Fix missing quota message for system quota failure with maildir.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
8932dffe 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.524 2007/08/22 14:07:30 ph10 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
eb4c0de6
PH
6Exim version 4.68
7-----------------
8
9PH/01 Another patch from the Sieve maintainer.
10
6a3bceb1
PH
11PH/02 When an IPv6 address is converted to a string for single-key lookup
12 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
13 dots are used instead of colons so that keys in lsearch files need not
14 contain colons. This was done some time before quoting was made available
15 in lsearch files. However, iplsearch files do require colons in IPv6 keys
16 (notated using the quote facility) so as to distinguish them from IPv4
17 keys. This meant that lookups for IP addresses in host lists did not work
18 for iplsearch lookups.
19
20 This has been fixed by arranging for IPv6 addresses to be expressed with
21 colons if the lookup type is iplsearch. This is not incompatible, because
22 previously such lookups could never work.
23
24 The situation is now rather anomolous, since one *can* have colons in
25 ordinary lsearch keys. However, making the change in all cases is
26 incompatible and would probably break a number of configurations.
27
2e30fa9d
TK
28TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
29 version.
30
0806a9c5
MH
31MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
32 conversion specification without a maximum field width, thereby enabling
33 a rogue spamd server to cause a buffer overflow. While nobody in their
34 right mind would setup Exim to query an untrusted spamd server, an
35 attacker that gains access to a server running spamd could potentially
36 exploit this vulnerability to run arbitrary code as the Exim user.
37
ae276964
TK
38TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
39 $primary_hostname instead of what libspf2 thinks the hosts name is.
40
0f2cbd1b
MH
41MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
42 a directory entry by the name of the lookup key. Previously, if a
43 symlink pointed to a non-existing file or a file in a directory that
44 Exim lacked permissions to read, a lookup for a key matching that
45 symlink would fail. Now it is enough that a matching directory entry
46 exists, symlink or not. (Bugzilla 503.)
47
2b85bce7
PH
48PH/03 The body_linecount and body_zerocount variables are now exported in the
49 local_scan API.
50
93655c46
PH
51PH/04 Added the $dnslist_matched variable.
52
6c512171
PH
53PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
54 This means they are set thereafter only if the connection becomes
55 encrypted.
56
57PH/06 Added the client_condition to authenticators so that some can be skipped
58 by clients under certain conditions.
59
aa6dc513
PH
60PH/07 The error message for a badly-placed control=no_multiline_responses left
61 "_responses" off the end of the name.
62
a96603a0
PH
63PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
64
8f240103
PH
65PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
66 (without spaces) instead of just copying the configuration text.
67
68PH/10 Added the /noupdate option to the ratelimit ACL condition.
69
d677b2f2
PH
70PH/11 Added $max_received_linelength.
71
d52120f2
PH
72PH/12 Added +ignore_defer and +include_defer to host lists.
73
64f2600a
PH
74PH/13 Installed PCRE version 7.2. This needed some changes because of the new
75 way in which PCRE > 7.0 is built.
76
8669f003
PH
77PH/14 Implemented queue_only_load_latch.
78
a4dc33a8
PH
79PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
80 MAIL command. The effect was to mangle the value on 64-bit systems.
81
d6a60c0f
PH
82PH/16 Another patch from the Sieve maintainer.
83
8f128379
PH
84PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
85
8932dffe
PH
86PH/18 If a system quota error occurred while trying to create the file for
87 a maildir delivery, the message "Mailbox is full" was not appended to the
88 bounce if the delivery eventually timed out. Change 4.67/27 below applied
89 only to a quota excession during the actual writing of the file.
d6a60c0f 90
eb4c0de6 91
b4ed4da0
PH
92Exim version 4.67
93-----------------
94
22ad45c9
MH
95MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
96 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
97 Jan Srzednicki.
98
b4ed4da0
PH
99PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
100 issue a MAIL command.
101
431b7361
PH
102PH/02 In an ACL statement such as
103
104 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
105
106 if a client was not listed at all, or was listed with a value other than
107 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
108 the condition was not true (as it should be), so access was not denied.
109 The bug was that the ! inversion was incorrectly passed on to the second
110 item. This has been fixed.
111
112PH/03 Added additional dnslists conditions == and =& which are different from
113 = and & when the dns lookup returns more than one IP address.
114
83da1223
PH
115PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
116 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
117
54fc8428
PH
118PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
119 FSYNC, which compiles an option called disable_fsync that allows for
120 bypassing fsync(). The documentation is heavily laced with warnings.
121
34c5e8dd
SC
122SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
123
bbe15da8
PH
124PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
125 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
126 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
127 including adding "make clean"; (3) Added -fPIC when compiling the test
128 dynamically loaded module, to get rid of a warning.
129
0e8a9471
MH
130MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
131 message fails, move_frozen_messages = true and ignore_bounce_errors_after
132 = 0s. The bug is otherwise harmless.
133
f0872424
PH
134PH/07 There was a bug in the dovecot authenticator such that the value of
135 $auth1 could be overwritten, and so not correctly preserved, after a
136 successful authentication. This usually meant that the value preserved by
137 the server_setid option was incorrect.
138
b01dd148
PH
139PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
140
6bf342e1
PH
141PH/09 Installed PCRE release 7.0.
142
273f34d0
PH
143PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
144 run for batched SMTP input. It is now run at the start of every message
145 in the batch. While fixing this I discovered that the process information
146 (output by running exiwhat) was not always getting set for -bs and -bS
147 input. This is fixed, and it now also says "batched" for BSMTP.
148
cf8b11a5
PH
149PH/11 Added control=no_pipelining.
150
41c7c167
PH
151PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
152 patch, slightly modified), and move the expansion of helo_data till after
153 the connection is made in the smtp transport (so it can use these
154 values).
155
9c57cbc0
PH
156PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
157
f3f065bb
PH
158PH/14 Added log_selector = +pid.
159
047bdd8c
PH
160PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
161
0ce9abe6
PH
162PH/16 Add ${if forany and ${if forall.
163
0e22dfd1
PH
164PH/17 Added dsn_from option to vary the From: line in DSNs.
165
4c590bd1
PH
166PH/18 Flush SMTP output before performing a callout, unless control =
167 no_callout_flush is set.
168
09945f1e
PH
169PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
170 was true (the default) a successful delivery failed to delete the retry
171 item, thus causing premature timeout of the address. The bug is now
172 fixed.
173
c51b8e75
PH
174PH/20 Added hosts_avoid_pipelining to the smtp transport.
175
e28326d8
PH
176PH/21 Long custom messages for fakedefer and fakereject are now split up
177 into multiline reponses in the same way that messages for "deny" and
178 other ACL rejections are.
179
75b1493f
PH
180PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
181 with slight modification.
182
7c5214ec
PH
183PH/23 Applied sieve patches from the maintainer "tracking the latest notify
184 draft, changing the syntax and factoring some duplicate code".
185
4311097e
PH
186PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
187 for deliveries of the second and subsequent messages over the same SMTP
188 connection.
189
29f89cad
PH
190PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
191 ${reduce, with only minor "tidies".
192
5e687460
SC
193SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
194
c3611384
PH
195PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
196 expansion side effects.
197
5a11a7b4
PH
198PH/27 When a message times out after an over-quota error from an Exim-imposed
199 quota, the bounce message says "mailbox is full". This message was not
200 being given when it was a system quota that was exceeded. It now should
201 be the same.
202
0e20aff9
MH
203MH/03 Made $recipients available in local_scan(). local_scan() already has
204 better access to the recipient list through recipients_list[], but
205 $recipients can be useful in postmaster-provided expansion strings.
206
ca86f471
PH
207PH/28 The $smtp_command and $smtp_command_argument variables were not correct
208 in the case of a MAIL command with additional options following the
209 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
210 were accidentally chopped off.
211
a14e5636
PH
212PH/29 SMTP synchronization checks are implemented when a command is read -
213 there is a check that no more input is waiting when there shouldn't be
214 any. However, for some commands, a delay in an ACL can mean that it is
215 some time before the response is written. In this time, more input might
216 arrive, invalidly. So now there are extra checks after an ACL has run for
217 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
218 pipelining has not been advertised.
219
ec95d1a6
PH
220PH/30 MH's patch to allow iscntrl() characters to be list separators.
221
42855d71
PH
222PH/31 Unlike :fail:, a custom message specified with :defer: was not being
223 returned in the SMTP response when smtp_return_error_details was false.
224 This has been fixed.
225
57c2c631
PH
226PH/32 Change the Dovecot authenticator to use read() and write() on the socket
227 instead of the C I/O that was originally supplied, because problems were
228 reported on Solaris.
229
58c01c94
PH
230PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
231 Exim which did not show up earlier: it was assuming that a call to
232 SSL_CTX_set_info_callback() might give an error value. In fact, there is
233 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
234 was a macro that became an assignment, so it seemed to work. This has
235 changed to a proper function call with a void return, hence the compile
236 error. Exim's code has been fixed.
237
dee5a20a
PH
238PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
239 cpus.
240
d2ee6114
PH
241PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
242
b2d5182b
PH
243PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
244
79749a79
PH
245PH/37 If a message is not accepted after it has had an id assigned (e.g.
246 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
247 "Completed" line in the log. When some messages of this type were
248 selected by exigrep, they were listed as "not completed". Others were
249 picked up by some special patterns. I have improved the selection
250 criteria to be more general.
79749a79 251
c456d9bb
PH
252PH/38 The host_find_failed option in the manualroute router can now be set
253 to "ignore", to completely ignore a host whose IP address cannot be
254 found. If all hosts are ignored, the behaviour is controlled by the new
255 host_all_ignored option.
256
cd9868ec
PH
257PH/39 In a list of hosts for manualroute, if one item (either because of multi-
258 homing or because of multiple MX records with /mx) generated more than
259 one IP address, and the following item turned out to be the local host,
260 all the secondary addresses of the first item were incorrectly removed
261 from the list, along with the local host and any following hosts (which
262 is what is supposed to happen).
263
ebeaf996
PH
264PH/40 When Exim receives a message, it writes the login name, uid, and gid of
265 whoever called Exim into the -H file. In the case of the daemon it was
266 behaving confusingly. When first started, it used values for whoever
267 started the daemon, but after a SIGHUP it used the Exim user (because it
268 calls itself on a restart). I have changed the code so that it now always
269 uses the Exim user.
270
2679d413
PH
271PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
272 message are rejected with the same error (e.g. no authentication or bad
273 sender address), and a DATA command is nevertheless sent (as can happen
274 with PIPELINING or a stupid MUA), the error message that was given to the
275 RCPT commands is included in the rejection of the DATA command. This is
276 intended to be helpful for MUAs that show only the final error to their
277 users.
278
84024b72
PH
279PH/42 Another patch from the Sieve maintainer.
280
8005d38e
SC
281SC/02 Eximstats - Differentiate between permanent and temporary rejects.
282 Eximstats - Fixed some broken HTML links and added missing column headers
283 (Jez Hancock).
284 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
285 columns for Rejects, Temp Rejects, Ham, and Spam rows.
286
3298c6c6
SC
287SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
288
a43a27c5
PH
289PH/43 Yet another patch from the Sieve maintainer.
290
58eb016e 291PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
292 the response to the final '.' that terminates a message, but only in the
293 case where the client has not sent further data following the '.'
294 (unfortunately, this is allowed). However, in many cases there won't be
295 any further data because there won't be any more messages to send. A call
296 to select() can be used: if it shows that the input is "ready", there is
297 either input waiting, or the socket has been closed. An attempt to read
298 the next input character can distinguish the two cases. Previously, Exim
58eb016e 299 would have sent an OK response which the client would never have see.
563b63fa
PH
300 This could lead to message repetition. This fix should cure that, at
301 least in a lot of common cases.
58eb016e 302
b43a74ea
PH
303PH/45 Do not advertise STARTTLS in response to HELP unless it would be
304 advertised in response to EHLO.
305
b4ed4da0 306
5dd1517f
PH
307Exim version 4.66
308-----------------
309
310PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
311 fixed by 4.65/MH/01 (is this a record?) are fixed:
312
313 (i) An empty string was always treated as zero by the numeric comparison
314 operators. This behaviour has been restored.
315
316 (ii) It is documented that the numeric comparison operators always treat
317 their arguments as decimal numbers. This was broken in that numbers
318 starting with 0 were being interpreted as octal.
319
320 While fixing these problems I realized that there was another issue that
321 hadn't been noticed. Values of message_size_limit (both the global option
322 and the transport option) were treated as octal if they started with 0.
323 The documentation was vague. These values are now always treated as
324 decimal, and I will make that clear in the documentation.
325
326
93cfa765
TK
327Exim version 4.65
328-----------------
329
330TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
331 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
332 versions. (#438)
333
d6066548
MH
334MH/01 Don't check that the operands of numeric comparison operators are
335 integers when their expansion is in "skipping" mode (fixes bug
336 introduced by 4.64-PH/07).
337
4362ff0d
PH
338PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
339 child addresses, Exim now panics and dies. Previously, because the count
340 is held in a short int, deliveries were likely to be lost. As such a
341 large number of recipients for a single message is ridiculous
342 (performance will be very, very poor), I have chosen to impose a limit
343 rather than extend the field.
344
93cfa765 345
944e9e9c
TF
346Exim version 4.64
347-----------------
aa41d2de 348
21d74bd9
TK
349TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
350 leftover -K file (the existence of which was triggered by #402).
351 While we were at it, introduced process PID as part of the -K
352 filename. This should rule out race conditions when creating
353 these files.
354
355TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
356 processing considerably. Previous code took too long for large mails,
357 triggering a timeout which in turn triggers #401.
358
359TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
360 in the DK code in transports.c. sendfile() is not really portable,
361 hence the _LINUX specificness.
944e9e9c
TF
362
363TF/01 In the add_headers option to the mail command in an Exim filter,
364 there was a bug that Exim would claim a syntax error in any
365 header after the first one which had an odd number of characters
366 in the field name.
367
2b1c6e3a
PH
368PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
369 callout verification, Exim cached a "reject" for the entire domain. This
370 is correct for most verifications, but it is not correct for a recipient
371 verification with use_sender or use_postmaster set, because in that case
372 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
373 case of MAIL FROM:<> rejection from other early rejections (e.g.
374 rejection of HELO). When verifying a recipient using a non-null MAIL
375 address, the cache is ignored if it shows MAIL FROM:<> rejection.
376 Whatever the result of the callout, the value of the domain cache is
377 left unchanged (for any other kind of callout, getting as far as trying
378 RCPT means that the domain itself is ok).
379
1f872c80
PH
380PH/02 Tidied a number of unused variable and signed/unsigned warnings that
381 gcc 4.1.1 threw up.
382
383PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
384 manifest itself as EPIPE rather than ECONNECT. When tidying away a
385 session, the daemon ignores ECONNECT errors and logs others; it now
386 ignores EPIPE as well.
387
d203e649
PH
388PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
389 (quoted-printable decoding).
390
cc2ed8f7 391PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 392 later the small subsequent patch to fix an introduced bug.
f951fd57 393
ddfcd446
PH
394PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
395
d45b1de8
PH
396PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
397
398PH/08 An error is now given if message_size_limit is specified negative.
399
38a0a95f 400PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 401 to be given (somewhat) arbitrary names.
38a0a95f 402
a2405d83
JJ
403JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
404 in 4.64-PH/09.
405
406JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
407 miscellaneous code fixes
408
6ea85e9a
PH
409PH/10 Added the log_reject_target ACL modifier to specify where to log
410 rejections.
411
26da7e20
PH
412PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
413 hostname. This is wrong, because it relates to the incoming message (and
414 probably the interface on which it is arriving) and not to the outgoing
415 callout (which could be using a different interface). This has been
416 changed to use the value of the helo_data option from the smtp transport
417 instead - this is what is used when a message is actually being sent. If
418 there is no remote transport (possible with a router that sets up host
419 addresses), $smtp_active_hostname is used.
6ea85e9a 420
14aa5a05 421PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 422 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
423 (a) The code assumed that strncpy() returns a negative number on buffer
424 overflow, which isn't the case. Replaced with Exim's string_format()
425 function.
426 (b) There were several signed/unsigned issues. I just did the minimum
427 hacking in of casts. There is scope for a larger refactoring.
428 (c) The code used strcasecmp() which is not a standard C function.
429 Replaced with Exim's strcmpic() function.
430 (d) The code set only $1; it now sets $auth1 as well.
431 (e) A simple test gave the error "authentication client didn't specify
432 service in request". It would seem that Dovecot has changed its
433 interface. Fortunately there's a specification; I followed it and
434 changed what the client sends and it appears to be working now.
435
ff75a1f7
PH
436PH/13 Added $message_headers_raw to provide the headers without RFC 2047
437 decoding.
438
e6f6568e
PH
439PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
440 address A is aliased to B and C, where B exists and C does not. Without
441 -v the output is "A verified" because verification stops after a
442 successful redirection if more than one address is generated. However,
443 with -v the child addresses are also verified. Exim was outputting "A
444 failed to verify" and then showing the successful verification for C,
445 with its parentage. It now outputs "B failed to verify", showing B's
446 parentage before showing the successful verification of C.
447
d6f6e0dc
PH
448PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
449 look up a TXT record in a specific list after matching in a combined
450 list.
