Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
dee5a20a 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.489 2007/03/13 09:59:07 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
b4ed4da0 155
5dd1517f
PH
156Exim version 4.66
157-----------------
158
159PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
160 fixed by 4.65/MH/01 (is this a record?) are fixed:
161
162 (i) An empty string was always treated as zero by the numeric comparison
163 operators. This behaviour has been restored.
164
165 (ii) It is documented that the numeric comparison operators always treat
166 their arguments as decimal numbers. This was broken in that numbers
167 starting with 0 were being interpreted as octal.
168
169 While fixing these problems I realized that there was another issue that
170 hadn't been noticed. Values of message_size_limit (both the global option
171 and the transport option) were treated as octal if they started with 0.
172 The documentation was vague. These values are now always treated as
173 decimal, and I will make that clear in the documentation.
174
175
93cfa765
TK
176Exim version 4.65
177-----------------
178
179TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
180 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
181 versions. (#438)
182
d6066548
MH
183MH/01 Don't check that the operands of numeric comparison operators are
184 integers when their expansion is in "skipping" mode (fixes bug
185 introduced by 4.64-PH/07).
186
4362ff0d
PH
187PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
188 child addresses, Exim now panics and dies. Previously, because the count
189 is held in a short int, deliveries were likely to be lost. As such a
190 large number of recipients for a single message is ridiculous
191 (performance will be very, very poor), I have chosen to impose a limit
192 rather than extend the field.
193
93cfa765 194
944e9e9c
TF
195Exim version 4.64
196-----------------
aa41d2de 197
21d74bd9
TK
198TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
199 leftover -K file (the existence of which was triggered by #402).
200 While we were at it, introduced process PID as part of the -K
201 filename. This should rule out race conditions when creating
202 these files.
203
204TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
205 processing considerably. Previous code took too long for large mails,
206 triggering a timeout which in turn triggers #401.
207
208TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
209 in the DK code in transports.c. sendfile() is not really portable,
210 hence the _LINUX specificness.
944e9e9c
TF
211
212TF/01 In the add_headers option to the mail command in an Exim filter,
213 there was a bug that Exim would claim a syntax error in any
214 header after the first one which had an odd number of characters
215 in the field name.
216
2b1c6e3a
PH
217PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
218 callout verification, Exim cached a "reject" for the entire domain. This
219 is correct for most verifications, but it is not correct for a recipient
220 verification with use_sender or use_postmaster set, because in that case
221 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
222 case of MAIL FROM:<> rejection from other early rejections (e.g.
223 rejection of HELO). When verifying a recipient using a non-null MAIL
224 address, the cache is ignored if it shows MAIL FROM:<> rejection.
225 Whatever the result of the callout, the value of the domain cache is
226 left unchanged (for any other kind of callout, getting as far as trying
227 RCPT means that the domain itself is ok).
228
1f872c80
PH
229PH/02 Tidied a number of unused variable and signed/unsigned warnings that
230 gcc 4.1.1 threw up.
231
232PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
233 manifest itself as EPIPE rather than ECONNECT. When tidying away a
234 session, the daemon ignores ECONNECT errors and logs others; it now
235 ignores EPIPE as well.
236
d203e649
PH
237PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
238 (quoted-printable decoding).
239
cc2ed8f7 240PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 241 later the small subsequent patch to fix an introduced bug.
f951fd57 242
ddfcd446
PH
243PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
244
d45b1de8
PH
245PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
246
247PH/08 An error is now given if message_size_limit is specified negative.
248
38a0a95f 249PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 250 to be given (somewhat) arbitrary names.
38a0a95f 251
a2405d83
JJ
252JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
253 in 4.64-PH/09.
254
255JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
256 miscellaneous code fixes
257
6ea85e9a
PH
258PH/10 Added the log_reject_target ACL modifier to specify where to log
259 rejections.
260
26da7e20
PH
261PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
262 hostname. This is wrong, because it relates to the incoming message (and
263 probably the interface on which it is arriving) and not to the outgoing
264 callout (which could be using a different interface). This has been
265 changed to use the value of the helo_data option from the smtp transport
266 instead - this is what is used when a message is actually being sent. If
267 there is no remote transport (possible with a router that sets up host
268 addresses), $smtp_active_hostname is used.
6ea85e9a 269
14aa5a05 270PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 271 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
272 (a) The code assumed that strncpy() returns a negative number on buffer
273 overflow, which isn't the case. Replaced with Exim's string_format()
274 function.
275 (b) There were several signed/unsigned issues. I just did the minimum
276 hacking in of casts. There is scope for a larger refactoring.
277 (c) The code used strcasecmp() which is not a standard C function.
278 Replaced with Exim's strcmpic() function.
279 (d) The code set only $1; it now sets $auth1 as well.
280 (e) A simple test gave the error "authentication client didn't specify
281 service in request". It would seem that Dovecot has changed its
282 interface. Fortunately there's a specification; I followed it and
283 changed what the client sends and it appears to be working now.
284
ff75a1f7
PH
285PH/13 Added $message_headers_raw to provide the headers without RFC 2047
286 decoding.
287
e6f6568e
PH
288PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
289 address A is aliased to B and C, where B exists and C does not. Without
290 -v the output is "A verified" because verification stops after a
291 successful redirection if more than one address is generated. However,
292 with -v the child addresses are also verified. Exim was outputting "A
293 failed to verify" and then showing the successful verification for C,
294 with its parentage. It now outputs "B failed to verify", showing B's
295 parentage before showing the successful verification of C.
296
d6f6e0dc
PH
297PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
298 look up a TXT record in a specific list after matching in a combined
299 list.
300
322050c2
PH
301PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
302 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
303 they consult the DNS. I had assumed they would set it the way they
304 wanted; and indeed my experiments on Linux seem to show that in some
305 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
306 To be on the safe side, however, I have now made the interface to
307 host_find_byname() similar to host_find_bydns(), with an argument
308 containing the DNS resolver options. The host_find_byname() function now
309 sets these options at its start, just as host_find_bydns() does. The smtp
310 transport options dns_qualify_single and dns_search_parents are passed to
311 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
312 of host_find_byname() use the default settings of RES_DEFNAMES
313 (qualify_single) but not RES_DNSRCH (search_parents).
314
08955dd3
PH
315PH/17 Applied (a modified version of) Nico Erfurth's patch to make
316 spool_read_header() do less string testing, by means of a preliminary
317 switch on the second character of optional "-foo" lines. (This is
318 overdue, caused by the large number of possibilities that now exist.
319 Originally there were few.) While I was there, I also converted the
320 str(n)cmp tests so they don't re-test the leading "-" and the first
321 character, in the hope this might squeeze out yet more improvement.
322
1eccaa59
PH
323PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
324 flag allowing group syntax was set by the header_syntax check but not
325 turned off, possible causing trouble later; (2) The flag was not being
326 set at all for the header_verify test, causing "group"-style headers to
327 be rejected. I have now set it in this case, and also caused header_
328 verify to ignore an empty address taken from a group. While doing this, I
329 came across some other cases where the code for allowing group syntax
330 while scanning a header line wasn't quite right (mostly, not resetting
331 the flag correctly in the right place). These bugs could have caused
332 trouble for malformed header lines. I hope it is now all correct.
333
602e59e5
PH
334PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
335 with the "reply" argument non-NULL. The code, however (which originally
336 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
337 but it didn't always do it. This confused somebody who was copying the
338 code for some other use. I have removed all the tests.
339
411ef850
PH
340PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
341 feature that was used to support insecure browsers during the U.S. crypto
342 embargo. It requires special client support, and Exim is probably the
343 only MTA that supported it -- and would never use it because real RSA is
344 always available. This code has been removed, because it had the bad
345 effect of slowing Exim down by computing (never used) parameters for the
346 RSA_EXPORT functionality.
347
7befa435
PH
348PH/21 On the advice of Timo Sirainen, added a check to the dovecot
349 authenticator to fail if there's a tab character in the incoming data
350 (there should never be unless someone is messing about, as it's supposed
351 to be base64-encoded). Also added, on Timo's advice, the "secured" option
352 if the connection is using TLS or if the remote IP is the same as the
353 local IP, and the "valid-client-cert option" if a client certificate has
354 been verified.
355
48da4259 356PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
357 authenticators. This can be used for authorization after authentication
358 succeeds. (In the case of plaintext, it servers for both authentication
359 and authorization.)
360
48da4259
PH
361PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
362 if any retry times were supplied.
363
d1d5595c
PH
364PH/24 Exim crashed if verify=helo was activated during an incoming -bs
365 connection, where there is no client IP address to check. In this
366 situation, the verify now always succeeds.
367
0ef732d9
PH
368PH/25 Applied John Jetmore's -Mset patch.
369
328895cc
PH
370PH/26 Added -bem to be like -Mset, but loading a message from a file.
371
fd700877
PH
372PH/27 In a string expansion for a processed (not raw) header when multiple
373 headers of the same name were present, leading whitespace was being
374 removed from all of them, but trailing whitespace was being removed only
375 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
376 before concatenation. Completely empty headers in a concatenation (as
377 before) are ignored.
fd700877 378
8dce1a6f
PH
379PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
380 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
381
17af4a17
PH
382PH/29 [Removed. This was a change that I later backed out, and forgot to
383 correct the ChangeLog entry (that I had efficiently created) before
384 committing the later change.]
f6c332bd
PH
385
386PH/30 Exim was sometimes attempting to deliver messages that had suffered
387 address errors (4xx response to RCPT) over the same connection as other
388 messages routed to the same hosts. Such deliveries are always "forced",
389 so retry times are not inspected. This resulted in far too many retries
390 for the affected addresses. The effect occurred only when there were more
391 hosts than the hosts_max_try setting in the smtp transport when it had
392 the 4xx errors. Those hosts that it had tried were not added to the list
393 of hosts for which the message was waiting, so if all were tried, there
394 was no problem. Two fixes have been applied:
395
396 (i) If there are any address or message errors in an SMTP delivery, none
397 of the hosts (tried or untried) are now added to the list of hosts
398 for which the message is waiting, so the message should not be a
399 candidate for sending over the same connection that was used for a
400 successful delivery of some other message. This seems entirely
401 reasonable: after all the message is NOT "waiting for some host".
402 This is so "obvious" that I'm not sure why it wasn't done
403 previously. Hope I haven't missed anything, but it can't do any
404 harm, as the worst effect is to miss an optimization.
405
406 (ii) If, despite (i), such a delivery is accidentally attempted, the
407 routing retry time is respected, so at least it doesn't keep
408 hammering the server.
409
c1114884
PH
410PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
411 in ${readsocket because some servers need this prod.
412
7a0743eb
PH
413PH/32 Added some extra debug output when updating a wait-xxx database.
414
0d85fa3f
PH
415PH/33 The hint "could be header name not terminated by colon", which has been
416 given for certain expansion errors for a long time, was not being given
417 for the ${if def:h_colon_omitted{... case.
418
1bf43b78
PH
419PH/34 The spec says: "With one important exception, whenever a domain list is
420 being scanned, $domain contains the subject domain." There was at least
421 one case where this was not true.
422
520de300
PH
423PH/35 The error "getsockname() failed: connection reset by peer" was being
424 written to the panic log as well as the main log, but it isn't really
425 panic-worthy as it just means the connection died rather early on. I have
426 removed the panic log writing for the ECONNRESET error when getsockname()
427 fails.
428
48c7f9e2
PH
429PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
430 runs only) independently of the message's sender address. This meant
431 that, if the 4xx error was in fact related to the sender, a different
432 message to the same recipient with a different sender could confuse
433 things. In particualar, this can happen when sending to a greylisting
434 server, but other circumstances could also provoke similar problems.
435 I have changed the default so that the retry time for these errors is now
436 based a combination of the sender and recipient addresses. This change
437 can be overridden by setting address_retry_include_sender=false in the
438 smtp transport.
439
99ea1c86
PH
440PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
441 remote server are returned as part of bounce messages. This was not
442 happening for LMTP over a pipe (the lmtp transport), but now it is the
443 same for both kinds of LMTP.
444
a2042e78
PH
445PH/38 Despite being documented as not happening, Exim was rewriting addresses
446 in header lines that were in fact CNAMEs. This is no longer the case.
447
4fbcfc2e
PH
448PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
449 and queue runs started by the daemon processed all messages. This has
450 been fixed so that -R and -S can now usefully be given with -q<time>.
451
aa41d2de
PH
452PH/40 Import PCRE release 6.7 (fixes some bugs).
453
af561417
PH
454PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
455
3cc66b45
PH
456PH/42 Give an error if -q is specified more than once.
457
194cc0e4
PH
458PH/43 Renamed the variables $interface_address and $interface_port as
459 $received_ip_address and $received_port, to make it clear that these
460 values apply to message reception, and not to the outgoing interface when
461 a message is delivered. (The old names remain recognized, of course.)
462
a401ddaa
PH
463PH/44 There was no timeout on the connect() call when using a Unix domain
464 socket in the ${readsocket expansion. There now is.
465
4e88a19f
PH
466PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
467 be meaningful with "accept".
468
d7d7b289
SC
469SC/01 Eximstats V1.43
470 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
471
472SC/02 Eximstats V1.44
473 Use a glob alias rather than an array ref in the generated
474 parser. This improves both readability and performance.
475
476SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
477 Collect SpamAssassin and rejection statistics.
478 Don't display local sender or destination tables unless
479 there is data to show.
480 Added average volumes into the top table text output.
481
482SC/04 Eximstats V1.46
483 Collect data on the number of addresses (recipients)
484 as well as the number of messages.
485
486SC/05 Eximstats V1.47
487 Added 'Message too big' to the list of mail rejection
488 reasons (thanks to Marco Gaiarin).
489
490SC/06 Eximstats V1.48
491 Mainlog lines which have GMT offsets and are too short to
492 have a flag are now skipped.
493
494SC/07 Eximstats V1.49 (Alain Williams)
495 Added the -emptyok flag.
496
497SC/08 Eximstats V1.50
498 Fixes for obtaining the IP address from reject messages.
499
0ea2a468
JJ
500JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
501 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
502 whitesspace changes from 4.64-PH/27
503
504JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
505 match 4.64-PH/13
506
507JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
508 are found, allow negative numbers in numeric criteria)
509
510JJ/06 exipick.20061117.2, added new $message_body_missing variable
511
512JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
513 to match changes made in 4.64-PH/43
514
8a10f5a4
PH
515PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
516
30e18802
PH
517PH/47 Put in an explicit test for a DNS lookup of an address record where the
518 "domain" is actually an IP address, and force a failure. This locks out
519 those revolvers/nameservers that support "A-for-A" lookups, in
520 contravention of the specifications.
521
55728a4f
PH
522PH/48 When a host name was looked up from an IP address, and the subsequent
523 forward lookup of the name timed out, the host name was left in
524 $sender_host_name, contrary to the specification.
d7d7b289 525
d7837193
PH
526PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
527 restricted to single-key lookups, Exim was not diagnosing an error if
528 * or *@ was used with a query-style lookup.
529
87054a31
PH
530PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
531
ea2c01d2
MH
532MH/01 local_scan ABI version incremented to 1.1. It should have been updated
533 long ago, but noone interested enough thought of it. Let's just say that
534 the "1.1" means that there are some new functions that weren't there at
535 some point in the past.
536
e4fa6968
PH
537PH/51 Error processing for expansion failure of helo_data from an smtp
538 transport during callout processing was broken.
539
56f5d9bd
PH
540PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
541 tested/used via the -bh/-bhc/-bs options.
542
922e1c28
PH
543PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
544 bug, fixed in subsequent PCRE releases).
545
21eb6e72
PH
546PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
547 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
548
a0540757
PH
549PH/55 Check for a ridiculously long file name in exim_dbmbuild.
550
944e9e9c 551
478be7b0
SC
552Exim version 4.63
553-----------------
554
555SC/01 Use a glob alias rather than an array ref in eximstats generated
556 parser. This improves both readability and performance.
557
558SC/02 Collect SpamAssassin and rejection statistics in eximstats.
559 Don't display local sender or destination tables in eximstats unless
560 there is data to show.
561 Added average volumes into the eximstats top table text output.
562
563SC/03 Collect data on the number of addresses (recipients) as well
564 as the number of messages in eximstats.
565
2b965a65
TF
566TF/01 Correct an error in the documentation for the redirect router. Exim
567 does (usually) call initgroups() when daemonizing.
478be7b0 568
45b91596
PH
569TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
570 with consistent privilege compared to when running as a daemon.
478be7b0 571
c59f5781
TF
572TF/03 Note in the spec that $authenticated_id is not set for local
573 submissions from trusted users.
574
90fc3069
TF
575TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
576 Thanks to Dean Brooks <dean@iglou.com> for the patch.
577
6083aca0
TF
578TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
579 by adding some example configuration directives to the default
580 configuration file. A little bit of work is required to uncomment the
581 directives and define how usernames and passwords are checked, but
582 there is now a framework to start from.
583
765b530f
PH
584PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
585 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
586 without this. I don't know how relevant this is to other LDAP libraries.
