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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
cf3cd306
HSHR
8Since Exim version 4.90
9-----------------------
459fca58 10
c39c8870
GF
11GF/01 DEFER rather than ERROR on redis cluster MOVED response.
12 When redis_servers is set to a list of > 1 element, and the Redis servers
13 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
14 case of MOVED into a DEFER case instead, thus moving the query onto the
15 next server in the list. For a cluster of N elements, all N servers must
16 be defined in redis_servers.
17
459fca58
JH
18JH/01 Replace the store_release() internal interface with store_newblock(),
19 which internalises the check required to safely use the old one, plus
20 the allocate and data copy operations duplicated in both (!) of the
21 extant use locations.
22
944e8b37
JH
23JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
24 modifier. This matches the restriction on the commandline.
25
bbfb5dcd
JH
26JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
27 Previously only the last row was returned.
28
a05d3e34
JH
29JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
30 we assumed that tags in the header were well-formed, and parsed the
31 element content after inspecting only the first char of the tag.
32 Assumptions at that stage could crash the receive process on malformed
33 input.
34
ce93c6d8
JH
35JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
36 While running the DKIM ACL we operate on the Permanent memory pool so that
37 variables created with "set" persist to the DATA ACL. Also (at any time)
38 DNS lookups that fail create cache records using the Permanent pool. But
39 expansions release any allocations made on the current pool - so a dnsdb
40 lookup expansion done in the DKIM ACL releases the memory used for the
41 DNS negative-cache, and bad things result. Solution is to switch to the
42 Main pool for expansions.
43 While we're in that code, add checks on the DNS cache during store_reset,
44 active in the testsuite.
45 Problem spotted, and debugging aided, by Wolfgang Breyha.
46
2577f55f
JH
47JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
48 When none of the hosts presented to a transport match an already-open
49 connection, close it and proceed with the list. Previously we would
50 queue the message. Spotted by Lena with Yahoo, probably involving
51 round-robin DNS.
52
5b6f7658
JH
53JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
54 Previously a spurious "250 OK id=" response was appended to the proper
55 failure response.
56
c11d665d
JH
57JH/08 The "support for" informational output now, which built with Content
58 Scanning support, has a line for the malware scanner interfaces compiled
59 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
60
61JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
62 by the template makefile "src/EDITME". The "STREAM" support for an older
63 ClamAV interface method is removed.
c11d665d 64
ba0e37b1
JH
65JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
66 rows affected is given instead).
67
96508de1
JH
68JH/11 The runtime Berkeley DB library version is now additionally output by
69 "exim -d -bV". Previously only the compile-time version was shown.
70
06fdb9f7
JH
71JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
72 SMTP connection. Previously, when one had more receipients than the
73 first, an abortive onward connection was made. Move to full support for
74 multiple onward connections in sequence, handling cutthrough connection
75 for all multi-message initiating connections.
76
f83a760f
JH
77JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
78 routers. Previously, a multi-recipient message would fail to match the
79 onward-connection opened for the first recipient, and cause its closure.
80
f1fed05b
JH
81JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
82 a timeout on read on a GnuTLS initiating connection, resulting in the
83 initiating connection being dropped. This mattered most when the callout
84 was marked defer_ok. Fix to keep the two timeout-detection methods
85 separate.
86
051d5efa
JH
87JH/15 Relax results from ACL control request to enable cutthrough, in
88 unsupported situations, from error to silently (except under debug)
89 ignoring. This covers use with PRDR, frozen messages, queue-only and
90 fake-reject.
91
cf3cd306
HSHR
92HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
93
744976d4
JH
94JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
95 metadata, resulting in a crash in free().
96
aab9a843 97PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 98 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 99 Broken also in d185889f4, with init system revamp.
7be14582 100
83d2a861
JH
101JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
102 Previously we abruptly closed the connection after reading a malware-
103 found indication; now we go on to read the "scan ok" response line,
104 and send a quit.
105
6741531c
JH
106JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
107 ACL. Previously, a crash would result.
108
85e03244
JH
109JH/19 Speed up macro lookups during configuration file read, by skipping non-
110 macro text after a replacement (previously it was only once per line) and
111 by skipping builtin macros when searching for an uppercase lead character.
112
c0635b6d
JH
113JH/20 DANE support moved from Experimental to mainline. The Makefile control
114 for the build is renamed.
115
b808677c
JH
116JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
117 was allocated for every new TLS startup, meaning one per message. Fix
118 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
119
6678c382
JH
120JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
121 reported the original. Fix to report (as far as possible) the ACL
122 result replacing the original.
123
dec766a1
WB
124JH/23 Fix memory leak during multi-message connections using STARTTLS under
125 OpenSSL. Certificate information is loaded for every new TLS startup,
126 and the resources needed to be freed.
127
15ae19f9
JH
128JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
129
e6532c4a
JH
130JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
131 was not propagated.
132
2556b3c6
SA
133JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
134 DATA response info to the (existing) per-recipient response info for
135 the "C=" log element. It can have useful tracking info from the
136 destination system. Patch from Simon Arlott.
137
fc8cd529
JH
138JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
139 length value. Previously this would segfault.
140
71bb51e0
HSHR
141HS/02 Support Avast multiline protoocol, this allows passing flags to
142 newer versions of the scanner.
143
e04bfa34
JH
144JH/28 Ensure that variables possibly set during message acceptance are marked
145 dead before release of memory in the daemon loop. This stops complaints
146 about them when the debug_store option is enabled. Discovered specifically
147 for sender_rate_period, but applies to a whole set of variables.
4b4856ff 148 Do the same for the queue-runner loop, for variables set from spool
c679ee08
JH
149 message files. Do the same for the SMTP per-message loop, for certain
150 variables indirectly set in ACL operations.
e04bfa34 151
bbfb5dcd 152
acfc18c3
PP
153Exim version 4.90
154-----------------
155
156JH/01 Rework error string handling in TLS interface so that the caller in
157 more cases is responsible for logging. This permits library-sourced
158 string to be attached to addresses during delivery, and collapses
159 pairs of long lines into single ones.
160
856d1e16
PP
161PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
162 during configuration. Wildcards are allowed and expanded.
163
b9df1829
JH
164JH/02 Rework error string handling in DKIM to pass more info back to callers.
165 This permits better logging.
166
875512a3
JH
167JH/03 Rework the transport continued-connection mechanism: when TLS is active,
168 do not close it down and have the child transport start it up again on
169 the passed-on TCP connection. Instead, proxy the child (and any
170 subsequent ones) for TLS via a unix-domain socket channel. Logging is
171 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 172 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 173
fc3f96af
JH
174JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
175 identical IP addresses on different listening ports. Will also affect
176 "exiwhat" output.
177
98913c8e
BK
178PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
179 add noisy ifdef guards to special-case this sillyness.
180 Patch from Bernd Kuhls.
181
8d909960
JH
182JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
183 than 255 are no longer allowed.
184
7006ee24
JH
185JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
186 Disable the session-cache too, which might reduce our load. Since we
187 currrectly use a new context for every connection, both as server and
188 client, there is no benefit for these.
189 GnuTLS appears to not support tickets server-side by default (we don't
190 call gnutls_session_ticket_enable_server()) but client side is enabled
191 by default on recent versions (3.1.3 +) unless the PFS priority string
192 is used (3.2.4 +).
193
6e411084
PP
194PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
195 <https://reproducible-builds.org/specs/source-date-epoch/>.
196
4c2471ca
JH
197JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
198 the check for any unsuccessful recipients did not notice the limit, and
199 erroneously found still-pending ones.
200
4e910c01
JH
201JH/08 Pipeline CHUNKING command and data together, on kernels that support
202 MSG_MORE. Only in-clear (not on TLS connections).
203
42055a33
JH
204JH/09 Avoid using a temporary file during transport using dkim. Unless a
205 transport-filter is involved we can buffer the headers in memory for
206 creating the signature, and read the spool data file once for the
207 signature and again for transmission.
208
eeb35890
JH
209JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
210 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 211 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 212
b7d3afcf
JH
213JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
214 case where the routing stage had gathered several addresses to send to
215 a host before calling the transport for the first, we previously failed
216 to close down TLS in the old transport process before passing the TCP
217 connection to the new process. The new one sent a STARTTLS command
218 which naturally failed, giving a failed delivery and bloating the retry
219 database. Investigation and fix prototype from Wolfgang Breyha.
220
40525d07
JH
221JH/12 Fix check on SMTP command input synchronisation. Previously there were
222 false-negatives in the check that the sender had not preempted a response
223 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 224 awareness of the SMTP input buffering.
40525d07 225
f33875c3
PP
226PP/04 Add commandline_checks_require_admin option.
227 Exim drops privileges sanely, various checks such as -be aren't a
228 security problem, as long as you trust local users with access to their
229 own account. When invoked by services which pass untrusted data to
230 Exim, this might be an issue. Set this option in main configuration
231 AND make fixes to the calling application, such as using `--` to stop
232 processing options.
233
a5ffa9b4
JH
234JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
235 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
236 responses to those, into a single TLS record each way (this usually means
237 a single packet). As a side issue, smtp_enforce_sync now works on TLS
238 connections.
925ac8e4 239
6600985a
PP
240PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
241 affects you only if you're dancing at the edge of the param size limits.
242 If you are, and this message makes sense to you, then: raise the
243 configured limit or use OpenSSL 1.1. Nothing we can do for older
244 versions.
245
ac4d558b
JH
246JH/14 For the "sock" variant of the malware scanner interface, accept an empty
247 cmdline element to get the documented default one. Previously it was
248 inaccessible.
249
e69636bc
JH
250JH/15 Fix a crash in the smtp transport caused when two hosts in succession
251 are unsuable for non-message-specific reasons - eg. connection timeout,
252 banner-time rejection.
253
a843a57e
JH
254JH/16 Fix logging of delivery remote port, when specified by router, under
255 callout/hold.
256
8e041ae0
PP
257PP/06 Repair manualroute's ability to take options in any order, even if one
258 is the name of a transport.
833c70bc
PP
259 Fixes bug 2140.
260
35a04365
HSHR
261HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
262
4226691b
JH
263JH/17 Change the list-building routines interface to use the expanding-string
264 triplet model, for better allocation and copying behaviour.
265
d185889f
JH
266JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
267 Previously it was constructed the first time a possibly-matching string
268 was met in the configuration file input during startup; now it is done
269 during compilation.
270
0a6c178c
JH
271JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
272 compatible one, to avoid the (poorly documented) possibility of a config
273 file in the working directory redirecting the DB files, possibly correpting
02745400 274 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 275
fae8970d
JH
276JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
277 cache-hot. Previously, although the result was properly cached, the
278 initial verify call returned a defer.
279
ad1a76fe 280JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
281 the main verify for receipient in uncached-mode.
282
ad1a76fe
JH
283JH/22 Retire historical build files to an "unsupported" subdir. These are
284 defined as "ones for which we have no current evidence of testing".
285
135e9496
JH
286JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
287 if present. Previously it was ignored.
288
f2ed27cf
JH
289JH/24 Start using specified-initialisers in C structure init coding. This is
290 a C99 feature (it's 2017, so now considered safe).
291
7eb0e5d2
JH
292JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
293 if was a fixed-sized field and bitmask ops via macros; it is now more
294 extensible.
295
4f9f4be4
296PP/07 GitHub PR 56: Apply MariaDB build fix.
297 Patch provided by Jaroslav Škarvada.
298
dc4de9cc
PP
299PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
300 during Coverity cleanups [4.87 JH/47]
301 Diagnosis and fix provided by Michael Fischer v. Mollard.
302
ea18931d
JH
303JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
304 the right size to place the terminating semicolon on its own folded
305 line, the header hash was calculated to an incorrect value thanks to
306 the (relaxed) space the fold became.
307
2cee425a
HSHR
308HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
309 and confused the parent.
310
848214f7
JH
311JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
312 which could crash as a result. This could lead to undeliverable messages.
313
9e0ed81f
JH
314JH/28 Logging: "next input sent too soon" now shows where input was truncated
315 for log purposes.
316
2540f2f8
JH
317JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
318 matters on fast-turnover and PID-randomising systems, which were getting
319 out-of-order delivery.
320
e5ab0ba9
JH
321JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
322 a possibly-overlapping copy. The symptom was that "Remote host closed
323 connection in response to HELO" was logged instead of the actual 4xx
324 error for the HELO.
325
e99a3a6c
JH
326JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
327 Previously only that bufferd was discarded, resulting in SYMTP command
328 desynchronisation.
329
18067c75
JH
330JH/32 DKIM: when a message has multiple signatures matching an identity given
331 in dkim_verify_signers, run the dkim acl once for each. Previously only
332 one run was done. Bug 2189.
333
72934ba7
JH
334JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
335 "panic the current process" to "deliberately defer". The panic log is
336 still written with the problem list name; the mail and reject logs now
337 get a temp-reject line for the message that was being handled, saying
338 something like "domains check lookup or other defer". The SMTP 451
339 message is still "Temporary local problem".
340
625667b6
JH
341JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
342 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
343 freed. CVE-2017-16943.
344
345HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
346 from SMTP input. Previously it was always done; now only done for DATA
347 and not BDAT commands. CVE-2017-16944.
625667b6 348
d21bf202
JH
349JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
350 to the message (such as an overlong header line). Previously this was
351 not done and we did not exit BDAT mode. Followon from the previous item
352 though a different problem.
353
acfc18c3 354
fd047340 355Exim version 4.89
acfc18c3 356-----------------
4c57a40e 357
9427e879 358JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 359 than -2003 did; needs libidn2 in addition to libidn.
fd047340 360
7b283890
JH
361JH/02 The path option on a pipe transport is now expanded before use.
362
4c57a40e
PP
363PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
364 Patch provided by "Björn", documentation fix added too.
365
5d036699
JH
366JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
367 missing a wire-to-host endian conversion.
368
f4630439
JH
369JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
370 close after a BDAT command line could be taken as a following command,
371 giving a synch failure. Fix by only checking for synch immediately
372 before acknowledging the chunk.
373
f988ce57
JS
374PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
375 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
376 macro. Patches provided by Josh Soref.
377
bd8fbe36
JH
378JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
379 Previously we did not; the RFC seems ambiguous and VRFY is not listed
380 by IANA as a service extension. However, John Klensin suggests that we
381 should.
382
383JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
384 the dkim code may be unix-mode line endings rather than smtp wire-format
385 CRLF, so prepend a CR to any bare LF.
fd047340 386
bd8fbe36 387JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
388 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
389
bd8fbe36
JH
390JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
391 the first were themselves being wrongly included in the feed into dkim
392 processing; with most chunk sizes in use this resulted in an incorrect
393 body hash calculated value.
394
eea19017
JH
395JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
396 DKIM signature block, for verification. Although advised against by
397 standards it is specifically not ruled illegal.
398
44e6651b
JH
399JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
400
401JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
402 missing a body hash (the bh= tag).
403
404JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
405 It seems that HAProxy sends the Proxy Protocol information in clear and
406 only then does a TLS startup, so do the same.
407
408JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
409 TCP connections (such as for Spamd) unless the daemon successfully set
410 Fast Open mode on its listening sockets. This fixes breakage seen on
411 too-old kernels or those not configured for Fast Open, at the cost of
412 requiring both directions being enabled for TFO, and TFO never being used
413 by non-daemon-related Exim processes.
414
415JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
416 endings, at least on the first header line. Try to canonify any that get
417 past that check, despite the cost.
418
b6040544
JH
419JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
420 now limited to an arbitrary five deep, while parsing addresses with the
421 strip_excess_angle_brackets option enabled.
422
f700ea4d
PP
423PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
424 instead leave the unprompted TLS handshake in socket buffer for the
425 TLS library to consume.
426
da88acae
PP
427PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
428
f6ef9370
PP
429PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
430
90341c71
JH
431JH/16 Drop variables when they go out of scope. Memory management drops a whole
432 region in one operation, for speed, and this leaves assigned pointers
433 dangling. Add checks run only under the testsuite which checks all
434 variables at a store-reset and panics on a dangling pointer; add code
435 explicitly nulling out all the variables discovered. Fixes one known
436 bug: a transport crash, where a dangling pointer for $sending_ip_address
437 originally assigned in a verify callout, is re-used.
438
1ec2ab36
PP
439PP/06 Drop '.' from @INC in various Perl scripts.
440
441PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
442
443PP/08 Reduce a number of compilation warnings under clang; building with
444 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
445 should be warning-free.
446
8b2b9480
PP
447JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
448
449HS/01 Fix portability problems introduced by PP/08 for platforms where
450 realloc(NULL) is not equivalent to malloc() [SunOS et al].
451
d953610f
HSHR
452HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
453 chunk. This allows us to accept broken chunked messages. We need a more
454 general solution here.
455
7dc5f827
PP
456PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
457 already-broken messages in the queue.
458
4bb432cb
PP
459JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
460
3b1a84c8
PP
461JH/19 Fix reference counting bug in routing-generated-address tracking.
462
902fbd69 463
8d042305
JH
464Exim version 4.88
465-----------------
4c57a40e 466
9094b84b
JH
467JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
468 supports it and a size is available (ie. the sending peer gave us one).
8d042305 469
03d5892b
JH
470JH/02 The obsolete acl condition "demime" is removed (finally, after ten
471 years of being deprecated). The replacements are the ACLs
472 acl_smtp_mime and acl_not_smtp_mime.
473
4b0fe319
JH
474JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
475 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
476 or even an in-clear connection were permitted. Now, if the host lookup
477 was dnssec and dane was requested then the host is only used if the
478 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
479 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
480 if one fails this test.
481 This means that a poorly-configured remote DNS will make it incommunicado;
482 but it protects against a DNS-interception attack on it.
483
789f8a4f
JH
484JH/04 Bug 1810: make continued-use of an open smtp transport connection
485 non-noisy when a race steals the message being considered.
486
23bb6982 487JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 488 self-signed certificate for inbound TLS connections.
23bb6982 489
0bd1b1ed 490JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 491 in rewrites and routers.
0bd1b1ed 492
20b9a2dc
JH
493JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
494 and logged a warning sing 4.83; now they are a configuration file error.
495
05392bbc
JH
496JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
497 (lacking @domain). Apply the same qualification processing as RCPT.
498
1a6230a3
JH
499JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
500
cfab9d68
JH
501JH/10 Support ${sha256:} applied to a string (as well as the previous
502 certificate).
503
98c82a3d
JH
504JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
505 a cutthrough deliver is pending, as we always want to make a connection.
506 This also avoids re-routing the message when later placing the cutthrough
507 connection after a verify cache hit.
508 Do not update it with the verify result either.
509
510JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
511 when routing results in more than one destination address.
512
ae8386f0
JH
513JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
514 signing (which inhibits the cutthrough capability). Previously only
515 the presence of an option was tested; now an expansion evaluating as
516 empty is permissible (obviously it should depend only on data available
517 when the cutthrough connection is made).
518
0d9fa8c0
JH
519JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
520 the relevant preceding SMTP command did not note the pipelining mode.
521
3581f321
JH
522JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
523 Previously they were not counted.
524
ef3a1a30
JH
525JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
526 as one having no matching records. Previously we deferred the message
527 that needed the lookup.
528
4c04137d 529JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
530 distinguished as "(=".
531
1435d4b2
JH
532JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
533 for missing MX records. Previously it only worked for missing A records.
534
eea0defe
JB
535JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
536
537JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
538 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 539
4c04137d 540JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
541 even for a "none" policy. Patch from Tony Meyer.
542
1c788856
JH
543JH/22 Fix continued use of a connection for further deliveries. If a port was
544 specified by a router, it must also match for the delivery to be
545 compatible.
546
e3b1f624
JH
547JH/23 Bug 1874: fix continued use of a connection for further deliveries.
548 When one of the recipients of a message was unsuitable for the connection
549 (has no matching addresses), we lost track of needing to mark it
550 deferred. As a result mail would be lost.
551
a57ce043
JH
552JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
553
f59aaaaa 554JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
555 takes up less space and should be simpler to maintain. Merge the ACL
556 condition decode tables also, with similar effect.
d7bed771 557
d1f9fb42
JH
558JH/26 Fix problem with one_time used on a redirect router which returned the
559 parent address unchanged. A retry would see the parent address marked as
560 delivered, so not attempt the (identical) child. As a result mail would
561 be lost.
562
92b0827a
JH
563JH/27 Fix a possible security hole, wherein a process operating with the Exim
564 UID can gain a root shell. Credit to http://www.halfdog.net/ for
565 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
566 itself :(
567
ddf1b11a
JH
568JH/28 Enable {spool,log} filesystem space and inode checks as default.
569 Main config options check_{log,spool}_{inodes,space} are now
570 100 inodes, 10MB unless set otherwise in the configuration.
571
3cc3f762
JH
572JH/29 Fix the connection_reject log selector to apply to the connect ACL.
573 Previously it only applied to the main-section connection policy
574 options.
575
ae5afa61
JH
576JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
577
317e40ac
PP
578PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
579 by me. Added RFC7919 DH primes as an alternative.
580
8b0fb68e
PP
581PP/02 Unbreak build via pkg-config with new hash support when crypto headers
582 are not in the system include path.
583
ad7fc6eb 584JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 585 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
586 Exim did stdio operations after fclose. This was exposed by a recent
587 change which nulled out the file handle after the fclose.
ad7fc6eb 588
ee5b1e28
JH
589JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
590 signed directly by the cert-signing cert, rather than an intermediate
591 OCSP-signing cert. This is the model used by LetsEncrypt.
592
5ddc9771
JH
593JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
594
8d73599f
JH
595HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
596 an incoming connection.
597
446415f5
HSHR
598HS/02 Bug 1802: Do not half-close the connection after sending a request
599 to rspamd.
600
8e53a4fc
HSHR
601HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
602 fallback to "prime256v1".
8d042305 603
87cb4a16 604JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 605 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
606
607
0d9b78be
JH
608Exim version 4.87
609-----------------
4c57a40e 610
82d14d6a
JH
611JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
612 and 3.4.4 - once the server is enabled to respond to an OCSP request
613 it does even when not requested, resulting in a stapling non-aware
614 client dropping the TLS connection.
0d9b78be 615
6c6d6e48
TF
616TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
617 support variable-length bit vectors. No functional change.
618
ac881e27
TF
619TF/02 Improve the consistency of logging incoming and outgoing interfaces.
620 The I= interface field on outgoing lines is now after the H= remote
621 host field, same as incoming lines. There is a separate
622 outgoing_interface log selector which allows you to disable the
623 outgoing I= field.
624
c8899c20
JH
625JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
626 If not running log_selector +smtp_connection the mainlog would be held
627 open indefinitely after a "too many connections" event, including to a
628 deleted file after a log rotate. Leave the per net connection logging
629 leaving it open for efficiency as that will be quickly detected by the
630 check on the next write.
631
f1b81d81
HSHR
632HS/01 Bug 1671: Fix post transport crash.
633 Processing the wait-<transport> messages could crash the delivery
634 process if the message IDs didn't exist for some reason. When
635 using 'split_spool_directory=yes' the construction of the spool
636 file name failed already, exposing the same netto behaviour.
637
f38917cc
JH
638JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
639 mime_regex ACL conditions.
640
895fbaf2
JH
641JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
642 to DSN fail messages (bounces): remote IP, remote greeting, remote response
643 to HELO, local diagnostic string.
644
805bb5c3
JH
645JH/05 Downgrade message for a TLS-certificate-based authentication fail from
646 log line to debug. Even when configured with a tls authenticator many
647 client connections are expected to not authenticate in this way, so
648 an authenticate fail is not an error.
649
56c2a7be
HSHR
650HS/02 Add the Exim version string to the process info. This way exiwhat
651 gives some more detail about the running daemon.
652
4c04137d 653JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
654 matter for fast-change records such as DNSBLs.
655
6f6dedcc
JH
656JH/07 Bug 1678: Always record an interface option value, if set, as part of a
657 retry record, even if constant. There may be multiple transports with
658 different interface settings and the retry behaviour needs to be kept
659 distinct.
660
0f557e90
JH
661JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
662
663JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
664
ec0eb1a3
JH
665JH/10 Bug 840: fix log_defer_output option of pipe transport
666
41e93589
JH
667JH/11 Bug 830: use same host for all RCPTS of a message, even under
668 hosts_randomize. This matters a lot when combined with mua_wrapper.
669
98b98887 670JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
671 ${quote_pgsql:<string>} operator.
672
98b98887
JH
673JH/13 Bug 1708: avoid misaligned access in cached lookup.
674
858e91c2
JH
675JH/14 Change header file name for freeradius-client. Relevant if compiling
676 with Radius support; from the Gentoo tree and checked under Fedora.
677
678JH/15 Bug 1712: Introduce $prdr_requested flag variable
679
6ff55e50
JH
680JH/16 Bug 1714: Permit an empty string as expansion result for transport
681 option transport_filter, meaning no filtering.
682
3b957582
JB
683JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
684
23f3dc67
JH
685JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
686 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 687 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
688 If a server certificate is not supplied (via tls_certificate) an error is
689 logged, and clients will find TLS connections fail on startup. Presumably
690 they will retry in-clear.
691 Packagers of Exim are strongly encouraged to create a server certificate
692 at installation time.
693
240c288f
JH
694HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
695 with the $config_file variable.
696
5ef5dd52
JB
697JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
698 in transport context, after the attempt, and per-recipient. The latter type
699 is per host attempted. The event data is the error message, and the errno
700 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 701 and the trailing two digits of the smtp 4xx response.
5ef5dd52 702
e161710d
GF
703GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
704 to write to mainlog (or rejectlog, paniclog) in the window between file
705 creation and permissions/ownership being changed. Particularly affects
706 installations where exicyclog is run as root, rather than exim user;
707 result is that the running daemon panics and dies.
708
a159f203
JH
709JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
710
7f06582c
JH
711JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
712 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
713 "pri" and "weight". Note that the previous implicit priority given by the
714 list order is no longer honoured.
715
4c04137d 716JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
717 for DKIM processing.
718
f0989ec0
JH
719JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
720 by defining SUPPORT_SOCKS.
74f150bf 721
cee5f132
JH
722JH/26 Move PROXY support from Experimental to mainline, enabled for a build
723 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
724 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
725 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 726
8c5d388a
JH
727JH/27 Move Internationalisation support from Experimental to mainline, enabled
728 for a build by defining SUPPORT_I18N
729
2d8d625b
JH
730JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
731 of the query string, and make ${quote_redis:} do that quoting.
732
0cbf2b82
JH
733JH/29 Move Events support from Experimental to mainline, enabled by default
734 and removable for a build by defining DISABLE_EVENT.
735
f2f2c91b
JH
736JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
737
ce325893
JH
738JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
739 cached by the daemon.
740
de78e2d5
JH
741JH/32 Move Redis support from Experimental to mainline, enabled for a build
742 by defining LOOKUP_REDIS. The libhiredis library is required.
743
379ba7d0
JH
744JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
745 keys are given for lookup.
746
f444c2c7
JH
747JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
748 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
749 only supported when built with TLS support. The PolarSSL SHA routines
750 are still used when the TLS library is too old for convenient support.
f444c2c7 751
a57b6200
JH
752JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
753 openssl_options), for security. OpenSSL forces this from version 1.1.0
754 server-side so match that on older versions.
755
07c73177 756JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 757 allocation for $value could be released as the expansion processing
07c73177 758 concluded, but leaving the global pointer active for it.
fa01e4f8 759
4f6ae5c3
JH
760JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
761 and to use the domains and local_parts ACL conditions.
762
1bc460a6
JH
763JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
764 incorrectly not doubled on cutthrough transmission, hence seen as a
765 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 766 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
767 via the normal store-and-forward channel. This could result in duplicates
768 received - but deduplicating mailstores were liable to retain only the
769 initial truncated version.
770
ab9152ff 771JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 772
67e87fcf
JH
773JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
774
ab9152ff
JH
775JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
776 we're in there, support oversigning also; bug 1309.
777
af483912
JH
778JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
779
bc3c7bb7 780HS/04 Add support for keep_environment and add_environment options.
df3def24 781
13559da6
JH
782JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
783 either intentional arithmetic overflow during PRNG, or testing config-
784 induced overflows.
785
59eaad2b
JH
786JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
787 delivery resulted in actual delivery. Cancel cutthrough before DATA
788 stage.
789
f9334a28
JH
790JH/45 Fix cutthrough, when connection not opened by verify and target hard-
791 rejects a recipient: pass the reject to the originator.
792
dc8091e7
JH
793JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
794 Many were false-positives and ignorable, but it's worth fixing the
795 former class.
796
dfe7d917
JH
797JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
798 for the new environment-manipulation done at startup. Move the routines
799 from being local to tls.c to being global via the os.c file.
800
93cc2d6e
JH
801JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
802 an extract embedded as result-arg for a map, the first arg for extract
803 is unavailable so we cannot tell if this is a numbered or keyed
804 extraction. Accept either.
805
13559da6 806
9c695f6d
JH
807Exim version 4.86
808-----------------
4c57a40e 809
9c695f6d
JH
810JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
811 expanded.
812
506900af
JH
813JH/02 The smtp transport option "multi_domain" is now expanded.
814
ad07e9ad
JH
815JH/03 The smtp transport now requests PRDR by default, if the server offers
816 it.
817
01a4a5c5 818JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 819 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
820 can be used to disable this per-host. The build option
821 EXPERIMENTAL_CERTNAMES is withdrawn.
822
cb1d7830 823JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 824 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
825 For GnuTLS, only version 3.0.20 or later.
826
610ff438 827JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
828 (but not required) by default. The verification status is now logged by
829 default, for both outbound TLS and client-certificate supplying inbound
830 TLS connections
610ff438 831
f926e272
JH
832JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
833 sites use this now.
834
50dc7409
JH
835JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
836 Status Notification (bounce) messages are now MIME format per RFC 3464.
837 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
838 under the control of the dsn_advertise_hosts option, and routers may
839 have a dsn_lasthop option.
840
0f0c8159
JH
841JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
842 default, modifiable by a malware= option. The list separator for
23763898 843 the options can now be changed in the usual way. Bug 68.
4e71661f 844
1ad6489e
JH
845JH/10 The smtp_receive_timeout main option is now expanded before use.
846
aeaf5db3
JH
847JH/11 The incoming_interface log option now also enables logging of the
848 local interface on delivery outgoing connections.
849
5032d1cf
JH
850JH/12 The cutthrough-routing facility now supports multi-recipient mails,
851 if the interface and destination host and port all match.
852
7e8360e6
JH
853JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
854 /defer_ok option.
855
c5f280e2
AL
856JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
857 Patch from Andrew Lewis.
858
fd4d8871 859JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 860 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
861 modifiers per server. Patch originally by <rommer@active.by>.
862
863JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
864 and remote servers. Remote servers can be IPv6 addresses, and
865 specify a port-range.
fd4d8871 866
23763898
JH
867JH/17 Bug 68: The spamd_address main option now supports an optional
868 timeout value per server.
869
2ad78978
JH
870JH/18 Bug 1581: Router and transport options headers_add/remove can
871 now have the list separator specified.
872
8a512ed5 873JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 874 option values.
8a512ed5 875
82c0c8ea 876JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
877 under OpenSSL.
878
cc00f4af
JH
879JH/21 Support for the A6 type of dns record is withdrawn.
880
82c0c8ea
JH
881JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
882 rather than the verbs used.
883
b980ed83
JH
884JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
885 from 255 to 1024 chars.
886
6c9ed72e
JH
887JH/24 Verification callouts now attempt to use TLS by default.
888
cfab9d68 889HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 890 are generic router options now. The defaults didn't change.
50dc7409 891
f846c8f5
JH
892JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
893 Original patch from Alexander Shikoff, worked over by JH.
894
fd4c285c
HSHR
895HS/02 Bug 1575: exigrep falls back to autodetection of compressed
896 files if ZCAT_COMMAND is not executable.
897
4c04137d 898JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 899
d2a2c69b
JH
900JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
901
8241d8dd
JH
902JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
903 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 904 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
905 (and we were inconsistent anyway for A-only vs AAAA+A).
906
1f12df4d
JH
907JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
908
1f155f8e
JH
909JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
910 when evaluating $sender_host_dnssec.
911
1705dd20
JH
912JH/31 Check the HELO verification lookup for DNSSEC, adding new
913 $sender_helo_dnssec variable.
914
038597d2
PP
915JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
916
474f71bf
JH
917JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
918
7137ca4b
JH
919JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
920
dcb1095c
JH
921JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
922 documented as working, but never had. Support all but $spam_report.
923
2f460950
JH
924JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
925 added for tls authenticator.
926
2f680c0c
HSHR
927HS/03 Add perl_taintmode main config option
928
9c695f6d 929
e449c3b0
TL
930Exim version 4.85
931-----------------
4c57a40e 932
e449c3b0
TL
933TL/01 When running the test suite, the README says that variables such as
934 no_msglog_check are global and can be placed anywhere in a specific
935 test's script, however it was observed that placement needed to be near
936 the beginning for it to behave that way. Changed the runtest perl
937 script to read through the entire script once to detect and set these
938 variables, reset to the beginning of the script, and then run through
939 the script parsing/test process like normal.
940
ac20058f
TL
941TL/02 The BSD's have an arc4random API. One of the functions to induce
942 adding randomness was arc4random_stir(), but it has been removed in
943 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
944 function when detected.
945
a9b8ec8b
JH
946JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
947 cause callback expansion.
948
6286d7c4
TL
949TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
950 syntax errors in an expansion can be treated as a string instead of
951 logging or causing an error, due to the internal use of bool_lax
952 instead of bool when processing it.
953
0f06b4f2 954JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
955 server certificates when making smtp deliveries.
956
be36e572
JH
957JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
958
ac4ef9bd
JH
959JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
960
0eb51736
TL
961TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
962
c713ca4b
TL
963TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
964 Merged patch from Sebastian Wiedenroth.
e449c3b0 965
bd21a787
WB
966JH/05 Fix results-pipe from transport process. Several recipients, combined
967 with certificate use, exposed issues where response data items split
968 over buffer boundaries were not parsed properly. This eventually
969 resulted in duplicates being sent. This issue only became common enough
4c04137d 970 to notice due to the introduction of connection certificate information,
bd21a787
WB
971 the item size being so much larger. Found and fixed by Wolfgang Breyha.
972
8bc732e8
JH
973JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
974 size buffer was used, resulting in syntax errors when an expansion
975 exceeded it.
976
a7fec7a7
JH
977JH/07 Add support for directories of certificates when compiled with a GnuTLS
978 version 3.3.6 or later.
979
4c04137d 980JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
981 is EXPERIMENTAL_EVENT, the main-configuration and transport options
982 both become "event_action", the variables become $event_name, $event_data
aec45841 983 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
984 routers, transports and related events. The tls:cert event is now also
985 raised for inbound connections, if the main configuration event_action
986 option is defined.
774ef2d7 987
eca4debb
TL
988TL/06 In test suite, disable OCSP for old versions of openssl which contained
989 early OCSP support, but no stapling (appears to be less than 1.0.0).
990
8d692470
JH
991JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
992 server certificate names available under the smtp transport option
993 "tls_verify_cert_hostname" now do not permit multi-component wildcard
994 matches.
995
e9477a08
JH
996JH/10 Time-related extraction expansions from certificates now use the main
997 option "timezone" setting for output formatting, and are consistent
998 between OpenSSL and GnuTLS compilations. Bug 1541.
999
ad4c5ff9
JH
1000JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1001 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1002
1003JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1004 include certificate info, eximon was claiming there were spoolfile
1005 syntax errors.
1006
3394b36a 1007JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1008
1009JH/14 Log delivery-related information more consistently, using the sequence
1010 "H=<name> [<ip>]" wherever possible.
1011
3394b36a
TL
1012TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1013 are problematic for Debian distribution, omit them from the release
1014 tarball.
1015
ad4c5ff9
JH
1016JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1017
4c04137d 1018JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1019 Bug 1561.
1020
1021JH/17 Fix a null-indirection in certextract expansions when a nondefault
1022 output list separator was used.
1023
8bc732e8 1024
1f0ebb98
TL
1025Exim version 4.84
1026-----------------
09728d20
TL
1027TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1028 checkers that were complaining about end of non-void function with no
1029 return.
1f0ebb98 1030
a612424f 1031JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1032 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1033
1034JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1035
1036TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1037 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1038
1f0ebb98 1039
c0e56233
TF
1040Exim version 4.83
1041-----------------
1042
1043TF/01 Correctly close the server side of TLS when forking for delivery.
1044
1045 When a message was received over SMTP with TLS, Exim failed to clear up
1046 the incoming connection properly after forking off the child process to
1047 deliver the message. In some situations the subsequent outgoing
1048 delivery connection happened to have the same fd number as the incoming
1049 connection previously had. Exim would try to use TLS and fail, logging
1050 a "Bad file descriptor" error.
1051
7245734e
TF
1052TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1053 utilities have not been installed.
1054
fd5dad68
JH
1055JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1056 temporary space as the ACL may create new global variables.
1057
5428a946
TL
1058TL/01 LDAP support uses per connection or global context settings, depending
1059 upon the detected version of the libraries at build time.
1060
a3c86431
TL
1061TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1062 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1063 were a direct connection from the outside internet. PPv2 support was
1064 updated based on HAProxy spec change in May 2014.
a3c86431 1065
aa26e137
JH
1066JH/02 Add ${listextract {number}{list}{success}{fail}}.
1067
5a1b8443
WB
1068TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1069 Properly escape header and check for NULL return.
1070
72c9e342
PP
1071PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1072 not dns_use_dnssec.
1073
76f44207
WB
1074JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1075
770747fd
MFM
1076TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1077 characters in header names, implemented as a verify condition.
1078 Contributed by Michael Fischer v. Mollard.
1079
8ddef691 1080TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1081 results permerror and temperror. Previous values are deprecated but
1082 still accepted. In a future release, err_perm and err_temp will be
1083 completely removed, which will be a backward incompatibility if the
1084 ACL tests for either of these two old results. Patch contributed by
8ddef691 1085 user bes-internal on the mailing list.
c0e56233 1086
b9c2e32f
AR
1087JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1088
e45a1c37
JH
1089JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1090 selectors, in both main and reject logs.
1091
67d81c10
JH
1092JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1093 failed delivery.
1094
b1f8e4f8
JH
1095JH/07 Add malware type "sock" for talking to simple daemon.
1096
511a6c14 1097JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1098
1099JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1100 routers/transports under cutthrough routing.
214042d2 1101
51c7471d
JH
1102JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1103 numbers. Touch up "bool" conditional to keep the same definition.
1104
3695be34
TL
1105TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1106
1e06383a
TL
1107JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1108
76146973
JH
1109JH/12 Expand items in router/transport headers_add or headers_remove lists
1110 individually rather than the list as a whole. Bug 1452.
1111
1112 Required for reasonable handling of multiple headers_ options when
1113 they may be empty; requires that headers_remove items with embedded
1114 colons must have them doubled (or the list-separator changed).
1115
8c8b8274
TL
1116TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1117 view the policy declared in the DMARC record. Currently, $dmarc_status
1118 is a combined value of both the record presence and the result of the
1119 analysis.
b1f8e4f8 1120
35aba663
JH
1121JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1122
8c51eead 1123JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1124 dnslookup router and the smtp transport (applying to the forward
1125 lookup).
8c51eead 1126
deae092e
HS
1127TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1128 of ldap servers used for a specific lookup. Patch provided by Heiko
1129 Schlichting.
35aba663 1130
fd3b6a4a 1131JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1132 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1133
8d91c6dc
LT
1134TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1135 Patch submitted by Lars Timman.
1136
2b4a568d
JH
1137JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1138
d2af03f4
HS
1139TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1140 Requires trusted mode and valid format message id, aborts otherwise.
1141 Patch contributed by Heiko Schlichting.
1142
9d1c15ef
JH
1143JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1144 certextract with support for various fields. Bug 1358.
1145
44662487
JH
1146JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1147 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1148 hosts_request_ocsp.
1149
ed3bba5f 1150JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1151 operate on certificate variables to give certificate fingerprints
9ef9101c 1152 Also new ${sha256:cert_variable}.
44662487 1153
8ccd00b1
JH
1154JH/23 The PRDR feature is moved from being Experimental into the mainline.
1155
8ded8589
TL
1156TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1157 Christian Aistleitner.
1158
f2de3a33
JH
1159JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1160
6eb02f88
TL
1161TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1162 file. Patch from Wolfgang Breyha.
1163
00bff6f6
JH
1164JH/25 Expand the coverage of the delivery $host and $host_address to
1165 client authenticators run in verify callout. Bug 1476.
1166
071c51f7
JH
1167JH/26 Port service names are now accepted for tls_on_connect_ports, to
1168 align with daemon_smtp_ports. Bug 72.
1169
a6d4c44e
TF
1170TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1171 support and error reporting did not work properly.
1172
3ae173e7
ACK
1173TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1174 and is readable. Patch from Andrew Colin Kissa.
1175
c13d09b8
TL
1176TL/14 Enhance documentation of ${run expansion and how it parses the
1177 commandline after expansion, particularly in the case when an
1178 unquoted variable expansion results in an empty value.
1179
0df4ab80
JH
1180JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1181
66be95e0
PP
1182PP/02 Fix internal collision of T_APL on systems which support RFC3123
1183 by renaming away from it. Addresses GH issue 15, reported by
1184 Jasper Wallace.
1185
1bd0d12b
JH
1186JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1187
0de7239e
TL
1188TL/15 SECURITY: prevent double expansion in math comparison functions
1189 (can expand unsanitized data). Not remotely exploitable.
1190 CVE-2014-2972
1191
fd3b6a4a 1192
2c422e6f 1193Exim version 4.82
98a90c36
PP
1194-----------------
1195
1196PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1197
12f69989
PP
1198PP/02 Make -n do something, by making it not do something.
1199 When combined with -bP, the name of an option is not output.
1200
54c90be1
PP
1201PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1202 by GnuTLS.
1203
1f4a55da
PP
1204PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1205 $sender_host_name and config options to manage this, and basic check
1206 routines.
1207
13363eba 1208PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1209
66645890 1210PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1211 (Only plugin which currently uses this is kerberos4, which nobody should
1212 be using, but we should make it available and other future plugins might
1213 conceivably use it, even though it would break NAT; stuff *should* be
1214 using channel bindings instead).
66645890 1215
a3fb9793 1216PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1217 name; added for Sendmail compatibility; requires admin caller.
1218 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1219 just ignore it); requires trusted caller.
a3fb9793 1220 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1221 Bugzilla 1117.
a3fb9793 1222
d27f98fe 1223TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1224
6822b909
TL
1225TL/02 Add +smtp_confirmation as a default logging option.
1226
e7568d51
TL
1227TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1228 Patch by Magnus Holmgren from 2007-02-20.
1229
ae0e32ee 1230TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1231 Bugzilla 1283 - Spec typo.
97f42f10 1232 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1233
1234TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1235
e2658fff
TL
1236TL/06 Add Experimental DMARC support using libopendmarc libraries.
1237
83712b39
TL
1238TL/07 Fix an out of order global option causing a segfault. Reported to dev
1239 mailing list by by Dmitry Isaikin.
1240
976b7e9f
JH
1241JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1242
be4a1376
JH
1243JH/02 Support "G" suffix to numbers in ${if comparisons.
1244
ec4b68e5
PP
1245PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1246
d7148a07
NM
1247NM/01 Bugzilla 1197 - Spec typo
1248 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1249
585121e2 1250JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1251
2519e60d
TL
1252PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1253 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1254 function.
a5f239e4 1255
13d08c90
PP
1256PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1257 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1258
bef3ea7f
JH
1259JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1260 "acl {{name}{arg}...}", and optional args on acl condition
1261 "acl = name arg..."
a5f239e4 1262
846726c5
JH
1263JH/05 Permit multiple router/transport headers_add/remove lines.
1264
3a796370
JH
1265JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1266
ea722490 1267JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1268 Performance patch from Paul Fisher. Bugzilla 1262.
1269
b1b05573
JH
1270JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1271 Bugzilla 884.
1272
362145b5
JH
1273JH/09 Add $headers_added variable, with content from use of ACL modifier
1274 add_header (but not yet added to the message). Bugzilla 199.
1275
3c0a92dc
JH
1276JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1277 Pulled from Bugzilla 817 by Wolfgang Breyha.
1278
6d7c6175
PP
1279PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1280 CVE-2012-5671
e78e6ecf 1281 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1282
6f123593
JH
1283JH/11 Add A= logging on delivery lines, and a client_set_id option on
1284 authenticators.
1285
c8e2fc1e
JH
1286JH/12 Add optional authenticated_sender logging to A= and a log_selector
1287 for control.
1288
005ac57f
PP
1289PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1290
3f1df0e3
PP
1291PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1292 advertise SMTP AUTH mechanism to us, instead of a generic
1293 protocol violation error. Also, make Exim more robust to bad
1294 data from the Dovecot auth socket.
1295
67bd1ab3
TF
1296TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1297
1298 When a queue runner is handling a message, Exim first routes the
1299 recipient addresses, during which it prunes them based on the retry
1300 hints database. After that it attempts to deliver the message to
1301 any remaining recipients. It then updates the hints database using
1302 the retry rules.
1303
1304 So if a recipient address works intermittently, it can get repeatedly
1305 deferred at routing time. The retry hints record remains fresh so the
1306 address never reaches the final cutoff time.
1307
1308 This is a fairly common occurrence when a user is bumping up against
1309 their storage quota. Exim had some logic in its local delivery code
1310 to deal with this. However it did not apply to per-recipient defers
1311 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1312
1ddeb334
TF
1313 This change adds a proper retry rule check during routing so that the
1314 final cutoff time is checked against the message's age. We only do
1315 this check if there is an address retry record and there is not a
1316 domain retry record; this implies that previous attempts to handle
1317 the address had the retry_use_local_parts option turned on. We use
1318 this as an approximation for the destination being like a local
1319 delivery, as in LMTP.
67bd1ab3
TF
1320
1321 I suspect this new check makes the old local delivery cutoff check
1322 redundant, but I have not verified this so I left the code in place.
1323
326cdc37
TF
1324TF/02 Correct gecos expansion when From: is a prefix of the username.
1325
1326 Test 0254 submits a message to Exim with the header
1327
1328 Resent-From: f
1329
1330 When I ran the test suite under the user fanf2, Exim expanded
1331 the header to contain my full name, whereas it should have added
1332 a Resent-Sender: header. It erroneously treats any prefix of the
1333 username as equal to the username.
1334
1335 This change corrects that bug.
1336
f62514b3
GF
1337GF/01 DCC debug and logging tidyup
1338 Error conditions log to paniclog rather than rejectlog.
1339 Debug lines prefixed by "DCC: " to remove any ambiguity.
1340
eb505532
TF
1341TF/03 Avoid unnecessary rebuilds of lookup-related code.
1342
14c7b357
PP
1343PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1344 Bug spotted by Jeremy Harris; was flawed since initial commit.
1345 Would have resulted in OCSP responses post-SNI triggering an Exim
1346 NULL dereference and crash.
1347
94eaf700
PP
1348JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1349
6f5a440a
PP
1350PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1351 Bug detection, analysis and fix by Samuel Thibault.
1352 Bugzilla 1331, Debian bug #698092.
1353
514ee161
SC
1354SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1355
fd98a5c6
JH
1356JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1357 Server implementation by Todd Lyons, client by JH.
1358 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1359 config variable "prdr_enable" controls whether the server
1360 advertises the facility. If the client requests PRDR a new
1361 acl_data_smtp_prdr ACL is called once for each recipient, after
1362 the body content is received and before the acl_smtp_data ACL.
4c04137d 1363 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1364 on the smtp transport, and the server advertisement.
1365 Default client logging of deliveries and rejections involving
1366 PRDR are flagged with the string "PRDR".
1367
035c7f1e
PP
1368PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1369 fclose(). Diagnosis by Todd Lyons.
1370
ff284120
PP
1371PP/17 Update configure.default to handle IPv6 localhost better.
1372 Patch by Alain Williams (plus minor tweaks).
1373 Bugzilla 880.
1374
26e72755
PP
1375PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1376 This is now consistent with GnuTLS, and is now documented: the
1377 previous undocumented portable approach to treating the option as
1378 unset was to force an expansion failure. That still works, and
1379 an empty string is now equivalent.
1380
0fbd9bff
PP
1381PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1382 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1383 not performing validation itself.
1384
700d22f3
PP
1385PP/20 Added force_command boolean option to pipe transport.
1386 Patch from Nick Koston, of cPanel Inc.
1387
fcc8e047
JH
1388JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1389 Bugzilla 321, 823.
1390
4c04137d 1391TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1392
8c020188
PP
1393PP/21 Fix eximon continuous updating with timestamped log-files.
1394 Broken in a format-string cleanup in 4.80, missed when I repaired the
1395 other false fix of the same issue.
1396 Report and fix from Heiko Schlichting.
1397 Bugzilla 1363.
1398
d13cdd30
PP
1399PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1400 Report from Prashanth Katuri.
1401
e2fbf4a2
PP
1402PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1403 It's SecureTransport, so affects any MacOS clients which use the
1404 system-integrated TLS libraries, including email clients.
1405
f4c1088b
PP
1406PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1407 using a MIME ACL for non-SMTP local injection.
1408 Report and assistance in diagnosis by Warren Baker.
1409
c5c2182f
PP
1410TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1411
73431ca9
JH
1412JH/16 Fix comparisons for 64b. Bugzilla 1385.
1413
2d07a215
TL
1414TL/09 Add expansion variable $authenticated_fail_id to keep track of
1415 last id that failed so it may be referenced in subsequent ACL's.
1416
a30a8861
TL
1417TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1418 Alexander Miroch.
1419
33382dd9
TL
1420TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1421 ldap library initialization, allowing self-signed CA's to be
1422 used. Also properly sets require_cert option later in code by
1423 using NULL (global ldap config) instead of ldap handle (per
1424 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1425
046172e6
TL
1426TL/12 Enhanced documentation in the ratelimit.pl script provided in
1427 the src/util/ subdirectory.
1428
581d7bee 1429TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1430 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1431 EXPERIMENTAL_TPDA.
1432
1433TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1434 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1435 redis_servers = needs to be configured which will be used by the redis
1436 lookup. Patch from Warren Baker, of The Packet Hub.
1437
237b2cf2
TL
1438TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1439
9fc5a352
TL
1440TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1441 hostname or reverse DNS when processing a host list. Used suggestions
1442 from multiple comments on this bug.
1a7b746d 1443
b10e4ec2
TL
1444TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1445
e2cebd74
TL
1446TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1447 Missed a few lines, added it to make the runtest require no keyboard
1448 interaction.
1449
1450TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1451 contains upper case chars. Make router use caseful_local_part.
1452
2519e60d
TL
1453TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1454 support when GnuTLS has been built with p11-kit.
1455
e78e6ecf 1456
4263f395
PP
1457Exim version 4.80.1
1458-------------------
1459
1460PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1461 CVE-2012-5671
2c422e6f 1462 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1463
ea722490 1464
b1770b6e 1465Exim version 4.80
0599f9cf
PP
1466-----------------
1467
1468PP/01 Handle short writes when writing local log-files.
1469 In practice, only affects FreeBSD (8 onwards).
1470 Bugzilla 1053, with thanks to Dmitry Isaikin.
1471
23c7e742
NM
1472NM/01 Bugzilla 949 - Documentation tweak
1473
b322aac8
NM
1474NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1475 improved.
1476
4a891427
NM
1477NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1478
c1e794ba 1479PP/02 Implemented gsasl authenticator.
b322aac8 1480
97753960
PP
1481PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1482
1483PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1484 `pkg-config foo` for cflags/libs.
1485
df6303fa
PP
1486PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1487 with rest of GSASL and with heimdal_gssapi.
1488
7e6a8985
PP
1489PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1490 `pkg-config foo` for cflags/libs for the TLS implementation.
1491
f1e05cc7 1492PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1493 properties get this fed in as external SSF. A number of robustness
1494 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1495
4c287009
PP
1496PP/08 cyrus_sasl server now expands the server_realm option.
1497
b98bb9ac
PP
1498PP/09 Bugzilla 1214 - Log authentication information in reject log.
1499 Patch by Jeremy Harris.
1500
4a6a987a
PP
1501PP/10 Added dbmjz lookup type.
1502
c45dd180 1503PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1504
7db8d074
PP
1505PP/12 MAIL args handles TAB as well as SP, for better interop with
1506 non-compliant senders.
1507 Analysis and variant patch by Todd Lyons.
1508
eae0036b 1509NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1510 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1511 Patch from Dirk Mueller <dmueller@suse.com>
1512
dec5017e
PP
1513PP/13 tls_peerdn now print-escaped for spool files.
1514 Observed some $tls_peerdn in wild which contained \n, which resulted
1515 in spool file corruption.
1516
c80c5570
PP
1517PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1518 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1519 or write after TLS renegotiation, which otherwise led to messages
1520 "Got SSL error 2".
1521
076b11e2
PP
1522TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1523 as a tracking header (ie: a signed header comes before the signature).
1524 Patch from Wolfgang Breyha.
1525
5407bfff
JH
1526JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1527 comma-sep list; embedded commas doubled.
1528
9e45c72b
PP
1529JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1530
e74376d8
PP
1531PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1532 diagnostics.
1533 Report and patch from Dmitry Banschikov.
1534
4c04137d 1535PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1536 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1537 failures. We appear to now support TLS1.1+ with Exim.
1538
7be682ca
PP
1539PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1540 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1541 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1542 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1543
ef840681
PP
1544PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1545 NULL dereference. Report and patch from Alun Jones.
1546
5bfb4cdf
PP
1547PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1548 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1549 Not seeing resolver debug output on NetBSD, but suspect this is a
1550 resolver implementation change.
1551
c6e95d22
PP
1552PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1553 Left warnings. Added "eximon gdb" invocation mode.
1554
9cbad13b
PP
1555PP/21 Defaulting "accept_8bitmime" to true, not false.
1556
9ee44efb
PP
1557PP/22 Added -bw for inetd wait mode support.
1558
6a6084f8
PP
1559PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1560 locate the relevant includes and libraries. Made this the default.
1561
12dd53c7
PP
1562PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1563 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1564
9e45c72b 1565JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1566 This may cause build issues on older platforms.
1567
17c76198
PP
1568PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1569 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1570 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1571 Added SNI support via GnuTLS too.
af3498d6 1572 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1573
53947857 1574PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1575
eae0036b 1576PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1577 Applied second patch from Janne, implementing suggestion to default
1578 multiple-strings-in-record handling to match SPF spec.
eae0036b 1579
9e45c72b 1580JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1581
7390e768
PP
1582PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1583 read-only, out of scope).
1584 Patch from Wolfgang Breyha, report from Stuart Northfield.
1585
08488c86
PP
1586PP/29 Fix three issues highlighted by clang analyser static analysis.
1587 Only crash-plausible issue would require the Cambridge-specific
1588 iplookup router and a misconfiguration.
1589 Report from Marcin Mirosław.
1590
6475bd82
PP
1591PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1592
81f91683
PP
1593PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1594 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1595 As part of this, removing so much warning spew let me fix some minor
1596 real issues in debug logging.
1597
5779e6aa
PP
1598PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1599 assignment on my part. Fixed.
1600
3375e053
PP
1601PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1602 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1603 Janne Snabb (who went above and beyond: thank you).
1604
1605PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1606 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1607 relatively easy to get wrong. Should also expose TLS library linkage
1608 problems.
3375e053 1609
9d26b8c0
PP
1610PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1611 64-bit ${eval} (JH/03).
1612
57eb9e91 1613PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1614 GNU libc to support some of the 64-bit stuff, should not lead to
1615 conflicts. Defined before os.h is pulled in, so if a given platform
1616 needs to override this, it can.
1617
16880d1a
PP
1618PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1619 protection layer was required, which is not implemented.
1620 Bugzilla 1254, patch from Wolfgang Breyha.
1621
a799883d
PP
1622PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1623 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1624 tls_dhparam take prime identifiers. Also unbreak combination of
1625 OpenSSL+DH_params+TLSSNI.
1626
3ecab157 1627PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1628
0599f9cf 1629
867fcbf5
PP
1630Exim version 4.77
1631-----------------
1632
1633PP/01 Solaris build fix for Oracle's LDAP libraries.
1634 Bugzilla 1109, patch from Stephen Usher.
1635
f1a29782
TF
1636TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1637
ab42bd23
TK
1638TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1639 whitespace trailer
867fcbf5 1640
0ca0cf52
TF
1641TF/02 Fix a couple more cases where we did not log the error message
1642 when unlink() failed. See also change 4.74-TF/03.
1643
921b12ca
TF
1644TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1645 lock up or crash if it happened to be inside a call to libc when it
1646 got a SIGUSR1 from exiwhat.
1647
1648 The SIGUSR1 handler appends the current process status to the process
1649 log which is later printed by exiwhat. It used to use the general
1650 purpose logging code to do this, but several functions it calls are
1651 not safe for signals.
1652
1653 The new output code in the SIGUSR1 handler is specific to the process
1654 log, and simple enough that it's easy to inspect for signal safety.
1655 Removing some special cases also simplifies the general logging code.
1656 Removing the spurious timestamps from the process log simplifies
1657 exiwhat.
1658
c99ce5c9
TF
1659TF/04 Improved ratelimit ACL condition.
1660
1661 The /noupdate option has been deprecated in favour of /readonly which
1662 has clearer semantics. The /leaky, /strict, and /readonly update modes
1663 are mutually exclusive. The update mode is no longer included in the
1664 database key; it just determines when the database is updated. (This
4c04137d 1665 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1666
1667 Exim now checks that the per_* options are used with an update mode that
1668 makes sense for the current ACL. For example, when Exim is processing a
1669 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1670 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1671 must specify per_mail/readonly. If you omit the update mode it defaults to
1672 /leaky where that makes sense (as before) or /readonly where required.
1673
1674 The /noupdate option is now undocumented but still supported for
1675 backwards compatibility. It is equivalent to /readonly except that in
1676 ACLs where /readonly is required you may specify /leaky/noupdate or
1677 /strict/noupdate which are treated the same as /readonly.
1678
1679 A useful new feature is the /count= option. This is a generalization
1680 of the per_byte option, so that you can measure the throughput of other
1681 aggregate values. For example, the per_byte option is now equivalent
1682 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1683
1684 The per_rcpt option has been generalized using the /count= mechanism
1685 (though it's more complicated than the per_byte equivalence). When it is
1686 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1687 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1688 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1689 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1690 Note that using per_rcpt with a non-readonly update mode in more than
1691 one ACL will cause the recipients to be double-counted. (The per_mail
1692 and per_byte options don't have this problem.)
1693
1694 The handling of very low rates has changed slightly. If the computed rate
1695 is less than the event's count (usually one) then this event is the first
1696 after a long gap. In this case the rate is set to the same as this event's
1697 count, so that the first message of a spam run is counted properly.
1698
1699 The major new feature is a mechanism for counting the rate of unique
1700 events. The new per_addr option counts the number of different
1701 recipients that someone has sent messages to in the last time period. It
1702 behaves like per_rcpt if all the recipient addresses are different, but
1703 duplicate recipient addresses do not increase the measured rate. Like
1704 the /count= option this is a general mechanism, so the per_addr option
1705 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1706 example, measure the rate that a client uses different sender addresses
1707 with the options per_mail/unique=$sender_address. There are further
1708 details in the main documentation.
1709
3634fc25
TF
1710TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1711
792e8a19
TF
1712TF/06 Removed a few PCRE remnants.
1713
5901f0ab
TF
1714TF/07 Automatically extract Exim's version number from tags in the git
1715 repository when doing development or release builds.
1716
7f2a2a43
PP
1717PP/02 Raise smtp_cmd_buffer_size to 16kB.
1718 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1719
061b7ebd
PP
1720PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1721 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1722 Bugzilla 97.
1723
e12f8c32
PP
1724PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1725
9e949f00 1726PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1727 Bugzilla 1078. Patch from John Horne.
1728
1729PP/06 Stop make process more reliably on build failure.
1730 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1731
555ae6af 1732PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1733 Bugzilla 1089. Patch from Heiko Schlittermann.
1734
1735PP/08 Handle ${run} returning more data than OS pipe buffer size.
1736 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1737
6f7fe114
PP
1738PP/09 Handle IPv6 addresses with SPF.
1739 Bugzilla 860. Patch from Wolfgang Breyha.
1740
c566dd90
PP
1741PP/10 GnuTLS: support TLS 1.2 & 1.1.
1742 Bugzilla 1156.
89f897c3
PP
1743 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1744 Bugzilla 1095.
c566dd90 1745
d6cc7c78 1746PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1747 New compile-time build option, EXPAND_LISTMATCH_RHS.
1748 New expansion conditions, "inlist", "inlisti".
1749
0d0e4455
PP
1750PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1751
3399bb60 1752PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1753
1754PP/14 fix log_write() format string regression from TF/03.
1755 Bugzilla 1152. Patch from Dmitry Isaikin.
1756
0ca0cf52 1757
10906672
PP
1758Exim version 4.76
1759-----------------
1760
1761PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1762
754a0503
PP
1763PP/02 Harmonised TLS library version reporting; only show if debugging.
1764 Layout now matches that introduced for other libraries in 4.74 PP/03.
1765
c0c7b2da
PP
1766PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1767
e97d1f08
PP
1768PP/04 New "dns_use_edns0" global option.
1769
084c1d8c
PP
1770PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1771 Bugzilla 1098.
1772
4e7ee012
PP
1773PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1774 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1775
c8d52a00
PP
1776TK/01 Updated PolarSSL code to 0.14.2.
1777 Bugzilla 1097. Patch from Andreas Metzler.
1778
54e7ce4a
PP
1779PP/07 Catch divide-by-zero in ${eval:...}.
1780 Fixes bugzilla 1102.
1781
5ee6f336
PP
1782PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1783 Bugzilla 1104.
1784
c8d52a00 1785TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1786 format-string attack -- SECURITY: remote arbitrary code execution.
1787
1788TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1789 time unintentionally subject to list matching rules, letting the header
1790 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1791 arbitrary string expansion). This allowed for information disclosure.
1792
1793PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1794 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1795
10906672 1796
aa097c4c
NM
1797Exim version 4.75
1798-----------------
1799
4c04137d 1800NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1801 Bugzilla 1073
1802
7f3d9eff
TF
1803TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1804 This fixes portability to compilers other than gcc, notably
1805 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1806
159f52d2
TF
1807TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1808 makefiles for portability to HP-UX and POSIX correctness.
1809
0cc9542a
PP
1810PP/01 Permit LOOKUP_foo enabling on the make command-line.
1811 Also via indented variable definition in the Makefile.
1812 (Debugging by Oliver Heesakkers).
1813
f7274286
PP
1814PP/02 Restore caching of spamd results with expanded spamd_address.
1815 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1816
7b797365
PP
1817PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1818 Improves build reliability. Fix from: Frank Elsner
1819
caacae52
NM
1820NM/02 Fix wide character breakage in the rfc2047 coding
1821 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1822
09dcaba9
NM
1823NM/03 Allow underscore in dnslist lookups
1824 Fixes bug 1026. Patch from Graeme Fowler
1825
bc19a55b
PP
1826PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1827 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1828
bd4c9759
NM
1829NM/04 Fixed exiqgrep to cope with mailq missing size issue
1830 Fixes bug 943.
1831
b72aab72
PP
1832PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1833 is logged, to avoid truncation. Patch from John Horne.
1834
2fe76745
PP
1835PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1836 Patch from Jakob Hirsch.
1837
76aa570c
PP
1838PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1839 SQL string expansion failure details.
1840 Patch from Andrey Oktyabrski.
1841
f1e5fef5
PP
1842PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1843 Patch from Simon Arlott.
1844
4d805ee9
PP
1845PP/09 New lookups functionality failed to compile on old gcc which rejects
1846 extern declarations in function scope.
1847 Patch from Oliver Fleischmann
1848
cd59ab18
PP
1849PP/10 Use sig_atomic_t for flags set from signal handlers.
1850 Check getgroups() return and improve debugging.
1851 Fixed developed for diagnosis in bug 927 (which turned out to be
1852 a kernel bug).
1853
332f5cf3
PP
1854PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1855 Patch from Mark Zealey.
1856
29cfeb94
PP
1857PP/12 Bugzilla 1056: Improved spamd server selection.
1858 Patch from Mark Zealey.
1859
660242ad
PP
1860PP/13 Bugzilla 1086: Deal with maildir quota file races.
1861 Based on patch from Heiko Schlittermann.
1862
bc4bc4c5
PP
1863PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1864 Patch from Uwe Doering, sign-off by Michael Haardt.
1865
2e64baa9
NM
1866NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1867 variable declaration deep within a block. Bug and patch from
1868 Dennis Davis.
1869
4c04137d 1870PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1871
6bac1a9a
PP
1872PP/16 Make DISABLE_DKIM build knob functional.
1873
552193f0
NM
1874NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1875 Patch by Simon Arlott
baeee2c1 1876
1b587e48
TF
1877TF/03 Fix valgrind.h portability to C89 compilers that do not support
1878 variable argument macros. Our copy now differs from upstream.
1879
aa097c4c 1880
8c07b69f
TF
1881Exim version 4.74
1882-----------------
1883
1884TF/01 Failure to get a lock on a hints database can have serious
1885 consequences so log it to the panic log.
1886
c0ea85ab
TF
1887TF/02 Log LMTP confirmation messages in the same way as SMTP,
1888 controlled using the smtp_confirmation log selector.
1889
0761d44e
TF
1890TF/03 Include the error message when we fail to unlink a spool file.
1891
0a349494
PP
1892DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1893 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1894 for maintaining out-of-tree patches for some time.
1895
1896PP/01 Bugzilla 139: Documentation and portability issues.
1897 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1898 Handle per-OS dynamic-module compilation flags.
1899
fea24b2e
PP
1900PP/02 Let /dev/null have normal permissions.
1901 The 4.73 fixes were a little too stringent and complained about the
1902 permissions on /dev/null. Exempt it from some checks.
1903 Reported by Andreas M. Kirchwitz.
1904
6545de78
PP
1905PP/03 Report version information for many libraries, including
1906 Exim version information for dynamically loaded libraries. Created
1907 version.h, now support a version extension string for distributors
1908 who patch heavily. Dynamic module ABI change.
1909
1670ef10
PP
1910PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1911 privilege escalation vulnerability whereby the Exim run-time user
1912 can cause root to append content of the attacker's choosing to
1913 arbitrary files.
1914
c0886197
PP
1915PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1916 (Wolfgang Breyha)
1917
b7487bce
PP
1918PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1919 If dropping privileges for untrusted macros, we disabled normal logging
1920 on the basis that it would fail; for the Exim run-time user, this is not
1921 the case, and it resulted in successful deliveries going unlogged.
1922 Fixed. Reported by Andreas Metzler.
1923
8c07b69f 1924
97fd1e48 1925Exim version 4.73
ed7f7860 1926-----------------
97fd1e48
PP
1927
1928PP/01 Date: & Message-Id: revert to normally being appended to a message,
1929 only prepend for the Resent-* case. Fixes regression introduced in
1930 Exim 4.70 by NM/22 for Bugzilla 607.
1931
6901c596
PP
1932PP/02 Include check_rfc2047_length in configure.default because we're seeing
1933 increasing numbers of administrators be bitten by this.
1934
a8c8d6b5
JJ
1935JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1936
77bb000f
PP
1937PP/03 Bugzilla 994: added openssl_options main configuration option.
1938
a29e5231
PP
1939PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1940
ec5a0394 1941PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 1942
55c75993
PP
1943PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1944
453a6645 1945PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
1946 without a peer certificate, leading to a segfault because of an
1947 assumption that peers always have certificates. Be a little more
453a6645
PP
1948 paranoid. Problem reported by Martin Tscholak.
1949
8544e77a
PP
1950PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1951 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1952 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
1953 CL also introduces -bmalware, various -d+acl logging additions and
1954 more caution in buffer sizes.
8544e77a 1955
83e029d5
PP
1956PP/09 Implemented reverse_ip expansion operator.
1957
ed7f7860
PP
1958PP/10 Bugzilla 937: provide a "debug" ACL control.
1959
7d9f747b
PP
1960PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1961
4b2241d2
PP
1962PP/12 Bugzilla 973: Implement --version.
1963
10385c15
PP
1964PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1965
dbc4b90d
PP
1966PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1967
532be449
PP
1968PP/15 Bugzilla 816: support multiple condition rules on Routers.
1969
6a8de854 1970PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
1971 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
1972 ignore trailing whitespace.
6a8de854 1973
5dc43717
JJ
1974JJ/02 prevent non-panic DKIM error from being sent to paniclog
1975
1976JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
1977 "exim" to be used
55c75993 1978
3346ab01
PP
1979PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
1980 Notification from Dr Andrew Aitchison.
1981
491fab4c
PP
1982PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
1983 ExtendedDetectionInfo response format.
1984 Notification from John Horne.
1985
13eb9497
PP
1986PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
1987 compatible.
1988
1989PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
1990 XSL and documented dependency on system catalogs, with examples of how
1991 it normally works.
1992
7f36d675
DW
1993DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
1994 access.
1995
c1d94452
DW
1996DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
1997 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
1998 configuration file which is writeable by the Exim user or group.
1999
e2f5dc15
DW
2000DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2001 of configuration files to cover files specified with the -C option if
2002 they are going to be used with root privileges, not just the default
2003 configuration file.
2004
cd25e41d
DW
2005DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2006 option (effectively making it always true).
2007
261dc43e
DW
2008DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2009 files to be used while preserving root privileges.
2010
fa32850b
DW
2011DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2012 that rogue child processes cannot use them.
2013
79d4bc3d
PP
2014PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2015 run-time user, instead of root.
2016
43236f35 2017PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2018 Exim run-time user without dropping privileges.
2019
fb08281f
DW
2020DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2021 result string, instead of calling string_vformat() twice with the same
2022 arguments.
3346ab01 2023
74935b98
DW
2024DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2025 for other users. Others should always drop root privileges if they use
2026 -C on the command line, even for a whitelisted configure file.
2027
90b6341f
DW
2028DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2029
57730b52
ML
2030NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2031
66581d1e 2032
465e92cf
JJ
2033Exim version 4.72
2034-----------------
2035
453a6645
PP
2036JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2037 $data_path, and $header_path variables; fixed documentation bugs and
2038 typos
465e92cf 2039
453a6645
PP
2040JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2041 exipick to access non-standard spools, including the "frozen" queue
2042 (Finput)
edae0343 2043
9bd3e22c
NM
2044NM/01 Bugzilla 965: Support mysql stored procedures.
2045 Patch from Alain Williams
2046
bb576ff7
NM
2047NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2048
5a1a5845
NM
2049NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2050 Patch from Andreas Metzler
2051
981a9fad
NM
2052NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2053 Patch from Kirill Miazine
2054
7fc497ee
NM
2055NM/05 Bugzilla 671: Added umask to procmail example.
2056
1a41defa
JJ
2057JJ/03 installed exipick 20100323.0, fixing doc bug
2058
a466095c 2059NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2060 directory. Notification and patch from Dan Rosenberg.
a466095c 2061
94a6bd0b
NM
2062TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2063
2064TK/02 Improve log output when DKIM signing operation fails.
2065
2066MH/01 Treat the transport option dkim_domain as a colon separated
2067 list, not as a single string, and sign the message with each element,
2068 omitting multiple occurences of the same signer.
2069
c1b141a8
NM
2070NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2071 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2072
b26eacf1 2073NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2074 Patch by Simon Arlott
2075
179c5980 2076PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2077 MBX locking. Notification from Dan Rosenberg.
179c5980 2078
9bd3e22c 2079
7c6d71af
NM
2080Exim version 4.71
2081-----------------
2082
7d9f747b 2083TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2084
f013fb92
NM
2085NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2086
0eb8eedd
NM
2087NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2088
663ee6d9
NM
2089NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2090
177ebd9b
NM
2091NM/04 Bugzilla 915: Flag broken perl installation during build.
2092
7c6d71af 2093
210f147e
NM
2094Exim version 4.70
2095-----------------
2096
cdd3bb85 2097TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2098 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2099
2100TK/02 Write list of recipients to X-Envelope-Sender header when building
2101 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2102 Hirsch).
cdd3bb85
TK
2103
2104TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2105 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2106 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2107
2108TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2109 by Mark Daniel Reidel <mr@df.eu>.
2110
210f147e
NM
2111NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2112 When building exim an external PCRE library is now needed -
2113 PCRE is a system library on the majority of modern systems.
2114 See entry on PCRE_LIBS in EDITME file.
2115
deafd5b3
NM
2116NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2117 conversation. Added nologin parameter to request.
7d9f747b 2118 Patch contributed by Kirill Miazine.
deafd5b3 2119
089793a4
TF
2120TF/01 Do not log submission mode rewrites if they do not change the address.
2121
5f16ca82
TF
2122TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2123
dae9d94e 2124NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2125 log files in place. Contributed by Roberto Lima.
dae9d94e 2126
7d9f747b 2127NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2128
06864c44
TF
2129TF/03 Bugzilla 615: When checking the local_parts router precondition
2130 after a local_part_suffix or local_part_prefix option, Exim now
2131 does not use the address's named list lookup cache, since this
2132 contains cached lookups for the whole local part.
2133
65a7d8c3 2134NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2135 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2136
23510047 2137TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2138
7d9f747b 2139NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2140
7d8eec3a 2141NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2142 Patch provided by Jan Srzednicki.
6c588e74 2143
89dec7b6
TF
2144TF/05 Leading white space used to be stripped from $spam_report which
2145 wrecked the formatting. Now it is preserved.
5f28a6e8 2146
a99de90c
TF
2147TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2148 that they are available at delivery time.
2149
e2803e40
TF
2150TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2151
7199e1ee
TF
2152TF/08 TLS error reporting now respects the incoming_interface and
2153 incoming_port log selectors.
2154
e276e04b
TF
2155TF/09 Produce a more useful error message if an SMTP transport's hosts
2156 setting expands to an empty string.
2157
ce552449 2158NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2159 Patch provided by Phil Pennock.
ce552449 2160
e765a0f1 2161NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2162 Patch provided by Richard Godbee.
e765a0f1 2163
4f054c63 2164NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2165 acl_smtp_notquit, added index entry.
4f054c63 2166
7d9f747b
PP
2167NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2168 Patch provided by Eugene Bujak.
24c929a2 2169
7d9f747b
PP
2170NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2171 accept(). Patch provided by Maxim Dounin.
cf73943b 2172
b52bc06e 2173NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2174 Patch provided by Phil Pennock.
b52bc06e 2175
447de4b0
NM
2176NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2177
4c69d561 2178NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2179 Patch provided by Brad "anomie" Jorsch.
4c69d561 2180
d5c39246 2181NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2182 Patch provided by Dean Brooks.
9b989985 2183
0b23848a
TK
2184TK/05 Add native DKIM support (does not depend on external libraries).
2185
8f3414a1 2186NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2187 Patch provided by Graeme Fowler.
e2aacdfd 2188
fb6f955d
NM
2189NM/16 Bugzilla 851: Documentation example syntax fix.
2190
2191NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2192
7d9f747b
PP
2193NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2194 lsearch.
dbb0bf41 2195
7d9f747b
PP
2196NM/19 Bugzilla 745: TLS version reporting.
2197 Patch provided by Phil Pennock.
f3766eb5 2198
7d9f747b
PP
2199NM/20 Bugzilla 167: bool: condition support.
2200 Patch provided by Phil Pennock.
36f12725 2201
7d9f747b
PP
2202NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2203 clients. Patch provided by Phil Pennock.
e6060e2c 2204
7d9f747b
PP
2205NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2206 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2207
7d9f747b
PP
2208NM/23 Bugzilla 687: Fix misparses in eximstats.
2209 Patch provided by Heiko Schlittermann.
d5c13d66 2210
7d9f747b
PP
2211NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2212 Patch provided by Heiko Schlittermann.
b2335c0b 2213
7d9f747b 2214NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2215 plus update to original patch.
f4cd9433 2216
7d9f747b 2217NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2218
7d9f747b
PP
2219NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2220 Patch provided by David Brownlee.
8dc71ab3 2221
7d9f747b 2222NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2223
7d9f747b 2224NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2225
7d9f747b 2226NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2227
7d9f747b 2228NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2229
17792b53 2230NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2231 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2232
7d9f747b
PP
2233NM/33 Bugzilla 898: Transport filter timeout fix.
2234 Patch by Todd Rinaldo.
52383f8f 2235
91576cec 2236NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2237 Patch by Serge Demonchaux.
5ca6d115 2238
7d9f747b
PP
2239NM/35 Bugzilla 39: Base64 decode bug fixes.
2240 Patch by Jakob Hirsch.
baee9eee 2241
7d9f747b 2242NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2243
7d9f747b 2244NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2245
7d9f747b 2246NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2247
7d9f747b 2248NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2249
deafd5b3 2250
47db1125
NM
2251Exim version 4.69
2252-----------------
2253
4b3504d0
TK
2254TK/01 Add preliminary DKIM support. Currently requires a forked version of
2255 ALT-N's libdkim that I have put here:
2256 http://duncanthrax.net/exim-experimental/
2257
2258 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2259 were called 'true' and it seems that C99 defines that as a reserved
2260 keyword to be used with 'bool' variable types. That means you could
2261 not include C99-style headers which use bools without triggering
2262 build errors in sieve.c.
2263
81ea09ca
NM
2264NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2265 as mailq or other aliases. Changed the --help handling significantly
2266 to do whats expected. exim_usage() emits usage/help information.
2267
f13cddcb
SC
2268SC/01 Added the -bylocaldomain option to eximstats.
2269
7d9f747b 2270NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2271
7d9f747b 2272NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2273
7d9f747b 2274NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2275
2276
eb4c0de6
PH
2277Exim version 4.68
2278-----------------
2279
2280PH/01 Another patch from the Sieve maintainer.
2281
6a3bceb1
PH
2282PH/02 When an IPv6 address is converted to a string for single-key lookup
2283 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2284 dots are used instead of colons so that keys in lsearch files need not
2285 contain colons. This was done some time before quoting was made available
2286 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2287 (notated using the quote facility) so as to distinguish them from IPv4
2288 keys. This meant that lookups for IP addresses in host lists did not work
2289 for iplsearch lookups.
2290
2291 This has been fixed by arranging for IPv6 addresses to be expressed with
2292 colons if the lookup type is iplsearch. This is not incompatible, because
2293 previously such lookups could never work.
2294
4c04137d 2295 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2296 ordinary lsearch keys. However, making the change in all cases is
2297 incompatible and would probably break a number of configurations.
2298
2e30fa9d
TK
2299TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2300 version.
2301
0806a9c5
MH
2302MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2303 conversion specification without a maximum field width, thereby enabling
2304 a rogue spamd server to cause a buffer overflow. While nobody in their
2305 right mind would setup Exim to query an untrusted spamd server, an
2306 attacker that gains access to a server running spamd could potentially
2307 exploit this vulnerability to run arbitrary code as the Exim user.
2308
ae276964
TK
2309TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2310 $primary_hostname instead of what libspf2 thinks the hosts name is.
2311
0f2cbd1b
MH
2312MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2313 a directory entry by the name of the lookup key. Previously, if a
2314 symlink pointed to a non-existing file or a file in a directory that
2315 Exim lacked permissions to read, a lookup for a key matching that
2316 symlink would fail. Now it is enough that a matching directory entry
2317 exists, symlink or not. (Bugzilla 503.)
2318
2b85bce7
PH
2319PH/03 The body_linecount and body_zerocount variables are now exported in the
2320 local_scan API.
2321
93655c46
PH
2322PH/04 Added the $dnslist_matched variable.
2323
6c512171
PH
2324PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2325 This means they are set thereafter only if the connection becomes
2326 encrypted.
2327
2328PH/06 Added the client_condition to authenticators so that some can be skipped
2329 by clients under certain conditions.
2330
aa6dc513
PH
2331PH/07 The error message for a badly-placed control=no_multiline_responses left
2332 "_responses" off the end of the name.
2333
a96603a0
PH
2334PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2335
8f240103
PH
2336PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2337 (without spaces) instead of just copying the configuration text.
2338
2339PH/10 Added the /noupdate option to the ratelimit ACL condition.
2340
d677b2f2
PH
2341PH/11 Added $max_received_linelength.
2342
d52120f2
PH
2343PH/12 Added +ignore_defer and +include_defer to host lists.
2344
64f2600a
PH
2345PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2346 way in which PCRE > 7.0 is built.
2347
8669f003
PH
2348PH/14 Implemented queue_only_load_latch.
2349
a4dc33a8
PH
2350PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2351 MAIL command. The effect was to mangle the value on 64-bit systems.
2352
d6a60c0f
PH
2353PH/16 Another patch from the Sieve maintainer.
2354
8f128379
PH
2355PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2356
8932dffe
PH
2357PH/18 If a system quota error occurred while trying to create the file for
2358 a maildir delivery, the message "Mailbox is full" was not appended to the
2359 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2360 only to a quota excession during the actual writing of the file.
d6a60c0f 2361
ddea74fa 2362PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2363 characters?) which causes problems in log lines. The DN values are now
2364 passed through string_printing() before being added to log lines.
2365
ddea74fa 2366PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2367 and InterBase are left for another time.)
2368
ddea74fa
PH
2369PH/21 Added message_body_newlines option.
2370
ce9f225c
PH
2371PH/22 Guard against possible overflow in moan_check_errorcopy().
2372
19897d52
PH
2373PH/23 POSIX allows open() to be a macro; guard against that.
2374
bc64a74d
PH
2375PH/24 If the recipient of an error message contained an @ in the local part
2376 (suitably quoted, of course), incorrect values were put in $domain and
2377 $local_part during the evaluation of errors_copy.
2378
eb4c0de6 2379
b4ed4da0
PH
2380Exim version 4.67
2381-----------------
2382
22ad45c9
MH
2383MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2384 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2385 Jan Srzednicki.
2386
b4ed4da0
PH
2387PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2388 issue a MAIL command.
2389
431b7361
PH
2390PH/02 In an ACL statement such as
2391
2392 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2393
2394 if a client was not listed at all, or was listed with a value other than
2395 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2396 the condition was not true (as it should be), so access was not denied.
2397 The bug was that the ! inversion was incorrectly passed on to the second
2398 item. This has been fixed.
2399
2400PH/03 Added additional dnslists conditions == and =& which are different from
2401 = and & when the dns lookup returns more than one IP address.
2402
83da1223
PH
2403PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2404 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2405
54fc8428
PH
2406PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2407 FSYNC, which compiles an option called disable_fsync that allows for
2408 bypassing fsync(). The documentation is heavily laced with warnings.
2409
34c5e8dd
SC
2410SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2411
bbe15da8
PH
2412PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2413 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2414 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2415 including adding "make clean"; (3) Added -fPIC when compiling the test
2416 dynamically loaded module, to get rid of a warning.
2417
0e8a9471
MH
2418MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2419 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2420 = 0s. The bug is otherwise harmless.
2421
f0872424
PH
2422PH/07 There was a bug in the dovecot authenticator such that the value of
2423 $auth1 could be overwritten, and so not correctly preserved, after a
2424 successful authentication. This usually meant that the value preserved by
2425 the server_setid option was incorrect.
2426
b01dd148
PH
2427PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2428
6bf342e1
PH
2429PH/09 Installed PCRE release 7.0.
2430
273f34d0
PH
2431PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2432 run for batched SMTP input. It is now run at the start of every message
2433 in the batch. While fixing this I discovered that the process information
2434 (output by running exiwhat) was not always getting set for -bs and -bS
2435 input. This is fixed, and it now also says "batched" for BSMTP.
2436
cf8b11a5
PH
2437PH/11 Added control=no_pipelining.
2438
41c7c167
PH
2439PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2440 patch, slightly modified), and move the expansion of helo_data till after
2441 the connection is made in the smtp transport (so it can use these
2442 values).
2443
9c57cbc0
PH
2444PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2445
f3f065bb
PH
2446PH/14 Added log_selector = +pid.
2447
047bdd8c
PH
2448PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2449
0ce9abe6
PH
2450PH/16 Add ${if forany and ${if forall.
2451
0e22dfd1
PH
2452PH/17 Added dsn_from option to vary the From: line in DSNs.
2453
4c590bd1
PH
2454PH/18 Flush SMTP output before performing a callout, unless control =
2455 no_callout_flush is set.
2456
09945f1e
PH
2457PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2458 was true (the default) a successful delivery failed to delete the retry
2459 item, thus causing premature timeout of the address. The bug is now
2460 fixed.
2461
c51b8e75
PH
2462PH/20 Added hosts_avoid_pipelining to the smtp transport.
2463
e28326d8 2464PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2465 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2466 other ACL rejections are.
2467
75b1493f
PH
2468PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2469 with slight modification.
2470
7c5214ec
PH
2471PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2472 draft, changing the syntax and factoring some duplicate code".
2473
4311097e
PH
2474PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2475 for deliveries of the second and subsequent messages over the same SMTP
2476 connection.
2477
29f89cad
PH
2478PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2479 ${reduce, with only minor "tidies".
2480
5e687460
SC
2481SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2482
c3611384
PH
2483PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2484 expansion side effects.
2485
5a11a7b4
PH
2486PH/27 When a message times out after an over-quota error from an Exim-imposed
2487 quota, the bounce message says "mailbox is full". This message was not
2488 being given when it was a system quota that was exceeded. It now should
2489 be the same.
2490
0e20aff9
MH
2491MH/03 Made $recipients available in local_scan(). local_scan() already has
2492 better access to the recipient list through recipients_list[], but
2493 $recipients can be useful in postmaster-provided expansion strings.
2494
ca86f471
PH
2495PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2496 in the case of a MAIL command with additional options following the
2497 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2498 were accidentally chopped off.
2499
a14e5636
PH
2500PH/29 SMTP synchronization checks are implemented when a command is read -
2501 there is a check that no more input is waiting when there shouldn't be
2502 any. However, for some commands, a delay in an ACL can mean that it is
2503 some time before the response is written. In this time, more input might
2504 arrive, invalidly. So now there are extra checks after an ACL has run for
2505 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2506 pipelining has not been advertised.
2507
ec95d1a6
PH
2508PH/30 MH's patch to allow iscntrl() characters to be list separators.
2509
42855d71
PH
2510PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2511 returned in the SMTP response when smtp_return_error_details was false.
2512 This has been fixed.
2513
57c2c631
PH
2514PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2515 instead of the C I/O that was originally supplied, because problems were
2516 reported on Solaris.
2517
58c01c94
PH
2518PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2519 Exim which did not show up earlier: it was assuming that a call to
2520 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2521 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2522 was a macro that became an assignment, so it seemed to work. This has
2523 changed to a proper function call with a void return, hence the compile
2524 error. Exim's code has been fixed.
2525
dee5a20a
PH
2526PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2527 cpus.
2528
d2ee6114
PH
2529PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2530
b2d5182b
PH
2531PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2532
79749a79
PH
2533PH/37 If a message is not accepted after it has had an id assigned (e.g.
2534 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2535 "Completed" line in the log. When some messages of this type were
2536 selected by exigrep, they were listed as "not completed". Others were
2537 picked up by some special patterns. I have improved the selection
2538 criteria to be more general.
79749a79 2539
c456d9bb
PH
2540PH/38 The host_find_failed option in the manualroute router can now be set
2541 to "ignore", to completely ignore a host whose IP address cannot be
2542 found. If all hosts are ignored, the behaviour is controlled by the new
2543 host_all_ignored option.
2544
cd9868ec
PH
2545PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2546 homing or because of multiple MX records with /mx) generated more than
2547 one IP address, and the following item turned out to be the local host,
2548 all the secondary addresses of the first item were incorrectly removed
2549 from the list, along with the local host and any following hosts (which
2550 is what is supposed to happen).
2551
ebeaf996
PH
2552PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2553 whoever called Exim into the -H file. In the case of the daemon it was
2554 behaving confusingly. When first started, it used values for whoever
2555 started the daemon, but after a SIGHUP it used the Exim user (because it
2556 calls itself on a restart). I have changed the code so that it now always
2557 uses the Exim user.
2558
2679d413
PH
2559PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2560 message are rejected with the same error (e.g. no authentication or bad
2561 sender address), and a DATA command is nevertheless sent (as can happen
2562 with PIPELINING or a stupid MUA), the error message that was given to the
2563 RCPT commands is included in the rejection of the DATA command. This is
2564 intended to be helpful for MUAs that show only the final error to their
2565 users.
2566
84024b72
PH
2567PH/42 Another patch from the Sieve maintainer.
2568
8005d38e
SC
2569SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2570 Eximstats - Fixed some broken HTML links and added missing column headers
2571 (Jez Hancock).
2572 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2573 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2574
3298c6c6
SC
2575SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2576
a43a27c5
PH
2577PH/43 Yet another patch from the Sieve maintainer.
2578
58eb016e 2579PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2580 the response to the final '.' that terminates a message, but only in the
2581 case where the client has not sent further data following the '.'
2582 (unfortunately, this is allowed). However, in many cases there won't be
2583 any further data because there won't be any more messages to send. A call
2584 to select() can be used: if it shows that the input is "ready", there is
2585 either input waiting, or the socket has been closed. An attempt to read
2586 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2587 would have sent an OK response which the client would never have see.
563b63fa
PH
2588 This could lead to message repetition. This fix should cure that, at
2589 least in a lot of common cases.
58eb016e 2590
b43a74ea
PH
2591PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2592 advertised in response to EHLO.
2593
b4ed4da0 2594
5dd1517f
PH
2595Exim version 4.66
2596-----------------
2597
2598PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2599 fixed by 4.65/MH/01 (is this a record?) are fixed:
2600
2601 (i) An empty string was always treated as zero by the numeric comparison
2602 operators. This behaviour has been restored.
2603
2604 (ii) It is documented that the numeric comparison operators always treat
2605 their arguments as decimal numbers. This was broken in that numbers
2606 starting with 0 were being interpreted as octal.
2607
2608 While fixing these problems I realized that there was another issue that
2609 hadn't been noticed. Values of message_size_limit (both the global option
2610 and the transport option) were treated as octal if they started with 0.
2611 The documentation was vague. These values are now always treated as
2612 decimal, and I will make that clear in the documentation.
2613
2614
93cfa765
TK
2615Exim version 4.65
2616-----------------
2617
2618TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2619 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2620 versions. (#438)
2621
d6066548
MH
2622MH/01 Don't check that the operands of numeric comparison operators are
2623 integers when their expansion is in "skipping" mode (fixes bug
2624 introduced by 4.64-PH/07).
2625
4362ff0d
PH
2626PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2627 child addresses, Exim now panics and dies. Previously, because the count
2628 is held in a short int, deliveries were likely to be lost. As such a
2629 large number of recipients for a single message is ridiculous
2630 (performance will be very, very poor), I have chosen to impose a limit
2631 rather than extend the field.
2632
93cfa765 2633
944e9e9c
TF
2634Exim version 4.64
2635-----------------
aa41d2de 2636
21d74bd9
TK
2637TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2638 leftover -K file (the existence of which was triggered by #402).
2639 While we were at it, introduced process PID as part of the -K
2640 filename. This should rule out race conditions when creating
2641 these files.
2642
2643TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2644 processing considerably. Previous code took too long for large mails,
2645 triggering a timeout which in turn triggers #401.
2646
2647TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2648 in the DK code in transports.c. sendfile() is not really portable,
2649 hence the _LINUX specificness.
944e9e9c
TF
2650
2651TF/01 In the add_headers option to the mail command in an Exim filter,
2652 there was a bug that Exim would claim a syntax error in any
2653 header after the first one which had an odd number of characters
2654 in the field name.
2655
2b1c6e3a
PH
2656PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2657 callout verification, Exim cached a "reject" for the entire domain. This
2658 is correct for most verifications, but it is not correct for a recipient
2659 verification with use_sender or use_postmaster set, because in that case
2660 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2661 case of MAIL FROM:<> rejection from other early rejections (e.g.
2662 rejection of HELO). When verifying a recipient using a non-null MAIL
2663 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2664 Whatever the result of the callout, the value of the domain cache is
2665 left unchanged (for any other kind of callout, getting as far as trying
2666 RCPT means that the domain itself is ok).
2667
1f872c80
PH
2668PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2669 gcc 4.1.1 threw up.
2670
2671PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2672 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2673 session, the daemon ignores ECONNECT errors and logs others; it now
2674 ignores EPIPE as well.
2675
d203e649
PH
2676PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2677 (quoted-printable decoding).
2678
cc2ed8f7 2679PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2680 later the small subsequent patch to fix an introduced bug.
f951fd57 2681
ddfcd446
PH
2682PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2683
d45b1de8
PH
2684PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2685
2686PH/08 An error is now given if message_size_limit is specified negative.
2687
38a0a95f 2688PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2689 to be given (somewhat) arbitrary names.
38a0a95f 2690
a2405d83
JJ
2691JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2692 in 4.64-PH/09.
2693
2694JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2695 miscellaneous code fixes
2696
6ea85e9a
PH
2697PH/10 Added the log_reject_target ACL modifier to specify where to log
2698 rejections.
2699
26da7e20
PH
2700PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2701 hostname. This is wrong, because it relates to the incoming message (and
2702 probably the interface on which it is arriving) and not to the outgoing
2703 callout (which could be using a different interface). This has been
2704 changed to use the value of the helo_data option from the smtp transport
2705 instead - this is what is used when a message is actually being sent. If
2706 there is no remote transport (possible with a router that sets up host
2707 addresses), $smtp_active_hostname is used.
6ea85e9a 2708
14aa5a05 2709PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2710 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2711 (a) The code assumed that strncpy() returns a negative number on buffer
2712 overflow, which isn't the case. Replaced with Exim's string_format()
2713 function.
2714 (b) There were several signed/unsigned issues. I just did the minimum
2715 hacking in of casts. There is scope for a larger refactoring.
2716 (c) The code used strcasecmp() which is not a standard C function.
2717 Replaced with Exim's strcmpic() function.
2718 (d) The code set only $1; it now sets $auth1 as well.
2719 (e) A simple test gave the error "authentication client didn't specify
2720 service in request". It would seem that Dovecot has changed its
2721 interface. Fortunately there's a specification; I followed it and
2722 changed what the client sends and it appears to be working now.
2723
ff75a1f7
PH
2724PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2725 decoding.
2726
e6f6568e
PH
2727PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2728 address A is aliased to B and C, where B exists and C does not. Without
2729 -v the output is "A verified" because verification stops after a
2730 successful redirection if more than one address is generated. However,
2731 with -v the child addresses are also verified. Exim was outputting "A
2732 failed to verify" and then showing the successful verification for C,
2733 with its parentage. It now outputs "B failed to verify", showing B's
2734 parentage before showing the successful verification of C.
2735
d6f6e0dc
PH
2736PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2737 look up a TXT record in a specific list after matching in a combined
2738 list.
2739
322050c2
PH
2740PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2741 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2742 they consult the DNS. I had assumed they would set it the way they
2743 wanted; and indeed my experiments on Linux seem to show that in some
2744 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2745 To be on the safe side, however, I have now made the interface to
2746 host_find_byname() similar to host_find_bydns(), with an argument
2747 containing the DNS resolver options. The host_find_byname() function now
2748 sets these options at its start, just as host_find_bydns() does. The smtp
2749 transport options dns_qualify_single and dns_search_parents are passed to
2750 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2751 of host_find_byname() use the default settings of RES_DEFNAMES
2752 (qualify_single) but not RES_DNSRCH (search_parents).
2753
08955dd3
PH
2754PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2755 spool_read_header() do less string testing, by means of a preliminary
2756 switch on the second character of optional "-foo" lines. (This is
2757 overdue, caused by the large number of possibilities that now exist.
2758 Originally there were few.) While I was there, I also converted the
2759 str(n)cmp tests so they don't re-test the leading "-" and the first
2760 character, in the hope this might squeeze out yet more improvement.
2761
1eccaa59
PH
2762PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2763 flag allowing group syntax was set by the header_syntax check but not
2764 turned off, possible causing trouble later; (2) The flag was not being
2765 set at all for the header_verify test, causing "group"-style headers to
2766 be rejected. I have now set it in this case, and also caused header_
2767 verify to ignore an empty address taken from a group. While doing this, I
2768 came across some other cases where the code for allowing group syntax
2769 while scanning a header line wasn't quite right (mostly, not resetting
2770 the flag correctly in the right place). These bugs could have caused
2771 trouble for malformed header lines. I hope it is now all correct.
2772
602e59e5
PH
2773PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2774 with the "reply" argument non-NULL. The code, however (which originally
2775 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2776 but it didn't always do it. This confused somebody who was copying the
2777 code for some other use. I have removed all the tests.
2778
411ef850
PH
2779PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2780 feature that was used to support insecure browsers during the U.S. crypto
2781 embargo. It requires special client support, and Exim is probably the
2782 only MTA that supported it -- and would never use it because real RSA is
2783 always available. This code has been removed, because it had the bad
2784 effect of slowing Exim down by computing (never used) parameters for the
2785 RSA_EXPORT functionality.
2786
7befa435
PH
2787PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2788 authenticator to fail if there's a tab character in the incoming data
2789 (there should never be unless someone is messing about, as it's supposed
2790 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2791 if the connection is using TLS or if the remote IP is the same as the
2792 local IP, and the "valid-client-cert option" if a client certificate has
2793 been verified.
2794
48da4259 2795PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2796 authenticators. This can be used for authorization after authentication
2797 succeeds. (In the case of plaintext, it servers for both authentication
2798 and authorization.)
2799
48da4259
PH
2800PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2801 if any retry times were supplied.
2802
d1d5595c
PH
2803PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2804 connection, where there is no client IP address to check. In this
2805 situation, the verify now always succeeds.
2806
0ef732d9
PH
2807PH/25 Applied John Jetmore's -Mset patch.
2808
328895cc
PH
2809PH/26 Added -bem to be like -Mset, but loading a message from a file.
2810
fd700877
PH
2811PH/27 In a string expansion for a processed (not raw) header when multiple
2812 headers of the same name were present, leading whitespace was being
2813 removed from all of them, but trailing whitespace was being removed only
2814 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2815 before concatenation. Completely empty headers in a concatenation (as
2816 before) are ignored.
fd700877 2817
8dce1a6f
PH
2818PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2819 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2820
17af4a17
PH
2821PH/29 [Removed. This was a change that I later backed out, and forgot to
2822 correct the ChangeLog entry (that I had efficiently created) before
2823 committing the later change.]
f6c332bd
PH
2824
2825PH/30 Exim was sometimes attempting to deliver messages that had suffered
2826 address errors (4xx response to RCPT) over the same connection as other
2827 messages routed to the same hosts. Such deliveries are always "forced",
2828 so retry times are not inspected. This resulted in far too many retries
2829 for the affected addresses. The effect occurred only when there were more
2830 hosts than the hosts_max_try setting in the smtp transport when it had
2831 the 4xx errors. Those hosts that it had tried were not added to the list
2832 of hosts for which the message was waiting, so if all were tried, there
2833 was no problem. Two fixes have been applied:
2834
2835 (i) If there are any address or message errors in an SMTP delivery, none
2836 of the hosts (tried or untried) are now added to the list of hosts
2837 for which the message is waiting, so the message should not be a
2838 candidate for sending over the same connection that was used for a
2839 successful delivery of some other message. This seems entirely
2840 reasonable: after all the message is NOT "waiting for some host".
2841 This is so "obvious" that I'm not sure why it wasn't done
2842 previously. Hope I haven't missed anything, but it can't do any
2843 harm, as the worst effect is to miss an optimization.
2844
2845 (ii) If, despite (i), such a delivery is accidentally attempted, the
2846 routing retry time is respected, so at least it doesn't keep
2847 hammering the server.
2848
c1114884
PH
2849PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2850 in ${readsocket because some servers need this prod.
2851
7a0743eb
PH
2852PH/32 Added some extra debug output when updating a wait-xxx database.
2853
0d85fa3f
PH
2854PH/33 The hint "could be header name not terminated by colon", which has been
2855 given for certain expansion errors for a long time, was not being given
2856 for the ${if def:h_colon_omitted{... case.
2857
1bf43b78
PH
2858PH/34 The spec says: "With one important exception, whenever a domain list is
2859 being scanned, $domain contains the subject domain." There was at least
2860 one case where this was not true.
2861
520de300
PH
2862PH/35 The error "getsockname() failed: connection reset by peer" was being
2863 written to the panic log as well as the main log, but it isn't really
2864 panic-worthy as it just means the connection died rather early on. I have
2865 removed the panic log writing for the ECONNRESET error when getsockname()
2866 fails.
2867
48c7f9e2
PH
2868PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2869 runs only) independently of the message's sender address. This meant
2870 that, if the 4xx error was in fact related to the sender, a different
2871 message to the same recipient with a different sender could confuse
4c04137d 2872 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2873 server, but other circumstances could also provoke similar problems.
2874 I have changed the default so that the retry time for these errors is now
2875 based a combination of the sender and recipient addresses. This change
2876 can be overridden by setting address_retry_include_sender=false in the
2877 smtp transport.
2878
99ea1c86
PH
2879PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2880 remote server are returned as part of bounce messages. This was not
2881 happening for LMTP over a pipe (the lmtp transport), but now it is the
2882 same for both kinds of LMTP.
2883
a2042e78
PH
2884PH/38 Despite being documented as not happening, Exim was rewriting addresses
2885 in header lines that were in fact CNAMEs. This is no longer the case.
2886
4fbcfc2e
PH
2887PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2888 and queue runs started by the daemon processed all messages. This has
2889 been fixed so that -R and -S can now usefully be given with -q<time>.
2890
aa41d2de
PH
2891PH/40 Import PCRE release 6.7 (fixes some bugs).
2892
af561417
PH
2893PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2894
3cc66b45
PH
2895PH/42 Give an error if -q is specified more than once.
2896
194cc0e4
PH
2897PH/43 Renamed the variables $interface_address and $interface_port as
2898 $received_ip_address and $received_port, to make it clear that these
2899 values apply to message reception, and not to the outgoing interface when
2900 a message is delivered. (The old names remain recognized, of course.)
2901
a401ddaa
PH
2902PH/44 There was no timeout on the connect() call when using a Unix domain
2903 socket in the ${readsocket expansion. There now is.
2904
4e88a19f
PH
2905PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2906 be meaningful with "accept".
2907
d7d7b289
SC
2908SC/01 Eximstats V1.43
2909 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2910
2911SC/02 Eximstats V1.44
2912 Use a glob alias rather than an array ref in the generated
2913 parser. This improves both readability and performance.
2914
2915SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2916 Collect SpamAssassin and rejection statistics.
2917 Don't display local sender or destination tables unless
2918 there is data to show.
2919 Added average volumes into the top table text output.
2920
2921SC/04 Eximstats V1.46
2922 Collect data on the number of addresses (recipients)
2923 as well as the number of messages.
2924
2925SC/05 Eximstats V1.47
2926 Added 'Message too big' to the list of mail rejection
2927 reasons (thanks to Marco Gaiarin).
2928
2929SC/06 Eximstats V1.48
2930 Mainlog lines which have GMT offsets and are too short to
2931 have a flag are now skipped.
2932
2933SC/07 Eximstats V1.49 (Alain Williams)
2934 Added the -emptyok flag.
2935
2936SC/08 Eximstats V1.50
2937 Fixes for obtaining the IP address from reject messages.
2938
0ea2a468
JJ
2939JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2940 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 2941 whitespace changes from 4.64-PH/27
0ea2a468
JJ
2942
2943JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2944 match 4.64-PH/13
2945
2946JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2947 are found, allow negative numbers in numeric criteria)
2948
2949JJ/06 exipick.20061117.2, added new $message_body_missing variable
2950
2951JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2952 to match changes made in 4.64-PH/43
2953
8a10f5a4
PH
2954PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2955
30e18802
PH
2956PH/47 Put in an explicit test for a DNS lookup of an address record where the
2957 "domain" is actually an IP address, and force a failure. This locks out
2958 those revolvers/nameservers that support "A-for-A" lookups, in
2959 contravention of the specifications.
2960
55728a4f
PH
2961PH/48 When a host name was looked up from an IP address, and the subsequent
2962 forward lookup of the name timed out, the host name was left in
2963 $sender_host_name, contrary to the specification.
d7d7b289 2964
d7837193
PH
2965PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2966 restricted to single-key lookups, Exim was not diagnosing an error if
2967 * or *@ was used with a query-style lookup.
2968
87054a31
PH
2969PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2970
ea2c01d2
MH
2971MH/01 local_scan ABI version incremented to 1.1. It should have been updated
2972 long ago, but noone interested enough thought of it. Let's just say that
2973 the "1.1" means that there are some new functions that weren't there at
2974 some point in the past.
2975
e4fa6968
PH
2976PH/51 Error processing for expansion failure of helo_data from an smtp
2977 transport during callout processing was broken.
2978
56f5d9bd
PH
2979PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
2980 tested/used via the -bh/-bhc/-bs options.
2981
922e1c28
PH
2982PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
2983 bug, fixed in subsequent PCRE releases).
2984
21eb6e72
PH
2985PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
2986 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
2987
a0540757
PH
2988PH/55 Check for a ridiculously long file name in exim_dbmbuild.
2989
944e9e9c 2990
478be7b0
SC
2991Exim version 4.63
2992-----------------
2993
2994SC/01 Use a glob alias rather than an array ref in eximstats generated
2995 parser. This improves both readability and performance.
2996
2997SC/02 Collect SpamAssassin and rejection statistics in eximstats.
2998 Don't display local sender or destination tables in eximstats unless
2999 there is data to show.
3000 Added average volumes into the eximstats top table text output.
3001
3002SC/03 Collect data on the number of addresses (recipients) as well
3003 as the number of messages in eximstats.
3004
2b965a65
TF
3005TF/01 Correct an error in the documentation for the redirect router. Exim
3006 does (usually) call initgroups() when daemonizing.
478be7b0 3007
45b91596
PH
3008TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3009 with consistent privilege compared to when running as a daemon.
478be7b0 3010
c59f5781
TF
3011TF/03 Note in the spec that $authenticated_id is not set for local
3012 submissions from trusted users.
3013
90fc3069
TF
3014TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3015 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3016
6083aca0
TF
3017TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3018 by adding some example configuration directives to the default
3019 configuration file. A little bit of work is required to uncomment the
3020 directives and define how usernames and passwords are checked, but
3021 there is now a framework to start from.
3022
765b530f
PH
3023PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3024 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3025 without this. I don't know how relevant this is to other LDAP libraries.
3026
4e167a8c
PH
3027PH/02 Add the verb name to the "unknown ACL verb" error.
3028
4608d683
PH
3029PH/03 Magnus Holmgren's patch for filter_prepend_home.
3030
b8dc3e4a
PH
3031PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3032
5418e93b
PH
3033PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3034 directory not expanded when it should be if an expanded home directory
3035 was set for the address (which is overridden by the transport).
3036
b4a9bda2
PH
3037PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3038 libradius.
3039
45b91596
PH
3040PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3041 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3042 because it is too late at that time, and has no effect.
3043
5547e2c5
PH
3044PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3045 security issue with \' (bugzilla #107). I could not use the
3046 PQescapeStringConn() function, because it needs a PGconn value as one of
3047 its arguments.
3048
dbcef0ea
PH
3049PH/08 When testing addresses using -bt, indicate those final addresses that
3050 are duplicates that would not cause an additional delivery. At least one
3051 person was confused, thinking that -bt output corresponded to deliveries.
3052 (Suppressing duplicates isn't a good idea as you lose the information
3053 about possibly different redirections that led to the duplicates.)
3054
25257489
PH
3055PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3056 systems where poll() doesn't work, in particular OS X.
3057
c816d124
PH
3058PH/10 Added more information to debugging output for retry time not reached.
3059
a9ccd69a
PH
3060PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3061 operations in malware.c.
3062
75fa1910
PH
3063PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3064 signatures.
3065
a7d7aa58
PH
3066PH/13 If write_rejectlog was set false when logging was sent to syslog with
3067 syslog_duplication set false, log lines that would normally be written
3068 both the the main log and to the reject log were not written to syslog at
3069 all.
3070
42119b09
PH
3071PH/14 In the default configuration, change the use of "message" in ACL warn
3072 statements to "add_header".
3073
41609df5
PH
3074PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3075 not followed by a command (e.g. "seen endif").
3076
a5bd321b
PH
3077PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3078 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3079 latter.
3080
e85a7ad5 3081PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3082 so that it is now:
3083
e85a7ad5
PH
3084 ${if or { \
3085 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3086 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3087 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3088 }{no}{yes}}
3089
e85a7ad5
PH
3090 The Auto-Submitted: and various List- headers are standardised, whereas I
3091 don't think Precedence: ever was.
5dff5817 3092
d8fe1c03
PH
3093PH/18 Refactored debugging code in route_finduser() to show more information,
3094 in particular, the error code if getpwnam() issues one.
3095
16282d2b
PH
3096PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3097 This is apparently needed in addition to the PH/07 change above to avoid
3098 any possible encoding problems.
3099
35d40a98
PH
3100PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3101 but not after initializing Perl.
3102
034d99ab
PH
3103PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3104 output them only if debugging. By default they are written stderr,
3105 apparently, which is not desirable.
3106
6ec97b1b
PH
3107PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3108 queries.
3109
e22ca4ac
JJ
3110JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3111 --not options
3112
3113JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3114
33d73e3b
PH
3115PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3116 authenticated or an ident call has been made. Suppress the default
3117 values for $authenticated_id and $authenticated_sender (but permit -oMai
3118 and -oMas) when testing with -bh.
3119
9ecb03f3
PH
3120PH/24 Re-jigged the order of the tests in the default configuration so that the
3121 tests for valid domains and recipients precede the DNS black list and CSA
3122 tests, on the grounds that those ones are more expensive.
3123
084efe8d
PH
3124PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3125 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3126 This bug exists in every version of Exim that I still have, right back to
3127 0.12.
3128
366fc9f0
PH
3129PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3130 However, an attempt to turn on case-sensitivity in a regex key by
3131 including (?-i) didn't work because the subject string was already
3132 lowercased, and the effects were non-intuitive. It turns out that a
3133 one-line patch can be used to allow (?-i) to work as expected.
3134
c59f5781 3135
c887c79e
TF
3136Exim version 4.62
3137-----------------
3138
3139TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3140 other effects) broke the use of negated acl sub-conditions.
3141
1cce3af8
PH
3142PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3143 patch).
3144
afb3eaaf
PH
3145PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3146 "Deny" causes Exim to reject the incoming connection with a 554 error.
3147 Unfortunately, if there is a major crisis, such as a disk failure,
3148 tcp-wrappers gives "deny", whereas what one would like would be some
3149 kind of temporary error. A kludge has been added to help with this.
3150 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3151 554 error is used if errno is still zero or contains ENOENT (which occurs
3152 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3153 451 error is used.
3154
e173618b
PH
3155PH/03 Add -lutil to the default FreeBSD LIBS setting.
3156
dd16e114
PH
3157PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3158 errors. Otherwise a message that provokes a temporary error (when other
3159 messages do not) can cause a whole host to time out.
3160
f7fd3850
PH
3161PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3162 addresses were routed directly to files or pipes from a redirect router.
3163 File deliveries just didn't batch; pipe deliveries might have suffered
3164 odd errors.
3165
d87df92c
PH
3166PH/06 A failure to get a lock for a hints database would erroneously always say
3167 "Failed to get write lock", even when it was really a read lock.
3168
7e9f683d
PH
3169PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3170 of 0600. This has been changed to use the value of the lockfile_mode
3171 option (which defaults to 0600).
3172
bfad5236
PH
3173PH/08 Applied small patch from the Sieve maintainer.
3174
01c490df
PH
3175PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3176 folder from quota calculations, a direct delivery into this folder messed
3177 up the contents of the maildirsize file. This was because the regex was
3178 used only to exclude .Trash (or whatever) when the size of the mailbox
3179 was calculated. There was no check that a delivery was happening into an
3180 excluded directory. This bug has been fixed by ignoring all quota
3181 processing for deliveries into excluded directories.
3182
d6629cdc
PH
3183PH/10 Added the maildirfolder_create_regex option to appendfile.
3184
1cce3af8 3185
214e2000
PH
3186Exim version 4.61
3187-----------------
3188
3189PH/01 The code for finding all the local interface addresses on a FreeBSD
3190 system running IPv6 was broken. This may well have applied to all BSD
3191 systems, as well as to others that have similar system calls. The broken
3192 code found IPv4 interfaces correctly, but gave incorrect values for the
3193 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3194 that it would not match correctly against @[] and not recognize the IPv6
3195 addresses as local.
3196
f9daeae0
PH
3197PH/02 The ipliteral router was not recognizing addresses of the form user@
3198 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3199
7e66e54d
PH
3200PH/03 Added disable_ipv6.
3201
c8ea1597
PH
3202PH/04 Changed $reply_address to use the raw form of the headers instead of the
3203 decoded form, because it is most often used to construct To: headers
3204 lines in autoreplies, and the decoded form may well be syntactically
3205 invalid. However, $reply_address has leading white space removed, and all
3206 newlines turned into spaces so that the autoreply transport does not
3207 grumble.
3208
911f6fde
PH
3209PH/05 If group was specified without a user on a router, and no group or user
3210 was specified on a transport, the group from the router was ignored.
3211
47ca6d6c
PH
3212PH/06 Increased the number of ACL variables to 20 of each type, and arranged
3213 for visible compile-time settings that can be used to change these
3214 numbers, for those that want even more. Backwards compatibility with old
3215 spool files has been maintained. However, going back to a previous Exim
3216 release will lost any variables that are in spool files.
3217
ed0e9820
PH
3218PH/07 Two small changes when running in the test harness: increase delay when
3219 passing a TCP/IP connection to a new process, in case the original
3220 process has to generate a bounce, and remove special handling of
3221 127.0.0.2 (sic), which is no longer necessary.
3222
eff37e47
PH
3223PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
3224 be the same on different OS.
3225
1921d2ea
PH
3226PH/09 Moved a debug statement in filter processing to avoid a race problem when
3227 testing.
3228
b3f69ca8
JJ
3229JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
3230 whether --show-vars was specified or not
3231
3232JJ/02 exipick: Added support for new ACL variable spool format introduced
3233 in 4.61-PH/06
3234
424a1c63
PH
3235PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
3236 syntactically invalid From: or Reply-to: line, and a filter used this to
3237 generate an autoreply, and therefore failed to obtain an address for the
3238 autoreply, Exim could try to deliver to a non-existent relative file
3239 name, causing unrelated and misleading errors. What now happens is that
3240 it logs this as a hard delivery error, but does not attempt to create a
3241 bounce message.
3242
7a100415
PH
3243PH/11 The exinext utility has a -C option for testing purposes, but although
3244 the given file was scanned by exinext itself; it wasn't being passed on
3245 when Exim was called.
3246
19b9dc85
PH
3247PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
3248 an end-of-file indication when reading a command response.
3249
309bd837
PH
3250PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
3251 compiled. In many other places in Exim, IPv6 addresses are always
3252 recognized, so I have changed this. It also means that IPv4 domain
3253 literals of the form [IPV4:n.n.n.n] are now always recognized.
3254
59e82a2a
PH
3255PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
3256 used if the router is not running as root, for example, when verifying at
3257 ACL time, or when using -bh. The debugging output from this situation was
3258 non-existent - all you got was a failure to exec. I have made two
3259 changes:
3260
3261 (a) Failures to set uid/gid, the current directory, or a process leader
3262 in a subprocess such as that created by queryprogram now generate
4c04137d 3263 suitable debugging output when -d is set.