POSIX allows open() to be a macro; guard against it.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
19897d52 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.529 2007/08/29 14:02:22 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
ddea74fa 91PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
92 characters?) which causes problems in log lines. The DN values are now
93 passed through string_printing() before being added to log lines.
94
ddea74fa 95PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
96 and InterBase are left for another time.)
97
ddea74fa
PH
98PH/21 Added message_body_newlines option.
99
ce9f225c
PH
100PH/22 Guard against possible overflow in moan_check_errorcopy().
101
19897d52
PH
102PH/23 POSIX allows open() to be a macro; guard against that.
103
eb4c0de6 104
b4ed4da0
PH
105Exim version 4.67
106-----------------
107
22ad45c9
MH
108MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
109 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
110 Jan Srzednicki.
111
b4ed4da0
PH
112PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
113 issue a MAIL command.
114
431b7361
PH
115PH/02 In an ACL statement such as
116
117 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
118
119 if a client was not listed at all, or was listed with a value other than
120 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
121 the condition was not true (as it should be), so access was not denied.
122 The bug was that the ! inversion was incorrectly passed on to the second
123 item. This has been fixed.
124
125PH/03 Added additional dnslists conditions == and =& which are different from
126 = and & when the dns lookup returns more than one IP address.
127
83da1223
PH
128PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
129 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
130
54fc8428
PH
131PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
132 FSYNC, which compiles an option called disable_fsync that allows for
133 bypassing fsync(). The documentation is heavily laced with warnings.
134
34c5e8dd
SC
135SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
136
bbe15da8
PH
137PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
138 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
139 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
140 including adding "make clean"; (3) Added -fPIC when compiling the test
141 dynamically loaded module, to get rid of a warning.
142
0e8a9471
MH
143MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
144 message fails, move_frozen_messages = true and ignore_bounce_errors_after
145 = 0s. The bug is otherwise harmless.
146
f0872424
PH
147PH/07 There was a bug in the dovecot authenticator such that the value of
148 $auth1 could be overwritten, and so not correctly preserved, after a
149 successful authentication. This usually meant that the value preserved by
150 the server_setid option was incorrect.
151
b01dd148
PH
152PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
153
6bf342e1
PH
154PH/09 Installed PCRE release 7.0.
155
273f34d0
PH
156PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
157 run for batched SMTP input. It is now run at the start of every message
158 in the batch. While fixing this I discovered that the process information
159 (output by running exiwhat) was not always getting set for -bs and -bS
160 input. This is fixed, and it now also says "batched" for BSMTP.
161
cf8b11a5
PH
162PH/11 Added control=no_pipelining.
163
41c7c167
PH
164PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
165 patch, slightly modified), and move the expansion of helo_data till after
166 the connection is made in the smtp transport (so it can use these
167 values).
168
9c57cbc0
PH
169PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
170
f3f065bb
PH
171PH/14 Added log_selector = +pid.
172
047bdd8c
PH
173PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
174
0ce9abe6
PH
175PH/16 Add ${if forany and ${if forall.
176
0e22dfd1
PH
177PH/17 Added dsn_from option to vary the From: line in DSNs.
178
4c590bd1
PH
179PH/18 Flush SMTP output before performing a callout, unless control =
180 no_callout_flush is set.
181
09945f1e
PH
182PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
183 was true (the default) a successful delivery failed to delete the retry
184 item, thus causing premature timeout of the address. The bug is now
185 fixed.
186
c51b8e75
PH
187PH/20 Added hosts_avoid_pipelining to the smtp transport.
188
e28326d8
PH
189PH/21 Long custom messages for fakedefer and fakereject are now split up
190 into multiline reponses in the same way that messages for "deny" and
191 other ACL rejections are.
192
75b1493f
PH
193PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
194 with slight modification.
195
7c5214ec
PH
196PH/23 Applied sieve patches from the maintainer "tracking the latest notify
197 draft, changing the syntax and factoring some duplicate code".
198
4311097e
PH
199PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
200 for deliveries of the second and subsequent messages over the same SMTP
201 connection.
202
29f89cad
PH
203PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
204 ${reduce, with only minor "tidies".
205
5e687460
SC
206SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
207
c3611384
PH
208PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
209 expansion side effects.
210
5a11a7b4
PH
211PH/27 When a message times out after an over-quota error from an Exim-imposed
212 quota, the bounce message says "mailbox is full". This message was not
213 being given when it was a system quota that was exceeded. It now should
214 be the same.
215
0e20aff9
MH
216MH/03 Made $recipients available in local_scan(). local_scan() already has
217 better access to the recipient list through recipients_list[], but
218 $recipients can be useful in postmaster-provided expansion strings.
219
ca86f471
PH
220PH/28 The $smtp_command and $smtp_command_argument variables were not correct
221 in the case of a MAIL command with additional options following the
222 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
223 were accidentally chopped off.
224
a14e5636
PH
225PH/29 SMTP synchronization checks are implemented when a command is read -
226 there is a check that no more input is waiting when there shouldn't be
227 any. However, for some commands, a delay in an ACL can mean that it is
228 some time before the response is written. In this time, more input might
229 arrive, invalidly. So now there are extra checks after an ACL has run for
230 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
231 pipelining has not been advertised.
232
ec95d1a6
PH
233PH/30 MH's patch to allow iscntrl() characters to be list separators.
234
42855d71
PH
235PH/31 Unlike :fail:, a custom message specified with :defer: was not being
236 returned in the SMTP response when smtp_return_error_details was false.
237 This has been fixed.
238
57c2c631
PH
239PH/32 Change the Dovecot authenticator to use read() and write() on the socket
240 instead of the C I/O that was originally supplied, because problems were
241 reported on Solaris.
242
58c01c94
PH
243PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
244 Exim which did not show up earlier: it was assuming that a call to
245 SSL_CTX_set_info_callback() might give an error value. In fact, there is
246 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
247 was a macro that became an assignment, so it seemed to work. This has
248 changed to a proper function call with a void return, hence the compile
249 error. Exim's code has been fixed.
250
dee5a20a
PH
251PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
252 cpus.
253
d2ee6114
PH
254PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
255
b2d5182b
PH
256PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
257
79749a79
PH
258PH/37 If a message is not accepted after it has had an id assigned (e.g.
259 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
260 "Completed" line in the log. When some messages of this type were
261 selected by exigrep, they were listed as "not completed". Others were
262 picked up by some special patterns. I have improved the selection
263 criteria to be more general.
79749a79 264
c456d9bb
PH
265PH/38 The host_find_failed option in the manualroute router can now be set
266 to "ignore", to completely ignore a host whose IP address cannot be
267 found. If all hosts are ignored, the behaviour is controlled by the new
268 host_all_ignored option.
269
cd9868ec
PH
270PH/39 In a list of hosts for manualroute, if one item (either because of multi-
271 homing or because of multiple MX records with /mx) generated more than
272 one IP address, and the following item turned out to be the local host,
273 all the secondary addresses of the first item were incorrectly removed
274 from the list, along with the local host and any following hosts (which
275 is what is supposed to happen).
276
ebeaf996
PH
277PH/40 When Exim receives a message, it writes the login name, uid, and gid of
278 whoever called Exim into the -H file. In the case of the daemon it was
279 behaving confusingly. When first started, it used values for whoever
280 started the daemon, but after a SIGHUP it used the Exim user (because it
281 calls itself on a restart). I have changed the code so that it now always
282 uses the Exim user.
283
2679d413
PH
284PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
285 message are rejected with the same error (e.g. no authentication or bad
286 sender address), and a DATA command is nevertheless sent (as can happen
287 with PIPELINING or a stupid MUA), the error message that was given to the
288 RCPT commands is included in the rejection of the DATA command. This is
289 intended to be helpful for MUAs that show only the final error to their
290 users.
291
84024b72
PH
292PH/42 Another patch from the Sieve maintainer.
293
8005d38e
SC
294SC/02 Eximstats - Differentiate between permanent and temporary rejects.
295 Eximstats - Fixed some broken HTML links and added missing column headers
296 (Jez Hancock).
297 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
298 columns for Rejects, Temp Rejects, Ham, and Spam rows.
299
3298c6c6
SC
300SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
301
a43a27c5
PH
302PH/43 Yet another patch from the Sieve maintainer.
303
58eb016e 304PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
305 the response to the final '.' that terminates a message, but only in the
306 case where the client has not sent further data following the '.'
307 (unfortunately, this is allowed). However, in many cases there won't be
308 any further data because there won't be any more messages to send. A call
309 to select() can be used: if it shows that the input is "ready", there is
310 either input waiting, or the socket has been closed. An attempt to read
311 the next input character can distinguish the two cases. Previously, Exim
58eb016e 312 would have sent an OK response which the client would never have see.
563b63fa
PH
313 This could lead to message repetition. This fix should cure that, at
314 least in a lot of common cases.
58eb016e 315
b43a74ea
PH
316PH/45 Do not advertise STARTTLS in response to HELP unless it would be
317 advertised in response to EHLO.
318
b4ed4da0 319
5dd1517f
PH
320Exim version 4.66
321-----------------
322
323PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
324 fixed by 4.65/MH/01 (is this a record?) are fixed:
325
326 (i) An empty string was always treated as zero by the numeric comparison
327 operators. This behaviour has been restored.
328
329 (ii) It is documented that the numeric comparison operators always treat
330 their arguments as decimal numbers. This was broken in that numbers
331 starting with 0 were being interpreted as octal.
332
333 While fixing these problems I realized that there was another issue that
334 hadn't been noticed. Values of message_size_limit (both the global option
335 and the transport option) were treated as octal if they started with 0.
336 The documentation was vague. These values are now always treated as
337 decimal, and I will make that clear in the documentation.
338
339
93cfa765
TK
340Exim version 4.65
341-----------------
342
343TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
344 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
345 versions. (#438)
346
d6066548
MH
347MH/01 Don't check that the operands of numeric comparison operators are
348 integers when their expansion is in "skipping" mode (fixes bug
349 introduced by 4.64-PH/07).
350
4362ff0d
PH
351PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
352 child addresses, Exim now panics and dies. Previously, because the count
353 is held in a short int, deliveries were likely to be lost. As such a
354 large number of recipients for a single message is ridiculous
355 (performance will be very, very poor), I have chosen to impose a limit
356 rather than extend the field.
357
93cfa765 358
944e9e9c
TF
359Exim version 4.64
360-----------------
aa41d2de 361
21d74bd9
TK
362TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
363 leftover -K file (the existence of which was triggered by #402).
364 While we were at it, introduced process PID as part of the -K
365 filename. This should rule out race conditions when creating
366 these files.
367
368TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
369 processing considerably. Previous code took too long for large mails,
370 triggering a timeout which in turn triggers #401.
371
372TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
373 in the DK code in transports.c. sendfile() is not really portable,
374 hence the _LINUX specificness.
944e9e9c
TF
375
376TF/01 In the add_headers option to the mail command in an Exim filter,
377 there was a bug that Exim would claim a syntax error in any
378 header after the first one which had an odd number of characters
379 in the field name.
380
2b1c6e3a
PH
381PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
382 callout verification, Exim cached a "reject" for the entire domain. This
383 is correct for most verifications, but it is not correct for a recipient
384 verification with use_sender or use_postmaster set, because in that case
385 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
386 case of MAIL FROM:<> rejection from other early rejections (e.g.
387 rejection of HELO). When verifying a recipient using a non-null MAIL
388 address, the cache is ignored if it shows MAIL FROM:<> rejection.
389 Whatever the result of the callout, the value of the domain cache is
390 left unchanged (for any other kind of callout, getting as far as trying
391 RCPT means that the domain itself is ok).
392
1f872c80
PH
393PH/02 Tidied a number of unused variable and signed/unsigned warnings that
394 gcc 4.1.1 threw up.
395
396PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
397 manifest itself as EPIPE rather than ECONNECT. When tidying away a
398 session, the daemon ignores ECONNECT errors and logs others; it now
399 ignores EPIPE as well.
400
d203e649
PH
401PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
402 (quoted-printable decoding).
403
cc2ed8f7 404PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 405 later the small subsequent patch to fix an introduced bug.
f951fd57 406
ddfcd446
PH
407PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
408
d45b1de8
PH
409PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
410
411PH/08 An error is now given if message_size_limit is specified negative.
412
38a0a95f 413PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 414 to be given (somewhat) arbitrary names.
38a0a95f 415
a2405d83
JJ
416JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
417 in 4.64-PH/09.
418
419JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
420 miscellaneous code fixes
421
6ea85e9a
PH
422PH/10 Added the log_reject_target ACL modifier to specify where to log
423 rejections.
424
26da7e20
PH
425PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
426 hostname. This is wrong, because it relates to the incoming message (and
427 probably the interface on which it is arriving) and not to the outgoing
428 callout (which could be using a different interface). This has been
429 changed to use the value of the helo_data option from the smtp transport
430 instead - this is what is used when a message is actually being sent. If
431 there is no remote transport (possible with a router that sets up host
432 addresses), $smtp_active_hostname is used.
6ea85e9a 433
14aa5a05 434PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 435 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
436 (a) The code assumed that strncpy() returns a negative number on buffer
437 overflow, which isn't the case. Replaced with Exim's string_format()
438 function.
439 (b) There were several signed/unsigned issues. I just did the minimum
440 hacking in of casts. There is scope for a larger refactoring.
441 (c) The code used strcasecmp() which is not a standard C function.
442 Replaced with Exim's strcmpic() function.
443 (d) The code set only $1; it now sets $auth1 as well.
444 (e) A simple test gave the error "authentication client didn't specify
445 service in request". It would seem that Dovecot has changed its
446 interface. Fortunately there's a specification; I followed it and
447 changed what the client sends and it appears to be working now.
448
ff75a1f7
PH
449PH/13 Added $message_headers_raw to provide the headers without RFC 2047
450 decoding.
451
e6f6568e
PH
452PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
453 address A is aliased to B and C, where B exists and C does not. Without
454 -v the output is "A verified" because verification stops after a
455 successful redirection if more than one address is generated. However,
456 with -v the child addresses are also verified. Exim was outputting "A
457 failed to verify" and then showing the successful verification for C,
458 with its parentage. It now outputs "B failed to verify", showing B's
459 parentage before showing the successful verification of C.
460
d6f6e0dc
PH
461PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
462 look up a TXT record in a specific list after matching in a combined
463 list.
464
322050c2
PH
465PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
466 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
467 they consult the DNS. I had assumed they would set it the way they
468 wanted; and indeed my experiments on Linux seem to show that in some
469 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
470 To be on the safe side, however, I have now made the interface to
471 host_find_byname() similar to host_find_bydns(), with an argument
472 containing the DNS resolver options. The host_find_byname() function now
473 sets these options at its start, just as host_find_bydns() does. The smtp
474 transport options dns_qualify_single and dns_search_parents are passed to
475 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
476 of host_find_byname() use the default settings of RES_DEFNAMES
477 (qualify_single) but not RES_DNSRCH (search_parents).
478
08955dd3
PH
479PH/17 Applied (a modified version of) Nico Erfurth's patch to make
480 spool_read_header() do less string testing, by means of a preliminary
481 switch on the second character of optional "-foo" lines. (This is
482 overdue, caused by the large number of possibilities that now exist.
483 Originally there were few.) While I was there, I also converted the
484 str(n)cmp tests so they don't re-test the leading "-" and the first
485 character, in the hope this might squeeze out yet more improvement.
486
1eccaa59
PH
487PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
488 flag allowing group syntax was set by the header_syntax check but not
489 turned off, possible causing trouble later; (2) The flag was not being
490 set at all for the header_verify test, causing "group"-style headers to
491 be rejected. I have now set it in this case, and also caused header_
492 verify to ignore an empty address taken from a group. While doing this, I
493 came across some other cases where the code for allowing group syntax
494 while scanning a header line wasn't quite right (mostly, not resetting
495 the flag correctly in the right place). These bugs could have caused
496 trouble for malformed header lines. I hope it is now all correct.
497
602e59e5
PH
498PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
499 with the "reply" argument non-NULL. The code, however (which originally
500 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
501 but it didn't always do it. This confused somebody who was copying the
502 code for some other use. I have removed all the tests.
503
411ef850
PH
504PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
505 feature that was used to support insecure browsers during the U.S. crypto
506 embargo. It requires special client support, and Exim is probably the
507 only MTA that supported it -- and would never use it because real RSA is
508 always available. This code has been removed, because it had the bad
509 effect of slowing Exim down by computing (never used) parameters for the
510 RSA_EXPORT functionality.
511
7befa435
PH
512PH/21 On the advice of Timo Sirainen, added a check to the dovecot
513 authenticator to fail if there's a tab character in the incoming data
514 (there should never be unless someone is messing about, as it's supposed
515 to be base64-encoded). Also added, on Timo's advice, the "secured" option
516 if the connection is using TLS or if the remote IP is the same as the
517 local IP, and the "valid-client-cert option" if a client certificate has
518 been verified.
519
48da4259 520PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
521 authenticators. This can be used for authorization after authentication
522 succeeds. (In the case of plaintext, it servers for both authentication
523 and authorization.)
