A test for the encoded-character extention.
[exim.git] / doc / doc-txt / ChangeLog
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06864c44 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.543 2008/02/06 18:57:46 fanf2 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
NM
6Exim version 4.70
7-----------------
8
9NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
10 When building exim an external PCRE library is now needed -
11 PCRE is a system library on the majority of modern systems.
12 See entry on PCRE_LIBS in EDITME file.
13
deafd5b3
NM
14NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
15 conversation. Added nologin parameter to request.
16 Patch contributed by Kirill Miazine
17
089793a4
TF
18TF/01 Do not log submission mode rewrites if they do not change the address.
19
5f16ca82
TF
20TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
21
dae9d94e
NM
22NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
23 log files in place. Contributed by Roberto Lima
24
3f0da4d0
NM
25NM/04 Bugzilla 667: close socket used by dovecot authenticator
26
06864c44
TF
27TF/03 Bugzilla 615: When checking the local_parts router precondition
28 after a local_part_suffix or local_part_prefix option, Exim now
29 does not use the address's named list lookup cache, since this
30 contains cached lookups for the whole local part.
31
deafd5b3 32
47db1125
NM
33Exim version 4.69
34-----------------
35
4b3504d0
TK
36TK/01 Add preliminary DKIM support. Currently requires a forked version of
37 ALT-N's libdkim that I have put here:
38 http://duncanthrax.net/exim-experimental/
39
40 Note to Michael Haardt: I had to rename some vars in sieve.c. They
41 were called 'true' and it seems that C99 defines that as a reserved
42 keyword to be used with 'bool' variable types. That means you could
43 not include C99-style headers which use bools without triggering
44 build errors in sieve.c.
45
81ea09ca
NM
46NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
47 as mailq or other aliases. Changed the --help handling significantly
48 to do whats expected. exim_usage() emits usage/help information.
49
f13cddcb
SC
50SC/01 Added the -bylocaldomain option to eximstats.
51
8ad076b2
NM
52NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
53
a843aaa6
NM
54NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
55
47db1125
NM
56NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
57
58
eb4c0de6
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59Exim version 4.68
60-----------------
61
62PH/01 Another patch from the Sieve maintainer.
63
6a3bceb1
PH
64PH/02 When an IPv6 address is converted to a string for single-key lookup
65 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
66 dots are used instead of colons so that keys in lsearch files need not
67 contain colons. This was done some time before quoting was made available
68 in lsearch files. However, iplsearch files do require colons in IPv6 keys
69 (notated using the quote facility) so as to distinguish them from IPv4
70 keys. This meant that lookups for IP addresses in host lists did not work
71 for iplsearch lookups.
72
73 This has been fixed by arranging for IPv6 addresses to be expressed with
74 colons if the lookup type is iplsearch. This is not incompatible, because
75 previously such lookups could never work.
76
77 The situation is now rather anomolous, since one *can* have colons in
78 ordinary lsearch keys. However, making the change in all cases is
79 incompatible and would probably break a number of configurations.
80
2e30fa9d
TK
81TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
82 version.
83
0806a9c5
MH
84MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
85 conversion specification without a maximum field width, thereby enabling
86 a rogue spamd server to cause a buffer overflow. While nobody in their
87 right mind would setup Exim to query an untrusted spamd server, an
88 attacker that gains access to a server running spamd could potentially
89 exploit this vulnerability to run arbitrary code as the Exim user.
90
ae276964
TK
91TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
92 $primary_hostname instead of what libspf2 thinks the hosts name is.
93
0f2cbd1b
MH
94MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
95 a directory entry by the name of the lookup key. Previously, if a
96 symlink pointed to a non-existing file or a file in a directory that
97 Exim lacked permissions to read, a lookup for a key matching that
98 symlink would fail. Now it is enough that a matching directory entry
99 exists, symlink or not. (Bugzilla 503.)
100
2b85bce7
PH
101PH/03 The body_linecount and body_zerocount variables are now exported in the
102 local_scan API.
103
93655c46
PH
104PH/04 Added the $dnslist_matched variable.
105
6c512171
PH
106PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
107 This means they are set thereafter only if the connection becomes
108 encrypted.
109
110PH/06 Added the client_condition to authenticators so that some can be skipped
111 by clients under certain conditions.
112
aa6dc513
PH
113PH/07 The error message for a badly-placed control=no_multiline_responses left
114 "_responses" off the end of the name.
115
a96603a0
PH
116PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
117
8f240103
PH
118PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
119 (without spaces) instead of just copying the configuration text.
120
121PH/10 Added the /noupdate option to the ratelimit ACL condition.
122
d677b2f2
PH
123PH/11 Added $max_received_linelength.
124
d52120f2
PH
125PH/12 Added +ignore_defer and +include_defer to host lists.
126
64f2600a
PH
127PH/13 Installed PCRE version 7.2. This needed some changes because of the new
128 way in which PCRE > 7.0 is built.
129
8669f003
PH
130PH/14 Implemented queue_only_load_latch.
131
a4dc33a8
PH
132PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
133 MAIL command. The effect was to mangle the value on 64-bit systems.
134
d6a60c0f
PH
135PH/16 Another patch from the Sieve maintainer.
136
8f128379
PH
137PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
138
8932dffe
PH
139PH/18 If a system quota error occurred while trying to create the file for
140 a maildir delivery, the message "Mailbox is full" was not appended to the
141 bounce if the delivery eventually timed out. Change 4.67/27 below applied
142 only to a quota excession during the actual writing of the file.
d6a60c0f 143
ddea74fa 144PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
145 characters?) which causes problems in log lines. The DN values are now
146 passed through string_printing() before being added to log lines.
147
ddea74fa 148PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
149 and InterBase are left for another time.)
150
ddea74fa
PH
151PH/21 Added message_body_newlines option.
152
ce9f225c
PH
153PH/22 Guard against possible overflow in moan_check_errorcopy().
154
19897d52
PH
155PH/23 POSIX allows open() to be a macro; guard against that.
156
bc64a74d
PH
157PH/24 If the recipient of an error message contained an @ in the local part
158 (suitably quoted, of course), incorrect values were put in $domain and
159 $local_part during the evaluation of errors_copy.
160
eb4c0de6 161
b4ed4da0
PH
162Exim version 4.67
163-----------------
164
22ad45c9
MH
165MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
166 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
167 Jan Srzednicki.
168
b4ed4da0
PH
169PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
170 issue a MAIL command.
171
431b7361
PH
172PH/02 In an ACL statement such as
173
174 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
175
176 if a client was not listed at all, or was listed with a value other than
177 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
178 the condition was not true (as it should be), so access was not denied.
179 The bug was that the ! inversion was incorrectly passed on to the second
180 item. This has been fixed.
181
182PH/03 Added additional dnslists conditions == and =& which are different from
183 = and & when the dns lookup returns more than one IP address.
184
83da1223
PH
185PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
186 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
187
54fc8428
PH
188PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
189 FSYNC, which compiles an option called disable_fsync that allows for
190 bypassing fsync(). The documentation is heavily laced with warnings.
191
34c5e8dd
SC
192SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
193
bbe15da8
PH
194PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
195 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
196 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
197 including adding "make clean"; (3) Added -fPIC when compiling the test
198 dynamically loaded module, to get rid of a warning.
199
0e8a9471
MH
200MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
201 message fails, move_frozen_messages = true and ignore_bounce_errors_after
202 = 0s. The bug is otherwise harmless.
203
f0872424
PH
204PH/07 There was a bug in the dovecot authenticator such that the value of
205 $auth1 could be overwritten, and so not correctly preserved, after a
206 successful authentication. This usually meant that the value preserved by
207 the server_setid option was incorrect.
208
b01dd148
PH
209PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
210
6bf342e1
PH
211PH/09 Installed PCRE release 7.0.
212
273f34d0
PH
213PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
214 run for batched SMTP input. It is now run at the start of every message
215 in the batch. While fixing this I discovered that the process information
216 (output by running exiwhat) was not always getting set for -bs and -bS
217 input. This is fixed, and it now also says "batched" for BSMTP.
218
cf8b11a5
PH
219PH/11 Added control=no_pipelining.
220
41c7c167
PH
221PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
222 patch, slightly modified), and move the expansion of helo_data till after
223 the connection is made in the smtp transport (so it can use these
224 values).
225
9c57cbc0
PH
226PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
227
f3f065bb
PH
228PH/14 Added log_selector = +pid.
229
047bdd8c
PH
230PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
231
0ce9abe6
PH
232PH/16 Add ${if forany and ${if forall.
233
0e22dfd1
PH
234PH/17 Added dsn_from option to vary the From: line in DSNs.
235
4c590bd1
PH
236PH/18 Flush SMTP output before performing a callout, unless control =
237 no_callout_flush is set.
238
09945f1e
PH
239PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
240 was true (the default) a successful delivery failed to delete the retry
241 item, thus causing premature timeout of the address. The bug is now
242 fixed.
243
c51b8e75
PH
244PH/20 Added hosts_avoid_pipelining to the smtp transport.
245
e28326d8
PH
246PH/21 Long custom messages for fakedefer and fakereject are now split up
247 into multiline reponses in the same way that messages for "deny" and
248 other ACL rejections are.
249
75b1493f
PH
250PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
251 with slight modification.
252
7c5214ec
PH
253PH/23 Applied sieve patches from the maintainer "tracking the latest notify
254 draft, changing the syntax and factoring some duplicate code".
255
4311097e
PH
256PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
257 for deliveries of the second and subsequent messages over the same SMTP
258 connection.
259
29f89cad
PH
260PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
261 ${reduce, with only minor "tidies".
262
5e687460
SC
263SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
264
c3611384
PH
265PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
266 expansion side effects.
267
5a11a7b4
PH
268PH/27 When a message times out after an over-quota error from an Exim-imposed
269 quota, the bounce message says "mailbox is full". This message was not
270 being given when it was a system quota that was exceeded. It now should
271 be the same.
272
0e20aff9
MH
273MH/03 Made $recipients available in local_scan(). local_scan() already has
274 better access to the recipient list through recipients_list[], but
275 $recipients can be useful in postmaster-provided expansion strings.
276
ca86f471
PH
277PH/28 The $smtp_command and $smtp_command_argument variables were not correct
278 in the case of a MAIL command with additional options following the
279 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
280 were accidentally chopped off.
281
a14e5636
PH
282PH/29 SMTP synchronization checks are implemented when a command is read -
283 there is a check that no more input is waiting when there shouldn't be
284 any. However, for some commands, a delay in an ACL can mean that it is
285 some time before the response is written. In this time, more input might
286 arrive, invalidly. So now there are extra checks after an ACL has run for
287 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
288 pipelining has not been advertised.
289
ec95d1a6
PH
290PH/30 MH's patch to allow iscntrl() characters to be list separators.
291
42855d71
PH
292PH/31 Unlike :fail:, a custom message specified with :defer: was not being
293 returned in the SMTP response when smtp_return_error_details was false.
294 This has been fixed.
295
57c2c631
PH
296PH/32 Change the Dovecot authenticator to use read() and write() on the socket
297 instead of the C I/O that was originally supplied, because problems were
298 reported on Solaris.
299
58c01c94
PH
300PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
301 Exim which did not show up earlier: it was assuming that a call to
302 SSL_CTX_set_info_callback() might give an error value. In fact, there is
303 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
304 was a macro that became an assignment, so it seemed to work. This has
305 changed to a proper function call with a void return, hence the compile
306 error. Exim's code has been fixed.
307
dee5a20a
PH
308PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
309 cpus.
310
d2ee6114
PH
311PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
312
b2d5182b
PH
313PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
314
79749a79
PH
315PH/37 If a message is not accepted after it has had an id assigned (e.g.
316 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
317 "Completed" line in the log. When some messages of this type were
318 selected by exigrep, they were listed as "not completed". Others were
319 picked up by some special patterns. I have improved the selection
320 criteria to be more general.
79749a79 321
c456d9bb
PH
322PH/38 The host_find_failed option in the manualroute router can now be set
323 to "ignore", to completely ignore a host whose IP address cannot be
324 found. If all hosts are ignored, the behaviour is controlled by the new
325 host_all_ignored option.
326
cd9868ec
PH
327PH/39 In a list of hosts for manualroute, if one item (either because of multi-
328 homing or because of multiple MX records with /mx) generated more than
329 one IP address, and the following item turned out to be the local host,
330 all the secondary addresses of the first item were incorrectly removed
331 from the list, along with the local host and any following hosts (which
332 is what is supposed to happen).
333
ebeaf996
PH
334PH/40 When Exim receives a message, it writes the login name, uid, and gid of
335 whoever called Exim into the -H file. In the case of the daemon it was
336 behaving confusingly. When first started, it used values for whoever
337 started the daemon, but after a SIGHUP it used the Exim user (because it
338 calls itself on a restart). I have changed the code so that it now always
339 uses the Exim user.
340
2679d413
PH
341PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
342 message are rejected with the same error (e.g. no authentication or bad
343 sender address), and a DATA command is nevertheless sent (as can happen
344 with PIPELINING or a stupid MUA), the error message that was given to the
345 RCPT commands is included in the rejection of the DATA command. This is
346 intended to be helpful for MUAs that show only the final error to their
347 users.
348
84024b72
PH
349PH/42 Another patch from the Sieve maintainer.
350
8005d38e
SC
351SC/02 Eximstats - Differentiate between permanent and temporary rejects.
352 Eximstats - Fixed some broken HTML links and added missing column headers
353 (Jez Hancock).
354 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
355 columns for Rejects, Temp Rejects, Ham, and Spam rows.
356
3298c6c6
SC
357SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
358
a43a27c5
PH
359PH/43 Yet another patch from the Sieve maintainer.
360
58eb016e 361PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
362 the response to the final '.' that terminates a message, but only in the
363 case where the client has not sent further data following the '.'
364 (unfortunately, this is allowed). However, in many cases there won't be
365 any further data because there won't be any more messages to send. A call
366 to select() can be used: if it shows that the input is "ready", there is
367 either input waiting, or the socket has been closed. An attempt to read
368 the next input character can distinguish the two cases. Previously, Exim
58eb016e 369 would have sent an OK response which the client would never have see.
563b63fa
PH
370 This could lead to message repetition. This fix should cure that, at
371 least in a lot of common cases.
58eb016e 372
b43a74ea
PH
373PH/45 Do not advertise STARTTLS in response to HELP unless it would be
374 advertised in response to EHLO.
375
b4ed4da0 376
5dd1517f
PH
377Exim version 4.66
378-----------------
379
380PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
381 fixed by 4.65/MH/01 (is this a record?) are fixed:
382
383 (i) An empty string was always treated as zero by the numeric comparison
384 operators. This behaviour has been restored.
385
386 (ii) It is documented that the numeric comparison operators always treat
387 their arguments as decimal numbers. This was broken in that numbers
388 starting with 0 were being interpreted as octal.
389
390 While fixing these problems I realized that there was another issue that
391 hadn't been noticed. Values of message_size_limit (both the global option
392 and the transport option) were treated as octal if they started with 0.
393 The documentation was vague. These values are now always treated as
394 decimal, and I will make that clear in the documentation.
395
396
93cfa765
TK
397Exim version 4.65
398-----------------
399
400TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
401 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
402 versions. (#438)
403
d6066548
MH
404MH/01 Don't check that the operands of numeric comparison operators are
405 integers when their expansion is in "skipping" mode (fixes bug
406 introduced by 4.64-PH/07).
407
4362ff0d
PH
408PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
409 child addresses, Exim now panics and dies. Previously, because the count
410 is held in a short int, deliveries were likely to be lost. As such a
411 large number of recipients for a single message is ridiculous
412 (performance will be very, very poor), I have chosen to impose a limit
413 rather than extend the field.
414
93cfa765 415
944e9e9c
TF
416Exim version 4.64
417-----------------
aa41d2de 418
21d74bd9
TK
419TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
420 leftover -K file (the existence of which was triggered by #402).
421 While we were at it, introduced process PID as part of the -K
422 filename. This should rule out race conditions when creating
423 these files.
424
425TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
426 processing considerably. Previous code took too long for large mails,
427 triggering a timeout which in turn triggers #401.
428
429TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
430 in the DK code in transports.c. sendfile() is not really portable,
431 hence the _LINUX specificness.
944e9e9c
TF
432
433TF/01 In the add_headers option to the mail command in an Exim filter,
434 there was a bug that Exim would claim a syntax error in any
435 header after the first one which had an odd number of characters
436 in the field name.
437
2b1c6e3a
PH
438PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
439 callout verification, Exim cached a "reject" for the entire domain. This
440 is correct for most verifications, but it is not correct for a recipient
441 verification with use_sender or use_postmaster set, because in that case
442 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
443 case of MAIL FROM:<> rejection from other early rejections (e.g.
444 rejection of HELO). When verifying a recipient using a non-null MAIL
445 address, the cache is ignored if it shows MAIL FROM:<> rejection.
446 Whatever the result of the callout, the value of the domain cache is
447 left unchanged (for any other kind of callout, getting as far as trying
448 RCPT means that the domain itself is ok).
449
1f872c80
PH
450PH/02 Tidied a number of unused variable and signed/unsigned warnings that
451 gcc 4.1.1 threw up.
452
453PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
454 manifest itself as EPIPE rather than ECONNECT. When tidying away a
455 session, the daemon ignores ECONNECT errors and logs others; it now
456 ignores EPIPE as well.
457
d203e649
PH
458PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
459 (quoted-printable decoding).
460
cc2ed8f7 461PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 462 later the small subsequent patch to fix an introduced bug.
f951fd57 463
ddfcd446
PH
464PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
465
d45b1de8
PH
466PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
467
468PH/08 An error is now given if message_size_limit is specified negative.
469
38a0a95f 470PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 471 to be given (somewhat) arbitrary names.
38a0a95f 472
a2405d83
JJ
473JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
474 in 4.64-PH/09.
475
476JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
477 miscellaneous code fixes
478
6ea85e9a
PH
479PH/10 Added the log_reject_target ACL modifier to specify where to log
480 rejections.
481
26da7e20
PH
482PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
483 hostname. This is wrong, because it relates to the incoming message (and
484 probably the interface on which it is arriving) and not to the outgoing
485 callout (which could be using a different interface). This has been
486 changed to use the value of the helo_data option from the smtp transport
487 instead - this is what is used when a message is actually being sent. If
488 there is no remote transport (possible with a router that sets up host
489 addresses), $smtp_active_hostname is used.
6ea85e9a 490
14aa5a05 491PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 492 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
493 (a) The code assumed that strncpy() returns a negative number on buffer
494 overflow, which isn't the case. Replaced with Exim's string_format()
495 function.
496 (b) There were several signed/unsigned issues. I just did the minimum
497 hacking in of casts. There is scope for a larger refactoring.
498 (c) The code used strcasecmp() which is not a standard C function.
499 Replaced with Exim's strcmpic() function.
500 (d) The code set only $1; it now sets $auth1 as well.
501 (e) A simple test gave the error "authentication client didn't specify
502 service in request". It would seem that Dovecot has changed its
503 interface. Fortunately there's a specification; I followed it and
504 changed what the client sends and it appears to be working now.
505
ff75a1f7
PH
506PH/13 Added $message_headers_raw to provide the headers without RFC 2047
507 decoding.
508
e6f6568e
PH
509PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
510 address A is aliased to B and C, where B exists and C does not. Without
511 -v the output is "A verified" because verification stops after a
512 successful redirection if more than one address is generated. However,
513 with -v the child addresses are also verified. Exim was outputting "A
514 failed to verify" and then showing the successful verification for C,
515 with its parentage. It now outputs "B failed to verify", showing B's
516 parentage before showing the successful verification of C.
517
d6f6e0dc
PH
518PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
519 look up a TXT record in a specific list after matching in a combined
520 list.
521
322050c2
PH
522PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
523 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
524 they consult the DNS. I had assumed they would set it the way they
525 wanted; and indeed my experiments on Linux seem to show that in some
526 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
527 To be on the safe side, however, I have now made the interface to
528 host_find_byname() similar to host_find_bydns(), with an argument
529 containing the DNS resolver options. The host_find_byname() function now
530 sets these options at its start, just as host_find_bydns() does. The smtp
531 transport options dns_qualify_single and dns_search_parents are passed to
532 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
533 of host_find_byname() use the default settings of RES_DEFNAMES
534 (qualify_single) but not RES_DNSRCH (search_parents).
535
08955dd3
PH
536PH/17 Applied (a modified version of) Nico Erfurth's patch to make
537 spool_read_header() do less string testing, by means of a preliminary
538 switch on the second character of optional "-foo" lines. (This is
539 overdue, caused by the large number of possibilities that now exist.
540 Originally there were few.) While I was there, I also converted the
541 str(n)cmp tests so they don't re-test the leading "-" and the first
542 character, in the hope this might squeeze out yet more improvement.
543
1eccaa59
PH
544PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
545 flag allowing group syntax was set by the header_syntax check but not
546 turned off, possible causing trouble later; (2) The flag was not being
547 set at all for the header_verify test, causing "group"-style headers to
548 be rejected. I have now set it in this case, and also caused header_
549 verify to ignore an empty address taken from a group. While doing this, I
550 came across some other cases where the code for allowing group syntax
551 while scanning a header line wasn't quite right (mostly, not resetting
552 the flag correctly in the right place). These bugs could have caused
553 trouble for malformed header lines. I hope it is now all correct.
554
602e59e5
PH
555PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
556 with the "reply" argument non-NULL. The code, however (which originally
557 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
558 but it didn't always do it. This confused somebody who was copying the
559 code for some other use. I have removed all the tests.
560
411ef850
PH
561PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
562 feature that was used to support insecure browsers during the U.S. crypto
563 embargo. It requires special client support, and Exim is probably the
564 only MTA that supported it -- and would never use it because real RSA is
565 always available. This code has been removed, because it had the bad
566 effect of slowing Exim down by computing (never used) parameters for the
567 RSA_EXPORT functionality.
568
7befa435
PH
569PH/21 On the advice of Timo Sirainen, added a check to the dovecot
570 authenticator to fail if there's a tab character in the incoming data
571 (there should never be unless someone is messing about, as it's supposed
572 to be base64-encoded). Also added, on Timo's advice, the "secured" option
573 if the connection is using TLS or if the remote IP is the same as the
574 local IP, and the "valid-client-cert option" if a client certificate has
575 been verified.
576
48da4259 577PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
578 authenticators. This can be used for authorization after authentication
579 succeeds. (In the case of plaintext, it servers for both authentication
580 and authorization.)
581
48da4259
PH
582PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
583 if any retry times were supplied.
584
d1d5595c
PH
585PH/24 Exim crashed if verify=helo was activated during an incoming -bs
586 connection, where there is no client IP address to check. In this
587 situation, the verify now always succeeds.
588
0ef732d9
PH
589PH/25 Applied John Jetmore's -Mset patch.
590
328895cc
PH
591PH/26 Added -bem to be like -Mset, but loading a message from a file.
592
fd700877
PH
593PH/27 In a string expansion for a processed (not raw) header when multiple
594 headers of the same name were present, leading whitespace was being
595 removed from all of them, but trailing whitespace was being removed only
596 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
597 before concatenation. Completely empty headers in a concatenation (as
598 before) are ignored.
fd700877 599
8dce1a6f
PH
600PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
601 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
602
17af4a17
PH
603PH/29 [Removed. This was a change that I later backed out, and forgot to
604 correct the ChangeLog entry (that I had efficiently created) before
605 committing the later change.]
f6c332bd
PH
606
607PH/30 Exim was sometimes attempting to deliver messages that had suffered
608 address errors (4xx response to RCPT) over the same connection as other
609 messages routed to the same hosts. Such deliveries are always "forced",
610 so retry times are not inspected. This resulted in far too many retries
611 for the affected addresses. The effect occurred only when there were more
612 hosts than the hosts_max_try setting in the smtp transport when it had
613 the 4xx errors. Those hosts that it had tried were not added to the list
614 of hosts for which the message was waiting, so if all were tried, there
615 was no problem. Two fixes have been applied:
616
617 (i) If there are any address or message errors in an SMTP delivery, none
618 of the hosts (tried or untried) are now added to the list of hosts
619 for which the message is waiting, so the message should not be a
620 candidate for sending over the same connection that was used for a
621 successful delivery of some other message. This seems entirely
622 reasonable: after all the message is NOT "waiting for some host".
623 This is so "obvious" that I'm not sure why it wasn't done
624 previously. Hope I haven't missed anything, but it can't do any
625 harm, as the worst effect is to miss an optimization.
626
627 (ii) If, despite (i), such a delivery is accidentally attempted, the
628 routing retry time is respected, so at least it doesn't keep
629 hammering the server.
630
c1114884
PH
631PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
632 in ${readsocket because some servers need this prod.
633
7a0743eb
PH
634PH/32 Added some extra debug output when updating a wait-xxx database.
635
0d85fa3f
PH
636PH/33 The hint "could be header name not terminated by colon", which has been
637 given for certain expansion errors for a long time, was not being given
638 for the ${if def:h_colon_omitted{... case.
639
1bf43b78
PH
640PH/34 The spec says: "With one important exception, whenever a domain list is
641 being scanned, $domain contains the subject domain." There was at least
642 one case where this was not true.
643
520de300
PH
644PH/35 The error "getsockname() failed: connection reset by peer" was being
645 written to the panic log as well as the main log, but it isn't really
646 panic-worthy as it just means the connection died rather early on. I have
647 removed the panic log writing for the ECONNRESET error when getsockname()
648 fails.
649
48c7f9e2
PH
650PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
651 runs only) independently of the message's sender address. This meant
652 that, if the 4xx error was in fact related to the sender, a different
653 message to the same recipient with a different sender could confuse
654 things. In particualar, this can happen when sending to a greylisting
655 server, but other circumstances could also provoke similar problems.
656 I have changed the default so that the retry time for these errors is now
657 based a combination of the sender and recipient addresses. This change
658 can be overridden by setting address_retry_include_sender=false in the
659 smtp transport.
660
99ea1c86
PH
661PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
662 remote server are returned as part of bounce messages. This was not
663 happening for LMTP over a pipe (the lmtp transport), but now it is the
664 same for both kinds of LMTP.
665
a2042e78
PH
666PH/38 Despite being documented as not happening, Exim was rewriting addresses
667 in header lines that were in fact CNAMEs. This is no longer the case.
668
4fbcfc2e
PH
669PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
670 and queue runs started by the daemon processed all messages. This has
671 been fixed so that -R and -S can now usefully be given with -q<time>.
672
aa41d2de
PH
673PH/40 Import PCRE release 6.7 (fixes some bugs).
674
af561417
PH
675PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
676
3cc66b45
PH
677PH/42 Give an error if -q is specified more than once.
678
194cc0e4
PH
679PH/43 Renamed the variables $interface_address and $interface_port as
680 $received_ip_address and $received_port, to make it clear that these
681 values apply to message reception, and not to the outgoing interface when
682 a message is delivered. (The old names remain recognized, of course.)
683
a401ddaa
PH
684PH/44 There was no timeout on the connect() call when using a Unix domain
685 socket in the ${readsocket expansion. There now is.
686
4e88a19f
PH
687PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
688 be meaningful with "accept".
689
d7d7b289
SC
690SC/01 Eximstats V1.43
691 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
692
693SC/02 Eximstats V1.44
694 Use a glob alias rather than an array ref in the generated
695 parser. This improves both readability and performance.
696
697SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
698 Collect SpamAssassin and rejection statistics.
699 Don't display local sender or destination tables unless
700 there is data to show.
701 Added average volumes into the top table text output.
702
703SC/04 Eximstats V1.46
704 Collect data on the number of addresses (recipients)
705 as well as the number of messages.
706
707SC/05 Eximstats V1.47
708 Added 'Message too big' to the list of mail rejection
709 reasons (thanks to Marco Gaiarin).
710
711SC/06 Eximstats V1.48
712 Mainlog lines which have GMT offsets and are too short to
713 have a flag are now skipped.
714
715SC/07 Eximstats V1.49 (Alain Williams)
716 Added the -emptyok flag.
717
718SC/08 Eximstats V1.50
719 Fixes for obtaining the IP address from reject messages.
720
0ea2a468
JJ
721JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
722 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
723 whitesspace changes from 4.64-PH/27
724
725JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
726 match 4.64-PH/13
727
728JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
729 are found, allow negative numbers in numeric criteria)
730
731JJ/06 exipick.20061117.2, added new $message_body_missing variable
732
733JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
734 to match changes made in 4.64-PH/43
735
8a10f5a4
PH
736PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
737
30e18802
PH
738PH/47 Put in an explicit test for a DNS lookup of an address record where the
739 "domain" is actually an IP address, and force a failure. This locks out
740 those revolvers/nameservers that support "A-for-A" lookups, in
741 contravention of the specifications.
742
55728a4f
PH
743PH/48 When a host name was looked up from an IP address, and the subsequent
744 forward lookup of the name timed out, the host name was left in
745 $sender_host_name, contrary to the specification.
d7d7b289 746
d7837193
PH
747PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
748 restricted to single-key lookups, Exim was not diagnosing an error if
749 * or *@ was used with a query-style lookup.
750
87054a31
PH
751PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
752
ea2c01d2
MH
753MH/01 local_scan ABI version incremented to 1.1. It should have been updated
754 long ago, but noone interested enough thought of it. Let's just say that
755 the "1.1" means that there are some new functions that weren't there at
756 some point in the past.
757
e4fa6968
PH
758PH/51 Error processing for expansion failure of helo_data from an smtp
759 transport during callout processing was broken.
760
56f5d9bd
PH
761PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
762 tested/used via the -bh/-bhc/-bs options.
763
922e1c28
PH
764PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
765 bug, fixed in subsequent PCRE releases).
766
21eb6e72
PH
767PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
768 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
769
a0540757
PH
770PH/55 Check for a ridiculously long file name in exim_dbmbuild.
771
944e9e9c 772
478be7b0
SC
773Exim version 4.63
774-----------------
775
776SC/01 Use a glob alias rather than an array ref in eximstats generated
777 parser. This improves both readability and performance.
778
779SC/02 Collect SpamAssassin and rejection statistics in eximstats.
780 Don't display local sender or destination tables in eximstats unless
781 there is data to show.
782 Added average volumes into the eximstats top table text output.
783
784SC/03 Collect data on the number of addresses (recipients) as well
785 as the number of messages in eximstats.
786
2b965a65
TF
787TF/01 Correct an error in the documentation for the redirect router. Exim
788 does (usually) call initgroups() when daemonizing.
478be7b0 789
45b91596
PH
790TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
791 with consistent privilege compared to when running as a daemon.
478be7b0 792
c59f5781
TF
793TF/03 Note in the spec that $authenticated_id is not set for local
794 submissions from trusted users.
795
90fc3069
TF
796TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
797 Thanks to Dean Brooks <dean@iglou.com> for the patch.
798
6083aca0
TF
799TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
800 by adding some example configuration directives to the default
801 configuration file. A little bit of work is required to uncomment the
802 directives and define how usernames and passwords are checked, but
803 there is now a framework to start from.
804
765b530f
PH
805PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
806 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
807 without this. I don't know how relevant this is to other LDAP libraries.
808
4e167a8c
PH
809PH/02 Add the verb name to the "unknown ACL verb" error.
810
4608d683
PH
811PH/03 Magnus Holmgren's patch for filter_prepend_home.
812
b8dc3e4a
PH
813PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
814
5418e93b
PH
815PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
816 directory not expanded when it should be if an expanded home directory
817 was set for the address (which is overridden by the transport).
818
b4a9bda2
PH
819PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
820 libradius.
821
45b91596
PH
822PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
823 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
824 because it is too late at that time, and has no effect.
825
5547e2c5
PH
826PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
827 security issue with \' (bugzilla #107). I could not use the
828 PQescapeStringConn() function, because it needs a PGconn value as one of
829 its arguments.
830
dbcef0ea
PH
831PH/08 When testing addresses using -bt, indicate those final addresses that
832 are duplicates that would not cause an additional delivery. At least one
833 person was confused, thinking that -bt output corresponded to deliveries.
834 (Suppressing duplicates isn't a good idea as you lose the information
835 about possibly different redirections that led to the duplicates.)
836
25257489
PH
837PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
838 systems where poll() doesn't work, in particular OS X.
839
c816d124
PH
840PH/10 Added more information to debugging output for retry time not reached.
841
a9ccd69a
PH
842PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
843 operations in malware.c.
844
75fa1910
PH
845PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
846 signatures.
847
a7d7aa58
PH
848PH/13 If write_rejectlog was set false when logging was sent to syslog with
849 syslog_duplication set false, log lines that would normally be written
850 both the the main log and to the reject log were not written to syslog at
851 all.
852
42119b09
PH
853PH/14 In the default configuration, change the use of "message" in ACL warn
854 statements to "add_header".
855
41609df5
PH
856PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
857 not followed by a command (e.g. "seen endif").
858
a5bd321b
PH
859PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
860 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
861 latter.
862
e85a7ad5 863PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
864 so that it is now:
865
e85a7ad5
PH
866 ${if or { \
867 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
868 { match{$h_precedence:}{(?i)bulk|list|junk} } \
869 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
870 }{no}{yes}}
871
e85a7ad5
PH
872 The Auto-Submitted: and various List- headers are standardised, whereas I
873 don't think Precedence: ever was.
5dff5817 874
d8fe1c03
PH
875PH/18 Refactored debugging code in route_finduser() to show more information,
876 in particular, the error code if getpwnam() issues one.
877
16282d2b
PH
878PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
879 This is apparently needed in addition to the PH/07 change above to avoid
880 any possible encoding problems.
881
35d40a98
PH
882PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
883 but not after initializing Perl.
884
034d99ab
PH
885PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
886 output them only if debugging. By default they are written stderr,
887 apparently, which is not desirable.
888
6ec97b1b
PH
889PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
890 queries.
891
e22ca4ac
JJ
892JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
893 --not options
894
895JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
896
33d73e3b
PH
897PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
898 authenticated or an ident call has been made. Suppress the default
899 values for $authenticated_id and $authenticated_sender (but permit -oMai
900 and -oMas) when testing with -bh.
901
9ecb03f3
PH
902PH/24 Re-jigged the order of the tests in the default configuration so that the
903 tests for valid domains and recipients precede the DNS black list and CSA
904 tests, on the grounds that those ones are more expensive.
905
084efe8d
PH
906PH/25 Exim was not testing for a space following SMTP commands such as EHLO
907 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
908 This bug exists in every version of Exim that I still have, right back to
909 0.12.
910
366fc9f0
PH
911PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
912 However, an attempt to turn on case-sensitivity in a regex key by
913 including (?-i) didn't work because the subject string was already
914 lowercased, and the effects were non-intuitive. It turns out that a
915 one-line patch can be used to allow (?-i) to work as expected.
916
c59f5781 917
c887c79e
TF
918Exim version 4.62
919-----------------
920
921TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
922 other effects) broke the use of negated acl sub-conditions.
923
1cce3af8
PH
924PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
925 patch).
926
afb3eaaf
PH
927PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
928 "Deny" causes Exim to reject the incoming connection with a 554 error.
929 Unfortunately, if there is a major crisis, such as a disk failure,
930 tcp-wrappers gives "deny", whereas what one would like would be some
931 kind of temporary error. A kludge has been added to help with this.
932 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
933 554 error is used if errno is still zero or contains ENOENT (which occurs
934 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
935 451 error is used.
936
e173618b
PH
937PH/03 Add -lutil to the default FreeBSD LIBS setting.
938
dd16e114
PH
939PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
940 errors. Otherwise a message that provokes a temporary error (when other
941 messages do not) can cause a whole host to time out.
942
f7fd3850
PH
943PH/05 Batch deliveries by appendfile and pipe transports did not work when the
944 addresses were routed directly to files or pipes from a redirect router.
945 File deliveries just didn't batch; pipe deliveries might have suffered
946 odd errors.
947
d87df92c
PH
948PH/06 A failure to get a lock for a hints database would erroneously always say
949 "Failed to get write lock", even when it was really a read lock.
950
7e9f683d
PH
951PH/07 The appendfile transport was creating MBX lock files with a fixed mode
952 of 0600. This has been changed to use the value of the lockfile_mode
953 option (which defaults to 0600).
954
bfad5236
PH
955PH/08 Applied small patch from the Sieve maintainer.
956
01c490df
PH
957PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
958 folder from quota calculations, a direct delivery into this folder messed
959 up the contents of the maildirsize file. This was because the regex was
960 used only to exclude .Trash (or whatever) when the size of the mailbox
961 was calculated. There was no check that a delivery was happening into an
962 excluded directory. This bug has been fixed by ignoring all quota
963 processing for deliveries into excluded directories.
964
d6629cdc
PH
965PH/10 Added the maildirfolder_create_regex option to appendfile.
966
1cce3af8 967
214e2000
PH
968Exim version 4.61
969-----------------
970
971PH/01 The code for finding all the local interface addresses on a FreeBSD
972 system running IPv6 was broken. This may well have applied to all BSD
973 systems, as well as to others that have similar system calls. The broken
974 code found IPv4 interfaces correctly, but gave incorrect values for the
975 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
976 that it would not match correctly against @[] and not recognize the IPv6
977 addresses as local.
978
f9daeae0
PH
979PH/02 The ipliteral router was not recognizing addresses of the form user@
980 [ipv6:....] because it didn't know about the "ipv6:" prefix.
981
7e66e54d
PH
982PH/03 Added disable_ipv6.
983
c8ea1597
PH
984PH/04 Changed $reply_address to use the raw form of the headers instead of the
985 decoded form, because it is most often used to construct To: headers
986 lines in autoreplies, and the decoded form may well be syntactically
987 invalid. However, $reply_address has leading white space removed, and all
988 newlines turned into spaces so that the autoreply transport does not
989 grumble.
990
911f6fde
PH
991PH/05 If group was specified without a user on a router, and no group or user
992 was specified on a transport, the group from the router was ignored.
993
47ca6d6c
PH
994PH/06 Increased the number of ACL variables to 20 of each type, and arranged
995 for visible compile-time settings that can be used to change these
996 numbers, for those that want even more. Backwards compatibility with old
997 spool files has been maintained. However, going back to a previous Exim
998 release will lost any variables that are in spool files.
999
ed0e9820
PH
1000PH/07 Two small changes when running in the test harness: increase delay when
1001 passing a TCP/IP connection to a new process, in case the original
1002 process has to generate a bounce, and remove special handling of
1003 127.0.0.2 (sic), which is no longer necessary.
1004
eff37e47
PH
1005PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1006 be the same on different OS.
1007
1921d2ea
PH
1008PH/09 Moved a debug statement in filter processing to avoid a race problem when
1009 testing.
1010
b3f69ca8
JJ
1011JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1012 whether --show-vars was specified or not
1013
1014JJ/02 exipick: Added support for new ACL variable spool format introduced
1015 in 4.61-PH/06
1016
424a1c63
PH
1017PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1018 syntactically invalid From: or Reply-to: line, and a filter used this to
1019 generate an autoreply, and therefore failed to obtain an address for the
1020 autoreply, Exim could try to deliver to a non-existent relative file
1021 name, causing unrelated and misleading errors. What now happens is that
1022 it logs this as a hard delivery error, but does not attempt to create a
1023 bounce message.
1024
7a100415
PH
1025PH/11 The exinext utility has a -C option for testing purposes, but although
1026 the given file was scanned by exinext itself; it wasn't being passed on
1027 when Exim was called.
1028
19b9dc85
PH
1029PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1030 an end-of-file indication when reading a command response.
1031
309bd837
PH
1032PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1033 compiled. In many other places in Exim, IPv6 addresses are always
1034 recognized, so I have changed this. It also means that IPv4 domain
1035 literals of the form [IPV4:n.n.n.n] are now always recognized.
1036
59e82a2a
PH
1037PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1038 used if the router is not running as root, for example, when verifying at
1039 ACL time, or when using -bh. The debugging output from this situation was
1040 non-existent - all you got was a failure to exec. I have made two
1041 changes:
1042
1043 (a) Failures to set uid/gid, the current directory, or a process leader
1044 in a subprocess such as that created by queryprogram now generate
1045 suitable debugging ouput when -d is set.
1046
1047 (b) The queryprogram router detects when it is not running as root,
1048 outputs suitable debugging information if -d is set, and then runs
1049 the subprocess without attempting to change uid/gid.
1050
9edc04ce
PH
1051PH/15 Minor change to Makefile for building test_host (undocumented testing
1052 feature).
1053
1349e1e5
PH
1054PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1055 additional section of a DNS packet that returns MX or SRV records.
1056 Instead, it always explicitly searches for A/AAAA records. This avoids
1057 major problems that occur when a DNS server includes only records of one
1058 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1059 fixed another bug: if SRV records were looked up and the corresponding
1060 address records were *not* found in the additional section, the port
1061 values from the SRV records were lost.
1062
ea49d0e1
PH
1063PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1064 using the correct key (the original address) when searching the retry
1065 rules in order to find which one to use for generating the retry hint.
1066
064a94c9
PH
1067PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1068 adding the default one. Similarly, if it contains a Reply-To: header, the
1069 errors_reply_to option, if set, is not used.
1070
727071f8
PH
1071PH/19 When calculating a retry time, Exim used to measure the "time since
1072 failure" by looking at the "first failed" field in the retry record. Now
1073 it does not use this if it is later than than the arrival time of the
1074 message. Instead it uses the arrival time. This makes for better
1075 behaviour in cases where some deliveries succeed, thus re-setting the
1076 "first failed" field. An example is a quota failure for a huge message
1077 when small messages continue to be delivered. Without this change, the
1078 "time since failure" will always be short, possible causing more frequent
1079 delivery attempts for the huge message than are intended.
dd16e114 1080 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1081
f78eb7c6
PH
1082PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1083 $1, $2, $3) because the numerical variables can be reset during some
1084 expansion items (e.g. "match"), thereby losing the authentication data.
1085
21c28500
PH
1086PH/21 Make -bV show the size of off_t variables so that the test suite can
1087 decide whether to run tests for quotas > 2G.
1088
1089PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1090 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1091 filecount value is greater than 2G or if a quota value is greater than 2G
1092 on a system where the size of off_t is not greater than 4, a panic error
1093 is given.
1094
1688f43b
PH
1095PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1096 never match. The debug and -bh output now contains an explicit error
1097 message indicating a malformed IPv4 address or mask.
1098
1099PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1100 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1101 PH/23 above applies.
1102
9675b384
PH
1103PH/25 Do not write to syslog when running in the test harness. The only
1104 occasion when this arises is a failure to open the main or panic logs
1105 (for which there is an explicit test).
1106
6a3f1455
PH
1107PH/26 Added the /no_tell option to "control=freeze".
1108
dac79d3e
PH
1109PH/27 If a host name lookup failed very early in a connection, for example, if
1110 the IP address matched host_lookup and the reverse lookup yielded a name
1111 that did not have a forward lookup, an error message of the form "no IP
1112 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1113 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1114
5977a0b3
PH
1115PH/28 An enabling patch from MH: add new function child_open_exim2() which
1116 allows the sender and the authenticated sender to be set when
1117 submitting a message from within Exim. Since child_open_exim() is
1118 documented for local_scan(), the new function should be too.
1119
c91535f3
PH
1120PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1121 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1122 results in an empty string is now treated as unset.
1123
0d46a8c8
PH
1124PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1125
278c6e6c
PH
1126PH/31 Added sender_verify_fail logging option.
1127
2cbb4081
PH
1128PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1129 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1130 tidied the source and removed it altogether.
1131
3eef829e
PH
1132PH/33 When a queue run was abandoned because the load average was too high, a
1133 log line was always written; now it is written only if the queue_run log
1134 selector is set. In addition, the log line for abandonment now contains
1135 information about the queue run such as the pid. This is always present
1136 in "start" and "stop" lines but was omitted from the "abandon" line.
1137
1ab95fa6
PH
1138PH/34 Omit spaces between a header name and the colon in the error message that
1139 is given when verify = headers_syntax fails (if there are lots of them,
1140 the message gets confusing).
1141
230205fc
PH
1142PH/35 Change the default for dns_check_names_pattern to allow slashes within
1143 names, as there are now some PTR records that contain slashes. This check
1144 is only to protect against broken name servers that fall over on strange
1145 characters, so the fact that it applies to all lookups doesn't matter.
1146
75e0e026
PH
1147PH/36 Now that the new test suite is complete, we can remove some of the
1148 special code in Exim that was needed for the old test suite. For example,
1149 sorting DNS records because real resolvers return them in an arbitrary
1150 order. The new test suite's fake resolver always returns records in the
1151 same order.
1152
1153PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1154 bounces) except when queue_only is set, to avoid logging races between
1155 the different processes.
1156
145396a6
PH
1157PH/38 Panic-die if .include specifies a non-absolute path.
1158
3cd34f13
PH
1159PH/39 A tweak to the "H" retry rule from its user.
1160
11121d3d
JJ
1161JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1162 a label. They prevented compilation on older perls.
1163
1164JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1165 a warning to be raised on newish perls.
1166
1167JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1168 on queue. Changes to match documented behaviour of showing count of
1169 messages matching specified criteria.
1170
8def5aaf
PH
1171PH/40 Changed the default ident timeout from 30s to 5s.
1172
929ba01c
PH
1173PH/41 Added support for the use of login_cap features, on those BSD systems
1174 that have them, for controlling the resources used by pipe deliveries.
1175
2632889e
PH
1176PH/42 The content-scanning code uses fopen() to create files in which to put
1177 message data. Previously it was not paying any attention to the mode of
1178 the files. Exim runs with umask(0) because the rest of the code creates
1179 files with open(), and sets the required mode explicitly. Thus, these
1180 files were ending up world-writeable. This was not a big issue, because,
1181 being within the spool directory, they were not world-accessible. I have
1182 created a function called modefopen, which takes an additional mode
1183 argument. It sets umask(777), creates the file, chmods it to the required
1184 mode, then resets the umask. All the relevant calls to fopen() in the
1185 content scanning code have been changed to use this function.
1186
944a9c55
PH
1187PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1188 to 24 hours. This avoids potential overflow problems when processing G
1189 and H retry rules. I suspect nobody ever tinkers with this value.
1190
4a23603b
PH
1191PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1192
4730f942
PH
1193PH/45 When the plaintext authenticator is running as a client, the server's
1194 challenges are checked to ensure they are valid base64 strings. By
1195 default, the authentication attempt is cancelled if an invalid string is
1196 received. Setting client_ignore_invalid_base64 true ignores these errors.
1197 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1198 they are received. Thus, the responses can be made to depend on the
1199 challenges. If an invalid string is ignored, an empty string is placed in
1200 the variable.
1201
30dba1e6
PH
1202PH/46 Messages that are created by the autoreply transport now contains a
1203 References: header, in accordance with RFCs 2822 and 3834.
1204
382afc6b
PH
1205PH/47 Added authenticated_sender_force to the smtp transport.
1206
a86229cf
PH
1207PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1208
50c99ba6
PH
1209PH/49 Installed latest patch from the Sieve maintainer.
1210
d35e429d
PH
1211PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1212 was also set, the appendfile transport was unnecessarily scanning a
1213 directory of message files (e.g. for maildir delivery) to find the count
1214 of files (along with the size), even though it did not need this
1215 information. It now does the scan only if it needs to find either the
1216 size of the count of files.
1217
f90d018c
PH
1218PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1219
75def545
PH
1220PH/52 Two bugs concerned with error handling when the smtp transport is
1221 used in LMTP mode:
1222
1223 (i) Exim was not creating retry information for temporary errors given
1224 for individual recipients after the DATA command when the smtp transport
1225 was used in LMTP mode. This meant that they could be retried too
1226 frequently, and not timed out correctly.
1227
1228 (ii) Exim was setting the flag that allows error details to be returned
1229 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1230 recipients that were returned after the DATA command.
1231
1232PH/53 This is related to PH/52, but is more general: for any failing address,
1233 when detailed error information was permitted to be returned to the
1234 sender, but the error was temporary, then after the final timeout, only
1235 "retry timeout exceeded" was returned. Now it returns the full error as
1236 well as "retry timeout exceeded".
1237
c46782ef
PH
1238PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1239 do this, and (what is worse) MTAs that accept it.
1240
71fafd95
PH
1241PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1242 will now be deprecated.
1243
2c5db4fd
PH
1244PH/56 New os.c-cygwin from the Cygwin maintainer.
1245
9cf6b11a
JJ
1246JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1247 formats (previously only available in exim formats via -bpr, -bpru,
1248 and -bpra. Now also available in native and exiqgrep formats)
1249
1250JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1251 with very large, slow to parse queues
1252
1253JJ/08 exipick: added ! as generic prefix to negate any criteria format
1254
1255JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1256
898d150f
PH
1257PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1258 responses to authentication challenges, though it was showing the
1259 challenges; (ii) I've removed the CR characters from the debug output for
1260 SMTP output lines.
1261
46218253
PH
1262PH/58 Allow for the insertion of a newline as well as a space when a string
1263 is turned into more than one encoded-word during RFC 2047 encoding. The
1264 Sieve code now uses this.
1265
e97957bc
PH
1266PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1267 data_4xx, lost_connection, tls_required.
1268
81e509d7
PH
1269PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1270 message was being sent as an SMTP response.
1271
3d240ff7
PH
1272PH/61 Add -l and -k options to exicyclog.
1273
b37c4101
PH
1274PH/62 When verifying, if an address was redirected to one new address, so that
1275 verification continued, and the new address failed or deferred after
1276 having set something in $address_data, the value of $address_data was not
1277 passed back to the ACL. This was different to the case when no
1278 redirection occurred. The value is now passed back in both cases.
1279
79378e0f
PH
1280PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1281 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1282 use login_cap.h, so on its own it isn't the distinguishing feature. The
1283 new name refers directly to the setclassresources() function.
1284
e49c7bb4
PH
1285PH/65 Added configuration files for NetBSD3.
1286
d114ec46
PH
1287PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1288
f3d7df6c
PH
1289PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1290 is preferred over IPv4.
1291
715ab376
PH
1292PH/68 The bounce_return_message and bounce_return_body options were not being
1293 honoured for bounces generated during the reception of non-SMTP messages.
1294 In particular, this applied to messages rejected by the ACL. This bug has
1295 been fixed. However, if bounce_return_message is true and bounce_return_
1296 body is false, the headers that are returned for a non-SMTP message
1297 include only those that have been read before the error was detected.
1298 (In the case of an ACL rejection, they have all been read.)
1299
6b31b150
PH
1300PH/69 The HTML version of the specification is now built in a directory called
1301 spec_html instead of spec.html, because the latter looks like a path with
1302 a MIME-type, and this confuses some software.
1303
1304PH/70 Catch two compiler warnings in sieve.c.
1305
d515a917
PH
1306PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1307 function verify_get_ident() calls ip_connect() to connect a socket, but
1308 if the "connect()" function timed out, ip_connect() used to close the
1309 socket. However, verify_get_ident() also closes the socket later, and in
1310 between Exim writes to the log, which may get opened at this point. When
1311 the socket was closed in ip_connect(), the log could get the same file
1312 descriptor number as the socket. This naturally causes chaos. The fix is
1313 not to close the socket in ip_connect(); the socket should be closed by
1314 the function that creates it. There was only one place in the code where
1315 this was missing, in the iplookup router, which I don't think anybody now
1316 uses, but I've fixed it anyway.
1317
9b8fadde
PH
1318PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1319 well as to direct DNS lookups. Otherwise the handling of names in host
1320 lists is inconsistent and therefore confusing.
1321
214e2000 1322
5de37277
PH
1323Exim version 4.60
1324-----------------
1325
cc38ddbf
PH
1326PH/01 Two changes to the default runtime configuration:
1327
1328 (1) Move the checks for relay_from_hosts and authenticated clients from
1329 after to before the (commented out) DNS black list checks.
1330
1331 (2) Add control=submission to the relay_from_hosts and authenticated
1332 clients checks, on the grounds that messages accepted by these
1333 statements are most likely to be submissions.
5de37277 1334
72fdd6ae
PH
1335PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1336
1337 (1) Generate an error if the third argument for the ${prvs expansion is
1338 not a single digit.
1339
1340 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1341 string.
1342
1343 (3) Reset the variables that are obtained from the first argument of
1344 ${prvscheck and used in the second argument before leaving the code,
1345 because their memory is reclaimed, so using them afterwards may do
1346 silly things.
1347
1348 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1349 one (it's much easier than Tom thought :-).
1350
1351 (5) Because of (4), we can now allow for the use of $prvscheck_result
1352 inside the third argument.
cb9328de 1353
cb741023
PH
1354PH/03 For some reason, the default setting of PATH when running a command from
1355 a pipe transport was just "/usr/bin". I have changed it to
1356 "/bin:/usr/bin".
1357
f174f16e
PH
1358PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1359 anything to be listed in the output from -bV.
b2f5a032 1360
c25242d7
PH
1361PH/05 When a filter generated an autoreply, the entire To: header line was
1362 quoted in the delivery log line, like this:
1363
1364 => >A.N.Other <ano@some.domain> <original@ddress> ...
1365
1366 This has been changed so that it extracts the operative address. There
1367 may be more than one such address. If so, they are comma-separated, like
1368 this:
1369
1370 => >ano@some.domain,ona@other.domain <original@ddress> ...
1371
82c19f95
PH
1372PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1373 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1374 not being looked up in the rDNS to get a host name, Exim was showing the
1375 IP address twice in Received: lines, even though the IP addresses were
1376 identical. For example:
1377
1378 Received: from [1.2.3.4] (helo=[1.2.3.4])
1379
1380 However, if the real host name was known, it was omitting the HELO data
1381 if it matched the actual IP address. This has been tidied up so that it
1382 doesn't show the same IP address twice.
1383
d7ffbc12
PH
1384PH/07 When both +timestamp and +memory debugging was on, the value given by
1385 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1386 called by the debug printing, thereby overwriting the timestamp buffer.
1387 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1388
9f526266
PH
1389PH/08 When the original message was included in an autoreply transport, it
1390 always said "this is a copy of the message, including all the headers",
1391 even if body_only or headers_only was set. It now gives an appropriate
1392 message.
1393
87fcc8b9
PH
1394PH/09 Applied a patch from the Sieve maintainer which:
1395
1396 o fixes some comments
1397 o adds the (disabled) notify extension core
1398 o adds some debug output for the result of if/elsif tests
1399 o points to the current vacation draft in the documentation
1400 and documents the missing references header update
1401
1402 and most important:
1403
1404 o fixes a bug in processing the envelope test (when testing
1405 multiple envelope elements, the last element determinted the
1406 result)
1407
456682f5
PH
1408PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1409 Electronic Mail") by including:
1410
1411 Auto-submitted: auto-generated
1412
1413 in the messages that it generates (bounce messages and others, such as
1414 warnings). In the case of bounce messages for non-SMTP mesages, there was
1415 also a typo: it was using "Auto_submitted" (underscore instead of
1416 hyphen). Since every message generated by Exim is necessarily in response
1417 to another message, thes have all been changed to:
1418
1419 Auto-Submitted: auto-replied
1420
1421 in accordance with these statements in the RFC:
1422
1423 The auto-replied keyword:
1424
1425 - SHOULD be used on messages sent in direct response to another
1426 message by an automatic process,
1427
1428 - MUST NOT be used on manually-generated messages,
1429
1430 - MAY be used on Delivery Status Notifications (DSNs) and Message
1431 Disposition Notifications (MDNs),
1432
1433 - MUST NOT be used on messages generated by automatic or periodic
1434 processes, except for messages which are automatic responses to
1435 other messages.
1436
3e46c1aa
PH
1437PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1438 to the default Received: header definition.
456682f5 1439
49826d12
PH
1440PH/12 Added log selector acl_warn_skipped (default on).
1441
eba0c039
PH
1442PH/13 After a successful wildlsearch lookup, discard the values of numeric
1443 variables because (a) they are in the wrong storage pool and (b) even if
1444 they were copied, it wouldn't work properly because of the caching.
1445
a0d6ba8a
PH
1446PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1447 checking when decoding. Apparently there are clients that generate
1448 overlong encoded strings. Why am I not surprised?
1449
f0917727
PH
1450PH/15 If the first argument of "${if match_address" was not empty, but did not
1451 contain an "@" character, Exim crashed. Now it writes a panic log message
1452 and treats the condition as false.
1453
096fee00
PH
1454PH/16 In autoreply, treat an empty string for "once" the same as unset.
1455
024bd3c2
PH
1456PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1457 extension "envelope-auth". The code is finished and in agreement with
1458 other implementations, but there is no documentation so far and in fact,
1459 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1460 not changing the active code.
1461
1462 Print executed "if" and "elsif" statements when debugging is used. This
1463 helps a great deal to understand what a filter does.
1464
1465 Document more things not specified clearly in RFC3028. I had all this
1466 sorted out, when out of a sudden new issues came to my mind. Oops."
1467
df199fec
PH
1468PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1469 (Bugzilla #53).
1470
d27f1df3
PH
1471PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1472 canonical form (as documented). However, after a host name lookup from
1473 the IP address, check_host() was doing a simple string comparison with
1474 addresses acquired from the DNS when checking that the found name did
1475 have the original IP as one of its addresses. Since any found IPv6
1476 addresses are likely to be in abbreviated form, the comparison could
1477 fail. Luckily, there already exists a function for doing the comparison
1478 by converting both addresses to binary, so now that is used instead of
1479 the text comparison.
1480
96776534
PH
1481PH/20 There was another similar case to PH/19, when a complete host name was
1482 given in a host list; looking up its IP address could give an abbreviated
1483 form, whereas the current host's name might or might not be abbreviated.
1484 The same fix has been applied.
1485
5de37277 1486
9a799bc0
PH
1487Exim version 4.54
1488-----------------
1489
1490PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1491 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1492 It now does.
1493
99a4b039
PH
1494PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1495 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1496
1497PH/03 Typo: missing ".o" in src/pcre/Makefile.
1498
4b233853
PH
1499PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1500 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1501 Also, for "Auto-Submitted", treat anything other than "no" as
1502 non-personal, in accordance with RFC 3834. (Previously it treated
1503 anything starting "auto-" as non-personal.)
1504
8857ccfd
PH
1505TF/01 The control=submission/name=... option had a problem with syntax
1506 errors if the name included a slash character. The /name= option
1507 now slurps the rest of the string, so it can include any characters
1508 but it must come last in the list of options (after /sender_retain
1509 or /domain=).
1510
433a2980
PH
1511PH/05 Some modifications to the interface to the fake nameserver for the new
1512 testing suite.
1513
3e46c1aa 1514
9a799bc0 1515
e3a311ba
TK
1516Exim version 4.53
1517-----------------
1518
1519TK/01 Added the "success_on_redirect" address verification option. See
1520 NewStuff for rationale and an example.
1521
13b685f9
PH
1522PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1523
395ff96d
PH
1524PH/02 Patch to exigrep to allow it to work on syslog lines.
1525
5b68f6e4
PH
1526PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1527 fread() to skip over the body file's header line, because in Cygwin the
1528 header line is locked and is inaccessible.
1529
1ab52c69
PH
1530PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1531 co-exist for some time) to make it clear that it is the Exim ID that is
1532 referenced, not the Message-ID: header line.
1533
b07e6aa3
PH
1534PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1535 string_format() function, because snprintf() does not exist on all
1536 operating systems.
1537
254e032f
PH
1538PH/06 The use of forbid_filter_existstest now also locks out the use of the
1539 ${stat: expansion item.
1540
3af76a81
PH
1541PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1542 protocol synchronization error", to keep the pedants happy.
1543
2548ba04
PH
1544PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1545 well as for IRIX systems, when gcc is being used. See the host.c source
1546 file for comments.
1547
b6c6011d
PH
1548PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1549
cf39cf57
PH
1550PH/10 Named domain lists were not working if used in a queue_smtp_domains
1551 setting.
1552
f1513293
PH
1553PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1554 transport and to the smtp transport in LMTP mode.
1555
727549a4
PH
1556TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1557
af46795e
PH
1558PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1559 run a filter in a subprocess. This could lead to confusion in subsequent
1560 lookups in the parent process. There should also be a search_tidyup() at
1561 the end of the subprocess.
1562
d7b47fd0
PH
1563PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1564 only if the host matched helo_try_verify_hosts, which caused the
1565 verification to occur when the EHLO/HELO command was issued. The ACL just
1566 tested the remembered result. Now, if a previous verification attempt has
1567 not happened, "verify = helo" does it there and then.
1568
ee744174
JJ
1569JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1570
b582ab87
PH
1571TK/03 Fix log output including CR from clamd.
1572
41a13e0a
PH
1573PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1574 exist provoked a memory error which could cause a segfault.
1575
f625cc5a
PH
1576PH/15 Installed PCRE 6.2
1577
1578PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1579
21f7af35
PH
1580PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1581 of the problem. Specifically, suggested +O2 rather than +O1 for the
1582 HP-UX compiler.
1583
31480e42
PH
1584PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1585
2d280592
PH
1586PH/20 If a delivery was routed to a non-standard port by means of an SRV
1587 record, the port was not correctly logged when the outgoing_port log
1588 selector was set (it logged the transort's default port).
1589
7cd1141b
PH
1590PH/21 Added support for host-specific ports to manualroute, queryprogram,
1591 fallback_hosts, and "hosts" in the smtp transport.
1592
1593PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1594 host errors such as "Connection refused".
1595
750af86e
PH
1596PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1597 authentication with radiusclient 0.4.9:
1598
1599 - Error returned from rc_read_config was caught wrongly
1600 - Username/password not passed on to radius server due to wrong length.
1601
1602 The presumption is that some radiusclient API changes for 4.51/PH/17
1603 were not taken care of correctly. The code is still untested by me (my
1604 Linux distribution still has 0.3.2 of radiusclient), but it was
1605 contributed by a Radius user.
1606
1607PH/24 When doing a callout, the value of $domain wasn't set correctly when
1608 expanding the "port" option of the smtp transport.
1609
4304270b
TK
1610TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1611 while reading a MIME header. Thanks to Tom Hughes for a patch.
1612
750af86e
PH
1613PH/24 Include config.h inside local_scan.h so that configuration settings are
1614 available.
1615
64ffc24f
PH
1616PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1617 that in an ACL for RCPT (for example), you can examine exactly what was
1618 received.
1619
5dd9625b
PH
1620PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1621 commands, but it was not correctly comparing the address with the actual
1622 client host address. Thus, it would show the EHLO address in Received:
1623 header lines when this was not necessary.
1624
5591031b
PH
1625PH/27 Added the % operator to ${eval:}.
1626
ba18e66a
PH
1627PH/28 Exim tries to create and chdir to its spool directory when it starts;
1628 it should be ignoring failures (because with -C, for example, it has lost
1629 privilege). It wasn't ignoring creation failures other than "already
1630 exists".
1631
9cec981f
PH
1632PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1633 -bV or -d is used.
1634
aa2b5c79
PH
1635PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1636 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1637 too many continuations, the temporary file was not being removed, and the
1638 return code was incorrect.
aa2b5c79 1639
48a53b7f
PH
1640PH/31 Missing "BOOL" in function definition in filtertest.c.
1641
1c59d63b
PH
1642PH/32 Applied Sieve patches from the maintainer.
1643
671012da
TK
1644TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1645
1509d3a8
PH
1646PH/33 Added "verify = not_blind".
1647
1648PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1649 Local/Makefile (with some defaults set). These are used in built scripts
1650 such as exicyclog, but they have never been used in the exim_install
1651 script (though there are many overriding facilities there). I have
1652 arranged that the exim_install script now takes note of these two
1653 settings.
1654
1655PH/35 Installed configuration files for Dragonfly.
1656
2fe1a124
PH
1657PH/36 When a locally submitted message by a trusted user did not contain a
1658 From: header, and the sender address was obtained from -f or from an SMTP
1659 MAIL command, and the trusted user did not use -F to supply a sender
1660 name, $originator_name was incorrectly used when constructing a From:
1661 header. Furthermore, $originator_name was used for submission mode
1662 messages from external hosts without From: headers in a similar way,
1663 which is clearly wrong.
1664
8800895a
PH
1665PH/37 Added control=suppress_local_fixups.
1666
ccfdb010
PH
1667PH/38 When log_selector = +received_sender was set, and the addition of the
1668 sender made the log line's construction buffer exactly full, or one byte
1669 less than full, an overflow happened when the terminating "\n" was
1670 subsequently added.
1671
1130bfb0
PH
1672PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1673 when the result of a list match is failure because a DNS lookup failed.
1674
ebcb507f
PH
1675PH/40 RM_COMMAND is now used in the building process.
1676
c35e155c
PH
1677PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1678 the "build-* directories that it finds.
1679
95d1f782
PH
1680PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1681 address in a domain literal was a prefix of an interface address.
1682
fd6de02e
PH
1683PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1684 when verifying a sender address, unless rewrite_headers is false.
1685
58de37c5
PH
1686PH/44 Wrote a long comment about why errors_to addresses are verified as
1687 recipients, not senders.
1688
261cf466
TF
1689TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1690 the ratelimit ACL was added.
1691
3ee512ff
PH
1692PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1693
e08c430f
PH
1694PH/46 Added extra information about PostgreSQL errors to the error string.
1695
bef5a11f
PH
1696PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1697 avoiding the need to install special zones in a real server. This is
1698 backwards compatible; if it can't find the fake resolver, it drops back.
1699 Thus, both old and new test suites can be run.
1700
7546de58
TF
1701TF/02 Added util/ratelimit.pl
1702
e5d5a95f
TF
1703TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1704 clock is set back in time.
1705
2e88a017
TF
1706TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1707 Candler <B.Candler@pobox.com>.
1708
a5f65aa4
TF
1709TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1710 OK for addresses that are the result of redirections.
1711
e7726cbf
PH
1712PH/48 A number of further additions for the benefit of the new test suite,
1713 including a fake gethostbyname() that interfaces to the fake DNS resolver
1714 (see PH/47 above).
1715
a7fdad5b
TF
1716TF/06 The fix for widen_domains has also been applied to qualify_single and
1717 search_parents which are the other dnslookup options that can cause
1718 header rewrites.
1719
6af56900
PH
1720PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1721 type ("H").
1722
0925ede6
PH
1723PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1724
66afa403
TF
1725TF/07 Exim produced the error message "an SRV record indicated no SMTP
1726 service" if it encountered an MX record with an empty target hostname.
1727 The message is now "an MX or SRV record indicated no SMTP service".
1728
0154e85a
TF
1729TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1730 if the DNS of the sending site is misconfigured. This is quite a
1731 common situation. This change restores the behaviour of treating a
1732 helo verification defer as a failure.
1733
16f12c76
PH
1734PH/51 If self=fail was set on a router, the bounce message did not include the
1735 actual error message.
1736
bbe902f0 1737
e5a9dba6
PH
1738Exim version 4.52
1739-----------------
1740
1741TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1742
22c3b60b
PH
1743PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1744 command itself ended in error, the underlying message about the transport
1745 filter timeout was being overwritten with the pipe command error. Now the
1746 underlying error message should be appended to the second error message.
1747
06a9b4b5
PH
1748TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1749
c1ac6996
PH
1750PH/02 Reduce the amount of output that "make" produces by default. Full output
1751 can still be requested.
1752
9c7a242c
PH
1753PH/03 The warning log line about a condition test deferring for a "warn" verb
1754 was being output only once per connection, rather than after each
1755 occurrence (because it was using the same function as for successful
1756 "warn" verbs). This seems wrong, so I have changed it.
1757
87ba3f5f
PH
1758TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1759 it should not have, which might have caused a crash in the right
1760 circumstances, but probably never did.
1761
1762PH/04 Installed a modified version of Tony Finch's patch to make submission
1763 mode fix the return path as well as the Sender: header line, and to
1764 add a /name= option so that you can make the user's friendly name appear
1765 in the header line.
1766
29aba418
TF
1767TF/03 Added the control = fakedefer ACL modifier.
1768
fe0dab11
TF
1769TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1770 Mark Lowes for thorough testing.
870f6ba8 1771
11d337a4
TK
1772TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1773
1774TK/03 Merged latest SRS patch from Miles Wilton.
1775
415c8f3b
PH
1776PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1777 with the definition in sysexits.h (which is #included earlier).
1778 Fortunately, Exim does not actually use EX_OK. The code used to try to
1779 preserve the sysexits.h value, by assumimg that macro definitions were
1780 scanned for macro replacements. I have been disabused of this notion,
1781 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1782
958541e9
PH
1783PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1784 in the smtp transport. When a block could not be written in a single
1785 write() function, the timeout was being re-applied to each part-write.
1786 This seems wrong - if the receiver was accepting one byte at a time it
1787 would take for ever. The timeout is now adjusted when this happens. It
1788 doesn't have to be particularly precise.
1789
c206415f
TK
1790TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1791 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1792
2a4be8f9
PH
1793PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1794 without a domain if the check to <postmaster@domain> fails.
1795
1cba11c5
SC
1796SC/01 Eximstats: added -xls and the ability to specify output files
1797 (patch written by Frank Heydlauf).
1798
1799SC/02 Eximstats: use FileHandles for outputing results.
1800
1801SC/03 Eximstats: allow any combination of xls, txt, and html output.
1802
1803SC/04 Eximstats: fixed display of large numbers with -nvr option
1804
1805SC/05 Eximstats: fixed merging of reports with empty tables.
1806
1807SC/06 Eximstats: added the -include_original_destination flag
1808
1809SC/07 Eximstats: removed tabs and trailing whitespace.
1810
1005d00e
TK
1811TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1812
1813TK/06 MBOX spool code: Add real "From " MBOX separator line
1814 so the .eml file is really in mbox format (even though
1815 most programs do not really care). Patch from Alex Miller.
1816
1817TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1818 The latter is generated from $received_to and is only set if the
1819 message has one envelope recipient. SA can use these headers,
1820 obviously out-of-the-box. Patch from Alex Miller.
1821
9b4768fa
PH
1822PH/08 The ${def test on a variable was returning false if the variable's
1823 value was "0", contrary to what the specification has always said!
1824 The result should be true unless the variable is empty.
1825
1826PH/09 The syntax error of a character other than { following "${if
1827 def:variable_name" (after optional whitespace) was not being diagnosed.
1828 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1829 accidental colon was present, for example, could give incorrect results.
1830
0d7eb84a
PH
1831PH/10 Tidied the code in a number of places where the st_size field of a stat()
1832 result is used (not including appendfile, where other changes are about
1833 to be made).
1834
1835PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1836 This involved changing a lot of size variables from int to off_t. It
1837 should work with maildirs and everything.
1838
40727bee
TK
1839TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1840 spamd dying while we are connected to it.
1841
554d2369
TF
1842TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1843 <jgh@wizmail.org>
1844
1f922db1
PH
1845PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1846 function for BDB 4.3.
1847
ef213c3b
PH
1848PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1849
8ac170f3
PH
1850PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1851 the sources for PCRE have been re-arranged and more files are now
1852 involved.
1853
b1c749bb
PH
1854PH/15 The code I had for printing potentially long long variables in PH/11
1855 above was not the best (it lost precision). The length of off_t variables
1856 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1857 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1858 to be "long long int" or "long int". This is needed for the internal
1859 formatting function string_vformat().
b1c749bb 1860
4aac9b49
PH
1861PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1862 the configuration file to be ":syslog", then the script "guesses" where
1863 the logs files are, rather than using the compiled in default. In our
1864 case the guess is not the same as the compiled default, so the script
1865 suddenly stopped working when I started to use syslog. The patch checks
1866 to see if log_file_path is "". If so, it attempts to read it from exim
1867 with no configuration file to get the compiled in version, before it
1868 falls back to the previous guessing code."
1869
294520c8
TK
1870TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1871 implementing BATV in an Exim configuration. See NewStuff for the gory
1872 details.
1873
5bd022fe
PH
1874PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1875 Makefile that are specific to HP-UX.
1876
90e9ce59
PH
1877PH/18 If the "use_postmaster" option was set for a recipient callout together
1878 with the "random" option, the postmaster address was used as the MAIL
1879 FROM address for the random test, but not for the subsequent recipient
1880 test. It is now used for both.
1881
5ea81592
PH
1882PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1883 patch removes a few documentation additions to RFC 3028, because the
1884 latest draft now contains them. It adds the new en;ascii-case comparator
1885 and a new error check for 8bit text in MIME parts. Comparator and
1886 require names are now matched exactly. I enabled the subaddress
1887 extension, but it is not well tested yet (read: it works for me)."
1888
c6c2dc1d
PH
1889PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1890 rework some of the code of TK/09 above to avoid the hardwired use of
1891 "%lld" and "long long". Replaced the call to snprintf() with a call to
1892 string_vformat().
1893
fffffe4c
PH
1894PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1895 records point to non-existent hosts", "retry timeout exceeded", and
1896 "retry time not reached for any host after a long failure period".
ca02eafb 1897
9a26b6b2
PH
1898PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1899 experimental DomainKeys support:
1900
1901 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1902 (2) On an error such as an illegally used "control", the wrong name for
1903 the control was given.
1904
1905 These problems did NOT occur unless DomainKeys support was compiled.
1906
4aee0225
PH
1907PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1908
32d668a5
PH
1909PH/24 Added ${if match_ip condition.
1910
8187c3f3
PH
1911PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1912 databases so that it will be absolutely obvious if a crash occurs in the
1913 DB library. This is a regular occurrence (often caused by mis-matched
1914 db.h files).
1915
ff790e47 1916PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1917 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1918 picked up on a user's system that detects such things. There doesn't seem
1919 to be a gcc warning option for this - only an attribute that has to be
1920 put on the function's prototype. It seems that in Fedora Core 4 they have
1921 set this on a number of new functions. No doubt there will be more in due
1922 course.
ff790e47 1923
5417f6d1
PH
1924PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1925 specify a transport. However, if an address that was verified by such a
1926 router was the subject of a callout, Exim crashed because it tried to
1927 read the rcpt_include_affixes from the non-existent transport. Now it
1928 just assumes that the setting of that option is false. This bug was
1929 introduced by 4.51/PH/31.
1930
59cf8544
PH
1931PH/28 Changed -d+all to exclude +memory, because that information is very
1932 rarely of interest, but it makes the output a lot bigger. People tend to
1933 do -d+all out of habit.
1934
e7ad8a65
PH
1935PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1936 code in os-type was giving problems when libc.so lives in lib64, like on
1937 x86_64 Fedora Core.
1938
ade42478
PH
1939PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1940 aren't the modern standard, and it seems that some systems' include files
1941 don't always have them. Exim was already checking for some of the newer
1942 ones like T_AAAA, and defining it itself. I've added checks for all the
1943 record types that Exim uses.
1944
182ad5cf
PH
1945PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1946 not automatically generating a new one, as it is supposed to. This
1947 prevented TLS from working. If the file did exist, but contained invalid
1948 data, a new version was generated, as expected. It was only the case of a
1949 non-existent file that was broken.
1950
b0d9fc80
TK
1951TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1952 with a change in libdomainkeys > 0.64.
1953
1954TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1955 from DNS. If the selector record carries the flag, it now has
1956 precedence over the domain-wide flag.
1957
1958TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1959
47c7a64a
PH
1960PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1961 the use of a port name that isn't defined in /etc/services) occurred, the
1962 message was deferred as in a normal delivery, and thus remained on the
1963 spool, instead of being failed because of the mua_wrapper setting. This
1964 is now fixed, and I tidied up some of the mua_wrapper messages at the
1965 same time.
1966
a388bce4
SC
1967SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1968 the messages in a hash of arrays rather than using individual hashes.
1969 This is a bit cleaner and results in dramatic memory savings, albeit
1970 at a slight CPU cost.
1971
1972SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1973 as requested by Marc Sherman.
1974
1975SC/10 Eximstats: added histograms for user specified patterns as requested
1976 by Marc Sherman.
1977
0793e4ed
SC
1978SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1979
c58b88df
PH
1980PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1981 fopen() in the content-scanning modules that did not already have it.
1982
e7ad8a65 1983
7982096b
PH
1984Exim version 4.51
1985-----------------
1986
1a46a8c5
PH
1987TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1988 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1989
2f079f46 1990TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1991
1992TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1993
1994PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1995 to test Sieve filters that use "vacation".
1996
1997PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1998 that changes the way the GnuTLS parameters are stored in the cache file.
1999 The new format can be generated externally. For backward compatibility,
2000 if the data in the cache doesn't make sense, Exim assumes it has read an
2001 old-format file, and it generates new data and writes a new file. This
2002 means that you can't go back to an older release without removing the
2003 file.
2004
2005PH/03 A redirect router that has both "unseen" and "one_time" set does not
2006 work if there are any delivery delays because "one_time" forces the
2007 parent to be marked "delivered", so its unseen clone is never tried
2008 again. For this reason, Exim now forbids the simultaneous setting of
2009 these two options.
2010
2011PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2012 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2013 entry if you want to know the details. The fix, however, neglected to
2014 consider the case when local delivery batching is involved. The test for
2015 "previously delivered" was not happening when checking to see if an
2016 address could be batched with a previous (undelivered) one; under
2017 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2018 address.
1a46a8c5
PH
2019
2020PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2021 in its include files, and this causes problems building Exim.
2022
2023PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2024 header_syntax) but Exim was just ignoring anything given after a slash.
2025 In particular, this caused confusion with an attempt to use "verify =
2026 reverse_host_lookup/defer_ok". An error is now given when options are
2027 supplied for verify items that do not have them. (Maybe reverse_host_
2028 lookup should have a defer_ok option, but that's a different point.)
2029
2030PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2031 defined by RFC 821) to 2048, because there were problems with some AUTH
2032 commands, and RFC 1869 says the size should be increased for extended
2033 SMTP commands that take arguments.
2034
2035PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2036 Finch).
2037
2038PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2039 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2040
49c2d5ea
PH
2041PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2042 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2043 whatever). Otherwise the password may appear in the log. Following change
2044 PH/42 below, there is no longer a chance of it appearing in a bounce
2045 message.
49c2d5ea 2046
bf759a8b
PH
2047PH/11 Installed exipick version 20050225.0 from John Jetmore.
2048
83364d30
PH
2049PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2050 of its addresses was ever tried. (Bugzilla bug #2.)
2051
7999bbd7
PH
2052PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2053 the result incorrectly in the debug output. (It correctly added a newline
2054 to what was transported.)
2055
7dbf77c9
PH
2056TF/01 Added $received_time.
2057
74e0617f
PH
2058PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2059 commented out examples of how to interface to a virus scanner and to
2060 SpamAssassin. Also added commented examples of av_scanner and
2061 spamd_address settings.
2062
2f079f46
PH
2063PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2064 and controls are allowed in which ACLs. There were a couple of minor
2065 errors. Some of the entries in the conditions table (which is a table of
2066 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2067 negation of where the condition IS allowed.
2068
8c841523
PH
2069PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2070
7766a4f0
PH
2071PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2072 header file does not have a version number, so I've had to invent a new
2073 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2074 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2075 radiusclient), but it was contributed by a Radius user.
2076
8b417f2c
PH
2077PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2078 files or directories, for OpenSSL.
2079
901f42cb
PH
2080PH/19 When an Exim process that is running as root has to create an Exim log
2081 file, it does so in a subprocess that runs as exim:exim so as to get the
2082 ownership right at creation (otherwise, other Exim processes might see
2083 the file with the wrong ownership). There was no test for failure of this
2084 fork() call, which would lead to the process getting stuck as it waited
2085 for a non-existent subprocess. Forks do occasionally fail when resources
2086 run out. I reviewed all the other calls to fork(); they all seem to check
2087 for failure.
2088
f9b9210e
PH
2089PH/20 When checking for unexpected SMTP input at connect time (before writing
2090 the banner), Exim was not dealing correctly with a non-positive return
2091 from the read() function. If the client had disconnected by this time,
2092 the result was a log entry for a synchronization error with an empty
2093 string after "input=" when read() returned zero. If read() returned -1
2094 (an event I could not check), uninitialized data bytes were printed.
2095 There were reports of junk text (parts of files, etc) appearing after
2096 "input=".
2097
54cdb463
PH
2098PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2099
cf00dad6
PH
2100PH/22 Added support for macro redefinition, and (re)definition in between
2101 driver and ACL definitions.
2102
acb1b346
PH
2103PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2104 forgetting to use the resulting value; it was using the unexpanded value.
2105
c5ddb310
PH
2106PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2107 hadn't been configured. The fix is from Juergen Kreileder, who
2108 understands it better than I do:
2109
2110 "Here's what I see happening with three configured cyrus_sasl
2111 authenticators configured (plain, login, cram-md5):
2112
2113 On startup auth_cyrus_sasl_init() gets called for each of these.
2114 This means three calls to sasl_listmech() without a specified mech_list.
2115 => SASL tests which mechs of all available mechs actually work
2116 => three warnings about OTP not working
2117 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2118
2119 With the patch, sasl_listmech() also gets called three times. But now
2120 SASL's mech_list option is set to the server_mech specified in the the
2121 authenticator. Or in other words, the answer from sasl_listmech()
2122 gets limited to just the mech you're testing for (which is different
2123 for each call.)
2124 => the return list contains just 'plain' or 'login', 'cram-md5' or
2125 nothing depending on the value of ob->server_mech.
2126
2127 I've just tested the patch: Authentication still works fine,
2128 unavailable mechs specified in the exim configuration are still
2129 caught, and the auth.log warnings about OTP are gone."
2130
31619da6
PH
2131PH/25 When debugging is enabled, the contents of the command line are added
2132 to the debugging output, even when log_selector=+arguments is not
2133 specified.
2134
bebaf0fc
PH
2135PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2136 answer is "GNU", and only if the return is "GNU/something" is the answer
2137 "Linux".
2138
475fe28a
PH
2139PH/27 $acl_verify_message is now set immediately after the failure of a
2140 verification in an ACL, and so is available in subsequent modifiers. In
2141 particular, the message can be preserved by coding like this:
2142
2143 warn !verify = sender
2144 set acl_m0 = $acl_verify_message
2145
2146 Previously, $acl_verify_message was set only while expanding "message"
2147 and "log_message" when a very denied access.
2148
7e8bec7a
PH
2149PH/28 Modified OS/os.c-Linux with
2150
2151 -#ifndef OS_LOAD_AVERAGE
2152 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2153
2154 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2155 nomenclature these days.)
2156
e4a89c47
PH
2157PH/29 Installed patch from the Sieve maintainer that adds the options
2158 sieve_useraddress and sieve_subaddress to the redirect router.
2159
5ca2a9a1
PH
2160PH/30 In these circumstances:
2161 . Two addresses routed to the same list of hosts;
2162 . First host does not offer TLS;
2163 . First host accepts first address;
2164 . First host gives temporary error to second address;
2165 . Second host offers TLS and a TLS session is established;
2166 . Second host accepts second address.
2167 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2168 and peerdn, if requested) that were in fact used only for the second
2169 address.
7e8bec7a 2170
c688b954
PH
2171PH/31 When doing a callout as part of verifying an address, Exim was not paying
2172 attention to any local part prefix or suffix that was matched by the
2173 router that accepted the address. It now behaves in the same way as it
2174 does for delivery: the affixes are removed from the local part unless
2175 rcpt_include_affixes is set on the transport.
2176
fed77020
PH
2177PH/32 Add the sender address, as F=<...>, to the log line when logging a
2178 timeout during the DATA phase of an incoming message.
2179
7fe1560f
PH
2180PH/33 Sieve envelope tests were broken for match types other than :is. I have
2181 applied a patch sanctioned by the Sieve maintainer.
c688b954 2182
ebb6e6d5
PH
2183PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2184 the uid or gid is negative. A case of a negative gid caused this to be
2185 noticed. The fix allows for either to be negative.
2186
9c4e8f60
PH
2187PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2188 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2189 overlooked.
2190
2191PH/36 The change PH/12 above was broken. Fixed it.
2192
d7174846
PH
2193PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2194 the grounds that routing the same address twice would always produce the
2195 same answer. This might have been true once, but it is certainly no
2196 longer true now. Routing a child address may depend on the previous
2197 routing that produced that child. Some complicated redirection strategies
2198 went wrong when messages had multiple recipients, and made Exim's
2199 behaviour dependent on the order in which the addresses were given.
2200
2201 I have moved the duplicate checking until after the routing is complete.
2202 Exim scans the addresses that are assigned to local and remote
2203 transports, and removes any duplicates. This means that more work will be
2204 done, as duplicates will always all be routed, but duplicates are
2205 presumably rare, so I don't expect this is of any significance.
2206
2207 For deliveries to pipes, files, and autoreplies, the duplicate checking
2208 still happens during the routing process, since they are not going to be
2209 routed further.
2210
cfe75fc3
PH
2211PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2212 It corrects a timeout issue with spamd. This is Ian's comment: "The
2213 background is that sometimes spamd either never reads data from a
2214 connection it has accepted, or it never writes response data. The exiscan
2215 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2216 blindly assumes that writes won't block so it may never time out."
2217
be22d70e
PH
2218PH/39 Allow G after quota size as well as K and M.
2219
0612b098
PH
2220PH/40 The value set for $authenticated_id in an authenticator may not contain
2221 binary zeroes or newlines because the value is written to log lines and
2222 to spool files. There was no check on this. Now the value is run through
2223 the string_printing() function so that such characters are converted to
2224 printable escape sequences.
2225
2e0c1448
PH
2226PH/41 $message_linecount is a new variable that contains the total number of
2227 lines in the message. Compare $body_linecount, which is the count for the
2228 body only.
2229
447d236c
PH
2230PH/42 Exim no longer gives details of delivery errors for specific addresses in
2231 bounce and delay warning messages, except in certain special cases, which
2232 are as follows:
2233
2234 (a) An SMTP error message from a remote host;
2235 (b) A message specified in a :fail: redirection;
2236 (c) A message specified in a "fail" command in a system filter;
2237 (d) A message specified in a FAIL return from the queryprogram router;
2238 (e) A message specified by the cannot_route_message router option.
2239
2240 In these cases only, Exim does include the error details in bounce and
2241 warning messages. There are also a few cases where bland messages such
2242 as "unrouteable address" or "local delivery error" are given.
2243
d20976dc
PH
2244PH/43 $value is now also set for the "else" part of a ${run expansion.
2245
f656d135
PH
2246PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2247 being worked on, but at least Exim now implements the latest version to
2248 play with."
2249
2e2a30b4
PH
2250PH/45 In a pipe transport, although a timeout while waiting for the pipe
2251 process to complete was treated as a delivery failure, a timeout while
2252 writing the message to the pipe was logged, but erroneously treated as a
2253 successful delivery. Such timeouts include transport filter timeouts. For
2254 consistency with the overall process timeout, these timeouts are now
2255 treated as errors, giving rise to delivery failures by default. However,
2256 there is now a new Boolean option for the pipe transport called
2257 timeout_defer, which, if set TRUE, converts the failures into defers for
2258 both kinds of timeout. A transport filter timeout is now identified in
2259 the log output.
2260
9176e9f0
PH
2261PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2262 systems where "make" and "gmake" are different, calling "gmake" at top
2263 level broke things. I've arranged for the value of $(MAKE) to be passed
2264 from the Makefile to this script so that it can call the same version of
2265 "make".
2266
7982096b 2267
bbe902f0
PH
2268A note about Exim versions 4.44 and 4.50
2269----------------------------------------
2270
2271Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2272changes of various kinds. As a consequence, a big documentation update was
2273needed. This delayed the release for rather longer than seemed good, especially
2274in the light of a couple of (minor) security issues. Therefore, the changes
2275that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2276release. So 4.44 and 4.50 are in effect two different branches that both start
2277from 4.43.
2278
2279I have left the 4.50 change log unchanged; it contains all the changes since
22804.43. The change log for 4.44 is below; many of its items are identical to
2281those for 4.50. This seems to be the most sensible way to preserve the
2282historical information.
2283
2284
f7b63901 2285Exim version 4.50
495ae4b0
PH
2286-----------------
2287
5fe762f6
PH
2288 1. Minor wording change to the doc/README.SIEVE file.
2289
139059f6 2290 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2291 computation of the current number of files was incorrect.
495ae4b0 2292
7086e875
PH
2293 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2294 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2295 place.
2296
35af9f61
PH
2297 4. Give more explanation in the error message when the command for a transport
2298 filter fails to execute.
2299
b668c215
PH
2300 5. There are several places where Exim runs a non-Exim command in a
2301 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2302 was being done only for the command run by the queryprogram router. It is
2303 now done for all such subprocesses. The other cases are: ${run, transport
2304 filters, and the commands run by the lmtp and pipe transports.
2305
a494b1e1
PH
2306 6. Added CONFIGURE_GROUP build-time option.
2307
2308 7. Some older OS have a limit of 256 on the maximum number of file
2309 descriptors. Exim was using setrlimit() to set 1000 as a large value
2310 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2311 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2312
c5fcb476
PH
2313 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2314 was an oversight, and furthermore, ever since the addition of extra
2315 controls (e.g. 4.43/32), the checks on when to allow different forms of
2316 "control" were broken. There should now be diagnostics for all cases when a
2317 control that does not make sense is encountered.
2318
69358f02
PH
2319 9. Added the /retain_sender option to "control=submission".
2320
5be20824
PH
232110. $recipients is now available in the predata ACL (oversight).
2322
eb2c0248
PH
232311. Tidy the search cache before the fork to do a delivery from a message
2324 received from the command line. Otherwise the child will trigger a lookup
2325 failure and thereby defer the delivery if it tries to use (for example) a
2326 cached ldap connection that the parent has called unbind on.
2327
2a3eea10
PH
232812. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2329 of $address_data from the recipient verification was clobbered by the
2330 sender verification.
2331
233213. The value of address_data from a sender verification is now available in
2333 $sender_address_data in subsequent conditions in the ACL statement.
2334
23c7ff99
PH
233514. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2336
4deaf07d
PH
233715. Added a new option "connect=<time>" to callout options, to set a different
2338 connection timeout.
2339
926e1192
PH
234016. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2341 was its contents. (It was OK if the option was not defined at all.)
2342
650edc6f
PH
234317. A "Completed" log line is now written for messages that are removed from
2344 the spool by the -Mrm option.
2345
2c7db3f5
PH
234618. New variables $sender_verify_failure and $recipient_verify_failure contain
2347 information about exactly what failed.
2348
3d235903
PH
234919. Added -dd to debug only the daemon process.
2350
7c7ad977
PH
235120. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2352 handles timeouts, both on the server side and network timeouts. Renamed the
2353 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2354
981756db
PH
235521. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2356 It is now set to "smtps".
2357
d4eb88df
PH
235822. $host_address is now set to the target address during the checking of
2359 ignore_target_hosts.
2360
236123. When checking ignore_target_hosts for an ipliteral router, no host name was
2362 being passed; this would have caused $sender_host_name to have been used if
2363 matching the list had actually called for a host name (not very likely,
2364 since this list is usually IP addresses). A host name is now passed as
2365 "[x.x.x.x]".
2366
7d468ab8
PH
236724. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2368 code that specifies a non-restarting handler (typically sigaction() in
2369 modern systems) in an attempt to fix a rare and obscure crash bug.
2370
237125. Narrowed the window for a race in the daemon that could cause it to ignore
2372 SIGCHLD signals. This is not a major problem, because they are used only to
2373 wake it up if nothing else does.
2374
62c0818f
PH
237526. A malformed maildirsize file could cause Exim to calculate negative values
2376 for the mailbox size or file count. Odd effects could occur as a result.
2377 The maildirsize information is now recalculated if the size or filecount
2378 end up negative.
2379
26034054
PH
238027. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2381 support for a long time. Removed HAVE_SYS_VFS_H.
2382
af66f652
PH
238328. Installed the latest version of exipick from John Jetmore.
2384
90af77f4
PH
238529. In an address list, if the pattern was not a regular expression, an empty
2386 subject address (from a bounce message) matched only if the pattern was an
2387 empty string. Non-empty patterns were not even tested. This was the wrong
2388 because it is perfectly reasonable to use an empty address as part of a
2389 database query. An empty address is now tested by patterns that are
2390 lookups. However, all the other forms of pattern expect the subject to
2391 contain a local part and a domain, and therefore, for them, an empty
2392 address still always fails if the pattern is not itself empty.
2393
d8ef3577
PH
239430. Exim went into a mad DNS loop when attempting to do a callout where the
2395 host was specified on an smtp transport, and looking it up yielded more
2396 than one IP address.
2397
5cb8cbc6
PH
239831. Re-factored the code for checking spool and log partition space into a
2399 function that finds that data and another that does the check. The former
2400 is then used to implement four new variables: $spool_space, $log_space,
2401 $spool_inodes, and $log_inodes.
2402
14702f5b
PH
240332. The RFC2047 encoding function was originally intended for short strings
2404 such as real names; it was not keeping to the 75-character limit for
2405 encoded words that the RFC imposes. It now respects the limit, and
2406 generates multiple encoded words if necessary. To be on the safe side, I
2407 have increased the buffer size for the ${rfc2047: expansion operator from
2408 1024 to 2048 bytes.
2409
063b1e99
PH
241033. It is now permitted to omit both strings after an "if" condition; if the
2411 condition is true, the result is "true". As before, when the second string
2412 is omitted, a false condition yields an empty string. This makes it less
2413 cumbersome to write custom ACL and router conditions.
2414
652e1b65
PH
241534. Failure to deliver a bounce message always caused it to be frozen, even if
2416 there was an errors_to setting on the router. The errors_to setting is now
2417 respected.
2418
6f0c9a4f
PH
241935. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2420 canonical form (fully expanded) before being placed in
2421 $sender_host_address.
2422
33397d19
PH
242336. The table in the code that translates DNS record types into text (T_A to
2424 "A" for instance) was missing entries for NS and CNAME. It is just possible
2425 that this could have caused confusion if both these types were looked up
2426 for the same domain, because the text type is used as part of Exim's
2427 per-process caching. But the chance of anyone hitting this buglet seems
2428 very small.
2429
7bb56e1f
PH
243037. The dnsdb lookup has been extended in a number of ways.
2431
2432 (1) There is a new type, "zns", which walks up the domain tree until it
2433 finds some nameserver records. It should be used with care.
2434
ea3bc19b
PH
2435 (2) There is a new type, "mxh", which is like "mx" except that it returns
2436 just the host names, not the priorities.
2437
2438 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2439 looked up. The behaviour when one of the lookups defers can be
2440 controlled by a keyword.
7bb56e1f 2441
ea3bc19b 2442 (4) It is now possible to specify the separator character for use when
7bb56e1f 2443 multiple records are returned.
33397d19 2444
0bcb2a0e
PH
244538. The dnslists ACL condition has been extended: it is now possible to supply
2446 a list of IP addresses and/or domains to be looked up in a particular DNS
2447 domain.
2448
2ac0e484
PH
244939. Added log_selector=+queue_time_overall.
2450
4e1fde53
PH
245140. When running the queue in the test harness, wait just a tad after forking a
2452 delivery process, to get repeatability of debugging output.
2453
de365ded
PH
245441. Include certificate and key file names in error message when GnuTLS fails
2455 to set them up, because the GnuTLS error message doesn't include the name
2456 of the failing file when there is a problem reading it.
2457
f05da2e8
PH
245842. Allow both -bf and -bF in the same test run.
2459
d6453af2
PH
246043. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2461
f7b63901
PH
246244. The "Exiscan patch" is now merged into the mainline Exim source.
2463
246445. Sometimes the final signoff response after QUIT could fail to get
2465 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2466 < 0 before doing a fflush(). This bug looks as though it goes back to the
2467 introduction of TLS in release 3.20, but "sometimes" must have been rare
2468 because the tests only now provoked it.
2469
a444213a
PH
247046. Reset the locale to "C" after calling embedded Perl, in case it was changed
2471 (this can affect the format of dates).
2472
0ec020ea
PH
247347. exim_tidydb, when checking for the continued existence of a message for
2474 which it has found a message-specific retry record, was not finding
2475 messages that were in split spool directories. Consequently, it was
2476 deleting retry records that should have stayed in existence.
2477
b1206957
PH
247848. Steve fixed some bugs in eximstats.
2479
248049. The SPA authentication driver was not abandoning authentication and moving
2481 on to the next authenticator when an expansion was forced to fail,
2482 contradicting the general specification for all authenticators. Instead it
2483 was generating a temporary error. It now behaves as specified.
2484
26dd5a95
PH
248550. The default ordering of permitted cipher suites for GnuTLS was pessimal
2486 (the order specifies the preference for clients). The order is now AES256,
2487 AES128, 3DES, ARCFOUR128.
2488
343b2385
PH
248951. Small patch to Sieve code - explicitly set From: when generating an
2490 autoreply.
2491
1c5466b9
PH
249252. Exim crashed if a remote delivery caused a very long error message to be
2493 recorded - for instance if somebody sent an entire SpamAssassin report back
2494 as a large number of 550 error lines. This bug was coincidentally fixed by
2495 increasing the size of one of Exim's internal buffers (big_buffer) that
2496 happened as part of the Exiscan merge. However, to be on the safe side, I
2497 have made the code more robust (and fixed the comments that describe what
2498 is going on).
2499
55ee9ee3
PH
250053. Now that there can be additional text after "Completed" in log lines (if
2501 the queue_time_overall log selector is set), a one-byte patch to exigrep
2502 was needed to allow it to recognize "Completed" as not the last thing in
2503 the line.
2504
d38f8232
PH
250554. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2506 patch that reportedly fixes this has been added. I am not expert enough to
2507 create a test for it. This is what the patch creator wrote:
2508
2509 "I found a little strange behaviour of ldap code when working with
2510 Windows 2003 AD Domain, where users was placed in more than one
2511 Organization Units. When I tried to give exim partial DN, the exit code
2512 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2513 But simultaneously result of request was absolutely normal ldap result,
2514 so I produce this patch..."
2515
3295e65b
PH
2516 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2517 REFERENCE, so I have modified the code to exclude the patch when that macro
2518 is not defined.
2519
7102e136
PH
252055. Some experimental protocols are using DNS PTR records for new purposes. The
2521 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2522 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2523 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2524 CAN-2005-0021
7102e136 2525
3ca0ba97
PH
252656. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2527
c2bcbe20
PH
252857. Double the size of the debug message buffer (to 2048) so that more of very
2529 long debug lines gets shown.
2530
18ce445d
PH
253158. The exicyclog utility now does better if the number of log files to keep
2532 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2533
1f5b4c3d
PH
253459. Two changes related to the smtp_active_hostname option:
2535
2536 (1) $smtp_active_hostname is now available as a variable.
2537 (2) The default for smtp_banner uses $smtp_active_hostname instead
2538 of $primary_hostname.
2539
b975ba52
PH
254060. The host_aton() function is supposed to be passed a string that is known
2541 to be a valid IP address. However, in the case of IPv6 addresses, it was
2542 not checking this. This is a hostage to fortune. Exim now panics and dies
2543 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2544 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2545 components; fortuitously, this particular loophole had already been fixed
2546 by change 4.50/55 above.
2547
2548 If there are any other similar loopholes, the new check in host_aton()
2549 itself should stop them being exploited. The report I received stated that
2550 data on the command line could provoke the exploit when Exim was running as
2551 exim, but did not say which command line option was involved. All I could
2552 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2553 running as the user.
ea3a6f44 2554 CAN-2005-0021
85b87bc2
PH
2555
255661. There was a buffer overflow vulnerability in the SPA authentication code
2557 (which came originally from the Samba project). I have added a test to the
2558 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2559 CAN-2005-0022
b975ba52 2560
17ffcae7
PH
256162. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2562 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2563
d95f9fdb
PH
256463. The daemon start-up calls getloadavg() while still root for those OS that
2565 need the first call to be done as root, but it missed one case: when
2566 deliver_queue_load_max is set with deliver_drop_privilege. This is
2567 necessary for the benefit of the queue runner, because there is no re-exec
2568 when deliver_drop_privilege is set.
2569
86b8287f
PH
257064. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2571 This has been fixed.
2572
60dc5e56
PH
257365. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2574 was in use, was not putting the data itself into the right store pool;
2575 consequently, it could be overwritten for a subsequent message in the same
2576 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2577 the caching.)
2578
533244af
PH
257966. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2580
a5a28604
PH
258167. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2582 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2583 the function were treating the return as a boolean value, which happened to
2584 work because 0=false and not-0=true, but is not correct code.
2585
7e634d24
PH
258668. The host_aton() function was not handling scoped IPv6 addresses (those
2587 with, for example, "%eth0" on the end) correctly.
2588
3e11c26b
PH
258969. Fixed some compiler warnings in acl.c for the bitmaps specified with
2590 negated items (that is, ~something) in unsigned ints. Some compilers
2591 apparently mutter when there is no cast.
2592
6729cf78
PH
259370. If an address verification called from an ACL failed, and did not produce a
2594 user-specific message (i.e. there was only a "system" message), nothing was
2595 put in $acl_verify_message. In this situation, it now puts the system
2596 message there.
2597
00f00ca5
PH
259871. Change 4.23/11 added synchronization checking at the start of an SMTP
2599 session; change 4.31/43 added the unwanted input to the log line - except
2600 that it did not do this in the start of session case. It now does.
2601
c9bdd01c
PH
260272. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2603 This is wrong and can cause the other end to generate a synchronization
2604 error if it is another Exim or anything else that does the synchronization
2605 check. A QUIT command is no longer sent after a timeout.
2606
d43194df
PH
260773. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2608 during host lookups.
2609
fe5b5d0b
PH
261074. The defer_ok option of callout verification was not working if it was used
2611 when verifying addresses in header lines, that is, for this case:
2612
2613 verify = header_sender/callout=defer_ok
2614
76a2d7ba
PH
261575. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2616 those file descriptors could be used for SMTP connections. If anything
2617 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2618 could be sent to the SMTP client, causing chaos. The daemon now opens
2619 stdin, stdout, and stderr to /dev/null when it puts itself into the
2620 background.
2621
262276. Arrange for output from Perl's "warn" command to be written to Exim's main
2623 log by default. The user can override this with suitable Perl magic.
2624
04f7d5b9
PH
262577. The use of log_message on a "discard" ACL verb, which is supposed to add to
2626 the log message when discard triggers, was not working for the DATA ACL or
2627 for the non-SMTP ACL.
2628
bc60667e
PH
262978. Error message wording change in sieve.c.
2630
bb6e88ff
PH
263179. If smtp_accept_max_per_host was set, the number of connections could be
2632 restricted to fewer than expected, because the daemon was trying to set up
2633 a new connection before checking whether the processes handling previous
2634 connections had finished. The check for completed processes is now done
2635 earlier. On busy systems, this bug wouldn't be noticed because something
2636 else would have woken the daemon, and it would have reaped the completed
2637 process earlier.
2638
1e70f85b
PH
263980. If a message was submitted locally by a user whose login name contained one
2640 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2641 It caused a spool format error. I have fixed the spool reading code. A
2642 related problem was that the "from" clause in the Received: line became
2643 illegal because of the space(s). It is now covered by ${quote_local_part.
2644
264581. Included the latest eximstats from Steve (adds average sizes to HTML Top
2646 tables).
2647
4e01f9d6
PH
264882. Updated OS/Makefile-AIX as per message from Mike Meredith.
2649
1ee1cef2
PH
265083. Patch from Sieve maintainer to fix unterminated string problem in
2651 "vacation" handling.
2652
6e2b4ccc
PH
265384. Some minor changes to the Linux configuration files to help with other
2654 OS variants using glibc.
2655
8e669ac1
PH
265685. One more patch for Sieve to update vacation handling to latest spec.
2657
495ae4b0 2658
bbe902f0
PH
2659----------------------------------------------------
2660See the note above about the 4.44 and 4.50 releases.
2661----------------------------------------------------
2662
2663
2664Exim version 4.44
2665-----------------
2666
2667 1. Change 4.43/35 introduced a bug that caused file counts to be
2668 incorrectly computed when quota_filecount was set in an appendfile
2669 transport
2670
2671 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2672 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2673 place.
2674
2675 3. Give more explanation in the error message when the command for a transport
2676 filter fails to execute.
2677
2678 4. There are several places where Exim runs a non-Exim command in a
2679 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2680 was being done only for the command run by the queryprogram router. It is
2681 now done for all such subprocesses. The other cases are: ${run, transport
2682 filters, and the commands run by the lmtp and pipe transports.
2683
2684 5. Some older OS have a limit of 256 on the maximum number of file
2685 descriptors. Exim was using setrlimit() to set 1000 as a large value
2686 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2687 systems. I've change it so that if it can't get 1000, it tries for 256.
2688
2689 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2690 was an oversight, and furthermore, ever since the addition of extra
2691 controls (e.g. 4.43/32), the checks on when to allow different forms of
2692 "control" were broken. There should now be diagnostics for all cases when a
2693 control that does not make sense is encountered.
2694
2695 7. $recipients is now available in the predata ACL (oversight).
2696
2697 8. Tidy the search cache before the fork to do a delivery from a message
2698 received from the command line. Otherwise the child will trigger a lookup
2699 failure and thereby defer the delivery if it tries to use (for example) a
2700 cached ldap connection that the parent has called unbind on.
2701
2702 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2703 of $address_data from the recipient verification was clobbered by the
2704 sender verification.
2705
270610. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2707 was its contents. (It was OK if the option was not defined at all.)
2708
270911. A "Completed" log line is now written for messages that are removed from
2710 the spool by the -Mrm option.
2711
271212. $host_address is now set to the target address during the checking of
2713 ignore_target_hosts.
2714
271513. When checking ignore_target_hosts for an ipliteral router, no host name was
2716 being passed; this would have caused $sender_host_name to have been used if
2717 matching the list had actually called for a host name (not very likely,
2718 since this list is usually IP addresses). A host name is now passed as
2719 "[x.x.x.x]".
2720
272114. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2722 code that specifies a non-restarting handler (typically sigaction() in
2723 modern systems) in an attempt to fix a rare and obscure crash bug.
2724
272515. Narrowed the window for a race in the daemon that could cause it to ignore
2726 SIGCHLD signals. This is not a major problem, because they are used only to
2727 wake it up if nothing else does.
2728
272916. A malformed maildirsize file could cause Exim to calculate negative values
2730 for the mailbox size or file count. Odd effects could occur as a result.
2731 The maildirsize information is now recalculated if the size or filecount
2732 end up negative.
2733
273417. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2735 support for a long time. Removed HAVE_SYS_VFS_H.
2736
ea3a6f44 273718. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2738
273919. Allow an empty sender to be matched against a lookup in an address list.
2740 Previously the only cases considered were a regular expression, or an
2741 empty pattern.
2742
274320. Exim went into a mad DNS lookup loop when doing a callout where the
2744 host was specified on the transport, if the DNS lookup yielded more than
2745 one IP address.
2746
ea3a6f44
NM
274721. The RFC2047 encoding function was originally intended for short strings
2748 such as real names; it was not keeping to the 75-character limit for
2749 encoded words that the RFC imposes. It now respects the limit, and
2750 generates multiple encoded words if necessary. To be on the safe side, I
2751 have increased the buffer size for the ${rfc2047: expansion operator from
2752 1024 to 2048 bytes.
bbe902f0 2753
ea3a6f44
NM
275422. Failure to deliver a bounce message always caused it to be frozen, even if
2755 there was an errors_to setting on the router. The errors_to setting is now
2756 respected.
bbe902f0
PH
2757
275823. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2759 canonical form (fully expanded) before being placed in
2760 $sender_host_address.
2761
276224. Updated eximstats to version 1.33
2763
ea3a6f44
NM
276425. Include certificate and key file names in error message when GnuTLS fails
2765 to set them up, because the GnuTLS error message doesn't include the name
2766 of the failing file when there is a problem reading it.
bbe902f0
PH
2767
276826. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2769 As per change 25.
bbe902f0 2770
ea3a6f44
NM
277127. Reset the locale to "C" after calling embedded Perl, in case it was changed
2772 (this can affect the format of dates).
bbe902f0 2773
ea3a6f44
NM
277428. exim_tidydb, when checking for the continued existence of a message for
2775 which it has found a message-specific retry record, was not finding
2776 messages that were in split spool directories. Consequently, it was
2777 deleting retry records that should have stayed in existence.
bbe902f0
PH
2778
277929. eximstats updated to version 1.35
2780 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2781 1.35 - bugfix such that pie charts by volume are generated correctly
2782
ea3a6f44
NM
278330. The SPA authentication driver was not abandoning authentication and moving
2784 on to the next authenticator when an expansion was forced to fail,
2785 contradicting the general specification for all authenticators. Instead it
2786 was generating a temporary error. It now behaves as specified.
bbe902f0 2787
ea3a6f44
NM
278831. The default ordering of permitted cipher suites for GnuTLS was pessimal
2789 (the order specifies the preference for clients). The order is now AES256,
2790 AES128, 3DES, ARCFOUR128.
bbe902f0 2791
ea3a6f44
NM
279231. Small patch to Sieve code - explicitly set From: when generating an
2793 autoreply.
bbe902f0 2794
ea3a6f44
NM
279532. Exim crashed if a remote delivery caused a very long error message to be
2796 recorded - for instance if somebody sent an entire SpamAssassin report back
2797 as a large number of 550 error lines. This bug was coincidentally fixed by
2798 increasing the size of one of Exim's internal buffers (big_buffer) that
2799 happened as part of the Exiscan merge. However, to be on the safe side, I
2800 have made the code more robust (and fixed the comments that describe what
2801 is going on).
bbe902f0 2802
ea3a6f44
NM
280333. Some experimental protocols are using DNS PTR records for new purposes. The
2804 keys for these records are domain names, not reversed IP addresses. The
2805 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2806 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2807 CAN-2005-0021
2808
ea3a6f44
NM
280934. The host_aton() function is supposed to be passed a string that is known
2810 to be a valid IP address. However, in the case of IPv6 addresses, it was
2811 not checking this. This is a hostage to fortune. Exim now panics and dies
2812 if the condition is not met. A case was found where this could be provoked
2813 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2814 components; fortuitously, this particular loophole had already been fixed
2815 by change 4.50/55 or 4.44/33 above.
2816
2817 If there are any other similar loopholes, the new check in host_aton()
2818 itself should stop them being exploited. The report I received stated that
2819 data on the command line could provoke the exploit when Exim was running as
2820 exim, but did not say which command line option was involved. All I could
2821 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2822 running as the user.
bbe902f0
PH
2823 CAN-2005-0021
2824
ea3a6f44
NM
282535. There was a buffer overflow vulnerability in the SPA authentication code
2826 (which came originally from the Samba project). I have added a test to the
2827 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2828 CAN-2005-0022
2829
ea3a6f44
NM
283036. The daemon start-up calls getloadavg() while still root for those OS that
2831 need the first call to be done as root, but it missed one case: when
2832 deliver_queue_load_max is set with deliver_drop_privilege. This is
2833 necessary for the benefit of the queue runner, because there is no re-exec
2834 when deliver_drop_privilege is set.
bbe902f0 2835
ea3a6f44
NM
283637. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2837 was in use, was not putting the data itself into the right store pool;
2838 consequently, it could be overwritten for a subsequent message in the same
2839 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2840 the caching.)
bbe902f0 2841
ea3a6f44
NM
284238. Sometimes the final signoff response after QUIT could fail to get
2843 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2844 < 0 before doing a fflush(). This bug looks as though it goes back to the
2845 introduction of TLS in release 3.20, but "sometimes" must have been rare
2846 because the tests only now provoked it.
bbe902f0
PH
2847
2848
495ae4b0
PH
2849Exim version 4.43
2850-----------------
2851
2852 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2853 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2854 Now it returns an integer. A number of calls were still expecting a T/F
2855 return. Fortuitously, in all cases, the tests worked in OK situations,
2856 which is the norm. However, things would have gone wrong on any write
2857 failures on the smtp file descriptor. This function is used when sending
2858 messages over SMTP and also when doing verify callouts.
2859
2860 2. When Exim is called to do synchronous delivery of a locally submitted
2861 message (the -odf or -odi options), it no longer closes stderr before doing
2862 the delivery.
2863
2864 3. Implemented the mua_wrapper option.
2865
2866 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2867
2868 5. Implemented the functions header_remove(), header_testname(),
2869 header_add_at_position(), and receive_remove_recipient(), and exported them
2870 to local_scan().
2871
2872 6. If an ACL "warn" statement specified the addition of headers, Exim already
2873 inserted X-ACL-Warn: at the start if there was no header name. However, it
2874 was not making this test for the second and subsequent header lines if
2875 there were newlines in the string. This meant that an invalid header could
2876 be inserted if Exim was badly configured.
2877
2878 7. Allow an ACL "warn" statement to add header lines at the start or after all
2879 the Received: headers, as well as at the end.
2880
2881 8. Added the rcpt_4xx retry error code.
2882
2883 9. Added postmaster_mailfrom=xxx to callout verification option.
2884
288510. Added mailfrom=xxxx to the callout verification option, for verify=
2886 header_sender only.
2887
288811. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2889 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2890
289112. Inserted some casts to stop certain compilers warning when using pointer
2892 differences as field lengths or precisions in printf-type calls (mostly
2893 affecting debugging statements).
2894
289513. Added optional readline() support for -be (dynamically loaded).
2896
289714. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2898 same clock tick as a message's arrival, so that its received time was the
2899 same as the "first fail" time on the retry record, and that message
2900 remained on the queue past the ultimate address timeout, every queue runner
2901 would try a delivery (because it was past the ultimate address timeout) but
2902 after another failure, the ultimate address timeout, which should have then
2903 bounced the address, did not kick in. This was a "< instead of <=" error;
2904 in most cases the first failure would have been in the next clock tick
2905 after the received time, and all would be well.
2906
290715. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2908 being recognized when the domain list was tested by the match_domain
2909 condition in an expansion string.
2910
291116. Added the ${str2b64: operator.
2912
291317. Exim was always calling setrlimit() to set a large limit for the number of
2914 processes, without checking whether the existing limit was already
2915 adequate. (It did check for the limit on file descriptors.) Furthermore,
2916 errors from getrlimit() and setrlimit() were being ignored. Now they are
2917 logged to the main and panic logs, but Exim does carry on, to try to do its
2918 job under whatever limits there are.
2919
292018. Imported PCRE 5.0.
2921
292219. Trivial typo in log message " temporarily refused connection" (the leading
2923 space).
2924
292520. If the log selector return_path_on_delivery was set and an address was
2926 redirected to /dev/null, the delivery process crashed because it assumed
2927 that a return path would always be set for a "successful" delivery. In this
2928 case, the whole delivery is bypassed as an optimization, and therefore no
2929 return path is set.
2930
293121. Internal re-arrangement: the function for sending a challenge and reading
2932 a response while authentication was assuming a zero-terminated challenge
2933 string. It's now changed to take a pointer and a length, to allow for
2934 binary data in such strings.
2935
293622. Added the cyrus_sasl authenticator (code supplied by MBM).
2937
293823. Exim was not respecting finduser_retries when seeking the login of the
2939 uid under which it was called; it was always trying 10 times. (The default
2940 setting of finduser_retries is zero.) Also, it was sleeping after the final
2941 failure, which is pointless.
2942
294324. Implemented tls_on_connect_ports.
2944
294525. Implemented acl_smtp_predata.
2946
294726. If the domain in control=submission is set empty, Exim assumes that the
2948 authenticated id is a complete email address when it generates From: or
2949 Sender: header lines.
2950
295127. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2952 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2953 chown and chgrp in /bin and hostname in /usr/bin.
2954
295528. Exim was keeping the "process log" file open after each use, just as it
2956 does for the main log. This opens the possibility of it remaining open for
2957 long periods when the USR1 signal hits a daemon. Occasional processlog
2958 errors were reported, that could have been caused by this. Anyway, it seems
2959 much more sensible not to leave this file open at all, so that is what now
2960 happens.
2961
296229. The long-running daemon process does not normally write to the log once it
2963 has entered its main loop, and it closes the log before doing so. This is
2964 so that log files can straightforwardly be renamed and moved. However,
2965 there are a couple of unusual error situations where the daemon does write
2966 log entries, and I had neglected to close the log afterwards.
2967
296830. The text of an SMTP error response that was received during a remote
2969 delivery was being truncated at 512 bytes. This is too short for some of
2970 the long messages that one sometimes sees. I've increased the limit to
2971 1024.
2972
297331. It is now possible to make retry rules that apply only when a message has a
2974 specific sender, in particular, an empty sender.
2975
297632. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2977 it possible to be selective about when SMTP synchronization is enforced.
2978
297933. Added "control = caseful_local_part" and "control = "caselower_local_part".
2980
298132. Implemented hosts_connection_nolog.
2982
298333. Added an ACL for QUIT.
2984
298534. Setting "delay_warning=" to disable warnings was not working; it gave a
2986 syntax error.
2987
298835. Added mailbox_size and mailbox_filecount to appendfile.
2989
299036. Added control = no_multiline_responses to ACLs.
2991
299237. There was a bug in the logic of the code that waits for the clock to tick
2993 in the case where the clock went backwards by a substantial amount such
2994 that the microsecond fraction of "now" was more than the microsecond
2995 fraction of "then" (but the whole seconds number was less).
2996
299738. Added support for the libradius Radius client library this is found on
2998 FreeBSD (previously only the radiusclient library was supported).
2999
3000
3001Exim version 4.42
3002-----------------
3003
3004 1. When certain lookups returned multiple values in the form name=value, the
3005 quoting of the values was not always being done properly. Specifically:
3006 (a) If the value started with a double quote, but contained no whitespace,
3007 it was not quoted.
3008 (b) If the value contained whitespace other than a space character (i.e.
3009 tabs or newlines or carriage returns) it was not quoted.
3010 This fix has been applied to the mysql and pgsql lookups by writing a
3011 separate quoting function and calling it from the lookup code. The fix
3012 should probably also be applied to nisplus, ibase and oracle lookups, but
3013 since I cannot test any of those, I have not disturbed their existing code.
3014
3015 2. A hit in the callout cache for a specific address caused a log line with no
3016 reason for rejecting RCPT. Now it says "Previous (cached) callout
3017 verification failure".
3018
3019 3. There was an off-by-one bug in the queryprogram router. An over-long
3020 return line was truncated at 256 instead of 255 characters, thereby
3021 overflowing its buffer with the terminating zero. As well as fixing this, I
3022 have increased the buffer size to 1024 (and made a note to document this).
3023
3024 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3025 when Exim is waiting for an SMTP response from a remote server, Exim
3026 restarts its select() call on the socket, thereby resetting its timeout.
3027 This is not a problem when such interrupts are rare. Somebody set up a cron
3028 job to run exiwhat every 2 minutes, which is less than the normal select()
3029 timeout (5 or 10 minutes). This meant that the select() timeout never
3030 kicked in because it was always reset. I have fixed this by comparing the
3031 time when an interrupt arrives with the time at the start of the first call
3032 to select(). If more time than the timeout has elapsed, the interrupt is
3033 treated as a timeout.
3034
3035 5. Some internal re-factoring in preparation for the addition of Sieve
3036 extensions (by MH). In particular, the "personal" test is moved to a
3037 separate function, and given an option for scanning Cc: and Bcc: (which is
3038 not set for Exim filters).
3039
3040 6. When Exim created an email address using the login of the caller as the
3041 local part (e.g. when creating a From: or Sender: header line), it was not
3042 quoting the local part when it contained special characters such as @.
3043
3044 7. Installed new OpenBSD configuration files.
3045
3046 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3047 try to make them clearer.
3048
3049 9. Callout options, other than the timeout value, were being ignored when
3050 verifying sender addresses in header lines. For example, when using
3051
3052 verify = header_sender/callout=no_cache
3053
3054 the cache was (incorrectly) being used.
3055
305610. Added a missing instance of ${EXE} to the exim_install script; this affects
3057 only the Cygwin environment.
3058
305911. When return_path_on_delivery was set as a log selector, if different remote
3060 addresses in the same message used different return paths and parallel
3061 remote delivery occurred, the wrong values would sometimes be logged.
3062 (Whenever a remote delivery process finished, the return path value from
3063 the most recently started remote delivery process was logged.)
3064
306512. RFC 3848 specifies standard names for the "with" phrase in Received: header
3066 lines when AUTH and/or TLS are in use. This is the "received protocol"
3067 field. Exim used to use "asmtp" for authenticated SMTP, without any
3068 indication (in the protocol name) for TLS use. Now it follows the RFC and
3069 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3070 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3071 names appear in log lines as well as in Received: header lines.
3072
307313. Installed MH's patches for Sieve to add the "copy" and "vacation"
3074 extensions, and comparison tests, and to fix some bugs.
3075
307614. Changes to the "personal" filter test:
3077
3078 (1) The test was buggy in that it was just doing the equivalent of
3079 "contains" tests on header lines. For example, if a user's address was
3080 anne@some.where, the "personal" test would incorrectly be true for
3081
3082 To: susanne@some.where
3083
3084 This test is now done by extracting each address from the header in turn,
3085 and checking the entire address. Other tests that are part of "personal"
3086 are now done using regular expressions (for example, to check local parts
3087 of addresses in From: header lines).
3088
3089 (2) The list of non-personal local parts in From: addresses has been
3090 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3091 taken from the Sieve specification recommendations.
3092
3093 (3) If the message contains any header line starting with "List-" it is
3094 treated as non-personal.
3095
3096 (4) The test for "circular" in the Subject: header line has been removed
3097 because it now seems ill-conceived.
3098
309915. Minor typos in src/EDITME comments corrected.
3100
310116. Installed latest exipick from John Jetmore.
3102
310317. If headers_add on a router specified a text string that was too long for
3104 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3105 of string_sprintf() is now avoided.
3106
310718. $message_body_size was not set (it was always zero) when running the DATA
3108 ACL and the local_scan() function.
3109
311019. For the "mail" command in an Exim filter, no default was being set for
3111 the once_repeat time, causing a random time value to be used if "once" was
3112 specified. (If the value happened to be <= 0, no repeat happened.) The
3113 default is now 0s, meaning "never repeat". The "vacation" command was OK
3114 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3115 (I found it when inspecting the code).
3116
311720. There is now an overall timeout for performing a callout verification. It
3118 defaults to 4 times the callout timeout, which applies to individual SMTP
3119 commands during the callout. The overall timeout applies when there is more
3120 than one host that can be tried. The timeout is checked before trying the
3121 next host. This prevents very long delays if there are a large number of
3122 hosts and all are timing out (e.g. when the network connections are timing
3123 out). The value of the overall timeout can be changed by specifying an
3124 additional sub-option for "callout", called "maxwait". For example:
3125
3126 verify = sender/callout=5s,maxwait=20s
3127
312821. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3129 to the end before writing, but this should make it even safer).
3130
313122. Exim was forgetting that it had advertised PIPELINING for the second and
3132 subsequent messages on an SMTP connection. It was also not resetting its
3133 memory on STARTTLS and an internal HELO.
3134
313523. When Exim logs an SMTP synchronization error within a session, it now
3136 records whether PIPELINING has been advertised or not.
3137
313824. Added 3 instances of "(long int)" casts to time_t variables that were being
3139 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3140 rather than long int.
3141
314225. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3143
314426. Added the never_mail option to autoreply.
3145
3146
3147Exim version 4.41
3148-----------------
3149
3150 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3151 crash if the getsockname() call failed; this can happen if a connection is
3152 closed very soon after it is established. The problem was simply in the
3153 order in which certain operations were done, causing Exim to try to write
3154 to the SMTP stream before it had set up the file descriptor. The bug has
3155 been fixed by making things happen in the correct order.
3156
3157
3158Exim version 4.40
3159-----------------
3160
3161 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3162 before the connection was closed, thus losing the rejection response.
3163
3164 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3165 some early Solaris releases, but causes trouble in current releases where
3166 socklen_t is defined.
3167
3168 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3169 always exist.
3170
3171 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3172 configured.
3173
3174 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3175 that releasing the top of it at the end releases what was used for sub-
3176 expansions (unless the block got too big). However, discard this block if
3177 the first thing is a variable or header, so that we can use its block when
3178 it is dynamic (useful for very large $message_headers, for example).
3179
3180 6. Lookups now cache *every* query, not just the most recent. A new, separate
3181 store pool is used for this. It can be recovered when all lookup caches are
3182 flushed. Lookups now release memory at the end of their result strings.
3183 This has involved some general refactoring of the lookup sources.
3184
3185 7. Some code has been added to the store_xxx() functions to reduce the amount
3186 of flapping under certain conditions.
3187
3188 8. log_incoming_interface used to affect only the <= reception log lines. Now
3189 it causes the local interface and port to be added to several more SMTP log
3190 lines, for example "SMTP connection from", and rejection lines.
3191
3192 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3193
319410. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3195
319611. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3197 could be overwritten at the end of the current message (or the start of a
3198 new message if it was set in a HELO ACL). The value is now preserved for
3199 the duration of the SMTP connection.
3200
320112. If a transport had a headers_rewrite setting, and a matching header line
3202 contained an unqualified address, that address was qualified, even if it
3203 did not match any rewriting rules. The underlying bug was that the values
3204 of the flags that permit the existence of unqualified sender and recipient
3205 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3206 non-local messages, and by -bnq for local messages) were not being
3207 preserved with the message after it was received.
3208
320913. When Exim was logging an SMTP synchronization error, it could sometimes log
3210 "next input=" as part of the text comprising the host identity instead of
3211 the correct text. The code was using the same buffer for two different
3212 strings. However, depending on which order the printing function evaluated
3213 its arguments, the bug did not always show up. Under Linux, for example, my
3214 test suite worked just fine.
3215
321614. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3217 doesn't work with some older versions of Perl. It has been changed to "my",
3218 which in any case is probably the better facility to use.
3219
322015. A really picky compiler found some instances of statements for creating
3221 error messages that either had too many or two few arguments for the format
3222 string.
3223
322416. The size of the buffer for calls to the DNS resolver has been increased
3225 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3226 for addresses that have a lot of PTR records. This alleviates a problem; it
3227 does not fully solve it.
3228
322917. A dnsdb lookup for PTR records that receives more data than will fit in the
3230 buffer now truncates the list and logs the incident, which is the same
3231 action as happens when Exim is looking up a host name and its aliases.
3232 Previously in this situation something unpredictable would happen;
3233 sometimes it was "internal error: store_reset failed".
3234
323518. If a server dropped the connection unexpectedly when an Exim client was
3236 using GnuTLS and trying to read a response, the client delivery process
3237 crashed while trying to generate an error log message.
3238
323919. If a "warn" verb in an ACL added multiple headers to a message in a single
3240 string, for example:
3241
3242 warn message = H1: something\nH2: something
3243
3244 the text was added as a single header line from Exim's point of view
3245 though it ended up OK in the delivered message. However, searching for the
3246 second and subsequent header lines using $h_h2: did not work. This has been
3247 fixed. Similarly, if a system filter added multiple headers in this way,
3248 the routers could not see them.
3249
325020. Expanded the error message when iplsearch is called with an invalid key to
3251 suggest using net-iplsearch in a host list.
3252
325321. When running tests using -bh, any delays imposed by "delay" modifiers in
3254 ACLs are no longer actually imposed (and a message to that effect is
3255 output).
3256
325722. If a "gecos" field in a passwd entry contained escaped characters, in
3258 particular, if it contained a \" sequence, Exim got it wrong when building
3259 a From: or a Sender: header from that name. A second bug also caused
3260 incorrect handling when an unquoted " was present following a character
3261 that needed quoting.
3262
326323. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3264 was not being matched caselessly.
3265
326624. Arranged for all hyphens in the exim.8 source to be escaped with
3267 backslashes.
3268
326925. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3270 properly. Recipient callout cache records were still being keyed to include
3271 the sender, even when use_sender was set false. This led to far more
3272 callouts that were necessary. The sender is no longer included in the key
3273 when use_sender is false.
3274
327526. Added "control = submission" modifier to ACLs.
3276
327727. Added the ${base62d: operator to decode base 62 numbers.
3278
327928. dnsdb lookups can now access SRV records.
3280
328129. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3282 the configuration file.
3283
328430. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3285 (-v) mode. This makes the output for a verbose queue run more intelligible.
3286
328731. Added a use_postmaster feature to recipient callouts.
3288
328932. Added the $body_zerocount variable, containing the number of binary zero
3290 bytes in the message body.
3291
329233. The time of last modification of the "new" subdirectory is now used as the
3293 "mailbox time last read" when there is a quota error for a maildir
3294 delivery.
3295
329634. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3297
329835. Added +ignore_unknown as a special item in host lists.
3299
330036. Code for decoding IPv6 addresses in host lists is now included, even if
3301 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3302 address was recognized as an IP address, but was then not correctly decoded
3303 into binary, causing unexpected and incorrect effects when compared with
3304 another IP address.
3305
3306
3307Exim version 4.34
3308-----------------
3309
3310 1. Very minor rewording of debugging text in manualroute to say "list of
3311 hosts" instead of "hostlist".
3312
3313 2. If verify=header_syntax was set, and a header line with an unqualified
3314 address (no domain) and a large number of spaces between the end of the
3315 name and the colon was received, the reception process suffered a buffer
3316 overflow, and (when I tested it) crashed. This was caused by some obsolete
3317 code that should have been removed. The fix is to remove it!
3318
3319 3. When running in the test harness, delay a bit after writing a bounce
3320 message to get a bit more predictability in the log output.
3321
3322 4. Added a call to search_tidyup() just before forking a reception process. In
3323 theory, someone could use a lookup in the expansion of smtp_accept_max_
3324 per_host which, without the tidyup, could leave open a database connection.
3325
3326 5. Added the variables $recipient_data and $sender_data which get set from a
3327 lookup success in an ACL "recipients" or "senders" condition, or a router
3328 "senders" option, similar to $domain_data and $local_part_data.
3329
3330 6. Moved the writing of debug_print from before to after the "senders" test
3331 for routers.
3332
3333 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3334 problems for message scanning, either using a data ACL, or using
3335 local_scan() because the Received: header was not generated till after they
3336 were called (in order to set the time as the time of reception completion).
3337 I have revised the way this works. The header is now generated after the
3338 body is received, but before the ACL or local_scan() are called. After they
3339 are run, the timestamp in the header is updated.
3340
3341
3342Exim version 4.33
3343-----------------
3344
3345 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3346 before starting a queue runner without re-exec. This happened only when
3347 deliver_drop_privilege was set or when the Exim user was set to root. The
3348 effect of the bug was that timeouts during subsequent deliveries caused
3349 crashes instead of being properly handled. The handler is now left at its
3350 default (and expected) setting.
3351
3352 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3353 message, again when deliver_drop_privilege is set or Exim is run as root.
3354 The bug described in (1) was not present in this case, but the tidying up
3355 of the other signals was missing. I have made the two cases consistent.
3356
3357 3. The ignore_target_hosts setting on a manualroute router was being ignored
3358 for hosts that were looked up using the /MX notation.
3359
3360 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3361 in domain lists.
3362
3363 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3364 operated on the sender address. After changing the $sender_address to <>
3365 for the sender address verify, Exim was re-instated it as the original
3366 (before rewriting) address, but remembering that it had rewritten it, so it
3367 wasn't rewriting it again. This bug also had the effect of breaking the
3368 sender address verification caching when the sender address was rewritten.
3369
3370 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3371 This has been changed so that if the ip literal address matches
3372 ignore_target_hosts, the router declines.
3373
3374 7. Added expansion conditions match_domain, match_address, and match_local_
3375 part (NOT match_host).
3376
3377 8. The placeholder for the Received: header didn't have a length field set.
3378
3379 9. Added code to Exim itself and to exim_lock to test for a specific race
3380 condition that could lead to file corruption when using MBX delivery. The
3381 issue is with the lockfile that is created in /tmp. If this file is removed
3382 after a process has opened it but before that process has acquired a lock,
3383 there is the potential for a second process to recreate the file and also
3384 acquire a lock. This could lead to two Exim processes writing to the file
3385 at the same time. The added code performs the same test as UW imapd; it
3386 checks after acquiring the lock that its file descriptor still refers to
3387 the same named file.
3388
338910. The buffer for building added header lines was of fixed size, 8192 bytes.
3390 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3391 when Exim is built.
3392
339311. Added the smtp_active_hostname option. If used, this will typically be made
3394 to depend on the incoming interface address. Because $interface_address is
3395 not set up until the daemon has forked a reception process, error responses
3396 that can happen earlier (such as "too many connections") no longer contain
3397 a host name.
3398
339912. If an expansion in a condition on a "warn" statement fails because a lookup
3400 defers, the "warn" statement is abandoned, and the next ACL statement is
3401 processed. Previously this caused the whole ACL to be aborted.
3402
340313. Added the iplsearch lookup type.
3404
340514. Added ident_timeout as a log selector.
3406
340715. Added tls_certificate_verified as a log selector.
3408
340916. Added a global option tls_require_ciphers (compare the smtp transport
3410 option of the same name). This controls incoming TLS connections.
3411
341217. I finally figured out how to make tls_require_ciphers do a similar thing
3413 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3414 before starting the TLS session.
3415
341618. Tabs are now shown as \t in -bP output.
3417
341819. If the log selector return_path_on_delivery was set, Exim crashed when
3419 bouncing a message because it had too many Received: header lines.
3420
342120. If two routers both had headers_remove settings, and the first one included
3422 a superfluous trailing colon, the final name in the first list and the
3423 first name in the second list were incorrectly joined into one item (with a
3424 colon in the middle).
3425
3426
3427Exim version 4.32
3428-----------------
3429
3430 1. Added -C and -D options to the exinext utility, mainly to make it easier
3431 to include in the automated testing, but these could be helpful when
3432 multiple configurations are in use.
3433
3434 2. The exinext utility was not formatting the output nicely when there was
3435 an alternate port involved in the retry record key, nor when there was a
3436 message id as well (for retries that were specific to a specific message
3437 and a specific host). It was also confused by IPv6 addresses, because of
3438 the additional colons they contain. I have fixed the IPv4 problem, and
3439 patched it up to do a reasonable job for IPv6.
3440
3441 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3442 delivery, the log line now contains "pipelined" if PIPELINING was used.
3443
3444 4. An SMTP transport process used to panic and die if the bind() call to set
3445 an explicit outgoing interface failed. This has been changed; it is now
3446 treated in the same way as a connect() failure.
3447
3448 5. A reference to $sender_host_name in the part of a conditional expansion
3449 that was being skipped was still causing a DNS lookup. This no longer
3450 occurs.
3451
3452 6. The def: expansion condition was not recognizing references to header lines
3453 that used bh_ and bheader_.
3454
3455 7. Added the _cache feature to named lists.
3456
3457 8. The code for checking quota_filecount in the appendfile transport was
3458 allowing one more file than it should have been.
3459
3460 9. For compatibility with Sendmail, the command line option
3461
3462 -prval:sval
3463
3464 is equivalent to
3465
3466 -oMr rval -oMs sval
3467
3468 and sets the incoming protocol and host name (for trusted callers). The
3469 host name and its colon can be omitted when only the protocol is to be set.
3470 Note the Exim already has two private options, -pd and -ps, that refer to
3471 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3472 "s", but I don't think that's a major issue.
3473
347410. A number of refactoring changes to the code, none of which should affect
3475 Exim's behaviour:
3476
3477 (a) The number of logging options was getting close to filling up the
3478 32-bit word that was used as a bit map. I have split them into two classes:
3479 those that are passed in the argument to log_write(), and those that are
3480 only ever tested independently outside of that function. These are now in
3481 separate 32-bit words, so there is plenty of room for expansion again.
3482 There is no change in the user interface or the logging behaviour.
3483
3484 (b) When building, for example, log lines, the code previously used a
3485 macro that called string_cat() twice, in order to add two strings. This is
3486 not really sufficiently general. Furthermore, there was one instance where
3487 it was actually wrong because one of the argument was used twice, and in
3488 one call a function was used. (As it happened, calling the function twice
3489 did not affect the overall behaviour.) The macro has been replaced by a
3490 function that can join an arbitrary number of extra strings onto a growing
3491 string.
3492
3493 (c) The code for expansion conditions now uses a table and a binary chop
3494 instead of a serial search (which was left over from when there were very
3495 few conditions). Also, it now recognizes conditions like "pam" even when
3496 the relevant support is not compiled in: a suitably worded error message is
3497 given if an attempt is made to use such a condition.
3498
349911. Added ${time_interval:xxxxx}.
3500
350112. A bug was causing one of the ddress fields not to be passed back correctly
3502 from remote delivery subprocesses. The field in question was not being
3503 subsequently used, so this caused to problems in practice.
3504
350513. Added new log selectors queue_time and deliver_time.
3506
350714. Might have fixed a bug in maildirsizefile handling that threw up
3508 "unexpected character" debug warnings, and recalculated the data
3509 unnecessarily. In any case, I expanded the warning message to give more
3510 information.
3511
351215. Added the message "Restricted characters in address" to the statements in
3513 the default ACL that block characters like @ and % in local parts.
3514
351516. Change 71 for release 4.31 proved to be much less benign that I imagined.
3516 Three changes have been made:
3517
3518 (a) There was a serious bug; a negative response to MAIL caused the whole
3519 recipient domain to be cached as invalid, thereby blocking all messages
3520 to all local parts at the same domain, from all senders. This bug has
3521 been fixed. The domain is no longer cached after a negative response to
3522 MAIL if the sender used is not empty.
3523
3524 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3525 been restored.
3526
3527 (c) A new callout option, "use_sender" has been added for people who want
3528 the modified behaviour.
3529
3530
3531Exim version 4.31
3532-----------------
3533
3534 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3535 Larry Rosenman.
3536
3537 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3538 indeed breaks things for older releases.
3539
3540 3. Added additional logging to the case where there is a problem reading data
3541 from a filter that is running in a subprocess using a pipe, in order to
3542 try to track down a specific problem.
3543
3544 4. Testing facility fudge: when running in the test harness and attempting
3545 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3546 getting "No route to host". Convert this to a timeout.
3547
3548 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3549 warning.
3550
3551 6. Some OS don't have socklen_t but use size_t instead. This affects the
3552