451
322050c2
PH
452PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
453 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
454 they consult the DNS. I had assumed they would set it the way they
455 wanted; and indeed my experiments on Linux seem to show that in some
456 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
457 To be on the safe side, however, I have now made the interface to
458 host_find_byname() similar to host_find_bydns(), with an argument
459 containing the DNS resolver options. The host_find_byname() function now
460 sets these options at its start, just as host_find_bydns() does. The smtp
461 transport options dns_qualify_single and dns_search_parents are passed to
462 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
463 of host_find_byname() use the default settings of RES_DEFNAMES
464 (qualify_single) but not RES_DNSRCH (search_parents).
465
08955dd3
PH
466PH/17 Applied (a modified version of) Nico Erfurth's patch to make
467 spool_read_header() do less string testing, by means of a preliminary
468 switch on the second character of optional "-foo" lines. (This is
469 overdue, caused by the large number of possibilities that now exist.
470 Originally there were few.) While I was there, I also converted the
471 str(n)cmp tests so they don't re-test the leading "-" and the first
472 character, in the hope this might squeeze out yet more improvement.
473
1eccaa59
PH
474PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
475 flag allowing group syntax was set by the header_syntax check but not
476 turned off, possible causing trouble later; (2) The flag was not being
477 set at all for the header_verify test, causing "group"-style headers to
478 be rejected. I have now set it in this case, and also caused header_
479 verify to ignore an empty address taken from a group. While doing this, I
480 came across some other cases where the code for allowing group syntax
481 while scanning a header line wasn't quite right (mostly, not resetting
482 the flag correctly in the right place). These bugs could have caused
483 trouble for malformed header lines. I hope it is now all correct.
484
602e59e5
PH
485PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
486 with the "reply" argument non-NULL. The code, however (which originally
487 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
488 but it didn't always do it. This confused somebody who was copying the
489 code for some other use. I have removed all the tests.
490
411ef850
PH
491PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
492 feature that was used to support insecure browsers during the U.S. crypto
493 embargo. It requires special client support, and Exim is probably the
494 only MTA that supported it -- and would never use it because real RSA is
495 always available. This code has been removed, because it had the bad
496 effect of slowing Exim down by computing (never used) parameters for the
497 RSA_EXPORT functionality.
498
7befa435
PH
499PH/21 On the advice of Timo Sirainen, added a check to the dovecot
500 authenticator to fail if there's a tab character in the incoming data
501 (there should never be unless someone is messing about, as it's supposed
502 to be base64-encoded). Also added, on Timo's advice, the "secured" option
503 if the connection is using TLS or if the remote IP is the same as the
504 local IP, and the "valid-client-cert option" if a client certificate has
505 been verified.
506
48da4259 507PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
508 authenticators. This can be used for authorization after authentication
509 succeeds. (In the case of plaintext, it servers for both authentication
510 and authorization.)
511
48da4259
PH
512PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
513 if any retry times were supplied.
514
d1d5595c
PH
515PH/24 Exim crashed if verify=helo was activated during an incoming -bs
516 connection, where there is no client IP address to check. In this
517 situation, the verify now always succeeds.
518
0ef732d9
PH
519PH/25 Applied John Jetmore's -Mset patch.
520
328895cc
PH
521PH/26 Added -bem to be like -Mset, but loading a message from a file.
522
fd700877
PH
523PH/27 In a string expansion for a processed (not raw) header when multiple
524 headers of the same name were present, leading whitespace was being
525 removed from all of them, but trailing whitespace was being removed only
526 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
527 before concatenation. Completely empty headers in a concatenation (as
528 before) are ignored.
fd700877 529
8dce1a6f
PH
530PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
531 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
532
17af4a17
PH
533PH/29 [Removed. This was a change that I later backed out, and forgot to
534 correct the ChangeLog entry (that I had efficiently created) before
535 committing the later change.]
f6c332bd
PH
536
537PH/30 Exim was sometimes attempting to deliver messages that had suffered
538 address errors (4xx response to RCPT) over the same connection as other
539 messages routed to the same hosts. Such deliveries are always "forced",
540 so retry times are not inspected. This resulted in far too many retries
541 for the affected addresses. The effect occurred only when there were more
542 hosts than the hosts_max_try setting in the smtp transport when it had
543 the 4xx errors. Those hosts that it had tried were not added to the list
544 of hosts for which the message was waiting, so if all were tried, there
545 was no problem. Two fixes have been applied:
546
547 (i) If there are any address or message errors in an SMTP delivery, none
548 of the hosts (tried or untried) are now added to the list of hosts
549 for which the message is waiting, so the message should not be a
550 candidate for sending over the same connection that was used for a
551 successful delivery of some other message. This seems entirely
552 reasonable: after all the message is NOT "waiting for some host".
553 This is so "obvious" that I'm not sure why it wasn't done
554 previously. Hope I haven't missed anything, but it can't do any
555 harm, as the worst effect is to miss an optimization.
556
557 (ii) If, despite (i), such a delivery is accidentally attempted, the
558 routing retry time is respected, so at least it doesn't keep
559 hammering the server.
560
c1114884
PH
561PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
562 in ${readsocket because some servers need this prod.
563
7a0743eb
PH
564PH/32 Added some extra debug output when updating a wait-xxx database.
565
0d85fa3f
PH
566PH/33 The hint "could be header name not terminated by colon", which has been
567 given for certain expansion errors for a long time, was not being given
568 for the ${if def:h_colon_omitted{... case.
569
1bf43b78
PH
570PH/34 The spec says: "With one important exception, whenever a domain list is
571 being scanned, $domain contains the subject domain." There was at least
572 one case where this was not true.
573
520de300
PH
574PH/35 The error "getsockname() failed: connection reset by peer" was being
575 written to the panic log as well as the main log, but it isn't really
576 panic-worthy as it just means the connection died rather early on. I have
577 removed the panic log writing for the ECONNRESET error when getsockname()
578 fails.
579
48c7f9e2
PH
580PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
581 runs only) independently of the message's sender address. This meant
582 that, if the 4xx error was in fact related to the sender, a different
583 message to the same recipient with a different sender could confuse
584 things. In particualar, this can happen when sending to a greylisting
585 server, but other circumstances could also provoke similar problems.
586 I have changed the default so that the retry time for these errors is now
587 based a combination of the sender and recipient addresses. This change
588 can be overridden by setting address_retry_include_sender=false in the
589 smtp transport.
590
99ea1c86
PH
591PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
592 remote server are returned as part of bounce messages. This was not
593 happening for LMTP over a pipe (the lmtp transport), but now it is the
594 same for both kinds of LMTP.
595
a2042e78
PH
596PH/38 Despite being documented as not happening, Exim was rewriting addresses
597 in header lines that were in fact CNAMEs. This is no longer the case.
598
4fbcfc2e
PH
599PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
600 and queue runs started by the daemon processed all messages. This has
601 been fixed so that -R and -S can now usefully be given with -q<time>.
602
aa41d2de
PH
603PH/40 Import PCRE release 6.7 (fixes some bugs).
604
af561417
PH
605PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
606
3cc66b45
PH
607PH/42 Give an error if -q is specified more than once.
608
194cc0e4
PH
609PH/43 Renamed the variables $interface_address and $interface_port as
610 $received_ip_address and $received_port, to make it clear that these
611 values apply to message reception, and not to the outgoing interface when
612 a message is delivered. (The old names remain recognized, of course.)
613
a401ddaa
PH
614PH/44 There was no timeout on the connect() call when using a Unix domain
615 socket in the ${readsocket expansion. There now is.
616
4e88a19f
PH
617PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
618 be meaningful with "accept".
619
d7d7b289
SC
620SC/01 Eximstats V1.43
621 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
622
623SC/02 Eximstats V1.44
624 Use a glob alias rather than an array ref in the generated
625 parser. This improves both readability and performance.
626
627SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
628 Collect SpamAssassin and rejection statistics.
629 Don't display local sender or destination tables unless
630 there is data to show.
631 Added average volumes into the top table text output.
632
633SC/04 Eximstats V1.46
634 Collect data on the number of addresses (recipients)
635 as well as the number of messages.
636
637SC/05 Eximstats V1.47
638 Added 'Message too big' to the list of mail rejection
639 reasons (thanks to Marco Gaiarin).
640
641SC/06 Eximstats V1.48
642 Mainlog lines which have GMT offsets and are too short to
643 have a flag are now skipped.
644
645SC/07 Eximstats V1.49 (Alain Williams)
646 Added the -emptyok flag.
647
648SC/08 Eximstats V1.50
649 Fixes for obtaining the IP address from reject messages.
650
0ea2a468
JJ
651JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
652 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
653 whitesspace changes from 4.64-PH/27
654
655JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
656 match 4.64-PH/13
657
658JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
659 are found, allow negative numbers in numeric criteria)
660
661JJ/06 exipick.20061117.2, added new $message_body_missing variable
662
663JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
664 to match changes made in 4.64-PH/43
665
8a10f5a4
PH
666PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
667
30e18802
PH
668PH/47 Put in an explicit test for a DNS lookup of an address record where the
669 "domain" is actually an IP address, and force a failure. This locks out
670 those revolvers/nameservers that support "A-for-A" lookups, in
671 contravention of the specifications.
672
55728a4f
PH
673PH/48 When a host name was looked up from an IP address, and the subsequent
674 forward lookup of the name timed out, the host name was left in
675 $sender_host_name, contrary to the specification.
d7d7b289 676
d7837193
PH
677PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
678 restricted to single-key lookups, Exim was not diagnosing an error if
679 * or *@ was used with a query-style lookup.
680
87054a31
PH
681PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
682
ea2c01d2
MH
683MH/01 local_scan ABI version incremented to 1.1. It should have been updated
684 long ago, but noone interested enough thought of it. Let's just say that
685 the "1.1" means that there are some new functions that weren't there at
686 some point in the past.
687
e4fa6968
PH
688PH/51 Error processing for expansion failure of helo_data from an smtp
689 transport during callout processing was broken.
690
56f5d9bd
PH
691PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
692 tested/used via the -bh/-bhc/-bs options.
693
922e1c28
PH
694PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
695 bug, fixed in subsequent PCRE releases).
696
21eb6e72
PH
697PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
698 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
699
a0540757
PH
700PH/55 Check for a ridiculously long file name in exim_dbmbuild.
701
944e9e9c 702
478be7b0
SC
703Exim version 4.63
704-----------------
705
706SC/01 Use a glob alias rather than an array ref in eximstats generated
707 parser. This improves both readability and performance.
708
709SC/02 Collect SpamAssassin and rejection statistics in eximstats.
710 Don't display local sender or destination tables in eximstats unless
711 there is data to show.
712 Added average volumes into the eximstats top table text output.
713
714SC/03 Collect data on the number of addresses (recipients) as well
715 as the number of messages in eximstats.
716
2b965a65
TF
717TF/01 Correct an error in the documentation for the redirect router. Exim
718 does (usually) call initgroups() when daemonizing.
478be7b0 719
45b91596
PH
720TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
721 with consistent privilege compared to when running as a daemon.
478be7b0 722
c59f5781
TF
723TF/03 Note in the spec that $authenticated_id is not set for local
724 submissions from trusted users.
725
90fc3069
TF
726TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
727 Thanks to Dean Brooks <dean@iglou.com> for the patch.
728
6083aca0
TF
729TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
730 by adding some example configuration directives to the default
731 configuration file. A little bit of work is required to uncomment the
732 directives and define how usernames and passwords are checked, but
733 there is now a framework to start from.
734
765b530f
PH
735PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
736 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
737 without this. I don't know how relevant this is to other LDAP libraries.
738
4e167a8c
PH
739PH/02 Add the verb name to the "unknown ACL verb" error.
740
4608d683
PH
741PH/03 Magnus Holmgren's patch for filter_prepend_home.
742
b8dc3e4a
PH
743PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
744
5418e93b
PH
745PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
746 directory not expanded when it should be if an expanded home directory
747 was set for the address (which is overridden by the transport).
748
b4a9bda2
PH
749PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
750 libradius.
751
45b91596
PH
752PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
753 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
754 because it is too late at that time, and has no effect.
755
5547e2c5
PH
756PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
757 security issue with \' (bugzilla #107). I could not use the
758 PQescapeStringConn() function, because it needs a PGconn value as one of
759 its arguments.
760
dbcef0ea
PH
761PH/08 When testing addresses using -bt, indicate those final addresses that
762 are duplicates that would not cause an additional delivery. At least one
763 person was confused, thinking that -bt output corresponded to deliveries.
764 (Suppressing duplicates isn't a good idea as you lose the information
765 about possibly different redirections that led to the duplicates.)
766
25257489
PH
767PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
768 systems where poll() doesn't work, in particular OS X.
769
c816d124
PH
770PH/10 Added more information to debugging output for retry time not reached.
771
a9ccd69a
PH
772PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
773 operations in malware.c.
774
75fa1910
PH
775PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
776 signatures.
777
a7d7aa58
PH
778PH/13 If write_rejectlog was set false when logging was sent to syslog with
779 syslog_duplication set false, log lines that would normally be written
780 both the the main log and to the reject log were not written to syslog at
781 all.
782
42119b09
PH
783PH/14 In the default configuration, change the use of "message" in ACL warn
784 statements to "add_header".
785
41609df5
PH
786PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
787 not followed by a command (e.g. "seen endif").
788
a5bd321b
PH
789PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
790 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
791 latter.
792
e85a7ad5 793PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
794 so that it is now:
795
e85a7ad5
PH
796 ${if or { \
797 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
798 { match{$h_precedence:}{(?i)bulk|list|junk} } \
799 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
800 }{no}{yes}}
801
e85a7ad5
PH
802 The Auto-Submitted: and various List- headers are standardised, whereas I
803 don't think Precedence: ever was.
5dff5817 804
d8fe1c03
PH
805PH/18 Refactored debugging code in route_finduser() to show more information,
806 in particular, the error code if getpwnam() issues one.
807
16282d2b
PH
808PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
809 This is apparently needed in addition to the PH/07 change above to avoid
810 any possible encoding problems.
811
35d40a98
PH
812PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
813 but not after initializing Perl.
814
034d99ab
PH
815PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
816 output them only if debugging. By default they are written stderr,
817 apparently, which is not desirable.
818
6ec97b1b
PH
819PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
820 queries.
821
e22ca4ac
JJ
822JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
823 --not options
824
825JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
826
33d73e3b
PH
827PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
828 authenticated or an ident call has been made. Suppress the default
829 values for $authenticated_id and $authenticated_sender (but permit -oMai
830 and -oMas) when testing with -bh.
831
9ecb03f3
PH
832PH/24 Re-jigged the order of the tests in the default configuration so that the
833 tests for valid domains and recipients precede the DNS black list and CSA
834 tests, on the grounds that those ones are more expensive.
835
084efe8d
PH
836PH/25 Exim was not testing for a space following SMTP commands such as EHLO
837 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
838 This bug exists in every version of Exim that I still have, right back to
839 0.12.
840
366fc9f0
PH
841PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
842 However, an attempt to turn on case-sensitivity in a regex key by
843 including (?-i) didn't work because the subject string was already
844 lowercased, and the effects were non-intuitive. It turns out that a
845 one-line patch can be used to allow (?-i) to work as expected.
846
c59f5781 847
c887c79e
TF
848Exim version 4.62
849-----------------
850
851TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
852 other effects) broke the use of negated acl sub-conditions.
853
1cce3af8
PH
854PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
855 patch).
856
afb3eaaf
PH
857PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
858 "Deny" causes Exim to reject the incoming connection with a 554 error.
859 Unfortunately, if there is a major crisis, such as a disk failure,
860 tcp-wrappers gives "deny", whereas what one would like would be some
861 kind of temporary error. A kludge has been added to help with this.
862 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
863 554 error is used if errno is still zero or contains ENOENT (which occurs
864 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
865 451 error is used.
866
e173618b
PH
867PH/03 Add -lutil to the default FreeBSD LIBS setting.
868
dd16e114
PH
869PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
870 errors. Otherwise a message that provokes a temporary error (when other
871 messages do not) can cause a whole host to time out.
872
f7fd3850
PH
873PH/05 Batch deliveries by appendfile and pipe transports did not work when the
874 addresses were routed directly to files or pipes from a redirect router.
875 File deliveries just didn't batch; pipe deliveries might have suffered
876 odd errors.
877
d87df92c
PH
878PH/06 A failure to get a lock for a hints database would erroneously always say
879 "Failed to get write lock", even when it was really a read lock.
880
7e9f683d
PH
881PH/07 The appendfile transport was creating MBX lock files with a fixed mode
882 of 0600. This has been changed to use the value of the lockfile_mode
883 option (which defaults to 0600).
884
bfad5236
PH
885PH/08 Applied small patch from the Sieve maintainer.
886
01c490df
PH
887PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
888 folder from quota calculations, a direct delivery into this folder messed
889 up the contents of the maildirsize file. This was because the regex was
890 used only to exclude .Trash (or whatever) when the size of the mailbox
891 was calculated. There was no check that a delivery was happening into an
892 excluded directory. This bug has been fixed by ignoring all quota
893 processing for deliveries into excluded directories.
894
d6629cdc
PH
895PH/10 Added the maildirfolder_create_regex option to appendfile.
896
1cce3af8 897
214e2000
PH
898Exim version 4.61
899-----------------
900
901PH/01 The code for finding all the local interface addresses on a FreeBSD
902 system running IPv6 was broken. This may well have applied to all BSD
903 systems, as well as to others that have similar system calls. The broken
904 code found IPv4 interfaces correctly, but gave incorrect values for the
905 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
906 that it would not match correctly against @[] and not recognize the IPv6
907 addresses as local.
