Follow CNAME chains only one step. Bug 2264
[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
d99f54e4
JH
8Exim version 4.92
9-----------------
10
9723f966
JH
11JH/01 Remove code calling the customisable local_scan function, unless a new
12 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
13
14JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
JH
15 non-signal-safe functions being used.
16
17JH/03 Bug 2269: When presented with a received message having a stupidly large
18 number of DKIM-Signature headers, disable DKIM verification to avoid
19 a resource-consumption attack. The limit is set at twenty.
9723f966 20
ea7b1f16
JH
21JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
22 report of oldest_pass in ${authres } in consequence, and separate out
23 some descriptions of reasons for verification fail.
24
cfbb0d24
JH
25JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
26 files in the spool were present and unlocked. A queue-runner could spot
27 them, resulting in a duplicate delivery. Fix that by doing the unlock
0488984d
JH
28 after the unlink. Investigation by Tim Stewart. Take the opportunity to
29 add more error-checking on spoolfile handling while that code is being
cfbb0d24
JH
30 messed with.
31
85defcf0
PP
32PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
33 No known attacks, no CVE, this is defensive hardening.
34
1bd642c2
JH
35JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
36 a queue-runner could start a delivery while other operations were ongoing.
37 Cutthrough delivery was a common victim, resulting in duplicate delivery.
38 Found and investigated by Tim Stewart. Fix by using the open message data
39 file handle rather than opening another, and not locally closing it (which
40 releases a lock) for that case, while creating the temporary .eml format
41 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
42
2ddb4094
JH
43JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
44 $sender_verify_failure/$recipient_verify_failure to "random".
45
1613fd68
JH
46JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
47 legitimate.
48
e6057245
JH
49JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
50 Previously this would segfault.
51
7b9822bf
JH
52JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
53 segfault.
54
d8d9f930
JH
55JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
56 like zero, since the resolver should be doing this for us, But we need one
57 as a CNAME but no MX presence gets the CNAME returned; we need to check
58 that doesn't point to an MX to declare it "no MX returned" rather than
59 "error, loop". A new main option is added so the older capability of
60 following some limited number of chain links is maintained.
61
9723f966 62
bb264f6b
JH
63Exim version 4.91
64-----------------
459fca58 65
c39c8870 66GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
JH
67 When redis_servers is set to a list of > 1 element, and the Redis servers
68 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
69 case of MOVED into a DEFER case instead, thus moving the query onto the
70 next server in the list. For a cluster of N elements, all N servers must
71 be defined in redis_servers.
c39c8870 72
0800ef83
GF
73GF/02 Catch and remove uninitialized value warning in exiqsumm
74 Check for existence of @ARGV before looking at $ARGV[0]
75
459fca58
JH
76JH/01 Replace the store_release() internal interface with store_newblock(),
77 which internalises the check required to safely use the old one, plus
78 the allocate and data copy operations duplicated in both (!) of the
79 extant use locations.
80
944e8b37
JH
81JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
82 modifier. This matches the restriction on the commandline.
83
bbfb5dcd
JH
84JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
85 Previously only the last row was returned.
86
a05d3e34
JH
87JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
88 we assumed that tags in the header were well-formed, and parsed the
89 element content after inspecting only the first char of the tag.
90 Assumptions at that stage could crash the receive process on malformed
91 input.
92
ce93c6d8
JH
93JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
94 While running the DKIM ACL we operate on the Permanent memory pool so that
95 variables created with "set" persist to the DATA ACL. Also (at any time)
96 DNS lookups that fail create cache records using the Permanent pool. But
97 expansions release any allocations made on the current pool - so a dnsdb
98 lookup expansion done in the DKIM ACL releases the memory used for the
99 DNS negative-cache, and bad things result. Solution is to switch to the
100 Main pool for expansions.
101 While we're in that code, add checks on the DNS cache during store_reset,
102 active in the testsuite.
103 Problem spotted, and debugging aided, by Wolfgang Breyha.
104
2577f55f
JH
105JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
106 When none of the hosts presented to a transport match an already-open
107 connection, close it and proceed with the list. Previously we would
108 queue the message. Spotted by Lena with Yahoo, probably involving
109 round-robin DNS.
110
5b6f7658
JH
111JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
112 Previously a spurious "250 OK id=" response was appended to the proper
113 failure response.
114
c11d665d
JH
115JH/08 The "support for" informational output now, which built with Content
116 Scanning support, has a line for the malware scanner interfaces compiled
117 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
118
119JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
120 by the template makefile "src/EDITME". The "STREAM" support for an older
121 ClamAV interface method is removed.
c11d665d 122
ba0e37b1
JH
123JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
124 rows affected is given instead).
125
96508de1
JH
126JH/11 The runtime Berkeley DB library version is now additionally output by
127 "exim -d -bV". Previously only the compile-time version was shown.
128
06fdb9f7
JH
129JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
130 SMTP connection. Previously, when one had more receipients than the
131 first, an abortive onward connection was made. Move to full support for
132 multiple onward connections in sequence, handling cutthrough connection
133 for all multi-message initiating connections.
134
f83a760f
JH
135JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
136 routers. Previously, a multi-recipient message would fail to match the
137 onward-connection opened for the first recipient, and cause its closure.
138
f1fed05b
JH
139JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
140 a timeout on read on a GnuTLS initiating connection, resulting in the
141 initiating connection being dropped. This mattered most when the callout
142 was marked defer_ok. Fix to keep the two timeout-detection methods
143 separate.
144
051d5efa
JH
145JH/15 Relax results from ACL control request to enable cutthrough, in
146 unsupported situations, from error to silently (except under debug)
147 ignoring. This covers use with PRDR, frozen messages, queue-only and
148 fake-reject.
149
cf3cd306
HSHR
150HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
151
744976d4
JH
152JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
153 metadata, resulting in a crash in free().
154
aab9a843 155PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 156 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 157 Broken also in d185889f4, with init system revamp.
7be14582 158
83d2a861
JH
159JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
160 Previously we abruptly closed the connection after reading a malware-
161 found indication; now we go on to read the "scan ok" response line,
162 and send a quit.
163
6741531c
JH
164JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
165 ACL. Previously, a crash would result.
166
85e03244
JH
167JH/19 Speed up macro lookups during configuration file read, by skipping non-
168 macro text after a replacement (previously it was only once per line) and
169 by skipping builtin macros when searching for an uppercase lead character.
170
c0635b6d
JH
171JH/20 DANE support moved from Experimental to mainline. The Makefile control
172 for the build is renamed.
173
b808677c
JH
174JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
175 was allocated for every new TLS startup, meaning one per message. Fix
176 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
177
6678c382
JH
178JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
179 reported the original. Fix to report (as far as possible) the ACL
180 result replacing the original.
181
dec766a1
WB
182JH/23 Fix memory leak during multi-message connections using STARTTLS under
183 OpenSSL. Certificate information is loaded for every new TLS startup,
184 and the resources needed to be freed.
185
15ae19f9
JH
186JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
187
e6532c4a
JH
188JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
189 was not propagated.
190
2556b3c6
SA
191JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
192 DATA response info to the (existing) per-recipient response info for
193 the "C=" log element. It can have useful tracking info from the
194 destination system. Patch from Simon Arlott.
195
fc8cd529
JH
196JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
197 length value. Previously this would segfault.
198
71bb51e0
HSHR
199HS/02 Support Avast multiline protoocol, this allows passing flags to
200 newer versions of the scanner.
201
e04bfa34
JH
202JH/28 Ensure that variables possibly set during message acceptance are marked
203 dead before release of memory in the daemon loop. This stops complaints
204 about them when the debug_store option is enabled. Discovered specifically
205 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
206 Do the same for the queue-runner and queue-list loops, for variables set
207 from spool message files. Do the same for the SMTP per-message loop, for
208 certain variables indirectly set in ACL operations.
e04bfa34 209
ecce6d9a
JH
210JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
211 as a multi-recipient message from a mailinglist manager). The coding had
212 an arbitrary cutoff number of characters while checking for more input;
213 enforced by writing a NUL into the buffer. This corrupted long / fast
214 input. The problem was exposed more widely when more pipelineing of SMTP
215 responses was introduced, and one Exim system was feeding another.
216 The symptom is log complaints of SMTP syntax error (NUL chars) on the
217 receiving system, and refused recipients seen by the sending system
218 (propating to people being dropped from mailing lists).
219 Discovered and pinpointed by David Carter.
220
c9cf9ac4
JH
221JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
222 replaced by the ${authresults } expansion.
223
b3b37076
JH
224JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
225
830832c9
HSHR
226HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
227 allows proper process termination in container environments.
228
f64e8b5f
JH
229JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
230 Previously the "final dot" had a newline after it; ensure it is CR,LF.
231
8f0776b5
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232JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
233 and "err_perm", deprecated since 4.83 when the RFC-defined words
234 "temperror" and "permerror" were introduced.
235
857eaf37
JH
236JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
237 transport-filters or DKIM-signing. The restriction was lost in the
238 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 239 Extend the restriction to also cover ARC-signing.
857eaf37 240
c85476e9
JH
241JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
242 in defer=pass mode supply a 450 to the initiator. Previously the message
243 would be spooled.
244
405074ad
PP
245PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
246 tls_require_ciphers is used as before.
247
eb445b04
HSHR
248HS/03 Malware Avast: Better match the Avast multiline protocol. Add
249 "pass_unscanned". Only tmpfails from the scanner are written to
250 the paniclog, as they may require admin intervention (permission
251 denied, license issues). Other scanner errors (like decompression
252 bombs) do not cause a paniclog entry.
ad93c40f 253
d342446f
JH
254JH/36 Fix reinitialisation of DKIM logging variable between messages.
255 Previously it was possible to log spurious information in receive log
256 lines.
257
a28050f8
JH
258JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
259 triggered odd behaviour from Outlook Express clients.
260
ddd16464
PP
261PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
262 suffix list.
263
321ef002
JH
264JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
265 since the IETF WG has not yet settled on that versus the original
266 "bare" representation.
267
3203e7ba
JH
268JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
269 Previously the millisecond value corrupted the output.
270 Fix also for syslog_pid=no and log_selector +pid, for which the pid
271 corrupted the output.
272
bbfb5dcd 273
acfc18c3
PP
274Exim version 4.90
275-----------------
276
277JH/01 Rework error string handling in TLS interface so that the caller in
278 more cases is responsible for logging. This permits library-sourced
279 string to be attached to addresses during delivery, and collapses
280 pairs of long lines into single ones.
281
856d1e16
PP
282PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
283 during configuration. Wildcards are allowed and expanded.
284
b9df1829
JH
285JH/02 Rework error string handling in DKIM to pass more info back to callers.
286 This permits better logging.
287
875512a3
JH
288JH/03 Rework the transport continued-connection mechanism: when TLS is active,
289 do not close it down and have the child transport start it up again on
290 the passed-on TCP connection. Instead, proxy the child (and any
291 subsequent ones) for TLS via a unix-domain socket channel. Logging is
292 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 293 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 294
fc3f96af
JH
295JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
296 identical IP addresses on different listening ports. Will also affect
297 "exiwhat" output.
298
98913c8e
BK
299PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
300 add noisy ifdef guards to special-case this sillyness.
301 Patch from Bernd Kuhls.
302
8d909960
JH
303JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
304 than 255 are no longer allowed.
305
7006ee24
JH
306JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
307 Disable the session-cache too, which might reduce our load. Since we
308 currrectly use a new context for every connection, both as server and
309 client, there is no benefit for these.
310 GnuTLS appears to not support tickets server-side by default (we don't
311 call gnutls_session_ticket_enable_server()) but client side is enabled
312 by default on recent versions (3.1.3 +) unless the PFS priority string
313 is used (3.2.4 +).
314
6e411084
PP
315PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
316 <https://reproducible-builds.org/specs/source-date-epoch/>.
317
4c2471ca
JH
318JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
319 the check for any unsuccessful recipients did not notice the limit, and
320 erroneously found still-pending ones.
321
4e910c01
JH
322JH/08 Pipeline CHUNKING command and data together, on kernels that support
323 MSG_MORE. Only in-clear (not on TLS connections).
324
42055a33
JH
325JH/09 Avoid using a temporary file during transport using dkim. Unless a
326 transport-filter is involved we can buffer the headers in memory for
327 creating the signature, and read the spool data file once for the
328 signature and again for transmission.
329
eeb35890
JH
330JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
331 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 332 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 333
b7d3afcf
JH
334JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
335 case where the routing stage had gathered several addresses to send to
336 a host before calling the transport for the first, we previously failed
337 to close down TLS in the old transport process before passing the TCP
338 connection to the new process. The new one sent a STARTTLS command
339 which naturally failed, giving a failed delivery and bloating the retry
340 database. Investigation and fix prototype from Wolfgang Breyha.
341
40525d07
JH
342JH/12 Fix check on SMTP command input synchronisation. Previously there were
343 false-negatives in the check that the sender had not preempted a response
344 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 345 awareness of the SMTP input buffering.
40525d07 346
f33875c3
PP
347PP/04 Add commandline_checks_require_admin option.
348 Exim drops privileges sanely, various checks such as -be aren't a
349 security problem, as long as you trust local users with access to their
350 own account. When invoked by services which pass untrusted data to
351 Exim, this might be an issue. Set this option in main configuration
352 AND make fixes to the calling application, such as using `--` to stop
353 processing options.
354
a5ffa9b4
JH
355JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
356 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
357 responses to those, into a single TLS record each way (this usually means
358 a single packet). As a side issue, smtp_enforce_sync now works on TLS
359 connections.
925ac8e4 360
6600985a
PP
361PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
362 affects you only if you're dancing at the edge of the param size limits.
363 If you are, and this message makes sense to you, then: raise the
364 configured limit or use OpenSSL 1.1. Nothing we can do for older
365 versions.
366
ac4d558b
JH
367JH/14 For the "sock" variant of the malware scanner interface, accept an empty
368 cmdline element to get the documented default one. Previously it was
369 inaccessible.
370
e69636bc
JH
371JH/15 Fix a crash in the smtp transport caused when two hosts in succession
372 are unsuable for non-message-specific reasons - eg. connection timeout,
373 banner-time rejection.
374
a843a57e
JH
375JH/16 Fix logging of delivery remote port, when specified by router, under
376 callout/hold.
377
8e041ae0
PP
378PP/06 Repair manualroute's ability to take options in any order, even if one
379 is the name of a transport.
833c70bc
PP
380 Fixes bug 2140.
381
35a04365
HSHR
382HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
383
4226691b
JH
384JH/17 Change the list-building routines interface to use the expanding-string
385 triplet model, for better allocation and copying behaviour.
386
d185889f
JH
387JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
388 Previously it was constructed the first time a possibly-matching string
389 was met in the configuration file input during startup; now it is done
390 during compilation.
391
0a6c178c
JH
392JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
393 compatible one, to avoid the (poorly documented) possibility of a config
394 file in the working directory redirecting the DB files, possibly correpting
02745400 395 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 396
fae8970d
JH
397JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
398 cache-hot. Previously, although the result was properly cached, the
399 initial verify call returned a defer.
400
ad1a76fe 401JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
402 the main verify for receipient in uncached-mode.
403
ad1a76fe
JH
404JH/22 Retire historical build files to an "unsupported" subdir. These are
405 defined as "ones for which we have no current evidence of testing".
406
135e9496
JH
407JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
408 if present. Previously it was ignored.
409
f2ed27cf
JH
410JH/24 Start using specified-initialisers in C structure init coding. This is
411 a C99 feature (it's 2017, so now considered safe).
412
7eb0e5d2
JH
413JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
414 if was a fixed-sized field and bitmask ops via macros; it is now more
415 extensible.
416
4f9f4be4
417PP/07 GitHub PR 56: Apply MariaDB build fix.
418 Patch provided by Jaroslav Škarvada.
419
dc4de9cc
PP
420PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
421 during Coverity cleanups [4.87 JH/47]
422 Diagnosis and fix provided by Michael Fischer v. Mollard.
423
ea18931d
JH
424JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
425 the right size to place the terminating semicolon on its own folded
426 line, the header hash was calculated to an incorrect value thanks to
427 the (relaxed) space the fold became.
428
2cee425a
HSHR
429HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
430 and confused the parent.
431
848214f7
JH
432JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
433 which could crash as a result. This could lead to undeliverable messages.
434
9e0ed81f
JH
435JH/28 Logging: "next input sent too soon" now shows where input was truncated
436 for log purposes.
437
2540f2f8
JH
438JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
439 matters on fast-turnover and PID-randomising systems, which were getting
440 out-of-order delivery.
441
e5ab0ba9
JH
442JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
443 a possibly-overlapping copy. The symptom was that "Remote host closed
444 connection in response to HELO" was logged instead of the actual 4xx
445 error for the HELO.
446
e99a3a6c
JH
447JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
448 Previously only that bufferd was discarded, resulting in SYMTP command
449 desynchronisation.
450
18067c75
JH
451JH/32 DKIM: when a message has multiple signatures matching an identity given
452 in dkim_verify_signers, run the dkim acl once for each. Previously only
453 one run was done. Bug 2189.
454
72934ba7
JH
455JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
456 "panic the current process" to "deliberately defer". The panic log is
457 still written with the problem list name; the mail and reject logs now
458 get a temp-reject line for the message that was being handled, saying
459 something like "domains check lookup or other defer". The SMTP 451
460 message is still "Temporary local problem".
461
625667b6
JH
462JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
463 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
464 freed. CVE-2017-16943.
465
466HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
467 from SMTP input. Previously it was always done; now only done for DATA
468 and not BDAT commands. CVE-2017-16944.
625667b6 469
d21bf202
JH
470JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
471 to the message (such as an overlong header line). Previously this was
472 not done and we did not exit BDAT mode. Followon from the previous item
473 though a different problem.
474
acfc18c3 475
fd047340 476Exim version 4.89
acfc18c3 477-----------------
4c57a40e 478
9427e879 479JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 480 than -2003 did; needs libidn2 in addition to libidn.
fd047340 481
7b283890
JH
482JH/02 The path option on a pipe transport is now expanded before use.
483
4c57a40e
PP
484PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
485 Patch provided by "Björn", documentation fix added too.
486
5d036699
JH
487JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
488 missing a wire-to-host endian conversion.
489
f4630439
JH
490JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
491 close after a BDAT command line could be taken as a following command,
492 giving a synch failure. Fix by only checking for synch immediately
493 before acknowledging the chunk.
494
f988ce57
JS
495PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
496 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
497 macro. Patches provided by Josh Soref.
498
bd8fbe36
JH
499JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
500 Previously we did not; the RFC seems ambiguous and VRFY is not listed
501 by IANA as a service extension. However, John Klensin suggests that we
502 should.
503
504JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
505 the dkim code may be unix-mode line endings rather than smtp wire-format
506 CRLF, so prepend a CR to any bare LF.
fd047340 507
bd8fbe36 508JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
509 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
510
bd8fbe36
JH
511JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
512 the first were themselves being wrongly included in the feed into dkim
513 processing; with most chunk sizes in use this resulted in an incorrect
514 body hash calculated value.
515
eea19017
JH
516JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
517 DKIM signature block, for verification. Although advised against by
518 standards it is specifically not ruled illegal.
519
44e6651b
JH
520JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
521
522JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
523 missing a body hash (the bh= tag).
524
525JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
526 It seems that HAProxy sends the Proxy Protocol information in clear and
527 only then does a TLS startup, so do the same.
528
529JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
530 TCP connections (such as for Spamd) unless the daemon successfully set
531 Fast Open mode on its listening sockets. This fixes breakage seen on
532 too-old kernels or those not configured for Fast Open, at the cost of
533 requiring both directions being enabled for TFO, and TFO never being used
534 by non-daemon-related Exim processes.
535
536JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
537 endings, at least on the first header line. Try to canonify any that get
538 past that check, despite the cost.
539
b6040544
JH
540JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
541 now limited to an arbitrary five deep, while parsing addresses with the
542 strip_excess_angle_brackets option enabled.
543
f700ea4d
PP
544PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
545 instead leave the unprompted TLS handshake in socket buffer for the
546 TLS library to consume.
547
da88acae
PP
548PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
549
f6ef9370
PP
550PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
551
90341c71
JH
552JH/16 Drop variables when they go out of scope. Memory management drops a whole
553 region in one operation, for speed, and this leaves assigned pointers
554 dangling. Add checks run only under the testsuite which checks all
555 variables at a store-reset and panics on a dangling pointer; add code
556 explicitly nulling out all the variables discovered. Fixes one known
557 bug: a transport crash, where a dangling pointer for $sending_ip_address
558 originally assigned in a verify callout, is re-used.
559
1ec2ab36
PP
560PP/06 Drop '.' from @INC in various Perl scripts.
561
562PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
563
564PP/08 Reduce a number of compilation warnings under clang; building with
565 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
566 should be warning-free.
567
8b2b9480
PP
568JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
569
570HS/01 Fix portability problems introduced by PP/08 for platforms where
571 realloc(NULL) is not equivalent to malloc() [SunOS et al].
572
d953610f
HSHR
573HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
574 chunk. This allows us to accept broken chunked messages. We need a more
575 general solution here.
576
7dc5f827
PP
577PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
578 already-broken messages in the queue.
579
4bb432cb
PP
580JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
581
3b1a84c8
PP
582JH/19 Fix reference counting bug in routing-generated-address tracking.
583
902fbd69 584
8d042305
JH
585Exim version 4.88
586-----------------
4c57a40e 587
9094b84b
JH
588JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
589 supports it and a size is available (ie. the sending peer gave us one).
8d042305 590
03d5892b
JH
591JH/02 The obsolete acl condition "demime" is removed (finally, after ten
592 years of being deprecated). The replacements are the ACLs
593 acl_smtp_mime and acl_not_smtp_mime.
594
4b0fe319
JH
595JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
596 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
597 or even an in-clear connection were permitted. Now, if the host lookup
598 was dnssec and dane was requested then the host is only used if the
599 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
600 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
601 if one fails this test.
602 This means that a poorly-configured remote DNS will make it incommunicado;
603 but it protects against a DNS-interception attack on it.
604
789f8a4f
JH
605JH/04 Bug 1810: make continued-use of an open smtp transport connection
606 non-noisy when a race steals the message being considered.
607
23bb6982 608JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 609 self-signed certificate for inbound TLS connections.
23bb6982 610
0bd1b1ed 611JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 612 in rewrites and routers.
0bd1b1ed 613
20b9a2dc
JH
614JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
615 and logged a warning sing 4.83; now they are a configuration file error.
616
05392bbc
JH
617JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
618 (lacking @domain). Apply the same qualification processing as RCPT.
619
1a6230a3
JH
620JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
621
cfab9d68
JH
622JH/10 Support ${sha256:} applied to a string (as well as the previous
623 certificate).
624
98c82a3d
JH
625JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
626 a cutthrough deliver is pending, as we always want to make a connection.
627 This also avoids re-routing the message when later placing the cutthrough
628 connection after a verify cache hit.
629 Do not update it with the verify result either.
630
631JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
632 when routing results in more than one destination address.
633
ae8386f0
JH
634JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
635 signing (which inhibits the cutthrough capability). Previously only
636 the presence of an option was tested; now an expansion evaluating as
637 empty is permissible (obviously it should depend only on data available
638 when the cutthrough connection is made).
639
0d9fa8c0
JH
640JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
641 the relevant preceding SMTP command did not note the pipelining mode.
642
3581f321
JH
643JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
644 Previously they were not counted.
645
ef3a1a30
JH
646JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
647 as one having no matching records. Previously we deferred the message
648 that needed the lookup.
649
4c04137d 650JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
651 distinguished as "(=".
652
1435d4b2
JH
653JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
654 for missing MX records. Previously it only worked for missing A records.
655
eea0defe
JB
656JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
657
658JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
659 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 660
4c04137d 661JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
662 even for a "none" policy. Patch from Tony Meyer.
663
1c788856
JH
664JH/22 Fix continued use of a connection for further deliveries. If a port was
665 specified by a router, it must also match for the delivery to be
666 compatible.
667
e3b1f624
JH
668JH/23 Bug 1874: fix continued use of a connection for further deliveries.
669 When one of the recipients of a message was unsuitable for the connection
670 (has no matching addresses), we lost track of needing to mark it
671 deferred. As a result mail would be lost.
672
a57ce043
JH
673JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
674
f59aaaaa 675JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
676 takes up less space and should be simpler to maintain. Merge the ACL
677 condition decode tables also, with similar effect.
d7bed771 678
d1f9fb42
JH
679JH/26 Fix problem with one_time used on a redirect router which returned the
680 parent address unchanged. A retry would see the parent address marked as
681 delivered, so not attempt the (identical) child. As a result mail would
682 be lost.
683
92b0827a
JH
684JH/27 Fix a possible security hole, wherein a process operating with the Exim
685 UID can gain a root shell. Credit to http://www.halfdog.net/ for
686 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
687 itself :(
688
ddf1b11a
JH
689JH/28 Enable {spool,log} filesystem space and inode checks as default.
690 Main config options check_{log,spool}_{inodes,space} are now
691 100 inodes, 10MB unless set otherwise in the configuration.
692
3cc3f762
JH
693JH/29 Fix the connection_reject log selector to apply to the connect ACL.
694 Previously it only applied to the main-section connection policy
695 options.
696
ae5afa61
JH
697JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
698
317e40ac
PP
699PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
700 by me. Added RFC7919 DH primes as an alternative.
701
8b0fb68e
PP
702PP/02 Unbreak build via pkg-config with new hash support when crypto headers
703 are not in the system include path.
704
ad7fc6eb 705JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 706 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
707 Exim did stdio operations after fclose. This was exposed by a recent
708 change which nulled out the file handle after the fclose.
ad7fc6eb 709
ee5b1e28
JH
710JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
711 signed directly by the cert-signing cert, rather than an intermediate
712 OCSP-signing cert. This is the model used by LetsEncrypt.
713
5ddc9771
JH
714JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
715
8d73599f
JH
716HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
717 an incoming connection.
718
446415f5
HSHR
719HS/02 Bug 1802: Do not half-close the connection after sending a request
720 to rspamd.
721
8e53a4fc
HSHR
722HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
723 fallback to "prime256v1".
8d042305 724
87cb4a16 725JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 726 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
727
728
0d9b78be
JH
729Exim version 4.87
730-----------------
4c57a40e 731
82d14d6a
JH
732JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
733 and 3.4.4 - once the server is enabled to respond to an OCSP request
734 it does even when not requested, resulting in a stapling non-aware
735 client dropping the TLS connection.
0d9b78be 736
6c6d6e48
TF
737TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
738 support variable-length bit vectors. No functional change.
739
ac881e27
TF
740TF/02 Improve the consistency of logging incoming and outgoing interfaces.
741 The I= interface field on outgoing lines is now after the H= remote
742 host field, same as incoming lines. There is a separate
743 outgoing_interface log selector which allows you to disable the
744 outgoing I= field.
745
c8899c20
JH
746JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
747 If not running log_selector +smtp_connection the mainlog would be held
748 open indefinitely after a "too many connections" event, including to a
749 deleted file after a log rotate. Leave the per net connection logging
750 leaving it open for efficiency as that will be quickly detected by the
751 check on the next write.
752
f1b81d81
HSHR
753HS/01 Bug 1671: Fix post transport crash.
754 Processing the wait-<transport> messages could crash the delivery
755 process if the message IDs didn't exist for some reason. When
756 using 'split_spool_directory=yes' the construction of the spool
757 file name failed already, exposing the same netto behaviour.
758
f38917cc
JH
759JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
760 mime_regex ACL conditions.
761
895fbaf2
JH
762JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
763 to DSN fail messages (bounces): remote IP, remote greeting, remote response
764 to HELO, local diagnostic string.
765
805bb5c3
JH
766JH/05 Downgrade message for a TLS-certificate-based authentication fail from
767 log line to debug. Even when configured with a tls authenticator many
768 client connections are expected to not authenticate in this way, so
769 an authenticate fail is not an error.
770
56c2a7be
HSHR
771HS/02 Add the Exim version string to the process info. This way exiwhat
772 gives some more detail about the running daemon.
773
4c04137d 774JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
775 matter for fast-change records such as DNSBLs.
776
6f6dedcc
JH
777JH/07 Bug 1678: Always record an interface option value, if set, as part of a
778 retry record, even if constant. There may be multiple transports with
779 different interface settings and the retry behaviour needs to be kept
780 distinct.
781
0f557e90
JH
782JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
783
784JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
785
ec0eb1a3
JH
786JH/10 Bug 840: fix log_defer_output option of pipe transport
787
41e93589
JH
788JH/11 Bug 830: use same host for all RCPTS of a message, even under
789 hosts_randomize. This matters a lot when combined with mua_wrapper.
790
98b98887 791JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
792 ${quote_pgsql:<string>} operator.
