NetBSD-specific configuration patches from David Brownlee.
[exim.git] / doc / doc-txt / ChangeLog
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64f2600a 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.519 2007/06/26 11:16:54 ph10 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
eb4c0de6
PH
6Exim version 4.68
7-----------------
8
9PH/01 Another patch from the Sieve maintainer.
10
6a3bceb1
PH
11PH/02 When an IPv6 address is converted to a string for single-key lookup
12 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
13 dots are used instead of colons so that keys in lsearch files need not
14 contain colons. This was done some time before quoting was made available
15 in lsearch files. However, iplsearch files do require colons in IPv6 keys
16 (notated using the quote facility) so as to distinguish them from IPv4
17 keys. This meant that lookups for IP addresses in host lists did not work
18 for iplsearch lookups.
19
20 This has been fixed by arranging for IPv6 addresses to be expressed with
21 colons if the lookup type is iplsearch. This is not incompatible, because
22 previously such lookups could never work.
23
24 The situation is now rather anomolous, since one *can* have colons in
25 ordinary lsearch keys. However, making the change in all cases is
26 incompatible and would probably break a number of configurations.
27
2e30fa9d
TK
28TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
29 version.
30
0806a9c5
MH
31MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
32 conversion specification without a maximum field width, thereby enabling
33 a rogue spamd server to cause a buffer overflow. While nobody in their
34 right mind would setup Exim to query an untrusted spamd server, an
35 attacker that gains access to a server running spamd could potentially
36 exploit this vulnerability to run arbitrary code as the Exim user.
37
ae276964
TK
38TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
39 $primary_hostname instead of what libspf2 thinks the hosts name is.
40
0f2cbd1b
MH
41MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
42 a directory entry by the name of the lookup key. Previously, if a
43 symlink pointed to a non-existing file or a file in a directory that
44 Exim lacked permissions to read, a lookup for a key matching that
45 symlink would fail. Now it is enough that a matching directory entry
46 exists, symlink or not. (Bugzilla 503.)
47
2b85bce7
PH
48PH/03 The body_linecount and body_zerocount variables are now exported in the
49 local_scan API.
50
93655c46
PH
51PH/04 Added the $dnslist_matched variable.
52
6c512171
PH
53PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
54 This means they are set thereafter only if the connection becomes
55 encrypted.
56
57PH/06 Added the client_condition to authenticators so that some can be skipped
58 by clients under certain conditions.
59
aa6dc513
PH
60PH/07 The error message for a badly-placed control=no_multiline_responses left
61 "_responses" off the end of the name.
62
a96603a0
PH
63PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
64
8f240103
PH
65PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
66 (without spaces) instead of just copying the configuration text.
67
68PH/10 Added the /noupdate option to the ratelimit ACL condition.
69
d677b2f2
PH
70PH/11 Added $max_received_linelength.
71
d52120f2
PH
72PH/12 Added +ignore_defer and +include_defer to host lists.
73
64f2600a
PH
74PH/13 Installed PCRE version 7.2. This needed some changes because of the new
75 way in which PCRE > 7.0 is built.
76
eb4c0de6 77
b4ed4da0
PH
78Exim version 4.67
79-----------------
80
22ad45c9
MH
81MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
82 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
83 Jan Srzednicki.
84
b4ed4da0
PH
85PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
86 issue a MAIL command.
87
431b7361
PH
88PH/02 In an ACL statement such as
89
90 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
91
92 if a client was not listed at all, or was listed with a value other than
93 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
94 the condition was not true (as it should be), so access was not denied.
95 The bug was that the ! inversion was incorrectly passed on to the second
96 item. This has been fixed.
97
98PH/03 Added additional dnslists conditions == and =& which are different from
99 = and & when the dns lookup returns more than one IP address.
100
83da1223
PH
101PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
102 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
103
54fc8428
PH
104PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
105 FSYNC, which compiles an option called disable_fsync that allows for
106 bypassing fsync(). The documentation is heavily laced with warnings.
107
34c5e8dd
SC
108SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
109
bbe15da8
PH
110PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
111 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
112 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
113 including adding "make clean"; (3) Added -fPIC when compiling the test
114 dynamically loaded module, to get rid of a warning.
115
0e8a9471
MH
116MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
117 message fails, move_frozen_messages = true and ignore_bounce_errors_after
118 = 0s. The bug is otherwise harmless.
119
f0872424
PH
120PH/07 There was a bug in the dovecot authenticator such that the value of
121 $auth1 could be overwritten, and so not correctly preserved, after a
122 successful authentication. This usually meant that the value preserved by
123 the server_setid option was incorrect.
124
b01dd148
PH
125PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
126
6bf342e1
PH
127PH/09 Installed PCRE release 7.0.
128
273f34d0
PH
129PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
130 run for batched SMTP input. It is now run at the start of every message
131 in the batch. While fixing this I discovered that the process information
132 (output by running exiwhat) was not always getting set for -bs and -bS
133 input. This is fixed, and it now also says "batched" for BSMTP.
134
cf8b11a5
PH
135PH/11 Added control=no_pipelining.
136
41c7c167
PH
137PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
138 patch, slightly modified), and move the expansion of helo_data till after
139 the connection is made in the smtp transport (so it can use these
140 values).
141
9c57cbc0
PH
142PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
143
f3f065bb
PH
144PH/14 Added log_selector = +pid.
145
047bdd8c
PH
146PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
147
0ce9abe6
PH
148PH/16 Add ${if forany and ${if forall.
149
0e22dfd1
PH
150PH/17 Added dsn_from option to vary the From: line in DSNs.
151
4c590bd1
PH
152PH/18 Flush SMTP output before performing a callout, unless control =
153 no_callout_flush is set.
154
09945f1e
PH
155PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
156 was true (the default) a successful delivery failed to delete the retry
157 item, thus causing premature timeout of the address. The bug is now
158 fixed.
159
c51b8e75
PH
160PH/20 Added hosts_avoid_pipelining to the smtp transport.
161
e28326d8
PH
162PH/21 Long custom messages for fakedefer and fakereject are now split up
163 into multiline reponses in the same way that messages for "deny" and
164 other ACL rejections are.
165
75b1493f
PH
166PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
167 with slight modification.
168
7c5214ec
PH
169PH/23 Applied sieve patches from the maintainer "tracking the latest notify
170 draft, changing the syntax and factoring some duplicate code".
171
4311097e
PH
172PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
173 for deliveries of the second and subsequent messages over the same SMTP
174 connection.
175
29f89cad
PH
176PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
177 ${reduce, with only minor "tidies".
178
5e687460
SC
179SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
180
c3611384
PH
181PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
182 expansion side effects.
183
5a11a7b4
PH
184PH/27 When a message times out after an over-quota error from an Exim-imposed
185 quota, the bounce message says "mailbox is full". This message was not
186 being given when it was a system quota that was exceeded. It now should
187 be the same.
188
0e20aff9
MH
189MH/03 Made $recipients available in local_scan(). local_scan() already has
190 better access to the recipient list through recipients_list[], but
191 $recipients can be useful in postmaster-provided expansion strings.
192
ca86f471
PH
193PH/28 The $smtp_command and $smtp_command_argument variables were not correct
194 in the case of a MAIL command with additional options following the
195 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
196 were accidentally chopped off.
197
a14e5636
PH
198PH/29 SMTP synchronization checks are implemented when a command is read -
199 there is a check that no more input is waiting when there shouldn't be
200 any. However, for some commands, a delay in an ACL can mean that it is
201 some time before the response is written. In this time, more input might
202 arrive, invalidly. So now there are extra checks after an ACL has run for
203 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
204 pipelining has not been advertised.
205
ec95d1a6
PH
206PH/30 MH's patch to allow iscntrl() characters to be list separators.
207
42855d71
PH
208PH/31 Unlike :fail:, a custom message specified with :defer: was not being
209 returned in the SMTP response when smtp_return_error_details was false.
210 This has been fixed.
211
57c2c631
PH
212PH/32 Change the Dovecot authenticator to use read() and write() on the socket
213 instead of the C I/O that was originally supplied, because problems were
214 reported on Solaris.
215
58c01c94
PH
216PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
217 Exim which did not show up earlier: it was assuming that a call to
218 SSL_CTX_set_info_callback() might give an error value. In fact, there is
219 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
220 was a macro that became an assignment, so it seemed to work. This has
221 changed to a proper function call with a void return, hence the compile
222 error. Exim's code has been fixed.
223
dee5a20a
PH
224PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
225 cpus.
226
d2ee6114
PH
227PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
228
b2d5182b
PH
229PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
230
79749a79
PH
231PH/37 If a message is not accepted after it has had an id assigned (e.g.
232 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
233 "Completed" line in the log. When some messages of this type were
234 selected by exigrep, they were listed as "not completed". Others were
235 picked up by some special patterns. I have improved the selection
236 criteria to be more general.
79749a79 237
c456d9bb
PH
238PH/38 The host_find_failed option in the manualroute router can now be set
239 to "ignore", to completely ignore a host whose IP address cannot be
240 found. If all hosts are ignored, the behaviour is controlled by the new
241 host_all_ignored option.
242
cd9868ec
PH
243PH/39 In a list of hosts for manualroute, if one item (either because of multi-
244 homing or because of multiple MX records with /mx) generated more than
245 one IP address, and the following item turned out to be the local host,
246 all the secondary addresses of the first item were incorrectly removed
247 from the list, along with the local host and any following hosts (which
248 is what is supposed to happen).
249
ebeaf996
PH
250PH/40 When Exim receives a message, it writes the login name, uid, and gid of
251 whoever called Exim into the -H file. In the case of the daemon it was
252 behaving confusingly. When first started, it used values for whoever
253 started the daemon, but after a SIGHUP it used the Exim user (because it
254 calls itself on a restart). I have changed the code so that it now always
255 uses the Exim user.
256
2679d413
PH
257PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
258 message are rejected with the same error (e.g. no authentication or bad
259 sender address), and a DATA command is nevertheless sent (as can happen
260 with PIPELINING or a stupid MUA), the error message that was given to the
261 RCPT commands is included in the rejection of the DATA command. This is
262 intended to be helpful for MUAs that show only the final error to their
263 users.
264
84024b72
PH
265PH/42 Another patch from the Sieve maintainer.
266
8005d38e
SC
267SC/02 Eximstats - Differentiate between permanent and temporary rejects.
268 Eximstats - Fixed some broken HTML links and added missing column headers
269 (Jez Hancock).
270 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
271 columns for Rejects, Temp Rejects, Ham, and Spam rows.
272
3298c6c6
SC
273SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
274
a43a27c5
PH
275PH/43 Yet another patch from the Sieve maintainer.
276
58eb016e 277PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
278 the response to the final '.' that terminates a message, but only in the
279 case where the client has not sent further data following the '.'
280 (unfortunately, this is allowed). However, in many cases there won't be
281 any further data because there won't be any more messages to send. A call
282 to select() can be used: if it shows that the input is "ready", there is
283 either input waiting, or the socket has been closed. An attempt to read
284 the next input character can distinguish the two cases. Previously, Exim
58eb016e 285 would have sent an OK response which the client would never have see.
563b63fa
PH
286 This could lead to message repetition. This fix should cure that, at
287 least in a lot of common cases.
58eb016e 288
b43a74ea
PH
289PH/45 Do not advertise STARTTLS in response to HELP unless it would be
290 advertised in response to EHLO.
291
b4ed4da0 292
5dd1517f
PH
293Exim version 4.66
294-----------------
295
296PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
297 fixed by 4.65/MH/01 (is this a record?) are fixed:
298
299 (i) An empty string was always treated as zero by the numeric comparison
300 operators. This behaviour has been restored.
301
302 (ii) It is documented that the numeric comparison operators always treat
303 their arguments as decimal numbers. This was broken in that numbers
304 starting with 0 were being interpreted as octal.
305
306 While fixing these problems I realized that there was another issue that
307 hadn't been noticed. Values of message_size_limit (both the global option
308 and the transport option) were treated as octal if they started with 0.
309 The documentation was vague. These values are now always treated as
310 decimal, and I will make that clear in the documentation.
311
312
93cfa765
TK
313Exim version 4.65
314-----------------
315
316TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
317 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
318 versions. (#438)
319
d6066548
MH
320MH/01 Don't check that the operands of numeric comparison operators are
321 integers when their expansion is in "skipping" mode (fixes bug
322 introduced by 4.64-PH/07).
323
4362ff0d
PH
324PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
325 child addresses, Exim now panics and dies. Previously, because the count
326 is held in a short int, deliveries were likely to be lost. As such a
327 large number of recipients for a single message is ridiculous
328 (performance will be very, very poor), I have chosen to impose a limit
329 rather than extend the field.
330
93cfa765 331
944e9e9c
TF
332Exim version 4.64
333-----------------
aa41d2de 334
21d74bd9
TK
335TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
336 leftover -K file (the existence of which was triggered by #402).
337 While we were at it, introduced process PID as part of the -K
338 filename. This should rule out race conditions when creating
339 these files.
340
341TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
342 processing considerably. Previous code took too long for large mails,
343 triggering a timeout which in turn triggers #401.
344
345TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
346 in the DK code in transports.c. sendfile() is not really portable,
347 hence the _LINUX specificness.
944e9e9c
TF
348
349TF/01 In the add_headers option to the mail command in an Exim filter,
350 there was a bug that Exim would claim a syntax error in any
351 header after the first one which had an odd number of characters
352 in the field name.
353
2b1c6e3a
PH
354PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
355 callout verification, Exim cached a "reject" for the entire domain. This
356 is correct for most verifications, but it is not correct for a recipient
357 verification with use_sender or use_postmaster set, because in that case
358 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
359 case of MAIL FROM:<> rejection from other early rejections (e.g.
360 rejection of HELO). When verifying a recipient using a non-null MAIL
361 address, the cache is ignored if it shows MAIL FROM:<> rejection.
362 Whatever the result of the callout, the value of the domain cache is
363 left unchanged (for any other kind of callout, getting as far as trying
364 RCPT means that the domain itself is ok).
365
1f872c80
PH
366PH/02 Tidied a number of unused variable and signed/unsigned warnings that
367 gcc 4.1.1 threw up.
368
369PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
370 manifest itself as EPIPE rather than ECONNECT. When tidying away a
371 session, the daemon ignores ECONNECT errors and logs others; it now
372 ignores EPIPE as well.
373
d203e649
PH
374PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
375 (quoted-printable decoding).
376
cc2ed8f7 377PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 378 later the small subsequent patch to fix an introduced bug.
f951fd57 379
ddfcd446
PH
380PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
381
d45b1de8
PH
382PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
383
384PH/08 An error is now given if message_size_limit is specified negative.
385
38a0a95f 386PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 387 to be given (somewhat) arbitrary names.
38a0a95f 388
a2405d83
JJ
389JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
390 in 4.64-PH/09.
391
392JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
393 miscellaneous code fixes
394
6ea85e9a
PH
395PH/10 Added the log_reject_target ACL modifier to specify where to log
396 rejections.
397
26da7e20
PH
398PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
399 hostname. This is wrong, because it relates to the incoming message (and
400 probably the interface on which it is arriving) and not to the outgoing
401 callout (which could be using a different interface). This has been
402 changed to use the value of the helo_data option from the smtp transport
403 instead - this is what is used when a message is actually being sent. If
404 there is no remote transport (possible with a router that sets up host
405 addresses), $smtp_active_hostname is used.
6ea85e9a 406
14aa5a05 407PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 408 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
409 (a) The code assumed that strncpy() returns a negative number on buffer
410 overflow, which isn't the case. Replaced with Exim's string_format()
411 function.
412 (b) There were several signed/unsigned issues. I just did the minimum
413 hacking in of casts. There is scope for a larger refactoring.
414 (c) The code used strcasecmp() which is not a standard C function.
415 Replaced with Exim's strcmpic() function.
416 (d) The code set only $1; it now sets $auth1 as well.
417 (e) A simple test gave the error "authentication client didn't specify
418 service in request". It would seem that Dovecot has changed its
419 interface. Fortunately there's a specification; I followed it and
420 changed what the client sends and it appears to be working now.
421
ff75a1f7
PH
422PH/13 Added $message_headers_raw to provide the headers without RFC 2047
423 decoding.
424
e6f6568e
PH
425PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
426 address A is aliased to B and C, where B exists and C does not. Without
427 -v the output is "A verified" because verification stops after a
428 successful redirection if more than one address is generated. However,
429 with -v the child addresses are also verified. Exim was outputting "A
430 failed to verify" and then showing the successful verification for C,
431 with its parentage. It now outputs "B failed to verify", showing B's
432 parentage before showing the successful verification of C.
433
d6f6e0dc
PH
434PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
435 look up a TXT record in a specific list after matching in a combined
436 list.
437
322050c2
PH
438PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
439 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
440 they consult the DNS. I had assumed they would set it the way they
441 wanted; and indeed my experiments on Linux seem to show that in some
442 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
443 To be on the safe side, however, I have now made the interface to
444 host_find_byname() similar to host_find_bydns(), with an argument
445 containing the DNS resolver options. The host_find_byname() function now
446 sets these options at its start, just as host_find_bydns() does. The smtp
447 transport options dns_qualify_single and dns_search_parents are passed to
448 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
449 of host_find_byname() use the default settings of RES_DEFNAMES
450 (qualify_single) but not RES_DNSRCH (search_parents).
451
08955dd3
PH
452PH/17 Applied (a modified version of) Nico Erfurth's patch to make
453 spool_read_header() do less string testing, by means of a preliminary
454 switch on the second character of optional "-foo" lines. (This is
455 overdue, caused by the large number of possibilities that now exist.
