Documentation correction to quote_mysql example. fixes: bug #766
[exim.git] / doc / doc-txt / ChangeLog
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e276e04b 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.553 2008/09/05 16:59:47 fanf2 Exp $
495ae4b0
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
210f147e
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6Exim version 4.70
7-----------------
8
cdd3bb85
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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
TF
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
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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
6c588e74
NM
54NM/05 Bugzilla 598: Improvedment to Dovecot authenticator handling.
55 Patch provided by Jan Srzednicki
56
89dec7b6
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57TF/05 Leading white space used to be stripped from $spam_report which
58 wrecked the formatting. Now it is preserved.
5f28a6e8 59
a99de90c
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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
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68TF/09 Produce a more useful error message if an SMTP transport's hosts
69 setting expands to an empty string.
70
deafd5b3 71
47db1125
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72Exim version 4.69
73-----------------
74
4b3504d0
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75TK/01 Add preliminary DKIM support. Currently requires a forked version of
76 ALT-N's libdkim that I have put here:
77 http://duncanthrax.net/exim-experimental/
78
79 Note to Michael Haardt: I had to rename some vars in sieve.c. They
80 were called 'true' and it seems that C99 defines that as a reserved
81 keyword to be used with 'bool' variable types. That means you could
82 not include C99-style headers which use bools without triggering
83 build errors in sieve.c.
84
81ea09ca
NM
85NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
86 as mailq or other aliases. Changed the --help handling significantly
87 to do whats expected. exim_usage() emits usage/help information.
88
f13cddcb
SC
89SC/01 Added the -bylocaldomain option to eximstats.
90
8ad076b2
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91NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
92
a843aaa6
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93NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
94
47db1125
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95NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
96
97
eb4c0de6
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98Exim version 4.68
99-----------------
100
101PH/01 Another patch from the Sieve maintainer.
102
6a3bceb1
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103PH/02 When an IPv6 address is converted to a string for single-key lookup
104 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
105 dots are used instead of colons so that keys in lsearch files need not
106 contain colons. This was done some time before quoting was made available
107 in lsearch files. However, iplsearch files do require colons in IPv6 keys
108 (notated using the quote facility) so as to distinguish them from IPv4
109 keys. This meant that lookups for IP addresses in host lists did not work
110 for iplsearch lookups.
111
112 This has been fixed by arranging for IPv6 addresses to be expressed with
113 colons if the lookup type is iplsearch. This is not incompatible, because
114 previously such lookups could never work.
115
116 The situation is now rather anomolous, since one *can* have colons in
117 ordinary lsearch keys. However, making the change in all cases is
118 incompatible and would probably break a number of configurations.
119
2e30fa9d
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120TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
121 version.
122
0806a9c5
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123MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
124 conversion specification without a maximum field width, thereby enabling
125 a rogue spamd server to cause a buffer overflow. While nobody in their
126 right mind would setup Exim to query an untrusted spamd server, an
127 attacker that gains access to a server running spamd could potentially
128 exploit this vulnerability to run arbitrary code as the Exim user.
129
ae276964
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130TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
131 $primary_hostname instead of what libspf2 thinks the hosts name is.
132
0f2cbd1b
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133MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
134 a directory entry by the name of the lookup key. Previously, if a
135 symlink pointed to a non-existing file or a file in a directory that
136 Exim lacked permissions to read, a lookup for a key matching that
137 symlink would fail. Now it is enough that a matching directory entry
138 exists, symlink or not. (Bugzilla 503.)
139
2b85bce7
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140PH/03 The body_linecount and body_zerocount variables are now exported in the
141 local_scan API.
142
93655c46
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143PH/04 Added the $dnslist_matched variable.
144
6c512171
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145PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
146 This means they are set thereafter only if the connection becomes
147 encrypted.
148
149PH/06 Added the client_condition to authenticators so that some can be skipped
150 by clients under certain conditions.
151
aa6dc513
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152PH/07 The error message for a badly-placed control=no_multiline_responses left
153 "_responses" off the end of the name.
154
a96603a0
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155PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
156
8f240103
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157PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
158 (without spaces) instead of just copying the configuration text.
159
160PH/10 Added the /noupdate option to the ratelimit ACL condition.
161
d677b2f2
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162PH/11 Added $max_received_linelength.
163
d52120f2
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164PH/12 Added +ignore_defer and +include_defer to host lists.
165
64f2600a
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166PH/13 Installed PCRE version 7.2. This needed some changes because of the new
167 way in which PCRE > 7.0 is built.
168
8669f003
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169PH/14 Implemented queue_only_load_latch.
170
a4dc33a8
PH
171PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
172 MAIL command. The effect was to mangle the value on 64-bit systems.
173
d6a60c0f
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174PH/16 Another patch from the Sieve maintainer.
175
8f128379
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176PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
177
8932dffe
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178PH/18 If a system quota error occurred while trying to create the file for
179 a maildir delivery, the message "Mailbox is full" was not appended to the
180 bounce if the delivery eventually timed out. Change 4.67/27 below applied
181 only to a quota excession during the actual writing of the file.
d6a60c0f 182
ddea74fa 183PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
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184 characters?) which causes problems in log lines. The DN values are now
185 passed through string_printing() before being added to log lines.
186
ddea74fa 187PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
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188 and InterBase are left for another time.)
189
ddea74fa
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190PH/21 Added message_body_newlines option.
191
ce9f225c
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192PH/22 Guard against possible overflow in moan_check_errorcopy().
193
19897d52
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194PH/23 POSIX allows open() to be a macro; guard against that.
195
bc64a74d
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196PH/24 If the recipient of an error message contained an @ in the local part
197 (suitably quoted, of course), incorrect values were put in $domain and
198 $local_part during the evaluation of errors_copy.
199
eb4c0de6 200
b4ed4da0
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201Exim version 4.67
202-----------------
203
22ad45c9
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204MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
205 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
206 Jan Srzednicki.
207
b4ed4da0
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208PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
209 issue a MAIL command.
210
431b7361
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211PH/02 In an ACL statement such as
212
213 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
214
215 if a client was not listed at all, or was listed with a value other than
216 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
217 the condition was not true (as it should be), so access was not denied.
218 The bug was that the ! inversion was incorrectly passed on to the second
219 item. This has been fixed.
220
221PH/03 Added additional dnslists conditions == and =& which are different from
222 = and & when the dns lookup returns more than one IP address.
223
83da1223
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224PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
225 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
226
54fc8428
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227PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
228 FSYNC, which compiles an option called disable_fsync that allows for
229 bypassing fsync(). The documentation is heavily laced with warnings.
230
34c5e8dd
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231SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
232
bbe15da8
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233PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
234 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
235 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
236 including adding "make clean"; (3) Added -fPIC when compiling the test
237 dynamically loaded module, to get rid of a warning.
238
0e8a9471
MH
239MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
240 message fails, move_frozen_messages = true and ignore_bounce_errors_after
241 = 0s. The bug is otherwise harmless.
242
f0872424
PH
243PH/07 There was a bug in the dovecot authenticator such that the value of
244 $auth1 could be overwritten, and so not correctly preserved, after a
245 successful authentication. This usually meant that the value preserved by
246 the server_setid option was incorrect.
247
b01dd148
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248PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
249
6bf342e1
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250PH/09 Installed PCRE release 7.0.
251
273f34d0
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252PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
253 run for batched SMTP input. It is now run at the start of every message
254 in the batch. While fixing this I discovered that the process information
255 (output by running exiwhat) was not always getting set for -bs and -bS
256 input. This is fixed, and it now also says "batched" for BSMTP.
257
cf8b11a5
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258PH/11 Added control=no_pipelining.
259
41c7c167
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260PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
261 patch, slightly modified), and move the expansion of helo_data till after
262 the connection is made in the smtp transport (so it can use these
263 values).
264
9c57cbc0
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265PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
266
f3f065bb
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267PH/14 Added log_selector = +pid.
268
047bdd8c
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269PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
270
0ce9abe6
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271PH/16 Add ${if forany and ${if forall.
272
0e22dfd1
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273PH/17 Added dsn_from option to vary the From: line in DSNs.
274
4c590bd1
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275PH/18 Flush SMTP output before performing a callout, unless control =
276 no_callout_flush is set.
277
09945f1e
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278PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
279 was true (the default) a successful delivery failed to delete the retry
280 item, thus causing premature timeout of the address. The bug is now
281 fixed.
282
c51b8e75
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283PH/20 Added hosts_avoid_pipelining to the smtp transport.
284
e28326d8
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285PH/21 Long custom messages for fakedefer and fakereject are now split up
286 into multiline reponses in the same way that messages for "deny" and
287 other ACL rejections are.
288
75b1493f
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289PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
290 with slight modification.
291
7c5214ec
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292PH/23 Applied sieve patches from the maintainer "tracking the latest notify
293 draft, changing the syntax and factoring some duplicate code".
294
4311097e
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295PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
296 for deliveries of the second and subsequent messages over the same SMTP
297 connection.
298
29f89cad
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299PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
300 ${reduce, with only minor "tidies".
301
5e687460
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302SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
303
c3611384
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304PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
305 expansion side effects.
306
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307PH/27 When a message times out after an over-quota error from an Exim-imposed
308 quota, the bounce message says "mailbox is full". This message was not
309 being given when it was a system quota that was exceeded. It now should
310 be the same.
311
0e20aff9
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312MH/03 Made $recipients available in local_scan(). local_scan() already has
313 better access to the recipient list through recipients_list[], but
314 $recipients can be useful in postmaster-provided expansion strings.
315
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316PH/28 The $smtp_command and $smtp_command_argument variables were not correct
317 in the case of a MAIL command with additional options following the
318 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
319 were accidentally chopped off.
320
a14e5636
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321PH/29 SMTP synchronization checks are implemented when a command is read -
322 there is a check that no more input is waiting when there shouldn't be
323 any. However, for some commands, a delay in an ACL can mean that it is
324 some time before the response is written. In this time, more input might
325 arrive, invalidly. So now there are extra checks after an ACL has run for
326 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
327 pipelining has not been advertised.
328
ec95d1a6
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329PH/30 MH's patch to allow iscntrl() characters to be list separators.
330
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331PH/31 Unlike :fail:, a custom message specified with :defer: was not being
332 returned in the SMTP response when smtp_return_error_details was false.
333 This has been fixed.
334
57c2c631
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335PH/32 Change the Dovecot authenticator to use read() and write() on the socket
336 instead of the C I/O that was originally supplied, because problems were
337 reported on Solaris.
338
58c01c94
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339PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
340 Exim which did not show up earlier: it was assuming that a call to
341 SSL_CTX_set_info_callback() might give an error value. In fact, there is
342 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
343 was a macro that became an assignment, so it seemed to work. This has
344 changed to a proper function call with a void return, hence the compile
345 error. Exim's code has been fixed.
346
dee5a20a
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347PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
348 cpus.
349
d2ee6114
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350PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
351
b2d5182b
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352PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
353
79749a79
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354PH/37 If a message is not accepted after it has had an id assigned (e.g.
355 because it turns out to be too big or there is a timeout) there is no
3ce62588
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356 "Completed" line in the log. When some messages of this type were
357 selected by exigrep, they were listed as "not completed". Others were
358 picked up by some special patterns. I have improved the selection
359 criteria to be more general.
79749a79 360
c456d9bb
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361PH/38 The host_find_failed option in the manualroute router can now be set
362 to "ignore", to completely ignore a host whose IP address cannot be
363 found. If all hosts are ignored, the behaviour is controlled by the new
364 host_all_ignored option.
365
cd9868ec
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366PH/39 In a list of hosts for manualroute, if one item (either because of multi-
367 homing or because of multiple MX records with /mx) generated more than
368 one IP address, and the following item turned out to be the local host,
369 all the secondary addresses of the first item were incorrectly removed
370 from the list, along with the local host and any following hosts (which
371 is what is supposed to happen).
372
ebeaf996
PH
373PH/40 When Exim receives a message, it writes the login name, uid, and gid of
374 whoever called Exim into the -H file. In the case of the daemon it was
375 behaving confusingly. When first started, it used values for whoever
376 started the daemon, but after a SIGHUP it used the Exim user (because it
377 calls itself on a restart). I have changed the code so that it now always
378 uses the Exim user.
379
2679d413
PH
380PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
381 message are rejected with the same error (e.g. no authentication or bad
382 sender address), and a DATA command is nevertheless sent (as can happen
383 with PIPELINING or a stupid MUA), the error message that was given to the
384 RCPT commands is included in the rejection of the DATA command. This is
385 intended to be helpful for MUAs that show only the final error to their
386 users.
387
84024b72
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388PH/42 Another patch from the Sieve maintainer.
389
8005d38e
SC
390SC/02 Eximstats - Differentiate between permanent and temporary rejects.
391 Eximstats - Fixed some broken HTML links and added missing column headers
392 (Jez Hancock).
393 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
394 columns for Rejects, Temp Rejects, Ham, and Spam rows.
395
3298c6c6
SC
396SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
397
a43a27c5
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398PH/43 Yet another patch from the Sieve maintainer.
399
58eb016e 400PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
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401 the response to the final '.' that terminates a message, but only in the
402 case where the client has not sent further data following the '.'
403 (unfortunately, this is allowed). However, in many cases there won't be
404 any further data because there won't be any more messages to send. A call
405 to select() can be used: if it shows that the input is "ready", there is
406 either input waiting, or the socket has been closed. An attempt to read
407 the next input character can distinguish the two cases. Previously, Exim
58eb016e 408 would have sent an OK response which the client would never have see.
563b63fa
PH
409 This could lead to message repetition. This fix should cure that, at
410 least in a lot of common cases.
58eb016e 411
b43a74ea
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412PH/45 Do not advertise STARTTLS in response to HELP unless it would be
413 advertised in response to EHLO.
414
b4ed4da0 415
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416Exim version 4.66
417-----------------
418
419PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
420 fixed by 4.65/MH/01 (is this a record?) are fixed:
421
422 (i) An empty string was always treated as zero by the numeric comparison
423 operators. This behaviour has been restored.
424
425 (ii) It is documented that the numeric comparison operators always treat
426 their arguments as decimal numbers. This was broken in that numbers
427 starting with 0 were being interpreted as octal.
428
429 While fixing these problems I realized that there was another issue that
430 hadn't been noticed. Values of message_size_limit (both the global option
431 and the transport option) were treated as octal if they started with 0.
432 The documentation was vague. These values are now always treated as
433 decimal, and I will make that clear in the documentation.
434
435
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436Exim version 4.65
437-----------------
438
439TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
440 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
441 versions. (#438)
442
d6066548
MH
443MH/01 Don't check that the operands of numeric comparison operators are
444 integers when their expansion is in "skipping" mode (fixes bug
445 introduced by 4.64-PH/07).
446
4362ff0d
PH
447PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
448 child addresses, Exim now panics and dies. Previously, because the count
449 is held in a short int, deliveries were likely to be lost. As such a
450 large number of recipients for a single message is ridiculous
451 (performance will be very, very poor), I have chosen to impose a limit
452 rather than extend the field.
453
93cfa765 454
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TF
455Exim version 4.64
456-----------------
aa41d2de 457
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458TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
459 leftover -K file (the existence of which was triggered by #402).
460 While we were at it, introduced process PID as part of the -K
461 filename. This should rule out race conditions when creating
462 these files.
463
464TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
465 processing considerably. Previous code took too long for large mails,
466 triggering a timeout which in turn triggers #401.
467
468TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
469 in the DK code in transports.c. sendfile() is not really portable,
470 hence the _LINUX specificness.
944e9e9c
TF
471
472TF/01 In the add_headers option to the mail command in an Exim filter,
473 there was a bug that Exim would claim a syntax error in any
474 header after the first one which had an odd number of characters
475 in the field name.
476
2b1c6e3a
PH
477PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
478 callout verification, Exim cached a "reject" for the entire domain. This
479 is correct for most verifications, but it is not correct for a recipient
480 verification with use_sender or use_postmaster set, because in that case
481 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
482 case of MAIL FROM:<> rejection from other early rejections (e.g.
483 rejection of HELO). When verifying a recipient using a non-null MAIL
484 address, the cache is ignored if it shows MAIL FROM:<> rejection.
485 Whatever the result of the callout, the value of the domain cache is
486 left unchanged (for any other kind of callout, getting as far as trying
487 RCPT means that the domain itself is ok).
488
1f872c80
PH
489PH/02 Tidied a number of unused variable and signed/unsigned warnings that
490 gcc 4.1.1 threw up.
491
492PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
493 manifest itself as EPIPE rather than ECONNECT. When tidying away a
494 session, the daemon ignores ECONNECT errors and logs others; it now
495 ignores EPIPE as well.
496
d203e649
PH
497PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
498 (quoted-printable decoding).
499
cc2ed8f7 500PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 501 later the small subsequent patch to fix an introduced bug.
f951fd57 502
ddfcd446
PH
503PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
504
d45b1de8
PH
505PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
506
507PH/08 An error is now given if message_size_limit is specified negative.
508
38a0a95f 509PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 510 to be given (somewhat) arbitrary names.
