Make bounce for system quota error the same as for Exim quota.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5a11a7b4 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.482 2007/02/20 09:53:41 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
b4ed4da0 121
5dd1517f
PH
122Exim version 4.66
123-----------------
124
125PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
126 fixed by 4.65/MH/01 (is this a record?) are fixed:
127
128 (i) An empty string was always treated as zero by the numeric comparison
129 operators. This behaviour has been restored.
130
131 (ii) It is documented that the numeric comparison operators always treat
132 their arguments as decimal numbers. This was broken in that numbers
133 starting with 0 were being interpreted as octal.
134
135 While fixing these problems I realized that there was another issue that
136 hadn't been noticed. Values of message_size_limit (both the global option
137 and the transport option) were treated as octal if they started with 0.
138 The documentation was vague. These values are now always treated as
139 decimal, and I will make that clear in the documentation.
140
141
93cfa765
TK
142Exim version 4.65
143-----------------
144
145TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
146 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
147 versions. (#438)
148
d6066548
MH
149MH/01 Don't check that the operands of numeric comparison operators are
150 integers when their expansion is in "skipping" mode (fixes bug
151 introduced by 4.64-PH/07).
152
4362ff0d
PH
153PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
154 child addresses, Exim now panics and dies. Previously, because the count
155 is held in a short int, deliveries were likely to be lost. As such a
156 large number of recipients for a single message is ridiculous
157 (performance will be very, very poor), I have chosen to impose a limit
158 rather than extend the field.
159
93cfa765 160
944e9e9c
TF
161Exim version 4.64
162-----------------
aa41d2de 163
21d74bd9
TK
164TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
165 leftover -K file (the existence of which was triggered by #402).
166 While we were at it, introduced process PID as part of the -K
167 filename. This should rule out race conditions when creating
168 these files.
169
170TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
171 processing considerably. Previous code took too long for large mails,
172 triggering a timeout which in turn triggers #401.
173
174TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
175 in the DK code in transports.c. sendfile() is not really portable,
176 hence the _LINUX specificness.
944e9e9c
TF
177
178TF/01 In the add_headers option to the mail command in an Exim filter,
179 there was a bug that Exim would claim a syntax error in any
180 header after the first one which had an odd number of characters
181 in the field name.
182
2b1c6e3a
PH
183PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
184 callout verification, Exim cached a "reject" for the entire domain. This
185 is correct for most verifications, but it is not correct for a recipient
186 verification with use_sender or use_postmaster set, because in that case
187 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
188 case of MAIL FROM:<> rejection from other early rejections (e.g.
189 rejection of HELO). When verifying a recipient using a non-null MAIL
190 address, the cache is ignored if it shows MAIL FROM:<> rejection.
191 Whatever the result of the callout, the value of the domain cache is
192 left unchanged (for any other kind of callout, getting as far as trying
193 RCPT means that the domain itself is ok).
194
1f872c80
PH
195PH/02 Tidied a number of unused variable and signed/unsigned warnings that
196 gcc 4.1.1 threw up.
197
198PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
199 manifest itself as EPIPE rather than ECONNECT. When tidying away a
200 session, the daemon ignores ECONNECT errors and logs others; it now
201 ignores EPIPE as well.
202
d203e649
PH
203PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
204 (quoted-printable decoding).
205
cc2ed8f7 206PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 207 later the small subsequent patch to fix an introduced bug.
f951fd57 208
ddfcd446
PH
209PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
210
d45b1de8
PH
211PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
212
213PH/08 An error is now given if message_size_limit is specified negative.
214
38a0a95f 215PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 216 to be given (somewhat) arbitrary names.
38a0a95f 217
a2405d83
JJ
218JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
219 in 4.64-PH/09.
220
221JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
222 miscellaneous code fixes
223
6ea85e9a
PH
224PH/10 Added the log_reject_target ACL modifier to specify where to log
225 rejections.
226
26da7e20
PH
227PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
228 hostname. This is wrong, because it relates to the incoming message (and
229 probably the interface on which it is arriving) and not to the outgoing
230 callout (which could be using a different interface). This has been
231 changed to use the value of the helo_data option from the smtp transport
232 instead - this is what is used when a message is actually being sent. If
233 there is no remote transport (possible with a router that sets up host
234 addresses), $smtp_active_hostname is used.
6ea85e9a 235
14aa5a05 236PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 237 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
238 (a) The code assumed that strncpy() returns a negative number on buffer
239 overflow, which isn't the case. Replaced with Exim's string_format()
240 function.
241 (b) There were several signed/unsigned issues. I just did the minimum
242 hacking in of casts. There is scope for a larger refactoring.
243 (c) The code used strcasecmp() which is not a standard C function.
244 Replaced with Exim's strcmpic() function.
245 (d) The code set only $1; it now sets $auth1 as well.
246 (e) A simple test gave the error "authentication client didn't specify
247 service in request". It would seem that Dovecot has changed its
248 interface. Fortunately there's a specification; I followed it and
249 changed what the client sends and it appears to be working now.
250
ff75a1f7
PH
251PH/13 Added $message_headers_raw to provide the headers without RFC 2047
252 decoding.
253
e6f6568e
PH
254PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
255 address A is aliased to B and C, where B exists and C does not. Without
256 -v the output is "A verified" because verification stops after a
257 successful redirection if more than one address is generated. However,
258 with -v the child addresses are also verified. Exim was outputting "A
259 failed to verify" and then showing the successful verification for C,
260 with its parentage. It now outputs "B failed to verify", showing B's
261 parentage before showing the successful verification of C.
262
d6f6e0dc
PH
263PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
264 look up a TXT record in a specific list after matching in a combined
265 list.
266
322050c2
PH
267PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
268 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
269 they consult the DNS. I had assumed they would set it the way they
270 wanted; and indeed my experiments on Linux seem to show that in some
271 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
272 To be on the safe side, however, I have now made the interface to
273 host_find_byname() similar to host_find_bydns(), with an argument
274 containing the DNS resolver options. The host_find_byname() function now
275 sets these options at its start, just as host_find_bydns() does. The smtp
276 transport options dns_qualify_single and dns_search_parents are passed to
277 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
278 of host_find_byname() use the default settings of RES_DEFNAMES
279 (qualify_single) but not RES_DNSRCH (search_parents).
280
08955dd3
PH
281PH/17 Applied (a modified version of) Nico Erfurth's patch to make
282 spool_read_header() do less string testing, by means of a preliminary
283 switch on the second character of optional "-foo" lines. (This is
284 overdue, caused by the large number of possibilities that now exist.
285 Originally there were few.) While I was there, I also converted the
286 str(n)cmp tests so they don't re-test the leading "-" and the first
287 character, in the hope this might squeeze out yet more improvement.
288
1eccaa59
PH
289PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
290 flag allowing group syntax was set by the header_syntax check but not
291 turned off, possible causing trouble later; (2) The flag was not being
292 set at all for the header_verify test, causing "group"-style headers to
293 be rejected. I have now set it in this case, and also caused header_
294 verify to ignore an empty address taken from a group. While doing this, I
295 came across some other cases where the code for allowing group syntax
296 while scanning a header line wasn't quite right (mostly, not resetting
297 the flag correctly in the right place). These bugs could have caused
298 trouble for malformed header lines. I hope it is now all correct.
299
602e59e5
PH
300PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
301 with the "reply" argument non-NULL. The code, however (which originally
302 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
303 but it didn't always do it. This confused somebody who was copying the
304 code for some other use. I have removed all the tests.
305
411ef850
PH
306PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
307 feature that was used to support insecure browsers during the U.S. crypto
308 embargo. It requires special client support, and Exim is probably the
309 only MTA that supported it -- and would never use it because real RSA is
310 always available. This code has been removed, because it had the bad
311 effect of slowing Exim down by computing (never used) parameters for the
312 RSA_EXPORT functionality.
313
7befa435
PH
314PH/21 On the advice of Timo Sirainen, added a check to the dovecot
315 authenticator to fail if there's a tab character in the incoming data
316 (there should never be unless someone is messing about, as it's supposed
317 to be base64-encoded). Also added, on Timo's advice, the "secured" option
318 if the connection is using TLS or if the remote IP is the same as the
319 local IP, and the "valid-client-cert option" if a client certificate has
320 been verified.
321
48da4259 322PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
323 authenticators. This can be used for authorization after authentication
324 succeeds. (In the case of plaintext, it servers for both authentication
325 and authorization.)
326
48da4259
PH
327PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
328 if any retry times were supplied.
329
d1d5595c
PH
330PH/24 Exim crashed if verify=helo was activated during an incoming -bs
331 connection, where there is no client IP address to check. In this
332 situation, the verify now always succeeds.
333
0ef732d9
PH
334PH/25 Applied John Jetmore's -Mset patch.
335
328895cc
PH
336PH/26 Added -bem to be like -Mset, but loading a message from a file.
337
fd700877
PH
338PH/27 In a string expansion for a processed (not raw) header when multiple
339 headers of the same name were present, leading whitespace was being
340 removed from all of them, but trailing whitespace was being removed only
341 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
342 before concatenation. Completely empty headers in a concatenation (as
343 before) are ignored.
fd700877 344
8dce1a6f
PH
345PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
346 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
347
17af4a17
PH
348PH/29 [Removed. This was a change that I later backed out, and forgot to
349 correct the ChangeLog entry (that I had efficiently created) before
350 committing the later change.]
f6c332bd
PH
351
352PH/30 Exim was sometimes attempting to deliver messages that had suffered
353 address errors (4xx response to RCPT) over the same connection as other
354 messages routed to the same hosts. Such deliveries are always "forced",
355 so retry times are not inspected. This resulted in far too many retries
356 for the affected addresses. The effect occurred only when there were more
357 hosts than the hosts_max_try setting in the smtp transport when it had
358 the 4xx errors. Those hosts that it had tried were not added to the list
359 of hosts for which the message was waiting, so if all were tried, there
360 was no problem. Two fixes have been applied:
361
362 (i) If there are any address or message errors in an SMTP delivery, none
363 of the hosts (tried or untried) are now added to the list of hosts
364 for which the message is waiting, so the message should not be a
365 candidate for sending over the same connection that was used for a
366 successful delivery of some other message. This seems entirely
367 reasonable: after all the message is NOT "waiting for some host".
368 This is so "obvious" that I'm not sure why it wasn't done
369 previously. Hope I haven't missed anything, but it can't do any
370 harm, as the worst effect is to miss an optimization.
371
372 (ii) If, despite (i), such a delivery is accidentally attempted, the
373 routing retry time is respected, so at least it doesn't keep
374 hammering the server.
375
c1114884
PH
376PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
377 in ${readsocket because some servers need this prod.
378
7a0743eb
PH
379PH/32 Added some extra debug output when updating a wait-xxx database.
380
0d85fa3f
PH
381PH/33 The hint "could be header name not terminated by colon", which has been
382 given for certain expansion errors for a long time, was not being given
383 for the ${if def:h_colon_omitted{... case.
384
1bf43b78
PH
385PH/34 The spec says: "With one important exception, whenever a domain list is
386 being scanned, $domain contains the subject domain." There was at least
387 one case where this was not true.
388
520de300
PH
389PH/35 The error "getsockname() failed: connection reset by peer" was being
390 written to the panic log as well as the main log, but it isn't really
391 panic-worthy as it just means the connection died rather early on. I have
392 removed the panic log writing for the ECONNRESET error when getsockname()
393 fails.
394
48c7f9e2
PH
395PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
396 runs only) independently of the message's sender address. This meant
397 that, if the 4xx error was in fact related to the sender, a different
398 message to the same recipient with a different sender could confuse
399 things. In particualar, this can happen when sending to a greylisting
400 server, but other circumstances could also provoke similar problems.
401 I have changed the default so that the retry time for these errors is now
402 based a combination of the sender and recipient addresses. This change
403 can be overridden by setting address_retry_include_sender=false in the
404 smtp transport.
405
99ea1c86
PH
406PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
407 remote server are returned as part of bounce messages. This was not
408 happening for LMTP over a pipe (the lmtp transport), but now it is the
409 same for both kinds of LMTP.
410
a2042e78
PH
411PH/38 Despite being documented as not happening, Exim was rewriting addresses
412 in header lines that were in fact CNAMEs. This is no longer the case.
413
4fbcfc2e
PH
414PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
415 and queue runs started by the daemon processed all messages. This has
416 been fixed so that -R and -S can now usefully be given with -q<time>.
417
aa41d2de
PH
418PH/40 Import PCRE release 6.7 (fixes some bugs).
419
af561417
PH
420PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
421
3cc66b45
PH
422PH/42 Give an error if -q is specified more than once.
423
194cc0e4
PH
424PH/43 Renamed the variables $interface_address and $interface_port as
425 $received_ip_address and $received_port, to make it clear that these
426 values apply to message reception, and not to the outgoing interface when
427 a message is delivered. (The old names remain recognized, of course.)
428
a401ddaa
PH
429PH/44 There was no timeout on the connect() call when using a Unix domain
430 socket in the ${readsocket expansion. There now is.
431
4e88a19f
PH
432PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
433 be meaningful with "accept".
434
d7d7b289
SC
435SC/01 Eximstats V1.43
436 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
437
438SC/02 Eximstats V1.44
439 Use a glob alias rather than an array ref in the generated
440 parser. This improves both readability and performance.
441
442SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
443 Collect SpamAssassin and rejection statistics.
444 Don't display local sender or destination tables unless
445 there is data to show.
446 Added average volumes into the top table text output.
447
448SC/04 Eximstats V1.46
449 Collect data on the number of addresses (recipients)
450 as well as the number of messages.
451
452SC/05 Eximstats V1.47
453 Added 'Message too big' to the list of mail rejection
454 reasons (thanks to Marco Gaiarin).
455
456SC/06 Eximstats V1.48
457 Mainlog lines which have GMT offsets and are too short to
458 have a flag are now skipped.
459
460SC/07 Eximstats V1.49 (Alain Williams)
461 Added the -emptyok flag.
462
463SC/08 Eximstats V1.50
464 Fixes for obtaining the IP address from reject messages.
465
0ea2a468
JJ
466JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
467 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
468 whitesspace changes from 4.64-PH/27
469
470JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
471 match 4.64-PH/13
472
473JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
474 are found, allow negative numbers in numeric criteria)
475
476JJ/06 exipick.20061117.2, added new $message_body_missing variable
477
478JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
479 to match changes made in 4.64-PH/43
480
8a10f5a4
PH
481PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
482
30e18802
PH
483PH/47 Put in an explicit test for a DNS lookup of an address record where the
484 "domain" is actually an IP address, and force a failure. This locks out
485 those revolvers/nameservers that support "A-for-A" lookups, in
486 contravention of the specifications.
487
55728a4f
PH
488PH/48 When a host name was looked up from an IP address, and the subsequent
489 forward lookup of the name timed out, the host name was left in
490 $sender_host_name, contrary to the specification.
d7d7b289 491
d7837193
PH
492PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
493 restricted to single-key lookups, Exim was not diagnosing an error if
494 * or *@ was used with a query-style lookup.
495
87054a31
PH
496PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
497
ea2c01d2
MH
498MH/01 local_scan ABI version incremented to 1.1. It should have been updated
499 long ago, but noone interested enough thought of it. Let's just say that
500 the "1.1" means that there are some new functions that weren't there at
501 some point in the past.
502
e4fa6968
PH
503PH/51 Error processing for expansion failure of helo_data from an smtp
504 transport during callout processing was broken.
505
56f5d9bd
PH
506PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
507 tested/used via the -bh/-bhc/-bs options.
508
922e1c28
PH
509PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
510 bug, fixed in subsequent PCRE releases).
511
21eb6e72
PH
512PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
513 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
514
a0540757
PH
515PH/55 Check for a ridiculously long file name in exim_dbmbuild.
516
944e9e9c 517
478be7b0
SC
518Exim version 4.63
519-----------------
520
521SC/01 Use a glob alias rather than an array ref in eximstats generated
522 parser. This improves both readability and performance.
523
524SC/02 Collect SpamAssassin and rejection statistics in eximstats.
525 Don't display local sender or destination tables in eximstats unless
526 there is data to show.
527 Added average volumes into the eximstats top table text output.
528
529SC/03 Collect data on the number of addresses (recipients) as well
530 as the number of messages in eximstats.
531
2b965a65
TF
532TF/01 Correct an error in the documentation for the redirect router. Exim
533 does (usually) call initgroups() when daemonizing.
478be7b0 534
45b91596
PH
535TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
536 with consistent privilege compared to when running as a daemon.
478be7b0 537
c59f5781
TF
538TF/03 Note in the spec that $authenticated_id is not set for local
539 submissions from trusted users.
540
90fc3069
TF
541TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
542 Thanks to Dean Brooks <dean@iglou.com> for the patch.
543
6083aca0
TF
544TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
545 by adding some example configuration directives to the default
546 configuration file. A little bit of work is required to uncomment the
547 directives and define how usernames and passwords are checked, but
548 there is now a framework to start from.
549
765b530f
PH
550PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
551 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
552 without this. I don't know how relevant this is to other LDAP libraries.
553
4e167a8c
PH
554PH/02 Add the verb name to the "unknown ACL verb" error.
555
4608d683
PH
556PH/03 Magnus Holmgren's patch for filter_prepend_home.
