Change originator_xxx fields in the daemon when it gives up root so that
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
ebeaf996 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.496 2007/03/14 12:15:56 ph10 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
b4ed4da0
PH
6Exim version 4.67
7-----------------
8
22ad45c9
MH
9MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
10 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
11 Jan Srzednicki.
12
b4ed4da0
PH
13PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
14 issue a MAIL command.
15
431b7361
PH
16PH/02 In an ACL statement such as
17
18 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
19
20 if a client was not listed at all, or was listed with a value other than
21 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
22 the condition was not true (as it should be), so access was not denied.
23 The bug was that the ! inversion was incorrectly passed on to the second
24 item. This has been fixed.
25
26PH/03 Added additional dnslists conditions == and =& which are different from
27 = and & when the dns lookup returns more than one IP address.
28
83da1223
PH
29PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
30 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
31
54fc8428
PH
32PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
33 FSYNC, which compiles an option called disable_fsync that allows for
34 bypassing fsync(). The documentation is heavily laced with warnings.
35
34c5e8dd
SC
36SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
37
bbe15da8
PH
38PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
39 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
40 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
41 including adding "make clean"; (3) Added -fPIC when compiling the test
42 dynamically loaded module, to get rid of a warning.
43
0e8a9471
MH
44MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
45 message fails, move_frozen_messages = true and ignore_bounce_errors_after
46 = 0s. The bug is otherwise harmless.
47
f0872424
PH
48PH/07 There was a bug in the dovecot authenticator such that the value of
49 $auth1 could be overwritten, and so not correctly preserved, after a
50 successful authentication. This usually meant that the value preserved by
51 the server_setid option was incorrect.
52
b01dd148
PH
53PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
54
6bf342e1
PH
55PH/09 Installed PCRE release 7.0.
56
273f34d0
PH
57PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
58 run for batched SMTP input. It is now run at the start of every message
59 in the batch. While fixing this I discovered that the process information
60 (output by running exiwhat) was not always getting set for -bs and -bS
61 input. This is fixed, and it now also says "batched" for BSMTP.
62
cf8b11a5
PH
63PH/11 Added control=no_pipelining.
64
41c7c167
PH
65PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
66 patch, slightly modified), and move the expansion of helo_data till after
67 the connection is made in the smtp transport (so it can use these
68 values).
69
9c57cbc0
PH
70PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
71
f3f065bb
PH
72PH/14 Added log_selector = +pid.
73
047bdd8c
PH
74PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
75
0ce9abe6
PH
76PH/16 Add ${if forany and ${if forall.
77
0e22dfd1
PH
78PH/17 Added dsn_from option to vary the From: line in DSNs.
79
4c590bd1
PH
80PH/18 Flush SMTP output before performing a callout, unless control =
81 no_callout_flush is set.
82
09945f1e
PH
83PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
84 was true (the default) a successful delivery failed to delete the retry
85 item, thus causing premature timeout of the address. The bug is now
86 fixed.
87
c51b8e75
PH
88PH/20 Added hosts_avoid_pipelining to the smtp transport.
89
e28326d8
PH
90PH/21 Long custom messages for fakedefer and fakereject are now split up
91 into multiline reponses in the same way that messages for "deny" and
92 other ACL rejections are.
93
75b1493f
PH
94PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
95 with slight modification.
96
7c5214ec
PH
97PH/23 Applied sieve patches from the maintainer "tracking the latest notify
98 draft, changing the syntax and factoring some duplicate code".
99
4311097e
PH
100PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
101 for deliveries of the second and subsequent messages over the same SMTP
102 connection.
103
29f89cad
PH
104PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
105 ${reduce, with only minor "tidies".
106
5e687460
SC
107SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
108
c3611384
PH
109PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
110 expansion side effects.
111
5a11a7b4
PH
112PH/27 When a message times out after an over-quota error from an Exim-imposed
113 quota, the bounce message says "mailbox is full". This message was not
114 being given when it was a system quota that was exceeded. It now should
115 be the same.
116
0e20aff9
MH
117MH/03 Made $recipients available in local_scan(). local_scan() already has
118 better access to the recipient list through recipients_list[], but
119 $recipients can be useful in postmaster-provided expansion strings.
120
ca86f471
PH
121PH/28 The $smtp_command and $smtp_command_argument variables were not correct
122 in the case of a MAIL command with additional options following the
123 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
124 were accidentally chopped off.
125
a14e5636
PH
126PH/29 SMTP synchronization checks are implemented when a command is read -
127 there is a check that no more input is waiting when there shouldn't be
128 any. However, for some commands, a delay in an ACL can mean that it is
129 some time before the response is written. In this time, more input might
130 arrive, invalidly. So now there are extra checks after an ACL has run for
131 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
132 pipelining has not been advertised.
133
ec95d1a6
PH
134PH/30 MH's patch to allow iscntrl() characters to be list separators.
135
42855d71
PH
136PH/31 Unlike :fail:, a custom message specified with :defer: was not being
137 returned in the SMTP response when smtp_return_error_details was false.
138 This has been fixed.
139
57c2c631
PH
140PH/32 Change the Dovecot authenticator to use read() and write() on the socket
141 instead of the C I/O that was originally supplied, because problems were
142 reported on Solaris.
143
58c01c94
PH
144PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
145 Exim which did not show up earlier: it was assuming that a call to
146 SSL_CTX_set_info_callback() might give an error value. In fact, there is
147 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
148 was a macro that became an assignment, so it seemed to work. This has
149 changed to a proper function call with a void return, hence the compile
150 error. Exim's code has been fixed.
151
dee5a20a
PH
152PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
153 cpus.
154
d2ee6114
PH
155PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
156
b2d5182b
PH
157PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
158
79749a79
PH
159PH/37 If a message is not accepted after it has had an id assigned (e.g.
160 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
161 "Completed" line in the log. When some messages of this type were
162 selected by exigrep, they were listed as "not completed". Others were
163 picked up by some special patterns. I have improved the selection
164 criteria to be more general.
79749a79 165
c456d9bb
PH
166PH/38 The host_find_failed option in the manualroute router can now be set
167 to "ignore", to completely ignore a host whose IP address cannot be
168 found. If all hosts are ignored, the behaviour is controlled by the new
169 host_all_ignored option.
170
cd9868ec
PH
171PH/39 In a list of hosts for manualroute, if one item (either because of multi-
172 homing or because of multiple MX records with /mx) generated more than
173 one IP address, and the following item turned out to be the local host,
174 all the secondary addresses of the first item were incorrectly removed
175 from the list, along with the local host and any following hosts (which
176 is what is supposed to happen).
177
ebeaf996
PH
178PH/40 When Exim receives a message, it writes the login name, uid, and gid of
179 whoever called Exim into the -H file. In the case of the daemon it was
180 behaving confusingly. When first started, it used values for whoever
181 started the daemon, but after a SIGHUP it used the Exim user (because it
182 calls itself on a restart). I have changed the code so that it now always
183 uses the Exim user.
184
b4ed4da0 185
5dd1517f
PH
186Exim version 4.66
187-----------------
188
189PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
190 fixed by 4.65/MH/01 (is this a record?) are fixed:
191
192 (i) An empty string was always treated as zero by the numeric comparison
193 operators. This behaviour has been restored.
194
195 (ii) It is documented that the numeric comparison operators always treat
196 their arguments as decimal numbers. This was broken in that numbers
197 starting with 0 were being interpreted as octal.
198
199 While fixing these problems I realized that there was another issue that
200 hadn't been noticed. Values of message_size_limit (both the global option
201 and the transport option) were treated as octal if they started with 0.
202 The documentation was vague. These values are now always treated as
203 decimal, and I will make that clear in the documentation.
204
205
93cfa765
TK
206Exim version 4.65
207-----------------
208
209TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
210 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
211 versions. (#438)
212
d6066548
MH
213MH/01 Don't check that the operands of numeric comparison operators are
214 integers when their expansion is in "skipping" mode (fixes bug
215 introduced by 4.64-PH/07).
216
4362ff0d
PH
217PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
218 child addresses, Exim now panics and dies. Previously, because the count
219 is held in a short int, deliveries were likely to be lost. As such a
220 large number of recipients for a single message is ridiculous
221 (performance will be very, very poor), I have chosen to impose a limit
222 rather than extend the field.
223
93cfa765 224
944e9e9c
TF
225Exim version 4.64
226-----------------
aa41d2de 227
21d74bd9
TK
228TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
229 leftover -K file (the existence of which was triggered by #402).
230 While we were at it, introduced process PID as part of the -K
231 filename. This should rule out race conditions when creating
232 these files.
233
234TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
235 processing considerably. Previous code took too long for large mails,
236 triggering a timeout which in turn triggers #401.
237
238TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
239 in the DK code in transports.c. sendfile() is not really portable,
240 hence the _LINUX specificness.
944e9e9c
TF
241
242TF/01 In the add_headers option to the mail command in an Exim filter,
243 there was a bug that Exim would claim a syntax error in any
244 header after the first one which had an odd number of characters
245 in the field name.
246
2b1c6e3a
PH
247PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
248 callout verification, Exim cached a "reject" for the entire domain. This
249 is correct for most verifications, but it is not correct for a recipient
250 verification with use_sender or use_postmaster set, because in that case
251 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
252 case of MAIL FROM:<> rejection from other early rejections (e.g.
253 rejection of HELO). When verifying a recipient using a non-null MAIL
254 address, the cache is ignored if it shows MAIL FROM:<> rejection.
255 Whatever the result of the callout, the value of the domain cache is
256 left unchanged (for any other kind of callout, getting as far as trying
257 RCPT means that the domain itself is ok).
258
1f872c80
PH
259PH/02 Tidied a number of unused variable and signed/unsigned warnings that
260 gcc 4.1.1 threw up.
261
262PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
263 manifest itself as EPIPE rather than ECONNECT. When tidying away a
264 session, the daemon ignores ECONNECT errors and logs others; it now
265 ignores EPIPE as well.
266
d203e649
PH
267PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
268 (quoted-printable decoding).
269
cc2ed8f7 270PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 271 later the small subsequent patch to fix an introduced bug.
f951fd57 272
ddfcd446
PH
273PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
274
d45b1de8
PH
275PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
276
277PH/08 An error is now given if message_size_limit is specified negative.
278
38a0a95f 279PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 280 to be given (somewhat) arbitrary names.
38a0a95f 281
a2405d83
JJ
282JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
283 in 4.64-PH/09.
284
285JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
286 miscellaneous code fixes
287
6ea85e9a
PH
288PH/10 Added the log_reject_target ACL modifier to specify where to log
289 rejections.
290
26da7e20
PH
291PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
292 hostname. This is wrong, because it relates to the incoming message (and
293 probably the interface on which it is arriving) and not to the outgoing
294 callout (which could be using a different interface). This has been
295 changed to use the value of the helo_data option from the smtp transport
296 instead - this is what is used when a message is actually being sent. If
297 there is no remote transport (possible with a router that sets up host
298 addresses), $smtp_active_hostname is used.
6ea85e9a 299
14aa5a05 300PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 301 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
302 (a) The code assumed that strncpy() returns a negative number on buffer
303 overflow, which isn't the case. Replaced with Exim's string_format()
304 function.
305 (b) There were several signed/unsigned issues. I just did the minimum
306 hacking in of casts. There is scope for a larger refactoring.
307 (c) The code used strcasecmp() which is not a standard C function.
308 Replaced with Exim's strcmpic() function.
309 (d) The code set only $1; it now sets $auth1 as well.
310 (e) A simple test gave the error "authentication client didn't specify
311 service in request". It would seem that Dovecot has changed its
312 interface. Fortunately there's a specification; I followed it and
313 changed what the client sends and it appears to be working now.
314
ff75a1f7
PH
315PH/13 Added $message_headers_raw to provide the headers without RFC 2047
316 decoding.
317
e6f6568e
PH
318PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
319 address A is aliased to B and C, where B exists and C does not. Without
320 -v the output is "A verified" because verification stops after a
321 successful redirection if more than one address is generated. However,
322 with -v the child addresses are also verified. Exim was outputting "A
323 failed to verify" and then showing the successful verification for C,
324 with its parentage. It now outputs "B failed to verify", showing B's
325 parentage before showing the successful verification of C.
326
d6f6e0dc
PH
327PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
328 look up a TXT record in a specific list after matching in a combined
329 list.
330
322050c2
PH
331PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
332 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
333 they consult the DNS. I had assumed they would set it the way they
334 wanted; and indeed my experiments on Linux seem to show that in some
335 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
336 To be on the safe side, however, I have now made the interface to
337 host_find_byname() similar to host_find_bydns(), with an argument
338 containing the DNS resolver options. The host_find_byname() function now
339 sets these options at its start, just as host_find_bydns() does. The smtp
340 transport options dns_qualify_single and dns_search_parents are passed to
341 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
342 of host_find_byname() use the default settings of RES_DEFNAMES
343 (qualify_single) but not RES_DNSRCH (search_parents).
344
08955dd3
PH
345PH/17 Applied (a modified version of) Nico Erfurth's patch to make
346 spool_read_header() do less string testing, by means of a preliminary
347 switch on the second character of optional "-foo" lines. (This is
348 overdue, caused by the large number of possibilities that now exist.
349 Originally there were few.) While I was there, I also converted the
350 str(n)cmp tests so they don't re-test the leading "-" and the first
351 character, in the hope this might squeeze out yet more improvement.
352
1eccaa59
PH
353PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
354 flag allowing group syntax was set by the header_syntax check but not
355 turned off, possible causing trouble later; (2) The flag was not being
356 set at all for the header_verify test, causing "group"-style headers to
357 be rejected. I have now set it in this case, and also caused header_
358 verify to ignore an empty address taken from a group. While doing this, I
359 came across some other cases where the code for allowing group syntax
360 while scanning a header line wasn't quite right (mostly, not resetting
361 the flag correctly in the right place). These bugs could have caused
362 trouble for malformed header lines. I hope it is now all correct.
363
602e59e5
PH
364PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
365 with the "reply" argument non-NULL. The code, however (which originally
366 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
367 but it didn't always do it. This confused somebody who was copying the
368 code for some other use. I have removed all the tests.
369
411ef850
PH
370PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
371 feature that was used to support insecure browsers during the U.S. crypto
372 embargo. It requires special client support, and Exim is probably the
373 only MTA that supported it -- and would never use it because real RSA is
374 always available. This code has been removed, because it had the bad
375 effect of slowing Exim down by computing (never used) parameters for the
376 RSA_EXPORT functionality.
377
7befa435
PH
378PH/21 On the advice of Timo Sirainen, added a check to the dovecot
379 authenticator to fail if there's a tab character in the incoming data
380 (there should never be unless someone is messing about, as it's supposed
381 to be base64-encoded). Also added, on Timo's advice, the "secured" option
382 if the connection is using TLS or if the remote IP is the same as the
383 local IP, and the "valid-client-cert option" if a client certificate has
384 been verified.
385
48da4259 386PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
387 authenticators. This can be used for authorization after authentication
388 succeeds. (In the case of plaintext, it servers for both authentication
389 and authorization.)
390
48da4259
PH
391PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
392 if any retry times were supplied.
393
d1d5595c
PH
394PH/24 Exim crashed if verify=helo was activated during an incoming -bs
395 connection, where there is no client IP address to check. In this
396 situation, the verify now always succeeds.
397
0ef732d9
PH
398PH/25 Applied John Jetmore's -Mset patch.
399
328895cc
PH
400PH/26 Added -bem to be like -Mset, but loading a message from a file.
401
fd700877
PH
402PH/27 In a string expansion for a processed (not raw) header when multiple
403 headers of the same name were present, leading whitespace was being
404 removed from all of them, but trailing whitespace was being removed only
405 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
406 before concatenation. Completely empty headers in a concatenation (as
407 before) are ignored.
fd700877 408
8dce1a6f
PH
409PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
410 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
411
17af4a17
PH
412PH/29 [Removed. This was a change that I later backed out, and forgot to
413 correct the ChangeLog entry (that I had efficiently created) before
414 committing the later change.]
f6c332bd
PH
415
416PH/30 Exim was sometimes attempting to deliver messages that had suffered
417 address errors (4xx response to RCPT) over the same connection as other
418 messages routed to the same hosts. Such deliveries are always "forced",
419 so retry times are not inspected. This resulted in far too many retries
420 for the affected addresses. The effect occurred only when there were more
421 hosts than the hosts_max_try setting in the smtp transport when it had
422 the 4xx errors. Those hosts that it had tried were not added to the list
423 of hosts for which the message was waiting, so if all were tried, there
424 was no problem. Two fixes have been applied:
425
426 (i) If there are any address or message errors in an SMTP delivery, none
427 of the hosts (tried or untried) are now added to the list of hosts
428 for which the message is waiting, so the message should not be a
429 candidate for sending over the same connection that was used for a
430 successful delivery of some other message. This seems entirely
431 reasonable: after all the message is NOT "waiting for some host".
432 This is so "obvious" that I'm not sure why it wasn't done
433 previously. Hope I haven't missed anything, but it can't do any
434 harm, as the worst effect is to miss an optimization.
435
436 (ii) If, despite (i), such a delivery is accidentally attempted, the
437 routing retry time is respected, so at least it doesn't keep
438 hammering the server.
439
c1114884
PH
440PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
441 in ${readsocket because some servers need this prod.
442
7a0743eb
PH
443PH/32 Added some extra debug output when updating a wait-xxx database.
444
0d85fa3f
PH
445PH/33 The hint "could be header name not terminated by colon", which has been
446 given for certain expansion errors for a long time, was not being given
447 for the ${if def:h_colon_omitted{... case.
