New expansion operator: reverse_ip
[exim.git] / doc / doc-txt / ChangeLog
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83e029d5 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.622 2010/06/05 23:50:18 pdp Exp $
495ae4b0
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
97fd1e48
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6Exim version 4.73
7
8PP/01 Date: & Message-Id: revert to normally being appended to a message,
9 only prepend for the Resent-* case. Fixes regression introduced in
10 Exim 4.70 by NM/22 for Bugzilla 607.
11
6901c596
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12PP/02 Include check_rfc2047_length in configure.default because we're seeing
13 increasing numbers of administrators be bitten by this.
14
a8c8d6b5
JJ
15JJ/01 Added DISABLE_DKIM and comment to src/EDITME
16
77bb000f
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17PP/03 Bugzilla 994: added openssl_options main configuration option.
18
a29e5231
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19PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
20
21PP/05 Bugzilla 834: provide a permit_codedump option for pipe transports.
22
55c75993
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23PP/06 Adjust NTLM authentication to handle SASL Initial Response.
24
453a6645
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25PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
26 without a peer certificate (I believe), leading to a segfault because of
27 an assumption that peers always have certificates. Be a little more
28 paranoid. Problem reported by Martin Tscholak.
29
8544e77a
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30PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
31 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
32 NB: ClamAV planning to remove STREAM in "middle of 2010".
33
83e029d5
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34PP/09 Implemented reverse_ip expansion operator.
35
55c75993 36
465e92cf
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37Exim version 4.72
38-----------------
39
453a6645
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40JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
41 $data_path, and $header_path variables; fixed documentation bugs and
42 typos
465e92cf 43
453a6645
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44JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
45 exipick to access non-standard spools, including the "frozen" queue
46 (Finput)
edae0343 47
9bd3e22c
NM
48NM/01 Bugzilla 965: Support mysql stored procedures.
49 Patch from Alain Williams
50
bb576ff7
NM
51NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
52
5a1a5845
NM
53NM/03 Bugzilla 955: Documentation fix for max_rcpts.
54 Patch from Andreas Metzler
55
981a9fad
NM
56NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
57 Patch from Kirill Miazine
58
7fc497ee
NM
59NM/05 Bugzilla 671: Added umask to procmail example.
60
1a41defa
JJ
61JJ/03 installed exipick 20100323.0, fixing doc bug
62
a466095c 63NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 64 directory. Notification and patch from Dan Rosenberg.
a466095c 65
94a6bd0b
NM
66TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
67
68TK/02 Improve log output when DKIM signing operation fails.
69
70MH/01 Treat the transport option dkim_domain as a colon separated
71 list, not as a single string, and sign the message with each element,
72 omitting multiple occurences of the same signer.
73
c1b141a8
NM
74NM/07 Null terminate DKIM strings, Null initialise DKIM variable
75 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 76
b26eacf1 77NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
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78 Patch by Simon Arlott
79
179c5980 80PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 81 MBX locking. Notification from Dan Rosenberg.
179c5980 82
9bd3e22c 83
7c6d71af
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84Exim version 4.71
85-----------------
86
87TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body
88
f013fb92
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89NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
90
0eb8eedd
NM
91NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
92
663ee6d9
NM
93NM/03 Bugzilla 847: Enable DNSDB lookup by default.
94
177ebd9b
NM
95NM/04 Bugzilla 915: Flag broken perl installation during build.
96
7c6d71af 97
210f147e
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98Exim version 4.70
99-----------------
100
cdd3bb85 101TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 102 "spamd_address" if it starts with a dollar sign.
cdd3bb85
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103
104TK/02 Write list of recipients to X-Envelope-Sender header when building
105 the mbox-format spool file for content scanning (suggested by Jakob
106 Hirsch)
107
108TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
109 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 110 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
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111
112TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
113 by Mark Daniel Reidel <mr@df.eu>.
114
210f147e
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115NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
116 When building exim an external PCRE library is now needed -
117 PCRE is a system library on the majority of modern systems.
118 See entry on PCRE_LIBS in EDITME file.
119
deafd5b3
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120NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
121 conversation. Added nologin parameter to request.
122 Patch contributed by Kirill Miazine
123
089793a4
TF
124TF/01 Do not log submission mode rewrites if they do not change the address.
125
5f16ca82
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126TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
127
dae9d94e
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128NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
129 log files in place. Contributed by Roberto Lima
130
3f0da4d0
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131NM/04 Bugzilla 667: close socket used by dovecot authenticator
132
06864c44
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133TF/03 Bugzilla 615: When checking the local_parts router precondition
134 after a local_part_suffix or local_part_prefix option, Exim now
135 does not use the address's named list lookup cache, since this
136 contains cached lookups for the whole local part.
137
65a7d8c3
NM
138NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
139 Robert Millan. Documentation is in experimental-spec.txt
140
23510047 141TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 142
7d8eec3a 143NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 144
7d8eec3a 145NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
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146 Patch provided by Jan Srzednicki
147
89dec7b6
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148TF/05 Leading white space used to be stripped from $spam_report which
149 wrecked the formatting. Now it is preserved.
5f28a6e8 150
a99de90c
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151TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
152 that they are available at delivery time.
153
e2803e40
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154TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
155
7199e1ee
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156TF/08 TLS error reporting now respects the incoming_interface and
157 incoming_port log selectors.
158
e276e04b
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159TF/09 Produce a more useful error message if an SMTP transport's hosts
160 setting expands to an empty string.
161
ce552449
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162NM/06 Bugzilla 744: EXPN did not work under TLS.
163 Patch provided by Phil Pennock
164
e765a0f1
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165NM/07 Bugzilla 769: Extraneous comma in usage fprintf
166 Patch provided by Richard Godbee
167
4f054c63 168NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 169 acl_smtp_notquit, added index entry.
4f054c63 170
24c929a2
NM
171NM/09 Bugzilla 787: Potential buffer overflow in string_format
172 Patch provided by Eugene Bujak
173
cf73943b
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174NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
175 Patch provided by Maxim Dounin
176
b52bc06e
NM
177NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
178 Patch provided by Phil Pennock
179
447de4b0
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180NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
181
4c69d561
NM
182NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
183 Patch provided by Brad "anomie" Jorsch
184
d5c39246 185NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
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186 Patch provided by Dean Brooks
187
0b23848a
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188TK/05 Add native DKIM support (does not depend on external libraries).
189
8f3414a1 190NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
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191 Patch provided by Graeme Fowler
192
fb6f955d
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193NM/16 Bugzilla 851: Documentation example syntax fix.
194
195NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 196
dbb0bf41
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197NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
198
f3766eb5
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199NM/19 Bugzilla 745: TLS version reporting
200 Patch provided by Phil Pennock
201
202NM/20 Bugzilla 167: bool: condition support
203 Patch provided by Phil Pennock
36f12725 204
e6060e2c
NM
205NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
206 Patch provided by Phil Pennock
207
7496b417 208NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
209 Patch provided by Brad "anomie" Jorsch
210
d5c13d66
NM
211NM/23 Bugzilla 687: Fix misparses in eximstats
212 Patch provided by Heiko Schlittermann
213
b2335c0b
NM
214NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
215 Patch provided by Heiko Schlittermann
216
f4cd9433 217NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 218 plus update to original patch.
f4cd9433
NM
219
220NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 221
8dc71ab3
NM
222NM/27 Bugzilla 802: Improvements to local interface IP addr detection
223 Patch provided by David Brownlee
224
400eda43
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225NM/28 Bugzilla 807: Improvements to LMTP delivery logging
226
227NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 228
07af267e
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229NM/30 Bugzilla 888: TLS documentation bugfixes
230
0cc09577 231NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 232
17792b53
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233NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
234 Unlike the original bugzilla I have changed all shell scripts in src tree
235
52383f8f
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236NM/33 Bugzilla 898: Transport filter timeout fix
237 Patch by Todd Rinaldo
238
5ca6d115
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239NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
240 Patch by Serge Demonchaux
241
baee9eee
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242NM/35 Bugzilla 39: Base64 decode bug fixes
243 Patch by Jakob Hirsch
244
e93a964c
NM
245NM/36 Bugzilla 909: Correct connect() call in dcc code
246
9bf3d68f
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247NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
248
249NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 250
30339e0f
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251NM/39 Bugzilla 911: Fixed MakeLinks build script
252
deafd5b3 253
47db1125
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254Exim version 4.69
255-----------------
256
4b3504d0
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257TK/01 Add preliminary DKIM support. Currently requires a forked version of
258 ALT-N's libdkim that I have put here:
259 http://duncanthrax.net/exim-experimental/
260
261 Note to Michael Haardt: I had to rename some vars in sieve.c. They
262 were called 'true' and it seems that C99 defines that as a reserved
263 keyword to be used with 'bool' variable types. That means you could
264 not include C99-style headers which use bools without triggering
265 build errors in sieve.c.
266
81ea09ca
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267NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
268 as mailq or other aliases. Changed the --help handling significantly
269 to do whats expected. exim_usage() emits usage/help information.
270
f13cddcb
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271SC/01 Added the -bylocaldomain option to eximstats.
272
8ad076b2
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273NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
274
a843aaa6
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275NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
276
47db1125
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277NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
278
279
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280Exim version 4.68
281-----------------
282
283PH/01 Another patch from the Sieve maintainer.
284
6a3bceb1
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285PH/02 When an IPv6 address is converted to a string for single-key lookup
286 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
287 dots are used instead of colons so that keys in lsearch files need not
288 contain colons. This was done some time before quoting was made available
289 in lsearch files. However, iplsearch files do require colons in IPv6 keys
290 (notated using the quote facility) so as to distinguish them from IPv4
291 keys. This meant that lookups for IP addresses in host lists did not work
292 for iplsearch lookups.
293
294 This has been fixed by arranging for IPv6 addresses to be expressed with
295 colons if the lookup type is iplsearch. This is not incompatible, because
296 previously such lookups could never work.
297
298 The situation is now rather anomolous, since one *can* have colons in
299 ordinary lsearch keys. However, making the change in all cases is
300 incompatible and would probably break a number of configurations.
301
2e30fa9d
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302TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
303 version.
304
0806a9c5
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305MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
306 conversion specification without a maximum field width, thereby enabling
307 a rogue spamd server to cause a buffer overflow. While nobody in their
308 right mind would setup Exim to query an untrusted spamd server, an
309 attacker that gains access to a server running spamd could potentially
310 exploit this vulnerability to run arbitrary code as the Exim user.
311
ae276964
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312TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
313 $primary_hostname instead of what libspf2 thinks the hosts name is.
314
0f2cbd1b
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315MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
316 a directory entry by the name of the lookup key. Previously, if a
317 symlink pointed to a non-existing file or a file in a directory that
318 Exim lacked permissions to read, a lookup for a key matching that
319 symlink would fail. Now it is enough that a matching directory entry
320 exists, symlink or not. (Bugzilla 503.)
321
2b85bce7
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322PH/03 The body_linecount and body_zerocount variables are now exported in the
323 local_scan API.
324
93655c46
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325PH/04 Added the $dnslist_matched variable.
326
6c512171
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327PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
328 This means they are set thereafter only if the connection becomes
329 encrypted.
330
331PH/06 Added the client_condition to authenticators so that some can be skipped
332 by clients under certain conditions.
333
aa6dc513
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334PH/07 The error message for a badly-placed control=no_multiline_responses left
335 "_responses" off the end of the name.
336
a96603a0
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337PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
338
8f240103
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339PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
340 (without spaces) instead of just copying the configuration text.
341
342PH/10 Added the /noupdate option to the ratelimit ACL condition.
343
d677b2f2
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344PH/11 Added $max_received_linelength.
345
d52120f2
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346PH/12 Added +ignore_defer and +include_defer to host lists.
347
64f2600a
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348PH/13 Installed PCRE version 7.2. This needed some changes because of the new
349 way in which PCRE > 7.0 is built.
350
8669f003
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351PH/14 Implemented queue_only_load_latch.
352
a4dc33a8
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353PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
354 MAIL command. The effect was to mangle the value on 64-bit systems.
355
d6a60c0f
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356PH/16 Another patch from the Sieve maintainer.
357
8f128379
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358PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
359
8932dffe
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360PH/18 If a system quota error occurred while trying to create the file for
361 a maildir delivery, the message "Mailbox is full" was not appended to the
362 bounce if the delivery eventually timed out. Change 4.67/27 below applied
363 only to a quota excession during the actual writing of the file.
d6a60c0f 364
ddea74fa 365PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
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366 characters?) which causes problems in log lines. The DN values are now
367 passed through string_printing() before being added to log lines.
368
ddea74fa 369PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
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370 and InterBase are left for another time.)
371
ddea74fa
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372PH/21 Added message_body_newlines option.
373
ce9f225c
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374PH/22 Guard against possible overflow in moan_check_errorcopy().
375
19897d52
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376PH/23 POSIX allows open() to be a macro; guard against that.
377
bc64a74d
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378PH/24 If the recipient of an error message contained an @ in the local part
379 (suitably quoted, of course), incorrect values were put in $domain and
380 $local_part during the evaluation of errors_copy.
381
eb4c0de6 382
b4ed4da0
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383Exim version 4.67
384-----------------
385
22ad45c9
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386MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
387 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
388 Jan Srzednicki.
389
b4ed4da0
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390PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
391 issue a MAIL command.
392
431b7361
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393PH/02 In an ACL statement such as
394
395 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
396
397 if a client was not listed at all, or was listed with a value other than
398 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
399 the condition was not true (as it should be), so access was not denied.
400 The bug was that the ! inversion was incorrectly passed on to the second
401 item. This has been fixed.
402
403PH/03 Added additional dnslists conditions == and =& which are different from
404 = and & when the dns lookup returns more than one IP address.
405
83da1223
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406PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
407 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
408
54fc8428
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409PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
410 FSYNC, which compiles an option called disable_fsync that allows for
411 bypassing fsync(). The documentation is heavily laced with warnings.
412
34c5e8dd
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413SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
414
bbe15da8
PH
415PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
416 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
417 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
418 including adding "make clean"; (3) Added -fPIC when compiling the test
419 dynamically loaded module, to get rid of a warning.
420
0e8a9471
MH
421MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
422 message fails, move_frozen_messages = true and ignore_bounce_errors_after
423 = 0s. The bug is otherwise harmless.
424
f0872424
PH
425PH/07 There was a bug in the dovecot authenticator such that the value of
426 $auth1 could be overwritten, and so not correctly preserved, after a
427 successful authentication. This usually meant that the value preserved by
428 the server_setid option was incorrect.
429
b01dd148
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430PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
431
6bf342e1
PH
432PH/09 Installed PCRE release 7.0.
433
273f34d0
PH
434PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
435 run for batched SMTP input. It is now run at the start of every message
436 in the batch. While fixing this I discovered that the process information
437 (output by running exiwhat) was not always getting set for -bs and -bS
438 input. This is fixed, and it now also says "batched" for BSMTP.
439
cf8b11a5
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440PH/11 Added control=no_pipelining.
441
41c7c167
PH
442PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
443 patch, slightly modified), and move the expansion of helo_data till after
444 the connection is made in the smtp transport (so it can use these
445 values).
446
9c57cbc0
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447PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
448
f3f065bb
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449PH/14 Added log_selector = +pid.
450
047bdd8c
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451PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
452
0ce9abe6
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453PH/16 Add ${if forany and ${if forall.
454
0e22dfd1
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455PH/17 Added dsn_from option to vary the From: line in DSNs.
456
4c590bd1
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457PH/18 Flush SMTP output before performing a callout, unless control =
458 no_callout_flush is set.
459
09945f1e
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460PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
461 was true (the default) a successful delivery failed to delete the retry
462 item, thus causing premature timeout of the address. The bug is now
463 fixed.
464
c51b8e75
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465PH/20 Added hosts_avoid_pipelining to the smtp transport.
466
e28326d8
PH
467PH/21 Long custom messages for fakedefer and fakereject are now split up
468 into multiline reponses in the same way that messages for "deny" and
469 other ACL rejections are.
470
75b1493f
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471PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
472 with slight modification.
473
7c5214ec
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474PH/23 Applied sieve patches from the maintainer "tracking the latest notify
475 draft, changing the syntax and factoring some duplicate code".
476
4311097e
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477PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
478 for deliveries of the second and subsequent messages over the same SMTP
479 connection.
480
29f89cad
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481PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
482 ${reduce, with only minor "tidies".
483
5e687460
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484SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
485
c3611384
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486PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
487 expansion side effects.
488
5a11a7b4
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489PH/27 When a message times out after an over-quota error from an Exim-imposed
490 quota, the bounce message says "mailbox is full". This message was not
491 being given when it was a system quota that was exceeded. It now should
492 be the same.
493
0e20aff9
MH
494MH/03 Made $recipients available in local_scan(). local_scan() already has
495 better access to the recipient list through recipients_list[], but
496 $recipients can be useful in postmaster-provided expansion strings.