524
48da4259
PH
525PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
526 if any retry times were supplied.
527
d1d5595c
PH
528PH/24 Exim crashed if verify=helo was activated during an incoming -bs
529 connection, where there is no client IP address to check. In this
530 situation, the verify now always succeeds.
531
0ef732d9
PH
532PH/25 Applied John Jetmore's -Mset patch.
533
328895cc
PH
534PH/26 Added -bem to be like -Mset, but loading a message from a file.
535
fd700877
PH
536PH/27 In a string expansion for a processed (not raw) header when multiple
537 headers of the same name were present, leading whitespace was being
538 removed from all of them, but trailing whitespace was being removed only
539 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
540 before concatenation. Completely empty headers in a concatenation (as
541 before) are ignored.
fd700877 542
8dce1a6f
PH
543PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
544 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
545
17af4a17
PH
546PH/29 [Removed. This was a change that I later backed out, and forgot to
547 correct the ChangeLog entry (that I had efficiently created) before
548 committing the later change.]
f6c332bd
PH
549
550PH/30 Exim was sometimes attempting to deliver messages that had suffered
551 address errors (4xx response to RCPT) over the same connection as other
552 messages routed to the same hosts. Such deliveries are always "forced",
553 so retry times are not inspected. This resulted in far too many retries
554 for the affected addresses. The effect occurred only when there were more
555 hosts than the hosts_max_try setting in the smtp transport when it had
556 the 4xx errors. Those hosts that it had tried were not added to the list
557 of hosts for which the message was waiting, so if all were tried, there
558 was no problem. Two fixes have been applied:
559
560 (i) If there are any address or message errors in an SMTP delivery, none
561 of the hosts (tried or untried) are now added to the list of hosts
562 for which the message is waiting, so the message should not be a
563 candidate for sending over the same connection that was used for a
564 successful delivery of some other message. This seems entirely
565 reasonable: after all the message is NOT "waiting for some host".
566 This is so "obvious" that I'm not sure why it wasn't done
567 previously. Hope I haven't missed anything, but it can't do any
568 harm, as the worst effect is to miss an optimization.
569
570 (ii) If, despite (i), such a delivery is accidentally attempted, the
571 routing retry time is respected, so at least it doesn't keep
572 hammering the server.
573
c1114884
PH
574PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
575 in ${readsocket because some servers need this prod.
576
7a0743eb
PH
577PH/32 Added some extra debug output when updating a wait-xxx database.
578
0d85fa3f
PH
579PH/33 The hint "could be header name not terminated by colon", which has been
580 given for certain expansion errors for a long time, was not being given
581 for the ${if def:h_colon_omitted{... case.
582
1bf43b78
PH
583PH/34 The spec says: "With one important exception, whenever a domain list is
584 being scanned, $domain contains the subject domain." There was at least
585 one case where this was not true.
586
520de300
PH
587PH/35 The error "getsockname() failed: connection reset by peer" was being
588 written to the panic log as well as the main log, but it isn't really
589 panic-worthy as it just means the connection died rather early on. I have
590 removed the panic log writing for the ECONNRESET error when getsockname()
591 fails.
592
48c7f9e2
PH
593PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
594 runs only) independently of the message's sender address. This meant
595 that, if the 4xx error was in fact related to the sender, a different
596 message to the same recipient with a different sender could confuse
597 things. In particualar, this can happen when sending to a greylisting
598 server, but other circumstances could also provoke similar problems.
599 I have changed the default so that the retry time for these errors is now
600 based a combination of the sender and recipient addresses. This change
601 can be overridden by setting address_retry_include_sender=false in the
602 smtp transport.
603
99ea1c86
PH
604PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
605 remote server are returned as part of bounce messages. This was not
606 happening for LMTP over a pipe (the lmtp transport), but now it is the
607 same for both kinds of LMTP.
608
a2042e78
PH
609PH/38 Despite being documented as not happening, Exim was rewriting addresses
610 in header lines that were in fact CNAMEs. This is no longer the case.
611
4fbcfc2e
PH
612PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
613 and queue runs started by the daemon processed all messages. This has
614 been fixed so that -R and -S can now usefully be given with -q<time>.
615
aa41d2de
PH
616PH/40 Import PCRE release 6.7 (fixes some bugs).
617
af561417
PH
618PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
619
3cc66b45
PH
620PH/42 Give an error if -q is specified more than once.
621
194cc0e4
PH
622PH/43 Renamed the variables $interface_address and $interface_port as
623 $received_ip_address and $received_port, to make it clear that these
624 values apply to message reception, and not to the outgoing interface when
625 a message is delivered. (The old names remain recognized, of course.)
626
a401ddaa
PH
627PH/44 There was no timeout on the connect() call when using a Unix domain
628 socket in the ${readsocket expansion. There now is.
629
4e88a19f
PH
630PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
631 be meaningful with "accept".
632
d7d7b289
SC
633SC/01 Eximstats V1.43
634 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
635
636SC/02 Eximstats V1.44
637 Use a glob alias rather than an array ref in the generated
638 parser. This improves both readability and performance.
639
640SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
641 Collect SpamAssassin and rejection statistics.
642 Don't display local sender or destination tables unless
643 there is data to show.
644 Added average volumes into the top table text output.
645
646SC/04 Eximstats V1.46
647 Collect data on the number of addresses (recipients)
648 as well as the number of messages.
649
650SC/05 Eximstats V1.47
651 Added 'Message too big' to the list of mail rejection
652 reasons (thanks to Marco Gaiarin).
653
654SC/06 Eximstats V1.48
655 Mainlog lines which have GMT offsets and are too short to
656 have a flag are now skipped.
657
658SC/07 Eximstats V1.49 (Alain Williams)
659 Added the -emptyok flag.
660
661SC/08 Eximstats V1.50
662 Fixes for obtaining the IP address from reject messages.
663
0ea2a468
JJ
664JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
665 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
666 whitesspace changes from 4.64-PH/27
667
668JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
669 match 4.64-PH/13
670
671JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
672 are found, allow negative numbers in numeric criteria)
673
674JJ/06 exipick.20061117.2, added new $message_body_missing variable
675
676JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
677 to match changes made in 4.64-PH/43
678
8a10f5a4
PH
679PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
680
30e18802
PH
681PH/47 Put in an explicit test for a DNS lookup of an address record where the
682 "domain" is actually an IP address, and force a failure. This locks out
683 those revolvers/nameservers that support "A-for-A" lookups, in
684 contravention of the specifications.
685
55728a4f
PH
686PH/48 When a host name was looked up from an IP address, and the subsequent
687 forward lookup of the name timed out, the host name was left in
688 $sender_host_name, contrary to the specification.
d7d7b289 689
d7837193
PH
690PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
691 restricted to single-key lookups, Exim was not diagnosing an error if
692 * or *@ was used with a query-style lookup.
693
87054a31
PH
694PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
695
ea2c01d2
MH
696MH/01 local_scan ABI version incremented to 1.1. It should have been updated
697 long ago, but noone interested enough thought of it. Let's just say that
698 the "1.1" means that there are some new functions that weren't there at
699 some point in the past.
700
e4fa6968
PH
701PH/51 Error processing for expansion failure of helo_data from an smtp
702 transport during callout processing was broken.
703
56f5d9bd
PH
704PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
705 tested/used via the -bh/-bhc/-bs options.
706
922e1c28
PH
707PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
708 bug, fixed in subsequent PCRE releases).
709
21eb6e72
PH
710PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
711 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
712
a0540757
PH
713PH/55 Check for a ridiculously long file name in exim_dbmbuild.
714
944e9e9c 715
478be7b0
SC
716Exim version 4.63
717-----------------
718
719SC/01 Use a glob alias rather than an array ref in eximstats generated
720 parser. This improves both readability and performance.
721
722SC/02 Collect SpamAssassin and rejection statistics in eximstats.
723 Don't display local sender or destination tables in eximstats unless
724 there is data to show.
725 Added average volumes into the eximstats top table text output.
726
727SC/03 Collect data on the number of addresses (recipients) as well
728 as the number of messages in eximstats.
729
2b965a65
TF
730TF/01 Correct an error in the documentation for the redirect router. Exim
731 does (usually) call initgroups() when daemonizing.
478be7b0 732
45b91596
PH
733TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
734 with consistent privilege compared to when running as a daemon.
478be7b0 735
c59f5781
TF
736TF/03 Note in the spec that $authenticated_id is not set for local
737 submissions from trusted users.
738
90fc3069
TF
739TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
740 Thanks to Dean Brooks <dean@iglou.com> for the patch.
741
6083aca0
TF
742TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
743 by adding some example configuration directives to the default
744 configuration file. A little bit of work is required to uncomment the
745 directives and define how usernames and passwords are checked, but
746 there is now a framework to start from.
747
765b530f
PH
748PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
749 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
750 without this. I don't know how relevant this is to other LDAP libraries.
751
4e167a8c
PH
752PH/02 Add the verb name to the "unknown ACL verb" error.
753
4608d683
PH
754PH/03 Magnus Holmgren's patch for filter_prepend_home.
755
b8dc3e4a
PH
756PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
757
5418e93b
PH
758PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
759 directory not expanded when it should be if an expanded home directory
760 was set for the address (which is overridden by the transport).
761
b4a9bda2
PH
762PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
763 libradius.
764
45b91596
PH
765PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
766 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
767 because it is too late at that time, and has no effect.
768
5547e2c5
PH
769PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
770 security issue with \' (bugzilla #107). I could not use the
771 PQescapeStringConn() function, because it needs a PGconn value as one of
772 its arguments.
773
dbcef0ea
PH
774PH/08 When testing addresses using -bt, indicate those final addresses that
775 are duplicates that would not cause an additional delivery. At least one
776 person was confused, thinking that -bt output corresponded to deliveries.
777 (Suppressing duplicates isn't a good idea as you lose the information
778 about possibly different redirections that led to the duplicates.)
779
25257489
PH
780PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
781 systems where poll() doesn't work, in particular OS X.
782
c816d124
PH
783PH/10 Added more information to debugging output for retry time not reached.
784
a9ccd69a
PH
785PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
786 operations in malware.c.
787
75fa1910
PH
788PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
789 signatures.
790
a7d7aa58
PH
791PH/13 If write_rejectlog was set false when logging was sent to syslog with
792 syslog_duplication set false, log lines that would normally be written
793 both the the main log and to the reject log were not written to syslog at
794 all.
795
42119b09
PH
796PH/14 In the default configuration, change the use of "message" in ACL warn
797 statements to "add_header".
798
41609df5
PH
799PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
800 not followed by a command (e.g. "seen endif").
801
a5bd321b
PH
802PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
803 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
804 latter.
805
e85a7ad5 806PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
807 so that it is now:
808
e85a7ad5
PH
809 ${if or { \
810 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
811 { match{$h_precedence:}{(?i)bulk|list|junk} } \
812 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
813 }{no}{yes}}
814
e85a7ad5
PH
815 The Auto-Submitted: and various List- headers are standardised, whereas I
816 don't think Precedence: ever was.
5dff5817 817
d8fe1c03
PH
818PH/18 Refactored debugging code in route_finduser() to show more information,
819 in particular, the error code if getpwnam() issues one.
820
16282d2b
PH
821PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
822 This is apparently needed in addition to the PH/07 change above to avoid
823 any possible encoding problems.
824
35d40a98
PH
825PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
826 but not after initializing Perl.
827
034d99ab
PH
828PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
829 output them only if debugging. By default they are written stderr,
830 apparently, which is not desirable.
831
6ec97b1b
PH
832PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
833 queries.
834
e22ca4ac
JJ
835JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
836 --not options
837
838JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
839
33d73e3b
PH
840PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
841 authenticated or an ident call has been made. Suppress the default
842 values for $authenticated_id and $authenticated_sender (but permit -oMai
843 and -oMas) when testing with -bh.
844
9ecb03f3
PH
845PH/24 Re-jigged the order of the tests in the default configuration so that the
846 tests for valid domains and recipients precede the DNS black list and CSA
847 tests, on the grounds that those ones are more expensive.
848
084efe8d
PH
849PH/25 Exim was not testing for a space following SMTP commands such as EHLO
850 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
851 This bug exists in every version of Exim that I still have, right back to
852 0.12.
853
366fc9f0
PH
854PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
855 However, an attempt to turn on case-sensitivity in a regex key by
856 including (?-i) didn't work because the subject string was already
857 lowercased, and the effects were non-intuitive. It turns out that a
858 one-line patch can be used to allow (?-i) to work as expected.
859
c59f5781 860
c887c79e
TF
861Exim version 4.62
862-----------------
863
864TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
865 other effects) broke the use of negated acl sub-conditions.
866
1cce3af8
PH
867PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
868 patch).
869
afb3eaaf
PH
870PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
871 "Deny" causes Exim to reject the incoming connection with a 554 error.
872 Unfortunately, if there is a major crisis, such as a disk failure,
873 tcp-wrappers gives "deny", whereas what one would like would be some
874 kind of temporary error. A kludge has been added to help with this.
875 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
876 554 error is used if errno is still zero or contains ENOENT (which occurs
877 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
878 451 error is used.
879
e173618b
PH
880PH/03 Add -lutil to the default FreeBSD LIBS setting.
881
dd16e114
PH
882PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
883 errors. Otherwise a message that provokes a temporary error (when other
884 messages do not) can cause a whole host to time out.
885
f7fd3850
PH
886PH/05 Batch deliveries by appendfile and pipe transports did not work when the
887 addresses were routed directly to files or pipes from a redirect router.
888 File deliveries just didn't batch; pipe deliveries might have suffered
889 odd errors.
890
d87df92c
PH
891PH/06 A failure to get a lock for a hints database would erroneously always say
892 "Failed to get write lock", even when it was really a read lock.
893
7e9f683d
PH
894PH/07 The appendfile transport was creating MBX lock files with a fixed mode
895 of 0600. This has been changed to use the value of the lockfile_mode
896 option (which defaults to 0600).
897
bfad5236
PH
898PH/08 Applied small patch from the Sieve maintainer.
899
01c490df
PH
900PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
901 folder from quota calculations, a direct delivery into this folder messed
902 up the contents of the maildirsize file. This was because the regex was
903 used only to exclude .Trash (or whatever) when the size of the mailbox
904 was calculated. There was no check that a delivery was happening into an
905 excluded directory. This bug has been fixed by ignoring all quota
906 processing for deliveries into excluded directories.
907
d6629cdc
PH
908PH/10 Added the maildirfolder_create_regex option to appendfile.
909
1cce3af8 910
214e2000
PH
911Exim version 4.61
912-----------------
913
914PH/01 The code for finding all the local interface addresses on a FreeBSD
915 system running IPv6 was broken. This may well have applied to all BSD
916 systems, as well as to others that have similar system calls. The broken
917 code found IPv4 interfaces correctly, but gave incorrect values for the
918 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
919 that it would not match correctly against @[] and not recognize the IPv6
920 addresses as local.
921
f9daeae0
PH
922PH/02 The ipliteral router was not recognizing addresses of the form user@
923 [ipv6:....] because it didn't know about the "ipv6:" prefix.
924
7e66e54d
PH
925PH/03 Added disable_ipv6.
926
c8ea1597
PH
927PH/04 Changed $reply_address to use the raw form of the headers instead of the
928 decoded form, because it is most often used to construct To: headers
929 lines in autoreplies, and the decoded form may well be syntactically
930 invalid. However, $reply_address has leading white space removed, and all
931 newlines turned into spaces so that the autoreply transport does not
932 grumble.
933
911f6fde
PH
934PH/05 If group was specified without a user on a router, and no group or user
935 was specified on a transport, the group from the router was ignored.
936
47ca6d6c
PH
937PH/06 Increased the number of ACL variables to 20 of each type, and arranged
938 for visible compile-time settings that can be used to change these
939 numbers, for those that want even more. Backwards compatibility with old
940 spool files has been maintained. However, going back to a previous Exim
941 release will lost any variables that are in spool files.
942
ed0e9820
PH
943PH/07 Two small changes when running in the test harness: increase delay when
944 passing a TCP/IP connection to a new process, in case the original
945 process has to generate a bounce, and remove special handling of
946 127.0.0.2 (sic), which is no longer necessary.
947
eff37e47
PH
948PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
949 be the same on different OS.
950
1921d2ea
PH
951PH/09 Moved a debug statement in filter processing to avoid a race problem when
952 testing.
953
b3f69ca8
JJ
954JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
955 whether --show-vars was specified or not
956
957JJ/02 exipick: Added support for new ACL variable spool format introduced
958 in 4.61-PH/06
959
424a1c63
PH
960PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
961 syntactically invalid From: or Reply-to: line, and a filter used this to
962 generate an autoreply, and therefore failed to obtain an address for the
963 autoreply, Exim could try to deliver to a non-existent relative file
964 name, causing unrelated and misleading errors. What now happens is that
965 it logs this as a hard delivery error, but does not attempt to create a
966 bounce message.
967
7a100415
PH
968PH/11 The exinext utility has a -C option for testing purposes, but although
969 the given file was scanned by exinext itself; it wasn't being passed on
970 when Exim was called.
971
19b9dc85
PH
972PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
973 an end-of-file indication when reading a command response.
974
309bd837
PH
975PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
976 compiled. In many other places in Exim, IPv6 addresses are always
977 recognized, so I have changed this. It also means that IPv4 domain
978 literals of the form [IPV4:n.n.n.n] are now always recognized.
979
59e82a2a
PH
980PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
981 used if the router is not running as root, for example, when verifying at
982 ACL time, or when using -bh. The debugging output from this situation was
983 non-existent - all you got was a failure to exec. I have made two
984 changes:
985
986 (a) Failures to set uid/gid, the current directory, or a process leader
987 in a subprocess such as that created by queryprogram now generate
988 suitable debugging ouput when -d is set.
989
990 (b) The queryprogram router detects when it is not running as root,
991 outputs suitable debugging information if -d is set, and then runs
992 the subprocess without attempting to change uid/gid.
993
9edc04ce
PH
994PH/15 Minor change to Makefile for building test_host (undocumented testing
995 feature).
996
1349e1e5
PH
997PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
998 additional section of a DNS packet that returns MX or SRV records.
999 Instead, it always explicitly searches for A/AAAA records. This avoids
1000 major problems that occur when a DNS server includes only records of one
1001 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1002 fixed another bug: if SRV records were looked up and the corresponding
1003 address records were *not* found in the additional section, the port
1004 values from the SRV records were lost.
1005
ea49d0e1
PH
1006PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1007 using the correct key (the original address) when searching the retry
1008 rules in order to find which one to use for generating the retry hint.
1009
064a94c9
PH
1010PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1011 adding the default one. Similarly, if it contains a Reply-To: header, the
1012 errors_reply_to option, if set, is not used.
1013
727071f8
PH
1014PH/19 When calculating a retry time, Exim used to measure the "time since
1015 failure" by looking at the "first failed" field in the retry record. Now
1016 it does not use this if it is later than than the arrival time of the
1017 message. Instead it uses the arrival time. This makes for better
1018 behaviour in cases where some deliveries succeed, thus re-setting the
1019 "first failed" field. An example is a quota failure for a huge message
1020 when small messages continue to be delivered. Without this change, the
1021 "time since failure" will always be short, possible causing more frequent
1022 delivery attempts for the huge message than are intended.
dd16e114 1023 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1024
f78eb7c6
PH
1025PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1026 $1, $2, $3) because the numerical variables can be reset during some
1027 expansion items (e.g. "match"), thereby losing the authentication data.
1028
21c28500
PH
1029PH/21 Make -bV show the size of off_t variables so that the test suite can
1030 decide whether to run tests for quotas > 2G.
1031
1032PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1033 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1034 filecount value is greater than 2G or if a quota value is greater than 2G
1035 on a system where the size of off_t is not greater than 4, a panic error
1036 is given.
1037
1688f43b
PH
1038PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1039 never match. The debug and -bh output now contains an explicit error
1040 message indicating a malformed IPv4 address or mask.
1041
1042PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1043 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1044 PH/23 above applies.
1045
9675b384
PH
1046PH/25 Do not write to syslog when running in the test harness. The only
1047 occasion when this arises is a failure to open the main or panic logs
1048 (for which there is an explicit test).
1049
6a3f1455
PH
1050PH/26 Added the /no_tell option to "control=freeze".
1051
dac79d3e
PH
1052PH/27 If a host name lookup failed very early in a connection, for example, if
1053 the IP address matched host_lookup and the reverse lookup yielded a name
1054 that did not have a forward lookup, an error message of the form "no IP
1055 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1056 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1057
5977a0b3
PH
1058PH/28 An enabling patch from MH: add new function child_open_exim2() which
1059 allows the sender and the authenticated sender to be set when
1060 submitting a message from within Exim. Since child_open_exim() is
1061 documented for local_scan(), the new function should be too.
1062
c91535f3
PH
1063PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1064 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1065 results in an empty string is now treated as unset.
1066
0d46a8c8
PH
1067PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1068
278c6e6c
PH
1069PH/31 Added sender_verify_fail logging option.
1070
2cbb4081
PH
1071PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1072 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1073 tidied the source and removed it altogether.
1074
3eef829e
PH
1075PH/33 When a queue run was abandoned because the load average was too high, a
1076 log line was always written; now it is written only if the queue_run log
1077 selector is set. In addition, the log line for abandonment now contains
1078 information about the queue run such as the pid. This is always present
1079 in "start" and "stop" lines but was omitted from the "abandon" line.
1080
1ab95fa6
PH
1081PH/34 Omit spaces between a header name and the colon in the error message that
1082 is given when verify = headers_syntax fails (if there are lots of them,
1083 the message gets confusing).
1084
230205fc
PH
1085PH/35 Change the default for dns_check_names_pattern to allow slashes within
1086 names, as there are now some PTR records that contain slashes. This check
1087 is only to protect against broken name servers that fall over on strange
1088 characters, so the fact that it applies to all lookups doesn't matter.
1089
75e0e026
PH
1090PH/36 Now that the new test suite is complete, we can remove some of the
1091 special code in Exim that was needed for the old test suite. For example,
1092 sorting DNS records because real resolvers return them in an arbitrary
1093 order. The new test suite's fake resolver always returns records in the
1094 same order.
1095
1096PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1097 bounces) except when queue_only is set, to avoid logging races between
1098 the different processes.
1099
145396a6
PH
1100PH/38 Panic-die if .include specifies a non-absolute path.
1101
3cd34f13
PH
1102PH/39 A tweak to the "H" retry rule from its user.
1103
11121d3d
JJ
1104JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1105 a label. They prevented compilation on older perls.
1106
1107JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1108 a warning to be raised on newish perls.
1109
1110JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1111 on queue. Changes to match documented behaviour of showing count of
1112 messages matching specified criteria.
1113
8def5aaf
PH
1114PH/40 Changed the default ident timeout from 30s to 5s.
1115
929ba01c
PH
1116PH/41 Added support for the use of login_cap features, on those BSD systems
1117 that have them, for controlling the resources used by pipe deliveries.
1118
2632889e
PH
1119PH/42 The content-scanning code uses fopen() to create files in which to put
1120 message data. Previously it was not paying any attention to the mode of
1121 the files. Exim runs with umask(0) because the rest of the code creates
1122 files with open(), and sets the required mode explicitly. Thus, these
1123 files were ending up world-writeable. This was not a big issue, because,
1124 being within the spool directory, they were not world-accessible. I have
1125 created a function called modefopen, which takes an additional mode
1126 argument. It sets umask(777), creates the file, chmods it to the required
1127 mode, then resets the umask. All the relevant calls to fopen() in the
1128 content scanning code have been changed to use this function.
1129
944a9c55
PH
1130PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1131 to 24 hours. This avoids potential overflow problems when processing G
1132 and H retry rules. I suspect nobody ever tinkers with this value.
1133
4a23603b
PH
1134PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1135
4730f942
PH
1136PH/45 When the plaintext authenticator is running as a client, the server's
1137 challenges are checked to ensure they are valid base64 strings. By
1138 default, the authentication attempt is cancelled if an invalid string is
1139 received. Setting client_ignore_invalid_base64 true ignores these errors.
1140 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1141 they are received. Thus, the responses can be made to depend on the
1142 challenges. If an invalid string is ignored, an empty string is placed in
1143 the variable.
1144
30dba1e6
PH
1145PH/46 Messages that are created by the autoreply transport now contains a
1146 References: header, in accordance with RFCs 2822 and 3834.
1147
382afc6b
PH
1148PH/47 Added authenticated_sender_force to the smtp transport.
1149
a86229cf
PH
1150PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1151
50c99ba6
PH
1152PH/49 Installed latest patch from the Sieve maintainer.
1153
d35e429d
PH
1154PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1155 was also set, the appendfile transport was unnecessarily scanning a
1156 directory of message files (e.g. for maildir delivery) to find the count
1157 of files (along with the size), even though it did not need this
1158 information. It now does the scan only if it needs to find either the
1159 size of the count of files.
1160
f90d018c
PH
1161PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1162
75def545
PH
1163PH/52 Two bugs concerned with error handling when the smtp transport is
1164 used in LMTP mode:
1165
1166 (i) Exim was not creating retry information for temporary errors given
1167 for individual recipients after the DATA command when the smtp transport
1168 was used in LMTP mode. This meant that they could be retried too
1169 frequently, and not timed out correctly.
1170
1171 (ii) Exim was setting the flag that allows error details to be returned
1172 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1173 recipients that were returned after the DATA command.
1174
1175PH/53 This is related to PH/52, but is more general: for any failing address,
1176 when detailed error information was permitted to be returned to the
1177 sender, but the error was temporary, then after the final timeout, only
1178 "retry timeout exceeded" was returned. Now it returns the full error as
1179 well as "retry timeout exceeded".
1180
c46782ef
PH
1181PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1182 do this, and (what is worse) MTAs that accept it.
1183
71fafd95
PH
1184PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1185 will now be deprecated.
1186
2c5db4fd
PH
1187PH/56 New os.c-cygwin from the Cygwin maintainer.
1188
9cf6b11a
JJ
1189JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1190 formats (previously only available in exim formats via -bpr, -bpru,
1191 and -bpra. Now also available in native and exiqgrep formats)
1192
1193JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1194 with very large, slow to parse queues
1195
1196JJ/08 exipick: added ! as generic prefix to negate any criteria format
1197
1198JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1199
898d150f
PH
1200PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1201 responses to authentication challenges, though it was showing the
1202 challenges; (ii) I've removed the CR characters from the debug output for
1203 SMTP output lines.
1204
46218253
PH
1205PH/58 Allow for the insertion of a newline as well as a space when a string
1206 is turned into more than one encoded-word during RFC 2047 encoding. The
1207 Sieve code now uses this.
1208
e97957bc
PH
1209PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1210 data_4xx, lost_connection, tls_required.
1211
81e509d7
PH
1212PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1213 message was being sent as an SMTP response.
1214
3d240ff7
PH
1215PH/61 Add -l and -k options to exicyclog.
1216
b37c4101
PH
1217PH/62 When verifying, if an address was redirected to one new address, so that
1218 verification continued, and the new address failed or deferred after
1219 having set something in $address_data, the value of $address_data was not
1220 passed back to the ACL. This was different to the case when no
1221 redirection occurred. The value is now passed back in both cases.
1222
79378e0f
PH
1223PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1224 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1225 use login_cap.h, so on its own it isn't the distinguishing feature. The
1226 new name refers directly to the setclassresources() function.
1227
e49c7bb4
PH
1228PH/65 Added configuration files for NetBSD3.
1229
d114ec46
PH
1230PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1231
f3d7df6c
PH
1232PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1233 is preferred over IPv4.
1234
715ab376
PH
1235PH/68 The bounce_return_message and bounce_return_body options were not being
1236 honoured for bounces generated during the reception of non-SMTP messages.
1237 In particular, this applied to messages rejected by the ACL. This bug has
1238 been fixed. However, if bounce_return_message is true and bounce_return_
1239 body is false, the headers that are returned for a non-SMTP message
1240 include only those that have been read before the error was detected.
1241 (In the case of an ACL rejection, they have all been read.)
1242
6b31b150
PH
1243PH/69 The HTML version of the specification is now built in a directory called
1244 spec_html instead of spec.html, because the latter looks like a path with
1245 a MIME-type, and this confuses some software.
1246
1247PH/70 Catch two compiler warnings in sieve.c.
1248
d515a917
PH
1249PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1250 function verify_get_ident() calls ip_connect() to connect a socket, but
1251 if the "connect()" function timed out, ip_connect() used to close the
1252 socket. However, verify_get_ident() also closes the socket later, and in
1253 between Exim writes to the log, which may get opened at this point. When
1254 the socket was closed in ip_connect(), the log could get the same file
1255 descriptor number as the socket. This naturally causes chaos. The fix is
1256 not to close the socket in ip_connect(); the socket should be closed by
1257 the function that creates it. There was only one place in the code where
1258 this was missing, in the iplookup router, which I don't think anybody now
1259 uses, but I've fixed it anyway.
1260
9b8fadde
PH
1261PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1262 well as to direct DNS lookups. Otherwise the handling of names in host
1263 lists is inconsistent and therefore confusing.
1264
214e2000 1265
5de37277
PH
1266Exim version 4.60
1267-----------------
1268
cc38ddbf
PH
1269PH/01 Two changes to the default runtime configuration:
1270
1271 (1) Move the checks for relay_from_hosts and authenticated clients from
1272 after to before the (commented out) DNS black list checks.
1273
1274 (2) Add control=submission to the relay_from_hosts and authenticated
1275 clients checks, on the grounds that messages accepted by these
1276 statements are most likely to be submissions.
5de37277 1277
72fdd6ae
PH
1278PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1279
1280 (1) Generate an error if the third argument for the ${prvs expansion is
1281 not a single digit.
1282
1283 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1284 string.
1285
1286 (3) Reset the variables that are obtained from the first argument of
1287 ${prvscheck and used in the second argument before leaving the code,
1288 because their memory is reclaimed, so using them afterwards may do
1289 silly things.
1290
1291 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1292 one (it's much easier than Tom thought :-).
1293
1294 (5) Because of (4), we can now allow for the use of $prvscheck_result
1295 inside the third argument.
cb9328de 1296
cb741023
PH
1297PH/03 For some reason, the default setting of PATH when running a command from
1298 a pipe transport was just "/usr/bin". I have changed it to
1299 "/bin:/usr/bin".
1300
f174f16e
PH
1301PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1302 anything to be listed in the output from -bV.
b2f5a032 1303
c25242d7
PH
1304PH/05 When a filter generated an autoreply, the entire To: header line was
1305 quoted in the delivery log line, like this:
1306
1307 => >A.N.Other <ano@some.domain> <original@ddress> ...
1308
1309 This has been changed so that it extracts the operative address. There
1310 may be more than one such address. If so, they are comma-separated, like
1311 this:
1312
1313 => >ano@some.domain,ona@other.domain <original@ddress> ...
1314
82c19f95
PH
1315PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1316 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1317 not being looked up in the rDNS to get a host name, Exim was showing the
1318 IP address twice in Received: lines, even though the IP addresses were
1319 identical. For example:
1320
1321 Received: from [1.2.3.4] (helo=[1.2.3.4])
1322
1323 However, if the real host name was known, it was omitting the HELO data
1324 if it matched the actual IP address. This has been tidied up so that it
1325 doesn't show the same IP address twice.
1326
d7ffbc12
PH
1327PH/07 When both +timestamp and +memory debugging was on, the value given by
1328 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1329 called by the debug printing, thereby overwriting the timestamp buffer.
1330 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1331
9f526266
PH
1332PH/08 When the original message was included in an autoreply transport, it
1333 always said "this is a copy of the message, including all the headers",
1334 even if body_only or headers_only was set. It now gives an appropriate
1335 message.
1336
87fcc8b9
PH
1337PH/09 Applied a patch from the Sieve maintainer which:
1338
1339 o fixes some comments
1340 o adds the (disabled) notify extension core
1341 o adds some debug output for the result of if/elsif tests
1342 o points to the current vacation draft in the documentation
1343 and documents the missing references header update
1344
1345 and most important:
1346
1347 o fixes a bug in processing the envelope test (when testing
1348 multiple envelope elements, the last element determinted the
1349 result)
1350
456682f5
PH
1351PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1352 Electronic Mail") by including:
1353
1354 Auto-submitted: auto-generated
1355
1356 in the messages that it generates (bounce messages and others, such as
1357 warnings). In the case of bounce messages for non-SMTP mesages, there was
1358 also a typo: it was using "Auto_submitted" (underscore instead of
1359 hyphen). Since every message generated by Exim is necessarily in response
1360 to another message, thes have all been changed to:
1361
1362 Auto-Submitted: auto-replied
1363
1364 in accordance with these statements in the RFC:
1365
1366 The auto-replied keyword:
1367
1368 - SHOULD be used on messages sent in direct response to another
1369 message by an automatic process,
1370
1371 - MUST NOT be used on manually-generated messages,
1372
1373 - MAY be used on Delivery Status Notifications (DSNs) and Message
1374 Disposition Notifications (MDNs),
1375
1376 - MUST NOT be used on messages generated by automatic or periodic
1377 processes, except for messages which are automatic responses to
1378 other messages.
1379
3e46c1aa
PH
1380PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1381 to the default Received: header definition.
456682f5 1382
49826d12
PH
1383PH/12 Added log selector acl_warn_skipped (default on).
1384
eba0c039
PH
1385PH/13 After a successful wildlsearch lookup, discard the values of numeric
1386 variables because (a) they are in the wrong storage pool and (b) even if
1387 they were copied, it wouldn't work properly because of the caching.
1388
a0d6ba8a
PH
1389PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1390 checking when decoding. Apparently there are clients that generate
1391 overlong encoded strings. Why am I not surprised?
1392
f0917727
PH
1393PH/15 If the first argument of "${if match_address" was not empty, but did not
1394 contain an "@" character, Exim crashed. Now it writes a panic log message
1395 and treats the condition as false.
1396
096fee00
PH
1397PH/16 In autoreply, treat an empty string for "once" the same as unset.
1398
024bd3c2
PH
1399PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1400 extension "envelope-auth". The code is finished and in agreement with
1401 other implementations, but there is no documentation so far and in fact,
1402 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1403 not changing the active code.
1404
1405 Print executed "if" and "elsif" statements when debugging is used. This
1406 helps a great deal to understand what a filter does.
1407
1408 Document more things not specified clearly in RFC3028. I had all this
1409 sorted out, when out of a sudden new issues came to my mind. Oops."
1410
df199fec
PH
1411PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1412 (Bugzilla #53).
1413
d27f1df3
PH
1414PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1415 canonical form (as documented). However, after a host name lookup from
1416 the IP address, check_host() was doing a simple string comparison with
1417 addresses acquired from the DNS when checking that the found name did
1418 have the original IP as one of its addresses. Since any found IPv6
1419 addresses are likely to be in abbreviated form, the comparison could
1420 fail. Luckily, there already exists a function for doing the comparison
1421 by converting both addresses to binary, so now that is used instead of
1422 the text comparison.
1423
96776534
PH
1424PH/20 There was another similar case to PH/19, when a complete host name was
1425 given in a host list; looking up its IP address could give an abbreviated
1426 form, whereas the current host's name might or might not be abbreviated.
1427 The same fix has been applied.
1428
5de37277 1429
9a799bc0
PH
1430Exim version 4.54
1431-----------------
1432
1433PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1434 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1435 It now does.
1436
99a4b039
PH
1437PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1438 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1439
1440PH/03 Typo: missing ".o" in src/pcre/Makefile.
1441
4b233853
PH
1442PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1443 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1444 Also, for "Auto-Submitted", treat anything other than "no" as
1445 non-personal, in accordance with RFC 3834. (Previously it treated
1446 anything starting "auto-" as non-personal.)
1447
8857ccfd
PH
1448TF/01 The control=submission/name=... option had a problem with syntax
1449 errors if the name included a slash character. The /name= option
1450 now slurps the rest of the string, so it can include any characters
1451 but it must come last in the list of options (after /sender_retain
1452 or /domain=).
1453
433a2980
PH
1454PH/05 Some modifications to the interface to the fake nameserver for the new
1455 testing suite.
1456
3e46c1aa 1457
9a799bc0 1458
e3a311ba
TK
1459Exim version 4.53
1460-----------------
1461
1462TK/01 Added the "success_on_redirect" address verification option. See
1463 NewStuff for rationale and an example.
1464
13b685f9
PH
1465PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1466
395ff96d
PH
1467PH/02 Patch to exigrep to allow it to work on syslog lines.
1468
5b68f6e4
PH
1469PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1470 fread() to skip over the body file's header line, because in Cygwin the
1471 header line is locked and is inaccessible.
1472
1ab52c69
PH
1473PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1474 co-exist for some time) to make it clear that it is the Exim ID that is
1475 referenced, not the Message-ID: header line.
1476
b07e6aa3
PH
1477PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1478 string_format() function, because snprintf() does not exist on all
1479 operating systems.
1480
254e032f
PH
1481PH/06 The use of forbid_filter_existstest now also locks out the use of the
1482 ${stat: expansion item.
1483
3af76a81
PH
1484PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1485 protocol synchronization error", to keep the pedants happy.
1486
2548ba04
PH
1487PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1488 well as for IRIX systems, when gcc is being used. See the host.c source
1489 file for comments.
1490
b6c6011d
PH
1491PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1492
cf39cf57
PH
1493PH/10 Named domain lists were not working if used in a queue_smtp_domains
1494 setting.
1495
f1513293
PH
1496PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1497 transport and to the smtp transport in LMTP mode.
1498
727549a4
PH
1499TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1500
af46795e
PH
1501PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1502 run a filter in a subprocess. This could lead to confusion in subsequent
1503 lookups in the parent process. There should also be a search_tidyup() at
1504 the end of the subprocess.
1505
d7b47fd0
PH
1506PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1507 only if the host matched helo_try_verify_hosts, which caused the
1508 verification to occur when the EHLO/HELO command was issued. The ACL just
1509 tested the remembered result. Now, if a previous verification attempt has
1510 not happened, "verify = helo" does it there and then.
1511
ee744174
JJ
1512JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1513
b582ab87
PH
1514TK/03 Fix log output including CR from clamd.
1515
41a13e0a
PH
1516PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1517 exist provoked a memory error which could cause a segfault.
1518
f625cc5a
PH
1519PH/15 Installed PCRE 6.2
1520
1521PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1522
21f7af35
PH
1523PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1524 of the problem. Specifically, suggested +O2 rather than +O1 for the
1525 HP-UX compiler.
1526
31480e42
PH
1527PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1528
2d280592
PH
1529PH/20 If a delivery was routed to a non-standard port by means of an SRV
1530 record, the port was not correctly logged when the outgoing_port log
1531 selector was set (it logged the transort's default port).
1532
7cd1141b
PH
1533PH/21 Added support for host-specific ports to manualroute, queryprogram,
1534 fallback_hosts, and "hosts" in the smtp transport.
1535
1536PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1537 host errors such as "Connection refused".
1538
750af86e
PH
1539PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1540 authentication with radiusclient 0.4.9:
1541
1542 - Error returned from rc_read_config was caught wrongly
1543 - Username/password not passed on to radius server due to wrong length.
1544
1545 The presumption is that some radiusclient API changes for 4.51/PH/17
1546 were not taken care of correctly. The code is still untested by me (my
1547 Linux distribution still has 0.3.2 of radiusclient), but it was
1548 contributed by a Radius user.
1549
1550PH/24 When doing a callout, the value of $domain wasn't set correctly when
1551 expanding the "port" option of the smtp transport.
1552
4304270b
TK
1553TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1554 while reading a MIME header. Thanks to Tom Hughes for a patch.
1555
750af86e
PH
1556PH/24 Include config.h inside local_scan.h so that configuration settings are
1557 available.
1558
64ffc24f
PH
1559PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1560 that in an ACL for RCPT (for example), you can examine exactly what was
1561 received.
1562
5dd9625b
PH
1563PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1564 commands, but it was not correctly comparing the address with the actual
1565 client host address. Thus, it would show the EHLO address in Received:
1566 header lines when this was not necessary.
1567
5591031b
PH
1568PH/27 Added the % operator to ${eval:}.
1569
ba18e66a
PH
1570PH/28 Exim tries to create and chdir to its spool directory when it starts;
1571 it should be ignoring failures (because with -C, for example, it has lost
1572 privilege). It wasn't ignoring creation failures other than "already
1573 exists".
1574
9cec981f
PH
1575PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1576 -bV or -d is used.
1577
aa2b5c79
PH
1578PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1579 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1580 too many continuations, the temporary file was not being removed, and the
1581 return code was incorrect.
aa2b5c79 1582
48a53b7f
PH
1583PH/31 Missing "BOOL" in function definition in filtertest.c.
1584
1c59d63b
PH
1585PH/32 Applied Sieve patches from the maintainer.
1586
671012da
TK
1587TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1588
1509d3a8
PH
1589PH/33 Added "verify = not_blind".
1590
1591PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1592 Local/Makefile (with some defaults set). These are used in built scripts
1593 such as exicyclog, but they have never been used in the exim_install
1594 script (though there are many overriding facilities there). I have
1595 arranged that the exim_install script now takes note of these two
1596 settings.
1597
1598PH/35 Installed configuration files for Dragonfly.
1599
2fe1a124
PH
1600PH/36 When a locally submitted message by a trusted user did not contain a
1601 From: header, and the sender address was obtained from -f or from an SMTP
1602 MAIL command, and the trusted user did not use -F to supply a sender
1603 name, $originator_name was incorrectly used when constructing a From:
1604 header. Furthermore, $originator_name was used for submission mode
1605 messages from external hosts without From: headers in a similar way,
1606 which is clearly wrong.
1607
8800895a
PH
1608PH/37 Added control=suppress_local_fixups.
1609
ccfdb010
PH
1610PH/38 When log_selector = +received_sender was set, and the addition of the
1611 sender made the log line's construction buffer exactly full, or one byte
1612 less than full, an overflow happened when the terminating "\n" was
1613 subsequently added.
1614
1130bfb0
PH
1615PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1616 when the result of a list match is failure because a DNS lookup failed.
1617
ebcb507f
PH
1618PH/40 RM_COMMAND is now used in the building process.
1619
c35e155c
PH
1620PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1621 the "build-* directories that it finds.
1622
95d1f782
PH
1623PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1624 address in a domain literal was a prefix of an interface address.
1625
fd6de02e
PH
1626PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1627 when verifying a sender address, unless rewrite_headers is false.
1628
58de37c5
PH
1629PH/44 Wrote a long comment about why errors_to addresses are verified as
1630 recipients, not senders.
1631
261cf466
TF
1632TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1633 the ratelimit ACL was added.
1634
3ee512ff
PH
1635PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1636
e08c430f
PH
1637PH/46 Added extra information about PostgreSQL errors to the error string.
1638
bef5a11f
PH
1639PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1640 avoiding the need to install special zones in a real server. This is
1641 backwards compatible; if it can't find the fake resolver, it drops back.
1642 Thus, both old and new test suites can be run.
1643
7546de58
TF
1644TF/02 Added util/ratelimit.pl
1645
e5d5a95f
TF
1646TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1647 clock is set back in time.
1648
2e88a017
TF
1649TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1650 Candler <B.Candler@pobox.com>.
1651
a5f65aa4
TF
1652TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1653 OK for addresses that are the result of redirections.
1654
e7726cbf
PH
1655PH/48 A number of further additions for the benefit of the new test suite,
1656 including a fake gethostbyname() that interfaces to the fake DNS resolver
1657 (see PH/47 above).
1658
a7fdad5b
TF
1659TF/06 The fix for widen_domains has also been applied to qualify_single and
1660 search_parents which are the other dnslookup options that can cause
1661 header rewrites.
1662
6af56900
PH
1663PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1664 type ("H").
1665
0925ede6
PH
1666PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1667
66afa403
TF
1668TF/07 Exim produced the error message "an SRV record indicated no SMTP
1669 service" if it encountered an MX record with an empty target hostname.
1670 The message is now "an MX or SRV record indicated no SMTP service".
1671
0154e85a
TF
1672TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1673 if the DNS of the sending site is misconfigured. This is quite a
1674 common situation. This change restores the behaviour of treating a
1675 helo verification defer as a failure.
1676
16f12c76
PH
1677PH/51 If self=fail was set on a router, the bounce message did not include the
1678 actual error message.
1679
bbe902f0 1680
e5a9dba6
PH
1681Exim version 4.52
1682-----------------
1683
1684TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1685
22c3b60b
PH
1686PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1687 command itself ended in error, the underlying message about the transport
1688 filter timeout was being overwritten with the pipe command error. Now the
1689 underlying error message should be appended to the second error message.
1690
06a9b4b5
PH
1691TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1692
c1ac6996
PH
1693PH/02 Reduce the amount of output that "make" produces by default. Full output
1694 can still be requested.
1695
9c7a242c
PH
1696PH/03 The warning log line about a condition test deferring for a "warn" verb
1697 was being output only once per connection, rather than after each
1698 occurrence (because it was using the same function as for successful
1699 "warn" verbs). This seems wrong, so I have changed it.
1700
87ba3f5f
PH
1701TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1702 it should not have, which might have caused a crash in the right
1703 circumstances, but probably never did.
1704
1705PH/04 Installed a modified version of Tony Finch's patch to make submission
1706 mode fix the return path as well as the Sender: header line, and to
1707 add a /name= option so that you can make the user's friendly name appear
1708 in the header line.
1709
29aba418
TF
1710TF/03 Added the control = fakedefer ACL modifier.
1711
fe0dab11
TF
1712TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1713 Mark Lowes for thorough testing.
870f6ba8 1714
11d337a4
TK
1715TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1716
1717TK/03 Merged latest SRS patch from Miles Wilton.
1718
415c8f3b
PH
1719PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1720 with the definition in sysexits.h (which is #included earlier).
1721 Fortunately, Exim does not actually use EX_OK. The code used to try to
1722 preserve the sysexits.h value, by assumimg that macro definitions were
1723 scanned for macro replacements. I have been disabused of this notion,
1724 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1725
958541e9
PH
1726PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1727 in the smtp transport. When a block could not be written in a single
1728 write() function, the timeout was being re-applied to each part-write.
1729 This seems wrong - if the receiver was accepting one byte at a time it
1730 would take for ever. The timeout is now adjusted when this happens. It
1731 doesn't have to be particularly precise.
1732
c206415f
TK
1733TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1734 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1735
2a4be8f9
PH
1736PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1737 without a domain if the check to <postmaster@domain> fails.
1738
1cba11c5
SC
1739SC/01 Eximstats: added -xls and the ability to specify output files
1740 (patch written by Frank Heydlauf).
1741
1742SC/02 Eximstats: use FileHandles for outputing results.
1743
1744SC/03 Eximstats: allow any combination of xls, txt, and html output.
1745
1746SC/04 Eximstats: fixed display of large numbers with -nvr option
1747
1748SC/05 Eximstats: fixed merging of reports with empty tables.
1749
1750SC/06 Eximstats: added the -include_original_destination flag
1751
1752SC/07 Eximstats: removed tabs and trailing whitespace.
1753
1005d00e
TK
1754TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1755
1756TK/06 MBOX spool code: Add real "From " MBOX separator line
1757 so the .eml file is really in mbox format (even though
1758 most programs do not really care). Patch from Alex Miller.
1759
1760TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1761 The latter is generated from $received_to and is only set if the
1762 message has one envelope recipient. SA can use these headers,
1763 obviously out-of-the-box. Patch from Alex Miller.
1764
9b4768fa
PH
1765PH/08 The ${def test on a variable was returning false if the variable's
1766 value was "0", contrary to what the specification has always said!
1767 The result should be true unless the variable is empty.
1768
1769PH/09 The syntax error of a character other than { following "${if
1770 def:variable_name" (after optional whitespace) was not being diagnosed.
1771 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1772 accidental colon was present, for example, could give incorrect results.
1773
0d7eb84a
PH
1774PH/10 Tidied the code in a number of places where the st_size field of a stat()
1775 result is used (not including appendfile, where other changes are about
1776 to be made).
1777
1778PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1779 This involved changing a lot of size variables from int to off_t. It
1780 should work with maildirs and everything.
1781
40727bee
TK
1782TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1783 spamd dying while we are connected to it.
1784
554d2369
TF
1785TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1786 <jgh@wizmail.org>
1787
1f922db1
PH
1788PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1789 function for BDB 4.3.
1790
ef213c3b
PH
1791PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1792
8ac170f3
PH
1793PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1794 the sources for PCRE have been re-arranged and more files are now
1795 involved.
1796
b1c749bb
PH
1797PH/15 The code I had for printing potentially long long variables in PH/11
1798 above was not the best (it lost precision). The length of off_t variables
1799 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1800 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1801 to be "long long int" or "long int". This is needed for the internal
1802 formatting function string_vformat().
b1c749bb 1803
4aac9b49
PH
1804PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1805 the configuration file to be ":syslog", then the script "guesses" where
1806 the logs files are, rather than using the compiled in default. In our
1807 case the guess is not the same as the compiled default, so the script
1808 suddenly stopped working when I started to use syslog. The patch checks
1809 to see if log_file_path is "". If so, it attempts to read it from exim
1810 with no configuration file to get the compiled in version, before it
1811 falls back to the previous guessing code."
1812
294520c8
TK
1813TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1814 implementing BATV in an Exim configuration. See NewStuff for the gory
1815 details.
1816
5bd022fe
PH
1817PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1818 Makefile that are specific to HP-UX.
1819
90e9ce59
PH
1820PH/18 If the "use_postmaster" option was set for a recipient callout together
1821 with the "random" option, the postmaster address was used as the MAIL
1822 FROM address for the random test, but not for the subsequent recipient
1823 test. It is now used for both.
1824
5ea81592
PH
1825PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1826 patch removes a few documentation additions to RFC 3028, because the
1827 latest draft now contains them. It adds the new en;ascii-case comparator
1828 and a new error check for 8bit text in MIME parts. Comparator and
1829 require names are now matched exactly. I enabled the subaddress
1830 extension, but it is not well tested yet (read: it works for me)."
1831
c6c2dc1d
PH
1832PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1833 rework some of the code of TK/09 above to avoid the hardwired use of
1834 "%lld" and "long long". Replaced the call to snprintf() with a call to
1835 string_vformat().
1836
fffffe4c
PH
1837PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1838 records point to non-existent hosts", "retry timeout exceeded", and
1839 "retry time not reached for any host after a long failure period".
ca02eafb 1840
9a26b6b2
PH
1841PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1842 experimental DomainKeys support:
1843
1844 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1845 (2) On an error such as an illegally used "control", the wrong name for
1846 the control was given.
1847
1848 These problems did NOT occur unless DomainKeys support was compiled.
1849
4aee0225
PH
1850PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1851
32d668a5
PH
1852PH/24 Added ${if match_ip condition.
1853
8187c3f3
PH
1854PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1855 databases so that it will be absolutely obvious if a crash occurs in the
1856 DB library. This is a regular occurrence (often caused by mis-matched
1857 db.h files).
1858
ff790e47 1859PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1860 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1861 picked up on a user's system that detects such things. There doesn't seem
1862 to be a gcc warning option for this - only an attribute that has to be
1863 put on the function's prototype. It seems that in Fedora Core 4 they have
1864 set this on a number of new functions. No doubt there will be more in due
1865 course.
ff790e47 1866
5417f6d1
PH
1867PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1868 specify a transport. However, if an address that was verified by such a
1869 router was the subject of a callout, Exim crashed because it tried to
1870 read the rcpt_include_affixes from the non-existent transport. Now it
1871 just assumes that the setting of that option is false. This bug was
1872 introduced by 4.51/PH/31.
1873
59cf8544
PH
1874PH/28 Changed -d+all to exclude +memory, because that information is very
1875 rarely of interest, but it makes the output a lot bigger. People tend to
1876 do -d+all out of habit.
1877
e7ad8a65
PH
1878PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1879 code in os-type was giving problems when libc.so lives in lib64, like on
1880 x86_64 Fedora Core.
1881
ade42478
PH
1882PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1883 aren't the modern standard, and it seems that some systems' include files
1884 don't always have them. Exim was already checking for some of the newer
1885 ones like T_AAAA, and defining it itself. I've added checks for all the
1886 record types that Exim uses.
1887
182ad5cf
PH
1888PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1889 not automatically generating a new one, as it is supposed to. This
1890 prevented TLS from working. If the file did exist, but contained invalid
1891 data, a new version was generated, as expected. It was only the case of a
1892 non-existent file that was broken.
1893
b0d9fc80
TK
1894TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1895 with a change in libdomainkeys > 0.64.
1896
1897TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1898 from DNS. If the selector record carries the flag, it now has
1899 precedence over the domain-wide flag.
1900
1901TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1902
47c7a64a
PH
1903PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1904 the use of a port name that isn't defined in /etc/services) occurred, the
1905 message was deferred as in a normal delivery, and thus remained on the
1906 spool, instead of being failed because of the mua_wrapper setting. This
1907 is now fixed, and I tidied up some of the mua_wrapper messages at the
1908 same time.
1909
a388bce4
SC
1910SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1911 the messages in a hash of arrays rather than using individual hashes.
1912 This is a bit cleaner and results in dramatic memory savings, albeit
1913 at a slight CPU cost.
1914
1915SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1916 as requested by Marc Sherman.
1917
1918SC/10 Eximstats: added histograms for user specified patterns as requested
1919 by Marc Sherman.
1920
0793e4ed
SC
1921SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1922
c58b88df
PH
1923PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1924 fopen() in the content-scanning modules that did not already have it.
1925
e7ad8a65 1926
7982096b
PH
1927Exim version 4.51
1928-----------------
1929
1a46a8c5
PH
1930TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1931 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1932
2f079f46 1933TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1934
1935TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1936
1937PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1938 to test Sieve filters that use "vacation".
1939
1940PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1941 that changes the way the GnuTLS parameters are stored in the cache file.
1942 The new format can be generated externally. For backward compatibility,
1943 if the data in the cache doesn't make sense, Exim assumes it has read an
1944 old-format file, and it generates new data and writes a new file. This
1945 means that you can't go back to an older release without removing the
1946 file.
1947
1948PH/03 A redirect router that has both "unseen" and "one_time" set does not
1949 work if there are any delivery delays because "one_time" forces the
1950 parent to be marked "delivered", so its unseen clone is never tried
1951 again. For this reason, Exim now forbids the simultaneous setting of
1952 these two options.
1953
1954PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1955 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1956 entry if you want to know the details. The fix, however, neglected to
1957 consider the case when local delivery batching is involved. The test for
1958 "previously delivered" was not happening when checking to see if an
1959 address could be batched with a previous (undelivered) one; under
1960 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1961 address.
1a46a8c5
PH
1962
1963PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1964 in its include files, and this causes problems building Exim.
1965
1966PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1967 header_syntax) but Exim was just ignoring anything given after a slash.
1968 In particular, this caused confusion with an attempt to use "verify =
1969 reverse_host_lookup/defer_ok". An error is now given when options are
1970 supplied for verify items that do not have them. (Maybe reverse_host_
1971 lookup should have a defer_ok option, but that's a different point.)
1972
1973PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1974 defined by RFC 821) to 2048, because there were problems with some AUTH
1975 commands, and RFC 1869 says the size should be increased for extended
1976 SMTP commands that take arguments.
1977
1978PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1979 Finch).
1980
1981PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1982 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1983
49c2d5ea
PH
1984PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1985 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1986 whatever). Otherwise the password may appear in the log. Following change
1987 PH/42 below, there is no longer a chance of it appearing in a bounce
1988 message.
49c2d5ea 1989
bf759a8b
PH
1990PH/11 Installed exipick version 20050225.0 from John Jetmore.
1991
83364d30
PH
1992PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1993 of its addresses was ever tried. (Bugzilla bug #2.)
1994
7999bbd7
PH
1995PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1996 the result incorrectly in the debug output. (It correctly added a newline
1997 to what was transported.)
1998
7dbf77c9
PH
1999TF/01 Added $received_time.
2000
74e0617f
PH
2001PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2002 commented out examples of how to interface to a virus scanner and to
2003 SpamAssassin. Also added commented examples of av_scanner and
2004 spamd_address settings.
2005
2f079f46
PH
2006PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2007 and controls are allowed in which ACLs. There were a couple of minor
2008 errors. Some of the entries in the conditions table (which is a table of
2009 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2010 negation of where the condition IS allowed.
2011
8c841523
PH
2012PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2013
7766a4f0
PH
2014PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2015 header file does not have a version number, so I've had to invent a new
2016 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2017 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2018 radiusclient), but it was contributed by a Radius user.
2019
8b417f2c
PH
2020PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2021 files or directories, for OpenSSL.
2022
901f42cb
PH
2023PH/19 When an Exim process that is running as root has to create an Exim log
2024 file, it does so in a subprocess that runs as exim:exim so as to get the
2025 ownership right at creation (otherwise, other Exim processes might see
2026 the file with the wrong ownership). There was no test for failure of this
2027 fork() call, which would lead to the process getting stuck as it waited
2028 for a non-existent subprocess. Forks do occasionally fail when resources
2029 run out. I reviewed all the other calls to fork(); they all seem to check
2030 for failure.
2031
f9b9210e
PH
2032PH/20 When checking for unexpected SMTP input at connect time (before writing
2033 the banner), Exim was not dealing correctly with a non-positive return
2034 from the read() function. If the client had disconnected by this time,
2035 the result was a log entry for a synchronization error with an empty
2036 string after "input=" when read() returned zero. If read() returned -1
2037 (an event I could not check), uninitialized data bytes were printed.
2038 There were reports of junk text (parts of files, etc) appearing after
2039 "input=".
2040
54cdb463
PH
2041PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2042
cf00dad6
PH
2043PH/22 Added support for macro redefinition, and (re)definition in between
2044 driver and ACL definitions.
2045
acb1b346
PH
2046PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2047 forgetting to use the resulting value; it was using the unexpanded value.
2048
c5ddb310
PH
2049PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2050 hadn't been configured. The fix is from Juergen Kreileder, who
2051 understands it better than I do:
2052
2053 "Here's what I see happening with three configured cyrus_sasl
2054 authenticators configured (plain, login, cram-md5):
2055
2056 On startup auth_cyrus_sasl_init() gets called for each of these.
2057 This means three calls to sasl_listmech() without a specified mech_list.
2058 => SASL tests which mechs of all available mechs actually work
2059 => three warnings about OTP not working
2060 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2061
2062 With the patch, sasl_listmech() also gets called three times. But now
2063 SASL's mech_list option is set to the server_mech specified in the the
2064 authenticator. Or in other words, the answer from sasl_listmech()
2065 gets limited to just the mech you're testing for (which is different
2066 for each call.)
2067 => the return list contains just 'plain' or 'login', 'cram-md5' or
2068 nothing depending on the value of ob->server_mech.
2069
2070 I've just tested the patch: Authentication still works fine,
2071 unavailable mechs specified in the exim configuration are still
2072 caught, and the auth.log warnings about OTP are gone."
2073
31619da6
PH
2074PH/25 When debugging is enabled, the contents of the command line are added
2075 to the debugging output, even when log_selector=+arguments is not
2076 specified.
2077
bebaf0fc
PH
2078PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2079 answer is "GNU", and only if the return is "GNU/something" is the answer
2080 "Linux".
2081
475fe28a
PH
2082PH/27 $acl_verify_message is now set immediately after the failure of a
2083 verification in an ACL, and so is available in subsequent modifiers. In
2084 particular, the message can be preserved by coding like this:
2085
2086 warn !verify = sender
2087 set acl_m0 = $acl_verify_message
2088
2089 Previously, $acl_verify_message was set only while expanding "message"
2090 and "log_message" when a very denied access.
2091
7e8bec7a
PH
2092PH/28 Modified OS/os.c-Linux with
2093
2094 -#ifndef OS_LOAD_AVERAGE
2095 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2096
2097 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2098 nomenclature these days.)
2099
e4a89c47
PH
2100PH/29 Installed patch from the Sieve maintainer that adds the options
2101 sieve_useraddress and sieve_subaddress to the redirect router.
2102
5ca2a9a1
PH
2103PH/30 In these circumstances:
2104 . Two addresses routed to the same list of hosts;
2105 . First host does not offer TLS;
2106 . First host accepts first address;
2107 . First host gives temporary error to second address;
2108 . Second host offers TLS and a TLS session is established;
2109 . Second host accepts second address.
2110 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2111 and peerdn, if requested) that were in fact used only for the second
2112 address.
7e8bec7a 2113
c688b954
PH
2114PH/31 When doing a callout as part of verifying an address, Exim was not paying
2115 attention to any local part prefix or suffix that was matched by the
2116 router that accepted the address. It now behaves in the same way as it
2117 does for delivery: the affixes are removed from the local part unless
2118 rcpt_include_affixes is set on the transport.
2119
fed77020
PH
2120PH/32 Add the sender address, as F=<...>, to the log line when logging a
2121 timeout during the DATA phase of an incoming message.
2122
7fe1560f
PH
2123PH/33 Sieve envelope tests were broken for match types other than :is. I have
2124 applied a patch sanctioned by the Sieve maintainer.
c688b954 2125
ebb6e6d5
PH
2126PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2127 the uid or gid is negative. A case of a negative gid caused this to be
2128 noticed. The fix allows for either to be negative.
2129
9c4e8f60
PH
2130PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2131 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2132 overlooked.
2133
2134PH/36 The change PH/12 above was broken. Fixed it.
2135
d7174846
PH
2136PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2137 the grounds that routing the same address twice would always produce the
2138 same answer. This might have been true once, but it is certainly no
2139 longer true now. Routing a child address may depend on the previous
2140 routing that produced that child. Some complicated redirection strategies
2141 went wrong when messages had multiple recipients, and made Exim's
2142 behaviour dependent on the order in which the addresses were given.
2143
2144 I have moved the duplicate checking until after the routing is complete.
2145 Exim scans the addresses that are assigned to local and remote
2146 transports, and removes any duplicates. This means that more work will be
2147 done, as duplicates will always all be routed, but duplicates are
2148 presumably rare, so I don't expect this is of any significance.
2149
2150 For deliveries to pipes, files, and autoreplies, the duplicate checking
2151 still happens during the routing process, since they are not going to be
2152 routed further.
2153
cfe75fc3
PH
2154PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2155 It corrects a timeout issue with spamd. This is Ian's comment: "The
2156 background is that sometimes spamd either never reads data from a
2157 connection it has accepted, or it never writes response data. The exiscan
2158 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2159 blindly assumes that writes won't block so it may never time out."
2160
be22d70e
PH
2161PH/39 Allow G after quota size as well as K and M.
2162
0612b098
PH
2163PH/40 The value set for $authenticated_id in an authenticator may not contain
2164 binary zeroes or newlines because the value is written to log lines and
2165 to spool files. There was no check on this. Now the value is run through
2166 the string_printing() function so that such characters are converted to
2167 printable escape sequences.
2168
2e0c1448
PH
2169PH/41 $message_linecount is a new variable that contains the total number of
2170 lines in the message. Compare $body_linecount, which is the count for the
2171 body only.
2172
447d236c
PH
2173PH/42 Exim no longer gives details of delivery errors for specific addresses in
2174 bounce and delay warning messages, except in certain special cases, which
2175 are as follows:
2176
2177 (a) An SMTP error message from a remote host;
2178 (b) A message specified in a :fail: redirection;
2179 (c) A message specified in a "fail" command in a system filter;
2180 (d) A message specified in a FAIL return from the queryprogram router;
2181 (e) A message specified by the cannot_route_message router option.
2182
2183 In these cases only, Exim does include the error details in bounce and
2184 warning messages. There are also a few cases where bland messages such
2185 as "unrouteable address" or "local delivery error" are given.
2186
d20976dc
PH
2187PH/43 $value is now also set for the "else" part of a ${run expansion.
2188
f656d135
PH
2189PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2190 being worked on, but at least Exim now implements the latest version to
2191 play with."
2192
2e2a30b4
PH
2193PH/45 In a pipe transport, although a timeout while waiting for the pipe
2194 process to complete was treated as a delivery failure, a timeout while
2195 writing the message to the pipe was logged, but erroneously treated as a
2196 successful delivery. Such timeouts include transport filter timeouts. For
2197 consistency with the overall process timeout, these timeouts are now
2198 treated as errors, giving rise to delivery failures by default. However,
2199 there is now a new Boolean option for the pipe transport called
2200 timeout_defer, which, if set TRUE, converts the failures into defers for
2201 both kinds of timeout. A transport filter timeout is now identified in
2202 the log output.
2203
9176e9f0
PH
2204PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2205 systems where "make" and "gmake" are different, calling "gmake" at top
2206 level broke things. I've arranged for the value of $(MAKE) to be passed
2207 from the Makefile to this script so that it can call the same version of
2208 "make".
2209
7982096b 2210
bbe902f0
PH
2211A note about Exim versions 4.44 and 4.50
2212----------------------------------------
2213
2214Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2215changes of various kinds. As a consequence, a big documentation update was
2216needed. This delayed the release for rather longer than seemed good, especially
2217in the light of a couple of (minor) security issues. Therefore, the changes
2218that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2219release. So 4.44 and 4.50 are in effect two different branches that both start
2220from 4.43.
2221
2222I have left the 4.50 change log unchanged; it contains all the changes since
22234.43. The change log for 4.44 is below; many of its items are identical to
2224those for 4.50. This seems to be the most sensible way to preserve the
2225historical information.
2226
2227
f7b63901 2228Exim version 4.50
495ae4b0
PH
2229-----------------
2230
5fe762f6
PH
2231 1. Minor wording change to the doc/README.SIEVE file.
2232
139059f6 2233 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2234 computation of the current number of files was incorrect.
495ae4b0 2235
7086e875
PH
2236 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2237 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2238 place.
2239
35af9f61
PH
2240 4. Give more explanation in the error message when the command for a transport
2241 filter fails to execute.
2242
b668c215
PH
2243 5. There are several places where Exim runs a non-Exim command in a
2244 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2245 was being done only for the command run by the queryprogram router. It is
2246 now done for all such subprocesses. The other cases are: ${run, transport
2247 filters, and the commands run by the lmtp and pipe transports.
2248
a494b1e1
PH
2249 6. Added CONFIGURE_GROUP build-time option.
2250
2251 7. Some older OS have a limit of 256 on the maximum number of file
2252 descriptors. Exim was using setrlimit() to set 1000 as a large value
2253 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2254 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2255
c5fcb476
PH
2256 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2257 was an oversight, and furthermore, ever since the addition of extra
2258 controls (e.g. 4.43/32), the checks on when to allow different forms of
2259 "control" were broken. There should now be diagnostics for all cases when a
2260 control that does not make sense is encountered.
2261
69358f02
PH
2262 9. Added the /retain_sender option to "control=submission".
2263
5be20824
PH
226410. $recipients is now available in the predata ACL (oversight).
2265
eb2c0248
PH
226611. Tidy the search cache before the fork to do a delivery from a message
2267 received from the command line. Otherwise the child will trigger a lookup
2268 failure and thereby defer the delivery if it tries to use (for example) a
2269 cached ldap connection that the parent has called unbind on.
2270
2a3eea10
PH
227112. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2272 of $address_data from the recipient verification was clobbered by the
2273 sender verification.
2274
227513. The value of address_data from a sender verification is now available in
2276 $sender_address_data in subsequent conditions in the ACL statement.
