SPF: remove the deprecated "err_temp" and "err_perm" result names
[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.
c232fc99
JH
151 Do the same for the queue-runner and queue-list loops, for variables set
152 from spool message files. Do the same for the SMTP per-message loop, for
153 certain 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
f64e8b5f
JH
174JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
175 Previously the "final dot" had a newline after it; ensure it is CR,LF.
176
8f0776b5
JH
177JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
178 and "err_perm", deprecated since 4.83 when the RFC-defined words
179 "temperror" and "permerror" were introduced.
180
bbfb5dcd 181
acfc18c3
PP
182Exim version 4.90
183-----------------
184
185JH/01 Rework error string handling in TLS interface so that the caller in
186 more cases is responsible for logging. This permits library-sourced
187 string to be attached to addresses during delivery, and collapses
188 pairs of long lines into single ones.
189
856d1e16
PP
190PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
191 during configuration. Wildcards are allowed and expanded.
192
b9df1829
JH
193JH/02 Rework error string handling in DKIM to pass more info back to callers.
194 This permits better logging.
195
875512a3
JH
196JH/03 Rework the transport continued-connection mechanism: when TLS is active,
197 do not close it down and have the child transport start it up again on
198 the passed-on TCP connection. Instead, proxy the child (and any
199 subsequent ones) for TLS via a unix-domain socket channel. Logging is
200 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 201 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 202
fc3f96af
JH
203JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
204 identical IP addresses on different listening ports. Will also affect
205 "exiwhat" output.
206
98913c8e
BK
207PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
208 add noisy ifdef guards to special-case this sillyness.
209 Patch from Bernd Kuhls.
210
8d909960
JH
211JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
212 than 255 are no longer allowed.
213
7006ee24
JH
214JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
215 Disable the session-cache too, which might reduce our load. Since we
216 currrectly use a new context for every connection, both as server and
217 client, there is no benefit for these.
218 GnuTLS appears to not support tickets server-side by default (we don't
219 call gnutls_session_ticket_enable_server()) but client side is enabled
220 by default on recent versions (3.1.3 +) unless the PFS priority string
221 is used (3.2.4 +).
222
6e411084
PP
223PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
224 <https://reproducible-builds.org/specs/source-date-epoch/>.
225
4c2471ca
JH
226JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
227 the check for any unsuccessful recipients did not notice the limit, and
228 erroneously found still-pending ones.
229
4e910c01
JH
230JH/08 Pipeline CHUNKING command and data together, on kernels that support
231 MSG_MORE. Only in-clear (not on TLS connections).
232
42055a33
JH
233JH/09 Avoid using a temporary file during transport using dkim. Unless a
234 transport-filter is involved we can buffer the headers in memory for
235 creating the signature, and read the spool data file once for the
236 signature and again for transmission.
237
eeb35890
JH
238JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
239 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 240 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 241
b7d3afcf
JH
242JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
243 case where the routing stage had gathered several addresses to send to
244 a host before calling the transport for the first, we previously failed
245 to close down TLS in the old transport process before passing the TCP
246 connection to the new process. The new one sent a STARTTLS command
247 which naturally failed, giving a failed delivery and bloating the retry
248 database. Investigation and fix prototype from Wolfgang Breyha.
249
40525d07
JH
250JH/12 Fix check on SMTP command input synchronisation. Previously there were
251 false-negatives in the check that the sender had not preempted a response
252 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 253 awareness of the SMTP input buffering.
40525d07 254
f33875c3
PP
255PP/04 Add commandline_checks_require_admin option.
256 Exim drops privileges sanely, various checks such as -be aren't a
257 security problem, as long as you trust local users with access to their
258 own account. When invoked by services which pass untrusted data to
259 Exim, this might be an issue. Set this option in main configuration
260 AND make fixes to the calling application, such as using `--` to stop
261 processing options.
262
a5ffa9b4
JH
263JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
264 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
265 responses to those, into a single TLS record each way (this usually means
266 a single packet). As a side issue, smtp_enforce_sync now works on TLS
267 connections.
925ac8e4 268
6600985a
PP
269PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
270 affects you only if you're dancing at the edge of the param size limits.
271 If you are, and this message makes sense to you, then: raise the
272 configured limit or use OpenSSL 1.1. Nothing we can do for older
273 versions.
274
ac4d558b
JH
275JH/14 For the "sock" variant of the malware scanner interface, accept an empty
276 cmdline element to get the documented default one. Previously it was
277 inaccessible.
278
e69636bc
JH
279JH/15 Fix a crash in the smtp transport caused when two hosts in succession
280 are unsuable for non-message-specific reasons - eg. connection timeout,
281 banner-time rejection.
282
a843a57e
JH
283JH/16 Fix logging of delivery remote port, when specified by router, under
284 callout/hold.
285
8e041ae0
PP
286PP/06 Repair manualroute's ability to take options in any order, even if one
287 is the name of a transport.
833c70bc
PP
288 Fixes bug 2140.
289
35a04365
HSHR
290HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
291
4226691b
JH
292JH/17 Change the list-building routines interface to use the expanding-string
293 triplet model, for better allocation and copying behaviour.
294
d185889f
JH
295JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
296 Previously it was constructed the first time a possibly-matching string
297 was met in the configuration file input during startup; now it is done
298 during compilation.
299
0a6c178c
JH
300JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
301 compatible one, to avoid the (poorly documented) possibility of a config
302 file in the working directory redirecting the DB files, possibly correpting
02745400 303 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 304
fae8970d
JH
305JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
306 cache-hot. Previously, although the result was properly cached, the
307 initial verify call returned a defer.
308
ad1a76fe 309JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
310 the main verify for receipient in uncached-mode.
311
ad1a76fe
JH
312JH/22 Retire historical build files to an "unsupported" subdir. These are
313 defined as "ones for which we have no current evidence of testing".
314
135e9496
JH
315JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
316 if present. Previously it was ignored.
317
f2ed27cf
JH
318JH/24 Start using specified-initialisers in C structure init coding. This is
319 a C99 feature (it's 2017, so now considered safe).
320
7eb0e5d2
JH
321JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
322 if was a fixed-sized field and bitmask ops via macros; it is now more
323 extensible.
324
4f9f4be4
325PP/07 GitHub PR 56: Apply MariaDB build fix.
326 Patch provided by Jaroslav Škarvada.
327
dc4de9cc
PP
328PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
329 during Coverity cleanups [4.87 JH/47]
330 Diagnosis and fix provided by Michael Fischer v. Mollard.
331
ea18931d
JH
332JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
333 the right size to place the terminating semicolon on its own folded
334 line, the header hash was calculated to an incorrect value thanks to
335 the (relaxed) space the fold became.
336
2cee425a
HSHR
337HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
338 and confused the parent.
339
848214f7
JH
340JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
341 which could crash as a result. This could lead to undeliverable messages.
342
9e0ed81f
JH
343JH/28 Logging: "next input sent too soon" now shows where input was truncated
344 for log purposes.
345
2540f2f8
JH
346JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
347 matters on fast-turnover and PID-randomising systems, which were getting
348 out-of-order delivery.
349
e5ab0ba9
JH
350JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
351 a possibly-overlapping copy. The symptom was that "Remote host closed
352 connection in response to HELO" was logged instead of the actual 4xx
353 error for the HELO.
354
e99a3a6c
JH
355JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
356 Previously only that bufferd was discarded, resulting in SYMTP command
357 desynchronisation.
358
18067c75
JH
359JH/32 DKIM: when a message has multiple signatures matching an identity given
360 in dkim_verify_signers, run the dkim acl once for each. Previously only
361 one run was done. Bug 2189.
362
72934ba7
JH
363JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
364 "panic the current process" to "deliberately defer". The panic log is
365 still written with the problem list name; the mail and reject logs now
366 get a temp-reject line for the message that was being handled, saying
367 something like "domains check lookup or other defer". The SMTP 451
368 message is still "Temporary local problem".
369
625667b6
JH
370JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
371 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
372 freed. CVE-2017-16943.
373
374HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
375 from SMTP input. Previously it was always done; now only done for DATA
376 and not BDAT commands. CVE-2017-16944.
625667b6 377
d21bf202
JH
378JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
379 to the message (such as an overlong header line). Previously this was
380 not done and we did not exit BDAT mode. Followon from the previous item
381 though a different problem.
382
acfc18c3 383
fd047340 384Exim version 4.89
acfc18c3 385-----------------
4c57a40e 386
9427e879 387JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 388 than -2003 did; needs libidn2 in addition to libidn.
fd047340 389
7b283890
JH
390JH/02 The path option on a pipe transport is now expanded before use.
391
4c57a40e
PP
392PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
393 Patch provided by "Björn", documentation fix added too.
394
5d036699
JH
395JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
396 missing a wire-to-host endian conversion.
397
f4630439
JH
398JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
399 close after a BDAT command line could be taken as a following command,
400 giving a synch failure. Fix by only checking for synch immediately
401 before acknowledging the chunk.
402
f988ce57
JS
403PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
404 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
405 macro. Patches provided by Josh Soref.
406
bd8fbe36
JH
407JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
408 Previously we did not; the RFC seems ambiguous and VRFY is not listed
409 by IANA as a service extension. However, John Klensin suggests that we
410 should.
411
412JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
413 the dkim code may be unix-mode line endings rather than smtp wire-format
414 CRLF, so prepend a CR to any bare LF.
fd047340 415
bd8fbe36 416JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
417 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
418
bd8fbe36
JH
419JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
420 the first were themselves being wrongly included in the feed into dkim
421 processing; with most chunk sizes in use this resulted in an incorrect
422 body hash calculated value.
423
eea19017
JH
424JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
425 DKIM signature block, for verification. Although advised against by
426 standards it is specifically not ruled illegal.
427
44e6651b
JH
428JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
429
430JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
431 missing a body hash (the bh= tag).
432
433JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
434 It seems that HAProxy sends the Proxy Protocol information in clear and
435 only then does a TLS startup, so do the same.
436
437JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
438 TCP connections (such as for Spamd) unless the daemon successfully set
439 Fast Open mode on its listening sockets. This fixes breakage seen on
440 too-old kernels or those not configured for Fast Open, at the cost of
441 requiring both directions being enabled for TFO, and TFO never being used
442 by non-daemon-related Exim processes.
443
444JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
445 endings, at least on the first header line. Try to canonify any that get
446 past that check, despite the cost.
447
b6040544
JH
448JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
449 now limited to an arbitrary five deep, while parsing addresses with the
450 strip_excess_angle_brackets option enabled.
451
f700ea4d
PP
452PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
453 instead leave the unprompted TLS handshake in socket buffer for the
454 TLS library to consume.
455
da88acae
PP
456PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
457
f6ef9370
PP
458PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
459
90341c71
JH
460JH/16 Drop variables when they go out of scope. Memory management drops a whole
461 region in one operation, for speed, and this leaves assigned pointers
462 dangling. Add checks run only under the testsuite which checks all
463 variables at a store-reset and panics on a dangling pointer; add code
464 explicitly nulling out all the variables discovered. Fixes one known
465 bug: a transport crash, where a dangling pointer for $sending_ip_address
466 originally assigned in a verify callout, is re-used.
467
1ec2ab36
PP
468PP/06 Drop '.' from @INC in various Perl scripts.
469
470PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
471
472PP/08 Reduce a number of compilation warnings under clang; building with
473 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
474 should be warning-free.
475
8b2b9480
PP
476JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
477
478HS/01 Fix portability problems introduced by PP/08 for platforms where
479 realloc(NULL) is not equivalent to malloc() [SunOS et al].
480
d953610f
HSHR
481HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
482 chunk. This allows us to accept broken chunked messages. We need a more
483 general solution here.
484
7dc5f827
PP
485PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
486 already-broken messages in the queue.
487
4bb432cb
PP
488JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
489
3b1a84c8
PP
490JH/19 Fix reference counting bug in routing-generated-address tracking.
491
902fbd69 492
8d042305
JH
493Exim version 4.88
494-----------------
4c57a40e 495
9094b84b
JH
496JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
497 supports it and a size is available (ie. the sending peer gave us one).
8d042305 498
03d5892b
JH
499JH/02 The obsolete acl condition "demime" is removed (finally, after ten
500 years of being deprecated). The replacements are the ACLs
501 acl_smtp_mime and acl_not_smtp_mime.
502
4b0fe319
JH
503JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
504 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
505 or even an in-clear connection were permitted. Now, if the host lookup
506 was dnssec and dane was requested then the host is only used if the
507 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
508 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
509 if one fails this test.
510 This means that a poorly-configured remote DNS will make it incommunicado;
511 but it protects against a DNS-interception attack on it.
512
789f8a4f
JH
513JH/04 Bug 1810: make continued-use of an open smtp transport connection
514 non-noisy when a race steals the message being considered.
515
23bb6982 516JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 517 self-signed certificate for inbound TLS connections.
23bb6982 518
0bd1b1ed 519JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 520 in rewrites and routers.
0bd1b1ed 521
20b9a2dc
JH
522JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
523 and logged a warning sing 4.83; now they are a configuration file error.
524
05392bbc
JH
525JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
526 (lacking @domain). Apply the same qualification processing as RCPT.
527
1a6230a3
JH
528JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
529
cfab9d68
JH
530JH/10 Support ${sha256:} applied to a string (as well as the previous
531 certificate).
532
98c82a3d
JH
533JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
534 a cutthrough deliver is pending, as we always want to make a connection.
535 This also avoids re-routing the message when later placing the cutthrough
536 connection after a verify cache hit.
537 Do not update it with the verify result either.
538
539JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
540 when routing results in more than one destination address.
541
ae8386f0
JH
542JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
543 signing (which inhibits the cutthrough capability). Previously only
544 the presence of an option was tested; now an expansion evaluating as
545 empty is permissible (obviously it should depend only on data available
546 when the cutthrough connection is made).