448
1bf43b78
PH
449PH/34 The spec says: "With one important exception, whenever a domain list is
450 being scanned, $domain contains the subject domain." There was at least
451 one case where this was not true.
452
520de300
PH
453PH/35 The error "getsockname() failed: connection reset by peer" was being
454 written to the panic log as well as the main log, but it isn't really
455 panic-worthy as it just means the connection died rather early on. I have
456 removed the panic log writing for the ECONNRESET error when getsockname()
457 fails.
458
48c7f9e2
PH
459PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
460 runs only) independently of the message's sender address. This meant
461 that, if the 4xx error was in fact related to the sender, a different
462 message to the same recipient with a different sender could confuse
463 things. In particualar, this can happen when sending to a greylisting
464 server, but other circumstances could also provoke similar problems.
465 I have changed the default so that the retry time for these errors is now
466 based a combination of the sender and recipient addresses. This change
467 can be overridden by setting address_retry_include_sender=false in the
468 smtp transport.
469
99ea1c86
PH
470PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
471 remote server are returned as part of bounce messages. This was not
472 happening for LMTP over a pipe (the lmtp transport), but now it is the
473 same for both kinds of LMTP.
474
a2042e78
PH
475PH/38 Despite being documented as not happening, Exim was rewriting addresses
476 in header lines that were in fact CNAMEs. This is no longer the case.
477
4fbcfc2e
PH
478PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
479 and queue runs started by the daemon processed all messages. This has
480 been fixed so that -R and -S can now usefully be given with -q<time>.
481
aa41d2de
PH
482PH/40 Import PCRE release 6.7 (fixes some bugs).
483
af561417
PH
484PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
485
3cc66b45
PH
486PH/42 Give an error if -q is specified more than once.
487
194cc0e4
PH
488PH/43 Renamed the variables $interface_address and $interface_port as
489 $received_ip_address and $received_port, to make it clear that these
490 values apply to message reception, and not to the outgoing interface when
491 a message is delivered. (The old names remain recognized, of course.)
492
a401ddaa
PH
493PH/44 There was no timeout on the connect() call when using a Unix domain
494 socket in the ${readsocket expansion. There now is.
495
4e88a19f
PH
496PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
497 be meaningful with "accept".
498
d7d7b289
SC
499SC/01 Eximstats V1.43
500 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
501
502SC/02 Eximstats V1.44
503 Use a glob alias rather than an array ref in the generated
504 parser. This improves both readability and performance.
505
506SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
507 Collect SpamAssassin and rejection statistics.
508 Don't display local sender or destination tables unless
509 there is data to show.
510 Added average volumes into the top table text output.
511
512SC/04 Eximstats V1.46
513 Collect data on the number of addresses (recipients)
514 as well as the number of messages.
515
516SC/05 Eximstats V1.47
517 Added 'Message too big' to the list of mail rejection
518 reasons (thanks to Marco Gaiarin).
519
520SC/06 Eximstats V1.48
521 Mainlog lines which have GMT offsets and are too short to
522 have a flag are now skipped.
523
524SC/07 Eximstats V1.49 (Alain Williams)
525 Added the -emptyok flag.
526
527SC/08 Eximstats V1.50
528 Fixes for obtaining the IP address from reject messages.
529
0ea2a468
JJ
530JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
531 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
532 whitesspace changes from 4.64-PH/27
533
534JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
535 match 4.64-PH/13
536
537JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
538 are found, allow negative numbers in numeric criteria)
539
540JJ/06 exipick.20061117.2, added new $message_body_missing variable
541
542JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
543 to match changes made in 4.64-PH/43
544
8a10f5a4
PH
545PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
546
30e18802
PH
547PH/47 Put in an explicit test for a DNS lookup of an address record where the
548 "domain" is actually an IP address, and force a failure. This locks out
549 those revolvers/nameservers that support "A-for-A" lookups, in
550 contravention of the specifications.
551
55728a4f
PH
552PH/48 When a host name was looked up from an IP address, and the subsequent
553 forward lookup of the name timed out, the host name was left in
554 $sender_host_name, contrary to the specification.
d7d7b289 555
d7837193
PH
556PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
557 restricted to single-key lookups, Exim was not diagnosing an error if
558 * or *@ was used with a query-style lookup.
559
87054a31
PH
560PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
561
ea2c01d2
MH
562MH/01 local_scan ABI version incremented to 1.1. It should have been updated
563 long ago, but noone interested enough thought of it. Let's just say that
564 the "1.1" means that there are some new functions that weren't there at
565 some point in the past.
566
e4fa6968
PH
567PH/51 Error processing for expansion failure of helo_data from an smtp
568 transport during callout processing was broken.
569
56f5d9bd
PH
570PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
571 tested/used via the -bh/-bhc/-bs options.
572
922e1c28
PH
573PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
574 bug, fixed in subsequent PCRE releases).
575
21eb6e72
PH
576PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
577 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
578
a0540757
PH
579PH/55 Check for a ridiculously long file name in exim_dbmbuild.
580
944e9e9c 581
478be7b0
SC
582Exim version 4.63
583-----------------
584
585SC/01 Use a glob alias rather than an array ref in eximstats generated
586 parser. This improves both readability and performance.
587
588SC/02 Collect SpamAssassin and rejection statistics in eximstats.
589 Don't display local sender or destination tables in eximstats unless
590 there is data to show.
591 Added average volumes into the eximstats top table text output.
592
593SC/03 Collect data on the number of addresses (recipients) as well
594 as the number of messages in eximstats.
595
2b965a65
TF
596TF/01 Correct an error in the documentation for the redirect router. Exim
597 does (usually) call initgroups() when daemonizing.
478be7b0 598
45b91596
PH
599TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
600 with consistent privilege compared to when running as a daemon.
478be7b0 601
c59f5781
TF
602TF/03 Note in the spec that $authenticated_id is not set for local
603 submissions from trusted users.
604
90fc3069
TF
605TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
606 Thanks to Dean Brooks <dean@iglou.com> for the patch.
607
6083aca0
TF
608TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
609 by adding some example configuration directives to the default
610 configuration file. A little bit of work is required to uncomment the
611 directives and define how usernames and passwords are checked, but
612 there is now a framework to start from.
613
765b530f
PH
614PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
615 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
616 without this. I don't know how relevant this is to other LDAP libraries.
617
4e167a8c
PH
618PH/02 Add the verb name to the "unknown ACL verb" error.
619
4608d683
PH
620PH/03 Magnus Holmgren's patch for filter_prepend_home.
621
b8dc3e4a
PH
622PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
623
5418e93b
PH
624PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
625 directory not expanded when it should be if an expanded home directory
626 was set for the address (which is overridden by the transport).
627
b4a9bda2
PH
628PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
629 libradius.
630
45b91596
PH
631PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
632 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
633 because it is too late at that time, and has no effect.
634
5547e2c5
PH
635PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
636 security issue with \' (bugzilla #107). I could not use the
637 PQescapeStringConn() function, because it needs a PGconn value as one of
638 its arguments.
639
dbcef0ea
PH
640PH/08 When testing addresses using -bt, indicate those final addresses that
641 are duplicates that would not cause an additional delivery. At least one
642 person was confused, thinking that -bt output corresponded to deliveries.
643 (Suppressing duplicates isn't a good idea as you lose the information
644 about possibly different redirections that led to the duplicates.)
645
25257489
PH
646PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
647 systems where poll() doesn't work, in particular OS X.
648
c816d124
PH
649PH/10 Added more information to debugging output for retry time not reached.
650
a9ccd69a
PH
651PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
652 operations in malware.c.
653
75fa1910
PH
654PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
655 signatures.
656
a7d7aa58
PH
657PH/13 If write_rejectlog was set false when logging was sent to syslog with
658 syslog_duplication set false, log lines that would normally be written
659 both the the main log and to the reject log were not written to syslog at
660 all.
661
42119b09
PH
662PH/14 In the default configuration, change the use of "message" in ACL warn
663 statements to "add_header".
664
41609df5
PH
665PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
666 not followed by a command (e.g. "seen endif").
667
a5bd321b
PH
668PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
669 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
670 latter.
671
e85a7ad5 672PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
673 so that it is now:
674
e85a7ad5
PH
675 ${if or { \
676 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
677 { match{$h_precedence:}{(?i)bulk|list|junk} } \
678 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
679 }{no}{yes}}
680
e85a7ad5
PH
681 The Auto-Submitted: and various List- headers are standardised, whereas I
682 don't think Precedence: ever was.
5dff5817 683
d8fe1c03
PH
684PH/18 Refactored debugging code in route_finduser() to show more information,
685 in particular, the error code if getpwnam() issues one.
686
16282d2b
PH
687PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
688 This is apparently needed in addition to the PH/07 change above to avoid
689 any possible encoding problems.
690
35d40a98
PH
691PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
692 but not after initializing Perl.
693
034d99ab
PH
694PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
695 output them only if debugging. By default they are written stderr,
696 apparently, which is not desirable.
697
6ec97b1b
PH
698PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
699 queries.
700
e22ca4ac
JJ
701JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
702 --not options
703
704JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
705
33d73e3b
PH
706PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
707 authenticated or an ident call has been made. Suppress the default
708 values for $authenticated_id and $authenticated_sender (but permit -oMai
709 and -oMas) when testing with -bh.
710
9ecb03f3
PH
711PH/24 Re-jigged the order of the tests in the default configuration so that the
712 tests for valid domains and recipients precede the DNS black list and CSA
713 tests, on the grounds that those ones are more expensive.
714
084efe8d
PH
715PH/25 Exim was not testing for a space following SMTP commands such as EHLO
716 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
717 This bug exists in every version of Exim that I still have, right back to
718 0.12.
719
366fc9f0
PH
720PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
721 However, an attempt to turn on case-sensitivity in a regex key by
722 including (?-i) didn't work because the subject string was already
723 lowercased, and the effects were non-intuitive. It turns out that a
724 one-line patch can be used to allow (?-i) to work as expected.
725
c59f5781 726
c887c79e
TF
727Exim version 4.62
728-----------------
729
730TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
731 other effects) broke the use of negated acl sub-conditions.
732
1cce3af8
PH
733PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
734 patch).
735
afb3eaaf
PH
736PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
737 "Deny" causes Exim to reject the incoming connection with a 554 error.
738 Unfortunately, if there is a major crisis, such as a disk failure,
739 tcp-wrappers gives "deny", whereas what one would like would be some
740 kind of temporary error. A kludge has been added to help with this.
741 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
742 554 error is used if errno is still zero or contains ENOENT (which occurs
743 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
744 451 error is used.
745
e173618b
PH
746PH/03 Add -lutil to the default FreeBSD LIBS setting.
747
dd16e114
PH
748PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
749 errors. Otherwise a message that provokes a temporary error (when other
750 messages do not) can cause a whole host to time out.
751
f7fd3850
PH
752PH/05 Batch deliveries by appendfile and pipe transports did not work when the
753 addresses were routed directly to files or pipes from a redirect router.
754 File deliveries just didn't batch; pipe deliveries might have suffered
755 odd errors.
756
d87df92c
PH
757PH/06 A failure to get a lock for a hints database would erroneously always say
758 "Failed to get write lock", even when it was really a read lock.
759
7e9f683d
PH
760PH/07 The appendfile transport was creating MBX lock files with a fixed mode
761 of 0600. This has been changed to use the value of the lockfile_mode
762 option (which defaults to 0600).
763
bfad5236
PH
764PH/08 Applied small patch from the Sieve maintainer.
765
01c490df
PH
766PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
767 folder from quota calculations, a direct delivery into this folder messed
768 up the contents of the maildirsize file. This was because the regex was
769 used only to exclude .Trash (or whatever) when the size of the mailbox
770 was calculated. There was no check that a delivery was happening into an
771 excluded directory. This bug has been fixed by ignoring all quota
772 processing for deliveries into excluded directories.
773
d6629cdc
PH
774PH/10 Added the maildirfolder_create_regex option to appendfile.
775
1cce3af8 776
214e2000
PH
777Exim version 4.61
778-----------------
779
780PH/01 The code for finding all the local interface addresses on a FreeBSD
781 system running IPv6 was broken. This may well have applied to all BSD
782 systems, as well as to others that have similar system calls. The broken
783 code found IPv4 interfaces correctly, but gave incorrect values for the
784 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
785 that it would not match correctly against @[] and not recognize the IPv6
786 addresses as local.
787
f9daeae0
PH
788PH/02 The ipliteral router was not recognizing addresses of the form user@
789 [ipv6:....] because it didn't know about the "ipv6:" prefix.
790
7e66e54d
PH
791PH/03 Added disable_ipv6.
792
c8ea1597
PH
793PH/04 Changed $reply_address to use the raw form of the headers instead of the
794 decoded form, because it is most often used to construct To: headers
795 lines in autoreplies, and the decoded form may well be syntactically
796 invalid. However, $reply_address has leading white space removed, and all
797 newlines turned into spaces so that the autoreply transport does not
798 grumble.
799
911f6fde
PH
800PH/05 If group was specified without a user on a router, and no group or user
801 was specified on a transport, the group from the router was ignored.
802
47ca6d6c
PH
803PH/06 Increased the number of ACL variables to 20 of each type, and arranged
804 for visible compile-time settings that can be used to change these
805 numbers, for those that want even more. Backwards compatibility with old
806 spool files has been maintained. However, going back to a previous Exim
807 release will lost any variables that are in spool files.
808
ed0e9820
PH
809PH/07 Two small changes when running in the test harness: increase delay when
810 passing a TCP/IP connection to a new process, in case the original
811 process has to generate a bounce, and remove special handling of
812 127.0.0.2 (sic), which is no longer necessary.
813
eff37e47
PH
814PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
815 be the same on different OS.
816
1921d2ea
PH
817PH/09 Moved a debug statement in filter processing to avoid a race problem when
818 testing.
819
b3f69ca8
JJ
820JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
821 whether --show-vars was specified or not
822
823JJ/02 exipick: Added support for new ACL variable spool format introduced
824 in 4.61-PH/06
825
424a1c63
PH
826PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
827 syntactically invalid From: or Reply-to: line, and a filter used this to
828 generate an autoreply, and therefore failed to obtain an address for the
829 autoreply, Exim could try to deliver to a non-existent relative file
830 name, causing unrelated and misleading errors. What now happens is that
831 it logs this as a hard delivery error, but does not attempt to create a
832 bounce message.
833
7a100415
PH
834PH/11 The exinext utility has a -C option for testing purposes, but although
835 the given file was scanned by exinext itself; it wasn't being passed on
836 when Exim was called.
837
19b9dc85
PH
838PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
839 an end-of-file indication when reading a command response.
840
309bd837
PH
841PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
842 compiled. In many other places in Exim, IPv6 addresses are always
843 recognized, so I have changed this. It also means that IPv4 domain
844 literals of the form [IPV4:n.n.n.n] are now always recognized.
845
59e82a2a
PH
846PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
847 used if the router is not running as root, for example, when verifying at
848 ACL time, or when using -bh. The debugging output from this situation was
849 non-existent - all you got was a failure to exec. I have made two
850 changes:
851
852 (a) Failures to set uid/gid, the current directory, or a process leader
853 in a subprocess such as that created by queryprogram now generate
854 suitable debugging ouput when -d is set.
855
856 (b) The queryprogram router detects when it is not running as root,
857 outputs suitable debugging information if -d is set, and then runs
858 the subprocess without attempting to change uid/gid.
859
9edc04ce
PH
860PH/15 Minor change to Makefile for building test_host (undocumented testing
861 feature).
862
1349e1e5
PH
863PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
864 additional section of a DNS packet that returns MX or SRV records.
865 Instead, it always explicitly searches for A/AAAA records. This avoids
866 major problems that occur when a DNS server includes only records of one
867 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
868 fixed another bug: if SRV records were looked up and the corresponding
869 address records were *not* found in the additional section, the port
870 values from the SRV records were lost.
871
ea49d0e1
PH
872PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
873 using the correct key (the original address) when searching the retry
874 rules in order to find which one to use for generating the retry hint.
875
064a94c9
PH
876PH/18 If quota_warn_message contains a From: header, Exim now refrains from
877 adding the default one. Similarly, if it contains a Reply-To: header, the
878 errors_reply_to option, if set, is not used.
879
727071f8
PH
880PH/19 When calculating a retry time, Exim used to measure the "time since
881 failure" by looking at the "first failed" field in the retry record. Now
882 it does not use this if it is later than than the arrival time of the
883 message. Instead it uses the arrival time. This makes for better
884 behaviour in cases where some deliveries succeed, thus re-setting the
885 "first failed" field. An example is a quota failure for a huge message
886 when small messages continue to be delivered. Without this change, the
887 "time since failure" will always be short, possible causing more frequent
888 delivery attempts for the huge message than are intended.
dd16e114 889 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 890
f78eb7c6
PH
891PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
892 $1, $2, $3) because the numerical variables can be reset during some
893 expansion items (e.g. "match"), thereby losing the authentication data.
894
21c28500
PH
895PH/21 Make -bV show the size of off_t variables so that the test suite can
896 decide whether to run tests for quotas > 2G.
897
898PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
899 mailbox_size, and mailbox_filecount in the appendfile transport. If a
900 filecount value is greater than 2G or if a quota value is greater than 2G
901 on a system where the size of off_t is not greater than 4, a panic error
902 is given.
903
1688f43b
PH
904PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
905 never match. The debug and -bh output now contains an explicit error
906 message indicating a malformed IPv4 address or mask.
907
908PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
909 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
910 PH/23 above applies.
911
9675b384
PH
912PH/25 Do not write to syslog when running in the test harness. The only
913 occasion when this arises is a failure to open the main or panic logs
914 (for which there is an explicit test).