2277
23c7ff99
PH
227814. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2279
4deaf07d
PH
228015. Added a new option "connect=<time>" to callout options, to set a different
2281 connection timeout.
2282
926e1192
PH
228316. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2284 was its contents. (It was OK if the option was not defined at all.)
2285
650edc6f
PH
228617. A "Completed" log line is now written for messages that are removed from
2287 the spool by the -Mrm option.
2288
2c7db3f5
PH
228918. New variables $sender_verify_failure and $recipient_verify_failure contain
2290 information about exactly what failed.
2291
3d235903
PH
229219. Added -dd to debug only the daemon process.
2293
7c7ad977
PH
229420. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2295 handles timeouts, both on the server side and network timeouts. Renamed the
2296 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2297
981756db
PH
229821. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2299 It is now set to "smtps".
2300
d4eb88df
PH
230122. $host_address is now set to the target address during the checking of
2302 ignore_target_hosts.
2303
230423. When checking ignore_target_hosts for an ipliteral router, no host name was
2305 being passed; this would have caused $sender_host_name to have been used if
2306 matching the list had actually called for a host name (not very likely,
2307 since this list is usually IP addresses). A host name is now passed as
2308 "[x.x.x.x]".
2309
7d468ab8
PH
231024. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2311 code that specifies a non-restarting handler (typically sigaction() in
2312 modern systems) in an attempt to fix a rare and obscure crash bug.
2313
231425. Narrowed the window for a race in the daemon that could cause it to ignore
2315 SIGCHLD signals. This is not a major problem, because they are used only to
2316 wake it up if nothing else does.
2317
62c0818f
PH
231826. A malformed maildirsize file could cause Exim to calculate negative values
2319 for the mailbox size or file count. Odd effects could occur as a result.
2320 The maildirsize information is now recalculated if the size or filecount
2321 end up negative.
2322
26034054
PH
232327. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2324 support for a long time. Removed HAVE_SYS_VFS_H.
2325
af66f652
PH
232628. Installed the latest version of exipick from John Jetmore.
2327
90af77f4
PH
232829. In an address list, if the pattern was not a regular expression, an empty
2329 subject address (from a bounce message) matched only if the pattern was an
2330 empty string. Non-empty patterns were not even tested. This was the wrong
2331 because it is perfectly reasonable to use an empty address as part of a
2332 database query. An empty address is now tested by patterns that are
2333 lookups. However, all the other forms of pattern expect the subject to
2334 contain a local part and a domain, and therefore, for them, an empty
2335 address still always fails if the pattern is not itself empty.
2336
d8ef3577
PH
233730. Exim went into a mad DNS loop when attempting to do a callout where the
2338 host was specified on an smtp transport, and looking it up yielded more
2339 than one IP address.
2340
5cb8cbc6
PH
234131. Re-factored the code for checking spool and log partition space into a
2342 function that finds that data and another that does the check. The former
2343 is then used to implement four new variables: $spool_space, $log_space,
2344 $spool_inodes, and $log_inodes.
2345
14702f5b
PH
234632. The RFC2047 encoding function was originally intended for short strings
2347 such as real names; it was not keeping to the 75-character limit for
2348 encoded words that the RFC imposes. It now respects the limit, and
2349 generates multiple encoded words if necessary. To be on the safe side, I
2350 have increased the buffer size for the ${rfc2047: expansion operator from
2351 1024 to 2048 bytes.
2352
063b1e99
PH
235333. It is now permitted to omit both strings after an "if" condition; if the
2354 condition is true, the result is "true". As before, when the second string
2355 is omitted, a false condition yields an empty string. This makes it less
2356 cumbersome to write custom ACL and router conditions.
2357
652e1b65
PH
235834. Failure to deliver a bounce message always caused it to be frozen, even if
2359 there was an errors_to setting on the router. The errors_to setting is now
2360 respected.
2361
6f0c9a4f
PH
236235. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2363 canonical form (fully expanded) before being placed in
2364 $sender_host_address.
2365
33397d19
PH
236636. The table in the code that translates DNS record types into text (T_A to
2367 "A" for instance) was missing entries for NS and CNAME. It is just possible
2368 that this could have caused confusion if both these types were looked up
2369 for the same domain, because the text type is used as part of Exim's
2370 per-process caching. But the chance of anyone hitting this buglet seems
2371 very small.
2372
7bb56e1f
PH
237337. The dnsdb lookup has been extended in a number of ways.
2374
2375 (1) There is a new type, "zns", which walks up the domain tree until it
2376 finds some nameserver records. It should be used with care.
2377
ea3bc19b
PH
2378 (2) There is a new type, "mxh", which is like "mx" except that it returns
2379 just the host names, not the priorities.
2380
2381 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2382 looked up. The behaviour when one of the lookups defers can be
2383 controlled by a keyword.
7bb56e1f 2384
ea3bc19b 2385 (4) It is now possible to specify the separator character for use when
7bb56e1f 2386 multiple records are returned.
33397d19 2387
0bcb2a0e
PH
238838. The dnslists ACL condition has been extended: it is now possible to supply
2389 a list of IP addresses and/or domains to be looked up in a particular DNS
2390 domain.
2391
2ac0e484
PH
239239. Added log_selector=+queue_time_overall.
2393
4e1fde53
PH
239440. When running the queue in the test harness, wait just a tad after forking a
2395 delivery process, to get repeatability of debugging output.
2396
de365ded
PH
239741. Include certificate and key file names in error message when GnuTLS fails
2398 to set them up, because the GnuTLS error message doesn't include the name
2399 of the failing file when there is a problem reading it.
2400
f05da2e8
PH
240142. Allow both -bf and -bF in the same test run.
2402
d6453af2
PH
240343. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2404
f7b63901
PH
240544. The "Exiscan patch" is now merged into the mainline Exim source.
2406
240745. Sometimes the final signoff response after QUIT could fail to get
2408 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2409 < 0 before doing a fflush(). This bug looks as though it goes back to the
2410 introduction of TLS in release 3.20, but "sometimes" must have been rare
2411 because the tests only now provoked it.
2412
a444213a
PH
241346. Reset the locale to "C" after calling embedded Perl, in case it was changed
2414 (this can affect the format of dates).
2415
0ec020ea
PH
241647. exim_tidydb, when checking for the continued existence of a message for
2417 which it has found a message-specific retry record, was not finding
2418 messages that were in split spool directories. Consequently, it was
2419 deleting retry records that should have stayed in existence.
2420
b1206957
PH
242148. Steve fixed some bugs in eximstats.
2422
242349. The SPA authentication driver was not abandoning authentication and moving
2424 on to the next authenticator when an expansion was forced to fail,
2425 contradicting the general specification for all authenticators. Instead it
2426 was generating a temporary error. It now behaves as specified.
2427
26dd5a95
PH
242850. The default ordering of permitted cipher suites for GnuTLS was pessimal
2429 (the order specifies the preference for clients). The order is now AES256,
2430 AES128, 3DES, ARCFOUR128.
2431
343b2385
PH
243251. Small patch to Sieve code - explicitly set From: when generating an
2433 autoreply.
2434
1c5466b9
PH
243552. Exim crashed if a remote delivery caused a very long error message to be
2436 recorded - for instance if somebody sent an entire SpamAssassin report back
2437 as a large number of 550 error lines. This bug was coincidentally fixed by
2438 increasing the size of one of Exim's internal buffers (big_buffer) that
2439 happened as part of the Exiscan merge. However, to be on the safe side, I
2440 have made the code more robust (and fixed the comments that describe what
2441 is going on).
2442
55ee9ee3
PH
244353. Now that there can be additional text after "Completed" in log lines (if
2444 the queue_time_overall log selector is set), a one-byte patch to exigrep
2445 was needed to allow it to recognize "Completed" as not the last thing in
2446 the line.
2447
d38f8232
PH
244854. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2449 patch that reportedly fixes this has been added. I am not expert enough to
2450 create a test for it. This is what the patch creator wrote:
2451
2452 "I found a little strange behaviour of ldap code when working with
2453 Windows 2003 AD Domain, where users was placed in more than one
2454 Organization Units. When I tried to give exim partial DN, the exit code
2455 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2456 But simultaneously result of request was absolutely normal ldap result,
2457 so I produce this patch..."
2458
3295e65b
PH
2459 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2460 REFERENCE, so I have modified the code to exclude the patch when that macro
2461 is not defined.
2462
7102e136
PH
246355. Some experimental protocols are using DNS PTR records for new purposes. The
2464 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2465 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2466 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2467 CAN-2005-0021
7102e136 2468
3ca0ba97
PH
246956. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2470
c2bcbe20
PH
247157. Double the size of the debug message buffer (to 2048) so that more of very
2472 long debug lines gets shown.
2473
18ce445d
PH
247458. The exicyclog utility now does better if the number of log files to keep
2475 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2476
1f5b4c3d
PH
247759. Two changes related to the smtp_active_hostname option:
2478
2479 (1) $smtp_active_hostname is now available as a variable.
2480 (2) The default for smtp_banner uses $smtp_active_hostname instead
2481 of $primary_hostname.
2482
b975ba52
PH
248360. The host_aton() function is supposed to be passed a string that is known
2484 to be a valid IP address. However, in the case of IPv6 addresses, it was
2485 not checking this. This is a hostage to fortune. Exim now panics and dies
2486 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2487 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2488 components; fortuitously, this particular loophole had already been fixed
2489 by change 4.50/55 above.
2490
2491 If there are any other similar loopholes, the new check in host_aton()
2492 itself should stop them being exploited. The report I received stated that
2493 data on the command line could provoke the exploit when Exim was running as
2494 exim, but did not say which command line option was involved. All I could
2495 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2496 running as the user.
ea3a6f44 2497 CAN-2005-0021
85b87bc2
PH
2498
249961. There was a buffer overflow vulnerability in the SPA authentication code
2500 (which came originally from the Samba project). I have added a test to the
2501 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2502 CAN-2005-0022
b975ba52 2503
17ffcae7
PH
250462. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2505 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2506
d95f9fdb
PH
250763. The daemon start-up calls getloadavg() while still root for those OS that
2508 need the first call to be done as root, but it missed one case: when
2509 deliver_queue_load_max is set with deliver_drop_privilege. This is
2510 necessary for the benefit of the queue runner, because there is no re-exec
2511 when deliver_drop_privilege is set.
2512
86b8287f
PH
251364. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2514 This has been fixed.
2515
60dc5e56
PH
251665. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2517 was in use, was not putting the data itself into the right store pool;
2518 consequently, it could be overwritten for a subsequent message in the same
2519 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2520 the caching.)
2521
533244af
PH
252266. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2523
a5a28604
PH
252467. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2525 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2526 the function were treating the return as a boolean value, which happened to
2527 work because 0=false and not-0=true, but is not correct code.
2528
7e634d24
PH
252968. The host_aton() function was not handling scoped IPv6 addresses (those
2530 with, for example, "%eth0" on the end) correctly.
2531
3e11c26b
PH
253269. Fixed some compiler warnings in acl.c for the bitmaps specified with
2533 negated items (that is, ~something) in unsigned ints. Some compilers
2534 apparently mutter when there is no cast.
2535
6729cf78
PH
253670. If an address verification called from an ACL failed, and did not produce a
2537 user-specific message (i.e. there was only a "system" message), nothing was
2538 put in $acl_verify_message. In this situation, it now puts the system
2539 message there.
2540
00f00ca5
PH
254171. Change 4.23/11 added synchronization checking at the start of an SMTP
2542 session; change 4.31/43 added the unwanted input to the log line - except
2543 that it did not do this in the start of session case. It now does.
2544
c9bdd01c
PH
254572. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2546 This is wrong and can cause the other end to generate a synchronization
2547 error if it is another Exim or anything else that does the synchronization
2548 check. A QUIT command is no longer sent after a timeout.
2549
d43194df
PH
255073. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2551 during host lookups.
2552
fe5b5d0b
PH
255374. The defer_ok option of callout verification was not working if it was used
2554 when verifying addresses in header lines, that is, for this case:
2555
2556 verify = header_sender/callout=defer_ok
2557
76a2d7ba
PH
255875. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2559 those file descriptors could be used for SMTP connections. If anything
2560 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2561 could be sent to the SMTP client, causing chaos. The daemon now opens
2562 stdin, stdout, and stderr to /dev/null when it puts itself into the
2563 background.
2564
256576. Arrange for output from Perl's "warn" command to be written to Exim's main
2566 log by default. The user can override this with suitable Perl magic.
2567
04f7d5b9
PH
256877. The use of log_message on a "discard" ACL verb, which is supposed to add to
2569 the log message when discard triggers, was not working for the DATA ACL or
2570 for the non-SMTP ACL.
2571
bc60667e
PH
257278. Error message wording change in sieve.c.
2573
bb6e88ff
PH
257479. If smtp_accept_max_per_host was set, the number of connections could be
2575 restricted to fewer than expected, because the daemon was trying to set up
2576 a new connection before checking whether the processes handling previous
2577 connections had finished. The check for completed processes is now done
2578 earlier. On busy systems, this bug wouldn't be noticed because something
2579 else would have woken the daemon, and it would have reaped the completed
2580 process earlier.
2581
1e70f85b
PH
258280. If a message was submitted locally by a user whose login name contained one
2583 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2584 It caused a spool format error. I have fixed the spool reading code. A
2585 related problem was that the "from" clause in the Received: line became
2586 illegal because of the space(s). It is now covered by ${quote_local_part.
2587
258881. Included the latest eximstats from Steve (adds average sizes to HTML Top
2589 tables).
2590
4e01f9d6
PH
259182. Updated OS/Makefile-AIX as per message from Mike Meredith.
2592
1ee1cef2
PH
259383. Patch from Sieve maintainer to fix unterminated string problem in
2594 "vacation" handling.
2595
6e2b4ccc
PH
259684. Some minor changes to the Linux configuration files to help with other
2597 OS variants using glibc.
2598
8e669ac1
PH
259985. One more patch for Sieve to update vacation handling to latest spec.
2600
495ae4b0 2601
bbe902f0
PH
2602----------------------------------------------------
2603See the note above about the 4.44 and 4.50 releases.
2604----------------------------------------------------
2605
2606
2607Exim version 4.44
2608-----------------
2609
2610 1. Change 4.43/35 introduced a bug that caused file counts to be
2611 incorrectly computed when quota_filecount was set in an appendfile
2612 transport
2613
2614 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2615 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2616 place.
2617
2618 3. Give more explanation in the error message when the command for a transport
2619 filter fails to execute.
2620
2621 4. There are several places where Exim runs a non-Exim command in a
2622 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2623 was being done only for the command run by the queryprogram router. It is
2624 now done for all such subprocesses. The other cases are: ${run, transport
2625 filters, and the commands run by the lmtp and pipe transports.
2626
2627 5. Some older OS have a limit of 256 on the maximum number of file
2628 descriptors. Exim was using setrlimit() to set 1000 as a large value
2629 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2630 systems. I've change it so that if it can't get 1000, it tries for 256.
2631
2632 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2633 was an oversight, and furthermore, ever since the addition of extra
2634 controls (e.g. 4.43/32), the checks on when to allow different forms of
2635 "control" were broken. There should now be diagnostics for all cases when a
2636 control that does not make sense is encountered.
2637
2638 7. $recipients is now available in the predata ACL (oversight).
2639
2640 8. Tidy the search cache before the fork to do a delivery from a message
2641 received from the command line. Otherwise the child will trigger a lookup
2642 failure and thereby defer the delivery if it tries to use (for example) a
2643 cached ldap connection that the parent has called unbind on.
2644
2645 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2646 of $address_data from the recipient verification was clobbered by the
2647 sender verification.
2648
264910. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2650 was its contents. (It was OK if the option was not defined at all.)
2651
265211. A "Completed" log line is now written for messages that are removed from
2653 the spool by the -Mrm option.
2654
265512. $host_address is now set to the target address during the checking of
2656 ignore_target_hosts.
2657
265813. When checking ignore_target_hosts for an ipliteral router, no host name was
2659 being passed; this would have caused $sender_host_name to have been used if
2660 matching the list had actually called for a host name (not very likely,
2661 since this list is usually IP addresses). A host name is now passed as
2662 "[x.x.x.x]".
2663
266414. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2665 code that specifies a non-restarting handler (typically sigaction() in
2666 modern systems) in an attempt to fix a rare and obscure crash bug.
2667
266815. Narrowed the window for a race in the daemon that could cause it to ignore
2669 SIGCHLD signals. This is not a major problem, because they are used only to
2670 wake it up if nothing else does.
2671
267216. A malformed maildirsize file could cause Exim to calculate negative values
2673 for the mailbox size or file count. Odd effects could occur as a result.
2674 The maildirsize information is now recalculated if the size or filecount
2675 end up negative.
2676
267717. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2678 support for a long time. Removed HAVE_SYS_VFS_H.
2679
ea3a6f44 268018. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2681
268219. Allow an empty sender to be matched against a lookup in an address list.
2683 Previously the only cases considered were a regular expression, or an
2684 empty pattern.
