Fixed behaviour of exiwhat when no config. Fixes: #497
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447de4b0 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.560 2009/01/02 16:58:05 nm4 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
cdd3bb85
TK
9TK/01 Added patch by Johannes Berg that expands the main option
10 "spamd_servers" if it starts with a dollar sign.
11
12TK/02 Write list of recipients to X-Envelope-Sender header when building
13 the mbox-format spool file for content scanning (suggested by Jakob
14 Hirsch)
15
16TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
17 (http://www.dcc-servers.net/) support via dccifd. Activated by
18 setting EXPERIMENTAL_DCC=yes in Local/Makefile. Check out
19 experimental_spec.txt for more documentation.
20
21TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
22 by Mark Daniel Reidel <mr@df.eu>.
23
210f147e
NM
24NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
25 When building exim an external PCRE library is now needed -
26 PCRE is a system library on the majority of modern systems.
27 See entry on PCRE_LIBS in EDITME file.
28
deafd5b3
NM
29NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
30 conversation. Added nologin parameter to request.
31 Patch contributed by Kirill Miazine
32
089793a4
TF
33TF/01 Do not log submission mode rewrites if they do not change the address.
34
5f16ca82
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35TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
36
dae9d94e
NM
37NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
38 log files in place. Contributed by Roberto Lima
39
3f0da4d0
NM
40NM/04 Bugzilla 667: close socket used by dovecot authenticator
41
06864c44
TF
42TF/03 Bugzilla 615: When checking the local_parts router precondition
43 after a local_part_suffix or local_part_prefix option, Exim now
44 does not use the address's named list lookup cache, since this
45 contains cached lookups for the whole local part.
46
65a7d8c3
NM
47NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
48 Robert Millan. Documentation is in experimental-spec.txt
49
23510047 50TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 51
5f28a6e8
NM
52NM/05 Bugzilla 437: Prevent Maildix aux files being created with mode 000
53
ce552449 54NM/05 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
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55 Patch provided by Jan Srzednicki
56
89dec7b6
TF
57TF/05 Leading white space used to be stripped from $spam_report which
58 wrecked the formatting. Now it is preserved.
5f28a6e8 59
a99de90c
TF
60TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
61 that they are available at delivery time.
62
e2803e40
TF
63TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
64
7199e1ee
TF
65TF/08 TLS error reporting now respects the incoming_interface and
66 incoming_port log selectors.
67
e276e04b
TF
68TF/09 Produce a more useful error message if an SMTP transport's hosts
69 setting expands to an empty string.
70
ce552449
NM
71NM/06 Bugzilla 744: EXPN did not work under TLS.
72 Patch provided by Phil Pennock
73
e765a0f1
NM
74NM/07 Bugzilla 769: Extraneous comma in usage fprintf
75 Patch provided by Richard Godbee
76
4f054c63 77NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 78 acl_smtp_notquit, added index entry.
4f054c63 79
24c929a2
NM
80NM/09 Bugzilla 787: Potential buffer overflow in string_format
81 Patch provided by Eugene Bujak
82
cf73943b
NM
83NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
84 Patch provided by Maxim Dounin
85
b52bc06e
NM
86NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
87 Patch provided by Phil Pennock
88
447de4b0
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89NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
90
deafd5b3 91
47db1125
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92Exim version 4.69
93-----------------
94
4b3504d0
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95TK/01 Add preliminary DKIM support. Currently requires a forked version of
96 ALT-N's libdkim that I have put here:
97 http://duncanthrax.net/exim-experimental/
98
99 Note to Michael Haardt: I had to rename some vars in sieve.c. They
100 were called 'true' and it seems that C99 defines that as a reserved
101 keyword to be used with 'bool' variable types. That means you could
102 not include C99-style headers which use bools without triggering
103 build errors in sieve.c.
104
81ea09ca
NM
105NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
106 as mailq or other aliases. Changed the --help handling significantly
107 to do whats expected. exim_usage() emits usage/help information.
108
f13cddcb
SC
109SC/01 Added the -bylocaldomain option to eximstats.
110
8ad076b2
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111NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
112
a843aaa6
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113NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
114
47db1125
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115NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
116
117
eb4c0de6
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118Exim version 4.68
119-----------------
120
121PH/01 Another patch from the Sieve maintainer.
122
6a3bceb1
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123PH/02 When an IPv6 address is converted to a string for single-key lookup
124 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
125 dots are used instead of colons so that keys in lsearch files need not
126 contain colons. This was done some time before quoting was made available
127 in lsearch files. However, iplsearch files do require colons in IPv6 keys
128 (notated using the quote facility) so as to distinguish them from IPv4
129 keys. This meant that lookups for IP addresses in host lists did not work
130 for iplsearch lookups.
131
132 This has been fixed by arranging for IPv6 addresses to be expressed with
133 colons if the lookup type is iplsearch. This is not incompatible, because
134 previously such lookups could never work.
135
136 The situation is now rather anomolous, since one *can* have colons in
137 ordinary lsearch keys. However, making the change in all cases is
138 incompatible and would probably break a number of configurations.
139
2e30fa9d
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140TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
141 version.
142
0806a9c5
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143MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
144 conversion specification without a maximum field width, thereby enabling
145 a rogue spamd server to cause a buffer overflow. While nobody in their
146 right mind would setup Exim to query an untrusted spamd server, an
147 attacker that gains access to a server running spamd could potentially
148 exploit this vulnerability to run arbitrary code as the Exim user.
149
ae276964
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150TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
151 $primary_hostname instead of what libspf2 thinks the hosts name is.
152
0f2cbd1b
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153MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
154 a directory entry by the name of the lookup key. Previously, if a
155 symlink pointed to a non-existing file or a file in a directory that
156 Exim lacked permissions to read, a lookup for a key matching that
157 symlink would fail. Now it is enough that a matching directory entry
158 exists, symlink or not. (Bugzilla 503.)
159
2b85bce7
PH
160PH/03 The body_linecount and body_zerocount variables are now exported in the
161 local_scan API.
162
93655c46
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163PH/04 Added the $dnslist_matched variable.
164
6c512171
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165PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
166 This means they are set thereafter only if the connection becomes
167 encrypted.
168
169PH/06 Added the client_condition to authenticators so that some can be skipped
170 by clients under certain conditions.
171
aa6dc513
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172PH/07 The error message for a badly-placed control=no_multiline_responses left
173 "_responses" off the end of the name.
174
a96603a0
PH
175PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
176
8f240103
PH
177PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
178 (without spaces) instead of just copying the configuration text.
179
180PH/10 Added the /noupdate option to the ratelimit ACL condition.
181
d677b2f2
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182PH/11 Added $max_received_linelength.
183
d52120f2
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184PH/12 Added +ignore_defer and +include_defer to host lists.
185
64f2600a
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186PH/13 Installed PCRE version 7.2. This needed some changes because of the new
187 way in which PCRE > 7.0 is built.
188
8669f003
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189PH/14 Implemented queue_only_load_latch.
190
a4dc33a8
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191PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
192 MAIL command. The effect was to mangle the value on 64-bit systems.
193
d6a60c0f
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194PH/16 Another patch from the Sieve maintainer.
195
8f128379
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196PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
197
8932dffe
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198PH/18 If a system quota error occurred while trying to create the file for
199 a maildir delivery, the message "Mailbox is full" was not appended to the
200 bounce if the delivery eventually timed out. Change 4.67/27 below applied
201 only to a quota excession during the actual writing of the file.
d6a60c0f 202
ddea74fa 203PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
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204 characters?) which causes problems in log lines. The DN values are now
205 passed through string_printing() before being added to log lines.
206
ddea74fa 207PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
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208 and InterBase are left for another time.)
209
ddea74fa
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210PH/21 Added message_body_newlines option.
211
ce9f225c
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212PH/22 Guard against possible overflow in moan_check_errorcopy().
213
19897d52
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214PH/23 POSIX allows open() to be a macro; guard against that.
215
bc64a74d
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216PH/24 If the recipient of an error message contained an @ in the local part
217 (suitably quoted, of course), incorrect values were put in $domain and
218 $local_part during the evaluation of errors_copy.
219
eb4c0de6 220
b4ed4da0
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221Exim version 4.67
222-----------------
223
22ad45c9
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224MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
225 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
226 Jan Srzednicki.
227
b4ed4da0
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228PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
229 issue a MAIL command.
230
431b7361
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231PH/02 In an ACL statement such as
232
233 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
234
235 if a client was not listed at all, or was listed with a value other than
236 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
237 the condition was not true (as it should be), so access was not denied.
238 The bug was that the ! inversion was incorrectly passed on to the second
239 item. This has been fixed.
240
241PH/03 Added additional dnslists conditions == and =& which are different from
242 = and & when the dns lookup returns more than one IP address.
243
83da1223
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244PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
245 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
246
54fc8428
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247PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
248 FSYNC, which compiles an option called disable_fsync that allows for
249 bypassing fsync(). The documentation is heavily laced with warnings.
250
34c5e8dd
SC
251SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
252
bbe15da8
PH
253PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
254 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
255 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
256 including adding "make clean"; (3) Added -fPIC when compiling the test
257 dynamically loaded module, to get rid of a warning.
258
0e8a9471
MH
259MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
260 message fails, move_frozen_messages = true and ignore_bounce_errors_after
261 = 0s. The bug is otherwise harmless.
262
f0872424
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263PH/07 There was a bug in the dovecot authenticator such that the value of
264 $auth1 could be overwritten, and so not correctly preserved, after a
265 successful authentication. This usually meant that the value preserved by
266 the server_setid option was incorrect.
267
b01dd148
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268PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
269
6bf342e1
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270PH/09 Installed PCRE release 7.0.
271
273f34d0
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272PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
273 run for batched SMTP input. It is now run at the start of every message
274 in the batch. While fixing this I discovered that the process information
275 (output by running exiwhat) was not always getting set for -bs and -bS
276 input. This is fixed, and it now also says "batched" for BSMTP.
277
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278PH/11 Added control=no_pipelining.
279
41c7c167
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280PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
281 patch, slightly modified), and move the expansion of helo_data till after
282 the connection is made in the smtp transport (so it can use these
283 values).
284
9c57cbc0
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285PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
286
f3f065bb
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287PH/14 Added log_selector = +pid.
288
047bdd8c
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289PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
290
0ce9abe6
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291PH/16 Add ${if forany and ${if forall.
292
0e22dfd1
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293PH/17 Added dsn_from option to vary the From: line in DSNs.
294
4c590bd1
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295PH/18 Flush SMTP output before performing a callout, unless control =
296 no_callout_flush is set.
297
09945f1e
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298PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
299 was true (the default) a successful delivery failed to delete the retry
300 item, thus causing premature timeout of the address. The bug is now
301 fixed.
302
c51b8e75
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303PH/20 Added hosts_avoid_pipelining to the smtp transport.
304
e28326d8
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305PH/21 Long custom messages for fakedefer and fakereject are now split up
306 into multiline reponses in the same way that messages for "deny" and
307 other ACL rejections are.
308
75b1493f
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309PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
310 with slight modification.
311
7c5214ec
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312PH/23 Applied sieve patches from the maintainer "tracking the latest notify
313 draft, changing the syntax and factoring some duplicate code".
314
4311097e
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315PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
316 for deliveries of the second and subsequent messages over the same SMTP
317 connection.
318
29f89cad
PH
319PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
320 ${reduce, with only minor "tidies".
321
5e687460
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322SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
323
c3611384
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324PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
325 expansion side effects.
326
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327PH/27 When a message times out after an over-quota error from an Exim-imposed
328 quota, the bounce message says "mailbox is full". This message was not
329 being given when it was a system quota that was exceeded. It now should
330 be the same.
331
0e20aff9
MH
332MH/03 Made $recipients available in local_scan(). local_scan() already has
333 better access to the recipient list through recipients_list[], but
334 $recipients can be useful in postmaster-provided expansion strings.
335
ca86f471
PH
336PH/28 The $smtp_command and $smtp_command_argument variables were not correct
337 in the case of a MAIL command with additional options following the
338 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
339 were accidentally chopped off.
340
a14e5636
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341PH/29 SMTP synchronization checks are implemented when a command is read -
342 there is a check that no more input is waiting when there shouldn't be
343 any. However, for some commands, a delay in an ACL can mean that it is
344 some time before the response is written. In this time, more input might
345 arrive, invalidly. So now there are extra checks after an ACL has run for
346 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
347 pipelining has not been advertised.
348
ec95d1a6
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349PH/30 MH's patch to allow iscntrl() characters to be list separators.
350
42855d71
PH
351PH/31 Unlike :fail:, a custom message specified with :defer: was not being
352 returned in the SMTP response when smtp_return_error_details was false.
353 This has been fixed.
354
57c2c631
PH
355PH/32 Change the Dovecot authenticator to use read() and write() on the socket
356 instead of the C I/O that was originally supplied, because problems were
357 reported on Solaris.
358
58c01c94
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359PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
360 Exim which did not show up earlier: it was assuming that a call to
361 SSL_CTX_set_info_callback() might give an error value. In fact, there is
362 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
363 was a macro that became an assignment, so it seemed to work. This has
364 changed to a proper function call with a void return, hence the compile
365 error. Exim's code has been fixed.
366
dee5a20a
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367PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
368 cpus.
369
d2ee6114
PH
370PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
371
b2d5182b
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372PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
373
79749a79
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374PH/37 If a message is not accepted after it has had an id assigned (e.g.
375 because it turns out to be too big or there is a timeout) there is no
3ce62588
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376 "Completed" line in the log. When some messages of this type were
377 selected by exigrep, they were listed as "not completed". Others were
378 picked up by some special patterns. I have improved the selection
379 criteria to be more general.
79749a79 380
c456d9bb
PH
381PH/38 The host_find_failed option in the manualroute router can now be set
382 to "ignore", to completely ignore a host whose IP address cannot be
383 found. If all hosts are ignored, the behaviour is controlled by the new
384 host_all_ignored option.
385
cd9868ec
PH
386PH/39 In a list of hosts for manualroute, if one item (either because of multi-
387 homing or because of multiple MX records with /mx) generated more than
388 one IP address, and the following item turned out to be the local host,
389 all the secondary addresses of the first item were incorrectly removed
390 from the list, along with the local host and any following hosts (which
391 is what is supposed to happen).
392
ebeaf996
PH
393PH/40 When Exim receives a message, it writes the login name, uid, and gid of
394 whoever called Exim into the -H file. In the case of the daemon it was
395 behaving confusingly. When first started, it used values for whoever
396 started the daemon, but after a SIGHUP it used the Exim user (because it
397 calls itself on a restart). I have changed the code so that it now always
398 uses the Exim user.
399
2679d413
PH
400PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
401 message are rejected with the same error (e.g. no authentication or bad
402 sender address), and a DATA command is nevertheless sent (as can happen
403 with PIPELINING or a stupid MUA), the error message that was given to the
404 RCPT commands is included in the rejection of the DATA command. This is
405 intended to be helpful for MUAs that show only the final error to their
406 users.
407
84024b72
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408PH/42 Another patch from the Sieve maintainer.
409
8005d38e
SC
410SC/02 Eximstats - Differentiate between permanent and temporary rejects.
411 Eximstats - Fixed some broken HTML links and added missing column headers
412 (Jez Hancock).
413 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
414 columns for Rejects, Temp Rejects, Ham, and Spam rows.
415
3298c6c6
SC
416SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
417
a43a27c5
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418PH/43 Yet another patch from the Sieve maintainer.
419
58eb016e 420PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
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421 the response to the final '.' that terminates a message, but only in the
422 case where the client has not sent further data following the '.'
423 (unfortunately, this is allowed). However, in many cases there won't be
424 any further data because there won't be any more messages to send. A call
425 to select() can be used: if it shows that the input is "ready", there is
426 either input waiting, or the socket has been closed. An attempt to read
427 the next input character can distinguish the two cases. Previously, Exim
58eb016e 428 would have sent an OK response which the client would never have see.
563b63fa
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429 This could lead to message repetition. This fix should cure that, at
430 least in a lot of common cases.
58eb016e 431
b43a74ea
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432PH/45 Do not advertise STARTTLS in response to HELP unless it would be
433 advertised in response to EHLO.
434
b4ed4da0 435
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436Exim version 4.66
437-----------------
438
439PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
440 fixed by 4.65/MH/01 (is this a record?) are fixed:
441
442 (i) An empty string was always treated as zero by the numeric comparison
443 operators. This behaviour has been restored.
444
445 (ii) It is documented that the numeric comparison operators always treat
446 their arguments as decimal numbers. This was broken in that numbers
447 starting with 0 were being interpreted as octal.
448
449 While fixing these problems I realized that there was another issue that
450 hadn't been noticed. Values of message_size_limit (both the global option
451 and the transport option) were treated as octal if they started with 0.
452 The documentation was vague. These values are now always treated as
453 decimal, and I will make that clear in the documentation.
454
455
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456Exim version 4.65
457-----------------
458
459TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
460 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
461 versions. (#438)
462
d6066548
MH
463MH/01 Don't check that the operands of numeric comparison operators are
464 integers when their expansion is in "skipping" mode (fixes bug
465 introduced by 4.64-PH/07).
