the DK code in transports.c. sendfile() is not really portable,
464 hence the _LINUX specificness.
944e9e9c
TF
465
466TF/01 In the add_headers option to the mail command in an Exim filter,
467 there was a bug that Exim would claim a syntax error in any
468 header after the first one which had an odd number of characters
469 in the field name.
470
2b1c6e3a
PH
471PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
472 callout verification, Exim cached a "reject" for the entire domain. This
473 is correct for most verifications, but it is not correct for a recipient
474 verification with use_sender or use_postmaster set, because in that case
475 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
476 case of MAIL FROM:<> rejection from other early rejections (e.g.
477 rejection of HELO). When verifying a recipient using a non-null MAIL
478 address, the cache is ignored if it shows MAIL FROM:<> rejection.
479 Whatever the result of the callout, the value of the domain cache is
480 left unchanged (for any other kind of callout, getting as far as trying
481 RCPT means that the domain itself is ok).
482
1f872c80
PH
483PH/02 Tidied a number of unused variable and signed/unsigned warnings that
484 gcc 4.1.1 threw up.
485
486PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
487 manifest itself as EPIPE rather than ECONNECT. When tidying away a
488 session, the daemon ignores ECONNECT errors and logs others; it now
489 ignores EPIPE as well.
490
d203e649
PH
491PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
492 (quoted-printable decoding).
493
cc2ed8f7 494PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 495 later the small subsequent patch to fix an introduced bug.
f951fd57 496
ddfcd446
PH
497PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
498
d45b1de8
PH
499PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
500
501PH/08 An error is now given if message_size_limit is specified negative.
502
38a0a95f 503PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 504 to be given (somewhat) arbitrary names.
38a0a95f 505
a2405d83
JJ
506JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
507 in 4.64-PH/09.
508
509JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
510 miscellaneous code fixes
511
6ea85e9a
PH
512PH/10 Added the log_reject_target ACL modifier to specify where to log
513 rejections.
514
26da7e20
PH
515PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
516 hostname. This is wrong, because it relates to the incoming message (and
517 probably the interface on which it is arriving) and not to the outgoing
518 callout (which could be using a different interface). This has been
519 changed to use the value of the helo_data option from the smtp transport
520 instead - this is what is used when a message is actually being sent. If
521 there is no remote transport (possible with a router that sets up host
522 addresses), $smtp_active_hostname is used.
6ea85e9a 523
14aa5a05 524PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 525 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
526 (a) The code assumed that strncpy() returns a negative number on buffer
527 overflow, which isn't the case. Replaced with Exim's string_format()
528 function.
529 (b) There were several signed/unsigned issues. I just did the minimum
530 hacking in of casts. There is scope for a larger refactoring.
531 (c) The code used strcasecmp() which is not a standard C function.
532 Replaced with Exim's strcmpic() function.
533 (d) The code set only $1; it now sets $auth1 as well.
534 (e) A simple test gave the error "authentication client didn't specify
535 service in request". It would seem that Dovecot has changed its
536 interface. Fortunately there's a specification; I followed it and
537 changed what the client sends and it appears to be working now.
538
ff75a1f7
PH
539PH/13 Added $message_headers_raw to provide the headers without RFC 2047
540 decoding.
541
e6f6568e
PH
542PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
543 address A is aliased to B and C, where B exists and C does not. Without
544 -v the output is "A verified" because verification stops after a
545 successful redirection if more than one address is generated. However,
546 with -v the child addresses are also verified. Exim was outputting "A
547 failed to verify" and then showing the successful verification for C,
548 with its parentage. It now outputs "B failed to verify", showing B's
549 parentage before showing the successful verification of C.
550
d6f6e0dc
PH
551PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
552 look up a TXT record in a specific list after matching in a combined
553 list.
554
322050c2
PH
555PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
556 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
557 they consult the DNS. I had assumed they would set it the way they
558 wanted; and indeed my experiments on Linux seem to show that in some
559 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
560 To be on the safe side, however, I have now made the interface to
561 host_find_byname() similar to host_find_bydns(), with an argument
562 containing the DNS resolver options. The host_find_byname() function now
563 sets these options at its start, just as host_find_bydns() does. The smtp
564 transport options dns_qualify_single and dns_search_parents are passed to
565 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
566 of host_find_byname() use the default settings of RES_DEFNAMES
567 (qualify_single) but not RES_DNSRCH (search_parents).
568
08955dd3
PH
569PH/17 Applied (a modified version of) Nico Erfurth's patch to make
570 spool_read_header() do less string testing, by means of a preliminary
571 switch on the second character of optional "-foo" lines. (This is
572 overdue, caused by the large number of possibilities that now exist.
573 Originally there were few.) While I was there, I also converted the
574 str(n)cmp tests so they don't re-test the leading "-" and the first
575 character, in the hope this might squeeze out yet more improvement.
576
1eccaa59
PH
577PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
578 flag allowing group syntax was set by the header_syntax check but not
579 turned off, possible causing trouble later; (2) The flag was not being
580 set at all for the header_verify test, causing "group"-style headers to
581 be rejected. I have now set it in this case, and also caused header_
582 verify to ignore an empty address taken from a group. While doing this, I
583 came across some other cases where the code for allowing group syntax
584 while scanning a header line wasn't quite right (mostly, not resetting
585 the flag correctly in the right place). These bugs could have caused
586 trouble for malformed header lines. I hope it is now all correct.
587
602e59e5
PH
588PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
589 with the "reply" argument non-NULL. The code, however (which originally
590 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
591 but it didn't always do it. This confused somebody who was copying the
592 code for some other use. I have removed all the tests.
593
411ef850
PH
594PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
595 feature that was used to support insecure browsers during the U.S. crypto
596 embargo. It requires special client support, and Exim is probably the
597 only MTA that supported it -- and would never use it because real RSA is
598 always available. This code has been removed, because it had the bad
599 effect of slowing Exim down by computing (never used) parameters for the
600 RSA_EXPORT functionality.
601
7befa435
PH
602PH/21 On the advice of Timo Sirainen, added a check to the dovecot
603 authenticator to fail if there's a tab character in the incoming data
604 (there should never be unless someone is messing about, as it's supposed
605 to be base64-encoded). Also added, on Timo's advice, the "secured" option
606 if the connection is using TLS or if the remote IP is the same as the
607 local IP, and the "valid-client-cert option" if a client certificate has
608 been verified.
609
48da4259 610PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
611 authenticators. This can be used for authorization after authentication
612 succeeds. (In the case of plaintext, it servers for both authentication
613 and authorization.)
614
48da4259
PH
615PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
616 if any retry times were supplied.
617
d1d5595c
PH
618PH/24 Exim crashed if verify=helo was activated during an incoming -bs
619 connection, where there is no client IP address to check. In this
620 situation, the verify now always succeeds.
621
0ef732d9
PH
622PH/25 Applied John Jetmore's -Mset patch.
623
328895cc
PH
624PH/26 Added -bem to be like -Mset, but loading a message from a file.
625
fd700877
PH
626PH/27 In a string expansion for a processed (not raw) header when multiple
627 headers of the same name were present, leading whitespace was being
628 removed from all of them, but trailing whitespace was being removed only
629 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
630 before concatenation. Completely empty headers in a concatenation (as
631 before) are ignored.
fd700877 632
8dce1a6f
PH
633PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
634 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
635
17af4a17
PH
636PH/29 [Removed. This was a change that I later backed out, and forgot to
637 correct the ChangeLog entry (that I had efficiently created) before
638 committing the later change.]
f6c332bd
PH
639
640PH/30 Exim was sometimes attempting to deliver messages that had suffered
641 address errors (4xx response to RCPT) over the same connection as other
642 messages routed to the same hosts. Such deliveries are always "forced",
643 so retry times are not inspected. This resulted in far too many retries
644 for the affected addresses. The effect occurred only when there were more
645 hosts than the hosts_max_try setting in the smtp transport when it had
646 the 4xx errors. Those hosts that it had tried were not added to the list
647 of hosts for which the message was waiting, so if all were tried, there
648 was no problem. Two fixes have been applied:
649
650 (i) If there are any address or message errors in an SMTP delivery, none
651 of the hosts (tried or untried) are now added to the list of hosts
652 for which the message is waiting, so the message should not be a
653 candidate for sending over the same connection that was used for a
654 successful delivery of some other message. This seems entirely
655 reasonable: after all the message is NOT "waiting for some host".
656 This is so "obvious" that I'm not sure why it wasn't done
657 previously. Hope I haven't missed anything, but it can't do any
658 harm, as the worst effect is to miss an optimization.
659
660 (ii) If, despite (i), such a delivery is accidentally attempted, the
661 routing retry time is respected, so at least it doesn't keep
662 hammering the server.
663
c1114884
PH
664PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
665 in ${readsocket because some servers need this prod.
666
7a0743eb
PH
667PH/32 Added some extra debug output when updating a wait-xxx database.
668
0d85fa3f
PH
669PH/33 The hint "could be header name not terminated by colon", which has been
670 given for certain expansion errors for a long time, was not being given
671 for the ${if def:h_colon_omitted{... case.
672
1bf43b78
PH
673PH/34 The spec says: "With one important exception, whenever a domain list is
674 being scanned, $domain contains the subject domain." There was at least
675 one case where this was not true.
676
520de300
PH
677PH/35 The error "getsockname() failed: connection reset by peer" was being
678 written to the panic log as well as the main log, but it isn't really
679 panic-worthy as it just means the connection died rather early on. I have
680 removed the panic log writing for the ECONNRESET error when getsockname()
681 fails.
682
48c7f9e2
PH
683PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
684 runs only) independently of the message's sender address. This meant
685 that, if the 4xx error was in fact related to the sender, a different
686 message to the same recipient with a different sender could confuse
687 things. In particualar, this can happen when sending to a greylisting
688 server, but other circumstances could also provoke similar problems.
689 I have changed the default so that the retry time for these errors is now
690 based a combination of the sender and recipient addresses. This change
691 can be overridden by setting address_retry_include_sender=false in the
692 smtp transport.
693
99ea1c86
PH
694PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
695 remote server are returned as part of bounce messages. This was not
696 happening for LMTP over a pipe (the lmtp transport), but now it is the
697 same for both kinds of LMTP.
698
a2042e78
PH
699PH/38 Despite being documented as not happening, Exim was rewriting addresses
700 in header lines that were in fact CNAMEs. This is no longer the case.
701
4fbcfc2e
PH
702PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
703 and queue runs started by the daemon processed all messages. This has
704 been fixed so that -R and -S can now usefully be given with -q<time>.
705
aa41d2de
PH
706PH/40 Import PCRE release 6.7 (fixes some bugs).
707
af561417
PH
708PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
709
3cc66b45
PH
710PH/42 Give an error if -q is specified more than once.
711
194cc0e4
PH
712PH/43 Renamed the variables $interface_address and $interface_port as
713 $received_ip_address and $received_port, to make it clear that these
714 values apply to message reception, and not to the outgoing interface when
715 a message is delivered. (The old names remain recognized, of course.)
716
a401ddaa
PH
717PH/44 There was no timeout on the connect() call when using a Unix domain
718 socket in the ${readsocket expansion. There now is.
719
4e88a19f
PH
720PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
721 be meaningful with "accept".
722
d7d7b289
SC
723SC/01 Eximstats V1.43
724 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
725
726SC/02 Eximstats V1.44
727 Use a glob alias rather than an array ref in the generated
728 parser. This improves both readability and performance.
729
730SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
731 Collect SpamAssassin and rejection statistics.
732 Don't display local sender or destination tables unless
733 there is data to show.
734 Added average volumes into the top table text output.
735
736SC/04 Eximstats V1.46
737 Collect data on the number of addresses (recipients)
738 as well as the number of messages.
739
740SC/05 Eximstats V1.47
741 Added 'Message too big' to the list of mail rejection
742 reasons (thanks to Marco Gaiarin).
743
744SC/06 Eximstats V1.48
745 Mainlog lines which have GMT offsets and are too short to
746 have a flag are now skipped.
747
748SC/07 Eximstats V1.49 (Alain Williams)
749 Added the -emptyok flag.
750
751SC/08 Eximstats V1.50
752 Fixes for obtaining the IP address from reject messages.
753
0ea2a468
JJ
754JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
755 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
756 whitesspace changes from 4.64-PH/27
757
758JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
759 match 4.64-PH/13
760
761JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
762 are found, allow negative numbers in numeric criteria)
763
764JJ/06 exipick.20061117.2, added new $message_body_missing variable
765
766JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
767 to match changes made in 4.64-PH/43
768
8a10f5a4
PH
769PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
770
30e18802
PH
771PH/47 Put in an explicit test for a DNS lookup of an address record where the
772 "domain" is actually an IP address, and force a failure. This locks out
773 those revolvers/nameservers that support "A-for-A" lookups, in
774 contravention of the specifications.
775
55728a4f
PH
776PH/48 When a host name was looked up from an IP address, and the subsequent
777 forward lookup of the name timed out, the host name was left in
778 $sender_host_name, contrary to the specification.
d7d7b289 779
d7837193
PH
780PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
781 restricted to single-key lookups, Exim was not diagnosing an error if
782 * or *@ was used with a query-style lookup.
783
87054a31
PH
784PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
785
ea2c01d2
MH
786MH/01 local_scan ABI version incremented to 1.1. It should have been updated
787 long ago, but noone interested enough thought of it. Let's just say that
788 the "1.1" means that there are some new functions that weren't there at
789 some point in the past.
790
e4fa6968
PH
791PH/51 Error processing for expansion failure of helo_data from an smtp
792 transport during callout processing was broken.
793
56f5d9bd
PH
794PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
795 tested/used via the -bh/-bhc/-bs options.
796
922e1c28
PH
797PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
798 bug, fixed in subsequent PCRE releases).
799
21eb6e72
PH
800PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
801 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
802
a0540757
PH
803PH/55 Check for a ridiculously long file name in exim_dbmbuild.
804
944e9e9c 805
478be7b0
SC
806Exim version 4.63
807-----------------
808
809SC/01 Use a glob alias rather than an array ref in eximstats generated
810 parser. This improves both readability and performance.
811
812SC/02 Collect SpamAssassin and rejection statistics in eximstats.
813 Don't display local sender or destination tables in eximstats unless
814 there is data to show.
815 Added average volumes into the eximstats top table text output.
816
817SC/03 Collect data on the number of addresses (recipients) as well
818 as the number of messages in eximstats.
819
2b965a65
TF
820TF/01 Correct an error in the documentation for the redirect router. Exim
821 does (usually) call initgroups() when daemonizing.
478be7b0 822
45b91596
PH
823TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
824 with consistent privilege compared to when running as a daemon.
478be7b0 825
c59f5781
TF
826TF/03 Note in the spec that $authenticated_id is not set for local
827 submissions from trusted users.
828
90fc3069
TF
829TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
830 Thanks to Dean Brooks <dean@iglou.com> for the patch.
831
6083aca0
TF
832TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
833 by adding some example configuration directives to the default
834 configuration file. A little bit of work is required to uncomment the
835 directives and define how usernames and passwords are checked, but
836 there is now a framework to start from.
837
765b530f
PH
838PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
839 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
840 without this. I don't know how relevant this is to other LDAP libraries.
841
4e167a8c
PH
842PH/02 Add the verb name to the "unknown ACL verb" error.