2685
268620. Exim went into a mad DNS lookup loop when doing a callout where the
2687 host was specified on the transport, if the DNS lookup yielded more than
2688 one IP address.
2689
ea3a6f44
NM
269021. The RFC2047 encoding function was originally intended for short strings
2691 such as real names; it was not keeping to the 75-character limit for
2692 encoded words that the RFC imposes. It now respects the limit, and
2693 generates multiple encoded words if necessary. To be on the safe side, I
2694 have increased the buffer size for the ${rfc2047: expansion operator from
2695 1024 to 2048 bytes.
bbe902f0 2696
ea3a6f44
NM
269722. Failure to deliver a bounce message always caused it to be frozen, even if
2698 there was an errors_to setting on the router. The errors_to setting is now
2699 respected.
bbe902f0
PH
2700
270123. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2702 canonical form (fully expanded) before being placed in
2703 $sender_host_address.
2704
270524. Updated eximstats to version 1.33
2706
ea3a6f44
NM
270725. Include certificate and key file names in error message when GnuTLS fails
2708 to set them up, because the GnuTLS error message doesn't include the name
2709 of the failing file when there is a problem reading it.
bbe902f0
PH
2710
271126. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2712 As per change 25.
bbe902f0 2713
ea3a6f44
NM
271427. Reset the locale to "C" after calling embedded Perl, in case it was changed
2715 (this can affect the format of dates).
bbe902f0 2716
ea3a6f44
NM
271728. exim_tidydb, when checking for the continued existence of a message for
2718 which it has found a message-specific retry record, was not finding
2719 messages that were in split spool directories. Consequently, it was
2720 deleting retry records that should have stayed in existence.
bbe902f0
PH
2721
272229. eximstats updated to version 1.35
2723 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2724 1.35 - bugfix such that pie charts by volume are generated correctly
2725
ea3a6f44
NM
272630. The SPA authentication driver was not abandoning authentication and moving
2727 on to the next authenticator when an expansion was forced to fail,
2728 contradicting the general specification for all authenticators. Instead it
2729 was generating a temporary error. It now behaves as specified.
bbe902f0 2730
ea3a6f44
NM
273131. The default ordering of permitted cipher suites for GnuTLS was pessimal
2732 (the order specifies the preference for clients). The order is now AES256,
2733 AES128, 3DES, ARCFOUR128.
bbe902f0 2734
ea3a6f44
NM
273531. Small patch to Sieve code - explicitly set From: when generating an
2736 autoreply.
bbe902f0 2737
ea3a6f44
NM
273832. Exim crashed if a remote delivery caused a very long error message to be
2739 recorded - for instance if somebody sent an entire SpamAssassin report back
2740 as a large number of 550 error lines. This bug was coincidentally fixed by
2741 increasing the size of one of Exim's internal buffers (big_buffer) that
2742 happened as part of the Exiscan merge. However, to be on the safe side, I
2743 have made the code more robust (and fixed the comments that describe what
2744 is going on).
bbe902f0 2745
ea3a6f44
NM
274633. Some experimental protocols are using DNS PTR records for new purposes. The
2747 keys for these records are domain names, not reversed IP addresses. The
2748 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2749 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2750 CAN-2005-0021
2751
ea3a6f44
NM
275234. The host_aton() function is supposed to be passed a string that is known
2753 to be a valid IP address. However, in the case of IPv6 addresses, it was
2754 not checking this. This is a hostage to fortune. Exim now panics and dies
2755 if the condition is not met. A case was found where this could be provoked
2756 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2757 components; fortuitously, this particular loophole had already been fixed
2758 by change 4.50/55 or 4.44/33 above.
2759
2760 If there are any other similar loopholes, the new check in host_aton()
2761 itself should stop them being exploited. The report I received stated that
2762 data on the command line could provoke the exploit when Exim was running as
2763 exim, but did not say which command line option was involved. All I could
2764 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2765 running as the user.
bbe902f0
PH
2766 CAN-2005-0021
2767
ea3a6f44
NM
276835. There was a buffer overflow vulnerability in the SPA authentication code
2769 (which came originally from the Samba project). I have added a test to the
2770 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2771 CAN-2005-0022
2772
ea3a6f44
NM
277336. The daemon start-up calls getloadavg() while still root for those OS that
2774 need the first call to be done as root, but it missed one case: when
2775 deliver_queue_load_max is set with deliver_drop_privilege. This is
2776 necessary for the benefit of the queue runner, because there is no re-exec
2777 when deliver_drop_privilege is set.
bbe902f0 2778
ea3a6f44
NM
277937. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2780 was in use, was not putting the data itself into the right store pool;
2781 consequently, it could be overwritten for a subsequent message in the same
2782 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2783 the caching.)
bbe902f0 2784
ea3a6f44
NM
278538. Sometimes the final signoff response after QUIT could fail to get
2786 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2787 < 0 before doing a fflush(). This bug looks as though it goes back to the
2788 introduction of TLS in release 3.20, but "sometimes" must have been rare
2789 because the tests only now provoked it.
bbe902f0
PH
2790
2791
495ae4b0
PH
2792Exim version 4.43
2793-----------------
2794
2795 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2796 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2797 Now it returns an integer. A number of calls were still expecting a T/F
2798 return. Fortuitously, in all cases, the tests worked in OK situations,
2799 which is the norm. However, things would have gone wrong on any write
2800 failures on the smtp file descriptor. This function is used when sending
2801 messages over SMTP and also when doing verify callouts.
2802
2803 2. When Exim is called to do synchronous delivery of a locally submitted
2804 message (the -odf or -odi options), it no longer closes stderr before doing
2805 the delivery.
2806
2807 3. Implemented the mua_wrapper option.
2808
2809 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2810
2811 5. Implemented the functions header_remove(), header_testname(),
2812 header_add_at_position(), and receive_remove_recipient(), and exported them
2813 to local_scan().
2814
2815 6. If an ACL "warn" statement specified the addition of headers, Exim already
2816 inserted X-ACL-Warn: at the start if there was no header name. However, it
2817 was not making this test for the second and subsequent header lines if
2818 there were newlines in the string. This meant that an invalid header could
2819 be inserted if Exim was badly configured.
2820
2821 7. Allow an ACL "warn" statement to add header lines at the start or after all
2822 the Received: headers, as well as at the end.
2823
2824 8. Added the rcpt_4xx retry error code.
2825
2826 9. Added postmaster_mailfrom=xxx to callout verification option.
2827
282810. Added mailfrom=xxxx to the callout verification option, for verify=
2829 header_sender only.
2830
283111. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2832 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2833
283412. Inserted some casts to stop certain compilers warning when using pointer
2835 differences as field lengths or precisions in printf-type calls (mostly
2836 affecting debugging statements).
2837
283813. Added optional readline() support for -be (dynamically loaded).
2839
284014. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2841 same clock tick as a message's arrival, so that its received time was the
2842 same as the "first fail" time on the retry record, and that message
2843 remained on the queue past the ultimate address timeout, every queue runner
2844 would try a delivery (because it was past the ultimate address timeout) but
2845 after another failure, the ultimate address timeout, which should have then
2846 bounced the address, did not kick in. This was a "< instead of <=" error;
2847 in most cases the first failure would have been in the next clock tick
2848 after the received time, and all would be well.
2849
285015. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2851 being recognized when the domain list was tested by the match_domain
2852 condition in an expansion string.
2853
285416. Added the ${str2b64: operator.
2855
285617. Exim was always calling setrlimit() to set a large limit for the number of
2857 processes, without checking whether the existing limit was already
2858 adequate. (It did check for the limit on file descriptors.) Furthermore,
2859 errors from getrlimit() and setrlimit() were being ignored. Now they are
2860 logged to the main and panic logs, but Exim does carry on, to try to do its
2861 job under whatever limits there are.
2862
286318. Imported PCRE 5.0.
2864
286519. Trivial typo in log message " temporarily refused connection" (the leading
2866 space).
2867
286820. If the log selector return_path_on_delivery was set and an address was
2869 redirected to /dev/null, the delivery process crashed because it assumed
2870 that a return path would always be set for a "successful" delivery. In this
2871 case, the whole delivery is bypassed as an optimization, and therefore no
2872 return path is set.
2873
287421. Internal re-arrangement: the function for sending a challenge and reading
2875 a response while authentication was assuming a zero-terminated challenge
2876 string. It's now changed to take a pointer and a length, to allow for
2877 binary data in such strings.
2878
287922. Added the cyrus_sasl authenticator (code supplied by MBM).
2880
288123. Exim was not respecting finduser_retries when seeking the login of the
2882 uid under which it was called; it was always trying 10 times. (The default
2883 setting of finduser_retries is zero.) Also, it was sleeping after the final
2884 failure, which is pointless.
2885
288624. Implemented tls_on_connect_ports.
2887
288825. Implemented acl_smtp_predata.
2889
289026. If the domain in control=submission is set empty, Exim assumes that the
2891 authenticated id is a complete email address when it generates From: or
2892 Sender: header lines.
2893
289427. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2895 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2896 chown and chgrp in /bin and hostname in /usr/bin.
2897
289828. Exim was keeping the "process log" file open after each use, just as it
2899 does for the main log. This opens the possibility of it remaining open for
2900 long periods when the USR1 signal hits a daemon. Occasional processlog
2901 errors were reported, that could have been caused by this. Anyway, it seems
2902 much more sensible not to leave this file open at all, so that is what now
2903 happens.
2904
290529. The long-running daemon process does not normally write to the log once it
2906 has entered its main loop, and it closes the log before doing so. This is
2907 so that log files can straightforwardly be renamed and moved. However,
2908 there are a couple of unusual error situations where the daemon does write
2909 log entries, and I had neglected to close the log afterwards.
2910
291130. The text of an SMTP error response that was received during a remote
2912 delivery was being truncated at 512 bytes. This is too short for some of
2913 the long messages that one sometimes sees. I've increased the limit to
2914 1024.
2915
291631. It is now possible to make retry rules that apply only when a message has a
2917 specific sender, in particular, an empty sender.
2918
291932. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2920 it possible to be selective about when SMTP synchronization is enforced.
2921
292233. Added "control = caseful_local_part" and "control = "caselower_local_part".
2923
292432. Implemented hosts_connection_nolog.
2925
292633. Added an ACL for QUIT.
2927
292834. Setting "delay_warning=" to disable warnings was not working; it gave a
2929 syntax error.
2930
293135. Added mailbox_size and mailbox_filecount to appendfile.
2932
293336. Added control = no_multiline_responses to ACLs.
2934
293537. There was a bug in the logic of the code that waits for the clock to tick
2936 in the case where the clock went backwards by a substantial amount such
2937 that the microsecond fraction of "now" was more than the microsecond
2938 fraction of "then" (but the whole seconds number was less).
2939
294038. Added support for the libradius Radius client library this is found on
2941 FreeBSD (previously only the radiusclient library was supported).
2942
2943
2944Exim version 4.42
2945-----------------
2946
2947 1. When certain lookups returned multiple values in the form name=value, the
2948 quoting of the values was not always being done properly. Specifically:
2949 (a) If the value started with a double quote, but contained no whitespace,
2950 it was not quoted.
2951 (b) If the value contained whitespace other than a space character (i.e.
2952 tabs or newlines or carriage returns) it was not quoted.
2953 This fix has been applied to the mysql and pgsql lookups by writing a
2954 separate quoting function and calling it from the lookup code. The fix
2955 should probably also be applied to nisplus, ibase and oracle lookups, but
2956 since I cannot test any of those, I have not disturbed their existing code.
2957
2958 2. A hit in the callout cache for a specific address caused a log line with no
2959 reason for rejecting RCPT. Now it says "Previous (cached) callout
2960 verification failure".
2961
2962 3. There was an off-by-one bug in the queryprogram router. An over-long
2963 return line was truncated at 256 instead of 255 characters, thereby
2964 overflowing its buffer with the terminating zero. As well as fixing this, I
2965 have increased the buffer size to 1024 (and made a note to document this).
2966
2967 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2968 when Exim is waiting for an SMTP response from a remote server, Exim
2969 restarts its select() call on the socket, thereby resetting its timeout.
2970 This is not a problem when such interrupts are rare. Somebody set up a cron
2971 job to run exiwhat every 2 minutes, which is less than the normal select()
2972 timeout (5 or 10 minutes). This meant that the select() timeout never
2973 kicked in because it was always reset. I have fixed this by comparing the
2974 time when an interrupt arrives with the time at the start of the first call
2975 to select(). If more time than the timeout has elapsed, the interrupt is
2976 treated as a timeout.
2977
2978 5. Some internal re-factoring in preparation for the addition of Sieve
2979 extensions (by MH). In particular, the "personal" test is moved to a
2980 separate function, and given an option for scanning Cc: and Bcc: (which is
2981 not set for Exim filters).
2982
2983 6. When Exim created an email address using the login of the caller as the
2984 local part (e.g. when creating a From: or Sender: header line), it was not
2985 quoting the local part when it contained special characters such as @.
2986
2987 7. Installed new OpenBSD configuration files.
2988
2989 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2990 try to make them clearer.
2991
2992 9. Callout options, other than the timeout value, were being ignored when
2993 verifying sender addresses in header lines. For example, when using
2994
2995 verify = header_sender/callout=no_cache
2996
2997 the cache was (incorrectly) being used.
2998
299910. Added a missing instance of ${EXE} to the exim_install script; this affects
3000 only the Cygwin environment.
3001
300211. When return_path_on_delivery was set as a log selector, if different remote
3003 addresses in the same message used different return paths and parallel
3004 remote delivery occurred, the wrong values would sometimes be logged.
3005 (Whenever a remote delivery process finished, the return path value from
3006 the most recently started remote delivery process was logged.)
3007
300812. RFC 3848 specifies standard names for the "with" phrase in Received: header
3009 lines when AUTH and/or TLS are in use. This is the "received protocol"
3010 field. Exim used to use "asmtp" for authenticated SMTP, without any
3011 indication (in the protocol name) for TLS use. Now it follows the RFC and
3012 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3013 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3014 names appear in log lines as well as in Received: header lines.
3015
301613. Installed MH's patches for Sieve to add the "copy" and "vacation"
3017 extensions, and comparison tests, and to fix some bugs.
3018
301914. Changes to the "personal" filter test:
3020
3021 (1) The test was buggy in that it was just doing the equivalent of
3022 "contains" tests on header lines. For example, if a user's address was
3023 anne@some.where, the "personal" test would incorrectly be true for
3024
3025 To: susanne@some.where
3026
3027 This test is now done by extracting each address from the header in turn,
3028 and checking the entire address. Other tests that are part of "personal"
3029 are now done using regular expressions (for example, to check local parts
3030 of addresses in From: header lines).
3031
3032 (2) The list of non-personal local parts in From: addresses has been
3033 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3034 taken from the Sieve specification recommendations.
3035
3036 (3) If the message contains any header line starting with "List-" it is
3037 treated as non-personal.
3038
3039 (4) The test for "circular" in the Subject: header line has been removed
3040 because it now seems ill-conceived.
3041
304215. Minor typos in src/EDITME comments corrected.
3043
304416. Installed latest exipick from John Jetmore.
3045
304617. If headers_add on a router specified a text string that was too long for
3047 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3048 of string_sprintf() is now avoided.
3049
305018. $message_body_size was not set (it was always zero) when running the DATA
3051 ACL and the local_scan() function.
3052
305319. For the "mail" command in an Exim filter, no default was being set for
3054 the once_repeat time, causing a random time value to be used if "once" was
3055 specified. (If the value happened to be <= 0, no repeat happened.) The
3056 default is now 0s, meaning "never repeat". The "vacation" command was OK
3057 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3058 (I found it when inspecting the code).
3059
306020. There is now an overall timeout for performing a callout verification. It
3061 defaults to 4 times the callout timeout, which applies to individual SMTP
3062 commands during the callout. The overall timeout applies when there is more
3063 than one host that can be tried. The timeout is checked before trying the
3064 next host. This prevents very long delays if there are a large number of
3065 hosts and all are timing out (e.g. when the network connections are timing
3066 out). The value of the overall timeout can be changed by specifying an
3067 additional sub-option for "callout", called "maxwait". For example:
3068
3069 verify = sender/callout=5s,maxwait=20s
3070
307121. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3072 to the end before writing, but this should make it even safer).
3073
307422. Exim was forgetting that it had advertised PIPELINING for the second and
3075 subsequent messages on an SMTP connection. It was also not resetting its
3076 memory on STARTTLS and an internal HELO.
3077
307823. When Exim logs an SMTP synchronization error within a session, it now
3079 records whether PIPELINING has been advertised or not.
3080
308124. Added 3 instances of "(long int)" casts to time_t variables that were being
3082 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3083 rather than long int.
3084
308525. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3086
308726. Added the never_mail option to autoreply.
3088
3089
3090Exim version 4.41
3091-----------------
3092
3093 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3094 crash if the getsockname() call failed; this can happen if a connection is
3095 closed very soon after it is established. The problem was simply in the
3096 order in which certain operations were done, causing Exim to try to write
3097 to the SMTP stream before it had set up the file descriptor. The bug has
3098 been fixed by making things happen in the correct order.
