DANE: smtp transport option dane_require_tls_ciphers
[exim.git] / doc / doc-txt / ChangeLog
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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
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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
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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
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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
JH
148 Do the same for the queue-runner loop, for variables set from spool
149 message files.
e04bfa34 150
d51dbacf
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151PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
152 tls_require_ciphers is used as before.
153
bbfb5dcd 154
acfc18c3
PP
155Exim version 4.90
156-----------------
157
158JH/01 Rework error string handling in TLS interface so that the caller in
159 more cases is responsible for logging. This permits library-sourced
160 string to be attached to addresses during delivery, and collapses
161 pairs of long lines into single ones.
162
856d1e16
PP
163PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
164 during configuration. Wildcards are allowed and expanded.
165
b9df1829
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166JH/02 Rework error string handling in DKIM to pass more info back to callers.
167 This permits better logging.
168
875512a3
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169JH/03 Rework the transport continued-connection mechanism: when TLS is active,
170 do not close it down and have the child transport start it up again on
171 the passed-on TCP connection. Instead, proxy the child (and any
172 subsequent ones) for TLS via a unix-domain socket channel. Logging is
173 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 174 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 175
fc3f96af
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176JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
177 identical IP addresses on different listening ports. Will also affect
178 "exiwhat" output.
179
98913c8e
BK
180PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
181 add noisy ifdef guards to special-case this sillyness.
182 Patch from Bernd Kuhls.
183
8d909960
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184JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
185 than 255 are no longer allowed.
186
7006ee24
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187JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
188 Disable the session-cache too, which might reduce our load. Since we
189 currrectly use a new context for every connection, both as server and
190 client, there is no benefit for these.
191 GnuTLS appears to not support tickets server-side by default (we don't
192 call gnutls_session_ticket_enable_server()) but client side is enabled
193 by default on recent versions (3.1.3 +) unless the PFS priority string
194 is used (3.2.4 +).
195
6e411084
PP
196PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
197 <https://reproducible-builds.org/specs/source-date-epoch/>.
198
4c2471ca
JH
199JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
200 the check for any unsuccessful recipients did not notice the limit, and
201 erroneously found still-pending ones.
202
4e910c01
JH
203JH/08 Pipeline CHUNKING command and data together, on kernels that support
204 MSG_MORE. Only in-clear (not on TLS connections).
205
42055a33
JH
206JH/09 Avoid using a temporary file during transport using dkim. Unless a
207 transport-filter is involved we can buffer the headers in memory for
208 creating the signature, and read the spool data file once for the
209 signature and again for transmission.
210
eeb35890
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211JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
212 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 213 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 214
b7d3afcf
JH
215JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
216 case where the routing stage had gathered several addresses to send to
217 a host before calling the transport for the first, we previously failed
218 to close down TLS in the old transport process before passing the TCP
219 connection to the new process. The new one sent a STARTTLS command
220 which naturally failed, giving a failed delivery and bloating the retry
221 database. Investigation and fix prototype from Wolfgang Breyha.
222
40525d07
JH
223JH/12 Fix check on SMTP command input synchronisation. Previously there were
224 false-negatives in the check that the sender had not preempted a response
225 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 226 awareness of the SMTP input buffering.
40525d07 227
f33875c3
PP
228PP/04 Add commandline_checks_require_admin option.
229 Exim drops privileges sanely, various checks such as -be aren't a
230 security problem, as long as you trust local users with access to their
231 own account. When invoked by services which pass untrusted data to
232 Exim, this might be an issue. Set this option in main configuration
233 AND make fixes to the calling application, such as using `--` to stop
234 processing options.
235
a5ffa9b4
JH
236JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
237 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
238 responses to those, into a single TLS record each way (this usually means
239 a single packet). As a side issue, smtp_enforce_sync now works on TLS
240 connections.
925ac8e4 241
6600985a
PP
242PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
243 affects you only if you're dancing at the edge of the param size limits.
244 If you are, and this message makes sense to you, then: raise the
245 configured limit or use OpenSSL 1.1. Nothing we can do for older
246 versions.
247
ac4d558b
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248JH/14 For the "sock" variant of the malware scanner interface, accept an empty
249 cmdline element to get the documented default one. Previously it was
250 inaccessible.
251
e69636bc
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252JH/15 Fix a crash in the smtp transport caused when two hosts in succession
253 are unsuable for non-message-specific reasons - eg. connection timeout,
254 banner-time rejection.
255
a843a57e
JH
256JH/16 Fix logging of delivery remote port, when specified by router, under
257 callout/hold.
258
8e041ae0
PP
259PP/06 Repair manualroute's ability to take options in any order, even if one
260 is the name of a transport.
833c70bc
PP
261 Fixes bug 2140.
262
35a04365
HSHR
263HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
264
4226691b
JH
265JH/17 Change the list-building routines interface to use the expanding-string
266 triplet model, for better allocation and copying behaviour.
267
d185889f
JH
268JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
269 Previously it was constructed the first time a possibly-matching string
270 was met in the configuration file input during startup; now it is done
271 during compilation.
272
0a6c178c
JH
273JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
274 compatible one, to avoid the (poorly documented) possibility of a config
275 file in the working directory redirecting the DB files, possibly correpting
02745400 276 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 277
fae8970d
JH
278JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
279 cache-hot. Previously, although the result was properly cached, the
280 initial verify call returned a defer.
281
ad1a76fe 282JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
283 the main verify for receipient in uncached-mode.
284
ad1a76fe
JH
285JH/22 Retire historical build files to an "unsupported" subdir. These are
286 defined as "ones for which we have no current evidence of testing".
287
135e9496
JH
288JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
289 if present. Previously it was ignored.
290
f2ed27cf
JH
291JH/24 Start using specified-initialisers in C structure init coding. This is
292 a C99 feature (it's 2017, so now considered safe).
293
7eb0e5d2
JH
294JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
295 if was a fixed-sized field and bitmask ops via macros; it is now more
296 extensible.
297
4f9f4be4
298PP/07 GitHub PR 56: Apply MariaDB build fix.
299 Patch provided by Jaroslav Škarvada.
300
dc4de9cc
PP
301PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
302 during Coverity cleanups [4.87 JH/47]
303 Diagnosis and fix provided by Michael Fischer v. Mollard.
304
ea18931d
JH
305JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
306 the right size to place the terminating semicolon on its own folded
307 line, the header hash was calculated to an incorrect value thanks to
308 the (relaxed) space the fold became.
309
2cee425a
HSHR
310HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
311 and confused the parent.
312
848214f7
JH
313JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
314 which could crash as a result. This could lead to undeliverable messages.
315
9e0ed81f
JH
316JH/28 Logging: "next input sent too soon" now shows where input was truncated
317 for log purposes.
318
2540f2f8
JH
319JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
320 matters on fast-turnover and PID-randomising systems, which were getting
321 out-of-order delivery.
322
e5ab0ba9
JH
323JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
324 a possibly-overlapping copy. The symptom was that "Remote host closed
325 connection in response to HELO" was logged instead of the actual 4xx
326 error for the HELO.
327
e99a3a6c
JH
328JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
329 Previously only that bufferd was discarded, resulting in SYMTP command
330 desynchronisation.
331
18067c75
JH
332JH/32 DKIM: when a message has multiple signatures matching an identity given
333 in dkim_verify_signers, run the dkim acl once for each. Previously only
334 one run was done. Bug 2189.
335
72934ba7
JH
336JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
337 "panic the current process" to "deliberately defer". The panic log is
338 still written with the problem list name; the mail and reject logs now
339 get a temp-reject line for the message that was being handled, saying
340 something like "domains check lookup or other defer". The SMTP 451
341 message is still "Temporary local problem".
342
625667b6
JH
343JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
344 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
345 freed. CVE-2017-16943.
346
347HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
348 from SMTP input. Previously it was always done; now only done for DATA
349 and not BDAT commands. CVE-2017-16944.
625667b6 350
d21bf202
JH
351JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
352 to the message (such as an overlong header line). Previously this was
353 not done and we did not exit BDAT mode. Followon from the previous item
354 though a different problem.
355
acfc18c3 356
fd047340 357Exim version 4.89
acfc18c3 358-----------------
4c57a40e 359
9427e879 360JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 361 than -2003 did; needs libidn2 in addition to libidn.
fd047340 362
7b283890
JH
363JH/02 The path option on a pipe transport is now expanded before use.
364
4c57a40e
PP
365PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
366 Patch provided by "Björn", documentation fix added too.
367
5d036699
JH
368JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
369 missing a wire-to-host endian conversion.
370
f4630439
JH
371JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
372 close after a BDAT command line could be taken as a following command,
373 giving a synch failure. Fix by only checking for synch immediately
374 before acknowledging the chunk.
375
f988ce57
JS
376PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
377 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
378 macro. Patches provided by Josh Soref.
379
bd8fbe36
JH
380JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
381 Previously we did not; the RFC seems ambiguous and VRFY is not listed
382 by IANA as a service extension. However, John Klensin suggests that we
383 should.
384
385JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
386 the dkim code may be unix-mode line endings rather than smtp wire-format
387 CRLF, so prepend a CR to any bare LF.
fd047340 388
bd8fbe36 389JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
390 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
391
bd8fbe36
JH
392JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
393 the first were themselves being wrongly included in the feed into dkim
394 processing; with most chunk sizes in use this resulted in an incorrect
395 body hash calculated value.
396
eea19017
JH
397JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
398 DKIM signature block, for verification. Although advised against by
399 standards it is specifically not ruled illegal.
400
44e6651b
JH
401JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
402
403JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
404 missing a body hash (the bh= tag).
405
406JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
407 It seems that HAProxy sends the Proxy Protocol information in clear and
408 only then does a TLS startup, so do the same.
409
410JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
411 TCP connections (such as for Spamd) unless the daemon successfully set
412 Fast Open mode on its listening sockets. This fixes breakage seen on
413 too-old kernels or those not configured for Fast Open, at the cost of
414 requiring both directions being enabled for TFO, and TFO never being used
415 by non-daemon-related Exim processes.
416
417JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
418 endings, at least on the first header line. Try to canonify any that get
419 past that check, despite the cost.
420
b6040544
JH
421JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
422 now limited to an arbitrary five deep, while parsing addresses with the
423 strip_excess_angle_brackets option enabled.
424
f700ea4d
PP
425PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
426 instead leave the unprompted TLS handshake in socket buffer for the
427 TLS library to consume.
428
da88acae
PP
429PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
430
f6ef9370
PP
431PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
432
90341c71
JH
433JH/16 Drop variables when they go out of scope. Memory management drops a whole
434 region in one operation, for speed, and this leaves assigned pointers
435 dangling. Add checks run only under the testsuite which checks all
436 variables at a store-reset and panics on a dangling pointer; add code
437 explicitly nulling out all the variables discovered. Fixes one known
438 bug: a transport crash, where a dangling pointer for $sending_ip_address
439 originally assigned in a verify callout, is re-used.
440
1ec2ab36
PP
441PP/06 Drop '.' from @INC in various Perl scripts.
442
443PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
444
445PP/08 Reduce a number of compilation warnings under clang; building with
446 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
447 should be warning-free.
448
8b2b9480
PP
449JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
450
451HS/01 Fix portability problems introduced by PP/08 for platforms where
452 realloc(NULL) is not equivalent to malloc() [SunOS et al].
453
d953610f
HSHR
454HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
455 chunk. This allows us to accept broken chunked messages. We need a more
456 general solution here.
457
7dc5f827
PP
458PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
459 already-broken messages in the queue.
460
4bb432cb
PP
461JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
462
3b1a84c8
PP
463JH/19 Fix reference counting bug in routing-generated-address tracking.
464
902fbd69 465
8d042305
JH
466Exim version 4.88
467-----------------
4c57a40e 468
9094b84b
JH
469JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
470 supports it and a size is available (ie. the sending peer gave us one).
8d042305 471
03d5892b
JH
472JH/02 The obsolete acl condition "demime" is removed (finally, after ten
473 years of being deprecated). The replacements are the ACLs
474 acl_smtp_mime and acl_not_smtp_mime.
475
4b0fe319
JH
476JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
477 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
478 or even an in-clear connection were permitted. Now, if the host lookup
479 was dnssec and dane was requested then the host is only used if the
480 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
481 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
482 if one fails this test.
483 This means that a poorly-configured remote DNS will make it incommunicado;
484 but it protects against a DNS-interception attack on it.
485
789f8a4f
JH
486JH/04 Bug 1810: make continued-use of an open smtp transport connection
487 non-noisy when a race steals the message being considered.
488
23bb6982 489JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 490 self-signed certificate for inbound TLS connections.
23bb6982 491
0bd1b1ed 492JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 493 in rewrites and routers.
0bd1b1ed 494
20b9a2dc
JH
495JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
496 and logged a warning sing 4.83; now they are a configuration file error.
497
05392bbc
JH
498JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
499 (lacking @domain). Apply the same qualification processing as RCPT.
500
1a6230a3
JH
501JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
502
cfab9d68
JH
503JH/10 Support ${sha256:} applied to a string (as well as the previous
504 certificate).
505
98c82a3d
JH
506JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
507 a cutthrough deliver is pending, as we always want to make a connection.
508 This also avoids re-routing the message when later placing the cutthrough
509 connection after a verify cache hit.
510 Do not update it with the verify result either.
511
512JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
513 when routing results in more than one destination address.
514
ae8386f0
JH
515JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
516 signing (which inhibits the cutthrough capability). Previously only
517 the presence of an option was tested; now an expansion evaluating as
518 empty is permissible (obviously it should depend only on data available
519 when the cutthrough connection is made).
520
0d9fa8c0
JH
521JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
522 the relevant preceding SMTP command did not note the pipelining mode.
523
3581f321
JH
524JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
525 Previously they were not counted.
526
ef3a1a30
JH
527JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
528 as one having no matching records. Previously we deferred the message
529 that needed the lookup.
530
4c04137d 531JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
532 distinguished as "(=".
533
1435d4b2
JH
534JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
535 for missing MX records. Previously it only worked for missing A records.
536
eea0defe
JB
537JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
538
539JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
540 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 541
4c04137d 542JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
543 even for a "none" policy. Patch from Tony Meyer.
544
1c788856
JH
545JH/22 Fix continued use of a connection for further deliveries. If a port was
546 specified by a router, it must also match for the delivery to be
547 compatible.
548
e3b1f624
JH
549JH/23 Bug 1874: fix continued use of a connection for further deliveries.
550 When one of the recipients of a message was unsuitable for the connection
551 (has no matching addresses), we lost track of needing to mark it
552 deferred. As a result mail would be lost.
553
a57ce043
JH
554JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
555
f59aaaaa 556JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
557 takes up less space and should be simpler to maintain. Merge the ACL
558 condition decode tables also, with similar effect.
d7bed771 559
d1f9fb42
JH
560JH/26 Fix problem with one_time used on a redirect router which returned the
561 parent address unchanged. A retry would see the parent address marked as
562 delivered, so not attempt the (identical) child. As a result mail would
563 be lost.
564
92b0827a
JH
565JH/27 Fix a possible security hole, wherein a process operating with the Exim
566 UID can gain a root shell. Credit to http://www.halfdog.net/ for
567 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
568 itself :(
569
ddf1b11a
JH
570JH/28 Enable {spool,log} filesystem space and inode checks as default.
571 Main config options check_{log,spool}_{inodes,space} are now
572 100 inodes, 10MB unless set otherwise in the configuration.
573
3cc3f762
JH
574JH/29 Fix the connection_reject log selector to apply to the connect ACL.
575 Previously it only applied to the main-section connection policy
576 options.
577
ae5afa61
JH
578JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
579
317e40ac
PP
580PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
581 by me. Added RFC7919 DH primes as an alternative.
582
8b0fb68e
PP
583PP/02 Unbreak build via pkg-config with new hash support when crypto headers
584 are not in the system include path.
585
ad7fc6eb 586JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 587 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
588 Exim did stdio operations after fclose. This was exposed by a recent
589 change which nulled out the file handle after the fclose.
ad7fc6eb 590
ee5b1e28
JH
591JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
592 signed directly by the cert-signing cert, rather than an intermediate
593 OCSP-signing cert. This is the model used by LetsEncrypt.
594
5ddc9771
JH
595JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
596
8d73599f
JH
597HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
598 an incoming connection.
599
446415f5
HSHR
600HS/02 Bug 1802: Do not half-close the connection after sending a request
601 to rspamd.
602
8e53a4fc
HSHR
603HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
604 fallback to "prime256v1".
8d042305 605
87cb4a16 606JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 607 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
608
609
0d9b78be
JH
610Exim version 4.87
611-----------------
4c57a40e 612
82d14d6a
JH
613JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
614 and 3.4.4 - once the server is enabled to respond to an OCSP request
615 it does even when not requested, resulting in a stapling non-aware
616 client dropping the TLS connection.
0d9b78be 617
6c6d6e48
TF
618TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
619 support variable-length bit vectors. No functional change.
620
ac881e27
TF
621TF/02 Improve the consistency of logging incoming and outgoing interfaces.
622 The I= interface field on outgoing lines is now after the H= remote
623 host field, same as incoming lines. There is a separate
624 outgoing_interface log selector which allows you to disable the
625 outgoing I= field.
626
c8899c20
JH
627JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
628 If not running log_selector +smtp_connection the mainlog would be held
629 open indefinitely after a "too many connections" event, including to a
630 deleted file after a log rotate. Leave the per net connection logging
631 leaving it open for efficiency as that will be quickly detected by the
632 check on the next write.
633
f1b81d81
HSHR
634HS/01 Bug 1671: Fix post transport crash.
635 Processing the wait-<transport> messages could crash the delivery
636 process if the message IDs didn't exist for some reason. When
637 using 'split_spool_directory=yes' the construction of the spool
638 file name failed already, exposing the same netto behaviour.
639
f38917cc
JH
640JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
641 mime_regex ACL conditions.
642
895fbaf2
JH
643JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
644 to DSN fail messages (bounces): remote IP, remote greeting, remote response
645 to HELO, local diagnostic string.
646
805bb5c3
JH
647JH/05 Downgrade message for a TLS-certificate-based authentication fail from
648 log line to debug. Even when configured with a tls authenticator many
649 client connections are expected to not authenticate in this way, so
650 an authenticate fail is not an error.
651
56c2a7be
HSHR
652HS/02 Add the Exim version string to the process info. This way exiwhat
653 gives some more detail about the running daemon.
654
4c04137d 655JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
656 matter for fast-change records such as DNSBLs.
657
6f6dedcc
JH
658JH/07 Bug 1678: Always record an interface option value, if set, as part of a
659 retry record, even if constant. There may be multiple transports with
660 different interface settings and the retry behaviour needs to be kept
661 distinct.
662
0f557e90
JH
663JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
664
665JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
666
ec0eb1a3
JH
667JH/10 Bug 840: fix log_defer_output option of pipe transport
668
41e93589
JH
669JH/11 Bug 830: use same host for all RCPTS of a message, even under
670 hosts_randomize. This matters a lot when combined with mua_wrapper.
671
98b98887 672JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
673 ${quote_pgsql:<string>} operator.
674
98b98887
JH
675JH/13 Bug 1708: avoid misaligned access in cached lookup.
676
858e91c2
JH
677JH/14 Change header file name for freeradius-client. Relevant if compiling
678 with Radius support; from the Gentoo tree and checked under Fedora.
679
680JH/15 Bug 1712: Introduce $prdr_requested flag variable
681
6ff55e50
JH
682JH/16 Bug 1714: Permit an empty string as expansion result for transport
683 option transport_filter, meaning no filtering.
684
3b957582
JB
685JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
686
23f3dc67
JH
687JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
688 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 689 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
690 If a server certificate is not supplied (via tls_certificate) an error is
691 logged, and clients will find TLS connections fail on startup. Presumably
692 they will retry in-clear.
693 Packagers of Exim are strongly encouraged to create a server certificate
694 at installation time.
695
240c288f
JH
696HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
697 with the $config_file variable.
698
5ef5dd52
JB
699JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
700 in transport context, after the attempt, and per-recipient. The latter type
701 is per host attempted. The event data is the error message, and the errno
702 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 703 and the trailing two digits of the smtp 4xx response.
5ef5dd52 704
e161710d
GF
705GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
706 to write to mainlog (or rejectlog, paniclog) in the window between file
707 creation and permissions/ownership being changed. Particularly affects
708 installations where exicyclog is run as root, rather than exim user;
709 result is that the running daemon panics and dies.
710
a159f203
JH
711JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
712
7f06582c
JH
713JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
714 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
715 "pri" and "weight". Note that the previous implicit priority given by the
716 list order is no longer honoured.
717
4c04137d 718JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
719 for DKIM processing.
720
f0989ec0
JH
721JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
722 by defining SUPPORT_SOCKS.
74f150bf 723
cee5f132
JH
724JH/26 Move PROXY support from Experimental to mainline, enabled for a build
725 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
726 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
727 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 728
8c5d388a
JH
729JH/27 Move Internationalisation support from Experimental to mainline, enabled
730 for a build by defining SUPPORT_I18N
731
2d8d625b
JH
732JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
733 of the query string, and make ${quote_redis:} do that quoting.
734
0cbf2b82
JH
735JH/29 Move Events support from Experimental to mainline, enabled by default
736 and removable for a build by defining DISABLE_EVENT.
737
f2f2c91b
JH
738JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
739
ce325893
JH
740JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
741 cached by the daemon.
742
de78e2d5
JH
743JH/32 Move Redis support from Experimental to mainline, enabled for a build
744 by defining LOOKUP_REDIS. The libhiredis library is required.
745
379ba7d0
JH
746JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
747 keys are given for lookup.
748
f444c2c7
JH
749JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
750 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
751 only supported when built with TLS support. The PolarSSL SHA routines
752 are still used when the TLS library is too old for convenient support.
f444c2c7 753
a57b6200
JH
754JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
755 openssl_options), for security. OpenSSL forces this from version 1.1.0
756 server-side so match that on older versions.
757
07c73177 758JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 759 allocation for $value could be released as the expansion processing
07c73177 760 concluded, but leaving the global pointer active for it.
fa01e4f8 761
4f6ae5c3
JH
762JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
763 and to use the domains and local_parts ACL conditions.
764
1bc460a6
JH
765JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
766 incorrectly not doubled on cutthrough transmission, hence seen as a
767 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 768 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
769 via the normal store-and-forward channel. This could result in duplicates
770 received - but deduplicating mailstores were liable to retain only the
771 initial truncated version.
772
ab9152ff 773JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 774
67e87fcf
JH
775JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
776
ab9152ff
JH
777JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
778 we're in there, support oversigning also; bug 1309.
779
af483912
JH
780JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
781
bc3c7bb7 782HS/04 Add support for keep_environment and add_environment options.
df3def24 783
13559da6
JH
784JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
785 either intentional arithmetic overflow during PRNG, or testing config-
786 induced overflows.
787
59eaad2b
JH
788JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
789 delivery resulted in actual delivery. Cancel cutthrough before DATA
790 stage.
791
f9334a28
JH
792JH/45 Fix cutthrough, when connection not opened by verify and target hard-
793 rejects a recipient: pass the reject to the originator.
794
dc8091e7
JH
795JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
796 Many were false-positives and ignorable, but it's worth fixing the
797 former class.
798
dfe7d917
JH
799JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
800 for the new environment-manipulation done at startup. Move the routines
801 from being local to tls.c to being global via the os.c file.
802
93cc2d6e
JH
803JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
804 an extract embedded as result-arg for a map, the first arg for extract
805 is unavailable so we cannot tell if this is a numbered or keyed
806 extraction. Accept either.
807
13559da6 808
9c695f6d
JH
809Exim version 4.86
810-----------------
4c57a40e 811
9c695f6d
JH
812JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
813 expanded.
814
506900af
JH
815JH/02 The smtp transport option "multi_domain" is now expanded.
816
ad07e9ad
JH
817JH/03 The smtp transport now requests PRDR by default, if the server offers
818 it.
819
01a4a5c5 820JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 821 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
822 can be used to disable this per-host. The build option
823 EXPERIMENTAL_CERTNAMES is withdrawn.
824
cb1d7830 825JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 826 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
827 For GnuTLS, only version 3.0.20 or later.
828
610ff438 829JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
830 (but not required) by default. The verification status is now logged by
831 default, for both outbound TLS and client-certificate supplying inbound
832 TLS connections
610ff438 833
f926e272
JH
834JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
835 sites use this now.
836
50dc7409
JH
837JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
838 Status Notification (bounce) messages are now MIME format per RFC 3464.
839 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
840 under the control of the dsn_advertise_hosts option, and routers may
841 have a dsn_lasthop option.
842
0f0c8159
JH
843JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
844 default, modifiable by a malware= option. The list separator for
23763898 845 the options can now be changed in the usual way. Bug 68.
4e71661f 846
1ad6489e
JH
847JH/10 The smtp_receive_timeout main option is now expanded before use.
848
aeaf5db3
JH
849JH/11 The incoming_interface log option now also enables logging of the
850 local interface on delivery outgoing connections.
851
5032d1cf
JH
852JH/12 The cutthrough-routing facility now supports multi-recipient mails,
853 if the interface and destination host and port all match.
854
7e8360e6
JH
855JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
856 /defer_ok option.
857
c5f280e2
AL
858JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
859 Patch from Andrew Lewis.
860
fd4d8871 861JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 862 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
863 modifiers per server. Patch originally by <rommer@active.by>.
864
865JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
866 and remote servers. Remote servers can be IPv6 addresses, and
867 specify a port-range.
fd4d8871 868
23763898
JH
869JH/17 Bug 68: The spamd_address main option now supports an optional
870 timeout value per server.
871
2ad78978
JH
872JH/18 Bug 1581: Router and transport options headers_add/remove can
873 now have the list separator specified.
874
8a512ed5 875JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 876 option values.
8a512ed5 877
82c0c8ea 878JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
879 under OpenSSL.
880
cc00f4af
JH
881JH/21 Support for the A6 type of dns record is withdrawn.
882
82c0c8ea
JH
883JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
884 rather than the verbs used.
885
b980ed83
JH
886JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
887 from 255 to 1024 chars.
888
6c9ed72e
JH
889JH/24 Verification callouts now attempt to use TLS by default.
890
cfab9d68 891HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 892 are generic router options now. The defaults didn't change.
50dc7409 893
f846c8f5
JH
894JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
895 Original patch from Alexander Shikoff, worked over by JH.
896
fd4c285c
HSHR
897HS/02 Bug 1575: exigrep falls back to autodetection of compressed
898 files if ZCAT_COMMAND is not executable.
899
4c04137d 900JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 901
d2a2c69b
JH
902JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
903
8241d8dd
JH
904JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
905 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 906 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
907 (and we were inconsistent anyway for A-only vs AAAA+A).
908
1f12df4d
JH
909JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
910
1f155f8e
JH
911JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
912 when evaluating $sender_host_dnssec.
913
1705dd20
JH
914JH/31 Check the HELO verification lookup for DNSSEC, adding new
915 $sender_helo_dnssec variable.
916
038597d2
PP
917JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
918
474f71bf
JH
919JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
920
7137ca4b
JH
921JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
922
dcb1095c
JH
923JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
924 documented as working, but never had. Support all but $spam_report.
925
2f460950
JH
926JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
927 added for tls authenticator.
928
2f680c0c
HSHR
929HS/03 Add perl_taintmode main config option
930
9c695f6d 931
e449c3b0
TL
932Exim version 4.85
933-----------------
4c57a40e 934
e449c3b0
TL
935TL/01 When running the test suite, the README says that variables such as
936 no_msglog_check are global and can be placed anywhere in a specific
937 test's script, however it was observed that placement needed to be near
938 the beginning for it to behave that way. Changed the runtest perl
939 script to read through the entire script once to detect and set these
940 variables, reset to the beginning of the script, and then run through
941 the script parsing/test process like normal.
942
ac20058f
TL
943TL/02 The BSD's have an arc4random API. One of the functions to induce
944 adding randomness was arc4random_stir(), but it has been removed in
945 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
946 function when detected.
947
a9b8ec8b
JH
948JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
949 cause callback expansion.
950
6286d7c4
TL
951TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
952 syntax errors in an expansion can be treated as a string instead of
953 logging or causing an error, due to the internal use of bool_lax
954 instead of bool when processing it.
955
0f06b4f2 956JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
957 server certificates when making smtp deliveries.
958
be36e572
JH
959JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
960
ac4ef9bd
JH
961JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
962
0eb51736
TL
963TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
964
c713ca4b
TL
965TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
966 Merged patch from Sebastian Wiedenroth.
e449c3b0 967
bd21a787
WB
968JH/05 Fix results-pipe from transport process. Several recipients, combined
969 with certificate use, exposed issues where response data items split
970 over buffer boundaries were not parsed properly. This eventually
971 resulted in duplicates being sent. This issue only became common enough
4c04137d 972 to notice due to the introduction of connection certificate information,
bd21a787
WB
973 the item size being so much larger. Found and fixed by Wolfgang Breyha.
974
8bc732e8
JH
975JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
976 size buffer was used, resulting in syntax errors when an expansion
977 exceeded it.
978
a7fec7a7
JH
979JH/07 Add support for directories of certificates when compiled with a GnuTLS
980 version 3.3.6 or later.
981
4c04137d 982JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
983 is EXPERIMENTAL_EVENT, the main-configuration and transport options
984 both become "event_action", the variables become $event_name, $event_data
aec45841 985 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
986 routers, transports and related events. The tls:cert event is now also
987 raised for inbound connections, if the main configuration event_action
988 option is defined.
774ef2d7 989
eca4debb
TL
990TL/06 In test suite, disable OCSP for old versions of openssl which contained
991 early OCSP support, but no stapling (appears to be less than 1.0.0).
992
8d692470
JH
993JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
994 server certificate names available under the smtp transport option
995 "tls_verify_cert_hostname" now do not permit multi-component wildcard
996 matches.
997
e9477a08
JH
998JH/10 Time-related extraction expansions from certificates now use the main
999 option "timezone" setting for output formatting, and are consistent
1000 between OpenSSL and GnuTLS compilations. Bug 1541.
1001
ad4c5ff9
JH
1002JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1003 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1004
1005JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1006 include certificate info, eximon was claiming there were spoolfile
1007 syntax errors.
1008
3394b36a 1009JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1010
1011JH/14 Log delivery-related information more consistently, using the sequence
1012 "H=<name> [<ip>]" wherever possible.
1013
3394b36a
TL
1014TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1015 are problematic for Debian distribution, omit them from the release
1016 tarball.
1017
ad4c5ff9
JH
1018JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1019
4c04137d 1020JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1021 Bug 1561.
1022
1023JH/17 Fix a null-indirection in certextract expansions when a nondefault
1024 output list separator was used.
1025
8bc732e8 1026
1f0ebb98
TL
1027Exim version 4.84
1028-----------------
09728d20
TL
1029TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1030 checkers that were complaining about end of non-void function with no
1031 return.
1f0ebb98 1032
a612424f 1033JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1034 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1035
1036JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1037
1038TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1039 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1040
1f0ebb98 1041
c0e56233
TF
1042Exim version 4.83
1043-----------------
1044
1045TF/01 Correctly close the server side of TLS when forking for delivery.
1046
1047 When a message was received over SMTP with TLS, Exim failed to clear up
1048 the incoming connection properly after forking off the child process to
1049 deliver the message. In some situations the subsequent outgoing
1050 delivery connection happened to have the same fd number as the incoming
1051 connection previously had. Exim would try to use TLS and fail, logging
1052 a "Bad file descriptor" error.
1053
7245734e
TF
1054TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1055 utilities have not been installed.
1056
fd5dad68
JH
1057JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1058 temporary space as the ACL may create new global variables.
1059
5428a946
TL
1060TL/01 LDAP support uses per connection or global context settings, depending
1061 upon the detected version of the libraries at build time.
1062
a3c86431
TL
1063TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1064 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1065 were a direct connection from the outside internet. PPv2 support was
1066 updated based on HAProxy spec change in May 2014.
a3c86431 1067
aa26e137
JH
1068JH/02 Add ${listextract {number}{list}{success}{fail}}.
1069
5a1b8443
WB
1070TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1071 Properly escape header and check for NULL return.
1072
72c9e342
PP
1073PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1074 not dns_use_dnssec.
1075
76f44207
WB
1076JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1077
770747fd
MFM
1078TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1079 characters in header names, implemented as a verify condition.
1080 Contributed by Michael Fischer v. Mollard.
1081
8ddef691 1082TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1083 results permerror and temperror. Previous values are deprecated but
1084 still accepted. In a future release, err_perm and err_temp will be
1085 completely removed, which will be a backward incompatibility if the
1086 ACL tests for either of these two old results. Patch contributed by
8ddef691 1087 user bes-internal on the mailing list.
c0e56233 1088
b9c2e32f
AR
1089JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1090
e45a1c37
JH
1091JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1092 selectors, in both main and reject logs.
1093
67d81c10
JH
1094JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1095 failed delivery.
1096
b1f8e4f8
JH
1097JH/07 Add malware type "sock" for talking to simple daemon.
1098
511a6c14 1099JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1100
1101JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1102 routers/transports under cutthrough routing.
214042d2 1103
51c7471d
JH
1104JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1105 numbers. Touch up "bool" conditional to keep the same definition.
1106
3695be34
TL
1107TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1108
1e06383a
TL
1109JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1110
76146973
JH
1111JH/12 Expand items in router/transport headers_add or headers_remove lists
1112 individually rather than the list as a whole. Bug 1452.
1113
1114 Required for reasonable handling of multiple headers_ options when
1115 they may be empty; requires that headers_remove items with embedded
1116 colons must have them doubled (or the list-separator changed).
1117
8c8b8274
TL
1118TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1119 view the policy declared in the DMARC record. Currently, $dmarc_status
1120 is a combined value of both the record presence and the result of the
1121 analysis.
b1f8e4f8 1122
35aba663
JH
1123JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1124
8c51eead 1125JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1126 dnslookup router and the smtp transport (applying to the forward
1127 lookup).
8c51eead 1128
deae092e
HS
1129TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1130 of ldap servers used for a specific lookup. Patch provided by Heiko
1131 Schlichting.
35aba663 1132
fd3b6a4a 1133JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1134 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1135
8d91c6dc
LT
1136TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1137 Patch submitted by Lars Timman.
1138
2b4a568d
JH
1139JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1140
d2af03f4
HS
1141TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1142 Requires trusted mode and valid format message id, aborts otherwise.
1143 Patch contributed by Heiko Schlichting.
1144
9d1c15ef
JH
1145JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1146 certextract with support for various fields. Bug 1358.
1147
44662487
JH
1148JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1149 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1150 hosts_request_ocsp.
1151
ed3bba5f 1152JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1153 operate on certificate variables to give certificate fingerprints
9ef9101c 1154 Also new ${sha256:cert_variable}.
44662487 1155
8ccd00b1
JH
1156JH/23 The PRDR feature is moved from being Experimental into the mainline.
1157
8ded8589
TL
1158TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1159 Christian Aistleitner.
1160
f2de3a33
JH
1161JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1162
6eb02f88
TL
1163TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1164 file. Patch from Wolfgang Breyha.
1165
00bff6f6
JH
1166JH/25 Expand the coverage of the delivery $host and $host_address to
1167 client authenticators run in verify callout. Bug 1476.
1168
071c51f7
JH
1169JH/26 Port service names are now accepted for tls_on_connect_ports, to
1170 align with daemon_smtp_ports. Bug 72.
1171
a6d4c44e
TF
1172TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1173 support and error reporting did not work properly.
1174
3ae173e7
ACK
1175TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1176 and is readable. Patch from Andrew Colin Kissa.
1177
c13d09b8
TL
1178TL/14 Enhance documentation of ${run expansion and how it parses the
1179 commandline after expansion, particularly in the case when an
1180 unquoted variable expansion results in an empty value.
1181
0df4ab80
JH
1182JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1183
66be95e0
PP
1184PP/02 Fix internal collision of T_APL on systems which support RFC3123
1185 by renaming away from it. Addresses GH issue 15, reported by
1186 Jasper Wallace.
1187
1bd0d12b
JH
1188JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1189
0de7239e
TL
1190TL/15 SECURITY: prevent double expansion in math comparison functions
1191 (can expand unsanitized data). Not remotely exploitable.
1192 CVE-2014-2972
1193
fd3b6a4a 1194
2c422e6f 1195Exim version 4.82
98a90c36
PP
1196-----------------
1197
1198PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1199
12f69989
PP
1200PP/02 Make -n do something, by making it not do something.
1201 When combined with -bP, the name of an option is not output.
1202
54c90be1
PP
1203PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1204 by GnuTLS.
1205
1f4a55da
PP
1206PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1207 $sender_host_name and config options to manage this, and basic check
1208 routines.
1209
13363eba 1210PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1211
66645890 1212PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1213 (Only plugin which currently uses this is kerberos4, which nobody should
1214 be using, but we should make it available and other future plugins might
1215 conceivably use it, even though it would break NAT; stuff *should* be
1216 using channel bindings instead).
66645890 1217
a3fb9793 1218PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1219 name; added for Sendmail compatibility; requires admin caller.
1220 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1221 just ignore it); requires trusted caller.
a3fb9793 1222 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1223 Bugzilla 1117.
a3fb9793 1224
d27f98fe 1225TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1226
6822b909
TL
1227TL/02 Add +smtp_confirmation as a default logging option.
1228
e7568d51
TL
1229TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1230 Patch by Magnus Holmgren from 2007-02-20.
1231
ae0e32ee 1232TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1233 Bugzilla 1283 - Spec typo.
97f42f10 1234 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1235
1236TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1237
e2658fff
TL
1238TL/06 Add Experimental DMARC support using libopendmarc libraries.
1239
83712b39
TL
1240TL/07 Fix an out of order global option causing a segfault. Reported to dev
1241 mailing list by by Dmitry Isaikin.
1242
976b7e9f
JH
1243JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1244
be4a1376
JH
1245JH/02 Support "G" suffix to numbers in ${if comparisons.
1246
ec4b68e5
PP
1247PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1248
d7148a07
NM
1249NM/01 Bugzilla 1197 - Spec typo
1250 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1251
585121e2 1252JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1253
2519e60d
TL
1254PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1255 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1256 function.
a5f239e4 1257
13d08c90
PP
1258PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1259 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1260
bef3ea7f
JH
1261JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1262 "acl {{name}{arg}...}", and optional args on acl condition
1263 "acl = name arg..."
a5f239e4 1264
846726c5
JH
1265JH/05 Permit multiple router/transport headers_add/remove lines.
1266
3a796370
JH
1267JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1268
ea722490 1269JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1270 Performance patch from Paul Fisher. Bugzilla 1262.
1271
b1b05573
JH
1272JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1273 Bugzilla 884.
1274
362145b5
JH
1275JH/09 Add $headers_added variable, with content from use of ACL modifier
1276 add_header (but not yet added to the message). Bugzilla 199.
1277
3c0a92dc
JH
1278JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1279 Pulled from Bugzilla 817 by Wolfgang Breyha.
1280
6d7c6175
PP
1281PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1282 CVE-2012-5671
e78e6ecf 1283 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1284
6f123593
JH
1285JH/11 Add A= logging on delivery lines, and a client_set_id option on
1286 authenticators.
1287
c8e2fc1e
JH
1288JH/12 Add optional authenticated_sender logging to A= and a log_selector
1289 for control.
1290
005ac57f
PP
1291PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1292
3f1df0e3
PP
1293PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1294 advertise SMTP AUTH mechanism to us, instead of a generic
1295 protocol violation error. Also, make Exim more robust to bad
1296 data from the Dovecot auth socket.
1297
67bd1ab3
TF
1298TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1299
1300 When a queue runner is handling a message, Exim first routes the
1301 recipient addresses, during which it prunes them based on the retry
1302 hints database. After that it attempts to deliver the message to
1303 any remaining recipients. It then updates the hints database using
1304 the retry rules.
1305
1306 So if a recipient address works intermittently, it can get repeatedly
1307 deferred at routing time. The retry hints record remains fresh so the
1308 address never reaches the final cutoff time.
1309
1310 This is a fairly common occurrence when a user is bumping up against
1311 their storage quota. Exim had some logic in its local delivery code
1312 to deal with this. However it did not apply to per-recipient defers
1313 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1314
1ddeb334
TF
1315 This change adds a proper retry rule check during routing so that the
1316 final cutoff time is checked against the message's age. We only do
1317 this check if there is an address retry record and there is not a
1318 domain retry record; this implies that previous attempts to handle
1319 the address had the retry_use_local_parts option turned on. We use
1320 this as an approximation for the destination being like a local
1321 delivery, as in LMTP.
67bd1ab3
TF
1322
1323 I suspect this new check makes the old local delivery cutoff check
1324 redundant, but I have not verified this so I left the code in place.
1325
326cdc37
TF
1326TF/02 Correct gecos expansion when From: is a prefix of the username.
1327
1328 Test 0254 submits a message to Exim with the header
1329
1330 Resent-From: f
1331
1332 When I ran the test suite under the user fanf2, Exim expanded
1333 the header to contain my full name, whereas it should have added
1334 a Resent-Sender: header. It erroneously treats any prefix of the
1335 username as equal to the username.
1336
1337 This change corrects that bug.
1338
f62514b3
GF
1339GF/01 DCC debug and logging tidyup
1340 Error conditions log to paniclog rather than rejectlog.
1341 Debug lines prefixed by "DCC: " to remove any ambiguity.
1342
eb505532
TF
1343TF/03 Avoid unnecessary rebuilds of lookup-related code.
1344
14c7b357
PP
1345PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1346 Bug spotted by Jeremy Harris; was flawed since initial commit.
1347 Would have resulted in OCSP responses post-SNI triggering an Exim
1348 NULL dereference and crash.
1349
94eaf700
PP
1350JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1351
6f5a440a
PP
1352PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1353 Bug detection, analysis and fix by Samuel Thibault.
1354 Bugzilla 1331, Debian bug #698092.
1355
514ee161
SC
1356SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1357
fd98a5c6
JH
1358JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1359 Server implementation by Todd Lyons, client by JH.
1360 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1361 config variable "prdr_enable" controls whether the server
1362 advertises the facility. If the client requests PRDR a new
1363 acl_data_smtp_prdr ACL is called once for each recipient, after
1364 the body content is received and before the acl_smtp_data ACL.
4c04137d 1365 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1366 on the smtp transport, and the server advertisement.
1367 Default client logging of deliveries and rejections involving
1368 PRDR are flagged with the string "PRDR".
1369
035c7f1e
PP
1370PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1371 fclose(). Diagnosis by Todd Lyons.
1372
ff284120
PP
1373PP/17 Update configure.default to handle IPv6 localhost better.
1374 Patch by Alain Williams (plus minor tweaks).
1375 Bugzilla 880.
1376
26e72755
PP
1377PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1378 This is now consistent with GnuTLS, and is now documented: the
1379 previous undocumented portable approach to treating the option as
1380 unset was to force an expansion failure. That still works, and
1381 an empty string is now equivalent.
1382
0fbd9bff
PP
1383PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1384 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1385 not performing validation itself.
1386
700d22f3
PP
1387PP/20 Added force_command boolean option to pipe transport.
1388 Patch from Nick Koston, of cPanel Inc.
1389
fcc8e047
JH
1390JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1391 Bugzilla 321, 823.
1392
4c04137d 1393TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1394
8c020188
PP
1395PP/21 Fix eximon continuous updating with timestamped log-files.
1396 Broken in a format-string cleanup in 4.80, missed when I repaired the
1397 other false fix of the same issue.
1398 Report and fix from Heiko Schlichting.
1399 Bugzilla 1363.
1400
d13cdd30
PP
1401PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1402 Report from Prashanth Katuri.
1403
e2fbf4a2
PP
1404PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1405 It's SecureTransport, so affects any MacOS clients which use the
1406 system-integrated TLS libraries, including email clients.
1407
f4c1088b
PP
1408PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1409 using a MIME ACL for non-SMTP local injection.
1410 Report and assistance in diagnosis by Warren Baker.
1411
c5c2182f
PP
1412TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1413
73431ca9
JH
1414JH/16 Fix comparisons for 64b. Bugzilla 1385.
1415
2d07a215
TL
1416TL/09 Add expansion variable $authenticated_fail_id to keep track of
1417 last id that failed so it may be referenced in subsequent ACL's.
1418
a30a8861
TL
1419TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1420 Alexander Miroch.
1421
33382dd9
TL
1422TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1423 ldap library initialization, allowing self-signed CA's to be
1424 used. Also properly sets require_cert option later in code by
1425 using NULL (global ldap config) instead of ldap handle (per
1426 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1427
046172e6
TL
1428TL/12 Enhanced documentation in the ratelimit.pl script provided in
1429 the src/util/ subdirectory.
1430
581d7bee 1431TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1432 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1433 EXPERIMENTAL_TPDA.
1434
1435TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1436 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1437 redis_servers = needs to be configured which will be used by the redis
1438 lookup. Patch from Warren Baker, of The Packet Hub.
1439
237b2cf2
TL
1440TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1441
9fc5a352
TL
1442TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1443 hostname or reverse DNS when processing a host list. Used suggestions
1444 from multiple comments on this bug.
1a7b746d 1445
b10e4ec2
TL
1446TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1447
e2cebd74
TL
1448TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1449 Missed a few lines, added it to make the runtest require no keyboard
1450 interaction.
1451
1452TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1453 contains upper case chars. Make router use caseful_local_part.
1454
2519e60d
TL
1455TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1456 support when GnuTLS has been built with p11-kit.
1457
e78e6ecf 1458
4263f395
PP
1459Exim version 4.80.1
1460-------------------
1461
1462PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1463 CVE-2012-5671
2c422e6f 1464 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1465
ea722490 1466
b1770b6e 1467Exim version 4.80
0599f9cf
PP
1468-----------------
1469
1470PP/01 Handle short writes when writing local log-files.
1471 In practice, only affects FreeBSD (8 onwards).
1472 Bugzilla 1053, with thanks to Dmitry Isaikin.
1473
23c7e742
NM
1474NM/01 Bugzilla 949 - Documentation tweak
1475
b322aac8
NM
1476NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1477 improved.
1478
4a891427
NM
1479NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1480
c1e794ba 1481PP/02 Implemented gsasl authenticator.
b322aac8 1482
97753960
PP
1483PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1484
1485PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1486 `pkg-config foo` for cflags/libs.
1487
df6303fa
PP
1488PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1489 with rest of GSASL and with heimdal_gssapi.
1490
7e6a8985
PP
1491PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1492 `pkg-config foo` for cflags/libs for the TLS implementation.
1493
f1e05cc7 1494PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1495 properties get this fed in as external SSF. A number of robustness
1496 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1497
4c287009
PP
1498PP/08 cyrus_sasl server now expands the server_realm option.
1499
b98bb9ac
PP
1500PP/09 Bugzilla 1214 - Log authentication information in reject log.
1501 Patch by Jeremy Harris.
1502
4a6a987a
PP
1503PP/10 Added dbmjz lookup type.
1504
c45dd180 1505PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1506
7db8d074
PP
1507PP/12 MAIL args handles TAB as well as SP, for better interop with
1508 non-compliant senders.
1509 Analysis and variant patch by Todd Lyons.
1510
eae0036b 1511NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1512 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1513 Patch from Dirk Mueller <dmueller@suse.com>
1514
dec5017e
PP
1515PP/13 tls_peerdn now print-escaped for spool files.
1516 Observed some $tls_peerdn in wild which contained \n, which resulted
1517 in spool file corruption.
1518
c80c5570
PP
1519PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1520 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1521 or write after TLS renegotiation, which otherwise led to messages
1522 "Got SSL error 2".
1523
076b11e2
PP
1524TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1525 as a tracking header (ie: a signed header comes before the signature).
1526 Patch from Wolfgang Breyha.
1527
5407bfff
JH
1528JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1529 comma-sep list; embedded commas doubled.
1530
9e45c72b
PP
1531JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1532
e74376d8
PP
1533PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1534 diagnostics.
1535 Report and patch from Dmitry Banschikov.
1536
4c04137d 1537PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1538 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1539 failures. We appear to now support TLS1.1+ with Exim.
1540
7be682ca
PP
1541PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1542 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1543 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1544 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1545
ef840681
PP
1546PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1547 NULL dereference. Report and patch from Alun Jones.
1548
5bfb4cdf
PP
1549PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1550 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1551 Not seeing resolver debug output on NetBSD, but suspect this is a
1552 resolver implementation change.
1553
c6e95d22
PP
1554PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1555 Left warnings. Added "eximon gdb" invocation mode.
1556
9cbad13b
PP
1557PP/21 Defaulting "accept_8bitmime" to true, not false.
1558
9ee44efb
PP
1559PP/22 Added -bw for inetd wait mode support.
1560
6a6084f8
PP
1561PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1562 locate the relevant includes and libraries. Made this the default.
1563
12dd53c7
PP
1564PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1565 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1566
9e45c72b 1567JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1568 This may cause build issues on older platforms.
1569
17c76198
PP
1570PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1571 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1572 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1573 Added SNI support via GnuTLS too.
af3498d6 1574 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1575
53947857 1576PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1577
eae0036b 1578PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1579 Applied second patch from Janne, implementing suggestion to default
1580 multiple-strings-in-record handling to match SPF spec.
eae0036b 1581
9e45c72b 1582JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1583
7390e768
PP
1584PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1585 read-only, out of scope).
1586 Patch from Wolfgang Breyha, report from Stuart Northfield.
1587
08488c86
PP
1588PP/29 Fix three issues highlighted by clang analyser static analysis.
1589 Only crash-plausible issue would require the Cambridge-specific
1590 iplookup router and a misconfiguration.
1591 Report from Marcin Mirosław.
1592
6475bd82
PP
1593PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1594
81f91683
PP
1595PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1596 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1597 As part of this, removing so much warning spew let me fix some minor
1598 real issues in debug logging.
1599
5779e6aa
PP
1600PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1601 assignment on my part. Fixed.
1602
3375e053
PP
1603PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1604 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1605 Janne Snabb (who went above and beyond: thank you).
1606
1607PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1608 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1609 relatively easy to get wrong. Should also expose TLS library linkage
1610 problems.
3375e053 1611
9d26b8c0
PP
1612PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1613 64-bit ${eval} (JH/03).
1614
57eb9e91 1615PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1616 GNU libc to support some of the 64-bit stuff, should not lead to
1617 conflicts. Defined before os.h is pulled in, so if a given platform
1618 needs to override this, it can.
1619
16880d1a
PP
1620PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1621 protection layer was required, which is not implemented.
1622 Bugzilla 1254, patch from Wolfgang Breyha.
1623
a799883d
PP
1624PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1625 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1626 tls_dhparam take prime identifiers. Also unbreak combination of
1627 OpenSSL+DH_params+TLSSNI.
1628
3ecab157 1629PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1630
0599f9cf 1631
867fcbf5
PP
1632Exim version 4.77
1633-----------------
1634
1635PP/01 Solaris build fix for Oracle's LDAP libraries.
1636 Bugzilla 1109, patch from Stephen Usher.
1637
f1a29782
TF
1638TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1639
ab42bd23
TK
1640TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1641 whitespace trailer
867fcbf5 1642
0ca0cf52
TF
1643TF/02 Fix a couple more cases where we did not log the error message
1644 when unlink() failed. See also change 4.74-TF/03.
1645
921b12ca
TF
1646TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1647 lock up or crash if it happened to be inside a call to libc when it
1648 got a SIGUSR1 from exiwhat.
1649
1650 The SIGUSR1 handler appends the current process status to the process
1651 log which is later printed by exiwhat. It used to use the general
1652 purpose logging code to do this, but several functions it calls are
1653 not safe for signals.
1654
1655 The new output code in the SIGUSR1 handler is specific to the process
1656 log, and simple enough that it's easy to inspect for signal safety.
1657 Removing some special cases also simplifies the general logging code.
1658 Removing the spurious timestamps from the process log simplifies
1659 exiwhat.
1660
c99ce5c9
TF
1661TF/04 Improved ratelimit ACL condition.
1662
1663 The /noupdate option has been deprecated in favour of /readonly which
1664 has clearer semantics. The /leaky, /strict, and /readonly update modes
1665 are mutually exclusive. The update mode is no longer included in the
1666 database key; it just determines when the database is updated. (This
4c04137d 1667 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1668
1669 Exim now checks that the per_* options are used with an update mode that
1670 makes sense for the current ACL. For example, when Exim is processing a
1671 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1672 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1673 must specify per_mail/readonly. If you omit the update mode it defaults to
1674 /leaky where that makes sense (as before) or /readonly where required.
1675
1676 The /noupdate option is now undocumented but still supported for
1677 backwards compatibility. It is equivalent to /readonly except that in
1678 ACLs where /readonly is required you may specify /leaky/noupdate or
1679 /strict/noupdate which are treated the same as /readonly.
1680
1681 A useful new feature is the /count= option. This is a generalization
1682 of the per_byte option, so that you can measure the throughput of other
1683 aggregate values. For example, the per_byte option is now equivalent
1684 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1685
1686 The per_rcpt option has been generalized using the /count= mechanism
1687 (though it's more complicated than the per_byte equivalence). When it is
1688 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1689 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1690 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1691 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1692 Note that using per_rcpt with a non-readonly update mode in more than
1693 one ACL will cause the recipients to be double-counted. (The per_mail
1694 and per_byte options don't have this problem.)
1695
1696 The handling of very low rates has changed slightly. If the computed rate
1697 is less than the event's count (usually one) then this event is the first
1698 after a long gap. In this case the rate is set to the same as this event's
1699 count, so that the first message of a spam run is counted properly.
1700
1701 The major new feature is a mechanism for counting the rate of unique
1702 events. The new per_addr option counts the number of different
1703 recipients that someone has sent messages to in the last time period. It
1704 behaves like per_rcpt if all the recipient addresses are different, but
1705 duplicate recipient addresses do not increase the measured rate. Like
1706 the /count= option this is a general mechanism, so the per_addr option
1707 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1708 example, measure the rate that a client uses different sender addresses
1709 with the options per_mail/unique=$sender_address. There are further
1710 details in the main documentation.
1711
3634fc25
TF
1712TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1713
792e8a19
TF
1714TF/06 Removed a few PCRE remnants.
1715
5901f0ab
TF
1716TF/07 Automatically extract Exim's version number from tags in the git
1717 repository when doing development or release builds.
1718
7f2a2a43
PP
1719PP/02 Raise smtp_cmd_buffer_size to 16kB.
1720 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1721
061b7ebd
PP
1722PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1723 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1724 Bugzilla 97.
1725
e12f8c32
PP
1726PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1727
9e949f00 1728PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1729 Bugzilla 1078. Patch from John Horne.
1730
1731PP/06 Stop make process more reliably on build failure.
1732 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1733
555ae6af 1734PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1735 Bugzilla 1089. Patch from Heiko Schlittermann.
1736
1737PP/08 Handle ${run} returning more data than OS pipe buffer size.
1738 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1739
6f7fe114
PP
1740PP/09 Handle IPv6 addresses with SPF.
1741 Bugzilla 860. Patch from Wolfgang Breyha.
1742
c566dd90
PP
1743PP/10 GnuTLS: support TLS 1.2 & 1.1.
1744 Bugzilla 1156.
89f897c3
PP
1745 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1746 Bugzilla 1095.
c566dd90 1747
d6cc7c78 1748PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1749 New compile-time build option, EXPAND_LISTMATCH_RHS.
1750 New expansion conditions, "inlist", "inlisti".
1751
0d0e4455
PP
1752PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1753
3399bb60 1754PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1755
1756PP/14 fix log_write() format string regression from TF/03.
1757 Bugzilla 1152. Patch from Dmitry Isaikin.
1758
0ca0cf52 1759
10906672
PP
1760Exim version 4.76
1761-----------------
1762
1763PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1764
754a0503
PP
1765PP/02 Harmonised TLS library version reporting; only show if debugging.
1766 Layout now matches that introduced for other libraries in 4.74 PP/03.
1767
c0c7b2da
PP
1768PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1769
e97d1f08
PP
1770PP/04 New "dns_use_edns0" global option.
1771
084c1d8c
PP
1772PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1773 Bugzilla 1098.
1774
4e7ee012
PP
1775PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1776 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1777
c8d52a00
PP
1778TK/01 Updated PolarSSL code to 0.14.2.
1779 Bugzilla 1097. Patch from Andreas Metzler.
1780
54e7ce4a
PP
1781PP/07 Catch divide-by-zero in ${eval:...}.
1782 Fixes bugzilla 1102.
1783
5ee6f336
PP
1784PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1785 Bugzilla 1104.
1786
c8d52a00 1787TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1788 format-string attack -- SECURITY: remote arbitrary code execution.
1789
1790TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1791 time unintentionally subject to list matching rules, letting the header
1792 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1793 arbitrary string expansion). This allowed for information disclosure.
1794
1795PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1796 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1797
10906672 1798
aa097c4c
NM
1799Exim version 4.75
1800-----------------
1801
4c04137d 1802NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1803 Bugzilla 1073
1804
7f3d9eff
TF
1805TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1806 This fixes portability to compilers other than gcc, notably
1807 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1808
159f52d2
TF
1809TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1810 makefiles for portability to HP-UX and POSIX correctness.
1811
0cc9542a
PP
1812PP/01 Permit LOOKUP_foo enabling on the make command-line.
1813 Also via indented variable definition in the Makefile.
1814 (Debugging by Oliver Heesakkers).
1815
f7274286
PP
1816PP/02 Restore caching of spamd results with expanded spamd_address.
1817 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1818
7b797365
PP
1819PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1820 Improves build reliability. Fix from: Frank Elsner
1821
caacae52
NM
1822NM/02 Fix wide character breakage in the rfc2047 coding
1823 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1824
09dcaba9
NM
1825NM/03 Allow underscore in dnslist lookups
1826 Fixes bug 1026. Patch from Graeme Fowler
1827
bc19a55b
PP
1828PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1829 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1830
bd4c9759
NM
1831NM/04 Fixed exiqgrep to cope with mailq missing size issue
1832 Fixes bug 943.
1833
b72aab72
PP
1834PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1835 is logged, to avoid truncation. Patch from John Horne.
1836
2fe76745
PP
1837PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1838 Patch from Jakob Hirsch.
1839
76aa570c
PP
1840PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1841 SQL string expansion failure details.
1842 Patch from Andrey Oktyabrski.
1843
f1e5fef5
PP
1844PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1845 Patch from Simon Arlott.
1846
4d805ee9
PP
1847PP/09 New lookups functionality failed to compile on old gcc which rejects
1848 extern declarations in function scope.
1849 Patch from Oliver Fleischmann
1850
cd59ab18
PP
1851PP/10 Use sig_atomic_t for flags set from signal handlers.
1852 Check getgroups() return and improve debugging.
1853 Fixed developed for diagnosis in bug 927 (which turned out to be
1854 a kernel bug).
1855
332f5cf3
PP
1856PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1857 Patch from Mark Zealey.
1858
29cfeb94
PP
1859PP/12 Bugzilla 1056: Improved spamd server selection.
1860 Patch from Mark Zealey.
1861
660242ad
PP
1862PP/13 Bugzilla 1086: Deal with maildir quota file races.
1863 Based on patch from Heiko Schlittermann.
1864
bc4bc4c5
PP
1865PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1866 Patch from Uwe Doering, sign-off by Michael Haardt.
1867
2e64baa9
NM
1868NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1869 variable declaration deep within a block. Bug and patch from
1870 Dennis Davis.
1871
4c04137d 1872PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1873
6bac1a9a
PP
1874PP/16 Make DISABLE_DKIM build knob functional.
1875
552193f0
NM
1876NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1877 Patch by Simon Arlott
baeee2c1 1878
1b587e48
TF
1879TF/03 Fix valgrind.h portability to C89 compilers that do not support
1880 variable argument macros. Our copy now differs from upstream.
1881
aa097c4c 1882
8c07b69f
TF
1883Exim version 4.74
1884-----------------
1885
1886TF/01 Failure to get a lock on a hints database can have serious
1887 consequences so log it to the panic log.
1888
c0ea85ab
TF
1889TF/02 Log LMTP confirmation messages in the same way as SMTP,
1890 controlled using the smtp_confirmation log selector.
1891
0761d44e
TF
1892TF/03 Include the error message when we fail to unlink a spool file.
1893
0a349494
PP
1894DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1895 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1896 for maintaining out-of-tree patches for some time.
1897
1898PP/01 Bugzilla 139: Documentation and portability issues.
1899 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1900 Handle per-OS dynamic-module compilation flags.
1901
fea24b2e
PP
1902PP/02 Let /dev/null have normal permissions.
1903 The 4.73 fixes were a little too stringent and complained about the
1904 permissions on /dev/null. Exempt it from some checks.
1905 Reported by Andreas M. Kirchwitz.
1906
6545de78
PP
1907PP/03 Report version information for many libraries, including
1908 Exim version information for dynamically loaded libraries. Created
1909 version.h, now support a version extension string for distributors
1910 who patch heavily. Dynamic module ABI change.
1911
1670ef10
PP
1912PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1913 privilege escalation vulnerability whereby the Exim run-time user
1914 can cause root to append content of the attacker's choosing to
1915 arbitrary files.
1916
c0886197
PP
1917PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1918 (Wolfgang Breyha)
1919
b7487bce
PP
1920PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1921 If dropping privileges for untrusted macros, we disabled normal logging
1922 on the basis that it would fail; for the Exim run-time user, this is not
1923 the case, and it resulted in successful deliveries going unlogged.
1924 Fixed. Reported by Andreas Metzler.
1925
8c07b69f 1926
97fd1e48 1927Exim version 4.73
ed7f7860 1928-----------------
97fd1e48
PP
1929
1930PP/01 Date: & Message-Id: revert to normally being appended to a message,
1931 only prepend for the Resent-* case. Fixes regression introduced in
1932 Exim 4.70 by NM/22 for Bugzilla 607.
1933
6901c596
PP
1934PP/02 Include check_rfc2047_length in configure.default because we're seeing
1935 increasing numbers of administrators be bitten by this.
1936
a8c8d6b5
JJ
1937JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1938
77bb000f
PP
1939PP/03 Bugzilla 994: added openssl_options main configuration option.
1940
a29e5231
PP
1941PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1942
ec5a0394 1943PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 1944
55c75993
PP
1945PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1946
453a6645 1947PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
1948 without a peer certificate, leading to a segfault because of an
1949 assumption that peers always have certificates. Be a little more
453a6645
PP
1950 paranoid. Problem reported by Martin Tscholak.
1951
8544e77a
PP
1952PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1953 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1954 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
1955 CL also introduces -bmalware, various -d+acl logging additions and
1956 more caution in buffer sizes.
8544e77a 1957
83e029d5
PP
1958PP/09 Implemented reverse_ip expansion operator.
1959
ed7f7860
PP
1960PP/10 Bugzilla 937: provide a "debug" ACL control.
1961
7d9f747b
PP
1962PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1963
4b2241d2
PP
1964PP/12 Bugzilla 973: Implement --version.
1965
10385c15
PP
1966PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1967
dbc4b90d
PP
1968PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1969
532be449
PP
1970PP/15 Bugzilla 816: support multiple condition rules on Routers.
1971
6a8de854 1972PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
1973 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
1974 ignore trailing whitespace.
6a8de854 1975
5dc43717
JJ
1976JJ/02 prevent non-panic DKIM error from being sent to paniclog
1977
1978JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
1979 "exim" to be used
55c75993 1980
3346ab01
PP
1981PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
1982 Notification from Dr Andrew Aitchison.
1983
491fab4c
PP
1984PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
1985 ExtendedDetectionInfo response format.
1986 Notification from John Horne.
1987
13eb9497
PP
1988PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
1989 compatible.
1990
1991PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
1992 XSL and documented dependency on system catalogs, with examples of how
1993 it normally works.
1994
7f36d675
DW
1995DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
1996 access.
1997
c1d94452
DW
1998DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
1999 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2000 configuration file which is writeable by the Exim user or group.
2001
e2f5dc15
DW
2002DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2003 of configuration files to cover files specified with the -C option if
2004 they are going to be used with root privileges, not just the default
2005 configuration file.
2006
cd25e41d
DW
2007DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2008 option (effectively making it always true).
2009
261dc43e
DW
2010DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2011 files to be used while preserving root privileges.
2012
fa32850b
DW
2013DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2014 that rogue child processes cannot use them.
2015
79d4bc3d
PP
2016PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2017 run-time user, instead of root.
2018
43236f35 2019PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2020 Exim run-time user without dropping privileges.
2021
fb08281f
DW
2022DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2023 result string, instead of calling string_vformat() twice with the same
2024 arguments.
3346ab01 2025
74935b98
DW
2026DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2027 for other users. Others should always drop root privileges if they use
2028 -C on the command line, even for a whitelisted configure file.
2029
90b6341f
DW
2030DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2031
57730b52
ML
2032NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2033
66581d1e 2034
465e92cf
JJ
2035Exim version 4.72
2036-----------------
2037
453a6645
PP
2038JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2039 $data_path, and $header_path variables; fixed documentation bugs and
2040 typos
465e92cf 2041
453a6645
PP
2042JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2043 exipick to access non-standard spools, including the "frozen" queue
2044 (Finput)
edae0343 2045
9bd3e22c
NM
2046NM/01 Bugzilla 965: Support mysql stored procedures.
2047 Patch from Alain Williams
2048
bb576ff7
NM
2049NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2050
5a1a5845
NM
2051NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2052 Patch from Andreas Metzler
2053
981a9fad
NM
2054NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2055 Patch from Kirill Miazine
2056
7fc497ee
NM
2057NM/05 Bugzilla 671: Added umask to procmail example.
2058
1a41defa
JJ
2059JJ/03 installed exipick 20100323.0, fixing doc bug
2060
a466095c 2061NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2062 directory. Notification and patch from Dan Rosenberg.
a466095c 2063
94a6bd0b
NM
2064TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2065
2066TK/02 Improve log output when DKIM signing operation fails.
2067
2068MH/01 Treat the transport option dkim_domain as a colon separated
2069 list, not as a single string, and sign the message with each element,
2070 omitting multiple occurences of the same signer.
2071
c1b141a8
NM
2072NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2073 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2074
b26eacf1 2075NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2076 Patch by Simon Arlott
2077
179c5980 2078PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2079 MBX locking. Notification from Dan Rosenberg.
179c5980 2080
9bd3e22c 2081
7c6d71af
NM
2082Exim version 4.71
2083-----------------
2084
7d9f747b 2085TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2086
f013fb92
NM
2087NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2088
0eb8eedd
NM
2089NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2090
663ee6d9
NM
2091NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2092
177ebd9b
NM
2093NM/04 Bugzilla 915: Flag broken perl installation during build.
2094
7c6d71af 2095
210f147e
NM
2096Exim version 4.70
2097-----------------
2098
cdd3bb85 2099TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2100 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2101
2102TK/02 Write list of recipients to X-Envelope-Sender header when building
2103 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2104 Hirsch).
cdd3bb85
TK
2105
2106TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2107 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2108 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2109
2110TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2111 by Mark Daniel Reidel <mr@df.eu>.
2112
210f147e
NM
2113NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2114 When building exim an external PCRE library is now needed -
2115 PCRE is a system library on the majority of modern systems.
2116 See entry on PCRE_LIBS in EDITME file.
2117
deafd5b3
NM
2118NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2119 conversation. Added nologin parameter to request.
7d9f747b 2120 Patch contributed by Kirill Miazine.
deafd5b3 2121
089793a4
TF
2122TF/01 Do not log submission mode rewrites if they do not change the address.
2123
5f16ca82
TF
2124TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2125
dae9d94e 2126NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2127 log files in place. Contributed by Roberto Lima.
dae9d94e 2128
7d9f747b 2129NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2130
06864c44
TF
2131TF/03 Bugzilla 615: When checking the local_parts router precondition
2132 after a local_part_suffix or local_part_prefix option, Exim now
2133 does not use the address's named list lookup cache, since this
2134 contains cached lookups for the whole local part.
2135
65a7d8c3 2136NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2137 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2138
23510047 2139TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2140
7d9f747b 2141NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2142
7d8eec3a 2143NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2144 Patch provided by Jan Srzednicki.
6c588e74 2145
89dec7b6
TF
2146TF/05 Leading white space used to be stripped from $spam_report which
2147 wrecked the formatting. Now it is preserved.
5f28a6e8 2148
a99de90c
TF
2149TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2150 that they are available at delivery time.
2151
e2803e40
TF
2152TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2153
7199e1ee
TF
2154TF/08 TLS error reporting now respects the incoming_interface and
2155 incoming_port log selectors.
2156
e276e04b
TF
2157TF/09 Produce a more useful error message if an SMTP transport's hosts
2158 setting expands to an empty string.
2159
ce552449 2160NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2161 Patch provided by Phil Pennock.
ce552449 2162
e765a0f1 2163NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2164 Patch provided by Richard Godbee.
e765a0f1 2165
4f054c63 2166NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2167 acl_smtp_notquit, added index entry.
4f054c63 2168
7d9f747b
PP
2169NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2170 Patch provided by Eugene Bujak.
24c929a2 2171
7d9f747b
PP
2172NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2173 accept(). Patch provided by Maxim Dounin.
cf73943b 2174
b52bc06e 2175NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2176 Patch provided by Phil Pennock.
b52bc06e 2177
447de4b0
NM
2178NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2179
4c69d561 2180NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2181 Patch provided by Brad "anomie" Jorsch.
4c69d561 2182
d5c39246 2183NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2184 Patch provided by Dean Brooks.
9b989985 2185
0b23848a
TK
2186TK/05 Add native DKIM support (does not depend on external libraries).
2187
8f3414a1 2188NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2189 Patch provided by Graeme Fowler.
e2aacdfd 2190
fb6f955d
NM
2191NM/16 Bugzilla 851: Documentation example syntax fix.
2192
2193NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2194
7d9f747b
PP
2195NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2196 lsearch.
dbb0bf41 2197
7d9f747b
PP
2198NM/19 Bugzilla 745: TLS version reporting.
2199 Patch provided by Phil Pennock.
f3766eb5 2200
7d9f747b
PP
2201NM/20 Bugzilla 167: bool: condition support.
2202 Patch provided by Phil Pennock.
36f12725 2203
7d9f747b
PP
2204NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2205 clients. Patch provided by Phil Pennock.
e6060e2c 2206
7d9f747b
PP
2207NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2208 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2209
7d9f747b
PP
2210NM/23 Bugzilla 687: Fix misparses in eximstats.
2211 Patch provided by Heiko Schlittermann.
d5c13d66 2212
7d9f747b
PP
2213NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2214 Patch provided by Heiko Schlittermann.
b2335c0b 2215
7d9f747b 2216NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2217 plus update to original patch.
f4cd9433 2218
7d9f747b 2219NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2220
7d9f747b
PP
2221NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2222 Patch provided by David Brownlee.
8dc71ab3 2223
7d9f747b 2224NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2225
7d9f747b 2226NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2227
7d9f747b 2228NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2229
7d9f747b 2230NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2231
17792b53 2232NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2233 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2234
7d9f747b
PP
2235NM/33 Bugzilla 898: Transport filter timeout fix.
2236 Patch by Todd Rinaldo.
52383f8f 2237
91576cec 2238NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2239 Patch by Serge Demonchaux.
5ca6d115 2240
7d9f747b
PP
2241NM/35 Bugzilla 39: Base64 decode bug fixes.
2242 Patch by Jakob Hirsch.
baee9eee 2243
7d9f747b 2244NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2245
7d9f747b 2246NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2247
7d9f747b 2248NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2249
7d9f747b 2250NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2251
deafd5b3 2252
47db1125
NM
2253Exim version 4.69
2254-----------------
2255
4b3504d0
TK
2256TK/01 Add preliminary DKIM support. Currently requires a forked version of
2257 ALT-N's libdkim that I have put here:
2258 http://duncanthrax.net/exim-experimental/
2259
2260 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2261 were called 'true' and it seems that C99 defines that as a reserved
2262 keyword to be used with 'bool' variable types. That means you could
2263 not include C99-style headers which use bools without triggering
2264 build errors in sieve.c.
2265
81ea09ca
NM
2266NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2267 as mailq or other aliases. Changed the --help handling significantly
2268 to do whats expected. exim_usage() emits usage/help information.
2269
f13cddcb
SC
2270SC/01 Added the -bylocaldomain option to eximstats.
2271
7d9f747b 2272NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2273
7d9f747b 2274NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2275
7d9f747b 2276NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2277
2278
eb4c0de6
PH
2279Exim version 4.68
2280-----------------
2281
2282PH/01 Another patch from the Sieve maintainer.
2283
6a3bceb1
PH
2284PH/02 When an IPv6 address is converted to a string for single-key lookup
2285 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2286 dots are used instead of colons so that keys in lsearch files need not
2287 contain colons. This was done some time before quoting was made available
2288 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2289 (notated using the quote facility) so as to distinguish them from IPv4
2290 keys. This meant that lookups for IP addresses in host lists did not work
2291 for iplsearch lookups.
2292
2293 This has been fixed by arranging for IPv6 addresses to be expressed with
2294 colons if the lookup type is iplsearch. This is not incompatible, because
2295 previously such lookups could never work.
2296
4c04137d 2297 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2298 ordinary lsearch keys. However, making the change in all cases is
2299 incompatible and would probably break a number of configurations.
2300
2e30fa9d
TK
2301TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2302 version.
2303
0806a9c5
MH
2304MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2305 conversion specification without a maximum field width, thereby enabling
2306 a rogue spamd server to cause a buffer overflow. While nobody in their
2307 right mind would setup Exim to query an untrusted spamd server, an
2308 attacker that gains access to a server running spamd could potentially
2309 exploit this vulnerability to run arbitrary code as the Exim user.
2310
ae276964
TK
2311TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2312 $primary_hostname instead of what libspf2 thinks the hosts name is.
2313
0f2cbd1b
MH
2314MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2315 a directory entry by the name of the lookup key. Previously, if a
2316 symlink pointed to a non-existing file or a file in a directory that
2317 Exim lacked permissions to read, a lookup for a key matching that
2318 symlink would fail. Now it is enough that a matching directory entry
2319 exists, symlink or not. (Bugzilla 503.)
2320
2b85bce7
PH
2321PH/03 The body_linecount and body_zerocount variables are now exported in the
2322 local_scan API.
2323
93655c46
PH
2324PH/04 Added the $dnslist_matched variable.
2325
6c512171
PH
2326PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2327 This means they are set thereafter only if the connection becomes
2328 encrypted.
2329
2330PH/06 Added the client_condition to authenticators so that some can be skipped
2331 by clients under certain conditions.
2332
aa6dc513
PH
2333PH/07 The error message for a badly-placed control=no_multiline_responses left
2334 "_responses" off the end of the name.
2335
a96603a0
PH
2336PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2337
8f240103
PH
2338PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2339 (without spaces) instead of just copying the configuration text.
2340
2341PH/10 Added the /noupdate option to the ratelimit ACL condition.
2342
d677b2f2
PH
2343PH/11 Added $max_received_linelength.
2344
d52120f2
PH
2345PH/12 Added +ignore_defer and +include_defer to host lists.
2346
64f2600a
PH
2347PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2348 way in which PCRE > 7.0 is built.
2349
8669f003
PH
2350PH/14 Implemented queue_only_load_latch.
2351
a4dc33a8
PH
2352PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2353 MAIL command. The effect was to mangle the value on 64-bit systems.
2354
d6a60c0f
PH
2355PH/16 Another patch from the Sieve maintainer.
2356
8f128379
PH
2357PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2358
8932dffe
PH
2359PH/18 If a system quota error occurred while trying to create the file for
2360 a maildir delivery, the message "Mailbox is full" was not appended to the
2361 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2362 only to a quota excession during the actual writing of the file.
d6a60c0f 2363
ddea74fa 2364PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2365 characters?) which causes problems in log lines. The DN values are now
2366 passed through string_printing() before being added to log lines.
2367
ddea74fa 2368PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2369 and InterBase are left for another time.)
2370
ddea74fa
PH
2371PH/21 Added message_body_newlines option.
2372
ce9f225c
PH
2373PH/22 Guard against possible overflow in moan_check_errorcopy().
2374
19897d52
PH
2375PH/23 POSIX allows open() to be a macro; guard against that.
2376
bc64a74d
PH
2377PH/24 If the recipient of an error message contained an @ in the local part
2378 (suitably quoted, of course), incorrect values were put in $domain and
2379 $local_part during the evaluation of errors_copy.
2380
eb4c0de6 2381
b4ed4da0
PH
2382Exim version 4.67
2383-----------------
2384
22ad45c9
MH
2385MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2386 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2387 Jan Srzednicki.
2388
b4ed4da0
PH
2389PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2390 issue a MAIL command.
2391
431b7361
PH
2392PH/02 In an ACL statement such as
2393
2394 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2395
2396 if a client was not listed at all, or was listed with a value other than
2397 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2398 the condition was not true (as it should be), so access was not denied.
2399 The bug was that the ! inversion was incorrectly passed on to the second
2400 item. This has been fixed.
2401
2402PH/03 Added additional dnslists conditions == and =& which are different from
2403 = and & when the dns lookup returns more than one IP address.
2404
83da1223
PH
2405PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2406 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2407
54fc8428
PH
2408PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2409 FSYNC, which compiles an option called disable_fsync that allows for
2410 bypassing fsync(). The documentation is heavily laced with warnings.
2411
34c5e8dd
SC
2412SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2413
bbe15da8
PH
2414PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2415 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2416 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2417 including adding "make clean"; (3) Added -fPIC when compiling the test
2418 dynamically loaded module, to get rid of a warning.
2419
0e8a9471
MH
2420MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2421 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2422 = 0s. The bug is otherwise harmless.
2423
f0872424
PH
2424PH/07 There was a bug in the dovecot authenticator such that the value of
2425 $auth1 could be overwritten, and so not correctly preserved, after a
2426 successful authentication. This usually meant that the value preserved by
2427 the server_setid option was incorrect.
2428
b01dd148
PH
2429PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2430
6bf342e1
PH
2431PH/09 Installed PCRE release 7.0.
2432
273f34d0
PH
2433PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2434 run for batched SMTP input. It is now run at the start of every message
2435 in the batch. While fixing this I discovered that the process information
2436 (output by running exiwhat) was not always getting set for -bs and -bS
2437 input. This is fixed, and it now also says "batched" for BSMTP.
2438
cf8b11a5
PH
2439PH/11 Added control=no_pipelining.
2440
41c7c167
PH
2441PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2442 patch, slightly modified), and move the expansion of helo_data till after
2443 the connection is made in the smtp transport (so it can use these
2444 values).
2445
9c57cbc0
PH
2446PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2447
f3f065bb
PH
2448PH/14 Added log_selector = +pid.
2449
047bdd8c
PH
2450PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2451
0ce9abe6
PH
2452PH/16 Add ${if forany and ${if forall.
2453
0e22dfd1
PH
2454PH/17 Added dsn_from option to vary the From: line in DSNs.
2455
4c590bd1
PH
2456PH/18 Flush SMTP output before performing a callout, unless control =
2457 no_callout_flush is set.
2458
09945f1e
PH
2459PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2460 was true (the default) a successful delivery failed to delete the retry
2461 item, thus causing premature timeout of the address. The bug is now
2462 fixed.
2463
c51b8e75
PH
2464PH/20 Added hosts_avoid_pipelining to the smtp transport.
2465
e28326d8 2466PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2467 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2468 other ACL rejections are.
2469
75b1493f
PH
2470PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2471 with slight modification.
2472
7c5214ec
PH
2473PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2474 draft, changing the syntax and factoring some duplicate code".
2475
4311097e
PH
2476PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2477 for deliveries of the second and subsequent messages over the same SMTP
2478 connection.
2479
29f89cad
PH
2480PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2481 ${reduce, with only minor "tidies".
2482
5e687460
SC
2483SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2484
c3611384
PH
2485PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2486 expansion side effects.
2487
5a11a7b4
PH
2488PH/27 When a message times out after an over-quota error from an Exim-imposed
2489 quota, the bounce message says "mailbox is full". This message was not
2490 being given when it was a system quota that was exceeded. It now should
2491 be the same.
2492
0e20aff9
MH
2493MH/03 Made $recipients available in local_scan(). local_scan() already has
2494 better access to the recipient list through recipients_list[], but
2495 $recipients can be useful in postmaster-provided expansion strings.
2496
ca86f471
PH
2497PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2498 in the case of a MAIL command with additional options following the
2499 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2500 were accidentally chopped off.
2501
a14e5636
PH
2502PH/29 SMTP synchronization checks are implemented when a command is read -
2503 there is a check that no more input is waiting when there shouldn't be
2504 any. However, for some commands, a delay in an ACL can mean that it is
2505 some time before the response is written. In this time, more input might
2506 arrive, invalidly. So now there are extra checks after an ACL has run for
2507 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2508 pipelining has not been advertised.
2509
ec95d1a6
PH
2510PH/30 MH's patch to allow iscntrl() characters to be list separators.
2511
42855d71
PH
2512PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2513 returned in the SMTP response when smtp_return_error_details was false.
2514 This has been fixed.
2515
57c2c631
PH
2516PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2517 instead of the C I/O that was originally supplied, because problems were
2518 reported on Solaris.
2519
58c01c94
PH
2520PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2521 Exim which did not show up earlier: it was assuming that a call to
2522 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2523 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2524 was a macro that became an assignment, so it seemed to work. This has
2525 changed to a proper function call with a void return, hence the compile
2526 error. Exim's code has been fixed.
2527
dee5a20a
PH
2528PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2529 cpus.
2530
d2ee6114
PH
2531PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2532
b2d5182b
PH
2533PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2534
79749a79
PH
2535PH/37 If a message is not accepted after it has had an id assigned (e.g.
2536 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2537 "Completed" line in the log. When some messages of this type were
2538 selected by exigrep, they were listed as "not completed". Others were
2539 picked up by some special patterns. I have improved the selection
2540 criteria to be more general.
79749a79 2541
c456d9bb
PH
2542PH/38 The host_find_failed option in the manualroute router can now be set
2543 to "ignore", to completely ignore a host whose IP address cannot be
2544 found. If all hosts are ignored, the behaviour is controlled by the new
2545 host_all_ignored option.
2546
cd9868ec
PH
2547PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2548 homing or because of multiple MX records with /mx) generated more than
2549 one IP address, and the following item turned out to be the local host,
2550 all the secondary addresses of the first item were incorrectly removed
2551 from the list, along with the local host and any following hosts (which
2552 is what is supposed to happen).
2553
ebeaf996
PH
2554PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2555 whoever called Exim into the -H file. In the case of the daemon it was
2556 behaving confusingly. When first started, it used values for whoever
2557 started the daemon, but after a SIGHUP it used the Exim user (because it
2558 calls itself on a restart). I have changed the code so that it now always
2559 uses the Exim user.
2560
2679d413
PH
2561PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2562 message are rejected with the same error (e.g. no authentication or bad
2563 sender address), and a DATA command is nevertheless sent (as can happen
2564 with PIPELINING or a stupid MUA), the error message that was given to the
2565 RCPT commands is included in the rejection of the DATA command. This is
2566 intended to be helpful for MUAs that show only the final error to their
2567 users.
2568
84024b72
PH
2569PH/42 Another patch from the Sieve maintainer.
2570
8005d38e
SC
2571SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2572 Eximstats - Fixed some broken HTML links and added missing column headers
2573 (Jez Hancock).
2574 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2575 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2576
3298c6c6
SC
2577SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2578
a43a27c5
PH
2579PH/43 Yet another patch from the Sieve maintainer.
2580
58eb016e 2581PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2582 the response to the final '.' that terminates a message, but only in the
2583 case where the client has not sent further data following the '.'
2584 (unfortunately, this is allowed). However, in many cases there won't be
2585 any further data because there won't be any more messages to send. A call
2586 to select() can be used: if it shows that the input is "ready", there is
2587 either input waiting, or the socket has been closed. An attempt to read
2588 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2589 would have sent an OK response which the client would never have see.
563b63fa
PH
2590 This could lead to message repetition. This fix should cure that, at
2591 least in a lot of common cases.
58eb016e 2592
b43a74ea
PH
2593PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2594 advertised in response to EHLO.
2595
b4ed4da0 2596
5dd1517f
PH
2597Exim version 4.66
2598-----------------
2599
2600PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2601 fixed by 4.65/MH/01 (is this a record?) are fixed:
2602
2603 (i) An empty string was always treated as zero by the numeric comparison
2604 operators. This behaviour has been restored.
2605
2606 (ii) It is documented that the numeric comparison operators always treat
2607 their arguments as decimal numbers. This was broken in that numbers
2608 starting with 0 were being interpreted as octal.
2609
2610 While fixing these problems I realized that there was another issue that
2611 hadn't been noticed. Values of message_size_limit (both the global option
2612 and the transport option) were treated as octal if they started with 0.
2613 The documentation was vague. These values are now always treated as
2614 decimal, and I will make that clear in the documentation.
2615
2616
93cfa765
TK
2617Exim version 4.65
2618-----------------
2619
2620TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2621 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2622 versions. (#438)
2623
d6066548
MH
2624MH/01 Don't check that the operands of numeric comparison operators are
2625 integers when their expansion is in "skipping" mode (fixes bug
2626 introduced by 4.64-PH/07).
2627
4362ff0d
PH
2628PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2629 child addresses, Exim now panics and dies. Previously, because the count
2630 is held in a short int, deliveries were likely to be lost. As such a
2631 large number of recipients for a single message is ridiculous
2632 (performance will be very, very poor), I have chosen to impose a limit
2633 rather than extend the field.
2634
93cfa765 2635
944e9e9c
TF
2636Exim version 4.64
2637-----------------
aa41d2de 2638
21d74bd9
TK
2639TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2640 leftover -K file (the existence of which was triggered by #402).
2641 While we were at it, introduced process PID as part of the -K
2642 filename. This should rule out race conditions when creating
2643 these files.
2644
2645TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2646 processing considerably. Previous code took too long for large mails,
2647 triggering a timeout which in turn triggers #401.
2648
2649TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2650 in the DK code in transports.c. sendfile() is not really portable,
2651 hence the _LINUX specificness.
944e9e9c
TF
2652
2653TF/01 In the add_headers option to the mail command in an Exim filter,
2654 there was a bug that Exim would claim a syntax error in any
2655 header after the first one which had an odd number of characters
2656 in the field name.
2657
2b1c6e3a
PH
2658PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2659 callout verification, Exim cached a "reject" for the entire domain. This
2660 is correct for most verifications, but it is not correct for a recipient
2661 verification with use_sender or use_postmaster set, because in that case
2662 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2663 case of MAIL FROM:<> rejection from other early rejections (e.g.
2664 rejection of HELO). When verifying a recipient using a non-null MAIL
2665 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2666 Whatever the result of the callout, the value of the domain cache is
2667 left unchanged (for any other kind of callout, getting as far as trying
2668 RCPT means that the domain itself is ok).
2669
1f872c80
PH
2670PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2671 gcc 4.1.1 threw up.
2672
2673PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2674 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2675 session, the daemon ignores ECONNECT errors and logs others; it now
2676 ignores EPIPE as well.
2677
d203e649
PH
2678PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2679 (quoted-printable decoding).
2680
cc2ed8f7 2681PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2682 later the small subsequent patch to fix an introduced bug.
f951fd57 2683
ddfcd446
PH
2684PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2685
d45b1de8
PH
2686PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2687
2688PH/08 An error is now given if message_size_limit is specified negative.
2689
38a0a95f 2690PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2691 to be given (somewhat) arbitrary names.
38a0a95f 2692
a2405d83
JJ
2693JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2694 in 4.64-PH/09.
2695
2696JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2697 miscellaneous code fixes
2698
6ea85e9a
PH
2699PH/10 Added the log_reject_target ACL modifier to specify where to log
2700 rejections.
2701
26da7e20
PH
2702PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2703 hostname. This is wrong, because it relates to the incoming message (and
2704 probably the interface on which it is arriving) and not to the outgoing
2705 callout (which could be using a different interface). This has been
2706 changed to use the value of the helo_data option from the smtp transport
2707 instead - this is what is used when a message is actually being sent. If
2708 there is no remote transport (possible with a router that sets up host
2709 addresses), $smtp_active_hostname is used.
6ea85e9a 2710
14aa5a05 2711PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2712 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2713 (a) The code assumed that strncpy() returns a negative number on buffer
2714 overflow, which isn't the case. Replaced with Exim's string_format()
2715 function.
2716 (b) There were several signed/unsigned issues. I just did the minimum
2717 hacking in of casts. There is scope for a larger refactoring.
2718 (c) The code used strcasecmp() which is not a standard C function.
2719 Replaced with Exim's strcmpic() function.
2720 (d) The code set only $1; it now sets $auth1 as well.
2721 (e) A simple test gave the error "authentication client didn't specify
2722 service in request". It would seem that Dovecot has changed its
2723 interface. Fortunately there's a specification; I followed it and
2724 changed what the client sends and it appears to be working now.
2725
ff75a1f7
PH
2726PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2727 decoding.
2728
e6f6568e
PH
2729PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2730 address A is aliased to B and C, where B exists and C does not. Without
2731 -v the output is "A verified" because verification stops after a
2732 successful redirection if more than one address is generated. However,
2733 with -v the child addresses are also verified. Exim was outputting "A
2734 failed to verify" and then showing the successful verification for C,
2735 with its parentage. It now outputs "B failed to verify", showing B's
2736 parentage before showing the successful verification of C.
2737
d6f6e0dc
PH
2738PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2739 look up a TXT record in a specific list after matching in a combined
2740 list.
2741
322050c2
PH
2742PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2743 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2744 they consult the DNS. I had assumed they would set it the way they
2745 wanted; and indeed my experiments on Linux seem to show that in some
2746 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2747 To be on the safe side, however, I have now made the interface to
2748 host_find_byname() similar to host_find_bydns(), with an argument
2749 containing the DNS resolver options. The host_find_byname() function now
2750 sets these options at its start, just as host_find_bydns() does. The smtp
2751 transport options dns_qualify_single and dns_search_parents are passed to
2752 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2753 of host_find_byname() use the default settings of RES_DEFNAMES
2754 (qualify_single) but not RES_DNSRCH (search_parents).
2755
08955dd3
PH
2756PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2757 spool_read_header() do less string testing, by means of a preliminary
2758 switch on the second character of optional "-foo" lines. (This is
2759 overdue, caused by the large number of possibilities that now exist.
2760 Originally there were few.) While I was there, I also converted the
2761 str(n)cmp tests so they don't re-test the leading "-" and the first
2762 character, in the hope this might squeeze out yet more improvement.
2763
1eccaa59
PH
2764PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2765 flag allowing group syntax was set by the header_syntax check but not
2766 turned off, possible causing trouble later; (2) The flag was not being
2767 set at all for the header_verify test, causing "group"-style headers to
2768 be rejected. I have now set it in this case, and also caused header_
2769 verify to ignore an empty address taken from a group. While doing this, I
2770 came across some other cases where the code for allowing group syntax
2771 while scanning a header line wasn't quite right (mostly, not resetting
2772 the flag correctly in the right place). These bugs could have caused
2773 trouble for malformed header lines. I hope it is now all correct.
2774
602e59e5
PH
2775PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2776 with the "reply" argument non-NULL. The code, however (which originally
2777 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2778 but it didn't always do it. This confused somebody who was copying the
2779 code for some other use. I have removed all the tests.
2780
411ef850
PH
2781PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2782 feature that was used to support insecure browsers during the U.S. crypto
2783 embargo. It requires special client support, and Exim is probably the
2784 only MTA that supported it -- and would never use it because real RSA is
2785 always available. This code has been removed, because it had the bad
2786 effect of slowing Exim down by computing (never used) parameters for the
2787 RSA_EXPORT functionality.
2788
7befa435
PH
2789PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2790 authenticator to fail if there's a tab character in the incoming data
2791 (there should never be unless someone is messing about, as it's supposed
2792 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2793 if the connection is using TLS or if the remote IP is the same as the
2794 local IP, and the "valid-client-cert option" if a client certificate has
2795 been verified.
2796
48da4259 2797PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2798 authenticators. This can be used for authorization after authentication
2799 succeeds. (In the case of plaintext, it servers for both authentication
2800 and authorization.)
2801
48da4259
PH
2802PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2803 if any retry times were supplied.
2804
d1d5595c
PH
2805PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2806 connection, where there is no client IP address to check. In this
2807 situation, the verify now always succeeds.
2808
0ef732d9
PH
2809PH/25 Applied John Jetmore's -Mset patch.
2810
328895cc
PH
2811PH/26 Added -bem to be like -Mset, but loading a message from a file.
2812
fd700877
PH
2813PH/27 In a string expansion for a processed (not raw) header when multiple
2814 headers of the same name were present, leading whitespace was being
2815 removed from all of them, but trailing whitespace was being removed only
2816 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2817 before concatenation. Completely empty headers in a concatenation (as
2818 before) are ignored.
fd700877 2819
8dce1a6f
PH
2820PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2821 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2822
17af4a17
PH
2823PH/29 [Removed. This was a change that I later backed out, and forgot to
2824 correct the ChangeLog entry (that I had efficiently created) before
2825 committing the later change.]
f6c332bd
PH
2826
2827PH/30 Exim was sometimes attempting to deliver messages that had suffered
2828 address errors (4xx response to RCPT) over the same connection as other
2829 messages routed to the same hosts. Such deliveries are always "forced",
2830 so retry times are not inspected. This resulted in far too many retries
2831 for the affected addresses. The effect occurred only when there were more
2832 hosts than the hosts_max_try setting in the smtp transport when it had
2833 the 4xx errors. Those hosts that it had tried were not added to the list
2834 of hosts for which the message was waiting, so if all were tried, there
2835 was no problem. Two fixes have been applied:
2836
2837 (i) If there are any address or message errors in an SMTP delivery, none
2838 of the hosts (tried or untried) are now added to the list of hosts
2839 for which the message is waiting, so the message should not be a
2840 candidate for sending over the same connection that was used for a
2841 successful delivery of some other message. This seems entirely
2842 reasonable: after all the message is NOT "waiting for some host".
2843 This is so "obvious" that I'm not sure why it wasn't done
2844 previously. Hope I haven't missed anything, but it can't do any
2845 harm, as the worst effect is to miss an optimization.
2846
2847 (ii) If, despite (i), such a delivery is accidentally attempted, the
2848 routing retry time is respected, so at least it doesn't keep
2849 hammering the server.
2850
c1114884
PH
2851PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2852 in ${readsocket because some servers need this prod.
2853
7a0743eb
PH
2854PH/32 Added some extra debug output when updating a wait-xxx database.
2855
0d85fa3f
PH
2856PH/33 The hint "could be header name not terminated by colon", which has been
2857 given for certain expansion errors for a long time, was not being given
2858 for the ${if def:h_colon_omitted{... case.
2859
1bf43b78
PH
2860PH/34 The spec says: "With one important exception, whenever a domain list is
2861 being scanned, $domain contains the subject domain." There was at least
2862 one case where this was not true.
2863
520de300
PH
2864PH/35 The error "getsockname() failed: connection reset by peer" was being
2865 written to the panic log as well as the main log, but it isn't really
2866 panic-worthy as it just means the connection died rather early on. I have
2867 removed the panic log writing for the ECONNRESET error when getsockname()
2868 fails.
2869
48c7f9e2
PH
2870PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2871 runs only) independently of the message's sender address. This meant
2872 that, if the 4xx error was in fact related to the sender, a different
2873 message to the same recipient with a different sender could confuse
4c04137d 2874 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2875 server, but other circumstances could also provoke similar problems.
2876 I have changed the default so that the retry time for these errors is now
2877 based a combination of the sender and recipient addresses. This change
2878 can be overridden by setting address_retry_include_sender=false in the
2879 smtp transport.
2880
99ea1c86
PH
2881PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2882 remote server are returned as part of bounce messages. This was not
2883 happening for LMTP over a pipe (the lmtp transport), but now it is the
2884 same for both kinds of LMTP.
2885
a2042e78
PH
2886PH/38 Despite being documented as not happening, Exim was rewriting addresses
2887 in header lines that were in fact CNAMEs. This is no longer the case.
2888
4fbcfc2e
PH
2889PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2890 and queue runs started by the daemon processed all messages. This has
2891 been fixed so that -R and -S can now usefully be given with -q<time>.
2892
aa41d2de
PH
2893PH/40 Import PCRE release 6.7 (fixes some bugs).
2894
af561417
PH
2895PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2896
3cc66b45
PH
2897PH/42 Give an error if -q is specified more than once.
2898
194cc0e4
PH
2899PH/43 Renamed the variables $interface_address and $interface_port as
2900 $received_ip_address and $received_port, to make it clear that these
2901 values apply to message reception, and not to the outgoing interface when
2902 a message is delivered. (The old names remain recognized, of course.)
2903
a401ddaa
PH
2904PH/44 There was no timeout on the connect() call when using a Unix domain
2905 socket in the ${readsocket expansion. There now is.
2906
4e88a19f
PH
2907PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2908 be meaningful with "accept".
2909
d7d7b289
SC
2910SC/01 Eximstats V1.43
2911 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2912
2913SC/02 Eximstats V1.44
2914 Use a glob alias rather than an array ref in the generated
2915 parser. This improves both readability and performance.
2916
2917SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2918 Collect SpamAssassin and rejection statistics.
2919 Don't display local sender or destination tables unless
2920 there is data to show.
2921 Added average volumes into the top table text output.
2922
2923SC/04 Eximstats V1.46
2924 Collect data on the number of addresses (recipients)
2925 as well as the number of messages.
2926
2927SC/05 Eximstats V1.47
2928 Added 'Message too big' to the list of mail rejection
2929 reasons (thanks to Marco Gaiarin).
2930
2931SC/06 Eximstats V1.48
2932 Mainlog lines which have GMT offsets and are too short to
2933 have a flag are now skipped.
2934
2935SC/07 Eximstats V1.49 (Alain Williams)
2936 Added the -emptyok flag.
2937
2938SC/08 Eximstats V1.50
2939 Fixes for obtaining the IP address from reject messages.
2940
0ea2a468
JJ
2941JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2942 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 2943 whitespace changes from 4.64-PH/27
0ea2a468
JJ
2944
2945JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2946 match 4.64-PH/13
2947
2948JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2949 are found, allow negative numbers in numeric criteria)
2950
2951JJ/06 exipick.20061117.2, added new $message_body_missing variable
2952
2953JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2954 to match changes made in 4.64-PH/43
2955
8a10f5a4
PH
2956PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2957
30e18802
PH
2958PH/47 Put in an explicit test for a DNS lookup of an address record where the
2959 "domain" is actually an IP address, and force a failure. This locks out
2960 those revolvers/nameservers that support "A-for-A" lookups, in
2961 contravention of the specifications.
2962
55728a4f
PH
2963PH/48 When a host name was looked up from an IP address, and the subsequent
2964 forward lookup of the name timed out, the host name was left in
2965 $sender_host_name, contrary to the specification.
d7d7b289 2966
d7837193
PH
2967PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2968 restricted to single-key lookups, Exim was not diagnosing an error if
2969 * or *@ was used with a query-style lookup.
2970
87054a31
PH
2971PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2972
ea2c01d2
MH
2973MH/01 local_scan ABI version incremented to 1.1. It should have been updated
2974 long ago, but noone interested enough thought of it. Let's just say that
2975 the "1.1" means that there are some new functions that weren't there at
2976 some point in the past.
2977
e4fa6968
PH
2978PH/51 Error processing for expansion failure of helo_data from an smtp
2979 transport during callout processing was broken.
2980
56f5d9bd
PH
2981PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
2982 tested/used via the -bh/-bhc/-bs options.
2983
922e1c28
PH
2984PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
2985 bug, fixed in subsequent PCRE releases).
2986
21eb6e72
PH
2987PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
2988 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
2989
a0540757
PH
2990PH/55 Check for a ridiculously long file name in exim_dbmbuild.
2991
944e9e9c 2992
478be7b0
SC
2993Exim version 4.63
2994-----------------
2995
2996SC/01 Use a glob alias rather than an array ref in eximstats generated
2997 parser. This improves both readability and performance.
2998
2999SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3000 Don't display local sender or destination tables in eximstats unless
3001 there is data to show.
3002 Added average volumes into the eximstats top table text output.
3003
3004SC/03 Collect data on the number of addresses (recipients) as well
3005 as the number of messages in eximstats.
3006
2b965a65
TF
3007TF/01 Correct an error in the documentation for the redirect router. Exim
3008 does (usually) call initgroups() when daemonizing.
478be7b0 3009
45b91596
PH
3010TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3011 with consistent privilege compared to when running as a daemon.
478be7b0 3012
c59f5781
TF
3013TF/03 Note in the spec that $authenticated_id is not set for local
3014 submissions from trusted users.
3015
90fc3069
TF
3016TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3017 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3018
6083aca0
TF
3019TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3020 by adding some example configuration directives to the default
3021 configuration file. A little bit of work is required to uncomment the
3022 directives and define how usernames and passwords are checked, but
3023 there is now a framework to start from.
3024
765b530f
PH
3025PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3026 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3027 without this. I don't know how relevant this is to other LDAP libraries.
3028
4e167a8c
PH
3029PH/02 Add the verb name to the "unknown ACL verb" error.
3030
4608d683
PH
3031PH/03 Magnus Holmgren's patch for filter_prepend_home.
3032
b8dc3e4a
PH
3033PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3034
5418e93b
PH
3035PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3036 directory not expanded when it should be if an expanded home directory
3037 was set for the address (which is overridden by the transport).
3038
b4a9bda2
PH
3039PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3040 libradius.
3041
45b91596
PH
3042PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3043 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3044 because it is too late at that time, and has no effect.
3045
5547e2c5
PH
3046PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3047 security issue with \' (bugzilla #107). I could not use the
3048 PQescapeStringConn() function, because it needs a PGconn value as one of
3049 its arguments.
3050
dbcef0ea
PH
3051PH/08 When testing addresses using -bt, indicate those final addresses that
3052 are duplicates that would not cause an additional delivery. At least one
3053 person was confused, thinking that -bt output corresponded to deliveries.
3054 (Suppressing duplicates isn't a good idea as you lose the information
3055 about possibly different redirections that led to the duplicates.)
3056
25257489
PH
3057PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3058 systems where poll() doesn't work, in particular OS X.
3059
c816d124
PH
3060PH/10 Added more information to debugging output for retry time not reached.
3061
a9ccd69a
PH
3062PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3063 operations in malware.c.
3064
75fa1910
PH
3065PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3066 signatures.
3067
a7d7aa58
PH
3068PH/13 If write_rejectlog was set false when logging was sent to syslog with
3069 syslog_duplication set false, log lines that would normally be written
3070 both the the main log and to the reject log were not written to syslog at
3071 all.
3072
42119b09
PH
3073PH/14 In the default configuration, change the use of "message" in ACL warn
3074 statements to "add_header".
3075
41609df5
PH
3076PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3077 not followed by a command (e.g. "seen endif").
3078
a5bd321b
PH
3079PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3080 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3081 latter.
3082
e85a7ad5 3083PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3084 so that it is now:
3085
e85a7ad5
PH
3086 ${if or { \
3087 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3088 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3089 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3090 }{no}{yes}}
3091
e85a7ad5
PH
3092 The Auto-Submitted: and various List- headers are standardised, whereas I
3093 don't think Precedence: ever was.
5dff5817 3094
d8fe1c03
PH
3095PH/18 Refactored debugging code in route_finduser() to show more information,
3096 in particular, the error code if getpwnam() issues one.
3097
16282d2b
PH
3098PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3099 This is apparently needed in addition to the PH/07 change above to avoid
3100 any possible encoding problems.
3101
35d40a98
PH
3102PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3103 but not after initializing Perl.
3104
034d99ab
PH
3105PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3106 output them only if debugging. By default they are written stderr,
3107 apparently, which is not desirable.
3108
6ec97b1b
PH
3109PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3110 queries.
3111
e22ca4ac
JJ
3112JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3113 --not options
3114
3115JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3116
33d73e3b
PH
3117PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3118 authenticated or an ident call has been made. Suppress the default
3119 values for $authenticated_id and $authenticated_sender (but permit -oMai
3120 and -oMas) when testing with -bh.
3121
9ecb03f3
PH
3122PH/24 Re-jigged the order of the tests in the default configuration so that the
3123 tests for valid domains and recipients precede the DNS black list and CSA
3124 tests, on the grounds that those ones are more expensive.
3125
084efe8d
PH
3126PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3127 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3128 This bug exists in every version of Exim that I still have, right back to
3129 0.12.
3130
366fc9f0
PH
3131PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3132 However, an attempt to turn on case-sensitivity in a regex key by
3133 including (?-i) didn't work because the subject string was already
3134 lowercased, and the effects were non-intuitive. It turns out that a
3135 one-line patch can be used to allow (?-i) to work as expected.
3136
c59f5781 3137
c887c79e
TF
3138Exim version 4.62
3139-----------------
3140
3141TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3142 other effects) broke the use of negated acl sub-conditions.
3143
1cce3af8
PH
3144PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3145 patch).
3146
afb3eaaf
PH
3147PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3148 "Deny" causes Exim to reject the incoming connection with a 554 error.
3149 Unfortunately, if there is a major crisis, such as a disk failure,
3150 tcp-wrappers gives "deny", whereas what one would like would be some
3151 kind of temporary error. A kludge has been added to help with this.
3152 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3153 554 error is used if errno is still zero or contains ENOENT (which occurs
3154 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3155 451 error is used.
3156
e173618b
PH
3157PH/03 Add -lutil to the default FreeBSD LIBS setting.
3158
dd16e114
PH
3159PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3160 errors. Otherwise a message that provokes a temporary error (when other
3161 messages do not) can cause a whole host to time out.
3162
f7fd3850
PH
3163PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3164 addresses were routed directly to files or pipes from a redirect router.
3165 File deliveries just didn't batch; pipe deliveries might have suffered
3166 odd errors.
3167
d87df92c
PH
3168PH/06 A failure to get a lock for a hints database would erroneously always say
3169 "Failed to get write lock", even when it was really a read lock.
3170
7e9f683d
PH
3171PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3172 of 0600. This has been changed to use the value of the lockfile_mode
3173 option (which defaults to 0600).
3174
bfad5236
PH
3175PH/08 Applied small patch from the Sieve maintainer.
3176
01c490df
PH
3177PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3178 folder from quota calculations, a direct delivery into this folder messed
3179 up the contents of the maildirsize file. This was because the regex was
3180 used only to exclude .Trash (or whatever) when the size of the mailbox
3181 was calculated. There was no check that a delivery was happening into an
3182 excluded directory. This bug has been fixed by ignoring all quota
3183 processing for deliveries into excluded directories.
3184
d6629cdc
PH
3185PH/10 Added the maildirfolder_create_regex option to appendfile.
3186
1cce3af8 3187
214e2000
PH
3188Exim version 4.61
3189-----------------
3190
3191PH/01 The code for finding all the local interface addresses on a FreeBSD
3192 system running IPv6 was broken. This may well have applied to all BSD
3193 systems, as well as to others that have similar system calls. The broken
3194 code found IPv4 interfaces correctly, but gave incorrect values for the
3195 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3196 that it would not match correctly against @[] and not recognize the IPv6
3197 addresses as local.
3198
f9daeae0
PH
3199PH/02 The ipliteral router was not recognizing addresses of the form user@
3200 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3201
7e66e54d
PH
3202PH/03 Added disable_ipv6.
3203
c8ea1597
PH
3204PH/04 Changed $reply_address to use the raw form of the headers instead of the
3205 decoded form, because it is most often used to construct To: headers
3206 lines in autoreplies, and the decoded form may well be syntactically
3207 invalid. However, $reply_address has leading white space removed, and all
3208 newlines turned into spaces so that the autoreply transport does not
3209 grumble.
3210
911f6fde
PH
3211PH/05 If group was specified without a user on a router, and no group or user
3212 was specified on a transport, the group from the router was ignored.
3213
47ca6d6c
PH
3214PH/06 Increased the number of ACL variables to 20 of each type, and arranged
3215 for visible compile-time settings that can be used to change these
3216 numbers, for those that want even more. Backwards compatibility with old
3217 spool files has been maintained. However, going back to a previous Exim
3218 release will lost any variables that are in spool files.
3219
ed0e9820
PH
3220PH/07 Two small changes when running in the test harness: increase delay when
3221 passing a TCP/IP connection to a new process, in case the original
3222 process has to generate a bounce, and remove special handling of
3223 127.0.0.2 (sic), which is no longer necessary.
3224
eff37e47
PH
3225PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
3226 be the same on different OS.
3227
1921d2ea
PH
3228PH/09 Moved a debug statement in filter processing to avoid a race problem when
3229 testing.
3230
b3f69ca8
JJ
3231JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
3232 whether --show-vars was specified or not
3233
3234JJ/02 exipick: Added support for new ACL variable spool format introduced
3235 in 4.61-PH/06
3236
424a1c63
PH
3237PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
3238 syntactically invalid From: or Reply-to: line, and a filter used this to
3239 generate an autoreply, and therefore failed to obtain an address for the
3240 autoreply, Exim could try to deliver to a non-existent relative file
3241 name, causing unrelated and misleading errors. What now happens is that
3242 it logs this as a hard delivery error, but does not attempt to create a
3243 bounce message.
3244
7a100415
PH
3245PH/11 The exinext utility has a -C option for testing purposes, but although
3246 the given file was scanned by exinext itself; it wasn't being passed on
3247 when Exim was called.
3248
19b9dc85
PH
3249PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
3250 an end-of-file indication when reading a command response.
3251
309bd837
PH
3252PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
3253 compiled. In many other places in Exim, IPv6 addresses are always
3254 recognized, so I have changed this. It also means that IPv4 domain
3255 literals of the form [IPV4:n.n.n.n] are now always recognized.
3256
59e82a2a
PH
3257PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
3258 used if the router is not running as root, for example, when verifying at
3259 ACL time, or when using -bh. The debugging output from this situation was
3260 non-existent - all you got was a failure to exec. I have made two
3261 changes:
3262
3263 (a) Failures to set uid/gid, the current directory, or a process leader
3264 in a subprocess such as that created by queryprogram now generate
4c04137d 3265 suitable debugging output when -d is set.