TLS: add variables for the IETF standard name for the connection ciphersuite
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
40ed89b3
JH
8Exim version 4.93
9-----------------
10
8a40db1c
JH
11JH/01 OpenSSL: With debug enabled output keying information sufficient, server
12 side, to decode a TLS 1.3 packet capture.
40ed89b3 13
d7f31bb6
JH
14JH/02 OpenSSL: suppress the sending of (stateful) TLS1.3 session tickets.
15 Previously the default library behaviour applied, sending two, each in
16 its own TCP segment.
17
897024f1
JH
18JH/03 Debug output for ACL now gives the config file name and line number for
19 each verb.
20
f1be21cf
JH
21JH/04 The default received_header_text now uses the RFC 8314 tls cipher clause.
22
40ed89b3 23
d99f54e4
JH
24Exim version 4.92
25-----------------
26
9723f966
JH
27JH/01 Remove code calling the customisable local_scan function, unless a new
28 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
29
30JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
JH
31 non-signal-safe functions being used.
32
33JH/03 Bug 2269: When presented with a received message having a stupidly large
34 number of DKIM-Signature headers, disable DKIM verification to avoid
35 a resource-consumption attack. The limit is set at twenty.
9723f966 36
ea7b1f16
JH
37JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
38 report of oldest_pass in ${authres } in consequence, and separate out
39 some descriptions of reasons for verification fail.
40
cfbb0d24
JH
41JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
42 files in the spool were present and unlocked. A queue-runner could spot
43 them, resulting in a duplicate delivery. Fix that by doing the unlock
0488984d
JH
44 after the unlink. Investigation by Tim Stewart. Take the opportunity to
45 add more error-checking on spoolfile handling while that code is being
cfbb0d24
JH
46 messed with.
47
85defcf0
PP
48PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
49 No known attacks, no CVE, this is defensive hardening.
50
1bd642c2
JH
51JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
52 a queue-runner could start a delivery while other operations were ongoing.
53 Cutthrough delivery was a common victim, resulting in duplicate delivery.
54 Found and investigated by Tim Stewart. Fix by using the open message data
55 file handle rather than opening another, and not locally closing it (which
56 releases a lock) for that case, while creating the temporary .eml format
57 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
58
2ddb4094
JH
59JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
60 $sender_verify_failure/$recipient_verify_failure to "random".
61
1613fd68
JH
62JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
63 legitimate.
64
e6057245
JH
65JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
66 Previously this would segfault.
67
7b9822bf
JH
68JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
69 segfault.
70
d8d9f930
JH
71JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
72 like zero, since the resolver should be doing this for us, But we need one
73 as a CNAME but no MX presence gets the CNAME returned; we need to check
74 that doesn't point to an MX to declare it "no MX returned" rather than
75 "error, loop". A new main option is added so the older capability of
76 following some limited number of chain links is maintained.
77
61e3f250
JH
78JH/12 Add client-ip info to non-pass iprev ${authres } lines.
79
7a8b9519
JH
80JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
81 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
82 now-deprecated earlier definitions used only specified the range up to TLS
83 1.2 (in the older-version library docs).
84
49e56fb3
JH
85JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
86
74f1a423
JH
87JH/15 Rework TLS client-side context management. Stop using a global, and
88 explicitly pass a context around. This enables future use of TLS for
89 connections to service-daemons (eg. malware scanning) while a client smtp
90 connection is using TLS; with cutthrough connections this is quite likely.
91
5054c4fd 92JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
JH
93
94JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 95
946515bf
JH
96JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
97 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
98 Previously the "utf8" would be re-prepended for every additional message.
99
8c34c611
JH
100JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
101 Previously thery were accepted, resulting in issues when attempting to
102 forward messages to a non-supporting MTA.
103
1bca4f5f
PP
104PP/02 Let -n work with printing macros too, not just options.
105
8a6b4e02
JH
106JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
107 one parent address was copied, and bogus data was used at delivery-logging
108 time. Either a crash (after delivery) or bogus log data could result.
109 Discovery and analysis by Tim Stewart.
110
0a682b6c
PP
111PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
112 Previously if the string ended mid-character, we did not insert the
113 promised '?' replacement.
114
c2c451ac
PP
115PP/04 Documentation: current string operators work on bytes, not codepoints.
116
8768d548
JH
117JH/21 Change as many as possible of the global flags into one-bit bitfields; these
118 should pack well giving a smaller memory footprint so better caching and
119 therefore performance. Group the declarations where this can't be done so
120 that the byte-sized flag variables are not interspersed among pointer
121 variables, giving a better chance of good packing by the compiler.
122
5455f548
JH
123JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
124 non-null, to avoid issues with sites running BATV. Previously reports were
125 sent with an empty envelope sender so looked like bounces.
126
25beaee4
MK
127JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
128 The ignore_error flag wasn't being returned from the filter subprocess so
129 was not set for later routers. Investigation and fix by Matthias Kurz.
130
7ea1237c 131JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 132 and a msg:complete for the whole, when a message is manually removed using
7ea1237c
MK
133 -Mrm. Developement by Matthias Kurz, hacked on by JH.
134
ebda598a
JH
135JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
136 a "Gnu special" function, asprintf() in the DB utility binary builds; I
137 hope that is portable enough.
138
570cb1bd
JH
139JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
140 requiring a known-CA anchor certificate; make it now rely entirely on the
141 TLSA as an anchor. Checking the name on the leaf cert against the name
142 on the A-record for the host is still done for TA (but not for EE mode).
143
eb58ddf5
JH
144JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
145 included in delivery lines for non-proxied connections, when compiled with
146 SUPPORT_SOCKS and running with proxy logging enabled.
147
ffbc20ed
MK
148JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
149 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
150 move the existing event to fire before the normal logging of message
151 failure so that custom logging is bracketed by normal logging.
152
4e928780
MK
153JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
154 msg:fail:internal event. Developement by Matthias Kurz.
155
75c121f0 156JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 157 far too small for todays use of crypto signatures stored there. Go all
75c121f0
JH
158 the way to the max DNS message size of 64kB, even though this might be
159 overmuch for IOT constrained device use.
160
e30f4f43
JH
161JH/31 Fix a bad use of a copy function, which could be used to pointlessly
162 copy a string over itself. The library routine is documented as not
163 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
164
a45431fa
JH
165JH/32 For main options check_spool_space and check_inode_space, where the
166 platform supports 64b integers, support more than the previous 2^31 kB
167 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
168 the previous G, M, k.
169
c0fb53b7
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170JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
171 $authenticated_fail_id variable on authentication failure. Previously
172 it was unset.
173
6aac3239
JH
174JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
175 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
176 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
177 GNUTLS_SEC_PARAM_MEDIUM.
178
5a2a0989
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179JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
180 side. Previously we would continue as if no SNI had been received.
181
de6f74f2 182JH/36 Harden the handling of string-lists. When a list consisted of a sole
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183 "<" character, which should be a list-separator specification, we walked
184 off past the nul-terimation.
185
de6f74f2
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186JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
187 causes) even when the retry time is not yet met. Previously they were
188 not, meaning that when (say) an account was over-quota and temp-rejecting,
189 and multiple senders' messages were queued, only one sender would get
190 notified on each configured delay_warning cycle.
191
aa6e77af 192JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 193
25fa0868
JH
194JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
195 cipher-suites, an error can be left on the stack even for a succeeding
196 accept; this results in impossible error messages when a later operation
197 actually does fail.
198
cb6bd80f
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199AM/01 Bug 2359: GnuTLS: repeat lowlevel read and write operations while they
200 return error codes indicating retry. Under TLS1.3 this becomes required.
201
202JH/40 Fix the feature-cache refresh for EXPERIMENTAL_PIPE_CONNECT. Previously
203 it only wrote the new authenticators, resulting in a lack of tracking of
204 peer changes of ESMTP extensions until the next cache flush.
518b70e9 205
56ac062a
JH
206JH/41 Fix the loop reading a message header line to check for integer overflow,
207 and more-often against header_maxsize. Previously a crafted message could
208 induce a crash of the recive process; now the message is cleanly rejected.
209
ae63862b
MA
210JH/42 Bug 2366: Fix the behaviour of the dkim_verify_signers option. It had
211 been totally disabled for all of 4.91. Discovery and fix by "Mad Alex".
212
9723f966 213
bb264f6b
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214Exim version 4.91
215-----------------
459fca58 216
c39c8870 217GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
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218 When redis_servers is set to a list of > 1 element, and the Redis servers
219 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
220 case of MOVED into a DEFER case instead, thus moving the query onto the
221 next server in the list. For a cluster of N elements, all N servers must
222 be defined in redis_servers.
c39c8870 223
0800ef83
GF
224GF/02 Catch and remove uninitialized value warning in exiqsumm
225 Check for existence of @ARGV before looking at $ARGV[0]
226
459fca58
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227JH/01 Replace the store_release() internal interface with store_newblock(),
228 which internalises the check required to safely use the old one, plus
229 the allocate and data copy operations duplicated in both (!) of the
230 extant use locations.
231
944e8b37
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232JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
233 modifier. This matches the restriction on the commandline.
234
bbfb5dcd
JH
235JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
236 Previously only the last row was returned.
237
a05d3e34
JH
238JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
239 we assumed that tags in the header were well-formed, and parsed the
240 element content after inspecting only the first char of the tag.
241 Assumptions at that stage could crash the receive process on malformed
242 input.
243
ce93c6d8
JH
244JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
245 While running the DKIM ACL we operate on the Permanent memory pool so that
246 variables created with "set" persist to the DATA ACL. Also (at any time)
247 DNS lookups that fail create cache records using the Permanent pool. But
248 expansions release any allocations made on the current pool - so a dnsdb
249 lookup expansion done in the DKIM ACL releases the memory used for the
250 DNS negative-cache, and bad things result. Solution is to switch to the
251 Main pool for expansions.
252 While we're in that code, add checks on the DNS cache during store_reset,
253 active in the testsuite.
254 Problem spotted, and debugging aided, by Wolfgang Breyha.
255
2577f55f
JH
256JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
257 When none of the hosts presented to a transport match an already-open
258 connection, close it and proceed with the list. Previously we would
259 queue the message. Spotted by Lena with Yahoo, probably involving
260 round-robin DNS.
261
5b6f7658
JH
262JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
263 Previously a spurious "250 OK id=" response was appended to the proper
264 failure response.
265
c11d665d
JH
266JH/08 The "support for" informational output now, which built with Content
267 Scanning support, has a line for the malware scanner interfaces compiled
268 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
269
270JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
271 by the template makefile "src/EDITME". The "STREAM" support for an older
272 ClamAV interface method is removed.
c11d665d 273
ba0e37b1
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274JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
275 rows affected is given instead).
276
96508de1
JH
277JH/11 The runtime Berkeley DB library version is now additionally output by
278 "exim -d -bV". Previously only the compile-time version was shown.
279
06fdb9f7
JH
280JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
281 SMTP connection. Previously, when one had more receipients than the
282 first, an abortive onward connection was made. Move to full support for
283 multiple onward connections in sequence, handling cutthrough connection
284 for all multi-message initiating connections.
285
f83a760f
JH
286JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
287 routers. Previously, a multi-recipient message would fail to match the
288 onward-connection opened for the first recipient, and cause its closure.
289
f1fed05b
JH
290JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
291 a timeout on read on a GnuTLS initiating connection, resulting in the
292 initiating connection being dropped. This mattered most when the callout
293 was marked defer_ok. Fix to keep the two timeout-detection methods
294 separate.
295
051d5efa
JH
296JH/15 Relax results from ACL control request to enable cutthrough, in
297 unsupported situations, from error to silently (except under debug)
298 ignoring. This covers use with PRDR, frozen messages, queue-only and
299 fake-reject.
300
cf3cd306
HSHR
301HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
302
744976d4
JH
303JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
304 metadata, resulting in a crash in free().
305
aab9a843 306PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 307 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 308 Broken also in d185889f4, with init system revamp.
7be14582 309
83d2a861
JH
310JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
311 Previously we abruptly closed the connection after reading a malware-
312 found indication; now we go on to read the "scan ok" response line,
313 and send a quit.
314
6741531c
JH
315JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
316 ACL. Previously, a crash would result.
317
85e03244
JH
318JH/19 Speed up macro lookups during configuration file read, by skipping non-
319 macro text after a replacement (previously it was only once per line) and
320 by skipping builtin macros when searching for an uppercase lead character.
321
c0635b6d
JH
322JH/20 DANE support moved from Experimental to mainline. The Makefile control
323 for the build is renamed.
324
b808677c
JH
325JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
326 was allocated for every new TLS startup, meaning one per message. Fix
327 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
328
6678c382
JH
329JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
330 reported the original. Fix to report (as far as possible) the ACL
331 result replacing the original.
332
dec766a1
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333JH/23 Fix memory leak during multi-message connections using STARTTLS under
334 OpenSSL. Certificate information is loaded for every new TLS startup,
335 and the resources needed to be freed.
336
15ae19f9
JH
337JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
338
e6532c4a
JH
339JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
340 was not propagated.
341
2556b3c6
SA
342JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
343 DATA response info to the (existing) per-recipient response info for
344 the "C=" log element. It can have useful tracking info from the
345 destination system. Patch from Simon Arlott.
346
fc8cd529
JH
347JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
348 length value. Previously this would segfault.
349
71bb51e0
HSHR
350HS/02 Support Avast multiline protoocol, this allows passing flags to
351 newer versions of the scanner.
352
e04bfa34
JH
353JH/28 Ensure that variables possibly set during message acceptance are marked
354 dead before release of memory in the daemon loop. This stops complaints
355 about them when the debug_store option is enabled. Discovered specifically
356 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
357 Do the same for the queue-runner and queue-list loops, for variables set
358 from spool message files. Do the same for the SMTP per-message loop, for
359 certain variables indirectly set in ACL operations.
e04bfa34 360
ecce6d9a
JH
361JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
362 as a multi-recipient message from a mailinglist manager). The coding had
363 an arbitrary cutoff number of characters while checking for more input;
364 enforced by writing a NUL into the buffer. This corrupted long / fast
365 input. The problem was exposed more widely when more pipelineing of SMTP
366 responses was introduced, and one Exim system was feeding another.
367 The symptom is log complaints of SMTP syntax error (NUL chars) on the
368 receiving system, and refused recipients seen by the sending system
369 (propating to people being dropped from mailing lists).
370 Discovered and pinpointed by David Carter.
371
c9cf9ac4
JH
372JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
373 replaced by the ${authresults } expansion.
374
b3b37076
JH
375JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
376
830832c9
HSHR
377HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
378 allows proper process termination in container environments.
