string.c: do not interpret '\\' before '\0' (CVE-2019-15846)
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
2600301b
HSHR
7Exim version 4.92.2
8-------------------
9
10HS/01 Handle trailing backslash gracefully. (CVE-2019-15846)
11
4c57a40e 12
cf84d126
JH
13Exim version 4.92.1
14-------------------
15
16JH/31 Avoid re-expansion in ${sort } expansion. (CVE-2019-13917, OVE-20190718-0006)
17
18
d99f54e4
JH
19Exim version 4.92
20-----------------
21
9723f966
JH
22JH/01 Remove code calling the customisable local_scan function, unless a new
23 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
24
25JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
JH
26 non-signal-safe functions being used.
27
28JH/03 Bug 2269: When presented with a received message having a stupidly large
29 number of DKIM-Signature headers, disable DKIM verification to avoid
30 a resource-consumption attack. The limit is set at twenty.
9723f966 31
ea7b1f16
JH
32JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
33 report of oldest_pass in ${authres } in consequence, and separate out
34 some descriptions of reasons for verification fail.
35
cfbb0d24
JH
36JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
37 files in the spool were present and unlocked. A queue-runner could spot
38 them, resulting in a duplicate delivery. Fix that by doing the unlock
0488984d
JH
39 after the unlink. Investigation by Tim Stewart. Take the opportunity to
40 add more error-checking on spoolfile handling while that code is being
cfbb0d24
JH
41 messed with.
42
85defcf0
PP
43PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
44 No known attacks, no CVE, this is defensive hardening.
45
1bd642c2
JH
46JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
47 a queue-runner could start a delivery while other operations were ongoing.
48 Cutthrough delivery was a common victim, resulting in duplicate delivery.
49 Found and investigated by Tim Stewart. Fix by using the open message data
50 file handle rather than opening another, and not locally closing it (which
51 releases a lock) for that case, while creating the temporary .eml format
52 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
53
2ddb4094
JH
54JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
55 $sender_verify_failure/$recipient_verify_failure to "random".
56
1613fd68
JH
57JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
58 legitimate.
59
e6057245
JH
60JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
61 Previously this would segfault.
62
7b9822bf
JH
63JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
64 segfault.
65
d8d9f930
JH
66JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
67 like zero, since the resolver should be doing this for us, But we need one
68 as a CNAME but no MX presence gets the CNAME returned; we need to check
69 that doesn't point to an MX to declare it "no MX returned" rather than
70 "error, loop". A new main option is added so the older capability of
71 following some limited number of chain links is maintained.
72
61e3f250
JH
73JH/12 Add client-ip info to non-pass iprev ${authres } lines.
74
7a8b9519
JH
75JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
76 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
77 now-deprecated earlier definitions used only specified the range up to TLS
78 1.2 (in the older-version library docs).
79
49e56fb3
JH
80JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
81
74f1a423
JH
82JH/15 Rework TLS client-side context management. Stop using a global, and
83 explicitly pass a context around. This enables future use of TLS for
84 connections to service-daemons (eg. malware scanning) while a client smtp
85 connection is using TLS; with cutthrough connections this is quite likely.
86
5054c4fd 87JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
JH
88
89JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 90
946515bf
JH
91JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
92 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
93 Previously the "utf8" would be re-prepended for every additional message.
94
8c34c611
JH
95JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
96 Previously thery were accepted, resulting in issues when attempting to
97 forward messages to a non-supporting MTA.
98
1bca4f5f
PP
99PP/02 Let -n work with printing macros too, not just options.
100
8a6b4e02
JH
101JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
102 one parent address was copied, and bogus data was used at delivery-logging
103 time. Either a crash (after delivery) or bogus log data could result.
104 Discovery and analysis by Tim Stewart.
105
0a682b6c
PP
106PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
107 Previously if the string ended mid-character, we did not insert the
108 promised '?' replacement.
109
c2c451ac
PP
110PP/04 Documentation: current string operators work on bytes, not codepoints.
111
8768d548
JH
112JH/21 Change as many as possible of the global flags into one-bit bitfields; these
113 should pack well giving a smaller memory footprint so better caching and
114 therefore performance. Group the declarations where this can't be done so
115 that the byte-sized flag variables are not interspersed among pointer
116 variables, giving a better chance of good packing by the compiler.
117
5455f548
JH
118JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
119 non-null, to avoid issues with sites running BATV. Previously reports were
120 sent with an empty envelope sender so looked like bounces.
121
25beaee4
MK
122JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
123 The ignore_error flag wasn't being returned from the filter subprocess so
124 was not set for later routers. Investigation and fix by Matthias Kurz.
125
7ea1237c 126JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 127 and a msg:complete for the whole, when a message is manually removed using
7ea1237c
MK
128 -Mrm. Developement by Matthias Kurz, hacked on by JH.
129
ebda598a
JH
130JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
131 a "Gnu special" function, asprintf() in the DB utility binary builds; I
132 hope that is portable enough.
133
570cb1bd
JH
134JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
135 requiring a known-CA anchor certificate; make it now rely entirely on the
136 TLSA as an anchor. Checking the name on the leaf cert against the name
137 on the A-record for the host is still done for TA (but not for EE mode).
138
eb58ddf5
JH
139JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
140 included in delivery lines for non-proxied connections, when compiled with
141 SUPPORT_SOCKS and running with proxy logging enabled.
142
ffbc20ed
MK
143JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
144 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
145 move the existing event to fire before the normal logging of message
146 failure so that custom logging is bracketed by normal logging.
147
4e928780
MK
148JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
149 msg:fail:internal event. Developement by Matthias Kurz.
150
75c121f0 151JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 152 far too small for todays use of crypto signatures stored there. Go all
75c121f0
JH
153 the way to the max DNS message size of 64kB, even though this might be
154 overmuch for IOT constrained device use.
155
e30f4f43
JH
156JH/31 Fix a bad use of a copy function, which could be used to pointlessly
157 copy a string over itself. The library routine is documented as not
158 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
159
a45431fa
JH
160JH/32 For main options check_spool_space and check_inode_space, where the
161 platform supports 64b integers, support more than the previous 2^31 kB
162 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
163 the previous G, M, k.
164
c0fb53b7
JH
165JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
166 $authenticated_fail_id variable on authentication failure. Previously
167 it was unset.
168
6aac3239
JH
169JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
170 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
171 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
172 GNUTLS_SEC_PARAM_MEDIUM.
173
5a2a0989
JH
174JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
175 side. Previously we would continue as if no SNI had been received.
176
de6f74f2 177JH/36 Harden the handling of string-lists. When a list consisted of a sole
b72f857f
JH
178 "<" character, which should be a list-separator specification, we walked
179 off past the nul-terimation.
180
de6f74f2
JH
181JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
182 causes) even when the retry time is not yet met. Previously they were
183 not, meaning that when (say) an account was over-quota and temp-rejecting,
184 and multiple senders' messages were queued, only one sender would get
185 notified on each configured delay_warning cycle.
186
aa6e77af 187JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 188
25fa0868
JH
189JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
190 cipher-suites, an error can be left on the stack even for a succeeding
191 accept; this results in impossible error messages when a later operation
192 actually does fail.
193
cb6bd80f
JH
194AM/01 Bug 2359: GnuTLS: repeat lowlevel read and write operations while they
195 return error codes indicating retry. Under TLS1.3 this becomes required.
196
197JH/40 Fix the feature-cache refresh for EXPERIMENTAL_PIPE_CONNECT. Previously
198 it only wrote the new authenticators, resulting in a lack of tracking of
199 peer changes of ESMTP extensions until the next cache flush.
518b70e9 200
56ac062a
JH
201JH/41 Fix the loop reading a message header line to check for integer overflow,
202 and more-often against header_maxsize. Previously a crafted message could
203 induce a crash of the recive process; now the message is cleanly rejected.
204
ae63862b
MA
205JH/42 Bug 2366: Fix the behaviour of the dkim_verify_signers option. It had
206 been totally disabled for all of 4.91. Discovery and fix by "Mad Alex".
207
9723f966 208
bb264f6b
JH
209Exim version 4.91
210-----------------
459fca58 211
c39c8870 212GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
JH
213 When redis_servers is set to a list of > 1 element, and the Redis servers
214 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
215 case of MOVED into a DEFER case instead, thus moving the query onto the
216 next server in the list. For a cluster of N elements, all N servers must
217 be defined in redis_servers.
c39c8870 218
0800ef83
GF
219GF/02 Catch and remove uninitialized value warning in exiqsumm
220 Check for existence of @ARGV before looking at $ARGV[0]
221
459fca58
JH
222JH/01 Replace the store_release() internal interface with store_newblock(),
223 which internalises the check required to safely use the old one, plus
224 the allocate and data copy operations duplicated in both (!) of the
225 extant use locations.
226
944e8b37
JH
227JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
228 modifier. This matches the restriction on the commandline.
229
bbfb5dcd
JH
230JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
231 Previously only the last row was returned.
232
a05d3e34
JH
233JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
234 we assumed that tags in the header were well-formed, and parsed the
235 element content after inspecting only the first char of the tag.
236 Assumptions at that stage could crash the receive process on malformed
237 input.
238
ce93c6d8
JH
239JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
240 While running the DKIM ACL we operate on the Permanent memory pool so that
241 variables created with "set" persist to the DATA ACL. Also (at any time)
242 DNS lookups that fail create cache records using the Permanent pool. But
243 expansions release any allocations made on the current pool - so a dnsdb
244 lookup expansion done in the DKIM ACL releases the memory used for the
245 DNS negative-cache, and bad things result. Solution is to switch to the
246 Main pool for expansions.
247 While we're in that code, add checks on the DNS cache during store_reset,
248 active in the testsuite.
249 Problem spotted, and debugging aided, by Wolfgang Breyha.
250
2577f55f
JH
251JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
252 When none of the hosts presented to a transport match an already-open
253 connection, close it and proceed with the list. Previously we would
254 queue the message. Spotted by Lena with Yahoo, probably involving
255 round-robin DNS.
256
5b6f7658
JH
257JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
258 Previously a spurious "250 OK id=" response was appended to the proper
259 failure response.
260
c11d665d
JH
261JH/08 The "support for" informational output now, which built with Content
262 Scanning support, has a line for the malware scanner interfaces compiled
263 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
264
265JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
266 by the template makefile "src/EDITME". The "STREAM" support for an older
267 ClamAV interface method is removed.
c11d665d 268
ba0e37b1
JH
269JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
270 rows affected is given instead).
271
96508de1
JH
272JH/11 The runtime Berkeley DB library version is now additionally output by
273 "exim -d -bV". Previously only the compile-time version was shown.
274
06fdb9f7
JH
275JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
276 SMTP connection. Previously, when one had more receipients than the
277 first, an abortive onward connection was made. Move to full support for
278 multiple onward connections in sequence, handling cutthrough connection
279 for all multi-message initiating connections.
280
f83a760f
JH
281JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
282 routers. Previously, a multi-recipient message would fail to match the
283 onward-connection opened for the first recipient, and cause its closure.
284
f1fed05b
JH
285JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
286 a timeout on read on a GnuTLS initiating connection, resulting in the
287 initiating connection being dropped. This mattered most when the callout
288 was marked defer_ok. Fix to keep the two timeout-detection methods
289 separate.
290
051d5efa
JH
291JH/15 Relax results from ACL control request to enable cutthrough, in
292 unsupported situations, from error to silently (except under debug)
293 ignoring. This covers use with PRDR, frozen messages, queue-only and
294 fake-reject.
295
cf3cd306
HSHR
296HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
297
744976d4
JH
298JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
299 metadata, resulting in a crash in free().
300
aab9a843 301PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 302 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 303 Broken also in d185889f4, with init system revamp.
7be14582 304
83d2a861
JH
305JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
306 Previously we abruptly closed the connection after reading a malware-
307 found indication; now we go on to read the "scan ok" response line,
308 and send a quit.
309
6741531c
JH
310JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
311 ACL. Previously, a crash would result.
312
85e03244
JH
313JH/19 Speed up macro lookups during configuration file read, by skipping non-
314 macro text after a replacement (previously it was only once per line) and
315 by skipping builtin macros when searching for an uppercase lead character.
316
c0635b6d
JH
317JH/20 DANE support moved from Experimental to mainline. The Makefile control
318 for the build is renamed.
319
b808677c
JH
320JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
321 was allocated for every new TLS startup, meaning one per message. Fix
322 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
323
6678c382
JH
324JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
325 reported the original. Fix to report (as far as possible) the ACL
326 result replacing the original.
327
dec766a1
WB
328JH/23 Fix memory leak during multi-message connections using STARTTLS under
329 OpenSSL. Certificate information is loaded for every new TLS startup,
330 and the resources needed to be freed.
331
15ae19f9
JH
332JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
333
e6532c4a
JH
334JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
335 was not propagated.
336
2556b3c6
SA
337JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
338 DATA response info to the (existing) per-recipient response info for
339 the "C=" log element. It can have useful tracking info from the
340 destination system. Patch from Simon Arlott.
341
fc8cd529
JH
342JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
343 length value. Previously this would segfault.
344
71bb51e0
HSHR
345HS/02 Support Avast multiline protoocol, this allows passing flags to
346 newer versions of the scanner.
347
e04bfa34
JH
348JH/28 Ensure that variables possibly set during message acceptance are marked
349 dead before release of memory in the daemon loop. This stops complaints
350 about them when the debug_store option is enabled. Discovered specifically
351 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
352 Do the same for the queue-runner and queue-list loops, for variables set
353 from spool message files. Do the same for the SMTP per-message loop, for
354 certain variables indirectly set in ACL operations.
e04bfa34 355
ecce6d9a
JH
356JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
357 as a multi-recipient message from a mailinglist manager). The coding had
358 an arbitrary cutoff number of characters while checking for more input;
359 enforced by writing a NUL into the buffer. This corrupted long / fast
360 input. The problem was exposed more widely when more pipelineing of SMTP
361 responses was introduced, and one Exim system was feeding another.
362 The symptom is log complaints of SMTP syntax error (NUL chars) on the
363 receiving system, and refused recipients seen by the sending system
364 (propating to people being dropped from mailing lists).
365 Discovered and pinpointed by David Carter.
366
c9cf9ac4
JH
367JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
368 replaced by the ${authresults } expansion.
369
b3b37076
JH
370JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
371
830832c9
HSHR
372HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
373 allows proper process termination in container environments.
374
f64e8b5f
JH
375JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
376 Previously the "final dot" had a newline after it; ensure it is CR,LF.
377
8f0776b5
JH
378JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
379 and "err_perm", deprecated since 4.83 when the RFC-defined words
380 "temperror" and "permerror" were introduced.