497
ca86f471
PH
498PH/28 The $smtp_command and $smtp_command_argument variables were not correct
499 in the case of a MAIL command with additional options following the
500 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
501 were accidentally chopped off.
502
a14e5636
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503PH/29 SMTP synchronization checks are implemented when a command is read -
504 there is a check that no more input is waiting when there shouldn't be
505 any. However, for some commands, a delay in an ACL can mean that it is
506 some time before the response is written. In this time, more input might
507 arrive, invalidly. So now there are extra checks after an ACL has run for
508 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
509 pipelining has not been advertised.
510
ec95d1a6
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511PH/30 MH's patch to allow iscntrl() characters to be list separators.
512
42855d71
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513PH/31 Unlike :fail:, a custom message specified with :defer: was not being
514 returned in the SMTP response when smtp_return_error_details was false.
515 This has been fixed.
516
57c2c631
PH
517PH/32 Change the Dovecot authenticator to use read() and write() on the socket
518 instead of the C I/O that was originally supplied, because problems were
519 reported on Solaris.
520
58c01c94
PH
521PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
522 Exim which did not show up earlier: it was assuming that a call to
523 SSL_CTX_set_info_callback() might give an error value. In fact, there is
524 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
525 was a macro that became an assignment, so it seemed to work. This has
526 changed to a proper function call with a void return, hence the compile
527 error. Exim's code has been fixed.
528
dee5a20a
PH
529PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
530 cpus.
531
d2ee6114
PH
532PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
533
b2d5182b
PH
534PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
535
79749a79
PH
536PH/37 If a message is not accepted after it has had an id assigned (e.g.
537 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
538 "Completed" line in the log. When some messages of this type were
539 selected by exigrep, they were listed as "not completed". Others were
540 picked up by some special patterns. I have improved the selection
541 criteria to be more general.
79749a79 542
c456d9bb
PH
543PH/38 The host_find_failed option in the manualroute router can now be set
544 to "ignore", to completely ignore a host whose IP address cannot be
545 found. If all hosts are ignored, the behaviour is controlled by the new
546 host_all_ignored option.
547
cd9868ec
PH
548PH/39 In a list of hosts for manualroute, if one item (either because of multi-
549 homing or because of multiple MX records with /mx) generated more than
550 one IP address, and the following item turned out to be the local host,
551 all the secondary addresses of the first item were incorrectly removed
552 from the list, along with the local host and any following hosts (which
553 is what is supposed to happen).
554
ebeaf996
PH
555PH/40 When Exim receives a message, it writes the login name, uid, and gid of
556 whoever called Exim into the -H file. In the case of the daemon it was
557 behaving confusingly. When first started, it used values for whoever
558 started the daemon, but after a SIGHUP it used the Exim user (because it
559 calls itself on a restart). I have changed the code so that it now always
560 uses the Exim user.
561
2679d413
PH
562PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
563 message are rejected with the same error (e.g. no authentication or bad
564 sender address), and a DATA command is nevertheless sent (as can happen
565 with PIPELINING or a stupid MUA), the error message that was given to the
566 RCPT commands is included in the rejection of the DATA command. This is
567 intended to be helpful for MUAs that show only the final error to their
568 users.
569
84024b72
PH
570PH/42 Another patch from the Sieve maintainer.
571
8005d38e
SC
572SC/02 Eximstats - Differentiate between permanent and temporary rejects.
573 Eximstats - Fixed some broken HTML links and added missing column headers
574 (Jez Hancock).
575 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
576 columns for Rejects, Temp Rejects, Ham, and Spam rows.
577
3298c6c6
SC
578SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
579
a43a27c5
PH
580PH/43 Yet another patch from the Sieve maintainer.
581
58eb016e 582PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
583 the response to the final '.' that terminates a message, but only in the
584 case where the client has not sent further data following the '.'
585 (unfortunately, this is allowed). However, in many cases there won't be
586 any further data because there won't be any more messages to send. A call
587 to select() can be used: if it shows that the input is "ready", there is
588 either input waiting, or the socket has been closed. An attempt to read
589 the next input character can distinguish the two cases. Previously, Exim
58eb016e 590 would have sent an OK response which the client would never have see.
563b63fa
PH
591 This could lead to message repetition. This fix should cure that, at
592 least in a lot of common cases.
58eb016e 593
b43a74ea
PH
594PH/45 Do not advertise STARTTLS in response to HELP unless it would be
595 advertised in response to EHLO.
596
b4ed4da0 597
5dd1517f
PH
598Exim version 4.66
599-----------------
600
601PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
602 fixed by 4.65/MH/01 (is this a record?) are fixed:
603
604 (i) An empty string was always treated as zero by the numeric comparison
605 operators. This behaviour has been restored.
606
607 (ii) It is documented that the numeric comparison operators always treat
608 their arguments as decimal numbers. This was broken in that numbers
609 starting with 0 were being interpreted as octal.
610
611 While fixing these problems I realized that there was another issue that
612 hadn't been noticed. Values of message_size_limit (both the global option
613 and the transport option) were treated as octal if they started with 0.
614 The documentation was vague. These values are now always treated as
615 decimal, and I will make that clear in the documentation.
616
617
93cfa765
TK
618Exim version 4.65
619-----------------
620
621TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
622 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
623 versions. (#438)
624
d6066548
MH
625MH/01 Don't check that the operands of numeric comparison operators are
626 integers when their expansion is in "skipping" mode (fixes bug
627 introduced by 4.64-PH/07).
628
4362ff0d
PH
629PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
630 child addresses, Exim now panics and dies. Previously, because the count
631 is held in a short int, deliveries were likely to be lost. As such a
632 large number of recipients for a single message is ridiculous
633 (performance will be very, very poor), I have chosen to impose a limit
634 rather than extend the field.
635
93cfa765 636
944e9e9c
TF
637Exim version 4.64
638-----------------
aa41d2de 639
21d74bd9
TK
640TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
641 leftover -K file (the existence of which was triggered by #402).
642 While we were at it, introduced process PID as part of the -K
643 filename. This should rule out race conditions when creating
644 these files.
645
646TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
647 processing considerably. Previous code took too long for large mails,
648 triggering a timeout which in turn triggers #401.
649
650TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
651 in the DK code in transports.c. sendfile() is not really portable,
652 hence the _LINUX specificness.
944e9e9c
TF
653
654TF/01 In the add_headers option to the mail command in an Exim filter,
655 there was a bug that Exim would claim a syntax error in any
656 header after the first one which had an odd number of characters
657 in the field name.
658
2b1c6e3a
PH
659PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
660 callout verification, Exim cached a "reject" for the entire domain. This
661 is correct for most verifications, but it is not correct for a recipient
662 verification with use_sender or use_postmaster set, because in that case
663 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
664 case of MAIL FROM:<> rejection from other early rejections (e.g.
665 rejection of HELO). When verifying a recipient using a non-null MAIL
666 address, the cache is ignored if it shows MAIL FROM:<> rejection.
667 Whatever the result of the callout, the value of the domain cache is
668 left unchanged (for any other kind of callout, getting as far as trying
669 RCPT means that the domain itself is ok).
670
1f872c80
PH
671PH/02 Tidied a number of unused variable and signed/unsigned warnings that
672 gcc 4.1.1 threw up.
673
674PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
675 manifest itself as EPIPE rather than ECONNECT. When tidying away a
676 session, the daemon ignores ECONNECT errors and logs others; it now
677 ignores EPIPE as well.
678
d203e649
PH
679PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
680 (quoted-printable decoding).
681
cc2ed8f7 682PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 683 later the small subsequent patch to fix an introduced bug.
f951fd57 684
ddfcd446
PH
685PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
686
d45b1de8
PH
687PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
688
689PH/08 An error is now given if message_size_limit is specified negative.
690
38a0a95f 691PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 692 to be given (somewhat) arbitrary names.
38a0a95f 693
a2405d83
JJ
694JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
695 in 4.64-PH/09.
696
697JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
698 miscellaneous code fixes
699
6ea85e9a
PH
700PH/10 Added the log_reject_target ACL modifier to specify where to log
701 rejections.
702
26da7e20
PH
703PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
704 hostname. This is wrong, because it relates to the incoming message (and
705 probably the interface on which it is arriving) and not to the outgoing
706 callout (which could be using a different interface). This has been
707 changed to use the value of the helo_data option from the smtp transport
708 instead - this is what is used when a message is actually being sent. If
709 there is no remote transport (possible with a router that sets up host
710 addresses), $smtp_active_hostname is used.
6ea85e9a 711
14aa5a05 712PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 713 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
714 (a) The code assumed that strncpy() returns a negative number on buffer
715 overflow, which isn't the case. Replaced with Exim's string_format()
716 function.
717 (b) There were several signed/unsigned issues. I just did the minimum
718 hacking in of casts. There is scope for a larger refactoring.
719 (c) The code used strcasecmp() which is not a standard C function.
720 Replaced with Exim's strcmpic() function.
721 (d) The code set only $1; it now sets $auth1 as well.
722 (e) A simple test gave the error "authentication client didn't specify
723 service in request". It would seem that Dovecot has changed its
724 interface. Fortunately there's a specification; I followed it and
725 changed what the client sends and it appears to be working now.
726
ff75a1f7
PH
727PH/13 Added $message_headers_raw to provide the headers without RFC 2047
728 decoding.
729
e6f6568e
PH
730PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
731 address A is aliased to B and C, where B exists and C does not. Without
732 -v the output is "A verified" because verification stops after a
733 successful redirection if more than one address is generated. However,
734 with -v the child addresses are also verified. Exim was outputting "A
735 failed to verify" and then showing the successful verification for C,
736 with its parentage. It now outputs "B failed to verify", showing B's
737 parentage before showing the successful verification of C.
738
d6f6e0dc
PH
739PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
740 look up a TXT record in a specific list after matching in a combined
741 list.
742
322050c2
PH
743PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
744 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
745 they consult the DNS. I had assumed they would set it the way they
746 wanted; and indeed my experiments on Linux seem to show that in some
747 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
748 To be on the safe side, however, I have now made the interface to
749 host_find_byname() similar to host_find_bydns(), with an argument
750 containing the DNS resolver options. The host_find_byname() function now
751 sets these options at its start, just as host_find_bydns() does. The smtp
752 transport options dns_qualify_single and dns_search_parents are passed to
753 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
754 of host_find_byname() use the default settings of RES_DEFNAMES
755 (qualify_single) but not RES_DNSRCH (search_parents).
756
08955dd3
PH
757PH/17 Applied (a modified version of) Nico Erfurth's patch to make
758 spool_read_header() do less string testing, by means of a preliminary
759 switch on the second character of optional "-foo" lines. (This is
760 overdue, caused by the large number of possibilities that now exist.
761 Originally there were few.) While I was there, I also converted the
762 str(n)cmp tests so they don't re-test the leading "-" and the first
763 character, in the hope this might squeeze out yet more improvement.
764
1eccaa59
PH
765PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
766 flag allowing group syntax was set by the header_syntax check but not
767 turned off, possible causing trouble later; (2) The flag was not being
768 set at all for the header_verify test, causing "group"-style headers to
769 be rejected. I have now set it in this case, and also caused header_
770 verify to ignore an empty address taken from a group. While doing this, I
771 came across some other cases where the code for allowing group syntax
772 while scanning a header line wasn't quite right (mostly, not resetting
773 the flag correctly in the right place). These bugs could have caused
774 trouble for malformed header lines. I hope it is now all correct.
775
602e59e5
PH
776PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
777 with the "reply" argument non-NULL. The code, however (which originally
778 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
779 but it didn't always do it. This confused somebody who was copying the
780 code for some other use. I have removed all the tests.
781
411ef850
PH
782PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
783 feature that was used to support insecure browsers during the U.S. crypto
784 embargo. It requires special client support, and Exim is probably the
785 only MTA that supported it -- and would never use it because real RSA is
786 always available. This code has been removed, because it had the bad
787 effect of slowing Exim down by computing (never used) parameters for the
788 RSA_EXPORT functionality.
789
7befa435
PH
790PH/21 On the advice of Timo Sirainen, added a check to the dovecot
791 authenticator to fail if there's a tab character in the incoming data
792 (there should never be unless someone is messing about, as it's supposed
793 to be base64-encoded). Also added, on Timo's advice, the "secured" option
794 if the connection is using TLS or if the remote IP is the same as the
795 local IP, and the "valid-client-cert option" if a client certificate has
796 been verified.
797
48da4259 798PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
799 authenticators. This can be used for authorization after authentication
800 succeeds. (In the case of plaintext, it servers for both authentication
801 and authorization.)
802
48da4259
PH
803PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
804 if any retry times were supplied.
805
d1d5595c
PH
806PH/24 Exim crashed if verify=helo was activated during an incoming -bs
807 connection, where there is no client IP address to check. In this
808 situation, the verify now always succeeds.
809
0ef732d9
PH
810PH/25 Applied John Jetmore's -Mset patch.
811
328895cc
PH
812PH/26 Added -bem to be like -Mset, but loading a message from a file.
813
fd700877
PH
814PH/27 In a string expansion for a processed (not raw) header when multiple
815 headers of the same name were present, leading whitespace was being
816 removed from all of them, but trailing whitespace was being removed only
817 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
818 before concatenation. Completely empty headers in a concatenation (as
819 before) are ignored.
fd700877 820
8dce1a6f
PH
821PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
822 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
823
17af4a17
PH
824PH/29 [Removed. This was a change that I later backed out, and forgot to
825 correct the ChangeLog entry (that I had efficiently created) before
826 committing the later change.]
f6c332bd
PH
827
828PH/30 Exim was sometimes attempting to deliver messages that had suffered
829 address errors (4xx response to RCPT) over the same connection as other
830 messages routed to the same hosts. Such deliveries are always "forced",
831 so retry times are not inspected. This resulted in far too many retries
832 for the affected addresses. The effect occurred only when there were more
833 hosts than the hosts_max_try setting in the smtp transport when it had
834 the 4xx errors. Those hosts that it had tried were not added to the list
835 of hosts for which the message was waiting, so if all were tried, there
836 was no problem. Two fixes have been applied:
837
838 (i) If there are any address or message errors in an SMTP delivery, none
839 of the hosts (tried or untried) are now added to the list of hosts
840 for which the message is waiting, so the message should not be a
841 candidate for sending over the same connection that was used for a
842 successful delivery of some other message. This seems entirely
843 reasonable: after all the message is NOT "waiting for some host".
844 This is so "obvious" that I'm not sure why it wasn't done
845 previously. Hope I haven't missed anything, but it can't do any
846 harm, as the worst effect is to miss an optimization.
847
848 (ii) If, despite (i), such a delivery is accidentally attempted, the
849 routing retry time is respected, so at least it doesn't keep
850 hammering the server.
851
c1114884
PH
852PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
853 in ${readsocket because some servers need this prod.
854
7a0743eb
PH
855PH/32 Added some extra debug output when updating a wait-xxx database.
856
0d85fa3f
PH
857PH/33 The hint "could be header name not terminated by colon", which has been
858 given for certain expansion errors for a long time, was not being given
859 for the ${if def:h_colon_omitted{... case.
860
1bf43b78
PH
861PH/34 The spec says: "With one important exception, whenever a domain list is
862 being scanned, $domain contains the subject domain." There was at least
863 one case where this was not true.
864
520de300
PH
865PH/35 The error "getsockname() failed: connection reset by peer" was being
866 written to the panic log as well as the main log, but it isn't really
867 panic-worthy as it just means the connection died rather early on. I have
868 removed the panic log writing for the ECONNRESET error when getsockname()
869 fails.
870
48c7f9e2
PH
871PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
872 runs only) independently of the message's sender address. This meant
873 that, if the 4xx error was in fact related to the sender, a different
874 message to the same recipient with a different sender could confuse
875 things. In particualar, this can happen when sending to a greylisting
876 server, but other circumstances could also provoke similar problems.
877 I have changed the default so that the retry time for these errors is now
878 based a combination of the sender and recipient addresses. This change
879 can be overridden by setting address_retry_include_sender=false in the
880 smtp transport.
881
99ea1c86
PH
882PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
883 remote server are returned as part of bounce messages. This was not
884 happening for LMTP over a pipe (the lmtp transport), but now it is the
885 same for both kinds of LMTP.
886
a2042e78
PH
887PH/38 Despite being documented as not happening, Exim was rewriting addresses
888 in header lines that were in fact CNAMEs. This is no longer the case.
889
4fbcfc2e
PH
890PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
891 and queue runs started by the daemon processed all messages. This has
892 been fixed so that -R and -S can now usefully be given with -q<time>.
893
aa41d2de
PH
894PH/40 Import PCRE release 6.7 (fixes some bugs).
895
af561417
PH
896PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
897
3cc66b45
PH
898PH/42 Give an error if -q is specified more than once.
899
194cc0e4
PH
900PH/43 Renamed the variables $interface_address and $interface_port as
901 $received_ip_address and $received_port, to make it clear that these
902 values apply to message reception, and not to the outgoing interface when
903 a message is delivered. (The old names remain recognized, of course.)