557
b8dc3e4a
PH
558PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
559
5418e93b
PH
560PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
561 directory not expanded when it should be if an expanded home directory
562 was set for the address (which is overridden by the transport).
563
b4a9bda2
PH
564PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
565 libradius.
566
45b91596
PH
567PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
568 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
569 because it is too late at that time, and has no effect.
570
5547e2c5
PH
571PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
572 security issue with \' (bugzilla #107). I could not use the
573 PQescapeStringConn() function, because it needs a PGconn value as one of
574 its arguments.
575
dbcef0ea
PH
576PH/08 When testing addresses using -bt, indicate those final addresses that
577 are duplicates that would not cause an additional delivery. At least one
578 person was confused, thinking that -bt output corresponded to deliveries.
579 (Suppressing duplicates isn't a good idea as you lose the information
580 about possibly different redirections that led to the duplicates.)
581
25257489
PH
582PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
583 systems where poll() doesn't work, in particular OS X.
584
c816d124
PH
585PH/10 Added more information to debugging output for retry time not reached.
586
a9ccd69a
PH
587PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
588 operations in malware.c.
589
75fa1910
PH
590PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
591 signatures.
592
a7d7aa58
PH
593PH/13 If write_rejectlog was set false when logging was sent to syslog with
594 syslog_duplication set false, log lines that would normally be written
595 both the the main log and to the reject log were not written to syslog at
596 all.
597
42119b09
PH
598PH/14 In the default configuration, change the use of "message" in ACL warn
599 statements to "add_header".
600
41609df5
PH
601PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
602 not followed by a command (e.g. "seen endif").
603
a5bd321b
PH
604PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
605 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
606 latter.
607
e85a7ad5 608PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
609 so that it is now:
610
e85a7ad5
PH
611 ${if or { \
612 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
613 { match{$h_precedence:}{(?i)bulk|list|junk} } \
614 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
615 }{no}{yes}}
616
e85a7ad5
PH
617 The Auto-Submitted: and various List- headers are standardised, whereas I
618 don't think Precedence: ever was.
5dff5817 619
d8fe1c03
PH
620PH/18 Refactored debugging code in route_finduser() to show more information,
621 in particular, the error code if getpwnam() issues one.
622
16282d2b
PH
623PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
624 This is apparently needed in addition to the PH/07 change above to avoid
625 any possible encoding problems.
626
35d40a98
PH
627PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
628 but not after initializing Perl.
629
034d99ab
PH
630PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
631 output them only if debugging. By default they are written stderr,
632 apparently, which is not desirable.
633
6ec97b1b
PH
634PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
635 queries.
636
e22ca4ac
JJ
637JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
638 --not options
639
640JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
641
33d73e3b
PH
642PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
643 authenticated or an ident call has been made. Suppress the default
644 values for $authenticated_id and $authenticated_sender (but permit -oMai
645 and -oMas) when testing with -bh.
646
9ecb03f3
PH
647PH/24 Re-jigged the order of the tests in the default configuration so that the
648 tests for valid domains and recipients precede the DNS black list and CSA
649 tests, on the grounds that those ones are more expensive.
650
084efe8d
PH
651PH/25 Exim was not testing for a space following SMTP commands such as EHLO
652 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
653 This bug exists in every version of Exim that I still have, right back to
654 0.12.
655
366fc9f0
PH
656PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
657 However, an attempt to turn on case-sensitivity in a regex key by
658 including (?-i) didn't work because the subject string was already
659 lowercased, and the effects were non-intuitive. It turns out that a
660 one-line patch can be used to allow (?-i) to work as expected.
661
c59f5781 662
c887c79e
TF
663Exim version 4.62
664-----------------
665
666TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
667 other effects) broke the use of negated acl sub-conditions.
668
1cce3af8
PH
669PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
670 patch).
671
afb3eaaf
PH
672PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
673 "Deny" causes Exim to reject the incoming connection with a 554 error.
674 Unfortunately, if there is a major crisis, such as a disk failure,
675 tcp-wrappers gives "deny", whereas what one would like would be some
676 kind of temporary error. A kludge has been added to help with this.
677 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
678 554 error is used if errno is still zero or contains ENOENT (which occurs
679 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
680 451 error is used.
681
e173618b
PH
682PH/03 Add -lutil to the default FreeBSD LIBS setting.
683
dd16e114
PH
684PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
685 errors. Otherwise a message that provokes a temporary error (when other
686 messages do not) can cause a whole host to time out.
687
f7fd3850
PH
688PH/05 Batch deliveries by appendfile and pipe transports did not work when the
689 addresses were routed directly to files or pipes from a redirect router.
690 File deliveries just didn't batch; pipe deliveries might have suffered
691 odd errors.
692
d87df92c
PH
693PH/06 A failure to get a lock for a hints database would erroneously always say
694 "Failed to get write lock", even when it was really a read lock.
695
7e9f683d
PH
696PH/07 The appendfile transport was creating MBX lock files with a fixed mode
697 of 0600. This has been changed to use the value of the lockfile_mode
698 option (which defaults to 0600).
699
bfad5236
PH
700PH/08 Applied small patch from the Sieve maintainer.
701
01c490df
PH
702PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
703 folder from quota calculations, a direct delivery into this folder messed
704 up the contents of the maildirsize file. This was because the regex was
705 used only to exclude .Trash (or whatever) when the size of the mailbox
706 was calculated. There was no check that a delivery was happening into an
707 excluded directory. This bug has been fixed by ignoring all quota
708 processing for deliveries into excluded directories.
709
d6629cdc
PH
710PH/10 Added the maildirfolder_create_regex option to appendfile.
711
1cce3af8 712
214e2000
PH
713Exim version 4.61
714-----------------
715
716PH/01 The code for finding all the local interface addresses on a FreeBSD
717 system running IPv6 was broken. This may well have applied to all BSD
718 systems, as well as to others that have similar system calls. The broken
719 code found IPv4 interfaces correctly, but gave incorrect values for the
720 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
721 that it would not match correctly against @[] and not recognize the IPv6
722 addresses as local.
723
f9daeae0
PH
724PH/02 The ipliteral router was not recognizing addresses of the form user@
725 [ipv6:....] because it didn't know about the "ipv6:" prefix.
726
7e66e54d
PH
727PH/03 Added disable_ipv6.
728
c8ea1597
PH
729PH/04 Changed $reply_address to use the raw form of the headers instead of the
730 decoded form, because it is most often used to construct To: headers
731 lines in autoreplies, and the decoded form may well be syntactically
732 invalid. However, $reply_address has leading white space removed, and all
733 newlines turned into spaces so that the autoreply transport does not
734 grumble.
735
911f6fde
PH
736PH/05 If group was specified without a user on a router, and no group or user
737 was specified on a transport, the group from the router was ignored.
738
47ca6d6c
PH
739PH/06 Increased the number of ACL variables to 20 of each type, and arranged
740 for visible compile-time settings that can be used to change these
741 numbers, for those that want even more. Backwards compatibility with old
742 spool files has been maintained. However, going back to a previous Exim
743 release will lost any variables that are in spool files.
744
ed0e9820
PH
745PH/07 Two small changes when running in the test harness: increase delay when
746 passing a TCP/IP connection to a new process, in case the original
747 process has to generate a bounce, and remove special handling of
748 127.0.0.2 (sic), which is no longer necessary.
749
eff37e47
PH
750PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
751 be the same on different OS.
752
1921d2ea
PH
753PH/09 Moved a debug statement in filter processing to avoid a race problem when
754 testing.
755
b3f69ca8
JJ
756JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
757 whether --show-vars was specified or not
758
759JJ/02 exipick: Added support for new ACL variable spool format introduced
760 in 4.61-PH/06
761
424a1c63
PH
762PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
763 syntactically invalid From: or Reply-to: line, and a filter used this to
764 generate an autoreply, and therefore failed to obtain an address for the
765 autoreply, Exim could try to deliver to a non-existent relative file
766 name, causing unrelated and misleading errors. What now happens is that
767 it logs this as a hard delivery error, but does not attempt to create a
768 bounce message.
769
7a100415
PH
770PH/11 The exinext utility has a -C option for testing purposes, but although
771 the given file was scanned by exinext itself; it wasn't being passed on
772 when Exim was called.
773
19b9dc85
PH
774PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
775 an end-of-file indication when reading a command response.
776
309bd837
PH
777PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
778 compiled. In many other places in Exim, IPv6 addresses are always
779 recognized, so I have changed this. It also means that IPv4 domain
780 literals of the form [IPV4:n.n.n.n] are now always recognized.
781
59e82a2a
PH
782PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
783 used if the router is not running as root, for example, when verifying at
784 ACL time, or when using -bh. The debugging output from this situation was
785 non-existent - all you got was a failure to exec. I have made two
786 changes:
787
788 (a) Failures to set uid/gid, the current directory, or a process leader
789 in a subprocess such as that created by queryprogram now generate
790 suitable debugging ouput when -d is set.
791
792 (b) The queryprogram router detects when it is not running as root,
793 outputs suitable debugging information if -d is set, and then runs
794 the subprocess without attempting to change uid/gid.
795
9edc04ce
PH
796PH/15 Minor change to Makefile for building test_host (undocumented testing
797 feature).
798
1349e1e5
PH
799PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
800 additional section of a DNS packet that returns MX or SRV records.
801 Instead, it always explicitly searches for A/AAAA records. This avoids
802 major problems that occur when a DNS server includes only records of one
803 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
804 fixed another bug: if SRV records were looked up and the corresponding
805 address records were *not* found in the additional section, the port
806 values from the SRV records were lost.
807
ea49d0e1
PH
808PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
809 using the correct key (the original address) when searching the retry
810 rules in order to find which one to use for generating the retry hint.
811
064a94c9
PH
812PH/18 If quota_warn_message contains a From: header, Exim now refrains from
813 adding the default one. Similarly, if it contains a Reply-To: header, the
814 errors_reply_to option, if set, is not used.
815
727071f8
PH
816PH/19 When calculating a retry time, Exim used to measure the "time since
817 failure" by looking at the "first failed" field in the retry record. Now
818 it does not use this if it is later than than the arrival time of the
819 message. Instead it uses the arrival time. This makes for better
820 behaviour in cases where some deliveries succeed, thus re-setting the
821 "first failed" field. An example is a quota failure for a huge message
822 when small messages continue to be delivered. Without this change, the
823 "time since failure" will always be short, possible causing more frequent
824 delivery attempts for the huge message than are intended.
dd16e114 825 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 826
f78eb7c6
PH
827PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
828 $1, $2, $3) because the numerical variables can be reset during some
829 expansion items (e.g. "match"), thereby losing the authentication data.
830
21c28500
PH
831PH/21 Make -bV show the size of off_t variables so that the test suite can
832 decide whether to run tests for quotas > 2G.
833
834PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
835 mailbox_size, and mailbox_filecount in the appendfile transport. If a
836 filecount value is greater than 2G or if a quota value is greater than 2G
837 on a system where the size of off_t is not greater than 4, a panic error
838 is given.
839
1688f43b
PH
840PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
841 never match. The debug and -bh output now contains an explicit error
842 message indicating a malformed IPv4 address or mask.
843
844PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
845 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
846 PH/23 above applies.
847
9675b384
PH
848PH/25 Do not write to syslog when running in the test harness. The only
849 occasion when this arises is a failure to open the main or panic logs
850 (for which there is an explicit test).
851
6a3f1455
PH
852PH/26 Added the /no_tell option to "control=freeze".
853
dac79d3e
PH
854PH/27 If a host name lookup failed very early in a connection, for example, if
855 the IP address matched host_lookup and the reverse lookup yielded a name
856 that did not have a forward lookup, an error message of the form "no IP
857 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
858 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 859
5977a0b3
PH
860PH/28 An enabling patch from MH: add new function child_open_exim2() which
861 allows the sender and the authenticated sender to be set when
862 submitting a message from within Exim. Since child_open_exim() is
863 documented for local_scan(), the new function should be too.
864
c91535f3
PH
865PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
866 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
867 results in an empty string is now treated as unset.
868
0d46a8c8
PH
869PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
870
278c6e6c
PH
871PH/31 Added sender_verify_fail logging option.
872
2cbb4081
PH
873PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
874 needed by RFC 822 but not by RFC 2822 was commented out. I have now
875 tidied the source and removed it altogether.
876
3eef829e
PH
877PH/33 When a queue run was abandoned because the load average was too high, a
878 log line was always written; now it is written only if the queue_run log
879 selector is set. In addition, the log line for abandonment now contains
880 information about the queue run such as the pid. This is always present
881 in "start" and "stop" lines but was omitted from the "abandon" line.
882
1ab95fa6
PH
883PH/34 Omit spaces between a header name and the colon in the error message that
884 is given when verify = headers_syntax fails (if there are lots of them,
885 the message gets confusing).
886
230205fc
PH
887PH/35 Change the default for dns_check_names_pattern to allow slashes within
888 names, as there are now some PTR records that contain slashes. This check
889 is only to protect against broken name servers that fall over on strange
890 characters, so the fact that it applies to all lookups doesn't matter.
891
75e0e026
PH
892PH/36 Now that the new test suite is complete, we can remove some of the
893 special code in Exim that was needed for the old test suite. For example,
894 sorting DNS records because real resolvers return them in an arbitrary
895 order. The new test suite's fake resolver always returns records in the
896 same order.
897
898PH/37 When running in the test harness, use -odi for submitted messages (e.g.
899 bounces) except when queue_only is set, to avoid logging races between
900 the different processes.
901
145396a6
PH
902PH/38 Panic-die if .include specifies a non-absolute path.
903
3cd34f13
PH
904PH/39 A tweak to the "H" retry rule from its user.
905
11121d3d
JJ
906JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
907 a label. They prevented compilation on older perls.
908
909JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
910 a warning to be raised on newish perls.
911
912JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
913 on queue. Changes to match documented behaviour of showing count of
914 messages matching specified criteria.
915
8def5aaf
PH
916PH/40 Changed the default ident timeout from 30s to 5s.
917
929ba01c
PH
918PH/41 Added support for the use of login_cap features, on those BSD systems
919 that have them, for controlling the resources used by pipe deliveries.
920
2632889e
PH
921PH/42 The content-scanning code uses fopen() to create files in which to put
922 message data. Previously it was not paying any attention to the mode of
923 the files. Exim runs with umask(0) because the rest of the code creates
924 files with open(), and sets the required mode explicitly. Thus, these
925 files were ending up world-writeable. This was not a big issue, because,
926 being within the spool directory, they were not world-accessible. I have
927 created a function called modefopen, which takes an additional mode
928 argument. It sets umask(777), creates the file, chmods it to the required
929 mode, then resets the umask. All the relevant calls to fopen() in the
930 content scanning code have been changed to use this function.
931
944a9c55
PH
932PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
933 to 24 hours. This avoids potential overflow problems when processing G
934 and H retry rules. I suspect nobody ever tinkers with this value.
935
4a23603b
PH
936PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
937
4730f942
PH
938PH/45 When the plaintext authenticator is running as a client, the server's
939 challenges are checked to ensure they are valid base64 strings. By
940 default, the authentication attempt is cancelled if an invalid string is
941 received. Setting client_ignore_invalid_base64 true ignores these errors.
942 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
943 they are received. Thus, the responses can be made to depend on the
944 challenges. If an invalid string is ignored, an empty string is placed in
945 the variable.
946
30dba1e6
PH
947PH/46 Messages that are created by the autoreply transport now contains a
948 References: header, in accordance with RFCs 2822 and 3834.
949
382afc6b
PH
950PH/47 Added authenticated_sender_force to the smtp transport.
951
a86229cf
PH
952PH/48 The ${prvs expansion was broken on systems where time_t was long long.
953
50c99ba6
PH
954PH/49 Installed latest patch from the Sieve maintainer.
955
d35e429d
PH
956PH/50 When an Exim quota was set without a file count quota, and mailbox_size
957 was also set, the appendfile transport was unnecessarily scanning a
958 directory of message files (e.g. for maildir delivery) to find the count
959 of files (along with the size), even though it did not need this
960 information. It now does the scan only if it needs to find either the
961 size of the count of files.
962
f90d018c
PH
963PH/51 Added ${time_eval: to convert Exim time strings into seconds.
964
75def545
PH
965PH/52 Two bugs concerned with error handling when the smtp transport is
966 used in LMTP mode:
967
968 (i) Exim was not creating retry information for temporary errors given
969 for individual recipients after the DATA command when the smtp transport
970 was used in LMTP mode. This meant that they could be retried too
971 frequently, and not timed out correctly.
972
973 (ii) Exim was setting the flag that allows error details to be returned
974 for LMTP errors on RCPT commands, but not for LMTP errors for individual
975 recipients that were returned after the DATA command.
976
977PH/53 This is related to PH/52, but is more general: for any failing address,
978 when detailed error information was permitted to be returned to the
979 sender, but the error was temporary, then after the final timeout, only
980 "retry timeout exceeded" was returned. Now it returns the full error as
981 well as "retry timeout exceeded".
982
c46782ef
PH
983PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
984 do this, and (what is worse) MTAs that accept it.
985
71fafd95
PH
986PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
987 will now be deprecated.
988
2c5db4fd
PH
989PH/56 New os.c-cygwin from the Cygwin maintainer.