915
6a3f1455
PH
916PH/26 Added the /no_tell option to "control=freeze".
917
dac79d3e
PH
918PH/27 If a host name lookup failed very early in a connection, for example, if
919 the IP address matched host_lookup and the reverse lookup yielded a name
920 that did not have a forward lookup, an error message of the form "no IP
921 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
922 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 923
5977a0b3
PH
924PH/28 An enabling patch from MH: add new function child_open_exim2() which
925 allows the sender and the authenticated sender to be set when
926 submitting a message from within Exim. Since child_open_exim() is
927 documented for local_scan(), the new function should be too.
928
c91535f3
PH
929PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
930 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
931 results in an empty string is now treated as unset.
932
0d46a8c8
PH
933PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
934
278c6e6c
PH
935PH/31 Added sender_verify_fail logging option.
936
2cbb4081
PH
937PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
938 needed by RFC 822 but not by RFC 2822 was commented out. I have now
939 tidied the source and removed it altogether.
940
3eef829e
PH
941PH/33 When a queue run was abandoned because the load average was too high, a
942 log line was always written; now it is written only if the queue_run log
943 selector is set. In addition, the log line for abandonment now contains
944 information about the queue run such as the pid. This is always present
945 in "start" and "stop" lines but was omitted from the "abandon" line.
946
1ab95fa6
PH
947PH/34 Omit spaces between a header name and the colon in the error message that
948 is given when verify = headers_syntax fails (if there are lots of them,
949 the message gets confusing).
950
230205fc
PH
951PH/35 Change the default for dns_check_names_pattern to allow slashes within
952 names, as there are now some PTR records that contain slashes. This check
953 is only to protect against broken name servers that fall over on strange
954 characters, so the fact that it applies to all lookups doesn't matter.
955
75e0e026
PH
956PH/36 Now that the new test suite is complete, we can remove some of the
957 special code in Exim that was needed for the old test suite. For example,
958 sorting DNS records because real resolvers return them in an arbitrary
959 order. The new test suite's fake resolver always returns records in the
960 same order.
961
962PH/37 When running in the test harness, use -odi for submitted messages (e.g.
963 bounces) except when queue_only is set, to avoid logging races between
964 the different processes.
965
145396a6
PH
966PH/38 Panic-die if .include specifies a non-absolute path.
967
3cd34f13
PH
968PH/39 A tweak to the "H" retry rule from its user.
969
11121d3d
JJ
970JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
971 a label. They prevented compilation on older perls.
972
973JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
974 a warning to be raised on newish perls.
975
976JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
977 on queue. Changes to match documented behaviour of showing count of
978 messages matching specified criteria.
979
8def5aaf
PH
980PH/40 Changed the default ident timeout from 30s to 5s.
981
929ba01c
PH
982PH/41 Added support for the use of login_cap features, on those BSD systems
983 that have them, for controlling the resources used by pipe deliveries.
984
2632889e
PH
985PH/42 The content-scanning code uses fopen() to create files in which to put
986 message data. Previously it was not paying any attention to the mode of
987 the files. Exim runs with umask(0) because the rest of the code creates
988 files with open(), and sets the required mode explicitly. Thus, these
989 files were ending up world-writeable. This was not a big issue, because,
990 being within the spool directory, they were not world-accessible. I have
991 created a function called modefopen, which takes an additional mode
992 argument. It sets umask(777), creates the file, chmods it to the required
993 mode, then resets the umask. All the relevant calls to fopen() in the
994 content scanning code have been changed to use this function.
995
944a9c55
PH
996PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
997 to 24 hours. This avoids potential overflow problems when processing G
998 and H retry rules. I suspect nobody ever tinkers with this value.
999
4a23603b
PH
1000PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1001
4730f942
PH
1002PH/45 When the plaintext authenticator is running as a client, the server's
1003 challenges are checked to ensure they are valid base64 strings. By
1004 default, the authentication attempt is cancelled if an invalid string is
1005 received. Setting client_ignore_invalid_base64 true ignores these errors.
1006 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1007 they are received. Thus, the responses can be made to depend on the
1008 challenges. If an invalid string is ignored, an empty string is placed in
1009 the variable.
1010
30dba1e6
PH
1011PH/46 Messages that are created by the autoreply transport now contains a
1012 References: header, in accordance with RFCs 2822 and 3834.
1013
382afc6b
PH
1014PH/47 Added authenticated_sender_force to the smtp transport.
1015
a86229cf
PH
1016PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1017
50c99ba6
PH
1018PH/49 Installed latest patch from the Sieve maintainer.
1019
d35e429d
PH
1020PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1021 was also set, the appendfile transport was unnecessarily scanning a
1022 directory of message files (e.g. for maildir delivery) to find the count
1023 of files (along with the size), even though it did not need this
1024 information. It now does the scan only if it needs to find either the
1025 size of the count of files.
1026
f90d018c
PH
1027PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1028
75def545
PH
1029PH/52 Two bugs concerned with error handling when the smtp transport is
1030 used in LMTP mode:
1031
1032 (i) Exim was not creating retry information for temporary errors given
1033 for individual recipients after the DATA command when the smtp transport
1034 was used in LMTP mode. This meant that they could be retried too
1035 frequently, and not timed out correctly.
1036
1037 (ii) Exim was setting the flag that allows error details to be returned
1038 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1039 recipients that were returned after the DATA command.
1040
1041PH/53 This is related to PH/52, but is more general: for any failing address,
1042 when detailed error information was permitted to be returned to the
1043 sender, but the error was temporary, then after the final timeout, only
1044 "retry timeout exceeded" was returned. Now it returns the full error as
1045 well as "retry timeout exceeded".
1046
c46782ef
PH
1047PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1048 do this, and (what is worse) MTAs that accept it.
1049
71fafd95
PH
1050PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1051 will now be deprecated.
1052
2c5db4fd
PH
1053PH/56 New os.c-cygwin from the Cygwin maintainer.
1054
9cf6b11a
JJ
1055JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1056 formats (previously only available in exim formats via -bpr, -bpru,
1057 and -bpra. Now also available in native and exiqgrep formats)
1058
1059JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1060 with very large, slow to parse queues
1061
1062JJ/08 exipick: added ! as generic prefix to negate any criteria format
1063
1064JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1065
898d150f
PH
1066PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1067 responses to authentication challenges, though it was showing the
1068 challenges; (ii) I've removed the CR characters from the debug output for
1069 SMTP output lines.
1070
46218253
PH
1071PH/58 Allow for the insertion of a newline as well as a space when a string
1072 is turned into more than one encoded-word during RFC 2047 encoding. The
1073 Sieve code now uses this.
1074
e97957bc
PH
1075PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1076 data_4xx, lost_connection, tls_required.
1077
81e509d7
PH
1078PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1079 message was being sent as an SMTP response.
1080
3d240ff7
PH
1081PH/61 Add -l and -k options to exicyclog.
1082
b37c4101
PH
1083PH/62 When verifying, if an address was redirected to one new address, so that
1084 verification continued, and the new address failed or deferred after
1085 having set something in $address_data, the value of $address_data was not
1086 passed back to the ACL. This was different to the case when no
1087 redirection occurred. The value is now passed back in both cases.
1088
79378e0f
PH
1089PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1090 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1091 use login_cap.h, so on its own it isn't the distinguishing feature. The
1092 new name refers directly to the setclassresources() function.
1093
e49c7bb4
PH
1094PH/65 Added configuration files for NetBSD3.
1095
d114ec46
PH
1096PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1097
f3d7df6c
PH
1098PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1099 is preferred over IPv4.
1100
715ab376
PH
1101PH/68 The bounce_return_message and bounce_return_body options were not being
1102 honoured for bounces generated during the reception of non-SMTP messages.
1103 In particular, this applied to messages rejected by the ACL. This bug has
1104 been fixed. However, if bounce_return_message is true and bounce_return_
1105 body is false, the headers that are returned for a non-SMTP message
1106 include only those that have been read before the error was detected.
1107 (In the case of an ACL rejection, they have all been read.)
1108
6b31b150
PH
1109PH/69 The HTML version of the specification is now built in a directory called
1110 spec_html instead of spec.html, because the latter looks like a path with
1111 a MIME-type, and this confuses some software.
1112
1113PH/70 Catch two compiler warnings in sieve.c.
1114
d515a917
PH
1115PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1116 function verify_get_ident() calls ip_connect() to connect a socket, but
1117 if the "connect()" function timed out, ip_connect() used to close the
1118 socket. However, verify_get_ident() also closes the socket later, and in
1119 between Exim writes to the log, which may get opened at this point. When
1120 the socket was closed in ip_connect(), the log could get the same file
1121 descriptor number as the socket. This naturally causes chaos. The fix is
1122 not to close the socket in ip_connect(); the socket should be closed by
1123 the function that creates it. There was only one place in the code where
1124 this was missing, in the iplookup router, which I don't think anybody now
1125 uses, but I've fixed it anyway.
1126
9b8fadde
PH
1127PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1128 well as to direct DNS lookups. Otherwise the handling of names in host
1129 lists is inconsistent and therefore confusing.
1130
214e2000 1131
5de37277
PH
1132Exim version 4.60
1133-----------------
1134
cc38ddbf
PH
1135PH/01 Two changes to the default runtime configuration:
1136
1137 (1) Move the checks for relay_from_hosts and authenticated clients from
1138 after to before the (commented out) DNS black list checks.
1139
1140 (2) Add control=submission to the relay_from_hosts and authenticated
1141 clients checks, on the grounds that messages accepted by these
1142 statements are most likely to be submissions.
5de37277 1143
72fdd6ae
PH
1144PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1145
1146 (1) Generate an error if the third argument for the ${prvs expansion is
1147 not a single digit.
1148
1149 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1150 string.
1151
1152 (3) Reset the variables that are obtained from the first argument of
1153 ${prvscheck and used in the second argument before leaving the code,
1154 because their memory is reclaimed, so using them afterwards may do
1155 silly things.
1156
1157 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1158 one (it's much easier than Tom thought :-).
1159
1160 (5) Because of (4), we can now allow for the use of $prvscheck_result
1161 inside the third argument.
cb9328de 1162
cb741023
PH
1163PH/03 For some reason, the default setting of PATH when running a command from
1164 a pipe transport was just "/usr/bin". I have changed it to
1165 "/bin:/usr/bin".
1166
f174f16e
PH
1167PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1168 anything to be listed in the output from -bV.
b2f5a032 1169
c25242d7
PH
1170PH/05 When a filter generated an autoreply, the entire To: header line was
1171 quoted in the delivery log line, like this:
1172
1173 => >A.N.Other <ano@some.domain> <original@ddress> ...
1174
1175 This has been changed so that it extracts the operative address. There
1176 may be more than one such address. If so, they are comma-separated, like
1177 this:
1178
1179 => >ano@some.domain,ona@other.domain <original@ddress> ...
1180
82c19f95
PH
1181PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1182 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1183 not being looked up in the rDNS to get a host name, Exim was showing the
1184 IP address twice in Received: lines, even though the IP addresses were
1185 identical. For example:
1186
1187 Received: from [1.2.3.4] (helo=[1.2.3.4])
1188
1189 However, if the real host name was known, it was omitting the HELO data
1190 if it matched the actual IP address. This has been tidied up so that it
1191 doesn't show the same IP address twice.
1192
d7ffbc12
PH
1193PH/07 When both +timestamp and +memory debugging was on, the value given by
1194 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1195 called by the debug printing, thereby overwriting the timestamp buffer.
1196 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1197
9f526266
PH
1198PH/08 When the original message was included in an autoreply transport, it
1199 always said "this is a copy of the message, including all the headers",
1200 even if body_only or headers_only was set. It now gives an appropriate
1201 message.
1202
87fcc8b9
PH
1203PH/09 Applied a patch from the Sieve maintainer which:
1204
1205 o fixes some comments
1206 o adds the (disabled) notify extension core
1207 o adds some debug output for the result of if/elsif tests
1208 o points to the current vacation draft in the documentation
1209 and documents the missing references header update
1210
1211 and most important:
1212
1213 o fixes a bug in processing the envelope test (when testing
1214 multiple envelope elements, the last element determinted the
1215 result)
1216
456682f5
PH
1217PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1218 Electronic Mail") by including:
1219
1220 Auto-submitted: auto-generated
1221
1222 in the messages that it generates (bounce messages and others, such as
1223 warnings). In the case of bounce messages for non-SMTP mesages, there was
1224 also a typo: it was using "Auto_submitted" (underscore instead of
1225 hyphen). Since every message generated by Exim is necessarily in response
1226 to another message, thes have all been changed to:
1227
1228 Auto-Submitted: auto-replied
1229
1230 in accordance with these statements in the RFC:
1231
1232 The auto-replied keyword:
1233
1234 - SHOULD be used on messages sent in direct response to another
1235 message by an automatic process,
1236
1237 - MUST NOT be used on manually-generated messages,
1238
1239 - MAY be used on Delivery Status Notifications (DSNs) and Message
1240 Disposition Notifications (MDNs),
1241
1242 - MUST NOT be used on messages generated by automatic or periodic
1243 processes, except for messages which are automatic responses to
1244 other messages.
1245
3e46c1aa
PH
1246PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1247 to the default Received: header definition.
456682f5 1248
49826d12
PH
1249PH/12 Added log selector acl_warn_skipped (default on).
1250
eba0c039
PH
1251PH/13 After a successful wildlsearch lookup, discard the values of numeric
1252 variables because (a) they are in the wrong storage pool and (b) even if
1253 they were copied, it wouldn't work properly because of the caching.
1254
a0d6ba8a
PH
1255PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1256 checking when decoding. Apparently there are clients that generate
1257 overlong encoded strings. Why am I not surprised?
1258
f0917727
PH
1259PH/15 If the first argument of "${if match_address" was not empty, but did not
1260 contain an "@" character, Exim crashed. Now it writes a panic log message
1261 and treats the condition as false.
1262
096fee00
PH
1263PH/16 In autoreply, treat an empty string for "once" the same as unset.
1264
024bd3c2
PH
1265PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1266 extension "envelope-auth". The code is finished and in agreement with
1267 other implementations, but there is no documentation so far and in fact,
1268 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1269 not changing the active code.
1270
1271 Print executed "if" and "elsif" statements when debugging is used. This
1272 helps a great deal to understand what a filter does.
1273
1274 Document more things not specified clearly in RFC3028. I had all this
1275 sorted out, when out of a sudden new issues came to my mind. Oops."
1276
df199fec
PH
1277PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1278 (Bugzilla #53).
1279
d27f1df3
PH
1280PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1281 canonical form (as documented). However, after a host name lookup from
1282 the IP address, check_host() was doing a simple string comparison with
1283 addresses acquired from the DNS when checking that the found name did
1284 have the original IP as one of its addresses. Since any found IPv6
1285 addresses are likely to be in abbreviated form, the comparison could
1286 fail. Luckily, there already exists a function for doing the comparison
1287 by converting both addresses to binary, so now that is used instead of
1288 the text comparison.
1289
96776534
PH
1290PH/20 There was another similar case to PH/19, when a complete host name was
1291 given in a host list; looking up its IP address could give an abbreviated
1292 form, whereas the current host's name might or might not be abbreviated.
1293 The same fix has been applied.
1294
5de37277 1295
9a799bc0
PH
1296Exim version 4.54
1297-----------------
1298
1299PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1300 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1301 It now does.
1302
99a4b039
PH
1303PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1304 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1305
1306PH/03 Typo: missing ".o" in src/pcre/Makefile.
1307
4b233853
PH
1308PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1309 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1310 Also, for "Auto-Submitted", treat anything other than "no" as
1311 non-personal, in accordance with RFC 3834. (Previously it treated
1312 anything starting "auto-" as non-personal.)
1313
8857ccfd
PH
1314TF/01 The control=submission/name=... option had a problem with syntax
1315 errors if the name included a slash character. The /name= option
1316 now slurps the rest of the string, so it can include any characters
1317 but it must come last in the list of options (after /sender_retain
1318 or /domain=).
1319
433a2980
PH
1320PH/05 Some modifications to the interface to the fake nameserver for the new
1321 testing suite.
1322
3e46c1aa 1323
9a799bc0 1324
e3a311ba
TK
1325Exim version 4.53
1326-----------------
1327
1328TK/01 Added the "success_on_redirect" address verification option. See
1329 NewStuff for rationale and an example.
1330
13b685f9
PH
1331PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1332
395ff96d
PH
1333PH/02 Patch to exigrep to allow it to work on syslog lines.
1334
5b68f6e4
PH
1335PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1336 fread() to skip over the body file's header line, because in Cygwin the
1337 header line is locked and is inaccessible.
1338
1ab52c69
PH
1339PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1340 co-exist for some time) to make it clear that it is the Exim ID that is
1341 referenced, not the Message-ID: header line.
1342
b07e6aa3
PH
1343PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1344 string_format() function, because snprintf() does not exist on all
1345 operating systems.
1346
254e032f
PH
1347PH/06 The use of forbid_filter_existstest now also locks out the use of the
1348 ${stat: expansion item.
1349
3af76a81
PH
1350PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1351 protocol synchronization error", to keep the pedants happy.
1352
2548ba04
PH
1353PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1354 well as for IRIX systems, when gcc is being used. See the host.c source
1355 file for comments.
1356
b6c6011d
PH
1357PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1358
cf39cf57
PH
1359PH/10 Named domain lists were not working if used in a queue_smtp_domains
1360 setting.
1361
f1513293
PH
1362PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1363 transport and to the smtp transport in LMTP mode.
1364
727549a4
PH
1365TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1366
af46795e
PH
1367PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1368 run a filter in a subprocess. This could lead to confusion in subsequent
1369 lookups in the parent process. There should also be a search_tidyup() at
1370 the end of the subprocess.
1371
d7b47fd0
PH
1372PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1373 only if the host matched helo_try_verify_hosts, which caused the
1374 verification to occur when the EHLO/HELO command was issued. The ACL just
1375 tested the remembered result. Now, if a previous verification attempt has
1376 not happened, "verify = helo" does it there and then.
1377
ee744174
JJ
1378JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1379
b582ab87
PH
1380TK/03 Fix log output including CR from clamd.
1381
41a13e0a
PH
1382PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1383 exist provoked a memory error which could cause a segfault.
1384
f625cc5a
PH
1385PH/15 Installed PCRE 6.2
1386
1387PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1388
21f7af35
PH
1389PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1390 of the problem. Specifically, suggested +O2 rather than +O1 for the
1391 HP-UX compiler.
1392
31480e42
PH
1393PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1394
2d280592
PH
1395PH/20 If a delivery was routed to a non-standard port by means of an SRV
1396 record, the port was not correctly logged when the outgoing_port log
1397 selector was set (it logged the transort's default port).
1398
7cd1141b
PH
1399PH/21 Added support for host-specific ports to manualroute, queryprogram,
1400 fallback_hosts, and "hosts" in the smtp transport.
1401
1402PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1403 host errors such as "Connection refused".
1404
750af86e
PH
1405PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1406 authentication with radiusclient 0.4.9:
1407
1408 - Error returned from rc_read_config was caught wrongly
1409 - Username/password not passed on to radius server due to wrong length.
1410
1411 The presumption is that some radiusclient API changes for 4.51/PH/17
1412 were not taken care of correctly. The code is still untested by me (my
1413 Linux distribution still has 0.3.2 of radiusclient), but it was
1414 contributed by a Radius user.
1415
1416PH/24 When doing a callout, the value of $domain wasn't set correctly when
1417 expanding the "port" option of the smtp transport.
1418
4304270b
TK
1419TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1420 while reading a MIME header. Thanks to Tom Hughes for a patch.
1421
750af86e
PH
1422PH/24 Include config.h inside local_scan.h so that configuration settings are
1423 available.
1424
64ffc24f
PH
1425PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1426 that in an ACL for RCPT (for example), you can examine exactly what was
1427 received.
1428
5dd9625b
PH
1429PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1430 commands, but it was not correctly comparing the address with the actual
1431 client host address. Thus, it would show the EHLO address in Received:
1432 header lines when this was not necessary.
1433
5591031b
PH
1434PH/27 Added the % operator to ${eval:}.
1435
ba18e66a
PH
1436PH/28 Exim tries to create and chdir to its spool directory when it starts;
1437 it should be ignoring failures (because with -C, for example, it has lost
1438 privilege). It wasn't ignoring creation failures other than "already
1439 exists".
1440
9cec981f
PH
1441PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1442 -bV or -d is used.
1443
aa2b5c79
PH
1444PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1445 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1446 too many continuations, the temporary file was not being removed, and the
1447 return code was incorrect.
aa2b5c79 1448
48a53b7f
PH
1449PH/31 Missing "BOOL" in function definition in filtertest.c.
1450
1c59d63b
PH
1451PH/32 Applied Sieve patches from the maintainer.
1452
671012da
TK
1453TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1454
1509d3a8
PH
1455PH/33 Added "verify = not_blind".
1456
1457PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1458 Local/Makefile (with some defaults set). These are used in built scripts
1459 such as exicyclog, but they have never been used in the exim_install
1460 script (though there are many overriding facilities there). I have
1461 arranged that the exim_install script now takes note of these two
1462 settings.
1463
1464PH/35 Installed configuration files for Dragonfly.
1465
2fe1a124
PH
1466PH/36 When a locally submitted message by a trusted user did not contain a
1467 From: header, and the sender address was obtained from -f or from an SMTP
1468 MAIL command, and the trusted user did not use -F to supply a sender
1469 name, $originator_name was incorrectly used when constructing a From:
1470 header. Furthermore, $originator_name was used for submission mode
1471 messages from external hosts without From: headers in a similar way,
1472 which is clearly wrong.
1473
8800895a
PH
1474PH/37 Added control=suppress_local_fixups.
1475
ccfdb010
PH
1476PH/38 When log_selector = +received_sender was set, and the addition of the
1477 sender made the log line's construction buffer exactly full, or one byte
1478 less than full, an overflow happened when the terminating "\n" was
1479 subsequently added.
1480
1130bfb0
PH
1481PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1482 when the result of a list match is failure because a DNS lookup failed.
1483
ebcb507f
PH
1484PH/40 RM_COMMAND is now used in the building process.
1485
c35e155c
PH
1486PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1487 the "build-* directories that it finds.
1488
95d1f782
PH
1489PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1490 address in a domain literal was a prefix of an interface address.
1491
fd6de02e
PH
1492PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1493 when verifying a sender address, unless rewrite_headers is false.
1494
58de37c5
PH
1495PH/44 Wrote a long comment about why errors_to addresses are verified as
1496 recipients, not senders.
1497
261cf466
TF
1498TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1499 the ratelimit ACL was added.
1500
3ee512ff
PH
1501PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1502
e08c430f
PH
1503PH/46 Added extra information about PostgreSQL errors to the error string.
1504
bef5a11f
PH
1505PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1506 avoiding the need to install special zones in a real server. This is
1507 backwards compatible; if it can't find the fake resolver, it drops back.
1508 Thus, both old and new test suites can be run.
1509
7546de58
TF
1510TF/02 Added util/ratelimit.pl
1511
e5d5a95f
TF
1512TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1513 clock is set back in time.
1514
2e88a017
TF
1515TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1516 Candler <B.Candler@pobox.com>.
1517
a5f65aa4
TF
1518TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1519 OK for addresses that are the result of redirections.
1520
e7726cbf
PH
1521PH/48 A number of further additions for the benefit of the new test suite,
1522 including a fake gethostbyname() that interfaces to the fake DNS resolver
1523 (see PH/47 above).
1524
a7fdad5b
TF
1525TF/06 The fix for widen_domains has also been applied to qualify_single and
1526 search_parents which are the other dnslookup options that can cause
1527 header rewrites.
1528
6af56900
PH
1529PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1530 type ("H").
1531
0925ede6
PH
1532PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1533
66afa403
TF
1534TF/07 Exim produced the error message "an SRV record indicated no SMTP
1535 service" if it encountered an MX record with an empty target hostname.
1536 The message is now "an MX or SRV record indicated no SMTP service".
1537
0154e85a
TF
1538TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1539 if the DNS of the sending site is misconfigured. This is quite a
1540 common situation. This change restores the behaviour of treating a
1541 helo verification defer as a failure.
1542
16f12c76
PH
1543PH/51 If self=fail was set on a router, the bounce message did not include the
1544 actual error message.
1545
bbe902f0 1546
e5a9dba6
PH
1547Exim version 4.52
1548-----------------
1549
1550TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1551
22c3b60b
PH
1552PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1553 command itself ended in error, the underlying message about the transport
1554 filter timeout was being overwritten with the pipe command error. Now the
1555 underlying error message should be appended to the second error message.
1556
06a9b4b5
PH
1557TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1558
c1ac6996
PH
1559PH/02 Reduce the amount of output that "make" produces by default. Full output
1560 can still be requested.
1561
9c7a242c
PH
1562PH/03 The warning log line about a condition test deferring for a "warn" verb
1563 was being output only once per connection, rather than after each
1564 occurrence (because it was using the same function as for successful
1565 "warn" verbs). This seems wrong, so I have changed it.
1566
87ba3f5f
PH
1567TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1568 it should not have, which might have caused a crash in the right
1569 circumstances, but probably never did.
1570
1571PH/04 Installed a modified version of Tony Finch's patch to make submission
1572 mode fix the return path as well as the Sender: header line, and to
1573 add a /name= option so that you can make the user's friendly name appear
1574 in the header line.
1575
29aba418
TF
1576TF/03 Added the control = fakedefer ACL modifier.
1577
fe0dab11
TF
1578TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1579 Mark Lowes for thorough testing.
870f6ba8 1580
11d337a4
TK
1581TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1582
1583TK/03 Merged latest SRS patch from Miles Wilton.
1584
415c8f3b
PH
1585PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1586 with the definition in sysexits.h (which is #included earlier).
1587 Fortunately, Exim does not actually use EX_OK. The code used to try to
1588 preserve the sysexits.h value, by assumimg that macro definitions were
1589 scanned for macro replacements. I have been disabused of this notion,
1590 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1591
958541e9
PH
1592PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1593 in the smtp transport. When a block could not be written in a single
1594 write() function, the timeout was being re-applied to each part-write.
1595 This seems wrong - if the receiver was accepting one byte at a time it
1596 would take for ever. The timeout is now adjusted when this happens. It
1597 doesn't have to be particularly precise.
1598
c206415f
TK
1599TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1600 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1601
2a4be8f9
PH
1602PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1603 without a domain if the check to <postmaster@domain> fails.
1604
1cba11c5
SC
1605SC/01 Eximstats: added -xls and the ability to specify output files
1606 (patch written by Frank Heydlauf).
1607
1608SC/02 Eximstats: use FileHandles for outputing results.
1609
1610SC/03 Eximstats: allow any combination of xls, txt, and html output.
1611
1612SC/04 Eximstats: fixed display of large numbers with -nvr option
1613
1614SC/05 Eximstats: fixed merging of reports with empty tables.
1615
1616SC/06 Eximstats: added the -include_original_destination flag
1617
1618SC/07 Eximstats: removed tabs and trailing whitespace.
1619
1005d00e
TK
1620TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1621
1622TK/06 MBOX spool code: Add real "From " MBOX separator line
1623 so the .eml file is really in mbox format (even though
1624 most programs do not really care). Patch from Alex Miller.
1625
1626TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1627 The latter is generated from $received_to and is only set if the
1628 message has one envelope recipient. SA can use these headers,
1629 obviously out-of-the-box. Patch from Alex Miller.
1630
9b4768fa
PH
1631PH/08 The ${def test on a variable was returning false if the variable's
1632 value was "0", contrary to what the specification has always said!
1633 The result should be true unless the variable is empty.
1634
1635PH/09 The syntax error of a character other than { following "${if
1636 def:variable_name" (after optional whitespace) was not being diagnosed.
1637 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1638 accidental colon was present, for example, could give incorrect results.
1639
0d7eb84a
PH
1640PH/10 Tidied the code in a number of places where the st_size field of a stat()
1641 result is used (not including appendfile, where other changes are about
1642 to be made).
1643
1644PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1645 This involved changing a lot of size variables from int to off_t. It
1646 should work with maildirs and everything.
1647
40727bee
TK
1648TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1649 spamd dying while we are connected to it.
1650
554d2369
TF
1651TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1652 <jgh@wizmail.org>
1653
1f922db1
PH
1654PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1655 function for BDB 4.3.
1656
ef213c3b
PH
1657PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1658
8ac170f3
PH
1659PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1660 the sources for PCRE have been re-arranged and more files are now
1661 involved.
1662
b1c749bb
PH
1663PH/15 The code I had for printing potentially long long variables in PH/11
1664 above was not the best (it lost precision). The length of off_t variables
1665 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1666 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1667 to be "long long int" or "long int". This is needed for the internal
1668 formatting function string_vformat().
b1c749bb 1669
4aac9b49
PH
1670PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1671 the configuration file to be ":syslog", then the script "guesses" where
1672 the logs files are, rather than using the compiled in default. In our
1673 case the guess is not the same as the compiled default, so the script
1674 suddenly stopped working when I started to use syslog. The patch checks
1675 to see if log_file_path is "". If so, it attempts to read it from exim
1676 with no configuration file to get the compiled in version, before it
1677 falls back to the previous guessing code."
1678
294520c8
TK
1679TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1680 implementing BATV in an Exim configuration. See NewStuff for the gory
1681 details.
1682
5bd022fe
PH
1683PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1684 Makefile that are specific to HP-UX.
1685
90e9ce59
PH
1686PH/18 If the "use_postmaster" option was set for a recipient callout together
1687 with the "random" option, the postmaster address was used as the MAIL
1688 FROM address for the random test, but not for the subsequent recipient
1689 test. It is now used for both.
1690
5ea81592
PH
1691PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1692 patch removes a few documentation additions to RFC 3028, because the
1693 latest draft now contains them. It adds the new en;ascii-case comparator
1694 and a new error check for 8bit text in MIME parts. Comparator and
1695 require names are now matched exactly. I enabled the subaddress
1696 extension, but it is not well tested yet (read: it works for me)."
1697
c6c2dc1d
PH
1698PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1699 rework some of the code of TK/09 above to avoid the hardwired use of
1700 "%lld" and "long long". Replaced the call to snprintf() with a call to
1701 string_vformat().
1702
fffffe4c
PH
1703PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1704 records point to non-existent hosts", "retry timeout exceeded", and
1705 "retry time not reached for any host after a long failure period".
ca02eafb 1706
9a26b6b2
PH
1707PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1708 experimental DomainKeys support:
1709
1710 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1711 (2) On an error such as an illegally used "control", the wrong name for
1712 the control was given.
1713
1714 These problems did NOT occur unless DomainKeys support was compiled.
1715
4aee0225
PH
1716PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1717
32d668a5
PH
1718PH/24 Added ${if match_ip condition.
1719
8187c3f3
PH
1720PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1721 databases so that it will be absolutely obvious if a crash occurs in the
1722 DB library. This is a regular occurrence (often caused by mis-matched
1723 db.h files).
1724
ff790e47 1725PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1726 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1727 picked up on a user's system that detects such things. There doesn't seem
1728 to be a gcc warning option for this - only an attribute that has to be
1729 put on the function's prototype. It seems that in Fedora Core 4 they have
1730 set this on a number of new functions. No doubt there will be more in due
1731 course.
ff790e47 1732
5417f6d1
PH
1733PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1734 specify a transport. However, if an address that was verified by such a
1735 router was the subject of a callout, Exim crashed because it tried to
1736 read the rcpt_include_affixes from the non-existent transport. Now it
1737 just assumes that the setting of that option is false. This bug was
1738 introduced by 4.51/PH/31.
1739
59cf8544
PH
1740PH/28 Changed -d+all to exclude +memory, because that information is very
1741 rarely of interest, but it makes the output a lot bigger. People tend to
1742 do -d+all out of habit.
1743
e7ad8a65
PH
1744PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1745 code in os-type was giving problems when libc.so lives in lib64, like on
1746 x86_64 Fedora Core.
1747
ade42478
PH
1748PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1749 aren't the modern standard, and it seems that some systems' include files
1750 don't always have them. Exim was already checking for some of the newer
1751 ones like T_AAAA, and defining it itself. I've added checks for all the
1752 record types that Exim uses.
1753
182ad5cf
PH
1754PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1755 not automatically generating a new one, as it is supposed to. This
1756 prevented TLS from working. If the file did exist, but contained invalid
1757 data, a new version was generated, as expected. It was only the case of a
1758 non-existent file that was broken.
1759
b0d9fc80
TK
1760TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1761 with a change in libdomainkeys > 0.64.
1762
1763TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1764 from DNS. If the selector record carries the flag, it now has
1765 precedence over the domain-wide flag.
1766
1767TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1768
47c7a64a
PH
1769PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1770 the use of a port name that isn't defined in /etc/services) occurred, the
1771 message was deferred as in a normal delivery, and thus remained on the
1772 spool, instead of being failed because of the mua_wrapper setting. This
1773 is now fixed, and I tidied up some of the mua_wrapper messages at the
1774 same time.
1775
a388bce4
SC
1776SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1777 the messages in a hash of arrays rather than using individual hashes.
1778 This is a bit cleaner and results in dramatic memory savings, albeit
1779 at a slight CPU cost.
1780
1781SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1782 as requested by Marc Sherman.
1783
1784SC/10 Eximstats: added histograms for user specified patterns as requested
1785 by Marc Sherman.
1786
0793e4ed
SC
1787SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1788
c58b88df
PH
1789PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1790 fopen() in the content-scanning modules that did not already have it.
1791
e7ad8a65 1792
7982096b
PH
1793Exim version 4.51
1794-----------------
1795
1a46a8c5
PH
1796TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1797 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1798
2f079f46 1799TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1800
1801TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1802
1803PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1804 to test Sieve filters that use "vacation".
1805
1806PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1807 that changes the way the GnuTLS parameters are stored in the cache file.
1808 The new format can be generated externally. For backward compatibility,
1809 if the data in the cache doesn't make sense, Exim assumes it has read an
1810 old-format file, and it generates new data and writes a new file. This
1811 means that you can't go back to an older release without removing the
1812 file.
1813
1814PH/03 A redirect router that has both "unseen" and "one_time" set does not
1815 work if there are any delivery delays because "one_time" forces the
1816 parent to be marked "delivered", so its unseen clone is never tried
1817 again. For this reason, Exim now forbids the simultaneous setting of
1818 these two options.
1819
1820PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1821 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1822 entry if you want to know the details. The fix, however, neglected to
1823 consider the case when local delivery batching is involved. The test for
1824 "previously delivered" was not happening when checking to see if an
1825 address could be batched with a previous (undelivered) one; under
1826 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1827 address.
1a46a8c5
PH
1828
1829PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1830 in its include files, and this causes problems building Exim.
1831
1832PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1833 header_syntax) but Exim was just ignoring anything given after a slash.
1834 In particular, this caused confusion with an attempt to use "verify =
1835 reverse_host_lookup/defer_ok". An error is now given when options are
1836 supplied for verify items that do not have them. (Maybe reverse_host_
1837 lookup should have a defer_ok option, but that's a different point.)