908
f9daeae0
PH
909PH/02 The ipliteral router was not recognizing addresses of the form user@
910 [ipv6:....] because it didn't know about the "ipv6:" prefix.
911
7e66e54d
PH
912PH/03 Added disable_ipv6.
913
c8ea1597
PH
914PH/04 Changed $reply_address to use the raw form of the headers instead of the
915 decoded form, because it is most often used to construct To: headers
916 lines in autoreplies, and the decoded form may well be syntactically
917 invalid. However, $reply_address has leading white space removed, and all
918 newlines turned into spaces so that the autoreply transport does not
919 grumble.
920
911f6fde
PH
921PH/05 If group was specified without a user on a router, and no group or user
922 was specified on a transport, the group from the router was ignored.
923
47ca6d6c
PH
924PH/06 Increased the number of ACL variables to 20 of each type, and arranged
925 for visible compile-time settings that can be used to change these
926 numbers, for those that want even more. Backwards compatibility with old
927 spool files has been maintained. However, going back to a previous Exim
928 release will lost any variables that are in spool files.
929
ed0e9820
PH
930PH/07 Two small changes when running in the test harness: increase delay when
931 passing a TCP/IP connection to a new process, in case the original
932 process has to generate a bounce, and remove special handling of
933 127.0.0.2 (sic), which is no longer necessary.
934
eff37e47
PH
935PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
936 be the same on different OS.
937
1921d2ea
PH
938PH/09 Moved a debug statement in filter processing to avoid a race problem when
939 testing.
940
b3f69ca8
JJ
941JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
942 whether --show-vars was specified or not
943
944JJ/02 exipick: Added support for new ACL variable spool format introduced
945 in 4.61-PH/06
946
424a1c63
PH
947PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
948 syntactically invalid From: or Reply-to: line, and a filter used this to
949 generate an autoreply, and therefore failed to obtain an address for the
950 autoreply, Exim could try to deliver to a non-existent relative file
951 name, causing unrelated and misleading errors. What now happens is that
952 it logs this as a hard delivery error, but does not attempt to create a
953 bounce message.
954
7a100415
PH
955PH/11 The exinext utility has a -C option for testing purposes, but although
956 the given file was scanned by exinext itself; it wasn't being passed on
957 when Exim was called.
958
19b9dc85
PH
959PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
960 an end-of-file indication when reading a command response.
961
309bd837
PH
962PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
963 compiled. In many other places in Exim, IPv6 addresses are always
964 recognized, so I have changed this. It also means that IPv4 domain
965 literals of the form [IPV4:n.n.n.n] are now always recognized.
966
59e82a2a
PH
967PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
968 used if the router is not running as root, for example, when verifying at
969 ACL time, or when using -bh. The debugging output from this situation was
970 non-existent - all you got was a failure to exec. I have made two
971 changes:
972
973 (a) Failures to set uid/gid, the current directory, or a process leader
974 in a subprocess such as that created by queryprogram now generate
975 suitable debugging ouput when -d is set.
976
977 (b) The queryprogram router detects when it is not running as root,
978 outputs suitable debugging information if -d is set, and then runs
979 the subprocess without attempting to change uid/gid.
980
9edc04ce
PH
981PH/15 Minor change to Makefile for building test_host (undocumented testing
982 feature).
983
1349e1e5
PH
984PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
985 additional section of a DNS packet that returns MX or SRV records.
986 Instead, it always explicitly searches for A/AAAA records. This avoids
987 major problems that occur when a DNS server includes only records of one
988 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
989 fixed another bug: if SRV records were looked up and the corresponding
990 address records were *not* found in the additional section, the port
991 values from the SRV records were lost.
992
ea49d0e1
PH
993PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
994 using the correct key (the original address) when searching the retry
995 rules in order to find which one to use for generating the retry hint.
996
064a94c9
PH
997PH/18 If quota_warn_message contains a From: header, Exim now refrains from
998 adding the default one. Similarly, if it contains a Reply-To: header, the
999 errors_reply_to option, if set, is not used.
1000
727071f8
PH
1001PH/19 When calculating a retry time, Exim used to measure the "time since
1002 failure" by looking at the "first failed" field in the retry record. Now
1003 it does not use this if it is later than than the arrival time of the
1004 message. Instead it uses the arrival time. This makes for better
1005 behaviour in cases where some deliveries succeed, thus re-setting the
1006 "first failed" field. An example is a quota failure for a huge message
1007 when small messages continue to be delivered. Without this change, the
1008 "time since failure" will always be short, possible causing more frequent
1009 delivery attempts for the huge message than are intended.
dd16e114 1010 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1011
f78eb7c6
PH
1012PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1013 $1, $2, $3) because the numerical variables can be reset during some
1014 expansion items (e.g. "match"), thereby losing the authentication data.
1015
21c28500
PH
1016PH/21 Make -bV show the size of off_t variables so that the test suite can
1017 decide whether to run tests for quotas > 2G.
1018
1019PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1020 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1021 filecount value is greater than 2G or if a quota value is greater than 2G
1022 on a system where the size of off_t is not greater than 4, a panic error
1023 is given.
1024
1688f43b
PH
1025PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1026 never match. The debug and -bh output now contains an explicit error
1027 message indicating a malformed IPv4 address or mask.
1028
1029PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1030 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1031 PH/23 above applies.
1032
9675b384
PH
1033PH/25 Do not write to syslog when running in the test harness. The only
1034 occasion when this arises is a failure to open the main or panic logs
1035 (for which there is an explicit test).
1036
6a3f1455
PH
1037PH/26 Added the /no_tell option to "control=freeze".
1038
dac79d3e
PH
1039PH/27 If a host name lookup failed very early in a connection, for example, if
1040 the IP address matched host_lookup and the reverse lookup yielded a name
1041 that did not have a forward lookup, an error message of the form "no IP
1042 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1043 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1044
5977a0b3
PH
1045PH/28 An enabling patch from MH: add new function child_open_exim2() which
1046 allows the sender and the authenticated sender to be set when
1047 submitting a message from within Exim. Since child_open_exim() is
1048 documented for local_scan(), the new function should be too.
1049
c91535f3
PH
1050PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1051 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1052 results in an empty string is now treated as unset.
1053
0d46a8c8
PH
1054PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1055
278c6e6c
PH
1056PH/31 Added sender_verify_fail logging option.
1057
2cbb4081
PH
1058PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1059 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1060 tidied the source and removed it altogether.
1061
3eef829e
PH
1062PH/33 When a queue run was abandoned because the load average was too high, a
1063 log line was always written; now it is written only if the queue_run log
1064 selector is set. In addition, the log line for abandonment now contains
1065 information about the queue run such as the pid. This is always present
1066 in "start" and "stop" lines but was omitted from the "abandon" line.
1067
1ab95fa6
PH
1068PH/34 Omit spaces between a header name and the colon in the error message that
1069 is given when verify = headers_syntax fails (if there are lots of them,
1070 the message gets confusing).
1071
230205fc
PH
1072PH/35 Change the default for dns_check_names_pattern to allow slashes within
1073 names, as there are now some PTR records that contain slashes. This check
1074 is only to protect against broken name servers that fall over on strange
1075 characters, so the fact that it applies to all lookups doesn't matter.
1076
75e0e026
PH
1077PH/36 Now that the new test suite is complete, we can remove some of the
1078 special code in Exim that was needed for the old test suite. For example,
1079 sorting DNS records because real resolvers return them in an arbitrary
1080 order. The new test suite's fake resolver always returns records in the
1081 same order.
1082
1083PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1084 bounces) except when queue_only is set, to avoid logging races between
1085 the different processes.
1086
145396a6
PH
1087PH/38 Panic-die if .include specifies a non-absolute path.
1088
3cd34f13
PH
1089PH/39 A tweak to the "H" retry rule from its user.
1090
11121d3d
JJ
1091JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1092 a label. They prevented compilation on older perls.
1093
1094JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1095 a warning to be raised on newish perls.
1096
1097JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1098 on queue. Changes to match documented behaviour of showing count of
1099 messages matching specified criteria.
1100
8def5aaf
PH
1101PH/40 Changed the default ident timeout from 30s to 5s.
1102
929ba01c
PH
1103PH/41 Added support for the use of login_cap features, on those BSD systems
1104 that have them, for controlling the resources used by pipe deliveries.
1105
2632889e
PH
1106PH/42 The content-scanning code uses fopen() to create files in which to put
1107 message data. Previously it was not paying any attention to the mode of
1108 the files. Exim runs with umask(0) because the rest of the code creates
1109 files with open(), and sets the required mode explicitly. Thus, these
1110 files were ending up world-writeable. This was not a big issue, because,
1111 being within the spool directory, they were not world-accessible. I have
1112 created a function called modefopen, which takes an additional mode
1113 argument. It sets umask(777), creates the file, chmods it to the required
1114 mode, then resets the umask. All the relevant calls to fopen() in the
1115 content scanning code have been changed to use this function.
1116
944a9c55
PH
1117PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1118 to 24 hours. This avoids potential overflow problems when processing G
1119 and H retry rules. I suspect nobody ever tinkers with this value.
1120
4a23603b
PH
1121PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1122
4730f942
PH
1123PH/45 When the plaintext authenticator is running as a client, the server's
1124 challenges are checked to ensure they are valid base64 strings. By
1125 default, the authentication attempt is cancelled if an invalid string is
1126 received. Setting client_ignore_invalid_base64 true ignores these errors.
1127 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1128 they are received. Thus, the responses can be made to depend on the
1129 challenges. If an invalid string is ignored, an empty string is placed in
1130 the variable.
1131
30dba1e6
PH
1132PH/46 Messages that are created by the autoreply transport now contains a
1133 References: header, in accordance with RFCs 2822 and 3834.
1134
382afc6b
PH
1135PH/47 Added authenticated_sender_force to the smtp transport.
1136
a86229cf
PH
1137PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1138
50c99ba6
PH
1139PH/49 Installed latest patch from the Sieve maintainer.
1140
d35e429d
PH
1141PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1142 was also set, the appendfile transport was unnecessarily scanning a
1143 directory of message files (e.g. for maildir delivery) to find the count
1144 of files (along with the size), even though it did not need this
1145 information. It now does the scan only if it needs to find either the
1146 size of the count of files.
1147
f90d018c
PH
1148PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1149
75def545
PH
1150PH/52 Two bugs concerned with error handling when the smtp transport is
1151 used in LMTP mode:
1152
1153 (i) Exim was not creating retry information for temporary errors given
1154 for individual recipients after the DATA command when the smtp transport
1155 was used in LMTP mode. This meant that they could be retried too
1156 frequently, and not timed out correctly.
1157
1158 (ii) Exim was setting the flag that allows error details to be returned
1159 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1160 recipients that were returned after the DATA command.
1161
1162PH/53 This is related to PH/52, but is more general: for any failing address,
1163 when detailed error information was permitted to be returned to the
1164 sender, but the error was temporary, then after the final timeout, only
1165 "retry timeout exceeded" was returned. Now it returns the full error as
1166 well as "retry timeout exceeded".
1167
c46782ef
PH
1168PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1169 do this, and (what is worse) MTAs that accept it.
1170
71fafd95
PH
1171PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1172 will now be deprecated.
1173
2c5db4fd
PH
1174PH/56 New os.c-cygwin from the Cygwin maintainer.
1175
9cf6b11a
JJ
1176JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1177 formats (previously only available in exim formats via -bpr, -bpru,
1178 and -bpra. Now also available in native and exiqgrep formats)
1179
1180JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1181 with very large, slow to parse queues
1182
1183JJ/08 exipick: added ! as generic prefix to negate any criteria format
1184
1185JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1186
898d150f
PH
1187PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1188 responses to authentication challenges, though it was showing the
1189 challenges; (ii) I've removed the CR characters from the debug output for
1190 SMTP output lines.
1191
46218253
PH
1192PH/58 Allow for the insertion of a newline as well as a space when a string
1193 is turned into more than one encoded-word during RFC 2047 encoding. The
1194 Sieve code now uses this.
1195
e97957bc
PH
1196PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1197 data_4xx, lost_connection, tls_required.
1198
81e509d7
PH
1199PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1200 message was being sent as an SMTP response.
1201
3d240ff7
PH
1202PH/61 Add -l and -k options to exicyclog.
1203
b37c4101
PH
1204PH/62 When verifying, if an address was redirected to one new address, so that
1205 verification continued, and the new address failed or deferred after
1206 having set something in $address_data, the value of $address_data was not
1207 passed back to the ACL. This was different to the case when no
1208 redirection occurred. The value is now passed back in both cases.
1209
79378e0f
PH
1210PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1211 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1212 use login_cap.h, so on its own it isn't the distinguishing feature. The
1213 new name refers directly to the setclassresources() function.
1214
e49c7bb4
PH
1215PH/65 Added configuration files for NetBSD3.
1216
d114ec46
PH
1217PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1218
f3d7df6c
PH
1219PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1220 is preferred over IPv4.
1221
715ab376
PH
1222PH/68 The bounce_return_message and bounce_return_body options were not being
1223 honoured for bounces generated during the reception of non-SMTP messages.
1224 In particular, this applied to messages rejected by the ACL. This bug has
1225 been fixed. However, if bounce_return_message is true and bounce_return_
1226 body is false, the headers that are returned for a non-SMTP message
1227 include only those that have been read before the error was detected.
1228 (In the case of an ACL rejection, they have all been read.)
1229
6b31b150
PH
1230PH/69 The HTML version of the specification is now built in a directory called
1231 spec_html instead of spec.html, because the latter looks like a path with
1232 a MIME-type, and this confuses some software.
1233
1234PH/70 Catch two compiler warnings in sieve.c.
1235
d515a917
PH
1236PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1237 function verify_get_ident() calls ip_connect() to connect a socket, but
1238 if the "connect()" function timed out, ip_connect() used to close the
1239 socket. However, verify_get_ident() also closes the socket later, and in
1240 between Exim writes to the log, which may get opened at this point. When
1241 the socket was closed in ip_connect(), the log could get the same file
1242 descriptor number as the socket. This naturally causes chaos. The fix is
1243 not to close the socket in ip_connect(); the socket should be closed by
1244 the function that creates it. There was only one place in the code where
1245 this was missing, in the iplookup router, which I don't think anybody now
1246 uses, but I've fixed it anyway.
1247
9b8fadde
PH
1248PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1249 well as to direct DNS lookups. Otherwise the handling of names in host
1250 lists is inconsistent and therefore confusing.
1251
214e2000 1252
5de37277
PH
1253Exim version 4.60
1254-----------------
1255
cc38ddbf
PH
1256PH/01 Two changes to the default runtime configuration:
1257
1258 (1) Move the checks for relay_from_hosts and authenticated clients from
1259 after to before the (commented out) DNS black list checks.
1260
1261 (2) Add control=submission to the relay_from_hosts and authenticated
1262 clients checks, on the grounds that messages accepted by these
1263 statements are most likely to be submissions.
5de37277 1264
72fdd6ae
PH
1265PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1266
1267 (1) Generate an error if the third argument for the ${prvs expansion is
1268 not a single digit.
1269
1270 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1271 string.
1272
1273 (3) Reset the variables that are obtained from the first argument of
1274 ${prvscheck and used in the second argument before leaving the code,
1275 because their memory is reclaimed, so using them afterwards may do
1276 silly things.
1277
1278 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1279 one (it's much easier than Tom thought :-).
1280
1281 (5) Because of (4), we can now allow for the use of $prvscheck_result
1282 inside the third argument.
cb9328de 1283
cb741023
PH
1284PH/03 For some reason, the default setting of PATH when running a command from
1285 a pipe transport was just "/usr/bin". I have changed it to
1286 "/bin:/usr/bin".
1287
f174f16e
PH
1288PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1289 anything to be listed in the output from -bV.
b2f5a032 1290
c25242d7
PH
1291PH/05 When a filter generated an autoreply, the entire To: header line was
1292 quoted in the delivery log line, like this:
1293
1294 => >A.N.Other <ano@some.domain> <original@ddress> ...
1295
1296 This has been changed so that it extracts the operative address. There
1297 may be more than one such address. If so, they are comma-separated, like
1298 this:
1299
1300 => >ano@some.domain,ona@other.domain <original@ddress> ...
1301
82c19f95
PH
1302PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1303 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1304 not being looked up in the rDNS to get a host name, Exim was showing the
1305 IP address twice in Received: lines, even though the IP addresses were
1306 identical. For example:
1307
1308 Received: from [1.2.3.4] (helo=[1.2.3.4])
1309
1310 However, if the real host name was known, it was omitting the HELO data
1311 if it matched the actual IP address. This has been tidied up so that it
1312 doesn't show the same IP address twice.
1313
d7ffbc12
PH
1314PH/07 When both +timestamp and +memory debugging was on, the value given by
1315 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1316 called by the debug printing, thereby overwriting the timestamp buffer.
1317 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1318
9f526266
PH
1319PH/08 When the original message was included in an autoreply transport, it
1320 always said "this is a copy of the message, including all the headers",
1321 even if body_only or headers_only was set. It now gives an appropriate
1322 message.
1323
87fcc8b9
PH
1324PH/09 Applied a patch from the Sieve maintainer which:
1325
1326 o fixes some comments
1327 o adds the (disabled) notify extension core
1328 o adds some debug output for the result of if/elsif tests
1329 o points to the current vacation draft in the documentation
1330 and documents the missing references header update
1331
1332 and most important:
1333
1334 o fixes a bug in processing the envelope test (when testing
1335 multiple envelope elements, the last element determinted the
1336 result)
1337
456682f5
PH
1338PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1339 Electronic Mail") by including:
1340
1341 Auto-submitted: auto-generated
1342
1343 in the messages that it generates (bounce messages and others, such as
1344 warnings). In the case of bounce messages for non-SMTP mesages, there was
1345 also a typo: it was using "Auto_submitted" (underscore instead of
1346 hyphen). Since every message generated by Exim is necessarily in response
1347 to another message, thes have all been changed to:
1348
1349 Auto-Submitted: auto-replied
1350
1351 in accordance with these statements in the RFC:
1352
1353 The auto-replied keyword:
1354
1355 - SHOULD be used on messages sent in direct response to another
1356 message by an automatic process,
1357
1358 - MUST NOT be used on manually-generated messages,
1359
1360 - MAY be used on Delivery Status Notifications (DSNs) and Message
1361 Disposition Notifications (MDNs),
1362
1363 - MUST NOT be used on messages generated by automatic or periodic
1364 processes, except for messages which are automatic responses to
1365 other messages.
1366
3e46c1aa
PH
1367PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1368 to the default Received: header definition.
456682f5 1369
49826d12
PH
1370PH/12 Added log selector acl_warn_skipped (default on).
1371
eba0c039
PH
1372PH/13 After a successful wildlsearch lookup, discard the values of numeric
1373 variables because (a) they are in the wrong storage pool and (b) even if
1374 they were copied, it wouldn't work properly because of the caching.
1375
a0d6ba8a
PH
1376PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1377 checking when decoding. Apparently there are clients that generate
1378 overlong encoded strings. Why am I not surprised?
1379
f0917727
PH
1380PH/15 If the first argument of "${if match_address" was not empty, but did not
1381 contain an "@" character, Exim crashed. Now it writes a panic log message
1382 and treats the condition as false.
1383
096fee00
PH
1384PH/16 In autoreply, treat an empty string for "once" the same as unset.
1385
024bd3c2
PH
1386PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1387 extension "envelope-auth". The code is finished and in agreement with
1388 other implementations, but there is no documentation so far and in fact,
1389 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1390 not changing the active code.
1391
1392 Print executed "if" and "elsif" statements when debugging is used. This
1393 helps a great deal to understand what a filter does.
1394
1395 Document more things not specified clearly in RFC3028. I had all this
1396 sorted out, when out of a sudden new issues came to my mind. Oops."
1397
df199fec
PH
1398PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1399 (Bugzilla #53).
1400
d27f1df3
PH
1401PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1402 canonical form (as documented). However, after a host name lookup from
1403 the IP address, check_host() was doing a simple string comparison with
1404 addresses acquired from the DNS when checking that the found name did
1405 have the original IP as one of its addresses. Since any found IPv6
1406 addresses are likely to be in abbreviated form, the comparison could
1407 fail. Luckily, there already exists a function for doing the comparison
1408 by converting both addresses to binary, so now that is used instead of
1409 the text comparison.
1410
96776534
PH
1411PH/20 There was another similar case to PH/19, when a complete host name was
1412 given in a host list; looking up its IP address could give an abbreviated
1413 form, whereas the current host's name might or might not be abbreviated.
1414 The same fix has been applied.
1415
5de37277 1416
9a799bc0
PH
1417Exim version 4.54
1418-----------------
1419
1420PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1421 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1422 It now does.
1423
99a4b039
PH
1424PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1425 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1426
1427PH/03 Typo: missing ".o" in src/pcre/Makefile.
1428
4b233853
PH
1429PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1430 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1431 Also, for "Auto-Submitted", treat anything other than "no" as
1432 non-personal, in accordance with RFC 3834. (Previously it treated
1433 anything starting "auto-" as non-personal.)
1434
8857ccfd
PH
1435TF/01 The control=submission/name=... option had a problem with syntax
1436 errors if the name included a slash character. The /name= option
1437 now slurps the rest of the string, so it can include any characters
1438 but it must come last in the list of options (after /sender_retain
1439 or /domain=).
1440
433a2980
PH
1441PH/05 Some modifications to the interface to the fake nameserver for the new
1442 testing suite.
1443
3e46c1aa 1444
9a799bc0 1445
e3a311ba
TK
1446Exim version 4.53
1447-----------------
1448
1449TK/01 Added the "success_on_redirect" address verification option. See
1450 NewStuff for rationale and an example.
1451
13b685f9
PH
1452PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1453
395ff96d
PH
1454PH/02 Patch to exigrep to allow it to work on syslog lines.
1455
5b68f6e4
PH
1456PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1457 fread() to skip over the body file's header line, because in Cygwin the
1458 header line is locked and is inaccessible.
1459
1ab52c69
PH
1460PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1461 co-exist for some time) to make it clear that it is the Exim ID that is
1462 referenced, not the Message-ID: header line.
1463
b07e6aa3
PH
1464PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1465 string_format() function, because snprintf() does not exist on all
1466 operating systems.
1467
254e032f
PH
1468PH/06 The use of forbid_filter_existstest now also locks out the use of the
1469 ${stat: expansion item.
1470
3af76a81
PH
1471PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1472 protocol synchronization error", to keep the pedants happy.
1473
2548ba04
PH
1474PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1475 well as for IRIX systems, when gcc is being used. See the host.c source
1476 file for comments.
1477
b6c6011d
PH
1478PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1479
cf39cf57
PH
1480PH/10 Named domain lists were not working if used in a queue_smtp_domains
1481 setting.
1482
f1513293
PH
1483PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1484 transport and to the smtp transport in LMTP mode.
1485
727549a4
PH
1486TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1487
af46795e
PH
1488PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1489 run a filter in a subprocess. This could lead to confusion in subsequent
1490 lookups in the parent process. There should also be a search_tidyup() at
1491 the end of the subprocess.
1492
d7b47fd0
PH
1493PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1494 only if the host matched helo_try_verify_hosts, which caused the
1495 verification to occur when the EHLO/HELO command was issued. The ACL just
1496 tested the remembered result. Now, if a previous verification attempt has
1497 not happened, "verify = helo" does it there and then.
1498
ee744174
JJ
1499JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1500
b582ab87
PH
1501TK/03 Fix log output including CR from clamd.
1502
41a13e0a
PH
1503PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1504 exist provoked a memory error which could cause a segfault.
1505
f625cc5a
PH
1506PH/15 Installed PCRE 6.2
1507
1508PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1509
21f7af35
PH
1510PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1511 of the problem. Specifically, suggested +O2 rather than +O1 for the
1512 HP-UX compiler.
1513
31480e42
PH
1514PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1515
2d280592
PH
1516PH/20 If a delivery was routed to a non-standard port by means of an SRV
1517 record, the port was not correctly logged when the outgoing_port log
1518 selector was set (it logged the transort's default port).
1519
7cd1141b
PH
1520PH/21 Added support for host-specific ports to manualroute, queryprogram,
1521 fallback_hosts, and "hosts" in the smtp transport.
1522
1523PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1524 host errors such as "Connection refused".
1525
750af86e
PH
1526PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1527 authentication with radiusclient 0.4.9:
1528
1529 - Error returned from rc_read_config was caught wrongly
1530 - Username/password not passed on to radius server due to wrong length.
1531
1532 The presumption is that some radiusclient API changes for 4.51/PH/17
1533 were not taken care of correctly. The code is still untested by me (my
1534 Linux distribution still has 0.3.2 of radiusclient), but it was
1535 contributed by a Radius user.
1536
1537PH/24 When doing a callout, the value of $domain wasn't set correctly when
1538 expanding the "port" option of the smtp transport.
1539
4304270b
TK
1540TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1541 while reading a MIME header. Thanks to Tom Hughes for a patch.
1542
750af86e
PH
1543PH/24 Include config.h inside local_scan.h so that configuration settings are
1544 available.
1545
64ffc24f
PH
1546PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1547 that in an ACL for RCPT (for example), you can examine exactly what was
1548 received.
1549
5dd9625b
PH
1550PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1551 commands, but it was not correctly comparing the address with the actual
1552 client host address. Thus, it would show the EHLO address in Received:
1553 header lines when this was not necessary.
1554
5591031b
PH
1555PH/27 Added the % operator to ${eval:}.
1556
ba18e66a
PH
1557PH/28 Exim tries to create and chdir to its spool directory when it starts;
1558 it should be ignoring failures (because with -C, for example, it has lost
1559 privilege). It wasn't ignoring creation failures other than "already
1560 exists".
1561
9cec981f
PH
1562PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1563 -bV or -d is used.
1564
aa2b5c79
PH
1565PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1566 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1567 too many continuations, the temporary file was not being removed, and the
1568 return code was incorrect.
aa2b5c79 1569
48a53b7f
PH
1570PH/31 Missing "BOOL" in function definition in filtertest.c.
1571
1c59d63b
PH
1572PH/32 Applied Sieve patches from the maintainer.
1573
671012da
TK
1574TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1575
1509d3a8
PH
1576PH/33 Added "verify = not_blind".
1577
1578PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1579 Local/Makefile (with some defaults set). These are used in built scripts
1580 such as exicyclog, but they have never been used in the exim_install
1581 script (though there are many overriding facilities there). I have
1582 arranged that the exim_install script now takes note of these two
1583 settings.
1584
1585PH/35 Installed configuration files for Dragonfly.
1586
2fe1a124
PH
1587PH/36 When a locally submitted message by a trusted user did not contain a
1588 From: header, and the sender address was obtained from -f or from an SMTP
1589 MAIL command, and the trusted user did not use -F to supply a sender
1590 name, $originator_name was incorrectly used when constructing a From:
1591 header. Furthermore, $originator_name was used for submission mode
1592 messages from external hosts without From: headers in a similar way,
1593 which is clearly wrong.
1594
8800895a
PH
1595PH/37 Added control=suppress_local_fixups.
1596
ccfdb010
PH
1597PH/38 When log_selector = +received_sender was set, and the addition of the
1598 sender made the log line's construction buffer exactly full, or one byte
1599 less than full, an overflow happened when the terminating "\n" was
1600 subsequently added.
1601
1130bfb0
PH
1602PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1603 when the result of a list match is failure because a DNS lookup failed.
1604
ebcb507f
PH
1605PH/40 RM_COMMAND is now used in the building process.
1606
c35e155c
PH
1607PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1608 the "build-* directories that it finds.
1609
95d1f782
PH
1610PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1611 address in a domain literal was a prefix of an interface address.
1612
fd6de02e
PH
1613PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1614 when verifying a sender address, unless rewrite_headers is false.
1615
58de37c5
PH
1616PH/44 Wrote a long comment about why errors_to addresses are verified as
1617 recipients, not senders.
1618
261cf466
TF
1619TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1620 the ratelimit ACL was added.
1621
3ee512ff
PH
1622PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1623
e08c430f
PH
1624PH/46 Added extra information about PostgreSQL errors to the error string.
1625
bef5a11f
PH
1626PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1627 avoiding the need to install special zones in a real server. This is
1628 backwards compatible; if it can't find the fake resolver, it drops back.
1629 Thus, both old and new test suites can be run.
1630
7546de58
TF
1631TF/02 Added util/ratelimit.pl
1632
e5d5a95f
TF
1633TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1634 clock is set back in time.
1635
2e88a017
TF
1636TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1637 Candler <B.Candler@pobox.com>.
1638
a5f65aa4
TF
1639TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1640 OK for addresses that are the result of redirections.
1641
e7726cbf
PH
1642PH/48 A number of further additions for the benefit of the new test suite,
1643 including a fake gethostbyname() that interfaces to the fake DNS resolver
1644 (see PH/47 above).
1645
a7fdad5b
TF
1646TF/06 The fix for widen_domains has also been applied to qualify_single and
1647 search_parents which are the other dnslookup options that can cause
1648 header rewrites.
1649
6af56900
PH
1650PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1651 type ("H").
1652
0925ede6
PH
1653PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1654
66afa403
TF
1655TF/07 Exim produced the error message "an SRV record indicated no SMTP
1656 service" if it encountered an MX record with an empty target hostname.
1657 The message is now "an MX or SRV record indicated no SMTP service".
1658
0154e85a
TF
1659TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1660 if the DNS of the sending site is misconfigured. This is quite a
1661 common situation. This change restores the behaviour of treating a
1662 helo verification defer as a failure.
1663
16f12c76
PH
1664PH/51 If self=fail was set on a router, the bounce message did not include the
1665 actual error message.
1666
bbe902f0 1667
e5a9dba6
PH
1668Exim version 4.52
1669-----------------
1670
1671TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1672
22c3b60b
PH
1673PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1674 command itself ended in error, the underlying message about the transport
1675 filter timeout was being overwritten with the pipe command error. Now the
1676 underlying error message should be appended to the second error message.
1677
06a9b4b5
PH
1678TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1679
c1ac6996
PH
1680PH/02 Reduce the amount of output that "make" produces by default. Full output
1681 can still be requested.
1682
9c7a242c
PH
1683PH/03 The warning log line about a condition test deferring for a "warn" verb
1684 was being output only once per connection, rather than after each
1685 occurrence (because it was using the same function as for successful
1686 "warn" verbs). This seems wrong, so I have changed it.
1687
87ba3f5f
PH
1688TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1689 it should not have, which might have caused a crash in the right
1690 circumstances, but probably never did.
1691
1692PH/04 Installed a modified version of Tony Finch's patch to make submission
1693 mode fix the return path as well as the Sender: header line, and to
1694 add a /name= option so that you can make the user's friendly name appear
1695 in the header line.
1696
29aba418
TF
1697TF/03 Added the control = fakedefer ACL modifier.
1698
fe0dab11
TF
1699TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1700 Mark Lowes for thorough testing.
870f6ba8 1701
11d337a4
TK
1702TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1703
1704TK/03 Merged latest SRS patch from Miles Wilton.
1705
415c8f3b
PH
1706PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1707 with the definition in sysexits.h (which is #included earlier).
1708 Fortunately, Exim does not actually use EX_OK. The code used to try to
1709 preserve the sysexits.h value, by assumimg that macro definitions were
1710 scanned for macro replacements. I have been disabused of this notion,
1711 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1712
958541e9
PH
1713PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1714 in the smtp transport. When a block could not be written in a single
1715 write() function, the timeout was being re-applied to each part-write.
1716 This seems wrong - if the receiver was accepting one byte at a time it
1717 would take for ever. The timeout is now adjusted when this happens. It
1718 doesn't have to be particularly precise.
1719
c206415f
TK
1720TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1721 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1722
2a4be8f9
PH
1723PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1724 without a domain if the check to <postmaster@domain> fails.
1725
1cba11c5
SC
1726SC/01 Eximstats: added -xls and the ability to specify output files
1727 (patch written by Frank Heydlauf).
1728
1729SC/02 Eximstats: use FileHandles for outputing results.
1730
1731SC/03 Eximstats: allow any combination of xls, txt, and html output.
1732
1733SC/04 Eximstats: fixed display of large numbers with -nvr option
1734
1735SC/05 Eximstats: fixed merging of reports with empty tables.
1736
1737SC/06 Eximstats: added the -include_original_destination flag
1738
1739SC/07 Eximstats: removed tabs and trailing whitespace.
1740
1005d00e
TK
1741TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1742
1743TK/06 MBOX spool code: Add real "From " MBOX separator line
1744 so the .eml file is really in mbox format (even though
1745 most programs do not really care). Patch from Alex Miller.
1746
1747TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1748 The latter is generated from $received_to and is only set if the
1749 message has one envelope recipient. SA can use these headers,
1750 obviously out-of-the-box. Patch from Alex Miller.
1751
9b4768fa
PH
1752PH/08 The ${def test on a variable was returning false if the variable's
1753 value was "0", contrary to what the specification has always said!
1754 The result should be true unless the variable is empty.
1755
1756PH/09 The syntax error of a character other than { following "${if
1757 def:variable_name" (after optional whitespace) was not being diagnosed.
1758 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1759 accidental colon was present, for example, could give incorrect results.
1760
0d7eb84a
PH
1761PH/10 Tidied the code in a number of places where the st_size field of a stat()
1762 result is used (not including appendfile, where other changes are about
1763 to be made).
1764
1765PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1766 This involved changing a lot of size variables from int to off_t. It
1767 should work with maildirs and everything.
1768
40727bee
TK
1769TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1770 spamd dying while we are connected to it.
1771
554d2369
TF
1772TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1773 <jgh@wizmail.org>
1774
1f922db1
PH
1775PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1776 function for BDB 4.3.
1777
ef213c3b
PH
1778PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1779
8ac170f3
PH
1780PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1781 the sources for PCRE have been re-arranged and more files are now
1782 involved.
1783
b1c749bb
PH
1784PH/15 The code I had for printing potentially long long variables in PH/11
1785 above was not the best (it lost precision). The length of off_t variables
1786 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1787 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1788 to be "long long int" or "long int". This is needed for the internal
1789 formatting function string_vformat().
b1c749bb 1790
4aac9b49
PH
1791PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1792 the configuration file to be ":syslog", then the script "guesses" where
1793 the logs files are, rather than using the compiled in default. In our
1794 case the guess is not the same as the compiled default, so the script
1795 suddenly stopped working when I started to use syslog. The patch checks
1796 to see if log_file_path is "". If so, it attempts to read it from exim
1797 with no configuration file to get the compiled in version, before it
1798 falls back to the previous guessing code."
1799
294520c8
TK
1800TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1801 implementing BATV in an Exim configuration. See NewStuff for the gory
1802 details.
1803
5bd022fe
PH
1804PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1805 Makefile that are specific to HP-UX.
1806
90e9ce59
PH
1807PH/18 If the "use_postmaster" option was set for a recipient callout together
1808 with the "random" option, the postmaster address was used as the MAIL
1809 FROM address for the random test, but not for the subsequent recipient
1810 test. It is now used for both.
1811
5ea81592
PH
1812PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1813 patch removes a few documentation additions to RFC 3028, because the
1814 latest draft now contains them. It adds the new en;ascii-case comparator
1815 and a new error check for 8bit text in MIME parts. Comparator and
1816 require names are now matched exactly. I enabled the subaddress
1817 extension, but it is not well tested yet (read: it works for me)."
1818
c6c2dc1d
PH
1819PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1820 rework some of the code of TK/09 above to avoid the hardwired use of
1821 "%lld" and "long long". Replaced the call to snprintf() with a call to
1822 string_vformat().
1823
fffffe4c
PH
1824PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1825 records point to non-existent hosts", "retry timeout exceeded", and
1826 "retry time not reached for any host after a long failure period".
ca02eafb 1827
9a26b6b2
PH
1828PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1829 experimental DomainKeys support:
1830
1831 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1832 (2) On an error such as an illegally used "control", the wrong name for
1833 the control was given.
1834
1835 These problems did NOT occur unless DomainKeys support was compiled.
1836
4aee0225
PH
1837PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1838
32d668a5
PH
1839PH/24 Added ${if match_ip condition.
1840
8187c3f3
PH
1841PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1842 databases so that it will be absolutely obvious if a crash occurs in the
1843 DB library. This is a regular occurrence (often caused by mis-matched
1844 db.h files).
1845
ff790e47 1846PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1847 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1848 picked up on a user's system that detects such things. There doesn't seem
1849 to be a gcc warning option for this - only an attribute that has to be
1850 put on the function's prototype. It seems that in Fedora Core 4 they have
1851 set this on a number of new functions. No doubt there will be more in due
1852 course.
ff790e47 1853
5417f6d1
PH
1854PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1855 specify a transport. However, if an address that was verified by such a
1856 router was the subject of a callout, Exim crashed because it tried to
1857 read the rcpt_include_affixes from the non-existent transport. Now it
1858 just assumes that the setting of that option is false. This bug was
1859 introduced by 4.51/PH/31.
1860
59cf8544
PH
1861PH/28 Changed -d+all to exclude +memory, because that information is very
1862 rarely of interest, but it makes the output a lot bigger. People tend to
1863 do -d+all out of habit.
1864
e7ad8a65
PH
1865PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1866 code in os-type was giving problems when libc.so lives in lib64, like on
1867 x86_64 Fedora Core.
1868
ade42478
PH
1869PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1870 aren't the modern standard, and it seems that some systems' include files
1871 don't always have them. Exim was already checking for some of the newer
1872 ones like T_AAAA, and defining it itself. I've added checks for all the
1873 record types that Exim uses.
1874
182ad5cf
PH
1875PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1876 not automatically generating a new one, as it is supposed to. This
1877 prevented TLS from working. If the file did exist, but contained invalid
1878 data, a new version was generated, as expected. It was only the case of a
1879 non-existent file that was broken.
1880
b0d9fc80
TK
1881TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1882 with a change in libdomainkeys > 0.64.
1883
1884TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1885 from DNS. If the selector record carries the flag, it now has
1886 precedence over the domain-wide flag.
1887
1888TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1889
47c7a64a
PH
1890PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1891 the use of a port name that isn't defined in /etc/services) occurred, the
1892 message was deferred as in a normal delivery, and thus remained on the
1893 spool, instead of being failed because of the mua_wrapper setting. This
1894 is now fixed, and I tidied up some of the mua_wrapper messages at the
1895 same time.
1896
a388bce4
SC
1897SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1898 the messages in a hash of arrays rather than using individual hashes.
1899 This is a bit cleaner and results in dramatic memory savings, albeit
1900 at a slight CPU cost.
1901
1902SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1903 as requested by Marc Sherman.
1904
1905SC/10 Eximstats: added histograms for user specified patterns as requested
1906 by Marc Sherman.
1907
0793e4ed
SC
1908SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1909
c58b88df
PH
1910PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1911 fopen() in the content-scanning modules that did not already have it.
1912
e7ad8a65 1913
7982096b
PH
1914Exim version 4.51
1915-----------------
1916
1a46a8c5
PH
1917TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1918 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1919
2f079f46 1920TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1921
1922TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1923
1924PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1925 to test Sieve filters that use "vacation".
1926
1927PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1928 that changes the way the GnuTLS parameters are stored in the cache file.
1929 The new format can be generated externally. For backward compatibility,
1930 if the data in the cache doesn't make sense, Exim assumes it has read an
1931 old-format file, and it generates new data and writes a new file. This
1932 means that you can't go back to an older release without removing the
1933 file.
1934
1935PH/03 A redirect router that has both "unseen" and "one_time" set does not
1936 work if there are any delivery delays because "one_time" forces the
1937 parent to be marked "delivered", so its unseen clone is never tried
1938 again. For this reason, Exim now forbids the simultaneous setting of
1939 these two options.
1940
1941PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1942 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1943 entry if you want to know the details. The fix, however, neglected to
1944 consider the case when local delivery batching is involved. The test for
1945 "previously delivered" was not happening when checking to see if an
1946 address could be batched with a previous (undelivered) one; under
1947 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1948 address.
1a46a8c5
PH
1949
1950PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1951 in its include files, and this causes problems building Exim.
1952
1953PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1954 header_syntax) but Exim was just ignoring anything given after a slash.
1955 In particular, this caused confusion with an attempt to use "verify =
1956 reverse_host_lookup/defer_ok". An error is now given when options are
1957 supplied for verify items that do not have them. (Maybe reverse_host_
1958 lookup should have a defer_ok option, but that's a different point.)
1959
1960PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1961 defined by RFC 821) to 2048, because there were problems with some AUTH
1962 commands, and RFC 1869 says the size should be increased for extended
1963 SMTP commands that take arguments.
1964
1965PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1966 Finch).
1967
1968PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1969 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1970
49c2d5ea
PH
1971PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1972 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1973 whatever). Otherwise the password may appear in the log. Following change
1974 PH/42 below, there is no longer a chance of it appearing in a bounce
1975 message.
49c2d5ea 1976
bf759a8b
PH
1977PH/11 Installed exipick version 20050225.0 from John Jetmore.
1978
83364d30
PH
1979PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1980 of its addresses was ever tried. (Bugzilla bug #2.)
1981
7999bbd7
PH
1982PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1983 the result incorrectly in the debug output. (It correctly added a newline
1984 to what was transported.)
1985
7dbf77c9
PH
1986TF/01 Added $received_time.
1987
74e0617f
PH
1988PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1989 commented out examples of how to interface to a virus scanner and to
1990 SpamAssassin. Also added commented examples of av_scanner and
1991 spamd_address settings.
1992
2f079f46
PH
1993PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1994 and controls are allowed in which ACLs. There were a couple of minor
1995 errors. Some of the entries in the conditions table (which is a table of
1996 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1997 negation of where the condition IS allowed.
1998
8c841523
PH
1999PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2000
7766a4f0
PH
2001PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2002 header file does not have a version number, so I've had to invent a new
2003 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2004 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2005 radiusclient), but it was contributed by a Radius user.
2006
8b417f2c
PH
2007PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2008 files or directories, for OpenSSL.
2009
901f42cb
PH
2010PH/19 When an Exim process that is running as root has to create an Exim log
2011 file, it does so in a subprocess that runs as exim:exim so as to get the
2012 ownership right at creation (otherwise, other Exim processes might see
2013 the file with the wrong ownership). There was no test for failure of this
2014 fork() call, which would lead to the process getting stuck as it waited
2015 for a non-existent subprocess. Forks do occasionally fail when resources
2016 run out. I reviewed all the other calls to fork(); they all seem to check
2017 for failure.
2018
f9b9210e
PH
2019PH/20 When checking for unexpected SMTP input at connect time (before writing
2020 the banner), Exim was not dealing correctly with a non-positive return
2021 from the read() function. If the client had disconnected by this time,
2022 the result was a log entry for a synchronization error with an empty
2023 string after "input=" when read() returned zero. If read() returned -1
2024 (an event I could not check), uninitialized data bytes were printed.
2025 There were reports of junk text (parts of files, etc) appearing after
2026 "input=".
2027
54cdb463
PH
2028PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2029
cf00dad6
PH
2030PH/22 Added support for macro redefinition, and (re)definition in between
2031 driver and ACL definitions.
2032
acb1b346
PH
2033PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2034 forgetting to use the resulting value; it was using the unexpanded value.
2035
c5ddb310
PH
2036PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2037 hadn't been configured. The fix is from Juergen Kreileder, who
2038 understands it better than I do:
2039
2040 "Here's what I see happening with three configured cyrus_sasl
2041 authenticators configured (plain, login, cram-md5):
2042
2043 On startup auth_cyrus_sasl_init() gets called for each of these.
2044 This means three calls to sasl_listmech() without a specified mech_list.
2045 => SASL tests which mechs of all available mechs actually work
2046 => three warnings about OTP not working
2047 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2048
2049 With the patch, sasl_listmech() also gets called three times. But now
2050 SASL's mech_list option is set to the server_mech specified in the the
2051 authenticator. Or in other words, the answer from sasl_listmech()
2052 gets limited to just the mech you're testing for (which is different
2053 for each call.)
2054 => the return list contains just 'plain' or 'login', 'cram-md5' or
2055 nothing depending on the value of ob->server_mech.
2056
2057 I've just tested the patch: Authentication still works fine,
2058 unavailable mechs specified in the exim configuration are still
2059 caught, and the auth.log warnings about OTP are gone."
2060
31619da6
PH
2061PH/25 When debugging is enabled, the contents of the command line are added
2062 to the debugging output, even when log_selector=+arguments is not
2063 specified.
2064
bebaf0fc
PH
2065PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2066 answer is "GNU", and only if the return is "GNU/something" is the answer
2067 "Linux".
2068
475fe28a
PH
2069PH/27 $acl_verify_message is now set immediately after the failure of a
2070 verification in an ACL, and so is available in subsequent modifiers. In
2071 particular, the message can be preserved by coding like this:
2072
2073 warn !verify = sender
2074 set acl_m0 = $acl_verify_message
2075
2076 Previously, $acl_verify_message was set only while expanding "message"
2077 and "log_message" when a very denied access.
2078
7e8bec7a
PH
2079PH/28 Modified OS/os.c-Linux with
2080
2081 -#ifndef OS_LOAD_AVERAGE
2082 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2083
2084 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2085 nomenclature these days.)
2086
e4a89c47
PH
2087PH/29 Installed patch from the Sieve maintainer that adds the options
2088 sieve_useraddress and sieve_subaddress to the redirect router.
2089
5ca2a9a1
PH
2090PH/30 In these circumstances:
2091 . Two addresses routed to the same list of hosts;
2092 . First host does not offer TLS;
2093 . First host accepts first address;
2094 . First host gives temporary error to second address;
2095 . Second host offers TLS and a TLS session is established;
2096 . Second host accepts second address.
2097 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2098 and peerdn, if requested) that were in fact used only for the second
2099 address.
7e8bec7a 2100
c688b954
PH
2101PH/31 When doing a callout as part of verifying an address, Exim was not paying
2102 attention to any local part prefix or suffix that was matched by the
2103 router that accepted the address. It now behaves in the same way as it
2104 does for delivery: the affixes are removed from the local part unless
2105 rcpt_include_affixes is set on the transport.
2106
fed77020
PH
2107PH/32 Add the sender address, as F=<...>, to the log line when logging a
2108 timeout during the DATA phase of an incoming message.
2109
7fe1560f
PH
2110PH/33 Sieve envelope tests were broken for match types other than :is. I have
2111 applied a patch sanctioned by the Sieve maintainer.
c688b954 2112
ebb6e6d5
PH
2113PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2114 the uid or gid is negative. A case of a negative gid caused this to be
2115 noticed. The fix allows for either to be negative.
2116
9c4e8f60
PH
2117PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2118 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2119 overlooked.
2120
2121PH/36 The change PH/12 above was broken. Fixed it.
2122
d7174846
PH
2123PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2124 the grounds that routing the same address twice would always produce the
2125 same answer. This might have been true once, but it is certainly no
2126 longer true now. Routing a child address may depend on the previous
2127 routing that produced that child. Some complicated redirection strategies
2128 went wrong when messages had multiple recipients, and made Exim's
2129 behaviour dependent on the order in which the addresses were given.
2130
2131 I have moved the duplicate checking until after the routing is complete.
2132 Exim scans the addresses that are assigned to local and remote
2133 transports, and removes any duplicates. This means that more work will be
2134 done, as duplicates will always all be routed, but duplicates are
2135 presumably rare, so I don't expect this is of any significance.
2136
2137 For deliveries to pipes, files, and autoreplies, the duplicate checking
2138 still happens during the routing process, since they are not going to be
2139 routed further.
2140
cfe75fc3
PH
2141PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2142 It corrects a timeout issue with spamd. This is Ian's comment: "The
2143 background is that sometimes spamd either never reads data from a
2144 connection it has accepted, or it never writes response data. The exiscan
2145 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2146 blindly assumes that writes won't block so it may never time out."
2147
be22d70e
PH
2148PH/39 Allow G after quota size as well as K and M.
2149
0612b098
PH
2150PH/40 The value set for $authenticated_id in an authenticator may not contain
2151 binary zeroes or newlines because the value is written to log lines and
2152 to spool files. There was no check on this. Now the value is run through
2153 the string_printing() function so that such characters are converted to
2154 printable escape sequences.
2155
2e0c1448
PH
2156PH/41 $message_linecount is a new variable that contains the total number of
2157 lines in the message. Compare $body_linecount, which is the count for the
2158 body only.
2159
447d236c
PH
2160PH/42 Exim no longer gives details of delivery errors for specific addresses in
2161 bounce and delay warning messages, except in certain special cases, which
2162 are as follows:
2163
2164 (a) An SMTP error message from a remote host;
2165 (b) A message specified in a :fail: redirection;
2166 (c) A message specified in a "fail" command in a system filter;
2167 (d) A message specified in a FAIL return from the queryprogram router;
2168 (e) A message specified by the cannot_route_message router option.
2169
2170 In these cases only, Exim does include the error details in bounce and
2171 warning messages. There are also a few cases where bland messages such
2172 as "unrouteable address" or "local delivery error" are given.
2173
d20976dc
PH
2174PH/43 $value is now also set for the "else" part of a ${run expansion.
2175
f656d135
PH
2176PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2177 being worked on, but at least Exim now implements the latest version to
2178 play with."
2179
2e2a30b4
PH
2180PH/45 In a pipe transport, although a timeout while waiting for the pipe
2181 process to complete was treated as a delivery failure, a timeout while
2182 writing the message to the pipe was logged, but erroneously treated as a
2183 successful delivery. Such timeouts include transport filter timeouts. For
2184 consistency with the overall process timeout, these timeouts are now
2185 treated as errors, giving rise to delivery failures by default. However,
2186 there is now a new Boolean option for the pipe transport called
2187 timeout_defer, which, if set TRUE, converts the failures into defers for
2188 both kinds of timeout. A transport filter timeout is now identified in
2189 the log output.
2190
9176e9f0
PH
2191PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2192 systems where "make" and "gmake" are different, calling "gmake" at top
2193 level broke things. I've arranged for the value of $(MAKE) to be passed
2194 from the Makefile to this script so that it can call the same version of
2195 "make".
2196
7982096b 2197
bbe902f0
PH
2198A note about Exim versions 4.44 and 4.50
2199----------------------------------------
2200
2201Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2202changes of various kinds. As a consequence, a big documentation update was
2203needed. This delayed the release for rather longer than seemed good, especially
2204in the light of a couple of (minor) security issues. Therefore, the changes
2205that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2206release. So 4.44 and 4.50 are in effect two different branches that both start
2207from 4.43.
2208
2209I have left the 4.50 change log unchanged; it contains all the changes since
22104.43. The change log for 4.44 is below; many of its items are identical to
2211those for 4.50. This seems to be the most sensible way to preserve the
2212historical information.
2213
2214
f7b63901 2215Exim version 4.50
495ae4b0
PH
2216-----------------
2217
5fe762f6
PH
2218 1. Minor wording change to the doc/README.SIEVE file.
2219
139059f6 2220 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2221 computation of the current number of files was incorrect.
495ae4b0 2222
7086e875
PH
2223 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2224 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2225 place.
2226
35af9f61
PH
2227 4. Give more explanation in the error message when the command for a transport
2228 filter fails to execute.
2229
b668c215
PH
2230 5. There are several places where Exim runs a non-Exim command in a
2231 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2232 was being done only for the command run by the queryprogram router. It is
2233 now done for all such subprocesses. The other cases are: ${run, transport
2234 filters, and the commands run by the lmtp and pipe transports.
2235
a494b1e1
PH
2236 6. Added CONFIGURE_GROUP build-time option.
2237
2238 7. Some older OS have a limit of 256 on the maximum number of file
2239 descriptors. Exim was using setrlimit() to set 1000 as a large value
2240 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2241 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2242
c5fcb476
PH
2243 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2244 was an oversight, and furthermore, ever since the addition of extra
2245 controls (e.g. 4.43/32), the checks on when to allow different forms of
2246 "control" were broken. There should now be diagnostics for all cases when a
2247 control that does not make sense is encountered.
2248
69358f02
PH
2249 9. Added the /retain_sender option to "control=submission".
2250
5be20824
PH
225110. $recipients is now available in the predata ACL (oversight).
2252
eb2c0248
PH
225311. Tidy the search cache before the fork to do a delivery from a message
2254 received from the command line. Otherwise the child will trigger a lookup
2255 failure and thereby defer the delivery if it tries to use (for example) a
2256 cached ldap connection that the parent has called unbind on.
2257
2a3eea10
PH
225812. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2259 of $address_data from the recipient verification was clobbered by the
2260 sender verification.
2261
226213. The value of address_data from a sender verification is now available in
2263 $sender_address_data in subsequent conditions in the ACL statement.
2264
23c7ff99
PH
226514. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2266
4deaf07d
PH
226715. Added a new option "connect=<time>" to callout options, to set a different
2268 connection timeout.
2269
926e1192
PH
227016. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2271 was its contents. (It was OK if the option was not defined at all.)
2272
650edc6f
PH
227317. A "Completed" log line is now written for messages that are removed from
2274 the spool by the -Mrm option.
2275
2c7db3f5
PH
227618. New variables $sender_verify_failure and $recipient_verify_failure contain
2277 information about exactly what failed.
2278
3d235903
PH
227919. Added -dd to debug only the daemon process.
2280
7c7ad977
PH
228120. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2282 handles timeouts, both on the server side and network timeouts. Renamed the
2283 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2284
981756db
PH
228521. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2286 It is now set to "smtps".
2287
d4eb88df
PH
228822. $host_address is now set to the target address during the checking of
2289 ignore_target_hosts.
2290
229123. When checking ignore_target_hosts for an ipliteral router, no host name was
2292 being passed; this would have caused $sender_host_name to have been used if
2293 matching the list had actually called for a host name (not very likely,
2294 since this list is usually IP addresses). A host name is now passed as
2295 "[x.x.x.x]".
2296
7d468ab8
PH
229724. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2298 code that specifies a non-restarting handler (typically sigaction() in
2299 modern systems) in an attempt to fix a rare and obscure crash bug.
2300
230125. Narrowed the window for a race in the daemon that could cause it to ignore
2302 SIGCHLD signals. This is not a major problem, because they are used only to
2303 wake it up if nothing else does.
2304
62c0818f
PH
230526. A malformed maildirsize file could cause Exim to calculate negative values
2306 for the mailbox size or file count. Odd effects could occur as a result.
2307 The maildirsize information is now recalculated if the size or filecount
2308 end up negative.
2309
26034054
PH
231027. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2311 support for a long time. Removed HAVE_SYS_VFS_H.
2312
af66f652
PH
231328. Installed the latest version of exipick from John Jetmore.
2314
90af77f4
PH
231529. In an address list, if the pattern was not a regular expression, an empty
2316 subject address (from a bounce message) matched only if the pattern was an
2317 empty string. Non-empty patterns were not even tested. This was the wrong
2318 because it is perfectly reasonable to use an empty address as part of a
2319 database query. An empty address is now tested by patterns that are
2320 lookups. However, all the other forms of pattern expect the subject to
2321 contain a local part and a domain, and therefore, for them, an empty
2322 address still always fails if the pattern is not itself empty.
2323
d8ef3577
PH
232430. Exim went into a mad DNS loop when attempting to do a callout where the
2325 host was specified on an smtp transport, and looking it up yielded more
2326 than one IP address.
2327
5cb8cbc6
PH
232831. Re-factored the code for checking spool and log partition space into a
2329 function that finds that data and another that does the check. The former
2330 is then used to implement four new variables: $spool_space, $log_space,
2331 $spool_inodes, and $log_inodes.
2332
14702f5b
PH
233332. The RFC2047 encoding function was originally intended for short strings
2334 such as real names; it was not keeping to the 75-character limit for
2335 encoded words that the RFC imposes. It now respects the limit, and
2336 generates multiple encoded words if necessary. To be on the safe side, I
2337 have increased the buffer size for the ${rfc2047: expansion operator from
2338 1024 to 2048 bytes.
2339
063b1e99
PH
234033. It is now permitted to omit both strings after an "if" condition; if the
2341 condition is true, the result is "true". As before, when the second string
2342 is omitted, a false condition yields an empty string. This makes it less
2343 cumbersome to write custom ACL and router conditions.
2344
652e1b65
PH
234534. Failure to deliver a bounce message always caused it to be frozen, even if
2346 there was an errors_to setting on the router. The errors_to setting is now
2347 respected.
2348
6f0c9a4f
PH
234935. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2350 canonical form (fully expanded) before being placed in
2351 $sender_host_address.
2352
33397d19
PH
235336. The table in the code that translates DNS record types into text (T_A to
2354 "A" for instance) was missing entries for NS and CNAME. It is just possible
2355 that this could have caused confusion if both these types were looked up
2356 for the same domain, because the text type is used as part of Exim's
2357 per-process caching. But the chance of anyone hitting this buglet seems
2358 very small.
2359
7bb56e1f
PH
236037. The dnsdb lookup has been extended in a number of ways.
2361
2362 (1) There is a new type, "zns", which walks up the domain tree until it
2363 finds some nameserver records. It should be used with care.
2364
ea3bc19b
PH
2365 (2) There is a new type, "mxh", which is like "mx" except that it returns
2366 just the host names, not the priorities.
2367
2368 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2369 looked up. The behaviour when one of the lookups defers can be
2370 controlled by a keyword.
7bb56e1f 2371
ea3bc19b 2372 (4) It is now possible to specify the separator character for use when
7bb56e1f 2373 multiple records are returned.
33397d19 2374
0bcb2a0e
PH
237538. The dnslists ACL condition has been extended: it is now possible to supply
2376 a list of IP addresses and/or domains to be looked up in a particular DNS
2377 domain.
2378
2ac0e484
PH
237939. Added log_selector=+queue_time_overall.
2380
4e1fde53
PH
238140. When running the queue in the test harness, wait just a tad after forking a
2382 delivery process, to get repeatability of debugging output.
2383
de365ded
PH
238441. Include certificate and key file names in error message when GnuTLS fails
2385 to set them up, because the GnuTLS error message doesn't include the name
2386 of the failing file when there is a problem reading it.
2387
f05da2e8
PH
238842. Allow both -bf and -bF in the same test run.
2389
d6453af2
PH
239043. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2391
f7b63901
PH
239244. The "Exiscan patch" is now merged into the mainline Exim source.
2393
239445. Sometimes the final signoff response after QUIT could fail to get
2395 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2396 < 0 before doing a fflush(). This bug looks as though it goes back to the
2397 introduction of TLS in release 3.20, but "sometimes" must have been rare
2398 because the tests only now provoked it.
2399
a444213a
PH
240046. Reset the locale to "C" after calling embedded Perl, in case it was changed
2401 (this can affect the format of dates).
2402
0ec020ea
PH
240347. exim_tidydb, when checking for the continued existence of a message for
2404 which it has found a message-specific retry record, was not finding
2405 messages that were in split spool directories. Consequently, it was
2406 deleting retry records that should have stayed in existence.
2407
b1206957
PH
240848. Steve fixed some bugs in eximstats.
2409
241049. The SPA authentication driver was not abandoning authentication and moving
2411 on to the next authenticator when an expansion was forced to fail,
2412 contradicting the general specification for all authenticators. Instead it
2413 was generating a temporary error. It now behaves as specified.
2414
26dd5a95
PH
241550. The default ordering of permitted cipher suites for GnuTLS was pessimal
2416 (the order specifies the preference for clients). The order is now AES256,
2417 AES128, 3DES, ARCFOUR128.
2418
343b2385
PH
241951. Small patch to Sieve code - explicitly set From: when generating an
2420 autoreply.
2421
1c5466b9
PH
242252. Exim crashed if a remote delivery caused a very long error message to be
2423 recorded - for instance if somebody sent an entire SpamAssassin report back
2424 as a large number of 550 error lines. This bug was coincidentally fixed by
2425 increasing the size of one of Exim's internal buffers (big_buffer) that
2426 happened as part of the Exiscan merge. However, to be on the safe side, I
2427 have made the code more robust (and fixed the comments that describe what
2428 is going on).
2429
55ee9ee3
PH
243053. Now that there can be additional text after "Completed" in log lines (if
2431 the queue_time_overall log selector is set), a one-byte patch to exigrep
2432 was needed to allow it to recognize "Completed" as not the last thing in
2433 the line.
2434
d38f8232
PH
243554. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2436 patch that reportedly fixes this has been added. I am not expert enough to
2437 create a test for it. This is what the patch creator wrote:
2438
2439 "I found a little strange behaviour of ldap code when working with
2440 Windows 2003 AD Domain, where users was placed in more than one
2441 Organization Units. When I tried to give exim partial DN, the exit code
2442 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2443 But simultaneously result of request was absolutely normal ldap result,
2444 so I produce this patch..."
2445
3295e65b
PH
2446 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2447 REFERENCE, so I have modified the code to exclude the patch when that macro
2448 is not defined.
2449
7102e136
PH
245055. Some experimental protocols are using DNS PTR records for new purposes. The
2451 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2452 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2453 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2454 CAN-2005-0021
7102e136 2455
3ca0ba97
PH
245656. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2457
c2bcbe20
PH
245857. Double the size of the debug message buffer (to 2048) so that more of very
2459 long debug lines gets shown.
2460
18ce445d
PH
246158. The exicyclog utility now does better if the number of log files to keep
2462 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2463
1f5b4c3d
PH
246459. Two changes related to the smtp_active_hostname option:
2465
2466 (1) $smtp_active_hostname is now available as a variable.
2467 (2) The default for smtp_banner uses $smtp_active_hostname instead
2468 of $primary_hostname.
2469
b975ba52
PH
247060. The host_aton() function is supposed to be passed a string that is known
2471 to be a valid IP address. However, in the case of IPv6 addresses, it was
2472 not checking this. This is a hostage to fortune. Exim now panics and dies
2473 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2474 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2475 components; fortuitously, this particular loophole had already been fixed
2476 by change 4.50/55 above.
2477
2478 If there are any other similar loopholes, the new check in host_aton()
2479 itself should stop them being exploited. The report I received stated that
2480 data on the command line could provoke the exploit when Exim was running as
2481 exim, but did not say which command line option was involved. All I could
2482 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2483 running as the user.
ea3a6f44 2484 CAN-2005-0021
85b87bc2
PH
2485
248661. There was a buffer overflow vulnerability in the SPA authentication code
2487 (which came originally from the Samba project). I have added a test to the
2488 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2489 CAN-2005-0022
b975ba52 2490
17ffcae7
PH
249162. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2492 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2493
d95f9fdb
PH
249463. The daemon start-up calls getloadavg() while still root for those OS that
2495 need the first call to be done as root, but it missed one case: when
2496 deliver_queue_load_max is set with deliver_drop_privilege. This is
2497 necessary for the benefit of the queue runner, because there is no re-exec
2498 when deliver_drop_privilege is set.
2499
86b8287f
PH
250064. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2501 This has been fixed.
2502
60dc5e56
PH
250365. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2504 was in use, was not putting the data itself into the right store pool;
2505 consequently, it could be overwritten for a subsequent message in the same
2506 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2507 the caching.)
2508
533244af
PH
250966. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2510
a5a28604
PH
251167. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2512 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2513 the function were treating the return as a boolean value, which happened to
2514 work because 0=false and not-0=true, but is not correct code.
2515
7e634d24
PH
251668. The host_aton() function was not handling scoped IPv6 addresses (those
2517 with, for example, "%eth0" on the end) correctly.
2518
3e11c26b
PH
251969. Fixed some compiler warnings in acl.c for the bitmaps specified with
2520 negated items (that is, ~something) in unsigned ints. Some compilers
2521 apparently mutter when there is no cast.
2522
6729cf78
PH
252370. If an address verification called from an ACL failed, and did not produce a
2524 user-specific message (i.e. there was only a "system" message), nothing was
2525 put in $acl_verify_message. In this situation, it now puts the system
2526 message there.
2527
00f00ca5
PH
252871. Change 4.23/11 added synchronization checking at the start of an SMTP
2529 session; change 4.31/43 added the unwanted input to the log line - except
2530 that it did not do this in the start of session case. It now does.
2531
c9bdd01c
PH
253272. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2533 This is wrong and can cause the other end to generate a synchronization
2534 error if it is another Exim or anything else that does the synchronization
2535 check. A QUIT command is no longer sent after a timeout.
2536
d43194df
PH
253773. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2538 during host lookups.
2539
fe5b5d0b
PH
254074. The defer_ok option of callout verification was not working if it was used
2541 when verifying addresses in header lines, that is, for this case:
2542
2543 verify = header_sender/callout=defer_ok
2544
76a2d7ba
PH
254575. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2546 those file descriptors could be used for SMTP connections. If anything
2547 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2548 could be sent to the SMTP client, causing chaos. The daemon now opens
2549 stdin, stdout, and stderr to /dev/null when it puts itself into the
2550 background.
2551
255276. Arrange for output from Perl's "warn" command to be written to Exim's main
2553 log by default. The user can override this with suitable Perl magic.
2554
04f7d5b9
PH
255577. The use of log_message on a "discard" ACL verb, which is supposed to add to
2556 the log message when discard triggers, was not working for the DATA ACL or
2557 for the non-SMTP ACL.
2558
bc60667e
PH
255978. Error message wording change in sieve.c.
2560
bb6e88ff
PH
256179. If smtp_accept_max_per_host was set, the number of connections could be
2562 restricted to fewer than expected, because the daemon was trying to set up
2563 a new connection before checking whether the processes handling previous
2564 connections had finished. The check for completed processes is now done
2565 earlier. On busy systems, this bug wouldn't be noticed because something
2566 else would have woken the daemon, and it would have reaped the completed
2567 process earlier.
2568
1e70f85b
PH
256980. If a message was submitted locally by a user whose login name contained one
2570 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2571 It caused a spool format error. I have fixed the spool reading code. A
2572 related problem was that the "from" clause in the Received: line became
2573 illegal because of the space(s). It is now covered by ${quote_local_part.
2574
257581. Included the latest eximstats from Steve (adds average sizes to HTML Top
2576 tables).
2577
4e01f9d6
PH
257882. Updated OS/Makefile-AIX as per message from Mike Meredith.
2579
1ee1cef2
PH
258083. Patch from Sieve maintainer to fix unterminated string problem in
2581 "vacation" handling.
2582
6e2b4ccc
PH
258384. Some minor changes to the Linux configuration files to help with other
2584 OS variants using glibc.
2585
8e669ac1
PH
258685. One more patch for Sieve to update vacation handling to latest spec.
2587
495ae4b0 2588
bbe902f0
PH
2589----------------------------------------------------
2590See the note above about the 4.44 and 4.50 releases.
2591----------------------------------------------------
2592
2593
2594Exim version 4.44
2595-----------------
2596
2597 1. Change 4.43/35 introduced a bug that caused file counts to be
2598 incorrectly computed when quota_filecount was set in an appendfile
2599 transport
2600
2601 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2602 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2603 place.
2604
2605 3. Give more explanation in the error message when the command for a transport
2606 filter fails to execute.
2607
2608 4. There are several places where Exim runs a non-Exim command in a
2609 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2610 was being done only for the command run by the queryprogram router. It is
2611 now done for all such subprocesses. The other cases are: ${run, transport
2612 filters, and the commands run by the lmtp and pipe transports.
2613
2614 5. Some older OS have a limit of 256 on the maximum number of file
2615 descriptors. Exim was using setrlimit() to set 1000 as a large value
2616 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2617 systems. I've change it so that if it can't get 1000, it tries for 256.
2618
2619 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2620 was an oversight, and furthermore, ever since the addition of extra
2621 controls (e.g. 4.43/32), the checks on when to allow different forms of
2622 "control" were broken. There should now be diagnostics for all cases when a
2623 control that does not make sense is encountered.
2624
2625 7. $recipients is now available in the predata ACL (oversight).
2626
2627 8. Tidy the search cache before the fork to do a delivery from a message
2628 received from the command line. Otherwise the child will trigger a lookup
2629 failure and thereby defer the delivery if it tries to use (for example) a
2630 cached ldap connection that the parent has called unbind on.
2631
2632 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2633 of $address_data from the recipient verification was clobbered by the
2634 sender verification.
2635
263610. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2637 was its contents. (It was OK if the option was not defined at all.)
2638
263911. A "Completed" log line is now written for messages that are removed from
2640 the spool by the -Mrm option.
2641
264212. $host_address is now set to the target address during the checking of
2643 ignore_target_hosts.
2644
264513. When checking ignore_target_hosts for an ipliteral router, no host name was
2646 being passed; this would have caused $sender_host_name to have been used if
2647 matching the list had actually called for a host name (not very likely,
2648 since this list is usually IP addresses). A host name is now passed as
2649 "[x.x.x.x]".
2650
265114. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2652 code that specifies a non-restarting handler (typically sigaction() in
2653 modern systems) in an attempt to fix a rare and obscure crash bug.
2654
265515. Narrowed the window for a race in the daemon that could cause it to ignore
2656 SIGCHLD signals. This is not a major problem, because they are used only to
2657 wake it up if nothing else does.
2658
265916. A malformed maildirsize file could cause Exim to calculate negative values
2660 for the mailbox size or file count. Odd effects could occur as a result.
2661 The maildirsize information is now recalculated if the size or filecount
2662 end up negative.
2663
266417. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2665 support for a long time. Removed HAVE_SYS_VFS_H.
2666
ea3a6f44 266718. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2668
266919. Allow an empty sender to be matched against a lookup in an address list.
2670 Previously the only cases considered were a regular expression, or an
2671 empty pattern.
2672
267320. Exim went into a mad DNS lookup loop when doing a callout where the
2674 host was specified on the transport, if the DNS lookup yielded more than
2675 one IP address.
2676
ea3a6f44
NM
267721. The RFC2047 encoding function was originally intended for short strings
2678 such as real names; it was not keeping to the 75-character limit for
2679 encoded words that the RFC imposes. It now respects the limit, and
2680 generates multiple encoded words if necessary. To be on the safe side, I
2681 have increased the buffer size for the ${rfc2047: expansion operator from
2682 1024 to 2048 bytes.
bbe902f0 2683
ea3a6f44
NM
268422. Failure to deliver a bounce message always caused it to be frozen, even if
2685 there was an errors_to setting on the router. The errors_to setting is now
2686 respected.
bbe902f0
PH
2687
268823. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2689 canonical form (fully expanded) before being placed in
2690 $sender_host_address.
2691
269224. Updated eximstats to version 1.33
2693
ea3a6f44
NM
269425. Include certificate and key file names in error message when GnuTLS fails
2695 to set them up, because the GnuTLS error message doesn't include the name
2696 of the failing file when there is a problem reading it.
bbe902f0
PH
2697
269826. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2699 As per change 25.
bbe902f0 2700
ea3a6f44
NM
270127. Reset the locale to "C" after calling embedded Perl, in case it was changed
2702 (this can affect the format of dates).
bbe902f0 2703
ea3a6f44
NM
270428. exim_tidydb, when checking for the continued existence of a message for
2705 which it has found a message-specific retry record, was not finding
2706 messages that were in split spool directories. Consequently, it was
2707 deleting retry records that should have stayed in existence.
bbe902f0
PH
2708
270929. eximstats updated to version 1.35
2710 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2711 1.35 - bugfix such that pie charts by volume are generated correctly
2712
ea3a6f44
NM
271330. The SPA authentication driver was not abandoning authentication and moving
2714 on to the next authenticator when an expansion was forced to fail,
2715 contradicting the general specification for all authenticators. Instead it
2716 was generating a temporary error. It now behaves as specified.
bbe902f0 2717
ea3a6f44
NM
271831. The default ordering of permitted cipher suites for GnuTLS was pessimal
2719 (the order specifies the preference for clients). The order is now AES256,
2720 AES128, 3DES, ARCFOUR128.
bbe902f0 2721
ea3a6f44
NM
272231. Small patch to Sieve code - explicitly set From: when generating an
2723 autoreply.
bbe902f0 2724
ea3a6f44
NM
272532. Exim crashed if a remote delivery caused a very long error message to be
2726 recorded - for instance if somebody sent an entire SpamAssassin report back
2727 as a large number of 550 error lines. This bug was coincidentally fixed by
2728 increasing the size of one of Exim's internal buffers (big_buffer) that
2729 happened as part of the Exiscan merge. However, to be on the safe side, I
2730 have made the code more robust (and fixed the comments that describe what
2731 is going on).
bbe902f0 2732
ea3a6f44
NM
273333. Some experimental protocols are using DNS PTR records for new purposes. The
2734 keys for these records are domain names, not reversed IP addresses. The
2735 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2736 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2737 CAN-2005-0021
2738
ea3a6f44
NM
273934. The host_aton() function is supposed to be passed a string that is known
2740 to be a valid IP address. However, in the case of IPv6 addresses, it was
2741 not checking this. This is a hostage to fortune. Exim now panics and dies
2742 if the condition is not met. A case was found where this could be provoked
2743 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2744 components; fortuitously, this particular loophole had already been fixed
2745 by change 4.50/55 or 4.44/33 above.
2746
2747 If there are any other similar loopholes, the new check in host_aton()
2748 itself should stop them being exploited. The report I received stated that
2749 data on the command line could provoke the exploit when Exim was running as
2750 exim, but did not say which command line option was involved. All I could
2751 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2752 running as the user.
bbe902f0
PH
2753 CAN-2005-0021
2754
ea3a6f44
NM
275535. There was a buffer overflow vulnerability in the SPA authentication code
2756 (which came originally from the Samba project). I have added a test to the
2757 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2758 CAN-2005-0022
2759
ea3a6f44
NM
276036. The daemon start-up calls getloadavg() while still root for those OS that
2761 need the first call to be done as root, but it missed one case: when
2762 deliver_queue_load_max is set with deliver_drop_privilege. This is
2763 necessary for the benefit of the queue runner, because there is no re-exec
2764 when deliver_drop_privilege is set.
bbe902f0 2765
ea3a6f44
NM
276637. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2767 was in use, was not putting the data itself into the right store pool;
2768 consequently, it could be overwritten for a subsequent message in the same
2769 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2770 the caching.)
bbe902f0 2771
ea3a6f44
NM
277238. Sometimes the final signoff response after QUIT could fail to get
2773 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2774 < 0 before doing a fflush(). This bug looks as though it goes back to the
2775 introduction of TLS in release 3.20, but "sometimes" must have been rare
2776 because the tests only now provoked it.
bbe902f0
PH
2777
2778
495ae4b0
PH
2779Exim version 4.43
2780-----------------
2781
2782 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2783 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2784 Now it returns an integer. A number of calls were still expecting a T/F
2785 return. Fortuitously, in all cases, the tests worked in OK situations,
2786 which is the norm. However, things would have gone wrong on any write
2787 failures on the smtp file descriptor. This function is used when sending
2788 messages over SMTP and also when doing verify callouts.
2789
2790 2. When Exim is called to do synchronous delivery of a locally submitted
2791 message (the -odf or -odi options), it no longer closes stderr before doing
2792 the delivery.
2793
2794 3. Implemented the mua_wrapper option.
2795
2796 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2797
2798 5. Implemented the functions header_remove(), header_testname(),
2799 header_add_at_position(), and receive_remove_recipient(), and exported them
2800 to local_scan().
2801
2802 6. If an ACL "warn" statement specified the addition of headers, Exim already
2803 inserted X-ACL-Warn: at the start if there was no header name. However, it
2804 was not making this test for the second and subsequent header lines if
2805 there were newlines in the string. This meant that an invalid header could
2806 be inserted if Exim was badly configured.
2807
2808 7. Allow an ACL "warn" statement to add header lines at the start or after all
2809 the Received: headers, as well as at the end.
2810
2811 8. Added the rcpt_4xx retry error code.
2812
2813 9. Added postmaster_mailfrom=xxx to callout verification option.
2814
281510. Added mailfrom=xxxx to the callout verification option, for verify=
2816 header_sender only.
2817
281811. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2819 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2820
282112. Inserted some casts to stop certain compilers warning when using pointer
2822 differences as field lengths or precisions in printf-type calls (mostly
2823 affecting debugging statements).
2824
282513. Added optional readline() support for -be (dynamically loaded).
2826
282714. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2828 same clock tick as a message's arrival, so that its received time was the
2829 same as the "first fail" time on the retry record, and that message
2830 remained on the queue past the ultimate address timeout, every queue runner
2831 would try a delivery (because it was past the ultimate address timeout) but
2832 after another failure, the ultimate address timeout, which should have then
2833 bounced the address, did not kick in. This was a "< instead of <=" error;
2834 in most cases the first failure would have been in the next clock tick
2835 after the received time, and all would be well.
2836
283715. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2838 being recognized when the domain list was tested by the match_domain
2839 condition in an expansion string.
2840
284116. Added the ${str2b64: operator.
2842
284317. Exim was always calling setrlimit() to set a large limit for the number of
2844 processes, without checking whether the existing limit was already
2845 adequate. (It did check for the limit on file descriptors.) Furthermore,
2846 errors from getrlimit() and setrlimit() were being ignored. Now they are
2847 logged to the main and panic logs, but Exim does carry on, to try to do its
2848 job under whatever limits there are.
2849
285018. Imported PCRE 5.0.
2851
285219. Trivial typo in log message " temporarily refused connection" (the leading
2853 space).
2854
285520. If the log selector return_path_on_delivery was set and an address was
2856 redirected to /dev/null, the delivery process crashed because it assumed
2857 that a return path would always be set for a "successful" delivery. In this
2858 case, the whole delivery is bypassed as an optimization, and therefore no
2859 return path is set.
2860
286121. Internal re-arrangement: the function for sending a challenge and reading
2862 a response while authentication was assuming a zero-terminated challenge
2863 string. It's now changed to take a pointer and a length, to allow for
2864 binary data in such strings.
2865
286622. Added the cyrus_sasl authenticator (code supplied by MBM).
2867
286823. Exim was not respecting finduser_retries when seeking the login of the
2869 uid under which it was called; it was always trying 10 times. (The default
2870 setting of finduser_retries is zero.) Also, it was sleeping after the final
2871 failure, which is pointless.
2872
287324. Implemented tls_on_connect_ports.
2874
287525. Implemented acl_smtp_predata.
2876
287726. If the domain in control=submission is set empty, Exim assumes that the
2878 authenticated id is a complete email address when it generates From: or
2879 Sender: header lines.
2880
288127. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2882 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2883 chown and chgrp in /bin and hostname in /usr/bin.
2884
288528. Exim was keeping the "process log" file open after each use, just as it
2886 does for the main log. This opens the possibility of it remaining open for
2887 long periods when the USR1 signal hits a daemon. Occasional processlog
2888 errors were reported, that could have been caused by this. Anyway, it seems
2889 much more sensible not to leave this file open at all, so that is what now
2890 happens.
2891
289229. The long-running daemon process does not normally write to the log once it
2893 has entered its main loop, and it closes the log before doing so. This is
2894 so that log files can straightforwardly be renamed and moved. However,
2895 there are a couple of unusual error situations where the daemon does write
2896 log entries, and I had neglected to close the log afterwards.
2897
289830. The text of an SMTP error response that was received during a remote
2899 delivery was being truncated at 512 bytes. This is too short for some of
2900 the long messages that one sometimes sees. I've increased the limit to
2901 1024.
2902
290331. It is now possible to make retry rules that apply only when a message has a
2904 specific sender, in particular, an empty sender.
2905
290632. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2907 it possible to be selective about when SMTP synchronization is enforced.
2908
290933. Added "control = caseful_local_part" and "control = "caselower_local_part".
2910
291132. Implemented hosts_connection_nolog.
2912
291333. Added an ACL for QUIT.
2914
291534. Setting "delay_warning=" to disable warnings was not working; it gave a
2916 syntax error.
2917
291835. Added mailbox_size and mailbox_filecount to appendfile.
2919
292036. Added control = no_multiline_responses to ACLs.
2921
292237. There was a bug in the logic of the code that waits for the clock to tick
2923 in the case where the clock went backwards by a substantial amount such
2924 that the microsecond fraction of "now" was more than the microsecond
2925 fraction of "then" (but the whole seconds number was less).
2926
292738. Added support for the libradius Radius client library this is found on
2928 FreeBSD (previously only the radiusclient library was supported).
2929
2930
2931Exim version 4.42
2932-----------------
2933
2934 1. When certain lookups returned multiple values in the form name=value, the
2935 quoting of the values was not always being done properly. Specifically:
2936 (a) If the value started with a double quote, but contained no whitespace,
2937 it was not quoted.
2938 (b) If the value contained whitespace other than a space character (i.e.
2939 tabs or newlines or carriage returns) it was not quoted.
2940 This fix has been applied to the mysql and pgsql lookups by writing a
2941 separate quoting function and calling it from the lookup code. The fix
2942 should probably also be applied to nisplus, ibase and oracle lookups, but
2943 since I cannot test any of those, I have not disturbed their existing code.
2944
2945 2. A hit in the callout cache for a specific address caused a log line with no
2946 reason for rejecting RCPT. Now it says "Previous (cached) callout
2947 verification failure".
2948
2949 3. There was an off-by-one bug in the queryprogram router. An over-long
2950 return line was truncated at 256 instead of 255 characters, thereby
2951 overflowing its buffer with the terminating zero. As well as fixing this, I
2952 have increased the buffer size to 1024 (and made a note to document this).
2953
2954 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2955 when Exim is waiting for an SMTP response from a remote server, Exim
2956 restarts its select() call on the socket, thereby resetting its timeout.
2957 This is not a problem when such interrupts are rare. Somebody set up a cron
2958 job to run exiwhat every 2 minutes, which is less than the normal select()
2959 timeout (5 or 10 minutes). This meant that the select() timeout never
2960 kicked in because it was always reset. I have fixed this by comparing the
2961 time when an interrupt arrives with the time at the start of the first call
2962 to select(). If more time than the timeout has elapsed, the interrupt is
2963 treated as a timeout.
2964
2965 5. Some internal re-factoring in preparation for the addition of Sieve
2966 extensions (by MH). In particular, the "personal" test is moved to a
2967 separate function, and given an option for scanning Cc: and Bcc: (which is
2968 not set for Exim filters).
2969
2970 6. When Exim created an email address using the login of the caller as the
2971 local part (e.g. when creating a From: or Sender: header line), it was not
2972 quoting the local part when it contained special characters such as @.
2973
2974 7. Installed new OpenBSD configuration files.
2975
2976 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2977 try to make them clearer.
2978
2979 9. Callout options, other than the timeout value, were being ignored when
2980 verifying sender addresses in header lines. For example, when using
2981
2982 verify = header_sender/callout=no_cache
2983
2984 the cache was (incorrectly) being used.
2985
298610. Added a missing instance of ${EXE} to the exim_install script; this affects
2987 only the Cygwin environment.
2988
298911. When return_path_on_delivery was set as a log selector, if different remote
2990 addresses in the same message used different return paths and parallel
2991 remote delivery occurred, the wrong values would sometimes be logged.
2992 (Whenever a remote delivery process finished, the return path value from
2993 the most recently started remote delivery process was logged.)
2994
299512. RFC 3848 specifies standard names for the "with" phrase in Received: header
2996 lines when AUTH and/or TLS are in use. This is the "received protocol"
2997 field. Exim used to use "asmtp" for authenticated SMTP, without any
2998 indication (in the protocol name) for TLS use. Now it follows the RFC and
2999 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3000 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3001 names appear in log lines as well as in Received: header lines.
3002
300313. Installed MH's patches for Sieve to add the "copy" and "vacation"
3004 extensions, and comparison tests, and to fix some bugs.
3005
300614. Changes to the "personal" filter test:
3007
3008 (1) The test was buggy in that it was just doing the equivalent of
3009 "contains" tests on header lines. For example, if a user's address was
3010 anne@some.where, the "personal" test would incorrectly be true for
3011
3012 To: susanne@some.where
3013
3014 This test is now done by extracting each address from the header in turn,
3015 and checking the entire address. Other tests that are part of "personal"
3016 are now done using regular expressions (for example, to check local parts
3017 of addresses in From: header lines).
3018
3019 (2) The list of non-personal local parts in From: addresses has been
3020 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3021 taken from the Sieve specification recommendations.
3022
3023 (3) If the message contains any header line starting with "List-" it is
3024 treated as non-personal.
3025
3026 (4) The test for "circular" in the Subject: header line has been removed
3027 because it now seems ill-conceived.
3028
302915. Minor typos in src/EDITME comments corrected.
3030
303116. Installed latest exipick from John Jetmore.
3032
303317. If headers_add on a router specified a text string that was too long for
3034 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3035 of string_sprintf() is now avoided.
3036
303718. $message_body_size was not set (it was always zero) when running the DATA
3038 ACL and the local_scan() function.
3039
304019. For the "mail" command in an Exim filter, no default was being set for
3041 the once_repeat time, causing a random time value to be used if "once" was
3042 specified. (If the value happened to be <= 0, no repeat happened.) The
3043 default is now 0s, meaning "never repeat". The "vacation" command was OK
3044 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3045 (I found it when inspecting the code).
3046
304720. There is now an overall timeout for performing a callout verification. It
3048 defaults to 4 times the callout timeout, which applies to individual SMTP
3049 commands during the callout. The overall timeout applies when there is more
3050 than one host that can be tried. The timeout is checked before trying the
3051 next host. This prevents very long delays if there are a large number of
3052 hosts and all are timing out (e.g. when the network connections are timing
3053 out). The value of the overall timeout can be changed by specifying an
3054 additional sub-option for "callout", called "maxwait". For example:
3055
3056 verify = sender/callout=5s,maxwait=20s
3057
305821. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3059 to the end before writing, but this should make it even safer).
3060
306122. Exim was forgetting that it had advertised PIPELINING for the second and
3062 subsequent messages on an SMTP connection. It was also not resetting its
3063 memory on STARTTLS and an internal HELO.
3064
306523. When Exim logs an SMTP synchronization error within a session, it now
3066 records whether PIPELINING has been advertised or not.
3067
306824. Added 3 instances of "(long int)" casts to time_t variables that were being
3069 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3070 rather than long int.
3071
307225. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3073
307426. Added the never_mail option to autoreply.
3075
3076
3077Exim version 4.41
3078-----------------
3079
3080 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3081 crash if the getsockname() call failed; this can happen if a connection is
3082 closed very soon after it is established. The problem was simply in the
3083 order in which certain operations were done, causing Exim to try to write
3084 to the SMTP stream before it had set up the file descriptor. The bug has
3085 been fixed by making things happen in the correct order.
3086
3087
3088Exim version 4.40
3089-----------------
3090
3091 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3092 before the connection was closed, thus losing the rejection response.
3093
3094 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3095 some early Solaris releases, but causes trouble in current releases where
3096 socklen_t is defined.
3097
3098 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3099 always exist.
3100
3101 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3102 configured.
3103
3104 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3105 that releasing the top of it at the end releases what was used for sub-
3106 expansions (unless the block got too big). However, discard this block if
3107 the first thing is a variable or header, so that we can use its block when
3108 it is dynamic (useful for very large $message_headers, for example).
3109
3110 6. Lookups now cache *every* query, not just the most recent. A new, separate
3111 store pool is used for this. It can be recovered when all lookup caches are
3112 flushed. Lookups now release memory at the end of their result strings.
3113 This has involved some general refactoring of the lookup sources.
3114
3115 7. Some code has been added to the store_xxx() functions to reduce the amount
3116 of flapping under certain conditions.
3117
3118 8. log_incoming_interface used to affect only the <= reception log lines. Now
3119 it causes the local interface and port to be added to several more SMTP log
3120 lines, for example "SMTP connection from", and rejection lines.
3121
3122 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3123
312410. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3125
312611. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3127 could be overwritten at the end of the current message (or the start of a
3128 new message if it was set in a HELO ACL). The value is now preserved for
3129 the duration of the SMTP connection.
3130
313112. If a transport had a headers_rewrite setting, and a matching header line
3132 contained an unqualified address, that address was qualified, even if it
3133 did not match any rewriting rules. The underlying bug was that the values
3134 of the flags that permit the existence of unqualified sender and recipient
3135 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3136 non-local messages, and by -bnq for local messages) were not being
3137 preserved with the message after it was received.
3138
313913. When Exim was logging an SMTP synchronization error, it could sometimes log
3140 "next input=" as part of the text comprising the host identity instead of
3141 the correct text. The code was using the same buffer for two different
3142 strings. However, depending on which order the printing function evaluated
3143 its arguments, the bug did not always show up. Under Linux, for example, my
3144 test suite worked just fine.
3145
314614. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3147 doesn't work with some older versions of Perl. It has been changed to "my",
3148 which in any case is probably the better facility to use.
3149
315015. A really picky compiler found some instances of statements for creating
3151 error messages that either had too many or two few arguments for the format
3152 string.
3153
315416. The size of the buffer for calls to the DNS resolver has been increased
3155 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3156 for addresses that have a lot of PTR records. This alleviates a problem; it
3157 does not fully solve it.
3158
315917. A dnsdb lookup for PTR records that receives more data than will fit in the
3160 buffer now truncates the list and logs the incident, which is the same
3161 action as happens when Exim is looking up a host name and its aliases.
3162 Previously in this situation something unpredictable would happen;
3163 sometimes it was "internal error: store_reset failed".
3164
316518. If a server dropped the connection unexpectedly when an Exim client was
3166 using GnuTLS and trying to read a response, the client delivery process
3167 crashed while trying to generate an error log message.
3168
316919. If a "warn" verb in an ACL added multiple headers to a message in a single
3170 string, for example:
3171
3172 warn message = H1: something\nH2: something
3173
3174 the text was added as a single header line from Exim's point of view
3175 though it ended up OK in the delivered message. However, searching for the
3176 second and subsequent header lines using $h_h2: did not work. This has been
3177 fixed. Similarly, if a system filter added multiple headers in this way,
3178 the routers could not see them.
3179
318020. Expanded the error message when iplsearch is called with an invalid key to
3181 suggest using net-iplsearch in a host list.
3182
318321. When running tests using -bh, any delays imposed by "delay" modifiers in
3184 ACLs are no longer actually imposed (and a message to that effect is
3185 output).
3186
318722. If a "gecos" field in a passwd entry contained escaped characters, in
3188 particular, if it contained a \" sequence, Exim got it wrong when building
3189 a From: or a Sender: header from that name. A second bug also caused
3190 incorrect handling when an unquoted " was present following a character
3191 that needed quoting.
3192
319323. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3194 was not being matched caselessly.
3195
319624. Arranged for all hyphens in the exim.8 source to be escaped with
3197 backslashes.
3198
319925. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3200 properly. Recipient callout cache records were still being keyed to include
3201 the sender, even when use_sender was set false. This led to far more
3202 callouts that were necessary. The sender is no longer included in the key
3203 when use_sender is false.
3204
320526. Added "control = submission" modifier to ACLs.
3206
320727. Added the ${base62d: operator to decode base 62 numbers.
3208
320928. dnsdb lookups can now access SRV records.
3210
321129. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3212 the configuration file.
3213
321430. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3215 (-v) mode. This makes the output for a verbose queue run more intelligible.
3216
321731. Added a use_postmaster feature to recipient callouts.
3218
321932. Added the $body_zerocount variable, containing the number of binary zero
3220 bytes in the message body.
3221
322233. The time of last modification of the "new" subdirectory is now used as the
3223 "mailbox time last read" when there is a quota error for a maildir
3224 delivery.
3225
322634. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3227
322835. Added +ignore_unknown as a special item in host lists.
3229
323036. Code for decoding IPv6 addresses in host lists is now included, even if
3231 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3232 address was recognized as an IP address, but was then not correctly decoded
3233 into binary, causing unexpected and incorrect effects when compared with
3234 another IP address.
3235
3236
3237Exim version 4.34
3238-----------------
3239
3240 1. Very minor rewording of debugging text in manualroute to say "list of
3241 hosts" instead of "hostlist".
3242
3243 2. If verify=header_syntax was set, and a header line with an unqualified
3244 address (no domain) and a large number of spaces between the end of the
3245 name and the colon was received, the reception process suffered a buffer
3246 overflow, and (when I tested it) crashed. This was caused by some obsolete
3247 code that should have been removed. The fix is to remove it!
3248
3249 3. When running in the test harness, delay a bit after writing a bounce
3250 message to get a bit more predictability in the log output.
3251
3252 4. Added a call to search_tidyup() just before forking a reception process. In
3253 theory, someone could use a lookup in the expansion of smtp_accept_max_
3254 per_host which, without the tidyup, could leave open a database connection.
3255
3256 5. Added the variables $recipient_data and $sender_data which get set from a
3257 lookup success in an ACL "recipients" or "senders" condition, or a router
3258 "senders" option, similar to $domain_data and $local_part_data.
3259
3260 6. Moved the writing of debug_print from before to after the "senders" test
3261 for routers.
3262
3263 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3264 problems for message scanning, either using a data ACL, or using
3265 local_scan() because the Received: header was not generated till after they
3266 were called (in order to set the time as the time of reception completion).
3267 I have revised the way this works. The header is now generated after the
3268 body is received, but before the ACL or local_scan() are called. After they
3269 are run, the timestamp in the header is updated.
3270
3271
3272Exim version 4.33
3273-----------------
3274
3275 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3276 before starting a queue runner without re-exec. This happened only when
3277 deliver_drop_privilege was set or when the Exim user was set to root. The
3278 effect of the bug was that timeouts during subsequent deliveries caused
3279 crashes instead of being properly handled. The handler is now left at its
3280 default (and expected) setting.
3281
3282 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3283 message, again when deliver_drop_privilege is set or Exim is run as root.
3284 The bug described in (1) was not present in this case, but the tidying up
3285 of the other signals was missing. I have made the two cases consistent.
3286
3287 3. The ignore_target_hosts setting on a manualroute router was being ignored
3288 for hosts that were looked up using the /MX notation.
3289
3290 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3291 in domain lists.
3292
3293 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3294 operated on the sender address. After changing the $sender_address to <>
3295 for the sender address verify, Exim was re-instated it as the original
3296 (before rewriting) address, but remembering that it had rewritten it, so it
3297 wasn't rewriting it again. This bug also had the effect of breaking the
3298 sender address verification caching when the sender address was rewritten.
3299
3300 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3301 This has been changed so that if the ip literal address matches
3302 ignore_target_hosts, the router declines.
3303
3304 7. Added expansion conditions match_domain, match_address, and match_local_
3305 part (NOT match_host).
3306
3307 8. The placeholder for the Received: header didn't have a length field set.
3308
3309 9. Added code to Exim itself and to exim_lock to test for a specific race
3310 condition that could lead to file corruption when using MBX delivery. The
3311 issue is with the lockfile that is created in /tmp. If this file is removed
3312 after a process has opened it but before that process has acquired a lock,
3313 there is the potential for a second process to recreate the file and also
3314 acquire a lock. This could lead to two Exim processes writing to the file
3315 at the same time. The added code performs the same test as UW imapd; it
3316 checks after acquiring the lock that its file descriptor still refers to
3317 the same named file.
3318
331910. The buffer for building added header lines was of fixed size, 8192 bytes.
3320 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3321 when Exim is built.
3322
332311. Added the smtp_active_hostname option. If used, this will typically be made
3324 to depend on the incoming interface address. Because $interface_address is
3325 not set up until the daemon has forked a reception process, error responses
3326 that can happen earlier (such as "too many connections") no longer contain
3327 a host name.
3328
332912. If an expansion in a condition on a "warn" statement fails because a lookup
3330 defers, the "warn" statement is abandoned, and the next ACL statement is
3331 processed. Previously this caused the whole ACL to be aborted.
3332
333313. Added the iplsearch lookup type.
3334
333514. Added ident_timeout as a log selector.
3336
333715. Added tls_certificate_verified as a log selector.
3338
333916. Added a global option tls_require_ciphers (compare the smtp transport
3340 option of the same name). This controls incoming TLS connections.
3341
334217. I finally figured out how to make tls_require_ciphers do a similar thing
3343 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3344 before starting the TLS session.
3345
334618. Tabs are now shown as \t in -bP output.
3347
334819. If the log selector return_path_on_delivery was set, Exim crashed when
3349 bouncing a message because it had too many Received: header lines.
3350
335120. If two routers both had headers_remove settings, and the first one included
3352 a superfluous trailing colon, the final name in the first list and the
3353 first name in the second list were incorrectly joined into one item (with a
3354 colon in the middle).
3355
3356
3357Exim version 4.32
3358-----------------
3359
3360 1. Added -C and -D options to the exinext utility, mainly to make it easier
3361 to include in the automated testing, but these could be helpful when
3362 multiple configurations are in use.
3363
3364 2. The exinext utility was not formatting the output nicely when there was
3365 an alternate port involved in the retry record key, nor when there was a
3366 message id as well (for retries that were specific to a specific message
3367 and a specific host). It was also confused by IPv6 addresses, because of
3368 the additional colons they contain. I have fixed the IPv4 problem, and
3369 patched it up to do a reasonable job for IPv6.
3370
3371 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3372 delivery, the log line now contains "pipelined" if PIPELINING was used.
3373
3374 4. An SMTP transport process used to panic and die if the bind() call to set
3375 an explicit outgoing interface failed. This has been changed; it is now
3376 treated in the same way as a connect() failure.
3377
3378 5. A reference to $sender_host_name in the part of a conditional expansion
3379 that was being skipped was still causing a DNS lookup. This no longer
3380 occurs.
3381
3382 6. The def: expansion condition was not recognizing references to header lines
3383 that used bh_ and bheader_.
3384
3385 7. Added the _cache feature to named lists.
3386
3387 8. The code for checking quota_filecount in the appendfile transport was
3388 allowing one more file than it should have been.
3389
3390 9. For compatibility with Sendmail, the command line option
3391
3392 -prval:sval
3393
3394 is equivalent to
3395
3396 -oMr rval -oMs sval
3397
3398 and sets the incoming protocol and host name (for trusted callers). The
3399 host name and its colon can be omitted when only the protocol is to be set.
3400 Note the Exim already has two private options, -pd and -ps, that refer to
3401 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3402 "s", but I don't think that's a major issue.
3403
340410. A number of refactoring changes to the code, none of which should affect
3405 Exim's behaviour:
3406
3407 (a) The number of logging options was getting close to filling up the
3408 32-bit word that was used as a bit map. I have split them into two classes:
3409 those that are passed in the argument to log_write(), and those that are
3410 only ever tested independently outside of that function. These are now in
3411 separate 32-bit words, so there is plenty of room for expansion again.
3412 There is no change in the user interface or the logging behaviour.
3413
3414 (b) When building, for example, log lines, the code previously used a
3415 macro that called string_cat() twice, in order to add two strings. This is
3416 not really sufficiently general. Furthermore, there was one instance where
3417 it was actually wrong because one of the argument was used twice, and in
3418 one call a function was used. (As it happened, calling the function twice
3419 did not affect the overall behaviour.) The macro has been replaced by a
3420 function that can join an arbitrary number of extra strings onto a growing
3421 string.
3422
3423 (c) The code for expansion conditions now uses a table and a binary chop
3424 instead of a serial search (which was left over from when there were very
3425 few conditions). Also, it now recognizes conditions like "pam" even when
3426 the relevant support is not compiled in: a suitably worded error message is
3427 given if an attempt is made to use such a condition.
3428
342911. Added ${time_interval:xxxxx}.
3430
343112. A bug was causing one of the ddress fields not to be passed back correctly
3432 from remote delivery subprocesses. The field in question was not being
3433 subsequently used, so this caused to problems in practice.
3434
343513. Added new log selectors queue_time and deliver_time.
3436
343714. Might have fixed a bug in maildirsizefile handling that threw up
3438 "unexpected character" debug warnings, and recalculated the data
3439 unnecessarily. In any case, I expanded the warning message to give more
3440 information.
3441
344215. Added the message "Restricted characters in address" to the statements in
3443 the default ACL that block characters like @ and % in local parts.
3444
344516. Change 71 for release 4.31 proved to be much less benign that I imagined.
3446 Three changes have been made:
3447
3448 (a) There was a serious bug; a negative response to MAIL caused the whole
3449 recipient domain to be cached as invalid, thereby blocking all messages
3450 to all local parts at the same domain, from all senders. This bug has
3451 been fixed. The domain is no longer cached after a negative response to
3452 MAIL if the sender used is not empty.
3453
3454 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3455 been restored.
3456
3457 (c) A new callout option, "use_sender" has been added for people who want
3458 the modified behaviour.
3459
3460
3461Exim version 4.31
3462-----------------
3463
3464 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3465 Larry Rosenman.
3466
3467 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3468 indeed breaks things for older releases.
3469
3470 3. Added additional logging to the case where there is a problem reading data
3471 from a filter that is running in a subprocess using a pipe, in order to
3472 try to track down a specific problem.
3473
3474 4. Testing facility fudge: when running in the test harness and attempting
3475 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3476 getting "No route to host". Convert this to a timeout.
3477
3478 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3479 warning.
3480
3481 6. Some OS don't have socklen_t but use size_t instead. This affects the
3482 fifth argument of getsockopt() amongst other things. This is now
3483 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3484 can be set for individual OS. I have set it for SunOS5, OSF1, and
3485 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3486 some earlier ones do not.
3487
3488 7. Change 4.30/15 was not doing the test caselessly.
3489
3490 8. The standard form for an IPv6 address literal was being rejected by address
3491 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3492 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3493 this, as well as the form without the "IPv6" on the front (but only when
3494 address literals are enabled, of course).
3495
3496 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3497
349810. Exim crashed if a message with an empty sender address specified by -f
3499 encountered a router with an errors_to setting. This could be provoked only
3500 by a command such as
3501
3502 exim -f "" ...
3503
3504 where an empty string was supplied; "<>" did not hit this bug.
3505
350611. Installed PCRE release 4.5.
3507
350812. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3509 remained set. It is now erased.
3510
351113. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3512 times from message ids (which are base 36 rather than the normal 62).
3513
351414. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3515 were being counted as actual protocol errors, and logged if the log
3516 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3517 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3518 and DATA following a set of rejected RCPTs do not count as protocol errors.
3519 In other words, Exim assumes they were pipelined, though this may not
3520 actually be the case. Of course, in all cases the client gets an
3521 appropriate error code.
3522
352315. If a lookup fails in an ACL condition, a message about the failure may
3524 be available; it is used if testing the ACL cannot continue, because most
3525 such messages specify what the cause of the deferral is. However, some
3526 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3527 that caused an old message to be retained and used if a later statement
3528 caused a defer, replacing the real cause of the deferral.
3529
353016. If an IP address had so many PTR records that the DNS lookup buffer
3531 was not large enough to hold them, Exim could crash while trying to process
3532 the truncated data. It now detects and logs this case.
3533
353417. Further to 4.21/58, another change has been made: if (and only if) the
3535 first line of a message (the first header line) ends with CRLF, a bare LF
3536 in a subsequent header line has a space inserted after it, so as not to
3537 terminate the header.
3538
353918. Refactoring: tidied an ugly bit of code in appendfile that copied data
3540 unnecessarily, used atoi() instead of strtol(), and didn't check the
3541 termination when getting file sizes from file names by regex.
3542
354319. Completely re-implemented the support for maildirsize files, in the light
3544 of a number of problems with the previous contributed implementation
3545 (4.30/29). In particular:
3546
3547 . If the quota is zero, the maildirsize file is maintained, but no quota is
3548 imposed.
3549
3550 . If the maildir directory does not exist, it is created before any attempt
3551 to write a maildirsize file.
3552
3553 . The quota value in the file is just a cache; if the quota is changed in
3554 the transport, the new value overrides.
3555
3556 . A regular expression is available for excluding directories from the
3557 count.
3558
355920. The autoreply transport checks the characters in options that define the
3560 message's headers; it allows continued headers, but it was checking with