466
4362ff0d
PH
467PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
468 child addresses, Exim now panics and dies. Previously, because the count
469 is held in a short int, deliveries were likely to be lost. As such a
470 large number of recipients for a single message is ridiculous
471 (performance will be very, very poor), I have chosen to impose a limit
472 rather than extend the field.
473
93cfa765 474
944e9e9c
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475Exim version 4.64
476-----------------
aa41d2de 477
21d74bd9
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478TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
479 leftover -K file (the existence of which was triggered by #402).
480 While we were at it, introduced process PID as part of the -K
481 filename. This should rule out race conditions when creating
482 these files.
483
484TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
485 processing considerably. Previous code took too long for large mails,
486 triggering a timeout which in turn triggers #401.
487
488TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
489 in the DK code in transports.c. sendfile() is not really portable,
490 hence the _LINUX specificness.
944e9e9c
TF
491
492TF/01 In the add_headers option to the mail command in an Exim filter,
493 there was a bug that Exim would claim a syntax error in any
494 header after the first one which had an odd number of characters
495 in the field name.
496
2b1c6e3a
PH
497PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
498 callout verification, Exim cached a "reject" for the entire domain. This
499 is correct for most verifications, but it is not correct for a recipient
500 verification with use_sender or use_postmaster set, because in that case
501 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
502 case of MAIL FROM:<> rejection from other early rejections (e.g.
503 rejection of HELO). When verifying a recipient using a non-null MAIL
504 address, the cache is ignored if it shows MAIL FROM:<> rejection.
505 Whatever the result of the callout, the value of the domain cache is
506 left unchanged (for any other kind of callout, getting as far as trying
507 RCPT means that the domain itself is ok).
508
1f872c80
PH
509PH/02 Tidied a number of unused variable and signed/unsigned warnings that
510 gcc 4.1.1 threw up.
511
512PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
513 manifest itself as EPIPE rather than ECONNECT. When tidying away a
514 session, the daemon ignores ECONNECT errors and logs others; it now
515 ignores EPIPE as well.
516
d203e649
PH
517PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
518 (quoted-printable decoding).
519
cc2ed8f7 520PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 521 later the small subsequent patch to fix an introduced bug.
f951fd57 522
ddfcd446
PH
523PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
524
d45b1de8
PH
525PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
526
527PH/08 An error is now given if message_size_limit is specified negative.
528
38a0a95f 529PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 530 to be given (somewhat) arbitrary names.
38a0a95f 531
a2405d83
JJ
532JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
533 in 4.64-PH/09.
534
535JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
536 miscellaneous code fixes
537
6ea85e9a
PH
538PH/10 Added the log_reject_target ACL modifier to specify where to log
539 rejections.
540
26da7e20
PH
541PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
542 hostname. This is wrong, because it relates to the incoming message (and
543 probably the interface on which it is arriving) and not to the outgoing
544 callout (which could be using a different interface). This has been
545 changed to use the value of the helo_data option from the smtp transport
546 instead - this is what is used when a message is actually being sent. If
547 there is no remote transport (possible with a router that sets up host
548 addresses), $smtp_active_hostname is used.
6ea85e9a 549
14aa5a05 550PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 551 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
552 (a) The code assumed that strncpy() returns a negative number on buffer
553 overflow, which isn't the case. Replaced with Exim's string_format()
554 function.
555 (b) There were several signed/unsigned issues. I just did the minimum
556 hacking in of casts. There is scope for a larger refactoring.
557 (c) The code used strcasecmp() which is not a standard C function.
558 Replaced with Exim's strcmpic() function.
559 (d) The code set only $1; it now sets $auth1 as well.
560 (e) A simple test gave the error "authentication client didn't specify
561 service in request". It would seem that Dovecot has changed its
562 interface. Fortunately there's a specification; I followed it and
563 changed what the client sends and it appears to be working now.
564
ff75a1f7
PH
565PH/13 Added $message_headers_raw to provide the headers without RFC 2047
566 decoding.
567
e6f6568e
PH
568PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
569 address A is aliased to B and C, where B exists and C does not. Without
570 -v the output is "A verified" because verification stops after a
571 successful redirection if more than one address is generated. However,
572 with -v the child addresses are also verified. Exim was outputting "A
573 failed to verify" and then showing the successful verification for C,
574 with its parentage. It now outputs "B failed to verify", showing B's
575 parentage before showing the successful verification of C.
576
d6f6e0dc
PH
577PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
578 look up a TXT record in a specific list after matching in a combined
579 list.
580
322050c2
PH
581PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
582 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
583 they consult the DNS. I had assumed they would set it the way they
584 wanted; and indeed my experiments on Linux seem to show that in some
585 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
586 To be on the safe side, however, I have now made the interface to
587 host_find_byname() similar to host_find_bydns(), with an argument
588 containing the DNS resolver options. The host_find_byname() function now
589 sets these options at its start, just as host_find_bydns() does. The smtp
590 transport options dns_qualify_single and dns_search_parents are passed to
591 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
592 of host_find_byname() use the default settings of RES_DEFNAMES
593 (qualify_single) but not RES_DNSRCH (search_parents).
594
08955dd3
PH
595PH/17 Applied (a modified version of) Nico Erfurth's patch to make
596 spool_read_header() do less string testing, by means of a preliminary
597 switch on the second character of optional "-foo" lines. (This is
598 overdue, caused by the large number of possibilities that now exist.
599 Originally there were few.) While I was there, I also converted the
600 str(n)cmp tests so they don't re-test the leading "-" and the first
601 character, in the hope this might squeeze out yet more improvement.
602
1eccaa59
PH
603PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
604 flag allowing group syntax was set by the header_syntax check but not
605 turned off, possible causing trouble later; (2) The flag was not being
606 set at all for the header_verify test, causing "group"-style headers to
607 be rejected. I have now set it in this case, and also caused header_
608 verify to ignore an empty address taken from a group. While doing this, I
609 came across some other cases where the code for allowing group syntax
610 while scanning a header line wasn't quite right (mostly, not resetting
611 the flag correctly in the right place). These bugs could have caused
612 trouble for malformed header lines. I hope it is now all correct.
613
602e59e5
PH
614PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
615 with the "reply" argument non-NULL. The code, however (which originally
616 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
617 but it didn't always do it. This confused somebody who was copying the
618 code for some other use. I have removed all the tests.
619
411ef850
PH
620PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
621 feature that was used to support insecure browsers during the U.S. crypto
622 embargo. It requires special client support, and Exim is probably the
623 only MTA that supported it -- and would never use it because real RSA is
624 always available. This code has been removed, because it had the bad
625 effect of slowing Exim down by computing (never used) parameters for the
626 RSA_EXPORT functionality.
627
7befa435
PH
628PH/21 On the advice of Timo Sirainen, added a check to the dovecot
629 authenticator to fail if there's a tab character in the incoming data
630 (there should never be unless someone is messing about, as it's supposed
631 to be base64-encoded). Also added, on Timo's advice, the "secured" option
632 if the connection is using TLS or if the remote IP is the same as the
633 local IP, and the "valid-client-cert option" if a client certificate has
634 been verified.
635
48da4259 636PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
637 authenticators. This can be used for authorization after authentication
638 succeeds. (In the case of plaintext, it servers for both authentication
639 and authorization.)
640
48da4259
PH
641PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
642 if any retry times were supplied.
643
d1d5595c
PH
644PH/24 Exim crashed if verify=helo was activated during an incoming -bs
645 connection, where there is no client IP address to check. In this
646 situation, the verify now always succeeds.
647
0ef732d9
PH
648PH/25 Applied John Jetmore's -Mset patch.
649
328895cc
PH
650PH/26 Added -bem to be like -Mset, but loading a message from a file.
651
fd700877
PH
652PH/27 In a string expansion for a processed (not raw) header when multiple
653 headers of the same name were present, leading whitespace was being
654 removed from all of them, but trailing whitespace was being removed only
655 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
656 before concatenation. Completely empty headers in a concatenation (as
657 before) are ignored.
fd700877 658
8dce1a6f
PH
659PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
660 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
661
17af4a17
PH
662PH/29 [Removed. This was a change that I later backed out, and forgot to
663 correct the ChangeLog entry (that I had efficiently created) before
664 committing the later change.]
f6c332bd
PH
665
666PH/30 Exim was sometimes attempting to deliver messages that had suffered
667 address errors (4xx response to RCPT) over the same connection as other
668 messages routed to the same hosts. Such deliveries are always "forced",
669 so retry times are not inspected. This resulted in far too many retries
670 for the affected addresses. The effect occurred only when there were more
671 hosts than the hosts_max_try setting in the smtp transport when it had
672 the 4xx errors. Those hosts that it had tried were not added to the list
673 of hosts for which the message was waiting, so if all were tried, there
674 was no problem. Two fixes have been applied:
675
676 (i) If there are any address or message errors in an SMTP delivery, none
677 of the hosts (tried or untried) are now added to the list of hosts
678 for which the message is waiting, so the message should not be a
679 candidate for sending over the same connection that was used for a
680 successful delivery of some other message. This seems entirely
681 reasonable: after all the message is NOT "waiting for some host".
682 This is so "obvious" that I'm not sure why it wasn't done
683 previously. Hope I haven't missed anything, but it can't do any
684 harm, as the worst effect is to miss an optimization.
685
686 (ii) If, despite (i), such a delivery is accidentally attempted, the
687 routing retry time is respected, so at least it doesn't keep
688 hammering the server.
689
c1114884
PH
690PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
691 in ${readsocket because some servers need this prod.
692
7a0743eb
PH
693PH/32 Added some extra debug output when updating a wait-xxx database.
694
0d85fa3f
PH
695PH/33 The hint "could be header name not terminated by colon", which has been
696 given for certain expansion errors for a long time, was not being given
697 for the ${if def:h_colon_omitted{... case.
698
1bf43b78
PH
699PH/34 The spec says: "With one important exception, whenever a domain list is
700 being scanned, $domain contains the subject domain." There was at least
701 one case where this was not true.
702
520de300
PH
703PH/35 The error "getsockname() failed: connection reset by peer" was being
704 written to the panic log as well as the main log, but it isn't really
705 panic-worthy as it just means the connection died rather early on. I have
706 removed the panic log writing for the ECONNRESET error when getsockname()
707 fails.
708
48c7f9e2
PH
709PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
710 runs only) independently of the message's sender address. This meant
711 that, if the 4xx error was in fact related to the sender, a different
712 message to the same recipient with a different sender could confuse
713 things. In particualar, this can happen when sending to a greylisting
714 server, but other circumstances could also provoke similar problems.
715 I have changed the default so that the retry time for these errors is now
716 based a combination of the sender and recipient addresses. This change
717 can be overridden by setting address_retry_include_sender=false in the
718 smtp transport.
719
99ea1c86
PH
720PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
721 remote server are returned as part of bounce messages. This was not
722 happening for LMTP over a pipe (the lmtp transport), but now it is the
723 same for both kinds of LMTP.
724
a2042e78
PH
725PH/38 Despite being documented as not happening, Exim was rewriting addresses
726 in header lines that were in fact CNAMEs. This is no longer the case.
727
4fbcfc2e
PH
728PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
729 and queue runs started by the daemon processed all messages. This has
730 been fixed so that -R and -S can now usefully be given with -q<time>.
731
aa41d2de
PH
732PH/40 Import PCRE release 6.7 (fixes some bugs).
733
af561417
PH
734PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
735
3cc66b45
PH
736PH/42 Give an error if -q is specified more than once.
737
194cc0e4
PH
738PH/43 Renamed the variables $interface_address and $interface_port as
739 $received_ip_address and $received_port, to make it clear that these
740 values apply to message reception, and not to the outgoing interface when
741 a message is delivered. (The old names remain recognized, of course.)
742
a401ddaa
PH
743PH/44 There was no timeout on the connect() call when using a Unix domain
744 socket in the ${readsocket expansion. There now is.
745
4e88a19f
PH
746PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
747 be meaningful with "accept".
748
d7d7b289
SC
749SC/01 Eximstats V1.43
750 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
751
752SC/02 Eximstats V1.44
753 Use a glob alias rather than an array ref in the generated
754 parser. This improves both readability and performance.
755
756SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
757 Collect SpamAssassin and rejection statistics.
758 Don't display local sender or destination tables unless
759 there is data to show.
760 Added average volumes into the top table text output.
761
762SC/04 Eximstats V1.46
763 Collect data on the number of addresses (recipients)
764 as well as the number of messages.
765
766SC/05 Eximstats V1.47
767 Added 'Message too big' to the list of mail rejection
768 reasons (thanks to Marco Gaiarin).
769
770SC/06 Eximstats V1.48
771 Mainlog lines which have GMT offsets and are too short to
772 have a flag are now skipped.
773
774SC/07 Eximstats V1.49 (Alain Williams)
775 Added the -emptyok flag.
776
777SC/08 Eximstats V1.50
778 Fixes for obtaining the IP address from reject messages.
779
0ea2a468
JJ
780JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
781 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
782 whitesspace changes from 4.64-PH/27
783
784JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
785 match 4.64-PH/13
786
787JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
788 are found, allow negative numbers in numeric criteria)
789
790JJ/06 exipick.20061117.2, added new $message_body_missing variable
791
792JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
793 to match changes made in 4.64-PH/43
794
8a10f5a4
PH
795PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
796
30e18802
PH
797PH/47 Put in an explicit test for a DNS lookup of an address record where the
798 "domain" is actually an IP address, and force a failure. This locks out
799 those revolvers/nameservers that support "A-for-A" lookups, in
800 contravention of the specifications.
801
55728a4f
PH
802PH/48 When a host name was looked up from an IP address, and the subsequent
803 forward lookup of the name timed out, the host name was left in
804 $sender_host_name, contrary to the specification.
d7d7b289 805
d7837193
PH
806PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
807 restricted to single-key lookups, Exim was not diagnosing an error if
808 * or *@ was used with a query-style lookup.
809
87054a31
PH
810PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
811
ea2c01d2
MH
812MH/01 local_scan ABI version incremented to 1.1. It should have been updated
813 long ago, but noone interested enough thought of it. Let's just say that
814 the "1.1" means that there are some new functions that weren't there at
815 some point in the past.
816
e4fa6968
PH
817PH/51 Error processing for expansion failure of helo_data from an smtp
818 transport during callout processing was broken.
819
56f5d9bd
PH
820PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
821 tested/used via the -bh/-bhc/-bs options.
822
922e1c28
PH
823PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
824 bug, fixed in subsequent PCRE releases).
825
21eb6e72
PH
826PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
827 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
828
a0540757
PH
829PH/55 Check for a ridiculously long file name in exim_dbmbuild.
830
944e9e9c 831
478be7b0
SC
832Exim version 4.63
833-----------------
834
835SC/01 Use a glob alias rather than an array ref in eximstats generated
836 parser. This improves both readability and performance.
837
838SC/02 Collect SpamAssassin and rejection statistics in eximstats.
839 Don't display local sender or destination tables in eximstats unless
840 there is data to show.
841 Added average volumes into the eximstats top table text output.
842
843SC/03 Collect data on the number of addresses (recipients) as well
844 as the number of messages in eximstats.
845
2b965a65
TF
846TF/01 Correct an error in the documentation for the redirect router. Exim
847 does (usually) call initgroups() when daemonizing.
478be7b0 848
45b91596
PH
849TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
850 with consistent privilege compared to when running as a daemon.
478be7b0 851
c59f5781
TF
852TF/03 Note in the spec that $authenticated_id is not set for local
853 submissions from trusted users.
854
90fc3069
TF
855TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
856 Thanks to Dean Brooks <dean@iglou.com> for the patch.
857
6083aca0
TF
858TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
859 by adding some example configuration directives to the default
860 configuration file. A little bit of work is required to uncomment the
861 directives and define how usernames and passwords are checked, but
862 there is now a framework to start from.
863
765b530f
PH
864PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
865 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
866 without this. I don't know how relevant this is to other LDAP libraries.
867
4e167a8c
PH
868PH/02 Add the verb name to the "unknown ACL verb" error.
869
4608d683
PH
870PH/03 Magnus Holmgren's patch for filter_prepend_home.
871
b8dc3e4a
PH
872PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
873
5418e93b
PH
874PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
875 directory not expanded when it should be if an expanded home directory
876 was set for the address (which is overridden by the transport).
877
b4a9bda2
PH
878PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
879 libradius.
880
45b91596
PH
881PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
882 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
883 because it is too late at that time, and has no effect.
884
5547e2c5
PH
885PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
886 security issue with \' (bugzilla #107). I could not use the
887 PQescapeStringConn() function, because it needs a PGconn value as one of
888 its arguments.
889
dbcef0ea
PH
890PH/08 When testing addresses using -bt, indicate those final addresses that
891 are duplicates that would not cause an additional delivery. At least one
892 person was confused, thinking that -bt output corresponded to deliveries.
893 (Suppressing duplicates isn't a good idea as you lose the information
894 about possibly different redirections that led to the duplicates.)
895
25257489
PH
896PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
897 systems where poll() doesn't work, in particular OS X.
898
c816d124
PH
899PH/10 Added more information to debugging output for retry time not reached.
900
a9ccd69a
PH
901PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
902 operations in malware.c.
903
75fa1910
PH
904PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
905 signatures.