587
4e167a8c
PH
588PH/02 Add the verb name to the "unknown ACL verb" error.
589
4608d683
PH
590PH/03 Magnus Holmgren's patch for filter_prepend_home.
591
b8dc3e4a
PH
592PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
593
5418e93b
PH
594PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
595 directory not expanded when it should be if an expanded home directory
596 was set for the address (which is overridden by the transport).
597
b4a9bda2
PH
598PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
599 libradius.
600
45b91596
PH
601PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
602 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
603 because it is too late at that time, and has no effect.
604
5547e2c5
PH
605PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
606 security issue with \' (bugzilla #107). I could not use the
607 PQescapeStringConn() function, because it needs a PGconn value as one of
608 its arguments.
609
dbcef0ea
PH
610PH/08 When testing addresses using -bt, indicate those final addresses that
611 are duplicates that would not cause an additional delivery. At least one
612 person was confused, thinking that -bt output corresponded to deliveries.
613 (Suppressing duplicates isn't a good idea as you lose the information
614 about possibly different redirections that led to the duplicates.)
615
25257489
PH
616PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
617 systems where poll() doesn't work, in particular OS X.
618
c816d124
PH
619PH/10 Added more information to debugging output for retry time not reached.
620
a9ccd69a
PH
621PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
622 operations in malware.c.
623
75fa1910
PH
624PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
625 signatures.
626
a7d7aa58
PH
627PH/13 If write_rejectlog was set false when logging was sent to syslog with
628 syslog_duplication set false, log lines that would normally be written
629 both the the main log and to the reject log were not written to syslog at
630 all.
631
42119b09
PH
632PH/14 In the default configuration, change the use of "message" in ACL warn
633 statements to "add_header".
634
41609df5
PH
635PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
636 not followed by a command (e.g. "seen endif").
637
a5bd321b
PH
638PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
639 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
640 latter.
641
e85a7ad5 642PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
643 so that it is now:
644
e85a7ad5
PH
645 ${if or { \
646 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
647 { match{$h_precedence:}{(?i)bulk|list|junk} } \
648 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
649 }{no}{yes}}
650
e85a7ad5
PH
651 The Auto-Submitted: and various List- headers are standardised, whereas I
652 don't think Precedence: ever was.
5dff5817 653
d8fe1c03
PH
654PH/18 Refactored debugging code in route_finduser() to show more information,
655 in particular, the error code if getpwnam() issues one.
656
16282d2b
PH
657PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
658 This is apparently needed in addition to the PH/07 change above to avoid
659 any possible encoding problems.
660
35d40a98
PH
661PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
662 but not after initializing Perl.
663
034d99ab
PH
664PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
665 output them only if debugging. By default they are written stderr,
666 apparently, which is not desirable.
667
6ec97b1b
PH
668PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
669 queries.
670
e22ca4ac
JJ
671JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
672 --not options
673
674JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
675
33d73e3b
PH
676PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
677 authenticated or an ident call has been made. Suppress the default
678 values for $authenticated_id and $authenticated_sender (but permit -oMai
679 and -oMas) when testing with -bh.
680
9ecb03f3
PH
681PH/24 Re-jigged the order of the tests in the default configuration so that the
682 tests for valid domains and recipients precede the DNS black list and CSA
683 tests, on the grounds that those ones are more expensive.
684
084efe8d
PH
685PH/25 Exim was not testing for a space following SMTP commands such as EHLO
686 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
687 This bug exists in every version of Exim that I still have, right back to
688 0.12.
689
366fc9f0
PH
690PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
691 However, an attempt to turn on case-sensitivity in a regex key by
692 including (?-i) didn't work because the subject string was already
693 lowercased, and the effects were non-intuitive. It turns out that a
694 one-line patch can be used to allow (?-i) to work as expected.
695
c59f5781 696
c887c79e
TF
697Exim version 4.62
698-----------------
699
700TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
701 other effects) broke the use of negated acl sub-conditions.
702
1cce3af8
PH
703PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
704 patch).
705
afb3eaaf
PH
706PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
707 "Deny" causes Exim to reject the incoming connection with a 554 error.
708 Unfortunately, if there is a major crisis, such as a disk failure,
709 tcp-wrappers gives "deny", whereas what one would like would be some
710 kind of temporary error. A kludge has been added to help with this.
711 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
712 554 error is used if errno is still zero or contains ENOENT (which occurs
713 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
714 451 error is used.
715
e173618b
PH
716PH/03 Add -lutil to the default FreeBSD LIBS setting.
717
dd16e114
PH
718PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
719 errors. Otherwise a message that provokes a temporary error (when other
720 messages do not) can cause a whole host to time out.
721
f7fd3850
PH
722PH/05 Batch deliveries by appendfile and pipe transports did not work when the
723 addresses were routed directly to files or pipes from a redirect router.
724 File deliveries just didn't batch; pipe deliveries might have suffered
725 odd errors.
726
d87df92c
PH
727PH/06 A failure to get a lock for a hints database would erroneously always say
728 "Failed to get write lock", even when it was really a read lock.
729
7e9f683d
PH
730PH/07 The appendfile transport was creating MBX lock files with a fixed mode
731 of 0600. This has been changed to use the value of the lockfile_mode
732 option (which defaults to 0600).
733
bfad5236
PH
734PH/08 Applied small patch from the Sieve maintainer.
735
01c490df
PH
736PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
737 folder from quota calculations, a direct delivery into this folder messed
738 up the contents of the maildirsize file. This was because the regex was
739 used only to exclude .Trash (or whatever) when the size of the mailbox
740 was calculated. There was no check that a delivery was happening into an
741 excluded directory. This bug has been fixed by ignoring all quota
742 processing for deliveries into excluded directories.
743
d6629cdc
PH
744PH/10 Added the maildirfolder_create_regex option to appendfile.
745
1cce3af8 746
214e2000
PH
747Exim version 4.61
748-----------------
749
750PH/01 The code for finding all the local interface addresses on a FreeBSD
751 system running IPv6 was broken. This may well have applied to all BSD
752 systems, as well as to others that have similar system calls. The broken
753 code found IPv4 interfaces correctly, but gave incorrect values for the
754 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
755 that it would not match correctly against @[] and not recognize the IPv6
756 addresses as local.
757
f9daeae0
PH
758PH/02 The ipliteral router was not recognizing addresses of the form user@
759 [ipv6:....] because it didn't know about the "ipv6:" prefix.
760
7e66e54d
PH
761PH/03 Added disable_ipv6.
762
c8ea1597
PH
763PH/04 Changed $reply_address to use the raw form of the headers instead of the
764 decoded form, because it is most often used to construct To: headers
765 lines in autoreplies, and the decoded form may well be syntactically
766 invalid. However, $reply_address has leading white space removed, and all
767 newlines turned into spaces so that the autoreply transport does not
768 grumble.
769
911f6fde
PH
770PH/05 If group was specified without a user on a router, and no group or user
771 was specified on a transport, the group from the router was ignored.
772
47ca6d6c
PH
773PH/06 Increased the number of ACL variables to 20 of each type, and arranged
774 for visible compile-time settings that can be used to change these
775 numbers, for those that want even more. Backwards compatibility with old
776 spool files has been maintained. However, going back to a previous Exim
777 release will lost any variables that are in spool files.
778
ed0e9820
PH
779PH/07 Two small changes when running in the test harness: increase delay when
780 passing a TCP/IP connection to a new process, in case the original
781 process has to generate a bounce, and remove special handling of
782 127.0.0.2 (sic), which is no longer necessary.
783
eff37e47
PH
784PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
785 be the same on different OS.
786
1921d2ea
PH
787PH/09 Moved a debug statement in filter processing to avoid a race problem when
788 testing.
789
b3f69ca8
JJ
790JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
791 whether --show-vars was specified or not
792
793JJ/02 exipick: Added support for new ACL variable spool format introduced
794 in 4.61-PH/06
795
424a1c63
PH
796PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
797 syntactically invalid From: or Reply-to: line, and a filter used this to
798 generate an autoreply, and therefore failed to obtain an address for the
799 autoreply, Exim could try to deliver to a non-existent relative file
800 name, causing unrelated and misleading errors. What now happens is that
801 it logs this as a hard delivery error, but does not attempt to create a
802 bounce message.
803
7a100415
PH
804PH/11 The exinext utility has a -C option for testing purposes, but although
805 the given file was scanned by exinext itself; it wasn't being passed on
806 when Exim was called.
807
19b9dc85
PH
808PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
809 an end-of-file indication when reading a command response.
810
309bd837
PH
811PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
812 compiled. In many other places in Exim, IPv6 addresses are always
813 recognized, so I have changed this. It also means that IPv4 domain
814 literals of the form [IPV4:n.n.n.n] are now always recognized.
815
59e82a2a
PH
816PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
817 used if the router is not running as root, for example, when verifying at
818 ACL time, or when using -bh. The debugging output from this situation was
819 non-existent - all you got was a failure to exec. I have made two
820 changes:
821
822 (a) Failures to set uid/gid, the current directory, or a process leader
823 in a subprocess such as that created by queryprogram now generate
824 suitable debugging ouput when -d is set.
825
826 (b) The queryprogram router detects when it is not running as root,
827 outputs suitable debugging information if -d is set, and then runs
828 the subprocess without attempting to change uid/gid.
829
9edc04ce
PH
830PH/15 Minor change to Makefile for building test_host (undocumented testing
831 feature).
832
1349e1e5
PH
833PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
834 additional section of a DNS packet that returns MX or SRV records.
835 Instead, it always explicitly searches for A/AAAA records. This avoids
836 major problems that occur when a DNS server includes only records of one
837 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
838 fixed another bug: if SRV records were looked up and the corresponding
839 address records were *not* found in the additional section, the port
840 values from the SRV records were lost.
841
ea49d0e1
PH
842PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
843 using the correct key (the original address) when searching the retry
844 rules in order to find which one to use for generating the retry hint.
845
064a94c9
PH
846PH/18 If quota_warn_message contains a From: header, Exim now refrains from
847 adding the default one. Similarly, if it contains a Reply-To: header, the
848 errors_reply_to option, if set, is not used.
849
727071f8
PH
850PH/19 When calculating a retry time, Exim used to measure the "time since
851 failure" by looking at the "first failed" field in the retry record. Now
852 it does not use this if it is later than than the arrival time of the
853 message. Instead it uses the arrival time. This makes for better
854 behaviour in cases where some deliveries succeed, thus re-setting the
855 "first failed" field. An example is a quota failure for a huge message
856 when small messages continue to be delivered. Without this change, the
857 "time since failure" will always be short, possible causing more frequent
858 delivery attempts for the huge message than are intended.
dd16e114 859 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 860
f78eb7c6
PH
861PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
862 $1, $2, $3) because the numerical variables can be reset during some
863 expansion items (e.g. "match"), thereby losing the authentication data.
864
21c28500
PH
865PH/21 Make -bV show the size of off_t variables so that the test suite can
866 decide whether to run tests for quotas > 2G.
867
868PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
869 mailbox_size, and mailbox_filecount in the appendfile transport. If a
870 filecount value is greater than 2G or if a quota value is greater than 2G
871 on a system where the size of off_t is not greater than 4, a panic error
872 is given.
873
1688f43b
PH
874PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
875 never match. The debug and -bh output now contains an explicit error
876 message indicating a malformed IPv4 address or mask.
877
878PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
879 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
880 PH/23 above applies.
881
9675b384
PH
882PH/25 Do not write to syslog when running in the test harness. The only
883 occasion when this arises is a failure to open the main or panic logs
884 (for which there is an explicit test).
885
6a3f1455
PH
886PH/26 Added the /no_tell option to "control=freeze".
887
dac79d3e
PH
888PH/27 If a host name lookup failed very early in a connection, for example, if
889 the IP address matched host_lookup and the reverse lookup yielded a name
890 that did not have a forward lookup, an error message of the form "no IP
891 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
892 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 893
5977a0b3
PH
894PH/28 An enabling patch from MH: add new function child_open_exim2() which
895 allows the sender and the authenticated sender to be set when
896 submitting a message from within Exim. Since child_open_exim() is
897 documented for local_scan(), the new function should be too.
898
c91535f3
PH
899PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
900 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
901 results in an empty string is now treated as unset.
902
0d46a8c8
PH
903PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
904
278c6e6c
PH
905PH/31 Added sender_verify_fail logging option.
906
2cbb4081
PH
907PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
908 needed by RFC 822 but not by RFC 2822 was commented out. I have now
909 tidied the source and removed it altogether.
910
3eef829e
PH
911PH/33 When a queue run was abandoned because the load average was too high, a
912 log line was always written; now it is written only if the queue_run log
913 selector is set. In addition, the log line for abandonment now contains
914 information about the queue run such as the pid. This is always present
915 in "start" and "stop" lines but was omitted from the "abandon" line.
916
1ab95fa6
PH
917PH/34 Omit spaces between a header name and the colon in the error message that
918 is given when verify = headers_syntax fails (if there are lots of them,
919 the message gets confusing).
920
230205fc
PH
921PH/35 Change the default for dns_check_names_pattern to allow slashes within
922 names, as there are now some PTR records that contain slashes. This check
923 is only to protect against broken name servers that fall over on strange
924 characters, so the fact that it applies to all lookups doesn't matter.
925
75e0e026
PH
926PH/36 Now that the new test suite is complete, we can remove some of the
927 special code in Exim that was needed for the old test suite. For example,
928 sorting DNS records because real resolvers return them in an arbitrary
929 order. The new test suite's fake resolver always returns records in the
930 same order.
931
932PH/37 When running in the test harness, use -odi for submitted messages (e.g.
933 bounces) except when queue_only is set, to avoid logging races between
934 the different processes.
935
145396a6
PH
936PH/38 Panic-die if .include specifies a non-absolute path.
937
3cd34f13
PH
938PH/39 A tweak to the "H" retry rule from its user.
939
11121d3d
JJ
940JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
941 a label. They prevented compilation on older perls.
942
943JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
944 a warning to be raised on newish perls.
945
946JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
947 on queue. Changes to match documented behaviour of showing count of
948 messages matching specified criteria.
949
8def5aaf
PH
950PH/40 Changed the default ident timeout from 30s to 5s.
951
929ba01c
PH
952PH/41 Added support for the use of login_cap features, on those BSD systems
953 that have them, for controlling the resources used by pipe deliveries.
954
2632889e
PH
955PH/42 The content-scanning code uses fopen() to create files in which to put
956 message data. Previously it was not paying any attention to the mode of
957 the files. Exim runs with umask(0) because the rest of the code creates
958 files with open(), and sets the required mode explicitly. Thus, these
959 files were ending up world-writeable. This was not a big issue, because,
960 being within the spool directory, they were not world-accessible. I have
961 created a function called modefopen, which takes an additional mode
962 argument. It sets umask(777), creates the file, chmods it to the required
963 mode, then resets the umask. All the relevant calls to fopen() in the
964 content scanning code have been changed to use this function.
965
944a9c55
PH
966PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
967 to 24 hours. This avoids potential overflow problems when processing G
968 and H retry rules. I suspect nobody ever tinkers with this value.
969
4a23603b
PH
970PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
971
4730f942
PH
972PH/45 When the plaintext authenticator is running as a client, the server's
973 challenges are checked to ensure they are valid base64 strings. By
974 default, the authentication attempt is cancelled if an invalid string is
975 received. Setting client_ignore_invalid_base64 true ignores these errors.
976 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
977 they are received. Thus, the responses can be made to depend on the
978 challenges. If an invalid string is ignored, an empty string is placed in
979 the variable.
980
30dba1e6
PH
981PH/46 Messages that are created by the autoreply transport now contains a
982 References: header, in accordance with RFCs 2822 and 3834.
983
382afc6b
PH
984PH/47 Added authenticated_sender_force to the smtp transport.
985
a86229cf
PH
986PH/48 The ${prvs expansion was broken on systems where time_t was long long.
987
50c99ba6
PH
988PH/49 Installed latest patch from the Sieve maintainer.
989
d35e429d
PH
990PH/50 When an Exim quota was set without a file count quota, and mailbox_size
991 was also set, the appendfile transport was unnecessarily scanning a
992 directory of message files (e.g. for maildir delivery) to find the count
993 of files (along with the size), even though it did not need this
994 information. It now does the scan only if it needs to find either the
995 size of the count of files.
996
f90d018c
PH
997PH/51 Added ${time_eval: to convert Exim time strings into seconds.
998
75def545
PH
999PH/52 Two bugs concerned with error handling when the smtp transport is
1000 used in LMTP mode:
1001
1002 (i) Exim was not creating retry information for temporary errors given
1003 for individual recipients after the DATA command when the smtp transport
1004 was used in LMTP mode. This meant that they could be retried too
1005 frequently, and not timed out correctly.
1006
1007 (ii) Exim was setting the flag that allows error details to be returned
1008 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1009 recipients that were returned after the DATA command.
1010
1011PH/53 This is related to PH/52, but is more general: for any failing address,
1012 when detailed error information was permitted to be returned to the
1013 sender, but the error was temporary, then after the final timeout, only
1014 "retry timeout exceeded" was returned. Now it returns the full error as
1015 well as "retry timeout exceeded".