843
4608d683
PH
844PH/03 Magnus Holmgren's patch for filter_prepend_home.
845
b8dc3e4a
PH
846PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
847
5418e93b
PH
848PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
849 directory not expanded when it should be if an expanded home directory
850 was set for the address (which is overridden by the transport).
851
b4a9bda2
PH
852PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
853 libradius.
854
45b91596
PH
855PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
856 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
857 because it is too late at that time, and has no effect.
858
5547e2c5
PH
859PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
860 security issue with \' (bugzilla #107). I could not use the
861 PQescapeStringConn() function, because it needs a PGconn value as one of
862 its arguments.
863
dbcef0ea
PH
864PH/08 When testing addresses using -bt, indicate those final addresses that
865 are duplicates that would not cause an additional delivery. At least one
866 person was confused, thinking that -bt output corresponded to deliveries.
867 (Suppressing duplicates isn't a good idea as you lose the information
868 about possibly different redirections that led to the duplicates.)
869
25257489
PH
870PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
871 systems where poll() doesn't work, in particular OS X.
872
c816d124
PH
873PH/10 Added more information to debugging output for retry time not reached.
874
a9ccd69a
PH
875PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
876 operations in malware.c.
877
75fa1910
PH
878PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
879 signatures.
880
a7d7aa58
PH
881PH/13 If write_rejectlog was set false when logging was sent to syslog with
882 syslog_duplication set false, log lines that would normally be written
883 both the the main log and to the reject log were not written to syslog at
884 all.
885
42119b09
PH
886PH/14 In the default configuration, change the use of "message" in ACL warn
887 statements to "add_header".
888
41609df5
PH
889PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
890 not followed by a command (e.g. "seen endif").
891
a5bd321b
PH
892PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
893 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
894 latter.
895
e85a7ad5 896PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
897 so that it is now:
898
e85a7ad5
PH
899 ${if or { \
900 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
901 { match{$h_precedence:}{(?i)bulk|list|junk} } \
902 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
903 }{no}{yes}}
904
e85a7ad5
PH
905 The Auto-Submitted: and various List- headers are standardised, whereas I
906 don't think Precedence: ever was.
5dff5817 907
d8fe1c03
PH
908PH/18 Refactored debugging code in route_finduser() to show more information,
909 in particular, the error code if getpwnam() issues one.
910
16282d2b
PH
911PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
912 This is apparently needed in addition to the PH/07 change above to avoid
913 any possible encoding problems.
914
35d40a98
PH
915PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
916 but not after initializing Perl.
917
034d99ab
PH
918PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
919 output them only if debugging. By default they are written stderr,
920 apparently, which is not desirable.
921
6ec97b1b
PH
922PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
923 queries.
924
e22ca4ac
JJ
925JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
926 --not options
927
928JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
929
33d73e3b
PH
930PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
931 authenticated or an ident call has been made. Suppress the default
932 values for $authenticated_id and $authenticated_sender (but permit -oMai
933 and -oMas) when testing with -bh.
934
9ecb03f3
PH
935PH/24 Re-jigged the order of the tests in the default configuration so that the
936 tests for valid domains and recipients precede the DNS black list and CSA
937 tests, on the grounds that those ones are more expensive.
938
084efe8d
PH
939PH/25 Exim was not testing for a space following SMTP commands such as EHLO
940 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
941 This bug exists in every version of Exim that I still have, right back to
942 0.12.
943
366fc9f0
PH
944PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
945 However, an attempt to turn on case-sensitivity in a regex key by
946 including (?-i) didn't work because the subject string was already
947 lowercased, and the effects were non-intuitive. It turns out that a
948 one-line patch can be used to allow (?-i) to work as expected.
949
c59f5781 950
c887c79e
TF
951Exim version 4.62
952-----------------
953
954TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
955 other effects) broke the use of negated acl sub-conditions.
956
1cce3af8
PH
957PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
958 patch).
959
afb3eaaf
PH
960PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
961 "Deny" causes Exim to reject the incoming connection with a 554 error.
962 Unfortunately, if there is a major crisis, such as a disk failure,
963 tcp-wrappers gives "deny", whereas what one would like would be some
964 kind of temporary error. A kludge has been added to help with this.
965 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
966 554 error is used if errno is still zero or contains ENOENT (which occurs
967 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
968 451 error is used.
969
e173618b
PH
970PH/03 Add -lutil to the default FreeBSD LIBS setting.
971
dd16e114
PH
972PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
973 errors. Otherwise a message that provokes a temporary error (when other
974 messages do not) can cause a whole host to time out.
975
f7fd3850
PH
976PH/05 Batch deliveries by appendfile and pipe transports did not work when the
977 addresses were routed directly to files or pipes from a redirect router.
978 File deliveries just didn't batch; pipe deliveries might have suffered
979 odd errors.
980
d87df92c
PH
981PH/06 A failure to get a lock for a hints database would erroneously always say
982 "Failed to get write lock", even when it was really a read lock.
983
7e9f683d
PH
984PH/07 The appendfile transport was creating MBX lock files with a fixed mode
985 of 0600. This has been changed to use the value of the lockfile_mode
986 option (which defaults to 0600).
987
bfad5236
PH
988PH/08 Applied small patch from the Sieve maintainer.
989
01c490df
PH
990PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
991 folder from quota calculations, a direct delivery into this folder messed
992 up the contents of the maildirsize file. This was because the regex was
993 used only to exclude .Trash (or whatever) when the size of the mailbox
994 was calculated. There was no check that a delivery was happening into an
995 excluded directory. This bug has been fixed by ignoring all quota
996 processing for deliveries into excluded directories.
997
d6629cdc
PH
998PH/10 Added the maildirfolder_create_regex option to appendfile.
999
1cce3af8 1000
214e2000
PH
1001Exim version 4.61
1002-----------------
1003
1004PH/01 The code for finding all the local interface addresses on a FreeBSD
1005 system running IPv6 was broken. This may well have applied to all BSD
1006 systems, as well as to others that have similar system calls. The broken
1007 code found IPv4 interfaces correctly, but gave incorrect values for the
1008 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1009 that it would not match correctly against @[] and not recognize the IPv6
1010 addresses as local.
1011
f9daeae0
PH
1012PH/02 The ipliteral router was not recognizing addresses of the form user@
1013 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1014
7e66e54d
PH
1015PH/03 Added disable_ipv6.
1016
c8ea1597
PH
1017PH/04 Changed $reply_address to use the raw form of the headers instead of the
1018 decoded form, because it is most often used to construct To: headers
1019 lines in autoreplies, and the decoded form may well be syntactically
1020 invalid. However, $reply_address has leading white space removed, and all
1021 newlines turned into spaces so that the autoreply transport does not
1022 grumble.
1023
911f6fde
PH
1024PH/05 If group was specified without a user on a router, and no group or user
1025 was specified on a transport, the group from the router was ignored.
1026
47ca6d6c
PH
1027PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1028 for visible compile-time settings that can be used to change these
1029 numbers, for those that want even more. Backwards compatibility with old
1030 spool files has been maintained. However, going back to a previous Exim
1031 release will lost any variables that are in spool files.
1032
ed0e9820
PH
1033PH/07 Two small changes when running in the test harness: increase delay when
1034 passing a TCP/IP connection to a new process, in case the original
1035 process has to generate a bounce, and remove special handling of
1036 127.0.0.2 (sic), which is no longer necessary.
1037
eff37e47
PH
1038PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1039 be the same on different OS.
1040
1921d2ea
PH
1041PH/09 Moved a debug statement in filter processing to avoid a race problem when
1042 testing.
1043
b3f69ca8
JJ
1044JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1045 whether --show-vars was specified or not
1046
1047JJ/02 exipick: Added support for new ACL variable spool format introduced
1048 in 4.61-PH/06
1049
424a1c63
PH
1050PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1051 syntactically invalid From: or Reply-to: line, and a filter used this to
1052 generate an autoreply, and therefore failed to obtain an address for the
1053 autoreply, Exim could try to deliver to a non-existent relative file
1054 name, causing unrelated and misleading errors. What now happens is that
1055 it logs this as a hard delivery error, but does not attempt to create a
1056 bounce message.
1057
7a100415
PH
1058PH/11 The exinext utility has a -C option for testing purposes, but although
1059 the given file was scanned by exinext itself; it wasn't being passed on
1060 when Exim was called.
1061
19b9dc85
PH
1062PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1063 an end-of-file indication when reading a command response.
1064
309bd837
PH
1065PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1066 compiled. In many other places in Exim, IPv6 addresses are always
1067 recognized, so I have changed this. It also means that IPv4 domain
1068 literals of the form [IPV4:n.n.n.n] are now always recognized.
1069
59e82a2a
PH
1070PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1071 used if the router is not running as root, for example, when verifying at
1072 ACL time, or when using -bh. The debugging output from this situation was
1073 non-existent - all you got was a failure to exec. I have made two
1074 changes:
1075
1076 (a) Failures to set uid/gid, the current directory, or a process leader
1077 in a subprocess such as that created by queryprogram now generate
1078 suitable debugging ouput when -d is set.
1079
1080 (b) The queryprogram router detects when it is not running as root,
1081 outputs suitable debugging information if -d is set, and then runs
1082 the subprocess without attempting to change uid/gid.
1083
9edc04ce
PH
1084PH/15 Minor change to Makefile for building test_host (undocumented testing
1085 feature).
1086
1349e1e5
PH
1087PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1088 additional section of a DNS packet that returns MX or SRV records.
1089 Instead, it always explicitly searches for A/AAAA records. This avoids
1090 major problems that occur when a DNS server includes only records of one
1091 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1092 fixed another bug: if SRV records were looked up and the corresponding
1093 address records were *not* found in the additional section, the port
1094 values from the SRV records were lost.
1095
ea49d0e1
PH
1096PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1097 using the correct key (the original address) when searching the retry
1098 rules in order to find which one to use for generating the retry hint.
1099
064a94c9
PH
1100PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1101 adding the default one. Similarly, if it contains a Reply-To: header, the
1102 errors_reply_to option, if set, is not used.
1103
727071f8
PH
1104PH/19 When calculating a retry time, Exim used to measure the "time since
1105 failure" by looking at the "first failed" field in the retry record. Now
1106 it does not use this if it is later than than the arrival time of the
1107 message. Instead it uses the arrival time. This makes for better
1108 behaviour in cases where some deliveries succeed, thus re-setting the
1109 "first failed" field. An example is a quota failure for a huge message
1110 when small messages continue to be delivered. Without this change, the
1111 "time since failure" will always be short, possible causing more frequent
1112 delivery attempts for the huge message than are intended.
dd16e114 1113 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1114
f78eb7c6
PH
1115PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1116 $1, $2, $3) because the numerical variables can be reset during some
1117 expansion items (e.g. "match"), thereby losing the authentication data.
1118
21c28500
PH
1119PH/21 Make -bV show the size of off_t variables so that the test suite can
1120 decide whether to run tests for quotas > 2G.
1121
1122PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1123 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1124 filecount value is greater than 2G or if a quota value is greater than 2G
1125 on a system where the size of off_t is not greater than 4, a panic error
1126 is given.
1127
1688f43b
PH
1128PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1129 never match. The debug and -bh output now contains an explicit error
1130 message indicating a malformed IPv4 address or mask.
1131
1132PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1133 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1134 PH/23 above applies.
1135
9675b384
PH
1136PH/25 Do not write to syslog when running in the test harness. The only
1137 occasion when this arises is a failure to open the main or panic logs
1138 (for which there is an explicit test).
1139
6a3f1455
PH
1140PH/26 Added the /no_tell option to "control=freeze".
1141
dac79d3e
PH
1142PH/27 If a host name lookup failed very early in a connection, for example, if
1143 the IP address matched host_lookup and the reverse lookup yielded a name
1144 that did not have a forward lookup, an error message of the form "no IP
1145 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1146 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1147
5977a0b3
PH
1148PH/28 An enabling patch from MH: add new function child_open_exim2() which
1149 allows the sender and the authenticated sender to be set when
1150 submitting a message from within Exim. Since child_open_exim() is
1151 documented for local_scan(), the new function should be too.
1152
c91535f3
PH
1153PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1154 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1155 results in an empty string is now treated as unset.
1156
0d46a8c8
PH
1157PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1158
278c6e6c
PH
1159PH/31 Added sender_verify_fail logging option.
1160
2cbb4081
PH
1161PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1162 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1163 tidied the source and removed it altogether.
1164
3eef829e
PH
1165PH/33 When a queue run was abandoned because the load average was too high, a
1166 log line was always written; now it is written only if the queue_run log
1167 selector is set. In addition, the log line for abandonment now contains
1168 information about the queue run such as the pid. This is always present
1169 in "start" and "stop" lines but was omitted from the "abandon" line.
1170
1ab95fa6
PH
1171PH/34 Omit spaces between a header name and the colon in the error message that
1172 is given when verify = headers_syntax fails (if there are lots of them,
1173 the message gets confusing).
1174
230205fc
PH
1175PH/35 Change the default for dns_check_names_pattern to allow slashes within
1176 names, as there are now some PTR records that contain slashes. This check
1177 is only to protect against broken name servers that fall over on strange
1178 characters, so the fact that it applies to all lookups doesn't matter.
1179
75e0e026
PH
1180PH/36 Now that the new test suite is complete, we can remove some of the
1181 special code in Exim that was needed for the old test suite. For example,
1182 sorting DNS records because real resolvers return them in an arbitrary
1183 order. The new test suite's fake resolver always returns records in the
1184 same order.
1185
1186PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1187 bounces) except when queue_only is set, to avoid logging races between
1188 the different processes.
1189
145396a6
PH
1190PH/38 Panic-die if .include specifies a non-absolute path.
1191
3cd34f13
PH
1192PH/39 A tweak to the "H" retry rule from its user.
1193
11121d3d
JJ
1194JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1195 a label. They prevented compilation on older perls.
1196
1197JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1198 a warning to be raised on newish perls.
1199
1200JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1201 on queue. Changes to match documented behaviour of showing count of
1202 messages matching specified criteria.
1203
8def5aaf
PH
1204PH/40 Changed the default ident timeout from 30s to 5s.
1205
929ba01c
PH
1206PH/41 Added support for the use of login_cap features, on those BSD systems
1207 that have them, for controlling the resources used by pipe deliveries.
1208
2632889e
PH
1209PH/42 The content-scanning code uses fopen() to create files in which to put
1210 message data. Previously it was not paying any attention to the mode of
1211 the files. Exim runs with umask(0) because the rest of the code creates
1212 files with open(), and sets the required mode explicitly. Thus, these
1213 files were ending up world-writeable. This was not a big issue, because,
1214 being within the spool directory, they were not world-accessible. I have
1215 created a function called modefopen, which takes an additional mode
1216 argument. It sets umask(777), creates the file, chmods it to the required
1217 mode, then resets the umask. All the relevant calls to fopen() in the
1218 content scanning code have been changed to use this function.
1219
944a9c55
PH
1220PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1221 to 24 hours. This avoids potential overflow problems when processing G
1222 and H retry rules. I suspect nobody ever tinkers with this value.
1223
4a23603b
PH
1224PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1225
4730f942
PH
1226PH/45 When the plaintext authenticator is running as a client, the server's
1227 challenges are checked to ensure they are valid base64 strings. By
1228 default, the authentication attempt is cancelled if an invalid string is
1229 received. Setting client_ignore_invalid_base64 true ignores these errors.