381
857eaf37
JH
382JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
383 transport-filters or DKIM-signing. The restriction was lost in the
384 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 385 Extend the restriction to also cover ARC-signing.
857eaf37 386
c85476e9
JH
387JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
388 in defer=pass mode supply a 450 to the initiator. Previously the message
389 would be spooled.
390
405074ad
PP
391PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
392 tls_require_ciphers is used as before.
393
eb445b04
HSHR
394HS/03 Malware Avast: Better match the Avast multiline protocol. Add
395 "pass_unscanned". Only tmpfails from the scanner are written to
396 the paniclog, as they may require admin intervention (permission
397 denied, license issues). Other scanner errors (like decompression
398 bombs) do not cause a paniclog entry.
ad93c40f 399
d342446f
JH
400JH/36 Fix reinitialisation of DKIM logging variable between messages.
401 Previously it was possible to log spurious information in receive log
402 lines.
403
a28050f8
JH
404JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
405 triggered odd behaviour from Outlook Express clients.
406
ddd16464
PP
407PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
408 suffix list.
409
321ef002
JH
410JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
411 since the IETF WG has not yet settled on that versus the original
412 "bare" representation.
413
3203e7ba
JH
414JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
415 Previously the millisecond value corrupted the output.
416 Fix also for syslog_pid=no and log_selector +pid, for which the pid
417 corrupted the output.
418
bbfb5dcd 419
acfc18c3
PP
420Exim version 4.90
421-----------------
422
423JH/01 Rework error string handling in TLS interface so that the caller in
424 more cases is responsible for logging. This permits library-sourced
425 string to be attached to addresses during delivery, and collapses
426 pairs of long lines into single ones.
427
856d1e16
PP
428PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
429 during configuration. Wildcards are allowed and expanded.
430
b9df1829
JH
431JH/02 Rework error string handling in DKIM to pass more info back to callers.
432 This permits better logging.
433
875512a3
JH
434JH/03 Rework the transport continued-connection mechanism: when TLS is active,
435 do not close it down and have the child transport start it up again on
436 the passed-on TCP connection. Instead, proxy the child (and any
437 subsequent ones) for TLS via a unix-domain socket channel. Logging is
438 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 439 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 440
fc3f96af
JH
441JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
442 identical IP addresses on different listening ports. Will also affect
443 "exiwhat" output.
444
98913c8e
BK
445PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
446 add noisy ifdef guards to special-case this sillyness.
447 Patch from Bernd Kuhls.
448
8d909960
JH
449JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
450 than 255 are no longer allowed.
451
7006ee24
JH
452JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
453 Disable the session-cache too, which might reduce our load. Since we
454 currrectly use a new context for every connection, both as server and
455 client, there is no benefit for these.
456 GnuTLS appears to not support tickets server-side by default (we don't
457 call gnutls_session_ticket_enable_server()) but client side is enabled
458 by default on recent versions (3.1.3 +) unless the PFS priority string
459 is used (3.2.4 +).
460
6e411084
PP
461PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
462 <https://reproducible-builds.org/specs/source-date-epoch/>.
463
4c2471ca
JH
464JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
465 the check for any unsuccessful recipients did not notice the limit, and
466 erroneously found still-pending ones.
467
4e910c01
JH
468JH/08 Pipeline CHUNKING command and data together, on kernels that support
469 MSG_MORE. Only in-clear (not on TLS connections).
470
42055a33
JH
471JH/09 Avoid using a temporary file during transport using dkim. Unless a
472 transport-filter is involved we can buffer the headers in memory for
473 creating the signature, and read the spool data file once for the
474 signature and again for transmission.
475
eeb35890
JH
476JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
477 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 478 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 479
b7d3afcf
JH
480JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
481 case where the routing stage had gathered several addresses to send to
482 a host before calling the transport for the first, we previously failed
483 to close down TLS in the old transport process before passing the TCP
484 connection to the new process. The new one sent a STARTTLS command
485 which naturally failed, giving a failed delivery and bloating the retry
486 database. Investigation and fix prototype from Wolfgang Breyha.
487
40525d07
JH
488JH/12 Fix check on SMTP command input synchronisation. Previously there were
489 false-negatives in the check that the sender had not preempted a response
490 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 491 awareness of the SMTP input buffering.
40525d07 492
f33875c3
PP
493PP/04 Add commandline_checks_require_admin option.
494 Exim drops privileges sanely, various checks such as -be aren't a
495 security problem, as long as you trust local users with access to their
496 own account. When invoked by services which pass untrusted data to
497 Exim, this might be an issue. Set this option in main configuration
498 AND make fixes to the calling application, such as using `--` to stop
499 processing options.
500
a5ffa9b4
JH
501JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
502 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
503 responses to those, into a single TLS record each way (this usually means
504 a single packet). As a side issue, smtp_enforce_sync now works on TLS
505 connections.
925ac8e4 506
6600985a
PP
507PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
508 affects you only if you're dancing at the edge of the param size limits.
509 If you are, and this message makes sense to you, then: raise the
510 configured limit or use OpenSSL 1.1. Nothing we can do for older
511 versions.
512
ac4d558b
JH
513JH/14 For the "sock" variant of the malware scanner interface, accept an empty
514 cmdline element to get the documented default one. Previously it was
515 inaccessible.
516
e69636bc
JH
517JH/15 Fix a crash in the smtp transport caused when two hosts in succession
518 are unsuable for non-message-specific reasons - eg. connection timeout,
519 banner-time rejection.
520
a843a57e
JH
521JH/16 Fix logging of delivery remote port, when specified by router, under
522 callout/hold.
523
8e041ae0
PP
524PP/06 Repair manualroute's ability to take options in any order, even if one
525 is the name of a transport.
833c70bc
PP
526 Fixes bug 2140.
527
35a04365
HSHR
528HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
529
4226691b
JH
530JH/17 Change the list-building routines interface to use the expanding-string
531 triplet model, for better allocation and copying behaviour.
532
d185889f
JH
533JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
534 Previously it was constructed the first time a possibly-matching string
535 was met in the configuration file input during startup; now it is done
536 during compilation.
537
0a6c178c
JH
538JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
539 compatible one, to avoid the (poorly documented) possibility of a config
540 file in the working directory redirecting the DB files, possibly correpting
02745400 541 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 542
fae8970d
JH
543JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
544 cache-hot. Previously, although the result was properly cached, the
545 initial verify call returned a defer.
546
ad1a76fe 547JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
548 the main verify for receipient in uncached-mode.
549
ad1a76fe
JH
550JH/22 Retire historical build files to an "unsupported" subdir. These are
551 defined as "ones for which we have no current evidence of testing".
552
135e9496
JH
553JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
554 if present. Previously it was ignored.
555
f2ed27cf
JH
556JH/24 Start using specified-initialisers in C structure init coding. This is
557 a C99 feature (it's 2017, so now considered safe).
558
7eb0e5d2
JH
559JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
560 if was a fixed-sized field and bitmask ops via macros; it is now more
561 extensible.
562
4f9f4be4
563PP/07 GitHub PR 56: Apply MariaDB build fix.
564 Patch provided by Jaroslav Škarvada.
565
dc4de9cc
PP
566PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
567 during Coverity cleanups [4.87 JH/47]
568 Diagnosis and fix provided by Michael Fischer v. Mollard.
569
ea18931d
JH
570JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
571 the right size to place the terminating semicolon on its own folded
572 line, the header hash was calculated to an incorrect value thanks to
573 the (relaxed) space the fold became.
574
0768462d 575HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
576 and confused the parent.
577
848214f7
JH
578JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
579 which could crash as a result. This could lead to undeliverable messages.
580
9e0ed81f
JH
581JH/28 Logging: "next input sent too soon" now shows where input was truncated
582 for log purposes.
583
2540f2f8
JH
584JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
585 matters on fast-turnover and PID-randomising systems, which were getting
586 out-of-order delivery.
587
e5ab0ba9
JH
588JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
589 a possibly-overlapping copy. The symptom was that "Remote host closed
590 connection in response to HELO" was logged instead of the actual 4xx
591 error for the HELO.
592
e99a3a6c
JH
593JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
594 Previously only that bufferd was discarded, resulting in SYMTP command
595 desynchronisation.
596
18067c75
JH
597JH/32 DKIM: when a message has multiple signatures matching an identity given
598 in dkim_verify_signers, run the dkim acl once for each. Previously only
599 one run was done. Bug 2189.
600
72934ba7
JH
601JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
602 "panic the current process" to "deliberately defer". The panic log is
603 still written with the problem list name; the mail and reject logs now
604 get a temp-reject line for the message that was being handled, saying
605 something like "domains check lookup or other defer". The SMTP 451
606 message is still "Temporary local problem".
607
625667b6
JH
608JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
609 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
610 freed. CVE-2017-16943.
611
612HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
613 from SMTP input. Previously it was always done; now only done for DATA
614 and not BDAT commands. CVE-2017-16944.
625667b6 615
d21bf202
JH
616JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
617 to the message (such as an overlong header line). Previously this was
618 not done and we did not exit BDAT mode. Followon from the previous item
619 though a different problem.
620
acfc18c3 621
fd047340 622Exim version 4.89
acfc18c3 623-----------------
4c57a40e 624
9427e879 625JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 626 than -2003 did; needs libidn2 in addition to libidn.
fd047340 627
7b283890
JH
628JH/02 The path option on a pipe transport is now expanded before use.
629
4c57a40e
PP
630PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
631 Patch provided by "Björn", documentation fix added too.
632
5d036699
JH
633JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
634 missing a wire-to-host endian conversion.
635
f4630439
JH
636JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
637 close after a BDAT command line could be taken as a following command,
638 giving a synch failure. Fix by only checking for synch immediately
639 before acknowledging the chunk.
640
f988ce57
JS
641PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
642 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
643 macro. Patches provided by Josh Soref.
644
bd8fbe36
JH
645JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
646 Previously we did not; the RFC seems ambiguous and VRFY is not listed
647 by IANA as a service extension. However, John Klensin suggests that we
648 should.
649
650JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
651 the dkim code may be unix-mode line endings rather than smtp wire-format
652 CRLF, so prepend a CR to any bare LF.
fd047340 653
bd8fbe36 654JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
655 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
656
bd8fbe36
JH
657JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
658 the first were themselves being wrongly included in the feed into dkim
659 processing; with most chunk sizes in use this resulted in an incorrect
660 body hash calculated value.
661
eea19017
JH
662JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
663 DKIM signature block, for verification. Although advised against by
664 standards it is specifically not ruled illegal.
665
44e6651b
JH
666JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
667
668JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
669 missing a body hash (the bh= tag).
670
671JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
672 It seems that HAProxy sends the Proxy Protocol information in clear and
673 only then does a TLS startup, so do the same.
674
675JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
676 TCP connections (such as for Spamd) unless the daemon successfully set
677 Fast Open mode on its listening sockets. This fixes breakage seen on
678 too-old kernels or those not configured for Fast Open, at the cost of
679 requiring both directions being enabled for TFO, and TFO never being used
680 by non-daemon-related Exim processes.
681
682JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
683 endings, at least on the first header line. Try to canonify any that get
684 past that check, despite the cost.
685
b6040544
JH
686JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
687 now limited to an arbitrary five deep, while parsing addresses with the
688 strip_excess_angle_brackets option enabled.
689
f700ea4d
PP
690PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
691 instead leave the unprompted TLS handshake in socket buffer for the
692 TLS library to consume.
693
da88acae
PP
694PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
695
f6ef9370
PP
696PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
697
90341c71
JH
698JH/16 Drop variables when they go out of scope. Memory management drops a whole
699 region in one operation, for speed, and this leaves assigned pointers
700 dangling. Add checks run only under the testsuite which checks all
701 variables at a store-reset and panics on a dangling pointer; add code
702 explicitly nulling out all the variables discovered. Fixes one known
703 bug: a transport crash, where a dangling pointer for $sending_ip_address
704 originally assigned in a verify callout, is re-used.
705
1ec2ab36
PP
706PP/06 Drop '.' from @INC in various Perl scripts.
707
708PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
709
710PP/08 Reduce a number of compilation warnings under clang; building with
711 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
712 should be warning-free.
713
8b2b9480
PP
714JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
715
716HS/01 Fix portability problems introduced by PP/08 for platforms where
717 realloc(NULL) is not equivalent to malloc() [SunOS et al].
718
d953610f
HSHR
719HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
720 chunk. This allows us to accept broken chunked messages. We need a more
721 general solution here.
722
7dc5f827
PP
723PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
724 already-broken messages in the queue.
725
4bb432cb
PP
726JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
727
3b1a84c8
PP
728JH/19 Fix reference counting bug in routing-generated-address tracking.
729
902fbd69 730
8d042305
JH
731Exim version 4.88
732-----------------
4c57a40e 733
9094b84b
JH
734JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
735 supports it and a size is available (ie. the sending peer gave us one).
8d042305 736
03d5892b
JH
737JH/02 The obsolete acl condition "demime" is removed (finally, after ten
738 years of being deprecated). The replacements are the ACLs
739 acl_smtp_mime and acl_not_smtp_mime.
740
4b0fe319
JH
741JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
742 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
743 or even an in-clear connection were permitted. Now, if the host lookup
744 was dnssec and dane was requested then the host is only used if the
745 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
746 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
747 if one fails this test.
748 This means that a poorly-configured remote DNS will make it incommunicado;
749 but it protects against a DNS-interception attack on it.
750
789f8a4f
JH
751JH/04 Bug 1810: make continued-use of an open smtp transport connection
752 non-noisy when a race steals the message being considered.
753
23bb6982 754JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 755 self-signed certificate for inbound TLS connections.
23bb6982 756
0bd1b1ed 757JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 758 in rewrites and routers.
0bd1b1ed 759
20b9a2dc
JH
760JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
761 and logged a warning sing 4.83; now they are a configuration file error.
762
05392bbc
JH
763JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
764 (lacking @domain). Apply the same qualification processing as RCPT.
765
1a6230a3
JH
766JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
767
cfab9d68
JH
768JH/10 Support ${sha256:} applied to a string (as well as the previous
769 certificate).
770
98c82a3d
JH
771JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
772 a cutthrough deliver is pending, as we always want to make a connection.
773 This also avoids re-routing the message when later placing the cutthrough
774 connection after a verify cache hit.
775 Do not update it with the verify result either.
776
777JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
778 when routing results in more than one destination address.
779
ae8386f0
JH
780JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
781 signing (which inhibits the cutthrough capability). Previously only
782 the presence of an option was tested; now an expansion evaluating as
783 empty is permissible (obviously it should depend only on data available
784 when the cutthrough connection is made).