379
f64e8b5f
JH
380JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
381 Previously the "final dot" had a newline after it; ensure it is CR,LF.
382
8f0776b5
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383JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
384 and "err_perm", deprecated since 4.83 when the RFC-defined words
385 "temperror" and "permerror" were introduced.
386
857eaf37
JH
387JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
388 transport-filters or DKIM-signing. The restriction was lost in the
389 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 390 Extend the restriction to also cover ARC-signing.
857eaf37 391
c85476e9
JH
392JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
393 in defer=pass mode supply a 450 to the initiator. Previously the message
394 would be spooled.
395
405074ad
PP
396PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
397 tls_require_ciphers is used as before.
398
eb445b04
HSHR
399HS/03 Malware Avast: Better match the Avast multiline protocol. Add
400 "pass_unscanned". Only tmpfails from the scanner are written to
401 the paniclog, as they may require admin intervention (permission
402 denied, license issues). Other scanner errors (like decompression
403 bombs) do not cause a paniclog entry.
ad93c40f 404
d342446f
JH
405JH/36 Fix reinitialisation of DKIM logging variable between messages.
406 Previously it was possible to log spurious information in receive log
407 lines.
408
a28050f8
JH
409JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
410 triggered odd behaviour from Outlook Express clients.
411
ddd16464
PP
412PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
413 suffix list.
414
321ef002
JH
415JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
416 since the IETF WG has not yet settled on that versus the original
417 "bare" representation.
418
3203e7ba
JH
419JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
420 Previously the millisecond value corrupted the output.
421 Fix also for syslog_pid=no and log_selector +pid, for which the pid
422 corrupted the output.
423
bbfb5dcd 424
acfc18c3
PP
425Exim version 4.90
426-----------------
427
428JH/01 Rework error string handling in TLS interface so that the caller in
429 more cases is responsible for logging. This permits library-sourced
430 string to be attached to addresses during delivery, and collapses
431 pairs of long lines into single ones.
432
856d1e16
PP
433PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
434 during configuration. Wildcards are allowed and expanded.
435
b9df1829
JH
436JH/02 Rework error string handling in DKIM to pass more info back to callers.
437 This permits better logging.
438
875512a3
JH
439JH/03 Rework the transport continued-connection mechanism: when TLS is active,
440 do not close it down and have the child transport start it up again on
441 the passed-on TCP connection. Instead, proxy the child (and any
442 subsequent ones) for TLS via a unix-domain socket channel. Logging is
443 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 444 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 445
fc3f96af
JH
446JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
447 identical IP addresses on different listening ports. Will also affect
448 "exiwhat" output.
449
98913c8e
BK
450PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
451 add noisy ifdef guards to special-case this sillyness.
452 Patch from Bernd Kuhls.
453
8d909960
JH
454JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
455 than 255 are no longer allowed.
456
7006ee24
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457JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
458 Disable the session-cache too, which might reduce our load. Since we
459 currrectly use a new context for every connection, both as server and
460 client, there is no benefit for these.
461 GnuTLS appears to not support tickets server-side by default (we don't
462 call gnutls_session_ticket_enable_server()) but client side is enabled
463 by default on recent versions (3.1.3 +) unless the PFS priority string
464 is used (3.2.4 +).
465
6e411084
PP
466PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
467 <https://reproducible-builds.org/specs/source-date-epoch/>.
468
4c2471ca
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469JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
470 the check for any unsuccessful recipients did not notice the limit, and
471 erroneously found still-pending ones.
472
4e910c01
JH
473JH/08 Pipeline CHUNKING command and data together, on kernels that support
474 MSG_MORE. Only in-clear (not on TLS connections).
475
42055a33
JH
476JH/09 Avoid using a temporary file during transport using dkim. Unless a
477 transport-filter is involved we can buffer the headers in memory for
478 creating the signature, and read the spool data file once for the
479 signature and again for transmission.
480
eeb35890
JH
481JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
482 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 483 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 484
b7d3afcf
JH
485JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
486 case where the routing stage had gathered several addresses to send to
487 a host before calling the transport for the first, we previously failed
488 to close down TLS in the old transport process before passing the TCP
489 connection to the new process. The new one sent a STARTTLS command
490 which naturally failed, giving a failed delivery and bloating the retry
491 database. Investigation and fix prototype from Wolfgang Breyha.
492
40525d07
JH
493JH/12 Fix check on SMTP command input synchronisation. Previously there were
494 false-negatives in the check that the sender had not preempted a response
495 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 496 awareness of the SMTP input buffering.
40525d07 497
f33875c3
PP
498PP/04 Add commandline_checks_require_admin option.
499 Exim drops privileges sanely, various checks such as -be aren't a
500 security problem, as long as you trust local users with access to their
501 own account. When invoked by services which pass untrusted data to
502 Exim, this might be an issue. Set this option in main configuration
503 AND make fixes to the calling application, such as using `--` to stop
504 processing options.
505
a5ffa9b4
JH
506JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
507 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
508 responses to those, into a single TLS record each way (this usually means
509 a single packet). As a side issue, smtp_enforce_sync now works on TLS
510 connections.
925ac8e4 511
6600985a
PP
512PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
513 affects you only if you're dancing at the edge of the param size limits.
514 If you are, and this message makes sense to you, then: raise the
515 configured limit or use OpenSSL 1.1. Nothing we can do for older
516 versions.
517
ac4d558b
JH
518JH/14 For the "sock" variant of the malware scanner interface, accept an empty
519 cmdline element to get the documented default one. Previously it was
520 inaccessible.
521
e69636bc
JH
522JH/15 Fix a crash in the smtp transport caused when two hosts in succession
523 are unsuable for non-message-specific reasons - eg. connection timeout,
524 banner-time rejection.
525
a843a57e
JH
526JH/16 Fix logging of delivery remote port, when specified by router, under
527 callout/hold.
528
8e041ae0
PP
529PP/06 Repair manualroute's ability to take options in any order, even if one
530 is the name of a transport.
833c70bc
PP
531 Fixes bug 2140.
532
35a04365
HSHR
533HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
534
4226691b
JH
535JH/17 Change the list-building routines interface to use the expanding-string
536 triplet model, for better allocation and copying behaviour.
537
d185889f
JH
538JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
539 Previously it was constructed the first time a possibly-matching string
540 was met in the configuration file input during startup; now it is done
541 during compilation.
542
0a6c178c
JH
543JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
544 compatible one, to avoid the (poorly documented) possibility of a config
545 file in the working directory redirecting the DB files, possibly correpting
02745400 546 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 547
fae8970d
JH
548JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
549 cache-hot. Previously, although the result was properly cached, the
550 initial verify call returned a defer.
551
ad1a76fe 552JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
553 the main verify for receipient in uncached-mode.
554
ad1a76fe
JH
555JH/22 Retire historical build files to an "unsupported" subdir. These are
556 defined as "ones for which we have no current evidence of testing".
557
135e9496
JH
558JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
559 if present. Previously it was ignored.
560
f2ed27cf
JH
561JH/24 Start using specified-initialisers in C structure init coding. This is
562 a C99 feature (it's 2017, so now considered safe).
563
7eb0e5d2
JH
564JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
565 if was a fixed-sized field and bitmask ops via macros; it is now more
566 extensible.
567
4f9f4be4
568PP/07 GitHub PR 56: Apply MariaDB build fix.
569 Patch provided by Jaroslav Škarvada.
570
dc4de9cc
PP
571PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
572 during Coverity cleanups [4.87 JH/47]
573 Diagnosis and fix provided by Michael Fischer v. Mollard.
574
ea18931d
JH
575JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
576 the right size to place the terminating semicolon on its own folded
577 line, the header hash was calculated to an incorrect value thanks to
578 the (relaxed) space the fold became.
579
0768462d 580HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
581 and confused the parent.
582
848214f7
JH
583JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
584 which could crash as a result. This could lead to undeliverable messages.
585
9e0ed81f
JH
586JH/28 Logging: "next input sent too soon" now shows where input was truncated
587 for log purposes.
588
2540f2f8
JH
589JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
590 matters on fast-turnover and PID-randomising systems, which were getting
591 out-of-order delivery.
592
e5ab0ba9
JH
593JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
594 a possibly-overlapping copy. The symptom was that "Remote host closed
595 connection in response to HELO" was logged instead of the actual 4xx
596 error for the HELO.
597
e99a3a6c
JH
598JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
599 Previously only that bufferd was discarded, resulting in SYMTP command
600 desynchronisation.
601
18067c75
JH
602JH/32 DKIM: when a message has multiple signatures matching an identity given
603 in dkim_verify_signers, run the dkim acl once for each. Previously only
604 one run was done. Bug 2189.
605
72934ba7
JH
606JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
607 "panic the current process" to "deliberately defer". The panic log is
608 still written with the problem list name; the mail and reject logs now
609 get a temp-reject line for the message that was being handled, saying
610 something like "domains check lookup or other defer". The SMTP 451
611 message is still "Temporary local problem".
612
625667b6
JH
613JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
614 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
615 freed. CVE-2017-16943.
616
617HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
618 from SMTP input. Previously it was always done; now only done for DATA
619 and not BDAT commands. CVE-2017-16944.
625667b6 620
d21bf202
JH
621JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
622 to the message (such as an overlong header line). Previously this was
623 not done and we did not exit BDAT mode. Followon from the previous item
624 though a different problem.
625
acfc18c3 626
fd047340 627Exim version 4.89
acfc18c3 628-----------------
4c57a40e 629
9427e879 630JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 631 than -2003 did; needs libidn2 in addition to libidn.
fd047340 632
7b283890
JH
633JH/02 The path option on a pipe transport is now expanded before use.
634
4c57a40e
PP
635PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
636 Patch provided by "Björn", documentation fix added too.
637
5d036699
JH
638JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
639 missing a wire-to-host endian conversion.
640
f4630439
JH
641JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
642 close after a BDAT command line could be taken as a following command,
643 giving a synch failure. Fix by only checking for synch immediately
644 before acknowledging the chunk.
645
f988ce57
JS
646PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
647 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
648 macro. Patches provided by Josh Soref.
649
bd8fbe36
JH
650JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
651 Previously we did not; the RFC seems ambiguous and VRFY is not listed
652 by IANA as a service extension. However, John Klensin suggests that we
653 should.
654
655JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
656 the dkim code may be unix-mode line endings rather than smtp wire-format
657 CRLF, so prepend a CR to any bare LF.
fd047340 658
bd8fbe36 659JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
660 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
661
bd8fbe36
JH
662JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
663 the first were themselves being wrongly included in the feed into dkim
664 processing; with most chunk sizes in use this resulted in an incorrect
665 body hash calculated value.
666
eea19017
JH
667JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
668 DKIM signature block, for verification. Although advised against by
669 standards it is specifically not ruled illegal.
670
44e6651b
JH
671JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
672
673JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
674 missing a body hash (the bh= tag).
675
676JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
677 It seems that HAProxy sends the Proxy Protocol information in clear and
678 only then does a TLS startup, so do the same.
679
680JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
681 TCP connections (such as for Spamd) unless the daemon successfully set
682 Fast Open mode on its listening sockets. This fixes breakage seen on
683 too-old kernels or those not configured for Fast Open, at the cost of
684 requiring both directions being enabled for TFO, and TFO never being used
685 by non-daemon-related Exim processes.
686
687JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
688 endings, at least on the first header line. Try to canonify any that get
689 past that check, despite the cost.
690
b6040544
JH
691JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
692 now limited to an arbitrary five deep, while parsing addresses with the
693 strip_excess_angle_brackets option enabled.
694
f700ea4d
PP
695PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
696 instead leave the unprompted TLS handshake in socket buffer for the
697 TLS library to consume.
698
da88acae
PP
699PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
700
f6ef9370
PP
701PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
702
90341c71
JH
703JH/16 Drop variables when they go out of scope. Memory management drops a whole
704 region in one operation, for speed, and this leaves assigned pointers
705 dangling. Add checks run only under the testsuite which checks all
706 variables at a store-reset and panics on a dangling pointer; add code
707 explicitly nulling out all the variables discovered. Fixes one known
708 bug: a transport crash, where a dangling pointer for $sending_ip_address
709 originally assigned in a verify callout, is re-used.
710
1ec2ab36
PP
711PP/06 Drop '.' from @INC in various Perl scripts.
712
713PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
714
715PP/08 Reduce a number of compilation warnings under clang; building with
716 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
717 should be warning-free.
718
8b2b9480
PP
719JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
720
721HS/01 Fix portability problems introduced by PP/08 for platforms where
722 realloc(NULL) is not equivalent to malloc() [SunOS et al].
723
d953610f
HSHR
724HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
725 chunk. This allows us to accept broken chunked messages. We need a more
726 general solution here.
727
7dc5f827
PP
728PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
729 already-broken messages in the queue.
730
4bb432cb
PP
731JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
732
3b1a84c8
PP
733JH/19 Fix reference counting bug in routing-generated-address tracking.
734
902fbd69 735
8d042305
JH
736Exim version 4.88
737-----------------
4c57a40e 738
9094b84b
JH
739JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
740 supports it and a size is available (ie. the sending peer gave us one).
8d042305 741
03d5892b
JH
742JH/02 The obsolete acl condition "demime" is removed (finally, after ten
743 years of being deprecated). The replacements are the ACLs
744 acl_smtp_mime and acl_not_smtp_mime.
745
4b0fe319
JH
746JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
747 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
748 or even an in-clear connection were permitted. Now, if the host lookup
749 was dnssec and dane was requested then the host is only used if the
750 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
751 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
752 if one fails this test.
753 This means that a poorly-configured remote DNS will make it incommunicado;
754 but it protects against a DNS-interception attack on it.
755
789f8a4f
JH
756JH/04 Bug 1810: make continued-use of an open smtp transport connection
757 non-noisy when a race steals the message being considered.
758
23bb6982 759JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 760 self-signed certificate for inbound TLS connections.
23bb6982 761
0bd1b1ed 762JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 763 in rewrites and routers.
0bd1b1ed 764
20b9a2dc
JH
765JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
766 and logged a warning sing 4.83; now they are a configuration file error.
767
05392bbc
JH
768JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
769 (lacking @domain). Apply the same qualification processing as RCPT.
770
1a6230a3
JH
771JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
772
cfab9d68
JH
773JH/10 Support ${sha256:} applied to a string (as well as the previous
774 certificate).
775
98c82a3d
JH
776JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
777 a cutthrough deliver is pending, as we always want to make a connection.
778 This also avoids re-routing the message when later placing the cutthrough
779 connection after a verify cache hit.
780 Do not update it with the verify result either.
781
782JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
783 when routing results in more than one destination address.