38a0a95f 511
a2405d83
JJ
512JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
513 in 4.64-PH/09.
514
515JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
516 miscellaneous code fixes
517
6ea85e9a
PH
518PH/10 Added the log_reject_target ACL modifier to specify where to log
519 rejections.
520
26da7e20
PH
521PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
522 hostname. This is wrong, because it relates to the incoming message (and
523 probably the interface on which it is arriving) and not to the outgoing
524 callout (which could be using a different interface). This has been
525 changed to use the value of the helo_data option from the smtp transport
526 instead - this is what is used when a message is actually being sent. If
527 there is no remote transport (possible with a router that sets up host
528 addresses), $smtp_active_hostname is used.
6ea85e9a 529
14aa5a05 530PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 531 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
532 (a) The code assumed that strncpy() returns a negative number on buffer
533 overflow, which isn't the case. Replaced with Exim's string_format()
534 function.
535 (b) There were several signed/unsigned issues. I just did the minimum
536 hacking in of casts. There is scope for a larger refactoring.
537 (c) The code used strcasecmp() which is not a standard C function.
538 Replaced with Exim's strcmpic() function.
539 (d) The code set only $1; it now sets $auth1 as well.
540 (e) A simple test gave the error "authentication client didn't specify
541 service in request". It would seem that Dovecot has changed its
542 interface. Fortunately there's a specification; I followed it and
543 changed what the client sends and it appears to be working now.
544
ff75a1f7
PH
545PH/13 Added $message_headers_raw to provide the headers without RFC 2047
546 decoding.
547
e6f6568e
PH
548PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
549 address A is aliased to B and C, where B exists and C does not. Without
550 -v the output is "A verified" because verification stops after a
551 successful redirection if more than one address is generated. However,
552 with -v the child addresses are also verified. Exim was outputting "A
553 failed to verify" and then showing the successful verification for C,
554 with its parentage. It now outputs "B failed to verify", showing B's
555 parentage before showing the successful verification of C.
556
d6f6e0dc
PH
557PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
558 look up a TXT record in a specific list after matching in a combined
559 list.
560
322050c2
PH
561PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
562 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
563 they consult the DNS. I had assumed they would set it the way they
564 wanted; and indeed my experiments on Linux seem to show that in some
565 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
566 To be on the safe side, however, I have now made the interface to
567 host_find_byname() similar to host_find_bydns(), with an argument
568 containing the DNS resolver options. The host_find_byname() function now
569 sets these options at its start, just as host_find_bydns() does. The smtp
570 transport options dns_qualify_single and dns_search_parents are passed to
571 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
572 of host_find_byname() use the default settings of RES_DEFNAMES
573 (qualify_single) but not RES_DNSRCH (search_parents).
574
08955dd3
PH
575PH/17 Applied (a modified version of) Nico Erfurth's patch to make
576 spool_read_header() do less string testing, by means of a preliminary
577 switch on the second character of optional "-foo" lines. (This is
578 overdue, caused by the large number of possibilities that now exist.
579 Originally there were few.) While I was there, I also converted the
580 str(n)cmp tests so they don't re-test the leading "-" and the first
581 character, in the hope this might squeeze out yet more improvement.
582
1eccaa59
PH
583PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
584 flag allowing group syntax was set by the header_syntax check but not
585 turned off, possible causing trouble later; (2) The flag was not being
586 set at all for the header_verify test, causing "group"-style headers to
587 be rejected. I have now set it in this case, and also caused header_
588 verify to ignore an empty address taken from a group. While doing this, I
589 came across some other cases where the code for allowing group syntax
590 while scanning a header line wasn't quite right (mostly, not resetting
591 the flag correctly in the right place). These bugs could have caused
592 trouble for malformed header lines. I hope it is now all correct.
593
602e59e5
PH
594PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
595 with the "reply" argument non-NULL. The code, however (which originally
596 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
597 but it didn't always do it. This confused somebody who was copying the
598 code for some other use. I have removed all the tests.
599
411ef850
PH
600PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
601 feature that was used to support insecure browsers during the U.S. crypto
602 embargo. It requires special client support, and Exim is probably the
603 only MTA that supported it -- and would never use it because real RSA is
604 always available. This code has been removed, because it had the bad
605 effect of slowing Exim down by computing (never used) parameters for the
606 RSA_EXPORT functionality.
607
7befa435
PH
608PH/21 On the advice of Timo Sirainen, added a check to the dovecot
609 authenticator to fail if there's a tab character in the incoming data
610 (there should never be unless someone is messing about, as it's supposed
611 to be base64-encoded). Also added, on Timo's advice, the "secured" option
612 if the connection is using TLS or if the remote IP is the same as the
613 local IP, and the "valid-client-cert option" if a client certificate has
614 been verified.
615
48da4259 616PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
617 authenticators. This can be used for authorization after authentication
618 succeeds. (In the case of plaintext, it servers for both authentication
619 and authorization.)
620
48da4259
PH
621PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
622 if any retry times were supplied.
623
d1d5595c
PH
624PH/24 Exim crashed if verify=helo was activated during an incoming -bs
625 connection, where there is no client IP address to check. In this
626 situation, the verify now always succeeds.
627
0ef732d9
PH
628PH/25 Applied John Jetmore's -Mset patch.
629
328895cc
PH
630PH/26 Added -bem to be like -Mset, but loading a message from a file.
631
fd700877
PH
632PH/27 In a string expansion for a processed (not raw) header when multiple
633 headers of the same name were present, leading whitespace was being
634 removed from all of them, but trailing whitespace was being removed only
635 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
636 before concatenation. Completely empty headers in a concatenation (as
637 before) are ignored.
fd700877 638
8dce1a6f
PH
639PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
640 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
641
17af4a17
PH
642PH/29 [Removed. This was a change that I later backed out, and forgot to
643 correct the ChangeLog entry (that I had efficiently created) before
644 committing the later change.]
f6c332bd
PH
645
646PH/30 Exim was sometimes attempting to deliver messages that had suffered
647 address errors (4xx response to RCPT) over the same connection as other
648 messages routed to the same hosts. Such deliveries are always "forced",
649 so retry times are not inspected. This resulted in far too many retries
650 for the affected addresses. The effect occurred only when there were more
651 hosts than the hosts_max_try setting in the smtp transport when it had
652 the 4xx errors. Those hosts that it had tried were not added to the list
653 of hosts for which the message was waiting, so if all were tried, there
654 was no problem. Two fixes have been applied:
655
656 (i) If there are any address or message errors in an SMTP delivery, none
657 of the hosts (tried or untried) are now added to the list of hosts
658 for which the message is waiting, so the message should not be a
659 candidate for sending over the same connection that was used for a
660 successful delivery of some other message. This seems entirely
661 reasonable: after all the message is NOT "waiting for some host".
662 This is so "obvious" that I'm not sure why it wasn't done
663 previously. Hope I haven't missed anything, but it can't do any
664 harm, as the worst effect is to miss an optimization.
665
666 (ii) If, despite (i), such a delivery is accidentally attempted, the
667 routing retry time is respected, so at least it doesn't keep
668 hammering the server.
669
c1114884
PH
670PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
671 in ${readsocket because some servers need this prod.
672
7a0743eb
PH
673PH/32 Added some extra debug output when updating a wait-xxx database.
674
0d85fa3f
PH
675PH/33 The hint "could be header name not terminated by colon", which has been
676 given for certain expansion errors for a long time, was not being given
677 for the ${if def:h_colon_omitted{... case.
678
1bf43b78
PH
679PH/34 The spec says: "With one important exception, whenever a domain list is
680 being scanned, $domain contains the subject domain." There was at least
681 one case where this was not true.
682
520de300
PH
683PH/35 The error "getsockname() failed: connection reset by peer" was being
684 written to the panic log as well as the main log, but it isn't really
685 panic-worthy as it just means the connection died rather early on. I have
686 removed the panic log writing for the ECONNRESET error when getsockname()
687 fails.
688
48c7f9e2
PH
689PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
690 runs only) independently of the message's sender address. This meant
691 that, if the 4xx error was in fact related to the sender, a different
692 message to the same recipient with a different sender could confuse
693 things. In particualar, this can happen when sending to a greylisting
694 server, but other circumstances could also provoke similar problems.
695 I have changed the default so that the retry time for these errors is now
696 based a combination of the sender and recipient addresses. This change
697 can be overridden by setting address_retry_include_sender=false in the
698 smtp transport.
699
99ea1c86
PH
700PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
701 remote server are returned as part of bounce messages. This was not
702 happening for LMTP over a pipe (the lmtp transport), but now it is the
703 same for both kinds of LMTP.
704
a2042e78
PH
705PH/38 Despite being documented as not happening, Exim was rewriting addresses
706 in header lines that were in fact CNAMEs. This is no longer the case.
707
4fbcfc2e
PH
708PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
709 and queue runs started by the daemon processed all messages. This has
710 been fixed so that -R and -S can now usefully be given with -q<time>.
711
aa41d2de
PH
712PH/40 Import PCRE release 6.7 (fixes some bugs).
713
af561417
PH
714PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
715
3cc66b45
PH
716PH/42 Give an error if -q is specified more than once.
717
194cc0e4
PH
718PH/43 Renamed the variables $interface_address and $interface_port as
719 $received_ip_address and $received_port, to make it clear that these
720 values apply to message reception, and not to the outgoing interface when
721 a message is delivered. (The old names remain recognized, of course.)
722
a401ddaa
PH
723PH/44 There was no timeout on the connect() call when using a Unix domain
724 socket in the ${readsocket expansion. There now is.
725
4e88a19f
PH
726PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
727 be meaningful with "accept".
728
d7d7b289
SC
729SC/01 Eximstats V1.43
730 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
731
732SC/02 Eximstats V1.44
733 Use a glob alias rather than an array ref in the generated
734 parser. This improves both readability and performance.
735
736SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
737 Collect SpamAssassin and rejection statistics.
738 Don't display local sender or destination tables unless
739 there is data to show.
740 Added average volumes into the top table text output.
741
742SC/04 Eximstats V1.46
743 Collect data on the number of addresses (recipients)
744 as well as the number of messages.
745
746SC/05 Eximstats V1.47
747 Added 'Message too big' to the list of mail rejection
748 reasons (thanks to Marco Gaiarin).
749
750SC/06 Eximstats V1.48
751 Mainlog lines which have GMT offsets and are too short to
752 have a flag are now skipped.
753
754SC/07 Eximstats V1.49 (Alain Williams)
755 Added the -emptyok flag.
756
757SC/08 Eximstats V1.50
758 Fixes for obtaining the IP address from reject messages.
759
0ea2a468
JJ
760JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
761 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
762 whitesspace changes from 4.64-PH/27
763
764JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
765 match 4.64-PH/13
766
767JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
768 are found, allow negative numbers in numeric criteria)
769
770JJ/06 exipick.20061117.2, added new $message_body_missing variable
771
772JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
773 to match changes made in 4.64-PH/43
774
8a10f5a4
PH
775PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
776
30e18802
PH
777PH/47 Put in an explicit test for a DNS lookup of an address record where the
778 "domain" is actually an IP address, and force a failure. This locks out
779 those revolvers/nameservers that support "A-for-A" lookups, in
780 contravention of the specifications.
781
55728a4f
PH
782PH/48 When a host name was looked up from an IP address, and the subsequent
783 forward lookup of the name timed out, the host name was left in
784 $sender_host_name, contrary to the specification.
d7d7b289 785
d7837193
PH
786PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
787 restricted to single-key lookups, Exim was not diagnosing an error if
788 * or *@ was used with a query-style lookup.
789
87054a31
PH
790PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
791
ea2c01d2
MH
792MH/01 local_scan ABI version incremented to 1.1. It should have been updated
793 long ago, but noone interested enough thought of it. Let's just say that
794 the "1.1" means that there are some new functions that weren't there at
795 some point in the past.
796
e4fa6968
PH
797PH/51 Error processing for expansion failure of helo_data from an smtp
798 transport during callout processing was broken.
799
56f5d9bd
PH
800PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
801 tested/used via the -bh/-bhc/-bs options.
802
922e1c28
PH
803PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
804 bug, fixed in subsequent PCRE releases).
805
21eb6e72
PH
806PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
807 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
808
a0540757
PH
809PH/55 Check for a ridiculously long file name in exim_dbmbuild.
810
944e9e9c 811
478be7b0
SC
812Exim version 4.63
813-----------------
814
815SC/01 Use a glob alias rather than an array ref in eximstats generated
816 parser. This improves both readability and performance.
817
818SC/02 Collect SpamAssassin and rejection statistics in eximstats.
819 Don't display local sender or destination tables in eximstats unless
820 there is data to show.
821 Added average volumes into the eximstats top table text output.
822
823SC/03 Collect data on the number of addresses (recipients) as well
824 as the number of messages in eximstats.
825
2b965a65
TF
826TF/01 Correct an error in the documentation for the redirect router. Exim
827 does (usually) call initgroups() when daemonizing.
478be7b0 828
45b91596
PH
829TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
830 with consistent privilege compared to when running as a daemon.
478be7b0 831
c59f5781
TF
832TF/03 Note in the spec that $authenticated_id is not set for local
833 submissions from trusted users.
834
90fc3069
TF
835TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
836 Thanks to Dean Brooks <dean@iglou.com> for the patch.
837
6083aca0
TF
838TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
839 by adding some example configuration directives to the default
840 configuration file. A little bit of work is required to uncomment the
841 directives and define how usernames and passwords are checked, but
842 there is now a framework to start from.
843
765b530f
PH
844PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
845 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
846 without this. I don't know how relevant this is to other LDAP libraries.
847
4e167a8c
PH
848PH/02 Add the verb name to the "unknown ACL verb" error.
849
4608d683
PH
850PH/03 Magnus Holmgren's patch for filter_prepend_home.
851
b8dc3e4a
PH
852PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
853
5418e93b
PH
854PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
855 directory not expanded when it should be if an expanded home directory
856 was set for the address (which is overridden by the transport).
857
b4a9bda2
PH
858PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
859 libradius.
860
45b91596
PH
861PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
862 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
863 because it is too late at that time, and has no effect.
864
5547e2c5
PH
865PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
866 security issue with \' (bugzilla #107). I could not use the
867 PQescapeStringConn() function, because it needs a PGconn value as one of
868 its arguments.
869
dbcef0ea
PH
870PH/08 When testing addresses using -bt, indicate those final addresses that
871 are duplicates that would not cause an additional delivery. At least one
872 person was confused, thinking that -bt output corresponded to deliveries.
873 (Suppressing duplicates isn't a good idea as you lose the information
874 about possibly different redirections that led to the duplicates.)
875
25257489
PH
876PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
877 systems where poll() doesn't work, in particular OS X.
878
c816d124
PH
879PH/10 Added more information to debugging output for retry time not reached.
880
a9ccd69a
PH
881PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
882 operations in malware.c.
883
75fa1910
PH
884PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
885 signatures.
886
a7d7aa58
PH
887PH/13 If write_rejectlog was set false when logging was sent to syslog with
888 syslog_duplication set false, log lines that would normally be written
889 both the the main log and to the reject log were not written to syslog at
890 all.
891
42119b09
PH
892PH/14 In the default configuration, change the use of "message" in ACL warn
893 statements to "add_header".
894
41609df5
PH
895PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
896 not followed by a command (e.g. "seen endif").
897
a5bd321b
PH
898PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
899 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
900 latter.
901
e85a7ad5 902PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
903 so that it is now:
904
e85a7ad5
PH
905 ${if or { \
906 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
907 { match{$h_precedence:}{(?i)bulk|list|junk} } \
908 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
909 }{no}{yes}}
910
e85a7ad5
PH
911 The Auto-Submitted: and various List- headers are standardised, whereas I
912 don't think Precedence: ever was.
5dff5817 913
d8fe1c03
PH
914PH/18 Refactored debugging code in route_finduser() to show more information,
915 in particular, the error code if getpwnam() issues one.
916
16282d2b
PH
917PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
918 This is apparently needed in addition to the PH/07 change above to avoid
919 any possible encoding problems.
920
35d40a98
PH
921PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
922 but not after initializing Perl.
923
034d99ab
PH
924PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
925 output them only if debugging. By default they are written stderr,
926 apparently, which is not desirable.
927
6ec97b1b
PH
928PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
929 queries.
930
e22ca4ac
JJ
931JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
932 --not options
933
934JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
935
33d73e3b
PH
936PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
937 authenticated or an ident call has been made. Suppress the default
938 values for $authenticated_id and $authenticated_sender (but permit -oMai
939 and -oMas) when testing with -bh.
940
9ecb03f3
PH
941PH/24 Re-jigged the order of the tests in the default configuration so that the
942 tests for valid domains and recipients precede the DNS black list and CSA
943 tests, on the grounds that those ones are more expensive.
944
084efe8d
PH
945PH/25 Exim was not testing for a space following SMTP commands such as EHLO
946 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
947 This bug exists in every version of Exim that I still have, right back to
948 0.12.