904
a401ddaa
PH
905PH/44 There was no timeout on the connect() call when using a Unix domain
906 socket in the ${readsocket expansion. There now is.
907
4e88a19f
PH
908PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
909 be meaningful with "accept".
910
d7d7b289
SC
911SC/01 Eximstats V1.43
912 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
913
914SC/02 Eximstats V1.44
915 Use a glob alias rather than an array ref in the generated
916 parser. This improves both readability and performance.
917
918SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
919 Collect SpamAssassin and rejection statistics.
920 Don't display local sender or destination tables unless
921 there is data to show.
922 Added average volumes into the top table text output.
923
924SC/04 Eximstats V1.46
925 Collect data on the number of addresses (recipients)
926 as well as the number of messages.
927
928SC/05 Eximstats V1.47
929 Added 'Message too big' to the list of mail rejection
930 reasons (thanks to Marco Gaiarin).
931
932SC/06 Eximstats V1.48
933 Mainlog lines which have GMT offsets and are too short to
934 have a flag are now skipped.
935
936SC/07 Eximstats V1.49 (Alain Williams)
937 Added the -emptyok flag.
938
939SC/08 Eximstats V1.50
940 Fixes for obtaining the IP address from reject messages.
941
0ea2a468
JJ
942JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
943 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
944 whitesspace changes from 4.64-PH/27
945
946JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
947 match 4.64-PH/13
948
949JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
950 are found, allow negative numbers in numeric criteria)
951
952JJ/06 exipick.20061117.2, added new $message_body_missing variable
953
954JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
955 to match changes made in 4.64-PH/43
956
8a10f5a4
PH
957PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
958
30e18802
PH
959PH/47 Put in an explicit test for a DNS lookup of an address record where the
960 "domain" is actually an IP address, and force a failure. This locks out
961 those revolvers/nameservers that support "A-for-A" lookups, in
962 contravention of the specifications.
963
55728a4f
PH
964PH/48 When a host name was looked up from an IP address, and the subsequent
965 forward lookup of the name timed out, the host name was left in
966 $sender_host_name, contrary to the specification.
d7d7b289 967
d7837193
PH
968PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
969 restricted to single-key lookups, Exim was not diagnosing an error if
970 * or *@ was used with a query-style lookup.
971
87054a31
PH
972PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
973
ea2c01d2
MH
974MH/01 local_scan ABI version incremented to 1.1. It should have been updated
975 long ago, but noone interested enough thought of it. Let's just say that
976 the "1.1" means that there are some new functions that weren't there at
977 some point in the past.
978
e4fa6968
PH
979PH/51 Error processing for expansion failure of helo_data from an smtp
980 transport during callout processing was broken.
981
56f5d9bd
PH
982PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
983 tested/used via the -bh/-bhc/-bs options.
984
922e1c28
PH
985PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
986 bug, fixed in subsequent PCRE releases).
987
21eb6e72
PH
988PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
989 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
990
a0540757
PH
991PH/55 Check for a ridiculously long file name in exim_dbmbuild.
992
944e9e9c 993
478be7b0
SC
994Exim version 4.63
995-----------------
996
997SC/01 Use a glob alias rather than an array ref in eximstats generated
998 parser. This improves both readability and performance.
999
1000SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1001 Don't display local sender or destination tables in eximstats unless
1002 there is data to show.
1003 Added average volumes into the eximstats top table text output.
1004
1005SC/03 Collect data on the number of addresses (recipients) as well
1006 as the number of messages in eximstats.
1007
2b965a65
TF
1008TF/01 Correct an error in the documentation for the redirect router. Exim
1009 does (usually) call initgroups() when daemonizing.
478be7b0 1010
45b91596
PH
1011TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1012 with consistent privilege compared to when running as a daemon.
478be7b0 1013
c59f5781
TF
1014TF/03 Note in the spec that $authenticated_id is not set for local
1015 submissions from trusted users.
1016
90fc3069
TF
1017TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1018 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1019
6083aca0
TF
1020TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1021 by adding some example configuration directives to the default
1022 configuration file. A little bit of work is required to uncomment the
1023 directives and define how usernames and passwords are checked, but
1024 there is now a framework to start from.
1025
765b530f
PH
1026PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1027 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1028 without this. I don't know how relevant this is to other LDAP libraries.
1029
4e167a8c
PH
1030PH/02 Add the verb name to the "unknown ACL verb" error.
1031
4608d683
PH
1032PH/03 Magnus Holmgren's patch for filter_prepend_home.
1033
b8dc3e4a
PH
1034PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1035
5418e93b
PH
1036PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1037 directory not expanded when it should be if an expanded home directory
1038 was set for the address (which is overridden by the transport).
1039
b4a9bda2
PH
1040PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1041 libradius.
1042
45b91596
PH
1043PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1044 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1045 because it is too late at that time, and has no effect.
1046
5547e2c5
PH
1047PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1048 security issue with \' (bugzilla #107). I could not use the
1049 PQescapeStringConn() function, because it needs a PGconn value as one of
1050 its arguments.
1051
dbcef0ea
PH
1052PH/08 When testing addresses using -bt, indicate those final addresses that
1053 are duplicates that would not cause an additional delivery. At least one
1054 person was confused, thinking that -bt output corresponded to deliveries.
1055 (Suppressing duplicates isn't a good idea as you lose the information
1056 about possibly different redirections that led to the duplicates.)
1057
25257489
PH
1058PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1059 systems where poll() doesn't work, in particular OS X.
1060
c816d124
PH
1061PH/10 Added more information to debugging output for retry time not reached.
1062
a9ccd69a
PH
1063PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1064 operations in malware.c.
1065
75fa1910
PH
1066PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1067 signatures.
1068
a7d7aa58
PH
1069PH/13 If write_rejectlog was set false when logging was sent to syslog with
1070 syslog_duplication set false, log lines that would normally be written
1071 both the the main log and to the reject log were not written to syslog at
1072 all.
1073
42119b09
PH
1074PH/14 In the default configuration, change the use of "message" in ACL warn
1075 statements to "add_header".
1076
41609df5
PH
1077PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1078 not followed by a command (e.g. "seen endif").
1079
a5bd321b
PH
1080PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1081 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1082 latter.
1083
e85a7ad5 1084PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1085 so that it is now:
1086
e85a7ad5
PH
1087 ${if or { \
1088 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1089 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1090 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1091 }{no}{yes}}
1092
e85a7ad5
PH
1093 The Auto-Submitted: and various List- headers are standardised, whereas I
1094 don't think Precedence: ever was.
5dff5817 1095
d8fe1c03
PH
1096PH/18 Refactored debugging code in route_finduser() to show more information,
1097 in particular, the error code if getpwnam() issues one.
1098
16282d2b
PH
1099PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1100 This is apparently needed in addition to the PH/07 change above to avoid
1101 any possible encoding problems.
1102
35d40a98
PH
1103PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1104 but not after initializing Perl.
1105
034d99ab
PH
1106PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1107 output them only if debugging. By default they are written stderr,
1108 apparently, which is not desirable.
1109
6ec97b1b
PH
1110PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1111 queries.
1112
e22ca4ac
JJ
1113JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1114 --not options
1115
1116JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1117
33d73e3b
PH
1118PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1119 authenticated or an ident call has been made. Suppress the default
1120 values for $authenticated_id and $authenticated_sender (but permit -oMai
1121 and -oMas) when testing with -bh.
1122
9ecb03f3
PH
1123PH/24 Re-jigged the order of the tests in the default configuration so that the
1124 tests for valid domains and recipients precede the DNS black list and CSA
1125 tests, on the grounds that those ones are more expensive.
1126
084efe8d
PH
1127PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1128 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1129 This bug exists in every version of Exim that I still have, right back to
1130 0.12.
1131
366fc9f0
PH
1132PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1133 However, an attempt to turn on case-sensitivity in a regex key by
1134 including (?-i) didn't work because the subject string was already
1135 lowercased, and the effects were non-intuitive. It turns out that a
1136 one-line patch can be used to allow (?-i) to work as expected.
1137
c59f5781 1138
c887c79e
TF
1139Exim version 4.62
1140-----------------
1141
1142TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1143 other effects) broke the use of negated acl sub-conditions.
1144
1cce3af8
PH
1145PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1146 patch).
1147
afb3eaaf
PH
1148PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1149 "Deny" causes Exim to reject the incoming connection with a 554 error.
1150 Unfortunately, if there is a major crisis, such as a disk failure,
1151 tcp-wrappers gives "deny", whereas what one would like would be some
1152 kind of temporary error. A kludge has been added to help with this.
1153 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1154 554 error is used if errno is still zero or contains ENOENT (which occurs
1155 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1156 451 error is used.
1157
e173618b
PH
1158PH/03 Add -lutil to the default FreeBSD LIBS setting.
1159
dd16e114
PH
1160PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1161 errors. Otherwise a message that provokes a temporary error (when other
1162 messages do not) can cause a whole host to time out.
1163
f7fd3850
PH
1164PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1165 addresses were routed directly to files or pipes from a redirect router.
1166 File deliveries just didn't batch; pipe deliveries might have suffered
1167 odd errors.
1168
d87df92c
PH
1169PH/06 A failure to get a lock for a hints database would erroneously always say
1170 "Failed to get write lock", even when it was really a read lock.
1171
7e9f683d
PH
1172PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1173 of 0600. This has been changed to use the value of the lockfile_mode
1174 option (which defaults to 0600).
1175
bfad5236
PH
1176PH/08 Applied small patch from the Sieve maintainer.
1177
01c490df
PH
1178PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1179 folder from quota calculations, a direct delivery into this folder messed
1180 up the contents of the maildirsize file. This was because the regex was
1181 used only to exclude .Trash (or whatever) when the size of the mailbox
1182 was calculated. There was no check that a delivery was happening into an
1183 excluded directory. This bug has been fixed by ignoring all quota
1184 processing for deliveries into excluded directories.
1185
d6629cdc
PH
1186PH/10 Added the maildirfolder_create_regex option to appendfile.
1187
1cce3af8 1188
214e2000
PH
1189Exim version 4.61
1190-----------------
1191
1192PH/01 The code for finding all the local interface addresses on a FreeBSD
1193 system running IPv6 was broken. This may well have applied to all BSD
1194 systems, as well as to others that have similar system calls. The broken
1195 code found IPv4 interfaces correctly, but gave incorrect values for the
1196 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1197 that it would not match correctly against @[] and not recognize the IPv6
1198 addresses as local.
1199
f9daeae0
PH
1200PH/02 The ipliteral router was not recognizing addresses of the form user@
1201 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1202
7e66e54d
PH
1203PH/03 Added disable_ipv6.
1204
c8ea1597
PH
1205PH/04 Changed $reply_address to use the raw form of the headers instead of the
1206 decoded form, because it is most often used to construct To: headers
1207 lines in autoreplies, and the decoded form may well be syntactically
1208 invalid. However, $reply_address has leading white space removed, and all
1209 newlines turned into spaces so that the autoreply transport does not
1210 grumble.
1211
911f6fde
PH
1212PH/05 If group was specified without a user on a router, and no group or user
1213 was specified on a transport, the group from the router was ignored.
1214
47ca6d6c
PH
1215PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1216 for visible compile-time settings that can be used to change these
1217 numbers, for those that want even more. Backwards compatibility with old
1218 spool files has been maintained. However, going back to a previous Exim
1219 release will lost any variables that are in spool files.
1220
ed0e9820
PH
1221PH/07 Two small changes when running in the test harness: increase delay when
1222 passing a TCP/IP connection to a new process, in case the original
1223 process has to generate a bounce, and remove special handling of
1224 127.0.0.2 (sic), which is no longer necessary.
1225
eff37e47
PH
1226PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1227 be the same on different OS.
1228
1921d2ea
PH
1229PH/09 Moved a debug statement in filter processing to avoid a race problem when
1230 testing.
1231
b3f69ca8
JJ
1232JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1233 whether --show-vars was specified or not
1234
1235JJ/02 exipick: Added support for new ACL variable spool format introduced
1236 in 4.61-PH/06
1237
424a1c63
PH
1238PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1239 syntactically invalid From: or Reply-to: line, and a filter used this to
1240 generate an autoreply, and therefore failed to obtain an address for the
1241 autoreply, Exim could try to deliver to a non-existent relative file
1242 name, causing unrelated and misleading errors. What now happens is that
1243 it logs this as a hard delivery error, but does not attempt to create a
1244 bounce message.
1245
7a100415
PH
1246PH/11 The exinext utility has a -C option for testing purposes, but although
1247 the given file was scanned by exinext itself; it wasn't being passed on
1248 when Exim was called.
1249
19b9dc85
PH
1250PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1251 an end-of-file indication when reading a command response.
1252
309bd837
PH
1253PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1254 compiled. In many other places in Exim, IPv6 addresses are always
1255 recognized, so I have changed this. It also means that IPv4 domain
1256 literals of the form [IPV4:n.n.n.n] are now always recognized.
1257
59e82a2a
PH
1258PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1259 used if the router is not running as root, for example, when verifying at
1260 ACL time, or when using -bh. The debugging output from this situation was
1261 non-existent - all you got was a failure to exec. I have made two
1262 changes:
1263
1264 (a) Failures to set uid/gid, the current directory, or a process leader
1265 in a subprocess such as that created by queryprogram now generate
1266 suitable debugging ouput when -d is set.
1267
1268 (b) The queryprogram router detects when it is not running as root,
1269 outputs suitable debugging information if -d is set, and then runs
1270 the subprocess without attempting to change uid/gid.
1271
9edc04ce
PH
1272PH/15 Minor change to Makefile for building test_host (undocumented testing
1273 feature).
1274
1349e1e5
PH
1275PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1276 additional section of a DNS packet that returns MX or SRV records.
1277 Instead, it always explicitly searches for A/AAAA records. This avoids
1278 major problems that occur when a DNS server includes only records of one
1279 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1280 fixed another bug: if SRV records were looked up and the corresponding
1281 address records were *not* found in the additional section, the port
1282 values from the SRV records were lost.
1283
ea49d0e1
PH
1284PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1285 using the correct key (the original address) when searching the retry
1286 rules in order to find which one to use for generating the retry hint.
1287
064a94c9
PH
1288PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1289 adding the default one. Similarly, if it contains a Reply-To: header, the
1290 errors_reply_to option, if set, is not used.
1291
727071f8
PH
1292PH/19 When calculating a retry time, Exim used to measure the "time since
1293 failure" by looking at the "first failed" field in the retry record. Now
1294 it does not use this if it is later than than the arrival time of the
1295 message. Instead it uses the arrival time. This makes for better
1296 behaviour in cases where some deliveries succeed, thus re-setting the
1297 "first failed" field. An example is a quota failure for a huge message
1298 when small messages continue to be delivered. Without this change, the
1299 "time since failure" will always be short, possible causing more frequent
1300 delivery attempts for the huge message than are intended.
dd16e114 1301 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1302
f78eb7c6
PH
1303PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1304 $1, $2, $3) because the numerical variables can be reset during some
1305 expansion items (e.g. "match"), thereby losing the authentication data.
1306
21c28500
PH
1307PH/21 Make -bV show the size of off_t variables so that the test suite can
1308 decide whether to run tests for quotas > 2G.
1309
1310PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1311 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1312 filecount value is greater than 2G or if a quota value is greater than 2G
1313 on a system where the size of off_t is not greater than 4, a panic error
1314 is given.
1315
1688f43b
PH
1316PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1317 never match. The debug and -bh output now contains an explicit error
1318 message indicating a malformed IPv4 address or mask.
1319
1320PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1321 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1322 PH/23 above applies.
1323
9675b384
PH
1324PH/25 Do not write to syslog when running in the test harness. The only
1325 occasion when this arises is a failure to open the main or panic logs
1326 (for which there is an explicit test).
1327
6a3f1455
PH
1328PH/26 Added the /no_tell option to "control=freeze".
1329
dac79d3e
PH
1330PH/27 If a host name lookup failed very early in a connection, for example, if
1331 the IP address matched host_lookup and the reverse lookup yielded a name
1332 that did not have a forward lookup, an error message of the form "no IP
1333 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1334 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1335
5977a0b3
PH
1336PH/28 An enabling patch from MH: add new function child_open_exim2() which
1337 allows the sender and the authenticated sender to be set when
1338 submitting a message from within Exim. Since child_open_exim() is
1339 documented for local_scan(), the new function should be too.
1340
c91535f3
PH
1341PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1342 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1343 results in an empty string is now treated as unset.
1344
0d46a8c8
PH
1345PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1346
278c6e6c
PH
1347PH/31 Added sender_verify_fail logging option.
1348
2cbb4081
PH
1349PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1350 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1351 tidied the source and removed it altogether.
1352
3eef829e
PH
1353PH/33 When a queue run was abandoned because the load average was too high, a
1354 log line was always written; now it is written only if the queue_run log
1355 selector is set. In addition, the log line for abandonment now contains
1356 information about the queue run such as the pid. This is always present
1357 in "start" and "stop" lines but was omitted from the "abandon" line.
1358
1ab95fa6
PH
1359PH/34 Omit spaces between a header name and the colon in the error message that
1360 is given when verify = headers_syntax fails (if there are lots of them,
1361 the message gets confusing).
1362
230205fc
PH
1363PH/35 Change the default for dns_check_names_pattern to allow slashes within
1364 names, as there are now some PTR records that contain slashes. This check
1365 is only to protect against broken name servers that fall over on strange
1366 characters, so the fact that it applies to all lookups doesn't matter.
1367
75e0e026
PH
1368PH/36 Now that the new test suite is complete, we can remove some of the
1369 special code in Exim that was needed for the old test suite. For example,
1370 sorting DNS records because real resolvers return them in an arbitrary
1371 order. The new test suite's fake resolver always returns records in the
1372 same order.
1373
1374PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1375 bounces) except when queue_only is set, to avoid logging races between
1376 the different processes.
1377
145396a6
PH
1378PH/38 Panic-die if .include specifies a non-absolute path.
1379
3cd34f13
PH
1380PH/39 A tweak to the "H" retry rule from its user.
1381
11121d3d
JJ
1382JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1383 a label. They prevented compilation on older perls.
1384
1385JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1386 a warning to be raised on newish perls.
1387
1388JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1389 on queue. Changes to match documented behaviour of showing count of
1390 messages matching specified criteria.
1391
8def5aaf
PH
1392PH/40 Changed the default ident timeout from 30s to 5s.
1393
929ba01c
PH
1394PH/41 Added support for the use of login_cap features, on those BSD systems
1395 that have them, for controlling the resources used by pipe deliveries.
1396
2632889e
PH
1397PH/42 The content-scanning code uses fopen() to create files in which to put
1398 message data. Previously it was not paying any attention to the mode of
1399 the files. Exim runs with umask(0) because the rest of the code creates
1400 files with open(), and sets the required mode explicitly. Thus, these
1401 files were ending up world-writeable. This was not a big issue, because,
1402 being within the spool directory, they were not world-accessible. I have
1403 created a function called modefopen, which takes an additional mode
1404 argument. It sets umask(777), creates the file, chmods it to the required
1405 mode, then resets the umask. All the relevant calls to fopen() in the
1406 content scanning code have been changed to use this function.
1407
944a9c55
PH
1408PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1409 to 24 hours. This avoids potential overflow problems when processing G
1410 and H retry rules. I suspect nobody ever tinkers with this value.
1411
4a23603b
PH
1412PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1413
4730f942
PH
1414PH/45 When the plaintext authenticator is running as a client, the server's
1415 challenges are checked to ensure they are valid base64 strings. By
1416 default, the authentication attempt is cancelled if an invalid string is
1417 received. Setting client_ignore_invalid_base64 true ignores these errors.
1418 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1419 they are received. Thus, the responses can be made to depend on the
1420 challenges. If an invalid string is ignored, an empty string is placed in
1421 the variable.
1422
30dba1e6
PH
1423PH/46 Messages that are created by the autoreply transport now contains a
1424 References: header, in accordance with RFCs 2822 and 3834.
1425
382afc6b
PH
1426PH/47 Added authenticated_sender_force to the smtp transport.
1427
a86229cf
PH
1428PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1429
50c99ba6
PH
1430PH/49 Installed latest patch from the Sieve maintainer.
1431
d35e429d
PH
1432PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1433 was also set, the appendfile transport was unnecessarily scanning a
1434 directory of message files (e.g. for maildir delivery) to find the count
1435 of files (along with the size), even though it did not need this
1436 information. It now does the scan only if it needs to find either the
1437 size of the count of files.
1438
f90d018c
PH
1439PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1440
75def545
PH
1441PH/52 Two bugs concerned with error handling when the smtp transport is
1442 used in LMTP mode:
1443
1444 (i) Exim was not creating retry information for temporary errors given
1445 for individual recipients after the DATA command when the smtp transport
1446 was used in LMTP mode. This meant that they could be retried too
1447 frequently, and not timed out correctly.
1448
1449 (ii) Exim was setting the flag that allows error details to be returned
1450 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1451 recipients that were returned after the DATA command.
1452
1453PH/53 This is related to PH/52, but is more general: for any failing address,
1454 when detailed error information was permitted to be returned to the
1455 sender, but the error was temporary, then after the final timeout, only
1456 "retry timeout exceeded" was returned. Now it returns the full error as
1457 well as "retry timeout exceeded".
1458
c46782ef
PH
1459PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1460 do this, and (what is worse) MTAs that accept it.
1461
71fafd95
PH
1462PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1463 will now be deprecated.
1464
2c5db4fd
PH
1465PH/56 New os.c-cygwin from the Cygwin maintainer.
1466
9cf6b11a
JJ
1467JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1468 formats (previously only available in exim formats via -bpr, -bpru,
1469 and -bpra. Now also available in native and exiqgrep formats)
1470
1471JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1472 with very large, slow to parse queues
1473
1474JJ/08 exipick: added ! as generic prefix to negate any criteria format
1475
1476JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1477
898d150f
PH
1478PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1479 responses to authentication challenges, though it was showing the
1480 challenges; (ii) I've removed the CR characters from the debug output for
1481 SMTP output lines.
1482
46218253
PH
1483PH/58 Allow for the insertion of a newline as well as a space when a string
1484 is turned into more than one encoded-word during RFC 2047 encoding. The
1485 Sieve code now uses this.
1486
e97957bc
PH
1487PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1488 data_4xx, lost_connection, tls_required.
1489
81e509d7
PH
1490PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1491 message was being sent as an SMTP response.
1492
3d240ff7
PH
1493PH/61 Add -l and -k options to exicyclog.
1494
b37c4101
PH
1495PH/62 When verifying, if an address was redirected to one new address, so that
1496 verification continued, and the new address failed or deferred after
1497 having set something in $address_data, the value of $address_data was not
1498 passed back to the ACL. This was different to the case when no
1499 redirection occurred. The value is now passed back in both cases.
1500
79378e0f
PH
1501PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1502 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1503 use login_cap.h, so on its own it isn't the distinguishing feature. The
1504 new name refers directly to the setclassresources() function.
1505
e49c7bb4
PH
1506PH/65 Added configuration files for NetBSD3.
1507
d114ec46
PH
1508PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1509
f3d7df6c
PH
1510PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1511 is preferred over IPv4.
1512
715ab376
PH
1513PH/68 The bounce_return_message and bounce_return_body options were not being
1514 honoured for bounces generated during the reception of non-SMTP messages.
1515 In particular, this applied to messages rejected by the ACL. This bug has
1516 been fixed. However, if bounce_return_message is true and bounce_return_
1517 body is false, the headers that are returned for a non-SMTP message
1518 include only those that have been read before the error was detected.
1519 (In the case of an ACL rejection, they have all been read.)
1520
6b31b150
PH
1521PH/69 The HTML version of the specification is now built in a directory called
1522 spec_html instead of spec.html, because the latter looks like a path with
1523 a MIME-type, and this confuses some software.
1524
1525PH/70 Catch two compiler warnings in sieve.c.
1526
d515a917
PH
1527PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1528 function verify_get_ident() calls ip_connect() to connect a socket, but
1529 if the "connect()" function timed out, ip_connect() used to close the
1530 socket. However, verify_get_ident() also closes the socket later, and in
1531 between Exim writes to the log, which may get opened at this point. When
1532 the socket was closed in ip_connect(), the log could get the same file
1533 descriptor number as the socket. This naturally causes chaos. The fix is
1534 not to close the socket in ip_connect(); the socket should be closed by
1535 the function that creates it. There was only one place in the code where
1536 this was missing, in the iplookup router, which I don't think anybody now
1537 uses, but I've fixed it anyway.
1538
9b8fadde
PH
1539PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1540 well as to direct DNS lookups. Otherwise the handling of names in host
1541 lists is inconsistent and therefore confusing.
1542
214e2000 1543
5de37277
PH
1544Exim version 4.60
1545-----------------
1546
cc38ddbf
PH
1547PH/01 Two changes to the default runtime configuration:
1548
1549 (1) Move the checks for relay_from_hosts and authenticated clients from
1550 after to before the (commented out) DNS black list checks.
1551
1552 (2) Add control=submission to the relay_from_hosts and authenticated
1553 clients checks, on the grounds that messages accepted by these
1554 statements are most likely to be submissions.
5de37277 1555
72fdd6ae
PH
1556PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1557
1558 (1) Generate an error if the third argument for the ${prvs expansion is
1559 not a single digit.
1560
1561 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1562 string.
1563
1564 (3) Reset the variables that are obtained from the first argument of
1565 ${prvscheck and used in the second argument before leaving the code,
1566 because their memory is reclaimed, so using them afterwards may do
1567 silly things.
1568
1569 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1570 one (it's much easier than Tom thought :-).
1571
1572 (5) Because of (4), we can now allow for the use of $prvscheck_result
1573 inside the third argument.
cb9328de 1574
cb741023
PH
1575PH/03 For some reason, the default setting of PATH when running a command from
1576 a pipe transport was just "/usr/bin". I have changed it to
1577 "/bin:/usr/bin".
1578
f174f16e
PH
1579PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1580 anything to be listed in the output from -bV.
b2f5a032 1581
c25242d7
PH
1582PH/05 When a filter generated an autoreply, the entire To: header line was
1583 quoted in the delivery log line, like this:
1584
1585 => >A.N.Other <ano@some.domain> <original@ddress> ...
1586
1587 This has been changed so that it extracts the operative address. There
1588 may be more than one such address. If so, they are comma-separated, like
1589 this:
1590
1591 => >ano@some.domain,ona@other.domain <original@ddress> ...
1592
82c19f95
PH
1593PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1594 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1595 not being looked up in the rDNS to get a host name, Exim was showing the
1596 IP address twice in Received: lines, even though the IP addresses were
1597 identical. For example:
1598
1599 Received: from [1.2.3.4] (helo=[1.2.3.4])
1600
1601 However, if the real host name was known, it was omitting the HELO data
1602 if it matched the actual IP address. This has been tidied up so that it
1603 doesn't show the same IP address twice.
1604
d7ffbc12
PH
1605PH/07 When both +timestamp and +memory debugging was on, the value given by
1606 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1607 called by the debug printing, thereby overwriting the timestamp buffer.
1608 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1609
9f526266
PH
1610PH/08 When the original message was included in an autoreply transport, it
1611 always said "this is a copy of the message, including all the headers",
1612 even if body_only or headers_only was set. It now gives an appropriate
1613 message.
1614
87fcc8b9
PH
1615PH/09 Applied a patch from the Sieve maintainer which:
1616
1617 o fixes some comments
1618 o adds the (disabled) notify extension core
1619 o adds some debug output for the result of if/elsif tests
1620 o points to the current vacation draft in the documentation
1621 and documents the missing references header update
1622
1623 and most important:
1624
1625 o fixes a bug in processing the envelope test (when testing
1626 multiple envelope elements, the last element determinted the
1627 result)
1628
456682f5
PH
1629PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1630 Electronic Mail") by including:
1631
1632 Auto-submitted: auto-generated
1633
1634 in the messages that it generates (bounce messages and others, such as
1635 warnings). In the case of bounce messages for non-SMTP mesages, there was
1636 also a typo: it was using "Auto_submitted" (underscore instead of
1637 hyphen). Since every message generated by Exim is necessarily in response
1638 to another message, thes have all been changed to:
1639
1640 Auto-Submitted: auto-replied
1641
1642 in accordance with these statements in the RFC:
1643
1644 The auto-replied keyword:
1645
1646 - SHOULD be used on messages sent in direct response to another
1647 message by an automatic process,
1648
1649 - MUST NOT be used on manually-generated messages,
1650
1651 - MAY be used on Delivery Status Notifications (DSNs) and Message
1652 Disposition Notifications (MDNs),
1653
1654 - MUST NOT be used on messages generated by automatic or periodic
1655 processes, except for messages which are automatic responses to
1656 other messages.
1657
3e46c1aa
PH
1658PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1659 to the default Received: header definition.
456682f5 1660
49826d12
PH
1661PH/12 Added log selector acl_warn_skipped (default on).
1662
eba0c039
PH
1663PH/13 After a successful wildlsearch lookup, discard the values of numeric
1664 variables because (a) they are in the wrong storage pool and (b) even if
1665 they were copied, it wouldn't work properly because of the caching.
1666
a0d6ba8a
PH
1667PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1668 checking when decoding. Apparently there are clients that generate
1669 overlong encoded strings. Why am I not surprised?
1670
f0917727
PH
1671PH/15 If the first argument of "${if match_address" was not empty, but did not
1672 contain an "@" character, Exim crashed. Now it writes a panic log message
1673 and treats the condition as false.
1674
096fee00
PH
1675PH/16 In autoreply, treat an empty string for "once" the same as unset.
1676
024bd3c2
PH
1677PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1678 extension "envelope-auth". The code is finished and in agreement with
1679 other implementations, but there is no documentation so far and in fact,
1680 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1681 not changing the active code.
1682
1683 Print executed "if" and "elsif" statements when debugging is used. This
1684 helps a great deal to understand what a filter does.
1685
1686 Document more things not specified clearly in RFC3028. I had all this
1687 sorted out, when out of a sudden new issues came to my mind. Oops."
1688
df199fec
PH
1689PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1690 (Bugzilla #53).
1691
d27f1df3
PH
1692PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1693 canonical form (as documented). However, after a host name lookup from
1694 the IP address, check_host() was doing a simple string comparison with
1695 addresses acquired from the DNS when checking that the found name did
1696 have the original IP as one of its addresses. Since any found IPv6
1697 addresses are likely to be in abbreviated form, the comparison could
1698 fail. Luckily, there already exists a function for doing the comparison
1699 by converting both addresses to binary, so now that is used instead of
1700 the text comparison.
1701
96776534
PH
1702PH/20 There was another similar case to PH/19, when a complete host name was
1703 given in a host list; looking up its IP address could give an abbreviated
1704 form, whereas the current host's name might or might not be abbreviated.
1705 The same fix has been applied.
1706
5de37277 1707
9a799bc0
PH
1708Exim version 4.54
1709-----------------
1710
1711PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1712 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1713 It now does.
1714
99a4b039
PH
1715PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1716 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1717
1718PH/03 Typo: missing ".o" in src/pcre/Makefile.
1719
4b233853
PH
1720PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1721 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1722 Also, for "Auto-Submitted", treat anything other than "no" as
1723 non-personal, in accordance with RFC 3834. (Previously it treated
1724 anything starting "auto-" as non-personal.)
1725
8857ccfd
PH
1726TF/01 The control=submission/name=... option had a problem with syntax
1727 errors if the name included a slash character. The /name= option
1728 now slurps the rest of the string, so it can include any characters
1729 but it must come last in the list of options (after /sender_retain
1730 or /domain=).
1731
433a2980
PH
1732PH/05 Some modifications to the interface to the fake nameserver for the new
1733 testing suite.
1734
3e46c1aa 1735
9a799bc0 1736
e3a311ba
TK
1737Exim version 4.53
1738-----------------
1739
1740TK/01 Added the "success_on_redirect" address verification option. See
1741 NewStuff for rationale and an example.
1742
13b685f9
PH
1743PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1744
395ff96d
PH
1745PH/02 Patch to exigrep to allow it to work on syslog lines.
1746
5b68f6e4
PH
1747PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1748 fread() to skip over the body file's header line, because in Cygwin the
1749 header line is locked and is inaccessible.
1750
1ab52c69
PH
1751PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1752 co-exist for some time) to make it clear that it is the Exim ID that is
1753 referenced, not the Message-ID: header line.
1754
b07e6aa3
PH
1755PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1756 string_format() function, because snprintf() does not exist on all
1757 operating systems.
1758
254e032f
PH
1759PH/06 The use of forbid_filter_existstest now also locks out the use of the
1760 ${stat: expansion item.
1761
3af76a81
PH
1762PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1763 protocol synchronization error", to keep the pedants happy.
1764
2548ba04
PH
1765PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1766 well as for IRIX systems, when gcc is being used. See the host.c source
1767 file for comments.
1768
b6c6011d
PH
1769PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1770
cf39cf57
PH
1771PH/10 Named domain lists were not working if used in a queue_smtp_domains
1772 setting.
1773
f1513293
PH
1774PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1775 transport and to the smtp transport in LMTP mode.
1776
727549a4
PH
1777TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1778
af46795e
PH
1779PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1780 run a filter in a subprocess. This could lead to confusion in subsequent
1781 lookups in the parent process. There should also be a search_tidyup() at
1782 the end of the subprocess.
1783
d7b47fd0
PH
1784PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1785 only if the host matched helo_try_verify_hosts, which caused the
1786 verification to occur when the EHLO/HELO command was issued. The ACL just
1787 tested the remembered result. Now, if a previous verification attempt has
1788 not happened, "verify = helo" does it there and then.
1789
ee744174
JJ
1790JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1791
b582ab87
PH
1792TK/03 Fix log output including CR from clamd.
1793
41a13e0a
PH
1794PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1795 exist provoked a memory error which could cause a segfault.
1796
f625cc5a
PH
1797PH/15 Installed PCRE 6.2
1798
1799PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1800
21f7af35
PH
1801PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1802 of the problem. Specifically, suggested +O2 rather than +O1 for the
1803 HP-UX compiler.
1804
31480e42
PH
1805PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1806
2d280592
PH
1807PH/20 If a delivery was routed to a non-standard port by means of an SRV
1808 record, the port was not correctly logged when the outgoing_port log
1809 selector was set (it logged the transort's default port).
1810
7cd1141b
PH
1811PH/21 Added support for host-specific ports to manualroute, queryprogram,
1812 fallback_hosts, and "hosts" in the smtp transport.
1813
1814PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1815 host errors such as "Connection refused".
1816
750af86e
PH
1817PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1818 authentication with radiusclient 0.4.9:
1819
1820 - Error returned from rc_read_config was caught wrongly
1821 - Username/password not passed on to radius server due to wrong length.
1822
1823 The presumption is that some radiusclient API changes for 4.51/PH/17
1824 were not taken care of correctly. The code is still untested by me (my
1825 Linux distribution still has 0.3.2 of radiusclient), but it was
1826 contributed by a Radius user.
1827
1828PH/24 When doing a callout, the value of $domain wasn't set correctly when
1829 expanding the "port" option of the smtp transport.
1830
4304270b
TK
1831TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1832 while reading a MIME header. Thanks to Tom Hughes for a patch.
1833
750af86e
PH
1834PH/24 Include config.h inside local_scan.h so that configuration settings are
1835 available.
1836
64ffc24f
PH
1837PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1838 that in an ACL for RCPT (for example), you can examine exactly what was
1839 received.
1840
5dd9625b
PH
1841PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1842 commands, but it was not correctly comparing the address with the actual
1843 client host address. Thus, it would show the EHLO address in Received:
1844 header lines when this was not necessary.
1845
5591031b
PH
1846PH/27 Added the % operator to ${eval:}.
1847
ba18e66a
PH
1848PH/28 Exim tries to create and chdir to its spool directory when it starts;
1849 it should be ignoring failures (because with -C, for example, it has lost
1850 privilege). It wasn't ignoring creation failures other than "already
1851 exists".
1852
9cec981f
PH
1853PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1854 -bV or -d is used.
1855
aa2b5c79
PH
1856PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1857 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1858 too many continuations, the temporary file was not being removed, and the
1859 return code was incorrect.
aa2b5c79 1860
48a53b7f
PH
1861PH/31 Missing "BOOL" in function definition in filtertest.c.
1862
1c59d63b
PH
1863PH/32 Applied Sieve patches from the maintainer.
1864
671012da
TK
1865TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1866
1509d3a8
PH
1867PH/33 Added "verify = not_blind".
1868
1869PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1870 Local/Makefile (with some defaults set). These are used in built scripts
1871 such as exicyclog, but they have never been used in the exim_install
1872 script (though there are many overriding facilities there). I have
1873 arranged that the exim_install script now takes note of these two
1874 settings.
1875
1876PH/35 Installed configuration files for Dragonfly.
1877
2fe1a124
PH
1878PH/36 When a locally submitted message by a trusted user did not contain a
1879 From: header, and the sender address was obtained from -f or from an SMTP
1880 MAIL command, and the trusted user did not use -F to supply a sender
1881 name, $originator_name was incorrectly used when constructing a From:
1882 header. Furthermore, $originator_name was used for submission mode
1883 messages from external hosts without From: headers in a similar way,
1884 which is clearly wrong.
1885
8800895a
PH
1886PH/37 Added control=suppress_local_fixups.
1887
ccfdb010
PH
1888PH/38 When log_selector = +received_sender was set, and the addition of the
1889 sender made the log line's construction buffer exactly full, or one byte
1890 less than full, an overflow happened when the terminating "\n" was
1891 subsequently added.
1892
1130bfb0
PH
1893PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1894 when the result of a list match is failure because a DNS lookup failed.
1895
ebcb507f
PH
1896PH/40 RM_COMMAND is now used in the building process.
1897
c35e155c
PH
1898PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1899 the "build-* directories that it finds.
1900
95d1f782
PH
1901PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1902 address in a domain literal was a prefix of an interface address.
1903
fd6de02e
PH
1904PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1905 when verifying a sender address, unless rewrite_headers is false.
1906
58de37c5
PH
1907PH/44 Wrote a long comment about why errors_to addresses are verified as
1908 recipients, not senders.
1909
261cf466
TF
1910TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1911 the ratelimit ACL was added.
1912
3ee512ff
PH
1913PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1914
e08c430f
PH
1915PH/46 Added extra information about PostgreSQL errors to the error string.
1916
bef5a11f
PH
1917PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1918 avoiding the need to install special zones in a real server. This is
1919 backwards compatible; if it can't find the fake resolver, it drops back.
1920 Thus, both old and new test suites can be run.
1921
7546de58
TF
1922TF/02 Added util/ratelimit.pl
1923
e5d5a95f
TF
1924TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1925 clock is set back in time.
1926
2e88a017
TF
1927TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1928 Candler <B.Candler@pobox.com>.
1929
a5f65aa4
TF
1930TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1931 OK for addresses that are the result of redirections.
1932
e7726cbf
PH
1933PH/48 A number of further additions for the benefit of the new test suite,
1934 including a fake gethostbyname() that interfaces to the fake DNS resolver
1935 (see PH/47 above).
1936
a7fdad5b
TF
1937TF/06 The fix for widen_domains has also been applied to qualify_single and
1938 search_parents which are the other dnslookup options that can cause
1939 header rewrites.
1940
6af56900
PH
1941PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1942 type ("H").
1943
0925ede6
PH
1944PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1945
66afa403
TF
1946TF/07 Exim produced the error message "an SRV record indicated no SMTP
1947 service" if it encountered an MX record with an empty target hostname.
1948 The message is now "an MX or SRV record indicated no SMTP service".
1949
0154e85a
TF
1950TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1951 if the DNS of the sending site is misconfigured. This is quite a
1952 common situation. This change restores the behaviour of treating a
1953 helo verification defer as a failure.
1954
16f12c76
PH
1955PH/51 If self=fail was set on a router, the bounce message did not include the
1956 actual error message.
1957
bbe902f0 1958
e5a9dba6
PH
1959Exim version 4.52
1960-----------------
1961
1962TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1963
22c3b60b
PH
1964PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1965 command itself ended in error, the underlying message about the transport
1966 filter timeout was being overwritten with the pipe command error. Now the
1967 underlying error message should be appended to the second error message.
1968
06a9b4b5
PH
1969TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1970
c1ac6996
PH
1971PH/02 Reduce the amount of output that "make" produces by default. Full output
1972 can still be requested.
1973
9c7a242c
PH
1974PH/03 The warning log line about a condition test deferring for a "warn" verb
1975 was being output only once per connection, rather than after each
1976 occurrence (because it was using the same function as for successful
1977 "warn" verbs). This seems wrong, so I have changed it.
1978
87ba3f5f
PH
1979TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1980 it should not have, which might have caused a crash in the right
1981 circumstances, but probably never did.
1982
1983PH/04 Installed a modified version of Tony Finch's patch to make submission
1984 mode fix the return path as well as the Sender: header line, and to
1985 add a /name= option so that you can make the user's friendly name appear
1986 in the header line.
1987
29aba418
TF
1988TF/03 Added the control = fakedefer ACL modifier.
1989
fe0dab11
TF
1990TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1991 Mark Lowes for thorough testing.
870f6ba8 1992
11d337a4
TK
1993TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1994
1995TK/03 Merged latest SRS patch from Miles Wilton.
1996
415c8f3b
PH
1997PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1998 with the definition in sysexits.h (which is #included earlier).
1999 Fortunately, Exim does not actually use EX_OK. The code used to try to
2000 preserve the sysexits.h value, by assumimg that macro definitions were
2001 scanned for macro replacements. I have been disabused of this notion,
2002 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2003
958541e9
PH
2004PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2005 in the smtp transport. When a block could not be written in a single
2006 write() function, the timeout was being re-applied to each part-write.
2007 This seems wrong - if the receiver was accepting one byte at a time it
2008 would take for ever. The timeout is now adjusted when this happens. It
2009 doesn't have to be particularly precise.
2010
c206415f
TK
2011TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2012 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2013
2a4be8f9
PH
2014PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2015 without a domain if the check to <postmaster@domain> fails.
2016
1cba11c5
SC
2017SC/01 Eximstats: added -xls and the ability to specify output files
2018 (patch written by Frank Heydlauf).
2019
2020SC/02 Eximstats: use FileHandles for outputing results.
2021
2022SC/03 Eximstats: allow any combination of xls, txt, and html output.
2023
2024SC/04 Eximstats: fixed display of large numbers with -nvr option
2025
2026SC/05 Eximstats: fixed merging of reports with empty tables.
2027
2028SC/06 Eximstats: added the -include_original_destination flag
2029
2030SC/07 Eximstats: removed tabs and trailing whitespace.
2031
1005d00e
TK
2032TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2033
2034TK/06 MBOX spool code: Add real "From " MBOX separator line
2035 so the .eml file is really in mbox format (even though
2036 most programs do not really care). Patch from Alex Miller.
2037
2038TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2039 The latter is generated from $received_to and is only set if the
2040 message has one envelope recipient. SA can use these headers,
2041 obviously out-of-the-box. Patch from Alex Miller.
2042
9b4768fa
PH
2043PH/08 The ${def test on a variable was returning false if the variable's
2044 value was "0", contrary to what the specification has always said!
2045 The result should be true unless the variable is empty.
2046
2047PH/09 The syntax error of a character other than { following "${if
2048 def:variable_name" (after optional whitespace) was not being diagnosed.
2049 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2050 accidental colon was present, for example, could give incorrect results.
2051
0d7eb84a
PH
2052PH/10 Tidied the code in a number of places where the st_size field of a stat()
2053 result is used (not including appendfile, where other changes are about
2054 to be made).
2055
2056PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2057 This involved changing a lot of size variables from int to off_t. It
2058 should work with maildirs and everything.
2059
40727bee
TK
2060TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2061 spamd dying while we are connected to it.
2062
554d2369
TF
2063TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2064 <jgh@wizmail.org>
2065
1f922db1
PH
2066PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2067 function for BDB 4.3.
2068
ef213c3b
PH
2069PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2070
8ac170f3
PH
2071PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2072 the sources for PCRE have been re-arranged and more files are now
2073 involved.
2074
b1c749bb
PH
2075PH/15 The code I had for printing potentially long long variables in PH/11
2076 above was not the best (it lost precision). The length of off_t variables
2077 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2078 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2079 to be "long long int" or "long int". This is needed for the internal
2080 formatting function string_vformat().
b1c749bb 2081
4aac9b49
PH
2082PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2083 the configuration file to be ":syslog", then the script "guesses" where
2084 the logs files are, rather than using the compiled in default. In our
2085 case the guess is not the same as the compiled default, so the script
2086 suddenly stopped working when I started to use syslog. The patch checks
2087 to see if log_file_path is "". If so, it attempts to read it from exim
2088 with no configuration file to get the compiled in version, before it
2089 falls back to the previous guessing code."
2090
294520c8
TK
2091TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2092 implementing BATV in an Exim configuration. See NewStuff for the gory
2093 details.
2094
5bd022fe
PH
2095PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2096 Makefile that are specific to HP-UX.
2097
90e9ce59
PH
2098PH/18 If the "use_postmaster" option was set for a recipient callout together
2099 with the "random" option, the postmaster address was used as the MAIL
2100 FROM address for the random test, but not for the subsequent recipient
2101 test. It is now used for both.
2102
5ea81592
PH
2103PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2104 patch removes a few documentation additions to RFC 3028, because the
2105 latest draft now contains them. It adds the new en;ascii-case comparator
2106 and a new error check for 8bit text in MIME parts. Comparator and
2107 require names are now matched exactly. I enabled the subaddress
2108 extension, but it is not well tested yet (read: it works for me)."
2109
c6c2dc1d
PH
2110PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2111 rework some of the code of TK/09 above to avoid the hardwired use of
2112 "%lld" and "long long". Replaced the call to snprintf() with a call to
2113 string_vformat().
2114
fffffe4c
PH
2115PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2116 records point to non-existent hosts", "retry timeout exceeded", and
2117 "retry time not reached for any host after a long failure period".
ca02eafb 2118
9a26b6b2
PH
2119PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2120 experimental DomainKeys support:
2121
2122 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2123 (2) On an error such as an illegally used "control", the wrong name for
2124 the control was given.
2125
2126 These problems did NOT occur unless DomainKeys support was compiled.
2127
4aee0225
PH
2128PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2129
32d668a5
PH
2130PH/24 Added ${if match_ip condition.
2131
8187c3f3
PH
2132PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2133 databases so that it will be absolutely obvious if a crash occurs in the
2134 DB library. This is a regular occurrence (often caused by mis-matched
2135 db.h files).
2136
ff790e47 2137PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2138 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2139 picked up on a user's system that detects such things. There doesn't seem
2140 to be a gcc warning option for this - only an attribute that has to be
2141 put on the function's prototype. It seems that in Fedora Core 4 they have
2142 set this on a number of new functions. No doubt there will be more in due
2143 course.
ff790e47 2144
5417f6d1
PH
2145PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2146 specify a transport. However, if an address that was verified by such a
2147 router was the subject of a callout, Exim crashed because it tried to
2148 read the rcpt_include_affixes from the non-existent transport. Now it
2149 just assumes that the setting of that option is false. This bug was
2150 introduced by 4.51/PH/31.
2151
59cf8544
PH
2152PH/28 Changed -d+all to exclude +memory, because that information is very
2153 rarely of interest, but it makes the output a lot bigger. People tend to
2154 do -d+all out of habit.
2155
e7ad8a65
PH
2156PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2157 code in os-type was giving problems when libc.so lives in lib64, like on
2158 x86_64 Fedora Core.
2159
ade42478
PH
2160PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2161 aren't the modern standard, and it seems that some systems' include files
2162 don't always have them. Exim was already checking for some of the newer
2163 ones like T_AAAA, and defining it itself. I've added checks for all the
2164 record types that Exim uses.
2165
182ad5cf
PH
2166PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2167 not automatically generating a new one, as it is supposed to. This
2168 prevented TLS from working. If the file did exist, but contained invalid
2169 data, a new version was generated, as expected. It was only the case of a
2170 non-existent file that was broken.
2171
b0d9fc80
TK
2172TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2173 with a change in libdomainkeys > 0.64.
2174
2175TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2176 from DNS. If the selector record carries the flag, it now has
2177 precedence over the domain-wide flag.
2178
2179TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2180
47c7a64a
PH
2181PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2182 the use of a port name that isn't defined in /etc/services) occurred, the
2183 message was deferred as in a normal delivery, and thus remained on the
2184 spool, instead of being failed because of the mua_wrapper setting. This
2185 is now fixed, and I tidied up some of the mua_wrapper messages at the
2186 same time.
2187
a388bce4
SC
2188SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2189 the messages in a hash of arrays rather than using individual hashes.
2190 This is a bit cleaner and results in dramatic memory savings, albeit
2191 at a slight CPU cost.
2192
2193SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2194 as requested by Marc Sherman.
2195
2196SC/10 Eximstats: added histograms for user specified patterns as requested
2197 by Marc Sherman.
2198
0793e4ed
SC
2199SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2200
c58b88df
PH
2201PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2202 fopen() in the content-scanning modules that did not already have it.
2203
e7ad8a65 2204
7982096b
PH
2205Exim version 4.51
2206-----------------
2207
1a46a8c5
PH
2208TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2209 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2210
2f079f46 2211TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2212
2213TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2214
2215PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2216 to test Sieve filters that use "vacation".
2217
2218PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2219 that changes the way the GnuTLS parameters are stored in the cache file.
2220 The new format can be generated externally. For backward compatibility,
2221 if the data in the cache doesn't make sense, Exim assumes it has read an
2222 old-format file, and it generates new data and writes a new file. This
2223 means that you can't go back to an older release without removing the
2224 file.
2225
2226PH/03 A redirect router that has both "unseen" and "one_time" set does not
2227 work if there are any delivery delays because "one_time" forces the
2228 parent to be marked "delivered", so its unseen clone is never tried
2229 again. For this reason, Exim now forbids the simultaneous setting of
2230 these two options.
2231
2232PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2233 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2234 entry if you want to know the details. The fix, however, neglected to
2235 consider the case when local delivery batching is involved. The test for
2236 "previously delivered" was not happening when checking to see if an
2237 address could be batched with a previous (undelivered) one; under
2238 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2239 address.
1a46a8c5
PH
2240
2241PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2242 in its include files, and this causes problems building Exim.
2243
2244PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2245 header_syntax) but Exim was just ignoring anything given after a slash.
2246 In particular, this caused confusion with an attempt to use "verify =
2247 reverse_host_lookup/defer_ok". An error is now given when options are
2248 supplied for verify items that do not have them. (Maybe reverse_host_
2249 lookup should have a defer_ok option, but that's a different point.)
2250
2251PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2252 defined by RFC 821) to 2048, because there were problems with some AUTH
2253 commands, and RFC 1869 says the size should be increased for extended
2254 SMTP commands that take arguments.
2255
2256PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2257 Finch).
2258
2259PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2260 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2261
49c2d5ea
PH
2262PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2263 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2264 whatever). Otherwise the password may appear in the log. Following change
2265 PH/42 below, there is no longer a chance of it appearing in a bounce
2266 message.
49c2d5ea 2267
bf759a8b
PH
2268PH/11 Installed exipick version 20050225.0 from John Jetmore.
2269
83364d30
PH
2270PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2271 of its addresses was ever tried. (Bugzilla bug #2.)
2272
7999bbd7
PH
2273PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2274 the result incorrectly in the debug output. (It correctly added a newline
2275 to what was transported.)
2276
7dbf77c9
PH
2277TF/01 Added $received_time.
2278
74e0617f
PH
2279PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2280 commented out examples of how to interface to a virus scanner and to
2281 SpamAssassin. Also added commented examples of av_scanner and
2282 spamd_address settings.
2283
2f079f46
PH
2284PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2285 and controls are allowed in which ACLs. There were a couple of minor
2286 errors. Some of the entries in the conditions table (which is a table of
2287 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2288 negation of where the condition IS allowed.
2289
8c841523
PH
2290PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2291
7766a4f0
PH
2292PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2293 header file does not have a version number, so I've had to invent a new
2294 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2295 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2296 radiusclient), but it was contributed by a Radius user.
2297
8b417f2c
PH
2298PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2299 files or directories, for OpenSSL.
2300
901f42cb
PH
2301PH/19 When an Exim process that is running as root has to create an Exim log
2302 file, it does so in a subprocess that runs as exim:exim so as to get the
2303 ownership right at creation (otherwise, other Exim processes might see
2304 the file with the wrong ownership). There was no test for failure of this
2305 fork() call, which would lead to the process getting stuck as it waited
2306 for a non-existent subprocess. Forks do occasionally fail when resources
2307 run out. I reviewed all the other calls to fork(); they all seem to check
2308 for failure.
2309
f9b9210e
PH
2310PH/20 When checking for unexpected SMTP input at connect time (before writing
2311 the banner), Exim was not dealing correctly with a non-positive return
2312 from the read() function. If the client had disconnected by this time,
2313 the result was a log entry for a synchronization error with an empty
2314 string after "input=" when read() returned zero. If read() returned -1
2315 (an event I could not check), uninitialized data bytes were printed.
2316 There were reports of junk text (parts of files, etc) appearing after
2317 "input=".
2318
54cdb463
PH
2319PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2320
cf00dad6
PH
2321PH/22 Added support for macro redefinition, and (re)definition in between
2322 driver and ACL definitions.
2323
acb1b346
PH
2324PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2325 forgetting to use the resulting value; it was using the unexpanded value.
2326
c5ddb310
PH
2327PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2328 hadn't been configured. The fix is from Juergen Kreileder, who
2329 understands it better than I do:
2330
2331 "Here's what I see happening with three configured cyrus_sasl
2332 authenticators configured (plain, login, cram-md5):
2333
2334 On startup auth_cyrus_sasl_init() gets called for each of these.
2335 This means three calls to sasl_listmech() without a specified mech_list.
2336 => SASL tests which mechs of all available mechs actually work
2337 => three warnings about OTP not working
2338 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2339
2340 With the patch, sasl_listmech() also gets called three times. But now
2341 SASL's mech_list option is set to the server_mech specified in the the
2342 authenticator. Or in other words, the answer from sasl_listmech()
2343 gets limited to just the mech you're testing for (which is different
2344 for each call.)
2345 => the return list contains just 'plain' or 'login', 'cram-md5' or
2346 nothing depending on the value of ob->server_mech.
2347
2348 I've just tested the patch: Authentication still works fine,
2349 unavailable mechs specified in the exim configuration are still
2350 caught, and the auth.log warnings about OTP are gone."
2351
31619da6
PH
2352PH/25 When debugging is enabled, the contents of the command line are added
2353 to the debugging output, even when log_selector=+arguments is not
2354 specified.
2355
bebaf0fc
PH
2356PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2357 answer is "GNU", and only if the return is "GNU/something" is the answer
2358 "Linux".
2359
475fe28a
PH
2360PH/27 $acl_verify_message is now set immediately after the failure of a
2361 verification in an ACL, and so is available in subsequent modifiers. In
2362 particular, the message can be preserved by coding like this:
2363
2364 warn !verify = sender
2365 set acl_m0 = $acl_verify_message
2366
2367 Previously, $acl_verify_message was set only while expanding "message"
2368 and "log_message" when a very denied access.
2369
7e8bec7a
PH
2370PH/28 Modified OS/os.c-Linux with
2371
2372 -#ifndef OS_LOAD_AVERAGE
2373 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2374
2375 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2376 nomenclature these days.)
2377
e4a89c47
PH
2378PH/29 Installed patch from the Sieve maintainer that adds the options
2379 sieve_useraddress and sieve_subaddress to the redirect router.
2380
5ca2a9a1
PH
2381PH/30 In these circumstances:
2382 . Two addresses routed to the same list of hosts;
2383 . First host does not offer TLS;
2384 . First host accepts first address;
2385 . First host gives temporary error to second address;
2386 . Second host offers TLS and a TLS session is established;
2387 . Second host accepts second address.
2388 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2389 and peerdn, if requested) that were in fact used only for the second
2390 address.
7e8bec7a 2391
c688b954
PH
2392PH/31 When doing a callout as part of verifying an address, Exim was not paying
2393 attention to any local part prefix or suffix that was matched by the
2394 router that accepted the address. It now behaves in the same way as it
2395 does for delivery: the affixes are removed from the local part unless
2396 rcpt_include_affixes is set on the transport.
2397
fed77020
PH
2398PH/32 Add the sender address, as F=<...>, to the log line when logging a
2399 timeout during the DATA phase of an incoming message.
2400
7fe1560f
PH
2401PH/33 Sieve envelope tests were broken for match types other than :is. I have
2402 applied a patch sanctioned by the Sieve maintainer.
c688b954 2403
ebb6e6d5
PH
2404PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2405 the uid or gid is negative. A case of a negative gid caused this to be
2406 noticed. The fix allows for either to be negative.
2407
9c4e8f60
PH
2408PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2409 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2410 overlooked.
2411
2412PH/36 The change PH/12 above was broken. Fixed it.
2413
d7174846
PH
2414PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2415 the grounds that routing the same address twice would always produce the
2416 same answer. This might have been true once, but it is certainly no
2417 longer true now. Routing a child address may depend on the previous
2418 routing that produced that child. Some complicated redirection strategies
2419 went wrong when messages had multiple recipients, and made Exim's
2420 behaviour dependent on the order in which the addresses were given.
2421
2422 I have moved the duplicate checking until after the routing is complete.
2423 Exim scans the addresses that are assigned to local and remote
2424 transports, and removes any duplicates. This means that more work will be
2425 done, as duplicates will always all be routed, but duplicates are
2426 presumably rare, so I don't expect this is of any significance.
2427
2428 For deliveries to pipes, files, and autoreplies, the duplicate checking
2429 still happens during the routing process, since they are not going to be
2430 routed further.
2431
cfe75fc3
PH
2432PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2433 It corrects a timeout issue with spamd. This is Ian's comment: "The
2434 background is that sometimes spamd either never reads data from a
2435 connection it has accepted, or it never writes response data. The exiscan
2436 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2437 blindly assumes that writes won't block so it may never time out."
2438
be22d70e
PH
2439PH/39 Allow G after quota size as well as K and M.
2440
0612b098
PH
2441PH/40 The value set for $authenticated_id in an authenticator may not contain
2442 binary zeroes or newlines because the value is written to log lines and
2443 to spool files. There was no check on this. Now the value is run through
2444 the string_printing() function so that such characters are converted to
2445 printable escape sequences.
2446
2e0c1448
PH
2447PH/41 $message_linecount is a new variable that contains the total number of
2448 lines in the message. Compare $body_linecount, which is the count for the
2449 body only.
2450
447d236c
PH
2451PH/42 Exim no longer gives details of delivery errors for specific addresses in
2452 bounce and delay warning messages, except in certain special cases, which
2453 are as follows:
2454
2455 (a) An SMTP error message from a remote host;
2456 (b) A message specified in a :fail: redirection;
2457 (c) A message specified in a "fail" command in a system filter;
2458 (d) A message specified in a FAIL return from the queryprogram router;
2459 (e) A message specified by the cannot_route_message router option.
2460
2461 In these cases only, Exim does include the error details in bounce and
2462 warning messages. There are also a few cases where bland messages such
2463 as "unrouteable address" or "local delivery error" are given.
2464
d20976dc
PH
2465PH/43 $value is now also set for the "else" part of a ${run expansion.
2466
f656d135
PH
2467PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2468 being worked on, but at least Exim now implements the latest version to
2469 play with."
2470
2e2a30b4
PH
2471PH/45 In a pipe transport, although a timeout while waiting for the pipe
2472 process to complete was treated as a delivery failure, a timeout while
2473 writing the message to the pipe was logged, but erroneously treated as a
2474 successful delivery. Such timeouts include transport filter timeouts. For
2475 consistency with the overall process timeout, these timeouts are now
2476 treated as errors, giving rise to delivery failures by default. However,
2477 there is now a new Boolean option for the pipe transport called
2478 timeout_defer, which, if set TRUE, converts the failures into defers for
2479 both kinds of timeout. A transport filter timeout is now identified in
2480 the log output.
2481
9176e9f0
PH
2482PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2483 systems where "make" and "gmake" are different, calling "gmake" at top
2484 level broke things. I've arranged for the value of $(MAKE) to be passed
2485 from the Makefile to this script so that it can call the same version of
2486 "make".
2487
7982096b 2488
bbe902f0
PH
2489A note about Exim versions 4.44 and 4.50
2490----------------------------------------
2491
2492Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2493changes of various kinds. As a consequence, a big documentation update was
2494needed. This delayed the release for rather longer than seemed good, especially
2495in the light of a couple of (minor) security issues. Therefore, the changes
2496that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2497release. So 4.44 and 4.50 are in effect two different branches that both start
2498from 4.43.
2499
2500I have left the 4.50 change log unchanged; it contains all the changes since
25014.43. The change log for 4.44 is below; many of its items are identical to
2502those for 4.50. This seems to be the most sensible way to preserve the
2503historical information.
2504
2505
f7b63901 2506Exim version 4.50
495ae4b0
PH
2507-----------------
2508
5fe762f6
PH
2509 1. Minor wording change to the doc/README.SIEVE file.
2510
139059f6 2511 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2512 computation of the current number of files was incorrect.
495ae4b0 2513
7086e875
PH
2514 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2515 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2516 place.
2517
35af9f61
PH
2518 4. Give more explanation in the error message when the command for a transport
2519 filter fails to execute.
2520
b668c215
PH
2521 5. There are several places where Exim runs a non-Exim command in a
2522 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2523 was being done only for the command run by the queryprogram router. It is
2524 now done for all such subprocesses. The other cases are: ${run, transport
2525 filters, and the commands run by the lmtp and pipe transports.
2526
a494b1e1
PH
2527 6. Added CONFIGURE_GROUP build-time option.
2528
2529 7. Some older OS have a limit of 256 on the maximum number of file
2530 descriptors. Exim was using setrlimit() to set 1000 as a large value
2531 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2532 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2533
c5fcb476
PH
2534 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2535 was an oversight, and furthermore, ever since the addition of extra
2536 controls (e.g. 4.43/32), the checks on when to allow different forms of
2537 "control" were broken. There should now be diagnostics for all cases when a
2538 control that does not make sense is encountered.
2539
69358f02
PH
2540 9. Added the /retain_sender option to "control=submission".
2541
5be20824
PH
254210. $recipients is now available in the predata ACL (oversight).
2543
eb2c0248
PH
254411. Tidy the search cache before the fork to do a delivery from a message
2545 received from the command line. Otherwise the child will trigger a lookup
2546 failure and thereby defer the delivery if it tries to use (for example) a
2547 cached ldap connection that the parent has called unbind on.
2548
2a3eea10
PH
254912. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2550 of $address_data from the recipient verification was clobbered by the
2551 sender verification.
2552
255313. The value of address_data from a sender verification is now available in
2554 $sender_address_data in subsequent conditions in the ACL statement.
2555
23c7ff99
PH
255614. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2557
4deaf07d
PH
255815. Added a new option "connect=<time>" to callout options, to set a different
2559 connection timeout.
2560
926e1192
PH
256116. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2562 was its contents. (It was OK if the option was not defined at all.)
2563
650edc6f
PH
256417. A "Completed" log line is now written for messages that are removed from
2565 the spool by the -Mrm option.
2566
2c7db3f5
PH
256718. New variables $sender_verify_failure and $recipient_verify_failure contain
2568 information about exactly what failed.
2569
3d235903
PH
257019. Added -dd to debug only the daemon process.
2571
7c7ad977
PH
257220. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2573 handles timeouts, both on the server side and network timeouts. Renamed the
2574 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2575
981756db
PH
257621. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2577 It is now set to "smtps".
2578
d4eb88df
PH
257922. $host_address is now set to the target address during the checking of
2580 ignore_target_hosts.
2581
258223. When checking ignore_target_hosts for an ipliteral router, no host name was
2583 being passed; this would have caused $sender_host_name to have been used if
2584 matching the list had actually called for a host name (not very likely,
2585 since this list is usually IP addresses). A host name is now passed as
2586 "[x.x.x.x]".
2587
7d468ab8
PH
258824. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2589 code that specifies a non-restarting handler (typically sigaction() in
2590 modern systems) in an attempt to fix a rare and obscure crash bug.
2591
259225. Narrowed the window for a race in the daemon that could cause it to ignore
2593 SIGCHLD signals. This is not a major problem, because they are used only to
2594 wake it up if nothing else does.
2595
62c0818f
PH
259626. A malformed maildirsize file could cause Exim to calculate negative values
2597 for the mailbox size or file count. Odd effects could occur as a result.
2598 The maildirsize information is now recalculated if the size or filecount
2599 end up negative.
2600
26034054
PH
260127. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2602 support for a long time. Removed HAVE_SYS_VFS_H.
2603
af66f652
PH
260428. Installed the latest version of exipick from John Jetmore.
2605
90af77f4
PH
260629. In an address list, if the pattern was not a regular expression, an empty
2607 subject address (from a bounce message) matched only if the pattern was an
2608 empty string. Non-empty patterns were not even tested. This was the wrong
2609 because it is perfectly reasonable to use an empty address as part of a
2610 database query. An empty address is now tested by patterns that are
2611 lookups. However, all the other forms of pattern expect the subject to
2612 contain a local part and a domain, and therefore, for them, an empty
2613 address still always fails if the pattern is not itself empty.
2614
d8ef3577
PH
261530. Exim went into a mad DNS loop when attempting to do a callout where the
2616 host was specified on an smtp transport, and looking it up yielded more
2617 than one IP address.
2618
5cb8cbc6
PH
261931. Re-factored the code for checking spool and log partition space into a
2620 function that finds that data and another that does the check. The former
2621 is then used to implement four new variables: $spool_space, $log_space,
2622 $spool_inodes, and $log_inodes.
2623
14702f5b
PH
262432. The RFC2047 encoding function was originally intended for short strings
2625 such as real names; it was not keeping to the 75-character limit for
2626 encoded words that the RFC imposes. It now respects the limit, and
2627 generates multiple encoded words if necessary. To be on the safe side, I
2628 have increased the buffer size for the ${rfc2047: expansion operator from
2629 1024 to 2048 bytes.
2630
063b1e99
PH
263133. It is now permitted to omit both strings after an "if" condition; if the
2632 condition is true, the result is "true". As before, when the second string
2633 is omitted, a false condition yields an empty string. This makes it less
2634 cumbersome to write custom ACL and router conditions.
2635
652e1b65
PH
263634. Failure to deliver a bounce message always caused it to be frozen, even if
2637 there was an errors_to setting on the router. The errors_to setting is now
2638 respected.
2639
6f0c9a4f
PH
264035. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2641 canonical form (fully expanded) before being placed in
2642 $sender_host_address.
2643
33397d19
PH
264436. The table in the code that translates DNS record types into text (T_A to
2645 "A" for instance) was missing entries for NS and CNAME. It is just possible
2646 that this could have caused confusion if both these types were looked up
2647 for the same domain, because the text type is used as part of Exim's
2648 per-process caching. But the chance of anyone hitting this buglet seems
2649 very small.
2650
7bb56e1f
PH
265137. The dnsdb lookup has been extended in a number of ways.
2652
2653 (1) There is a new type, "zns", which walks up the domain tree until it
2654 finds some nameserver records. It should be used with care.
2655
ea3bc19b
PH
2656 (2) There is a new type, "mxh", which is like "mx" except that it returns
2657 just the host names, not the priorities.
2658
2659 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2660 looked up. The behaviour when one of the lookups defers can be
2661 controlled by a keyword.
7bb56e1f 2662
ea3bc19b 2663 (4) It is now possible to specify the separator character for use when
7bb56e1f 2664 multiple records are returned.
33397d19 2665
0bcb2a0e
PH
266638. The dnslists ACL condition has been extended: it is now possible to supply
2667 a list of IP addresses and/or domains to be looked up in a particular DNS
2668 domain.
2669
2ac0e484
PH
267039. Added log_selector=+queue_time_overall.
2671
4e1fde53
PH
267240. When running the queue in the test harness, wait just a tad after forking a
2673 delivery process, to get repeatability of debugging output.
2674
de365ded
PH
267541. Include certificate and key file names in error message when GnuTLS fails
2676 to set them up, because the GnuTLS error message doesn't include the name
2677 of the failing file when there is a problem reading it.
2678
f05da2e8
PH
267942. Allow both -bf and -bF in the same test run.
2680
d6453af2
PH
268143. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2682
f7b63901
PH
268344. The "Exiscan patch" is now merged into the mainline Exim source.
2684
268545. Sometimes the final signoff response after QUIT could fail to get
2686 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2687 < 0 before doing a fflush(). This bug looks as though it goes back to the
2688 introduction of TLS in release 3.20, but "sometimes" must have been rare
2689 because the tests only now provoked it.
2690
a444213a
PH
269146. Reset the locale to "C" after calling embedded Perl, in case it was changed
2692 (this can affect the format of dates).
2693
0ec020ea
PH
269447. exim_tidydb, when checking for the continued existence of a message for
2695 which it has found a message-specific retry record, was not finding
2696 messages that were in split spool directories. Consequently, it was
2697 deleting retry records that should have stayed in existence.
2698
b1206957
PH
269948. Steve fixed some bugs in eximstats.
2700
270149. The SPA authentication driver was not abandoning authentication and moving
2702 on to the next authenticator when an expansion was forced to fail,
2703 contradicting the general specification for all authenticators. Instead it
2704 was generating a temporary error. It now behaves as specified.
2705
26dd5a95
PH
270650. The default ordering of permitted cipher suites for GnuTLS was pessimal
2707 (the order specifies the preference for clients). The order is now AES256,
2708 AES128, 3DES, ARCFOUR128.
2709
343b2385
PH
271051. Small patch to Sieve code - explicitly set From: when generating an
2711 autoreply.
2712
1c5466b9
PH
271352. Exim crashed if a remote delivery caused a very long error message to be
2714 recorded - for instance if somebody sent an entire SpamAssassin report back
2715 as a large number of 550 error lines. This bug was coincidentally fixed by
2716 increasing the size of one of Exim's internal buffers (big_buffer) that
2717 happened as part of the Exiscan merge. However, to be on the safe side, I
2718 have made the code more robust (and fixed the comments that describe what
2719 is going on).
2720
55ee9ee3
PH
272153. Now that there can be additional text after "Completed" in log lines (if
2722 the queue_time_overall log selector is set), a one-byte patch to exigrep
2723 was needed to allow it to recognize "Completed" as not the last thing in
2724 the line.
2725
d38f8232
PH
272654. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2727 patch that reportedly fixes this has been added. I am not expert enough to
2728 create a test for it. This is what the patch creator wrote:
2729
2730 "I found a little strange behaviour of ldap code when working with
2731 Windows 2003 AD Domain, where users was placed in more than one
2732 Organization Units. When I tried to give exim partial DN, the exit code
2733 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2734 But simultaneously result of request was absolutely normal ldap result,
2735 so I produce this patch..."
2736
3295e65b
PH
2737 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2738 REFERENCE, so I have modified the code to exclude the patch when that macro
2739 is not defined.
2740
7102e136
PH
274155. Some experimental protocols are using DNS PTR records for new purposes. The
2742 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2743 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2744 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2745 CAN-2005-0021
7102e136 2746
3ca0ba97
PH
274756. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2748
c2bcbe20
PH
274957. Double the size of the debug message buffer (to 2048) so that more of very
2750 long debug lines gets shown.
2751
18ce445d
PH
275258. The exicyclog utility now does better if the number of log files to keep
2753 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2754
1f5b4c3d
PH
275559. Two changes related to the smtp_active_hostname option:
2756
2757 (1) $smtp_active_hostname is now available as a variable.
2758 (2) The default for smtp_banner uses $smtp_active_hostname instead
2759 of $primary_hostname.
2760
b975ba52
PH
276160. The host_aton() function is supposed to be passed a string that is known
2762 to be a valid IP address. However, in the case of IPv6 addresses, it was
2763 not checking this. This is a hostage to fortune. Exim now panics and dies
2764 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2765 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2766 components; fortuitously, this particular loophole had already been fixed
2767 by change 4.50/55 above.
2768
2769 If there are any other similar loopholes, the new check in host_aton()
2770 itself should stop them being exploited. The report I received stated that
2771 data on the command line could provoke the exploit when Exim was running as
2772 exim, but did not say which command line option was involved. All I could
2773 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2774 running as the user.
ea3a6f44 2775 CAN-2005-0021
85b87bc2
PH
2776
277761. There was a buffer overflow vulnerability in the SPA authentication code
2778 (which came originally from the Samba project). I have added a test to the
2779 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2780 CAN-2005-0022
b975ba52 2781
17ffcae7
PH
278262. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2783 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2784
d95f9fdb
PH
278563. The daemon start-up calls getloadavg() while still root for those OS that
2786 need the first call to be done as root, but it missed one case: when
2787 deliver_queue_load_max is set with deliver_drop_privilege. This is
2788 necessary for the benefit of the queue runner, because there is no re-exec
2789 when deliver_drop_privilege is set.
2790
86b8287f
PH
279164. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2792 This has been fixed.
2793
60dc5e56
PH
279465. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2795 was in use, was not putting the data itself into the right store pool;
2796 consequently, it could be overwritten for a subsequent message in the same
2797 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2798 the caching.)
2799
533244af
PH
280066. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2801
a5a28604
PH
280267. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2803 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2804 the function were treating the return as a boolean value, which happened to
2805 work because 0=false and not-0=true, but is not correct code.
2806
7e634d24
PH
280768. The host_aton() function was not handling scoped IPv6 addresses (those
2808 with, for example, "%eth0" on the end) correctly.
2809
3e11c26b
PH
281069. Fixed some compiler warnings in acl.c for the bitmaps specified with
2811 negated items (that is, ~something) in unsigned ints. Some compilers
2812 apparently mutter when there is no cast.
2813
6729cf78
PH
281470. If an address verification called from an ACL failed, and did not produce a
2815 user-specific message (i.e. there was only a "system" message), nothing was
2816 put in $acl_verify_message. In this situation, it now puts the system
2817 message there.
2818
00f00ca5
PH
281971. Change 4.23/11 added synchronization checking at the start of an SMTP
2820 session; change 4.31/43 added the unwanted input to the log line - except
2821 that it did not do this in the start of session case. It now does.
2822
c9bdd01c
PH
282372. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2824 This is wrong and can cause the other end to generate a synchronization
2825 error if it is another Exim or anything else that does the synchronization
2826 check. A QUIT command is no longer sent after a timeout.
2827
d43194df
PH
282873. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2829 during host lookups.
2830
fe5b5d0b
PH
283174. The defer_ok option of callout verification was not working if it was used
2832 when verifying addresses in header lines, that is, for this case:
2833
2834 verify = header_sender/callout=defer_ok
2835
76a2d7ba
PH
283675. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2837 those file descriptors could be used for SMTP connections. If anything
2838 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2839 could be sent to the SMTP client, causing chaos. The daemon now opens
2840 stdin, stdout, and stderr to /dev/null when it puts itself into the
2841 background.
2842
284376. Arrange for output from Perl's "warn" command to be written to Exim's main
2844 log by default. The user can override this with suitable Perl magic.
2845
04f7d5b9
PH
284677. The use of log_message on a "discard" ACL verb, which is supposed to add to
2847 the log message when discard triggers, was not working for the DATA ACL or
2848 for the non-SMTP ACL.
2849
bc60667e
PH
285078. Error message wording change in sieve.c.
2851
bb6e88ff
PH
285279. If smtp_accept_max_per_host was set, the number of connections could be
2853 restricted to fewer than expected, because the daemon was trying to set up
2854 a new connection before checking whether the processes handling previous
2855 connections had finished. The check for completed processes is now done
2856 earlier. On busy systems, this bug wouldn't be noticed because something
2857 else would have woken the daemon, and it would have reaped the completed
2858 process earlier.
2859
1e70f85b
PH
286080. If a message was submitted locally by a user whose login name contained one
2861 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2862 It caused a spool format error. I have fixed the spool reading code. A
2863 related problem was that the "from" clause in the Received: line became
2864 illegal because of the space(s). It is now covered by ${quote_local_part.
2865
286681. Included the latest eximstats from Steve (adds average sizes to HTML Top
2867 tables).
2868
4e01f9d6
PH
286982. Updated OS/Makefile-AIX as per message from Mike Meredith.
2870
1ee1cef2
PH
287183. Patch from Sieve maintainer to fix unterminated string problem in
2872 "vacation" handling.
2873
6e2b4ccc
PH
287484. Some minor changes to the Linux configuration files to help with other
2875 OS variants using glibc.
2876
8e669ac1
PH
287785. One more patch for Sieve to update vacation handling to latest spec.
2878
495ae4b0 2879
bbe902f0
PH
2880----------------------------------------------------
2881See the note above about the 4.44 and 4.50 releases.
2882----------------------------------------------------
2883
2884
2885Exim version 4.44
2886-----------------
2887
2888 1. Change 4.43/35 introduced a bug that caused file counts to be
2889 incorrectly computed when quota_filecount was set in an appendfile
2890 transport
2891
2892 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2893 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2894 place.
2895
2896 3. Give more explanation in the error message when the command for a transport
2897 filter fails to execute.
2898
2899 4. There are several places where Exim runs a non-Exim command in a
2900 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2901 was being done only for the command run by the queryprogram router. It is
2902 now done for all such subprocesses. The other cases are: ${run, transport
2903 filters, and the commands run by the lmtp and pipe transports.
2904
2905 5. Some older OS have a limit of 256 on the maximum number of file
2906 descriptors. Exim was using setrlimit() to set 1000 as a large value
2907 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2908 systems. I've change it so that if it can't get 1000, it tries for 256.
2909
2910 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2911 was an oversight, and furthermore, ever since the addition of extra
2912 controls (e.g. 4.43/32), the checks on when to allow different forms of
2913 "control" were broken. There should now be diagnostics for all cases when a
2914 control that does not make sense is encountered.
2915
2916 7. $recipients is now available in the predata ACL (oversight).
2917
2918 8. Tidy the search cache before the fork to do a delivery from a message
2919 received from the command line. Otherwise the child will trigger a lookup
2920 failure and thereby defer the delivery if it tries to use (for example) a
2921 cached ldap connection that the parent has called unbind on.
2922
2923 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2924 of $address_data from the recipient verification was clobbered by the
2925 sender verification.
2926
292710. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2928 was its contents. (It was OK if the option was not defined at all.)
2929
293011. A "Completed" log line is now written for messages that are removed from
2931 the spool by the -Mrm option.
2932
293312. $host_address is now set to the target address during the checking of
2934 ignore_target_hosts.
2935
293613. When checking ignore_target_hosts for an ipliteral router, no host name was
2937 being passed; this would have caused $sender_host_name to have been used if
2938 matching the list had actually called for a host name (not very likely,
2939 since this list is usually IP addresses). A host name is now passed as
2940 "[x.x.x.x]".
2941
294214. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2943 code that specifies a non-restarting handler (typically sigaction() in
2944 modern systems) in an attempt to fix a rare and obscure crash bug.
2945
294615. Narrowed the window for a race in the daemon that could cause it to ignore
2947 SIGCHLD signals. This is not a major problem, because they are used only to
2948 wake it up if nothing else does.
2949
295016. A malformed maildirsize file could cause Exim to calculate negative values
2951 for the mailbox size or file count. Odd effects could occur as a result.
2952 The maildirsize information is now recalculated if the size or filecount
2953 end up negative.
2954
295517. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2956 support for a long time. Removed HAVE_SYS_VFS_H.
2957
ea3a6f44 295818. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2959
296019. Allow an empty sender to be matched against a lookup in an address list.
2961 Previously the only cases considered were a regular expression, or an
2962 empty pattern.
2963
296420. Exim went into a mad DNS lookup loop when doing a callout where the
2965 host was specified on the transport, if the DNS lookup yielded more than
2966 one IP address.
2967
ea3a6f44
NM
296821. The RFC2047 encoding function was originally intended for short strings
2969 such as real names; it was not keeping to the 75-character limit for
2970 encoded words that the RFC imposes. It now respects the limit, and
2971 generates multiple encoded words if necessary. To be on the safe side, I
2972 have increased the buffer size for the ${rfc2047: expansion operator from
2973 1024 to 2048 bytes.
bbe902f0 2974
ea3a6f44
NM
297522. Failure to deliver a bounce message always caused it to be frozen, even if
2976 there was an errors_to setting on the router. The errors_to setting is now
2977 respected.
bbe902f0
PH
2978
297923. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2980 canonical form (fully expanded) before being placed in
2981 $sender_host_address.
2982
298324. Updated eximstats to version 1.33
2984
ea3a6f44
NM
298525. Include certificate and key file names in error message when GnuTLS fails
2986 to set them up, because the GnuTLS error message doesn't include the name
2987 of the failing file when there is a problem reading it.
bbe902f0
PH
2988
298926. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2990 As per change 25.
bbe902f0 2991
ea3a6f44
NM
299227. Reset the locale to "C" after calling embedded Perl, in case it was changed
2993 (this can affect the format of dates).
bbe902f0 2994
ea3a6f44
NM
299528. exim_tidydb, when checking for the continued existence of a message for
2996 which it has found a message-specific retry record, was not finding
2997 messages that were in split spool directories. Consequently, it was
2998 deleting retry records that should have stayed in existence.
bbe902f0
PH
2999
300029. eximstats updated to version 1.35
3001 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3002 1.35 - bugfix such that pie charts by volume are generated correctly
3003
ea3a6f44
NM
300430. The SPA authentication driver was not abandoning authentication and moving
3005 on to the next authenticator when an expansion was forced to fail,
3006 contradicting the general specification for all authenticators. Instead it
3007 was generating a temporary error. It now behaves as specified.
bbe902f0 3008
ea3a6f44
NM
300931. The default ordering of permitted cipher suites for GnuTLS was pessimal
3010 (the order specifies the preference for clients). The order is now AES256,
3011 AES128, 3DES, ARCFOUR128.
bbe902f0 3012
ea3a6f44
NM
301331. Small patch to Sieve code - explicitly set From: when generating an
3014 autoreply.
bbe902f0 3015
ea3a6f44
NM
301632. Exim crashed if a remote delivery caused a very long error message to be
3017 recorded - for instance if somebody sent an entire SpamAssassin report back
3018 as a large number of 550 error lines. This bug was coincidentally fixed by
3019 increasing the size of one of Exim's internal buffers (big_buffer) that
3020 happened as part of the Exiscan merge. However, to be on the safe side, I
3021 have made the code more robust (and fixed the comments that describe what
3022 is going on).
bbe902f0 3023
ea3a6f44
NM
302433. Some experimental protocols are using DNS PTR records for new purposes. The
3025 keys for these records are domain names, not reversed IP addresses. The
3026 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3027 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3028 CAN-2005-0021
3029
ea3a6f44
NM
303034. The host_aton() function is supposed to be passed a string that is known
3031 to be a valid IP address. However, in the case of IPv6 addresses, it was
3032 not checking this. This is a hostage to fortune. Exim now panics and dies
3033 if the condition is not met. A case was found where this could be provoked
3034 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3035 components; fortuitously, this particular loophole had already been fixed
3036 by change 4.50/55 or 4.44/33 above.
3037
3038 If there are any other similar loopholes, the new check in host_aton()
3039 itself should stop them being exploited. The report I received stated that
3040 data on the command line could provoke the exploit when Exim was running as
3041 exim, but did not say which command line option was involved. All I could
3042 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3043 running as the user.
bbe902f0
PH
3044 CAN-2005-0021
3045
ea3a6f44
NM
304635. There was a buffer overflow vulnerability in the SPA authentication code
3047 (which came originally from the Samba project). I have added a test to the
3048 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3049 CAN-2005-0022
3050
ea3a6f44
NM
305136. The daemon start-up calls getloadavg() while still root for those OS that
3052 need the first call to be done as root, but it missed one case: when
3053 deliver_queue_load_max is set with deliver_drop_privilege. This is
3054 necessary for the benefit of the queue runner, because there is no re-exec
3055 when deliver_drop_privilege is set.
bbe902f0 3056
ea3a6f44
NM
305737. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3058 was in use, was not putting the data itself into the right store pool;
3059 consequently, it could be overwritten for a subsequent message in the same
3060 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3061 the caching.)
bbe902f0 3062
ea3a6f44
NM
306338. Sometimes the final signoff response after QUIT could fail to get
3064 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3065 < 0 before doing a fflush(). This bug looks as though it goes back to the
3066 introduction of TLS in release 3.20, but "sometimes" must have been rare
3067 because the tests only now provoked it.
bbe902f0
PH
3068
3069
495ae4b0
PH
3070Exim version 4.43
3071-----------------
3072
3073 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3074 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3075 Now it returns an integer. A number of calls were still expecting a T/F
3076 return. Fortuitously, in all cases, the tests worked in OK situations,
3077 which is the norm. However, things would have gone wrong on any write
3078 failures on the smtp file descriptor. This function is used when sending
3079 messages over SMTP and also when doing verify callouts.
3080
3081 2. When Exim is called to do synchronous delivery of a locally submitted
3082 message (the -odf or -odi options), it no longer closes stderr before doing
3083 the delivery.
3084
3085 3. Implemented the mua_wrapper option.
3086
3087 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3088
3089 5. Implemented the functions header_remove(), header_testname(),
3090 header_add_at_position(), and receive_remove_recipient(), and exported them
3091 to local_scan().
3092
3093 6. If an ACL "warn" statement specified the addition of headers, Exim already
3094 inserted X-ACL-Warn: at the start if there was no header name. However, it
3095 was not making this test for the second and subsequent header lines if
3096 there were newlines in the string. This meant that an invalid header could
3097 be inserted if Exim was badly configured.
3098
3099 7. Allow an ACL "warn" statement to add header lines at the start or after all
3100 the Received: headers, as well as at the end.
3101
3102 8. Added the rcpt_4xx retry error code.
3103
3104 9. Added postmaster_mailfrom=xxx to callout verification option.
3105
310610. Added mailfrom=xxxx to the callout verification option, for verify=
3107 header_sender only.
3108
310911. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3110 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3111
311212. Inserted some casts to stop certain compilers warning when using pointer
3113 differences as field lengths or precisions in printf-type calls (mostly
3114 affecting debugging statements).
3115
311613. Added optional readline() support for -be (dynamically loaded).
3117
311814. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3119 same clock tick as a message's arrival, so that its received time was the
3120 same as the "first fail" time on the retry record, and that message
3121 remained on the queue past the ultimate address timeout, every queue runner
3122 would try a delivery (because it was past the ultimate address timeout) but
3123 after another failure, the ultimate address timeout, which should have then
3124 bounced the address, did not kick in. This was a "< instead of <=" error;
3125 in most cases the first failure would have been in the next clock tick
3126 after the received time, and all would be well.
3127
312815. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3129 being recognized when the domain list was tested by the match_domain
3130 condition in an expansion string.
3131
313216. Added the ${str2b64: operator.
3133
313417. Exim was always calling setrlimit() to set a large limit for the number of
3135 processes, without checking whether the existing limit was already
3136 adequate. (It did check for the limit on file descriptors.) Furthermore,
3137 errors from getrlimit() and setrlimit() were being ignored. Now they are
3138 logged to the main and panic logs, but Exim does carry on, to try to do its
3139 job under whatever limits there are.
3140
314118. Imported PCRE 5.0.
3142
314319. Trivial typo in log message " temporarily refused connection" (the leading
3144 space).
3145
314620. If the log selector return_path_on_delivery was set and an address was
3147 redirected to /dev/null, the delivery process crashed because it assumed
3148 that a return path would always be set for a "successful" delivery. In this
3149 case, the whole delivery is bypassed as an optimization, and therefore no
3150 return path is set.
3151
315221. Internal re-arrangement: the function for sending a challenge and reading
3153 a response while authentication was assuming a zero-terminated challenge
3154 string. It's now changed to take a pointer and a length, to allow for
3155 binary data in such strings.
3156
315722. Added the cyrus_sasl authenticator (code supplied by MBM).
3158
315923. Exim was not respecting finduser_retries when seeking the login of the
3160 uid under which it was called; it was always trying 10 times. (The default
3161 setting of finduser_retries is zero.) Also, it was sleeping after the final
3162 failure, which is pointless.
3163
316424. Implemented tls_on_connect_ports.
3165
316625. Implemented acl_smtp_predata.
3167
316826. If the domain in control=submission is set empty, Exim assumes that the
3169 authenticated id is a complete email address when it generates From: or
3170 Sender: header lines.
3171
317227. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3173 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3174 chown and chgrp in /bin and hostname in /usr/bin.
3175
317628. Exim was keeping the "process log" file open after each use, just as it
3177 does for the main log. This opens the possibility of it remaining open for
3178 long periods when the USR1 signal hits a daemon. Occasional processlog
3179 errors were reported, that could have been caused by this. Anyway, it seems
3180 much more sensible not to leave this file open at all, so that is what now
3181 happens.
3182
318329. The long-running daemon process does not normally write to the log once it
3184 has entered its main loop, and it closes the log before doing so. This is
3185 so that log files can straightforwardly be renamed and moved. However,
3186 there are a couple of unusual error situations where the daemon does write
3187 log entries, and I had neglected to close the log afterwards.
3188
318930. The text of an SMTP error response that was received during a remote
3190 delivery was being truncated at 512 bytes. This is too short for some of
3191 the long messages that one sometimes sees. I've increased the limit to
3192 1024.
3193
319431. It is now possible to make retry rules that apply only when a message has a
3195 specific sender, in particular, an empty sender.
3196
319732. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3198 it possible to be selective about when SMTP synchronization is enforced.
3199
320033. Added "control = caseful_local_part" and "control = "caselower_local_part".
3201
320232. Implemented hosts_connection_nolog.
3203
320433. Added an ACL for QUIT.
3205
320634. Setting "delay_warning=" to disable warnings was not working; it gave a
3207 syntax error.
3208
320935. Added mailbox_size and mailbox_filecount to appendfile.
3210
321136. Added control = no_multiline_responses to ACLs.
3212
321337. There was a bug in the logic of the code that waits for the clock to tick
3214 in the case where the clock went backwards by a substantial amount such
3215 that the microsecond fraction of "now" was more than the microsecond
3216 fraction of "then" (but the whole seconds number was less).
3217
321838. Added support for the libradius Radius client library this is found on
3219 FreeBSD (previously only the radiusclient library was supported).
3220
3221
3222Exim version 4.42
3223-----------------
3224
3225 1. When certain lookups returned multiple values in the form name=value, the
3226 quoting of the values was not always being done properly. Specifically:
3227 (a) If the value started with a double quote, but contained no whitespace,
3228 it was not quoted.
3229 (b) If the value contained whitespace other than a space character (i.e.
3230 tabs or newlines or carriage returns) it was not quoted.
3231 This fix has been applied to the mysql and pgsql lookups by writing a
3232 separate quoting function and calling it from the lookup code. The fix
3233 should probably also be applied to nisplus, ibase and oracle lookups, but
3234 since I cannot test any of those, I have not disturbed their existing code.
3235
3236 2. A hit in the callout cache for a specific address caused a log line with no
3237 reason for rejecting RCPT. Now it says "Previous (cached) callout
3238 verification failure".
3239
3240 3. There was an off-by-one bug in the queryprogram router. An over-long
3241 return line was truncated at 256 instead of 255 characters, thereby
3242 overflowing its buffer with the terminating zero. As well as fixing this, I
3243 have increased the buffer size to 1024 (and made a note to document this).
3244
3245 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3246 when Exim is waiting for an SMTP response from a remote server, Exim
3247 restarts its select() call on the socket, thereby resetting its timeout.
3248 This is not a problem when such interrupts are rare. Somebody set up a cron
3249 job to run exiwhat every 2 minutes, which is less than the normal select()
3250 timeout (5 or 10 minutes). This meant that the select() timeout never
3251 kicked in because it was always reset. I have fixed this by comparing the
3252 time when an interrupt arrives with the time at the start of the first call
3253 to select(). If more time than the timeout has elapsed, the interrupt is
3254 treated as a timeout.
3255
3256 5. Some internal re-factoring in preparation for the addition of Sieve
3257 extensions (by MH). In particular, the "personal" test is moved to a
3258 separate function, and given an option for scanning Cc: and Bcc: (which is
3259 not set for Exim filters).
3260
3261 6. When Exim created an email address using the login of the caller as the
3262 local part (e.g. when creating a From: or Sender: header line), it was not
3263 quoting the local part when it contained special characters such as @.
3264
3265 7. Installed new OpenBSD configuration files.
3266
3267 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3268 try to make them clearer.
3269
3270 9. Callout options, other than the timeout value, were being ignored when
3271 verifying sender addresses in header lines. For example, when using
3272
3273 verify = header_sender/callout=no_cache
3274
3275 the cache was (incorrectly) being used.
3276
327710. Added a missing instance of ${EXE} to the exim_install script; this affects
3278 only the Cygwin environment.
3279
328011. When return_path_on_delivery was set as a log selector, if different remote
3281 addresses in the same message used different return paths and parallel
3282 remote delivery occurred, the wrong values would sometimes be logged.
3283 (Whenever a remote delivery process finished, the return path value from
3284 the most recently started remote delivery process was logged.)
3285
328612. RFC 3848 specifies standard names for the "with" phrase in Received: header
3287 lines when AUTH and/or TLS are in use. This is the "received protocol"
3288 field. Exim used to use "asmtp" for authenticated SMTP, without any
3289 indication (in the protocol name) for TLS use. Now it follows the RFC and
3290 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3291 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3292 names appear in log lines as well as in Received: header lines.
3293
329413. Installed MH's patches for Sieve to add the "copy" and "vacation"
3295 extensions, and comparison tests, and to fix some bugs.
3296
329714. Changes to the "personal" filter test:
3298
3299 (1) The test was buggy in that it was just doing the equivalent of
3300 "contains" tests on header lines. For example, if a user's address was
3301 anne@some.where, the "personal" test would incorrectly be true for
3302
3303 To: susanne@some.where
3304
3305 This test is now done by extracting each address from the header in turn,
3306 and checking the entire address. Other tests that are part of "personal"
3307 are now done using regular expressions (for example, to check local parts
3308 of addresses in From: header lines).
3309
3310 (2) The list of non-personal local parts in From: addresses has been
3311 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3312 taken from the Sieve specification recommendations.
3313
3314 (3) If the message contains any header line starting with "List-" it is
3315 treated as non-personal.
3316
3317 (4) The test for "circular" in the Subject: header line has been removed
3318 because it now seems ill-conceived.
3319
332015. Minor typos in src/EDITME comments corrected.
3321
332216. Installed latest exipick from John Jetmore.
3323
332417. If headers_add on a router specified a text string that was too long for
3325 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3326 of string_sprintf() is now avoided.
3327
332818. $message_body_size was not set (it was always zero) when running the DATA
3329 ACL and the local_scan() function.
3330
333119. For the "mail" command in an Exim filter, no default was being set for
3332 the once_repeat time, causing a random time value to be used if "once" was
3333 specified. (If the value happened to be <= 0, no repeat happened.) The
3334 default is now 0s, meaning "never repeat". The "vacation" command was OK
3335 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3336 (I found it when inspecting the code).
3337
333820. There is now an overall timeout for performing a callout verification. It
3339 defaults to 4 times the callout timeout, which applies to individual SMTP
3340 commands during the callout. The overall timeout applies when there is more
3341 than one host that can be tried. The timeout is checked before trying the
3342 next host. This prevents very long delays if there are a large number of
3343 hosts and all are timing out (e.g. when the network connections are timing
3344 out). The value of the overall timeout can be changed by specifying an
3345 additional sub-option for "callout", called "maxwait". For example:
3346
3347 verify = sender/callout=5s,maxwait=20s
3348
334921. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3350 to the end before writing, but this should make it even safer).
3351
335222. Exim was forgetting that it had advertised PIPELINING for the second and
3353 subsequent messages on an SMTP connection. It was also not resetting its
3354 memory on STARTTLS and an internal HELO.
3355
335623. When Exim logs an SMTP synchronization error within a session, it now
3357 records whether PIPELINING has been advertised or not.
3358
335924. Added 3 instances of "(long int)" casts to time_t variables that were being
3360 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3361 rather than long int.
3362
336325. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3364
336526. Added the never_mail option to autoreply.
3366
3367
3368Exim version 4.41
3369-----------------
3370
3371 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3372 crash if the getsockname() call failed; this can happen if a connection is
3373 closed very soon after it is established. The problem was simply in the
3374 order in which certain operations were done, causing Exim to try to write
3375 to the SMTP stream before it had set up the file descriptor. The bug has
3376 been fixed by making things happen in the correct order.
3377
3378
3379Exim version 4.40
3380-----------------
3381
3382 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3383 before the connection was closed, thus losing the rejection response.
3384
3385 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3386 some early Solaris releases, but causes trouble in current releases where
3387 socklen_t is defined.
3388
3389 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3390 always exist.
3391
3392 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3393 configured.
3394
3395 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3396 that releasing the top of it at the end releases what was used for sub-
3397 expansions (unless the block got too big). However, discard this block if
3398 the first thing is a variable or header, so that we can use its block when
3399 it is dynamic (useful for very large $message_headers, for example).
3400
3401 6. Lookups now cache *every* query, not just the most recent. A new, separate
3402 store pool is used for this. It can be recovered when all lookup caches are
3403 flushed. Lookups now release memory at the end of their result strings.
3404 This has involved some general refactoring of the lookup sources.
3405
3406 7. Some code has been added to the store_xxx() functions to reduce the amount
3407 of flapping under certain conditions.
3408
3409 8. log_incoming_interface used to affect only the <= reception log lines. Now
3410 it causes the local interface and port to be added to several more SMTP log
3411 lines, for example "SMTP connection from", and rejection lines.
3412
3413 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3414
341510. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3416
341711. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3418 could be overwritten at the end of the current message (or the start of a
3419 new message if it was set in a HELO ACL). The value is now preserved for
3420 the duration of the SMTP connection.
3421
342212. If a transport had a headers_rewrite setting, and a matching header line
3423 contained an unqualified address, that address was qualified, even if it
3424 did not match any rewriting rules. The underlying bug was that the values
3425 of the flags that permit the existence of unqualified sender and recipient
3426 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3427 non-local messages, and by -bnq for local messages) were not being
3428 preserved with the message after it was received.
3429
343013. When Exim was logging an SMTP synchronization error, it could sometimes log
3431 "next input=" as part of the text comprising the host identity instead of
3432 the correct text. The code was using the same buffer for two different
3433 strings. However, depending on which order the printing function evaluated
3434 its arguments, the bug did not always show up. Under Linux, for example, my
3435 test suite worked just fine.
3436
343714. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3438 doesn't work with some older versions of Perl. It has been changed to "my",
3439 which in any case is probably the better facility to use.
3440
344115. A really picky compiler found some instances of statements for creating
3442 error messages that either had too many or two few arguments for the format
3443 string.
3444
344516. The size of the buffer for calls to the DNS resolver has been increased
3446 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3447 for addresses that have a lot of PTR records. This alleviates a problem; it
3448 does not fully solve it.
3449
345017. A dnsdb lookup for PTR records that receives more data than will fit in the
3451 buffer now truncates the list and logs the incident, which is the same
3452 action as happens when Exim is looking up a host name and its aliases.
3453 Previously in this situation something unpredictable would happen;
3454 sometimes it was "internal error: store_reset failed".
3455
345618. If a server dropped the connection unexpectedly when an Exim client was
3457 using GnuTLS and trying to read a response, the client delivery process
3458 crashed while trying to generate an error log message.
3459
346019. If a "warn" verb in an ACL added multiple headers to a message in a single
3461 string, for example:
3462
3463 warn message = H1: something\nH2: something
3464
3465 the text was added as a single header line from Exim's point of view
3466 though it ended up OK in the delivered message. However, searching for the
3467 second and subsequent header lines using $h_h2: did not work. This has been
3468 fixed. Similarly, if a system filter added multiple headers in this way,
3469 the routers could not see them.
3470
347120. Expanded the error message when iplsearch is called with an invalid key to
3472 suggest using net-iplsearch in a host list.
3473
347421. When running tests using -bh, any delays imposed by "delay" modifiers in
3475 ACLs are no longer actually imposed (and a message to that effect is
3476 output).
3477
347822. If a "gecos" field in a passwd entry contained escaped characters, in
3479 particular, if it contained a \" sequence, Exim got it wrong when building
3480 a From: or a Sender: header from that name. A second bug also caused
3481 incorrect handling when an unquoted " was present following a character
3482 that needed quoting.
3483
348423. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3485 was not being matched caselessly.
3486
348724. Arranged for all hyphens in the exim.8 source to be escaped with
3488 backslashes.
3489
349025. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3491 properly. Recipient callout cache records were still being keyed to include
3492 the sender, even when use_s