Use "not accepted" rather than "not completed" for non-accepted messages
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
79749a79 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.492 2007/03/13 11:26:49 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
161 "Completed" line in the log. When such a message was selected by exigrep,
162 it was listed as "not completed". Such messages can be identified by the
163 lack of a "<=" line in the log, and they are now listed as "not
164 accepted".
165
b4ed4da0 166
5dd1517f
PH
167Exim version 4.66
168-----------------
169
170PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
171 fixed by 4.65/MH/01 (is this a record?) are fixed:
172
173 (i) An empty string was always treated as zero by the numeric comparison
174 operators. This behaviour has been restored.
175
176 (ii) It is documented that the numeric comparison operators always treat
177 their arguments as decimal numbers. This was broken in that numbers
178 starting with 0 were being interpreted as octal.
179
180 While fixing these problems I realized that there was another issue that
181 hadn't been noticed. Values of message_size_limit (both the global option
182 and the transport option) were treated as octal if they started with 0.
183 The documentation was vague. These values are now always treated as
184 decimal, and I will make that clear in the documentation.
185
186
93cfa765
TK
187Exim version 4.65
188-----------------
189
190TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
191 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
192 versions. (#438)
193
d6066548
MH
194MH/01 Don't check that the operands of numeric comparison operators are
195 integers when their expansion is in "skipping" mode (fixes bug
196 introduced by 4.64-PH/07).
197
4362ff0d
PH
198PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
199 child addresses, Exim now panics and dies. Previously, because the count
200 is held in a short int, deliveries were likely to be lost. As such a
201 large number of recipients for a single message is ridiculous
202 (performance will be very, very poor), I have chosen to impose a limit
203 rather than extend the field.
204
93cfa765 205
944e9e9c
TF
206Exim version 4.64
207-----------------
aa41d2de 208
21d74bd9
TK
209TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
210 leftover -K file (the existence of which was triggered by #402).
211 While we were at it, introduced process PID as part of the -K
212 filename. This should rule out race conditions when creating
213 these files.
214
215TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
216 processing considerably. Previous code took too long for large mails,
217 triggering a timeout which in turn triggers #401.
218
219TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
220 in the DK code in transports.c. sendfile() is not really portable,
221 hence the _LINUX specificness.
944e9e9c
TF
222
223TF/01 In the add_headers option to the mail command in an Exim filter,
224 there was a bug that Exim would claim a syntax error in any
225 header after the first one which had an odd number of characters
226 in the field name.
227
2b1c6e3a
PH
228PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
229 callout verification, Exim cached a "reject" for the entire domain. This
230 is correct for most verifications, but it is not correct for a recipient
231 verification with use_sender or use_postmaster set, because in that case
232 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
233 case of MAIL FROM:<> rejection from other early rejections (e.g.
234 rejection of HELO). When verifying a recipient using a non-null MAIL
235 address, the cache is ignored if it shows MAIL FROM:<> rejection.
236 Whatever the result of the callout, the value of the domain cache is
237 left unchanged (for any other kind of callout, getting as far as trying
238 RCPT means that the domain itself is ok).
239
1f872c80
PH
240PH/02 Tidied a number of unused variable and signed/unsigned warnings that
241 gcc 4.1.1 threw up.
242
243PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
244 manifest itself as EPIPE rather than ECONNECT. When tidying away a
245 session, the daemon ignores ECONNECT errors and logs others; it now
246 ignores EPIPE as well.
247
d203e649
PH
248PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
249 (quoted-printable decoding).
250
cc2ed8f7 251PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 252 later the small subsequent patch to fix an introduced bug.
f951fd57 253
ddfcd446
PH
254PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
255
d45b1de8
PH
256PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
257
258PH/08 An error is now given if message_size_limit is specified negative.
259
38a0a95f 260PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 261 to be given (somewhat) arbitrary names.
38a0a95f 262
a2405d83
JJ
263JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
264 in 4.64-PH/09.
265
266JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
267 miscellaneous code fixes
268
6ea85e9a
PH
269PH/10 Added the log_reject_target ACL modifier to specify where to log
270 rejections.
271
26da7e20
PH
272PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
273 hostname. This is wrong, because it relates to the incoming message (and
274 probably the interface on which it is arriving) and not to the outgoing
275 callout (which could be using a different interface). This has been
276 changed to use the value of the helo_data option from the smtp transport
277 instead - this is what is used when a message is actually being sent. If
278 there is no remote transport (possible with a router that sets up host
279 addresses), $smtp_active_hostname is used.
6ea85e9a 280
14aa5a05 281PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 282 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
283 (a) The code assumed that strncpy() returns a negative number on buffer
284 overflow, which isn't the case. Replaced with Exim's string_format()
285 function.
286 (b) There were several signed/unsigned issues. I just did the minimum
287 hacking in of casts. There is scope for a larger refactoring.
288 (c) The code used strcasecmp() which is not a standard C function.
289 Replaced with Exim's strcmpic() function.
290 (d) The code set only $1; it now sets $auth1 as well.
291 (e) A simple test gave the error "authentication client didn't specify
292 service in request". It would seem that Dovecot has changed its
293 interface. Fortunately there's a specification; I followed it and
294 changed what the client sends and it appears to be working now.
295
ff75a1f7
PH
296PH/13 Added $message_headers_raw to provide the headers without RFC 2047
297 decoding.
298
e6f6568e
PH
299PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
300 address A is aliased to B and C, where B exists and C does not. Without
301 -v the output is "A verified" because verification stops after a
302 successful redirection if more than one address is generated. However,
303 with -v the child addresses are also verified. Exim was outputting "A
304 failed to verify" and then showing the successful verification for C,
305 with its parentage. It now outputs "B failed to verify", showing B's
306 parentage before showing the successful verification of C.
307
d6f6e0dc
PH
308PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
309 look up a TXT record in a specific list after matching in a combined
310 list.
311
322050c2
PH
312PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
313 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
314 they consult the DNS. I had assumed they would set it the way they
315 wanted; and indeed my experiments on Linux seem to show that in some
316 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
317 To be on the safe side, however, I have now made the interface to
318 host_find_byname() similar to host_find_bydns(), with an argument
319 containing the DNS resolver options. The host_find_byname() function now
320 sets these options at its start, just as host_find_bydns() does. The smtp
321 transport options dns_qualify_single and dns_search_parents are passed to
322 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
323 of host_find_byname() use the default settings of RES_DEFNAMES
324 (qualify_single) but not RES_DNSRCH (search_parents).
325
08955dd3
PH
326PH/17 Applied (a modified version of) Nico Erfurth's patch to make
327 spool_read_header() do less string testing, by means of a preliminary
328 switch on the second character of optional "-foo" lines. (This is
329 overdue, caused by the large number of possibilities that now exist.
330 Originally there were few.) While I was there, I also converted the
331 str(n)cmp tests so they don't re-test the leading "-" and the first
332 character, in the hope this might squeeze out yet more improvement.
333
1eccaa59
PH
334PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
335 flag allowing group syntax was set by the header_syntax check but not
336 turned off, possible causing trouble later; (2) The flag was not being
337 set at all for the header_verify test, causing "group"-style headers to
338 be rejected. I have now set it in this case, and also caused header_
339 verify to ignore an empty address taken from a group. While doing this, I
340 came across some other cases where the code for allowing group syntax
341 while scanning a header line wasn't quite right (mostly, not resetting
342 the flag correctly in the right place). These bugs could have caused
343 trouble for malformed header lines. I hope it is now all correct.
344
602e59e5
PH
345PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
346 with the "reply" argument non-NULL. The code, however (which originally
347 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
348 but it didn't always do it. This confused somebody who was copying the
349 code for some other use. I have removed all the tests.
350
411ef850
PH
351PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
352 feature that was used to support insecure browsers during the U.S. crypto
353 embargo. It requires special client support, and Exim is probably the
354 only MTA that supported it -- and would never use it because real RSA is
355 always available. This code has been removed, because it had the bad
356 effect of slowing Exim down by computing (never used) parameters for the
357 RSA_EXPORT functionality.
358
7befa435
PH
359PH/21 On the advice of Timo Sirainen, added a check to the dovecot
360 authenticator to fail if there's a tab character in the incoming data
361 (there should never be unless someone is messing about, as it's supposed
362 to be base64-encoded). Also added, on Timo's advice, the "secured" option
363 if the connection is using TLS or if the remote IP is the same as the
364 local IP, and the "valid-client-cert option" if a client certificate has
365 been verified.
366
48da4259 367PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
368 authenticators. This can be used for authorization after authentication
369 succeeds. (In the case of plaintext, it servers for both authentication
370 and authorization.)
371
48da4259
PH
372PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
373 if any retry times were supplied.
374
d1d5595c
PH
375PH/24 Exim crashed if verify=helo was activated during an incoming -bs
376 connection, where there is no client IP address to check. In this
377 situation, the verify now always succeeds.
378
0ef732d9
PH
379PH/25 Applied John Jetmore's -Mset patch.
380
328895cc
PH
381PH/26 Added -bem to be like -Mset, but loading a message from a file.
382
fd700877
PH
383PH/27 In a string expansion for a processed (not raw) header when multiple
384 headers of the same name were present, leading whitespace was being
385 removed from all of them, but trailing whitespace was being removed only
386 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
387 before concatenation. Completely empty headers in a concatenation (as
388 before) are ignored.
fd700877 389
8dce1a6f
PH
390PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
391 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
392
17af4a17
PH
393PH/29 [Removed. This was a change that I later backed out, and forgot to
394 correct the ChangeLog entry (that I had efficiently created) before
395 committing the later change.]
f6c332bd
PH
396
397PH/30 Exim was sometimes attempting to deliver messages that had suffered
398 address errors (4xx response to RCPT) over the same connection as other
399 messages routed to the same hosts. Such deliveries are always "forced",
400 so retry times are not inspected. This resulted in far too many retries
401 for the affected addresses. The effect occurred only when there were more
402 hosts than the hosts_max_try setting in the smtp transport when it had
403 the 4xx errors. Those hosts that it had tried were not added to the list
404 of hosts for which the message was waiting, so if all were tried, there
405 was no problem. Two fixes have been applied:
406
407 (i) If there are any address or message errors in an SMTP delivery, none
408 of the hosts (tried or untried) are now added to the list of hosts
409 for which the message is waiting, so the message should not be a
410 candidate for sending over the same connection that was used for a
411 successful delivery of some other message. This seems entirely
412 reasonable: after all the message is NOT "waiting for some host".
413 This is so "obvious" that I'm not sure why it wasn't done
414 previously. Hope I haven't missed anything, but it can't do any
415 harm, as the worst effect is to miss an optimization.
416
417 (ii) If, despite (i), such a delivery is accidentally attempted, the
418 routing retry time is respected, so at least it doesn't keep
419 hammering the server.
420
c1114884
PH
421PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
422 in ${readsocket because some servers need this prod.
423
7a0743eb
PH
424PH/32 Added some extra debug output when updating a wait-xxx database.
425
0d85fa3f
PH
426PH/33 The hint "could be header name not terminated by colon", which has been
427 given for certain expansion errors for a long time, was not being given
428 for the ${if def:h_colon_omitted{... case.
429
1bf43b78
PH
430PH/34 The spec says: "With one important exception, whenever a domain list is
431 being scanned, $domain contains the subject domain." There was at least
432 one case where this was not true.
433
520de300
PH
434PH/35 The error "getsockname() failed: connection reset by peer" was being
435 written to the panic log as well as the main log, but it isn't really
436 panic-worthy as it just means the connection died rather early on. I have
437 removed the panic log writing for the ECONNRESET error when getsockname()
438 fails.
439
48c7f9e2
PH
440PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
441 runs only) independently of the message's sender address. This meant
442 that, if the 4xx error was in fact related to the sender, a different
443 message to the same recipient with a different sender could confuse
444 things. In particualar, this can happen when sending to a greylisting
445 server, but other circumstances could also provoke similar problems.
446 I have changed the default so that the retry time for these errors is now
447 based a combination of the sender and recipient addresses. This change
448 can be overridden by setting address_retry_include_sender=false in the
449 smtp transport.
450
99ea1c86
PH
451PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
452 remote server are returned as part of bounce messages. This was not
453 happening for LMTP over a pipe (the lmtp transport), but now it is the
454 same for both kinds of LMTP.
455
a2042e78
PH
456PH/38 Despite being documented as not happening, Exim was rewriting addresses
457 in header lines that were in fact CNAMEs. This is no longer the case.
458
4fbcfc2e
PH
459PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
460 and queue runs started by the daemon processed all messages. This has
461 been fixed so that -R and -S can now usefully be given with -q<time>.
462
aa41d2de
PH
463PH/40 Import PCRE release 6.7 (fixes some bugs).
464
af561417
PH
465PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
466
3cc66b45
PH
467PH/42 Give an error if -q is specified more than once.
468
194cc0e4
PH
469PH/43 Renamed the variables $interface_address and $interface_port as
470 $received_ip_address and $received_port, to make it clear that these
471 values apply to message reception, and not to the outgoing interface when
472 a message is delivered. (The old names remain recognized, of course.)
473
a401ddaa
PH
474PH/44 There was no timeout on the connect() call when using a Unix domain
475 socket in the ${readsocket expansion. There now is.
476
4e88a19f
PH
477PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
478 be meaningful with "accept".
479
d7d7b289
SC
480SC/01 Eximstats V1.43
481 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
482
483SC/02 Eximstats V1.44
484 Use a glob alias rather than an array ref in the generated
485 parser. This improves both readability and performance.
486
487SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
488 Collect SpamAssassin and rejection statistics.
489 Don't display local sender or destination tables unless
490 there is data to show.
491 Added average volumes into the top table text output.
492
493SC/04 Eximstats V1.46
494 Collect data on the number of addresses (recipients)
495 as well as the number of messages.
496
497SC/05 Eximstats V1.47
498 Added 'Message too big' to the list of mail rejection
499 reasons (thanks to Marco Gaiarin).
500
501SC/06 Eximstats V1.48
502 Mainlog lines which have GMT offsets and are too short to
503 have a flag are now skipped.
504
505SC/07 Eximstats V1.49 (Alain Williams)
506 Added the -emptyok flag.
507
508SC/08 Eximstats V1.50
509 Fixes for obtaining the IP address from reject messages.
510
0ea2a468
JJ
511JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
512 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
513 whitesspace changes from 4.64-PH/27
514
515JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
516 match 4.64-PH/13
517
518JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
519 are found, allow negative numbers in numeric criteria)
520
521JJ/06 exipick.20061117.2, added new $message_body_missing variable
522
523JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
524 to match changes made in 4.64-PH/43
525
8a10f5a4
PH
526PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
527
30e18802
PH
528PH/47 Put in an explicit test for a DNS lookup of an address record where the
529 "domain" is actually an IP address, and force a failure. This locks out
530 those revolvers/nameservers that support "A-for-A" lookups, in
531 contravention of the specifications.
532
55728a4f
PH
533PH/48 When a host name was looked up from an IP address, and the subsequent
534 forward lookup of the name timed out, the host name was left in
535 $sender_host_name, contrary to the specification.
d7d7b289 536
d7837193
PH
537PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
538 restricted to single-key lookups, Exim was not diagnosing an error if
539 * or *@ was used with a query-style lookup.
540
87054a31
PH
541PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
542
ea2c01d2
MH
543MH/01 local_scan ABI version incremented to 1.1. It should have been updated
544 long ago, but noone interested enough thought of it. Let's just say that
545 the "1.1" means that there are some new functions that weren't there at
546 some point in the past.
547
e4fa6968
PH
548PH/51 Error processing for expansion failure of helo_data from an smtp
549 transport during callout processing was broken.
550
56f5d9bd
PH
551PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
552 tested/used via the -bh/-bhc/-bs options.
553
922e1c28
PH
554PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
555 bug, fixed in subsequent PCRE releases).
556
21eb6e72
PH
557PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
558 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
559
a0540757
PH
560PH/55 Check for a ridiculously long file name in exim_dbmbuild.
561
944e9e9c 562
478be7b0
SC
563Exim version 4.63
564-----------------
565
566SC/01 Use a glob alias rather than an array ref in eximstats generated
567 parser. This improves both readability and performance.
568
569SC/02 Collect SpamAssassin and rejection statistics in eximstats.
570 Don't display local sender or destination tables in eximstats unless
571 there is data to show.
572 Added average volumes into the eximstats top table text output.
573
574SC/03 Collect data on the number of addresses (recipients) as well
575 as the number of messages in eximstats.
576
2b965a65
TF
577TF/01 Correct an error in the documentation for the redirect router. Exim
578 does (usually) call initgroups() when daemonizing.
478be7b0 579
45b91596
PH
580TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
581 with consistent privilege compared to when running as a daemon.
478be7b0 582
c59f5781
TF
583TF/03 Note in the spec that $authenticated_id is not set for local
584 submissions from trusted users.
585
90fc3069
TF
586TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
587 Thanks to Dean Brooks <dean@iglou.com> for the patch.
588
6083aca0
TF
589TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
590 by adding some example configuration directives to the default
591 configuration file. A little bit of work is required to uncomment the
592 directives and define how usernames and passwords are checked, but
593 there is now a framework to start from.
594
765b530f
PH
595PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
596 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
597 without this. I don't know how relevant this is to other LDAP libraries.
598
4e167a8c
PH
599PH/02 Add the verb name to the "unknown ACL verb" error.
600
4608d683
PH
601PH/03 Magnus Holmgren's patch for filter_prepend_home.
602
b8dc3e4a
PH
603PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
604
5418e93b
PH
605PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
606 directory not expanded when it should be if an expanded home directory
607 was set for the address (which is overridden by the transport).
608
b4a9bda2
PH
609PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
610 libradius.
611
45b91596
PH
612PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
613 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
614 because it is too late at that time, and has no effect.
615
5547e2c5
PH
616PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
617 security issue with \' (bugzilla #107). I could not use the
618 PQescapeStringConn() function, because it needs a PGconn value as one of
619 its arguments.
620
dbcef0ea
PH
621PH/08 When testing addresses using -bt, indicate those final addresses that
622 are duplicates that would not cause an additional delivery. At least one
623 person was confused, thinking that -bt output corresponded to deliveries.
624 (Suppressing duplicates isn't a good idea as you lose the information
625 about possibly different redirections that led to the duplicates.)
626
25257489
PH
627PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
628 systems where poll() doesn't work, in particular OS X.
629
c816d124
PH
630PH/10 Added more information to debugging output for retry time not reached.
631
a9ccd69a
PH
632PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
633 operations in malware.c.
634
75fa1910
PH
635PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
636 signatures.
637
a7d7aa58
PH
638PH/13 If write_rejectlog was set false when logging was sent to syslog with
639 syslog_duplication set false, log lines that would normally be written
640 both the the main log and to the reject log were not written to syslog at
641 all.
642
42119b09
PH
643PH/14 In the default configuration, change the use of "message" in ACL warn
644 statements to "add_header".
645
41609df5
PH
646PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
647 not followed by a command (e.g. "seen endif").
648
a5bd321b
PH
649PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
650 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
651 latter.
652
e85a7ad5 653PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
654 so that it is now:
655
e85a7ad5
PH
656 ${if or { \
657 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
658 { match{$h_precedence:}{(?i)bulk|list|junk} } \
659 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
660 }{no}{yes}}
661
e85a7ad5
PH
662 The Auto-Submitted: and various List- headers are standardised, whereas I
663 don't think Precedence: ever was.
5dff5817 664
d8fe1c03
PH
665PH/18 Refactored debugging code in route_finduser() to show more information,
666 in particular, the error code if getpwnam() issues one.
667
16282d2b
PH
668PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
669 This is apparently needed in addition to the PH/07 change above to avoid
670 any possible encoding problems.
671
35d40a98
PH
672PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
673 but not after initializing Perl.
674
034d99ab
PH
675PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
676 output them only if debugging. By default they are written stderr,
677 apparently, which is not desirable.
678
6ec97b1b
PH
679PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
680 queries.
681
e22ca4ac
JJ
682JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
683 --not options
684
685JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
686
33d73e3b
PH
687PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
688 authenticated or an ident call has been made. Suppress the default
689 values for $authenticated_id and $authenticated_sender (but permit -oMai
690 and -oMas) when testing with -bh.
691
9ecb03f3
PH
692PH/24 Re-jigged the order of the tests in the default configuration so that the
693 tests for valid domains and recipients precede the DNS black list and CSA
694 tests, on the grounds that those ones are more expensive.
695
084efe8d
PH
696PH/25 Exim was not testing for a space following SMTP commands such as EHLO
697 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
698 This bug exists in every version of Exim that I still have, right back to
699 0.12.
700
366fc9f0
PH
701PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
702 However, an attempt to turn on case-sensitivity in a regex key by
703 including (?-i) didn't work because the subject string was already
704 lowercased, and the effects were non-intuitive. It turns out that a
705 one-line patch can be used to allow (?-i) to work as expected.
706
c59f5781 707
c887c79e
TF
708Exim version 4.62
709-----------------
710
711TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
712 other effects) broke the use of negated acl sub-conditions.
713
1cce3af8
PH
714PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
715 patch).
716
afb3eaaf
PH
717PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
718 "Deny" causes Exim to reject the incoming connection with a 554 error.
719 Unfortunately, if there is a major crisis, such as a disk failure,
720 tcp-wrappers gives "deny", whereas what one would like would be some
721 kind of temporary error. A kludge has been added to help with this.
722 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
723 554 error is used if errno is still zero or contains ENOENT (which occurs
724 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
725 451 error is used.
726
e173618b
PH
727PH/03 Add -lutil to the default FreeBSD LIBS setting.
728
dd16e114
PH
729PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
730 errors. Otherwise a message that provokes a temporary error (when other
731 messages do not) can cause a whole host to time out.
732
f7fd3850
PH
733PH/05 Batch deliveries by appendfile and pipe transports did not work when the
734 addresses were routed directly to files or pipes from a redirect router.
735 File deliveries just didn't batch; pipe deliveries might have suffered
736 odd errors.
737
d87df92c
PH
738PH/06 A failure to get a lock for a hints database would erroneously always say
739 "Failed to get write lock", even when it was really a read lock.
740
7e9f683d
PH
741PH/07 The appendfile transport was creating MBX lock files with a fixed mode
742 of 0600. This has been changed to use the value of the lockfile_mode
743 option (which defaults to 0600).
744
bfad5236
PH
745PH/08 Applied small patch from the Sieve maintainer.
746
01c490df
PH
747PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
748 folder from quota calculations, a direct delivery into this folder messed
749 up the contents of the maildirsize file. This was because the regex was
750 used only to exclude .Trash (or whatever) when the size of the mailbox
751 was calculated. There was no check that a delivery was happening into an
752 excluded directory. This bug has been fixed by ignoring all quota
753 processing for deliveries into excluded directories.
754
d6629cdc
PH
755PH/10 Added the maildirfolder_create_regex option to appendfile.
756
1cce3af8 757
214e2000
PH
758Exim version 4.61
759-----------------
760
761PH/01 The code for finding all the local interface addresses on a FreeBSD
762 system running IPv6 was broken. This may well have applied to all BSD
763 systems, as well as to others that have similar system calls. The broken
764 code found IPv4 interfaces correctly, but gave incorrect values for the
765 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
766 that it would not match correctly against @[] and not recognize the IPv6
767 addresses as local.
768
f9daeae0
PH
769PH/02 The ipliteral router was not recognizing addresses of the form user@
770 [ipv6:....] because it didn't know about the "ipv6:" prefix.
771
7e66e54d
PH
772PH/03 Added disable_ipv6.
773
c8ea1597
PH
774PH/04 Changed $reply_address to use the raw form of the headers instead of the
775 decoded form, because it is most often used to construct To: headers
776 lines in autoreplies, and the decoded form may well be syntactically
777 invalid. However, $reply_address has leading white space removed, and all
778 newlines turned into spaces so that the autoreply transport does not
779 grumble.
780
911f6fde
PH
781PH/05 If group was specified without a user on a router, and no group or user
782 was specified on a transport, the group from the router was ignored.
783
47ca6d6c
PH
784PH/06 Increased the number of ACL variables to 20 of each type, and arranged
785 for visible compile-time settings that can be used to change these
786 numbers, for those that want even more. Backwards compatibility with old
787 spool files has been maintained. However, going back to a previous Exim
788 release will lost any variables that are in spool files.
789
ed0e9820
PH
790PH/07 Two small changes when running in the test harness: increase delay when
791 passing a TCP/IP connection to a new process, in case the original
792 process has to generate a bounce, and remove special handling of
793 127.0.0.2 (sic), which is no longer necessary.
794
eff37e47
PH
795PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
796 be the same on different OS.
797
1921d2ea
PH
798PH/09 Moved a debug statement in filter processing to avoid a race problem when
799 testing.
800
b3f69ca8
JJ
801JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
802 whether --show-vars was specified or not
803
804JJ/02 exipick: Added support for new ACL variable spool format introduced
805 in 4.61-PH/06
806
424a1c63
PH
807PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
808 syntactically invalid From: or Reply-to: line, and a filter used this to
809 generate an autoreply, and therefore failed to obtain an address for the
810 autoreply, Exim could try to deliver to a non-existent relative file
811 name, causing unrelated and misleading errors. What now happens is that
812 it logs this as a hard delivery error, but does not attempt to create a
813 bounce message.
814
7a100415
PH
815PH/11 The exinext utility has a -C option for testing purposes, but although
816 the given file was scanned by exinext itself; it wasn't being passed on
817 when Exim was called.
818
19b9dc85
PH
819PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
820 an end-of-file indication when reading a command response.
821
309bd837
PH
822PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
823 compiled. In many other places in Exim, IPv6 addresses are always
824 recognized, so I have changed this. It also means that IPv4 domain
825 literals of the form [IPV4:n.n.n.n] are now always recognized.
826
59e82a2a
PH
827PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
828 used if the router is not running as root, for example, when verifying at
829 ACL time, or when using -bh. The debugging output from this situation was
830 non-existent - all you got was a failure to exec. I have made two
831 changes:
832
833 (a) Failures to set uid/gid, the current directory, or a process leader
834 in a subprocess such as that created by queryprogram now generate
835 suitable debugging ouput when -d is set.
836
837 (b) The queryprogram router detects when it is not running as root,
838 outputs suitable debugging information if -d is set, and then runs
839 the subprocess without attempting to change uid/gid.
840
9edc04ce
PH
841PH/15 Minor change to Makefile for building test_host (undocumented testing
842 feature).
843
1349e1e5
PH
844PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
845 additional section of a DNS packet that returns MX or SRV records.
846 Instead, it always explicitly searches for A/AAAA records. This avoids
847 major problems that occur when a DNS server includes only records of one
848 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
849 fixed another bug: if SRV records were looked up and the corresponding
850 address records were *not* found in the additional section, the port
851 values from the SRV records were lost.
852
ea49d0e1
PH
853PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
854 using the correct key (the original address) when searching the retry
855 rules in order to find which one to use for generating the retry hint.
856
064a94c9
PH
857PH/18 If quota_warn_message contains a From: header, Exim now refrains from
858 adding the default one. Similarly, if it contains a Reply-To: header, the
859 errors_reply_to option, if set, is not used.
860
727071f8
PH
861PH/19 When calculating a retry time, Exim used to measure the "time since
862 failure" by looking at the "first failed" field in the retry record. Now
863 it does not use this if it is later than than the arrival time of the
864 message. Instead it uses the arrival time. This makes for better
865 behaviour in cases where some deliveries succeed, thus re-setting the
866 "first failed" field. An example is a quota failure for a huge message
867 when small messages continue to be delivered. Without this change, the
868 "time since failure" will always be short, possible causing more frequent
869 delivery attempts for the huge message than are intended.
dd16e114 870 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 871
f78eb7c6
PH
872PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
873 $1, $2, $3) because the numerical variables can be reset during some
874 expansion items (e.g. "match"), thereby losing the authentication data.
875
21c28500
PH
876PH/21 Make -bV show the size of off_t variables so that the test suite can
877 decide whether to run tests for quotas > 2G.
878
879PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
880 mailbox_size, and mailbox_filecount in the appendfile transport. If a
881 filecount value is greater than 2G or if a quota value is greater than 2G
882 on a system where the size of off_t is not greater than 4, a panic error
883 is given.
884
1688f43b
PH
885PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
886 never match. The debug and -bh output now contains an explicit error
887 message indicating a malformed IPv4 address or mask.
888
889PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
890 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
891 PH/23 above applies.
892
9675b384
PH
893PH/25 Do not write to syslog when running in the test harness. The only
894 occasion when this arises is a failure to open the main or panic logs
895 (for which there is an explicit test).
896
6a3f1455
PH
897PH/26 Added the /no_tell option to "control=freeze".
898
dac79d3e
PH
899PH/27 If a host name lookup failed very early in a connection, for example, if
900 the IP address matched host_lookup and the reverse lookup yielded a name
901 that did not have a forward lookup, an error message of the form "no IP
902 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
903 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 904
5977a0b3
PH
905PH/28 An enabling patch from MH: add new function child_open_exim2() which
906 allows the sender and the authenticated sender to be set when
907 submitting a message from within Exim. Since child_open_exim() is
908 documented for local_scan(), the new function should be too.
909
c91535f3
PH
910PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
911 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
912 results in an empty string is now treated as unset.
913
0d46a8c8
PH
914PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
915
278c6e6c
PH
916PH/31 Added sender_verify_fail logging option.
917
2cbb4081
PH
918PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
919 needed by RFC 822 but not by RFC 2822 was commented out. I have now
920 tidied the source and removed it altogether.
921
3eef829e
PH
922PH/33 When a queue run was abandoned because the load average was too high, a
923 log line was always written; now it is written only if the queue_run log
924 selector is set. In addition, the log line for abandonment now contains
925 information about the queue run such as the pid. This is always present
926 in "start" and "stop" lines but was omitted from the "abandon" line.
927
1ab95fa6
PH
928PH/34 Omit spaces between a header name and the colon in the error message that
929 is given when verify = headers_syntax fails (if there are lots of them,
930 the message gets confusing).
931
230205fc
PH
932PH/35 Change the default for dns_check_names_pattern to allow slashes within
933 names, as there are now some PTR records that contain slashes. This check
934 is only to protect against broken name servers that fall over on strange
935 characters, so the fact that it applies to all lookups doesn't matter.
936
75e0e026
PH
937PH/36 Now that the new test suite is complete, we can remove some of the
938 special code in Exim that was needed for the old test suite. For example,
939 sorting DNS records because real resolvers return them in an arbitrary
940 order. The new test suite's fake resolver always returns records in the
941 same order.
942
943PH/37 When running in the test harness, use -odi for submitted messages (e.g.
944 bounces) except when queue_only is set, to avoid logging races between
945 the different processes.
946
145396a6
PH
947PH/38 Panic-die if .include specifies a non-absolute path.
948
3cd34f13
PH
949PH/39 A tweak to the "H" retry rule from its user.
950
11121d3d
JJ
951JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
952 a label. They prevented compilation on older perls.
953
954JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
955 a warning to be raised on newish perls.
956
957JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
958 on queue. Changes to match documented behaviour of showing count of
959 messages matching specified criteria.
960
8def5aaf
PH
961PH/40 Changed the default ident timeout from 30s to 5s.
962
929ba01c
PH
963PH/41 Added support for the use of login_cap features, on those BSD systems
964 that have them, for controlling the resources used by pipe deliveries.
965
2632889e
PH
966PH/42 The content-scanning code uses fopen() to create files in which to put
967 message data. Previously it was not paying any attention to the mode of
968 the files. Exim runs with umask(0) because the rest of the code creates
969 files with open(), and sets the required mode explicitly. Thus, these
970 files were ending up world-writeable. This was not a big issue, because,
971 being within the spool directory, they were not world-accessible. I have
972 created a function called modefopen, which takes an additional mode
973 argument. It sets umask(777), creates the file, chmods it to the required
974 mode, then resets the umask. All the relevant calls to fopen() in the
975 content scanning code have been changed to use this function.
976
944a9c55
PH
977PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
978 to 24 hours. This avoids potential overflow problems when processing G
979 and H retry rules. I suspect nobody ever tinkers with this value.
980
4a23603b
PH
981PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
982
4730f942
PH
983PH/45 When the plaintext authenticator is running as a client, the server's
984 challenges are checked to ensure they are valid base64 strings. By
985 default, the authentication attempt is cancelled if an invalid string is
986 received. Setting client_ignore_invalid_base64 true ignores these errors.
987 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
988 they are received. Thus, the responses can be made to depend on the
989 challenges. If an invalid string is ignored, an empty string is placed in
990 the variable.
991
30dba1e6
PH
992PH/46 Messages that are created by the autoreply transport now contains a
993 References: header, in accordance with RFCs 2822 and 3834.
994
382afc6b
PH
995PH/47 Added authenticated_sender_force to the smtp transport.
996
a86229cf
PH
997PH/48 The ${prvs expansion was broken on systems where time_t was long long.
998
50c99ba6
PH
999PH/49 Installed latest patch from the Sieve maintainer.
1000
d35e429d
PH
1001PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1002 was also set, the appendfile transport was unnecessarily scanning a
1003 directory of message files (e.g. for maildir delivery) to find the count
1004 of files (along with the size), even though it did not need this
1005 information. It now does the scan only if it needs to find either the
1006 size of the count of files.
1007
f90d018c
PH
1008PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1009
75def545
PH
1010PH/52 Two bugs concerned with error handling when the smtp transport is
1011 used in LMTP mode:
1012
1013 (i) Exim was not creating retry information for temporary errors given
1014 for individual recipients after the DATA command when the smtp transport
1015 was used in LMTP mode. This meant that they could be retried too
1016 frequently, and not timed out correctly.
1017
1018 (ii) Exim was setting the flag that allows error details to be returned
1019 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1020 recipients that were returned after the DATA command.
1021
1022PH/53 This is related to PH/52, but is more general: for any failing address,
1023 when detailed error information was permitted to be returned to the
1024 sender, but the error was temporary, then after the final timeout, only
1025 "retry timeout exceeded" was returned. Now it returns the full error as
1026 well as "retry timeout exceeded".
1027
c46782ef
PH
1028PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1029 do this, and (what is worse) MTAs that accept it.
1030
71fafd95
PH
1031PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1032 will now be deprecated.
1033
2c5db4fd
PH
1034PH/56 New os.c-cygwin from the Cygwin maintainer.
1035
9cf6b11a
JJ
1036JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1037 formats (previously only available in exim formats via -bpr, -bpru,
1038 and -bpra. Now also available in native and exiqgrep formats)
1039
1040JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1041 with very large, slow to parse queues
1042
1043JJ/08 exipick: added ! as generic prefix to negate any criteria format
1044
1045JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1046
898d150f
PH
1047PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1048 responses to authentication challenges, though it was showing the
1049 challenges; (ii) I've removed the CR characters from the debug output for
1050 SMTP output lines.
1051
46218253
PH
1052PH/58 Allow for the insertion of a newline as well as a space when a string
1053 is turned into more than one encoded-word during RFC 2047 encoding. The
1054 Sieve code now uses this.
1055
e97957bc
PH
1056PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1057 data_4xx, lost_connection, tls_required.
1058
81e509d7
PH
1059PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1060 message was being sent as an SMTP response.
1061
3d240ff7
PH
1062PH/61 Add -l and -k options to exicyclog.
1063
b37c4101
PH
1064PH/62 When verifying, if an address was redirected to one new address, so that
1065 verification continued, and the new address failed or deferred after
1066 having set something in $address_data, the value of $address_data was not
1067 passed back to the ACL. This was different to the case when no
1068 redirection occurred. The value is now passed back in both cases.
1069
79378e0f
PH
1070PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1071 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1072 use login_cap.h, so on its own it isn't the distinguishing feature. The
1073 new name refers directly to the setclassresources() function.
1074
e49c7bb4
PH
1075PH/65 Added configuration files for NetBSD3.
1076
d114ec46
PH
1077PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1078
f3d7df6c
PH
1079PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1080 is preferred over IPv4.
1081
715ab376
PH
1082PH/68 The bounce_return_message and bounce_return_body options were not being
1083 honoured for bounces generated during the reception of non-SMTP messages.
1084 In particular, this applied to messages rejected by the ACL. This bug has
1085 been fixed. However, if bounce_return_message is true and bounce_return_
1086 body is false, the headers that are returned for a non-SMTP message
1087 include only those that have been read before the error was detected.
1088 (In the case of an ACL rejection, they have all been read.)
1089
6b31b150
PH
1090PH/69 The HTML version of the specification is now built in a directory called
1091 spec_html instead of spec.html, because the latter looks like a path with
1092 a MIME-type, and this confuses some software.
1093
1094PH/70 Catch two compiler warnings in sieve.c.
1095
d515a917
PH
1096PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1097 function verify_get_ident() calls ip_connect() to connect a socket, but
1098 if the "connect()" function timed out, ip_connect() used to close the
1099 socket. However, verify_get_ident() also closes the socket later, and in
1100 between Exim writes to the log, which may get opened at this point. When
1101 the socket was closed in ip_connect(), the log could get the same file
1102 descriptor number as the socket. This naturally causes chaos. The fix is
1103 not to close the socket in ip_connect(); the socket should be closed by
1104 the function that creates it. There was only one place in the code where
1105 this was missing, in the iplookup router, which I don't think anybody now
1106 uses, but I've fixed it anyway.
1107
9b8fadde
PH
1108PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1109 well as to direct DNS lookups. Otherwise the handling of names in host
1110 lists is inconsistent and therefore confusing.
1111
214e2000 1112
5de37277
PH
1113Exim version 4.60
1114-----------------
1115
cc38ddbf
PH
1116PH/01 Two changes to the default runtime configuration:
1117
1118 (1) Move the checks for relay_from_hosts and authenticated clients from
1119 after to before the (commented out) DNS black list checks.
1120
1121 (2) Add control=submission to the relay_from_hosts and authenticated
1122 clients checks, on the grounds that messages accepted by these
1123 statements are most likely to be submissions.
5de37277 1124
72fdd6ae
PH
1125PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1126
1127 (1) Generate an error if the third argument for the ${prvs expansion is
1128 not a single digit.
1129
1130 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1131 string.
1132
1133 (3) Reset the variables that are obtained from the first argument of
1134 ${prvscheck and used in the second argument before leaving the code,
1135 because their memory is reclaimed, so using them afterwards may do
1136 silly things.
1137
1138 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1139 one (it's much easier than Tom thought :-).
1140
1141 (5) Because of (4), we can now allow for the use of $prvscheck_result
1142 inside the third argument.
cb9328de 1143
cb741023
PH
1144PH/03 For some reason, the default setting of PATH when running a command from
1145 a pipe transport was just "/usr/bin". I have changed it to
1146 "/bin:/usr/bin".
1147
f174f16e
PH
1148PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1149 anything to be listed in the output from -bV.
b2f5a032 1150
c25242d7
PH
1151PH/05 When a filter generated an autoreply, the entire To: header line was
1152 quoted in the delivery log line, like this:
1153
1154 => >A.N.Other <ano@some.domain> <original@ddress> ...
1155
1156 This has been changed so that it extracts the operative address. There
1157 may be more than one such address. If so, they are comma-separated, like
1158 this:
1159
1160 => >ano@some.domain,ona@other.domain <original@ddress> ...
1161
82c19f95
PH
1162PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1163 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1164 not being looked up in the rDNS to get a host name, Exim was showing the
1165 IP address twice in Received: lines, even though the IP addresses were
1166 identical. For example:
1167
1168 Received: from [1.2.3.4] (helo=[1.2.3.4])
1169
1170 However, if the real host name was known, it was omitting the HELO data
1171 if it matched the actual IP address. This has been tidied up so that it
1172 doesn't show the same IP address twice.
1173
d7ffbc12
PH
1174PH/07 When both +timestamp and +memory debugging was on, the value given by
1175 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1176 called by the debug printing, thereby overwriting the timestamp buffer.
1177 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1178
9f526266
PH
1179PH/08 When the original message was included in an autoreply transport, it
1180 always said "this is a copy of the message, including all the headers",
1181 even if body_only or headers_only was set. It now gives an appropriate
1182 message.
1183
87fcc8b9
PH
1184PH/09 Applied a patch from the Sieve maintainer which:
1185
1186 o fixes some comments
1187 o adds the (disabled) notify extension core
1188 o adds some debug output for the result of if/elsif tests
1189 o points to the current vacation draft in the documentation
1190 and documents the missing references header update
1191
1192 and most important:
1193
1194 o fixes a bug in processing the envelope test (when testing
1195 multiple envelope elements, the last element determinted the
1196 result)
1197
456682f5
PH
1198PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1199 Electronic Mail") by including:
1200
1201 Auto-submitted: auto-generated
1202
1203 in the messages that it generates (bounce messages and others, such as
1204 warnings). In the case of bounce messages for non-SMTP mesages, there was
1205 also a typo: it was using "Auto_submitted" (underscore instead of
1206 hyphen). Since every message generated by Exim is necessarily in response
1207 to another message, thes have all been changed to:
1208
1209 Auto-Submitted: auto-replied
1210
1211 in accordance with these statements in the RFC:
1212
1213 The auto-replied keyword:
1214
1215 - SHOULD be used on messages sent in direct response to another
1216 message by an automatic process,
1217
1218 - MUST NOT be used on manually-generated messages,
1219
1220 - MAY be used on Delivery Status Notifications (DSNs) and Message
1221 Disposition Notifications (MDNs),
1222
1223 - MUST NOT be used on messages generated by automatic or periodic
1224 processes, except for messages which are automatic responses to
1225 other messages.
1226
3e46c1aa
PH
1227PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1228 to the default Received: header definition.
456682f5 1229
49826d12
PH
1230PH/12 Added log selector acl_warn_skipped (default on).
1231
eba0c039
PH
1232PH/13 After a successful wildlsearch lookup, discard the values of numeric
1233 variables because (a) they are in the wrong storage pool and (b) even if
1234 they were copied, it wouldn't work properly because of the caching.
1235
a0d6ba8a
PH
1236PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1237 checking when decoding. Apparently there are clients that generate
1238 overlong encoded strings. Why am I not surprised?
1239
f0917727
PH
1240PH/15 If the first argument of "${if match_address" was not empty, but did not
1241 contain an "@" character, Exim crashed. Now it writes a panic log message
1242 and treats the condition as false.
1243
096fee00
PH
1244PH/16 In autoreply, treat an empty string for "once" the same as unset.
1245
024bd3c2
PH
1246PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1247 extension "envelope-auth". The code is finished and in agreement with
1248 other implementations, but there is no documentation so far and in fact,
1249 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1250 not changing the active code.
1251
1252 Print executed "if" and "elsif" statements when debugging is used. This
1253 helps a great deal to understand what a filter does.
1254
1255 Document more things not specified clearly in RFC3028. I had all this
1256 sorted out, when out of a sudden new issues came to my mind. Oops."
1257
df199fec
PH
1258PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1259 (Bugzilla #53).
1260
d27f1df3
PH
1261PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1262 canonical form (as documented). However, after a host name lookup from
1263 the IP address, check_host() was doing a simple string comparison with
1264 addresses acquired from the DNS when checking that the found name did
1265 have the original IP as one of its addresses. Since any found IPv6
1266 addresses are likely to be in abbreviated form, the comparison could
1267 fail. Luckily, there already exists a function for doing the comparison
1268 by converting both addresses to binary, so now that is used instead of
1269 the text comparison.
1270
96776534
PH
1271PH/20 There was another similar case to PH/19, when a complete host name was
1272 given in a host list; looking up its IP address could give an abbreviated
1273 form, whereas the current host's name might or might not be abbreviated.
1274 The same fix has been applied.
1275
5de37277 1276
9a799bc0
PH
1277Exim version 4.54
1278-----------------
1279
1280PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1281 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1282 It now does.
1283
99a4b039
PH
1284PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1285 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1286
1287PH/03 Typo: missing ".o" in src/pcre/Makefile.
1288
4b233853
PH
1289PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1290 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1291 Also, for "Auto-Submitted", treat anything other than "no" as
1292 non-personal, in accordance with RFC 3834. (Previously it treated
1293 anything starting "auto-" as non-personal.)
1294
8857ccfd
PH
1295TF/01 The control=submission/name=... option had a problem with syntax
1296 errors if the name included a slash character. The /name= option
1297 now slurps the rest of the string, so it can include any characters
1298 but it must come last in the list of options (after /sender_retain
1299 or /domain=).
1300
433a2980
PH
1301PH/05 Some modifications to the interface to the fake nameserver for the new
1302 testing suite.
1303
3e46c1aa 1304
9a799bc0 1305
e3a311ba
TK
1306Exim version 4.53
1307-----------------
1308
1309TK/01 Added the "success_on_redirect" address verification option. See
1310 NewStuff for rationale and an example.
1311
13b685f9
PH
1312PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1313
395ff96d
PH
1314PH/02 Patch to exigrep to allow it to work on syslog lines.
1315
5b68f6e4
PH
1316PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1317 fread() to skip over the body file's header line, because in Cygwin the
1318 header line is locked and is inaccessible.
1319
1ab52c69
PH
1320PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1321 co-exist for some time) to make it clear that it is the Exim ID that is
1322 referenced, not the Message-ID: header line.
1323
b07e6aa3
PH
1324PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1325 string_format() function, because snprintf() does not exist on all
1326 operating systems.
1327
254e032f
PH
1328PH/06 The use of forbid_filter_existstest now also locks out the use of the
1329 ${stat: expansion item.
1330
3af76a81
PH
1331PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1332 protocol synchronization error", to keep the pedants happy.
1333
2548ba04
PH
1334PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1335 well as for IRIX systems, when gcc is being used. See the host.c source
1336 file for comments.
1337
b6c6011d
PH
1338PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1339
cf39cf57
PH
1340PH/10 Named domain lists were not working if used in a queue_smtp_domains
1341 setting.
1342
f1513293
PH
1343PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1344 transport and to the smtp transport in LMTP mode.
1345
727549a4
PH
1346TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1347
af46795e
PH
1348PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1349 run a filter in a subprocess. This could lead to confusion in subsequent
1350 lookups in the parent process. There should also be a search_tidyup() at
1351 the end of the subprocess.
1352
d7b47fd0
PH
1353PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1354 only if the host matched helo_try_verify_hosts, which caused the
1355 verification to occur when the EHLO/HELO command was issued. The ACL just
1356 tested the remembered result. Now, if a previous verification attempt has
1357 not happened, "verify = helo" does it there and then.
1358
ee744174
JJ
1359JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1360
b582ab87
PH
1361TK/03 Fix log output including CR from clamd.
1362
41a13e0a
PH
1363PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1364 exist provoked a memory error which could cause a segfault.
1365
f625cc5a
PH
1366PH/15 Installed PCRE 6.2
1367
1368PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1369
21f7af35
PH
1370PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1371 of the problem. Specifically, suggested +O2 rather than +O1 for the
1372 HP-UX compiler.
1373
31480e42
PH
1374PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1375
2d280592
PH
1376PH/20 If a delivery was routed to a non-standard port by means of an SRV
1377 record, the port was not correctly logged when the outgoing_port log
1378 selector was set (it logged the transort's default port).
1379
7cd1141b
PH
1380PH/21 Added support for host-specific ports to manualroute, queryprogram,
1381 fallback_hosts, and "hosts" in the smtp transport.
1382
1383PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1384 host errors such as "Connection refused".
1385
750af86e
PH
1386PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1387 authentication with radiusclient 0.4.9:
1388
1389 - Error returned from rc_read_config was caught wrongly
1390 - Username/password not passed on to radius server due to wrong length.
1391
1392 The presumption is that some radiusclient API changes for 4.51/PH/17
1393 were not taken care of correctly. The code is still untested by me (my
1394 Linux distribution still has 0.3.2 of radiusclient), but it was
1395 contributed by a Radius user.
1396
1397PH/24 When doing a callout, the value of $domain wasn't set correctly when
1398 expanding the "port" option of the smtp transport.
1399
4304270b
TK
1400TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1401 while reading a MIME header. Thanks to Tom Hughes for a patch.
1402
750af86e
PH
1403PH/24 Include config.h inside local_scan.h so that configuration settings are
1404 available.
1405
64ffc24f
PH
1406PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1407 that in an ACL for RCPT (for example), you can examine exactly what was
1408 received.
1409
5dd9625b
PH
1410PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1411 commands, but it was not correctly comparing the address with the actual
1412 client host address. Thus, it would show the EHLO address in Received:
1413 header lines when this was not necessary.
1414
5591031b
PH
1415PH/27 Added the % operator to ${eval:}.
1416
ba18e66a
PH
1417PH/28 Exim tries to create and chdir to its spool directory when it starts;
1418 it should be ignoring failures (because with -C, for example, it has lost
1419 privilege). It wasn't ignoring creation failures other than "already
1420 exists".
1421
9cec981f
PH
1422PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1423 -bV or -d is used.
1424
aa2b5c79
PH
1425PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1426 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1427 too many continuations, the temporary file was not being removed, and the
1428 return code was incorrect.
aa2b5c79 1429
48a53b7f
PH
1430PH/31 Missing "BOOL" in function definition in filtertest.c.
1431
1c59d63b
PH
1432PH/32 Applied Sieve patches from the maintainer.
1433
671012da
TK
1434TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1435
1509d3a8
PH
1436PH/33 Added "verify = not_blind".
1437
1438PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1439 Local/Makefile (with some defaults set). These are used in built scripts
1440 such as exicyclog, but they have never been used in the exim_install
1441 script (though there are many overriding facilities there). I have
1442 arranged that the exim_install script now takes note of these two
1443 settings.
1444
1445PH/35 Installed configuration files for Dragonfly.
1446
2fe1a124
PH
1447PH/36 When a locally submitted message by a trusted user did not contain a
1448 From: header, and the sender address was obtained from -f or from an SMTP
1449 MAIL command, and the trusted user did not use -F to supply a sender
1450 name, $originator_name was incorrectly used when constructing a From:
1451 header. Furthermore, $originator_name was used for submission mode
1452 messages from external hosts without From: headers in a similar way,
1453 which is clearly wrong.
1454
8800895a
PH
1455PH/37 Added control=suppress_local_fixups.
1456
ccfdb010
PH
1457PH/38 When log_selector = +received_sender was set, and the addition of the
1458 sender made the log line's construction buffer exactly full, or one byte
1459 less than full, an overflow happened when the terminating "\n" was
1460 subsequently added.
1461
1130bfb0
PH
1462PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1463 when the result of a list match is failure because a DNS lookup failed.
1464
ebcb507f
PH
1465PH/40 RM_COMMAND is now used in the building process.
1466
c35e155c
PH
1467PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1468 the "build-* directories that it finds.
1469
95d1f782
PH
1470PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1471 address in a domain literal was a prefix of an interface address.
1472
fd6de02e
PH
1473PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1474 when verifying a sender address, unless rewrite_headers is false.
1475
58de37c5
PH
1476PH/44 Wrote a long comment about why errors_to addresses are verified as
1477 recipients, not senders.
1478
261cf466
TF
1479TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1480 the ratelimit ACL was added.
1481
3ee512ff
PH
1482PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1483
e08c430f
PH
1484PH/46 Added extra information about PostgreSQL errors to the error string.
1485
bef5a11f
PH
1486PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1487 avoiding the need to install special zones in a real server. This is
1488 backwards compatible; if it can't find the fake resolver, it drops back.
1489 Thus, both old and new test suites can be run.
1490
7546de58
TF
1491TF/02 Added util/ratelimit.pl
1492
e5d5a95f
TF
1493TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1494 clock is set back in time.
1495
2e88a017
TF
1496TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1497 Candler <B.Candler@pobox.com>.
1498
a5f65aa4
TF
1499TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1500 OK for addresses that are the result of redirections.
1501
e7726cbf
PH
1502PH/48 A number of further additions for the benefit of the new test suite,
1503 including a fake gethostbyname() that interfaces to the fake DNS resolver
1504 (see PH/47 above).
1505
a7fdad5b
TF
1506TF/06 The fix for widen_domains has also been applied to qualify_single and
1507 search_parents which are the other dnslookup options that can cause
1508 header rewrites.
1509
6af56900
PH
1510PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1511 type ("H").
1512
0925ede6
PH
1513PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1514
66afa403
TF
1515TF/07 Exim produced the error message "an SRV record indicated no SMTP
1516 service" if it encountered an MX record with an empty target hostname.
1517 The message is now "an MX or SRV record indicated no SMTP service".
1518
0154e85a
TF
1519TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1520 if the DNS of the sending site is misconfigured. This is quite a
1521 common situation. This change restores the behaviour of treating a
1522 helo verification defer as a failure.
1523
16f12c76
PH
1524PH/51 If self=fail was set on a router, the bounce message did not include the
1525 actual error message.
1526
bbe902f0 1527
e5a9dba6
PH
1528Exim version 4.52
1529-----------------
1530
1531TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1532
22c3b60b
PH
1533PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1534 command itself ended in error, the underlying message about the transport
1535 filter timeout was being overwritten with the pipe command error. Now the
1536 underlying error message should be appended to the second error message.
1537
06a9b4b5
PH
1538TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1539
c1ac6996
PH
1540PH/02 Reduce the amount of output that "make" produces by default. Full output
1541 can still be requested.
1542
9c7a242c
PH
1543PH/03 The warning log line about a condition test deferring for a "warn" verb
1544 was being output only once per connection, rather than after each
1545 occurrence (because it was using the same function as for successful
1546 "warn" verbs). This seems wrong, so I have changed it.
1547
87ba3f5f
PH
1548TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1549 it should not have, which might have caused a crash in the right
1550 circumstances, but probably never did.
1551
1552PH/04 Installed a modified version of Tony Finch's patch to make submission
1553 mode fix the return path as well as the Sender: header line, and to
1554 add a /name= option so that you can make the user's friendly name appear
1555 in the header line.
1556
29aba418
TF
1557TF/03 Added the control = fakedefer ACL modifier.
1558
fe0dab11
TF
1559TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1560 Mark Lowes for thorough testing.
870f6ba8 1561
11d337a4
TK
1562TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1563
1564TK/03 Merged latest SRS patch from Miles Wilton.
1565
415c8f3b
PH
1566PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1567 with the definition in sysexits.h (which is #included earlier).
1568 Fortunately, Exim does not actually use EX_OK. The code used to try to
1569 preserve the sysexits.h value, by assumimg that macro definitions were
1570 scanned for macro replacements. I have been disabused of this notion,
1571 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1572
958541e9
PH
1573PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1574 in the smtp transport. When a block could not be written in a single
1575 write() function, the timeout was being re-applied to each part-write.
1576 This seems wrong - if the receiver was accepting one byte at a time it
1577 would take for ever. The timeout is now adjusted when this happens. It
1578 doesn't have to be particularly precise.
1579
c206415f
TK
1580TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1581 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1582
2a4be8f9
PH
1583PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1584 without a domain if the check to <postmaster@domain> fails.
1585
1cba11c5
SC
1586SC/01 Eximstats: added -xls and the ability to specify output files
1587 (patch written by Frank Heydlauf).
1588
1589SC/02 Eximstats: use FileHandles for outputing results.
1590
1591SC/03 Eximstats: allow any combination of xls, txt, and html output.
1592
1593SC/04 Eximstats: fixed display of large numbers with -nvr option
1594
1595SC/05 Eximstats: fixed merging of reports with empty tables.
1596
1597SC/06 Eximstats: added the -include_original_destination flag
1598
1599SC/07 Eximstats: removed tabs and trailing whitespace.
1600
1005d00e
TK
1601TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1602
1603TK/06 MBOX spool code: Add real "From " MBOX separator line
1604 so the .eml file is really in mbox format (even though
1605 most programs do not really care). Patch from Alex Miller.
1606
1607TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1608 The latter is generated from $received_to and is only set if the
1609 message has one envelope recipient. SA can use these headers,
1610 obviously out-of-the-box. Patch from Alex Miller.
1611
9b4768fa
PH
1612PH/08 The ${def test on a variable was returning false if the variable's
1613 value was "0", contrary to what the specification has always said!
1614 The result should be true unless the variable is empty.
1615
1616PH/09 The syntax error of a character other than { following "${if
1617 def:variable_name" (after optional whitespace) was not being diagnosed.
1618 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1619 accidental colon was present, for example, could give incorrect results.
1620
0d7eb84a
PH
1621PH/10 Tidied the code in a number of places where the st_size field of a stat()
1622 result is used (not including appendfile, where other changes are about
1623 to be made).
1624
1625PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1626 This involved changing a lot of size variables from int to off_t. It
1627 should work with maildirs and everything.
1628
40727bee
TK
1629TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1630 spamd dying while we are connected to it.
1631
554d2369
TF
1632TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1633 <jgh@wizmail.org>
1634
1f922db1
PH
1635PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1636 function for BDB 4.3.
1637
ef213c3b
PH
1638PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1639
8ac170f3
PH
1640PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1641 the sources for PCRE have been re-arranged and more files are now
1642 involved.
1643
b1c749bb
PH
1644PH/15 The code I had for printing potentially long long variables in PH/11
1645 above was not the best (it lost precision). The length of off_t variables
1646 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1647 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1648 to be "long long int" or "long int". This is needed for the internal
1649 formatting function string_vformat().
b1c749bb 1650
4aac9b49
PH
1651PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1652 the configuration file to be ":syslog", then the script "guesses" where
1653 the logs files are, rather than using the compiled in default. In our
1654 case the guess is not the same as the compiled default, so the script
1655 suddenly stopped working when I started to use syslog. The patch checks
1656 to see if log_file_path is "". If so, it attempts to read it from exim
1657 with no configuration file to get the compiled in version, before it
1658 falls back to the previous guessing code."
1659
294520c8
TK
1660TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1661 implementing BATV in an Exim configuration. See NewStuff for the gory
1662 details.
1663
5bd022fe
PH
1664PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1665 Makefile that are specific to HP-UX.
1666
90e9ce59
PH
1667PH/18 If the "use_postmaster" option was set for a recipient callout together
1668 with the "random" option, the postmaster address was used as the MAIL
1669 FROM address for the random test, but not for the subsequent recipient
1670 test. It is now used for both.
1671
5ea81592
PH
1672PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1673 patch removes a few documentation additions to RFC 3028, because the
1674 latest draft now contains them. It adds the new en;ascii-case comparator
1675 and a new error check for 8bit text in MIME parts. Comparator and
1676 require names are now matched exactly. I enabled the subaddress
1677 extension, but it is not well tested yet (read: it works for me)."
1678
c6c2dc1d
PH
1679PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1680 rework some of the code of TK/09 above to avoid the hardwired use of
1681 "%lld" and "long long". Replaced the call to snprintf() with a call to
1682 string_vformat().
1683
fffffe4c
PH
1684PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1685 records point to non-existent hosts", "retry timeout exceeded", and
1686 "retry time not reached for any host after a long failure period".
ca02eafb 1687
9a26b6b2
PH
1688PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1689 experimental DomainKeys support:
1690
1691 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1692 (2) On an error such as an illegally used "control", the wrong name for
1693 the control was given.
1694
1695 These problems did NOT occur unless DomainKeys support was compiled.
1696
4aee0225
PH
1697PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1698
32d668a5
PH
1699PH/24 Added ${if match_ip condition.
1700
8187c3f3
PH
1701PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1702 databases so that it will be absolutely obvious if a crash occurs in the
1703 DB library. This is a regular occurrence (often caused by mis-matched
1704 db.h files).
1705
ff790e47 1706PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1707 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1708 picked up on a user's system that detects such things. There doesn't seem
1709 to be a gcc warning option for this - only an attribute that has to be
1710 put on the function's prototype. It seems that in Fedora Core 4 they have
1711 set this on a number of new functions. No doubt there will be more in due
1712 course.
ff790e47 1713
5417f6d1
PH
1714PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1715 specify a transport. However, if an address that was verified by such a
1716 router was the subject of a callout, Exim crashed because it tried to
1717 read the rcpt_include_affixes from the non-existent transport. Now it
1718 just assumes that the setting of that option is false. This bug was
1719 introduced by 4.51/PH/31.
1720
59cf8544
PH
1721PH/28 Changed -d+all to exclude +memory, because that information is very
1722 rarely of interest, but it makes the output a lot bigger. People tend to
1723 do -d+all out of habit.
1724
e7ad8a65
PH
1725PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1726 code in os-type was giving problems when libc.so lives in lib64, like on
1727 x86_64 Fedora Core.
1728
ade42478
PH
1729PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1730 aren't the modern standard, and it seems that some systems' include files
1731 don't always have them. Exim was already checking for some of the newer
1732 ones like T_AAAA, and defining it itself. I've added checks for all the
1733 record types that Exim uses.
1734
182ad5cf
PH
1735PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1736 not automatically generating a new one, as it is supposed to. This
1737 prevented TLS from working. If the file did exist, but contained invalid
1738 data, a new version was generated, as expected. It was only the case of a
1739 non-existent file that was broken.
1740
b0d9fc80
TK
1741TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1742 with a change in libdomainkeys > 0.64.
1743
1744TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1745 from DNS. If the selector record carries the flag, it now has
1746 precedence over the domain-wide flag.
1747
1748TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1749
47c7a64a
PH
1750PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1751 the use of a port name that isn't defined in /etc/services) occurred, the
1752 message was deferred as in a normal delivery, and thus remained on the
1753 spool, instead of being failed because of the mua_wrapper setting. This
1754 is now fixed, and I tidied up some of the mua_wrapper messages at the
1755 same time.
1756
a388bce4
SC
1757SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1758 the messages in a hash of arrays rather than using individual hashes.
1759 This is a bit cleaner and results in dramatic memory savings, albeit
1760 at a slight CPU cost.
1761
1762SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1763 as requested by Marc Sherman.
1764
1765SC/10 Eximstats: added histograms for user specified patterns as requested
1766 by Marc Sherman.
1767
0793e4ed
SC
1768SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1769
c58b88df
PH
1770PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1771 fopen() in the content-scanning modules that did not already have it.
1772
e7ad8a65 1773
7982096b
PH
1774Exim version 4.51
1775-----------------
1776
1a46a8c5
PH
1777TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1778 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1779
2f079f46 1780TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1781
1782TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1783
1784PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1785 to test Sieve filters that use "vacation".
1786
1787PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1788 that changes the way the GnuTLS parameters are stored in the cache file.
1789 The new format can be generated externally. For backward compatibility,
1790 if the data in the cache doesn't make sense, Exim assumes it has read an
1791 old-format file, and it generates new data and writes a new file. This
1792 means that you can't go back to an older release without removing the
1793 file.
1794
1795PH/03 A redirect router that has both "unseen" and "one_time" set does not
1796 work if there are any delivery delays because "one_time" forces the
1797 parent to be marked "delivered", so its unseen clone is never tried
1798 again. For this reason, Exim now forbids the simultaneous setting of
1799 these two options.
1800
1801PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1802 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1803 entry if you want to know the details. The fix, however, neglected to
1804 consider the case when local delivery batching is involved. The test for
1805 "previously delivered" was not happening when checking to see if an
1806 address could be batched with a previous (undelivered) one; under
1807 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1808 address.
1a46a8c5
PH
1809
1810PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1811 in its include files, and this causes problems building Exim.
1812
1813PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1814 header_syntax) but Exim was just ignoring anything given after a slash.
1815 In particular, this caused confusion with an attempt to use "verify =
1816 reverse_host_lookup/defer_ok". An error is now given when options are
1817 supplied for verify items that do not have them. (Maybe reverse_host_
1818 lookup should have a defer_ok option, but that's a different point.)
1819
1820PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1821 defined by RFC 821) to 2048, because there were problems with some AUTH
1822 commands, and RFC 1869 says the size should be increased for extended
1823 SMTP commands that take arguments.
1824
1825PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1826 Finch).
1827
1828PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1829 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1830
49c2d5ea
PH
1831PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1832 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1833 whatever). Otherwise the password may appear in the log. Following change
1834 PH/42 below, there is no longer a chance of it appearing in a bounce
1835 message.
49c2d5ea 1836
bf759a8b
PH
1837PH/11 Installed exipick version 20050225.0 from John Jetmore.
1838
83364d30
PH
1839PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1840 of its addresses was ever tried. (Bugzilla bug #2.)
1841
7999bbd7
PH
1842PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1843 the result incorrectly in the debug output. (It correctly added a newline
1844 to what was transported.)
1845
7dbf77c9
PH
1846TF/01 Added $received_time.
1847
74e0617f
PH
1848PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1849 commented out examples of how to interface to a virus scanner and to
1850 SpamAssassin. Also added commented examples of av_scanner and
1851 spamd_address settings.
1852
2f079f46
PH
1853PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1854 and controls are allowed in which ACLs. There were a couple of minor
1855 errors. Some of the entries in the conditions table (which is a table of
1856 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1857 negation of where the condition IS allowed.
1858
8c841523
PH
1859PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
1860
7766a4f0
PH
1861PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
1862 header file does not have a version number, so I've had to invent a new
1863 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
1864 API. The code is untested by me (my Linux distribution still has 0.3.2 of
1865 radiusclient), but it was contributed by a Radius user.
1866
8b417f2c
PH
1867PH/18 Installed Lars Mainka's patch for the support of CRL collections in
1868 files or directories, for OpenSSL.
1869
901f42cb
PH
1870PH/19 When an Exim process that is running as root has to create an Exim log
1871 file, it does so in a subprocess that runs as exim:exim so as to get the
1872 ownership right at creation (otherwise, other Exim processes might see
1873 the file with the wrong ownership). There was no test for failure of this
1874 fork() call, which would lead to the process getting stuck as it waited
1875 for a non-existent subprocess. Forks do occasionally fail when resources
1876 run out. I reviewed all the other calls to fork(); they all seem to check
1877 for failure.
1878
f9b9210e
PH
1879PH/20 When checking for unexpected SMTP input at connect time (before writing
1880 the banner), Exim was not dealing correctly with a non-positive return
1881 from the read() function. If the client had disconnected by this time,
1882 the result was a log entry for a synchronization error with an empty
1883 string after "input=" when read() returned zero. If read() returned -1
1884 (an event I could not check), uninitialized data bytes were printed.
1885 There were reports of junk text (parts of files, etc) appearing after
1886 "input=".
1887
54cdb463
PH
1888PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
1889
cf00dad6
PH
1890PH/22 Added support for macro redefinition, and (re)definition in between
1891 driver and ACL definitions.
1892
acb1b346
PH
1893PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
1894 forgetting to use the resulting value; it was using the unexpanded value.
1895
c5ddb310
PH
1896PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
1897 hadn't been configured. The fix is from Juergen Kreileder, who
1898 understands it better than I do:
1899
1900 "Here's what I see happening with three configured cyrus_sasl
1901 authenticators configured (plain, login, cram-md5):
1902
1903 On startup auth_cyrus_sasl_init() gets called for each of these.
1904 This means three calls to sasl_listmech() without a specified mech_list.
1905 => SASL tests which mechs of all available mechs actually work
1906 => three warnings about OTP not working
1907 => the returned list contains: plain, login, cram-md5, digest-md5, ...
1908
1909 With the patch, sasl_listmech() also gets called three times. But now
1910 SASL's mech_list option is set to the server_mech specified in the the
1911 authenticator. Or in other words, the answer from sasl_listmech()
1912 gets limited to just the mech you're testing for (which is different
1913 for each call.)
1914 => the return list contains just 'plain' or 'login', 'cram-md5' or
1915 nothing depending on the value of ob->server_mech.
1916
1917 I've just tested the patch: Authentication still works fine,
1918 unavailable mechs specified in the exim configuration are still
1919 caught, and the auth.log warnings about OTP are gone."
1920
31619da6
PH
1921PH/25 When debugging is enabled, the contents of the command line are added
1922 to the debugging output, even when log_selector=+arguments is not
1923 specified.
1924
bebaf0fc
PH
1925PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
1926 answer is "GNU", and only if the return is "GNU/something" is the answer
1927 "Linux".
1928
475fe28a
PH
1929PH/27 $acl_verify_message is now set immediately after the failure of a
1930 verification in an ACL, and so is available in subsequent modifiers. In
1931 particular, the message can be preserved by coding like this:
1932
1933 warn !verify = sender
1934 set acl_m0 = $acl_verify_message
1935
1936 Previously, $acl_verify_message was set only while expanding "message"
1937 and "log_message" when a very denied access.
1938
7e8bec7a
PH
1939PH/28 Modified OS/os.c-Linux with
1940
1941 -#ifndef OS_LOAD_AVERAGE
1942 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
1943
1944 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
1945 nomenclature these days.)
1946
e4a89c47
PH
1947PH/29 Installed patch from the Sieve maintainer that adds the options
1948 sieve_useraddress and sieve_subaddress to the redirect router.
1949
5ca2a9a1
PH
1950PH/30 In these circumstances:
1951 . Two addresses routed to the same list of hosts;
1952 . First host does not offer TLS;
1953 . First host accepts first address;
1954 . First host gives temporary error to second address;
1955 . Second host offers TLS and a TLS session is established;
1956 . Second host accepts second address.
1957 Exim incorrectly logged both deliveries with the TLS parameters (cipher
1958 and peerdn, if requested) that were in fact used only for the second
1959 address.
7e8bec7a 1960
c688b954
PH
1961PH/31 When doing a callout as part of verifying an address, Exim was not paying
1962 attention to any local part prefix or suffix that was matched by the
1963 router that accepted the address. It now behaves in the same way as it
1964 does for delivery: the affixes are removed from the local part unless
1965 rcpt_include_affixes is set on the transport.
1966
fed77020
PH
1967PH/32 Add the sender address, as F=<...>, to the log line when logging a
1968 timeout during the DATA phase of an incoming message.
1969
7fe1560f
PH
1970PH/33 Sieve envelope tests were broken for match types other than :is. I have
1971 applied a patch sanctioned by the Sieve maintainer.
c688b954 1972
ebb6e6d5
PH
1973PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
1974 the uid or gid is negative. A case of a negative gid caused this to be
1975 noticed. The fix allows for either to be negative.
1976
9c4e8f60
PH
1977PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
1978 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
1979 overlooked.
1980
1981PH/36 The change PH/12 above was broken. Fixed it.
1982
d7174846
PH
1983PH/37 Exim used to check for duplicate addresses in the middle of routing, on
1984 the grounds that routing the same address twice would always produce the
1985 same answer. This might have been true once, but it is certainly no
1986 longer true now. Routing a child address may depend on the previous
1987 routing that produced that child. Some complicated redirection strategies
1988 went wrong when messages had multiple recipients, and made Exim's
1989 behaviour dependent on the order in which the addresses were given.
1990
1991 I have moved the duplicate checking until after the routing is complete.
1992 Exim scans the addresses that are assigned to local and remote
1993 transports, and removes any duplicates. This means that more work will be
1994 done, as duplicates will always all be routed, but duplicates are
1995 presumably rare, so I don't expect this is of any significance.
1996
1997 For deliveries to pipes, files, and autoreplies, the duplicate checking
1998 still happens during the routing process, since they are not going to be
1999 routed further.
2000
cfe75fc3
PH
2001PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2002 It corrects a timeout issue with spamd. This is Ian's comment: "The
2003 background is that sometimes spamd either never reads data from a
2004 connection it has accepted, or it never writes response data. The exiscan
2005 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2006 blindly assumes that writes won't block so it may never time out."
2007
be22d70e
PH
2008PH/39 Allow G after quota size as well as K and M.
2009
0612b098
PH
2010PH/40 The value set for $authenticated_id in an authenticator may not contain
2011 binary zeroes or newlines because the value is written to log lines and
2012 to spool files. There was no check on this. Now the value is run through
2013 the string_printing() function so that such characters are converted to
2014 printable escape sequences.
2015
2e0c1448
PH
2016PH/41 $message_linecount is a new variable that contains the total number of
2017 lines in the message. Compare $body_linecount, which is the count for the
2018 body only.
2019
447d236c
PH
2020PH/42 Exim no longer gives details of delivery errors for specific addresses in
2021 bounce and delay warning messages, except in certain special cases, which
2022 are as follows:
2023
2024 (a) An SMTP error message from a remote host;
2025 (b) A message specified in a :fail: redirection;
2026 (c) A message specified in a "fail" command in a system filter;
2027 (d) A message specified in a FAIL return from the queryprogram router;
2028 (e) A message specified by the cannot_route_message router option.
2029
2030 In these cases only, Exim does include the error details in bounce and
2031 warning messages. There are also a few cases where bland messages such
2032 as "unrouteable address" or "local delivery error" are given.
2033
d20976dc
PH
2034PH/43 $value is now also set for the "else" part of a ${run expansion.
2035
f656d135
PH
2036PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2037 being worked on, but at least Exim now implements the latest version to
2038 play with."
2039
2e2a30b4
PH
2040PH/45 In a pipe transport, although a timeout while waiting for the pipe
2041 process to complete was treated as a delivery failure, a timeout while
2042 writing the message to the pipe was logged, but erroneously treated as a
2043 successful delivery. Such timeouts include transport filter timeouts. For
2044 consistency with the overall process timeout, these timeouts are now
2045 treated as errors, giving rise to delivery failures by default. However,
2046 there is now a new Boolean option for the pipe transport called
2047 timeout_defer, which, if set TRUE, converts the failures into defers for
2048 both kinds of timeout. A transport filter timeout is now identified in
2049 the log output.
2050
9176e9f0
PH
2051PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2052 systems where "make" and "gmake" are different, calling "gmake" at top
2053 level broke things. I've arranged for the value of $(MAKE) to be passed
2054 from the Makefile to this script so that it can call the same version of
2055 "make".
2056
7982096b 2057
bbe902f0
PH
2058A note about Exim versions 4.44 and 4.50
2059----------------------------------------
2060
2061Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2062changes of various kinds. As a consequence, a big documentation update was
2063needed. This delayed the release for rather longer than seemed good, especially
2064in the light of a couple of (minor) security issues. Therefore, the changes
2065that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2066release. So 4.44 and 4.50 are in effect two different branches that both start
2067from 4.43.
2068
2069I have left the 4.50 change log unchanged; it contains all the changes since
20704.43. The change log for 4.44 is below; many of its items are identical to
2071those for 4.50. This seems to be the most sensible way to preserve the
2072historical information.
2073
2074
f7b63901 2075Exim version 4.50
495ae4b0
PH
2076-----------------
2077
5fe762f6
PH
2078 1. Minor wording change to the doc/README.SIEVE file.
2079
139059f6 2080 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2081 computation of the current number of files was incorrect.
495ae4b0 2082
7086e875
PH
2083 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2084 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2085 place.
2086
35af9f61
PH
2087 4. Give more explanation in the error message when the command for a transport
2088 filter fails to execute.
2089
b668c215
PH
2090 5. There are several places where Exim runs a non-Exim command in a
2091 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2092 was being done only for the command run by the queryprogram router. It is
2093 now done for all such subprocesses. The other cases are: ${run, transport
2094 filters, and the commands run by the lmtp and pipe transports.
2095
a494b1e1
PH
2096 6. Added CONFIGURE_GROUP build-time option.
2097
2098 7. Some older OS have a limit of 256 on the maximum number of file
2099 descriptors. Exim was using setrlimit() to set 1000 as a large value
2100 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2101 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2102
c5fcb476
PH
2103 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2104 was an oversight, and furthermore, ever since the addition of extra
2105 controls (e.g. 4.43/32), the checks on when to allow different forms of
2106 "control" were broken. There should now be diagnostics for all cases when a
2107 control that does not make sense is encountered.
2108
69358f02
PH
2109 9. Added the /retain_sender option to "control=submission".
2110
5be20824
PH
211110. $recipients is now available in the predata ACL (oversight).
2112
eb2c0248
PH
211311. Tidy the search cache before the fork to do a delivery from a message
2114 received from the command line. Otherwise the child will trigger a lookup
2115 failure and thereby defer the delivery if it tries to use (for example) a
2116 cached ldap connection that the parent has called unbind on.
2117
2a3eea10
PH
211812. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2119 of $address_data from the recipient verification was clobbered by the
2120 sender verification.
2121
212213. The value of address_data from a sender verification is now available in
2123 $sender_address_data in subsequent conditions in the ACL statement.
2124
23c7ff99
PH
212514. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2126
4deaf07d
PH
212715. Added a new option "connect=<time>" to callout options, to set a different
2128 connection timeout.
2129
926e1192
PH
213016. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2131 was its contents. (It was OK if the option was not defined at all.)
2132
650edc6f
PH
213317. A "Completed" log line is now written for messages that are removed from
2134 the spool by the -Mrm option.
2135
2c7db3f5
PH
213618. New variables $sender_verify_failure and $recipient_verify_failure contain
2137 information about exactly what failed.
2138
3d235903
PH
213919. Added -dd to debug only the daemon process.
2140
7c7ad977
PH
214120. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2142 handles timeouts, both on the server side and network timeouts. Renamed the
2143 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2144
981756db
PH
214521. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2146 It is now set to "smtps".
2147
d4eb88df
PH
214822. $host_address is now set to the target address during the checking of
2149 ignore_target_hosts.
2150
215123. When checking ignore_target_hosts for an ipliteral router, no host name was
2152 being passed; this would have caused $sender_host_name to have been used if
2153 matching the list had actually called for a host name (not very likely,
2154 since this list is usually IP addresses). A host name is now passed as
2155 "[x.x.x.x]".
2156
7d468ab8
PH
215724. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2158 code that specifies a non-restarting handler (typically sigaction() in
2159 modern systems) in an attempt to fix a rare and obscure crash bug.
2160
216125. Narrowed the window for a race in the daemon that could cause it to ignore
2162 SIGCHLD signals. This is not a major problem, because they are used only to
2163 wake it up if nothing else does.
2164
62c0818f
PH
216526. A malformed maildirsize file could cause Exim to calculate negative values
2166 for the mailbox size or file count. Odd effects could occur as a result.
2167 The maildirsize information is now recalculated if the size or filecount
2168 end up negative.
2169
26034054
PH
217027. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2171 support for a long time. Removed HAVE_SYS_VFS_H.
2172
af66f652
PH
217328. Installed the latest version of exipick from John Jetmore.
2174
90af77f4
PH
217529. In an address list, if the pattern was not a regular expression, an empty
2176 subject address (from a bounce message) matched only if the pattern was an
2177 empty string. Non-empty patterns were not even tested. This was the wrong
2178 because it is perfectly reasonable to use an empty address as part of a
2179 database query. An empty address is now tested by patterns that are
2180 lookups. However, all the other forms of pattern expect the subject to
2181 contain a local part and a domain, and therefore, for them, an empty
2182 address still always fails if the pattern is not itself empty.
2183
d8ef3577
PH
218430. Exim went into a mad DNS loop when attempting to do a callout where the
2185 host was specified on an smtp transport, and looking it up yielded more
2186 than one IP address.
2187
5cb8cbc6
PH
218831. Re-factored the code for checking spool and log partition space into a
2189 function that finds that data and another that does the check. The former
2190 is then used to implement four new variables: $spool_space, $log_space,
2191 $spool_inodes, and $log_inodes.
2192
14702f5b
PH
219332. The RFC2047 encoding function was originally intended for short strings
2194 such as real names; it was not keeping to the 75-character limit for
2195 encoded words that the RFC imposes. It now respects the limit, and
2196 generates multiple encoded words if necessary. To be on the safe side, I
2197 have increased the buffer size for the ${rfc2047: expansion operator from
2198 1024 to 2048 bytes.
2199
063b1e99
PH
220033. It is now permitted to omit both strings after an "if" condition; if the
2201 condition is true, the result is "true". As before, when the second string
2202 is omitted, a false condition yields an empty string. This makes it less
2203 cumbersome to write custom ACL and router conditions.
2204
652e1b65
PH
220534. Failure to deliver a bounce message always caused it to be frozen, even if
2206 there was an errors_to setting on the router. The errors_to setting is now
2207 respected.
2208
6f0c9a4f
PH
220935. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2210 canonical form (fully expanded) before being placed in
2211 $sender_host_address.
2212
33397d19
PH
221336. The table in the code that translates DNS record types into text (T_A to
2214 "A" for instance) was missing entries for NS and CNAME. It is just possible
2215 that this could have caused confusion if both these types were looked up
2216 for the same domain, because the text type is used as part of Exim's
2217 per-process caching. But the chance of anyone hitting this buglet seems
2218 very small.
2219
7bb56e1f
PH
222037. The dnsdb lookup has been extended in a number of ways.
2221
2222 (1) There is a new type, "zns", which walks up the domain tree until it
2223 finds some nameserver records. It should be used with care.
2224
ea3bc19b
PH
2225 (2) There is a new type, "mxh", which is like "mx" except that it returns
2226 just the host names, not the priorities.
2227
2228 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2229 looked up. The behaviour when one of the lookups defers can be
2230 controlled by a keyword.
7bb56e1f 2231
ea3bc19b 2232 (4) It is now possible to specify the separator character for use when
7bb56e1f 2233 multiple records are returned.
33397d19 2234
0bcb2a0e
PH
223538. The dnslists ACL condition has been extended: it is now possible to supply
2236 a list of IP addresses and/or domains to be looked up in a particular DNS
2237 domain.
2238
2ac0e484
PH
223939. Added log_selector=+queue_time_overall.
2240
4e1fde53
PH
224140. When running the queue in the test harness, wait just a tad after forking a
2242 delivery process, to get repeatability of debugging output.
2243
de365ded
PH
224441. Include certificate and key file names in error message when GnuTLS fails
2245 to set them up, because the GnuTLS error message doesn't include the name
2246 of the failing file when there is a problem reading it.
2247
f05da2e8
PH
224842. Allow both -bf and -bF in the same test run.
2249
d6453af2
PH
225043. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2251
f7b63901
PH
225244. The "Exiscan patch" is now merged into the mainline Exim source.
2253
225445. Sometimes the final signoff response after QUIT could fail to get
2255 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2256 < 0 before doing a fflush(). This bug looks as though it goes back to the
2257 introduction of TLS in release 3.20, but "sometimes" must have been rare
2258 because the tests only now provoked it.
2259
a444213a
PH
226046. Reset the locale to "C" after calling embedded Perl, in case it was changed
2261 (this can affect the format of dates).
2262
0ec020ea
PH
226347. exim_tidydb, when checking for the continued existence of a message for
2264 which it has found a message-specific retry record, was not finding
2265 messages that were in split spool directories. Consequently, it was
2266 deleting retry records that should have stayed in existence.
2267
b1206957
PH
226848. Steve fixed some bugs in eximstats.
2269
227049. The SPA authentication driver was not abandoning authentication and moving
2271 on to the next authenticator when an expansion was forced to fail,
2272 contradicting the general specification for all authenticators. Instead it
2273 was generating a temporary error. It now behaves as specified.
2274
26dd5a95
PH
227550. The default ordering of permitted cipher suites for GnuTLS was pessimal
2276 (the order specifies the preference for clients). The order is now AES256,
2277 AES128, 3DES, ARCFOUR128.
2278
343b2385
PH
227951. Small patch to Sieve code - explicitly set From: when generating an
2280 autoreply.
2281
1c5466b9
PH
228252. Exim crashed if a remote delivery caused a very long error message to be
2283 recorded - for instance if somebody sent an entire SpamAssassin report back
2284 as a large number of 550 error lines. This bug was coincidentally fixed by
2285 increasing the size of one of Exim's internal buffers (big_buffer) that
2286 happened as part of the Exiscan merge. However, to be on the safe side, I
2287 have made the code more robust (and fixed the comments that describe what
2288 is going on).
2289
55ee9ee3
PH
229053. Now that there can be additional text after "Completed" in log lines (if
2291 the queue_time_overall log selector is set), a one-byte patch to exigrep
2292 was needed to allow it to recognize "Completed" as not the last thing in
2293 the line.
2294
d38f8232
PH
229554. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2296 patch that reportedly fixes this has been added. I am not expert enough to
2297 create a test for it. This is what the patch creator wrote:
2298
2299 "I found a little strange behaviour of ldap code when working with
2300 Windows 2003 AD Domain, where users was placed in more than one
2301 Organization Units. When I tried to give exim partial DN, the exit code
2302 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2303 But simultaneously result of request was absolutely normal ldap result,
2304 so I produce this patch..."
2305
3295e65b
PH
2306 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2307 REFERENCE, so I have modified the code to exclude the patch when that macro
2308 is not defined.
2309
7102e136
PH
231055. Some experimental protocols are using DNS PTR records for new purposes. The
2311 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2312 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2313 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2314 CAN-2005-0021
7102e136 2315
3ca0ba97
PH
231656. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2317
c2bcbe20
PH
231857. Double the size of the debug message buffer (to 2048) so that more of very
2319 long debug lines gets shown.
2320
18ce445d
PH
232158. The exicyclog utility now does better if the number of log files to keep
2322 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2323
1f5b4c3d
PH
232459. Two changes related to the smtp_active_hostname option:
2325
2326 (1) $smtp_active_hostname is now available as a variable.
2327 (2) The default for smtp_banner uses $smtp_active_hostname instead
2328 of $primary_hostname.
2329
b975ba52
PH
233060. The host_aton() function is supposed to be passed a string that is known
2331 to be a valid IP address. However, in the case of IPv6 addresses, it was
2332 not checking this. This is a hostage to fortune. Exim now panics and dies
2333 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2334 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2335 components; fortuitously, this particular loophole had already been fixed
2336 by change 4.50/55 above.
2337
2338 If there are any other similar loopholes, the new check in host_aton()
2339 itself should stop them being exploited. The report I received stated that
2340 data on the command line could provoke the exploit when Exim was running as
2341 exim, but did not say which command line option was involved. All I could
2342 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2343 running as the user.
ea3a6f44 2344 CAN-2005-0021
85b87bc2
PH
2345
234661. There was a buffer overflow vulnerability in the SPA authentication code
2347 (which came originally from the Samba project). I have added a test to the
2348 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2349 CAN-2005-0022
b975ba52 2350
17ffcae7
PH
235162. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2352 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2353
d95f9fdb
PH
235463. The daemon start-up calls getloadavg() while still root for those OS that
2355 need the first call to be done as root, but it missed one case: when
2356 deliver_queue_load_max is set with deliver_drop_privilege. This is
2357 necessary for the benefit of the queue runner, because there is no re-exec
2358 when deliver_drop_privilege is set.
2359
86b8287f
PH
236064. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2361 This has been fixed.
2362
60dc5e56
PH
236365. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2364 was in use, was not putting the data itself into the right store pool;
2365 consequently, it could be overwritten for a subsequent message in the same
2366 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2367 the caching.)
2368
533244af
PH
236966. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2370
a5a28604
PH
237167. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2372 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2373 the function were treating the return as a boolean value, which happened to
2374 work because 0=false and not-0=true, but is not correct code.
2375
7e634d24
PH
237668. The host_aton() function was not handling scoped IPv6 addresses (those
2377 with, for example, "%eth0" on the end) correctly.
2378
3e11c26b
PH
237969. Fixed some compiler warnings in acl.c for the bitmaps specified with
2380 negated items (that is, ~something) in unsigned ints. Some compilers
2381 apparently mutter when there is no cast.
2382
6729cf78
PH
238370. If an address verification called from an ACL failed, and did not produce a
2384 user-specific message (i.e. there was only a "system" message), nothing was
2385 put in $acl_verify_message. In this situation, it now puts the system
2386 message there.
2387
00f00ca5
PH
238871. Change 4.23/11 added synchronization checking at the start of an SMTP
2389 session; change 4.31/43 added the unwanted input to the log line - except
2390 that it did not do this in the start of session case. It now does.
2391
c9bdd01c
PH
239272. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2393 This is wrong and can cause the other end to generate a synchronization
2394 error if it is another Exim or anything else that does the synchronization
2395 check. A QUIT command is no longer sent after a timeout.
2396
d43194df
PH
239773. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2398 during host lookups.
2399
fe5b5d0b
PH
240074. The defer_ok option of callout verification was not working if it was used
2401 when verifying addresses in header lines, that is, for this case:
2402
2403 verify = header_sender/callout=defer_ok
2404
76a2d7ba
PH
240575. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2406 those file descriptors could be used for SMTP connections. If anything
2407 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2408 could be sent to the SMTP client, causing chaos. The daemon now opens
2409 stdin, stdout, and stderr to /dev/null when it puts itself into the
2410 background.
2411
241276. Arrange for output from Perl's "warn" command to be written to Exim's main
2413 log by default. The user can override this with suitable Perl magic.
2414
04f7d5b9
PH
241577. The use of log_message on a "discard" ACL verb, which is supposed to add to
2416 the log message when discard triggers, was not working for the DATA ACL or
2417 for the non-SMTP ACL.
2418
bc60667e
PH
241978. Error message wording change in sieve.c.
2420
bb6e88ff
PH
242179. If smtp_accept_max_per_host was set, the number of connections could be
2422 restricted to fewer than expected, because the daemon was trying to set up
2423 a new connection before checking whether the processes handling previous
2424 connections had finished. The check for completed processes is now done
2425 earlier. On busy systems, this bug wouldn't be noticed because something
2426 else would have woken the daemon, and it would have reaped the completed
2427 process earlier.
2428
1e70f85b
PH
242980. If a message was submitted locally by a user whose login name contained one
2430 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2431 It caused a spool format error. I have fixed the spool reading code. A
2432 related problem was that the "from" clause in the Received: line became
2433 illegal because of the space(s). It is now covered by ${quote_local_part.
2434
243581. Included the latest eximstats from Steve (adds average sizes to HTML Top
2436 tables).
2437
4e01f9d6
PH
243882. Updated OS/Makefile-AIX as per message from Mike Meredith.
2439
1ee1cef2
PH
244083. Patch from Sieve maintainer to fix unterminated string problem in
2441 "vacation" handling.
2442
6e2b4ccc
PH
244384. Some minor changes to the Linux configuration files to help with other
2444 OS variants using glibc.
2445
8e669ac1
PH
244685. One more patch for Sieve to update vacation handling to latest spec.
2447
495ae4b0 2448
bbe902f0
PH
2449----------------------------------------------------
2450See the note above about the 4.44 and 4.50 releases.
2451----------------------------------------------------
2452
2453
2454Exim version 4.44
2455-----------------
2456
2457 1. Change 4.43/35 introduced a bug that caused file counts to be
2458 incorrectly computed when quota_filecount was set in an appendfile
2459 transport
2460
2461 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2462 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2463 place.
2464
2465 3. Give more explanation in the error message when the command for a transport
2466 filter fails to execute.
2467
2468 4. There are several places where Exim runs a non-Exim command in a
2469 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2470 was being done only for the command run by the queryprogram router. It is
2471 now done for all such subprocesses. The other cases are: ${run, transport
2472 filters, and the commands run by the lmtp and pipe transports.
2473
2474 5. Some older OS have a limit of 256 on the maximum number of file
2475 descriptors. Exim was using setrlimit() to set 1000 as a large value
2476 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2477 systems. I've change it so that if it can't get 1000, it tries for 256.
2478
2479 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2480 was an oversight, and furthermore, ever since the addition of extra
2481 controls (e.g. 4.43/32), the checks on when to allow different forms of
2482 "control" were broken. There should now be diagnostics for all cases when a
2483 control that does not make sense is encountered.
2484
2485 7. $recipients is now available in the predata ACL (oversight).
2486
2487 8. Tidy the search cache before the fork to do a delivery from a message
2488 received from the command line. Otherwise the child will trigger a lookup
2489 failure and thereby defer the delivery if it tries to use (for example) a
2490 cached ldap connection that the parent has called unbind on.
2491
2492 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2493 of $address_data from the recipient verification was clobbered by the
2494 sender verification.
2495
249610. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2497 was its contents. (It was OK if the option was not defined at all.)
2498
249911. A "Completed" log line is now written for messages that are removed from
2500 the spool by the -Mrm option.
2501
250212. $host_address is now set to the target address during the checking of
2503 ignore_target_hosts.
2504
250513. When checking ignore_target_hosts for an ipliteral router, no host name was
2506 being passed; this would have caused $sender_host_name to have been used if
2507 matching the list had actually called for a host name (not very likely,
2508 since this list is usually IP addresses). A host name is now passed as
2509 "[x.x.x.x]".
2510
251114. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2512 code that specifies a non-restarting handler (typically sigaction() in
2513 modern systems) in an attempt to fix a rare and obscure crash bug.
2514
251515. Narrowed the window for a race in the daemon that could cause it to ignore
2516 SIGCHLD signals. This is not a major problem, because they are used only to
2517 wake it up if nothing else does.
2518
251916. A malformed maildirsize file could cause Exim to calculate negative values
2520 for the mailbox size or file count. Odd effects could occur as a result.
2521 The maildirsize information is now recalculated if the size or filecount
2522 end up negative.
2523
252417. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2525 support for a long time. Removed HAVE_SYS_VFS_H.
2526
ea3a6f44 252718. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2528
252919. Allow an empty sender to be matched against a lookup in an address list.
2530 Previously the only cases considered were a regular expression, or an
2531 empty pattern.
2532
253320. Exim went into a mad DNS lookup loop when doing a callout where the
2534 host was specified on the transport, if the DNS lookup yielded more than
2535 one IP address.
2536
ea3a6f44
NM
253721. The RFC2047 encoding function was originally intended for short strings
2538 such as real names; it was not keeping to the 75-character limit for
2539 encoded words that the RFC imposes. It now respects the limit, and
2540 generates multiple encoded words if necessary. To be on the safe side, I
2541 have increased the buffer size for the ${rfc2047: expansion operator from
2542 1024 to 2048 bytes.
bbe902f0 2543
ea3a6f44
NM
254422. Failure to deliver a bounce message always caused it to be frozen, even if
2545 there was an errors_to setting on the router. The errors_to setting is now
2546 respected.
bbe902f0
PH
2547
254823. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2549 canonical form (fully expanded) before being placed in
2550 $sender_host_address.
2551
255224. Updated eximstats to version 1.33
2553
ea3a6f44
NM
255425. Include certificate and key file names in error message when GnuTLS fails
2555 to set them up, because the GnuTLS error message doesn't include the name
2556 of the failing file when there is a problem reading it.
bbe902f0
PH
2557
255826. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2559 As per change 25.
bbe902f0 2560
ea3a6f44
NM
256127. Reset the locale to "C" after calling embedded Perl, in case it was changed
2562 (this can affect the format of dates).
bbe902f0 2563
ea3a6f44
NM
256428. exim_tidydb, when checking for the continued existence of a message for
2565 which it has found a message-specific retry record, was not finding
2566 messages that were in split spool directories. Consequently, it was
2567 deleting retry records that should have stayed in existence.
bbe902f0
PH
2568
256929. eximstats updated to version 1.35
2570 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2571 1.35 - bugfix such that pie charts by volume are generated correctly
2572
ea3a6f44
NM
257330. The SPA authentication driver was not abandoning authentication and moving
2574 on to the next authenticator when an expansion was forced to fail,
2575 contradicting the general specification for all authenticators. Instead it
2576 was generating a temporary error. It now behaves as specified.
bbe902f0 2577
ea3a6f44
NM
257831. The default ordering of permitted cipher suites for GnuTLS was pessimal
2579 (the order specifies the preference for clients). The order is now AES256,
2580 AES128, 3DES, ARCFOUR128.
bbe902f0 2581
ea3a6f44
NM
258231. Small patch to Sieve code - explicitly set From: when generating an
2583 autoreply.
bbe902f0 2584
ea3a6f44
NM
258532. Exim crashed if a remote delivery caused a very long error message to be
2586 recorded - for instance if somebody sent an entire SpamAssassin report back
2587 as a large number of 550 error lines. This bug was coincidentally fixed by
2588 increasing the size of one of Exim's internal buffers (big_buffer) that
2589 happened as part of the Exiscan merge. However, to be on the safe side, I
2590 have made the code more robust (and fixed the comments that describe what
2591 is going on).
bbe902f0 2592
ea3a6f44
NM
259333. Some experimental protocols are using DNS PTR records for new purposes. The
2594 keys for these records are domain names, not reversed IP addresses. The
2595 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2596 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2597 CAN-2005-0021
2598
ea3a6f44
NM
259934. The host_aton() function is supposed to be passed a string that is known
2600 to be a valid IP address. However, in the case of IPv6 addresses, it was
2601 not checking this. This is a hostage to fortune. Exim now panics and dies
2602 if the condition is not met. A case was found where this could be provoked
2603 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2604 components; fortuitously, this particular loophole had already been fixed
2605 by change 4.50/55 or 4.44/33 above.
2606
2607 If there are any other similar loopholes, the new check in host_aton()
2608 itself should stop them being exploited. The report I received stated that
2609 data on the command line could provoke the exploit when Exim was running as
2610 exim, but did not say which command line option was involved. All I could
2611 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2612 running as the user.
bbe902f0
PH
2613 CAN-2005-0021
2614
ea3a6f44
NM
261535. There was a buffer overflow vulnerability in the SPA authentication code
2616 (which came originally from the Samba project). I have added a test to the
2617 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2618 CAN-2005-0022
2619
ea3a6f44
NM
262036. The daemon start-up calls getloadavg() while still root for those OS that
2621 need the first call to be done as root, but it missed one case: when
2622 deliver_queue_load_max is set with deliver_drop_privilege. This is
2623 necessary for the benefit of the queue runner, because there is no re-exec
2624 when deliver_drop_privilege is set.
bbe902f0 2625
ea3a6f44
NM
262637. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2627 was in use, was not putting the data itself into the right store pool;
2628 consequently, it could be overwritten for a subsequent message in the same
2629 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2630 the caching.)
bbe902f0 2631
ea3a6f44
NM
263238. Sometimes the final signoff response after QUIT could fail to get
2633 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2634 < 0 before doing a fflush(). This bug looks as though it goes back to the
2635 introduction of TLS in release 3.20, but "sometimes" must have been rare
2636 because the tests only now provoked it.
bbe902f0
PH
2637
2638
495ae4b0
PH
2639Exim version 4.43
2640-----------------
2641
2642 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2643 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2644 Now it returns an integer. A number of calls were still expecting a T/F
2645 return. Fortuitously, in all cases, the tests worked in OK situations,
2646 which is the norm. However, things would have gone wrong on any write
2647 failures on the smtp file descriptor. This function is used when sending
2648 messages over SMTP and also when doing verify callouts.
2649
2650 2. When Exim is called to do synchronous delivery of a locally submitted
2651 message (the -odf or -odi options), it no longer closes stderr before doing
2652 the delivery.
2653
2654 3. Implemented the mua_wrapper option.
2655
2656 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2657
2658 5. Implemented the functions header_remove(), header_testname(),
2659 header_add_at_position(), and receive_remove_recipient(), and exported them
2660 to local_scan().
2661
2662 6. If an ACL "warn" statement specified the addition of headers, Exim already
2663 inserted X-ACL-Warn: at the start if there was no header name. However, it
2664 was not making this test for the second and subsequent header lines if
2665 there were newlines in the string. This meant that an invalid header could
2666 be inserted if Exim was badly configured.
2667
2668 7. Allow an ACL "warn" statement to add header lines at the start or after all
2669 the Received: headers, as well as at the end.
2670
2671 8. Added the rcpt_4xx retry error code.
2672
2673 9. Added postmaster_mailfrom=xxx to callout verification option.
2674
267510. Added mailfrom=xxxx to the callout verification option, for verify=
2676 header_sender only.
2677
267811. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2679 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2680
268112. Inserted some casts to stop certain compilers warning when using pointer
2682 differences as field lengths or precisions in printf-type calls (mostly
2683 affecting debugging statements).
2684
268513. Added optional readline() support for -be (dynamically loaded).
2686
268714. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2688 same clock tick as a message's arrival, so that its received time was the
2689 same as the "first fail" time on the retry record, and that message
2690 remained on the queue past the ultimate address timeout, every queue runner
2691 would try a delivery (because it was past the ultimate address timeout) but
2692 after another failure, the ultimate address timeout, which should have then
2693 bounced the address, did not kick in. This was a "< instead of <=" error;
2694 in most cases the first failure would have been in the next clock tick
2695 after the received time, and all would be well.
2696
269715. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2698 being recognized when the domain list was tested by the match_domain
2699 condition in an expansion string.
2700
270116. Added the ${str2b64: operator.
2702
270317. Exim was always calling setrlimit() to set a large limit for the number of
2704 processes, without checking whether the existing limit was already
2705 adequate. (It did check for the limit on file descriptors.) Furthermore,
2706 errors from getrlimit() and setrlimit() were being ignored. Now they are
2707 logged to the main and panic logs, but Exim does carry on, to try to do its
2708 job under whatever limits there are.
2709
271018. Imported PCRE 5.0.
2711
271219. Trivial typo in log message " temporarily refused connection" (the leading
2713 space).
2714
271520. If the log selector return_path_on_delivery was set and an address was
2716 redirected to /dev/null, the delivery process crashed because it assumed
2717 that a return path would always be set for a "successful" delivery. In this
2718 case, the whole delivery is bypassed as an optimization, and therefore no
2719 return path is set.
2720
272121. Internal re-arrangement: the function for sending a challenge and reading
2722 a response while authentication was assuming a zero-terminated challenge
2723 string. It's now changed to take a pointer and a length, to allow for
2724 binary data in such strings.
2725
272622. Added the cyrus_sasl authenticator (code supplied by MBM).
2727
272823. Exim was not respecting finduser_retries when seeking the login of the
2729 uid under which it was called; it was always trying 10 times. (The default
2730 setting of finduser_retries is zero.) Also, it was sleeping after the final
2731 failure, which is pointless.
2732
273324. Implemented tls_on_connect_ports.
2734
273525. Implemented acl_smtp_predata.
2736
273726. If the domain in control=submission is set empty, Exim assumes that the
2738 authenticated id is a complete email address when it generates From: or
2739 Sender: header lines.
2740
274127. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2742 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2743 chown and chgrp in /bin and hostname in /usr/bin.
2744
274528. Exim was keeping the "process log" file open after each use, just as it
2746 does for the main log. This opens the possibility of it remaining open for
2747 long periods when the USR1 signal hits a daemon. Occasional processlog
2748 errors were reported, that could have been caused by this. Anyway, it seems
2749 much more sensible not to leave this file open at all, so that is what now
2750 happens.
2751
275229. The long-running daemon process does not normally write to the log once it
2753 has entered its main loop, and it closes the log before doing so. This is
2754 so that log files can straightforwardly be renamed and moved. However,
2755 there are a couple of unusual error situations where the daemon does write
2756 log entries, and I had neglected to close the log afterwards.
2757
275830. The text of an SMTP error response that was received during a remote
2759 delivery was being truncated at 512 bytes. This is too short for some of
2760 the long messages that one sometimes sees. I've increased the limit to
2761 1024.
2762
276331. It is now possible to make retry rules that apply only when a message has a
2764 specific sender, in particular, an empty sender.
2765
276632. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2767 it possible to be selective about when SMTP synchronization is enforced.
2768
276933. Added "control = caseful_local_part" and "control = "caselower_local_part".
2770
277132. Implemented hosts_connection_nolog.
2772
277333. Added an ACL for QUIT.
2774
277534. Setting "delay_warning=" to disable warnings was not working; it gave a
2776 syntax error.
2777
277835. Added mailbox_size and mailbox_filecount to appendfile.
2779
278036. Added control = no_multiline_responses to ACLs.
2781
278237. There was a bug in the logic of the code that waits for the clock to tick
2783 in the case where the clock went backwards by a substantial amount such
2784 that the microsecond fraction of "now" was more than the microsecond
2785 fraction of "then" (but the whole seconds number was less).
2786
278738. Added support for the libradius Radius client library this is found on
2788 FreeBSD (previously only the radiusclient library was supported).
2789
2790
2791Exim version 4.42
2792-----------------
2793
2794 1. When certain lookups returned multiple values in the form name=value, the
2795 quoting of the values was not always being done properly. Specifically:
2796 (a) If the value started with a double quote, but contained no whitespace,
2797 it was not quoted.
2798 (b) If the value contained whitespace other than a space character (i.e.
2799 tabs or newlines or carriage returns) it was not quoted.
2800 This fix has been applied to the mysql and pgsql lookups by writing a
2801 separate quoting function and calling it from the lookup code. The fix
2802 should probably also be applied to nisplus, ibase and oracle lookups, but
2803 since I cannot test any of those, I have not disturbed their existing code.
2804
2805 2. A hit in the callout cache for a specific address caused a log line with no
2806 reason for rejecting RCPT. Now it says "Previous (cached) callout
2807 verification failure".
2808
2809 3. There was an off-by-one bug in the queryprogram router. An over-long
2810 return line was truncated at 256 instead of 255 characters, thereby
2811 overflowing its buffer with the terminating zero. As well as fixing this, I
2812 have increased the buffer size to 1024 (and made a note to document this).
2813
2814 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2815 when Exim is waiting for an SMTP response from a remote server, Exim
2816 restarts its select() call on the socket, thereby resetting its timeout.
2817 This is not a problem when such interrupts are rare. Somebody set up a cron
2818 job to run exiwhat every 2 minutes, which is less than the normal select()
2819 timeout (5 or 10 minutes). This meant that the select() timeout never
2820 kicked in because it was always reset. I have fixed this by comparing the
2821 time when an interrupt arrives with the time at the start of the first call
2822 to select(). If more time than the timeout has elapsed, the interrupt is
2823 treated as a timeout.
2824
2825 5. Some internal re-factoring in preparation for the addition of Sieve
2826 extensions (by MH). In particular, the "personal" test is moved to a
2827 separate function, and given an option for scanning Cc: and Bcc: (which is
2828 not set for Exim filters).
2829
2830 6. When Exim created an email address using the login of the caller as the
2831 local part (e.g. when creating a From: or Sender: header line), it was not
2832 quoting the local part when it contained special characters such as @.
2833
2834 7. Installed new OpenBSD configuration files.
2835
2836 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2837 try to make them clearer.
2838
2839 9. Callout options, other than the timeout value, were being ignored when
2840 verifying sender addresses in header lines. For example, when using
2841
2842 verify = header_sender/callout=no_cache
2843
2844 the cache was (incorrectly) being used.
2845
284610. Added a missing instance of ${EXE} to the exim_install script; this affects
2847 only the Cygwin environment.
2848
284911. When return_path_on_delivery was set as a log selector, if different remote
2850 addresses in the same message used different return paths and parallel
2851 remote delivery occurred, the wrong values would sometimes be logged.
2852 (Whenever a remote delivery process finished, the return path value from
2853 the most recently started remote delivery process was logged.)
2854
285512. RFC 3848 specifies standard names for the "with" phrase in Received: header
2856 lines when AUTH and/or TLS are in use. This is the "received protocol"
2857 field. Exim used to use "asmtp" for authenticated SMTP, without any
2858 indication (in the protocol name) for TLS use. Now it follows the RFC and
2859 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
2860 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
2861 names appear in log lines as well as in Received: header lines.
2862
286313. Installed MH's patches for Sieve to add the "copy" and "vacation"
2864 extensions, and comparison tests, and to fix some bugs.
2865
286614. Changes to the "personal" filter test:
2867
2868 (1) The test was buggy in that it was just doing the equivalent of
2869 "contains" tests on header lines. For example, if a user's address was
2870 anne@some.where, the "personal" test would incorrectly be true for
2871
2872 To: susanne@some.where
2873
2874 This test is now done by extracting each address from the header in turn,
2875 and checking the entire address. Other tests that are part of "personal"
2876 are now done using regular expressions (for example, to check local parts
2877 of addresses in From: header lines).
2878
2879 (2) The list of non-personal local parts in From: addresses has been
2880 extended to include "listserv", "majordomo", "*-request", and "owner-*",
2881 taken from the Sieve specification recommendations.
2882
2883 (3) If the message contains any header line starting with "List-" it is
2884 treated as non-personal.
2885
2886 (4) The test for "circular" in the Subject: header line has been removed
2887 because it now seems ill-conceived.
2888
288915. Minor typos in src/EDITME comments corrected.
2890
289116. Installed latest exipick from John Jetmore.
2892
289317. If headers_add on a router specified a text string that was too long for
2894 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
2895 of string_sprintf() is now avoided.
2896
289718. $message_body_size was not set (it was always zero) when running the DATA
2898 ACL and the local_scan() function.
2899
290019. For the "mail" command in an Exim filter, no default was being set for
2901 the once_repeat time, causing a random time value to be used if "once" was
2902 specified. (If the value happened to be <= 0, no repeat happened.) The
2903 default is now 0s, meaning "never repeat". The "vacation" command was OK
2904 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
2905 (I found it when inspecting the code).
2906
290720. There is now an overall timeout for performing a callout verification. It
2908 defaults to 4 times the callout timeout, which applies to individual SMTP
2909 commands during the callout. The overall timeout applies when there is more
2910 than one host that can be tried. The timeout is checked before trying the
2911 next host. This prevents very long delays if there are a large number of
2912 hosts and all are timing out (e.g. when the network connections are timing
2913 out). The value of the overall timeout can be changed by specifying an
2914 additional sub-option for "callout", called "maxwait". For example:
2915
2916 verify = sender/callout=5s,maxwait=20s
2917
291821. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
2919 to the end before writing, but this should make it even safer).
2920
292122. Exim was forgetting that it had advertised PIPELINING for the second and
2922 subsequent messages on an SMTP connection. It was also not resetting its
2923 memory on STARTTLS and an internal HELO.
2924
292523. When Exim logs an SMTP synchronization error within a session, it now
2926 records whether PIPELINING has been advertised or not.
2927
292824. Added 3 instances of "(long int)" casts to time_t variables that were being
2929 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
2930 rather than long int.
2931
293225. Installed the latest Cygwin configuration files from the Cygwin maintainer.
2933
293426. Added the never_mail option to autoreply.
2935
2936
2937Exim version 4.41
2938-----------------
2939
2940 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
2941 crash if the getsockname() call failed; this can happen if a connection is
2942 closed very soon after it is established. The problem was simply in the
2943 order in which certain operations were done, causing Exim to try to write
2944 to the SMTP stream before it had set up the file descriptor. The bug has
2945 been fixed by making things happen in the correct order.
2946
2947
2948Exim version 4.40
2949-----------------
2950
2951 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
2952 before the connection was closed, thus losing the rejection response.
2953
2954 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
2955 some early Solaris releases, but causes trouble in current releases where
2956 socklen_t is defined.
2957
2958 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
2959 always exist.
2960
2961 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
2962 configured.
2963
2964 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
2965 that releasing the top of it at the end releases what was used for sub-
2966 expansions (unless the block got too big). However, discard this block if
2967 the first thing is a variable or header, so that we can use its block when
2968 it is dynamic (useful for very large $message_headers, for example).
2969
2970 6. Lookups now cache *every* query, not just the most recent. A new, separate
2971 store pool is used for this. It can be recovered when all lookup caches are
2972 flushed. Lookups now release memory at the end of their result strings.
2973 This has involved some general refactoring of the lookup sources.
2974
2975 7. Some code has been added to the store_xxx() functions to reduce the amount
2976 of flapping under certain conditions.
2977
2978 8. log_incoming_interface used to affect only the <= reception log lines. Now
2979 it causes the local interface and port to be added to several more SMTP log
2980 lines, for example "SMTP connection from", and rejection lines.
2981
2982 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
2983
298410. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
2985
298611. If $host_data was set by virtue of a hosts lookup in an ACL, its value
2987 could be overwritten at the end of the current message (or the start of a
2988 new message if it was set in a HELO ACL). The value is now preserved for
2989 the duration of the SMTP connection.
2990
299112. If a transport had a headers_rewrite setting, and a matching header line
2992 contained an unqualified address, that address was qualified, even if it
2993 did not match any rewriting rules. The underlying bug was that the values
2994 of the flags that permit the existence of unqualified sender and recipient
2995 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
2996 non-local messages, and by -bnq for local messages) were not being
2997 preserved with the message after it was received.
2998
299913. When Exim was logging an SMTP synchronization error, it could sometimes log
3000 "next input=" as part of the text comprising the host identity instead of
3001 the correct text. The code was using the same buffer for two different
3002 strings. However, depending on which order the printing function evaluated
3003 its arguments, the bug did not always show up. Under Linux, for example, my
3004 test suite worked just fine.
3005
300614. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3007 doesn't work with some older versions of Perl. It has been changed to "my",
3008 which in any case is probably the better facility to use.
3009
301015. A really picky compiler found some instances of statements for creating
3011 error messages that either had too many or two few arguments for the format
3012 string.
3013
301416. The size of the buffer for calls to the DNS resolver has been increased
3015 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3016 for addresses that have a lot of PTR records. This alleviates a problem; it
3017 does not fully solve it.
3018
301917. A dnsdb lookup for PTR records that receives more data than will fit in the
3020 buffer now truncates the list and logs the incident, which is the same
3021 action as happens when Exim is looking up a host name and its aliases.
3022 Previously in this situation something unpredictable would happen;
3023 sometimes it was "internal error: store_reset failed".
3024
302518. If a server dropped the connection unexpectedly when an Exim client was
3026 using GnuTLS and trying to read a response, the client delivery process
3027 crashed while trying to generate an error log message.
3028
302919. If a "warn" verb in an ACL added multiple headers to a message in a single
3030 string, for example:
3031
3032 warn message = H1: something\nH2: something
3033
3034 the text was added as a single header line from Exim's point of view
3035 though it ended up OK in the delivered message. However, searching for the
3036 second and subsequent header lines using $h_h2: did not work. This has been
3037 fixed. Similarly, if a system filter added multiple headers in this way,
3038 the routers could not see them.
3039
304020. Expanded the error message when iplsearch is called with an invalid key to
3041 suggest using net-iplsearch in a host list.
3042
304321. When running tests using -bh, any delays imposed by "delay" modifiers in
3044 ACLs are no longer actually imposed (and a message to that effect is
3045 output).
3046
304722. If a "gecos" field in a passwd entry contained escaped characters, in
3048 particular, if it contained a \" sequence, Exim got it wrong when building
3049 a From: or a Sender: header from that name. A second bug also caused
3050 incorrect handling when an unquoted " was present following a character
3051 that needed quoting.
3052
305323. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3054 was not being matched caselessly.
3055
305624. Arranged for all hyphens in the exim.8 source to be escaped with
3057 backslashes.
3058
305925. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3060 properly. Recipient callout cache records were still being keyed to include
3061 the sender, even when use_sender was set false. This led to far more
3062 callouts that were necessary. The sender is no longer included in the key
3063 when use_sender is false.
3064
306526. Added "control = submission" modifier to ACLs.
3066
306727. Added the ${base62d: operator to decode base 62 numbers.
3068
306928. dnsdb lookups can now access SRV records.
3070
307129. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3072 the configuration file.
3073
307430. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3075 (-v) mode. This makes the output for a verbose queue run more intelligible.
3076
307731. Added a use_postmaster feature to recipient callouts.
3078
307932. Added the $body_zerocount variable, containing the number of binary zero
3080 bytes in the message body.
3081
308233. The time of last modification of the "new" subdirectory is now used as the
3083 "mailbox time last read" when there is a quota error for a maildir
3084 delivery.
3085
308634. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3087
308835. Added +ignore_unknown as a special item in host lists.
3089
309036. Code for decoding IPv6 addresses in host lists is now included, even if
3091 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3092 address was recognized as an IP address, but was then not correctly decoded
3093 into binary, causing unexpected and incorrect effects when compared with
3094 another IP address.
3095
3096
3097Exim version 4.34
3098-----------------
3099
3100 1. Very minor rewording of debugging text in manualroute to say "list of
3101 hosts" instead of "hostlist".
3102
3103 2. If verify=header_syntax was set, and a header line with an unqualified
3104 address (no domain) and a large number of spaces between the end of the
3105 name and the colon was received, the reception process suffered a buffer
3106 overflow, and (when I tested it) crashed. This was caused by some obsolete
3107 code that should have been removed. The fix is to remove it!
3108
3109 3. When running in the test harness, delay a bit after writing a bounce
3110 message to get a bit more predictability in the log output.
3111
3112 4. Added a call to search_tidyup() just before forking a reception process. In
3113 theory, someone could use a lookup in the expansion of smtp_accept_max_
3114 per_host which, without the tidyup, could leave open a database connection.
3115
3116 5. Added the variables $recipient_data and $sender_data which get set from a
3117 lookup success in an ACL "recipients" or "senders" condition, or a router
3118 "senders" option, similar to $domain_data and $local_part_data.
3119
3120 6. Moved the writing of debug_print from before to after the "senders" test
3121 for routers.
3122
3123 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3124 problems for message scanning, either using a data ACL, or using
3125 local_scan() because the Received: header was not generated till after they
3126 were called (in order to set the time as the time of reception completion).
3127 I have revised the way this works. The header is now generated after the
3128 body is received, but before the ACL or local_scan() are called. After they
3129 are run, the timestamp in the header is updated.
3130
3131
3132Exim version 4.33
3133-----------------
3134
3135 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3136 before starting a queue runner without re-exec. This happened only when
3137 deliver_drop_privilege was set or when the Exim user was set to root. The
3138 effect of the bug was that timeouts during subsequent deliveries caused
3139 crashes instead of being properly handled. The handler is now left at its
3140 default (and expected) setting.
3141
3142 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3143 message, again when deliver_drop_privilege is set or Exim is run as root.
3144 The bug described in (1) was not present in this case, but the tidying up
3145 of the other signals was missing. I have made the two cases consistent.
3146
3147 3. The ignore_target_hosts setting on a manualroute router was being ignored
3148 for hosts that were looked up using the /MX notation.
3149
3150 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3151 in domain lists.
3152
3153 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3154 operated on the sender address. After changing the $sender_address to <>
3155 for the sender address verify, Exim was re-instated it as the original
3156 (before rewriting) address, but remembering that it had rewritten it, so it
3157 wasn't rewriting it again. This bug also had the effect of breaking the
3158 sender address verification caching when the sender address was rewritten.
3159
3160 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3161 This has been changed so that if the ip literal address matches
3162 ignore_target_hosts, the router declines.
3163
3164 7. Added expansion conditions match_domain, match_address, and match_local_
3165 part (NOT match_host).
3166
3167 8. The placeholder for the Received: header didn't have a length field set.
3168
3169 9. Added code to Exim itself and to exim_lock to test for a specific race
3170 condition that could lead to file corruption when using MBX delivery. The
3171 issue is with the lockfile that is created in /tmp. If this file is removed
3172 after a process has opened it but before that process has acquired a lock,
3173 there is the potential for a second process to recreate the file and also
3174 acquire a lock. This could lead to two Exim processes writing to the file
3175 at the same time. The added code performs the same test as UW imapd; it
3176 checks after acquiring the lock that its file descriptor still refers to
3177 the same named file.
3178
317910. The buffer for building added header lines was of fixed size, 8192 bytes.
3180 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3181 when Exim is built.
3182
318311. Added the smtp_active_hostname option. If used, this will typically be made
3184 to depend on the incoming interface address. Because $interface_address is
3185 not set up until the daemon has forked a reception process, error responses
3186 that can happen earlier (such as "too many connections") no longer contain
3187 a host name.
3188
318912. If an expansion in a condition on a "warn" statement fails because a lookup
3190 defers, the "warn" statement is abandoned, and the next ACL statement is
3191 processed. Previously this caused the whole ACL to be aborted.
3192
319313. Added the iplsearch lookup type.
3194
319514. Added ident_timeout as a log selector.
3196
319715. Added tls_certificate_verified as a log selector.
3198
319916. Added a global option tls_require_ciphers (compare the smtp transport
3200 option of the same name). This controls incoming TLS connections.
3201
320217. I finally figured out how to make tls_require_ciphers do a similar thing
3203 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3204 before starting the TLS session.
3205
320618. Tabs are now shown as \t in -bP output.
3207
320819. If the log selector return_path_on_delivery was set, Exim crashed when
3209 bouncing a message because it had too many Received: header lines.
3210
321120. If two routers both had headers_remove settings, and the first one included
3212 a superfluous trailing colon, the final name in the first list and the
3213 first name in the second list were incorrectly joined into one item (with a
3214 colon in the middle).
3215
3216
3217Exim version 4.32
3218-----------------
3219
3220 1. Added -C and -D options to the exinext utility, mainly to make it easier
3221 to include in the automated testing, but these could be helpful when
3222 multiple configurations are in use.
3223
3224 2. The exinext utility was not formatting the output nicely when there was
3225 an alternate port involved in the retry record key, nor when there was a
3226 message id as well (for retries that were specific to a specific message
3227 and a specific host). It was also confused by IPv6 addresses, because of
3228 the additional colons they contain. I have fixed the IPv4 problem, and
3229 patched it up to do a reasonable job for IPv6.
3230
3231 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3232 delivery, the log line now contains "pipelined" if PIPELINING was used.
3233
3234 4. An SMTP transport process used to panic and die if the bind() call to set
3235 an explicit outgoing interface failed. This has been changed; it is now
3236 treated in the same way as a connect() failure.
3237
3238 5. A reference to $sender_host_name in the part of a conditional expansion
3239 that was being skipped was still causing a DNS lookup. This no longer
3240 occurs.
3241
3242 6. The def: expansion condition was not recognizing references to header lines
3243 that used bh_ and bheader_.
3244
3245 7. Added the _cache feature to named lists.
3246
3247 8. The code for checking quota_filecount in the appendfile transport was
3248 allowing one more file than it should have been.
3249
3250 9. For compatibility with Sendmail, the command line option
3251
3252 -prval:sval
3253
3254 is equivalent to
3255
3256 -oMr rval -oMs sval
3257
3258 and sets the incoming protocol and host name (for trusted callers). The
3259 host name and its colon can be omitted when only the protocol is to be set.
3260 Note the Exim already has two private options, -pd and -ps, that refer to
3261 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3262 "s", but I don't think that's a major issue.
3263
326410. A number of refactoring changes to the code, none of which should affect
3265 Exim's behaviour:
3266
3267 (a) The number of logging options was getting close to filling up the
3268 32-bit word that was used as a bit map. I have split them into two classes:
3269 those that are passed in the argument to log_write(), and those that are
3270 only ever tested independently outside of that function. These are now in
3271 separate 32-bit words, so there is plenty of room for expansion again.
3272 There is no change in the user interface or the logging behaviour.
3273
3274 (b) When building, for example, log lines, the code previously used a
3275 macro that called string_cat() twice, in order to add two strings. This is
3276 not really sufficiently general. Furthermore, there was one instance where
3277 it was actually wrong because one of the argument was used twice, and in
3278 one call a function was used. (As it happened, calling the function twice
3279 did not affect the overall behaviour.) The macro has been replaced by a
3280 function that can join an arbitrary number of extra strings onto a growing
3281 string.
3282
3283 (c) The code for expansion conditions now uses a table and a binary chop
3284 instead of a serial search (which was left over from when there were very
3285 few conditions). Also, it now recognizes conditions like "pam" even when
3286 the relevant support is not compiled in: a suitably worded error message is
3287 given if an attempt is made to use such a condition.
3288
328911. Added ${time_interval:xxxxx}.
3290
329112. A bug was causing one of the ddress fields not to be passed back correctly
3292 from remote delivery subprocesses. The field in question was not being
3293 subsequently used, so this caused to problems in practice.
3294
329513. Added new log selectors queue_time and deliver_time.
3296
329714. Might have fixed a bug in maildirsizefile handling that threw up
3298 "unexpected character" debug warnings, and recalculated the data
3299 unnecessarily. In any case, I expanded the warning message to give more
3300 information.
3301
330215. Added the message "Restricted characters in address" to the statements in
3303 the default ACL that block characters like @ and % in local parts.
3304
330516. Change 71 for release 4.31 proved to be much less benign that I imagined.
3306 Three changes have been made:
3307
3308 (a) There was a serious bug; a negative response to MAIL caused the whole
3309 recipient domain to be cached as invalid, thereby blocking all messages
3310 to all local parts at the same domain, from all senders. This bug has
3311 been fixed. The domain is no longer cached after a negative response to
3312 MAIL if the sender used is not empty.
3313
3314 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3315 been restored.
3316
3317 (c) A new callout option, "use_sender" has been added for people who want
3318 the modified behaviour.
3319
3320
3321Exim version 4.31
3322-----------------
3323
3324 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3325 Larry Rosenman.
3326
3327 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3328 indeed breaks things for older releases.
3329
3330 3. Added additional logging to the case where there is a problem reading data
3331 from a filter that is running in a subprocess using a pipe, in order to
3332 try to track down a specific problem.
3333
3334 4. Testing facility fudge: when running in the test harness and attempting
3335 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3336 getting "No route to host". Convert this to a timeout.
3337
3338 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3339 warning.
3340
3341 6. Some OS don't have socklen_t but use size_t instead. This affects the
3342 fifth argument of getsockopt() amongst other things. This is now
3343 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3344 can be set for individual OS. I have set it for SunOS5, OSF1, and
3345 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3346 some earlier ones do not.
3347
3348 7. Change 4.30/15 was not doing the test caselessly.
3349
3350 8. The standard form for an IPv6 address literal was being rejected by address
3351 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3352 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3353 this, as well as the form without the "IPv6" on the front (but only when
3354 address literals are enabled, of course).
3355
3356 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3357
335810. Exim crashed if a message with an empty sender address specified by -f
3359 encountered a router with an errors_to setting. This could be provoked only
3360 by a command such as
3361
3362 exim -f "" ...
3363
3364 where an empty string was supplied; "<>" did not hit this bug.
3365
336611. Installed PCRE release 4.5.
3367
336812. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3369 remained set. It is now erased.
3370
337113. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3372 times from message ids (which are base 36 rather than the normal 62).
3373
337414. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3375 were being counted as actual protocol errors, and logged if the log
3376 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3377 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3378 and DATA following a set of rejected RCPTs do not count as protocol errors.
3379 In other words, Exim assumes they were pipelined, though this may not
3380 actually be the case. Of course, in all cases the client gets an
3381 appropriate error code.
3382
338315. If a lookup fails in an ACL condition, a message about the failure may
3384 be available; it is used if testing the ACL cannot continue, because most
3385 such messages specify what the cause of the deferral is. However, some
3386 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3387 that caused an old message to be retained and used if a later statement
3388 caused a defer, replacing the real cause of the deferral.
3389
339016. If an IP address had so many PTR records that the DNS lookup buffer
3391 was not large enough to hold them, Exim could crash while trying to process
3392 the truncated data. It now detects and logs this case.
3393
339417. Further to 4.21/58, another change has been made: if (and only if) the
3395 first line of a message (the first header line) ends with CRLF, a bare LF
3396 in a subsequent header line has a space inserted after it, so as not to
3397 terminate the header.
3398
339918. Refactoring: tidied an ugly bit of code in appendfile that copied data
3400 unnecessarily, used atoi() instead of strtol(), and didn't check the
3401 termination when getting file sizes from file names by regex.
3402
340319. Completely re-implemented the support for maildirsize files, in the light
3404 of a number of problems with the previous contributed implementation
3405 (4.30/29). In particular:
3406
3407 . If the quota is zero, the maildirsize file is maintained, but no quota is
3408 imposed.
3409
3410 . If the maildir directory does not exist, it is created before any attempt
3411 to write a maildirsize file.
3412
3413 . The quota value in the file is just a cache; if the quota is changed in
3414 the transport, the new value overrides.
3415
3416 . A regular expression is available for excluding directories from the
3417 count.
3418
341920. The autoreply transport checks the characters in options that define the
3420 message's headers; it allows continued headers, but it was checking with
3421 isspace() after an embedded newline instead of explicitly looking for a
3422 space or a tab.
3423
342421. If all the "regular" hosts to which an address was routed had passed their
3425 expiry times, and had not reached their retry times, the address was
3426 bounced, even if fallback hosts were defined. Now Exim should go on to try
3427 the fallback hosts.
3428
342922. Increased buffer sizes in the callout code from 1024 to 4096 to match the
3430 equivalent code in the SMTP transport. Some hosts send humungous responses
3431 to HELO/EHLO, more than 1024 it seems.
3432
343323. Refactoring: code in filter.c used (void *) for "any old type" but this
3434 gives compiler warnings in some environments. I've now done it "properly",
3435 using a union.
3436
343724. The replacement for inet_ntoa() that is used with gcc on IRIX systems
3438 (because of problems with the built-in one) was declared to return uschar *
3439 instead of char *, causing compiler failure.
3440
344125. Fixed a file descriptor leak when processing alias/forward files.
3442
344326. Fixed a minor format string issue in dbfn.c.
3444
344527. Typo in exim.c: ("dmbnz" for "dbmnz").
3446
344728. If a filter file refered to $h_xxx or $message_headers, and the headers
3448 contained RFC 2047 "words", Exim's memory could, under certain conditions,
3449 become corrupted.
3450
345129. When a sender address is verified, it is cached, to save repeating the test
3452 when there is more than one recipient in a message. However, when the
3453 verification involves a callout, it is possible for different callout
3454 options to be set for different recipients. It is too complicated to keep
3455 track of this in the cache, so now Exim always runs a verification when a
3456 callout is required, relying on the callout cache for the optimization.
3457 The overhead is duplication of the address routing, but this should not be
3458 too great.
3459
346030. Fixed a bug in callout caching. If a RCPT command caused the sender address
3461 to be verified with callout=postmaster, and the main callout worked but the
3462 postmaster check failed, the verification correctly failed. However, if a
3463 subsequent RCPT command asked for sender verification *without* the
3464 postmaster check, incorrect caching caused this verification also to fail,
3465 incorrectly.
3466
346731. Exim caches DNS lookup failures so as to avoid multiple timeouts; however,
3468 it was not caching the DNS options (qualify_single, search_parents) that
3469 were used when the lookup failed. A subsequent lookup with different
3470 options therefore always gave the same answer, though there were cases
3471 where it should not have. (Example: a "domains = !$mx_any" option on a
3472 dnslookup router: the "domains" option is always processed without any
3473 widening, but the router might have qualify_single set.) Now Exim uses the
3474 cached value only when the same options are set.
3475
347632. Added John Jetmore's "exipick" utility to the distribution.
3477
347833. GnuTLS: When an attempt to start a TLS session fails for any reason other
3479 than a timeout (e.g. a certificate is required, and is not provided), an
3480 Exim server now closes the connection immediately. Previously it waited for
3481 the client to close - but if the client is SSL, it seems that they each
3482 wait for each other, leading to a delay before one of them times out.
3483
348434: GnuTLS: Updated the code to use the new GnuTLS 1.0.0 API. I have not
3485 maintained 0.8.x compatibility because I don't think many are using it, and
3486 it is clearly obsolete.
3487
348835. Added TLS support for CRLs: a tls_crl global option and one for the smtp
3489 transport.
3490
349136. OpenSSL: $tls_certificate_verified was being set to 1 even if the
3492 client certificate was expired. A simple patch fixes this, though I don't
3493 understand the full logic of why the verify callback is called multiple
3494 times.
3495
349637. OpenSSL: a patch from Robert Roselius: "Enable client-bug workaround.
3497 Versions of OpenSSL as of 0.9.6d include a 'CBC countermeasure' feature,
3498 which causes problems with some clients (such as the Certicom SSL Plus
3499 library used by Eudora). This option, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS,
3500 disables the coutermeasure allowing Eudora to connect."
3501
350238. Exim was not checking that a write() to a log file succeeded. This could
3503 lead to Bad Things if a log got too big, in particular if it hit a file
3504 size limit. Exim now panics and dies if it cannot write to a log file, just
3505 as it does if it cannot open a log file.
3506
350739. Modified OS/Makefile-Linux so that it now contains
3508
3509 CFLAGS=-O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
3510
3511 The two -D definitions ensure that Exim is compiled with large file
3512 support, which makes it possible to handle log files that are bigger than
3513 2^31.
3514
351540. Fixed a subtle caching bug: if (in an ACL or a set of routers, for
3516 instance) a domain was checked against a named list that involved a lookup,
3517 causing $domain_data to be set, then another domain was checked against the
3518 same list, then the first domain was re-checked, the value of $domain_data
3519 after the final check could be wrong. In particular, if the second check
3520 failed, it could be set empty. This bug probably also applied to
3521 $localpart_data.
3522
352341. The strip_trailing_dot option was not being applied to the address given
3524 with the -f command-line option.
3525
352642. The code for reading a message's header from the spool was incrementing
3527 $received_count, but never initializing it. This meant that the value was
3528 incorrect (doubled) while delivering a message in the same process in which
3529 it was received. In the most common configuration of Exim, this never
3530 happens - a fresh exec is done - but it can happen when
3531 deliver_drop_privilege is set.
3532
353343. When Exim logs an SMTP synchronization error - client data sent too soon -
3534 it now includes up to 150 characters of the unexpected data in the log
3535 line.
3536
353744. The exim_dbmbuild utility uses fixed size buffers for reading input lines
3538 and building data strings. The size of both of these buffers was 10 000
3539 bytes - far larger than anybody would *ever* want, thought I. Needless to
3540 say, somebody hit the limit. I have increased the maximum line length to
3541 20 000 and the maximum data length of concatenated lines to 100 000. I have
3542 also fixed two bugs, because there was no checking on these buffers. Tsk,
3543 tsk. Now exim_dbmbuild gives a message and exits with an error code if a
3544 buffer is too small.
3545
354645. The exim_dbmbuild utility did not support quoted keys, as Exim does in
3547 lsearch lookups. Now it does.
3548
354946. When parsing a route_list item in a manualroute router, a fixed-length
3550 buffer was used for the list of hosts. I made this 1024 bytes long,
3551 thinking that nobody would ever have a list of hosts that long. Wrong.
3552 Somebody had a whole pile of complicated expansion conditions, and the
3553 string was silently truncated, leading to an expansion error. It turns out
3554 that it is easier to change to an unlimited length (owing to other changes
3555 that have happened since this code was originally written) than to build
3556 structure for giving a limitation error. The length of the item that
3557 expands into the list of hosts is now unlimited.
3558
355947. The lsearch lookup could not handle data where the length of text line was
3560 more than 4095 characters. Such lines were truncated, leading to shortened
3561 data being returned. It should now handle lines of any length.
3562
356348. Minor wording revision: "cannot test xxx in yyy ACL" becomes "cannot test
3564 xxx condition in yyy ACL" (e.g. "cannot test domains condition in DATA
3565 ACL").
3566
356749. Cosmetic tidy to scripts like exicyclog that are generated by globally
3568 replacing strings such as BIN_DIRECTORY in a source file: the replacement
3569 no longer happens in comment lines. A list of replacements is now placed
3570 at the head of all of the source files, except those whose only change is
3571 to replace PERL_COMMAND in the very first #! line.
3572
357350. Replaced the slow insertion sort in queue.c, for sorting the list of
3574 messages on the queue, with a bottom-up merge sort, using code contributed
3575 by Michael Haardt. This should make operations like -bp somewhat faster on
3576 large queues. It won't affect queue runners, except when queue_run_in_order
3577 is set.
3578
357951. Installed eximstats 1.31 in the distribution.