949
366fc9f0
PH
950PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
951 However, an attempt to turn on case-sensitivity in a regex key by
952 including (?-i) didn't work because the subject string was already
953 lowercased, and the effects were non-intuitive. It turns out that a
954 one-line patch can be used to allow (?-i) to work as expected.
955
c59f5781 956
c887c79e
TF
957Exim version 4.62
958-----------------
959
960TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
961 other effects) broke the use of negated acl sub-conditions.
962
1cce3af8
PH
963PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
964 patch).
965
afb3eaaf
PH
966PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
967 "Deny" causes Exim to reject the incoming connection with a 554 error.
968 Unfortunately, if there is a major crisis, such as a disk failure,
969 tcp-wrappers gives "deny", whereas what one would like would be some
970 kind of temporary error. A kludge has been added to help with this.
971 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
972 554 error is used if errno is still zero or contains ENOENT (which occurs
973 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
974 451 error is used.
975
e173618b
PH
976PH/03 Add -lutil to the default FreeBSD LIBS setting.
977
dd16e114
PH
978PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
979 errors. Otherwise a message that provokes a temporary error (when other
980 messages do not) can cause a whole host to time out.
981
f7fd3850
PH
982PH/05 Batch deliveries by appendfile and pipe transports did not work when the
983 addresses were routed directly to files or pipes from a redirect router.
984 File deliveries just didn't batch; pipe deliveries might have suffered
985 odd errors.
986
d87df92c
PH
987PH/06 A failure to get a lock for a hints database would erroneously always say
988 "Failed to get write lock", even when it was really a read lock.
989
7e9f683d
PH
990PH/07 The appendfile transport was creating MBX lock files with a fixed mode
991 of 0600. This has been changed to use the value of the lockfile_mode
992 option (which defaults to 0600).
993
bfad5236
PH
994PH/08 Applied small patch from the Sieve maintainer.
995
01c490df
PH
996PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
997 folder from quota calculations, a direct delivery into this folder messed
998 up the contents of the maildirsize file. This was because the regex was
999 used only to exclude .Trash (or whatever) when the size of the mailbox
1000 was calculated. There was no check that a delivery was happening into an
1001 excluded directory. This bug has been fixed by ignoring all quota
1002 processing for deliveries into excluded directories.
1003
d6629cdc
PH
1004PH/10 Added the maildirfolder_create_regex option to appendfile.
1005
1cce3af8 1006
214e2000
PH
1007Exim version 4.61
1008-----------------
1009
1010PH/01 The code for finding all the local interface addresses on a FreeBSD
1011 system running IPv6 was broken. This may well have applied to all BSD
1012 systems, as well as to others that have similar system calls. The broken
1013 code found IPv4 interfaces correctly, but gave incorrect values for the
1014 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1015 that it would not match correctly against @[] and not recognize the IPv6
1016 addresses as local.
1017
f9daeae0
PH
1018PH/02 The ipliteral router was not recognizing addresses of the form user@
1019 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1020
7e66e54d
PH
1021PH/03 Added disable_ipv6.
1022
c8ea1597
PH
1023PH/04 Changed $reply_address to use the raw form of the headers instead of the
1024 decoded form, because it is most often used to construct To: headers
1025 lines in autoreplies, and the decoded form may well be syntactically
1026 invalid. However, $reply_address has leading white space removed, and all
1027 newlines turned into spaces so that the autoreply transport does not
1028 grumble.
1029
911f6fde
PH
1030PH/05 If group was specified without a user on a router, and no group or user
1031 was specified on a transport, the group from the router was ignored.
1032
47ca6d6c
PH
1033PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1034 for visible compile-time settings that can be used to change these
1035 numbers, for those that want even more. Backwards compatibility with old
1036 spool files has been maintained. However, going back to a previous Exim
1037 release will lost any variables that are in spool files.
1038
ed0e9820
PH
1039PH/07 Two small changes when running in the test harness: increase delay when
1040 passing a TCP/IP connection to a new process, in case the original
1041 process has to generate a bounce, and remove special handling of
1042 127.0.0.2 (sic), which is no longer necessary.
1043
eff37e47
PH
1044PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1045 be the same on different OS.
1046
1921d2ea
PH
1047PH/09 Moved a debug statement in filter processing to avoid a race problem when
1048 testing.
1049
b3f69ca8
JJ
1050JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1051 whether --show-vars was specified or not
1052
1053JJ/02 exipick: Added support for new ACL variable spool format introduced
1054 in 4.61-PH/06
1055
424a1c63
PH
1056PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1057 syntactically invalid From: or Reply-to: line, and a filter used this to
1058 generate an autoreply, and therefore failed to obtain an address for the
1059 autoreply, Exim could try to deliver to a non-existent relative file
1060 name, causing unrelated and misleading errors. What now happens is that
1061 it logs this as a hard delivery error, but does not attempt to create a
1062 bounce message.
1063
7a100415
PH
1064PH/11 The exinext utility has a -C option for testing purposes, but although
1065 the given file was scanned by exinext itself; it wasn't being passed on
1066 when Exim was called.
1067
19b9dc85
PH
1068PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1069 an end-of-file indication when reading a command response.
1070
309bd837
PH
1071PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1072 compiled. In many other places in Exim, IPv6 addresses are always
1073 recognized, so I have changed this. It also means that IPv4 domain
1074 literals of the form [IPV4:n.n.n.n] are now always recognized.
1075
59e82a2a
PH
1076PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1077 used if the router is not running as root, for example, when verifying at
1078 ACL time, or when using -bh. The debugging output from this situation was
1079 non-existent - all you got was a failure to exec. I have made two
1080 changes:
1081
1082 (a) Failures to set uid/gid, the current directory, or a process leader
1083 in a subprocess such as that created by queryprogram now generate
1084 suitable debugging ouput when -d is set.
1085
1086 (b) The queryprogram router detects when it is not running as root,
1087 outputs suitable debugging information if -d is set, and then runs
1088 the subprocess without attempting to change uid/gid.
1089
9edc04ce
PH
1090PH/15 Minor change to Makefile for building test_host (undocumented testing
1091 feature).
1092
1349e1e5
PH
1093PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1094 additional section of a DNS packet that returns MX or SRV records.
1095 Instead, it always explicitly searches for A/AAAA records. This avoids
1096 major problems that occur when a DNS server includes only records of one
1097 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1098 fixed another bug: if SRV records were looked up and the corresponding
1099 address records were *not* found in the additional section, the port
1100 values from the SRV records were lost.
1101
ea49d0e1
PH
1102PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1103 using the correct key (the original address) when searching the retry
1104 rules in order to find which one to use for generating the retry hint.
1105
064a94c9
PH
1106PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1107 adding the default one. Similarly, if it contains a Reply-To: header, the
1108 errors_reply_to option, if set, is not used.
1109
727071f8
PH
1110PH/19 When calculating a retry time, Exim used to measure the "time since
1111 failure" by looking at the "first failed" field in the retry record. Now
1112 it does not use this if it is later than than the arrival time of the
1113 message. Instead it uses the arrival time. This makes for better
1114 behaviour in cases where some deliveries succeed, thus re-setting the
1115 "first failed" field. An example is a quota failure for a huge message
1116 when small messages continue to be delivered. Without this change, the
1117 "time since failure" will always be short, possible causing more frequent
1118 delivery attempts for the huge message than are intended.
dd16e114 1119 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1120
f78eb7c6
PH
1121PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1122 $1, $2, $3) because the numerical variables can be reset during some
1123 expansion items (e.g. "match"), thereby losing the authentication data.
1124
21c28500
PH
1125PH/21 Make -bV show the size of off_t variables so that the test suite can
1126 decide whether to run tests for quotas > 2G.
1127
1128PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1129 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1130 filecount value is greater than 2G or if a quota value is greater than 2G
1131 on a system where the size of off_t is not greater than 4, a panic error
1132 is given.
1133
1688f43b
PH
1134PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1135 never match. The debug and -bh output now contains an explicit error
1136 message indicating a malformed IPv4 address or mask.
1137
1138PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1139 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1140 PH/23 above applies.
1141
9675b384
PH
1142PH/25 Do not write to syslog when running in the test harness. The only
1143 occasion when this arises is a failure to open the main or panic logs
1144 (for which there is an explicit test).
1145
6a3f1455
PH
1146PH/26 Added the /no_tell option to "control=freeze".
1147
dac79d3e
PH
1148PH/27 If a host name lookup failed very early in a connection, for example, if
1149 the IP address matched host_lookup and the reverse lookup yielded a name
1150 that did not have a forward lookup, an error message of the form "no IP
1151 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1152 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1153
5977a0b3
PH
1154PH/28 An enabling patch from MH: add new function child_open_exim2() which
1155 allows the sender and the authenticated sender to be set when
1156 submitting a message from within Exim. Since child_open_exim() is
1157 documented for local_scan(), the new function should be too.
1158
c91535f3
PH
1159PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1160 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1161 results in an empty string is now treated as unset.
1162
0d46a8c8
PH
1163PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1164
278c6e6c
PH
1165PH/31 Added sender_verify_fail logging option.
1166
2cbb4081
PH
1167PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1168 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1169 tidied the source and removed it altogether.
1170
3eef829e
PH
1171PH/33 When a queue run was abandoned because the load average was too high, a
1172 log line was always written; now it is written only if the queue_run log
1173 selector is set. In addition, the log line for abandonment now contains
1174 information about the queue run such as the pid. This is always present
1175 in "start" and "stop" lines but was omitted from the "abandon" line.
1176
1ab95fa6
PH
1177PH/34 Omit spaces between a header name and the colon in the error message that
1178 is given when verify = headers_syntax fails (if there are lots of them,
1179 the message gets confusing).
1180
230205fc
PH
1181PH/35 Change the default for dns_check_names_pattern to allow slashes within
1182 names, as there are now some PTR records that contain slashes. This check
1183 is only to protect against broken name servers that fall over on strange
1184 characters, so the fact that it applies to all lookups doesn't matter.
1185
75e0e026
PH
1186PH/36 Now that the new test suite is complete, we can remove some of the
1187 special code in Exim that was needed for the old test suite. For example,
1188 sorting DNS records because real resolvers return them in an arbitrary
1189 order. The new test suite's fake resolver always returns records in the
1190 same order.
1191
1192PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1193 bounces) except when queue_only is set, to avoid logging races between
1194 the different processes.
1195
145396a6
PH
1196PH/38 Panic-die if .include specifies a non-absolute path.
1197
3cd34f13
PH
1198PH/39 A tweak to the "H" retry rule from its user.
1199
11121d3d
JJ
1200JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1201 a label. They prevented compilation on older perls.
1202
1203JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1204 a warning to be raised on newish perls.
1205
1206JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1207 on queue. Changes to match documented behaviour of showing count of
1208 messages matching specified criteria.
1209
8def5aaf
PH
1210PH/40 Changed the default ident timeout from 30s to 5s.
1211
929ba01c
PH
1212PH/41 Added support for the use of login_cap features, on those BSD systems
1213 that have them, for controlling the resources used by pipe deliveries.
1214
2632889e
PH
1215PH/42 The content-scanning code uses fopen() to create files in which to put
1216 message data. Previously it was not paying any attention to the mode of
1217 the files. Exim runs with umask(0) because the rest of the code creates
1218 files with open(), and sets the required mode explicitly. Thus, these
1219 files were ending up world-writeable. This was not a big issue, because,
1220 being within the spool directory, they were not world-accessible. I have
1221 created a function called modefopen, which takes an additional mode
1222 argument. It sets umask(777), creates the file, chmods it to the required
1223 mode, then resets the umask. All the relevant calls to fopen() in the
1224 content scanning code have been changed to use this function.
1225
944a9c55
PH
1226PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1227 to 24 hours. This avoids potential overflow problems when processing G
1228 and H retry rules. I suspect nobody ever tinkers with this value.
1229
4a23603b
PH
1230PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1231
4730f942
PH
1232PH/45 When the plaintext authenticator is running as a client, the server's
1233 challenges are checked to ensure they are valid base64 strings. By
1234 default, the authentication attempt is cancelled if an invalid string is
1235 received. Setting client_ignore_invalid_base64 true ignores these errors.
1236 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1237 they are received. Thus, the responses can be made to depend on the
1238 challenges. If an invalid string is ignored, an empty string is placed in
1239 the variable.
1240
30dba1e6
PH
1241PH/46 Messages that are created by the autoreply transport now contains a
1242 References: header, in accordance with RFCs 2822 and 3834.
1243
382afc6b
PH
1244PH/47 Added authenticated_sender_force to the smtp transport.
1245
a86229cf
PH
1246PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1247
50c99ba6
PH
1248PH/49 Installed latest patch from the Sieve maintainer.
1249
d35e429d
PH
1250PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1251 was also set, the appendfile transport was unnecessarily scanning a
1252 directory of message files (e.g. for maildir delivery) to find the count
1253 of files (along with the size), even though it did not need this
1254 information. It now does the scan only if it needs to find either the
1255 size of the count of files.
1256
f90d018c
PH
1257PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1258
75def545
PH
1259PH/52 Two bugs concerned with error handling when the smtp transport is
1260 used in LMTP mode:
1261
1262 (i) Exim was not creating retry information for temporary errors given
1263 for individual recipients after the DATA command when the smtp transport
1264 was used in LMTP mode. This meant that they could be retried too
1265 frequently, and not timed out correctly.
1266
1267 (ii) Exim was setting the flag that allows error details to be returned
1268 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1269 recipients that were returned after the DATA command.
1270
1271PH/53 This is related to PH/52, but is more general: for any failing address,
1272 when detailed error information was permitted to be returned to the
1273 sender, but the error was temporary, then after the final timeout, only
1274 "retry timeout exceeded" was returned. Now it returns the full error as
1275 well as "retry timeout exceeded".
1276
c46782ef
PH
1277PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1278 do this, and (what is worse) MTAs that accept it.
1279
71fafd95
PH
1280PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1281 will now be deprecated.
1282
2c5db4fd
PH
1283PH/56 New os.c-cygwin from the Cygwin maintainer.
1284
9cf6b11a
JJ
1285JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1286 formats (previously only available in exim formats via -bpr, -bpru,
1287 and -bpra. Now also available in native and exiqgrep formats)
1288
1289JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1290 with very large, slow to parse queues
1291
1292JJ/08 exipick: added ! as generic prefix to negate any criteria format
1293
1294JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1295
898d150f
PH
1296PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1297 responses to authentication challenges, though it was showing the
1298 challenges; (ii) I've removed the CR characters from the debug output for
1299 SMTP output lines.
1300
46218253
PH
1301PH/58 Allow for the insertion of a newline as well as a space when a string
1302 is turned into more than one encoded-word during RFC 2047 encoding. The
1303 Sieve code now uses this.
1304
e97957bc
PH
1305PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1306 data_4xx, lost_connection, tls_required.
1307
81e509d7
PH
1308PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1309 message was being sent as an SMTP response.
1310
3d240ff7
PH
1311PH/61 Add -l and -k options to exicyclog.
1312
b37c4101
PH
1313PH/62 When verifying, if an address was redirected to one new address, so that
1314 verification continued, and the new address failed or deferred after
1315 having set something in $address_data, the value of $address_data was not
1316 passed back to the ACL. This was different to the case when no
1317 redirection occurred. The value is now passed back in both cases.
1318
79378e0f
PH
1319PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1320 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1321 use login_cap.h, so on its own it isn't the distinguishing feature. The
1322 new name refers directly to the setclassresources() function.
1323
e49c7bb4
PH
1324PH/65 Added configuration files for NetBSD3.
1325
d114ec46
PH
1326PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1327
f3d7df6c
PH
1328PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1329 is preferred over IPv4.
1330
715ab376
PH
1331PH/68 The bounce_return_message and bounce_return_body options were not being
1332 honoured for bounces generated during the reception of non-SMTP messages.
1333 In particular, this applied to messages rejected by the ACL. This bug has
1334 been fixed. However, if bounce_return_message is true and bounce_return_
1335 body is false, the headers that are returned for a non-SMTP message
1336 include only those that have been read before the error was detected.
1337 (In the case of an ACL rejection, they have all been read.)
1338
6b31b150
PH
1339PH/69 The HTML version of the specification is now built in a directory called
1340 spec_html instead of spec.html, because the latter looks like a path with
1341 a MIME-type, and this confuses some software.
1342
1343PH/70 Catch two compiler warnings in sieve.c.
1344
d515a917
PH
1345PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1346 function verify_get_ident() calls ip_connect() to connect a socket, but
1347 if the "connect()" function timed out, ip_connect() used to close the
1348 socket. However, verify_get_ident() also closes the socket later, and in
1349 between Exim writes to the log, which may get opened at this point. When
1350 the socket was closed in ip_connect(), the log could get the same file
1351 descriptor number as the socket. This naturally causes chaos. The fix is
1352 not to close the socket in ip_connect(); the socket should be closed by
1353 the function that creates it. There was only one place in the code where
1354 this was missing, in the iplookup router, which I don't think anybody now
1355 uses, but I've fixed it anyway.
1356
9b8fadde
PH
1357PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1358 well as to direct DNS lookups. Otherwise the handling of names in host
1359 lists is inconsistent and therefore confusing.
1360
214e2000 1361
5de37277
PH
1362Exim version 4.60
1363-----------------
1364
cc38ddbf
PH
1365PH/01 Two changes to the default runtime configuration:
1366
1367 (1) Move the checks for relay_from_hosts and authenticated clients from
1368 after to before the (commented out) DNS black list checks.
1369
1370 (2) Add control=submission to the relay_from_hosts and authenticated
1371 clients checks, on the grounds that messages accepted by these
1372 statements are most likely to be submissions.
5de37277 1373
72fdd6ae
PH
1374PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1375
1376 (1) Generate an error if the third argument for the ${prvs expansion is
1377 not a single digit.
1378
1379 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1380 string.
1381
1382 (3) Reset the variables that are obtained from the first argument of
1383 ${prvscheck and used in the second argument before leaving the code,
1384 because their memory is reclaimed, so using them afterwards may do
1385 silly things.
1386
1387 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1388 one (it's much easier than Tom thought :-).
1389
1390 (5) Because of (4), we can now allow for the use of $prvscheck_result
1391 inside the third argument.
cb9328de 1392
cb741023
PH
1393PH/03 For some reason, the default setting of PATH when running a command from
1394 a pipe transport was just "/usr/bin". I have changed it to
1395 "/bin:/usr/bin".
1396
f174f16e
PH
1397PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1398 anything to be listed in the output from -bV.
b2f5a032 1399
c25242d7
PH
1400PH/05 When a filter generated an autoreply, the entire To: header line was
1401 quoted in the delivery log line, like this:
1402
1403 => >A.N.Other <ano@some.domain> <original@ddress> ...
1404
1405 This has been changed so that it extracts the operative address. There
1406 may be more than one such address. If so, they are comma-separated, like
1407 this:
1408
1409 => >ano@some.domain,ona@other.domain <original@ddress> ...
1410
82c19f95
PH
1411PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1412 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1413 not being looked up in the rDNS to get a host name, Exim was showing the
1414 IP address twice in Received: lines, even though the IP addresses were
1415 identical. For example:
1416
1417 Received: from [1.2.3.4] (helo=[1.2.3.4])
1418
1419 However, if the real host name was known, it was omitting the HELO data
1420 if it matched the actual IP address. This has been tidied up so that it
1421 doesn't show the same IP address twice.
1422
d7ffbc12
PH
1423PH/07 When both +timestamp and +memory debugging was on, the value given by
1424 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1425 called by the debug printing, thereby overwriting the timestamp buffer.
1426 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1427
9f526266
PH
1428PH/08 When the original message was included in an autoreply transport, it
1429 always said "this is a copy of the message, including all the headers",
1430 even if body_only or headers_only was set. It now gives an appropriate
1431 message.
1432
87fcc8b9
PH
1433PH/09 Applied a patch from the Sieve maintainer which:
1434
1435 o fixes some comments
1436 o adds the (disabled) notify extension core
1437 o adds some debug output for the result of if/elsif tests
1438 o points to the current vacation draft in the documentation
1439 and documents the missing references header update
1440
1441 and most important:
1442
1443 o fixes a bug in processing the envelope test (when testing
1444 multiple envelope elements, the last element determinted the
1445 result)
1446
456682f5
PH
1447PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1448 Electronic Mail") by including:
1449
1450 Auto-submitted: auto-generated
1451
1452 in the messages that it generates (bounce messages and others, such as
1453 warnings). In the case of bounce messages for non-SMTP mesages, there was
1454 also a typo: it was using "Auto_submitted" (underscore instead of
1455 hyphen). Since every message generated by Exim is necessarily in response
1456 to another message, thes have all been changed to:
1457
1458 Auto-Submitted: auto-replied
1459
1460 in accordance with these statements in the RFC:
1461
1462 The auto-replied keyword:
1463
1464 - SHOULD be used on messages sent in direct response to another
1465 message by an automatic process,
1466
1467 - MUST NOT be used on manually-generated messages,
1468
1469 - MAY be used on Delivery Status Notifications (DSNs) and Message
1470 Disposition Notifications (MDNs),
1471
1472 - MUST NOT be used on messages generated by automatic or periodic
1473 processes, except for messages which are automatic responses to
1474 other messages.
1475
3e46c1aa
PH
1476PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1477 to the default Received: header definition.
456682f5 1478
49826d12
PH
1479PH/12 Added log selector acl_warn_skipped (default on).
1480
eba0c039
PH
1481PH/13 After a successful wildlsearch lookup, discard the values of numeric
1482 variables because (a) they are in the wrong storage pool and (b) even if
1483 they were copied, it wouldn't work properly because of the caching.
1484
a0d6ba8a
PH
1485PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1486 checking when decoding. Apparently there are clients that generate
1487 overlong encoded strings. Why am I not surprised?
1488
f0917727
PH
1489PH/15 If the first argument of "${if match_address" was not empty, but did not
1490 contain an "@" character, Exim crashed. Now it writes a panic log message
1491 and treats the condition as false.
1492
096fee00
PH
1493PH/16 In autoreply, treat an empty string for "once" the same as unset.
1494
024bd3c2
PH
1495PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1496 extension "envelope-auth". The code is finished and in agreement with
1497 other implementations, but there is no documentation so far and in fact,
1498 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1499 not changing the active code.
1500
1501 Print executed "if" and "elsif" statements when debugging is used. This
1502 helps a great deal to understand what a filter does.
1503
1504 Document more things not specified clearly in RFC3028. I had all this
1505 sorted out, when out of a sudden new issues came to my mind. Oops."
1506
df199fec
PH
1507PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1508 (Bugzilla #53).
1509
d27f1df3
PH
1510PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1511 canonical form (as documented). However, after a host name lookup from
1512 the IP address, check_host() was doing a simple string comparison with
1513 addresses acquired from the DNS when checking that the found name did
1514 have the original IP as one of its addresses. Since any found IPv6
1515 addresses are likely to be in abbreviated form, the comparison could
1516 fail. Luckily, there already exists a function for doing the comparison
1517 by converting both addresses to binary, so now that is used instead of
1518 the text comparison.
1519
96776534
PH
1520PH/20 There was another similar case to PH/19, when a complete host name was
1521 given in a host list; looking up its IP address could give an abbreviated
1522 form, whereas the current host's name might or might not be abbreviated.
1523 The same fix has been applied.
1524
5de37277 1525
9a799bc0
PH
1526Exim version 4.54
1527-----------------
1528
1529PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1530 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1531 It now does.
1532
99a4b039
PH
1533PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1534 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1535
1536PH/03 Typo: missing ".o" in src/pcre/Makefile.
1537
4b233853
PH
1538PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1539 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1540 Also, for "Auto-Submitted", treat anything other than "no" as
1541 non-personal, in accordance with RFC 3834. (Previously it treated
1542 anything starting "auto-" as non-personal.)
1543
8857ccfd
PH
1544TF/01 The control=submission/name=... option had a problem with syntax
1545 errors if the name included a slash character. The /name= option
1546 now slurps the rest of the string, so it can include any characters
1547 but it must come last in the list of options (after /sender_retain
1548 or /domain=).
1549
433a2980
PH
1550PH/05 Some modifications to the interface to the fake nameserver for the new
1551 testing suite.
1552
3e46c1aa 1553
9a799bc0 1554
e3a311ba
TK
1555Exim version 4.53
1556-----------------
1557
1558TK/01 Added the "success_on_redirect" address verification option. See
1559 NewStuff for rationale and an example.
1560
13b685f9
PH
1561PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1562
395ff96d
PH
1563PH/02 Patch to exigrep to allow it to work on syslog lines.
1564
5b68f6e4
PH
1565PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1566 fread() to skip over the body file's header line, because in Cygwin the
1567 header line is locked and is inaccessible.
1568
1ab52c69
PH
1569PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1570 co-exist for some time) to make it clear that it is the Exim ID that is
1571 referenced, not the Message-ID: header line.
1572
b07e6aa3
PH
1573PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1574 string_format() function, because snprintf() does not exist on all
1575 operating systems.
1576
254e032f
PH
1577PH/06 The use of forbid_filter_existstest now also locks out the use of the
1578 ${stat: expansion item.
1579
3af76a81
PH
1580PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1581 protocol synchronization error", to keep the pedants happy.
1582
2548ba04
PH
1583PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1584 well as for IRIX systems, when gcc is being used. See the host.c source
1585 file for comments.
1586
b6c6011d
PH
1587PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1588
cf39cf57
PH
1589PH/10 Named domain lists were not working if used in a queue_smtp_domains
1590 setting.
1591
f1513293
PH
1592PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1593 transport and to the smtp transport in LMTP mode.
1594
727549a4
PH
1595TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1596
af46795e
PH
1597PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1598 run a filter in a subprocess. This could lead to confusion in subsequent
1599 lookups in the parent process. There should also be a search_tidyup() at
1600 the end of the subprocess.
1601
d7b47fd0
PH
1602PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1603 only if the host matched helo_try_verify_hosts, which caused the
1604 verification to occur when the EHLO/HELO command was issued. The ACL just
1605 tested the remembered result. Now, if a previous verification attempt has
1606 not happened, "verify = helo" does it there and then.
1607
ee744174
JJ
1608JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1609
b582ab87
PH
1610TK/03 Fix log output including CR from clamd.
1611
41a13e0a
PH
1612PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1613 exist provoked a memory error which could cause a segfault.
1614
f625cc5a
PH
1615PH/15 Installed PCRE 6.2
1616
1617PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1618
21f7af35
PH
1619PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1620 of the problem. Specifically, suggested +O2 rather than +O1 for the
1621 HP-UX compiler.
1622
31480e42
PH
1623PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1624
2d280592
PH
1625PH/20 If a delivery was routed to a non-standard port by means of an SRV
1626 record, the port was not correctly logged when the outgoing_port log
1627 selector was set (it logged the transort's default port).
1628
7cd1141b
PH
1629PH/21 Added support for host-specific ports to manualroute, queryprogram,
1630 fallback_hosts, and "hosts" in the smtp transport.
1631
1632PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1633 host errors such as "Connection refused".
1634
750af86e
PH
1635PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1636 authentication with radiusclient 0.4.9:
1637
1638 - Error returned from rc_read_config was caught wrongly
1639 - Username/password not passed on to radius server due to wrong length.
1640
1641 The presumption is that some radiusclient API changes for 4.51/PH/17
1642 were not taken care of correctly. The code is still untested by me (my
1643 Linux distribution still has 0.3.2 of radiusclient), but it was
1644 contributed by a Radius user.
1645
1646PH/24 When doing a callout, the value of $domain wasn't set correctly when
1647 expanding the "port" option of the smtp transport.
1648
4304270b
TK
1649TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1650 while reading a MIME header. Thanks to Tom Hughes for a patch.
1651
750af86e
PH
1652PH/24 Include config.h inside local_scan.h so that configuration settings are
1653 available.
1654
64ffc24f
PH
1655PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1656 that in an ACL for RCPT (for example), you can examine exactly what was
1657 received.
1658
5dd9625b
PH
1659PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1660 commands, but it was not correctly comparing the address with the actual
1661 client host address. Thus, it would show the EHLO address in Received:
1662 header lines when this was not necessary.
1663
5591031b
PH
1664PH/27 Added the % operator to ${eval:}.
1665
ba18e66a
PH
1666PH/28 Exim tries to create and chdir to its spool directory when it starts;
1667 it should be ignoring failures (because with -C, for example, it has lost
1668 privilege). It wasn't ignoring creation failures other than "already
1669 exists".
1670
9cec981f
PH
1671PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1672 -bV or -d is used.
1673
aa2b5c79
PH
1674PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1675 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1676 too many continuations, the temporary file was not being removed, and the
1677 return code was incorrect.
aa2b5c79 1678
48a53b7f
PH
1679PH/31 Missing "BOOL" in function definition in filtertest.c.
1680
1c59d63b
PH
1681PH/32 Applied Sieve patches from the maintainer.
1682
671012da
TK
1683TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1684
1509d3a8
PH
1685PH/33 Added "verify = not_blind".
1686
1687PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1688 Local/Makefile (with some defaults set). These are used in built scripts
1689 such as exicyclog, but they have never been used in the exim_install
1690 script (though there are many overriding facilities there). I have
1691 arranged that the exim_install script now takes note of these two
1692 settings.
1693
1694PH/35 Installed configuration files for Dragonfly.
1695
2fe1a124
PH
1696PH/36 When a locally submitted message by a trusted user did not contain a
1697 From: header, and the sender address was obtained from -f or from an SMTP
1698 MAIL command, and the trusted user did not use -F to supply a sender
1699 name, $originator_name was incorrectly used when constructing a From:
1700 header. Furthermore, $originator_name was used for submission mode
1701 messages from external hosts without From: headers in a similar way,
1702 which is clearly wrong.
1703
8800895a
PH
1704PH/37 Added control=suppress_local_fixups.
1705
ccfdb010
PH
1706PH/38 When log_selector = +received_sender was set, and the addition of the
1707 sender made the log line's construction buffer exactly full, or one byte
1708 less than full, an overflow happened when the terminating "\n" was
1709 subsequently added.
1710
1130bfb0
PH
1711PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1712 when the result of a list match is failure because a DNS lookup failed.
1713
ebcb507f
PH
1714PH/40 RM_COMMAND is now used in the building process.
1715
c35e155c
PH
1716PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1717 the "build-* directories that it finds.
1718
95d1f782
PH
1719PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1720 address in a domain literal was a prefix of an interface address.
1721
fd6de02e
PH
1722PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1723 when verifying a sender address, unless rewrite_headers is false.
1724
58de37c5
PH
1725PH/44 Wrote a long comment about why errors_to addresses are verified as
1726 recipients, not senders.
1727
261cf466
TF
1728TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1729 the ratelimit ACL was added.
1730
3ee512ff
PH
1731PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1732
e08c430f
PH
1733PH/46 Added extra information about PostgreSQL errors to the error string.
1734
bef5a11f
PH
1735PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1736 avoiding the need to install special zones in a real server. This is
1737 backwards compatible; if it can't find the fake resolver, it drops back.
1738 Thus, both old and new test suites can be run.
1739
7546de58
TF
1740TF/02 Added util/ratelimit.pl
1741
e5d5a95f
TF
1742TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1743 clock is set back in time.
1744
2e88a017
TF
1745TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1746 Candler <B.Candler@pobox.com>.
1747
a5f65aa4
TF
1748TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1749 OK for addresses that are the result of redirections.
1750
e7726cbf
PH
1751PH/48 A number of further additions for the benefit of the new test suite,
1752 including a fake gethostbyname() that interfaces to the fake DNS resolver
1753 (see PH/47 above).
1754
a7fdad5b
TF
1755TF/06 The fix for widen_domains has also been applied to qualify_single and
1756 search_parents which are the other dnslookup options that can cause
1757 header rewrites.
1758
6af56900
PH
1759PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1760 type ("H").
1761
0925ede6
PH
1762PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1763
66afa403
TF
1764TF/07 Exim produced the error message "an SRV record indicated no SMTP
1765 service" if it encountered an MX record with an empty target hostname.
1766 The message is now "an MX or SRV record indicated no SMTP service".
1767
0154e85a
TF
1768TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1769 if the DNS of the sending site is misconfigured. This is quite a
1770 common situation. This change restores the behaviour of treating a
1771 helo verification defer as a failure.
1772
16f12c76
PH
1773PH/51 If self=fail was set on a router, the bounce message did not include the
1774 actual error message.
1775
bbe902f0 1776
e5a9dba6
PH
1777Exim version 4.52
1778-----------------
1779
1780TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1781
22c3b60b
PH
1782PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1783 command itself ended in error, the underlying message about the transport
1784 filter timeout was being overwritten with the pipe command error. Now the
1785 underlying error message should be appended to the second error message.
1786
06a9b4b5
PH
1787TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1788
c1ac6996
PH
1789PH/02 Reduce the amount of output that "make" produces by default. Full output
1790 can still be requested.
1791
9c7a242c
PH
1792PH/03 The warning log line about a condition test deferring for a "warn" verb
1793 was being output only once per connection, rather than after each
1794 occurrence (because it was using the same function as for successful
1795 "warn" verbs). This seems wrong, so I have changed it.
1796
87ba3f5f
PH
1797TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1798 it should not have, which might have caused a crash in the right
1799 circumstances, but probably never did.
1800
1801PH/04 Installed a modified version of Tony Finch's patch to make submission
1802 mode fix the return path as well as the Sender: header line, and to
1803 add a /name= option so that you can make the user's friendly name appear
1804 in the header line.
1805
29aba418
TF
1806TF/03 Added the control = fakedefer ACL modifier.
1807
fe0dab11
TF
1808TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1809 Mark Lowes for thorough testing.
870f6ba8 1810
11d337a4
TK
1811TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1812
1813TK/03 Merged latest SRS patch from Miles Wilton.
1814
415c8f3b
PH
1815PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1816 with the definition in sysexits.h (which is #included earlier).
1817 Fortunately, Exim does not actually use EX_OK. The code used to try to
1818 preserve the sysexits.h value, by assumimg that macro definitions were
1819 scanned for macro replacements. I have been disabused of this notion,
1820 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1821
958541e9
PH
1822PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1823 in the smtp transport. When a block could not be written in a single
1824 write() function, the timeout was being re-applied to each part-write.
1825 This seems wrong - if the receiver was accepting one byte at a time it
1826 would take for ever. The timeout is now adjusted when this happens. It
1827 doesn't have to be particularly precise.
1828
c206415f
TK
1829TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1830 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1831
2a4be8f9
PH
1832PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1833 without a domain if the check to <postmaster@domain> fails.
1834
1cba11c5
SC
1835SC/01 Eximstats: added -xls and the ability to specify output files
1836 (patch written by Frank Heydlauf).
1837
1838SC/02 Eximstats: use FileHandles for outputing results.
1839
1840SC/03 Eximstats: allow any combination of xls, txt, and html output.
1841
1842SC/04 Eximstats: fixed display of large numbers with -nvr option
1843
1844SC/05 Eximstats: fixed merging of reports with empty tables.
1845
1846SC/06 Eximstats: added the -include_original_destination flag
1847
1848SC/07 Eximstats: removed tabs and trailing whitespace.
1849
1005d00e
TK
1850TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1851
1852TK/06 MBOX spool code: Add real "From " MBOX separator line
1853 so the .eml file is really in mbox format (even though
1854 most programs do not really care). Patch from Alex Miller.
1855
1856TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1857 The latter is generated from $received_to and is only set if the
1858 message has one envelope recipient. SA can use these headers,
1859 obviously out-of-the-box. Patch from Alex Miller.
1860
9b4768fa
PH
1861PH/08 The ${def test on a variable was returning false if the variable's
1862 value was "0", contrary to what the specification has always said!
1863 The result should be true unless the variable is empty.
1864
1865PH/09 The syntax error of a character other than { following "${if
1866 def:variable_name" (after optional whitespace) was not being diagnosed.
1867 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1868 accidental colon was present, for example, could give incorrect results.
1869
0d7eb84a
PH
1870PH/10 Tidied the code in a number of places where the st_size field of a stat()
1871 result is used (not including appendfile, where other changes are about
1872 to be made).
1873
1874PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1875 This involved changing a lot of size variables from int to off_t. It
1876 should work with maildirs and everything.
1877
40727bee
TK
1878TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1879 spamd dying while we are connected to it.
1880
554d2369
TF
1881TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1882 <jgh@wizmail.org>
1883
1f922db1
PH
1884PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1885 function for BDB 4.3.
1886
ef213c3b
PH
1887PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1888
8ac170f3
PH
1889PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1890 the sources for PCRE have been re-arranged and more files are now
1891 involved.
1892
b1c749bb
PH
1893PH/15 The code I had for printing potentially long long variables in PH/11
1894 above was not the best (it lost precision). The length of off_t variables
1895 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1896 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1897 to be "long long int" or "long int". This is needed for the internal
1898 formatting function string_vformat().
b1c749bb 1899
4aac9b49
PH
1900PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1901 the configuration file to be ":syslog", then the script "guesses" where
1902 the logs files are, rather than using the compiled in default. In our
1903 case the guess is not the same as the compiled default, so the script
1904 suddenly stopped working when I started to use syslog. The patch checks
1905 to see if log_file_path is "". If so, it attempts to read it from exim
1906 with no configuration file to get the compiled in version, before it
1907 falls back to the previous guessing code."
1908
294520c8
TK
1909TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1910 implementing BATV in an Exim configuration. See NewStuff for the gory
1911 details.
1912
5bd022fe
PH
1913PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1914 Makefile that are specific to HP-UX.
1915
90e9ce59
PH
1916PH/18 If the "use_postmaster" option was set for a recipient callout together
1917 with the "random" option, the postmaster address was used as the MAIL
1918 FROM address for the random test, but not for the subsequent recipient
1919 test. It is now used for both.
1920
5ea81592
PH
1921PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1922 patch removes a few documentation additions to RFC 3028, because the
1923 latest draft now contains them. It adds the new en;ascii-case comparator
1924 and a new error check for 8bit text in MIME parts. Comparator and
1925 require names are now matched exactly. I enabled the subaddress
1926 extension, but it is not well tested yet (read: it works for me)."
1927
c6c2dc1d
PH
1928PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1929 rework some of the code of TK/09 above to avoid the hardwired use of
1930 "%lld" and "long long". Replaced the call to snprintf() with a call to
1931 string_vformat().
1932
fffffe4c
PH
1933PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1934 records point to non-existent hosts", "retry timeout exceeded", and
1935 "retry time not reached for any host after a long failure period".
ca02eafb 1936
9a26b6b2
PH
1937PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1938 experimental DomainKeys support:
1939
1940 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1941 (2) On an error such as an illegally used "control", the wrong name for
1942 the control was given.
1943
1944 These problems did NOT occur unless DomainKeys support was compiled.
1945
4aee0225
PH
1946PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1947
32d668a5
PH
1948PH/24 Added ${if match_ip condition.
1949
8187c3f3
PH
1950PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1951 databases so that it will be absolutely obvious if a crash occurs in the
1952 DB library. This is a regular occurrence (often caused by mis-matched
1953 db.h files).
1954
ff790e47 1955PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1956 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1957 picked up on a user's system that detects such things. There doesn't seem
1958 to be a gcc warning option for this - only an attribute that has to be
1959 put on the function's prototype. It seems that in Fedora Core 4 they have
1960 set this on a number of new functions. No doubt there will be more in due
1961 course.
ff790e47 1962
5417f6d1
PH
1963PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1964 specify a transport. However, if an address that was verified by such a
1965 router was the subject of a callout, Exim crashed because it tried to
1966 read the rcpt_include_affixes from the non-existent transport. Now it
1967 just assumes that the setting of that option is false. This bug was
1968 introduced by 4.51/PH/31.
1969
59cf8544
PH
1970PH/28 Changed -d+all to exclude +memory, because that information is very
1971 rarely of interest, but it makes the output a lot bigger. People tend to
1972 do -d+all out of habit.
1973
e7ad8a65
PH
1974PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1975 code in os-type was giving problems when libc.so lives in lib64, like on
1976 x86_64 Fedora Core.
1977
ade42478
PH
1978PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1979 aren't the modern standard, and it seems that some systems' include files
1980 don't always have them. Exim was already checking for some of the newer
1981 ones like T_AAAA, and defining it itself. I've added checks for all the
1982 record types that Exim uses.
1983
182ad5cf
PH
1984PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1985 not automatically generating a new one, as it is supposed to. This
1986 prevented TLS from working. If the file did exist, but contained invalid
1987 data, a new version was generated, as expected. It was only the case of a
1988 non-existent file that was broken.
1989
b0d9fc80
TK
1990TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1991 with a change in libdomainkeys > 0.64.
1992
1993TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1994 from DNS. If the selector record carries the flag, it now has
1995 precedence over the domain-wide flag.
1996
1997TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1998
47c7a64a
PH
1999PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2000 the use of a port name that isn't defined in /etc/services) occurred, the
2001 message was deferred as in a normal delivery, and thus remained on the
2002 spool, instead of being failed because of the mua_wrapper setting. This
2003 is now fixed, and I tidied up some of the mua_wrapper messages at the
2004 same time.
2005
a388bce4
SC
2006SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2007 the messages in a hash of arrays rather than using individual hashes.
2008 This is a bit cleaner and results in dramatic memory savings, albeit
2009 at a slight CPU cost.
2010
2011SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2012 as requested by Marc Sherman.
2013
2014SC/10 Eximstats: added histograms for user specified patterns as requested
2015 by Marc Sherman.
2016
0793e4ed
SC
2017SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2018
c58b88df
PH
2019PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2020 fopen() in the content-scanning modules that did not already have it.
2021
e7ad8a65 2022
7982096b
PH
2023Exim version 4.51
2024-----------------
2025
1a46a8c5
PH
2026TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2027 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2028
2f079f46 2029TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2030
2031TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2032
2033PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2034 to test Sieve filters that use "vacation".
2035
2036PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2037 that changes the way the GnuTLS parameters are stored in the cache file.
2038 The new format can be generated externally. For backward compatibility,
2039 if the data in the cache doesn't make sense, Exim assumes it has read an
2040 old-format file, and it generates new data and writes a new file. This
2041 means that you can't go back to an older release without removing the
2042 file.
2043
2044PH/03 A redirect router that has both "unseen" and "one_time" set does not
2045 work if there are any delivery delays because "one_time" forces the
2046 parent to be marked "delivered", so its unseen clone is never tried
2047 again. For this reason, Exim now forbids the simultaneous setting of
2048 these two options.
2049
2050PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2051 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2052 entry if you want to know the details. The fix, however, neglected to
2053 consider the case when local delivery batching is involved. The test for
2054 "previously delivered" was not happening when checking to see if an
2055 address could be batched with a previous (undelivered) one; under
2056 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2057 address.
1a46a8c5
PH
2058
2059PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2060 in its include files, and this causes problems building Exim.
2061
2062PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2063 header_syntax) but Exim was just ignoring anything given after a slash.
2064 In particular, this caused confusion with an attempt to use "verify =
2065 reverse_host_lookup/defer_ok". An error is now given when options are
2066 supplied for verify items that do not have them. (Maybe reverse_host_
2067 lookup should have a defer_ok option, but that's a different point.)
2068
2069PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2070 defined by RFC 821) to 2048, because there were problems with some AUTH
2071 commands, and RFC 1869 says the size should be increased for extended
2072 SMTP commands that take arguments.
2073
2074PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2075 Finch).
2076
2077PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2078 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2079
49c2d5ea
PH
2080PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2081 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2082 whatever). Otherwise the password may appear in the log. Following change
2083 PH/42 below, there is no longer a chance of it appearing in a bounce
2084 message.
49c2d5ea 2085
bf759a8b
PH
2086PH/11 Installed exipick version 20050225.0 from John Jetmore.
2087
83364d30
PH
2088PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2089 of its addresses was ever tried. (Bugzilla bug #2.)
2090
7999bbd7
PH
2091PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2092 the result incorrectly in the debug output. (It correctly added a newline
2093 to what was transported.)
2094
7dbf77c9
PH
2095TF/01 Added $received_time.
2096
74e0617f
PH
2097PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2098 commented out examples of how to interface to a virus scanner and to
2099 SpamAssassin. Also added commented examples of av_scanner and
2100 spamd_address settings.
2101
2f079f46
PH
2102PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2103 and controls are allowed in which ACLs. There were a couple of minor
2104 errors. Some of the entries in the conditions table (which is a table of
2105 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2106 negation of where the condition IS allowed.
2107
8c841523
PH
2108PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2109
7766a4f0
PH
2110PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2111 header file does not have a version number, so I've had to invent a new
2112 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2113 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2114 radiusclient), but it was contributed by a Radius user.
2115
8b417f2c
PH
2116PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2117 files or directories, for OpenSSL.
2118
901f42cb
PH
2119PH/19 When an Exim process that is running as root has to create an Exim log
2120 file, it does so in a subprocess that runs as exim:exim so as to get the
2121 ownership right at creation (otherwise, other Exim processes might see
2122 the file with the wrong ownership). There was no test for failure of this
2123 fork() call, which would lead to the process getting stuck as it waited
2124 for a non-existent subprocess. Forks do occasionally fail when resources
2125 run out. I reviewed all the other calls to fork(); they all seem to check
2126 for failure.
2127
f9b9210e
PH
2128PH/20 When checking for unexpected SMTP input at connect time (before writing
2129 the banner), Exim was not dealing correctly with a non-positive return
2130 from the read() function. If the client had disconnected by this time,
2131 the result was a log entry for a synchronization error with an empty
2132 string after "input=" when read() returned zero. If read() returned -1
2133 (an event I could not check), uninitialized data bytes were printed.
2134 There were reports of junk text (parts of files, etc) appearing after
2135 "input=".
2136
54cdb463
PH
2137PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2138
cf00dad6
PH
2139PH/22 Added support for macro redefinition, and (re)definition in between
2140 driver and ACL definitions.
2141
acb1b346
PH
2142PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2143 forgetting to use the resulting value; it was using the unexpanded value.
2144
c5ddb310
PH
2145PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2146 hadn't been configured. The fix is from Juergen Kreileder, who
2147 understands it better than I do:
2148
2149 "Here's what I see happening with three configured cyrus_sasl
2150 authenticators configured (plain, login, cram-md5):
2151
2152 On startup auth_cyrus_sasl_init() gets called for each of these.
2153 This means three calls to sasl_listmech() without a specified mech_list.
2154 => SASL tests which mechs of all available mechs actually work
2155 => three warnings about OTP not working
2156 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2157
2158 With the patch, sasl_listmech() also gets called three times. But now
2159 SASL's mech_list option is set to the server_mech specified in the the
2160 authenticator. Or in other words, the answer from sasl_listmech()
2161 gets limited to just the mech you're testing for (which is different
2162 for each call.)
2163 => the return list contains just 'plain' or 'login', 'cram-md5' or
2164 nothing depending on the value of ob->server_mech.
2165
2166 I've just tested the patch: Authentication still works fine,
2167 unavailable mechs specified in the exim configuration are still
2168 caught, and the auth.log warnings about OTP are gone."
2169
31619da6
PH
2170PH/25 When debugging is enabled, the contents of the command line are added
2171 to the debugging output, even when log_selector=+arguments is not
2172 specified.
2173
bebaf0fc
PH
2174PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2175 answer is "GNU", and only if the return is "GNU/something" is the answer
2176 "Linux".
2177
475fe28a
PH
2178PH/27 $acl_verify_message is now set immediately after the failure of a
2179 verification in an ACL, and so is available in subsequent modifiers. In
2180 particular, the message can be preserved by coding like this:
2181
2182 warn !verify = sender
2183 set acl_m0 = $acl_verify_message
2184
2185 Previously, $acl_verify_message was set only while expanding "message"
2186 and "log_message" when a very denied access.
2187
7e8bec7a
PH
2188PH/28 Modified OS/os.c-Linux with
2189
2190 -#ifndef OS_LOAD_AVERAGE
2191 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2192
2193 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2194 nomenclature these days.)
2195
e4a89c47
PH
2196PH/29 Installed patch from the Sieve maintainer that adds the options
2197 sieve_useraddress and sieve_subaddress to the redirect router.
2198
5ca2a9a1
PH
2199PH/30 In these circumstances:
2200 . Two addresses routed to the same list of hosts;
2201 . First host does not offer TLS;
2202 . First host accepts first address;
2203 . First host gives temporary error to second address;
2204 . Second host offers TLS and a TLS session is established;
2205 . Second host accepts second address.
2206 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2207 and peerdn, if requested) that were in fact used only for the second
2208 address.
7e8bec7a 2209
c688b954
PH
2210PH/31 When doing a callout as part of verifying an address, Exim was not paying
2211 attention to any local part prefix or suffix that was matched by the
2212 router that accepted the address. It now behaves in the same way as it
2213 does for delivery: the affixes are removed from the local part unless
2214 rcpt_include_affixes is set on the transport.
2215
fed77020
PH
2216PH/32 Add the sender address, as F=<...>, to the log line when logging a
2217 timeout during the DATA phase of an incoming message.
2218
7fe1560f
PH
2219PH/33 Sieve envelope tests were broken for match types other than :is. I have
2220 applied a patch sanctioned by the Sieve maintainer.
c688b954 2221
ebb6e6d5
PH
2222PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2223 the uid or gid is negative. A case of a negative gid caused this to be
2224 noticed. The fix allows for either to be negative.
2225
9c4e8f60
PH
2226PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2227 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2228 overlooked.
2229
2230PH/36 The change PH/12 above was broken. Fixed it.
2231
d7174846
PH
2232PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2233 the grounds that routing the same address twice would always produce the
2234 same answer. This might have been true once, but it is certainly no
2235 longer true now. Routing a child address may depend on the previous
2236 routing that produced that child. Some complicated redirection strategies
2237 went wrong when messages had multiple recipients, and made Exim's
2238 behaviour dependent on the order in which the addresses were given.
2239
2240 I have moved the duplicate checking until after the routing is complete.
2241 Exim scans the addresses that are assigned to local and remote
2242 transports, and removes any duplicates. This means that more work will be
2243 done, as duplicates will always all be routed, but duplicates are
2244 presumably rare, so I don't expect this is of any significance.
2245
2246 For deliveries to pipes, files, and autoreplies, the duplicate checking
2247 still happens during the routing process, since they are not going to be
2248 routed further.
2249
cfe75fc3
PH
2250PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2251 It corrects a timeout issue with spamd. This is Ian's comment: "The
2252 background is that sometimes spamd either never reads data from a
2253 connection it has accepted, or it never writes response data. The exiscan
2254 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2255 blindly assumes that writes won't block so it may never time out."
2256
be22d70e
PH
2257PH/39 Allow G after quota size as well as K and M.
2258
0612b098
PH
2259PH/40 The value set for $authenticated_id in an authenticator may not contain
2260 binary zeroes or newlines because the value is written to log lines and
2261 to spool files. There was no check on this. Now the value is run through
2262 the string_printing() function so that such characters are converted to
2263 printable escape sequences.
2264
2e0c1448
PH
2265PH/41 $message_linecount is a new variable that contains the total number of
2266 lines in the message. Compare $body_linecount, which is the count for the
2267 body only.
2268
447d236c
PH
2269PH/42 Exim no longer gives details of delivery errors for specific addresses in
2270 bounce and delay warning messages, except in certain special cases, which
2271 are as follows:
2272
2273 (a) An SMTP error message from a remote host;
2274 (b) A message specified in a :fail: redirection;
2275 (c) A message specified in a "fail" command in a system filter;
2276 (d) A message specified in a FAIL return from the queryprogram router;
2277 (e) A message specified by the cannot_route_message router option.
2278
2279 In these cases only, Exim does include the error details in bounce and
2280 warning messages. There are also a few cases where bland messages such
2281 as "unrouteable address" or "local delivery error" are given.
2282
d20976dc
PH
2283PH/43 $value is now also set for the "else" part of a ${run expansion.
2284
f656d135
PH
2285PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2286 being worked on, but at least Exim now implements the latest version to
2287 play with."
2288
2e2a30b4
PH
2289PH/45 In a pipe transport, although a timeout while waiting for the pipe
2290 process to complete was treated as a delivery failure, a timeout while
2291 writing the message to the pipe was logged, but erroneously treated as a
2292 successful delivery. Such timeouts include transport filter timeouts. For
2293 consistency with the overall process timeout, these timeouts are now
2294 treated as errors, giving rise to delivery failures by default. However,
2295 there is now a new Boolean option for the pipe transport called
2296 timeout_defer, which, if set TRUE, converts the failures into defers for
2297 both kinds of timeout. A transport filter timeout is now identified in
2298 the log output.
2299
9176e9f0
PH
2300PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2301 systems where "make" and "gmake" are different, calling "gmake" at top
2302 level broke things. I've arranged for the value of $(MAKE) to be passed
2303 from the Makefile to this script so that it can call the same version of
2304 "make".
2305
7982096b 2306
bbe902f0
PH
2307A note about Exim versions 4.44 and 4.50
2308----------------------------------------
2309
2310Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2311changes of various kinds. As a consequence, a big documentation update was
2312needed. This delayed the release for rather longer than seemed good, especially
2313in the light of a couple of (minor) security issues. Therefore, the changes
2314that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2315release. So 4.44 and 4.50 are in effect two different branches that both start
2316from 4.43.
2317
2318I have left the 4.50 change log unchanged; it contains all the changes since
23194.43. The change log for 4.44 is below; many of its items are identical to
2320those for 4.50. This seems to be the most sensible way to preserve the
2321historical information.
2322
2323
f7b63901 2324Exim version 4.50
495ae4b0
PH
2325-----------------
2326
5fe762f6
PH
2327 1. Minor wording change to the doc/README.SIEVE file.
2328
139059f6 2329 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2330 computation of the current number of files was incorrect.
495ae4b0 2331
7086e875
PH
2332 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2333 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2334 place.
2335
35af9f61
PH
2336 4. Give more explanation in the error message when the command for a transport
2337 filter fails to execute.
2338
b668c215
PH
2339 5. There are several places where Exim runs a non-Exim command in a
2340 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2341 was being done only for the command run by the queryprogram router. It is
2342 now done for all such subprocesses. The other cases are: ${run, transport
2343 filters, and the commands run by the lmtp and pipe transports.
2344
a494b1e1
PH
2345 6. Added CONFIGURE_GROUP build-time option.
2346
2347 7. Some older OS have a limit of 256 on the maximum number of file
2348 descriptors. Exim was using setrlimit() to set 1000 as a large value
2349 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2350 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2351
c5fcb476
PH
2352 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2353 was an oversight, and furthermore, ever since the addition of extra
2354 controls (e.g. 4.43/32), the checks on when to allow different forms of
2355 "control" were broken. There should now be diagnostics for all cases when a
2356 control that does not make sense is encountered.
2357
69358f02
PH
2358 9. Added the /retain_sender option to "control=submission".
2359
5be20824
PH
236010. $recipients is now available in the predata ACL (oversight).
2361
eb2c0248
PH
236211. Tidy the search cache before the fork to do a delivery from a message
2363 received from the command line. Otherwise the child will trigger a lookup
2364 failure and thereby defer the delivery if it tries to use (for example) a
2365 cached ldap connection that the parent has called unbind on.
2366
2a3eea10
PH
236712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2368 of $address_data from the recipient verification was clobbered by the
2369 sender verification.
2370
237113. The value of address_data from a sender verification is now available in
2372 $sender_address_data in subsequent conditions in the ACL statement.
2373
23c7ff99
PH
237414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2375
4deaf07d
PH
237615. Added a new option "connect=<time>" to callout options, to set a different
2377 connection timeout.
2378
926e1192
PH
237916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2380 was its contents. (It was OK if the option was not defined at all.)
2381
650edc6f
PH
238217. A "Completed" log line is now written for messages that are removed from
2383 the spool by the -Mrm option.
2384
2c7db3f5
PH
238518. New variables $sender_verify_failure and $recipient_verify_failure contain
2386 information about exactly what failed.
2387
3d235903
PH
238819. Added -dd to debug only the daemon process.
2389
7c7ad977
PH
239020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2391 handles timeouts, both on the server side and network timeouts. Renamed the
2392 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2393
981756db
PH
239421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2395 It is now set to "smtps".
2396
d4eb88df
PH
239722. $host_address is now set to the target address during the checking of
2398 ignore_target_hosts.
2399
240023. When checking ignore_target_hosts for an ipliteral router, no host name was
2401 being passed; this would have caused $sender_host_name to have been used if
2402 matching the list had actually called for a host name (not very likely,
2403 since this list is usually IP addresses). A host name is now passed as
2404 "[x.x.x.x]".
2405
7d468ab8
PH
240624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2407 code that specifies a non-restarting handler (typically sigaction() in
2408 modern systems) in an attempt to fix a rare and obscure crash bug.
2409
241025. Narrowed the window for a race in the daemon that could cause it to ignore
2411 SIGCHLD signals. This is not a major problem, because they are used only to
2412 wake it up if nothing else does.
2413
62c0818f
PH
241426. A malformed maildirsize file could cause Exim to calculate negative values
2415 for the mailbox size or file count. Odd effects could occur as a result.
2416 The maildirsize information is now recalculated if the size or filecount
2417 end up negative.
2418
26034054
PH
241927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2420 support for a long time. Removed HAVE_SYS_VFS_H.
2421
af66f652
PH
242228. Installed the latest version of exipick from John Jetmore.
2423
90af77f4
PH
242429. In an address list, if the pattern was not a regular expression, an empty
2425 subject address (from a bounce message) matched only if the pattern was an
2426 empty string. Non-empty patterns were not even tested. This was the wrong
2427 because it is perfectly reasonable to use an empty address as part of a
2428 database query. An empty address is now tested by patterns that are
2429 lookups. However, all the other forms of pattern expect the subject to
2430 contain a local part and a domain, and therefore, for them, an empty
2431 address still always fails if the pattern is not itself empty.
2432
d8ef3577
PH
243330. Exim went into a mad DNS loop when attempting to do a callout where the
2434 host was specified on an smtp transport, and looking it up yielded more
2435 than one IP address.
2436
5cb8cbc6
PH
243731. Re-factored the code for checking spool and log partition space into a
2438 function that finds that data and another that does the check. The former
2439 is then used to implement four new variables: $spool_space, $log_space,
2440 $spool_inodes, and $log_inodes.
2441
14702f5b
PH
244232. The RFC2047 encoding function was originally intended for short strings
2443 such as real names; it was not keeping to the 75-character limit for
2444 encoded words that the RFC imposes. It now respects the limit, and
2445 generates multiple encoded words if necessary. To be on the safe side, I
2446 have increased the buffer size for the ${rfc2047: expansion operator from
2447 1024 to 2048 bytes.
2448
063b1e99
PH
244933. It is now permitted to omit both strings after an "if" condition; if the
2450 condition is true, the result is "true". As before, when the second string
2451 is omitted, a false condition yields an empty string. This makes it less
2452 cumbersome to write custom ACL and router conditions.
2453
652e1b65
PH
245434. Failure to deliver a bounce message always caused it to be frozen, even if
2455 there was an errors_to setting on the router. The errors_to setting is now
2456 respected.
2457
6f0c9a4f
PH
245835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2459 canonical form (fully expanded) before being placed in
2460 $sender_host_address.
2461
33397d19
PH
246236. The table in the code that translates DNS record types into text (T_A to
2463 "A" for instance) was missing entries for NS and CNAME. It is just possible
2464 that this could have caused confusion if both these types were looked up
2465 for the same domain, because the text type is used as part of Exim's
2466 per-process caching. But the chance of anyone hitting this buglet seems
2467 very small.
2468
7bb56e1f
PH
246937. The dnsdb lookup has been extended in a number of ways.
2470
2471 (1) There is a new type, "zns", which walks up the domain tree until it
2472 finds some nameserver records. It should be used with care.
2473
ea3bc19b
PH
2474 (2) There is a new type, "mxh", which is like "mx" except that it returns
2475 just the host names, not the priorities.
2476
2477 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2478 looked up. The behaviour when one of the lookups defers can be
2479 controlled by a keyword.
7bb56e1f 2480
ea3bc19b 2481 (4) It is now possible to specify the separator character for use when
7bb56e1f 2482 multiple records are returned.
33397d19 2483
0bcb2a0e
PH
248438. The dnslists ACL condition has been extended: it is now possible to supply
2485 a list of IP addresses and/or domains to be looked up in a particular DNS
2486 domain.
2487
2ac0e484
PH
248839. Added log_selector=+queue_time_overall.
2489
4e1fde53
PH
249040. When running the queue in the test harness, wait just a tad after forking a
2491 delivery process, to get repeatability of debugging output.
2492
de365ded
PH
249341. Include certificate and key file names in error message when GnuTLS fails
2494 to set them up, because the GnuTLS error message doesn't include the name
2495 of the failing file when there is a problem reading it.
2496
f05da2e8
PH
249742. Allow both -bf and -bF in the same test run.
2498
d6453af2
PH
249943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2500
f7b63901
PH
250144. The "Exiscan patch" is now merged into the mainline Exim source.
2502
250345. Sometimes the final signoff response after QUIT could fail to get
2504 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2505 < 0 before doing a fflush(). This bug looks as though it goes back to the
2506 introduction of TLS in release 3.20, but "sometimes" must have been rare
2507 because the tests only now provoked it.
2508
a444213a
PH
250946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2510 (this can affect the format of dates).
2511
0ec020ea
PH
251247. exim_tidydb, when checking for the continued existence of a message for
2513 which it has found a message-specific retry record, was not finding
2514 messages that were in split spool directories. Consequently, it was
2515 deleting retry records that should have stayed in existence.
2516
b1206957
PH
251748. Steve fixed some bugs in eximstats.
2518
251949. The SPA authentication driver was not abandoning authentication and moving
2520 on to the next authenticator when an expansion was forced to fail,
2521 contradicting the general specification for all authenticators. Instead it
2522 was generating a temporary error. It now behaves as specified.
2523
26dd5a95
PH
252450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2525 (the order specifies the preference for clients). The order is now AES256,
2526 AES128, 3DES, ARCFOUR128.
2527
343b2385
PH
252851. Small patch to Sieve code - explicitly set From: when generating an
2529 autoreply.
2530
1c5466b9
PH
253152. Exim crashed if a remote delivery caused a very long error message to be
2532 recorded - for instance if somebody sent an entire SpamAssassin report back
2533 as a large number of 550 error lines. This bug was coincidentally fixed by
2534 increasing the size of one of Exim's internal buffers (big_buffer) that
2535 happened as part of the Exiscan merge. However, to be on the safe side, I
2536 have made the code more robust (and fixed the comments that describe what
2537 is going on).
2538
55ee9ee3
PH
253953. Now that there can be additional text after "Completed" in log lines (if
2540 the queue_time_overall log selector is set), a one-byte patch to exigrep
2541 was needed to allow it to recognize "Completed" as not the last thing in
2542 the line.
2543
d38f8232
PH
254454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2545 patch that reportedly fixes this has been added. I am not expert enough to
2546 create a test for it. This is what the patch creator wrote:
2547
2548 "I found a little strange behaviour of ldap code when working with
2549 Windows 2003 AD Domain, where users was placed in more than one
2550 Organization Units. When I tried to give exim partial DN, the exit code
2551 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2552 But simultaneously result of request was absolutely normal ldap result,
2553 so I produce this patch..."
2554
3295e65b
PH
2555 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2556 REFERENCE, so I have modified the code to exclude the patch when that macro
2557 is not defined.
2558
7102e136
PH
255955. Some experimental protocols are using DNS PTR records for new purposes. The
2560 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2561 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2562 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2563 CAN-2005-0021
7102e136 2564
3ca0ba97
PH
256556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2566
c2bcbe20
PH
256757. Double the size of the debug message buffer (to 2048) so that more of very
2568 long debug lines gets shown.
2569
18ce445d
PH
257058. The exicyclog utility now does better if the number of log files to keep
2571 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2572
1f5b4c3d
PH
257359. Two changes related to the smtp_active_hostname option:
2574
2575 (1) $smtp_active_hostname is now available as a variable.
2576 (2) The default for smtp_banner uses $smtp_active_hostname instead
2577 of $primary_hostname.
2578
b975ba52
PH
257960. The host_aton() function is supposed to be passed a string that is known
2580 to be a valid IP address. However, in the case of IPv6 addresses, it was
2581 not checking this. This is a hostage to fortune. Exim now panics and dies
2582 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2583 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2584 components; fortuitously, this particular loophole had already been fixed
2585 by change 4.50/55 above.
2586
2587 If there are any other similar loopholes, the new check in host_aton()
2588 itself should stop them being exploited. The report I received stated that
2589 data on the command line could provoke the exploit when Exim was running as
2590 exim, but did not say which command line option was involved. All I could
2591 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2592 running as the user.
ea3a6f44 2593 CAN-2005-0021
85b87bc2
PH
2594
259561. There was a buffer overflow vulnerability in the SPA authentication code
2596 (which came originally from the Samba project). I have added a test to the
2597 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2598 CAN-2005-0022
b975ba52 2599
17ffcae7
PH
260062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2601 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2602
d95f9fdb
PH
260363. The daemon start-up calls getloadavg() while still root for those OS that
2604 need the first call to be done as root, but it missed one case: when
2605 deliver_queue_load_max is set with deliver_drop_privilege. This is
2606 necessary for the benefit of the queue runner, because there is no re-exec
2607 when deliver_drop_privilege is set.
2608
86b8287f
PH
260964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2610 This has been fixed.
2611
60dc5e56
PH
261265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2613 was in use, was not putting the data itself into the right store pool;
2614 consequently, it could be overwritten for a subsequent message in the same
2615 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2616 the caching.)
2617
533244af
PH
261866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2619
a5a28604
PH
262067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2621 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2622 the function were treating the return as a boolean value, which happened to
2623 work because 0=false and not-0=true, but is not correct code.
2624
7e634d24
PH
262568. The host_aton() function was not handling scoped IPv6 addresses (those
2626 with, for example, "%eth0" on the end) correctly.
2627
3e11c26b
PH
262869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2629 negated items (that is, ~something) in unsigned ints. Some compilers
2630 apparently mutter when there is no cast.
2631
6729cf78
PH
263270. If an address verification called from an ACL failed, and did not produce a
2633 user-specific message (i.e. there was only a "system" message), nothing was
2634 put in $acl_verify_message. In this situation, it now puts the system
2635 message there.
2636
00f00ca5
PH
263771. Change 4.23/11 added synchronization checking at the start of an SMTP
2638 session; change 4.31/43 added the unwanted input to the log line - except
2639 that it did not do this in the start of session case. It now does.
2640
c9bdd01c
PH
264172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2642 This is wrong and can cause the other end to generate a synchronization
2643 error if it is another Exim or anything else that does the synchronization
2644 check. A QUIT command is no longer sent after a timeout.
2645
d43194df
PH
264673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2647 during host lookups.
2648
fe5b5d0b
PH
264974. The defer_ok option of callout verification was not working if it was used
2650 when verifying addresses in header lines, that is, for this case:
2651
2652 verify = header_sender/callout=defer_ok
2653
76a2d7ba
PH
265475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2655 those file descriptors could be used for SMTP connections. If anything
2656 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2657 could be sent to the SMTP client, causing chaos. The daemon now opens
2658 stdin, stdout, and stderr to /dev/null when it puts itself into the
2659 background.
2660
266176. Arrange for output from Perl's "warn" command to be written to Exim's main
2662 log by default. The user can override this with suitable Perl magic.
2663
04f7d5b9
PH
266477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2665 the log message when discard triggers, was not working for the DATA ACL or
2666 for the non-SMTP ACL.
2667
bc60667e
PH
266878. Error message wording change in sieve.c.
2669
bb6e88ff
PH
267079. If smtp_accept_max_per_host was set, the number of connections could be
2671 restricted to fewer than expected, because the daemon was trying to set up
2672 a new connection before checking whether the processes handling previous
2673 connections had finished. The check for completed processes is now done
2674 earlier. On busy systems, this bug wouldn't be noticed because something
2675 else would have woken the daemon, and it would have reaped the completed
2676 process earlier.
2677
1e70f85b
PH
267880. If a message was submitted locally by a user whose login name contained one
2679 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2680 It caused a spool format error. I have fixed the spool reading code. A
2681 related problem was that the "from" clause in the Received: line became
2682 illegal because of the space(s). It is now covered by ${quote_local_part.
2683
268481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2685 tables).
2686
4e01f9d6
PH
268782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2688
1ee1cef2
PH
268983. Patch from Sieve maintainer to fix unterminated string problem in
2690 "vacation" handling.
2691
6e2b4ccc
PH
269284. Some minor changes to the Linux configuration files to help with other
2693 OS variants using glibc.
2694
8e669ac1
PH
269585. One more patch for Sieve to update vacation handling to latest spec.
2696
495ae4b0 2697
bbe902f0
PH
2698----------------------------------------------------
2699See the note above about the 4.44 and 4.50 releases.
2700----------------------------------------------------
2701
2702
2703Exim version 4.44
2704-----------------
2705
2706 1. Change 4.43/35 introduced a bug that caused file counts to be
2707 incorrectly computed when quota_filecount was set in an appendfile
2708 transport
2709
2710 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2711 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2712 place.
2713
2714 3. Give more explanation in the error message when the command for a transport
2715 filter fails to execute.
2716
2717 4. There are several places where Exim runs a non-Exim command in a
2718 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2719 was being done only for the command run by the queryprogram router. It is
2720 now done for all such subprocesses. The other cases are: ${run, transport
2721 filters, and the commands run by the lmtp and pipe transports.
2722
2723 5. Some older OS have a limit of 256 on the maximum number of file
2724 descriptors. Exim was using setrlimit() to set 1000 as a large value
2725 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2726 systems. I've change it so that if it can't get 1000, it tries for 256.
2727
2728 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2729 was an oversight, and furthermore, ever since the addition of extra
2730 controls (e.g. 4.43/32), the checks on when to allow different forms of
2731 "control" were broken. There should now be diagnostics for all cases when a
2732 control that does not make sense is encountered.
2733
2734 7. $recipients is now available in the predata ACL (oversight).
2735
2736 8. Tidy the search cache before the fork to do a delivery from a message
2737 received from the command line. Otherwise the child will trigger a lookup
2738 failure and thereby defer the delivery if it tries to use (for example) a
2739 cached ldap connection that the parent has called unbind on.
2740
2741 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2742 of $address_data from the recipient verification was clobbered by the
2743 sender verification.
2744
274510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2746 was its contents. (It was OK if the option was not defined at all.)
2747
274811. A "Completed" log line is now written for messages that are removed from
2749 the spool by the -Mrm option.
2750
275112. $host_address is now set to the target address during the checking of
2752 ignore_target_hosts.
2753
275413. When checking ignore_target_hosts for an ipliteral router, no host name was
2755 being passed; this would have caused $sender_host_name to have been used if
2756 matching the list had actually called for a host name (not very likely,
2757 since this list is usually IP addresses). A host name is now passed as
2758 "[x.x.x.x]".
2759
276014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2761 code that specifies a non-restarting handler (typically sigaction() in
2762 modern systems) in an attempt to fix a rare and obscure crash bug.
2763
276415. Narrowed the window for a race in the daemon that could cause it to ignore
2765 SIGCHLD signals. This is not a major problem, because they are used only to
2766 wake it up if nothing else does.
2767
276816. A malformed maildirsize file could cause Exim to calculate negative values
2769 for the mailbox size or file count. Odd effects could occur as a result.
2770 The maildirsize information is now recalculated if the size or filecount
2771 end up negative.
2772
277317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2774 support for a long time. Removed HAVE_SYS_VFS_H.
2775
ea3a6f44 277618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2777
277819. Allow an empty sender to be matched against a lookup in an address list.
2779 Previously the only cases considered were a regular expression, or an
2780 empty pattern.
2781
278220. Exim went into a mad DNS lookup loop when doing a callout where the
2783 host was specified on the transport, if the DNS lookup yielded more than
2784 one IP address.
2785
ea3a6f44
NM
278621. The RFC2047 encoding function was originally intended for short strings
2787 such as real names; it was not keeping to the 75-character limit for
2788 encoded words that the RFC imposes. It now respects the limit, and
2789 generates multiple encoded words if necessary. To be on the safe side, I
2790 have increased the buffer size for the ${rfc2047: expansion operator from
2791 1024 to 2048 bytes.
bbe902f0 2792
ea3a6f44
NM
279322. Failure to deliver a bounce message always caused it to be frozen, even if
2794 there was an errors_to setting on the router. The errors_to setting is now
2795 respected.
bbe902f0
PH
2796
279723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2798 canonical form (fully expanded) before being placed in
2799 $sender_host_address.
2800
280124. Updated eximstats to version 1.33
2802
ea3a6f44
NM
280325. Include certificate and key file names in error message when GnuTLS fails
2804 to set them up, because the GnuTLS error message doesn't include the name
2805 of the failing file when there is a problem reading it.
bbe902f0
PH
2806
280726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2808 As per change 25.
bbe902f0 2809
ea3a6f44
NM
281027. Reset the locale to "C" after calling embedded Perl, in case it was changed
2811 (this can affect the format of dates).
bbe902f0 2812
ea3a6f44
NM
281328. exim_tidydb, when checking for the continued existence of a message for
2814 which it has found a message-specific retry record, was not finding
2815 messages that were in split spool directories. Consequently, it was
2816 deleting retry records that should have stayed in existence.
bbe902f0
PH
2817
281829. eximstats updated to version 1.35
2819 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2820 1.35 - bugfix such that pie charts by volume are generated correctly
2821
ea3a6f44
NM
282230. The SPA authentication driver was not abandoning authentication and moving
2823 on to the next authenticator when an expansion was forced to fail,
2824 contradicting the general specification for all authenticators. Instead it
2825 was generating a temporary error. It now behaves as specified.
bbe902f0 2826
ea3a6f44
NM
282731. The default ordering of permitted cipher suites for GnuTLS was pessimal
2828 (the order specifies the preference for clients). The order is now AES256,
2829 AES128, 3DES, ARCFOUR128.
bbe902f0 2830
ea3a6f44
NM
283131. Small patch to Sieve code - explicitly set From: when generating an
2832 autoreply.
bbe902f0 2833
ea3a6f44
NM
283432. Exim crashed if a remote delivery caused a very long error message to be
2835 recorded - for instance if somebody sent an entire SpamAssassin report back
2836 as a large number of 550 error lines. This bug was coincidentally fixed by
2837 increasing the size of one of Exim's internal buffers (big_buffer) that
2838 happened as part of the Exiscan merge. However, to be on the safe side, I
2839 have made the code more robust (and fixed the comments that describe what
2840 is going on).
bbe902f0 2841
ea3a6f44
NM
284233. Some experimental protocols are using DNS PTR records for new purposes. The
2843 keys for these records are domain names, not reversed IP addresses. The
2844 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2845 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2846 CAN-2005-0021
2847
ea3a6f44
NM
284834. The host_aton() function is supposed to be passed a string that is known
2849 to be a valid IP address. However, in the case of IPv6 addresses, it was
2850 not checking this. This is a hostage to fortune. Exim now panics and dies
2851 if the condition is not met. A case was found where this could be provoked
2852 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2853 components; fortuitously, this particular loophole had already been fixed
2854 by change 4.50/55 or 4.44/33 above.
2855
2856 If there are any other similar loopholes, the new check in host_aton()
2857 itself should stop them being exploited. The report I received stated that
2858 data on the command line could provoke the exploit when Exim was running as
2859 exim, but did not say which command line option was involved. All I could
2860 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2861 running as the user.
bbe902f0
PH
2862 CAN-2005-0021
2863
ea3a6f44
NM
286435. There was a buffer overflow vulnerability in the SPA authentication code
2865 (which came originally from the Samba project). I have added a test to the
2866 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2867 CAN-2005-0022
2868
ea3a6f44
NM
286936. The daemon start-up calls getloadavg() while still root for those OS that
2870 need the first call to be done as root, but it missed one case: when
2871 deliver_queue_load_max is set with deliver_drop_privilege. This is
2872 necessary for the benefit of the queue runner, because there is no re-exec
2873 when deliver_drop_privilege is set.
bbe902f0 2874
ea3a6f44
NM
287537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2876 was in use, was not putting the data itself into the right store pool;
2877 consequently, it could be overwritten for a subsequent message in the same
2878 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2879 the caching.)
bbe902f0 2880
ea3a6f44
NM
288138. Sometimes the final signoff response after QUIT could fail to get
2882 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2883 < 0 before doing a fflush(). This bug looks as though it goes back to the
2884 introduction of TLS in release 3.20, but "sometimes" must have been rare
2885 because the tests only now provoked it.
bbe902f0
PH
2886
2887
495ae4b0
PH
2888Exim version 4.43
2889-----------------
2890
2891 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2892 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2893 Now it returns an integer. A number of calls were still expecting a T/F
2894 return. Fortuitously, in all cases, the tests worked in OK situations,
2895 which is the norm. However, things would have gone wrong on any write
2896 failures on the smtp file descriptor. This function is used when sending
2897 messages over SMTP and also when doing verify callouts.
2898
2899 2. When Exim is called to do synchronous delivery of a locally submitted
2900 message (the -odf or -odi options), it no longer closes stderr before doing
2901 the delivery.
2902
2903 3. Implemented the mua_wrapper option.
2904
2905 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2906
2907 5. Implemented the functions header_remove(), header_testname(),
2908 header_add_at_position(), and receive_remove_recipient(), and exported them
2909 to local_scan().
2910
2911 6. If an ACL "warn" statement specified the addition of headers, Exim already
2912 inserted X-ACL-Warn: at the start if there was no header name. However, it
2913 was not making this test for the second and subsequent header lines if
2914 there were newlines in the string. This meant that an invalid header could
2915 be inserted if Exim was badly configured.
2916
2917 7. Allow an ACL "warn" statement to add header lines at the start or after all
2918 the Received: headers, as well as at the end.
2919
2920 8. Added the rcpt_4xx retry error code.
2921
2922 9. Added postmaster_mailfrom=xxx to callout verification option.
2923
292410. Added mailfrom=xxxx to the callout verification option, for verify=
2925 header_sender only.
2926
292711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2928 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2929
293012. Inserted some casts to stop certain compilers warning when using pointer
2931 differences as field lengths or precisions in printf-type calls (mostly
2932 affecting debugging statements).
2933
293413. Added optional readline() support for -be (dynamically loaded).
2935
293614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2937 same clock tick as a message's arrival, so that its received time was the
2938 same as the "first fail" time on the retry record, and that message
2939 remained on the queue past the ultimate address timeout, every queue runner
2940 would try a delivery (because it was past the ultimate address timeout) but
2941 after another failure, the ultimate address timeout, which should have then
2942 bounced the address, did not kick in. This was a "< instead of <=" error;
2943 in most cases the first failure would have been in the next clock tick
2944 after the received time, and all would be well.
2945
294615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2947 being recognized when the domain list was tested by the match_domain
2948 condition in an expansion string.
2949
295016. Added the ${str2b64: operator.
2951
295217. Exim was always calling setrlimit() to set a large limit for the number of
2953 processes, without checking whether the existing limit was already
2954 adequate. (It did check for the limit on file descriptors.) Furthermore,
2955 errors from getrlimit() and setrlimit() were being ignored. Now they are
2956 logged to the main and panic logs, but Exim does carry on, to try to do its
2957 job under whatever limits there are.
2958
295918. Imported PCRE 5.0.
2960
296119. Trivial typo in log message " temporarily refused connection" (the leading
2962 space).
2963
296420. If the log selector return_path_on_delivery was set and an address was
2965 redirected to /dev/null, the delivery process crashed because it assumed
2966 that a return path would always be set for a "successful" delivery. In this
2967 case, the whole delivery is bypassed as an optimization, and therefore no
2968 return path is set.
2969
297021. Internal re-arrangement: the function for sending a challenge and reading
2971 a response while authentication was assuming a zero-terminated challenge
2972 string. It's now changed to take a pointer and a length, to allow for
2973 binary data in such strings.
2974
297522. Added the cyrus_sasl authenticator (code supplied by MBM).
2976
297723. Exim was not respecting finduser_retries when seeking the login of the
2978 uid under which it was called; it was always trying 10 times. (The default
2979 setting of finduser_retries is zero.) Also, it was sleeping after the final
2980 failure, which is pointless.
2981
298224. Implemented tls_on_connect_ports.
2983
298425. Implemented acl_smtp_predata.
2985
298626. If the domain in control=submission is set empty, Exim assumes that the
2987 authenticated id is a complete email address when it generates From: or
2988 Sender: header lines.
2989
299027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2991 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2992 chown and chgrp in /bin and hostname in /usr/bin.
2993
299428. Exim was keeping the "process log" file open after each use, just as it
2995 does for the main log. This opens the possibility of it remaining open for
2996 long periods when the USR1 signal hits a daemon. Occasional processlog
2997 errors were reported, that could have been caused by this. Anyway, it seems
2998 much more sensible not to leave this file open at all, so that is what now
2999 happens.
3000
300129. The long-running daemon process does not normally write to the log once it
3002 has entered its main loop, and it closes the log before doing so. This is
3003 so that log files can straightforwardly be renamed and moved. However,
3004 there are a couple of unusual error situations where the daemon does write
3005 log entries, and I had neglected to close the log afterwards.
3006
300730. The text of an SMTP error response that was received during a remote
3008 delivery was being truncated at 512 bytes. This is too short for some of
3009 the long messages that one sometimes sees. I've increased the limit to
3010 1024.
3011
301231. It is now possible to make retry rules that apply only when a message has a
3013 specific sender, in particular, an empty sender.
3014
301532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3016 it possible to be selective about when SMTP synchronization is enforced.
3017
301833. Added "control = caseful_local_part" and "control = "caselower_local_part".
3019
302032. Implemented hosts_connection_nolog.
3021
302233. Added an ACL for QUIT.
3023
302434. Setting "delay_warning=" to disable warnings was not working; it gave a
3025 syntax error.
3026
302735. Added mailbox_size and mailbox_filecount to appendfile.
3028
302936. Added control = no_multiline_responses to ACLs.
3030
303137. There was a bug in the logic of the code that waits for the clock to tick
3032 in the case where the clock went backwards by a substantial amount such
3033 that the microsecond fraction of "now" was more than the microsecond
3034 fraction of "then" (but the whole seconds number was less).
3035
303638. Added support for the libradius Radius client library this is found on
3037 FreeBSD (previously only the radiusclient library was supported).
3038
3039
3040Exim version 4.42
3041-----------------
3042
3043 1. When certain lookups returned multiple values in the form name=value, the
3044 quoting of the values was not always being done properly. Specifically:
3045 (a) If the value started with a double quote, but contained no whitespace,
3046 it was not quoted.
3047 (b) If the value contained whitespace other than a space character (i.e.
3048 tabs or newlines or carriage returns) it was not quoted.
3049 This fix has been applied to the mysql and pgsql lookups by writing a
3050 separate quoting function and calling it from the lookup code. The fix
3051 should probably also be applied to nisplus, ibase and oracle lookups, but
3052 since I cannot test any of those, I have not disturbed their existing code.
3053
3054 2. A hit in the callout cache for a specific address caused a log line with no
3055 reason for rejecting RCPT. Now it says "Previous (cached) callout
3056 verification failure".
3057
3058 3. There was an off-by-one bug in the queryprogram router. An over-long
3059 return line was truncated at 256 instead of 255 characters, thereby
3060 overflowing its buffer with the terminating zero. As well as fixing this, I
3061 have increased the buffer size to 1024 (and made a note to document this).
3062
3063 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3064 when Exim is waiting for an SMTP response from a remote server, Exim
3065 restarts its select() call on the socket, thereby resetting its timeout.
3066 This is not a problem when such interrupts are rare. Somebody set up a cron
3067 job to run exiwhat every 2 minutes, which is less than the normal select()
3068 timeout (5 or 10 minutes). This meant that the select() timeout never
3069 kicked in because it was always reset. I have fixed this by comparing the
3070 time when an interrupt arrives with the time at the start of the first call
3071 to select(). If more time than the timeout has elapsed, the interrupt is
3072 treated as a timeout.
3073
3074 5. Some internal re-factoring in preparation for the addition of Sieve
3075 extensions (by MH). In particular, the "personal" test is moved to a
3076 separate function, and given an option for scanning Cc: and Bcc: (which is
3077 not set for Exim filters).
3078
3079 6. When Exim created an email address using the login of the caller as the
3080 local part (e.g. when creating a From: or Sender: header line), it was not
3081 quoting the local part when it contained special characters such as @.
3082
3083 7. Installed new OpenBSD configuration files.
3084
3085 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3086 try to make them clearer.
3087
3088 9. Callout options, other than the timeout value, were being ignored when
3089 verifying sender addresses in header lines. For example, when using
3090
3091 verify = header_sender/callout=no_cache
3092
3093 the cache was (incorrectly) being used.
3094
309510. Added a missing instance of ${EXE} to the exim_install script; this affects
3096 only the Cygwin environment.
3097
309811. When return_path_on_delivery was set as a log selector, if different remote
3099 addresses in the same message used different return paths and parallel
3100 remote delivery occurred, the wrong values would sometimes be logged.
3101 (Whenever a remote delivery process finished, the return path value from
3102 the most recently started remote delivery process was logged.)
3103
310412. RFC 3848 specifies standard names for the "with" phrase in Received: header
3105 lines when AUTH and/or TLS are in use. This is the "received protocol"
3106 field. Exim used to use "asmtp" for authenticated SMTP, without any
3107 indication (in the protocol name) for TLS use. Now it follows the RFC and
3108 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3109 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3110 names appear in log lines as well as in Received: header lines.
3111
311213. Installed MH's patches for Sieve to add the "copy" and "vacation"
3113 extensions, and comparison tests, and to fix some bugs.
3114
311514. Changes to the "personal" filter test:
3116
3117 (1) The test was buggy in that it was just doing the equivalent of
3118 "contains" tests on header lines. For example, if a user's address was
3119 anne@some.where, the "personal" test would incorrectly be true for
3120
3121 To: susanne@some.where
3122
3123 This test is now done by extracting each address from the header in turn,
3124 and checking the entire address. Other tests that are part of "personal"
3125 are now done using regular expressions (for example, to check local parts
3126 of addresses in From: header lines).
3127
3128 (2) The list of non-personal local parts in From: addresses has been
3129 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3130 taken from the Sieve specification recommendations.
3131
3132 (3) If the message contains any header line starting with "List-" it is
3133 treated as non-personal.
3134
3135 (4) The test for "circular" in the Subject: header line has been removed
3136 because it now seems ill-conceived.
3137
313815. Minor typos in src/EDITME comments corrected.
3139
314016. Installed latest exipick from John Jetmore.
3141
314217. If headers_add on a router specified a text string that was too long for
3143 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3144 of string_sprintf() is now avoided.
3145
314618. $message_body_size was not set (it was always zero) when running the DATA
3147 ACL and the local_scan() function.
3148
314919. For the "mail" command in an Exim filter, no default was being set for
3150 the once_repeat time, causing a random time value to be used if "once" was
3151 specified. (If the value happened to be <= 0, no repeat happened.) The
3152 default is now 0s, meaning "never repeat". The "vacation" command was OK
3153 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3154 (I found it when inspecting the code).
3155
315620. There is now an overall timeout for performing a callout verification. It
3157 defaults to 4 times the callout timeout, which applies to individual SMTP
3158 commands during the callout. The overall timeout applies when there is more
3159 than one host that can be tried. The timeout is checked before trying the
3160 next host. This prevents very long delays if there are a large number of
3161 hosts and all are timing out (e.g. when the network connections are timing
3162 out). The value of the overall timeout can be changed by specifying an
3163 additional sub-option for "callout", called "maxwait". For example:
3164
3165 verify = sender/callout=5s,maxwait=20s
3166
316721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3168 to the end before writing, but this should make it even safer).
3169
317022. Exim was forgetting that it had advertised PIPELINING for the second and
3171 subsequent messages on an SMTP connection. It was also not resetting its
3172 memory on STARTTLS and an internal HELO.
3173
317423. When Exim logs an SMTP synchronization error within a session, it now
3175 records whether PIPELINING has been advertised or not.
3176
317724. Added 3 instances of "(long int)" casts to time_t variables that were being
3178 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3179 rather than long int.
3180
318125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3182
318326. Added the never_mail option to autoreply.
3184
3185
3186Exim version 4.41
3187-----------------
3188
3189 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3190 crash if the getsockname() call failed; this can happen if a connection is
3191 closed very soon after it is established. The problem was simply in the
3192 order in which certain operations were done, causing Exim to try to write
3193 to the SMTP stream before it had set up the file descriptor. The bug has
3194 been fixed by making things happen in the correct order.
3195
3196
3197Exim version 4.40
3198-----------------
3199
3200 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3201 before the connection was closed, thus losing the rejection response.
3202
3203 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3204 some early Solaris releases, but causes trouble in current releases where
3205 socklen_t is defined.
3206
3207 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3208 always exist.
3209
3210 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3211 configured.
3212
3213 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3214 that releasing the top of it at the end releases what was used for sub-
3215 expansions (unless the block got too big). However, discard this block if
3216 the first thing is a variable or header, so that we can use its block when
3217 it is dynamic (useful for very large $message_headers, for example).
3218
3219 6. Lookups now cache *every* query, not just the most recent. A new, separate
3220 store pool is used for this. It can be recovered when all lookup caches are
3221 flushed. Lookups now release memory at the end of their result strings.
3222 This has involved some general refactoring of the lookup sources.
3223
3224 7. Some code has been added to the store_xxx() functions to reduce the amount
3225 of flapping under certain conditions.
3226
3227 8. log_incoming_interface used to affect only the <= reception log lines. Now
3228 it causes the local interface and port to be added to several more SMTP log
3229 lines, for example "SMTP connection from", and rejection lines.
3230
3231 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3232
323310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3234
323511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3236 could be overwritten at the end of the current message (or the start of a
3237 new message if it was set in a HELO ACL). The value is now preserved for
3238 the duration of the SMTP connection.
3239
324012. If a transport had a headers_rewrite setting, and a matching header line
3241 contained an unqualified address, that address was qualified, even if it
3242 did not match any rewriting rules. The underlying bug was that the values
3243 of the flags that permit the existence of unqualified sender and recipient
3244 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3245 non-local messages, and by -bnq for local messages) were not being
3246 preserved with the message after it was received.
3247
324813. When Exim was logging an SMTP synchronization error, it could sometimes log
3249 "next input=" as part of the text comprising the host identity instead of
3250 the correct text. The code was using the same buffer for two different
3251 strings. However, depending on which order the printing function evaluated
3252 its arguments, the bug did not always show up. Under Linux, for example, my
3253 test suite worked just fine.
3254
325514. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3256 doesn't work with some older versions of Perl. It has been changed to "my",
3257 which in any case is probably the better facility to use.
3258
325915. A really picky compiler found some instances of statements for creating
3260 error messages that either had too many or two few arguments for the format
3261 string.
3262
326316. The size of the buffer for calls to the DNS resolver has been increased
3264 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3265 for addresses that have a lot of PTR records. This alleviates a problem; it
3266 does not fully solve it.
3267
326817. A dnsdb lookup for PTR records that receives more data than will fit in the
3269 buffer now truncates the list and logs the incident, which is the same
3270 action as happens when Exim is looking up a host name and its aliases.
3271 Previously in this situation something unpredictable would happen;
3272 sometimes it was "internal error: store_reset failed".
3273
327418. If a server dropped the connection unexpectedly when an Exim client was
3275 using GnuTLS and trying to read a response, the client delivery process
3276 crashed while trying to generate an error log message.
3277
327819. If a "warn" verb in an ACL added multiple headers to a message in a single
3279 string, for example:
3280
3281 warn message = H1: something\nH2: something
3282
3283 the text was added as a single header line from Exim's point of view
3284 though it ended up OK in the delivered message. However, searching for the
3285 second and subsequent header lines using $h_h2: did not work. This has been
3286 fixed. Similarly, if a system filter added multiple headers in this way,
3287 the routers could not see them.
3288
328920. Expanded the error message when iplsearch is called with an invalid key to
3290 suggest using net-iplsearch in a host list.
3291
329221. When running tests using -bh, any delays imposed by "delay" modifiers in
3293 ACLs are no longer actually imposed (and a message to that effect is
3294 output).
3295
329622. If a "gecos" field in a passwd entry contained escaped characters, in
3297 particular, if it contained a \" sequence, Exim got it wrong when building
3298 a From: or a Sender: header from that name. A second bug also caused
3299 incorrect handling when an unquoted " was present following a character
3300 that needed quoting.
3301
330223. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3303 was not being matched caselessly.
3304
330524. Arranged for all hyphens in the exim.8 source to be escaped with
3306 backslashes.
3307
330825. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3309 properly. Recipient callout cache records were still being keyed to include
3310 the sender, even when use_sender was set false. This led to far more
3311 callouts that were necessary. The sender is no longer included in the key
3312 when use_sender is false.
3313
331426. Added "control = submission" modifier to ACLs.
3315
331627. Added the ${base62d: operator to decode base 62 numbers.
3317
331828. dnsdb lookups can now access SRV records.
3319
332029. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3321 the configuration file.
3322
332330. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3324 (-v) mode. This makes the output for a verbose queue run more intelligible.
3325
332631. Added a use_postmaster feature to recipient callouts.
3327
332832. Added the $body_zerocount variable, containing the number of binary zero
3329 bytes in the message body.
3330
333133. The time of last modification of the "new" subdirectory is now used as the
3332 "mailbox time last read" when there is a quota error for a maildir
3333 delivery.
3334
333534. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3336
333735. Added +ignore_unknown as a special item in host lists.
3338
333936. Code for decoding IPv6 addresses in host lists is now included, even if
3340 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3341 address was recognized as an IP address, but was then not correctly decoded
3342 into binary, causing unexpected and incorrect effects when compared with
3343 another IP address.
3344
3345
3346Exim version 4.34
3347-----------------
3348
3349 1. Very minor rewording of debugging text in manualroute to say "list of
3350 hosts" instead of "hostlist".
3351
3352 2. If verify=header_syntax was set, and a header line with an unqualified
3353 address (no domain) and a large number of spaces between the end of the
3354 name and the colon was received, the reception process suffered a buffer
3355 overflow, and (when I tested it) crashed. This was caused by some obsolete
3356 code that should have been removed. The fix is to remove it!
3357
3358 3. When running in the test harness, delay a bit after writing a bounce
3359 message to get a bit more predictability in the log output.
3360
3361 4. Added a call to search_tidyup() just before forking a reception process. In
3362 theory, someone could use a lookup in the expansion of smtp_accept_max_
3363 per_host which, without the tidyup, could leave open a database connection.
3364
3365 5. Added the variables $recipient_data and $sender_data which get set from a
3366 lookup success in an ACL "recipients" or "senders" condition, or a router
3367 "senders" option, similar to $domain_data and $local_part_data.
3368
3369 6. Moved the writing of debug_print from before to after the "senders" test
3370 for routers.
3371
3372 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3373 problems for message scanning, either using a data ACL, or using
3374 local_scan() because the Received: header was not generated till after they
3375 were called (in order to set the time as the time of reception completion).
3376 I have revised the way this works. The header is now generated after the
3377 body is received, but before the ACL or local_scan() are called. After they
3378 are run, the timestamp in the header is updated.
3379
3380
3381Exim version 4.33
3382-----------------
3383
3384 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3385 before starting a queue runner without re-exec. This happened only when
3386 deliver_drop_privilege was set or when the Exim user was set to root. The
3387 effect of the bug was that timeouts during subsequent deliveries caused
3388 crashes instead of being properly handled. The handler is now left at its
3389 default (and expected) setting.
3390
3391 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3392 message, again when deliver_drop_privilege is set or Exim is run as root.
3393 The bug described in (1) was not present in this case, but the tidying up
3394 of the other signals was missing. I have made the two cases consistent.
3395
3396 3. The ignore_target_hosts setting on a manualroute router was being ignored
3397 for hosts that were looked up using the /MX notation.
3398
3399 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3400 in domain lists.
3401
3402 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3403 operated on the sender address. After changing the $sender_address to <>
3404 for the sender address verify, Exim was re-instated it as the original
3405 (before rewriting) address, but remembering that it had rewritten it, so it
3406 wasn't rewriting it again. This bug also had the effect of breaking the
3407 sender address verification caching when the sender address was rewritten.
3408
3409 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3410 This has been changed so that if the ip literal address matches
3411 ignore_target_hosts, the router declines.
3412
3413 7. Added expansion conditions match_domain, match_address, and match_local_
3414 part (NOT match_host).
3415
3416 8. The placeholder for the Received: header didn't have a length field set.
3417
3418 9. Added code to Exim itself and to exim_lock to test for a specific race
3419 condition that could lead to file corruption when using MBX delivery. The
3420 issue is with the lockfile that is created in /tmp. If this file is removed
3421 after a process has opened it but before that process has acquired a lock,
3422 there is the potential for a second process to recreate the file and also
3423 acquire a lock. This could lead to two Exim processes writing to the file
3424 at the same time. The added code performs the same test as UW imapd; it
3425 checks after acquiring the lock that its file descriptor still refers to
3426 the same named file.
3427
342810. The buffer for building added header lines was of fixed size, 8192 bytes.
3429 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3430 when Exim is built.
3431
343211. Added the smtp_active_hostname option. If used, this will typically be made
3433 to depend on the incoming interface address. Because $interface_address is
3434 not set up until the daemon has forked a reception process, error responses
3435 that can happen earlier (such as "too many connections") no longer contain
3436 a host name.
3437
343812. If an expansion in a condition on a "warn" statement fails because a lookup
3439 defers, the "warn" statement is abandoned, and the next ACL statement is
3440 processed. Previously this caused the whole ACL to be aborted.
3441
344213. Added the iplsearch lookup type.
3443
344414. Added ident_timeout as a log selector.
3445
344615. Added tls_certificate_verified as a log selector.
3447
344816. Added a global option tls_require_ciphers (compare the smtp transport
3449 option of the same name). This controls incoming TLS connections.
3450
345117. I finally figured out how to make tls_require_ciphers do a similar thing
3452 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3453 before starting the TLS session.
3454
345518. Tabs are now shown as \t in -bP output.
3456
345719. If the log selector return_path_on_delivery was set, Exim crashed when
3458 bouncing a message because it had too many Received: header lines.
3459
346020. If two routers both had headers_remove settings, and the first one included
3461 a superfluous trailing colon, the final name in the first list and the
3462 first name in the second list were incorrectly joined into one item (with a
3463 colon in the middle).
3464
3465
3466Exim version 4.32
3467-----------------
3468
3469 1. Added -C and -D options to the exinext utility, mainly to make it easier
3470 to include in the automated testing, but these could be helpful when
3471 multiple configurations are in use.
3472
3473 2. The exinext utility was not formatting the output nicely when there was
3474 an alternate port involved in the retry record key, nor when there was a
3475 message id as well (for retries that were specific to a specific message
3476 and a specific host). It was also confused by IPv6 addresses, because of
3477 the additional colons they contain. I have fixed the IPv4 problem, and
3478 patched it up to do a reasonable job for IPv6.
3479
3480 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3481 delivery, the log line now contains "pipelined" if PIPELINING was used.
3482
3483 4. An SMTP transport process used to panic and die if the bind() call to set
3484 an explicit outgoing interface failed. This has been changed; it is now
3485 treated in the same way as a connect() failure.
3486
3487 5. A reference to $sender_host_name in the part of a conditional expansion
3488 that was being skipped was still causing a DNS lookup. This no longer
3489 occurs.
3490
3491 6. The def: expansion condition was not recognizing references to header lines
3492 that used bh_ and bheader_.
3493
3494 7. Added the _cache feature to named lists.
3495
3496 8. The code for checking quota_filecount in the appendfile transport was
3497 allowing one more file than it should have been.
3498
3499 9. For compatibility with Sendmail, the command line option
3500
3501 -prval:sval
3502
3503 is equivalent to
3504
3505 -oMr rval -oMs sval
3506
3507 and sets the incoming protocol and host name (for trusted callers). The
3508 host name and its colon can be omitted when only the protocol is to be set.
3509 Note the Exim already has two private options, -pd and -ps, that refer to
3510 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3511 "s", but I don't think that's a major issue.
3512
351310. A number of refactoring changes to the code, none of which should affect
3514 Exim's behaviour:
3515
3516 (a) The number of logging options was getting close to filling up the
3517 32-bit word that was used as a bit map. I have split them into two classes:
3518 those that are passed in the argument to log_write(), and those that are
3519 only ever tested independently outside of that function. These are now in
3520 separate 32-bit words, so there is plenty of room for expansion again.
3521 There is no change in the user interface or the logging behaviour.
3522
3523 (b) When building, for example, log lines, the code previously used a
3524 macro that called string_cat() twice, in order to add two strings. This is
3525 not really sufficiently general. Furthermore, there was one instance where
3526 it was actually wrong because one of the argument was used twice, and in
3527 one call a function was used. (As it happened, calling the function twice
3528 did not affect the overall behaviour.) The macro has been replaced by a
3529 function that can join an arbitrary number of extra strings onto a growing
3530 string.
3531
3532 (c) The code for expansion conditions now uses a table and a binary chop
3533 instead of a serial search (which was left over from when there were very
3534 few conditions). Also, it now recognizes conditions like "pam" even when
3535 the relevant support is not compiled in: a suitably worded error message is
3536 given if an attempt is made to use such a condition.
3537
353811. Added ${time_interval:xxxxx}.
3539</