785
0d9fa8c0
JH
786JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
787 the relevant preceding SMTP command did not note the pipelining mode.
788
3581f321
JH
789JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
790 Previously they were not counted.
791
ef3a1a30
JH
792JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
793 as one having no matching records. Previously we deferred the message
794 that needed the lookup.
795
4c04137d 796JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
797 distinguished as "(=".
798
1435d4b2
JH
799JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
800 for missing MX records. Previously it only worked for missing A records.
801
eea0defe
JB
802JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
803
804JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
805 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 806
4c04137d 807JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
808 even for a "none" policy. Patch from Tony Meyer.
809
1c788856
JH
810JH/22 Fix continued use of a connection for further deliveries. If a port was
811 specified by a router, it must also match for the delivery to be
812 compatible.
813
e3b1f624
JH
814JH/23 Bug 1874: fix continued use of a connection for further deliveries.
815 When one of the recipients of a message was unsuitable for the connection
816 (has no matching addresses), we lost track of needing to mark it
817 deferred. As a result mail would be lost.
818
a57ce043
JH
819JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
820
f59aaaaa 821JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
822 takes up less space and should be simpler to maintain. Merge the ACL
823 condition decode tables also, with similar effect.
d7bed771 824
d1f9fb42
JH
825JH/26 Fix problem with one_time used on a redirect router which returned the
826 parent address unchanged. A retry would see the parent address marked as
827 delivered, so not attempt the (identical) child. As a result mail would
828 be lost.
829
92b0827a
JH
830JH/27 Fix a possible security hole, wherein a process operating with the Exim
831 UID can gain a root shell. Credit to http://www.halfdog.net/ for
832 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
833 itself :(
834
ddf1b11a
JH
835JH/28 Enable {spool,log} filesystem space and inode checks as default.
836 Main config options check_{log,spool}_{inodes,space} are now
837 100 inodes, 10MB unless set otherwise in the configuration.
838
3cc3f762
JH
839JH/29 Fix the connection_reject log selector to apply to the connect ACL.
840 Previously it only applied to the main-section connection policy
841 options.
842
ae5afa61
JH
843JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
844
317e40ac
PP
845PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
846 by me. Added RFC7919 DH primes as an alternative.
847
8b0fb68e
PP
848PP/02 Unbreak build via pkg-config with new hash support when crypto headers
849 are not in the system include path.
850
ad7fc6eb 851JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 852 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
853 Exim did stdio operations after fclose. This was exposed by a recent
854 change which nulled out the file handle after the fclose.
ad7fc6eb 855
ee5b1e28
JH
856JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
857 signed directly by the cert-signing cert, rather than an intermediate
858 OCSP-signing cert. This is the model used by LetsEncrypt.
859
5ddc9771
JH
860JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
861
8d73599f
JH
862HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
863 an incoming connection.
864
446415f5
HSHR
865HS/02 Bug 1802: Do not half-close the connection after sending a request
866 to rspamd.
867
8e53a4fc
HSHR
868HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
869 fallback to "prime256v1".
8d042305 870
87cb4a16 871JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 872 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
873
874
0d9b78be
JH
875Exim version 4.87
876-----------------
4c57a40e 877
82d14d6a
JH
878JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
879 and 3.4.4 - once the server is enabled to respond to an OCSP request
880 it does even when not requested, resulting in a stapling non-aware
881 client dropping the TLS connection.
0d9b78be 882
6c6d6e48
TF
883TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
884 support variable-length bit vectors. No functional change.
885
ac881e27
TF
886TF/02 Improve the consistency of logging incoming and outgoing interfaces.
887 The I= interface field on outgoing lines is now after the H= remote
888 host field, same as incoming lines. There is a separate
889 outgoing_interface log selector which allows you to disable the
890 outgoing I= field.
891
c8899c20
JH
892JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
893 If not running log_selector +smtp_connection the mainlog would be held
894 open indefinitely after a "too many connections" event, including to a
895 deleted file after a log rotate. Leave the per net connection logging
896 leaving it open for efficiency as that will be quickly detected by the
897 check on the next write.
898
f1b81d81
HSHR
899HS/01 Bug 1671: Fix post transport crash.
900 Processing the wait-<transport> messages could crash the delivery
901 process if the message IDs didn't exist for some reason. When
902 using 'split_spool_directory=yes' the construction of the spool
903 file name failed already, exposing the same netto behaviour.
904
f38917cc
JH
905JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
906 mime_regex ACL conditions.
907
895fbaf2
JH
908JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
909 to DSN fail messages (bounces): remote IP, remote greeting, remote response
910 to HELO, local diagnostic string.
911
805bb5c3
JH
912JH/05 Downgrade message for a TLS-certificate-based authentication fail from
913 log line to debug. Even when configured with a tls authenticator many
914 client connections are expected to not authenticate in this way, so
915 an authenticate fail is not an error.
916
56c2a7be
HSHR
917HS/02 Add the Exim version string to the process info. This way exiwhat
918 gives some more detail about the running daemon.
919
4c04137d 920JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
921 matter for fast-change records such as DNSBLs.
922
6f6dedcc
JH
923JH/07 Bug 1678: Always record an interface option value, if set, as part of a
924 retry record, even if constant. There may be multiple transports with
925 different interface settings and the retry behaviour needs to be kept
926 distinct.
927
0f557e90
JH
928JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
929
930JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
931
ec0eb1a3
JH
932JH/10 Bug 840: fix log_defer_output option of pipe transport
933
41e93589
JH
934JH/11 Bug 830: use same host for all RCPTS of a message, even under
935 hosts_randomize. This matters a lot when combined with mua_wrapper.
936
98b98887 937JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
938 ${quote_pgsql:<string>} operator.
939
98b98887
JH
940JH/13 Bug 1708: avoid misaligned access in cached lookup.
941
858e91c2
JH
942JH/14 Change header file name for freeradius-client. Relevant if compiling
943 with Radius support; from the Gentoo tree and checked under Fedora.
944
945JH/15 Bug 1712: Introduce $prdr_requested flag variable
946
6ff55e50
JH
947JH/16 Bug 1714: Permit an empty string as expansion result for transport
948 option transport_filter, meaning no filtering.
949
3b957582
JB
950JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
951
23f3dc67
JH
952JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
953 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 954 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
955 If a server certificate is not supplied (via tls_certificate) an error is
956 logged, and clients will find TLS connections fail on startup. Presumably
957 they will retry in-clear.
958 Packagers of Exim are strongly encouraged to create a server certificate
959 at installation time.
960
240c288f
JH
961HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
962 with the $config_file variable.
963
5ef5dd52
JB
964JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
965 in transport context, after the attempt, and per-recipient. The latter type
966 is per host attempted. The event data is the error message, and the errno
967 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 968 and the trailing two digits of the smtp 4xx response.
5ef5dd52 969
e161710d
GF
970GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
971 to write to mainlog (or rejectlog, paniclog) in the window between file
972 creation and permissions/ownership being changed. Particularly affects
973 installations where exicyclog is run as root, rather than exim user;
974 result is that the running daemon panics and dies.
975
a159f203
JH
976JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
977
7f06582c
JH
978JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
979 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
980 "pri" and "weight". Note that the previous implicit priority given by the
981 list order is no longer honoured.
982
4c04137d 983JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
984 for DKIM processing.
985
f0989ec0
JH
986JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
987 by defining SUPPORT_SOCKS.
74f150bf 988
cee5f132
JH
989JH/26 Move PROXY support from Experimental to mainline, enabled for a build
990 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
991 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
992 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 993
8c5d388a
JH
994JH/27 Move Internationalisation support from Experimental to mainline, enabled
995 for a build by defining SUPPORT_I18N
996
2d8d625b
JH
997JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
998 of the query string, and make ${quote_redis:} do that quoting.
999
0cbf2b82
JH
1000JH/29 Move Events support from Experimental to mainline, enabled by default
1001 and removable for a build by defining DISABLE_EVENT.
1002
f2f2c91b
JH
1003JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
1004
ce325893
JH
1005JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
1006 cached by the daemon.
1007
de78e2d5
JH
1008JH/32 Move Redis support from Experimental to mainline, enabled for a build
1009 by defining LOOKUP_REDIS. The libhiredis library is required.
1010
379ba7d0
JH
1011JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
1012 keys are given for lookup.
1013
f444c2c7
JH
1014JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
1015 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
1016 only supported when built with TLS support. The PolarSSL SHA routines
1017 are still used when the TLS library is too old for convenient support.
f444c2c7 1018
a57b6200
JH
1019JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
1020 openssl_options), for security. OpenSSL forces this from version 1.1.0
1021 server-side so match that on older versions.
1022
07c73177 1023JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1024 allocation for $value could be released as the expansion processing
07c73177 1025 concluded, but leaving the global pointer active for it.
fa01e4f8 1026
4f6ae5c3
JH
1027JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1028 and to use the domains and local_parts ACL conditions.
1029
1bc460a6
JH
1030JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1031 incorrectly not doubled on cutthrough transmission, hence seen as a
1032 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1033 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1034 via the normal store-and-forward channel. This could result in duplicates
1035 received - but deduplicating mailstores were liable to retain only the
1036 initial truncated version.
1037
ab9152ff 1038JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1039
67e87fcf
JH
1040JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1041
ab9152ff
JH
1042JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1043 we're in there, support oversigning also; bug 1309.
1044
af483912
JH
1045JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1046
bc3c7bb7 1047HS/04 Add support for keep_environment and add_environment options.
df3def24 1048
13559da6
JH
1049JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1050 either intentional arithmetic overflow during PRNG, or testing config-
1051 induced overflows.
1052
59eaad2b
JH
1053JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1054 delivery resulted in actual delivery. Cancel cutthrough before DATA
1055 stage.
1056
f9334a28
JH
1057JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1058 rejects a recipient: pass the reject to the originator.
1059
dc8091e7
JH
1060JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1061 Many were false-positives and ignorable, but it's worth fixing the
1062 former class.
1063
dfe7d917
JH
1064JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1065 for the new environment-manipulation done at startup. Move the routines
1066 from being local to tls.c to being global via the os.c file.
1067
93cc2d6e
JH
1068JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1069 an extract embedded as result-arg for a map, the first arg for extract
1070 is unavailable so we cannot tell if this is a numbered or keyed
1071 extraction. Accept either.
1072
13559da6 1073
9c695f6d
JH
1074Exim version 4.86
1075-----------------
4c57a40e 1076
9c695f6d
JH
1077JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1078 expanded.
1079
506900af
JH
1080JH/02 The smtp transport option "multi_domain" is now expanded.
1081
ad07e9ad
JH
1082JH/03 The smtp transport now requests PRDR by default, if the server offers
1083 it.
1084
01a4a5c5 1085JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1086 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1087 can be used to disable this per-host. The build option
1088 EXPERIMENTAL_CERTNAMES is withdrawn.
1089
cb1d7830 1090JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1091 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1092 For GnuTLS, only version 3.0.20 or later.
1093
610ff438 1094JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1095 (but not required) by default. The verification status is now logged by
1096 default, for both outbound TLS and client-certificate supplying inbound
1097 TLS connections
610ff438 1098
f926e272
JH
1099JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1100 sites use this now.
1101
50dc7409
JH
1102JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1103 Status Notification (bounce) messages are now MIME format per RFC 3464.
1104 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1105 under the control of the dsn_advertise_hosts option, and routers may
1106 have a dsn_lasthop option.
1107
0f0c8159
JH
1108JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1109 default, modifiable by a malware= option. The list separator for
23763898 1110 the options can now be changed in the usual way. Bug 68.
4e71661f 1111
1ad6489e
JH
1112JH/10 The smtp_receive_timeout main option is now expanded before use.
1113
aeaf5db3
JH
1114JH/11 The incoming_interface log option now also enables logging of the
1115 local interface on delivery outgoing connections.
1116
5032d1cf
JH
1117JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1118 if the interface and destination host and port all match.
1119
7e8360e6
JH
1120JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1121 /defer_ok option.
1122
c5f280e2
AL
1123JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1124 Patch from Andrew Lewis.
1125
fd4d8871 1126JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1127 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1128 modifiers per server. Patch originally by <rommer@active.by>.
1129
1130JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1131 and remote servers. Remote servers can be IPv6 addresses, and
1132 specify a port-range.
fd4d8871 1133
23763898
JH
1134JH/17 Bug 68: The spamd_address main option now supports an optional
1135 timeout value per server.
1136
2ad78978
JH
1137JH/18 Bug 1581: Router and transport options headers_add/remove can
1138 now have the list separator specified.
1139
8a512ed5 1140JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1141 option values.
8a512ed5 1142
82c0c8ea 1143JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1144 under OpenSSL.
1145
cc00f4af
JH
1146JH/21 Support for the A6 type of dns record is withdrawn.
1147
82c0c8ea
JH
1148JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1149 rather than the verbs used.
1150
b980ed83
JH
1151JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1152 from 255 to 1024 chars.
1153
6c9ed72e
JH
1154JH/24 Verification callouts now attempt to use TLS by default.
1155
cfab9d68 1156HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1157 are generic router options now. The defaults didn't change.
50dc7409 1158
f846c8f5
JH
1159JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1160 Original patch from Alexander Shikoff, worked over by JH.
1161
fd4c285c
HSHR
1162HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1163 files if ZCAT_COMMAND is not executable.
1164
4c04137d 1165JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1166
d2a2c69b
JH
1167JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1168
8241d8dd
JH
1169JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1170 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1171 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1172 (and we were inconsistent anyway for A-only vs AAAA+A).
1173
1f12df4d
JH
1174JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1175
1f155f8e
JH
1176JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1177 when evaluating $sender_host_dnssec.
1178
1705dd20
JH
1179JH/31 Check the HELO verification lookup for DNSSEC, adding new
1180 $sender_helo_dnssec variable.
1181
038597d2
PP
1182JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1183
474f71bf
JH
1184JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1185
7137ca4b
JH
1186JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1187
dcb1095c
JH
1188JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1189 documented as working, but never had. Support all but $spam_report.
1190
2f460950
JH
1191JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1192 added for tls authenticator.
1193
2f680c0c
HSHR
1194HS/03 Add perl_taintmode main config option
1195
9c695f6d 1196
e449c3b0
TL
1197Exim version 4.85
1198-----------------
4c57a40e 1199
e449c3b0
TL
1200TL/01 When running the test suite, the README says that variables such as
1201 no_msglog_check are global and can be placed anywhere in a specific
1202 test's script, however it was observed that placement needed to be near
1203 the beginning for it to behave that way. Changed the runtest perl
1204 script to read through the entire script once to detect and set these
1205 variables, reset to the beginning of the script, and then run through
1206 the script parsing/test process like normal.
