Error if -q is given more than once.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
3cc66b45 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.431 2006/11/13 11:56:41 ph10 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
944e9e9c
TF
6Exim version 4.64
7-----------------
aa41d2de 8
21d74bd9
TK
9TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
10 leftover -K file (the existence of which was triggered by #402).
11 While we were at it, introduced process PID as part of the -K
12 filename. This should rule out race conditions when creating
13 these files.
14
15TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
16 processing considerably. Previous code took too long for large mails,
17 triggering a timeout which in turn triggers #401.
18
19TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
20 in the DK code in transports.c. sendfile() is not really portable,
21 hence the _LINUX specificness.
944e9e9c
TF
22
23TF/01 In the add_headers option to the mail command in an Exim filter,
24 there was a bug that Exim would claim a syntax error in any
25 header after the first one which had an odd number of characters
26 in the field name.
27
2b1c6e3a
PH
28PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
29 callout verification, Exim cached a "reject" for the entire domain. This
30 is correct for most verifications, but it is not correct for a recipient
31 verification with use_sender or use_postmaster set, because in that case
32 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
33 case of MAIL FROM:<> rejection from other early rejections (e.g.
34 rejection of HELO). When verifying a recipient using a non-null MAIL
35 address, the cache is ignored if it shows MAIL FROM:<> rejection.
36 Whatever the result of the callout, the value of the domain cache is
37 left unchanged (for any other kind of callout, getting as far as trying
38 RCPT means that the domain itself is ok).
39
1f872c80
PH
40PH/02 Tidied a number of unused variable and signed/unsigned warnings that
41 gcc 4.1.1 threw up.
42
43PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
44 manifest itself as EPIPE rather than ECONNECT. When tidying away a
45 session, the daemon ignores ECONNECT errors and logs others; it now
46 ignores EPIPE as well.
47
d203e649
PH
48PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
49 (quoted-printable decoding).
50
cc2ed8f7 51PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 52 later the small subsequent patch to fix an introduced bug.
f951fd57 53
ddfcd446
PH
54PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
55
d45b1de8
PH
56PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
57
58PH/08 An error is now given if message_size_limit is specified negative.
59
38a0a95f 60PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 61 to be given (somewhat) arbitrary names.
38a0a95f 62
a2405d83
JJ
63JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
64 in 4.64-PH/09.
65
66JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
67 miscellaneous code fixes
68
6ea85e9a
PH
69PH/10 Added the log_reject_target ACL modifier to specify where to log
70 rejections.
71
26da7e20
PH
72PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
73 hostname. This is wrong, because it relates to the incoming message (and
74 probably the interface on which it is arriving) and not to the outgoing
75 callout (which could be using a different interface). This has been
76 changed to use the value of the helo_data option from the smtp transport
77 instead - this is what is used when a message is actually being sent. If
78 there is no remote transport (possible with a router that sets up host
79 addresses), $smtp_active_hostname is used.
6ea85e9a 80
14aa5a05 81PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 82 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
83 (a) The code assumed that strncpy() returns a negative number on buffer
84 overflow, which isn't the case. Replaced with Exim's string_format()
85 function.
86 (b) There were several signed/unsigned issues. I just did the minimum
87 hacking in of casts. There is scope for a larger refactoring.
88 (c) The code used strcasecmp() which is not a standard C function.
89 Replaced with Exim's strcmpic() function.
90 (d) The code set only $1; it now sets $auth1 as well.
91 (e) A simple test gave the error "authentication client didn't specify
92 service in request". It would seem that Dovecot has changed its
93 interface. Fortunately there's a specification; I followed it and
94 changed what the client sends and it appears to be working now.
95
ff75a1f7
PH
96PH/13 Added $message_headers_raw to provide the headers without RFC 2047
97 decoding.
98
e6f6568e
PH
99PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
100 address A is aliased to B and C, where B exists and C does not. Without
101 -v the output is "A verified" because verification stops after a
102 successful redirection if more than one address is generated. However,
103 with -v the child addresses are also verified. Exim was outputting "A
104 failed to verify" and then showing the successful verification for C,
105 with its parentage. It now outputs "B failed to verify", showing B's
106 parentage before showing the successful verification of C.
107
d6f6e0dc
PH
108PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
109 look up a TXT record in a specific list after matching in a combined
110 list.
111
322050c2
PH
112PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
113 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
114 they consult the DNS. I had assumed they would set it the way they
115 wanted; and indeed my experiments on Linux seem to show that in some
116 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
117 To be on the safe side, however, I have now made the interface to
118 host_find_byname() similar to host_find_bydns(), with an argument
119 containing the DNS resolver options. The host_find_byname() function now
120 sets these options at its start, just as host_find_bydns() does. The smtp
121 transport options dns_qualify_single and dns_search_parents are passed to
122 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
123 of host_find_byname() use the default settings of RES_DEFNAMES
124 (qualify_single) but not RES_DNSRCH (search_parents).
125
08955dd3
PH
126PH/17 Applied (a modified version of) Nico Erfurth's patch to make
127 spool_read_header() do less string testing, by means of a preliminary
128 switch on the second character of optional "-foo" lines. (This is
129 overdue, caused by the large number of possibilities that now exist.
130 Originally there were few.) While I was there, I also converted the
131 str(n)cmp tests so they don't re-test the leading "-" and the first
132 character, in the hope this might squeeze out yet more improvement.
133
1eccaa59
PH
134PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
135 flag allowing group syntax was set by the header_syntax check but not
136 turned off, possible causing trouble later; (2) The flag was not being
137 set at all for the header_verify test, causing "group"-style headers to
138 be rejected. I have now set it in this case, and also caused header_
139 verify to ignore an empty address taken from a group. While doing this, I
140 came across some other cases where the code for allowing group syntax
141 while scanning a header line wasn't quite right (mostly, not resetting
142 the flag correctly in the right place). These bugs could have caused
143 trouble for malformed header lines. I hope it is now all correct.
144
602e59e5
PH
145PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
146 with the "reply" argument non-NULL. The code, however (which originally
147 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
148 but it didn't always do it. This confused somebody who was copying the
149 code for some other use. I have removed all the tests.
150
411ef850
PH
151PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
152 feature that was used to support insecure browsers during the U.S. crypto
153 embargo. It requires special client support, and Exim is probably the
154 only MTA that supported it -- and would never use it because real RSA is
155 always available. This code has been removed, because it had the bad
156 effect of slowing Exim down by computing (never used) parameters for the
157 RSA_EXPORT functionality.
158
7befa435
PH
159PH/21 On the advice of Timo Sirainen, added a check to the dovecot
160 authenticator to fail if there's a tab character in the incoming data
161 (there should never be unless someone is messing about, as it's supposed
162 to be base64-encoded). Also added, on Timo's advice, the "secured" option
163 if the connection is using TLS or if the remote IP is the same as the
164 local IP, and the "valid-client-cert option" if a client certificate has
165 been verified.
166
48da4259 167PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
168 authenticators. This can be used for authorization after authentication
169 succeeds. (In the case of plaintext, it servers for both authentication
170 and authorization.)
171
48da4259
PH
172PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
173 if any retry times were supplied.
174
d1d5595c
PH
175PH/24 Exim crashed if verify=helo was activated during an incoming -bs
176 connection, where there is no client IP address to check. In this
177 situation, the verify now always succeeds.
178
0ef732d9
PH
179PH/25 Applied John Jetmore's -Mset patch.
180
328895cc
PH
181PH/26 Added -bem to be like -Mset, but loading a message from a file.
182
fd700877
PH
183PH/27 In a string expansion for a processed (not raw) header when multiple
184 headers of the same name were present, leading whitespace was being
185 removed from all of them, but trailing whitespace was being removed only
186 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
187 before concatenation. Completely empty headers in a concatenation (as
188 before) are ignored.
fd700877 189
8dce1a6f
PH
190PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
191 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
192
17af4a17
PH
193PH/29 [Removed. This was a change that I later backed out, and forgot to
194 correct the ChangeLog entry (that I had efficiently created) before
195 committing the later change.]
f6c332bd
PH
196
197PH/30 Exim was sometimes attempting to deliver messages that had suffered
198 address errors (4xx response to RCPT) over the same connection as other
199 messages routed to the same hosts. Such deliveries are always "forced",
200 so retry times are not inspected. This resulted in far too many retries
201 for the affected addresses. The effect occurred only when there were more
202 hosts than the hosts_max_try setting in the smtp transport when it had
203 the 4xx errors. Those hosts that it had tried were not added to the list
204 of hosts for which the message was waiting, so if all were tried, there
205 was no problem. Two fixes have been applied:
206
207 (i) If there are any address or message errors in an SMTP delivery, none
208 of the hosts (tried or untried) are now added to the list of hosts
209 for which the message is waiting, so the message should not be a
210 candidate for sending over the same connection that was used for a
211 successful delivery of some other message. This seems entirely
212 reasonable: after all the message is NOT "waiting for some host".
213 This is so "obvious" that I'm not sure why it wasn't done
214 previously. Hope I haven't missed anything, but it can't do any
215 harm, as the worst effect is to miss an optimization.
216
217 (ii) If, despite (i), such a delivery is accidentally attempted, the
218 routing retry time is respected, so at least it doesn't keep
219 hammering the server.
220
c1114884
PH
221PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
222 in ${readsocket because some servers need this prod.
223
7a0743eb
PH
224PH/32 Added some extra debug output when updating a wait-xxx database.
225
0d85fa3f
PH
226PH/33 The hint "could be header name not terminated by colon", which has been
227 given for certain expansion errors for a long time, was not being given
228 for the ${if def:h_colon_omitted{... case.
229
1bf43b78
PH
230PH/34 The spec says: "With one important exception, whenever a domain list is
231 being scanned, $domain contains the subject domain." There was at least
232 one case where this was not true.
233
520de300
PH
234PH/35 The error "getsockname() failed: connection reset by peer" was being
235 written to the panic log as well as the main log, but it isn't really
236 panic-worthy as it just means the connection died rather early on. I have
237 removed the panic log writing for the ECONNRESET error when getsockname()
238 fails.
239
48c7f9e2
PH
240PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
241 runs only) independently of the message's sender address. This meant
242 that, if the 4xx error was in fact related to the sender, a different
243 message to the same recipient with a different sender could confuse
244 things. In particualar, this can happen when sending to a greylisting
245 server, but other circumstances could also provoke similar problems.
246 I have changed the default so that the retry time for these errors is now
247 based a combination of the sender and recipient addresses. This change
248 can be overridden by setting address_retry_include_sender=false in the
249 smtp transport.
250
99ea1c86
PH
251PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
252 remote server are returned as part of bounce messages. This was not
253 happening for LMTP over a pipe (the lmtp transport), but now it is the
254 same for both kinds of LMTP.
255
a2042e78
PH
256PH/38 Despite being documented as not happening, Exim was rewriting addresses
257 in header lines that were in fact CNAMEs. This is no longer the case.
258
4fbcfc2e
PH
259PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
260 and queue runs started by the daemon processed all messages. This has
261 been fixed so that -R and -S can now usefully be given with -q<time>.
262
aa41d2de
PH
263PH/40 Import PCRE release 6.7 (fixes some bugs).
264
af561417
PH
265PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
266
3cc66b45
PH
267PH/42 Give an error if -q is specified more than once.
268
944e9e9c 269
478be7b0
SC
270Exim version 4.63
271-----------------
272
273SC/01 Use a glob alias rather than an array ref in eximstats generated
274 parser. This improves both readability and performance.
275
276SC/02 Collect SpamAssassin and rejection statistics in eximstats.
277 Don't display local sender or destination tables in eximstats unless
278 there is data to show.
279 Added average volumes into the eximstats top table text output.
280
281SC/03 Collect data on the number of addresses (recipients) as well
282 as the number of messages in eximstats.
283
2b965a65
TF
284TF/01 Correct an error in the documentation for the redirect router. Exim
285 does (usually) call initgroups() when daemonizing.
478be7b0 286
45b91596
PH
287TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
288 with consistent privilege compared to when running as a daemon.
478be7b0 289
c59f5781
TF
290TF/03 Note in the spec that $authenticated_id is not set for local
291 submissions from trusted users.
292
90fc3069
TF
293TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
294 Thanks to Dean Brooks <dean@iglou.com> for the patch.
295
6083aca0
TF
296TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
297 by adding some example configuration directives to the default
298 configuration file. A little bit of work is required to uncomment the
299 directives and define how usernames and passwords are checked, but
300 there is now a framework to start from.
301
765b530f
PH
302PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
303 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
304 without this. I don't know how relevant this is to other LDAP libraries.
305
4e167a8c
PH
306PH/02 Add the verb name to the "unknown ACL verb" error.
307
4608d683
PH
308PH/03 Magnus Holmgren's patch for filter_prepend_home.
309
b8dc3e4a
PH
310PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
311
5418e93b
PH
312PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
313 directory not expanded when it should be if an expanded home directory
314 was set for the address (which is overridden by the transport).
315
b4a9bda2
PH
316PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
317 libradius.
318
45b91596
PH
319PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
320 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
321 because it is too late at that time, and has no effect.
322
5547e2c5
PH
323PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
324 security issue with \' (bugzilla #107). I could not use the
325 PQescapeStringConn() function, because it needs a PGconn value as one of
326 its arguments.
327
dbcef0ea
PH
328PH/08 When testing addresses using -bt, indicate those final addresses that
329 are duplicates that would not cause an additional delivery. At least one
330 person was confused, thinking that -bt output corresponded to deliveries.
331 (Suppressing duplicates isn't a good idea as you lose the information
332 about possibly different redirections that led to the duplicates.)
333
25257489
PH
334PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
335 systems where poll() doesn't work, in particular OS X.
336
c816d124
PH
337PH/10 Added more information to debugging output for retry time not reached.
338
a9ccd69a
PH
339PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
340 operations in malware.c.
341
75fa1910
PH
342PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
343 signatures.
344
a7d7aa58
PH
345PH/13 If write_rejectlog was set false when logging was sent to syslog with
346 syslog_duplication set false, log lines that would normally be written
347 both the the main log and to the reject log were not written to syslog at
348 all.
349
42119b09
PH
350PH/14 In the default configuration, change the use of "message" in ACL warn
351 statements to "add_header".
352
41609df5
PH
353PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
354 not followed by a command (e.g. "seen endif").
355
a5bd321b
PH
356PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
357 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
358 latter.
359
e85a7ad5 360PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
361 so that it is now:
362
e85a7ad5
PH
363 ${if or { \
364 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
365 { match{$h_precedence:}{(?i)bulk|list|junk} } \
366 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
367 }{no}{yes}}
368
e85a7ad5
PH
369 The Auto-Submitted: and various List- headers are standardised, whereas I
370 don't think Precedence: ever was.
5dff5817 371
d8fe1c03
PH
372PH/18 Refactored debugging code in route_finduser() to show more information,
373 in particular, the error code if getpwnam() issues one.
374
16282d2b
PH
375PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
376 This is apparently needed in addition to the PH/07 change above to avoid
377 any possible encoding problems.
378
35d40a98
PH
379PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
380 but not after initializing Perl.
381
034d99ab
PH
382PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
383 output them only if debugging. By default they are written stderr,
384 apparently, which is not desirable.
385
6ec97b1b
PH
386PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
387 queries.
388
e22ca4ac
JJ
389JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
390 --not options
391
392JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
393
33d73e3b
PH
394PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
395 authenticated or an ident call has been made. Suppress the default
396 values for $authenticated_id and $authenticated_sender (but permit -oMai
397 and -oMas) when testing with -bh.
398
9ecb03f3
PH
399PH/24 Re-jigged the order of the tests in the default configuration so that the
400 tests for valid domains and recipients precede the DNS black list and CSA
401 tests, on the grounds that those ones are more expensive.
402
084efe8d
PH
403PH/25 Exim was not testing for a space following SMTP commands such as EHLO
404 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
405 This bug exists in every version of Exim that I still have, right back to
406 0.12.
407
366fc9f0
PH
408PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
409 However, an attempt to turn on case-sensitivity in a regex key by
410 including (?-i) didn't work because the subject string was already
411 lowercased, and the effects were non-intuitive. It turns out that a
412 one-line patch can be used to allow (?-i) to work as expected.
413
c59f5781 414
c887c79e
TF
415Exim version 4.62
416-----------------
417
418TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
419 other effects) broke the use of negated acl sub-conditions.
420
1cce3af8
PH
421PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
422 patch).
423
afb3eaaf
PH
424PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
425 "Deny" causes Exim to reject the incoming connection with a 554 error.
426 Unfortunately, if there is a major crisis, such as a disk failure,
427 tcp-wrappers gives "deny", whereas what one would like would be some
428 kind of temporary error. A kludge has been added to help with this.
429 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
430 554 error is used if errno is still zero or contains ENOENT (which occurs
431 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
432 451 error is used.
433
e173618b
PH
434PH/03 Add -lutil to the default FreeBSD LIBS setting.
435
dd16e114
PH
436PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
437 errors. Otherwise a message that provokes a temporary error (when other
438 messages do not) can cause a whole host to time out.
439
f7fd3850
PH
440PH/05 Batch deliveries by appendfile and pipe transports did not work when the
441 addresses were routed directly to files or pipes from a redirect router.
442 File deliveries just didn't batch; pipe deliveries might have suffered
443 odd errors.
444
d87df92c
PH
445PH/06 A failure to get a lock for a hints database would erroneously always say
446 "Failed to get write lock", even when it was really a read lock.
447
7e9f683d
PH
448PH/07 The appendfile transport was creating MBX lock files with a fixed mode
449 of 0600. This has been changed to use the value of the lockfile_mode
450 option (which defaults to 0600).
451
bfad5236
PH
452PH/08 Applied small patch from the Sieve maintainer.
453
01c490df
PH
454PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
455 folder from quota calculations, a direct delivery into this folder messed
456 up the contents of the maildirsize file. This was because the regex was
457 used only to exclude .Trash (or whatever) when the size of the mailbox
458 was calculated. There was no check that a delivery was happening into an
459 excluded directory. This bug has been fixed by ignoring all quota
460 processing for deliveries into excluded directories.
461
d6629cdc
PH
462PH/10 Added the maildirfolder_create_regex option to appendfile.
463
1cce3af8 464
214e2000
PH
465Exim version 4.61
466-----------------
467
468PH/01 The code for finding all the local interface addresses on a FreeBSD
469 system running IPv6 was broken. This may well have applied to all BSD
470 systems, as well as to others that have similar system calls. The broken
471 code found IPv4 interfaces correctly, but gave incorrect values for the
472 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
473 that it would not match correctly against @[] and not recognize the IPv6
474 addresses as local.