1838
1839PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1840 defined by RFC 821) to 2048, because there were problems with some AUTH
1841 commands, and RFC 1869 says the size should be increased for extended
1842 SMTP commands that take arguments.
1843
1844PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1845 Finch).
1846
1847PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1848 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1849
49c2d5ea
PH
1850PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1851 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1852 whatever). Otherwise the password may appear in the log. Following change
1853 PH/42 below, there is no longer a chance of it appearing in a bounce
1854 message.
49c2d5ea 1855
bf759a8b
PH
1856PH/11 Installed exipick version 20050225.0 from John Jetmore.
1857
83364d30
PH
1858PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1859 of its addresses was ever tried. (Bugzilla bug #2.)
1860
7999bbd7
PH
1861PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1862 the result incorrectly in the debug output. (It correctly added a newline
1863 to what was transported.)
1864
7dbf77c9
PH
1865TF/01 Added $received_time.
1866
74e0617f
PH
1867PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1868 commented out examples of how to interface to a virus scanner and to
1869 SpamAssassin. Also added commented examples of av_scanner and
1870 spamd_address settings.
1871
2f079f46
PH
1872PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1873 and controls are allowed in which ACLs. There were a couple of minor
1874 errors. Some of the entries in the conditions table (which is a table of
1875 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1876 negation of where the condition IS allowed.
1877
8c841523
PH
1878PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
1879
7766a4f0
PH
1880PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
1881 header file does not have a version number, so I've had to invent a new
1882 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
1883 API. The code is untested by me (my Linux distribution still has 0.3.2 of
1884 radiusclient), but it was contributed by a Radius user.
1885
8b417f2c
PH
1886PH/18 Installed Lars Mainka's patch for the support of CRL collections in
1887 files or directories, for OpenSSL.
1888
901f42cb
PH
1889PH/19 When an Exim process that is running as root has to create an Exim log
1890 file, it does so in a subprocess that runs as exim:exim so as to get the
1891 ownership right at creation (otherwise, other Exim processes might see
1892 the file with the wrong ownership). There was no test for failure of this
1893 fork() call, which would lead to the process getting stuck as it waited
1894 for a non-existent subprocess. Forks do occasionally fail when resources
1895 run out. I reviewed all the other calls to fork(); they all seem to check
1896 for failure.
1897
f9b9210e
PH
1898PH/20 When checking for unexpected SMTP input at connect time (before writing
1899 the banner), Exim was not dealing correctly with a non-positive return
1900 from the read() function. If the client had disconnected by this time,
1901 the result was a log entry for a synchronization error with an empty
1902 string after "input=" when read() returned zero. If read() returned -1
1903 (an event I could not check), uninitialized data bytes were printed.
1904 There were reports of junk text (parts of files, etc) appearing after
1905 "input=".
1906
54cdb463
PH
1907PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
1908
cf00dad6
PH
1909PH/22 Added support for macro redefinition, and (re)definition in between
1910 driver and ACL definitions.
1911
acb1b346
PH
1912PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
1913 forgetting to use the resulting value; it was using the unexpanded value.
1914
c5ddb310
PH
1915PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
1916 hadn't been configured. The fix is from Juergen Kreileder, who
1917 understands it better than I do:
1918
1919 "Here's what I see happening with three configured cyrus_sasl
1920 authenticators configured (plain, login, cram-md5):
1921
1922 On startup auth_cyrus_sasl_init() gets called for each of these.
1923 This means three calls to sasl_listmech() without a specified mech_list.
1924 => SASL tests which mechs of all available mechs actually work
1925 => three warnings about OTP not working
1926 => the returned list contains: plain, login, cram-md5, digest-md5, ...
1927
1928 With the patch, sasl_listmech() also gets called three times. But now
1929 SASL's mech_list option is set to the server_mech specified in the the
1930 authenticator. Or in other words, the answer from sasl_listmech()
1931 gets limited to just the mech you're testing for (which is different
1932 for each call.)
1933 => the return list contains just 'plain' or 'login', 'cram-md5' or
1934 nothing depending on the value of ob->server_mech.
1935
1936 I've just tested the patch: Authentication still works fine,
1937 unavailable mechs specified in the exim configuration are still
1938 caught, and the auth.log warnings about OTP are gone."
1939
31619da6
PH
1940PH/25 When debugging is enabled, the contents of the command line are added
1941 to the debugging output, even when log_selector=+arguments is not
1942 specified.
1943
bebaf0fc
PH
1944PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
1945 answer is "GNU", and only if the return is "GNU/something" is the answer
1946 "Linux".
1947
475fe28a
PH
1948PH/27 $acl_verify_message is now set immediately after the failure of a
1949 verification in an ACL, and so is available in subsequent modifiers. In
1950 particular, the message can be preserved by coding like this:
1951
1952 warn !verify = sender
1953 set acl_m0 = $acl_verify_message
1954
1955 Previously, $acl_verify_message was set only while expanding "message"
1956 and "log_message" when a very denied access.
1957
7e8bec7a
PH
1958PH/28 Modified OS/os.c-Linux with
1959
1960 -#ifndef OS_LOAD_AVERAGE
1961 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
1962
1963 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
1964 nomenclature these days.)
1965
e4a89c47
PH
1966PH/29 Installed patch from the Sieve maintainer that adds the options
1967 sieve_useraddress and sieve_subaddress to the redirect router.
1968
5ca2a9a1
PH
1969PH/30 In these circumstances:
1970 . Two addresses routed to the same list of hosts;
1971 . First host does not offer TLS;
1972 . First host accepts first address;
1973 . First host gives temporary error to second address;
1974 . Second host offers TLS and a TLS session is established;
1975 . Second host accepts second address.
1976 Exim incorrectly logged both deliveries with the TLS parameters (cipher
1977 and peerdn, if requested) that were in fact used only for the second
1978 address.
7e8bec7a 1979
c688b954
PH
1980PH/31 When doing a callout as part of verifying an address, Exim was not paying
1981 attention to any local part prefix or suffix that was matched by the
1982 router that accepted the address. It now behaves in the same way as it
1983 does for delivery: the affixes are removed from the local part unless
1984 rcpt_include_affixes is set on the transport.
1985
fed77020
PH
1986PH/32 Add the sender address, as F=<...>, to the log line when logging a
1987 timeout during the DATA phase of an incoming message.
1988
7fe1560f
PH
1989PH/33 Sieve envelope tests were broken for match types other than :is. I have
1990 applied a patch sanctioned by the Sieve maintainer.
c688b954 1991
ebb6e6d5
PH
1992PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
1993 the uid or gid is negative. A case of a negative gid caused this to be
1994 noticed. The fix allows for either to be negative.
1995
9c4e8f60
PH
1996PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
1997 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
1998 overlooked.
1999
2000PH/36 The change PH/12 above was broken. Fixed it.
2001
d7174846
PH
2002PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2003 the grounds that routing the same address twice would always produce the
2004 same answer. This might have been true once, but it is certainly no
2005 longer true now. Routing a child address may depend on the previous
2006 routing that produced that child. Some complicated redirection strategies
2007 went wrong when messages had multiple recipients, and made Exim's
2008 behaviour dependent on the order in which the addresses were given.
2009
2010 I have moved the duplicate checking until after the routing is complete.
2011 Exim scans the addresses that are assigned to local and remote
2012 transports, and removes any duplicates. This means that more work will be
2013 done, as duplicates will always all be routed, but duplicates are
2014 presumably rare, so I don't expect this is of any significance.
2015
2016 For deliveries to pipes, files, and autoreplies, the duplicate checking
2017 still happens during the routing process, since they are not going to be
2018 routed further.
2019
cfe75fc3
PH
2020PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2021 It corrects a timeout issue with spamd. This is Ian's comment: "The
2022 background is that sometimes spamd either never reads data from a
2023 connection it has accepted, or it never writes response data. The exiscan
2024 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2025 blindly assumes that writes won't block so it may never time out."
2026
be22d70e
PH
2027PH/39 Allow G after quota size as well as K and M.
2028
0612b098
PH
2029PH/40 The value set for $authenticated_id in an authenticator may not contain
2030 binary zeroes or newlines because the value is written to log lines and
2031 to spool files. There was no check on this. Now the value is run through
2032 the string_printing() function so that such characters are converted to
2033 printable escape sequences.
2034
2e0c1448
PH
2035PH/41 $message_linecount is a new variable that contains the total number of
2036 lines in the message. Compare $body_linecount, which is the count for the
2037 body only.
2038
447d236c
PH
2039PH/42 Exim no longer gives details of delivery errors for specific addresses in
2040 bounce and delay warning messages, except in certain special cases, which
2041 are as follows:
2042
2043 (a) An SMTP error message from a remote host;
2044 (b) A message specified in a :fail: redirection;
2045 (c) A message specified in a "fail" command in a system filter;
2046 (d) A message specified in a FAIL return from the queryprogram router;
2047 (e) A message specified by the cannot_route_message router option.
2048
2049 In these cases only, Exim does include the error details in bounce and
2050 warning messages. There are also a few cases where bland messages such
2051 as "unrouteable address" or "local delivery error" are given.
2052
d20976dc
PH
2053PH/43 $value is now also set for the "else" part of a ${run expansion.
2054
f656d135
PH
2055PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2056 being worked on, but at least Exim now implements the latest version to
2057 play with."
2058
2e2a30b4
PH
2059PH/45 In a pipe transport, although a timeout while waiting for the pipe
2060 process to complete was treated as a delivery failure, a timeout while
2061 writing the message to the pipe was logged, but erroneously treated as a
2062 successful delivery. Such timeouts include transport filter timeouts. For
2063 consistency with the overall process timeout, these timeouts are now
2064 treated as errors, giving rise to delivery failures by default. However,
2065 there is now a new Boolean option for the pipe transport called
2066 timeout_defer, which, if set TRUE, converts the failures into defers for
2067 both kinds of timeout. A transport filter timeout is now identified in
2068 the log output.
2069
9176e9f0
PH
2070PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2071 systems where "make" and "gmake" are different, calling "gmake" at top
2072 level broke things. I've arranged for the value of $(MAKE) to be passed
2073 from the Makefile to this script so that it can call the same version of
2074 "make".
2075
7982096b 2076
bbe902f0
PH
2077A note about Exim versions 4.44 and 4.50
2078----------------------------------------
2079
2080Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2081changes of various kinds. As a consequence, a big documentation update was
2082needed. This delayed the release for rather longer than seemed good, especially
2083in the light of a couple of (minor) security issues. Therefore, the changes
2084that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2085release. So 4.44 and 4.50 are in effect two different branches that both start
2086from 4.43.
2087
2088I have left the 4.50 change log unchanged; it contains all the changes since
20894.43. The change log for 4.44 is below; many of its items are identical to
2090those for 4.50. This seems to be the most sensible way to preserve the
2091historical information.
2092
2093
f7b63901 2094Exim version 4.50
495ae4b0
PH
2095-----------------
2096
5fe762f6
PH
2097 1. Minor wording change to the doc/README.SIEVE file.
2098
139059f6 2099 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2100 computation of the current number of files was incorrect.
495ae4b0 2101
7086e875
PH
2102 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2103 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2104 place.
2105
35af9f61
PH
2106 4. Give more explanation in the error message when the command for a transport
2107 filter fails to execute.
2108
b668c215
PH
2109 5. There are several places where Exim runs a non-Exim command in a
2110 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2111 was being done only for the command run by the queryprogram router. It is
2112 now done for all such subprocesses. The other cases are: ${run, transport
2113 filters, and the commands run by the lmtp and pipe transports.
2114
a494b1e1
PH
2115 6. Added CONFIGURE_GROUP build-time option.
2116
2117 7. Some older OS have a limit of 256 on the maximum number of file
2118 descriptors. Exim was using setrlimit() to set 1000 as a large value
2119 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2120 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2121
c5fcb476
PH
2122 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2123 was an oversight, and furthermore, ever since the addition of extra
2124 controls (e.g. 4.43/32), the checks on when to allow different forms of
2125 "control" were broken. There should now be diagnostics for all cases when a
2126 control that does not make sense is encountered.
2127
69358f02
PH
2128 9. Added the /retain_sender option to "control=submission".
2129
5be20824
PH
213010. $recipients is now available in the predata ACL (oversight).
2131
eb2c0248
PH
213211. Tidy the search cache before the fork to do a delivery from a message
2133 received from the command line. Otherwise the child will trigger a lookup
2134 failure and thereby defer the delivery if it tries to use (for example) a
2135 cached ldap connection that the parent has called unbind on.
2136
2a3eea10
PH
213712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2138 of $address_data from the recipient verification was clobbered by the
2139 sender verification.
2140
214113. The value of address_data from a sender verification is now available in
2142 $sender_address_data in subsequent conditions in the ACL statement.
2143
23c7ff99
PH
214414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2145
4deaf07d
PH
214615. Added a new option "connect=<time>" to callout options, to set a different
2147 connection timeout.
2148
926e1192
PH
214916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2150 was its contents. (It was OK if the option was not defined at all.)
2151
650edc6f
PH
215217. A "Completed" log line is now written for messages that are removed from
2153 the spool by the -Mrm option.
2154
2c7db3f5
PH
215518. New variables $sender_verify_failure and $recipient_verify_failure contain
2156 information about exactly what failed.
2157
3d235903
PH
215819. Added -dd to debug only the daemon process.
2159
7c7ad977
PH
216020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2161 handles timeouts, both on the server side and network timeouts. Renamed the
2162 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2163
981756db
PH
216421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2165 It is now set to "smtps".
2166
d4eb88df
PH
216722. $host_address is now set to the target address during the checking of
2168 ignore_target_hosts.
2169
217023. When checking ignore_target_hosts for an ipliteral router, no host name was
2171 being passed; this would have caused $sender_host_name to have been used if
2172 matching the list had actually called for a host name (not very likely,
2173 since this list is usually IP addresses). A host name is now passed as
2174 "[x.x.x.x]".
2175
7d468ab8
PH
217624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2177 code that specifies a non-restarting handler (typically sigaction() in
2178 modern systems) in an attempt to fix a rare and obscure crash bug.
2179
218025. Narrowed the window for a race in the daemon that could cause it to ignore
2181 SIGCHLD signals. This is not a major problem, because they are used only to
2182 wake it up if nothing else does.
2183
62c0818f
PH
218426. A malformed maildirsize file could cause Exim to calculate negative values
2185 for the mailbox size or file count. Odd effects could occur as a result.
2186 The maildirsize information is now recalculated if the size or filecount
2187 end up negative.
2188
26034054
PH
218927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2190 support for a long time. Removed HAVE_SYS_VFS_H.
2191
af66f652
PH
219228. Installed the latest version of exipick from John Jetmore.
2193
90af77f4
PH
219429. In an address list, if the pattern was not a regular expression, an empty
2195 subject address (from a bounce message) matched only if the pattern was an
2196 empty string. Non-empty patterns were not even tested. This was the wrong
2197 because it is perfectly reasonable to use an empty address as part of a
2198 database query. An empty address is now tested by patterns that are
2199 lookups. However, all the other forms of pattern expect the subject to
2200 contain a local part and a domain, and therefore, for them, an empty
2201 address still always fails if the pattern is not itself empty.
2202
d8ef3577
PH
220330. Exim went into a mad DNS loop when attempting to do a callout where the
2204 host was specified on an smtp transport, and looking it up yielded more
2205 than one IP address.
2206
5cb8cbc6
PH
220731. Re-factored the code for checking spool and log partition space into a
2208 function that finds that data and another that does the check. The former
2209 is then used to implement four new variables: $spool_space, $log_space,
2210 $spool_inodes, and $log_inodes.
2211
14702f5b
PH
221232. The RFC2047 encoding function was originally intended for short strings
2213 such as real names; it was not keeping to the 75-character limit for
2214 encoded words that the RFC imposes. It now respects the limit, and
2215 generates multiple encoded words if necessary. To be on the safe side, I
2216 have increased the buffer size for the ${rfc2047: expansion operator from
2217 1024 to 2048 bytes.
2218
063b1e99
PH
221933. It is now permitted to omit both strings after an "if" condition; if the
2220 condition is true, the result is "true". As before, when the second string
2221 is omitted, a false condition yields an empty string. This makes it less
2222 cumbersome to write custom ACL and router conditions.
2223
652e1b65
PH
222434. Failure to deliver a bounce message always caused it to be frozen, even if
2225 there was an errors_to setting on the router. The errors_to setting is now
2226 respected.
2227
6f0c9a4f
PH
222835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2229 canonical form (fully expanded) before being placed in
2230 $sender_host_address.
2231
33397d19
PH
223236. The table in the code that translates DNS record types into text (T_A to
2233 "A" for instance) was missing entries for NS and CNAME. It is just possible
2234 that this could have caused confusion if both these types were looked up
2235 for the same domain, because the text type is used as part of Exim's
2236 per-process caching. But the chance of anyone hitting this buglet seems
2237 very small.
2238
7bb56e1f
PH
223937. The dnsdb lookup has been extended in a number of ways.
2240
2241 (1) There is a new type, "zns", which walks up the domain tree until it
2242 finds some nameserver records. It should be used with care.
2243
ea3bc19b
PH
2244 (2) There is a new type, "mxh", which is like "mx" except that it returns
2245 just the host names, not the priorities.
2246
2247 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2248 looked up. The behaviour when one of the lookups defers can be
2249 controlled by a keyword.
7bb56e1f 2250
ea3bc19b 2251 (4) It is now possible to specify the separator character for use when
7bb56e1f 2252 multiple records are returned.
33397d19 2253
0bcb2a0e
PH
225438. The dnslists ACL condition has been extended: it is now possible to supply
2255 a list of IP addresses and/or domains to be looked up in a particular DNS
2256 domain.
2257
2ac0e484
PH
225839. Added log_selector=+queue_time_overall.
2259
4e1fde53
PH
226040. When running the queue in the test harness, wait just a tad after forking a
2261 delivery process, to get repeatability of debugging output.
2262
de365ded
PH
226341. Include certificate and key file names in error message when GnuTLS fails
2264 to set them up, because the GnuTLS error message doesn't include the name
2265 of the failing file when there is a problem reading it.
2266
f05da2e8
PH
226742. Allow both -bf and -bF in the same test run.
2268
d6453af2
PH
226943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2270
f7b63901
PH
227144. The "Exiscan patch" is now merged into the mainline Exim source.
2272
227345. Sometimes the final signoff response after QUIT could fail to get
2274 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2275 < 0 before doing a fflush(). This bug looks as though it goes back to the
2276 introduction of TLS in release 3.20, but "sometimes" must have been rare
2277 because the tests only now provoked it.
2278
a444213a
PH
227946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2280 (this can affect the format of dates).
2281
0ec020ea
PH
228247. exim_tidydb, when checking for the continued existence of a message for
2283 which it has found a message-specific retry record, was not finding
2284 messages that were in split spool directories. Consequently, it was
2285 deleting retry records that should have stayed in existence.
2286
b1206957
PH
228748. Steve fixed some bugs in eximstats.
2288
228949. The SPA authentication driver was not abandoning authentication and moving
2290 on to the next authenticator when an expansion was forced to fail,
2291 contradicting the general specification for all authenticators. Instead it
2292 was generating a temporary error. It now behaves as specified.
2293
26dd5a95
PH
229450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2295 (the order specifies the preference for clients). The order is now AES256,
2296 AES128, 3DES, ARCFOUR128.
2297
343b2385
PH
229851. Small patch to Sieve code - explicitly set From: when generating an
2299 autoreply.
2300
1c5466b9
PH
230152. Exim crashed if a remote delivery caused a very long error message to be
2302 recorded - for instance if somebody sent an entire SpamAssassin report back
2303 as a large number of 550 error lines. This bug was coincidentally fixed by
2304 increasing the size of one of Exim's internal buffers (big_buffer) that
2305 happened as part of the Exiscan merge. However, to be on the safe side, I
2306 have made the code more robust (and fixed the comments that describe what
2307 is going on).
2308
55ee9ee3
PH
230953. Now that there can be additional text after "Completed" in log lines (if
2310 the queue_time_overall log selector is set), a one-byte patch to exigrep
2311 was needed to allow it to recognize "Completed" as not the last thing in
2312 the line.
2313
d38f8232
PH
231454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2315 patch that reportedly fixes this has been added. I am not expert enough to
2316 create a test for it. This is what the patch creator wrote:
2317
2318 "I found a little strange behaviour of ldap code when working with
2319 Windows 2003 AD Domain, where users was placed in more than one
2320 Organization Units. When I tried to give exim partial DN, the exit code
2321 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2322 But simultaneously result of request was absolutely normal ldap result,
2323 so I produce this patch..."
2324
3295e65b
PH
2325 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2326 REFERENCE, so I have modified the code to exclude the patch when that macro
2327 is not defined.
2328
7102e136
PH
232955. Some experimental protocols are using DNS PTR records for new purposes. The
2330 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2331 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2332 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2333 CAN-2005-0021
7102e136 2334
3ca0ba97
PH
233556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2336
c2bcbe20
PH
233757. Double the size of the debug message buffer (to 2048) so that more of very
2338 long debug lines gets shown.
2339
18ce445d
PH
234058. The exicyclog utility now does better if the number of log files to keep
2341 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2342
1f5b4c3d
PH
234359. Two changes related to the smtp_active_hostname option:
2344
2345 (1) $smtp_active_hostname is now available as a variable.
2346 (2) The default for smtp_banner uses $smtp_active_hostname instead
2347 of $primary_hostname.
2348
b975ba52
PH
234960. The host_aton() function is supposed to be passed a string that is known
2350 to be a valid IP address. However, in the case of IPv6 addresses, it was
2351 not checking this. This is a hostage to fortune. Exim now panics and dies
2352 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2353 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2354 components; fortuitously, this particular loophole had already been fixed
2355 by change 4.50/55 above.
2356
2357 If there are any other similar loopholes, the new check in host_aton()
2358 itself should stop them being exploited. The report I received stated that
2359 data on the command line could provoke the exploit when Exim was running as
2360 exim, but did not say which command line option was involved. All I could
2361 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2362 running as the user.
ea3a6f44 2363 CAN-2005-0021
85b87bc2
PH
2364
236561. There was a buffer overflow vulnerability in the SPA authentication code
2366 (which came originally from the Samba project). I have added a test to the
2367 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2368 CAN-2005-0022
b975ba52 2369
17ffcae7
PH
237062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2371 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2372
d95f9fdb
PH
237363. The daemon start-up calls getloadavg() while still root for those OS that
2374 need the first call to be done as root, but it missed one case: when
2375 deliver_queue_load_max is set with deliver_drop_privilege. This is
2376 necessary for the benefit of the queue runner, because there is no re-exec
2377 when deliver_drop_privilege is set.
2378
86b8287f
PH
237964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2380 This has been fixed.
2381
60dc5e56
PH
238265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2383 was in use, was not putting the data itself into the right store pool;
2384 consequently, it could be overwritten for a subsequent message in the same
2385 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2386 the caching.)
2387
533244af
PH
238866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2389
a5a28604
PH
239067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2391 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2392 the function were treating the return as a boolean value, which happened to
2393 work because 0=false and not-0=true, but is not correct code.
2394
7e634d24
PH
239568. The host_aton() function was not handling scoped IPv6 addresses (those
2396 with, for example, "%eth0" on the end) correctly.
2397
3e11c26b
PH
239869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2399 negated items (that is, ~something) in unsigned ints. Some compilers
2400 apparently mutter when there is no cast.
2401
6729cf78
PH
240270. If an address verification called from an ACL failed, and did not produce a
2403 user-specific message (i.e. there was only a "system" message), nothing was
2404 put in $acl_verify_message. In this situation, it now puts the system
2405 message there.
2406
00f00ca5
PH
240771. Change 4.23/11 added synchronization checking at the start of an SMTP
2408 session; change 4.31/43 added the unwanted input to the log line - except
2409 that it did not do this in the start of session case. It now does.
2410
c9bdd01c
PH
241172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2412 This is wrong and can cause the other end to generate a synchronization
2413 error if it is another Exim or anything else that does the synchronization
2414 check. A QUIT command is no longer sent after a timeout.
2415
d43194df
PH
241673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2417 during host lookups.
2418
fe5b5d0b
PH
241974. The defer_ok option of callout verification was not working if it was used
2420 when verifying addresses in header lines, that is, for this case:
2421
2422 verify = header_sender/callout=defer_ok
2423
76a2d7ba
PH
242475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2425 those file descriptors could be used for SMTP connections. If anything
2426 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2427 could be sent to the SMTP client, causing chaos. The daemon now opens
2428 stdin, stdout, and stderr to /dev/null when it puts itself into the
2429 background.
2430
243176. Arrange for output from Perl's "warn" command to be written to Exim's main
2432 log by default. The user can override this with suitable Perl magic.
2433
04f7d5b9
PH
243477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2435 the log message when discard triggers, was not working for the DATA ACL or
2436 for the non-SMTP ACL.
2437
bc60667e
PH
243878. Error message wording change in sieve.c.
2439
bb6e88ff
PH
244079. If smtp_accept_max_per_host was set, the number of connections could be
2441 restricted to fewer than expected, because the daemon was trying to set up
2442 a new connection before checking whether the processes handling previous
2443 connections had finished. The check for completed processes is now done
2444 earlier. On busy systems, this bug wouldn't be noticed because something
2445 else would have woken the daemon, and it would have reaped the completed
2446 process earlier.
2447
1e70f85b
PH
244880. If a message was submitted locally by a user whose login name contained one
2449 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2450 It caused a spool format error. I have fixed the spool reading code. A
2451 related problem was that the "from" clause in the Received: line became
2452 illegal because of the space(s). It is now covered by ${quote_local_part.
2453
245481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2455 tables).
2456
4e01f9d6
PH
245782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2458
1ee1cef2
PH
245983. Patch from Sieve maintainer to fix unterminated string problem in
2460 "vacation" handling.
2461
6e2b4ccc
PH
246284. Some minor changes to the Linux configuration files to help with other
2463 OS variants using glibc.
2464
8e669ac1
PH
246585. One more patch for Sieve to update vacation handling to latest spec.
2466
495ae4b0 2467
bbe902f0
PH
2468----------------------------------------------------
2469See the note above about the 4.44 and 4.50 releases.
2470----------------------------------------------------
2471
2472
2473Exim version 4.44
2474-----------------
2475
2476 1. Change 4.43/35 introduced a bug that caused file counts to be
2477 incorrectly computed when quota_filecount was set in an appendfile
2478 transport
2479
2480 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2481 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2482 place.
2483
2484 3. Give more explanation in the error message when the command for a transport
2485 filter fails to execute.
2486
2487 4. There are several places where Exim runs a non-Exim command in a
2488 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2489 was being done only for the command run by the queryprogram router. It is
2490 now done for all such subprocesses. The other cases are: ${run, transport
2491 filters, and the commands run by the lmtp and pipe transports.
2492
2493 5. Some older OS have a limit of 256 on the maximum number of file
2494 descriptors. Exim was using setrlimit() to set 1000 as a large value
2495 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2496 systems. I've change it so that if it can't get 1000, it tries for 256.
2497
2498 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2499 was an oversight, and furthermore, ever since the addition of extra
2500 controls (e.g. 4.43/32), the checks on when to allow different forms of
2501 "control" were broken. There should now be diagnostics for all cases when a
2502 control that does not make sense is encountered.
2503
2504 7. $recipients is now available in the predata ACL (oversight).
2505
2506 8. Tidy the search cache before the fork to do a delivery from a message
2507 received from the command line. Otherwise the child will trigger a lookup
2508 failure and thereby defer the delivery if it tries to use (for example) a
2509 cached ldap connection that the parent has called unbind on.
2510
2511 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2512 of $address_data from the recipient verification was clobbered by the
2513 sender verification.
2514
251510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2516 was its contents. (It was OK if the option was not defined at all.)
2517
251811. A "Completed" log line is now written for messages that are removed from
2519 the spool by the -Mrm option.
2520
252112. $host_address is now set to the target address during the checking of
2522 ignore_target_hosts.
2523
252413. When checking ignore_target_hosts for an ipliteral router, no host name was
2525 being passed; this would have caused $sender_host_name to have been used if
2526 matching the list had actually called for a host name (not very likely,
2527 since this list is usually IP addresses). A host name is now passed as
2528 "[x.x.x.x]".
2529
253014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2531 code that specifies a non-restarting handler (typically sigaction() in
2532 modern systems) in an attempt to fix a rare and obscure crash bug.
2533
253415. Narrowed the window for a race in the daemon that could cause it to ignore
2535 SIGCHLD signals. This is not a major problem, because they are used only to
2536 wake it up if nothing else does.
2537
253816. A malformed maildirsize file could cause Exim to calculate negative values
2539 for the mailbox size or file count. Odd effects could occur as a result.
2540 The maildirsize information is now recalculated if the size or filecount
2541 end up negative.
2542
254317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2544 support for a long time. Removed HAVE_SYS_VFS_H.
2545
ea3a6f44 254618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2547
254819. Allow an empty sender to be matched against a lookup in an address list.
2549 Previously the only cases considered were a regular expression, or an
2550 empty pattern.
2551
255220. Exim went into a mad DNS lookup loop when doing a callout where the
2553 host was specified on the transport, if the DNS lookup yielded more than
2554 one IP address.
2555
ea3a6f44
NM
255621. The RFC2047 encoding function was originally intended for short strings
2557 such as real names; it was not keeping to the 75-character limit for
2558 encoded words that the RFC imposes. It now respects the limit, and
2559 generates multiple encoded words if necessary. To be on the safe side, I
2560 have increased the buffer size for the ${rfc2047: expansion operator from
2561 1024 to 2048 bytes.
bbe902f0 2562
ea3a6f44
NM
256322. Failure to deliver a bounce message always caused it to be frozen, even if
2564 there was an errors_to setting on the router. The errors_to setting is now
2565 respected.
bbe902f0
PH
2566
256723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2568 canonical form (fully expanded) before being placed in
2569 $sender_host_address.
2570
257124. Updated eximstats to version 1.33
2572
ea3a6f44
NM
257325. Include certificate and key file names in error message when GnuTLS fails
2574 to set them up, because the GnuTLS error message doesn't include the name
2575 of the failing file when there is a problem reading it.
bbe902f0
PH
2576
257726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2578 As per change 25.
bbe902f0 2579
ea3a6f44
NM
258027. Reset the locale to "C" after calling embedded Perl, in case it was changed
2581 (this can affect the format of dates).
bbe902f0 2582
ea3a6f44
NM
258328. exim_tidydb, when checking for the continued existence of a message for
2584 which it has found a message-specific retry record, was not finding
2585 messages that were in split spool directories. Consequently, it was
2586 deleting retry records that should have stayed in existence.
bbe902f0
PH
2587
258829. eximstats updated to version 1.35
2589 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2590 1.35 - bugfix such that pie charts by volume are generated correctly
2591
ea3a6f44
NM
259230. The SPA authentication driver was not abandoning authentication and moving
2593 on to the next authenticator when an expansion was forced to fail,
2594 contradicting the general specification for all authenticators. Instead it
2595 was generating a temporary error. It now behaves as specified.
bbe902f0 2596
ea3a6f44
NM
259731. The default ordering of permitted cipher suites for GnuTLS was pessimal
2598 (the order specifies the preference for clients). The order is now AES256,
2599 AES128, 3DES, ARCFOUR128.
bbe902f0 2600
ea3a6f44
NM
260131. Small patch to Sieve code - explicitly set From: when generating an
2602 autoreply.
bbe902f0 2603
ea3a6f44
NM
260432. Exim crashed if a remote delivery caused a very long error message to be
2605 recorded - for instance if somebody sent an entire SpamAssassin report back
2606 as a large number of 550 error lines. This bug was coincidentally fixed by
2607 increasing the size of one of Exim's internal buffers (big_buffer) that
2608 happened as part of the Exiscan merge. However, to be on the safe side, I
2609 have made the code more robust (and fixed the comments that describe what
2610 is going on).
bbe902f0 2611
ea3a6f44
NM
261233. Some experimental protocols are using DNS PTR records for new purposes. The
2613 keys for these records are domain names, not reversed IP addresses. The
2614 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2615 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2616 CAN-2005-0021
2617
ea3a6f44
NM
261834. The host_aton() function is supposed to be passed a string that is known
2619 to be a valid IP address. However, in the case of IPv6 addresses, it was
2620 not checking this. This is a hostage to fortune. Exim now panics and dies
2621 if the condition is not met. A case was found where this could be provoked
2622 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2623 components; fortuitously, this particular loophole had already been fixed
2624 by change 4.50/55 or 4.44/33 above.
2625
2626 If there are any other similar loopholes, the new check in host_aton()
2627 itself should stop them being exploited. The report I received stated that
2628 data on the command line could provoke the exploit when Exim was running as
2629 exim, but did not say which command line option was involved. All I could
2630 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2631 running as the user.
bbe902f0
PH
2632 CAN-2005-0021
2633
ea3a6f44
NM
263435. There was a buffer overflow vulnerability in the SPA authentication code
2635 (which came originally from the Samba project). I have added a test to the
2636 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2637 CAN-2005-0022
2638
ea3a6f44
NM
263936. The daemon start-up calls getloadavg() while still root for those OS that
2640 need the first call to be done as root, but it missed one case: when
2641 deliver_queue_load_max is set with deliver_drop_privilege. This is
2642 necessary for the benefit of the queue runner, because there is no re-exec
2643 when deliver_drop_privilege is set.
bbe902f0 2644
ea3a6f44
NM
264537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2646 was in use, was not putting the data itself into the right store pool;
2647 consequently, it could be overwritten for a subsequent message in the same
2648 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2649 the caching.)
bbe902f0 2650
ea3a6f44
NM
265138. Sometimes the final signoff response after QUIT could fail to get
2652 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2653 < 0 before doing a fflush(). This bug looks as though it goes back to the
2654 introduction of TLS in release 3.20, but "sometimes" must have been rare
2655 because the tests only now provoked it.
bbe902f0
PH
2656
2657
495ae4b0
PH
2658Exim version 4.43
2659-----------------
2660
2661 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2662 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2663 Now it returns an integer. A number of calls were still expecting a T/F
2664 return. Fortuitously, in all cases, the tests worked in OK situations,
2665 which is the norm. However, things would have gone wrong on any write
2666 failures on the smtp file descriptor. This function is used when sending
2667 messages over SMTP and also when doing verify callouts.
2668
2669 2. When Exim is called to do synchronous delivery of a locally submitted
2670 message (the -odf or -odi options), it no longer closes stderr before doing
2671 the delivery.
2672
2673 3. Implemented the mua_wrapper option.
2674
2675 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2676
2677 5. Implemented the functions header_remove(), header_testname(),
2678 header_add_at_position(), and receive_remove_recipient(), and exported them
2679 to local_scan().
2680
2681 6. If an ACL "warn" statement specified the addition of headers, Exim already
2682 inserted X-ACL-Warn: at the start if there was no header name. However, it
2683 was not making this test for the second and subsequent header lines if
2684 there were newlines in the string. This meant that an invalid header could
2685 be inserted if Exim was badly configured.