990
9cf6b11a
JJ
991JJ/06 exipick: added --unsorted option to allow unsorted output in all output
992 formats (previously only available in exim formats via -bpr, -bpru,
993 and -bpra. Now also available in native and exiqgrep formats)
994
995JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
996 with very large, slow to parse queues
997
998JJ/08 exipick: added ! as generic prefix to negate any criteria format
999
1000JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1001
898d150f
PH
1002PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1003 responses to authentication challenges, though it was showing the
1004 challenges; (ii) I've removed the CR characters from the debug output for
1005 SMTP output lines.
1006
46218253
PH
1007PH/58 Allow for the insertion of a newline as well as a space when a string
1008 is turned into more than one encoded-word during RFC 2047 encoding. The
1009 Sieve code now uses this.
1010
e97957bc
PH
1011PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1012 data_4xx, lost_connection, tls_required.
1013
81e509d7
PH
1014PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1015 message was being sent as an SMTP response.
1016
3d240ff7
PH
1017PH/61 Add -l and -k options to exicyclog.
1018
b37c4101
PH
1019PH/62 When verifying, if an address was redirected to one new address, so that
1020 verification continued, and the new address failed or deferred after
1021 having set something in $address_data, the value of $address_data was not
1022 passed back to the ACL. This was different to the case when no
1023 redirection occurred. The value is now passed back in both cases.
1024
79378e0f
PH
1025PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1026 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1027 use login_cap.h, so on its own it isn't the distinguishing feature. The
1028 new name refers directly to the setclassresources() function.
1029
e49c7bb4
PH
1030PH/65 Added configuration files for NetBSD3.
1031
d114ec46
PH
1032PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1033
f3d7df6c
PH
1034PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1035 is preferred over IPv4.
1036
715ab376
PH
1037PH/68 The bounce_return_message and bounce_return_body options were not being
1038 honoured for bounces generated during the reception of non-SMTP messages.
1039 In particular, this applied to messages rejected by the ACL. This bug has
1040 been fixed. However, if bounce_return_message is true and bounce_return_
1041 body is false, the headers that are returned for a non-SMTP message
1042 include only those that have been read before the error was detected.
1043 (In the case of an ACL rejection, they have all been read.)
1044
6b31b150
PH
1045PH/69 The HTML version of the specification is now built in a directory called
1046 spec_html instead of spec.html, because the latter looks like a path with
1047 a MIME-type, and this confuses some software.
1048
1049PH/70 Catch two compiler warnings in sieve.c.
1050
d515a917
PH
1051PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1052 function verify_get_ident() calls ip_connect() to connect a socket, but
1053 if the "connect()" function timed out, ip_connect() used to close the
1054 socket. However, verify_get_ident() also closes the socket later, and in
1055 between Exim writes to the log, which may get opened at this point. When
1056 the socket was closed in ip_connect(), the log could get the same file
1057 descriptor number as the socket. This naturally causes chaos. The fix is
1058 not to close the socket in ip_connect(); the socket should be closed by
1059 the function that creates it. There was only one place in the code where
1060 this was missing, in the iplookup router, which I don't think anybody now
1061 uses, but I've fixed it anyway.
1062
9b8fadde
PH
1063PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1064 well as to direct DNS lookups. Otherwise the handling of names in host
1065 lists is inconsistent and therefore confusing.
1066
214e2000 1067
5de37277
PH
1068Exim version 4.60
1069-----------------
1070
cc38ddbf
PH
1071PH/01 Two changes to the default runtime configuration:
1072
1073 (1) Move the checks for relay_from_hosts and authenticated clients from
1074 after to before the (commented out) DNS black list checks.
1075
1076 (2) Add control=submission to the relay_from_hosts and authenticated
1077 clients checks, on the grounds that messages accepted by these
1078 statements are most likely to be submissions.
5de37277 1079
72fdd6ae
PH
1080PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1081
1082 (1) Generate an error if the third argument for the ${prvs expansion is
1083 not a single digit.
1084
1085 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1086 string.
1087
1088 (3) Reset the variables that are obtained from the first argument of
1089 ${prvscheck and used in the second argument before leaving the code,
1090 because their memory is reclaimed, so using them afterwards may do
1091 silly things.
1092
1093 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1094 one (it's much easier than Tom thought :-).
1095
1096 (5) Because of (4), we can now allow for the use of $prvscheck_result
1097 inside the third argument.
cb9328de 1098
cb741023
PH
1099PH/03 For some reason, the default setting of PATH when running a command from
1100 a pipe transport was just "/usr/bin". I have changed it to
1101 "/bin:/usr/bin".
1102
f174f16e
PH
1103PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1104 anything to be listed in the output from -bV.
b2f5a032 1105
c25242d7
PH
1106PH/05 When a filter generated an autoreply, the entire To: header line was
1107 quoted in the delivery log line, like this:
1108
1109 => >A.N.Other <ano@some.domain> <original@ddress> ...
1110
1111 This has been changed so that it extracts the operative address. There
1112 may be more than one such address. If so, they are comma-separated, like
1113 this:
1114
1115 => >ano@some.domain,ona@other.domain <original@ddress> ...
1116
82c19f95
PH
1117PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1118 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1119 not being looked up in the rDNS to get a host name, Exim was showing the
1120 IP address twice in Received: lines, even though the IP addresses were
1121 identical. For example:
1122
1123 Received: from [1.2.3.4] (helo=[1.2.3.4])
1124
1125 However, if the real host name was known, it was omitting the HELO data
1126 if it matched the actual IP address. This has been tidied up so that it
1127 doesn't show the same IP address twice.
1128
d7ffbc12
PH
1129PH/07 When both +timestamp and +memory debugging was on, the value given by
1130 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1131 called by the debug printing, thereby overwriting the timestamp buffer.
1132 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1133
9f526266
PH
1134PH/08 When the original message was included in an autoreply transport, it
1135 always said "this is a copy of the message, including all the headers",
1136 even if body_only or headers_only was set. It now gives an appropriate
1137 message.
1138
87fcc8b9
PH
1139PH/09 Applied a patch from the Sieve maintainer which:
1140
1141 o fixes some comments
1142 o adds the (disabled) notify extension core
1143 o adds some debug output for the result of if/elsif tests
1144 o points to the current vacation draft in the documentation
1145 and documents the missing references header update
1146
1147 and most important:
1148
1149 o fixes a bug in processing the envelope test (when testing
1150 multiple envelope elements, the last element determinted the
1151 result)
1152
456682f5
PH
1153PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1154 Electronic Mail") by including:
1155
1156 Auto-submitted: auto-generated
1157
1158 in the messages that it generates (bounce messages and others, such as
1159 warnings). In the case of bounce messages for non-SMTP mesages, there was
1160 also a typo: it was using "Auto_submitted" (underscore instead of
1161 hyphen). Since every message generated by Exim is necessarily in response
1162 to another message, thes have all been changed to:
1163
1164 Auto-Submitted: auto-replied
1165
1166 in accordance with these statements in the RFC:
1167
1168 The auto-replied keyword:
1169
1170 - SHOULD be used on messages sent in direct response to another
1171 message by an automatic process,
1172
1173 - MUST NOT be used on manually-generated messages,
1174
1175 - MAY be used on Delivery Status Notifications (DSNs) and Message
1176 Disposition Notifications (MDNs),
1177
1178 - MUST NOT be used on messages generated by automatic or periodic
1179 processes, except for messages which are automatic responses to
1180 other messages.
1181
3e46c1aa
PH
1182PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1183 to the default Received: header definition.
456682f5 1184
49826d12
PH
1185PH/12 Added log selector acl_warn_skipped (default on).
1186
eba0c039
PH
1187PH/13 After a successful wildlsearch lookup, discard the values of numeric
1188 variables because (a) they are in the wrong storage pool and (b) even if
1189 they were copied, it wouldn't work properly because of the caching.
1190
a0d6ba8a
PH
1191PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1192 checking when decoding. Apparently there are clients that generate
1193 overlong encoded strings. Why am I not surprised?
1194
f0917727
PH
1195PH/15 If the first argument of "${if match_address" was not empty, but did not
1196 contain an "@" character, Exim crashed. Now it writes a panic log message
1197 and treats the condition as false.
1198
096fee00
PH
1199PH/16 In autoreply, treat an empty string for "once" the same as unset.
1200
024bd3c2
PH
1201PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1202 extension "envelope-auth". The code is finished and in agreement with
1203 other implementations, but there is no documentation so far and in fact,
1204 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1205 not changing the active code.
1206
1207 Print executed "if" and "elsif" statements when debugging is used. This
1208 helps a great deal to understand what a filter does.
1209
1210 Document more things not specified clearly in RFC3028. I had all this
1211 sorted out, when out of a sudden new issues came to my mind. Oops."
1212
df199fec
PH
1213PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1214 (Bugzilla #53).
1215
d27f1df3
PH
1216PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1217 canonical form (as documented). However, after a host name lookup from
1218 the IP address, check_host() was doing a simple string comparison with
1219 addresses acquired from the DNS when checking that the found name did
1220 have the original IP as one of its addresses. Since any found IPv6
1221 addresses are likely to be in abbreviated form, the comparison could
1222 fail. Luckily, there already exists a function for doing the comparison
1223 by converting both addresses to binary, so now that is used instead of
1224 the text comparison.
1225
96776534
PH
1226PH/20 There was another similar case to PH/19, when a complete host name was
1227 given in a host list; looking up its IP address could give an abbreviated
1228 form, whereas the current host's name might or might not be abbreviated.
1229 The same fix has been applied.
1230
5de37277 1231
9a799bc0
PH
1232Exim version 4.54
1233-----------------
1234
1235PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1236 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1237 It now does.
1238
99a4b039
PH
1239PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1240 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1241
1242PH/03 Typo: missing ".o" in src/pcre/Makefile.
1243
4b233853
PH
1244PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1245 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1246 Also, for "Auto-Submitted", treat anything other than "no" as
1247 non-personal, in accordance with RFC 3834. (Previously it treated
1248 anything starting "auto-" as non-personal.)
1249
8857ccfd
PH
1250TF/01 The control=submission/name=... option had a problem with syntax
1251 errors if the name included a slash character. The /name= option
1252 now slurps the rest of the string, so it can include any characters
1253 but it must come last in the list of options (after /sender_retain
1254 or /domain=).
1255
433a2980
PH
1256PH/05 Some modifications to the interface to the fake nameserver for the new
1257 testing suite.
1258
3e46c1aa 1259
9a799bc0 1260
e3a311ba
TK
1261Exim version 4.53
1262-----------------
1263
1264TK/01 Added the "success_on_redirect" address verification option. See
1265 NewStuff for rationale and an example.
1266
13b685f9
PH
1267PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1268
395ff96d
PH
1269PH/02 Patch to exigrep to allow it to work on syslog lines.
1270
5b68f6e4
PH
1271PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1272 fread() to skip over the body file's header line, because in Cygwin the
1273 header line is locked and is inaccessible.
1274
1ab52c69
PH
1275PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1276 co-exist for some time) to make it clear that it is the Exim ID that is
1277 referenced, not the Message-ID: header line.
1278
b07e6aa3
PH
1279PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1280 string_format() function, because snprintf() does not exist on all
1281 operating systems.
1282
254e032f
PH
1283PH/06 The use of forbid_filter_existstest now also locks out the use of the
1284 ${stat: expansion item.
1285
3af76a81
PH
1286PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1287 protocol synchronization error", to keep the pedants happy.
1288
2548ba04
PH
1289PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1290 well as for IRIX systems, when gcc is being used. See the host.c source
1291 file for comments.
1292
b6c6011d
PH
1293PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1294
cf39cf57
PH
1295PH/10 Named domain lists were not working if used in a queue_smtp_domains
1296 setting.
1297
f1513293
PH
1298PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1299 transport and to the smtp transport in LMTP mode.
1300
727549a4
PH
1301TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1302
af46795e
PH
1303PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1304 run a filter in a subprocess. This could lead to confusion in subsequent
1305 lookups in the parent process. There should also be a search_tidyup() at
1306 the end of the subprocess.
1307
d7b47fd0
PH
1308PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1309 only if the host matched helo_try_verify_hosts, which caused the
1310 verification to occur when the EHLO/HELO command was issued. The ACL just
1311 tested the remembered result. Now, if a previous verification attempt has
1312 not happened, "verify = helo" does it there and then.
1313
ee744174
JJ
1314JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1315
b582ab87
PH
1316TK/03 Fix log output including CR from clamd.
1317
41a13e0a
PH
1318PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1319 exist provoked a memory error which could cause a segfault.
1320
f625cc5a
PH
1321PH/15 Installed PCRE 6.2
1322
1323PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1324
21f7af35
PH
1325PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1326 of the problem. Specifically, suggested +O2 rather than +O1 for the
1327 HP-UX compiler.
1328
31480e42
PH
1329PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1330
2d280592
PH
1331PH/20 If a delivery was routed to a non-standard port by means of an SRV
1332 record, the port was not correctly logged when the outgoing_port log
1333 selector was set (it logged the transort's default port).
1334
7cd1141b
PH
1335PH/21 Added support for host-specific ports to manualroute, queryprogram,
1336 fallback_hosts, and "hosts" in the smtp transport.
1337
1338PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1339 host errors such as "Connection refused".
1340
750af86e
PH
1341PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1342 authentication with radiusclient 0.4.9:
1343
1344 - Error returned from rc_read_config was caught wrongly
1345 - Username/password not passed on to radius server due to wrong length.
1346
1347 The presumption is that some radiusclient API changes for 4.51/PH/17
1348 were not taken care of correctly. The code is still untested by me (my
1349 Linux distribution still has 0.3.2 of radiusclient), but it was
1350 contributed by a Radius user.
1351
1352PH/24 When doing a callout, the value of $domain wasn't set correctly when
1353 expanding the "port" option of the smtp transport.
1354
4304270b
TK
1355TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1356 while reading a MIME header. Thanks to Tom Hughes for a patch.
1357
750af86e
PH
1358PH/24 Include config.h inside local_scan.h so that configuration settings are
1359 available.
1360
64ffc24f
PH
1361PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1362 that in an ACL for RCPT (for example), you can examine exactly what was
1363 received.
1364
5dd9625b
PH
1365PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1366 commands, but it was not correctly comparing the address with the actual
1367 client host address. Thus, it would show the EHLO address in Received:
1368 header lines when this was not necessary.
1369
5591031b
PH
1370PH/27 Added the % operator to ${eval:}.
1371
ba18e66a
PH
1372PH/28 Exim tries to create and chdir to its spool directory when it starts;
1373 it should be ignoring failures (because with -C, for example, it has lost
1374 privilege). It wasn't ignoring creation failures other than "already
1375 exists".
1376
9cec981f
PH
1377PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1378 -bV or -d is used.
1379
aa2b5c79
PH
1380PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1381 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1382 too many continuations, the temporary file was not being removed, and the
1383 return code was incorrect.
aa2b5c79 1384
48a53b7f
PH
1385PH/31 Missing "BOOL" in function definition in filtertest.c.
1386
1c59d63b
PH
1387PH/32 Applied Sieve patches from the maintainer.
1388
671012da
TK
1389TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1390
1509d3a8
PH
1391PH/33 Added "verify = not_blind".
1392
1393PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1394 Local/Makefile (with some defaults set). These are used in built scripts
1395 such as exicyclog, but they have never been used in the exim_install
1396 script (though there are many overriding facilities there). I have
1397 arranged that the exim_install script now takes note of these two
1398 settings.
1399
1400PH/35 Installed configuration files for Dragonfly.
1401
2fe1a124
PH
1402PH/36 When a locally submitted message by a trusted user did not contain a
1403 From: header, and the sender address was obtained from -f or from an SMTP
1404 MAIL command, and the trusted user did not use -F to supply a sender
1405 name, $originator_name was incorrectly used when constructing a From:
1406 header. Furthermore, $originator_name was used for submission mode
1407 messages from external hosts without From: headers in a similar way,
1408 which is clearly wrong.
1409
8800895a
PH
1410PH/37 Added control=suppress_local_fixups.
1411
ccfdb010
PH
1412PH/38 When log_selector = +received_sender was set, and the addition of the
1413 sender made the log line's construction buffer exactly full, or one byte
1414 less than full, an overflow happened when the terminating "\n" was
1415 subsequently added.
1416
1130bfb0
PH
1417PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1418 when the result of a list match is failure because a DNS lookup failed.
1419
ebcb507f
PH
1420PH/40 RM_COMMAND is now used in the building process.
1421
c35e155c
PH
1422PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1423 the "build-* directories that it finds.
1424
95d1f782
PH
1425PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1426 address in a domain literal was a prefix of an interface address.
1427
fd6de02e
PH
1428PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1429 when verifying a sender address, unless rewrite_headers is false.
1430
58de37c5
PH
1431PH/44 Wrote a long comment about why errors_to addresses are verified as
1432 recipients, not senders.
1433
261cf466
TF
1434TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1435 the ratelimit ACL was added.
1436
3ee512ff
PH
1437PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1438
e08c430f
PH
1439PH/46 Added extra information about PostgreSQL errors to the error string.
1440
bef5a11f
PH
1441PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1442 avoiding the need to install special zones in a real server. This is
1443 backwards compatible; if it can't find the fake resolver, it drops back.
1444 Thus, both old and new test suites can be run.
1445
7546de58
TF
1446TF/02 Added util/ratelimit.pl
1447
e5d5a95f
TF
1448TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1449 clock is set back in time.
1450
2e88a017
TF
1451TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1452 Candler <B.Candler@pobox.com>.
1453
a5f65aa4
TF
1454TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1455 OK for addresses that are the result of redirections.
1456
e7726cbf
PH
1457PH/48 A number of further additions for the benefit of the new test suite,
1458 including a fake gethostbyname() that interfaces to the fake DNS resolver
1459 (see PH/47 above).
1460
a7fdad5b
TF
1461TF/06 The fix for widen_domains has also been applied to qualify_single and
1462 search_parents which are the other dnslookup options that can cause
1463 header rewrites.
1464
6af56900
PH
1465PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1466 type ("H").
1467
0925ede6
PH
1468PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1469
66afa403
TF
1470TF/07 Exim produced the error message "an SRV record indicated no SMTP
1471 service" if it encountered an MX record with an empty target hostname.
1472 The message is now "an MX or SRV record indicated no SMTP service".
1473
0154e85a
TF
1474TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1475 if the DNS of the sending site is misconfigured. This is quite a
1476 common situation. This change restores the behaviour of treating a
1477 helo verification defer as a failure.
1478
16f12c76
PH
1479PH/51 If self=fail was set on a router, the bounce message did not include the
1480 actual error message.
1481
bbe902f0 1482
e5a9dba6
PH
1483Exim version 4.52
1484-----------------
1485
1486TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1487
22c3b60b
PH
1488PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1489 command itself ended in error, the underlying message about the transport
1490 filter timeout was being overwritten with the pipe command error. Now the
1491 underlying error message should be appended to the second error message.
1492
06a9b4b5
PH
1493TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1494
c1ac6996
PH
1495PH/02 Reduce the amount of output that "make" produces by default. Full output
1496 can still be requested.
1497
9c7a242c
PH
1498PH/03 The warning log line about a condition test deferring for a "warn" verb
1499 was being output only once per connection, rather than after each
1500 occurrence (because it was using the same function as for successful
1501 "warn" verbs). This seems wrong, so I have changed it.
1502
87ba3f5f
PH
1503TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1504 it should not have, which might have caused a crash in the right
1505 circumstances, but probably never did.
1506
1507PH/04 Installed a modified version of Tony Finch's patch to make submission
1508 mode fix the return path as well as the Sender: header line, and to
1509 add a /name= option so that you can make the user's friendly name appear
1510 in the header line.
1511
29aba418
TF
1512TF/03 Added the control = fakedefer ACL modifier.
1513
fe0dab11
TF
1514TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1515 Mark Lowes for thorough testing.
870f6ba8 1516
11d337a4
TK
1517TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1518
1519TK/03 Merged latest SRS patch from Miles Wilton.
1520
415c8f3b
PH
1521PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1522 with the definition in sysexits.h (which is #included earlier).
1523 Fortunately, Exim does not actually use EX_OK. The code used to try to
1524 preserve the sysexits.h value, by assumimg that macro definitions were
1525 scanned for macro replacements. I have been disabused of this notion,
1526 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1527
958541e9
PH
1528PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1529 in the smtp transport. When a block could not be written in a single
1530 write() function, the timeout was being re-applied to each part-write.
1531 This seems wrong - if the receiver was accepting one byte at a time it
1532 would take for ever. The timeout is now adjusted when this happens. It
1533 doesn't have to be particularly precise.
1534
c206415f
TK
1535TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1536 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1537
2a4be8f9
PH
1538PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1539 without a domain if the check to <postmaster@domain> fails.
1540
1cba11c5
SC
1541SC/01 Eximstats: added -xls and the ability to specify output files
1542 (patch written by Frank Heydlauf).
1543
1544SC/02 Eximstats: use FileHandles for outputing results.
1545
1546SC/03 Eximstats: allow any combination of xls, txt, and html output.
1547
1548SC/04 Eximstats: fixed display of large numbers with -nvr option
1549
1550SC/05 Eximstats: fixed merging of reports with empty tables.
1551
1552SC/06 Eximstats: added the -include_original_destination flag
1553
1554SC/07 Eximstats: removed tabs and trailing whitespace.
1555
1005d00e
TK
1556TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1557
1558TK/06 MBOX spool code: Add real "From " MBOX separator line
1559 so the .eml file is really in mbox format (even though
1560 most programs do not really care). Patch from Alex Miller.
1561
1562TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1563 The latter is generated from $received_to and is only set if the
1564 message has one envelope recipient. SA can use these headers,
1565 obviously out-of-the-box. Patch from Alex Miller.
1566
9b4768fa
PH
1567PH/08 The ${def test on a variable was returning false if the variable's
1568 value was "0", contrary to what the specification has always said!
1569 The result should be true unless the variable is empty.
1570
1571PH/09 The syntax error of a character other than { following "${if
1572 def:variable_name" (after optional whitespace) was not being diagnosed.
1573 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1574 accidental colon was present, for example, could give incorrect results.
1575
0d7eb84a
PH
1576PH/10 Tidied the code in a number of places where the st_size field of a stat()
1577 result is used (not including appendfile, where other changes are about
1578 to be made).
1579
1580PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1581 This involved changing a lot of size variables from int to off_t. It
1582 should work with maildirs and everything.
1583
40727bee
TK
1584TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1585 spamd dying while we are connected to it.
1586
554d2369
TF
1587TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1588 <jgh@wizmail.org>
1589
1f922db1
PH
1590PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1591 function for BDB 4.3.
1592
ef213c3b
PH
1593PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1594
8ac170f3
PH
1595PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1596 the sources for PCRE have been re-arranged and more files are now
1597 involved.
1598
b1c749bb
PH
1599PH/15 The code I had for printing potentially long long variables in PH/11
1600 above was not the best (it lost precision). The length of off_t variables
1601 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1602 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1603 to be "long long int" or "long int". This is needed for the internal
1604 formatting function string_vformat().
b1c749bb 1605
4aac9b49
PH
1606PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1607 the configuration file to be ":syslog", then the script "guesses" where
1608 the logs files are, rather than using the compiled in default. In our
1609 case the guess is not the same as the compiled default, so the script
1610 suddenly stopped working when I started to use syslog. The patch checks
1611 to see if log_file_path is "". If so, it attempts to read it from exim
1612 with no configuration file to get the compiled in version, before it
1613 falls back to the previous guessing code."
1614
294520c8
TK
1615TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1616 implementing BATV in an Exim configuration. See NewStuff for the gory
1617 details.
1618
5bd022fe
PH
1619PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1620 Makefile that are specific to HP-UX.
1621
90e9ce59
PH
1622PH/18 If the "use_postmaster" option was set for a recipient callout together
1623 with the "random" option, the postmaster address was used as the MAIL
1624 FROM address for the random test, but not for the subsequent recipient
1625 test. It is now used for both.
1626
5ea81592
PH
1627PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1628 patch removes a few documentation additions to RFC 3028, because the
1629 latest draft now contains them. It adds the new en;ascii-case comparator
1630 and a new error check for 8bit text in MIME parts. Comparator and
1631 require names are now matched exactly. I enabled the subaddress
1632 extension, but it is not well tested yet (read: it works for me)."
1633
c6c2dc1d
PH
1634PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1635 rework some of the code of TK/09 above to avoid the hardwired use of
1636 "%lld" and "long long". Replaced the call to snprintf() with a call to
1637 string_vformat().
1638
fffffe4c
PH
1639PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1640 records point to non-existent hosts", "retry timeout exceeded", and
1641 "retry time not reached for any host after a long failure period".
ca02eafb 1642
9a26b6b2
PH
1643PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1644 experimental DomainKeys support:
1645
1646 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1647 (2) On an error such as an illegally used "control", the wrong name for
1648 the control was given.
1649
1650 These problems did NOT occur unless DomainKeys support was compiled.
1651
4aee0225
PH
1652PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1653
32d668a5
PH
1654PH/24 Added ${if match_ip condition.
1655
8187c3f3
PH
1656PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1657 databases so that it will be absolutely obvious if a crash occurs in the
1658 DB library. This is a regular occurrence (often caused by mis-matched
1659 db.h files).
1660
ff790e47 1661PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1662 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1663 picked up on a user's system that detects such things. There doesn't seem
1664 to be a gcc warning option for this - only an attribute that has to be
1665 put on the function's prototype. It seems that in Fedora Core 4 they have
1666 set this on a number of new functions. No doubt there will be more in due
1667 course.
ff790e47 1668
5417f6d1
PH
1669PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1670 specify a transport. However, if an address that was verified by such a
1671 router was the subject of a callout, Exim crashed because it tried to
1672 read the rcpt_include_affixes from the non-existent transport. Now it
1673 just assumes that the setting of that option is false. This bug was
1674 introduced by 4.51/PH/31.
1675
59cf8544
PH
1676PH/28 Changed -d+all to exclude +memory, because that information is very
1677 rarely of interest, but it makes the output a lot bigger. People tend to
1678 do -d+all out of habit.
1679
e7ad8a65
PH
1680PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1681 code in os-type was giving problems when libc.so lives in lib64, like on
1682 x86_64 Fedora Core.
1683
ade42478
PH
1684PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1685 aren't the modern standard, and it seems that some systems' include files
1686 don't always have them. Exim was already checking for some of the newer
1687 ones like T_AAAA, and defining it itself. I've added checks for all the
1688 record types that Exim uses.
1689
182ad5cf
PH
1690PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1691 not automatically generating a new one, as it is supposed to. This
1692 prevented TLS from working. If the file did exist, but contained invalid
1693 data, a new version was generated, as expected. It was only the case of a
1694 non-existent file that was broken.
1695
b0d9fc80
TK
1696TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1697 with a change in libdomainkeys > 0.64.
1698
1699TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1700 from DNS. If the selector record carries the flag, it now has
1701 precedence over the domain-wide flag.
1702
1703TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1704
47c7a64a
PH
1705PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1706 the use of a port name that isn't defined in /etc/services) occurred, the
1707 message was deferred as in a normal delivery, and thus remained on the
1708 spool, instead of being failed because of the mua_wrapper setting. This
1709 is now fixed, and I tidied up some of the mua_wrapper messages at the
1710 same time.
1711
a388bce4
SC
1712SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1713 the messages in a hash of arrays rather than using individual hashes.
1714 This is a bit cleaner and results in dramatic memory savings, albeit
1715 at a slight CPU cost.
1716
1717SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1718 as requested by Marc Sherman.
1719
1720SC/10 Eximstats: added histograms for user specified patterns as requested
1721 by Marc Sherman.
1722
0793e4ed
SC
1723SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1724
c58b88df
PH
1725PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1726 fopen() in the content-scanning modules that did not already have it.
1727
e7ad8a65 1728
7982096b
PH
1729Exim version 4.51
1730-----------------
1731
1a46a8c5
PH
1732TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1733 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1734
2f079f46 1735TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1736
1737TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1738
1739PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1740 to test Sieve filters that use "vacation".
1741
1742PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1743 that changes the way the GnuTLS parameters are stored in the cache file.
1744 The new format can be generated externally. For backward compatibility,
1745 if the data in the cache doesn't make sense, Exim assumes it has read an
1746 old-format file, and it generates new data and writes a new file. This
1747 means that you can't go back to an older release without removing the
1748 file.
1749
1750PH/03 A redirect router that has both "unseen" and "one_time" set does not
1751 work if there are any delivery delays because "one_time" forces the
1752 parent to be marked "delivered", so its unseen clone is never tried
1753 again. For this reason, Exim now forbids the simultaneous setting of
1754 these two options.
1755
1756PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1757 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1758 entry if you want to know the details. The fix, however, neglected to
1759 consider the case when local delivery batching is involved. The test for
1760 "previously delivered" was not happening when checking to see if an
1761 address could be batched with a previous (undelivered) one; under
1762 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1763 address.
1a46a8c5
PH
1764
1765PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1766 in its include files, and this causes problems building Exim.
1767
1768PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1769 header_syntax) but Exim was just ignoring anything given after a slash.
1770 In particular, this caused confusion with an attempt to use "verify =
1771 reverse_host_lookup/defer_ok". An error is now given when options are
1772 supplied for verify items that do not have them. (Maybe reverse_host_
1773 lookup should have a defer_ok option, but that's a different point.)
1774
1775PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1776 defined by RFC 821) to 2048, because there were problems with some AUTH
1777 commands, and RFC 1869 says the size should be increased for extended
1778 SMTP commands that take arguments.
1779
1780PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1781 Finch).
1782
1783PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1784 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1785
49c2d5ea
PH
1786PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1787 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1788 whatever). Otherwise the password may appear in the log. Following change
1789 PH/42 below, there is no longer a chance of it appearing in a bounce
1790 message.
49c2d5ea 1791
bf759a8b
PH
1792PH/11 Installed exipick version 20050225.0 from John Jetmore.
1793
83364d30
PH
1794PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1795 of its addresses was ever tried. (Bugzilla bug #2.)
1796
7999bbd7
PH
1797PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1798 the result incorrectly in the debug output. (It correctly added a newline
1799 to what was transported.)
1800
7dbf77c9
PH
1801TF/01 Added $received_time.
1802
74e0617f
PH
1803PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1804 commented out examples of how to interface to a virus scanner and to
1805 SpamAssassin. Also added commented examples of av_scanner and
1806 spamd_address settings.
1807
2f079f46
PH
1808PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1809 and controls are allowed in which ACLs. There were a couple of minor
1810 errors. Some of the entries in the conditions table (which is a table of
1811 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1812 negation of where the condition IS allowed.
1813
8c841523
PH
1814PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
1815
7766a4f0
PH
1816PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
1817 header file does not have a version number, so I've had to invent a new
1818 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
1819 API. The code is untested by me (my Linux distribution still has 0.3.2 of
1820 radiusclient), but it was contributed by a Radius user.
1821
8b417f2c
PH
1822PH/18 Installed Lars Mainka's patch for the support of CRL collections in
1823 files or directories, for OpenSSL.
1824
901f42cb
PH
1825PH/19 When an Exim process that is running as root has to create an Exim log
1826 file, it does so in a subprocess that runs as exim:exim so as to get the
1827 ownership right at creation (otherwise, other Exim processes might see
1828 the file with the wrong ownership). There was no test for failure of this
1829 fork() call, which would lead to the process getting stuck as it waited
1830 for a non-existent subprocess. Forks do occasionally fail when resources
1831 run out. I reviewed all the other calls to fork(); they all seem to check
1832 for failure.
1833
f9b9210e
PH
1834PH/20 When checking for unexpected SMTP input at connect time (before writing
1835 the banner), Exim was not dealing correctly with a non-positive return
1836 from the read() function. If the client had disconnected by this time,
1837 the result was a log entry for a synchronization error with an empty
1838 string after "input=" when read() returned zero. If read() returned -1
1839 (an event I could not check), uninitialized data bytes were printed.
1840 There were reports of junk text (parts of files, etc) appearing after
1841 "input=".
1842
54cdb463
PH
1843PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
1844
cf00dad6
PH
1845PH/22 Added support for macro redefinition, and (re)definition in between
1846 driver and ACL definitions.
1847
acb1b346
PH
1848PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
1849 forgetting to use the resulting value; it was using the unexpanded value.
1850
c5ddb310
PH
1851PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
1852 hadn't been configured. The fix is from Juergen Kreileder, who
1853 understands it better than I do:
1854
1855 "Here's what I see happening with three configured cyrus_sasl
1856 authenticators configured (plain, login, cram-md5):
1857
1858 On startup auth_cyrus_sasl_init() gets called for each of these.
1859 This means three calls to sasl_listmech() without a specified mech_list.
1860 => SASL tests which mechs of all available mechs actually work
1861 => three warnings about OTP not working
1862 => the returned list contains: plain, login, cram-md5, digest-md5, ...
1863
1864 With the patch, sasl_listmech() also gets called three times. But now
1865 SASL's mech_list option is set to the server_mech specified in the the
1866 authenticator. Or in other words, the answer from sasl_listmech()
1867 gets limited to just the mech you're testing for (which is different
1868 for each call.)
1869 => the return list contains just 'plain' or 'login', 'cram-md5' or
1870 nothing depending on the value of ob->server_mech.
1871
1872 I've just tested the patch: Authentication still works fine,
1873 unavailable mechs specified in the exim configuration are still
1874 caught, and the auth.log warnings about OTP are gone."
1875
31619da6
PH
1876PH/25 When debugging is enabled, the contents of the command line are added
1877 to the debugging output, even when log_selector=+arguments is not
1878 specified.
1879
bebaf0fc
PH
1880PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
1881 answer is "GNU", and only if the return is "GNU/something" is the answer
1882 "Linux".
1883
475fe28a
PH
1884PH/27 $acl_verify_message is now set immediately after the failure of a
1885 verification in an ACL, and so is available in subsequent modifiers. In
1886 particular, the message can be preserved by coding like this:
1887
1888 warn !verify = sender
1889 set acl_m0 = $acl_verify_message
1890
1891 Previously, $acl_verify_message was set only while expanding "message"
1892 and "log_message" when a very denied access.
1893
7e8bec7a
PH
1894PH/28 Modified OS/os.c-Linux with
1895
1896 -#ifndef OS_LOAD_AVERAGE
1897 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
1898
1899 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
1900 nomenclature these days.)
1901
e4a89c47
PH
1902PH/29 Installed patch from the Sieve maintainer that adds the options
1903 sieve_useraddress and sieve_subaddress to the redirect router.
