Routers: make retry_use_local_part default true when any non-domain condition is...
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
40ed89b3
JH
8Exim version 4.93
9-----------------
10
8a40db1c
JH
11JH/01 OpenSSL: With debug enabled output keying information sufficient, server
12 side, to decode a TLS 1.3 packet capture.
40ed89b3 13
fc243e94 14JH/02 OpenSSL: Suppress the sending of (stateful) TLS1.3 session tickets.
d7f31bb6
JH
15 Previously the default library behaviour applied, sending two, each in
16 its own TCP segment.
17
897024f1
JH
18JH/03 Debug output for ACL now gives the config file name and line number for
19 each verb.
20
f1be21cf
JH
21JH/04 The default received_header_text now uses the RFC 8314 tls cipher clause.
22
fe12ec88
JH
23JH/05 DKIM: ensure that dkim_domain elements are lowercased before use.
24
05bf16f6
JH
25JH/06 Fix buggy handling of autoreply bounce_return_size_limit, and a possible
26 buffer overrun for (non-chunking) other transports.
27
fc243e94
JH
28JH/07 GnuTLS: Our use of late (post-handshake) certificate verification, under
29 TLS1.3, means that a server rejecting a client certificate is not visible
30 to the client until the first read of encrypted data (typically the
31 response to EHLO). Add detection for that case and treat it as a failed
32 TLS connection attempt, so that the normal retry-in-clear can work (if
33 suitably configured).
34
c05bdbd6 35JB/01 Bug 2375: fix expansions of 822 addresses having comments in local-part
e2ff8e24
JB
36 and/or domain. Found and fixed by Jason Betts.
37
14bc9cf0
JH
38JH/08 Add hardening against SRV & TLSA lookups the hit CNAMEs (a nonvalid
39 configuration). If a CNAME target was not a wellformed name pattern, a
40 crash could result.
41
254f38d1
JH
42JH/09 Logging: Fix initial listening-on line for multiple ports for an IP when
43 the OS reports them interleaved with other addresses.
44
c09dbcfb
JH
45JH/10 OpenSSL: Fix aggregation of messages. Previously, when PIPELINING was
46 used both for input and for a verify callout, both encrypted, SMTP
47 responses being sent by the server could be lost. This resulted in
48 dropped connections and sometimes bounces generated by a peer sending
49 to this system.
254f38d1 50
f9fc9427
JH
51JH/11 Harden plaintext authenticator against a badly misconfigured client-send
52 string. Previously it was possible to cause undefined behaviour in a
53 library routine (usually a crash). Found by "zerons".
54
e6024a5e
JH
55JH/12 Bug 2384: fix "-bP smtp_receive_timeout". Previously it returned no
56 output.
57
1fbf41cd
JH
58JH/13 Bug 2386: Fix builds with Dane under LibreSSL 2.9.0 onward. Some old
59 API was removed, so update to use the newer ones.
60
3c55eef2 61JH/14 Bug 1891: Close the log file if receiving a non-smtp message, without
00c0dd4e 62 any timeout set, is taking a long time. Previously we would hang on to a
3c55eef2
JH
63 rotated logfile "forever" if the input was arriving with long gaps
64 (a previous attempt to fix addressed lack, for a long time, of initial
65 input).
66
cb80814d
HSHR
67HS/01 Bug 2390: Use message_id for tempfile creation to avoid races in a
68 shared (NFS) environment. The length of the tempfile name is now
69 4 + 16 ("hdr.$message_exim_id") which might break on file
70 systems which restrict the file name length to lower values.
71 (It was "hdr.$pid".)
72
82a996b1
HSHR
73HS/01 Bug 2390: Use message_id for tempfile creation to avoid races in a
74 shared (NFS) environment.
75
76HS/02 Bug 2392: exigrep does case sensitive *option* processing (as it
77 did for all versions <4.90). Notably -M, -m, --invert, -I may be
78 affected.
79
bd83c6f9
JH
80JH/15 Use unsigned when creating bitmasks in macros, to avoid build errors
81 on some platforms for bit 31.
82
d9acfc1c
JH
83JH/16 GnuTLS: rework ciphersuite strings under recent library versions. Thanks
84 to changes apparently associated with TLS1.3 handling some of the APIs
85 previously used were either nonfunctional or inappropriate. Strings
86 like TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM__AEAD:256
87 and TLS1.2:ECDHE_SECP256R1__RSA_SHA256__AES_128_CBC__SHA256:128 replace
88 the previous TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256 .
89 This affects log line X= elements, the $tls_{in,out}_cipher variables,
90 and the use of specific cipher names in the encrypted= ACL condition.
91
b10c87b3
JH
92JH/17 OpenSSL: the default openssl_options now disables ssl_v3.
93
7a501c87
JH
94JH/18 GnuTLS: fix $tls_out_ocsp under hosts_request_ocsp. Previously the
95 verification result was not updated unless hosts_require_ocsp applied.
96
e5903596
JH
97JH/19 Bug 2398: fix listing of a named-queue. Previously, even with the option
98 queue_list_requires_admin set to false, non-admin users were denied the
99 facility.
100
12d95aa6
JH
101JH/20 Bug 2389: fix server advertising of usable certificates, under GnuTLS in
102 directory-of-certs mode. Previously they were advertised despite the
103 documentation.
104
96eb7d2a
JH
105JH/21 The smtp transport option "hosts_noproxy_tls" is now unset by default.
106 A single TCP connection by a client will now hold a TLS connection open
107 for multiple message deliveries, by default. Previoud the default was to
108 not do so.
109
59c0959a 110JH/22 The smtp transport option "hosts_try_dane" now enables all hosts by
01603eec
JH
111 default. If built with the facility, DANE will be used. The facility
112 SUPPORT_DANE is now enabled in the prototype build Makefile "EDITME".
113
114JH/23 The build default is now for TLS to be included; the SUPPORT_TLS define
de517fd3
JH
115 is replaced with DISABLE_TLS. Either USE_GNUTLS or (the new) USE_OPENSSL
116 must be defined and you must still, unless you define DISABLE_TLS, manage
117 the the include-dir and library-file requirements that go with that
118 choice. Non-TLS builds are still supported.
59c0959a 119
48519cef
JH
120JH/24 Fix duplicated logging of peer name/address, on a transport connection-
121 reject under TFO.
96eb7d2a 122
efad2f41 123JH/25 The smtp transport option "hosts_try_fastopen" now enables all hosts by
4e48d56c 124 default. If the platform supports and has the facility enabled, it will
efad2f41
JH
125 be requested on all coneections.
126
4e48d56c
JH
127JH/26 The PIPE_CONNECT facility is promoted from experimental status and is now
128 controlled by the build-time option SUPPORT_PIPE_CONNECT.
129
6ee11061 130PP/01 Unbreak heimdal_gssapi, broken in 4.92.
0a5441fc 131
87abcb24
JH
132JH/27 Bug 2404: Use the main-section configuration option "dsn_from" for
133 success-DSN messages. Previously the From: header was always the default
134 one for these; the option was ignored.
6ee11061 135
0a5441fc
JH
136JH/28 Fix the timeout on smtp response to apply to the whole response.
137 Previously it was reset for every read, so a teergrubing peer sending
138 single bytes within the time limit could extend the connection for a
139 long time. Credit to Qualsys Security Advisory Team for the discovery.
140
436bda2a
JH
141JH/29 Fix DSN Final-Recipient: field. Previously it was the post-routing
142 delivery address, which leaked information of the results of local
143 forwarding. Change to the original envelope recipient address, per
144 standards.
145
df98a6ff
JH
146JH/30 Bug 2411: Fix DSN generation when RFC 3461 failure notification is
147 requested. Previously not bounce was generated and a log entry of
148 error ignored was made.
149
21aa0597
JH
150JH/31 Avoid re-expansion in ${sort } expansion. (CVE-2019-13917)
151
f3ebb786
JH
152JH/32 Introduce a general tainting mechanism for values read from the input
153 channel, and values derived from them. Refuse to expand any tainted
154 values, to catch one form of exploit.
155
9fa4d5b4
RJ
156JH/33 Bug 2413: Fix dkim_strict option. Previously the expansion result
157 was unused and the unexpanded text used for the test. Found and
158 fixed by Ruben Jenster.
159
bd231acd
JH
160JH/34 Fix crash after TLS shutdown. When the TCP/SMTP channel was left open,
161 an attempt to use a TLS library read routine dereffed a nul pointer,
162 causing a segfault.
163
7b564712
JH
164JH/35 Bug 2409: filter out-of-spec chars from callout response before using
165 them in our smtp response.
166
dbbf21a7
JH
167JH/35 Have the general router option retry_use_local_part default to true when
168 any of the restrictive preconditions are set (to anything). Previously it
169 was only for check_local user. The change removes one item of manual
170 configuration which is required for proper retries when a remote router
171 handles a subset of addresses for a domain.
172
40ed89b3 173
d99f54e4
JH
174Exim version 4.92
175-----------------
176
9723f966
JH
177JH/01 Remove code calling the customisable local_scan function, unless a new
178 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
179
180JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
JH
181 non-signal-safe functions being used.
182
183JH/03 Bug 2269: When presented with a received message having a stupidly large
184 number of DKIM-Signature headers, disable DKIM verification to avoid
185 a resource-consumption attack. The limit is set at twenty.
9723f966 186
ea7b1f16
JH
187JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
188 report of oldest_pass in ${authres } in consequence, and separate out
189 some descriptions of reasons for verification fail.
190
cfbb0d24
JH
191JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
192 files in the spool were present and unlocked. A queue-runner could spot
193 them, resulting in a duplicate delivery. Fix that by doing the unlock
0488984d
JH
194 after the unlink. Investigation by Tim Stewart. Take the opportunity to
195 add more error-checking on spoolfile handling while that code is being
cfbb0d24
JH
196 messed with.
197
85defcf0
PP
198PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
199 No known attacks, no CVE, this is defensive hardening.
200
1bd642c2
JH
201JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
202 a queue-runner could start a delivery while other operations were ongoing.
203 Cutthrough delivery was a common victim, resulting in duplicate delivery.
204 Found and investigated by Tim Stewart. Fix by using the open message data
205 file handle rather than opening another, and not locally closing it (which
206 releases a lock) for that case, while creating the temporary .eml format
207 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
208
2ddb4094
JH
209JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
210 $sender_verify_failure/$recipient_verify_failure to "random".
211
1613fd68
JH
212JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
213 legitimate.
214
e6057245
JH
215JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
216 Previously this would segfault.
217
7b9822bf
JH
218JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
219 segfault.
220
d8d9f930
JH
221JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
222 like zero, since the resolver should be doing this for us, But we need one
223 as a CNAME but no MX presence gets the CNAME returned; we need to check
224 that doesn't point to an MX to declare it "no MX returned" rather than
225 "error, loop". A new main option is added so the older capability of
226 following some limited number of chain links is maintained.
227
61e3f250
JH
228JH/12 Add client-ip info to non-pass iprev ${authres } lines.
229
7a8b9519
JH
230JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
231 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
232 now-deprecated earlier definitions used only specified the range up to TLS
233 1.2 (in the older-version library docs).
234
49e56fb3
JH
235JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
236
74f1a423
JH
237JH/15 Rework TLS client-side context management. Stop using a global, and
238 explicitly pass a context around. This enables future use of TLS for
239 connections to service-daemons (eg. malware scanning) while a client smtp
240 connection is using TLS; with cutthrough connections this is quite likely.
241
5054c4fd 242JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
JH
243
244JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 245
946515bf
JH
246JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
247 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
248 Previously the "utf8" would be re-prepended for every additional message.
249
8c34c611
JH
250JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
251 Previously thery were accepted, resulting in issues when attempting to
252 forward messages to a non-supporting MTA.
253
1bca4f5f
PP
254PP/02 Let -n work with printing macros too, not just options.
255
8a6b4e02
JH
256JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
257 one parent address was copied, and bogus data was used at delivery-logging
258 time. Either a crash (after delivery) or bogus log data could result.
259 Discovery and analysis by Tim Stewart.
260
0a682b6c
PP
261PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
262 Previously if the string ended mid-character, we did not insert the
263 promised '?' replacement.
264
c2c451ac
PP
265PP/04 Documentation: current string operators work on bytes, not codepoints.
266
8768d548
JH
267JH/21 Change as many as possible of the global flags into one-bit bitfields; these
268 should pack well giving a smaller memory footprint so better caching and
269 therefore performance. Group the declarations where this can't be done so
270 that the byte-sized flag variables are not interspersed among pointer
271 variables, giving a better chance of good packing by the compiler.
272
5455f548
JH
273JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
274 non-null, to avoid issues with sites running BATV. Previously reports were
275 sent with an empty envelope sender so looked like bounces.
276
25beaee4
MK
277JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
278 The ignore_error flag wasn't being returned from the filter subprocess so
279 was not set for later routers. Investigation and fix by Matthias Kurz.
280
7ea1237c 281JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 282 and a msg:complete for the whole, when a message is manually removed using
7ea1237c
MK
283 -Mrm. Developement by Matthias Kurz, hacked on by JH.
284
ebda598a
JH
285JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
286 a "Gnu special" function, asprintf() in the DB utility binary builds; I
287 hope that is portable enough.
288
570cb1bd
JH
289JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
290 requiring a known-CA anchor certificate; make it now rely entirely on the
291 TLSA as an anchor. Checking the name on the leaf cert against the name
292 on the A-record for the host is still done for TA (but not for EE mode).
293
eb58ddf5
JH
294JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
295 included in delivery lines for non-proxied connections, when compiled with
296 SUPPORT_SOCKS and running with proxy logging enabled.
297
ffbc20ed
MK
298JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
299 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
300 move the existing event to fire before the normal logging of message
301 failure so that custom logging is bracketed by normal logging.
302
4e928780
MK
303JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
304 msg:fail:internal event. Developement by Matthias Kurz.
305
75c121f0 306JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 307 far too small for todays use of crypto signatures stored there. Go all
75c121f0
JH
308 the way to the max DNS message size of 64kB, even though this might be
309 overmuch for IOT constrained device use.
310
e30f4f43
JH
311JH/31 Fix a bad use of a copy function, which could be used to pointlessly
312 copy a string over itself. The library routine is documented as not
313 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
314
a45431fa
JH
315JH/32 For main options check_spool_space and check_inode_space, where the
316 platform supports 64b integers, support more than the previous 2^31 kB
317 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
318 the previous G, M, k.
319
c0fb53b7
JH
320JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
321 $authenticated_fail_id variable on authentication failure. Previously
322 it was unset.
323
6aac3239
JH
324JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
325 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
326 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
327 GNUTLS_SEC_PARAM_MEDIUM.
328
5a2a0989
JH
329JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
330 side. Previously we would continue as if no SNI had been received.
331
de6f74f2 332JH/36 Harden the handling of string-lists. When a list consisted of a sole
b72f857f
JH
333 "<" character, which should be a list-separator specification, we walked
334 off past the nul-terimation.