2686
2687 7. Allow an ACL "warn" statement to add header lines at the start or after all
2688 the Received: headers, as well as at the end.
2689
2690 8. Added the rcpt_4xx retry error code.
2691
2692 9. Added postmaster_mailfrom=xxx to callout verification option.
2693
269410. Added mailfrom=xxxx to the callout verification option, for verify=
2695 header_sender only.
2696
269711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2698 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2699
270012. Inserted some casts to stop certain compilers warning when using pointer
2701 differences as field lengths or precisions in printf-type calls (mostly
2702 affecting debugging statements).
2703
270413. Added optional readline() support for -be (dynamically loaded).
2705
270614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2707 same clock tick as a message's arrival, so that its received time was the
2708 same as the "first fail" time on the retry record, and that message
2709 remained on the queue past the ultimate address timeout, every queue runner
2710 would try a delivery (because it was past the ultimate address timeout) but
2711 after another failure, the ultimate address timeout, which should have then
2712 bounced the address, did not kick in. This was a "< instead of <=" error;
2713 in most cases the first failure would have been in the next clock tick
2714 after the received time, and all would be well.
2715
271615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2717 being recognized when the domain list was tested by the match_domain
2718 condition in an expansion string.
2719
272016. Added the ${str2b64: operator.
2721
272217. Exim was always calling setrlimit() to set a large limit for the number of
2723 processes, without checking whether the existing limit was already
2724 adequate. (It did check for the limit on file descriptors.) Furthermore,
2725 errors from getrlimit() and setrlimit() were being ignored. Now they are
2726 logged to the main and panic logs, but Exim does carry on, to try to do its
2727 job under whatever limits there are.
2728
272918. Imported PCRE 5.0.
2730
273119. Trivial typo in log message " temporarily refused connection" (the leading
2732 space).
2733
273420. If the log selector return_path_on_delivery was set and an address was
2735 redirected to /dev/null, the delivery process crashed because it assumed
2736 that a return path would always be set for a "successful" delivery. In this
2737 case, the whole delivery is bypassed as an optimization, and therefore no
2738 return path is set.
2739
274021. Internal re-arrangement: the function for sending a challenge and reading
2741 a response while authentication was assuming a zero-terminated challenge
2742 string. It's now changed to take a pointer and a length, to allow for
2743 binary data in such strings.
2744
274522. Added the cyrus_sasl authenticator (code supplied by MBM).
2746
274723. Exim was not respecting finduser_retries when seeking the login of the
2748 uid under which it was called; it was always trying 10 times. (The default
2749 setting of finduser_retries is zero.) Also, it was sleeping after the final
2750 failure, which is pointless.
2751
275224. Implemented tls_on_connect_ports.
2753
275425. Implemented acl_smtp_predata.
2755
275626. If the domain in control=submission is set empty, Exim assumes that the
2757 authenticated id is a complete email address when it generates From: or
2758 Sender: header lines.
2759
276027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2761 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2762 chown and chgrp in /bin and hostname in /usr/bin.
2763
276428. Exim was keeping the "process log" file open after each use, just as it
2765 does for the main log. This opens the possibility of it remaining open for
2766 long periods when the USR1 signal hits a daemon. Occasional processlog
2767 errors were reported, that could have been caused by this. Anyway, it seems
2768 much more sensible not to leave this file open at all, so that is what now
2769 happens.
2770
277129. The long-running daemon process does not normally write to the log once it
2772 has entered its main loop, and it closes the log before doing so. This is
2773 so that log files can straightforwardly be renamed and moved. However,
2774 there are a couple of unusual error situations where the daemon does write
2775 log entries, and I had neglected to close the log afterwards.
2776
277730. The text of an SMTP error response that was received during a remote
2778 delivery was being truncated at 512 bytes. This is too short for some of
2779 the long messages that one sometimes sees. I've increased the limit to
2780 1024.
2781
278231. It is now possible to make retry rules that apply only when a message has a
2783 specific sender, in particular, an empty sender.
2784
278532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2786 it possible to be selective about when SMTP synchronization is enforced.
2787
278833. Added "control = caseful_local_part" and "control = "caselower_local_part".
2789
279032. Implemented hosts_connection_nolog.
2791
279233. Added an ACL for QUIT.
2793
279434. Setting "delay_warning=" to disable warnings was not working; it gave a
2795 syntax error.
2796
279735. Added mailbox_size and mailbox_filecount to appendfile.
2798
279936. Added control = no_multiline_responses to ACLs.
2800
280137. There was a bug in the logic of the code that waits for the clock to tick
2802 in the case where the clock went backwards by a substantial amount such
2803 that the microsecond fraction of "now" was more than the microsecond
2804 fraction of "then" (but the whole seconds number was less).
2805
280638. Added support for the libradius Radius client library this is found on
2807 FreeBSD (previously only the radiusclient library was supported).
2808
2809
2810Exim version 4.42
2811-----------------
2812
2813 1. When certain lookups returned multiple values in the form name=value, the
2814 quoting of the values was not always being done properly. Specifically:
2815 (a) If the value started with a double quote, but contained no whitespace,
2816 it was not quoted.
2817 (b) If the value contained whitespace other than a space character (i.e.
2818 tabs or newlines or carriage returns) it was not quoted.
2819 This fix has been applied to the mysql and pgsql lookups by writing a
2820 separate quoting function and calling it from the lookup code. The fix
2821 should probably also be applied to nisplus, ibase and oracle lookups, but
2822 since I cannot test any of those, I have not disturbed their existing code.
2823
2824 2. A hit in the callout cache for a specific address caused a log line with no
2825 reason for rejecting RCPT. Now it says "Previous (cached) callout
2826 verification failure".
2827
2828 3. There was an off-by-one bug in the queryprogram router. An over-long
2829 return line was truncated at 256 instead of 255 characters, thereby
2830 overflowing its buffer with the terminating zero. As well as fixing this, I
2831 have increased the buffer size to 1024 (and made a note to document this).
2832
2833 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2834 when Exim is waiting for an SMTP response from a remote server, Exim
2835 restarts its select() call on the socket, thereby resetting its timeout.
2836 This is not a problem when such interrupts are rare. Somebody set up a cron
2837 job to run exiwhat every 2 minutes, which is less than the normal select()
2838 timeout (5 or 10 minutes). This meant that the select() timeout never
2839 kicked in because it was always reset. I have fixed this by comparing the
2840 time when an interrupt arrives with the time at the start of the first call
2841 to select(). If more time than the timeout has elapsed, the interrupt is
2842 treated as a timeout.
2843
2844 5. Some internal re-factoring in preparation for the addition of Sieve
2845 extensions (by MH). In particular, the "personal" test is moved to a
2846 separate function, and given an option for scanning Cc: and Bcc: (which is
2847 not set for Exim filters).
2848
2849 6. When Exim created an email address using the login of the caller as the
2850 local part (e.g. when creating a From: or Sender: header line), it was not
2851 quoting the local part when it contained special characters such as @.
2852
2853 7. Installed new OpenBSD configuration files.
2854
2855 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2856 try to make them clearer.
2857
2858 9. Callout options, other than the timeout value, were being ignored when
2859 verifying sender addresses in header lines. For example, when using
2860
2861 verify = header_sender/callout=no_cache
2862
2863 the cache was (incorrectly) being used.
2864
286510. Added a missing instance of ${EXE} to the exim_install script; this affects
2866 only the Cygwin environment.
2867
286811. When return_path_on_delivery was set as a log selector, if different remote
2869 addresses in the same message used different return paths and parallel
2870 remote delivery occurred, the wrong values would sometimes be logged.
2871 (Whenever a remote delivery process finished, the return path value from
2872 the most recently started remote delivery process was logged.)
2873
287412. RFC 3848 specifies standard names for the "with" phrase in Received: header
2875 lines when AUTH and/or TLS are in use. This is the "received protocol"
2876 field. Exim used to use "asmtp" for authenticated SMTP, without any
2877 indication (in the protocol name) for TLS use. Now it follows the RFC and
2878 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
2879 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
2880 names appear in log lines as well as in Received: header lines.
2881
288213. Installed MH's patches for Sieve to add the "copy" and "vacation"
2883 extensions, and comparison tests, and to fix some bugs.
2884
288514. Changes to the "personal" filter test:
2886
2887 (1) The test was buggy in that it was just doing the equivalent of
2888 "contains" tests on header lines. For example, if a user's address was
2889 anne@some.where, the "personal" test would incorrectly be true for
2890
2891 To: susanne@some.where
2892
2893 This test is now done by extracting each address from the header in turn,
2894 and checking the entire address. Other tests that are part of "personal"
2895 are now done using regular expressions (for example, to check local parts
2896 of addresses in From: header lines).
2897
2898 (2) The list of non-personal local parts in From: addresses has been
2899 extended to include "listserv", "majordomo", "*-request", and "owner-*",
2900 taken from the Sieve specification recommendations.
2901
2902 (3) If the message contains any header line starting with "List-" it is
2903 treated as non-personal.
2904
2905 (4) The test for "circular" in the Subject: header line has been removed
2906 because it now seems ill-conceived.
2907
290815. Minor typos in src/EDITME comments corrected.
2909
291016. Installed latest exipick from John Jetmore.
2911
291217. If headers_add on a router specified a text string that was too long for
2913 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
2914 of string_sprintf() is now avoided.
2915
291618. $message_body_size was not set (it was always zero) when running the DATA
2917 ACL and the local_scan() function.
2918
291919. For the "mail" command in an Exim filter, no default was being set for
2920 the once_repeat time, causing a random time value to be used if "once" was
2921 specified. (If the value happened to be <= 0, no repeat happened.) The
2922 default is now 0s, meaning "never repeat". The "vacation" command was OK
2923 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
2924 (I found it when inspecting the code).
2925
292620. There is now an overall timeout for performing a callout verification. It
2927 defaults to 4 times the callout timeout, which applies to individual SMTP
2928 commands during the callout. The overall timeout applies when there is more
2929 than one host that can be tried. The timeout is checked before trying the
2930 next host. This prevents very long delays if there are a large number of
2931 hosts and all are timing out (e.g. when the network connections are timing
2932 out). The value of the overall timeout can be changed by specifying an
2933 additional sub-option for "callout", called "maxwait". For example:
2934
2935 verify = sender/callout=5s,maxwait=20s
2936
293721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
2938 to the end before writing, but this should make it even safer).
2939
294022. Exim was forgetting that it had advertised PIPELINING for the second and
2941 subsequent messages on an SMTP connection. It was also not resetting its
2942 memory on STARTTLS and an internal HELO.
2943
294423. When Exim logs an SMTP synchronization error within a session, it now
2945 records whether PIPELINING has been advertised or not.
2946
294724. Added 3 instances of "(long int)" casts to time_t variables that were being
2948 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
2949 rather than long int.
2950
295125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
2952
295326. Added the never_mail option to autoreply.
2954
2955
2956Exim version 4.41
2957-----------------
2958
2959 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
2960 crash if the getsockname() call failed; this can happen if a connection is
2961 closed very soon after it is established. The problem was simply in the
2962 order in which certain operations were done, causing Exim to try to write
2963 to the SMTP stream before it had set up the file descriptor. The bug has
2964 been fixed by making things happen in the correct order.
2965
2966
2967Exim version 4.40
2968-----------------
2969
2970 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
2971 before the connection was closed, thus losing the rejection response.
2972
2973 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
2974 some early Solaris releases, but causes trouble in current releases where
2975 socklen_t is defined.
2976
2977 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
2978 always exist.
2979
2980 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
2981 configured.
2982
2983 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
2984 that releasing the top of it at the end releases what was used for sub-
2985 expansions (unless the block got too big). However, discard this block if
2986 the first thing is a variable or header, so that we can use its block when
2987 it is dynamic (useful for very large $message_headers, for example).
2988
2989 6. Lookups now cache *every* query, not just the most recent. A new, separate
2990 store pool is used for this. It can be recovered when all lookup caches are
2991 flushed. Lookups now release memory at the end of their result strings.
2992 This has involved some general refactoring of the lookup sources.
2993
2994 7. Some code has been added to the store_xxx() functions to reduce the amount
2995 of flapping under certain conditions.
2996
2997 8. log_incoming_interface used to affect only the <= reception log lines. Now
2998 it causes the local interface and port to be added to several more SMTP log
2999 lines, for example "SMTP connection from", and rejection lines.
3000
3001 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3002
300310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3004
300511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3006 could be overwritten at the end of the current message (or the start of a
3007 new message if it was set in a HELO ACL). The value is now preserved for
3008 the duration of the SMTP connection.
3009
301012. If a transport had a headers_rewrite setting, and a matching header line
3011 contained an unqualified address, that address was qualified, even if it
3012 did not match any rewriting rules. The underlying bug was that the values
3013 of the flags that permit the existence of unqualified sender and recipient
3014 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3015 non-local messages, and by -bnq for local messages) were not being
3016 preserved with the message after it was received.
3017
301813. When Exim was logging an SMTP synchronization error, it could sometimes log
3019 "next input=" as part of the text comprising the host identity instead of
3020 the correct text. The code was using the same buffer for two different
3021 strings. However, depending on which order the printing function evaluated
3022 its arguments, the bug did not always show up. Under Linux, for example, my
3023 test suite worked just fine.
3024
302514. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3026 doesn't work with some older versions of Perl. It has been changed to "my",
3027 which in any case is probably the better facility to use.
3028
302915. A really picky compiler found some instances of statements for creating
3030 error messages that either had too many or two few arguments for the format
3031 string.
3032
303316. The size of the buffer for calls to the DNS resolver has been increased
3034 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3035 for addresses that have a lot of PTR records. This alleviates a problem; it
3036 does not fully solve it.
3037
303817. A dnsdb lookup for PTR records that receives more data than will fit in the
3039 buffer now truncates the list and logs the incident, which is the same
3040 action as happens when Exim is looking up a host name and its aliases.
3041 Previously in this situation something unpredictable would happen;
3042 sometimes it was "internal error: store_reset failed".
3043
304418. If a server dropped the connection unexpectedly when an Exim client was
3045 using GnuTLS and trying to read a response, the client delivery process
3046 crashed while trying to generate an error log message.
3047
304819. If a "warn" verb in an ACL added multiple headers to a message in a single
3049 string, for example:
3050
3051 warn message = H1: something\nH2: something
3052
3053 the text was added as a single header line from Exim's point of view
3054 though it ended up OK in the delivered message. However, searching for the
3055 second and subsequent header lines using $h_h2: did not work. This has been
3056 fixed. Similarly, if a system filter added multiple headers in this way,
3057 the routers could not see them.
3058
305920. Expanded the error message when iplsearch is called with an invalid key to
3060 suggest using net-iplsearch in a host list.
3061
306221. When running tests using -bh, any delays imposed by "delay" modifiers in
3063 ACLs are no longer actually imposed (and a message to that effect is
3064 output).
3065
306622. If a "gecos" field in a passwd entry contained escaped characters, in
3067 particular, if it contained a \" sequence, Exim got it wrong when building
3068 a From: or a Sender: header from that name. A second bug also caused
3069 incorrect handling when an unquoted " was present following a character
3070 that needed quoting.
3071
307223. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3073 was not being matched caselessly.
3074
307524. Arranged for all hyphens in the exim.8 source to be escaped with
3076 backslashes.
3077
307825. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3079 properly. Recipient callout cache records were still being keyed to include
3080 the sender, even when use_sender was set false. This led to far more
3081 callouts that were necessary. The sender is no longer included in the key
3082 when use_sender is false.
3083
308426. Added "control = submission" modifier to ACLs.
3085
308627. Added the ${base62d: operator to decode base 62 numbers.
3087
308828. dnsdb lookups can now access SRV records.
3089
309029. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3091 the configuration file.
3092
309330. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3094 (-v) mode. This makes the output for a verbose queue run more intelligible.
3095
309631. Added a use_postmaster feature to recipient callouts.
3097
309832. Added the $body_zerocount variable, containing the number of binary zero
3099 bytes in the message body.
3100
310133. The time of last modification of the "new" subdirectory is now used as the
3102 "mailbox time last read" when there is a quota error for a maildir
3103 delivery.
3104
310534. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3106
310735. Added +ignore_unknown as a special item in host lists.
3108
310936. Code for decoding IPv6 addresses in host lists is now included, even if
3110 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3111 address was recognized as an IP address, but was then not correctly decoded
3112 into binary, causing unexpected and incorrect effects when compared with
3113 another IP address.
3114
3115
3116Exim version 4.34
3117-----------------
3118
3119 1. Very minor rewording of debugging text in manualroute to say "list of
3120 hosts" instead of "hostlist".
3121
3122 2. If verify=header_syntax was set, and a header line with an unqualified
3123 address (no domain) and a large number of spaces between the end of the
3124 name and the colon was received, the reception process suffered a buffer
3125 overflow, and (when I tested it) crashed. This was caused by some obsolete
3126 code that should have been removed. The fix is to remove it!
3127
3128 3. When running in the test harness, delay a bit after writing a bounce
3129 message to get a bit more predictability in the log output.
3130
3131 4. Added a call to search_tidyup() just before forking a reception process. In
3132 theory, someone could use a lookup in the expansion of smtp_accept_max_
3133 per_host which, without the tidyup, could leave open a database connection.
3134
3135 5. Added the variables $recipient_data and $sender_data which get set from a
3136 lookup success in an ACL "recipients" or "senders" condition, or a router
3137 "senders" option, similar to $domain_data and $local_part_data.
3138
3139 6. Moved the writing of debug_print from before to after the "senders" test
3140 for routers.
3141
3142 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3143 problems for message scanning, either using a data ACL, or using
3144 local_scan() because the Received: header was not generated till after they
3145 were called (in order to set the time as the time of reception completion).
3146 I have revised the way this works. The header is now generated after the
3147 body is received, but before the ACL or local_scan() are called. After they
3148 are run, the timestamp in the header is updated.
3149
3150
3151Exim version 4.33
3152-----------------
3153
3154 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3155 before starting a queue runner without re-exec. This happened only when
3156 deliver_drop_privilege was set or when the Exim user was set to root. The
3157 effect of the bug was that timeouts during subsequent deliveries caused
3158 crashes instead of being properly handled. The handler is now left at its
3159 default (and expected) setting.
3160
3161 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3162 message, again when deliver_drop_privilege is set or Exim is run as root.
3163 The bug described in (1) was not present in this case, but the tidying up
3164 of the other signals was missing. I have made the two cases consistent.
3165
3166 3. The ignore_target_hosts setting on a manualroute router was being ignored
3167 for hosts that were looked up using the /MX notation.
3168
3169 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3170 in domain lists.
3171
3172 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3173 operated on the sender address. After changing the $sender_address to <>
3174 for the sender address verify, Exim was re-instated it as the original
3175 (before rewriting) address, but remembering that it had rewritten it, so it
3176 wasn't rewriting it again. This bug also had the effect of breaking the
3177 sender address verification caching when the sender address was rewritten.
3178
3179 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3180 This has been changed so that if the ip literal address matches
3181 ignore_target_hosts, the router declines.
3182
3183 7. Added expansion conditions match_domain, match_address, and match_local_
3184 part (NOT match_host).
3185
3186 8. The placeholder for the Received: header didn't have a length field set.
3187
3188 9. Added code to Exim itself and to exim_lock to test for a specific race
3189 condition that could lead to file corruption when using MBX delivery. The
3190 issue is with the lockfile that is created in /tmp. If this file is removed
3191 after a process has opened it but before that process has acquired a lock,
3192 there is the potential for a second process to recreate the file and also
3193 acquire a lock. This could lead to two Exim processes writing to the file
3194 at the same time. The added code performs the same test as UW imapd; it
3195 checks after acquiring the lock that its file descriptor still refers to
3196 the same named file.
3197
319810. The buffer for building added header lines was of fixed size, 8192 bytes.
3199 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3200 when Exim is built.
3201
320211. Added the smtp_active_hostname option. If used, this will typically be made
3203 to depend on the incoming interface address. Because $interface_address is
3204 not set up until the daemon has forked a reception process, error responses
3205 that can happen earlier (such as "too many connections") no longer contain
3206 a host name.
3207
320812. If an expansion in a condition on a "warn" statement fails because a lookup
3209 defers, the "warn" statement is abandoned, and the next ACL statement is
3210 processed. Previously this caused the whole ACL to be aborted.
3211
321213. Added the iplsearch lookup type.
3213
321414. Added ident_timeout as a log selector.
3215
321615. Added tls_certificate_verified as a log selector.
3217
321816. Added a global option tls_require_ciphers (compare the smtp transport
3219 option of the same name). This controls incoming TLS connections.
3220
322117. I finally figured out how to make tls_require_ciphers do a similar thing
3222 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3223 before starting the TLS session.
3224
322518. Tabs are now shown as \t in -bP output.
3226
322719. If the log selector return_path_on_delivery was set, Exim crashed when
3228 bouncing a message because it had too many Received: header lines.
3229
323020. If two routers both had headers_remove settings, and the first one included
3231 a superfluous trailing colon, the final name in the first list and the
3232 first name in the second list were incorrectly joined into one item (with a
3233 colon in the middle).
3234
3235
3236Exim version 4.32
3237-----------------
3238
3239 1. Added -C and -D options to the exinext utility, mainly to make it easier
3240 to include in the automated testing, but these could be helpful when
3241 multiple configurations are in use.
3242
3243 2. The exinext utility was not formatting the output nicely when there was
3244 an alternate port involved in the retry record key, nor when there was a
3245 message id as well (for retries that were specific to a specific message
3246 and a specific host). It was also confused by IPv6 addresses, because of
3247 the additional colons they contain. I have fixed the IPv4 problem, and
3248 patched it up to do a reasonable job for IPv6.
3249
3250 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3251 delivery, the log line now contains "pipelined" if PIPELINING was used.
3252
3253 4. An SMTP transport process used to panic and die if the bind() call to set
3254 an explicit outgoing interface failed. This has been changed; it is now
3255 treated in the same way as a connect() failure.
3256
3257 5. A reference to $sender_host_name in the part of a conditional expansion
3258 that was being skipped was still causing a DNS lookup. This no longer
3259 occurs.
3260
3261 6. The def: expansion condition was not recognizing references to header lines
3262 that used bh_ and bheader_.
3263
3264 7. Added the _cache feature to named lists.
3265
3266 8. The code for checking quota_filecount in the appendfile transport was
3267 allowing one more file than it should have been.
3268
3269 9. For compatibility with Sendmail, the command line option
3270
3271 -prval:sval
3272
3273 is equivalent to
3274
3275 -oMr rval -oMs sval
3276
3277 and sets the incoming protocol and host name (for trusted callers). The
3278 host name and its colon can be omitted when only the protocol is to be set.
3279 Note the Exim already has two private options, -pd and -ps, that refer to
3280 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3281 "s", but I don't think that's a major issue.
3282
328310. A number of refactoring changes to the code, none of which should affect
3284 Exim's behaviour:
3285
3286 (a) The number of logging options was getting close to filling up the
3287 32-bit word that was used as a bit map. I have split them into two classes:
3288 those that are passed in the argument to log_write(), and those that are
3289 only ever tested independently outside of that function. These are now in
3290 separate 32-bit words, so there is plenty of room for expansion again.
3291 There is no change in the user interface or the logging behaviour.
3292
3293 (b) When building, for example, log lines, the code previously used a
3294 macro that called string_cat() twice, in order to add two strings. This is
3295 not really sufficiently general. Furthermore, there was one instance where
3296 it was actually wrong because one of the argument was used twice, and in
3297 one call a function was used. (As it happened, calling the function twice
3298 did not affect the overall behaviour.) The macro has been replaced by a
3299 function that can join an arbitrary number of extra strings onto a growing
3300 string.
3301
3302 (c) The code for expansion conditions now uses a table and a binary chop
3303 instead of a serial search (which was left over from when there were very
3304 few conditions). Also, it now recognizes conditions like "pam" even when
3305 the relevant support is not compiled in: a suitably worded error message is
3306 given if an attempt is made to use such a condition.
3307
330811. Added ${time_interval:xxxxx}.
3309
331012. A bug was causing one of the ddress fields not to be passed back correctly
3311 from remote delivery subprocesses. The field in question was not being
3312 subsequently used, so this caused to problems in practice.
3313
331413. Added new log selectors queue_time and deliver_time.
3315
331614. Might have fixed a bug in maildirsizefile handling that threw up
3317 "unexpected character" debug warnings, and recalculated the data
3318 unnecessarily. In any case, I expanded the warning message to give more
3319 information.
3320
332115. Added the message "Restricted characters in address" to the statements in
3322 the default ACL that block characters like @ and % in local parts.
3323
332416. Change 71 for release 4.31 proved to be much less benign that I imagined.
3325 Three changes have been made:
3326
3327 (a) There was a serious bug; a negative response to MAIL caused the whole
3328 recipient domain to be cached as invalid, thereby blocking all messages
3329 to all local parts at the same domain, from all senders. This bug has
3330 been fixed. The domain is no longer cached after a negative response to
3331 MAIL if the sender used is not empty.
3332
3333 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3334 been restored.
3335
3336 (c) A new callout option, "use_sender" has been added for people who want
3337 the modified behaviour.
3338
3339
3340Exim version 4.31
3341-----------------
3342
3343 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3344 Larry Rosenman.
3345
3346 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3347 indeed breaks things for older releases.
3348
3349 3. Added additional logging to the case where there is a problem reading data
3350 from a filter that is running in a subprocess using a pipe, in order to
3351 try to track down a specific problem.
3352
3353 4. Testing facility fudge: when running in the test harness and attempting
3354 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3355 getting "No route to host". Convert this to a timeout.
3356
3357 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3358 warning.
3359
3360 6. Some OS don't have socklen_t but use size_t instead. This affects the
3361 fifth argument of getsockopt() amongst other things. This is now
3362 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3363 can be set for individual OS. I have set it for SunOS5, OSF1, and
3364 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3365 some earlier ones do not.
3366
3367 7. Change 4.30/15 was not doing the test caselessly.
3368
3369 8. The standard form for an IPv6 address literal was being rejected by address
3370 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3371 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3372 this, as well as the form without the "IPv6" on the front (but only when
3373 address literals are enabled, of course).
3374
3375 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3376
337710. Exim crashed if a message with an empty sender address specified by -f
3378 encountered a router with an errors_to setting. This could be provoked only
3379 by a command such as
3380
3381 exim -f "" ...
3382
3383 where an empty string was supplied; "<>" did not hit this bug.
3384
338511. Installed PCRE release 4.5.
3386
338712. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3388 remained set. It is now erased.
3389
339013. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3391 times from message ids (which are base 36 rather than the normal 62).
3392
339314. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3394 were being counted as actual protocol errors, and logged if the log
3395 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3396 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3397 and DATA following a set of rejected RCPTs do not count as protocol errors.
3398 In other words, Exim assumes they were pipelined, though this may not
3399 actually be the case. Of course, in all cases the client gets an
3400 appropriate error code.
3401
340215. If a lookup fails in an ACL condition, a message about the failure may
3403 be available; it is used if testing the ACL cannot continue, because most
3404 such messages specify what the cause of the deferral is. However, some
3405 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3406 that caused an old message to be retained and used if a later statement
3407 caused a defer, replacing the real cause of the deferral.
3408
340916. If an IP address had so many PTR records that the DNS lookup buffer
3410 was not large enough to hold them, Exim could crash while trying to process
3411 the truncated data. It now detects and logs this case.
3412
341317. Further to 4.21/58, another change has been made: if (and only if) the
3414 first line of a message (the first header line) ends with CRLF, a bare LF
3415 in a subsequent header line has a space inserted after it, so as not to
3416 terminate the header.
3417
341818. Refactoring: tidied an ugly bit of code in appendfile that copied data
3419 unnecessarily, used atoi() instead of strtol(), and didn't check the
3420 termination when getting file sizes from file names by regex.
3421
342219. Completely re-implemented the support for maildirsize files, in the light
3423 of a number of problems with the previous contributed implementation
3424 (4.30/29). In particular:
3425
3426 . If the quota is zero, the maildirsize file is maintained, but no quota is
3427 imposed.
3428
3429 . If the maildir directory does not exist, it is created before any attempt
3430 to write a maildirsize file.
3431
3432 . The quota value in the file is just a cache; if the quota is changed in
3433 the transport, the new value overrides.
3434
3435 . A regular expression is available for excluding directories from the
3436 count.
3437
343820. The autoreply transport checks the characters in options that define the
3439 message's headers; it allows continued headers, but it was checking with
3440 isspace() after an embedded newline instead of explicitly looking for a
3441 space or a tab.
3442
344321. If all the "regular" hosts to which an address was routed had passed their
3444 expiry times, and had not reached their retry times, the address was
3445 bounced, even if fallback hosts were defined. Now Exim should go on to try
3446 the fallback hosts.
3447
344822. Increased buffer sizes in the callout code from 1024 to 4096 to match the
3449 equivalent code in the SMTP transport. Some hosts send humungous responses
3450 to HELO/EHLO, more than 1024 it seems.
3451
345223. Refactoring: code in filter.c used (void *) for "any old type" but this
3453 gives compiler warnings in some environments. I've now done it "properly",
3454 using a union.
3455
345624. The replacement for inet_ntoa() that is used with gcc on IRIX systems
3457 (because of problems with the built-in one) was declared to return uschar *
3458 instead of char *, causing compiler failure.
3459
346025. Fixed a file descriptor leak when processing alias/forward files.
3461
346226. Fixed a minor format string issue in dbfn.c.
3463
346427. Typo in exim.c: ("dmbnz" for "dbmnz").
3465
346628. If a filter file refered to $h_xxx or $message_headers, and the headers
3467 contained RFC 2047 "words", Exim's memory could, under certain conditions,
3468 become corrupted.
3469
347029. When a sender address is verified, it is cached, to save repeating the test
3471 when there is more than one recipient in a message. However, when the
3472 verification involves a callout, it is possible for different callout
3473 options to be set for different recipients. It is too complicated to keep
3474 track of this in the cache, so now Exim always runs a verification when a
3475 callout is required, relying on the callout cache for the optimization.
3476 The overhead is duplication of the address routing, but this should not be
3477 too great.
3478
347930. Fixed a bug in callout caching. If a RCPT command caused the sender address
3480 to be verified with callout=postmaster, and the main callout worked but the
3481 postmaster check failed, the verification correctly failed. However, if a
3482 subsequent RCPT command asked for sender verification *without* the
3483 postmaster check, incorrect caching caused this verification also to fail,
3484 incorrectly.
3485
348631. Exim caches DNS lookup failures so as to avoid multiple timeouts; however,
3487 it was not caching the DNS options (qualify_single, search_parents) that
3488 were used when the lookup failed. A subsequent lookup with different
3489 options therefore always gave the same answer, though there were cases
3490 where it should not have. (Example: a "domains = !$mx_any" option on a
3491 dnslookup router: the "domains" option is always processed without any
3492 widening, but the router might have qualify_single set.) Now Exim uses the
3493 cached value only when the same options are set.
3494
349532. Added John Jetmore's "exipick" utility to the distribution.
3496
349733. GnuTLS: When an attempt to start a TLS session fails for any reason other
3498 than a timeout (e.g. a certificate is required, and is not provided), an
3499 Exim server now closes the connection immediately. Previously it waited for
3500 the client to close - but if the client is SSL, it seems that they each
3501 wait for each other, leading to a delay before one of them times out.
3502
350334: GnuTLS: Updated the code to use the new GnuTLS 1.0.0 API. I have not
3504 maintained 0.8.x compatibility because I don't think many are using it, and
3505 it is clearly obsolete.
3506
350735. Added TLS support for CRLs: a tls_crl global option and one for the smtp
3508 transport.
3509
351036. OpenSSL: $tls_certificate_verified was being set to 1 even if the
3511 client certificate was expired. A simple patch fixes this, though I don't
3512 understand the full logic of why the verify callback is called multiple
3513 times.
3514
351537. OpenSSL: a patch from Robert Roselius: "Enable client-bug workaround.
3516 Versions of OpenSSL as of 0.9.6d include a 'CBC countermeasure' feature,
3517 which causes problems with some clients (such as the Certicom SSL Plus
3518 library used by Eudora). This option, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS,
3519 disables the coutermeasure allowing Eudora to connect."
3520
352138. Exim was not checking that a write() to a log file succeeded. This could
3522 lead to Bad Things if a log got too big, in particular if it hit a file
3523 size limit. Exim now panics and dies if it cannot write to a log file, just
3524 as it does if it cannot open a log file.
3525
352639. Modified OS/Makefile-Linux so that it now contains
3527
3528 CFLAGS=-O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
3529
3530 The two -D definitions ensure that Exim is compiled with large file
3531 support, which makes it possible to handle log files that are bigger than
3532 2^31.
3533
353440. Fixed a subtle caching bug: if (in an ACL or a set of routers, for
3535 instance) a domain was checked against a named list that involved a lookup,
3536 causing $domain_data to be set, then another domain was checked against the
3537 same list, then the first domain was re-checked, the value of $domain_data
3538 after the final check could be wrong. In particular, if the second check
3539 failed, it could be set empty. This bug probably also applied to
3540 $localpart_data.
3541
354241. The strip_trailing_dot option was not being applied to the address given
3543 with the -f command-line option.
3544
354542. The code for reading a message's header from the spool was incrementing
3546 $received_count, but never initializing it. This meant that the value was
3547 incorrect (doubled) while delivering a message in the same process in which
3548 it was received. In the most common configuration of Exim, this never
3549 happens - a fresh exec is done - but it can happen when
3550 deliver_drop_privilege is set.
3551
355243. When Exim logs an SMTP synchronization error - client data sent too soon -
3553 it now includes up to 150 characters of the unexpected data in the log
3554 line.
3555
355644. The exim_dbmbuild utility uses fixed size buffers for reading input lines
3557 and building data strings. The size of both of these buffers was 10 000
3558 bytes - far larger than anybody would *ever* want, thought I. Needless to
3559 say, somebody hit the limit. I have increased the maximum line length to
3560 20 000 and the maximum data length of concatenated lines to 100 000. I have
3561 also fixed two bugs, because there was no checking on these buffers. Tsk,
3562 tsk. Now exim_dbmbuild gives a message and exits with an error code if a
3563 buffer is too small.
3564
356545. The exim_dbmbuild utility did not support quoted keys, as Exim does in
3566 lsearch lookups. Now it does.
3567
356846. When parsing a route_list item in a manualroute router, a fixed-length
3569 buffer was used for the list of hosts. I made this 1024 bytes long,
3570 thinking that nobody would ever have a list of hosts that long. Wrong.
3571 Somebody had a whole pile of complicated expansion conditions, and the
3572 string was silently truncated, leading to an expansion error. It turns out
3573 that it is easier to change to an unlimited length (owing to other changes
3574 that have happened since this code was originally written) than to build
3575 structure for giving a limitation error. The length of the item that
3576 expands into the list of hosts is now unlimited.
3577
357847. The lsearch lookup could not handle data where the length of text line was
3579 more than 4095 characters. Such lines were truncated, leading to shortened