1904
5ca2a9a1
PH
1905PH/30 In these circumstances:
1906 . Two addresses routed to the same list of hosts;
1907 . First host does not offer TLS;
1908 . First host accepts first address;
1909 . First host gives temporary error to second address;
1910 . Second host offers TLS and a TLS session is established;
1911 . Second host accepts second address.
1912 Exim incorrectly logged both deliveries with the TLS parameters (cipher
1913 and peerdn, if requested) that were in fact used only for the second
1914 address.
7e8bec7a 1915
c688b954
PH
1916PH/31 When doing a callout as part of verifying an address, Exim was not paying
1917 attention to any local part prefix or suffix that was matched by the
1918 router that accepted the address. It now behaves in the same way as it
1919 does for delivery: the affixes are removed from the local part unless
1920 rcpt_include_affixes is set on the transport.
1921
fed77020
PH
1922PH/32 Add the sender address, as F=<...>, to the log line when logging a
1923 timeout during the DATA phase of an incoming message.
1924
7fe1560f
PH
1925PH/33 Sieve envelope tests were broken for match types other than :is. I have
1926 applied a patch sanctioned by the Sieve maintainer.
c688b954 1927
ebb6e6d5
PH
1928PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
1929 the uid or gid is negative. A case of a negative gid caused this to be
1930 noticed. The fix allows for either to be negative.
1931
9c4e8f60
PH
1932PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
1933 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
1934 overlooked.
1935
1936PH/36 The change PH/12 above was broken. Fixed it.
1937
d7174846
PH
1938PH/37 Exim used to check for duplicate addresses in the middle of routing, on
1939 the grounds that routing the same address twice would always produce the
1940 same answer. This might have been true once, but it is certainly no
1941 longer true now. Routing a child address may depend on the previous
1942 routing that produced that child. Some complicated redirection strategies
1943 went wrong when messages had multiple recipients, and made Exim's
1944 behaviour dependent on the order in which the addresses were given.
1945
1946 I have moved the duplicate checking until after the routing is complete.
1947 Exim scans the addresses that are assigned to local and remote
1948 transports, and removes any duplicates. This means that more work will be
1949 done, as duplicates will always all be routed, but duplicates are
1950 presumably rare, so I don't expect this is of any significance.
1951
1952 For deliveries to pipes, files, and autoreplies, the duplicate checking
1953 still happens during the routing process, since they are not going to be
1954 routed further.
1955
cfe75fc3
PH
1956PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
1957 It corrects a timeout issue with spamd. This is Ian's comment: "The
1958 background is that sometimes spamd either never reads data from a
1959 connection it has accepted, or it never writes response data. The exiscan
1960 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
1961 blindly assumes that writes won't block so it may never time out."
1962
be22d70e
PH
1963PH/39 Allow G after quota size as well as K and M.
1964
0612b098
PH
1965PH/40 The value set for $authenticated_id in an authenticator may not contain
1966 binary zeroes or newlines because the value is written to log lines and
1967 to spool files. There was no check on this. Now the value is run through
1968 the string_printing() function so that such characters are converted to
1969 printable escape sequences.
1970
2e0c1448
PH
1971PH/41 $message_linecount is a new variable that contains the total number of
1972 lines in the message. Compare $body_linecount, which is the count for the
1973 body only.
1974
447d236c
PH
1975PH/42 Exim no longer gives details of delivery errors for specific addresses in
1976 bounce and delay warning messages, except in certain special cases, which
1977 are as follows:
1978
1979 (a) An SMTP error message from a remote host;
1980 (b) A message specified in a :fail: redirection;
1981 (c) A message specified in a "fail" command in a system filter;
1982 (d) A message specified in a FAIL return from the queryprogram router;
1983 (e) A message specified by the cannot_route_message router option.
1984
1985 In these cases only, Exim does include the error details in bounce and
1986 warning messages. There are also a few cases where bland messages such
1987 as "unrouteable address" or "local delivery error" are given.
1988
d20976dc
PH
1989PH/43 $value is now also set for the "else" part of a ${run expansion.
1990
f656d135
PH
1991PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
1992 being worked on, but at least Exim now implements the latest version to
1993 play with."
1994
2e2a30b4
PH
1995PH/45 In a pipe transport, although a timeout while waiting for the pipe
1996 process to complete was treated as a delivery failure, a timeout while
1997 writing the message to the pipe was logged, but erroneously treated as a
1998 successful delivery. Such timeouts include transport filter timeouts. For
1999 consistency with the overall process timeout, these timeouts are now
2000 treated as errors, giving rise to delivery failures by default. However,
2001 there is now a new Boolean option for the pipe transport called
2002 timeout_defer, which, if set TRUE, converts the failures into defers for
2003 both kinds of timeout. A transport filter timeout is now identified in
2004 the log output.
2005
9176e9f0
PH
2006PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2007 systems where "make" and "gmake" are different, calling "gmake" at top
2008 level broke things. I've arranged for the value of $(MAKE) to be passed
2009 from the Makefile to this script so that it can call the same version of
2010 "make".
2011
7982096b 2012
bbe902f0
PH
2013A note about Exim versions 4.44 and 4.50
2014----------------------------------------
2015
2016Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2017changes of various kinds. As a consequence, a big documentation update was
2018needed. This delayed the release for rather longer than seemed good, especially
2019in the light of a couple of (minor) security issues. Therefore, the changes
2020that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2021release. So 4.44 and 4.50 are in effect two different branches that both start
2022from 4.43.
2023
2024I have left the 4.50 change log unchanged; it contains all the changes since
20254.43. The change log for 4.44 is below; many of its items are identical to
2026those for 4.50. This seems to be the most sensible way to preserve the
2027historical information.
2028
2029
f7b63901 2030Exim version 4.50
495ae4b0
PH
2031-----------------
2032
5fe762f6
PH
2033 1. Minor wording change to the doc/README.SIEVE file.
2034
139059f6 2035 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2036 computation of the current number of files was incorrect.
495ae4b0 2037
7086e875
PH
2038 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2039 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2040 place.
2041
35af9f61
PH
2042 4. Give more explanation in the error message when the command for a transport
2043 filter fails to execute.
2044
b668c215
PH
2045 5. There are several places where Exim runs a non-Exim command in a
2046 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2047 was being done only for the command run by the queryprogram router. It is
2048 now done for all such subprocesses. The other cases are: ${run, transport
2049 filters, and the commands run by the lmtp and pipe transports.
2050
a494b1e1
PH
2051 6. Added CONFIGURE_GROUP build-time option.
2052
2053 7. Some older OS have a limit of 256 on the maximum number of file
2054 descriptors. Exim was using setrlimit() to set 1000 as a large value
2055 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2056 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2057
c5fcb476
PH
2058 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2059 was an oversight, and furthermore, ever since the addition of extra
2060 controls (e.g. 4.43/32), the checks on when to allow different forms of
2061 "control" were broken. There should now be diagnostics for all cases when a
2062 control that does not make sense is encountered.
2063
69358f02
PH
2064 9. Added the /retain_sender option to "control=submission".
2065
5be20824
PH
206610. $recipients is now available in the predata ACL (oversight).
2067
eb2c0248
PH
206811. Tidy the search cache before the fork to do a delivery from a message
2069 received from the command line. Otherwise the child will trigger a lookup
2070 failure and thereby defer the delivery if it tries to use (for example) a
2071 cached ldap connection that the parent has called unbind on.
2072
2a3eea10
PH
207312. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2074 of $address_data from the recipient verification was clobbered by the
2075 sender verification.
2076
207713. The value of address_data from a sender verification is now available in
2078 $sender_address_data in subsequent conditions in the ACL statement.
2079
23c7ff99
PH
208014. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2081
4deaf07d
PH
208215. Added a new option "connect=<time>" to callout options, to set a different
2083 connection timeout.
2084
926e1192
PH
208516. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2086 was its contents. (It was OK if the option was not defined at all.)
2087
650edc6f
PH
208817. A "Completed" log line is now written for messages that are removed from
2089 the spool by the -Mrm option.
2090
2c7db3f5
PH
209118. New variables $sender_verify_failure and $recipient_verify_failure contain
2092 information about exactly what failed.
2093
3d235903
PH
209419. Added -dd to debug only the daemon process.
2095
7c7ad977
PH
209620. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2097 handles timeouts, both on the server side and network timeouts. Renamed the
2098 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2099
981756db
PH
210021. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2101 It is now set to "smtps".
2102
d4eb88df
PH
210322. $host_address is now set to the target address during the checking of
2104 ignore_target_hosts.
2105
210623. When checking ignore_target_hosts for an ipliteral router, no host name was
2107 being passed; this would have caused $sender_host_name to have been used if
2108 matching the list had actually called for a host name (not very likely,
2109 since this list is usually IP addresses). A host name is now passed as
2110 "[x.x.x.x]".
2111
7d468ab8
PH
211224. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2113 code that specifies a non-restarting handler (typically sigaction() in
2114 modern systems) in an attempt to fix a rare and obscure crash bug.
2115
211625. Narrowed the window for a race in the daemon that could cause it to ignore
2117 SIGCHLD signals. This is not a major problem, because they are used only to
2118 wake it up if nothing else does.
2119
62c0818f
PH
212026. A malformed maildirsize file could cause Exim to calculate negative values
2121 for the mailbox size or file count. Odd effects could occur as a result.
2122 The maildirsize information is now recalculated if the size or filecount
2123 end up negative.
2124
26034054
PH
212527. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2126 support for a long time. Removed HAVE_SYS_VFS_H.
2127
af66f652
PH
212828. Installed the latest version of exipick from John Jetmore.
2129
90af77f4
PH
213029. In an address list, if the pattern was not a regular expression, an empty
2131 subject address (from a bounce message) matched only if the pattern was an
2132 empty string. Non-empty patterns were not even tested. This was the wrong
2133 because it is perfectly reasonable to use an empty address as part of a
2134 database query. An empty address is now tested by patterns that are
2135 lookups. However, all the other forms of pattern expect the subject to
2136 contain a local part and a domain, and therefore, for them, an empty
2137 address still always fails if the pattern is not itself empty.
2138
d8ef3577
PH
213930. Exim went into a mad DNS loop when attempting to do a callout where the
2140 host was specified on an smtp transport, and looking it up yielded more
2141 than one IP address.
2142
5cb8cbc6
PH
214331. Re-factored the code for checking spool and log partition space into a
2144 function that finds that data and another that does the check. The former
2145 is then used to implement four new variables: $spool_space, $log_space,
2146 $spool_inodes, and $log_inodes.
2147
14702f5b
PH
214832. The RFC2047 encoding function was originally intended for short strings
2149 such as real names; it was not keeping to the 75-character limit for
2150 encoded words that the RFC imposes. It now respects the limit, and
2151 generates multiple encoded words if necessary. To be on the safe side, I
2152 have increased the buffer size for the ${rfc2047: expansion operator from
2153 1024 to 2048 bytes.
2154
063b1e99
PH
215533. It is now permitted to omit both strings after an "if" condition; if the
2156 condition is true, the result is "true". As before, when the second string
2157 is omitted, a false condition yields an empty string. This makes it less
2158 cumbersome to write custom ACL and router conditions.
2159
652e1b65
PH
216034. Failure to deliver a bounce message always caused it to be frozen, even if
2161 there was an errors_to setting on the router. The errors_to setting is now
2162 respected.
2163
6f0c9a4f
PH
216435. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2165 canonical form (fully expanded) before being placed in
2166 $sender_host_address.
2167
33397d19
PH
216836. The table in the code that translates DNS record types into text (T_A to
2169 "A" for instance) was missing entries for NS and CNAME. It is just possible
2170 that this could have caused confusion if both these types were looked up
2171 for the same domain, because the text type is used as part of Exim's
2172 per-process caching. But the chance of anyone hitting this buglet seems
2173 very small.
2174
7bb56e1f
PH
217537. The dnsdb lookup has been extended in a number of ways.
2176
2177 (1) There is a new type, "zns", which walks up the domain tree until it
2178 finds some nameserver records. It should be used with care.
2179
ea3bc19b
PH
2180 (2) There is a new type, "mxh", which is like "mx" except that it returns
2181 just the host names, not the priorities.
2182
2183 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2184 looked up. The behaviour when one of the lookups defers can be
2185 controlled by a keyword.
7bb56e1f 2186
ea3bc19b 2187 (4) It is now possible to specify the separator character for use when
7bb56e1f 2188 multiple records are returned.
33397d19 2189
0bcb2a0e
PH
219038. The dnslists ACL condition has been extended: it is now possible to supply
2191 a list of IP addresses and/or domains to be looked up in a particular DNS
2192 domain.
2193
2ac0e484
PH
219439. Added log_selector=+queue_time_overall.
2195
4e1fde53
PH
219640. When running the queue in the test harness, wait just a tad after forking a
2197 delivery process, to get repeatability of debugging output.
2198
de365ded
PH
219941. Include certificate and key file names in error message when GnuTLS fails
2200 to set them up, because the GnuTLS error message doesn't include the name
2201 of the failing file when there is a problem reading it.
2202
f05da2e8
PH
220342. Allow both -bf and -bF in the same test run.
2204
d6453af2
PH
220543. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2206
f7b63901
PH
220744. The "Exiscan patch" is now merged into the mainline Exim source.
2208
220945. Sometimes the final signoff response after QUIT could fail to get
2210 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2211 < 0 before doing a fflush(). This bug looks as though it goes back to the
2212 introduction of TLS in release 3.20, but "sometimes" must have been rare
2213 because the tests only now provoked it.
2214
a444213a
PH
221546. Reset the locale to "C" after calling embedded Perl, in case it was changed
2216 (this can affect the format of dates).
2217
0ec020ea
PH
221847. exim_tidydb, when checking for the continued existence of a message for
2219 which it has found a message-specific retry record, was not finding
2220 messages that were in split spool directories. Consequently, it was
2221 deleting retry records that should have stayed in existence.
2222
b1206957
PH
222348. Steve fixed some bugs in eximstats.
2224
222549. The SPA authentication driver was not abandoning authentication and moving
2226 on to the next authenticator when an expansion was forced to fail,
2227 contradicting the general specification for all authenticators. Instead it
2228 was generating a temporary error. It now behaves as specified.
2229
26dd5a95
PH
223050. The default ordering of permitted cipher suites for GnuTLS was pessimal
2231 (the order specifies the preference for clients). The order is now AES256,
2232 AES128, 3DES, ARCFOUR128.
2233
343b2385
PH
223451. Small patch to Sieve code - explicitly set From: when generating an
2235 autoreply.
2236
1c5466b9
PH
223752. Exim crashed if a remote delivery caused a very long error message to be
2238 recorded - for instance if somebody sent an entire SpamAssassin report back
2239 as a large number of 550 error lines. This bug was coincidentally fixed by
2240 increasing the size of one of Exim's internal buffers (big_buffer) that
2241 happened as part of the Exiscan merge. However, to be on the safe side, I
2242 have made the code more robust (and fixed the comments that describe what
2243 is going on).
2244
55ee9ee3
PH
224553. Now that there can be additional text after "Completed" in log lines (if
2246 the queue_time_overall log selector is set), a one-byte patch to exigrep
2247 was needed to allow it to recognize "Completed" as not the last thing in
2248 the line.
2249
d38f8232
PH
225054. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2251 patch that reportedly fixes this has been added. I am not expert enough to
2252 create a test for it. This is what the patch creator wrote:
2253
2254 "I found a little strange behaviour of ldap code when working with
2255 Windows 2003 AD Domain, where users was placed in more than one
2256 Organization Units. When I tried to give exim partial DN, the exit code
2257 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2258 But simultaneously result of request was absolutely normal ldap result,
2259 so I produce this patch..."
2260
3295e65b
PH
2261 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2262 REFERENCE, so I have modified the code to exclude the patch when that macro
2263 is not defined.
2264
7102e136
PH
226555. Some experimental protocols are using DNS PTR records for new purposes. The
2266 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2267 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2268 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2269 CAN-2005-0021
7102e136 2270
3ca0ba97
PH
227156. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2272
c2bcbe20
PH
227357. Double the size of the debug message buffer (to 2048) so that more of very
2274 long debug lines gets shown.
2275
18ce445d
PH
227658. The exicyclog utility now does better if the number of log files to keep
2277 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2278
1f5b4c3d
PH
227959. Two changes related to the smtp_active_hostname option:
2280
2281 (1) $smtp_active_hostname is now available as a variable.
2282 (2) The default for smtp_banner uses $smtp_active_hostname instead
2283 of $primary_hostname.
2284
b975ba52
PH
228560. The host_aton() function is supposed to be passed a string that is known
2286 to be a valid IP address. However, in the case of IPv6 addresses, it was
2287 not checking this. This is a hostage to fortune. Exim now panics and dies
2288 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2289 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2290 components; fortuitously, this particular loophole had already been fixed
2291 by change 4.50/55 above.
2292
2293 If there are any other similar loopholes, the new check in host_aton()
2294 itself should stop them being exploited. The report I received stated that
2295 data on the command line could provoke the exploit when Exim was running as
2296 exim, but did not say which command line option was involved. All I could
2297 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2298 running as the user.
ea3a6f44 2299 CAN-2005-0021
85b87bc2
PH
2300
230161. There was a buffer overflow vulnerability in the SPA authentication code
2302 (which came originally from the Samba project). I have added a test to the
2303 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2304 CAN-2005-0022
b975ba52 2305
17ffcae7
PH
230662. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2307 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2308
d95f9fdb
PH
230963. The daemon start-up calls getloadavg() while still root for those OS that
2310 need the first call to be done as root, but it missed one case: when
2311 deliver_queue_load_max is set with deliver_drop_privilege. This is
2312 necessary for the benefit of the queue runner, because there is no re-exec
2313 when deliver_drop_privilege is set.
2314
86b8287f
PH
231564. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2316 This has been fixed.
2317
60dc5e56
PH
231865. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2319 was in use, was not putting the data itself into the right store pool;
2320 consequently, it could be overwritten for a subsequent message in the same
2321 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2322 the caching.)
2323
533244af
PH
232466. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2325
a5a28604
PH
232667. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2327 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2328 the function were treating the return as a boolean value, which happened to
2329 work because 0=false and not-0=true, but is not correct code.
2330
7e634d24
PH
233168. The host_aton() function was not handling scoped IPv6 addresses (those
2332 with, for example, "%eth0" on the end) correctly.
2333
3e11c26b
PH
233469. Fixed some compiler warnings in acl.c for the bitmaps specified with
2335 negated items (that is, ~something) in unsigned ints. Some compilers
2336 apparently mutter when there is no cast.
2337
6729cf78
PH
233870. If an address verification called from an ACL failed, and did not produce a
2339 user-specific message (i.e. there was only a "system" message), nothing was
2340 put in $acl_verify_message. In this situation, it now puts the system
2341 message there.
2342
00f00ca5
PH
234371. Change 4.23/11 added synchronization checking at the start of an SMTP
2344 session; change 4.31/43 added the unwanted input to the log line - except
2345 that it did not do this in the start of session case. It now does.
2346
c9bdd01c
PH
234772. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2348 This is wrong and can cause the other end to generate a synchronization
2349 error if it is another Exim or anything else that does the synchronization
2350 check. A QUIT command is no longer sent after a timeout.
2351
d43194df
PH
235273. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2353 during host lookups.
2354
fe5b5d0b
PH
235574. The defer_ok option of callout verification was not working if it was used
2356 when verifying addresses in header lines, that is, for this case:
2357
2358 verify = header_sender/callout=defer_ok
2359
76a2d7ba
PH
236075. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2361 those file descriptors could be used for SMTP connections. If anything
2362 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2363 could be sent to the SMTP client, causing chaos. The daemon now opens
2364 stdin, stdout, and stderr to /dev/null when it puts itself into the
2365 background.
2366
236776. Arrange for output from Perl's "warn" command to be written to Exim's main
2368 log by default. The user can override this with suitable Perl magic.
2369
04f7d5b9
PH
237077. The use of log_message on a "discard" ACL verb, which is supposed to add to
2371 the log message when discard triggers, was not working for the DATA ACL or
2372 for the non-SMTP ACL.
2373
bc60667e
PH
237478. Error message wording change in sieve.c.
2375
bb6e88ff
PH
237679. If smtp_accept_max_per_host was set, the number of connections could be
2377 restricted to fewer than expected, because the daemon was trying to set up
2378 a new connection before checking whether the processes handling previous
2379 connections had finished. The check for completed processes is now done
2380 earlier. On busy systems, this bug wouldn't be noticed because something
2381 else would have woken the daemon, and it would have reaped the completed
2382 process earlier.
2383
1e70f85b
PH
238480. If a message was submitted locally by a user whose login name contained one
2385 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2386 It caused a spool format error. I have fixed the spool reading code. A
2387 related problem was that the "from" clause in the Received: line became
2388 illegal because of the space(s). It is now covered by ${quote_local_part.
2389
239081. Included the latest eximstats from Steve (adds average sizes to HTML Top
2391 tables).
2392
4e01f9d6
PH
239382. Updated OS/Makefile-AIX as per message from Mike Meredith.
2394
1ee1cef2
PH
239583. Patch from Sieve maintainer to fix unterminated string problem in
2396 "vacation" handling.
2397
6e2b4ccc
PH
239884. Some minor changes to the Linux configuration files to help with other
2399 OS variants using glibc.
2400
8e669ac1
PH
240185. One more patch for Sieve to update vacation handling to latest spec.
2402
495ae4b0 2403
bbe902f0
PH
2404----------------------------------------------------
2405See the note above about the 4.44 and 4.50 releases.
2406----------------------------------------------------
2407
2408
2409Exim version 4.44
2410-----------------
2411
2412 1. Change 4.43/35 introduced a bug that caused file counts to be
2413 incorrectly computed when quota_filecount was set in an appendfile
2414 transport
2415
2416 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2417 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2418 place.
2419
2420 3. Give more explanation in the error message when the command for a transport
2421 filter fails to execute.
2422
2423 4. There are several places where Exim runs a non-Exim command in a
2424 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2425 was being done only for the command run by the queryprogram router. It is
2426 now done for all such subprocesses. The other cases are: ${run, transport
2427 filters, and the commands run by the lmtp and pipe transports.
2428
2429 5. Some older OS have a limit of 256 on the maximum number of file
2430 descriptors. Exim was using setrlimit() to set 1000 as a large value
2431 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2432 systems. I've change it so that if it can't get 1000, it tries for 256.
2433
2434 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2435 was an oversight, and furthermore, ever since the addition of extra
2436 controls (e.g. 4.43/32), the checks on when to allow different forms of
2437 "control" were broken. There should now be diagnostics for all cases when a
2438 control that does not make sense is encountered.
2439
2440 7. $recipients is now available in the predata ACL (oversight).
2441
2442 8. Tidy the search cache before the fork to do a delivery from a message
2443 received from the command line. Otherwise the child will trigger a lookup
2444 failure and thereby defer the delivery if it tries to use (for example) a
2445 cached ldap connection that the parent has called unbind on.
2446
2447 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2448 of $address_data from the recipient verification was clobbered by the
2449 sender verification.
2450
245110. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2452 was its contents. (It was OK if the option was not defined at all.)
2453
245411. A "Completed" log line is now written for messages that are removed from
2455 the spool by the -Mrm option.
2456
245712. $host_address is now set to the target address during the checking of
2458 ignore_target_hosts.
2459
246013. When checking ignore_target_hosts for an ipliteral router, no host name was
2461 being passed; this would have caused $sender_host_name to have been used if
2462 matching the list had actually called for a host name (not very likely,
2463 since this list is usually IP addresses). A host name is now passed as
2464 "[x.x.x.x]".
2465
246614. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2467 code that specifies a non-restarting handler (typically sigaction() in
2468 modern systems) in an attempt to fix a rare and obscure crash bug.
2469
247015. Narrowed the window for a race in the daemon that could cause it to ignore
2471 SIGCHLD signals. This is not a major problem, because they are used only to
2472 wake it up if nothing else does.
2473
247416. A malformed maildirsize file could cause Exim to calculate negative values
2475 for the mailbox size or file count. Odd effects could occur as a result.
2476 The maildirsize information is now recalculated if the size or filecount
2477 end up negative.
2478
247917. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2480 support for a long time. Removed HAVE_SYS_VFS_H.
2481
ea3a6f44 248218. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2483
248419. Allow an empty sender to be matched against a lookup in an address list.
2485 Previously the only cases considered were a regular expression, or an
2486 empty pattern.
2487
248820. Exim went into a mad DNS lookup loop when doing a callout where the
2489 host was specified on the transport, if the DNS lookup yielded more than
2490 one IP address.
2491
ea3a6f44
NM
249221. The RFC2047 encoding function was originally intended for short strings
2493 such as real names; it was not keeping to the 75-character limit for
2494 encoded words that the RFC imposes. It now respects the limit, and
2495 generates multiple encoded words if necessary. To be on the safe side, I
2496 have increased the buffer size for the ${rfc2047: expansion operator from
2497 1024 to 2048 bytes.
bbe902f0 2498
ea3a6f44
NM
249922. Failure to deliver a bounce message always caused it to be frozen, even if
2500 there was an errors_to setting on the router. The errors_to setting is now
2501 respected.
bbe902f0
PH
2502
250323. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2504 canonical form (fully expanded) before being placed in
2505 $sender_host_address.
2506
250724. Updated eximstats to version 1.33
2508
ea3a6f44
NM
250925. Include certificate and key file names in error message when GnuTLS fails
2510 to set them up, because the GnuTLS error message doesn't include the name
2511 of the failing file when there is a problem reading it.
bbe902f0
PH
2512
251326. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2514 As per change 25.
bbe902f0 2515
ea3a6f44
NM
251627. Reset the locale to "C" after calling embedded Perl, in case it was changed
2517 (this can affect the format of dates).
bbe902f0 2518
ea3a6f44
NM
251928. exim_tidydb, when checking for the continued existence of a message for
2520 which it has found a message-specific retry record, was not finding
2521 messages that were in split spool directories. Consequently, it was
2522 deleting retry records that should have stayed in existence.
bbe902f0
PH
2523
252429. eximstats updated to version 1.35
2525 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2526 1.35 - bugfix such that pie charts by volume are generated correctly
2527
ea3a6f44
NM
252830. The SPA authentication driver was not abandoning authentication and moving
2529 on to the next authenticator when an expansion was forced to fail,
2530 contradicting the general specification for all authenticators. Instead it
2531 was generating a temporary error. It now behaves as specified.
bbe902f0 2532
ea3a6f44
NM
253331. The default ordering of permitted cipher suites for GnuTLS was pessimal
2534 (the order specifies the preference for clients). The order is now AES256,
2535 AES128, 3DES, ARCFOUR128.
bbe902f0 2536
ea3a6f44
NM
253731. Small patch to Sieve code - explicitly set From: when generating an
2538 autoreply.
bbe902f0 2539
ea3a6f44
NM
254032. Exim crashed if a remote delivery caused a very long error message to be
2541 recorded - for instance if somebody sent an entire SpamAssassin report back
2542 as a large number of 550 error lines. This bug was coincidentally fixed by
2543 increasing the size of one of Exim's internal buffers (big_buffer) that
2544 happened as part of the Exiscan merge. However, to be on the safe side, I
2545 have made the code more robust (and fixed the comments that describe what
2546 is going on).
bbe902f0 2547
ea3a6f44
NM
254833. Some experimental protocols are using DNS PTR records for new purposes. The
2549 keys for these records are domain names, not reversed IP addresses. The
2550 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2551 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2552 CAN-2005-0021
2553
ea3a6f44
NM
255434. The host_aton() function is supposed to be passed a string that is known
2555 to be a valid IP address. However, in the case of IPv6 addresses, it was
2556 not checking this. This is a hostage to fortune. Exim now panics and dies
2557 if the condition is not met. A case was found where this could be provoked
2558 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2559 components; fortuitously, this particular loophole had already been fixed
2560 by change 4.50/55 or 4.44/33 above.
2561
2562 If there are any other similar loopholes, the new check in host_aton()
2563 itself should stop them being exploited. The report I received stated that
2564 data on the command line could provoke the exploit when Exim was running as
2565 exim, but did not say which command line option was involved. All I could
2566 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2567 running as the user.
bbe902f0
PH
2568 CAN-2005-0021
2569
ea3a6f44
NM
257035. There was a buffer overflow vulnerability in the SPA authentication code
2571 (which came originally from the Samba project). I have added a test to the
2572 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2573 CAN-2005-0022
2574
ea3a6f44
NM
257536. The daemon start-up calls getloadavg() while still root for those OS that
2576 need the first call to be done as root, but it missed one case: when
2577 deliver_queue_load_max is set with deliver_drop_privilege. This is
2578 necessary for the benefit of the queue runner, because there is no re-exec
2579 when deliver_drop_privilege is set.
bbe902f0 2580
ea3a6f44
NM
258137. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2582 was in use, was not putting the data itself into the right store pool;
2583 consequently, it could be overwritten for a subsequent message in the same
2584 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2585 the caching.)
bbe902f0 2586
ea3a6f44
NM
258738. Sometimes the final signoff response after QUIT could fail to get
2588 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2589 < 0 before doing a fflush(). This bug looks as though it goes back to the
2590 introduction of TLS in release 3.20, but "sometimes" must have been rare
2591 because the tests only now provoked it.
bbe902f0
PH
2592
2593
495ae4b0
PH
2594Exim version 4.43
2595-----------------
2596
2597 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2598 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2599 Now it returns an integer. A number of calls were still expecting a T/F
2600 return. Fortuitously, in all cases, the tests worked in OK situations,
2601 which is the norm. However, things would have gone wrong on any write
2602 failures on the smtp file descriptor. This function is used when sending
2603 messages over SMTP and also when doing verify callouts.
2604
2605 2. When Exim is called to do synchronous delivery of a locally submitted
2606 message (the -odf or -odi options), it no longer closes stderr before doing
2607 the delivery.
2608
2609 3. Implemented the mua_wrapper option.
2610
2611 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2612
2613 5. Implemented the functions header_remove(), header_testname(),
2614 header_add_at_position(), and receive_remove_recipient(), and exported them
2615 to local_scan().
2616
2617 6. If an ACL "warn" statement specified the addition of headers, Exim already
2618 inserted X-ACL-Warn: at the start if there was no header name. However, it
2619 was not making this test for the second and subsequent header lines if
2620 there were newlines in the string. This meant that an invalid header could
2621 be inserted if Exim was badly configured.
2622
2623 7. Allow an ACL "warn" statement to add header lines at the start or after all
2624 the Received: headers, as well as at the end.
2625
2626 8. Added the rcpt_4xx retry error code.
2627
2628 9. Added postmaster_mailfrom=xxx to callout verification option.
2629
263010. Added mailfrom=xxxx to the callout verification option, for verify=
2631 header_sender only.
2632
263311. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2634 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2635
263612. Inserted some casts to stop certain compilers warning when using pointer
2637 differences as field lengths or precisions in printf-type calls (mostly
2638 affecting debugging statements).
2639
264013. Added optional readline() support for -be (dynamically loaded).
2641
264214. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2643 same clock tick as a message's arrival, so that its received time was the
2644 same as the "first fail" time on the retry record, and that message
2645 remained on the queue past the ultimate address timeout, every queue runner
2646 would try a delivery (because it was past the ultimate address timeout) but
2647 after another failure, the ultimate address timeout, which should have then
2648 bounced the address, did not kick in. This was a "< instead of <=" error;
2649 in most cases the first failure would have been in the next clock tick
2650 after the received time, and all would be well.
2651
265215. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2653 being recognized when the domain list was tested by the match_domain
2654 condition in an expansion string.
2655
265616. Added the ${str2b64: operator.
2657
265817. Exim was always calling setrlimit() to set a large limit for the number of
2659 processes, without checking whether the existing limit was already
2660 adequate. (It did check for the limit on file descriptors.) Furthermore,
2661 errors from getrlimit() and setrlimit() were being ignored. Now they are
2662 logged to the main and panic logs, but Exim does carry on, to try to do its
2663 job under whatever limits there are.
2664
266518. Imported PCRE 5.0.
2666
266719. Trivial typo in log message " temporarily refused connection" (the leading
2668 space).
2669
267020. If the log selector return_path_on_delivery was set and an address was
2671 redirected to /dev/null, the delivery process crashed because it assumed
2672 that a return path would always be set for a "successful" delivery. In this
2673 case, the whole delivery is bypassed as an optimization, and therefore no
2674 return path is set.
2675
267621. Internal re-arrangement: the function for sending a challenge and reading
2677 a response while authentication was assuming a zero-terminated challenge
2678 string. It's now changed to take a pointer and a length, to allow for
2679 binary data in such strings.
2680
268122. Added the cyrus_sasl authenticator (code supplied by MBM).
2682
268323. Exim was not respecting finduser_retries when seeking the login of the
2684 uid under which it was called; it was always trying 10 times. (The default
2685 setting of finduser_retries is zero.) Also, it was sleeping after the final
2686 failure, which is pointless.
2687
268824. Implemented tls_on_connect_ports.
2689
269025. Implemented acl_smtp_predata.
2691
269226. If the domain in control=submission is set empty, Exim assumes that the
2693 authenticated id is a complete email address when it generates From: or
2694 Sender: header lines.
2695
269627. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2697 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2698 chown and chgrp in /bin and hostname in /usr/bin.
2699
270028. Exim was keeping the "process log" file open after each use, just as it
2701 does for the main log. This opens the possibility of it remaining open for
2702 long periods when the USR1 signal hits a daemon. Occasional processlog
2703 errors were reported, that could have been caused by this. Anyway, it seems
2704 much more sensible not to leave this file open at all, so that is what now
2705 happens.
2706
270729. The long-running daemon process does not normally write to the log once it
2708 has entered its main loop, and it closes the log before doing so. This is
2709 so that log files can straightforwardly be renamed and moved. However,
2710 there are a couple of unusual error situations where the daemon does write
2711 log entries, and I had neglected to close the log afterwards.
2712
271330. The text of an SMTP error response that was received during a remote
2714 delivery was being truncated at 512 bytes. This is too short for some of
2715 the long messages that one sometimes sees. I've increased the limit to
2716 1024.
2717
271831. It is now possible to make retry rules that apply only when a message has a
2719 specific sender, in particular, an empty sender.
2720
272132. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2722 it possible to be selective about when SMTP synchronization is enforced.