335
de6f74f2
JH
336JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
337 causes) even when the retry time is not yet met. Previously they were
338 not, meaning that when (say) an account was over-quota and temp-rejecting,
339 and multiple senders' messages were queued, only one sender would get
340 notified on each configured delay_warning cycle.
341
aa6e77af 342JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 343
25fa0868
JH
344JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
345 cipher-suites, an error can be left on the stack even for a succeeding
346 accept; this results in impossible error messages when a later operation
347 actually does fail.
348
cb6bd80f
JH
349AM/01 Bug 2359: GnuTLS: repeat lowlevel read and write operations while they
350 return error codes indicating retry. Under TLS1.3 this becomes required.
351
352JH/40 Fix the feature-cache refresh for EXPERIMENTAL_PIPE_CONNECT. Previously
353 it only wrote the new authenticators, resulting in a lack of tracking of
354 peer changes of ESMTP extensions until the next cache flush.
518b70e9 355
56ac062a
JH
356JH/41 Fix the loop reading a message header line to check for integer overflow,
357 and more-often against header_maxsize. Previously a crafted message could
358 induce a crash of the recive process; now the message is cleanly rejected.
359
ae63862b
MA
360JH/42 Bug 2366: Fix the behaviour of the dkim_verify_signers option. It had
361 been totally disabled for all of 4.91. Discovery and fix by "Mad Alex".
362
9723f966 363
bb264f6b
JH
364Exim version 4.91
365-----------------
459fca58 366
c39c8870 367GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
JH
368 When redis_servers is set to a list of > 1 element, and the Redis servers
369 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
370 case of MOVED into a DEFER case instead, thus moving the query onto the
371 next server in the list. For a cluster of N elements, all N servers must
372 be defined in redis_servers.
c39c8870 373
0800ef83
GF
374GF/02 Catch and remove uninitialized value warning in exiqsumm
375 Check for existence of @ARGV before looking at $ARGV[0]
376
459fca58
JH
377JH/01 Replace the store_release() internal interface with store_newblock(),
378 which internalises the check required to safely use the old one, plus
379 the allocate and data copy operations duplicated in both (!) of the
380 extant use locations.
381
944e8b37
JH
382JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
383 modifier. This matches the restriction on the commandline.
384
bbfb5dcd
JH
385JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
386 Previously only the last row was returned.
387
a05d3e34
JH
388JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
389 we assumed that tags in the header were well-formed, and parsed the
390 element content after inspecting only the first char of the tag.
391 Assumptions at that stage could crash the receive process on malformed
392 input.
393
ce93c6d8
JH
394JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
395 While running the DKIM ACL we operate on the Permanent memory pool so that
396 variables created with "set" persist to the DATA ACL. Also (at any time)
397 DNS lookups that fail create cache records using the Permanent pool. But
398 expansions release any allocations made on the current pool - so a dnsdb
399 lookup expansion done in the DKIM ACL releases the memory used for the
400 DNS negative-cache, and bad things result. Solution is to switch to the
401 Main pool for expansions.
402 While we're in that code, add checks on the DNS cache during store_reset,
403 active in the testsuite.
404 Problem spotted, and debugging aided, by Wolfgang Breyha.
405
2577f55f
JH
406JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
407 When none of the hosts presented to a transport match an already-open
408 connection, close it and proceed with the list. Previously we would
409 queue the message. Spotted by Lena with Yahoo, probably involving
410 round-robin DNS.
411
5b6f7658
JH
412JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
413 Previously a spurious "250 OK id=" response was appended to the proper
414 failure response.
415
c11d665d
JH
416JH/08 The "support for" informational output now, which built with Content
417 Scanning support, has a line for the malware scanner interfaces compiled
418 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
419
420JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
421 by the template makefile "src/EDITME". The "STREAM" support for an older
422 ClamAV interface method is removed.
c11d665d 423
ba0e37b1
JH
424JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
425 rows affected is given instead).
426
96508de1
JH
427JH/11 The runtime Berkeley DB library version is now additionally output by
428 "exim -d -bV". Previously only the compile-time version was shown.
429
06fdb9f7
JH
430JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
431 SMTP connection. Previously, when one had more receipients than the
432 first, an abortive onward connection was made. Move to full support for
433 multiple onward connections in sequence, handling cutthrough connection
434 for all multi-message initiating connections.
435
f83a760f
JH
436JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
437 routers. Previously, a multi-recipient message would fail to match the
438 onward-connection opened for the first recipient, and cause its closure.
439
f1fed05b
JH
440JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
441 a timeout on read on a GnuTLS initiating connection, resulting in the
442 initiating connection being dropped. This mattered most when the callout
443 was marked defer_ok. Fix to keep the two timeout-detection methods
444 separate.
445
051d5efa
JH
446JH/15 Relax results from ACL control request to enable cutthrough, in
447 unsupported situations, from error to silently (except under debug)
448 ignoring. This covers use with PRDR, frozen messages, queue-only and
449 fake-reject.
450
cf3cd306
HSHR
451HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
452
744976d4
JH
453JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
454 metadata, resulting in a crash in free().
455
aab9a843 456PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 457 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 458 Broken also in d185889f4, with init system revamp.
7be14582 459
83d2a861
JH
460JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
461 Previously we abruptly closed the connection after reading a malware-
462 found indication; now we go on to read the "scan ok" response line,
463 and send a quit.
464
6741531c
JH
465JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
466 ACL. Previously, a crash would result.
467
85e03244
JH
468JH/19 Speed up macro lookups during configuration file read, by skipping non-
469 macro text after a replacement (previously it was only once per line) and
470 by skipping builtin macros when searching for an uppercase lead character.
471
c0635b6d
JH
472JH/20 DANE support moved from Experimental to mainline. The Makefile control
473 for the build is renamed.
474
b808677c
JH
475JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
476 was allocated for every new TLS startup, meaning one per message. Fix
477 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
478
6678c382
JH
479JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
480 reported the original. Fix to report (as far as possible) the ACL
481 result replacing the original.
482
dec766a1
WB
483JH/23 Fix memory leak during multi-message connections using STARTTLS under
484 OpenSSL. Certificate information is loaded for every new TLS startup,
485 and the resources needed to be freed.
486
15ae19f9
JH
487JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
488
e6532c4a
JH
489JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
490 was not propagated.
491
2556b3c6
SA
492JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
493 DATA response info to the (existing) per-recipient response info for
494 the "C=" log element. It can have useful tracking info from the
495 destination system. Patch from Simon Arlott.
496
fc8cd529
JH
497JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
498 length value. Previously this would segfault.
499
71bb51e0
HSHR
500HS/02 Support Avast multiline protoocol, this allows passing flags to
501 newer versions of the scanner.
502
e04bfa34
JH
503JH/28 Ensure that variables possibly set during message acceptance are marked
504 dead before release of memory in the daemon loop. This stops complaints
505 about them when the debug_store option is enabled. Discovered specifically
506 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
507 Do the same for the queue-runner and queue-list loops, for variables set
508 from spool message files. Do the same for the SMTP per-message loop, for
509 certain variables indirectly set in ACL operations.
e04bfa34 510
ecce6d9a
JH
511JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
512 as a multi-recipient message from a mailinglist manager). The coding had
513 an arbitrary cutoff number of characters while checking for more input;
514 enforced by writing a NUL into the buffer. This corrupted long / fast
515 input. The problem was exposed more widely when more pipelineing of SMTP
516 responses was introduced, and one Exim system was feeding another.
517 The symptom is log complaints of SMTP syntax error (NUL chars) on the
518 receiving system, and refused recipients seen by the sending system
519 (propating to people being dropped from mailing lists).
520 Discovered and pinpointed by David Carter.
521
c9cf9ac4
JH
522JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
523 replaced by the ${authresults } expansion.
524
b3b37076
JH
525JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
526
830832c9
HSHR
527HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
528 allows proper process termination in container environments.
529
f64e8b5f
JH
530JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
531 Previously the "final dot" had a newline after it; ensure it is CR,LF.
532
8f0776b5
JH
533JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
534 and "err_perm", deprecated since 4.83 when the RFC-defined words
535 "temperror" and "permerror" were introduced.
536
857eaf37
JH
537JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
538 transport-filters or DKIM-signing. The restriction was lost in the
539 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 540 Extend the restriction to also cover ARC-signing.
857eaf37 541
c85476e9
JH
542JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
543 in defer=pass mode supply a 450 to the initiator. Previously the message
544 would be spooled.
545
405074ad
PP
546PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
547 tls_require_ciphers is used as before.
548
eb445b04
HSHR
549HS/03 Malware Avast: Better match the Avast multiline protocol. Add
550 "pass_unscanned". Only tmpfails from the scanner are written to
551 the paniclog, as they may require admin intervention (permission
552 denied, license issues). Other scanner errors (like decompression
553 bombs) do not cause a paniclog entry.
ad93c40f 554
d342446f
JH
555JH/36 Fix reinitialisation of DKIM logging variable between messages.
556 Previously it was possible to log spurious information in receive log
557 lines.
558
a28050f8
JH
559JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
560 triggered odd behaviour from Outlook Express clients.
561
ddd16464
PP
562PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
563 suffix list.
564
321ef002
JH
565JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
566 since the IETF WG has not yet settled on that versus the original
567 "bare" representation.
568
3203e7ba
JH
569JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
570 Previously the millisecond value corrupted the output.
571 Fix also for syslog_pid=no and log_selector +pid, for which the pid
572 corrupted the output.
573
bbfb5dcd 574
acfc18c3
PP
575Exim version 4.90
576-----------------
577
578JH/01 Rework error string handling in TLS interface so that the caller in
579 more cases is responsible for logging. This permits library-sourced
580 string to be attached to addresses during delivery, and collapses
581 pairs of long lines into single ones.
582
856d1e16
PP
583PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
584 during configuration. Wildcards are allowed and expanded.
585
b9df1829
JH
586JH/02 Rework error string handling in DKIM to pass more info back to callers.
587 This permits better logging.
588
875512a3
JH
589JH/03 Rework the transport continued-connection mechanism: when TLS is active,
590 do not close it down and have the child transport start it up again on
591 the passed-on TCP connection. Instead, proxy the child (and any
592 subsequent ones) for TLS via a unix-domain socket channel. Logging is
593 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 594 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 595
fc3f96af
JH
596JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
597 identical IP addresses on different listening ports. Will also affect
598 "exiwhat" output.
599
98913c8e
BK
600PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
601 add noisy ifdef guards to special-case this sillyness.
602 Patch from Bernd Kuhls.
603
8d909960
JH
604JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
605 than 255 are no longer allowed.
606
7006ee24
JH
607JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
608 Disable the session-cache too, which might reduce our load. Since we
609 currrectly use a new context for every connection, both as server and
610 client, there is no benefit for these.
611 GnuTLS appears to not support tickets server-side by default (we don't
612 call gnutls_session_ticket_enable_server()) but client side is enabled
613 by default on recent versions (3.1.3 +) unless the PFS priority string
614 is used (3.2.4 +).
615
6e411084
PP
616PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
617 <https://reproducible-builds.org/specs/source-date-epoch/>.
618
4c2471ca
JH
619JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
620 the check for any unsuccessful recipients did not notice the limit, and
621 erroneously found still-pending ones.
622
4e910c01
JH
623JH/08 Pipeline CHUNKING command and data together, on kernels that support
624 MSG_MORE. Only in-clear (not on TLS connections).
625
42055a33
JH
626JH/09 Avoid using a temporary file during transport using dkim. Unless a
627 transport-filter is involved we can buffer the headers in memory for
628 creating the signature, and read the spool data file once for the
629 signature and again for transmission.
630
eeb35890
JH
631JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
632 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 633 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 634
b7d3afcf
JH
635JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
636 case where the routing stage had gathered several addresses to send to
637 a host before calling the transport for the first, we previously failed
638 to close down TLS in the old transport process before passing the TCP
639 connection to the new process. The new one sent a STARTTLS command
640 which naturally failed, giving a failed delivery and bloating the retry
641 database. Investigation and fix prototype from Wolfgang Breyha.
642
40525d07
JH
643JH/12 Fix check on SMTP command input synchronisation. Previously there were
644 false-negatives in the check that the sender had not preempted a response
645 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 646 awareness of the SMTP input buffering.
40525d07 647
f33875c3
PP
648PP/04 Add commandline_checks_require_admin option.
649 Exim drops privileges sanely, various checks such as -be aren't a
650 security problem, as long as you trust local users with access to their
651 own account. When invoked by services which pass untrusted data to
652 Exim, this might be an issue. Set this option in main configuration
653 AND make fixes to the calling application, such as using `--` to stop
654 processing options.
655
a5ffa9b4
JH
656JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
657 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
658 responses to those, into a single TLS record each way (this usually means
659 a single packet). As a side issue, smtp_enforce_sync now works on TLS
660 connections.
925ac8e4 661
6600985a
PP
662PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
663 affects you only if you're dancing at the edge of the param size limits.
664 If you are, and this message makes sense to you, then: raise the
665 configured limit or use OpenSSL 1.1. Nothing we can do for older
666 versions.
667
ac4d558b
JH
668JH/14 For the "sock" variant of the malware scanner interface, accept an empty
669 cmdline element to get the documented default one. Previously it was
670 inaccessible.
671
e69636bc
JH
672JH/15 Fix a crash in the smtp transport caused when two hosts in succession
673 are unsuable for non-message-specific reasons - eg. connection timeout,
674 banner-time rejection.
675
a843a57e
JH
676JH/16 Fix logging of delivery remote port, when specified by router, under
677 callout/hold.
678
8e041ae0
PP
679PP/06 Repair manualroute's ability to take options in any order, even if one
680 is the name of a transport.
833c70bc
PP
681 Fixes bug 2140.
682
35a04365
HSHR
683HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
684
4226691b
JH
685JH/17 Change the list-building routines interface to use the expanding-string
686 triplet model, for better allocation and copying behaviour.
687
d185889f
JH
688JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
689 Previously it was constructed the first time a possibly-matching string
690 was met in the configuration file input during startup; now it is done
691 during compilation.
692
0a6c178c
JH
693JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
694 compatible one, to avoid the (poorly documented) possibility of a config
695 file in the working directory redirecting the DB files, possibly correpting
02745400 696 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 697
fae8970d
JH
698JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
699 cache-hot. Previously, although the result was properly cached, the
700 initial verify call returned a defer.
701
ad1a76fe 702JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
703 the main verify for receipient in uncached-mode.
704
ad1a76fe
JH
705JH/22 Retire historical build files to an "unsupported" subdir. These are
706 defined as "ones for which we have no current evidence of testing".
707
135e9496
JH
708JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
709 if present. Previously it was ignored.
710
f2ed27cf
JH
711JH/24 Start using specified-initialisers in C structure init coding. This is
712 a C99 feature (it's 2017, so now considered safe).
713
7eb0e5d2
JH
714JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
715 if was a fixed-sized field and bitmask ops via macros; it is now more
716 extensible.
717
4f9f4be4
718PP/07 GitHub PR 56: Apply MariaDB build fix.
719 Patch provided by Jaroslav Škarvada.
720
dc4de9cc
PP
721PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
722 during Coverity cleanups [4.87 JH/47]
723 Diagnosis and fix provided by Michael Fischer v. Mollard.
724
ea18931d
JH
725JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
726 the right size to place the terminating semicolon on its own folded
727 line, the header hash was calculated to an incorrect value thanks to
728 the (relaxed) space the fold became.
729
0768462d 730HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
731 and confused the parent.
732
848214f7
JH
733JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
734 which could crash as a result. This could lead to undeliverable messages.
735
9e0ed81f
JH
736JH/28 Logging: "next input sent too soon" now shows where input was truncated
737 for log purposes.
738
2540f2f8
JH
739JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
740 matters on fast-turnover and PID-randomising systems, which were getting
741 out-of-order delivery.
742
e5ab0ba9
JH
743JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
744 a possibly-overlapping copy. The symptom was that "Remote host closed
745 connection in response to HELO" was logged instead of the actual 4xx
746 error for the HELO.
747
e99a3a6c
JH
748JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
749 Previously only that bufferd was discarded, resulting in SYMTP command
750 desynchronisation.
751
18067c75
JH
752JH/32 DKIM: when a message has multiple signatures matching an identity given
753 in dkim_verify_signers, run the dkim acl once for each. Previously only
754 one run was done. Bug 2189.
755
72934ba7
JH
756JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
757 "panic the current process" to "deliberately defer". The panic log is
758 still written with the problem list name; the mail and reject logs now
759 get a temp-reject line for the message that was being handled, saying
760 something like "domains check lookup or other defer". The SMTP 451
761 message is still "Temporary local problem".
762
625667b6
JH
763JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
764 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
765 freed. CVE-2017-16943.
766
767HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
768 from SMTP input. Previously it was always done; now only done for DATA
769 and not BDAT commands. CVE-2017-16944.
625667b6 770
d21bf202
JH
771JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
772 to the message (such as an overlong header line). Previously this was
773 not done and we did not exit BDAT mode. Followon from the previous item
774 though a different problem.
775
acfc18c3 776
fd047340 777Exim version 4.89
acfc18c3 778-----------------
4c57a40e 779
9427e879 780JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 781 than -2003 did; needs libidn2 in addition to libidn.
fd047340 782
7b283890
JH
783JH/02 The path option on a pipe transport is now expanded before use.
784
4c57a40e
PP
785PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
786 Patch provided by "Björn", documentation fix added too.
787
5d036699
JH
788JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
789 missing a wire-to-host endian conversion.
790
f4630439
JH
791JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
792 close after a BDAT command line could be taken as a following command,
793 giving a synch failure. Fix by only checking for synch immediately
794 before acknowledging the chunk.
795
f988ce57
JS
796PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
797 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
798 macro. Patches provided by Josh Soref.
799
bd8fbe36
JH
800JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
801 Previously we did not; the RFC seems ambiguous and VRFY is not listed
802 by IANA as a service extension. However, John Klensin suggests that we
803 should.
804
805JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
806 the dkim code may be unix-mode line endings rather than smtp wire-format
807 CRLF, so prepend a CR to any bare LF.
fd047340 808
bd8fbe36 809JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
810 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
811
bd8fbe36
JH
812JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
813 the first were themselves being wrongly included in the feed into dkim
814 processing; with most chunk sizes in use this resulted in an incorrect
815 body hash calculated value.
816
eea19017
JH
817JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
818 DKIM signature block, for verification. Although advised against by
819 standards it is specifically not ruled illegal.
820
44e6651b
JH
821JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
822
823JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
824 missing a body hash (the bh= tag).
825
826JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
827 It seems that HAProxy sends the Proxy Protocol information in clear and
828 only then does a TLS startup, so do the same.
829
830JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
831 TCP connections (such as for Spamd) unless the daemon successfully set
832 Fast Open mode on its listening sockets. This fixes breakage seen on
833 too-old kernels or those not configured for Fast Open, at the cost of
834 requiring both directions being enabled for TFO, and TFO never being used
835 by non-daemon-related Exim processes.
836
837JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
838 endings, at least on the first header line. Try to canonify any that get
839 past that check, despite the cost.
840
b6040544
JH
841JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
842 now limited to an arbitrary five deep, while parsing addresses with the
843 strip_excess_angle_brackets option enabled.
844
f700ea4d
PP
845PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
846 instead leave the unprompted TLS handshake in socket buffer for the
847 TLS library to consume.
848
da88acae
PP
849PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
850
f6ef9370
PP
851PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
852
90341c71
JH
853JH/16 Drop variables when they go out of scope. Memory management drops a whole
854 region in one operation, for speed, and this leaves assigned pointers
855 dangling. Add checks run only under the testsuite which checks all
856 variables at a store-reset and panics on a dangling pointer; add code
857 explicitly nulling out all the variables discovered. Fixes one known
858 bug: a transport crash, where a dangling pointer for $sending_ip_address
859 originally assigned in a verify callout, is re-used.
860
1ec2ab36
PP
861PP/06 Drop '.' from @INC in various Perl scripts.
862
863PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
864
865PP/08 Reduce a number of compilation warnings under clang; building with
866 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
867 should be warning-free.
868
8b2b9480
PP
869JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
870
871HS/01 Fix portability problems introduced by PP/08 for platforms where
872 realloc(NULL) is not equivalent to malloc() [SunOS et al].
873
d953610f
HSHR
874HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
875 chunk. This allows us to accept broken chunked messages. We need a more
876 general solution here.
877
7dc5f827
PP
878PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
879 already-broken messages in the queue.
880
4bb432cb
PP
881JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
882
3b1a84c8
PP
883JH/19 Fix reference counting bug in routing-generated-address tracking.
884
902fbd69 885
8d042305
JH
886Exim version 4.88
887-----------------
4c57a40e 888
9094b84b
JH
889JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
890 supports it and a size is available (ie. the sending peer gave us one).
8d042305 891
03d5892b
JH
892JH/02 The obsolete acl condition "demime" is removed (finally, after ten
893 years of being deprecated). The replacements are the ACLs
894 acl_smtp_mime and acl_not_smtp_mime.
895
4b0fe319
JH
896JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
897 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
898 or even an in-clear connection were permitted. Now, if the host lookup
899 was dnssec and dane was requested then the host is only used if the
900 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
901 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
902 if one fails this test.
903 This means that a poorly-configured remote DNS will make it incommunicado;
904 but it protects against a DNS-interception attack on it.
905
789f8a4f
JH
906JH/04 Bug 1810: make continued-use of an open smtp transport connection
907 non-noisy when a race steals the message being considered.
908
23bb6982 909JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 910 self-signed certificate for inbound TLS connections.
23bb6982 911
0bd1b1ed 912JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 913 in rewrites and routers.
0bd1b1ed 914
20b9a2dc
JH
915JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
916 and logged a warning sing 4.83; now they are a configuration file error.
917
05392bbc
JH
918JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
919 (lacking @domain). Apply the same qualification processing as RCPT.
920
1a6230a3
JH
921JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
922
cfab9d68
JH
923JH/10 Support ${sha256:} applied to a string (as well as the previous
924 certificate).
925
98c82a3d
JH
926JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
927 a cutthrough deliver is pending, as we always want to make a connection.
928 This also avoids re-routing the message when later placing the cutthrough
929 connection after a verify cache hit.
930 Do not update it with the verify result either.
931
932JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
933 when routing results in more than one destination address.
934
ae8386f0
JH
935JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
936 signing (which inhibits the cutthrough capability). Previously only
937 the presence of an option was tested; now an expansion evaluating as
938 empty is permissible (obviously it should depend only on data available
939 when the cutthrough connection is made).
940
0d9fa8c0
JH
941JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
942 the relevant preceding SMTP command did not note the pipelining mode.
943
3581f321
JH
944JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
945 Previously they were not counted.
946
ef3a1a30
JH
947JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
948 as one having no matching records. Previously we deferred the message
949 that needed the lookup.
950
4c04137d 951JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
952 distinguished as "(=".
953
1435d4b2
JH
954JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
955 for missing MX records. Previously it only worked for missing A records.
956
eea0defe
JB
957JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
958
959JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
960 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 961
4c04137d 962JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
963 even for a "none" policy. Patch from Tony Meyer.
964
1c788856
JH
965JH/22 Fix continued use of a connection for further deliveries. If a port was
966 specified by a router, it must also match for the delivery to be
967 compatible.
968
e3b1f624
JH
969JH/23 Bug 1874: fix continued use of a connection for further deliveries.
970 When one of the recipients of a message was unsuitable for the connection
971 (has no matching addresses), we lost track of needing to mark it
972 deferred. As a result mail would be lost.
973
a57ce043
JH
974JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
975
f59aaaaa 976JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
977 takes up less space and should be simpler to maintain. Merge the ACL
978 condition decode tables also, with similar effect.
d7bed771 979
d1f9fb42
JH
980JH/26 Fix problem with one_time used on a redirect router which returned the
981 parent address unchanged. A retry would see the parent address marked as
982 delivered, so not attempt the (identical) child. As a result mail would
983 be lost.
984
92b0827a
JH
985JH/27 Fix a possible security hole, wherein a process operating with the Exim
986 UID can gain a root shell. Credit to http://www.halfdog.net/ for
987 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
988 itself :(
989
ddf1b11a
JH
990JH/28 Enable {spool,log} filesystem space and inode checks as default.
991 Main config options check_{log,spool}_{inodes,space} are now
992 100 inodes, 10MB unless set otherwise in the configuration.
993
3cc3f762
JH
994JH/29 Fix the connection_reject log selector to apply to the connect ACL.
995 Previously it only applied to the main-section connection policy
996 options.
997
ae5afa61
JH
998JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
999
317e40ac
PP
1000PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
1001 by me. Added RFC7919 DH primes as an alternative.
1002
8b0fb68e
PP
1003PP/02 Unbreak build via pkg-config with new hash support when crypto headers
1004 are not in the system include path.
1005
ad7fc6eb 1006JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 1007 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
1008 Exim did stdio operations after fclose. This was exposed by a recent
1009 change which nulled out the file handle after the fclose.
ad7fc6eb 1010
ee5b1e28
JH
1011JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
1012 signed directly by the cert-signing cert, rather than an intermediate
1013 OCSP-signing cert. This is the model used by LetsEncrypt.
1014
5ddc9771
JH
1015JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
1016
8d73599f
JH
1017HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
1018 an incoming connection.
1019
446415f5
HSHR
1020HS/02 Bug 1802: Do not half-close the connection after sending a request
1021 to rspamd.
1022
8e53a4fc
HSHR
1023HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
1024 fallback to "prime256v1".
8d042305 1025
87cb4a16 1026JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 1027 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
1028
1029
0d9b78be
JH
1030Exim version 4.87
1031-----------------
4c57a40e 1032
82d14d6a
JH
1033JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
1034 and 3.4.4 - once the server is enabled to respond to an OCSP request
1035 it does even when not requested, resulting in a stapling non-aware
1036 client dropping the TLS connection.
0d9b78be 1037
6c6d6e48
TF
1038TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
1039 support variable-length bit vectors. No functional change.
1040
ac881e27
TF
1041TF/02 Improve the consistency of logging incoming and outgoing interfaces.
1042 The I= interface field on outgoing lines is now after the H= remote
1043 host field, same as incoming lines. There is a separate
1044 outgoing_interface log selector which allows you to disable the
1045 outgoing I= field.
1046
c8899c20
JH
1047JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
1048 If not running log_selector +smtp_connection the mainlog would be held
1049 open indefinitely after a "too many connections" event, including to a
1050 deleted file after a log rotate. Leave the per net connection logging
1051 leaving it open for efficiency as that will be quickly detected by the
1052 check on the next write.
1053
f1b81d81
HSHR
1054HS/01 Bug 1671: Fix post transport crash.
1055 Processing the wait-<transport> messages could crash the delivery
1056 process if the message IDs didn't exist for some reason. When
1057 using 'split_spool_directory=yes' the construction of the spool
1058 file name failed already, exposing the same netto behaviour.
1059
f38917cc
JH
1060JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
1061 mime_regex ACL conditions.
1062
895fbaf2
JH
1063JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
1064 to DSN fail messages (bounces): remote IP, remote greeting, remote response
1065 to HELO, local diagnostic string.
1066
805bb5c3
JH
1067JH/05 Downgrade message for a TLS-certificate-based authentication fail from
1068 log line to debug. Even when configured with a tls authenticator many
1069 client connections are expected to not authenticate in this way, so
1070 an authenticate fail is not an error.
1071
56c2a7be
HSHR
1072HS/02 Add the Exim version string to the process info. This way exiwhat
1073 gives some more detail about the running daemon.
1074
4c04137d 1075JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
1076 matter for fast-change records such as DNSBLs.
1077
6f6dedcc
JH
1078JH/07 Bug 1678: Always record an interface option value, if set, as part of a
1079 retry record, even if constant. There may be multiple transports with
1080 different interface settings and the retry behaviour needs to be kept
1081 distinct.
1082
0f557e90
JH
1083JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
1084
1085JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
1086
ec0eb1a3
JH
1087JH/10 Bug 840: fix log_defer_output option of pipe transport
1088
41e93589
JH
1089JH/11 Bug 830: use same host for all RCPTS of a message, even under
1090 hosts_randomize. This matters a lot when combined with mua_wrapper.
1091
98b98887 1092JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
1093 ${quote_pgsql:<string>} operator.
1094
98b98887
JH
1095JH/13 Bug 1708: avoid misaligned access in cached lookup.
1096
858e91c2
JH
1097JH/14 Change header file name for freeradius-client. Relevant if compiling
1098 with Radius support; from the Gentoo tree and checked under Fedora.
1099
1100JH/15 Bug 1712: Introduce $prdr_requested flag variable
1101
6ff55e50
JH
1102JH/16 Bug 1714: Permit an empty string as expansion result for transport
1103 option transport_filter, meaning no filtering.
1104
3b957582
JB
1105JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
1106
23f3dc67
JH
1107JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
1108 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 1109 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
1110 If a server certificate is not supplied (via tls_certificate) an error is
1111 logged, and clients will find TLS connections fail on startup. Presumably
1112 they will retry in-clear.
1113 Packagers of Exim are strongly encouraged to create a server certificate
1114 at installation time.
1115
240c288f
JH
1116HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
1117 with the $config_file variable.
1118
5ef5dd52
JB
1119JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
1120 in transport context, after the attempt, and per-recipient. The latter type
1121 is per host attempted. The event data is the error message, and the errno
1122 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 1123 and the trailing two digits of the smtp 4xx response.
5ef5dd52 1124
e161710d
GF
1125GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
1126 to write to mainlog (or rejectlog, paniclog) in the window between file
1127 creation and permissions/ownership being changed. Particularly affects
1128 installations where exicyclog is run as root, rather than exim user;
1129 result is that the running daemon panics and dies.
1130
a159f203
JH
1131JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
1132
7f06582c
JH
1133JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
1134 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
1135 "pri" and "weight". Note that the previous implicit priority given by the
1136 list order is no longer honoured.
1137
4c04137d 1138JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
1139 for DKIM processing.
1140
f0989ec0
JH
1141JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
1142 by defining SUPPORT_SOCKS.
74f150bf 1143
cee5f132
JH
1144JH/26 Move PROXY support from Experimental to mainline, enabled for a build
1145 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
1146 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
1147 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 1148
8c5d388a
JH
1149JH/27 Move Internationalisation support from Experimental to mainline, enabled
1150 for a build by defining SUPPORT_I18N
1151
2d8d625b
JH
1152JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
1153 of the query string, and make ${quote_redis:} do that quoting.
1154
0cbf2b82
JH
1155JH/29 Move Events support from Experimental to mainline, enabled by default
1156 and removable for a build by defining DISABLE_EVENT.
1157
f2f2c91b
JH
1158JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
1159
ce325893
JH
1160JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
1161 cached by the daemon.
1162
de78e2d5
JH
1163JH/32 Move Redis support from Experimental to mainline, enabled for a build
1164 by defining LOOKUP_REDIS. The libhiredis library is required.
1165
379ba7d0
JH
1166JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
1167 keys are given for lookup.
1168
f444c2c7
JH
1169JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
1170 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
1171 only supported when built with TLS support. The PolarSSL SHA routines
1172 are still used when the TLS library is too old for convenient support.
f444c2c7 1173
a57b6200
JH
1174JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
1175 openssl_options), for security. OpenSSL forces this from version 1.1.0
1176 server-side so match that on older versions.
1177
07c73177 1178JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1179 allocation for $value could be released as the expansion processing
07c73177 1180 concluded, but leaving the global pointer active for it.
fa01e4f8 1181
4f6ae5c3
JH
1182JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1183 and to use the domains and local_parts ACL conditions.
1184
1bc460a6
JH
1185JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1186 incorrectly not doubled on cutthrough transmission, hence seen as a
1187 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1188 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1189 via the normal store-and-forward channel. This could result in duplicates
1190 received - but deduplicating mailstores were liable to retain only the
1191 initial truncated version.
1192
ab9152ff 1193JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1194
67e87fcf
JH
1195JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1196
ab9152ff
JH
1197JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1198 we're in there, support oversigning also; bug 1309.
1199
af483912
JH
1200JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1201
bc3c7bb7 1202HS/04 Add support for keep_environment and add_environment options.
df3def24 1203
13559da6
JH
1204JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1205 either intentional arithmetic overflow during PRNG, or testing config-
1206 induced overflows.
1207
59eaad2b
JH
1208JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1209 delivery resulted in actual delivery. Cancel cutthrough before DATA
1210 stage.
1211
f9334a28
JH
1212JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1213 rejects a recipient: pass the reject to the originator.
1214
dc8091e7
JH
1215JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1216 Many were false-positives and ignorable, but it's worth fixing the
1217 former class.
1218
dfe7d917
JH
1219JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1220 for the new environment-manipulation done at startup. Move the routines
1221 from being local to tls.c to being global via the os.c file.
1222
93cc2d6e
JH
1223JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1224 an extract embedded as result-arg for a map, the first arg for extract
1225 is unavailable so we cannot tell if this is a numbered or keyed
1226 extraction. Accept either.
1227
13559da6 1228
9c695f6d
JH
1229Exim version 4.86
1230-----------------
4c57a40e 1231
9c695f6d
JH
1232JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1233 expanded.
1234
506900af
JH
1235JH/02 The smtp transport option "multi_domain" is now expanded.
1236
ad07e9ad
JH
1237JH/03 The smtp transport now requests PRDR by default, if the server offers
1238 it.
1239
01a4a5c5 1240JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1241 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1242 can be used to disable this per-host. The build option
1243 EXPERIMENTAL_CERTNAMES is withdrawn.
1244
cb1d7830 1245JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1246 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1247 For GnuTLS, only version 3.0.20 or later.
1248
610ff438 1249JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1250 (but not required) by default. The verification status is now logged by
1251 default, for both outbound TLS and client-certificate supplying inbound
1252 TLS connections
610ff438 1253
f926e272
JH
1254JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1255 sites use this now.
1256
50dc7409
JH
1257JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1258 Status Notification (bounce) messages are now MIME format per RFC 3464.
1259 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1260 under the control of the dsn_advertise_hosts option, and routers may
1261 have a dsn_lasthop option.
1262
0f0c8159
JH
1263JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1264 default, modifiable by a malware= option. The list separator for
23763898 1265 the options can now be changed in the usual way. Bug 68.
4e71661f 1266
1ad6489e
JH
1267JH/10 The smtp_receive_timeout main option is now expanded before use.
1268
aeaf5db3
JH
1269JH/11 The incoming_interface log option now also enables logging of the
1270 local interface on delivery outgoing connections.
1271
5032d1cf
JH
1272JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1273 if the interface and destination host and port all match.
1274
7e8360e6
JH
1275JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1276 /defer_ok option.
1277
c5f280e2
AL
1278JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1279 Patch from Andrew Lewis.
1280
fd4d8871 1281JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1282 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1283 modifiers per server. Patch originally by <rommer@active.by>.
1284
1285JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1286 and remote servers. Remote servers can be IPv6 addresses, and
1287 specify a port-range.
fd4d8871 1288
23763898
JH
1289JH/17 Bug 68: The spamd_address main option now supports an optional
1290 timeout value per server.
1291
2ad78978
JH
1292JH/18 Bug 1581: Router and transport options headers_add/remove can
1293 now have the list separator specified.
1294
8a512ed5 1295JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1296 option values.
8a512ed5 1297
82c0c8ea 1298JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1299 under OpenSSL.
1300
cc00f4af
JH
1301JH/21 Support for the A6 type of dns record is withdrawn.
1302
82c0c8ea
JH
1303JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1304 rather than the verbs used.
1305
b980ed83
JH
1306JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1307 from 255 to 1024 chars.
1308
6c9ed72e
JH
1309JH/24 Verification callouts now attempt to use TLS by default.
1310
cfab9d68 1311HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1312 are generic router options now. The defaults didn't change.
50dc7409 1313
f846c8f5
JH
1314JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1315 Original patch from Alexander Shikoff, worked over by JH.
1316
fd4c285c
HSHR
1317HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1318 files if ZCAT_COMMAND is not executable.
1319
4c04137d 1320JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1321
d2a2c69b
JH
1322JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1323
8241d8dd
JH
1324JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1325 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1326 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1327 (and we were inconsistent anyway for A-only vs AAAA+A).
1328
1f12df4d
JH
1329JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1330
1f155f8e
JH
1331JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1332 when evaluating $sender_host_dnssec.
1333
1705dd20
JH
1334JH/31 Check the HELO verification lookup for DNSSEC, adding new
1335 $sender_helo_dnssec variable.
1336
038597d2
PP
1337JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1338
474f71bf
JH
1339JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1340
7137ca4b
JH
1341JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1342
dcb1095c
JH
1343JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1344 documented as working, but never had. Support all but $spam_report.
1345
2f460950
JH
1346JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1347 added for tls authenticator.
1348
2f680c0c
HSHR
1349HS/03 Add perl_taintmode main config option
1350
9c695f6d 1351
e449c3b0
TL
1352Exim version 4.85
1353-----------------
4c57a40e 1354
e449c3b0
TL
1355TL/01 When running the test suite, the README says that variables such as
1356 no_msglog_check are global and can be placed anywhere in a specific
1357 test's script, however it was observed that placement needed to be near
1358 the beginning for it to behave that way. Changed the runtest perl
1359 script to read through the entire script once to detect and set these
1360 variables, reset to the beginning of the script, and then run through
1361 the script parsing/test process like normal.
1362
ac20058f
TL
1363TL/02 The BSD's have an arc4random API. One of the functions to induce
1364 adding randomness was arc4random_stir(), but it has been removed in
1365 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1366 function when detected.
1367
a9b8ec8b
JH
1368JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1369 cause callback expansion.
1370
6286d7c4
TL
1371TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1372 syntax errors in an expansion can be treated as a string instead of
1373 logging or causing an error, due to the internal use of bool_lax
1374 instead of bool when processing it.
1375
0f06b4f2 1376JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1377 server certificates when making smtp deliveries.
1378
be36e572
JH
1379JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1380
ac4ef9bd
JH
1381JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1382
0eb51736
TL
1383TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1384
c713ca4b
TL
1385TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1386 Merged patch from Sebastian Wiedenroth.
e449c3b0 1387
bd21a787
WB
1388JH/05 Fix results-pipe from transport process. Several recipients, combined
1389 with certificate use, exposed issues where response data items split
1390 over buffer boundaries were not parsed properly. This eventually
1391 resulted in duplicates being sent. This issue only became common enough
4c04137d 1392 to notice due to the introduction of connection certificate information,
bd21a787
WB
1393 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1394
8bc732e8
JH
1395JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1396 size buffer was used, resulting in syntax errors when an expansion
1397 exceeded it.
1398
a7fec7a7
JH
1399JH/07 Add support for directories of certificates when compiled with a GnuTLS
1400 version 3.3.6 or later.
1401
4c04137d 1402JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1403 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1404 both become "event_action", the variables become $event_name, $event_data
aec45841 1405 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1406 routers, transports and related events. The tls:cert event is now also
1407 raised for inbound connections, if the main configuration event_action
1408 option is defined.
774ef2d7 1409
eca4debb
TL
1410TL/06 In test suite, disable OCSP for old versions of openssl which contained
1411 early OCSP support, but no stapling (appears to be less than 1.0.0).
1412
8d692470
JH
1413JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1414 server certificate names available under the smtp transport option
1415 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1416 matches.
1417
e9477a08
JH
1418JH/10 Time-related extraction expansions from certificates now use the main
1419 option "timezone" setting for output formatting, and are consistent
1420 between OpenSSL and GnuTLS compilations. Bug 1541.
1421
ad4c5ff9
JH
1422JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1423 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1424
1425JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1426 include certificate info, eximon was claiming there were spoolfile
1427 syntax errors.
1428
3394b36a 1429JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1430
1431JH/14 Log delivery-related information more consistently, using the sequence
1432 "H=<name> [<ip>]" wherever possible.
1433
3394b36a
TL
1434TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1435 are problematic for Debian distribution, omit them from the release
1436 tarball.
1437
ad4c5ff9
JH
1438JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1439
4c04137d 1440JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1441 Bug 1561.
1442
1443JH/17 Fix a null-indirection in certextract expansions when a nondefault
1444 output list separator was used.
1445
8bc732e8 1446
1f0ebb98
TL
1447Exim version 4.84
1448-----------------
09728d20
TL
1449TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1450 checkers that were complaining about end of non-void function with no
1451 return.
1f0ebb98 1452
a612424f 1453JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1454 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1455
1456JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1457
1458TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1459 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1460
1f0ebb98 1461
c0e56233
TF
1462Exim version 4.83
1463-----------------
1464
1465TF/01 Correctly close the server side of TLS when forking for delivery.
1466
1467 When a message was received over SMTP with TLS, Exim failed to clear up
1468 the incoming connection properly after forking off the child process to
1469 deliver the message. In some situations the subsequent outgoing
1470 delivery connection happened to have the same fd number as the incoming
1471 connection previously had. Exim would try to use TLS and fail, logging
1472 a "Bad file descriptor" error.
1473
7245734e
TF
1474TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1475 utilities have not been installed.
1476
fd5dad68
JH
1477JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1478 temporary space as the ACL may create new global variables.
1479
5428a946
TL
1480TL/01 LDAP support uses per connection or global context settings, depending
1481 upon the detected version of the libraries at build time.
1482
a3c86431
TL
1483TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1484 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1485 were a direct connection from the outside internet. PPv2 support was
1486 updated based on HAProxy spec change in May 2014.
a3c86431 1487
aa26e137
JH
1488JH/02 Add ${listextract {number}{list}{success}{fail}}.
1489
5a1b8443
WB
1490TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1491 Properly escape header and check for NULL return.
1492
72c9e342
PP
1493PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1494 not dns_use_dnssec.
1495
76f44207
WB
1496JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1497
770747fd
MFM
1498TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1499 characters in header names, implemented as a verify condition.
1500 Contributed by Michael Fischer v. Mollard.
1501
8ddef691 1502TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1503 results permerror and temperror. Previous values are deprecated but
1504 still accepted. In a future release, err_perm and err_temp will be
1505 completely removed, which will be a backward incompatibility if the
1506 ACL tests for either of these two old results. Patch contributed by
8ddef691 1507 user bes-internal on the mailing list.
c0e56233 1508
b9c2e32f
AR
1509JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1510
e45a1c37
JH
1511JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1512 selectors, in both main and reject logs.
1513
67d81c10
JH
1514JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1515 failed delivery.
1516
b1f8e4f8
JH
1517JH/07 Add malware type "sock" for talking to simple daemon.
1518
511a6c14 1519JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1520
1521JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1522 routers/transports under cutthrough routing.
214042d2 1523
51c7471d
JH
1524JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1525 numbers. Touch up "bool" conditional to keep the same definition.
1526
3695be34
TL
1527TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1528
1e06383a
TL
1529JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1530
76146973
JH
1531JH/12 Expand items in router/transport headers_add or headers_remove lists
1532 individually rather than the list as a whole. Bug 1452.
1533
1534 Required for reasonable handling of multiple headers_ options when
1535 they may be empty; requires that headers_remove items with embedded
1536 colons must have them doubled (or the list-separator changed).
1537
8c8b8274
TL
1538TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1539 view the policy declared in the DMARC record. Currently, $dmarc_status
1540 is a combined value of both the record presence and the result of the
1541 analysis.
b1f8e4f8 1542
35aba663
JH
1543JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1544
8c51eead 1545JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1546 dnslookup router and the smtp transport (applying to the forward
1547 lookup).
8c51eead 1548
deae092e
HS
1549TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1550 of ldap servers used for a specific lookup. Patch provided by Heiko
1551 Schlichting.
35aba663 1552
fd3b6a4a 1553JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1554 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1555
8d91c6dc
LT
1556TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1557 Patch submitted by Lars Timman.
1558
2b4a568d
JH
1559JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1560
d2af03f4
HS
1561TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1562 Requires trusted mode and valid format message id, aborts otherwise.
1563 Patch contributed by Heiko Schlichting.
1564
9d1c15ef
JH
1565JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1566 certextract with support for various fields. Bug 1358.
1567
44662487
JH
1568JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1569 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1570 hosts_request_ocsp.
1571
ed3bba5f 1572JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1573 operate on certificate variables to give certificate fingerprints
9ef9101c 1574 Also new ${sha256:cert_variable}.
44662487 1575
8ccd00b1
JH
1576JH/23 The PRDR feature is moved from being Experimental into the mainline.
1577
8ded8589
TL
1578TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1579 Christian Aistleitner.
1580
f2de3a33
JH
1581JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1582
6eb02f88
TL
1583TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1584 file. Patch from Wolfgang Breyha.
1585
00bff6f6
JH
1586JH/25 Expand the coverage of the delivery $host and $host_address to
1587 client authenticators run in verify callout. Bug 1476.
1588
071c51f7
JH
1589JH/26 Port service names are now accepted for tls_on_connect_ports, to
1590 align with daemon_smtp_ports. Bug 72.
1591
a6d4c44e
TF
1592TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1593 support and error reporting did not work properly.
1594
3ae173e7
ACK
1595TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1596 and is readable. Patch from Andrew Colin Kissa.
1597
c13d09b8
TL
1598TL/14 Enhance documentation of ${run expansion and how it parses the
1599 commandline after expansion, particularly in the case when an
1600 unquoted variable expansion results in an empty value.
1601
0df4ab80
JH
1602JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1603
66be95e0
PP
1604PP/02 Fix internal collision of T_APL on systems which support RFC3123
1605 by renaming away from it. Addresses GH issue 15, reported by
1606 Jasper Wallace.
1607
1bd0d12b
JH
1608JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1609
0de7239e
TL
1610TL/15 SECURITY: prevent double expansion in math comparison functions
1611 (can expand unsanitized data). Not remotely exploitable.
1612 CVE-2014-2972
1613
fd3b6a4a 1614
2c422e6f 1615Exim version 4.82
98a90c36
PP
1616-----------------
1617
1618PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1619
12f69989
PP
1620PP/02 Make -n do something, by making it not do something.
1621 When combined with -bP, the name of an option is not output.
1622
54c90be1
PP
1623PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1624 by GnuTLS.
1625
1f4a55da
PP
1626PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1627 $sender_host_name and config options to manage this, and basic check
1628 routines.
1629
13363eba 1630PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1631
66645890 1632PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1633 (Only plugin which currently uses this is kerberos4, which nobody should
1634 be using, but we should make it available and other future plugins might
1635 conceivably use it, even though it would break NAT; stuff *should* be
1636 using channel bindings instead).
66645890 1637
a3fb9793 1638PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1639 name; added for Sendmail compatibility; requires admin caller.
1640 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1641 just ignore it); requires trusted caller.
a3fb9793 1642 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1643 Bugzilla 1117.
a3fb9793 1644
d27f98fe 1645TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1646
6822b909
TL
1647TL/02 Add +smtp_confirmation as a default logging option.
1648
e7568d51
TL
1649TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1650 Patch by Magnus Holmgren from 2007-02-20.
1651
ae0e32ee 1652TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1653 Bugzilla 1283 - Spec typo.
97f42f10 1654 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1655
1656TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1657
e2658fff
TL
1658TL/06 Add Experimental DMARC support using libopendmarc libraries.
1659
83712b39
TL
1660TL/07 Fix an out of order global option causing a segfault. Reported to dev
1661 mailing list by by Dmitry Isaikin.
1662
976b7e9f
JH
1663JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1664
be4a1376
JH
1665JH/02 Support "G" suffix to numbers in ${if comparisons.
1666
ec4b68e5
PP
1667PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1668
d7148a07
NM
1669NM/01 Bugzilla 1197 - Spec typo
1670 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1671
585121e2 1672JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1673
2519e60d
TL
1674PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1675 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1676 function.
a5f239e4 1677
13d08c90
PP
1678PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1679 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1680
bef3ea7f
JH
1681JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1682 "acl {{name}{arg}...}", and optional args on acl condition
1683 "acl = name arg..."
a5f239e4 1684
846726c5
JH
1685JH/05 Permit multiple router/transport headers_add/remove lines.
1686
3a796370
JH
1687JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1688
ea722490 1689JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1690 Performance patch from Paul Fisher. Bugzilla 1262.
1691
b1b05573
JH
1692JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1693 Bugzilla 884.
1694
362145b5
JH
1695JH/09 Add $headers_added variable, with content from use of ACL modifier
1696 add_header (but not yet added to the message). Bugzilla 199.
1697
3c0a92dc
JH
1698JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1699 Pulled from Bugzilla 817 by Wolfgang Breyha.
1700
6d7c6175
PP
1701PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1702 CVE-2012-5671
e78e6ecf 1703 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1704
6f123593
JH
1705JH/11 Add A= logging on delivery lines, and a client_set_id option on
1706 authenticators.
1707
c8e2fc1e
JH
1708JH/12 Add optional authenticated_sender logging to A= and a log_selector
1709 for control.
1710
005ac57f
PP
1711PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1712
3f1df0e3
PP
1713PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1714 advertise SMTP AUTH mechanism to us, instead of a generic
1715 protocol violation error. Also, make Exim more robust to bad
1716 data from the Dovecot auth socket.
1717
67bd1ab3
TF
1718TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1719
1720 When a queue runner is handling a message, Exim first routes the
1721 recipient addresses, during which it prunes them based on the retry
1722 hints database. After that it attempts to deliver the message to
1723 any remaining recipients. It then updates the hints database using
1724 the retry rules.
1725
1726 So if a recipient address works intermittently, it can get repeatedly
1727 deferred at routing time. The retry hints record remains fresh so the
1728 address never reaches the final cutoff time.
1729
1730 This is a fairly common occurrence when a user is bumping up against
1731 their storage quota. Exim had some logic in its local delivery code
1732 to deal with this. However it did not apply to per-recipient defers
1733 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1734
1ddeb334
TF
1735 This change adds a proper retry rule check during routing so that the
1736 final cutoff time is checked against the message's age. We only do
1737 this check if there is an address retry record and there is not a
1738 domain retry record; this implies that previous attempts to handle
1739 the address had the retry_use_local_parts option turned on. We use
1740 this as an approximation for the destination being like a local
1741 delivery, as in LMTP.
67bd1ab3
TF
1742
1743 I suspect this new check makes the old local delivery cutoff check
1744 redundant, but I have not verified this so I left the code in place.
1745
326cdc37
TF
1746TF/02 Correct gecos expansion when From: is a prefix of the username.
1747
1748 Test 0254 submits a message to Exim with the header
1749
1750 Resent-From: f
1751
1752 When I ran the test suite under the user fanf2, Exim expanded
1753 the header to contain my full name, whereas it should have added
1754 a Resent-Sender: header. It erroneously treats any prefix of the
1755 username as equal to the username.
1756
1757 This change corrects that bug.
1758
f62514b3
GF
1759GF/01 DCC debug and logging tidyup
1760 Error conditions log to paniclog rather than rejectlog.
1761 Debug lines prefixed by "DCC: " to remove any ambiguity.
1762
eb505532
TF
1763TF/03 Avoid unnecessary rebuilds of lookup-related code.
1764
14c7b357
PP
1765PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1766 Bug spotted by Jeremy Harris; was flawed since initial commit.
1767 Would have resulted in OCSP responses post-SNI triggering an Exim
1768 NULL dereference and crash.
1769
94eaf700
PP
1770JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1771
6f5a440a
PP
1772PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1773 Bug detection, analysis and fix by Samuel Thibault.
1774 Bugzilla 1331, Debian bug #698092.
1775
514ee161
SC
1776SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1777
fd98a5c6
JH
1778JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1779 Server implementation by Todd Lyons, client by JH.
1780 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1781 config variable "prdr_enable" controls whether the server
1782 advertises the facility. If the client requests PRDR a new
1783 acl_data_smtp_prdr ACL is called once for each recipient, after
1784 the body content is received and before the acl_smtp_data ACL.
4c04137d 1785 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1786 on the smtp transport, and the server advertisement.
1787 Default client logging of deliveries and rejections involving
1788 PRDR are flagged with the string "PRDR".
1789
035c7f1e
PP
1790PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1791 fclose(). Diagnosis by Todd Lyons.
1792
ff284120
PP
1793PP/17 Update configure.default to handle IPv6 localhost better.
1794 Patch by Alain Williams (plus minor tweaks).
1795 Bugzilla 880.
1796
26e72755
PP
1797PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1798 This is now consistent with GnuTLS, and is now documented: the
1799 previous undocumented portable approach to treating the option as
1800 unset was to force an expansion failure. That still works, and
1801 an empty string is now equivalent.
1802
0fbd9bff
PP
1803PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1804 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1805 not performing validation itself.
1806
700d22f3
PP
1807PP/20 Added force_command boolean option to pipe transport.
1808 Patch from Nick Koston, of cPanel Inc.
1809
fcc8e047
JH
1810JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1811 Bugzilla 321, 823.
1812
4c04137d 1813TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1814
8c020188
PP
1815PP/21 Fix eximon continuous updating with timestamped log-files.
1816 Broken in a format-string cleanup in 4.80, missed when I repaired the
1817 other false fix of the same issue.
1818 Report and fix from Heiko Schlichting.
1819 Bugzilla 1363.
1820
d13cdd30
PP
1821PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1822 Report from Prashanth Katuri.
1823
e2fbf4a2
PP
1824PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1825 It's SecureTransport, so affects any MacOS clients which use the
1826 system-integrated TLS libraries, including email clients.
1827
f4c1088b
PP
1828PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1829 using a MIME ACL for non-SMTP local injection.
1830 Report and assistance in diagnosis by Warren Baker.
1831
c5c2182f
PP
1832TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1833
73431ca9
JH
1834JH/16 Fix comparisons for 64b. Bugzilla 1385.
1835
2d07a215
TL
1836TL/09 Add expansion variable $authenticated_fail_id to keep track of
1837 last id that failed so it may be referenced in subsequent ACL's.
1838
a30a8861
TL
1839TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1840 Alexander Miroch.
1841
33382dd9
TL
1842TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1843 ldap library initialization, allowing self-signed CA's to be
1844 used. Also properly sets require_cert option later in code by
1845 using NULL (global ldap config) instead of ldap handle (per
1846 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1847
046172e6
TL
1848TL/12 Enhanced documentation in the ratelimit.pl script provided in
1849 the src/util/ subdirectory.
1850
581d7bee 1851TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1852 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1853 EXPERIMENTAL_TPDA.
1854
1855TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1856 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1857 redis_servers = needs to be configured which will be used by the redis
1858 lookup. Patch from Warren Baker, of The Packet Hub.
1859
237b2cf2
TL
1860TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1861
9fc5a352
TL
1862TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1863 hostname or reverse DNS when processing a host list. Used suggestions
1864 from multiple comments on this bug.
1a7b746d 1865
b10e4ec2
TL
1866TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1867
e2cebd74
TL
1868TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1869 Missed a few lines, added it to make the runtest require no keyboard
1870 interaction.
1871
1872TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1873 contains upper case chars. Make router use caseful_local_part.
1874
2519e60d
TL
1875TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1876 support when GnuTLS has been built with p11-kit.
1877
e78e6ecf 1878
4263f395
PP
1879Exim version 4.80.1
1880-------------------
1881
1882PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1883 CVE-2012-5671
2c422e6f 1884 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1885
ea722490 1886
b1770b6e 1887Exim version 4.80
0599f9cf
PP
1888-----------------
1889
1890PP/01 Handle short writes when writing local log-files.
1891 In practice, only affects FreeBSD (8 onwards).
1892 Bugzilla 1053, with thanks to Dmitry Isaikin.
1893
23c7e742
NM
1894NM/01 Bugzilla 949 - Documentation tweak
1895
b322aac8
NM
1896NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1897 improved.
1898
4a891427
NM
1899NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1900
c1e794ba 1901PP/02 Implemented gsasl authenticator.
b322aac8 1902
97753960
PP
1903PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1904
1905PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1906 `pkg-config foo` for cflags/libs.
1907
df6303fa
PP
1908PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1909 with rest of GSASL and with heimdal_gssapi.
1910
7e6a8985
PP
1911PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1912 `pkg-config foo` for cflags/libs for the TLS implementation.
1913
f1e05cc7 1914PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1915 properties get this fed in as external SSF. A number of robustness
1916 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1917
4c287009
PP
1918PP/08 cyrus_sasl server now expands the server_realm option.
1919
b98bb9ac
PP
1920PP/09 Bugzilla 1214 - Log authentication information in reject log.
1921 Patch by Jeremy Harris.
1922
4a6a987a
PP
1923PP/10 Added dbmjz lookup type.
1924
c45dd180 1925PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1926
7db8d074
PP
1927PP/12 MAIL args handles TAB as well as SP, for better interop with
1928 non-compliant senders.
1929 Analysis and variant patch by Todd Lyons.
1930
eae0036b 1931NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1932 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1933 Patch from Dirk Mueller <dmueller@suse.com>
1934
dec5017e
PP
1935PP/13 tls_peerdn now print-escaped for spool files.
1936 Observed some $tls_peerdn in wild which contained \n, which resulted
1937 in spool file corruption.
1938
c80c5570
PP
1939PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1940 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1941 or write after TLS renegotiation, which otherwise led to messages
1942 "Got SSL error 2".
1943
076b11e2
PP
1944TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1945 as a tracking header (ie: a signed header comes before the signature).
1946 Patch from Wolfgang Breyha.
1947
5407bfff
JH
1948JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1949 comma-sep list; embedded commas doubled.
1950
9e45c72b
PP
1951JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1952
e74376d8
PP
1953PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1954 diagnostics.
1955 Report and patch from Dmitry Banschikov.
1956
4c04137d 1957PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1958 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1959 failures. We appear to now support TLS1.1+ with Exim.
1960
7be682ca
PP
1961PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1962 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1963 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1964 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1965
ef840681
PP
1966PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1967 NULL dereference. Report and patch from Alun Jones.
1968
5bfb4cdf
PP
1969PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1970 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1971 Not seeing resolver debug output on NetBSD, but suspect this is a
1972 resolver implementation change.
1973
c6e95d22
PP
1974PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1975 Left warnings. Added "eximon gdb" invocation mode.
1976
9cbad13b
PP
1977PP/21 Defaulting "accept_8bitmime" to true, not false.
1978
9ee44efb
PP
1979PP/22 Added -bw for inetd wait mode support.
1980
6a6084f8
PP
1981PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1982 locate the relevant includes and libraries. Made this the default.
1983
12dd53c7
PP
1984PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1985 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1986
9e45c72b 1987JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1988 This may cause build issues on older platforms.
1989
17c76198
PP
1990PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1991 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1992 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1993 Added SNI support via GnuTLS too.
af3498d6 1994 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1995
53947857 1996PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1997
eae0036b 1998PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1999 Applied second patch from Janne, implementing suggestion to default
2000 multiple-strings-in-record handling to match SPF spec.
eae0036b 2001
9e45c72b 2002JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 2003
7390e768
PP
2004PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
2005 read-only, out of scope).
2006 Patch from Wolfgang Breyha, report from Stuart Northfield.
2007
08488c86
PP
2008PP/29 Fix three issues highlighted by clang analyser static analysis.
2009 Only crash-plausible issue would require the Cambridge-specific
2010 iplookup router and a misconfiguration.
2011 Report from Marcin Mirosław.
2012
6475bd82
PP
2013PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
2014
81f91683
PP
2015PP/31 %D in printf continues to cause issues (-Wformat=security), so for
2016 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
2017 As part of this, removing so much warning spew let me fix some minor
2018 real issues in debug logging.
2019
5779e6aa
PP
2020PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
2021 assignment on my part. Fixed.
2022
3375e053
PP
2023PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
2024 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
2025 Janne Snabb (who went above and beyond: thank you).
2026
2027PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
2028 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
2029 relatively easy to get wrong. Should also expose TLS library linkage
2030 problems.
3375e053 2031
9d26b8c0
PP
2032PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
2033 64-bit ${eval} (JH/03).
2034
57eb9e91 2035PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
2036 GNU libc to support some of the 64-bit stuff, should not lead to
2037 conflicts. Defined before os.h is pulled in, so if a given platform
2038 needs to override this, it can.
2039
16880d1a
PP
2040PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
2041 protection layer was required, which is not implemented.
2042 Bugzilla 1254, patch from Wolfgang Breyha.
2043
a799883d
PP
2044PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
2045 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
2046 tls_dhparam take prime identifiers. Also unbreak combination of
2047 OpenSSL+DH_params+TLSSNI.
2048
3ecab157 2049PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 2050
0599f9cf 2051
867fcbf5
PP
2052Exim version 4.77
2053-----------------
2054
2055PP/01 Solaris build fix for Oracle's LDAP libraries.
2056 Bugzilla 1109, patch from Stephen Usher.
2057
f1a29782
TF
2058TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
2059
ab42bd23
TK
2060TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
2061 whitespace trailer
867fcbf5 2062
0ca0cf52
TF
2063TF/02 Fix a couple more cases where we did not log the error message
2064 when unlink() failed. See also change 4.74-TF/03.
2065
921b12ca
TF
2066TF/03 Make the exiwhat support code safe for signals. Previously Exim might
2067 lock up or crash if it happened to be inside a call to libc when it
2068 got a SIGUSR1 from exiwhat.
2069
2070 The SIGUSR1 handler appends the current process status to the process
2071 log which is later printed by exiwhat. It used to use the general
2072 purpose logging code to do this, but several functions it calls are
2073 not safe for signals.
2074
2075 The new output code in the SIGUSR1 handler is specific to the process
2076 log, and simple enough that it's easy to inspect for signal safety.
2077 Removing some special cases also simplifies the general logging code.
2078 Removing the spurious timestamps from the process log simplifies
2079 exiwhat.
2080
c99ce5c9
TF
2081TF/04 Improved ratelimit ACL condition.
2082
2083 The /noupdate option has been deprecated in favour of /readonly which
2084 has clearer semantics. The /leaky, /strict, and /readonly update modes
2085 are mutually exclusive. The update mode is no longer included in the
2086 database key; it just determines when the database is updated. (This
4c04137d 2087 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
2088
2089 Exim now checks that the per_* options are used with an update mode that
2090 makes sense for the current ACL. For example, when Exim is processing a
2091 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
2092 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
2093 must specify per_mail/readonly. If you omit the update mode it defaults to
2094 /leaky where that makes sense (as before) or /readonly where required.
2095
2096 The /noupdate option is now undocumented but still supported for
2097 backwards compatibility. It is equivalent to /readonly except that in
2098 ACLs where /readonly is required you may specify /leaky/noupdate or
2099 /strict/noupdate which are treated the same as /readonly.
2100
2101 A useful new feature is the /count= option. This is a generalization
2102 of the per_byte option, so that you can measure the throughput of other
2103 aggregate values. For example, the per_byte option is now equivalent
2104 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
2105
2106 The per_rcpt option has been generalized using the /count= mechanism
2107 (though it's more complicated than the per_byte equivalence). When it is
2108 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
2109 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
2110 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
2111 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
2112 Note that using per_rcpt with a non-readonly update mode in more than
2113 one ACL will cause the recipients to be double-counted. (The per_mail
2114 and per_byte options don't have this problem.)
2115
2116 The handling of very low rates has changed slightly. If the computed rate
2117 is less than the event's count (usually one) then this event is the first
2118 after a long gap. In this case the rate is set to the same as this event's
2119 count, so that the first message of a spam run is counted properly.
2120
2121 The major new feature is a mechanism for counting the rate of unique
2122 events. The new per_addr option counts the number of different
2123 recipients that someone has sent messages to in the last time period. It
2124 behaves like per_rcpt if all the recipient addresses are different, but
2125 duplicate recipient addresses do not increase the measured rate. Like
2126 the /count= option this is a general mechanism, so the per_addr option
2127 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
2128 example, measure the rate that a client uses different sender addresses
2129 with the options per_mail/unique=$sender_address. There are further
2130 details in the main documentation.
2131
3634fc25
TF
2132TF/05 Removed obsolete $Cambridge$ CVS revision strings.
2133
792e8a19
TF
2134TF/06 Removed a few PCRE remnants.
2135
5901f0ab
TF
2136TF/07 Automatically extract Exim's version number from tags in the git
2137 repository when doing development or release builds.
2138
7f2a2a43
PP
2139PP/02 Raise smtp_cmd_buffer_size to 16kB.
2140 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 2141
061b7ebd
PP
2142PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
2143 Heavily based on revision 40f9a89a from Simon Arlott's tree.
2144 Bugzilla 97.
2145
e12f8c32
PP
2146PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
2147
9e949f00 2148PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
2149 Bugzilla 1078. Patch from John Horne.
2150
2151PP/06 Stop make process more reliably on build failure.
2152 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 2153
555ae6af 2154PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
2155 Bugzilla 1089. Patch from Heiko Schlittermann.
2156
2157PP/08 Handle ${run} returning more data than OS pipe buffer size.
2158 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 2159
6f7fe114
PP
2160PP/09 Handle IPv6 addresses with SPF.
2161 Bugzilla 860. Patch from Wolfgang Breyha.
2162
c566dd90
PP
2163PP/10 GnuTLS: support TLS 1.2 & 1.1.
2164 Bugzilla 1156.
89f897c3
PP
2165 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
2166 Bugzilla 1095.
c566dd90 2167
d6cc7c78 2168PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
2169 New compile-time build option, EXPAND_LISTMATCH_RHS.
2170 New expansion conditions, "inlist", "inlisti".
2171
0d0e4455
PP
2172PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
2173
3399bb60 2174PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
2175
2176PP/14 fix log_write() format string regression from TF/03.
2177 Bugzilla 1152. Patch from Dmitry Isaikin.
2178
0ca0cf52 2179
10906672
PP
2180Exim version 4.76
2181-----------------
2182
2183PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2184
754a0503
PP
2185PP/02 Harmonised TLS library version reporting; only show if debugging.
2186 Layout now matches that introduced for other libraries in 4.74 PP/03.
2187
c0c7b2da
PP
2188PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2189
e97d1f08
PP
2190PP/04 New "dns_use_edns0" global option.
2191
084c1d8c
PP
2192PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2193 Bugzilla 1098.
2194
4e7ee012
PP
2195PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2196 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2197
c8d52a00
PP
2198TK/01 Updated PolarSSL code to 0.14.2.
2199 Bugzilla 1097. Patch from Andreas Metzler.
2200
54e7ce4a
PP
2201PP/07 Catch divide-by-zero in ${eval:...}.
2202 Fixes bugzilla 1102.
2203
5ee6f336
PP
2204PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2205 Bugzilla 1104.
2206
c8d52a00 2207TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2208 format-string attack -- SECURITY: remote arbitrary code execution.
2209
2210TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2211 time unintentionally subject to list matching rules, letting the header
2212 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2213 arbitrary string expansion). This allowed for information disclosure.
2214
2215PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2216 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2217
10906672 2218
aa097c4c
NM
2219Exim version 4.75
2220-----------------
2221
4c04137d 2222NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2223 Bugzilla 1073
2224
7f3d9eff
TF
2225TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2226 This fixes portability to compilers other than gcc, notably
2227 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2228
159f52d2
TF
2229TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2230 makefiles for portability to HP-UX and POSIX correctness.
2231
0cc9542a
PP
2232PP/01 Permit LOOKUP_foo enabling on the make command-line.
2233 Also via indented variable definition in the Makefile.
2234 (Debugging by Oliver Heesakkers).
2235
f7274286
PP
2236PP/02 Restore caching of spamd results with expanded spamd_address.
2237 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2238
7b797365
PP
2239PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2240 Improves build reliability. Fix from: Frank Elsner
2241
caacae52
NM
2242NM/02 Fix wide character breakage in the rfc2047 coding
2243 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2244
09dcaba9
NM
2245NM/03 Allow underscore in dnslist lookups
2246 Fixes bug 1026. Patch from Graeme Fowler
2247
bc19a55b
PP
2248PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2249 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2250
bd4c9759
NM
2251NM/04 Fixed exiqgrep to cope with mailq missing size issue
2252 Fixes bug 943.
2253
b72aab72
PP
2254PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2255 is logged, to avoid truncation. Patch from John Horne.
2256
2fe76745
PP
2257PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2258 Patch from Jakob Hirsch.
2259
76aa570c
PP
2260PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2261 SQL string expansion failure details.
2262 Patch from Andrey Oktyabrski.
2263
f1e5fef5
PP
2264PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2265 Patch from Simon Arlott.
2266
4d805ee9
PP
2267PP/09 New lookups functionality failed to compile on old gcc which rejects
2268 extern declarations in function scope.
2269 Patch from Oliver Fleischmann
2270
cd59ab18
PP
2271PP/10 Use sig_atomic_t for flags set from signal handlers.
2272 Check getgroups() return and improve debugging.
2273 Fixed developed for diagnosis in bug 927 (which turned out to be
2274 a kernel bug).
2275
332f5cf3
PP
2276PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2277 Patch from Mark Zealey.
2278
29cfeb94
PP
2279PP/12 Bugzilla 1056: Improved spamd server selection.
2280 Patch from Mark Zealey.
2281
660242ad
PP
2282PP/13 Bugzilla 1086: Deal with maildir quota file races.
2283 Based on patch from Heiko Schlittermann.
2284
bc4bc4c5
PP
2285PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2286 Patch from Uwe Doering, sign-off by Michael Haardt.
2287
2e64baa9
NM
2288NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2289 variable declaration deep within a block. Bug and patch from
2290 Dennis Davis.
2291
4c04137d 2292PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2293
6bac1a9a
PP
2294PP/16 Make DISABLE_DKIM build knob functional.
2295
552193f0
NM
2296NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2297 Patch by Simon Arlott
baeee2c1 2298
1b587e48
TF
2299TF/03 Fix valgrind.h portability to C89 compilers that do not support
2300 variable argument macros. Our copy now differs from upstream.
2301
aa097c4c 2302
8c07b69f
TF
2303Exim version 4.74
2304-----------------
2305
2306TF/01 Failure to get a lock on a hints database can have serious
2307 consequences so log it to the panic log.
2308
c0ea85ab
TF
2309TF/02 Log LMTP confirmation messages in the same way as SMTP,
2310 controlled using the smtp_confirmation log selector.
2311
0761d44e
TF
2312TF/03 Include the error message when we fail to unlink a spool file.
2313
0a349494
PP
2314DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2315 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2316 for maintaining out-of-tree patches for some time.
2317
2318PP/01 Bugzilla 139: Documentation and portability issues.
2319 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2320 Handle per-OS dynamic-module compilation flags.
2321
fea24b2e
PP
2322PP/02 Let /dev/null have normal permissions.
2323 The 4.73 fixes were a little too stringent and complained about the
2324 permissions on /dev/null. Exempt it from some checks.
2325 Reported by Andreas M. Kirchwitz.
2326
6545de78
PP
2327PP/03 Report version information for many libraries, including
2328 Exim version information for dynamically loaded libraries. Created
2329 version.h, now support a version extension string for distributors
2330 who patch heavily. Dynamic module ABI change.
2331
1670ef10
PP
2332PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2333 privilege escalation vulnerability whereby the Exim run-time user
2334 can cause root to append content of the attacker's choosing to
2335 arbitrary files.
2336
c0886197
PP
2337PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2338 (Wolfgang Breyha)
2339
b7487bce
PP
2340PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2341 If dropping privileges for untrusted macros, we disabled normal logging
2342 on the basis that it would fail; for the Exim run-time user, this is not
2343 the case, and it resulted in successful deliveries going unlogged.
2344 Fixed. Reported by Andreas Metzler.
2345
8c07b69f 2346
97fd1e48 2347Exim version 4.73
ed7f7860 2348-----------------
97fd1e48
PP
2349
2350PP/01 Date: & Message-Id: revert to normally being appended to a message,
2351 only prepend for the Resent-* case. Fixes regression introduced in
2352 Exim 4.70 by NM/22 for Bugzilla 607.
2353
6901c596
PP
2354PP/02 Include check_rfc2047_length in configure.default because we're seeing
2355 increasing numbers of administrators be bitten by this.
2356
a8c8d6b5
JJ
2357JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2358
77bb000f
PP
2359PP/03 Bugzilla 994: added openssl_options main configuration option.
2360
a29e5231
PP
2361PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2362
ec5a0394 2363PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2364
55c75993
PP
2365PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2366
453a6645 2367PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2368 without a peer certificate, leading to a segfault because of an
2369 assumption that peers always have certificates. Be a little more
453a6645
PP
2370 paranoid. Problem reported by Martin Tscholak.
2371
8544e77a
PP
2372PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2373 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2374 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2375 CL also introduces -bmalware, various -d+acl logging additions and
2376 more caution in buffer sizes.
8544e77a 2377
83e029d5
PP
2378PP/09 Implemented reverse_ip expansion operator.
2379
ed7f7860
PP
2380PP/10 Bugzilla 937: provide a "debug" ACL control.
2381
7d9f747b
PP
2382PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2383
4b2241d2
PP
2384PP/12 Bugzilla 973: Implement --version.
2385
10385c15
PP
2386PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2387
dbc4b90d
PP
2388PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2389
532be449
PP
2390PP/15 Bugzilla 816: support multiple condition rules on Routers.
2391
6a8de854 2392PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2393 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2394 ignore trailing whitespace.
6a8de854 2395
5dc43717
JJ
2396JJ/02 prevent non-panic DKIM error from being sent to paniclog
2397
2398JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2399 "exim" to be used
55c75993 2400
3346ab01
PP
2401PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2402 Notification from Dr Andrew Aitchison.
2403
491fab4c
PP
2404PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2405 ExtendedDetectionInfo response format.
2406 Notification from John Horne.
2407
13eb9497
PP
2408PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2409 compatible.
2410
2411PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2412 XSL and documented dependency on system catalogs, with examples of how
2413 it normally works.
2414
7f36d675
DW
2415DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2416 access.
2417
c1d94452
DW
2418DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2419 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2420 configuration file which is writeable by the Exim user or group.
2421
e2f5dc15
DW
2422DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2423 of configuration files to cover files specified with the -C option if
2424 they are going to be used with root privileges, not just the default
2425 configuration file.
2426
cd25e41d
DW
2427DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2428 option (effectively making it always true).
2429
261dc43e
DW
2430DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2431 files to be used while preserving root privileges.
2432
fa32850b
DW
2433DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2434 that rogue child processes cannot use them.
2435
79d4bc3d
PP
2436PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2437 run-time user, instead of root.
2438
43236f35 2439PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2440 Exim run-time user without dropping privileges.
2441
fb08281f
DW
2442DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2443 result string, instead of calling string_vformat() twice with the same
2444 arguments.
3346ab01 2445
74935b98
DW
2446DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2447 for other users. Others should always drop root privileges if they use
2448 -C on the command line, even for a whitelisted configure file.
2449
90b6341f
DW
2450DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2451
57730b52
ML
2452NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2453
66581d1e 2454
465e92cf
JJ
2455Exim version 4.72
2456-----------------
2457
453a6645
PP
2458JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2459 $data_path, and $header_path variables; fixed documentation bugs and
2460 typos
465e92cf 2461
453a6645
PP
2462JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2463 exipick to access non-standard spools, including the "frozen" queue
2464 (Finput)
edae0343 2465
9bd3e22c
NM
2466NM/01 Bugzilla 965: Support mysql stored procedures.
2467 Patch from Alain Williams
2468
bb576ff7
NM
2469NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2470
5a1a5845
NM
2471NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2472 Patch from Andreas Metzler
2473
981a9fad
NM
2474NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2475 Patch from Kirill Miazine
2476
7fc497ee
NM
2477NM/05 Bugzilla 671: Added umask to procmail example.
2478
1a41defa
JJ
2479JJ/03 installed exipick 20100323.0, fixing doc bug
2480
a466095c 2481NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2482 directory. Notification and patch from Dan Rosenberg.
a466095c 2483
94a6bd0b
NM
2484TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2485
2486TK/02 Improve log output when DKIM signing operation fails.
2487
2488MH/01 Treat the transport option dkim_domain as a colon separated
2489 list, not as a single string, and sign the message with each element,
2490 omitting multiple occurences of the same signer.
2491
c1b141a8
NM
2492NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2493 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2494
b26eacf1 2495NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2496 Patch by Simon Arlott
2497
179c5980 2498PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2499 MBX locking. Notification from Dan Rosenberg.
179c5980 2500
9bd3e22c 2501
7c6d71af
NM
2502Exim version 4.71
2503-----------------
2504
7d9f747b 2505TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2506
f013fb92
NM
2507NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2508
0eb8eedd
NM
2509NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2510
663ee6d9
NM
2511NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2512
177ebd9b
NM
2513NM/04 Bugzilla 915: Flag broken perl installation during build.
2514
7c6d71af 2515
210f147e
NM
2516Exim version 4.70
2517-----------------
2518
cdd3bb85 2519TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2520 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2521
2522TK/02 Write list of recipients to X-Envelope-Sender header when building
2523 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2524 Hirsch).
cdd3bb85
TK
2525
2526TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2527 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2528 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2529
2530TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2531 by Mark Daniel Reidel <mr@df.eu>.
2532
210f147e
NM
2533NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2534 When building exim an external PCRE library is now needed -
2535 PCRE is a system library on the majority of modern systems.
2536 See entry on PCRE_LIBS in EDITME file.
2537
deafd5b3
NM
2538NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2539 conversation. Added nologin parameter to request.
7d9f747b 2540 Patch contributed by Kirill Miazine.
deafd5b3 2541
089793a4
TF
2542TF/01 Do not log submission mode rewrites if they do not change the address.
2543
5f16ca82
TF
2544TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2545
dae9d94e 2546NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2547 log files in place. Contributed by Roberto Lima.
dae9d94e 2548
7d9f747b 2549NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2550
06864c44
TF
2551TF/03 Bugzilla 615: When checking the local_parts router precondition
2552 after a local_part_suffix or local_part_prefix option, Exim now
2553 does not use the address's named list lookup cache, since this
2554 contains cached lookups for the whole local part.
2555
65a7d8c3 2556NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2557 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2558
23510047 2559TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2560
7d9f747b 2561NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2562
7d8eec3a 2563NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2564 Patch provided by Jan Srzednicki.
6c588e74 2565
89dec7b6
TF
2566TF/05 Leading white space used to be stripped from $spam_report which
2567 wrecked the formatting. Now it is preserved.
5f28a6e8 2568
a99de90c
TF
2569TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2570 that they are available at delivery time.
2571
e2803e40
TF
2572TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2573
7199e1ee
TF
2574TF/08 TLS error reporting now respects the incoming_interface and
2575 incoming_port log selectors.
2576
e276e04b
TF
2577TF/09 Produce a more useful error message if an SMTP transport's hosts
2578 setting expands to an empty string.
2579
ce552449 2580NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2581 Patch provided by Phil Pennock.
ce552449 2582
e765a0f1 2583NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2584 Patch provided by Richard Godbee.
e765a0f1 2585
4f054c63 2586NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2587 acl_smtp_notquit, added index entry.
4f054c63 2588
7d9f747b
PP
2589NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2590 Patch provided by Eugene Bujak.
24c929a2 2591
7d9f747b
PP
2592NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2593 accept(). Patch provided by Maxim Dounin.
cf73943b 2594
b52bc06e 2595NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2596 Patch provided by Phil Pennock.
b52bc06e 2597
447de4b0
NM
2598NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2599
4c69d561 2600NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2601 Patch provided by Brad "anomie" Jorsch.
4c69d561 2602
d5c39246 2603NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2604 Patch provided by Dean Brooks.
9b989985 2605
0b23848a
TK
2606TK/05 Add native DKIM support (does not depend on external libraries).
2607
8f3414a1 2608NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2609 Patch provided by Graeme Fowler.
e2aacdfd 2610
fb6f955d
NM
2611NM/16 Bugzilla 851: Documentation example syntax fix.
2612
2613NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2614
7d9f747b
PP
2615NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2616 lsearch.
dbb0bf41 2617
7d9f747b
PP
2618NM/19 Bugzilla 745: TLS version reporting.
2619 Patch provided by Phil Pennock.
f3766eb5 2620
7d9f747b
PP
2621NM/20 Bugzilla 167: bool: condition support.
2622 Patch provided by Phil Pennock.
36f12725 2623
7d9f747b
PP
2624NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2625 clients. Patch provided by Phil Pennock.
e6060e2c 2626
7d9f747b
PP
2627NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2628 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2629
7d9f747b
PP
2630NM/23 Bugzilla 687: Fix misparses in eximstats.
2631 Patch provided by Heiko Schlittermann.
d5c13d66 2632
7d9f747b
PP
2633NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2634 Patch provided by Heiko Schlittermann.
b2335c0b 2635
7d9f747b 2636NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2637 plus update to original patch.
f4cd9433 2638
7d9f747b 2639NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2640
7d9f747b
PP
2641NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2642 Patch provided by David Brownlee.
8dc71ab3 2643
7d9f747b 2644NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2645
7d9f747b 2646NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2647
7d9f747b 2648NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2649
7d9f747b 2650NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2651
17792b53 2652NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2653 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2654
7d9f747b
PP
2655NM/33 Bugzilla 898: Transport filter timeout fix.
2656 Patch by Todd Rinaldo.
52383f8f 2657
91576cec 2658NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2659 Patch by Serge Demonchaux.
5ca6d115 2660
7d9f747b
PP
2661NM/35 Bugzilla 39: Base64 decode bug fixes.
2662 Patch by Jakob Hirsch.
baee9eee 2663
7d9f747b 2664NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2665
7d9f747b 2666NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2667
7d9f747b 2668NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2669
7d9f747b 2670NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2671
deafd5b3 2672
47db1125
NM
2673Exim version 4.69
2674-----------------
2675
4b3504d0
TK
2676TK/01 Add preliminary DKIM support. Currently requires a forked version of
2677 ALT-N's libdkim that I have put here:
2678 http://duncanthrax.net/exim-experimental/
2679
2680 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2681 were called 'true' and it seems that C99 defines that as a reserved
2682 keyword to be used with 'bool' variable types. That means you could
2683 not include C99-style headers which use bools without triggering
2684 build errors in sieve.c.
2685
81ea09ca
NM
2686NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2687 as mailq or other aliases. Changed the --help handling significantly
2688 to do whats expected. exim_usage() emits usage/help information.
2689
f13cddcb
SC
2690SC/01 Added the -bylocaldomain option to eximstats.
2691
7d9f747b 2692NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2693
7d9f747b 2694NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2695
7d9f747b 2696NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2697
2698
eb4c0de6
PH
2699Exim version 4.68
2700-----------------
2701
2702PH/01 Another patch from the Sieve maintainer.
2703
6a3bceb1
PH
2704PH/02 When an IPv6 address is converted to a string for single-key lookup
2705 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2706 dots are used instead of colons so that keys in lsearch files need not
2707 contain colons. This was done some time before quoting was made available
2708 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2709 (notated using the quote facility) so as to distinguish them from IPv4
2710 keys. This meant that lookups for IP addresses in host lists did not work
2711 for iplsearch lookups.
2712
2713 This has been fixed by arranging for IPv6 addresses to be expressed with
2714 colons if the lookup type is iplsearch. This is not incompatible, because
2715 previously such lookups could never work.
2716
4c04137d 2717 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2718 ordinary lsearch keys. However, making the change in all cases is
2719 incompatible and would probably break a number of configurations.
2720
2e30fa9d
TK
2721TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2722 version.
2723
0806a9c5
MH
2724MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2725 conversion specification without a maximum field width, thereby enabling
2726 a rogue spamd server to cause a buffer overflow. While nobody in their
2727 right mind would setup Exim to query an untrusted spamd server, an
2728 attacker that gains access to a server running spamd could potentially
2729 exploit this vulnerability to run arbitrary code as the Exim user.
2730
ae276964
TK
2731TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2732 $primary_hostname instead of what libspf2 thinks the hosts name is.
2733
0f2cbd1b
MH
2734MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2735 a directory entry by the name of the lookup key. Previously, if a
2736 symlink pointed to a non-existing file or a file in a directory that
2737 Exim lacked permissions to read, a lookup for a key matching that
2738 symlink would fail. Now it is enough that a matching directory entry
2739 exists, symlink or not. (Bugzilla 503.)
2740
2b85bce7
PH
2741PH/03 The body_linecount and body_zerocount variables are now exported in the
2742 local_scan API.
2743
93655c46
PH
2744PH/04 Added the $dnslist_matched variable.
2745
6c512171
PH
2746PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2747 This means they are set thereafter only if the connection becomes
2748 encrypted.
2749
2750PH/06 Added the client_condition to authenticators so that some can be skipped
2751 by clients under certain conditions.
2752
aa6dc513
PH
2753PH/07 The error message for a badly-placed control=no_multiline_responses left
2754 "_responses" off the end of the name.
2755
a96603a0
PH
2756PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2757
8f240103
PH
2758PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2759 (without spaces) instead of just copying the configuration text.
2760
2761PH/10 Added the /noupdate option to the ratelimit ACL condition.
2762
d677b2f2
PH
2763PH/11 Added $max_received_linelength.
2764
d52120f2
PH
2765PH/12 Added +ignore_defer and +include_defer to host lists.
2766
64f2600a
PH
2767PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2768 way in which PCRE > 7.0 is built.
2769
8669f003
PH
2770PH/14 Implemented queue_only_load_latch.
2771
a4dc33a8
PH
2772PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2773 MAIL command. The effect was to mangle the value on 64-bit systems.
2774
d6a60c0f
PH
2775PH/16 Another patch from the Sieve maintainer.
2776
8f128379
PH
2777PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2778
8932dffe
PH
2779PH/18 If a system quota error occurred while trying to create the file for
2780 a maildir delivery, the message "Mailbox is full" was not appended to the
2781 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2782 only to a quota excession during the actual writing of the file.
d6a60c0f 2783
ddea74fa 2784PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2785 characters?) which causes problems in log lines. The DN values are now
2786 passed through string_printing() before being added to log lines.
2787
ddea74fa 2788PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2789 and InterBase are left for another time.)
2790
ddea74fa
PH
2791PH/21 Added message_body_newlines option.
2792
ce9f225c
PH
2793PH/22 Guard against possible overflow in moan_check_errorcopy().
2794
19897d52
PH
2795PH/23 POSIX allows open() to be a macro; guard against that.
2796
bc64a74d
PH
2797PH/24 If the recipient of an error message contained an @ in the local part
2798 (suitably quoted, of course), incorrect values were put in $domain and
2799 $local_part during the evaluation of errors_copy.
2800
eb4c0de6 2801
b4ed4da0
PH
2802Exim version 4.67
2803-----------------
2804
22ad45c9
MH
2805MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2806 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2807 Jan Srzednicki.
2808
b4ed4da0
PH
2809PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2810 issue a MAIL command.
2811
431b7361
PH
2812PH/02 In an ACL statement such as
2813
2814 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2815
2816 if a client was not listed at all, or was listed with a value other than
2817 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2818 the condition was not true (as it should be), so access was not denied.
2819 The bug was that the ! inversion was incorrectly passed on to the second
2820 item. This has been fixed.
2821
2822PH/03 Added additional dnslists conditions == and =& which are different from
2823 = and & when the dns lookup returns more than one IP address.
2824
83da1223
PH
2825PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2826 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2827
54fc8428
PH
2828PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2829 FSYNC, which compiles an option called disable_fsync that allows for
2830 bypassing fsync(). The documentation is heavily laced with warnings.
2831
34c5e8dd
SC
2832SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2833
bbe15da8
PH
2834PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2835 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2836 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2837 including adding "make clean"; (3) Added -fPIC when compiling the test
2838 dynamically loaded module, to get rid of a warning.
2839
0e8a9471
MH
2840MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2841 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2842 = 0s. The bug is otherwise harmless.
2843
f0872424
PH
2844PH/07 There was a bug in the dovecot authenticator such that the value of
2845 $auth1 could be overwritten, and so not correctly preserved, after a
2846 successful authentication. This usually meant that the value preserved by
2847 the server_setid option was incorrect.
2848
b01dd148
PH
2849PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2850
6bf342e1
PH
2851PH/09 Installed PCRE release 7.0.
2852
273f34d0
PH
2853PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2854 run for batched SMTP input. It is now run at the start of every message
2855 in the batch. While fixing this I discovered that the process information
2856 (output by running exiwhat) was not always getting set for -bs and -bS
2857 input. This is fixed, and it now also says "batched" for BSMTP.
2858
cf8b11a5
PH
2859PH/11 Added control=no_pipelining.
2860
41c7c167
PH
2861PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2862 patch, slightly modified), and move the expansion of helo_data till after
2863 the connection is made in the smtp transport (so it can use these
2864 values).
2865
9c57cbc0
PH
2866PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2867
f3f065bb
PH
2868PH/14 Added log_selector = +pid.
2869
047bdd8c
PH
2870PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2871
0ce9abe6
PH
2872PH/16 Add ${if forany and ${if forall.
2873
0e22dfd1
PH
2874PH/17 Added dsn_from option to vary the From: line in DSNs.
2875
4c590bd1
PH
2876PH/18 Flush SMTP output before performing a callout, unless control =
2877 no_callout_flush is set.
2878
09945f1e
PH
2879PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2880 was true (the default) a successful delivery failed to delete the retry
2881 item, thus causing premature timeout of the address. The bug is now
2882 fixed.
2883
c51b8e75
PH
2884PH/20 Added hosts_avoid_pipelining to the smtp transport.
2885
e28326d8 2886PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2887 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2888 other ACL rejections are.
2889
75b1493f
PH
2890PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2891 with slight modification.
2892
7c5214ec
PH
2893PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2894 draft, changing the syntax and factoring some duplicate code".
2895
4311097e
PH
2896PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2897 for deliveries of the second and subsequent messages over the same SMTP
2898 connection.
2899
29f89cad
PH
2900PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2901 ${reduce, with only minor "tidies".
2902
5e687460
SC
2903SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2904
c3611384
PH
2905PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2906 expansion side effects.
2907
5a11a7b4
PH
2908PH/27 When a message times out after an over-quota error from an Exim-imposed
2909 quota, the bounce message says "mailbox is full". This message was not
2910 being given when it was a system quota that was exceeded. It now should
2911 be the same.
2912
0e20aff9
MH
2913MH/03 Made $recipients available in local_scan(). local_scan() already has
2914 better access to the recipient list through recipients_list[], but
2915 $recipients can be useful in postmaster-provided expansion strings.
2916
ca86f471
PH
2917PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2918 in the case of a MAIL command with additional options following the
2919 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2920 were accidentally chopped off.
2921
a14e5636
PH
2922PH/29 SMTP synchronization checks are implemented when a command is read -
2923 there is a check that no more input is waiting when there shouldn't be
2924 any. However, for some commands, a delay in an ACL can mean that it is
2925 some time before the response is written. In this time, more input might
2926 arrive, invalidly. So now there are extra checks after an ACL has run for
2927 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2928 pipelining has not been advertised.
2929
ec95d1a6
PH
2930PH/30 MH's patch to allow iscntrl() characters to be list separators.
2931
42855d71
PH
2932PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2933 returned in the SMTP response when smtp_return_error_details was false.
2934 This has been fixed.
2935
57c2c631
PH
2936PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2937 instead of the C I/O that was originally supplied, because problems were
2938 reported on Solaris.
2939
58c01c94
PH
2940PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2941 Exim which did not show up earlier: it was assuming that a call to
2942 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2943 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2944 was a macro that became an assignment, so it seemed to work. This has
2945 changed to a proper function call with a void return, hence the compile
2946 error. Exim's code has been fixed.
2947
dee5a20a
PH
2948PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2949 cpus.
2950
d2ee6114
PH
2951PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2952
b2d5182b
PH
2953PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2954
79749a79
PH
2955PH/37 If a message is not accepted after it has had an id assigned (e.g.
2956 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2957 "Completed" line in the log. When some messages of this type were
2958 selected by exigrep, they were listed as "not completed". Others were
2959 picked up by some special patterns. I have improved the selection
2960 criteria to be more general.
79749a79 2961
c456d9bb
PH
2962PH/38 The host_find_failed option in the manualroute router can now be set
2963 to "ignore", to completely ignore a host whose IP address cannot be
2964 found. If all hosts are ignored, the behaviour is controlled by the new
2965 host_all_ignored option.
2966
cd9868ec
PH
2967PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2968 homing or because of multiple MX records with /mx) generated more than
2969 one IP address, and the following item turned out to be the local host,
2970 all the secondary addresses of the first item were incorrectly removed
2971 from the list, along with the local host and any following hosts (which
2972 is what is supposed to happen).
2973
ebeaf996
PH
2974PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2975 whoever called Exim into the -H file. In the case of the daemon it was
2976 behaving confusingly. When first started, it used values for whoever
2977 started the daemon, but after a SIGHUP it used the Exim user (because it
2978 calls itself on a restart). I have changed the code so that it now always
2979 uses the Exim user.
2980
2679d413
PH
2981PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2982 message are rejected with the same error (e.g. no authentication or bad
2983 sender address), and a DATA command is nevertheless sent (as can happen
2984 with PIPELINING or a stupid MUA), the error message that was given to the
2985 RCPT commands is included in the rejection of the DATA command. This is
2986 intended to be helpful for MUAs that show only the final error to their
2987 users.
2988
84024b72
PH
2989PH/42 Another patch from the Sieve maintainer.
2990
8005d38e
SC
2991SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2992 Eximstats - Fixed some broken HTML links and added missing column headers
2993 (Jez Hancock).
2994 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2995 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2996
3298c6c6
SC
2997SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2998
a43a27c5
PH
2999PH/43 Yet another patch from the Sieve maintainer.
3000
58eb016e 3001PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
3002 the response to the final '.' that terminates a message, but only in the
3003 case where the client has not sent further data following the '.'
3004 (unfortunately, this is allowed). However, in many cases there won't be
3005 any further data because there won't be any more messages to send. A call
3006 to select() can be used: if it shows that the input is "ready", there is
3007 either input waiting, or the socket has been closed. An attempt to read
3008 the next input character can distinguish the two cases. Previously, Exim
58eb016e 3009 would have sent an OK response which the client would never have see.
563b63fa
PH
3010 This could lead to message repetition. This fix should cure that, at
3011 least in a lot of common cases.
58eb016e 3012
b43a74ea
PH
3013PH/45 Do not advertise STARTTLS in response to HELP unless it would be
3014 advertised in response to EHLO.
3015
b4ed4da0 3016
5dd1517f
PH
3017Exim version 4.66
3018-----------------
3019
3020PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
3021 fixed by 4.65/MH/01 (is this a record?) are fixed:
3022
3023 (i) An empty string was always treated as zero by the numeric comparison
3024 operators. This behaviour has been restored.
3025
3026 (ii) It is documented that the numeric comparison operators always treat
3027 their arguments as decimal numbers. This was broken in that numbers
3028 starting with 0 were being interpreted as octal.
3029
3030 While fixing these problems I realized that there was another issue that
3031 hadn't been noticed. Values of message_size_limit (both the global option
3032 and the transport option) were treated as octal if they started with 0.
3033 The documentation was vague. These values are now always treated as
3034 decimal, and I will make that clear in the documentation.
3035
3036
93cfa765
TK
3037Exim version 4.65
3038-----------------
3039
3040TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
3041 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
3042 versions. (#438)
3043
d6066548
MH
3044MH/01 Don't check that the operands of numeric comparison operators are
3045 integers when their expansion is in "skipping" mode (fixes bug
3046 introduced by 4.64-PH/07).
3047
4362ff0d
PH
3048PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
3049 child addresses, Exim now panics and dies. Previously, because the count
3050 is held in a short int, deliveries were likely to be lost. As such a
3051 large number of recipients for a single message is ridiculous
3052 (performance will be very, very poor), I have chosen to impose a limit
3053 rather than extend the field.
3054
93cfa765 3055
944e9e9c
TF
3056Exim version 4.64
3057-----------------
aa41d2de 3058
21d74bd9
TK
3059TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
3060 leftover -K file (the existence of which was triggered by #402).
3061 While we were at it, introduced process PID as part of the -K
3062 filename. This should rule out race conditions when creating
3063 these files.
3064
3065TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
3066 processing considerably. Previous code took too long for large mails,
3067 triggering a timeout which in turn triggers #401.
3068
3069TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
3070 in the DK code in transports.c. sendfile() is not really portable,
3071 hence the _LINUX specificness.
944e9e9c
TF
3072
3073TF/01 In the add_headers option to the mail command in an Exim filter,
3074 there was a bug that Exim would claim a syntax error in any
3075 header after the first one which had an odd number of characters
3076 in the field name.
3077
2b1c6e3a
PH
3078PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
3079 callout verification, Exim cached a "reject" for the entire domain. This
3080 is correct for most verifications, but it is not correct for a recipient
3081 verification with use_sender or use_postmaster set, because in that case
3082 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
3083 case of MAIL FROM:<> rejection from other early rejections (e.g.
3084 rejection of HELO). When verifying a recipient using a non-null MAIL
3085 address, the cache is ignored if it shows MAIL FROM:<> rejection.
3086 Whatever the result of the callout, the value of the domain cache is
3087 left unchanged (for any other kind of callout, getting as far as trying
3088 RCPT means that the domain itself is ok).
3089
1f872c80
PH
3090PH/02 Tidied a number of unused variable and signed/unsigned warnings that
3091 gcc 4.1.1 threw up.
3092
3093PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
3094 manifest itself as EPIPE rather than ECONNECT. When tidying away a
3095 session, the daemon ignores ECONNECT errors and logs others; it now
3096 ignores EPIPE as well.
3097
d203e649
PH
3098PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
3099 (quoted-printable decoding).
3100
cc2ed8f7 3101PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 3102 later the small subsequent patch to fix an introduced bug.
f951fd57 3103
ddfcd446
PH
3104PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
3105
d45b1de8
PH
3106PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
3107
3108PH/08 An error is now given if message_size_limit is specified negative.
3109
38a0a95f 3110PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 3111 to be given (somewhat) arbitrary names.
38a0a95f 3112
a2405d83
JJ
3113JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
3114 in 4.64-PH/09.
3115
3116JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
3117 miscellaneous code fixes
3118
6ea85e9a
PH
3119PH/10 Added the log_reject_target ACL modifier to specify where to log
3120 rejections.
3121
26da7e20
PH
3122PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
3123 hostname. This is wrong, because it relates to the incoming message (and
3124 probably the interface on which it is arriving) and not to the outgoing
3125 callout (which could be using a different interface). This has been
3126 changed to use the value of the helo_data option from the smtp transport
3127 instead - this is what is used when a message is actually being sent. If
3128 there is no remote transport (possible with a router that sets up host
3129 addresses), $smtp_active_hostname is used.
6ea85e9a 3130
14aa5a05 3131PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 3132 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
3133 (a) The code assumed that strncpy() returns a negative number on buffer
3134 overflow, which isn't the case. Replaced with Exim's string_format()
3135 function.
3136 (b) There were several signed/unsigned issues. I just did the minimum
3137 hacking in of casts. There is scope for a larger refactoring.
3138 (c) The code used strcasecmp() which is not a standard C function.
3139 Replaced with Exim's strcmpic() function.
3140 (d) The code set only $1; it now sets $auth1 as well.
3141 (e) A simple test gave the error "authentication client didn't specify
3142 service in request". It would seem that Dovecot has changed its
3143 interface. Fortunately there's a specification; I followed it and
3144 changed what the client sends and it appears to be working now.
3145
ff75a1f7
PH
3146PH/13 Added $message_headers_raw to provide the headers without RFC 2047
3147 decoding.
3148
e6f6568e
PH
3149PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
3150 address A is aliased to B and C, where B exists and C does not. Without
3151 -v the output is "A verified" because verification stops after a
3152 successful redirection if more than one address is generated. However,
3153 with -v the child addresses are also verified. Exim was outputting "A
3154 failed to verify" and then showing the successful verification for C,
3155 with its parentage. It now outputs "B failed to verify", showing B's
3156 parentage before showing the successful verification of C.
3157
d6f6e0dc
PH
3158PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
3159 look up a TXT record in a specific list after matching in a combined
3160 list.
3161
322050c2
PH
3162PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
3163 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
3164 they consult the DNS. I had assumed they would set it the way they
3165 wanted; and indeed my experiments on Linux seem to show that in some
3166 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
3167 To be on the safe side, however, I have now made the interface to
3168 host_find_byname() similar to host_find_bydns(), with an argument
3169 containing the DNS resolver options. The host_find_byname() function now
3170 sets these options at its start, just as host_find_bydns() does. The smtp
3171 transport options dns_qualify_single and dns_search_parents are passed to
3172 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
3173 of host_find_byname() use the default settings of RES_DEFNAMES
3174 (qualify_single) but not RES_DNSRCH (search_parents).
3175
08955dd3
PH
3176PH/17 Applied (a modified version of) Nico Erfurth's patch to make
3177 spool_read_header() do less string testing, by means of a preliminary
3178 switch on the second character of optional "-foo" lines. (This is
3179 overdue, caused by the large number of possibilities that now exist.
3180 Originally there were few.) While I was there, I also converted the
3181 str(n)cmp tests so they don't re-test the leading "-" and the first
3182 character, in the hope this might squeeze out yet more improvement.
3183
1eccaa59
PH
3184PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3185 flag allowing group syntax was set by the header_syntax check but not
3186 turned off, possible causing trouble later; (2) The flag was not being
3187 set at all for the header_verify test, causing "group"-style headers to
3188 be rejected. I have now set it in this case, and also caused header_
3189 verify to ignore an empty address taken from a group. While doing this, I
3190 came across some other cases where the code for allowing group syntax
3191 while scanning a header line wasn't quite right (mostly, not resetting
3192 the flag correctly in the right place). These bugs could have caused
3193 trouble for malformed header lines. I hope it is now all correct.
3194
602e59e5
PH
3195PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3196 with the "reply" argument non-NULL. The code, however (which originally
3197 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3198 but it didn't always do it. This confused somebody who was copying the
3199 code for some other use. I have removed all the tests.
3200
411ef850
PH
3201PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3202 feature that was used to support insecure browsers during the U.S. crypto
3203 embargo. It requires special client support, and Exim is probably the
3204 only MTA that supported it -- and would never use it because real RSA is
3205 always available. This code has been removed, because it had the bad
3206 effect of slowing Exim down by computing (never used) parameters for the
3207 RSA_EXPORT functionality.
3208
7befa435
PH
3209PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3210 authenticator to fail if there's a tab character in the incoming data
3211 (there should never be unless someone is messing about, as it's supposed
3212 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3213 if the connection is using TLS or if the remote IP is the same as the
3214 local IP, and the "valid-client-cert option" if a client certificate has
3215 been verified.
3216
48da4259 3217PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3218 authenticators. This can be used for authorization after authentication
3219 succeeds. (In the case of plaintext, it servers for both authentication
3220 and authorization.)
3221
48da4259
PH
3222PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3223 if any retry times were supplied.
3224
d1d5595c
PH
3225PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3226 connection, where there is no client IP address to check. In this
3227 situation, the verify now always succeeds.
3228
0ef732d9
PH
3229PH/25 Applied John Jetmore's -Mset patch.
3230
328895cc
PH
3231PH/26 Added -bem to be like -Mset, but loading a message from a file.
3232
fd700877
PH
3233PH/27 In a string expansion for a processed (not raw) header when multiple
3234 headers of the same name were present, leading whitespace was being
3235 removed from all of them, but trailing whitespace was being removed only
3236 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3237 before concatenation. Completely empty headers in a concatenation (as
3238 before) are ignored.
fd700877 3239
8dce1a6f
PH