475
f9daeae0
PH
476PH/02 The ipliteral router was not recognizing addresses of the form user@
477 [ipv6:....] because it didn't know about the "ipv6:" prefix.
478
7e66e54d
PH
479PH/03 Added disable_ipv6.
480
c8ea1597
PH
481PH/04 Changed $reply_address to use the raw form of the headers instead of the
482 decoded form, because it is most often used to construct To: headers
483 lines in autoreplies, and the decoded form may well be syntactically
484 invalid. However, $reply_address has leading white space removed, and all
485 newlines turned into spaces so that the autoreply transport does not
486 grumble.
487
911f6fde
PH
488PH/05 If group was specified without a user on a router, and no group or user
489 was specified on a transport, the group from the router was ignored.
490
47ca6d6c
PH
491PH/06 Increased the number of ACL variables to 20 of each type, and arranged
492 for visible compile-time settings that can be used to change these
493 numbers, for those that want even more. Backwards compatibility with old
494 spool files has been maintained. However, going back to a previous Exim
495 release will lost any variables that are in spool files.
496
ed0e9820
PH
497PH/07 Two small changes when running in the test harness: increase delay when
498 passing a TCP/IP connection to a new process, in case the original
499 process has to generate a bounce, and remove special handling of
500 127.0.0.2 (sic), which is no longer necessary.
501
eff37e47
PH
502PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
503 be the same on different OS.
504
1921d2ea
PH
505PH/09 Moved a debug statement in filter processing to avoid a race problem when
506 testing.
507
b3f69ca8
JJ
508JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
509 whether --show-vars was specified or not
510
511JJ/02 exipick: Added support for new ACL variable spool format introduced
512 in 4.61-PH/06
513
424a1c63
PH
514PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
515 syntactically invalid From: or Reply-to: line, and a filter used this to
516 generate an autoreply, and therefore failed to obtain an address for the
517 autoreply, Exim could try to deliver to a non-existent relative file
518 name, causing unrelated and misleading errors. What now happens is that
519 it logs this as a hard delivery error, but does not attempt to create a
520 bounce message.
521
7a100415
PH
522PH/11 The exinext utility has a -C option for testing purposes, but although
523 the given file was scanned by exinext itself; it wasn't being passed on
524 when Exim was called.
525
19b9dc85
PH
526PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
527 an end-of-file indication when reading a command response.
528
309bd837
PH
529PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
530 compiled. In many other places in Exim, IPv6 addresses are always
531 recognized, so I have changed this. It also means that IPv4 domain
532 literals of the form [IPV4:n.n.n.n] are now always recognized.
533
59e82a2a
PH
534PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
535 used if the router is not running as root, for example, when verifying at
536 ACL time, or when using -bh. The debugging output from this situation was
537 non-existent - all you got was a failure to exec. I have made two
538 changes:
539
540 (a) Failures to set uid/gid, the current directory, or a process leader
541 in a subprocess such as that created by queryprogram now generate
542 suitable debugging ouput when -d is set.
543
544 (b) The queryprogram router detects when it is not running as root,
545 outputs suitable debugging information if -d is set, and then runs
546 the subprocess without attempting to change uid/gid.
547
9edc04ce
PH
548PH/15 Minor change to Makefile for building test_host (undocumented testing
549 feature).
550
1349e1e5
PH
551PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
552 additional section of a DNS packet that returns MX or SRV records.
553 Instead, it always explicitly searches for A/AAAA records. This avoids
554 major problems that occur when a DNS server includes only records of one
555 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
556 fixed another bug: if SRV records were looked up and the corresponding
557 address records were *not* found in the additional section, the port
558 values from the SRV records were lost.
559
ea49d0e1
PH
560PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
561 using the correct key (the original address) when searching the retry
562 rules in order to find which one to use for generating the retry hint.
563
064a94c9
PH
564PH/18 If quota_warn_message contains a From: header, Exim now refrains from
565 adding the default one. Similarly, if it contains a Reply-To: header, the
566 errors_reply_to option, if set, is not used.
567
727071f8
PH
568PH/19 When calculating a retry time, Exim used to measure the "time since
569 failure" by looking at the "first failed" field in the retry record. Now
570 it does not use this if it is later than than the arrival time of the
571 message. Instead it uses the arrival time. This makes for better
572 behaviour in cases where some deliveries succeed, thus re-setting the
573 "first failed" field. An example is a quota failure for a huge message
574 when small messages continue to be delivered. Without this change, the
575 "time since failure" will always be short, possible causing more frequent
576 delivery attempts for the huge message than are intended.
dd16e114 577 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 578
f78eb7c6
PH
579PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
580 $1, $2, $3) because the numerical variables can be reset during some
581 expansion items (e.g. "match"), thereby losing the authentication data.
582
21c28500
PH
583PH/21 Make -bV show the size of off_t variables so that the test suite can
584 decide whether to run tests for quotas > 2G.
585
586PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
587 mailbox_size, and mailbox_filecount in the appendfile transport. If a
588 filecount value is greater than 2G or if a quota value is greater than 2G
589 on a system where the size of off_t is not greater than 4, a panic error
590 is given.
591
1688f43b
PH
592PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
593 never match. The debug and -bh output now contains an explicit error
594 message indicating a malformed IPv4 address or mask.
595
596PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
597 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
598 PH/23 above applies.
599
9675b384
PH
600PH/25 Do not write to syslog when running in the test harness. The only
601 occasion when this arises is a failure to open the main or panic logs
602 (for which there is an explicit test).
603
6a3f1455
PH
604PH/26 Added the /no_tell option to "control=freeze".
605
dac79d3e
PH
606PH/27 If a host name lookup failed very early in a connection, for example, if
607 the IP address matched host_lookup and the reverse lookup yielded a name
608 that did not have a forward lookup, an error message of the form "no IP
609 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
610 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 611
5977a0b3
PH
612PH/28 An enabling patch from MH: add new function child_open_exim2() which
613 allows the sender and the authenticated sender to be set when
614 submitting a message from within Exim. Since child_open_exim() is
615 documented for local_scan(), the new function should be too.
616
c91535f3
PH
617PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
618 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
619 results in an empty string is now treated as unset.
620
0d46a8c8
PH
621PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
622
278c6e6c
PH
623PH/31 Added sender_verify_fail logging option.
624
2cbb4081
PH
625PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
626 needed by RFC 822 but not by RFC 2822 was commented out. I have now
627 tidied the source and removed it altogether.
628
3eef829e
PH
629PH/33 When a queue run was abandoned because the load average was too high, a
630 log line was always written; now it is written only if the queue_run log
631 selector is set. In addition, the log line for abandonment now contains
632 information about the queue run such as the pid. This is always present
633 in "start" and "stop" lines but was omitted from the "abandon" line.
634
1ab95fa6
PH
635PH/34 Omit spaces between a header name and the colon in the error message that
636 is given when verify = headers_syntax fails (if there are lots of them,
637 the message gets confusing).
638
230205fc
PH
639PH/35 Change the default for dns_check_names_pattern to allow slashes within
640 names, as there are now some PTR records that contain slashes. This check
641 is only to protect against broken name servers that fall over on strange
642 characters, so the fact that it applies to all lookups doesn't matter.
643
75e0e026
PH
644PH/36 Now that the new test suite is complete, we can remove some of the
645 special code in Exim that was needed for the old test suite. For example,
646 sorting DNS records because real resolvers return them in an arbitrary
647 order. The new test suite's fake resolver always returns records in the
648 same order.
649
650PH/37 When running in the test harness, use -odi for submitted messages (e.g.
651 bounces) except when queue_only is set, to avoid logging races between
652 the different processes.
653
145396a6
PH
654PH/38 Panic-die if .include specifies a non-absolute path.
655
3cd34f13
PH
656PH/39 A tweak to the "H" retry rule from its user.
657
11121d3d
JJ
658JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
659 a label. They prevented compilation on older perls.
660
661JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
662 a warning to be raised on newish perls.
663
664JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
665 on queue. Changes to match documented behaviour of showing count of
666 messages matching specified criteria.
667
8def5aaf
PH
668PH/40 Changed the default ident timeout from 30s to 5s.
669
929ba01c
PH
670PH/41 Added support for the use of login_cap features, on those BSD systems
671 that have them, for controlling the resources used by pipe deliveries.
672
2632889e
PH
673PH/42 The content-scanning code uses fopen() to create files in which to put
674 message data. Previously it was not paying any attention to the mode of
675 the files. Exim runs with umask(0) because the rest of the code creates
676 files with open(), and sets the required mode explicitly. Thus, these
677 files were ending up world-writeable. This was not a big issue, because,
678 being within the spool directory, they were not world-accessible. I have
679 created a function called modefopen, which takes an additional mode
680 argument. It sets umask(777), creates the file, chmods it to the required
681 mode, then resets the umask. All the relevant calls to fopen() in the
682 content scanning code have been changed to use this function.
683
944a9c55
PH
684PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
685 to 24 hours. This avoids potential overflow problems when processing G
686 and H retry rules. I suspect nobody ever tinkers with this value.
687
4a23603b
PH
688PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
689
4730f942
PH
690PH/45 When the plaintext authenticator is running as a client, the server's
691 challenges are checked to ensure they are valid base64 strings. By
692 default, the authentication attempt is cancelled if an invalid string is
693 received. Setting client_ignore_invalid_base64 true ignores these errors.
694 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
695 they are received. Thus, the responses can be made to depend on the
696 challenges. If an invalid string is ignored, an empty string is placed in
697 the variable.
698
30dba1e6
PH
699PH/46 Messages that are created by the autoreply transport now contains a
700 References: header, in accordance with RFCs 2822 and 3834.
701
382afc6b
PH
702PH/47 Added authenticated_sender_force to the smtp transport.
703
a86229cf
PH
704PH/48 The ${prvs expansion was broken on systems where time_t was long long.
705
50c99ba6
PH
706PH/49 Installed latest patch from the Sieve maintainer.
707
d35e429d
PH
708PH/50 When an Exim quota was set without a file count quota, and mailbox_size
709 was also set, the appendfile transport was unnecessarily scanning a
710 directory of message files (e.g. for maildir delivery) to find the count
711 of files (along with the size), even though it did not need this
712 information. It now does the scan only if it needs to find either the
713 size of the count of files.
714
f90d018c
PH
715PH/51 Added ${time_eval: to convert Exim time strings into seconds.
716
75def545
PH
717PH/52 Two bugs concerned with error handling when the smtp transport is
718 used in LMTP mode:
719
720 (i) Exim was not creating retry information for temporary errors given
721 for individual recipients after the DATA command when the smtp transport
722 was used in LMTP mode. This meant that they could be retried too
723 frequently, and not timed out correctly.
724
725 (ii) Exim was setting the flag that allows error details to be returned
726 for LMTP errors on RCPT commands, but not for LMTP errors for individual
727 recipients that were returned after the DATA command.
728
729PH/53 This is related to PH/52, but is more general: for any failing address,
730 when detailed error information was permitted to be returned to the
731 sender, but the error was temporary, then after the final timeout, only
732 "retry timeout exceeded" was returned. Now it returns the full error as
733 well as "retry timeout exceeded".
734
c46782ef
PH
735PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
736 do this, and (what is worse) MTAs that accept it.
737
71fafd95
PH
738PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
739 will now be deprecated.
740
2c5db4fd
PH
741PH/56 New os.c-cygwin from the Cygwin maintainer.
742
9cf6b11a
JJ
743JJ/06 exipick: added --unsorted option to allow unsorted output in all output
744 formats (previously only available in exim formats via -bpr, -bpru,
745 and -bpra. Now also available in native and exiqgrep formats)
746
747JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
748 with very large, slow to parse queues
749
750JJ/08 exipick: added ! as generic prefix to negate any criteria format
751
752JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
753
898d150f
PH
754PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
755 responses to authentication challenges, though it was showing the
756 challenges; (ii) I've removed the CR characters from the debug output for
757 SMTP output lines.
758
46218253
PH
759PH/58 Allow for the insertion of a newline as well as a space when a string
760 is turned into more than one encoded-word during RFC 2047 encoding. The
761 Sieve code now uses this.
762
e97957bc
PH
763PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
764 data_4xx, lost_connection, tls_required.
765
81e509d7
PH
766PH/60 When a VRFY deferred or FAILED, the log message rather than the user
767 message was being sent as an SMTP response.
768
3d240ff7
PH
769PH/61 Add -l and -k options to exicyclog.
770
b37c4101
PH
771PH/62 When verifying, if an address was redirected to one new address, so that
772 verification continued, and the new address failed or deferred after
773 having set something in $address_data, the value of $address_data was not
774 passed back to the ACL. This was different to the case when no
775 redirection occurred. The value is now passed back in both cases.
776
79378e0f
PH
777PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
778 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
779 use login_cap.h, so on its own it isn't the distinguishing feature. The
780 new name refers directly to the setclassresources() function.
781
e49c7bb4
PH
782PH/65 Added configuration files for NetBSD3.
783
d114ec46
PH
784PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
785
f3d7df6c
PH
786PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
787 is preferred over IPv4.
788
715ab376
PH
789PH/68 The bounce_return_message and bounce_return_body options were not being
790 honoured for bounces generated during the reception of non-SMTP messages.
791 In particular, this applied to messages rejected by the ACL. This bug has
792 been fixed. However, if bounce_return_message is true and bounce_return_
793 body is false, the headers that are returned for a non-SMTP message
794 include only those that have been read before the error was detected.
795 (In the case of an ACL rejection, they have all been read.)
796
6b31b150
PH
797PH/69 The HTML version of the specification is now built in a directory called
798 spec_html instead of spec.html, because the latter looks like a path with
799 a MIME-type, and this confuses some software.
800
801PH/70 Catch two compiler warnings in sieve.c.
802
d515a917
PH
803PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
804 function verify_get_ident() calls ip_connect() to connect a socket, but
805 if the "connect()" function timed out, ip_connect() used to close the
806 socket. However, verify_get_ident() also closes the socket later, and in
807 between Exim writes to the log, which may get opened at this point. When
808 the socket was closed in ip_connect(), the log could get the same file
809 descriptor number as the socket. This naturally causes chaos. The fix is
810 not to close the socket in ip_connect(); the socket should be closed by
811 the function that creates it. There was only one place in the code where
812 this was missing, in the iplookup router, which I don't think anybody now
813 uses, but I've fixed it anyway.
814
9b8fadde
PH
815PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
816 well as to direct DNS lookups. Otherwise the handling of names in host
817 lists is inconsistent and therefore confusing.
818
214e2000 819
5de37277
PH
820Exim version 4.60
821-----------------
822
cc38ddbf
PH
823PH/01 Two changes to the default runtime configuration:
824
825 (1) Move the checks for relay_from_hosts and authenticated clients from
826 after to before the (commented out) DNS black list checks.
827
828 (2) Add control=submission to the relay_from_hosts and authenticated
829 clients checks, on the grounds that messages accepted by these
830 statements are most likely to be submissions.
5de37277 831
72fdd6ae
PH
832PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
833
834 (1) Generate an error if the third argument for the ${prvs expansion is
835 not a single digit.
836
837 (2) Treat a missing third argument of ${prvscheck as if it were an empty
838 string.
839
840 (3) Reset the variables that are obtained from the first argument of
841 ${prvscheck and used in the second argument before leaving the code,
842 because their memory is reclaimed, so using them afterwards may do
843 silly things.
844
845 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
846 one (it's much easier than Tom thought :-).
847
848 (5) Because of (4), we can now allow for the use of $prvscheck_result
849 inside the third argument.
cb9328de 850
cb741023
PH
851PH/03 For some reason, the default setting of PATH when running a command from
852 a pipe transport was just "/usr/bin". I have changed it to
853 "/bin:/usr/bin".
854
f174f16e
PH
855PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
856 anything to be listed in the output from -bV.
b2f5a032 857
c25242d7
PH
858PH/05 When a filter generated an autoreply, the entire To: header line was
859 quoted in the delivery log line, like this:
860
861 => >A.N.Other <ano@some.domain> <original@ddress> ...
862
863 This has been changed so that it extracts the operative address. There
864 may be more than one such address. If so, they are comma-separated, like
865 this:
866
867 => >ano@some.domain,ona@other.domain <original@ddress> ...
868
82c19f95
PH
869PH/06 When a client host used a correct literal IP address in a HELO or EHLO
870 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
871 not being looked up in the rDNS to get a host name, Exim was showing the
872 IP address twice in Received: lines, even though the IP addresses were
873 identical. For example:
874
875 Received: from [1.2.3.4] (helo=[1.2.3.4])
876
877 However, if the real host name was known, it was omitting the HELO data
878 if it matched the actual IP address. This has been tidied up so that it
879 doesn't show the same IP address twice.
880
d7ffbc12
PH
881PH/07 When both +timestamp and +memory debugging was on, the value given by
882 $tod_xxx expansions could be wrong, because the tod_stamp() function was
883 called by the debug printing, thereby overwriting the timestamp buffer.
884 Debugging no longer uses the tod_stamp() function when +timestamp is set.
885
9f526266
PH
886PH/08 When the original message was included in an autoreply transport, it
887 always said "this is a copy of the message, including all the headers",
888 even if body_only or headers_only was set. It now gives an appropriate
889 message.
890
87fcc8b9
PH
891PH/09 Applied a patch from the Sieve maintainer which:
892
893 o fixes some comments
894 o adds the (disabled) notify extension core
895 o adds some debug output for the result of if/elsif tests
896 o points to the current vacation draft in the documentation
897 and documents the missing references header update
898
899 and most important:
900
901 o fixes a bug in processing the envelope test (when testing
902 multiple envelope elements, the last element determinted the
903 result)
904
456682f5
PH
905PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
906 Electronic Mail") by including:
907
908 Auto-submitted: auto-generated
909
910 in the messages that it generates (bounce messages and others, such as
911 warnings). In the case of bounce messages for non-SMTP mesages, there was
912 also a typo: it was using "Auto_submitted" (underscore instead of
913 hyphen). Since every message generated by Exim is necessarily in response
914 to another message, thes have all been changed to:
915
916 Auto-Submitted: auto-replied
917
918 in accordance with these statements in the RFC:
919
920 The auto-replied keyword:
921
922 - SHOULD be used on messages sent in direct response to another
923 message by an automatic process,
924
925 - MUST NOT be used on manually-generated messages,
926
927 - MAY be used on Delivery Status Notifications (DSNs) and Message
928 Disposition Notifications (MDNs),
929
930 - MUST NOT be used on messages generated by automatic or periodic
931 processes, except for messages which are automatic responses to
932 other messages.
933
3e46c1aa
PH
934PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
935 to the default Received: header definition.
456682f5 936
49826d12
PH
937PH/12 Added log selector acl_warn_skipped (default on).
938
eba0c039
PH
939PH/13 After a successful wildlsearch lookup, discard the values of numeric
940 variables because (a) they are in the wrong storage pool and (b) even if
941 they were copied, it wouldn't work properly because of the caching.
942
a0d6ba8a
PH
943PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
944 checking when decoding. Apparently there are clients that generate
945 overlong encoded strings. Why am I not surprised?
946
f0917727
PH
947PH/15 If the first argument of "${if match_address" was not empty, but did not
948 contain an "@" character, Exim crashed. Now it writes a panic log message
949 and treats the condition as false.
950
096fee00
PH
951PH/16 In autoreply, treat an empty string for "once" the same as unset.
952
024bd3c2
PH
953PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
954 extension "envelope-auth". The code is finished and in agreement with
955 other implementations, but there is no documentation so far and in fact,
956 nobody wrote the draft yet. This extension is currently #undef'ed, thus
957 not changing the active code.
958
959 Print executed "if" and "elsif" statements when debugging is used. This
960 helps a great deal to understand what a filter does.
961
962 Document more things not specified clearly in RFC3028. I had all this
963 sorted out, when out of a sudden new issues came to my mind. Oops."
964
df199fec
PH
965PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
966 (Bugzilla #53).
967
d27f1df3
PH
968PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
969 canonical form (as documented). However, after a host name lookup from
970 the IP address, check_host() was doing a simple string comparison with
971 addresses acquired from the DNS when checking that the found name did
972 have the original IP as one of its addresses. Since any found IPv6
973 addresses are likely to be in abbreviated form, the comparison could
974 fail. Luckily, there already exists a function for doing the comparison
975 by converting both addresses to binary, so now that is used instead of
976 the text comparison.
977
96776534
PH
978PH/20 There was another similar case to PH/19, when a complete host name was
979 given in a host list; looking up its IP address could give an abbreviated
980 form, whereas the current host's name might or might not be abbreviated.
981 The same fix has been applied.
982
5de37277 983
9a799bc0
PH
984Exim version 4.54
985-----------------
986
987PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
988 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
989 It now does.
990
99a4b039
PH
991PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
992 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
993
994PH/03 Typo: missing ".o" in src/pcre/Makefile.
995
4b233853
PH
996PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
997 header line, restrict the check to what is listed in RFCs 2369 and 2929.
998 Also, for "Auto-Submitted", treat anything other than "no" as
999 non-personal, in accordance with RFC 3834. (Previously it treated
1000 anything starting "auto-" as non-personal.)
1001
8857ccfd
PH
1002TF/01 The control=submission/name=... option had a problem with syntax
1003 errors if the name included a slash character. The /name= option
1004 now slurps the rest of the string, so it can include any characters
1005 but it must come last in the list of options (after /sender_retain
1006 or /domain=).
1007
433a2980
PH
1008PH/05 Some modifications to the interface to the fake nameserver for the new
1009 testing suite.
1010
3e46c1aa 1011
9a799bc0 1012
e3a311ba
TK
1013Exim version 4.53
1014-----------------
1015
1016TK/01 Added the "success_on_redirect" address verification option. See
1017 NewStuff for rationale and an example.
1018
13b685f9
PH
1019PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1020
395ff96d
PH
1021PH/02 Patch to exigrep to allow it to work on syslog lines.
1022
5b68f6e4
PH
1023PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1024 fread() to skip over the body file's header line, because in Cygwin the
1025 header line is locked and is inaccessible.
1026
1ab52c69
PH
1027PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1028 co-exist for some time) to make it clear that it is the Exim ID that is
1029 referenced, not the Message-ID: header line.
1030
b07e6aa3
PH
1031PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1032 string_format() function, because snprintf() does not exist on all
1033 operating systems.
1034
254e032f
PH
1035PH/06 The use of forbid_filter_existstest now also locks out the use of the
1036 ${stat: expansion item.
1037
3af76a81
PH
1038PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1039 protocol synchronization error", to keep the pedants happy.
1040
2548ba04
PH
1041PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1042 well as for IRIX systems, when gcc is being used. See the host.c source
1043 file for comments.
1044
b6c6011d
PH
1045PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1046
cf39cf57
PH
1047PH/10 Named domain lists were not working if used in a queue_smtp_domains
1048 setting.
1049
f1513293
PH
1050PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1051 transport and to the smtp transport in LMTP mode.
1052
727549a4
PH
1053TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1054
af46795e
PH
1055PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1056 run a filter in a subprocess. This could lead to confusion in subsequent
1057 lookups in the parent process. There should also be a search_tidyup() at
1058 the end of the subprocess.
1059
d7b47fd0
PH
1060PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1061 only if the host matched helo_try_verify_hosts, which caused the
1062 verification to occur when the EHLO/HELO command was issued. The ACL just
1063 tested the remembered result. Now, if a previous verification attempt has
1064 not happened, "verify = helo" does it there and then.
1065
ee744174
JJ
1066JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1067
b582ab87
PH
1068TK/03 Fix log output including CR from clamd.
1069
41a13e0a
PH
1070PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1071 exist provoked a memory error which could cause a segfault.
1072
f625cc5a
PH
1073PH/15 Installed PCRE 6.2
1074
1075PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1076
21f7af35
PH
1077PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1078 of the problem. Specifically, suggested +O2 rather than +O1 for the
1079 HP-UX compiler.
1080
31480e42
PH
1081PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1082
2d280592
PH
1083PH/20 If a delivery was routed to a non-standard port by means of an SRV
1084 record, the port was not correctly logged when the outgoing_port log
1085 selector was set (it logged the transort's default port).
1086
7cd1141b
PH
1087PH/21 Added support for host-specific ports to manualroute, queryprogram,
1088 fallback_hosts, and "hosts" in the smtp transport.
1089
1090PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1091 host errors such as "Connection refused".
1092
750af86e
PH
1093PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1094 authentication with radiusclient 0.4.9:
1095
1096 - Error returned from rc_read_config was caught wrongly
1097 - Username/password not passed on to radius server due to wrong length.
1098
1099 The presumption is that some radiusclient API changes for 4.51/PH/17
1100 were not taken care of correctly. The code is still untested by me (my
1101 Linux distribution still has 0.3.2 of radiusclient), but it was
1102 contributed by a Radius user.
1103
1104PH/24 When doing a callout, the value of $domain wasn't set correctly when
1105 expanding the "port" option of the smtp transport.
1106
4304270b
TK
1107TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1108 while reading a MIME header. Thanks to Tom Hughes for a patch.
1109
750af86e
PH
1110PH/24 Include config.h inside local_scan.h so that configuration settings are
1111 available.
1112
64ffc24f
PH
1113PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1114 that in an ACL for RCPT (for example), you can examine exactly what was
1115 received.
1116
5dd9625b
PH
1117PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1118 commands, but it was not correctly comparing the address with the actual
1119 client host address. Thus, it would show the EHLO address in Received:
1120 header lines when this was not necessary.
1121
5591031b
PH
1122PH/27 Added the % operator to ${eval:}.
1123
ba18e66a
PH
1124PH/28 Exim tries to create and chdir to its spool directory when it starts;
1125 it should be ignoring failures (because with -C, for example, it has lost
1126 privilege). It wasn't ignoring creation failures other than "already
1127 exists".
1128
9cec981f
PH
1129PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1130 -bV or -d is used.
1131
aa2b5c79
PH
1132PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1133 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1134 too many continuations, the temporary file was not being removed, and the
1135 return code was incorrect.
aa2b5c79 1136
48a53b7f
PH
1137PH/31 Missing "BOOL" in function definition in filtertest.c.
1138
1c59d63b
PH
1139PH/32 Applied Sieve patches from the maintainer.
1140
671012da
TK
1141TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1142
1509d3a8
PH
1143PH/33 Added "verify = not_blind".
1144
1145PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1146 Local/Makefile (with some defaults set). These are used in built scripts
1147 such as exicyclog, but they have never been used in the exim_install
1148 script (though there are many overriding facilities there). I have
1149 arranged that the exim_install script now takes note of these two
1150 settings.
1151
1152PH/35 Installed configuration files for Dragonfly.
1153
2fe1a124
PH
1154PH/36 When a locally submitted message by a trusted user did not contain a
1155 From: header, and the sender address was obtained from -f or from an SMTP
1156 MAIL command, and the trusted user did not use -F to supply a sender
1157 name, $originator_name was incorrectly used when constructing a From:
1158 header. Furthermore, $originator_name was used for submission mode
1159 messages from external hosts without From: headers in a similar way,
1160 which is clearly wrong.
1161
8800895a
PH
1162PH/37 Added control=suppress_local_fixups.
1163
ccfdb010
PH
1164PH/38 When log_selector = +received_sender was set, and the addition of the
1165 sender made the log line's construction buffer exactly full, or one byte
1166 less than full, an overflow happened when the terminating "\n" was
1167 subsequently added.
1168
1130bfb0
PH
1169PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1170 when the result of a list match is failure because a DNS lookup failed.
1171
ebcb507f
PH
1172PH/40 RM_COMMAND is now used in the building process.
1173
c35e155c
PH
1174PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1175 the "build-* directories that it finds.
1176
95d1f782
PH
1177PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1178 address in a domain literal was a prefix of an interface address.
1179
fd6de02e
PH
1180PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1181 when verifying a sender address, unless rewrite_headers is false.
1182
58de37c5
PH
1183PH/44 Wrote a long comment about why errors_to addresses are verified as
1184 recipients, not senders.
1185
261cf466
TF
1186TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1187 the ratelimit ACL was added.
1188
3ee512ff
PH
1189PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1190
e08c430f
PH
1191PH/46 Added extra information about PostgreSQL errors to the error string.
1192
bef5a11f
PH
1193PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1194 avoiding the need to install special zones in a real server. This is
1195 backwards compatible; if it can't find the fake resolver, it drops back.
1196 Thus, both old and new test suites can be run.
1197
7546de58
TF
1198TF/02 Added util/ratelimit.pl
1199
e5d5a95f
TF
1200TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1201 clock is set back in time.
1202
2e88a017
TF
1203TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1204 Candler <B.Candler@pobox.com>.
1205
a5f65aa4
TF
1206TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1207 OK for addresses that are the result of redirections.
1208
e7726cbf
PH
1209PH/48 A number of further additions for the benefit of the new test suite,
1210 including a fake gethostbyname() that interfaces to the fake DNS resolver
1211 (see PH/47 above).
1212
a7fdad5b
TF
1213TF/06 The fix for widen_domains has also been applied to qualify_single and
1214 search_parents which are the other dnslookup options that can cause
1215 header rewrites.
1216
6af56900
PH
1217PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1218 type ("H").
1219
0925ede6
PH
1220PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1221
66afa403
TF
1222TF/07 Exim produced the error message "an SRV record indicated no SMTP
1223 service" if it encountered an MX record with an empty target hostname.
1224 The message is now "an MX or SRV record indicated no SMTP service".
1225
0154e85a
TF
1226TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1227 if the DNS of the sending site is misconfigured. This is quite a
1228 common situation. This change restores the behaviour of treating a
1229 helo verification defer as a failure.
1230
16f12c76
PH
1231PH/51 If self=fail was set on a router, the bounce message did not include the
1232 actual error message.
1233
bbe902f0 1234
e5a9dba6
PH
1235Exim version 4.52
1236-----------------
1237
1238TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1239
22c3b60b
PH
1240PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1241 command itself ended in error, the underlying message about the transport
1242 filter timeout was being overwritten with the pipe command error. Now the
1243 underlying error message should be appended to the second error message.
1244
06a9b4b5
PH
1245TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1246
c1ac6996
PH
1247PH/02 Reduce the amount of output that "make" produces by default. Full output
1248 can still be requested.
1249
9c7a242c
PH
1250PH/03 The warning log line about a condition test deferring for a "warn" verb
1251 was being output only once per connection, rather than after each
1252 occurrence (because it was using the same function as for successful
1253 "warn" verbs). This seems wrong, so I have changed it.
1254
87ba3f5f
PH
1255TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1256 it should not have, which might have caused a crash in the right
1257 circumstances, but probably never did.
1258
1259PH/04 Installed a modified version of Tony Finch's patch to make submission
1260 mode fix the return path as well as the Sender: header line, and to
1261 add a /name= option so that you can make the user's friendly name appear
1262 in the header line.
1263
29aba418
TF
1264TF/03 Added the control = fakedefer ACL modifier.
1265
fe0dab11
TF
1266TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1267 Mark Lowes for thorough testing.
870f6ba8 1268
11d337a4
TK
1269TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1270
1271TK/03 Merged latest SRS patch from Miles Wilton.
1272
415c8f3b
PH
1273PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1274 with the definition in sysexits.h (which is #included earlier).
1275 Fortunately, Exim does not actually use EX_OK. The code used to try to
1276 preserve the sysexits.h value, by assumimg that macro definitions were
1277 scanned for macro replacements. I have been disabused of this notion,
1278 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1279
958541e9
PH
1280PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1281 in the smtp transport. When a block could not be written in a single
1282 write() function, the timeout was being re-applied to each part-write.
1283 This seems wrong - if the receiver was accepting one byte at a time it
1284 would take for ever. The timeout is now adjusted when this happens. It
1285 doesn't have to be particularly precise.
1286
c206415f
TK
1287TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1288 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1289
2a4be8f9
PH
1290PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1291 without a domain if the check to <postmaster@domain> fails.
1292
1cba11c5
SC
1293SC/01 Eximstats: added -xls and the ability to specify output files
1294 (patch written by Frank Heydlauf).
1295
1296SC/02 Eximstats: use FileHandles for outputing results.
1297
1298SC/03 Eximstats: allow any combination of xls, txt, and html output.
1299
1300SC/04 Eximstats: fixed display of large numbers with -nvr option
1301
1302SC/05 Eximstats: fixed merging of reports with empty tables.
1303
1304SC/06 Eximstats: added the -include_original_destination flag
1305
1306SC/07 Eximstats: removed tabs and trailing whitespace.
1307
1005d00e
TK
1308TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1309
1310TK/06 MBOX spool code: Add real "From " MBOX separator line
1311 so the .eml file is really in mbox format (even though
1312 most programs do not really care). Patch from Alex Miller.
1313
1314TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1315 The latter is generated from $received_to and is only set if the
1316 message has one envelope recipient. SA can use these headers,
1317 obviously out-of-the-box. Patch from Alex Miller.
1318
9b4768fa
PH
1319PH/08 The ${def test on a variable was returning false if the variable's
1320 value was "0", contrary to what the specification has always said!
1321 The result should be true unless the variable is empty.
1322
1323PH/09 The syntax error of a character other than { following "${if
1324 def:variable_name" (after optional whitespace) was not being diagnosed.
1325 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1326 accidental colon was present, for example, could give incorrect results.
1327
0d7eb84a
PH
1328PH/10 Tidied the code in a number of places where the st_size field of a stat()
1329 result is used (not including appendfile, where other changes are about
1330 to be made).
1331
1332PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1333 This involved changing a lot of size variables from int to off_t. It
1334 should work with maildirs and everything.
1335
40727bee
TK
1336TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1337 spamd dying while we are connected to it.
1338
554d2369
TF
1339TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1340 <jgh@wizmail.org>
1341
1f922db1
PH
1342PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1343 function for BDB 4.3.
1344
ef213c3b
PH
1345PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1346
8ac170f3
PH
1347PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1348 the sources for PCRE have been re-arranged and more files are now
1349 involved.
1350
b1c749bb
PH
1351PH/15 The code I had for printing potentially long long variables in PH/11
1352 above was not the best (it lost precision). The length of off_t variables
1353 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1354 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1355 to be "long long int" or "long int". This is needed for the internal
1356 formatting function string_vformat().
b1c749bb 1357
4aac9b49
PH
1358PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1359 the configuration file to be ":syslog", then the script "guesses" where
1360 the logs files are, rather than using the compiled in default. In our
1361 case the guess is not the same as the compiled default, so the script
1362 suddenly stopped working when I started to use syslog. The patch checks
1363 to see if log_file_path is "". If so, it attempts to read it from exim
1364 with no configuration file to get the compiled in version, before it
1365 falls back to the previous guessing code."
1366
294520c8
TK
1367TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1368 implementing BATV in an Exim configuration. See NewStuff for the gory
1369 details.
1370
5bd022fe
PH
1371PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1372 Makefile that are specific to HP-UX.
1373
90e9ce59
PH
1374PH/18 If the "use_postmaster" option was set for a recipient callout together
1375 with the "random" option, the postmaster address was used as the MAIL
1376 FROM address for the random test, but not for the subsequent recipient
1377 test. It is now used for both.
1378
5ea81592
PH
1379PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1380 patch removes a few documentation additions to RFC 3028, because the
1381 latest draft now contains them. It adds the new en;ascii-case comparator
1382 and a new error check for 8bit text in MIME parts. Comparator and
1383 require names are now matched exactly. I enabled the subaddress
1384 extension, but it is not well tested yet (read: it works for me)."
1385
c6c2dc1d
PH
1386PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1387 rework some of the code of TK/09 above to avoid the hardwired use of
1388 "%lld" and "long long". Replaced the call to snprintf() with a call to
1389 string_vformat().
1390
fffffe4c
PH
1391PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1392 records point to non-existent hosts", "retry timeout exceeded", and
1393 "retry time not reached for any host after a long failure period".
ca02eafb 1394
9a26b6b2
PH
1395PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1396 experimental DomainKeys support:
1397
1398 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1399 (2) On an error such as an illegally used "control", the wrong name for
1400 the control was given.
1401
1402 These problems did NOT occur unless DomainKeys support was compiled.
1403
4aee0225
PH
1404PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1405
32d668a5
PH
1406PH/24 Added ${if match_ip condition.
1407
8187c3f3
PH
1408PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1409 databases so that it will be absolutely obvious if a crash occurs in the
1410 DB library. This is a regular occurrence (often caused by mis-matched
1411 db.h files).
1412
ff790e47 1413PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1414 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1415 picked up on a user's system that detects such things. There doesn't seem
1416 to be a gcc warning option for this - only an attribute that has to be
1417 put on the function's prototype. It seems that in Fedora Core 4 they have
1418 set this on a number of new functions. No doubt there will be more in due
1419 course.
ff790e47 1420
5417f6d1
PH
1421PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1422 specify a transport. However, if an address that was verified by such a
1423 router was the subject of a callout, Exim crashed because it tried to
1424 read the rcpt_include_affixes from the non-existent transport. Now it
1425 just assumes that the setting of that option is false. This bug was
1426 introduced by 4.51/PH/31.
1427
59cf8544
PH
1428PH/28 Changed -d+all to exclude +memory, because that information is very
1429 rarely of interest, but it makes the output a lot bigger. People tend to
1430 do -d+all out of habit.
1431
e7ad8a65
PH
1432PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1433 code in os-type was giving problems when libc.so lives in lib64, like on
1434 x86_64 Fedora Core.
1435
ade42478
PH
1436PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1437 aren't the modern standard, and it seems that some systems' include files
1438 don't always have them. Exim was already checking for some of the newer
1439 ones like T_AAAA, and defining it itself. I've added checks for all the
1440 record types that Exim uses.
1441
182ad5cf
PH
1442PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1443 not automatically generating a new one, as it is supposed to. This
1444 prevented TLS from working. If the file did exist, but contained invalid
1445 data, a new version was generated, as expected. It was only the case of a
1446 non-existent file that was broken.
1447
b0d9fc80
TK
1448TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1449 with a change in libdomainkeys > 0.64.
1450
1451TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1452 from DNS. If the selector record carries the flag, it now has
1453 precedence over the domain-wide flag.
1454
1455TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1456
47c7a64a
PH
1457PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1458 the use of a port name that isn't defined in /etc/services) occurred, the
1459 message was deferred as in a normal delivery, and thus remained on the
1460 spool, instead of being failed because of the mua_wrapper setting. This
1461 is now fixed, and I tidied up some of the mua_wrapper messages at the
1462 same time.
1463
a388bce4
SC
1464SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1465 the messages in a hash of arrays rather than using individual hashes.
1466 This is a bit cleaner and results in dramatic memory savings, albeit
1467 at a slight CPU cost.
1468
1469SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1470 as requested by Marc Sherman.
1471
1472SC/10 Eximstats: added histograms for user specified patterns as requested
1473 by Marc Sherman.
1474
0793e4ed
SC
1475SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1476
c58b88df
PH
1477PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1478 fopen() in the content-scanning modules that did not already have it.
1479
e7ad8a65 1480
7982096b
PH
1481Exim version 4.51
1482-----------------
1483
1a46a8c5
PH
1484TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1485 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1486
2f079f46 1487TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1488
1489TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1490
1491PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1492 to test Sieve filters that use "vacation".
1493
1494PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1495 that changes the way the GnuTLS parameters are stored in the cache file.
1496 The new format can be generated externally. For backward compatibility,
1497 if the data in the cache doesn't make sense, Exim assumes it has read an
1498 old-format file, and it generates new data and writes a new file. This
1499 means that you can't go back to an older release without removing the
1500 file.
1501
1502PH/03 A redirect router that has both "unseen" and "one_time" set does not
1503 work if there are any delivery delays because "one_time" forces the
1504 parent to be marked "delivered", so its unseen clone is never tried
1505 again. For this reason, Exim now forbids the simultaneous setting of
1506 these two options.
1507
1508PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1509 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1510 entry if you want to know the details. The fix, however, neglected to
1511 consider the case when local delivery batching is involved. The test for
1512 "previously delivered" was not happening when checking to see if an
1513 address could be batched with a previous (undelivered) one; under
1514 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1515 address.
1a46a8c5
PH
1516
1517PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1518 in its include files, and this causes problems building Exim.
1519
1520PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1521 header_syntax) but Exim was just ignoring anything given after a slash.
1522 In particular, this caused confusion with an attempt to use "verify =
1523 reverse_host_lookup/defer_ok". An error is now given when options are
1524 supplied for verify items that do not have them. (Maybe reverse_host_
1525 lookup should have a defer_ok option, but that's a different point.)
1526
1527PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1528 defined by RFC 821) to 2048, because there were problems with some AUTH
1529 commands, and RFC 1869 says the size should be increased for extended
1530 SMTP commands that take arguments.
1531
1532PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1533 Finch).
1534
1535PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1536 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1537
49c2d5ea
PH
1538PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1539 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1540 whatever). Otherwise the password may appear in the log. Following change
1541 PH/42 below, there is no longer a chance of it appearing in a bounce
1542 message.
49c2d5ea 1543
bf759a8b
PH
1544PH/11 Installed exipick version 20050225.0 from John Jetmore.
1545
83364d30
PH
1546PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1547 of its addresses was ever tried. (Bugzilla bug #2.)
1548
7999bbd7
PH
1549PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1550 the result incorrectly in the debug output. (It correctly added a newline
1551 to what was transported.)
1552
7dbf77c9
PH
1553TF/01 Added $received_time.
1554
74e0617f
PH
1555PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1556 commented out examples of how to interface to a virus scanner and to
1557 SpamAssassin. Also added commented examples of av_scanner and
1558 spamd_address settings.
1559
2f079f46
PH
1560PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1561 and controls are allowed in which ACLs. There were a couple of minor
1562 errors. Some of the entries in the conditions table (which is a table of
1563 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1564 negation of where the condition IS allowed.
1565
8c841523
PH
1566PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
1567
7766a4f0
PH
1568PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
1569 header file does not have a version number, so I've had to invent a new
1570 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
1571 API. The code is untested by me (my Linux distribution still has 0.3.2 of
1572 radiusclient), but it was contributed by a Radius user.
1573
8b417f2c
PH
1574PH/18 Installed Lars Mainka's patch for the support of CRL collections in
1575 files or directories, for OpenSSL.
1576
901f42cb
PH
1577PH/19 When an Exim process that is running as root has to create an Exim log
1578 file, it does so in a subprocess that runs as exim:exim so as to get the
1579 ownership right at creation (otherwise, other Exim processes might see
1580 the file with the wrong ownership). There was no test for failure of this
1581 fork() call, which would lead to the process getting stuck as it waited
1582 for a non-existent subprocess. Forks do occasionally fail when resources
1583 run out. I reviewed all the other calls to fork(); they all seem to check
1584 for failure.
1585
f9b9210e
PH
1586PH/20 When checking for unexpected SMTP input at connect time (before writing
1587 the banner), Exim was not dealing correctly with a non-positive return
1588 from the read() function. If the client had disconnected by this time,
1589 the result was a log entry for a synchronization error with an empty
1590 string after "input=" when read() returned zero. If read() returned -1
1591 (an event I could not check), uninitialized data bytes were printed.
1592 There were reports of junk text (parts of files, etc) appearing after
1593 "input=".
1594
54cdb463
PH
1595PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
1596
cf00dad6
PH
1597PH/22 Added support for macro redefinition, and (re)definition in between
1598 driver and ACL definitions.
1599
acb1b346
PH
1600PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
1601 forgetting to use the resulting value; it was using the unexpanded value.
1602
c5ddb310
PH
1603PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
1604 hadn't been configured. The fix is from Juergen Kreileder, who
1605 understands it better than I do:
1606
1607 "Here's what I see happening with three configured cyrus_sasl
1608 authenticators configured (plain, login, cram-md5):
1609
1610 On startup auth_cyrus_sasl_init() gets called for each of these.
1611 This means three calls to sasl_listmech() without a specified mech_list.
1612 => SASL tests which mechs of all available mechs actually work
1613 => three warnings about OTP not working
1614 => the returned list contains: plain, login, cram-md5, digest-md5, ...
1615
1616 With the patch, sasl_listmech() also gets called three times. But now
1617 SASL's mech_list option is set to the server_mech specified in the the
1618 authenticator. Or in other words, the answer from sasl_listmech()
1619 gets limited to just the mech you're testing for (which is different
1620 for each call.)
1621 => the return list contains just 'plain' or 'login', 'cram-md5' or
1622 nothing depending on the value of ob->server_mech.
1623
1624 I've just tested the patch: Authentication still works fine,
1625 unavailable mechs specified in the exim configuration are still
1626 caught, and the auth.log warnings about OTP are gone."
1627
31619da6
PH
1628PH/25 When debugging is enabled, the contents of the command line are added
1629 to the debugging output, even when log_selector=+arguments is not
1630 specified.
1631
bebaf0fc
PH
1632PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
1633 answer is "GNU", and only if the return is "GNU/something" is the answer
1634 "Linux".
1635
475fe28a
PH
1636PH/27 $acl_verify_message is now set immediately after the failure of a
1637 verification in an ACL, and so is available in subsequent modifiers. In
1638 particular, the message can be preserved by coding like this:
1639
1640 warn !verify = sender
1641 set acl_m0 = $acl_verify_message
1642
1643 Previously, $acl_verify_message was set only while expanding "message"
1644 and "log_message" when a very denied access.
1645
7e8bec7a
PH
1646PH/28 Modified OS/os.c-Linux with
1647
1648 -#ifndef OS_LOAD_AVERAGE
1649 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
1650
1651 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
1652 nomenclature these days.)
1653
e4a89c47
PH
1654PH/29 Installed patch from the Sieve maintainer that adds the options
1655 sieve_useraddress and sieve_subaddress to the redirect router.
1656
5ca2a9a1
PH
1657PH/30 In these circumstances:
1658 . Two addresses routed to the same list of hosts;
1659 . First host does not offer TLS;
1660 . First host accepts first address;
1661 . First host gives temporary error to second address;
1662 . Second host offers TLS and a TLS session is established;
1663 . Second host accepts second address.
1664 Exim incorrectly logged both deliveries with the TLS parameters (cipher
1665 and peerdn, if requested) that were in fact used only for the second
1666 address.
7e8bec7a 1667
c688b954
PH
1668PH/31 When doing a callout as part of verifying an address, Exim was not paying
1669 attention to any local part prefix or suffix that was matched by the
1670 router that accepted the address. It now behaves in the same way as it
1671 does for delivery: the affixes are removed from the local part unless
1672 rcpt_include_affixes is set on the transport.
1673
fed77020
PH
1674PH/32 Add the sender address, as F=<...>, to the log line when logging a
1675 timeout during the DATA phase of an incoming message.
1676
7fe1560f
PH
1677PH/33 Sieve envelope tests were broken for match types other than :is. I have
1678 applied a patch sanctioned by the Sieve maintainer.
c688b954 1679
ebb6e6d5
PH
1680PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
1681 the uid or gid is negative. A case of a negative gid caused this to be
1682 noticed. The fix allows for either to be negative.
1683
9c4e8f60
PH
1684PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
1685 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
1686 overlooked.
1687
1688PH/36 The change PH/12 above was broken. Fixed it.
1689
d7174846
PH
1690PH/37 Exim used to check for duplicate addresses in the middle of routing, on
1691 the grounds that routing the same address twice would always produce the
1692 same answer. This might have been true once, but it is certainly no
1693 longer true now. Routing a child address may depend on the previous
1694 routing that produced that child. Some complicated redirection strategies
1695 went wrong when messages had multiple recipients, and made Exim's
1696 behaviour dependent on the order in which the addresses were given.
1697
1698 I have moved the duplicate checking until after the routing is complete.
1699 Exim scans the addresses that are assigned to local and remote
1700 transports, and removes any duplicates. This means that more work will be
1701 done, as duplicates will always all be routed, but duplicates are
1702 presumably rare, so I don't expect this is of any significance.
1703
1704 For deliveries to pipes, files, and autoreplies, the duplicate checking
1705 still happens during the routing process, since they are not going to be
1706 routed further.
1707
cfe75fc3
PH
1708PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
1709 It corrects a timeout issue with spamd. This is Ian's comment: "The
1710 background is that sometimes spamd either never reads data from a
1711 connection it has accepted, or it never writes response data. The exiscan
1712 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
1713 blindly assumes that writes won't block so it may never time out."
1714
be22d70e
PH
1715PH/39 Allow G after quota size as well as K and M.
1716
0612b098
PH
1717PH/40 The value set for $authenticated_id in an authenticator may not contain
1718 binary zeroes or newlines because the value is written to log lines and
1719 to spool files. There was no check on this. Now the value is run through
1720 the string_printing() function so that such characters are converted to
1721 printable escape sequences.
1722
2e0c1448
PH
1723PH/41 $message_linecount is a new variable that contains the total number of
1724 lines in the message. Compare $body_linecount, which is the count for the
1725 body only.
1726
447d236c
PH
1727PH/42 Exim no longer gives details of delivery errors for specific addresses in
1728 bounce and delay warning messages, except in certain special cases, which
1729 are as follows:
1730
1731 (a) An SMTP error message from a remote host;
1732 (b) A message specified in a :fail: redirection;
1733 (c) A message specified in a "fail" command in a system filter;
1734 (d) A message specified in a FAIL return from the queryprogram router;
1735 (e) A message specified by the cannot_route_message router option.
1736
1737 In these cases only, Exim does include the error details in bounce and
1738 warning messages. There are also a few cases where bland messages such
1739 as "unrouteable address" or "local delivery error" are given.
1740
d20976dc
PH
1741PH/43 $value is now also set for the "else" part of a ${run expansion.
1742
f656d135
PH
1743PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
1744 being worked on, but at least Exim now implements the latest version to
1745 play with."
1746
2e2a30b4
PH
1747PH/45 In a pipe transport, although a timeout while waiting for the pipe
1748 process to complete was treated as a delivery failure, a timeout while
1749 writing the message to the pipe was logged, but erroneously treated as a
1750 successful delivery. Such timeouts include transport filter timeouts. For
1751 consistency with the overall process timeout, these timeouts are now
1752 treated as errors, giving rise to delivery failures by default. However,
1753 there is now a new Boolean option for the pipe transport called
1754 timeout_defer, which, if set TRUE, converts the failures into defers for
1755 both kinds of timeout. A transport filter timeout is now identified in
1756 the log output.
1757
9176e9f0
PH
1758PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
1759 systems where "make" and "gmake" are different, calling "gmake" at top
1760 level broke things. I've arranged for the value of $(MAKE) to be passed
1761 from the Makefile to this script so that it can call the same version of
1762 "make".
1763
7982096b 1764
bbe902f0
PH
1765A note about Exim versions 4.44 and 4.50
1766----------------------------------------
1767
1768Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
1769changes of various kinds. As a consequence, a big documentation update was
1770needed. This delayed the release for rather longer than seemed good, especially
1771in the light of a couple of (minor) security issues. Therefore, the changes
1772that fixed bugs were backported into 4.43, to create a 4.44 maintenance
1773release. So 4.44 and 4.50 are in effect two different branches that both start
1774from 4.43.
1775
1776I have left the 4.50 change log unchanged; it contains all the changes since
17774.43. The change log for 4.44 is below; many of its items are identical to
1778those for 4.50. This seems to be the most sensible way to preserve the
1779historical information.
1780
1781
f7b63901 1782Exim version 4.50
495ae4b0
PH
1783-----------------
1784
5fe762f6
PH
1785 1. Minor wording change to the doc/README.SIEVE file.
1786
139059f6 1787 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 1788 computation of the current number of files was incorrect.
495ae4b0 1789
7086e875
PH
1790 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
1791 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
1792 place.
1793
35af9f61
PH
1794 4. Give more explanation in the error message when the command for a transport
1795 filter fails to execute.
1796
b668c215
PH
1797 5. There are several places where Exim runs a non-Exim command in a
1798 subprocess. The SIGUSR1 signal should be disabled for these processes. This
1799 was being done only for the command run by the queryprogram router. It is
1800 now done for all such subprocesses. The other cases are: ${run, transport
1801 filters, and the commands run by the lmtp and pipe transports.
1802
a494b1e1
PH
1803 6. Added CONFIGURE_GROUP build-time option.
1804
1805 7. Some older OS have a limit of 256 on the maximum number of file
1806 descriptors. Exim was using setrlimit() to set 1000 as a large value
1807 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
1808 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 1809
c5fcb476
PH
1810 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
1811 was an oversight, and furthermore, ever since the addition of extra
1812 controls (e.g. 4.43/32), the checks on when to allow different forms of
1813 "control" were broken. There should now be diagnostics for all cases when a
1814 control that does not make sense is encountered.
1815
69358f02
PH
1816 9. Added the /retain_sender option to "control=submission".
1817
5be20824
PH
181810. $recipients is now available in the predata ACL (oversight).
1819
eb2c0248
PH
182011. Tidy the search cache before the fork to do a delivery from a message
1821 received from the command line. Otherwise the child will trigger a lookup
1822 failure and thereby defer the delivery if it tries to use (for example) a
1823 cached ldap connection that the parent has called unbind on.
1824
2a3eea10
PH
182512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
1826 of $address_data from the recipient verification was clobbered by the
1827 sender verification.
1828
182913. The value of address_data from a sender verification is now available in
1830 $sender_address_data in subsequent conditions in the ACL statement.
1831
23c7ff99
PH
183214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
1833
4deaf07d
PH
183415. Added a new option "connect=<time>" to callout options, to set a different
1835 connection timeout.
1836
926e1192
PH
183716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
1838 was its contents. (It was OK if the option was not defined at all.)
1839
650edc6f
PH
184017. A "Completed" log line is now written for messages that are removed from
1841 the spool by the -Mrm option.
1842
2c7db3f5
PH
184318. New variables $sender_verify_failure and $recipient_verify_failure contain
1844 information about exactly what failed.
1845
3d235903
PH
184619. Added -dd to debug only the daemon process.
1847
7c7ad977
PH
184820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
1849 handles timeouts, both on the server side and network timeouts. Renamed the
1850 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
1851
981756db
PH
185221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
1853 It is now set to "smtps".
1854
d4eb88df
PH
185522. $host_address is now set to the target address during the checking of
1856 ignore_target_hosts.
1857
185823. When checking ignore_target_hosts for an ipliteral router, no host name was
1859 being passed; this would have caused $sender_host_name to have been used if
1860 matching the list had actually called for a host name (not very likely,
1861 since this list is usually IP addresses). A host name is now passed as
1862 "[x.x.x.x]".
1863
7d468ab8
PH
186424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
1865 code that specifies a non-restarting handler (typically sigaction() in
1866 modern systems) in an attempt to fix a rare and obscure crash bug.
1867
186825. Narrowed the window for a race in the daemon that could cause it to ignore
1869 SIGCHLD signals. This is not a major problem, because they are used only to
1870 wake it up if nothing else does.
1871
62c0818f
PH
187226. A malformed maildirsize file could cause Exim to calculate negative values
1873 for the mailbox size or file count. Odd effects could occur as a result.
1874 The maildirsize information is now recalculated if the size or filecount
1875 end up negative.
1876
26034054
PH
187727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
1878 support for a long time. Removed HAVE_SYS_VFS_H.
1879
af66f652
PH
188028. Installed the latest version of exipick from John Jetmore.
1881
90af77f4
PH
188229. In an address list, if the pattern was not a regular expression, an empty
1883 subject address (from a bounce message) matched only if the pattern was an
1884 empty string. Non-empty patterns were not even tested. This was the wrong
1885 because it is perfectly reasonable to use an empty address as part of a
1886 database query. An empty address is now tested by patterns that are
1887 lookups. However, all the other forms of pattern expect the subject to
1888 contain a local part and a domain, and therefore, for them, an empty
1889 address still always fails if the pattern is not itself empty.
1890
d8ef3577
PH
189130. Exim went into a mad DNS loop when attempting to do a callout where the
1892 host was specified on an smtp transport, and looking it up yielded more
1893 than one IP address.
1894
5cb8cbc6
PH
189531. Re-factored the code for checking spool and log partition space into a
1896 function that finds that data and another that does the check. The former
1897 is then used to implement four new variables: $spool_space, $log_space,
1898 $spool_inodes, and $log_inodes.
1899
14702f5b
PH
190032. The RFC2047 encoding function was originally intended for short strings
1901 such as real names; it was not keeping to the 75-character limit for
1902 encoded words that the RFC imposes. It now respects the limit, and
1903 generates multiple encoded words if necessary. To be on the safe side, I
1904 have increased the buffer size for the ${rfc2047: expansion operator from
1905 1024 to 2048 bytes.
1906
063b1e99
PH
190733. It is now permitted to omit both strings after an "if" condition; if the
1908 condition is true, the result is "true". As before, when the second string
1909 is omitted, a false condition yields an empty string. This makes it less
1910 cumbersome to write custom ACL and router conditions.
1911
652e1b65
PH
191234. Failure to deliver a bounce message always caused it to be frozen, even if
1913 there was an errors_to setting on the router. The errors_to setting is now
1914 respected.
1915
6f0c9a4f
PH
191635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
1917 canonical form (fully expanded) before being placed in
1918 $sender_host_address.
1919
33397d19
PH
192036. The table in the code that translates DNS record types into text (T_A to
1921 "A" for instance) was missing entries for NS and CNAME. It is just possible
1922 that this could have caused confusion if both these types were looked up
1923 for the same domain, because the text type is used as part of Exim's
1924 per-process caching. But the chance of anyone hitting this buglet seems
1925 very small.
1926
7bb56e1f
PH
192737. The dnsdb lookup has been extended in a number of ways.
1928
1929 (1) There is a new type, "zns", which walks up the domain tree until it
1930 finds some nameserver records. It should be used with care.
1931
ea3bc19b
PH
1932 (2) There is a new type, "mxh", which is like "mx" except that it returns
1933 just the host names, not the priorities.
1934
1935 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
1936 looked up. The behaviour when one of the lookups defers can be
1937 controlled by a keyword.
7bb56e1f 1938
ea3bc19b 1939 (4) It is now possible to specify the separator character for use when
7bb56e1f 1940 multiple records are returned.
33397d19 1941
0bcb2a0e
PH
194238. The dnslists ACL condition has been extended: it is now possible to supply
1943 a list of IP addresses and/or domains to be looked up in a particular DNS
1944 domain.
1945
2ac0e484
PH
194639. Added log_selector=+queue_time_overall.
1947
4e1fde53
PH
194840. When running the queue in the test harness, wait just a tad after forking a
1949 delivery process, to get repeatability of debugging output.
1950
de365ded
PH
195141. Include certificate and key file names in error message when GnuTLS fails
1952 to set them up, because the GnuTLS error message doesn't include the name
1953 of the failing file when there is a problem reading it.
1954
f05da2e8
PH
195542. Allow both -bf and -bF in the same test run.
1956
d6453af2
PH
195743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
1958
f7b63901
PH
195944. The "Exiscan patch" is now merged into the mainline Exim source.
1960
196145. Sometimes the final signoff response after QUIT could fail to get
1962 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
1963 < 0 before doing a fflush(). This bug looks as though it goes back to the
1964 introduction of TLS in release 3.20, but "sometimes" must have been rare
1965 because the tests only now provoked it.
1966
a444213a
PH
196746. Reset the locale to "C" after calling embedded Perl, in case it was changed
1968 (this can affect the format of dates).
1969
0ec020ea
PH
197047. exim_tidydb, when checking for the continued existence of a message for
1971 which it has found a message-specific retry record, was not finding
1972 messages that were in split spool directories. Consequently, it was
1973 deleting retry records that should have stayed in existence.
1974
b1206957
PH
197548. Steve fixed some bugs in eximstats.
1976
197749. The SPA authentication driver was not abandoning authentication and moving
1978 on to the next authenticator when an expansion was forced to fail,
1979 contradicting the general specification for all authenticators. Instead it
1980 was generating a temporary error. It now behaves as specified.
1981
26dd5a95
PH
198250. The default ordering of permitted cipher suites for GnuTLS was pessimal
1983 (the order specifies the preference for clients). The order is now AES256,
1984 AES128, 3DES, ARCFOUR128.
1985
343b2385
PH
198651. Small patch to Sieve code - explicitly set From: when generating an
1987 autoreply.
1988
1c5466b9
PH
198952. Exim crashed if a remote delivery caused a very long error message to be
1990 recorded - for instance if somebody sent an entire SpamAssassin report back
1991 as a large number of 550 error lines. This bug was coincidentally fixed by
1992 increasing the size of one of Exim's internal buffers (big_buffer) that
1993 happened as part of the Exiscan merge. However, to be on the safe side, I
1994 have made the code more robust (and fixed the comments that describe what
1995 is going on).
1996
55ee9ee3
PH
199753. Now that there can be additional text after "Completed" in log lines (if
1998 the queue_time_overall log selector is set), a one-byte patch to exigrep
1999 was needed to allow it to recognize "Completed" as not the last thing in
2000 the line.
2001
d38f8232
PH
200254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2003 patch that reportedly fixes this has been added. I am not expert enough to
2004 create a test for it. This is what the patch creator wrote:
2005
2006 "I found a little strange behaviour of ldap code when working with
2007 Windows 2003 AD Domain, where users was placed in more than one
2008 Organization Units. When I tried to give exim partial DN, the exit code
2009 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2010 But simultaneously result of request was absolutely normal ldap result,
2011 so I produce this patch..."
2012
3295e65b
PH
2013 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2014 REFERENCE, so I have modified the code to exclude the patch when that macro
2015 is not defined.
2016
7102e136
PH
201755. Some experimental protocols are using DNS PTR records for new purposes. The
2018 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2019 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2020 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2021 CAN-2005-0021
7102e136 2022
3ca0ba97
PH
202356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2024
c2bcbe20
PH
202557. Double the size of the debug message buffer (to 2048) so that more of very
2026 long debug lines gets shown.
2027
18ce445d
PH
202858. The exicyclog utility now does better if the number of log files to keep
2029 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2030
1f5b4c3d
PH
203159. Two changes related to the smtp_active_hostname option:
2032
2033 (1) $smtp_active_hostname is now available as a variable.
2034 (2) The default for smtp_banner uses $smtp_active_hostname instead
2035 of $primary_hostname.
2036
b975ba52
PH
203760. The host_aton() function is supposed to be passed a string that is known
2038 to be a valid IP address. However, in the case of IPv6 addresses, it was
2039 not checking this. This is a hostage to fortune. Exim now panics and dies
2040 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2041 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2042 components; fortuitously, this particular loophole had already been fixed
2043 by change 4.50/55 above.
2044
2045 If there are any other similar loopholes, the new check in host_aton()
2046 itself should stop them being exploited. The report I received stated that
2047 data on the command line could provoke the exploit when Exim was running as
2048 exim, but did not say which command line option was involved. All I could
2049 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2050 running as the user.
ea3a6f44 2051 CAN-2005-0021
85b87bc2
PH
2052
205361. There was a buffer overflow vulnerability in the SPA authentication code
2054 (which came originally from the Samba project). I have added a test to the
2055 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2056 CAN-2005-0022
b975ba52 2057
17ffcae7
PH
205862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2059 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2060
d95f9fdb
PH
206163. The daemon start-up calls getloadavg() while still root for those OS that
2062 need the first call to be done as root, but it missed one case: when
2063 deliver_queue_load_max is set with deliver_drop_privilege. This is
2064 necessary for the benefit of the queue runner, because there is no re-exec
2065 when deliver_drop_privilege is set.
2066
86b8287f
PH
206764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2068 This has been fixed.
2069
60dc5e56
PH
207065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2071 was in use, was not putting the data itself into the right store pool;
2072 consequently, it could be overwritten for a subsequent message in the same
2073 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2074 the caching.)
2075
533244af
PH
207666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2077
a5a28604
PH
207867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2079 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2080 the function were treating the return as a boolean value, which happened to
2081 work because 0=false and not-0=true, but is not correct code.
2082
7e634d24
PH
208368. The host_aton() function was not handling scoped IPv6 addresses (those
2084 with, for example, "%eth0" on the end) correctly.
2085
3e11c26b
PH
208669. Fixed some compiler warnings in acl.c for the bitmaps specified with
2087 negated items (that is, ~something) in unsigned ints. Some compilers
2088 apparently mutter when there is no cast.
2089
6729cf78
PH
209070. If an address verification called from an ACL failed, and did not produce a
2091 user-specific message (i.e. there was only a "system" message), nothing was
2092 put in $acl_verify_message. In this situation, it now puts the system
2093 message there.
2094
00f00ca5
PH
209571. Change 4.23/11 added synchronization checking at the start of an SMTP
2096 session; change 4.31/43 added the unwanted input to the log line - except
2097 that it did not do this in the start of session case. It now does.
2098
c9bdd01c
PH
209972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2100 This is wrong and can cause the other end to generate a synchronization
2101 error if it is another Exim or anything else that does the synchronization
2102 check. A QUIT command is no longer sent after a timeout.
2103
d43194df
PH
210473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2105 during host lookups.
2106
fe5b5d0b
PH
210774. The defer_ok option of callout verification was not working if it was used
2108 when verifying addresses in header lines, that is, for this case:
2109
2110 verify = header_sender/callout=defer_ok
2111
76a2d7ba
PH
211275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2113 those file descriptors could be used for SMTP connections. If anything
2114 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2115 could be sent to the SMTP client, causing chaos. The daemon now opens
2116 stdin, stdout, and stderr to /dev/null when it puts itself into the
2117 background.
2118
211976. Arrange for output from Perl's "warn" command to be written to Exim's main
2120 log by default. The user can override this with suitable Perl magic.
2121
04f7d5b9
PH
212277. The use of log_message on a "discard" ACL verb, which is supposed to add to
2123 the log message when discard triggers, was not working for the DATA ACL or
2124 for the non-SMTP ACL.
2125
bc60667e
PH
212678. Error message wording change in sieve.c.
2127
bb6e88ff
PH
212879. If smtp_accept_max_per_host was set, the number of connections could be
2129 restricted to fewer than expected, because the daemon was trying to set up
2130 a new connection before checking whether the processes handling previous
2131 connections had finished. The check for completed processes is now done
2132 earlier. On busy systems, this bug wouldn't be noticed because something
2133 else would have woken the daemon, and it would have reaped the completed
2134 process earlier.
2135
1e70f85b
PH
213680. If a message was submitted locally by a user whose login name contained one
2137 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2138 It caused a spool format error. I have fixed the spool reading code. A
2139 related problem was that the "from" clause in the Received: line became
2140 illegal because of the space(s). It is now covered by ${quote_local_part.
2141
214281. Included the latest eximstats from Steve (adds average sizes to HTML Top
2143 tables).
2144
4e01f9d6
PH
214582. Updated OS/Makefile-AIX as per message from Mike Meredith.
2146
1ee1cef2
PH
214783. Patch from Sieve maintainer to fix unterminated string problem in
2148 "vacation" handling.
2149
6e2b4ccc
PH
215084. Some minor changes to the Linux configuration files to help with other
2151 OS variants using glibc.
2152
8e669ac1
PH
215385. One more patch for Sieve to update vacation handling to latest spec.
2154
495ae4b0 2155
bbe902f0
PH
2156----------------------------------------------------
2157See the note above about the 4.44 and 4.50 releases.
2158----------------------------------------------------
2159
2160
2161Exim version 4.44
2162-----------------
2163
2164 1. Change 4.43/35 introduced a bug that caused file counts to be
2165 incorrectly computed when quota_filecount was set in an appendfile
2166 transport
2167
2168 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2169 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2170 place.
2171
2172 3. Give more explanation in the error message when the command for a transport
2173 filter fails to execute.
2174
2175 4. There are several places where Exim runs a non-Exim command in a
2176 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2177 was being done only for the command run by the queryprogram router. It is
2178 now done for all such subprocesses. The other cases are: ${run, transport
2179 filters, and the commands run by the lmtp and pipe transports.
2180
2181 5. Some older OS have a limit of 256 on the maximum number of file
2182 descriptors. Exim was using setrlimit() to set 1000 as a large value
2183 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2184 systems. I've change it so that if it can't get 1000, it tries for 256.
2185
2186 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2187 was an oversight, and furthermore, ever since the addition of extra
2188 controls (e.g. 4.43/32), the checks on when to allow different forms of
2189 "control" were broken. There should now be diagnostics for all cases when a
2190 control that does not make sense is encountered.
2191
2192 7. $recipients is now available in the predata ACL (oversight).
2193
2194 8. Tidy the search cache before the fork to do a delivery from a message
2195 received from the command line. Otherwise the child will trigger a lookup
2196 failure and thereby defer the delivery if it tries to use (for example) a
2197 cached ldap connection that the parent has called unbind on.
2198
2199 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2200 of $address_data from the recipient verification was clobbered by the
2201 sender verification.
2202
220310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2204 was its contents. (It was OK if the option was not defined at all.)
2205
220611. A "Completed" log line is now written for messages that are removed from
2207 the spool by the -Mrm option.
2208
220912. $host_address is now set to the target address during the checking of
2210 ignore_target_hosts.
2211
221213. When checking ignore_target_hosts for an ipliteral router, no host name was
2213 being passed; this would have caused $sender_host_name to have been used if
2214 matching the list had actually called for a host name (not very likely,
2215 since this list is usually IP addresses). A host name is now passed as
2216 "[x.x.x.x]".
2217
221814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2219 code that specifies a non-restarting handler (typically sigaction() in
2220 modern systems) in an attempt to fix a rare and obscure crash bug.
2221
222215. Narrowed the window for a race in the daemon that could cause it to ignore
2223 SIGCHLD signals. This is not a major problem, because they are used only to
2224 wake it up if nothing else does.
2225
222616. A malformed maildirsize file could cause Exim to calculate negative values
2227 for the mailbox size or file count. Odd effects could occur as a result.
2228 The maildirsize information is now recalculated if the size or filecount
2229 end up negative.
2230
223117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2232 support for a long time. Removed HAVE_SYS_VFS_H.
2233
ea3a6f44 223418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2235
223619. Allow an empty sender to be matched against a lookup in an address list.
2237 Previously the only cases considered were a regular expression, or an
2238 empty pattern.
2239
224020. Exim went into a mad DNS lookup loop when doing a callout where the
2241 host was specified on the transport, if the DNS lookup yielded more than
2242 one IP address.
2243
ea3a6f44
NM
224421. The RFC2047 encoding function was originally intended for short strings
2245 such as real names; it was not keeping to the 75-character limit for
2246 encoded words that the RFC imposes. It now respects the limit, and
2247 generates multiple encoded words if necessary. To be on the safe side, I
2248 have increased the buffer size for the ${rfc2047: expansion operator from
2249 1024 to 2048 bytes.
bbe902f0 2250
ea3a6f44
NM
225122. Failure to deliver a bounce message always caused it to be frozen, even if
2252 there was an errors_to setting on the router. The errors_to setting is now
2253 respected.
bbe902f0
PH
2254
225523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2256 canonical form (fully expanded) before being placed in
2257 $sender_host_address.
2258
225924. Updated eximstats to version 1.33
2260
ea3a6f44
NM
226125. Include certificate and key file names in error message when GnuTLS fails
2262 to set them up, because the GnuTLS error message doesn't include the name
2263 of the failing file when there is a problem reading it.
bbe902f0
PH
2264
226526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2266 As per change 25.
bbe902f0 2267
ea3a6f44
NM
226827. Reset the locale to "C" after calling embedded Perl, in case it was changed
2269 (this can affect the format of dates).
bbe902f0 2270
ea3a6f44
NM
227128. exim_tidydb, when checking for the continued existence of a message for
2272 which it has found a message-specific retry record, was not finding
2273 messages that were in split spool directories. Consequently, it was
2274 deleting retry records that should have stayed in existence.
bbe902f0
PH
2275
227629. eximstats updated to version 1.35
2277 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2278 1.35 - bugfix such that pie charts by volume are generated correctly
2279
ea3a6f44
NM
228030. The SPA authentication driver was not abandoning authentication and moving
2281 on to the next authenticator when an expansion was forced to fail,
2282 contradicting the general specification for all authenticators. Instead it
2283 was generating a temporary error. It now behaves as specified.
bbe902f0 2284
ea3a6f44
NM
228531. The default ordering of permitted cipher suites for GnuTLS was pessimal
2286 (the order specifies the preference for clients). The order is now AES256,
2287 AES128, 3DES, ARCFOUR128.
bbe902f0 2288
ea3a6f44
NM
228931. Small patch to Sieve code - explicitly set From: when generating an
2290 autoreply.
bbe902f0 2291
ea3a6f44
NM
229232. Exim crashed if a remote delivery caused a very long error message to be
2293 recorded - for instance if somebody sent an entire SpamAssassin report back
2294 as a large number of 550 error lines. This bug was coincidentally fixed by
2295 increasing the size of one of Exim's internal buffers (big_buffer) that
2296 happened as part of the Exiscan merge. However, to be on the safe side, I
2297 have made the code more robust (and fixed the comments that describe what
2298 is going on).
bbe902f0 2299
ea3a6f44
NM
230033. Some experimental protocols are using DNS PTR records for new purposes. The
2301 keys for these records are domain names, not reversed IP addresses. The
2302 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2303 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2304 CAN-2005-0021
2305
ea3a6f44
NM
230634. The host_aton() function is supposed to be passed a string that is known
2307 to be a valid IP address. However, in the case of IPv6 addresses, it was
2308 not checking this. This is a hostage to fortune. Exim now panics and dies
2309 if the condition is not met. A case was found where this could be provoked
2310 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2311 components; fortuitously, this particular loophole had already been fixed
2312 by change 4.50/55 or 4.44/33 above.
2313
2314 If there are any other similar loopholes, the new check in host_aton()
2315 itself should stop them being exploited. The report I received stated that
2316 data on the command line could provoke the exploit when Exim was running as
2317 exim, but did not say which command line option was involved. All I could
2318 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2319 running as the user.
bbe902f0
PH
2320 CAN-2005-0021
2321
ea3a6f44
NM
232235. There was a buffer overflow vulnerability in the SPA authentication code
2323 (which came originally from the Samba project). I have added a test to the
2324 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2325 CAN-2005-0022
2326
ea3a6f44
NM
232736. The daemon start-up calls getloadavg() while still root for those OS that
2328 need the first call to be done as root, but it missed one case: when
2329 deliver_queue_load_max is set with deliver_drop_privilege. This is
2330 necessary for the benefit of the queue runner, because there is no re-exec
2331 when deliver_drop_privilege is set.
bbe902f0 2332
ea3a6f44
NM
233337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2334 was in use, was not putting the data itself into the right store pool;
2335 consequently, it could be overwritten for a subsequent message in the same
2336 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2337 the caching.)
bbe902f0 2338
ea3a6f44
NM
233938. Sometimes the final signoff response after QUIT could fail to get
2340 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2341 < 0 before doing a fflush(). This bug looks as though it goes back to the
2342 introduction of TLS in release 3.20, but "sometimes" must have been rare
2343 because the tests only now provoked it.
bbe902f0
PH
2344
2345
495ae4b0
PH
2346Exim version 4.43
2347-----------------
2348
2349 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2350 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2351 Now it returns an integer. A number of calls were still expecting a T/F
2352 return. Fortuitously, in all cases, the tests worked in OK situations,
2353 which is the norm. However, things would have gone wrong on any write
2354 failures on the smtp file descriptor. This function is used when sending
2355 messages over SMTP and also when doing verify callouts.
2356
2357 2. When Exim is called to do synchronous delivery of a locally submitted
2358 message (the -odf or -odi options), it no longer closes stderr before doing
2359 the delivery.
2360
2361 3. Implemented the mua_wrapper option.
2362
2363 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2364
2365 5. Implemented the functions header_remove(), header_testname(),
2366 header_add_at_position(), and receive_remove_recipient(), and exported them
2367 to local_scan().
2368
2369 6. If an ACL "warn" statement specified the addition of headers, Exim already
2370 inserted X-ACL-Warn: at the start if there was no header name. However, it
2371 was not making this test for the second and subsequent header lines if
2372 there were newlines in the string. This meant that an invalid header could
2373 be inserted if Exim was badly configured.
2374
2375 7. Allow an ACL "warn" statement to add header lines at the start or after all
2376 the Received: headers, as well as at the end.
2377
2378 8. Added the rcpt_4xx retry error code.
2379
2380 9. Added postmaster_mailfrom=xxx to callout verification option.
2381
238210. Added mailfrom=xxxx to the callout verification option, for verify=
2383 header_sender only.
2384
238511. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2386 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2387
238812. Inserted some casts to stop certain compilers warning when using pointer
2389 differences as field lengths or precisions in printf-type calls (mostly
2390 affecting debugging statements).
2391
239213. Added optional readline() support for -be (dynamically loaded).
2393
239414. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2395 same clock tick as a message's arrival, so that its received time was the
2396 same as the "first fail" time on the retry record, and that message
2397 remained on the queue past the ultimate address timeout, every queue runner
2398 would try a delivery (because it was past the ultimate address timeout) but
2399 after another failure, the ultimate address timeout, which should have then
2400 bounced the address, did not kick in. This was a "< instead of <=" error;
2401 in most cases the first failure would have been in the next clock tick
2402 after the received time, and all would be well.
2403
240415. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2405 being recognized when the domain list was tested by the match_domain
2406 condition in an expansion string.
2407
240816. Added the ${str2b64: operator.
2409
241017. Exim was always calling setrlimit() to set a large limit for the number of
2411 processes, without checking whether the existing limit was already
2412 adequate. (It did check for the limit on file descriptors.) Furthermore,
2413 errors from getrlimit() and setrlimit() were being ignored. Now they are
2414 logged to the main and panic logs, but Exim does carry on, to try to do its
2415 job under whatever limits there are.
2416
241718. Imported PCRE 5.0.
2418
241919. Trivial typo in log message " temporarily refused connection" (the leading
2420 space).
2421
242220. If the log selector return_path_on_delivery was set and an address was
2423 redirected to /dev/null, the delivery process crashed because it assumed
2424 that a return path would always be set for a "successful" delivery. In this
2425 case, the whole delivery is bypassed as an optimization, and therefore no
2426 return path is set.
2427
242821. Internal re-arrangement: the function for sending a challenge and reading
2429 a response while authentication was assuming a zero-terminated challenge
2430 string. It's now changed to take a pointer and a length, to allow for
2431 binary data in such strings.
2432
243322. Added the cyrus_sasl authenticator (code supplied by MBM).
2434
243523. Exim was not respecting finduser_retries when seeking the login of the
2436 uid under which it was called; it was always trying 10 times. (The default
2437 setting of finduser_retries is zero.) Also, it was sleeping after the final
2438 failure, which is pointless.
2439
244024. Implemented tls_on_connect_ports.
2441
244225. Implemented acl_smtp_predata.
2443
244426. If the domain in control=submission is set empty, Exim assumes that the
2445 authenticated id is a complete email address when it generates From: or
2446 Sender: header lines.
2447
244827. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2449 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2450 chown and chgrp in /bin and hostname in /usr/bin.
2451
245228. Exim was keeping the "process log" file open after each use, just as it
2453 does for the main log. This opens the possibility of it remaining open for
2454 long periods when the USR1 signal hits a daemon. Occasional processlog
2455 errors were reported, that could have been caused by this. Anyway, it seems
2456 much more sensible not to leave this file open at all, so that is what now
2457 happens.
2458
245929. The long-running daemon process does not normally write to the log once it
2460 has entered its main loop, and it closes the log before doing so. This is
2461 so that log files can straightforwardly be renamed and moved. However,
2462 there are a couple of unusual error situations where the daemon does write
2463 log entries, and I had neglected to close the log afterwards.
2464
246530. The text of an SMTP error response that was received during a remote
2466 delivery was being truncated at 512 bytes. This is too short for some of
2467 the long messages that one sometimes sees. I've increased the limit to
2468 1024.
2469
247031. It is now possible to make retry rules that apply only when a message has a
2471 specific sender, in particular, an empty sender.
2472
247332. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2474 it possible to be selective about when SMTP synchronization is enforced.
2475
247633. Added "control = caseful_local_part" and "control = "caselower_local_part".
2477
247832. Implemented hosts_connection_nolog.
2479
248033. Added an ACL for QUIT.
2481
248234. Setting "delay_warning=" to disable warnings was not working; it gave a
2483 syntax error.
2484
248535. Added mailbox_size and mailbox_filecount to appendfile.
2486
248736. Added control = no_multiline_responses to ACLs.
2488
248937. There was a bug in the logic of the code that waits for the clock to tick
2490 in the case where the clock went backwards by a substantial amount such
2491 that the microsecond fraction of "now" was more than the microsecond
2492 fraction of "then" (but the whole seconds number was less).
2493
249438. Added support for the libradius Radius client library this is found on
2495 FreeBSD (previously only the radiusclient library was supported).
2496
2497
2498Exim version 4.42
2499-----------------
2500
2501 1. When certain lookups returned multiple values in the form name=value, the
2502 quoting of the values was not always being done properly. Specifically:
2503 (a) If the value started with a double quote, but contained no whitespace,
2504 it was not quoted.
2505 (b) If the value contained whitespace other than a space character (i.e.
2506 tabs or newlines or carriage returns) it was not quoted.
2507 This fix has been applied to the mysql and pgsql lookups by writing a
2508 separate quoting function and calling it from the lookup code. The fix
2509 should probably also be applied to nisplus, ibase and oracle lookups, but
2510 since I cannot test any of those, I have not disturbed their existing code.
2511
2512 2. A hit in the callout cache for a specific address caused a log line with no
2513 reason for rejecting RCPT. Now it says "Previous (cached) callout
2514 verification failure".
2515
2516 3. There was an off-by-one bug in the queryprogram router. An over-long
2517 return line was truncated at 256 instead of 255 characters, thereby
2518 overflowing its buffer with the terminating zero. As well as fixing this, I
2519 have increased the buffer size to 1024 (and made a note to document this).
2520
2521 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2522 when Exim is waiting for an SMTP response from a remote server, Exim
2523 restarts its select() call on the socket, thereby resetting its timeout.
2524 This is not a problem when such interrupts are rare. Somebody set up a cron
2525 job to run exiwhat every 2 minutes, which is less than the normal select()
2526 timeout (5 or 10 minutes). This meant that the select() timeout never
2527 kicked in because it was always reset. I have fixed this by comparing the
2528 time when an interrupt arrives with the time at the start of the first call
2529 to select(). If more time than the timeout has elapsed, the interrupt is
2530 treated as a timeout.
2531
2532 5. Some internal re-factoring in preparation for the addition of Sieve
2533 extensions (by MH). In particular, the "personal" test is moved to a
2534 separate function, and given an option for scanning Cc: and Bcc: (which is
2535 not set for Exim filters).
2536
2537 6. When Exim created an email address using the login of the caller as the
2538 local part (e.g. when creating a From: or Sender: header line), it was not
2539 quoting the local part when it contained special characters such as @.
2540
2541 7. Installed new OpenBSD configuration files.
2542
2543 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2544 try to make them clearer.
2545
2546 9. Callout options, other than the timeout value, were being ignored when
2547 verifying sender addresses in header lines. For example, when using
2548
2549 verify = header_sender/callout=no_cache
2550
2551 the cache was (incorrectly) being used.
2552
255310. Added a missing instance of ${EXE} to the exim_install script; this affects
2554 only the Cygwin environment.
2555
255611. When return_path_on_delivery was set as a log selector, if different remote
2557 addresses in the same message used different return paths and parallel
2558 remote delivery occurred, the wrong values would sometimes be logged.
2559 (Whenever a remote delivery process finished, the return path value from
2560 the most recently started remote delivery process was logged.)
2561
256212. RFC 3848 specifies standard names for the "with" phrase in Received: header
2563 lines when AUTH and/or TLS are in use. This is the "received protocol"
2564 field. Exim used to use "asmtp" for authenticated SMTP, without any
2565 indication (in the protocol name) for TLS use. Now it follows the RFC and
2566 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
2567 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
2568 names appear in log lines as well as in Received: header lines.
2569
257013. Installed MH's patches for Sieve to add the "copy" and "vacation"
2571 extensions, and comparison tests, and to fix some bugs.
2572
257314. Changes to the "personal" filter test:
2574
2575 (1) The test was buggy in that it was just doing the equivalent of
2576 "contains" tests on header lines. For example, if a user's address was
2577 anne@some.where, the "personal" test would incorrectly be true for
2578
2579 To: susanne@some.where
2580
2581 This test is now done by extracting each address from the header in turn,
2582 and checking the entire address. Other tests that are part of "personal"
2583 are now done using regular expressions (for example, to check local parts
2584 of addresses in From: header lines).
2585
2586 (2) The list of non-personal local parts in From: addresses has been
2587 extended to include "listserv", "majordomo", "*-request", and "owner-*",
2588 taken from the Sieve specification recommendations.
2589
2590 (3) If the message contains any header line starting with "List-" it is
2591 treated as non-personal.
2592
2593 (4) The test for "circular" in the Subject: header line has been removed
2594 because it now seems ill-conceived.
2595
259615. Minor typos in src/EDITME comments corrected.
2597
259816. Installed latest exipick from John Jetmore.
2599
260017. If headers_add on a router specified a text string that was too long for
2601 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
2602 of string_sprintf() is now avoided.
2603
260418. $message_body_size was not set (it was always zero) when running the DATA
2605 ACL and the local_scan() function.
2606
260719. For the "mail" command in an Exim filter, no default was being set for
2608 the once_repeat time, causing a random time value to be used if "once" was
2609 specified. (If the value happened to be <= 0, no repeat happened.) The
2610 default is now 0s, meaning "never repeat". The "vacation" command was OK
2611 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
2612 (I found it when inspecting the code).
2613
261420. There is now an overall timeout for performing a callout verification. It
2615 defaults to 4 times the callout timeout, which applies to individual SMTP
2616 commands during the callout. The overall timeout applies when there is more
2617 than one host that can be tried. The timeout is checked before trying the
2618 next host. This prevents very long delays if there are a large number of
2619 hosts and all are timing out (e.g. when the network connections are timing
2620 out). The value of the overall timeout can be changed by specifying an
2621 additional sub-option for "callout", called "maxwait". For example:
2622
2623 verify = sender/callout=5s,maxwait=20s
2624
262521. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
2626 to the end before writing, but this should make it even safer).
2627
262822. Exim was forgetting that it had advertised PIPELINING for the second and
2629 subsequent messages on an SMTP connection. It was also not resetting its
2630 memory on STARTTLS and an internal HELO.
2631
263223. When Exim logs an SMTP synchronization error within a session, it now
2633 records whether PIPELINING has been advertised or not.
2634
263524. Added 3 instances of "(long int)" casts to time_t variables that were being
2636 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
2637 rather than long int.
2638
263925. Installed the latest Cygwin configuration files from the Cygwin maintainer.
2640
264126. Added the never_mail option to autoreply.
2642
2643
2644Exim version 4.41
2645-----------------
2646
2647 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
2648 crash if the getsockname() call failed; this can happen if a connection is
2649 closed very soon after it is established. The problem was simply in the
2650 order in which certain operations were done, causing Exim to try to write
2651 to the SMTP stream before it had set up the file descriptor. The bug has
2652 been fixed by making things happen in the correct order.
2653
2654
2655Exim version 4.40
2656-----------------
2657
2658 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
2659 before the connection was closed, thus losing the rejection response.
2660
2661 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
2662 some early Solaris releases, but causes trouble in current releases where
2663 socklen_t is defined.
2664
2665 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
2666 always exist.
2667
2668 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
2669 configured.
2670
2671 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
2672 that releasing the top of it at the end releases what was used for sub-
2673 expansions (unless the block got too big). However, discard this block if
2674 the first thing is a variable or header, so that we can use its block when
2675 it is dynamic (useful for very large $message_headers, for example).
2676
2677 6. Lookups now cache *every* query, not just the most recent. A new, separate
2678 store pool is used for this. It can be recovered when all lookup caches are
2679 flushed. Lookups now release memory at the end of their result strings.
2680 This has involved some general refactoring of the lookup sources.
2681
2682 7. Some code has been added to the store_xxx() functions to reduce the amount
2683 of flapping under certain conditions.
2684
2685 8. log_incoming_interface used to affect only the <= reception log lines. Now
2686 it causes the local interface and port to be added to several more SMTP log
2687 lines, for example "SMTP connection from", and rejection lines.
2688
2689 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
2690
269110. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
2692
269311. If $host_data was set by virtue of a hosts lookup in an ACL, its value
2694 could be overwritten at the end of the current message (or the start of a
2695 new message if it was set in a HELO ACL). The value is now preserved for
2696 the duration of the SMTP connection.
2697
269812. If a transport had a headers_rewrite setting, and a matching header line
2699 contained an unqualified address, that address was qualified, even if it
2700 did not match any rewriting rules. The underlying bug was that the values
2701 of the flags that permit the existence of unqualified sender and recipient
2702 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
2703 non-local messages, and by -bnq for local messages) were not being
2704 preserved with the message after it was received.
2705
270613. When Exim was logging an SMTP synchronization error, it could sometimes log
2707 "next input=" as part of the text comprising the host identity instead of
2708 the correct text. The code was using the same buffer for two different
2709 strings. However, depending on which order the printing function evaluated
2710 its arguments, the bug did not always show up. Under Linux, for example, my
2711 test suite worked just fine.
2712
271314. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
2714 doesn't work with some older versions of Perl. It has been changed to "my",
2715 which in any case is probably the better facility to use.
2716
271715. A really picky compiler found some instances of statements for creating
2718 error messages that either had too many or two few arguments for the format
2719 string.
2720
272116. The size of the buffer for calls to the DNS resolver has been increased
2722 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
2723 for addresses that have a lot of PTR records. This alleviates a problem; it
2724 does not fully solve it.
2725
272617. A dnsdb lookup for PTR records that receives more data than will fit in the
2727 buffer now truncates the list and logs the incident, which is the same
2728 action as happens when Exim is looking up a host name and its aliases.
2729 Previously in this situation something unpredictable would happen;
2730 sometimes it was "internal error: store_reset failed".
2731
273218. If a server dropped the connection unexpectedly when an Exim client was
2733 using GnuTLS and trying to read a response, the client delivery process
2734 crashed while trying to generate an error log message.
2735
273619. If a "warn" verb in an ACL added multiple headers to a message in a single
2737 string, for example:
2738
2739 warn message = H1: something\nH2: something
2740
2741 the text was added as a single header line from Exim's point of view
2742 though it ended up OK in the delivered message. However, searching for the
2743 second and subsequent header lines using $h_h2: did not work. This has been
2744 fixed. Similarly, if a system filter added multiple headers in this way,
2745 the routers could not see them.
2746
274720. Expanded the error message when iplsearch is called with an invalid key to
2748 suggest using net-iplsearch in a host list.
2749
275021. When running tests using -bh, any delays imposed by "delay" modifiers in
2751 ACLs are no longer actually imposed (and a message to that effect is
2752 output).
2753
275422. If a "gecos" field in a passwd entry contained escaped characters, in
2755 particular, if it contained a \" sequence, Exim got it wrong when building
2756 a From: or a Sender: header from that name. A second bug also caused
2757 incorrect handling when an unquoted " was present following a character
2758 that needed quoting.
2759
276023. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
2761 was not being matched caselessly.
2762
276324. Arranged for all hyphens in the exim.8 source to be escaped with
2764 backslashes.
2765
276625. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
2767 properly. Recipient callout cache records were still being keyed to include
2768 the sender, even when use_sender was set false. This led to far more
2769 callouts that were necessary. The sender is no longer included in the key
2770 when use_sender is false.
2771
277226. Added "control = submission" modifier to ACLs.
2773
277427. Added the ${base62d: operator to decode base 62 numbers.
2775
277628. dnsdb lookups can now access SRV records.
2777
277829. CONFIGURE_OWNER can be set at build time to define an alternative owner for
2779 the configuration file.
2780
278130. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
2782 (-v) mode. This makes the output for a verbose queue run more intelligible.
2783
278431. Added a use_postmaster feature to recipient callouts.
2785
278632. Added the $body_zerocount variable, containing the number of binary zero
2787 bytes in the message body.
2788
278933. The time of last modification of the "new" subdirectory is now used as the
2790 "mailbox time last read" when there is a quota error for a maildir
2791 delivery.
2792
279334. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
2794
279535. Added +ignore_unknown as a special item in host lists.
2796
279736. Code for decoding IPv6 addresses in host lists is now included, even if
2798 IPv6 support is not being compiled. This fixes a bug in which an IPv6
2799 address was recognized as an IP address, but was then not correctly decoded
2800 into binary, causing unexpected and incorrect effects when compared with
2801 another IP address.
2802
2803
2804Exim version 4.34
2805-----------------
2806
2807 1. Very minor rewording of debugging text in manualroute to say "list of
2808 hosts" instead of "hostlist".
2809
2810 2. If verify=header_syntax was set, and a header line with an unqualified
2811 address (no domain) and a large number of spaces between the end of the
2812 name and the colon was received, the reception process suffered a buffer
2813 overflow, and (when I tested it) crashed. This was caused by some obsolete
2814 code that should have been removed. The fix is to remove it!
2815
2816 3. When running in the test harness, delay a bit after writing a bounce
2817 message to get a bit more predictability in the log output.
2818
2819 4. Added a call to search_tidyup() just before forking a reception process. In
2820 theory, someone could use a lookup in the expansion of smtp_accept_max_
2821 per_host which, without the tidyup, could leave open a database connection.
2822
2823 5. Added the variables $recipient_data and $sender_data which get set from a
2824 lookup success in an ACL "recipients" or "senders" condition, or a router
2825 "senders" option, similar to $domain_data and $local_part_data.
2826
2827 6. Moved the writing of debug_print from before to after the "senders" test
2828 for routers.
2829
2830 7. Change 4.31/66 (moving the time when the Received: is generated) caused
2831 problems for message scanning, either using a data ACL, or using
2832 local_scan() because the Received: header was not generated till after they
2833 were called (in order to set the time as the time of reception completion).
2834 I have revised the way this works. The header is now generated after the
2835 body is received, but before the ACL or local_scan() are called. After they
2836 are run, the timestamp in the header is updated.
2837
2838
2839Exim version 4.33
2840-----------------
2841
2842 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
2843 before starting a queue runner without re-exec. This happened only when
2844 deliver_drop_privilege was set or when the Exim user was set to root. The
2845 effect of the bug was that timeouts during subsequent deliveries caused
2846 crashes instead of being properly handled. The handler is now left at its
2847 default (and expected) setting.
2848
2849 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
2850 message, again when deliver_drop_privilege is set or Exim is run as root.
2851 The bug described in (1) was not present in this case, but the tidying up
2852 of the other signals was missing. I have made the two cases consistent.
2853
2854 3. The ignore_target_hosts setting on a manualroute router was being ignored
2855 for hosts that were looked up using the /MX notation.
2856
2857 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
2858 in domain lists.
2859
2860 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
2861 operated on the sender address. After changing the $sender_address to <>
2862 for the sender address verify, Exim was re-instated it as the original
2863 (before rewriting) address, but remembering that it had rewritten it, so it
2864 wasn't rewriting it again. This bug also had the effect of breaking the
2865 sender address verification caching when the sender address was rewritten.
2866
2867 6. The ignore_target_hosts option was being ignored by the ipliteral router.
2868 This has been changed so that if the ip literal address matches
2869 ignore_target_hosts, the router declines.
2870
2871 7. Added expansion conditions match_domain, match_address, and match_local_
2872 part (NOT match_host).
2873
2874 8. The placeholder for the Received: header didn't have a length field set.
2875
2876 9. Added code to Exim itself and to exim_lock to test for a specific race
2877 condition that could lead to file corruption when using MBX delivery. The
2878 issue is with the lockfile that is created in /tmp. If this file is removed
2879 after a process has opened it but before that process has acquired a lock,
2880 there is the potential for a second process to recreate the file and also
2881 acquire a lock. This could lead to two Exim processes writing to the file
2882 at the same time. The added code performs the same test as UW imapd; it
2883 checks after acquiring the lock that its file descriptor still refers to
2884 the same named file.
2885
288610. The buffer for building added header lines was of fixed size, 8192 bytes.
2887 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
2888 when Exim is built.
2889
289011. Added the smtp_active_hostname option. If used, this will typically be made
2891 to depend on the incoming interface address. Because $interface_address is
2892 not set up until the daemon has forked a reception process, error responses
2893 that can happen earlier (such as "too many connections") no longer contain
2894 a host name.
2895
289612. If an expansion in a condition on a "warn" statement fails because a lookup
2897 defers, the "warn" statement is abandoned, and the next ACL statement is
2898 processed. Previously this caused the whole ACL to be aborted.
2899
290013. Added the iplsearch lookup type.
2901
290214. Added ident_timeout as a log selector.
2903
290415. Added tls_certificate_verified as a log selector.
2905
290616. Added a global option tls_require_ciphers (compare the smtp transport
2907 option of the same name). This controls incoming TLS connections.
2908
290917. I finally figured out how to make tls_require_ciphers do a similar thing
2910 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
2911 before starting the TLS session.
2912
291318. Tabs are now shown as \t in -bP output.
2914
291519. If the log selector return_path_on_delivery was set, Exim crashed when
2916 bouncing a message because it had too many Received: header lines.
2917
291820. If two routers both had headers_remove settings, and the first one included
2919 a superfluous trailing colon, the final name in the first list and the
2920 first name in the second list were incorrectly joined into one item (with a
2921 colon in the middle).
2922
2923
2924Exim version 4.32
2925-----------------
2926
2927 1. Added -C and -D options to the exinext utility, mainly to make it easier
2928 to include in the automated testing, but these could be helpful when
2929 multiple configurations are in use.
2930
2931 2. The exinext utility was not formatting the output nicely when there was
2932 an alternate port involved in the retry record key, nor when there was a
2933 message id as well (for retries that were specific to a specific message
2934 and a specific host). It was also confused by IPv6 addresses, because of
2935 the additional colons they contain. I have fixed the IPv4 problem, and
2936 patched it up to do a reasonable job for IPv6.
2937
2938 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
2939 delivery, the log line now contains "pipelined" if PIPELINING was used.
2940
2941 4. An SMTP transport process used to panic and die if the bind() call to set
2942 an explicit outgoing interface failed. This has been changed; it is now
2943 treated in the same way as a connect() failure.
2944
2945 5. A reference to $sender_host_name in the part of a conditional expansion
2946 that was being skipped was still causing a DNS lookup. This no longer
2947 occurs.
2948
2949 6. The def: expansion condition was not recognizing references to header lines
2950 that used bh_ and bheader_.
2951
2952 7. Added the _cache feature to named lists.
2953
2954 8. The code for checking quota_filecount in the appendfile transport was
2955 allowing one more file than it should have been.
2956
2957 9. For compatibility with Sendmail, the command line option
2958
2959 -prval:sval
2960
2961 is equivalent to
2962
2963 -oMr rval -oMs sval
2964
2965 and sets the incoming protocol and host name (for trusted callers). The
2966 host name and its colon can be omitted when only the protocol is to be set.
2967 Note the Exim already has two private options, -pd and -ps, that refer to
2968 embedded Perl. It is therefore impossible to set a protocol value of "d" or
2969 "s", but I don't think that's a major issue.
2970
297110. A number of refactoring changes to the code, none of which should affect
2972 Exim's behaviour:
2973
2974 (a) The number of logging options was getting close to filling up the
2975 32-bit word that was used as a bit map. I have split them into two classes:
2976 those that are passed in the argument to log_write(), and those that are
2977 only ever tested independently outside of that function. These are now in
2978 separate 32-bit words, so there is plenty of room for expansion again.
2979 There is no change in the user interface or the logging behaviour.
2980
2981 (b) When building, for example, log lines, the code previously used a
2982 macro that called string_cat() twice, in order to add two strings. This is
2983 not really sufficiently general. Furthermore, there was one instance where
2984 it was actually wrong because one of the argument was used twice, and in
2985 one call a function was used. (As it happened, calling the function twice
2986 did not affect the overall behaviour.) The macro has been replaced by a
2987 function that can join an arbitrary number of extra strings onto a growing
2988 string.
2989
2990 (c) The code for expansion conditions now uses a table and a binary chop
2991 instead of a serial search (which was left over from when there were very
2992 few conditions). Also, it now recognizes conditions like "pam" even when
2993 the relevant support is not compiled in: a suitably worded error message is
2994 given if an attempt is made to use such a condition.
2995
299611. Added ${time_interval:xxxxx}.
2997
299812. A bug was causing one of the ddress fields not to be passed back correctly
2999 from remote delivery subprocesses. The field in question was not being
3000 subsequently used, so this caused to problems in practice.
3001
300213. Added new log selectors queue_time and deliver_time.
3003
300414. Might have fixed a bug in maildirsizefile handling that threw up
3005 "unexpected character" debug warnings, and recalculated the data
3006 unnecessarily. In any case, I expanded the warning message to give more
3007 information.
3008
300915. Added the message "Restricted characters in address" to the statements in
3010 the default ACL that block characters like @ and % in local parts.
3011
301216. Change 71 for release 4.31 proved to be much less benign that I imagined.
3013 Three changes have been made:
3014
3015 (a) There was a serious bug; a negative response to MAIL caused the whole
3016 recipient domain to be cached as invalid, thereby blocking all messages
3017 to all local parts at the same domain, from all senders. This bug has
3018 been fixed. The domain is no longer cached after a negative response to
3019 MAIL if the sender used is not empty.
3020
3021 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3022 been restored.
3023
3024 (c) A new callout option, "use_sender" has been added for people who want
3025 the modified behaviour.
3026
3027
3028Exim version 4.31
3029-----------------
3030
3031 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3032 Larry Rosenman.
3033
3034 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3035 indeed breaks things for older releases.
3036
3037 3. Added additional logging to the case where there is a problem reading data
3038 from a filter that is running in a subprocess using a pipe, in order to
3039 try to track down a specific problem.
3040
3041 4. Testing facility fudge: when running in the test harness and attempting
3042 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3043 getting "No route to host". Convert this to a timeout.
3044
3045 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3046 warning.
3047
3048 6. Some OS don't have socklen_t but use size_t instead. This affects the
3049 fifth argument of getsockopt() amongst other things. This is now
3050 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3051 can be set for individual OS. I have set it for SunOS5, OSF1, and
3052 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3053 some earlier ones do not.
3054
3055 7. Change 4.30/15 was not doing the test caselessly.
3056
3057 8. The standard form for an IPv6 address literal was being rejected by address
3058 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3059 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3060 this, as well as the form without the "IPv6" on the front (but only when
3061 address literals are enabled, of course).
3062
3063 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3064
306510. Exim crashed if a message with an empty sender address specified by -f
3066 encountered a router with an errors_to setting. This could be provoked only
3067 by a command such as
3068
3069 exim -f "" ...
3070
3071 where an empty string was supplied; "<>" did not hit this bug.
3072
307311. Installed PCRE release 4.5.
3074
307512. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3076 remained set. It is now erased.
3077
307813. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3079 times from message ids (which are base 36 rather than the normal 62).
3080
308114. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3082 were being counted as actual protocol errors, and logged if the log
3083 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3084 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3085 and DATA following a set of rejected RCPTs do not count as protocol errors.
3086 In other words, Exim assumes they were pipelined, though this may not
3087 actually be the case. Of course, in all cases the client gets an
3088 appropriate error code.
3089
309015. If a lookup fails in an ACL condition, a message about the failure may
3091 be available; it is used if testing the ACL cannot continue, because most
3092 such messages specify what the cause of the deferral is. However, some
3093 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3094 that caused an old message to be retained and used if a later statement
3095 caused a defer, replacing the real cause of the deferral.
3096
309716. If an IP address had so many PTR records that the DNS lookup buffer
3098 was not large enough to hold them, Exim could crash while trying to process
3099 the truncated data. It now detects and logs this case.
3100
310117. Further to 4.21/58, another change has been made: if (and only if) the
3102 first line of a message (the first header line) ends with CRLF, a bare LF
3103 in a subsequent header line has a space inserted after it, so as not to
3104 terminate the header.
3105
310618. Refactoring: tidied an ugly bit of code in appendfile that copied data
3107 unnecessarily, used atoi() instead of strtol(), and didn't check the
3108 termination when getting file sizes from file names by regex.
3109
311019. Completely re-implemented the support for maildirsize files, in the light
3111 of a number of problems with the previous contributed implementation
3112 (4.30/29). In particular:
3113
3114 . If the quota is zero, the maildirsize file is maintained, but no quota is
3115 imposed.
3116
3117 . If the maildir directory does not exist, it is created before any attempt
3118 to write a maildirsize file.
3119
3120 . The quota value in the file is just a cache; if the quota is changed in
3121 the transport, the new value overrides.
3122
3123 . A regular expression is available for excluding directories from the
3124 count.
3125
312620. The autoreply transport checks the characters in options that define the
3127 message's headers; it allows continued headers, but it was checking with
3128 isspace() after an embedded newline instead of explicitly looking for a
3129 space or a tab.
3130
313121. If all the "regular" hosts to which an address was routed had passed their
3132 expiry times, and had not reached their retry times, the address was
3133 bounced, even if fallback hosts were defined. Now Exim should go on to try
3134 the fallback hosts.
3135
313622. Increased buffer sizes in the callout code from 1024 to 4096 to match the
3137 equivalent code in the SMTP transport. Some hosts send humungous responses
3138 to HELO/EHLO, more than 1024 it seems.
3139
314023. Refactoring: code in filter.c used (void *) for "any old type" but this
3141 gives compiler warnings in some environments. I've now done it "properly",
3142 using a union.
3143
314424. The replacement for inet_ntoa() that is used with gcc on IRIX systems
3145 (because of problems with the built-in one) was declared to return uschar *
3146 instead of char *, causing compiler failure.
3147
314825. Fixed a file descriptor leak when processing alias/forward files.
3149
315026. Fixed a minor format string issue in dbfn.c.
3151
315227. Typo in exim.c: ("dmbnz" for "dbmnz").
3153
315428. If a filter file refered to $h_xxx or $message_headers, and the headers
3155 contained RFC 2047 "words", Exim's memory could, under certain conditions,
3156 become corrupted.
3157
315829. When a sender address is verified, it is cached, to save repeating the test
3159 when there is more than one recipient in a message. However, when the
3160 verification involves a callout, it is possible for different callout
3161 options to be set for different recipients. It is too complicated to keep
3162 track of this in the cache, so now Exim always runs a verification when a
3163 callout is required, relying on the callout cache for the optimization.
3164 The overhead is duplication of the address routing, but this should not be
3165 too great.
3166
316730. Fixed a bug in callout caching. If a RCPT command caused the sender address
3168 to be verified with callout=postmaster, and the main callout worked but the
3169 postmaster check failed, the verification correctly failed. However, if a
3170 subsequent RCPT command asked for sender verification *without* the
3171 postmaster check, incorrect caching caused this verification also to fail,
3172 incorrectly.
3173
317431. Exim caches DNS lookup failures so as to avoid multiple timeouts; however,
3175 it was not caching the DNS options (qualify_single, search_parents) that
3176 were used when the lookup failed. A subsequent lookup with different
3177 options therefore always gave the same answer, though there were cases
3178 where it should not have. (Example: a "domains = !$mx_any" option on a
3179 dnslookup router: the "domains" option is always processed without any
3180 widening, but the router might have qualify_single set.) Now Exim uses the
3181 cached value only when the same options are set.
3182
318332. Added John Jetmore's "exipick" utility to the distribution.
3184
318533. GnuTLS: When an attempt to start a TLS session fails for any reason other
3186 than a timeout (e.g. a certificate is required, and is not provided), an
3187 Exim server now closes the connection immediately. Previously it waited for
3188 the client to close - but if the client is SSL, it seems that they each
3189 wait for each other, leading to a delay before one of them times out.
3190
319134: GnuTLS: Updated the code to use the new GnuTLS 1.0.0 API. I have not
3192 maintained 0.8.x compatibility because I don't think many are using it, and
3193 it is clearly obsolete.
3194
319535. Added TLS support for CRLs: a tls_crl global option and one for the smtp
3196 transport.
3197
319836. OpenSSL: $tls_certificate_verified was being set to 1 even if the
3199 client certificate was expired. A simple patch fixes this, though I don't
3200 understand the full logic of why the verify callback is called multiple
3201 times.
3202
320337. OpenSSL: a patch from Robert Roselius: "Enable client-bug workaround.
3204 Versions of OpenSSL as of 0.9.6d include a 'CBC countermeasure' feature,
3205 which causes problems with some clients (such as the Certicom SSL Plus
3206 library used by Eudora). This option, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS,
3207 disables the coutermeasure allowing Eudora to connect."
3208
320938. Exim was not checking that a write() to a log file succeeded. This could
3210 lead to Bad Things if a log got too big, in particular if it hit a file
3211 size limit. Exim now panics and dies if it cannot write to a log file, just
3212 as it does if it cannot open a log file.
3213
321439. Modified OS/Makefile-Linux so that it now contains
3215
3216 CFLAGS=-O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
3217
3218 The two -D definitions ensure that Exim is compiled with large file
3219 support, which makes it possible to handle log files that are bigger than
3220 2^31.
3221
322240. Fixed a subtle caching bug: if (in an ACL or a set of routers, for
3223 instance) a domain was checked against a named list that involved a lookup,
3224 causing $domain_data to be set, then another domain was checked against the
3225 same list, then the first domain was re-checked, the value of $domain_data
3226 after the final check could be wrong. In particular, if the second check
3227 failed, it could be set empty. This bug probably also applied to
3228 $localpart_data.
3229
323041. The strip_trailing_dot option was not being applied to the address given
3231 with the -f command-line option.
3232
323342. The code for reading a message's header from the spool was incrementing
3234 $received_count, but never initializing it. This meant that the value was
3235 incorrect (doubled) while delivering a message in the same process in which
3236 it was received. In the most common configuration of Exim, this never
3237 happens - a fresh exec is done - but it can happen when
3238 deliver_drop_privilege is set.
3239
324043. When Exim logs an SMTP synchronization error - client data sent too soon -
3241 it now includes up to 150 characters of the unexpected data in the log
3242 line.
3243
324444. The exim_dbmbuild utility uses fixed size buffers for reading input lines
3245 and building data strings. The size of both of these buffers was 10 000
3246 bytes - far larger than anybody would *ever* want, thought I. Needless to
3247 say, somebody hit the limit. I have increased the maximum line length to
3248 20 000 and the maximum data length of concatenated lines to 100 000. I have
3249 also fixed two bugs, because there was no checking on these buffers. Tsk,
3250 tsk. Now exim_dbmbuild gives a message and exits with an error code if a
3251 buffer is too small.
3252
325345. The exim_dbmbuild utility did not support quoted keys, as Exim does in
3254 lsearch lookups. Now it does.
3255
325646. When parsing a route_list item in a manualroute router, a fixed-length
3257 buffer was used for the list of hosts. I made this 1024 bytes long,
3258 thinking that nobody would ever have a list of hosts that long. Wrong.
3259 Somebody had a whole pile of complicated expansion conditions, and the
3260 string was silently truncated, leading to an expansion error. It turns out
3261 that it is easier to change to an unlimited length (owing to other changes
3262 that have happened since this code was originally written) than to build
3263 structure for giving a limitation error. The length of the item that
3264 expands into the list of hosts is now unlimited.
3265
326647. The lsearch lookup could not handle data where the length of text line was
3267 more than 4095 characters. Such lines were truncated, leading to shortened
3268 data being returned. It should now handle lines of any length.
3269
327048. Minor wording revision: "cannot test xxx in yyy ACL" becomes "cannot test
3271 xxx condition in yyy ACL" (e.g. "cannot test domains condition in DATA
3272 ACL").
3273
327449. Cosmetic tidy to scripts like exicyclog that are generated by globally
3275 replacing strings such as BIN_DIRECTORY in a source file: the replacement
3276 no longer happens in comment lines. A list of replacements is now placed
3277 at the head of all of the source files, except those whose only change is
3278 to replace PERL_COMMAND in the very first #! line.
3279
328050. Replaced the slow insertion sort in queue.c, for sorting the list of
3281 messages on the queue, with a bottom-up merge sort, using code contributed
3282 by Michael Haardt. This should make operations like -bp somewhat faster on
3283 large queues. It won't affect queue runners, except when queue_run_in_order
3284 is set.
3285
328651. Installed eximstats 1.31 in the distribution.
3287
328852. Added support for SRV lookups to the dnslookup router.
3289
329053. If an ACL referred to $message_body or $message_body_end, the value was not
3291 reset for any messages that followed in the same SMTP session.
3292
329354. The store-handling optimization for building very long strings was not
3294 differentiating between the different store pools. I don't think this
3295 actually made any difference in practice, but I've tidied it.
3296
329755. While running the routers to verify a sender address, $sender_address
3298 was still set to the sender address. This is wrong, because when routing to
3299 send a bounce to the sender, it would be empty. Therefore, I have changed
3300 it so that, while verifying a sender address, $sender_address is set to <>.
3301 (There is no change to what happens when verifying a recipient address.)
3302
330356. After finding MX (or SRV) records, Exim was doing a DNS lookup for the
3304 target A or AAAA records (if not already returned) without resetting the
3305 qualify_single or search_parents options of the DNS resolver. These are
3306 inappropriate in this case because the targets of MX and SRV records must
3307 be FQDNs. A broken DNS record could cause trouble if it happened to have a
3308 target that, when qualified, matched something in the local domain. These
3309 two options are now turned off when doing these lookups.
3310
331157. It seems that at least some releases of Reiserfs (which does not have the
3312 concept of a fixed number of inodes) returns zero and not -1 for the
3313 number of available inodes. This interacted badly with check_spool_inodes,
3314 which assumed that -1 was the "no such thing" setting. What I have done is
3315 to check that the total number of inodes is greater than zero before doing
3316 the test of how many are available.
3317
331858. When a "warn" ACL statement has a log_message modifier, the message is
3319 remembered, and not repeated. This is to avoid a lot of repetition when a
3320 message has many recipients that cause the same warning to be written.
3321 Howewer, Exim was preserving the list of already written lines for an
3322 entire SMTP session, which doesn't seem right. The memory is now reset if a
3323 new message is started.
3324
332559. The "rewrite" debugging flag was not showing the result of rewriting in the
3326 debugging output unless log_rewrite was also set.
3327
332860. Avoid a compiler warning on 64-bit systems in dsearch.c by avoiding the use
3329 of (int)(handle) when we know that handle contains (void *)(-1).
3330
333161. The Exim daemon panic-logs an error return when it closes the incoming
3332 connection. However "connection reset by peer" seems to be common, and
3333 isn't really an error worthy of noting specially, so that particular error
3334 is no long logged.
3335
333662. When Exim is trying to find all the local interfaces, it used to panic and
3337 die if the ioctl to get the interface flags failed. However, it seems that
3338 on at least one OS (Solaris 9) it is possible to have an interface that is
3339 included in the list of interfaces, but for which you get a failure error
3340 for this call. This happens when the interface is not "plumbed" into a
3341 protocol (i.e. neither IPv4 nor IPv6). I've changed the code so that a
3342 failure of the "get flags" call assumes that the interface is down.
3343
334463. Added a ${eval10: operator, which assumes all numbers are decimal. This
3345 makes life easier for people who are doing arithmetic on fields extracted
3346 from dates, where you often get leading zeros that should not be
3347 interpreted as octal.
3348
334964. Added qualify_domain to the redirect router, to override the global
3350 setting.
3351
335265. If a pathologically long header line contained very many addresses (the
3353 report of this problem mentioned 10 000) and each of them was rewritten,
3354 Exim could use up a very large amount of memory. (It kept on making new
3355 copies of the header line as it rewrote, and never released the old ones.)
3356 At the expense of a bit more processing, the header rewriting function has
3357 been changed so that it no longer eats memory in this way.
3358
335966. The generation of the Received: header has been moved from the time that a
3360 message starts to be received, to the time that it finishes. The timestamp
3361 in the Received: header should now be very close to that of the <= log
3362 line. There are two side-effects of this change:
3363
3364 (a) If a message is rejected by a DATA or non-SMTP ACL or local_scan(), the
3365 logged header lines no longer include the local Received: line, because
3366 it has not yet been created. The same applies to a copy of the message
3367 that is returned to a non-SMTP sender when a message is rejected.
3368
3369 (b) When a filter file is tested using -bf, no additional Received: header
3370 is added to the test message. After some thought, I decided that this
3371 is a bug fix.
3372
3373 This change does not affect the value of $received_for. It is still set
3374 after address rewriting, but before local_scan() is called.
3375
337667. Installed the latest Cygwin-specific files from the Cygwin maintainer.
3377
337868. GnuTLS: If an empty file is specified for tls_verify_certificates, GnuTLS
3379 gave an unhelpful panic error message, and a defer error. I have managed to
3380 change this behaviour so that it now rejects any supplied certificate,
3381 which seems right, as the list of acceptable certificates is empty.
3382
338369. OpenSSL: If an empty file is specified for tls_verify_certificates, OpenSSL
3384 gave an unhelpful defer error. I have not managed to make this reject any
3385 supplied certificates, but the error message it gives is "no certificate
3386 supplied", which is not helpful.
3387
338870. exigrep's output now also includes lines that are not associated with any
3389 message, but which match the given pattern. Implemented by a patch from
3390 Martin Sluka, which also tidied up the Perl a bit.
3391
339271. Recipient callout verification, like sender verification, was using <> in
3393 the MAIL FROM command. This isn't really the right thing, since the actual
3394 sender may affect whether the remote host accepts the recipient or not. I
3395 have changed it to use the actual sender in the callout; this means that
3396 the cache record is now keyed on a recipient/sender pair, not just the
3397 recipient address. There doesn't seem to be a real danger of callout loops,
3398 since a callout by the remote host to check the sender would use <>.
3399 [SEE ABOVE: changed after hitting problems.]
3400
340172. Exim treats illegal SMTP error codes that do not begin with 4 or 5 as
3402 temporary errors. However, in the case of such a code being given after
3403 the end of a data transmission (i.e. after ".") Exim was failing to write
3404 a retry record for the message. (Yes, there was some broken host that was
3405 actually sending 8xx at this point.)
3406
340773. An unknown lookup type in a host list could cause Exim to panic-die when
3408 the list was checked. (An example that provoked this was putting <; in the
3409 middle of a list instead of at the start.) If this happened during a DATA
3410 ACL check, a -D file could be left lying around. This kind of configuration
3411 error no longer causes Exim to die; instead it causes a defer errror. The
3412 incident is still logged to the main and panic logs.
3413
341474. Buglet left over from Exim 3 conversion. The message "too many messages
3415 in one connection" was written to the rejectlog but not the mainlog, except
3416 when address rewriting (yes!) was being logged.
3417
341875. Added write_rejectlog option.
3419
342076. When a system filter was run not as root (that is, when system_filter_user
3421 was set), the values of the $n variables were not being returned to the
3422 main process; thus, they were not subsequently available in the $sn
3423 variables.
3424
342577. Added +return_path_on_delivery log selector.
3426
342778. A connection timeout was being treated differently from recipients deferred
3428 when testing hosts_max_try with a message that was older than the host's
3429 retry timeout. (The host should not be counted, thus allowing all hosts to
3430 be tried at least once before bouncing.) This may have been the cause of an
3431 occasionally reported bug whereby a message would remain on the queue
3432 longer than the retry timeout, but would be bounced if a delivery was
3433 forced. I say "may" because I never totally pinned down the problem;
3434 setting up timeout/retry tests is difficult. See also the next item.
3435
343679. The ultimate address timeout was not being applied to errors that involved
3437 a combination of host plus message (for example, a timeout on a MAIL
3438 command). When an address resolved to a number of possible hosts, and they
3439 were not all tried for each delivery (e.g. because of hosts_max_try), a
3440 message could remain on the queue longer than the retry timeout.
3441
344280. Sieve bug: "stop" inside "elsif" was broken. Applied a patch from Michael
3443 Haardt.
3444
344581. Fixed an obscure SMTP outgoing bug which required at least the following
3446 conditions: (a) there was another message waiting for the same server;
3447 (b) the server returned 5xx to all RCPT commands in the first message so
3448 that the message was not completed; (c) the server dropped the connection
3449 or gave a negative response to the RSET that Exim sends to abort the
3450 transaction. The observed case was a dropped connection after DATA that had
3451 been sent in pipelining mode. That is, the server had advertised PIPELINING
3452 but was not implementing it correctly. The effect of the bug was incorrect
3453 behaviour, such as trying another host, and this could lead to a crash.
3454
3455
3456Exim version 4.30
3457-----------------
3458
3459 1. The 3rd arguments to getsockname(), getpeername(), and accept() in exim.c
3460 and daemon.c were passed as pointers to ints; they should have been
3461 pointers to socklen_t variables (which are typically unsigned ints).
3462
3463 2. Some signed/unsigned type warnings in the os.c file for Linux have been
3464 fixed.
3465
3466 3. Fixed a really odd bug that affected only the testing scheme; patching a
3467 certain fixed string in the binary changed the value of another string that
3468 happened to be identical to the end of the original first string.
3469
3470 4. When gethostbyname() (or equivalent) is passed an IP address as a "host
3471 name", it returns that address as the IP address. On some operating
3472 systems (e.g. Solaris), it also passes back the IP address string as the
3473 "host name". However, on others (e.g. Linux), it passes back an empty
3474 string. Exim wasn't checking for this, and was changing the host name to an
3475 empty string, assuming it had been canonicized.
3476
3477 5. Although rare, it is permitted to have more than one PTR record for a given
3478 IP address. I thought that gethostbyaddr() or getipnodebyaddr() always gave
3479 all the names associated with an address, because they do in Solaris.
3480 However, it seems that they do not in Linux for data that comes from the
3481 DNS. If an address in /etc/hosts has multiple names, they _are_ all given.
3482 I found this out when I moved to a new Linux workstation and tried to run
3483 the Exim test suite.
3484
3485 To get round this problem I have changed the code so that it now does its
3486 own call to the DNS to look up PTR records when searching for a host name.
3487 If nothing can be found in the DNS, it tries gethostbyaddr(), so that
3488 addresses that are only in /etc/hosts are still found.
3489
3490 This behaviour is, however, controlled by an option called host_lookup_
3491 order, which defaults to "bydns:byaddr". If people want to use the other
3492 order, or indeed, just use one or the other means of lookup, they can
3493 specify it in this variable.
3494
3495 6. If a PTR record yields an empty name, Exim treats it as non-existent. In
3496 some operating systems, this comes back from gethostbyaddr() as an empty
3497 string, and this is what Exim used to test for. However, it seems that in
3498 other systems, "." is yielded. Exim now tests for this case too.
3499
3500 7. The values of check_spool_space and check_log_space are now held internally
3501 as a number of kilobytes instead of an absolute number of bytes. If a
3502 numbers is specified without 'K' or 'M', it is rounded up to the nearest
3503 kilobyte. This means that much larger values can be stored.
3504
3505 8. Exim monitor: an attempt to get the action menu when not actually pointing
3506 at a message produces an empty menu entitled "No message selected". This
3507 works on Solaris (OpenWindows). However, XFree86 does not like a menu with
3508 no entries in it ("Shell widget menu has zero width and/or height"). So I
3509 have added a single, blank menu entry in this case.
3510
3511 9. Added ${quote_local_part.
3512
351310. MIME decoding is now applied to the contents of Subject: header lines when
3514 they are logged.
3515
351611. Now that a reference to $sender_host_address automatically causes a reverse
3517 lookup to occur if necessary (4.13/18), there is no need to arrange for a
3518 host lookup before query-style lookups in lists that might use this
3519 variable. This has therefore been abolished, and the "net-" prefix is no
3520 longer necessary for query-style lookups.
3521
352212. The Makefile for SCO_SV contained a setting of LDFLAGS. This appears to
3523 have been a typo for LFLAGS, so it has been changed.
3524
352513. The install script calls Exim with "-C /dev/null" in order to find the
3526 version number. If ALT_CONFIG_PREFIX was set, this caused an error message
3527 to be output. Howeve, since Exim outputs its version number before the
3528 error, it didn't break the script. It just looked ugly. I fixed this by
3529 always allowing "-C /dev/null" if the caller is root.
3530
353114. Ignore overlarge ACL variable number when reading spool file - insurance
3532 against a later release with more variables having written the file.
3533
353415. The standard form for an IPv6 address literal was being rejected by EHLO.
3535 Example: [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3536 this, as well as the form without the "IPv6" on the front.
3537
353816. Added CHOWN_COMMAND=/usr/sbin/chown and LIBS=-lresolv to the
3539 OS/Makefile-Darwin file.
3540
354117. Fixed typo in lookups/ldap.c: D_LOOKUP should be D_lookup. This applied
3542 only to LDAP libraries that do not have LDAP_OPT_DEREF.
3543
354418. After change 4.21/52, "%ld" was used to format the contents of the $inode
3545 variable. However, some OS use ints for inodes. I've added cast to long int
3546 to get rid of the compiler warning.
3547
354819. I had forgotten to lock out "/../" in configuration file names when
3549 ALT_CONFIG_PREFIX was set.
3550
355120. Routers used for verification do not need to specify transports. However,
3552 if such a router generated a host list, and callout was configured, Exim
3553 crashed, because it could not find a port number from the (non-existent)
3554 transport. It now assumes port 25 in this circumstance.
3555
355621. Added the -t option to exigrep.
3557
355822. If LOOKUP_LSEARCH is defined, all three linear search methods (lsearch,
3559 wildlsearch, nwildlsearch) are compiled. LOOKUP_WILDLSEARCH and LOOKUP_
3560 NWILDLSEARCH are now obsolete, but retained for compatibility. If either of
3561 them is set, LOOKUP_LSEARCH is forced.
3562
356323. "exim -bV" now outputs a list of lookups that are included in the binary.
3564
356524. Added sender and host information to the "rejected by local_scan()" log
3566 line; previously there was no indication of these.
3567
356825. Added .include_if_exists.
3569
357026. Change 3.952/11 added an explicit directory sync on top of a file sync for
3571 Linux. It turns out that not all file systems support this. Apparently some
3572 versions of NFS do not. (It's rare to put Exim's spool on NFS, but people
3573 do it.) To cope with this, the error EINVAL, which means that sync-ing is
3574 not supported on the file descriptor, is now ignored when Exim is trying to
3575 sync a directory. This applies only to Linux.
3576
357727. Added -DBIND_8_COMPAT to the CLFAGS setting for Darwin.
3578
357928. In Darwin (MacOS X), the PAM headers are in /usr/include/pam and not in
3580 /usr/include/security. There's now a flag in OS/os.h-Darwin to cope with
3581 this.
3582
358329. Added support for maildirsize files from supplied patch (modified a bit).
3584
358530. The use of :fail: followed by an empty string could lead Exim to respond to
3586 sender verification failures with (e.g.):
3587
3588 550 Verification failed for <xxx>
3589 550 Sender verify failed
3590
3591 where the first response line was missing the '-' that indicates it is not
3592 the final line of the response.
3593
359431. The loop for finding the name of the user that called Exim had a hardwired
3595 limit of 10; it now uses the value of finduser_retries, which is used for
3596 all other user lookups.
3597
359832. Added $received_count variable, available in data and not_smtp ACLs, and at
3599 delivery time.
3600
360133. Exim was neglecting to zero errno before one call of strtol() when
3602 expanding a string and expecting an integer value. On some systems this
3603 resulted in spurious "integer overflow" errors. Also, it was casting the
3604 result into an int without checking.
3605
360634. Testing for a connection timeout using "timeout_connect" in the retry rules
3607 did not work. The code looks as if it has *never* worked, though it appears