784
ae8386f0
JH
785JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
786 signing (which inhibits the cutthrough capability). Previously only
787 the presence of an option was tested; now an expansion evaluating as
788 empty is permissible (obviously it should depend only on data available
789 when the cutthrough connection is made).
790
0d9fa8c0
JH
791JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
792 the relevant preceding SMTP command did not note the pipelining mode.
793
3581f321
JH
794JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
795 Previously they were not counted.
796
ef3a1a30
JH
797JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
798 as one having no matching records. Previously we deferred the message
799 that needed the lookup.
800
4c04137d 801JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
802 distinguished as "(=".
803
1435d4b2
JH
804JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
805 for missing MX records. Previously it only worked for missing A records.
806
eea0defe
JB
807JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
808
809JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
810 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 811
4c04137d 812JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
813 even for a "none" policy. Patch from Tony Meyer.
814
1c788856
JH
815JH/22 Fix continued use of a connection for further deliveries. If a port was
816 specified by a router, it must also match for the delivery to be
817 compatible.
818
e3b1f624
JH
819JH/23 Bug 1874: fix continued use of a connection for further deliveries.
820 When one of the recipients of a message was unsuitable for the connection
821 (has no matching addresses), we lost track of needing to mark it
822 deferred. As a result mail would be lost.
823
a57ce043
JH
824JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
825
f59aaaaa 826JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
827 takes up less space and should be simpler to maintain. Merge the ACL
828 condition decode tables also, with similar effect.
d7bed771 829
d1f9fb42
JH
830JH/26 Fix problem with one_time used on a redirect router which returned the
831 parent address unchanged. A retry would see the parent address marked as
832 delivered, so not attempt the (identical) child. As a result mail would
833 be lost.
834
92b0827a
JH
835JH/27 Fix a possible security hole, wherein a process operating with the Exim
836 UID can gain a root shell. Credit to http://www.halfdog.net/ for
837 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
838 itself :(
839
ddf1b11a
JH
840JH/28 Enable {spool,log} filesystem space and inode checks as default.
841 Main config options check_{log,spool}_{inodes,space} are now
842 100 inodes, 10MB unless set otherwise in the configuration.
843
3cc3f762
JH
844JH/29 Fix the connection_reject log selector to apply to the connect ACL.
845 Previously it only applied to the main-section connection policy
846 options.
847
ae5afa61
JH
848JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
849
317e40ac
PP
850PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
851 by me. Added RFC7919 DH primes as an alternative.
852
8b0fb68e
PP
853PP/02 Unbreak build via pkg-config with new hash support when crypto headers
854 are not in the system include path.
855
ad7fc6eb 856JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 857 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
858 Exim did stdio operations after fclose. This was exposed by a recent
859 change which nulled out the file handle after the fclose.
ad7fc6eb 860
ee5b1e28
JH
861JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
862 signed directly by the cert-signing cert, rather than an intermediate
863 OCSP-signing cert. This is the model used by LetsEncrypt.
864
5ddc9771
JH
865JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
866
8d73599f
JH
867HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
868 an incoming connection.
869
446415f5
HSHR
870HS/02 Bug 1802: Do not half-close the connection after sending a request
871 to rspamd.
872
8e53a4fc
HSHR
873HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
874 fallback to "prime256v1".
8d042305 875
87cb4a16 876JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 877 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
878
879
0d9b78be
JH
880Exim version 4.87
881-----------------
4c57a40e 882
82d14d6a
JH
883JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
884 and 3.4.4 - once the server is enabled to respond to an OCSP request
885 it does even when not requested, resulting in a stapling non-aware
886 client dropping the TLS connection.
0d9b78be 887
6c6d6e48
TF
888TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
889 support variable-length bit vectors. No functional change.
890
ac881e27
TF
891TF/02 Improve the consistency of logging incoming and outgoing interfaces.
892 The I= interface field on outgoing lines is now after the H= remote
893 host field, same as incoming lines. There is a separate
894 outgoing_interface log selector which allows you to disable the
895 outgoing I= field.
896
c8899c20
JH
897JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
898 If not running log_selector +smtp_connection the mainlog would be held
899 open indefinitely after a "too many connections" event, including to a
900 deleted file after a log rotate. Leave the per net connection logging
901 leaving it open for efficiency as that will be quickly detected by the
902 check on the next write.
903
f1b81d81
HSHR
904HS/01 Bug 1671: Fix post transport crash.
905 Processing the wait-<transport> messages could crash the delivery
906 process if the message IDs didn't exist for some reason. When
907 using 'split_spool_directory=yes' the construction of the spool
908 file name failed already, exposing the same netto behaviour.
909
f38917cc
JH
910JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
911 mime_regex ACL conditions.
912
895fbaf2
JH
913JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
914 to DSN fail messages (bounces): remote IP, remote greeting, remote response
915 to HELO, local diagnostic string.
916
805bb5c3
JH
917JH/05 Downgrade message for a TLS-certificate-based authentication fail from
918 log line to debug. Even when configured with a tls authenticator many
919 client connections are expected to not authenticate in this way, so
920 an authenticate fail is not an error.
921
56c2a7be
HSHR
922HS/02 Add the Exim version string to the process info. This way exiwhat
923 gives some more detail about the running daemon.
924
4c04137d 925JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
926 matter for fast-change records such as DNSBLs.
927
6f6dedcc
JH
928JH/07 Bug 1678: Always record an interface option value, if set, as part of a
929 retry record, even if constant. There may be multiple transports with
930 different interface settings and the retry behaviour needs to be kept
931 distinct.
932
0f557e90
JH
933JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
934
935JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
936
ec0eb1a3
JH
937JH/10 Bug 840: fix log_defer_output option of pipe transport
938
41e93589
JH
939JH/11 Bug 830: use same host for all RCPTS of a message, even under
940 hosts_randomize. This matters a lot when combined with mua_wrapper.
941
98b98887 942JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
943 ${quote_pgsql:<string>} operator.
944
98b98887
JH
945JH/13 Bug 1708: avoid misaligned access in cached lookup.
946
858e91c2
JH
947JH/14 Change header file name for freeradius-client. Relevant if compiling
948 with Radius support; from the Gentoo tree and checked under Fedora.
949
950JH/15 Bug 1712: Introduce $prdr_requested flag variable
951
6ff55e50
JH
952JH/16 Bug 1714: Permit an empty string as expansion result for transport
953 option transport_filter, meaning no filtering.
954
3b957582
JB
955JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
956
23f3dc67
JH
957JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
958 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 959 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
960 If a server certificate is not supplied (via tls_certificate) an error is
961 logged, and clients will find TLS connections fail on startup. Presumably
962 they will retry in-clear.
963 Packagers of Exim are strongly encouraged to create a server certificate
964 at installation time.
965
240c288f
JH
966HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
967 with the $config_file variable.
968
5ef5dd52
JB
969JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
970 in transport context, after the attempt, and per-recipient. The latter type
971 is per host attempted. The event data is the error message, and the errno
972 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 973 and the trailing two digits of the smtp 4xx response.
5ef5dd52 974
e161710d
GF
975GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
976 to write to mainlog (or rejectlog, paniclog) in the window between file
977 creation and permissions/ownership being changed. Particularly affects
978 installations where exicyclog is run as root, rather than exim user;
979 result is that the running daemon panics and dies.
980
a159f203
JH
981JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
982
7f06582c
JH
983JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
984 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
985 "pri" and "weight". Note that the previous implicit priority given by the
986 list order is no longer honoured.
987
4c04137d 988JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
989 for DKIM processing.
990
f0989ec0
JH
991JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
992 by defining SUPPORT_SOCKS.
74f150bf 993
cee5f132
JH
994JH/26 Move PROXY support from Experimental to mainline, enabled for a build
995 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
996 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
997 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 998
8c5d388a
JH
999JH/27 Move Internationalisation support from Experimental to mainline, enabled
1000 for a build by defining SUPPORT_I18N
1001
2d8d625b
JH
1002JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
1003 of the query string, and make ${quote_redis:} do that quoting.
1004
0cbf2b82
JH
1005JH/29 Move Events support from Experimental to mainline, enabled by default
1006 and removable for a build by defining DISABLE_EVENT.
1007
f2f2c91b
JH
1008JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
1009
ce325893
JH
1010JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
1011 cached by the daemon.
1012
de78e2d5
JH
1013JH/32 Move Redis support from Experimental to mainline, enabled for a build
1014 by defining LOOKUP_REDIS. The libhiredis library is required.
1015
379ba7d0
JH
1016JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
1017 keys are given for lookup.
1018
f444c2c7
JH
1019JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
1020 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
1021 only supported when built with TLS support. The PolarSSL SHA routines
1022 are still used when the TLS library is too old for convenient support.
f444c2c7 1023
a57b6200
JH
1024JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
1025 openssl_options), for security. OpenSSL forces this from version 1.1.0
1026 server-side so match that on older versions.
1027
07c73177 1028JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1029 allocation for $value could be released as the expansion processing
07c73177 1030 concluded, but leaving the global pointer active for it.
fa01e4f8 1031
4f6ae5c3
JH
1032JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1033 and to use the domains and local_parts ACL conditions.
1034
1bc460a6
JH
1035JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1036 incorrectly not doubled on cutthrough transmission, hence seen as a
1037 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1038 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1039 via the normal store-and-forward channel. This could result in duplicates
1040 received - but deduplicating mailstores were liable to retain only the
1041 initial truncated version.
1042
ab9152ff 1043JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1044
67e87fcf
JH
1045JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1046
ab9152ff
JH
1047JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1048 we're in there, support oversigning also; bug 1309.
1049
af483912
JH
1050JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1051
bc3c7bb7 1052HS/04 Add support for keep_environment and add_environment options.
df3def24 1053
13559da6
JH
1054JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1055 either intentional arithmetic overflow during PRNG, or testing config-
1056 induced overflows.
1057
59eaad2b
JH
1058JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1059 delivery resulted in actual delivery. Cancel cutthrough before DATA
1060 stage.
1061
f9334a28
JH
1062JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1063 rejects a recipient: pass the reject to the originator.
1064
dc8091e7
JH
1065JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1066 Many were false-positives and ignorable, but it's worth fixing the
1067 former class.
1068
dfe7d917
JH
1069JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1070 for the new environment-manipulation done at startup. Move the routines
1071 from being local to tls.c to being global via the os.c file.
1072
93cc2d6e
JH
1073JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1074 an extract embedded as result-arg for a map, the first arg for extract
1075 is unavailable so we cannot tell if this is a numbered or keyed
1076 extraction. Accept either.
1077
13559da6 1078
9c695f6d
JH
1079Exim version 4.86
1080-----------------
4c57a40e 1081
9c695f6d
JH
1082JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1083 expanded.
1084
506900af
JH
1085JH/02 The smtp transport option "multi_domain" is now expanded.
1086
ad07e9ad
JH
1087JH/03 The smtp transport now requests PRDR by default, if the server offers
1088 it.
1089
01a4a5c5 1090JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1091 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1092 can be used to disable this per-host. The build option
1093 EXPERIMENTAL_CERTNAMES is withdrawn.
1094
cb1d7830 1095JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1096 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1097 For GnuTLS, only version 3.0.20 or later.
1098
610ff438 1099JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1100 (but not required) by default. The verification status is now logged by
1101 default, for both outbound TLS and client-certificate supplying inbound
1102 TLS connections
610ff438 1103
f926e272
JH
1104JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1105 sites use this now.
1106
50dc7409
JH
1107JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1108 Status Notification (bounce) messages are now MIME format per RFC 3464.
1109 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1110 under the control of the dsn_advertise_hosts option, and routers may
1111 have a dsn_lasthop option.
1112
0f0c8159
JH
1113JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1114 default, modifiable by a malware= option. The list separator for
23763898 1115 the options can now be changed in the usual way. Bug 68.
4e71661f 1116
1ad6489e
JH
1117JH/10 The smtp_receive_timeout main option is now expanded before use.
1118
aeaf5db3
JH
1119JH/11 The incoming_interface log option now also enables logging of the
1120 local interface on delivery outgoing connections.
1121
5032d1cf
JH
1122JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1123 if the interface and destination host and port all match.
1124
7e8360e6
JH
1125JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1126 /defer_ok option.
1127
c5f280e2
AL
1128JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1129 Patch from Andrew Lewis.
1130
fd4d8871 1131JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1132 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1133 modifiers per server. Patch originally by <rommer@active.by>.
1134
1135JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1136 and remote servers. Remote servers can be IPv6 addresses, and
1137 specify a port-range.
fd4d8871 1138
23763898
JH
1139JH/17 Bug 68: The spamd_address main option now supports an optional
1140 timeout value per server.
1141
2ad78978
JH
1142JH/18 Bug 1581: Router and transport options headers_add/remove can
1143 now have the list separator specified.
1144
8a512ed5 1145JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1146 option values.
8a512ed5 1147
82c0c8ea 1148JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1149 under OpenSSL.
1150
cc00f4af
JH
1151JH/21 Support for the A6 type of dns record is withdrawn.
1152
82c0c8ea
JH
1153JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1154 rather than the verbs used.
1155
b980ed83
JH
1156JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1157 from 255 to 1024 chars.
1158
6c9ed72e
JH
1159JH/24 Verification callouts now attempt to use TLS by default.
1160
cfab9d68 1161HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1162 are generic router options now. The defaults didn't change.
50dc7409 1163
f846c8f5
JH
1164JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1165 Original patch from Alexander Shikoff, worked over by JH.
1166
fd4c285c
HSHR
1167HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1168 files if ZCAT_COMMAND is not executable.
1169
4c04137d 1170JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1171
d2a2c69b
JH
1172JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1173
8241d8dd
JH
1174JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1175 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1176 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1177 (and we were inconsistent anyway for A-only vs AAAA+A).
1178
1f12df4d
JH
1179JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1180
1f155f8e
JH
1181JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1182 when evaluating $sender_host_dnssec.
1183
1705dd20
JH
1184JH/31 Check the HELO verification lookup for DNSSEC, adding new
1185 $sender_helo_dnssec variable.
1186
038597d2
PP
1187JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1188
474f71bf
JH
1189JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1190
7137ca4b
JH
1191JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1192
dcb1095c
JH
1193JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1194 documented as working, but never had. Support all but $spam_report.
1195
2f460950
JH
1196JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1197 added for tls authenticator.
1198
2f680c0c
HSHR
1199HS/03 Add perl_taintmode main config option
1200
9c695f6d 1201
e449c3b0
TL
1202Exim version 4.85
1203-----------------
4c57a40e 1204
e449c3b0
TL
1205TL/01 When running the test suite, the README says that variables such as
1206 no_msglog_check are global and can be placed anywhere in a specific
1207 test's script, however it was observed that placement needed to be near
1208 the beginning for it to behave that way. Changed the runtest perl
1209 script to read through the entire script once to detect and set these
1210 variables, reset to the beginning of the script, and then run through
1211 the script parsing/test process like normal.
1212
ac20058f
TL
1213TL/02 The BSD's have an arc4random API. One of the functions to induce
1214 adding randomness was arc4random_stir(), but it has been removed in
1215 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1216 function when detected.
1217
a9b8ec8b
JH
1218JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1219 cause callback expansion.
1220
6286d7c4
TL
1221TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1222 syntax errors in an expansion can be treated as a string instead of
1223 logging or causing an error, due to the internal use of bool_lax
1224 instead of bool when processing it.
1225
0f06b4f2 1226JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1227 server certificates when making smtp deliveries.
1228
be36e572
JH
1229JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1230
ac4ef9bd
JH
1231JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1232
0eb51736
TL
1233TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1234
c713ca4b
TL
1235TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1236 Merged patch from Sebastian Wiedenroth.
e449c3b0 1237
bd21a787
WB
1238JH/05 Fix results-pipe from transport process. Several recipients, combined
1239 with certificate use, exposed issues where response data items split
1240 over buffer boundaries were not parsed properly. This eventually
1241 resulted in duplicates being sent. This issue only became common enough
4c04137d 1242 to notice due to the introduction of connection certificate information,
bd21a787
WB
1243 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1244
8bc732e8
JH
1245JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1246 size buffer was used, resulting in syntax errors when an expansion
1247 exceeded it.
1248
a7fec7a7
JH
1249JH/07 Add support for directories of certificates when compiled with a GnuTLS
1250 version 3.3.6 or later.
1251
4c04137d 1252JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1253 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1254 both become "event_action", the variables become $event_name, $event_data
aec45841 1255 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1256 routers, transports and related events. The tls:cert event is now also
1257 raised for inbound connections, if the main configuration event_action
1258 option is defined.
774ef2d7 1259
eca4debb
TL
1260TL/06 In test suite, disable OCSP for old versions of openssl which contained
1261 early OCSP support, but no stapling (appears to be less than 1.0.0).
1262
8d692470
JH
1263JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1264 server certificate names available under the smtp transport option
1265 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1266 matches.
1267
e9477a08
JH
1268JH/10 Time-related extraction expansions from certificates now use the main
1269 option "timezone" setting for output formatting, and are consistent
1270 between OpenSSL and GnuTLS compilations. Bug 1541.
1271
ad4c5ff9
JH
1272JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1273 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1274
1275JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1276 include certificate info, eximon was claiming there were spoolfile
1277 syntax errors.
1278
3394b36a 1279JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1280
1281JH/14 Log delivery-related information more consistently, using the sequence
1282 "H=<name> [<ip>]" wherever possible.
1283
3394b36a
TL
1284TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1285 are problematic for Debian distribution, omit them from the release
1286 tarball.
1287
ad4c5ff9
JH
1288JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1289
4c04137d 1290JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1291 Bug 1561.
1292
1293JH/17 Fix a null-indirection in certextract expansions when a nondefault
1294 output list separator was used.
1295
8bc732e8 1296
1f0ebb98
TL
1297Exim version 4.84
1298-----------------
09728d20
TL
1299TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1300 checkers that were complaining about end of non-void function with no
1301 return.
1f0ebb98 1302
a612424f 1303JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1304 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1305
1306JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1307
1308TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1309 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1310
1f0ebb98 1311
c0e56233
TF
1312Exim version 4.83
1313-----------------
1314
1315TF/01 Correctly close the server side of TLS when forking for delivery.
1316
1317 When a message was received over SMTP with TLS, Exim failed to clear up
1318 the incoming connection properly after forking off the child process to
1319 deliver the message. In some situations the subsequent outgoing
1320 delivery connection happened to have the same fd number as the incoming
1321 connection previously had. Exim would try to use TLS and fail, logging
1322 a "Bad file descriptor" error.
1323
7245734e
TF
1324TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1325 utilities have not been installed.
1326
fd5dad68
JH
1327JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1328 temporary space as the ACL may create new global variables.
1329
5428a946
TL
1330TL/01 LDAP support uses per connection or global context settings, depending
1331 upon the detected version of the libraries at build time.
1332
a3c86431
TL
1333TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1334 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1335 were a direct connection from the outside internet. PPv2 support was
1336 updated based on HAProxy spec change in May 2014.
a3c86431 1337
aa26e137
JH
1338JH/02 Add ${listextract {number}{list}{success}{fail}}.
1339
5a1b8443
WB
1340TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1341 Properly escape header and check for NULL return.
1342
72c9e342
PP
1343PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1344 not dns_use_dnssec.
1345
76f44207
WB
1346JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1347
770747fd
MFM
1348TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1349 characters in header names, implemented as a verify condition.
1350 Contributed by Michael Fischer v. Mollard.
1351
8ddef691 1352TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1353 results permerror and temperror. Previous values are deprecated but
1354 still accepted. In a future release, err_perm and err_temp will be
1355 completely removed, which will be a backward incompatibility if the
1356 ACL tests for either of these two old results. Patch contributed by
8ddef691 1357 user bes-internal on the mailing list.
c0e56233 1358
b9c2e32f
AR
1359JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1360
e45a1c37
JH
1361JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1362 selectors, in both main and reject logs.
1363
67d81c10
JH
1364JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1365 failed delivery.
1366
b1f8e4f8
JH
1367JH/07 Add malware type "sock" for talking to simple daemon.
1368
511a6c14 1369JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1370
1371JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1372 routers/transports under cutthrough routing.
214042d2 1373
51c7471d
JH
1374JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1375 numbers. Touch up "bool" conditional to keep the same definition.
1376
3695be34
TL
1377TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1378
1e06383a
TL
1379JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1380
76146973
JH
1381JH/12 Expand items in router/transport headers_add or headers_remove lists
1382 individually rather than the list as a whole. Bug 1452.
1383
1384 Required for reasonable handling of multiple headers_ options when
1385 they may be empty; requires that headers_remove items with embedded
1386 colons must have them doubled (or the list-separator changed).
1387
8c8b8274
TL
1388TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1389 view the policy declared in the DMARC record. Currently, $dmarc_status
1390 is a combined value of both the record presence and the result of the
1391 analysis.
b1f8e4f8 1392
35aba663
JH
1393JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1394
8c51eead 1395JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1396 dnslookup router and the smtp transport (applying to the forward
1397 lookup).
8c51eead 1398
deae092e
HS
1399TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1400 of ldap servers used for a specific lookup. Patch provided by Heiko
1401 Schlichting.
35aba663 1402
fd3b6a4a 1403JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1404 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1405
8d91c6dc
LT
1406TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1407 Patch submitted by Lars Timman.
1408
2b4a568d
JH
1409JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1410
d2af03f4
HS
1411TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1412 Requires trusted mode and valid format message id, aborts otherwise.
1413 Patch contributed by Heiko Schlichting.
1414
9d1c15ef
JH
1415JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1416 certextract with support for various fields. Bug 1358.
1417
44662487
JH
1418JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1419 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1420 hosts_request_ocsp.
1421
ed3bba5f 1422JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1423 operate on certificate variables to give certificate fingerprints
9ef9101c 1424 Also new ${sha256:cert_variable}.
44662487 1425
8ccd00b1
JH
1426JH/23 The PRDR feature is moved from being Experimental into the mainline.
1427
8ded8589
TL
1428TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1429 Christian Aistleitner.
1430
f2de3a33
JH
1431JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1432
6eb02f88
TL
1433TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1434 file. Patch from Wolfgang Breyha.
1435
00bff6f6
JH
1436JH/25 Expand the coverage of the delivery $host and $host_address to
1437 client authenticators run in verify callout. Bug 1476.
1438
071c51f7
JH
1439JH/26 Port service names are now accepted for tls_on_connect_ports, to
1440 align with daemon_smtp_ports. Bug 72.
1441
a6d4c44e
TF
1442TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1443 support and error reporting did not work properly.
1444
3ae173e7
ACK
1445TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1446 and is readable. Patch from Andrew Colin Kissa.
1447
c13d09b8
TL
1448TL/14 Enhance documentation of ${run expansion and how it parses the
1449 commandline after expansion, particularly in the case when an
1450 unquoted variable expansion results in an empty value.
1451
0df4ab80
JH
1452JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1453
66be95e0
PP
1454PP/02 Fix internal collision of T_APL on systems which support RFC3123
1455 by renaming away from it. Addresses GH issue 15, reported by
1456 Jasper Wallace.
1457
1bd0d12b
JH
1458JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1459
0de7239e
TL
1460TL/15 SECURITY: prevent double expansion in math comparison functions
1461 (can expand unsanitized data). Not remotely exploitable.
1462 CVE-2014-2972
1463
fd3b6a4a 1464
2c422e6f 1465Exim version 4.82
98a90c36
PP
1466-----------------
1467
1468PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1469
12f69989
PP
1470PP/02 Make -n do something, by making it not do something.
1471 When combined with -bP, the name of an option is not output.
1472
54c90be1
PP
1473PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1474 by GnuTLS.
1475
1f4a55da
PP
1476PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1477 $sender_host_name and config options to manage this, and basic check
1478 routines.
1479
13363eba 1480PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1481
66645890 1482PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1483 (Only plugin which currently uses this is kerberos4, which nobody should
1484 be using, but we should make it available and other future plugins might
1485 conceivably use it, even though it would break NAT; stuff *should* be
1486 using channel bindings instead).
66645890 1487
a3fb9793 1488PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1489 name; added for Sendmail compatibility; requires admin caller.
1490 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1491 just ignore it); requires trusted caller.
a3fb9793 1492 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1493 Bugzilla 1117.
a3fb9793 1494
d27f98fe 1495TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1496
6822b909
TL
1497TL/02 Add +smtp_confirmation as a default logging option.
1498
e7568d51
TL
1499TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1500 Patch by Magnus Holmgren from 2007-02-20.
1501
ae0e32ee 1502TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1503 Bugzilla 1283 - Spec typo.
97f42f10 1504 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1505
1506TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1507
e2658fff
TL
1508TL/06 Add Experimental DMARC support using libopendmarc libraries.
1509
83712b39
TL
1510TL/07 Fix an out of order global option causing a segfault. Reported to dev
1511 mailing list by by Dmitry Isaikin.
1512
976b7e9f
JH
1513JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1514
be4a1376
JH
1515JH/02 Support "G" suffix to numbers in ${if comparisons.
1516
ec4b68e5
PP
1517PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1518
d7148a07
NM
1519NM/01 Bugzilla 1197 - Spec typo
1520 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1521
585121e2 1522JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1523
2519e60d
TL
1524PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1525 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1526 function.
a5f239e4 1527
13d08c90
PP
1528PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1529 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1530
bef3ea7f
JH
1531JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1532 "acl {{name}{arg}...}", and optional args on acl condition
1533 "acl = name arg..."
a5f239e4 1534
846726c5
JH
1535JH/05 Permit multiple router/transport headers_add/remove lines.
1536
3a796370
JH
1537JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1538
ea722490 1539JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1540 Performance patch from Paul Fisher. Bugzilla 1262.
1541
b1b05573
JH
1542JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1543 Bugzilla 884.
1544
362145b5
JH
1545JH/09 Add $headers_added variable, with content from use of ACL modifier
1546 add_header (but not yet added to the message). Bugzilla 199.
1547
3c0a92dc
JH
1548JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1549 Pulled from Bugzilla 817 by Wolfgang Breyha.
1550
6d7c6175
PP
1551PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1552 CVE-2012-5671
e78e6ecf 1553 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1554
6f123593
JH
1555JH/11 Add A= logging on delivery lines, and a client_set_id option on
1556 authenticators.
1557
c8e2fc1e
JH
1558JH/12 Add optional authenticated_sender logging to A= and a log_selector
1559 for control.
1560
005ac57f
PP
1561PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1562
3f1df0e3
PP
1563PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1564 advertise SMTP AUTH mechanism to us, instead of a generic
1565 protocol violation error. Also, make Exim more robust to bad
1566 data from the Dovecot auth socket.
1567
67bd1ab3
TF
1568TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1569
1570 When a queue runner is handling a message, Exim first routes the
1571 recipient addresses, during which it prunes them based on the retry
1572 hints database. After that it attempts to deliver the message to
1573 any remaining recipients. It then updates the hints database using
1574 the retry rules.
1575
1576 So if a recipient address works intermittently, it can get repeatedly
1577 deferred at routing time. The retry hints record remains fresh so the
1578 address never reaches the final cutoff time.
1579
1580 This is a fairly common occurrence when a user is bumping up against
1581 their storage quota. Exim had some logic in its local delivery code
1582 to deal with this. However it did not apply to per-recipient defers
1583 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1584
1ddeb334
TF
1585 This change adds a proper retry rule check during routing so that the
1586 final cutoff time is checked against the message's age. We only do
1587 this check if there is an address retry record and there is not a
1588 domain retry record; this implies that previous attempts to handle
1589 the address had the retry_use_local_parts option turned on. We use
1590 this as an approximation for the destination being like a local
1591 delivery, as in LMTP.
67bd1ab3
TF
1592
1593 I suspect this new check makes the old local delivery cutoff check
1594 redundant, but I have not verified this so I left the code in place.
1595
326cdc37
TF
1596TF/02 Correct gecos expansion when From: is a prefix of the username.
1597
1598 Test 0254 submits a message to Exim with the header
1599
1600 Resent-From: f
1601
1602 When I ran the test suite under the user fanf2, Exim expanded
1603 the header to contain my full name, whereas it should have added
1604 a Resent-Sender: header. It erroneously treats any prefix of the
1605 username as equal to the username.
1606
1607 This change corrects that bug.
1608
f62514b3
GF
1609GF/01 DCC debug and logging tidyup
1610 Error conditions log to paniclog rather than rejectlog.
1611 Debug lines prefixed by "DCC: " to remove any ambiguity.
1612
eb505532
TF
1613TF/03 Avoid unnecessary rebuilds of lookup-related code.
1614
14c7b357
PP
1615PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1616 Bug spotted by Jeremy Harris; was flawed since initial commit.
1617 Would have resulted in OCSP responses post-SNI triggering an Exim
1618 NULL dereference and crash.
1619
94eaf700
PP
1620JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1621
6f5a440a
PP
1622PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1623 Bug detection, analysis and fix by Samuel Thibault.
1624 Bugzilla 1331, Debian bug #698092.
1625
514ee161
SC
1626SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1627
fd98a5c6
JH
1628JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1629 Server implementation by Todd Lyons, client by JH.
1630 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1631 config variable "prdr_enable" controls whether the server
1632 advertises the facility. If the client requests PRDR a new
1633 acl_data_smtp_prdr ACL is called once for each recipient, after
1634 the body content is received and before the acl_smtp_data ACL.
4c04137d 1635 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1636 on the smtp transport, and the server advertisement.
1637 Default client logging of deliveries and rejections involving
1638 PRDR are flagged with the string "PRDR".
1639
035c7f1e
PP
1640PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1641 fclose(). Diagnosis by Todd Lyons.
1642
ff284120
PP
1643PP/17 Update configure.default to handle IPv6 localhost better.
1644 Patch by Alain Williams (plus minor tweaks).
1645 Bugzilla 880.
1646
26e72755
PP
1647PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1648 This is now consistent with GnuTLS, and is now documented: the
1649 previous undocumented portable approach to treating the option as
1650 unset was to force an expansion failure. That still works, and
1651 an empty string is now equivalent.
1652
0fbd9bff
PP
1653PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1654 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1655 not performing validation itself.
1656
700d22f3
PP
1657PP/20 Added force_command boolean option to pipe transport.
1658 Patch from Nick Koston, of cPanel Inc.
1659
fcc8e047
JH
1660JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1661 Bugzilla 321, 823.
1662
4c04137d 1663TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1664
8c020188
PP
1665PP/21 Fix eximon continuous updating with timestamped log-files.
1666 Broken in a format-string cleanup in 4.80, missed when I repaired the
1667 other false fix of the same issue.
1668 Report and fix from Heiko Schlichting.
1669 Bugzilla 1363.
1670
d13cdd30
PP
1671PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1672 Report from Prashanth Katuri.
1673
e2fbf4a2
PP
1674PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1675 It's SecureTransport, so affects any MacOS clients which use the
1676 system-integrated TLS libraries, including email clients.
1677
f4c1088b
PP
1678PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1679 using a MIME ACL for non-SMTP local injection.
1680 Report and assistance in diagnosis by Warren Baker.
1681
c5c2182f
PP
1682TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1683
73431ca9
JH
1684JH/16 Fix comparisons for 64b. Bugzilla 1385.
1685
2d07a215
TL
1686TL/09 Add expansion variable $authenticated_fail_id to keep track of
1687 last id that failed so it may be referenced in subsequent ACL's.
1688
a30a8861
TL
1689TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1690 Alexander Miroch.
1691
33382dd9
TL
1692TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1693 ldap library initialization, allowing self-signed CA's to be
1694 used. Also properly sets require_cert option later in code by
1695 using NULL (global ldap config) instead of ldap handle (per
1696 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1697
046172e6
TL
1698TL/12 Enhanced documentation in the ratelimit.pl script provided in
1699 the src/util/ subdirectory.
1700
581d7bee 1701TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1702 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1703 EXPERIMENTAL_TPDA.
1704
1705TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1706 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1707 redis_servers = needs to be configured which will be used by the redis
1708 lookup. Patch from Warren Baker, of The Packet Hub.
1709
237b2cf2
TL
1710TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1711
9fc5a352
TL
1712TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1713 hostname or reverse DNS when processing a host list. Used suggestions
1714 from multiple comments on this bug.
1a7b746d 1715
b10e4ec2
TL
1716TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1717
e2cebd74
TL
1718TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1719 Missed a few lines, added it to make the runtest require no keyboard
1720 interaction.
1721
1722TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1723 contains upper case chars. Make router use caseful_local_part.
1724
2519e60d
TL
1725TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1726 support when GnuTLS has been built with p11-kit.
1727
e78e6ecf 1728
4263f395
PP
1729Exim version 4.80.1
1730-------------------
1731
1732PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1733 CVE-2012-5671
2c422e6f 1734 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1735
ea722490 1736
b1770b6e 1737Exim version 4.80
0599f9cf
PP
1738-----------------
1739
1740PP/01 Handle short writes when writing local log-files.
1741 In practice, only affects FreeBSD (8 onwards).
1742 Bugzilla 1053, with thanks to Dmitry Isaikin.
1743
23c7e742
NM
1744NM/01 Bugzilla 949 - Documentation tweak
1745
b322aac8
NM
1746NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1747 improved.
1748
4a891427
NM
1749NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1750
c1e794ba 1751PP/02 Implemented gsasl authenticator.
b322aac8 1752
97753960
PP
1753PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1754
1755PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1756 `pkg-config foo` for cflags/libs.
1757
df6303fa
PP
1758PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1759 with rest of GSASL and with heimdal_gssapi.
1760
7e6a8985
PP
1761PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1762 `pkg-config foo` for cflags/libs for the TLS implementation.
1763
f1e05cc7 1764PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1765 properties get this fed in as external SSF. A number of robustness
1766 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1767
4c287009
PP
1768PP/08 cyrus_sasl server now expands the server_realm option.
1769
b98bb9ac
PP
1770PP/09 Bugzilla 1214 - Log authentication information in reject log.
1771 Patch by Jeremy Harris.
1772
4a6a987a
PP
1773PP/10 Added dbmjz lookup type.
1774
c45dd180 1775PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1776
7db8d074
PP
1777PP/12 MAIL args handles TAB as well as SP, for better interop with
1778 non-compliant senders.
1779 Analysis and variant patch by Todd Lyons.
1780
eae0036b 1781NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1782 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1783 Patch from Dirk Mueller <dmueller@suse.com>
1784
dec5017e
PP
1785PP/13 tls_peerdn now print-escaped for spool files.
1786 Observed some $tls_peerdn in wild which contained \n, which resulted
1787 in spool file corruption.
1788
c80c5570
PP
1789PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1790 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1791 or write after TLS renegotiation, which otherwise led to messages
1792 "Got SSL error 2".
1793
076b11e2
PP
1794TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1795 as a tracking header (ie: a signed header comes before the signature).
1796 Patch from Wolfgang Breyha.
1797
5407bfff
JH
1798JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1799 comma-sep list; embedded commas doubled.
1800
9e45c72b
PP
1801JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1802
e74376d8
PP
1803PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1804 diagnostics.
1805 Report and patch from Dmitry Banschikov.
1806
4c04137d 1807PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1808 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1809 failures. We appear to now support TLS1.1+ with Exim.
1810
7be682ca
PP
1811PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1812 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1813 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1814 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1815
ef840681
PP
1816PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1817 NULL dereference. Report and patch from Alun Jones.
1818
5bfb4cdf
PP
1819PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1820 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1821 Not seeing resolver debug output on NetBSD, but suspect this is a
1822 resolver implementation change.
1823
c6e95d22
PP
1824PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1825 Left warnings. Added "eximon gdb" invocation mode.
1826
9cbad13b
PP
1827PP/21 Defaulting "accept_8bitmime" to true, not false.
1828
9ee44efb
PP
1829PP/22 Added -bw for inetd wait mode support.
1830
6a6084f8
PP
1831PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1832 locate the relevant includes and libraries. Made this the default.
1833
12dd53c7
PP
1834PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1835 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1836
9e45c72b 1837JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1838 This may cause build issues on older platforms.
1839
17c76198
PP
1840PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1841 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1842 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1843 Added SNI support via GnuTLS too.
af3498d6 1844 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1845
53947857 1846PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1847
eae0036b 1848PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1849 Applied second patch from Janne, implementing suggestion to default
1850 multiple-strings-in-record handling to match SPF spec.
eae0036b 1851
9e45c72b 1852JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1853
7390e768
PP
1854PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1855 read-only, out of scope).
1856 Patch from Wolfgang Breyha, report from Stuart Northfield.
1857
08488c86
PP
1858PP/29 Fix three issues highlighted by clang analyser static analysis.
1859 Only crash-plausible issue would require the Cambridge-specific
1860 iplookup router and a misconfiguration.
1861 Report from Marcin Mirosław.
1862
6475bd82
PP
1863PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1864
81f91683
PP
1865PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1866 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1867 As part of this, removing so much warning spew let me fix some minor
1868 real issues in debug logging.
1869
5779e6aa
PP
1870PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1871 assignment on my part. Fixed.
1872
3375e053
PP
1873PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1874 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1875 Janne Snabb (who went above and beyond: thank you).
1876
1877PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1878 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1879 relatively easy to get wrong. Should also expose TLS library linkage
1880 problems.
3375e053 1881
9d26b8c0
PP
1882PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1883 64-bit ${eval} (JH/03).
1884
57eb9e91 1885PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1886 GNU libc to support some of the 64-bit stuff, should not lead to
1887 conflicts. Defined before os.h is pulled in, so if a given platform
1888 needs to override this, it can.
1889
16880d1a
PP
1890PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1891 protection layer was required, which is not implemented.
1892 Bugzilla 1254, patch from Wolfgang Breyha.
1893
a799883d
PP
1894PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1895 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1896 tls_dhparam take prime identifiers. Also unbreak combination of
1897 OpenSSL+DH_params+TLSSNI.
1898
3ecab157 1899PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1900
0599f9cf 1901
867fcbf5
PP
1902Exim version 4.77
1903-----------------
1904
1905PP/01 Solaris build fix for Oracle's LDAP libraries.
1906 Bugzilla 1109, patch from Stephen Usher.
1907
f1a29782
TF
1908TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1909
ab42bd23
TK
1910TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1911 whitespace trailer
867fcbf5 1912
0ca0cf52
TF
1913TF/02 Fix a couple more cases where we did not log the error message
1914 when unlink() failed. See also change 4.74-TF/03.
1915
921b12ca
TF
1916TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1917 lock up or crash if it happened to be inside a call to libc when it
1918 got a SIGUSR1 from exiwhat.
1919
1920 The SIGUSR1 handler appends the current process status to the process
1921 log which is later printed by exiwhat. It used to use the general
1922 purpose logging code to do this, but several functions it calls are
1923 not safe for signals.
1924
1925 The new output code in the SIGUSR1 handler is specific to the process
1926 log, and simple enough that it's easy to inspect for signal safety.
1927 Removing some special cases also simplifies the general logging code.
1928 Removing the spurious timestamps from the process log simplifies
1929 exiwhat.
1930
c99ce5c9
TF
1931TF/04 Improved ratelimit ACL condition.
1932
1933 The /noupdate option has been deprecated in favour of /readonly which
1934 has clearer semantics. The /leaky, /strict, and /readonly update modes
1935 are mutually exclusive. The update mode is no longer included in the
1936 database key; it just determines when the database is updated. (This
4c04137d 1937 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1938
1939 Exim now checks that the per_* options are used with an update mode that
1940 makes sense for the current ACL. For example, when Exim is processing a
1941 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1942 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1943 must specify per_mail/readonly. If you omit the update mode it defaults to
1944 /leaky where that makes sense (as before) or /readonly where required.
1945
1946 The /noupdate option is now undocumented but still supported for
1947 backwards compatibility. It is equivalent to /readonly except that in
1948 ACLs where /readonly is required you may specify /leaky/noupdate or
1949 /strict/noupdate which are treated the same as /readonly.
1950
1951 A useful new feature is the /count= option. This is a generalization
1952 of the per_byte option, so that you can measure the throughput of other
1953 aggregate values. For example, the per_byte option is now equivalent
1954 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1955
1956 The per_rcpt option has been generalized using the /count= mechanism
1957 (though it's more complicated than the per_byte equivalence). When it is
1958 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1959 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1960 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1961 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1962 Note that using per_rcpt with a non-readonly update mode in more than
1963 one ACL will cause the recipients to be double-counted. (The per_mail
1964 and per_byte options don't have this problem.)
1965
1966 The handling of very low rates has changed slightly. If the computed rate
1967 is less than the event's count (usually one) then this event is the first
1968 after a long gap. In this case the rate is set to the same as this event's
1969 count, so that the first message of a spam run is counted properly.
1970
1971 The major new feature is a mechanism for counting the rate of unique
1972 events. The new per_addr option counts the number of different
1973 recipients that someone has sent messages to in the last time period. It
1974 behaves like per_rcpt if all the recipient addresses are different, but
1975 duplicate recipient addresses do not increase the measured rate. Like
1976 the /count= option this is a general mechanism, so the per_addr option
1977 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1978 example, measure the rate that a client uses different sender addresses
1979 with the options per_mail/unique=$sender_address. There are further
1980 details in the main documentation.
1981
3634fc25
TF
1982TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1983
792e8a19
TF
1984TF/06 Removed a few PCRE remnants.
1985
5901f0ab
TF
1986TF/07 Automatically extract Exim's version number from tags in the git
1987 repository when doing development or release builds.
1988
7f2a2a43
PP
1989PP/02 Raise smtp_cmd_buffer_size to 16kB.
1990 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1991
061b7ebd
PP
1992PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1993 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1994 Bugzilla 97.
1995
e12f8c32
PP
1996PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1997
9e949f00 1998PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1999 Bugzilla 1078. Patch from John Horne.
2000
2001PP/06 Stop make process more reliably on build failure.
2002 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 2003
555ae6af 2004PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
2005 Bugzilla 1089. Patch from Heiko Schlittermann.
2006
2007PP/08 Handle ${run} returning more data than OS pipe buffer size.
2008 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 2009
6f7fe114
PP
2010PP/09 Handle IPv6 addresses with SPF.
2011 Bugzilla 860. Patch from Wolfgang Breyha.
2012
c566dd90
PP
2013PP/10 GnuTLS: support TLS 1.2 & 1.1.
2014 Bugzilla 1156.
89f897c3
PP
2015 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
2016 Bugzilla 1095.
c566dd90 2017
d6cc7c78 2018PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
2019 New compile-time build option, EXPAND_LISTMATCH_RHS.
2020 New expansion conditions, "inlist", "inlisti".
2021
0d0e4455
PP
2022PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
2023
3399bb60 2024PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
2025
2026PP/14 fix log_write() format string regression from TF/03.
2027 Bugzilla 1152. Patch from Dmitry Isaikin.
2028
0ca0cf52 2029
10906672
PP
2030Exim version 4.76
2031-----------------
2032
2033PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2034
754a0503
PP
2035PP/02 Harmonised TLS library version reporting; only show if debugging.
2036 Layout now matches that introduced for other libraries in 4.74 PP/03.
2037
c0c7b2da
PP
2038PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2039
e97d1f08
PP
2040PP/04 New "dns_use_edns0" global option.
2041
084c1d8c
PP
2042PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2043 Bugzilla 1098.
2044
4e7ee012
PP
2045PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2046 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2047
c8d52a00
PP
2048TK/01 Updated PolarSSL code to 0.14.2.
2049 Bugzilla 1097. Patch from Andreas Metzler.
2050
54e7ce4a
PP
2051PP/07 Catch divide-by-zero in ${eval:...}.
2052 Fixes bugzilla 1102.
2053
5ee6f336
PP
2054PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2055 Bugzilla 1104.
2056
c8d52a00 2057TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2058 format-string attack -- SECURITY: remote arbitrary code execution.
2059
2060TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2061 time unintentionally subject to list matching rules, letting the header
2062 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2063 arbitrary string expansion). This allowed for information disclosure.
2064
2065PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2066 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2067
10906672 2068
aa097c4c
NM
2069Exim version 4.75
2070-----------------
2071
4c04137d 2072NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2073 Bugzilla 1073
2074
7f3d9eff
TF
2075TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2076 This fixes portability to compilers other than gcc, notably
2077 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2078
159f52d2
TF
2079TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2080 makefiles for portability to HP-UX and POSIX correctness.
2081
0cc9542a
PP
2082PP/01 Permit LOOKUP_foo enabling on the make command-line.
2083 Also via indented variable definition in the Makefile.
2084 (Debugging by Oliver Heesakkers).
2085
f7274286
PP
2086PP/02 Restore caching of spamd results with expanded spamd_address.
2087 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2088
7b797365
PP
2089PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2090 Improves build reliability. Fix from: Frank Elsner
2091
caacae52
NM
2092NM/02 Fix wide character breakage in the rfc2047 coding
2093 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2094
09dcaba9
NM
2095NM/03 Allow underscore in dnslist lookups
2096 Fixes bug 1026. Patch from Graeme Fowler
2097
bc19a55b
PP
2098PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2099 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2100
bd4c9759
NM
2101NM/04 Fixed exiqgrep to cope with mailq missing size issue
2102 Fixes bug 943.
2103
b72aab72
PP
2104PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2105 is logged, to avoid truncation. Patch from John Horne.
2106
2fe76745
PP
2107PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2108 Patch from Jakob Hirsch.
2109
76aa570c
PP
2110PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2111 SQL string expansion failure details.
2112 Patch from Andrey Oktyabrski.
2113
f1e5fef5
PP
2114PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2115 Patch from Simon Arlott.
2116
4d805ee9
PP
2117PP/09 New lookups functionality failed to compile on old gcc which rejects
2118 extern declarations in function scope.
2119 Patch from Oliver Fleischmann
2120
cd59ab18
PP
2121PP/10 Use sig_atomic_t for flags set from signal handlers.
2122 Check getgroups() return and improve debugging.
2123 Fixed developed for diagnosis in bug 927 (which turned out to be
2124 a kernel bug).
2125
332f5cf3
PP
2126PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2127 Patch from Mark Zealey.
2128
29cfeb94
PP
2129PP/12 Bugzilla 1056: Improved spamd server selection.
2130 Patch from Mark Zealey.
2131
660242ad
PP
2132PP/13 Bugzilla 1086: Deal with maildir quota file races.
2133 Based on patch from Heiko Schlittermann.
2134
bc4bc4c5
PP
2135PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2136 Patch from Uwe Doering, sign-off by Michael Haardt.
2137
2e64baa9
NM
2138NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2139 variable declaration deep within a block. Bug and patch from
2140 Dennis Davis.
2141
4c04137d 2142PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2143
6bac1a9a
PP
2144PP/16 Make DISABLE_DKIM build knob functional.
2145
552193f0
NM
2146NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2147 Patch by Simon Arlott
baeee2c1 2148
1b587e48
TF
2149TF/03 Fix valgrind.h portability to C89 compilers that do not support
2150 variable argument macros. Our copy now differs from upstream.
2151
aa097c4c 2152
8c07b69f
TF
2153Exim version 4.74
2154-----------------
2155
2156TF/01 Failure to get a lock on a hints database can have serious
2157 consequences so log it to the panic log.
2158
c0ea85ab
TF
2159TF/02 Log LMTP confirmation messages in the same way as SMTP,
2160 controlled using the smtp_confirmation log selector.
2161
0761d44e
TF
2162TF/03 Include the error message when we fail to unlink a spool file.
2163
0a349494
PP
2164DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2165 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2166 for maintaining out-of-tree patches for some time.
2167
2168PP/01 Bugzilla 139: Documentation and portability issues.
2169 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2170 Handle per-OS dynamic-module compilation flags.
2171
fea24b2e
PP
2172PP/02 Let /dev/null have normal permissions.
2173 The 4.73 fixes were a little too stringent and complained about the
2174 permissions on /dev/null. Exempt it from some checks.
2175 Reported by Andreas M. Kirchwitz.
2176
6545de78
PP
2177PP/03 Report version information for many libraries, including
2178 Exim version information for dynamically loaded libraries. Created
2179 version.h, now support a version extension string for distributors
2180 who patch heavily. Dynamic module ABI change.
2181
1670ef10
PP
2182PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2183 privilege escalation vulnerability whereby the Exim run-time user
2184 can cause root to append content of the attacker's choosing to
2185 arbitrary files.
2186
c0886197
PP
2187PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2188 (Wolfgang Breyha)
2189
b7487bce
PP
2190PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2191 If dropping privileges for untrusted macros, we disabled normal logging
2192 on the basis that it would fail; for the Exim run-time user, this is not
2193 the case, and it resulted in successful deliveries going unlogged.
2194 Fixed. Reported by Andreas Metzler.
2195
8c07b69f 2196
97fd1e48 2197Exim version 4.73
ed7f7860 2198-----------------
97fd1e48
PP
2199
2200PP/01 Date: & Message-Id: revert to normally being appended to a message,
2201 only prepend for the Resent-* case. Fixes regression introduced in
2202 Exim 4.70 by NM/22 for Bugzilla 607.
2203
6901c596
PP
2204PP/02 Include check_rfc2047_length in configure.default because we're seeing
2205 increasing numbers of administrators be bitten by this.
2206
a8c8d6b5
JJ
2207JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2208
77bb000f
PP
2209PP/03 Bugzilla 994: added openssl_options main configuration option.
2210
a29e5231
PP
2211PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2212
ec5a0394 2213PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2214
55c75993
PP
2215PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2216
453a6645 2217PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2218 without a peer certificate, leading to a segfault because of an
2219 assumption that peers always have certificates. Be a little more
453a6645
PP
2220 paranoid. Problem reported by Martin Tscholak.
2221
8544e77a
PP
2222PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2223 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2224 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2225 CL also introduces -bmalware, various -d+acl logging additions and
2226 more caution in buffer sizes.
8544e77a 2227
83e029d5
PP
2228PP/09 Implemented reverse_ip expansion operator.
2229
ed7f7860
PP
2230PP/10 Bugzilla 937: provide a "debug" ACL control.
2231
7d9f747b
PP
2232PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2233
4b2241d2
PP
2234PP/12 Bugzilla 973: Implement --version.
2235
10385c15
PP
2236PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2237
dbc4b90d
PP
2238PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2239
532be449
PP
2240PP/15 Bugzilla 816: support multiple condition rules on Routers.
2241
6a8de854 2242PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2243 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2244 ignore trailing whitespace.
6a8de854 2245
5dc43717
JJ
2246JJ/02 prevent non-panic DKIM error from being sent to paniclog
2247
2248JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2249 "exim" to be used
55c75993 2250
3346ab01
PP
2251PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2252 Notification from Dr Andrew Aitchison.
2253
491fab4c
PP
2254PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2255 ExtendedDetectionInfo response format.
2256 Notification from John Horne.
2257
13eb9497
PP
2258PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2259 compatible.
2260
2261PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2262 XSL and documented dependency on system catalogs, with examples of how
2263 it normally works.
2264
7f36d675
DW
2265DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2266 access.
2267
c1d94452
DW
2268DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2269 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2270 configuration file which is writeable by the Exim user or group.
2271
e2f5dc15
DW
2272DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2273 of configuration files to cover files specified with the -C option if
2274 they are going to be used with root privileges, not just the default
2275 configuration file.
2276
cd25e41d
DW
2277DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2278 option (effectively making it always true).
2279
261dc43e
DW
2280DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2281 files to be used while preserving root privileges.
2282
fa32850b
DW
2283DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2284 that rogue child processes cannot use them.
2285
79d4bc3d
PP
2286PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2287 run-time user, instead of root.
2288
43236f35 2289PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2290 Exim run-time user without dropping privileges.
2291
fb08281f
DW
2292DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2293 result string, instead of calling string_vformat() twice with the same
2294 arguments.
3346ab01 2295
74935b98
DW
2296DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2297 for other users. Others should always drop root privileges if they use
2298 -C on the command line, even for a whitelisted configure file.
2299
90b6341f
DW
2300DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2301
57730b52
ML
2302NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2303
66581d1e 2304
465e92cf
JJ
2305Exim version 4.72
2306-----------------
2307
453a6645
PP
2308JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2309 $data_path, and $header_path variables; fixed documentation bugs and
2310 typos
465e92cf 2311
453a6645
PP
2312JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2313 exipick to access non-standard spools, including the "frozen" queue
2314 (Finput)
edae0343 2315
9bd3e22c
NM
2316NM/01 Bugzilla 965: Support mysql stored procedures.
2317 Patch from Alain Williams
2318
bb576ff7
NM
2319NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2320
5a1a5845
NM
2321NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2322 Patch from Andreas Metzler
2323
981a9fad
NM
2324NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2325 Patch from Kirill Miazine
2326
7fc497ee
NM
2327NM/05 Bugzilla 671: Added umask to procmail example.
2328
1a41defa
JJ
2329JJ/03 installed exipick 20100323.0, fixing doc bug
2330
a466095c 2331NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2332 directory. Notification and patch from Dan Rosenberg.
a466095c 2333
94a6bd0b
NM
2334TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2335
2336TK/02 Improve log output when DKIM signing operation fails.
2337
2338MH/01 Treat the transport option dkim_domain as a colon separated
2339 list, not as a single string, and sign the message with each element,
2340 omitting multiple occurences of the same signer.
2341
c1b141a8
NM
2342NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2343 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2344
b26eacf1 2345NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2346 Patch by Simon Arlott
2347
179c5980 2348PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2349 MBX locking. Notification from Dan Rosenberg.
179c5980 2350
9bd3e22c 2351
7c6d71af
NM
2352Exim version 4.71
2353-----------------
2354
7d9f747b 2355TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2356
f013fb92
NM
2357NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2358
0eb8eedd
NM
2359NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2360
663ee6d9
NM
2361NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2362
177ebd9b
NM
2363NM/04 Bugzilla 915: Flag broken perl installation during build.
2364
7c6d71af 2365
210f147e
NM
2366Exim version 4.70
2367-----------------
2368
cdd3bb85 2369TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2370 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2371
2372TK/02 Write list of recipients to X-Envelope-Sender header when building
2373 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2374 Hirsch).
cdd3bb85
TK
2375
2376TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2377 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2378 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2379
2380TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2381 by Mark Daniel Reidel <mr@df.eu>.
2382
210f147e
NM
2383NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2384 When building exim an external PCRE library is now needed -
2385 PCRE is a system library on the majority of modern systems.
2386 See entry on PCRE_LIBS in EDITME file.
2387
deafd5b3
NM
2388NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2389 conversation. Added nologin parameter to request.
7d9f747b 2390 Patch contributed by Kirill Miazine.
deafd5b3 2391
089793a4
TF
2392TF/01 Do not log submission mode rewrites if they do not change the address.
2393
5f16ca82
TF
2394TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2395
dae9d94e 2396NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2397 log files in place. Contributed by Roberto Lima.
dae9d94e 2398
7d9f747b 2399NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2400
06864c44
TF
2401TF/03 Bugzilla 615: When checking the local_parts router precondition
2402 after a local_part_suffix or local_part_prefix option, Exim now
2403 does not use the address's named list lookup cache, since this
2404 contains cached lookups for the whole local part.
2405
65a7d8c3 2406NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2407 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2408
23510047 2409TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2410
7d9f747b 2411NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2412
7d8eec3a 2413NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2414 Patch provided by Jan Srzednicki.
6c588e74 2415
89dec7b6
TF
2416TF/05 Leading white space used to be stripped from $spam_report which
2417 wrecked the formatting. Now it is preserved.
5f28a6e8 2418
a99de90c
TF
2419TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2420 that they are available at delivery time.
2421
e2803e40
TF
2422TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2423
7199e1ee
TF
2424TF/08 TLS error reporting now respects the incoming_interface and
2425 incoming_port log selectors.
2426
e276e04b
TF
2427TF/09 Produce a more useful error message if an SMTP transport's hosts
2428 setting expands to an empty string.
2429
ce552449 2430NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2431 Patch provided by Phil Pennock.
ce552449 2432
e765a0f1 2433NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2434 Patch provided by Richard Godbee.
e765a0f1 2435
4f054c63 2436NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2437 acl_smtp_notquit, added index entry.
4f054c63 2438
7d9f747b
PP
2439NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2440 Patch provided by Eugene Bujak.
24c929a2 2441
7d9f747b
PP
2442NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2443 accept(). Patch provided by Maxim Dounin.
cf73943b 2444
b52bc06e 2445NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2446 Patch provided by Phil Pennock.
b52bc06e 2447
447de4b0
NM
2448NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2449
4c69d561 2450NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2451 Patch provided by Brad "anomie" Jorsch.
4c69d561 2452
d5c39246 2453NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2454 Patch provided by Dean Brooks.
9b989985 2455
0b23848a
TK
2456TK/05 Add native DKIM support (does not depend on external libraries).
2457
8f3414a1 2458NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2459 Patch provided by Graeme Fowler.
e2aacdfd 2460
fb6f955d
NM
2461NM/16 Bugzilla 851: Documentation example syntax fix.
2462
2463NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2464
7d9f747b
PP
2465NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2466 lsearch.
dbb0bf41 2467
7d9f747b
PP
2468NM/19 Bugzilla 745: TLS version reporting.
2469 Patch provided by Phil Pennock.
f3766eb5 2470
7d9f747b
PP
2471NM/20 Bugzilla 167: bool: condition support.
2472 Patch provided by Phil Pennock.
36f12725 2473
7d9f747b
PP
2474NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2475 clients. Patch provided by Phil Pennock.
e6060e2c 2476
7d9f747b
PP
2477NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2478 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2479
7d9f747b
PP
2480NM/23 Bugzilla 687: Fix misparses in eximstats.
2481 Patch provided by Heiko Schlittermann.
d5c13d66 2482
7d9f747b
PP
2483NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2484 Patch provided by Heiko Schlittermann.
b2335c0b 2485
7d9f747b 2486NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2487 plus update to original patch.
f4cd9433 2488
7d9f747b 2489NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2490
7d9f747b
PP
2491NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2492 Patch provided by David Brownlee.
8dc71ab3 2493
7d9f747b 2494NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2495
7d9f747b 2496NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2497
7d9f747b 2498NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2499
7d9f747b 2500NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2501
17792b53 2502NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2503 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2504
7d9f747b
PP
2505NM/33 Bugzilla 898: Transport filter timeout fix.
2506 Patch by Todd Rinaldo.
52383f8f 2507
91576cec 2508NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2509 Patch by Serge Demonchaux.
5ca6d115 2510
7d9f747b
PP
2511NM/35 Bugzilla 39: Base64 decode bug fixes.
2512 Patch by Jakob Hirsch.
baee9eee 2513
7d9f747b 2514NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2515
7d9f747b 2516NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2517
7d9f747b 2518NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2519
7d9f747b 2520NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2521
deafd5b3 2522
47db1125
NM
2523Exim version 4.69
2524-----------------
2525
4b3504d0
TK
2526TK/01 Add preliminary DKIM support. Currently requires a forked version of
2527 ALT-N's libdkim that I have put here:
2528 http://duncanthrax.net/exim-experimental/
2529
2530 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2531 were called 'true' and it seems that C99 defines that as a reserved
2532 keyword to be used with 'bool' variable types. That means you could
2533 not include C99-style headers which use bools without triggering
2534 build errors in sieve.c.
2535
81ea09ca
NM
2536NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2537 as mailq or other aliases. Changed the --help handling significantly
2538 to do whats expected. exim_usage() emits usage/help information.
2539
f13cddcb
SC
2540SC/01 Added the -bylocaldomain option to eximstats.
2541
7d9f747b 2542NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2543
7d9f747b 2544NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2545
7d9f747b 2546NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2547
2548
eb4c0de6
PH
2549Exim version 4.68
2550-----------------
2551
2552PH/01 Another patch from the Sieve maintainer.
2553
6a3bceb1
PH
2554PH/02 When an IPv6 address is converted to a string for single-key lookup
2555 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2556 dots are used instead of colons so that keys in lsearch files need not
2557 contain colons. This was done some time before quoting was made available
2558 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2559 (notated using the quote facility) so as to distinguish them from IPv4
2560 keys. This meant that lookups for IP addresses in host lists did not work
2561 for iplsearch lookups.
2562
2563 This has been fixed by arranging for IPv6 addresses to be expressed with
2564 colons if the lookup type is iplsearch. This is not incompatible, because
2565 previously such lookups could never work.
2566
4c04137d 2567 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2568 ordinary lsearch keys. However, making the change in all cases is
2569 incompatible and would probably break a number of configurations.
2570
2e30fa9d
TK
2571TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2572 version.
2573
0806a9c5
MH
2574MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2575 conversion specification without a maximum field width, thereby enabling
2576 a rogue spamd server to cause a buffer overflow. While nobody in their
2577 right mind would setup Exim to query an untrusted spamd server, an
2578 attacker that gains access to a server running spamd could potentially
2579 exploit this vulnerability to run arbitrary code as the Exim user.
2580
ae276964
TK
2581TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2582 $primary_hostname instead of what libspf2 thinks the hosts name is.
2583
0f2cbd1b
MH
2584MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2585 a directory entry by the name of the lookup key. Previously, if a
2586 symlink pointed to a non-existing file or a file in a directory that
2587 Exim lacked permissions to read, a lookup for a key matching that
2588 symlink would fail. Now it is enough that a matching directory entry
2589 exists, symlink or not. (Bugzilla 503.)
2590
2b85bce7
PH
2591PH/03 The body_linecount and body_zerocount variables are now exported in the
2592 local_scan API.
2593
93655c46
PH
2594PH/04 Added the $dnslist_matched variable.
2595
6c512171
PH
2596PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2597 This means they are set thereafter only if the connection becomes
2598 encrypted.
2599
2600PH/06 Added the client_condition to authenticators so that some can be skipped
2601 by clients under certain conditions.
2602
aa6dc513
PH
2603PH/07 The error message for a badly-placed control=no_multiline_responses left
2604 "_responses" off the end of the name.
2605
a96603a0
PH
2606PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2607
8f240103
PH
2608PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2609 (without spaces) instead of just copying the configuration text.
2610
2611PH/10 Added the /noupdate option to the ratelimit ACL condition.
2612
d677b2f2
PH
2613PH/11 Added $max_received_linelength.
2614
d52120f2
PH
2615PH/12 Added +ignore_defer and +include_defer to host lists.
2616
64f2600a
PH
2617PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2618 way in which PCRE > 7.0 is built.
2619
8669f003
PH
2620PH/14 Implemented queue_only_load_latch.
2621
a4dc33a8
PH
2622PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2623 MAIL command. The effect was to mangle the value on 64-bit systems.
2624
d6a60c0f
PH
2625PH/16 Another patch from the Sieve maintainer.
2626
8f128379
PH
2627PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2628
8932dffe
PH
2629PH/18 If a system quota error occurred while trying to create the file for
2630 a maildir delivery, the message "Mailbox is full" was not appended to the
2631 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2632 only to a quota excession during the actual writing of the file.
d6a60c0f 2633
ddea74fa 2634PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2635 characters?) which causes problems in log lines. The DN values are now
2636 passed through string_printing() before being added to log lines.
2637
ddea74fa 2638PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2639 and InterBase are left for another time.)
2640
ddea74fa
PH
2641PH/21 Added message_body_newlines option.
2642
ce9f225c
PH
2643PH/22 Guard against possible overflow in moan_check_errorcopy().
2644
19897d52
PH
2645PH/23 POSIX allows open() to be a macro; guard against that.
2646
bc64a74d
PH
2647PH/24 If the recipient of an error message contained an @ in the local part
2648 (suitably quoted, of course), incorrect values were put in $domain and
2649 $local_part during the evaluation of errors_copy.
2650
eb4c0de6 2651
b4ed4da0
PH
2652Exim version 4.67
2653-----------------
2654
22ad45c9
MH
2655MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2656 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2657 Jan Srzednicki.
2658
b4ed4da0
PH
2659PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2660 issue a MAIL command.
2661
431b7361
PH
2662PH/02 In an ACL statement such as
2663
2664 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2665
2666 if a client was not listed at all, or was listed with a value other than
2667 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2668 the condition was not true (as it should be), so access was not denied.
2669 The bug was that the ! inversion was incorrectly passed on to the second
2670 item. This has been fixed.
2671
2672PH/03 Added additional dnslists conditions == and =& which are different from
2673 = and & when the dns lookup returns more than one IP address.
2674
83da1223
PH
2675PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2676 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2677
54fc8428
PH
2678PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2679 FSYNC, which compiles an option called disable_fsync that allows for
2680 bypassing fsync(). The documentation is heavily laced with warnings.
2681
34c5e8dd
SC
2682SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2683
bbe15da8
PH
2684PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2685 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2686 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2687 including adding "make clean"; (3) Added -fPIC when compiling the test
2688 dynamically loaded module, to get rid of a warning.
2689
0e8a9471
MH
2690MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2691 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2692 = 0s. The bug is otherwise harmless.
2693
f0872424
PH
2694PH/07 There was a bug in the dovecot authenticator such that the value of
2695 $auth1 could be overwritten, and so not correctly preserved, after a
2696 successful authentication. This usually meant that the value preserved by
2697 the server_setid option was incorrect.
2698
b01dd148
PH
2699PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2700
6bf342e1
PH
2701PH/09 Installed PCRE release 7.0.
2702
273f34d0
PH
2703PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2704 run for batched SMTP input. It is now run at the start of every message
2705 in the batch. While fixing this I discovered that the process information
2706 (output by running exiwhat) was not always getting set for -bs and -bS
2707 input. This is fixed, and it now also says "batched" for BSMTP.
2708
cf8b11a5
PH
2709PH/11 Added control=no_pipelining.
2710
41c7c167
PH
2711PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2712 patch, slightly modified), and move the expansion of helo_data till after
2713 the connection is made in the smtp transport (so it can use these
2714 values).
2715
9c57cbc0
PH
2716PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2717
f3f065bb
PH
2718PH/14 Added log_selector = +pid.
2719
047bdd8c
PH
2720PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2721
0ce9abe6
PH
2722PH/16 Add ${if forany and ${if forall.
2723
0e22dfd1
PH
2724PH/17 Added dsn_from option to vary the From: line in DSNs.
2725
4c590bd1
PH
2726PH/18 Flush SMTP output before performing a callout, unless control =
2727 no_callout_flush is set.
2728
09945f1e
PH
2729PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2730 was true (the default) a successful delivery failed to delete the retry
2731 item, thus causing premature timeout of the address. The bug is now
2732 fixed.
2733
c51b8e75
PH
2734PH/20 Added hosts_avoid_pipelining to the smtp transport.
2735
e28326d8 2736PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2737 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2738 other ACL rejections are.
2739
75b1493f
PH
2740PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2741 with slight modification.
2742
7c5214ec
PH
2743PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2744 draft, changing the syntax and factoring some duplicate code".
2745
4311097e
PH
2746PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2747 for deliveries of the second and subsequent messages over the same SMTP
2748 connection.
2749
29f89cad
PH
2750PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2751 ${reduce, with only minor "tidies".
2752
5e687460
SC
2753SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2754
c3611384
PH
2755PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2756 expansion side effects.
2757
5a11a7b4
PH
2758PH/27 When a message times out after an over-quota error from an Exim-imposed
2759 quota, the bounce message says "mailbox is full". This message was not
2760 being given when it was a system quota that was exceeded. It now should
2761 be the same.
2762
0e20aff9
MH
2763MH/03 Made $recipients available in local_scan(). local_scan() already has
2764 better access to the recipient list through recipients_list[], but
2765 $recipients can be useful in postmaster-provided expansion strings.
2766
ca86f471
PH
2767PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2768 in the case of a MAIL command with additional options following the
2769 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2770 were accidentally chopped off.
2771
a14e5636
PH
2772PH/29 SMTP synchronization checks are implemented when a command is read -
2773 there is a check that no more input is waiting when there shouldn't be
2774 any. However, for some commands, a delay in an ACL can mean that it is
2775 some time before the response is written. In this time, more input might
2776 arrive, invalidly. So now there are extra checks after an ACL has run for
2777 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2778 pipelining has not been advertised.
2779
ec95d1a6
PH
2780PH/30 MH's patch to allow iscntrl() characters to be list separators.
2781
42855d71
PH
2782PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2783 returned in the SMTP response when smtp_return_error_details was false.
2784 This has been fixed.
2785
57c2c631
PH
2786PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2787 instead of the C I/O that was originally supplied, because problems were
2788 reported on Solaris.
2789
58c01c94
PH
2790PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2791 Exim which did not show up earlier: it was assuming that a call to
2792 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2793 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2794 was a macro that became an assignment, so it seemed to work. This has
2795 changed to a proper function call with a void return, hence the compile
2796 error. Exim's code has been fixed.
2797
dee5a20a
PH
2798PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2799 cpus.
2800
d2ee6114
PH
2801PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2802
b2d5182b
PH
2803PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2804
79749a79
PH
2805PH/37 If a message is not accepted after it has had an id assigned (e.g.
2806 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2807 "Completed" line in the log. When some messages of this type were
2808 selected by exigrep, they were listed as "not completed". Others were
2809 picked up by some special patterns. I have improved the selection
2810 criteria to be more general.
79749a79 2811
c456d9bb
PH
2812PH/38 The host_find_failed option in the manualroute router can now be set
2813 to "ignore", to completely ignore a host whose IP address cannot be
2814 found. If all hosts are ignored, the behaviour is controlled by the new
2815 host_all_ignored option.
2816
cd9868ec
PH
2817PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2818 homing or because of multiple MX records with /mx) generated more than
2819 one IP address, and the following item turned out to be the local host,
2820 all the secondary addresses of the first item were incorrectly removed
2821 from the list, along with the local host and any following hosts (which
2822 is what is supposed to happen).
2823
ebeaf996
PH
2824PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2825 whoever called Exim into the -H file. In the case of the daemon it was
2826 behaving confusingly. When first started, it used values for whoever
2827 started the daemon, but after a SIGHUP it used the Exim user (because it
2828 calls itself on a restart). I have changed the code so that it now always
2829 uses the Exim user.
2830
2679d413
PH
2831PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2832 message are rejected with the same error (e.g. no authentication or bad
2833 sender address), and a DATA command is nevertheless sent (as can happen
2834 with PIPELINING or a stupid MUA), the error message that was given to the
2835 RCPT commands is included in the rejection of the DATA command. This is
2836 intended to be helpful for MUAs that show only the final error to their
2837 users.
2838
84024b72
PH
2839PH/42 Another patch from the Sieve maintainer.
2840
8005d38e
SC
2841SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2842 Eximstats - Fixed some broken HTML links and added missing column headers
2843 (Jez Hancock).
2844 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2845 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2846
3298c6c6
SC
2847SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2848
a43a27c5
PH
2849PH/43 Yet another patch from the Sieve maintainer.
2850
58eb016e 2851PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2852 the response to the final '.' that terminates a message, but only in the
2853 case where the client has not sent further data following the '.'
2854 (unfortunately, this is allowed). However, in many cases there won't be
2855 any further data because there won't be any more messages to send. A call
2856 to select() can be used: if it shows that the input is "ready", there is
2857 either input waiting, or the socket has been closed. An attempt to read
2858 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2859 would have sent an OK response which the client would never have see.
563b63fa
PH
2860 This could lead to message repetition. This fix should cure that, at
2861 least in a lot of common cases.
58eb016e 2862
b43a74ea
PH
2863PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2864 advertised in response to EHLO.
2865
b4ed4da0 2866
5dd1517f
PH
2867Exim version 4.66
2868-----------------
2869
2870PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2871 fixed by 4.65/MH/01 (is this a record?) are fixed:
2872
2873 (i) An empty string was always treated as zero by the numeric comparison
2874 operators. This behaviour has been restored.
2875
2876 (ii) It is documented that the numeric comparison operators always treat
2877 their arguments as decimal numbers. This was broken in that numbers
2878 starting with 0 were being interpreted as octal.
2879
2880 While fixing these problems I realized that there was another issue that
2881 hadn't been noticed. Values of message_size_limit (both the global option
2882 and the transport option) were treated as octal if they started with 0.
2883 The documentation was vague. These values are now always treated as
2884 decimal, and I will make that clear in the documentation.
2885
2886
93cfa765
TK
2887Exim version 4.65
2888-----------------
2889
2890TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2891 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2892 versions. (#438)
2893
d6066548
MH
2894MH/01 Don't check that the operands of numeric comparison operators are
2895 integers when their expansion is in "skipping" mode (fixes bug
2896 introduced by 4.64-PH/07).
2897
4362ff0d
PH
2898PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2899 child addresses, Exim now panics and dies. Previously, because the count
2900 is held in a short int, deliveries were likely to be lost. As such a
2901 large number of recipients for a single message is ridiculous
2902 (performance will be very, very poor), I have chosen to impose a limit
2903 rather than extend the field.
2904
93cfa765 2905
944e9e9c
TF
2906Exim version 4.64
2907-----------------
aa41d2de 2908
21d74bd9
TK
2909TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2910 leftover -K file (the existence of which was triggered by #402).
2911 While we were at it, introduced process PID as part of the -K
2912 filename. This should rule out race conditions when creating
2913 these files.
2914
2915TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2916 processing considerably. Previous code took too long for large mails,
2917 triggering a timeout which in turn triggers #401.
2918
2919TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2920 in the DK code in transports.c. sendfile() is not really portable,
2921 hence the _LINUX specificness.
944e9e9c
TF
2922
2923TF/01 In the add_headers option to the mail command in an Exim filter,
2924 there was a bug that Exim would claim a syntax error in any
2925 header after the first one which had an odd number of characters
2926 in the field name.
2927
2b1c6e3a
PH
2928PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2929 callout verification, Exim cached a "reject" for the entire domain. This
2930 is correct for most verifications, but it is not correct for a recipient
2931 verification with use_sender or use_postmaster set, because in that case
2932 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2933 case of MAIL FROM:<> rejection from other early rejections (e.g.
2934 rejection of HELO). When verifying a recipient using a non-null MAIL
2935 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2936 Whatever the result of the callout, the value of the domain cache is
2937 left unchanged (for any other kind of callout, getting as far as trying
2938 RCPT means that the domain itself is ok).
2939
1f872c80
PH
2940PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2941 gcc 4.1.1 threw up.
2942
2943PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2944 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2945 session, the daemon ignores ECONNECT errors and logs others; it now
2946 ignores EPIPE as well.
2947
d203e649
PH
2948PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2949 (quoted-printable decoding).
2950
cc2ed8f7 2951PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2952 later the small subsequent patch to fix an introduced bug.
f951fd57 2953
ddfcd446
PH
2954PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2955
d45b1de8
PH
2956PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2957
2958PH/08 An error is now given if message_size_limit is specified negative.
2959
38a0a95f 2960PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2961 to be given (somewhat) arbitrary names.
38a0a95f 2962
a2405d83
JJ
2963JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2964 in 4.64-PH/09.
2965
2966JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2967 miscellaneous code fixes
2968
6ea85e9a
PH
2969PH/10 Added the log_reject_target ACL modifier to specify where to log
2970 rejections.
2971
26da7e20
PH
2972PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2973 hostname. This is wrong, because it relates to the incoming message (and
2974 probably the interface on which it is arriving) and not to the outgoing
2975 callout (which could be using a different interface). This has been
2976 changed to use the value of the helo_data option from the smtp transport
2977 instead - this is what is used when a message is actually being sent. If
2978 there is no remote transport (possible with a router that sets up host
2979 addresses), $smtp_active_hostname is used.
6ea85e9a 2980
14aa5a05 2981PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2982 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2983 (a) The code assumed that strncpy() returns a negative number on buffer
2984 overflow, which isn't the case. Replaced with Exim's string_format()
2985 function.
2986 (b) There were several signed/unsigned issues. I just did the minimum
2987 hacking in of casts. There is scope for a larger refactoring.
2988 (c) The code used strcasecmp() which is not a standard C function.
2989 Replaced with Exim's strcmpic() function.
2990 (d) The code set only $1; it now sets $auth1 as well.
2991 (e) A simple test gave the error "authentication client didn't specify
2992 service in request". It would seem that Dovecot has changed its
2993 interface. Fortunately there's a specification; I followed it and
2994 changed what the client sends and it appears to be working now.
2995
ff75a1f7
PH
2996PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2997 decoding.
2998
e6f6568e
PH
2999PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
3000 address A is aliased to B and C, where B exists and C does not. Without
3001 -v the output is "A verified" because verification stops after a
3002 successful redirection if more than one address is generated. However,
3003 with -v the child addresses are also verified. Exim was outputting "A
3004 failed to verify" and then showing the successful verification for C,
3005 with its parentage. It now outputs "B failed to verify", showing B's
3006 parentage before showing the successful verification of C.
3007
d6f6e0dc
PH
3008PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
3009 look up a TXT record in a specific list after matching in a combined
3010 list.
3011
322050c2
PH
3012PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
3013 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
3014 they consult the DNS. I had assumed they would set it the way they
3015 wanted; and indeed my experiments on Linux seem to show that in some
3016 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
3017 To be on the safe side, however, I have now made the interface to
3018 host_find_byname() similar to host_find_bydns(), with an argument
3019 containing the DNS resolver options. The host_find_byname() function now
3020 sets these options at its start, just as host_find_bydns() does. The smtp
3021 transport options dns_qualify_single and dns_search_parents are passed to
3022 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
3023 of host_find_byname() use the default settings of RES_DEFNAMES
3024 (qualify_single) but not RES_DNSRCH (search_parents).
3025
08955dd3
PH
3026PH/17 Applied (a modified version of) Nico Erfurth's patch to make
3027 spool_read_header() do less string testing, by means of a preliminary
3028 switch on the second character of optional "-foo" lines. (This is
3029 overdue, caused by the large number of possibilities that now exist.
3030 Originally there were few.) While I was there, I also converted the
3031 str(n)cmp tests so they don't re-test the leading "-" and the first
3032 character, in the hope this might squeeze out yet more improvement.
3033
1eccaa59
PH
3034PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3035 flag allowing group syntax was set by the header_syntax check but not
3036 turned off, possible causing trouble later; (2) The flag was not being
3037 set at all for the header_verify test, causing "group"-style headers to
3038 be rejected. I have now set it in this case, and also caused header_
3039 verify to ignore an empty address taken from a group. While doing this, I
3040 came across some other cases where the code for allowing group syntax
3041 while scanning a header line wasn't quite right (mostly, not resetting
3042 the flag correctly in the right place). These bugs could have caused
3043 trouble for malformed header lines. I hope it is now all correct.
3044
602e59e5
PH
3045PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3046 with the "reply" argument non-NULL. The code, however (which originally
3047 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3048 but it didn't always do it. This confused somebody who was copying the
3049 code for some other use. I have removed all the tests.
3050
411ef850
PH
3051PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3052 feature that was used to support insecure browsers during the U.S. crypto
3053 embargo. It requires special client support, and Exim is probably the
3054 only MTA that supported it -- and would never use it because real RSA is
3055 always available. This code has been removed, because it had the bad
3056 effect of slowing Exim down by computing (never used) parameters for the
3057 RSA_EXPORT functionality.
3058
7befa435
PH
3059PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3060 authenticator to fail if there's a tab character in the incoming data
3061 (there should never be unless someone is messing about, as it's supposed
3062 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3063 if the connection is using TLS or if the remote IP is the same as the
3064 local IP, and the "valid-client-cert option" if a client certificate has
3065 been verified.
3066
48da4259 3067PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3068 authenticators. This can be used for authorization after authentication
3069 succeeds. (In the case of plaintext, it servers for both authentication
3070 and authorization.)
3071
48da4259
PH
3072PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3073 if any retry times were supplied.
3074
d1d5595c
PH
3075PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3076 connection, where there is no client IP address to check. In this
3077 situation, the verify now always succeeds.
3078
0ef732d9
PH
3079PH/25 Applied John Jetmore's -Mset patch.
3080
328895cc
PH
3081PH/26 Added -bem to be like -Mset, but loading a message from a file.
3082
fd700877
PH
3083PH/27 In a string expansion for a processed (not raw) header when multiple
3084 headers of the same name were present, leading whitespace was being
3085 removed from all of them, but trailing whitespace was being removed only
3086 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3087 before concatenation. Completely empty headers in a concatenation (as
3088 before) are ignored.
fd700877 3089
8dce1a6f
PH
3090PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3091 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3092
17af4a17
PH
3093PH/29 [Removed. This was a change that I later backed out, and forgot to
3094 correct the ChangeLog entry (that I had efficiently created) before
3095 committing the later change.]
f6c332bd
PH
3096
3097PH/30 Exim was sometimes attempting to deliver messages that had suffered
3098 address errors (4xx response to RCPT) over the same connection as other
3099 messages routed to the same hosts. Such deliveries are always "forced",
3100 so retry times are not inspected. This resulted in far too many retries
3101 for the affected addresses. The effect occurred only when there were more
3102 hosts than the hosts_max_try setting in the smtp transport when it had
3103 the 4xx errors. Those hosts that it had tried were not added to the list
3104 of hosts for which the message was waiting, so if all were tried, there
3105 was no problem. Two fixes have been applied:
3106
3107 (i) If there are any address or message errors in an SMTP delivery, none
3108 of the hosts (tried or untried) are now added to the list of hosts
3109 for which the message is waiting, so the message should not be a
3110 candidate for sending over the same connection that was used for a
3111 successful delivery of some other message. This seems entirely
3112 reasonable: after all the message is NOT "waiting for some host".
3113 This is so "obvious" that I'm not sure why it wasn't done
3114 previously. Hope I haven't missed anything, but it can't do any
3115 harm, as the worst effect is to miss an optimization.
3116
3117 (ii) If, despite (i), such a delivery is accidentally attempted, the
3118 routing retry time is respected, so at least it doesn't keep
3119 hammering the server.
3120
c1114884
PH
3121PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3122 in ${readsocket because some servers need this prod.
3123
7a0743eb
PH
3124PH/32 Added some extra debug output when updating a wait-xxx database.
3125
0d85fa3f
PH
3126PH/33 The hint "could be header name not terminated by colon", which has been
3127 given for certain expansion errors for a long time, was not being given
3128 for the ${if def:h_colon_omitted{... case.
3129
1bf43b78
PH
3130PH/34 The spec says: "With one important exception, whenever a domain list is
3131 being scanned, $domain contains the subject domain." There was at least
3132 one case where this was not true.
3133
520de300
PH
3134PH/35 The error "getsockname() failed: connection reset by peer" was being
3135 written to the panic log as well as the main log, but it isn't really
3136 panic-worthy as it just means the connection died rather early on. I have
3137 removed the panic log writing for the ECONNRESET error when getsockname()
3138 fails.
3139
48c7f9e2
PH
3140PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3141 runs only) independently of the message's sender address. This meant
3142 that, if the 4xx error was in fact related to the sender, a different
3143 message to the same recipient with a different sender could confuse
4c04137d 3144 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3145 server, but other circumstances could also provoke similar problems.
3146 I have changed the default so that the retry time for these errors is now
3147 based a combination of the sender and recipient addresses. This change
3148 can be overridden by setting address_retry_include_sender=false in the
3149 smtp transport.
3150
99ea1c86
PH
3151PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3152 remote server are returned as part of bounce messages. This was not
3153 happening for LMTP over a pipe (the lmtp transport), but now it is the
3154 same for both kinds of LMTP.
3155
a2042e78
PH
3156PH/38 Despite being documented as not happening, Exim was rewriting addresses
3157 in header lines that were in fact CNAMEs. This is no longer the case.
3158
4fbcfc2e
PH
3159PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3160 and queue runs started by the daemon processed all messages. This has
3161 been fixed so that -R and -S can now usefully be given with -q<time>.
3162
aa41d2de
PH
3163PH/40 Import PCRE release 6.7 (fixes some bugs).
3164
af561417
PH
3165PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3166
3cc66b45
PH
3167PH/42 Give an error if -q is specified more than once.
3168
194cc0e4
PH
3169PH/43 Renamed the variables $interface_address and $interface_port as
3170 $received_ip_address and $received_port, to make it clear that these
3171 values apply to message reception, and not to the outgoing interface when
3172 a message is delivered. (The old names remain recognized, of course.)
3173
a401ddaa
PH
3174PH/44 There was no timeout on the connect() call when using a Unix domain
3175 socket in the ${readsocket expansion. There now is.
3176
4e88a19f
PH
3177PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3178 be meaningful with "accept".
3179
d7d7b289
SC
3180SC/01 Eximstats V1.43
3181 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3182
3183SC/02 Eximstats V1.44
3184 Use a glob alias rather than an array ref in the generated
3185 parser. This improves both readability and performance.
3186
3187SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3188 Collect SpamAssassin and rejection statistics.
3189 Don't display local sender or destination tables unless
3190 there is data to show.
3191 Added average volumes into the top table text output.
3192
3193SC/04 Eximstats V1.46
3194 Collect data on the number of addresses (recipients)
3195 as well as the number of messages.
3196
3197SC/05 Eximstats V1.47
3198 Added 'Message too big' to the list of mail rejection
3199 reasons (thanks to Marco Gaiarin).
3200
3201SC/06 Eximstats V1.48
3202 Mainlog lines which have GMT offsets and are too short to
3203 have a flag are now skipped.
3204
3205SC/07 Eximstats V1.49 (Alain Williams)
3206 Added the -emptyok flag.
3207
3208SC/08 Eximstats V1.50
3209 Fixes for obtaining the IP address from reject messages.
3210
0ea2a468
JJ
3211JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3212 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3213 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3214
3215JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3216 match 4.64-PH/13
3217
3218JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3219 are found, allow negative numbers in numeric criteria)
3220
3221JJ/06 exipick.20061117.2, added new $message_body_missing variable
3222
3223JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3224 to match changes made in 4.64-PH/43
3225
8a10f5a4
PH
3226PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3227
30e18802
PH
3228PH/47 Put in an explicit test for a DNS lookup of an address record where the
3229 "domain" is actually an IP address, and force a failure. This locks out
3230 those revolvers/nameservers that support "A-for-A" lookups, in
3231 contravention of the specifications.
3232
55728a4f
PH
3233PH/48 When a host name was looked up from an IP address, and the subsequent
3234 forward lookup of the name timed out, the host name was left in
3235 $sender_host_name, contrary to the specification.
d7d7b289 3236
d7837193
PH
3237PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3238 restricted to single-key lookups, Exim was not diagnosing an error if
3239 * or *@ was used with a query-style lookup.
3240
87054a31
PH
3241PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3242
ea2c01d2
MH
3243MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3244 long ago, but noone interested enough thought of it. Let's just say that
3245 the "1.1" means that there are some new functions that weren't there at
3246 some point in the past.
3247
e4fa6968
PH
3248PH/51 Error processing for expansion failure of helo_data from an smtp
3249 transport during callout processing was broken.
3250
56f5d9bd
PH
3251PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3252 tested/used via