1207
ac20058f
TL
1208TL/02 The BSD's have an arc4random API. One of the functions to induce
1209 adding randomness was arc4random_stir(), but it has been removed in
1210 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1211 function when detected.
1212
a9b8ec8b
JH
1213JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1214 cause callback expansion.
1215
6286d7c4
TL
1216TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1217 syntax errors in an expansion can be treated as a string instead of
1218 logging or causing an error, due to the internal use of bool_lax
1219 instead of bool when processing it.
1220
0f06b4f2 1221JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1222 server certificates when making smtp deliveries.
1223
be36e572
JH
1224JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1225
ac4ef9bd
JH
1226JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1227
0eb51736
TL
1228TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1229
c713ca4b
TL
1230TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1231 Merged patch from Sebastian Wiedenroth.
e449c3b0 1232
bd21a787
WB
1233JH/05 Fix results-pipe from transport process. Several recipients, combined
1234 with certificate use, exposed issues where response data items split
1235 over buffer boundaries were not parsed properly. This eventually
1236 resulted in duplicates being sent. This issue only became common enough
4c04137d 1237 to notice due to the introduction of connection certificate information,
bd21a787
WB
1238 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1239
8bc732e8
JH
1240JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1241 size buffer was used, resulting in syntax errors when an expansion
1242 exceeded it.
1243
a7fec7a7
JH
1244JH/07 Add support for directories of certificates when compiled with a GnuTLS
1245 version 3.3.6 or later.
1246
4c04137d 1247JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1248 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1249 both become "event_action", the variables become $event_name, $event_data
aec45841 1250 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1251 routers, transports and related events. The tls:cert event is now also
1252 raised for inbound connections, if the main configuration event_action
1253 option is defined.
774ef2d7 1254
eca4debb
TL
1255TL/06 In test suite, disable OCSP for old versions of openssl which contained
1256 early OCSP support, but no stapling (appears to be less than 1.0.0).
1257
8d692470
JH
1258JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1259 server certificate names available under the smtp transport option
1260 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1261 matches.
1262
e9477a08
JH
1263JH/10 Time-related extraction expansions from certificates now use the main
1264 option "timezone" setting for output formatting, and are consistent
1265 between OpenSSL and GnuTLS compilations. Bug 1541.
1266
ad4c5ff9
JH
1267JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1268 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1269
1270JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1271 include certificate info, eximon was claiming there were spoolfile
1272 syntax errors.
1273
3394b36a 1274JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1275
1276JH/14 Log delivery-related information more consistently, using the sequence
1277 "H=<name> [<ip>]" wherever possible.
1278
3394b36a
TL
1279TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1280 are problematic for Debian distribution, omit them from the release
1281 tarball.
1282
ad4c5ff9
JH
1283JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1284
4c04137d 1285JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1286 Bug 1561.
1287
1288JH/17 Fix a null-indirection in certextract expansions when a nondefault
1289 output list separator was used.
1290
8bc732e8 1291
1f0ebb98
TL
1292Exim version 4.84
1293-----------------
09728d20
TL
1294TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1295 checkers that were complaining about end of non-void function with no
1296 return.
1f0ebb98 1297
a612424f 1298JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1299 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1300
1301JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1302
1303TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1304 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1305
1f0ebb98 1306
c0e56233
TF
1307Exim version 4.83
1308-----------------
1309
1310TF/01 Correctly close the server side of TLS when forking for delivery.
1311
1312 When a message was received over SMTP with TLS, Exim failed to clear up
1313 the incoming connection properly after forking off the child process to
1314 deliver the message. In some situations the subsequent outgoing
1315 delivery connection happened to have the same fd number as the incoming
1316 connection previously had. Exim would try to use TLS and fail, logging
1317 a "Bad file descriptor" error.
1318
7245734e
TF
1319TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1320 utilities have not been installed.
1321
fd5dad68
JH
1322JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1323 temporary space as the ACL may create new global variables.
1324
5428a946
TL
1325TL/01 LDAP support uses per connection or global context settings, depending
1326 upon the detected version of the libraries at build time.
1327
a3c86431
TL
1328TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1329 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1330 were a direct connection from the outside internet. PPv2 support was
1331 updated based on HAProxy spec change in May 2014.
a3c86431 1332
aa26e137
JH
1333JH/02 Add ${listextract {number}{list}{success}{fail}}.
1334
5a1b8443
WB
1335TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1336 Properly escape header and check for NULL return.
1337
72c9e342
PP
1338PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1339 not dns_use_dnssec.
1340
76f44207
WB
1341JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1342
770747fd
MFM
1343TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1344 characters in header names, implemented as a verify condition.
1345 Contributed by Michael Fischer v. Mollard.
1346
8ddef691 1347TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1348 results permerror and temperror. Previous values are deprecated but
1349 still accepted. In a future release, err_perm and err_temp will be
1350 completely removed, which will be a backward incompatibility if the
1351 ACL tests for either of these two old results. Patch contributed by
8ddef691 1352 user bes-internal on the mailing list.
c0e56233 1353
b9c2e32f
AR
1354JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1355
e45a1c37
JH
1356JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1357 selectors, in both main and reject logs.
1358
67d81c10
JH
1359JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1360 failed delivery.
1361
b1f8e4f8
JH
1362JH/07 Add malware type "sock" for talking to simple daemon.
1363
511a6c14 1364JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1365
1366JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1367 routers/transports under cutthrough routing.
214042d2 1368
51c7471d
JH
1369JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1370 numbers. Touch up "bool" conditional to keep the same definition.
1371
3695be34
TL
1372TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1373
1e06383a
TL
1374JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1375
76146973
JH
1376JH/12 Expand items in router/transport headers_add or headers_remove lists
1377 individually rather than the list as a whole. Bug 1452.
1378
1379 Required for reasonable handling of multiple headers_ options when
1380 they may be empty; requires that headers_remove items with embedded
1381 colons must have them doubled (or the list-separator changed).
1382
8c8b8274
TL
1383TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1384 view the policy declared in the DMARC record. Currently, $dmarc_status
1385 is a combined value of both the record presence and the result of the
1386 analysis.
b1f8e4f8 1387
35aba663
JH
1388JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1389
8c51eead 1390JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1391 dnslookup router and the smtp transport (applying to the forward
1392 lookup).
8c51eead 1393
deae092e
HS
1394TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1395 of ldap servers used for a specific lookup. Patch provided by Heiko
1396 Schlichting.
35aba663 1397
fd3b6a4a 1398JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1399 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1400
8d91c6dc
LT
1401TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1402 Patch submitted by Lars Timman.
1403
2b4a568d
JH
1404JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1405
d2af03f4
HS
1406TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1407 Requires trusted mode and valid format message id, aborts otherwise.
1408 Patch contributed by Heiko Schlichting.
1409
9d1c15ef
JH
1410JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1411 certextract with support for various fields. Bug 1358.
1412
44662487
JH
1413JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1414 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1415 hosts_request_ocsp.
1416
ed3bba5f 1417JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1418 operate on certificate variables to give certificate fingerprints
9ef9101c 1419 Also new ${sha256:cert_variable}.
44662487 1420
8ccd00b1
JH
1421JH/23 The PRDR feature is moved from being Experimental into the mainline.
1422
8ded8589
TL
1423TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1424 Christian Aistleitner.
1425
f2de3a33
JH
1426JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1427
6eb02f88
TL
1428TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1429 file. Patch from Wolfgang Breyha.
1430
00bff6f6
JH
1431JH/25 Expand the coverage of the delivery $host and $host_address to
1432 client authenticators run in verify callout. Bug 1476.
1433
071c51f7
JH
1434JH/26 Port service names are now accepted for tls_on_connect_ports, to
1435 align with daemon_smtp_ports. Bug 72.
1436
a6d4c44e
TF
1437TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1438 support and error reporting did not work properly.
1439
3ae173e7
ACK
1440TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1441 and is readable. Patch from Andrew Colin Kissa.
1442
c13d09b8
TL
1443TL/14 Enhance documentation of ${run expansion and how it parses the
1444 commandline after expansion, particularly in the case when an
1445 unquoted variable expansion results in an empty value.
1446
0df4ab80
JH
1447JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1448
66be95e0
PP
1449PP/02 Fix internal collision of T_APL on systems which support RFC3123
1450 by renaming away from it. Addresses GH issue 15, reported by
1451 Jasper Wallace.
1452
1bd0d12b
JH
1453JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1454
0de7239e
TL
1455TL/15 SECURITY: prevent double expansion in math comparison functions
1456 (can expand unsanitized data). Not remotely exploitable.
1457 CVE-2014-2972
1458
fd3b6a4a 1459
2c422e6f 1460Exim version 4.82
98a90c36
PP
1461-----------------
1462
1463PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1464
12f69989
PP
1465PP/02 Make -n do something, by making it not do something.
1466 When combined with -bP, the name of an option is not output.
1467
54c90be1
PP
1468PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1469 by GnuTLS.
1470
1f4a55da
PP
1471PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1472 $sender_host_name and config options to manage this, and basic check
1473 routines.
1474
13363eba 1475PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1476
66645890 1477PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1478 (Only plugin which currently uses this is kerberos4, which nobody should
1479 be using, but we should make it available and other future plugins might
1480 conceivably use it, even though it would break NAT; stuff *should* be
1481 using channel bindings instead).
66645890 1482
a3fb9793 1483PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1484 name; added for Sendmail compatibility; requires admin caller.
1485 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1486 just ignore it); requires trusted caller.
a3fb9793 1487 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1488 Bugzilla 1117.
a3fb9793 1489
d27f98fe 1490TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1491
6822b909
TL
1492TL/02 Add +smtp_confirmation as a default logging option.
1493
e7568d51
TL
1494TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1495 Patch by Magnus Holmgren from 2007-02-20.
1496
ae0e32ee 1497TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1498 Bugzilla 1283 - Spec typo.
97f42f10 1499 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1500
1501TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1502
e2658fff
TL
1503TL/06 Add Experimental DMARC support using libopendmarc libraries.
1504
83712b39
TL
1505TL/07 Fix an out of order global option causing a segfault. Reported to dev
1506 mailing list by by Dmitry Isaikin.
1507
976b7e9f
JH
1508JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1509
be4a1376
JH
1510JH/02 Support "G" suffix to numbers in ${if comparisons.
1511
ec4b68e5
PP
1512PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1513
d7148a07
NM
1514NM/01 Bugzilla 1197 - Spec typo
1515 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1516
585121e2 1517JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1518
2519e60d
TL
1519PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1520 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1521 function.
a5f239e4 1522
13d08c90
PP
1523PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1524 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1525
bef3ea7f
JH
1526JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1527 "acl {{name}{arg}...}", and optional args on acl condition
1528 "acl = name arg..."
a5f239e4 1529
846726c5
JH
1530JH/05 Permit multiple router/transport headers_add/remove lines.
1531
3a796370
JH
1532JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1533
ea722490 1534JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1535 Performance patch from Paul Fisher. Bugzilla 1262.
1536
b1b05573
JH
1537JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1538 Bugzilla 884.
1539
362145b5
JH
1540JH/09 Add $headers_added variable, with content from use of ACL modifier
1541 add_header (but not yet added to the message). Bugzilla 199.
1542
3c0a92dc
JH
1543JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1544 Pulled from Bugzilla 817 by Wolfgang Breyha.
1545
6d7c6175
PP
1546PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1547 CVE-2012-5671
e78e6ecf 1548 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1549
6f123593
JH
1550JH/11 Add A= logging on delivery lines, and a client_set_id option on
1551 authenticators.
1552
c8e2fc1e
JH
1553JH/12 Add optional authenticated_sender logging to A= and a log_selector
1554 for control.
1555
005ac57f
PP
1556PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1557
3f1df0e3
PP
1558PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1559 advertise SMTP AUTH mechanism to us, instead of a generic
1560 protocol violation error. Also, make Exim more robust to bad
1561 data from the Dovecot auth socket.
1562
67bd1ab3
TF
1563TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1564
1565 When a queue runner is handling a message, Exim first routes the
1566 recipient addresses, during which it prunes them based on the retry
1567 hints database. After that it attempts to deliver the message to
1568 any remaining recipients. It then updates the hints database using
1569 the retry rules.
1570
1571 So if a recipient address works intermittently, it can get repeatedly
1572 deferred at routing time. The retry hints record remains fresh so the
1573 address never reaches the final cutoff time.
1574
1575 This is a fairly common occurrence when a user is bumping up against
1576 their storage quota. Exim had some logic in its local delivery code
1577 to deal with this. However it did not apply to per-recipient defers
1578 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1579
1ddeb334
TF
1580 This change adds a proper retry rule check during routing so that the
1581 final cutoff time is checked against the message's age. We only do
1582 this check if there is an address retry record and there is not a
1583 domain retry record; this implies that previous attempts to handle
1584 the address had the retry_use_local_parts option turned on. We use
1585 this as an approximation for the destination being like a local
1586 delivery, as in LMTP.
67bd1ab3
TF
1587
1588 I suspect this new check makes the old local delivery cutoff check
1589 redundant, but I have not verified this so I left the code in place.
1590
326cdc37
TF
1591TF/02 Correct gecos expansion when From: is a prefix of the username.
1592
1593 Test 0254 submits a message to Exim with the header
1594
1595 Resent-From: f
1596
1597 When I ran the test suite under the user fanf2, Exim expanded
1598 the header to contain my full name, whereas it should have added
1599 a Resent-Sender: header. It erroneously treats any prefix of the
1600 username as equal to the username.
1601
1602 This change corrects that bug.
1603
f62514b3
GF
1604GF/01 DCC debug and logging tidyup
1605 Error conditions log to paniclog rather than rejectlog.
1606 Debug lines prefixed by "DCC: " to remove any ambiguity.
1607
eb505532
TF
1608TF/03 Avoid unnecessary rebuilds of lookup-related code.
1609
14c7b357
PP
1610PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1611 Bug spotted by Jeremy Harris; was flawed since initial commit.
1612 Would have resulted in OCSP responses post-SNI triggering an Exim
1613 NULL dereference and crash.
1614
94eaf700
PP
1615JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1616
6f5a440a
PP
1617PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1618 Bug detection, analysis and fix by Samuel Thibault.
1619 Bugzilla 1331, Debian bug #698092.
1620
514ee161
SC
1621SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1622
fd98a5c6
JH
1623JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1624 Server implementation by Todd Lyons, client by JH.
1625 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1626 config variable "prdr_enable" controls whether the server
1627 advertises the facility. If the client requests PRDR a new
1628 acl_data_smtp_prdr ACL is called once for each recipient, after
1629 the body content is received and before the acl_smtp_data ACL.
4c04137d 1630 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1631 on the smtp transport, and the server advertisement.
1632 Default client logging of deliveries and rejections involving
1633 PRDR are flagged with the string "PRDR".
1634
035c7f1e
PP
1635PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1636 fclose(). Diagnosis by Todd Lyons.
1637
ff284120
PP
1638PP/17 Update configure.default to handle IPv6 localhost better.
1639 Patch by Alain Williams (plus minor tweaks).
1640 Bugzilla 880.
1641
26e72755
PP
1642PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1643 This is now consistent with GnuTLS, and is now documented: the
1644 previous undocumented portable approach to treating the option as
1645 unset was to force an expansion failure. That still works, and
1646 an empty string is now equivalent.
1647
0fbd9bff
PP
1648PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1649 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1650 not performing validation itself.
1651
700d22f3
PP
1652PP/20 Added force_command boolean option to pipe transport.
1653 Patch from Nick Koston, of cPanel Inc.
1654
fcc8e047
JH
1655JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1656 Bugzilla 321, 823.
1657
4c04137d 1658TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1659
8c020188
PP
1660PP/21 Fix eximon continuous updating with timestamped log-files.
1661 Broken in a format-string cleanup in 4.80, missed when I repaired the
1662 other false fix of the same issue.
1663 Report and fix from Heiko Schlichting.
1664 Bugzilla 1363.
1665
d13cdd30
PP
1666PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1667 Report from Prashanth Katuri.
1668
e2fbf4a2
PP
1669PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1670 It's SecureTransport, so affects any MacOS clients which use the
1671 system-integrated TLS libraries, including email clients.
1672
f4c1088b
PP
1673PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1674 using a MIME ACL for non-SMTP local injection.
1675 Report and assistance in diagnosis by Warren Baker.
1676
c5c2182f
PP
1677TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1678
73431ca9
JH
1679JH/16 Fix comparisons for 64b. Bugzilla 1385.
1680
2d07a215
TL
1681TL/09 Add expansion variable $authenticated_fail_id to keep track of
1682 last id that failed so it may be referenced in subsequent ACL's.
1683
a30a8861
TL
1684TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1685 Alexander Miroch.
1686
33382dd9
TL
1687TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1688 ldap library initialization, allowing self-signed CA's to be
1689 used. Also properly sets require_cert option later in code by
1690 using NULL (global ldap config) instead of ldap handle (per
1691 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1692
046172e6
TL
1693TL/12 Enhanced documentation in the ratelimit.pl script provided in
1694 the src/util/ subdirectory.
1695
581d7bee 1696TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1697 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1698 EXPERIMENTAL_TPDA.
1699
1700TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1701 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1702 redis_servers = needs to be configured which will be used by the redis
1703 lookup. Patch from Warren Baker, of The Packet Hub.
1704
237b2cf2
TL
1705TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1706
9fc5a352
TL
1707TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1708 hostname or reverse DNS when processing a host list. Used suggestions
1709 from multiple comments on this bug.
1a7b746d 1710
b10e4ec2
TL
1711TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1712
e2cebd74
TL
1713TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1714 Missed a few lines, added it to make the runtest require no keyboard
1715 interaction.
1716
1717TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1718 contains upper case chars. Make router use caseful_local_part.
1719
2519e60d
TL
1720TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1721 support when GnuTLS has been built with p11-kit.
1722
e78e6ecf 1723
4263f395
PP
1724Exim version 4.80.1
1725-------------------
1726
1727PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1728 CVE-2012-5671
2c422e6f 1729 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1730
ea722490 1731
b1770b6e 1732Exim version 4.80
0599f9cf
PP
1733-----------------
1734
1735PP/01 Handle short writes when writing local log-files.
1736 In practice, only affects FreeBSD (8 onwards).
1737 Bugzilla 1053, with thanks to Dmitry Isaikin.
1738
23c7e742
NM
1739NM/01 Bugzilla 949 - Documentation tweak
1740
b322aac8
NM
1741NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1742 improved.
1743
4a891427
NM
1744NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1745
c1e794ba 1746PP/02 Implemented gsasl authenticator.
b322aac8 1747
97753960
PP
1748PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1749
1750PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1751 `pkg-config foo` for cflags/libs.
1752
df6303fa
PP
1753PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1754 with rest of GSASL and with heimdal_gssapi.
1755
7e6a8985
PP
1756PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1757 `pkg-config foo` for cflags/libs for the TLS implementation.
1758
f1e05cc7 1759PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1760 properties get this fed in as external SSF. A number of robustness
1761 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1762
4c287009
PP
1763PP/08 cyrus_sasl server now expands the server_realm option.
1764
b98bb9ac
PP
1765PP/09 Bugzilla 1214 - Log authentication information in reject log.
1766 Patch by Jeremy Harris.
1767
4a6a987a
PP
1768PP/10 Added dbmjz lookup type.
1769
c45dd180 1770PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1771
7db8d074
PP
1772PP/12 MAIL args handles TAB as well as SP, for better interop with
1773 non-compliant senders.
1774 Analysis and variant patch by Todd Lyons.
1775
eae0036b 1776NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1777 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1778 Patch from Dirk Mueller <dmueller@suse.com>
1779
dec5017e
PP
1780PP/13 tls_peerdn now print-escaped for spool files.
1781 Observed some $tls_peerdn in wild which contained \n, which resulted
1782 in spool file corruption.
1783
c80c5570
PP
1784PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1785 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1786 or write after TLS renegotiation, which otherwise led to messages
1787 "Got SSL error 2".
1788
076b11e2
PP
1789TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1790 as a tracking header (ie: a signed header comes before the signature).
1791 Patch from Wolfgang Breyha.
1792
5407bfff
JH
1793JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1794 comma-sep list; embedded commas doubled.
1795
9e45c72b
PP
1796JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1797
e74376d8
PP
1798PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1799 diagnostics.
1800 Report and patch from Dmitry Banschikov.
1801
4c04137d 1802PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1803 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1804 failures. We appear to now support TLS1.1+ with Exim.
1805
7be682ca
PP
1806PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1807 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1808 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1809 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1810
ef840681
PP
1811PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1812 NULL dereference. Report and patch from Alun Jones.
1813
5bfb4cdf
PP
1814PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1815 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1816 Not seeing resolver debug output on NetBSD, but suspect this is a
1817 resolver implementation change.
1818
c6e95d22
PP
1819PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1820 Left warnings. Added "eximon gdb" invocation mode.
1821
9cbad13b
PP
1822PP/21 Defaulting "accept_8bitmime" to true, not false.
1823
9ee44efb
PP
1824PP/22 Added -bw for inetd wait mode support.
1825
6a6084f8
PP
1826PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1827 locate the relevant includes and libraries. Made this the default.
1828
12dd53c7
PP
1829PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1830 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1831
9e45c72b 1832JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1833 This may cause build issues on older platforms.
1834
17c76198
PP
1835PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1836 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1837 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1838 Added SNI support via GnuTLS too.
af3498d6 1839 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1840
53947857 1841PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1842
eae0036b 1843PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1844 Applied second patch from Janne, implementing suggestion to default
1845 multiple-strings-in-record handling to match SPF spec.
eae0036b 1846
9e45c72b 1847JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1848
7390e768
PP
1849PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1850 read-only, out of scope).
1851 Patch from Wolfgang Breyha, report from Stuart Northfield.
1852
08488c86
PP
1853PP/29 Fix three issues highlighted by clang analyser static analysis.
1854 Only crash-plausible issue would require the Cambridge-specific
1855 iplookup router and a misconfiguration.
1856 Report from Marcin Mirosław.
1857
6475bd82
PP
1858PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1859
81f91683
PP
1860PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1861 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1862 As part of this, removing so much warning spew let me fix some minor
1863 real issues in debug logging.
1864
5779e6aa
PP
1865PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1866 assignment on my part. Fixed.
1867
3375e053
PP
1868PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1869 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1870 Janne Snabb (who went above and beyond: thank you).
1871
1872PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1873 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1874 relatively easy to get wrong. Should also expose TLS library linkage
1875 problems.
3375e053 1876
9d26b8c0
PP
1877PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1878 64-bit ${eval} (JH/03).
1879
57eb9e91 1880PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1881 GNU libc to support some of the 64-bit stuff, should not lead to
1882 conflicts. Defined before os.h is pulled in, so if a given platform
1883 needs to override this, it can.
1884
16880d1a
PP
1885PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1886 protection layer was required, which is not implemented.
1887 Bugzilla 1254, patch from Wolfgang Breyha.
1888
a799883d
PP
1889PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1890 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1891 tls_dhparam take prime identifiers. Also unbreak combination of
1892 OpenSSL+DH_params+TLSSNI.
1893
3ecab157 1894PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1895
0599f9cf 1896
867fcbf5
PP
1897Exim version 4.77
1898-----------------
1899
1900PP/01 Solaris build fix for Oracle's LDAP libraries.
1901 Bugzilla 1109, patch from Stephen Usher.
1902
f1a29782
TF
1903TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1904
ab42bd23
TK
1905TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1906 whitespace trailer
867fcbf5 1907
0ca0cf52
TF
1908TF/02 Fix a couple more cases where we did not log the error message
1909 when unlink() failed. See also change 4.74-TF/03.
1910
921b12ca
TF
1911TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1912 lock up or crash if it happened to be inside a call to libc when it
1913 got a SIGUSR1 from exiwhat.
1914
1915 The SIGUSR1 handler appends the current process status to the process
1916 log which is later printed by exiwhat. It used to use the general
1917 purpose logging code to do this, but several functions it calls are
1918 not safe for signals.
1919
1920 The new output code in the SIGUSR1 handler is specific to the process
1921 log, and simple enough that it's easy to inspect for signal safety.
1922 Removing some special cases also simplifies the general logging code.
1923 Removing the spurious timestamps from the process log simplifies
1924 exiwhat.
1925
c99ce5c9
TF
1926TF/04 Improved ratelimit ACL condition.
1927
1928 The /noupdate option has been deprecated in favour of /readonly which
1929 has clearer semantics. The /leaky, /strict, and /readonly update modes
1930 are mutually exclusive. The update mode is no longer included in the
1931 database key; it just determines when the database is updated. (This
4c04137d 1932 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1933
1934 Exim now checks that the per_* options are used with an update mode that
1935 makes sense for the current ACL. For example, when Exim is processing a
1936 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1937 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1938 must specify per_mail/readonly. If you omit the update mode it defaults to
1939 /leaky where that makes sense (as before) or /readonly where required.
1940
1941 The /noupdate option is now undocumented but still supported for
1942 backwards compatibility. It is equivalent to /readonly except that in
1943 ACLs where /readonly is required you may specify /leaky/noupdate or
1944 /strict/noupdate which are treated the same as /readonly.
1945
1946 A useful new feature is the /count= option. This is a generalization
1947 of the per_byte option, so that you can measure the throughput of other
1948 aggregate values. For example, the per_byte option is now equivalent
1949 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1950
1951 The per_rcpt option has been generalized using the /count= mechanism
1952 (though it's more complicated than the per_byte equivalence). When it is
1953 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1954 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1955 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1956 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1957 Note that using per_rcpt with a non-readonly update mode in more than
1958 one ACL will cause the recipients to be double-counted. (The per_mail
1959 and per_byte options don't have this problem.)
1960
1961 The handling of very low rates has changed slightly. If the computed rate
1962 is less than the event's count (usually one) then this event is the first
1963 after a long gap. In this case the rate is set to the same as this event's
1964 count, so that the first message of a spam run is counted properly.
1965
1966 The major new feature is a mechanism for counting the rate of unique
1967 events. The new per_addr option counts the number of different
1968 recipients that someone has sent messages to in the last time period. It
1969 behaves like per_rcpt if all the recipient addresses are different, but
1970 duplicate recipient addresses do not increase the measured rate. Like
1971 the /count= option this is a general mechanism, so the per_addr option
1972 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1973 example, measure the rate that a client uses different sender addresses
1974 with the options per_mail/unique=$sender_address. There are further
1975 details in the main documentation.
1976
3634fc25
TF
1977TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1978
792e8a19
TF
1979TF/06 Removed a few PCRE remnants.
1980
5901f0ab
TF
1981TF/07 Automatically extract Exim's version number from tags in the git
1982 repository when doing development or release builds.
1983
7f2a2a43
PP
1984PP/02 Raise smtp_cmd_buffer_size to 16kB.
1985 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1986
061b7ebd
PP
1987PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1988 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1989 Bugzilla 97.
1990
e12f8c32
PP
1991PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1992
9e949f00 1993PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1994 Bugzilla 1078. Patch from John Horne.
1995
1996PP/06 Stop make process more reliably on build failure.
1997 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1998
555ae6af 1999PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
2000 Bugzilla 1089. Patch from Heiko Schlittermann.
2001
2002PP/08 Handle ${run} returning more data than OS pipe buffer size.
2003 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 2004
6f7fe114
PP
2005PP/09 Handle IPv6 addresses with SPF.
2006 Bugzilla 860. Patch from Wolfgang Breyha.
2007
c566dd90
PP
2008PP/10 GnuTLS: support TLS 1.2 & 1.1.
2009 Bugzilla 1156.
89f897c3
PP
2010 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
2011 Bugzilla 1095.
c566dd90 2012
d6cc7c78 2013PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
2014 New compile-time build option, EXPAND_LISTMATCH_RHS.
2015 New expansion conditions, "inlist", "inlisti".
2016
0d0e4455
PP
2017PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
2018
3399bb60 2019PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
2020
2021PP/14 fix log_write() format string regression from TF/03.
2022 Bugzilla 1152. Patch from Dmitry Isaikin.
2023
0ca0cf52 2024
10906672
PP
2025Exim version 4.76
2026-----------------
2027
2028PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2029
754a0503
PP
2030PP/02 Harmonised TLS library version reporting; only show if debugging.
2031 Layout now matches that introduced for other libraries in 4.74 PP/03.
2032
c0c7b2da
PP
2033PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2034
e97d1f08
PP
2035PP/04 New "dns_use_edns0" global option.
2036
084c1d8c
PP
2037PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2038 Bugzilla 1098.
2039
4e7ee012
PP
2040PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2041 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2042
c8d52a00
PP
2043TK/01 Updated PolarSSL code to 0.14.2.
2044 Bugzilla 1097. Patch from Andreas Metzler.
2045
54e7ce4a
PP
2046PP/07 Catch divide-by-zero in ${eval:...}.
2047 Fixes bugzilla 1102.
2048
5ee6f336
PP
2049PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2050 Bugzilla 1104.
2051
c8d52a00 2052TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2053 format-string attack -- SECURITY: remote arbitrary code execution.
2054
2055TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2056 time unintentionally subject to list matching rules, letting the header
2057 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2058 arbitrary string expansion). This allowed for information disclosure.
2059
2060PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2061 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2062
10906672 2063
aa097c4c
NM
2064Exim version 4.75
2065-----------------
2066
4c04137d 2067NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2068 Bugzilla 1073
2069
7f3d9eff
TF
2070TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2071 This fixes portability to compilers other than gcc, notably
2072 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2073
159f52d2
TF
2074TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2075 makefiles for portability to HP-UX and POSIX correctness.
2076
0cc9542a
PP
2077PP/01 Permit LOOKUP_foo enabling on the make command-line.
2078 Also via indented variable definition in the Makefile.
2079 (Debugging by Oliver Heesakkers).
2080
f7274286
PP
2081PP/02 Restore caching of spamd results with expanded spamd_address.
2082 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2083
7b797365
PP
2084PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2085 Improves build reliability. Fix from: Frank Elsner
2086
caacae52
NM
2087NM/02 Fix wide character breakage in the rfc2047 coding
2088 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2089
09dcaba9
NM
2090NM/03 Allow underscore in dnslist lookups
2091 Fixes bug 1026. Patch from Graeme Fowler
2092
bc19a55b
PP
2093PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2094 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2095
bd4c9759
NM
2096NM/04 Fixed exiqgrep to cope with mailq missing size issue
2097 Fixes bug 943.
2098
b72aab72
PP
2099PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2100 is logged, to avoid truncation. Patch from John Horne.
2101
2fe76745
PP
2102PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2103 Patch from Jakob Hirsch.
2104
76aa570c
PP
2105PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2106 SQL string expansion failure details.
2107 Patch from Andrey Oktyabrski.
2108
f1e5fef5
PP
2109PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2110 Patch from Simon Arlott.
2111
4d805ee9
PP
2112PP/09 New lookups functionality failed to compile on old gcc which rejects
2113 extern declarations in function scope.
2114 Patch from Oliver Fleischmann
2115
cd59ab18
PP
2116PP/10 Use sig_atomic_t for flags set from signal handlers.
2117 Check getgroups() return and improve debugging.
2118 Fixed developed for diagnosis in bug 927 (which turned out to be
2119 a kernel bug).
2120
332f5cf3
PP
2121PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2122 Patch from Mark Zealey.
2123
29cfeb94
PP
2124PP/12 Bugzilla 1056: Improved spamd server selection.
2125 Patch from Mark Zealey.
2126
660242ad
PP
2127PP/13 Bugzilla 1086: Deal with maildir quota file races.
2128 Based on patch from Heiko Schlittermann.
2129
bc4bc4c5
PP
2130PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2131 Patch from Uwe Doering, sign-off by Michael Haardt.
2132
2e64baa9
NM
2133NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2134 variable declaration deep within a block. Bug and patch from
2135 Dennis Davis.
2136
4c04137d 2137PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2138
6bac1a9a
PP
2139PP/16 Make DISABLE_DKIM build knob functional.
2140
552193f0
NM
2141NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2142 Patch by Simon Arlott
baeee2c1 2143
1b587e48
TF
2144TF/03 Fix valgrind.h portability to C89 compilers that do not support
2145 variable argument macros. Our copy now differs from upstream.
2146
aa097c4c 2147
8c07b69f
TF
2148Exim version 4.74
2149-----------------
2150
2151TF/01 Failure to get a lock on a hints database can have serious
2152 consequences so log it to the panic log.
2153
c0ea85ab
TF
2154TF/02 Log LMTP confirmation messages in the same way as SMTP,
2155 controlled using the smtp_confirmation log selector.
2156
0761d44e
TF
2157TF/03 Include the error message when we fail to unlink a spool file.
2158
0a349494
PP
2159DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2160 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2161 for maintaining out-of-tree patches for some time.
2162
2163PP/01 Bugzilla 139: Documentation and portability issues.
2164 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2165 Handle per-OS dynamic-module compilation flags.
2166
fea24b2e
PP
2167PP/02 Let /dev/null have normal permissions.
2168 The 4.73 fixes were a little too stringent and complained about the
2169 permissions on /dev/null. Exempt it from some checks.
2170 Reported by Andreas M. Kirchwitz.
2171
6545de78
PP
2172PP/03 Report version information for many libraries, including
2173 Exim version information for dynamically loaded libraries. Created
2174 version.h, now support a version extension string for distributors
2175 who patch heavily. Dynamic module ABI change.
2176
1670ef10
PP
2177PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2178 privilege escalation vulnerability whereby the Exim run-time user
2179 can cause root to append content of the attacker's choosing to
2180 arbitrary files.
2181
c0886197
PP
2182PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2183 (Wolfgang Breyha)
2184
b7487bce
PP
2185PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2186 If dropping privileges for untrusted macros, we disabled normal logging
2187 on the basis that it would fail; for the Exim run-time user, this is not
2188 the case, and it resulted in successful deliveries going unlogged.
2189 Fixed. Reported by Andreas Metzler.
2190
8c07b69f 2191
97fd1e48 2192Exim version 4.73
ed7f7860 2193-----------------
97fd1e48
PP
2194
2195PP/01 Date: & Message-Id: revert to normally being appended to a message,
2196 only prepend for the Resent-* case. Fixes regression introduced in
2197 Exim 4.70 by NM/22 for Bugzilla 607.
2198
6901c596
PP
2199PP/02 Include check_rfc2047_length in configure.default because we're seeing
2200 increasing numbers of administrators be bitten by this.
2201
a8c8d6b5
JJ
2202JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2203
77bb000f
PP
2204PP/03 Bugzilla 994: added openssl_options main configuration option.
2205
a29e5231
PP
2206PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2207
ec5a0394 2208PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2209
55c75993
PP
2210PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2211
453a6645 2212PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2213 without a peer certificate, leading to a segfault because of an
2214 assumption that peers always have certificates. Be a little more
453a6645
PP
2215 paranoid. Problem reported by Martin Tscholak.
2216
8544e77a
PP
2217PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2218 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2219 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2220 CL also introduces -bmalware, various -d+acl logging additions and
2221 more caution in buffer sizes.
8544e77a 2222
83e029d5
PP
2223PP/09 Implemented reverse_ip expansion operator.
2224
ed7f7860
PP
2225PP/10 Bugzilla 937: provide a "debug" ACL control.
2226
7d9f747b
PP
2227PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2228
4b2241d2
PP
2229PP/12 Bugzilla 973: Implement --version.
2230
10385c15
PP
2231PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2232
dbc4b90d
PP
2233PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2234
532be449
PP
2235PP/15 Bugzilla 816: support multiple condition rules on Routers.
2236
6a8de854 2237PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2238 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2239 ignore trailing whitespace.
6a8de854 2240
5dc43717
JJ
2241JJ/02 prevent non-panic DKIM error from being sent to paniclog
2242
2243JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2244 "exim" to be used
55c75993 2245
3346ab01
PP
2246PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2247 Notification from Dr Andrew Aitchison.
2248
491fab4c
PP
2249PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2250 ExtendedDetectionInfo response format.
2251 Notification from John Horne.
2252
13eb9497
PP
2253PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2254 compatible.
2255
2256PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2257 XSL and documented dependency on system catalogs, with examples of how
2258 it normally works.
2259
7f36d675
DW
2260DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2261 access.
2262
c1d94452
DW
2263DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2264 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2265 configuration file which is writeable by the Exim user or group.
2266
e2f5dc15
DW
2267DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2268 of configuration files to cover files specified with the -C option if
2269 they are going to be used with root privileges, not just the default
2270 configuration file.
2271
cd25e41d
DW
2272DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2273 option (effectively making it always true).
2274
261dc43e
DW
2275DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2276 files to be used while preserving root privileges.
2277
fa32850b
DW
2278DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2279 that rogue child processes cannot use them.
2280
79d4bc3d
PP
2281PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2282 run-time user, instead of root.
2283
43236f35 2284PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2285 Exim run-time user without dropping privileges.
2286
fb08281f
DW
2287DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2288 result string, instead of calling string_vformat() twice with the same
2289 arguments.
3346ab01 2290
74935b98
DW
2291DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2292 for other users. Others should always drop root privileges if they use
2293 -C on the command line, even for a whitelisted configure file.
2294
90b6341f
DW
2295DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2296
57730b52
ML
2297NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2298
66581d1e 2299
465e92cf
JJ
2300Exim version 4.72
2301-----------------
2302
453a6645
PP
2303JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2304 $data_path, and $header_path variables; fixed documentation bugs and
2305 typos
465e92cf 2306
453a6645
PP
2307JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2308 exipick to access non-standard spools, including the "frozen" queue
2309 (Finput)
edae0343 2310
9bd3e22c
NM
2311NM/01 Bugzilla 965: Support mysql stored procedures.
2312 Patch from Alain Williams
2313
bb576ff7
NM
2314NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2315
5a1a5845
NM
2316NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2317 Patch from Andreas Metzler
2318
981a9fad
NM
2319NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2320 Patch from Kirill Miazine
2321
7fc497ee
NM
2322NM/05 Bugzilla 671: Added umask to procmail example.
2323
1a41defa
JJ
2324JJ/03 installed exipick 20100323.0, fixing doc bug
2325
a466095c 2326NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2327 directory. Notification and patch from Dan Rosenberg.
a466095c 2328
94a6bd0b
NM
2329TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2330
2331TK/02 Improve log output when DKIM signing operation fails.
2332
2333MH/01 Treat the transport option dkim_domain as a colon separated
2334 list, not as a single string, and sign the message with each element,
2335 omitting multiple occurences of the same signer.
2336
c1b141a8
NM
2337NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2338 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2339
b26eacf1 2340NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2341 Patch by Simon Arlott
2342
179c5980 2343PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2344 MBX locking. Notification from Dan Rosenberg.
179c5980 2345
9bd3e22c 2346
7c6d71af
NM
2347Exim version 4.71
2348-----------------
2349
7d9f747b 2350TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2351
f013fb92
NM
2352NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2353
0eb8eedd
NM
2354NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2355
663ee6d9
NM
2356NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2357
177ebd9b
NM
2358NM/04 Bugzilla 915: Flag broken perl installation during build.
2359
7c6d71af 2360
210f147e
NM
2361Exim version 4.70
2362-----------------
2363
cdd3bb85 2364TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2365 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2366
2367TK/02 Write list of recipients to X-Envelope-Sender header when building
2368 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2369 Hirsch).
cdd3bb85
TK
2370
2371TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2372 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2373 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2374
2375TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2376 by Mark Daniel Reidel <mr@df.eu>.
2377
210f147e
NM
2378NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2379 When building exim an external PCRE library is now needed -
2380 PCRE is a system library on the majority of modern systems.
2381 See entry on PCRE_LIBS in EDITME file.
2382
deafd5b3
NM
2383NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2384 conversation. Added nologin parameter to request.
7d9f747b 2385 Patch contributed by Kirill Miazine.
deafd5b3 2386
089793a4
TF
2387TF/01 Do not log submission mode rewrites if they do not change the address.
2388
5f16ca82
TF
2389TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2390
dae9d94e 2391NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2392 log files in place. Contributed by Roberto Lima.
dae9d94e 2393
7d9f747b 2394NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2395
06864c44
TF
2396TF/03 Bugzilla 615: When checking the local_parts router precondition
2397 after a local_part_suffix or local_part_prefix option, Exim now
2398 does not use the address's named list lookup cache, since this
2399 contains cached lookups for the whole local part.
2400
65a7d8c3 2401NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2402 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2403
23510047 2404TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2405
7d9f747b 2406NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2407
7d8eec3a 2408NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2409 Patch provided by Jan Srzednicki.
6c588e74 2410
89dec7b6
TF
2411TF/05 Leading white space used to be stripped from $spam_report which
2412 wrecked the formatting. Now it is preserved.
5f28a6e8 2413
a99de90c
TF
2414TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2415 that they are available at delivery time.
2416
e2803e40
TF
2417TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2418
7199e1ee
TF
2419TF/08 TLS error reporting now respects the incoming_interface and
2420 incoming_port log selectors.
2421
e276e04b
TF
2422TF/09 Produce a more useful error message if an SMTP transport's hosts
2423 setting expands to an empty string.
2424
ce552449 2425NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2426 Patch provided by Phil Pennock.
ce552449 2427
e765a0f1 2428NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2429 Patch provided by Richard Godbee.
e765a0f1 2430
4f054c63 2431NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2432 acl_smtp_notquit, added index entry.
4f054c63 2433
7d9f747b
PP
2434NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2435 Patch provided by Eugene Bujak.
24c929a2 2436
7d9f747b
PP
2437NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2438 accept(). Patch provided by Maxim Dounin.
cf73943b 2439
b52bc06e 2440NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2441 Patch provided by Phil Pennock.
b52bc06e 2442
447de4b0
NM
2443NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2444
4c69d561 2445NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2446 Patch provided by Brad "anomie" Jorsch.
4c69d561 2447
d5c39246 2448NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2449 Patch provided by Dean Brooks.
9b989985 2450
0b23848a
TK
2451TK/05 Add native DKIM support (does not depend on external libraries).
2452
8f3414a1 2453NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2454 Patch provided by Graeme Fowler.
e2aacdfd 2455
fb6f955d
NM
2456NM/16 Bugzilla 851: Documentation example syntax fix.
2457
2458NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2459
7d9f747b
PP
2460NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2461 lsearch.
dbb0bf41 2462
7d9f747b
PP
2463NM/19 Bugzilla 745: TLS version reporting.
2464 Patch provided by Phil Pennock.
f3766eb5 2465
7d9f747b
PP
2466NM/20 Bugzilla 167: bool: condition support.
2467 Patch provided by Phil Pennock.
36f12725 2468
7d9f747b
PP
2469NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2470 clients. Patch provided by Phil Pennock.
e6060e2c 2471
7d9f747b
PP
2472NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2473 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2474
7d9f747b
PP
2475NM/23 Bugzilla 687: Fix misparses in eximstats.
2476 Patch provided by Heiko Schlittermann.
d5c13d66 2477
7d9f747b
PP
2478NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2479 Patch provided by Heiko Schlittermann.
b2335c0b 2480
7d9f747b 2481NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2482 plus update to original patch.
f4cd9433 2483
7d9f747b 2484NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2485
7d9f747b
PP
2486NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2487 Patch provided by David Brownlee.
8dc71ab3 2488
7d9f747b 2489NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2490
7d9f747b 2491NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2492
7d9f747b 2493NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2494
7d9f747b 2495NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2496
17792b53 2497NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2498 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2499
7d9f747b
PP
2500NM/33 Bugzilla 898: Transport filter timeout fix.
2501 Patch by Todd Rinaldo.
52383f8f 2502
91576cec 2503NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2504 Patch by Serge Demonchaux.
5ca6d115 2505
7d9f747b
PP
2506NM/35 Bugzilla 39: Base64 decode bug fixes.
2507 Patch by Jakob Hirsch.
baee9eee 2508
7d9f747b 2509NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2510
7d9f747b 2511NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2512
7d9f747b 2513NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2514
7d9f747b 2515NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2516
deafd5b3 2517
47db1125
NM
2518Exim version 4.69
2519-----------------
2520
4b3504d0
TK
2521TK/01 Add preliminary DKIM support. Currently requires a forked version of
2522 ALT-N's libdkim that I have put here:
2523 http://duncanthrax.net/exim-experimental/
2524
2525 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2526 were called 'true' and it seems that C99 defines that as a reserved
2527 keyword to be used with 'bool' variable types. That means you could
2528 not include C99-style headers which use bools without triggering
2529 build errors in sieve.c.
2530
81ea09ca
NM
2531NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2532 as mailq or other aliases. Changed the --help handling significantly
2533 to do whats expected. exim_usage() emits usage/help information.
2534
f13cddcb
SC
2535SC/01 Added the -bylocaldomain option to eximstats.
2536
7d9f747b 2537NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2538
7d9f747b 2539NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2540
7d9f747b 2541NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2542
2543
eb4c0de6
PH
2544Exim version 4.68
2545-----------------
2546
2547PH/01 Another patch from the Sieve maintainer.
2548
6a3bceb1
PH
2549PH/02 When an IPv6 address is converted to a string for single-key lookup
2550 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2551 dots are used instead of colons so that keys in lsearch files need not
2552 contain colons. This was done some time before quoting was made available
2553 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2554 (notated using the quote facility) so as to distinguish them from IPv4
2555 keys. This meant that lookups for IP addresses in host lists did not work
2556 for iplsearch lookups.
2557
2558 This has been fixed by arranging for IPv6 addresses to be expressed with
2559 colons if the lookup type is iplsearch. This is not incompatible, because
2560 previously such lookups could never work.
2561
4c04137d 2562 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2563 ordinary lsearch keys. However, making the change in all cases is
2564 incompatible and would probably break a number of configurations.
2565
2e30fa9d
TK
2566TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2567 version.
2568
0806a9c5
MH
2569MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2570 conversion specification without a maximum field width, thereby enabling
2571 a rogue spamd server to cause a buffer overflow. While nobody in their
2572 right mind would setup Exim to query an untrusted spamd server, an
2573 attacker that gains access to a server running spamd could potentially
2574 exploit this vulnerability to run arbitrary code as the Exim user.
2575
ae276964
TK
2576TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2577 $primary_hostname instead of what libspf2 thinks the hosts name is.
2578
0f2cbd1b
MH
2579MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2580 a directory entry by the name of the lookup key. Previously, if a
2581 symlink pointed to a non-existing file or a file in a directory that
2582 Exim lacked permissions to read, a lookup for a key matching that
2583 symlink would fail. Now it is enough that a matching directory entry
2584 exists, symlink or not. (Bugzilla 503.)
2585
2b85bce7
PH
2586PH/03 The body_linecount and body_zerocount variables are now exported in the
2587 local_scan API.
2588
93655c46
PH
2589PH/04 Added the $dnslist_matched variable.
2590
6c512171
PH
2591PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2592 This means they are set thereafter only if the connection becomes
2593 encrypted.
2594
2595PH/06 Added the client_condition to authenticators so that some can be skipped
2596 by clients under certain conditions.
2597
aa6dc513
PH
2598PH/07 The error message for a badly-placed control=no_multiline_responses left
2599 "_responses" off the end of the name.
2600
a96603a0
PH
2601PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2602
8f240103
PH
2603PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2604 (without spaces) instead of just copying the configuration text.
2605
2606PH/10 Added the /noupdate option to the ratelimit ACL condition.
2607
d677b2f2
PH
2608PH/11 Added $max_received_linelength.
2609
d52120f2
PH
2610PH/12 Added +ignore_defer and +include_defer to host lists.
2611
64f2600a
PH
2612PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2613 way in which PCRE > 7.0 is built.
2614
8669f003
PH
2615PH/14 Implemented queue_only_load_latch.
2616
a4dc33a8
PH
2617PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2618 MAIL command. The effect was to mangle the value on 64-bit systems.
2619
d6a60c0f
PH
2620PH/16 Another patch from the Sieve maintainer.
2621
8f128379
PH
2622PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2623
8932dffe
PH
2624PH/18 If a system quota error occurred while trying to create the file for
2625 a maildir delivery, the message "Mailbox is full" was not appended to the
2626 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2627 only to a quota excession during the actual writing of the file.
d6a60c0f 2628
ddea74fa 2629PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2630 characters?) which causes problems in log lines. The DN values are now
2631 passed through string_printing() before being added to log lines.
2632
ddea74fa 2633PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2634 and InterBase are left for another time.)
2635
ddea74fa
PH
2636PH/21 Added message_body_newlines option.
2637
ce9f225c
PH
2638PH/22 Guard against possible overflow in moan_check_errorcopy().
2639
19897d52
PH
2640PH/23 POSIX allows open() to be a macro; guard against that.
2641
bc64a74d
PH
2642PH/24 If the recipient of an error message contained an @ in the local part
2643 (suitably quoted, of course), incorrect values were put in $domain and
2644 $local_part during the evaluation of errors_copy.
2645
eb4c0de6 2646
b4ed4da0
PH
2647Exim version 4.67
2648-----------------
2649
22ad45c9
MH
2650MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2651 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2652 Jan Srzednicki.
2653
b4ed4da0
PH
2654PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2655 issue a MAIL command.
2656
431b7361
PH
2657PH/02 In an ACL statement such as
2658
2659 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2660
2661 if a client was not listed at all, or was listed with a value other than
2662 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2663 the condition was not true (as it should be), so access was not denied.
2664 The bug was that the ! inversion was incorrectly passed on to the second
2665 item. This has been fixed.
2666
2667PH/03 Added additional dnslists conditions == and =& which are different from
2668 = and & when the dns lookup returns more than one IP address.
2669
83da1223
PH
2670PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2671 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2672
54fc8428
PH
2673PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2674 FSYNC, which compiles an option called disable_fsync that allows for
2675 bypassing fsync(). The documentation is heavily laced with warnings.
2676
34c5e8dd
SC
2677SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2678
bbe15da8
PH
2679PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2680 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2681 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2682 including adding "make clean"; (3) Added -fPIC when compiling the test
2683 dynamically loaded module, to get rid of a warning.
2684
0e8a9471
MH
2685MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2686 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2687 = 0s. The bug is otherwise harmless.
2688
f0872424
PH
2689PH/07 There was a bug in the dovecot authenticator such that the value of
2690 $auth1 could be overwritten, and so not correctly preserved, after a
2691 successful authentication. This usually meant that the value preserved by
2692 the server_setid option was incorrect.
2693
b01dd148
PH
2694PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2695
6bf342e1
PH
2696PH/09 Installed PCRE release 7.0.
2697
273f34d0
PH
2698PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2699 run for batched SMTP input. It is now run at the start of every message
2700 in the batch. While fixing this I discovered that the process information
2701 (output by running exiwhat) was not always getting set for -bs and -bS
2702 input. This is fixed, and it now also says "batched" for BSMTP.
2703
cf8b11a5
PH
2704PH/11 Added control=no_pipelining.
2705
41c7c167
PH
2706PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2707 patch, slightly modified), and move the expansion of helo_data till after
2708 the connection is made in the smtp transport (so it can use these
2709 values).
2710
9c57cbc0
PH
2711PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2712
f3f065bb
PH
2713PH/14 Added log_selector = +pid.
2714
047bdd8c
PH
2715PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2716
0ce9abe6
PH
2717PH/16 Add ${if forany and ${if forall.
2718
0e22dfd1
PH
2719PH/17 Added dsn_from option to vary the From: line in DSNs.
2720
4c590bd1
PH
2721PH/18 Flush SMTP output before performing a callout, unless control =
2722 no_callout_flush is set.
2723
09945f1e
PH
2724PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2725 was true (the default) a successful delivery failed to delete the retry
2726 item, thus causing premature timeout of the address. The bug is now
2727 fixed.
2728
c51b8e75
PH
2729PH/20 Added hosts_avoid_pipelining to the smtp transport.
2730
e28326d8 2731PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2732 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2733 other ACL rejections are.
2734
75b1493f
PH
2735PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2736 with slight modification.
2737
7c5214ec
PH
2738PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2739 draft, changing the syntax and factoring some duplicate code".
2740
4311097e
PH
2741PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2742 for deliveries of the second and subsequent messages over the same SMTP
2743 connection.
2744
29f89cad
PH
2745PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2746 ${reduce, with only minor "tidies".
2747
5e687460
SC
2748SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2749
c3611384
PH
2750PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2751 expansion side effects.
2752
5a11a7b4
PH
2753PH/27 When a message times out after an over-quota error from an Exim-imposed
2754 quota, the bounce message says "mailbox is full". This message was not
2755 being given when it was a system quota that was exceeded. It now should
2756 be the same.
2757
0e20aff9
MH
2758MH/03 Made $recipients available in local_scan(). local_scan() already has
2759 better access to the recipient list through recipients_list[], but
2760 $recipients can be useful in postmaster-provided expansion strings.
2761
ca86f471
PH
2762PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2763 in the case of a MAIL command with additional options following the
2764 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2765 were accidentally chopped off.
2766
a14e5636
PH
2767PH/29 SMTP synchronization checks are implemented when a command is read -
2768 there is a check that no more input is waiting when there shouldn't be
2769 any. However, for some commands, a delay in an ACL can mean that it is
2770 some time before the response is written. In this time, more input might
2771 arrive, invalidly. So now there are extra checks after an ACL has run for
2772 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2773 pipelining has not been advertised.
2774
ec95d1a6
PH
2775PH/30 MH's patch to allow iscntrl() characters to be list separators.
2776
42855d71
PH
2777PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2778 returned in the SMTP response when smtp_return_error_details was false.
2779 This has been fixed.
2780
57c2c631
PH
2781PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2782 instead of the C I/O that was originally supplied, because problems were
2783 reported on Solaris.
2784
58c01c94
PH
2785PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2786 Exim which did not show up earlier: it was assuming that a call to
2787 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2788 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2789 was a macro that became an assignment, so it seemed to work. This has
2790 changed to a proper function call with a void return, hence the compile
2791 error. Exim's code has been fixed.
2792
dee5a20a
PH
2793PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2794 cpus.
2795
d2ee6114
PH
2796PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2797
b2d5182b
PH
2798PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2799
79749a79
PH
2800PH/37 If a message is not accepted after it has had an id assigned (e.g.
2801 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2802 "Completed" line in the log. When some messages of this type were
2803 selected by exigrep, they were listed as "not completed". Others were
2804 picked up by some special patterns. I have improved the selection
2805 criteria to be more general.
79749a79 2806
c456d9bb
PH
2807PH/38 The host_find_failed option in the manualroute router can now be set
2808 to "ignore", to completely ignore a host whose IP address cannot be
2809 found. If all hosts are ignored, the behaviour is controlled by the new
2810 host_all_ignored option.
2811
cd9868ec
PH
2812PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2813 homing or because of multiple MX records with /mx) generated more than
2814 one IP address, and the following item turned out to be the local host,
2815 all the secondary addresses of the first item were incorrectly removed
2816 from the list, along with the local host and any following hosts (which
2817 is what is supposed to happen).
2818
ebeaf996
PH
2819PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2820 whoever called Exim into the -H file. In the case of the daemon it was
2821 behaving confusingly. When first started, it used values for whoever
2822 started the daemon, but after a SIGHUP it used the Exim user (because it
2823 calls itself on a restart). I have changed the code so that it now always
2824 uses the Exim user.
2825
2679d413
PH
2826PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2827 message are rejected with the same error (e.g. no authentication or bad
2828 sender address), and a DATA command is nevertheless sent (as can happen
2829 with PIPELINING or a stupid MUA), the error message that was given to the
2830 RCPT commands is included in the rejection of the DATA command. This is
2831 intended to be helpful for MUAs that show only the final error to their
2832 users.
2833
84024b72
PH
2834PH/42 Another patch from the Sieve maintainer.
2835
8005d38e
SC
2836SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2837 Eximstats - Fixed some broken HTML links and added missing column headers
2838 (Jez Hancock).
2839 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2840 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2841
3298c6c6
SC
2842SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2843
a43a27c5
PH
2844PH/43 Yet another patch from the Sieve maintainer.
2845
58eb016e 2846PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2847 the response to the final '.' that terminates a message, but only in the
2848 case where the client has not sent further data following the '.'
2849 (unfortunately, this is allowed). However, in many cases there won't be
2850 any further data because there won't be any more messages to send. A call
2851 to select() can be used: if it shows that the input is "ready", there is
2852 either input waiting, or the socket has been closed. An attempt to read
2853 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2854 would have sent an OK response which the client would never have see.
563b63fa
PH
2855 This could lead to message repetition. This fix should cure that, at
2856 least in a lot of common cases.
58eb016e 2857
b43a74ea
PH
2858PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2859 advertised in response to EHLO.
2860
b4ed4da0 2861
5dd1517f
PH
2862Exim version 4.66
2863-----------------
2864
2865PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2866 fixed by 4.65/MH/01 (is this a record?) are fixed:
2867
2868 (i) An empty string was always treated as zero by the numeric comparison
2869 operators. This behaviour has been restored.
2870
2871 (ii) It is documented that the numeric comparison operators always treat
2872 their arguments as decimal numbers. This was broken in that numbers
2873 starting with 0 were being interpreted as octal.
2874
2875 While fixing these problems I realized that there was another issue that
2876 hadn't been noticed. Values of message_size_limit (both the global option
2877 and the transport option) were treated as octal if they started with 0.
2878 The documentation was vague. These values are now always treated as
2879 decimal, and I will make that clear in the documentation.
2880
2881
93cfa765
TK
2882Exim version 4.65
2883-----------------
2884
2885TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2886 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2887 versions. (#438)
2888
d6066548
MH
2889MH/01 Don't check that the operands of numeric comparison operators are
2890 integers when their expansion is in "skipping" mode (fixes bug
2891 introduced by 4.64-PH/07).
2892
4362ff0d
PH
2893PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2894 child addresses, Exim now panics and dies. Previously, because the count
2895 is held in a short int, deliveries were likely to be lost. As such a
2896 large number of recipients for a single message is ridiculous
2897 (performance will be very, very poor), I have chosen to impose a limit
2898 rather than extend the field.
2899
93cfa765 2900
944e9e9c
TF
2901Exim version 4.64
2902-----------------
aa41d2de 2903
21d74bd9
TK
2904TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2905 leftover -K file (the existence of which was triggered by #402).
2906 While we were at it, introduced process PID as part of the -K
2907 filename. This should rule out race conditions when creating
2908 these files.
2909
2910TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2911 processing considerably. Previous code took too long for large mails,
2912 triggering a timeout which in turn triggers #401.
2913
2914TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2915 in the DK code in transports.c. sendfile() is not really portable,
2916 hence the _LINUX specificness.
944e9e9c
TF
2917
2918TF/01 In the add_headers option to the mail command in an Exim filter,
2919 there was a bug that Exim would claim a syntax error in any
2920 header after the first one which had an odd number of characters
2921 in the field name.
2922
2b1c6e3a
PH
2923PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2924 callout verification, Exim cached a "reject" for the entire domain. This
2925 is correct for most verifications, but it is not correct for a recipient
2926 verification with use_sender or use_postmaster set, because in that case
2927 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2928 case of MAIL FROM:<> rejection from other early rejections (e.g.
2929 rejection of HELO). When verifying a recipient using a non-null MAIL
2930 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2931 Whatever the result of the callout, the value of the domain cache is
2932 left unchanged (for any other kind of callout, getting as far as trying
2933 RCPT means that the domain itself is ok).
2934
1f872c80
PH
2935PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2936 gcc 4.1.1 threw up.
2937
2938PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2939 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2940 session, the daemon ignores ECONNECT errors and logs others; it now
2941 ignores EPIPE as well.
2942
d203e649
PH
2943PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2944 (quoted-printable decoding).
2945
cc2ed8f7 2946PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2947 later the small subsequent patch to fix an introduced bug.
f951fd57 2948
ddfcd446
PH
2949PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2950
d45b1de8
PH
2951PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2952
2953PH/08 An error is now given if message_size_limit is specified negative.
2954
38a0a95f 2955PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2956 to be given (somewhat) arbitrary names.
38a0a95f 2957
a2405d83
JJ
2958JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2959 in 4.64-PH/09.
2960
2961JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2962 miscellaneous code fixes
2963
6ea85e9a
PH
2964PH/10 Added the log_reject_target ACL modifier to specify where to log
2965 rejections.
2966
26da7e20
PH
2967PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2968 hostname. This is wrong, because it relates to the incoming message (and
2969 probably the interface on which it is arriving) and not to the outgoing
2970 callout (which could be using a different interface). This has been
2971 changed to use the value of the helo_data option from the smtp transport
2972 instead - this is what is used when a message is actually being sent. If
2973 there is no remote transport (possible with a router that sets up host
2974 addresses), $smtp_active_hostname is used.
6ea85e9a 2975
14aa5a05 2976PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2977 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2978 (a) The code assumed that strncpy() returns a negative number on buffer
2979 overflow, which isn't the case. Replaced with Exim's string_format()
2980 function.
2981 (b) There were several signed/unsigned issues. I just did the minimum
2982 hacking in of casts. There is scope for a larger refactoring.
2983 (c) The code used strcasecmp() which is not a standard C function.
2984 Replaced with Exim's strcmpic() function.
2985 (d) The code set only $1; it now sets $auth1 as well.
2986 (e) A simple test gave the error "authentication client didn't specify
2987 service in request". It would seem that Dovecot has changed its
2988 interface. Fortunately there's a specification; I followed it and
2989 changed what the client sends and it appears to be working now.
2990
ff75a1f7
PH
2991PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2992 decoding.
2993
e6f6568e
PH
2994PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2995 address A is aliased to B and C, where B exists and C does not. Without
2996 -v the output is "A verified" because verification stops after a
2997 successful redirection if more than one address is generated. However,
2998 with -v the child addresses are also verified. Exim was outputting "A
2999 failed to verify" and then showing the successful verification for C,
3000 with its parentage. It now outputs "B failed to verify", showing B's
3001 parentage before showing the successful verification of C.
3002
d6f6e0dc
PH
3003PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
3004 look up a TXT record in a specific list after matching in a combined
3005 list.
3006
322050c2
PH
3007PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
3008 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
3009 they consult the DNS. I had assumed they would set it the way they
3010 wanted; and indeed my experiments on Linux seem to show that in some
3011 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
3012 To be on the safe side, however, I have now made the interface to
3013 host_find_byname() similar to host_find_bydns(), with an argument
3014 containing the DNS resolver options. The host_find_byname() function now
3015 sets these options at its start, just as host_find_bydns() does. The smtp
3016 transport options dns_qualify_single and dns_search_parents are passed to
3017 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
3018 of host_find_byname() use the default settings of RES_DEFNAMES
3019 (qualify_single) but not RES_DNSRCH (search_parents).
3020
08955dd3
PH
3021PH/17 Applied (a modified version of) Nico Erfurth's patch to make
3022 spool_read_header() do less string testing, by means of a preliminary
3023 switch on the second character of optional "-foo" lines. (This is
3024 overdue, caused by the large number of possibilities that now exist.
3025 Originally there were few.) While I was there, I also converted the
3026 str(n)cmp tests so they don't re-test the leading "-" and the first
3027 character, in the hope this might squeeze out yet more improvement.
3028
1eccaa59
PH
3029PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3030 flag allowing group syntax was set by the header_syntax check but not
3031 turned off, possible causing trouble later; (2) The flag was not being
3032 set at all for the header_verify test, causing "group"-style headers to
3033 be rejected. I have now set it in this case, and also caused header_
3034 verify to ignore an empty address taken from a group. While doing this, I
3035 came across some other cases where the code for allowing group syntax
3036 while scanning a header line wasn't quite right (mostly, not resetting
3037 the flag correctly in the right place). These bugs could have caused
3038 trouble for malformed header lines. I hope it is now all correct.
3039
602e59e5
PH
3040PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3041 with the "reply" argument non-NULL. The code, however (which originally
3042 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3043 but it didn't always do it. This confused somebody who was copying the
3044 code for some other use. I have removed all the tests.
3045
411ef850
PH
3046PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3047 feature that was used to support insecure browsers during the U.S. crypto
3048 embargo. It requires special client support, and Exim is probably the
3049 only MTA that supported it -- and would never use it because real RSA is
3050 always available. This code has been removed, because it had the bad
3051 effect of slowing Exim down by computing (never used) parameters for the
3052 RSA_EXPORT functionality.
3053
7befa435
PH
3054PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3055 authenticator to fail if there's a tab character in the incoming data
3056 (there should never be unless someone is messing about, as it's supposed
3057 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3058 if the connection is using TLS or if the remote IP is the same as the
3059 local IP, and the "valid-client-cert option" if a client certificate has
3060 been verified.
3061
48da4259 3062PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3063 authenticators. This can be used for authorization after authentication
3064 succeeds. (In the case of plaintext, it servers for both authentication
3065 and authorization.)
3066
48da4259
PH
3067PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3068 if any retry times were supplied.
3069
d1d5595c
PH
3070PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3071 connection, where there is no client IP address to check. In this
3072 situation, the verify now always succeeds.
3073
0ef732d9
PH
3074PH/25 Applied John Jetmore's -Mset patch.
3075
328895cc
PH
3076PH/26 Added -bem to be like -Mset, but loading a message from a file.
3077
fd700877
PH
3078PH/27 In a string expansion for a processed (not raw) header when multiple
3079 headers of the same name were present, leading whitespace was being
3080 removed from all of them, but trailing whitespace was being removed only
3081 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3082 before concatenation. Completely empty headers in a concatenation (as
3083 before) are ignored.
fd700877 3084
8dce1a6f
PH
3085PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3086 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3087
17af4a17
PH
3088PH/29 [Removed. This was a change that I later backed out, and forgot to
3089 correct the ChangeLog entry (that I had efficiently created) before
3090 committing the later change.]
f6c332bd
PH
3091
3092PH/30 Exim was sometimes attempting to deliver messages that had suffered
3093 address errors (4xx response to RCPT) over the same connection as other
3094 messages routed to the same hosts. Such deliveries are always "forced",
3095 so retry times are not inspected. This resulted in far too many retries
3096 for the affected addresses. The effect occurred only when there were more
3097 hosts than the hosts_max_try setting in the smtp transport when it had
3098 the 4xx errors. Those hosts that it had tried were not added to the list
3099 of hosts for which the message was waiting, so if all were tried, there
3100 was no problem. Two fixes have been applied:
3101
3102 (i) If there are any address or message errors in an SMTP delivery, none
3103 of the hosts (tried or untried) are now added to the list of hosts
3104 for which the message is waiting, so the message should not be a
3105 candidate for sending over the same connection that was used for a
3106 successful delivery of some other message. This seems entirely
3107 reasonable: after all the message is NOT "waiting for some host".
3108 This is so "obvious" that I'm not sure why it wasn't done
3109 previously. Hope I haven't missed anything, but it can't do any
3110 harm, as the worst effect is to miss an optimization.
3111
3112 (ii) If, despite (i), such a delivery is accidentally attempted, the
3113 routing retry time is respected, so at least it doesn't keep
3114 hammering the server.
3115
c1114884
PH
3116PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3117 in ${readsocket because some servers need this prod.
3118
7a0743eb
PH
3119PH/32 Added some extra debug output when updating a wait-xxx database.
3120
0d85fa3f
PH
3121PH/33 The hint "could be header name not terminated by colon", which has been
3122 given for certain expansion errors for a long time, was not being given
3123 for the ${if def:h_colon_omitted{... case.
3124
1bf43b78
PH
3125PH/34 The spec says: "With one important exception, whenever a domain list is
3126 being scanned, $domain contains the subject domain." There was at least
3127 one case where this was not true.
3128
520de300
PH
3129PH/35 The error "getsockname() failed: connection reset by peer" was being
3130 written to the panic log as well as the main log, but it isn't really
3131 panic-worthy as it just means the connection died rather early on. I have
3132 removed the panic log writing for the ECONNRESET error when getsockname()
3133 fails.
3134
48c7f9e2
PH
3135PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3136 runs only) independently of the message's sender address. This meant
3137 that, if the 4xx error was in fact related to the sender, a different
3138 message to the same recipient with a different sender could confuse
4c04137d 3139 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3140 server, but other circumstances could also provoke similar problems.
3141 I have changed the default so that the retry time for these errors is now
3142 based a combination of the sender and recipient addresses. This change
3143 can be overridden by setting address_retry_include_sender=false in the
3144 smtp transport.
3145
99ea1c86
PH
3146PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3147 remote server are returned as part of bounce messages. This was not
3148 happening for LMTP over a pipe (the lmtp transport), but now it is the
3149 same for both kinds of LMTP.
3150
a2042e78
PH
3151PH/38 Despite being documented as not happening, Exim was rewriting addresses
3152 in header lines that were in fact CNAMEs. This is no longer the case.
3153
4fbcfc2e
PH
3154PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3155 and queue runs started by the daemon processed all messages. This has
3156 been fixed so that -R and -S can now usefully be given with -q<time>.
3157
aa41d2de
PH
3158PH/40 Import PCRE release 6.7 (fixes some bugs).
3159
af561417
PH
3160PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3161
3cc66b45
PH
3162PH/42 Give an error if -q is specified more than once.
3163
194cc0e4
PH
3164PH/43 Renamed the variables $interface_address and $interface_port as
3165 $received_ip_address and $received_port, to make it clear that these
3166 values apply to message reception, and not to the outgoing interface when
3167 a message is delivered. (The old names remain recognized, of course.)
3168
a401ddaa
PH
3169PH/44 There was no timeout on the connect() call when using a Unix domain
3170 socket in the ${readsocket expansion. There now is.
3171
4e88a19f
PH
3172PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3173 be meaningful with "accept".
3174
d7d7b289
SC
3175SC/01 Eximstats V1.43
3176 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3177
3178SC/02 Eximstats V1.44
3179 Use a glob alias rather than an array ref in the generated
3180 parser. This improves both readability and performance.
3181
3182SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3183 Collect SpamAssassin and rejection statistics.
3184 Don't display local sender or destination tables unless
3185 there is data to show.
3186 Added average volumes into the top table text output.
3187
3188SC/04 Eximstats V1.46
3189 Collect data on the number of addresses (recipients)
3190 as well as the number of messages.
3191
3192SC/05 Eximstats V1.47
3193 Added 'Message too big' to the list of mail rejection
3194 reasons (thanks to Marco Gaiarin).
3195
3196SC/06 Eximstats V1.48
3197 Mainlog lines which have GMT offsets and are too short to
3198 have a flag are now skipped.
3199
3200SC/07 Eximstats V1.49 (Alain Williams)
3201 Added the -emptyok flag.
3202
3203SC/08 Eximstats V1.50
3204 Fixes for obtaining the IP address from reject messages.
3205
0ea2a468
JJ
3206JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3207 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3208 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3209
3210JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3211 match 4.64-PH/13
3212
3213JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3214 are found, allow negative numbers in numeric criteria)
3215
3216JJ/06 exipick.20061117.2, added new $message_body_missing variable
3217
3218JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3219 to match changes made in 4.64-PH/43
3220
8a10f5a4
PH
3221PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3222
30e18802
PH
3223PH/47 Put in an explicit test for a DNS lookup of an address record where the
3224 "domain" is actually an IP address, and force a failure. This locks out
3225 those revolvers/nameservers that support "A-for-A" lookups, in
3226 contravention of the specifications.
3227
55728a4f
PH
3228PH/48 When a host name was looked up from an IP address, and the subsequent
3229 forward lookup of the name timed out, the host name was left in
3230 $sender_host_name, contrary to the specification.
d7d7b289 3231
d7837193
PH
3232PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3233 restricted to single-key lookups, Exim was not diagnosing an error if
3234 * or *@ was used with a query-style lookup.
3235
87054a31
PH
3236PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3237
ea2c01d2
MH
3238MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3239 long ago, but noone interested enough thought of it. Let's just say that
3240 the "1.1" means that there are some new functions that weren't there at
3241 some point in the past.
3242
e4fa6968
PH
3243PH/51 Error processing for expansion failure of helo_data from an smtp
3244 transport during callout processing was broken.
3245
56f5d9bd
PH
3246PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3247 tested/used via the -bh/-bhc/-bs options.
3248
922e1c28
PH
3249PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3250 bug, fixed in subsequent PCRE releases).
3251
21eb6e72
PH
3252PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3253 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3254