906
a7d7aa58
PH
907PH/13 If write_rejectlog was set false when logging was sent to syslog with
908 syslog_duplication set false, log lines that would normally be written
909 both the the main log and to the reject log were not written to syslog at
910 all.
911
42119b09
PH
912PH/14 In the default configuration, change the use of "message" in ACL warn
913 statements to "add_header".
914
41609df5
PH
915PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
916 not followed by a command (e.g. "seen endif").
917
a5bd321b
PH
918PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
919 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
920 latter.
921
e85a7ad5 922PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
923 so that it is now:
924
e85a7ad5
PH
925 ${if or { \
926 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
927 { match{$h_precedence:}{(?i)bulk|list|junk} } \
928 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
929 }{no}{yes}}
930
e85a7ad5
PH
931 The Auto-Submitted: and various List- headers are standardised, whereas I
932 don't think Precedence: ever was.
5dff5817 933
d8fe1c03
PH
934PH/18 Refactored debugging code in route_finduser() to show more information,
935 in particular, the error code if getpwnam() issues one.
936
16282d2b
PH
937PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
938 This is apparently needed in addition to the PH/07 change above to avoid
939 any possible encoding problems.
940
35d40a98
PH
941PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
942 but not after initializing Perl.
943
034d99ab
PH
944PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
945 output them only if debugging. By default they are written stderr,
946 apparently, which is not desirable.
947
6ec97b1b
PH
948PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
949 queries.
950
e22ca4ac
JJ
951JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
952 --not options
953
954JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
955
33d73e3b
PH
956PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
957 authenticated or an ident call has been made. Suppress the default
958 values for $authenticated_id and $authenticated_sender (but permit -oMai
959 and -oMas) when testing with -bh.
960
9ecb03f3
PH
961PH/24 Re-jigged the order of the tests in the default configuration so that the
962 tests for valid domains and recipients precede the DNS black list and CSA
963 tests, on the grounds that those ones are more expensive.
964
084efe8d
PH
965PH/25 Exim was not testing for a space following SMTP commands such as EHLO
966 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
967 This bug exists in every version of Exim that I still have, right back to
968 0.12.
969
366fc9f0
PH
970PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
971 However, an attempt to turn on case-sensitivity in a regex key by
972 including (?-i) didn't work because the subject string was already
973 lowercased, and the effects were non-intuitive. It turns out that a
974 one-line patch can be used to allow (?-i) to work as expected.
975
c59f5781 976
c887c79e
TF
977Exim version 4.62
978-----------------
979
980TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
981 other effects) broke the use of negated acl sub-conditions.
982
1cce3af8
PH
983PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
984 patch).
985
afb3eaaf
PH
986PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
987 "Deny" causes Exim to reject the incoming connection with a 554 error.
988 Unfortunately, if there is a major crisis, such as a disk failure,
989 tcp-wrappers gives "deny", whereas what one would like would be some
990 kind of temporary error. A kludge has been added to help with this.
991 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
992 554 error is used if errno is still zero or contains ENOENT (which occurs
993 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
994 451 error is used.
995
e173618b
PH
996PH/03 Add -lutil to the default FreeBSD LIBS setting.
997
dd16e114
PH
998PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
999 errors. Otherwise a message that provokes a temporary error (when other
1000 messages do not) can cause a whole host to time out.
1001
f7fd3850
PH
1002PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1003 addresses were routed directly to files or pipes from a redirect router.
1004 File deliveries just didn't batch; pipe deliveries might have suffered
1005 odd errors.
1006
d87df92c
PH
1007PH/06 A failure to get a lock for a hints database would erroneously always say
1008 "Failed to get write lock", even when it was really a read lock.
1009
7e9f683d
PH
1010PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1011 of 0600. This has been changed to use the value of the lockfile_mode
1012 option (which defaults to 0600).
1013
bfad5236
PH
1014PH/08 Applied small patch from the Sieve maintainer.
1015
01c490df
PH
1016PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1017 folder from quota calculations, a direct delivery into this folder messed
1018 up the contents of the maildirsize file. This was because the regex was
1019 used only to exclude .Trash (or whatever) when the size of the mailbox
1020 was calculated. There was no check that a delivery was happening into an
1021 excluded directory. This bug has been fixed by ignoring all quota
1022 processing for deliveries into excluded directories.
1023
d6629cdc
PH
1024PH/10 Added the maildirfolder_create_regex option to appendfile.
1025
1cce3af8 1026
214e2000
PH
1027Exim version 4.61
1028-----------------
1029
1030PH/01 The code for finding all the local interface addresses on a FreeBSD
1031 system running IPv6 was broken. This may well have applied to all BSD
1032 systems, as well as to others that have similar system calls. The broken
1033 code found IPv4 interfaces correctly, but gave incorrect values for the
1034 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1035 that it would not match correctly against @[] and not recognize the IPv6
1036 addresses as local.
1037
f9daeae0
PH
1038PH/02 The ipliteral router was not recognizing addresses of the form user@
1039 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1040
7e66e54d
PH
1041PH/03 Added disable_ipv6.
1042
c8ea1597
PH
1043PH/04 Changed $reply_address to use the raw form of the headers instead of the
1044 decoded form, because it is most often used to construct To: headers
1045 lines in autoreplies, and the decoded form may well be syntactically
1046 invalid. However, $reply_address has leading white space removed, and all
1047 newlines turned into spaces so that the autoreply transport does not
1048 grumble.
1049
911f6fde
PH
1050PH/05 If group was specified without a user on a router, and no group or user
1051 was specified on a transport, the group from the router was ignored.
1052
47ca6d6c
PH
1053PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1054 for visible compile-time settings that can be used to change these
1055 numbers, for those that want even more. Backwards compatibility with old
1056 spool files has been maintained. However, going back to a previous Exim
1057 release will lost any variables that are in spool files.
1058
ed0e9820
PH
1059PH/07 Two small changes when running in the test harness: increase delay when
1060 passing a TCP/IP connection to a new process, in case the original
1061 process has to generate a bounce, and remove special handling of
1062 127.0.0.2 (sic), which is no longer necessary.
1063
eff37e47
PH
1064PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1065 be the same on different OS.
1066
1921d2ea
PH
1067PH/09 Moved a debug statement in filter processing to avoid a race problem when
1068 testing.
1069
b3f69ca8
JJ
1070JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1071 whether --show-vars was specified or not
1072
1073JJ/02 exipick: Added support for new ACL variable spool format introduced
1074 in 4.61-PH/06
1075
424a1c63
PH
1076PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1077 syntactically invalid From: or Reply-to: line, and a filter used this to
1078 generate an autoreply, and therefore failed to obtain an address for the
1079 autoreply, Exim could try to deliver to a non-existent relative file
1080 name, causing unrelated and misleading errors. What now happens is that
1081 it logs this as a hard delivery error, but does not attempt to create a
1082 bounce message.
1083
7a100415
PH
1084PH/11 The exinext utility has a -C option for testing purposes, but although
1085 the given file was scanned by exinext itself; it wasn't being passed on
1086 when Exim was called.
1087
19b9dc85
PH
1088PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1089 an end-of-file indication when reading a command response.
1090
309bd837
PH
1091PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1092 compiled. In many other places in Exim, IPv6 addresses are always
1093 recognized, so I have changed this. It also means that IPv4 domain
1094 literals of the form [IPV4:n.n.n.n] are now always recognized.
1095
59e82a2a
PH
1096PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1097 used if the router is not running as root, for example, when verifying at
1098 ACL time, or when using -bh. The debugging output from this situation was
1099 non-existent - all you got was a failure to exec. I have made two
1100 changes:
1101
1102 (a) Failures to set uid/gid, the current directory, or a process leader
1103 in a subprocess such as that created by queryprogram now generate
1104 suitable debugging ouput when -d is set.
1105
1106 (b) The queryprogram router detects when it is not running as root,
1107 outputs suitable debugging information if -d is set, and then runs
1108 the subprocess without attempting to change uid/gid.
1109
9edc04ce
PH
1110PH/15 Minor change to Makefile for building test_host (undocumented testing
1111 feature).
1112
1349e1e5
PH
1113PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1114 additional section of a DNS packet that returns MX or SRV records.
1115 Instead, it always explicitly searches for A/AAAA records. This avoids
1116 major problems that occur when a DNS server includes only records of one
1117 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1118 fixed another bug: if SRV records were looked up and the corresponding
1119 address records were *not* found in the additional section, the port
1120 values from the SRV records were lost.
1121
ea49d0e1
PH
1122PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1123 using the correct key (the original address) when searching the retry
1124 rules in order to find which one to use for generating the retry hint.
1125
064a94c9
PH
1126PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1127 adding the default one. Similarly, if it contains a Reply-To: header, the
1128 errors_reply_to option, if set, is not used.
1129
727071f8
PH
1130PH/19 When calculating a retry time, Exim used to measure the "time since
1131 failure" by looking at the "first failed" field in the retry record. Now
1132 it does not use this if it is later than than the arrival time of the
1133 message. Instead it uses the arrival time. This makes for better
1134 behaviour in cases where some deliveries succeed, thus re-setting the
1135 "first failed" field. An example is a quota failure for a huge message
1136 when small messages continue to be delivered. Without this change, the
1137 "time since failure" will always be short, possible causing more frequent
1138 delivery attempts for the huge message than are intended.
dd16e114 1139 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1140
f78eb7c6
PH
1141PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1142 $1, $2, $3) because the numerical variables can be reset during some
1143 expansion items (e.g. "match"), thereby losing the authentication data.
1144
21c28500
PH
1145PH/21 Make -bV show the size of off_t variables so that the test suite can
1146 decide whether to run tests for quotas > 2G.
1147
1148PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1149 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1150 filecount value is greater than 2G or if a quota value is greater than 2G
1151 on a system where the size of off_t is not greater than 4, a panic error
1152 is given.
1153
1688f43b
PH
1154PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1155 never match. The debug and -bh output now contains an explicit error
1156 message indicating a malformed IPv4 address or mask.
1157
1158PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1159 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1160 PH/23 above applies.
1161
9675b384
PH
1162PH/25 Do not write to syslog when running in the test harness. The only
1163 occasion when this arises is a failure to open the main or panic logs
1164 (for which there is an explicit test).
1165
6a3f1455
PH
1166PH/26 Added the /no_tell option to "control=freeze".
1167
dac79d3e
PH
1168PH/27 If a host name lookup failed very early in a connection, for example, if
1169 the IP address matched host_lookup and the reverse lookup yielded a name
1170 that did not have a forward lookup, an error message of the form "no IP
1171 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1172 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1173
5977a0b3
PH
1174PH/28 An enabling patch from MH: add new function child_open_exim2() which
1175 allows the sender and the authenticated sender to be set when
1176 submitting a message from within Exim. Since child_open_exim() is
1177 documented for local_scan(), the new function should be too.
1178
c91535f3
PH
1179PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1180 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1181 results in an empty string is now treated as unset.
1182
0d46a8c8
PH
1183PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1184
278c6e6c
PH
1185PH/31 Added sender_verify_fail logging option.
1186
2cbb4081
PH
1187PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1188 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1189 tidied the source and removed it altogether.
1190
3eef829e
PH
1191PH/33 When a queue run was abandoned because the load average was too high, a
1192 log line was always written; now it is written only if the queue_run log
1193 selector is set. In addition, the log line for abandonment now contains
1194 information about the queue run such as the pid. This is always present
1195 in "start" and "stop" lines but was omitted from the "abandon" line.
1196
1ab95fa6
PH
1197PH/34 Omit spaces between a header name and the colon in the error message that
1198 is given when verify = headers_syntax fails (if there are lots of them,
1199 the message gets confusing).
1200
230205fc
PH
1201PH/35 Change the default for dns_check_names_pattern to allow slashes within
1202 names, as there are now some PTR records that contain slashes. This check
1203 is only to protect against broken name servers that fall over on strange
1204 characters, so the fact that it applies to all lookups doesn't matter.
1205
75e0e026
PH
1206PH/36 Now that the new test suite is complete, we can remove some of the
1207 special code in Exim that was needed for the old test suite. For example,
1208 sorting DNS records because real resolvers return them in an arbitrary
1209 order. The new test suite's fake resolver always returns records in the
1210 same order.
1211
1212PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1213 bounces) except when queue_only is set, to avoid logging races between
1214 the different processes.
1215
145396a6
PH
1216PH/38 Panic-die if .include specifies a non-absolute path.
1217
3cd34f13
PH
1218PH/39 A tweak to the "H" retry rule from its user.
1219
11121d3d
JJ
1220JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1221 a label. They prevented compilation on older perls.
1222
1223JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1224 a warning to be raised on newish perls.
1225
1226JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1227 on queue. Changes to match documented behaviour of showing count of
1228 messages matching specified criteria.
1229
8def5aaf
PH
1230PH/40 Changed the default ident timeout from 30s to 5s.
1231
929ba01c
PH
1232PH/41 Added support for the use of login_cap features, on those BSD systems
1233 that have them, for controlling the resources used by pipe deliveries.
1234
2632889e
PH
1235PH/42 The content-scanning code uses fopen() to create files in which to put
1236 message data. Previously it was not paying any attention to the mode of
1237 the files. Exim runs with umask(0) because the rest of the code creates
1238 files with open(), and sets the required mode explicitly. Thus, these
1239 files were ending up world-writeable. This was not a big issue, because,
1240 being within the spool directory, they were not world-accessible. I have
1241 created a function called modefopen, which takes an additional mode
1242 argument. It sets umask(777), creates the file, chmods it to the required
1243 mode, then resets the umask. All the relevant calls to fopen() in the
1244 content scanning code have been changed to use this function.
1245
944a9c55
PH
1246PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1247 to 24 hours. This avoids potential overflow problems when processing G
1248 and H retry rules. I suspect nobody ever tinkers with this value.
1249
4a23603b
PH
1250PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1251
4730f942
PH
1252PH/45 When the plaintext authenticator is running as a client, the server's
1253 challenges are checked to ensure they are valid base64 strings. By
1254 default, the authentication attempt is cancelled if an invalid string is
1255 received. Setting client_ignore_invalid_base64 true ignores these errors.
1256 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1257 they are received. Thus, the responses can be made to depend on the
1258 challenges. If an invalid string is ignored, an empty string is placed in
1259 the variable.
1260
30dba1e6
PH
1261PH/46 Messages that are created by the autoreply transport now contains a
1262 References: header, in accordance with RFCs 2822 and 3834.
1263
382afc6b
PH
1264PH/47 Added authenticated_sender_force to the smtp transport.
1265
a86229cf
PH
1266PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1267
50c99ba6
PH
1268PH/49 Installed latest patch from the Sieve maintainer.
1269
d35e429d
PH
1270PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1271 was also set, the appendfile transport was unnecessarily scanning a
1272 directory of message files (e.g. for maildir delivery) to find the count
1273 of files (along with the size), even though it did not need this
1274 information. It now does the scan only if it needs to find either the
1275 size of the count of files.
1276
f90d018c
PH
1277PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1278
75def545
PH
1279PH/52 Two bugs concerned with error handling when the smtp transport is
1280 used in LMTP mode:
1281
1282 (i) Exim was not creating retry information for temporary errors given
1283 for individual recipients after the DATA command when the smtp transport
1284 was used in LMTP mode. This meant that they could be retried too
1285 frequently, and not timed out correctly.
1286
1287 (ii) Exim was setting the flag that allows error details to be returned
1288 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1289 recipients that were returned after the DATA command.
1290
1291PH/53 This is related to PH/52, but is more general: for any failing address,
1292 when detailed error information was permitted to be returned to the
1293 sender, but the error was temporary, then after the final timeout, only
1294 "retry timeout exceeded" was returned. Now it returns the full error as
1295 well as "retry timeout exceeded".
1296
c46782ef
PH
1297PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1298 do this, and (what is worse) MTAs that accept it.
1299
71fafd95
PH
1300PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1301 will now be deprecated.
1302
2c5db4fd
PH
1303PH/56 New os.c-cygwin from the Cygwin maintainer.
1304
9cf6b11a
JJ
1305JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1306 formats (previously only available in exim formats via -bpr, -bpru,
1307 and -bpra. Now also available in native and exiqgrep formats)
1308
1309JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1310 with very large, slow to parse queues
1311
1312JJ/08 exipick: added ! as generic prefix to negate any criteria format
1313
1314JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1315
898d150f
PH
1316PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1317 responses to authentication challenges, though it was showing the
1318 challenges; (ii) I've removed the CR characters from the debug output for
1319 SMTP output lines.
1320
46218253
PH
1321PH/58 Allow for the insertion of a newline as well as a space when a string
1322 is turned into more than one encoded-word during RFC 2047 encoding. The
1323 Sieve code now uses this.
1324
e97957bc
PH
1325PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1326 data_4xx, lost_connection, tls_required.
1327
81e509d7
PH
1328PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1329 message was being sent as an SMTP response.
1330
3d240ff7
PH
1331PH/61 Add -l and -k options to exicyclog.
1332
b37c4101
PH
1333PH/62 When verifying, if an address was redirected to one new address, so that
1334 verification continued, and the new address failed or deferred after
1335 having set something in $address_data, the value of $address_data was not
1336 passed back to the ACL. This was different to the case when no
1337 redirection occurred. The value is now passed back in both cases.
1338
79378e0f
PH
1339PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1340 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1341 use login_cap.h, so on its own it isn't the distinguishing feature. The
1342 new name refers directly to the setclassresources() function.
1343
e49c7bb4
PH
1344PH/65 Added configuration files for NetBSD3.
1345
d114ec46
PH
1346PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1347
f3d7df6c
PH
1348PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1349 is preferred over IPv4.
1350
715ab376
PH
1351PH/68 The bounce_return_message and bounce_return_body options were not being
1352 honoured for bounces generated during the reception of non-SMTP messages.
1353 In particular, this applied to messages rejected by the ACL. This bug has
1354 been fixed. However, if bounce_return_message is true and bounce_return_
1355 body is false, the headers that are returned for a non-SMTP message
1356 include only those that have been read before the error was detected.
1357 (In the case of an ACL rejection, they have all been read.)
1358
6b31b150
PH
1359PH/69 The HTML version of the specification is now built in a directory called
1360 spec_html instead of spec.html, because the latter looks like a path with
1361 a MIME-type, and this confuses some software.
1362
1363PH/70 Catch two compiler warnings in sieve.c.
1364
d515a917
PH
1365PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1366 function verify_get_ident() calls ip_connect() to connect a socket, but
1367 if the "connect()" function timed out, ip_connect() used to close the
1368 socket. However, verify_get_ident() also closes the socket later, and in
1369 between Exim writes to the log, which may get opened at this point. When
1370 the socket was closed in ip_connect(), the log could get the same file
1371 descriptor number as the socket. This naturally causes chaos. The fix is
1372 not to close the socket in ip_connect(); the socket should be closed by
1373 the function that creates it. There was only one place in the code where
1374 this was missing, in the iplookup router, which I don't think anybody now
1375 uses, but I've fixed it anyway.
1376
9b8fadde
PH
1377PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1378 well as to direct DNS lookups. Otherwise the handling of names in host
1379 lists is inconsistent and therefore confusing.
1380
214e2000 1381
5de37277
PH
1382Exim version 4.60
1383-----------------
1384
cc38ddbf
PH
1385PH/01 Two changes to the default runtime configuration:
1386
1387 (1) Move the checks for relay_from_hosts and authenticated clients from
1388 after to before the (commented out) DNS black list checks.
1389
1390 (2) Add control=submission to the relay_from_hosts and authenticated
1391 clients checks, on the grounds that messages accepted by these
1392 statements are most likely to be submissions.
5de37277 1393
72fdd6ae
PH
1394PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1395
1396 (1) Generate an error if the third argument for the ${prvs expansion is
1397 not a single digit.
1398
1399 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1400 string.
1401
1402 (3) Reset the variables that are obtained from the first argument of
1403 ${prvscheck and used in the second argument before leaving the code,
1404 because their memory is reclaimed, so using them afterwards may do
1405 silly things.
1406
1407 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1408 one (it's much easier than Tom thought :-).
1409
1410 (5) Because of (4), we can now allow for the use of $prvscheck_result
1411 inside the third argument.
cb9328de 1412
cb741023
PH
1413PH/03 For some reason, the default setting of PATH when running a command from
1414 a pipe transport was just "/usr/bin". I have changed it to
1415 "/bin:/usr/bin".
1416
f174f16e
PH
1417PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1418 anything to be listed in the output from -bV.
b2f5a032 1419
c25242d7
PH
1420PH/05 When a filter generated an autoreply, the entire To: header line was
1421 quoted in the delivery log line, like this:
1422
1423 => >A.N.Other <ano@some.domain> <original@ddress> ...
1424
1425 This has been changed so that it extracts the operative address. There
1426 may be more than one such address. If so, they are comma-separated, like
1427 this:
1428
1429 => >ano@some.domain,ona@other.domain <original@ddress> ...
1430
82c19f95
PH
1431PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1432 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1433 not being looked up in the rDNS to get a host name, Exim was showing the
1434 IP address twice in Received: lines, even though the IP addresses were
1435 identical. For example:
1436
1437 Received: from [1.2.3.4] (helo=[1.2.3.4])
1438
1439 However, if the real host name was known, it was omitting the HELO data
1440 if it matched the actual IP address. This has been tidied up so that it
1441 doesn't show the same IP address twice.
1442
d7ffbc12
PH
1443PH/07 When both +timestamp and +memory debugging was on, the value given by
1444 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1445 called by the debug printing, thereby overwriting the timestamp buffer.
1446 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1447
9f526266
PH
1448PH/08 When the original message was included in an autoreply transport, it
1449 always said "this is a copy of the message, including all the headers",
1450 even if body_only or headers_only was set. It now gives an appropriate
1451 message.
1452
87fcc8b9
PH
1453PH/09 Applied a patch from the Sieve maintainer which:
1454
1455 o fixes some comments
1456 o adds the (disabled) notify extension core
1457 o adds some debug output for the result of if/elsif tests
1458 o points to the current vacation draft in the documentation
1459 and documents the missing references header update
1460
1461 and most important:
1462
1463 o fixes a bug in processing the envelope test (when testing
1464 multiple envelope elements, the last element determinted the
1465 result)
1466
456682f5
PH
1467PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1468 Electronic Mail") by including:
1469
1470 Auto-submitted: auto-generated
1471
1472 in the messages that it generates (bounce messages and others, such as
1473 warnings). In the case of bounce messages for non-SMTP mesages, there was
1474 also a typo: it was using "Auto_submitted" (underscore instead of
1475 hyphen). Since every message generated by Exim is necessarily in response
1476 to another message, thes have all been changed to:
1477
1478 Auto-Submitted: auto-replied
1479
1480 in accordance with these statements in the RFC:
1481
1482 The auto-replied keyword:
1483
1484 - SHOULD be used on messages sent in direct response to another
1485 message by an automatic process,
1486
1487 - MUST NOT be used on manually-generated messages,
1488
1489 - MAY be used on Delivery Status Notifications (DSNs) and Message
1490 Disposition Notifications (MDNs),
1491
1492 - MUST NOT be used on messages generated by automatic or periodic
1493 processes, except for messages which are automatic responses to
1494 other messages.
1495
3e46c1aa
PH
1496PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1497 to the default Received: header definition.
456682f5 1498
49826d12
PH
1499PH/12 Added log selector acl_warn_skipped (default on).
1500
eba0c039
PH
1501PH/13 After a successful wildlsearch lookup, discard the values of numeric
1502 variables because (a) they are in the wrong storage pool and (b) even if
1503 they were copied, it wouldn't work properly because of the caching.
1504
a0d6ba8a
PH
1505PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1506 checking when decoding. Apparently there are clients that generate
1507 overlong encoded strings. Why am I not surprised?
1508
f0917727
PH
1509PH/15 If the first argument of "${if match_address" was not empty, but did not
1510 contain an "@" character, Exim crashed. Now it writes a panic log message
1511 and treats the condition as false.
1512
096fee00
PH
1513PH/16 In autoreply, treat an empty string for "once" the same as unset.
1514
024bd3c2
PH
1515PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1516 extension "envelope-auth". The code is finished and in agreement with
1517 other implementations, but there is no documentation so far and in fact,
1518 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1519 not changing the active code.
1520
1521 Print executed "if" and "elsif" statements when debugging is used. This
1522 helps a great deal to understand what a filter does.
1523
1524 Document more things not specified clearly in RFC3028. I had all this
1525 sorted out, when out of a sudden new issues came to my mind. Oops."
1526
df199fec
PH
1527PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1528 (Bugzilla #53).
1529
d27f1df3
PH
1530PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1531 canonical form (as documented). However, after a host name lookup from
1532 the IP address, check_host() was doing a simple string comparison with
1533 addresses acquired from the DNS when checking that the found name did
1534 have the original IP as one of its addresses. Since any found IPv6
1535 addresses are likely to be in abbreviated form, the comparison could
1536 fail. Luckily, there already exists a function for doing the comparison
1537 by converting both addresses to binary, so now that is used instead of
1538 the text comparison.
1539
96776534
PH
1540PH/20 There was another similar case to PH/19, when a complete host name was
1541 given in a host list; looking up its IP address could give an abbreviated
1542 form, whereas the current host's name might or might not be abbreviated.
1543 The same fix has been applied.
1544
5de37277 1545
9a799bc0
PH
1546Exim version 4.54
1547-----------------
1548
1549PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1550 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1551 It now does.
1552
99a4b039
PH
1553PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1554 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1555
1556PH/03 Typo: missing ".o" in src/pcre/Makefile.
1557
4b233853
PH
1558PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1559 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1560 Also, for "Auto-Submitted", treat anything other than "no" as
1561 non-personal, in accordance with RFC 3834. (Previously it treated
1562 anything starting "auto-" as non-personal.)
1563
8857ccfd
PH
1564TF/01 The control=submission/name=... option had a problem with syntax
1565 errors if the name included a slash character. The /name= option
1566 now slurps the rest of the string, so it can include any characters
1567 but it must come last in the list of options (after /sender_retain
1568 or /domain=).
1569
433a2980
PH
1570PH/05 Some modifications to the interface to the fake nameserver for the new
1571 testing suite.
1572
3e46c1aa 1573
9a799bc0 1574
e3a311ba
TK
1575Exim version 4.53
1576-----------------
1577
1578TK/01 Added the "success_on_redirect" address verification option. See
1579 NewStuff for rationale and an example.
1580
13b685f9
PH
1581PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1582
395ff96d
PH
1583PH/02 Patch to exigrep to allow it to work on syslog lines.
1584
5b68f6e4
PH
1585PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1586 fread() to skip over the body file's header line, because in Cygwin the
1587 header line is locked and is inaccessible.
1588
1ab52c69
PH
1589PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1590 co-exist for some time) to make it clear that it is the Exim ID that is
1591 referenced, not the Message-ID: header line.
1592
b07e6aa3
PH
1593PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1594 string_format() function, because snprintf() does not exist on all
1595 operating systems.
1596
254e032f
PH
1597PH/06 The use of forbid_filter_existstest now also locks out the use of the
1598 ${stat: expansion item.
1599
3af76a81
PH
1600PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1601 protocol synchronization error", to keep the pedants happy.
1602
2548ba04
PH
1603PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1604 well as for IRIX systems, when gcc is being used. See the host.c source
1605 file for comments.
1606
b6c6011d
PH
1607PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1608
cf39cf57
PH
1609PH/10 Named domain lists were not working if used in a queue_smtp_domains
1610 setting.
1611
f1513293
PH
1612PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1613 transport and to the smtp transport in LMTP mode.
1614
727549a4
PH
1615TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1616
af46795e
PH
1617PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1618 run a filter in a subprocess. This could lead to confusion in subsequent
1619 lookups in the parent process. There should also be a search_tidyup() at
1620 the end of the subprocess.
1621
d7b47fd0
PH
1622PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1623 only if the host matched helo_try_verify_hosts, which caused the
1624 verification to occur when the EHLO/HELO command was issued. The ACL just
1625 tested the remembered result. Now, if a previous verification attempt has
1626 not happened, "verify = helo" does it there and then.
1627
ee744174
JJ
1628JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1629
b582ab87
PH
1630TK/03 Fix log output including CR from clamd.
1631
41a13e0a
PH
1632PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1633 exist provoked a memory error which could cause a segfault.
1634
f625cc5a
PH
1635PH/15 Installed PCRE 6.2
1636
1637PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1638
21f7af35
PH
1639PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1640 of the problem. Specifically, suggested +O2 rather than +O1 for the
1641 HP-UX compiler.
1642
31480e42
PH
1643PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1644
2d280592
PH
1645PH/20 If a delivery was routed to a non-standard port by means of an SRV
1646 record, the port was not correctly logged when the outgoing_port log
1647 selector was set (it logged the transort's default port).
1648
7cd1141b
PH
1649PH/21 Added support for host-specific ports to manualroute, queryprogram,
1650 fallback_hosts, and "hosts" in the smtp transport.
1651
1652PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1653 host errors such as "Connection refused".
1654
750af86e
PH
1655PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1656 authentication with radiusclient 0.4.9:
1657
1658 - Error returned from rc_read_config was caught wrongly
1659 - Username/password not passed on to radius server due to wrong length.
1660
1661 The presumption is that some radiusclient API changes for 4.51/PH/17
1662 were not taken care of correctly. The code is still untested by me (my
1663 Linux distribution still has 0.3.2 of radiusclient), but it was
1664 contributed by a Radius user.
1665
1666PH/24 When doing a callout, the value of $domain wasn't set correctly when
1667 expanding the "port" option of the smtp transport.
1668
4304270b
TK
1669TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1670 while reading a MIME header. Thanks to Tom Hughes for a patch.
1671
750af86e
PH
1672PH/24 Include config.h inside local_scan.h so that configuration settings are
1673 available.
1674
64ffc24f
PH
1675PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1676 that in an ACL for RCPT (for example), you can examine exactly what was
1677 received.
1678
5dd9625b
PH
1679PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1680 commands, but it was not correctly comparing the address with the actual
1681 client host address. Thus, it would show the EHLO address in Received:
1682 header lines when this was not necessary.
1683
5591031b
PH
1684PH/27 Added the % operator to ${eval:}.
1685
ba18e66a
PH
1686PH/28 Exim tries to create and chdir to its spool directory when it starts;
1687 it should be ignoring failures (because with -C, for example, it has lost
1688 privilege). It wasn't ignoring creation failures other than "already
1689 exists".
1690
9cec981f
PH
1691PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1692 -bV or -d is used.
1693
aa2b5c79
PH
1694PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1695 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1696 too many continuations, the temporary file was not being removed, and the
1697 return code was incorrect.
aa2b5c79 1698
48a53b7f
PH
1699PH/31 Missing "BOOL" in function definition in filtertest.c.
1700
1c59d63b
PH
1701PH/32 Applied Sieve patches from the maintainer.
1702
671012da
TK
1703TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1704
1509d3a8
PH
1705PH/33 Added "verify = not_blind".
1706
1707PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1708 Local/Makefile (with some defaults set). These are used in built scripts
1709 such as exicyclog, but they have never been used in the exim_install
1710 script (though there are many overriding facilities there). I have
1711 arranged that the exim_install script now takes note of these two
1712 settings.
1713
1714PH/35 Installed configuration files for Dragonfly.
1715
2fe1a124
PH
1716PH/36 When a locally submitted message by a trusted user did not contain a
1717 From: header, and the sender address was obtained from -f or from an SMTP
1718 MAIL command, and the trusted user did not use -F to supply a sender
1719 name, $originator_name was incorrectly used when constructing a From:
1720 header. Furthermore, $originator_name was used for submission mode
1721 messages from external hosts without From: headers in a similar way,
1722 which is clearly wrong.
1723
8800895a
PH
1724PH/37 Added control=suppress_local_fixups.
1725
ccfdb010
PH
1726PH/38 When log_selector = +received_sender was set, and the addition of the
1727 sender made the log line's construction buffer exactly full, or one byte
1728 less than full, an overflow happened when the terminating "\n" was
1729 subsequently added.
1730
1130bfb0
PH
1731PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1732 when the result of a list match is failure because a DNS lookup failed.
1733
ebcb507f
PH
1734PH/40 RM_COMMAND is now used in the building process.
1735
c35e155c
PH
1736PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1737 the "build-* directories that it finds.
1738
95d1f782
PH
1739PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1740 address in a domain literal was a prefix of an interface address.
1741
fd6de02e
PH
1742PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1743 when verifying a sender address, unless rewrite_headers is false.
1744
58de37c5
PH
1745PH/44 Wrote a long comment about why errors_to addresses are verified as
1746 recipients, not senders.
1747
261cf466
TF
1748TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1749 the ratelimit ACL was added.
1750
3ee512ff
PH
1751PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1752
e08c430f
PH
1753PH/46 Added extra information about PostgreSQL errors to the error string.
1754
bef5a11f
PH
1755PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1756 avoiding the need to install special zones in a real server. This is
1757 backwards compatible; if it can't find the fake resolver, it drops back.
1758 Thus, both old and new test suites can be run.
1759
7546de58
TF
1760TF/02 Added util/ratelimit.pl
1761
e5d5a95f
TF
1762TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1763 clock is set back in time.
1764
2e88a017
TF
1765TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1766 Candler <B.Candler@pobox.com>.
1767
a5f65aa4
TF
1768TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1769 OK for addresses that are the result of redirections.
1770
e7726cbf
PH
1771PH/48 A number of further additions for the benefit of the new test suite,
1772 including a fake gethostbyname() that interfaces to the fake DNS resolver
1773 (see PH/47 above).
1774
a7fdad5b
TF
1775TF/06 The fix for widen_domains has also been applied to qualify_single and
1776 search_parents which are the other dnslookup options that can cause
1777 header rewrites.
1778
6af56900
PH
1779PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1780 type ("H").
1781
0925ede6
PH
1782PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1783
66afa403
TF
1784TF/07 Exim produced the error message "an SRV record indicated no SMTP
1785 service" if it encountered an MX record with an empty target hostname.
1786 The message is now "an MX or SRV record indicated no SMTP service".
1787
0154e85a
TF
1788TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1789 if the DNS of the sending site is misconfigured. This is quite a
1790 common situation. This change restores the behaviour of treating a
1791 helo verification defer as a failure.
1792
16f12c76
PH
1793PH/51 If self=fail was set on a router, the bounce message did not include the
1794 actual error message.