456 Originally there were few.) While I was there, I also converted the
457 str(n)cmp tests so they don't re-test the leading "-" and the first
458 character, in the hope this might squeeze out yet more improvement.
459
1eccaa59
PH
460PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
461 flag allowing group syntax was set by the header_syntax check but not
462 turned off, possible causing trouble later; (2) The flag was not being
463 set at all for the header_verify test, causing "group"-style headers to
464 be rejected. I have now set it in this case, and also caused header_
465 verify to ignore an empty address taken from a group. While doing this, I
466 came across some other cases where the code for allowing group syntax
467 while scanning a header line wasn't quite right (mostly, not resetting
468 the flag correctly in the right place). These bugs could have caused
469 trouble for malformed header lines. I hope it is now all correct.
470
602e59e5
PH
471PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
472 with the "reply" argument non-NULL. The code, however (which originally
473 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
474 but it didn't always do it. This confused somebody who was copying the
475 code for some other use. I have removed all the tests.
476
411ef850
PH
477PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
478 feature that was used to support insecure browsers during the U.S. crypto
479 embargo. It requires special client support, and Exim is probably the
480 only MTA that supported it -- and would never use it because real RSA is
481 always available. This code has been removed, because it had the bad
482 effect of slowing Exim down by computing (never used) parameters for the
483 RSA_EXPORT functionality.
484
7befa435
PH
485PH/21 On the advice of Timo Sirainen, added a check to the dovecot
486 authenticator to fail if there's a tab character in the incoming data
487 (there should never be unless someone is messing about, as it's supposed
488 to be base64-encoded). Also added, on Timo's advice, the "secured" option
489 if the connection is using TLS or if the remote IP is the same as the
490 local IP, and the "valid-client-cert option" if a client certificate has
491 been verified.
492
48da4259 493PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
494 authenticators. This can be used for authorization after authentication
495 succeeds. (In the case of plaintext, it servers for both authentication
496 and authorization.)
497
48da4259
PH
498PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
499 if any retry times were supplied.
500
d1d5595c
PH
501PH/24 Exim crashed if verify=helo was activated during an incoming -bs
502 connection, where there is no client IP address to check. In this
503 situation, the verify now always succeeds.
504
0ef732d9
PH
505PH/25 Applied John Jetmore's -Mset patch.
506
328895cc
PH
507PH/26 Added -bem to be like -Mset, but loading a message from a file.
508
fd700877
PH
509PH/27 In a string expansion for a processed (not raw) header when multiple
510 headers of the same name were present, leading whitespace was being
511 removed from all of them, but trailing whitespace was being removed only
512 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
513 before concatenation. Completely empty headers in a concatenation (as
514 before) are ignored.
fd700877 515
8dce1a6f
PH
516PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
517 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
518
17af4a17
PH
519PH/29 [Removed. This was a change that I later backed out, and forgot to
520 correct the ChangeLog entry (that I had efficiently created) before
521 committing the later change.]
f6c332bd
PH
522
523PH/30 Exim was sometimes attempting to deliver messages that had suffered
524 address errors (4xx response to RCPT) over the same connection as other
525 messages routed to the same hosts. Such deliveries are always "forced",
526 so retry times are not inspected. This resulted in far too many retries
527 for the affected addresses. The effect occurred only when there were more
528 hosts than the hosts_max_try setting in the smtp transport when it had
529 the 4xx errors. Those hosts that it had tried were not added to the list
530 of hosts for which the message was waiting, so if all were tried, there
531 was no problem. Two fixes have been applied:
532
533 (i) If there are any address or message errors in an SMTP delivery, none
534 of the hosts (tried or untried) are now added to the list of hosts
535 for which the message is waiting, so the message should not be a
536 candidate for sending over the same connection that was used for a
537 successful delivery of some other message. This seems entirely
538 reasonable: after all the message is NOT "waiting for some host".
539 This is so "obvious" that I'm not sure why it wasn't done
540 previously. Hope I haven't missed anything, but it can't do any
541 harm, as the worst effect is to miss an optimization.
542
543 (ii) If, despite (i), such a delivery is accidentally attempted, the
544 routing retry time is respected, so at least it doesn't keep
545 hammering the server.
546
c1114884
PH
547PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
548 in ${readsocket because some servers need this prod.
549
7a0743eb
PH
550PH/32 Added some extra debug output when updating a wait-xxx database.
551
0d85fa3f
PH
552PH/33 The hint "could be header name not terminated by colon", which has been
553 given for certain expansion errors for a long time, was not being given
554 for the ${if def:h_colon_omitted{... case.
555
1bf43b78
PH
556PH/34 The spec says: "With one important exception, whenever a domain list is
557 being scanned, $domain contains the subject domain." There was at least
558 one case where this was not true.
559
520de300
PH
560PH/35 The error "getsockname() failed: connection reset by peer" was being
561 written to the panic log as well as the main log, but it isn't really
562 panic-worthy as it just means the connection died rather early on. I have
563 removed the panic log writing for the ECONNRESET error when getsockname()
564 fails.
565
48c7f9e2
PH
566PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
567 runs only) independently of the message's sender address. This meant
568 that, if the 4xx error was in fact related to the sender, a different
569 message to the same recipient with a different sender could confuse
570 things. In particualar, this can happen when sending to a greylisting
571 server, but other circumstances could also provoke similar problems.
572 I have changed the default so that the retry time for these errors is now
573 based a combination of the sender and recipient addresses. This change
574 can be overridden by setting address_retry_include_sender=false in the
575 smtp transport.
576
99ea1c86
PH
577PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
578 remote server are returned as part of bounce messages. This was not
579 happening for LMTP over a pipe (the lmtp transport), but now it is the
580 same for both kinds of LMTP.
581
a2042e78
PH
582PH/38 Despite being documented as not happening, Exim was rewriting addresses
583 in header lines that were in fact CNAMEs. This is no longer the case.
584
4fbcfc2e
PH
585PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
586 and queue runs started by the daemon processed all messages. This has
587 been fixed so that -R and -S can now usefully be given with -q<time>.
588
aa41d2de
PH
589PH/40 Import PCRE release 6.7 (fixes some bugs).
590
af561417
PH
591PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
592
3cc66b45
PH
593PH/42 Give an error if -q is specified more than once.
594
194cc0e4
PH
595PH/43 Renamed the variables $interface_address and $interface_port as
596 $received_ip_address and $received_port, to make it clear that these
597 values apply to message reception, and not to the outgoing interface when
598 a message is delivered. (The old names remain recognized, of course.)
599
a401ddaa
PH
600PH/44 There was no timeout on the connect() call when using a Unix domain
601 socket in the ${readsocket expansion. There now is.
602
4e88a19f
PH
603PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
604 be meaningful with "accept".
605
d7d7b289
SC
606SC/01 Eximstats V1.43
607 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
608
609SC/02 Eximstats V1.44
610 Use a glob alias rather than an array ref in the generated
611 parser. This improves both readability and performance.
612
613SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
614 Collect SpamAssassin and rejection statistics.
615 Don't display local sender or destination tables unless
616 there is data to show.
617 Added average volumes into the top table text output.
618
619SC/04 Eximstats V1.46
620 Collect data on the number of addresses (recipients)
621 as well as the number of messages.
622
623SC/05 Eximstats V1.47
624 Added 'Message too big' to the list of mail rejection
625 reasons (thanks to Marco Gaiarin).
626
627SC/06 Eximstats V1.48
628 Mainlog lines which have GMT offsets and are too short to
629 have a flag are now skipped.
630
631SC/07 Eximstats V1.49 (Alain Williams)
632 Added the -emptyok flag.
633
634SC/08 Eximstats V1.50
635 Fixes for obtaining the IP address from reject messages.
636
0ea2a468
JJ
637JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
638 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
639 whitesspace changes from 4.64-PH/27
640
641JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
642 match 4.64-PH/13
643
644JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
645 are found, allow negative numbers in numeric criteria)
646
647JJ/06 exipick.20061117.2, added new $message_body_missing variable
648
649JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
650 to match changes made in 4.64-PH/43
651
8a10f5a4
PH
652PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
653
30e18802
PH
654PH/47 Put in an explicit test for a DNS lookup of an address record where the
655 "domain" is actually an IP address, and force a failure. This locks out
656 those revolvers/nameservers that support "A-for-A" lookups, in
657 contravention of the specifications.
658
55728a4f
PH
659PH/48 When a host name was looked up from an IP address, and the subsequent
660 forward lookup of the name timed out, the host name was left in
661 $sender_host_name, contrary to the specification.
d7d7b289 662
d7837193
PH
663PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
664 restricted to single-key lookups, Exim was not diagnosing an error if
665 * or *@ was used with a query-style lookup.
666
87054a31
PH
667PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
668
ea2c01d2
MH
669MH/01 local_scan ABI version incremented to 1.1. It should have been updated
670 long ago, but noone interested enough thought of it. Let's just say that
671 the "1.1" means that there are some new functions that weren't there at
672 some point in the past.
673
e4fa6968
PH
674PH/51 Error processing for expansion failure of helo_data from an smtp
675 transport during callout processing was broken.
676
56f5d9bd
PH
677PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
678 tested/used via the -bh/-bhc/-bs options.
679
922e1c28
PH
680PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
681 bug, fixed in subsequent PCRE releases).
682
21eb6e72
PH
683PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
684 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
685
a0540757
PH
686PH/55 Check for a ridiculously long file name in exim_dbmbuild.
687
944e9e9c 688
478be7b0
SC
689Exim version 4.63
690-----------------
691
692SC/01 Use a glob alias rather than an array ref in eximstats generated
693 parser. This improves both readability and performance.
694
695SC/02 Collect SpamAssassin and rejection statistics in eximstats.
696 Don't display local sender or destination tables in eximstats unless
697 there is data to show.
698 Added average volumes into the eximstats top table text output.
699
700SC/03 Collect data on the number of addresses (recipients) as well
701 as the number of messages in eximstats.
702
2b965a65
TF
703TF/01 Correct an error in the documentation for the redirect router. Exim
704 does (usually) call initgroups() when daemonizing.
478be7b0 705
45b91596
PH
706TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
707 with consistent privilege compared to when running as a daemon.
478be7b0 708
c59f5781
TF
709TF/03 Note in the spec that $authenticated_id is not set for local
710 submissions from trusted users.
711
90fc3069
TF
712TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
713 Thanks to Dean Brooks <dean@iglou.com> for the patch.
714
6083aca0
TF
715TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
716 by adding some example configuration directives to the default
717 configuration file. A little bit of work is required to uncomment the
718 directives and define how usernames and passwords are checked, but
719 there is now a framework to start from.
720
765b530f
PH
721PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
722 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
723 without this. I don't know how relevant this is to other LDAP libraries.
724
4e167a8c
PH
725PH/02 Add the verb name to the "unknown ACL verb" error.
726
4608d683
PH
727PH/03 Magnus Holmgren's patch for filter_prepend_home.
728
b8dc3e4a
PH
729PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
730
5418e93b
PH
731PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
732 directory not expanded when it should be if an expanded home directory
733 was set for the address (which is overridden by the transport).
734
b4a9bda2
PH
735PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
736 libradius.
737
45b91596
PH
738PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
739 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
740 because it is too late at that time, and has no effect.
741
5547e2c5
PH
742PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
743 security issue with \' (bugzilla #107). I could not use the
744 PQescapeStringConn() function, because it needs a PGconn value as one of
745 its arguments.
746
dbcef0ea
PH
747PH/08 When testing addresses using -bt, indicate those final addresses that
748 are duplicates that would not cause an additional delivery. At least one
749 person was confused, thinking that -bt output corresponded to deliveries.
750 (Suppressing duplicates isn't a good idea as you lose the information
751 about possibly different redirections that led to the duplicates.)
752
25257489
PH
753PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
754 systems where poll() doesn't work, in particular OS X.
755
c816d124
PH
756PH/10 Added more information to debugging output for retry time not reached.
757
a9ccd69a
PH
758PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
759 operations in malware.c.
760
75fa1910
PH
761PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
762 signatures.
763
a7d7aa58
PH
764PH/13 If write_rejectlog was set false when logging was sent to syslog with
765 syslog_duplication set false, log lines that would normally be written
766 both the the main log and to the reject log were not written to syslog at
767 all.
768
42119b09
PH
769PH/14 In the default configuration, change the use of "message" in ACL warn
770 statements to "add_header".
771
41609df5
PH
772PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
773 not followed by a command (e.g. "seen endif").
774
a5bd321b
PH
775PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
776 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
777 latter.
778
e85a7ad5 779PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
780 so that it is now:
781
e85a7ad5
PH
782 ${if or { \
783 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
784 { match{$h_precedence:}{(?i)bulk|list|junk} } \
785 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
786 }{no}{yes}}
787
e85a7ad5
PH
788 The Auto-Submitted: and various List- headers are standardised, whereas I
789 don't think Precedence: ever was.
5dff5817 790
d8fe1c03
PH
791PH/18 Refactored debugging code in route_finduser() to show more information,
792 in particular, the error code if getpwnam() issues one.
793
16282d2b
PH
794PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
795 This is apparently needed in addition to the PH/07 change above to avoid
796 any possible encoding problems.
797
35d40a98
PH
798PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
799 but not after initializing Perl.
800
034d99ab
PH
801PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
802 output them only if debugging. By default they are written stderr,
803 apparently, which is not desirable.
804
6ec97b1b
PH
805PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
806 queries.
807
e22ca4ac
JJ
808JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
809 --not options
810
811JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
812
33d73e3b
PH
813PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
814 authenticated or an ident call has been made. Suppress the default
815 values for $authenticated_id and $authenticated_sender (but permit -oMai
816 and -oMas) when testing with -bh.
817
9ecb03f3
PH
818PH/24 Re-jigged the order of the tests in the default configuration so that the
819 tests for valid domains and recipients precede the DNS black list and CSA
820 tests, on the grounds that those ones are more expensive.
821
084efe8d
PH
822PH/25 Exim was not testing for a space following SMTP commands such as EHLO
823 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
824 This bug exists in every version of Exim that I still have, right back to
825 0.12.
826
366fc9f0
PH
827PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
828 However, an attempt to turn on case-sensitivity in a regex key by
829 including (?-i) didn't work because the subject string was already
830 lowercased, and the effects were non-intuitive. It turns out that a
831 one-line patch can be used to allow (?-i) to work as expected.
832
c59f5781 833
c887c79e
TF
834Exim version 4.62
835-----------------
836
837TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
838 other effects) broke the use of negated acl sub-conditions.
839
1cce3af8
PH
840PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
841 patch).
842
afb3eaaf
PH
843PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
844 "Deny" causes Exim to reject the incoming connection with a 554 error.
845 Unfortunately, if there is a major crisis, such as a disk failure,
846 tcp-wrappers gives "deny", whereas what one would like would be some
847 kind of temporary error. A kludge has been added to help with this.
848 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
849 554 error is used if errno is still zero or contains ENOENT (which occurs
850 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
851 451 error is used.
852
e173618b
PH
853PH/03 Add -lutil to the default FreeBSD LIBS setting.
854
dd16e114
PH
855PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
856 errors. Otherwise a message that provokes a temporary error (when other
857 messages do not) can cause a whole host to time out.
858
f7fd3850
PH
859PH/05 Batch deliveries by appendfile and pipe transports did not work when the
860 addresses were routed directly to files or pipes from a redirect router.
861 File deliveries just didn't batch; pipe deliveries might have suffered
862 odd errors.
863
d87df92c
PH
864PH/06 A failure to get a lock for a hints database would erroneously always say
865 "Failed to get write lock", even when it was really a read lock.
866
7e9f683d
PH
867PH/07 The appendfile transport was creating MBX lock files with a fixed mode
868 of 0600. This has been changed to use the value of the lockfile_mode
869 option (which defaults to 0600).
870
bfad5236
PH
871PH/08 Applied small patch from the Sieve maintainer.
872
01c490df
PH
873PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
874 folder from quota calculations, a direct delivery into this folder messed
875 up the contents of the maildirsize file. This was because the regex was
876 used only to exclude .Trash (or whatever) when the size of the mailbox
877 was calculated. There was no check that a delivery was happening into an
878 excluded directory. This bug has been fixed by ignoring all quota
879 processing for deliveries into excluded directories.
880
d6629cdc
PH
881PH/10 Added the maildirfolder_create_regex option to appendfile.
882
1cce3af8 883
214e2000
PH
884Exim version 4.61
885-----------------
886
887PH/01 The code for finding all the local interface addresses on a FreeBSD
888 system running IPv6 was broken. This may well have applied to all BSD
889 systems, as well as to others that have similar system calls. The broken
890 code found IPv4 interfaces correctly, but gave incorrect values for the
891 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
892 that it would not match correctly against @[] and not recognize the IPv6
893 addresses as local.
894
f9daeae0
PH
895PH/02 The ipliteral router was not recognizing addresses of the form user@
896 [ipv6:....] because it didn't know about the "ipv6:" prefix.
897
7e66e54d
PH
898PH/03 Added disable_ipv6.
899
c8ea1597
PH
900PH/04 Changed $reply_address to use the raw form of the headers instead of the
901 decoded form, because it is most often used to construct To: headers
902 lines in autoreplies, and the decoded form may well be syntactically
903 invalid. However, $reply_address has leading white space removed, and all
904 newlines turned into spaces so that the autoreply transport does not
905 grumble.
906
911f6fde
PH
907PH/05 If group was specified without a user on a router, and no group or user
908 was specified on a transport, the group from the router was ignored.
909
47ca6d6c
PH
910PH/06 Increased the number of ACL variables to 20 of each type, and arranged
911 for visible compile-time settings that can be used to change these
912 numbers, for those that want even more. Backwards compatibility with old
913 spool files has been maintained. However, going back to a previous Exim
914 release will lost any variables that are in spool files.
915
ed0e9820
PH
916PH/07 Two small changes when running in the test harness: increase delay when
917 passing a TCP/IP connection to a new process, in case the original
918 process has to generate a bounce, and remove special handling of
919 127.0.0.2 (sic), which is no longer necessary.
920
eff37e47
PH
921PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
922 be the same on different OS.
923
1921d2ea
PH
924PH/09 Moved a debug statement in filter processing to avoid a race problem when
925 testing.
926
b3f69ca8
JJ
927JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
928 whether --show-vars was specified or not
929
930JJ/02 exipick: Added support for new ACL variable spool format introduced
931 in 4.61-PH/06
932
424a1c63
PH
933PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
934 syntactically invalid From: or Reply-to: line, and a filter used this to
935 generate an autoreply, and therefore failed to obtain an address for the
936 autoreply, Exim could try to deliver to a non-existent relative file
937 name, causing unrelated and misleading errors. What now happens is that
938 it logs this as a hard delivery error, but does not attempt to create a
939 bounce message.
940
7a100415
PH
941PH/11 The exinext utility has a -C option for testing purposes, but although
942 the given file was scanned by exinext itself; it wasn't being passed on
943 when Exim was called.
944
19b9dc85
PH
945PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
946 an end-of-file indication when reading a command response.
947
309bd837
PH
948PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
949 compiled. In many other places in Exim, IPv6 addresses are always
950 recognized, so I have changed this. It also means that IPv4 domain
951 literals of the form [IPV4:n.n.n.n] are now always recognized.
952
59e82a2a
PH
953PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
954 used if the router is not running as root, for example, when verifying at
955 ACL time, or when using -bh. The debugging output from this situation was
956 non-existent - all you got was a failure to exec. I have made two
957 changes:
958
959 (a) Failures to set uid/gid, the current directory, or a process leader
960 in a subprocess such as that created by queryprogram now generate
961 suitable debugging ouput when -d is set.
962
963 (b) The queryprogram router detects when it is not running as root,
964 outputs suitable debugging information if -d is set, and then runs
965 the subprocess without attempting to change uid/gid.
966
9edc04ce
PH
967PH/15 Minor change to Makefile for building test_host (undocumented testing
968 feature).
969
1349e1e5
PH
970PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
971 additional section of a DNS packet that returns MX or SRV records.
972 Instead, it always explicitly searches for A/AAAA records. This avoids
973 major problems that occur when a DNS server includes only records of one
974 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
975 fixed another bug: if SRV records were looked up and the corresponding
976 address records were *not* found in the additional section, the port
977 values from the SRV records were lost.
978
ea49d0e1
PH
979PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
980 using the correct key (the original address) when searching the retry
981 rules in order to find which one to use for generating the retry hint.
982
064a94c9
PH
983PH/18 If quota_warn_message contains a From: header, Exim now refrains from
984 adding the default one. Similarly, if it contains a Reply-To: header, the
985 errors_reply_to option, if set, is not used.
986
727071f8
PH
987PH/19 When calculating a retry time, Exim used to measure the "time since
988 failure" by looking at the "first failed" field in the retry record. Now
989 it does not use this if it is later than than the arrival time of the
990 message. Instead it uses the arrival time. This makes for better
991 behaviour in cases where some deliveries succeed, thus re-setting the
992 "first failed" field. An example is a quota failure for a huge message
993 when small messages continue to be delivered. Without this change, the
994 "time since failure" will always be short, possible causing more frequent
995 delivery attempts for the huge message than are intended.
dd16e114 996 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 997
f78eb7c6
PH
998PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
999 $1, $2, $3) because the numerical variables can be reset during some
1000 expansion items (e.g. "match"), thereby losing the authentication data.
1001
21c28500
PH
1002PH/21 Make -bV show the size of off_t variables so that the test suite can
1003 decide whether to run tests for quotas > 2G.
1004
1005PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1006 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1007 filecount value is greater than 2G or if a quota value is greater than 2G
1008 on a system where the size of off_t is not greater than 4, a panic error
1009 is given.
1010
1688f43b
PH
1011PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1012 never match. The debug and -bh output now contains an explicit error
1013 message indicating a malformed IPv4 address or mask.
1014
1015PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1016 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1017 PH/23 above applies.
1018
9675b384
PH
1019PH/25 Do not write to syslog when running in the test harness. The only
1020 occasion when this arises is a failure to open the main or panic logs
1021 (for which there is an explicit test).
1022
6a3f1455
PH
1023PH/26 Added the /no_tell option to "control=freeze".
1024
dac79d3e
PH
1025PH/27 If a host name lookup failed very early in a connection, for example, if
1026 the IP address matched host_lookup and the reverse lookup yielded a name
1027 that did not have a forward lookup, an error message of the form "no IP
1028 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1029 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1030
5977a0b3
PH
1031PH/28 An enabling patch from MH: add new function child_open_exim2() which
1032 allows the sender and the authenticated sender to be set when
1033 submitting a message from within Exim. Since child_open_exim() is
1034 documented for local_scan(), the new function should be too.
1035
c91535f3
PH
1036PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1037 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1038 results in an empty string is now treated as unset.
1039
0d46a8c8
PH
1040PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1041
278c6e6c
PH
1042PH/31 Added sender_verify_fail logging option.
1043
2cbb4081
PH
1044PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1045 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1046 tidied the source and removed it altogether.
1047
3eef829e
PH
1048PH/33 When a queue run was abandoned because the load average was too high, a
1049 log line was always written; now it is written only if the queue_run log
1050 selector is set. In addition, the log line for abandonment now contains
1051 information about the queue run such as the pid. This is always present
1052 in "start" and "stop" lines but was omitted from the "abandon" line.
1053
1ab95fa6
PH
1054PH/34 Omit spaces between a header name and the colon in the error message that
1055 is given when verify = headers_syntax fails (if there are lots of them,
1056 the message gets confusing).
1057
230205fc
PH
1058PH/35 Change the default for dns_check_names_pattern to allow slashes within
1059 names, as there are now some PTR records that contain slashes. This check
1060 is only to protect against broken name servers that fall over on strange
1061 characters, so the fact that it applies to all lookups doesn't matter.
1062
75e0e026
PH
1063PH/36 Now that the new test suite is complete, we can remove some of the
1064 special code in Exim that was needed for the old test suite. For example,
1065 sorting DNS records because real resolvers return them in an arbitrary
1066 order. The new test suite's fake resolver always returns records in the
1067 same order.
1068
1069PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1070 bounces) except when queue_only is set, to avoid logging races between
1071 the different processes.
1072
145396a6
PH
1073PH/38 Panic-die if .include specifies a non-absolute path.
1074
3cd34f13
PH
1075PH/39 A tweak to the "H" retry rule from its user.
1076
11121d3d
JJ
1077JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1078 a label. They prevented compilation on older perls.
1079
1080JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1081 a warning to be raised on newish perls.
1082
1083JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1084 on queue. Changes to match documented behaviour of showing count of
1085 messages matching specified criteria.
1086
8def5aaf
PH
1087PH/40 Changed the default ident timeout from 30s to 5s.
1088
929ba01c
PH
1089PH/41 Added support for the use of login_cap features, on those BSD systems
1090 that have them, for controlling the resources used by pipe deliveries.
1091
2632889e
PH
1092PH/42 The content-scanning code uses fopen() to create files in which to put
1093 message data. Previously it was not paying any attention to the mode of
1094 the files. Exim runs with umask(0) because the rest of the code creates
1095 files with open(), and sets the required mode explicitly. Thus, these
1096 files were ending up world-writeable. This was not a big issue, because,
1097 being within the spool directory, they were not world-accessible. I have
1098 created a function called modefopen, which takes an additional mode
1099 argument. It sets umask(777), creates the file, chmods it to the required
1100 mode, then resets the umask. All the relevant calls to fopen() in the
1101 content scanning code have been changed to use this function.
1102
944a9c55
PH
1103PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1104 to 24 hours. This avoids potential overflow problems when processing G
1105 and H retry rules. I suspect nobody ever tinkers with this value.
1106
4a23603b
PH
1107PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1108
4730f942
PH
1109PH/45 When the plaintext authenticator is running as a client, the server's
1110 challenges are checked to ensure they are valid base64 strings. By
1111 default, the authentication attempt is cancelled if an invalid string is
1112 received. Setting client_ignore_invalid_base64 true ignores these errors.
1113 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1114 they are received. Thus, the responses can be made to depend on the
1115 challenges. If an invalid string is ignored, an empty string is placed in
1116 the variable.
1117
30dba1e6
PH
1118PH/46 Messages that are created by the autoreply transport now contains a
1119 References: header, in accordance with RFCs 2822 and 3834.
1120
382afc6b
PH
1121PH/47 Added authenticated_sender_force to the smtp transport.
1122
a86229cf
PH
1123PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1124
50c99ba6
PH
1125PH/49 Installed latest patch from the Sieve maintainer.
1126
d35e429d
PH
1127PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1128 was also set, the appendfile transport was unnecessarily scanning a
1129 directory of message files (e.g. for maildir delivery) to find the count
1130 of files (along with the size), even though it did not need this
1131 information. It now does the scan only if it needs to find either the
1132 size of the count of files.
1133
f90d018c
PH
1134PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1135
75def545
PH
1136PH/52 Two bugs concerned with error handling when the smtp transport is
1137 used in LMTP mode:
1138
1139 (i) Exim was not creating retry information for temporary errors given
1140 for individual recipients after the DATA command when the smtp transport
1141 was used in LMTP mode. This meant that they could be retried too
1142 frequently, and not timed out correctly.
1143
1144 (ii) Exim was setting the flag that allows error details to be returned
1145 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1146 recipients that were returned after the DATA command.
1147
1148PH/53 This is related to PH/52, but is more general: for any failing address,
1149 when detailed error information was permitted to be returned to the
1150 sender, but the error was temporary, then after the final timeout, only
1151 "retry timeout exceeded" was returned. Now it returns the full error as
1152 well as "retry timeout exceeded".
1153
c46782ef
PH
1154PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1155 do this, and (what is worse) MTAs that accept it.
1156
71fafd95
PH
1157PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1158 will now be deprecated.
1159
2c5db4fd
PH
1160PH/56 New os.c-cygwin from the Cygwin maintainer.
1161
9cf6b11a
JJ
1162JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1163 formats (previously only available in exim formats via -bpr, -bpru,
1164 and -bpra. Now also available in native and exiqgrep formats)
1165
1166JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1167 with very large, slow to parse queues
1168
1169JJ/08 exipick: added ! as generic prefix to negate any criteria format
1170
1171JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1172
898d150f
PH
1173PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1174 responses to authentication challenges, though it was showing the
1175 challenges; (ii) I've removed the CR characters from the debug output for
1176 SMTP output lines.
1177
46218253
PH
1178PH/58 Allow for the insertion of a newline as well as a space when a string
1179 is turned into more than one encoded-word during RFC 2047 encoding. The
1180 Sieve code now uses this.
1181
e97957bc
PH
1182PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1183 data_4xx, lost_connection, tls_required.
1184
81e509d7
PH
1185PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1186 message was being sent as an SMTP response.
1187
3d240ff7
PH
1188PH/61 Add -l and -k options to exicyclog.
1189
b37c4101
PH
1190PH/62 When verifying, if an address was redirected to one new address, so that
1191 verification continued, and the new address failed or deferred after
1192 having set something in $address_data, the value of $address_data was not
1193 passed back to the ACL. This was different to the case when no
1194 redirection occurred. The value is now passed back in both cases.
1195
79378e0f
PH
1196PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1197 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1198 use login_cap.h, so on its own it isn't the distinguishing feature. The
1199 new name refers directly to the setclassresources() function.
1200
e49c7bb4
PH
1201PH/65 Added configuration files for NetBSD3.
1202
d114ec46
PH
1203PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1204
f3d7df6c
PH
1205PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1206 is preferred over IPv4.
1207
715ab376
PH
1208PH/68 The bounce_return_message and bounce_return_body options were not being
1209 honoured for bounces generated during the reception of non-SMTP messages.
1210 In particular, this applied to messages rejected by the ACL. This bug has
1211 been fixed. However, if bounce_return_message is true and bounce_return_
1212 body is false, the headers that are returned for a non-SMTP message
1213 include only those that have been read before the error was detected.
1214 (In the case of an ACL rejection, they have all been read.)
1215
6b31b150
PH
1216PH/69 The HTML version of the specification is now built in a directory called
1217 spec_html instead of spec.html, because the latter looks like a path with
1218 a MIME-type, and this confuses some software.
1219
1220PH/70 Catch two compiler warnings in sieve.c.
1221
d515a917
PH
1222PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1223 function verify_get_ident() calls ip_connect() to connect a socket, but
1224 if the "connect()" function timed out, ip_connect() used to close the
1225 socket. However, verify_get_ident() also closes the socket later, and in
1226 between Exim writes to the log, which may get opened at this point. When
1227 the socket was closed in ip_connect(), the log could get the same file
1228 descriptor number as the socket. This naturally causes chaos. The fix is
1229 not to close the socket in ip_connect(); the socket should be closed by
1230 the function that creates it. There was only one place in the code where
1231 this was missing, in the iplookup router, which I don't think anybody now
1232 uses, but I've fixed it anyway.
1233
9b8fadde
PH
1234PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1235 well as to direct DNS lookups. Otherwise the handling of names in host
1236 lists is inconsistent and therefore confusing.
1237
214e2000 1238
5de37277
PH
1239Exim version 4.60
1240-----------------
1241
cc38ddbf
PH
1242PH/01 Two changes to the default runtime configuration:
1243
1244 (1) Move the checks for relay_from_hosts and authenticated clients from
1245 after to before the (commented out) DNS black list checks.
1246
1247 (2) Add control=submission to the relay_from_hosts and authenticated
1248 clients checks, on the grounds that messages accepted by these
1249 statements are most likely to be submissions.
5de37277 1250
72fdd6ae
PH
1251PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1252
1253 (1) Generate an error if the third argument for the ${prvs expansion is
1254 not a single digit.
1255
1256 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1257 string.
1258
1259 (3) Reset the variables that are obtained from the first argument of
1260 ${prvscheck and used in the second argument before leaving the code,
1261 because their memory is reclaimed, so using them afterwards may do
1262 silly things.
1263
1264 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1265 one (it's much easier than Tom thought :-).
1266
1267 (5) Because of (4), we can now allow for the use of $prvscheck_result
1268 inside the third argument.
cb9328de 1269
cb741023
PH
1270PH/03 For some reason, the default setting of PATH when running a command from
1271 a pipe transport was just "/usr/bin". I have changed it to
1272 "/bin:/usr/bin".
1273
f174f16e
PH
1274PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1275 anything to be listed in the output from -bV.
b2f5a032 1276
c25242d7
PH
1277PH/05 When a filter generated an autoreply, the entire To: header line was
1278 quoted in the delivery log line, like this:
1279
1280 => >A.N.Other <ano@some.domain> <original@ddress> ...
1281
1282 This has been changed so that it extracts the operative address. There
1283 may be more than one such address. If so, they are comma-separated, like
1284 this:
1285
1286 => >ano@some.domain,ona@other.domain <original@ddress> ...
1287
82c19f95
PH
1288PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1289 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1290 not being looked up in the rDNS to get a host name, Exim was showing the
1291 IP address twice in Received: lines, even though the IP addresses were
1292 identical. For example:
1293
1294 Received: from [1.2.3.4] (helo=[1.2.3.4])
1295
1296 However, if the real host name was known, it was omitting the HELO data
1297 if it matched the actual IP address. This has been tidied up so that it
1298 doesn't show the same IP address twice.
1299
d7ffbc12
PH
1300PH/07 When both +timestamp and +memory debugging was on, the value given by
1301 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1302 called by the debug printing, thereby overwriting the timestamp buffer.
1303 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1304
9f526266
PH
1305PH/08 When the original message was included in an autoreply transport, it
1306 always said "this is a copy of the message, including all the headers",
1307 even if body_only or headers_only was set. It now gives an appropriate
1308 message.
1309
87fcc8b9
PH
1310PH/09 Applied a patch from the Sieve maintainer which:
1311
1312 o fixes some comments
1313 o adds the (disabled) notify extension core
1314 o adds some debug output for the result of if/elsif tests
1315 o points to the current vacation draft in the documentation
1316 and documents the missing references header update
1317
1318 and most important:
1319
1320 o fixes a bug in processing the envelope test (when testing
1321 multiple envelope elements, the last element determinted the
1322 result)
1323
456682f5
PH
1324PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1325 Electronic Mail") by including:
1326
1327 Auto-submitted: auto-generated
1328
1329 in the messages that it generates (bounce messages and others, such as
1330 warnings). In the case of bounce messages for non-SMTP mesages, there was
1331 also a typo: it was using "Auto_submitted" (underscore instead of
1332 hyphen). Since every message generated by Exim is necessarily in response
1333 to another message, thes have all been changed to:
1334
1335 Auto-Submitted: auto-replied
1336
1337 in accordance with these statements in the RFC:
1338
1339 The auto-replied keyword:
1340
1341 - SHOULD be used on messages sent in direct response to another
1342 message by an automatic process,
1343
1344 - MUST NOT be used on manually-generated messages,
1345
1346 - MAY be used on Delivery Status Notifications (DSNs) and Message
1347 Disposition Notifications (MDNs),
1348
1349 - MUST NOT be used on messages generated by automatic or periodic
1350 processes, except for messages which are automatic responses to
1351 other messages.
1352
3e46c1aa
PH
1353PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1354 to the default Received: header definition.
456682f5 1355
49826d12
PH
1356PH/12 Added log selector acl_warn_skipped (default on).
1357
eba0c039
PH
1358PH/13 After a successful wildlsearch lookup, discard the values of numeric
1359 variables because (a) they are in the wrong storage pool and (b) even if
1360 they were copied, it wouldn't work properly because of the caching.
1361
a0d6ba8a
PH
1362PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1363 checking when decoding. Apparently there are clients that generate
1364 overlong encoded strings. Why am I not surprised?
1365
f0917727
PH
1366PH/15 If the first argument of "${if match_address" was not empty, but did not
1367 contain an "@" character, Exim crashed. Now it writes a panic log message
1368 and treats the condition as false.
1369
096fee00
PH
1370PH/16 In autoreply, treat an empty string for "once" the same as unset.
1371
024bd3c2
PH
1372PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1373 extension "envelope-auth". The code is finished and in agreement with
1374 other implementations, but there is no documentation so far and in fact,
1375 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1376 not changing the active code.
1377
1378 Print executed "if" and "elsif" statements when debugging is used. This
1379 helps a great deal to understand what a filter does.
1380
1381 Document more things not specified clearly in RFC3028. I had all this
1382 sorted out, when out of a sudden new issues came to my mind. Oops."
1383
df199fec
PH
1384PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1385 (Bugzilla #53).
1386
d27f1df3
PH
1387PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1388 canonical form (as documented). However, after a host name lookup from
1389 the IP address, check_host() was doing a simple string comparison with
1390 addresses acquired from the DNS when checking that the found name did
1391 have the original IP as one of its addresses. Since any found IPv6
1392 addresses are likely to be in abbreviated form, the comparison could
1393 fail. Luckily, there already exists a function for doing the comparison
1394 by converting both addresses to binary, so now that is used instead of
1395 the text comparison.
1396
96776534
PH
1397PH/20 There was another similar case to PH/19, when a complete host name was
1398 given in a host list; looking up its IP address could give an abbreviated
1399 form, whereas the current host's name might or might not be abbreviated.
1400 The same fix has been applied.
1401
5de37277 1402
9a799bc0
PH
1403Exim version 4.54
1404-----------------
1405
1406PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1407 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1408 It now does.
1409
99a4b039
PH
1410PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1411 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1412
1413PH/03 Typo: missing ".o" in src/pcre/Makefile.
1414
4b233853
PH
1415PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1416 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1417 Also, for "Auto-Submitted", treat anything other than "no" as
1418 non-personal, in accordance with RFC 3834. (Previously it treated
1419 anything starting "auto-" as non-personal.)
1420
8857ccfd
PH
1421TF/01 The control=submission/name=... option had a problem with syntax
1422 errors if the name included a slash character. The /name= option
1423 now slurps the rest of the string, so it can include any characters
1424 but it must come last in the list of options (after /sender_retain
1425 or /domain=).
1426
433a2980
PH
1427PH/05 Some modifications to the interface to the fake nameserver for the new
1428 testing suite.
1429
3e46c1aa 1430
9a799bc0 1431
e3a311ba
TK
1432Exim version 4.53
1433-----------------
1434
1435TK/01 Added the "success_on_redirect" address verification option. See
1436 NewStuff for rationale and an example.
1437
13b685f9
PH
1438PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1439
395ff96d
PH
1440PH/02 Patch to exigrep to allow it to work on syslog lines.
1441
5b68f6e4
PH
1442PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1443 fread() to skip over the body file's header line, because in Cygwin the
1444 header line is locked and is inaccessible.
1445
1ab52c69
PH
1446PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1447 co-exist for some time) to make it clear that it is the Exim ID that is
1448 referenced, not the Message-ID: header line.
1449
b07e6aa3
PH
1450PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1451 string_format() function, because snprintf() does not exist on all
1452 operating systems.
1453
254e032f
PH
1454PH/06 The use of forbid_filter_existstest now also locks out the use of the
1455 ${stat: expansion item.
1456
3af76a81
PH
1457PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1458 protocol synchronization error", to keep the pedants happy.
1459
2548ba04
PH
1460PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1461 well as for IRIX systems, when gcc is being used. See the host.c source
1462 file for comments.
1463
b6c6011d
PH
1464PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1465
cf39cf57
PH
1466PH/10 Named domain lists were not working if used in a queue_smtp_domains
1467 setting.
1468
f1513293
PH
1469PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1470 transport and to the smtp transport in LMTP mode.
1471
727549a4
PH
1472TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1473
af46795e
PH
1474PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1475 run a filter in a subprocess. This could lead to confusion in subsequent
1476 lookups in the parent process. There should also be a search_tidyup() at
1477 the end of the subprocess.
1478
d7b47fd0
PH
1479PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1480 only if the host matched helo_try_verify_hosts, which caused the
1481 verification to occur when the EHLO/HELO command was issued. The ACL just
1482 tested the remembered result. Now, if a previous verification attempt has
1483 not happened, "verify = helo" does it there and then.
1484
ee744174
JJ
1485JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1486
b582ab87
PH
1487TK/03 Fix log output including CR from clamd.
1488
41a13e0a
PH
1489PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1490 exist provoked a memory error which could cause a segfault.
1491
f625cc5a
PH
1492PH/15 Installed PCRE 6.2
1493
1494PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1495
21f7af35
PH
1496PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1497 of the problem. Specifically, suggested +O2 rather than +O1 for the
1498 HP-UX compiler.
1499
31480e42
PH
1500PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1501
2d280592
PH
1502PH/20 If a delivery was routed to a non-standard port by means of an SRV
1503 record, the port was not correctly logged when the outgoing_port log
1504 selector was set (it logged the transort's default port).
1505
7cd1141b
PH
1506PH/21 Added support for host-specific ports to manualroute, queryprogram,
1507 fallback_hosts, and "hosts" in the smtp transport.
1508
1509PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1510 host errors such as "Connection refused".
1511
750af86e
PH
1512PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1513 authentication with radiusclient 0.4.9:
1514
1515 - Error returned from rc_read_config was caught wrongly
1516 - Username/password not passed on to radius server due to wrong length.
1517
1518 The presumption is that some radiusclient API changes for 4.51/PH/17
1519 were not taken care of correctly. The code is still untested by me (my
1520 Linux distribution still has 0.3.2 of radiusclient), but it was
1521 contributed by a Radius user.
1522
1523PH/24 When doing a callout, the value of $domain wasn't set correctly when
1524 expanding the "port" option of the smtp transport.
1525
4304270b
TK
1526TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1527 while reading a MIME header. Thanks to Tom Hughes for a patch.
1528
750af86e
PH
1529PH/24 Include config.h inside local_scan.h so that configuration settings are
1530 available.
1531
64ffc24f
PH
1532PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1533 that in an ACL for RCPT (for example), you can examine exactly what was
1534 received.
1535
5dd9625b
PH
1536PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1537 commands, but it was not correctly comparing the address with the actual
1538 client host address. Thus, it would show the EHLO address in Received:
1539 header lines when this was not necessary.
1540
5591031b
PH
1541PH/27 Added the % operator to ${eval:}.
1542
ba18e66a
PH
1543PH/28 Exim tries to create and chdir to its spool directory when it starts;
1544 it should be ignoring failures (because with -C, for example, it has lost
1545 privilege). It wasn't ignoring creation failures other than "already
1546 exists".
1547
9cec981f
PH
1548PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1549 -bV or -d is used.
1550
aa2b5c79
PH
1551PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1552 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1553 too many continuations, the temporary file was not being removed, and the
1554 return code was incorrect.
aa2b5c79 1555
48a53b7f
PH
1556PH/31 Missing "BOOL" in function definition in filtertest.c.
1557
1c59d63b
PH
1558PH/32 Applied Sieve patches from the maintainer.
1559
671012da
TK
1560TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1561
1509d3a8
PH
1562PH/33 Added "verify = not_blind".
1563
1564PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1565 Local/Makefile (with some defaults set). These are used in built scripts
1566 such as exicyclog, but they have never been used in the exim_install
1567 script (though there are many overriding facilities there). I have
1568 arranged that the exim_install script now takes note of these two
1569 settings.
1570
1571PH/35 Installed configuration files for Dragonfly.
1572
2fe1a124
PH
1573PH/36 When a locally submitted message by a trusted user did not contain a
1574 From: header, and the sender address was obtained from -f or from an SMTP
1575 MAIL command, and the trusted user did not use -F to supply a sender
1576 name, $originator_name was incorrectly used when constructing a From:
1577 header. Furthermore, $originator_name was used for submission mode
1578 messages from external hosts without From: headers in a similar way,
1579 which is clearly wrong.
1580
8800895a
PH
1581PH/37 Added control=suppress_local_fixups.
1582
ccfdb010
PH
1583PH/38 When log_selector = +received_sender was set, and the addition of the
1584 sender made the log line's construction buffer exactly full, or one byte
1585 less than full, an overflow happened when the terminating "\n" was
1586 subsequently added.
1587
1130bfb0
PH
1588PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1589 when the result of a list match is failure because a DNS lookup failed.
1590
ebcb507f
PH
1591PH/40 RM_COMMAND is now used in the building process.
1592
c35e155c
PH
1593PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1594 the "build-* directories that it finds.
1595
95d1f782
PH
1596PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1597 address in a domain literal was a prefix of an interface address.
1598
fd6de02e
PH
1599PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1600 when verifying a sender address, unless rewrite_headers is false.
1601
58de37c5
PH
1602PH/44 Wrote a long comment about why errors_to addresses are verified as
1603 recipients, not senders.
1604
261cf466
TF
1605TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1606 the ratelimit ACL was added.
1607
3ee512ff
PH
1608PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1609
e08c430f
PH
1610PH/46 Added extra information about PostgreSQL errors to the error string.
1611
bef5a11f
PH
1612PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1613 avoiding the need to install special zones in a real server. This is
1614 backwards compatible; if it can't find the fake resolver, it drops back.
1615 Thus, both old and new test suites can be run.
1616
7546de58
TF
1617TF/02 Added util/ratelimit.pl
1618
e5d5a95f
TF
1619TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1620 clock is set back in time.
1621
2e88a017
TF
1622TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1623 Candler <B.Candler@pobox.com>.
1624
a5f65aa4
TF
1625TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1626 OK for addresses that are the result of redirections.
1627
e7726cbf
PH
1628PH/48 A number of further additions for the benefit of the new test suite,
1629 including a fake gethostbyname() that interfaces to the fake DNS resolver
1630 (see PH/47 above).
1631
a7fdad5b
TF
1632TF/06 The fix for widen_domains has also been applied to qualify_single and
1633 search_parents which are the other dnslookup options that can cause
1634 header rewrites.
1635
6af56900
PH
1636PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1637 type ("H").
1638
0925ede6
PH
1639PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1640
66afa403
TF
1641TF/07 Exim produced the error message "an SRV record indicated no SMTP
1642 service" if it encountered an MX record with an empty target hostname.
1643 The message is now "an MX or SRV record indicated no SMTP service".
1644
0154e85a
TF
1645TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1646 if the DNS of the sending site is misconfigured. This is quite a
1647 common situation. This change restores the behaviour of treating a
1648 helo verification defer as a failure.
1649
16f12c76
PH
1650PH/51 If self=fail was set on a router, the bounce message did not include the
1651 actual error message.
1652
bbe902f0 1653
e5a9dba6
PH
1654Exim version 4.52
1655-----------------
1656
1657TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1658
22c3b60b
PH
1659PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1660 command itself ended in error, the underlying message about the transport
1661 filter timeout was being overwritten with the pipe command error. Now the
1662 underlying error message should be appended to the second error message.
1663
06a9b4b5
PH
1664TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1665
c1ac6996
PH
1666PH/02 Reduce the amount of output that "make" produces by default. Full output
1667 can still be requested.
1668
9c7a242c
PH
1669PH/03 The warning log line about a condition test deferring for a "warn" verb
1670 was being output only once per connection, rather than after each
1671 occurrence (because it was using the same function as for successful
1672 "warn" verbs). This seems wrong, so I have changed it.
1673
87ba3f5f
PH
1674TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1675 it should not have, which might have caused a crash in the right
1676 circumstances, but probably never did.
1677
1678PH/04 Installed a modified version of Tony Finch's patch to make submission
1679 mode fix the return path as well as the Sender: header line, and to
1680 add a /name= option so that you can make the user's friendly name appear
1681 in the header line.
1682
29aba418
TF
1683TF/03 Added the control = fakedefer ACL modifier.
1684
fe0dab11
TF
1685TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1686 Mark Lowes for thorough testing.
870f6ba8 1687
11d337a4
TK
1688TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1689
1690TK/03 Merged latest SRS patch from Miles Wilton.
1691
415c8f3b
PH
1692PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1693 with the definition in sysexits.h (which is #included earlier).
1694 Fortunately, Exim does not actually use EX_OK. The code used to try to
1695 preserve the sysexits.h value, by assumimg that macro definitions were
1696 scanned for macro replacements. I have been disabused of this notion,
1697 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1698
958541e9
PH
1699PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1700 in the smtp transport. When a block could not be written in a single
1701 write() function, the timeout was being re-applied to each part-write.
1702 This seems wrong - if the receiver was accepting one byte at a time it
1703 would take for ever. The timeout is now adjusted when this happens. It
1704 doesn't have to be particularly precise.
1705
c206415f
TK
1706TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1707 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1708
2a4be8f9
PH
1709PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1710 without a domain if the check to <postmaster@domain> fails.
1711
1cba11c5
SC
1712SC/01 Eximstats: added -xls and the ability to specify output files
1713 (patch written by Frank Heydlauf).
1714
1715SC/02 Eximstats: use FileHandles for outputing results.
1716
1717SC/03 Eximstats: allow any combination of xls, txt, and html output.
1718
1719SC/04 Eximstats: fixed display of large numbers with -nvr option
1720
1721SC/05 Eximstats: fixed merging of reports with empty tables.
1722
1723SC/06 Eximstats: added the -include_original_destination flag
1724
1725SC/07 Eximstats: removed tabs and trailing whitespace.
1726
1005d00e
TK
1727TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1728
1729TK/06 MBOX spool code: Add real "From " MBOX separator line
1730 so the .eml file is really in mbox format (even though
1731 most programs do not really care). Patch from Alex Miller.
1732
1733TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1734 The latter is generated from $received_to and is only set if the
1735 message has one envelope recipient. SA can use these headers,
1736 obviously out-of-the-box. Patch from Alex Miller.
1737
9b4768fa
PH
1738PH/08 The ${def test on a variable was returning false if the variable's
1739 value was "0", contrary to what the specification has always said!
1740 The result should be true unless the variable is empty.
1741
1742PH/09 The syntax error of a character other than { following "${if
1743 def:variable_name" (after optional whitespace) was not being diagnosed.
1744 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1745 accidental colon was present, for example, could give incorrect results.
1746
0d7eb84a
PH
1747PH/10 Tidied the code in a number of places where the st_size field of a stat()
1748 result is used (not including appendfile, where other changes are about
1749 to be made).
1750
1751PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1752 This involved changing a lot of size variables from int to off_t. It
1753 should work with maildirs and everything.
1754
40727bee
TK
1755TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1756 spamd dying while we are connected to it.
1757
554d2369
TF
1758TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1759 <jgh@wizmail.org>
1760
1f922db1
PH
1761PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1762 function for BDB 4.3.
1763
ef213c3b
PH
1764PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1765
8ac170f3
PH
1766PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1767 the sources for PCRE have been re-arranged and more files are now
1768 involved.
1769
b1c749bb
PH
1770PH/15 The code I had for printing potentially long long variables in PH/11
1771 above was not the best (it lost precision). The length of off_t variables
1772 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1773 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1774 to be "long long int" or "long int". This is needed for the internal
1775 formatting function string_vformat().
b1c749bb 1776
4aac9b49
PH
1777PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1778 the configuration file to be ":syslog", then the script "guesses" where
1779 the logs files are, rather than using the compiled in default. In our
1780 case the guess is not the same as the compiled default, so the script
1781 suddenly stopped working when I started to use syslog. The patch checks
1782 to see if log_file_path is "". If so, it attempts to read it from exim
1783 with no configuration file to get the compiled in version, before it
1784 falls back to the previous guessing code."
1785
294520c8
TK
1786TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1787 implementing BATV in an Exim configuration. See NewStuff for the gory
1788 details.
1789
5bd022fe
PH
1790PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1791 Makefile that are specific to HP-UX.
1792
90e9ce59
PH
1793PH/18 If the "use_postmaster" option was set for a recipient callout together
1794 with the "random" option, the postmaster address was used as the MAIL
1795 FROM address for the random test, but not for the subsequent recipient
1796 test. It is now used for both.
1797
5ea81592
PH
1798PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1799 patch removes a few documentation additions to RFC 3028, because the
1800 latest draft now contains them. It adds the new en;ascii-case comparator
1801 and a new error check for 8bit text in MIME parts. Comparator and
1802 require names are now matched exactly. I enabled the subaddress
1803 extension, but it is not well tested yet (read: it works for me)."
1804
c6c2dc1d
PH
1805PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1806 rework some of the code of TK/09 above to avoid the hardwired use of
1807 "%lld" and "long long". Replaced the call to snprintf() with a call to
1808 string_vformat().
1809
fffffe4c
PH
1810PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1811 records point to non-existent hosts", "retry timeout exceeded", and
1812 "retry time not reached for any host after a long failure period".
ca02eafb 1813
9a26b6b2
PH
1814PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1815 experimental DomainKeys support:
1816
1817 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1818 (2) On an error such as an illegally used "control", the wrong name for
1819 the control was given.
1820
1821 These problems did NOT occur unless DomainKeys support was compiled.
1822
4aee0225
PH
1823PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1824
32d668a5
PH
1825PH/24 Added ${if match_ip condition.
1826
8187c3f3
PH
1827PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1828 databases so that it will be absolutely obvious if a crash occurs in the
1829 DB library. This is a regular occurrence (often caused by mis-matched
1830 db.h files).
1831
ff790e47 1832PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1833 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1834 picked up on a user's system that detects such things. There doesn't seem
1835 to be a gcc warning option for this - only an attribute that has to be
1836 put on the function's prototype. It seems that in Fedora Core 4 they have
1837 set this on a number of new functions. No doubt there will be more in due
1838 course.
ff790e47 1839
5417f6d1
PH
1840PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1841 specify a transport. However, if an address that was verified by such a
1842 router was the subject of a callout, Exim crashed because it tried to
1843 read the rcpt_include_affixes from the non-existent transport. Now it
1844 just assumes that the setting of that option is false. This bug was
1845 introduced by 4.51/PH/31.
1846
59cf8544
PH
1847PH/28 Changed -d+all to exclude +memory, because that information is very
1848 rarely of interest, but it makes the output a lot bigger. People tend to
1849 do -d+all out of habit.
1850
e7ad8a65
PH
1851PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1852 code in os-type was giving problems when libc.so lives in lib64, like on
1853 x86_64 Fedora Core.
1854
ade42478
PH
1855PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1856 aren't the modern standard, and it seems that some systems' include files
1857 don't always have them. Exim was already checking for some of the newer
1858 ones like T_AAAA, and defining it itself. I've added checks for all the
1859 record types that Exim uses.
1860
182ad5cf
PH
1861PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1862 not automatically generating a new one, as it is supposed to. This
1863 prevented TLS from working. If the file did exist, but contained invalid
1864 data, a new version was generated, as expected. It was only the case of a
1865 non-existent file that was broken.
1866
b0d9fc80
TK
1867TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1868 with a change in libdomainkeys > 0.64.
1869
1870TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1871 from DNS. If the selector record carries the flag, it now has
1872 precedence over the domain-wide flag.
1873
1874TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1875
47c7a64a
PH
1876PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1877 the use of a port name that isn't defined in /etc/services) occurred, the
1878 message was deferred as in a normal delivery, and thus remained on the
1879 spool, instead of being failed because of the mua_wrapper setting. This
1880 is now fixed, and I tidied up some of the mua_wrapper messages at the
1881 same time.
1882
a388bce4
SC
1883SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1884 the messages in a hash of arrays rather than using individual hashes.
1885 This is a bit cleaner and results in dramatic memory savings, albeit
1886 at a slight CPU cost.
1887
1888SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1889 as requested by Marc Sherman.
1890
1891SC/10 Eximstats: added histograms for user specified patterns as requested
1892 by Marc Sherman.
1893
0793e4ed
SC
1894SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1895
c58b88df
PH
1896PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1897 fopen() in the content-scanning modules that did not already have it.
1898
e7ad8a65 1899
7982096b
PH
1900Exim version 4.51
1901-----------------
1902
1a46a8c5
PH
1903TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1904 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1905
2f079f46 1906TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1907
1908TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1909
1910PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1911 to test Sieve filters that use "vacation".
1912
1913PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1914 that changes the way the GnuTLS parameters are stored in the cache file.
1915 The new format can be generated externally. For backward compatibility,
1916 if the data in the cache doesn't make sense, Exim assumes it has read an
1917 old-format file, and it generates new data and writes a new file. This
1918 means that you can't go back to an older release without removing the
1919 file.
1920
1921PH/03 A redirect router that has both "unseen" and "one_time" set does not
1922 work if there are any delivery delays because "one_time" forces the
1923 parent to be marked "delivered", so its unseen clone is never tried
1924 again. For this reason, Exim now forbids the simultaneous setting of
1925 these two options.
1926
1927PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1928 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1929 entry if you want to know the details. The fix, however, neglected to
1930 consider the case when local delivery batching is involved. The test for
1931 "previously delivered" was not happening when checking to see if an
1932 address could be batched with a previous (undelivered) one; under
1933 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1934 address.
1a46a8c5
PH
1935
1936PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1937 in its include files, and this causes problems building Exim.
1938
1939PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1940 header_syntax) but Exim was just ignoring anything given after a slash.
1941 In particular, this caused confusion with an attempt to use "verify =
1942 reverse_host_lookup/defer_ok". An error is now given when options are
1943 supplied for verify items that do not have them. (Maybe reverse_host_
1944 lookup should have a defer_ok option, but that's a different point.)
1945
1946PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1947 defined by RFC 821) to 2048, because there were problems with some AUTH
1948 commands, and RFC 1869 says the size should be increased for extended
1949 SMTP commands that take arguments.
1950
1951PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1952 Finch).
1953
1954PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1955 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1956
49c2d5ea
PH
1957PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1958 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1959 whatever). Otherwise the password may appear in the log. Following change
1960 PH/42 below, there is no longer a chance of it appearing in a bounce
1961 message.
49c2d5ea 1962
bf759a8b
PH
1963PH/11 Installed exipick version 20050225.0 from John Jetmore.
1964
83364d30
PH
1965PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1966 of its addresses was ever tried. (Bugzilla bug #2.)
1967
7999bbd7
PH
1968PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1969 the result incorrectly in the debug output. (It correctly added a newline
1970 to what was transported.)
1971
7dbf77c9
PH
1972TF/01 Added $received_time.
1973
74e0617f
PH
1974PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1975 commented out examples of how to interface to a virus scanner and to
1976 SpamAssassin. Also added commented examples of av_scanner and
1977 spamd_address settings.
1978
2f079f46
PH
1979PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1980 and controls are allowed in which ACLs. There were a couple of minor
1981 errors. Some of the entries in the conditions table (which is a table of
1982 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1983 negation of where the condition IS allowed.
1984
8c841523
PH
1985PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
1986
7766a4f0
PH
1987PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
1988 header file does not have a version number, so I've had to invent a new
1989 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
1990 API. The code is untested by me (my Linux distribution still has 0.3.2 of
1991 radiusclient), but it was contributed by a Radius user.
1992
8b417f2c
PH
1993PH/18 Installed Lars Mainka's patch for the support of CRL collections in
1994 files or directories, for OpenSSL.
1995
901f42cb
PH
1996PH/19 When an Exim process that is running as root has to create an Exim log
1997 file, it does so in a subprocess that runs as exim:exim so as to get the
1998 ownership right at creation (otherwise, other Exim processes might see
1999 the file with the wrong ownership). There was no test for failure of this
2000 fork() call, which would lead to the process getting stuck as it waited
2001 for a non-existent subprocess. Forks do occasionally fail when resources
2002 run out. I reviewed all the other calls to fork(); they all seem to check
2003 for failure.
2004
f9b9210e
PH
2005PH/20 When checking for unexpected SMTP input at connect time (before writing
2006 the banner), Exim was not dealing correctly with a non-positive return
2007 from the read() function. If the client had disconnected by this time,
2008 the result was a log entry for a synchronization error with an empty
2009 string after "input=" when read() returned zero. If read() returned -1
2010 (an event I could not check), uninitialized data bytes were printed.
2011 There were reports of junk text (parts of files, etc) appearing after
2012 "input=".
2013
54cdb463
PH
2014PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2015
cf00dad6
PH
2016PH/22 Added support for macro redefinition, and (re)definition in between
2017 driver and ACL definitions.
2018
acb1b346
PH
2019PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2020 forgetting to use the resulting value; it was using the unexpanded value.
2021
c5ddb310
PH
2022PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2023 hadn't been configured. The fix is from Juergen Kreileder, who
2024 understands it better than I do:
2025
2026 "Here's what I see happening with three configured cyrus_sasl
2027 authenticators configured (plain, login, cram-md5):
2028
2029 On startup auth_cyrus_sasl_init() gets called for each of these.
2030 This means three calls to sasl_listmech() without a specified mech_list.
2031 => SASL tests which mechs of all available mechs actually work
2032 => three warnings about OTP not working
2033 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2034
2035 With the patch, sasl_listmech() also gets called three times. But now
2036 SASL's mech_list option is set to the server_mech specified in the the
2037 authenticator. Or in other words, the answer from sasl_listmech()
2038 gets limited to just the mech you're testing for (which is different
2039 for each call.)
2040 => the return list contains just 'plain' or 'login', 'cram-md5' or
2041 nothing depending on the value of ob->server_mech.
2042
2043 I've just tested the patch: Authentication still works fine,
2044 unavailable mechs specified in the exim configuration are still
2045 caught, and the auth.log warnings about OTP are gone."
2046
31619da6
PH
2047PH/25 When debugging is enabled, the contents of the command line are added
2048 to the debugging output, even when log_selector=+arguments is not
2049 specified.
2050
bebaf0fc
PH
2051PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2052 answer is "GNU", and only if the return is "GNU/something" is the answer
2053 "Linux".
2054
475fe28a
PH
2055PH/27 $acl_verify_message is now set immediately after the failure of a
2056 verification in an ACL, and so is available in subsequent modifiers. In
2057 particular, the message can be preserved by coding like this:
2058
2059 warn !verify = sender
2060 set acl_m0 = $acl_verify_message
2061
2062 Previously, $acl_verify_message was set only while expanding "message"
2063 and "log_message" when a very denied access.
2064
7e8bec7a
PH
2065PH/28 Modified OS/os.c-Linux with
2066
2067 -#ifndef OS_LOAD_AVERAGE
2068 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2069
2070 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2071 nomenclature these days.)
2072
e4a89c47
PH
2073PH/29 Installed patch from the Sieve maintainer that adds the options
2074 sieve_useraddress and sieve_subaddress to the redirect router.
2075
5ca2a9a1
PH
2076PH/30 In these circumstances:
2077 . Two addresses routed to the same list of hosts;
2078 . First host does not offer TLS;
2079 . First host accepts first address;
2080 . First host gives temporary error to second address;
2081 . Second host offers TLS and a TLS session is established;
2082 . Second host accepts second address.
2083 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2084 and peerdn, if requested) that were in fact used only for the second
2085 address.
7e8bec7a 2086
c688b954
PH
2087PH/31 When doing a callout as part of verifying an address, Exim was not paying
2088 attention to any local part prefix or suffix that was matched by the
2089 router that accepted the address. It now behaves in the same way as it
2090 does for delivery: the affixes are removed from the local part unless
2091 rcpt_include_affixes is set on the transport.
2092
fed77020
PH
2093PH/32 Add the sender address, as F=<...>, to the log line when logging a
2094 timeout during the DATA phase of an incoming message.
2095
7fe1560f
PH
2096PH/33 Sieve envelope tests were broken for match types other than :is. I have
2097 applied a patch sanctioned by the Sieve maintainer.
c688b954 2098
ebb6e6d5
PH
2099PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2100 the uid or gid is negative. A case of a negative gid caused this to be
2101 noticed. The fix allows for either to be negative.
2102
9c4e8f60
PH
2103PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2104 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2105 overlooked.
2106
2107PH/36 The change PH/12 above was broken. Fixed it.
2108
d7174846
PH
2109PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2110 the grounds that routing the same address twice would always produce the
2111 same answer. This might have been true once, but it is certainly no
2112 longer true now. Routing a child address may depend on the previous
2113 routing that produced that child. Some complicated redirection strategies
2114 went wrong when messages had multiple recipients, and made Exim's
2115 behaviour dependent on the order in which the addresses were given.
2116
2117 I have moved the duplicate checking until after the routing is complete.
2118 Exim scans the addresses that are assigned to local and remote
2119 transports, and removes any duplicates. This means that more work will be
2120 done, as duplicates will always all be routed, but duplicates are
2121 presumably rare, so I don't expect this is of any significance.
2122
2123 For deliveries to pipes, files, and autoreplies, the duplicate checking
2124 still happens during the routing process, since they are not going to be
2125 routed further.
2126
cfe75fc3
PH
2127PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2128 It corrects a timeout issue with spamd. This is Ian's comment: "The
2129 background is that sometimes spamd either never reads data from a
2130 connection it has accepted, or it never writes response data. The exiscan
2131 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2132 blindly assumes that writes won't block so it may never time out."
2133
be22d70e
PH
2134PH/39 Allow G after quota size as well as K and M.
2135
0612b098
PH
2136PH/40 The value set for $authenticated_id in an authenticator may not contain
2137 binary zeroes or newlines because the value is written to log lines and
2138 to spool files. There was no check on this. Now the value is run through
2139 the string_printing() function so that such characters are converted to
2140 printable escape sequences.
2141
2e0c1448
PH
2142PH/41 $message_linecount is a new variable that contains the total number of
2143 lines in the message. Compare $body_linecount, which is the count for the
2144 body only.
2145
447d236c
PH
2146PH/42 Exim no longer gives details of delivery errors for specific addresses in
2147 bounce and delay warning messages, except in certain special cases, which
2148 are as follows:
2149
2150 (a) An SMTP error message from a remote host;
2151 (b) A message specified in a :fail: redirection;
2152 (c) A message specified in a "fail" command in a system filter;
2153 (d) A message specified in a FAIL return from the queryprogram router;
2154 (e) A message specified by the cannot_route_message router option.
2155
2156 In these cases only, Exim does include the error details in bounce and
2157 warning messages. There are also a few cases where bland messages such
2158 as "unrouteable address" or "local delivery error" are given.
2159
d20976dc
PH
2160PH/43 $value is now also set for the "else" part of a ${run expansion.
2161
f656d135
PH
2162PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2163 being worked on, but at least Exim now implements the latest version to
2164 play with."
2165
2e2a30b4
PH
2166PH/45 In a pipe transport, although a timeout while waiting for the pipe
2167 process to complete was treated as a delivery failure, a timeout while
2168 writing the message to the pipe was logged, but erroneously treated as a
2169 successful delivery. Such timeouts include transport filter timeouts. For
2170 consistency with the overall process timeout, these timeouts are now
2171 treated as errors, giving rise to delivery failures by default. However,
2172 there is now a new Boolean option for the pipe transport called
2173 timeout_defer, which, if set TRUE, converts the failures into defers for
2174 both kinds of timeout. A transport filter timeout is now identified in
2175 the log output.
2176
9176e9f0
PH
2177PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2178 systems where "make" and "gmake" are different, calling "gmake" at top
2179 level broke things. I've arranged for the value of $(MAKE) to be passed
2180 from the Makefile to this script so that it can call the same version of
2181 "make".
2182
7982096b 2183
bbe902f0
PH
2184A note about Exim versions 4.44 and 4.50
2185----------------------------------------
2186
2187Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2188changes of various kinds. As a consequence, a big documentation update was
2189needed. This delayed the release for rather longer than seemed good, especially
2190in the light of a couple of (minor) security issues. Therefore, the changes
2191that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2192release. So 4.44 and 4.50 are in effect two different branches that both start
2193from 4.43.
2194
2195I have left the 4.50 change log unchanged; it contains all the changes since
21964.43. The change log for 4.44 is below; many of its items are identical to
2197those for 4.50. This seems to be the most sensible way to preserve the
2198historical information.
2199
2200
f7b63901 2201Exim version 4.50
495ae4b0
PH
2202-----------------
2203
5fe762f6
PH
2204 1. Minor wording change to the doc/README.SIEVE file.
2205
139059f6 2206 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2207 computation of the current number of files was incorrect.
495ae4b0 2208
7086e875
PH
2209 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2210 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2211 place.
2212
35af9f61
PH
2213 4. Give more explanation in the error message when the command for a transport
2214 filter fails to execute.
2215
b668c215
PH
2216 5. There are several places where Exim runs a non-Exim command in a
2217 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2218 was being done only for the command run by the queryprogram router. It is
2219 now done for all such subprocesses. The other cases are: ${run, transport
2220 filters, and the commands run by the lmtp and pipe transports.
2221
a494b1e1
PH
2222 6. Added CONFIGURE_GROUP build-time option.
2223
2224 7. Some older OS have a limit of 256 on the maximum number of file
2225 descriptors. Exim was using setrlimit() to set 1000 as a large value
2226 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2227 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2228
c5fcb476
PH
2229 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2230 was an oversight, and furthermore, ever since the addition of extra
2231 controls (e.g. 4.43/32), the checks on when to allow different forms of
2232 "control" were broken. There should now be diagnostics for all cases when a
2233 control that does not make sense is encountered.
2234
69358f02
PH
2235 9. Added the /retain_sender option to "control=submission".
2236
5be20824
PH
223710. $recipients is now available in the predata ACL (oversight).
2238
eb2c0248
PH
223911. Tidy the search cache before the fork to do a delivery from a message
2240 received from the command line. Otherwise the child will trigger a lookup
2241 failure and thereby defer the delivery if it tries to use (for example) a
2242 cached ldap connection that the parent has called unbind on.
2243
2a3eea10
PH
224412. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2245 of $address_data from the recipient verification was clobbered by the
2246 sender verification.
2247
224813. The value of address_data from a sender verification is now available in
2249 $sender_address_data in subsequent conditions in the ACL statement.
2250
23c7ff99
PH
225114. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2252
4deaf07d
PH
225315. Added a new option "connect=<time>" to callout options, to set a different
2254 connection timeout.
2255
926e1192
PH
225616. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2257 was its contents. (It was OK if the option was not defined at all.)
2258
650edc6f
PH
225917. A "Completed" log line is now written for messages that are removed from
2260 the spool by the -Mrm option.
2261
2c7db3f5
PH
226218. New variables $sender_verify_failure and $recipient_verify_failure contain
2263 information about exactly what failed.
2264
3d235903
PH
226519. Added -dd to debug only the daemon process.
2266
7c7ad977
PH
226720. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2268 handles timeouts, both on the server side and network timeouts. Renamed the
2269 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2270
981756db
PH
227121. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2272 It is now set to "smtps".
2273
d4eb88df
PH
227422. $host_address is now set to the target address during the checking of
2275 ignore_target_hosts.
2276
227723. When checking ignore_target_hosts for an ipliteral router, no host name was
2278 being passed; this would have caused $sender_host_name to have been used if
2279 matching the list had actually called for a host name (not very likely,
2280 since this list is usually IP addresses). A host name is now passed as
2281 "[x.x.x.x]".
2282
7d468ab8
PH
228324. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2284 code that specifies a non-restarting handler (typically sigaction() in
2285 modern systems) in an attempt to fix a rare and obscure crash bug.
2286
228725. Narrowed the window for a race in the daemon that could cause it to ignore
2288 SIGCHLD signals. This is not a major problem, because they are used only to
2289 wake it up if nothing else does.
2290
62c0818f
PH
229126. A malformed maildirsize file could cause Exim to calculate negative values
2292 for the mailbox size or file count. Odd effects could occur as a result.
2293 The maildirsize information is now recalculated if the size or filecount
2294 end up negative.
2295
26034054
PH
229627. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2297 support for a long time. Removed HAVE_SYS_VFS_H.
2298
af66f652
PH
229928. Installed the latest version of exipick from John Jetmore.
2300
90af77f4
PH
230129. In an address list, if the pattern was not a regular expression, an empty
2302 subject address (from a bounce message) matched only if the pattern was an
2303 empty string. Non-empty patterns were not even tested. This was the wrong
2304 because it is perfectly reasonable to use an empty address as part of a
2305 database query. An empty address is now tested by patterns that are
2306 lookups. However, all the other forms of pattern expect the subject to
2307 contain a local part and a domain, and therefore, for them, an empty
2308 address still always fails if the pattern is not itself empty.
2309
d8ef3577
PH
231030. Exim went into a mad DNS loop when attempting to do a callout where the
2311 host was specified on an smtp transport, and looking it up yielded more
2312 than one IP address.
2313
5cb8cbc6
PH
231431. Re-factored the code for checking spool and log partition space into a
2315 function that finds that data and another that does the check. The former
2316 is then used to implement four new variables: $spool_space, $log_space,
2317 $spool_inodes, and $log_inodes.
2318
14702f5b
PH
231932. The RFC2047 encoding function was originally intended for short strings
2320 such as real names; it was not keeping to the 75-character limit for
2321 encoded words that the RFC imposes. It now respects the limit, and
2322 generates multiple encoded words if necessary. To be on the safe side, I
2323 have increased the buffer size for the ${rfc2047: expansion operator from
2324 1024 to 2048 bytes.
2325
063b1e99
PH
232633. It is now permitted to omit both strings after an "if" condition; if the
2327 condition is true, the result is "true". As before, when the second string
2328 is omitted, a false condition yields an empty string. This makes it less
2329 cumbersome to write custom ACL and router conditions.
2330
652e1b65
PH
233134. Failure to deliver a bounce message always caused it to be frozen, even if
2332 there was an errors_to setting on the router. The errors_to setting is now
2333 respected.
2334
6f0c9a4f
PH
233535. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2336 canonical form (fully expanded) before being placed in
2337 $sender_host_address.
2338
33397d19
PH
233936. The table in the code that translates DNS record types into text (T_A to
2340 "A" for instance) was missing entries for NS and CNAME. It is just possible
2341 that this could have caused confusion if both these types were looked up
2342 for the same domain, because the text type is used as part of Exim's
2343 per-process caching. But the chance of anyone hitting this buglet seems
2344 very small.
2345
7bb56e1f
PH
234637. The dnsdb lookup has been extended in a number of ways.
2347
2348 (1) There is a new type, "zns", which walks up the domain tree until it
2349 finds some nameserver records. It should be used with care.
2350
ea3bc19b
PH
2351 (2) There is a new type, "mxh", which is like "mx" except that it returns
2352 just the host names, not the priorities.
2353
2354 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2355 looked up. The behaviour when one of the lookups defers can be
2356 controlled by a keyword.
7bb56e1f 2357
ea3bc19b 2358 (4) It is now possible to specify the separator character for use when
7bb56e1f 2359 multiple records are returned.
33397d19 2360
0bcb2a0e
PH
236138. The dnslists ACL condition has been extended: it is now possible to supply
2362 a list of IP addresses and/or domains to be looked up in a particular DNS
2363 domain.
2364
2ac0e484
PH
236539. Added log_selector=+queue_time_overall.
2366
4e1fde53
PH
236740. When running the queue in the test harness, wait just a tad after forking a
2368 delivery process, to get repeatability of debugging output.
2369
de365ded
PH
237041. Include certificate and key file names in error message when GnuTLS fails
2371 to set them up, because the GnuTLS error message doesn't include the name
2372 of the failing file when there is a problem reading it.
2373
f05da2e8
PH
237442. Allow both -bf and -bF in the same test run.
2375
d6453af2
PH
237643. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2377
f7b63901
PH
237844. The "Exiscan patch" is now merged into the mainline Exim source.
2379
238045. Sometimes the final signoff response after QUIT could fail to get
2381 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2382 < 0 before doing a fflush(). This bug looks as though it goes back to the
2383 introduction of TLS in release 3.20, but "sometimes" must have been rare
2384 because the tests only now provoked it.
2385
a444213a
PH
238646. Reset the locale to "C" after calling embedded Perl, in case it was changed
2387 (this can affect the format of dates).
2388
0ec020ea
PH
238947. exim_tidydb, when checking for the continued existence of a message for
2390 which it has found a message-specific retry record, was not finding
2391 messages that were in split spool directories. Consequently, it was
2392 deleting retry records that should have stayed in existence.
2393
b1206957
PH
239448. Steve fixed some bugs in eximstats.
2395
239649. The SPA authentication driver was not abandoning authentication and moving
2397 on to the next authenticator when an expansion was forced to fail,
2398 contradicting the general specification for all authenticators. Instead it
2399 was generating a temporary error. It now behaves as specified.
2400
26dd5a95
PH
240150. The default ordering of permitted cipher suites for GnuTLS was pessimal
2402 (the order specifies the preference for clients). The order is now AES256,
2403 AES128, 3DES, ARCFOUR128.
2404
343b2385
PH
240551. Small patch to Sieve code - explicitly set From: when generating an
2406 autoreply.
2407
1c5466b9
PH
240852. Exim crashed if a remote delivery caused a very long error message to be
2409 recorded - for instance if somebody sent an entire SpamAssassin report back
2410 as a large number of 550 error lines. This bug was coincidentally fixed by
2411 increasing the size of one of Exim's internal buffers (big_buffer) that
2412 happened as part of the Exiscan merge. However, to be on the safe side, I
2413 have made the code more robust (and fixed the comments that describe what
2414 is going on).
2415
55ee9ee3
PH
241653. Now that there can be additional text after "Completed" in log lines (if
2417 the queue_time_overall log selector is set), a one-byte patch to exigrep
2418 was needed to allow it to recognize "Completed" as not the last thing in
2419 the line.
2420
d38f8232
PH
242154. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2422 patch that reportedly fixes this has been added. I am not expert enough to
2423 create a test for it. This is what the patch creator wrote:
2424
2425 "I found a little strange behaviour of ldap code when working with
2426 Windows 2003 AD Domain, where users was placed in more than one
2427 Organization Units. When I tried to give exim partial DN, the exit code
2428 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2429 But simultaneously result of request was absolutely normal ldap result,
2430 so I produce this patch..."
2431
3295e65b
PH
2432 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2433 REFERENCE, so I have modified the code to exclude the patch when that macro
2434 is not defined.
2435
7102e136
PH
243655. Some experimental protocols are using DNS PTR records for new purposes. The
2437 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2438 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2439 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2440 CAN-2005-0021
7102e136 2441
3ca0ba97
PH
244256. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2443
c2bcbe20
PH
244457. Double the size of the debug message buffer (to 2048) so that more of very
2445 long debug lines gets shown.
2446
18ce445d
PH
244758. The exicyclog utility now does better if the number of log files to keep
2448 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2449
1f5b4c3d
PH
245059. Two changes related to the smtp_active_hostname option:
2451
2452 (1) $smtp_active_hostname is now available as a variable.
2453 (2) The default for smtp_banner uses $smtp_active_hostname instead
2454 of $primary_hostname.
2455
b975ba52
PH
245660. The host_aton() function is supposed to be passed a string that is known
2457 to be a valid IP address. However, in the case of IPv6 addresses, it was
2458 not checking this. This is a hostage to fortune. Exim now panics and dies
2459 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2460 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2461 components; fortuitously, this particular loophole had already been fixed
2462 by change 4.50/55 above.
2463
2464 If there are any other similar loopholes, the new check in host_aton()
2465 itself should stop them being exploited. The report I received stated that
2466 data on the command line could provoke the exploit when Exim was running as
2467 exim, but did not say which command line option was involved. All I could
2468 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2469 running as the user.
ea3a6f44 2470 CAN-2005-0021
85b87bc2
PH
2471
247261. There was a buffer overflow vulnerability in the SPA authentication code
2473 (which came originally from the Samba project). I have added a test to the
2474 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2475 CAN-2005-0022
b975ba52 2476
17ffcae7
PH
247762. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2478 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2479
d95f9fdb
PH
248063. The daemon start-up calls getloadavg() while still root for those OS that
2481 need the first call to be done as root, but it missed one case: when
2482 deliver_queue_load_max is set with deliver_drop_privilege. This is
2483 necessary for the benefit of the queue runner, because there is no re-exec
2484 when deliver_drop_privilege is set.
2485
86b8287f
PH
248664. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2487 This has been fixed.
2488
60dc5e56
PH
248965. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2490 was in use, was not putting the data itself into the right store pool;
2491 consequently, it could be overwritten for a subsequent message in the same
2492 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2493 the caching.)
2494
533244af
PH
249566. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2496
a5a28604
PH
249767. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2498 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2499 the function were treating the return as a boolean value, which happened to
2500 work because 0=false and not-0=true, but is not correct code.
2501
7e634d24
PH
250268. The host_aton() function was not handling scoped IPv6 addresses (those
2503 with, for example, "%eth0" on the end) correctly.
2504
3e11c26b
PH
250569. Fixed some compiler warnings in acl.c for the bitmaps specified with
2506 negated items (that is, ~something) in unsigned ints. Some compilers
2507 apparently mutter when there is no cast.
2508
6729cf78
PH
250970. If an address verification called from an ACL failed, and did not produce a
2510 user-specific message (i.e. there was only a "system" message), nothing was
2511 put in $acl_verify_message. In this situation, it now puts the system
2512 message there.
2513
00f00ca5
PH
251471. Change 4.23/11 added synchronization checking at the start of an SMTP
2515 session; change 4.31/43 added the unwanted input to the log line - except
2516 that it did not do this in the start of session case. It now does.
2517
c9bdd01c
PH
251872. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2519 This is wrong and can cause the other end to generate a synchronization
2520 error if it is another Exim or anything else that does the synchronization
2521 check. A QUIT command is no longer sent after a timeout.
2522
d43194df
PH
252373. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2524 during host lookups.
2525
fe5b5d0b
PH
252674. The defer_ok option of callout verification was not working if it was used
2527 when verifying addresses in header lines, that is, for this case:
2528
2529 verify = header_sender/callout=defer_ok
2530
76a2d7ba
PH
253175. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2532 those file descriptors could be used for SMTP connections. If anything
2533 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2534 could be sent to the SMTP client, causing chaos. The daemon now opens
2535 stdin, stdout, and stderr to /dev/null when it puts itself into the
2536 background.
2537
253876. Arrange for output from Perl's "warn" command to be written to Exim's main
2539 log by default. The user can override this with suitable Perl magic.
2540
04f7d5b9
PH
254177. The use of log_message on a "discard" ACL verb, which is supposed to add to
2542 the log message when discard triggers, was not working for the DATA ACL or
2543 for the non-SMTP ACL.
2544
bc60667e
PH
254578. Error message wording change in sieve.c.
2546
bb6e88ff
PH
254779. If smtp_accept_max_per_host was set, the number of connections could be
2548 restricted to fewer than expected, because the daemon was trying to set up
2549 a new connection before checking whether the processes handling previous
2550 connections had finished. The check for completed processes is now done
2551 earlier. On busy systems, this bug wouldn't be noticed because something
2552 else would have woken the daemon, and it would have reaped the completed
2553 process earlier.
2554
1e70f85b
PH
255580. If a message was submitted locally by a user whose login name contained one
2556 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2557 It caused a spool format error. I have fixed the spool reading code. A
2558 related problem was that the "from" clause in the Received: line became
2559 illegal because of the space(s). It is now covered by ${quote_local_part.
2560
256181. Included the latest eximstats from Steve (adds average sizes to HTML Top
2562 tables).
2563
4e01f9d6
PH
256482. Updated OS/Makefile-AIX as per message from Mike Meredith.
2565
1ee1cef2
PH
256683. Patch from Sieve maintainer to fix unterminated string problem in
2567 "vacation" handling.
2568
6e2b4ccc
PH
256984. Some minor changes to the Linux configuration files to help with other
2570 OS variants using glibc.
2571
8e669ac1
PH
257285. One more patch for Sieve to update vacation handling to latest spec.
2573
495ae4b0 2574
bbe902f0
PH
2575----------------------------------------------------
2576See the note above about the 4.44 and 4.50 releases.
2577----------------------------------------------------
2578
2579
2580Exim version 4.44
2581-----------------
2582
2583 1. Change 4.43/35 introduced a bug that caused file counts to be
2584 incorrectly computed when quota_filecount was set in an appendfile
2585 transport
2586
2587 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2588 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2589 place.
2590
2591 3. Give more explanation in the error message when the command for a transport
2592 filter fails to execute.
2593
2594 4. There are several places where Exim runs a non-Exim command in a
2595 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2596 was being done only for the command run by the queryprogram router. It is
2597 now done for all such subprocesses. The other cases are: ${run, transport
2598 filters, and the commands run by the lmtp and pipe transports.
2599
2600 5. Some older OS have a limit of 256 on the maximum number of file
2601 descriptors. Exim was using setrlimit() to set 1000 as a large value
2602 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2603 systems. I've change it so that if it can't get 1000, it tries for 256.
2604
2605 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2606 was an oversight, and furthermore, ever since the addition of extra
2607 controls (e.g. 4.43/32), the checks on when to allow different forms of
2608 "control" were broken. There should now be diagnostics for all cases when a
2609 control that does not make sense is encountered.
2610
2611 7. $recipients is now available in the predata ACL (oversight).
2612
2613 8. Tidy the search cache before the fork to do a delivery from a message
2614 received from the command line. Otherwise the child will trigger a lookup
2615 failure and thereby defer the delivery if it tries to use (for example) a
2616 cached ldap connection that the parent has called unbind on.
2617
2618 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2619 of $address_data from the recipient verification was clobbered by the
2620 sender verification.
2621
262210. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2623 was its contents. (It was OK if the option was not defined at all.)
2624
262511. A "Completed" log line is now written for messages that are removed from
2626 the spool by the -Mrm option.
2627
262812. $host_address is now set to the target address during the checking of
2629 ignore_target_hosts.
2630
263113. When checking ignore_target_hosts for an ipliteral router, no host name was
2632 being passed; this would have caused $sender_host_name to have been used if
2633 matching the list had actually called for a host name (not very likely,
2634 since this list is usually IP addresses). A host name is now passed as
2635 "[x.x.x.x]".
2636
263714. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2638 code that specifies a non-restarting handler (typically sigaction() in
2639 modern systems) in an attempt to fix a rare and obscure crash bug.
2640
264115. Narrowed the window for a race in the daemon that could cause it to ignore
2642 SIGCHLD signals. This is not a major problem, because they are used only to
2643 wake it up if nothing else does.
2644
264516. A malformed maildirsize file could cause Exim to calculate negative values
2646 for the mailbox size or file count. Odd effects could occur as a result.
2647 The maildirsize information is now recalculated if the size or filecount
2648 end up negative.
2649
265017. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2651 support for a long time. Removed HAVE_SYS_VFS_H.
2652
ea3a6f44 265318. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2654
265519. Allow an empty sender to be matched against a lookup in an address list.
2656 Previously the only cases considered were a regular expression, or an
2657 empty pattern.
2658
265920. Exim went into a mad DNS lookup loop when doing a callout where the
2660 host was specified on the transport, if the DNS lookup yielded more than
2661 one IP address.
2662
ea3a6f44
NM
266321. The RFC2047 encoding function was originally intended for short strings
2664 such as real names; it was not keeping to the 75-character limit for
2665 encoded words that the RFC imposes. It now respects the limit, and
2666 generates multiple encoded words if necessary. To be on the safe side, I
2667 have increased the buffer size for the ${rfc2047: expansion operator from
2668 1024 to 2048 bytes.
bbe902f0 2669
ea3a6f44
NM
267022. Failure to deliver a bounce message always caused it to be frozen, even if
2671 there was an errors_to setting on the router. The errors_to setting is now
2672 respected.
bbe902f0
PH
2673
267423. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2675 canonical form (fully expanded) before being placed in
2676 $sender_host_address.
2677
267824. Updated eximstats to version 1.33
2679
ea3a6f44
NM
268025. Include certificate and key file names in error message when GnuTLS fails
2681 to set them up, because the GnuTLS error message doesn't include the name
2682 of the failing file when there is a problem reading it.
bbe902f0
PH
2683
268426. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2685 As per change 25.
bbe902f0 2686
ea3a6f44
NM
268727. Reset the locale to "C" after calling embedded Perl, in case it was changed
2688 (this can affect the format of dates).
bbe902f0 2689
ea3a6f44
NM
269028. exim_tidydb, when checking for the continued existence of a message for
2691 which it has found a message-specific retry record, was not finding
2692 messages that were in split spool directories. Consequently, it was
2693 deleting retry records that should have stayed in existence.
bbe902f0
PH
2694
269529. eximstats updated to version 1.35
2696 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2697 1.35 - bugfix such that pie charts by volume are generated correctly
2698
ea3a6f44
NM
269930. The SPA authentication driver was not abandoning authentication and moving
2700 on to the next authenticator when an expansion was forced to fail,
2701 contradicting the general specification for all authenticators. Instead it
2702 was generating a temporary error. It now behaves as specified.
bbe902f0 2703
ea3a6f44
NM
270431. The default ordering of permitted cipher suites for GnuTLS was pessimal
2705 (the order specifies the preference for clients). The order is now AES256,
2706 AES128, 3DES, ARCFOUR128.
bbe902f0 2707
ea3a6f44
NM
270831. Small patch to Sieve code - explicitly set From: when generating an
2709 autoreply.
bbe902f0 2710
ea3a6f44
NM
271132. Exim crashed if a remote delivery caused a very long error message to be
2712 recorded - for instance if somebody sent an entire SpamAssassin report back
2713 as a large number of 550 error lines. This bug was coincidentally fixed by
2714 increasing the size of one of Exim's internal buffers (big_buffer) that
2715 happened as part of the Exiscan merge. However, to be on the safe side, I
2716 have made the code more robust (and fixed the comments that describe what
2717 is going on).
bbe902f0 2718
ea3a6f44
NM
271933. Some experimental protocols are using DNS PTR records for new purposes. The
2720 keys for these records are domain names, not reversed IP addresses. The
2721 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2722 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2723 CAN-2005-0021
2724
ea3a6f44
NM
272534. The host_aton() function is supposed to be passed a string that is known
2726 to be a valid IP address. However, in the case of IPv6 addresses, it was
2727 not checking this. This is a hostage to fortune. Exim now panics and dies
2728 if the condition is not met. A case was found where this could be provoked
2729 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2730 components; fortuitously, this particular loophole had already been fixed
2731 by change 4.50/55 or 4.44/33 above.
2732
2733 If there are any other similar loopholes, the new check in host_aton()
2734 itself should stop them being exploited. The report I received stated that
2735 data on the command line could provoke the exploit when Exim was running as
2736 exim, but did not say which command line option was involved. All I could
2737 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2738 running as the user.
bbe902f0
PH
2739 CAN-2005-0021
2740
ea3a6f44
NM
274135. There was a buffer overflow vulnerability in the SPA authentication code
2742 (which came originally from the Samba project). I have added a test to the
2743 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2744 CAN-2005-0022
2745
ea3a6f44
NM
274636. The daemon start-up calls getloadavg() while still root for those OS that
2747 need the first call to be done as root, but it missed one case: when
2748 deliver_queue_load_max is set with deliver_drop_privilege. This is
2749 necessary for the benefit of the queue runner, because there is no re-exec
2750 when deliver_drop_privilege is set.
bbe902f0 2751
ea3a6f44
NM
275237. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2753 was in use, was not putting the data itself into the right store pool;
2754 consequently, it could be overwritten for a subsequent message in the same
2755 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2756 the caching.)
bbe902f0 2757
ea3a6f44
NM
275838. Sometimes the final signoff response after QUIT could fail to get
2759 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2760 < 0 before doing a fflush(). This bug looks as though it goes back to the
2761 introduction of TLS in release 3.20, but "sometimes" must have been rare
2762 because the tests only now provoked it.
bbe902f0
PH
2763
2764
495ae4b0
PH
2765Exim version 4.43
2766-----------------
2767
2768 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2769 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2770 Now it returns an integer. A number of calls were still expecting a T/F
2771 return. Fortuitously, in all cases, the tests worked in OK situations,
2772 which is the norm. However, things would have gone wrong on any write
2773 failures on the smtp file descriptor. This function is used when sending
2774 messages over SMTP and also when doing verify callouts.
2775
2776 2. When Exim is called to do synchronous delivery of a locally submitted
2777 message (the -odf or -odi options), it no longer closes stderr before doing
2778 the delivery.
2779
2780 3. Implemented the mua_wrapper option.
2781
2782 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2783
2784 5. Implemented the functions header_remove(), header_testname(),
2785 header_add_at_position(), and receive_remove_recipient(), and exported them
2786 to local_scan().
2787
2788 6. If an ACL "warn" statement specified the addition of headers, Exim already
2789 inserted X-ACL-Warn: at the start if there was no header name. However, it
2790 was not making this test for the second and subsequent header lines if
2791 there were newlines in the string. This meant that an invalid header could
2792 be inserted if Exim was badly configured.
2793
2794 7. Allow an ACL "warn" statement to add header lines at the start or after all
2795 the Received: headers, as well as at the end.
2796
2797 8. Added the rcpt_4xx retry error code.
2798
2799 9. Added postmaster_mailfrom=xxx to callout verification option.
2800
280110. Added mailfrom=xxxx to the callout verification option, for verify=
2802 header_sender only.
2803
280411. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2805 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2806
280712. Inserted some casts to stop certain compilers warning when using pointer
2808 differences as field lengths or precisions in printf-type calls (mostly
2809 affecting debugging statements).
2810
281113. Added optional readline() support for -be (dynamically loaded).
2812
281314. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2814 same clock tick as a message's arrival, so that its received time was the
2815 same as the "first fail" time on the retry record, and that message
2816 remained on the queue past the ultimate address timeout, every queue runner
2817 would try a delivery (because it was past the ultimate address timeout) but
2818 after another failure, the ultimate address timeout, which should have then
2819 bounced the address, did not kick in. This was a "< instead of <=" error;
2820 in most cases the first failure would have been in the next clock tick
2821 after the received time, and all would be well.
2822
282315. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2824 being recognized when the domain list was tested by the match_domain
2825 condition in an expansion string.
2826
282716. Added the ${str2b64: operator.
2828
282917. Exim was always calling setrlimit() to set a large limit for the number of
2830 processes, without checking whether the existing limit was already
2831 adequate. (It did check for the limit on file descriptors.) Furthermore,
2832 errors from getrlimit() and setrlimit() were being ignored. Now they are
2833 logged to the main and panic logs, but Exim does carry on, to try to do its
2834 job under whatever limits there are.
2835
283618. Imported PCRE 5.0.
2837
283819. Trivial typo in log message " temporarily refused connection" (the leading
2839 space).
2840
284120. If the log selector return_path_on_delivery was set and an address was
2842 redirected to /dev/null, the delivery process crashed because it assumed
2843 that a return path would always be set for a "successful" delivery. In this
2844 case, the whole delivery is bypassed as an optimization, and therefore no
2845 return path is set.
2846
284721. Internal re-arrangement: the function for sending a challenge and reading
2848 a response while authentication was assuming a zero-terminated challenge
2849 string. It's now changed to take a pointer and a length, to allow for
2850 binary data in such strings.
2851
285222. Added the cyrus_sasl authenticator (code supplied by MBM).
2853
285423. Exim was not respecting finduser_retries when seeking the login of the
2855 uid under which it was called; it was always trying 10 times. (The default
2856 setting of finduser_retries is zero.) Also, it was sleeping after the final
2857 failure, which is pointless.
2858
285924. Implemented tls_on_connect_ports.
2860
286125. Implemented acl_smtp_predata.
2862
286326. If the domain in control=submission is set empty, Exim assumes that the
2864 authenticated id is a complete email address when it generates From: or
2865 Sender: header lines.
2866
286727. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2868 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2869 chown and chgrp in /bin and hostname in /usr/bin.
2870
287128. Exim was keeping the "process log" file open after each use, just as it
2872 does for the main log. This opens the possibility of it remaining open for
2873 long periods when the USR1 signal hits a daemon. Occasional processlog
2874 errors were reported, that could have been caused by this. Anyway, it seems
2875 much more sensible not to leave this file open at all, so that is what now
2876 happens.
2877
287829. The long-running daemon process does not normally write to the log once it
2879 has entered its main loop, and it closes the log before doing so. This is
2880 so that log files can straightforwardly be renamed and moved. However,
2881 there are a couple of unusual error situations where the daemon does write
2882 log entries, and I had neglected to close the log afterwards.
2883
288430. The text of an SMTP error response that was received during a remote
2885 delivery was being truncated at 512 bytes. This is too short for some of
2886 the long messages that one sometimes sees. I've increased the limit to
2887 1024.
2888
288931. It is now possible to make retry rules that apply only when a message has a
2890 specific sender, in particular, an empty sender.
2891
289232. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2893 it possible to be selective about when SMTP synchronization is enforced.
2894
289533. Added "control = caseful_local_part" and "control = "caselower_local_part".
2896
289732. Implemented hosts_connection_nolog.
2898
289933. Added an ACL for QUIT.
2900
290134. Setting "delay_warning=" to disable warnings was not working; it gave a
2902 syntax error.
2903
290435. Added mailbox_size and mailbox_filecount to appendfile.
2905
290636. Added control = no_multiline_responses to ACLs.
2907
290837. There was a bug in the logic of the code that waits for the clock to tick
2909 in the case where the clock went backwards by a substantial amount such
2910 that the microsecond fraction of "now" was more than the microsecond
2911 fraction of "then" (but the whole seconds number was less).
2912
291338. Added support for the libradius Radius client library this is found on
2914 FreeBSD (previously only the radiusclient library was supported).
2915
2916
2917Exim version 4.42
2918-----------------
2919
2920 1. When certain lookups returned multiple values in the form name=value, the
2921 quoting of the values was not always being done properly. Specifically:
2922 (a) If the value started with a double quote, but contained no whitespace,
2923 it was not quoted.
2924 (b) If the value contained whitespace other than a space character (i.e.
2925 tabs or newlines or carriage returns) it was not quoted.
2926 This fix has been applied to the mysql and pgsql lookups by writing a
2927 separate quoting function and calling it from the lookup code. The fix
2928 should probably also be applied to nisplus, ibase and oracle lookups, but
2929 since I cannot test any of those, I have not disturbed their existing code.
2930
2931 2. A hit in the callout cache for a specific address caused a log line with no
2932 reason for rejecting RCPT. Now it says "Previous (cached) callout
2933 verification failure".
2934
2935 3. There was an off-by-one bug in the queryprogram router. An over-long
2936 return line was truncated at 256 instead of 255 characters, thereby
2937 overflowing its buffer with the terminating zero. As well as fixing this, I
2938 have increased the buffer size to 1024 (and made a note to document this).
2939
2940 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2941 when Exim is waiting for an SMTP response from a remote server, Exim
2942 restarts its select() call on the socket, thereby resetting its timeout.
2943 This is not a problem when such interrupts are rare. Somebody set up a cron
2944 job to run exiwhat every 2 minutes, which is less than the normal select()
2945 timeout (5 or 10 minutes). This meant that the select() timeout never
2946 kicked in because it was always reset. I have fixed this by comparing the
2947 time when an interrupt arrives with the time at the start of the first call
2948 to select(). If more time than the timeout has elapsed, the interrupt is
2949 treated as a timeout.
2950
2951 5. Some internal re-factoring in preparation for the addition of Sieve
2952 extensions (by MH). In particular, the "personal" test is moved to a
2953 separate function, and given an option for scanning Cc: and Bcc: (which is
2954 not set for Exim filters).
2955
2956 6. When Exim created an email address using the login of the caller as the
2957 local part (e.g. when creating a From: or Sender: header line), it was not
2958 quoting the local part when it contained special characters such as @.
2959
2960 7. Installed new OpenBSD configuration files.
2961
2962 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2963 try to make them clearer.
2964
2965 9. Callout options, other than the timeout value, were being ignored when
2966 verifying sender addresses in header lines. For example, when using
2967
2968 verify = header_sender/callout=no_cache
2969
2970 the cache was (incorrectly) being used.
2971
297210. Added a missing instance of ${EXE} to the exim_install script; this affects
2973 only the Cygwin environment.
2974
297511. When return_path_on_delivery was set as a log selector, if different remote
2976 addresses in the same message used different return paths and parallel
2977 remote delivery occurred, the wrong values would sometimes be logged.
2978 (Whenever a remote delivery process finished, the return path value from
2979 the most recently started remote delivery process was logged.)
2980
298112. RFC 3848 specifies standard names for the "with" phrase in Received: header
2982 lines when AUTH and/or TLS are in use. This is the "received protocol"
2983 field. Exim used to use "asmtp" for authenticated SMTP, without any
2984 indication (in the protocol name) for TLS use. Now it follows the RFC and
2985 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
2986 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
2987 names appear in log lines as well as in Received: header lines.
2988
298913. Installed MH's patches for Sieve to add the "copy" and "vacation"
2990 extensions, and comparison tests, and to fix some bugs.
2991
299214. Changes to the "personal" filter test:
2993
2994 (1) The test was buggy in that it was just doing the equivalent of
2995 "contains" tests on header lines. For example, if a user's address was
2996 anne@some.where, the "personal" test would incorrectly be true for
2997
2998 To: susanne@some.where
2999
3000 This test is now done by extracting each address from the header in turn,
3001 and checking the entire address. Other tests that are part of "personal"
3002 are now done using regular expressions (for example, to check local parts
3003 of addresses in From: header lines).
3004
3005 (2) The list of non-personal local parts in From: addresses has been
3006 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3007 taken from the Sieve specification recommendations.
3008
3009 (3) If the message contains any header line starting with "List-" it is
3010 treated as non-personal.
3011
3012 (4) The test for "circular" in the Subject: header line has been removed
3013 because it now seems ill-conceived.
3014
301515. Minor typos in src/EDITME comments corrected.
3016
301716. Installed latest exipick from John Jetmore.
3018
301917. If headers_add on a router specified a text string that was too long for
3020 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3021 of string_sprintf() is now avoided.
3022
302318. $message_body_size was not set (it was always zero) when running the DATA
3024 ACL and the local_scan() function.
3025
302619. For the "mail" command in an Exim filter, no default was being set for
3027 the once_repeat time, causing a random time value to be used if "once" was
3028 specified. (If the value happened to be <= 0, no repeat happened.) The
3029 default is now 0s, meaning "never repeat". The "vacation" command was OK
3030 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3031 (I found it when inspecting the code).
3032
303320. There is now an overall timeout for performing a callout verification. It
3034 defaults to 4 times the callout timeout, which applies to individual SMTP
3035 commands during the callout. The overall timeout applies when there is more
3036 than one host that can be tried. The timeout is checked before trying the
3037 next host. This prevents very long delays if there are a large number of
3038 hosts and all are timing out (e.g. when the network connections are timing
3039 out). The value of the overall timeout can be changed by specifying an
3040 additional sub-option for "callout", called "maxwait". For example:
3041
3042 verify = sender/callout=5s,maxwait=20s
3043
304421. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3045 to the end before writing, but this should make it even safer).
3046
304722. Exim was forgetting that it had advertised PIPELINING for the second and
3048 subsequent messages on an SMTP connection. It was also not resetting its
3049 memory on STARTTLS and an internal HELO.
3050
305123. When Exim logs an SMTP synchronization error within a session, it now
3052 records whether PIPELINING has been advertised or not.
3053
305424. Added 3 instances of "(long int)" casts to time_t variables that were being
3055 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3056 rather than long int.
3057
305825. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3059
306026. Added the never_mail option to autoreply.
3061
3062
3063Exim version 4.41
3064-----------------
3065
3066 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3067 crash if the getsockname() call failed; this can happen if a connection is
3068 closed very soon after it is established. The problem was simply in the
3069 order in which certain operations were done, causing Exim to try to write
3070 to the SMTP stream before it had set up the file descriptor. The bug has
3071 been fixed by making things happen in the correct order.
3072
3073
3074Exim version 4.40
3075-----------------
3076
3077 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3078 before the connection was closed, thus losing the rejection response.
3079
3080 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3081 some early Solaris releases, but causes trouble in current releases where
3082 socklen_t is defined.
3083
3084 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3085 always exist.
3086
3087 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3088 configured.
3089
3090 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3091 that releasing the top of it at the end releases what was used for sub-
3092 expansions (unless the block got too big). However, discard this block if
3093 the first thing is a variable or header, so that we can use its block when
3094 it is dynamic (useful for very large $message_headers, for example).
3095
3096 6. Lookups now cache *every* query, not just the most recent. A new, separate
3097 store pool is used for this. It can be recovered when all lookup caches are
3098 flushed. Lookups now release memory at the end of their result strings.
3099 This has involved some general refactoring of the lookup sources.
3100
3101 7. Some code has been added to the store_xxx() functions to reduce the amount
3102 of flapping under certain conditions.
3103
3104 8. log_incoming_interface used to affect only the <= reception log lines. Now
3105 it causes the local interface and port to be added to several more SMTP log
3106 lines, for example "SMTP connection from", and rejection lines.
3107
3108 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3109
311010. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3111
311211. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3113 could be overwritten at the end of the current message (or the start of a
3114 new message if it was set in a HELO ACL). The value is now preserved for
3115 the duration of the SMTP connection.
3116
311712. If a transport had a headers_rewrite setting, and a matching header line
3118 contained an unqualified address, that address was qualified, even if it
3119 did not match any rewriting rules. The underlying bug was that the values
3120 of the flags that permit the existence of unqualified sender and recipient
3121 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3122 non-local messages, and by -bnq for local messages) were not being
3123 preserved with the message after it was received.
3124
312513. When Exim was logging an SMTP synchronization error, it could sometimes log
3126 "next input=" as part of the text comprising the host identity instead of
3127 the correct text. The code was using the same buffer for two different
3128 strings. However, depending on which order the printing function evaluated
3129 its arguments, the bug did not always show up. Under Linux, for example, my
3130 test suite worked just fine.
3131
313214. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3133 doesn't work with some older versions of Perl. It has been changed to "my",
3134 which in any case is probably the better facility to use.
3135
313615. A really picky compiler found some instances of statements for creating
3137 error messages that either had too many or two few arguments for the format
3138 string.
3139
314016. The size of the buffer for calls to the DNS resolver has been increased
3141 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3142 for addresses that have a lot of PTR records. This alleviates a problem; it
3143 does not fully solve it.
3144
314517. A dnsdb lookup for PTR records that receives more data than will fit in the
3146 buffer now truncates the list and logs the incident, which is the same
3147 action as happens when Exim is looking up a host name and its aliases.
3148 Previously in this situation something unpredictable would happen;
3149 sometimes it was "internal error: store_reset failed".
3150
315118. If a server dropped the connection unexpectedly when an Exim client was
3152 using GnuTLS and trying to read a response, the client delivery process
3153 crashed while trying to generate an error log message.
3154
315519. If a "warn" verb in an ACL added multiple headers to a message in a single
3156 string, for example:
3157
3158 warn message = H1: something\nH2: something
3159
3160 the text was added as a single header line from Exim's point of view
3161 though it ended up OK in the delivered message. However, searching for the
3162 second and subsequent header lines using $h_h2: did not work. This has been
3163 fixed. Similarly, if a system filter added multiple headers in this way,
3164 the routers could not see them.
3165
316620. Expanded the error message when iplsearch is called with an invalid key to
3167 suggest using net-iplsearch in a host list.
3168
316921. When running tests using -bh, any delays imposed by "delay" modifiers in
3170 ACLs are no longer actually imposed (and a message to that effect is
3171 output).
3172
317322. If a "gecos" field in a passwd entry contained escaped characters, in
3174 particular, if it contained a \" sequence, Exim got it wrong when building
3175 a From: or a Sender: header from that name. A second bug also caused
3176 incorrect handling when an unquoted " was present following a character
3177 that needed quoting.
3178
317923. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3180 was not being matched caselessly.
3181
318224. Arranged for all hyphens in the exim.8 source to be escaped with
3183 backslashes.
3184
318525. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3186 properly. Recipient callout cache records were still being keyed to include
3187 the sender, even when use_sender was set false. This led to far more
3188 callouts that were necessary. The sender is no longer included in the key
3189 when use_sender is false.
3190
319126. Added "control = submission" modifier to ACLs.
3192
319327. Added the ${base62d: operator to decode base 62 numbers.
3194
319528. dnsdb lookups can now access SRV records.
3196
319729. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3198 the configuration file.
3199
320030. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3201 (-v) mode. This makes the output for a verbose queue run more intelligible.
3202
320331. Added a use_postmaster feature to recipient callouts.
3204
320532. Added the $body_zerocount variable, containing the number of binary zero
3206 bytes in the message body.
3207
320833. The time of last modification of the "new" subdirectory is now used as the
3209 "mailbox time last read" when there is a quota error for a maildir
3210 delivery.
3211
321234. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3213
321435. Added +ignore_unknown as a special item in host lists.
3215
321636. Code for decoding IPv6 addresses in host lists is now included, even if
3217 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3218 address was recognized as an IP address, but was then not correctly decoded
3219 into binary, causing unexpected and incorrect effects when compared with
3220 another IP address.
3221
3222
3223Exim version 4.34
3224-----------------
3225
3226 1. Very minor rewording of debugging text in manualroute to say "list of
3227 hosts" instead of "hostlist".
3228
3229 2. If verify=header_syntax was set, and a header line with an unqualified
3230 address (no domain) and a large number of spaces between the end of the
3231 name and the colon was received, the reception process suffered a buffer
3232 overflow, and (when I tested it) crashed. This was caused by some obsolete
3233 code that should have been removed. The fix is to remove it!
3234
3235 3. When running in the test harness, delay a bit after writing a bounce
3236 message to get a bit more predictability in the log output.
3237
3238 4. Added a call to search_tidyup() just before forking a reception process. In
3239 theory, someone could use a lookup in the expansion of smtp_accept_max_
3240 per_host which, without the tidyup, could leave open a database connection.
3241
3242 5. Added the variables $recipient_data and $sender_data which get set from a
3243 lookup success in an ACL "recipients" or "senders" condition, or a router
3244 "senders" option, similar to $domain_data and $local_part_data.
3245
3246 6. Moved the writing of debug_print from before to after the "senders" test
3247 for routers.
3248
3249 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3250 problems for message scanning, either using a data ACL, or using
3251 local_scan() because the Received: header was not generated till after they
3252 were called (in order to set the time as the time of reception completion).
3253 I have revised the way this works. The header is now generated after the
3254 body is received, but before the ACL or local_scan() are called. After they
3255 are run, the timestamp in the header is updated.
3256
3257
3258Exim version 4.33
3259-----------------
3260
3261 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3262 before starting a queue runner without re-exec. This happened only when
3263 deliver_drop_privilege was set or when the Exim user was set to root. The
3264 effect of the bug was that timeouts during subsequent deliveries caused
3265 crashes instead of being properly handled. The handler is now left at its
3266 default (and expected) setting.
3267
3268 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3269 message, again when deliver_drop_privilege is set or Exim is run as root.
3270 The bug described in (1) was not present in this case, but the tidying up
3271 of the other signals was missing. I have made the two cases consistent.
3272
3273 3. The ignore_target_hosts setting on a manualroute router was being ignored
3274 for hosts that were looked up using the /MX notation.
3275
3276 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3277 in domain lists.
3278
3279 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3280 operated on the sender address. After changing the $sender_address to <>
3281 for the sender address verify, Exim was re-instated it as the original
3282 (before rewriting) address, but remembering that it had rewritten it, so it
3283 wasn't rewriting it again. This bug also had the effect of breaking the
3284 sender address verification caching when the sender address was rewritten.
3285
3286 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3287 This has been changed so that if the ip literal address matches
3288 ignore_target_hosts, the router declines.
3289
3290 7. Added expansion conditions match_domain, match_address, and match_local_
3291 part (NOT match_host).
3292
3293 8. The placeholder for the Received: header didn't have a length field set.
3294
3295 9. Added code to Exim itself and to exim_lock to test for a specific race
3296 condition that could lead to file corruption when using MBX delivery. The
3297 issue is with the lockfile that is created in /tmp. If this file is removed
3298 after a process has opened it but before that process has acquired a lock,
3299 there is the potential for a second process to recreate the file and also
3300 acquire a lock. This could lead to two Exim processes writing to the file
3301 at the same time. The added code performs the same test as UW imapd; it
3302 checks after acquiring the lock that its file descriptor still refers to
3303 the same named file.
3304
330510. The buffer for building added header lines was of fixed size, 8192 bytes.
3306 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3307 when Exim is built.
3308
330911. Added the smtp_active_hostname option. If used, this will typically be made
3310 to depend on the incoming interface address. Because $interface_address is
3311 not set up until the daemon has forked a reception process, error responses
3312 that can happen earlier (such as "too many connections") no longer contain
3313 a host name.
3314
331512. If an expansion in a condition on a "warn" statement fails because a lookup
3316 defers, the "warn" statement is abandoned, and the next ACL statement is
3317 processed. Previously this caused the whole ACL to be aborted.
3318
331913. Added the iplsearch lookup type.
3320
332114. Added ident_timeout as a log selector.
3322
332315. Added tls_certificate_verified as a log selector.
3324
332516. Added a global option tls_require_ciphers (compare the smtp transport
3326 option of the same name). This controls incoming TLS connections.
3327
332817. I finally figured out how to make tls_require_ciphers do a similar thing
3329 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3330 before starting the TLS session.
3331
333218. Tabs are now shown as \t in -bP output.
3333
333419. If the log selector return_path_on_delivery was set, Exim crashed when
3335 bouncing a message because it had too many Received: header lines.
3336
333720. If two routers both had headers_remove settings, and the first one included
3338 a superfluous trailing colon, the final name in the first list and the
3339 first name in the second list were incorrectly joined into one item (with a
3340 colon in the middle).
3341
3342
3343Exim version 4.32
3344-----------------
3345
3346 1. Added -C and -D options to the exinext utility, mainly to make it easier
3347 to include in the automated testing, but these could be helpful when
3348 multiple configurations are in use.
3349
3350 2. The exinext utility was not formatting the output nicely when there was
3351 an alternate port involved in the retry record key, nor when there was a
3352 message id as well (for retries that were specific to a specific message
3353 and a specific host). It was also confused by IPv6 addresses, because of
3354 the additional colons they contain. I have fixed the IPv4 problem, and
3355 patched it up to do a reasonable job for IPv6.
3356
3357 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3358 delivery, the log line now contains "pipelined" if PIPELINING was used.
3359
3360 4. An SMTP transport process used to panic and die if the bind() call to set
3361 an explicit outgoing interface failed. This has been changed; it is now
3362 treated in the same way as a connect() failure.
3363
3364 5. A reference to $sender_host_name in the part of a conditional expansion
3365 that was being skipped was still causing a DNS lookup. This no longer
3366 occurs.
3367
3368 6. The def: expansion condition was not recognizing references to header lines
3369 that used bh_ and bheader_.
3370
3371 7. Added the _cache feature to named lists.
3372
3373 8. The code for checking quota_filecount in the appendfile transport was
3374 allowing one more file than it should have been.
3375
3376 9. For compatibility with Sendmail, the command line option
3377
3378 -prval:sval
3379
3380 is equivalent to
3381
3382 -oMr rval -oMs sval
3383
3384 and sets the incoming protocol and host name (for trusted callers). The
3385 host name and its colon can be omitted when only the protocol is to be set.
3386 Note the Exim already has two private options, -pd and -ps, that refer to
3387 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3388 "s", but I don't think that's a major issue.
3389
339010. A number of refactoring changes to the code, none of which should affect
3391 Exim's behaviour:
3392
3393 (a) The number of logging options was getting close to filling up the
3394 32-bit word that was used as a bit map. I have split them into two classes:
3395 those that are passed in the argument to log_write(), and those that are
3396 only ever tested independently outside of that function. These are now in
3397 separate 32-bit words, so there is plenty of room for expansion again.
3398 There is no change in the user interface or the logging behaviour.
3399
3400 (b) When building, for example, log lines, the code previously used a
3401 macro that called string_cat() twice, in order to add two strings. This is
3402 not really sufficiently general. Furthermore, there was one instance where
3403 it was actually wrong because one of the argument was used twice, and in
3404 one call a function was used. (As it happened, calling the function twice
3405 did not affect the overall behaviour.) The macro has been replaced by a
3406 function that can join an arbitrary number of extra strings onto a growing
3407 string.
3408
3409 (c) The code for expansion conditions now uses a table and a binary chop
3410 instead of a serial search (which was left over from when there were very
3411 few conditions). Also, it now recognizes conditions like "pam" even when
3412 the relevant support is not compiled in: a suitably worded error message is
3413 given if an attempt is made to use such a condition.
3414
341511. Added ${time_interval:xxxxx}.
3416
341712. A bug was causing one of the ddress fields not to be passed back correctly
3418 from remote delivery subprocesses. The field in question was not being
3419 subsequently used, so this caused to problems in practice.
3420
342113. Added new log selectors queue_time and deliver_time.
3422
342314. Might have fixed a bug in maildirsizefile handling that threw up
3424 "unexpected character" debug warnings, and recalculated the data
3425 unnecessarily. In any case, I expanded the warning message to give more
3426 information.
3427
342815. Added the message "Restricted characters in address" to the statements in
3429 the default ACL that block characters like @ and % in local parts.
3430
343116. Change 71 for release 4.31 proved to be much less benign that I imagined.
3432 Three changes have been made:
3433
3434 (a) There was a serious bug; a negative response to MAIL caused the whole
3435 recipient domain to be cached as invalid, thereby blocking all messages
3436 to all local parts at the same domain, from all senders. This bug has
3437 been fixed. The domain is no longer cached after a negative response to
3438 MAIL if the sender used is not empty.
3439
3440 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3441 been restored.
3442
3443 (c) A new callout option, "use_sender" has been added for people who want
3444 the modified behaviour.
3445
3446
3447Exim version 4.31
3448-----------------
3449
3450 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3451 Larry Rosenman.
3452
3453 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3454 indeed breaks things for older releases.
3455
3456 3. Added additional logging to the case where there is a problem reading data
3457 from a filter that is running in a subprocess using a pipe, in order to
3458 try to track down a specific problem.
3459
3460 4. Testing facility fudge: when running in the test harness and attempting
3461 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3462 getting "No route to host". Convert this to a timeout.
3463
3464 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3465 warning.
3466
3467 6. Some OS don't have socklen_t but use size_t instead. This affects the
3468 fifth argument of getsockopt() amongst other things. This is now
3469 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3470 can be set for individual OS. I have set it for SunOS5, OSF1, and
3471 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3472 some earlier ones do not.
3473
3474 7. Change 4.30/15 was not doing the test caselessly.
3475
3476 8. The standard form for an IPv6 address literal was being rejected by address
3477 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3478 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3479 this, as well as the form without the "IPv6" on the front (but only when
3480 address literals are enabled, of course).
3481
3482 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3483
348410. Exim crashed if a message with an empty sender address specified by -f
3485 encountered a router with an errors_to setting. This could be provoked only
3486 by a command such as
3487
3488 exim -f "" ...
3489
3490 where an empty string was supplied; "<>" did not hit this bug.
3491
349211. Installed PCRE release 4.5.
3493
349412. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3495 remained set. It is now erased.
3496
349713. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3498 times from message ids (which are base 36 rather than the normal 62).
3499
350014. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3501 were being counted as actual protocol errors, and logged if the log
3502 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3503 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3504 and DATA following a set of rejected RCPTs do not count as protocol errors.
3505 In other words, Exim assumes they were pipelined, though this may not
3506 actually be the case. Of course, in all cases the client gets an
3507 appropriate error code.
3508
350915. If a lookup fails in an ACL condition, a message about the failure may
3510 be available; it is used if testing the ACL cannot continue, because most
3511 such messages specify what the cause of the deferral is. However, some
3512 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3513 that caused an old message to be retained and used if a later statement
3514 caused a defer, replacing the real cause of the deferral.
3515
351616. If an IP address had so many PTR records that the DNS lookup buffer
3517 was not large enough to hold them, Exim could crash while trying to process
3518 the truncated data. It now detects and logs this case.
3519
352017. Further to 4.21/58, another change has been made: if (and only if) the
3521 first line of a message (the first header line) ends with CRLF, a bare LF
3522 in a subsequent header line has a space inserted after it, so as not to
3523 terminate the header.
3524
352518. Refactoring: tidied an ugly bit of code in appendfile that copied data
3526 unnecessarily, used atoi() instead of strtol(), and didn't check the
3527 termination when getting file sizes from file names by regex.
3528
352919. Completely re-implemented the support for maildirsize files, in the light
3530 of a number of problems with the previous contributed implementation
3531 (4.30/29). In particular:
3532
3533 . If the quota is zero, the maildirsize file is maintained, but no quota is
3534 imposed.
3535
3536 . If the maildir directory does not exist, it is created before any attempt
3537 to write a maildirsize file.
3538
3539 . The quota value in the file is just a cache; if the quota is changed in
3540 the transport, the new value overrides.
3541
3542 . A regular expression is available for excluding directories from the
3543 count.
3544
354520. The autoreply transport checks the characters in options that define the
3546 message's headers; it allows continued headers, but it was checking with
3547 isspace() after an embedded newline instead of explicitly looking for a
3548 space or a tab.
3549
355021. If all the "regular" hosts to which an address was routed had passed their
3551 expiry times, and had not reached their retry times, the address was
3552 bounced, even if fallback hosts were defined. Now Exim should go on to try
3553 the fallback hosts.
3554
355522. Increased buffer sizes in the callout code from 1024 to 4096 to match the
3556 equivalent code in the SMTP transport. Some hosts send humungous responses
3557 to HELO/EHLO, more than 1024 it seems.
3558
355923. Refactoring: code in filter.c used (void *) for "any old type" but this
3560 gives compiler warnings in some environments. I've now done it "properly",
3561 using a union.
3562
356324. The replacement for inet_ntoa() that is used with gcc on IRIX systems
3564 (because of proble