1016
c46782ef
PH
1017PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1018 do this, and (what is worse) MTAs that accept it.
1019
71fafd95
PH
1020PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1021 will now be deprecated.
1022
2c5db4fd
PH
1023PH/56 New os.c-cygwin from the Cygwin maintainer.
1024
9cf6b11a
JJ
1025JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1026 formats (previously only available in exim formats via -bpr, -bpru,
1027 and -bpra. Now also available in native and exiqgrep formats)
1028
1029JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1030 with very large, slow to parse queues
1031
1032JJ/08 exipick: added ! as generic prefix to negate any criteria format
1033
1034JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1035
898d150f
PH
1036PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1037 responses to authentication challenges, though it was showing the
1038 challenges; (ii) I've removed the CR characters from the debug output for
1039 SMTP output lines.
1040
46218253
PH
1041PH/58 Allow for the insertion of a newline as well as a space when a string
1042 is turned into more than one encoded-word during RFC 2047 encoding. The
1043 Sieve code now uses this.
1044
e97957bc
PH
1045PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1046 data_4xx, lost_connection, tls_required.
1047
81e509d7
PH
1048PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1049 message was being sent as an SMTP response.
1050
3d240ff7
PH
1051PH/61 Add -l and -k options to exicyclog.
1052
b37c4101
PH
1053PH/62 When verifying, if an address was redirected to one new address, so that
1054 verification continued, and the new address failed or deferred after
1055 having set something in $address_data, the value of $address_data was not
1056 passed back to the ACL. This was different to the case when no
1057 redirection occurred. The value is now passed back in both cases.
1058
79378e0f
PH
1059PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1060 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1061 use login_cap.h, so on its own it isn't the distinguishing feature. The
1062 new name refers directly to the setclassresources() function.
1063
e49c7bb4
PH
1064PH/65 Added configuration files for NetBSD3.
1065
d114ec46
PH
1066PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1067
f3d7df6c
PH
1068PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1069 is preferred over IPv4.
1070
715ab376
PH
1071PH/68 The bounce_return_message and bounce_return_body options were not being
1072 honoured for bounces generated during the reception of non-SMTP messages.
1073 In particular, this applied to messages rejected by the ACL. This bug has
1074 been fixed. However, if bounce_return_message is true and bounce_return_
1075 body is false, the headers that are returned for a non-SMTP message
1076 include only those that have been read before the error was detected.
1077 (In the case of an ACL rejection, they have all been read.)
1078
6b31b150
PH
1079PH/69 The HTML version of the specification is now built in a directory called
1080 spec_html instead of spec.html, because the latter looks like a path with
1081 a MIME-type, and this confuses some software.
1082
1083PH/70 Catch two compiler warnings in sieve.c.
1084
d515a917
PH
1085PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1086 function verify_get_ident() calls ip_connect() to connect a socket, but
1087 if the "connect()" function timed out, ip_connect() used to close the
1088 socket. However, verify_get_ident() also closes the socket later, and in
1089 between Exim writes to the log, which may get opened at this point. When
1090 the socket was closed in ip_connect(), the log could get the same file
1091 descriptor number as the socket. This naturally causes chaos. The fix is
1092 not to close the socket in ip_connect(); the socket should be closed by
1093 the function that creates it. There was only one place in the code where
1094 this was missing, in the iplookup router, which I don't think anybody now
1095 uses, but I've fixed it anyway.
1096
9b8fadde
PH
1097PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1098 well as to direct DNS lookups. Otherwise the handling of names in host
1099 lists is inconsistent and therefore confusing.
1100
214e2000 1101
5de37277
PH
1102Exim version 4.60
1103-----------------
1104
cc38ddbf
PH
1105PH/01 Two changes to the default runtime configuration:
1106
1107 (1) Move the checks for relay_from_hosts and authenticated clients from
1108 after to before the (commented out) DNS black list checks.
1109
1110 (2) Add control=submission to the relay_from_hosts and authenticated
1111 clients checks, on the grounds that messages accepted by these
1112 statements are most likely to be submissions.
5de37277 1113
72fdd6ae
PH
1114PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1115
1116 (1) Generate an error if the third argument for the ${prvs expansion is
1117 not a single digit.
1118
1119 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1120 string.
1121
1122 (3) Reset the variables that are obtained from the first argument of
1123 ${prvscheck and used in the second argument before leaving the code,
1124 because their memory is reclaimed, so using them afterwards may do
1125 silly things.
1126
1127 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1128 one (it's much easier than Tom thought :-).
1129
1130 (5) Because of (4), we can now allow for the use of $prvscheck_result
1131 inside the third argument.
cb9328de 1132
cb741023
PH
1133PH/03 For some reason, the default setting of PATH when running a command from
1134 a pipe transport was just "/usr/bin". I have changed it to
1135 "/bin:/usr/bin".
1136
f174f16e
PH
1137PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1138 anything to be listed in the output from -bV.
b2f5a032 1139
c25242d7
PH
1140PH/05 When a filter generated an autoreply, the entire To: header line was
1141 quoted in the delivery log line, like this:
1142
1143 => >A.N.Other <ano@some.domain> <original@ddress> ...
1144
1145 This has been changed so that it extracts the operative address. There
1146 may be more than one such address. If so, they are comma-separated, like
1147 this:
1148
1149 => >ano@some.domain,ona@other.domain <original@ddress> ...
1150
82c19f95
PH
1151PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1152 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1153 not being looked up in the rDNS to get a host name, Exim was showing the
1154 IP address twice in Received: lines, even though the IP addresses were
1155 identical. For example:
1156
1157 Received: from [1.2.3.4] (helo=[1.2.3.4])
1158
1159 However, if the real host name was known, it was omitting the HELO data
1160 if it matched the actual IP address. This has been tidied up so that it
1161 doesn't show the same IP address twice.
1162
d7ffbc12
PH
1163PH/07 When both +timestamp and +memory debugging was on, the value given by
1164 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1165 called by the debug printing, thereby overwriting the timestamp buffer.
1166 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1167
9f526266
PH
1168PH/08 When the original message was included in an autoreply transport, it
1169 always said "this is a copy of the message, including all the headers",
1170 even if body_only or headers_only was set. It now gives an appropriate
1171 message.
1172
87fcc8b9
PH
1173PH/09 Applied a patch from the Sieve maintainer which:
1174
1175 o fixes some comments
1176 o adds the (disabled) notify extension core
1177 o adds some debug output for the result of if/elsif tests
1178 o points to the current vacation draft in the documentation
1179 and documents the missing references header update
1180
1181 and most important:
1182
1183 o fixes a bug in processing the envelope test (when testing
1184 multiple envelope elements, the last element determinted the
1185 result)
1186
456682f5
PH
1187PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1188 Electronic Mail") by including:
1189
1190 Auto-submitted: auto-generated
1191
1192 in the messages that it generates (bounce messages and others, such as
1193 warnings). In the case of bounce messages for non-SMTP mesages, there was
1194 also a typo: it was using "Auto_submitted" (underscore instead of
1195 hyphen). Since every message generated by Exim is necessarily in response
1196 to another message, thes have all been changed to:
1197
1198 Auto-Submitted: auto-replied
1199
1200 in accordance with these statements in the RFC:
1201
1202 The auto-replied keyword:
1203
1204 - SHOULD be used on messages sent in direct response to another
1205 message by an automatic process,
1206
1207 - MUST NOT be used on manually-generated messages,
1208
1209 - MAY be used on Delivery Status Notifications (DSNs) and Message
1210 Disposition Notifications (MDNs),
1211
1212 - MUST NOT be used on messages generated by automatic or periodic
1213 processes, except for messages which are automatic responses to
1214 other messages.
1215
3e46c1aa
PH
1216PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1217 to the default Received: header definition.
456682f5 1218
49826d12
PH
1219PH/12 Added log selector acl_warn_skipped (default on).
1220
eba0c039
PH
1221PH/13 After a successful wildlsearch lookup, discard the values of numeric
1222 variables because (a) they are in the wrong storage pool and (b) even if
1223 they were copied, it wouldn't work properly because of the caching.
1224
a0d6ba8a
PH
1225PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1226 checking when decoding. Apparently there are clients that generate
1227 overlong encoded strings. Why am I not surprised?
1228
f0917727
PH
1229PH/15 If the first argument of "${if match_address" was not empty, but did not
1230 contain an "@" character, Exim crashed. Now it writes a panic log message
1231 and treats the condition as false.
1232
096fee00
PH
1233PH/16 In autoreply, treat an empty string for "once" the same as unset.
1234
024bd3c2
PH
1235PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1236 extension "envelope-auth". The code is finished and in agreement with
1237 other implementations, but there is no documentation so far and in fact,
1238 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1239 not changing the active code.
1240
1241 Print executed "if" and "elsif" statements when debugging is used. This
1242 helps a great deal to understand what a filter does.
1243
1244 Document more things not specified clearly in RFC3028. I had all this
1245 sorted out, when out of a sudden new issues came to my mind. Oops."
1246
df199fec
PH
1247PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1248 (Bugzilla #53).
1249
d27f1df3
PH
1250PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1251 canonical form (as documented). However, after a host name lookup from
1252 the IP address, check_host() was doing a simple string comparison with
1253 addresses acquired from the DNS when checking that the found name did
1254 have the original IP as one of its addresses. Since any found IPv6
1255 addresses are likely to be in abbreviated form, the comparison could
1256 fail. Luckily, there already exists a function for doing the comparison
1257 by converting both addresses to binary, so now that is used instead of
1258 the text comparison.
1259
96776534
PH
1260PH/20 There was another similar case to PH/19, when a complete host name was
1261 given in a host list; looking up its IP address could give an abbreviated
1262 form, whereas the current host's name might or might not be abbreviated.
1263 The same fix has been applied.
1264
5de37277 1265
9a799bc0
PH
1266Exim version 4.54
1267-----------------
1268
1269PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1270 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1271 It now does.
1272
99a4b039
PH
1273PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1274 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1275
1276PH/03 Typo: missing ".o" in src/pcre/Makefile.
1277
4b233853
PH
1278PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1279 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1280 Also, for "Auto-Submitted", treat anything other than "no" as
1281 non-personal, in accordance with RFC 3834. (Previously it treated
1282 anything starting "auto-" as non-personal.)
1283
8857ccfd
PH
1284TF/01 The control=submission/name=... option had a problem with syntax
1285 errors if the name included a slash character. The /name= option
1286 now slurps the rest of the string, so it can include any characters
1287 but it must come last in the list of options (after /sender_retain
1288 or /domain=).
1289
433a2980
PH
1290PH/05 Some modifications to the interface to the fake nameserver for the new
1291 testing suite.
1292
3e46c1aa 1293
9a799bc0 1294
e3a311ba
TK
1295Exim version 4.53
1296-----------------
1297
1298TK/01 Added the "success_on_redirect" address verification option. See
1299 NewStuff for rationale and an example.
1300
13b685f9
PH
1301PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1302
395ff96d
PH
1303PH/02 Patch to exigrep to allow it to work on syslog lines.
1304
5b68f6e4
PH
1305PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1306 fread() to skip over the body file's header line, because in Cygwin the
1307 header line is locked and is inaccessible.
1308
1ab52c69
PH
1309PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1310 co-exist for some time) to make it clear that it is the Exim ID that is
1311 referenced, not the Message-ID: header line.
1312
b07e6aa3
PH
1313PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1314 string_format() function, because snprintf() does not exist on all
1315 operating systems.
1316
254e032f
PH
1317PH/06 The use of forbid_filter_existstest now also locks out the use of the
1318 ${stat: expansion item.
1319
3af76a81
PH
1320PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1321 protocol synchronization error", to keep the pedants happy.
1322
2548ba04
PH
1323PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1324 well as for IRIX systems, when gcc is being used. See the host.c source
1325 file for comments.
1326
b6c6011d
PH
1327PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1328
cf39cf57
PH
1329PH/10 Named domain lists were not working if used in a queue_smtp_domains
1330 setting.
1331
f1513293
PH
1332PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1333 transport and to the smtp transport in LMTP mode.
1334
727549a4
PH
1335TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1336
af46795e
PH
1337PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1338 run a filter in a subprocess. This could lead to confusion in subsequent
1339 lookups in the parent process. There should also be a search_tidyup() at
1340 the end of the subprocess.
1341
d7b47fd0
PH
1342PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1343 only if the host matched helo_try_verify_hosts, which caused the
1344 verification to occur when the EHLO/HELO command was issued. The ACL just
1345 tested the remembered result. Now, if a previous verification attempt has
1346 not happened, "verify = helo" does it there and then.
1347
ee744174
JJ
1348JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1349
b582ab87
PH
1350TK/03 Fix log output including CR from clamd.
1351
41a13e0a
PH
1352PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1353 exist provoked a memory error which could cause a segfault.
1354
f625cc5a
PH
1355PH/15 Installed PCRE 6.2
1356
1357PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1358
21f7af35
PH
1359PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1360 of the problem. Specifically, suggested +O2 rather than +O1 for the
1361 HP-UX compiler.
1362
31480e42
PH
1363PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1364
2d280592
PH
1365PH/20 If a delivery was routed to a non-standard port by means of an SRV
1366 record, the port was not correctly logged when the outgoing_port log
1367 selector was set (it logged the transort's default port).
1368
7cd1141b
PH
1369PH/21 Added support for host-specific ports to manualroute, queryprogram,
1370 fallback_hosts, and "hosts" in the smtp transport.
1371
1372PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1373 host errors such as "Connection refused".
1374
750af86e
PH
1375PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1376 authentication with radiusclient 0.4.9:
1377
1378 - Error returned from rc_read_config was caught wrongly
1379 - Username/password not passed on to radius server due to wrong length.
1380
1381 The presumption is that some radiusclient API changes for 4.51/PH/17
1382 were not taken care of correctly. The code is still untested by me (my
1383 Linux distribution still has 0.3.2 of radiusclient), but it was
1384 contributed by a Radius user.
1385
1386PH/24 When doing a callout, the value of $domain wasn't set correctly when
1387 expanding the "port" option of the smtp transport.
1388
4304270b
TK
1389TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1390 while reading a MIME header. Thanks to Tom Hughes for a patch.
1391
750af86e
PH
1392PH/24 Include config.h inside local_scan.h so that configuration settings are
1393 available.
1394
64ffc24f
PH
1395PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1396 that in an ACL for RCPT (for example), you can examine exactly what was
1397 received.
1398
5dd9625b
PH
1399PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1400 commands, but it was not correctly comparing the address with the actual
1401 client host address. Thus, it would show the EHLO address in Received:
1402 header lines when this was not necessary.
1403
5591031b
PH
1404PH/27 Added the % operator to ${eval:}.
1405
ba18e66a
PH
1406PH/28 Exim tries to create and chdir to its spool directory when it starts;
1407 it should be ignoring failures (because with -C, for example, it has lost
1408 privilege). It wasn't ignoring creation failures other than "already
1409 exists".
1410
9cec981f
PH
1411PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1412 -bV or -d is used.
1413
aa2b5c79
PH
1414PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1415 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1416 too many continuations, the temporary file was not being removed, and the
1417 return code was incorrect.
aa2b5c79 1418
48a53b7f
PH
1419PH/31 Missing "BOOL" in function definition in filtertest.c.
1420
1c59d63b
PH
1421PH/32 Applied Sieve patches from the maintainer.
1422
671012da
TK
1423TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1424
1509d3a8
PH
1425PH/33 Added "verify = not_blind".
1426
1427PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1428 Local/Makefile (with some defaults set). These are used in built scripts
1429 such as exicyclog, but they have never been used in the exim_install
1430 script (though there are many overriding facilities there). I have
1431 arranged that the exim_install script now takes note of these two
1432 settings.
1433
1434PH/35 Installed configuration files for Dragonfly.
1435
2fe1a124
PH
1436PH/36 When a locally submitted message by a trusted user did not contain a
1437 From: header, and the sender address was obtained from -f or from an SMTP
1438 MAIL command, and the trusted user did not use -F to supply a sender
1439 name, $originator_name was incorrectly used when constructing a From:
1440 header. Furthermore, $originator_name was used for submission mode
1441 messages from external hosts without From: headers in a similar way,
1442 which is clearly wrong.
1443
8800895a
PH
1444PH/37 Added control=suppress_local_fixups.
1445
ccfdb010
PH
1446PH/38 When log_selector = +received_sender was set, and the addition of the
1447 sender made the log line's construction buffer exactly full, or one byte
1448 less than full, an overflow happened when the terminating "\n" was
1449 subsequently added.
1450
1130bfb0
PH
1451PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1452 when the result of a list match is failure because a DNS lookup failed.
1453
ebcb507f
PH
1454PH/40 RM_COMMAND is now used in the building process.
1455
c35e155c
PH
1456PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1457 the "build-* directories that it finds.
1458
95d1f782
PH
1459PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1460 address in a domain literal was a prefix of an interface address.
1461
fd6de02e
PH
1462PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1463 when verifying a sender address, unless rewrite_headers is false.
1464
58de37c5
PH
1465PH/44 Wrote a long comment about why errors_to addresses are verified as
1466 recipients, not senders.
1467
261cf466
TF
1468TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1469 the ratelimit ACL was added.
1470
3ee512ff
PH
1471PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1472
e08c430f
PH
1473PH/46 Added extra information about PostgreSQL errors to the error string.
1474
bef5a11f
PH
1475PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1476 avoiding the need to install special zones in a real server. This is
1477 backwards compatible; if it can't find the fake resolver, it drops back.
1478 Thus, both old and new test suites can be run.
1479
7546de58
TF
1480TF/02 Added util/ratelimit.pl
1481
e5d5a95f
TF
1482TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1483 clock is set back in time.
1484
2e88a017
TF
1485TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1486 Candler <B.Candler@pobox.com>.
1487
a5f65aa4
TF
1488TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1489 OK for addresses that are the result of redirections.
1490
e7726cbf
PH
1491PH/48 A number of further additions for the benefit of the new test suite,
1492 including a fake gethostbyname() that interfaces to the fake DNS resolver
1493 (see PH/47 above).
1494
a7fdad5b
TF
1495TF/06 The fix for widen_domains has also been applied to qualify_single and
1496 search_parents which are the other dnslookup options that can cause
1497 header rewrites.
1498
6af56900
PH
1499PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1500 type ("H").
1501
0925ede6
PH
1502PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1503
66afa403
TF
1504TF/07 Exim produced the error message "an SRV record indicated no SMTP
1505 service" if it encountered an MX record with an empty target hostname.
1506 The message is now "an MX or SRV record indicated no SMTP service".
1507
0154e85a
TF
1508TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1509 if the DNS of the sending site is misconfigured. This is quite a
1510 common situation. This change restores the behaviour of treating a
1511 helo verification defer as a failure.
1512
16f12c76
PH
1513PH/51 If self=fail was set on a router, the bounce message did not include the
1514 actual error message.
1515
bbe902f0 1516
e5a9dba6
PH
1517Exim version 4.52
1518-----------------
1519
1520TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1521
22c3b60b
PH
1522PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1523 command itself ended in error, the underlying message about the transport
1524 filter timeout was being overwritten with the pipe command error. Now the
1525 underlying error message should be appended to the second error message.
1526
06a9b4b5
PH
1527TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1528
c1ac6996
PH
1529PH/02 Reduce the amount of output that "make" produces by default. Full output
1530 can still be requested.
1531
9c7a242c
PH
1532PH/03 The warning log line about a condition test deferring for a "warn" verb
1533 was being output only once per connection, rather than after each
1534 occurrence (because it was using the same function as for successful
1535 "warn" verbs). This seems wrong, so I have changed it.
1536
87ba3f5f
PH
1537TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1538 it should not have, which might have caused a crash in the right
1539 circumstances, but probably never did.
1540
1541PH/04 Installed a modified version of Tony Finch's patch to make submission
1542 mode fix the return path as well as the Sender: header line, and to
1543 add a /name= option so that you can make the user's friendly name appear
1544 in the header line.
1545
29aba418
TF
1546TF/03 Added the control = fakedefer ACL modifier.
1547
fe0dab11
TF
1548TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1549 Mark Lowes for thorough testing.
870f6ba8 1550
11d337a4
TK
1551TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1552
1553TK/03 Merged latest SRS patch from Miles Wilton.
1554
415c8f3b
PH
1555PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1556 with the definition in sysexits.h (which is #included earlier).
1557 Fortunately, Exim does not actually use EX_OK. The code used to try to
1558 preserve the sysexits.h value, by assumimg that macro definitions were
1559 scanned for macro replacements. I have been disabused of this notion,
1560 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1561
958541e9
PH
1562PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1563 in the smtp transport. When a block could not be written in a single
1564 write() function, the timeout was being re-applied to each part-write.
1565 This seems wrong - if the receiver was accepting one byte at a time it
1566 would take for ever. The timeout is now adjusted when this happens. It
1567 doesn't have to be particularly precise.
1568
c206415f
TK
1569TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1570 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1571
2a4be8f9
PH
1572PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1573 without a domain if the check to <postmaster@domain> fails.
1574
1cba11c5
SC
1575SC/01 Eximstats: added -xls and the ability to specify output files
1576 (patch written by Frank Heydlauf).
1577
1578SC/02 Eximstats: use FileHandles for outputing results.
1579
1580SC/03 Eximstats: allow any combination of xls, txt, and html output.
1581
1582SC/04 Eximstats: fixed display of large numbers with -nvr option
1583
1584SC/05 Eximstats: fixed merging of reports with empty tables.
1585
1586SC/06 Eximstats: added the -include_original_destination flag
1587
1588SC/07 Eximstats: removed tabs and trailing whitespace.
1589
1005d00e
TK
1590TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1591
1592TK/06 MBOX spool code: Add real "From " MBOX separator line
1593 so the .eml file is really in mbox format (even though
1594 most programs do not really care). Patch from Alex Miller.
1595
1596TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1597 The latter is generated from $received_to and is only set if the
1598 message has one envelope recipient. SA can use these headers,
1599 obviously out-of-the-box. Patch from Alex Miller.
1600
9b4768fa
PH
1601PH/08 The ${def test on a variable was returning false if the variable's
1602 value was "0", contrary to what the specification has always said!
1603 The result should be true unless the variable is empty.
1604
1605PH/09 The syntax error of a character other than { following "${if
1606 def:variable_name" (after optional whitespace) was not being diagnosed.
1607 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1608 accidental colon was present, for example, could give incorrect results.
1609
0d7eb84a
PH
1610PH/10 Tidied the code in a number of places where the st_size field of a stat()
1611 result is used (not including appendfile, where other changes are about
1612 to be made).
1613
1614PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1615 This involved changing a lot of size variables from int to off_t. It
1616 should work with maildirs and everything.
1617
40727bee
TK
1618TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1619 spamd dying while we are connected to it.
1620
554d2369
TF
1621TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1622 <jgh@wizmail.org>
1623
1f922db1
PH
1624PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1625 function for BDB 4.3.
1626
ef213c3b
PH
1627PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1628
8ac170f3
PH
1629PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1630 the sources for PCRE have been re-arranged and more files are now
1631 involved.
1632
b1c749bb
PH
1633PH/15 The code I had for printing potentially long long variables in PH/11
1634 above was not the best (it lost precision). The length of off_t variables
1635 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1636 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1637 to be "long long int" or "long int". This is needed for the internal
1638 formatting function string_vformat().
b1c749bb 1639
4aac9b49
PH
1640PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1641 the configuration file to be ":syslog", then the script "guesses" where
1642 the logs files are, rather than using the compiled in default. In our
1643 case the guess is not the same as the compiled default, so the script
1644 suddenly stopped working when I started to use syslog. The patch checks
1645 to see if log_file_path is "". If so, it attempts to read it from exim
1646 with no configuration file to get the compiled in version, before it
1647 falls back to the previous guessing code."
1648
294520c8
TK
1649TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1650 implementing BATV in an Exim configuration. See NewStuff for the gory
1651 details.
1652
5bd022fe
PH
1653PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1654 Makefile that are specific to HP-UX.
1655
90e9ce59
PH
1656PH/18 If the "use_postmaster" option was set for a recipient callout together
1657 with the "random" option, the postmaster address was used as the MAIL
1658 FROM address for the random test, but not for the subsequent recipient
1659 test. It is now used for both.
1660
5ea81592
PH
1661PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1662 patch removes a few documentation additions to RFC 3028, because the
1663 latest draft now contains them. It adds the new en;ascii-case comparator
1664 and a new error check for 8bit text in MIME parts. Comparator and
1665 require names are now matched exactly. I enabled the subaddress
1666 extension, but it is not well tested yet (read: it works for me)."
1667
c6c2dc1d
PH
1668PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1669 rework some of the code of TK/09 above to avoid the hardwired use of
1670 "%lld" and "long long". Replaced the call to snprintf() with a call to
1671 string_vformat().
1672
fffffe4c
PH
1673PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1674 records point to non-existent hosts", "retry timeout exceeded", and
1675 "retry time not reached for any host after a long failure period".
ca02eafb 1676
9a26b6b2
PH
1677PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1678 experimental DomainKeys support:
1679
1680 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1681 (2) On an error such as an illegally used "control", the wrong name for
1682 the control was given.
1683
1684 These problems did NOT occur unless DomainKeys support was compiled.
1685
4aee0225
PH
1686PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1687
32d668a5
PH
1688PH/24 Added ${if match_ip condition.
1689
8187c3f3
PH
1690PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1691 databases so that it will be absolutely obvious if a crash occurs in the
1692 DB library. This is a regular occurrence (often caused by mis-matched
1693 db.h files).
1694
ff790e47 1695PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1696 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1697 picked up on a user's system that detects such things. There doesn't seem
1698 to be a gcc warning option for this - only an attribute that has to be
1699 put on the function's prototype. It seems that in Fedora Core 4 they have
1700 set this on a number of new functions. No doubt there will be more in due
1701 course.
ff790e47 1702
5417f6d1
PH
1703PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1704 specify a transport. However, if an address that was verified by such a
1705 router was the subject of a callout, Exim crashed because it tried to
1706 read the rcpt_include_affixes from the non-existent transport. Now it
1707 just assumes that the setting of that option is false. This bug was
1708 introduced by 4.51/PH/31.
1709
59cf8544
PH
1710PH/28 Changed -d+all to exclude +memory, because that information is very
1711 rarely of interest, but it makes the output a lot bigger. People tend to
1712 do -d+all out of habit.
1713
e7ad8a65
PH
1714PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1715 code in os-type was giving problems when libc.so lives in lib64, like on
1716 x86_64 Fedora Core.
1717
ade42478
PH
1718PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1719 aren't the modern standard, and it seems that some systems' include files
1720 don't always have them. Exim was already checking for some of the newer
1721 ones like T_AAAA, and defining it itself. I've added checks for all the
1722 record types that Exim uses.
1723
182ad5cf
PH
1724PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1725 not automatically generating a new one, as it is supposed to. This
1726 prevented TLS from working. If the file did exist, but contained invalid
1727 data, a new version was generated, as expected. It was only the case of a
1728 non-existent file that was broken.
1729
b0d9fc80
TK
1730TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1731 with a change in libdomainkeys > 0.64.
1732
1733TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1734 from DNS. If the selector record carries the flag, it now has
1735 precedence over the domain-wide flag.
1736
1737TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1738
47c7a64a
PH
1739PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1740 the use of a port name that isn't defined in /etc/services) occurred, the
1741 message was deferred as in a normal delivery, and thus remained on the
1742 spool, instead of being failed because of the mua_wrapper setting. This
1743 is now fixed, and I tidied up some of the mua_wrapper messages at the
1744 same time.
1745
a388bce4
SC
1746SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1747 the messages in a hash of arrays rather than using individual hashes.
1748 This is a bit cleaner and results in dramatic memory savings, albeit
1749 at a slight CPU cost.
1750
1751SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1752 as requested by Marc Sherman.
1753
1754SC/10 Eximstats: added histograms for user specified patterns as requested
1755 by Marc Sherman.
1756
0793e4ed
SC
1757SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1758
c58b88df
PH
1759PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1760 fopen() in the content-scanning modules that did not already have it.
1761
e7ad8a65 1762
7982096b
PH
1763Exim version 4.51
1764-----------------
1765
1a46a8c5
PH
1766TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1767 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1768
2f079f46 1769TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1770
1771TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1772
1773PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1774 to test Sieve filters that use "vacation".
1775
1776PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1777 that changes the way the GnuTLS parameters are stored in the cache file.
1778 The new format can be generated externally. For backward compatibility,
1779 if the data in the cache doesn't make sense, Exim assumes it has read an
1780 old-format file, and it generates new data and writes a new file. This
1781 means that you can't go back to an older release without removing the
1782 file.
1783
1784PH/03 A redirect router that has both "unseen" and "one_time" set does not
1785 work if there are any delivery delays because "one_time" forces the
1786 parent to be marked "delivered", so its unseen clone is never tried
1787 again. For this reason, Exim now forbids the simultaneous setting of
1788 these two options.
1789
1790PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1791 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1792 entry if you want to know the details. The fix, however, neglected to
1793 consider the case when local delivery batching is involved. The test for
1794 "previously delivered" was not happening when checking to see if an
1795 address could be batched with a previous (undelivered) one; under
1796 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1797 address.
1a46a8c5
PH
1798
1799PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1800 in its include files, and this causes problems building Exim.
1801
1802PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1803 header_syntax) but Exim was just ignoring anything given after a slash.
1804 In particular, this caused confusion with an attempt to use "verify =
1805 reverse_host_lookup/defer_ok". An error is now given when options are
1806 supplied for verify items that do not have them. (Maybe reverse_host_
1807 lookup should have a defer_ok option, but that's a different point.)
1808
1809PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1810 defined by RFC 821) to 2048, because there were problems with some AUTH
1811 commands, and RFC 1869 says the size should be increased for extended
1812 SMTP commands that take arguments.
1813
1814PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1815 Finch).
1816
1817PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1818 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1819
49c2d5ea
PH
1820PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1821 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1822 whatever). Otherwise the password may appear in the log. Following change
1823 PH/42 below, there is no longer a chance of it appearing in a bounce
1824 message.
49c2d5ea 1825
bf759a8b
PH
1826PH/11 Installed exipick version 20050225.0 from John Jetmore.
1827
83364d30
PH
1828PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1829 of its addresses was ever tried. (Bugzilla bug #2.)
1830
7999bbd7
PH
1831PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1832 the result incorrectly in the debug output. (It correctly added a newline
1833 to what was transported.)
1834
7dbf77c9
PH
1835TF/01 Added $received_time.
1836
74e0617f
PH
1837PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1838 commented out examples of how to interface to a virus scanner and to
1839 SpamAssassin. Also added commented examples of av_scanner and
1840 spamd_address settings.
1841
2f079f46
PH
1842PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1843 and controls are allowed in which ACLs. There were a couple of minor
1844 errors. Some of the entries in the conditions table (which is a table of
1845 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1846 negation of where the condition IS allowed.
1847
8c841523
PH
1848PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
1849
7766a4f0
PH
1850PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
1851 header file does not have a version number, so I've had to invent a new
1852 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
1853 API. The code is untested by me (my Linux distribution still has 0.3.2 of
1854 radiusclient), but it was contributed by a Radius user.
1855
8b417f2c
PH
1856PH/18 Installed Lars Mainka's patch for the support of CRL collections in
1857 files or directories, for OpenSSL.
1858
901f42cb
PH
1859PH/19 When an Exim process that is running as root has to create an Exim log
1860 file, it does so in a subprocess that runs as exim:exim so as to get the
1861 ownership right at creation (otherwise, other Exim processes might see
1862 the file with the wrong ownership). There was no test for failure of this
1863 fork() call, which would lead to the process getting stuck as it waited
1864 for a non-existent subprocess. Forks do occasionally fail when resources
1865 run out. I reviewed all the other calls to fork(); they all seem to check
1866 for failure.
1867
f9b9210e
PH
1868PH/20 When checking for unexpected SMTP input at connect time (before writing
1869 the banner), Exim was not dealing correctly with a non-positive return
1870 from the read() function. If the client had disconnected by this time,
1871 the result was a log entry for a synchronization error with an empty
1872 string after "input=" when read() returned zero. If read() returned -1
1873 (an event I could not check), uninitialized data bytes were printed.
1874 There were reports of junk text (parts of files, etc) appearing after
1875 "input=".
1876
54cdb463
PH
1877PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
1878
cf00dad6
PH
1879PH/22 Added support for macro redefinition, and (re)definition in between
1880 driver and ACL definitions.
1881
acb1b346
PH
1882PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
1883 forgetting to use the resulting value; it was using the unexpanded value.
1884
c5ddb310
PH
1885PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
1886 hadn't been configured. The fix is from Juergen Kreileder, who
1887 understands it better than I do:
1888
1889 "Here's what I see happening with three configured cyrus_sasl
1890 authenticators configured (plain, login, cram-md5):
1891
1892 On startup auth_cyrus_sasl_init() gets called for each of these.
1893 This means three calls to sasl_listmech() without a specified mech_list.
1894 => SASL tests which mechs of all available mechs actually work
1895 => three warnings about OTP not working
1896 => the returned list contains: plain, login, cram-md5, digest-md5, ...
1897
1898 With the patch, sasl_listmech() also gets called three times. But now
1899 SASL's mech_list option is set to the server_mech specified in the the
1900 authenticator. Or in other words, the answer from sasl_listmech()
1901 gets limited to just the mech you're testing for (which is different
1902 for each call.)
1903 => the return list contains just 'plain' or 'login', 'cram-md5' or
1904 nothing depending on the value of ob->server_mech.
1905
1906 I've just tested the patch: Authentication still works fine,
1907 unavailable mechs specified in the exim configuration are still
1908 caught, and the auth.log warnings about OTP are gone."
1909
31619da6
PH
1910PH/25 When debugging is enabled, the contents of the command line are added
1911 to the debugging output, even when log_selector=+arguments is not
1912 specified.
1913
bebaf0fc
PH
1914PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
1915 answer is "GNU", and only if the return is "GNU/something" is the answer
1916 "Linux".
1917
475fe28a
PH
1918PH/27 $acl_verify_message is now set immediately after the failure of a
1919 verification in an ACL, and so is available in subsequent modifiers. In
1920 particular, the message can be preserved by coding like this:
1921
1922 warn !verify = sender
1923 set acl_m0 = $acl_verify_message
1924
1925 Previously, $acl_verify_message was set only while expanding "message"
1926 and "log_message" when a very denied access.
1927
7e8bec7a
PH
1928PH/28 Modified OS/os.c-Linux with
1929
1930 -#ifndef OS_LOAD_AVERAGE
1931 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
1932
1933 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
1934 nomenclature these days.)
1935
e4a89c47
PH
1936PH/29 Installed patch from the Sieve maintainer that adds the options
1937 sieve_useraddress and sieve_subaddress to the redirect router.
1938
5ca2a9a1
PH
1939PH/30 In these circumstances:
1940 . Two addresses routed to the same list of hosts;
1941 . First host does not offer TLS;
1942 . First host accepts first address;
1943 . First host gives temporary error to second address;
1944 . Second host offers TLS and a TLS session is established;
1945 . Second host accepts second address.
1946 Exim incorrectly logged both deliveries with the TLS parameters (cipher
1947 and peerdn, if requested) that were in fact used only for the second
1948 address.
7e8bec7a 1949
c688b954
PH
1950PH/31 When doing a callout as part of verifying an address, Exim was not paying
1951 attention to any local part prefix or suffix that was matched by the
1952 router that accepted the address. It now behaves in the same way as it
1953 does for delivery: the affixes are removed from the local part unless
1954 rcpt_include_affixes is set on the transport.
1955
fed77020
PH
1956PH/32 Add the sender address, as F=<...>, to the log line when logging a
1957 timeout during the DATA phase of an incoming message.
1958
7fe1560f
PH
1959PH/33 Sieve envelope tests were broken for match types other than :is. I have
1960 applied a patch sanctioned by the Sieve maintainer.
c688b954 1961
ebb6e6d5
PH
1962PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
1963 the uid or gid is negative. A case of a negative gid caused this to be
1964 noticed. The fix allows for either to be negative.
1965
9c4e8f60
PH
1966PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
1967 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
1968 overlooked.
1969
1970PH/36 The change PH/12 above was broken. Fixed it.
1971
d7174846
PH
1972PH/37 Exim used to check for duplicate addresses in the middle of routing, on
1973 the grounds that routing the same address twice would always produce the
1974 same answer. This might have been true once, but it is certainly no
1975 longer true now. Routing a child address may depend on the previous
1976 routing that produced that child. Some complicated redirection strategies
1977 went wrong when messages had multiple recipients, and made Exim's
1978 behaviour dependent on the order in which the addresses were given.
1979
1980 I have moved the duplicate checking until after the routing is complete.
1981 Exim scans the addresses that are assigned to local and remote
1982 transports, and removes any duplicates. This means that more work will be
1983 done, as duplicates will always all be routed, but duplicates are
1984 presumably rare, so I don't expect this is of any significance.
1985
1986 For deliveries to pipes, files, and autoreplies, the duplicate checking
1987 still happens during the routing process, since they are not going to be
1988 routed further.
1989
cfe75fc3
PH
1990PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
1991 It corrects a timeout issue with spamd. This is Ian's comment: "The
1992 background is that sometimes spamd either never reads data from a
1993 connection it has accepted, or it never writes response data. The exiscan
1994 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
1995 blindly assumes that writes won't block so it may never time out."
1996
be22d70e
PH
1997PH/39 Allow G after quota size as well as K and M.
1998
0612b098
PH
1999PH/40 The value set for $authenticated_id in an authenticator may not contain
2000 binary zeroes or newlines because the value is written to log lines and
2001 to spool files. There was no check on this. Now the value is run through
2002 the string_printing() function so that such characters are converted to
2003 printable escape sequences.
2004
2e0c1448
PH
2005PH/41 $message_linecount is a new variable that contains the total number of
2006 lines in the message. Compare $body_linecount, which is the count for the
2007 body only.
2008
447d236c
PH
2009PH/42 Exim no longer gives details of delivery errors for specific addresses in
2010 bounce and delay warning messages, except in certain special cases, which
2011 are as follows:
2012
2013 (a) An SMTP error message from a remote host;
2014 (b) A message specified in a :fail: redirection;
2015 (c) A message specified in a "fail" command in a system filter;
2016 (d) A message specified in a FAIL return from the queryprogram router;
2017 (e) A message specified by the cannot_route_message router option.
2018
2019 In these cases only, Exim does include the error details in bounce and
2020 warning messages. There are also a few cases where bland messages such
2021 as "unrouteable address" or "local delivery error" are given.
2022
d20976dc
PH
2023PH/43 $value is now also set for the "else" part of a ${run expansion.
2024
f656d135
PH
2025PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2026 being worked on, but at least Exim now implements the latest version to
2027 play with."
2028
2e2a30b4
PH
2029PH/45 In a pipe transport, although a timeout while waiting for the pipe
2030 process to complete was treated as a delivery failure, a timeout while
2031 writing the message to the pipe was logged, but erroneously treated as a
2032 successful delivery. Such timeouts include transport filter timeouts. For
2033 consistency with the overall process timeout, these timeouts are now
2034 treated as errors, giving rise to delivery failures by default. However,
2035 there is now a new Boolean option for the pipe transport called
2036 timeout_defer, which, if set TRUE, converts the failures into defers for
2037 both kinds of timeout. A transport filter timeout is now identified in
2038 the log output.
2039
9176e9f0
PH
2040PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2041 systems where "make" and "gmake" are different, calling "gmake" at top
2042 level broke things. I've arranged for the value of $(MAKE) to be passed
2043 from the Makefile to this script so that it can call the same version of
2044 "make".
2045
7982096b 2046
bbe902f0
PH
2047A note about Exim versions 4.44 and 4.50
2048----------------------------------------
2049
2050Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2051changes of various kinds. As a consequence, a big documentation update was
2052needed. This delayed the release for rather longer than seemed good, especially
2053in the light of a couple of (minor) security issues. Therefore, the changes
2054that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2055release. So 4.44 and 4.50 are in effect two different branches that both start
2056from 4.43.
2057
2058I have left the 4.50 change log unchanged; it contains all the changes since
20594.43. The change log for 4.44 is below; many of its items are identical to
2060those for 4.50. This seems to be the most sensible way to preserve the
2061historical information.
2062
2063
f7b63901 2064Exim version 4.50
495ae4b0
PH
2065-----------------
2066
5fe762f6
PH
2067 1. Minor wording change to the doc/README.SIEVE file.
2068
139059f6 2069 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2070 computation of the current number of files was incorrect.
495ae4b0 2071
7086e875
PH
2072 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2073 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2074 place.
2075
35af9f61
PH
2076 4. Give more explanation in the error message when the command for a transport
2077 filter fails to execute.
2078
b668c215
PH
2079 5. There are several places where Exim runs a non-Exim command in a
2080 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2081 was being done only for the command run by the queryprogram router. It is
2082 now done for all such subprocesses. The other cases are: ${run, transport
2083 filters, and the commands run by the lmtp and pipe transports.
2084
a494b1e1
PH
2085 6. Added CONFIGURE_GROUP build-time option.
2086
2087 7. Some older OS have a limit of 256 on the maximum number of file
2088 descriptors. Exim was using setrlimit() to set 1000 as a large value
2089 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2090 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2091
c5fcb476
PH
2092 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2093 was an oversight, and furthermore, ever since the addition of extra
2094 controls (e.g. 4.43/32), the checks on when to allow different forms of
2095 "control" were broken. There should now be diagnostics for all cases when a
2096 control that does not make sense is encountered.
2097
69358f02
PH
2098 9. Added the /retain_sender option to "control=submission".
2099
5be20824
PH
210010. $recipients is now available in the predata ACL (oversight).
2101
eb2c0248
PH
210211. Tidy the search cache before the fork to do a delivery from a message
2103 received from the command line. Otherwise the child will trigger a lookup
2104 failure and thereby defer the delivery if it tries to use (for example) a
2105 cached ldap connection that the parent has called unbind on.
2106
2a3eea10
PH
210712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2108 of $address_data from the recipient verification was clobbered by the
2109 sender verification.
2110
211113. The value of address_data from a sender verification is now available in
2112 $sender_address_data in subsequent conditions in the ACL statement.
2113
23c7ff99
PH
211414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2115
4deaf07d
PH
211615. Added a new option "connect=<time>" to callout options, to set a different
2117 connection timeout.
2118
926e1192
PH
211916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2120 was its contents. (It was OK if the option was not defined at all.)
2121
650edc6f
PH
212217. A "Completed" log line is now written for messages that are removed from
2123 the spool by the -Mrm option.
2124
2c7db3f5
PH
212518. New variables $sender_verify_failure and $recipient_verify_failure contain
2126 information about exactly what failed.
2127
3d235903
PH
212819. Added -dd to debug only the daemon process.
2129
7c7ad977
PH
213020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2131 handles timeouts, both on the server side and network timeouts. Renamed the
2132 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2133
981756db
PH
213421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2135 It is now set to "smtps".
2136
d4eb88df
PH
213722. $host_address is now set to the target address during the checking of
2138 ignore_target_hosts.
2139
214023. When checking ignore_target_hosts for an ipliteral router, no host name was
2141 being passed; this would have caused $sender_host_name to have been used if
2142 matching the list had actually called for a host name (not very likely,
2143 since this list is usually IP addresses). A host name is now passed as
2144 "[x.x.x.x]".
2145
7d468ab8
PH
214624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2147 code that specifies a non-restarting handler (typically sigaction() in
2148 modern systems) in an attempt to fix a rare and obscure crash bug.
2149
215025. Narrowed the window for a race in the daemon that could cause it to ignore
2151 SIGCHLD signals. This is not a major problem, because they are used only to
2152 wake it up if nothing else does.
2153
62c0818f
PH
215426. A malformed maildirsize file could cause Exim to calculate negative values
2155 for the mailbox size or file count. Odd effects could occur as a result.
2156 The maildirsize information is now recalculated if the size or filecount
2157 end up negative.
2158
26034054
PH
215927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2160 support for a long time. Removed HAVE_SYS_VFS_H.
2161
af66f652
PH
216228. Installed the latest version of exipick from John Jetmore.
2163
90af77f4
PH
216429. In an address list, if the pattern was not a regular expression, an empty
2165 subject address (from a bounce message) matched only if the pattern was an
2166 empty string. Non-empty patterns were not even tested. This was the wrong
2167 because it is perfectly reasonable to use an empty address as part of a
2168 database query. An empty address is now tested by patterns that are
2169 lookups. However, all the other forms of pattern expect the subject to
2170 contain a local part and a domain, and therefore, for them, an empty
2171 address still always fails if the pattern is not itself empty.
2172
d8ef3577
PH
217330. Exim went into a mad DNS loop when attempting to do a callout where the
2174 host was specified on an smtp transport, and looking it up yielded more
2175 than one IP address.
2176
5cb8cbc6
PH
217731. Re-factored the code for checking spool and log partition space into a
2178 function that finds that data and another that does the check. The former
2179 is then used to implement four new variables: $spool_space, $log_space,
2180 $spool_inodes, and $log_inodes.
2181
14702f5b
PH
218232. The RFC2047 encoding function was originally intended for short strings
2183 such as real names; it was not keeping to the 75-character limit for
2184 encoded words that the RFC imposes. It now respects the limit, and
2185 generates multiple encoded words if necessary. To be on the safe side, I
2186 have increased the buffer size for the ${rfc2047: expansion operator from
2187 1024 to 2048 bytes.
2188
063b1e99
PH
218933. It is now permitted to omit both strings after an "if" condition; if the
2190 condition is true, the result is "true". As before, when the second string
2191 is omitted, a false condition yields an empty string. This makes it less
2192 cumbersome to write custom ACL and router conditions.
2193
652e1b65
PH
219434. Failure to deliver a bounce message always caused it to be frozen, even if
2195 there was an errors_to setting on the router. The errors_to setting is now
2196 respected.
2197
6f0c9a4f
PH
219835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2199 canonical form (fully expanded) before being placed in
2200 $sender_host_address.
2201
33397d19
PH
220236. The table in the code that translates DNS record types into text (T_A to
2203 "A" for instance) was missing entries for NS and CNAME. It is just possible
2204 that this could have caused confusion if both these types were looked up
2205 for the same domain, because the text type is used as part of Exim's
2206 per-process caching. But the chance of anyone hitting this buglet seems
2207 very small.
2208
7bb56e1f
PH
220937. The dnsdb lookup has been extended in a number of ways.
2210
2211 (1) There is a new type, "zns", which walks up the domain tree until it
2212 finds some nameserver records. It should be used with care.
2213
ea3bc19b
PH
2214 (2) There is a new type, "mxh", which is like "mx" except that it returns
2215 just the host names, not the priorities.
2216
2217 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2218 looked up. The behaviour when one of the lookups defers can be
2219 controlled by a keyword.
7bb56e1f 2220
ea3bc19b 2221 (4) It is now possible to specify the separator character for use when
7bb56e1f 2222 multiple records are returned.
33397d19 2223
0bcb2a0e
PH
222438. The dnslists ACL condition has been extended: it is now possible to supply
2225 a list of IP addresses and/or domains to be looked up in a particular DNS
2226 domain.
2227
2ac0e484
PH
222839. Added log_selector=+queue_time_overall.
2229
4e1fde53
PH
223040. When running the queue in the test harness, wait just a tad after forking a
2231 delivery process, to get repeatability of debugging output.
2232
de365ded
PH
223341. Include certificate and key file names in error message when GnuTLS fails
2234 to set them up, because the GnuTLS error message doesn't include the name
2235 of the failing file when there is a problem reading it.
2236
f05da2e8
PH
223742. Allow both -bf and -bF in the same test run.
2238
d6453af2
PH
223943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2240
f7b63901
PH
224144. The "Exiscan patch" is now merged into the mainline Exim source.
2242
224345. Sometimes the final signoff response after QUIT could fail to get
2244 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2245 < 0 before doing a fflush(). This bug looks as though it goes back to the
2246 introduction of TLS in release 3.20, but "sometimes" must have been rare
2247 because the tests only now provoked it.
2248
a444213a
PH
224946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2250 (this can affect the format of dates).
2251
0ec020ea
PH
225247. exim_tidydb, when checking for the continued existence of a message for
2253 which it has found a message-specific retry record, was not finding
2254 messages that were in split spool directories. Consequently, it was
2255 deleting retry records that should have stayed in existence.
2256
b1206957
PH
225748. Steve fixed some bugs in eximstats.
2258
225949. The SPA authentication driver was not abandoning authentication and moving
2260 on to the next authenticator when an expansion was forced to fail,
2261 contradicting the general specification for all authenticators. Instead it
2262 was generating a temporary error. It now behaves as specified.
2263
26dd5a95
PH
226450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2265 (the order specifies the preference for clients). The order is now AES256,
2266 AES128, 3DES, ARCFOUR128.
2267
343b2385
PH
226851. Small patch to Sieve code - explicitly set From: when generating an
2269 autoreply.
2270
1c5466b9
PH
227152. Exim crashed if a remote delivery caused a very long error message to be
2272 recorded - for instance if somebody sent an entire SpamAssassin report back
2273 as a large number of 550 error lines. This bug was coincidentally fixed by
2274 increasing the size of one of Exim's internal buffers (big_buffer) that
2275 happened as part of the Exiscan merge. However, to be on the safe side, I
2276 have made the code more robust (and fixed the comments that describe what
2277 is going on).
2278
55ee9ee3
PH
227953. Now that there can be additional text after "Completed" in log lines (if
2280 the queue_time_overall log selector is set), a one-byte patch to exigrep
2281 was needed to allow it to recognize "Completed" as not the last thing in
2282 the line.
2283
d38f8232
PH
228454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2285 patch that reportedly fixes this has been added. I am not expert enough to
2286 create a test for it. This is what the patch creator wrote:
2287
2288 "I found a little strange behaviour of ldap code when working with
2289 Windows 2003 AD Domain, where users was placed in more than one
2290 Organization Units. When I tried to give exim partial DN, the exit code
2291 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2292 But simultaneously result of request was absolutely normal ldap result,
2293 so I produce this patch..."
2294
3295e65b
PH
2295 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2296 REFERENCE, so I have modified the code to exclude the patch when that macro
2297 is not defined.
2298
7102e136
PH
229955. Some experimental protocols are using DNS PTR records for new purposes. The
2300 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2301 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2302 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2303 CAN-2005-0021
7102e136 2304
3ca0ba97
PH
230556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2306
c2bcbe20
PH
230757. Double the size of the debug message buffer (to 2048) so that more of very
2308 long debug lines gets shown.
2309
18ce445d
PH
231058. The exicyclog utility now does better if the number of log files to keep
2311 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2312
1f5b4c3d
PH
231359. Two changes related to the smtp_active_hostname option:
2314
2315 (1) $smtp_active_hostname is now available as a variable.
2316 (2) The default for smtp_banner uses $smtp_active_hostname instead
2317 of $primary_hostname.
2318
b975ba52
PH
231960. The host_aton() function is supposed to be passed a string that is known
2320 to be a valid IP address. However, in the case of IPv6 addresses, it was
2321 not checking this. This is a hostage to fortune. Exim now panics and dies
2322 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2323 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2324 components; fortuitously, this particular loophole had already been fixed
2325 by change 4.50/55 above.
2326
2327 If there are any other similar loopholes, the new check in host_aton()
2328 itself should stop them being exploited. The report I received stated that
2329 data on the command line could provoke the exploit when Exim was running as
2330 exim, but did not say which command line option was involved. All I could
2331 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2332 running as the user.
ea3a6f44 2333 CAN-2005-0021
85b87bc2
PH
2334
233561. There was a buffer overflow vulnerability in the SPA authentication code
2336 (which came originally from the Samba project). I have added a test to the
2337 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2338 CAN-2005-0022
b975ba52 2339
17ffcae7
PH
234062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2341 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2342
d95f9fdb
PH
234363. The daemon start-up calls getloadavg() while still root for those OS that
2344 need the first call to be done as root, but it missed one case: when
2345 deliver_queue_load_max is set with deliver_drop_privilege. This is
2346 necessary for the benefit of the queue runner, because there is no re-exec
2347 when deliver_drop_privilege is set.
2348
86b8287f
PH
234964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2350 This has been fixed.
2351
60dc5e56
PH
235265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2353 was in use, was not putting the data itself into the right store pool;
2354 consequently, it could be overwritten for a subsequent message in the same
2355 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2356 the caching.)
2357
533244af
PH
235866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2359
a5a28604
PH
236067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2361 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2362 the function were treating the return as a boolean value, which happened to
2363 work because 0=false and not-0=true, but is not correct code.
2364
7e634d24
PH
236568. The host_aton() function was not handling scoped IPv6 addresses (those
2366 with, for example, "%eth0" on the end) correctly.
2367
3e11c26b
PH
236869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2369 negated items (that is, ~something) in unsigned ints. Some compilers
2370 apparently mutter when there is no cast.
2371
6729cf78
PH
237270. If an address verification called from an ACL failed, and did not produce a
2373 user-specific message (i.e. there was only a "system" message), nothing was
2374 put in $acl_verify_message. In this situation, it now puts the system
2375 message there.
2376
00f00ca5
PH
237771. Change 4.23/11 added synchronization checking at the start of an SMTP
2378 session; change 4.31/43 added the unwanted input to the log line - except
2379 that it did not do this in the start of session case. It now does.
2380
c9bdd01c
PH
238172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2382 This is wrong and can cause the other end to generate a synchronization
2383 error if it is another Exim or anything else that does the synchronization
2384 check. A QUIT command is no longer sent after a timeout.
2385
d43194df
PH
238673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2387 during host lookups.
2388
fe5b5d0b
PH
238974. The defer_ok option of callout verification was not working if it was used
2390 when verifying addresses in header lines, that is, for this case:
2391
2392 verify = header_sender/callout=defer_ok
2393
76a2d7ba
PH
239475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2395 those file descriptors could be used for SMTP connections. If anything
2396 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2397 could be sent to the SMTP client, causing chaos. The daemon now opens
2398 stdin, stdout, and stderr to /dev/null when it puts itself into the
2399 background.
2400
240176. Arrange for output from Perl's "warn" command to be written to Exim's main
2402 log by default. The user can override this with suitable Perl magic.
2403
04f7d5b9
PH
240477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2405 the log message when discard triggers, was not working for the DATA ACL or
2406 for the non-SMTP ACL.
2407
bc60667e
PH
240878. Error message wording change in sieve.c.
2409
bb6e88ff
PH
241079. If smtp_accept_max_per_host was set, the number of connections could be
2411 restricted to fewer than expected, because the daemon was trying to set up
2412 a new connection before checking whether the processes handling previous
2413 connections had finished. The check for completed processes is now done
2414 earlier. On busy systems, this bug wouldn't be noticed because something
2415 else would have woken the daemon, and it would have reaped the completed
2416 process earlier.
2417
1e70f85b
PH
241880. If a message was submitted locally by a user whose login name contained one
2419 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2420 It caused a spool format error. I have fixed the spool reading code. A
2421 related problem was that the "from" clause in the Received: line became
2422 illegal because of the space(s). It is now covered by ${quote_local_part.
2423
242481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2425 tables).
2426
4e01f9d6
PH
242782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2428
1ee1cef2
PH
242983. Patch from Sieve maintainer to fix unterminated string problem in
2430 "vacation" handling.
2431
6e2b4ccc
PH
243284. Some minor changes to the Linux configuration files to help with other
2433 OS variants using glibc.
2434
8e669ac1
PH
243585. One more patch for Sieve to update vacation handling to latest spec.
2436
495ae4b0 2437
bbe902f0
PH
2438----------------------------------------------------
2439See the note above about the 4.44 and 4.50 releases.
2440----------------------------------------------------
2441
2442
2443Exim version 4.44
2444-----------------
2445
2446 1. Change 4.43/35 introduced a bug that caused file counts to be
2447 incorrectly computed when quota_filecount was set in an appendfile
2448 transport
2449
2450 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2451 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2452 place.
2453
2454 3. Give more explanation in the error message when the command for a transport
2455 filter fails to execute.
2456
2457 4. There are several places where Exim runs a non-Exim command in a
2458 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2459 was being done only for the command run by the queryprogram router. It is
2460 now done for all such subprocesses. The other cases are: ${run, transport
2461 filters, and the commands run by the lmtp and pipe transports.
2462
2463 5. Some older OS have a limit of 256 on the maximum number of file
2464 descriptors. Exim was using setrlimit() to set 1000 as a large value
2465 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2466 systems. I've change it so that if it can't get 1000, it tries for 256.
2467
2468 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2469 was an oversight, and furthermore, ever since the addition of extra
2470 controls (e.g. 4.43/32), the checks on when to allow different forms of
2471 "control" were broken. There should now be diagnostics for all cases when a
2472 control that does not make sense is encountered.
2473
2474 7. $recipients is now available in the predata ACL (oversight).
2475
2476 8. Tidy the search cache before the fork to do a delivery from a message
2477 received from the command line. Otherwise the child will trigger a lookup
2478 failure and thereby defer the delivery if it tries to use (for example) a
2479 cached ldap connection that the parent has called unbind on.
2480
2481 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2482 of $address_data from the recipient verification was clobbered by the
2483 sender verification.
2484
248510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2486 was its contents. (It was OK if the option was not defined at all.)
2487
248811. A "Completed" log line is now written for messages that are removed from
2489 the spool by the -Mrm option.
2490
249112. $host_address is now set to the target address during the checking of
2492 ignore_target_hosts.
2493
249413. When checking ignore_target_hosts for an ipliteral router, no host name was
2495 being passed; this would have caused $sender_host_name to have been used if
2496 matching the list had actually called for a host name (not very likely,
2497 since this list is usually IP addresses). A host name is now passed as
2498 "[x.x.x.x]".
2499
250014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2501 code that specifies a non-restarting handler (typically sigaction() in
2502 modern systems) in an attempt to fix a rare and obscure crash bug.
2503
250415. Narrowed the window for a race in the daemon that could cause it to ignore
2505 SIGCHLD signals. This is not a major problem, because they are used only to
2506 wake it up if nothing else does.
2507
250816. A malformed maildirsize file could cause Exim to calculate negative values
2509 for the mailbox size or file count. Odd effects could occur as a result.
2510 The maildirsize information is now recalculated if the size or filecount
2511 end up negative.
2512
251317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2514 support for a long time. Removed HAVE_SYS_VFS_H.
2515
ea3a6f44 251618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2517
251819. Allow an empty sender to be matched against a lookup in an address list.
2519 Previously the only cases considered were a regular expression, or an
2520 empty pattern.
2521
252220. Exim went into a mad DNS lookup loop when doing a callout where the
2523 host was specified on the transport, if the DNS lookup yielded more than
2524 one IP address.
2525
ea3a6f44
NM
252621. The RFC2047 encoding function was originally intended for short strings
2527 such as real names; it was not keeping to the 75-character limit for
2528 encoded words that the RFC imposes. It now respects the limit, and
2529 generates multiple encoded words if necessary. To be on the safe side, I
2530 have increased the buffer size for the ${rfc2047: expansion operator from
2531 1024 to 2048 bytes.
bbe902f0 2532
ea3a6f44
NM
253322. Failure to deliver a bounce message always caused it to be frozen, even if
2534 there was an errors_to setting on the router. The errors_to setting is now
2535 respected.
bbe902f0
PH
2536
253723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2538 canonical form (fully expanded) before being placed in
2539 $sender_host_address.
2540
254124. Updated eximstats to version 1.33
2542
ea3a6f44
NM
254325. Include certificate and key file names in error message when GnuTLS fails
2544 to set them up, because the GnuTLS error message doesn't include the name
2545 of the failing file when there is a problem reading it.
bbe902f0
PH
2546
254726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2548 As per change 25.
bbe902f0 2549
ea3a6f44
NM
255027. Reset the locale to "C" after calling embedded Perl, in case it was changed
2551 (this can affect the format of dates).
bbe902f0 2552
ea3a6f44
NM
255328. exim_tidydb, when checking for the continued existence of a message for
2554 which it has found a message-specific retry record, was not finding
2555 messages that were in split spool directories. Consequently, it was
2556 deleting retry records that should have stayed in existence.
bbe902f0
PH
2557
255829. eximstats updated to version 1.35
2559 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2560 1.35 - bugfix such that pie charts by volume are generated correctly
2561
ea3a6f44
NM
256230. The SPA authentication driver was not abandoning authentication and moving
2563 on to the next authenticator when an expansion was forced to fail,
2564 contradicting the general specification for all authenticators. Instead it
2565 was generating a temporary error. It now behaves as specified.
bbe902f0 2566
ea3a6f44
NM
256731. The default ordering of permitted cipher suites for GnuTLS was pessimal
2568 (the order specifies the preference for clients). The order is now AES256,
2569 AES128, 3DES, ARCFOUR128.
bbe902f0 2570
ea3a6f44
NM
257131. Small patch to Sieve code - explicitly set From: when generating an
2572 autoreply.
bbe902f0 2573
ea3a6f44
NM
257432. Exim crashed if a remote delivery caused a very long error message to be
2575 recorded - for instance if somebody sent an entire SpamAssassin report back
2576 as a large number of 550 error lines. This bug was coincidentally fixed by
2577 increasing the size of one of Exim's internal buffers (big_buffer) that
2578 happened as part of the Exiscan merge. However, to be on the safe side, I
2579 have made the code more robust (and fixed the comments that describe what
2580 is going on).
bbe902f0 2581
ea3a6f44
NM
258233. Some experimental protocols are using DNS PTR records for new purposes. The
2583 keys for these records are domain names, not reversed IP addresses. The
2584 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2585 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2586 CAN-2005-0021
2587
ea3a6f44
NM
258834. The host_aton() function is supposed to be passed a string that is known
2589 to be a valid IP address. However, in the case of IPv6 addresses, it was
2590 not checking this. This is a hostage to fortune. Exim now panics and dies
2591 if the condition is not met. A case was found where this could be provoked
2592 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2593 components; fortuitously, this particular loophole had already been fixed
2594 by change 4.50/55 or 4.44/33 above.
2595
2596 If there are any other similar loopholes, the new check in host_aton()
2597 itself should stop them being exploited. The report I received stated that
2598 data on the command line could provoke the exploit when Exim was running as
2599 exim, but did not say which command line option was involved. All I could
2600 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2601 running as the user.
bbe902f0
PH
2602 CAN-2005-0021
2603
ea3a6f44
NM
260435. There was a buffer overflow vulnerability in the SPA authentication code
2605 (which came originally from the Samba project). I have added a test to the
2606 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2607 CAN-2005-0022
2608
ea3a6f44
NM
260936. The daemon start-up calls getloadavg() while still root for those OS that
2610 need the first call to be done as root, but it missed one case: when
2611 deliver_queue_load_max is set with deliver_drop_privilege. This is
2612 necessary for the benefit of the queue runner, because there is no re-exec
2613 when deliver_drop_privilege is set.
bbe902f0 2614
ea3a6f44
NM
261537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2616 was in use, was not putting the data itself into the right store pool;
2617 consequently, it could be overwritten for a subsequent message in the same
2618 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2619 the caching.)
bbe902f0 2620
ea3a6f44
NM
262138. Sometimes the final signoff response after QUIT could fail to get
2622 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2623 < 0 before doing a fflush(). This bug looks as though it goes back to the
2624 introduction of TLS in release 3.20, but "sometimes" must have been rare
2625 because the tests only now provoked it.
bbe902f0
PH
2626
2627
495ae4b0
PH
2628Exim version 4.43
2629-----------------
2630
2631 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2632 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2633 Now it returns an integer. A number of calls were still expecting a T/F
2634 return. Fortuitously, in all cases, the tests worked in OK situations,
2635 which is the norm. However, things would have gone wrong on any write
2636 failures on the smtp file descriptor. This function is used when sending
2637 messages over SMTP and also when doing verify callouts.
2638
2639 2. When Exim is called to do synchronous delivery of a locally submitted
2640 message (the -odf or -odi options), it no longer closes stderr before doing
2641 the delivery.
2642
2643 3. Implemented the mua_wrapper option.
2644
2645 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2646
2647 5. Implemented the functions header_remove(), header_testname(),
2648 header_add_at_position(), and receive_remove_recipient(), and exported them
2649 to local_scan().
2650
2651 6. If an ACL "warn" statement specified the addition of headers, Exim already
2652 inserted X-ACL-Warn: at the start if there was no header name. However, it
2653 was not making this test for the second and subsequent header lines if
2654 there were newlines in the string. This meant that an invalid header could
2655 be inserted if Exim was badly configured.
2656
2657 7. Allow an ACL "warn" statement to add header lines at the start or after all
2658 the Received: headers, as well as at the end.
2659
2660 8. Added the rcpt_4xx retry error code.
2661
2662 9. Added postmaster_mailfrom=xxx to callout verification option.
2663
266410. Added mailfrom=xxxx to the callout verification option, for verify=
2665 header_sender only.
2666
266711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2668 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2669
267012. Inserted some casts to stop certain compilers warning when using pointer
2671 differences as field lengths or precisions in printf-type calls (mostly
2672 affecting debugging statements).
2673
267413. Added optional readline() support for -be (dynamically loaded).
2675
267614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2677 same clock tick as a message's arrival, so that its received time was the
2678 same as the "first fail" time on the retry record, and that message
2679 remained on the queue past the ultimate address timeout, every queue runner
2680 would try a delivery (because it was past the ultimate address timeout) but
2681 after another failure, the ultimate address timeout, which should have then
2682 bounced the address, did not kick in. This was a "< instead of <=" error;
2683 in most cases the first failure would have been in the next clock tick
2684 after the received time, and all would be well.
2685
268615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2687 being recognized when the domain list was tested by the match_domain
2688 condition in an expansion string.
2689
269016. Added the ${str2b64: operator.
2691
269217. Exim was always calling setrlimit() to set a large limit for the number of
2693 processes, without checking whether the existing limit was already
2694 adequate. (It did check for the limit on file descriptors.) Furthermore,
2695 errors from getrlimit() and setrlimit() were being ignored. Now they are
2696 logged to the main and panic logs, but Exim does carry on, to try to do its
2697 job under whatever limits there are.
2698
269918. Imported PCRE 5.0.
2700
270119. Trivial typo in log message " temporarily refused connection" (the leading
2702 space).
2703
270420. If the log selector return_path_on_delivery was set and an address was
2705 redirected to /dev/null, the delivery process crashed because it assumed
2706 that a return path would always be set for a "successful" delivery. In this
2707 case, the whole delivery is bypassed as an optimization, and therefore no
2708 return path is set.
2709
271021. Internal re-arrangement: the function for sending a challenge and reading
2711 a response while authentication was assuming a zero-terminated challenge
2712 string. It's now changed to take a pointer and a length, to allow for
2713 binary data in such strings.
2714
271522. Added the cyrus_sasl authenticator (code supplied by MBM).
2716
271723. Exim was not respecting finduser_retries when seeking the login of the
2718 uid under which it was called; it was always trying 10 times. (The default
2719 setting of finduser_retries is zero.) Also, it was sleeping after the final
2720 failure, which is pointless.
2721
272224. Implemented tls_on_connect_ports.
2723
272425. Implemented acl_smtp_predata.
2725
272626. If the domain in control=submission is set empty, Exim assumes that the
2727 authenticated id is a complete email address when it generates From: or
2728 Sender: header lines.
2729
273027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2731 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2732 chown and chgrp in /bin and hostname in /usr/bin.
2733
273428. Exim was keeping the "process log" file open after each use, just as it
2735 does for the main log. This opens the possibility of it remaining open for
2736 long periods when the USR1 signal hits a daemon. Occasional processlog
2737 errors were reported, that could have been caused by this. Anyway, it seems
2738 much more sensible not to leave this file open at all, so that is what now
2739 happens.
2740
274129. The long-running daemon process does not normally write to the log once it
2742 has entered its main loop, and it closes the log before doing so. This is
2743 so that log files can straightforwardly be renamed and moved. However,
2744 there are a couple of unusual error situations where the daemon does write
2745 log entries, and I had neglected to close the log afterwards.
2746
274730. The text of an SMTP error response that was received during a remote
2748 delivery was being truncated at 512 bytes. This is too short for some of
2749 the long messages that one sometimes sees. I've increased the limit to
2750 1024.
2751
275231. It is now possible to make retry rules that apply only when a message has a
2753 specific sender, in particular, an empty sender.
2754
275532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2756 it possible to be selective about when SMTP synchronization is enforced.
2757
275833. Added "control = caseful_local_part" and "control = "caselower_local_part".
2759
276032. Implemented hosts_connection_nolog.
2761
276233. Added an ACL for QUIT.
2763
276434. Setting "delay_warning=" to disable warnings was not working; it gave a
2765 syntax error.
2766
276735. Added mailbox_size and mailbox_filecount to appendfile.
2768
276936. Added control = no_multiline_responses to ACLs.
2770
277137. There was a bug in the logic of the code that waits for the clock to tick
2772 in the case where the clock went backwards by a substantial amount such
2773 that the microsecond fraction of "now" was more than the microsecond
2774 fraction of "then" (but the whole seconds number was less).
2775
277638. Added support for the libradius Radius client library this is found on
2777 FreeBSD (previously only the radiusclient library was supported).
2778
2779
2780Exim version 4.42
2781-----------------
2782
2783 1. When certain lookups returned multiple values in the form name=value, the
2784 quoting of the values was not always being done properly. Specifically:
2785 (a) If the value started with a double quote, but contained no whitespace,
2786 it was not quoted.
2787 (b) If the value contained whitespace other than a space character (i.e.
2788 tabs or newlines or carriage returns) it was not quoted.
2789 This fix has been applied to the mysql and pgsql lookups by writing a
2790 separate quoting function and calling it from the lookup code. The fix
2791 should probably also be applied to nisplus, ibase and oracle lookups, but
2792 since I cannot test any of those, I have not disturbed their existing code.
2793
2794 2. A hit in the callout cache for a specific address caused a log line with no
2795 reason for rejecting RCPT. Now it says "Previous (cached) callout
2796 verification failure".
2797
2798 3. There was an off-by-one bug in the queryprogram router. An over-long
2799 return line was truncated at 256 instead of 255 characters, thereby
2800 overflowing its buffer with the terminating zero. As well as fixing this, I
2801 have increased the buffer size to 1024 (and made a note to document this).
2802
2803 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2804 when Exim is waiting for an SMTP response from a remote server, Exim
2805 restarts its select() call on the socket, thereby resetting its timeout.
2806 This is not a problem when such interrupts are rare. Somebody set up a cron
2807 job to run exiwhat every 2 minutes, which is less than the normal select()
2808 timeout (5 or 10 minutes). This meant that the select() timeout never
2809 kicked in because it was always reset. I have fixed this by comparing the
2810 time when an interrupt arrives with the time at the start of the first call
2811 to select(). If more time than the timeout has elapsed, the interrupt is
2812 treated as a timeout.
2813
2814 5. Some internal re-factoring in preparation for the addition of Sieve
2815 extensions (by MH). In particular, the "personal" test is moved to a
2816 separate function, and given an option for scanning Cc: and Bcc: (which is
2817 not set for Exim filters).
2818
2819 6. When Exim created an email address using the login of the caller as the
2820 local part (e.g. when creating a From: or Sender: header line), it was not
2821 quoting the local part when it contained special characters such as @.
2822
2823 7. Installed new OpenBSD configuration files.
2824
2825 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2826 try to make them clearer.
2827
2828 9. Callout options, other than the timeout value, were being ignored when
2829 verifying sender addresses in header lines. For example, when using
2830
2831 verify = header_sender/callout=no_cache
2832
2833 the cache was (incorrectly) being used.
2834
283510. Added a missing instance of ${EXE} to the exim_install script; this affects
2836 only the Cygwin environment.
2837
283811. When return_path_on_delivery was set as a log selector, if different remote
2839 addresses in the same message used different return paths and parallel
2840 remote delivery occurred, the wrong values would sometimes be logged.
2841 (Whenever a remote delivery process finished, the return path value from
2842 the most recently started remote delivery process was logged.)
2843
284412. RFC 3848 specifies standard names for the "with" phrase in Received: header
2845 lines when AUTH and/or TLS are in use. This is the "received protocol"
2846 field. Exim used to use "asmtp" for authenticated SMTP, without any
2847 indication (in the protocol name) for TLS use. Now it follows the RFC and
2848 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
2849 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
2850 names appear in log lines as well as in Received: header lines.
2851
285213. Installed MH's patches for Sieve to add the "copy" and "vacation"
2853 extensions, and comparison tests, and to fix some bugs.
2854
285514. Changes to the "personal" filter test:
2856
2857 (1) The test was buggy in that it was just doing the equivalent of
2858 "contains" tests on header lines. For example, if a user's address was
2859 anne@some.where, the "personal" test would incorrectly be true for
2860
2861 To: susanne@some.where
2862
2863 This test is now done by extracting each address from the header in turn,
2864 and checking the entire address. Other tests that are part of "personal"
2865 are now done using regular expressions (for example, to check local parts
2866 of addresses in From: header lines).
2867
2868 (2) The list of non-personal local parts in From: addresses has been
2869 extended to include "listserv", "majordomo", "*-request", and "owner-*",
2870 taken from the Sieve specification recommendations.
2871
2872 (3) If the message contains any header line starting with "List-" it is
2873 treated as non-personal.
2874
2875 (4) The test for "circular" in the Subject: header line has been removed
2876 because it now seems ill-conceived.
2877
287815. Minor typos in src/EDITME comments corrected.
2879
288016. Installed latest exipick from John Jetmore.
2881
288217. If headers_add on a router specified a text string that was too long for
2883 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
2884 of string_sprintf() is now avoided.
2885
288618. $message_body_size was not set (it was always zero) when running the DATA
2887 ACL and the local_scan() function.
2888
288919. For the "mail" command in an Exim filter, no default was being set for
2890 the once_repeat time, causing a random time value to be used if "once" was
2891 specified. (If the value happened to be <= 0, no repeat happened.) The
2892 default is now 0s, meaning "never repeat". The "vacation" command was OK
2893 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
2894 (I found it when inspecting the code).
2895
289620. There is now an overall timeout for performing a callout verification. It
2897 defaults to 4 times the callout timeout, which applies to individual SMTP
2898 commands during the callout. The overall timeout applies when there is more
2899 than one host that can be tried. The timeout is checked before trying the
2900 next host. This prevents very long delays if there are a large number of
2901 hosts and all are timing out (e.g. when the network connections are timing
2902 out). The value of the overall timeout can be changed by specifying an
2903 additional sub-option for "callout", called "maxwait". For example:
2904
2905 verify = sender/callout=5s,maxwait=20s
2906
290721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
2908 to the end before writing, but this should make it even safer).
2909
291022. Exim was forgetting that it had advertised PIPELINING for the second and
2911 subsequent messages on an SMTP connection. It was also not resetting its
2912 memory on STARTTLS and an internal HELO.
2913
291423. When Exim logs an SMTP synchronization error within a session, it now
2915 records whether PIPELINING has been advertised or not.
2916
291724. Added 3 instances of "(long int)" casts to time_t variables that were being
2918 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
2919 rather than long int.
2920
292125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
2922
292326. Added the never_mail option to autoreply.
2924
2925
2926Exim version 4.41
2927-----------------
2928
2929 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
2930 crash if the getsockname() call failed; this can happen if a connection is
2931 closed very soon after it is established. The problem was simply in the
2932 order in which certain operations were done, causing Exim to try to write
2933 to the SMTP stream before it had set up the file descriptor. The bug has
2934 been fixed by making things happen in the correct order.
2935
2936
2937Exim version 4.40
2938-----------------
2939
2940 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
2941 before the connection was closed, thus losing the rejection response.
2942
2943 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
2944 some early Solaris releases, but causes trouble in current releases where
2945 socklen_t is defined.
2946
2947 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
2948 always exist.
2949
2950 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
2951 configured.
2952
2953 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
2954 that releasing the top of it at the end releases what was used for sub-
2955 expansions (unless the block got too big). However, discard this block if
2956 the first thing is a variable or header, so that we can use its block when
2957 it is dynamic (useful for very large $message_headers, for example).
2958
2959 6. Lookups now cache *every* query, not just the most recent. A new, separate
2960 store pool is used for this. It can be recovered when all lookup caches are
2961 flushed. Lookups now release memory at the end of their result strings.
2962 This has involved some general refactoring of the lookup sources.
2963
2964 7. Some code has been added to the store_xxx() functions to reduce the amount
2965 of flapping under certain conditions.
2966
2967 8. log_incoming_interface used to affect only the <= reception log lines. Now
2968 it causes the local interface and port to be added to several more SMTP log
2969 lines, for example "SMTP connection from", and rejection lines.
2970
2971 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
2972
297310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
2974
297511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
2976 could be overwritten at the end of the current message (or the start of a
2977 new message if it was set in a HELO ACL). The value is now preserved for
2978 the duration of the SMTP connection.
2979
298012. If a transport had a headers_rewrite setting, and a matching header line
2981 contained an unqualified address, that address was qualified, even if it
2982 did not match any rewriting rules. The underlying bug was that the values
2983 of the flags that permit the existence of unqualified sender and recipient
2984 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
2985 non-local messages, and by -bnq for local messages) were not being
2986 preserved with the message after it was received.
2987
298813. When Exim was logging an SMTP synchronization error, it could sometimes log
2989 "next input=" as part of the text comprising the host identity instead of
2990 the correct text. The code was using the same buffer for two different
2991 strings. However, depending on which order the printing function evaluated
2992 its arguments, the bug did not always show up. Under Linux, for example, my
2993 test suite worked just fine.
2994
299514. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
2996 doesn't work with some older versions of Perl. It has been changed to "my",
2997 which in any case is probably the better facility to use.
2998
299915. A really picky compiler found some instances of statements for creating
3000 error messages that either had too many or two few arguments for the format
3001 string.
3002
300316. The size of the buffer for calls to the DNS resolver has been increased
3004 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3005 for addresses that have a lot of PTR records. This alleviates a problem; it
3006 does not fully solve it.
3007
300817. A dnsdb lookup for PTR records that receives more data than will fit in the
3009 buffer now truncates the list and logs the incident, which is the same
3010 action as happens when Exim is looking up a host name and its aliases.
3011 Previously in this situation something unpredictable would happen;
3012 sometimes it was "internal error: store_reset failed".
3013
301418. If a server dropped the connection unexpectedly when an Exim client was
3015 using GnuTLS and trying to read a response, the client delivery process
3016 crashed while trying to generate an error log message.
3017
301819. If a "warn" verb in an ACL added multiple headers to a message in a single
3019 string, for example:
3020
3021 warn message = H1: something\nH2: something
3022
3023 the text was added as a single header line from Exim's point of view
3024 though it ended up OK in the delivered message. However, searching for the
3025 second and subsequent header lines using $h_h2: did not work. This has been
3026 fixed. Similarly, if a system filter added multiple headers in this way,
3027 the routers could not see them.
3028
302920. Expanded the error message when iplsearch is called with an invalid key to
3030 suggest using net-iplsearch in a host list.
3031
303221. When running tests using -bh, any delays imposed by "delay" modifiers in
3033 ACLs are no longer actually imposed (and a message to that effect is
3034 output).
3035
303622. If a "gecos" field in a passwd entry contained escaped characters, in
3037 particular, if it contained a \" sequence, Exim got it wrong when building
3038 a From: or a Sender: header from that name. A second bug also caused
3039 incorrect handling when an unquoted " was present following a character
3040 that needed quoting.
3041
304223. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3043 was not being matched caselessly.
3044
304524. Arranged for all hyphens in the exim.8 source to be escaped with
3046 backslashes.
3047
304825. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3049 properly. Recipient callout cache records were still being keyed to include
3050 the sender, even when use_sender was set false. This led to far more
3051 callouts that were necessary. The sender is no longer included in the key
3052 when use_sender is false.
3053
305426. Added "control = submission" modifier to ACLs.
3055
305627. Added the ${base62d: operator to decode base 62 numbers.
3057
305828. dnsdb lookups can now access SRV records.
3059
306029. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3061 the configuration file.
3062
306330. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3064 (-v) mode. This makes the output for a verbose queue run more intelligible.
3065
306631. Added a use_postmaster feature to recipient callouts.
3067
306832. Added the $body_zerocount variable, containing the number of binary zero
3069 bytes in the message body.
3070
307133. The time of last modification of the "new" subdirectory is now used as the
3072 "mailbox time last read" when there is a quota error for a maildir
3073 delivery.
3074
307534. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3076
307735. Added +ignore_unknown as a special item in host lists.
3078
307936. Code for decoding IPv6 addresses in host lists is now included, even if
3080 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3081 address was recognized as an IP address, but was then not correctly decoded
3082 into binary, causing unexpected and incorrect effects when compared with
3083 another IP address.
3084
3085
3086Exim version 4.34
3087-----------------
3088
3089 1. Very minor rewording of debugging text in manualroute to say "list of
3090 hosts" instead of "hostlist".
3091
3092 2. If verify=header_syntax was set, and a header line with an unqualified
3093 address (no domain) and a large number of spaces between the end of the
3094 name and the colon was received, the reception process suffered a buffer
3095 overflow, and (when I tested it) crashed. This was caused by some obsolete
3096 code that should have been removed. The fix is to remove it!
3097
3098 3. When running in the test harness, delay a bit after writing a bounce
3099 message to get a bit more predictability in the log output.
3100
3101 4. Added a call to search_tidyup() just before forking a reception process. In
3102 theory, someone could use a lookup in the expansion of smtp_accept_max_
3103 per_host which, without the tidyup, could leave open a database connection.
3104
3105 5. Added the variables $recipient_data and $sender_data which get set from a
3106 lookup success in an ACL "recipients" or "senders" condition, or a router
3107 "senders" option, similar to $domain_data and $local_part_data.
3108
3109 6. Moved the writing of debug_print from before to after the "senders" test
3110 for routers.
3111
3112 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3113 problems for message scanning, either using a data ACL, or using
3114 local_scan() because the Received: header was not generated till after they
3115 were called (in order to set the time as the time of reception completion).
3116 I have revised the way this works. The header is now generated after the
3117 body is received, but before the ACL or local_scan() are called. After they
3118 are run, the timestamp in the header is updated.
3119
3120
3121Exim version 4.33
3122-----------------
3123
3124 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3125 before starting a queue runner without re-exec. This happened only when
3126 deliver_drop_privilege was set or when the Exim user was set to root. The
3127 effect of the bug was that timeouts during subsequent deliveries caused
3128 crashes instead of being properly handled. The handler is now left at its
3129 default (and expected) setting.
3130
3131 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3132 message, again when deliver_drop_privilege is set or Exim is run as root.
3133 The bug described in (1) was not present in this case, but the tidying up
3134 of the other signals was missing. I have made the two cases consistent.
3135
3136 3. The ignore_target_hosts setting on a manualroute router was being ignored
3137 for hosts that were looked up using the /MX notation.
3138
3139 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3140 in domain lists.
3141
3142 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3143 operated on the sender address. After changing the $sender_address to <>
3144 for the sender address verify, Exim was re-instated it as the original
3145 (before rewriting) address, but remembering that it had rewritten it, so it
3146 wasn't rewriting it again. This bug also had the effect of breaking the
3147 sender address verification caching when the sender address was rewritten.
3148
3149 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3150 This has been changed so that if the ip literal address matches
3151 ignore_target_hosts, the router declines.
3152
3153 7. Added expansion conditions match_domain, match_address, and match_local_
3154 part (NOT match_host).
3155
3156 8. The placeholder for the Received: header didn't have a length field set.
3157
3158 9. Added code to Exim itself and to exim_lock to test for a specific race
3159 condition that could lead to file corruption when using MBX delivery. The
3160 issue is with the lockfile that is created in /tmp. If this file is removed
3161 after a process has opened it but before that process has acquired a lock,
3162 there is the potential for a second process to recreate the file and also
3163 acquire a lock. This could lead to two Exim processes writing to the file
3164 at the same time. The added code performs the same test as UW imapd; it
3165 checks after acquiring the lock that its file descriptor still refers to
3166 the same named file.
3167
316810. The buffer for building added header lines was of fixed size, 8192 bytes.
3169 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3170 when Exim is built.
3171
317211. Added the smtp_active_hostname option. If used, this will typically be made
3173 to depend on the incoming interface address. Because $interface_address is
3174 not set up until the daemon has forked a reception process, error responses
3175 that can happen earlier (such as "too many connections") no longer contain
3176 a host name.
3177
317812. If an expansion in a condition on a "warn" statement fails because a lookup
3179 defers, the "warn" statement is abandoned, and the next ACL statement is
3180 processed. Previously this caused the whole ACL to be aborted.
3181
318213. Added the iplsearch lookup type.
3183
318414. Added ident_timeout as a log selector.
3185
318615. Added tls_certificate_verified as a log selector.
3187
318816. Added a global option tls_require_ciphers (compare the smtp transport
3189 option of the same name). This controls incoming TLS connections.
3190
319117. I finally figured out how to make tls_require_ciphers do a similar thing
3192 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3193 before starting the TLS session.
3194
319518. Tabs are now shown as \t in -bP output.
3196
319719. If the log selector return_path_on_delivery was set, Exim crashed when
3198 bouncing a message because it had too many Received: header lines.
3199
320020. If two routers both had headers_remove settings, and the first one included
3201 a superfluous trailing colon, the final name in the first list and the
3202 first name in the second list were incorrectly joined into one item (with a
3203 colon in the middle).
3204
3205
3206Exim version 4.32
3207-----------------
3208
3209 1. Added -C and -D options to the exinext utility, mainly to make it easier
3210 to include in the automated testing, but these could be helpful when
3211 multiple configurations are in use.
3212
3213 2. The exinext utility was not formatting the output nicely when there was
3214 an alternate port involved in the retry record key, nor when there was a
3215 message id as well (for retries that were specific to a specific message
3216 and a specific host). It was also confused by IPv6 addresses, because of
3217 the additional colons they contain. I have fixed the IPv4 problem, and
3218 patched it up to do a reasonable job for IPv6.
3219
3220 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3221 delivery, the log line now contains "pipelined" if PIPELINING was used.
3222
3223 4. An SMTP transport process used to panic and die if the bind() call to set
3224 an explicit outgoing interface failed. This has been changed; it is now
3225 treated in the same way as a connect() failure.
3226
3227 5. A reference to $sender_host_name in the part of a conditional expansion
3228 that was being skipped was still causing a DNS lookup. This no longer
3229 occurs.
3230
3231 6. The def: expansion condition was not recognizing references to header lines
3232 that used bh_ and bheader_.
3233
3234 7. Added the _cache feature to named lists.
3235
3236 8. The code for checking quota_filecount in the appendfile transport was
3237 allowing one more file than it should have been.
3238
3239 9. For compatibility with Sendmail, the command line option
3240
3241 -prval:sval
3242
3243 is equivalent to
3244
3245 -oMr rval -oMs sval
3246
3247 and sets the incoming protocol and host name (for trusted callers). The
3248 host name and its colon can be omitted when only the protocol is to be set.
3249 Note the Exim already has two private options, -pd and -ps, that refer to
3250 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3251 "s", but I don't think that's a major issue.
3252
325310. A number of refactoring changes to the code, none of which should affect
3254 Exim's behaviour:
3255
3256 (a) The number of logging options was getting close to filling up the
3257 32-bit word that was used as a bit map. I have split them into two classes:
3258 those that are passed in the argument to log_write(), and those that are
3259 only ever tested independently outside of that function. These are now in
3260 separate 32-bit words, so there is plenty of room for expansion again.
3261 There is no change in the user interface or the logging behaviour.
3262
3263 (b) When building, for example, log lines, the code previously used a
3264 macro that called string_cat() twice, in order to add two strings. This is
3265 not really sufficiently general. Furthermore, there was one instance where
3266 it was actually wrong because one of the argument was used twice, and in
3267 one call a function was used. (As it happened, calling the function twice
3268 did not affect the overall behaviour.) The macro has been replaced by a
3269 function that can join an arbitrary number of extra strings onto a growing
3270 string.
3271
3272 (c) The code for expansion conditions now uses a table and a binary chop
3273 instead of a serial search (which was left over from when there were very
3274 few conditions). Also, it now recognizes conditions like "pam" even when
3275 the relevant support is not compiled in: a suitably worded error message is
3276 given if an attempt is made to use such a condition.
3277
327811. Added ${time_interval:xxxxx}.
3279
328012. A bug was causing one of the ddress fields not to be passed back correctly
3281 from remote delivery subprocesses. The field in question was not being
3282 subsequently used, so this caused to problems in practice.
3283
328413. Added new log selectors queue_time and deliver_time.
3285
328614. Might have fixed a bug in maildirsizefile handling that threw up
3287 "unexpected character" debug warnings, and recalculated the data
3288 unnecessarily. In any case, I expanded the warning message to give more
3289 information.
3290
329115. Added the message "Restricted characters in address" to the statements in
3292 the default ACL that block characters like @ and % in local parts.
3293
329416. Change 71 for release 4.31 proved to be much less benign that I imagined.
3295 Three changes have been made:
3296
3297 (a) There was a serious bug; a negative response to MAIL caused the whole
3298 recipient domain to be cached as invalid, thereby blocking all messages
3299 to all local parts at the same domain, from all senders. This bug has
3300 been fixed. The domain is no longer cached after a negative response to
3301 MAIL if the sender used is not empty.
3302
3303 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3304 been restored.
3305
3306 (c) A new callout option, "use_sender" has been added for people who want
3307 the modified behaviour.
3308
3309
3310Exim version 4.31
3311-----------------
3312
3313 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3314 Larry Rosenman.
3315
3316 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3317 indeed breaks things for older releases.
3318
3319 3. Added additional logging to the case where there is a problem reading data
3320 from a filter that is running in a subprocess using a pipe, in order to
3321 try to track down a specific problem.
3322
3323 4. Testing facility fudge: when running in the test harness and attempting
3324 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3325 getting "No route to host". Convert this to a timeout.
3326
3327 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3328 warning.
3329
3330 6. Some OS don't have socklen_t but use size_t instead. This affects the
3331 fifth argument of getsockopt() amongst other things. This is now
3332 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3333 can be set for individual OS. I have set it for SunOS5, OSF1, and
3334 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3335 some earlier ones do not.
3336
3337 7. Change 4.30/15 was not doing the test caselessly.
3338
3339 8. The standard form for an IPv6 address literal was being rejected by address
3340 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3341 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3342 this, as well as the form without the "IPv6" on the front (but only when
3343 address literals are enabled, of course).
3344
3345 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3346
334710. Exim crashed if a message with an empty sender address specified by -f
3348 encountered a router with an errors_to setting. This could be provoked only
3349 by a command such as
3350
3351 exim -f "" ...
3352
3353 where an empty string was supplied; "<>" did not hit this bug.
3354
335511. Installed PCRE release 4.5.
3356
335712. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3358 remained set. It is now erased.
3359
336013. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3361 times from message ids (which are base 36 rather than the normal 62).
3362
336314. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3364 were being counted as actual protocol errors, and logged if the log
3365 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3366 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3367 and DATA following a set of rejected RCPTs do not count as protocol errors.
3368 In other words, Exim assumes they were pipelined, though this may not
3369 actually be the case. Of course, in all cases the client gets an
3370 appropriate error code.
3371
337215. If a lookup fails in an ACL condition, a message about the failure may
3373 be available; it is used if testing the ACL cannot continue, because most
3374 such messages specify what the cause of the deferral is. However, some
3375 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3376 that caused an old message to be retained and used if a later statement
3377 caused a defer, replacing the real cause of the deferral.
3378
337916. If an IP address had so many PTR records that the DNS lookup buffer
3380 was not large enough to hold them, Exim could crash while trying to process
3381 the truncated data. It now detects and logs this case.
3382
338317. Further to 4.21/58, another change has been made: if (and only if) the
3384 first line of a message (the first header line) ends with CRLF, a bare LF
3385 in a subsequent header line has a space inserted after it, so as not to
3386 terminate the header.
3387
338818. Refactoring: tidied an ugly bit of code in appendfile that copied data
3389 unnecessarily, used atoi() instead of strtol(), and didn't check the
3390 termination when getting file sizes from file names by regex.
3391
339219. Completely re-implemented the support for maildirsize files, in the light
3393 of a number of problems with the previous contributed implementation
3394 (4.30/29). In particular:
3395
3396 . If the quota is zero, the maildirsize file is maintained, but no quota is
3397 imposed.
3398
3399 . If the maildir directory does not exist, it is created before any attempt
3400 to write a maildirsize file.
3401
3402 . The quota value in the file is just a cache; if the quota is changed in
3403 the transport, the new value overrides.
3404
3405 . A regular expression is available for excluding directories from the
3406 count.
3407
340820. The autoreply transport checks the characters in options that define the
3409 message's headers; it allows continued headers, but it was checking with
3410 isspace() after an embedded newline instead of explicitly looking for a
3411 space or a tab.
3412
341321. If all the "regular" hosts to which an address was routed had passed their
3414 expiry times, and had not reached their retry times, the address was
3415 bounced, even if fallback hosts were defined. Now Exim should go on to try
3416 the fallback hosts.
3417
341822. Increased buffer sizes in the callout code from 1024 to 4096 to match the
3419 equivalent code in the SMTP transport. Some hosts send humungous responses
3420 to HELO/EHLO, more than 1024 it seems.
3421
342223. Refactoring: code in filter.c used (void *) for "any old type" but this
3423 gives compiler warnings in some environments. I've now done it "properly",
3424 using a union.
3425
342624. The replacement for inet_ntoa() that is used with gcc on IRIX systems
3427 (because of problems with the built-in one) was declared to return uschar *
3428 instead of char *, causing compiler failure.
3429
343025. Fixed a file descriptor leak when processing alias/forward files.
3431
343226. Fixed a minor format string issue in dbfn.c.
3433
343427. Typo in exim.c: ("dmbnz" for "dbmnz").
3435
343628. If a filter file refered to $h_xxx or $message_headers, and the headers
3437 contained RFC 2047 "words", Exim's memory could, under certain conditions,
3438 become corrupted.
3439
344029. When a sender address is verified, it is cached, to save repeating the test
3441 when there is more than one recipient in a message. However, when the
3442 verification involves a callout, it is possible for different callout
3443 options to be set for different recipients. It is too complicated to keep
3444 track of this in the cache, so now Exim always runs a verification when a
3445 callout is required, relying on the callout cache for the optimization.
3446 The overhead is duplication of the address routing, but this should not be
3447 too great.
3448
344930. Fixed a bug in callout caching. If a RCPT command caused the sender address
3450 to be verified with callout=postmaster, and the main callout worked but the
3451 postmaster check failed, the verification correctly failed. However, if a
3452 subsequent RCPT command asked for sender verification *without* the
3453 postmaster check, incorrect caching caused this verification also to fail,
3454 incorrectly.
3455
345631. Exim caches DNS lookup failures so as to avoid multiple timeouts; however,
3457 it was not caching the DNS options (qualify_single, search_parents) that
3458 were used when the lookup failed. A subsequent lookup with different
3459 options therefore always gave the same answer, though there were cases
3460 where it should not have. (Example: a "domains = !$mx_any" option on a
3461 dnslookup router: the "domains" option is always processed without any
3462 widening, but the router might have qualify_single set.) Now Exim uses the
3463 cached value only when the same options are set.
3464
346532. Added John Jetmore's "exipick" utility to the distribution.
3466
346733. GnuTLS: When an attempt to start a TLS session fails for any reason other
3468 than a timeout (e.g. a certificate is required, and is not provided), an
3469 Exim server now closes the connection immediately. Previously it waited for
3470 the client to close - but if the client is SSL, it seems that they each
3471 wait for each other, leading to a delay before one of them times out.
3472
347334: GnuTLS: Updated the code to use the new GnuTLS 1.0.0 API. I have not
3474 maintained 0.8.x compatibility because I don't think many are using it, and
3475 it is clearly obsolete.
3476
347735. Added TLS support for CRLs: a tls_crl global option and one for the smtp
3478 transport.
3479
348036. OpenSSL: $tls_certificate_verified was being set to 1 even if the
3481 client certificate was expired. A simple patch fixes this, though I don't
3482 understand the full logic of why the verify callback is called multiple
3483 times.
3484
348537. OpenSSL: a patch from Robert Roselius: "Enable client-bug workaround.
3486 Versions of OpenSSL as of 0.9.6d include a 'CBC countermeasure' feature,
3487 which causes problems with some clients (such as the Certicom SSL Plus
3488 library used by Eudora). This option, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS,
3489 disables the coutermeasure allowing Eudora to connect."
3490
349138. Exim was not checking that a write() to a log file succeeded. This could
3492 lead to Bad Things if a log got too big, in particular if it hit a file
3493 size limit. Exim now panics and dies if it cannot write to a log file, just
3494 as it does if it cannot open a log file.
3495
349639. Modified OS/Makefile-Linux so that it now contains
3497
3498 CFLAGS=-O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
3499
3500 The two -D definitions ensure that Exim is compiled with large file
3501 support, which makes it possible to handle log files that are bigger than
3502 2^31.
3503
350440. Fixed a subtle caching bug: if (in an ACL or a set of routers, for
3505 instance) a domain was checked against a named list that involved a lookup,
3506 causing $domain_data to be set, then another domain was checked against the
3507 same list, then the first domain was re-checked, the value of $domain_data
3508 after the final check could be wrong. In particular, if the second check
3509 failed, it could be set empty. This bug probably also applied to
3510 $localpart_data.
3511
351241. The strip_trailing_dot option was not being applied to the address given
3513 with the -f command-line option.
3514
351542. The code for reading a message's header from the spool was incrementing
3516 $received_count, but never initializing it. This meant that the value was
3517 incorrect (doubled) while delivering a message in the same process in which
3518 it was received. In the most common configuration of Exim, this never
3519 happens - a fresh exec is done - but it can happen when
3520 deliver_drop_privilege is set.
3521
352243. When Exim logs an SMTP synchronization error - client data sent too soon -
3523 it now includes up to 150 characters of the unexpected data in the log
3524 line.
3525
352644. The exim_dbmbuild utility uses fixed size buffers for reading input lines
3527 and building data strings. The size of both of these buffers was 10 000
3528 bytes - far larger than anybody would *ever* want, thought I. Needless to
3529 say, somebody hit the limit. I have increased the maximum line length to
3530 20 000 and the maximum data length of concatenated lines to 100 000. I have
3531 also fixed two bugs, because there was no checking on these buffers. Tsk,
3532 tsk. Now exim_dbmbuild gives a message and exits with an error code if a
3533 buffer is too small.
3534
353545. The exim_dbmbuild utility did not support quoted keys, as Exim does in
3536 lsearch lookups. Now it does.
3537
353846. When parsing a route_list item in a manualroute router, a fixed-length
3539 buffer was used for the list of hosts. I made this 1024 bytes long,
3540 thinking that nobody would ever have a list of hosts that long. Wrong.
3541 Somebody had a whole pile of complicated expansion conditions, and the
3542 string was silently truncated, leading to an expansion error. It turns out
3543 that it is easier to change to an unlimited length (owing to other changes
3544 that have happened since this code was originally written) than to build
3545 structure for giving a limitation error. The length of the item that
3546 expands into the list of hosts is now unlimited.
3547
354847. The lsearch lookup could not handle data where the length of text line was
3549 more than 4095 characters. Such lines were truncated, leading to shortened
3550 data being returned. It should now handle lines of any length.
3551
355248. Minor wording revision: "cannot test xxx in yyy ACL" becomes "cannot test
3553 xxx condition in yyy ACL" (e.g. "cannot test domains condition in DATA
3554 ACL").
3555
355649. Cosmetic tidy to scripts like exicyclog that are generated by globally
3557 replacing strings such as BIN_DIRECTORY in a source file: the replacement
3558 no longer happens in comment lines. A list of replacements is now placed
3559 at the head of all of the source files, except those whose only change is
3560 to replace PERL_COMMAND in the very first #! line.
3561
356250. Replaced the slow insertion sort in queue.c, for sorting the list of
3563 messages on the queue, with a bottom-up merge sort, using code contributed
3564 by Michael Haardt. This should make operations like -bp somewhat faster on
3565 large queues. It won't affect queue runners, except when queue_run_in_order
3566 is set.
3567
356851. Installed eximstats 1.31 in the distribution.
3569
357052. Added support for SRV lookups to the dnslookup router.
3571
357253. If an ACL referred to $message_body or $message_body_end, the value was not
3573 reset for any messages that followed in the same SMTP session.
3574
357554. The store-handling optimization for building very long strings was not
3576 differentiating between the different store pools. I don't think this
3577 actually made any difference in practice, but I've tidied it.
3578
357955. While running the routers to verify a sender address, $sender_address
3580 was still set to the sender address. This is wrong, because when routing to
3581 send a bounce to the sender, it would be empty. Therefore, I have changed
3582 it so that, while verifying a sender address, $sender_address is s