547
0d9fa8c0
JH
548JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
549 the relevant preceding SMTP command did not note the pipelining mode.
550
3581f321
JH
551JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
552 Previously they were not counted.
553
ef3a1a30
JH
554JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
555 as one having no matching records. Previously we deferred the message
556 that needed the lookup.
557
4c04137d 558JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
559 distinguished as "(=".
560
1435d4b2
JH
561JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
562 for missing MX records. Previously it only worked for missing A records.
563
eea0defe
JB
564JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
565
566JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
567 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 568
4c04137d 569JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
570 even for a "none" policy. Patch from Tony Meyer.
571
1c788856
JH
572JH/22 Fix continued use of a connection for further deliveries. If a port was
573 specified by a router, it must also match for the delivery to be
574 compatible.
575
e3b1f624
JH
576JH/23 Bug 1874: fix continued use of a connection for further deliveries.
577 When one of the recipients of a message was unsuitable for the connection
578 (has no matching addresses), we lost track of needing to mark it
579 deferred. As a result mail would be lost.
580
a57ce043
JH
581JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
582
f59aaaaa 583JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
584 takes up less space and should be simpler to maintain. Merge the ACL
585 condition decode tables also, with similar effect.
d7bed771 586
d1f9fb42
JH
587JH/26 Fix problem with one_time used on a redirect router which returned the
588 parent address unchanged. A retry would see the parent address marked as
589 delivered, so not attempt the (identical) child. As a result mail would
590 be lost.
591
92b0827a
JH
592JH/27 Fix a possible security hole, wherein a process operating with the Exim
593 UID can gain a root shell. Credit to http://www.halfdog.net/ for
594 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
595 itself :(
596
ddf1b11a
JH
597JH/28 Enable {spool,log} filesystem space and inode checks as default.
598 Main config options check_{log,spool}_{inodes,space} are now
599 100 inodes, 10MB unless set otherwise in the configuration.
600
3cc3f762
JH
601JH/29 Fix the connection_reject log selector to apply to the connect ACL.
602 Previously it only applied to the main-section connection policy
603 options.
604
ae5afa61
JH
605JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
606
317e40ac
PP
607PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
608 by me. Added RFC7919 DH primes as an alternative.
609
8b0fb68e
PP
610PP/02 Unbreak build via pkg-config with new hash support when crypto headers
611 are not in the system include path.
612
ad7fc6eb 613JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 614 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
615 Exim did stdio operations after fclose. This was exposed by a recent
616 change which nulled out the file handle after the fclose.
ad7fc6eb 617
ee5b1e28
JH
618JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
619 signed directly by the cert-signing cert, rather than an intermediate
620 OCSP-signing cert. This is the model used by LetsEncrypt.
621
5ddc9771
JH
622JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
623
8d73599f
JH
624HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
625 an incoming connection.
626
446415f5
HSHR
627HS/02 Bug 1802: Do not half-close the connection after sending a request
628 to rspamd.
629
8e53a4fc
HSHR
630HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
631 fallback to "prime256v1".
8d042305 632
87cb4a16 633JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 634 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
635
636
0d9b78be
JH
637Exim version 4.87
638-----------------
4c57a40e 639
82d14d6a
JH
640JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
641 and 3.4.4 - once the server is enabled to respond to an OCSP request
642 it does even when not requested, resulting in a stapling non-aware
643 client dropping the TLS connection.
0d9b78be 644
6c6d6e48
TF
645TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
646 support variable-length bit vectors. No functional change.
647
ac881e27
TF
648TF/02 Improve the consistency of logging incoming and outgoing interfaces.
649 The I= interface field on outgoing lines is now after the H= remote
650 host field, same as incoming lines. There is a separate
651 outgoing_interface log selector which allows you to disable the
652 outgoing I= field.
653
c8899c20
JH
654JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
655 If not running log_selector +smtp_connection the mainlog would be held
656 open indefinitely after a "too many connections" event, including to a
657 deleted file after a log rotate. Leave the per net connection logging
658 leaving it open for efficiency as that will be quickly detected by the
659 check on the next write.
660
f1b81d81
HSHR
661HS/01 Bug 1671: Fix post transport crash.
662 Processing the wait-<transport> messages could crash the delivery
663 process if the message IDs didn't exist for some reason. When
664 using 'split_spool_directory=yes' the construction of the spool
665 file name failed already, exposing the same netto behaviour.
666
f38917cc
JH
667JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
668 mime_regex ACL conditions.
669
895fbaf2
JH
670JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
671 to DSN fail messages (bounces): remote IP, remote greeting, remote response
672 to HELO, local diagnostic string.
673
805bb5c3
JH
674JH/05 Downgrade message for a TLS-certificate-based authentication fail from
675 log line to debug. Even when configured with a tls authenticator many
676 client connections are expected to not authenticate in this way, so
677 an authenticate fail is not an error.
678
56c2a7be
HSHR
679HS/02 Add the Exim version string to the process info. This way exiwhat
680 gives some more detail about the running daemon.
681
4c04137d 682JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
683 matter for fast-change records such as DNSBLs.
684
6f6dedcc
JH
685JH/07 Bug 1678: Always record an interface option value, if set, as part of a
686 retry record, even if constant. There may be multiple transports with
687 different interface settings and the retry behaviour needs to be kept
688 distinct.
689
0f557e90
JH
690JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
691
692JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
693
ec0eb1a3
JH
694JH/10 Bug 840: fix log_defer_output option of pipe transport
695
41e93589
JH
696JH/11 Bug 830: use same host for all RCPTS of a message, even under
697 hosts_randomize. This matters a lot when combined with mua_wrapper.
698
98b98887 699JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
700 ${quote_pgsql:<string>} operator.
701
98b98887
JH
702JH/13 Bug 1708: avoid misaligned access in cached lookup.
703
858e91c2
JH
704JH/14 Change header file name for freeradius-client. Relevant if compiling
705 with Radius support; from the Gentoo tree and checked under Fedora.
706
707JH/15 Bug 1712: Introduce $prdr_requested flag variable
708
6ff55e50
JH
709JH/16 Bug 1714: Permit an empty string as expansion result for transport
710 option transport_filter, meaning no filtering.
711
3b957582
JB
712JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
713
23f3dc67
JH
714JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
715 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 716 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
717 If a server certificate is not supplied (via tls_certificate) an error is
718 logged, and clients will find TLS connections fail on startup. Presumably
719 they will retry in-clear.
720 Packagers of Exim are strongly encouraged to create a server certificate
721 at installation time.
722
240c288f
JH
723HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
724 with the $config_file variable.
725
5ef5dd52
JB
726JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
727 in transport context, after the attempt, and per-recipient. The latter type
728 is per host attempted. The event data is the error message, and the errno
729 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 730 and the trailing two digits of the smtp 4xx response.
5ef5dd52 731
e161710d
GF
732GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
733 to write to mainlog (or rejectlog, paniclog) in the window between file
734 creation and permissions/ownership being changed. Particularly affects
735 installations where exicyclog is run as root, rather than exim user;
736 result is that the running daemon panics and dies.
737
a159f203
JH
738JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
739
7f06582c
JH
740JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
741 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
742 "pri" and "weight". Note that the previous implicit priority given by the
743 list order is no longer honoured.
744
4c04137d 745JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
746 for DKIM processing.
747
f0989ec0
JH
748JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
749 by defining SUPPORT_SOCKS.
74f150bf 750
cee5f132
JH
751JH/26 Move PROXY support from Experimental to mainline, enabled for a build
752 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
753 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
754 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 755
8c5d388a
JH
756JH/27 Move Internationalisation support from Experimental to mainline, enabled
757 for a build by defining SUPPORT_I18N
758
2d8d625b
JH
759JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
760 of the query string, and make ${quote_redis:} do that quoting.
761
0cbf2b82
JH
762JH/29 Move Events support from Experimental to mainline, enabled by default
763 and removable for a build by defining DISABLE_EVENT.
764
f2f2c91b
JH
765JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
766
ce325893
JH
767JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
768 cached by the daemon.
769
de78e2d5
JH
770JH/32 Move Redis support from Experimental to mainline, enabled for a build
771 by defining LOOKUP_REDIS. The libhiredis library is required.
772
379ba7d0
JH
773JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
774 keys are given for lookup.
775
f444c2c7
JH
776JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
777 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
778 only supported when built with TLS support. The PolarSSL SHA routines
779 are still used when the TLS library is too old for convenient support.
f444c2c7 780
a57b6200
JH
781JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
782 openssl_options), for security. OpenSSL forces this from version 1.1.0
783 server-side so match that on older versions.
784
07c73177 785JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 786 allocation for $value could be released as the expansion processing
07c73177 787 concluded, but leaving the global pointer active for it.
fa01e4f8 788
4f6ae5c3
JH
789JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
790 and to use the domains and local_parts ACL conditions.
791
1bc460a6
JH
792JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
793 incorrectly not doubled on cutthrough transmission, hence seen as a
794 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 795 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
796 via the normal store-and-forward channel. This could result in duplicates
797 received - but deduplicating mailstores were liable to retain only the
798 initial truncated version.
799
ab9152ff 800JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 801
67e87fcf
JH
802JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
803
ab9152ff
JH
804JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
805 we're in there, support oversigning also; bug 1309.
806
af483912
JH
807JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
808
bc3c7bb7 809HS/04 Add support for keep_environment and add_environment options.
df3def24 810
13559da6
JH
811JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
812 either intentional arithmetic overflow during PRNG, or testing config-
813 induced overflows.
814
59eaad2b
JH
815JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
816 delivery resulted in actual delivery. Cancel cutthrough before DATA
817 stage.
818
f9334a28
JH
819JH/45 Fix cutthrough, when connection not opened by verify and target hard-
820 rejects a recipient: pass the reject to the originator.
821
dc8091e7
JH
822JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
823 Many were false-positives and ignorable, but it's worth fixing the
824 former class.
825
dfe7d917
JH
826JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
827 for the new environment-manipulation done at startup. Move the routines
828 from being local to tls.c to being global via the os.c file.
829
93cc2d6e
JH
830JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
831 an extract embedded as result-arg for a map, the first arg for extract
832 is unavailable so we cannot tell if this is a numbered or keyed
833 extraction. Accept either.
834
13559da6 835
9c695f6d
JH
836Exim version 4.86
837-----------------
4c57a40e 838
9c695f6d
JH
839JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
840 expanded.
841
506900af
JH
842JH/02 The smtp transport option "multi_domain" is now expanded.
843
ad07e9ad
JH
844JH/03 The smtp transport now requests PRDR by default, if the server offers
845 it.
846
01a4a5c5 847JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 848 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
849 can be used to disable this per-host. The build option
850 EXPERIMENTAL_CERTNAMES is withdrawn.
851
cb1d7830 852JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 853 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
854 For GnuTLS, only version 3.0.20 or later.
855
610ff438 856JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
857 (but not required) by default. The verification status is now logged by
858 default, for both outbound TLS and client-certificate supplying inbound
859 TLS connections
610ff438 860
f926e272
JH
861JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
862 sites use this now.
863
50dc7409
JH
864JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
865 Status Notification (bounce) messages are now MIME format per RFC 3464.
866 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
867 under the control of the dsn_advertise_hosts option, and routers may
868 have a dsn_lasthop option.
869
0f0c8159
JH
870JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
871 default, modifiable by a malware= option. The list separator for
23763898 872 the options can now be changed in the usual way. Bug 68.
4e71661f 873
1ad6489e
JH
874JH/10 The smtp_receive_timeout main option is now expanded before use.
875
aeaf5db3
JH
876JH/11 The incoming_interface log option now also enables logging of the
877 local interface on delivery outgoing connections.
878
5032d1cf
JH
879JH/12 The cutthrough-routing facility now supports multi-recipient mails,
880 if the interface and destination host and port all match.
881
7e8360e6
JH
882JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
883 /defer_ok option.
884
c5f280e2
AL
885JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
886 Patch from Andrew Lewis.
887
fd4d8871 888JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 889 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
890 modifiers per server. Patch originally by <rommer@active.by>.
891
892JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
893 and remote servers. Remote servers can be IPv6 addresses, and
894 specify a port-range.
fd4d8871 895
23763898
JH
896JH/17 Bug 68: The spamd_address main option now supports an optional
897 timeout value per server.
898
2ad78978
JH
899JH/18 Bug 1581: Router and transport options headers_add/remove can
900 now have the list separator specified.
901
8a512ed5 902JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 903 option values.
8a512ed5 904
82c0c8ea 905JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
906 under OpenSSL.
907
cc00f4af
JH
908JH/21 Support for the A6 type of dns record is withdrawn.
909
82c0c8ea
JH
910JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
911 rather than the verbs used.
912
b980ed83
JH
913JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
914 from 255 to 1024 chars.
915
6c9ed72e
JH
916JH/24 Verification callouts now attempt to use TLS by default.
917
cfab9d68 918HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 919 are generic router options now. The defaults didn't change.
50dc7409 920
f846c8f5
JH
921JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
922 Original patch from Alexander Shikoff, worked over by JH.
923
fd4c285c
HSHR
924HS/02 Bug 1575: exigrep falls back to autodetection of compressed
925 files if ZCAT_COMMAND is not executable.
926
4c04137d 927JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 928
d2a2c69b
JH
929JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
930
8241d8dd
JH
931JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
932 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 933 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
934 (and we were inconsistent anyway for A-only vs AAAA+A).
935
1f12df4d
JH
936JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
937
1f155f8e
JH
938JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
939 when evaluating $sender_host_dnssec.
940
1705dd20
JH
941JH/31 Check the HELO verification lookup for DNSSEC, adding new
942 $sender_helo_dnssec variable.
943
038597d2
PP
944JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
945
474f71bf
JH
946JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
947
7137ca4b
JH
948JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
949
dcb1095c
JH
950JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
951 documented as working, but never had. Support all but $spam_report.