3099
3100
3101Exim version 4.40
3102-----------------
3103
3104 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3105 before the connection was closed, thus losing the rejection response.
3106
3107 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3108 some early Solaris releases, but causes trouble in current releases where
3109 socklen_t is defined.
3110
3111 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3112 always exist.
3113
3114 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3115 configured.
3116
3117 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3118 that releasing the top of it at the end releases what was used for sub-
3119 expansions (unless the block got too big). However, discard this block if
3120 the first thing is a variable or header, so that we can use its block when
3121 it is dynamic (useful for very large $message_headers, for example).
3122
3123 6. Lookups now cache *every* query, not just the most recent. A new, separate
3124 store pool is used for this. It can be recovered when all lookup caches are
3125 flushed. Lookups now release memory at the end of their result strings.
3126 This has involved some general refactoring of the lookup sources.
3127
3128 7. Some code has been added to the store_xxx() functions to reduce the amount
3129 of flapping under certain conditions.
3130
3131 8. log_incoming_interface used to affect only the <= reception log lines. Now
3132 it causes the local interface and port to be added to several more SMTP log
3133 lines, for example "SMTP connection from", and rejection lines.
3134
3135 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3136
313710. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3138
313911. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3140 could be overwritten at the end of the current message (or the start of a
3141 new message if it was set in a HELO ACL). The value is now preserved for
3142 the duration of the SMTP connection.
3143
314412. If a transport had a headers_rewrite setting, and a matching header line
3145 contained an unqualified address, that address was qualified, even if it
3146 did not match any rewriting rules. The underlying bug was that the values
3147 of the flags that permit the existence of unqualified sender and recipient
3148 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3149 non-local messages, and by -bnq for local messages) were not being
3150 preserved with the message after it was received.
3151
315213. When Exim was logging an SMTP synchronization error, it could sometimes log
3153 "next input=" as part of the text comprising the host identity instead of
3154 the correct text. The code was using the same buffer for two different
3155 strings. However, depending on which order the printing function evaluated
3156 its arguments, the bug did not always show up. Under Linux, for example, my
3157 test suite worked just fine.
3158
315914. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3160 doesn't work with some older versions of Perl. It has been changed to "my",
3161 which in any case is probably the better facility to use.
3162
316315. A really picky compiler found some instances of statements for creating
3164 error messages that either had too many or two few arguments for the format
3165 string.
3166
316716. The size of the buffer for calls to the DNS resolver has been increased
3168 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3169 for addresses that have a lot of PTR records. This alleviates a problem; it
3170 does not fully solve it.
3171
317217. A dnsdb lookup for PTR records that receives more data than will fit in the
3173 buffer now truncates the list and logs the incident, which is the same
3174 action as happens when Exim is looking up a host name and its aliases.
3175 Previously in this situation something unpredictable would happen;
3176 sometimes it was "internal error: store_reset failed".
3177
317818. If a server dropped the connection unexpectedly when an Exim client was
3179 using GnuTLS and trying to read a response, the client delivery process
3180 crashed while trying to generate an error log message.
3181
318219. If a "warn" verb in an ACL added multiple headers to a message in a single
3183 string, for example:
3184
3185 warn message = H1: something\nH2: something
3186
3187 the text was added as a single header line from Exim's point of view
3188 though it ended up OK in the delivered message. However, searching for the
3189 second and subsequent header lines using $h_h2: did not work. This has been
3190 fixed. Similarly, if a system filter added multiple headers in this way,
3191 the routers could not see them.
3192
319320. Expanded the error message when iplsearch is called with an invalid key to
3194 suggest using net-iplsearch in a host list.
3195
319621. When running tests using -bh, any delays imposed by "delay" modifiers in
3197 ACLs are no longer actually imposed (and a message to that effect is
3198 output).
3199
320022. If a "gecos" field in a passwd entry contained escaped characters, in
3201 particular, if it contained a \" sequence, Exim got it wrong when building
3202 a From: or a Sender: header from that name. A second bug also caused
3203 incorrect handling when an unquoted " was present following a character
3204 that needed quoting.
3205
320623. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3207 was not being matched caselessly.
3208
320924. Arranged for all hyphens in the exim.8 source to be escaped with
3210 backslashes.
3211
321225. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3213 properly. Recipient callout cache records were still being keyed to include
3214 the sender, even when use_sender was set false. This led to far more
3215 callouts that were necessary. The sender is no longer included in the key
3216 when use_sender is false.
3217
321826. Added "control = submission" modifier to ACLs.
3219
322027. Added the ${base62d: operator to decode base 62 numbers.
3221
322228. dnsdb lookups can now access SRV records.
3223
322429. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3225 the configuration file.
3226
322730. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3228 (-v) mode. This makes the output for a verbose queue run more intelligible.
3229
323031. Added a use_postmaster feature to recipient callouts.
3231
323232. Added the $body_zerocount variable, containing the number of binary zero
3233 bytes in the message body.
3234
323533. The time of last modification of the "new" subdirectory is now used as the
3236 "mailbox time last read" when there is a quota error for a maildir
3237 delivery.
3238
323934. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3240
324135. Added +ignore_unknown as a special item in host lists.
3242
324336. Code for decoding IPv6 addresses in host lists is now included, even if
3244 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3245 address was recognized as an IP address, but was then not correctly decoded
3246 into binary, causing unexpected and incorrect effects when compared with
3247 another IP address.
3248
3249
3250Exim version 4.34
3251-----------------
3252
3253 1. Very minor rewording of debugging text in manualroute to say "list of
3254 hosts" instead of "hostlist".
3255
3256 2. If verify=header_syntax was set, and a header line with an unqualified
3257 address (no domain) and a large number of spaces between the end of the
3258 name and the colon was received, the reception process suffered a buffer
3259 overflow, and (when I tested it) crashed. This was caused by some obsolete
3260 code that should have been removed. The fix is to remove it!
3261
3262 3. When running in the test harness, delay a bit after writing a bounce
3263 message to get a bit more predictability in the log output.
3264
3265 4. Added a call to search_tidyup() just before forking a reception process. In
3266 theory, someone could use a lookup in the expansion of smtp_accept_max_
3267 per_host which, without the tidyup, could leave open a database connection.
3268
3269 5. Added the variables $recipient_data and $sender_data which get set from a
3270 lookup success in an ACL "recipients" or "senders" condition, or a router
3271 "senders" option, similar to $domain_data and $local_part_data.
3272
3273 6. Moved the writing of debug_print from before to after the "senders" test
3274 for routers.
3275
3276 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3277 problems for message scanning, either using a data ACL, or using
3278 local_scan() because the Received: header was not generated till after they
3279 were called (in order to set the time as the time of reception completion).
3280 I have revised the way this works. The header is now generated after the
3281 body is received, but before the ACL or local_scan() are called. After they
3282 are run, the timestamp in the header is updated.
3283
3284
3285Exim version 4.33
3286-----------------
3287
3288 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3289 before starting a queue runner without re-exec. This happened only when
3290 deliver_drop_privilege was set or when the Exim user was set to root. The
3291 effect of the bug was that timeouts during subsequent deliveries caused
3292 crashes instead of being properly handled. The handler is now left at its
3293 default (and expected) setting.
3294
3295 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3296 message, again when deliver_drop_privilege is set or Exim is run as root.
3297 The bug described in (1) was not present in this case, but the tidying up
3298 of the other signals was missing. I have made the two cases consistent.
3299
3300 3. The ignore_target_hosts setting on a manualroute router was being ignored
3301 for hosts that were looked up using the /MX notation.
3302
3303 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3304 in domain lists.
3305
3306 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3307 operated on the sender address. After changing the $sender_address to <>
3308 for the sender address verify, Exim was re-instated it as the original
3309 (before rewriting) address, but remembering that it had rewritten it, so it
3310 wasn't rewriting it again. This bug also had the effect of breaking the
3311 sender address verification caching when the sender address was rewritten.
3312
3313 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3314 This has been changed so that if the ip literal address matches
3315 ignore_target_hosts, the router declines.
3316
3317 7. Added expansion conditions match_domain, match_address, and match_local_
3318 part (NOT match_host).
3319
3320 8. The placeholder for the Received: header didn't have a length field set.
3321
3322 9. Added code to Exim itself and to exim_lock to test for a specific race
3323 condition that could lead to file corruption when using MBX delivery. The
3324 issue is with the lockfile that is created in /tmp. If this file is removed
3325 after a process has opened it but before that process has acquired a lock,
3326 there is the potential for a second process to recreate the file and also
3327 acquire a lock. This could lead to two Exim processes writing to the file
3328 at the same time. The added code performs the same test as UW imapd; it
3329 checks after acquiring the lock that its file descriptor still refers to
3330 the same named file.
3331
333210. The buffer for building added header lines was of fixed size, 8192 bytes.
3333 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3334 when Exim is built.
3335
333611. Added the smtp_active_hostname option. If used, this will typically be made
3337 to depend on the incoming interface address. Because $interface_address is
3338 not set up until the daemon has forked a reception process, error responses
3339 that can happen earlier (such as "too many connections") no longer contain
3340 a host name.
3341
334212. If an expansion in a condition on a "warn" statement fails because a lookup
3343 defers, the "warn" statement is abandoned, and the next ACL statement is
3344 processed. Previously this caused the whole ACL to be aborted.
3345
334613. Added the iplsearch lookup type.
3347
334814. Added ident_timeout as a log selector.
3349
335015. Added tls_certificate_verified as a log selector.
3351
335216. Added a global option tls_require_ciphers (compare the smtp transport
3353 option of the same name). This controls incoming TLS connections.
3354
335517. I finally figured out how to make tls_require_ciphers do a similar thing
3356 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3357 before starting the TLS session.
3358
335918. Tabs are now shown as \t in -bP output.
3360
336119. If the log selector return_path_on_delivery was set, Exim crashed when
3362 bouncing a message because it had too many Received: header lines.
3363
336420. If two routers both had headers_remove settings, and the first one included
3365 a superfluous trailing colon, the final name in the first list and the
3366 first name in the second list were incorrectly joined into one item (with a
3367 colon in the middle).
3368
3369
3370Exim version 4.32
3371-----------------
3372
3373 1. Added -C and -D options to the exinext utility, mainly to make it easier
3374 to include in the automated testing, but these could be helpful when
3375 multiple configurations are in use.
3376
3377 2. The exinext utility was not formatting the output nicely when there was
3378 an alternate port involved in the retry record key, nor when there was a
3379 message id as well (for retries that were specific to a specific message
3380 and a specific host). It was also confused by IPv6 addresses, because of
3381 the additional colons they contain. I have fixed the IPv4 problem, and
3382 patched it up to do a reasonable job for IPv6.
3383
3384 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3385 delivery, the log line now contains "pipelined" if PIPELINING was used.
3386
3387 4. An SMTP transport process used to panic and die if the bind() call to set
3388 an explicit outgoing interface failed. This has been changed; it is now
3389 treated in the same way as a connect() failure.
3390
3391 5. A reference to $sender_host_name in the part of a conditional expansion
3392 that was being skipped was still causing a DNS lookup. This no longer
3393 occurs.
3394
3395 6. The def: expansion condition was not recognizing references to header lines
3396 that used bh_ and bheader_.
3397
3398 7. Added the _cache feature to named lists.
3399
3400 8. The code for checking quota_filecount in the appendfile transport was
3401 allowing one more file than it should have been.
3402
3403 9. For compatibility with Sendmail, the command line option
3404
3405 -prval:sval
3406
3407 is equivalent to
3408
3409 -oMr rval -oMs sval
3410
3411 and sets the incoming protocol and host name (for trusted callers). The
3412 host name and its colon can be omitted when only the protocol is to be set.
3413 Note the Exim already has two private options, -pd and -ps, that refer to
3414 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3415 "s", but I don't think that's a major issue.
3416
341710. A number of refactoring changes to the code, none of which should affect
3418 Exim's behaviour:
3419
3420 (a) The number of logging options was getting close to filling up the
3421 32-bit word that was used as a bit map. I have split them into two classes:
3422 those that are passed in the argument to log_write(), and those that are
3423 only ever tested independently outside of that function. These are now in
3424 separate 32-bit words, so there is plenty of room for expansion again.
3425 There is no change in the user interface or the logging behaviour.
3426
3427 (b) When building, for example, log lines, the code previously used a
3428 macro that called string_cat() twice, in order to add two strings. This is
3429 not really sufficiently general. Furthermore, there was one instance where
3430 it was actually wrong because one of the argument was used twice, and in
3431 one call a function was used. (As it happened, calling the function twice
3432 did not affect the overall behaviour.) The macro has been replaced by a
3433 function that can join an arbitrary number of extra strings onto a growing
3434 string.
3435
3436 (c) The code for expansion conditions now uses a table and a binary chop
3437 instead of a serial search (which was left over from when there were very
3438 few conditions). Also, it now recognizes conditions like "pam" even when
3439 the relevant support is not compiled in: a suitably worded error message is
3440 given if an attempt is made to use such a condition.
3441
344211. Added ${time_interval:xxxxx}.
3443
344412. A bug was causing one of the ddress fields not to be passed back correctly
3445 from remote delivery subprocesses. The field in question was not being
3446 subsequently used, so this caused to problems in practice.
3447
344813. Added new log selectors queue_time and deliver_time.
3449
345014. Might have fixed a bug in maildirsizefile handling that threw up
3451 "unexpected character" debug warnings, and recalculated the data
3452 unnecessarily. In any case, I expanded the warning message to give more
3453 information.
3454
345515. Added the message "Restricted characters in address" to the statements in
3456 the default ACL that block characters like @ and % in local parts.
3457
345816. Change 71 for release 4.31 proved to be much less benign that I imagined.
3459 Three changes have been made:
3460
3461 (a) There was a serious bug; a negative response to MAIL caused the whole
3462 recipient domain to be cached as invalid, thereby blocking all messages
3463 to all local parts at the same domain, from all senders. This bug has
3464 been fixed. The domain is no longer cached after a negative response to
3465 MAIL if the sender used is not empty.
3466
3467 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3468 been restored.
3469
3470 (c) A new callout option, "use_sender" has been added for people who want
3471 the modified behaviour.
3472
3473
3474Exim version 4.31
3475-----------------
3476
3477 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3478 Larry Rosenman.
3479
3480 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3481 indeed breaks things for older releases.
3482
3483 3. Added additional logging to the case where there is a problem reading data
3484 from a filter that is running in a subprocess using a pipe, in order to
3485 try to track down a specific problem.
3486
3487 4. Testing facility fudge: when running in the test harness and attempting
3488 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3489 getting "No route to host". Convert this to a timeout.
3490
3491 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3492 warning.
3493
3494 6. Some OS don't have socklen_t but use size_t instead. This affects the
3495 fifth argument of getsockopt() amongst other things. This is now
3496 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3497 can be set for individual OS. I have set it for SunOS5, OSF1, and
3498 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3499 some earlier ones do not.
3500
3501 7. Change 4.30/15 was not doing the test caselessly.
3502
3503 8. The standard form for an IPv6 address literal was being rejected by address
3504 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3505 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3506 this, as well as the form without the "IPv6" on the front (but only when
3507 address literals are enabled, of course).
3508
3509 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3510
351110. Exim crashed if a message with an empty sender address specified by -f
3512 encountered a router with an errors_to setting. This could be provoked only
3513 by a command such as
3514
3515 exim -f "" ...
3516
3517 where an empty string was supplied; "<>" did not hit this bug.
3518
351911. Installed PCRE release 4.5.
3520
352112. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3522 remained set. It is now erased.
3523
352413. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3525 times from message ids (which are base 36 rather than the normal 62).
3526
352714. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3528 were being counted as actual protocol errors, and logged if the log
3529 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3530 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3531 and DATA following a set of rejected RCPTs do not count as protocol errors.
3532 In other words, Exim assumes they were pipelined, though this may not
3533 actually be the case. Of course, in all cases the client gets an
3534 appropriate error code.
3535
353615. If a lookup fails in an ACL condition, a message about the failure may
3537 be available; it is used if testing the ACL cannot continue, because most
3538 such messages specify what the cause of the deferral is. However, some
3539 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3540 that caused an old message to be retained and used if a later statement
3541 caused a defer, replacing the real cause of the deferral.
3542
354316. If an IP address had so many PTR records that the DNS lookup buffer
3544 was not large enough to hold them, Exim could crash while trying to process
3545 the truncated data. It now detects and logs this case.
3546
354717. Further to 4.21/58, another change has been made: if (and only if) the
3548 first line of a message (the first header line) ends with CRLF, a bare LF
3549 in a subsequent header line has a space inserted after it, so as not to
3550 terminate the header.
3551
355218. Refactoring: tidied an ugly bit of code in appendfile that copied data
3553 unnecessarily, used atoi() instead of strtol(), and didn't check the
3554 termination when getting file sizes from file names by regex.
3555
355619. Completely re-implemented the support for maildirsize files, in the light
3557 of a number of problems with the previous contributed implementation
3558 (4.30/29). In particular: