Bugzilla 673: merge f-protd support, courtesy of Mark Daniel Reidel <mr@df.eu>
[exim.git] / doc / doc-txt / ChangeLog
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23510047 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.545 2008/02/14 13:49:35 fanf2 Exp $
495ae4b0
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
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6Exim version 4.70
7-----------------
8
9NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
10 When building exim an external PCRE library is now needed -
11 PCRE is a system library on the majority of modern systems.
12 See entry on PCRE_LIBS in EDITME file.
13
deafd5b3
NM
14NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
15 conversation. Added nologin parameter to request.
16 Patch contributed by Kirill Miazine
17
089793a4
TF
18TF/01 Do not log submission mode rewrites if they do not change the address.
19
5f16ca82
TF
20TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
21
dae9d94e
NM
22NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
23 log files in place. Contributed by Roberto Lima
24
3f0da4d0
NM
25NM/04 Bugzilla 667: close socket used by dovecot authenticator
26
06864c44
TF
27TF/03 Bugzilla 615: When checking the local_parts router precondition
28 after a local_part_suffix or local_part_prefix option, Exim now
29 does not use the address's named list lookup cache, since this
30 contains cached lookups for the whole local part.
31
65a7d8c3
NM
32NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
33 Robert Millan. Documentation is in experimental-spec.txt
34
23510047 35TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 36
deafd5b3 37
47db1125
NM
38Exim version 4.69
39-----------------
40
4b3504d0
TK
41TK/01 Add preliminary DKIM support. Currently requires a forked version of
42 ALT-N's libdkim that I have put here:
43 http://duncanthrax.net/exim-experimental/
44
45 Note to Michael Haardt: I had to rename some vars in sieve.c. They
46 were called 'true' and it seems that C99 defines that as a reserved
47 keyword to be used with 'bool' variable types. That means you could
48 not include C99-style headers which use bools without triggering
49 build errors in sieve.c.
50
81ea09ca
NM
51NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
52 as mailq or other aliases. Changed the --help handling significantly
53 to do whats expected. exim_usage() emits usage/help information.
54
f13cddcb
SC
55SC/01 Added the -bylocaldomain option to eximstats.
56
8ad076b2
NM
57NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
58
a843aaa6
NM
59NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
60
47db1125
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61NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
62
63
eb4c0de6
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64Exim version 4.68
65-----------------
66
67PH/01 Another patch from the Sieve maintainer.
68
6a3bceb1
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69PH/02 When an IPv6 address is converted to a string for single-key lookup
70 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
71 dots are used instead of colons so that keys in lsearch files need not
72 contain colons. This was done some time before quoting was made available
73 in lsearch files. However, iplsearch files do require colons in IPv6 keys
74 (notated using the quote facility) so as to distinguish them from IPv4
75 keys. This meant that lookups for IP addresses in host lists did not work
76 for iplsearch lookups.
77
78 This has been fixed by arranging for IPv6 addresses to be expressed with
79 colons if the lookup type is iplsearch. This is not incompatible, because
80 previously such lookups could never work.
81
82 The situation is now rather anomolous, since one *can* have colons in
83 ordinary lsearch keys. However, making the change in all cases is
84 incompatible and would probably break a number of configurations.
85
2e30fa9d
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86TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
87 version.
88
0806a9c5
MH
89MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
90 conversion specification without a maximum field width, thereby enabling
91 a rogue spamd server to cause a buffer overflow. While nobody in their
92 right mind would setup Exim to query an untrusted spamd server, an
93 attacker that gains access to a server running spamd could potentially
94 exploit this vulnerability to run arbitrary code as the Exim user.
95
ae276964
TK
96TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
97 $primary_hostname instead of what libspf2 thinks the hosts name is.
98
0f2cbd1b
MH
99MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
100 a directory entry by the name of the lookup key. Previously, if a
101 symlink pointed to a non-existing file or a file in a directory that
102 Exim lacked permissions to read, a lookup for a key matching that
103 symlink would fail. Now it is enough that a matching directory entry
104 exists, symlink or not. (Bugzilla 503.)
105
2b85bce7
PH
106PH/03 The body_linecount and body_zerocount variables are now exported in the
107 local_scan API.
108
93655c46
PH
109PH/04 Added the $dnslist_matched variable.
110
6c512171
PH
111PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
112 This means they are set thereafter only if the connection becomes
113 encrypted.
114
115PH/06 Added the client_condition to authenticators so that some can be skipped
116 by clients under certain conditions.
117
aa6dc513
PH
118PH/07 The error message for a badly-placed control=no_multiline_responses left
119 "_responses" off the end of the name.
120
a96603a0
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121PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
122
8f240103
PH
123PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
124 (without spaces) instead of just copying the configuration text.
125
126PH/10 Added the /noupdate option to the ratelimit ACL condition.
127
d677b2f2
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128PH/11 Added $max_received_linelength.
129
d52120f2
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130PH/12 Added +ignore_defer and +include_defer to host lists.
131
64f2600a
PH
132PH/13 Installed PCRE version 7.2. This needed some changes because of the new
133 way in which PCRE > 7.0 is built.
134
8669f003
PH
135PH/14 Implemented queue_only_load_latch.
136
a4dc33a8
PH
137PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
138 MAIL command. The effect was to mangle the value on 64-bit systems.
139
d6a60c0f
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140PH/16 Another patch from the Sieve maintainer.
141
8f128379
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142PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
143
8932dffe
PH
144PH/18 If a system quota error occurred while trying to create the file for
145 a maildir delivery, the message "Mailbox is full" was not appended to the
146 bounce if the delivery eventually timed out. Change 4.67/27 below applied
147 only to a quota excession during the actual writing of the file.
d6a60c0f 148
ddea74fa 149PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
150 characters?) which causes problems in log lines. The DN values are now
151 passed through string_printing() before being added to log lines.
152
ddea74fa 153PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
154 and InterBase are left for another time.)
155
ddea74fa
PH
156PH/21 Added message_body_newlines option.
157
ce9f225c
PH
158PH/22 Guard against possible overflow in moan_check_errorcopy().
159
19897d52
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160PH/23 POSIX allows open() to be a macro; guard against that.
161
bc64a74d
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162PH/24 If the recipient of an error message contained an @ in the local part
163 (suitably quoted, of course), incorrect values were put in $domain and
164 $local_part during the evaluation of errors_copy.
165
eb4c0de6 166
b4ed4da0
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167Exim version 4.67
168-----------------
169
22ad45c9
MH
170MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
171 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
172 Jan Srzednicki.
173
b4ed4da0
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174PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
175 issue a MAIL command.
176
431b7361
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177PH/02 In an ACL statement such as
178
179 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
180
181 if a client was not listed at all, or was listed with a value other than
182 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
183 the condition was not true (as it should be), so access was not denied.
184 The bug was that the ! inversion was incorrectly passed on to the second
185 item. This has been fixed.
186
187PH/03 Added additional dnslists conditions == and =& which are different from
188 = and & when the dns lookup returns more than one IP address.
189
83da1223
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190PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
191 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
192
54fc8428
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193PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
194 FSYNC, which compiles an option called disable_fsync that allows for
195 bypassing fsync(). The documentation is heavily laced with warnings.
196
34c5e8dd
SC
197SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
198
bbe15da8
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199PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
200 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
201 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
202 including adding "make clean"; (3) Added -fPIC when compiling the test
203 dynamically loaded module, to get rid of a warning.
204
0e8a9471
MH
205MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
206 message fails, move_frozen_messages = true and ignore_bounce_errors_after
207 = 0s. The bug is otherwise harmless.
208
f0872424
PH
209PH/07 There was a bug in the dovecot authenticator such that the value of
210 $auth1 could be overwritten, and so not correctly preserved, after a
211 successful authentication. This usually meant that the value preserved by
212 the server_setid option was incorrect.
213
b01dd148
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214PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
215
6bf342e1
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216PH/09 Installed PCRE release 7.0.
217
273f34d0
PH
218PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
219 run for batched SMTP input. It is now run at the start of every message
220 in the batch. While fixing this I discovered that the process information
221 (output by running exiwhat) was not always getting set for -bs and -bS
222 input. This is fixed, and it now also says "batched" for BSMTP.
223
cf8b11a5
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224PH/11 Added control=no_pipelining.
225
41c7c167
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226PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
227 patch, slightly modified), and move the expansion of helo_data till after
228 the connection is made in the smtp transport (so it can use these
229 values).
230
9c57cbc0
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231PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
232
f3f065bb
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233PH/14 Added log_selector = +pid.
234
047bdd8c
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235PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
236
0ce9abe6
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237PH/16 Add ${if forany and ${if forall.
238
0e22dfd1
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239PH/17 Added dsn_from option to vary the From: line in DSNs.
240
4c590bd1
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241PH/18 Flush SMTP output before performing a callout, unless control =
242 no_callout_flush is set.
243
09945f1e
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244PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
245 was true (the default) a successful delivery failed to delete the retry
246 item, thus causing premature timeout of the address. The bug is now
247 fixed.
248
c51b8e75
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249PH/20 Added hosts_avoid_pipelining to the smtp transport.
250
e28326d8
PH
251PH/21 Long custom messages for fakedefer and fakereject are now split up
252 into multiline reponses in the same way that messages for "deny" and
253 other ACL rejections are.
254
75b1493f
PH
255PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
256 with slight modification.
257
7c5214ec
PH
258PH/23 Applied sieve patches from the maintainer "tracking the latest notify
259 draft, changing the syntax and factoring some duplicate code".
260
4311097e
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261PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
262 for deliveries of the second and subsequent messages over the same SMTP
263 connection.
264
29f89cad
PH
265PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
266 ${reduce, with only minor "tidies".
267
5e687460
SC
268SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
269
c3611384
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270PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
271 expansion side effects.
272
5a11a7b4
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273PH/27 When a message times out after an over-quota error from an Exim-imposed
274 quota, the bounce message says "mailbox is full". This message was not
275 being given when it was a system quota that was exceeded. It now should
276 be the same.
277
0e20aff9
MH
278MH/03 Made $recipients available in local_scan(). local_scan() already has
279 better access to the recipient list through recipients_list[], but
280 $recipients can be useful in postmaster-provided expansion strings.
281
ca86f471
PH
282PH/28 The $smtp_command and $smtp_command_argument variables were not correct
283 in the case of a MAIL command with additional options following the
284 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
285 were accidentally chopped off.
286
a14e5636
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287PH/29 SMTP synchronization checks are implemented when a command is read -
288 there is a check that no more input is waiting when there shouldn't be
289 any. However, for some commands, a delay in an ACL can mean that it is
290 some time before the response is written. In this time, more input might
291 arrive, invalidly. So now there are extra checks after an ACL has run for
292 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
293 pipelining has not been advertised.
294
ec95d1a6
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295PH/30 MH's patch to allow iscntrl() characters to be list separators.
296
42855d71
PH
297PH/31 Unlike :fail:, a custom message specified with :defer: was not being
298 returned in the SMTP response when smtp_return_error_details was false.
299 This has been fixed.
300
57c2c631
PH
301PH/32 Change the Dovecot authenticator to use read() and write() on the socket
302 instead of the C I/O that was originally supplied, because problems were
303 reported on Solaris.
304
58c01c94
PH
305PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
306 Exim which did not show up earlier: it was assuming that a call to
307 SSL_CTX_set_info_callback() might give an error value. In fact, there is
308 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
309 was a macro that became an assignment, so it seemed to work. This has
310 changed to a proper function call with a void return, hence the compile
311 error. Exim's code has been fixed.
312
dee5a20a
PH
313PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
314 cpus.
315
d2ee6114
PH
316PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
317
b2d5182b
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318PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
319
79749a79
PH
320PH/37 If a message is not accepted after it has had an id assigned (e.g.
321 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
322 "Completed" line in the log. When some messages of this type were
323 selected by exigrep, they were listed as "not completed". Others were
324 picked up by some special patterns. I have improved the selection
325 criteria to be more general.
79749a79 326
c456d9bb
PH
327PH/38 The host_find_failed option in the manualroute router can now be set
328 to "ignore", to completely ignore a host whose IP address cannot be
329 found. If all hosts are ignored, the behaviour is controlled by the new
330 host_all_ignored option.
331
cd9868ec
PH
332PH/39 In a list of hosts for manualroute, if one item (either because of multi-
333 homing or because of multiple MX records with /mx) generated more than
334 one IP address, and the following item turned out to be the local host,
335 all the secondary addresses of the first item were incorrectly removed
336 from the list, along with the local host and any following hosts (which
337 is what is supposed to happen).
338
ebeaf996
PH
339PH/40 When Exim receives a message, it writes the login name, uid, and gid of
340 whoever called Exim into the -H file. In the case of the daemon it was
341 behaving confusingly. When first started, it used values for whoever
342 started the daemon, but after a SIGHUP it used the Exim user (because it
343 calls itself on a restart). I have changed the code so that it now always
344 uses the Exim user.
345
2679d413
PH
346PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
347 message are rejected with the same error (e.g. no authentication or bad
348 sender address), and a DATA command is nevertheless sent (as can happen
349 with PIPELINING or a stupid MUA), the error message that was given to the
350 RCPT commands is included in the rejection of the DATA command. This is
351 intended to be helpful for MUAs that show only the final error to their
352 users.
353
84024b72
PH
354PH/42 Another patch from the Sieve maintainer.
355
8005d38e
SC
356SC/02 Eximstats - Differentiate between permanent and temporary rejects.
357 Eximstats - Fixed some broken HTML links and added missing column headers
358 (Jez Hancock).
359 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
360 columns for Rejects, Temp Rejects, Ham, and Spam rows.
361
3298c6c6
SC
362SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
363
a43a27c5
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364PH/43 Yet another patch from the Sieve maintainer.
365
58eb016e 366PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
367 the response to the final '.' that terminates a message, but only in the
368 case where the client has not sent further data following the '.'
369 (unfortunately, this is allowed). However, in many cases there won't be
370 any further data because there won't be any more messages to send. A call
371 to select() can be used: if it shows that the input is "ready", there is
372 either input waiting, or the socket has been closed. An attempt to read
373 the next input character can distinguish the two cases. Previously, Exim
58eb016e 374 would have sent an OK response which the client would never have see.
563b63fa
PH
375 This could lead to message repetition. This fix should cure that, at
376 least in a lot of common cases.
58eb016e 377
b43a74ea
PH
378PH/45 Do not advertise STARTTLS in response to HELP unless it would be
379 advertised in response to EHLO.
380
b4ed4da0 381
5dd1517f
PH
382Exim version 4.66
383-----------------
384
385PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
386 fixed by 4.65/MH/01 (is this a record?) are fixed:
387
388 (i) An empty string was always treated as zero by the numeric comparison
389 operators. This behaviour has been restored.
390
391 (ii) It is documented that the numeric comparison operators always treat
392 their arguments as decimal numbers. This was broken in that numbers
393 starting with 0 were being interpreted as octal.
394
395 While fixing these problems I realized that there was another issue that
396 hadn't been noticed. Values of message_size_limit (both the global option
397 and the transport option) were treated as octal if they started with 0.
398 The documentation was vague. These values are now always treated as
399 decimal, and I will make that clear in the documentation.
400
401
93cfa765
TK
402Exim version 4.65
403-----------------
404
405TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
406 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
407 versions. (#438)
408
d6066548
MH
409MH/01 Don't check that the operands of numeric comparison operators are
410 integers when their expansion is in "skipping" mode (fixes bug
411 introduced by 4.64-PH/07).
412
4362ff0d
PH
413PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
414 child addresses, Exim now panics and dies. Previously, because the count
415 is held in a short int, deliveries were likely to be lost. As such a
416 large number of recipients for a single message is ridiculous
417 (performance will be very, very poor), I have chosen to impose a limit
418 rather than extend the field.
419
93cfa765 420
944e9e9c
TF
421Exim version 4.64
422-----------------
aa41d2de 423
21d74bd9
TK
424TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
425 leftover -K file (the existence of which was triggered by #402).
426 While we were at it, introduced process PID as part of the -K
427 filename. This should rule out race conditions when creating
428 these files.
429
430TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
431 processing considerably. Previous code took too long for large mails,
432 triggering a timeout which in turn triggers #401.
433
434TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
435 in the DK code in transports.c. sendfile() is not really portable,
436 hence the _LINUX specificness.
944e9e9c
TF
437
438TF/01 In the add_headers option to the mail command in an Exim filter,
439 there was a bug that Exim would claim a syntax error in any
440 header after the first one which had an odd number of characters
441 in the field name.
442
2b1c6e3a
PH
443PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
444 callout verification, Exim cached a "reject" for the entire domain. This
445 is correct for most verifications, but it is not correct for a recipient
446 verification with use_sender or use_postmaster set, because in that case
447 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
448 case of MAIL FROM:<> rejection from other early rejections (e.g.
449 rejection of HELO). When verifying a recipient using a non-null MAIL
450 address, the cache is ignored if it shows MAIL FROM:<> rejection.
451 Whatever the result of the callout, the value of the domain cache is
452 left unchanged (for any other kind of callout, getting as far as trying
453 RCPT means that the domain itself is ok).
454
1f872c80
PH
455PH/02 Tidied a number of unused variable and signed/unsigned warnings that
456 gcc 4.1.1 threw up.
457
458PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
459 manifest itself as EPIPE rather than ECONNECT. When tidying away a
460 session, the daemon ignores ECONNECT errors and logs others; it now
461 ignores EPIPE as well.
462
d203e649
PH
463PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
464 (quoted-printable decoding).
465
cc2ed8f7 466PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 467 later the small subsequent patch to fix an introduced bug.
f951fd57 468
ddfcd446
PH
469PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
470
d45b1de8
PH
471PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
472
473PH/08 An error is now given if message_size_limit is specified negative.
474
38a0a95f 475PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 476 to be given (somewhat) arbitrary names.
38a0a95f 477
a2405d83
JJ
478JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
479 in 4.64-PH/09.
480
481JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
482 miscellaneous code fixes
483
6ea85e9a
PH
484PH/10 Added the log_reject_target ACL modifier to specify where to log
485 rejections.
486
26da7e20
PH
487PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
488 hostname. This is wrong, because it relates to the incoming message (and
489 probably the interface on which it is arriving) and not to the outgoing
490 callout (which could be using a different interface). This has been
491 changed to use the value of the helo_data option from the smtp transport
492 instead - this is what is used when a message is actually being sent. If
493 there is no remote transport (possible with a router that sets up host
494 addresses), $smtp_active_hostname is used.
6ea85e9a 495
14aa5a05 496PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 497 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
498 (a) The code assumed that strncpy() returns a negative number on buffer
499 overflow, which isn't the case. Replaced with Exim's string_format()
500 function.
501 (b) There were several signed/unsigned issues. I just did the minimum
502 hacking in of casts. There is scope for a larger refactoring.
503 (c) The code used strcasecmp() which is not a standard C function.
504 Replaced with Exim's strcmpic() function.
505 (d) The code set only $1; it now sets $auth1 as well.
506 (e) A simple test gave the error "authentication client didn't specify
507 service in request". It would seem that Dovecot has changed its
508 interface. Fortunately there's a specification; I followed it and
509 changed what the client sends and it appears to be working now.
510
ff75a1f7
PH
511PH/13 Added $message_headers_raw to provide the headers without RFC 2047
512 decoding.
513
e6f6568e
PH
514PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
515 address A is aliased to B and C, where B exists and C does not. Without
516 -v the output is "A verified" because verification stops after a
517 successful redirection if more than one address is generated. However,
518 with -v the child addresses are also verified. Exim was outputting "A
519 failed to verify" and then showing the successful verification for C,
520 with its parentage. It now outputs "B failed to verify", showing B's
521 parentage before showing the successful verification of C.
522
d6f6e0dc
PH
523PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
524 look up a TXT record in a specific list after matching in a combined
525 list.
526
322050c2
PH
527PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
528 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
529 they consult the DNS. I had assumed they would set it the way they
530 wanted; and indeed my experiments on Linux seem to show that in some
531 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
532 To be on the safe side, however, I have now made the interface to
533 host_find_byname() similar to host_find_bydns(), with an argument
534 containing the DNS resolver options. The host_find_byname() function now
535 sets these options at its start, just as host_find_bydns() does. The smtp
536 transport options dns_qualify_single and dns_search_parents are passed to
537 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
538 of host_find_byname() use the default settings of RES_DEFNAMES
539 (qualify_single) but not RES_DNSRCH (search_parents).
540
08955dd3
PH
541PH/17 Applied (a modified version of) Nico Erfurth's patch to make
542 spool_read_header() do less string testing, by means of a preliminary
543 switch on the second character of optional "-foo" lines. (This is
544 overdue, caused by the large number of possibilities that now exist.
545 Originally there were few.) While I was there, I also converted the
546 str(n)cmp tests so they don't re-test the leading "-" and the first
547 character, in the hope this might squeeze out yet more improvement.
548
1eccaa59
PH
549PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
550 flag allowing group syntax was set by the header_syntax check but not
551 turned off, possible causing trouble later; (2) The flag was not being
552 set at all for the header_verify test, causing "group"-style headers to
553 be rejected. I have now set it in this case, and also caused header_
554 verify to ignore an empty address taken from a group. While doing this, I
555 came across some other cases where the code for allowing group syntax
556 while scanning a header line wasn't quite right (mostly, not resetting
557 the flag correctly in the right place). These bugs could have caused
558 trouble for malformed header lines. I hope it is now all correct.
559
602e59e5
PH
560PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
561 with the "reply" argument non-NULL. The code, however (which originally
562 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
563 but it didn't always do it. This confused somebody who was copying the
564 code for some other use. I have removed all the tests.
565
411ef850
PH
566PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
567 feature that was used to support insecure browsers during the U.S. crypto
568 embargo. It requires special client support, and Exim is probably the
569 only MTA that supported it -- and would never use it because real RSA is
570 always available. This code has been removed, because it had the bad
571 effect of slowing Exim down by computing (never used) parameters for the
572 RSA_EXPORT functionality.
573
7befa435
PH
574PH/21 On the advice of Timo Sirainen, added a check to the dovecot
575 authenticator to fail if there's a tab character in the incoming data
576 (there should never be unless someone is messing about, as it's supposed
577 to be base64-encoded). Also added, on Timo's advice, the "secured" option
578 if the connection is using TLS or if the remote IP is the same as the
579 local IP, and the "valid-client-cert option" if a client certificate has
580 been verified.
581
48da4259 582PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
583 authenticators. This can be used for authorization after authentication
584 succeeds. (In the case of plaintext, it servers for both authentication
585 and authorization.)
586
48da4259
PH
587PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
588 if any retry times were supplied.
589
d1d5595c
PH
590PH/24 Exim crashed if verify=helo was activated during an incoming -bs
591 connection, where there is no client IP address to check. In this
592 situation, the verify now always succeeds.
593
0ef732d9
PH
594PH/25 Applied John Jetmore's -Mset patch.
595
328895cc
PH
596PH/26 Added -bem to be like -Mset, but loading a message from a file.
597
fd700877
PH
598PH/27 In a string expansion for a processed (not raw) header when multiple
599 headers of the same name were present, leading whitespace was being
600 removed from all of them, but trailing whitespace was being removed only
601 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
602 before concatenation. Completely empty headers in a concatenation (as
603 before) are ignored.
fd700877 604
8dce1a6f
PH
605PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
606 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
607
17af4a17
PH
608PH/29 [Removed. This was a change that I later backed out, and forgot to
609 correct the ChangeLog entry (that I had efficiently created) before
610 committing the later change.]
f6c332bd
PH
611
612PH/30 Exim was sometimes attempting to deliver messages that had suffered
613 address errors (4xx response to RCPT) over the same connection as other
614 messages routed to the same hosts. Such deliveries are always "forced",
615 so retry times are not inspected. This resulted in far too many retries
616 for the affected addresses. The effect occurred only when there were more
617 hosts than the hosts_max_try setting in the smtp transport when it had
618 the 4xx errors. Those hosts that it had tried were not added to the list
619 of hosts for which the message was waiting, so if all were tried, there
620 was no problem. Two fixes have been applied:
621
622 (i) If there are any address or message errors in an SMTP delivery, none
623 of the hosts (tried or untried) are now added to the list of hosts
624 for which the message is waiting, so the message should not be a
625 candidate for sending over the same connection that was used for a
626 successful delivery of some other message. This seems entirely
627 reasonable: after all the message is NOT "waiting for some host".
628 This is so "obvious" that I'm not sure why it wasn't done
629 previously. Hope I haven't missed anything, but it can't do any
630 harm, as the worst effect is to miss an optimization.
631
632 (ii) If, despite (i), such a delivery is accidentally attempted, the
633 routing retry time is respected, so at least it doesn't keep
634 hammering the server.
635
c1114884
PH
636PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
637 in ${readsocket because some servers need this prod.
638
7a0743eb
PH
639PH/32 Added some extra debug output when updating a wait-xxx database.
640
0d85fa3f
PH
641PH/33 The hint "could be header name not terminated by colon", which has been
642 given for certain expansion errors for a long time, was not being given
643 for the ${if def:h_colon_omitted{... case.
644
1bf43b78
PH
645PH/34 The spec says: "With one important exception, whenever a domain list is
646 being scanned, $domain contains the subject domain." There was at least
647 one case where this was not true.
648
520de300
PH
649PH/35 The error "getsockname() failed: connection reset by peer" was being
650 written to the panic log as well as the main log, but it isn't really
651 panic-worthy as it just means the connection died rather early on. I have
652 removed the panic log writing for the ECONNRESET error when getsockname()
653 fails.
654
48c7f9e2
PH
655PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
656 runs only) independently of the message's sender address. This meant
657 that, if the 4xx error was in fact related to the sender, a different
658 message to the same recipient with a different sender could confuse
659 things. In particualar, this can happen when sending to a greylisting
660 server, but other circumstances could also provoke similar problems.
661 I have changed the default so that the retry time for these errors is now
662 based a combination of the sender and recipient addresses. This change
663 can be overridden by setting address_retry_include_sender=false in the
664 smtp transport.
665
99ea1c86
PH
666PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
667 remote server are returned as part of bounce messages. This was not
668 happening for LMTP over a pipe (the lmtp transport), but now it is the
669 same for both kinds of LMTP.
670
a2042e78
PH
671PH/38 Despite being documented as not happening, Exim was rewriting addresses
672 in header lines that were in fact CNAMEs. This is no longer the case.
673
4fbcfc2e
PH
674PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
675 and queue runs started by the daemon processed all messages. This has
676 been fixed so that -R and -S can now usefully be given with -q<time>.
677
aa41d2de
PH
678PH/40 Import PCRE release 6.7 (fixes some bugs).
679
af561417
PH
680PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
681
3cc66b45
PH
682PH/42 Give an error if -q is specified more than once.
683
194cc0e4
PH
684PH/43 Renamed the variables $interface_address and $interface_port as
685 $received_ip_address and $received_port, to make it clear that these
686 values apply to message reception, and not to the outgoing interface when
687 a message is delivered. (The old names remain recognized, of course.)
688
a401ddaa
PH
689PH/44 There was no timeout on the connect() call when using a Unix domain
690 socket in the ${readsocket expansion. There now is.
691
4e88a19f
PH
692PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
693 be meaningful with "accept".
694
d7d7b289
SC
695SC/01 Eximstats V1.43
696 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
697
698SC/02 Eximstats V1.44
699 Use a glob alias rather than an array ref in the generated
700 parser. This improves both readability and performance.
701
702SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
703 Collect SpamAssassin and rejection statistics.
704 Don't display local sender or destination tables unless
705 there is data to show.
706 Added average volumes into the top table text output.
707
708SC/04 Eximstats V1.46
709 Collect data on the number of addresses (recipients)
710 as well as the number of messages.
711
712SC/05 Eximstats V1.47
713 Added 'Message too big' to the list of mail rejection
714 reasons (thanks to Marco Gaiarin).
715
716SC/06 Eximstats V1.48
717 Mainlog lines which have GMT offsets and are too short to
718 have a flag are now skipped.
719
720SC/07 Eximstats V1.49 (Alain Williams)
721 Added the -emptyok flag.
722
723SC/08 Eximstats V1.50
724 Fixes for obtaining the IP address from reject messages.
725
0ea2a468
JJ
726JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
727 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
728 whitesspace changes from 4.64-PH/27
729
730JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
731 match 4.64-PH/13
732
733JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
734 are found, allow negative numbers in numeric criteria)
735
736JJ/06 exipick.20061117.2, added new $message_body_missing variable
737
738JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
739 to match changes made in 4.64-PH/43
740
8a10f5a4
PH
741PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
742
30e18802
PH
743PH/47 Put in an explicit test for a DNS lookup of an address record where the
744 "domain" is actually an IP address, and force a failure. This locks out
745 those revolvers/nameservers that support "A-for-A" lookups, in
746 contravention of the specifications.
747
55728a4f
PH
748PH/48 When a host name was looked up from an IP address, and the subsequent
749 forward lookup of the name timed out, the host name was left in
750 $sender_host_name, contrary to the specification.
d7d7b289 751
d7837193
PH
752PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
753 restricted to single-key lookups, Exim was not diagnosing an error if
754 * or *@ was used with a query-style lookup.
755
87054a31
PH
756PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
757
ea2c01d2
MH
758MH/01 local_scan ABI version incremented to 1.1. It should have been updated
759 long ago, but noone interested enough thought of it. Let's just say that
760 the "1.1" means that there are some new functions that weren't there at
761 some point in the past.
762
e4fa6968
PH
763PH/51 Error processing for expansion failure of helo_data from an smtp
764 transport during callout processing was broken.
765
56f5d9bd
PH
766PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
767 tested/used via the -bh/-bhc/-bs options.
768
922e1c28
PH
769PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
770 bug, fixed in subsequent PCRE releases).
771
21eb6e72
PH
772PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
773 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
774
a0540757
PH
775PH/55 Check for a ridiculously long file name in exim_dbmbuild.
776
944e9e9c 777
478be7b0
SC
778Exim version 4.63
779-----------------
780
781SC/01 Use a glob alias rather than an array ref in eximstats generated
782 parser. This improves both readability and performance.
783
784SC/02 Collect SpamAssassin and rejection statistics in eximstats.
785 Don't display local sender or destination tables in eximstats unless
786 there is data to show.
787 Added average volumes into the eximstats top table text output.
788
789SC/03 Collect data on the number of addresses (recipients) as well
790 as the number of messages in eximstats.
791
2b965a65
TF
792TF/01 Correct an error in the documentation for the redirect router. Exim
793 does (usually) call initgroups() when daemonizing.
478be7b0 794
45b91596
PH
795TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
796 with consistent privilege compared to when running as a daemon.
478be7b0 797
c59f5781
TF
798TF/03 Note in the spec that $authenticated_id is not set for local
799 submissions from trusted users.
800
90fc3069
TF
801TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
802 Thanks to Dean Brooks <dean@iglou.com> for the patch.
803
6083aca0
TF
804TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
805 by adding some example configuration directives to the default
806 configuration file. A little bit of work is required to uncomment the
807 directives and define how usernames and passwords are checked, but
808 there is now a framework to start from.
809
765b530f
PH
810PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
811 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
812 without this. I don't know how relevant this is to other LDAP libraries.
813
4e167a8c
PH
814PH/02 Add the verb name to the "unknown ACL verb" error.
815
4608d683
PH
816PH/03 Magnus Holmgren's patch for filter_prepend_home.
817
b8dc3e4a
PH
818PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
819
5418e93b
PH
820PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
821 directory not expanded when it should be if an expanded home directory
822 was set for the address (which is overridden by the transport).
823
b4a9bda2
PH
824PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
825 libradius.
826
45b91596
PH
827PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
828 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
829 because it is too late at that time, and has no effect.
830
5547e2c5
PH
831PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
832 security issue with \' (bugzilla #107). I could not use the
833 PQescapeStringConn() function, because it needs a PGconn value as one of
834 its arguments.
835
dbcef0ea
PH
836PH/08 When testing addresses using -bt, indicate those final addresses that
837 are duplicates that would not cause an additional delivery. At least one
838 person was confused, thinking that -bt output corresponded to deliveries.
839 (Suppressing duplicates isn't a good idea as you lose the information
840 about possibly different redirections that led to the duplicates.)
841
25257489
PH
842PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
843 systems where poll() doesn't work, in particular OS X.
844
c816d124
PH
845PH/10 Added more information to debugging output for retry time not reached.
846
a9ccd69a
PH
847PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
848 operations in malware.c.
849
75fa1910
PH
850PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
851 signatures.
852
a7d7aa58
PH
853PH/13 If write_rejectlog was set false when logging was sent to syslog with
854 syslog_duplication set false, log lines that would normally be written
855 both the the main log and to the reject log were not written to syslog at
856 all.
857
42119b09
PH
858PH/14 In the default configuration, change the use of "message" in ACL warn
859 statements to "add_header".
860
41609df5
PH
861PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
862 not followed by a command (e.g. "seen endif").
863
a5bd321b
PH
864PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
865 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
866 latter.
867
e85a7ad5 868PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
869 so that it is now:
870
e85a7ad5
PH
871 ${if or { \
872 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
873 { match{$h_precedence:}{(?i)bulk|list|junk} } \
874 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
875 }{no}{yes}}
876
e85a7ad5
PH
877 The Auto-Submitted: and various List- headers are standardised, whereas I
878 don't think Precedence: ever was.
5dff5817 879
d8fe1c03
PH
880PH/18 Refactored debugging code in route_finduser() to show more information,
881 in particular, the error code if getpwnam() issues one.
882
16282d2b
PH
883PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
884 This is apparently needed in addition to the PH/07 change above to avoid
885 any possible encoding problems.
886
35d40a98
PH
887PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
888 but not after initializing Perl.
889
034d99ab
PH
890PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
891 output them only if debugging. By default they are written stderr,
892 apparently, which is not desirable.
893
6ec97b1b
PH
894PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
895 queries.
896
e22ca4ac
JJ
897JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
898 --not options
899
900JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
901
33d73e3b
PH
902PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
903 authenticated or an ident call has been made. Suppress the default
904 values for $authenticated_id and $authenticated_sender (but permit -oMai
905 and -oMas) when testing with -bh.
906
9ecb03f3
PH
907PH/24 Re-jigged the order of the tests in the default configuration so that the
908 tests for valid domains and recipients precede the DNS black list and CSA
909 tests, on the grounds that those ones are more expensive.
910
084efe8d
PH
911PH/25 Exim was not testing for a space following SMTP commands such as EHLO
912 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
913 This bug exists in every version of Exim that I still have, right back to
914 0.12.
915
366fc9f0
PH
916PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
917 However, an attempt to turn on case-sensitivity in a regex key by
918 including (?-i) didn't work because the subject string was already
919 lowercased, and the effects were non-intuitive. It turns out that a
920 one-line patch can be used to allow (?-i) to work as expected.
921
c59f5781 922
c887c79e
TF
923Exim version 4.62
924-----------------
925
926TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
927 other effects) broke the use of negated acl sub-conditions.
928
1cce3af8
PH
929PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
930 patch).
931
afb3eaaf
PH
932PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
933 "Deny" causes Exim to reject the incoming connection with a 554 error.
934 Unfortunately, if there is a major crisis, such as a disk failure,
935 tcp-wrappers gives "deny", whereas what one would like would be some
936 kind of temporary error. A kludge has been added to help with this.
937 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
938 554 error is used if errno is still zero or contains ENOENT (which occurs
939 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
940 451 error is used.
941
e173618b
PH
942PH/03 Add -lutil to the default FreeBSD LIBS setting.
943
dd16e114
PH
944PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
945 errors. Otherwise a message that provokes a temporary error (when other
946 messages do not) can cause a whole host to time out.
947
f7fd3850
PH
948PH/05 Batch deliveries by appendfile and pipe transports did not work when the
949 addresses were routed directly to files or pipes from a redirect router.
950 File deliveries just didn't batch; pipe deliveries might have suffered
951 odd errors.
952
d87df92c
PH
953PH/06 A failure to get a lock for a hints database would erroneously always say
954 "Failed to get write lock", even when it was really a read lock.
955
7e9f683d
PH
956PH/07 The appendfile transport was creating MBX lock files with a fixed mode
957 of 0600. This has been changed to use the value of the lockfile_mode
958 option (which defaults to 0600).
959
bfad5236
PH
960PH/08 Applied small patch from the Sieve maintainer.
961
01c490df
PH
962PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
963 folder from quota calculations, a direct delivery into this folder messed
964 up the contents of the maildirsize file. This was because the regex was
965 used only to exclude .Trash (or whatever) when the size of the mailbox
966 was calculated. There was no check that a delivery was happening into an
967 excluded directory. This bug has been fixed by ignoring all quota
968 processing for deliveries into excluded directories.
969
d6629cdc
PH
970PH/10 Added the maildirfolder_create_regex option to appendfile.
971
1cce3af8 972
214e2000
PH
973Exim version 4.61
974-----------------
975
976PH/01 The code for finding all the local interface addresses on a FreeBSD
977 system running IPv6 was broken. This may well have applied to all BSD
978 systems, as well as to others that have similar system calls. The broken
979 code found IPv4 interfaces correctly, but gave incorrect values for the
980 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
981 that it would not match correctly against @[] and not recognize the IPv6
982 addresses as local.
983
f9daeae0
PH
984PH/02 The ipliteral router was not recognizing addresses of the form user@
985 [ipv6:....] because it didn't know about the "ipv6:" prefix.
986
7e66e54d
PH
987PH/03 Added disable_ipv6.
988
c8ea1597
PH
989PH/04 Changed $reply_address to use the raw form of the headers instead of the
990 decoded form, because it is most often used to construct To: headers
991 lines in autoreplies, and the decoded form may well be syntactically
992 invalid. However, $reply_address has leading white space removed, and all
993 newlines turned into spaces so that the autoreply transport does not
994 grumble.
995
911f6fde
PH
996PH/05 If group was specified without a user on a router, and no group or user
997 was specified on a transport, the group from the router was ignored.
998
47ca6d6c
PH
999PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1000 for visible compile-time settings that can be used to change these
1001 numbers, for those that want even more. Backwards compatibility with old
1002 spool files has been maintained. However, going back to a previous Exim
1003 release will lost any variables that are in spool files.
1004
ed0e9820
PH
1005PH/07 Two small changes when running in the test harness: increase delay when
1006 passing a TCP/IP connection to a new process, in case the original
1007 process has to generate a bounce, and remove special handling of
1008 127.0.0.2 (sic), which is no longer necessary.
1009
eff37e47
PH
1010PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1011 be the same on different OS.
1012
1921d2ea
PH
1013PH/09 Moved a debug statement in filter processing to avoid a race problem when
1014 testing.
1015
b3f69ca8
JJ
1016JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1017 whether --show-vars was specified or not
1018
1019JJ/02 exipick: Added support for new ACL variable spool format introduced
1020 in 4.61-PH/06
1021
424a1c63
PH
1022PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1023 syntactically invalid From: or Reply-to: line, and a filter used this to
1024 generate an autoreply, and therefore failed to obtain an address for the
1025 autoreply, Exim could try to deliver to a non-existent relative file
1026 name, causing unrelated and misleading errors. What now happens is that
1027 it logs this as a hard delivery error, but does not attempt to create a
1028 bounce message.
1029
7a100415
PH
1030PH/11 The exinext utility has a -C option for testing purposes, but although
1031 the given file was scanned by exinext itself; it wasn't being passed on
1032 when Exim was called.
1033
19b9dc85
PH
1034PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1035 an end-of-file indication when reading a command response.
1036
309bd837
PH
1037PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1038 compiled. In many other places in Exim, IPv6 addresses are always
1039 recognized, so I have changed this. It also means that IPv4 domain
1040 literals of the form [IPV4:n.n.n.n] are now always recognized.
1041
59e82a2a
PH
1042PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1043 used if the router is not running as root, for example, when verifying at
1044 ACL time, or when using -bh. The debugging output from this situation was
1045 non-existent - all you got was a failure to exec. I have made two
1046 changes:
1047
1048 (a) Failures to set uid/gid, the current directory, or a process leader
1049 in a subprocess such as that created by queryprogram now generate
1050 suitable debugging ouput when -d is set.
1051
1052 (b) The queryprogram router detects when it is not running as root,
1053 outputs suitable debugging information if -d is set, and then runs
1054 the subprocess without attempting to change uid/gid.
1055
9edc04ce
PH
1056PH/15 Minor change to Makefile for building test_host (undocumented testing
1057 feature).
1058
1349e1e5
PH
1059PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1060 additional section of a DNS packet that returns MX or SRV records.
1061 Instead, it always explicitly searches for A/AAAA records. This avoids
1062 major problems that occur when a DNS server includes only records of one
1063 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1064 fixed another bug: if SRV records were looked up and the corresponding
1065 address records were *not* found in the additional section, the port
1066 values from the SRV records were lost.
1067
ea49d0e1
PH
1068PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1069 using the correct key (the original address) when searching the retry
1070 rules in order to find which one to use for generating the retry hint.
1071
064a94c9
PH
1072PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1073 adding the default one. Similarly, if it contains a Reply-To: header, the
1074 errors_reply_to option, if set, is not used.
1075
727071f8
PH
1076PH/19 When calculating a retry time, Exim used to measure the "time since
1077 failure" by looking at the "first failed" field in the retry record. Now
1078 it does not use this if it is later than than the arrival time of the
1079 message. Instead it uses the arrival time. This makes for better
1080 behaviour in cases where some deliveries succeed, thus re-setting the
1081 "first failed" field. An example is a quota failure for a huge message
1082 when small messages continue to be delivered. Without this change, the
1083 "time since failure" will always be short, possible causing more frequent
1084 delivery attempts for the huge message than are intended.
dd16e114 1085 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1086
f78eb7c6
PH
1087PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1088 $1, $2, $3) because the numerical variables can be reset during some
1089 expansion items (e.g. "match"), thereby losing the authentication data.
1090
21c28500
PH
1091PH/21 Make -bV show the size of off_t variables so that the test suite can
1092 decide whether to run tests for quotas > 2G.
1093
1094PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1095 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1096 filecount value is greater than 2G or if a quota value is greater than 2G
1097 on a system where the size of off_t is not greater than 4, a panic error
1098 is given.
1099
1688f43b
PH
1100PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1101 never match. The debug and -bh output now contains an explicit error
1102 message indicating a malformed IPv4 address or mask.
1103
1104PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1105 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1106 PH/23 above applies.
1107
9675b384
PH
1108PH/25 Do not write to syslog when running in the test harness. The only
1109 occasion when this arises is a failure to open the main or panic logs
1110 (for which there is an explicit test).
1111
6a3f1455
PH
1112PH/26 Added the /no_tell option to "control=freeze".
1113
dac79d3e
PH
1114PH/27 If a host name lookup failed very early in a connection, for example, if
1115 the IP address matched host_lookup and the reverse lookup yielded a name
1116 that did not have a forward lookup, an error message of the form "no IP
1117 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1118 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1119
5977a0b3
PH
1120PH/28 An enabling patch from MH: add new function child_open_exim2() which
1121 allows the sender and the authenticated sender to be set when
1122 submitting a message from within Exim. Since child_open_exim() is
1123 documented for local_scan(), the new function should be too.
1124
c91535f3
PH
1125PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1126 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1127 results in an empty string is now treated as unset.
1128
0d46a8c8
PH
1129PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1130
278c6e6c
PH
1131PH/31 Added sender_verify_fail logging option.
1132
2cbb4081
PH
1133PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1134 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1135 tidied the source and removed it altogether.
1136
3eef829e
PH
1137PH/33 When a queue run was abandoned because the load average was too high, a
1138 log line was always written; now it is written only if the queue_run log
1139 selector is set. In addition, the log line for abandonment now contains
1140 information about the queue run such as the pid. This is always present
1141 in "start" and "stop" lines but was omitted from the "abandon" line.
1142
1ab95fa6
PH
1143PH/34 Omit spaces between a header name and the colon in the error message that
1144 is given when verify = headers_syntax fails (if there are lots of them,
1145 the message gets confusing).
1146
230205fc
PH
1147PH/35 Change the default for dns_check_names_pattern to allow slashes within
1148 names, as there are now some PTR records that contain slashes. This check
1149 is only to protect against broken name servers that fall over on strange
1150 characters, so the fact that it applies to all lookups doesn't matter.
1151
75e0e026
PH
1152PH/36 Now that the new test suite is complete, we can remove some of the
1153 special code in Exim that was needed for the old test suite. For example,
1154 sorting DNS records because real resolvers return them in an arbitrary
1155 order. The new test suite's fake resolver always returns records in the
1156 same order.
1157
1158PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1159 bounces) except when queue_only is set, to avoid logging races between
1160 the different processes.
1161
145396a6
PH
1162PH/38 Panic-die if .include specifies a non-absolute path.
1163
3cd34f13
PH
1164PH/39 A tweak to the "H" retry rule from its user.
1165
11121d3d
JJ
1166JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1167 a label. They prevented compilation on older perls.
1168
1169JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1170 a warning to be raised on newish perls.
1171
1172JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1173 on queue. Changes to match documented behaviour of showing count of
1174 messages matching specified criteria.
1175
8def5aaf
PH
1176PH/40 Changed the default ident timeout from 30s to 5s.
1177
929ba01c
PH
1178PH/41 Added support for the use of login_cap features, on those BSD systems
1179 that have them, for controlling the resources used by pipe deliveries.
1180
2632889e
PH
1181PH/42 The content-scanning code uses fopen() to create files in which to put
1182 message data. Previously it was not paying any attention to the mode of
1183 the files. Exim runs with umask(0) because the rest of the code creates
1184 files with open(), and sets the required mode explicitly. Thus, these
1185 files were ending up world-writeable. This was not a big issue, because,
1186 being within the spool directory, they were not world-accessible. I have
1187 created a function called modefopen, which takes an additional mode
1188 argument. It sets umask(777), creates the file, chmods it to the required
1189 mode, then resets the umask. All the relevant calls to fopen() in the
1190 content scanning code have been changed to use this function.
1191
944a9c55
PH
1192PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1193 to 24 hours. This avoids potential overflow problems when processing G
1194 and H retry rules. I suspect nobody ever tinkers with this value.
1195
4a23603b
PH
1196PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1197
4730f942
PH
1198PH/45 When the plaintext authenticator is running as a client, the server's
1199 challenges are checked to ensure they are valid base64 strings. By
1200 default, the authentication attempt is cancelled if an invalid string is
1201 received. Setting client_ignore_invalid_base64 true ignores these errors.
1202 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1203 they are received. Thus, the responses can be made to depend on the
1204 challenges. If an invalid string is ignored, an empty string is placed in
1205 the variable.
1206
30dba1e6
PH
1207PH/46 Messages that are created by the autoreply transport now contains a
1208 References: header, in accordance with RFCs 2822 and 3834.
1209
382afc6b
PH
1210PH/47 Added authenticated_sender_force to the smtp transport.
1211
a86229cf
PH
1212PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1213
50c99ba6
PH
1214PH/49 Installed latest patch from the Sieve maintainer.
1215
d35e429d
PH
1216PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1217 was also set, the appendfile transport was unnecessarily scanning a
1218 directory of message files (e.g. for maildir delivery) to find the count
1219 of files (along with the size), even though it did not need this
1220 information. It now does the scan only if it needs to find either the
1221 size of the count of files.
1222
f90d018c
PH
1223PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1224
75def545
PH
1225PH/52 Two bugs concerned with error handling when the smtp transport is
1226 used in LMTP mode:
1227
1228 (i) Exim was not creating retry information for temporary errors given
1229 for individual recipients after the DATA command when the smtp transport
1230 was used in LMTP mode. This meant that they could be retried too
1231 frequently, and not timed out correctly.
1232
1233 (ii) Exim was setting the flag that allows error details to be returned
1234 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1235 recipients that were returned after the DATA command.
1236
1237PH/53 This is related to PH/52, but is more general: for any failing address,
1238 when detailed error information was permitted to be returned to the
1239 sender, but the error was temporary, then after the final timeout, only
1240 "retry timeout exceeded" was returned. Now it returns the full error as
1241 well as "retry timeout exceeded".
1242
c46782ef
PH
1243PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1244 do this, and (what is worse) MTAs that accept it.
1245
71fafd95
PH
1246PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1247 will now be deprecated.
1248
2c5db4fd
PH
1249PH/56 New os.c-cygwin from the Cygwin maintainer.
1250
9cf6b11a
JJ
1251JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1252 formats (previously only available in exim formats via -bpr, -bpru,
1253 and -bpra. Now also available in native and exiqgrep formats)
1254
1255JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1256 with very large, slow to parse queues
1257
1258JJ/08 exipick: added ! as generic prefix to negate any criteria format
1259
1260JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1261
898d150f
PH
1262PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1263 responses to authentication challenges, though it was showing the
1264 challenges; (ii) I've removed the CR characters from the debug output for
1265 SMTP output lines.
1266
46218253
PH
1267PH/58 Allow for the insertion of a newline as well as a space when a string
1268 is turned into more than one encoded-word during RFC 2047 encoding. The
1269 Sieve code now uses this.
1270
e97957bc
PH
1271PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1272 data_4xx, lost_connection, tls_required.
1273
81e509d7
PH
1274PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1275 message was being sent as an SMTP response.
1276
3d240ff7
PH
1277PH/61 Add -l and -k options to exicyclog.
1278
b37c4101
PH
1279PH/62 When verifying, if an address was redirected to one new address, so that
1280 verification continued, and the new address failed or deferred after
1281 having set something in $address_data, the value of $address_data was not
1282 passed back to the ACL. This was different to the case when no
1283 redirection occurred. The value is now passed back in both cases.
1284
79378e0f
PH
1285PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1286 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1287 use login_cap.h, so on its own it isn't the distinguishing feature. The
1288 new name refers directly to the setclassresources() function.
1289
e49c7bb4
PH
1290PH/65 Added configuration files for NetBSD3.
1291
d114ec46
PH
1292PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1293
f3d7df6c
PH
1294PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1295 is preferred over IPv4.
1296
715ab376
PH
1297PH/68 The bounce_return_message and bounce_return_body options were not being
1298 honoured for bounces generated during the reception of non-SMTP messages.
1299 In particular, this applied to messages rejected by the ACL. This bug has
1300 been fixed. However, if bounce_return_message is true and bounce_return_
1301 body is false, the headers that are returned for a non-SMTP message
1302 include only those that have been read before the error was detected.
1303 (In the case of an ACL rejection, they have all been read.)
1304
6b31b150
PH
1305PH/69 The HTML version of the specification is now built in a directory called
1306 spec_html instead of spec.html, because the latter looks like a path with
1307 a MIME-type, and this confuses some software.
1308
1309PH/70 Catch two compiler warnings in sieve.c.
1310
d515a917
PH
1311PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1312 function verify_get_ident() calls ip_connect() to connect a socket, but
1313 if the "connect()" function timed out, ip_connect() used to close the
1314 socket. However, verify_get_ident() also closes the socket later, and in
1315 between Exim writes to the log, which may get opened at this point. When
1316 the socket was closed in ip_connect(), the log could get the same file
1317 descriptor number as the socket. This naturally causes chaos. The fix is
1318 not to close the socket in ip_connect(); the socket should be closed by
1319 the function that creates it. There was only one place in the code where
1320 this was missing, in the iplookup router, which I don't think anybody now
1321 uses, but I've fixed it anyway.
1322
9b8fadde
PH
1323PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1324 well as to direct DNS lookups. Otherwise the handling of names in host
1325 lists is inconsistent and therefore confusing.
1326
214e2000 1327
5de37277
PH
1328Exim version 4.60
1329-----------------
1330
cc38ddbf
PH
1331PH/01 Two changes to the default runtime configuration:
1332
1333 (1) Move the checks for relay_from_hosts and authenticated clients from
1334 after to before the (commented out) DNS black list checks.
1335
1336 (2) Add control=submission to the relay_from_hosts and authenticated
1337 clients checks, on the grounds that messages accepted by these
1338 statements are most likely to be submissions.
5de37277 1339
72fdd6ae
PH
1340PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1341
1342 (1) Generate an error if the third argument for the ${prvs expansion is
1343 not a single digit.
1344
1345 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1346 string.
1347
1348 (3) Reset the variables that are obtained from the first argument of
1349 ${prvscheck and used in the second argument before leaving the code,
1350 because their memory is reclaimed, so using them afterwards may do
1351 silly things.
1352
1353 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1354 one (it's much easier than Tom thought :-).
1355
1356 (5) Because of (4), we can now allow for the use of $prvscheck_result
1357 inside the third argument.
cb9328de 1358
cb741023
PH
1359PH/03 For some reason, the default setting of PATH when running a command from
1360 a pipe transport was just "/usr/bin". I have changed it to
1361 "/bin:/usr/bin".
1362
f174f16e
PH
1363PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1364 anything to be listed in the output from -bV.
b2f5a032 1365
c25242d7
PH
1366PH/05 When a filter generated an autoreply, the entire To: header line was
1367 quoted in the delivery log line, like this:
1368
1369 => >A.N.Other <ano@some.domain> <original@ddress> ...
1370
1371 This has been changed so that it extracts the operative address. There
1372 may be more than one such address. If so, they are comma-separated, like
1373 this:
1374
1375 => >ano@some.domain,ona@other.domain <original@ddress> ...
1376
82c19f95
PH
1377PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1378 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1379 not being looked up in the rDNS to get a host name, Exim was showing the
1380 IP address twice in Received: lines, even though the IP addresses were
1381 identical. For example:
1382
1383 Received: from [1.2.3.4] (helo=[1.2.3.4])
1384
1385 However, if the real host name was known, it was omitting the HELO data
1386 if it matched the actual IP address. This has been tidied up so that it
1387 doesn't show the same IP address twice.
1388
d7ffbc12
PH
1389PH/07 When both +timestamp and +memory debugging was on, the value given by
1390 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1391 called by the debug printing, thereby overwriting the timestamp buffer.
1392 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1393
9f526266
PH
1394PH/08 When the original message was included in an autoreply transport, it
1395 always said "this is a copy of the message, including all the headers",
1396 even if body_only or headers_only was set. It now gives an appropriate
1397 message.
1398
87fcc8b9
PH
1399PH/09 Applied a patch from the Sieve maintainer which:
1400
1401 o fixes some comments
1402 o adds the (disabled) notify extension core
1403 o adds some debug output for the result of if/elsif tests
1404 o points to the current vacation draft in the documentation
1405 and documents the missing references header update
1406
1407 and most important:
1408
1409 o fixes a bug in processing the envelope test (when testing
1410 multiple envelope elements, the last element determinted the
1411 result)
1412
456682f5
PH
1413PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1414 Electronic Mail") by including:
1415
1416 Auto-submitted: auto-generated
1417
1418 in the messages that it generates (bounce messages and others, such as
1419 warnings). In the case of bounce messages for non-SMTP mesages, there was
1420 also a typo: it was using "Auto_submitted" (underscore instead of
1421 hyphen). Since every message generated by Exim is necessarily in response
1422 to another message, thes have all been changed to:
1423
1424 Auto-Submitted: auto-replied
1425
1426 in accordance with these statements in the RFC:
1427
1428 The auto-replied keyword:
1429
1430 - SHOULD be used on messages sent in direct response to another
1431 message by an automatic process,
1432
1433 - MUST NOT be used on manually-generated messages,
1434
1435 - MAY be used on Delivery Status Notifications (DSNs) and Message
1436 Disposition Notifications (MDNs),
1437
1438 - MUST NOT be used on messages generated by automatic or periodic
1439 processes, except for messages which are automatic responses to
1440 other messages.
1441
3e46c1aa
PH
1442PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1443 to the default Received: header definition.
456682f5 1444
49826d12
PH
1445PH/12 Added log selector acl_warn_skipped (default on).
1446
eba0c039
PH
1447PH/13 After a successful wildlsearch lookup, discard the values of numeric
1448 variables because (a) they are in the wrong storage pool and (b) even if
1449 they were copied, it wouldn't work properly because of the caching.
1450
a0d6ba8a
PH
1451PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1452 checking when decoding. Apparently there are clients that generate
1453 overlong encoded strings. Why am I not surprised?
1454
f0917727
PH
1455PH/15 If the first argument of "${if match_address" was not empty, but did not
1456 contain an "@" character, Exim crashed. Now it writes a panic log message
1457 and treats the condition as false.
1458
096fee00
PH
1459PH/16 In autoreply, treat an empty string for "once" the same as unset.
1460
024bd3c2
PH
1461PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1462 extension "envelope-auth". The code is finished and in agreement with
1463 other implementations, but there is no documentation so far and in fact,
1464 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1465 not changing the active code.
1466
1467 Print executed "if" and "elsif" statements when debugging is used. This
1468 helps a great deal to understand what a filter does.
1469
1470 Document more things not specified clearly in RFC3028. I had all this
1471 sorted out, when out of a sudden new issues came to my mind. Oops."
1472
df199fec
PH
1473PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1474 (Bugzilla #53).
1475
d27f1df3
PH
1476PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1477 canonical form (as documented). However, after a host name lookup from
1478 the IP address, check_host() was doing a simple string comparison with
1479 addresses acquired from the DNS when checking that the found name did
1480 have the original IP as one of its addresses. Since any found IPv6
1481 addresses are likely to be in abbreviated form, the comparison could
1482 fail. Luckily, there already exists a function for doing the comparison
1483 by converting both addresses to binary, so now that is used instead of
1484 the text comparison.
1485
96776534
PH
1486PH/20 There was another similar case to PH/19, when a complete host name was
1487 given in a host list; looking up its IP address could give an abbreviated
1488 form, whereas the current host's name might or might not be abbreviated.
1489 The same fix has been applied.
1490
5de37277 1491
9a799bc0
PH
1492Exim version 4.54
1493-----------------
1494
1495PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1496 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1497 It now does.
1498
99a4b039
PH
1499PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1500 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1501
1502PH/03 Typo: missing ".o" in src/pcre/Makefile.
1503
4b233853
PH
1504PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1505 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1506 Also, for "Auto-Submitted", treat anything other than "no" as
1507 non-personal, in accordance with RFC 3834. (Previously it treated
1508 anything starting "auto-" as non-personal.)
1509
8857ccfd
PH
1510TF/01 The control=submission/name=... option had a problem with syntax
1511 errors if the name included a slash character. The /name= option
1512 now slurps the rest of the string, so it can include any characters
1513 but it must come last in the list of options (after /sender_retain
1514 or /domain=).
1515
433a2980
PH
1516PH/05 Some modifications to the interface to the fake nameserver for the new
1517 testing suite.
1518
3e46c1aa 1519
9a799bc0 1520
e3a311ba
TK
1521Exim version 4.53
1522-----------------
1523
1524TK/01 Added the "success_on_redirect" address verification option. See
1525 NewStuff for rationale and an example.
1526
13b685f9
PH
1527PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1528
395ff96d
PH
1529PH/02 Patch to exigrep to allow it to work on syslog lines.
1530
5b68f6e4
PH
1531PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1532 fread() to skip over the body file's header line, because in Cygwin the
1533 header line is locked and is inaccessible.
1534
1ab52c69
PH
1535PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1536 co-exist for some time) to make it clear that it is the Exim ID that is
1537 referenced, not the Message-ID: header line.
1538
b07e6aa3
PH
1539PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1540 string_format() function, because snprintf() does not exist on all
1541 operating systems.
1542
254e032f
PH
1543PH/06 The use of forbid_filter_existstest now also locks out the use of the
1544 ${stat: expansion item.
1545
3af76a81
PH
1546PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1547 protocol synchronization error", to keep the pedants happy.
1548
2548ba04
PH
1549PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1550 well as for IRIX systems, when gcc is being used. See the host.c source
1551 file for comments.
1552
b6c6011d
PH
1553PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1554
cf39cf57
PH
1555PH/10 Named domain lists were not working if used in a queue_smtp_domains
1556 setting.
1557
f1513293
PH
1558PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1559 transport and to the smtp transport in LMTP mode.
1560
727549a4
PH
1561TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1562
af46795e
PH
1563PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1564 run a filter in a subprocess. This could lead to confusion in subsequent
1565 lookups in the parent process. There should also be a search_tidyup() at
1566 the end of the subprocess.
1567
d7b47fd0
PH
1568PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1569 only if the host matched helo_try_verify_hosts, which caused the
1570 verification to occur when the EHLO/HELO command was issued. The ACL just
1571 tested the remembered result. Now, if a previous verification attempt has
1572 not happened, "verify = helo" does it there and then.
1573
ee744174
JJ
1574JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1575
b582ab87
PH
1576TK/03 Fix log output including CR from clamd.
1577
41a13e0a
PH
1578PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1579 exist provoked a memory error which could cause a segfault.
1580
f625cc5a
PH
1581PH/15 Installed PCRE 6.2
1582
1583PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1584
21f7af35
PH
1585PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1586 of the problem. Specifically, suggested +O2 rather than +O1 for the
1587 HP-UX compiler.
1588
31480e42
PH
1589PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1590
2d280592
PH
1591PH/20 If a delivery was routed to a non-standard port by means of an SRV
1592 record, the port was not correctly logged when the outgoing_port log
1593 selector was set (it logged the transort's default port).
1594
7cd1141b
PH
1595PH/21 Added support for host-specific ports to manualroute, queryprogram,
1596 fallback_hosts, and "hosts" in the smtp transport.
1597
1598PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1599 host errors such as "Connection refused".
1600
750af86e
PH
1601PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1602 authentication with radiusclient 0.4.9:
1603
1604 - Error returned from rc_read_config was caught wrongly
1605 - Username/password not passed on to radius server due to wrong length.
1606
1607 The presumption is that some radiusclient API changes for 4.51/PH/17
1608 were not taken care of correctly. The code is still untested by me (my
1609 Linux distribution still has 0.3.2 of radiusclient), but it was
1610 contributed by a Radius user.
1611
1612PH/24 When doing a callout, the value of $domain wasn't set correctly when
1613 expanding the "port" option of the smtp transport.
1614
4304270b
TK
1615TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1616 while reading a MIME header. Thanks to Tom Hughes for a patch.
1617
750af86e
PH
1618PH/24 Include config.h inside local_scan.h so that configuration settings are
1619 available.
1620
64ffc24f
PH
1621PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1622 that in an ACL for RCPT (for example), you can examine exactly what was
1623 received.
1624
5dd9625b
PH
1625PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1626 commands, but it was not correctly comparing the address with the actual
1627 client host address. Thus, it would show the EHLO address in Received:
1628 header lines when this was not necessary.
1629
5591031b
PH
1630PH/27 Added the % operator to ${eval:}.
1631
ba18e66a
PH
1632PH/28 Exim tries to create and chdir to its spool directory when it starts;
1633 it should be ignoring failures (because with -C, for example, it has lost
1634 privilege). It wasn't ignoring creation failures other than "already
1635 exists".
1636
9cec981f
PH
1637PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1638 -bV or -d is used.
1639
aa2b5c79
PH
1640PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1641 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1642 too many continuations, the temporary file was not being removed, and the
1643 return code was incorrect.
aa2b5c79 1644
48a53b7f
PH
1645PH/31 Missing "BOOL" in function definition in filtertest.c.
1646
1c59d63b
PH
1647PH/32 Applied Sieve patches from the maintainer.
1648
671012da
TK
1649TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1650
1509d3a8
PH
1651PH/33 Added "verify = not_blind".
1652
1653PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1654 Local/Makefile (with some defaults set). These are used in built scripts
1655 such as exicyclog, but they have never been used in the exim_install
1656 script (though there are many overriding facilities there). I have
1657 arranged that the exim_install script now takes note of these two
1658 settings.
1659
1660PH/35 Installed configuration files for Dragonfly.
1661
2fe1a124
PH
1662PH/36 When a locally submitted message by a trusted user did not contain a
1663 From: header, and the sender address was obtained from -f or from an SMTP
1664 MAIL command, and the trusted user did not use -F to supply a sender
1665 name, $originator_name was incorrectly used when constructing a From:
1666 header. Furthermore, $originator_name was used for submission mode
1667 messages from external hosts without From: headers in a similar way,
1668 which is clearly wrong.
1669
8800895a
PH
1670PH/37 Added control=suppress_local_fixups.
1671
ccfdb010
PH
1672PH/38 When log_selector = +received_sender was set, and the addition of the
1673 sender made the log line's construction buffer exactly full, or one byte
1674 less than full, an overflow happened when the terminating "\n" was
1675 subsequently added.
1676
1130bfb0
PH
1677PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1678 when the result of a list match is failure because a DNS lookup failed.
1679
ebcb507f
PH
1680PH/40 RM_COMMAND is now used in the building process.
1681
c35e155c
PH
1682PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1683 the "build-* directories that it finds.
1684
95d1f782
PH
1685PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1686 address in a domain literal was a prefix of an interface address.
1687
fd6de02e
PH
1688PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1689 when verifying a sender address, unless rewrite_headers is false.
1690
58de37c5
PH
1691PH/44 Wrote a long comment about why errors_to addresses are verified as
1692 recipients, not senders.
1693
261cf466
TF
1694TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1695 the ratelimit ACL was added.
1696
3ee512ff
PH
1697PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1698
e08c430f
PH
1699PH/46 Added extra information about PostgreSQL errors to the error string.
1700
bef5a11f
PH
1701PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1702 avoiding the need to install special zones in a real server. This is
1703 backwards compatible; if it can't find the fake resolver, it drops back.
1704 Thus, both old and new test suites can be run.
1705
7546de58
TF
1706TF/02 Added util/ratelimit.pl
1707
e5d5a95f
TF
1708TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1709 clock is set back in time.
1710
2e88a017
TF
1711TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1712 Candler <B.Candler@pobox.com>.
1713
a5f65aa4
TF
1714TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1715 OK for addresses that are the result of redirections.
1716
e7726cbf
PH
1717PH/48 A number of further additions for the benefit of the new test suite,
1718 including a fake gethostbyname() that interfaces to the fake DNS resolver
1719 (see PH/47 above).
1720
a7fdad5b
TF
1721TF/06 The fix for widen_domains has also been applied to qualify_single and
1722 search_parents which are the other dnslookup options that can cause
1723 header rewrites.
1724
6af56900
PH
1725PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1726 type ("H").
1727
0925ede6
PH
1728PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1729
66afa403
TF
1730TF/07 Exim produced the error message "an SRV record indicated no SMTP
1731 service" if it encountered an MX record with an empty target hostname.
1732 The message is now "an MX or SRV record indicated no SMTP service".
1733
0154e85a
TF
1734TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1735 if the DNS of the sending site is misconfigured. This is quite a
1736 common situation. This change restores the behaviour of treating a
1737 helo verification defer as a failure.
1738
16f12c76
PH
1739PH/51 If self=fail was set on a router, the bounce message did not include the
1740 actual error message.
1741
bbe902f0 1742
e5a9dba6
PH
1743Exim version 4.52
1744-----------------
1745
1746TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1747
22c3b60b
PH
1748PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1749 command itself ended in error, the underlying message about the transport
1750 filter timeout was being overwritten with the pipe command error. Now the
1751 underlying error message should be appended to the second error message.
1752
06a9b4b5
PH
1753TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1754
c1ac6996
PH
1755PH/02 Reduce the amount of output that "make" produces by default. Full output
1756 can still be requested.
1757
9c7a242c
PH
1758PH/03 The warning log line about a condition test deferring for a "warn" verb
1759 was being output only once per connection, rather than after each
1760 occurrence (because it was using the same function as for successful
1761 "warn" verbs). This seems wrong, so I have changed it.
1762
87ba3f5f
PH
1763TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1764 it should not have, which might have caused a crash in the right
1765 circumstances, but probably never did.
1766
1767PH/04 Installed a modified version of Tony Finch's patch to make submission
1768 mode fix the return path as well as the Sender: header line, and to
1769 add a /name= option so that you can make the user's friendly name appear
1770 in the header line.
1771
29aba418
TF
1772TF/03 Added the control = fakedefer ACL modifier.
1773
fe0dab11
TF
1774TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1775 Mark Lowes for thorough testing.
870f6ba8 1776
11d337a4
TK
1777TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1778
1779TK/03 Merged latest SRS patch from Miles Wilton.
1780
415c8f3b
PH
1781PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1782 with the definition in sysexits.h (which is #included earlier).
1783 Fortunately, Exim does not actually use EX_OK. The code used to try to
1784 preserve the sysexits.h value, by assumimg that macro definitions were
1785 scanned for macro replacements. I have been disabused of this notion,
1786 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1787
958541e9
PH
1788PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1789 in the smtp transport. When a block could not be written in a single
1790 write() function, the timeout was being re-applied to each part-write.
1791 This seems wrong - if the receiver was accepting one byte at a time it
1792 would take for ever. The timeout is now adjusted when this happens. It
1793 doesn't have to be particularly precise.
1794
c206415f
TK
1795TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1796 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1797
2a4be8f9
PH
1798PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1799 without a domain if the check to <postmaster@domain> fails.
1800
1cba11c5
SC
1801SC/01 Eximstats: added -xls and the ability to specify output files
1802 (patch written by Frank Heydlauf).
1803
1804SC/02 Eximstats: use FileHandles for outputing results.
1805
1806SC/03 Eximstats: allow any combination of xls, txt, and html output.
1807
1808SC/04 Eximstats: fixed display of large numbers with -nvr option
1809
1810SC/05 Eximstats: fixed merging of reports with empty tables.
1811
1812SC/06 Eximstats: added the -include_original_destination flag
1813
1814SC/07 Eximstats: removed tabs and trailing whitespace.
1815
1005d00e
TK
1816TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1817
1818TK/06 MBOX spool code: Add real "From " MBOX separator line
1819 so the .eml file is really in mbox format (even though
1820 most programs do not really care). Patch from Alex Miller.
1821
1822TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1823 The latter is generated from $received_to and is only set if the
1824 message has one envelope recipient. SA can use these headers,
1825 obviously out-of-the-box. Patch from Alex Miller.
1826
9b4768fa
PH
1827PH/08 The ${def test on a variable was returning false if the variable's
1828 value was "0", contrary to what the specification has always said!
1829 The result should be true unless the variable is empty.
1830
1831PH/09 The syntax error of a character other than { following "${if
1832 def:variable_name" (after optional whitespace) was not being diagnosed.
1833 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1834 accidental colon was present, for example, could give incorrect results.
1835
0d7eb84a
PH
1836PH/10 Tidied the code in a number of places where the st_size field of a stat()
1837 result is used (not including appendfile, where other changes are about
1838 to be made).
1839
1840PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1841 This involved changing a lot of size variables from int to off_t. It
1842 should work with maildirs and everything.
1843
40727bee
TK
1844TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1845 spamd dying while we are connected to it.
1846
554d2369
TF
1847TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1848 <jgh@wizmail.org>
1849
1f922db1
PH
1850PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1851 function for BDB 4.3.
1852
ef213c3b
PH
1853PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1854
8ac170f3
PH
1855PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1856 the sources for PCRE have been re-arranged and more files are now
1857 involved.
1858
b1c749bb
PH
1859PH/15 The code I had for printing potentially long long variables in PH/11
1860 above was not the best (it lost precision). The length of off_t variables
1861 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1862 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1863 to be "long long int" or "long int". This is needed for the internal
1864 formatting function string_vformat().
b1c749bb 1865
4aac9b49
PH
1866PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1867 the configuration file to be ":syslog", then the script "guesses" where
1868 the logs files are, rather than using the compiled in default. In our
1869 case the guess is not the same as the compiled default, so the script
1870 suddenly stopped working when I started to use syslog. The patch checks
1871 to see if log_file_path is "". If so, it attempts to read it from exim
1872 with no configuration file to get the compiled in version, before it
1873 falls back to the previous guessing code."
1874
294520c8
TK
1875TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1876 implementing BATV in an Exim configuration. See NewStuff for the gory
1877 details.
1878
5bd022fe
PH
1879PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1880 Makefile that are specific to HP-UX.
1881
90e9ce59
PH
1882PH/18 If the "use_postmaster" option was set for a recipient callout together
1883 with the "random" option, the postmaster address was used as the MAIL
1884 FROM address for the random test, but not for the subsequent recipient
1885 test. It is now used for both.
1886
5ea81592
PH
1887PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1888 patch removes a few documentation additions to RFC 3028, because the
1889 latest draft now contains them. It adds the new en;ascii-case comparator
1890 and a new error check for 8bit text in MIME parts. Comparator and
1891 require names are now matched exactly. I enabled the subaddress
1892 extension, but it is not well tested yet (read: it works for me)."
1893
c6c2dc1d
PH
1894PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1895 rework some of the code of TK/09 above to avoid the hardwired use of
1896 "%lld" and "long long". Replaced the call to snprintf() with a call to
1897 string_vformat().
1898
fffffe4c
PH
1899PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1900 records point to non-existent hosts", "retry timeout exceeded", and
1901 "retry time not reached for any host after a long failure period".
ca02eafb 1902
9a26b6b2
PH
1903PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1904 experimental DomainKeys support:
1905
1906 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1907 (2) On an error such as an illegally used "control", the wrong name for
1908 the control was given.
1909
1910 These problems did NOT occur unless DomainKeys support was compiled.
1911
4aee0225
PH
1912PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1913
32d668a5
PH
1914PH/24 Added ${if match_ip condition.
1915
8187c3f3
PH
1916PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1917 databases so that it will be absolutely obvious if a crash occurs in the
1918 DB library. This is a regular occurrence (often caused by mis-matched
1919 db.h files).
1920
ff790e47 1921PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1922 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1923 picked up on a user's system that detects such things. There doesn't seem
1924 to be a gcc warning option for this - only an attribute that has to be
1925 put on the function's prototype. It seems that in Fedora Core 4 they have
1926 set this on a number of new functions. No doubt there will be more in due
1927 course.
ff790e47 1928
5417f6d1
PH
1929PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1930 specify a transport. However, if an address that was verified by such a
1931 router was the subject of a callout, Exim crashed because it tried to
1932 read the rcpt_include_affixes from the non-existent transport. Now it
1933 just assumes that the setting of that option is false. This bug was
1934 introduced by 4.51/PH/31.
1935
59cf8544
PH
1936PH/28 Changed -d+all to exclude +memory, because that information is very
1937 rarely of interest, but it makes the output a lot bigger. People tend to
1938 do -d+all out of habit.
1939
e7ad8a65
PH
1940PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1941 code in os-type was giving problems when libc.so lives in lib64, like on
1942 x86_64 Fedora Core.
1943
ade42478
PH
1944PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1945 aren't the modern standard, and it seems that some systems' include files
1946 don't always have them. Exim was already checking for some of the newer
1947 ones like T_AAAA, and defining it itself. I've added checks for all the
1948 record types that Exim uses.
1949
182ad5cf
PH
1950PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1951 not automatically generating a new one, as it is supposed to. This
1952 prevented TLS from working. If the file did exist, but contained invalid
1953 data, a new version was generated, as expected. It was only the case of a
1954 non-existent file that was broken.
1955
b0d9fc80
TK
1956TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1957 with a change in libdomainkeys > 0.64.
1958
1959TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1960 from DNS. If the selector record carries the flag, it now has
1961 precedence over the domain-wide flag.
1962
1963TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1964
47c7a64a
PH
1965PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1966 the use of a port name that isn't defined in /etc/services) occurred, the
1967 message was deferred as in a normal delivery, and thus remained on the
1968 spool, instead of being failed because of the mua_wrapper setting. This
1969 is now fixed, and I tidied up some of the mua_wrapper messages at the
1970 same time.
1971
a388bce4
SC
1972SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1973 the messages in a hash of arrays rather than using individual hashes.
1974 This is a bit cleaner and results in dramatic memory savings, albeit
1975 at a slight CPU cost.
1976
1977SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1978 as requested by Marc Sherman.
1979
1980SC/10 Eximstats: added histograms for user specified patterns as requested
1981 by Marc Sherman.
1982
0793e4ed
SC
1983SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1984
c58b88df
PH
1985PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1986 fopen() in the content-scanning modules that did not already have it.
1987
e7ad8a65 1988
7982096b
PH
1989Exim version 4.51
1990-----------------
1991
1a46a8c5
PH
1992TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1993 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1994
2f079f46 1995TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1996
1997TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1998
1999PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2000 to test Sieve filters that use "vacation".
2001
2002PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2003 that changes the way the GnuTLS parameters are stored in the cache file.
2004 The new format can be generated externally. For backward compatibility,
2005 if the data in the cache doesn't make sense, Exim assumes it has read an
2006 old-format file, and it generates new data and writes a new file. This
2007 means that you can't go back to an older release without removing the
2008 file.
2009
2010PH/03 A redirect router that has both "unseen" and "one_time" set does not
2011 work if there are any delivery delays because "one_time" forces the
2012 parent to be marked "delivered", so its unseen clone is never tried
2013 again. For this reason, Exim now forbids the simultaneous setting of
2014 these two options.
2015
2016PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2017 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2018 entry if you want to know the details. The fix, however, neglected to
2019 consider the case when local delivery batching is involved. The test for
2020 "previously delivered" was not happening when checking to see if an
2021 address could be batched with a previous (undelivered) one; under
2022 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2023 address.
1a46a8c5
PH
2024
2025PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2026 in its include files, and this causes problems building Exim.
2027
2028PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2029 header_syntax) but Exim was just ignoring anything given after a slash.
2030 In particular, this caused confusion with an attempt to use "verify =
2031 reverse_host_lookup/defer_ok". An error is now given when options are
2032 supplied for verify items that do not have them. (Maybe reverse_host_
2033 lookup should have a defer_ok option, but that's a different point.)
2034
2035PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2036 defined by RFC 821) to 2048, because there were problems with some AUTH
2037 commands, and RFC 1869 says the size should be increased for extended
2038 SMTP commands that take arguments.
2039
2040PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2041 Finch).
2042
2043PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2044 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2045
49c2d5ea
PH
2046PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2047 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2048 whatever). Otherwise the password may appear in the log. Following change
2049 PH/42 below, there is no longer a chance of it appearing in a bounce
2050 message.
49c2d5ea 2051
bf759a8b
PH
2052PH/11 Installed exipick version 20050225.0 from John Jetmore.
2053
83364d30
PH
2054PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2055 of its addresses was ever tried. (Bugzilla bug #2.)
2056
7999bbd7
PH
2057PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2058 the result incorrectly in the debug output. (It correctly added a newline
2059 to what was transported.)
2060
7dbf77c9
PH
2061TF/01 Added $received_time.
2062
74e0617f
PH
2063PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2064 commented out examples of how to interface to a virus scanner and to
2065 SpamAssassin. Also added commented examples of av_scanner and
2066 spamd_address settings.
2067
2f079f46
PH
2068PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2069 and controls are allowed in which ACLs. There were a couple of minor
2070 errors. Some of the entries in the conditions table (which is a table of
2071 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2072 negation of where the condition IS allowed.
2073
8c841523
PH
2074PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2075
7766a4f0
PH
2076PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2077 header file does not have a version number, so I've had to invent a new
2078 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2079 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2080 radiusclient), but it was contributed by a Radius user.
2081
8b417f2c
PH
2082PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2083 files or directories, for OpenSSL.
2084
901f42cb
PH
2085PH/19 When an Exim process that is running as root has to create an Exim log
2086 file, it does so in a subprocess that runs as exim:exim so as to get the
2087 ownership right at creation (otherwise, other Exim processes might see
2088 the file with the wrong ownership). There was no test for failure of this
2089 fork() call, which would lead to the process getting stuck as it waited
2090 for a non-existent subprocess. Forks do occasionally fail when resources
2091 run out. I reviewed all the other calls to fork(); they all seem to check
2092 for failure.
2093
f9b9210e
PH
2094PH/20 When checking for unexpected SMTP input at connect time (before writing
2095 the banner), Exim was not dealing correctly with a non-positive return
2096 from the read() function. If the client had disconnected by this time,
2097 the result was a log entry for a synchronization error with an empty
2098 string after "input=" when read() returned zero. If read() returned -1
2099 (an event I could not check), uninitialized data bytes were printed.
2100 There were reports of junk text (parts of files, etc) appearing after
2101 "input=".
2102
54cdb463
PH
2103PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2104
cf00dad6
PH
2105PH/22 Added support for macro redefinition, and (re)definition in between
2106 driver and ACL definitions.
2107
acb1b346
PH
2108PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2109 forgetting to use the resulting value; it was using the unexpanded value.
2110
c5ddb310
PH
2111PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2112 hadn't been configured. The fix is from Juergen Kreileder, who
2113 understands it better than I do:
2114
2115 "Here's what I see happening with three configured cyrus_sasl
2116 authenticators configured (plain, login, cram-md5):
2117
2118 On startup auth_cyrus_sasl_init() gets called for each of these.
2119 This means three calls to sasl_listmech() without a specified mech_list.
2120 => SASL tests which mechs of all available mechs actually work
2121 => three warnings about OTP not working
2122 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2123
2124 With the patch, sasl_listmech() also gets called three times. But now
2125 SASL's mech_list option is set to the server_mech specified in the the
2126 authenticator. Or in other words, the answer from sasl_listmech()
2127 gets limited to just the mech you're testing for (which is different
2128 for each call.)
2129 => the return list contains just 'plain' or 'login', 'cram-md5' or
2130 nothing depending on the value of ob->server_mech.
2131
2132 I've just tested the patch: Authentication still works fine,
2133 unavailable mechs specified in the exim configuration are still
2134 caught, and the auth.log warnings about OTP are gone."
2135
31619da6
PH
2136PH/25 When debugging is enabled, the contents of the command line are added
2137 to the debugging output, even when log_selector=+arguments is not
2138 specified.
2139
bebaf0fc
PH
2140PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2141 answer is "GNU", and only if the return is "GNU/something" is the answer
2142 "Linux".
2143
475fe28a
PH
2144PH/27 $acl_verify_message is now set immediately after the failure of a
2145 verification in an ACL, and so is available in subsequent modifiers. In
2146 particular, the message can be preserved by coding like this:
2147
2148 warn !verify = sender
2149 set acl_m0 = $acl_verify_message
2150
2151 Previously, $acl_verify_message was set only while expanding "message"
2152 and "log_message" when a very denied access.
2153
7e8bec7a
PH
2154PH/28 Modified OS/os.c-Linux with
2155
2156 -#ifndef OS_LOAD_AVERAGE
2157 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2158
2159 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2160 nomenclature these days.)
2161
e4a89c47
PH
2162PH/29 Installed patch from the Sieve maintainer that adds the options
2163 sieve_useraddress and sieve_subaddress to the redirect router.
2164
5ca2a9a1
PH
2165PH/30 In these circumstances:
2166 . Two addresses routed to the same list of hosts;
2167 . First host does not offer TLS;
2168 . First host accepts first address;
2169 . First host gives temporary error to second address;
2170 . Second host offers TLS and a TLS session is established;
2171 . Second host accepts second address.
2172 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2173 and peerdn, if requested) that were in fact used only for the second
2174 address.
7e8bec7a 2175
c688b954
PH
2176PH/31 When doing a callout as part of verifying an address, Exim was not paying
2177 attention to any local part prefix or suffix that was matched by the
2178 router that accepted the address. It now behaves in the same way as it
2179 does for delivery: the affixes are removed from the local part unless
2180 rcpt_include_affixes is set on the transport.
2181
fed77020
PH
2182PH/32 Add the sender address, as F=<...>, to the log line when logging a
2183 timeout during the DATA phase of an incoming message.
2184
7fe1560f
PH
2185PH/33 Sieve envelope tests were broken for match types other than :is. I have
2186 applied a patch sanctioned by the Sieve maintainer.
c688b954 2187
ebb6e6d5
PH
2188PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2189 the uid or gid is negative. A case of a negative gid caused this to be
2190 noticed. The fix allows for either to be negative.
2191
9c4e8f60
PH
2192PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2193 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2194 overlooked.
2195
2196PH/36 The change PH/12 above was broken. Fixed it.
2197
d7174846
PH
2198PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2199 the grounds that routing the same address twice would always produce the
2200 same answer. This might have been true once, but it is certainly no
2201 longer true now. Routing a child address may depend on the previous
2202 routing that produced that child. Some complicated redirection strategies
2203 went wrong when messages had multiple recipients, and made Exim's
2204 behaviour dependent on the order in which the addresses were given.
2205
2206 I have moved the duplicate checking until after the routing is complete.
2207 Exim scans the addresses that are assigned to local and remote
2208 transports, and removes any duplicates. This means that more work will be
2209 done, as duplicates will always all be routed, but duplicates are
2210 presumably rare, so I don't expect this is of any significance.
2211
2212 For deliveries to pipes, files, and autoreplies, the duplicate checking
2213 still happens during the routing process, since they are not going to be
2214 routed further.
2215
cfe75fc3
PH
2216PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2217 It corrects a timeout issue with spamd. This is Ian's comment: "The
2218 background is that sometimes spamd either never reads data from a
2219 connection it has accepted, or it never writes response data. The exiscan
2220 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2221 blindly assumes that writes won't block so it may never time out."
2222
be22d70e
PH
2223PH/39 Allow G after quota size as well as K and M.
2224
0612b098
PH
2225PH/40 The value set for $authenticated_id in an authenticator may not contain
2226 binary zeroes or newlines because the value is written to log lines and
2227 to spool files. There was no check on this. Now the value is run through
2228 the string_printing() function so that such characters are converted to
2229 printable escape sequences.
2230
2e0c1448
PH
2231PH/41 $message_linecount is a new variable that contains the total number of
2232 lines in the message. Compare $body_linecount, which is the count for the
2233 body only.
2234
447d236c
PH
2235PH/42 Exim no longer gives details of delivery errors for specific addresses in
2236 bounce and delay warning messages, except in certain special cases, which
2237 are as follows:
2238
2239 (a) An SMTP error message from a remote host;
2240 (b) A message specified in a :fail: redirection;
2241 (c) A message specified in a "fail" command in a system filter;
2242 (d) A message specified in a FAIL return from the queryprogram router;
2243 (e) A message specified by the cannot_route_message router option.
2244
2245 In these cases only, Exim does include the error details in bounce and
2246 warning messages. There are also a few cases where bland messages such
2247 as "unrouteable address" or "local delivery error" are given.
2248
d20976dc
PH
2249PH/43 $value is now also set for the "else" part of a ${run expansion.
2250
f656d135
PH
2251PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2252 being worked on, but at least Exim now implements the latest version to
2253 play with."
2254
2e2a30b4
PH
2255PH/45 In a pipe transport, although a timeout while waiting for the pipe
2256 process to complete was treated as a delivery failure, a timeout while
2257 writing the message to the pipe was logged, but erroneously treated as a
2258 successful delivery. Such timeouts include transport filter timeouts. For
2259 consistency with the overall process timeout, these timeouts are now
2260 treated as errors, giving rise to delivery failures by default. However,
2261 there is now a new Boolean option for the pipe transport called
2262 timeout_defer, which, if set TRUE, converts the failures into defers for
2263 both kinds of timeout. A transport filter timeout is now identified in
2264 the log output.
2265
9176e9f0
PH
2266PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2267 systems where "make" and "gmake" are different, calling "gmake" at top
2268 level broke things. I've arranged for the value of $(MAKE) to be passed
2269 from the Makefile to this script so that it can call the same version of
2270 "make".
2271
7982096b 2272
bbe902f0
PH
2273A note about Exim versions 4.44 and 4.50
2274----------------------------------------
2275
2276Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2277changes of various kinds. As a consequence, a big documentation update was
2278needed. This delayed the release for rather longer than seemed good, especially
2279in the light of a couple of (minor) security issues. Therefore, the changes
2280that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2281release. So 4.44 and 4.50 are in effect two different branches that both start
2282from 4.43.
2283
2284I have left the 4.50 change log unchanged; it contains all the changes since
22854.43. The change log for 4.44 is below; many of its items are identical to
2286those for 4.50. This seems to be the most sensible way to preserve the
2287historical information.
2288
2289
f7b63901 2290Exim version 4.50
495ae4b0
PH
2291-----------------
2292
5fe762f6
PH
2293 1. Minor wording change to the doc/README.SIEVE file.
2294
139059f6 2295 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2296 computation of the current number of files was incorrect.
495ae4b0 2297
7086e875
PH
2298 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2299 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2300 place.
2301
35af9f61
PH
2302 4. Give more explanation in the error message when the command for a transport
2303 filter fails to execute.
2304
b668c215
PH
2305 5. There are several places where Exim runs a non-Exim command in a
2306 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2307 was being done only for the command run by the queryprogram router. It is
2308 now done for all such subprocesses. The other cases are: ${run, transport
2309 filters, and the commands run by the lmtp and pipe transports.
2310
a494b1e1
PH
2311 6. Added CONFIGURE_GROUP build-time option.
2312
2313 7. Some older OS have a limit of 256 on the maximum number of file
2314 descriptors. Exim was using setrlimit() to set 1000 as a large value
2315 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2316 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2317
c5fcb476
PH
2318 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2319 was an oversight, and furthermore, ever since the addition of extra
2320 controls (e.g. 4.43/32), the checks on when to allow different forms of
2321 "control" were broken. There should now be diagnostics for all cases when a
2322 control that does not make sense is encountered.
2323
69358f02
PH
2324 9. Added the /retain_sender option to "control=submission".
2325
5be20824
PH
232610. $recipients is now available in the predata ACL (oversight).
2327
eb2c0248
PH
232811. Tidy the search cache before the fork to do a delivery from a message
2329 received from the command line. Otherwise the child will trigger a lookup
2330 failure and thereby defer the delivery if it tries to use (for example) a
2331 cached ldap connection that the parent has called unbind on.
2332
2a3eea10
PH
233312. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2334 of $address_data from the recipient verification was clobbered by the
2335 sender verification.
2336
233713. The value of address_data from a sender verification is now available in
2338 $sender_address_data in subsequent conditions in the ACL statement.
2339
23c7ff99
PH
234014. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2341
4deaf07d
PH
234215. Added a new option "connect=<time>" to callout options, to set a different
2343 connection timeout.
2344
926e1192
PH
234516. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2346 was its contents. (It was OK if the option was not defined at all.)
2347
650edc6f
PH
234817. A "Completed" log line is now written for messages that are removed from
2349 the spool by the -Mrm option.
2350
2c7db3f5
PH
235118. New variables $sender_verify_failure and $recipient_verify_failure contain
2352 information about exactly what failed.
2353
3d235903
PH
235419. Added -dd to debug only the daemon process.
2355
7c7ad977
PH
235620. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2357 handles timeouts, both on the server side and network timeouts. Renamed the
2358 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2359
981756db
PH
236021. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2361 It is now set to "smtps".
2362
d4eb88df
PH
236322. $host_address is now set to the target address during the checking of
2364 ignore_target_hosts.
2365
236623. When checking ignore_target_hosts for an ipliteral router, no host name was
2367 being passed; this would have caused $sender_host_name to have been used if
2368 matching the list had actually called for a host name (not very likely,
2369 since this list is usually IP addresses). A host name is now passed as
2370 "[x.x.x.x]".
2371
7d468ab8
PH
237224. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2373 code that specifies a non-restarting handler (typically sigaction() in
2374 modern systems) in an attempt to fix a rare and obscure crash bug.
2375
237625. Narrowed the window for a race in the daemon that could cause it to ignore
2377 SIGCHLD signals. This is not a major problem, because they are used only to
2378 wake it up if nothing else does.
2379
62c0818f
PH
238026. A malformed maildirsize file could cause Exim to calculate negative values
2381 for the mailbox size or file count. Odd effects could occur as a result.
2382 The maildirsize information is now recalculated if the size or filecount
2383 end up negative.
2384
26034054
PH
238527. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2386 support for a long time. Removed HAVE_SYS_VFS_H.
2387
af66f652
PH
238828. Installed the latest version of exipick from John Jetmore.
2389
90af77f4
PH
239029. In an address list, if the pattern was not a regular expression, an empty
2391 subject address (from a bounce message) matched only if the pattern was an
2392 empty string. Non-empty patterns were not even tested. This was the wrong
2393 because it is perfectly reasonable to use an empty address as part of a
2394 database query. An empty address is now tested by patterns that are
2395 lookups. However, all the other forms of pattern expect the subject to
2396 contain a local part and a domain, and therefore, for them, an empty
2397 address still always fails if the pattern is not itself empty.
2398
d8ef3577
PH
239930. Exim went into a mad DNS loop when attempting to do a callout where the
2400 host was specified on an smtp transport, and looking it up yielded more
2401 than one IP address.
2402
5cb8cbc6
PH
240331. Re-factored the code for checking spool and log partition space into a
2404 function that finds that data and another that does the check. The former
2405 is then used to implement four new variables: $spool_space, $log_space,
2406 $spool_inodes, and $log_inodes.
2407
14702f5b
PH
240832. The RFC2047 encoding function was originally intended for short strings
2409 such as real names; it was not keeping to the 75-character limit for
2410 encoded words that the RFC imposes. It now respects the limit, and
2411 generates multiple encoded words if necessary. To be on the safe side, I
2412 have increased the buffer size for the ${rfc2047: expansion operator from
2413 1024 to 2048 bytes.
2414
063b1e99
PH
241533. It is now permitted to omit both strings after an "if" condition; if the
2416 condition is true, the result is "true". As before, when the second string
2417 is omitted, a false condition yields an empty string. This makes it less
2418 cumbersome to write custom ACL and router conditions.
2419
652e1b65
PH
242034. Failure to deliver a bounce message always caused it to be frozen, even if
2421 there was an errors_to setting on the router. The errors_to setting is now
2422 respected.
2423
6f0c9a4f
PH
242435. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2425 canonical form (fully expanded) before being placed in
2426 $sender_host_address.
2427
33397d19
PH
242836. The table in the code that translates DNS record types into text (T_A to
2429 "A" for instance) was missing entries for NS and CNAME. It is just possible
2430 that this could have caused confusion if both these types were looked up
2431 for the same domain, because the text type is used as part of Exim's
2432 per-process caching. But the chance of anyone hitting this buglet seems
2433 very small.
2434
7bb56e1f
PH
243537. The dnsdb lookup has been extended in a number of ways.
2436
2437 (1) There is a new type, "zns", which walks up the domain tree until it
2438 finds some nameserver records. It should be used with care.
2439
ea3bc19b
PH
2440 (2) There is a new type, "mxh", which is like "mx" except that it returns
2441 just the host names, not the priorities.
2442
2443 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2444 looked up. The behaviour when one of the lookups defers can be
2445 controlled by a keyword.
7bb56e1f 2446
ea3bc19b 2447 (4) It is now possible to specify the separator character for use when
7bb56e1f 2448 multiple records are returned.
33397d19 2449
0bcb2a0e
PH
245038. The dnslists ACL condition has been extended: it is now possible to supply
2451 a list of IP addresses and/or domains to be looked up in a particular DNS
2452 domain.
2453
2ac0e484
PH
245439. Added log_selector=+queue_time_overall.
2455
4e1fde53
PH
245640. When running the queue in the test harness, wait just a tad after forking a
2457 delivery process, to get repeatability of debugging output.
2458
de365ded
PH
245941. Include certificate and key file names in error message when GnuTLS fails
2460 to set them up, because the GnuTLS error message doesn't include the name
2461 of the failing file when there is a problem reading it.
2462
f05da2e8
PH
246342. Allow both -bf and -bF in the same test run.
2464
d6453af2
PH
246543. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2466
f7b63901
PH
246744. The "Exiscan patch" is now merged into the mainline Exim source.
2468
246945. Sometimes the final signoff response after QUIT could fail to get
2470 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2471 < 0 before doing a fflush(). This bug looks as though it goes back to the
2472 introduction of TLS in release 3.20, but "sometimes" must have been rare
2473 because the tests only now provoked it.
2474
a444213a
PH
247546. Reset the locale to "C" after calling embedded Perl, in case it was changed
2476 (this can affect the format of dates).
2477
0ec020ea
PH
247847. exim_tidydb, when checking for the continued existence of a message for
2479 which it has found a message-specific retry record, was not finding
2480 messages that were in split spool directories. Consequently, it was
2481 deleting retry records that should have stayed in existence.
2482
b1206957
PH
248348. Steve fixed some bugs in eximstats.
2484
248549. The SPA authentication driver was not abandoning authentication and moving
2486 on to the next authenticator when an expansion was forced to fail,
2487 contradicting the general specification for all authenticators. Instead it
2488 was generating a temporary error. It now behaves as specified.
2489
26dd5a95
PH
249050. The default ordering of permitted cipher suites for GnuTLS was pessimal
2491 (the order specifies the preference for clients). The order is now AES256,
2492 AES128, 3DES, ARCFOUR128.
2493
343b2385
PH
249451. Small patch to Sieve code - explicitly set From: when generating an
2495 autoreply.
2496
1c5466b9
PH
249752. Exim crashed if a remote delivery caused a very long error message to be
2498 recorded - for instance if somebody sent an entire SpamAssassin report back
2499 as a large number of 550 error lines. This bug was coincidentally fixed by
2500 increasing the size of one of Exim's internal buffers (big_buffer) that
2501 happened as part of the Exiscan merge. However, to be on the safe side, I
2502 have made the code more robust (and fixed the comments that describe what
2503 is going on).
2504
55ee9ee3
PH
250553. Now that there can be additional text after "Completed" in log lines (if
2506 the queue_time_overall log selector is set), a one-byte patch to exigrep
2507 was needed to allow it to recognize "Completed" as not the last thing in
2508 the line.
2509
d38f8232
PH
251054. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2511 patch that reportedly fixes this has been added. I am not expert enough to
2512 create a test for it. This is what the patch creator wrote:
2513
2514 "I found a little strange behaviour of ldap code when working with
2515 Windows 2003 AD Domain, where users was placed in more than one
2516 Organization Units. When I tried to give exim partial DN, the exit code
2517 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2518 But simultaneously result of request was absolutely normal ldap result,
2519 so I produce this patch..."
2520
3295e65b
PH
2521 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2522 REFERENCE, so I have modified the code to exclude the patch when that macro
2523 is not defined.
2524
7102e136
PH
252555. Some experimental protocols are using DNS PTR records for new purposes. The
2526 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2527 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2528 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2529 CAN-2005-0021
7102e136 2530
3ca0ba97
PH
253156. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2532
c2bcbe20
PH
253357. Double the size of the debug message buffer (to 2048) so that more of very
2534 long debug lines gets shown.
2535
18ce445d
PH
253658. The exicyclog utility now does better if the number of log files to keep
2537 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2538
1f5b4c3d
PH
253959. Two changes related to the smtp_active_hostname option:
2540
2541 (1) $smtp_active_hostname is now available as a variable.
2542 (2) The default for smtp_banner uses $smtp_active_hostname instead
2543 of $primary_hostname.
2544
b975ba52
PH
254560. The host_aton() function is supposed to be passed a string that is known
2546 to be a valid IP address. However, in the case of IPv6 addresses, it was
2547 not checking this. This is a hostage to fortune. Exim now panics and dies
2548 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2549 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2550 components; fortuitously, this particular loophole had already been fixed
2551 by change 4.50/55 above.
2552
2553 If there are any other similar loopholes, the new check in host_aton()
2554 itself should stop them being exploited. The report I received stated that
2555 data on the command line could provoke the exploit when Exim was running as
2556 exim, but did not say which command line option was involved. All I could
2557 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2558 running as the user.
ea3a6f44 2559 CAN-2005-0021
85b87bc2
PH
2560
256161. There was a buffer overflow vulnerability in the SPA authentication code
2562 (which came originally from the Samba project). I have added a test to the
2563 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2564 CAN-2005-0022
b975ba52 2565
17ffcae7
PH
256662. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2567 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2568
d95f9fdb
PH
256963. The daemon start-up calls getloadavg() while still root for those OS that
2570 need the first call to be done as root, but it missed one case: when
2571 deliver_queue_load_max is set with deliver_drop_privilege. This is
2572 necessary for the benefit of the queue runner, because there is no re-exec
2573 when deliver_drop_privilege is set.
2574
86b8287f
PH
257564. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2576 This has been fixed.
2577
60dc5e56
PH
257865. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2579 was in use, was not putting the data itself into the right store pool;
2580 consequently, it could be overwritten for a subsequent message in the same
2581 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2582 the caching.)
2583
533244af
PH
258466. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2585
a5a28604
PH
258667. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2587 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2588 the function were treating the return as a boolean value, which happened to
2589 work because 0=false and not-0=true, but is not correct code.
2590
7e634d24
PH
259168. The host_aton() function was not handling scoped IPv6 addresses (those
2592 with, for example, "%eth0" on the end) correctly.
2593
3e11c26b
PH
259469. Fixed some compiler warnings in acl.c for the bitmaps specified with
2595 negated items (that is, ~something) in unsigned ints. Some compilers
2596 apparently mutter when there is no cast.
2597
6729cf78
PH
259870. If an address verification called from an ACL failed, and did not produce a
2599 user-specific message (i.e. there was only a "system" message), nothing was
2600 put in $acl_verify_message. In this situation, it now puts the system
2601 message there.
2602
00f00ca5
PH
260371. Change 4.23/11 added synchronization checking at the start of an SMTP
2604 session; change 4.31/43 added the unwanted input to the log line - except
2605 that it did not do this in the start of session case. It now does.
2606
c9bdd01c
PH
260772. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2608 This is wrong and can cause the other end to generate a synchronization
2609 error if it is another Exim or anything else that does the synchronization
2610 check. A QUIT command is no longer sent after a timeout.
2611
d43194df
PH
261273. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2613 during host lookups.
2614
fe5b5d0b
PH
261574. The defer_ok option of callout verification was not working if it was used
2616 when verifying addresses in header lines, that is, for this case:
2617
2618 verify = header_sender/callout=defer_ok
2619
76a2d7ba
PH
262075. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2621 those file descriptors could be used for SMTP connections. If anything
2622 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2623 could be sent to the SMTP client, causing chaos. The daemon now opens
2624 stdin, stdout, and stderr to /dev/null when it puts itself into the
2625 background.
2626
262776. Arrange for output from Perl's "warn" command to be written to Exim's main
2628 log by default. The user can override this with suitable Perl magic.
2629
04f7d5b9
PH
263077. The use of log_message on a "discard" ACL verb, which is supposed to add to
2631 the log message when discard triggers, was not working for the DATA ACL or
2632 for the non-SMTP ACL.
2633
bc60667e
PH
263478. Error message wording change in sieve.c.
2635
bb6e88ff
PH
263679. If smtp_accept_max_per_host was set, the number of connections could be
2637 restricted to fewer than expected, because the daemon was trying to set up
2638 a new connection before checking whether the processes handling previous
2639 connections had finished. The check for completed processes is now done
2640 earlier. On busy systems, this bug wouldn't be noticed because something
2641 else would have woken the daemon, and it would have reaped the completed
2642 process earlier.
2643
1e70f85b
PH
264480. If a message was submitted locally by a user whose login name contained one
2645 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2646 It caused a spool format error. I have fixed the spool reading code. A
2647 related problem was that the "from" clause in the Received: line became
2648 illegal because of the space(s). It is now covered by ${quote_local_part.
2649
265081. Included the latest eximstats from Steve (adds average sizes to HTML Top
2651 tables).
2652
4e01f9d6
PH
265382. Updated OS/Makefile-AIX as per message from Mike Meredith.
2654
1ee1cef2
PH
265583. Patch from Sieve maintainer to fix unterminated string problem in
2656 "vacation" handling.
2657
6e2b4ccc
PH
265884. Some minor changes to the Linux configuration files to help with other
2659 OS variants using glibc.
2660
8e669ac1
PH
266185. One more patch for Sieve to update vacation handling to latest spec.
2662
495ae4b0 2663
bbe902f0
PH
2664----------------------------------------------------
2665See the note above about the 4.44 and 4.50 releases.
2666----------------------------------------------------
2667
2668
2669Exim version 4.44
2670-----------------
2671
2672 1. Change 4.43/35 introduced a bug that caused file counts to be
2673 incorrectly computed when quota_filecount was set in an appendfile
2674 transport
2675
2676 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2677 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2678 place.
2679
2680 3. Give more explanation in the error message when the command for a transport
2681 filter fails to execute.
2682
2683 4. There are several places where Exim runs a non-Exim command in a
2684 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2685 was being done only for the command run by the queryprogram router. It is
2686 now done for all such subprocesses. The other cases are: ${run, transport
2687 filters, and the commands run by the lmtp and pipe transports.
2688
2689 5. Some older OS have a limit of 256 on the maximum number of file
2690 descriptors. Exim was using setrlimit() to set 1000 as a large value
2691 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2692 systems. I've change it so that if it can't get 1000, it tries for 256.
2693
2694 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2695 was an oversight, and furthermore, ever since the addition of extra
2696 controls (e.g. 4.43/32), the checks on when to allow different forms of
2697 "control" were broken. There should now be diagnostics for all cases when a
2698 control that does not make sense is encountered.
2699
2700 7. $recipients is now available in the predata ACL (oversight).
2701
2702 8. Tidy the search cache before the fork to do a delivery from a message
2703 received from the command line. Otherwise the child will trigger a lookup
2704 failure and thereby defer the delivery if it tries to use (for example) a
2705 cached ldap connection that the parent has called unbind on.
2706
2707 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2708 of $address_data from the recipient verification was clobbered by the
2709 sender verification.
2710
271110. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2712 was its contents. (It was OK if the option was not defined at all.)
2713
271411. A "Completed" log line is now written for messages that are removed from
2715 the spool by the -Mrm option.
2716
271712. $host_address is now set to the target address during the checking of
2718 ignore_target_hosts.
2719
272013. When checking ignore_target_hosts for an ipliteral router, no host name was
2721 being passed; this would have caused $sender_host_name to have been used if
2722 matching the list had actually called for a host name (not very likely,
2723 since this list is usually IP addresses). A host name is now passed as
2724 "[x.x.x.x]".
2725
272614. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2727 code that specifies a non-restarting handler (typically sigaction() in
2728 modern systems) in an attempt to fix a rare and obscure crash bug.
2729
273015. Narrowed the window for a race in the daemon that could cause it to ignore
2731 SIGCHLD signals. This is not a major problem, because they are used only to
2732 wake it up if nothing else does.
2733
273416. A malformed maildirsize file could cause Exim to calculate negative values
2735 for the mailbox size or file count. Odd effects could occur as a result.
2736 The maildirsize information is now recalculated if the size or filecount
2737 end up negative.
2738
273917. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2740 support for a long time. Removed HAVE_SYS_VFS_H.
2741
ea3a6f44 274218. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2743
274419. Allow an empty sender to be matched against a lookup in an address list.
2745 Previously the only cases considered were a regular expression, or an
2746 empty pattern.
2747
274820. Exim went into a mad DNS lookup loop when doing a callout where the
2749 host was specified on the transport, if the DNS lookup yielded more than
2750 one IP address.
2751
ea3a6f44
NM
275221. The RFC2047 encoding function was originally intended for short strings
2753 such as real names; it was not keeping to the 75-character limit for
2754 encoded words that the RFC imposes. It now respects the limit, and
2755 generates multiple encoded words if necessary. To be on the safe side, I
2756 have increased the buffer size for the ${rfc2047: expansion operator from
2757 1024 to 2048 bytes.
bbe902f0 2758
ea3a6f44
NM
275922. Failure to deliver a bounce message always caused it to be frozen, even if
2760 there was an errors_to setting on the router. The errors_to setting is now
2761 respected.
bbe902f0
PH
2762
276323. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2764 canonical form (fully expanded) before being placed in
2765 $sender_host_address.
2766
276724. Updated eximstats to version 1.33
2768
ea3a6f44
NM
276925. Include certificate and key file names in error message when GnuTLS fails
2770 to set them up, because the GnuTLS error message doesn't include the name
2771 of the failing file when there is a problem reading it.
bbe902f0
PH
2772
277326. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2774 As per change 25.
bbe902f0 2775
ea3a6f44
NM
277627. Reset the locale to "C" after calling embedded Perl, in case it was changed
2777 (this can affect the format of dates).
bbe902f0 2778
ea3a6f44
NM
277928. exim_tidydb, when checking for the continued existence of a message for
2780 which it has found a message-specific retry record, was not finding
2781 messages that were in split spool directories. Consequently, it was
2782 deleting retry records that should have stayed in existence.
bbe902f0
PH
2783
278429. eximstats updated to version 1.35
2785 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2786 1.35 - bugfix such that pie charts by volume are generated correctly
2787
ea3a6f44
NM
278830. The SPA authentication driver was not abandoning authentication and moving
2789 on to the next authenticator when an expansion was forced to fail,
2790 contradicting the general specification for all authenticators. Instead it
2791 was generating a temporary error. It now behaves as specified.
bbe902f0 2792
ea3a6f44
NM
279331. The default ordering of permitted cipher suites for GnuTLS was pessimal
2794 (the order specifies the preference for clients). The order is now AES256,
2795 AES128, 3DES, ARCFOUR128.
bbe902f0 2796
ea3a6f44
NM
279731. Small patch to Sieve code - explicitly set From: when generating an
2798 autoreply.
bbe902f0 2799
ea3a6f44
NM
280032. Exim crashed if a remote delivery caused a very long error message to be
2801 recorded - for instance if somebody sent an entire SpamAssassin report back
2802 as a large number of 550 error lines. This bug was coincidentally fixed by
2803 increasing the size of one of Exim's internal buffers (big_buffer) that
2804 happened as part of the Exiscan merge. However, to be on the safe side, I
2805 have made the code more robust (and fixed the comments that describe what
2806 is going on).
bbe902f0 2807
ea3a6f44
NM
280833. Some experimental protocols are using DNS PTR records for new purposes. The
2809 keys for these records are domain names, not reversed IP addresses. The
2810 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2811 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2812 CAN-2005-0021
2813
ea3a6f44
NM
281434. The host_aton() function is supposed to be passed a string that is known
2815 to be a valid IP address. However, in the case of IPv6 addresses, it was
2816 not checking this. This is a hostage to fortune. Exim now panics and dies
2817 if the condition is not met. A case was found where this could be provoked
2818 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2819 components; fortuitously, this particular loophole had already been fixed
2820 by change 4.50/55 or 4.44/33 above.
2821
2822 If there are any other similar loopholes, the new check in host_aton()
2823 itself should stop them being exploited. The report I received stated that
2824 data on the command line could provoke the exploit when Exim was running as
2825 exim, but did not say which command line option was involved. All I could
2826 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2827 running as the user.
bbe902f0
PH
2828 CAN-2005-0021
2829
ea3a6f44
NM
283035. There was a buffer overflow vulnerability in the SPA authentication code
2831 (which came originally from the Samba project). I have added a test to the
2832 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2833 CAN-2005-0022
2834
ea3a6f44
NM
283536. The daemon start-up calls getloadavg() while still root for those OS that
2836 need the first call to be done as root, but it missed one case: when
2837 deliver_queue_load_max is set with deliver_drop_privilege. This is
2838 necessary for the benefit of the queue runner, because there is no re-exec
2839 when deliver_drop_privilege is set.
bbe902f0 2840
ea3a6f44
NM
284137. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2842 was in use, was not putting the data itself into the right store pool;
2843 consequently, it could be overwritten for a subsequent message in the same
2844 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2845 the caching.)
bbe902f0 2846
ea3a6f44
NM
284738. Sometimes the final signoff response after QUIT could fail to get
2848 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2849 < 0 before doing a fflush(). This bug looks as though it goes back to the
2850 introduction of TLS in release 3.20, but "sometimes" must have been rare
2851 because the tests only now provoked it.
bbe902f0
PH
2852
2853
495ae4b0
PH
2854Exim version 4.43
2855-----------------
2856
2857 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2858 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2859 Now it returns an integer. A number of calls were still expecting a T/F
2860 return. Fortuitously, in all cases, the tests worked in OK situations,
2861 which is the norm. However, things would have gone wrong on any write
2862 failures on the smtp file descriptor. This function is used when sending
2863 messages over SMTP and also when doing verify callouts.
2864
2865 2. When Exim is called to do synchronous delivery of a locally submitted
2866 message (the -odf or -odi options), it no longer closes stderr before doing
2867 the delivery.
2868
2869 3. Implemented the mua_wrapper option.
2870
2871 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2872
2873 5. Implemented the functions header_remove(), header_testname(),
2874 header_add_at_position(), and receive_remove_recipient(), and exported them
2875 to local_scan().
2876
2877 6. If an ACL "warn" statement specified the addition of headers, Exim already
2878 inserted X-ACL-Warn: at the start if there was no header name. However, it
2879 was not making this test for the second and subsequent header lines if
2880 there were newlines in the string. This meant that an invalid header could
2881 be inserted if Exim was badly configured.
2882
2883 7. Allow an ACL "warn" statement to add header lines at the start or after all
2884 the Received: headers, as well as at the end.
2885
2886 8. Added the rcpt_4xx retry error code.
2887
2888 9. Added postmaster_mailfrom=xxx to callout verification option.
2889
289010. Added mailfrom=xxxx to the callout verification option, for verify=
2891 header_sender only.
2892
289311. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2894 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2895
289612. Inserted some casts to stop certain compilers warning when using pointer
2897 differences as field lengths or precisions in printf-type calls (mostly
2898 affecting debugging statements).
2899
290013. Added optional readline() support for -be (dynamically loaded).
2901
290214. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2903 same clock tick as a message's arrival, so that its received time was the
2904 same as the "first fail" time on the retry record, and that message
2905 remained on the queue past the ultimate address timeout, every queue runner
2906 would try a delivery (because it was past the ultimate address timeout) but
2907 after another failure, the ultimate address timeout, which should have then
2908 bounced the address, did not kick in. This was a "< instead of <=" error;
2909 in most cases the first failure would have been in the next clock tick
2910 after the received time, and all would be well.
2911
291215. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2913 being recognized when the domain list was tested by the match_domain
2914 condition in an expansion string.
2915
291616. Added the ${str2b64: operator.
2917
291817. Exim was always calling setrlimit() to set a large limit for the number of
2919 processes, without checking whether the existing limit was already
2920 adequate. (It did check for the limit on file descriptors.) Furthermore,
2921 errors from getrlimit() and setrlimit() were being ignored. Now they are
2922 logged to the main and panic logs, but Exim does carry on, to try to do its
2923 job under whatever limits there are.
2924
292518. Imported PCRE 5.0.
2926
292719. Trivial typo in log message " temporarily refused connection" (the leading
2928 space).
2929
293020. If the log selector return_path_on_delivery was set and an address was
2931 redirected to /dev/null, the delivery process crashed because it assumed
2932 that a return path would always be set for a "successful" delivery. In this
2933 case, the whole delivery is bypassed as an optimization, and therefore no
2934 return path is set.
2935
293621. Internal re-arrangement: the function for sending a challenge and reading
2937 a response while authentication was assuming a zero-terminated challenge
2938 string. It's now changed to take a pointer and a length, to allow for
2939 binary data in such strings.
2940
294122. Added the cyrus_sasl authenticator (code supplied by MBM).
2942
294323. Exim was not respecting finduser_retries when seeking the login of the
2944 uid under which it was called; it was always trying 10 times. (The default
2945 setting of finduser_retries is zero.) Also, it was sleeping after the final
2946 failure, which is pointless.
2947
294824. Implemented tls_on_connect_ports.
2949
295025. Implemented acl_smtp_predata.
2951
295226. If the domain in control=submission is set empty, Exim assumes that the
2953 authenticated id is a complete email address when it generates From: or
2954 Sender: header lines.
2955
295627. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2957 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2958 chown and chgrp in /bin and hostname in /usr/bin.
2959
296028. Exim was keeping the "process log" file open after each use, just as it
2961 does for the main log. This opens the possibility of it remaining open for
2962 long periods when the USR1 signal hits a daemon. Occasional processlog
2963 errors were reported, that could have been caused by this. Anyway, it seems
2964 much more sensible not to leave this file open at all, so that is what now
2965 happens.
2966
296729. The long-running daemon process does not normally write to the log once it
2968 has entered its main loop, and it closes the log before doing so. This is
2969 so that log files can straightforwardly be renamed and moved. However,
2970 there are a couple of unusual error situations where the daemon does write
2971 log entries, and I had neglected to close the log afterwards.
2972
297330. The text of an SMTP error response that was received during a remote
2974 delivery was being truncated at 512 bytes. This is too short for some of
2975 the long messages that one sometimes sees. I've increased the limit to
2976 1024.
2977
297831. It is now possible to make retry rules that apply only when a message has a
2979 specific sender, in particular, an empty sender.
2980
298132. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2982 it possible to be selective about when SMTP synchronization is enforced.
2983
298433. Added "control = caseful_local_part" and "control = "caselower_local_part".
2985
298632. Implemented hosts_connection_nolog.
2987
298833. Added an ACL for QUIT.
2989
299034. Setting "delay_warning=" to disable warnings was not working; it gave a
2991 syntax error.
2992
299335. Added mailbox_size and mailbox_filecount to appendfile.
2994
299536. Added control = no_multiline_responses to ACLs.
2996
299737. There was a bug in the logic of the code that waits for the clock to tick
2998 in the case where the clock went backwards by a substantial amount such
2999 that the microsecond fraction of "now" was more than the microsecond
3000 fraction of "then" (but the whole seconds number was less).
3001
300238. Added support for the libradius Radius client library this is found on
3003 FreeBSD (previously only the radiusclient library was supported).
3004
3005
3006Exim version 4.42
3007-----------------
3008
3009 1. When certain lookups returned multiple values in the form name=value, the
3010 quoting of the values was not always being done properly. Specifically:
3011 (a) If the value started with a double quote, but contained no whitespace,
3012 it was not quoted.
3013 (b) If the value contained whitespace other than a space character (i.e.
3014 tabs or newlines or carriage returns) it was not quoted.
3015 This fix has been applied to the mysql and pgsql lookups by writing a
3016 separate quoting function and calling it from the lookup code. The fix
3017 should probably also be applied to nisplus, ibase and oracle lookups, but
3018 since I cannot test any of those, I have not disturbed their existing code.
3019
3020 2. A hit in the callout cache for a specific address caused a log line with no
3021 reason for rejecting RCPT. Now it says "Previous (cached) callout
3022 verification failure".
3023
3024 3. There was an off-by-one bug in the queryprogram router. An over-long
3025 return line was truncated at 256 instead of 255 characters, thereby
3026 overflowing its buffer with the terminating zero. As well as fixing this, I
3027 have increased the buffer size to 1024 (and made a note to document this).
3028
3029 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3030 when Exim is waiting for an SMTP response from a remote server, Exim
3031 restarts its select() call on the socket, thereby resetting its timeout.
3032 This is not a problem when such interrupts are rare. Somebody set up a cron
3033 job to run exiwhat every 2 minutes, which is less than the normal select()
3034 timeout (5 or 10 minutes). This meant that the select() timeout never
3035 kicked in because it was always reset. I have fixed this by comparing the
3036 time when an interrupt arrives with the time at the start of the first call
3037 to select(). If more time than the timeout has elapsed, the interrupt is
3038 treated as a timeout.
3039
3040 5. Some internal re-factoring in preparation for the addition of Sieve
3041 extensions (by MH). In particular, the "personal" test is moved to a
3042 separate function, and given an option for scanning Cc: and Bcc: (which is
3043 not set for Exim filters).
3044
3045 6. When Exim created an email address using the login of the caller as the
3046 local part (e.g. when creating a From: or Sender: header line), it was not
3047 quoting the local part when it contained special characters such as @.
3048
3049 7. Installed new OpenBSD configuration files.
3050
3051 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3052 try to make them clearer.
3053
3054 9. Callout options, other than the timeout value, were being ignored when
3055 verifying sender addresses in header lines. For example, when using
3056
3057 verify = header_sender/callout=no_cache
3058
3059 the cache was (incorrectly) being used.
3060
306110. Added a missing instance of ${EXE} to the exim_install script; this affects
3062 only the Cygwin environment.
3063
306411. When return_path_on_delivery was set as a log selector, if different remote
3065 addresses in the same message used different return paths and parallel
3066 remote delivery occurred, the wrong values would sometimes be logged.
3067 (Whenever a remote delivery process finished, the return path value from
3068 the most recently started remote delivery process was logged.)
3069
307012. RFC 3848 specifies standard names for the "with" phrase in Received: header
3071 lines when AUTH and/or TLS are in use. This is the "received protocol"
3072 field. Exim used to use "asmtp" for authenticated SMTP, without any
3073 indication (in the protocol name) for TLS use. Now it follows the RFC and
3074 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3075 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3076 names appear in log lines as well as in Received: header lines.
3077
307813. Installed MH's patches for Sieve to add the "copy" and "vacation"
3079 extensions, and comparison tests, and to fix some bugs.
3080
308114. Changes to the "personal" filter test:
3082
3083 (1) The test was buggy in that it was just doing the equivalent of
3084 "contains" tests on header lines. For example, if a user's address was
3085 anne@some.where, the "personal" test would incorrectly be true for
3086
3087 To: susanne@some.where
3088
3089 This test is now done by extracting each address from the header in turn,
3090 and checking the entire address. Other tests that are part of "personal"
3091 are now done using regular expressions (for example, to check local parts
3092 of addresses in From: header lines).
3093
3094 (2) The list of non-personal local parts in From: addresses has been
3095 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3096 taken from the Sieve specification recommendations.
3097
3098 (3) If the message contains any header line starting with "List-" it is
3099 treated as non-personal.
3100
3101 (4) The test for "circular" in the Subject: header line has been removed
3102 because it now seems ill-conceived.
3103
310415. Minor typos in src/EDITME comments corrected.
3105
310616. Installed latest exipick from John Jetmore.
3107
310817. If headers_add on a router specified a text string that was too long for
3109 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3110 of string_sprintf() is now avoided.
3111
311218. $message_body_size was not set (it was always zero) when running the DATA
3113 ACL and the local_scan() function.
3114
311519. For the "mail" command in an Exim filter, no default was being set for
3116 the once_repeat time, causing a random time value to be used if "once" was
3117 specified. (If the value happened to be <= 0, no repeat happened.) The
3118 default is now 0s, meaning "never repeat". The "vacation" command was OK
3119 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3120 (I found it when inspecting the code).
3121
312220. There is now an overall timeout for performing a callout verification. It
3123 defaults to 4 times the callout timeout, which applies to individual SMTP
3124 commands during the callout. The overall timeout applies when there is more
3125 than one host that can be tried. The timeout is checked before trying the
3126 next host. This prevents very long delays if there are a large number of
3127 hosts and all are timing out (e.g. when the network connections are timing
3128 out). The value of the overall timeout can be changed by specifying an
3129 additional sub-option for "callout", called "maxwait". For example:
3130
3131 verify = sender/callout=5s,maxwait=20s
3132
313321. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3134 to the end before writing, but this should make it even safer).
3135
313622. Exim was forgetting that it had advertised PIPELINING for the second and
3137 subsequent messages on an SMTP connection. It was also not resetting its
3138 memory on STARTTLS and an internal HELO.
3139
314023. When Exim logs an SMTP synchronization error within a session, it now
3141 records whether PIPELINING has been advertised or not.
3142
314324. Added 3 instances of "(long int)" casts to time_t variables that were being
3144 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3145 rather than long int.
3146
314725. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3148
314926. Added the never_mail option to autoreply.
3150
3151
3152Exim version 4.41
3153-----------------
3154
3155 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3156 crash if the getsockname() call failed; this can happen if a connection is
3157 closed very soon after it is established. The problem was simply in the
3158 order in which certain operations were done, causing Exim to try to write
3159 to the SMTP stream before it had set up the file descriptor. The bug has
3160 been fixed by making things happen in the correct order.
3161
3162
3163Exim version 4.40
3164-----------------
3165
3166 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3167 before the connection was closed, thus losing the rejection response.
3168
3169 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3170 some early Solaris releases, but causes trouble in current releases where
3171 socklen_t is defined.
3172
3173 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3174 always exist.
3175
3176 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3177 configured.
3178
3179 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3180 that releasing the top of it at the end releases what was used for sub-
3181 expansions (unless the block got too big). However, discard this block if
3182 the first thing is a variable or header, so that we can use its block when
3183 it is dynamic (useful for very large $message_headers, for example).
3184
3185 6. Lookups now cache *every* query, not just the most recent. A new, separate
3186 store pool is used for this. It can be recovered when all lookup caches are
3187 flushed. Lookups now release memory at the end of their result strings.
3188 This has involved some general refactoring of the lookup sources.
3189
3190 7. Some code has been added to the store_xxx() functions to reduce the amount
3191 of flapping under certain conditions.
3192
3193 8. log_incoming_interface used to affect only the <= reception log lines. Now
3194 it causes the local interface and port to be added to several more SMTP log
3195 lines, for example "SMTP connection from", and rejection lines.
3196
3197 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3198
319910. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3200
320111. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3202 could be overwritten at the end of the current message (or the start of a
3203 new message if it was set in a HELO ACL). The value is now preserved for
3204 the duration of the SMTP connection.
3205
320612. If a transport had a headers_rewrite setting, and a matching header line
3207 contained an unqualified address, that address was qualified, even if it
3208 did not match any rewriting rules. The underlying bug was that the values
3209 of the flags that permit the existence of unqualified sender and recipient
3210 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3211 non-local messages, and by -bnq for local messages) were not being
3212 preserved with the message after it was received.
3213
321413. When Exim was logging an SMTP synchronization error, it could sometimes log
3215 "next input=" as part of the text comprising the host identity instead of
3216 the correct text. The code was using the same buffer for two different
3217 strings. However, depending on which order the printing function evaluated
3218 its arguments, the bug did not always show up. Under Linux, for example, my
3219 test suite worked just fine.
3220
322114. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3222 doesn't work with some older versions of Perl. It has been changed to "my",
3223 which in any case is probably the better facility to use.
3224
322515. A really picky compiler found some instances of statements for creating
3226 error messages that either had too many or two few arguments for the format
3227 string.
3228
322916. The size of the buffer for calls to the DNS resolver has been increased
3230 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3231 for addresses that have a lot of PTR records. This alleviates a problem; it
3232 does not fully solve it.
3233
323417. A dnsdb lookup for PTR records that receives more data than will fit in the
3235 buffer now truncates the list and logs the incident, which is the same
3236 action as happens when Exim is looking up a host name and its aliases.
3237 Previously in this situation something unpredictable would happen;
3238 sometimes it was "internal error: store_reset failed".
3239
324018. If a server dropped the connection unexpectedly when an Exim client was
3241 using GnuTLS and trying to read a response, the client delivery process
3242 crashed while trying to generate an error log message.
3243
324419. If a "warn" verb in an ACL added multiple headers to a message in a single
3245 string, for example:
3246
3247 warn message = H1: something\nH2: something
3248
3249 the text was added as a single header line from Exim's point of view
3250 though it ended up OK in the delivered message. However, searching for the
3251 second and subsequent header lines using $h_h2: did not work. This has been
3252 fixed. Similarly, if a system filter added multiple headers in this way,
3253 the routers could not see them.
3254
325520. Expanded the error message when iplsearch is called with an invalid key to
3256 suggest using net-iplsearch in a host list.
3257
325821. When running tests using -bh, any delays imposed by "delay" modifiers in
3259 ACLs are no longer actually imposed (and a message to that effect is
3260 output).
3261
326222. If a "gecos" field in a passwd entry contained escaped characters, in
3263 particular, if it contained a \" sequence, Exim got it wrong when building
3264 a From: or a Sender: header from that name. A second bug also caused
3265 incorrect handling when an unquoted " was present following a character
3266 that needed quoting.
3267
326823. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3269 was not being matched caselessly.
3270
327124. Arranged for all hyphens in the exim.8 source to be escaped with
3272 backslashes.
3273
327425. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3275 properly. Recipient callout cache records were still being keyed to include
3276 the sender, even when use_sender was set false. This led to far more
3277 callouts that were necessary. The sender is no longer included in the key
3278 when use_sender is false.
3279
328026. Added "control = submission" modifier to ACLs.
3281
328227. Added the ${base62d: operator to decode base 62 numbers.
3283
328428. dnsdb lookups can now access SRV records.
3285
328629. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3287 the configuration file.
3288
328930. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3290 (-v) mode. This makes the output for a verbose queue run more intelligible.
3291
329231. Added a use_postmaster feature to recipient callouts.
3293
329432. Added the $body_zerocount variable, containing the number of binary zero
3295 bytes in the message body.
3296
329733. The time of last modification of the "new" subdirectory is now used as the
3298 "mailbox time last read" when there is a quota error for a maildir
3299 delivery.
3300
330134. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3302
330335. Added +ignore_unknown as a special item in host lists.
3304
330536. Code for decoding IPv6 addresses in host lists is now included, even if
3306 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3307 address was recognized as an IP address, but was then not correctly decoded
3308 into binary, causing unexpected and incorrect effects when compared with
3309 another IP address.
3310
3311
3312Exim version 4.34
3313-----------------
3314
3315 1. Very minor rewording of debugging text in manualroute to say "list of
3316 hosts" instead of "hostlist".
3317
3318 2. If verify=header_syntax was set, and a header line with an unqualified
3319 address (no domain) and a large number of spaces between the end of the
3320 name and the colon was received, the reception process suffered a buffer
3321 overflow, and (when I tested it) crashed. This was caused by some obsolete
3322 code that should have been removed. The fix is to remove it!
3323
3324 3. When running in the test harness, delay a bit after writing a bounce
3325 message to get a bit more predictability in the log output.
3326
3327 4. Added a call to search_tidyup() just before forking a reception process. In
3328 theory, someone could use a lookup in the expansion of smtp_accept_max_
3329 per_host which, without the tidyup, could leave open a database connection.
3330
3331 5. Added the variables $recipient_data and $sender_data which get set from a
3332 lookup success in an ACL "recipients" or "senders" condition, or a router
3333 "senders" option, similar to $domain_data and $local_part_data.
3334
3335 6. Moved the writing of debug_print from before to after the "senders" test
3336 for routers.
3337
3338 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3339 problems for message scanning, either using a data ACL, or using
3340 local_scan() because the Received: header was not generated till after they
3341 were called (in order to set the time as the time of reception completion).
3342 I have revised the way this works. The header is now generated after the
3343 body is received, but before the ACL or local_scan() are called. After they
3344 are run, the timestamp in the header is updated.
3345
3346
3347Exim version 4.33
3348-----------------
3349
3350 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3351 before starting a queue runner without re-exec. This happened only when
3352 deliver_drop_privilege was set or when the Exim user was set to root. The
3353 effect of the bug was that timeouts during subsequent deliveries caused
3354 crashes instead of being properly handled. The handler is now left at its
3355 default (and expected) setting.
3356
3357 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3358 message, again when deliver_drop_privilege is set or Exim is run as root.
3359 The bug described in (1) was not present in this case, but the tidying up
3360 of the other signals was missing. I have made the two cases consistent.
3361
3362 3. The ignore_target_hosts setting on a manualroute router was being ignored
3363 for hosts that were looked up using the /MX notation.
3364
3365 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3366 in domain lists.
3367
3368 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3369 operated on the sender address. After changing the $sender_address to <>
3370 for the sender address verify, Exim was re-instated it as the original
3371 (before rewriting) address, but remembering that it had rewritten it, so it
3372 wasn't rewriting it again. This bug also had the effect of breaking the
3373 sender address verification caching when the sender address was rewritten.
3374
3375 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3376 This has been changed so that if the ip literal address matches
3377 ignore_target_hosts, the router declines.
3378
3379 7. Added expansion conditions match_domain, match_address, and match_local_
3380 part (NOT match_host).
3381
3382 8. The placeholder for the Received: header didn't have a length field set.
3383
3384 9. Added code to Exim itself and to exim_lock to test for a specific race
3385 condition that could lead to file corruption when using MBX delivery. The
3386 issue is with the lockfile that is created in /tmp. If this file is removed
3387 after a process has opened it but before that process has acquired a lock,
3388 there is the potential for a second process to recreate the file and also
3389 acquire a lock. This could lead to two Exim processes writing to the file
3390 at the same time. The added code performs the same test as UW imapd; it
3391 checks after acquiring the lock that its file descriptor still refers to
3392 the same named file.
3393
339410. The buffer for building added header lines was of fixed size, 8192 bytes.
3395 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3396 when Exim is built.
3397
339811. Added the smtp_active_hostname option. If used, this will typically be made
3399 to depend on the incoming interface address. Because $interface_address is
3400 not set up until the daemon has forked a reception process, error responses
3401 that can happen earlier (such as "too many connections") no longer contain
3402 a host name.
3403
340412. If an expansion in a condition on a "warn" statement fails because a lookup
3405 defers, the "warn" statement is abandoned, and the next ACL statement is
3406 processed. Previously this caused the whole ACL to be aborted.
3407
340813. Added the iplsearch lookup type.
3409
341014. Added ident_timeout as a log selector.
3411
341215. Added tls_certificate_verified as a log selector.
3413
341416. Added a global option tls_require_ciphers (compare the smtp transport
3415 option of the same name). This controls incoming TLS connections.
3416
341717. I finally figured out how to make tls_require_ciphers do a similar thing
3418 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3419 before starting the TLS session.
3420
342118. Tabs are now shown as \t in -bP output.
3422
342319. If the log selector return_path_on_delivery was set, Exim crashed when
3424 bouncing a message because it had too many Received: header lines.
3425
342620. If two routers both had headers_remove settings, and the first one included
3427 a superfluous trailing colon, the final name in the first list and the
3428 first name in the second list were incorrectly joined into one item (with a
3429 colon in the middle).
3430
3431
3432Exim version 4.32
3433-----------------
3434
3435 1. Added -C and -D options to the exinext utility, mainly to make it easier
3436 to include in the automated testing, but these could be helpful when
3437 multiple configurations are in use.
3438
3439 2. The exinext utility was not formatting the output nicely when there was
3440 an alternate port involved in the retry record key, nor when there was a
3441 message id as well (for retries that were specific to a specific message
3442 and a specific host). It was also confused by IPv6 addresses, because of
3443 the additional colons they contain. I have fixed the IPv4 problem, and
3444 patched it up to do a reasonable job for IPv6.
3445
3446 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3447 delivery, the log line now contains "pipelined" if PIPELINING was used.
3448
3449 4. An SMTP transport process used to panic and die if the bind() call to set
3450 an explicit outgoing interface failed. This has been changed; it is now
3451 treated in the same way as a connect() failure.
3452
3453 5. A reference to $sender_host_name in the part of a conditional expansion
3454 that was being skipped was still causing a DNS lookup. This no longer
3455 occurs.
3456
3457 6. The def: expansion condition was not recognizing references to header lines
3458 that used bh_ and bheader_.
3459
3460 7. Added the _cache feature to named lists.
3461
3462 8. The code for checking quota_filecount in the appendfile transport was
3463 allowing one more file than it should have been.
3464
3465 9. For compatibility with Sendmail, the command line option
3466
3467 -prval:sval
3468
3469 is equivalent to
3470
3471 -oMr rval -oMs sval
3472
3473 and sets the incoming protocol and host name (for trusted callers). The
3474 host name and its colon can be omitted when only the protocol is to be set.
3475 Note the Exim already has two private options, -pd and -ps, that refer to
3476 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3477 "s", but I don't think that's a major issue.
3478
347910. A number of refactoring changes to the code, none of which should affect
3480 Exim's behaviour:
3481
3482 (a) The number of logging options was getting close to filling up the
3483 32-bit word that was used as a bit map. I have split them into two classes:
3484 those that are passed in the argument to log_write(), and those that are
3485 only ever tested independently outside of that function. These are now in
3486 separate 32-bit words, so there is plenty of room for expansion again.
3487 There is no change in the user interface or the logging behaviour.
3488
3489 (b) When building, for example, log lines, the code previously used a
3490 macro that called string_cat() twice, in order to add two strings. This is
3491 not really sufficiently general. Furthermore, there was one instance where
3492 it was actually wrong because one of the argument was used twice, and in
3493 one call a function was used. (As it happened, calling the function twice
3494 did not affect the overall behaviour.) The macro has been replaced by a
3495 function that can join an arbitrary number of extra strings onto a growing
3496 string.
3497
3498 (c) The code for expansion conditions now uses a table and a binary chop
3499 instead of a serial search (which was left over from when there were very
3500 few conditions). Also, it now recognizes conditions like "pam" even when
3501 the relevant support is not compiled in: a suitably worded error message is
3502 given if an attempt is made to use such a condition.
3503
350411. Added ${time_interval:xxxxx}.
3505
350612. A bug was causing one of the ddress fields not to be passed back correctly
3507 from remote delivery subprocesses. The field in question was not being
3508 subsequently used, so this caused to problems in practice.
3509
351013. Added new log selectors queue_time and deliver_time.
3511
351214. Might have fixed a bug in maildirsizefile handling that threw up
3513 "unexpected character" debug warnings, and recalculated the data
3514 unnecessarily. In any case, I expanded the warning message to give more
3515 information.
3516
351715. Added the message "Restricted characters in address" to the statements in
3518 the default ACL that block characters like @ and % in local parts.
3519
352016. Change 71 for release 4.31 proved to be much less benign that I imagined.
3521 Three changes have been made:
3522
3523 (a) There was a serious bug; a negative response to MAIL caused the whole
3524 recipient domain to be cached as invalid, thereby blocking all messages
3525 to all local parts at the same domain, from all senders. This bug has
3526 been fixed. The domain is no longer cached after a negative response to
3527 MAIL if the sender used is not empty.
3528
3529 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3530 been restored.
3531
3532 (c) A new callout option, "use_sender" has been added for people who want
3533 the modified behaviour.
3534
3535
3536Exim version 4.31
3537-----------------
3538
3539 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3540 Larry Rosenman.
3541
3542 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3543 indeed breaks things for older releases.
3544
3545 3. Added additional logging to the case where there is a problem reading data
3546 from a filter that is running in a subprocess using a pipe, in order to
3547 try to track down a specific problem.