1795
bbe902f0 1796
e5a9dba6
PH
1797Exim version 4.52
1798-----------------
1799
1800TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1801
22c3b60b
PH
1802PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1803 command itself ended in error, the underlying message about the transport
1804 filter timeout was being overwritten with the pipe command error. Now the
1805 underlying error message should be appended to the second error message.
1806
06a9b4b5
PH
1807TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1808
c1ac6996
PH
1809PH/02 Reduce the amount of output that "make" produces by default. Full output
1810 can still be requested.
1811
9c7a242c
PH
1812PH/03 The warning log line about a condition test deferring for a "warn" verb
1813 was being output only once per connection, rather than after each
1814 occurrence (because it was using the same function as for successful
1815 "warn" verbs). This seems wrong, so I have changed it.
1816
87ba3f5f
PH
1817TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1818 it should not have, which might have caused a crash in the right
1819 circumstances, but probably never did.
1820
1821PH/04 Installed a modified version of Tony Finch's patch to make submission
1822 mode fix the return path as well as the Sender: header line, and to
1823 add a /name= option so that you can make the user's friendly name appear
1824 in the header line.
1825
29aba418
TF
1826TF/03 Added the control = fakedefer ACL modifier.
1827
fe0dab11
TF
1828TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1829 Mark Lowes for thorough testing.
870f6ba8 1830
11d337a4
TK
1831TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1832
1833TK/03 Merged latest SRS patch from Miles Wilton.
1834
415c8f3b
PH
1835PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1836 with the definition in sysexits.h (which is #included earlier).
1837 Fortunately, Exim does not actually use EX_OK. The code used to try to
1838 preserve the sysexits.h value, by assumimg that macro definitions were
1839 scanned for macro replacements. I have been disabused of this notion,
1840 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1841
958541e9
PH
1842PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1843 in the smtp transport. When a block could not be written in a single
1844 write() function, the timeout was being re-applied to each part-write.
1845 This seems wrong - if the receiver was accepting one byte at a time it
1846 would take for ever. The timeout is now adjusted when this happens. It
1847 doesn't have to be particularly precise.
1848
c206415f
TK
1849TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1850 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1851
2a4be8f9
PH
1852PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1853 without a domain if the check to <postmaster@domain> fails.
1854
1cba11c5
SC
1855SC/01 Eximstats: added -xls and the ability to specify output files
1856 (patch written by Frank Heydlauf).
1857
1858SC/02 Eximstats: use FileHandles for outputing results.
1859
1860SC/03 Eximstats: allow any combination of xls, txt, and html output.
1861
1862SC/04 Eximstats: fixed display of large numbers with -nvr option
1863
1864SC/05 Eximstats: fixed merging of reports with empty tables.
1865
1866SC/06 Eximstats: added the -include_original_destination flag
1867
1868SC/07 Eximstats: removed tabs and trailing whitespace.
1869
1005d00e
TK
1870TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1871
1872TK/06 MBOX spool code: Add real "From " MBOX separator line
1873 so the .eml file is really in mbox format (even though
1874 most programs do not really care). Patch from Alex Miller.
1875
1876TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1877 The latter is generated from $received_to and is only set if the
1878 message has one envelope recipient. SA can use these headers,
1879 obviously out-of-the-box. Patch from Alex Miller.
1880
9b4768fa
PH
1881PH/08 The ${def test on a variable was returning false if the variable's
1882 value was "0", contrary to what the specification has always said!
1883 The result should be true unless the variable is empty.
1884
1885PH/09 The syntax error of a character other than { following "${if
1886 def:variable_name" (after optional whitespace) was not being diagnosed.
1887 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1888 accidental colon was present, for example, could give incorrect results.
1889
0d7eb84a
PH
1890PH/10 Tidied the code in a number of places where the st_size field of a stat()
1891 result is used (not including appendfile, where other changes are about
1892 to be made).
1893
1894PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1895 This involved changing a lot of size variables from int to off_t. It
1896 should work with maildirs and everything.
1897
40727bee
TK
1898TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1899 spamd dying while we are connected to it.
1900
554d2369
TF
1901TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1902 <jgh@wizmail.org>
1903
1f922db1
PH
1904PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1905 function for BDB 4.3.
1906
ef213c3b
PH
1907PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1908
8ac170f3
PH
1909PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1910 the sources for PCRE have been re-arranged and more files are now
1911 involved.
1912
b1c749bb
PH
1913PH/15 The code I had for printing potentially long long variables in PH/11
1914 above was not the best (it lost precision). The length of off_t variables
1915 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1916 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1917 to be "long long int" or "long int". This is needed for the internal
1918 formatting function string_vformat().
b1c749bb 1919
4aac9b49
PH
1920PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1921 the configuration file to be ":syslog", then the script "guesses" where
1922 the logs files are, rather than using the compiled in default. In our
1923 case the guess is not the same as the compiled default, so the script
1924 suddenly stopped working when I started to use syslog. The patch checks
1925 to see if log_file_path is "". If so, it attempts to read it from exim
1926 with no configuration file to get the compiled in version, before it
1927 falls back to the previous guessing code."
1928
294520c8
TK
1929TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1930 implementing BATV in an Exim configuration. See NewStuff for the gory
1931 details.
1932
5bd022fe
PH
1933PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1934 Makefile that are specific to HP-UX.
1935
90e9ce59
PH
1936PH/18 If the "use_postmaster" option was set for a recipient callout together
1937 with the "random" option, the postmaster address was used as the MAIL
1938 FROM address for the random test, but not for the subsequent recipient
1939 test. It is now used for both.
1940
5ea81592
PH
1941PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1942 patch removes a few documentation additions to RFC 3028, because the
1943 latest draft now contains them. It adds the new en;ascii-case comparator
1944 and a new error check for 8bit text in MIME parts. Comparator and
1945 require names are now matched exactly. I enabled the subaddress
1946 extension, but it is not well tested yet (read: it works for me)."
1947
c6c2dc1d
PH
1948PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1949 rework some of the code of TK/09 above to avoid the hardwired use of
1950 "%lld" and "long long". Replaced the call to snprintf() with a call to
1951 string_vformat().
1952
fffffe4c
PH
1953PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1954 records point to non-existent hosts", "retry timeout exceeded", and
1955 "retry time not reached for any host after a long failure period".
ca02eafb 1956
9a26b6b2
PH
1957PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1958 experimental DomainKeys support:
1959
1960 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1961 (2) On an error such as an illegally used "control", the wrong name for
1962 the control was given.
1963
1964 These problems did NOT occur unless DomainKeys support was compiled.
1965
4aee0225
PH
1966PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1967
32d668a5
PH
1968PH/24 Added ${if match_ip condition.
1969
8187c3f3
PH
1970PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1971 databases so that it will be absolutely obvious if a crash occurs in the
1972 DB library. This is a regular occurrence (often caused by mis-matched
1973 db.h files).
1974
ff790e47 1975PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1976 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1977 picked up on a user's system that detects such things. There doesn't seem
1978 to be a gcc warning option for this - only an attribute that has to be
1979 put on the function's prototype. It seems that in Fedora Core 4 they have
1980 set this on a number of new functions. No doubt there will be more in due
1981 course.
ff790e47 1982
5417f6d1
PH
1983PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1984 specify a transport. However, if an address that was verified by such a
1985 router was the subject of a callout, Exim crashed because it tried to
1986 read the rcpt_include_affixes from the non-existent transport. Now it
1987 just assumes that the setting of that option is false. This bug was
1988 introduced by 4.51/PH/31.
1989
59cf8544
PH
1990PH/28 Changed -d+all to exclude +memory, because that information is very
1991 rarely of interest, but it makes the output a lot bigger. People tend to
1992 do -d+all out of habit.
1993
e7ad8a65
PH
1994PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1995 code in os-type was giving problems when libc.so lives in lib64, like on
1996 x86_64 Fedora Core.
1997
ade42478
PH
1998PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1999 aren't the modern standard, and it seems that some systems' include files
2000 don't always have them. Exim was already checking for some of the newer
2001 ones like T_AAAA, and defining it itself. I've added checks for all the
2002 record types that Exim uses.
2003
182ad5cf
PH
2004PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2005 not automatically generating a new one, as it is supposed to. This
2006 prevented TLS from working. If the file did exist, but contained invalid
2007 data, a new version was generated, as expected. It was only the case of a
2008 non-existent file that was broken.
2009
b0d9fc80
TK
2010TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2011 with a change in libdomainkeys > 0.64.
2012
2013TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2014 from DNS. If the selector record carries the flag, it now has
2015 precedence over the domain-wide flag.
2016
2017TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2018
47c7a64a
PH
2019PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2020 the use of a port name that isn't defined in /etc/services) occurred, the
2021 message was deferred as in a normal delivery, and thus remained on the
2022 spool, instead of being failed because of the mua_wrapper setting. This
2023 is now fixed, and I tidied up some of the mua_wrapper messages at the
2024 same time.
2025
a388bce4
SC
2026SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2027 the messages in a hash of arrays rather than using individual hashes.
2028 This is a bit cleaner and results in dramatic memory savings, albeit
2029 at a slight CPU cost.
2030
2031SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2032 as requested by Marc Sherman.
2033
2034SC/10 Eximstats: added histograms for user specified patterns as requested
2035 by Marc Sherman.
2036
0793e4ed
SC
2037SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2038
c58b88df
PH
2039PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2040 fopen() in the content-scanning modules that did not already have it.
2041
e7ad8a65 2042
7982096b
PH
2043Exim version 4.51
2044-----------------
2045
1a46a8c5
PH
2046TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2047 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2048
2f079f46 2049TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2050
2051TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2052
2053PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2054 to test Sieve filters that use "vacation".
2055
2056PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2057 that changes the way the GnuTLS parameters are stored in the cache file.
2058 The new format can be generated externally. For backward compatibility,
2059 if the data in the cache doesn't make sense, Exim assumes it has read an
2060 old-format file, and it generates new data and writes a new file. This
2061 means that you can't go back to an older release without removing the
2062 file.
2063
2064PH/03 A redirect router that has both "unseen" and "one_time" set does not
2065 work if there are any delivery delays because "one_time" forces the
2066 parent to be marked "delivered", so its unseen clone is never tried
2067 again. For this reason, Exim now forbids the simultaneous setting of
2068 these two options.
2069
2070PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2071 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2072 entry if you want to know the details. The fix, however, neglected to
2073 consider the case when local delivery batching is involved. The test for
2074 "previously delivered" was not happening when checking to see if an
2075 address could be batched with a previous (undelivered) one; under
2076 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2077 address.
1a46a8c5
PH
2078
2079PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2080 in its include files, and this causes problems building Exim.
2081
2082PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2083 header_syntax) but Exim was just ignoring anything given after a slash.
2084 In particular, this caused confusion with an attempt to use "verify =
2085 reverse_host_lookup/defer_ok". An error is now given when options are
2086 supplied for verify items that do not have them. (Maybe reverse_host_
2087 lookup should have a defer_ok option, but that's a different point.)
2088
2089PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2090 defined by RFC 821) to 2048, because there were problems with some AUTH
2091 commands, and RFC 1869 says the size should be increased for extended
2092 SMTP commands that take arguments.
2093
2094PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2095 Finch).
2096
2097PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2098 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2099
49c2d5ea
PH
2100PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2101 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2102 whatever). Otherwise the password may appear in the log. Following change
2103 PH/42 below, there is no longer a chance of it appearing in a bounce
2104 message.
49c2d5ea 2105
bf759a8b
PH
2106PH/11 Installed exipick version 20050225.0 from John Jetmore.
2107
83364d30
PH
2108PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2109 of its addresses was ever tried. (Bugzilla bug #2.)
2110
7999bbd7
PH
2111PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2112 the result incorrectly in the debug output. (It correctly added a newline
2113 to what was transported.)
2114
7dbf77c9
PH
2115TF/01 Added $received_time.
2116
74e0617f
PH
2117PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2118 commented out examples of how to interface to a virus scanner and to
2119 SpamAssassin. Also added commented examples of av_scanner and
2120 spamd_address settings.
2121
2f079f46
PH
2122PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2123 and controls are allowed in which ACLs. There were a couple of minor
2124 errors. Some of the entries in the conditions table (which is a table of
2125 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2126 negation of where the condition IS allowed.
2127
8c841523
PH
2128PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2129
7766a4f0
PH
2130PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2131 header file does not have a version number, so I've had to invent a new
2132 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2133 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2134 radiusclient), but it was contributed by a Radius user.
2135
8b417f2c
PH
2136PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2137 files or directories, for OpenSSL.
2138
901f42cb
PH
2139PH/19 When an Exim process that is running as root has to create an Exim log
2140 file, it does so in a subprocess that runs as exim:exim so as to get the
2141 ownership right at creation (otherwise, other Exim processes might see
2142 the file with the wrong ownership). There was no test for failure of this
2143 fork() call, which would lead to the process getting stuck as it waited
2144 for a non-existent subprocess. Forks do occasionally fail when resources
2145 run out. I reviewed all the other calls to fork(); they all seem to check
2146 for failure.
2147
f9b9210e
PH
2148PH/20 When checking for unexpected SMTP input at connect time (before writing
2149 the banner), Exim was not dealing correctly with a non-positive return
2150 from the read() function. If the client had disconnected by this time,
2151 the result was a log entry for a synchronization error with an empty
2152 string after "input=" when read() returned zero. If read() returned -1
2153 (an event I could not check), uninitialized data bytes were printed.
2154 There were reports of junk text (parts of files, etc) appearing after
2155 "input=".
2156
54cdb463
PH
2157PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2158
cf00dad6
PH
2159PH/22 Added support for macro redefinition, and (re)definition in between
2160 driver and ACL definitions.
2161
acb1b346
PH
2162PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2163 forgetting to use the resulting value; it was using the unexpanded value.
2164
c5ddb310
PH
2165PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2166 hadn't been configured. The fix is from Juergen Kreileder, who
2167 understands it better than I do:
2168
2169 "Here's what I see happening with three configured cyrus_sasl
2170 authenticators configured (plain, login, cram-md5):
2171
2172 On startup auth_cyrus_sasl_init() gets called for each of these.
2173 This means three calls to sasl_listmech() without a specified mech_list.
2174 => SASL tests which mechs of all available mechs actually work
2175 => three warnings about OTP not working
2176 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2177
2178 With the patch, sasl_listmech() also gets called three times. But now
2179 SASL's mech_list option is set to the server_mech specified in the the
2180 authenticator. Or in other words, the answer from sasl_listmech()
2181 gets limited to just the mech you're testing for (which is different
2182 for each call.)
2183 => the return list contains just 'plain' or 'login', 'cram-md5' or
2184 nothing depending on the value of ob->server_mech.
2185
2186 I've just tested the patch: Authentication still works fine,
2187 unavailable mechs specified in the exim configuration are still
2188 caught, and the auth.log warnings about OTP are gone."
2189
31619da6
PH
2190PH/25 When debugging is enabled, the contents of the command line are added
2191 to the debugging output, even when log_selector=+arguments is not
2192 specified.
2193
bebaf0fc
PH
2194PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2195 answer is "GNU", and only if the return is "GNU/something" is the answer
2196 "Linux".
2197
475fe28a
PH
2198PH/27 $acl_verify_message is now set immediately after the failure of a
2199 verification in an ACL, and so is available in subsequent modifiers. In
2200 particular, the message can be preserved by coding like this:
2201
2202 warn !verify = sender
2203 set acl_m0 = $acl_verify_message
2204
2205 Previously, $acl_verify_message was set only while expanding "message"
2206 and "log_message" when a very denied access.
2207
7e8bec7a
PH
2208PH/28 Modified OS/os.c-Linux with
2209
2210 -#ifndef OS_LOAD_AVERAGE
2211 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2212
2213 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2214 nomenclature these days.)
2215
e4a89c47
PH
2216PH/29 Installed patch from the Sieve maintainer that adds the options
2217 sieve_useraddress and sieve_subaddress to the redirect router.
2218
5ca2a9a1
PH
2219PH/30 In these circumstances:
2220 . Two addresses routed to the same list of hosts;
2221 . First host does not offer TLS;
2222 . First host accepts first address;
2223 . First host gives temporary error to second address;
2224 . Second host offers TLS and a TLS session is established;
2225 . Second host accepts second address.
2226 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2227 and peerdn, if requested) that were in fact used only for the second
2228 address.
7e8bec7a 2229
c688b954
PH
2230PH/31 When doing a callout as part of verifying an address, Exim was not paying
2231 attention to any local part prefix or suffix that was matched by the
2232 router that accepted the address. It now behaves in the same way as it
2233 does for delivery: the affixes are removed from the local part unless
2234 rcpt_include_affixes is set on the transport.
2235
fed77020
PH
2236PH/32 Add the sender address, as F=<...>, to the log line when logging a
2237 timeout during the DATA phase of an incoming message.
2238
7fe1560f
PH
2239PH/33 Sieve envelope tests were broken for match types other than :is. I have
2240 applied a patch sanctioned by the Sieve maintainer.
c688b954 2241
ebb6e6d5
PH
2242PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2243 the uid or gid is negative. A case of a negative gid caused this to be
2244 noticed. The fix allows for either to be negative.
2245
9c4e8f60
PH
2246PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2247 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2248 overlooked.
2249
2250PH/36 The change PH/12 above was broken. Fixed it.
2251
d7174846
PH
2252PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2253 the grounds that routing the same address twice would always produce the
2254 same answer. This might have been true once, but it is certainly no
2255 longer true now. Routing a child address may depend on the previous
2256 routing that produced that child. Some complicated redirection strategies
2257 went wrong when messages had multiple recipients, and made Exim's
2258 behaviour dependent on the order in which the addresses were given.
2259
2260 I have moved the duplicate checking until after the routing is complete.
2261 Exim scans the addresses that are assigned to local and remote
2262 transports, and removes any duplicates. This means that more work will be
2263 done, as duplicates will always all be routed, but duplicates are
2264 presumably rare, so I don't expect this is of any significance.
2265
2266 For deliveries to pipes, files, and autoreplies, the duplicate checking
2267 still happens during the routing process, since they are not going to be
2268 routed further.
2269
cfe75fc3
PH
2270PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2271 It corrects a timeout issue with spamd. This is Ian's comment: "The
2272 background is that sometimes spamd either never reads data from a
2273 connection it has accepted, or it never writes response data. The exiscan
2274 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2275 blindly assumes that writes won't block so it may never time out."
2276
be22d70e
PH
2277PH/39 Allow G after quota size as well as K and M.
2278
0612b098
PH
2279PH/40 The value set for $authenticated_id in an authenticator may not contain
2280 binary zeroes or newlines because the value is written to log lines and
2281 to spool files. There was no check on this. Now the value is run through
2282 the string_printing() function so that such characters are converted to
2283 printable escape sequences.
2284
2e0c1448
PH
2285PH/41 $message_linecount is a new variable that contains the total number of
2286 lines in the message. Compare $body_linecount, which is the count for the
2287 body only.
2288
447d236c
PH
2289PH/42 Exim no longer gives details of delivery errors for specific addresses in
2290 bounce and delay warning messages, except in certain special cases, which
2291 are as follows:
2292
2293 (a) An SMTP error message from a remote host;
2294 (b) A message specified in a :fail: redirection;
2295 (c) A message specified in a "fail" command in a system filter;
2296 (d) A message specified in a FAIL return from the queryprogram router;
2297 (e) A message specified by the cannot_route_message router option.
2298
2299 In these cases only, Exim does include the error details in bounce and
2300 warning messages. There are also a few cases where bland messages such
2301 as "unrouteable address" or "local delivery error" are given.
2302
d20976dc
PH
2303PH/43 $value is now also set for the "else" part of a ${run expansion.
2304
f656d135
PH
2305PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2306 being worked on, but at least Exim now implements the latest version to
2307 play with."
2308
2e2a30b4
PH
2309PH/45 In a pipe transport, although a timeout while waiting for the pipe
2310 process to complete was treated as a delivery failure, a timeout while
2311 writing the message to the pipe was logged, but erroneously treated as a
2312 successful delivery. Such timeouts include transport filter timeouts. For
2313 consistency with the overall process timeout, these timeouts are now
2314 treated as errors, giving rise to delivery failures by default. However,
2315 there is now a new Boolean option for the pipe transport called
2316 timeout_defer, which, if set TRUE, converts the failures into defers for
2317 both kinds of timeout. A transport filter timeout is now identified in
2318 the log output.
2319
9176e9f0
PH
2320PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2321 systems where "make" and "gmake" are different, calling "gmake" at top
2322 level broke things. I've arranged for the value of $(MAKE) to be passed
2323 from the Makefile to this script so that it can call the same version of
2324 "make".
2325
7982096b 2326
bbe902f0
PH
2327A note about Exim versions 4.44 and 4.50
2328----------------------------------------
2329
2330Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2331changes of various kinds. As a consequence, a big documentation update was
2332needed. This delayed the release for rather longer than seemed good, especially
2333in the light of a couple of (minor) security issues. Therefore, the changes
2334that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2335release. So 4.44 and 4.50 are in effect two different branches that both start
2336from 4.43.
2337
2338I have left the 4.50 change log unchanged; it contains all the changes since
23394.43. The change log for 4.44 is below; many of its items are identical to
2340those for 4.50. This seems to be the most sensible way to preserve the
2341historical information.
2342
2343
f7b63901 2344Exim version 4.50
495ae4b0
PH
2345-----------------
2346
5fe762f6
PH
2347 1. Minor wording change to the doc/README.SIEVE file.
2348
139059f6 2349 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2350 computation of the current number of files was incorrect.
495ae4b0 2351
7086e875
PH
2352 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2353 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2354 place.
2355
35af9f61
PH
2356 4. Give more explanation in the error message when the command for a transport
2357 filter fails to execute.
2358
b668c215
PH
2359 5. There are several places where Exim runs a non-Exim command in a
2360 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2361 was being done only for the command run by the queryprogram router. It is
2362 now done for all such subprocesses. The other cases are: ${run, transport
2363 filters, and the commands run by the lmtp and pipe transports.
2364
a494b1e1
PH
2365 6. Added CONFIGURE_GROUP build-time option.
2366
2367 7. Some older OS have a limit of 256 on the maximum number of file
2368 descriptors. Exim was using setrlimit() to set 1000 as a large value
2369 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2370 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2371
c5fcb476
PH
2372 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2373 was an oversight, and furthermore, ever since the addition of extra
2374 controls (e.g. 4.43/32), the checks on when to allow different forms of
2375 "control" were broken. There should now be diagnostics for all cases when a
2376 control that does not make sense is encountered.
2377
69358f02
PH
2378 9. Added the /retain_sender option to "control=submission".
2379
5be20824
PH
238010. $recipients is now available in the predata ACL (oversight).
2381
eb2c0248
PH
238211. Tidy the search cache before the fork to do a delivery from a message
2383 received from the command line. Otherwise the child will trigger a lookup
2384 failure and thereby defer the delivery if it tries to use (for example) a
2385 cached ldap connection that the parent has called unbind on.
2386
2a3eea10
PH
238712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2388 of $address_data from the recipient verification was clobbered by the
2389 sender verification.
2390
239113. The value of address_data from a sender verification is now available in
2392 $sender_address_data in subsequent conditions in the ACL statement.
2393
23c7ff99
PH
239414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2395
4deaf07d
PH
239615. Added a new option "connect=<time>" to callout options, to set a different
2397 connection timeout.
2398
926e1192
PH
239916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2400 was its contents. (It was OK if the option was not defined at all.)
2401
650edc6f
PH
240217. A "Completed" log line is now written for messages that are removed from
2403 the spool by the -Mrm option.
2404
2c7db3f5
PH
240518. New variables $sender_verify_failure and $recipient_verify_failure contain
2406 information about exactly what failed.
2407
3d235903
PH
240819. Added -dd to debug only the daemon process.
2409
7c7ad977
PH
241020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2411 handles timeouts, both on the server side and network timeouts. Renamed the
2412 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2413
981756db
PH
241421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2415 It is now set to "smtps".
2416
d4eb88df
PH
241722. $host_address is now set to the target address during the checking of
2418 ignore_target_hosts.
2419
242023. When checking ignore_target_hosts for an ipliteral router, no host name was
2421 being passed; this would have caused $sender_host_name to have been used if
2422 matching the list had actually called for a host name (not very likely,
2423 since this list is usually IP addresses). A host name is now passed as
2424 "[x.x.x.x]".
2425
7d468ab8
PH
242624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2427 code that specifies a non-restarting handler (typically sigaction() in
2428 modern systems) in an attempt to fix a rare and obscure crash bug.
2429
243025. Narrowed the window for a race in the daemon that could cause it to ignore
2431 SIGCHLD signals. This is not a major problem, because they are used only to
2432 wake it up if nothing else does.
2433
62c0818f
PH
243426. A malformed maildirsize file could cause Exim to calculate negative values
2435 for the mailbox size or file count. Odd effects could occur as a result.
2436 The maildirsize information is now recalculated if the size or filecount
2437 end up negative.
2438
26034054
PH
243927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2440 support for a long time. Removed HAVE_SYS_VFS_H.
2441
af66f652
PH
244228. Installed the latest version of exipick from John Jetmore.
2443
90af77f4
PH
244429. In an address list, if the pattern was not a regular expression, an empty
2445 subject address (from a bounce message) matched only if the pattern was an
2446 empty string. Non-empty patterns were not even tested. This was the wrong
2447 because it is perfectly reasonable to use an empty address as part of a
2448 database query. An empty address is now tested by patterns that are
2449 lookups. However, all the other forms of pattern expect the subject to
2450 contain a local part and a domain, and therefore, for them, an empty
2451 address still always fails if the pattern is not itself empty.
2452
d8ef3577
PH
245330. Exim went into a mad DNS loop when attempting to do a callout where the
2454 host was specified on an smtp transport, and looking it up yielded more
2455 than one IP address.
2456
5cb8cbc6
PH
245731. Re-factored the code for checking spool and log partition space into a
2458 function that finds that data and another that does the check. The former
2459 is then used to implement four new variables: $spool_space, $log_space,
2460 $spool_inodes, and $log_inodes.
2461
14702f5b
PH
246232. The RFC2047 encoding function was originally intended for short strings
2463 such as real names; it was not keeping to the 75-character limit for
2464 encoded words that the RFC imposes. It now respects the limit, and
2465 generates multiple encoded words if necessary. To be on the safe side, I
2466 have increased the buffer size for the ${rfc2047: expansion operator from
2467 1024 to 2048 bytes.
2468
063b1e99
PH
246933. It is now permitted to omit both strings after an "if" condition; if the
2470 condition is true, the result is "true". As before, when the second string
2471 is omitted, a false condition yields an empty string. This makes it less
2472 cumbersome to write custom ACL and router conditions.
2473
652e1b65
PH
247434. Failure to deliver a bounce message always caused it to be frozen, even if
2475 there was an errors_to setting on the router. The errors_to setting is now
2476 respected.
2477
6f0c9a4f
PH
247835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2479 canonical form (fully expanded) before being placed in
2480 $sender_host_address.
2481
33397d19
PH
248236. The table in the code that translates DNS record types into text (T_A to
2483 "A" for instance) was missing entries for NS and CNAME. It is just possible
2484 that this could have caused confusion if both these types were looked up
2485 for the same domain, because the text type is used as part of Exim's
2486 per-process caching. But the chance of anyone hitting this buglet seems
2487 very small.
2488
7bb56e1f
PH
248937. The dnsdb lookup has been extended in a number of ways.
2490
2491 (1) There is a new type, "zns", which walks up the domain tree until it
2492 finds some nameserver records. It should be used with care.
2493
ea3bc19b
PH
2494 (2) There is a new type, "mxh", which is like "mx" except that it returns
2495 just the host names, not the priorities.
2496
2497 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2498 looked up. The behaviour when one of the lookups defers can be
2499 controlled by a keyword.
7bb56e1f 2500
ea3bc19b 2501 (4) It is now possible to specify the separator character for use when
7bb56e1f 2502 multiple records are returned.
33397d19 2503
0bcb2a0e
PH
250438. The dnslists ACL condition has been extended: it is now possible to supply
2505 a list of IP addresses and/or domains to be looked up in a particular DNS
2506 domain.
2507
2ac0e484
PH
250839. Added log_selector=+queue_time_overall.
2509
4e1fde53
PH
251040. When running the queue in the test harness, wait just a tad after forking a
2511 delivery process, to get repeatability of debugging output.
2512
de365ded
PH
251341. Include certificate and key file names in error message when GnuTLS fails
2514 to set them up, because the GnuTLS error message doesn't include the name
2515 of the failing file when there is a problem reading it.
2516
f05da2e8
PH
251742. Allow both -bf and -bF in the same test run.
2518
d6453af2
PH
251943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2520
f7b63901
PH
252144. The "Exiscan patch" is now merged into the mainline Exim source.
2522
252345. Sometimes the final signoff response after QUIT could fail to get
2524 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2525 < 0 before doing a fflush(). This bug looks as though it goes back to the
2526 introduction of TLS in release 3.20, but "sometimes" must have been rare
2527 because the tests only now provoked it.
2528
a444213a
PH
252946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2530 (this can affect the format of dates).
2531
0ec020ea
PH
253247. exim_tidydb, when checking for the continued existence of a message for
2533 which it has found a message-specific retry record, was not finding
2534 messages that were in split spool directories. Consequently, it was
2535 deleting retry records that should have stayed in existence.
2536
b1206957
PH
253748. Steve fixed some bugs in eximstats.
2538
253949. The SPA authentication driver was not abandoning authentication and moving
2540 on to the next authenticator when an expansion was forced to fail,
2541 contradicting the general specification for all authenticators. Instead it
2542 was generating a temporary error. It now behaves as specified.
2543
26dd5a95
PH
254450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2545 (the order specifies the preference for clients). The order is now AES256,
2546 AES128, 3DES, ARCFOUR128.
2547
343b2385
PH
254851. Small patch to Sieve code - explicitly set From: when generating an
2549 autoreply.
2550
1c5466b9
PH
255152. Exim crashed if a remote delivery caused a very long error message to be
2552 recorded - for instance if somebody sent an entire SpamAssassin report back
2553 as a large number of 550 error lines. This bug was coincidentally fixed by
2554 increasing the size of one of Exim's internal buffers (big_buffer) that
2555 happened as part of the Exiscan merge. However, to be on the safe side, I
2556 have made the code more robust (and fixed the comments that describe what
2557 is going on).
2558
55ee9ee3
PH
255953. Now that there can be additional text after "Completed" in log lines (if
2560 the queue_time_overall log selector is set), a one-byte patch to exigrep
2561 was needed to allow it to recognize "Completed" as not the last thing in
2562 the line.
2563
d38f8232
PH
256454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2565 patch that reportedly fixes this has been added. I am not expert enough to
2566 create a test for it. This is what the patch creator wrote:
2567
2568 "I found a little strange behaviour of ldap code when working with
2569 Windows 2003 AD Domain, where users was placed in more than one
2570 Organization Units. When I tried to give exim partial DN, the exit code
2571 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2572 But simultaneously result of request was absolutely normal ldap result,
2573 so I produce this patch..."
2574
3295e65b
PH
2575 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2576 REFERENCE, so I have modified the code to exclude the patch when that macro
2577 is not defined.
2578
7102e136
PH
257955. Some experimental protocols are using DNS PTR records for new purposes. The
2580 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2581 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2582 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2583 CAN-2005-0021
7102e136 2584
3ca0ba97
PH
258556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2586
c2bcbe20
PH
258757. Double the size of the debug message buffer (to 2048) so that more of very
2588 long debug lines gets shown.
2589
18ce445d
PH
259058. The exicyclog utility now does better if the number of log files to keep
2591 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2592
1f5b4c3d
PH
259359. Two changes related to the smtp_active_hostname option:
2594
2595 (1) $smtp_active_hostname is now available as a variable.
2596 (2) The default for smtp_banner uses $smtp_active_hostname instead
2597 of $primary_hostname.
2598
b975ba52
PH
259960. The host_aton() function is supposed to be passed a string that is known
2600 to be a valid IP address. However, in the case of IPv6 addresses, it was
2601 not checking this. This is a hostage to fortune. Exim now panics and dies
2602 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2603 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2604 components; fortuitously, this particular loophole had already been fixed
2605 by change 4.50/55 above.
2606
2607 If there are any other similar loopholes, the new check in host_aton()
2608 itself should stop them being exploited. The report I received stated that
2609 data on the command line could provoke the exploit when Exim was running as
2610 exim, but did not say which command line option was involved. All I could
2611 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2612 running as the user.
ea3a6f44 2613 CAN-2005-0021
85b87bc2
PH
2614
261561. There was a buffer overflow vulnerability in the SPA authentication code
2616 (which came originally from the Samba project). I have added a test to the
2617 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2618 CAN-2005-0022
b975ba52 2619
17ffcae7
PH
262062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2621 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2622
d95f9fdb
PH
262363. The daemon start-up calls getloadavg() while still root for those OS that
2624 need the first call to be done as root, but it missed one case: when
2625 deliver_queue_load_max is set with deliver_drop_privilege. This is
2626 necessary for the benefit of the queue runner, because there is no re-exec
2627 when deliver_drop_privilege is set.
2628
86b8287f
PH
262964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2630 This has been fixed.
2631
60dc5e56
PH
263265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2633 was in use, was not putting the data itself into the right store pool;
2634 consequently, it could be overwritten for a subsequent message in the same
2635 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2636 the caching.)
2637
533244af
PH
263866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2639
a5a28604
PH
264067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2641 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2642 the function were treating the return as a boolean value, which happened to
2643 work because 0=false and not-0=true, but is not correct code.
2644
7e634d24
PH
264568. The host_aton() function was not handling scoped IPv6 addresses (those
2646 with, for example, "%eth0" on the end) correctly.
2647
3e11c26b
PH
264869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2649 negated items (that is, ~something) in unsigned ints. Some compilers
2650 apparently mutter when there is no cast.
2651
6729cf78
PH
265270. If an address verification called from an ACL failed, and did not produce a
2653 user-specific message (i.e. there was only a "system" message), nothing was
2654 put in $acl_verify_message. In this situation, it now puts the system
2655 message there.
2656
00f00ca5
PH
265771. Change 4.23/11 added synchronization checking at the start of an SMTP
2658 session; change 4.31/43 added the unwanted input to the log line - except
2659 that it did not do this in the start of session case. It now does.
2660
c9bdd01c
PH
266172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2662 This is wrong and can cause the other end to generate a synchronization
2663 error if it is another Exim or anything else that does the synchronization
2664 check. A QUIT command is no longer sent after a timeout.
2665
d43194df
PH
266673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2667 during host lookups.
2668
fe5b5d0b
PH
266974. The defer_ok option of callout verification was not working if it was used
2670 when verifying addresses in header lines, that is, for this case:
2671
2672 verify = header_sender/callout=defer_ok
2673
76a2d7ba
PH
267475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2675 those file descriptors could be used for SMTP connections. If anything
2676 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2677 could be sent to the SMTP client, causing chaos. The daemon now opens
2678 stdin, stdout, and stderr to /dev/null when it puts itself into the
2679 background.
2680
268176. Arrange for output from Perl's "warn" command to be written to Exim's main
2682 log by default. The user can override this with suitable Perl magic.
2683
04f7d5b9
PH
268477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2685 the log message when discard triggers, was not working for the DATA ACL or
2686 for the non-SMTP ACL.
2687
bc60667e
PH
268878. Error message wording change in sieve.c.
2689
bb6e88ff
PH
269079. If smtp_accept_max_per_host was set, the number of connections could be
2691 restricted to fewer than expected, because the daemon was trying to set up
2692 a new connection before checking whether the processes handling previous
2693 connections had finished. The check for completed processes is now done
2694 earlier. On busy systems, this bug wouldn't be noticed because something
2695 else would have woken the daemon, and it would have reaped the completed
2696 process earlier.
2697
1e70f85b
PH
269880. If a message was submitted locally by a user whose login name contained one
2699 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2700 It caused a spool format error. I have fixed the spool reading code. A
2701 related problem was that the "from" clause in the Received: line became
2702 illegal because of the space(s). It is now covered by ${quote_local_part.
2703
270481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2705 tables).
2706
4e01f9d6
PH
270782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2708
1ee1cef2
PH
270983. Patch from Sieve maintainer to fix unterminated string problem in
2710 "vacation" handling.
2711
6e2b4ccc
PH
271284. Some minor changes to the Linux configuration files to help with other
2713 OS variants using glibc.
2714
8e669ac1
PH
271585. One more patch for Sieve to update vacation handling to latest spec.
2716
495ae4b0 2717
bbe902f0
PH
2718----------------------------------------------------
2719See the note above about the 4.44 and 4.50 releases.
2720----------------------------------------------------
2721
2722
2723Exim version 4.44
2724-----------------
2725
2726 1. Change 4.43/35 introduced a bug that caused file counts to be
2727 incorrectly computed when quota_filecount was set in an appendfile
2728 transport
2729
2730 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2731 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2732 place.
2733
2734 3. Give more explanation in the error message when the command for a transport
2735 filter fails to execute.
2736
2737 4. There are several places where Exim runs a non-Exim command in a
2738 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2739 was being done only for the command run by the queryprogram router. It is
2740 now done for all such subprocesses. The other cases are: ${run, transport
2741 filters, and the commands run by the lmtp and pipe transports.
2742
2743 5. Some older OS have a limit of 256 on the maximum number of file
2744 descriptors. Exim was using setrlimit() to set 1000 as a large value
2745 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2746 systems. I've change it so that if it can't get 1000, it tries for 256.
2747
2748 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2749 was an oversight, and furthermore, ever since the addition of extra
2750 controls (e.g. 4.43/32), the checks on when to allow different forms of
2751 "control" were broken. There should now be diagnostics for all cases when a
2752 control that does not make sense is encountered.
2753
2754 7. $recipients is now available in the predata ACL (oversight).
2755
2756 8. Tidy the search cache before the fork to do a delivery from a message
2757 received from the command line. Otherwise the child will trigger a lookup
2758 failure and thereby defer the delivery if it tries to use (for example) a
2759 cached ldap connection that the parent has called unbind on.
2760
2761 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2762 of $address_data from the recipient verification was clobbered by the
2763 sender verification.
2764
276510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2766 was its contents. (It was OK if the option was not defined at all.)
2767
276811. A "Completed" log line is now written for messages that are removed from
2769 the spool by the -Mrm option.
2770
277112. $host_address is now set to the target address during the checking of
2772 ignore_target_hosts.
2773
277413. When checking ignore_target_hosts for an ipliteral router, no host name was
2775 being passed; this would have caused $sender_host_name to have been used if
2776 matching the list had actually called for a host name (not very likely,
2777 since this list is usually IP addresses). A host name is now passed as
2778 "[x.x.x.x]".
2779
278014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2781 code that specifies a non-restarting handler (typically sigaction() in
2782 modern systems) in an attempt to fix a rare and obscure crash bug.
2783
278415. Narrowed the window for a race in the daemon that could cause it to ignore
2785 SIGCHLD signals. This is not a major problem, because they are used only to
2786 wake it up if nothing else does.
2787
278816. A malformed maildirsize file could cause Exim to calculate negative values
2789 for the mailbox size or file count. Odd effects could occur as a result.
2790 The maildirsize information is now recalculated if the size or filecount
2791 end up negative.
2792
279317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2794 support for a long time. Removed HAVE_SYS_VFS_H.
2795
ea3a6f44 279618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2797
279819. Allow an empty sender to be matched against a lookup in an address list.
2799 Previously the only cases considered were a regular expression, or an
2800 empty pattern.
2801
280220. Exim went into a mad DNS lookup loop when doing a callout where the
2803 host was specified on the transport, if the DNS lookup yielded more than
2804 one IP address.
2805
ea3a6f44
NM
280621. The RFC2047 encoding function was originally intended for short strings
2807 such as real names; it was not keeping to the 75-character limit for
2808 encoded words that the RFC imposes. It now respects the limit, and
2809 generates multiple encoded words if necessary. To be on the safe side, I
2810 have increased the buffer size for the ${rfc2047: expansion operator from
2811 1024 to 2048 bytes.
bbe902f0 2812
ea3a6f44
NM
281322. Failure to deliver a bounce message always caused it to be frozen, even if
2814 there was an errors_to setting on the router. The errors_to setting is now
2815 respected.
bbe902f0
PH
2816
281723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2818 canonical form (fully expanded) before being placed in
2819 $sender_host_address.
2820
282124. Updated eximstats to version 1.33
2822
ea3a6f44
NM
282325. Include certificate and key file names in error message when GnuTLS fails
2824 to set them up, because the GnuTLS error message doesn't include the name
2825 of the failing file when there is a problem reading it.
bbe902f0
PH
2826
282726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2828 As per change 25.
bbe902f0 2829
ea3a6f44
NM
283027. Reset the locale to "C" after calling embedded Perl, in case it was changed
2831 (this can affect the format of dates).
bbe902f0 2832
ea3a6f44
NM
283328. exim_tidydb, when checking for the continued existence of a message for
2834 which it has found a message-specific retry record, was not finding
2835 messages that were in split spool directories. Consequently, it was
2836 deleting retry records that should have stayed in existence.
bbe902f0
PH
2837
283829. eximstats updated to version 1.35
2839 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2840 1.35 - bugfix such that pie charts by volume are generated correctly
2841
ea3a6f44
NM
284230. The SPA authentication driver was not abandoning authentication and moving
2843 on to the next authenticator when an expansion was forced to fail,
2844 contradicting the general specification for all authenticators. Instead it
2845 was generating a temporary error. It now behaves as specified.
bbe902f0 2846
ea3a6f44
NM
284731. The default ordering of permitted cipher suites for GnuTLS was pessimal
2848 (the order specifies the preference for clients). The order is now AES256,
2849 AES128, 3DES, ARCFOUR128.
bbe902f0 2850
ea3a6f44
NM
285131. Small patch to Sieve code - explicitly set From: when generating an
2852 autoreply.
bbe902f0 2853
ea3a6f44
NM
285432. Exim crashed if a remote delivery caused a very long error message to be
2855 recorded - for instance if somebody sent an entire SpamAssassin report back
2856 as a large number of 550 error lines. This bug was coincidentally fixed by
2857 increasing the size of one of Exim's internal buffers (big_buffer) that
2858 happened as part of the Exiscan merge. However, to be on the safe side, I
2859 have made the code more robust (and fixed the comments that describe what
2860 is going on).
bbe902f0 2861
ea3a6f44
NM
286233. Some experimental protocols are using DNS PTR records for new purposes. The
2863 keys for these records are domain names, not reversed IP addresses. The
2864 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2865 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2866 CAN-2005-0021
2867
ea3a6f44
NM
286834. The host_aton() function is supposed to be passed a string that is known
2869 to be a valid IP address. However, in the case of IPv6 addresses, it was
2870 not checking this. This is a hostage to fortune. Exim now panics and dies
2871 if the condition is not met. A case was found where this could be provoked
2872 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2873 components; fortuitously, this particular loophole had already been fixed
2874 by change 4.50/55 or 4.44/33 above.
2875
2876 If there are any other similar loopholes, the new check in host_aton()
2877 itself should stop them being exploited. The report I received stated that
2878 data on the command line could provoke the exploit when Exim was running as
2879 exim, but did not say which command line option was involved. All I could
2880 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2881 running as the user.
bbe902f0
PH
2882 CAN-2005-0021
2883
ea3a6f44
NM
288435. There was a buffer overflow vulnerability in the SPA authentication code
2885 (which came originally from the Samba project). I have added a test to the
2886 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2887 CAN-2005-0022
2888
ea3a6f44
NM
288936. The daemon start-up calls getloadavg() while still root for those OS that
2890 need the first call to be done as root, but it missed one case: when
2891 deliver_queue_load_max is set with deliver_drop_privilege. This is
2892 necessary for the benefit of the queue runner, because there is no re-exec
2893 when deliver_drop_privilege is set.
bbe902f0 2894
ea3a6f44
NM
289537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2896 was in use, was not putting the data itself into the right store pool;
2897 consequently, it could be overwritten for a subsequent message in the same
2898 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2899 the caching.)
bbe902f0 2900
ea3a6f44
NM
290138. Sometimes the final signoff response after QUIT could fail to get
2902 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2903 < 0 before doing a fflush(). This bug looks as though it goes back to the
2904 introduction of TLS in release 3.20, but "sometimes" must have been rare
2905 because the tests only now provoked it.
bbe902f0
PH
2906
2907
495ae4b0
PH
2908Exim version 4.43
2909-----------------
2910
2911 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2912 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2913 Now it returns an integer. A number of calls were still expecting a T/F
2914 return. Fortuitously, in all cases, the tests worked in OK situations,
2915 which is the norm. However, things would have gone wrong on any write
2916 failures on the smtp file descriptor. This function is used when sending
2917 messages over SMTP and also when doing verify callouts.
2918
2919 2. When Exim is called to do synchronous delivery of a locally submitted
2920 message (the -odf or -odi options), it no longer closes stderr before doing
2921 the delivery.
2922
2923 3. Implemented the mua_wrapper option.
2924
2925 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2926
2927 5. Implemented the functions header_remove(), header_testname(),
2928 header_add_at_position(), and receive_remove_recipient(), and exported them
2929 to local_scan().
2930
2931 6. If an ACL "warn" statement specified the addition of headers, Exim already
2932 inserted X-ACL-Warn: at the start if there was no header name. However, it
2933 was not making this test for the second and subsequent header lines if
2934 there were newlines in the string. This meant that an invalid header could
2935 be inserted if Exim was badly configured.
2936
2937 7. Allow an ACL "warn" statement to add header lines at the start or after all
2938 the Received: headers, as well as at the end.
2939
2940 8. Added the rcpt_4xx retry error code.
2941
2942 9. Added postmaster_mailfrom=xxx to callout verification option.
2943
294410. Added mailfrom=xxxx to the callout verification option, for verify=
2945 header_sender only.
2946
294711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2948 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2949
295012. Inserted some casts to stop certain compilers warning when using pointer
2951 differences as field lengths or precisions in printf-type calls (mostly
2952 affecting debugging statements).
2953
295413. Added optional readline() support for -be (dynamically loaded).
2955
295614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2957 same clock tick as a message's arrival, so that its received time was the
2958 same as the "first fail" time on the retry record, and that message
2959 remained on the queue past the ultimate address timeout, every queue runner
2960 would try a delivery (because it was past the ultimate address timeout) but
2961 after another failure, the ultimate address timeout, which should have then
2962 bounced the address, did not kick in. This was a "< instead of <=" error;
2963 in most cases the first failure would have been in the next clock tick
2964 after the received time, and all would be well.
2965
296615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2967 being recognized when the domain list was tested by the match_domain
2968 condition in an expansion string.
2969
297016. Added the ${str2b64: operator.
2971
297217. Exim was always calling setrlimit() to set a large limit for the number of
2973 processes, without checking whether the existing limit was already
2974 adequate. (It did check for the limit on file descriptors.) Furthermore,
2975 errors from getrlimit() and setrlimit() were being ignored. Now they are
2976 logged to the main and panic logs, but Exim does carry on, to try to do its
2977 job under whatever limits there are.
2978
297918. Imported PCRE 5.0.
2980
298119. Trivial typo in log message " temporarily refused connection" (the leading
2982 space).
2983
298420. If the log selector return_path_on_delivery was set and an address was
2985 redirected to /dev/null, the delivery process crashed because it assumed
2986 that a return path would always be set for a "successful" delivery. In this
2987 case, the whole delivery is bypassed as an optimization, and therefore no
2988 return path is set.
2989
299021. Internal re-arrangement: the function for sending a challenge and reading
2991 a response while authentication was assuming a zero-terminated challenge
2992 string. It's now changed to take a pointer and a length, to allow for
2993 binary data in such strings.
2994
299522. Added the cyrus_sasl authenticator (code supplied by MBM).
2996
299723. Exim was not respecting finduser_retries when seeking the login of the
2998 uid under which it was called; it was always trying 10 times. (The default
2999 setting of finduser_retries is zero.) Also, it was sleeping after the final
3000 failure, which is pointless.
3001
300224. Implemented tls_on_connect_ports.
3003
300425. Implemented acl_smtp_predata.
3005
300626. If the domain in control=submission is set empty, Exim assumes that the
3007 authenticated id is a complete email address when it generates From: or
3008 Sender: header lines.
3009
301027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3011 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3012 chown and chgrp in /bin and hostname in /usr/bin.
3013
301428. Exim was keeping the "process log" file open after each use, just as it
3015 does for the main log. This opens the possibility of it remaining open for
3016 long periods when the USR1 signal hits a daemon. Occasional processlog
3017 errors were reported, that could have been caused by this. Anyway, it seems
3018 much more sensible not to leave this file open at all, so that is what now
3019 happens.
3020
302129. The long-running daemon process does not normally write to the log once it
3022 has entered its main loop, and it closes the log before doing so. This is
3023 so that log files can straightforwardly be renamed and moved. However,
3024 there are a couple of unusual error situations where the daemon does write
3025 log entries, and I had neglected to close the log afterwards.
3026
302730. The text of an SMTP error response that was received during a remote
3028 delivery was being truncated at 512 bytes. This is too short for some of
3029 the long messages that one sometimes sees. I've increased the limit to
3030 1024.
3031
303231. It is now possible to make retry rules that apply only when a message has a
3033 specific sender, in particular, an empty sender.
3034
303532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3036 it possible to be selective about when SMTP synchronization is enforced.
3037
303833. Added "control = caseful_local_part" and "control = "caselower_local_part".
3039
304032. Implemented hosts_connection_nolog.
3041
304233. Added an ACL for QUIT.
3043
304434. Setting "delay_warning=" to disable warnings was not working; it gave a
3045 syntax error.
3046
304735. Added mailbox_size and mailbox_filecount to appendfile.
3048
304936. Added control = no_multiline_responses to ACLs.
3050
305137. There was a bug in the logic of the code that waits for the clock to tick
3052 in the case where the clock went backwards by a substantial amount such
3053 that the microsecond fraction of "now" was more than the microsecond
3054 fraction of "then" (but the whole seconds number was less).
3055
305638. Added support for the libradius Radius client library this is found on
3057 FreeBSD (previously only the radiusclient library was supported).
3058
3059
3060Exim version 4.42
3061-----------------
3062
3063 1. When certain lookups returned multiple values in the form name=value, the
3064 quoting of the values was not always being done properly. Specifically:
3065 (a) If the value started with a double quote, but contained no whitespace,
3066 it was not quoted.
3067 (b) If the value contained whitespace other than a space character (i.e.
3068 tabs or newlines or carriage returns) it was not quoted.
3069 This fix has been applied to the mysql and pgsql lookups by writing a
3070 separate quoting function and calling it from the lookup code. The fix
3071 should probably also be applied to nisplus, ibase and oracle lookups, but
3072 since I cannot test any of those, I have not disturbed their existing code.
3073
3074 2. A hit in the callout cache for a specific address caused a log line with no
3075 reason for rejecting RCPT. Now it says "Previous (cached) callout
3076 verification failure".
3077
3078 3. There was an off-by-one bug in the queryprogram router. An over-long
3079 return line was truncated at 256 instead of 255 characters, thereby
3080 overflowing its buffer with the terminating zero. As well as fixing this, I
3081 have increased the buffer size to 1024 (and made a note to document this).
3082
3083 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3084 when Exim is waiting for an SMTP response from a remote server, Exim
3085 restarts its select() call on the socket, thereby resetting its timeout.
3086 This is not a problem when such interrupts are rare. Somebody set up a cron
3087 job to run exiwhat every 2 minutes, which is less than the normal select()
3088 timeout (5 or 10 minutes). This meant that the select() timeout never
3089 kicked in because it was always reset. I have fixed this by comparing the
3090 time when an interrupt arrives with the time at the start of the first call
3091 to select(). If more time than the timeout has elapsed, the interrupt is
3092 treated as a timeout.
3093
3094 5. Some internal re-factoring in preparation for the addition of Sieve
3095 extensions (by MH). In particular, the "personal" test is moved to a
3096 separate function, and given an option for scanning Cc: and Bcc: (which is
3097 not set for Exim filters).
3098
3099 6. When Exim created an email address using the login of the caller as the
3100 local part (e.g. when creating a From: or Sender: header line), it was not
3101 quoting the local part when it contained special characters such as @.
3102
3103 7. Installed new OpenBSD configuration files.
3104
3105 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3106 try to make them clearer.
3107
3108 9. Callout options, other than the timeout value, were being ignored when
3109 verifying sender addresses in header lines. For example, when using
3110
3111 verify = header_sender/callout=no_cache
3112
3113 the cache was (incorrectly) being used.
3114
311510. Added a missing instance of ${EXE} to the exim_install script; this affects
3116 only the Cygwin environment.
3117
311811. When return_path_on_delivery was set as a log selector, if different remote
3119 addresses in the same message used different return paths and parallel
3120 remote delivery occurred, the wrong values would sometimes be logged.
3121 (Whenever a remote delivery process finished, the return path value from
3122 the most recently started remote delivery process was logged.)
3123
312412. RFC 3848 specifies standard names for the "with" phrase in Received: header
3125 lines when AUTH and/or TLS are in use. This is the "received protocol"
3126 field. Exim used to use "asmtp" for authenticated SMTP, without any
3127 indication (in the protocol name) for TLS use. Now it follows the RFC and
3128 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3129 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3130 names appear in log lines as well as in Received: header lines.
3131
313213. Installed MH's patches for Sieve to add the "copy" and "vacation"
3133 extensions, and comparison tests, and to fix some bugs.
3134
313514. Changes to the "personal" filter test:
3136
3137 (1) The test was buggy in that it was just doing the equivalent of
3138 "contains" tests on header lines. For example, if a user's address was
3139 anne@some.where, the "personal" test would incorrectly be true for
3140
3141 To: susanne@some.where
3142
3143 This test is now done by extracting each address from the header in turn,
3144 and checking the entire address. Other tests that are part of "personal"
3145 are now done using regular expressions (for example, to check local parts
3146 of addresses in From: header lines).
3147
3148 (2) The list of non-personal local parts in From: addresses has been
3149 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3150 taken from the Sieve specification recommendations.
3151
3152 (3) If the message contains any header line starting with "List-" it is
3153 treated as non-personal.
3154
3155 (4) The test for "circular" in the Subject: header line has been removed
3156 because it now seems ill-conceived.
3157
315815. Minor typos in src/EDITME comments corrected.
3159
316016. Installed latest exipick from John Jetmore.
3161
316217. If headers_add on a router specified a text string that was too long for
3163 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3164 of string_sprintf() is now avoided.
3165
316618. $message_body_size was not set (it was always zero) when running the DATA
3167 ACL and the local_scan() function.
3168
316919. For the "mail" command in an Exim filter, no default was being set for
3170 the once_repeat time, causing a random time value to be used if "once" was
3171 specified. (If the value happened to be <= 0, no repeat happened.) The
3172 default is now 0s, meaning "never repeat". The "vacation" command was OK
3173 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3174 (I found it when inspecting the code).
3175
317620. There is now an overall timeout for performing a callout verification. It
3177 defaults to 4 times the callout timeout, which applies to individual SMTP
3178 commands during the callout. The overall timeout applies when there is more
3179 than one host that can be tried. The timeout is checked before trying the
3180 next host. This prevents very long delays if there are a large number of
3181 hosts and all are timing out (e.g. when the network connections are timing
3182 out). The value of the overall timeout can be changed by specifying an
3183 additional sub-option for "callout", called "maxwait". For example:
3184
3185 verify = sender/callout=5s,maxwait=20s
3186
318721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3188 to the end before writing, but this should make it even safer).
3189
319022. Exim was forgetting that it had advertised PIPELINING for the second and
3191 subsequent messages on an SMTP connection. It was also not resetting its
3192 memory on STARTTLS and an internal HELO.
3193
319423. When Exim logs an SMTP synchronization error within a session, it now
3195 records whether PIPELINING has been advertised or not.
3196
319724. Added 3 instances of "(long int)" casts to time_t variables that were being
3198 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3199 rather than long int.
3200
320125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3202
320326. Added the never_mail option to autoreply.
3204
3205
3206Exim version 4.41
3207-----------------
3208
3209 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3210 crash if the getsockname() call failed; this can happen if a connection is
3211 closed very soon after it is established. The problem was simply in the
3212 order in which certain operations were done, causing Exim to try to write
3213 to the SMTP stream before it had set up the file descriptor. The bug has
3214 been fixed by making things happen in the correct order.
3215
3216
3217Exim version 4.40
3218-----------------
3219
3220 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3221 before the connection was closed, thus losing the rejection response.
3222
3223 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3224 some early Solaris releases, but causes trouble in current releases where
3225 socklen_t is defined.
3226
3227 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3228 always exist.
3229
3230 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3231 configured.
3232
3233 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3234 that releasing the top of it at the end releases what was used for sub-
3235 expansions (unless the block got too big). However, discard this block if
3236 the first thing is a variable or header, so that we can use its block when
3237 it is dynamic (useful for very large $message_headers, for example).
3238
3239 6. Lookups now cache *every* query, not just the most recent. A new, separate
3240 store pool is used for this. It can be recovered when all lookup caches are
3241 flushed. Lookups now release memory at the end of their result strings.
3242 This has involved some general refactoring of the lookup sources.
3243
3244 7. Some code has been added to the store_xxx() functions to reduce the amount
3245 of flapping under certain conditions.
3246
3247 8. log_incoming_interface used to affect only the <= reception log lines. Now
3248 it causes the local interface and port to be added to several more SMTP log
3249 lines, for example "SMTP connection from", and rejection lines.
3250
3251 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3252
325310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3254
325511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3256 could be overwritten at the end of the current message (or the start of a
3257 new message if it was set in a HELO ACL). The value is now preserved for
3258 the duration of the SMTP connection.
3259
326012. If a transport had a headers_rewrite setting, and a matching header line
3261 contained an unqualified address, that address was qualified, even if it
3262 did not match any rewriting rules. The underlying bug was that the values
3263 of the flags that permit the existence of unqualified sender and recipient
3264 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3265 non-local messages, and by -bnq for local messages) were not being
3266 preserved with the message after it was received.
3267
326813. When Exim was logging an SMTP synchronization error, it could sometimes log
3269 "next input=" as part of the text comprising the host identity instead of
3270 the correct text. The code was using the same buffer for two different
3271 strings. However, depending on which order the printing function evaluated
3272 its arguments, the bug did not always show up. Under Linux, for example, my
3273 test suite worked just fine.
3274
327514. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3276 doesn't work with some older versions of Perl. It has been changed to "my",
3277 which in any case is probably the better facility to use.
3278
327915. A really picky compiler found some instances of statements for creating
3280 error messages that either had too many or two few arguments for the format
3281 string.
3282
328316. The size of the buffer for calls to the DNS resolver has been increased
3284 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3285 for addresses that have a lot of PTR records. This alleviates a problem; it
3286 does not fully solve it.
3287
328817. A dnsdb lookup for PTR records that receives more data than will fit in the
3289 buffer now truncates the list and logs the incident, which is the same
3290 action as happens when Exim is looking up a host name and its aliases.
3291 Previously in this situation something unpredictable would happen;
3292 sometimes it was "internal error: store_reset failed".
3293
329418. If a server dropped the connection unexpectedly when an Exim client was
3295 using GnuTLS and trying to read a response, the client delivery process
3296 crashed while trying to generate an error log message.
3297
329819. If a "warn" verb in an ACL added multiple headers to a message in a single
3299 string, for example:
3300
3301 warn message = H1: something\nH2: something
3302
3303 the text was added as a single header line from Exim's point of view
3304 though it ended up OK in the delivered message. However, searching for the
3305 second and subsequent header lines using $h_h2: did not work. This has been
3306 fixed. Similarly, if a system filter added multiple headers in this way,
3307 the routers could not see them.
3308
330920. Expanded the error message when iplsearch is called with an invalid key to
3310 suggest using net-iplsearch in a host list.
3311
331221. When running tests using -bh, any delays imposed by "delay" modifiers in
3313 ACLs are no longer actually imposed (and a message to that effect is
3314 output).
3315
331622. If a "gecos" field in a passwd entry contained escaped characters, in
3317 particular, if it contained a \" sequence, Exim got it wrong when building
3318 a From: or a Sender: header from that name. A second bug also caused
3319 incorrect handling when an unquoted " was present following a character
3320 that needed quoting.
3321
332223. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3323 was not being matched caselessly.
3324
332524. Arranged for all hyphens in the exim.8 source to be escaped with
3326 backslashes.
3327
332825. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3329 properly. Recipient callout cache records were still being keyed to include
3330 the sender, even when use_sender was set false. This led to far more
3331 callouts that were necessary. The sender is no longer included in the key
3332 when use_sender is false.
3333
333426. Added "control = submission" modifier to ACLs.
3335
333627. Added the ${base62d: operator to decode base 62 numbers.
3337
333828. dnsdb lookups can now access SRV records.
3339
334029. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3341 the configuration file.
3342
334330. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3344 (-v) mode. This makes the output for a verbose queue run more intelligible.
3345
334631. Added a use_postmaster feature to recipient callouts.
3347
334832. Added the $body_zerocount variable, containing the number of binary zero
3349 bytes in the message body.
3350
335133. The time of last modification of the "new" subdirectory is now used as the
3352 "mailbox time last read" when there is a quota error for a maildir
3353 delivery.
3354
335534. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3356
335735. Added +ignore_unknown as a special item in host lists.
3358
335936. Code for decoding IPv6 addresses in host lists is now included, even if
3360 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3361 address was recognized as an IP address, but was then not correctly decoded
3362 into binary, causing unexpected and incorrect effects when compared with
3363 another IP address.
3364
3365
3366Exim version 4.34
3367-----------------
3368
3369 1. Very minor rewording of debugging text in manualroute to say "list of
3370 hosts" instead of "hostlist".
3371
3372 2. If verify=header_syntax was set, and a header line with an unqualified
3373 address (no domain) and a large number of spaces between the end of the
3374 name and the colon was received, the reception process suffered a buffer
3375 overflow, and (when I tested it) crashed. This was caused by some obsolete
3376 code that should have been removed. The fix is to remove it!
3377
3378 3. When running in the test harness, delay a bit after writing a bounce
3379 message to get a bit more predictability in the log output.
3380
3381 4. Added a call to search_tidyup() just before forking a reception process. In
3382 theory, someone could use a lookup in the expansion of smtp_accept_max_
3383 per_host which, without the tidyup, could leave open a database connection.
3384
3385 5. Added the variables $recipient_data and $sender_data which get set from a
3386 lookup success in an ACL "recipients" or "senders" condition, or a router
3387 "senders" option, similar to $domain_data and $local_part_data.
3388
3389 6. Moved the writing of debug_print from before to after the "senders" test
3390 for routers.
3391
3392 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3393 problems for message scanning, either using a data ACL, or using
3394 local_scan() because the Received: header was not generated till after they
3395 were called (in order to set the time as the time of reception completion).
3396 I have revised the way this works. The header is now generated after the
3397 body is received, but before the ACL or local_scan() are called. After they
3398 are run, the timestamp in the header is updated.
3399
3400
3401Exim version 4.33
3402-----------------
3403
3404 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3405 before starting a queue runner without re-exec. This happened only when
3406 deliver_drop_privilege was set or when the Exim user was set to root. The
3407 effect of the bug was that timeouts during subsequent deliveries caused
3408 crashes instead of being properly handled. The handler is now left at its
3409 default (and expected) setting.
3410
3411 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3412 message, again when deliver_drop_privilege is set or Exim is run as root.
3413 The bug described in (1) was not present in this case, but the tidying up
3414 of the other signals was missing. I have made the two cases consistent.
3415
3416 3. The ignore_target_hosts setting on a manualroute router was being ignored
3417 for hosts that were looked up using the /MX notation.
3418
3419 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3420 in domain lists.
3421
3422 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3423 operated on the sender address. After changing the $sender_address to <>
3424 for the sender address verify, Exim was re-instated it as the original
3425 (before rewriting) address, but remembering that it had rewritten it, so it
3426 wasn't rewriting it again. This bug also had the effect of breaking the
3427 sender address verification caching when the sender address was rewritten.
3428
3429 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3430 This has been changed so that if the ip literal address matches
3431 ignore_target_hosts, the router declines.
3432
3433 7. Added expansion conditions match_domain, match_address, and match_local_
3434 part (NOT match_host).
3435
3436 8. The placeholder for the Received: header didn't have a length field set.
3437
3438 9. Added code to Exim itself and to exim_lock to test for a specific race
3439 condition that could lead to file corruption when using MBX delivery. The
3440 issue is with the lockfile that is created in /tmp. If this file is removed
3441 after a process has opened it but before that process has acquired a lock,
3442 there is the potential for a second process to recreate the file and also
3443 acquire a lock. This could lead to two Exim processes writing to the file
3444 at the same time. The added code performs the same test as UW imapd; it
3445 checks after acquiring the lock that its file descriptor still refers to
3446 the same named file.
3447
344810. The buffer for building added header lines was of fixed size, 8192 bytes.
3449 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3450 when Exim is built.
3451
345211. Added the smtp_active_hostname option. If used, this will typically be made
3453 to depend on the incoming interface address. Because $interface_address is
3454 not set up until the daemon has forked a reception process, error responses
3455 that can happen earlier (such as "too many connections") no longer contain
3456 a host name.
3457
345812. If an expansion in a condition on a "warn" statement fails because a lookup
3459 defers, the "warn" statement is abandoned, and the next ACL statement is
3460 processed. Previously this caused the whole ACL to be aborted.
3461
346213. Added the iplsearch lookup type.
3463
346414. Added ident_timeout as a log selector.
3465
346615. Added tls_certificate_verified as a log selector.
3467
346816. Added a global option tls_require_ciphers (compare the smtp transport
3469 option of the same name). This controls incoming TLS connections.
3470
347117. I finally figured out how to make tls_require_ciphers do a similar thing
3472 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3473 before starting the TLS session.
3474
347518. Tabs are now shown as \t in -bP output.
3476
347719. If the log selector return_path_on_delivery was set, Exim crashed when
3478 bouncing a message because it had too many Received: header lines.
3479
348020. If two routers both had headers_remove settings, and the first one included
3481 a superfluous trailing colon, the final name in the first list and the
3482 first name in the second list were incorrectly joined into one item (with a
3483 colon in the middle).
3484
3485
3486Exim version 4.32
3487-----------------
3488
3489 1. Added -C and -D options to the exinext utility, mainly to make it easier
3490 to include in the automated testing, but these could be helpful when
3491 multiple configurations are in use.
3492
3493 2. The exinext utility was not formatting the output nicely when there was
3494 an alternate port involved in the retry record key, nor when there was a
3495 message id as well (for retries that were specific to a specific message
3496 and a specific host). It was also confused by IPv6 addresses, because of
3497 the additional colons they contain. I have fixed the IPv4 problem, and
3498 patched it up to do a reasonable job for IPv6.
3499
3500 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3501 delivery, the log line now contains "pipelined" if PIPELINING was used.
3502
3503 4. An SMTP transport process used to panic and die if the bind() call to set
3504 an explicit outgoing interface failed. This has been changed; it is now
3505 treated in the same way as a connect() failure.
3506
3507 5. A reference to $sender_host_name in the part of a conditional expansion
3508 that was being skipped was still causing a DNS lookup. This no longer
3509 occurs.
3510
3511 6. The def: expansion condition was not recognizing references to header lines
3512 that used bh_ and bheader_.
3513
3514 7. Added the _cache feature to named lists.
3515
3516 8. The code for checking quota_filecount in the appendfile transport was
3517 allowing one more file than it should have been.
3518
3519 9. For compatibility with Sendmail, the command line option
3520
3521 -prval:sval
3522
3523 is equivalent to
3524
3525 -oMr rval -oMs sval
3526
3527 and sets the incoming protocol and host name (for trusted callers). The
3528 host name and its colon can be omitted when only the protocol is to be set.
3529 Note the Exim already has two private options, -pd and -ps, that refer to
3530 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3531 "s", but I don't think that's a major issue.
3532
353310. A number of refactoring changes to the code, none of which should affect
3534 Exim's behaviour:
3535
3536 (a) The number of logging options was getting close to filling up the
3537 32-bit word that was used as a bit map. I have split them into two classes: