ARC: add independent-source testcase. Fix signatures by not line-terminating
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
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
0800ef83
GF
18GF/02 Catch and remove uninitialized value warning in exiqsumm
19 Check for existence of @ARGV before looking at $ARGV[0]
20
459fca58
JH
21JH/01 Replace the store_release() internal interface with store_newblock(),
22 which internalises the check required to safely use the old one, plus
23 the allocate and data copy operations duplicated in both (!) of the
24 extant use locations.
25
944e8b37
JH
26JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
27 modifier. This matches the restriction on the commandline.
28
bbfb5dcd
JH
29JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
30 Previously only the last row was returned.
31
a05d3e34
JH
32JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
33 we assumed that tags in the header were well-formed, and parsed the
34 element content after inspecting only the first char of the tag.
35 Assumptions at that stage could crash the receive process on malformed
36 input.
37
ce93c6d8
JH
38JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
39 While running the DKIM ACL we operate on the Permanent memory pool so that
40 variables created with "set" persist to the DATA ACL. Also (at any time)
41 DNS lookups that fail create cache records using the Permanent pool. But
42 expansions release any allocations made on the current pool - so a dnsdb
43 lookup expansion done in the DKIM ACL releases the memory used for the
44 DNS negative-cache, and bad things result. Solution is to switch to the
45 Main pool for expansions.
46 While we're in that code, add checks on the DNS cache during store_reset,
47 active in the testsuite.
48 Problem spotted, and debugging aided, by Wolfgang Breyha.
49
2577f55f
JH
50JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
51 When none of the hosts presented to a transport match an already-open
52 connection, close it and proceed with the list. Previously we would
53 queue the message. Spotted by Lena with Yahoo, probably involving
54 round-robin DNS.
55
5b6f7658
JH
56JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
57 Previously a spurious "250 OK id=" response was appended to the proper
58 failure response.
59
c11d665d
JH
60JH/08 The "support for" informational output now, which built with Content
61 Scanning support, has a line for the malware scanner interfaces compiled
62 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
63
64JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
65 by the template makefile "src/EDITME". The "STREAM" support for an older
66 ClamAV interface method is removed.
c11d665d 67
ba0e37b1
JH
68JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
69 rows affected is given instead).
70
96508de1
JH
71JH/11 The runtime Berkeley DB library version is now additionally output by
72 "exim -d -bV". Previously only the compile-time version was shown.
73
06fdb9f7
JH
74JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
75 SMTP connection. Previously, when one had more receipients than the
76 first, an abortive onward connection was made. Move to full support for
77 multiple onward connections in sequence, handling cutthrough connection
78 for all multi-message initiating connections.
79
f83a760f
JH
80JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
81 routers. Previously, a multi-recipient message would fail to match the
82 onward-connection opened for the first recipient, and cause its closure.
83
f1fed05b
JH
84JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
85 a timeout on read on a GnuTLS initiating connection, resulting in the
86 initiating connection being dropped. This mattered most when the callout
87 was marked defer_ok. Fix to keep the two timeout-detection methods
88 separate.
89
051d5efa
JH
90JH/15 Relax results from ACL control request to enable cutthrough, in
91 unsupported situations, from error to silently (except under debug)
92 ignoring. This covers use with PRDR, frozen messages, queue-only and
93 fake-reject.
94
cf3cd306
HSHR
95HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
96
744976d4
JH
97JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
98 metadata, resulting in a crash in free().
99
aab9a843 100PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 101 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 102 Broken also in d185889f4, with init system revamp.
7be14582 103
83d2a861
JH
104JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
105 Previously we abruptly closed the connection after reading a malware-
106 found indication; now we go on to read the "scan ok" response line,
107 and send a quit.
108
6741531c
JH
109JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
110 ACL. Previously, a crash would result.
111
85e03244
JH
112JH/19 Speed up macro lookups during configuration file read, by skipping non-
113 macro text after a replacement (previously it was only once per line) and
114 by skipping builtin macros when searching for an uppercase lead character.
115
c0635b6d
JH
116JH/20 DANE support moved from Experimental to mainline. The Makefile control
117 for the build is renamed.
118
b808677c
JH
119JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
120 was allocated for every new TLS startup, meaning one per message. Fix
121 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
122
6678c382
JH
123JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
124 reported the original. Fix to report (as far as possible) the ACL
125 result replacing the original.
126
dec766a1
WB
127JH/23 Fix memory leak during multi-message connections using STARTTLS under
128 OpenSSL. Certificate information is loaded for every new TLS startup,
129 and the resources needed to be freed.
130
15ae19f9
JH
131JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
132
e6532c4a
JH
133JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
134 was not propagated.
135
2556b3c6
SA
136JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
137 DATA response info to the (existing) per-recipient response info for
138 the "C=" log element. It can have useful tracking info from the
139 destination system. Patch from Simon Arlott.
140
fc8cd529
JH
141JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
142 length value. Previously this would segfault.
143
71bb51e0
HSHR
144HS/02 Support Avast multiline protoocol, this allows passing flags to
145 newer versions of the scanner.
146
e04bfa34
JH
147JH/28 Ensure that variables possibly set during message acceptance are marked
148 dead before release of memory in the daemon loop. This stops complaints
149 about them when the debug_store option is enabled. Discovered specifically
150 for sender_rate_period, but applies to a whole set of variables.
4b4856ff 151 Do the same for the queue-runner loop, for variables set from spool
c679ee08
JH
152 message files. Do the same for the SMTP per-message loop, for certain
153 variables indirectly set in ACL operations.
e04bfa34 154
ecce6d9a
JH
155JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
156 as a multi-recipient message from a mailinglist manager). The coding had
157 an arbitrary cutoff number of characters while checking for more input;
158 enforced by writing a NUL into the buffer. This corrupted long / fast
159 input. The problem was exposed more widely when more pipelineing of SMTP
160 responses was introduced, and one Exim system was feeding another.
161 The symptom is log complaints of SMTP syntax error (NUL chars) on the
162 receiving system, and refused recipients seen by the sending system
163 (propating to people being dropped from mailing lists).
164 Discovered and pinpointed by David Carter.
165
c9cf9ac4
JH
166JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
167 replaced by the ${authresults } expansion.
168
b3b37076
JH
169JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
170
830832c9
HSHR
171HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
172 allows proper process termination in container environments.
173
bbfb5dcd 174
acfc18c3
PP
175Exim version 4.90
176-----------------
177
178JH/01 Rework error string handling in TLS interface so that the caller in
179 more cases is responsible for logging. This permits library-sourced
180 string to be attached to addresses during delivery, and collapses
181 pairs of long lines into single ones.
182
856d1e16
PP
183PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
184 during configuration. Wildcards are allowed and expanded.
185
b9df1829
JH
186JH/02 Rework error string handling in DKIM to pass more info back to callers.
187 This permits better logging.
188
875512a3
JH
189JH/03 Rework the transport continued-connection mechanism: when TLS is active,
190 do not close it down and have the child transport start it up again on
191 the passed-on TCP connection. Instead, proxy the child (and any
192 subsequent ones) for TLS via a unix-domain socket channel. Logging is
193 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 194 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 195
fc3f96af
JH
196JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
197 identical IP addresses on different listening ports. Will also affect
198 "exiwhat" output.
199
98913c8e
BK
200PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
201 add noisy ifdef guards to special-case this sillyness.
202 Patch from Bernd Kuhls.
203
8d909960
JH
204JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
205 than 255 are no longer allowed.
206
7006ee24
JH
207JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
208 Disable the session-cache too, which might reduce our load. Since we
209 currrectly use a new context for every connection, both as server and
210 client, there is no benefit for these.
211 GnuTLS appears to not support tickets server-side by default (we don't
212 call gnutls_session_ticket_enable_server()) but client side is enabled
213 by default on recent versions (3.1.3 +) unless the PFS priority string
214 is used (3.2.4 +).
215
6e411084
PP
216PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
217 <https://reproducible-builds.org/specs/source-date-epoch/>.
218
4c2471ca
JH
219JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
220 the check for any unsuccessful recipients did not notice the limit, and
221 erroneously found still-pending ones.
222
4e910c01
JH
223JH/08 Pipeline CHUNKING command and data together, on kernels that support
224 MSG_MORE. Only in-clear (not on TLS connections).
225
42055a33
JH
226JH/09 Avoid using a temporary file during transport using dkim. Unless a
227 transport-filter is involved we can buffer the headers in memory for
228 creating the signature, and read the spool data file once for the
229 signature and again for transmission.
230
eeb35890
JH
231JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
232 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 233 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 234
b7d3afcf
JH
235JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
236 case where the routing stage had gathered several addresses to send to
237 a host before calling the transport for the first, we previously failed
238 to close down TLS in the old transport process before passing the TCP
239 connection to the new process. The new one sent a STARTTLS command
240 which naturally failed, giving a failed delivery and bloating the retry
241 database. Investigation and fix prototype from Wolfgang Breyha.
242
40525d07
JH
243JH/12 Fix check on SMTP command input synchronisation. Previously there were
244 false-negatives in the check that the sender had not preempted a response
245 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 246 awareness of the SMTP input buffering.
40525d07 247
f33875c3
PP
248PP/04 Add commandline_checks_require_admin option.
249 Exim drops privileges sanely, various checks such as -be aren't a
250 security problem, as long as you trust local users with access to their
251 own account. When invoked by services which pass untrusted data to
252 Exim, this might be an issue. Set this option in main configuration
253 AND make fixes to the calling application, such as using `--` to stop
254 processing options.
255
a5ffa9b4
JH
256JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
257 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
258 responses to those, into a single TLS record each way (this usually means
259 a single packet). As a side issue, smtp_enforce_sync now works on TLS
260 connections.
925ac8e4 261
6600985a
PP
262PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
263 affects you only if you're dancing at the edge of the param size limits.
264 If you are, and this message makes sense to you, then: raise the
265 configured limit or use OpenSSL 1.1. Nothing we can do for older
266 versions.
267
ac4d558b
JH
268JH/14 For the "sock" variant of the malware scanner interface, accept an empty
269 cmdline element to get the documented default one. Previously it was
270 inaccessible.
271
e69636bc
JH
272JH/15 Fix a crash in the smtp transport caused when two hosts in succession
273 are unsuable for non-message-specific reasons - eg. connection timeout,
274 banner-time rejection.
275
a843a57e
JH
276JH/16 Fix logging of delivery remote port, when specified by router, under
277 callout/hold.
278
8e041ae0
PP
279PP/06 Repair manualroute's ability to take options in any order, even if one
280 is the name of a transport.
833c70bc
PP
281 Fixes bug 2140.
282
35a04365
HSHR
283HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
284
4226691b
JH
285JH/17 Change the list-building routines interface to use the expanding-string
286 triplet model, for better allocation and copying behaviour.
287
d185889f
JH
288JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
289 Previously it was constructed the first time a possibly-matching string
290 was met in the configuration file input during startup; now it is done
291 during compilation.
292
0a6c178c
JH
293JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
294 compatible one, to avoid the (poorly documented) possibility of a config
295 file in the working directory redirecting the DB files, possibly correpting
02745400 296 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 297
fae8970d
JH
298JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
299 cache-hot. Previously, although the result was properly cached, the
300 initial verify call returned a defer.
301
ad1a76fe 302JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
303 the main verify for receipient in uncached-mode.
304
ad1a76fe
JH
305JH/22 Retire historical build files to an "unsupported" subdir. These are
306 defined as "ones for which we have no current evidence of testing".
307
135e9496
JH
308JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
309 if present. Previously it was ignored.
310
f2ed27cf
JH
311JH/24 Start using specified-initialisers in C structure init coding. This is
312 a C99 feature (it's 2017, so now considered safe).
313
7eb0e5d2
JH
314JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
315 if was a fixed-sized field and bitmask ops via macros; it is now more
316 extensible.
317
4f9f4be4
318PP/07 GitHub PR 56: Apply MariaDB build fix.
319 Patch provided by Jaroslav Škarvada.
320
dc4de9cc
PP
321PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
322 during Coverity cleanups [4.87 JH/47]
323 Diagnosis and fix provided by Michael Fischer v. Mollard.
324
ea18931d
JH
325JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
326 the right size to place the terminating semicolon on its own folded
327 line, the header hash was calculated to an incorrect value thanks to
328 the (relaxed) space the fold became.
329
2cee425a
HSHR
330HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
331 and confused the parent.
332
848214f7
JH
333JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
334 which could crash as a result. This could lead to undeliverable messages.
335
9e0ed81f
JH
336JH/28 Logging: "next input sent too soon" now shows where input was truncated
337 for log purposes.
338
2540f2f8
JH
339JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
340 matters on fast-turnover and PID-randomising systems, which were getting
341 out-of-order delivery.
342
e5ab0ba9
JH
343JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
344 a possibly-overlapping copy. The symptom was that "Remote host closed
345 connection in response to HELO" was logged instead of the actual 4xx
346 error for the HELO.
347
e99a3a6c
JH
348JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
349 Previously only that bufferd was discarded, resulting in SYMTP command
350 desynchronisation.
351
18067c75
JH
352JH/32 DKIM: when a message has multiple signatures matching an identity given
353 in dkim_verify_signers, run the dkim acl once for each. Previously only
354 one run was done. Bug 2189.
355
72934ba7
JH
356JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
357 "panic the current process" to "deliberately defer". The panic log is
358 still written with the problem list name; the mail and reject logs now
359 get a temp-reject line for the message that was being handled, saying
360 something like "domains check lookup or other defer". The SMTP 451
361 message is still "Temporary local problem".
362
625667b6
JH
363JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
364 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
365 freed. CVE-2017-16943.
366
367HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
368 from SMTP input. Previously it was always done; now only done for DATA
369 and not BDAT commands. CVE-2017-16944.
625667b6 370
d21bf202
JH
371JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
372 to the message (such as an overlong header line). Previously this was
373 not done and we did not exit BDAT mode. Followon from the previous item
374 though a different problem.
375
acfc18c3 376
fd047340 377Exim version 4.89
acfc18c3 378-----------------
4c57a40e 379
9427e879 380JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 381 than -2003 did; needs libidn2 in addition to libidn.
fd047340 382
7b283890
JH
383JH/02 The path option on a pipe transport is now expanded before use.
384
4c57a40e
PP
385PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
386 Patch provided by "Björn", documentation fix added too.
387
5d036699
JH
388JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
389 missing a wire-to-host endian conversion.
390
f4630439
JH
391JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
392 close after a BDAT command line could be taken as a following command,
393 giving a synch failure. Fix by only checking for synch immediately
394 before acknowledging the chunk.
395
f988ce57
JS
396PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
397 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
398 macro. Patches provided by Josh Soref.
399
bd8fbe36
JH
400JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
401 Previously we did not; the RFC seems ambiguous and VRFY is not listed
402 by IANA as a service extension. However, John Klensin suggests that we
403 should.
404
405JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
406 the dkim code may be unix-mode line endings rather than smtp wire-format
407 CRLF, so prepend a CR to any bare LF.
fd047340 408
bd8fbe36 409JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
410 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
411
bd8fbe36
JH
412JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
413 the first were themselves being wrongly included in the feed into dkim
414 processing; with most chunk sizes in use this resulted in an incorrect
415 body hash calculated value.
416
eea19017
JH
417JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
418 DKIM signature block, for verification. Although advised against by
419 standards it is specifically not ruled illegal.
420
44e6651b
JH
421JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
422
423JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
424 missing a body hash (the bh= tag).
425
426JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
427 It seems that HAProxy sends the Proxy Protocol information in clear and
428 only then does a TLS startup, so do the same.
429
430JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
431 TCP connections (such as for Spamd) unless the daemon successfully set
432 Fast Open mode on its listening sockets. This fixes breakage seen on
433 too-old kernels or those not configured for Fast Open, at the cost of
434 requiring both directions being enabled for TFO, and TFO never being used
435 by non-daemon-related Exim processes.
436
437JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
438 endings, at least on the first header line. Try to canonify any that get
439 past that check, despite the cost.
440
b6040544
JH
441JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
442 now limited to an arbitrary five deep, while parsing addresses with the
443 strip_excess_angle_brackets option enabled.
444
f700ea4d
PP
445PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
446 instead leave the unprompted TLS handshake in socket buffer for the
447 TLS library to consume.
448
da88acae
PP
449PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
450
f6ef9370
PP
451PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
452
90341c71
JH
453JH/16 Drop variables when they go out of scope. Memory management drops a whole
454 region in one operation, for speed, and this leaves assigned pointers
455 dangling. Add checks run only under the testsuite which checks all
456 variables at a store-reset and panics on a dangling pointer; add code
457 explicitly nulling out all the variables discovered. Fixes one known
458 bug: a transport crash, where a dangling pointer for $sending_ip_address
459 originally assigned in a verify callout, is re-used.
460
1ec2ab36
PP
461PP/06 Drop '.' from @INC in various Perl scripts.
462
463PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
464
465PP/08 Reduce a number of compilation warnings under clang; building with
466 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
467 should be warning-free.
468
8b2b9480
PP
469JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
470
471HS/01 Fix portability problems introduced by PP/08 for platforms where
472 realloc(NULL) is not equivalent to malloc() [SunOS et al].
473
d953610f
HSHR
474HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
475 chunk. This allows us to accept broken chunked messages. We need a more
476 general solution here.
477
7dc5f827
PP
478PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
479 already-broken messages in the queue.
480
4bb432cb
PP
481JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
482
3b1a84c8
PP
483JH/19 Fix reference counting bug in routing-generated-address tracking.
484
902fbd69 485
8d042305
JH
486Exim version 4.88
487-----------------
4c57a40e 488
9094b84b
JH
489JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
490 supports it and a size is available (ie. the sending peer gave us one).
8d042305 491
03d5892b
JH
492JH/02 The obsolete acl condition "demime" is removed (finally, after ten
493 years of being deprecated). The replacements are the ACLs
494 acl_smtp_mime and acl_not_smtp_mime.
495
4b0fe319
JH
496JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
497 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
498 or even an in-clear connection were permitted. Now, if the host lookup
499 was dnssec and dane was requested then the host is only used if the
500 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
501 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
502 if one fails this test.
503 This means that a poorly-configured remote DNS will make it incommunicado;
504 but it protects against a DNS-interception attack on it.
505
789f8a4f
JH
506JH/04 Bug 1810: make continued-use of an open smtp transport connection
507 non-noisy when a race steals the message being considered.
508
23bb6982 509JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 510 self-signed certificate for inbound TLS connections.
23bb6982 511
0bd1b1ed 512JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 513 in rewrites and routers.
0bd1b1ed 514
20b9a2dc
JH
515JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
516 and logged a warning sing 4.83; now they are a configuration file error.
517
05392bbc
JH
518JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
519 (lacking @domain). Apply the same qualification processing as RCPT.
520
1a6230a3
JH
521JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
522
cfab9d68
JH
523JH/10 Support ${sha256:} applied to a string (as well as the previous
524 certificate).
525
98c82a3d
JH
526JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
527 a cutthrough deliver is pending, as we always want to make a connection.
528 This also avoids re-routing the message when later placing the cutthrough
529 connection after a verify cache hit.
530 Do not update it with the verify result either.
531
532JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
533 when routing results in more than one destination address.
534
ae8386f0
JH
535JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
536 signing (which inhibits the cutthrough capability). Previously only
537 the presence of an option was tested; now an expansion evaluating as
538 empty is permissible (obviously it should depend only on data available
539 when the cutthrough connection is made).
540
0d9fa8c0
JH
541JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
542 the relevant preceding SMTP command did not note the pipelining mode.
543
3581f321
JH
544JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
545 Previously they were not counted.
546
ef3a1a30
JH
547JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
548 as one having no matching records. Previously we deferred the message
549 that needed the lookup.
550
4c04137d 551JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
552 distinguished as "(=".
553
1435d4b2
JH
554JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
555 for missing MX records. Previously it only worked for missing A records.
556
eea0defe
JB
557JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
558
559JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
560 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 561
4c04137d 562JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
563 even for a "none" policy. Patch from Tony Meyer.
564
1c788856
JH
565JH/22 Fix continued use of a connection for further deliveries. If a port was
566 specified by a router, it must also match for the delivery to be
567 compatible.
568
e3b1f624
JH
569JH/23 Bug 1874: fix continued use of a connection for further deliveries.
570 When one of the recipients of a message was unsuitable for the connection
571 (has no matching addresses), we lost track of needing to mark it
572 deferred. As a result mail would be lost.
573
a57ce043
JH
574JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
575
f59aaaaa 576JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
577 takes up less space and should be simpler to maintain. Merge the ACL
578 condition decode tables also, with similar effect.
d7bed771 579
d1f9fb42
JH
580JH/26 Fix problem with one_time used on a redirect router which returned the
581 parent address unchanged. A retry would see the parent address marked as
582 delivered, so not attempt the (identical) child. As a result mail would
583 be lost.
584
92b0827a
JH
585JH/27 Fix a possible security hole, wherein a process operating with the Exim
586 UID can gain a root shell. Credit to http://www.halfdog.net/ for
587 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
588 itself :(
589
ddf1b11a
JH
590JH/28 Enable {spool,log} filesystem space and inode checks as default.
591 Main config options check_{log,spool}_{inodes,space} are now
592 100 inodes, 10MB unless set otherwise in the configuration.
593
3cc3f762
JH
594JH/29 Fix the connection_reject log selector to apply to the connect ACL.
595 Previously it only applied to the main-section connection policy
596 options.
597
ae5afa61
JH
598JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
599
317e40ac
PP
600PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
601 by me. Added RFC7919 DH primes as an alternative.
602
8b0fb68e
PP
603PP/02 Unbreak build via pkg-config with new hash support when crypto headers
604 are not in the system include path.
605
ad7fc6eb 606JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 607 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
608 Exim did stdio operations after fclose. This was exposed by a recent
609 change which nulled out the file handle after the fclose.
ad7fc6eb 610
ee5b1e28
JH
611JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
612 signed directly by the cert-signing cert, rather than an intermediate
613 OCSP-signing cert. This is the model used by LetsEncrypt.
614
5ddc9771
JH
615JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
616
8d73599f
JH
617HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
618 an incoming connection.
619
446415f5
HSHR
620HS/02 Bug 1802: Do not half-close the connection after sending a request
621 to rspamd.
622
8e53a4fc
HSHR
623HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
624 fallback to "prime256v1".
8d042305 625
87cb4a16 626JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 627 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
628
629
0d9b78be
JH
630Exim version 4.87
631-----------------
4c57a40e 632
82d14d6a
JH
633JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
634 and 3.4.4 - once the server is enabled to respond to an OCSP request
635 it does even when not requested, resulting in a stapling non-aware
636 client dropping the TLS connection.
0d9b78be 637
6c6d6e48
TF
638TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
639 support variable-length bit vectors. No functional change.
640
ac881e27
TF
641TF/02 Improve the consistency of logging incoming and outgoing interfaces.
642 The I= interface field on outgoing lines is now after the H= remote
643 host field, same as incoming lines. There is a separate
644 outgoing_interface log selector which allows you to disable the
645 outgoing I= field.
646
c8899c20
JH
647JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
648 If not running log_selector +smtp_connection the mainlog would be held
649 open indefinitely after a "too many connections" event, including to a
650 deleted file after a log rotate. Leave the per net connection logging
651 leaving it open for efficiency as that will be quickly detected by the
652 check on the next write.
653
f1b81d81
HSHR
654HS/01 Bug 1671: Fix post transport crash.
655 Processing the wait-<transport> messages could crash the delivery
656 process if the message IDs didn't exist for some reason. When
657 using 'split_spool_directory=yes' the construction of the spool
658 file name failed already, exposing the same netto behaviour.
659
f38917cc
JH
660JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
661 mime_regex ACL conditions.
662
895fbaf2
JH
663JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
664 to DSN fail messages (bounces): remote IP, remote greeting, remote response
665 to HELO, local diagnostic string.
666
805bb5c3
JH
667JH/05 Downgrade message for a TLS-certificate-based authentication fail from
668 log line to debug. Even when configured with a tls authenticator many
669 client connections are expected to not authenticate in this way, so
670 an authenticate fail is not an error.
671
56c2a7be
HSHR
672HS/02 Add the Exim version string to the process info. This way exiwhat
673 gives some more detail about the running daemon.
674
4c04137d 675JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
676 matter for fast-change records such as DNSBLs.
677
6f6dedcc
JH
678JH/07 Bug 1678: Always record an interface option value, if set, as part of a
679 retry record, even if constant. There may be multiple transports with
680 different interface settings and the retry behaviour needs to be kept
681 distinct.
682
0f557e90
JH
683JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
684
685JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
686
ec0eb1a3
JH
687JH/10 Bug 840: fix log_defer_output option of pipe transport
688
41e93589
JH
689JH/11 Bug 830: use same host for all RCPTS of a message, even under
690 hosts_randomize. This matters a lot when combined with mua_wrapper.
691
98b98887 692JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
693 ${quote_pgsql:<string>} operator.
694
98b98887
JH
695JH/13 Bug 1708: avoid misaligned access in cached lookup.
696
858e91c2
JH
697JH/14 Change header file name for freeradius-client. Relevant if compiling
698 with Radius support; from the Gentoo tree and checked under Fedora.
699
700JH/15 Bug 1712: Introduce $prdr_requested flag variable
701
6ff55e50
JH
702JH/16 Bug 1714: Permit an empty string as expansion result for transport
703 option transport_filter, meaning no filtering.
704
3b957582
JB
705JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
706
23f3dc67
JH
707JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
708 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 709 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
710 If a server certificate is not supplied (via tls_certificate) an error is
711 logged, and clients will find TLS connections fail on startup. Presumably
712 they will retry in-clear.
713 Packagers of Exim are strongly encouraged to create a server certificate
714 at installation time.
715
240c288f
JH
716HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
717 with the $config_file variable.
718
5ef5dd52
JB
719JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
720 in transport context, after the attempt, and per-recipient. The latter type
721 is per host attempted. The event data is the error message, and the errno
722 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 723 and the trailing two digits of the smtp 4xx response.
5ef5dd52 724
e161710d
GF
725GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
726 to write to mainlog (or rejectlog, paniclog) in the window between file
727 creation and permissions/ownership being changed. Particularly affects
728 installations where exicyclog is run as root, rather than exim user;
729 result is that the running daemon panics and dies.
730
a159f203
JH
731JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
732
7f06582c
JH
733JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
734 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
735 "pri" and "weight". Note that the previous implicit priority given by the
736 list order is no longer honoured.
737
4c04137d 738JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
739 for DKIM processing.
740
f0989ec0
JH
741JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
742 by defining SUPPORT_SOCKS.
74f150bf 743
cee5f132
JH
744JH/26 Move PROXY support from Experimental to mainline, enabled for a build
745 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
746 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
747 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 748
8c5d388a
JH
749JH/27 Move Internationalisation support from Experimental to mainline, enabled
750 for a build by defining SUPPORT_I18N
751
2d8d625b
JH
752JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
753 of the query string, and make ${quote_redis:} do that quoting.
754
0cbf2b82
JH
755JH/29 Move Events support from Experimental to mainline, enabled by default
756 and removable for a build by defining DISABLE_EVENT.
757
f2f2c91b
JH
758JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
759
ce325893
JH
760JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
761 cached by the daemon.
762
de78e2d5
JH
763JH/32 Move Redis support from Experimental to mainline, enabled for a build
764 by defining LOOKUP_REDIS. The libhiredis library is required.
765
379ba7d0
JH
766JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
767 keys are given for lookup.
768
f444c2c7
JH
769JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
770 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
771 only supported when built with TLS support. The PolarSSL SHA routines
772 are still used when the TLS library is too old for convenient support.
f444c2c7 773
a57b6200
JH
774JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
775 openssl_options), for security. OpenSSL forces this from version 1.1.0
776 server-side so match that on older versions.
777
07c73177 778JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 779 allocation for $value could be released as the expansion processing
07c73177 780 concluded, but leaving the global pointer active for it.
fa01e4f8 781
4f6ae5c3
JH
782JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
783 and to use the domains and local_parts ACL conditions.
784
1bc460a6
JH
785JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
786 incorrectly not doubled on cutthrough transmission, hence seen as a
787 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 788 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
789 via the normal store-and-forward channel. This could result in duplicates
790 received - but deduplicating mailstores were liable to retain only the
791 initial truncated version.
792
ab9152ff 793JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 794
67e87fcf
JH
795JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
796
ab9152ff
JH
797JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
798 we're in there, support oversigning also; bug 1309.
799
af483912
JH
800JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
801
bc3c7bb7 802HS/04 Add support for keep_environment and add_environment options.
df3def24 803
13559da6
JH
804JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
805 either intentional arithmetic overflow during PRNG, or testing config-
806 induced overflows.
807
59eaad2b
JH
808JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
809 delivery resulted in actual delivery. Cancel cutthrough before DATA
810 stage.
811
f9334a28
JH
812JH/45 Fix cutthrough, when connection not opened by verify and target hard-
813 rejects a recipient: pass the reject to the originator.
814
dc8091e7
JH
815JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
816 Many were false-positives and ignorable, but it's worth fixing the
817 former class.
818
dfe7d917
JH
819JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
820 for the new environment-manipulation done at startup. Move the routines
821 from being local to tls.c to being global via the os.c file.
822
93cc2d6e
JH
823JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
824 an extract embedded as result-arg for a map, the first arg for extract
825 is unavailable so we cannot tell if this is a numbered or keyed
826 extraction. Accept either.
827
13559da6 828
9c695f6d
JH
829Exim version 4.86
830-----------------
4c57a40e 831
9c695f6d
JH
832JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
833 expanded.
834
506900af
JH
835JH/02 The smtp transport option "multi_domain" is now expanded.
836
ad07e9ad
JH
837JH/03 The smtp transport now requests PRDR by default, if the server offers
838 it.
839
01a4a5c5 840JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 841 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
842 can be used to disable this per-host. The build option
843 EXPERIMENTAL_CERTNAMES is withdrawn.
844
cb1d7830 845JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 846 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
847 For GnuTLS, only version 3.0.20 or later.
848
610ff438 849JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
850 (but not required) by default. The verification status is now logged by
851 default, for both outbound TLS and client-certificate supplying inbound
852 TLS connections
610ff438 853
f926e272
JH
854JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
855 sites use this now.
856
50dc7409
JH
857JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
858 Status Notification (bounce) messages are now MIME format per RFC 3464.
859 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
860 under the control of the dsn_advertise_hosts option, and routers may
861 have a dsn_lasthop option.
862
0f0c8159
JH
863JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
864 default, modifiable by a malware= option. The list separator for
23763898 865 the options can now be changed in the usual way. Bug 68.
4e71661f 866
1ad6489e
JH
867JH/10 The smtp_receive_timeout main option is now expanded before use.
868
aeaf5db3
JH
869JH/11 The incoming_interface log option now also enables logging of the
870 local interface on delivery outgoing connections.
871
5032d1cf
JH
872JH/12 The cutthrough-routing facility now supports multi-recipient mails,
873 if the interface and destination host and port all match.
874
7e8360e6
JH
875JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
876 /defer_ok option.
877
c5f280e2
AL
878JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
879 Patch from Andrew Lewis.
880
fd4d8871 881JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 882 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
883 modifiers per server. Patch originally by <rommer@active.by>.
884
885JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
886 and remote servers. Remote servers can be IPv6 addresses, and
887 specify a port-range.
fd4d8871 888
23763898
JH
889JH/17 Bug 68: The spamd_address main option now supports an optional
890 timeout value per server.
891
2ad78978
JH
892JH/18 Bug 1581: Router and transport options headers_add/remove can
893 now have the list separator specified.
894
8a512ed5 895JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 896 option values.
8a512ed5 897
82c0c8ea 898JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
899 under OpenSSL.
900
cc00f4af
JH
901JH/21 Support for the A6 type of dns record is withdrawn.
902
82c0c8ea
JH
903JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
904 rather than the verbs used.
905
b980ed83
JH
906JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
907 from 255 to 1024 chars.
908
6c9ed72e
JH
909JH/24 Verification callouts now attempt to use TLS by default.
910
cfab9d68 911HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 912 are generic router options now. The defaults didn't change.
50dc7409 913
f846c8f5
JH
914JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
915 Original patch from Alexander Shikoff, worked over by JH.
916
fd4c285c
HSHR
917HS/02 Bug 1575: exigrep falls back to autodetection of compressed
918 files if ZCAT_COMMAND is not executable.
919
4c04137d 920JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 921
d2a2c69b
JH
922JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
923
8241d8dd
JH
924JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
925 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 926 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
927 (and we were inconsistent anyway for A-only vs AAAA+A).
928
1f12df4d
JH
929JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
930
1f155f8e
JH
931JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
932 when evaluating $sender_host_dnssec.
933
1705dd20
JH
934JH/31 Check the HELO verification lookup for DNSSEC, adding new
935 $sender_helo_dnssec variable.
936
038597d2
PP
937JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
938
474f71bf
JH
939JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
940
7137ca4b
JH
941JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
942
dcb1095c
JH
943JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
944 documented as working, but never had. Support all but $spam_report.
945
2f460950
JH
946JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
947 added for tls authenticator.
948
2f680c0c
HSHR
949HS/03 Add perl_taintmode main config option
950
9c695f6d 951
e449c3b0
TL
952Exim version 4.85
953-----------------
4c57a40e 954
e449c3b0
TL
955TL/01 When running the test suite, the README says that variables such as
956 no_msglog_check are global and can be placed anywhere in a specific
957 test's script, however it was observed that placement needed to be near
958 the beginning for it to behave that way. Changed the runtest perl
959 script to read through the entire script once to detect and set these
960 variables, reset to the beginning of the script, and then run through
961 the script parsing/test process like normal.
962
ac20058f
TL
963TL/02 The BSD's have an arc4random API. One of the functions to induce
964 adding randomness was arc4random_stir(), but it has been removed in
965 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
966 function when detected.
967
a9b8ec8b
JH
968JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
969 cause callback expansion.
970
6286d7c4
TL
971TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
972 syntax errors in an expansion can be treated as a string instead of
973 logging or causing an error, due to the internal use of bool_lax
974 instead of bool when processing it.
975
0f06b4f2 976JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
977 server certificates when making smtp deliveries.
978
be36e572
JH
979JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
980
ac4ef9bd
JH
981JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
982
0eb51736
TL
983TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
984
c713ca4b
TL
985TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
986 Merged patch from Sebastian Wiedenroth.
e449c3b0 987
bd21a787
WB
988JH/05 Fix results-pipe from transport process. Several recipients, combined
989 with certificate use, exposed issues where response data items split
990 over buffer boundaries were not parsed properly. This eventually
991 resulted in duplicates being sent. This issue only became common enough
4c04137d 992 to notice due to the introduction of connection certificate information,
bd21a787
WB
993 the item size being so much larger. Found and fixed by Wolfgang Breyha.
994
8bc732e8
JH
995JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
996 size buffer was used, resulting in syntax errors when an expansion
997 exceeded it.
998
a7fec7a7
JH
999JH/07 Add support for directories of certificates when compiled with a GnuTLS
1000 version 3.3.6 or later.
1001
4c04137d 1002JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1003 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1004 both become "event_action", the variables become $event_name, $event_data
aec45841 1005 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1006 routers, transports and related events. The tls:cert event is now also
1007 raised for inbound connections, if the main configuration event_action
1008 option is defined.
774ef2d7 1009
eca4debb
TL
1010TL/06 In test suite, disable OCSP for old versions of openssl which contained
1011 early OCSP support, but no stapling (appears to be less than 1.0.0).
1012
8d692470
JH
1013JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1014 server certificate names available under the smtp transport option
1015 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1016 matches.
1017
e9477a08
JH
1018JH/10 Time-related extraction expansions from certificates now use the main
1019 option "timezone" setting for output formatting, and are consistent
1020 between OpenSSL and GnuTLS compilations. Bug 1541.
1021
ad4c5ff9
JH
1022JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1023 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1024
1025JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1026 include certificate info, eximon was claiming there were spoolfile
1027 syntax errors.
1028
3394b36a 1029JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1030
1031JH/14 Log delivery-related information more consistently, using the sequence
1032 "H=<name> [<ip>]" wherever possible.
1033
3394b36a
TL
1034TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1035 are problematic for Debian distribution, omit them from the release
1036 tarball.
1037
ad4c5ff9
JH
1038JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1039
4c04137d 1040JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1041 Bug 1561.
1042
1043JH/17 Fix a null-indirection in certextract expansions when a nondefault
1044 output list separator was used.
1045
8bc732e8 1046
1f0ebb98
TL
1047Exim version 4.84
1048-----------------
09728d20
TL
1049TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1050 checkers that were complaining about end of non-void function with no
1051 return.
1f0ebb98 1052
a612424f 1053JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1054 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1055
1056JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1057
1058TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1059 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1060
1f0ebb98 1061
c0e56233
TF
1062Exim version 4.83
1063-----------------
1064
1065TF/01 Correctly close the server side of TLS when forking for delivery.
1066
1067 When a message was received over SMTP with TLS, Exim failed to clear up
1068 the incoming connection properly after forking off the child process to
1069 deliver the message. In some situations the subsequent outgoing
1070 delivery connection happened to have the same fd number as the incoming
1071 connection previously had. Exim would try to use TLS and fail, logging
1072 a "Bad file descriptor" error.
1073
7245734e
TF
1074TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1075 utilities have not been installed.
1076
fd5dad68
JH
1077JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1078 temporary space as the ACL may create new global variables.
1079
5428a946
TL
1080TL/01 LDAP support uses per connection or global context settings, depending
1081 upon the detected version of the libraries at build time.
1082
a3c86431
TL
1083TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1084 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1085 were a direct connection from the outside internet. PPv2 support was
1086 updated based on HAProxy spec change in May 2014.
a3c86431 1087
aa26e137
JH
1088JH/02 Add ${listextract {number}{list}{success}{fail}}.
1089
5a1b8443
WB
1090TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1091 Properly escape header and check for NULL return.
1092
72c9e342
PP
1093PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1094 not dns_use_dnssec.
1095
76f44207
WB
1096JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1097
770747fd
MFM
1098TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1099 characters in header names, implemented as a verify condition.
1100 Contributed by Michael Fischer v. Mollard.
1101
8ddef691 1102TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1103 results permerror and temperror. Previous values are deprecated but
1104 still accepted. In a future release, err_perm and err_temp will be
1105 completely removed, which will be a backward incompatibility if the
1106 ACL tests for either of these two old results. Patch contributed by
8ddef691 1107 user bes-internal on the mailing list.
c0e56233 1108
b9c2e32f
AR
1109JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1110
e45a1c37
JH
1111JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1112 selectors, in both main and reject logs.
1113
67d81c10
JH
1114JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1115 failed delivery.
1116
b1f8e4f8
JH
1117JH/07 Add malware type "sock" for talking to simple daemon.
1118
511a6c14 1119JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1120
1121JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1122 routers/transports under cutthrough routing.
214042d2 1123
51c7471d
JH
1124JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1125 numbers. Touch up "bool" conditional to keep the same definition.
1126
3695be34
TL
1127TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1128
1e06383a
TL
1129JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1130
76146973
JH
1131JH/12 Expand items in router/transport headers_add or headers_remove lists
1132 individually rather than the list as a whole. Bug 1452.
1133
1134 Required for reasonable handling of multiple headers_ options when
1135 they may be empty; requires that headers_remove items with embedded
1136 colons must have them doubled (or the list-separator changed).
1137
8c8b8274
TL
1138TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1139 view the policy declared in the DMARC record. Currently, $dmarc_status
1140 is a combined value of both the record presence and the result of the
1141 analysis.
b1f8e4f8 1142
35aba663
JH
1143JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1144
8c51eead 1145JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1146 dnslookup router and the smtp transport (applying to the forward
1147 lookup).
8c51eead 1148
deae092e
HS
1149TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1150 of ldap servers used for a specific lookup. Patch provided by Heiko
1151 Schlichting.
35aba663 1152
fd3b6a4a 1153JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1154 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1155
8d91c6dc
LT
1156TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1157 Patch submitted by Lars Timman.
1158
2b4a568d
JH
1159JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1160
d2af03f4
HS
1161TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1162 Requires trusted mode and valid format message id, aborts otherwise.
1163 Patch contributed by Heiko Schlichting.
1164
9d1c15ef
JH
1165JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1166 certextract with support for various fields. Bug 1358.
1167
44662487
JH
1168JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1169 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1170 hosts_request_ocsp.
1171
ed3bba5f 1172JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1173 operate on certificate variables to give certificate fingerprints
9ef9101c 1174 Also new ${sha256:cert_variable}.
44662487 1175
8ccd00b1
JH
1176JH/23 The PRDR feature is moved from being Experimental into the mainline.
1177
8ded8589
TL
1178TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1179 Christian Aistleitner.
1180
f2de3a33
JH
1181JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1182
6eb02f88
TL
1183TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1184 file. Patch from Wolfgang Breyha.
1185
00bff6f6
JH
1186JH/25 Expand the coverage of the delivery $host and $host_address to
1187 client authenticators run in verify callout. Bug 1476.
1188
071c51f7
JH
1189JH/26 Port service names are now accepted for tls_on_connect_ports, to
1190 align with daemon_smtp_ports. Bug 72.
1191
a6d4c44e
TF
1192TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1193 support and error reporting did not work properly.
1194
3ae173e7
ACK
1195TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1196 and is readable. Patch from Andrew Colin Kissa.
1197
c13d09b8
TL
1198TL/14 Enhance documentation of ${run expansion and how it parses the
1199 commandline after expansion, particularly in the case when an
1200 unquoted variable expansion results in an empty value.
1201
0df4ab80
JH
1202JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1203
66be95e0
PP
1204PP/02 Fix internal collision of T_APL on systems which support RFC3123
1205 by renaming away from it. Addresses GH issue 15, reported by
1206 Jasper Wallace.
1207
1bd0d12b
JH
1208JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1209
0de7239e
TL
1210TL/15 SECURITY: prevent double expansion in math comparison functions
1211 (can expand unsanitized data). Not remotely exploitable.
1212 CVE-2014-2972
1213
fd3b6a4a 1214
2c422e6f 1215Exim version 4.82
98a90c36
PP
1216-----------------
1217
1218PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1219
12f69989
PP
1220PP/02 Make -n do something, by making it not do something.
1221 When combined with -bP, the name of an option is not output.
1222
54c90be1
PP
1223PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1224 by GnuTLS.
1225
1f4a55da
PP
1226PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1227 $sender_host_name and config options to manage this, and basic check
1228 routines.
1229
13363eba 1230PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1231
66645890 1232PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1233 (Only plugin which currently uses this is kerberos4, which nobody should
1234 be using, but we should make it available and other future plugins might
1235 conceivably use it, even though it would break NAT; stuff *should* be
1236 using channel bindings instead).
66645890 1237
a3fb9793 1238PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1239 name; added for Sendmail compatibility; requires admin caller.
1240 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1241 just ignore it); requires trusted caller.
a3fb9793 1242 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1243 Bugzilla 1117.
a3fb9793 1244
d27f98fe 1245TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1246
6822b909
TL
1247TL/02 Add +smtp_confirmation as a default logging option.
1248
e7568d51
TL
1249TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1250 Patch by Magnus Holmgren from 2007-02-20.
1251
ae0e32ee 1252TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1253 Bugzilla 1283 - Spec typo.
97f42f10 1254 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1255
1256TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1257
e2658fff
TL
1258TL/06 Add Experimental DMARC support using libopendmarc libraries.
1259
83712b39
TL
1260TL/07 Fix an out of order global option causing a segfault. Reported to dev
1261 mailing list by by Dmitry Isaikin.
1262
976b7e9f
JH
1263JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1264
be4a1376
JH
1265JH/02 Support "G" suffix to numbers in ${if comparisons.
1266
ec4b68e5
PP
1267PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1268
d7148a07
NM
1269NM/01 Bugzilla 1197 - Spec typo
1270 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1271
585121e2 1272JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1273
2519e60d
TL
1274PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1275 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1276 function.
a5f239e4 1277
13d08c90
PP
1278PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1279 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1280
bef3ea7f
JH
1281JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1282 "acl {{name}{arg}...}", and optional args on acl condition
1283 "acl = name arg..."
a5f239e4 1284
846726c5
JH
1285JH/05 Permit multiple router/transport headers_add/remove lines.
1286
3a796370
JH
1287JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1288
ea722490 1289JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1290 Performance patch from Paul Fisher. Bugzilla 1262.
1291
b1b05573
JH
1292JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1293 Bugzilla 884.
1294
362145b5
JH
1295JH/09 Add $headers_added variable, with content from use of ACL modifier
1296 add_header (but not yet added to the message). Bugzilla 199.
1297
3c0a92dc
JH
1298JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1299 Pulled from Bugzilla 817 by Wolfgang Breyha.
1300
6d7c6175
PP
1301PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1302 CVE-2012-5671
e78e6ecf 1303 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1304
6f123593
JH
1305JH/11 Add A= logging on delivery lines, and a client_set_id option on
1306 authenticators.
1307
c8e2fc1e
JH
1308JH/12 Add optional authenticated_sender logging to A= and a log_selector
1309 for control.
1310
005ac57f
PP
1311PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1312
3f1df0e3
PP
1313PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1314 advertise SMTP AUTH mechanism to us, instead of a generic
1315 protocol violation error. Also, make Exim more robust to bad
1316 data from the Dovecot auth socket.
1317
67bd1ab3
TF
1318TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1319
1320 When a queue runner is handling a message, Exim first routes the
1321 recipient addresses, during which it prunes them based on the retry
1322 hints database. After that it attempts to deliver the message to
1323 any remaining recipients. It then updates the hints database using
1324 the retry rules.
1325
1326 So if a recipient address works intermittently, it can get repeatedly
1327 deferred at routing time. The retry hints record remains fresh so the
1328 address never reaches the final cutoff time.
1329
1330 This is a fairly common occurrence when a user is bumping up against
1331 their storage quota. Exim had some logic in its local delivery code
1332 to deal with this. However it did not apply to per-recipient defers
1333 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1334
1ddeb334
TF
1335 This change adds a proper retry rule check during routing so that the
1336 final cutoff time is checked against the message's age. We only do
1337 this check if there is an address retry record and there is not a
1338 domain retry record; this implies that previous attempts to handle
1339 the address had the retry_use_local_parts option turned on. We use
1340 this as an approximation for the destination being like a local
1341 delivery, as in LMTP.
67bd1ab3
TF
1342
1343 I suspect this new check makes the old local delivery cutoff check
1344 redundant, but I have not verified this so I left the code in place.
1345
326cdc37
TF
1346TF/02 Correct gecos expansion when From: is a prefix of the username.
1347
1348 Test 0254 submits a message to Exim with the header
1349
1350 Resent-From: f
1351
1352 When I ran the test suite under the user fanf2, Exim expanded
1353 the header to contain my full name, whereas it should have added
1354 a Resent-Sender: header. It erroneously treats any prefix of the
1355 username as equal to the username.
1356
1357 This change corrects that bug.
1358
f62514b3
GF
1359GF/01 DCC debug and logging tidyup
1360 Error conditions log to paniclog rather than rejectlog.
1361 Debug lines prefixed by "DCC: " to remove any ambiguity.
1362
eb505532
TF
1363TF/03 Avoid unnecessary rebuilds of lookup-related code.
1364
14c7b357
PP
1365PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1366 Bug spotted by Jeremy Harris; was flawed since initial commit.
1367 Would have resulted in OCSP responses post-SNI triggering an Exim
1368 NULL dereference and crash.
1369
94eaf700
PP
1370JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1371
6f5a440a
PP
1372PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1373 Bug detection, analysis and fix by Samuel Thibault.
1374 Bugzilla 1331, Debian bug #698092.
1375
514ee161
SC
1376SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1377
fd98a5c6
JH
1378JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1379 Server implementation by Todd Lyons, client by JH.
1380 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1381 config variable "prdr_enable" controls whether the server
1382 advertises the facility. If the client requests PRDR a new
1383 acl_data_smtp_prdr ACL is called once for each recipient, after
1384 the body content is received and before the acl_smtp_data ACL.
4c04137d 1385 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1386 on the smtp transport, and the server advertisement.
1387 Default client logging of deliveries and rejections involving
1388 PRDR are flagged with the string "PRDR".
1389
035c7f1e
PP
1390PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1391 fclose(). Diagnosis by Todd Lyons.
1392
ff284120
PP
1393PP/17 Update configure.default to handle IPv6 localhost better.
1394 Patch by Alain Williams (plus minor tweaks).
1395 Bugzilla 880.
1396
26e72755
PP
1397PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1398 This is now consistent with GnuTLS, and is now documented: the
1399 previous undocumented portable approach to treating the option as
1400 unset was to force an expansion failure. That still works, and
1401 an empty string is now equivalent.
1402
0fbd9bff
PP
1403PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1404 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1405 not performing validation itself.
1406
700d22f3
PP
1407PP/20 Added force_command boolean option to pipe transport.
1408 Patch from Nick Koston, of cPanel Inc.
1409
fcc8e047
JH
1410JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1411 Bugzilla 321, 823.
1412
4c04137d 1413TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1414
8c020188
PP
1415PP/21 Fix eximon continuous updating with timestamped log-files.
1416 Broken in a format-string cleanup in 4.80, missed when I repaired the
1417 other false fix of the same issue.
1418 Report and fix from Heiko Schlichting.
1419 Bugzilla 1363.
1420
d13cdd30
PP
1421PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1422 Report from Prashanth Katuri.
1423
e2fbf4a2
PP
1424PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1425 It's SecureTransport, so affects any MacOS clients which use the
1426 system-integrated TLS libraries, including email clients.
1427
f4c1088b
PP
1428PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1429 using a MIME ACL for non-SMTP local injection.
1430 Report and assistance in diagnosis by Warren Baker.
1431
c5c2182f
PP
1432TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1433
73431ca9
JH
1434JH/16 Fix comparisons for 64b. Bugzilla 1385.
1435
2d07a215
TL
1436TL/09 Add expansion variable $authenticated_fail_id to keep track of
1437 last id that failed so it may be referenced in subsequent ACL's.
1438
a30a8861
TL
1439TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1440 Alexander Miroch.
1441
33382dd9
TL
1442TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1443 ldap library initialization, allowing self-signed CA's to be
1444 used. Also properly sets require_cert option later in code by
1445 using NULL (global ldap config) instead of ldap handle (per
1446 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1447
046172e6
TL
1448TL/12 Enhanced documentation in the ratelimit.pl script provided in
1449 the src/util/ subdirectory.
1450
581d7bee 1451TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1452 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1453 EXPERIMENTAL_TPDA.
1454
1455TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1456 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1457 redis_servers = needs to be configured which will be used by the redis
1458 lookup. Patch from Warren Baker, of The Packet Hub.
1459
237b2cf2
TL
1460TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1461
9fc5a352
TL
1462TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1463 hostname or reverse DNS when processing a host list. Used suggestions
1464 from multiple comments on this bug.
1a7b746d 1465
b10e4ec2
TL
1466TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1467
e2cebd74
TL
1468TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1469 Missed a few lines, added it to make the runtest require no keyboard
1470 interaction.
1471
1472TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1473 contains upper case chars. Make router use caseful_local_part.
1474
2519e60d
TL
1475TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1476 support when GnuTLS has been built with p11-kit.
1477
e78e6ecf 1478
4263f395
PP
1479Exim version 4.80.1
1480-------------------
1481
1482PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1483 CVE-2012-5671
2c422e6f 1484 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1485
ea722490 1486
b1770b6e 1487Exim version 4.80
0599f9cf
PP
1488-----------------
1489
1490PP/01 Handle short writes when writing local log-files.
1491 In practice, only affects FreeBSD (8 onwards).
1492 Bugzilla 1053, with thanks to Dmitry Isaikin.
1493
23c7e742
NM
1494NM/01 Bugzilla 949 - Documentation tweak
1495
b322aac8
NM
1496NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1497 improved.
1498
4a891427
NM
1499NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1500
c1e794ba 1501PP/02 Implemented gsasl authenticator.
b322aac8 1502
97753960
PP
1503PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1504
1505PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1506 `pkg-config foo` for cflags/libs.
1507
df6303fa
PP
1508PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1509 with rest of GSASL and with heimdal_gssapi.
1510
7e6a8985
PP
1511PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1512 `pkg-config foo` for cflags/libs for the TLS implementation.
1513
f1e05cc7 1514PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1515 properties get this fed in as external SSF. A number of robustness
1516 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1517
4c287009
PP
1518PP/08 cyrus_sasl server now expands the server_realm option.
1519
b98bb9ac
PP
1520PP/09 Bugzilla 1214 - Log authentication information in reject log.
1521 Patch by Jeremy Harris.
1522
4a6a987a
PP
1523PP/10 Added dbmjz lookup type.
1524
c45dd180 1525PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1526
7db8d074
PP
1527PP/12 MAIL args handles TAB as well as SP, for better interop with
1528 non-compliant senders.
1529 Analysis and variant patch by Todd Lyons.
1530
eae0036b 1531NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1532 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1533 Patch from Dirk Mueller <dmueller@suse.com>
1534
dec5017e
PP
1535PP/13 tls_peerdn now print-escaped for spool files.
1536 Observed some $tls_peerdn in wild which contained \n, which resulted
1537 in spool file corruption.
1538
c80c5570
PP
1539PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1540 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1541 or write after TLS renegotiation, which otherwise led to messages
1542 "Got SSL error 2".
1543
076b11e2
PP
1544TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1545 as a tracking header (ie: a signed header comes before the signature).
1546 Patch from Wolfgang Breyha.
1547
5407bfff
JH
1548JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1549 comma-sep list; embedded commas doubled.
1550
9e45c72b
PP
1551JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1552
e74376d8
PP
1553PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1554 diagnostics.
1555 Report and patch from Dmitry Banschikov.
1556
4c04137d 1557PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1558 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1559 failures. We appear to now support TLS1.1+ with Exim.
1560
7be682ca
PP
1561PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1562 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1563 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1564 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1565
ef840681
PP
1566PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1567 NULL dereference. Report and patch from Alun Jones.
1568
5bfb4cdf
PP
1569PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1570 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1571 Not seeing resolver debug output on NetBSD, but suspect this is a
1572 resolver implementation change.
1573
c6e95d22
PP
1574PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1575 Left warnings. Added "eximon gdb" invocation mode.
1576
9cbad13b
PP
1577PP/21 Defaulting "accept_8bitmime" to true, not false.
1578
9ee44efb
PP
1579PP/22 Added -bw for inetd wait mode support.
1580
6a6084f8
PP
1581PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1582 locate the relevant includes and libraries. Made this the default.
1583
12dd53c7
PP
1584PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1585 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1586
9e45c72b 1587JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1588 This may cause build issues on older platforms.
1589
17c76198
PP
1590PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1591 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1592 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1593 Added SNI support via GnuTLS too.
af3498d6 1594 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1595
53947857 1596PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1597
eae0036b 1598PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1599 Applied second patch from Janne, implementing suggestion to default
1600 multiple-strings-in-record handling to match SPF spec.
eae0036b 1601
9e45c72b 1602JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1603
7390e768
PP
1604PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1605 read-only, out of scope).
1606 Patch from Wolfgang Breyha, report from Stuart Northfield.
1607
08488c86
PP
1608PP/29 Fix three issues highlighted by clang analyser static analysis.
1609 Only crash-plausible issue would require the Cambridge-specific
1610 iplookup router and a misconfiguration.
1611 Report from Marcin Mirosław.
1612
6475bd82
PP
1613PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1614
81f91683
PP
1615PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1616 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1617 As part of this, removing so much warning spew let me fix some minor
1618 real issues in debug logging.
1619
5779e6aa
PP
1620PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1621 assignment on my part. Fixed.
1622
3375e053
PP
1623PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1624 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1625 Janne Snabb (who went above and beyond: thank you).
1626
1627PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1628 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1629 relatively easy to get wrong. Should also expose TLS library linkage
1630 problems.
3375e053 1631
9d26b8c0
PP
1632PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1633 64-bit ${eval} (JH/03).
1634
57eb9e91 1635PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1636 GNU libc to support some of the 64-bit stuff, should not lead to
1637 conflicts. Defined before os.h is pulled in, so if a given platform
1638 needs to override this, it can.
1639
16880d1a
PP
1640PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1641 protection layer was required, which is not implemented.
1642 Bugzilla 1254, patch from Wolfgang Breyha.
1643
a799883d
PP
1644PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1645 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1646 tls_dhparam take prime identifiers. Also unbreak combination of
1647 OpenSSL+DH_params+TLSSNI.
1648
3ecab157 1649PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1650
0599f9cf 1651
867fcbf5
PP
1652Exim version 4.77
1653-----------------
1654
1655PP/01 Solaris build fix for Oracle's LDAP libraries.
1656 Bugzilla 1109, patch from Stephen Usher.
1657
f1a29782
TF
1658TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1659
ab42bd23
TK
1660TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1661 whitespace trailer
867fcbf5 1662
0ca0cf52
TF
1663TF/02 Fix a couple more cases where we did not log the error message
1664 when unlink() failed. See also change 4.74-TF/03.
1665
921b12ca
TF
1666TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1667 lock up or crash if it happened to be inside a call to libc when it
1668 got a SIGUSR1 from exiwhat.
1669
1670 The SIGUSR1 handler appends the current process status to the process
1671 log which is later printed by exiwhat. It used to use the general
1672 purpose logging code to do this, but several functions it calls are
1673 not safe for signals.
1674
1675 The new output code in the SIGUSR1 handler is specific to the process
1676 log, and simple enough that it's easy to inspect for signal safety.
1677 Removing some special cases also simplifies the general logging code.
1678 Removing the spurious timestamps from the process log simplifies
1679 exiwhat.
1680
c99ce5c9
TF
1681TF/04 Improved ratelimit ACL condition.
1682
1683 The /noupdate option has been deprecated in favour of /readonly which
1684 has clearer semantics. The /leaky, /strict, and /readonly update modes
1685 are mutually exclusive. The update mode is no longer included in the
1686 database key; it just determines when the database is updated. (This
4c04137d 1687 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1688
1689 Exim now checks that the per_* options are used with an update mode that
1690 makes sense for the current ACL. For example, when Exim is processing a
1691 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1692 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1693 must specify per_mail/readonly. If you omit the update mode it defaults to
1694 /leaky where that makes sense (as before) or /readonly where required.
1695
1696 The /noupdate option is now undocumented but still supported for
1697 backwards compatibility. It is equivalent to /readonly except that in
1698 ACLs where /readonly is required you may specify /leaky/noupdate or
1699 /strict/noupdate which are treated the same as /readonly.
1700
1701 A useful new feature is the /count= option. This is a generalization
1702 of the per_byte option, so that you can measure the throughput of other
1703 aggregate values. For example, the per_byte option is now equivalent
1704 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1705
1706 The per_rcpt option has been generalized using the /count= mechanism
1707 (though it's more complicated than the per_byte equivalence). When it is
1708 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1709 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1710 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1711 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1712 Note that using per_rcpt with a non-readonly update mode in more than
1713 one ACL will cause the recipients to be double-counted. (The per_mail
1714 and per_byte options don't have this problem.)
1715
1716 The handling of very low rates has changed slightly. If the computed rate
1717 is less than the event's count (usually one) then this event is the first
1718 after a long gap. In this case the rate is set to the same as this event's
1719 count, so that the first message of a spam run is counted properly.
1720
1721 The major new feature is a mechanism for counting the rate of unique
1722 events. The new per_addr option counts the number of different
1723 recipients that someone has sent messages to in the last time period. It
1724 behaves like per_rcpt if all the recipient addresses are different, but
1725 duplicate recipient addresses do not increase the measured rate. Like
1726 the /count= option this is a general mechanism, so the per_addr option
1727 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1728 example, measure the rate that a client uses different sender addresses
1729 with the options per_mail/unique=$sender_address. There are further
1730 details in the main documentation.
1731
3634fc25
TF
1732TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1733
792e8a19
TF
1734TF/06 Removed a few PCRE remnants.
1735
5901f0ab
TF
1736TF/07 Automatically extract Exim's version number from tags in the git
1737 repository when doing development or release builds.
1738
7f2a2a43
PP
1739PP/02 Raise smtp_cmd_buffer_size to 16kB.
1740 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1741
061b7ebd
PP
1742PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1743 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1744 Bugzilla 97.
1745
e12f8c32
PP
1746PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1747
9e949f00 1748PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1749 Bugzilla 1078. Patch from John Horne.
1750
1751PP/06 Stop make process more reliably on build failure.
1752 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1753
555ae6af 1754PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1755 Bugzilla 1089. Patch from Heiko Schlittermann.
1756
1757PP/08 Handle ${run} returning more data than OS pipe buffer size.
1758 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1759
6f7fe114
PP
1760PP/09 Handle IPv6 addresses with SPF.
1761 Bugzilla 860. Patch from Wolfgang Breyha.
1762
c566dd90
PP
1763PP/10 GnuTLS: support TLS 1.2 & 1.1.
1764 Bugzilla 1156.
89f897c3
PP
1765 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1766 Bugzilla 1095.
c566dd90 1767
d6cc7c78 1768PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1769 New compile-time build option, EXPAND_LISTMATCH_RHS.
1770 New expansion conditions, "inlist", "inlisti".
1771
0d0e4455
PP
1772PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1773
3399bb60 1774PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1775
1776PP/14 fix log_write() format string regression from TF/03.
1777 Bugzilla 1152. Patch from Dmitry Isaikin.
1778
0ca0cf52 1779
10906672
PP
1780Exim version 4.76
1781-----------------
1782
1783PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1784
754a0503
PP
1785PP/02 Harmonised TLS library version reporting; only show if debugging.
1786 Layout now matches that introduced for other libraries in 4.74 PP/03.
1787
c0c7b2da
PP
1788PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1789
e97d1f08
PP
1790PP/04 New "dns_use_edns0" global option.
1791
084c1d8c
PP
1792PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1793 Bugzilla 1098.
1794
4e7ee012
PP
1795PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1796 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1797
c8d52a00
PP
1798TK/01 Updated PolarSSL code to 0.14.2.
1799 Bugzilla 1097. Patch from Andreas Metzler.
1800
54e7ce4a
PP
1801PP/07 Catch divide-by-zero in ${eval:...}.
1802 Fixes bugzilla 1102.
1803
5ee6f336
PP
1804PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1805 Bugzilla 1104.
1806
c8d52a00 1807TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1808 format-string attack -- SECURITY: remote arbitrary code execution.
1809
1810TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1811 time unintentionally subject to list matching rules, letting the header
1812 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1813 arbitrary string expansion). This allowed for information disclosure.
1814
1815PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1816 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1817
10906672 1818
aa097c4c
NM
1819Exim version 4.75
1820-----------------
1821
4c04137d 1822NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1823 Bugzilla 1073
1824
7f3d9eff
TF
1825TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1826 This fixes portability to compilers other than gcc, notably
1827 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1828
159f52d2
TF
1829TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1830 makefiles for portability to HP-UX and POSIX correctness.
1831
0cc9542a
PP
1832PP/01 Permit LOOKUP_foo enabling on the make command-line.
1833 Also via indented variable definition in the Makefile.
1834 (Debugging by Oliver Heesakkers).
1835
f7274286
PP
1836PP/02 Restore caching of spamd results with expanded spamd_address.
1837 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1838
7b797365
PP
1839PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1840 Improves build reliability. Fix from: Frank Elsner
1841
caacae52
NM
1842NM/02 Fix wide character breakage in the rfc2047 coding
1843 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1844
09dcaba9
NM
1845NM/03 Allow underscore in dnslist lookups
1846 Fixes bug 1026. Patch from Graeme Fowler
1847
bc19a55b
PP
1848PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1849 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1850
bd4c9759
NM
1851NM/04 Fixed exiqgrep to cope with mailq missing size issue
1852 Fixes bug 943.
1853
b72aab72
PP
1854PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1855 is logged, to avoid truncation. Patch from John Horne.
1856
2fe76745
PP
1857PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1858 Patch from Jakob Hirsch.
1859
76aa570c
PP
1860PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1861 SQL string expansion failure details.
1862 Patch from Andrey Oktyabrski.
1863
f1e5fef5
PP
1864PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1865 Patch from Simon Arlott.
1866
4d805ee9
PP
1867PP/09 New lookups functionality failed to compile on old gcc which rejects
1868 extern declarations in function scope.
1869 Patch from Oliver Fleischmann
1870
cd59ab18
PP
1871PP/10 Use sig_atomic_t for flags set from signal handlers.
1872 Check getgroups() return and improve debugging.
1873 Fixed developed for diagnosis in bug 927 (which turned out to be
1874 a kernel bug).
1875
332f5cf3
PP
1876PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1877 Patch from Mark Zealey.
1878
29cfeb94
PP
1879PP/12 Bugzilla 1056: Improved spamd server selection.
1880 Patch from Mark Zealey.
1881
660242ad
PP
1882PP/13 Bugzilla 1086: Deal with maildir quota file races.
1883 Based on patch from Heiko Schlittermann.
1884
bc4bc4c5
PP
1885PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1886 Patch from Uwe Doering, sign-off by Michael Haardt.
1887
2e64baa9
NM
1888NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1889 variable declaration deep within a block. Bug and patch from
1890 Dennis Davis.
1891
4c04137d 1892PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1893
6bac1a9a
PP
1894PP/16 Make DISABLE_DKIM build knob functional.
1895
552193f0
NM
1896NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1897 Patch by Simon Arlott
baeee2c1 1898
1b587e48
TF
1899TF/03 Fix valgrind.h portability to C89 compilers that do not support
1900 variable argument macros. Our copy now differs from upstream.
1901
aa097c4c 1902
8c07b69f
TF
1903Exim version 4.74
1904-----------------
1905
1906TF/01 Failure to get a lock on a hints database can have serious
1907 consequences so log it to the panic log.
1908
c0ea85ab
TF
1909TF/02 Log LMTP confirmation messages in the same way as SMTP,
1910 controlled using the smtp_confirmation log selector.
1911
0761d44e
TF
1912TF/03 Include the error message when we fail to unlink a spool file.
1913
0a349494
PP
1914DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1915 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1916 for maintaining out-of-tree patches for some time.
1917
1918PP/01 Bugzilla 139: Documentation and portability issues.
1919 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1920 Handle per-OS dynamic-module compilation flags.
1921
fea24b2e
PP
1922PP/02 Let /dev/null have normal permissions.
1923 The 4.73 fixes were a little too stringent and complained about the
1924 permissions on /dev/null. Exempt it from some checks.
1925 Reported by Andreas M. Kirchwitz.
1926
6545de78
PP
1927PP/03 Report version information for many libraries, including
1928 Exim version information for dynamically loaded libraries. Created
1929 version.h, now support a version extension string for distributors
1930 who patch heavily. Dynamic module ABI change.
1931
1670ef10
PP
1932PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1933 privilege escalation vulnerability whereby the Exim run-time user
1934 can cause root to append content of the attacker's choosing to
1935 arbitrary files.
1936
c0886197
PP
1937PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1938 (Wolfgang Breyha)
1939
b7487bce
PP
1940PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1941 If dropping privileges for untrusted macros, we disabled normal logging
1942 on the basis that it would fail; for the Exim run-time user, this is not
1943 the case, and it resulted in successful deliveries going unlogged.
1944 Fixed. Reported by Andreas Metzler.
1945
8c07b69f 1946
97fd1e48 1947Exim version 4.73
ed7f7860 1948-----------------
97fd1e48
PP
1949
1950PP/01 Date: & Message-Id: revert to normally being appended to a message,
1951 only prepend for the Resent-* case. Fixes regression introduced in
1952 Exim 4.70 by NM/22 for Bugzilla 607.
1953
6901c596
PP
1954PP/02 Include check_rfc2047_length in configure.default because we're seeing
1955 increasing numbers of administrators be bitten by this.
1956
a8c8d6b5
JJ
1957JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1958
77bb000f
PP
1959PP/03 Bugzilla 994: added openssl_options main configuration option.
1960
a29e5231
PP
1961PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1962
ec5a0394 1963PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 1964
55c75993
PP
1965PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1966
453a6645 1967PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
1968 without a peer certificate, leading to a segfault because of an
1969 assumption that peers always have certificates. Be a little more
453a6645
PP
1970 paranoid. Problem reported by Martin Tscholak.
1971
8544e77a
PP
1972PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1973 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1974 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
1975 CL also introduces -bmalware, various -d+acl logging additions and
1976 more caution in buffer sizes.
8544e77a 1977
83e029d5
PP
1978PP/09 Implemented reverse_ip expansion operator.
1979
ed7f7860
PP
1980PP/10 Bugzilla 937: provide a "debug" ACL control.
1981
7d9f747b
PP
1982PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1983
4b2241d2
PP
1984PP/12 Bugzilla 973: Implement --version.
1985
10385c15
PP
1986PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1987
dbc4b90d
PP
1988PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1989
532be449
PP
1990PP/15 Bugzilla 816: support multiple condition rules on Routers.
1991
6a8de854 1992PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
1993 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
1994 ignore trailing whitespace.
6a8de854 1995
5dc43717
JJ
1996JJ/02 prevent non-panic DKIM error from being sent to paniclog
1997
1998JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
1999 "exim" to be used
55c75993 2000
3346ab01
PP
2001PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2002 Notification from Dr Andrew Aitchison.
2003
491fab4c
PP
2004PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2005 ExtendedDetectionInfo response format.
2006 Notification from John Horne.
2007
13eb9497
PP
2008PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2009 compatible.
2010
2011PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2012 XSL and documented dependency on system catalogs, with examples of how
2013 it normally works.
2014
7f36d675
DW
2015DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2016 access.
2017
c1d94452
DW
2018DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2019 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2020 configuration file which is writeable by the Exim user or group.
2021
e2f5dc15
DW
2022DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2023 of configuration files to cover files specified with the -C option if
2024 they are going to be used with root privileges, not just the default
2025 configuration file.
2026
cd25e41d
DW
2027DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2028 option (effectively making it always true).
2029
261dc43e
DW
2030DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2031 files to be used while preserving root privileges.
2032
fa32850b
DW
2033DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2034 that rogue child processes cannot use them.
2035
79d4bc3d
PP
2036PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2037 run-time user, instead of root.
2038
43236f35 2039PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2040 Exim run-time user without dropping privileges.
2041
fb08281f
DW
2042DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2043 result string, instead of calling string_vformat() twice with the same
2044 arguments.
3346ab01 2045
74935b98
DW
2046DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2047 for other users. Others should always drop root privileges if they use
2048 -C on the command line, even for a whitelisted configure file.
2049
90b6341f
DW
2050DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2051
57730b52
ML
2052NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2053
66581d1e 2054
465e92cf
JJ
2055Exim version 4.72
2056-----------------
2057
453a6645
PP
2058JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2059 $data_path, and $header_path variables; fixed documentation bugs and
2060 typos
465e92cf 2061
453a6645
PP
2062JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2063 exipick to access non-standard spools, including the "frozen" queue
2064 (Finput)
edae0343 2065
9bd3e22c
NM
2066NM/01 Bugzilla 965: Support mysql stored procedures.
2067 Patch from Alain Williams
2068
bb576ff7
NM
2069NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2070
5a1a5845
NM
2071NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2072 Patch from Andreas Metzler
2073
981a9fad
NM
2074NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2075 Patch from Kirill Miazine
2076
7fc497ee
NM
2077NM/05 Bugzilla 671: Added umask to procmail example.
2078
1a41defa
JJ
2079JJ/03 installed exipick 20100323.0, fixing doc bug
2080
a466095c 2081NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2082 directory. Notification and patch from Dan Rosenberg.
a466095c 2083
94a6bd0b
NM
2084TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2085
2086TK/02 Improve log output when DKIM signing operation fails.
2087
2088MH/01 Treat the transport option dkim_domain as a colon separated
2089 list, not as a single string, and sign the message with each element,
2090 omitting multiple occurences of the same signer.
2091
c1b141a8
NM
2092NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2093 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2094
b26eacf1 2095NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2096 Patch by Simon Arlott
2097
179c5980 2098PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2099 MBX locking. Notification from Dan Rosenberg.
179c5980 2100
9bd3e22c 2101
7c6d71af
NM
2102Exim version 4.71
2103-----------------
2104
7d9f747b 2105TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2106
f013fb92
NM
2107NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2108
0eb8eedd
NM
2109NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2110
663ee6d9
NM
2111NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2112
177ebd9b
NM
2113NM/04 Bugzilla 915: Flag broken perl installation during build.
2114
7c6d71af 2115
210f147e
NM
2116Exim version 4.70
2117-----------------
2118
cdd3bb85 2119TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2120 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2121
2122TK/02 Write list of recipients to X-Envelope-Sender header when building
2123 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2124 Hirsch).
cdd3bb85
TK
2125
2126TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2127 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2128 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2129
2130TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2131 by Mark Daniel Reidel <mr@df.eu>.
2132
210f147e
NM
2133NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2134 When building exim an external PCRE library is now needed -
2135 PCRE is a system library on the majority of modern systems.
2136 See entry on PCRE_LIBS in EDITME file.
2137
deafd5b3
NM
2138NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2139 conversation. Added nologin parameter to request.
7d9f747b 2140 Patch contributed by Kirill Miazine.
deafd5b3 2141
089793a4
TF
2142TF/01 Do not log submission mode rewrites if they do not change the address.
2143
5f16ca82
TF
2144TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2145
dae9d94e 2146NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2147 log files in place. Contributed by Roberto Lima.
dae9d94e 2148
7d9f747b 2149NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2150
06864c44
TF
2151TF/03 Bugzilla 615: When checking the local_parts router precondition
2152 after a local_part_suffix or local_part_prefix option, Exim now
2153 does not use the address's named list lookup cache, since this
2154 contains cached lookups for the whole local part.
2155
65a7d8c3 2156NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2157 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2158
23510047 2159TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2160
7d9f747b 2161NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2162
7d8eec3a 2163NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2164 Patch provided by Jan Srzednicki.
6c588e74 2165
89dec7b6
TF
2166TF/05 Leading white space used to be stripped from $spam_report which
2167 wrecked the formatting. Now it is preserved.
5f28a6e8 2168
a99de90c
TF
2169TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2170 that they are available at delivery time.
2171
e2803e40
TF
2172TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2173
7199e1ee
TF
2174TF/08 TLS error reporting now respects the incoming_interface and
2175 incoming_port log selectors.
2176
e276e04b
TF
2177TF/09 Produce a more useful error message if an SMTP transport's hosts
2178 setting expands to an empty string.
2179
ce552449 2180NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2181 Patch provided by Phil Pennock.
ce552449 2182
e765a0f1 2183NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2184 Patch provided by Richard Godbee.
e765a0f1 2185
4f054c63 2186NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2187 acl_smtp_notquit, added index entry.
4f054c63 2188
7d9f747b
PP
2189NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2190 Patch provided by Eugene Bujak.
24c929a2 2191
7d9f747b
PP
2192NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2193 accept(). Patch provided by Maxim Dounin.
cf73943b 2194
b52bc06e 2195NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2196 Patch provided by Phil Pennock.
b52bc06e 2197
447de4b0
NM
2198NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2199
4c69d561 2200NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2201 Patch provided by Brad "anomie" Jorsch.
4c69d561 2202
d5c39246 2203NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2204 Patch provided by Dean Brooks.
9b989985 2205
0b23848a
TK
2206TK/05 Add native DKIM support (does not depend on external libraries).
2207
8f3414a1 2208NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2209 Patch provided by Graeme Fowler.
e2aacdfd 2210
fb6f955d
NM
2211NM/16 Bugzilla 851: Documentation example syntax fix.
2212
2213NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2214
7d9f747b
PP
2215NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2216 lsearch.
dbb0bf41 2217
7d9f747b
PP
2218NM/19 Bugzilla 745: TLS version reporting.
2219 Patch provided by Phil Pennock.
f3766eb5 2220
7d9f747b
PP
2221NM/20 Bugzilla 167: bool: condition support.
2222 Patch provided by Phil Pennock.
36f12725 2223
7d9f747b
PP
2224NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2225 clients. Patch provided by Phil Pennock.
e6060e2c 2226
7d9f747b
PP
2227NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2228 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2229
7d9f747b
PP
2230NM/23 Bugzilla 687: Fix misparses in eximstats.
2231 Patch provided by Heiko Schlittermann.
d5c13d66 2232
7d9f747b
PP
2233NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2234 Patch provided by Heiko Schlittermann.
b2335c0b 2235
7d9f747b 2236NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2237 plus update to original patch.
f4cd9433 2238
7d9f747b 2239NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2240
7d9f747b
PP
2241NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2242 Patch provided by David Brownlee.
8dc71ab3 2243
7d9f747b 2244NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2245
7d9f747b 2246NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2247
7d9f747b 2248NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2249
7d9f747b 2250NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2251
17792b53 2252NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2253 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2254
7d9f747b
PP
2255NM/33 Bugzilla 898: Transport filter timeout fix.
2256 Patch by Todd Rinaldo.
52383f8f 2257
91576cec 2258NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2259 Patch by Serge Demonchaux.
5ca6d115 2260
7d9f747b
PP
2261NM/35 Bugzilla 39: Base64 decode bug fixes.
2262 Patch by Jakob Hirsch.
baee9eee 2263
7d9f747b 2264NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2265
7d9f747b 2266NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2267
7d9f747b 2268NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2269
7d9f747b 2270NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2271
deafd5b3 2272
47db1125
NM
2273Exim version 4.69
2274-----------------
2275
4b3504d0
TK
2276TK/01 Add preliminary DKIM support. Currently requires a forked version of
2277 ALT-N's libdkim that I have put here:
2278 http://duncanthrax.net/exim-experimental/
2279
2280 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2281 were called 'true' and it seems that C99 defines that as a reserved
2282 keyword to be used with 'bool' variable types. That means you could
2283 not include C99-style headers which use bools without triggering
2284 build errors in sieve.c.
2285
81ea09ca
NM
2286NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2287 as mailq or other aliases. Changed the --help handling significantly
2288 to do whats expected. exim_usage() emits usage/help information.
2289
f13cddcb
SC
2290SC/01 Added the -bylocaldomain option to eximstats.
2291
7d9f747b 2292NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2293
7d9f747b 2294NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2295
7d9f747b 2296NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2297
2298
eb4c0de6
PH
2299Exim version 4.68
2300-----------------
2301
2302PH/01 Another patch from the Sieve maintainer.
2303
6a3bceb1
PH
2304PH/02 When an IPv6 address is converted to a string for single-key lookup
2305 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2306 dots are used instead of colons so that keys in lsearch files need not
2307 contain colons. This was done some time before quoting was made available
2308 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2309 (notated using the quote facility) so as to distinguish them from IPv4
2310 keys. This meant that lookups for IP addresses in host lists did not work
2311 for iplsearch lookups.
2312
2313 This has been fixed by arranging for IPv6 addresses to be expressed with
2314 colons if the lookup type is iplsearch. This is not incompatible, because
2315 previously such lookups could never work.
2316
4c04137d 2317 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2318 ordinary lsearch keys. However, making the change in all cases is
2319 incompatible and would probably break a number of configurations.
2320
2e30fa9d
TK
2321TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2322 version.
2323
0806a9c5
MH
2324MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2325 conversion specification without a maximum field width, thereby enabling
2326 a rogue spamd server to cause a buffer overflow. While nobody in their
2327 right mind would setup Exim to query an untrusted spamd server, an
2328 attacker that gains access to a server running spamd could potentially
2329 exploit this vulnerability to run arbitrary code as the Exim user.
2330
ae276964
TK
2331TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2332 $primary_hostname instead of what libspf2 thinks the hosts name is.
2333
0f2cbd1b
MH
2334MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2335 a directory entry by the name of the lookup key. Previously, if a
2336 symlink pointed to a non-existing file or a file in a directory that
2337 Exim lacked permissions to read, a lookup for a key matching that
2338 symlink would fail. Now it is enough that a matching directory entry
2339 exists, symlink or not. (Bugzilla 503.)
2340
2b85bce7
PH
2341PH/03 The body_linecount and body_zerocount variables are now exported in the
2342 local_scan API.
2343
93655c46
PH
2344PH/04 Added the $dnslist_matched variable.
2345
6c512171
PH
2346PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2347 This means they are set thereafter only if the connection becomes
2348 encrypted.
2349
2350PH/06 Added the client_condition to authenticators so that some can be skipped
2351 by clients under certain conditions.
2352
aa6dc513
PH
2353PH/07 The error message for a badly-placed control=no_multiline_responses left
2354 "_responses" off the end of the name.
2355
a96603a0
PH
2356PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2357
8f240103
PH
2358PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2359 (without spaces) instead of just copying the configuration text.
2360
2361PH/10 Added the /noupdate option to the ratelimit ACL condition.
2362
d677b2f2
PH
2363PH/11 Added $max_received_linelength.
2364
d52120f2
PH
2365PH/12 Added +ignore_defer and +include_defer to host lists.
2366
64f2600a
PH
2367PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2368 way in which PCRE > 7.0 is built.
2369
8669f003
PH
2370PH/14 Implemented queue_only_load_latch.
2371
a4dc33a8
PH
2372PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2373 MAIL command. The effect was to mangle the value on 64-bit systems.
2374
d6a60c0f
PH
2375PH/16 Another patch from the Sieve maintainer.
2376
8f128379
PH
2377PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2378
8932dffe
PH
2379PH/18 If a system quota error occurred while trying to create the file for
2380 a maildir delivery, the message "Mailbox is full" was not appended to the
2381 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2382 only to a quota excession during the actual writing of the file.
d6a60c0f 2383
ddea74fa 2384PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2385 characters?) which causes problems in log lines. The DN values are now
2386 passed through string_printing() before being added to log lines.
2387
ddea74fa 2388PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2389 and InterBase are left for another time.)
2390
ddea74fa
PH
2391PH/21 Added message_body_newlines option.
2392
ce9f225c
PH
2393PH/22 Guard against possible overflow in moan_check_errorcopy().
2394
19897d52
PH
2395PH/23 POSIX allows open() to be a macro; guard against that.
2396
bc64a74d
PH
2397PH/24 If the recipient of an error message contained an @ in the local part
2398 (suitably quoted, of course), incorrect values were put in $domain and
2399 $local_part during the evaluation of errors_copy.
2400
eb4c0de6 2401
b4ed4da0
PH
2402Exim version 4.67
2403-----------------
2404
22ad45c9
MH
2405MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2406 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2407 Jan Srzednicki.
2408
b4ed4da0
PH
2409PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2410 issue a MAIL command.
2411
431b7361
PH
2412PH/02 In an ACL statement such as
2413
2414 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2415
2416 if a client was not listed at all, or was listed with a value other than
2417 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2418 the condition was not true (as it should be), so access was not denied.
2419 The bug was that the ! inversion was incorrectly passed on to the second
2420 item. This has been fixed.
2421
2422PH/03 Added additional dnslists conditions == and =& which are different from
2423 = and & when the dns lookup returns more than one IP address.
2424
83da1223
PH
2425PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2426 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2427
54fc8428
PH
2428PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2429 FSYNC, which compiles an option called disable_fsync that allows for
2430 bypassing fsync(). The documentation is heavily laced with warnings.
2431
34c5e8dd
SC
2432SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2433
bbe15da8
PH
2434PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2435 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2436 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2437 including adding "make clean"; (3) Added -fPIC when compiling the test
2438 dynamically loaded module, to get rid of a warning.
2439
0e8a9471
MH
2440MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2441 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2442 = 0s. The bug is otherwise harmless.
2443
f0872424
PH
2444PH/07 There was a bug in the dovecot authenticator such that the value of
2445 $auth1 could be overwritten, and so not correctly preserved, after a
2446 successful authentication. This usually meant that the value preserved by
2447 the server_setid option was incorrect.
2448
b01dd148
PH
2449PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2450
6bf342e1
PH
2451PH/09 Installed PCRE release 7.0.
2452
273f34d0
PH
2453PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2454 run for batched SMTP input. It is now run at the start of every message
2455 in the batch. While fixing this I discovered that the process information
2456 (output by running exiwhat) was not always getting set for -bs and -bS
2457 input. This is fixed, and it now also says "batched" for BSMTP.
2458
cf8b11a5
PH
2459PH/11 Added control=no_pipelining.
2460
41c7c167
PH
2461PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2462 patch, slightly modified), and move the expansion of helo_data till after
2463 the connection is made in the smtp transport (so it can use these
2464 values).
2465
9c57cbc0
PH
2466PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2467
f3f065bb
PH
2468PH/14 Added log_selector = +pid.
2469
047bdd8c
PH
2470PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2471
0ce9abe6
PH
2472PH/16 Add ${if forany and ${if forall.
2473
0e22dfd1
PH
2474PH/17 Added dsn_from option to vary the From: line in DSNs.
2475
4c590bd1
PH
2476PH/18 Flush SMTP output before performing a callout, unless control =
2477 no_callout_flush is set.
2478
09945f1e
PH
2479PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2480 was true (the default) a successful delivery failed to delete the retry
2481 item, thus causing premature timeout of the address. The bug is now
2482 fixed.
2483
c51b8e75
PH
2484PH/20 Added hosts_avoid_pipelining to the smtp transport.
2485
e28326d8 2486PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2487 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2488 other ACL rejections are.
2489
75b1493f
PH
2490PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2491 with slight modification.
2492
7c5214ec
PH
2493PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2494 draft, changing the syntax and factoring some duplicate code".
2495
4311097e
PH
2496PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2497 for deliveries of the second and subsequent messages over the same SMTP
2498 connection.
2499
29f89cad
PH
2500PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2501 ${reduce, with only minor "tidies".
2502
5e687460
SC
2503SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2504
c3611384
PH
2505PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2506 expansion side effects.
2507
5a11a7b4
PH
2508PH/27 When a message times out after an over-quota error from an Exim-imposed
2509 quota, the bounce message says "mailbox is full". This message was not
2510 being given when it was a system quota that was exceeded. It now should
2511 be the same.
2512
0e20aff9
MH
2513MH/03 Made $recipients available in local_scan(). local_scan() already has
2514 better access to the recipient list through recipients_list[], but
2515 $recipients can be useful in postmaster-provided expansion strings.
2516
ca86f471
PH
2517PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2518 in the case of a MAIL command with additional options following the
2519 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2520 were accidentally chopped off.
2521
a14e5636
PH
2522PH/29 SMTP synchronization checks are implemented when a command is read -
2523 there is a check that no more input is waiting when there shouldn't be
2524 any. However, for some commands, a delay in an ACL can mean that it is
2525 some time before the response is written. In this time, more input might
2526 arrive, invalidly. So now there are extra checks after an ACL has run for
2527 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2528 pipelining has not been advertised.
2529
ec95d1a6
PH
2530PH/30 MH's patch to allow iscntrl() characters to be list separators.
2531
42855d71
PH
2532PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2533 returned in the SMTP response when smtp_return_error_details was false.
2534 This has been fixed.
2535
57c2c631
PH
2536PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2537 instead of the C I/O that was originally supplied, because problems were
2538 reported on Solaris.
2539
58c01c94
PH
2540PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2541 Exim which did not show up earlier: it was assuming that a call to
2542 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2543 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2544 was a macro that became an assignment, so it seemed to work. This has
2545 changed to a proper function call with a void return, hence the compile
2546 error. Exim's code has been fixed.
2547
dee5a20a
PH
2548PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2549 cpus.
2550
d2ee6114
PH
2551PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2552
b2d5182b
PH
2553PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2554
79749a79
PH
2555PH/37 If a message is not accepted after it has had an id assigned (e.g.
2556 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2557 "Completed" line in the log. When some messages of this type were
2558 selected by exigrep, they were listed as "not completed". Others were
2559 picked up by some special patterns. I have improved the selection
2560 criteria to be more general.
79749a79 2561
c456d9bb
PH
2562PH/38 The host_find_failed option in the manualroute router can now be set
2563 to "ignore", to completely ignore a host whose IP address cannot be
2564 found. If all hosts are ignored, the behaviour is controlled by the new
2565 host_all_ignored option.
2566
cd9868ec
PH
2567PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2568 homing or because of multiple MX records with /mx) generated more than
2569 one IP address, and the following item turned out to be the local host,
2570 all the secondary addresses of the first item were incorrectly removed
2571 from the list, along with the local host and any following hosts (which
2572 is what is supposed to happen).
2573
ebeaf996
PH
2574PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2575 whoever called Exim into the -H file. In the case of the daemon it was
2576 behaving confusingly. When first started, it used values for whoever
2577 started the daemon, but after a SIGHUP it used the Exim user (because it
2578 calls itself on a restart). I have changed the code so that it now always
2579 uses the Exim user.
2580
2679d413
PH
2581PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2582 message are rejected with the same error (e.g. no authentication or bad
2583 sender address), and a DATA command is nevertheless sent (as can happen
2584 with PIPELINING or a stupid MUA), the error message that was given to the
2585 RCPT commands is included in the rejection of the DATA command. This is
2586 intended to be helpful for MUAs that show only the final error to their
2587 users.
2588
84024b72
PH
2589PH/42 Another patch from the Sieve maintainer.
2590
8005d38e
SC
2591SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2592 Eximstats - Fixed some broken HTML links and added missing column headers
2593 (Jez Hancock).
2594 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2595 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2596
3298c6c6
SC
2597SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2598
a43a27c5
PH
2599PH/43 Yet another patch from the Sieve maintainer.
2600
58eb016e 2601PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2602 the response to the final '.' that terminates a message, but only in the
2603 case where the client has not sent further data following the '.'
2604 (unfortunately, this is allowed). However, in many cases there won't be
2605 any further data because there won't be any more messages to send. A call
2606 to select() can be used: if it shows that the input is "ready", there is
2607 either input waiting, or the socket has been closed. An attempt to read
2608 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2609 would have sent an OK response which the client would never have see.
563b63fa
PH
2610 This could lead to message repetition. This fix should cure that, at
2611 least in a lot of common cases.
58eb016e 2612
b43a74ea
PH
2613PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2614 advertised in response to EHLO.
2615
b4ed4da0 2616
5dd1517f
PH
2617Exim version 4.66
2618-----------------
2619
2620PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2621 fixed by 4.65/MH/01 (is this a record?) are fixed:
2622
2623 (i) An empty string was always treated as zero by the numeric comparison
2624 operators. This behaviour has been restored.
2625
2626 (ii) It is documented that the numeric comparison operators always treat
2627 their arguments as decimal numbers. This was broken in that numbers
2628 starting with 0 were being interpreted as octal.
2629
2630 While fixing these problems I realized that there was another issue that
2631 hadn't been noticed. Values of message_size_limit (both the global option
2632 and the transport option) were treated as octal if they started with 0.
2633 The documentation was vague. These values are now always treated as
2634 decimal, and I will make that clear in the documentation.
2635
2636
93cfa765
TK
2637Exim version 4.65
2638-----------------
2639
2640TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2641 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2642 versions. (#438)
2643
d6066548
MH
2644MH/01 Don't check that the operands of numeric comparison operators are
2645 integers when their expansion is in "skipping" mode (fixes bug
2646 introduced by 4.64-PH/07).
2647
4362ff0d
PH
2648PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2649 child addresses, Exim now panics and dies. Previously, because the count
2650 is held in a short int, deliveries were likely to be lost. As such a
2651 large number of recipients for a single message is ridiculous
2652 (performance will be very, very poor), I have chosen to impose a limit
2653 rather than extend the field.
2654
93cfa765 2655
944e9e9c
TF
2656Exim version 4.64
2657-----------------
aa41d2de 2658
21d74bd9
TK
2659TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2660 leftover -K file (the existence of which was triggered by #402).
2661 While we were at it, introduced process PID as part of the -K
2662 filename. This should rule out race conditions when creating
2663 these files.
2664
2665TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2666 processing considerably. Previous code took too long for large mails,
2667 triggering a timeout which in turn triggers #401.
2668
2669TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2670 in the DK code in transports.c. sendfile() is not really portable,
2671 hence the _LINUX specificness.
944e9e9c
TF
2672
2673TF/01 In the add_headers option to the mail command in an Exim filter,
2674 there was a bug that Exim would claim a syntax error in any
2675 header after the first one which had an odd number of characters
2676 in the field name.
2677
2b1c6e3a
PH
2678PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2679 callout verification, Exim cached a "reject" for the entire domain. This
2680 is correct for most verifications, but it is not correct for a recipient
2681 verification with use_sender or use_postmaster set, because in that case
2682 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2683 case of MAIL FROM:<> rejection from other early rejections (e.g.
2684 rejection of HELO). When verifying a recipient using a non-null MAIL
2685 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2686 Whatever the result of the callout, the value of the domain cache is
2687 left unchanged (for any other kind of callout, getting as far as trying
2688 RCPT means that the domain itself is ok).
2689
1f872c80
PH
2690PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2691 gcc 4.1.1 threw up.
2692
2693PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2694 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2695 session, the daemon ignores ECONNECT errors and logs others; it now
2696 ignores EPIPE as well.
2697
d203e649
PH
2698PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2699 (quoted-printable decoding).
2700
cc2ed8f7 2701PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2702 later the small subsequent patch to fix an introduced bug.
f951fd57 2703
ddfcd446
PH
2704PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2705
d45b1de8
PH
2706PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2707
2708PH/08 An error is now given if message_size_limit is specified negative.
2709
38a0a95f 2710PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2711 to be given (somewhat) arbitrary names.
38a0a95f 2712
a2405d83
JJ
2713JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2714 in 4.64-PH/09.
2715
2716JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2717 miscellaneous code fixes
2718
6ea85e9a
PH
2719PH/10 Added the log_reject_target ACL modifier to specify where to log
2720 rejections.
2721
26da7e20
PH
2722PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2723 hostname. This is wrong, because it relates to the incoming message (and
2724 probably the interface on which it is arriving) and not to the outgoing
2725 callout (which could be using a different interface). This has been
2726 changed to use the value of the helo_data option from the smtp transport
2727 instead - this is what is used when a message is actually being sent. If
2728 there is no remote transport (possible with a router that sets up host
2729 addresses), $smtp_active_hostname is used.
6ea85e9a 2730
14aa5a05 2731PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2732 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2733 (a) The code assumed that strncpy() returns a negative number on buffer
2734 overflow, which isn't the case. Replaced with Exim's string_format()
2735 function.
2736 (b) There were several signed/unsigned issues. I just did the minimum
2737 hacking in of casts. There is scope for a larger refactoring.
2738 (c) The code used strcasecmp() which is not a standard C function.
2739 Replaced with Exim's strcmpic() function.
2740 (d) The code set only $1; it now sets $auth1 as well.
2741 (e) A simple test gave the error "authentication client didn't specify
2742 service in request". It would seem that Dovecot has changed its
2743 interface. Fortunately there's a specification; I followed it and
2744 changed what the client sends and it appears to be working now.
2745
ff75a1f7
PH
2746PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2747 decoding.
2748
e6f6568e
PH
2749PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2750 address A is aliased to B and C, where B exists and C does not. Without
2751 -v the output is "A verified" because verification stops after a
2752 successful redirection if more than one address is generated. However,
2753 with -v the child addresses are also verified. Exim was outputting "A
2754 failed to verify" and then showing the successful verification for C,
2755 with its parentage. It now outputs "B failed to verify", showing B's
2756 parentage before showing the successful verification of C.
2757
d6f6e0dc
PH
2758PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2759 look up a TXT record in a specific list after matching in a combined
2760 list.
2761
322050c2
PH
2762PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2763 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2764 they consult the DNS. I had assumed they would set it the way they
2765 wanted; and indeed my experiments on Linux seem to show that in some
2766 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2767 To be on the safe side, however, I have now made the interface to
2768 host_find_byname() similar to host_find_bydns(), with an argument
2769 containing the DNS resolver options. The host_find_byname() function now
2770 sets these options at its start, just as host_find_bydns() does. The smtp
2771 transport options dns_qualify_single and dns_search_parents are passed to
2772 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2773 of host_find_byname() use the default settings of RES_DEFNAMES
2774 (qualify_single) but not RES_DNSRCH (search_parents).
2775
08955dd3
PH
2776PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2777 spool_read_header() do less string testing, by means of a preliminary
2778 switch on the second character of optional "-foo" lines. (This is
2779 overdue, caused by the large number of possibilities that now exist.
2780 Originally there were few.) While I was there, I also converted the
2781 str(n)cmp tests so they don't re-test the leading "-" and the first
2782 character, in the hope this might squeeze out yet more improvement.
2783
1eccaa59
PH
2784PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2785 flag allowing group syntax was set by the header_syntax check but not
2786 turned off, possible causing trouble later; (2) The flag was not being
2787 set at all for the header_verify test, causing "group"-style headers to
2788 be rejected. I have now set it in this case, and also caused header_
2789 verify to ignore an empty address taken from a group. While doing this, I
2790 came across some other cases where the code for allowing group syntax
2791 while scanning a header line wasn't quite right (mostly, not resetting
2792 the flag correctly in the right place). These bugs could have caused
2793 trouble for malformed header lines. I hope it is now all correct.
2794
602e59e5
PH
2795PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2796 with the "reply" argument non-NULL. The code, however (which originally
2797 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2798 but it didn't always do it. This confused somebody who was copying the
2799 code for some other use. I have removed all the tests.
2800
411ef850
PH
2801PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2802 feature that was used to support insecure browsers during the U.S. crypto
2803 embargo. It requires special client support, and Exim is probably the
2804 only MTA that supported it -- and would never use it because real RSA is
2805 always available. This code has been removed, because it had the bad
2806 effect of slowing Exim down by computing (never used) parameters for the
2807 RSA_EXPORT functionality.
2808
7befa435
PH
2809PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2810 authenticator to fail if there's a tab character in the incoming data
2811 (there should never be unless someone is messing about, as it's supposed
2812 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2813 if the connection is using TLS or if the remote IP is the same as the
2814 local IP, and the "valid-client-cert option" if a client certificate has
2815 been verified.
2816
48da4259 2817PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2818 authenticators. This can be used for authorization after authentication
2819 succeeds. (In the case of plaintext, it servers for both authentication
2820 and authorization.)
2821
48da4259
PH
2822PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2823 if any retry times were supplied.
2824
d1d5595c
PH
2825PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2826 connection, where there is no client IP address to check. In this
2827 situation, the verify now always succeeds.
2828
0ef732d9
PH
2829PH/25 Applied John Jetmore's -Mset patch.
2830
328895cc
PH
2831PH/26 Added -bem to be like -Mset, but loading a message from a file.
2832
fd700877
PH
2833PH/27 In a string expansion for a processed (not raw) header when multiple
2834 headers of the same name were present, leading whitespace was being
2835 removed from all of them, but trailing whitespace was being removed only
2836 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2837 before concatenation. Completely empty headers in a concatenation (as
2838 before) are ignored.
fd700877 2839
8dce1a6f
PH
2840PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2841 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2842
17af4a17
PH
2843PH/29 [Removed. This was a change that I later backed out, and forgot to
2844 correct the ChangeLog entry (that I had efficiently created) before
2845 committing the later change.]
f6c332bd
PH
2846
2847PH/30 Exim was sometimes attempting to deliver messages that had suffered
2848 address errors (4xx response to RCPT) over the same connection as other
2849 messages routed to the same hosts. Such deliveries are always "forced",
2850 so retry times are not inspected. This resulted in far too many retries
2851 for the affected addresses. The effect occurred only when there were more
2852 hosts than the hosts_max_try setting in the smtp transport when it had
2853 the 4xx errors. Those hosts that it had tried were not added to the list
2854 of hosts for which the message was waiting, so if all were tried, there
2855 was no problem. Two fixes have been applied:
2856
2857 (i) If there are any address or message errors in an SMTP delivery, none
2858 of the hosts (tried or untried) are now added to the list of hosts
2859 for which the message is waiting, so the message should not be a
2860 candidate for sending over the same connection that was used for a
2861 successful delivery of some other message. This seems entirely
2862 reasonable: after all the message is NOT "waiting for some host".
2863 This is so "obvious" that I'm not sure why it wasn't done
2864 previously. Hope I haven't missed anything, but it can't do any
2865 harm, as the worst effect is to miss an optimization.
2866
2867 (ii) If, despite (i), such a delivery is accidentally attempted, the
2868 routing retry time is respected, so at least it doesn't keep
2869 hammering the server.
2870
c1114884
PH
2871PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2872 in ${readsocket because some servers need this prod.
2873
7a0743eb
PH
2874PH/32 Added some extra debug output when updating a wait-xxx database.
2875
0d85fa3f
PH
2876PH/33 The hint "could be header name not terminated by colon", which has been
2877 given for certain expansion errors for a long time, was not being given
2878 for the ${if def:h_colon_omitted{... case.
2879
1bf43b78
PH
2880PH/34 The spec says: "With one important exception, whenever a domain list is
2881 being scanned, $domain contains the subject domain." There was at least
2882 one case where this was not true.
2883
520de300
PH
2884PH/35 The error "getsockname() failed: connection reset by peer" was being
2885 written to the panic log as well as the main log, but it isn't really
2886 panic-worthy as it just means the connection died rather early on. I have
2887 removed the panic log writing for the ECONNRESET error when getsockname()
2888 fails.
2889
48c7f9e2
PH
2890PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2891 runs only) independently of the message's sender address. This meant
2892 that, if the 4xx error was in fact related to the sender, a different
2893 message to the same recipient with a different sender could confuse
4c04137d 2894 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2895 server, but other circumstances could also provoke similar problems.
2896 I have changed the default so that the retry time for these errors is now
2897 based a combination of the sender and recipient addresses. This change
2898 can be overridden by setting address_retry_include_sender=false in the
2899 smtp transport.
2900
99ea1c86
PH
2901PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2902 remote server are returned as part of bounce messages. This was not
2903 happening for LMTP over a pipe (the lmtp transport), but now it is the
2904 same for both kinds of LMTP.
2905
a2042e78
PH
2906PH/38 Despite being documented as not happening, Exim was rewriting addresses
2907 in header lines that were in fact CNAMEs. This is no longer the case.
2908
4fbcfc2e
PH
2909PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2910 and queue runs started by the daemon processed all messages. This has
2911 been fixed so that -R and -S can now usefully be given with -q<time>.
2912
aa41d2de
PH
2913PH/40 Import PCRE release 6.7 (fixes some bugs).
2914
af561417
PH
2915PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2916
3cc66b45
PH
2917PH/42 Give an error if -q is specified more than once.
2918
194cc0e4
PH
2919PH/43 Renamed the variables $interface_address and $interface_port as
2920 $received_ip_address and $received_port, to make it clear that these
2921 values apply to message reception, and not to the outgoing interface when
2922 a message is delivered. (The old names remain recognized, of course.)
2923
a401ddaa
PH
2924PH/44 There was no timeout on the connect() call when using a Unix domain
2925 socket in the ${readsocket expansion. There now is.
2926
4e88a19f
PH
2927PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2928 be meaningful with "accept".
2929
d7d7b289
SC
2930SC/01 Eximstats V1.43
2931 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2932
2933SC/02 Eximstats V1.44
2934 Use a glob alias rather than an array ref in the generated
2935 parser. This improves both readability and performance.
2936
2937SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2938 Collect SpamAssassin and rejection statistics.
2939 Don't display local sender or destination tables unless
2940 there is data to show.
2941 Added average volumes into the top table text output.
2942
2943SC/04 Eximstats V1.46
2944 Collect data on the number of addresses (recipients)
2945 as well as the number of messages.
2946
2947SC/05 Eximstats V1.47
2948 Added 'Message too big' to the list of mail rejection
2949 reasons (thanks to Marco Gaiarin).
2950
2951SC/06 Eximstats V1.48
2952 Mainlog lines which have GMT offsets and are too short to
2953 have a flag are now skipped.
2954
2955SC/07 Eximstats V1.49 (Alain Williams)
2956 Added the -emptyok flag.
2957
2958SC/08 Eximstats V1.50
2959 Fixes for obtaining the IP address from reject messages.
2960
0ea2a468
JJ
2961JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2962 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 2963 whitespace changes from 4.64-PH/27
0ea2a468
JJ
2964
2965JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2966 match 4.64-PH/13
2967
2968JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2969 are found, allow negative numbers in numeric criteria)
2970
2971JJ/06 exipick.20061117.2, added new $message_body_missing variable
2972
2973JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2974 to match changes made in 4.64-PH/43
2975
8a10f5a4
PH
2976PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2977
30e18802
PH
2978PH/47 Put in an explicit test for a DNS lookup of an address record where the
2979 "domain" is actually an IP address, and force a failure. This locks out
2980 those revolvers/nameservers that support "A-for-A" lookups, in
2981 contravention of the specifications.
2982
55728a4f
PH
2983PH/48 When a host name was looked up from an IP address, and the subsequent
2984 forward lookup of the name timed out, the host name was left in
2985 $sender_host_name, contrary to the specification.
d7d7b289 2986
d7837193
PH
2987PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2988 restricted to single-key lookups, Exim was not diagnosing an error if
2989 * or *@ was used with a query-style lookup.
2990
87054a31
PH
2991PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2992
ea2c01d2
MH
2993MH/01 local_scan ABI version incremented to 1.1. It should have been updated
2994 long ago, but noone interested enough thought of it. Let's just say that
2995 the "1.1" means that there are some new functions that weren't there at
2996 some point in the past.
2997
e4fa6968
PH
2998PH/51 Error processing for expansion failure of helo_data from an smtp
2999 transport during callout processing was broken.
3000
56f5d9bd
PH
3001PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3002 tested/used via the -bh/-bhc/-bs options.
3003
922e1c28
PH
3004PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3005 bug, fixed in subsequent PCRE releases).
3006
21eb6e72
PH
3007PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3008 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3009
a0540757
PH
3010PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3011
944e9e9c 3012
478be7b0
SC
3013Exim version 4.63
3014-----------------
3015
3016SC/01 Use a glob alias rather than an array ref in eximstats generated
3017 parser. This improves both readability and performance.
3018
3019SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3020 Don't display local sender or destination tables in eximstats unless
3021 there is data to show.
3022 Added average volumes into the eximstats top table text output.
3023
3024SC/03 Collect data on the number of addresses (recipients) as well
3025 as the number of messages in eximstats.
3026
2b965a65
TF
3027TF/01 Correct an error in the documentation for the redirect router. Exim
3028 does (usually) call initgroups() when daemonizing.
478be7b0 3029
45b91596
PH
3030TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3031 with consistent privilege compared to when running as a daemon.
478be7b0 3032
c59f5781
TF
3033TF/03 Note in the spec that $authenticated_id is not set for local
3034 submissions from trusted users.
3035
90fc3069
TF
3036TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3037 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3038
6083aca0
TF
3039TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3040 by adding some example configuration directives to the default
3041 configuration file. A little bit of work is required to uncomment the
3042 directives and define how usernames and passwords are checked, but
3043 there is now a framework to start from.
3044
765b530f
PH
3045PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3046 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3047 without this. I don't know how relevant this is to other LDAP libraries.
3048
4e167a8c
PH
3049PH/02 Add the verb name to the "unknown ACL verb" error.
3050
4608d683
PH
3051PH/03 Magnus Holmgren's patch for filter_prepend_home.
3052
b8dc3e4a
PH
3053PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3054
5418e93b
PH
3055PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3056 directory not expanded when it should be if an expanded home directory
3057 was set for the address (which is overridden by the transport).
3058
b4a9bda2
PH
3059PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3060 libradius.
3061
45b91596
PH
3062PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3063 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3064 because it is too late at that time, and has no effect.
3065
5547e2c5
PH
3066PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3067 security issue with \' (bugzilla #107). I could not use the
3068 PQescapeStringConn() function, because it needs a PGconn value as one of
3069 its arguments.
3070
dbcef0ea
PH
3071PH/08 When testing addresses using -bt, indicate those final addresses that
3072 are duplicates that would not cause an additional delivery. At least one
3073 person was confused, thinking that -bt output corresponded to deliveries.
3074 (Suppressing duplicates isn't a good idea as you lose the information
3075 about possibly different redirections that led to the duplicates.)
3076
25257489
PH
3077PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3078 systems where poll() doesn't work, in particular OS X.
3079
c816d124
PH
3080PH/10 Added more information to debugging output for retry time not reached.
3081
a9ccd69a
PH
3082PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3083 operations in malware.c.
3084
75fa1910
PH
3085PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3086 signatures.
3087
a7d7aa58
PH
3088PH/13 If write_rejectlog was set false when logging was sent to syslog with
3089 syslog_duplication set false, log lines that would normally be written
3090 both the the main log and to the reject log were not written to syslog at
3091 all.
3092
42119b09
PH
3093PH/14 In the default configuration, change the use of "message" in ACL warn
3094 statements to "add_header".
3095
41609df5
PH
3096PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3097 not followed by a command (e.g. "seen endif").
3098
a5bd321b
PH
3099PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3100 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3101 latter.
3102
e85a7ad5 3103PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3104 so that it is now:
3105
e85a7ad5
PH
3106 ${if or { \
3107 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3108 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3109 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3110 }{no}{yes}}
3111
e85a7ad5
PH
3112 The Auto-Submitted: and various List- headers are standardised, whereas I
3113 don't think Precedence: ever was.
5dff5817 3114
d8fe1c03
PH
3115PH/18 Refactored debugging code in route_finduser() to show more information,
3116 in particular, the error code if getpwnam() issues one.
3117
16282d2b
PH
3118PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3119 This is apparently needed in addition to the PH/07 change above to avoid
3120 any possible encoding problems.
3121
35d40a98
PH
3122PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3123 but not after initializing Perl.
3124
034d99ab
PH
3125PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3126 output them only if debugging. By default they are written stderr,
3127 apparently, which is not desirable.
3128
6ec97b1b
PH
3129PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3130 queries.
3131
e22ca4ac
JJ
3132JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3133 --not options
3134
3135JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3136
33d73e3b
PH
3137PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3138 authenticated or an ident call has been made. Suppress the default
3139 values for $authenticated_id and $authenticated_sender (but permit -oMai
3140 and -oMas) when testing with -bh.
3141
9ecb03f3
PH
3142PH/24 Re-jigged the order of the tests in the default configuration so that the
3143 tests for valid domains and recipients precede the DNS black list and CSA
3144 tests, on the grounds that those ones are more expensive.
3145
084efe8d
PH
3146PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3147 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3148 This bug exists in every version of Exim that I still have, right back to
3149 0.12.
3150
366fc9f0
PH
3151PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3152 However, an attempt to turn on case-sensitivity in a regex key by
3153 including (?-i) didn't work because the subject string was already
3154 lowercased, and the effects were non-intuitive. It turns out that a
3155 one-line patch can be used to allow (?-i) to work as expected.
3156
c59f5781 3157
c887c79e
TF
3158Exim version 4.62
3159-----------------
3160
3161TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3162 other effects) broke the use of negated acl sub-conditions.
3163
1cce3af8
PH
3164PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3165 patch).
3166
afb3eaaf
PH
3167PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3168 "Deny" causes Exim to reject the incoming connection with a 554 error.
3169 Unfortunately, if there is a major crisis, such as a disk failure,
3170 tcp-wrappers gives "deny", whereas what one would like would be some
3171 kind of temporary error. A kludge has been added to help with this.
3172 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3173 554 error is used if errno is still zero or contains ENOENT (which occurs
3174 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3175 451 error is used.
3176
e173618b
PH
3177PH/03 Add -lutil to the default FreeBSD LIBS setting.
3178
dd16e114
PH
3179PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3180 errors. Otherwise a message that provokes a temporary error (when other
3181 messages do not) can cause a whole host to time out.
3182
f7fd3850
PH
3183PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3184 addresses were routed directly to files or pipes from a redirect router.
3185 File deliveries just didn't batch; pipe deliveries might have suffered
3186 odd errors.
3187
d87df92c
PH
3188PH/06 A failure to get a lock for a hints database would erroneously always say
3189 "Failed to get write lock", even when it was really a read lock.
3190
7e9f683d
PH
3191PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3192 of 0600. This has been changed to use the value of the lockfile_mode
3193 option (which defaults to 0600).
3194
bfad5236
PH
3195PH/08 Applied small patch from the Sieve maintainer.
3196
01c490df
PH
3197PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3198 folder from quota calculations, a direct delivery into this folder messed
3199 up the contents of the maildirsize file. This was because the regex was
3200 used only to exclude .Trash (or whatever) when the size of the mailbox
3201 was calculated. There was no check that a delivery was happening into an
3202 excluded directory. This bug has been fixed by ignoring all quota
3203 processing for deliveries into excluded directories.
3204
d6629cdc
PH
3205PH/10 Added the maildirfolder_create_regex option to appendfile.
3206
1cce3af8 3207
214e2000
PH
3208Exim version 4.61
3209-----------------
3210
3211PH/01 The code for finding all the local interface addresses on a FreeBSD
3212 system running IPv6 was broken. This may well have applied to all BSD
3213 systems, as well as to others that have similar system calls. The broken
3214 code found IPv4 interfaces correctly, but gave incorrect values for the
3215 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3216 that it would not match correctly against @[] and not recognize the IPv6
3217 addresses as local.
3218
f9daeae0
PH
3219PH/02 The ipliteral router was not recognizing addresses of the form user@
3220 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3221
7e66e54d
PH
3222PH/03 Added disable_ipv6.
3223
c8ea1597
PH
3224PH/04 Changed $reply_address to use the raw form of the headers instead of the
3225 decoded form, because it is most often used to construct To: headers
3226 lines in autoreplies, and the decoded form may well be syntactically
3227 invalid. However, $reply_address has leading white space removed, and all
3228 newlines turned into spaces so that the autoreply transport does not
3229 grumble.
3230
911f6fde
PH
3231PH/05 If group was specified without a user on a router, and no group or user
3232 was specified on a transport, the group from the router was ignored.
3233
47ca6d6c
PH
3234PH/06 Increased the number of ACL variables to 20 of each type, and arranged
3235 for visible compile-time settings that can be used to change these
3236 numbers, for those that want even more. Backwards compatibility with old
3237 spool files has been maintained. However, going back to a previous Exim
3238 release will lost any variables that are in spool files.
3239
ed0e9820
PH
3240PH/07 Two small changes when running in the test harness: increase delay when
3241 passing a TCP/IP connection to a new process, in case the original
3242 process has to generate a bounce, and remove special handling of
3243 127.0.0.2 (sic), which is no longer necessary.
3244
eff37e47
PH
3245PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
3246 be the same on different OS.
3247
1921d2ea
PH
3248PH/09 Moved a debug statement in filter processing to avoid a race problem when
3249 testing.
3250
b3f69ca8
JJ
3251JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
3252 whether --show-vars was specified or not
3253
3254JJ/02 exipick: Added support for new ACL variable spool format introduced
3255 in 4.61-PH/06
3256
424a1c63
PH
3257PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
3258 syntactically invalid From: or Reply-to: line, and a filter used this to
3259 generate an autoreply, and therefore failed to obtain an address for the
3260 autoreply, Exim could try to deliver to a non-existent relative file
3261 name, causing unrelated and misleading errors. What now happens is that
3262 it logs this as a hard delivery error, but does not attempt to create a
3263 bounce message.