Apply latest Sieve patches.
[exim.git] / doc / doc-txt / ChangeLog
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7c5214ec 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.476 2007/02/07 14:41:13 ph10 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
b4ed4da0
PH
6Exim version 4.67
7-----------------
8
22ad45c9
MH
9MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
10 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
11 Jan Srzednicki.
12
b4ed4da0
PH
13PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
14 issue a MAIL command.
15
431b7361
PH
16PH/02 In an ACL statement such as
17
18 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
19
20 if a client was not listed at all, or was listed with a value other than
21 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
22 the condition was not true (as it should be), so access was not denied.
23 The bug was that the ! inversion was incorrectly passed on to the second
24 item. This has been fixed.
25
26PH/03 Added additional dnslists conditions == and =& which are different from
27 = and & when the dns lookup returns more than one IP address.
28
83da1223
PH
29PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
30 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
31
54fc8428
PH
32PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
33 FSYNC, which compiles an option called disable_fsync that allows for
34 bypassing fsync(). The documentation is heavily laced with warnings.
35
34c5e8dd
SC
36SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
37
bbe15da8
PH
38PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
39 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
40 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
41 including adding "make clean"; (3) Added -fPIC when compiling the test
42 dynamically loaded module, to get rid of a warning.
43
0e8a9471
MH
44MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
45 message fails, move_frozen_messages = true and ignore_bounce_errors_after
46 = 0s. The bug is otherwise harmless.
47
f0872424
PH
48PH/07 There was a bug in the dovecot authenticator such that the value of
49 $auth1 could be overwritten, and so not correctly preserved, after a
50 successful authentication. This usually meant that the value preserved by
51 the server_setid option was incorrect.
52
b01dd148
PH
53PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
54
6bf342e1
PH
55PH/09 Installed PCRE release 7.0.
56
273f34d0
PH
57PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
58 run for batched SMTP input. It is now run at the start of every message
59 in the batch. While fixing this I discovered that the process information
60 (output by running exiwhat) was not always getting set for -bs and -bS
61 input. This is fixed, and it now also says "batched" for BSMTP.
62
cf8b11a5
PH
63PH/11 Added control=no_pipelining.
64
41c7c167
PH
65PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
66 patch, slightly modified), and move the expansion of helo_data till after
67 the connection is made in the smtp transport (so it can use these
68 values).
69
9c57cbc0
PH
70PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
71
f3f065bb
PH
72PH/14 Added log_selector = +pid.
73
047bdd8c
PH
74PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
75
0ce9abe6
PH
76PH/16 Add ${if forany and ${if forall.
77
0e22dfd1
PH
78PH/17 Added dsn_from option to vary the From: line in DSNs.
79
4c590bd1
PH
80PH/18 Flush SMTP output before performing a callout, unless control =
81 no_callout_flush is set.
82
09945f1e
PH
83PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
84 was true (the default) a successful delivery failed to delete the retry
85 item, thus causing premature timeout of the address. The bug is now
86 fixed.
87
c51b8e75
PH
88PH/20 Added hosts_avoid_pipelining to the smtp transport.
89
e28326d8
PH
90PH/21 Long custom messages for fakedefer and fakereject are now split up
91 into multiline reponses in the same way that messages for "deny" and
92 other ACL rejections are.
93
75b1493f
PH
94PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
95 with slight modification.
96
7c5214ec
PH
97PH/23 Applied sieve patches from the maintainer "tracking the latest notify
98 draft, changing the syntax and factoring some duplicate code".
99
b4ed4da0 100
5dd1517f
PH
101Exim version 4.66
102-----------------
103
104PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
105 fixed by 4.65/MH/01 (is this a record?) are fixed:
106
107 (i) An empty string was always treated as zero by the numeric comparison
108 operators. This behaviour has been restored.
109
110 (ii) It is documented that the numeric comparison operators always treat
111 their arguments as decimal numbers. This was broken in that numbers
112 starting with 0 were being interpreted as octal.
113
114 While fixing these problems I realized that there was another issue that
115 hadn't been noticed. Values of message_size_limit (both the global option
116 and the transport option) were treated as octal if they started with 0.
117 The documentation was vague. These values are now always treated as
118 decimal, and I will make that clear in the documentation.
119
120
93cfa765
TK
121Exim version 4.65
122-----------------
123
124TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
125 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
126 versions. (#438)
127
d6066548
MH
128MH/01 Don't check that the operands of numeric comparison operators are
129 integers when their expansion is in "skipping" mode (fixes bug
130 introduced by 4.64-PH/07).
131
4362ff0d
PH
132PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
133 child addresses, Exim now panics and dies. Previously, because the count
134 is held in a short int, deliveries were likely to be lost. As such a
135 large number of recipients for a single message is ridiculous
136 (performance will be very, very poor), I have chosen to impose a limit
137 rather than extend the field.
138
93cfa765 139
944e9e9c
TF
140Exim version 4.64
141-----------------
aa41d2de 142
21d74bd9
TK
143TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
144 leftover -K file (the existence of which was triggered by #402).
145 While we were at it, introduced process PID as part of the -K
146 filename. This should rule out race conditions when creating
147 these files.
148
149TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
150 processing considerably. Previous code took too long for large mails,
151 triggering a timeout which in turn triggers #401.
152
153TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
154 in the DK code in transports.c. sendfile() is not really portable,
155 hence the _LINUX specificness.
944e9e9c
TF
156
157TF/01 In the add_headers option to the mail command in an Exim filter,
158 there was a bug that Exim would claim a syntax error in any
159 header after the first one which had an odd number of characters
160 in the field name.
161
2b1c6e3a
PH
162PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
163 callout verification, Exim cached a "reject" for the entire domain. This
164 is correct for most verifications, but it is not correct for a recipient
165 verification with use_sender or use_postmaster set, because in that case
166 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
167 case of MAIL FROM:<> rejection from other early rejections (e.g.
168 rejection of HELO). When verifying a recipient using a non-null MAIL
169 address, the cache is ignored if it shows MAIL FROM:<> rejection.
170 Whatever the result of the callout, the value of the domain cache is
171 left unchanged (for any other kind of callout, getting as far as trying
172 RCPT means that the domain itself is ok).
173
1f872c80
PH
174PH/02 Tidied a number of unused variable and signed/unsigned warnings that
175 gcc 4.1.1 threw up.
176
177PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
178 manifest itself as EPIPE rather than ECONNECT. When tidying away a
179 session, the daemon ignores ECONNECT errors and logs others; it now
180 ignores EPIPE as well.
181
d203e649
PH
182PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
183 (quoted-printable decoding).
184
cc2ed8f7 185PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 186 later the small subsequent patch to fix an introduced bug.
f951fd57 187
ddfcd446
PH
188PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
189
d45b1de8
PH
190PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
191
192PH/08 An error is now given if message_size_limit is specified negative.
193
38a0a95f 194PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 195 to be given (somewhat) arbitrary names.
38a0a95f 196
a2405d83
JJ
197JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
198 in 4.64-PH/09.
199
200JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
201 miscellaneous code fixes
202
6ea85e9a
PH
203PH/10 Added the log_reject_target ACL modifier to specify where to log
204 rejections.
205
26da7e20
PH
206PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
207 hostname. This is wrong, because it relates to the incoming message (and
208 probably the interface on which it is arriving) and not to the outgoing
209 callout (which could be using a different interface). This has been
210 changed to use the value of the helo_data option from the smtp transport
211 instead - this is what is used when a message is actually being sent. If
212 there is no remote transport (possible with a router that sets up host
213 addresses), $smtp_active_hostname is used.
6ea85e9a 214
14aa5a05 215PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 216 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
217 (a) The code assumed that strncpy() returns a negative number on buffer
218 overflow, which isn't the case. Replaced with Exim's string_format()
219 function.
220 (b) There were several signed/unsigned issues. I just did the minimum
221 hacking in of casts. There is scope for a larger refactoring.
222 (c) The code used strcasecmp() which is not a standard C function.
223 Replaced with Exim's strcmpic() function.
224 (d) The code set only $1; it now sets $auth1 as well.
225 (e) A simple test gave the error "authentication client didn't specify
226 service in request". It would seem that Dovecot has changed its
227 interface. Fortunately there's a specification; I followed it and
228 changed what the client sends and it appears to be working now.
229
ff75a1f7
PH
230PH/13 Added $message_headers_raw to provide the headers without RFC 2047
231 decoding.
232
e6f6568e
PH
233PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
234 address A is aliased to B and C, where B exists and C does not. Without
235 -v the output is "A verified" because verification stops after a
236 successful redirection if more than one address is generated. However,
237 with -v the child addresses are also verified. Exim was outputting "A
238 failed to verify" and then showing the successful verification for C,
239 with its parentage. It now outputs "B failed to verify", showing B's
240 parentage before showing the successful verification of C.
241
d6f6e0dc
PH
242PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
243 look up a TXT record in a specific list after matching in a combined
244 list.
245
322050c2
PH
246PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
247 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
248 they consult the DNS. I had assumed they would set it the way they
249 wanted; and indeed my experiments on Linux seem to show that in some
250 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
251 To be on the safe side, however, I have now made the interface to
252 host_find_byname() similar to host_find_bydns(), with an argument
253 containing the DNS resolver options. The host_find_byname() function now
254 sets these options at its start, just as host_find_bydns() does. The smtp
255 transport options dns_qualify_single and dns_search_parents are passed to
256 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
257 of host_find_byname() use the default settings of RES_DEFNAMES
258 (qualify_single) but not RES_DNSRCH (search_parents).
259
08955dd3
PH
260PH/17 Applied (a modified version of) Nico Erfurth's patch to make
261 spool_read_header() do less string testing, by means of a preliminary
262 switch on the second character of optional "-foo" lines. (This is
263 overdue, caused by the large number of possibilities that now exist.
264 Originally there were few.) While I was there, I also converted the
265 str(n)cmp tests so they don't re-test the leading "-" and the first
266 character, in the hope this might squeeze out yet more improvement.
267
1eccaa59
PH
268PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
269 flag allowing group syntax was set by the header_syntax check but not
270 turned off, possible causing trouble later; (2) The flag was not being
271 set at all for the header_verify test, causing "group"-style headers to
272 be rejected. I have now set it in this case, and also caused header_
273 verify to ignore an empty address taken from a group. While doing this, I
274 came across some other cases where the code for allowing group syntax
275 while scanning a header line wasn't quite right (mostly, not resetting
276 the flag correctly in the right place). These bugs could have caused
277 trouble for malformed header lines. I hope it is now all correct.
278
602e59e5
PH
279PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
280 with the "reply" argument non-NULL. The code, however (which originally
281 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
282 but it didn't always do it. This confused somebody who was copying the
283 code for some other use. I have removed all the tests.
284
411ef850
PH
285PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
286 feature that was used to support insecure browsers during the U.S. crypto
287 embargo. It requires special client support, and Exim is probably the
288 only MTA that supported it -- and would never use it because real RSA is
289 always available. This code has been removed, because it had the bad
290 effect of slowing Exim down by computing (never used) parameters for the
291 RSA_EXPORT functionality.
292
7befa435
PH
293PH/21 On the advice of Timo Sirainen, added a check to the dovecot
294 authenticator to fail if there's a tab character in the incoming data
295 (there should never be unless someone is messing about, as it's supposed
296 to be base64-encoded). Also added, on Timo's advice, the "secured" option
297 if the connection is using TLS or if the remote IP is the same as the
298 local IP, and the "valid-client-cert option" if a client certificate has
299 been verified.
300
48da4259 301PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
302 authenticators. This can be used for authorization after authentication
303 succeeds. (In the case of plaintext, it servers for both authentication
304 and authorization.)
305
48da4259
PH
306PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
307 if any retry times were supplied.
308
d1d5595c
PH
309PH/24 Exim crashed if verify=helo was activated during an incoming -bs
310 connection, where there is no client IP address to check. In this
311 situation, the verify now always succeeds.
312
0ef732d9
PH
313PH/25 Applied John Jetmore's -Mset patch.
314
328895cc
PH
315PH/26 Added -bem to be like -Mset, but loading a message from a file.
316
fd700877
PH
317PH/27 In a string expansion for a processed (not raw) header when multiple
318 headers of the same name were present, leading whitespace was being
319 removed from all of them, but trailing whitespace was being removed only
320 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
321 before concatenation. Completely empty headers in a concatenation (as
322 before) are ignored.
fd700877 323
8dce1a6f
PH
324PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
325 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
326
17af4a17
PH
327PH/29 [Removed. This was a change that I later backed out, and forgot to
328 correct the ChangeLog entry (that I had efficiently created) before
329 committing the later change.]
f6c332bd
PH
330
331PH/30 Exim was sometimes attempting to deliver messages that had suffered
332 address errors (4xx response to RCPT) over the same connection as other
333 messages routed to the same hosts. Such deliveries are always "forced",
334 so retry times are not inspected. This resulted in far too many retries
335 for the affected addresses. The effect occurred only when there were more
336 hosts than the hosts_max_try setting in the smtp transport when it had
337 the 4xx errors. Those hosts that it had tried were not added to the list
338 of hosts for which the message was waiting, so if all were tried, there
339 was no problem. Two fixes have been applied:
340
341 (i) If there are any address or message errors in an SMTP delivery, none
342 of the hosts (tried or untried) are now added to the list of hosts
343 for which the message is waiting, so the message should not be a
344 candidate for sending over the same connection that was used for a
345 successful delivery of some other message. This seems entirely
346 reasonable: after all the message is NOT "waiting for some host".
347 This is so "obvious" that I'm not sure why it wasn't done
348 previously. Hope I haven't missed anything, but it can't do any
349 harm, as the worst effect is to miss an optimization.
350
351 (ii) If, despite (i), such a delivery is accidentally attempted, the
352 routing retry time is respected, so at least it doesn't keep
353 hammering the server.
354
c1114884
PH
355PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
356 in ${readsocket because some servers need this prod.
357
7a0743eb
PH
358PH/32 Added some extra debug output when updating a wait-xxx database.
359
0d85fa3f
PH
360PH/33 The hint "could be header name not terminated by colon", which has been
361 given for certain expansion errors for a long time, was not being given
362 for the ${if def:h_colon_omitted{... case.
363
1bf43b78
PH
364PH/34 The spec says: "With one important exception, whenever a domain list is
365 being scanned, $domain contains the subject domain." There was at least
366 one case where this was not true.
367
520de300
PH
368PH/35 The error "getsockname() failed: connection reset by peer" was being
369 written to the panic log as well as the main log, but it isn't really
370 panic-worthy as it just means the connection died rather early on. I have
371 removed the panic log writing for the ECONNRESET error when getsockname()
372 fails.
373
48c7f9e2
PH
374PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
375 runs only) independently of the message's sender address. This meant
376 that, if the 4xx error was in fact related to the sender, a different
377 message to the same recipient with a different sender could confuse
378 things. In particualar, this can happen when sending to a greylisting
379 server, but other circumstances could also provoke similar problems.
380 I have changed the default so that the retry time for these errors is now
381 based a combination of the sender and recipient addresses. This change
382 can be overridden by setting address_retry_include_sender=false in the
383 smtp transport.
384
99ea1c86
PH
385PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
386 remote server are returned as part of bounce messages. This was not
387 happening for LMTP over a pipe (the lmtp transport), but now it is the
388 same for both kinds of LMTP.
389
a2042e78
PH
390PH/38 Despite being documented as not happening, Exim was rewriting addresses
391 in header lines that were in fact CNAMEs. This is no longer the case.
392
4fbcfc2e
PH
393PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
394 and queue runs started by the daemon processed all messages. This has
395 been fixed so that -R and -S can now usefully be given with -q<time>.
396
aa41d2de
PH
397PH/40 Import PCRE release 6.7 (fixes some bugs).
398
af561417
PH
399PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
400
3cc66b45
PH
401PH/42 Give an error if -q is specified more than once.
402
194cc0e4
PH
403PH/43 Renamed the variables $interface_address and $interface_port as
404 $received_ip_address and $received_port, to make it clear that these
405 values apply to message reception, and not to the outgoing interface when
406 a message is delivered. (The old names remain recognized, of course.)
407
a401ddaa
PH
408PH/44 There was no timeout on the connect() call when using a Unix domain
409 socket in the ${readsocket expansion. There now is.
410
4e88a19f
PH
411PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
412 be meaningful with "accept".
413
d7d7b289
SC
414SC/01 Eximstats V1.43
415 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
416
417SC/02 Eximstats V1.44
418 Use a glob alias rather than an array ref in the generated
419 parser. This improves both readability and performance.
420
421SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
422 Collect SpamAssassin and rejection statistics.
423 Don't display local sender or destination tables unless
424 there is data to show.
425 Added average volumes into the top table text output.
426
427SC/04 Eximstats V1.46
428 Collect data on the number of addresses (recipients)
429 as well as the number of messages.
430
431SC/05 Eximstats V1.47
432 Added 'Message too big' to the list of mail rejection
433 reasons (thanks to Marco Gaiarin).
434
435SC/06 Eximstats V1.48
436 Mainlog lines which have GMT offsets and are too short to
437 have a flag are now skipped.
438
439SC/07 Eximstats V1.49 (Alain Williams)
440 Added the -emptyok flag.
441
442SC/08 Eximstats V1.50
443 Fixes for obtaining the IP address from reject messages.
444
0ea2a468
JJ
445JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
446 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
447 whitesspace changes from 4.64-PH/27
448
449JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
450 match 4.64-PH/13
451
452JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
453 are found, allow negative numbers in numeric criteria)
454
455JJ/06 exipick.20061117.2, added new $message_body_missing variable
456
457JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
458 to match changes made in 4.64-PH/43
459
8a10f5a4
PH
460PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
461
30e18802
PH
462PH/47 Put in an explicit test for a DNS lookup of an address record where the
463 "domain" is actually an IP address, and force a failure. This locks out
464 those revolvers/nameservers that support "A-for-A" lookups, in
465 contravention of the specifications.
466
55728a4f
PH
467PH/48 When a host name was looked up from an IP address, and the subsequent
468 forward lookup of the name timed out, the host name was left in
469 $sender_host_name, contrary to the specification.
d7d7b289 470
d7837193
PH
471PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
472 restricted to single-key lookups, Exim was not diagnosing an error if
473 * or *@ was used with a query-style lookup.
474
87054a31
PH
475PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
476
ea2c01d2
MH
477MH/01 local_scan ABI version incremented to 1.1. It should have been updated
478 long ago, but noone interested enough thought of it. Let's just say that
479 the "1.1" means that there are some new functions that weren't there at
480 some point in the past.
481
e4fa6968
PH
482PH/51 Error processing for expansion failure of helo_data from an smtp
483 transport during callout processing was broken.
484
56f5d9bd
PH
485PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
486 tested/used via the -bh/-bhc/-bs options.
487
922e1c28
PH
488PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
489 bug, fixed in subsequent PCRE releases).
490
21eb6e72
PH
491PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
492 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
493
a0540757
PH
494PH/55 Check for a ridiculously long file name in exim_dbmbuild.
495
944e9e9c 496
478be7b0
SC
497Exim version 4.63
498-----------------
499
500SC/01 Use a glob alias rather than an array ref in eximstats generated
501 parser. This improves both readability and performance.
502
503SC/02 Collect SpamAssassin and rejection statistics in eximstats.
504 Don't display local sender or destination tables in eximstats unless
505 there is data to show.
506 Added average volumes into the eximstats top table text output.
507
508SC/03 Collect data on the number of addresses (recipients) as well
509 as the number of messages in eximstats.
510
2b965a65
TF
511TF/01 Correct an error in the documentation for the redirect router. Exim
512 does (usually) call initgroups() when daemonizing.
478be7b0 513
45b91596
PH
514TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
515 with consistent privilege compared to when running as a daemon.
478be7b0 516
c59f5781
TF
517TF/03 Note in the spec that $authenticated_id is not set for local
518 submissions from trusted users.
519
90fc3069
TF
520TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
521 Thanks to Dean Brooks <dean@iglou.com> for the patch.
522
6083aca0
TF
523TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
524 by adding some example configuration directives to the default
525 configuration file. A little bit of work is required to uncomment the
526 directives and define how usernames and passwords are checked, but
527 there is now a framework to start from.
528
765b530f
PH
529PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
530 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
531 without this. I don't know how relevant this is to other LDAP libraries.
532
4e167a8c
PH
533PH/02 Add the verb name to the "unknown ACL verb" error.
534
4608d683
PH
535PH/03 Magnus Holmgren's patch for filter_prepend_home.
536
b8dc3e4a
PH
537PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
538
5418e93b
PH
539PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
540 directory not expanded when it should be if an expanded home directory
541 was set for the address (which is overridden by the transport).
542
b4a9bda2
PH
543PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
544 libradius.
545
45b91596
PH
546PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
547 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
548 because it is too late at that time, and has no effect.
549
5547e2c5
PH
550PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
551 security issue with \' (bugzilla #107). I could not use the
552 PQescapeStringConn() function, because it needs a PGconn value as one of
553 its arguments.
554
dbcef0ea
PH
555PH/08 When testing addresses using -bt, indicate those final addresses that
556 are duplicates that would not cause an additional delivery. At least one
557 person was confused, thinking that -bt output corresponded to deliveries.
558 (Suppressing duplicates isn't a good idea as you lose the information
559 about possibly different redirections that led to the duplicates.)
560
25257489
PH
561PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
562 systems where poll() doesn't work, in particular OS X.
563
c816d124
PH
564PH/10 Added more information to debugging output for retry time not reached.
565
a9ccd69a
PH
566PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
567 operations in malware.c.
568
75fa1910
PH
569PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
570 signatures.
571
a7d7aa58
PH
572PH/13 If write_rejectlog was set false when logging was sent to syslog with
573 syslog_duplication set false, log lines that would normally be written
574 both the the main log and to the reject log were not written to syslog at
575 all.
576
42119b09
PH
577PH/14 In the default configuration, change the use of "message" in ACL warn
578 statements to "add_header".
579
41609df5
PH
580PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
581 not followed by a command (e.g. "seen endif").
582
a5bd321b
PH
583PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
584 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
585 latter.
586
e85a7ad5 587PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
588 so that it is now:
589
e85a7ad5
PH
590 ${if or { \
591 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
592 { match{$h_precedence:}{(?i)bulk|list|junk} } \
593 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
594 }{no}{yes}}
595
e85a7ad5
PH
596 The Auto-Submitted: and various List- headers are standardised, whereas I
597 don't think Precedence: ever was.
5dff5817 598
d8fe1c03
PH
599PH/18 Refactored debugging code in route_finduser() to show more information,
600 in particular, the error code if getpwnam() issues one.
601
16282d2b
PH
602PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
603 This is apparently needed in addition to the PH/07 change above to avoid
604 any possible encoding problems.
605
35d40a98
PH
606PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
607 but not after initializing Perl.
608
034d99ab
PH
609PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
610 output them only if debugging. By default they are written stderr,
611 apparently, which is not desirable.
612
6ec97b1b
PH
613PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
614 queries.
615
e22ca4ac
JJ
616JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
617 --not options
618
619JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
620
33d73e3b
PH
621PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
622 authenticated or an ident call has been made. Suppress the default
623 values for $authenticated_id and $authenticated_sender (but permit -oMai
624 and -oMas) when testing with -bh.
625
9ecb03f3
PH
626PH/24 Re-jigged the order of the tests in the default configuration so that the
627 tests for valid domains and recipients precede the DNS black list and CSA
628 tests, on the grounds that those ones are more expensive.
629
084efe8d
PH
630PH/25 Exim was not testing for a space following SMTP commands such as EHLO
631 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
632 This bug exists in every version of Exim that I still have, right back to
633 0.12.
634
366fc9f0
PH
635PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
636 However, an attempt to turn on case-sensitivity in a regex key by
637 including (?-i) didn't work because the subject string was already
638 lowercased, and the effects were non-intuitive. It turns out that a
639 one-line patch can be used to allow (?-i) to work as expected.
640
c59f5781 641
c887c79e
TF
642Exim version 4.62
643-----------------
644
645TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
646 other effects) broke the use of negated acl sub-conditions.
647
1cce3af8
PH
648PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
649 patch).
650
afb3eaaf
PH
651PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
652 "Deny" causes Exim to reject the incoming connection with a 554 error.
653 Unfortunately, if there is a major crisis, such as a disk failure,
654 tcp-wrappers gives "deny", whereas what one would like would be some
655 kind of temporary error. A kludge has been added to help with this.
656 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
657 554 error is used if errno is still zero or contains ENOENT (which occurs
658 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
659 451 error is used.
660
e173618b
PH
661PH/03 Add -lutil to the default FreeBSD LIBS setting.
662
dd16e114
PH
663PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
664 errors. Otherwise a message that provokes a temporary error (when other
665 messages do not) can cause a whole host to time out.
666
f7fd3850
PH
667PH/05 Batch deliveries by appendfile and pipe transports did not work when the
668 addresses were routed directly to files or pipes from a redirect router.
669 File deliveries just didn't batch; pipe deliveries might have suffered
670 odd errors.
671
d87df92c
PH
672PH/06 A failure to get a lock for a hints database would erroneously always say
673 "Failed to get write lock", even when it was really a read lock.
674
7e9f683d
PH
675PH/07 The appendfile transport was creating MBX lock files with a fixed mode
676 of 0600. This has been changed to use the value of the lockfile_mode
677 option (which defaults to 0600).
678
bfad5236
PH
679PH/08 Applied small patch from the Sieve maintainer.
680
01c490df
PH
681PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
682 folder from quota calculations, a direct delivery into this folder messed
683 up the contents of the maildirsize file. This was because the regex was
684 used only to exclude .Trash (or whatever) when the size of the mailbox
685 was calculated. There was no check that a delivery was happening into an
686 excluded directory. This bug has been fixed by ignoring all quota
687 processing for deliveries into excluded directories.
688
d6629cdc
PH
689PH/10 Added the maildirfolder_create_regex option to appendfile.
690
1cce3af8 691
214e2000
PH
692Exim version 4.61
693-----------------
694
695PH/01 The code for finding all the local interface addresses on a FreeBSD
696 system running IPv6 was broken. This may well have applied to all BSD
697 systems, as well as to others that have similar system calls. The broken
698 code found IPv4 interfaces correctly, but gave incorrect values for the
699 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
700 that it would not match correctly against @[] and not recognize the IPv6
701 addresses as local.
702
f9daeae0
PH
703PH/02 The ipliteral router was not recognizing addresses of the form user@
704 [ipv6:....] because it didn't know about the "ipv6:" prefix.
705
7e66e54d
PH
706PH/03 Added disable_ipv6.
707
c8ea1597
PH
708PH/04 Changed $reply_address to use the raw form of the headers instead of the
709 decoded form, because it is most often used to construct To: headers
710 lines in autoreplies, and the decoded form may well be syntactically
711 invalid. However, $reply_address has leading white space removed, and all
712 newlines turned into spaces so that the autoreply transport does not
713 grumble.
714
911f6fde
PH
715PH/05 If group was specified without a user on a router, and no group or user
716 was specified on a transport, the group from the router was ignored.
717
47ca6d6c
PH
718PH/06 Increased the number of ACL variables to 20 of each type, and arranged
719 for visible compile-time settings that can be used to change these
720 numbers, for those that want even more. Backwards compatibility with old
721 spool files has been maintained. However, going back to a previous Exim
722 release will lost any variables that are in spool files.
723
ed0e9820
PH
724PH/07 Two small changes when running in the test harness: increase delay when
725 passing a TCP/IP connection to a new process, in case the original
726 process has to generate a bounce, and remove special handling of
727 127.0.0.2 (sic), which is no longer necessary.
728
eff37e47
PH
729PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
730 be the same on different OS.
731
1921d2ea
PH
732PH/09 Moved a debug statement in filter processing to avoid a race problem when
733 testing.
734
b3f69ca8
JJ
735JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
736 whether --show-vars was specified or not
737
738JJ/02 exipick: Added support for new ACL variable spool format introduced
739 in 4.61-PH/06
740
424a1c63
PH
741PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
742 syntactically invalid From: or Reply-to: line, and a filter used this to
743 generate an autoreply, and therefore failed to obtain an address for the
744 autoreply, Exim could try to deliver to a non-existent relative file
745 name, causing unrelated and misleading errors. What now happens is that
746 it logs this as a hard delivery error, but does not attempt to create a
747 bounce message.
748
7a100415
PH
749PH/11 The exinext utility has a -C option for testing purposes, but although
750 the given file was scanned by exinext itself; it wasn't being passed on
751 when Exim was called.
752
19b9dc85
PH
753PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
754 an end-of-file indication when reading a command response.
755
309bd837
PH
756PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
757 compiled. In many other places in Exim, IPv6 addresses are always
758 recognized, so I have changed this. It also means that IPv4 domain
759 literals of the form [IPV4:n.n.n.n] are now always recognized.
760
59e82a2a
PH
761PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
762 used if the router is not running as root, for example, when verifying at
763 ACL time, or when using -bh. The debugging output from this situation was
764 non-existent - all you got was a failure to exec. I have made two
765 changes:
766
767 (a) Failures to set uid/gid, the current directory, or a process leader
768 in a subprocess such as that created by queryprogram now generate
769 suitable debugging ouput when -d is set.
770
771 (b) The queryprogram router detects when it is not running as root,
772 outputs suitable debugging information if -d is set, and then runs
773 the subprocess without attempting to change uid/gid.
774
9edc04ce
PH
775PH/15 Minor change to Makefile for building test_host (undocumented testing
776 feature).
777
1349e1e5
PH
778PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
779 additional section of a DNS packet that returns MX or SRV records.
780 Instead, it always explicitly searches for A/AAAA records. This avoids
781 major problems that occur when a DNS server includes only records of one
782 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
783 fixed another bug: if SRV records were looked up and the corresponding
784 address records were *not* found in the additional section, the port
785 values from the SRV records were lost.
786
ea49d0e1
PH
787PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
788 using the correct key (the original address) when searching the retry
789 rules in order to find which one to use for generating the retry hint.
790
064a94c9
PH
791PH/18 If quota_warn_message contains a From: header, Exim now refrains from
792 adding the default one. Similarly, if it contains a Reply-To: header, the
793 errors_reply_to option, if set, is not used.
794
727071f8
PH
795PH/19 When calculating a retry time, Exim used to measure the "time since
796 failure" by looking at the "first failed" field in the retry record. Now
797 it does not use this if it is later than than the arrival time of the
798 message. Instead it uses the arrival time. This makes for better
799 behaviour in cases where some deliveries succeed, thus re-setting the
800 "first failed" field. An example is a quota failure for a huge message
801 when small messages continue to be delivered. Without this change, the
802 "time since failure" will always be short, possible causing more frequent
803 delivery attempts for the huge message than are intended.
dd16e114 804 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 805
f78eb7c6
PH
806PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
807 $1, $2, $3) because the numerical variables can be reset during some
808 expansion items (e.g. "match"), thereby losing the authentication data.
809
21c28500
PH
810PH/21 Make -bV show the size of off_t variables so that the test suite can
811 decide whether to run tests for quotas > 2G.
812
813PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
814 mailbox_size, and mailbox_filecount in the appendfile transport. If a
815 filecount value is greater than 2G or if a quota value is greater than 2G
816 on a system where the size of off_t is not greater than 4, a panic error
817 is given.
818
1688f43b
PH
819PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
820 never match. The debug and -bh output now contains an explicit error
821 message indicating a malformed IPv4 address or mask.
822
823PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
824 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
825 PH/23 above applies.
826
9675b384
PH
827PH/25 Do not write to syslog when running in the test harness. The only
828 occasion when this arises is a failure to open the main or panic logs
829 (for which there is an explicit test).
830
6a3f1455
PH
831PH/26 Added the /no_tell option to "control=freeze".
832
dac79d3e
PH
833PH/27 If a host name lookup failed very early in a connection, for example, if
834 the IP address matched host_lookup and the reverse lookup yielded a name
835 that did not have a forward lookup, an error message of the form "no IP
836 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
837 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 838
5977a0b3
PH
839PH/28 An enabling patch from MH: add new function child_open_exim2() which
840 allows the sender and the authenticated sender to be set when
841 submitting a message from within Exim. Since child_open_exim() is
842 documented for local_scan(), the new function should be too.
843
c91535f3
PH
844PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
845 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
846 results in an empty string is now treated as unset.
847
0d46a8c8
PH
848PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
849
278c6e6c
PH
850PH/31 Added sender_verify_fail logging option.
851
2cbb4081
PH
852PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
853 needed by RFC 822 but not by RFC 2822 was commented out. I have now
854 tidied the source and removed it altogether.
855
3eef829e
PH
856PH/33 When a queue run was abandoned because the load average was too high, a
857 log line was always written; now it is written only if the queue_run log
858 selector is set. In addition, the log line for abandonment now contains
859 information about the queue run such as the pid. This is always present
860 in "start" and "stop" lines but was omitted from the "abandon" line.
861
1ab95fa6
PH
862PH/34 Omit spaces between a header name and the colon in the error message that
863 is given when verify = headers_syntax fails (if there are lots of them,
864 the message gets confusing).
865
230205fc
PH
866PH/35 Change the default for dns_check_names_pattern to allow slashes within
867 names, as there are now some PTR records that contain slashes. This check
868 is only to protect against broken name servers that fall over on strange
869 characters, so the fact that it applies to all lookups doesn't matter.
870
75e0e026
PH
871PH/36 Now that the new test suite is complete, we can remove some of the
872 special code in Exim that was needed for the old test suite. For example,
873 sorting DNS records because real resolvers return them in an arbitrary
874 order. The new test suite's fake resolver always returns records in the
875 same order.
876
877PH/37 When running in the test harness, use -odi for submitted messages (e.g.
878 bounces) except when queue_only is set, to avoid logging races between
879 the different processes.
880
145396a6
PH
881PH/38 Panic-die if .include specifies a non-absolute path.
882
3cd34f13
PH
883PH/39 A tweak to the "H" retry rule from its user.
884
11121d3d
JJ
885JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
886 a label. They prevented compilation on older perls.
887
888JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
889 a warning to be raised on newish perls.
890
891JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
892 on queue. Changes to match documented behaviour of showing count of
893 messages matching specified criteria.
894
8def5aaf
PH
895PH/40 Changed the default ident timeout from 30s to 5s.
896
929ba01c
PH
897PH/41 Added support for the use of login_cap features, on those BSD systems
898 that have them, for controlling the resources used by pipe deliveries.
899
2632889e
PH
900PH/42 The content-scanning code uses fopen() to create files in which to put
901 message data. Previously it was not paying any attention to the mode of
902 the files. Exim runs with umask(0) because the rest of the code creates
903 files with open(), and sets the required mode explicitly. Thus, these
904 files were ending up world-writeable. This was not a big issue, because,
905 being within the spool directory, they were not world-accessible. I have
906 created a function called modefopen, which takes an additional mode
907 argument. It sets umask(777), creates the file, chmods it to the required
908 mode, then resets the umask. All the relevant calls to fopen() in the
909 content scanning code have been changed to use this function.
910
944a9c55
PH
911PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
912 to 24 hours. This avoids potential overflow problems when processing G
913 and H retry rules. I suspect nobody ever tinkers with this value.
914
4a23603b
PH
915PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
916
4730f942
PH
917PH/45 When the plaintext authenticator is running as a client, the server's
918 challenges are checked to ensure they are valid base64 strings. By
919 default, the authentication attempt is cancelled if an invalid string is
920 received. Setting client_ignore_invalid_base64 true ignores these errors.
921 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
922 they are received. Thus, the responses can be made to depend on the
923 challenges. If an invalid string is ignored, an empty string is placed in
924 the variable.
925
30dba1e6
PH
926PH/46 Messages that are created by the autoreply transport now contains a
927 References: header, in accordance with RFCs 2822 and 3834.
928
382afc6b
PH
929PH/47 Added authenticated_sender_force to the smtp transport.
930
a86229cf
PH
931PH/48 The ${prvs expansion was broken on systems where time_t was long long.
932
50c99ba6
PH
933PH/49 Installed latest patch from the Sieve maintainer.
934
d35e429d
PH
935PH/50 When an Exim quota was set without a file count quota, and mailbox_size
936 was also set, the appendfile transport was unnecessarily scanning a
937 directory of message files (e.g. for maildir delivery) to find the count
938 of files (along with the size), even though it did not need this
939 information. It now does the scan only if it needs to find either the
940 size of the count of files.
941
f90d018c
PH
942PH/51 Added ${time_eval: to convert Exim time strings into seconds.
943
75def545
PH
944PH/52 Two bugs concerned with error handling when the smtp transport is
945 used in LMTP mode:
946
947 (i) Exim was not creating retry information for temporary errors given
948 for individual recipients after the DATA command when the smtp transport
949 was used in LMTP mode. This meant that they could be retried too
950 frequently, and not timed out correctly.
951
952 (ii) Exim was setting the flag that allows error details to be returned
953 for LMTP errors on RCPT commands, but not for LMTP errors for individual
954 recipients that were returned after the DATA command.
955
956PH/53 This is related to PH/52, but is more general: for any failing address,
957 when detailed error information was permitted to be returned to the
958 sender, but the error was temporary, then after the final timeout, only
959 "retry timeout exceeded" was returned. Now it returns the full error as
960 well as "retry timeout exceeded".
961
c46782ef
PH
962PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
963 do this, and (what is worse) MTAs that accept it.
964
71fafd95
PH
965PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
966 will now be deprecated.
967
2c5db4fd
PH
968PH/56 New os.c-cygwin from the Cygwin maintainer.
969
9cf6b11a
JJ
970JJ/06 exipick: added --unsorted option to allow unsorted output in all output
971 formats (previously only available in exim formats via -bpr, -bpru,
972 and -bpra. Now also available in native and exiqgrep formats)
973
974JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
975 with very large, slow to parse queues
976
977JJ/08 exipick: added ! as generic prefix to negate any criteria format
978
979JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
980
898d150f
PH
981PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
982 responses to authentication challenges, though it was showing the
983 challenges; (ii) I've removed the CR characters from the debug output for
984 SMTP output lines.
985
46218253
PH
986PH/58 Allow for the insertion of a newline as well as a space when a string
987 is turned into more than one encoded-word during RFC 2047 encoding. The
988 Sieve code now uses this.
989
e97957bc
PH
990PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
991 data_4xx, lost_connection, tls_required.
992
81e509d7
PH
993PH/60 When a VRFY deferred or FAILED, the log message rather than the user
994 message was being sent as an SMTP response.
995
3d240ff7
PH
996PH/61 Add -l and -k options to exicyclog.
997
b37c4101
PH
998PH/62 When verifying, if an address was redirected to one new address, so that
999 verification continued, and the new address failed or deferred after
1000 having set something in $address_data, the value of $address_data was not
1001 passed back to the ACL. This was different to the case when no
1002 redirection occurred. The value is now passed back in both cases.
1003
79378e0f
PH
1004PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1005 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1006 use login_cap.h, so on its own it isn't the distinguishing feature. The
1007 new name refers directly to the setclassresources() function.
1008
e49c7bb4
PH
1009PH/65 Added configuration files for NetBSD3.
1010
d114ec46
PH
1011PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1012
f3d7df6c
PH
1013PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1014 is preferred over IPv4.
1015
715ab376
PH
1016PH/68 The bounce_return_message and bounce_return_body options were not being
1017 honoured for bounces generated during the reception of non-SMTP messages.
1018 In particular, this applied to messages rejected by the ACL. This bug has
1019 been fixed. However, if bounce_return_message is true and bounce_return_
1020 body is false, the headers that are returned for a non-SMTP message
1021 include only those that have been read before the error was detected.
1022 (In the case of an ACL rejection, they have all been read.)
1023
6b31b150
PH
1024PH/69 The HTML version of the specification is now built in a directory called
1025 spec_html instead of spec.html, because the latter looks like a path with
1026 a MIME-type, and this confuses some software.
1027
1028PH/70 Catch two compiler warnings in sieve.c.
1029
d515a917
PH
1030PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1031 function verify_get_ident() calls ip_connect() to connect a socket, but
1032 if the "connect()" function timed out, ip_connect() used to close the
1033 socket. However, verify_get_ident() also closes the socket later, and in
1034 between Exim writes to the log, which may get opened at this point. When
1035 the socket was closed in ip_connect(), the log could get the same file
1036 descriptor number as the socket. This naturally causes chaos. The fix is
1037 not to close the socket in ip_connect(); the socket should be closed by
1038 the function that creates it. There was only one place in the code where
1039 this was missing, in the iplookup router, which I don't think anybody now
1040 uses, but I've fixed it anyway.
1041
9b8fadde
PH
1042PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1043 well as to direct DNS lookups. Otherwise the handling of names in host
1044 lists is inconsistent and therefore confusing.
1045
214e2000 1046
5de37277
PH
1047Exim version 4.60
1048-----------------
1049
cc38ddbf
PH
1050PH/01 Two changes to the default runtime configuration:
1051
1052 (1) Move the checks for relay_from_hosts and authenticated clients from
1053 after to before the (commented out) DNS black list checks.
1054
1055 (2) Add control=submission to the relay_from_hosts and authenticated
1056 clients checks, on the grounds that messages accepted by these
1057 statements are most likely to be submissions.
5de37277 1058
72fdd6ae
PH
1059PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1060
1061 (1) Generate an error if the third argument for the ${prvs expansion is
1062 not a single digit.
1063
1064 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1065 string.
1066
1067 (3) Reset the variables that are obtained from the first argument of
1068 ${prvscheck and used in the second argument before leaving the code,
1069 because their memory is reclaimed, so using them afterwards may do
1070 silly things.
1071
1072 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1073 one (it's much easier than Tom thought :-).
1074
1075 (5) Because of (4), we can now allow for the use of $prvscheck_result
1076 inside the third argument.
cb9328de 1077
cb741023
PH
1078PH/03 For some reason, the default setting of PATH when running a command from
1079 a pipe transport was just "/usr/bin". I have changed it to
1080 "/bin:/usr/bin".
1081
f174f16e
PH
1082PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1083 anything to be listed in the output from -bV.
b2f5a032 1084
c25242d7
PH
1085PH/05 When a filter generated an autoreply, the entire To: header line was
1086 quoted in the delivery log line, like this:
1087
1088 => >A.N.Other <ano@some.domain> <original@ddress> ...
1089
1090 This has been changed so that it extracts the operative address. There
1091 may be more than one such address. If so, they are comma-separated, like
1092 this:
1093
1094 => >ano@some.domain,ona@other.domain <original@ddress> ...
1095
82c19f95
PH
1096PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1097 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1098 not being looked up in the rDNS to get a host name, Exim was showing the
1099 IP address twice in Received: lines, even though the IP addresses were
1100 identical. For example:
1101
1102 Received: from [1.2.3.4] (helo=[1.2.3.4])
1103
1104 However, if the real host name was known, it was omitting the HELO data
1105 if it matched the actual IP address. This has been tidied up so that it
1106 doesn't show the same IP address twice.
1107
d7ffbc12
PH
1108PH/07 When both +timestamp and +memory debugging was on, the value given by
1109 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1110 called by the debug printing, thereby overwriting the timestamp buffer.
1111 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1112
9f526266
PH
1113PH/08 When the original message was included in an autoreply transport, it
1114 always said "this is a copy of the message, including all the headers",
1115 even if body_only or headers_only was set. It now gives an appropriate
1116 message.
1117
87fcc8b9
PH
1118PH/09 Applied a patch from the Sieve maintainer which:
1119
1120 o fixes some comments
1121 o adds the (disabled) notify extension core
1122 o adds some debug output for the result of if/elsif tests
1123 o points to the current vacation draft in the documentation
1124 and documents the missing references header update
1125
1126 and most important:
1127
1128 o fixes a bug in processing the envelope test (when testing
1129 multiple envelope elements, the last element determinted the
1130 result)
1131
456682f5
PH
1132PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1133 Electronic Mail") by including:
1134
1135 Auto-submitted: auto-generated
1136
1137 in the messages that it generates (bounce messages and others, such as
1138 warnings). In the case of bounce messages for non-SMTP mesages, there was
1139 also a typo: it was using "Auto_submitted" (underscore instead of
1140 hyphen). Since every message generated by Exim is necessarily in response
1141 to another message, thes have all been changed to:
1142
1143 Auto-Submitted: auto-replied
1144
1145 in accordance with these statements in the RFC:
1146
1147 The auto-replied keyword:
1148
1149 - SHOULD be used on messages sent in direct response to another
1150 message by an automatic process,
1151
1152 - MUST NOT be used on manually-generated messages,
1153
1154 - MAY be used on Delivery Status Notifications (DSNs) and Message
1155 Disposition Notifications (MDNs),
1156
1157 - MUST NOT be used on messages generated by automatic or periodic
1158 processes, except for messages which are automatic responses to
1159 other messages.
1160
3e46c1aa
PH
1161PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1162 to the default Received: header definition.
456682f5 1163
49826d12
PH
1164PH/12 Added log selector acl_warn_skipped (default on).
1165
eba0c039
PH
1166PH/13 After a successful wildlsearch lookup, discard the values of numeric
1167 variables because (a) they are in the wrong storage pool and (b) even if
1168 they were copied, it wouldn't work properly because of the caching.
1169
a0d6ba8a
PH
1170PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1171 checking when decoding. Apparently there are clients that generate
1172 overlong encoded strings. Why am I not surprised?
1173
f0917727
PH
1174PH/15 If the first argument of "${if match_address" was not empty, but did not
1175 contain an "@" character, Exim crashed. Now it writes a panic log message
1176 and treats the condition as false.
1177
096fee00
PH
1178PH/16 In autoreply, treat an empty string for "once" the same as unset.
1179
024bd3c2
PH
1180PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1181 extension "envelope-auth". The code is finished and in agreement with
1182 other implementations, but there is no documentation so far and in fact,
1183 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1184 not changing the active code.
1185
1186 Print executed "if" and "elsif" statements when debugging is used. This
1187 helps a great deal to understand what a filter does.
1188
1189 Document more things not specified clearly in RFC3028. I had all this
1190 sorted out, when out of a sudden new issues came to my mind. Oops."
1191
df199fec
PH
1192PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1193 (Bugzilla #53).
1194
d27f1df3
PH
1195PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1196 canonical form (as documented). However, after a host name lookup from
1197 the IP address, check_host() was doing a simple string comparison with
1198 addresses acquired from the DNS when checking that the found name did
1199 have the original IP as one of its addresses. Since any found IPv6
1200 addresses are likely to be in abbreviated form, the comparison could
1201 fail. Luckily, there already exists a function for doing the comparison
1202 by converting both addresses to binary, so now that is used instead of
1203 the text comparison.
1204
96776534
PH
1205PH/20 There was another similar case to PH/19, when a complete host name was
1206 given in a host list; looking up its IP address could give an abbreviated
1207 form, whereas the current host's name might or might not be abbreviated.
1208 The same fix has been applied.
1209
5de37277 1210
9a799bc0
PH
1211Exim version 4.54
1212-----------------
1213
1214PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1215 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1216 It now does.
1217
99a4b039
PH
1218PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1219 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1220
1221PH/03 Typo: missing ".o" in src/pcre/Makefile.
1222
4b233853
PH
1223PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1224 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1225 Also, for "Auto-Submitted", treat anything other than "no" as
1226 non-personal, in accordance with RFC 3834. (Previously it treated
1227 anything starting "auto-" as non-personal.)
1228
8857ccfd
PH
1229TF/01 The control=submission/name=... option had a problem with syntax
1230 errors if the name included a slash character. The /name= option
1231 now slurps the rest of the string, so it can include any characters
1232 but it must come last in the list of options (after /sender_retain
1233 or /domain=).
1234
433a2980
PH
1235PH/05 Some modifications to the interface to the fake nameserver for the new
1236 testing suite.
1237
3e46c1aa 1238
9a799bc0 1239
e3a311ba
TK
1240Exim version 4.53
1241-----------------
1242
1243TK/01 Added the "success_on_redirect" address verification option. See
1244 NewStuff for rationale and an example.
1245
13b685f9
PH
1246PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1247
395ff96d
PH
1248PH/02 Patch to exigrep to allow it to work on syslog lines.
1249
5b68f6e4
PH
1250PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1251 fread() to skip over the body file's header line, because in Cygwin the
1252 header line is locked and is inaccessible.
1253
1ab52c69
PH
1254PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1255 co-exist for some time) to make it clear that it is the Exim ID that is
1256 referenced, not the Message-ID: header line.
1257
b07e6aa3
PH
1258PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1259 string_format() function, because snprintf() does not exist on all
1260 operating systems.
1261
254e032f
PH
1262PH/06 The use of forbid_filter_existstest now also locks out the use of the
1263 ${stat: expansion item.
1264
3af76a81
PH
1265PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1266 protocol synchronization error", to keep the pedants happy.
1267
2548ba04
PH
1268PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1269 well as for IRIX systems, when gcc is being used. See the host.c source
1270 file for comments.
1271
b6c6011d
PH
1272PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1273
cf39cf57
PH
1274PH/10 Named domain lists were not working if used in a queue_smtp_domains
1275 setting.
1276
f1513293
PH
1277PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1278 transport and to the smtp transport in LMTP mode.
1279
727549a4
PH
1280TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1281
af46795e
PH
1282PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1283 run a filter in a subprocess. This could lead to confusion in subsequent
1284 lookups in the parent process. There should also be a search_tidyup() at
1285 the end of the subprocess.
1286
d7b47fd0
PH
1287PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1288 only if the host matched helo_try_verify_hosts, which caused the
1289 verification to occur when the EHLO/HELO command was issued. The ACL just
1290 tested the remembered result. Now, if a previous verification attempt has
1291 not happened, "verify = helo" does it there and then.
1292
ee744174
JJ
1293JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1294
b582ab87
PH
1295TK/03 Fix log output including CR from clamd.
1296
41a13e0a
PH
1297PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1298 exist provoked a memory error which could cause a segfault.
1299
f625cc5a
PH
1300PH/15 Installed PCRE 6.2
1301
1302PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1303
21f7af35
PH
1304PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1305 of the problem. Specifically, suggested +O2 rather than +O1 for the
1306 HP-UX compiler.
1307
31480e42
PH
1308PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1309
2d280592
PH
1310PH/20 If a delivery was routed to a non-standard port by means of an SRV
1311 record, the port was not correctly logged when the outgoing_port log
1312 selector was set (it logged the transort's default port).
1313
7cd1141b
PH
1314PH/21 Added support for host-specific ports to manualroute, queryprogram,
1315 fallback_hosts, and "hosts" in the smtp transport.
1316
1317PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1318 host errors such as "Connection refused".
1319
750af86e
PH
1320PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1321 authentication with radiusclient 0.4.9:
1322
1323 - Error returned from rc_read_config was caught wrongly
1324 - Username/password not passed on to radius server due to wrong length.
1325
1326 The presumption is that some radiusclient API changes for 4.51/PH/17
1327 were not taken care of correctly. The code is still untested by me (my
1328 Linux distribution still has 0.3.2 of radiusclient), but it was
1329 contributed by a Radius user.
1330
1331PH/24 When doing a callout, the value of $domain wasn't set correctly when
1332 expanding the "port" option of the smtp transport.
1333
4304270b
TK
1334TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1335 while reading a MIME header. Thanks to Tom Hughes for a patch.
1336
750af86e
PH
1337PH/24 Include config.h inside local_scan.h so that configuration settings are
1338 available.
1339
64ffc24f
PH
1340PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1341 that in an ACL for RCPT (for example), you can examine exactly what was
1342 received.
1343
5dd9625b
PH
1344PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1345 commands, but it was not correctly comparing the address with the actual
1346 client host address. Thus, it would show the EHLO address in Received:
1347 header lines when this was not necessary.
1348
5591031b
PH
1349PH/27 Added the % operator to ${eval:}.
1350
ba18e66a
PH
1351PH/28 Exim tries to create and chdir to its spool directory when it starts;
1352 it should be ignoring failures (because with -C, for example, it has lost
1353 privilege). It wasn't ignoring creation failures other than "already
1354 exists".
1355
9cec981f
PH
1356PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1357 -bV or -d is used.
1358
aa2b5c79
PH
1359PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1360 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1361 too many continuations, the temporary file was not being removed, and the
1362 return code was incorrect.
aa2b5c79 1363
48a53b7f
PH
1364PH/31 Missing "BOOL" in function definition in filtertest.c.
1365
1c59d63b
PH
1366PH/32 Applied Sieve patches from the maintainer.
1367
671012da
TK
1368TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1369
1509d3a8
PH
1370PH/33 Added "verify = not_blind".
1371
1372PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1373 Local/Makefile (with some defaults set). These are used in built scripts
1374 such as exicyclog, but they have never been used in the exim_install
1375 script (though there are many overriding facilities there). I have
1376 arranged that the exim_install script now takes note of these two
1377 settings.
1378
1379PH/35 Installed configuration files for Dragonfly.
1380
2fe1a124
PH
1381PH/36 When a locally submitted message by a trusted user did not contain a
1382 From: header, and the sender address was obtained from -f or from an SMTP
1383 MAIL command, and the trusted user did not use -F to supply a sender
1384 name, $originator_name was incorrectly used when constructing a From:
1385 header. Furthermore, $originator_name was used for submission mode
1386 messages from external hosts without From: headers in a similar way,
1387 which is clearly wrong.
1388
8800895a
PH
1389PH/37 Added control=suppress_local_fixups.
1390
ccfdb010
PH
1391PH/38 When log_selector = +received_sender was set, and the addition of the
1392 sender made the log line's construction buffer exactly full, or one byte
1393 less than full, an overflow happened when the terminating "\n" was
1394 subsequently added.
1395
1130bfb0
PH
1396PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1397 when the result of a list match is failure because a DNS lookup failed.
1398
ebcb507f
PH
1399PH/40 RM_COMMAND is now used in the building process.
1400
c35e155c
PH
1401PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1402 the "build-* directories that it finds.
1403
95d1f782
PH
1404PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1405 address in a domain literal was a prefix of an interface address.
1406
fd6de02e
PH
1407PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1408 when verifying a sender address, unless rewrite_headers is false.
1409
58de37c5
PH
1410PH/44 Wrote a long comment about why errors_to addresses are verified as
1411 recipients, not senders.
1412
261cf466
TF
1413TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1414 the ratelimit ACL was added.
1415
3ee512ff
PH
1416PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1417
e08c430f
PH
1418PH/46 Added extra information about PostgreSQL errors to the error string.
1419
bef5a11f
PH
1420PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1421 avoiding the need to install special zones in a real server. This is
1422 backwards compatible; if it can't find the fake resolver, it drops back.
1423 Thus, both old and new test suites can be run.
1424
7546de58
TF
1425TF/02 Added util/ratelimit.pl
1426
e5d5a95f
TF
1427TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1428 clock is set back in time.
1429
2e88a017
TF
1430TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1431 Candler <B.Candler@pobox.com>.
1432
a5f65aa4
TF
1433TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1434 OK for addresses that are the result of redirections.
1435
e7726cbf
PH
1436PH/48 A number of further additions for the benefit of the new test suite,
1437 including a fake gethostbyname() that interfaces to the fake DNS resolver
1438 (see PH/47 above).
1439
a7fdad5b
TF
1440TF/06 The fix for widen_domains has also been applied to qualify_single and
1441 search_parents which are the other dnslookup options that can cause
1442 header rewrites.
1443
6af56900
PH
1444PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1445 type ("H").
1446
0925ede6
PH
1447PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1448
66afa403
TF
1449TF/07 Exim produced the error message "an SRV record indicated no SMTP
1450 service" if it encountered an MX record with an empty target hostname.
1451 The message is now "an MX or SRV record indicated no SMTP service".
1452
0154e85a
TF
1453TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1454 if the DNS of the sending site is misconfigured. This is quite a
1455 common situation. This change restores the behaviour of treating a
1456 helo verification defer as a failure.
1457
16f12c76
PH
1458PH/51 If self=fail was set on a router, the bounce message did not include the
1459 actual error message.
1460
bbe902f0 1461
e5a9dba6
PH
1462Exim version 4.52
1463-----------------
1464
1465TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1466
22c3b60b
PH
1467PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1468 command itself ended in error, the underlying message about the transport
1469 filter timeout was being overwritten with the pipe command error. Now the
1470 underlying error message should be appended to the second error message.
1471
06a9b4b5
PH
1472TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1473
c1ac6996
PH
1474PH/02 Reduce the amount of output that "make" produces by default. Full output
1475 can still be requested.
1476
9c7a242c
PH
1477PH/03 The warning log line about a condition test deferring for a "warn" verb
1478 was being output only once per connection, rather than after each
1479 occurrence (because it was using the same function as for successful
1480 "warn" verbs). This seems wrong, so I have changed it.
1481
87ba3f5f
PH
1482TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1483 it should not have, which might have caused a crash in the right
1484 circumstances, but probably never did.
1485
1486PH/04 Installed a modified version of Tony Finch's patch to make submission
1487 mode fix the return path as well as the Sender: header line, and to
1488 add a /name= option so that you can make the user's friendly name appear
1489 in the header line.
1490
29aba418
TF
1491TF/03 Added the control = fakedefer ACL modifier.
1492
fe0dab11
TF
1493TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1494 Mark Lowes for thorough testing.
870f6ba8 1495
11d337a4
TK
1496TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1497
1498TK/03 Merged latest SRS patch from Miles Wilton.
1499
415c8f3b
PH
1500PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1501 with the definition in sysexits.h (which is #included earlier).
1502 Fortunately, Exim does not actually use EX_OK. The code used to try to
1503 preserve the sysexits.h value, by assumimg that macro definitions were
1504 scanned for macro replacements. I have been disabused of this notion,
1505 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1506
958541e9
PH
1507PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1508 in the smtp transport. When a block could not be written in a single
1509 write() function, the timeout was being re-applied to each part-write.
1510 This seems wrong - if the receiver was accepting one byte at a time it
1511 would take for ever. The timeout is now adjusted when this happens. It
1512 doesn't have to be particularly precise.
1513
c206415f
TK
1514TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1515 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1516
2a4be8f9
PH
1517PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1518 without a domain if the check to <postmaster@domain> fails.
1519
1cba11c5
SC
1520SC/01 Eximstats: added -xls and the ability to specify output files
1521 (patch written by Frank Heydlauf).
1522
1523SC/02 Eximstats: use FileHandles for outputing results.
1524
1525SC/03 Eximstats: allow any combination of xls, txt, and html output.
1526
1527SC/04 Eximstats: fixed display of large numbers with -nvr option
1528
1529SC/05 Eximstats: fixed merging of reports with empty tables.
1530
1531SC/06 Eximstats: added the -include_original_destination flag
1532
1533SC/07 Eximstats: removed tabs and trailing whitespace.
1534
1005d00e
TK
1535TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1536
1537TK/06 MBOX spool code: Add real "From " MBOX separator line
1538 so the .eml file is really in mbox format (even though
1539 most programs do not really care). Patch from Alex Miller.
1540
1541TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1542 The latter is generated from $received_to and is only set if the
1543 message has one envelope recipient. SA can use these headers,
1544 obviously out-of-the-box. Patch from Alex Miller.
1545
9b4768fa
PH
1546PH/08 The ${def test on a variable was returning false if the variable's
1547 value was "0", contrary to what the specification has always said!
1548 The result should be true unless the variable is empty.
1549
1550PH/09 The syntax error of a character other than { following "${if
1551 def:variable_name" (after optional whitespace) was not being diagnosed.
1552 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1553 accidental colon was present, for example, could give incorrect results.
1554
0d7eb84a
PH
1555PH/10 Tidied the code in a number of places where the st_size field of a stat()
1556 result is used (not including appendfile, where other changes are about
1557 to be made).
1558
1559PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1560 This involved changing a lot of size variables from int to off_t. It
1561 should work with maildirs and everything.
1562
40727bee
TK
1563TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1564 spamd dying while we are connected to it.
1565
554d2369
TF
1566TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1567 <jgh@wizmail.org>
1568
1f922db1
PH
1569PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1570 function for BDB 4.3.
1571
ef213c3b
PH
1572PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1573
8ac170f3
PH
1574PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1575 the sources for PCRE have been re-arranged and more files are now
1576 involved.
1577
b1c749bb
PH
1578PH/15 The code I had for printing potentially long long variables in PH/11
1579 above was not the best (it lost precision). The length of off_t variables
1580 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1581 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1582 to be "long long int" or "long int". This is needed for the internal
1583 formatting function string_vformat().
b1c749bb 1584
4aac9b49
PH
1585PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1586 the configuration file to be ":syslog", then the script "guesses" where
1587 the logs files are, rather than using the compiled in default. In our
1588 case the guess is not the same as the compiled default, so the script
1589 suddenly stopped working when I started to use syslog. The patch checks
1590 to see if log_file_path is "". If so, it attempts to read it from exim
1591 with no configuration file to get the compiled in version, before it
1592 falls back to the previous guessing code."
1593
294520c8
TK
1594TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1595 implementing BATV in an Exim configuration. See NewStuff for the gory
1596 details.
1597
5bd022fe
PH
1598PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1599 Makefile that are specific to HP-UX.
1600
90e9ce59
PH
1601PH/18 If the "use_postmaster" option was set for a recipient callout together
1602 with the "random" option, the postmaster address was used as the MAIL
1603 FROM address for the random test, but not for the subsequent recipient
1604 test. It is now used for both.
1605
5ea81592
PH
1606PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1607 patch removes a few documentation additions to RFC 3028, because the
1608 latest draft now contains them. It adds the new en;ascii-case comparator
1609 and a new error check for 8bit text in MIME parts. Comparator and
1610 require names are now matched exactly. I enabled the subaddress
1611 extension, but it is not well tested yet (read: it works for me)."
1612
c6c2dc1d
PH
1613PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1614 rework some of the code of TK/09 above to avoid the hardwired use of
1615 "%lld" and "long long". Replaced the call to snprintf() with a call to
1616 string_vformat().
1617
fffffe4c
PH
1618PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1619 records point to non-existent hosts", "retry timeout exceeded", and
1620 "retry time not reached for any host after a long failure period".
ca02eafb 1621
9a26b6b2
PH
1622PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1623 experimental DomainKeys support:
1624
1625 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1626 (2) On an error such as an illegally used "control", the wrong name for
1627 the control was given.
1628
1629 These problems did NOT occur unless DomainKeys support was compiled.
1630
4aee0225
PH
1631PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1632
32d668a5
PH
1633PH/24 Added ${if match_ip condition.
1634
8187c3f3
PH
1635PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1636 databases so that it will be absolutely obvious if a crash occurs in the
1637 DB library. This is a regular occurrence (often caused by mis-matched
1638 db.h files).
1639
ff790e47 1640PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1641 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1642 picked up on a user's system that detects such things. There doesn't seem
1643 to be a gcc warning option for this - only an attribute that has to be
1644 put on the function's prototype. It seems that in Fedora Core 4 they have
1645 set this on a number of new functions. No doubt there will be more in due
1646 course.
ff790e47 1647
5417f6d1
PH
1648PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1649 specify a transport. However, if an address that was verified by such a
1650 router was the subject of a callout, Exim crashed because it tried to
1651 read the rcpt_include_affixes from the non-existent transport. Now it
1652 just assumes that the setting of that option is false. This bug was
1653 introduced by 4.51/PH/31.
1654
59cf8544
PH
1655PH/28 Changed -d+all to exclude +memory, because that information is very
1656 rarely of interest, but it makes the output a lot bigger. People tend to
1657 do -d+all out of habit.
1658
e7ad8a65
PH
1659PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1660 code in os-type was giving problems when libc.so lives in lib64, like on
1661 x86_64 Fedora Core.
1662
ade42478
PH
1663PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1664 aren't the modern standard, and it seems that some systems' include files
1665 don't always have them. Exim was already checking for some of the newer
1666 ones like T_AAAA, and defining it itself. I've added checks for all the
1667 record types that Exim uses.
1668
182ad5cf
PH
1669PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1670 not automatically generating a new one, as it is supposed to. This
1671 prevented TLS from working. If the file did exist, but contained invalid
1672 data, a new version was generated, as expected. It was only the case of a
1673 non-existent file that was broken.
1674
b0d9fc80
TK
1675TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1676 with a change in libdomainkeys > 0.64.
1677
1678TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1679 from DNS. If the selector record carries the flag, it now has
1680 precedence over the domain-wide flag.
1681
1682TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1683
47c7a64a
PH
1684PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1685 the use of a port name that isn't defined in /etc/services) occurred, the
1686 message was deferred as in a normal delivery, and thus remained on the
1687 spool, instead of being failed because of the mua_wrapper setting. This
1688 is now fixed, and I tidied up some of the mua_wrapper messages at the
1689 same time.
1690
a388bce4
SC
1691SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1692 the messages in a hash of arrays rather than using individual hashes.
1693 This is a bit cleaner and results in dramatic memory savings, albeit
1694 at a slight CPU cost.
1695
1696SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1697 as requested by Marc Sherman.
1698
1699SC/10 Eximstats: added histograms for user specified patterns as requested
1700 by Marc Sherman.
1701
0793e4ed
SC
1702SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1703
c58b88df
PH
1704PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1705 fopen() in the content-scanning modules that did not already have it.
1706
e7ad8a65 1707
7982096b
PH
1708Exim version 4.51
1709-----------------
1710
1a46a8c5
PH
1711TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1712 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1713
2f079f46 1714TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1715
1716TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1717
1718PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1719 to test Sieve filters that use "vacation".
1720
1721PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1722 that changes the way the GnuTLS parameters are stored in the cache file.
1723 The new format can be generated externally. For backward compatibility,
1724 if the data in the cache doesn't make sense, Exim assumes it has read an
1725 old-format file, and it generates new data and writes a new file. This
1726 means that you can't go back to an older release without removing the
1727 file.
1728
1729PH/03 A redirect router that has both "unseen" and "one_time" set does not
1730 work if there are any delivery delays because "one_time" forces the
1731 parent to be marked "delivered", so its unseen clone is never tried
1732 again. For this reason, Exim now forbids the simultaneous setting of
1733 these two options.
1734
1735PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1736 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1737 entry if you want to know the details. The fix, however, neglected to
1738 consider the case when local delivery batching is involved. The test for
1739 "previously delivered" was not happening when checking to see if an
1740 address could be batched with a previous (undelivered) one; under
1741 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1742 address.
1a46a8c5
PH
1743
1744PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1745 in its include files, and this causes problems building Exim.
1746
1747PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1748 header_syntax) but Exim was just ignoring anything given after a slash.
1749 In particular, this caused confusion with an attempt to use "verify =
1750 reverse_host_lookup/defer_ok". An error is now given when options are
1751 supplied for verify items that do not have them. (Maybe reverse_host_
1752 lookup should have a defer_ok option, but that's a different point.)
1753
1754PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1755 defined by RFC 821) to 2048, because there were problems with some AUTH
1756 commands, and RFC 1869 says the size should be increased for extended
1757 SMTP commands that take arguments.
1758
1759PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1760 Finch).
1761
1762PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1763 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1764
49c2d5ea
PH
1765PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1766 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1767 whatever). Otherwise the password may appear in the log. Following change
1768 PH/42 below, there is no longer a chance of it appearing in a bounce
1769 message.
49c2d5ea 1770
bf759a8b
PH
1771PH/11 Installed exipick version 20050225.0 from John Jetmore.
1772
83364d30
PH
1773PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1774 of its addresses was ever tried. (Bugzilla bug #2.)
1775
7999bbd7
PH
1776PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1777 the result incorrectly in the debug output. (It correctly added a newline
1778 to what was transported.)
1779
7dbf77c9
PH
1780TF/01 Added $received_time.
1781
74e0617f
PH
1782PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1783 commented out examples of how to interface to a virus scanner and to
1784 SpamAssassin. Also added commented examples of av_scanner and
1785 spamd_address settings.
1786
2f079f46
PH
1787PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1788 and controls are allowed in which ACLs. There were a couple of minor
1789 errors. Some of the entries in the conditions table (which is a table of
1790 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1791 negation of where the condition IS allowed.
1792
8c841523
PH
1793PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
1794
7766a4f0
PH
1795PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
1796 header file does not have a version number, so I've had to invent a new
1797 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
1798 API. The code is untested by me (my Linux distribution still has 0.3.2 of
1799 radiusclient), but it was contributed by a Radius user.
1800
8b417f2c
PH
1801PH/18 Installed Lars Mainka's patch for the support of CRL collections in
1802 files or directories, for OpenSSL.
1803
901f42cb
PH
1804PH/19 When an Exim process that is running as root has to create an Exim log
1805 file, it does so in a subprocess that runs as exim:exim so as to get the
1806 ownership right at creation (otherwise, other Exim processes might see
1807 the file with the wrong ownership). There was no test for failure of this
1808 fork() call, which would lead to the process getting stuck as it waited
1809 for a non-existent subprocess. Forks do occasionally fail when resources
1810 run out. I reviewed all the other calls to fork(); they all seem to check
1811 for failure.
1812
f9b9210e
PH
1813PH/20 When checking for unexpected SMTP input at connect time (before writing
1814 the banner), Exim was not dealing correctly with a non-positive return
1815 from the read() function. If the client had disconnected by this time,
1816 the result was a log entry for a synchronization error with an empty
1817 string after "input=" when read() returned zero. If read() returned -1
1818 (an event I could not check), uninitialized data bytes were printed.
1819 There were reports of junk text (parts of files, etc) appearing after
1820 "input=".
1821
54cdb463
PH
1822PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
1823
cf00dad6
PH
1824PH/22 Added support for macro redefinition, and (re)definition in between
1825 driver and ACL definitions.
1826
acb1b346
PH
1827PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
1828 forgetting to use the resulting value; it was using the unexpanded value.
1829
c5ddb310
PH
1830PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
1831 hadn't been configured. The fix is from Juergen Kreileder, who
1832 understands it better than I do:
1833
1834 "Here's what I see happening with three configured cyrus_sasl
1835 authenticators configured (plain, login, cram-md5):
1836
1837 On startup auth_cyrus_sasl_init() gets called for each of these.
1838 This means three calls to sasl_listmech() without a specified mech_list.
1839 => SASL tests which mechs of all available mechs actually work
1840 => three warnings about OTP not working
1841 => the returned list contains: plain, login, cram-md5, digest-md5, ...
1842
1843 With the patch, sasl_listmech() also gets called three times. But now
1844 SASL's mech_list option is set to the server_mech specified in the the
1845 authenticator. Or in other words, the answer from sasl_listmech()
1846 gets limited to just the mech you're testing for (which is different
1847 for each call.)
1848 => the return list contains just 'plain' or 'login', 'cram-md5' or
1849 nothing depending on the value of ob->server_mech.
1850
1851 I've just tested the patch: Authentication still works fine,
1852 unavailable mechs specified in the exim configuration are still
1853 caught, and the auth.log warnings about OTP are gone."
1854
31619da6
PH
1855PH/25 When debugging is enabled, the contents of the command line are added
1856 to the debugging output, even when log_selector=+arguments is not
1857 specified.
1858
bebaf0fc
PH
1859PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
1860 answer is "GNU", and only if the return is "GNU/something" is the answer
1861 "Linux".
1862
475fe28a
PH
1863PH/27 $acl_verify_message is now set immediately after the failure of a
1864 verification in an ACL, and so is available in subsequent modifiers. In
1865 particular, the message can be preserved by coding like this:
1866
1867 warn !verify = sender
1868 set acl_m0 = $acl_verify_message
1869
1870 Previously, $acl_verify_message was set only while expanding "message"
1871 and "log_message" when a very denied access.
1872
7e8bec7a
PH
1873PH/28 Modified OS/os.c-Linux with
1874
1875 -#ifndef OS_LOAD_AVERAGE
1876 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
1877
1878 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
1879 nomenclature these days.)
1880
e4a89c47
PH
1881PH/29 Installed patch from the Sieve maintainer that adds the options
1882 sieve_useraddress and sieve_subaddress to the redirect router.
1883
5ca2a9a1
PH
1884PH/30 In these circumstances:
1885 . Two addresses routed to the same list of hosts;
1886 . First host does not offer TLS;
1887 . First host accepts first address;
1888 . First host gives temporary error to second address;
1889 . Second host offers TLS and a TLS session is established;
1890 . Second host accepts second address.
1891 Exim incorrectly logged both deliveries with the TLS parameters (cipher
1892 and peerdn, if requested) that were in fact used only for the second
1893 address.
7e8bec7a 1894
c688b954
PH
1895PH/31 When doing a callout as part of verifying an address, Exim was not paying
1896 attention to any local part prefix or suffix that was matched by the
1897 router that accepted the address. It now behaves in the same way as it
1898 does for delivery: the affixes are removed from the local part unless
1899 rcpt_include_affixes is set on the transport.
1900
fed77020
PH
1901PH/32 Add the sender address, as F=<...>, to the log line when logging a
1902 timeout during the DATA phase of an incoming message.
1903
7fe1560f
PH
1904PH/33 Sieve envelope tests were broken for match types other than :is. I have
1905 applied a patch sanctioned by the Sieve maintainer.
c688b954 1906
ebb6e6d5
PH
1907PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
1908 the uid or gid is negative. A case of a negative gid caused this to be
1909 noticed. The fix allows for either to be negative.
1910
9c4e8f60
PH
1911PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
1912 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
1913 overlooked.
1914
1915PH/36 The change PH/12 above was broken. Fixed it.
1916
d7174846
PH
1917PH/37 Exim used to check for duplicate addresses in the middle of routing, on
1918 the grounds that routing the same address twice would always produce the
1919 same answer. This might have been true once, but it is certainly no
1920 longer true now. Routing a child address may depend on the previous
1921 routing that produced that child. Some complicated redirection strategies
1922 went wrong when messages had multiple recipients, and made Exim's
1923 behaviour dependent on the order in which the addresses were given.
1924
1925 I have moved the duplicate checking until after the routing is complete.
1926 Exim scans the addresses that are assigned to local and remote
1927 transports, and removes any duplicates. This means that more work will be
1928 done, as duplicates will always all be routed, but duplicates are
1929 presumably rare, so I don't expect this is of any significance.
1930
1931 For deliveries to pipes, files, and autoreplies, the duplicate checking
1932 still happens during the routing process, since they are not going to be
1933 routed further.
1934
cfe75fc3
PH
1935PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
1936 It corrects a timeout issue with spamd. This is Ian's comment: "The
1937 background is that sometimes spamd either never reads data from a
1938 connection it has accepted, or it never writes response data. The exiscan
1939 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
1940 blindly assumes that writes won't block so it may never time out."
1941
be22d70e
PH
1942PH/39 Allow G after quota size as well as K and M.
1943
0612b098
PH
1944PH/40 The value set for $authenticated_id in an authenticator may not contain
1945 binary zeroes or newlines because the value is written to log lines and
1946 to spool files. There was no check on this. Now the value is run through
1947 the string_printing() function so that such characters are converted to
1948 printable escape sequences.
1949
2e0c1448
PH
1950PH/41 $message_linecount is a new variable that contains the total number of
1951 lines in the message. Compare $body_linecount, which is the count for the
1952 body only.
1953
447d236c
PH
1954PH/42 Exim no longer gives details of delivery errors for specific addresses in
1955 bounce and delay warning messages, except in certain special cases, which
1956 are as follows:
1957
1958 (a) An SMTP error message from a remote host;
1959 (b) A message specified in a :fail: redirection;
1960 (c) A message specified in a "fail" command in a system filter;
1961 (d) A message specified in a FAIL return from the queryprogram router;
1962 (e) A message specified by the cannot_route_message router option.
1963
1964 In these cases only, Exim does include the error details in bounce and
1965 warning messages. There are also a few cases where bland messages such
1966 as "unrouteable address" or "local delivery error" are given.
1967
d20976dc
PH
1968PH/43 $value is now also set for the "else" part of a ${run expansion.
1969
f656d135
PH
1970PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
1971 being worked on, but at least Exim now implements the latest version to
1972 play with."
1973
2e2a30b4
PH
1974PH/45 In a pipe transport, although a timeout while waiting for the pipe
1975 process to complete was treated as a delivery failure, a timeout while
1976 writing the message to the pipe was logged, but erroneously treated as a
1977 successful delivery. Such timeouts include transport filter timeouts. For
1978 consistency with the overall process timeout, these timeouts are now
1979 treated as errors, giving rise to delivery failures by default. However,
1980 there is now a new Boolean option for the pipe transport called
1981 timeout_defer, which, if set TRUE, converts the failures into defers for
1982 both kinds of timeout. A transport filter timeout is now identified in
1983 the log output.
1984
9176e9f0
PH
1985PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
1986 systems where "make" and "gmake" are different, calling "gmake" at top
1987 level broke things. I've arranged for the value of $(MAKE) to be passed
1988 from the Makefile to this script so that it can call the same version of
1989 "make".
1990
7982096b 1991
bbe902f0
PH
1992A note about Exim versions 4.44 and 4.50
1993----------------------------------------
1994
1995Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
1996changes of various kinds. As a consequence, a big documentation update was
1997needed. This delayed the release for rather longer than seemed good, especially
1998in the light of a couple of (minor) security issues. Therefore, the changes
1999that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2000release. So 4.44 and 4.50 are in effect two different branches that both start
2001from 4.43.
2002
2003I have left the 4.50 change log unchanged; it contains all the changes since
20044.43. The change log for 4.44 is below; many of its items are identical to
2005those for 4.50. This seems to be the most sensible way to preserve the
2006historical information.
2007
2008
f7b63901 2009Exim version 4.50
495ae4b0
PH
2010-----------------
2011
5fe762f6
PH
2012 1. Minor wording change to the doc/README.SIEVE file.
2013
139059f6 2014 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2015 computation of the current number of files was incorrect.
495ae4b0 2016
7086e875
PH
2017 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2018 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2019 place.
2020
35af9f61
PH
2021 4. Give more explanation in the error message when the command for a transport
2022 filter fails to execute.
2023
b668c215
PH
2024 5. There are several places where Exim runs a non-Exim command in a
2025 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2026 was being done only for the command run by the queryprogram router. It is
2027 now done for all such subprocesses. The other cases are: ${run, transport
2028 filters, and the commands run by the lmtp and pipe transports.
2029
a494b1e1
PH
2030 6. Added CONFIGURE_GROUP build-time option.
2031
2032 7. Some older OS have a limit of 256 on the maximum number of file
2033 descriptors. Exim was using setrlimit() to set 1000 as a large value
2034 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2035 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2036
c5fcb476
PH
2037 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2038 was an oversight, and furthermore, ever since the addition of extra
2039 controls (e.g. 4.43/32), the checks on when to allow different forms of
2040 "control" were broken. There should now be diagnostics for all cases when a
2041 control that does not make sense is encountered.
2042
69358f02
PH
2043 9. Added the /retain_sender option to "control=submission".
2044
5be20824
PH
204510. $recipients is now available in the predata ACL (oversight).
2046
eb2c0248
PH
204711. Tidy the search cache before the fork to do a delivery from a message
2048 received from the command line. Otherwise the child will trigger a lookup
2049 failure and thereby defer the delivery if it tries to use (for example) a
2050 cached ldap connection that the parent has called unbind on.
2051
2a3eea10
PH
205212. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2053 of $address_data from the recipient verification was clobbered by the
2054 sender verification.
2055
205613. The value of address_data from a sender verification is now available in
2057 $sender_address_data in subsequent conditions in the ACL statement.
2058
23c7ff99
PH
205914. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2060
4deaf07d
PH
206115. Added a new option "connect=<time>" to callout options, to set a different
2062 connection timeout.
2063
926e1192
PH
206416. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2065 was its contents. (It was OK if the option was not defined at all.)
2066
650edc6f
PH
206717. A "Completed" log line is now written for messages that are removed from
2068 the spool by the -Mrm option.
2069
2c7db3f5
PH
207018. New variables $sender_verify_failure and $recipient_verify_failure contain
2071 information about exactly what failed.
2072
3d235903
PH
207319. Added -dd to debug only the daemon process.
2074
7c7ad977
PH
207520. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2076 handles timeouts, both on the server side and network timeouts. Renamed the
2077 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2078
981756db
PH
207921. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2080 It is now set to "smtps".
2081
d4eb88df
PH
208222. $host_address is now set to the target address during the checking of
2083 ignore_target_hosts.
2084
208523. When checking ignore_target_hosts for an ipliteral router, no host name was
2086 being passed; this would have caused $sender_host_name to have been used if
2087 matching the list had actually called for a host name (not very likely,
2088 since this list is usually IP addresses). A host name is now passed as
2089 "[x.x.x.x]".
2090
7d468ab8
PH
209124. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2092 code that specifies a non-restarting handler (typically sigaction() in
2093 modern systems) in an attempt to fix a rare and obscure crash bug.
2094
209525. Narrowed the window for a race in the daemon that could cause it to ignore
2096 SIGCHLD signals. This is not a major problem, because they are used only to
2097 wake it up if nothing else does.
2098
62c0818f
PH
209926. A malformed maildirsize file could cause Exim to calculate negative values
2100 for the mailbox size or file count. Odd effects could occur as a result.
2101 The maildirsize information is now recalculated if the size or filecount
2102 end up negative.
2103
26034054
PH
210427. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2105 support for a long time. Removed HAVE_SYS_VFS_H.
2106
af66f652
PH
210728. Installed the latest version of exipick from John Jetmore.
2108
90af77f4
PH
210929. In an address list, if the pattern was not a regular expression, an empty
2110 subject address (from a bounce message) matched only if the pattern was an
2111 empty string. Non-empty patterns were not even tested. This was the wrong
2112 because it is perfectly reasonable to use an empty address as part of a
2113 database query. An empty address is now tested by patterns that are
2114 lookups. However, all the other forms of pattern expect the subject to
2115 contain a local part and a domain, and therefore, for them, an empty
2116 address still always fails if the pattern is not itself empty.
2117
d8ef3577
PH
211830. Exim went into a mad DNS loop when attempting to do a callout where the
2119 host was specified on an smtp transport, and looking it up yielded more
2120 than one IP address.
2121
5cb8cbc6
PH
212231. Re-factored the code for checking spool and log partition space into a
2123 function that finds that data and another that does the check. The former
2124 is then used to implement four new variables: $spool_space, $log_space,
2125 $spool_inodes, and $log_inodes.
2126
14702f5b
PH
212732. The RFC2047 encoding function was originally intended for short strings
2128 such as real names; it was not keeping to the 75-character limit for
2129 encoded words that the RFC imposes. It now respects the limit, and
2130 generates multiple encoded words if necessary. To be on the safe side, I
2131 have increased the buffer size for the ${rfc2047: expansion operator from
2132 1024 to 2048 bytes.
2133
063b1e99
PH
213433. It is now permitted to omit both strings after an "if" condition; if the
2135 condition is true, the result is "true". As before, when the second string
2136 is omitted, a false condition yields an empty string. This makes it less
2137 cumbersome to write custom ACL and router conditions.
2138
652e1b65
PH
213934. Failure to deliver a bounce message always caused it to be frozen, even if
2140 there was an errors_to setting on the router. The errors_to setting is now
2141 respected.
2142
6f0c9a4f
PH
214335. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2144 canonical form (fully expanded) before being placed in
2145 $sender_host_address.
2146
33397d19
PH
214736. The table in the code that translates DNS record types into text (T_A to
2148 "A" for instance) was missing entries for NS and CNAME. It is just possible
2149 that this could have caused confusion if both these types were looked up
2150 for the same domain, because the text type is used as part of Exim's
2151 per-process caching. But the chance of anyone hitting this buglet seems
2152 very small.
2153
7bb56e1f
PH
215437. The dnsdb lookup has been extended in a number of ways.
2155
2156 (1) There is a new type, "zns", which walks up the domain tree until it
2157 finds some nameserver records. It should be used with care.
2158
ea3bc19b
PH
2159 (2) There is a new type, "mxh", which is like "mx" except that it returns
2160 just the host names, not the priorities.
2161
2162 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2163 looked up. The behaviour when one of the lookups defers can be
2164 controlled by a keyword.
7bb56e1f 2165
ea3bc19b 2166 (4) It is now possible to specify the separator character for use when
7bb56e1f 2167 multiple records are returned.
33397d19 2168
0bcb2a0e
PH
216938. The dnslists ACL condition has been extended: it is now possible to supply
2170 a list of IP addresses and/or domains to be looked up in a particular DNS
2171 domain.
2172
2ac0e484
PH
217339. Added log_selector=+queue_time_overall.
2174
4e1fde53
PH
217540. When running the queue in the test harness, wait just a tad after forking a
2176 delivery process, to get repeatability of debugging output.
2177
de365ded
PH
217841. Include certificate and key file names in error message when GnuTLS fails
2179 to set them up, because the GnuTLS error message doesn't include the name
2180 of the failing file when there is a problem reading it.
2181
f05da2e8
PH
218242. Allow both -bf and -bF in the same test run.
2183
d6453af2
PH
218443. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2185
f7b63901
PH
218644. The "Exiscan patch" is now merged into the mainline Exim source.
2187
218845. Sometimes the final signoff response after QUIT could fail to get
2189 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2190 < 0 before doing a fflush(). This bug looks as though it goes back to the
2191 introduction of TLS in release 3.20, but "sometimes" must have been rare
2192 because the tests only now provoked it.
2193
a444213a
PH
219446. Reset the locale to "C" after calling embedded Perl, in case it was changed
2195 (this can affect the format of dates).
2196
0ec020ea
PH
219747. exim_tidydb, when checking for the continued existence of a message for
2198 which it has found a message-specific retry record, was not finding
2199 messages that were in split spool directories. Consequently, it was
2200 deleting retry records that should have stayed in existence.
2201
b1206957
PH
220248. Steve fixed some bugs in eximstats.
2203
220449. The SPA authentication driver was not abandoning authentication and moving
2205 on to the next authenticator when an expansion was forced to fail,
2206 contradicting the general specification for all authenticators. Instead it
2207 was generating a temporary error. It now behaves as specified.
2208
26dd5a95
PH
220950. The default ordering of permitted cipher suites for GnuTLS was pessimal
2210 (the order specifies the preference for clients). The order is now AES256,
2211 AES128, 3DES, ARCFOUR128.
2212
343b2385
PH
221351. Small patch to Sieve code - explicitly set From: when generating an
2214 autoreply.
2215
1c5466b9
PH
221652. Exim crashed if a remote delivery caused a very long error message to be
2217 recorded - for instance if somebody sent an entire SpamAssassin report back
2218 as a large number of 550 error lines. This bug was coincidentally fixed by
2219 increasing the size of one of Exim's internal buffers (big_buffer) that
2220 happened as part of the Exiscan merge. However, to be on the safe side, I
2221 have made the code more robust (and fixed the comments that describe what
2222 is going on).
2223
55ee9ee3
PH
222453. Now that there can be additional text after "Completed" in log lines (if
2225 the queue_time_overall log selector is set), a one-byte patch to exigrep
2226 was needed to allow it to recognize "Completed" as not the last thing in
2227 the line.
2228
d38f8232
PH
222954. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2230 patch that reportedly fixes this has been added. I am not expert enough to
2231 create a test for it. This is what the patch creator wrote:
2232
2233 "I found a little strange behaviour of ldap code when working with
2234 Windows 2003 AD Domain, where users was placed in more than one
2235 Organization Units. When I tried to give exim partial DN, the exit code
2236 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2237 But simultaneously result of request was absolutely normal ldap result,
2238 so I produce this patch..."
2239
3295e65b
PH
2240 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2241 REFERENCE, so I have modified the code to exclude the patch when that macro
2242 is not defined.
2243
7102e136
PH
224455. Some experimental protocols are using DNS PTR records for new purposes. The
2245 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2246 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2247 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2248 CAN-2005-0021
7102e136 2249
3ca0ba97
PH
225056. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2251
c2bcbe20
PH
225257. Double the size of the debug message buffer (to 2048) so that more of very
2253 long debug lines gets shown.
2254
18ce445d
PH
225558. The exicyclog utility now does better if the number of log files to keep
2256 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2257
1f5b4c3d
PH
225859. Two changes related to the smtp_active_hostname option:
2259
2260 (1) $smtp_active_hostname is now available as a variable.
2261 (2) The default for smtp_banner uses $smtp_active_hostname instead
2262 of $primary_hostname.
2263
b975ba52
PH
226460. The host_aton() function is supposed to be passed a string that is known
2265 to be a valid IP address. However, in the case of IPv6 addresses, it was
2266 not checking this. This is a hostage to fortune. Exim now panics and dies
2267 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2268 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2269 components; fortuitously, this particular loophole had already been fixed
2270 by change 4.50/55 above.
2271
2272 If there are any other similar loopholes, the new check in host_aton()
2273 itself should stop them being exploited. The report I received stated that
2274 data on the command line could provoke the exploit when Exim was running as
2275 exim, but did not say which command line option was involved. All I could
2276 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2277 running as the user.
ea3a6f44 2278 CAN-2005-0021
85b87bc2
PH
2279
228061. There was a buffer overflow vulnerability in the SPA authentication code
2281 (which came originally from the Samba project). I have added a test to the
2282 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2283 CAN-2005-0022
b975ba52 2284
17ffcae7
PH
228562. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2286 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2287
d95f9fdb
PH
228863. The daemon start-up calls getloadavg() while still root for those OS that
2289 need the first call to be done as root, but it missed one case: when
2290 deliver_queue_load_max is set with deliver_drop_privilege. This is
2291 necessary for the benefit of the queue runner, because there is no re-exec
2292 when deliver_drop_privilege is set.
2293
86b8287f
PH
229464. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2295 This has been fixed.
2296
60dc5e56
PH
229765. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2298 was in use, was not putting the data itself into the right store pool;
2299 consequently, it could be overwritten for a subsequent message in the same
2300 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2301 the caching.)
2302
533244af
PH
230366. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2304
a5a28604
PH
230567. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2306 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2307 the function were treating the return as a boolean value, which happened to
2308 work because 0=false and not-0=true, but is not correct code.
2309
7e634d24
PH
231068. The host_aton() function was not handling scoped IPv6 addresses (those
2311 with, for example, "%eth0" on the end) correctly.
2312
3e11c26b
PH
231369. Fixed some compiler warnings in acl.c for the bitmaps specified with
2314 negated items (that is, ~something) in unsigned ints. Some compilers
2315 apparently mutter when there is no cast.
2316
6729cf78
PH
231770. If an address verification called from an ACL failed, and did not produce a
2318 user-specific message (i.e. there was only a "system" message), nothing was
2319 put in $acl_verify_message. In this situation, it now puts the system
2320 message there.
2321
00f00ca5
PH
232271. Change 4.23/11 added synchronization checking at the start of an SMTP
2323 session; change 4.31/43 added the unwanted input to the log line - except
2324 that it did not do this in the start of session case. It now does.
2325
c9bdd01c
PH
232672. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2327 This is wrong and can cause the other end to generate a synchronization
2328 error if it is another Exim or anything else that does the synchronization
2329 check. A QUIT command is no longer sent after a timeout.
2330
d43194df
PH
233173. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2332 during host lookups.
2333
fe5b5d0b
PH
233474. The defer_ok option of callout verification was not working if it was used
2335 when verifying addresses in header lines, that is, for this case:
2336
2337 verify = header_sender/callout=defer_ok
2338
76a2d7ba
PH
233975. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2340 those file descriptors could be used for SMTP connections. If anything
2341 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2342 could be sent to the SMTP client, causing chaos. The daemon now opens
2343 stdin, stdout, and stderr to /dev/null when it puts itself into the
2344 background.
2345
234676. Arrange for output from Perl's "warn" command to be written to Exim's main
2347 log by default. The user can override this with suitable Perl magic.
2348
04f7d5b9
PH
234977. The use of log_message on a "discard" ACL verb, which is supposed to add to
2350 the log message when discard triggers, was not working for the DATA ACL or
2351 for the non-SMTP ACL.
2352
bc60667e
PH
235378. Error message wording change in sieve.c.
2354
bb6e88ff
PH
235579. If smtp_accept_max_per_host was set, the number of connections could be
2356 restricted to fewer than expected, because the daemon was trying to set up
2357 a new connection before checking whether the processes handling previous
2358 connections had finished. The check for completed processes is now done
2359 earlier. On busy systems, this bug wouldn't be noticed because something
2360 else would have woken the daemon, and it would have reaped the completed
2361 process earlier.
2362
1e70f85b
PH
236380. If a message was submitted locally by a user whose login name contained one
2364 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2365 It caused a spool format error. I have fixed the spool reading code. A
2366 related problem was that the "from" clause in the Received: line became
2367 illegal because of the space(s). It is now covered by ${quote_local_part.
2368
236981. Included the latest eximstats from Steve (adds average sizes to HTML Top
2370 tables).
2371
4e01f9d6
PH
237282. Updated OS/Makefile-AIX as per message from Mike Meredith.
2373
1ee1cef2
PH
237483. Patch from Sieve maintainer to fix unterminated string problem in
2375 "vacation" handling.
2376
6e2b4ccc
PH
237784. Some minor changes to the Linux configuration files to help with other
2378 OS variants using glibc.
2379
8e669ac1
PH
238085. One more patch for Sieve to update vacation handling to latest spec.
2381
495ae4b0 2382
bbe902f0
PH
2383----------------------------------------------------
2384See the note above about the 4.44 and 4.50 releases.
2385----------------------------------------------------
2386
2387
2388Exim version 4.44
2389-----------------
2390
2391 1. Change 4.43/35 introduced a bug that caused file counts to be
2392 incorrectly computed when quota_filecount was set in an appendfile
2393 transport
2394
2395 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2396 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2397 place.
2398
2399 3. Give more explanation in the error message when the command for a transport
2400 filter fails to execute.
2401
2402 4. There are several places where Exim runs a non-Exim command in a
2403 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2404 was being done only for the command run by the queryprogram router. It is
2405 now done for all such subprocesses. The other cases are: ${run, transport
2406 filters, and the commands run by the lmtp and pipe transports.
2407
2408 5. Some older OS have a limit of 256 on the maximum number of file
2409 descriptors. Exim was using setrlimit() to set 1000 as a large value
2410 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2411 systems. I've change it so that if it can't get 1000, it tries for 256.
2412
2413 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2414 was an oversight, and furthermore, ever since the addition of extra
2415 controls (e.g. 4.43/32), the checks on when to allow different forms of
2416 "control" were broken. There should now be diagnostics for all cases when a
2417 control that does not make sense is encountered.
2418
2419 7. $recipients is now available in the predata ACL (oversight).
2420
2421 8. Tidy the search cache before the fork to do a delivery from a message
2422 received from the command line. Otherwise the child will trigger a lookup
2423 failure and thereby defer the delivery if it tries to use (for example) a
2424 cached ldap connection that the parent has called unbind on.
2425
2426 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2427 of $address_data from the recipient verification was clobbered by the
2428 sender verification.
2429
243010. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2431 was its contents. (It was OK if the option was not defined at all.)
2432
243311. A "Completed" log line is now written for messages that are removed from
2434 the spool by the -Mrm option.
2435
243612. $host_address is now set to the target address during the checking of
2437 ignore_target_hosts.
2438
243913. When checking ignore_target_hosts for an ipliteral router, no host name was
2440 being passed; this would have caused $sender_host_name to have been used if
2441 matching the list had actually called for a host name (not very likely,
2442 since this list is usually IP addresses). A host name is now passed as
2443 "[x.x.x.x]".
2444
244514. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2446 code that specifies a non-restarting handler (typically sigaction() in
2447 modern systems) in an attempt to fix a rare and obscure crash bug.
2448
244915. Narrowed the window for a race in the daemon that could cause it to ignore
2450 SIGCHLD signals. This is not a major problem, because they are used only to
2451 wake it up if nothing else does.
2452
245316. A malformed maildirsize file could cause Exim to calculate negative values
2454 for the mailbox size or file count. Odd effects could occur as a result.
2455 The maildirsize information is now recalculated if the size or filecount
2456 end up negative.
2457
245817. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2459 support for a long time. Removed HAVE_SYS_VFS_H.
2460
ea3a6f44 246118. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2462
246319. Allow an empty sender to be matched against a lookup in an address list.
2464 Previously the only cases considered were a regular expression, or an
2465 empty pattern.
2466
246720. Exim went into a mad DNS lookup loop when doing a callout where the
2468 host was specified on the transport, if the DNS lookup yielded more than
2469 one IP address.
2470
ea3a6f44
NM
247121. The RFC2047 encoding function was originally intended for short strings
2472 such as real names; it was not keeping to the 75-character limit for
2473 encoded words that the RFC imposes. It now respects the limit, and
2474 generates multiple encoded words if necessary. To be on the safe side, I
2475 have increased the buffer size for the ${rfc2047: expansion operator from
2476 1024 to 2048 bytes.
bbe902f0 2477
ea3a6f44
NM
247822. Failure to deliver a bounce message always caused it to be frozen, even if
2479 there was an errors_to setting on the router. The errors_to setting is now
2480 respected.
bbe902f0
PH
2481
248223. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2483 canonical form (fully expanded) before being placed in
2484 $sender_host_address.
2485
248624. Updated eximstats to version 1.33
2487
ea3a6f44
NM
248825. Include certificate and key file names in error message when GnuTLS fails
2489 to set them up, because the GnuTLS error message doesn't include the name
2490 of the failing file when there is a problem reading it.
bbe902f0
PH
2491
249226. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2493 As per change 25.
bbe902f0 2494
ea3a6f44
NM
249527. Reset the locale to "C" after calling embedded Perl, in case it was changed
2496 (this can affect the format of dates).
bbe902f0 2497
ea3a6f44
NM
249828. exim_tidydb, when checking for the continued existence of a message for
2499 which it has found a message-specific retry record, was not finding
2500 messages that were in split spool directories. Consequently, it was
2501 deleting retry records that should have stayed in existence.
bbe902f0
PH
2502
250329. eximstats updated to version 1.35
2504 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2505 1.35 - bugfix such that pie charts by volume are generated correctly
2506
ea3a6f44
NM
250730. The SPA authentication driver was not abandoning authentication and moving
2508 on to the next authenticator when an expansion was forced to fail,
2509 contradicting the general specification for all authenticators. Instead it
2510 was generating a temporary error. It now behaves as specified.
bbe902f0 2511
ea3a6f44
NM
251231. The default ordering of permitted cipher suites for GnuTLS was pessimal
2513 (the order specifies the preference for clients). The order is now AES256,
2514 AES128, 3DES, ARCFOUR128.
bbe902f0 2515
ea3a6f44
NM
251631. Small patch to Sieve code - explicitly set From: when generating an
2517 autoreply.
bbe902f0 2518
ea3a6f44
NM
251932. Exim crashed if a remote delivery caused a very long error message to be
2520 recorded - for instance if somebody sent an entire SpamAssassin report back
2521 as a large number of 550 error lines. This bug was coincidentally fixed by
2522 increasing the size of one of Exim's internal buffers (big_buffer) that
2523 happened as part of the Exiscan merge. However, to be on the safe side, I
2524 have made the code more robust (and fixed the comments that describe what
2525 is going on).
bbe902f0 2526
ea3a6f44
NM
252733. Some experimental protocols are using DNS PTR records for new purposes. The
2528 keys for these records are domain names, not reversed IP addresses. The
2529 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2530 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2531 CAN-2005-0021
2532
ea3a6f44
NM
253334. The host_aton() function is supposed to be passed a string that is known
2534 to be a valid IP address. However, in the case of IPv6 addresses, it was
2535 not checking this. This is a hostage to fortune. Exim now panics and dies
2536 if the condition is not met. A case was found where this could be provoked
2537 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2538 components; fortuitously, this particular loophole had already been fixed
2539 by change 4.50/55 or 4.44/33 above.
2540
2541 If there are any other similar loopholes, the new check in host_aton()
2542 itself should stop them being exploited. The report I received stated that
2543 data on the command line could provoke the exploit when Exim was running as
2544 exim, but did not say which command line option was involved. All I could
2545 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2546 running as the user.
bbe902f0
PH
2547 CAN-2005-0021
2548
ea3a6f44
NM
254935. There was a buffer overflow vulnerability in the SPA authentication code
2550 (which came originally from the Samba project). I have added a test to the
2551 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2552 CAN-2005-0022
2553
ea3a6f44
NM
255436. The daemon start-up calls getloadavg() while still root for those OS that
2555 need the first call to be done as root, but it missed one case: when
2556 deliver_queue_load_max is set with deliver_drop_privilege. This is
2557 necessary for the benefit of the queue runner, because there is no re-exec
2558 when deliver_drop_privilege is set.
bbe902f0 2559
ea3a6f44
NM
256037. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2561 was in use, was not putting the data itself into the right store pool;
2562 consequently, it could be overwritten for a subsequent message in the same
2563 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2564 the caching.)
bbe902f0 2565
ea3a6f44
NM
256638. Sometimes the final signoff response after QUIT could fail to get
2567 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2568 < 0 before doing a fflush(). This bug looks as though it goes back to the
2569 introduction of TLS in release 3.20, but "sometimes" must have been rare
2570 because the tests only now provoked it.
bbe902f0
PH
2571
2572
495ae4b0
PH
2573Exim version 4.43
2574-----------------
2575
2576 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2577 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2578 Now it returns an integer. A number of calls were still expecting a T/F
2579 return. Fortuitously, in all cases, the tests worked in OK situations,
2580 which is the norm. However, things would have gone wrong on any write
2581 failures on the smtp file descriptor. This function is used when sending
2582 messages over SMTP and also when doing verify callouts.
2583
2584 2. When Exim is called to do synchronous delivery of a locally submitted
2585 message (the -odf or -odi options), it no longer closes stderr before doing
2586 the delivery.
2587
2588 3. Implemented the mua_wrapper option.
2589
2590 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2591
2592 5. Implemented the functions header_remove(), header_testname(),
2593 header_add_at_position(), and receive_remove_recipient(), and exported them
2594 to local_scan().
2595
2596 6. If an ACL "warn" statement specified the addition of headers, Exim already
2597 inserted X-ACL-Warn: at the start if there was no header name. However, it
2598 was not making this test for the second and subsequent header lines if
2599 there were newlines in the string. This meant that an invalid header could
2600 be inserted if Exim was badly configured.
2601
2602 7. Allow an ACL "warn" statement to add header lines at the start or after all
2603 the Received: headers, as well as at the end.
2604
2605 8. Added the rcpt_4xx retry error code.
2606
2607 9. Added postmaster_mailfrom=xxx to callout verification option.
2608
260910. Added mailfrom=xxxx to the callout verification option, for verify=
2610 header_sender only.
2611
261211. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2613 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2614
261512. Inserted some casts to stop certain compilers warning when using pointer
2616 differences as field lengths or precisions in printf-type calls (mostly
2617 affecting debugging statements).
2618
261913. Added optional readline() support for -be (dynamically loaded).
2620
262114. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2622 same clock tick as a message's arrival, so that its received time was the
2623 same as the "first fail" time on the retry record, and that message
2624 remained on the queue past the ultimate address timeout, every queue runner
2625 would try a delivery (because it was past the ultimate address timeout) but
2626 after another failure, the ultimate address timeout, which should have then
2627 bounced the address, did not kick in. This was a "< instead of <=" error;
2628 in most cases the first failure would have been in the next clock tick
2629 after the received time, and all would be well.
2630
263115. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2632 being recognized when the domain list was tested by the match_domain
2633 condition in an expansion string.
2634
263516. Added the ${str2b64: operator.
2636
263717. Exim was always calling setrlimit() to set a large limit for the number of
2638 processes, without checking whether the existing limit was already
2639 adequate. (It did check for the limit on file descriptors.) Furthermore,
2640 errors from getrlimit() and setrlimit() were being ignored. Now they are
2641 logged to the main and panic logs, but Exim does carry on, to try to do its
2642 job under whatever limits there are.
2643
264418. Imported PCRE 5.0.
2645
264619. Trivial typo in log message " temporarily refused connection" (the leading
2647 space).
2648
264920. If the log selector return_path_on_delivery was set and an address was
2650 redirected to /dev/null, the delivery process crashed because it assumed
2651 that a return path would always be set for a "successful" delivery. In this
2652 case, the whole delivery is bypassed as an optimization, and therefore no
2653 return path is set.
2654
265521. Internal re-arrangement: the function for sending a challenge and reading
2656 a response while authentication was assuming a zero-terminated challenge
2657 string. It's now changed to take a pointer and a length, to allow for
2658 binary data in such strings.
2659
266022. Added the cyrus_sasl authenticator (code supplied by MBM).
2661
266223. Exim was not respecting finduser_retries when seeking the login of the
2663 uid under which it was called; it was always trying 10 times. (The default
2664 setting of finduser_retries is zero.) Also, it was sleeping after the final
2665 failure, which is pointless.
2666
266724. Implemented tls_on_connect_ports.
2668
266925. Implemented acl_smtp_predata.
2670
267126. If the domain in control=submission is set empty, Exim assumes that the
2672 authenticated id is a complete email address when it generates From: or
2673 Sender: header lines.
2674
267527. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2676 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2677 chown and chgrp in /bin and hostname in /usr/bin.
2678
267928. Exim was keeping the "process log" file open after each use, just as it
2680 does for the main log. This opens the possibility of it remaining open for
2681 long periods when the USR1 signal hits a daemon. Occasional processlog
2682 errors were reported, that could have been caused by this. Anyway, it seems
2683 much more sensible not to leave this file open at all, so that is what now
2684 happens.
2685
268629. The long-running daemon process does not normally write to the log once it
2687 has entered its main loop, and it closes the log before doing so. This is
2688 so that log files can straightforwardly be renamed and moved. However,
2689 there are a couple of unusual error situations where the daemon does write
2690 log entries, and I had neglected to close the log afterwards.
2691
269230. The text of an SMTP error response that was received during a remote
2693 delivery was being truncated at 512 bytes. This is too short for some of
2694 the long messages that one sometimes sees. I've increased the limit to
2695 1024.
2696
269731. It is now possible to make retry rules that apply only when a message has a
2698 specific sender, in particular, an empty sender.
2699
270032. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2701 it possible to be selective about when SMTP synchronization is enforced.
2702
270333. Added "control = caseful_local_part" and "control = "caselower_local_part".
2704
270532. Implemented hosts_connection_nolog.
2706
270733. Added an ACL for QUIT.
2708
270934. Setting "delay_warning=" to disable warnings was not working; it gave a
2710 syntax error.
2711
271235. Added mailbox_size and mailbox_filecount to appendfile.
2713
271436. Added control = no_multiline_responses to ACLs.
2715
271637. There was a bug in the logic of the code that waits for the clock to tick
2717 in the case where the clock went backwards by a substantial amount such
2718 that the microsecond fraction of "now" was more than the microsecond
2719 fraction of "then" (but the whole seconds number was less).
2720
272138. Added support for the libradius Radius client library this is found on
2722 FreeBSD (previously only the radiusclient library was supported).
2723
2724
2725Exim version 4.42
2726-----------------
2727
2728 1. When certain lookups returned multiple values in the form name=value, the
2729 quoting of the values was not always being done properly. Specifically:
2730 (a) If the value started with a double quote, but contained no whitespace,
2731 it was not quoted.
2732 (b) If the value contained whitespace other than a space character (i.e.
2733 tabs or newlines or carriage returns) it was not quoted.
2734 This fix has been applied to the mysql and pgsql lookups by writing a
2735 separate quoting function and calling it from the lookup code. The fix
2736 should probably also be applied to nisplus, ibase and oracle lookups, but
2737 since I cannot test any of those, I have not disturbed their existing code.
2738
2739 2. A hit in the callout cache for a specific address caused a log line with no
2740 reason for rejecting RCPT. Now it says "Previous (cached) callout
2741 verification failure".
2742
2743 3. There was an off-by-one bug in the queryprogram router. An over-long
2744 return line was truncated at 256 instead of 255 characters, thereby
2745 overflowing its buffer with the terminating zero. As well as fixing this, I
2746 have increased the buffer size to 1024 (and made a note to document this).
2747
2748 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2749 when Exim is waiting for an SMTP response from a remote server, Exim
2750 restarts its select() call on the socket, thereby resetting its timeout.
2751 This is not a problem when such interrupts are rare. Somebody set up a cron
2752 job to run exiwhat every 2 minutes, which is less than the normal select()
2753 timeout (5 or 10 minutes). This meant that the select() timeout never
2754 kicked in because it was always reset. I have fixed this by comparing the
2755 time when an interrupt arrives with the time at the start of the first call
2756 to select(). If more time than the timeout has elapsed, the interrupt is
2757 treated as a timeout.
2758
2759 5. Some internal re-factoring in preparation for the addition of Sieve
2760 extensions (by MH). In particular, the "personal" test is moved to a
2761 separate function, and given an option for scanning Cc: and Bcc: (which is
2762 not set for Exim filters).
2763
2764 6. When Exim created an email address using the login of the caller as the
2765 local part (e.g. when creating a From: or Sender: header line), it was not
2766 quoting the local part when it contained special characters such as @.
2767
2768 7. Installed new OpenBSD configuration files.
2769
2770 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2771 try to make them clearer.
2772
2773 9. Callout options, other than the timeout value, were being ignored when
2774 verifying sender addresses in header lines. For example, when using
2775
2776 verify = header_sender/callout=no_cache
2777
2778 the cache was (incorrectly) being used.
2779
278010. Added a missing instance of ${EXE} to the exim_install script; this affects
2781 only the Cygwin environment.
2782
278311. When return_path_on_delivery was set as a log selector, if different remote
2784 addresses in the same message used different return paths and parallel
2785 remote delivery occurred, the wrong values would sometimes be logged.
2786 (Whenever a remote delivery process finished, the return path value from
2787 the most recently started remote delivery process was logged.)
2788
278912. RFC 3848 specifies standard names for the "with" phrase in Received: header
2790 lines when AUTH and/or TLS are in use. This is the "received protocol"
2791 field. Exim used to use "asmtp" for authenticated SMTP, without any
2792 indication (in the protocol name) for TLS use. Now it follows the RFC and
2793 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
2794 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
2795 names appear in log lines as well as in Received: header lines.
2796
279713. Installed MH's patches for Sieve to add the "copy" and "vacation"
2798 extensions, and comparison tests, and to fix some bugs.
2799
280014. Changes to the "personal" filter test:
2801
2802 (1) The test was buggy in that it was just doing the equivalent of
2803 "contains" tests on header lines. For example, if a user's address was
2804 anne@some.where, the "personal" test would incorrectly be true for
2805
2806 To: susanne@some.where
2807
2808 This test is now done by extracting each address from the header in turn,
2809 and checking the entire address. Other tests that are part of "personal"
2810 are now done using regular expressions (for example, to check local parts
2811 of addresses in From: header lines).
2812
2813 (2) The list of non-personal local parts in From: addresses has been
2814 extended to include "listserv", "majordomo", "*-request", and "owner-*",
2815 taken from the Sieve specification recommendations.
2816
2817 (3) If the message contains any header line starting with "List-" it is
2818 treated as non-personal.
2819
2820 (4) The test for "circular" in the Subject: header line has been removed
2821 because it now seems ill-conceived.
2822
282315. Minor typos in src/EDITME comments corrected.
2824
282516. Installed latest exipick from John Jetmore.
2826
282717. If headers_add on a router specified a text string that was too long for
2828 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
2829 of string_sprintf() is now avoided.
2830
283118. $message_body_size was not set (it was always zero) when running the DATA
2832 ACL and the local_scan() function.
2833
283419. For the "mail" command in an Exim filter, no default was being set for
2835 the once_repeat time, causing a random time value to be used if "once" was
2836 specified. (If the value happened to be <= 0, no repeat happened.) The
2837 default is now 0s, meaning "never repeat". The "vacation" command was OK
2838 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
2839 (I found it when inspecting the code).
2840
284120. There is now an overall timeout for performing a callout verification. It
2842 defaults to 4 times the callout timeout, which applies to individual SMTP
2843 commands during the callout. The overall timeout applies when there is more
2844 than one host that can be tried. The timeout is checked before trying the
2845 next host. This prevents very long delays if there are a large number of
2846 hosts and all are timing out (e.g. when the network connections are timing
2847 out). The value of the overall timeout can be changed by specifying an
2848 additional sub-option for "callout", called "maxwait". For example:
2849
2850 verify = sender/callout=5s,maxwait=20s
2851
285221. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
2853 to the end before writing, but this should make it even safer).
2854
285522. Exim was forgetting that it had advertised PIPELINING for the second and
2856 subsequent messages on an SMTP connection. It was also not resetting its
2857 memory on STARTTLS and an internal HELO.
2858
285923. When Exim logs an SMTP synchronization error within a session, it now
2860 records whether PIPELINING has been advertised or not.
2861
286224. Added 3 instances of "(long int)" casts to time_t variables that were being
2863 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
2864 rather than long int.
2865
286625. Installed the latest Cygwin configuration files from the Cygwin maintainer.
2867
286826. Added the never_mail option to autoreply.
2869
2870
2871Exim version 4.41
2872-----------------
2873
2874 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
2875 crash if the getsockname() call failed; this can happen if a connection is
2876 closed very soon after it is established. The problem was simply in the
2877 order in which certain operations were done, causing Exim to try to write
2878 to the SMTP stream before it had set up the file descriptor. The bug has
2879 been fixed by making things happen in the correct order.
2880
2881
2882Exim version 4.40
2883-----------------
2884
2885 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
2886 before the connection was closed, thus losing the rejection response.
2887
2888 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
2889 some early Solaris releases, but causes trouble in current releases where
2890 socklen_t is defined.
2891
2892 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
2893 always exist.
2894
2895 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
2896 configured.
2897
2898 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
2899 that releasing the top of it at the end releases what was used for sub-
2900 expansions (unless the block got too big). However, discard this block if
2901 the first thing is a variable or header, so that we can use its block when
2902 it is dynamic (useful for very large $message_headers, for example).
2903
2904 6. Lookups now cache *every* query, not just the most recent. A new, separate
2905 store pool is used for this. It can be recovered when all lookup caches are
2906 flushed. Lookups now release memory at the end of their result strings.
2907 This has involved some general refactoring of the lookup sources.
2908
2909 7. Some code has been added to the store_xxx() functions to reduce the amount
2910 of flapping under certain conditions.
2911
2912 8. log_incoming_interface used to affect only the <= reception log lines. Now
2913 it causes the local interface and port to be added to several more SMTP log
2914 lines, for example "SMTP connection from", and rejection lines.
2915
2916 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
2917
291810. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
2919
292011. If $host_data was set by virtue of a hosts lookup in an ACL, its value
2921 could be overwritten at the end of the current message (or the start of a
2922 new message if it was set in a HELO ACL). The value is now preserved for
2923 the duration of the SMTP connection.
2924
292512. If a transport had a headers_rewrite setting, and a matching header line
2926 contained an unqualified address, that address was qualified, even if it
2927 did not match any rewriting rules. The underlying bug was that the values
2928 of the flags that permit the existence of unqualified sender and recipient
2929 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
2930 non-local messages, and by -bnq for local messages) were not being
2931 preserved with the message after it was received.
2932
293313. When Exim was logging an SMTP synchronization error, it could sometimes log
2934 "next input=" as part of the text comprising the host identity instead of
2935 the correct text. The code was using the same buffer for two different
2936 strings. However, depending on which order the printing function evaluated
2937 its arguments, the bug did not always show up. Under Linux, for example, my
2938 test suite worked just fine.
2939
294014. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
2941 doesn't work with some older versions of Perl. It has been changed to "my",
2942 which in any case is probably the better facility to use.
2943
294415. A really picky compiler found some instances of statements for creating
2945 error messages that either had too many or two few arguments for the format
2946 string.
2947
294816. The size of the buffer for calls to the DNS resolver has been increased
2949 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
2950 for addresses that have a lot of PTR records. This alleviates a problem; it
2951 does not fully solve it.
2952
295317. A dnsdb lookup for PTR records that receives more data than will fit in the
2954 buffer now truncates the list and logs the incident, which is the same
2955 action as happens when Exim is looking up a host name and its aliases.
2956 Previously in this situation something unpredictable would happen;
2957 sometimes it was "internal error: store_reset failed".
2958
295918. If a server dropped the connection unexpectedly when an Exim client was
2960 using GnuTLS and trying to read a response, the client delivery process
2961 crashed while trying to generate an error log message.
2962
296319. If a "warn" verb in an ACL added multiple headers to a message in a single
2964 string, for example:
2965
2966 warn message = H1: something\nH2: something
2967
2968 the text was added as a single header line from Exim's point of view
2969 though it ended up OK in the delivered message. However, searching for the
2970 second and subsequent header lines using $h_h2: did not work. This has been
2971 fixed. Similarly, if a system filter added multiple headers in this way,
2972 the routers could not see them.
2973
297420. Expanded the error message when iplsearch is called with an invalid key to
2975 suggest using net-iplsearch in a host list.
2976
297721. When running tests using -bh, any delays imposed by "delay" modifiers in
2978 ACLs are no longer actually imposed (and a message to that effect is
2979 output).
2980
298122. If a "gecos" field in a passwd entry contained escaped characters, in
2982 particular, if it contained a \" sequence, Exim got it wrong when building
2983 a From: or a Sender: header from that name. A second bug also caused
2984 incorrect handling when an unquoted " was present following a character
2985 that needed quoting.
2986
298723. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
2988 was not being matched caselessly.
2989
299024. Arranged for all hyphens in the exim.8 source to be escaped with
2991 backslashes.
2992
299325. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
2994 properly. Recipient callout cache records were still being keyed to include
2995 the sender, even when use_sender was set false. This led to far more
2996 callouts that were necessary. The sender is no longer included in the key
2997 when use_sender is false.
2998
299926. Added "control = submission" modifier to ACLs.
3000
300127. Added the ${base62d: operator to decode base 62 numbers.
3002
300328. dnsdb lookups can now access SRV records.
3004
300529. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3006 the configuration file.
3007
300830. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3009 (-v) mode. This makes the output for a verbose queue run more intelligible.
3010
301131. Added a use_postmaster feature to recipient callouts.
3012
301332. Added the $body_zerocount variable, containing the number of binary zero
3014 bytes in the message body.
3015
301633. The time of last modification of the "new" subdirectory is now used as the
3017 "mailbox time last read" when there is a quota error for a maildir
3018 delivery.
3019
302034. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3021
302235. Added +ignore_unknown as a special item in host lists.
3023
302436. Code for decoding IPv6 addresses in host lists is now included, even if
3025 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3026 address was recognized as an IP address, but was then not correctly decoded
3027 into binary, causing unexpected and incorrect effects when compared with
3028 another IP address.
3029
3030
3031Exim version 4.34
3032-----------------
3033
3034 1. Very minor rewording of debugging text in manualroute to say "list of
3035 hosts" instead of "hostlist".
3036
3037 2. If verify=header_syntax was set, and a header line with an unqualified
3038 address (no domain) and a large number of spaces between the end of the
3039 name and the colon was received, the reception process suffered a buffer
3040 overflow, and (when I tested it) crashed. This was caused by some obsolete
3041 code that should have been removed. The fix is to remove it!
3042
3043 3. When running in the test harness, delay a bit after writing a bounce
3044 message to get a bit more predictability in the log output.
3045
3046 4. Added a call to search_tidyup() just before forking a reception process. In
3047 theory, someone could use a lookup in the expansion of smtp_accept_max_
3048 per_host which, without the tidyup, could leave open a database connection.
3049
3050 5. Added the variables $recipient_data and $sender_data which get set from a
3051 lookup success in an ACL "recipients" or "senders" condition, or a router
3052 "senders" option, similar to $domain_data and $local_part_data.
3053
3054 6. Moved the writing of debug_print from before to after the "senders" test
3055 for routers.
3056
3057 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3058 problems for message scanning, either using a data ACL, or using
3059 local_scan() because the Received: header was not generated till after they
3060 were called (in order to set the time as the time of reception completion).
3061 I have revised the way this works. The header is now generated after the
3062 body is received, but before the ACL or local_scan() are called. After they
3063 are run, the timestamp in the header is updated.
3064
3065
3066Exim version 4.33
3067-----------------
3068
3069 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3070 before starting a queue runner without re-exec. This happened only when
3071 deliver_drop_privilege was set or when the Exim user was set to root. The
3072 effect of the bug was that timeouts during subsequent deliveries caused
3073 crashes instead of being properly handled. The handler is now left at its
3074 default (and expected) setting.
3075
3076 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3077 message, again when deliver_drop_privilege is set or Exim is run as root.
3078 The bug described in (1) was not present in this case, but the tidying up
3079 of the other signals was missing. I have made the two cases consistent.
3080
3081 3. The ignore_target_hosts setting on a manualroute router was being ignored
3082 for hosts that were looked up using the /MX notation.
3083
3084 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3085 in domain lists.
3086
3087 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3088 operated on the sender address. After changing the $sender_address to <>
3089 for the sender address verify, Exim was re-instated it as the original
3090 (before rewriting) address, but remembering that it had rewritten it, so it
3091 wasn't rewriting it again. This bug also had the effect of breaking the
3092 sender address verification caching when the sender address was rewritten.
3093
3094 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3095 This has been changed so that if the ip literal address matches
3096 ignore_target_hosts, the router declines.
3097
3098 7. Added expansion conditions match_domain, match_address, and match_local_
3099 part (NOT match_host).
3100
3101 8. The placeholder for the Received: header didn't have a length field set.
3102
3103 9. Added code to Exim itself and to exim_lock to test for a specific race
3104 condition that could lead to file corruption when using MBX delivery. The
3105 issue is with the lockfile that is created in /tmp. If this file is removed
3106 after a process has opened it but before that process has acquired a lock,
3107 there is the potential for a second process to recreate the file and also
3108 acquire a lock. This could lead to two Exim processes writing to the file
3109 at the same time. The added code performs the same test as UW imapd; it
3110 checks after acquiring the lock that its file descriptor still refers to
3111 the same named file.
3112
311310. The buffer for building added header lines was of fixed size, 8192 bytes.
3114 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3115 when Exim is built.
3116
311711. Added the smtp_active_hostname option. If used, this will typically be made
3118 to depend on the incoming interface address. Because $interface_address is
3119 not set up until the daemon has forked a reception process, error responses
3120 that can happen earlier (such as "too many connections") no longer contain
3121 a host name.
3122
312312. If an expansion in a condition on a "warn" statement fails because a lookup
3124 defers, the "warn" statement is abandoned, and the next ACL statement is
3125 processed. Previously this caused the whole ACL to be aborted.
3126
312713. Added the iplsearch lookup type.
3128
312914. Added ident_timeout as a log selector.
3130
313115. Added tls_certificate_verified as a log selector.
3132
313316. Added a global option tls_require_ciphers (compare the smtp transport
3134 option of the same name). This controls incoming TLS connections.
3135
313617. I finally figured out how to make tls_require_ciphers do a similar thing
3137 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3138 before starting the TLS session.
3139
314018. Tabs are now shown as \t in -bP output.
3141
314219. If the log selector return_path_on_delivery was set, Exim crashed when
3143 bouncing a message because it had too many Received: header lines.
3144
314520. If two routers both had headers_remove settings, and the first one included
3146 a superfluous trailing colon, the final name in the first list and the
3147 first name in the second list were incorrectly joined into one item (with a
3148 colon in the middle).
3149
3150
3151Exim version 4.32
3152-----------------
3153
3154 1. Added -C and -D options to the exinext utility, mainly to make it easier
3155 to include in the automated testing, but these could be helpful when
3156 multiple configurations are in use.
3157
3158 2. The exinext utility was not formatting the output nicely when there was
3159 an alternate port involved in the retry record key, nor when there was a
3160 message id as well (for retries that were specific to a specific message
3161 and a specific host). It was also confused by IPv6 addresses, because of
3162 the additional colons they contain. I have fixed the IPv4 problem, and
3163 patched it up to do a reasonable job for IPv6.
3164
3165 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3166 delivery, the log line now contains "pipelined" if PIPELINING was used.
3167
3168 4. An SMTP transport process used to panic and die if the bind() call to set
3169 an explicit outgoing interface failed. This has been changed; it is now
3170 treated in the same way as a connect() failure.
3171
3172 5. A reference to $sender_host_name in the part of a conditional expansion
3173 that was being skipped was still causing a DNS lookup. This no longer
3174 occurs.
3175
3176 6. The def: expansion condition was not recognizing references to header lines
3177 that used bh_ and bheader_.
3178
3179 7. Added the _cache feature to named lists.
3180
3181 8. The code for checking quota_filecount in the appendfile transport was
3182 allowing one more file than it should have been.
3183
3184 9. For compatibility with Sendmail, the command line option
3185
3186 -prval:sval
3187
3188 is equivalent to
3189
3190 -oMr rval -oMs sval
3191
3192 and sets the incoming protocol and host name (for trusted callers). The
3193 host name and its colon can be omitted when only the protocol is to be set.
3194 Note the Exim already has two private options, -pd and -ps, that refer to
3195 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3196 "s", but I don't think that's a major issue.
3197
319810. A number of refactoring changes to the code, none of which should affect
3199 Exim's behaviour:
3200
3201 (a) The number of logging options was getting close to filling up the
3202 32-bit word that was used as a bit map. I have split them into two classes:
3203 those that are passed in the argument to log_write(), and those that are
3204 only ever tested independently outside of that function. These are now in
3205 separate 32-bit words, so there is plenty of room for expansion again.
3206 There is no change in the user interface or the logging behaviour.
3207
3208 (b) When building, for example, log lines, the code previously used a
3209 macro that called string_cat() twice, in order to add two strings. This is
3210 not really sufficiently general. Furthermore, there was one instance where
3211 it was actually wrong because one of the argument was used twice, and in
3212 one call a function was used. (As it happened, calling the function twice
3213 did not affect the overall behaviour.) The macro has been replaced by a
3214 function that can join an arbitrary number of extra strings onto a growing
3215 string.
3216
3217 (c) The code for expansion conditions now uses a table and a binary chop
3218 instead of a serial search (which was left over from when there were very
3219 few conditions). Also, it now recognizes conditions like "pam" even when
3220 the relevant support is not compiled in: a suitably worded error message is
3221 given if an attempt is made to use such a condition.
3222
322311. Added ${time_interval:xxxxx}.
3224
322512. A bug was causing one of the ddress fields not to be passed back correctly
3226 from remote delivery subprocesses. The field in question was not being
3227 subsequently used, so this caused to problems in practice.
3228
322913. Added new log selectors queue_time and deliver_time.
3230
323114. Might have fixed a bug in maildirsizefile handling that threw up
3232 "unexpected character" debug warnings, and recalculated the data
3233 unnecessarily. In any case, I expanded the warning message to give more
3234 information.
3235
323615. Added the message "Restricted characters in address" to the statements in
3237 the default ACL that block characters like @ and % in local parts.
3238
323916. Change 71 for release 4.31 proved to be much less benign that I imagined.
3240 Three changes have been made:
3241
3242 (a) There was a serious bug; a negative response to MAIL caused the whole
3243 recipient domain to be cached as invalid, thereby blocking all messages
3244 to all local parts at the same domain, from all senders. This bug has
3245 been fixed. The domain is no longer cached after a negative response to
3246 MAIL if the sender used is not empty.
3247
3248 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3249 been restored.
3250
3251 (c) A new callout option, "use_sender" has been added for people who want
3252 the modified behaviour.
3253
3254
3255Exim version 4.31
3256-----------------
3257
3258 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3259 Larry Rosenman.
3260
3261 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3262 indeed breaks things for older releases.
3263
3264 3. Added additional logging to the case where there is a problem reading data
3265 from a filter that is running in a subprocess using a pipe, in order to
3266 try to track down a specific problem.
3267
3268 4. Testing facility fudge: when running in the test harness and attempting
3269 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3270 getting "No route to host". Convert this to a timeout.
3271
3272 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3273 warning.
3274
3275 6. Some OS don't have socklen_t but use size_t instead. This affects the
3276 fifth argument of getsockopt() amongst other things. This is now
3277 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3278 can be set for individual OS. I have set it for SunOS5, OSF1, and
3279 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3280 some earlier ones do not.
3281
3282 7. Change 4.30/15 was not doing the test caselessly.
3283
3284 8. The standard form for an IPv6 address literal was being rejected by address
3285 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3286 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3287 this, as well as the form without the "IPv6" on the front (but only when
3288 address literals are enabled, of course).
3289
3290 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3291
329210. Exim crashed if a message with an empty sender address specified by -f
3293 encountered a router with an errors_to setting. This could be provoked only
3294 by a command such as
3295
3296 exim -f "" ...
3297
3298 where an empty string was supplied; "<>" did not hit this bug.
3299
330011. Installed PCRE release 4.5.
3301
330212. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3303 remained set. It is now erased.
3304
330513. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3306 times from message ids (which are base 36 rather than the normal 62).
3307
330814. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3309 were being counted as actual protocol errors, and logged if the log
3310 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3311 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3312 and DATA following a set of rejected RCPTs do not count as protocol errors.
3313 In other words, Exim assumes they were pipelined, though this may not
3314 actually be the case. Of course, in all cases the client gets an
3315 appropriate error code.
3316
331715. If a lookup fails in an ACL condition, a message about the failure may
3318 be available; it is used if testing the ACL cannot continue, because most
3319 such messages specify what the cause of the deferral is. However, some
3320 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3321 that caused an old message to be retained and used if a later statement
3322 caused a defer, replacing the real cause of the deferral.
3323
332416. If an IP address had so many PTR records that the DNS lookup buffer
3325 was not large enough to hold them, Exim could crash while trying to process
3326 the truncated data. It now detects and logs this case.
3327
332817. Further to 4.21/58, another change has been made: if (and only if) the
3329 first line of a message (the first header line) ends with CRLF, a bare LF
3330 in a subsequent header line has a space inserted after it, so as not to
3331 terminate the header.
3332
333318. Refactoring: tidied an ugly bit of code in appendfile that copied data
3334 unnecessarily, used atoi() instead of strtol(), and didn't check the
3335 termination when getting file sizes from file names by regex.
3336
333719. Completely re-implemented the support for maildirsize files, in the light
3338 of a number of problems with the previous contributed implementation
3339 (4.30/29). In particular:
3340
3341 . If the quota is zero, the maildirsize file is maintained, but no quota is
3342 imposed.
3343
3344 . If the maildir directory does not exist, it is created before any attempt
3345 to write a maildirsize file.
3346
3347 . The quota value in the file is just a cache; if the quota is changed in
3348 the transport, the new value overrides.
3349
3350 . A regular expression is available for excluding directories from the
3351 count.
3352
335320. The autoreply transport checks the characters in options that define the
3354 message's headers; it allows continued headers, but it was checking with
3355 isspace() after an embedded newline instead of explicitly looking for a
3356 space or a tab.
3357
335821. If all the "regular" hosts to which an address was routed had passed their
3359 expiry times, and had not reached their retry times, the address was
3360 bounced, even if fallback hosts were defined. Now Exim should go on to try
3361 the fallback hosts.
3362
336322. Increased buffer sizes in the callout code from 1024 to 4096 to match the
3364 equivalent code in the SMTP transport. Some hosts send humungous responses
3365 to HELO/EHLO, more than 1024 it seems.
3366
336723. Refactoring: code in filter.c used (void *) for "any old type" but this
3368 gives compiler warnings in some environments. I've now done it "properly",
3369 using a union.
3370
337124. The replacement for inet_ntoa() that is used with gcc on IRIX systems
3372 (because of problems with the built-in one) was declared to return uschar *
3373 instead of char *, causing compiler failure.
3374
337525. Fixed a file descriptor leak when processing alias/forward files.
3376
337726. Fixed a minor format string issue in dbfn.c.
3378
337927. Typo in exim.c: ("dmbnz" for "dbmnz").
3380
338128. If a filter file refered to $h_xxx or $message_headers, and the headers
3382 contained RFC 2047 "words", Exim's memory could, under certain conditions,
3383 become corrupted.
3384
338529. When a sender address is verified, it is cached, to save repeating the test
3386 when there is more than one recipient in a message. However, when the
3387 verification involves a callout, it is possible for different callout
3388 options to be set for different recipients. It is too complicated to keep
3389 track of this in the cache, so now Exim always runs a verification when a
3390 callout is required, relying on the callout cache for the optimization.
3391 The overhead is duplication of the address routing, but this should not be
3392 too great.
3393
339430. Fixed a bug in callout caching. If a RCPT command caused the sender address
3395 to be verified with callout=postmaster, and the main callout worked but the
3396 postmaster check failed, the verification correctly failed. However, if a
3397 subsequent RCPT command asked for sender verification *without* the
3398 postmaster check, incorrect caching caused this verification also to fail,
3399 incorrectly.
3400
340131. Exim caches DNS lookup failures so as to avoid multiple timeouts; however,
3402 it was not caching the DNS options (qualify_single, search_parents) that
3403 were used when the lookup failed. A subsequent lookup with different
3404 options therefore always gave the same answer, though there were cases
3405 where it should not have. (Example: a "domains = !$mx_any" option on a
3406 dnslookup router: the "domains" option is always processed without any
3407 widening, but the router might have qualify_single set.) Now Exim uses the
3408 cached value only when the same options are set.
3409
341032. Added John Jetmore's "exipick" utility to the distribution.
3411
341233. GnuTLS: When an attempt to start a TLS session fails for any reason other
3413 than a timeout (e.g. a certificate is required, and is not provided), an
3414 Exim server now closes the connection immediately. Previously it waited for
3415 the client to close - but if the client is SSL, it seems that they each
3416 wait for each other, leading to a delay before one of them times out.
3417
341834: GnuTLS: Updated the code to use the new GnuTLS 1.0.0 API. I have not
3419 maintained 0.8.x compatibility because I don't think many are using it, and
3420 it is clearly obsolete.
3421
342235. Added TLS support for CRLs: a tls_crl global option and one for the smtp
3423 transport.
3424
342536. OpenSSL: $tls_certificate_verified was being set to 1 even if the
3426 client certificate was expired. A simple patch fixes this, though I don't
3427 understand the full logic of why the verify callback is called multiple
3428 times.
3429
343037. OpenSSL: a patch from Robert Roselius: "Enable client-bug workaround.
3431 Versions of OpenSSL as of 0.9.6d include a 'CBC countermeasure' feature,
3432 which causes problems with some clients (such as the Certicom SSL Plus
3433 library used by Eudora). This option, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS,
3434 disables the coutermeasure allowing Eudora to connect."
3435
343638. Exim was not checking that a write() to a log file succeeded. This could
3437 lead to Bad Things if a log got too big, in particular if it hit a file
3438 size limit. Exim now panics and dies if it cannot write to a log file, just
3439 as it does if it cannot open a log file.
3440
344139. Modified OS/Makefile-Linux so that it now contains
3442
3443 CFLAGS=-O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
3444
3445 The two -D definitions ensure that Exim is compiled with large file
3446 support, which makes it possible to handle log files that are bigger than
3447 2^31.
3448
344940. Fixed a subtle caching bug: if (in an ACL or a set of routers, for
3450 instance) a domain was checked against a named list that involved a lookup,
3451 causing $domain_data to be set, then another domain was checked against the
3452 same list, then the first domain was re-checked, the value of $domain_data
3453 after the final check could be wrong. In particular, if the second check
3454 failed, it could be set empty. This bug probably also applied to
3455 $localpart_data.
3456
345741. The strip_trailing_dot option was not being applied to the address given
3458 with the -f command-line option.
3459
346042. The code for reading a message's header from the spool was incrementing
3461 $received_count, but never initializing it. This meant that the value was
3462 incorrect (doubled) while delivering a message in the same process in which
3463 it was received. In the most common configuration of Exim, this never
3464 happens - a fresh exec is done - but it can happen when
3465 deliver_drop_privilege is set.
3466
346743. When Exim logs an SMTP synchronization error - client data sent too soon -
3468 it now includes up to 150 characters of the unexpected data in the log
3469 line.
3470
347144. The exim_dbmbuild utility uses fixed size buffers for reading input lines
3472 and building data strings. The size of both of these buffers was 10 000
3473 bytes - far larger than anybody would *ever* want, thought I. Needless to
3474 say, somebody hit the limit. I have increased the maximum line length to
3475 20 000 and the maximum data length of concatenated lines to 100 000. I have
3476 also fixed two bugs, because there was no checking on these buffers. Tsk,
3477 tsk. Now exim_dbmbuild gives a message and exits with an error code if a
3478 buffer is too small.
3479
348045. The exim_dbmbuild utility did not support quoted keys, as Exim does in
3481 lsearch lookups. Now it does.
3482
348346. When parsing a route_list item in a manualroute router, a fixed-length
3484 buffer was used for the list of hosts. I made this 1024 bytes long,
3485 thinking that nobody would ever have a list of hosts that long. Wrong.
3486 Somebody had a whole pile of complicated expansion conditions, and the
3487 string was silently truncated, leading to an expansion error. It turns out
3488 that it is easier to change to an unlimited length (owing to other changes
3489 that have happened since this code was originally written) than to build
3490 structure for giving a limitation error. The length of the item that
3491 expands into the list of hosts is now unlimited.
3492
349347. The lsearch lookup could not handle data where the length of text line was
3494 more than 4095 characters. Such lines were truncated, leading to shortened
3495 data being returned. It should now handle lines of any length.
3496
349748. Minor wording revision: "cannot test xxx in yyy ACL" becomes "cannot test
3498 xxx condition in yyy ACL" (e.g. "cannot test domains condition in DATA
3499 ACL").
3500
350149. Cosmetic tidy to scripts like exicyclog that are generated by globally
3502 replacing strings such as BIN_DIRECTORY in a source file: the replacement
3503 no longer happens in comment lines. A list of replacements is now placed
3504 at the head of all of the source files, except those whose only change is
3505 to replace PERL_COMMAND in the very first #! line.
3506
350750. Replaced the slow insertion sort in queue.c, for sorting the list of
3508 messages on the queue, with a bottom-up merge sort, using code contributed
3509 by Michael Haardt. This should make operations like -bp somewhat faster on
3510 large queues. It won't affect queue runners, except when queue_run_in_order
3511 is set.
3512
351351. Installed eximstats 1.31 in the distribution.
3514
351552. Added support for SRV lookups to the dnslookup router.
3516
351753. If an ACL referred to $message_body or $message_body_end, the value was not
3518 reset for any messages that followed in the same SMTP session.
3519
352054. The store-handling optimization for building very long strings was not
3521 differentiating between the different store pools. I don't think this
3522 actually made any difference in practice, but I've tidied it.
3523
352455. While running the routers to verify a sender address, $sender_address
3525 was still set to the sender address. This is wrong, because when routing to
3526 send a bounce to the sender, it would be empty. Therefore, I have changed
3527 it so that, while verifying a sender address, $sender_address is set to <>.
3528 (There is no change to what happens when verifying a recipient address.)
3529
353056. After finding MX (or SRV) records, Exim was doing a DNS lookup for the
3531 target A or AAAA records (if not already returned) without resetting the
3532 qualify_single or search_parents options of the DNS resolver. These are
3533 inappropriate in this case because the targets of MX and SRV records must
3534 be FQDNs. A broken DNS record could cause trouble if it happened to have a
3535 target that, when qualified, matched something in the local domain. These
3536 two options are now turned off when doing these lookups.
3537
353857. It seems that at least some releases of Reiserfs (which does not have the
3539 concept of a fixed number of inodes) returns zero and not -1 for the
3540 number of available inodes. This interacted badly with check_spool_inodes,
3541 which assumed that -1 was the "no such thing" setting. What I have done is
3542 to check that the total number of inodes is greater than zero before doing
3543 the test of how many are available.
3544
354558. When a "warn" ACL statement has a log_message modifier, the message is
3546 remembered, and not repeated. This is to avoid a lot of repetition when a
3547 message has many recipients that cause the same warning to be written.
3548 Howewer, Exim was preserving the list of already written lines for an
3549 entire SMTP session, which doesn't seem right. The memory is now reset if a
3550 new message is started.
3551
355259. The "rewrite" debugging flag was not showing the result of rewriting in the
3553 debugging output unless log_rewrite was also set.
3554
355560. Avoid a compiler warning on 64-bit systems in dsearch.c by avoiding the use
3556 of (int)(handle) when we know that handle contains (void *)(-1).
3557
355861. The Exim daemon panic-logs an error return when it closes the incoming
3559 connection. However "connection reset by peer" seems to be common, and
3560 isn't really an error worthy of noting specially, so that particular error
3561 is no long logged.
3562
356362. When Exim is trying to find all the local interfaces, it used to panic and
3564 die if the ioctl to get the interface flags failed. However, it seems that
3565 on at least one OS (Solaris 9) it is possible to have an interface that is
3566 included in the list of interfaces, but for which you get a failure error
3567 for this call. This happens when the interface is not "plumbed" into a
3568 protocol (i.e. neither IPv4 nor IPv6). I've changed the code so that a
3569 failure of the "get flags" call assumes that the interface is down.
3570
357163. Added a ${eval10: operator, which assumes all numbers are decimal. This
3572 makes life easier for people who are doing arithmetic on fields extracted
3573 from dates, where you often get leading zeros that should not be
3574 interpreted as octal.
3575
357664. Added qualify_domain to the redirect router, to override the global
3577 setting.
3578
357965. If a pathologically long header line contained very many addresses (the
3580 report of this problem mentioned 10 000) and each of them was rewritten,
3581 Exim could use up a very large amount of memory. (It kept on making new
3582 copies of the header line as it rewrote, and never released the old ones.)
3583 At the expense of a bit more processing, the header rewriting function has
3584 been changed so that it no longer eats memory in this way.
3585
358666. The generation of the Received: header has been moved from the time that a
3587 message starts to be received, to