Docs: tidy the ChangeLog file
[exim.git] / doc / doc-txt / ChangeLog
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495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
bb264f6b
JH
8Exim version 4.91
9-----------------
459fca58 10
c39c8870 11GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
JH
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.
c39c8870 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
857eaf37
JH
181JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
182 transport-filters or DKIM-signing. The restriction was lost in the
183 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 184 Extend the restriction to also cover ARC-signing.
857eaf37 185
c85476e9
JH
186JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
187 in defer=pass mode supply a 450 to the initiator. Previously the message
188 would be spooled.
189
405074ad
PP
190PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
191 tls_require_ciphers is used as before.
192
bbfb5dcd 193
acfc18c3
PP
194Exim version 4.90
195-----------------
196
197JH/01 Rework error string handling in TLS interface so that the caller in
198 more cases is responsible for logging. This permits library-sourced
199 string to be attached to addresses during delivery, and collapses
200 pairs of long lines into single ones.
201
856d1e16
PP
202PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
203 during configuration. Wildcards are allowed and expanded.
204
b9df1829
JH
205JH/02 Rework error string handling in DKIM to pass more info back to callers.
206 This permits better logging.
207
875512a3
JH
208JH/03 Rework the transport continued-connection mechanism: when TLS is active,
209 do not close it down and have the child transport start it up again on
210 the passed-on TCP connection. Instead, proxy the child (and any
211 subsequent ones) for TLS via a unix-domain socket channel. Logging is
212 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 213 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 214
fc3f96af
JH
215JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
216 identical IP addresses on different listening ports. Will also affect
217 "exiwhat" output.
218
98913c8e
BK
219PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
220 add noisy ifdef guards to special-case this sillyness.
221 Patch from Bernd Kuhls.
222
8d909960
JH
223JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
224 than 255 are no longer allowed.
225
7006ee24
JH
226JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
227 Disable the session-cache too, which might reduce our load. Since we
228 currrectly use a new context for every connection, both as server and
229 client, there is no benefit for these.
230 GnuTLS appears to not support tickets server-side by default (we don't
231 call gnutls_session_ticket_enable_server()) but client side is enabled
232 by default on recent versions (3.1.3 +) unless the PFS priority string
233 is used (3.2.4 +).
234
6e411084
PP
235PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
236 <https://reproducible-builds.org/specs/source-date-epoch/>.
237
4c2471ca
JH
238JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
239 the check for any unsuccessful recipients did not notice the limit, and
240 erroneously found still-pending ones.
241
4e910c01
JH
242JH/08 Pipeline CHUNKING command and data together, on kernels that support
243 MSG_MORE. Only in-clear (not on TLS connections).
244
42055a33
JH
245JH/09 Avoid using a temporary file during transport using dkim. Unless a
246 transport-filter is involved we can buffer the headers in memory for
247 creating the signature, and read the spool data file once for the
248 signature and again for transmission.
249
eeb35890
JH
250JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
251 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 252 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 253
b7d3afcf
JH
254JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
255 case where the routing stage had gathered several addresses to send to
256 a host before calling the transport for the first, we previously failed
257 to close down TLS in the old transport process before passing the TCP
258 connection to the new process. The new one sent a STARTTLS command
259 which naturally failed, giving a failed delivery and bloating the retry
260 database. Investigation and fix prototype from Wolfgang Breyha.
261
40525d07
JH
262JH/12 Fix check on SMTP command input synchronisation. Previously there were
263 false-negatives in the check that the sender had not preempted a response
264 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 265 awareness of the SMTP input buffering.
40525d07 266
f33875c3
PP
267PP/04 Add commandline_checks_require_admin option.
268 Exim drops privileges sanely, various checks such as -be aren't a
269 security problem, as long as you trust local users with access to their
270 own account. When invoked by services which pass untrusted data to
271 Exim, this might be an issue. Set this option in main configuration
272 AND make fixes to the calling application, such as using `--` to stop
273 processing options.
274
a5ffa9b4
JH
275JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
276 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
277 responses to those, into a single TLS record each way (this usually means
278 a single packet). As a side issue, smtp_enforce_sync now works on TLS
279 connections.
925ac8e4 280
6600985a
PP
281PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
282 affects you only if you're dancing at the edge of the param size limits.
283 If you are, and this message makes sense to you, then: raise the
284 configured limit or use OpenSSL 1.1. Nothing we can do for older
285 versions.
286
ac4d558b
JH
287JH/14 For the "sock" variant of the malware scanner interface, accept an empty
288 cmdline element to get the documented default one. Previously it was
289 inaccessible.
290
e69636bc
JH
291JH/15 Fix a crash in the smtp transport caused when two hosts in succession
292 are unsuable for non-message-specific reasons - eg. connection timeout,
293 banner-time rejection.
294
a843a57e
JH
295JH/16 Fix logging of delivery remote port, when specified by router, under
296 callout/hold.
297
8e041ae0
PP
298PP/06 Repair manualroute's ability to take options in any order, even if one
299 is the name of a transport.
833c70bc
PP
300 Fixes bug 2140.
301
35a04365
HSHR
302HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
303
4226691b
JH
304JH/17 Change the list-building routines interface to use the expanding-string
305 triplet model, for better allocation and copying behaviour.
306
d185889f
JH
307JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
308 Previously it was constructed the first time a possibly-matching string
309 was met in the configuration file input during startup; now it is done
310 during compilation.
311
0a6c178c
JH
312JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
313 compatible one, to avoid the (poorly documented) possibility of a config
314 file in the working directory redirecting the DB files, possibly correpting
02745400 315 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 316
fae8970d
JH
317JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
318 cache-hot. Previously, although the result was properly cached, the
319 initial verify call returned a defer.
320
ad1a76fe 321JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
322 the main verify for receipient in uncached-mode.
323
ad1a76fe
JH
324JH/22 Retire historical build files to an "unsupported" subdir. These are
325 defined as "ones for which we have no current evidence of testing".
326
135e9496
JH
327JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
328 if present. Previously it was ignored.
329
f2ed27cf
JH
330JH/24 Start using specified-initialisers in C structure init coding. This is
331 a C99 feature (it's 2017, so now considered safe).
332
7eb0e5d2
JH
333JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
334 if was a fixed-sized field and bitmask ops via macros; it is now more
335 extensible.
336
4f9f4be4
337PP/07 GitHub PR 56: Apply MariaDB build fix.
338 Patch provided by Jaroslav Škarvada.
339
dc4de9cc
PP
340PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
341 during Coverity cleanups [4.87 JH/47]
342 Diagnosis and fix provided by Michael Fischer v. Mollard.
343
ea18931d
JH
344JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
345 the right size to place the terminating semicolon on its own folded
346 line, the header hash was calculated to an incorrect value thanks to
347 the (relaxed) space the fold became.
348
2cee425a
HSHR
349HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
350 and confused the parent.
351
848214f7
JH
352JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
353 which could crash as a result. This could lead to undeliverable messages.
354
9e0ed81f
JH
355JH/28 Logging: "next input sent too soon" now shows where input was truncated
356 for log purposes.
357
2540f2f8
JH
358JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
359 matters on fast-turnover and PID-randomising systems, which were getting
360 out-of-order delivery.
361
e5ab0ba9
JH
362JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
363 a possibly-overlapping copy. The symptom was that "Remote host closed
364 connection in response to HELO" was logged instead of the actual 4xx
365 error for the HELO.
366
e99a3a6c
JH
367JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
368 Previously only that bufferd was discarded, resulting in SYMTP command
369 desynchronisation.
370
18067c75
JH
371JH/32 DKIM: when a message has multiple signatures matching an identity given
372 in dkim_verify_signers, run the dkim acl once for each. Previously only
373 one run was done. Bug 2189.
374
72934ba7
JH
375JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
376 "panic the current process" to "deliberately defer". The panic log is
377 still written with the problem list name; the mail and reject logs now
378 get a temp-reject line for the message that was being handled, saying
379 something like "domains check lookup or other defer". The SMTP 451
380 message is still "Temporary local problem".
381
625667b6
JH
382JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
383 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
384 freed. CVE-2017-16943.
385
386HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
387 from SMTP input. Previously it was always done; now only done for DATA
388 and not BDAT commands. CVE-2017-16944.
625667b6 389
d21bf202
JH
390JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
391 to the message (such as an overlong header line). Previously this was
392 not done and we did not exit BDAT mode. Followon from the previous item
393 though a different problem.
394
acfc18c3 395
fd047340 396Exim version 4.89
acfc18c3 397-----------------
4c57a40e 398
9427e879 399JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 400 than -2003 did; needs libidn2 in addition to libidn.
fd047340 401
7b283890
JH
402JH/02 The path option on a pipe transport is now expanded before use.
403
4c57a40e
PP
404PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
405 Patch provided by "Björn", documentation fix added too.
406
5d036699
JH
407JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
408 missing a wire-to-host endian conversion.
409
f4630439
JH
410JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
411 close after a BDAT command line could be taken as a following command,
412 giving a synch failure. Fix by only checking for synch immediately
413 before acknowledging the chunk.
414
f988ce57
JS
415PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
416 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
417 macro. Patches provided by Josh Soref.
418
bd8fbe36
JH
419JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
420 Previously we did not; the RFC seems ambiguous and VRFY is not listed
421 by IANA as a service extension. However, John Klensin suggests that we
422 should.
423
424JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
425 the dkim code may be unix-mode line endings rather than smtp wire-format
426 CRLF, so prepend a CR to any bare LF.
fd047340 427
bd8fbe36 428JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
429 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
430
bd8fbe36
JH
431JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
432 the first were themselves being wrongly included in the feed into dkim
433 processing; with most chunk sizes in use this resulted in an incorrect
434 body hash calculated value.
435
eea19017
JH
436JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
437 DKIM signature block, for verification. Although advised against by
438 standards it is specifically not ruled illegal.
439
44e6651b
JH
440JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
441
442JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
443 missing a body hash (the bh= tag).
444
445JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
446 It seems that HAProxy sends the Proxy Protocol information in clear and
447 only then does a TLS startup, so do the same.
448
449JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
450 TCP connections (such as for Spamd) unless the daemon successfully set
451 Fast Open mode on its listening sockets. This fixes breakage seen on
452 too-old kernels or those not configured for Fast Open, at the cost of
453 requiring both directions being enabled for TFO, and TFO never being used
454 by non-daemon-related Exim processes.
455
456JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
457 endings, at least on the first header line. Try to canonify any that get
458 past that check, despite the cost.
459
b6040544
JH
460JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
461 now limited to an arbitrary five deep, while parsing addresses with the
462 strip_excess_angle_brackets option enabled.
463
f700ea4d
PP
464PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
465 instead leave the unprompted TLS handshake in socket buffer for the
466 TLS library to consume.
467
da88acae
PP
468PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
469
f6ef9370
PP
470PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
471
90341c71
JH
472JH/16 Drop variables when they go out of scope. Memory management drops a whole
473 region in one operation, for speed, and this leaves assigned pointers
474 dangling. Add checks run only under the testsuite which checks all
475 variables at a store-reset and panics on a dangling pointer; add code
476 explicitly nulling out all the variables discovered. Fixes one known
477 bug: a transport crash, where a dangling pointer for $sending_ip_address
478 originally assigned in a verify callout, is re-used.
479
1ec2ab36
PP
480PP/06 Drop '.' from @INC in various Perl scripts.
481
482PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
483
484PP/08 Reduce a number of compilation warnings under clang; building with
485 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
486 should be warning-free.
487
8b2b9480
PP
488JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
489
490HS/01 Fix portability problems introduced by PP/08 for platforms where
491 realloc(NULL) is not equivalent to malloc() [SunOS et al].
492
d953610f
HSHR
493HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
494 chunk. This allows us to accept broken chunked messages. We need a more
495 general solution here.
496
7dc5f827
PP
497PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
498 already-broken messages in the queue.
499
4bb432cb
PP
500JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
501
3b1a84c8
PP
502JH/19 Fix reference counting bug in routing-generated-address tracking.
503
902fbd69 504
8d042305
JH
505Exim version 4.88
506-----------------
4c57a40e 507
9094b84b
JH
508JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
509 supports it and a size is available (ie. the sending peer gave us one).
8d042305 510
03d5892b
JH
511JH/02 The obsolete acl condition "demime" is removed (finally, after ten
512 years of being deprecated). The replacements are the ACLs
513 acl_smtp_mime and acl_not_smtp_mime.
514
4b0fe319
JH
515JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
516 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
517 or even an in-clear connection were permitted. Now, if the host lookup
518 was dnssec and dane was requested then the host is only used if the
519 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
520 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
521 if one fails this test.
522 This means that a poorly-configured remote DNS will make it incommunicado;
523 but it protects against a DNS-interception attack on it.
524
789f8a4f
JH
525JH/04 Bug 1810: make continued-use of an open smtp transport connection
526 non-noisy when a race steals the message being considered.
527
23bb6982 528JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 529 self-signed certificate for inbound TLS connections.
23bb6982 530
0bd1b1ed 531JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 532 in rewrites and routers.
0bd1b1ed 533
20b9a2dc
JH
534JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
535 and logged a warning sing 4.83; now they are a configuration file error.
536
05392bbc
JH
537JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
538 (lacking @domain). Apply the same qualification processing as RCPT.
539
1a6230a3
JH
540JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
541
cfab9d68
JH
542JH/10 Support ${sha256:} applied to a string (as well as the previous
543 certificate).
544
98c82a3d
JH
545JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
546 a cutthrough deliver is pending, as we always want to make a connection.
547 This also avoids re-routing the message when later placing the cutthrough
548 connection after a verify cache hit.
549 Do not update it with the verify result either.
550
551JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
552 when routing results in more than one destination address.