952
2f460950
JH
953JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
954 added for tls authenticator.
955
2f680c0c
HSHR
956HS/03 Add perl_taintmode main config option
957
9c695f6d 958
e449c3b0
TL
959Exim version 4.85
960-----------------
4c57a40e 961
e449c3b0
TL
962TL/01 When running the test suite, the README says that variables such as
963 no_msglog_check are global and can be placed anywhere in a specific
964 test's script, however it was observed that placement needed to be near
965 the beginning for it to behave that way. Changed the runtest perl
966 script to read through the entire script once to detect and set these
967 variables, reset to the beginning of the script, and then run through
968 the script parsing/test process like normal.
969
ac20058f
TL
970TL/02 The BSD's have an arc4random API. One of the functions to induce
971 adding randomness was arc4random_stir(), but it has been removed in
972 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
973 function when detected.
974
a9b8ec8b
JH
975JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
976 cause callback expansion.
977
6286d7c4
TL
978TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
979 syntax errors in an expansion can be treated as a string instead of
980 logging or causing an error, due to the internal use of bool_lax
981 instead of bool when processing it.
982
0f06b4f2 983JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
984 server certificates when making smtp deliveries.
985
be36e572
JH
986JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
987
ac4ef9bd
JH
988JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
989
0eb51736
TL
990TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
991
c713ca4b
TL
992TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
993 Merged patch from Sebastian Wiedenroth.
e449c3b0 994
bd21a787
WB
995JH/05 Fix results-pipe from transport process. Several recipients, combined
996 with certificate use, exposed issues where response data items split
997 over buffer boundaries were not parsed properly. This eventually
998 resulted in duplicates being sent. This issue only became common enough
4c04137d 999 to notice due to the introduction of connection certificate information,
bd21a787
WB
1000 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1001
8bc732e8
JH
1002JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1003 size buffer was used, resulting in syntax errors when an expansion
1004 exceeded it.
1005
a7fec7a7
JH
1006JH/07 Add support for directories of certificates when compiled with a GnuTLS
1007 version 3.3.6 or later.
1008
4c04137d 1009JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1010 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1011 both become "event_action", the variables become $event_name, $event_data
aec45841 1012 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1013 routers, transports and related events. The tls:cert event is now also
1014 raised for inbound connections, if the main configuration event_action
1015 option is defined.
774ef2d7 1016
eca4debb
TL
1017TL/06 In test suite, disable OCSP for old versions of openssl which contained
1018 early OCSP support, but no stapling (appears to be less than 1.0.0).
1019
8d692470
JH
1020JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1021 server certificate names available under the smtp transport option
1022 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1023 matches.
1024
e9477a08
JH
1025JH/10 Time-related extraction expansions from certificates now use the main
1026 option "timezone" setting for output formatting, and are consistent
1027 between OpenSSL and GnuTLS compilations. Bug 1541.
1028
ad4c5ff9
JH
1029JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1030 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1031
1032JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1033 include certificate info, eximon was claiming there were spoolfile
1034 syntax errors.
1035
3394b36a 1036JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1037
1038JH/14 Log delivery-related information more consistently, using the sequence
1039 "H=<name> [<ip>]" wherever possible.
1040
3394b36a
TL
1041TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1042 are problematic for Debian distribution, omit them from the release
1043 tarball.
1044
ad4c5ff9
JH
1045JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1046
4c04137d 1047JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1048 Bug 1561.
1049
1050JH/17 Fix a null-indirection in certextract expansions when a nondefault
1051 output list separator was used.
1052
8bc732e8 1053
1f0ebb98
TL
1054Exim version 4.84
1055-----------------
09728d20
TL
1056TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1057 checkers that were complaining about end of non-void function with no
1058 return.
1f0ebb98 1059
a612424f 1060JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1061 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1062
1063JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1064
1065TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1066 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1067
1f0ebb98 1068
c0e56233
TF
1069Exim version 4.83
1070-----------------
1071
1072TF/01 Correctly close the server side of TLS when forking for delivery.
1073
1074 When a message was received over SMTP with TLS, Exim failed to clear up
1075 the incoming connection properly after forking off the child process to
1076 deliver the message. In some situations the subsequent outgoing
1077 delivery connection happened to have the same fd number as the incoming
1078 connection previously had. Exim would try to use TLS and fail, logging
1079 a "Bad file descriptor" error.
1080
7245734e
TF
1081TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1082 utilities have not been installed.
1083
fd5dad68
JH
1084JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1085 temporary space as the ACL may create new global variables.
1086
5428a946
TL
1087TL/01 LDAP support uses per connection or global context settings, depending
1088 upon the detected version of the libraries at build time.
1089
a3c86431
TL
1090TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1091 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1092 were a direct connection from the outside internet. PPv2 support was
1093 updated based on HAProxy spec change in May 2014.
a3c86431 1094
aa26e137
JH
1095JH/02 Add ${listextract {number}{list}{success}{fail}}.
1096
5a1b8443
WB
1097TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1098 Properly escape header and check for NULL return.
1099
72c9e342
PP
1100PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1101 not dns_use_dnssec.
1102
76f44207
WB
1103JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1104
770747fd
MFM
1105TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1106 characters in header names, implemented as a verify condition.
1107 Contributed by Michael Fischer v. Mollard.
1108
8ddef691 1109TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1110 results permerror and temperror. Previous values are deprecated but
1111 still accepted. In a future release, err_perm and err_temp will be
1112 completely removed, which will be a backward incompatibility if the
1113 ACL tests for either of these two old results. Patch contributed by
8ddef691 1114 user bes-internal on the mailing list.
c0e56233 1115
b9c2e32f
AR
1116JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1117
e45a1c37
JH
1118JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1119 selectors, in both main and reject logs.
1120
67d81c10
JH
1121JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1122 failed delivery.
1123
b1f8e4f8
JH
1124JH/07 Add malware type "sock" for talking to simple daemon.
1125
511a6c14 1126JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1127
1128JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1129 routers/transports under cutthrough routing.
214042d2 1130
51c7471d
JH
1131JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1132 numbers. Touch up "bool" conditional to keep the same definition.
1133
3695be34
TL
1134TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1135
1e06383a
TL
1136JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1137
76146973
JH
1138JH/12 Expand items in router/transport headers_add or headers_remove lists
1139 individually rather than the list as a whole. Bug 1452.
1140
1141 Required for reasonable handling of multiple headers_ options when
1142 they may be empty; requires that headers_remove items with embedded
1143 colons must have them doubled (or the list-separator changed).
1144
8c8b8274
TL
1145TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1146 view the policy declared in the DMARC record. Currently, $dmarc_status
1147 is a combined value of both the record presence and the result of the
1148 analysis.
b1f8e4f8 1149
35aba663
JH
1150JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1151
8c51eead 1152JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1153 dnslookup router and the smtp transport (applying to the forward
1154 lookup).
8c51eead 1155
deae092e
HS
1156TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1157 of ldap servers used for a specific lookup. Patch provided by Heiko
1158 Schlichting.
35aba663 1159
fd3b6a4a 1160JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1161 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1162
8d91c6dc
LT
1163TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1164 Patch submitted by Lars Timman.
1165
2b4a568d
JH
1166JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1167
d2af03f4
HS
1168TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1169 Requires trusted mode and valid format message id, aborts otherwise.
1170 Patch contributed by Heiko Schlichting.
1171
9d1c15ef
JH
1172JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1173 certextract with support for various fields. Bug 1358.
1174
44662487
JH
1175JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1176 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1177 hosts_request_ocsp.
1178
ed3bba5f 1179JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1180 operate on certificate variables to give certificate fingerprints
9ef9101c 1181 Also new ${sha256:cert_variable}.
44662487 1182
8ccd00b1
JH
1183JH/23 The PRDR feature is moved from being Experimental into the mainline.
1184
8ded8589
TL
1185TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1186 Christian Aistleitner.
1187
f2de3a33
JH
1188JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1189
6eb02f88
TL
1190TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1191 file. Patch from Wolfgang Breyha.
1192
00bff6f6
JH
1193JH/25 Expand the coverage of the delivery $host and $host_address to
1194 client authenticators run in verify callout. Bug 1476.
1195
071c51f7
JH
1196JH/26 Port service names are now accepted for tls_on_connect_ports, to
1197 align with daemon_smtp_ports. Bug 72.
1198
a6d4c44e
TF
1199TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1200 support and error reporting did not work properly.
1201
3ae173e7
ACK
1202TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1203 and is readable. Patch from Andrew Colin Kissa.
1204
c13d09b8
TL
1205TL/14 Enhance documentation of ${run expansion and how it parses the
1206 commandline after expansion, particularly in the case when an
1207 unquoted variable expansion results in an empty value.
1208
0df4ab80
JH
1209JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1210
66be95e0
PP
1211PP/02 Fix internal collision of T_APL on systems which support RFC3123
1212 by renaming away from it. Addresses GH issue 15, reported by
1213 Jasper Wallace.
1214
1bd0d12b
JH
1215JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1216
0de7239e
TL
1217TL/15 SECURITY: prevent double expansion in math comparison functions
1218 (can expand unsanitized data). Not remotely exploitable.
1219 CVE-2014-2972
1220
fd3b6a4a 1221
2c422e6f 1222Exim version 4.82
98a90c36
PP
1223-----------------
1224
1225PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1226
12f69989
PP
1227PP/02 Make -n do something, by making it not do something.
1228 When combined with -bP, the name of an option is not output.
1229
54c90be1
PP
1230PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1231 by GnuTLS.
1232
1f4a55da
PP
1233PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1234 $sender_host_name and config options to manage this, and basic check
1235 routines.
1236
13363eba 1237PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1238
66645890 1239PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1240 (Only plugin which currently uses this is kerberos4, which nobody should
1241 be using, but we should make it available and other future plugins might
1242 conceivably use it, even though it would break NAT; stuff *should* be
1243 using channel bindings instead).
66645890 1244
a3fb9793 1245PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1246 name; added for Sendmail compatibility; requires admin caller.
1247 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1248 just ignore it); requires trusted caller.
a3fb9793 1249 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1250 Bugzilla 1117.
a3fb9793 1251
d27f98fe 1252TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1253
6822b909
TL
1254TL/02 Add +smtp_confirmation as a default logging option.
1255
e7568d51
TL
1256TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1257 Patch by Magnus Holmgren from 2007-02-20.
1258
ae0e32ee 1259TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1260 Bugzilla 1283 - Spec typo.
97f42f10 1261 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1262
1263TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1264
e2658fff
TL
1265TL/06 Add Experimental DMARC support using libopendmarc libraries.
1266
83712b39
TL
1267TL/07 Fix an out of order global option causing a segfault. Reported to dev
1268 mailing list by by Dmitry Isaikin.
1269
976b7e9f
JH
1270JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1271
be4a1376
JH
1272JH/02 Support "G" suffix to numbers in ${if comparisons.
1273
ec4b68e5
PP
1274PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1275
d7148a07
NM
1276NM/01 Bugzilla 1197 - Spec typo
1277 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1278
585121e2 1279JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1280
2519e60d
TL
1281PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1282 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1283 function.
a5f239e4 1284
13d08c90
PP
1285PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1286 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1287
bef3ea7f
JH
1288JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1289 "acl {{name}{arg}...}", and optional args on acl condition
1290 "acl = name arg..."
a5f239e4 1291
846726c5
JH
1292JH/05 Permit multiple router/transport headers_add/remove lines.
1293
3a796370
JH
1294JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1295
ea722490 1296JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1297 Performance patch from Paul Fisher. Bugzilla 1262.
1298
b1b05573
JH
1299JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1300 Bugzilla 884.
1301
362145b5
JH
1302JH/09 Add $headers_added variable, with content from use of ACL modifier
1303 add_header (but not yet added to the message). Bugzilla 199.
1304
3c0a92dc
JH
1305JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1306 Pulled from Bugzilla 817 by Wolfgang Breyha.
1307
6d7c6175
PP
1308PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1309 CVE-2012-5671
e78e6ecf 1310 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1311
6f123593
JH
1312JH/11 Add A= logging on delivery lines, and a client_set_id option on
1313 authenticators.
1314
c8e2fc1e
JH
1315JH/12 Add optional authenticated_sender logging to A= and a log_selector
1316 for control.
1317
005ac57f
PP
1318PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1319
3f1df0e3
PP
1320PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1321 advertise SMTP AUTH mechanism to us, instead of a generic
1322 protocol violation error. Also, make Exim more robust to bad
1323 data from the Dovecot auth socket.
1324
67bd1ab3
TF
1325TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1326
1327 When a queue runner is handling a message, Exim first routes the
1328 recipient addresses, during which it prunes them based on the retry
1329 hints database. After that it attempts to deliver the message to
1330 any remaining recipients. It then updates the hints database using
1331 the retry rules.
1332
1333 So if a recipient address works intermittently, it can get repeatedly
1334 deferred at routing time. The retry hints record remains fresh so the
1335 address never reaches the final cutoff time.
1336
1337 This is a fairly common occurrence when a user is bumping up against
1338 their storage quota. Exim had some logic in its local delivery code
1339 to deal with this. However it did not apply to per-recipient defers
1340 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1341
1ddeb334
TF
1342 This change adds a proper retry rule check during routing so that the
1343 final cutoff time is checked against the message's age. We only do
1344 this check if there is an address retry record and there is not a
1345 domain retry record; this implies that previous attempts to handle
1346 the address had the retry_use_local_parts option turned on. We use
1347 this as an approximation for the destination being like a local
1348 delivery, as in LMTP.
67bd1ab3
TF
1349
1350 I suspect this new check makes the old local delivery cutoff check
1351 redundant, but I have not verified this so I left the code in place.
1352
326cdc37
TF
1353TF/02 Correct gecos expansion when From: is a prefix of the username.
1354
1355 Test 0254 submits a message to Exim with the header
1356
1357 Resent-From: f
1358
1359 When I ran the test suite under the user fanf2, Exim expanded
1360 the header to contain my full name, whereas it should have added
1361 a Resent-Sender: header. It erroneously treats any prefix of the
1362 username as equal to the username.
1363
1364 This change corrects that bug.
1365
f62514b3
GF
1366GF/01 DCC debug and logging tidyup
1367 Error conditions log to paniclog rather than rejectlog.
1368 Debug lines prefixed by "DCC: " to remove any ambiguity.
1369
eb505532
TF
1370TF/03 Avoid unnecessary rebuilds of lookup-related code.
1371
14c7b357
PP
1372PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1373 Bug spotted by Jeremy Harris; was flawed since initial commit.
1374 Would have resulted in OCSP responses post-SNI triggering an Exim
1375 NULL dereference and crash.
1376
94eaf700
PP
1377JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1378
6f5a440a
PP
1379PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1380 Bug detection, analysis and fix by Samuel Thibault.
1381 Bugzilla 1331, Debian bug #698092.
1382
514ee161
SC
1383SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1384
fd98a5c6
JH
1385JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1386 Server implementation by Todd Lyons, client by JH.
1387 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1388 config variable "prdr_enable" controls whether the server
1389 advertises the facility. If the client requests PRDR a new
1390 acl_data_smtp_prdr ACL is called once for each recipient, after
1391 the body content is received and before the acl_smtp_data ACL.
4c04137d 1392 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1393 on the smtp transport, and the server advertisement.
1394 Default client logging of deliveries and rejections involving
1395 PRDR are flagged with the string "PRDR".
1396
035c7f1e
PP
1397PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1398 fclose(). Diagnosis by Todd Lyons.
1399
ff284120
PP
1400PP/17 Update configure.default to handle IPv6 localhost better.
1401 Patch by Alain Williams (plus minor tweaks).
1402 Bugzilla 880.
1403
26e72755
PP
1404PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1405 This is now consistent with GnuTLS, and is now documented: the
1406 previous undocumented portable approach to treating the option as
1407 unset was to force an expansion failure. That still works, and
1408 an empty string is now equivalent.
1409
0fbd9bff
PP
1410PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1411 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1412 not performing validation itself.
1413
700d22f3
PP
1414PP/20 Added force_command boolean option to pipe transport.
1415 Patch from Nick Koston, of cPanel Inc.
1416
fcc8e047
JH
1417JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1418 Bugzilla 321, 823.
1419
4c04137d 1420TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1421
8c020188
PP
1422PP/21 Fix eximon continuous updating with timestamped log-files.
1423 Broken in a format-string cleanup in 4.80, missed when I repaired the
1424 other false fix of the same issue.
1425 Report and fix from Heiko Schlichting.
1426 Bugzilla 1363.
1427
d13cdd30
PP
1428PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1429 Report from Prashanth Katuri.
1430
e2fbf4a2
PP
1431PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1432 It's SecureTransport, so affects any MacOS clients which use the
1433 system-integrated TLS libraries, including email clients.
1434
f4c1088b
PP
1435PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1436 using a MIME ACL for non-SMTP local injection.
1437 Report and assistance in diagnosis by Warren Baker.
1438
c5c2182f
PP
1439TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1440
73431ca9
JH
1441JH/16 Fix comparisons for 64b. Bugzilla 1385.
1442
2d07a215
TL
1443TL/09 Add expansion variable $authenticated_fail_id to keep track of
1444 last id that failed so it may be referenced in subsequent ACL's.
1445
a30a8861
TL
1446TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1447 Alexander Miroch.
1448
33382dd9
TL
1449TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1450 ldap library initialization, allowing self-signed CA's to be
1451 used. Also properly sets require_cert option later in code by
1452 using NULL (global ldap config) instead of ldap handle (per
1453 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1454
046172e6
TL
1455TL/12 Enhanced documentation in the ratelimit.pl script provided in
1456 the src/util/ subdirectory.
1457
581d7bee 1458TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1459 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1460 EXPERIMENTAL_TPDA.
1461
1462TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1463 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1464 redis_servers = needs to be configured which will be used by the redis
1465 lookup. Patch from Warren Baker, of The Packet Hub.
1466
237b2cf2
TL
1467TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1468
9fc5a352
TL
1469TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1470 hostname or reverse DNS when processing a host list. Used suggestions
1471 from multiple comments on this bug.
1a7b746d 1472
b10e4ec2
TL
1473TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1474
e2cebd74
TL
1475TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1476 Missed a few lines, added it to make the runtest require no keyboard
1477 interaction.
1478
1479TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1480 contains upper case chars. Make router use caseful_local_part.
1481
2519e60d
TL
1482TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1483 support when GnuTLS has been built with p11-kit.
1484
e78e6ecf 1485
4263f395
PP
1486Exim version 4.80.1
1487-------------------
1488
1489PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1490 CVE-2012-5671
2c422e6f 1491 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1492
ea722490 1493
b1770b6e 1494Exim version 4.80
0599f9cf
PP
1495-----------------
1496
1497PP/01 Handle short writes when writing local log-files.
1498 In practice, only affects FreeBSD (8 onwards).
1499 Bugzilla 1053, with thanks to Dmitry Isaikin.
1500
23c7e742
NM
1501NM/01 Bugzilla 949 - Documentation tweak
1502
b322aac8
NM
1503NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1504 improved.
1505
4a891427
NM
1506NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1507
c1e794ba 1508PP/02 Implemented gsasl authenticator.
b322aac8 1509
97753960
PP
1510PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1511
1512PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1513 `pkg-config foo` for cflags/libs.
1514
df6303fa
PP
1515PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1516 with rest of GSASL and with heimdal_gssapi.
1517
7e6a8985
PP
1518PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1519 `pkg-config foo` for cflags/libs for the TLS implementation.
1520
f1e05cc7 1521PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1522 properties get this fed in as external SSF. A number of robustness
1523 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1524
4c287009
PP
1525PP/08 cyrus_sasl server now expands the server_realm option.
1526
b98bb9ac
PP
1527PP/09 Bugzilla 1214 - Log authentication information in reject log.
1528 Patch by Jeremy Harris.
1529
4a6a987a
PP
1530PP/10 Added dbmjz lookup type.
1531
c45dd180 1532PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1533
7db8d074
PP
1534PP/12 MAIL args handles TAB as well as SP, for better interop with
1535 non-compliant senders.
1536 Analysis and variant patch by Todd Lyons.
1537
eae0036b 1538NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1539 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1540 Patch from Dirk Mueller <dmueller@suse.com>
1541
dec5017e
PP
1542PP/13 tls_peerdn now print-escaped for spool files.
1543 Observed some $tls_peerdn in wild which contained \n, which resulted
1544 in spool file corruption.
1545
c80c5570
PP
1546PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1547 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1548 or write after TLS renegotiation, which otherwise led to messages
1549 "Got SSL error 2".
1550
076b11e2
PP
1551TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1552 as a tracking header (ie: a signed header comes before the signature).
1553 Patch from Wolfgang Breyha.
1554
5407bfff
JH
1555JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1556 comma-sep list; embedded commas doubled.
1557
9e45c72b
PP
1558JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1559
e74376d8
PP
1560PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1561 diagnostics.
1562 Report and patch from Dmitry Banschikov.
1563
4c04137d 1564PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1565 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1566 failures. We appear to now support TLS1.1+ with Exim.
1567
7be682ca
PP
1568PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1569 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1570 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1571 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1572
ef840681
PP
1573PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1574 NULL dereference. Report and patch from Alun Jones.
1575
5bfb4cdf
PP
1576PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1577 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1578 Not seeing resolver debug output on NetBSD, but suspect this is a
1579 resolver implementation change.
1580
c6e95d22
PP
1581PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1582 Left warnings. Added "eximon gdb" invocation mode.
1583
9cbad13b
PP
1584PP/21 Defaulting "accept_8bitmime" to true, not false.
1585
9ee44efb
PP
1586PP/22 Added -bw for inetd wait mode support.
1587
6a6084f8
PP
1588PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1589 locate the relevant includes and libraries. Made this the default.
1590
12dd53c7
PP
1591PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1592 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1593
9e45c72b 1594JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1595 This may cause build issues on older platforms.
1596
17c76198
PP
1597PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1598 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1599 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1600 Added SNI support via GnuTLS too.
af3498d6 1601 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1602
53947857 1603PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1604
eae0036b 1605PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1606 Applied second patch from Janne, implementing suggestion to default
1607 multiple-strings-in-record handling to match SPF spec.
eae0036b 1608
9e45c72b 1609JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1610
7390e768
PP
1611PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1612 read-only, out of scope).
1613 Patch from Wolfgang Breyha, report from Stuart Northfield.
1614
08488c86
PP
1615PP/29 Fix three issues highlighted by clang analyser static analysis.
1616 Only crash-plausible issue would require the Cambridge-specific
1617 iplookup router and a misconfiguration.
1618 Report from Marcin Mirosław.
1619
6475bd82
PP
1620PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1621
81f91683
PP
1622PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1623 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1624 As part of this, removing so much warning spew let me fix some minor
1625 real issues in debug logging.
1626
5779e6aa
PP
1627PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1628 assignment on my part. Fixed.
1629
3375e053
PP
1630PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1631 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1632 Janne Snabb (who went above and beyond: thank you).
1633
1634PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1635 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1636 relatively easy to get wrong. Should also expose TLS library linkage
1637 problems.
3375e053 1638
9d26b8c0
PP
1639PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1640 64-bit ${eval} (JH/03).
1641
57eb9e91 1642PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1643 GNU libc to support some of the 64-bit stuff, should not lead to
1644 conflicts. Defined before os.h is pulled in, so if a given platform
1645 needs to override this, it can.
1646
16880d1a
PP
1647PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1648 protection layer was required, which is not implemented.
1649 Bugzilla 1254, patch from Wolfgang Breyha.
1650
a799883d
PP
1651PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1652 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1653 tls_dhparam take prime identifiers. Also unbreak combination of
1654 OpenSSL+DH_params+TLSSNI.
1655
3ecab157 1656PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1657
0599f9cf 1658
867fcbf5
PP
1659Exim version 4.77
1660-----------------
1661
1662PP/01 Solaris build fix for Oracle's LDAP libraries.
1663 Bugzilla 1109, patch from Stephen Usher.
1664
f1a29782
TF
1665TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1666
ab42bd23
TK
1667TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1668 whitespace trailer
867fcbf5 1669
0ca0cf52
TF
1670TF/02 Fix a couple more cases where we did not log the error message
1671 when unlink() failed. See also change 4.74-TF/03.
1672
921b12ca
TF
1673TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1674 lock up or crash if it happened to be inside a call to libc when it
1675 got a SIGUSR1 from exiwhat.
1676
1677 The SIGUSR1 handler appends the current process status to the process
1678 log which is later printed by exiwhat. It used to use the general
1679 purpose logging code to do this, but several functions it calls are
1680 not safe for signals.
1681
1682 The new output code in the SIGUSR1 handler is specific to the process
1683 log, and simple enough that it's easy to inspect for signal safety.
1684 Removing some special cases also simplifies the general logging code.
1685 Removing the spurious timestamps from the process log simplifies
1686 exiwhat.
1687
c99ce5c9
TF
1688TF/04 Improved ratelimit ACL condition.
1689
1690 The /noupdate option has been deprecated in favour of /readonly which
1691 has clearer semantics. The /leaky, /strict, and /readonly update modes
1692 are mutually exclusive. The update mode is no longer included in the
1693 database key; it just determines when the database is updated. (This
4c04137d 1694 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1695
1696 Exim now checks that the per_* options are used with an update mode that
1697 makes sense for the current ACL. For example, when Exim is processing a
1698 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1699 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1700 must specify per_mail/readonly. If you omit the update mode it defaults to
1701 /leaky where that makes sense (as before) or /readonly where required.
1702
1703 The /noupdate option is now undocumented but still supported for
1704 backwards compatibility. It is equivalent to /readonly except that in
1705 ACLs where /readonly is required you may specify /leaky/noupdate or
1706 /strict/noupdate which are treated the same as /readonly.
1707
1708 A useful new feature is the /count= option. This is a generalization
1709 of the per_byte option, so that you can measure the throughput of other
1710 aggregate values. For example, the per_byte option is now equivalent
1711 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1712
1713 The per_rcpt option has been generalized using the /count= mechanism
1714 (though it's more complicated than the per_byte equivalence). When it is
1715 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1716 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1717 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1718 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1719 Note that using per_rcpt with a non-readonly update mode in more than
1720 one ACL will cause the recipients to be double-counted. (The per_mail
1721 and per_byte options don't have this problem.)
1722
1723 The handling of very low rates has changed slightly. If the computed rate
1724 is less than the event's count (usually one) then this event is the first
1725 after a long gap. In this case the rate is set to the same as this event's
1726 count, so that the first message of a spam run is counted properly.
1727
1728 The major new feature is a mechanism for counting the rate of unique
1729 events. The new per_addr option counts the number of different
1730 recipients that someone has sent messages to in the last time period. It
1731 behaves like per_rcpt if all the recipient addresses are different, but
1732 duplicate recipient addresses do not increase the measured rate. Like
1733 the /count= option this is a general mechanism, so the per_addr option
1734 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1735 example, measure the rate that a client uses different sender addresses
1736 with the options per_mail/unique=$sender_address. There are further
1737 details in the main documentation.
1738
3634fc25
TF
1739TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1740
792e8a19
TF
1741TF/06 Removed a few PCRE remnants.
1742
5901f0ab
TF
1743TF/07 Automatically extract Exim's version number from tags in the git
1744 repository when doing development or release builds.
1745
7f2a2a43
PP
1746PP/02 Raise smtp_cmd_buffer_size to 16kB.
1747 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1748
061b7ebd
PP
1749PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1750 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1751 Bugzilla 97.
1752
e12f8c32
PP
1753PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1754
9e949f00 1755PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1756 Bugzilla 1078. Patch from John Horne.
1757
1758PP/06 Stop make process more reliably on build failure.
1759 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1760
555ae6af 1761PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1762 Bugzilla 1089. Patch from Heiko Schlittermann.
1763
1764PP/08 Handle ${run} returning more data than OS pipe buffer size.
1765 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1766
6f7fe114
PP
1767PP/09 Handle IPv6 addresses with SPF.
1768 Bugzilla 860. Patch from Wolfgang Breyha.
1769
c566dd90
PP
1770PP/10 GnuTLS: support TLS 1.2 & 1.1.
1771 Bugzilla 1156.
89f897c3
PP
1772 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1773 Bugzilla 1095.
c566dd90 1774
d6cc7c78 1775PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1776 New compile-time build option, EXPAND_LISTMATCH_RHS.
1777 New expansion conditions, "inlist", "inlisti".
1778
0d0e4455
PP
1779PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1780
3399bb60 1781PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1782
1783PP/14 fix log_write() format string regression from TF/03.
1784 Bugzilla 1152. Patch from Dmitry Isaikin.
1785
0ca0cf52 1786
10906672
PP
1787Exim version 4.76
1788-----------------
1789
1790PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1791
754a0503
PP
1792PP/02 Harmonised TLS library version reporting; only show if debugging.
1793 Layout now matches that introduced for other libraries in 4.74 PP/03.
1794
c0c7b2da
PP
1795PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1796
e97d1f08
PP
1797PP/04 New "dns_use_edns0" global option.
1798
084c1d8c
PP
1799PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1800 Bugzilla 1098.
1801
4e7ee012
PP
1802PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1803 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1804
c8d52a00
PP
1805TK/01 Updated PolarSSL code to 0.14.2.
1806 Bugzilla 1097. Patch from Andreas Metzler.
1807
54e7ce4a
PP
1808PP/07 Catch divide-by-zero in ${eval:...}.
1809 Fixes bugzilla 1102.
1810
5ee6f336
PP
1811PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1812 Bugzilla 1104.
1813
c8d52a00 1814TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1815 format-string attack -- SECURITY: remote arbitrary code execution.
1816
1817TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1818 time unintentionally subject to list matching rules, letting the header
1819 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1820 arbitrary string expansion). This allowed for information disclosure.
1821
1822PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1823 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1824
10906672 1825
aa097c4c
NM
1826Exim version 4.75
1827-----------------
1828
4c04137d 1829NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1830 Bugzilla 1073
1831
7f3d9eff
TF
1832TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1833 This fixes portability to compilers other than gcc, notably
1834 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1835
159f52d2
TF
1836TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1837 makefiles for portability to HP-UX and POSIX correctness.
1838
0cc9542a
PP
1839PP/01 Permit LOOKUP_foo enabling on the make command-line.
1840 Also via indented variable definition in the Makefile.
1841 (Debugging by Oliver Heesakkers).
1842
f7274286
PP
1843PP/02 Restore caching of spamd results with expanded spamd_address.
1844 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1845
7b797365
PP
1846PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1847 Improves build reliability. Fix from: Frank Elsner
1848
caacae52
NM
1849NM/02 Fix wide character breakage in the rfc2047 coding
1850 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1851
09dcaba9
NM
1852NM/03 Allow underscore in dnslist lookups
1853 Fixes bug 1026. Patch from Graeme Fowler
1854
bc19a55b
PP
1855PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1856 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1857
bd4c9759
NM
1858NM/04 Fixed exiqgrep to cope with mailq missing size issue
1859 Fixes bug 943.
1860
b72aab72
PP
1861PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1862 is logged, to avoid truncation. Patch from John Horne.
1863
2fe76745
PP
1864PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1865 Patch from Jakob Hirsch.
1866
76aa570c
PP
1867PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1868 SQL string expansion failure details.
1869 Patch from Andrey Oktyabrski.
1870
f1e5fef5
PP
1871PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1872 Patch from Simon Arlott.
1873
4d805ee9
PP
1874PP/09 New lookups functionality failed to compile on old gcc which rejects
1875 extern declarations in function scope.
1876 Patch from Oliver Fleischmann
1877
cd59ab18
PP
1878PP/10 Use sig_atomic_t for flags set from signal handlers.
1879 Check getgroups() return and improve debugging.
1880 Fixed developed for diagnosis in bug 927 (which turned out to be
1881 a kernel bug).
1882
332f5cf3
PP
1883PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1884 Patch from Mark Zealey.
1885
29cfeb94
PP
1886PP/12 Bugzilla 1056: Improved spamd server selection.
1887 Patch from Mark Zealey.
1888
660242ad
PP
1889PP/13 Bugzilla 1086: Deal with maildir quota file races.
1890 Based on patch from Heiko Schlittermann.
1891
bc4bc4c5
PP
1892PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1893 Patch from Uwe Doering, sign-off by Michael Haardt.
1894
2e64baa9
NM
1895NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1896 variable declaration deep within a block. Bug and patch from
1897 Dennis Davis.
1898
4c04137d 1899PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1900
6bac1a9a
PP
1901PP/16 Make DISABLE_DKIM build knob functional.
1902
552193f0
NM
1903NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1904 Patch by Simon Arlott
baeee2c1 1905
1b587e48
TF
1906TF/03 Fix valgrind.h portability to C89 compilers that do not support
1907 variable argument macros. Our copy now differs from upstream.
1908
aa097c4c 1909
8c07b69f
TF
1910Exim version 4.74
1911-----------------
1912
1913TF/01 Failure to get a lock on a hints database can have serious
1914 consequences so log it to the panic log.
1915
c0ea85ab
TF
1916TF/02 Log LMTP confirmation messages in the same way as SMTP,
1917 controlled using the smtp_confirmation log selector.
1918
0761d44e
TF
1919TF/03 Include the error message when we fail to unlink a spool file.
1920
0a349494
PP
1921DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1922 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1923 for maintaining out-of-tree patches for some time.
1924
1925PP/01 Bugzilla 139: Documentation and portability issues.
1926 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1927 Handle per-OS dynamic-module compilation flags.
1928
fea24b2e
PP
1929PP/02 Let /dev/null have normal permissions.
1930 The 4.73 fixes were a little too stringent and complained about the
1931 permissions on /dev/null. Exempt it from some checks.
1932 Reported by Andreas M. Kirchwitz.
1933
6545de78
PP
1934PP/03 Report version information for many libraries, including
1935 Exim version information for dynamically loaded libraries. Created
1936 version.h, now support a version extension string for distributors
1937 who patch heavily. Dynamic module ABI change.
1938
1670ef10
PP
1939PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1940 privilege escalation vulnerability whereby the Exim run-time user
1941 can cause root to append content of the attacker's choosing to
1942 arbitrary files.
1943
c0886197
PP
1944PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1945 (Wolfgang Breyha)
1946
b7487bce
PP
1947PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1948 If dropping privileges for untrusted macros, we disabled normal logging
1949 on the basis that it would fail; for the Exim run-time user, this is not
1950 the case, and it resulted in successful deliveries going unlogged.
1951 Fixed. Reported by Andreas Metzler.
1952
8c07b69f 1953
97fd1e48 1954Exim version 4.73
ed7f7860 1955-----------------
97fd1e48
PP
1956
1957PP/01 Date: & Message-Id: revert to normally being appended to a message,
1958 only prepend for the Resent-* case. Fixes regression introduced in
1959 Exim 4.70 by NM/22 for Bugzilla 607.
1960
6901c596
PP
1961PP/02 Include check_rfc2047_length in configure.default because we're seeing
1962 increasing numbers of administrators be bitten by this.
1963
a8c8d6b5
JJ
1964JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1965
77bb000f
PP
1966PP/03 Bugzilla 994: added openssl_options main configuration option.
1967
a29e5231
PP
1968PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1969
ec5a0394 1970PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 1971
55c75993
PP
1972PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1973
453a6645 1974PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
1975 without a peer certificate, leading to a segfault because of an
1976 assumption that peers always have certificates. Be a little more
453a6645
PP
1977 paranoid. Problem reported by Martin Tscholak.
1978
8544e77a
PP
1979PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1980 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1981 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
1982 CL also introduces -bmalware, various -d+acl logging additions and
1983 more caution in buffer sizes.
8544e77a 1984
83e029d5
PP
1985PP/09 Implemented reverse_ip expansion operator.
1986
ed7f7860
PP
1987PP/10 Bugzilla 937: provide a "debug" ACL control.
1988
7d9f747b
PP
1989PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1990
4b2241d2
PP
1991PP/12 Bugzilla 973: Implement --version.
1992
10385c15
PP
1993PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1994
dbc4b90d
PP
1995PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1996
532be449
PP
1997PP/15 Bugzilla 816: support multiple condition rules on Routers.
1998
6a8de854 1999PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2000 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2001 ignore trailing whitespace.
6a8de854 2002
5dc43717
JJ
2003JJ/02 prevent non-panic DKIM error from being sent to paniclog
2004
2005JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2006 "exim" to be used
55c75993 2007
3346ab01
PP
2008PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2009 Notification from Dr Andrew Aitchison.
2010
491fab4c
PP
2011PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2012 ExtendedDetectionInfo response format.
2013 Notification from John Horne.
2014
13eb9497
PP
2015PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2016 compatible.
2017
2018PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2019 XSL and documented dependency on system catalogs, with examples of how
2020 it normally works.
2021
7f36d675
DW
2022DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2023 access.
2024
c1d94452
DW
2025DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2026 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2027 configuration file which is writeable by the Exim user or group.
2028
e2f5dc15
DW
2029DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2030 of configuration files to cover files specified with the -C option if
2031 they are going to be used with root privileges, not just the default
2032 configuration file.
2033
cd25e41d
DW
2034DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2035 option (effectively making it always true).
2036
261dc43e
DW
2037DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2038 files to be used while preserving root privileges.
2039
fa32850b
DW
2040DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2041 that rogue child processes cannot use them.
2042
79d4bc3d
PP
2043PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2044 run-time user, instead of root.
2045
43236f35 2046PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2047 Exim run-time user without dropping privileges.
2048
fb08281f
DW
2049DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2050 result string, instead of calling string_vformat() twice with the same
2051 arguments.
3346ab01 2052
74935b98
DW
2053DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2054 for other users. Others should always drop root privileges if they use
2055 -C on the command line, even for a whitelisted configure file.
2056
90b6341f
DW
2057DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2058
57730b52
ML
2059NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2060
66581d1e 2061
465e92cf
JJ
2062Exim version 4.72
2063-----------------
2064
453a6645
PP
2065JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2066 $data_path, and $header_path variables; fixed documentation bugs and
2067 typos
465e92cf 2068
453a6645
PP
2069JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2070 exipick to access non-standard spools, including the "frozen" queue
2071 (Finput)
edae0343 2072
9bd3e22c
NM
2073NM/01 Bugzilla 965: Support mysql stored procedures.
2074 Patch from Alain Williams
2075
bb576ff7
NM
2076NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2077
5a1a5845
NM
2078NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2079 Patch from Andreas Metzler
2080
981a9fad
NM
2081NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2082 Patch from Kirill Miazine
2083
7fc497ee
NM
2084NM/05 Bugzilla 671: Added umask to procmail example.
2085
1a41defa
JJ
2086JJ/03 installed exipick 20100323.0, fixing doc bug
2087
a466095c 2088NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2089 directory. Notification and patch from Dan Rosenberg.
a466095c 2090
94a6bd0b
NM
2091TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2092
2093TK/02 Improve log output when DKIM signing operation fails.
2094
2095MH/01 Treat the transport option dkim_domain as a colon separated
2096 list, not as a single string, and sign the message with each element,
2097 omitting multiple occurences of the same signer.
2098
c1b141a8
NM
2099NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2100 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2101
b26eacf1 2102NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2103 Patch by Simon Arlott
2104
179c5980 2105PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2106 MBX locking. Notification from Dan Rosenberg.
179c5980 2107
9bd3e22c 2108
7c6d71af
NM
2109Exim version 4.71
2110-----------------
2111
7d9f747b 2112TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2113
f013fb92
NM
2114NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2115
0eb8eedd
NM
2116NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2117
663ee6d9
NM
2118NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2119
177ebd9b
NM
2120NM/04 Bugzilla 915: Flag broken perl installation during build.
2121
7c6d71af 2122
210f147e
NM
2123Exim version 4.70
2124-----------------
2125
cdd3bb85 2126TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2127 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2128
2129TK/02 Write list of recipients to X-Envelope-Sender header when building
2130 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2131 Hirsch).
cdd3bb85
TK
2132
2133TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2134 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2135 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2136
2137TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2138 by Mark Daniel Reidel <mr@df.eu>.
2139
210f147e
NM
2140NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2141 When building exim an external PCRE library is now needed -
2142 PCRE is a system library on the majority of modern systems.
2143 See entry on PCRE_LIBS in EDITME file.
2144
deafd5b3
NM
2145NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2146 conversation. Added nologin parameter to request.
7d9f747b 2147 Patch contributed by Kirill Miazine.
deafd5b3 2148
089793a4
TF
2149TF/01 Do not log submission mode rewrites if they do not change the address.
2150
5f16ca82
TF
2151TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2152
dae9d94e 2153NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2154 log files in place. Contributed by Roberto Lima.
dae9d94e 2155
7d9f747b 2156NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2157
06864c44
TF
2158TF/03 Bugzilla 615: When checking the local_parts router precondition
2159 after a local_part_suffix or local_part_prefix option, Exim now
2160 does not use the address's named list lookup cache, since this
2161 contains cached lookups for the whole local part.
2162
65a7d8c3 2163NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2164 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2165
23510047 2166TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2167
7d9f747b 2168NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2169
7d8eec3a 2170NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2171 Patch provided by Jan Srzednicki.
6c588e74 2172
89dec7b6
TF
2173TF/05 Leading white space used to be stripped from $spam_report which
2174 wrecked the formatting. Now it is preserved.
5f28a6e8 2175
a99de90c
TF
2176TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2177 that they are available at delivery time.
2178
e2803e40
TF
2179TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2180
7199e1ee
TF
2181TF/08 TLS error reporting now respects the incoming_interface and
2182 incoming_port log selectors.
2183
e276e04b
TF
2184TF/09 Produce a more useful error message if an SMTP transport's hosts
2185 setting expands to an empty string.
2186
ce552449 2187NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2188 Patch provided by Phil Pennock.
ce552449 2189
e765a0f1 2190NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2191 Patch provided by Richard Godbee.
e765a0f1 2192
4f054c63 2193NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2194 acl_smtp_notquit, added index entry.
4f054c63 2195
7d9f747b
PP
2196NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2197 Patch provided by Eugene Bujak.
24c929a2 2198
7d9f747b
PP
2199NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2200 accept(). Patch provided by Maxim Dounin.
cf73943b 2201
b52bc06e 2202NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2203 Patch provided by Phil Pennock.
b52bc06e 2204
447de4b0
NM
2205NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2206
4c69d561 2207NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2208 Patch provided by Brad "anomie" Jorsch.
4c69d561 2209
d5c39246 2210NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2211 Patch provided by Dean Brooks.
9b989985 2212
0b23848a
TK
2213TK/05 Add native DKIM support (does not depend on external libraries).
2214
8f3414a1 2215NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2216 Patch provided by Graeme Fowler.
e2aacdfd 2217
fb6f955d
NM
2218NM/16 Bugzilla 851: Documentation example syntax fix.
2219
2220NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2221
7d9f747b
PP
2222NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2223 lsearch.
dbb0bf41 2224
7d9f747b
PP
2225NM/19 Bugzilla 745: TLS version reporting.
2226 Patch provided by Phil Pennock.
f3766eb5 2227
7d9f747b
PP
2228NM/20 Bugzilla 167: bool: condition support.
2229 Patch provided by Phil Pennock.
36f12725 2230
7d9f747b
PP
2231NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2232 clients. Patch provided by Phil Pennock.
e6060e2c 2233
7d9f747b
PP
2234NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2235 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2236
7d9f747b
PP
2237NM/23 Bugzilla 687: Fix misparses in eximstats.
2238 Patch provided by Heiko Schlittermann.
d5c13d66 2239
7d9f747b
PP
2240NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2241 Patch provided by Heiko Schlittermann.
b2335c0b 2242
7d9f747b 2243NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2244 plus update to original patch.
f4cd9433 2245
7d9f747b 2246NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2247
7d9f747b
PP
2248NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2249 Patch provided by David Brownlee.
8dc71ab3 2250
7d9f747b 2251NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2252
7d9f747b 2253NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2254
7d9f747b 2255NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2256
7d9f747b 2257NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2258
17792b53 2259NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2260 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2261
7d9f747b
PP
2262NM/33 Bugzilla 898: Transport filter timeout fix.
2263 Patch by Todd Rinaldo.
52383f8f 2264
91576cec 2265NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2266 Patch by Serge Demonchaux.
5ca6d115 2267
7d9f747b
PP
2268NM/35 Bugzilla 39: Base64 decode bug fixes.
2269 Patch by Jakob Hirsch.
baee9eee 2270
7d9f747b 2271NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2272
7d9f747b 2273NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2274
7d9f747b 2275NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2276
7d9f747b 2277NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2278
deafd5b3 2279
47db1125
NM
2280Exim version 4.69
2281-----------------
2282
4b3504d0
TK
2283TK/01 Add preliminary DKIM support. Currently requires a forked version of
2284 ALT-N's libdkim that I have put here:
2285 http://duncanthrax.net/exim-experimental/
2286
2287 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2288 were called 'true' and it seems that C99 defines that as a reserved
2289 keyword to be used with 'bool' variable types. That means you could
2290 not include C99-style headers which use bools without triggering
2291 build errors in sieve.c.
2292
81ea09ca
NM
2293NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2294 as mailq or other aliases. Changed the --help handling significantly
2295 to do whats expected. exim_usage() emits usage/help information.
2296
f13cddcb
SC
2297SC/01 Added the -bylocaldomain option to eximstats.
2298
7d9f747b 2299NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2300
7d9f747b 2301NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2302
7d9f747b 2303NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2304
2305
eb4c0de6
PH
2306Exim version 4.68
2307-----------------
2308
2309PH/01 Another patch from the Sieve maintainer.
2310
6a3bceb1
PH
2311PH/02 When an IPv6 address is converted to a string for single-key lookup
2312 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2313 dots are used instead of colons so that keys in lsearch files need not
2314 contain colons. This was done some time before quoting was made available
2315 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2316 (notated using the quote facility) so as to distinguish them from IPv4
2317 keys. This meant that lookups for IP addresses in host lists did not work
2318 for iplsearch lookups.
2319
2320 This has been fixed by arranging for IPv6 addresses to be expressed with
2321 colons if the lookup type is iplsearch. This is not incompatible, because
2322 previously such lookups could never work.
2323
4c04137d 2324 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2325 ordinary lsearch keys. However, making the change in all cases is
2326 incompatible and would probably break a number of configurations.
2327
2e30fa9d
TK
2328TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2329 version.
2330
0806a9c5
MH
2331MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2332 conversion specification without a maximum field width, thereby enabling
2333 a rogue spamd server to cause a buffer overflow. While nobody in their
2334 right mind would setup Exim to query an untrusted spamd server, an
2335 attacker that gains access to a server running spamd could potentially
2336 exploit this vulnerability to run arbitrary code as the Exim user.
2337
ae276964
TK
2338TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2339 $primary_hostname instead of what libspf2 thinks the hosts name is.
2340
0f2cbd1b
MH
2341MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2342 a directory entry by the name of the lookup key. Previously, if a
2343 symlink pointed to a non-existing file or a file in a directory that
2344 Exim lacked permissions to read, a lookup for a key matching that
2345 symlink would fail. Now it is enough that a matching directory entry
2346 exists, symlink or not. (Bugzilla 503.)
2347
2b85bce7
PH
2348PH/03 The body_linecount and body_zerocount variables are now exported in the
2349 local_scan API.
2350
93655c46
PH
2351PH/04 Added the $dnslist_matched variable.
2352
6c512171
PH
2353PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2354 This means they are set thereafter only if the connection becomes
2355 encrypted.
2356
2357PH/06 Added the client_condition to authenticators so that some can be skipped
2358 by clients under certain conditions.
2359
aa6dc513
PH
2360PH/07 The error message for a badly-placed control=no_multiline_responses left
2361 "_responses" off the end of the name.
2362
a96603a0
PH
2363PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2364
8f240103
PH
2365PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2366 (without spaces) instead of just copying the configuration text.
2367
2368PH/10 Added the /noupdate option to the ratelimit ACL condition.
2369
d677b2f2
PH
2370PH/11 Added $max_received_linelength.
2371
d52120f2
PH
2372PH/12 Added +ignore_defer and +include_defer to host lists.
2373
64f2600a
PH
2374PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2375 way in which PCRE > 7.0 is built.
2376
8669f003
PH
2377PH/14 Implemented queue_only_load_latch.
2378
a4dc33a8
PH
2379PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2380 MAIL command. The effect was to mangle the value on 64-bit systems.
2381
d6a60c0f
PH
2382PH/16 Another patch from the Sieve maintainer.
2383
8f128379
PH
2384PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2385
8932dffe
PH
2386PH/18 If a system quota error occurred while trying to create the file for
2387 a maildir delivery, the message "Mailbox is full" was not appended to the
2388 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2389 only to a quota excession during the actual writing of the file.
d6a60c0f 2390
ddea74fa 2391PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2392 characters?) which causes problems in log lines. The DN values are now
2393 passed through string_printing() before being added to log lines.
2394
ddea74fa 2395PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2396 and InterBase are left for another time.)
2397
ddea74fa
PH
2398PH/21 Added message_body_newlines option.
2399
ce9f225c
PH
2400PH/22 Guard against possible overflow in moan_check_errorcopy().
2401
19897d52
PH
2402PH/23 POSIX allows open() to be a macro; guard against that.
2403
bc64a74d
PH
2404PH/24 If the recipient of an error message contained an @ in the local part
2405 (suitably quoted, of course), incorrect values were put in $domain and
2406 $local_part during the evaluation of errors_copy.
2407
eb4c0de6 2408
b4ed4da0
PH
2409Exim version 4.67
2410-----------------
2411
22ad45c9
MH
2412MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2413 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2414 Jan Srzednicki.
2415
b4ed4da0
PH
2416PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2417 issue a MAIL command.
2418
431b7361
PH
2419PH/02 In an ACL statement such as
2420
2421 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2422
2423 if a client was not listed at all, or was listed with a value other than
2424 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2425 the condition was not true (as it should be), so access was not denied.
2426 The bug was that the ! inversion was incorrectly passed on to the second
2427 item. This has been fixed.
2428
2429PH/03 Added additional dnslists conditions == and =& which are different from
2430 = and & when the dns lookup returns more than one IP address.
2431
83da1223
PH
2432PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2433 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2434
54fc8428
PH
2435PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2436 FSYNC, which compiles an option called disable_fsync that allows for
2437 bypassing fsync(). The documentation is heavily laced with warnings.
2438
34c5e8dd
SC
2439SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2440
bbe15da8
PH
2441PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2442 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2443 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2444 including adding "make clean"; (3) Added -fPIC when compiling the test
2445 dynamically loaded module, to get rid of a warning.
2446
0e8a9471
MH
2447MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2448 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2449 = 0s. The bug is otherwise harmless.
2450
f0872424
PH
2451PH/07 There was a bug in the dovecot authenticator such that the value of
2452 $auth1 could be overwritten, and so not correctly preserved, after a
2453 successful authentication. This usually meant that the value preserved by
2454 the server_setid option was incorrect.
2455
b01dd148
PH
2456PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2457
6bf342e1
PH
2458PH/09 Installed PCRE release 7.0.
2459
273f34d0
PH
2460PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2461 run for batched SMTP input. It is now run at the start of every message
2462 in the batch. While fixing this I discovered that the process information
2463 (output by running exiwhat) was not always getting set for -bs and -bS
2464 input. This is fixed, and it now also says "batched" for BSMTP.
2465
cf8b11a5
PH
2466PH/11 Added control=no_pipelining.
2467
41c7c167
PH
2468PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2469 patch, slightly modified), and move the expansion of helo_data till after
2470 the connection is made in the smtp transport (so it can use these
2471 values).
2472
9c57cbc0
PH
2473PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2474
f3f065bb
PH
2475PH/14 Added log_selector = +pid.
2476
047bdd8c
PH
2477PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2478
0ce9abe6
PH
2479PH/16 Add ${if forany and ${if forall.
2480
0e22dfd1
PH
2481PH/17 Added dsn_from option to vary the From: line in DSNs.
2482
4c590bd1
PH
2483PH/18 Flush SMTP output before performing a callout, unless control =
2484 no_callout_flush is set.
2485
09945f1e
PH
2486PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2487 was true (the default) a successful delivery failed to delete the retry
2488 item, thus causing premature timeout of the address. The bug is now
2489 fixed.
2490
c51b8e75
PH
2491PH/20 Added hosts_avoid_pipelining to the smtp transport.
2492
e28326d8 2493PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2494 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2495 other ACL rejections are.
2496
75b1493f
PH
2497PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2498 with slight modification.
2499
7c5214ec
PH
2500PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2501 draft, changing the syntax and factoring some duplicate code".
2502
4311097e
PH
2503PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2504 for deliveries of the second and subsequent messages over the same SMTP
2505 connection.
2506
29f89cad
PH
2507PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2508 ${reduce, with only minor "tidies".
2509
5e687460
SC
2510SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2511
c3611384
PH
2512PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2513 expansion side effects.
2514
5a11a7b4
PH
2515PH/27 When a message times out after an over-quota error from an Exim-imposed
2516 quota, the bounce message says "mailbox is full". This message was not
2517 being given when it was a system quota that was exceeded. It now should
2518 be the same.
2519
0e20aff9
MH
2520MH/03 Made $recipients available in local_scan(). local_scan() already has
2521 better access to the recipient list through recipients_list[], but
2522 $recipients can be useful in postmaster-provided expansion strings.
2523
ca86f471
PH
2524PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2525 in the case of a MAIL command with additional options following the
2526 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2527 were accidentally chopped off.
2528
a14e5636
PH
2529PH/29 SMTP synchronization checks are implemented when a command is read -
2530 there is a check that no more input is waiting when there shouldn't be
2531 any. However, for some commands, a delay in an ACL can mean that it is
2532 some time before the response is written. In this time, more input might
2533 arrive, invalidly. So now there are extra checks after an ACL has run for
2534 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2535 pipelining has not been advertised.
2536
ec95d1a6
PH
2537PH/30 MH's patch to allow iscntrl() characters to be list separators.
2538
42855d71
PH
2539PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2540 returned in the SMTP response when smtp_return_error_details was false.
2541 This has been fixed.
2542
57c2c631
PH
2543PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2544 instead of the C I/O that was originally supplied, because problems were
2545 reported on Solaris.
2546
58c01c94
PH
2547PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2548 Exim which did not show up earlier: it was assuming that a call to
2549 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2550 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2551 was a macro that became an assignment, so it seemed to work. This has
2552 changed to a proper function call with a void return, hence the compile
2553 error. Exim's code has been fixed.
2554
dee5a20a
PH
2555PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2556 cpus.
2557
d2ee6114
PH
2558PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2559
b2d5182b
PH
2560PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2561
79749a79
PH
2562PH/37 If a message is not accepted after it has had an id assigned (e.g.
2563 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2564 "Completed" line in the log. When some messages of this type were
2565 selected by exigrep, they were listed as "not completed". Others were
2566 picked up by some special patterns. I have improved the selection
2567 criteria to be more general.
79749a79 2568
c456d9bb
PH
2569PH/38 The host_find_failed option in the manualroute router can now be set
2570 to "ignore", to completely ignore a host whose IP address cannot be
2571 found. If all hosts are ignored, the behaviour is controlled by the new
2572 host_all_ignored option.
2573
cd9868ec
PH
2574PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2575 homing or because of multiple MX records with /mx) generated more than
2576 one IP address, and the following item turned out to be the local host,
2577 all the secondary addresses of the first item were incorrectly removed
2578 from the list, along with the local host and any following hosts (which
2579 is what is supposed to happen).
2580
ebeaf996
PH
2581PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2582 whoever called Exim into the -H file. In the case of the daemon it was
2583 behaving confusingly. When first started, it used values for whoever
2584 started the daemon, but after a SIGHUP it used the Exim user (because it
2585 calls itself on a restart). I have changed the code so that it now always
2586 uses the Exim user.
2587
2679d413
PH
2588PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2589 message are rejected with the same error (e.g. no authentication or bad
2590 sender address), and a DATA command is nevertheless sent (as can happen
2591 with PIPELINING or a stupid MUA), the error message that was given to the
2592 RCPT commands is included in the rejection of the DATA command. This is
2593 intended to be helpful for MUAs that show only the final error to their
2594 users.
2595
84024b72
PH
2596PH/42 Another patch from the Sieve maintainer.
2597
8005d38e
SC
2598SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2599 Eximstats - Fixed some broken HTML links and added missing column headers
2600 (Jez Hancock).
2601 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2602 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2603
3298c6c6
SC
2604SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2605
a43a27c5
PH
2606PH/43 Yet another patch from the Sieve maintainer.
2607
58eb016e 2608PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2609 the response to the final '.' that terminates a message, but only in the
2610 case where the client has not sent further data following the '.'
2611 (unfortunately, this is allowed). However, in many cases there won't be
2612 any further data because there won't be any more messages to send. A call
2613 to select() can be used: if it shows that the input is "ready", there is
2614 either input waiting, or the socket has been closed. An attempt to read
2615 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2616 would have sent an OK response which the client would never have see.
563b63fa
PH
2617 This could lead to message repetition. This fix should cure that, at
2618 least in a lot of common cases.
58eb016e 2619
b43a74ea
PH
2620PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2621 advertised in response to EHLO.
2622
b4ed4da0 2623
5dd1517f
PH
2624Exim version 4.66
2625-----------------
2626
2627PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2628 fixed by 4.65/MH/01 (is this a record?) are fixed:
2629
2630 (i) An empty string was always treated as zero by the numeric comparison
2631 operators. This behaviour has been restored.
2632
2633 (ii) It is documented that the numeric comparison operators always treat
2634 their arguments as decimal numbers. This was broken in that numbers
2635 starting with 0 were being interpreted as octal.
2636
2637 While fixing these problems I realized that there was another issue that
2638 hadn't been noticed. Values of message_size_limit (both the global option
2639 and the transport option) were treated as octal if they started with 0.
2640 The documentation was vague. These values are now always treated as
2641 decimal, and I will make that clear in the documentation.
2642
2643
93cfa765
TK
2644Exim version 4.65
2645-----------------
2646
2647TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2648 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2649 versions. (#438)
2650
d6066548
MH
2651MH/01 Don't check that the operands of numeric comparison operators are
2652 integers when their expansion is in "skipping" mode (fixes bug
2653 introduced by 4.64-PH/07).
2654
4362ff0d
PH
2655PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2656 child addresses, Exim now panics and dies. Previously, because the count
2657 is held in a short int, deliveries were likely to be lost. As such a
2658 large number of recipients for a single message is ridiculous
2659 (performance will be very, very poor), I have chosen to impose a limit
2660 rather than extend the field.
2661
93cfa765 2662
944e9e9c
TF
2663Exim version 4.64
2664-----------------
aa41d2de 2665
21d74bd9
TK
2666TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2667 leftover -K file (the existence of which was triggered by #402).
2668 While we were at it, introduced process PID as part of the -K
2669 filename. This should rule out race conditions when creating
2670 these files.
2671
2672TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2673 processing considerably. Previous code took too long for large mails,
2674 triggering a timeout which in turn triggers #401.
2675
2676TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2677 in the DK code in transports.c. sendfile() is not really portable,
2678 hence the _LINUX specificness.
944e9e9c
TF
2679
2680TF/01 In the add_headers option to the mail command in an Exim filter,
2681 there was a bug that Exim would claim a syntax error in any
2682 header after the first one which had an odd number of characters
2683 in the field name.
2684
2b1c6e3a
PH
2685PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2686 callout verification, Exim cached a "reject" for the entire domain. This
2687 is correct for most verifications, but it is not correct for a recipient
2688 verification with use_sender or use_postmaster set, because in that case
2689 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2690 case of MAIL FROM:<> rejection from other early rejections (e.g.
2691 rejection of HELO). When verifying a recipient using a non-null MAIL
2692 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2693 Whatever the result of the callout, the value of the domain cache is
2694 left unchanged (for any other kind of callout, getting as far as trying
2695 RCPT means that the domain itself is ok).
2696
1f872c80
PH
2697PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2698 gcc 4.1.1 threw up.
2699
2700PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2701 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2702 session, the daemon ignores ECONNECT errors and logs others; it now
2703 ignores EPIPE as well.
2704
d203e649
PH
2705PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2706 (quoted-printable decoding).
2707
cc2ed8f7 2708PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2709 later the small subsequent patch to fix an introduced bug.
f951fd57 2710
ddfcd446
PH
2711PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2712
d45b1de8
PH
2713PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2714
2715PH/08 An error is now given if message_size_limit is specified negative.
2716
38a0a95f 2717PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2718 to be given (somewhat) arbitrary names.
38a0a95f 2719
a2405d83
JJ
2720JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2721 in 4.64-PH/09.
2722
2723JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2724 miscellaneous code fixes
2725
6ea85e9a
PH
2726PH/10 Added the log_reject_target ACL modifier to specify where to log
2727 rejections.
2728
26da7e20
PH
2729PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2730 hostname. This is wrong, because it relates to the incoming message (and
2731 probably the interface on which it is arriving) and not to the outgoing
2732 callout (which could be using a different interface). This has been
2733 changed to use the value of the helo_data option from the smtp transport
2734 instead - this is what is used when a message is actually being sent. If
2735 there is no remote transport (possible with a router that sets up host
2736 addresses), $smtp_active_hostname is used.
6ea85e9a 2737
14aa5a05 2738PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2739 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2740 (a) The code assumed that strncpy() returns a negative number on buffer
2741 overflow, which isn't the case. Replaced with Exim's string_format()
2742 function.
2743 (b) There were several signed/unsigned issues. I just did the minimum
2744 hacking in of casts. There is scope for a larger refactoring.
2745 (c) The code used strcasecmp() which is not a standard C function.
2746 Replaced with Exim's strcmpic() function.
2747 (d) The code set only $1; it now sets $auth1 as well.
2748 (e) A simple test gave the error "authentication client didn't specify
2749 service in request". It would seem that Dovecot has changed its
2750 interface. Fortunately there's a specification; I followed it and
2751 changed what the client sends and it appears to be working now.
2752
ff75a1f7
PH
2753PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2754 decoding.
2755
e6f6568e
PH
2756PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2757 address A is aliased to B and C, where B exists and C does not. Without
2758 -v the output is "A verified" because verification stops after a
2759 successful redirection if more than one address is generated. However,
2760 with -v the child addresses are also verified. Exim was outputting "A
2761 failed to verify" and then showing the successful verification for C,
2762 with its parentage. It now outputs "B failed to verify", showing B's
2763 parentage before showing the successful verification of C.
2764
d6f6e0dc
PH
2765PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2766 look up a TXT record in a specific list after matching in a combined
2767 list.
2768
322050c2
PH
2769PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2770 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2771 they consult the DNS. I had assumed they would set it the way they
2772 wanted; and indeed my experiments on Linux seem to show that in some
2773 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2774 To be on the safe side, however, I have now made the interface to
2775 host_find_byname() similar to host_find_bydns(), with an argument
2776 containing the DNS resolver options. The host_find_byname() function now
2777 sets these options at its start, just as host_find_bydns() does. The smtp
2778 transport options dns_qualify_single and dns_search_parents are passed to
2779 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2780 of host_find_byname() use the default settings of RES_DEFNAMES
2781 (qualify_single) but not RES_DNSRCH (search_parents).
2782
08955dd3
PH
2783PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2784 spool_read_header() do less string testing, by means of a preliminary
2785 switch on the second character of optional "-foo" lines. (This is
2786 overdue, caused by the large number of possibilities that now exist.
2787 Originally there were few.) While I was there, I also converted the
2788 str(n)cmp tests so they don't re-test the leading "-" and the first
2789 character, in the hope this might squeeze out yet more improvement.
2790
1eccaa59
PH
2791PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2792 flag allowing group syntax was set by the header_syntax check but not
2793 turned off, possible causing trouble later; (2) The flag was not being
2794 set at all for the header_verify test, causing "group"-style headers to
2795 be rejected. I have now set it in this case, and also caused header_
2796 verify to ignore an empty address taken from a group. While doing this, I
2797 came across some other cases where the code for allowing group syntax
2798 while scanning a header line wasn't quite right (mostly, not resetting
2799 the flag correctly in the right place). These bugs could have caused
2800 trouble for malformed header lines. I hope it is now all correct.
2801
602e59e5
PH
2802PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2803 with the "reply" argument non-NULL. The code, however (which originally
2804 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2805 but it didn't always do it. This confused somebody who was copying the
2806 code for some other use. I have removed all the tests.
2807
411ef850
PH
2808PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2809 feature that was used to support insecure browsers during the U.S. crypto
2810 embargo. It requires special client support, and Exim is probably the
2811 only MTA that supported it -- and would never use it because real RSA is
2812 always available. This code has been removed, because it had the bad
2813 effect of slowing Exim down by computing (never used) parameters for the
2814 RSA_EXPORT functionality.
2815
7befa435
PH
2816PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2817 authenticator to fail if there's a tab character in the incoming data
2818 (there should never be unless someone is messing about, as it's supposed
2819 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2820 if the connection is using TLS or if the remote IP is the same as the
2821 local IP, and the "valid-client-cert option" if a client certificate has
2822 been verified.
2823
48da4259 2824PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2825 authenticators. This can be used for authorization after authentication
2826 succeeds. (In the case of plaintext, it servers for both authentication
2827 and authorization.)
2828
48da4259
PH
2829PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2830 if any retry times were supplied.
2831
d1d5595c
PH
2832PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2833 connection, where there is no client IP address to check. In this
2834 situation, the verify now always succeeds.
2835
0ef732d9
PH
2836PH/25 Applied John Jetmore's -Mset patch.
2837
328895cc
PH
2838PH/26 Added -bem to be like -Mset, but loading a message from a file.
2839
fd700877
PH
2840PH/27 In a string expansion for a processed (not raw) header when multiple
2841 headers of the same name were present, leading whitespace was being
2842 removed from all of them, but trailing whitespace was being removed only
2843 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2844 before concatenation. Completely empty headers in a concatenation (as
2845 before) are ignored.
fd700877 2846
8dce1a6f
PH
2847PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2848 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2849
17af4a17
PH
2850PH/29 [Removed. This was a change that I later backed out, and forgot to
2851 correct the ChangeLog entry (that I had efficiently created) before
2852 committing the later change.]
f6c332bd
PH
2853
2854PH/30 Exim was sometimes attempting to deliver messages that had suffered
2855 address errors (4xx response to RCPT) over the same connection as other
2856 messages routed to the same hosts. Such deliveries are always "forced",
2857 so retry times are not inspected. This resulted in far too many retries
2858 for the affected addresses. The effect occurred only when there were more
2859 hosts than the hosts_max_try setting in the smtp transport when it had
2860 the 4xx errors. Those hosts that it had tried were not added to the list
2861 of hosts for which the message was waiting, so if all were tried, there
2862 was no problem. Two fixes have been applied:
2863
2864 (i) If there are any address or message errors in an SMTP delivery, none
2865 of the hosts (tried or untried) are now added to the list of hosts
2866 for which the message is waiting, so the message should not be a
2867 candidate for sending over the same connection that was used for a
2868 successful delivery of some other message. This seems entirely
2869 reasonable: after all the message is NOT "waiting for some host".
2870 This is so "obvious" that I'm not sure why it wasn't done
2871 previously. Hope I haven't missed anything, but it can't do any
2872 harm, as the worst effect is to miss an optimization.
2873
2874 (ii) If, despite (i), such a delivery is accidentally attempted, the
2875 routing retry time is respected, so at least it doesn't keep
2876 hammering the server.
2877
c1114884
PH
2878PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2879 in ${readsocket because some servers need this prod.
2880
7a0743eb
PH
2881PH/32 Added some extra debug output when updating a wait-xxx database.
2882
0d85fa3f
PH
2883PH/33 The hint "could be header name not terminated by colon", which has been
2884 given for certain expansion errors for a long time, was not being given
2885 for the ${if def:h_colon_omitted{... case.
2886
1bf43b78
PH
2887PH/34 The spec says: "With one important exception, whenever a domain list is
2888 being scanned, $domain contains the subject domain." There was at least
2889 one case where this was not true.
2890
520de300
PH
2891PH/35 The error "getsockname() failed: connection reset by peer" was being
2892 written to the panic log as well as the main log, but it isn't really
2893 panic-worthy as it just means the connection died rather early on. I have
2894 removed the panic log writing for the ECONNRESET error when getsockname()
2895 fails.
2896
48c7f9e2
PH
2897PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2898 runs only) independently of the message's sender address. This meant
2899 that, if the 4xx error was in fact related to the sender, a different
2900 message to the same recipient with a different sender could confuse
4c04137d 2901 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2902 server, but other circumstances could also provoke similar problems.
2903 I have changed the default so that the retry time for these errors is now
2904 based a combination of the sender and recipient addresses. This change
2905 can be overridden by setting address_retry_include_sender=false in the
2906 smtp transport.
2907
99ea1c86
PH
2908PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2909 remote server are returned as part of bounce messages. This was not
2910 happening for LMTP over a pipe (the lmtp transport), but now it is the
2911 same for both kinds of LMTP.
2912
a2042e78
PH
2913PH/38 Despite being documented as not happening, Exim was rewriting addresses
2914 in header lines that were in fact CNAMEs. This is no longer the case.
2915
4fbcfc2e
PH
2916PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2917 and queue runs started by the daemon processed all messages. This has
2918 been fixed so that -R and -S can now usefully be given with -q<time>.
2919
aa41d2de
PH
2920PH/40 Import PCRE release 6.7 (fixes some bugs).
2921
af561417
PH
2922PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2923
3cc66b45
PH
2924PH/42 Give an error if -q is specified more than once.
2925
194cc0e4
PH
2926PH/43 Renamed the variables $interface_address and $interface_port as
2927 $received_ip_address and $received_port, to make it clear that these
2928 values apply to message reception, and not to the outgoing interface when
2929 a message is delivered. (The old names remain recognized, of course.)
2930
a401ddaa
PH
2931PH/44 There was no timeout on the connect() call when using a Unix domain
2932 socket in the ${readsocket expansion. There now is.
2933
4e88a19f
PH
2934PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2935 be meaningful with "accept".
2936
d7d7b289
SC
2937SC/01 Eximstats V1.43
2938 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2939
2940SC/02 Eximstats V1.44
2941 Use a glob alias rather than an array ref in the generated
2942 parser. This improves both readability and performance.
2943
2944SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2945 Collect SpamAssassin and rejection statistics.
2946 Don't display local sender or destination tables unless
2947 there is data to show.
2948 Added average volumes into the top table text output.
2949
2950SC/04 Eximstats V1.46
2951 Collect data on the number of addresses (recipients)
2952 as well as the number of messages.
2953
2954SC/05 Eximstats V1.47
2955 Added 'Message too big' to the list of mail rejection
2956 reasons (thanks to Marco Gaiarin).
2957
2958SC/06 Eximstats V1.48
2959 Mainlog lines which have GMT offsets and are too short to
2960 have a flag are now skipped.
2961
2962SC/07 Eximstats V1.49 (Alain Williams)
2963 Added the -emptyok flag.
2964
2965SC/08 Eximstats V1.50
2966 Fixes for obtaining the IP address from reject messages.
2967
0ea2a468
JJ
2968JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2969 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 2970 whitespace changes from 4.64-PH/27
0ea2a468
JJ
2971
2972JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2973 match 4.64-PH/13
2974
2975JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2976 are found, allow negative numbers in numeric criteria)
2977
2978JJ/06 exipick.20061117.2, added new $message_body_missing variable
2979
2980JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2981 to match changes made in 4.64-PH/43
2982
8a10f5a4
PH
2983PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2984
30e18802
PH
2985PH/47 Put in an explicit test for a DNS lookup of an address record where the
2986 "domain" is actually an IP address, and force a failure. This locks out
2987 those revolvers/nameservers that support "A-for-A" lookups, in
2988 contravention of the specifications.
2989
55728a4f
PH
2990PH/48 When a host name was looked up from an IP address, and the subsequent
2991 forward lookup of the name timed out, the host name was left in
2992 $sender_host_name, contrary to the specification.
d7d7b289 2993
d7837193
PH
2994PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2995 restricted to single-key lookups, Exim was not diagnosing an error if
2996 * or *@ was used with a query-style lookup.
2997
87054a31
PH
2998PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2999
ea2c01d2
MH
3000MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3001 long ago, but noone interested enough thought of it. Let's just say that
3002 the "1.1" means that there are some new functions that weren't there at
3003 some point in the past.
3004
e4fa6968
PH
3005PH/51 Error processing for expansion failure of helo_data from an smtp
3006 transport during callout processing was broken.
3007
56f5d9bd
PH
3008PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3009 tested/used via the -bh/-bhc/-bs options.
3010
922e1c28
PH
3011PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3012 bug, fixed in subsequent PCRE releases).
3013
21eb6e72
PH
3014PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3015 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3016
a0540757
PH
3017PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3018
944e9e9c 3019
478be7b0
SC
3020Exim version 4.63
3021-----------------
3022
3023SC/01 Use a glob alias rather than an array ref in eximstats generated
3024 parser. This improves both readability and performance.
3025
3026SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3027 Don't display local sender or destination tables in eximstats unless
3028 there is data to show.
3029 Added average volumes into the eximstats top table text output.
3030
3031SC/03 Collect data on the number of addresses (recipients) as well
3032 as the number of messages in eximstats.
3033
2b965a65
TF
3034TF/01 Correct an error in the documentation for the redirect router. Exim
3035 does (usually) call initgroups() when daemonizing.
478be7b0 3036
45b91596
PH
3037TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3038 with consistent privilege compared to when running as a daemon.
478be7b0 3039
c59f5781
TF
3040TF/03 Note in the spec that $authenticated_id is not set for local
3041 submissions from trusted users.
3042
90fc3069
TF
3043TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3044 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3045
6083aca0
TF
3046TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3047 by adding some example configuration directives to the default
3048 configuration file. A little bit of work is required to uncomment the
3049 directives and define how usernames and passwords are checked, but
3050 there is now a framework to start from.
3051
765b530f
PH
3052PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3053 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3054 without this. I don't know how relevant this is to other LDAP libraries.
3055
4e167a8c
PH
3056PH/02 Add the verb name to the "unknown ACL verb" error.
3057
4608d683
PH
3058PH/03 Magnus Holmgren's patch for filter_prepend_home.
3059
b8dc3e4a
PH
3060PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3061
5418e93b
PH
3062PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3063 directory not expanded when it should be if an expanded home directory
3064 was set for the address (which is overridden by the transport).
3065
b4a9bda2
PH
3066PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3067 libradius.
3068
45b91596
PH
3069PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3070 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3071 because it is too late at that time, and has no effect.
3072
5547e2c5
PH
3073PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3074 security issue with \' (bugzilla #107). I could not use the
3075 PQescapeStringConn() function, because it needs a PGconn value as one of
3076 its arguments.
3077
dbcef0ea
PH
3078PH/08 When testing addresses using -bt, indicate those final addresses that
3079 are duplicates that would not cause an additional delivery. At least one
3080 person was confused, thinking that -bt output corresponded to deliveries.
3081 (Suppressing duplicates isn't a good idea as you lose the information
3082 about possibly different redirections that led to the duplicates.)
3083
25257489
PH
3084PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3085 systems where poll() doesn't work, in particular OS X.
3086
c816d124
PH
3087PH/10 Added more information to debugging output for retry time not reached.
3088
a9ccd69a
PH
3089PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3090 operations in malware.c.
3091
75fa1910
PH
3092PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3093 signatures.
3094
a7d7aa58
PH
3095PH/13 If write_rejectlog was set false when logging was sent to syslog with
3096 syslog_duplication set false, log lines that would normally be written
3097 both the the main log and to the reject log were not written to syslog at
3098 all.
3099
42119b09
PH
3100PH/14 In the default configuration, change the use of "message" in ACL warn
3101 statements to "add_header".
3102
41609df5
PH
3103PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3104 not followed by a command (e.g. "seen endif").
3105
a5bd321b
PH
3106PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3107 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3108 latter.
3109
e85a7ad5 3110PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3111 so that it is now:
3112
e85a7ad5
PH
3113 ${if or { \
3114 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3115 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3116 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3117 }{no}{yes}}
3118
e85a7ad5
PH
3119 The Auto-Submitted: and various List- headers are standardised, whereas I
3120 don't think Precedence: ever was.
5dff5817 3121
d8fe1c03
PH
3122PH/18 Refactored debugging code in route_finduser() to show more information,
3123 in particular, the error code if getpwnam() issues one.
3124
16282d2b
PH
3125PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3126 This is apparently needed in addition to the PH/07 change above to avoid
3127 any possible encoding problems.
3128
35d40a98
PH
3129PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3130 but not after initializing Perl.
3131
034d99ab
PH
3132PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3133 output them only if debugging. By default they are written stderr,
3134 apparently, which is not desirable.
3135
6ec97b1b
PH
3136PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3137 queries.
3138
e22ca4ac
JJ
3139JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3140 --not options
3141
3142JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3143
33d73e3b
PH
3144PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3145 authenticated or an ident call has been made. Suppress the default
3146 values for $authenticated_id and $authenticated_sender (but permit -oMai
3147 and -oMas) when testing with -bh.
3148
9ecb03f3
PH
3149PH/24 Re-jigged the order of the tests in the default configuration so that the
3150 tests for valid domains and recipients precede the DNS black list and CSA
3151 tests, on the grounds that those ones are more expensive.
3152
084efe8d
PH
3153PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3154 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3155 This bug exists in every version of Exim that I still have, right back to
3156 0.12.
3157
366fc9f0
PH
3158PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3159 However, an attempt to turn on case-sensitivity in a regex key by
3160 including (?-i) didn't work because the subject string was already
3161 lowercased, and the effects were non-intuitive. It turns out that a
3162 one-line patch can be used to allow (?-i) to work as expected.
3163
c59f5781 3164
c887c79e
TF
3165Exim version 4.62
3166-----------------
3167
3168TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3169 other effects) broke the use of negated acl sub-conditions.
3170
1cce3af8
PH
3171PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3172 patch).
3173
afb3eaaf
PH
3174PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3175 "Deny" causes Exim to reject the incoming connection with a 554 error.
3176 Unfortunately, if there is a major crisis, such as a disk failure,
3177 tcp-wrappers gives "deny", whereas what one would like would be some
3178 kind of temporary error. A kludge has been added to help with this.
3179 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3180 554 error is used if errno is still zero or contains ENOENT (which occurs
3181 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3182 451 error is used.
3183
e173618b
PH
3184PH/03 Add -lutil to the default FreeBSD LIBS setting.
3185
dd16e114
PH
3186PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3187 errors. Otherwise a message that provokes a temporary error (when other
3188 messages do not) can cause a whole host to time out.
3189
f7fd3850
PH
3190PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3191 addresses were routed directly to files or pipes from a redirect router.
3192 File deliveries just didn't batch; pipe deliveries might have suffered
3193 odd errors.
3194
d87df92c
PH
3195PH/06 A failure to get a lock for a hints database would erroneously always say
3196 "Failed to get write lock", even when it was really a read lock.
3197
7e9f683d
PH
3198PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3199 of 0600. This has been changed to use the value of the lockfile_mode
3200 option (which defaults to 0600).
3201
bfad5236
PH
3202PH/08 Applied small patch from the Sieve maintainer.
3203
01c490df
PH
3204PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3205 folder from quota calculations, a direct delivery into this folder messed
3206 up the contents of the maildirsize file. This was because the regex was
3207 used only to exclude .Trash (or whatever) when the size of the mailbox
3208 was calculated. There was no check that a delivery was happening into an
3209 excluded directory. This bug has been fixed by ignoring all quota
3210 processing for deliveries into excluded directories.
3211
d6629cdc
PH
3212PH/10 Added the maildirfolder_create_regex option to appendfile.
3213
1cce3af8 3214
214e2000
PH
3215Exim version 4.61
3216-----------------
3217
3218PH/01 The code for finding all the local interface addresses on a FreeBSD
3219 system running IPv6 was broken. This may well have applied to all BSD
3220 systems, as well as to others that have similar system calls. The broken
3221 code found IPv4 interfaces correctly, but gave incorrect values for the
3222 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3223 that it would not match correctly against @[] and not recognize the IPv6
3224 addresses as local.
3225
f9daeae0
PH
3226PH/02 The ipliteral router was not recognizing addresses of the form user@
3227 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3228
7e66e54d
PH
3229PH/03 Added disable_ipv6.
3230
c8ea1597
PH
3231PH/04 Changed $reply_address to use the raw form of the headers instead of the
3232 decoded form, because it is most often used to construct To: headers
3233 lines in autoreplies, and the decoded form may well be syntactically
3234 invalid. However, $reply_address has leading white space removed, and all
3235 newlines turned into spaces so that the autoreply transport does not
3236 grumble.
3237
911f6fde
PH
3238PH/05 If group was specified without a user on a router, and no group or user
3239 was specified on a transport, the group from the router was ignored.
3240
47ca6d6c
PH
3241PH/06 Increased the number of ACL variables to 20 of each type, and arranged
3242 for visible compile-time settings that can be used to change these
3243 numbers, for those that want even more. Backwards compatibility with old
3244 spool files has been maintained. However, going back to a previous Exim
3245 release will lost any variables that are in spool files.
3246
ed0e9820
PH
3247PH/07 Two small changes when running in the test harness: increase delay when
3248 passing a TCP/IP connection to a new process, in case the original
3249 process has to generate a bounce, and remove special handling of
3250 127.0.0.2 (sic), which is no longer necessary.
3251
eff37e47
PH
3252PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
3253 be the same on different OS.
3254
1921d2ea
PH
3255PH/09 Moved a debug statement in filter processing to avoid a race problem when
3256 testing.
3257
b3f69ca8
JJ
3258JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
3259 whether --show-vars was specified or not
3260
3261JJ/02 exipick: Added support for new ACL variable spool format introduced
3262 in 4.61-PH/06
3263
424a1c63
PH
3264PH/10 Fixed another bug related to PH/04 above: if an incoming message had a