793
98b98887
JH
794JH/13 Bug 1708: avoid misaligned access in cached lookup.
795
858e91c2
JH
796JH/14 Change header file name for freeradius-client. Relevant if compiling
797 with Radius support; from the Gentoo tree and checked under Fedora.
798
799JH/15 Bug 1712: Introduce $prdr_requested flag variable
800
6ff55e50
JH
801JH/16 Bug 1714: Permit an empty string as expansion result for transport
802 option transport_filter, meaning no filtering.
803
3b957582
JB
804JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
805
23f3dc67
JH
806JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
807 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 808 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
809 If a server certificate is not supplied (via tls_certificate) an error is
810 logged, and clients will find TLS connections fail on startup. Presumably
811 they will retry in-clear.
812 Packagers of Exim are strongly encouraged to create a server certificate
813 at installation time.
814
240c288f
JH
815HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
816 with the $config_file variable.
817
5ef5dd52
JB
818JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
819 in transport context, after the attempt, and per-recipient. The latter type
820 is per host attempted. The event data is the error message, and the errno
821 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 822 and the trailing two digits of the smtp 4xx response.
5ef5dd52 823
e161710d
GF
824GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
825 to write to mainlog (or rejectlog, paniclog) in the window between file
826 creation and permissions/ownership being changed. Particularly affects
827 installations where exicyclog is run as root, rather than exim user;
828 result is that the running daemon panics and dies.
829
a159f203
JH
830JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
831
7f06582c
JH
832JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
833 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
834 "pri" and "weight". Note that the previous implicit priority given by the
835 list order is no longer honoured.
836
4c04137d 837JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
838 for DKIM processing.
839
f0989ec0
JH
840JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
841 by defining SUPPORT_SOCKS.
74f150bf 842
cee5f132
JH
843JH/26 Move PROXY support from Experimental to mainline, enabled for a build
844 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
845 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
846 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 847
8c5d388a
JH
848JH/27 Move Internationalisation support from Experimental to mainline, enabled
849 for a build by defining SUPPORT_I18N
850
2d8d625b
JH
851JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
852 of the query string, and make ${quote_redis:} do that quoting.
853
0cbf2b82
JH
854JH/29 Move Events support from Experimental to mainline, enabled by default
855 and removable for a build by defining DISABLE_EVENT.
856
f2f2c91b
JH
857JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
858
ce325893
JH
859JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
860 cached by the daemon.
861
de78e2d5
JH
862JH/32 Move Redis support from Experimental to mainline, enabled for a build
863 by defining LOOKUP_REDIS. The libhiredis library is required.
864
379ba7d0
JH
865JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
866 keys are given for lookup.
867
f444c2c7
JH
868JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
869 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
870 only supported when built with TLS support. The PolarSSL SHA routines
871 are still used when the TLS library is too old for convenient support.
f444c2c7 872
a57b6200
JH
873JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
874 openssl_options), for security. OpenSSL forces this from version 1.1.0
875 server-side so match that on older versions.
876
07c73177 877JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 878 allocation for $value could be released as the expansion processing
07c73177 879 concluded, but leaving the global pointer active for it.
fa01e4f8 880
4f6ae5c3
JH
881JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
882 and to use the domains and local_parts ACL conditions.
883
1bc460a6
JH
884JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
885 incorrectly not doubled on cutthrough transmission, hence seen as a
886 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 887 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
888 via the normal store-and-forward channel. This could result in duplicates
889 received - but deduplicating mailstores were liable to retain only the
890 initial truncated version.
891
ab9152ff 892JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 893
67e87fcf
JH
894JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
895
ab9152ff
JH
896JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
897 we're in there, support oversigning also; bug 1309.
898
af483912
JH
899JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
900
bc3c7bb7 901HS/04 Add support for keep_environment and add_environment options.
df3def24 902
13559da6
JH
903JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
904 either intentional arithmetic overflow during PRNG, or testing config-
905 induced overflows.
906
59eaad2b
JH
907JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
908 delivery resulted in actual delivery. Cancel cutthrough before DATA
909 stage.
910
f9334a28
JH
911JH/45 Fix cutthrough, when connection not opened by verify and target hard-
912 rejects a recipient: pass the reject to the originator.
913
dc8091e7
JH
914JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
915 Many were false-positives and ignorable, but it's worth fixing the
916 former class.
917
dfe7d917
JH
918JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
919 for the new environment-manipulation done at startup. Move the routines
920 from being local to tls.c to being global via the os.c file.
921
93cc2d6e
JH
922JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
923 an extract embedded as result-arg for a map, the first arg for extract
924 is unavailable so we cannot tell if this is a numbered or keyed
925 extraction. Accept either.
926
13559da6 927
9c695f6d
JH
928Exim version 4.86
929-----------------
4c57a40e 930
9c695f6d
JH
931JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
932 expanded.
933
506900af
JH
934JH/02 The smtp transport option "multi_domain" is now expanded.
935
ad07e9ad
JH
936JH/03 The smtp transport now requests PRDR by default, if the server offers
937 it.
938
01a4a5c5 939JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 940 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
941 can be used to disable this per-host. The build option
942 EXPERIMENTAL_CERTNAMES is withdrawn.
943
cb1d7830 944JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 945 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
946 For GnuTLS, only version 3.0.20 or later.
947
610ff438 948JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
949 (but not required) by default. The verification status is now logged by
950 default, for both outbound TLS and client-certificate supplying inbound
951 TLS connections
610ff438 952
f926e272
JH
953JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
954 sites use this now.
955
50dc7409
JH
956JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
957 Status Notification (bounce) messages are now MIME format per RFC 3464.
958 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
959 under the control of the dsn_advertise_hosts option, and routers may
960 have a dsn_lasthop option.
961
0f0c8159
JH
962JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
963 default, modifiable by a malware= option. The list separator for
23763898 964 the options can now be changed in the usual way. Bug 68.
4e71661f 965
1ad6489e
JH
966JH/10 The smtp_receive_timeout main option is now expanded before use.
967
aeaf5db3
JH
968JH/11 The incoming_interface log option now also enables logging of the
969 local interface on delivery outgoing connections.
970
5032d1cf
JH
971JH/12 The cutthrough-routing facility now supports multi-recipient mails,
972 if the interface and destination host and port all match.
973
7e8360e6
JH
974JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
975 /defer_ok option.
976
c5f280e2
AL
977JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
978 Patch from Andrew Lewis.
979
fd4d8871 980JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 981 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
982 modifiers per server. Patch originally by <rommer@active.by>.
983
984JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
985 and remote servers. Remote servers can be IPv6 addresses, and
986 specify a port-range.
fd4d8871 987
23763898
JH
988JH/17 Bug 68: The spamd_address main option now supports an optional
989 timeout value per server.
990
2ad78978
JH
991JH/18 Bug 1581: Router and transport options headers_add/remove can
992 now have the list separator specified.
993
8a512ed5 994JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 995 option values.
8a512ed5 996
82c0c8ea 997JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
998 under OpenSSL.
999
cc00f4af
JH
1000JH/21 Support for the A6 type of dns record is withdrawn.
1001
82c0c8ea
JH
1002JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1003 rather than the verbs used.
1004
b980ed83
JH
1005JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1006 from 255 to 1024 chars.
1007
6c9ed72e
JH
1008JH/24 Verification callouts now attempt to use TLS by default.
1009
cfab9d68 1010HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1011 are generic router options now. The defaults didn't change.
50dc7409 1012
f846c8f5
JH
1013JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1014 Original patch from Alexander Shikoff, worked over by JH.
1015
fd4c285c
HSHR
1016HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1017 files if ZCAT_COMMAND is not executable.
1018
4c04137d 1019JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1020
d2a2c69b
JH
1021JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1022
8241d8dd
JH
1023JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1024 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1025 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1026 (and we were inconsistent anyway for A-only vs AAAA+A).
1027
1f12df4d
JH
1028JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1029
1f155f8e
JH
1030JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1031 when evaluating $sender_host_dnssec.
1032
1705dd20
JH
1033JH/31 Check the HELO verification lookup for DNSSEC, adding new
1034 $sender_helo_dnssec variable.
1035
038597d2
PP
1036JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1037
474f71bf
JH
1038JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1039
7137ca4b
JH
1040JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1041
dcb1095c
JH
1042JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1043 documented as working, but never had. Support all but $spam_report.
1044
2f460950
JH
1045JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1046 added for tls authenticator.
1047
2f680c0c
HSHR
1048HS/03 Add perl_taintmode main config option
1049
9c695f6d 1050
e449c3b0
TL
1051Exim version 4.85
1052-----------------
4c57a40e 1053
e449c3b0
TL
1054TL/01 When running the test suite, the README says that variables such as
1055 no_msglog_check are global and can be placed anywhere in a specific
1056 test's script, however it was observed that placement needed to be near
1057 the beginning for it to behave that way. Changed the runtest perl
1058 script to read through the entire script once to detect and set these
1059 variables, reset to the beginning of the script, and then run through
1060 the script parsing/test process like normal.
1061
ac20058f
TL
1062TL/02 The BSD's have an arc4random API. One of the functions to induce
1063 adding randomness was arc4random_stir(), but it has been removed in
1064 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1065 function when detected.
1066
a9b8ec8b
JH
1067JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1068 cause callback expansion.
1069
6286d7c4
TL
1070TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1071 syntax errors in an expansion can be treated as a string instead of
1072 logging or causing an error, due to the internal use of bool_lax
1073 instead of bool when processing it.
1074
0f06b4f2 1075JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1076 server certificates when making smtp deliveries.
1077
be36e572
JH
1078JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1079
ac4ef9bd
JH
1080JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1081
0eb51736
TL
1082TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1083
c713ca4b
TL
1084TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1085 Merged patch from Sebastian Wiedenroth.
e449c3b0 1086
bd21a787
WB
1087JH/05 Fix results-pipe from transport process. Several recipients, combined
1088 with certificate use, exposed issues where response data items split
1089 over buffer boundaries were not parsed properly. This eventually
1090 resulted in duplicates being sent. This issue only became common enough
4c04137d 1091 to notice due to the introduction of connection certificate information,
bd21a787
WB
1092 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1093
8bc732e8
JH
1094JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1095 size buffer was used, resulting in syntax errors when an expansion
1096 exceeded it.
1097
a7fec7a7
JH
1098JH/07 Add support for directories of certificates when compiled with a GnuTLS
1099 version 3.3.6 or later.
1100
4c04137d 1101JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1102 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1103 both become "event_action", the variables become $event_name, $event_data
aec45841 1104 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1105 routers, transports and related events. The tls:cert event is now also
1106 raised for inbound connections, if the main configuration event_action
1107 option is defined.
774ef2d7 1108
eca4debb
TL
1109TL/06 In test suite, disable OCSP for old versions of openssl which contained
1110 early OCSP support, but no stapling (appears to be less than 1.0.0).
1111
8d692470
JH
1112JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1113 server certificate names available under the smtp transport option
1114 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1115 matches.
1116
e9477a08
JH
1117JH/10 Time-related extraction expansions from certificates now use the main
1118 option "timezone" setting for output formatting, and are consistent
1119 between OpenSSL and GnuTLS compilations. Bug 1541.
1120
ad4c5ff9
JH
1121JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1122 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1123
1124JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1125 include certificate info, eximon was claiming there were spoolfile
1126 syntax errors.
1127
3394b36a 1128JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1129
1130JH/14 Log delivery-related information more consistently, using the sequence
1131 "H=<name> [<ip>]" wherever possible.
1132
3394b36a
TL
1133TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1134 are problematic for Debian distribution, omit them from the release
1135 tarball.
1136
ad4c5ff9
JH
1137JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1138
4c04137d 1139JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1140 Bug 1561.
1141
1142JH/17 Fix a null-indirection in certextract expansions when a nondefault
1143 output list separator was used.
1144
8bc732e8 1145
1f0ebb98
TL
1146Exim version 4.84
1147-----------------
09728d20
TL
1148TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1149 checkers that were complaining about end of non-void function with no
1150 return.
1f0ebb98 1151
a612424f 1152JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1153 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1154
1155JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1156
1157TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1158 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1159
1f0ebb98 1160
c0e56233
TF
1161Exim version 4.83
1162-----------------
1163
1164TF/01 Correctly close the server side of TLS when forking for delivery.
1165
1166 When a message was received over SMTP with TLS, Exim failed to clear up
1167 the incoming connection properly after forking off the child process to
1168 deliver the message. In some situations the subsequent outgoing
1169 delivery connection happened to have the same fd number as the incoming
1170 connection previously had. Exim would try to use TLS and fail, logging
1171 a "Bad file descriptor" error.
1172
7245734e
TF
1173TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1174 utilities have not been installed.
1175
fd5dad68
JH
1176JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1177 temporary space as the ACL may create new global variables.
1178
5428a946
TL
1179TL/01 LDAP support uses per connection or global context settings, depending
1180 upon the detected version of the libraries at build time.
1181
a3c86431
TL
1182TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1183 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1184 were a direct connection from the outside internet. PPv2 support was
1185 updated based on HAProxy spec change in May 2014.
a3c86431 1186
aa26e137
JH
1187JH/02 Add ${listextract {number}{list}{success}{fail}}.
1188
5a1b8443
WB
1189TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1190 Properly escape header and check for NULL return.
1191
72c9e342
PP
1192PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1193 not dns_use_dnssec.
1194
76f44207
WB
1195JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1196
770747fd
MFM
1197TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1198 characters in header names, implemented as a verify condition.
1199 Contributed by Michael Fischer v. Mollard.
1200
8ddef691 1201TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1202 results permerror and temperror. Previous values are deprecated but
1203 still accepted. In a future release, err_perm and err_temp will be
1204 completely removed, which will be a backward incompatibility if the
1205 ACL tests for either of these two old results. Patch contributed by
8ddef691 1206 user bes-internal on the mailing list.
c0e56233 1207
b9c2e32f
AR
1208JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1209
e45a1c37
JH
1210JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1211 selectors, in both main and reject logs.
1212
67d81c10
JH
1213JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1214 failed delivery.
1215
b1f8e4f8
JH
1216JH/07 Add malware type "sock" for talking to simple daemon.
1217
511a6c14 1218JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1219
1220JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1221 routers/transports under cutthrough routing.
214042d2 1222
51c7471d
JH
1223JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1224 numbers. Touch up "bool" conditional to keep the same definition.
1225
3695be34
TL
1226TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1227
1e06383a
TL
1228JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1229
76146973
JH
1230JH/12 Expand items in router/transport headers_add or headers_remove lists
1231 individually rather than the list as a whole. Bug 1452.
1232
1233 Required for reasonable handling of multiple headers_ options when
1234 they may be empty; requires that headers_remove items with embedded
1235 colons must have them doubled (or the list-separator changed).
1236
8c8b8274
TL
1237TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1238 view the policy declared in the DMARC record. Currently, $dmarc_status
1239 is a combined value of both the record presence and the result of the
1240 analysis.
b1f8e4f8 1241
35aba663
JH
1242JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1243
8c51eead 1244JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1245 dnslookup router and the smtp transport (applying to the forward
1246 lookup).
8c51eead 1247
deae092e
HS
1248TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1249 of ldap servers used for a specific lookup. Patch provided by Heiko
1250 Schlichting.
35aba663 1251
fd3b6a4a 1252JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1253 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1254
8d91c6dc
LT
1255TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1256 Patch submitted by Lars Timman.
1257
2b4a568d
JH
1258JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1259
d2af03f4
HS
1260TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1261 Requires trusted mode and valid format message id, aborts otherwise.
1262 Patch contributed by Heiko Schlichting.
1263
9d1c15ef
JH
1264JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1265 certextract with support for various fields. Bug 1358.
1266
44662487
JH
1267JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1268 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1269 hosts_request_ocsp.
1270
ed3bba5f 1271JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1272 operate on certificate variables to give certificate fingerprints
9ef9101c 1273 Also new ${sha256:cert_variable}.
44662487 1274
8ccd00b1
JH
1275JH/23 The PRDR feature is moved from being Experimental into the mainline.
1276
8ded8589
TL
1277TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1278 Christian Aistleitner.
1279
f2de3a33
JH
1280JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1281
6eb02f88
TL
1282TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1283 file. Patch from Wolfgang Breyha.
1284
00bff6f6
JH
1285JH/25 Expand the coverage of the delivery $host and $host_address to
1286 client authenticators run in verify callout. Bug 1476.
1287
071c51f7
JH
1288JH/26 Port service names are now accepted for tls_on_connect_ports, to
1289 align with daemon_smtp_ports. Bug 72.
1290
a6d4c44e
TF
1291TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1292 support and error reporting did not work properly.
1293
3ae173e7
ACK
1294TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1295 and is readable. Patch from Andrew Colin Kissa.
1296
c13d09b8
TL
1297TL/14 Enhance documentation of ${run expansion and how it parses the
1298 commandline after expansion, particularly in the case when an
1299 unquoted variable expansion results in an empty value.
1300
0df4ab80
JH
1301JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1302
66be95e0
PP
1303PP/02 Fix internal collision of T_APL on systems which support RFC3123
1304 by renaming away from it. Addresses GH issue 15, reported by
1305 Jasper Wallace.
1306
1bd0d12b
JH
1307JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1308
0de7239e
TL
1309TL/15 SECURITY: prevent double expansion in math comparison functions
1310 (can expand unsanitized data). Not remotely exploitable.
1311 CVE-2014-2972
1312
fd3b6a4a 1313
2c422e6f 1314Exim version 4.82
98a90c36
PP
1315-----------------
1316
1317PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1318
12f69989
PP
1319PP/02 Make -n do something, by making it not do something.
1320 When combined with -bP, the name of an option is not output.
1321
54c90be1
PP
1322PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1323 by GnuTLS.
1324
1f4a55da
PP
1325PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1326 $sender_host_name and config options to manage this, and basic check
1327 routines.
1328
13363eba 1329PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1330
66645890 1331PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1332 (Only plugin which currently uses this is kerberos4, which nobody should
1333 be using, but we should make it available and other future plugins might
1334 conceivably use it, even though it would break NAT; stuff *should* be
1335 using channel bindings instead).
66645890 1336
a3fb9793 1337PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1338 name; added for Sendmail compatibility; requires admin caller.
1339 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1340 just ignore it); requires trusted caller.
a3fb9793 1341 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1342 Bugzilla 1117.
a3fb9793 1343
d27f98fe 1344TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1345
6822b909
TL
1346TL/02 Add +smtp_confirmation as a default logging option.
1347
e7568d51
TL
1348TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1349 Patch by Magnus Holmgren from 2007-02-20.
1350
ae0e32ee 1351TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1352 Bugzilla 1283 - Spec typo.
97f42f10 1353 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1354
1355TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1356
e2658fff
TL
1357TL/06 Add Experimental DMARC support using libopendmarc libraries.
1358
83712b39
TL
1359TL/07 Fix an out of order global option causing a segfault. Reported to dev
1360 mailing list by by Dmitry Isaikin.
1361
976b7e9f
JH
1362JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1363
be4a1376
JH
1364JH/02 Support "G" suffix to numbers in ${if comparisons.
1365
ec4b68e5
PP
1366PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1367
d7148a07
NM
1368NM/01 Bugzilla 1197 - Spec typo
1369 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1370
585121e2 1371JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1372
2519e60d
TL
1373PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1374 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1375 function.
a5f239e4 1376
13d08c90
PP
1377PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1378 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1379
bef3ea7f
JH
1380JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1381 "acl {{name}{arg}...}", and optional args on acl condition
1382 "acl = name arg..."
a5f239e4 1383
846726c5
JH
1384JH/05 Permit multiple router/transport headers_add/remove lines.
1385
3a796370
JH
1386JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1387
ea722490 1388JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1389 Performance patch from Paul Fisher. Bugzilla 1262.
1390
b1b05573
JH
1391JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1392 Bugzilla 884.
1393
362145b5
JH
1394JH/09 Add $headers_added variable, with content from use of ACL modifier
1395 add_header (but not yet added to the message). Bugzilla 199.
1396
3c0a92dc
JH
1397JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1398 Pulled from Bugzilla 817 by Wolfgang Breyha.
1399
6d7c6175
PP
1400PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1401 CVE-2012-5671
e78e6ecf 1402 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1403
6f123593
JH
1404JH/11 Add A= logging on delivery lines, and a client_set_id option on
1405 authenticators.
1406
c8e2fc1e
JH
1407JH/12 Add optional authenticated_sender logging to A= and a log_selector
1408 for control.
1409
005ac57f
PP
1410PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1411
3f1df0e3
PP
1412PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1413 advertise SMTP AUTH mechanism to us, instead of a generic
1414 protocol violation error. Also, make Exim more robust to bad
1415 data from the Dovecot auth socket.
1416
67bd1ab3
TF
1417TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1418
1419 When a queue runner is handling a message, Exim first routes the
1420 recipient addresses, during which it prunes them based on the retry
1421 hints database. After that it attempts to deliver the message to
1422 any remaining recipients. It then updates the hints database using
1423 the retry rules.
1424
1425 So if a recipient address works intermittently, it can get repeatedly
1426 deferred at routing time. The retry hints record remains fresh so the
1427 address never reaches the final cutoff time.
1428
1429 This is a fairly common occurrence when a user is bumping up against
1430 their storage quota. Exim had some logic in its local delivery code
1431 to deal with this. However it did not apply to per-recipient defers
1432 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1433
1ddeb334
TF
1434 This change adds a proper retry rule check during routing so that the
1435 final cutoff time is checked against the message's age. We only do
1436 this check if there is an address retry record and there is not a
1437 domain retry record; this implies that previous attempts to handle
1438 the address had the retry_use_local_parts option turned on. We use
1439 this as an approximation for the destination being like a local
1440 delivery, as in LMTP.
67bd1ab3
TF
1441
1442 I suspect this new check makes the old local delivery cutoff check
1443 redundant, but I have not verified this so I left the code in place.
1444
326cdc37
TF
1445TF/02 Correct gecos expansion when From: is a prefix of the username.
1446
1447 Test 0254 submits a message to Exim with the header
1448
1449 Resent-From: f
1450
1451 When I ran the test suite under the user fanf2, Exim expanded
1452 the header to contain my full name, whereas it should have added
1453 a Resent-Sender: header. It erroneously treats any prefix of the
1454 username as equal to the username.
1455
1456 This change corrects that bug.
1457
f62514b3
GF
1458GF/01 DCC debug and logging tidyup
1459 Error conditions log to paniclog rather than rejectlog.
1460 Debug lines prefixed by "DCC: " to remove any ambiguity.
1461
eb505532
TF
1462TF/03 Avoid unnecessary rebuilds of lookup-related code.
1463
14c7b357
PP
1464PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1465 Bug spotted by Jeremy Harris; was flawed since initial commit.
1466 Would have resulted in OCSP responses post-SNI triggering an Exim
1467 NULL dereference and crash.
1468
94eaf700
PP
1469JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1470
6f5a440a
PP
1471PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1472 Bug detection, analysis and fix by Samuel Thibault.
1473 Bugzilla 1331, Debian bug #698092.
1474
514ee161
SC
1475SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1476
fd98a5c6
JH
1477JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1478 Server implementation by Todd Lyons, client by JH.
1479 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1480 config variable "prdr_enable" controls whether the server
1481 advertises the facility. If the client requests PRDR a new
1482 acl_data_smtp_prdr ACL is called once for each recipient, after
1483 the body content is received and before the acl_smtp_data ACL.
4c04137d 1484 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1485 on the smtp transport, and the server advertisement.
1486 Default client logging of deliveries and rejections involving
1487 PRDR are flagged with the string "PRDR".
1488
035c7f1e
PP
1489PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1490 fclose(). Diagnosis by Todd Lyons.
1491
ff284120
PP
1492PP/17 Update configure.default to handle IPv6 localhost better.
1493 Patch by Alain Williams (plus minor tweaks).
1494 Bugzilla 880.
1495
26e72755
PP
1496PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1497 This is now consistent with GnuTLS, and is now documented: the
1498 previous undocumented portable approach to treating the option as
1499 unset was to force an expansion failure. That still works, and
1500 an empty string is now equivalent.
1501
0fbd9bff
PP
1502PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1503 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1504 not performing validation itself.
1505
700d22f3
PP
1506PP/20 Added force_command boolean option to pipe transport.
1507 Patch from Nick Koston, of cPanel Inc.
1508
fcc8e047
JH
1509JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1510 Bugzilla 321, 823.
1511
4c04137d 1512TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1513
8c020188
PP
1514PP/21 Fix eximon continuous updating with timestamped log-files.
1515 Broken in a format-string cleanup in 4.80, missed when I repaired the
1516 other false fix of the same issue.
1517 Report and fix from Heiko Schlichting.
1518 Bugzilla 1363.
1519
d13cdd30
PP
1520PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1521 Report from Prashanth Katuri.
1522
e2fbf4a2
PP
1523PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1524 It's SecureTransport, so affects any MacOS clients which use the
1525 system-integrated TLS libraries, including email clients.
1526
f4c1088b
PP
1527PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1528 using a MIME ACL for non-SMTP local injection.
1529 Report and assistance in diagnosis by Warren Baker.
1530
c5c2182f
PP
1531TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1532
73431ca9
JH
1533JH/16 Fix comparisons for 64b. Bugzilla 1385.
1534
2d07a215
TL
1535TL/09 Add expansion variable $authenticated_fail_id to keep track of
1536 last id that failed so it may be referenced in subsequent ACL's.
1537
a30a8861
TL
1538TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1539 Alexander Miroch.
1540
33382dd9
TL
1541TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1542 ldap library initialization, allowing self-signed CA's to be
1543 used. Also properly sets require_cert option later in code by
1544 using NULL (global ldap config) instead of ldap handle (per
1545 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1546
046172e6
TL
1547TL/12 Enhanced documentation in the ratelimit.pl script provided in
1548 the src/util/ subdirectory.
1549
581d7bee 1550TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1551 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1552 EXPERIMENTAL_TPDA.
1553
1554TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1555 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1556 redis_servers = needs to be configured which will be used by the redis
1557 lookup. Patch from Warren Baker, of The Packet Hub.
1558
237b2cf2
TL
1559TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1560
9fc5a352
TL
1561TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1562 hostname or reverse DNS when processing a host list. Used suggestions
1563 from multiple comments on this bug.
1a7b746d 1564
b10e4ec2
TL
1565TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1566
e2cebd74
TL
1567TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1568 Missed a few lines, added it to make the runtest require no keyboard
1569 interaction.
1570
1571TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1572 contains upper case chars. Make router use caseful_local_part.
1573
2519e60d
TL
1574TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1575 support when GnuTLS has been built with p11-kit.
1576
e78e6ecf 1577
4263f395
PP
1578Exim version 4.80.1
1579-------------------
1580
1581PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1582 CVE-2012-5671
2c422e6f 1583 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1584
ea722490 1585
b1770b6e 1586Exim version 4.80
0599f9cf
PP
1587-----------------
1588
1589PP/01 Handle short writes when writing local log-files.
1590 In practice, only affects FreeBSD (8 onwards).
1591 Bugzilla 1053, with thanks to Dmitry Isaikin.
1592
23c7e742
NM
1593NM/01 Bugzilla 949 - Documentation tweak
1594
b322aac8
NM
1595NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1596 improved.
1597
4a891427
NM
1598NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1599
c1e794ba 1600PP/02 Implemented gsasl authenticator.
b322aac8 1601
97753960
PP
1602PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1603
1604PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1605 `pkg-config foo` for cflags/libs.
1606
df6303fa
PP
1607PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1608 with rest of GSASL and with heimdal_gssapi.
1609
7e6a8985
PP
1610PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1611 `pkg-config foo` for cflags/libs for the TLS implementation.
1612
f1e05cc7 1613PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1614 properties get this fed in as external SSF. A number of robustness
1615 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1616
4c287009
PP
1617PP/08 cyrus_sasl server now expands the server_realm option.
1618
b98bb9ac
PP
1619PP/09 Bugzilla 1214 - Log authentication information in reject log.
1620 Patch by Jeremy Harris.
1621
4a6a987a
PP
1622PP/10 Added dbmjz lookup type.
1623
c45dd180 1624PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1625
7db8d074
PP
1626PP/12 MAIL args handles TAB as well as SP, for better interop with
1627 non-compliant senders.
1628 Analysis and variant patch by Todd Lyons.
1629
eae0036b 1630NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1631 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1632 Patch from Dirk Mueller <dmueller@suse.com>
1633
dec5017e
PP
1634PP/13 tls_peerdn now print-escaped for spool files.
1635 Observed some $tls_peerdn in wild which contained \n, which resulted
1636 in spool file corruption.
1637
c80c5570
PP
1638PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1639 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1640 or write after TLS renegotiation, which otherwise led to messages
1641 "Got SSL error 2".
1642
076b11e2
PP
1643TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1644 as a tracking header (ie: a signed header comes before the signature).
1645 Patch from Wolfgang Breyha.
1646
5407bfff
JH
1647JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1648 comma-sep list; embedded commas doubled.
1649
9e45c72b
PP
1650JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1651
e74376d8
PP
1652PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1653 diagnostics.
1654 Report and patch from Dmitry Banschikov.
1655
4c04137d 1656PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1657 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1658 failures. We appear to now support TLS1.1+ with Exim.
1659
7be682ca
PP
1660PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1661 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1662 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1663 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1664
ef840681
PP
1665PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1666 NULL dereference. Report and patch from Alun Jones.
1667
5bfb4cdf
PP
1668PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1669 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1670 Not seeing resolver debug output on NetBSD, but suspect this is a
1671 resolver implementation change.
1672
c6e95d22
PP
1673PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1674 Left warnings. Added "eximon gdb" invocation mode.
1675
9cbad13b
PP
1676PP/21 Defaulting "accept_8bitmime" to true, not false.
1677
9ee44efb
PP
1678PP/22 Added -bw for inetd wait mode support.
1679
6a6084f8
PP
1680PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1681 locate the relevant includes and libraries. Made this the default.
1682
12dd53c7
PP
1683PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1684 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1685
9e45c72b 1686JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1687 This may cause build issues on older platforms.
1688
17c76198
PP
1689PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1690 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1691 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1692 Added SNI support via GnuTLS too.
af3498d6 1693 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1694
53947857 1695PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1696
eae0036b 1697PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1698 Applied second patch from Janne, implementing suggestion to default
1699 multiple-strings-in-record handling to match SPF spec.
eae0036b 1700
9e45c72b 1701JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1702
7390e768
PP
1703PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1704 read-only, out of scope).
1705 Patch from Wolfgang Breyha, report from Stuart Northfield.
1706
08488c86
PP
1707PP/29 Fix three issues highlighted by clang analyser static analysis.
1708 Only crash-plausible issue would require the Cambridge-specific
1709 iplookup router and a misconfiguration.
1710 Report from Marcin Mirosław.
1711
6475bd82
PP
1712PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1713
81f91683
PP
1714PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1715 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1716 As part of this, removing so much warning spew let me fix some minor
1717 real issues in debug logging.
1718
5779e6aa
PP
1719PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1720 assignment on my part. Fixed.
1721
3375e053
PP
1722PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1723 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1724 Janne Snabb (who went above and beyond: thank you).
1725
1726PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1727 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1728 relatively easy to get wrong. Should also expose TLS library linkage
1729 problems.
3375e053 1730
9d26b8c0
PP
1731PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1732 64-bit ${eval} (JH/03).
1733
57eb9e91 1734PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1735 GNU libc to support some of the 64-bit stuff, should not lead to
1736 conflicts. Defined before os.h is pulled in, so if a given platform
1737 needs to override this, it can.
1738
16880d1a
PP
1739PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1740 protection layer was required, which is not implemented.
1741 Bugzilla 1254, patch from Wolfgang Breyha.
1742
a799883d
PP
1743PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1744 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1745 tls_dhparam take prime identifiers. Also unbreak combination of
1746 OpenSSL+DH_params+TLSSNI.
1747
3ecab157 1748PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1749
0599f9cf 1750
867fcbf5
PP
1751Exim version 4.77
1752-----------------
1753
1754PP/01 Solaris build fix for Oracle's LDAP libraries.
1755 Bugzilla 1109, patch from Stephen Usher.
1756
f1a29782
TF
1757TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1758
ab42bd23
TK
1759TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1760 whitespace trailer
867fcbf5 1761
0ca0cf52
TF
1762TF/02 Fix a couple more cases where we did not log the error message
1763 when unlink() failed. See also change 4.74-TF/03.
1764
921b12ca
TF
1765TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1766 lock up or crash if it happened to be inside a call to libc when it
1767 got a SIGUSR1 from exiwhat.
1768
1769 The SIGUSR1 handler appends the current process status to the process
1770 log which is later printed by exiwhat. It used to use the general
1771 purpose logging code to do this, but several functions it calls are
1772 not safe for signals.
1773
1774 The new output code in the SIGUSR1 handler is specific to the process
1775 log, and simple enough that it's easy to inspect for signal safety.
1776 Removing some special cases also simplifies the general logging code.
1777 Removing the spurious timestamps from the process log simplifies
1778 exiwhat.
1779
c99ce5c9
TF
1780TF/04 Improved ratelimit ACL condition.
1781
1782 The /noupdate option has been deprecated in favour of /readonly which
1783 has clearer semantics. The /leaky, /strict, and /readonly update modes
1784 are mutually exclusive. The update mode is no longer included in the
1785 database key; it just determines when the database is updated. (This
4c04137d 1786 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1787
1788 Exim now checks that the per_* options are used with an update mode that
1789 makes sense for the current ACL. For example, when Exim is processing a
1790 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1791 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1792 must specify per_mail/readonly. If you omit the update mode it defaults to
1793 /leaky where that makes sense (as before) or /readonly where required.
1794
1795 The /noupdate option is now undocumented but still supported for
1796 backwards compatibility. It is equivalent to /readonly except that in
1797 ACLs where /readonly is required you may specify /leaky/noupdate or
1798 /strict/noupdate which are treated the same as /readonly.
1799
1800 A useful new feature is the /count= option. This is a generalization
1801 of the per_byte option, so that you can measure the throughput of other
1802 aggregate values. For example, the per_byte option is now equivalent
1803 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1804
1805 The per_rcpt option has been generalized using the /count= mechanism
1806 (though it's more complicated than the per_byte equivalence). When it is
1807 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1808 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1809 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1810 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1811 Note that using per_rcpt with a non-readonly update mode in more than
1812 one ACL will cause the recipients to be double-counted. (The per_mail
1813 and per_byte options don't have this problem.)
1814
1815 The handling of very low rates has changed slightly. If the computed rate
1816 is less than the event's count (usually one) then this event is the first
1817 after a long gap. In this case the rate is set to the same as this event's
1818 count, so that the first message of a spam run is counted properly.
1819
1820 The major new feature is a mechanism for counting the rate of unique
1821 events. The new per_addr option counts the number of different
1822 recipients that someone has sent messages to in the last time period. It
1823 behaves like per_rcpt if all the recipient addresses are different, but
1824 duplicate recipient addresses do not increase the measured rate. Like
1825 the /count= option this is a general mechanism, so the per_addr option
1826 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1827 example, measure the rate that a client uses different sender addresses
1828 with the options per_mail/unique=$sender_address. There are further
1829 details in the main documentation.
1830
3634fc25
TF
1831TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1832
792e8a19
TF
1833TF/06 Removed a few PCRE remnants.
1834
5901f0ab
TF
1835TF/07 Automatically extract Exim's version number from tags in the git
1836 repository when doing development or release builds.
1837
7f2a2a43
PP
1838PP/02 Raise smtp_cmd_buffer_size to 16kB.
1839 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1840
061b7ebd
PP
1841PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1842 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1843 Bugzilla 97.
1844
e12f8c32
PP
1845PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1846
9e949f00 1847PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1848 Bugzilla 1078. Patch from John Horne.
1849
1850PP/06 Stop make process more reliably on build failure.
1851 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1852
555ae6af 1853PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1854 Bugzilla 1089. Patch from Heiko Schlittermann.
1855
1856PP/08 Handle ${run} returning more data than OS pipe buffer size.
1857 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1858
6f7fe114
PP
1859PP/09 Handle IPv6 addresses with SPF.
1860 Bugzilla 860. Patch from Wolfgang Breyha.
1861
c566dd90
PP
1862PP/10 GnuTLS: support TLS 1.2 & 1.1.
1863 Bugzilla 1156.
89f897c3
PP
1864 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1865 Bugzilla 1095.
c566dd90 1866
d6cc7c78 1867PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1868 New compile-time build option, EXPAND_LISTMATCH_RHS.
1869 New expansion conditions, "inlist", "inlisti".
1870
0d0e4455
PP
1871PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1872
3399bb60 1873PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1874
1875PP/14 fix log_write() format string regression from TF/03.
1876 Bugzilla 1152. Patch from Dmitry Isaikin.
1877
0ca0cf52 1878
10906672
PP
1879Exim version 4.76
1880-----------------
1881
1882PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1883
754a0503
PP
1884PP/02 Harmonised TLS library version reporting; only show if debugging.
1885 Layout now matches that introduced for other libraries in 4.74 PP/03.
1886
c0c7b2da
PP
1887PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1888
e97d1f08
PP
1889PP/04 New "dns_use_edns0" global option.
1890
084c1d8c
PP
1891PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1892 Bugzilla 1098.
1893
4e7ee012
PP
1894PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1895 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1896
c8d52a00
PP
1897TK/01 Updated PolarSSL code to 0.14.2.
1898 Bugzilla 1097. Patch from Andreas Metzler.
1899
54e7ce4a
PP
1900PP/07 Catch divide-by-zero in ${eval:...}.
1901 Fixes bugzilla 1102.
1902
5ee6f336
PP
1903PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1904 Bugzilla 1104.
1905
c8d52a00 1906TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1907 format-string attack -- SECURITY: remote arbitrary code execution.
1908
1909TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1910 time unintentionally subject to list matching rules, letting the header
1911 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1912 arbitrary string expansion). This allowed for information disclosure.
1913
1914PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1915 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1916
10906672 1917
aa097c4c
NM
1918Exim version 4.75
1919-----------------
1920
4c04137d 1921NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1922 Bugzilla 1073
1923
7f3d9eff
TF
1924TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1925 This fixes portability to compilers other than gcc, notably
1926 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1927
159f52d2
TF
1928TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1929 makefiles for portability to HP-UX and POSIX correctness.
1930
0cc9542a
PP
1931PP/01 Permit LOOKUP_foo enabling on the make command-line.
1932 Also via indented variable definition in the Makefile.
1933 (Debugging by Oliver Heesakkers).
1934
f7274286
PP
1935PP/02 Restore caching of spamd results with expanded spamd_address.
1936 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1937
7b797365
PP
1938PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1939 Improves build reliability. Fix from: Frank Elsner
1940
caacae52
NM
1941NM/02 Fix wide character breakage in the rfc2047 coding
1942 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1943
09dcaba9
NM
1944NM/03 Allow underscore in dnslist lookups
1945 Fixes bug 1026. Patch from Graeme Fowler
1946
bc19a55b
PP
1947PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1948 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1949
bd4c9759
NM
1950NM/04 Fixed exiqgrep to cope with mailq missing size issue
1951 Fixes bug 943.
1952
b72aab72
PP
1953PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1954 is logged, to avoid truncation. Patch from John Horne.
1955
2fe76745
PP
1956PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1957 Patch from Jakob Hirsch.
1958
76aa570c
PP
1959PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1960 SQL string expansion failure details.
1961 Patch from Andrey Oktyabrski.
1962
f1e5fef5
PP
1963PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1964 Patch from Simon Arlott.
1965
4d805ee9
PP
1966PP/09 New lookups functionality failed to compile on old gcc which rejects
1967 extern declarations in function scope.
1968 Patch from Oliver Fleischmann
1969
cd59ab18
PP
1970PP/10 Use sig_atomic_t for flags set from signal handlers.
1971 Check getgroups() return and improve debugging.
1972 Fixed developed for diagnosis in bug 927 (which turned out to be
1973 a kernel bug).
1974
332f5cf3
PP
1975PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1976 Patch from Mark Zealey.
1977
29cfeb94
PP
1978PP/12 Bugzilla 1056: Improved spamd server selection.
1979 Patch from Mark Zealey.
1980
660242ad
PP
1981PP/13 Bugzilla 1086: Deal with maildir quota file races.
1982 Based on patch from Heiko Schlittermann.
1983
bc4bc4c5
PP
1984PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1985 Patch from Uwe Doering, sign-off by Michael Haardt.
1986
2e64baa9
NM
1987NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1988 variable declaration deep within a block. Bug and patch from
1989 Dennis Davis.
1990
4c04137d 1991PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1992
6bac1a9a
PP
1993PP/16 Make DISABLE_DKIM build knob functional.
1994
552193f0
NM
1995NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1996 Patch by Simon Arlott
baeee2c1 1997
1b587e48
TF
1998TF/03 Fix valgrind.h portability to C89 compilers that do not support
1999 variable argument macros. Our copy now differs from upstream.
2000
aa097c4c 2001
8c07b69f
TF
2002Exim version 4.74
2003-----------------
2004
2005TF/01 Failure to get a lock on a hints database can have serious
2006 consequences so log it to the panic log.
2007
c0ea85ab
TF
2008TF/02 Log LMTP confirmation messages in the same way as SMTP,
2009 controlled using the smtp_confirmation log selector.
2010
0761d44e
TF
2011TF/03 Include the error message when we fail to unlink a spool file.
2012
0a349494
PP
2013DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2014 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2015 for maintaining out-of-tree patches for some time.
2016
2017PP/01 Bugzilla 139: Documentation and portability issues.
2018 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2019 Handle per-OS dynamic-module compilation flags.
2020
fea24b2e
PP
2021PP/02 Let /dev/null have normal permissions.
2022 The 4.73 fixes were a little too stringent and complained about the
2023 permissions on /dev/null. Exempt it from some checks.
2024 Reported by Andreas M. Kirchwitz.
2025
6545de78
PP
2026PP/03 Report version information for many libraries, including
2027 Exim version information for dynamically loaded libraries. Created
2028 version.h, now support a version extension string for distributors
2029 who patch heavily. Dynamic module ABI change.
2030
1670ef10
PP
2031PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2032 privilege escalation vulnerability whereby the Exim run-time user
2033 can cause root to append content of the attacker's choosing to
2034 arbitrary files.
2035
c0886197
PP
2036PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2037 (Wolfgang Breyha)
2038
b7487bce
PP
2039PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2040 If dropping privileges for untrusted macros, we disabled normal logging
2041 on the basis that it would fail; for the Exim run-time user, this is not
2042 the case, and it resulted in successful deliveries going unlogged.
2043 Fixed. Reported by Andreas Metzler.
2044
8c07b69f 2045
97fd1e48 2046Exim version 4.73
ed7f7860 2047-----------------
97fd1e48
PP
2048
2049PP/01 Date: & Message-Id: revert to normally being appended to a message,
2050 only prepend for the Resent-* case. Fixes regression introduced in
2051 Exim 4.70 by NM/22 for Bugzilla 607.
2052
6901c596
PP
2053PP/02 Include check_rfc2047_length in configure.default because we're seeing
2054 increasing numbers of administrators be bitten by this.
2055
a8c8d6b5
JJ
2056JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2057
77bb000f
PP
2058PP/03 Bugzilla 994: added openssl_options main configuration option.
2059
a29e5231
PP
2060PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2061
ec5a0394 2062PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2063
55c75993
PP
2064PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2065
453a6645 2066PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2067 without a peer certificate, leading to a segfault because of an
2068 assumption that peers always have certificates. Be a little more
453a6645
PP
2069 paranoid. Problem reported by Martin Tscholak.
2070
8544e77a
PP
2071PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2072 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2073 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2074 CL also introduces -bmalware, various -d+acl logging additions and
2075 more caution in buffer sizes.
8544e77a 2076
83e029d5
PP
2077PP/09 Implemented reverse_ip expansion operator.
2078
ed7f7860
PP
2079PP/10 Bugzilla 937: provide a "debug" ACL control.
2080
7d9f747b
PP
2081PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2082
4b2241d2
PP
2083PP/12 Bugzilla 973: Implement --version.
2084
10385c15
PP
2085PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2086
dbc4b90d
PP
2087PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2088
532be449
PP
2089PP/15 Bugzilla 816: support multiple condition rules on Routers.
2090
6a8de854 2091PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2092 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2093 ignore trailing whitespace.
6a8de854 2094
5dc43717
JJ
2095JJ/02 prevent non-panic DKIM error from being sent to paniclog
2096
2097JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2098 "exim" to be used
55c75993 2099
3346ab01
PP
2100PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2101 Notification from Dr Andrew Aitchison.
2102
491fab4c
PP
2103PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2104 ExtendedDetectionInfo response format.
2105 Notification from John Horne.
2106
13eb9497
PP
2107PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2108 compatible.
2109
2110PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2111 XSL and documented dependency on system catalogs, with examples of how
2112 it normally works.
2113
7f36d675
DW
2114DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2115 access.
2116
c1d94452
DW
2117DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2118 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2119 configuration file which is writeable by the Exim user or group.
2120
e2f5dc15
DW
2121DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2122 of configuration files to cover files specified with the -C option if
2123 they are going to be used with root privileges, not just the default
2124 configuration file.
2125
cd25e41d
DW
2126DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2127 option (effectively making it always true).
2128
261dc43e
DW
2129DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2130 files to be used while preserving root privileges.
2131
fa32850b
DW
2132DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2133 that rogue child processes cannot use them.
2134
79d4bc3d
PP
2135PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2136 run-time user, instead of root.
2137
43236f35 2138PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2139 Exim run-time user without dropping privileges.
2140
fb08281f
DW
2141DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2142 result string, instead of calling string_vformat() twice with the same
2143 arguments.
3346ab01 2144
74935b98
DW
2145DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2146 for other users. Others should always drop root privileges if they use
2147 -C on the command line, even for a whitelisted configure file.
2148
90b6341f
DW
2149DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2150
57730b52
ML
2151NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2152
66581d1e 2153
465e92cf
JJ
2154Exim version 4.72
2155-----------------
2156
453a6645
PP
2157JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2158 $data_path, and $header_path variables; fixed documentation bugs and
2159 typos
465e92cf 2160
453a6645
PP
2161JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2162 exipick to access non-standard spools, including the "frozen" queue
2163 (Finput)
edae0343 2164
9bd3e22c
NM
2165NM/01 Bugzilla 965: Support mysql stored procedures.
2166 Patch from Alain Williams
2167
bb576ff7
NM
2168NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2169
5a1a5845
NM
2170NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2171 Patch from Andreas Metzler
2172
981a9fad
NM
2173NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2174 Patch from Kirill Miazine
2175
7fc497ee
NM
2176NM/05 Bugzilla 671: Added umask to procmail example.
2177
1a41defa
JJ
2178JJ/03 installed exipick 20100323.0, fixing doc bug
2179
a466095c 2180NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2181 directory. Notification and patch from Dan Rosenberg.
a466095c 2182
94a6bd0b
NM
2183TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2184
2185TK/02 Improve log output when DKIM signing operation fails.
2186
2187MH/01 Treat the transport option dkim_domain as a colon separated
2188 list, not as a single string, and sign the message with each element,
2189 omitting multiple occurences of the same signer.
2190
c1b141a8
NM
2191NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2192 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2193
b26eacf1 2194NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2195 Patch by Simon Arlott
2196
179c5980 2197PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2198 MBX locking. Notification from Dan Rosenberg.
179c5980 2199
9bd3e22c 2200
7c6d71af
NM
2201Exim version 4.71
2202-----------------
2203
7d9f747b 2204TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2205
f013fb92
NM
2206NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2207
0eb8eedd
NM
2208NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2209
663ee6d9
NM
2210NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2211
177ebd9b
NM
2212NM/04 Bugzilla 915: Flag broken perl installation during build.
2213
7c6d71af 2214
210f147e
NM
2215Exim version 4.70
2216-----------------
2217
cdd3bb85 2218TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2219 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2220
2221TK/02 Write list of recipients to X-Envelope-Sender header when building
2222 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2223 Hirsch).
cdd3bb85
TK
2224
2225TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2226 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2227 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2228
2229TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2230 by Mark Daniel Reidel <mr@df.eu>.
2231
210f147e
NM
2232NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2233 When building exim an external PCRE library is now needed -
2234 PCRE is a system library on the majority of modern systems.
2235 See entry on PCRE_LIBS in EDITME file.
2236
deafd5b3
NM
2237NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2238 conversation. Added nologin parameter to request.
7d9f747b 2239 Patch contributed by Kirill Miazine.
deafd5b3 2240
089793a4
TF
2241TF/01 Do not log submission mode rewrites if they do not change the address.
2242
5f16ca82
TF
2243TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2244
dae9d94e 2245NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2246 log files in place. Contributed by Roberto Lima.
dae9d94e 2247
7d9f747b 2248NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2249
06864c44
TF
2250TF/03 Bugzilla 615: When checking the local_parts router precondition
2251 after a local_part_suffix or local_part_prefix option, Exim now
2252 does not use the address's named list lookup cache, since this
2253 contains cached lookups for the whole local part.
2254
65a7d8c3 2255NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2256 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2257
23510047 2258TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2259
7d9f747b 2260NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2261
7d8eec3a 2262NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2263 Patch provided by Jan Srzednicki.
6c588e74 2264
89dec7b6
TF
2265TF/05 Leading white space used to be stripped from $spam_report which
2266 wrecked the formatting. Now it is preserved.
5f28a6e8 2267
a99de90c
TF
2268TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2269 that they are available at delivery time.
2270
e2803e40
TF
2271TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2272
7199e1ee
TF
2273TF/08 TLS error reporting now respects the incoming_interface and
2274 incoming_port log selectors.
2275
e276e04b
TF
2276TF/09 Produce a more useful error message if an SMTP transport's hosts
2277 setting expands to an empty string.
2278
ce552449 2279NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2280 Patch provided by Phil Pennock.
ce552449 2281
e765a0f1 2282NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2283 Patch provided by Richard Godbee.
e765a0f1 2284
4f054c63 2285NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2286 acl_smtp_notquit, added index entry.
4f054c63 2287
7d9f747b
PP
2288NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2289 Patch provided by Eugene Bujak.
24c929a2 2290
7d9f747b
PP
2291NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2292 accept(). Patch provided by Maxim Dounin.
cf73943b 2293
b52bc06e 2294NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2295 Patch provided by Phil Pennock.
b52bc06e 2296
447de4b0
NM
2297NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2298
4c69d561 2299NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2300 Patch provided by Brad "anomie" Jorsch.
4c69d561 2301
d5c39246 2302NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2303 Patch provided by Dean Brooks.
9b989985 2304
0b23848a
TK
2305TK/05 Add native DKIM support (does not depend on external libraries).
2306
8f3414a1 2307NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2308 Patch provided by Graeme Fowler.
e2aacdfd 2309
fb6f955d
NM
2310NM/16 Bugzilla 851: Documentation example syntax fix.
2311
2312NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2313
7d9f747b
PP
2314NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2315 lsearch.
dbb0bf41 2316
7d9f747b
PP
2317NM/19 Bugzilla 745: TLS version reporting.
2318 Patch provided by Phil Pennock.
f3766eb5 2319
7d9f747b
PP
2320NM/20 Bugzilla 167: bool: condition support.
2321 Patch provided by Phil Pennock.
36f12725 2322
7d9f747b
PP
2323NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2324 clients. Patch provided by Phil Pennock.
e6060e2c 2325
7d9f747b
PP
2326NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2327 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2328
7d9f747b
PP
2329NM/23 Bugzilla 687: Fix misparses in eximstats.
2330 Patch provided by Heiko Schlittermann.
d5c13d66 2331
7d9f747b
PP
2332NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2333 Patch provided by Heiko Schlittermann.
b2335c0b 2334
7d9f747b 2335NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2336 plus update to original patch.
f4cd9433 2337
7d9f747b 2338NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2339
7d9f747b
PP
2340NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2341 Patch provided by David Brownlee.
8dc71ab3 2342
7d9f747b 2343NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2344
7d9f747b 2345NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2346
7d9f747b 2347NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2348
7d9f747b 2349NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2350
17792b53 2351NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2352 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2353
7d9f747b
PP
2354NM/33 Bugzilla 898: Transport filter timeout fix.
2355 Patch by Todd Rinaldo.
52383f8f 2356
91576cec 2357NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2358 Patch by Serge Demonchaux.
5ca6d115 2359
7d9f747b
PP
2360NM/35 Bugzilla 39: Base64 decode bug fixes.
2361 Patch by Jakob Hirsch.
baee9eee 2362
7d9f747b 2363NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2364
7d9f747b 2365NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2366
7d9f747b 2367NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2368
7d9f747b 2369NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2370
deafd5b3 2371
47db1125
NM
2372Exim version 4.69
2373-----------------
2374
4b3504d0
TK
2375TK/01 Add preliminary DKIM support. Currently requires a forked version of
2376 ALT-N's libdkim that I have put here:
2377 http://duncanthrax.net/exim-experimental/
2378
2379 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2380 were called 'true' and it seems that C99 defines that as a reserved
2381 keyword to be used with 'bool' variable types. That means you could
2382 not include C99-style headers which use bools without triggering
2383 build errors in sieve.c.
2384
81ea09ca
NM
2385NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2386 as mailq or other aliases. Changed the --help handling significantly
2387 to do whats expected. exim_usage() emits usage/help information.
2388
f13cddcb
SC
2389SC/01 Added the -bylocaldomain option to eximstats.
2390
7d9f747b 2391NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2392
7d9f747b 2393NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2394
7d9f747b 2395NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2396
2397
eb4c0de6
PH
2398Exim version 4.68
2399-----------------
2400
2401PH/01 Another patch from the Sieve maintainer.
2402
6a3bceb1
PH
2403PH/02 When an IPv6 address is converted to a string for single-key lookup
2404 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2405 dots are used instead of colons so that keys in lsearch files need not
2406 contain colons. This was done some time before quoting was made available
2407 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2408 (notated using the quote facility) so as to distinguish them from IPv4
2409 keys. This meant that lookups for IP addresses in host lists did not work
2410 for iplsearch lookups.
2411
2412 This has been fixed by arranging for IPv6 addresses to be expressed with
2413 colons if the lookup type is iplsearch. This is not incompatible, because
2414 previously such lookups could never work.
2415
4c04137d 2416 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2417 ordinary lsearch keys. However, making the change in all cases is
2418 incompatible and would probably break a number of configurations.
2419
2e30fa9d
TK
2420TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2421 version.
2422
0806a9c5
MH
2423MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2424 conversion specification without a maximum field width, thereby enabling
2425 a rogue spamd server to cause a buffer overflow. While nobody in their
2426 right mind would setup Exim to query an untrusted spamd server, an
2427 attacker that gains access to a server running spamd could potentially
2428 exploit this vulnerability to run arbitrary code as the Exim user.
2429
ae276964
TK
2430TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2431 $primary_hostname instead of what libspf2 thinks the hosts name is.
2432
0f2cbd1b
MH
2433MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2434 a directory entry by the name of the lookup key. Previously, if a
2435 symlink pointed to a non-existing file or a file in a directory that
2436 Exim lacked permissions to read, a lookup for a key matching that
2437 symlink would fail. Now it is enough that a matching directory entry
2438 exists, symlink or not. (Bugzilla 503.)
2439
2b85bce7
PH
2440PH/03 The body_linecount and body_zerocount variables are now exported in the
2441 local_scan API.
2442
93655c46
PH
2443PH/04 Added the $dnslist_matched variable.
2444
6c512171
PH
2445PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2446 This means they are set thereafter only if the connection becomes
2447 encrypted.
2448
2449PH/06 Added the client_condition to authenticators so that some can be skipped
2450 by clients under certain conditions.
2451
aa6dc513
PH
2452PH/07 The error message for a badly-placed control=no_multiline_responses left
2453 "_responses" off the end of the name.
2454
a96603a0
PH
2455PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2456
8f240103
PH
2457PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2458 (without spaces) instead of just copying the configuration text.
2459
2460PH/10 Added the /noupdate option to the ratelimit ACL condition.
2461
d677b2f2
PH
2462PH/11 Added $max_received_linelength.
2463
d52120f2
PH
2464PH/12 Added +ignore_defer and +include_defer to host lists.
2465
64f2600a
PH
2466PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2467 way in which PCRE > 7.0 is built.
2468
8669f003
PH
2469PH/14 Implemented queue_only_load_latch.
2470
a4dc33a8
PH
2471PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2472 MAIL command. The effect was to mangle the value on 64-bit systems.
2473
d6a60c0f
PH
2474PH/16 Another patch from the Sieve maintainer.
2475
8f128379
PH
2476PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2477
8932dffe
PH
2478PH/18 If a system quota error occurred while trying to create the file for
2479 a maildir delivery, the message "Mailbox is full" was not appended to the
2480 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2481 only to a quota excession during the actual writing of the file.
d6a60c0f 2482
ddea74fa 2483PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2484 characters?) which causes problems in log lines. The DN values are now
2485 passed through string_printing() before being added to log lines.
2486
ddea74fa 2487PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2488 and InterBase are left for another time.)
2489
ddea74fa
PH
2490PH/21 Added message_body_newlines option.
2491
ce9f225c
PH
2492PH/22 Guard against possible overflow in moan_check_errorcopy().
2493
19897d52
PH
2494PH/23 POSIX allows open() to be a macro; guard against that.
2495
bc64a74d
PH
2496PH/24 If the recipient of an error message contained an @ in the local part
2497 (suitably quoted, of course), incorrect values were put in $domain and
2498 $local_part during the evaluation of errors_copy.
2499
eb4c0de6 2500
b4ed4da0
PH
2501Exim version 4.67
2502-----------------
2503
22ad45c9
MH
2504MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2505 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2506 Jan Srzednicki.
2507
b4ed4da0
PH
2508PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2509 issue a MAIL command.
2510
431b7361
PH
2511PH/02 In an ACL statement such as
2512
2513 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2514
2515 if a client was not listed at all, or was listed with a value other than
2516 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2517 the condition was not true (as it should be), so access was not denied.
2518 The bug was that the ! inversion was incorrectly passed on to the second
2519 item. This has been fixed.
2520
2521PH/03 Added additional dnslists conditions == and =& which are different from
2522 = and & when the dns lookup returns more than one IP address.
2523
83da1223
PH
2524PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2525 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2526
54fc8428
PH
2527PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2528 FSYNC, which compiles an option called disable_fsync that allows for
2529 bypassing fsync(). The documentation is heavily laced with warnings.
2530
34c5e8dd
SC
2531SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2532
bbe15da8
PH
2533PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2534 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2535 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2536 including adding "make clean"; (3) Added -fPIC when compiling the test
2537 dynamically loaded module, to get rid of a warning.
2538
0e8a9471
MH
2539MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2540 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2541 = 0s. The bug is otherwise harmless.
2542
f0872424
PH
2543PH/07 There was a bug in the dovecot authenticator such that the value of
2544 $auth1 could be overwritten, and so not correctly preserved, after a
2545 successful authentication. This usually meant that the value preserved by
2546 the server_setid option was incorrect.
2547
b01dd148
PH
2548PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2549
6bf342e1
PH
2550PH/09 Installed PCRE release 7.0.
2551
273f34d0
PH
2552PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2553 run for batched SMTP input. It is now run at the start of every message
2554 in the batch. While fixing this I discovered that the process information
2555 (output by running exiwhat) was not always getting set for -bs and -bS
2556 input. This is fixed, and it now also says "batched" for BSMTP.
2557
cf8b11a5
PH
2558PH/11 Added control=no_pipelining.
2559
41c7c167
PH
2560PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2561 patch, slightly modified), and move the expansion of helo_data till after
2562 the connection is made in the smtp transport (so it can use these
2563 values).
2564
9c57cbc0
PH
2565PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2566
f3f065bb
PH
2567PH/14 Added log_selector = +pid.
2568
047bdd8c
PH
2569PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2570
0ce9abe6
PH
2571PH/16 Add ${if forany and ${if forall.
2572
0e22dfd1
PH
2573PH/17 Added dsn_from option to vary the From: line in DSNs.
2574
4c590bd1
PH
2575PH/18 Flush SMTP output before performing a callout, unless control =
2576 no_callout_flush is set.
2577
09945f1e
PH
2578PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2579 was true (the default) a successful delivery failed to delete the retry
2580 item, thus causing premature timeout of the address. The bug is now
2581 fixed.
2582
c51b8e75
PH
2583PH/20 Added hosts_avoid_pipelining to the smtp transport.
2584
e28326d8 2585PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2586 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2587 other ACL rejections are.
2588
75b1493f
PH
2589PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2590 with slight modification.
2591
7c5214ec
PH
2592PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2593 draft, changing the syntax and factoring some duplicate code".
2594
4311097e
PH
2595PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2596 for deliveries of the second and subsequent messages over the same SMTP
2597 connection.
2598
29f89cad
PH
2599PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2600 ${reduce, with only minor "tidies".
2601
5e687460
SC
2602SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2603
c3611384
PH
2604PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2605 expansion side effects.
2606
5a11a7b4
PH
2607PH/27 When a message times out after an over-quota error from an Exim-imposed
2608 quota, the bounce message says "mailbox is full". This message was not
2609 being given when it was a system quota that was exceeded. It now should
2610 be the same.
2611
0e20aff9
MH
2612MH/03 Made $recipients available in local_scan(). local_scan() already has
2613 better access to the recipient list through recipients_list[], but
2614 $recipients can be useful in postmaster-provided expansion strings.
2615
ca86f471
PH
2616PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2617 in the case of a MAIL command with additional options following the
2618 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2619 were accidentally chopped off.
2620
a14e5636
PH
2621PH/29 SMTP synchronization checks are implemented when a command is read -
2622 there is a check that no more input is waiting when there shouldn't be
2623 any. However, for some commands, a delay in an ACL can mean that it is
2624 some time before the response is written. In this time, more input might
2625 arrive, invalidly. So now there are extra checks after an ACL has run for
2626 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2627 pipelining has not been advertised.
2628
ec95d1a6
PH
2629PH/30 MH's patch to allow iscntrl() characters to be list separators.
2630
42855d71
PH
2631PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2632 returned in the SMTP response when smtp_return_error_details was false.
2633 This has been fixed.
2634
57c2c631
PH
2635PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2636 instead of the C I/O that was originally supplied, because problems were
2637 reported on Solaris.
2638
58c01c94
PH
2639PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2640 Exim which did not show up earlier: it was assuming that a call to
2641 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2642 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2643 was a macro that became an assignment, so it seemed to work. This has
2644 changed to a proper function call with a void return, hence the compile
2645 error. Exim's code has been fixed.
2646
dee5a20a
PH
2647PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2648 cpus.
2649
d2ee6114
PH
2650PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2651
b2d5182b
PH
2652PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2653
79749a79
PH
2654PH/37 If a message is not accepted after it has had an id assigned (e.g.
2655 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2656 "Completed" line in the log. When some messages of this type were
2657 selected by exigrep, they were listed as "not completed". Others were
2658 picked up by some special patterns. I have improved the selection
2659 criteria to be more general.
79749a79 2660
c456d9bb
PH
2661PH/38 The host_find_failed option in the manualroute router can now be set
2662 to "ignore", to completely ignore a host whose IP address cannot be
2663 found. If all hosts are ignored, the behaviour is controlled by the new
2664 host_all_ignored option.
2665
cd9868ec
PH
2666PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2667 homing or because of multiple MX records with /mx) generated more than
2668 one IP address, and the following item turned out to be the local host,
2669 all the secondary addresses of the first item were incorrectly removed
2670 from the list, along with the local host and any following hosts (which
2671 is what is supposed to happen).
2672
ebeaf996
PH
2673PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2674 whoever called Exim into the -H file. In the case of the daemon it was
2675 behaving confusingly. When first started, it used values for whoever
2676 started the daemon, but after a SIGHUP it used the Exim user (because it
2677 calls itself on a restart). I have changed the code so that it now always
2678 uses the Exim user.
2679
2679d413
PH
2680PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2681 message are rejected with the same error (e.g. no authentication or bad
2682 sender address), and a DATA command is nevertheless sent (as can happen
2683 with PIPELINING or a stupid MUA), the error message that was given to the
2684 RCPT commands is included in the rejection of the DATA command. This is
2685 intended to be helpful for MUAs that show only the final error to their
2686 users.
2687
84024b72
PH
2688PH/42 Another patch from the Sieve maintainer.
2689
8005d38e
SC
2690SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2691 Eximstats - Fixed some broken HTML links and added missing column headers
2692 (Jez Hancock).
2693 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2694 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2695
3298c6c6
SC
2696SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2697
a43a27c5
PH
2698PH/43 Yet another patch from the Sieve maintainer.
2699
58eb016e 2700PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2701 the response to the final '.' that terminates a message, but only in the
2702 case where the client has not sent further data following the '.'
2703 (unfortunately, this is allowed). However, in many cases there won't be
2704 any further data because there won't be any more messages to send. A call
2705 to select() can be used: if it shows that the input is "ready", there is
2706 either input waiting, or the socket has been closed. An attempt to read
2707 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2708 would have sent an OK response which the client would never have see.
563b63fa
PH
2709 This could lead to message repetition. This fix should cure that, at
2710 least in a lot of common cases.
58eb016e 2711
b43a74ea
PH
2712PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2713 advertised in response to EHLO.
2714
b4ed4da0 2715
5dd1517f
PH
2716Exim version 4.66
2717-----------------
2718
2719PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2720 fixed by 4.65/MH/01 (is this a record?) are fixed:
2721
2722 (i) An empty string was always treated as zero by the numeric comparison
2723 operators. This behaviour has been restored.
2724
2725 (ii) It is documented that the numeric comparison operators always treat
2726 their arguments as decimal numbers. This was broken in that numbers
2727 starting with 0 were being interpreted as octal.
2728
2729 While fixing these problems I realized that there was another issue that
2730 hadn't been noticed. Values of message_size_limit (both the global option
2731 and the transport option) were treated as octal if they started with 0.
2732 The documentation was vague. These values are now always treated as
2733 decimal, and I will make that clear in the documentation.
2734
2735
93cfa765
TK
2736Exim version 4.65
2737-----------------
2738
2739TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2740 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2741 versions. (#438)
2742
d6066548
MH
2743MH/01 Don't check that the operands of numeric comparison operators are
2744 integers when their expansion is in "skipping" mode (fixes bug
2745 introduced by 4.64-PH/07).
2746
4362ff0d
PH
2747PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2748 child addresses, Exim now panics and dies. Previously, because the count
2749 is held in a short int, deliveries were likely to be lost. As such a
2750 large number of recipients for a single message is ridiculous
2751 (performance will be very, very poor), I have chosen to impose a limit
2752 rather than extend the field.
2753
93cfa765 2754
944e9e9c
TF
2755Exim version 4.64
2756-----------------
aa41d2de 2757
21d74bd9
TK
2758TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2759 leftover -K file (the existence of which was triggered by #402).
2760 While we were at it, introduced process PID as part of the -K
2761 filename. This should rule out race conditions when creating
2762 these files.
2763
2764TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2765 processing considerably. Previous code took too long for large mails,
2766 triggering a timeout which in turn triggers #401.
2767
2768TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2769 in the DK code in transports.c. sendfile() is not really portable,
2770 hence the _LINUX specificness.
944e9e9c
TF
2771
2772TF/01 In the add_headers option to the mail command in an Exim filter,
2773 there was a bug that Exim would claim a syntax error in any
2774 header after the first one which had an odd number of characters
2775 in the field name.
2776
2b1c6e3a
PH
2777PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2778 callout verification, Exim cached a "reject" for the entire domain. This
2779 is correct for most verifications, but it is not correct for a recipient
2780 verification with use_sender or use_postmaster set, because in that case
2781 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2782 case of MAIL FROM:<> rejection from other early rejections (e.g.
2783 rejection of HELO). When verifying a recipient using a non-null MAIL
2784 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2785 Whatever the result of the callout, the value of the domain cache is
2786 left unchanged (for any other kind of callout, getting as far as trying
2787 RCPT means that the domain itself is ok).
2788
1f872c80
PH
2789PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2790 gcc 4.1.1 threw up.
2791
2792PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2793 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2794 session, the daemon ignores ECONNECT errors and logs others; it now
2795 ignores EPIPE as well.
2796
d203e649
PH
2797PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2798 (quoted-printable decoding).
2799
cc2ed8f7 2800PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2801 later the small subsequent patch to fix an introduced bug.
f951fd57 2802
ddfcd446
PH
2803PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2804
d45b1de8
PH
2805PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2806
2807PH/08 An error is now given if message_size_limit is specified negative.
2808
38a0a95f 2809PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2810 to be given (somewhat) arbitrary names.
38a0a95f 2811
a2405d83
JJ
2812JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2813 in 4.64-PH/09.
2814
2815JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2816 miscellaneous code fixes
2817
6ea85e9a
PH
2818PH/10 Added the log_reject_target ACL modifier to specify where to log
2819 rejections.
2820
26da7e20
PH
2821PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2822 hostname. This is wrong, because it relates to the incoming message (and
2823 probably the interface on which it is arriving) and not to the outgoing
2824 callout (which could be using a different interface). This has been
2825 changed to use the value of the helo_data option from the smtp transport
2826 instead - this is what is used when a message is actually being sent. If
2827 there is no remote transport (possible with a router that sets up host
2828 addresses), $smtp_active_hostname is used.
6ea85e9a 2829
14aa5a05 2830PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2831 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2832 (a) The code assumed that strncpy() returns a negative number on buffer
2833 overflow, which isn't the case. Replaced with Exim's string_format()
2834 function.
2835 (b) There were several signed/unsigned issues. I just did the minimum
2836 hacking in of casts. There is scope for a larger refactoring.
2837 (c) The code used strcasecmp() which is not a standard C function.
2838 Replaced with Exim's strcmpic() function.
2839 (d) The code set only $1; it now sets $auth1 as well.
2840 (e) A simple test gave the error "authentication client didn't specify
2841 service in request". It would seem that Dovecot has changed its
2842 interface. Fortunately there's a specification; I followed it and
2843 changed what the client sends and it appears to be working now.
2844
ff75a1f7
PH
2845PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2846 decoding.
2847
e6f6568e
PH
2848PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2849 address A is aliased to B and C, where B exists and C does not. Without
2850 -v the output is "A verified" because verification stops after a
2851 successful redirection if more than one address is generated. However,
2852 with -v the child addresses are also verified. Exim was outputting "A
2853 failed to verify" and then showing the successful verification for C,
2854 with its parentage. It now outputs "B failed to verify", showing B's
2855 parentage before showing the successful verification of C.
2856
d6f6e0dc
PH
2857PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2858 look up a TXT record in a specific list after matching in a combined
2859 list.
2860
322050c2
PH
2861PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2862 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2863 they consult the DNS. I had assumed they would set it the way they
2864 wanted; and indeed my experiments on Linux seem to show that in some
2865 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2866 To be on the safe side, however, I have now made the interface to
2867 host_find_byname() similar to host_find_bydns(), with an argument
2868 containing the DNS resolver options. The host_find_byname() function now
2869 sets these options at its start, just as host_find_bydns() does. The smtp
2870 transport options dns_qualify_single and dns_search_parents are passed to
2871 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2872 of host_find_byname() use the default settings of RES_DEFNAMES
2873 (qualify_single) but not RES_DNSRCH (search_parents).
2874
08955dd3
PH
2875PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2876 spool_read_header() do less string testing, by means of a preliminary
2877 switch on the second character of optional "-foo" lines. (This is
2878 overdue, caused by the large number of possibilities that now exist.
2879 Originally there were few.) While I was there, I also converted the
2880 str(n)cmp tests so they don't re-test the leading "-" and the first
2881 character, in the hope this might squeeze out yet more improvement.
2882
1eccaa59
PH
2883PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2884 flag allowing group syntax was set by the header_syntax check but not
2885 turned off, possible causing trouble later; (2) The flag was not being
2886 set at all for the header_verify test, causing "group"-style headers to
2887 be rejected. I have now set it in this case, and also caused header_
2888 verify to ignore an empty address taken from a group. While doing this, I
2889 came across some other cases where the code for allowing group syntax
2890 while scanning a header line wasn't quite right (mostly, not resetting
2891 the flag correctly in the right place). These bugs could have caused
2892 trouble for malformed header lines. I hope it is now all correct.
2893
602e59e5
PH
2894PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2895 with the "reply" argument non-NULL. The code, however (which originally
2896 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2897 but it didn't always do it. This confused somebody who was copying the
2898 code for some other use. I have removed all the tests.
2899
411ef850
PH
2900PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2901 feature that was used to support insecure browsers during the U.S. crypto
2902 embargo. It requires special client support, and Exim is probably the
2903 only MTA that supported it -- and would never use it because real RSA is
2904 always available. This code has been removed, because it had the bad
2905 effect of slowing Exim down by computing (never used) parameters for the
2906 RSA_EXPORT functionality.
2907
7befa435
PH
2908PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2909 authenticator to fail if there's a tab character in the incoming data
2910 (there should never be unless someone is messing about, as it's supposed
2911 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2912 if the connection is using TLS or if the remote IP is the same as the
2913 local IP, and the "valid-client-cert option" if a client certificate has
2914 been verified.
2915
48da4259 2916PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2917 authenticators. This can be used for authorization after authentication
2918 succeeds. (In the case of plaintext, it servers for both authentication
2919 and authorization.)
2920
48da4259
PH
2921PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2922 if any retry times were supplied.
2923
d1d5595c
PH
2924PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2925 connection, where there is no client IP address to check. In this
2926 situation, the verify now always succeeds.
2927
0ef732d9
PH
2928PH/25 Applied John Jetmore's -Mset patch.
2929
328895cc
PH
2930PH/26 Added -bem to be like -Mset, but loading a message from a file.
2931
fd700877
PH
2932PH/27 In a string expansion for a processed (not raw) header when multiple
2933 headers of the same name were present, leading whitespace was being
2934 removed from all of them, but trailing whitespace was being removed only
2935 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2936 before concatenation. Completely empty headers in a concatenation (as
2937 before) are ignored.
fd700877 2938
8dce1a6f
PH
2939PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2940 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2941
17af4a17
PH
2942PH/29 [Removed. This was a change that I later backed out, and forgot to
2943 correct the ChangeLog entry (that I had efficiently created) before
2944 committing the later change.]
f6c332bd
PH
2945
2946PH/30 Exim was sometimes attempting to deliver messages that had suffered
2947 address errors (4xx response to RCPT) over the same connection as other
2948 messages routed to the same hosts. Such deliveries are always "forced",
2949 so retry times are not inspected. This resulted in far too many retries
2950 for the affected addresses. The effect occurred only when there were more
2951 hosts than the hosts_max_try setting in the smtp transport when it had
2952 the 4xx errors. Those hosts that it had tried were not added to the list
2953 of hosts for which the message was waiting, so if all were tried, there
2954 was no problem. Two fixes have been applied:
2955
2956 (i) If there are any address or message errors in an SMTP delivery, none
2957 of the hosts (tried or untried) are now added to the list of hosts
2958 for which the message is waiting, so the message should not be a
2959 candidate for sending over the same connection that was used for a
2960 successful delivery of some other message. This seems entirely
2961 reasonable: after all the message is NOT "waiting for some host".
2962 This is so "obvious" that I'm not sure why it wasn't done
2963 previously. Hope I haven't missed anything, but it can't do any
2964 harm, as the worst effect is to miss an optimization.
2965
2966 (ii) If, despite (i), such a delivery is accidentally attempted, the
2967 routing retry time is respected, so at least it doesn't keep
2968 hammering the server.
2969
c1114884
PH
2970PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2971 in ${readsocket because some servers need this prod.
2972
7a0743eb
PH
2973PH/32 Added some extra debug output when updating a wait-xxx database.
2974
0d85fa3f
PH
2975PH/33 The hint "could be header name not terminated by colon", which has been
2976 given for certain expansion errors for a long time, was not being given
2977 for the ${if def:h_colon_omitted{... case.
2978
1bf43b78
PH
2979PH/34 The spec says: "With one important exception, whenever a domain list is
2980 being scanned, $domain contains the subject domain." There was at least
2981 one case where this was not true.
2982
520de300
PH
2983PH/35 The error "getsockname() failed: connection reset by peer" was being
2984 written to the panic log as well as the main log, but it isn't really
2985 panic-worthy as it just means the connection died rather early on. I have
2986 removed the panic log writing for the ECONNRESET error when getsockname()
2987 fails.
2988
48c7f9e2
PH
2989PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2990 runs only) independently of the message's sender address. This meant
2991 that, if the 4xx error was in fact related to the sender, a different
2992 message to the same recipient with a different sender could confuse
4c04137d 2993 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2994 server, but other circumstances could also provoke similar problems.
2995 I have changed the default so that the retry time for these errors is now
2996 based a combination of the sender and recipient addresses. This change
2997 can be overridden by setting address_retry_include_sender=false in the
2998 smtp transport.
2999
99ea1c86
PH
3000PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3001 remote server are returned as part of bounce messages. This was not
3002 happening for LMTP over a pipe (the lmtp transport), but now it is the
3003 same for both kinds of LMTP.
3004
a2042e78
PH
3005PH/38 Despite being documented as not happening, Exim was rewriting addresses
3006 in header lines that were in fact CNAMEs. This is no longer the case.
3007
4fbcfc2e
PH
3008PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3009 and queue runs started by the daemon processed all messages. This has
3010 been fixed so that -R and -S can now usefully be given with -q<time>.
3011
aa41d2de
PH
3012PH/40 Import PCRE release 6.7 (fixes some bugs).
3013
af561417
PH
3014PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3015
3cc66b45
PH
3016PH/42 Give an error if -q is specified more than once.
3017
194cc0e4
PH
3018PH/43 Renamed the variables $interface_address and $interface_port as
3019 $received_ip_address and $received_port, to make it clear that these
3020 values apply to message reception, and not to the outgoing interface when
3021 a message is delivered. (The old names remain recognized, of course.)
3022
a401ddaa
PH
3023PH/44 There was no timeout on the connect() call when using a Unix domain
3024 socket in the ${readsocket expansion. There now is.
3025
4e88a19f
PH
3026PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3027 be meaningful with "accept".
3028
d7d7b289
SC
3029SC/01 Eximstats V1.43
3030 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3031
3032SC/02 Eximstats V1.44
3033 Use a glob alias rather than an array ref in the generated
3034 parser. This improves both readability and performance.
3035
3036SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3037 Collect SpamAssassin and rejection statistics.
3038 Don't display local sender or destination tables unless
3039 there is data to show.
3040 Added average volumes into the top table text output.
3041
3042SC/04 Eximstats V1.46
3043 Collect data on the number of addresses (recipients)
3044 as well as the number of messages.
3045
3046SC/05 Eximstats V1.47
3047 Added 'Message too big' to the list of mail rejection
3048 reasons (thanks to Marco Gaiarin).
3049
3050SC/06 Eximstats V1.48
3051 Mainlog lines which have GMT offsets and are too short to
3052 have a flag are now skipped.
3053
3054SC/07 Eximstats V1.49 (Alain Williams)
3055 Added the -emptyok flag.
3056
3057SC/08 Eximstats V1.50
3058 Fixes for obtaining the IP address from reject messages.
3059
0ea2a468
JJ
3060JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3061 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3062 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3063
3064JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3065 match 4.64-PH/13
3066
3067JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3068 are found, allow negative numbers in numeric criteria)
3069
3070JJ/06 exipick.20061117.2, added new $message_body_missing variable
3071
3072JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3073 to match changes made in 4.64-PH/43
3074
8a10f5a4
PH
3075PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3076
30e18802
PH
3077PH/47 Put in an explicit test for a DNS lookup of an address record where the
3078 "domain" is actually an IP address, and force a failure. This locks out
3079 those revolvers/nameservers that support "A-for-A" lookups, in
3080 contravention of the specifications.
3081
55728a4f
PH
3082PH/48 When a host name was looked up from an IP address, and the subsequent
3083 forward lookup of the name timed out, the host name was left in
3084 $sender_host_name, contrary to the specification.
d7d7b289 3085
d7837193
PH
3086PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3087 restricted to single-key lookups, Exim was not diagnosing an error if
3088 * or *@ was used with a query-style lookup.
3089
87054a31
PH
3090PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3091
ea2c01d2
MH
3092MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3093 long ago, but noone interested enough thought of it. Let's just say that
3094 the "1.1" means that there are some new functions that weren't there at
3095 some point in the past.
3096
e4fa6968
PH
3097PH/51 Error processing for expansion failure of helo_data from an smtp
3098 transport during callout processing was broken.
3099
56f5d9bd
PH
3100PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3101 tested/used via the -bh/-bhc/-bs options.
3102
922e1c28
PH
3103PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3104 bug, fixed in subsequent PCRE releases).
3105
21eb6e72
PH
3106PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3107 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3108
a0540757
PH
3109PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3110
944e9e9c 3111
478be7b0
SC
3112Exim version 4.63
3113-----------------
3114
3115SC/01 Use a glob alias rather than an array ref in eximstats generated
3116 parser. This improves both readability and performance.
3117
3118SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3119 Don't display local sender or destination tables in eximstats unless
3120 there is data to show.
3121 Added average volumes into the eximstats top table text output.
3122
3123SC/03 Collect data on the number of addresses (recipients) as well
3124 as the number of messages in eximstats.
3125
2b965a65
TF
3126TF/01 Correct an error in the documentation for the redirect router. Exim
3127 does (usually) call initgroups() when daemonizing.
478be7b0 3128
45b91596
PH
3129TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3130 with consistent privilege compared to when running as a daemon.
478be7b0 3131
c59f5781
TF
3132TF/03 Note in the spec that $authenticated_id is not set for local
3133 submissions from trusted users.
3134
90fc3069
TF
3135TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3136 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3137
6083aca0
TF
3138TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3139 by adding some example configuration directives to the default
3140 configuration file. A little bit of work is required to uncomment the
3141 directives and define how usernames and passwords are checked, but
3142 there is now a framework to start from.
3143
765b530f
PH
3144PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3145 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3146 without this. I don't know how relevant this is to other LDAP libraries.
3147
4e167a8c
PH
3148PH/02 Add the verb name to the "unknown ACL verb" error.
3149
4608d683
PH
3150PH/03 Magnus Holmgren's patch for filter_prepend_home.
3151
b8dc3e4a
PH
3152PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3153
5418e93b
PH
3154PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3155 directory not expanded when it should be if an expanded home directory
3156 was set for the address (which is overridden by the transport).
3157
b4a9bda2
PH
3158PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3159 libradius.
3160
45b91596
PH
3161PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3162 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3163 because it is too late at that time, and has no effect.
3164
5547e2c5
PH
3165PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3166 security issue with \' (bugzilla #107). I could not use the
3167 PQescapeStringConn() function, because it needs a PGconn value as one of
3168 its arguments.
3169
dbcef0ea
PH
3170PH/08 When testing addresses using -bt, indicate those final addresses that
3171 are duplicates that would not cause an additional delivery. At least one
3172 person was confused, thinking that -bt output corresponded to deliveries.
3173 (Suppressing duplicates isn't a good idea as you lose the information
3174 about possibly different redirections that led to the duplicates.)
3175
25257489
PH
3176PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3177 systems where poll() doesn't work, in particular OS X.
3178
c816d124
PH
3179PH/10 Added more information to debugging output for retry time not reached.
3180
a9ccd69a
PH
3181PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3182 operations in malware.c.
3183
75fa1910
PH
3184PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3185 signatures.
3186
a7d7aa58
PH
3187PH/13 If write_rejectlog was set false when logging was sent to syslog with
3188 syslog_duplication set false, log lines that would normally be written
3189 both the the main log and to the reject log were not written to syslog at
3190 all.
3191
42119b09
PH
3192PH/14 In the default configuration, change the use of "message" in ACL warn
3193 statements to "add_header".
3194
41609df5
PH
3195PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3196 not followed by a command (e.g. "seen endif").
3197
a5bd321b
PH
3198PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3199 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3200 latter.
3201
e85a7ad5 3202PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3203 so that it is now:
3204
e85a7ad5
PH
3205 ${if or { \
3206 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3207 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3208 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3209 }{no}{yes}}
3210
e85a7ad5
PH
3211 The Auto-Submitted: and various List- headers are standardised, whereas I
3212 don't think Precedence: ever was.
5dff5817 3213
d8fe1c03
PH
3214PH/18 Refactored debugging code in route_finduser() to show more information,
3215 in particular, the error code if getpwnam() issues one.
3216
16282d2b
PH
3217PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3218 This is apparently needed in addition to the PH/07 change above to avoid
3219 any possible encoding problems.
3220
35d40a98
PH
3221PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3222 but not after initializing Perl.
3223
034d99ab
PH
3224PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3225 output them only if debugging. By default they are written stderr,
3226 apparently, which is not desirable.
3227
6ec97b1b
PH
3228PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3229 queries.
3230
e22ca4ac
JJ
3231JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3232 --not options
3233
3234JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3235
33d73e3b
PH
3236PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3237 authenticated or an ident call has been made. Suppress the default
3238 values for $authenticated_id and $authenticated_sender (but permit -oMai
3239 and -oMas) when testing with -bh.
3240
9ecb03f3
PH
3241PH/24 Re-jigged the order of the tests in the default configuration so that the
3242 tests for valid domains and recipients precede the DNS black list and CSA
3243 tests, on the grounds that those ones are more expensive.
3244
084efe8d
PH
3245PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3246 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3247 This bug exists in every version of Exim that I still have, right back to
3248 0.12.
3249
366fc9f0
PH
3250PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3251 However, an attempt to turn on case-sensitivity in a regex key by
3252 including (?-i) didn't work because the subject string was already
3253 lowercased, and the effects were non-intuitive. It turns out that a
3254 one-line patch can be used to allow (?-i) to work as expected.
3255
c59f5781 3256
c887c79e
TF
3257Exim version 4.62
3258-----------------