553
ae8386f0
JH
554JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
555 signing (which inhibits the cutthrough capability). Previously only
556 the presence of an option was tested; now an expansion evaluating as
557 empty is permissible (obviously it should depend only on data available
558 when the cutthrough connection is made).
559
0d9fa8c0
JH
560JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
561 the relevant preceding SMTP command did not note the pipelining mode.
562
3581f321
JH
563JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
564 Previously they were not counted.
565
ef3a1a30
JH
566JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
567 as one having no matching records. Previously we deferred the message
568 that needed the lookup.
569
4c04137d 570JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
571 distinguished as "(=".
572
1435d4b2
JH
573JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
574 for missing MX records. Previously it only worked for missing A records.
575
eea0defe
JB
576JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
577
578JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
579 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 580
4c04137d 581JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
582 even for a "none" policy. Patch from Tony Meyer.
583
1c788856
JH
584JH/22 Fix continued use of a connection for further deliveries. If a port was
585 specified by a router, it must also match for the delivery to be
586 compatible.
587
e3b1f624
JH
588JH/23 Bug 1874: fix continued use of a connection for further deliveries.
589 When one of the recipients of a message was unsuitable for the connection
590 (has no matching addresses), we lost track of needing to mark it
591 deferred. As a result mail would be lost.
592
a57ce043
JH
593JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
594
f59aaaaa 595JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
596 takes up less space and should be simpler to maintain. Merge the ACL
597 condition decode tables also, with similar effect.
d7bed771 598
d1f9fb42
JH
599JH/26 Fix problem with one_time used on a redirect router which returned the
600 parent address unchanged. A retry would see the parent address marked as
601 delivered, so not attempt the (identical) child. As a result mail would
602 be lost.
603
92b0827a
JH
604JH/27 Fix a possible security hole, wherein a process operating with the Exim
605 UID can gain a root shell. Credit to http://www.halfdog.net/ for
606 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
607 itself :(
608
ddf1b11a
JH
609JH/28 Enable {spool,log} filesystem space and inode checks as default.
610 Main config options check_{log,spool}_{inodes,space} are now
611 100 inodes, 10MB unless set otherwise in the configuration.
612
3cc3f762
JH
613JH/29 Fix the connection_reject log selector to apply to the connect ACL.
614 Previously it only applied to the main-section connection policy
615 options.
616
ae5afa61
JH
617JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
618
317e40ac
PP
619PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
620 by me. Added RFC7919 DH primes as an alternative.
621
8b0fb68e
PP
622PP/02 Unbreak build via pkg-config with new hash support when crypto headers
623 are not in the system include path.
624
ad7fc6eb 625JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 626 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
627 Exim did stdio operations after fclose. This was exposed by a recent
628 change which nulled out the file handle after the fclose.
ad7fc6eb 629
ee5b1e28
JH
630JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
631 signed directly by the cert-signing cert, rather than an intermediate
632 OCSP-signing cert. This is the model used by LetsEncrypt.
633
5ddc9771
JH
634JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
635
8d73599f
JH
636HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
637 an incoming connection.
638
446415f5
HSHR
639HS/02 Bug 1802: Do not half-close the connection after sending a request
640 to rspamd.
641
8e53a4fc
HSHR
642HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
643 fallback to "prime256v1".
8d042305 644
87cb4a16 645JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 646 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
647
648
0d9b78be
JH
649Exim version 4.87
650-----------------
4c57a40e 651
82d14d6a
JH
652JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
653 and 3.4.4 - once the server is enabled to respond to an OCSP request
654 it does even when not requested, resulting in a stapling non-aware
655 client dropping the TLS connection.
0d9b78be 656
6c6d6e48
TF
657TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
658 support variable-length bit vectors. No functional change.
659
ac881e27
TF
660TF/02 Improve the consistency of logging incoming and outgoing interfaces.
661 The I= interface field on outgoing lines is now after the H= remote
662 host field, same as incoming lines. There is a separate
663 outgoing_interface log selector which allows you to disable the
664 outgoing I= field.
665
c8899c20
JH
666JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
667 If not running log_selector +smtp_connection the mainlog would be held
668 open indefinitely after a "too many connections" event, including to a
669 deleted file after a log rotate. Leave the per net connection logging
670 leaving it open for efficiency as that will be quickly detected by the
671 check on the next write.
672
f1b81d81
HSHR
673HS/01 Bug 1671: Fix post transport crash.
674 Processing the wait-<transport> messages could crash the delivery
675 process if the message IDs didn't exist for some reason. When
676 using 'split_spool_directory=yes' the construction of the spool
677 file name failed already, exposing the same netto behaviour.
678
f38917cc
JH
679JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
680 mime_regex ACL conditions.
681
895fbaf2
JH
682JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
683 to DSN fail messages (bounces): remote IP, remote greeting, remote response
684 to HELO, local diagnostic string.
685
805bb5c3
JH
686JH/05 Downgrade message for a TLS-certificate-based authentication fail from
687 log line to debug. Even when configured with a tls authenticator many
688 client connections are expected to not authenticate in this way, so
689 an authenticate fail is not an error.
690
56c2a7be
HSHR
691HS/02 Add the Exim version string to the process info. This way exiwhat
692 gives some more detail about the running daemon.
693
4c04137d 694JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
695 matter for fast-change records such as DNSBLs.
696
6f6dedcc
JH
697JH/07 Bug 1678: Always record an interface option value, if set, as part of a
698 retry record, even if constant. There may be multiple transports with
699 different interface settings and the retry behaviour needs to be kept
700 distinct.
701
0f557e90
JH
702JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
703
704JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
705
ec0eb1a3
JH
706JH/10 Bug 840: fix log_defer_output option of pipe transport
707
41e93589
JH
708JH/11 Bug 830: use same host for all RCPTS of a message, even under
709 hosts_randomize. This matters a lot when combined with mua_wrapper.
710
98b98887 711JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
712 ${quote_pgsql:<string>} operator.
713
98b98887
JH
714JH/13 Bug 1708: avoid misaligned access in cached lookup.
715
858e91c2
JH
716JH/14 Change header file name for freeradius-client. Relevant if compiling
717 with Radius support; from the Gentoo tree and checked under Fedora.
718
719JH/15 Bug 1712: Introduce $prdr_requested flag variable
720
6ff55e50
JH
721JH/16 Bug 1714: Permit an empty string as expansion result for transport
722 option transport_filter, meaning no filtering.
723
3b957582
JB
724JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
725
23f3dc67
JH
726JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
727 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 728 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
729 If a server certificate is not supplied (via tls_certificate) an error is
730 logged, and clients will find TLS connections fail on startup. Presumably
731 they will retry in-clear.
732 Packagers of Exim are strongly encouraged to create a server certificate
733 at installation time.
734
240c288f
JH
735HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
736 with the $config_file variable.
737
5ef5dd52
JB
738JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
739 in transport context, after the attempt, and per-recipient. The latter type
740 is per host attempted. The event data is the error message, and the errno
741 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 742 and the trailing two digits of the smtp 4xx response.
5ef5dd52 743
e161710d
GF
744GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
745 to write to mainlog (or rejectlog, paniclog) in the window between file
746 creation and permissions/ownership being changed. Particularly affects
747 installations where exicyclog is run as root, rather than exim user;
748 result is that the running daemon panics and dies.
749
a159f203
JH
750JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
751
7f06582c
JH
752JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
753 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
754 "pri" and "weight". Note that the previous implicit priority given by the
755 list order is no longer honoured.
756
4c04137d 757JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
758 for DKIM processing.
759
f0989ec0
JH
760JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
761 by defining SUPPORT_SOCKS.
74f150bf 762
cee5f132
JH
763JH/26 Move PROXY support from Experimental to mainline, enabled for a build
764 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
765 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
766 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 767
8c5d388a
JH
768JH/27 Move Internationalisation support from Experimental to mainline, enabled
769 for a build by defining SUPPORT_I18N
770
2d8d625b
JH
771JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
772 of the query string, and make ${quote_redis:} do that quoting.
773
0cbf2b82
JH
774JH/29 Move Events support from Experimental to mainline, enabled by default
775 and removable for a build by defining DISABLE_EVENT.
776
f2f2c91b
JH
777JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
778
ce325893
JH
779JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
780 cached by the daemon.
781
de78e2d5
JH
782JH/32 Move Redis support from Experimental to mainline, enabled for a build
783 by defining LOOKUP_REDIS. The libhiredis library is required.
784
379ba7d0
JH
785JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
786 keys are given for lookup.
787
f444c2c7
JH
788JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
789 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
790 only supported when built with TLS support. The PolarSSL SHA routines
791 are still used when the TLS library is too old for convenient support.
f444c2c7 792
a57b6200
JH
793JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
794 openssl_options), for security. OpenSSL forces this from version 1.1.0
795 server-side so match that on older versions.
796
07c73177 797JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 798 allocation for $value could be released as the expansion processing
07c73177 799 concluded, but leaving the global pointer active for it.
fa01e4f8 800
4f6ae5c3
JH
801JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
802 and to use the domains and local_parts ACL conditions.
803
1bc460a6
JH
804JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
805 incorrectly not doubled on cutthrough transmission, hence seen as a
806 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 807 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
808 via the normal store-and-forward channel. This could result in duplicates
809 received - but deduplicating mailstores were liable to retain only the
810 initial truncated version.
811
ab9152ff 812JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 813
67e87fcf
JH
814JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
815
ab9152ff
JH
816JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
817 we're in there, support oversigning also; bug 1309.
818
af483912
JH
819JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
820
bc3c7bb7 821HS/04 Add support for keep_environment and add_environment options.
df3def24 822
13559da6
JH
823JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
824 either intentional arithmetic overflow during PRNG, or testing config-
825 induced overflows.
826
59eaad2b
JH
827JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
828 delivery resulted in actual delivery. Cancel cutthrough before DATA
829 stage.
830
f9334a28
JH
831JH/45 Fix cutthrough, when connection not opened by verify and target hard-
832 rejects a recipient: pass the reject to the originator.
833
dc8091e7
JH
834JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
835 Many were false-positives and ignorable, but it's worth fixing the
836 former class.
837
dfe7d917
JH
838JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
839 for the new environment-manipulation done at startup. Move the routines
840 from being local to tls.c to being global via the os.c file.
841
93cc2d6e
JH
842JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
843 an extract embedded as result-arg for a map, the first arg for extract
844 is unavailable so we cannot tell if this is a numbered or keyed
845 extraction. Accept either.
846
13559da6 847
9c695f6d
JH
848Exim version 4.86
849-----------------
4c57a40e 850
9c695f6d
JH
851JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
852 expanded.
853
506900af
JH
854JH/02 The smtp transport option "multi_domain" is now expanded.
855
ad07e9ad
JH
856JH/03 The smtp transport now requests PRDR by default, if the server offers
857 it.
858
01a4a5c5 859JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 860 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
861 can be used to disable this per-host. The build option
862 EXPERIMENTAL_CERTNAMES is withdrawn.
863
cb1d7830 864JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 865 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
866 For GnuTLS, only version 3.0.20 or later.
867
610ff438 868JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
869 (but not required) by default. The verification status is now logged by
870 default, for both outbound TLS and client-certificate supplying inbound
871 TLS connections
610ff438 872
f926e272
JH
873JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
874 sites use this now.
875
50dc7409
JH
876JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
877 Status Notification (bounce) messages are now MIME format per RFC 3464.
878 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
879 under the control of the dsn_advertise_hosts option, and routers may
880 have a dsn_lasthop option.
881
0f0c8159
JH
882JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
883 default, modifiable by a malware= option. The list separator for
23763898 884 the options can now be changed in the usual way. Bug 68.
4e71661f 885
1ad6489e
JH
886JH/10 The smtp_receive_timeout main option is now expanded before use.
887
aeaf5db3
JH
888JH/11 The incoming_interface log option now also enables logging of the
889 local interface on delivery outgoing connections.
890
5032d1cf
JH
891JH/12 The cutthrough-routing facility now supports multi-recipient mails,
892 if the interface and destination host and port all match.
893
7e8360e6
JH
894JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
895 /defer_ok option.
896
c5f280e2
AL
897JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
898 Patch from Andrew Lewis.
899
fd4d8871 900JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 901 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
902 modifiers per server. Patch originally by <rommer@active.by>.
903
904JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
905 and remote servers. Remote servers can be IPv6 addresses, and
906 specify a port-range.
fd4d8871 907
23763898
JH
908JH/17 Bug 68: The spamd_address main option now supports an optional
909 timeout value per server.
910
2ad78978
JH
911JH/18 Bug 1581: Router and transport options headers_add/remove can
912 now have the list separator specified.
913
8a512ed5 914JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 915 option values.
8a512ed5 916
82c0c8ea 917JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
918 under OpenSSL.
919
cc00f4af
JH
920JH/21 Support for the A6 type of dns record is withdrawn.
921
82c0c8ea
JH
922JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
923 rather than the verbs used.
924
b980ed83
JH
925JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
926 from 255 to 1024 chars.
927
6c9ed72e
JH
928JH/24 Verification callouts now attempt to use TLS by default.
929
cfab9d68 930HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 931 are generic router options now. The defaults didn't change.
50dc7409 932
f846c8f5
JH
933JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
934 Original patch from Alexander Shikoff, worked over by JH.
935
fd4c285c
HSHR
936HS/02 Bug 1575: exigrep falls back to autodetection of compressed
937 files if ZCAT_COMMAND is not executable.
938
4c04137d 939JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 940
d2a2c69b
JH
941JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
942
8241d8dd
JH
943JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
944 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 945 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
946 (and we were inconsistent anyway for A-only vs AAAA+A).
947
1f12df4d
JH
948JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
949
1f155f8e
JH
950JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
951 when evaluating $sender_host_dnssec.
952
1705dd20
JH
953JH/31 Check the HELO verification lookup for DNSSEC, adding new
954 $sender_helo_dnssec variable.
955
038597d2
PP
956JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
957
474f71bf
JH
958JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
959
7137ca4b
JH
960JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
961
dcb1095c
JH
962JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
963 documented as working, but never had. Support all but $spam_report.
964
2f460950
JH
965JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
966 added for tls authenticator.
967
2f680c0c
HSHR
968HS/03 Add perl_taintmode main config option
969
9c695f6d 970
e449c3b0
TL
971Exim version 4.85
972-----------------
4c57a40e 973
e449c3b0
TL
974TL/01 When running the test suite, the README says that variables such as
975 no_msglog_check are global and can be placed anywhere in a specific
976 test's script, however it was observed that placement needed to be near
977 the beginning for it to behave that way. Changed the runtest perl
978 script to read through the entire script once to detect and set these
979 variables, reset to the beginning of the script, and then run through
980 the script parsing/test process like normal.
981
ac20058f
TL
982TL/02 The BSD's have an arc4random API. One of the functions to induce
983 adding randomness was arc4random_stir(), but it has been removed in
984 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
985 function when detected.
986
a9b8ec8b
JH
987JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
988 cause callback expansion.
989
6286d7c4
TL
990TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
991 syntax errors in an expansion can be treated as a string instead of
992 logging or causing an error, due to the internal use of bool_lax
993 instead of bool when processing it.
994
0f06b4f2 995JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
996 server certificates when making smtp deliveries.
997
be36e572
JH
998JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
999
ac4ef9bd
JH
1000JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1001
0eb51736
TL
1002TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1003
c713ca4b
TL
1004TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1005 Merged patch from Sebastian Wiedenroth.
e449c3b0 1006
bd21a787
WB
1007JH/05 Fix results-pipe from transport process. Several recipients, combined
1008 with certificate use, exposed issues where response data items split
1009 over buffer boundaries were not parsed properly. This eventually
1010 resulted in duplicates being sent. This issue only became common enough
4c04137d 1011 to notice due to the introduction of connection certificate information,
bd21a787
WB
1012 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1013
8bc732e8
JH
1014JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1015 size buffer was used, resulting in syntax errors when an expansion
1016 exceeded it.
1017
a7fec7a7
JH
1018JH/07 Add support for directories of certificates when compiled with a GnuTLS
1019 version 3.3.6 or later.
1020
4c04137d 1021JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1022 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1023 both become "event_action", the variables become $event_name, $event_data
aec45841 1024 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1025 routers, transports and related events. The tls:cert event is now also
1026 raised for inbound connections, if the main configuration event_action
1027 option is defined.
774ef2d7 1028
eca4debb
TL
1029TL/06 In test suite, disable OCSP for old versions of openssl which contained
1030 early OCSP support, but no stapling (appears to be less than 1.0.0).
1031
8d692470
JH
1032JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1033 server certificate names available under the smtp transport option
1034 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1035 matches.
1036
e9477a08
JH
1037JH/10 Time-related extraction expansions from certificates now use the main
1038 option "timezone" setting for output formatting, and are consistent
1039 between OpenSSL and GnuTLS compilations. Bug 1541.
1040
ad4c5ff9
JH
1041JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1042 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1043
1044JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1045 include certificate info, eximon was claiming there were spoolfile
1046 syntax errors.
1047
3394b36a 1048JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1049
1050JH/14 Log delivery-related information more consistently, using the sequence
1051 "H=<name> [<ip>]" wherever possible.
1052
3394b36a
TL
1053TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1054 are problematic for Debian distribution, omit them from the release
1055 tarball.
1056
ad4c5ff9
JH
1057JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1058
4c04137d 1059JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1060 Bug 1561.
1061
1062JH/17 Fix a null-indirection in certextract expansions when a nondefault
1063 output list separator was used.
1064
8bc732e8 1065
1f0ebb98
TL
1066Exim version 4.84
1067-----------------
09728d20
TL
1068TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1069 checkers that were complaining about end of non-void function with no
1070 return.
1f0ebb98 1071
a612424f 1072JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1073 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1074
1075JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1076
1077TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1078 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1079
1f0ebb98 1080
c0e56233
TF
1081Exim version 4.83
1082-----------------
1083
1084TF/01 Correctly close the server side of TLS when forking for delivery.
1085
1086 When a message was received over SMTP with TLS, Exim failed to clear up
1087 the incoming connection properly after forking off the child process to
1088 deliver the message. In some situations the subsequent outgoing
1089 delivery connection happened to have the same fd number as the incoming
1090 connection previously had. Exim would try to use TLS and fail, logging
1091 a "Bad file descriptor" error.
1092
7245734e
TF
1093TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1094 utilities have not been installed.
1095
fd5dad68
JH
1096JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1097 temporary space as the ACL may create new global variables.
1098
5428a946
TL
1099TL/01 LDAP support uses per connection or global context settings, depending
1100 upon the detected version of the libraries at build time.
1101
a3c86431
TL
1102TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1103 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1104 were a direct connection from the outside internet. PPv2 support was
1105 updated based on HAProxy spec change in May 2014.
a3c86431 1106
aa26e137
JH
1107JH/02 Add ${listextract {number}{list}{success}{fail}}.
1108
5a1b8443
WB
1109TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1110 Properly escape header and check for NULL return.
1111
72c9e342
PP
1112PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1113 not dns_use_dnssec.
1114
76f44207
WB
1115JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1116
770747fd
MFM
1117TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1118 characters in header names, implemented as a verify condition.
1119 Contributed by Michael Fischer v. Mollard.
1120
8ddef691 1121TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1122 results permerror and temperror. Previous values are deprecated but
1123 still accepted. In a future release, err_perm and err_temp will be
1124 completely removed, which will be a backward incompatibility if the
1125 ACL tests for either of these two old results. Patch contributed by
8ddef691 1126 user bes-internal on the mailing list.
c0e56233 1127
b9c2e32f
AR
1128JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1129
e45a1c37
JH
1130JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1131 selectors, in both main and reject logs.
1132
67d81c10
JH
1133JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1134 failed delivery.
1135
b1f8e4f8
JH
1136JH/07 Add malware type "sock" for talking to simple daemon.
1137
511a6c14 1138JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1139
1140JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1141 routers/transports under cutthrough routing.
214042d2 1142
51c7471d
JH
1143JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1144 numbers. Touch up "bool" conditional to keep the same definition.
1145
3695be34
TL
1146TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1147
1e06383a
TL
1148JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1149
76146973
JH
1150JH/12 Expand items in router/transport headers_add or headers_remove lists
1151 individually rather than the list as a whole. Bug 1452.
1152
1153 Required for reasonable handling of multiple headers_ options when
1154 they may be empty; requires that headers_remove items with embedded
1155 colons must have them doubled (or the list-separator changed).
1156
8c8b8274
TL
1157TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1158 view the policy declared in the DMARC record. Currently, $dmarc_status
1159 is a combined value of both the record presence and the result of the
1160 analysis.
b1f8e4f8 1161
35aba663
JH
1162JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1163
8c51eead 1164JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1165 dnslookup router and the smtp transport (applying to the forward
1166 lookup).
8c51eead 1167
deae092e
HS
1168TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1169 of ldap servers used for a specific lookup. Patch provided by Heiko
1170 Schlichting.
35aba663 1171
fd3b6a4a 1172JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1173 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1174
8d91c6dc
LT
1175TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1176 Patch submitted by Lars Timman.
1177
2b4a568d
JH
1178JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1179
d2af03f4
HS
1180TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1181 Requires trusted mode and valid format message id, aborts otherwise.
1182 Patch contributed by Heiko Schlichting.
1183
9d1c15ef
JH
1184JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1185 certextract with support for various fields. Bug 1358.
1186
44662487
JH
1187JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1188 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1189 hosts_request_ocsp.
1190
ed3bba5f 1191JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1192 operate on certificate variables to give certificate fingerprints
9ef9101c 1193 Also new ${sha256:cert_variable}.
44662487 1194
8ccd00b1
JH
1195JH/23 The PRDR feature is moved from being Experimental into the mainline.
1196
8ded8589
TL
1197TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1198 Christian Aistleitner.
1199
f2de3a33
JH
1200JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1201
6eb02f88
TL
1202TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1203 file. Patch from Wolfgang Breyha.
1204
00bff6f6
JH
1205JH/25 Expand the coverage of the delivery $host and $host_address to
1206 client authenticators run in verify callout. Bug 1476.
1207
071c51f7
JH
1208JH/26 Port service names are now accepted for tls_on_connect_ports, to
1209 align with daemon_smtp_ports. Bug 72.
1210
a6d4c44e
TF
1211TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1212 support and error reporting did not work properly.
1213
3ae173e7
ACK
1214TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1215 and is readable. Patch from Andrew Colin Kissa.
1216
c13d09b8
TL
1217TL/14 Enhance documentation of ${run expansion and how it parses the
1218 commandline after expansion, particularly in the case when an
1219 unquoted variable expansion results in an empty value.
1220
0df4ab80
JH
1221JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1222
66be95e0
PP
1223PP/02 Fix internal collision of T_APL on systems which support RFC3123
1224 by renaming away from it. Addresses GH issue 15, reported by
1225 Jasper Wallace.
1226
1bd0d12b
JH
1227JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1228
0de7239e
TL
1229TL/15 SECURITY: prevent double expansion in math comparison functions
1230 (can expand unsanitized data). Not remotely exploitable.
1231 CVE-2014-2972
1232
fd3b6a4a 1233
2c422e6f 1234Exim version 4.82
98a90c36
PP
1235-----------------
1236
1237PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1238
12f69989
PP
1239PP/02 Make -n do something, by making it not do something.
1240 When combined with -bP, the name of an option is not output.
1241
54c90be1
PP
1242PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1243 by GnuTLS.
1244
1f4a55da
PP
1245PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1246 $sender_host_name and config options to manage this, and basic check
1247 routines.
1248
13363eba 1249PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1250
66645890 1251PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1252 (Only plugin which currently uses this is kerberos4, which nobody should
1253 be using, but we should make it available and other future plugins might
1254 conceivably use it, even though it would break NAT; stuff *should* be
1255 using channel bindings instead).
66645890 1256
a3fb9793 1257PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1258 name; added for Sendmail compatibility; requires admin caller.
1259 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1260 just ignore it); requires trusted caller.
a3fb9793 1261 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1262 Bugzilla 1117.
a3fb9793 1263
d27f98fe 1264TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1265
6822b909
TL
1266TL/02 Add +smtp_confirmation as a default logging option.
1267
e7568d51
TL
1268TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1269 Patch by Magnus Holmgren from 2007-02-20.
1270
ae0e32ee 1271TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1272 Bugzilla 1283 - Spec typo.
97f42f10 1273 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1274
1275TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1276
e2658fff
TL
1277TL/06 Add Experimental DMARC support using libopendmarc libraries.
1278
83712b39
TL
1279TL/07 Fix an out of order global option causing a segfault. Reported to dev
1280 mailing list by by Dmitry Isaikin.
1281
976b7e9f
JH
1282JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1283
be4a1376
JH
1284JH/02 Support "G" suffix to numbers in ${if comparisons.
1285
ec4b68e5
PP
1286PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1287
d7148a07
NM
1288NM/01 Bugzilla 1197 - Spec typo
1289 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1290
585121e2 1291JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1292
2519e60d
TL
1293PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1294 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1295 function.
a5f239e4 1296
13d08c90
PP
1297PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1298 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1299
bef3ea7f
JH
1300JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1301 "acl {{name}{arg}...}", and optional args on acl condition
1302 "acl = name arg..."
a5f239e4 1303
846726c5
JH
1304JH/05 Permit multiple router/transport headers_add/remove lines.
1305
3a796370
JH
1306JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1307
ea722490 1308JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1309 Performance patch from Paul Fisher. Bugzilla 1262.
1310
b1b05573
JH
1311JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1312 Bugzilla 884.
1313
362145b5
JH
1314JH/09 Add $headers_added variable, with content from use of ACL modifier
1315 add_header (but not yet added to the message). Bugzilla 199.
1316
3c0a92dc
JH
1317JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1318 Pulled from Bugzilla 817 by Wolfgang Breyha.
1319
6d7c6175
PP
1320PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1321 CVE-2012-5671
e78e6ecf 1322 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1323
6f123593
JH
1324JH/11 Add A= logging on delivery lines, and a client_set_id option on
1325 authenticators.
1326
c8e2fc1e
JH
1327JH/12 Add optional authenticated_sender logging to A= and a log_selector
1328 for control.
1329
005ac57f
PP
1330PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1331
3f1df0e3
PP
1332PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1333 advertise SMTP AUTH mechanism to us, instead of a generic
1334 protocol violation error. Also, make Exim more robust to bad
1335 data from the Dovecot auth socket.
1336
67bd1ab3
TF
1337TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1338
1339 When a queue runner is handling a message, Exim first routes the
1340 recipient addresses, during which it prunes them based on the retry
1341 hints database. After that it attempts to deliver the message to
1342 any remaining recipients. It then updates the hints database using
1343 the retry rules.
1344
1345 So if a recipient address works intermittently, it can get repeatedly
1346 deferred at routing time. The retry hints record remains fresh so the
1347 address never reaches the final cutoff time.
1348
1349 This is a fairly common occurrence when a user is bumping up against
1350 their storage quota. Exim had some logic in its local delivery code
1351 to deal with this. However it did not apply to per-recipient defers
1352 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1353
1ddeb334
TF
1354 This change adds a proper retry rule check during routing so that the
1355 final cutoff time is checked against the message's age. We only do
1356 this check if there is an address retry record and there is not a
1357 domain retry record; this implies that previous attempts to handle
1358 the address had the retry_use_local_parts option turned on. We use
1359 this as an approximation for the destination being like a local
1360 delivery, as in LMTP.
67bd1ab3
TF
1361
1362 I suspect this new check makes the old local delivery cutoff check
1363 redundant, but I have not verified this so I left the code in place.
1364
326cdc37
TF
1365TF/02 Correct gecos expansion when From: is a prefix of the username.
1366
1367 Test 0254 submits a message to Exim with the header
1368
1369 Resent-From: f
1370
1371 When I ran the test suite under the user fanf2, Exim expanded
1372 the header to contain my full name, whereas it should have added
1373 a Resent-Sender: header. It erroneously treats any prefix of the
1374 username as equal to the username.
1375
1376 This change corrects that bug.
1377
f62514b3
GF
1378GF/01 DCC debug and logging tidyup
1379 Error conditions log to paniclog rather than rejectlog.
1380 Debug lines prefixed by "DCC: " to remove any ambiguity.
1381
eb505532
TF
1382TF/03 Avoid unnecessary rebuilds of lookup-related code.
1383
14c7b357
PP
1384PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1385 Bug spotted by Jeremy Harris; was flawed since initial commit.
1386 Would have resulted in OCSP responses post-SNI triggering an Exim
1387 NULL dereference and crash.
1388
94eaf700
PP
1389JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1390
6f5a440a
PP
1391PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1392 Bug detection, analysis and fix by Samuel Thibault.
1393 Bugzilla 1331, Debian bug #698092.
1394
514ee161
SC
1395SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1396
fd98a5c6
JH
1397JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1398 Server implementation by Todd Lyons, client by JH.
1399 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1400 config variable "prdr_enable" controls whether the server
1401 advertises the facility. If the client requests PRDR a new
1402 acl_data_smtp_prdr ACL is called once for each recipient, after
1403 the body content is received and before the acl_smtp_data ACL.
4c04137d 1404 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1405 on the smtp transport, and the server advertisement.
1406 Default client logging of deliveries and rejections involving
1407 PRDR are flagged with the string "PRDR".
1408
035c7f1e
PP
1409PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1410 fclose(). Diagnosis by Todd Lyons.
1411
ff284120
PP
1412PP/17 Update configure.default to handle IPv6 localhost better.
1413 Patch by Alain Williams (plus minor tweaks).
1414 Bugzilla 880.
1415
26e72755
PP
1416PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1417 This is now consistent with GnuTLS, and is now documented: the
1418 previous undocumented portable approach to treating the option as
1419 unset was to force an expansion failure. That still works, and
1420 an empty string is now equivalent.
1421
0fbd9bff
PP
1422PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1423 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1424 not performing validation itself.
1425
700d22f3
PP
1426PP/20 Added force_command boolean option to pipe transport.
1427 Patch from Nick Koston, of cPanel Inc.
1428
fcc8e047
JH
1429JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1430 Bugzilla 321, 823.
1431
4c04137d 1432TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1433
8c020188
PP
1434PP/21 Fix eximon continuous updating with timestamped log-files.
1435 Broken in a format-string cleanup in 4.80, missed when I repaired the
1436 other false fix of the same issue.
1437 Report and fix from Heiko Schlichting.
1438 Bugzilla 1363.
1439
d13cdd30
PP
1440PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1441 Report from Prashanth Katuri.
1442
e2fbf4a2
PP
1443PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1444 It's SecureTransport, so affects any MacOS clients which use the
1445 system-integrated TLS libraries, including email clients.
1446
f4c1088b
PP
1447PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1448 using a MIME ACL for non-SMTP local injection.
1449 Report and assistance in diagnosis by Warren Baker.
1450
c5c2182f
PP
1451TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1452
73431ca9
JH
1453JH/16 Fix comparisons for 64b. Bugzilla 1385.
1454
2d07a215
TL
1455TL/09 Add expansion variable $authenticated_fail_id to keep track of
1456 last id that failed so it may be referenced in subsequent ACL's.
1457
a30a8861
TL
1458TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1459 Alexander Miroch.
1460
33382dd9
TL
1461TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1462 ldap library initialization, allowing self-signed CA's to be
1463 used. Also properly sets require_cert option later in code by
1464 using NULL (global ldap config) instead of ldap handle (per
1465 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1466
046172e6
TL
1467TL/12 Enhanced documentation in the ratelimit.pl script provided in
1468 the src/util/ subdirectory.
1469
581d7bee 1470TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1471 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1472 EXPERIMENTAL_TPDA.
1473
1474TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1475 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1476 redis_servers = needs to be configured which will be used by the redis
1477 lookup. Patch from Warren Baker, of The Packet Hub.
1478
237b2cf2
TL
1479TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1480
9fc5a352
TL
1481TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1482 hostname or reverse DNS when processing a host list. Used suggestions
1483 from multiple comments on this bug.
1a7b746d 1484
b10e4ec2
TL
1485TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1486
e2cebd74
TL
1487TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1488 Missed a few lines, added it to make the runtest require no keyboard
1489 interaction.
1490
1491TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1492 contains upper case chars. Make router use caseful_local_part.
1493
2519e60d
TL
1494TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1495 support when GnuTLS has been built with p11-kit.
1496
e78e6ecf 1497
4263f395
PP
1498Exim version 4.80.1
1499-------------------
1500
1501PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1502 CVE-2012-5671
2c422e6f 1503 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1504
ea722490 1505
b1770b6e 1506Exim version 4.80
0599f9cf
PP
1507-----------------
1508
1509PP/01 Handle short writes when writing local log-files.
1510 In practice, only affects FreeBSD (8 onwards).
1511 Bugzilla 1053, with thanks to Dmitry Isaikin.
1512
23c7e742
NM
1513NM/01 Bugzilla 949 - Documentation tweak
1514
b322aac8
NM
1515NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1516 improved.
1517
4a891427
NM
1518NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1519
c1e794ba 1520PP/02 Implemented gsasl authenticator.
b322aac8 1521
97753960
PP
1522PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1523
1524PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1525 `pkg-config foo` for cflags/libs.
1526
df6303fa
PP
1527PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1528 with rest of GSASL and with heimdal_gssapi.
1529
7e6a8985
PP
1530PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1531 `pkg-config foo` for cflags/libs for the TLS implementation.
1532
f1e05cc7 1533PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1534 properties get this fed in as external SSF. A number of robustness
1535 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1536
4c287009
PP
1537PP/08 cyrus_sasl server now expands the server_realm option.
1538
b98bb9ac
PP
1539PP/09 Bugzilla 1214 - Log authentication information in reject log.
1540 Patch by Jeremy Harris.
1541
4a6a987a
PP
1542PP/10 Added dbmjz lookup type.
1543
c45dd180 1544PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1545
7db8d074
PP
1546PP/12 MAIL args handles TAB as well as SP, for better interop with
1547 non-compliant senders.
1548 Analysis and variant patch by Todd Lyons.
1549
eae0036b 1550NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1551 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1552 Patch from Dirk Mueller <dmueller@suse.com>
1553
dec5017e
PP
1554PP/13 tls_peerdn now print-escaped for spool files.
1555 Observed some $tls_peerdn in wild which contained \n, which resulted
1556 in spool file corruption.
1557
c80c5570
PP
1558PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1559 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1560 or write after TLS renegotiation, which otherwise led to messages
1561 "Got SSL error 2".
1562
076b11e2
PP
1563TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1564 as a tracking header (ie: a signed header comes before the signature).
1565 Patch from Wolfgang Breyha.
1566
5407bfff
JH
1567JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1568 comma-sep list; embedded commas doubled.
1569
9e45c72b
PP
1570JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1571
e74376d8
PP
1572PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1573 diagnostics.
1574 Report and patch from Dmitry Banschikov.
1575
4c04137d 1576PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1577 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1578 failures. We appear to now support TLS1.1+ with Exim.
1579
7be682ca
PP
1580PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1581 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1582 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1583 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1584
ef840681
PP
1585PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1586 NULL dereference. Report and patch from Alun Jones.
1587
5bfb4cdf
PP
1588PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1589 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1590 Not seeing resolver debug output on NetBSD, but suspect this is a
1591 resolver implementation change.
1592
c6e95d22
PP
1593PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1594 Left warnings. Added "eximon gdb" invocation mode.
1595
9cbad13b
PP
1596PP/21 Defaulting "accept_8bitmime" to true, not false.
1597
9ee44efb
PP
1598PP/22 Added -bw for inetd wait mode support.
1599
6a6084f8
PP
1600PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1601 locate the relevant includes and libraries. Made this the default.
1602
12dd53c7
PP
1603PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1604 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1605
9e45c72b 1606JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1607 This may cause build issues on older platforms.
1608
17c76198
PP
1609PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1610 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1611 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1612 Added SNI support via GnuTLS too.
af3498d6 1613 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1614
53947857 1615PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1616
eae0036b 1617PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1618 Applied second patch from Janne, implementing suggestion to default
1619 multiple-strings-in-record handling to match SPF spec.
eae0036b 1620
9e45c72b 1621JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1622
7390e768
PP
1623PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1624 read-only, out of scope).
1625 Patch from Wolfgang Breyha, report from Stuart Northfield.
1626
08488c86
PP
1627PP/29 Fix three issues highlighted by clang analyser static analysis.
1628 Only crash-plausible issue would require the Cambridge-specific
1629 iplookup router and a misconfiguration.
1630 Report from Marcin Mirosław.
1631
6475bd82
PP
1632PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1633
81f91683
PP
1634PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1635 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1636 As part of this, removing so much warning spew let me fix some minor
1637 real issues in debug logging.
1638
5779e6aa
PP
1639PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1640 assignment on my part. Fixed.
1641
3375e053
PP
1642PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1643 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1644 Janne Snabb (who went above and beyond: thank you).
1645
1646PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1647 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1648 relatively easy to get wrong. Should also expose TLS library linkage
1649 problems.
3375e053 1650
9d26b8c0
PP
1651PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1652 64-bit ${eval} (JH/03).
1653
57eb9e91 1654PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1655 GNU libc to support some of the 64-bit stuff, should not lead to
1656 conflicts. Defined before os.h is pulled in, so if a given platform
1657 needs to override this, it can.
1658
16880d1a
PP
1659PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1660 protection layer was required, which is not implemented.
1661 Bugzilla 1254, patch from Wolfgang Breyha.
1662
a799883d
PP
1663PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1664 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1665 tls_dhparam take prime identifiers. Also unbreak combination of
1666 OpenSSL+DH_params+TLSSNI.
1667
3ecab157 1668PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1669
0599f9cf 1670
867fcbf5
PP
1671Exim version 4.77
1672-----------------
1673
1674PP/01 Solaris build fix for Oracle's LDAP libraries.
1675 Bugzilla 1109, patch from Stephen Usher.
1676
f1a29782
TF
1677TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1678
ab42bd23
TK
1679TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1680 whitespace trailer
867fcbf5 1681
0ca0cf52
TF
1682TF/02 Fix a couple more cases where we did not log the error message
1683 when unlink() failed. See also change 4.74-TF/03.
1684
921b12ca
TF
1685TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1686 lock up or crash if it happened to be inside a call to libc when it
1687 got a SIGUSR1 from exiwhat.
1688
1689 The SIGUSR1 handler appends the current process status to the process
1690 log which is later printed by exiwhat. It used to use the general
1691 purpose logging code to do this, but several functions it calls are
1692 not safe for signals.
1693
1694 The new output code in the SIGUSR1 handler is specific to the process
1695 log, and simple enough that it's easy to inspect for signal safety.
1696 Removing some special cases also simplifies the general logging code.
1697 Removing the spurious timestamps from the process log simplifies
1698 exiwhat.
1699
c99ce5c9
TF
1700TF/04 Improved ratelimit ACL condition.
1701
1702 The /noupdate option has been deprecated in favour of /readonly which
1703 has clearer semantics. The /leaky, /strict, and /readonly update modes
1704 are mutually exclusive. The update mode is no longer included in the
1705 database key; it just determines when the database is updated. (This
4c04137d 1706 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1707
1708 Exim now checks that the per_* options are used with an update mode that
1709 makes sense for the current ACL. For example, when Exim is processing a
1710 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1711 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1712 must specify per_mail/readonly. If you omit the update mode it defaults to
1713 /leaky where that makes sense (as before) or /readonly where required.
1714
1715 The /noupdate option is now undocumented but still supported for
1716 backwards compatibility. It is equivalent to /readonly except that in
1717 ACLs where /readonly is required you may specify /leaky/noupdate or
1718 /strict/noupdate which are treated the same as /readonly.
1719
1720 A useful new feature is the /count= option. This is a generalization
1721 of the per_byte option, so that you can measure the throughput of other
1722 aggregate values. For example, the per_byte option is now equivalent
1723 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1724
1725 The per_rcpt option has been generalized using the /count= mechanism
1726 (though it's more complicated than the per_byte equivalence). When it is
1727 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1728 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1729 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1730 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1731 Note that using per_rcpt with a non-readonly update mode in more than
1732 one ACL will cause the recipients to be double-counted. (The per_mail
1733 and per_byte options don't have this problem.)
1734
1735 The handling of very low rates has changed slightly. If the computed rate
1736 is less than the event's count (usually one) then this event is the first
1737 after a long gap. In this case the rate is set to the same as this event's
1738 count, so that the first message of a spam run is counted properly.
1739
1740 The major new feature is a mechanism for counting the rate of unique
1741 events. The new per_addr option counts the number of different
1742 recipients that someone has sent messages to in the last time period. It
1743 behaves like per_rcpt if all the recipient addresses are different, but
1744 duplicate recipient addresses do not increase the measured rate. Like
1745 the /count= option this is a general mechanism, so the per_addr option
1746 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1747 example, measure the rate that a client uses different sender addresses
1748 with the options per_mail/unique=$sender_address. There are further
1749 details in the main documentation.
1750
3634fc25
TF
1751TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1752
792e8a19
TF
1753TF/06 Removed a few PCRE remnants.
1754
5901f0ab
TF
1755TF/07 Automatically extract Exim's version number from tags in the git
1756 repository when doing development or release builds.
1757
7f2a2a43
PP
1758PP/02 Raise smtp_cmd_buffer_size to 16kB.
1759 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1760
061b7ebd
PP
1761PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1762 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1763 Bugzilla 97.
1764
e12f8c32
PP
1765PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1766
9e949f00 1767PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1768 Bugzilla 1078. Patch from John Horne.
1769
1770PP/06 Stop make process more reliably on build failure.
1771 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1772
555ae6af 1773PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1774 Bugzilla 1089. Patch from Heiko Schlittermann.
1775
1776PP/08 Handle ${run} returning more data than OS pipe buffer size.
1777 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1778
6f7fe114
PP
1779PP/09 Handle IPv6 addresses with SPF.
1780 Bugzilla 860. Patch from Wolfgang Breyha.
1781
c566dd90
PP
1782PP/10 GnuTLS: support TLS 1.2 & 1.1.
1783 Bugzilla 1156.
89f897c3
PP
1784 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1785 Bugzilla 1095.
c566dd90 1786
d6cc7c78 1787PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1788 New compile-time build option, EXPAND_LISTMATCH_RHS.
1789 New expansion conditions, "inlist", "inlisti".
1790
0d0e4455
PP
1791PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1792
3399bb60 1793PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1794
1795PP/14 fix log_write() format string regression from TF/03.
1796 Bugzilla 1152. Patch from Dmitry Isaikin.
1797
0ca0cf52 1798
10906672
PP
1799Exim version 4.76
1800-----------------
1801
1802PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1803
754a0503
PP
1804PP/02 Harmonised TLS library version reporting; only show if debugging.
1805 Layout now matches that introduced for other libraries in 4.74 PP/03.
1806
c0c7b2da
PP
1807PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1808
e97d1f08
PP
1809PP/04 New "dns_use_edns0" global option.
1810
084c1d8c
PP
1811PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1812 Bugzilla 1098.
1813
4e7ee012
PP
1814PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1815 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1816
c8d52a00
PP
1817TK/01 Updated PolarSSL code to 0.14.2.
1818 Bugzilla 1097. Patch from Andreas Metzler.
1819
54e7ce4a
PP
1820PP/07 Catch divide-by-zero in ${eval:...}.
1821 Fixes bugzilla 1102.
1822
5ee6f336
PP
1823PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1824 Bugzilla 1104.
1825
c8d52a00 1826TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1827 format-string attack -- SECURITY: remote arbitrary code execution.
1828
1829TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1830 time unintentionally subject to list matching rules, letting the header
1831 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1832 arbitrary string expansion). This allowed for information disclosure.
1833
1834PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1835 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1836
10906672 1837
aa097c4c
NM
1838Exim version 4.75
1839-----------------
1840
4c04137d 1841NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1842 Bugzilla 1073
1843
7f3d9eff
TF
1844TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1845 This fixes portability to compilers other than gcc, notably
1846 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1847
159f52d2
TF
1848TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1849 makefiles for portability to HP-UX and POSIX correctness.
1850
0cc9542a
PP
1851PP/01 Permit LOOKUP_foo enabling on the make command-line.
1852 Also via indented variable definition in the Makefile.
1853 (Debugging by Oliver Heesakkers).
1854
f7274286
PP
1855PP/02 Restore caching of spamd results with expanded spamd_address.
1856 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1857
7b797365
PP
1858PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1859 Improves build reliability. Fix from: Frank Elsner
1860
caacae52
NM
1861NM/02 Fix wide character breakage in the rfc2047 coding
1862 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1863
09dcaba9
NM
1864NM/03 Allow underscore in dnslist lookups
1865 Fixes bug 1026. Patch from Graeme Fowler
1866
bc19a55b
PP
1867PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1868 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1869
bd4c9759
NM
1870NM/04 Fixed exiqgrep to cope with mailq missing size issue
1871 Fixes bug 943.
1872
b72aab72
PP
1873PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1874 is logged, to avoid truncation. Patch from John Horne.
1875
2fe76745
PP
1876PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1877 Patch from Jakob Hirsch.
1878
76aa570c
PP
1879PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1880 SQL string expansion failure details.
1881 Patch from Andrey Oktyabrski.
1882
f1e5fef5
PP
1883PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1884 Patch from Simon Arlott.
1885
4d805ee9
PP
1886PP/09 New lookups functionality failed to compile on old gcc which rejects
1887 extern declarations in function scope.
1888 Patch from Oliver Fleischmann
1889
cd59ab18
PP
1890PP/10 Use sig_atomic_t for flags set from signal handlers.
1891 Check getgroups() return and improve debugging.
1892 Fixed developed for diagnosis in bug 927 (which turned out to be
1893 a kernel bug).
1894
332f5cf3
PP
1895PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1896 Patch from Mark Zealey.
1897
29cfeb94
PP
1898PP/12 Bugzilla 1056: Improved spamd server selection.
1899 Patch from Mark Zealey.
1900
660242ad
PP
1901PP/13 Bugzilla 1086: Deal with maildir quota file races.
1902 Based on patch from Heiko Schlittermann.
1903
bc4bc4c5
PP
1904PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1905 Patch from Uwe Doering, sign-off by Michael Haardt.
1906
2e64baa9
NM
1907NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1908 variable declaration deep within a block. Bug and patch from
1909 Dennis Davis.
1910
4c04137d 1911PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1912
6bac1a9a
PP
1913PP/16 Make DISABLE_DKIM build knob functional.
1914
552193f0
NM
1915NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1916 Patch by Simon Arlott
baeee2c1 1917
1b587e48
TF
1918TF/03 Fix valgrind.h portability to C89 compilers that do not support
1919 variable argument macros. Our copy now differs from upstream.
1920
aa097c4c 1921
8c07b69f
TF
1922Exim version 4.74
1923-----------------
1924
1925TF/01 Failure to get a lock on a hints database can have serious
1926 consequences so log it to the panic log.
1927
c0ea85ab
TF
1928TF/02 Log LMTP confirmation messages in the same way as SMTP,
1929 controlled using the smtp_confirmation log selector.
1930
0761d44e
TF
1931TF/03 Include the error message when we fail to unlink a spool file.
1932
0a349494
PP
1933DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1934 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1935 for maintaining out-of-tree patches for some time.
1936
1937PP/01 Bugzilla 139: Documentation and portability issues.
1938 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1939 Handle per-OS dynamic-module compilation flags.
1940
fea24b2e
PP
1941PP/02 Let /dev/null have normal permissions.
1942 The 4.73 fixes were a little too stringent and complained about the
1943 permissions on /dev/null. Exempt it from some checks.
1944 Reported by Andreas M. Kirchwitz.
1945
6545de78
PP
1946PP/03 Report version information for many libraries, including
1947 Exim version information for dynamically loaded libraries. Created
1948 version.h, now support a version extension string for distributors
1949 who patch heavily. Dynamic module ABI change.
1950
1670ef10
PP
1951PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1952 privilege escalation vulnerability whereby the Exim run-time user
1953 can cause root to append content of the attacker's choosing to
1954 arbitrary files.
1955
c0886197
PP
1956PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1957 (Wolfgang Breyha)
1958
b7487bce
PP
1959PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1960 If dropping privileges for untrusted macros, we disabled normal logging
1961 on the basis that it would fail; for the Exim run-time user, this is not
1962 the case, and it resulted in successful deliveries going unlogged.
1963 Fixed. Reported by Andreas Metzler.
1964
8c07b69f 1965
97fd1e48 1966Exim version 4.73
ed7f7860 1967-----------------
97fd1e48
PP
1968
1969PP/01 Date: & Message-Id: revert to normally being appended to a message,
1970 only prepend for the Resent-* case. Fixes regression introduced in
1971 Exim 4.70 by NM/22 for Bugzilla 607.
1972
6901c596
PP
1973PP/02 Include check_rfc2047_length in configure.default because we're seeing
1974 increasing numbers of administrators be bitten by this.
1975
a8c8d6b5
JJ
1976JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1977
77bb000f
PP
1978PP/03 Bugzilla 994: added openssl_options main configuration option.
1979
a29e5231
PP
1980PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1981
ec5a0394 1982PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 1983
55c75993
PP
1984PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1985
453a6645 1986PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
1987 without a peer certificate, leading to a segfault because of an
1988 assumption that peers always have certificates. Be a little more
453a6645
PP
1989 paranoid. Problem reported by Martin Tscholak.
1990
8544e77a
PP
1991PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1992 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1993 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
1994 CL also introduces -bmalware, various -d+acl logging additions and
1995 more caution in buffer sizes.
8544e77a 1996
83e029d5
PP
1997PP/09 Implemented reverse_ip expansion operator.
1998
ed7f7860
PP
1999PP/10 Bugzilla 937: provide a "debug" ACL control.
2000
7d9f747b
PP
2001PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2002
4b2241d2
PP
2003PP/12 Bugzilla 973: Implement --version.
2004
10385c15
PP
2005PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2006
dbc4b90d
PP
2007PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2008
532be449
PP
2009PP/15 Bugzilla 816: support multiple condition rules on Routers.
2010
6a8de854 2011PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2012 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2013 ignore trailing whitespace.
6a8de854 2014
5dc43717
JJ
2015JJ/02 prevent non-panic DKIM error from being sent to paniclog
2016
2017JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2018 "exim" to be used
55c75993 2019
3346ab01
PP
2020PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2021 Notification from Dr Andrew Aitchison.
2022
491fab4c
PP
2023PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2024 ExtendedDetectionInfo response format.
2025 Notification from John Horne.
2026
13eb9497
PP
2027PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2028 compatible.
2029
2030PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2031 XSL and documented dependency on system catalogs, with examples of how
2032 it normally works.
2033
7f36d675
DW
2034DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2035 access.
2036
c1d94452
DW
2037DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2038 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2039 configuration file which is writeable by the Exim user or group.
2040
e2f5dc15
DW
2041DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2042 of configuration files to cover files specified with the -C option if
2043 they are going to be used with root privileges, not just the default
2044 configuration file.
2045
cd25e41d
DW
2046DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2047 option (effectively making it always true).
2048
261dc43e
DW
2049DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2050 files to be used while preserving root privileges.
2051
fa32850b
DW
2052DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2053 that rogue child processes cannot use them.
2054
79d4bc3d
PP
2055PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2056 run-time user, instead of root.
2057
43236f35 2058PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2059 Exim run-time user without dropping privileges.
2060
fb08281f
DW
2061DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2062 result string, instead of calling string_vformat() twice with the same
2063 arguments.
3346ab01 2064
74935b98
DW
2065DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2066 for other users. Others should always drop root privileges if they use
2067 -C on the command line, even for a whitelisted configure file.
2068
90b6341f
DW
2069DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2070
57730b52
ML
2071NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2072
66581d1e 2073
465e92cf
JJ
2074Exim version 4.72
2075-----------------
2076
453a6645
PP
2077JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2078 $data_path, and $header_path variables; fixed documentation bugs and
2079 typos
465e92cf 2080
453a6645
PP
2081JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2082 exipick to access non-standard spools, including the "frozen" queue
2083 (Finput)
edae0343 2084
9bd3e22c
NM
2085NM/01 Bugzilla 965: Support mysql stored procedures.
2086 Patch from Alain Williams
2087
bb576ff7
NM
2088NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2089
5a1a5845
NM
2090NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2091 Patch from Andreas Metzler
2092
981a9fad
NM
2093NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2094 Patch from Kirill Miazine
2095
7fc497ee
NM
2096NM/05 Bugzilla 671: Added umask to procmail example.
2097
1a41defa
JJ
2098JJ/03 installed exipick 20100323.0, fixing doc bug
2099
a466095c 2100NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2101 directory. Notification and patch from Dan Rosenberg.
a466095c 2102
94a6bd0b
NM
2103TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2104
2105TK/02 Improve log output when DKIM signing operation fails.
2106
2107MH/01 Treat the transport option dkim_domain as a colon separated
2108 list, not as a single string, and sign the message with each element,
2109 omitting multiple occurences of the same signer.
2110
c1b141a8
NM
2111NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2112 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2113
b26eacf1 2114NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2115 Patch by Simon Arlott
2116
179c5980 2117PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2118 MBX locking. Notification from Dan Rosenberg.
179c5980 2119
9bd3e22c 2120
7c6d71af
NM
2121Exim version 4.71
2122-----------------
2123
7d9f747b 2124TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2125
f013fb92
NM
2126NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2127
0eb8eedd
NM
2128NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2129
663ee6d9
NM
2130NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2131
177ebd9b
NM
2132NM/04 Bugzilla 915: Flag broken perl installation during build.
2133
7c6d71af 2134
210f147e
NM
2135Exim version 4.70
2136-----------------
2137
cdd3bb85 2138TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2139 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2140
2141TK/02 Write list of recipients to X-Envelope-Sender header when building
2142 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2143 Hirsch).
cdd3bb85
TK
2144
2145TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2146 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2147 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2148
2149TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2150 by Mark Daniel Reidel <mr@df.eu>.
2151
210f147e
NM
2152NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2153 When building exim an external PCRE library is now needed -
2154 PCRE is a system library on the majority of modern systems.
2155 See entry on PCRE_LIBS in EDITME file.
2156
deafd5b3
NM
2157NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2158 conversation. Added nologin parameter to request.
7d9f747b 2159 Patch contributed by Kirill Miazine.
deafd5b3 2160
089793a4
TF
2161TF/01 Do not log submission mode rewrites if they do not change the address.
2162
5f16ca82
TF
2163TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2164
dae9d94e 2165NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2166 log files in place. Contributed by Roberto Lima.
dae9d94e 2167
7d9f747b 2168NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2169
06864c44
TF
2170TF/03 Bugzilla 615: When checking the local_parts router precondition
2171 after a local_part_suffix or local_part_prefix option, Exim now
2172 does not use the address's named list lookup cache, since this
2173 contains cached lookups for the whole local part.
2174
65a7d8c3 2175NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2176 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2177
23510047 2178TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2179
7d9f747b 2180NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2181
7d8eec3a 2182NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2183 Patch provided by Jan Srzednicki.
6c588e74 2184
89dec7b6
TF
2185TF/05 Leading white space used to be stripped from $spam_report which
2186 wrecked the formatting. Now it is preserved.
5f28a6e8 2187
a99de90c
TF
2188TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2189 that they are available at delivery time.
2190
e2803e40
TF
2191TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2192
7199e1ee
TF
2193TF/08 TLS error reporting now respects the incoming_interface and
2194 incoming_port log selectors.
2195
e276e04b
TF
2196TF/09 Produce a more useful error message if an SMTP transport's hosts
2197 setting expands to an empty string.
2198
ce552449 2199NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2200 Patch provided by Phil Pennock.
ce552449 2201
e765a0f1 2202NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2203 Patch provided by Richard Godbee.
e765a0f1 2204
4f054c63 2205NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2206 acl_smtp_notquit, added index entry.
4f054c63 2207
7d9f747b
PP
2208NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2209 Patch provided by Eugene Bujak.
24c929a2 2210
7d9f747b
PP
2211NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2212 accept(). Patch provided by Maxim Dounin.
cf73943b 2213
b52bc06e 2214NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2215 Patch provided by Phil Pennock.
b52bc06e 2216
447de4b0
NM
2217NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2218
4c69d561 2219NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2220 Patch provided by Brad "anomie" Jorsch.
4c69d561 2221
d5c39246 2222NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2223 Patch provided by Dean Brooks.
9b989985 2224
0b23848a
TK
2225TK/05 Add native DKIM support (does not depend on external libraries).
2226
8f3414a1 2227NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2228 Patch provided by Graeme Fowler.
e2aacdfd 2229
fb6f955d
NM
2230NM/16 Bugzilla 851: Documentation example syntax fix.
2231
2232NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2233
7d9f747b
PP
2234NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2235 lsearch.
dbb0bf41 2236
7d9f747b
PP
2237NM/19 Bugzilla 745: TLS version reporting.
2238 Patch provided by Phil Pennock.
f3766eb5 2239
7d9f747b
PP
2240NM/20 Bugzilla 167: bool: condition support.
2241 Patch provided by Phil Pennock.
36f12725 2242
7d9f747b
PP
2243NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2244 clients. Patch provided by Phil Pennock.
e6060e2c 2245
7d9f747b
PP
2246NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2247 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2248
7d9f747b
PP
2249NM/23 Bugzilla 687: Fix misparses in eximstats.
2250 Patch provided by Heiko Schlittermann.
d5c13d66 2251
7d9f747b
PP
2252NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2253 Patch provided by Heiko Schlittermann.
b2335c0b 2254
7d9f747b 2255NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2256 plus update to original patch.
f4cd9433 2257
7d9f747b 2258NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2259
7d9f747b
PP
2260NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2261 Patch provided by David Brownlee.
8dc71ab3 2262
7d9f747b 2263NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2264
7d9f747b 2265NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2266
7d9f747b 2267NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2268
7d9f747b 2269NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2270
17792b53 2271NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2272 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2273
7d9f747b
PP
2274NM/33 Bugzilla 898: Transport filter timeout fix.
2275 Patch by Todd Rinaldo.
52383f8f 2276
91576cec 2277NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2278 Patch by Serge Demonchaux.
5ca6d115 2279
7d9f747b
PP
2280NM/35 Bugzilla 39: Base64 decode bug fixes.
2281 Patch by Jakob Hirsch.
baee9eee 2282
7d9f747b 2283NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2284
7d9f747b 2285NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2286
7d9f747b 2287NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2288
7d9f747b 2289NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2290
deafd5b3 2291
47db1125
NM
2292Exim version 4.69
2293-----------------
2294
4b3504d0
TK
2295TK/01 Add preliminary DKIM support. Currently requires a forked version of
2296 ALT-N's libdkim that I have put here:
2297 http://duncanthrax.net/exim-experimental/
2298
2299 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2300 were called 'true' and it seems that C99 defines that as a reserved
2301 keyword to be used with 'bool' variable types. That means you could
2302 not include C99-style headers which use bools without triggering
2303 build errors in sieve.c.
2304
81ea09ca
NM
2305NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2306 as mailq or other aliases. Changed the --help handling significantly
2307 to do whats expected. exim_usage() emits usage/help information.
2308
f13cddcb
SC
2309SC/01 Added the -bylocaldomain option to eximstats.
2310
7d9f747b 2311NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2312
7d9f747b 2313NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2314
7d9f747b 2315NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2316
2317
eb4c0de6
PH
2318Exim version 4.68
2319-----------------
2320
2321PH/01 Another patch from the Sieve maintainer.
2322
6a3bceb1
PH
2323PH/02 When an IPv6 address is converted to a string for single-key lookup
2324 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2325 dots are used instead of colons so that keys in lsearch files need not
2326 contain colons. This was done some time before quoting was made available
2327 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2328 (notated using the quote facility) so as to distinguish them from IPv4
2329 keys. This meant that lookups for IP addresses in host lists did not work
2330 for iplsearch lookups.
2331
2332 This has been fixed by arranging for IPv6 addresses to be expressed with
2333 colons if the lookup type is iplsearch. This is not incompatible, because
2334 previously such lookups could never work.
2335
4c04137d 2336 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2337 ordinary lsearch keys. However, making the change in all cases is
2338 incompatible and would probably break a number of configurations.
2339
2e30fa9d
TK
2340TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2341 version.
2342
0806a9c5
MH
2343MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2344 conversion specification without a maximum field width, thereby enabling
2345 a rogue spamd server to cause a buffer overflow. While nobody in their
2346 right mind would setup Exim to query an untrusted spamd server, an
2347 attacker that gains access to a server running spamd could potentially
2348 exploit this vulnerability to run arbitrary code as the Exim user.
2349
ae276964
TK
2350TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2351 $primary_hostname instead of what libspf2 thinks the hosts name is.
2352
0f2cbd1b
MH
2353MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2354 a directory entry by the name of the lookup key. Previously, if a
2355 symlink pointed to a non-existing file or a file in a directory that
2356 Exim lacked permissions to read, a lookup for a key matching that
2357 symlink would fail. Now it is enough that a matching directory entry
2358 exists, symlink or not. (Bugzilla 503.)
2359
2b85bce7
PH
2360PH/03 The body_linecount and body_zerocount variables are now exported in the
2361 local_scan API.
2362
93655c46
PH
2363PH/04 Added the $dnslist_matched variable.
2364
6c512171
PH
2365PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2366 This means they are set thereafter only if the connection becomes
2367 encrypted.
2368
2369PH/06 Added the client_condition to authenticators so that some can be skipped
2370 by clients under certain conditions.
2371
aa6dc513
PH
2372PH/07 The error message for a badly-placed control=no_multiline_responses left
2373 "_responses" off the end of the name.
2374
a96603a0
PH
2375PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2376
8f240103
PH
2377PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2378 (without spaces) instead of just copying the configuration text.
2379
2380PH/10 Added the /noupdate option to the ratelimit ACL condition.
2381
d677b2f2
PH
2382PH/11 Added $max_received_linelength.
2383
d52120f2
PH
2384PH/12 Added +ignore_defer and +include_defer to host lists.
2385
64f2600a
PH
2386PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2387 way in which PCRE > 7.0 is built.
2388
8669f003
PH
2389PH/14 Implemented queue_only_load_latch.
2390
a4dc33a8
PH
2391PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2392 MAIL command. The effect was to mangle the value on 64-bit systems.
2393
d6a60c0f
PH
2394PH/16 Another patch from the Sieve maintainer.
2395
8f128379
PH
2396PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2397
8932dffe
PH
2398PH/18 If a system quota error occurred while trying to create the file for
2399 a maildir delivery, the message "Mailbox is full" was not appended to the
2400 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2401 only to a quota excession during the actual writing of the file.
d6a60c0f 2402
ddea74fa 2403PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2404 characters?) which causes problems in log lines. The DN values are now
2405 passed through string_printing() before being added to log lines.
2406
ddea74fa 2407PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2408 and InterBase are left for another time.)
2409
ddea74fa
PH
2410PH/21 Added message_body_newlines option.
2411
ce9f225c
PH
2412PH/22 Guard against possible overflow in moan_check_errorcopy().
2413
19897d52
PH
2414PH/23 POSIX allows open() to be a macro; guard against that.
2415
bc64a74d
PH
2416PH/24 If the recipient of an error message contained an @ in the local part
2417 (suitably quoted, of course), incorrect values were put in $domain and
2418 $local_part during the evaluation of errors_copy.
2419
eb4c0de6 2420
b4ed4da0
PH
2421Exim version 4.67
2422-----------------
2423
22ad45c9
MH
2424MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2425 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2426 Jan Srzednicki.
2427
b4ed4da0
PH
2428PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2429 issue a MAIL command.
2430
431b7361
PH
2431PH/02 In an ACL statement such as
2432
2433 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2434
2435 if a client was not listed at all, or was listed with a value other than
2436 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2437 the condition was not true (as it should be), so access was not denied.
2438 The bug was that the ! inversion was incorrectly passed on to the second
2439 item. This has been fixed.
2440
2441PH/03 Added additional dnslists conditions == and =& which are different from
2442 = and & when the dns lookup returns more than one IP address.
2443
83da1223
PH
2444PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2445 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2446
54fc8428
PH
2447PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2448 FSYNC, which compiles an option called disable_fsync that allows for
2449 bypassing fsync(). The documentation is heavily laced with warnings.
2450
34c5e8dd
SC
2451SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2452
bbe15da8
PH
2453PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2454 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2455 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2456 including adding "make clean"; (3) Added -fPIC when compiling the test
2457 dynamically loaded module, to get rid of a warning.
2458
0e8a9471
MH
2459MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2460 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2461 = 0s. The bug is otherwise harmless.
2462
f0872424
PH
2463PH/07 There was a bug in the dovecot authenticator such that the value of
2464 $auth1 could be overwritten, and so not correctly preserved, after a
2465 successful authentication. This usually meant that the value preserved by
2466 the server_setid option was incorrect.
2467
b01dd148
PH
2468PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2469
6bf342e1
PH
2470PH/09 Installed PCRE release 7.0.
2471
273f34d0
PH
2472PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2473 run for batched SMTP input. It is now run at the start of every message
2474 in the batch. While fixing this I discovered that the process information
2475 (output by running exiwhat) was not always getting set for -bs and -bS
2476 input. This is fixed, and it now also says "batched" for BSMTP.
2477
cf8b11a5
PH
2478PH/11 Added control=no_pipelining.
2479
41c7c167
PH
2480PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2481 patch, slightly modified), and move the expansion of helo_data till after
2482 the connection is made in the smtp transport (so it can use these
2483 values).
2484
9c57cbc0
PH
2485PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2486
f3f065bb
PH
2487PH/14 Added log_selector = +pid.
2488
047bdd8c
PH
2489PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2490
0ce9abe6
PH
2491PH/16 Add ${if forany and ${if forall.
2492
0e22dfd1
PH
2493PH/17 Added dsn_from option to vary the From: line in DSNs.
2494
4c590bd1
PH
2495PH/18 Flush SMTP output before performing a callout, unless control =
2496 no_callout_flush is set.
2497
09945f1e
PH
2498PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2499 was true (the default) a successful delivery failed to delete the retry
2500 item, thus causing premature timeout of the address. The bug is now
2501 fixed.
2502
c51b8e75
PH
2503PH/20 Added hosts_avoid_pipelining to the smtp transport.
2504
e28326d8 2505PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2506 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2507 other ACL rejections are.
2508
75b1493f
PH
2509PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2510 with slight modification.
2511
7c5214ec
PH
2512PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2513 draft, changing the syntax and factoring some duplicate code".
2514
4311097e
PH
2515PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2516 for deliveries of the second and subsequent messages over the same SMTP
2517 connection.
2518
29f89cad
PH
2519PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2520 ${reduce, with only minor "tidies".
2521
5e687460
SC
2522SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2523
c3611384
PH
2524PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2525 expansion side effects.
2526
5a11a7b4
PH
2527PH/27 When a message times out after an over-quota error from an Exim-imposed
2528 quota, the bounce message says "mailbox is full". This message was not
2529 being given when it was a system quota that was exceeded. It now should
2530 be the same.
2531
0e20aff9
MH
2532MH/03 Made $recipients available in local_scan(). local_scan() already has
2533 better access to the recipient list through recipients_list[], but
2534 $recipients can be useful in postmaster-provided expansion strings.
2535
ca86f471
PH
2536PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2537 in the case of a MAIL command with additional options following the
2538 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2539 were accidentally chopped off.
2540
a14e5636
PH
2541PH/29 SMTP synchronization checks are implemented when a command is read -
2542 there is a check that no more input is waiting when there shouldn't be
2543 any. However, for some commands, a delay in an ACL can mean that it is
2544 some time before the response is written. In this time, more input might
2545 arrive, invalidly. So now there are extra checks after an ACL has run for
2546 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2547 pipelining has not been advertised.
2548
ec95d1a6
PH
2549PH/30 MH's patch to allow iscntrl() characters to be list separators.
2550
42855d71
PH
2551PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2552 returned in the SMTP response when smtp_return_error_details was false.
2553 This has been fixed.
2554
57c2c631
PH
2555PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2556 instead of the C I/O that was originally supplied, because problems were
2557 reported on Solaris.
2558
58c01c94
PH
2559PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2560 Exim which did not show up earlier: it was assuming that a call to
2561 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2562 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2563 was a macro that became an assignment, so it seemed to work. This has
2564 changed to a proper function call with a void return, hence the compile
2565 error. Exim's code has been fixed.
2566
dee5a20a
PH
2567PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2568 cpus.
2569
d2ee6114
PH
2570PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2571
b2d5182b
PH
2572PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2573
79749a79
PH
2574PH/37 If a message is not accepted after it has had an id assigned (e.g.
2575 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2576 "Completed" line in the log. When some messages of this type were
2577 selected by exigrep, they were listed as "not completed". Others were
2578 picked up by some special patterns. I have improved the selection
2579 criteria to be more general.
79749a79 2580
c456d9bb
PH
2581PH/38 The host_find_failed option in the manualroute router can now be set
2582 to "ignore", to completely ignore a host whose IP address cannot be
2583 found. If all hosts are ignored, the behaviour is controlled by the new
2584 host_all_ignored option.
2585
cd9868ec
PH
2586PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2587 homing or because of multiple MX records with /mx) generated more than
2588 one IP address, and the following item turned out to be the local host,
2589 all the secondary addresses of the first item were incorrectly removed
2590 from the list, along with the local host and any following hosts (which
2591 is what is supposed to happen).
2592
ebeaf996
PH
2593PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2594 whoever called Exim into the -H file. In the case of the daemon it was
2595 behaving confusingly. When first started, it used values for whoever
2596 started the daemon, but after a SIGHUP it used the Exim user (because it
2597 calls itself on a restart). I have changed the code so that it now always
2598 uses the Exim user.
2599
2679d413
PH
2600PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2601 message are rejected with the same error (e.g. no authentication or bad
2602 sender address), and a DATA command is nevertheless sent (as can happen
2603 with PIPELINING or a stupid MUA), the error message that was given to the
2604 RCPT commands is included in the rejection of the DATA command. This is
2605 intended to be helpful for MUAs that show only the final error to their
2606 users.
2607
84024b72
PH
2608PH/42 Another patch from the Sieve maintainer.
2609
8005d38e
SC
2610SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2611 Eximstats - Fixed some broken HTML links and added missing column headers
2612 (Jez Hancock).
2613 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2614 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2615
3298c6c6
SC
2616SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2617
a43a27c5
PH
2618PH/43 Yet another patch from the Sieve maintainer.
2619
58eb016e 2620PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2621 the response to the final '.' that terminates a message, but only in the
2622 case where the client has not sent further data following the '.'
2623 (unfortunately, this is allowed). However, in many cases there won't be
2624 any further data because there won't be any more messages to send. A call
2625 to select() can be used: if it shows that the input is "ready", there is
2626 either input waiting, or the socket has been closed. An attempt to read
2627 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2628 would have sent an OK response which the client would never have see.
563b63fa
PH
2629 This could lead to message repetition. This fix should cure that, at
2630 least in a lot of common cases.
58eb016e 2631
b43a74ea
PH
2632PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2633 advertised in response to EHLO.
2634
b4ed4da0 2635
5dd1517f
PH
2636Exim version 4.66
2637-----------------
2638
2639PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2640 fixed by 4.65/MH/01 (is this a record?) are fixed:
2641
2642 (i) An empty string was always treated as zero by the numeric comparison
2643 operators. This behaviour has been restored.
2644
2645 (ii) It is documented that the numeric comparison operators always treat
2646 their arguments as decimal numbers. This was broken in that numbers
2647 starting with 0 were being interpreted as octal.
2648
2649 While fixing these problems I realized that there was another issue that
2650 hadn't been noticed. Values of message_size_limit (both the global option
2651 and the transport option) were treated as octal if they started with 0.
2652 The documentation was vague. These values are now always treated as
2653 decimal, and I will make that clear in the documentation.
2654
2655
93cfa765
TK
2656Exim version 4.65
2657-----------------
2658
2659TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2660 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2661 versions. (#438)
2662
d6066548
MH
2663MH/01 Don't check that the operands of numeric comparison operators are
2664 integers when their expansion is in "skipping" mode (fixes bug
2665 introduced by 4.64-PH/07).
2666
4362ff0d
PH
2667PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2668 child addresses, Exim now panics and dies. Previously, because the count
2669 is held in a short int, deliveries were likely to be lost. As such a
2670 large number of recipients for a single message is ridiculous
2671 (performance will be very, very poor), I have chosen to impose a limit
2672 rather than extend the field.
2673
93cfa765 2674
944e9e9c
TF
2675Exim version 4.64
2676-----------------
aa41d2de 2677
21d74bd9
TK
2678TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2679 leftover -K file (the existence of which was triggered by #402).
2680 While we were at it, introduced process PID as part of the -K
2681 filename. This should rule out race conditions when creating
2682 these files.
2683
2684TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2685 processing considerably. Previous code took too long for large mails,
2686 triggering a timeout which in turn triggers #401.
2687
2688TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2689 in the DK code in transports.c. sendfile() is not really portable,
2690 hence the _LINUX specificness.
944e9e9c
TF
2691
2692TF/01 In the add_headers option to the mail command in an Exim filter,
2693 there was a bug that Exim would claim a syntax error in any
2694 header after the first one which had an odd number of characters
2695 in the field name.
2696
2b1c6e3a
PH
2697PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2698 callout verification, Exim cached a "reject" for the entire domain. This
2699 is correct for most verifications, but it is not correct for a recipient
2700 verification with use_sender or use_postmaster set, because in that case
2701 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2702 case of MAIL FROM:<> rejection from other early rejections (e.g.
2703 rejection of HELO). When verifying a recipient using a non-null MAIL
2704 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2705 Whatever the result of the callout, the value of the domain cache is
2706 left unchanged (for any other kind of callout, getting as far as trying
2707 RCPT means that the domain itself is ok).
2708
1f872c80
PH
2709PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2710 gcc 4.1.1 threw up.
2711
2712PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2713 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2714 session, the daemon ignores ECONNECT errors and logs others; it now
2715 ignores EPIPE as well.
2716
d203e649
PH
2717PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2718 (quoted-printable decoding).
2719
cc2ed8f7 2720PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2721 later the small subsequent patch to fix an introduced bug.
f951fd57 2722
ddfcd446
PH
2723PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2724
d45b1de8
PH
2725PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2726
2727PH/08 An error is now given if message_size_limit is specified negative.
2728
38a0a95f 2729PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2730 to be given (somewhat) arbitrary names.
38a0a95f 2731
a2405d83
JJ
2732JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2733 in 4.64-PH/09.
2734
2735JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2736 miscellaneous code fixes
2737
6ea85e9a
PH
2738PH/10 Added the log_reject_target ACL modifier to specify where to log
2739 rejections.
2740
26da7e20
PH
2741PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2742 hostname. This is wrong, because it relates to the incoming message (and
2743 probably the interface on which it is arriving) and not to the outgoing
2744 callout (which could be using a different interface). This has been
2745 changed to use the value of the helo_data option from the smtp transport
2746 instead - this is what is used when a message is actually being sent. If
2747 there is no remote transport (possible with a router that sets up host
2748 addresses), $smtp_active_hostname is used.
6ea85e9a 2749
14aa5a05 2750PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2751 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2752 (a) The code assumed that strncpy() returns a negative number on buffer
2753 overflow, which isn't the case. Replaced with Exim's string_format()
2754 function.
2755 (b) There were several signed/unsigned issues. I just did the minimum
2756 hacking in of casts. There is scope for a larger refactoring.
2757 (c) The code used strcasecmp() which is not a standard C function.
2758 Replaced with Exim's strcmpic() function.
2759 (d) The code set only $1; it now sets $auth1 as well.
2760 (e) A simple test gave the error "authentication client didn't specify
2761 service in request". It would seem that Dovecot has changed its
2762 interface. Fortunately there's a specification; I followed it and
2763 changed what the client sends and it appears to be working now.
2764
ff75a1f7
PH
2765PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2766 decoding.
2767
e6f6568e
PH
2768PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2769 address A is aliased to B and C, where B exists and C does not. Without
2770 -v the output is "A verified" because verification stops after a
2771 successful redirection if more than one address is generated. However,
2772 with -v the child addresses are also verified. Exim was outputting "A
2773 failed to verify" and then showing the successful verification for C,
2774 with its parentage. It now outputs "B failed to verify", showing B's
2775 parentage before showing the successful verification of C.
2776
d6f6e0dc
PH
2777PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2778 look up a TXT record in a specific list after matching in a combined
2779 list.
2780
322050c2
PH
2781PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2782 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2783 they consult the DNS. I had assumed they would set it the way they
2784 wanted; and indeed my experiments on Linux seem to show that in some
2785 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2786 To be on the safe side, however, I have now made the interface to
2787 host_find_byname() similar to host_find_bydns(), with an argument
2788 containing the DNS resolver options. The host_find_byname() function now
2789 sets these options at its start, just as host_find_bydns() does. The smtp
2790 transport options dns_qualify_single and dns_search_parents are passed to
2791 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2792 of host_find_byname() use the default settings of RES_DEFNAMES
2793 (qualify_single) but not RES_DNSRCH (search_parents).
2794
08955dd3
PH
2795PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2796 spool_read_header() do less string testing, by means of a preliminary
2797 switch on the second character of optional "-foo" lines. (This is
2798 overdue, caused by the large number of possibilities that now exist.
2799 Originally there were few.) While I was there, I also converted the
2800 str(n)cmp tests so they don't re-test the leading "-" and the first
2801 character, in the hope this might squeeze out yet more improvement.
2802
1eccaa59
PH
2803PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2804 flag allowing group syntax was set by the header_syntax check but not
2805 turned off, possible causing trouble later; (2) The flag was not being
2806 set at all for the header_verify test, causing "group"-style headers to
2807 be rejected. I have now set it in this case, and also caused header_
2808 verify to ignore an empty address taken from a group. While doing this, I
2809 came across some other cases where the code for allowing group syntax
2810 while scanning a header line wasn't quite right (mostly, not resetting
2811 the flag correctly in the right place). These bugs could have caused
2812 trouble for malformed header lines. I hope it is now all correct.
2813
602e59e5
PH
2814PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2815 with the "reply" argument non-NULL. The code, however (which originally
2816 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2817 but it didn't always do it. This confused somebody who was copying the
2818 code for some other use. I have removed all the tests.
2819
411ef850
PH
2820PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2821 feature that was used to support insecure browsers during the U.S. crypto
2822 embargo. It requires special client support, and Exim is probably the
2823 only MTA that supported it -- and would never use it because real RSA is
2824 always available. This code has been removed, because it had the bad
2825 effect of slowing Exim down by computing (never used) parameters for the
2826 RSA_EXPORT functionality.
2827
7befa435
PH
2828PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2829 authenticator to fail if there's a tab character in the incoming data
2830 (there should never be unless someone is messing about, as it's supposed
2831 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2832 if the connection is using TLS or if the remote IP is the same as the
2833 local IP, and the "valid-client-cert option" if a client certificate has
2834 been verified.
2835
48da4259 2836PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2837 authenticators. This can be used for authorization after authentication
2838 succeeds. (In the case of plaintext, it servers for both authentication
2839 and authorization.)
2840
48da4259
PH
2841PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2842 if any retry times were supplied.
2843
d1d5595c
PH
2844PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2845 connection, where there is no client IP address to check. In this
2846 situation, the verify now always succeeds.
2847
0ef732d9
PH
2848PH/25 Applied John Jetmore's -Mset patch.
2849
328895cc
PH
2850PH/26 Added -bem to be like -Mset, but loading a message from a file.
2851
fd700877
PH
2852PH/27 In a string expansion for a processed (not raw) header when multiple
2853 headers of the same name were present, leading whitespace was being
2854 removed from all of them, but trailing whitespace was being removed only
2855 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2856 before concatenation. Completely empty headers in a concatenation (as
2857 before) are ignored.
fd700877 2858
8dce1a6f
PH
2859PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2860 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2861
17af4a17
PH
2862PH/29 [Removed. This was a change that I later backed out, and forgot to
2863 correct the ChangeLog entry (that I had efficiently created) before
2864 committing the later change.]
f6c332bd
PH
2865
2866PH/30 Exim was sometimes attempting to deliver messages that had suffered
2867 address errors (4xx response to RCPT) over the same connection as other
2868 messages routed to the same hosts. Such deliveries are always "forced",
2869 so retry times are not inspected. This resulted in far too many retries
2870 for the affected addresses. The effect occurred only when there were more
2871 hosts than the hosts_max_try setting in the smtp transport when it had
2872 the 4xx errors. Those hosts that it had tried were not added to the list
2873 of hosts for which the message was waiting, so if all were tried, there
2874 was no problem. Two fixes have been applied:
2875
2876 (i) If there are any address or message errors in an SMTP delivery, none
2877 of the hosts (tried or untried) are now added to the list of hosts
2878 for which the message is waiting, so the message should not be a
2879 candidate for sending over the same connection that was used for a
2880 successful delivery of some other message. This seems entirely
2881 reasonable: after all the message is NOT "waiting for some host".
2882 This is so "obvious" that I'm not sure why it wasn't done
2883 previously. Hope I haven't missed anything, but it can't do any
2884 harm, as the worst effect is to miss an optimization.
2885
2886 (ii) If, despite (i), such a delivery is accidentally attempted, the
2887 routing retry time is respected, so at least it doesn't keep
2888 hammering the server.
2889
c1114884
PH
2890PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2891 in ${readsocket because some servers need this prod.
2892
7a0743eb
PH
2893PH/32 Added some extra debug output when updating a wait-xxx database.
2894
0d85fa3f
PH
2895PH/33 The hint "could be header name not terminated by colon", which has been
2896 given for certain expansion errors for a long time, was not being given
2897 for the ${if def:h_colon_omitted{... case.
2898
1bf43b78
PH
2899PH/34 The spec says: "With one important exception, whenever a domain list is
2900 being scanned, $domain contains the subject domain." There was at least
2901 one case where this was not true.
2902
520de300
PH
2903PH/35 The error "getsockname() failed: connection reset by peer" was being
2904 written to the panic log as well as the main log, but it isn't really
2905 panic-worthy as it just means the connection died rather early on. I have
2906 removed the panic log writing for the ECONNRESET error when getsockname()
2907 fails.
2908
48c7f9e2
PH
2909PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2910 runs only) independently of the message's sender address. This meant
2911 that, if the 4xx error was in fact related to the sender, a different
2912 message to the same recipient with a different sender could confuse
4c04137d 2913 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2914 server, but other circumstances could also provoke similar problems.
2915 I have changed the default so that the retry time for these errors is now
2916 based a combination of the sender and recipient addresses. This change
2917 can be overridden by setting address_retry_include_sender=false in the
2918 smtp transport.
2919
99ea1c86
PH
2920PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2921 remote server are returned as part of bounce messages. This was not
2922 happening for LMTP over a pipe (the lmtp transport), but now it is the
2923 same for both kinds of LMTP.
2924
a2042e78
PH
2925PH/38 Despite being documented as not happening, Exim was rewriting addresses
2926 in header lines that were in fact CNAMEs. This is no longer the case.
2927
4fbcfc2e
PH
2928PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2929 and queue runs started by the daemon processed all messages. This has
2930 been fixed so that -R and -S can now usefully be given with -q<time>.
2931
aa41d2de
PH
2932PH/40 Import PCRE release 6.7 (fixes some bugs).
2933
af561417
PH
2934PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2935
3cc66b45
PH
2936PH/42 Give an error if -q is specified more than once.
2937
194cc0e4
PH
2938PH/43 Renamed the variables $interface_address and $interface_port as
2939 $received_ip_address and $received_port, to make it clear that these
2940 values apply to message reception, and not to the outgoing interface when
2941 a message is delivered. (The old names remain recognized, of course.)
2942
a401ddaa
PH
2943PH/44 There was no timeout on the connect() call when using a Unix domain
2944 socket in the ${readsocket expansion. There now is.
2945
4e88a19f
PH
2946PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2947 be meaningful with "accept".
2948
d7d7b289
SC
2949SC/01 Eximstats V1.43
2950 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2951
2952SC/02 Eximstats V1.44
2953 Use a glob alias rather than an array ref in the generated
2954 parser. This improves both readability and performance.
2955
2956SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2957 Collect SpamAssassin and rejection statistics.
2958 Don't display local sender or destination tables unless
2959 there is data to show.
2960 Added average volumes into the top table text output.
2961
2962SC/04 Eximstats V1.46
2963 Collect data on the number of addresses (recipients)
2964 as well as the number of messages.
2965
2966SC/05 Eximstats V1.47
2967 Added 'Message too big' to the list of mail rejection
2968 reasons (thanks to Marco Gaiarin).
2969
2970SC/06 Eximstats V1.48
2971 Mainlog lines which have GMT offsets and are too short to
2972 have a flag are now skipped.
2973
2974SC/07 Eximstats V1.49 (Alain Williams)
2975 Added the -emptyok flag.
2976
2977SC/08 Eximstats V1.50
2978 Fixes for obtaining the IP address from reject messages.
2979
0ea2a468
JJ
2980JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2981 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 2982 whitespace changes from 4.64-PH/27
0ea2a468
JJ
2983
2984JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2985 match 4.64-PH/13
2986
2987JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2988 are found, allow negative numbers in numeric criteria)
2989
2990JJ/06 exipick.20061117.2, added new $message_body_missing variable
2991
2992JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2993 to match changes made in 4.64-PH/43
2994
8a10f5a4
PH
2995PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2996
30e18802
PH
2997PH/47 Put in an explicit test for a DNS lookup of an address record where the
2998 "domain" is actually an IP address, and force a failure. This locks out
2999 those revolvers/nameservers that support "A-for-A" lookups, in
3000 contravention of the specifications.
3001
55728a4f
PH
3002PH/48 When a host name was looked up from an IP address, and the subsequent
3003 forward lookup of the name timed out, the host name was left in
3004 $sender_host_name, contrary to the specification.
d7d7b289 3005
d7837193
PH
3006PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3007 restricted to single-key lookups, Exim was not diagnosing an error if
3008 * or *@ was used with a query-style lookup.
3009
87054a31
PH
3010PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3011
ea2c01d2
MH
3012MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3013 long ago, but noone interested enough thought of it. Let's just say that
3014 the "1.1" means that there are some new functions that weren't there at
3015 some point in the past.
3016
e4fa6968
PH
3017PH/51 Error processing for expansion failure of helo_data from an smtp
3018 transport during callout processing was broken.
3019
56f5d9bd
PH
3020PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3021 tested/used via the -bh/-bhc/-bs options.
3022
922e1c28
PH
3023PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3024 bug, fixed in subsequent PCRE releases).
3025
21eb6e72
PH
3026PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3027 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3028
a0540757
PH
3029PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3030
944e9e9c 3031
478be7b0
SC
3032Exim version 4.63
3033-----------------
3034
3035SC/01 Use a glob alias rather than an array ref in eximstats generated
3036 parser. This improves both readability and performance.
3037
3038SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3039 Don't display local sender or destination tables in eximstats unless
3040 there is data to show.
3041 Added average volumes into the eximstats top table text output.
3042
3043SC/03 Collect data on the number of addresses (recipients) as well
3044 as the number of messages in eximstats.
3045
2b965a65
TF
3046TF/01 Correct an error in the documentation for the redirect router. Exim
3047 does (usually) call initgroups() when daemonizing.
478be7b0 3048
45b91596
PH
3049TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3050 with consistent privilege compared to when running as a daemon.
478be7b0 3051
c59f5781
TF
3052TF/03 Note in the spec that $authenticated_id is not set for local
3053 submissions from trusted users.
3054
90fc3069
TF
3055TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3056 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3057
6083aca0
TF
3058TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3059 by adding some example configuration directives to the default
3060 configuration file. A little bit of work is required to uncomment the
3061 directives and define how usernames and passwords are checked, but
3062 there is now a framework to start from.
3063
765b530f
PH
3064PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3065 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3066 without this. I don't know how relevant this is to other LDAP libraries.
3067
4e167a8c
PH
3068PH/02 Add the verb name to the "unknown ACL verb" error.
3069
4608d683
PH
3070PH/03 Magnus Holmgren's patch for filter_prepend_home.
3071
b8dc3e4a
PH
3072PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3073
5418e93b
PH
3074PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3075 directory not expanded when it should be if an expanded home directory
3076 was set for the address (which is overridden by the transport).
3077
b4a9bda2
PH
3078PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3079 libradius.
3080
45b91596
PH
3081PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3082 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3083 because it is too late at that time, and has no effect.
3084
5547e2c5
PH
3085PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3086 security issue with \' (bugzilla #107). I could not use the
3087 PQescapeStringConn() function, because it needs a PGconn value as one of
3088 its arguments.
3089
dbcef0ea
PH
3090PH/08 When testing addresses using -bt, indicate those final addresses that
3091 are duplicates that would not cause an additional delivery. At least one
3092 person was confused, thinking that -bt output corresponded to deliveries.
3093 (Suppressing duplicates isn't a good idea as you lose the information
3094 about possibly different redirections that led to the duplicates.)
3095
25257489
PH
3096PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3097 systems where poll() doesn't work, in particular OS X.
3098
c816d124
PH
3099PH/10 Added more information to debugging output for retry time not reached.
3100
a9ccd69a
PH
3101PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3102 operations in malware.c.
3103
75fa1910
PH
3104PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3105 signatures.
3106
a7d7aa58
PH
3107PH/13 If write_rejectlog was set false when logging was sent to syslog with
3108 syslog_duplication set false, log lines that would normally be written
3109 both the the main log and to the reject log were not written to syslog at
3110 all.
3111
42119b09
PH
3112PH/14 In the default configuration, change the use of "message" in ACL warn
3113 statements to "add_header".
3114
41609df5
PH
3115PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3116 not followed by a command (e.g. "seen endif").
3117
a5bd321b
PH
3118PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3119 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3120 latter.
3121
e85a7ad5 3122PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3123 so that it is now:
3124
e85a7ad5
PH
3125 ${if or { \
3126 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3127 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3128 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3129 }{no}{yes}}
3130
e85a7ad5
PH
3131 The Auto-Submitted: and various List- headers are standardised, whereas I
3132 don't think Precedence: ever was.
5dff5817 3133
d8fe1c03
PH
3134PH/18 Refactored debugging code in route_finduser() to show more information,
3135 in particular, the error code if getpwnam() issues one.
3136
16282d2b
PH
3137PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3138 This is apparently needed in addition to the PH/07 change above to avoid
3139 any possible encoding problems.
3140
35d40a98
PH
3141PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3142 but not after initializing Perl.
3143
034d99ab
PH
3144PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3145 output them only if debugging. By default they are written stderr,
3146 apparently, which is not desirable.
3147
6ec97b1b
PH
3148PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3149 queries.
3150
e22ca4ac
JJ
3151JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3152 --not options
3153
3154JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3155
33d73e3b
PH
3156PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3157 authenticated or an ident call has been made. Suppress the default
3158 values for $authenticated_id and $authenticated_sender (but permit -oMai
3159 and -oMas) when testing with -bh.
3160
9ecb03f3
PH
3161PH/24 Re-jigged the order of the tests in the default configuration so that the
3162 tests for valid domains and recipients precede the DNS black list and CSA
3163 tests, on the grounds that those ones are more expensive.
3164
084efe8d
PH
3165PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3166 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3167 This bug exists in every version of Exim that I still have, right back to
3168 0.12.
3169
366fc9f0
PH
3170PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3171 However, an attempt to turn on case-sensitivity in a regex key by
3172 including (?-i) didn't work because the subject string was already
3173 lowercased, and the effects were non-intuitive. It turns out that a
3174 one-line patch can be used to allow (?-i) to work as expected.
3175
c59f5781 3176
c887c79e
TF
3177Exim version 4.62
3178-----------------
3179
3180TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3181 other effects) broke the use of negated acl sub-conditions.
3182
1cce3af8
PH
3183PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3184 patch).
3185
afb3eaaf
PH
3186PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3187 "Deny" causes Exim to reject the incoming connection with a 554 error.
3188 Unfortunately, if there is a major crisis, such as a disk failure,
3189 tcp-wrappers gives "deny", whereas what one would like would be some
3190 kind of temporary error. A kludge has been added to help with this.
3191 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3192 554 error is used if errno is still zero or contains ENOENT (which occurs
3193 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3194 451 error is used.
3195
e173618b
PH
3196PH/03 Add -lutil to the default FreeBSD LIBS setting.
3197
dd16e114
PH
3198PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3199 errors. Otherwise a message that provokes a temporary error (when other
3200 messages do not) can cause a whole host to time out.
3201
f7fd3850
PH
3202PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3203 addresses were routed directly to files or pipes from a redirect router.
3204 File deliveries just didn't batch; pipe deliveries might have suffered
3205 odd errors.
3206
d87df92c
PH
3207PH/06 A failure to get a lock for a hints database would erroneously always say
3208 "Failed to get write lock", even when it was really a read lock.
3209
7e9f683d
PH
3210PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3211 of 0600. This has been changed to use the value of the lockfile_mode
3212 option (which defaults to 0600).
3213
bfad5236
PH
3214PH/08 Applied small patch from the Sieve maintainer.
3215
01c490df
PH
3216PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3217 folder from quota calculations, a direct delivery into this folder messed
3218 up the contents of the maildirsize file. This was because the regex was
3219 used only to exclude .Trash (or whatever) when the size of the mailbox
3220 was calculated. There was no check that a delivery was happening into an
3221 excluded directory. This bug has been fixed by ignoring all quota
3222 processing for deliveries into excluded directories.
3223
d6629cdc
PH
3224PH/10 Added the maildirfolder_create_regex option to appendfile.
3225
1cce3af8 3226
214e2000
PH
3227Exim version 4.61
3228-----------------
3229
3230PH/01 The code for finding all the local interface addresses on a FreeBSD
3231 system running IPv6 was broken. This may well have applied to all BSD
3232 systems, as well as to others that have similar system calls. The broken
3233 code found IPv4 interfaces correctly, but gave incorrect values for the
3234 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3235 that it would not match correctly against @[] and not recognize the IPv6
3236 addresses as local.
3237
f9daeae0
PH
3238PH/02 The ipliteral router was not recognizing addresses of the form user@
3239 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3240
7e66e54d
PH
3241PH/03 Added disable_ipv6.
3242
c8ea1597
PH
3243PH/04 Changed $reply_address to use the raw form of the headers instead of the
3244 decoded form, because it is most often used to construct To: headers
3245 lines in autoreplies, and the decoded form may well be syntactically
3246 invalid. However, $reply_address has leading white space removed, and all
3247 newlines turned into spaces so that the autoreply transport does not
3248 grumble.
3249
911f6fde
PH
3250PH/05 If group was specified without a user on a router, and no group or user
3251 was specified on a transport, the group from the router was ignored.
3252
47ca6d6c
PH
3253PH/06 Increased the number of ACL variables to 20 of each type, and arranged
3254 for visible compile-time settings that can be used to change these
3255 numbers, for those that want even more. Backwards compatibility with old
3256 spool files has been maintained. However, going back to a previous Exim
3257 release will lost any variables that are in spool files.
3258
ed0e9820
PH
3259PH/07 Two small changes when running in the test harness: increase delay when
3260 passing a TCP/IP connection to a new process, in case the original
3261 process has to generate a bounce, and remove special handling of
3262 127.0.0.2 (sic), which is no