2723
272433. Added "control = caseful_local_part" and "control = "caselower_local_part".
2725
272632. Implemented hosts_connection_nolog.
2727
272833. Added an ACL for QUIT.
2729
273034. Setting "delay_warning=" to disable warnings was not working; it gave a
2731 syntax error.
2732
273335. Added mailbox_size and mailbox_filecount to appendfile.
2734
273536. Added control = no_multiline_responses to ACLs.
2736
273737. There was a bug in the logic of the code that waits for the clock to tick
2738 in the case where the clock went backwards by a substantial amount such
2739 that the microsecond fraction of "now" was more than the microsecond
2740 fraction of "then" (but the whole seconds number was less).
2741
274238. Added support for the libradius Radius client library this is found on
2743 FreeBSD (previously only the radiusclient library was supported).
2744
2745
2746Exim version 4.42
2747-----------------
2748
2749 1. When certain lookups returned multiple values in the form name=value, the
2750 quoting of the values was not always being done properly. Specifically:
2751 (a) If the value started with a double quote, but contained no whitespace,
2752 it was not quoted.
2753 (b) If the value contained whitespace other than a space character (i.e.
2754 tabs or newlines or carriage returns) it was not quoted.
2755 This fix has been applied to the mysql and pgsql lookups by writing a
2756 separate quoting function and calling it from the lookup code. The fix
2757 should probably also be applied to nisplus, ibase and oracle lookups, but
2758 since I cannot test any of those, I have not disturbed their existing code.
2759
2760 2. A hit in the callout cache for a specific address caused a log line with no
2761 reason for rejecting RCPT. Now it says "Previous (cached) callout
2762 verification failure".
2763
2764 3. There was an off-by-one bug in the queryprogram router. An over-long
2765 return line was truncated at 256 instead of 255 characters, thereby
2766 overflowing its buffer with the terminating zero. As well as fixing this, I
2767 have increased the buffer size to 1024 (and made a note to document this).
2768
2769 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2770 when Exim is waiting for an SMTP response from a remote server, Exim
2771 restarts its select() call on the socket, thereby resetting its timeout.
2772 This is not a problem when such interrupts are rare. Somebody set up a cron
2773 job to run exiwhat every 2 minutes, which is less than the normal select()
2774 timeout (5 or 10 minutes). This meant that the select() timeout never
2775 kicked in because it was always reset. I have fixed this by comparing the
2776 time when an interrupt arrives with the time at the start of the first call
2777 to select(). If more time than the timeout has elapsed, the interrupt is
2778 treated as a timeout.
2779
2780 5. Some internal re-factoring in preparation for the addition of Sieve
2781 extensions (by MH). In particular, the "personal" test is moved to a
2782 separate function, and given an option for scanning Cc: and Bcc: (which is
2783 not set for Exim filters).
2784
2785 6. When Exim created an email address using the login of the caller as the
2786 local part (e.g. when creating a From: or Sender: header line), it was not
2787 quoting the local part when it contained special characters such as @.
2788
2789 7. Installed new OpenBSD configuration files.
2790
2791 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2792 try to make them clearer.
2793
2794 9. Callout options, other than the timeout value, were being ignored when
2795 verifying sender addresses in header lines. For example, when using
2796
2797 verify = header_sender/callout=no_cache
2798
2799 the cache was (incorrectly) being used.
2800
280110. Added a missing instance of ${EXE} to the exim_install script; this affects
2802 only the Cygwin environment.
2803
280411. When return_path_on_delivery was set as a log selector, if different remote
2805 addresses in the same message used different return paths and parallel
2806 remote delivery occurred, the wrong values would sometimes be logged.
2807 (Whenever a remote delivery process finished, the return path value from
2808 the most recently started remote delivery process was logged.)
2809
281012. RFC 3848 specifies standard names for the "with" phrase in Received: header
2811 lines when AUTH and/or TLS are in use. This is the "received protocol"
2812 field. Exim used to use "asmtp" for authenticated SMTP, without any
2813 indication (in the protocol name) for TLS use. Now it follows the RFC and
2814 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
2815 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
2816 names appear in log lines as well as in Received: header lines.
2817
281813. Installed MH's patches for Sieve to add the "copy" and "vacation"
2819 extensions, and comparison tests, and to fix some bugs.
2820
282114. Changes to the "personal" filter test:
2822
2823 (1) The test was buggy in that it was just doing the equivalent of
2824 "contains" tests on header lines. For example, if a user's address was
2825 anne@some.where, the "personal" test would incorrectly be true for
2826
2827 To: susanne@some.where
2828
2829 This test is now done by extracting each address from the header in turn,
2830 and checking the entire address. Other tests that are part of "personal"
2831 are now done using regular expressions (for example, to check local parts
2832 of addresses in From: header lines).
2833
2834 (2) The list of non-personal local parts in From: addresses has been
2835 extended to include "listserv", "majordomo", "*-request", and "owner-*",
2836 taken from the Sieve specification recommendations.
2837
2838 (3) If the message contains any header line starting with "List-" it is
2839 treated as non-personal.
2840
2841 (4) The test for "circular" in the Subject: header line has been removed
2842 because it now seems ill-conceived.
2843
284415. Minor typos in src/EDITME comments corrected.
2845
284616. Installed latest exipick from John Jetmore.
2847
284817. If headers_add on a router specified a text string that was too long for
2849 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
2850 of string_sprintf() is now avoided.
2851
285218. $message_body_size was not set (it was always zero) when running the DATA
2853 ACL and the local_scan() function.
2854
285519. For the "mail" command in an Exim filter, no default was being set for
2856 the once_repeat time, causing a random time value to be used if "once" was
2857 specified. (If the value happened to be <= 0, no repeat happened.) The
2858 default is now 0s, meaning "never repeat". The "vacation" command was OK
2859 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
2860 (I found it when inspecting the code).
2861
286220. There is now an overall timeout for performing a callout verification. It
2863 defaults to 4 times the callout timeout, which applies to individual SMTP
2864 commands during the callout. The overall timeout applies when there is more
2865 than one host that can be tried. The timeout is checked before trying the
2866 next host. This prevents very long delays if there are a large number of
2867 hosts and all are timing out (e.g. when the network connections are timing
2868 out). The value of the overall timeout can be changed by specifying an
2869 additional sub-option for "callout", called "maxwait". For example:
2870
2871 verify = sender/callout=5s,maxwait=20s
2872
287321. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
2874 to the end before writing, but this should make it even safer).
2875
287622. Exim was forgetting that it had advertised PIPELINING for the second and
2877 subsequent messages on an SMTP connection. It was also not resetting its
2878 memory on STARTTLS and an internal HELO.
2879
288023. When Exim logs an SMTP synchronization error within a session, it now
2881 records whether PIPELINING has been advertised or not.
2882
288324. Added 3 instances of "(long int)" casts to time_t variables that were being
2884 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
2885 rather than long int.
2886
288725. Installed the latest Cygwin configuration files from the Cygwin maintainer.
2888
288926. Added the never_mail option to autoreply.
2890
2891
2892Exim version 4.41
2893-----------------
2894
2895 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
2896 crash if the getsockname() call failed; this can happen if a connection is
2897 closed very soon after it is established. The problem was simply in the
2898 order in which certain operations were done, causing Exim to try to write
2899 to the SMTP stream before it had set up the file descriptor. The bug has
2900 been fixed by making things happen in the correct order.
2901
2902
2903Exim version 4.40
2904-----------------
2905
2906 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
2907 before the connection was closed, thus losing the rejection response.
2908
2909 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
2910 some early Solaris releases, but causes trouble in current releases where
2911 socklen_t is defined.
2912
2913 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
2914 always exist.
2915
2916 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
2917 configured.
2918
2919 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
2920 that releasing the top of it at the end releases what was used for sub-
2921 expansions (unless the block got too big). However, discard this block if
2922 the first thing is a variable or header, so that we can use its block when
2923 it is dynamic (useful for very large $message_headers, for example).
2924
2925 6. Lookups now cache *every* query, not just the most recent. A new, separate
2926 store pool is used for this. It can be recovered when all lookup caches are
2927 flushed. Lookups now release memory at the end of their result strings.
2928 This has involved some general refactoring of the lookup sources.
2929
2930 7. Some code has been added to the store_xxx() functions to reduce the amount
2931 of flapping under certain conditions.
2932
2933 8. log_incoming_interface used to affect only the <= reception log lines. Now
2934 it causes the local interface and port to be added to several more SMTP log
2935 lines, for example "SMTP connection from", and rejection lines.
2936
2937 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
2938
293910. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
2940
294111. If $host_data was set by virtue of a hosts lookup in an ACL, its value
2942 could be overwritten at the end of the current message (or the start of a
2943 new message if it was set in a HELO ACL). The value is now preserved for
2944 the duration of the SMTP connection.
2945
294612. If a transport had a headers_rewrite setting, and a matching header line
2947 contained an unqualified address, that address was qualified, even if it
2948 did not match any rewriting rules. The underlying bug was that the values
2949 of the flags that permit the existence of unqualified sender and recipient
2950 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
2951 non-local messages, and by -bnq for local messages) were not being
2952 preserved with the message after it was received.
2953
295413. When Exim was logging an SMTP synchronization error, it could sometimes log
2955 "next input=" as part of the text comprising the host identity instead of
2956 the correct text. The code was using the same buffer for two different
2957 strings. However, depending on which order the printing function evaluated
2958 its arguments, the bug did not always show up. Under Linux, for example, my
2959 test suite worked just fine.
2960
296114. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
2962 doesn't work with some older versions of Perl. It has been changed to "my",
2963 which in any case is probably the better facility to use.
2964
296515. A really picky compiler found some instances of statements for creating
2966 error messages that either had too many or two few arguments for the format
2967 string.
2968
296916. The size of the buffer for calls to the DNS resolver has been increased
2970 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
2971 for addresses that have a lot of PTR records. This alleviates a problem; it
2972 does not fully solve it.
2973
297417. A dnsdb lookup for PTR records that receives more data than will fit in the
2975 buffer now truncates the list and logs the incident, which is the same
2976 action as happens when Exim is looking up a host name and its aliases.
2977 Previously in this situation something unpredictable would happen;
2978 sometimes it was "internal error: store_reset failed".
2979
298018. If a server dropped the connection unexpectedly when an Exim client was
2981 using GnuTLS and trying to read a response, the client delivery process
2982 crashed while trying to generate an error log message.
2983
298419. If a "warn" verb in an ACL added multiple headers to a message in a single
2985 string, for example:
2986
2987 warn message = H1: something\nH2: something
2988
2989 the text was added as a single header line from Exim's point of view
2990 though it ended up OK in the delivered message. However, searching for the
2991 second and subsequent header lines using $h_h2: did not work. This has been
2992 fixed. Similarly, if a system filter added multiple headers in this way,
2993 the routers could not see them.
2994
299520. Expanded the error message when iplsearch is called with an invalid key to
2996 suggest using net-iplsearch in a host list.
2997
299821. When running tests using -bh, any delays imposed by "delay" modifiers in
2999 ACLs are no longer actually imposed (and a message to that effect is
3000 output).
3001
300222. If a "gecos" field in a passwd entry contained escaped characters, in
3003 particular, if it contained a \" sequence, Exim got it wrong when building
3004 a From: or a Sender: header from that name. A second bug also caused
3005 incorrect handling when an unquoted " was present following a character
3006 that needed quoting.
3007
300823. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3009 was not being matched caselessly.
3010
301124. Arranged for all hyphens in the exim.8 source to be escaped with
3012 backslashes.
3013
301425. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3015 properly. Recipient callout cache records were still being keyed to include
3016 the sender, even when use_sender was set false. This led to far more
3017 callouts that were necessary. The sender is no longer included in the key
3018 when use_sender is false.
3019
302026. Added "control = submission" modifier to ACLs.
3021
302227. Added the ${base62d: operator to decode base 62 numbers.
3023
302428. dnsdb lookups can now access SRV records.
3025
302629. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3027 the configuration file.
3028
302930. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3030 (-v) mode. This makes the output for a verbose queue run more intelligible.
3031
303231. Added a use_postmaster feature to recipient callouts.
3033
303432. Added the $body_zerocount variable, containing the number of binary zero
3035 bytes in the message body.
3036
303733. The time of last modification of the "new" subdirectory is now used as the
3038 "mailbox time last read" when there is a quota error for a maildir
3039 delivery.
3040
304134. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3042
304335. Added +ignore_unknown as a special item in host lists.
3044
304536. Code for decoding IPv6 addresses in host lists is now included, even if
3046 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3047 address was recognized as an IP address, but was then not correctly decoded
3048 into binary, causing unexpected and incorrect effects when compared with
3049 another IP address.
3050
3051
3052Exim version 4.34
3053-----------------
3054
3055 1. Very minor rewording of debugging text in manualroute to say "list of
3056 hosts" instead of "hostlist".
3057
3058 2. If verify=header_syntax was set, and a header line with an unqualified
3059 address (no domain) and a large number of spaces between the end of the
3060 name and the colon was received, the reception process suffered a buffer
3061 overflow, and (when I tested it) crashed. This was caused by some obsolete
3062 code that should have been removed. The fix is to remove it!
3063
3064 3. When running in the test harness, delay a bit after writing a bounce
3065 message to get a bit more predictability in the log output.
3066
3067 4. Added a call to search_tidyup() just before forking a reception process. In
3068 theory, someone could use a lookup in the expansion of smtp_accept_max_
3069 per_host which, without the tidyup, could leave open a database connection.
3070
3071 5. Added the variables $recipient_data and $sender_data which get set from a
3072 lookup success in an ACL "recipients" or "senders" condition, or a router
3073 "senders" option, similar to $domain_data and $local_part_data.
3074
3075 6. Moved the writing of debug_print from before to after the "senders" test
3076 for routers.
3077
3078 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3079 problems for message scanning, either using a data ACL, or using
3080 local_scan() because the Received: header was not generated till after they
3081 were called (in order to set the time as the time of reception completion).
3082 I have revised the way this works. The header is now generated after the
3083 body is received, but before the ACL or local_scan() are called. After they
3084 are run, the timestamp in the header is updated.
3085
3086
3087Exim version 4.33
3088-----------------
3089
3090 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3091 before starting a queue runner without re-exec. This happened only when
3092 deliver_drop_privilege was set or when the Exim user was set to root. The
3093 effect of the bug was that timeouts during subsequent deliveries caused
3094 crashes instead of being properly handled. The handler is now left at its
3095 default (and expected) setting.
3096
3097 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3098 message, again when deliver_drop_privilege is set or Exim is run as root.
3099 The bug described in (1) was not present in this case, but the tidying up
3100 of the other signals was missing. I have made the two cases consistent.
3101
3102 3. The ignore_target_hosts setting on a manualroute router was being ignored
3103 for hosts that were looked up using the /MX notation.
3104
3105 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3106 in domain lists.
3107
3108 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3109 operated on the sender address. After changing the $sender_address to <>
3110 for the sender address verify, Exim was re-instated it as the original
3111 (before rewriting) address, but remembering that it had rewritten it, so it
3112 wasn't rewriting it again. This bug also had the effect of breaking the
3113 sender address verification caching when the sender address was rewritten.
3114
3115 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3116 This has been changed so that if the ip literal address matches
3117 ignore_target_hosts, the router declines.
3118
3119 7. Added expansion conditions match_domain, match_address, and match_local_
3120 part (NOT match_host).
3121
3122 8. The placeholder for the Received: header didn't have a length field set.
3123
3124 9. Added code to Exim itself and to exim_lock to test for a specific race
3125 condition that could lead to file corruption when using MBX delivery. The
3126 issue is with the lockfile that is created in /tmp. If this file is removed
3127 after a process has opened it but before that process has acquired a lock,
3128 there is the potential for a second process to recreate the file and also
3129 acquire a lock. This could lead to two Exim processes writing to the file
3130 at the same time. The added code performs the same test as UW imapd; it
3131 checks after acquiring the lock that its file descriptor still refers to
3132 the same named file.
3133
313410. The buffer for building added header lines was of fixed size, 8192 bytes.
3135 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3136 when Exim is built.
3137
313811. Added the smtp_active_hostname option. If used, this will typically be made
3139 to depend on the incoming interface address. Because $interface_address is
3140 not set up until the daemon has forked a reception process, error responses
3141 that can happen earlier (such as "too many connections") no longer contain
3142 a host name.
3143
314412. If an expansion in a condition on a "warn" statement fails because a lookup
3145 defers, the "warn" statement is abandoned, and the next ACL statement is
3146 processed. Previously this caused the whole ACL to be aborted.
3147
314813. Added the iplsearch lookup type.
3149
315014. Added ident_timeout as a log selector.
3151
315215. Added tls_certificate_verified as a log selector.
3153
315416. Added a global option tls_require_ciphers (compare the smtp transport
3155 option of the same name). This controls incoming TLS connections.
3156
315717. I finally figured out how to make tls_require_ciphers do a similar thing
3158 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3159 before starting the TLS session.
3160
316118. Tabs are now shown as \t in -bP output.
3162
316319. If the log selector return_path_on_delivery was set, Exim crashed when
3164 bouncing a message because it had too many Received: header lines.
3165
316620. If two routers both had headers_remove settings, and the first one included
3167 a superfluous trailing colon, the final name in the first list and the
3168 first name in the second list were incorrectly joined into one item (with a
3169 colon in the middle).
3170
3171
3172Exim version 4.32
3173-----------------
3174
3175 1. Added -C and -D options to the exinext utility, mainly to make it easier
3176 to include in the automated testing, but these could be helpful when
3177 multiple configurations are in use.
3178
3179 2. The exinext utility was not formatting the output nicely when there was
3180 an alternate port involved in the retry record key, nor when there was a
3181 message id as well (for retries that were specific to a specific message
3182 and a specific host). It was also confused by IPv6 addresses, because of
3183 the additional colons they contain. I have fixed the IPv4 problem, and
3184 patched it up to do a reasonable job for IPv6.
3185
3186 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3187 delivery, the log line now contains "pipelined" if PIPELINING was used.
3188
3189 4. An SMTP transport process used to panic and die if the bind() call to set
3190 an explicit outgoing interface failed. This has been changed; it is now
3191 treated in the same way as a connect() failure.
3192
3193 5. A reference to $sender_host_name in the part of a conditional expansion
3194 that was being skipped was still causing a DNS lookup. This no longer
3195 occurs.
3196
3197 6. The def: expansion condition was not recognizing references to header lines
3198 that used bh_ and bheader_.
3199
3200 7. Added the _cache feature to named lists.
3201
3202 8. The code for checking quota_filecount in the appendfile transport was
3203 allowing one more file than it should have been.
3204
3205 9. For compatibility with Sendmail, the command line option
3206
3207 -prval:sval
3208
3209 is equivalent to
3210
3211 -oMr rval -oMs sval
3212
3213 and sets the incoming protocol and host name (for trusted callers). The
3214 host name and its colon can be omitted when only the protocol is to be set.
3215 Note the Exim already has two private options, -pd and -ps, that refer to
3216 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3217 "s", but I don't think that's a major issue.
3218
321910. A number of refactoring changes to the code, none of which should affect
3220 Exim's behaviour:
3221
3222 (a) The number of logging options was getting close to filling up the
3223 32-bit word that was used as a bit map. I have split them into two classes:
3224 those that are passed in the argument to log_write(), and those that are
3225 only ever tested independently outside of that function. These are now in
3226 separate 32-bit words, so there is plenty of room for expansion again.
3227 There is no change in the user interface or the logging behaviour.
3228
3229 (b) When building, for example, log lines, the code previously used a
3230 macro that called string_cat() twice, in order to add two strings. This is
3231 not really sufficiently general. Furthermore, there was one instance where
3232 it was actually wrong because one of the argument was used twice, and in
3233 one call a function was used. (As it happened, calling the function twice
3234 did not affect the overall behaviour.) The macro has been replaced by a
3235 function that can join an arbitrary number of extra strings onto a growing
3236 string.
3237
3238 (c) The code for expansion conditions now uses a table and a binary chop
3239 instead of a serial search (which was left over from when there were very
3240 few conditions). Also, it now recognizes conditions like "pam" even when
3241 the relevant support is not compiled in: a suitably worded error message is
3242 given if an attempt is made to use such a condition.
3243
324411. Added ${time_interval:xxxxx}.
3245
324612. A bug was causing one of the ddress fields not to be passed back correctly
3247 from remote delivery subprocesses. The field in question was not being
3248 subsequently used, so this caused to problems in practice.
3249
325013. Added new log selectors queue_time and deliver_time.
3251
325214. Might have fixed a bug in maildirsizefile handling that threw up
3253 "unexpected character" debug warnings, and recalculated the data
3254 unnecessarily. In any case, I expanded the warning message to give more
3255 information.
3256
325715. Added the message "Restricted characters in address" to the statements in
3258 the default ACL that block characters like @ and % in local parts.
3259
326016. Change 71 for release 4.31 proved to be much less benign that I imagined.
3261 Three changes have been made:
3262
3263 (a) There was a serious bug; a negative response to MAIL caused the whole
3264 recipient domain to be cached as invalid, thereby blocking all messages
3265 to all local parts at the same domain, from all senders. This bug has
3266 been fixed. The domain is no longer cached after a negative response to
3267 MAIL if the sender used is not empty.
3268
3269 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3270 been restored.
3271
3272 (c) A new callout option, "use_sender" has been added for people who want
3273 the modified behaviour.
3274
3275
3276Exim version 4.31
3277-----------------
3278
3279 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3280 Larry Rosenman.
3281
3282 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3283 indeed breaks things for older releases.
3284
3285 3. Added additional logging to the case where there is a problem reading data
3286 from a filter that is running in a subprocess using a pipe, in order to
3287 try to track down a specific problem.
3288
3289 4. Testing facility fudge: when running in the test harness and attempting
3290 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3291 getting "No route to host". Convert this to a timeout.
3292
3293 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3294 warning.
3295
3296 6. Some OS don't have socklen_t but use size_t instead. This affects the
3297 fifth argument of getsockopt() amongst other things. This is now
3298 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3299 can be set for individual OS. I have set it for SunOS5, OSF1, and
3300 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3301 some earlier ones do not.
3302
3303 7. Change 4.30/15 was not doing the test caselessly.
3304
3305 8. The standard form for an IPv6 address literal was being rejected by address
3306 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3307 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3308 this, as well as the form without the "IPv6" on the front (but only when
3309 address literals are enabled, of course).
3310
3311 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3312
331310. Exim crashed if a message with an empty sender address specified by -f
3314 encountered a router with an errors_to setting. This could be provoked only
3315 by a command such as
3316
3317 exim -f "" ...
3318
3319 where an empty string was supplied; "<>" did not hit this bug.
3320
332111. Installed PCRE release 4.5.
3322
332312. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3324 remained set. It is now erased.
3325
332613. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3327 times from message ids (which are base 36 rather than the normal 62).
3328
332914. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3330 were being counted as actual protocol errors, and logged if the log
3331 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3332 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3333 and DATA following a set of rejected RCPTs do not count as protocol errors.
3334 In other words, Exim assumes they were pipelined, though this may not
3335 actually be the case. Of course, in all cases the client gets an
3336 appropriate error code.
3337
333815. If a lookup fails in an ACL condition, a message about the failure may
3339 be available; it is used if testing the ACL cannot continue, because most
3340 such messages specify what the cause of the deferral is. However, some
3341 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3342 that caused an old message to be retained and used if a later statement
3343 caused a defer, replacing the real cause of the deferral.
3344
334516. If an IP address had so many PTR records that the DNS lookup buffer
3346 was not large enough to hold them, Exim could crash while trying to process
3347 the truncated data. It now detects and logs this case.
3348
334917. Further to 4.21/58, another change has been made: if (and only if) the
3350 first line of a message (the first header line) ends with CRLF, a bare LF
3351 in a subsequent header line has a space inserted after it, so as not to
3352 terminate the header.
3353
335418. Refactoring: tidied an ugly bit of code in appendfile that copied data
3355 unnecessarily, used atoi() instead of strtol(), and didn't check the
3356 termination when getting file sizes from file names by regex.
3357
335819. Completely re-implemented the support for maildirsize files, in the light
3359 of a number of problems with the previous contributed implementation
3360 (4.30/29). In particular:
3361
3362 . If the quota is zero, the maildirsize file is maintained, but no quota is
3363 imposed.
3364
3365 . If the maildir directory does not exist, it is created before any attempt
3366 to write a maildirsize file.
3367
3368 . The quota value in the file is just a cache; if the quota is changed in
3369 the transport, the new value overrides.
3370
3371 . A regular expression is available for excluding directories from the
3372 count.
3373
337420. The autoreply transport checks the characters in options that define the
3375 message's headers; it allows continued headers, but it was checking with
3376 isspace() after an embedded newline instead of explicitly looking for a
3377 space or a tab.
3378
337921. If all the "regular" hosts to which an address was routed had passed their
3380 expiry times, and had not reached their retry times, the address was
3381 bounced, even if fallback hosts were defined. Now Exim should go on to try
3382 the fallback hosts.
3383
338422. Increased buffer sizes in the callout code from 1024 to 4096 to match the
3385 equivalent code in the SMTP transport. Some hosts send humungous responses
3386 to HELO/EHLO, more than 1024 it seems.
3387
338823. Refactoring: code in filter.c used (void *) for "any old type" but this
3389 gives compiler warnings in some environments. I've now done it "properly",
3390 using a union.
3391
339224. The replacement for inet_ntoa() that is used with gcc on IRIX systems
3393 (because of problems with the built-in one) was declared to return uschar *
3394 instead of char *, causing compiler failure.
3395
339625. Fixed a file descriptor leak when processing alias/forward files.
3397
339826. Fixed a minor format string issue in dbfn.c.
3399
340027. Typo in exim.c: ("dmbnz" for "dbmnz").
3401
340228. If a filter file refered to $h_xxx or $message_headers, and the headers
3403 contained RFC 2047 "words", Exim's memory could, under certain conditions,
3404 become corrupted.
3405
340629. When a sender address is verified, it is cached, to save repeating the test
3407 when there is more than one recipient in a message. However, when the
3408 verification involves a callout, it is possible for different callout
3409 options to be set for different recipients. It is too complicated to keep
3410 track of this in the cache, so now Exim always runs a verification when a
3411 callout is required, relying on the callout cache for the optimization.
3412 The overhead is duplication of the address routing, but this should not be
3413 too great.
3414
341530. Fixed a bug in callout caching. If a RCPT command caused the sender address
3416 to be verified with callout=postmaster, and the main callout worked but the
3417 postmaster check failed, the verification correctly failed. However, if a
3418 subsequent RCPT command asked for sender verification *without* the
3419 postmaster check, incorrect caching caused this verification also to fail,
3420 incorrectly.
3421
342231. Exim caches DNS lookup failures so as to avoid multiple timeouts; however,
3423 it was not caching the DNS options (qualify_single, search_parents) that
3424 were used when the lookup failed. A subsequent lookup with different
3425 options therefore always gave the same answer, though there were cases
3426 where it should not have. (Example: a "domains = !$mx_any" option on a
3427 dnslookup router: the "domains" option is always processed without any
3428 widening, but the router might have qualify_single set.) Now Exim uses the
3429 cached value only when the same options are set.
3430
343132. Added John Jetmore's "exipick" utility to the distribution.
3432
343333. GnuTLS: When an attempt to start a TLS session fails for any reason other
3434 than a timeout (e.g. a certificate is required, and is not provided), an
3435 Exim server now closes the connection immediately. Previously it waited for
3436 the client to close - but if the client is SSL, it seems that they each
3437 wait for each other, leading to a delay before one of them times out.
3438
343934: GnuTLS: Updated the code to use the new GnuTLS 1.0.0 API. I have not
3440 maintained 0.8.x compatibility because I don't think many are using it, and
3441 it is clearly obsolete.
3442
344335. Added TLS support for CRLs: a tls_crl global option and one for the smtp
3444 transport.
3445
344636. OpenSSL: $tls_certificate_verified was being set to 1 even if the
3447 client certificate was expired. A simple patch fixes this, though I don't
3448 understand the full logic of why the verify callback is called multiple
3449 times.
3450
345137. OpenSSL: a patch from Robert Roselius: "Enable client-bug workaround.
3452 Versions of OpenSSL as of 0.9.6d include a 'CBC countermeasure' feature,
3453 which causes problems with some clients (such as the Certicom SSL Plus
3454 library used by Eudora). This option, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS,
3455 disables the coutermeasure allowing Eudora to connect."
3456
345738. Exim was not checking that a write() to a log file succeeded. This could
3458 lead to Bad Things if a log got too big, in particular if it hit a file
3459 size limit. Exim now panics and dies if it cannot write to a log file, just
3460 as it does if it cannot open a log file.
3461
346239. Modified OS/Makefile-Linux so that it now contains
3463
3464 CFLAGS=-O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
3465
3466 The two -D definitions ensure that Exim is compiled with large file
3467 support, which makes it possible to handle log files that are bigger than
3468 2^31.
3469
347040. Fixed a subtle caching bug: if (in an ACL or a set of routers, for
3471 instance) a domain was checked against a named list that involved a lookup,
3472 causing $domain_data to be set, then another domain was checked against the
3473 same list, then the first domain was re-checked, the value of $domain_data
3474 after the final check could be wrong. In particular, if the second check
3475 failed, it could be set empty. This bug probably also applied to
3476 $localpart_data.
3477
347841. The strip_trailing_dot option was not being applied to the address given
3479 with the -f command-line option.
3480
348142. The code for reading a message's header from the spool was incrementing
3482 $received_count, but never initializing it. This meant that the value was
3483 incorrect (doubled) while delivering a message in the same process in which
3484 it was received. In the most common configuration of Exim, this never
3485 happens - a fresh exec is done - but it can happen when
3486 deliver_drop_privilege is set.
3487
348843. When Exim logs an SMTP synchronization error - client data sent too soon -
3489 it now includes up to 150 characters of the unexpected data in the log
3490 line.
3491
349244. The exim_dbmbuild utility uses fixed size buffers for reading input lines
3493 and building data strings. The size of both of these buffers was 10 000
3494 bytes - far larger than anybody would *ever* want, thought I. Needless to
3495 say, somebody hit the limit. I have increased the maximum line length to
3496 20 000 and the maximum data length of concatenated lines to 100 000. I have
3497 also fixed two bugs, because there was no checking on these buffers. Tsk,
3498 tsk. Now exim_dbmbuild gives a message and exits with an error code if a
3499 buffer is too small.
3500
350145. The exim_dbmbuild utility did not support quoted keys, as Exim does in
3502 lsearch lookups. Now it does.
3503
350446. When parsing a route_list item in a manualroute router, a fixed-length
3505 buffer was used for the list of hosts. I made this 1024 bytes long,
3506 thinking that nobody would ever have a list of hosts that long. Wrong.
3507 Somebody had a whole pile of complicated expansion conditions, and the
3508 string was silently truncated, leading to an expansion error. It turns out
3509 that it is easier to change to an unlimited length (owing to other changes
3510 that have happened since this code was originally written) than to build
3511 structure for giving a limitation error. The length of the item that
3512 expands into the list of hosts is now unlimited.
3513
351447. The lsearch lookup could not handle data where the length of text line was
3515 more than 4095 characters. Such lines were truncated, leading to shortened
3516 data being returned. It should now handle lines of any length.
3517
351848. Minor wording revision: "cannot test xxx in yyy ACL" becomes "cannot test
3519 xxx condition in yyy ACL" (e.g. "cannot test domains condition in DATA
3520 ACL").
3521
352249. Cosmetic tidy to scripts like exicyclog that are generated by globally
3523 replacing strings such as BIN_DIRECTORY in a source file: the replacement
3524 no longer happens in comment lines. A list of replacements is now placed
3525 at the head of all of the source files, except those whose only change is
3526 to replace PERL_COMMAND in the very first #! line.
3527
352850. Replaced the slow insertion sort in queue.c, for sorting the list of
3529 messages on the queue, with a bottom-up merge sort, using code contributed
3530 by Michael Haardt. This should make operations like -bp somewhat faster on
3531 large queues. It won't affect queue runners, except when queue_run_in_order
3532 is set.
3533
353451. Installed eximstats 1.31 in the distribution.
3535
353652. Added support for SRV lookups to the dnslookup router.
3537
353853. If an ACL referred to $message_body or $message_body_end, the value was not
3539 reset for any messages that followed in the same SMTP session.
3540
354154. The store-handling optimization for building very long strings was not
3542 differentiating between the different store pools. I don't think this
3543 actually made any difference in practice, but I've tidied it.
3544
354555. While running the routers to verify a sender address, $sender_address
3546 was still set to the sender address. This is wrong, because when routing to
3547 send a bounce to the sender, it would be empty. Therefore, I have changed
3548 it so that, while verifying a sender address, $sender_address is set to <>.
3549 (There is no change to what happens when verifying a recipient address.)
3550
355156. After finding MX (or SRV) records, Exim was doing a DNS lookup for the
3552 target A or AAAA records (if not already returned) without resetting the
3553 qualify_single or search_parents options of the DNS resolver. These are
3554 inappropriate in this case because the targets of MX and SRV records must
3555 be FQDNs. A broken DNS record could cause trouble if it happened to have a
3556 target that, when qualified, matched something in the local domain. These
3557 two options are now turned off when doing these lookups.
3558
355957. It seems that at least some releases of Reiserfs (which does not have the
3560 concept of a fixed number of inodes) returns zero and not -1 for the
3561 number of available inodes. This interacted badly with check_spool_inodes,
3562 which assumed that -1 was the "no such thing" setting. What I have done is
3563 to check that the total number of inodes is greater than zero before doing
3564 the test of how many are available.
3565
356658. When a "warn" ACL statement has a log_message modifier, the message is
3567 remembered, and not repeated. This is to avoid a lot of repetition when a
3568 message has many recipients that cause the same warning to be written.
3569 Howewer, Exim was preserving the list of already written lines for an
3570 entire SMTP session, which doesn't seem right. The memory is now reset if a
3571 new message is started.
3572
357359. The "rewrite" debugging flag was not showing the result of rewriting in the
3574 debugging output unless log_rewrite was also set.
3575
357660. Avoid a compiler warning on 64-bit systems in dsearch.c by avoiding the use
3577 of (int)(handle) when we know that handle contains (void *)(-1).
3578
357961. The Exim daemon panic-logs an error return when it closes the incoming
3580 connection. However "connection reset by peer" seems to be common, and
3581 isn't really an error worthy of noting specially, so that particular error
3582 is no long logged.
3583
358462. When Exim is trying to find all the local interfaces, it used to panic and