1230 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1231 they are received. Thus, the responses can be made to depend on the
1232 challenges. If an invalid string is ignored, an empty string is placed in
1233 the variable.
1234
30dba1e6
PH
1235PH/46 Messages that are created by the autoreply transport now contains a
1236 References: header, in accordance with RFCs 2822 and 3834.
1237
382afc6b
PH
1238PH/47 Added authenticated_sender_force to the smtp transport.
1239
a86229cf
PH
1240PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1241
50c99ba6
PH
1242PH/49 Installed latest patch from the Sieve maintainer.
1243
d35e429d
PH
1244PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1245 was also set, the appendfile transport was unnecessarily scanning a
1246 directory of message files (e.g. for maildir delivery) to find the count
1247 of files (along with the size), even though it did not need this
1248 information. It now does the scan only if it needs to find either the
1249 size of the count of files.
1250
f90d018c
PH
1251PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1252
75def545
PH
1253PH/52 Two bugs concerned with error handling when the smtp transport is
1254 used in LMTP mode:
1255
1256 (i) Exim was not creating retry information for temporary errors given
1257 for individual recipients after the DATA command when the smtp transport
1258 was used in LMTP mode. This meant that they could be retried too
1259 frequently, and not timed out correctly.
1260
1261 (ii) Exim was setting the flag that allows error details to be returned
1262 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1263 recipients that were returned after the DATA command.
1264
1265PH/53 This is related to PH/52, but is more general: for any failing address,
1266 when detailed error information was permitted to be returned to the
1267 sender, but the error was temporary, then after the final timeout, only
1268 "retry timeout exceeded" was returned. Now it returns the full error as
1269 well as "retry timeout exceeded".
1270
c46782ef
PH
1271PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1272 do this, and (what is worse) MTAs that accept it.
1273
71fafd95
PH
1274PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1275 will now be deprecated.
1276
2c5db4fd
PH
1277PH/56 New os.c-cygwin from the Cygwin maintainer.
1278
9cf6b11a
JJ
1279JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1280 formats (previously only available in exim formats via -bpr, -bpru,
1281 and -bpra. Now also available in native and exiqgrep formats)
1282
1283JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1284 with very large, slow to parse queues
1285
1286JJ/08 exipick: added ! as generic prefix to negate any criteria format
1287
1288JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1289
898d150f
PH
1290PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1291 responses to authentication challenges, though it was showing the
1292 challenges; (ii) I've removed the CR characters from the debug output for
1293 SMTP output lines.
1294
46218253
PH
1295PH/58 Allow for the insertion of a newline as well as a space when a string
1296 is turned into more than one encoded-word during RFC 2047 encoding. The
1297 Sieve code now uses this.
1298
e97957bc
PH
1299PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1300 data_4xx, lost_connection, tls_required.
1301
81e509d7
PH
1302PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1303 message was being sent as an SMTP response.
1304
3d240ff7
PH
1305PH/61 Add -l and -k options to exicyclog.
1306
b37c4101
PH
1307PH/62 When verifying, if an address was redirected to one new address, so that
1308 verification continued, and the new address failed or deferred after
1309 having set something in $address_data, the value of $address_data was not
1310 passed back to the ACL. This was different to the case when no
1311 redirection occurred. The value is now passed back in both cases.
1312
79378e0f
PH
1313PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1314 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1315 use login_cap.h, so on its own it isn't the distinguishing feature. The
1316 new name refers directly to the setclassresources() function.
1317
e49c7bb4
PH
1318PH/65 Added configuration files for NetBSD3.
1319
d114ec46
PH
1320PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1321
f3d7df6c
PH
1322PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1323 is preferred over IPv4.
1324
715ab376
PH
1325PH/68 The bounce_return_message and bounce_return_body options were not being
1326 honoured for bounces generated during the reception of non-SMTP messages.
1327 In particular, this applied to messages rejected by the ACL. This bug has
1328 been fixed. However, if bounce_return_message is true and bounce_return_
1329 body is false, the headers that are returned for a non-SMTP message
1330 include only those that have been read before the error was detected.
1331 (In the case of an ACL rejection, they have all been read.)
1332
6b31b150
PH
1333PH/69 The HTML version of the specification is now built in a directory called
1334 spec_html instead of spec.html, because the latter looks like a path with
1335 a MIME-type, and this confuses some software.
1336
1337PH/70 Catch two compiler warnings in sieve.c.
1338
d515a917
PH
1339PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1340 function verify_get_ident() calls ip_connect() to connect a socket, but
1341 if the "connect()" function timed out, ip_connect() used to close the
1342 socket. However, verify_get_ident() also closes the socket later, and in
1343 between Exim writes to the log, which may get opened at this point. When
1344 the socket was closed in ip_connect(), the log could get the same file
1345 descriptor number as the socket. This naturally causes chaos. The fix is
1346 not to close the socket in ip_connect(); the socket should be closed by
1347 the function that creates it. There was only one place in the code where
1348 this was missing, in the iplookup router, which I don't think anybody now
1349 uses, but I've fixed it anyway.
1350
9b8fadde
PH
1351PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1352 well as to direct DNS lookups. Otherwise the handling of names in host
1353 lists is inconsistent and therefore confusing.
1354
214e2000 1355
5de37277
PH
1356Exim version 4.60
1357-----------------
1358
cc38ddbf
PH
1359PH/01 Two changes to the default runtime configuration:
1360
1361 (1) Move the checks for relay_from_hosts and authenticated clients from
1362 after to before the (commented out) DNS black list checks.
1363
1364 (2) Add control=submission to the relay_from_hosts and authenticated
1365 clients checks, on the grounds that messages accepted by these
1366 statements are most likely to be submissions.
5de37277 1367
72fdd6ae
PH
1368PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1369
1370 (1) Generate an error if the third argument for the ${prvs expansion is
1371 not a single digit.
1372
1373 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1374 string.
1375
1376 (3) Reset the variables that are obtained from the first argument of
1377 ${prvscheck and used in the second argument before leaving the code,
1378 because their memory is reclaimed, so using them afterwards may do
1379 silly things.
1380
1381 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1382 one (it's much easier than Tom thought :-).
1383
1384 (5) Because of (4), we can now allow for the use of $prvscheck_result
1385 inside the third argument.
cb9328de 1386
cb741023
PH
1387PH/03 For some reason, the default setting of PATH when running a command from
1388 a pipe transport was just "/usr/bin". I have changed it to
1389 "/bin:/usr/bin".
1390
f174f16e
PH
1391PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1392 anything to be listed in the output from -bV.
b2f5a032 1393
c25242d7
PH
1394PH/05 When a filter generated an autoreply, the entire To: header line was
1395 quoted in the delivery log line, like this:
1396
1397 => >A.N.Other <ano@some.domain> <original@ddress> ...
1398
1399 This has been changed so that it extracts the operative address. There
1400 may be more than one such address. If so, they are comma-separated, like
1401 this:
1402
1403 => >ano@some.domain,ona@other.domain <original@ddress> ...
1404
82c19f95
PH
1405PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1406 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1407 not being looked up in the rDNS to get a host name, Exim was showing the
1408 IP address twice in Received: lines, even though the IP addresses were
1409 identical. For example:
1410
1411 Received: from [1.2.3.4] (helo=[1.2.3.4])
1412
1413 However, if the real host name was known, it was omitting the HELO data
1414 if it matched the actual IP address. This has been tidied up so that it
1415 doesn't show the same IP address twice.
1416
d7ffbc12
PH
1417PH/07 When both +timestamp and +memory debugging was on, the value given by
1418 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1419 called by the debug printing, thereby overwriting the timestamp buffer.
1420 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1421
9f526266
PH
1422PH/08 When the original message was included in an autoreply transport, it
1423 always said "this is a copy of the message, including all the headers",
1424 even if body_only or headers_only was set. It now gives an appropriate
1425 message.
1426
87fcc8b9
PH
1427PH/09 Applied a patch from the Sieve maintainer which:
1428
1429 o fixes some comments
1430 o adds the (disabled) notify extension core
1431 o adds some debug output for the result of if/elsif tests
1432 o points to the current vacation draft in the documentation
1433 and documents the missing references header update
1434
1435 and most important:
1436
1437 o fixes a bug in processing the envelope test (when testing
1438 multiple envelope elements, the last element determinted the
1439 result)
1440
456682f5
PH
1441PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1442 Electronic Mail") by including:
1443
1444 Auto-submitted: auto-generated
1445
1446 in the messages that it generates (bounce messages and others, such as
1447 warnings). In the case of bounce messages for non-SMTP mesages, there was
1448 also a typo: it was using "Auto_submitted" (underscore instead of
1449 hyphen). Since every message generated by Exim is necessarily in response
1450 to another message, thes have all been changed to:
1451
1452 Auto-Submitted: auto-replied
1453
1454 in accordance with these statements in the RFC:
1455
1456 The auto-replied keyword:
1457
1458 - SHOULD be used on messages sent in direct response to another
1459 message by an automatic process,
1460
1461 - MUST NOT be used on manually-generated messages,
1462
1463 - MAY be used on Delivery Status Notifications (DSNs) and Message
1464 Disposition Notifications (MDNs),
1465
1466 - MUST NOT be used on messages generated by automatic or periodic
1467 processes, except for messages which are automatic responses to
1468 other messages.
1469
3e46c1aa
PH
1470PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1471 to the default Received: header definition.
456682f5 1472
49826d12
PH
1473PH/12 Added log selector acl_warn_skipped (default on).
1474
eba0c039
PH
1475PH/13 After a successful wildlsearch lookup, discard the values of numeric
1476 variables because (a) they are in the wrong storage pool and (b) even if
1477 they were copied, it wouldn't work properly because of the caching.
1478
a0d6ba8a
PH
1479PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1480 checking when decoding. Apparently there are clients that generate
1481 overlong encoded strings. Why am I not surprised?
1482
f0917727
PH
1483PH/15 If the first argument of "${if match_address" was not empty, but did not
1484 contain an "@" character, Exim crashed. Now it writes a panic log message
1485 and treats the condition as false.
1486
096fee00
PH
1487PH/16 In autoreply, treat an empty string for "once" the same as unset.
1488
024bd3c2
PH
1489PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1490 extension "envelope-auth". The code is finished and in agreement with
1491 other implementations, but there is no documentation so far and in fact,
1492 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1493 not changing the active code.
1494
1495 Print executed "if" and "elsif" statements when debugging is used. This
1496 helps a great deal to understand what a filter does.
1497
1498 Document more things not specified clearly in RFC3028. I had all this
1499 sorted out, when out of a sudden new issues came to my mind. Oops."
1500
df199fec
PH
1501PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1502 (Bugzilla #53).
1503
d27f1df3
PH
1504PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1505 canonical form (as documented). However, after a host name lookup from
1506 the IP address, check_host() was doing a simple string comparison with
1507 addresses acquired from the DNS when checking that the found name did
1508 have the original IP as one of its addresses. Since any found IPv6
1509 addresses are likely to be in abbreviated form, the comparison could
1510 fail. Luckily, there already exists a function for doing the comparison
1511 by converting both addresses to binary, so now that is used instead of
1512 the text comparison.
1513
96776534
PH
1514PH/20 There was another similar case to PH/19, when a complete host name was
1515 given in a host list; looking up its IP address could give an abbreviated
1516 form, whereas the current host's name might or might not be abbreviated.
1517 The same fix has been applied.
1518
5de37277 1519
9a799bc0
PH
1520Exim version 4.54
1521-----------------
1522
1523PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1524 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1525 It now does.
1526
99a4b039
PH
1527PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1528 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1529
1530PH/03 Typo: missing ".o" in src/pcre/Makefile.
1531
4b233853
PH
1532PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1533 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1534 Also, for "Auto-Submitted", treat anything other than "no" as
1535 non-personal, in accordance with RFC 3834. (Previously it treated
1536 anything starting "auto-" as non-personal.)
1537
8857ccfd
PH
1538TF/01 The control=submission/name=... option had a problem with syntax
1539 errors if the name included a slash character. The /name= option
1540 now slurps the rest of the string, so it can include any characters
1541 but it must come last in the list of options (after /sender_retain
1542 or /domain=).
1543
433a2980
PH
1544PH/05 Some modifications to the interface to the fake nameserver for the new
1545 testing suite.
1546
3e46c1aa 1547
9a799bc0 1548
e3a311ba
TK
1549Exim version 4.53
1550-----------------
1551
1552TK/01 Added the "success_on_redirect" address verification option. See
1553 NewStuff for rationale and an example.
1554
13b685f9
PH
1555PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1556
395ff96d
PH
1557PH/02 Patch to exigrep to allow it to work on syslog lines.
1558
5b68f6e4
PH
1559PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1560 fread() to skip over the body file's header line, because in Cygwin the
1561 header line is locked and is inaccessible.
1562
1ab52c69
PH
1563PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1564 co-exist for some time) to make it clear that it is the Exim ID that is
1565 referenced, not the Message-ID: header line.
1566
b07e6aa3
PH
1567PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1568 string_format() function, because snprintf() does not exist on all
1569 operating systems.
1570
254e032f
PH
1571PH/06 The use of forbid_filter_existstest now also locks out the use of the
1572 ${stat: expansion item.
1573
3af76a81
PH
1574PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1575 protocol synchronization error", to keep the pedants happy.
1576
2548ba04
PH
1577PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1578 well as for IRIX systems, when gcc is being used. See the host.c source
1579 file for comments.
1580
b6c6011d
PH
1581PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1582
cf39cf57
PH
1583PH/10 Named domain lists were not working if used in a queue_smtp_domains
1584 setting.
1585
f1513293
PH
1586PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1587 transport and to the smtp transport in LMTP mode.
1588
727549a4
PH
1589TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1590
af46795e
PH
1591PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1592 run a filter in a subprocess. This could lead to confusion in subsequent
1593 lookups in the parent process. There should also be a search_tidyup() at
1594 the end of the subprocess.
1595
d7b47fd0
PH
1596PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1597 only if the host matched helo_try_verify_hosts, which caused the
1598 verification to occur when the EHLO/HELO command was issued. The ACL just
1599 tested the remembered result. Now, if a previous verification attempt has
1600 not happened, "verify = helo" does it there and then.
1601
ee744174
JJ
1602JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1603
b582ab87
PH
1604TK/03 Fix log output including CR from clamd.
1605
41a13e0a
PH
1606PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1607 exist provoked a memory error which could cause a segfault.
1608
f625cc5a
PH
1609PH/15 Installed PCRE 6.2
1610
1611PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1612
21f7af35
PH
1613PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1614 of the problem. Specifically, suggested +O2 rather than +O1 for the
1615 HP-UX compiler.
1616
31480e42
PH
1617PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1618
2d280592
PH
1619PH/20 If a delivery was routed to a non-standard port by means of an SRV
1620 record, the port was not correctly logged when the outgoing_port log
1621 selector was set (it logged the transort's default port).
1622
7cd1141b
PH
1623PH/21 Added support for host-specific ports to manualroute, queryprogram,
1624 fallback_hosts, and "hosts" in the smtp transport.
1625
1626PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1627 host errors such as "Connection refused".
1628
750af86e
PH
1629PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1630 authentication with radiusclient 0.4.9:
1631
1632 - Error returned from rc_read_config was caught wrongly
1633 - Username/password not passed on to radius server due to wrong length.
1634
1635 The presumption is that some radiusclient API changes for 4.51/PH/17
1636 were not taken care of correctly. The code is still untested by me (my
1637 Linux distribution still has 0.3.2 of radiusclient), but it was
1638 contributed by a Radius user.
1639
1640PH/24 When doing a callout, the value of $domain wasn't set correctly when
1641 expanding the "port" option of the smtp transport.
1642
4304270b
TK
1643TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1644 while reading a MIME header. Thanks to Tom Hughes for a patch.
1645
750af86e
PH
1646PH/24 Include config.h inside local_scan.h so that configuration settings are
1647 available.
1648
64ffc24f
PH
1649PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1650 that in an ACL for RCPT (for example), you can examine exactly what was
1651 received.
1652
5dd9625b
PH
1653PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1654 commands, but it was not correctly comparing the address with the actual
1655 client host address. Thus, it would show the EHLO address in Received:
1656 header lines when this was not necessary.
1657
5591031b
PH
1658PH/27 Added the % operator to ${eval:}.
1659
ba18e66a
PH
1660PH/28 Exim tries to create and chdir to its spool directory when it starts;
1661 it should be ignoring failures (because with -C, for example, it has lost
1662 privilege). It wasn't ignoring creation failures other than "already
1663 exists".
1664
9cec981f
PH
1665PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1666 -bV or -d is used.
1667
aa2b5c79
PH
1668PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1669 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1670 too many continuations, the temporary file was not being removed, and the
1671 return code was incorrect.
aa2b5c79 1672
48a53b7f
PH
1673PH/31 Missing "BOOL" in function definition in filtertest.c.
1674
1c59d63b
PH
1675PH/32 Applied Sieve patches from the maintainer.
1676
671012da
TK
1677TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1678
1509d3a8
PH
1679PH/33 Added "verify = not_blind".
1680
1681PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1682 Local/Makefile (with some defaults set). These are used in built scripts
1683 such as exicyclog, but they have never been used in the exim_install
1684 script (though there are many overriding facilities there). I have
1685 arranged that the exim_install script now takes note of these two
1686 settings.
1687
1688PH/35 Installed configuration files for Dragonfly.
1689
2fe1a124
PH
1690PH/36 When a locally submitted message by a trusted user did not contain a
1691 From: header, and the sender address was obtained from -f or from an SMTP
1692 MAIL command, and the trusted user did not use -F to supply a sender
1693 name, $originator_name was incorrectly used when constructing a From:
1694 header. Furthermore, $originator_name was used for submission mode
1695 messages from external hosts without From: headers in a similar way,
1696 which is clearly wrong.
1697
8800895a
PH
1698PH/37 Added control=suppress_local_fixups.
1699
ccfdb010
PH
1700PH/38 When log_selector = +received_sender was set, and the addition of the
1701 sender made the log line's construction buffer exactly full, or one byte
1702 less than full, an overflow happened when the terminating "\n" was
1703 subsequently added.
1704
1130bfb0
PH
1705PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1706 when the result of a list match is failure because a DNS lookup failed.
1707
ebcb507f
PH
1708PH/40 RM_COMMAND is now used in the building process.
1709
c35e155c
PH
1710PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1711 the "build-* directories that it finds.
1712
95d1f782
PH
1713PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1714 address in a domain literal was a prefix of an interface address.
1715
fd6de02e
PH
1716PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1717 when verifying a sender address, unless rewrite_headers is false.
1718
58de37c5
PH
1719PH/44 Wrote a long comment about why errors_to addresses are verified as
1720 recipients, not senders.
1721
261cf466
TF
1722TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1723 the ratelimit ACL was added.
1724
3ee512ff
PH
1725PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1726
e08c430f
PH
1727PH/46 Added extra information about PostgreSQL errors to the error string.
1728
bef5a11f
PH
1729PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1730 avoiding the need to install special zones in a real server. This is
1731 backwards compatible; if it can't find the fake resolver, it drops back.
1732 Thus, both old and new test suites can be run.
1733
7546de58
TF
1734TF/02 Added util/ratelimit.pl
1735
e5d5a95f
TF
1736TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1737 clock is set back in time.
1738
2e88a017
TF
1739TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1740 Candler <B.Candler@pobox.com>.
1741
a5f65aa4
TF
1742TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1743 OK for addresses that are the result of redirections.
1744
e7726cbf
PH
1745PH/48 A number of further additions for the benefit of the new test suite,
1746 including a fake gethostbyname() that interfaces to the fake DNS resolver
1747 (see PH/47 above).
1748
a7fdad5b
TF
1749TF/06 The fix for widen_domains has also been applied to qualify_single and
1750 search_parents which are the other dnslookup options that can cause
1751 header rewrites.
1752
6af56900
PH
1753PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1754 type ("H").
1755
0925ede6
PH
1756PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1757
66afa403
TF
1758TF/07 Exim produced the error message "an SRV record indicated no SMTP
1759 service" if it encountered an MX record with an empty target hostname.
1760 The message is now "an MX or SRV record indicated no SMTP service".
1761
0154e85a
TF
1762TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1763 if the DNS of the sending site is misconfigured. This is quite a
1764 common situation. This change restores the behaviour of treating a
1765 helo verification defer as a failure.
1766
16f12c76
PH
1767PH/51 If self=fail was set on a router, the bounce message did not include the
1768 actual error message.
1769
bbe902f0 1770
e5a9dba6
PH
1771Exim version 4.52
1772-----------------
1773
1774TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1775
22c3b60b
PH
1776PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1777 command itself ended in error, the underlying message about the transport
1778 filter timeout was being overwritten with the pipe command error. Now the
1779 underlying error message should be appended to the second error message.
1780
06a9b4b5
PH
1781TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1782
c1ac6996
PH
1783PH/02 Reduce the amount of output that "make" produces by default. Full output
1784 can still be requested.
1785
9c7a242c
PH
1786PH/03 The warning log line about a condition test deferring for a "warn" verb
1787 was being output only once per connection, rather than after each
1788 occurrence (because it was using the same function as for successful
1789 "warn" verbs). This seems wrong, so I have changed it.
1790
87ba3f5f
PH
1791TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1792 it should not have, which might have caused a crash in the right
1793 circumstances, but probably never did.
1794
1795PH/04 Installed a modified version of Tony Finch's patch to make submission
1796 mode fix the return path as well as the Sender: header line, and to
1797 add a /name= option so that you can make the user's friendly name appear
1798 in the header line.
1799
29aba418
TF
1800TF/03 Added the control = fakedefer ACL modifier.
1801
fe0dab11
TF
1802TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1803 Mark Lowes for thorough testing.
870f6ba8 1804
11d337a4
TK
1805TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1806
1807TK/03 Merged latest SRS patch from Miles Wilton.
1808
415c8f3b
PH
1809PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1810 with the definition in sysexits.h (which is #included earlier).
1811 Fortunately, Exim does not actually use EX_OK. The code used to try to
1812 preserve the sysexits.h value, by assumimg that macro definitions were
1813 scanned for macro replacements. I have been disabused of this notion,
1814 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1815
958541e9
PH
1816PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1817 in the smtp transport. When a block could not be written in a single
1818 write() function, the timeout was being re-applied to each part-write.
1819 This seems wrong - if the receiver was accepting one byte at a time it
1820 would take for ever. The timeout is now adjusted when this happens. It
1821 doesn't have to be particularly precise.
1822
c206415f
TK
1823TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1824 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1825
2a4be8f9
PH
1826PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1827 without a domain if the check to <postmaster@domain> fails.
1828
1cba11c5
SC
1829SC/01 Eximstats: added -xls and the ability to specify output files
1830 (patch written by Frank Heydlauf).
1831
1832SC/02 Eximstats: use FileHandles for outputing results.
1833
1834SC/03 Eximstats: allow any combination of xls, txt, and html output.
1835
1836SC/04 Eximstats: fixed display of large numbers with -nvr option
1837
1838SC/05 Eximstats: fixed merging of reports with empty tables.
1839
1840SC/06 Eximstats: added the -include_original_destination flag
1841
1842SC/07 Eximstats: removed tabs and trailing whitespace.
1843
1005d00e
TK
1844TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1845
1846TK/06 MBOX spool code: Add real "From " MBOX separator line
1847 so the .eml file is really in mbox format (even though
1848 most programs do not really care). Patch from Alex Miller.
1849
1850TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1851 The latter is generated from $received_to and is only set if the
1852 message has one envelope recipient. SA can use these headers,
1853 obviously out-of-the-box. Patch from Alex Miller.
1854
9b4768fa
PH
1855PH/08 The ${def test on a variable was returning false if the variable's
1856 value was "0", contrary to what the specification has always said!
1857 The result should be true unless the variable is empty.
1858
1859PH/09 The syntax error of a character other than { following "${if
1860 def:variable_name" (after optional whitespace) was not being diagnosed.
1861 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1862 accidental colon was present, for example, could give incorrect results.
1863
0d7eb84a
PH
1864PH/10 Tidied the code in a number of places where the st_size field of a stat()
1865 result is used (not including appendfile, where other changes are about
1866 to be made).
1867
1868PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1869 This involved changing a lot of size variables from int to off_t. It
1870 should work with maildirs and everything.
1871
40727bee
TK
1872TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1873 spamd dying while we are connected to it.
1874
554d2369
TF
1875TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1876 <jgh@wizmail.org>
1877
1f922db1
PH
1878PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1879 function for BDB 4.3.
1880
ef213c3b
PH
1881PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1882
8ac170f3
PH
1883PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1884 the sources for PCRE have been re-arranged and more files are now
1885 involved.
1886
b1c749bb
PH
1887PH/15 The code I had for printing potentially long long variables in PH/11
1888 above was not the best (it lost precision). The length of off_t variables
1889 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1890 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1891 to be "long long int" or "long int". This is needed for the internal
1892 formatting function string_vformat().
b1c749bb 1893
4aac9b49
PH
1894PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1895 the configuration file to be ":syslog", then the script "guesses" where
1896 the logs files are, rather than using the compiled in default. In our
1897 case the guess is not the same as the compiled default, so the script
1898 suddenly stopped working when I started to use syslog. The patch checks
1899 to see if log_file_path is "". If so, it attempts to read it from exim
1900 with no configuration file to get the compiled in version, before it
1901 falls back to the previous guessing code."
1902
294520c8
TK
1903TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1904 implementing BATV in an Exim configuration. See NewStuff for the gory
1905 details.
1906
5bd022fe
PH
1907PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1908 Makefile that are specific to HP-UX.
1909
90e9ce59
PH
1910PH/18 If the "use_postmaster" option was set for a recipient callout together
1911 with the "random" option, the postmaster address was used as the MAIL
1912 FROM address for the random test, but not for the subsequent recipient
1913 test. It is now used for both.
1914
5ea81592
PH
1915PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1916 patch removes a few documentation additions to RFC 3028, because the
1917 latest draft now contains them. It adds the new en;ascii-case comparator
1918 and a new error check for 8bit text in MIME parts. Comparator and
1919 require names are now matched exactly. I enabled the subaddress
1920 extension, but it is not well tested yet (read: it works for me)."
1921
c6c2dc1d
PH
1922PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1923 rework some of the code of TK/09 above to avoid the hardwired use of
1924 "%lld" and "long long". Replaced the call to snprintf() with a call to
1925 string_vformat().
1926
fffffe4c
PH
1927PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1928 records point to non-existent hosts", "retry timeout exceeded", and
1929 "retry time not reached for any host after a long failure period".
ca02eafb 1930
9a26b6b2
PH
1931PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1932 experimental DomainKeys support:
1933
1934 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1935 (2) On an error such as an illegally used "control", the wrong name for
1936 the control was given.
1937
1938 These problems did NOT occur unless DomainKeys support was compiled.
1939
4aee0225
PH
1940PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1941
32d668a5
PH
1942PH/24 Added ${if match_ip condition.
1943
8187c3f3
PH
1944PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1945 databases so that it will be absolutely obvious if a crash occurs in the
1946 DB library. This is a regular occurrence (often caused by mis-matched
1947 db.h files).
1948
ff790e47 1949PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1950 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1951 picked up on a user's system that detects such things. There doesn't seem
1952 to be a gcc warning option for this - only an attribute that has to be
1953 put on the function's prototype. It seems that in Fedora Core 4 they have
1954 set this on a number of new functions. No doubt there will be more in due
1955 course.
ff790e47 1956
5417f6d1
PH
1957PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1958 specify a transport. However, if an address that was verified by such a
1959 router was the subject of a callout, Exim crashed because it tried to
1960 read the rcpt_include_affixes from the non-existent transport. Now it
1961 just assumes that the setting of that option is false. This bug was
1962 introduced by 4.51/PH/31.
1963
59cf8544
PH
1964PH/28 Changed -d+all to exclude +memory, because that information is very
1965 rarely of interest, but it makes the output a lot bigger. People tend to
1966 do -d+all out of habit.
1967
e7ad8a65
PH
1968PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1969 code in os-type was giving problems when libc.so lives in lib64, like on
1970 x86_64 Fedora Core.
1971
ade42478
PH
1972PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1973 aren't the modern standard, and it seems that some systems' include files
1974 don't always have them. Exim was already checking for some of the newer
1975 ones like T_AAAA, and defining it itself. I've added checks for all the
1976 record types that Exim uses.
1977
182ad5cf
PH
1978PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1979 not automatically generating a new one, as it is supposed to. This
1980 prevented TLS from working. If the file did exist, but contained invalid
1981 data, a new version was generated, as expected. It was only the case of a
1982 non-existent file that was broken.
1983
b0d9fc80
TK
1984TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1985 with a change in libdomainkeys > 0.64.
1986
1987TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1988 from DNS. If the selector record carries the flag, it now has
1989 precedence over the domain-wide flag.
1990
1991TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1992
47c7a64a
PH
1993PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1994 the use of a port name that isn't defined in /etc/services) occurred, the
1995 message was deferred as in a normal delivery, and thus remained on the
1996 spool, instead of being failed because of the mua_wrapper setting. This
1997 is now fixed, and I tidied up some of the mua_wrapper messages at the
1998 same time.
1999
a388bce4
SC
2000SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2001 the messages in a hash of arrays rather than using individual hashes.
2002 This is a bit cleaner and results in dramatic memory savings, albeit
2003 at a slight CPU cost.
2004
2005SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2006 as requested by Marc Sherman.
2007
2008SC/10 Eximstats: added histograms for user specified patterns as requested
2009 by Marc Sherman.
2010
0793e4ed
SC
2011SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2012
c58b88df
PH
2013PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2014 fopen() in the content-scanning modules that did not already have it.
2015
e7ad8a65 2016
7982096b
PH
2017Exim version 4.51
2018-----------------
2019
1a46a8c5
PH
2020TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2021 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2022
2f079f46 2023TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2024
2025TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2026
2027PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2028 to test Sieve filters that use "vacation".
2029
2030PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2031 that changes the way the GnuTLS parameters are stored in the cache file.
2032 The new format can be generated externally. For backward compatibility,
2033 if the data in the cache doesn't make sense, Exim assumes it has read an
2034 old-format file, and it generates new data and writes a new file. This
2035 means that you can't go back to an older release without removing the
2036 file.
2037
2038PH/03 A redirect router that has both "unseen" and "one_time" set does not
2039 work if there are any delivery delays because "one_time" forces the
2040 parent to be marked "delivered", so its unseen clone is never tried
2041 again. For this reason, Exim now forbids the simultaneous setting of
2042 these two options.
2043
2044PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2045 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2046 entry if you want to know the details. The fix, however, neglected to
2047 consider the case when local delivery batching is involved. The test for
2048 "previously delivered" was not happening when checking to see if an
2049 address could be batched with a previous (undelivered) one; under
2050 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2051 address.
1a46a8c5
PH
2052
2053PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2054 in its include files, and this causes problems building Exim.
2055
2056PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2057 header_syntax) but Exim was just ignoring anything given after a slash.
2058 In particular, this caused confusion with an attempt to use "verify =
2059 reverse_host_lookup/defer_ok". An error is now given when options are
2060 supplied for verify items that do not have them. (Maybe reverse_host_
2061 lookup should have a defer_ok option, but that's a different point.)
2062
2063PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2064 defined by RFC 821) to 2048, because there were problems with some AUTH
2065 commands, and RFC 1869 says the size should be increased for extended
2066 SMTP commands that take arguments.
2067
2068PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2069 Finch).
2070
2071PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2072 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2073
49c2d5ea
PH
2074PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2075 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2076 whatever). Otherwise the password may appear in the log. Following change
2077 PH/42 below, there is no longer a chance of it appearing in a bounce
2078 message.
49c2d5ea 2079
bf759a8b
PH
2080PH/11 Installed exipick version 20050225.0 from John Jetmore.
2081
83364d30
PH
2082PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2083 of its addresses was ever tried. (Bugzilla bug #2.)
2084
7999bbd7
PH
2085PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2086 the result incorrectly in the debug output. (It correctly added a newline
2087 to what was transported.)
2088
7dbf77c9
PH
2089TF/01 Added $received_time.
2090
74e0617f
PH
2091PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2092 commented out examples of how to interface to a virus scanner and to
2093 SpamAssassin. Also added commented examples of av_scanner and
2094 spamd_address settings.
2095
2f079f46
PH
2096PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2097 and controls are allowed in which ACLs. There were a couple of minor
2098 errors. Some of the entries in the conditions table (which is a table of
2099 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2100 negation of where the condition IS allowed.
2101
8c841523
PH
2102PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2103
7766a4f0
PH
2104PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2105 header file does not have a version number, so I've had to invent a new
2106 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2107 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2108 radiusclient), but it was contributed by a Radius user.
2109
8b417f2c
PH
2110PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2111 files or directories, for OpenSSL.
2112
901f42cb
PH
2113PH/19 When an Exim process that is running as root has to create an Exim log
2114 file, it does so in a subprocess that runs as exim:exim so as to get the
2115 ownership right at creation (otherwise, other Exim processes might see
2116 the file with the wrong ownership). There was no test for failure of this
2117 fork() call, which would lead to the process getting stuck as it waited
2118 for a non-existent subprocess. Forks do occasionally fail when resources
2119 run out. I reviewed all the other calls to fork(); they all seem to check
2120 for failure.
2121
f9b9210e
PH
2122PH/20 When checking for unexpected SMTP input at connect time (before writing
2123 the banner), Exim was not dealing correctly with a non-positive return
2124 from the read() function. If the client had disconnected by this time,
2125 the result was a log entry for a synchronization error with an empty
2126 string after "input=" when read() returned zero. If read() returned -1
2127 (an event I could not check), uninitialized data bytes were printed.
2128 There were reports of junk text (parts of files, etc) appearing after
2129 "input=".
2130
54cdb463
PH
2131PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2132
cf00dad6
PH
2133PH/22 Added support for macro redefinition, and (re)definition in between
2134 driver and ACL definitions.
2135
acb1b346
PH
2136PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2137 forgetting to use the resulting value; it was using the unexpanded value.
2138
c5ddb310
PH
2139PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2140 hadn't been configured. The fix is from Juergen Kreileder, who
2141 understands it better than I do:
2142
2143 "Here's what I see happening with three configured cyrus_sasl
2144 authenticators configured (plain, login, cram-md5):
2145
2146 On startup auth_cyrus_sasl_init() gets called for each of these.
2147 This means three calls to sasl_listmech() without a specified mech_list.
2148 => SASL tests which mechs of all available mechs actually work
2149 => three warnings about OTP not working
2150 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2151
2152 With the patch, sasl_listmech() also gets called three times. But now
2153 SASL's mech_list option is set to the server_mech specified in the the
2154 authenticator. Or in other words, the answer from sasl_listmech()
2155 gets limited to just the mech you're testing for (which is different
2156 for each call.)
2157 => the return list contains just 'plain' or 'login', 'cram-md5' or
2158 nothing depending on the value of ob->server_mech.
2159
2160 I've just tested the patch: Authentication still works fine,
2161 unavailable mechs specified in the exim configuration are still
2162 caught, and the auth.log warnings about OTP are gone."
2163
31619da6
PH
2164PH/25 When debugging is enabled, the contents of the command line are added
2165 to the debugging output, even when log_selector=+arguments is not
2166 specified.
2167
bebaf0fc
PH
2168PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2169 answer is "GNU", and only if the return is "GNU/something" is the answer
2170 "Linux".
2171
475fe28a
PH
2172PH/27 $acl_verify_message is now set immediately after the failure of a
2173 verification in an ACL, and so is available in subsequent modifiers. In
2174 particular, the message can be preserved by coding like this:
2175
2176 warn !verify = sender
2177 set acl_m0 = $acl_verify_message
2178
2179 Previously, $acl_verify_message was set only while expanding "message"
2180 and "log_message" when a very denied access.
2181
7e8bec7a
PH
2182PH/28 Modified OS/os.c-Linux with
2183
2184 -#ifndef OS_LOAD_AVERAGE
2185 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2186
2187 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2188 nomenclature these days.)
2189
e4a89c47
PH
2190PH/29 Installed patch from the Sieve maintainer that adds the options
2191 sieve_useraddress and sieve_subaddress to the redirect router.
2192
5ca2a9a1
PH
2193PH/30 In these circumstances:
2194 . Two addresses routed to the same list of hosts;
2195 . First host does not offer TLS;
2196 . First host accepts first address;
2197 . First host gives temporary error to second address;
2198 . Second host offers TLS and a TLS session is established;
2199 . Second host accepts second address.
2200 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2201 and peerdn, if requested) that were in fact used only for the second
2202 address.
7e8bec7a 2203
c688b954
PH
2204PH/31 When doing a callout as part of verifying an address, Exim was not paying
2205 attention to any local part prefix or suffix that was matched by the
2206 router that accepted the address. It now behaves in the same way as it
2207 does for delivery: the affixes are removed from the local part unless
2208 rcpt_include_affixes is set on the transport.
2209
fed77020
PH
2210PH/32 Add the sender address, as F=<...>, to the log line when logging a
2211 timeout during the DATA phase of an incoming message.
2212
7fe1560f
PH
2213PH/33 Sieve envelope tests were broken for match types other than :is. I have
2214 applied a patch sanctioned by the Sieve maintainer.
c688b954 2215
ebb6e6d5
PH
2216PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2217 the uid or gid is negative. A case of a negative gid caused this to be
2218 noticed. The fix allows for either to be negative.
2219
9c4e8f60
PH
2220PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2221 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2222 overlooked.
2223
2224PH/36 The change PH/12 above was broken. Fixed it.
2225
d7174846
PH
2226PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2227 the grounds that routing the same address twice would always produce the
2228 same answer. This might have been true once, but it is certainly no
2229 longer true now. Routing a child address may depend on the previous
2230 routing that produced that child. Some complicated redirection strategies
2231 went wrong when messages had multiple recipients, and made Exim's
2232 behaviour dependent on the order in which the addresses were given.
2233
2234 I have moved the duplicate checking until after the routing is complete.
2235 Exim scans the addresses that are assigned to local and remote
2236 transports, and removes any duplicates. This means that more work will be
2237 done, as duplicates will always all be routed, but duplicates are
2238 presumably rare, so I don't expect this is of any significance.
2239
2240 For deliveries to pipes, files, and autoreplies, the duplicate checking
2241 still happens during the routing process, since they are not going to be
2242 routed further.
2243
cfe75fc3
PH
2244PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2245 It corrects a timeout issue with spamd. This is Ian's comment: "The
2246 background is that sometimes spamd either never reads data from a
2247 connection it has accepted, or it never writes response data. The exiscan
2248 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2249 blindly assumes that writes won't block so it may never time out."
2250
be22d70e
PH
2251PH/39 Allow G after quota size as well as K and M.
2252
0612b098
PH
2253PH/40 The value set for $authenticated_id in an authenticator may not contain
2254 binary zeroes or newlines because the value is written to log lines and
2255 to spool files. There was no check on this. Now the value is run through
2256 the string_printing() function so that such characters are converted to
2257 printable escape sequences.
2258
2e0c1448
PH
2259PH/41 $message_linecount is a new variable that contains the total number of
2260 lines in the message. Compare $body_linecount, which is the count for the
2261 body only.
2262
447d236c
PH
2263PH/42 Exim no longer gives details of delivery errors for specific addresses in
2264 bounce and delay warning messages, except in certain special cases, which
2265 are as follows:
2266
2267 (a) An SMTP error message from a remote host;
2268 (b) A message specified in a :fail: redirection;
2269 (c) A message specified in a "fail" command in a system filter;
2270 (d) A message specified in a FAIL return from the queryprogram router;
2271 (e) A message specified by the cannot_route_message router option.
2272
2273 In these cases only, Exim does include the error details in bounce and
2274 warning messages. There are also a few cases where bland messages such
2275 as "unrouteable address" or "local delivery error" are given.
2276
d20976dc
PH
2277PH/43 $value is now also set for the "else" part of a ${run expansion.
2278
f656d135
PH
2279PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2280 being worked on, but at least Exim now implements the latest version to
2281 play with."
2282
2e2a30b4
PH
2283PH/45 In a pipe transport, although a timeout while waiting for the pipe
2284 process to complete was treated as a delivery failure, a timeout while
2285 writing the message to the pipe was logged, but erroneously treated as a
2286 successful delivery. Such timeouts include transport filter timeouts. For
2287 consistency with the overall process timeout, these timeouts are now
2288 treated as errors, giving rise to delivery failures by default. However,
2289 there is now a new Boolean option for the pipe transport called
2290 timeout_defer, which, if set TRUE, converts the failures into defers for
2291 both kinds of timeout. A transport filter timeout is now identified in
2292 the log output.
2293
9176e9f0
PH
2294PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2295 systems where "make" and "gmake" are different, calling "gmake" at top
2296 level broke things. I've arranged for the value of $(MAKE) to be passed
2297 from the Makefile to this script so that it can call the same version of
2298 "make".
2299
7982096b 2300
bbe902f0
PH
2301A note about Exim versions 4.44 and 4.50
2302----------------------------------------
2303
2304Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2305changes of various kinds. As a consequence, a big documentation update was
2306needed. This delayed the release for rather longer than seemed good, especially
2307in the light of a couple of (minor) security issues. Therefore, the changes
2308that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2309release. So 4.44 and 4.50 are in effect two different branches that both start
2310from 4.43.
2311
2312I have left the 4.50 change log unchanged; it contains all the changes since
23134.43. The change log for 4.44 is below; many of its items are identical to
2314those for 4.50. This seems to be the most sensible way to preserve the
2315historical information.
2316
2317
f7b63901 2318Exim version 4.50
495ae4b0
PH
2319-----------------
2320
5fe762f6
PH
2321 1. Minor wording change to the doc/README.SIEVE file.
2322
139059f6 2323 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2324 computation of the current number of files was incorrect.
495ae4b0 2325
7086e875
PH
2326 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2327 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2328 place.
2329
35af9f61
PH
2330 4. Give more explanation in the error message when the command for a transport
2331 filter fails to execute.
2332
b668c215
PH
2333 5. There are several places where Exim runs a non-Exim command in a
2334 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2335 was being done only for the command run by the queryprogram router. It is
2336 now done for all such subprocesses. The other cases are: ${run, transport
2337 filters, and the commands run by the lmtp and pipe transports.
2338
a494b1e1
PH
2339 6. Added CONFIGURE_GROUP build-time option.
2340
2341 7. Some older OS have a limit of 256 on the maximum number of file
2342 descriptors. Exim was using setrlimit() to set 1000 as a large value
2343 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2344 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2345
c5fcb476
PH
2346 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2347 was an oversight, and furthermore, ever since the addition of extra
2348 controls (e.g. 4.43/32), the checks on when to allow different forms of
2349 "control" were broken. There should now be diagnostics for all cases when a
2350 control that does not make sense is encountered.
2351
69358f02
PH
2352 9. Added the /retain_sender option to "control=submission".
2353
5be20824
PH
235410. $recipients is now available in the predata ACL (oversight).
2355
eb2c0248
PH
235611. Tidy the search cache before the fork to do a delivery from a message
2357 received from the command line. Otherwise the child will trigger a lookup
2358 failure and thereby defer the delivery if it tries to use (for example) a
2359 cached ldap connection that the parent has called unbind on.
2360
2a3eea10
PH
236112. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2362 of $address_data from the recipient verification was clobbered by the
2363 sender verification.
2364
236513. The value of address_data from a sender verification is now available in
2366 $sender_address_data in subsequent conditions in the ACL statement.
2367
23c7ff99
PH
236814. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2369
4deaf07d
PH
237015. Added a new option "connect=<time>" to callout options, to set a different
2371 connection timeout.
2372
926e1192
PH
237316. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2374 was its contents. (It was OK if the option was not defined at all.)
2375
650edc6f
PH
237617. A "Completed" log line is now written for messages that are removed from
2377 the spool by the -Mrm option.
2378
2c7db3f5
PH
237918. New variables $sender_verify_failure and $recipient_verify_failure contain
2380 information about exactly what failed.
2381
3d235903
PH
238219. Added -dd to debug only the daemon process.
2383
7c7ad977
PH
238420. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2385 handles timeouts, both on the server side and network timeouts. Renamed the
2386 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2387
981756db
PH
238821. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2389 It is now set to "smtps".
2390
d4eb88df
PH
239122. $host_address is now set to the target address during the checking of
2392 ignore_target_hosts.
2393
239423. When checking ignore_target_hosts for an ipliteral router, no host name was
2395 being passed; this would have caused $sender_host_name to have been used if
2396 matching the list had actually called for a host name (not very likely,
2397 since this list is usually IP addresses). A host name is now passed as
2398 "[x.x.x.x]".
2399
7d468ab8
PH
240024. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2401 code that specifies a non-restarting handler (typically sigaction() in
2402 modern systems) in an attempt to fix a rare and obscure crash bug.
2403
240425. Narrowed the window for a race in the daemon that could cause it to ignore
2405 SIGCHLD signals. This is not a major problem, because they are used only to
2406 wake it up if nothing else does.
2407
62c0818f
PH
240826. A malformed maildirsize file could cause Exim to calculate negative values
2409 for the mailbox size or file count. Odd effects could occur as a result.
2410 The maildirsize information is now recalculated if the size or filecount
2411 end up negative.
2412
26034054
PH
241327. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2414 support for a long time. Removed HAVE_SYS_VFS_H.
2415
af66f652
PH
241628. Installed the latest version of exipick from John Jetmore.
2417
90af77f4
PH
241829. In an address list, if the pattern was not a regular expression, an empty
2419 subject address (from a bounce message) matched only if the pattern was an
2420 empty string. Non-empty patterns were not even tested. This was the wrong
2421 because it is perfectly reasonable to use an empty address as part of a
2422 database query. An empty address is now tested by patterns that are
2423 lookups. However, all the other forms of pattern expect the subject to
2424 contain a local part and a domain, and therefore, for them, an empty
2425 address still always fails if the pattern is not itself empty.
2426
d8ef3577
PH
242730. Exim went into a mad DNS loop when attempting to do a callout where the
2428 host was specified on an smtp transport, and looking it up yielded more
2429 than one IP address.
2430
5cb8cbc6
PH
243131. Re-factored the code for checking spool and log partition space into a
2432 function that finds that data and another that does the check. The former
2433 is then used to implement four new variables: $spool_space, $log_space,
2434 $spool_inodes, and $log_inodes.
2435
14702f5b
PH
243632. The RFC2047 encoding function was originally intended for short strings
2437 such as real names; it was not keeping to the 75-character limit for
2438 encoded words that the RFC imposes. It now respects the limit, and
2439 generates multiple encoded words if necessary. To be on the safe side, I
2440 have increased the buffer size for the ${rfc2047: expansion operator from
2441 1024 to 2048 bytes.
2442
063b1e99
PH
244333. It is now permitted to omit both strings after an "if" condition; if the
2444 condition is true, the result is "true". As before, when the second string
2445 is omitted, a false condition yields an empty string. This makes it less
2446 cumbersome to write custom ACL and router conditions.
2447
652e1b65
PH
244834. Failure to deliver a bounce message always caused it to be frozen, even if
2449 there was an errors_to setting on the router. The errors_to setting is now
2450 respected.
2451
6f0c9a4f
PH
245235. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2453 canonical form (fully expanded) before being placed in
2454 $sender_host_address.
2455
33397d19
PH
245636. The table in the code that translates DNS record types into text (T_A to
2457 "A" for instance) was missing entries for NS and CNAME. It is just possible
2458 that this could have caused confusion if both these types were looked up
2459 for the same domain, because the text type is used as part of Exim's
2460 per-process caching. But the chance of anyone hitting this buglet seems
2461 very small.
2462
7bb56e1f
PH
246337. The dnsdb lookup has been extended in a number of ways.
2464
2465 (1) There is a new type, "zns", which walks up the domain tree until it
2466 finds some nameserver records. It should be used with care.
2467
ea3bc19b
PH
2468 (2) There is a new type, "mxh", which is like "mx" except that it returns
2469 just the host names, not the priorities.
2470
2471 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2472 looked up. The behaviour when one of the lookups defers can be
2473 controlled by a keyword.
7bb56e1f 2474
ea3bc19b 2475 (4) It is now possible to specify the separator character for use when
7bb56e1f 2476 multiple records are returned.
33397d19 2477
0bcb2a0e
PH
247838. The dnslists ACL condition has been extended: it is now possible to supply
2479 a list of IP addresses and/or domains to be looked up in a particular DNS
2480 domain.
2481
2ac0e484
PH
248239. Added log_selector=+queue_time_overall.
2483
4e1fde53
PH
248440. When running the queue in the test harness, wait just a tad after forking a
2485 delivery process, to get repeatability of debugging output.
2486
de365ded
PH
248741. Include certificate and key file names in error message when GnuTLS fails
2488 to set them up, because the GnuTLS error message doesn't include the name
2489 of the failing file when there is a problem reading it.
2490
f05da2e8
PH
249142. Allow both -bf and -bF in the same test run.
2492
d6453af2
PH
249343. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2494
f7b63901
PH
249544. The "Exiscan patch" is now merged into the mainline Exim source.
2496
249745. Sometimes the final signoff response after QUIT could fail to get
2498 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2499 < 0 before doing a fflush(). This bug looks as though it goes back to the
2500 introduction of TLS in release 3.20, but "sometimes" must have been rare
2501 because the tests only now provoked it.
2502
a444213a
PH
250346. Reset the locale to "C" after calling embedded Perl, in case it was changed
2504 (this can affect the format of dates).
2505
0ec020ea
PH
250647. exim_tidydb, when checking for the continued existence of a message for
2507 which it has found a message-specific retry record, was not finding
2508 messages that were in split spool directories. Consequently, it was
2509 deleting retry records that should have stayed in existence.
2510
b1206957
PH
251148. Steve fixed some bugs in eximstats.
2512
251349. The SPA authentication driver was not abandoning authentication and moving
2514 on to the next authenticator when an expansion was forced to fail,
2515 contradicting the general specification for all authenticators. Instead it
2516 was generating a temporary error. It now behaves as specified.
2517
26dd5a95
PH
251850. The default ordering of permitted cipher suites for GnuTLS was pessimal
2519 (the order specifies the preference for clients). The order is now AES256,
2520 AES128, 3DES, ARCFOUR128.
2521
343b2385
PH
252251. Small patch to Sieve code - explicitly set From: when generating an
2523 autoreply.
2524
1c5466b9
PH
252552. Exim crashed if a remote delivery caused a very long error message to be
2526 recorded - for instance if somebody sent an entire SpamAssassin report back
2527 as a large number of 550 error lines. This bug was coincidentally fixed by
2528 increasing the size of one of Exim's internal buffers (big_buffer) that
2529 happened as part of the Exiscan merge. However, to be on the safe side, I
2530 have made the code more robust (and fixed the comments that describe what
2531 is going on).
2532
55ee9ee3
PH
253353. Now that there can be additional text after "Completed" in log lines (if
2534 the queue_time_overall log selector is set), a one-byte patch to exigrep
2535 was needed to allow it to recognize "Completed" as not the last thing in
2536 the line.
2537
d38f8232
PH
253854. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2539 patch that reportedly fixes this has been added. I am not expert enough to
2540 create a test for it. This is what the patch creator wrote:
2541
2542 "I found a little strange behaviour of ldap code when working with
2543 Windows 2003 AD Domain, where users was placed in more than one
2544 Organization Units. When I tried to give exim partial DN, the exit code
2545 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2546 But simultaneously result of request was absolutely normal ldap result,
2547 so I produce this patch..."
2548
3295e65b
PH
2549 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2550 REFERENCE, so I have modified the code to exclude the patch when that macro
2551 is not defined.
2552
7102e136
PH
255355. Some experimental protocols are using DNS PTR records for new purposes. The
2554 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2555 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2556 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2557 CAN-2005-0021
7102e136 2558
3ca0ba97
PH
255956. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2560
c2bcbe20
PH
256157. Double the size of the debug message buffer (to 2048) so that more of very
2562 long debug lines gets shown.
2563
18ce445d
PH
256458. The exicyclog utility now does better if the number of log files to keep
2565 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2566
1f5b4c3d
PH
256759. Two changes related to the smtp_active_hostname option:
2568
2569 (1) $smtp_active_hostname is now available as a variable.
2570 (2) The default for smtp_banner uses $smtp_active_hostname instead
2571 of $primary_hostname.
2572
b975ba52
PH
257360. The host_aton() function is supposed to be passed a string that is known
2574 to be a valid IP address. However, in the case of IPv6 addresses, it was
2575 not checking this. This is a hostage to fortune. Exim now panics and dies
2576 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2577 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2578 components; fortuitously, this particular loophole had already been fixed
2579 by change 4.50/55 above.
2580
2581 If there are any other similar loopholes, the new check in host_aton()
2582 itself should stop them being exploited. The report I received stated that
2583 data on the command line could provoke the exploit when Exim was running as
2584 exim, but did not say which command line option was involved. All I could
2585 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2586 running as the user.
ea3a6f44 2587 CAN-2005-0021
85b87bc2
PH
2588
258961. There was a buffer overflow vulnerability in the SPA authentication code
2590 (which came originally from the Samba project). I have added a test to the
2591 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2592 CAN-2005-0022
b975ba52 2593
17ffcae7
PH
259462. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2595 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2596
d95f9fdb
PH
259763. The daemon start-up calls getloadavg() while still root for those OS that
2598 need the first call to be done as root, but it missed one case: when
2599 deliver_queue_load_max is set with deliver_drop_privilege. This is
2600 necessary for the benefit of the queue runner, because there is no re-exec
2601 when deliver_drop_privilege is set.
2602
86b8287f
PH
260364. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2604 This has been fixed.
2605
60dc5e56
PH
260665. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2607 was in use, was not putting the data itself into the right store pool;
2608 consequently, it could be overwritten for a subsequent message in the same
2609 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2610 the caching.)
2611
533244af
PH
261266. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2613
a5a28604
PH
261467. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2615 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2616 the function were treating the return as a boolean value, which happened to
2617 work because 0=false and not-0=true, but is not correct code.
2618
7e634d24
PH
261968. The host_aton() function was not handling scoped IPv6 addresses (those
2620 with, for example, "%eth0" on the end) correctly.
2621
3e11c26b
PH
262269. Fixed some compiler warnings in acl.c for the bitmaps specified with
2623 negated items (that is, ~something) in unsigned ints. Some compilers
2624 apparently mutter when there is no cast.
2625
6729cf78
PH
262670. If an address verification called from an ACL failed, and did not produce a
2627 user-specific message (i.e. there was only a "system" message), nothing was
2628 put in $acl_verify_message. In this situation, it now puts the system
2629 message there.
2630
00f00ca5
PH
263171. Change 4.23/11 added synchronization checking at the start of an SMTP
2632 session; change 4.31/43 added the unwanted input to the log line - except
2633 that it did not do this in the start of session case. It now does.
2634
c9bdd01c
PH
263572. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2636 This is wrong and can cause the other end to generate a synchronization
2637 error if it is another Exim or anything else that does the synchronization
2638 check. A QUIT command is no longer sent after a timeout.
2639
d43194df
PH
264073. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2641 during host lookups.
2642
fe5b5d0b
PH
264374. The defer_ok option of callout verification was not working if it was used
2644 when verifying addresses in header lines, that is, for this case:
2645
2646 verify = header_sender/callout=defer_ok
2647
76a2d7ba
PH
264875. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2649 those file descriptors could be used for SMTP connections. If anything
2650 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2651 could be sent to the SMTP client, causing chaos. The daemon now opens
2652 stdin, stdout, and stderr to /dev/null when it puts itself into the
2653 background.
2654
265576. Arrange for output from Perl's "warn" command to be written to Exim's main
2656 log by default. The user can override this with suitable Perl magic.
2657
04f7d5b9
PH
265877. The use of log_message on a "discard" ACL verb, which is supposed to add to
2659 the log message when discard triggers, was not working for the DATA ACL or
2660 for the non-SMTP ACL.
2661
bc60667e
PH
266278. Error message wording change in sieve.c.
2663
bb6e88ff
PH
266479. If smtp_accept_max_per_host was set, the number of connections could be
2665 restricted to fewer than expected, because the daemon was trying to set up
2666 a new connection before checking whether the processes handling previous
2667 connections had finished. The check for completed processes is now done
2668 earlier. On busy systems, this bug wouldn't be noticed because something
2669 else would have woken the daemon, and it would have reaped the completed
2670 process earlier.
2671
1e70f85b
PH
267280. If a message was submitted locally by a user whose login name contained one
2673 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2674 It caused a spool format error. I have fixed the spool reading code. A
2675 related problem was that the "from" clause in the Received: line became
2676 illegal because of the space(s). It is now covered by ${quote_local_part.
2677
267881. Included the latest eximstats from Steve (adds average sizes to HTML Top
2679 tables).
2680
4e01f9d6
PH
268182. Updated OS/Makefile-AIX as per message from Mike Meredith.
2682
1ee1cef2
PH
268383. Patch from Sieve maintainer to fix unterminated string problem in
2684 "vacation" handling.
2685
6e2b4ccc
PH
268684. Some minor changes to the Linux configuration files to help with other
2687 OS variants using glibc.
2688
8e669ac1
PH
268985. One more patch for Sieve to update vacation handling to latest spec.
2690
495ae4b0 2691
bbe902f0
PH
2692----------------------------------------------------
2693See the note above about the 4.44 and 4.50 releases.
2694----------------------------------------------------
2695
2696
2697Exim version 4.44
2698-----------------
2699
2700 1. Change 4.43/35 introduced a bug that caused file counts to be
2701 incorrectly computed when quota_filecount was set in an appendfile
2702 transport
2703
2704 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2705 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2706 place.
2707
2708 3. Give more explanation in the error message when the command for a transport
2709 filter fails to execute.
2710
2711 4. There are several places where Exim runs a non-Exim command in a
2712 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2713 was being done only for the command run by the queryprogram router. It is
2714 now done for all such subprocesses. The other cases are: ${run, transport
2715 filters, and the commands run by the lmtp and pipe transports.
2716
2717 5. Some older OS have a limit of 256 on the maximum number of file
2718 descriptors. Exim was using setrlimit() to set 1000 as a large value
2719 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2720 systems. I've change it so that if it can't get 1000, it tries for 256.
2721
2722 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2723 was an oversight, and furthermore, ever since the addition of extra
2724 controls (e.g. 4.43/32), the checks on when to allow different forms of
2725 "control" were broken. There should now be diagnostics for all cases when a
2726 control that does not make sense is encountered.
2727
2728 7. $recipients is now available in the predata ACL (oversight).
2729
2730 8. Tidy the search cache before the fork to do a delivery from a message
2731 received from the command line. Otherwise the child will trigger a lookup
2732 failure and thereby defer the delivery if it tries to use (for example) a
2733 cached ldap connection that the parent has called unbind on.
2734
2735 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2736 of $address_data from the recipient verification was clobbered by the
2737 sender verification.
2738
273910. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2740 was its contents. (It was OK if the option was not defined at all.)
2741
274211. A "Completed" log line is now written for messages that are removed from
2743 the spool by the -Mrm option.
2744
274512. $host_address is now set to the target address during the checking of
2746 ignore_target_hosts.
2747
274813. When checking ignore_target_hosts for an ipliteral router, no host name was
2749 being passed; this would have caused $sender_host_name to have been used if
2750 matching the list had actually called for a host name (not very likely,
2751 since this list is usually IP addresses). A host name is now passed as
2752 "[x.x.x.x]".
2753
275414. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2755 code that specifies a non-restarting handler (typically sigaction() in
2756 modern systems) in an attempt to fix a rare and obscure crash bug.
2757
275815. Narrowed the window for a race in the daemon that could cause it to ignore
2759 SIGCHLD signals. This is not a major problem, because they are used only to
2760 wake it up if nothing else does.
2761
276216. A malformed maildirsize file could cause Exim to calculate negative values
2763 for the mailbox size or file count. Odd effects could occur as a result.
2764 The maildirsize information is now recalculated if the size or filecount
2765 end up negative.
2766
276717. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2768 support for a long time. Removed HAVE_SYS_VFS_H.
2769
ea3a6f44 277018. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2771
277219. Allow an empty sender to be matched against a lookup in an address list.
2773 Previously the only cases considered were a regular expression, or an
2774 empty pattern.
2775
277620. Exim went into a mad DNS lookup loop when doing a callout where the
2777 host was specified on the transport, if the DNS lookup yielded more than
2778 one IP address.
2779
ea3a6f44
NM
278021. The RFC2047 encoding function was originally intended for short strings
2781 such as real names; it was not keeping to the 75-character limit for
2782 encoded words that the RFC imposes. It now respects the limit, and
2783 generates multiple encoded words if necessary. To be on the safe side, I
2784 have increased the buffer size for the ${rfc2047: expansion operator from
2785 1024 to 2048 bytes.
bbe902f0 2786
ea3a6f44
NM
278722. Failure to deliver a bounce message always caused it to be frozen, even if
2788 there was an errors_to setting on the router. The errors_to setting is now
2789 respected.
bbe902f0
PH
2790
279123. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2792 canonical form (fully expanded) before being placed in
2793 $sender_host_address.
2794
279524. Updated eximstats to version 1.33
2796
ea3a6f44
NM
279725. Include certificate and key file names in error message when GnuTLS fails
2798 to set them up, because the GnuTLS error message doesn't include the name
2799 of the failing file when there is a problem reading it.
bbe902f0
PH
2800
280126. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2802 As per change 25.
bbe902f0 2803
ea3a6f44
NM
280427. Reset the locale to "C" after calling embedded Perl, in case it was changed
2805 (this can affect the format of dates).
bbe902f0 2806
ea3a6f44
NM
280728. exim_tidydb, when checking for the continued existence of a message for
2808 which it has found a message-specific retry record, was not finding
2809 messages that were in split spool directories. Consequently, it was
2810 deleting retry records that should have stayed in existence.
bbe902f0
PH
2811
281229. eximstats updated to version 1.35
2813 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2814 1.35 - bugfix such that pie charts by volume are generated correctly
2815
ea3a6f44
NM
281630. The SPA authentication driver was not abandoning authentication and moving
2817 on to the next authenticator when an expansion was forced to fail,
2818 contradicting the general specification for all authenticators. Instead it
2819 was generating a temporary error. It now behaves as specified.
bbe902f0 2820
ea3a6f44
NM
282131. The default ordering of permitted cipher suites for GnuTLS was pessimal
2822 (the order specifies the preference for clients). The order is now AES256,
2823 AES128, 3DES, ARCFOUR128.
bbe902f0 2824
ea3a6f44
NM
282531. Small patch to Sieve code - explicitly set From: when generating an
2826 autoreply.
bbe902f0 2827
ea3a6f44
NM
282832. Exim crashed if a remote delivery caused a very long error message to be
2829 recorded - for instance if somebody sent an entire SpamAssassin report back
2830 as a large number of 550 error lines. This bug was coincidentally fixed by
2831 increasing the size of one of Exim's internal buffers (big_buffer) that
2832 happened as part of the Exiscan merge. However, to be on the safe side, I
2833 have made the code more robust (and fixed the comments that describe what
2834 is going on).
bbe902f0 2835
ea3a6f44
NM
283633. Some experimental protocols are using DNS PTR records for new purposes. The
2837 keys for these records are domain names, not reversed IP addresses. The
2838 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2839 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2840 CAN-2005-0021
2841
ea3a6f44
NM
284234. The host_aton() function is supposed to be passed a string that is known
2843 to be a valid IP address. However, in the case of IPv6 addresses, it was
2844 not checking this. This is a hostage to fortune. Exim now panics and dies
2845 if the condition is not met. A case was found where this could be provoked
2846 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2847 components; fortuitously, this particular loophole had already been fixed
2848 by change 4.50/55 or 4.44/33 above.
2849
2850 If there are any other similar loopholes, the new check in host_aton()
2851 itself should stop them being exploited. The report I received stated that
2852 data on the command line could provoke the exploit when Exim was running as
2853 exim, but did not say which command line option was involved. All I could
2854 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2855 running as the user.
bbe902f0
PH
2856 CAN-2005-0021
2857
ea3a6f44
NM
285835. There was a buffer overflow vulnerability in the SPA authentication code
2859 (which came originally from the Samba project). I have added a test to the
2860 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2861 CAN-2005-0022
2862
ea3a6f44
NM
286336. The daemon start-up calls getloadavg() while still root for those OS that
2864 need the first call to be done as root, but it missed one case: when
2865 deliver_queue_load_max is set with deliver_drop_privilege. This is
2866 necessary for the benefit of the queue runner, because there is no re-exec
2867 when deliver_drop_privilege is set.
bbe902f0 2868
ea3a6f44
NM
286937. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2870 was in use, was not putting the data itself into the right store pool;
2871 consequently, it could be overwritten for a subsequent message in the same
2872 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2873 the caching.)
bbe902f0 2874
ea3a6f44
NM
287538. Sometimes the final signoff response after QUIT could fail to get
2876 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2877 < 0 before doing a fflush(). This bug looks as though it goes back to the
2878 introduction of TLS in release 3.20, but "sometimes" must have been rare
2879 because the tests only now provoked it.
bbe902f0
PH
2880
2881
495ae4b0
PH
2882Exim version 4.43
2883-----------------
2884
2885 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2886 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2887 Now it returns an integer. A number of calls were still expecting a T/F
2888 return. Fortuitously, in all cases, the tests worked in OK situations,
2889 which is the norm. However, things would have gone wrong on any write
2890 failures on the smtp file descriptor. This function is used when sending
2891 messages over SMTP and also when doing verify callouts.
2892
2893 2. When Exim is called to do synchronous delivery of a locally submitted
2894 message (the -odf or -odi options), it no longer closes stderr before doing
2895 the delivery.
2896
2897 3. Implemented the mua_wrapper option.
2898
2899 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2900
2901 5. Implemented the functions header_remove(), header_testname(),
2902 header_add_at_position(), and receive_remove_recipient(), and exported them
2903 to local_scan().
2904
2905 6. If an ACL "warn" statement specified the addition of headers, Exim already
2906 inserted X-ACL-Warn: at the start if there was no header name. However, it
2907 was not making this test for the second and subsequent header lines if
2908 there were newlines in the string. This meant that an invalid header could
2909 be inserted if Exim was badly configured.
2910
2911 7. Allow an ACL "warn" statement to add header lines at the start or after all
2912 the Received: headers, as well as at the end.
2913
2914 8. Added the rcpt_4xx retry error code.
2915
2916 9. Added postmaster_mailfrom=xxx to callout verification option.
2917
291810. Added mailfrom=xxxx to the callout verification option, for verify=
2919 header_sender only.
2920
292111. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2922 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2923
292412. Inserted some casts to stop certain compilers warning when using pointer
2925 differences as field lengths or precisions in printf-type calls (mostly
2926 affecting debugging statements).
2927
292813. Added optional readline() support for -be (dynamically loaded).
2929
293014. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2931 same clock tick as a message's arrival, so that its received time was the
2932 same as the "first fail" time on the retry record, and that message
2933 remained on the queue past the ultimate address timeout, every queue runner
2934 would try a delivery (because it was past the ultimate address timeout) but
2935 after another failure, the ultimate address timeout, which should have then
2936 bounced the address, did not kick in. This was a "< instead of <=" error;
2937 in most cases the first failure would have been in the next clock tick
2938 after the received time, and all would be well.
2939
294015. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2941 being recognized when the domain list was tested by the match_domain
2942 condition in an expansion string.
2943
294416. Added the ${str2b64: operator.
2945
294617. Exim was always calling setrlimit() to set a large limit for the number of
2947 processes, without checking whether the existing limit was already
2948 adequate. (It did check for the limit on file descriptors.) Furthermore,
2949 errors from getrlimit() and setrlimit() were being ignored. Now they are
2950 logged to the main and panic logs, but Exim does carry on, to try to do its
2951 job under whatever limits there are.
2952
295318. Imported PCRE 5.0.
2954
295519. Trivial typo in log message " temporarily refused connection" (the leading
2956 space).
2957
295820. If the log selector return_path_on_delivery was set and an address was
2959 redirected to /dev/null, the delivery process crashed because it assumed
2960 that a return path would always be set for a "successful" delivery. In this
2961 case, the whole delivery is bypassed as an optimization, and therefore no
2962 return path is set.
2963
296421. Internal re-arrangement: the function for sending a challenge and reading
2965 a response while authentication was assuming a zero-terminated challenge
2966 string. It's now changed to take a pointer and a length, to allow for
2967 binary data in such strings.
2968
296922. Added the cyrus_sasl authenticator (code supplied by MBM).
2970
297123. Exim was not respecting finduser_retries when seeking the login of the
2972 uid under which it was called; it was always trying 10 times. (The default
2973 setting of finduser_retries is zero.) Also, it was sleeping after the final
2974 failure, which is pointless.
2975
297624. Implemented tls_on_connect_ports.
2977
297825. Implemented acl_smtp_predata.
2979
298026. If the domain in control=submission is set empty, Exim assumes that the
2981 authenticated id is a complete email address when it generates From: or
2982 Sender: header lines.
2983
298427. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2985 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2986 chown and chgrp in /bin and hostname in /usr/bin.
2987
298828. Exim was keeping the "process log" file open after each use, just as it
2989 does for the main log. This opens the possibility of it remaining open for
2990 long periods when the USR1 signal hits a daemon. Occasional processlog
2991 errors were reported, that could have been caused by this. Anyway, it seems
2992 much more sensible not to leave this file open at all, so that is what now
2993 happens.
2994
299529. The long-running daemon process does not normally write to the log once it
2996 has entered its main loop, and it closes the log before doing so. This is
2997 so that log files can straightforwardly be renamed and moved. However,
2998 there are a couple of unusual error situations where the daemon does write
2999 log entries, and I had neglected to close the log afterwards.
3000
300130. The text of an SMTP error response that was received during a remote
3002 delivery was being truncated at 512 bytes. This is too short for some of
3003 the long messages that one sometimes sees. I've increased the limit to
3004 1024.
3005
300631. It is now possible to make retry rules that apply only when a message has a
3007 specific sender, in particular, an empty sender.
3008
300932. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3010 it possible to be selective about when SMTP synchronization is enforced.
3011
301233. Added "control = caseful_local_part" and "control = "caselower_local_part".
3013
301432. Implemented hosts_connection_nolog.
3015
301633. Added an ACL for QUIT.
3017
301834. Setting "delay_warning=" to disable warnings was not working; it gave a
3019 syntax error.
3020
302135. Added mailbox_size and mailbox_filecount to appendfile.
3022
302336. Added control = no_multiline_responses to ACLs.
3024
302537. There was a bug in the logic of the code that waits for the clock to tick
3026 in the case where the clock went backwards by a substantial amount such
3027 that the microsecond fraction of "now" was more than the microsecond
3028 fraction of "then" (but the whole seconds number was less).
3029
303038. Added support for the libradius Radius client library this is found on
3031 FreeBSD (previously only the radiusclient library was supported).
3032
3033
3034Exim version 4.42
3035-----------------
3036
3037 1. When certain lookups returned multiple values in the form name=value, the
3038 quoting of the values was not always being done properly. Specifically:
3039 (a) If the value started with a double quote, but contained no whitespace,
3040 it was not quoted.
3041 (b) If the value contained whitespace other than a space character (i.e.
3042 tabs or newlines or carriage returns) it was not quoted.
3043 This fix has been applied to the mysql and pgsql lookups by writing a
3044 separate quoting function and calling it from the lookup code. The fix
3045 should probably also be applied to nisplus, ibase and oracle lookups, but
3046 since I cannot test any of those, I have not disturbed their existing code.
3047
3048 2. A hit in the callout cache for a specific address caused a log line with no
3049 reason for rejecting RCPT. Now it says "Previous (cached) callout
3050 verification failure".
3051
3052 3. There was an off-by-one bug in the queryprogram router. An over-long
3053 return line was truncated at 256 instead of 255 characters, thereby
3054 overflowing its buffer with the terminating zero. As well as fixing this, I
3055 have increased the buffer size to 1024 (and made a note to document this).
3056
3057 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3058 when Exim is waiting for an SMTP response from a remote server, Exim
3059 restarts its select() call on the socket, thereby resetting its timeout.
3060 This is not a problem when such interrupts are rare. Somebody set up a cron
3061 job to run exiwhat every 2 minutes, which is less than the normal select()
3062 timeout (5 or 10 minutes). This meant that the select() timeout never
3063 kicked in because it was always reset. I have fixed this by comparing the
3064 time when an interrupt arrives with the time at the start of the first call
3065 to select(). If more time than the timeout has elapsed, the interrupt is
3066 treated as a timeout.
3067
3068 5. Some internal re-factoring in preparation for the addition of Sieve
3069 extensions (by MH). In particular, the "personal" test is moved to a
3070 separate function, and given an option for scanning Cc: and Bcc: (which is
3071 not set for Exim filters).
3072
3073 6. When Exim created an email address using the login of the caller as the
3074 local part (e.g. when creating a From: or Sender: header line), it was not
3075 quoting the local part when it contained special characters such as @.
3076
3077 7. Installed new OpenBSD configuration files.
3078
3079 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3080 try to make them clearer.
3081
3082 9. Callout options, other than the timeout value, were being ignored when
3083 verifying sender addresses in header lines. For example, when using
3084
3085 verify = header_sender/callout=no_cache
3086
3087 the cache was (incorrectly) being used.
3088
308910. Added a missing instance of ${EXE} to the exim_install script; this affects
3090 only the Cygwin environment.
3091
309211. When return_path_on_delivery was set as a log selector, if different remote
3093 addresses in the same message used different return paths and parallel
3094 remote delivery occurred, the wrong values would sometimes be logged.
3095 (Whenever a remote delivery process finished, the return path value from
3096 the most recently started remote delivery process was logged.)
3097
309812. RFC 3848 specifies standard names for the "with" phrase in Received: header
3099 lines when AUTH and/or TLS are in use. This is the "received protocol"
3100 field. Exim used to use "asmtp" for authenticated SMTP, without any
3101 indication (in the protocol name) for TLS use. Now it follows the RFC and
3102 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3103 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3104 names appear in log lines as well as in Received: header lines.
3105
310613. Installed MH's patches for Sieve to add the "copy" and "vacation"
3107 extensions, and comparison tests, and to fix some bugs.
3108
310914. Changes to the "personal" filter test:
3110
3111 (1) The test was buggy in that it was just doing the equivalent of
3112 "contains" tests on header lines. For example, if a user's address was
3113 anne@some.where, the "personal" test would incorrectly be true for
3114
3115 To: susanne@some.where
3116
3117 This test is now done by extracting each address from the header in turn,
3118 and checking the entire address. Other tests that are part of "personal"
3119 are now done using regular expressions (for example, to check local parts
3120 of addresses in From: header lines).
3121
3122 (2) The list of non-personal local parts in From: addresses has been
3123 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3124 taken from the Sieve specification recommendations.
3125
3126 (3) If the message contains any header line starting with "List-" it is
3127 treated as non-personal.
3128
3129 (4) The test for "circular" in the Subject: header line has been removed
3130 because it now seems ill-conceived.
3131
313215. Minor typos in src/EDITME comments corrected.
3133
313416. Installed latest exipick from John Jetmore.
3135
313617. If headers_add on a router specified a text string that was too long for
3137 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3138 of string_sprintf() is now avoided.
3139
314018. $message_body_size was not set (it was always zero) when running the DATA
3141 ACL and the local_scan() function.
3142
314319. For the "mail" command in an Exim filter, no default was being set for
3144 the once_repeat time, causing a random time value to be used if "once" was
3145 specified. (If the value happened to be <= 0, no repeat happened.) The
3146 default is now 0s, meaning "never repeat". The "vacation" command was OK
3147 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3148 (I found it when inspecting the code).
3149
315020. There is now an overall timeout for performing a callout verification. It
3151 defaults to 4 times the callout timeout, which applies to individual SMTP
3152 commands during the callout. The overall timeout applies when there is more
3153 than one host that can be tried. The timeout is checked before trying the
3154 next host. This prevents very long delays if there are a large number of
3155 hosts and all are timing out (e.g. when the network connections are timing
3156 out). The value of the overall timeout can be changed by specifying an
3157 additional sub-option for "callout", called "maxwait". For example:
3158
3159 verify = sender/callout=5s,maxwait=20s
3160
316121. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3162 to the end before writing, but this should make it even safer).
3163
316422. Exim was forgetting that it had advertised PIPELINING for the second and
3165 subsequent messages on an SMTP connection. It was also not resetting its
3166 memory on STARTTLS and an internal HELO.
3167
316823. When Exim logs an SMTP synchronization error within a session, it now
3169 records whether PIPELINING has been advertised or not.
3170
317124. Added 3 instances of "(long int)" casts to time_t variables that were being
3172 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3173 rather than long int.
3174
317525. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3176
317726. Added the never_mail option to autoreply.
3178
3179
3180Exim version 4.41
3181-----------------
3182
3183 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3184 crash if the getsockname() call failed; this can happen if a connection is
3185 closed very soon after it is established. The problem was simply in the
3186 order in which certain operations were done, causing Exim to try to write
3187 to the SMTP stream before it had set up the file descriptor. The bug has
3188 been fixed by making things happen in the correct order.
3189
3190
3191Exim version 4.40
3192-----------------
3193
3194 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3195 before the connection was closed, thus losing the rejection response.
3196
3197 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3198 some early Solaris releases, but causes trouble in current releases where
3199 socklen_t is defined.
3200
3201 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3202 always exist.
3203
3204 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3205 configured.
3206
3207 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3208 that releasing the top of it at the end releases what was used for sub-
3209 expansions (unless the block got too big). However, discard this block if
3210 the first thing is a variable or header, so that we can use its block when
3211 it is dynamic (useful for very large $message_headers, for example).
3212
3213 6. Lookups now cache *every* query, not just the most recent. A new, separate
3214 store pool is used for this. It can be recovered when all lookup caches are
3215 flushed. Lookups now release memory at the end of their result strings.
3216 This has involved some general refactoring of the lookup sources.
3217
3218 7. Some code has been added to the store_xxx() functions to reduce the amount
3219 of flapping under certain conditions.
3220
3221 8. log_incoming_interface used to affect only the <= reception log lines. Now
3222 it causes the local interface and port to be added to several more SMTP log
3223 lines, for example "SMTP connection from", and rejection lines.
3224
3225 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3226
322710. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3228
322911. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3230 could be overwritten at the end of the current message (or the start of a
3231 new message if it was set in a HELO ACL). The value is now preserved for
3232 the duration of the SMTP connection.
3233
323412. If a transport had a headers_rewrite setting, and a matching header line
3235 contained an unqualified address, that address was qualified, even if it
3236 did not match any rewriting rules. The underlying bug was that the values
3237 of the flags that permit the existence of unqualified sender and recipient
3238 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3239 non-local messages, and by -bnq for local messages) were not being
3240 preserved with the message after it was received.
3241
324213. When Exim was logging an SMTP synchronization error, it could sometimes log
3243 "next input=" as part of the text comprising the host identity instead of
3244 the correct text. The code was using the same buffer for two different
3245 strings. However, depending on which order the printing function evaluated
3246 its arguments, the bug did not always show up. Under Linux, for example, my
3247 test suite worked just fine.
3248
324914. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3250 doesn't work with some older versions of Perl. It has been changed to "my",
3251 which in any case is probably the better facility to use.
3252
325315. A really picky compiler found some instances of statements for creating
3254 error messages that either had too many or two few arguments for the format
3255 string.
3256
325716. The size of the buffer for calls to the DNS resolver has been increased
3258 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3259 for addresses that have a lot of PTR records. This alleviates a problem; it
3260 does not fully solve it.
3261
326217. A dnsdb lookup for PTR records that receives more data than will fit in the
3263 buffer now truncates the list and logs the incident, which is the same
3264 action as happens when Exim is looking up a host name and its aliases.
3265 Previously in this situation something unpredictable would happen;
3266 sometimes it was "internal error: store_reset failed".
3267
326818. If a server dropped the connection unexpectedly when an Exim client was
3269 using GnuTLS and trying to read a response, the client delivery process
3270 crashed while trying to generate an error log message.
3271
327219. If a "warn" verb in an ACL added multiple headers to a message in a single
3273 string, for example:
3274
3275 warn message = H1: something\nH2: something
3276
3277 the text was added as a single header line from Exim's point of view
3278 though it ended up OK in the delivered message. However, searching for the
3279 second and subsequent header lines using $h_h2: did not work. This has been
3280 fixed. Similarly, if a system filter added multiple headers in this way,
3281 the routers could not see them.
3282
328320. Expanded the error message when iplsearch is called with an invalid key to
3284 suggest using net-iplsearch in a host list.
3285
328621. When running tests using -bh, any delays imposed by "delay" modifiers in
3287 ACLs are no longer actually imposed (and a message to that effect is
3288 output).
3289
329022. If a "gecos" field in a passwd entry contained escaped characters, in
3291 particular, if it contained a \" sequence, Exim got it wrong when building
3292 a From: or a Sender: header from that name. A second bug also caused
3293 incorrect handling when an unquoted " was present following a character
3294 that needed quoting.
3295
329623. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3297 was not being matched caselessly.
3298
329924. Arranged for all hyphens in the exim.8 source to be escaped with
3300 backslashes.
3301
330225. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3303 properly. Recipient callout cache records were still being keyed to include
3304 the sender, even when use_sender was set false. This led to far more
3305 callouts that were necessary. The sender is no longer included in the key
3306 when use_sender is false.
3307
330826. Added "control = submission" modifier to ACLs.
3309
331027. Added the ${base62d: operator to decode base 62 numbers.
3311
331228. dnsdb lookups can now access SRV records.
3313
331429. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3315 the configuration file.
3316
331730. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3318 (-v) mode. This makes the output for a verbose queue run more intelligible.
3319
332031. Added a use_postmaster feature to recipient callouts.
3321
332232. Added the $body_zerocount variable, containing the number of binary zero
3323 bytes in the message body.
3324
332533. The time of last modification of the "new" subdirectory is now used as the
3326 "mailbox time last read" when there is a quota error for a maildir
3327 delivery.
3328
332934. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3330
333135. Added +ignore_unknown as a special item in host lists.
3332
333336. Code for decoding IPv6 addresses in host lists is now included, even if
3334 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3335 address was recognized as an IP address, but was then not correctly decoded
3336 into binary, causing unexpected and incorrect effects when compared with
3337 another IP address.
3338
3339
3340Exim version 4.34
3341-----------------
3342
3343 1. Very minor rewording of debugging text in manualroute to say "list of
3344 hosts" instead of "hostlist".
3345
3346 2. If verify=header_syntax was set, and a header line with an unqualified
3347 address (no domain) and a large number of spaces between the end of the
3348 name and the colon was received, the reception process suffered a buffer
3349 overflow, and (when I tested it) crashed. This was caused by some obsolete
3350 code that should have been removed. The fix is to remove it!
3351
3352 3. When running in the test harness, delay a bit after writing a bounce
3353 message to get a bit more predictability in the log output.
3354
3355 4. Added a call to search_tidyup() just before forking a reception process. In
3356 theory, someone could use a lookup in the expansion of smtp_accept_max_
3357 per_host which, without the tidyup, could leave open a database connection.
3358
3359 5. Added the variables $recipient_data and $sender_data which get set from a
3360 lookup success in an ACL "recipients" or "senders" condition, or a router
3361 "senders" option, similar to $domain_data and $local_part_data.
3362
3363 6. Moved the writing of debug_print from before to after the "senders" test
3364 for routers.
3365
3366 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3367 problems for message scanning, either using a data ACL, or using
3368 local_scan() because the Received: header was not generated till after they
3369 were called (in order to set the time as the time of reception completion).
3370 I have revised the way this works. The header is now generated after the
3371 body is received, but before the ACL or local_scan() are called. After they
3372 are run, the timestamp in the header is updated.
3373
3374
3375Exim version 4.33
3376-----------------
3377
3378 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3379 before starting a queue runner without re-exec. This happened only when
3380 deliver_drop_privilege was set or when the Exim user was set to root. The
3381 effect of the bug was that timeouts during subsequent deliveries caused
3382 crashes instead of being properly handled. The handler is now left at its
3383 default (and expected) setting.
3384
3385 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3386 message, again when deliver_drop_privilege is set or Exim is run as root.
3387 The bug described in (1) was not present in this case, but the tidying up
3388 of the other signals was missing. I have made the two cases consistent.
3389
3390 3. The ignore_target_hosts setting on a manualroute router was being ignored
3391 for hosts that were looked up using the /MX notation.
3392
3393 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3394 in domain lists.
3395
3396 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3397 operated on the sender address. After changing the $sender_address to <>
3398 for the sender address verify, Exim was re-instated it as the original
3399 (before rewriting) address, but remembering that it had rewritten it, so it
3400 wasn't rewriting it again. This bug also had the effect of breaking the
3401 sender address verification caching when the sender address was rewritten.
3402
3403 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3404 This has been changed so that if the ip literal address matches
3405 ignore_target_hosts, the router declines.
3406
3407 7. Added expansion conditions match_domain, match_address, and match_local_
3408 part (NOT match_host).
3409
3410 8. The placeholder for the Received: header didn't have a length field set.
3411
3412 9. Added code to Exim itself and to exim_lock to test for a specific race
3413 condition that could lead to file corruption when using MBX delivery. The
3414 issue is with the lockfile that is created in /tmp. If this file is removed
3415 after a process has opened it but before that process has acquired a lock,
3416 there is the potential for a second process to recreate the file and also
3417 acquire a lock. This could lead to two Exim processes writing to the file
3418 at the same time. The added code performs the same test as UW imapd; it
3419 checks after acquiring the lock that its file descriptor still refers to
3420 the same named file.
3421
342210. The buffer for building added header lines was of fixed size, 8192 bytes.
3423 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3424 when Exim is built.
3425
342611. Added the smtp_active_hostname option. If used, this will typically be made
3427 to depend on the incoming interface address. Because $interface_address is
3428 not set up until the daemon has forked a reception process, error responses
3429 that can happen earlier (such as "too many connections") no longer contain
3430 a host name.
3431
343212. If an expansion in a condition on a "warn" statement fails because a lookup
3433 defers, the "warn" statement is abandoned, and the next ACL statement is
3434 processed. Previously this caused the whole ACL to be aborted.
3435
343613. Added the iplsearch lookup type.
3437
343814. Added ident_timeout as a log selector.
3439
344015. Added tls_certificate_verified as a log selector.
3441
344216. Added a global option tls_require_ciphers (compare the smtp transport
3443 option of the same name). This controls incoming TLS connections.
3444
344517. I finally figured out how to make tls_require_ciphers do a similar thing
3446 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3447 before starting the TLS session.
3448
344918. Tabs are now shown as \t in -bP output.
3450
345119. If the log selector return_path_on_delivery was set, Exim crashed when
3452 bouncing a message because it had too many Received: header lines.
3453
345420. If two routers both had headers_remove settings, and the first one included
3455 a superfluous trailing colon, the final name in the first list and the
3456 first name in the second list were incorrectly joined into one item (with a
3457 colon in the middle).
3458
3459
3460Exim version 4.32
3461-----------------
3462
3463 1. Added -C and -D options to the exinext utility, mainly to make it easier
3464 to include in the automated testing, but these could be helpful when
3465 multiple configurations are in use.
3466
3467 2. The exinext utility was not formatting the output nicely when there was
3468 an alternate port involved in the retry record key, nor when there was a
3469 message id as well (for retries that were specific to a specific message
3470 and a specific host). It was also confused by IPv6 addresses, because of
3471 the additional colons they contain. I have fixed the IPv4 problem, and
3472 patched it up to do a reasonable job for IPv6.
3473
3474 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3475 delivery, the log line now contains "pipelined" if PIPELINING was used.
3476
3477 4. An SMTP transport process used to panic and die if the bind() call to set
3478 an explicit outgoing interface failed. This has been changed; it is now
3479 treated in the same way as a connect() failure.
3480
3481 5. A reference to $sender_host_name in the part of a conditional expansion
3482 that was being skipped was still causing a DNS lookup. This no longer
3483 occurs.
3484
3485 6. The def: expansion condition was not recognizing references to header lines
3486 that used bh_ and bheader_.
3487
3488 7. Added the _cache feature to named lists.
3489
3490 8. The code for checking quota_filecount in the appendfile transport was
3491 allowing one more file than it should have been.
3492
3493 9. For compatibility with Sendmail, the command line option
3494
3495 -prval:sval
3496
3497 is equivalent to
3498
3499 -oMr rval -oMs sval
3500
3501 and sets the incoming protocol and host name (for trusted callers). The
3502 host name and its colon can be omitted when only the protocol is to be set.
3503 Note the Exim already has two private options, -pd and -ps, that refer to
3504 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3505 "s", but I don't think that's a major issue.
3506
350710. A number of refactoring changes to the code, none of which should affect
3508 Exim's behaviour:
3509
3510 (a) The number of logging options was getting close to filling up the
3511 32-bit word that was used as a bit map. I have split them into two classes:
3512 those that are passed in the argument to log_write(), and those that are
3513 only ever tested independently outside of that function. These are now in
3514 separate 32-bit words, so there is plenty of room for expansion again.
3515 There is no change in the user interface or the logging behaviour.
3516
3517 (b) When building, for example, log lines, the code previously used a
3518 macro that called string_cat() twice, in order to add two strings. This is
3519 not really sufficiently general. Furthermore, there was one instance where
3520 it was actually wrong because one of the argument was used twice, and in
3521 one call a function was used. (As it happened, calling the function twice
3522 did not affect the overall behaviour.) The macro has been replaced by a
3523 function that can join an arbitrary number of extra strings onto a growing
3524 string.
3525
3526 (c) The code for expansion conditions now uses a table and a binary chop
3527 instead of a serial search (which was left over from when there were very
3528 few conditions). Also, it now recognizes conditions like "pam" even when
3529 the relevant support is not compiled in: a suitably worded error message is
3530 given if an attempt is made to use such a condition.
3531
353211. Added ${time_interval:xxxxx}.
3533
353412. A bug was causing one of the ddress fields not to be passed back correctly
3535 from remote delivery subprocesses. The field in question was not being
3536 subsequently used, so this caused to problems in practice.
3537
353813. Added new log selectors queue_time and deliver_time.
3539
354014. Might have fixed a bug in maildirsizefile handling that threw up
3541 "unexpected character" debug warnings, and recalculated the data
3542 unnecessarily. In any case, I expanded the warning message to give more