UTF8/locale: document constraints on current expansions.
[exim.git] / doc / doc-txt / ChangeLog
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495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
d99f54e4
JH
8Exim version 4.92
9-----------------
10
9723f966
JH
11JH/01 Remove code calling the customisable local_scan function, unless a new
12 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
13
14JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
JH
15 non-signal-safe functions being used.
16
17JH/03 Bug 2269: When presented with a received message having a stupidly large
18 number of DKIM-Signature headers, disable DKIM verification to avoid
19 a resource-consumption attack. The limit is set at twenty.
9723f966 20
ea7b1f16
JH
21JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
22 report of oldest_pass in ${authres } in consequence, and separate out
23 some descriptions of reasons for verification fail.
24
cfbb0d24
JH
25JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
26 files in the spool were present and unlocked. A queue-runner could spot
27 them, resulting in a duplicate delivery. Fix that by doing the unlock
0488984d
JH
28 after the unlink. Investigation by Tim Stewart. Take the opportunity to
29 add more error-checking on spoolfile handling while that code is being
cfbb0d24
JH
30 messed with.
31
85defcf0
PP
32PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
33 No known attacks, no CVE, this is defensive hardening.
34
1bd642c2
JH
35JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
36 a queue-runner could start a delivery while other operations were ongoing.
37 Cutthrough delivery was a common victim, resulting in duplicate delivery.
38 Found and investigated by Tim Stewart. Fix by using the open message data
39 file handle rather than opening another, and not locally closing it (which
40 releases a lock) for that case, while creating the temporary .eml format
41 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
42
2ddb4094
JH
43JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
44 $sender_verify_failure/$recipient_verify_failure to "random".
45
1613fd68
JH
46JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
47 legitimate.
48
e6057245
JH
49JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
50 Previously this would segfault.
51
7b9822bf
JH
52JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
53 segfault.
54
d8d9f930
JH
55JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
56 like zero, since the resolver should be doing this for us, But we need one
57 as a CNAME but no MX presence gets the CNAME returned; we need to check
58 that doesn't point to an MX to declare it "no MX returned" rather than
59 "error, loop". A new main option is added so the older capability of
60 following some limited number of chain links is maintained.
61
61e3f250
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62JH/12 Add client-ip info to non-pass iprev ${authres } lines.
63
7a8b9519
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64JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
65 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
66 now-deprecated earlier definitions used only specified the range up to TLS
67 1.2 (in the older-version library docs).
68
49e56fb3
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69JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
70
74f1a423
JH
71JH/15 Rework TLS client-side context management. Stop using a global, and
72 explicitly pass a context around. This enables future use of TLS for
73 connections to service-daemons (eg. malware scanning) while a client smtp
74 connection is using TLS; with cutthrough connections this is quite likely.
75
5054c4fd 76JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
JH
77
78JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 79
946515bf
JH
80JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
81 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
82 Previously the "utf8" would be re-prepended for every additional message.
83
8c34c611
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84JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
85 Previously thery were accepted, resulting in issues when attempting to
86 forward messages to a non-supporting MTA.
87
1bca4f5f
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88PP/02 Let -n work with printing macros too, not just options.
89
8a6b4e02
JH
90JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
91 one parent address was copied, and bogus data was used at delivery-logging
92 time. Either a crash (after delivery) or bogus log data could result.
93 Discovery and analysis by Tim Stewart.
94
0a682b6c
PP
95PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
96 Previously if the string ended mid-character, we did not insert the
97 promised '?' replacement.
98
c2c451ac
PP
99PP/04 Documentation: current string operators work on bytes, not codepoints.
100
9723f966 101
bb264f6b
JH
102Exim version 4.91
103-----------------
459fca58 104
c39c8870 105GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
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106 When redis_servers is set to a list of > 1 element, and the Redis servers
107 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
108 case of MOVED into a DEFER case instead, thus moving the query onto the
109 next server in the list. For a cluster of N elements, all N servers must
110 be defined in redis_servers.
c39c8870 111
0800ef83
GF
112GF/02 Catch and remove uninitialized value warning in exiqsumm
113 Check for existence of @ARGV before looking at $ARGV[0]
114
459fca58
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115JH/01 Replace the store_release() internal interface with store_newblock(),
116 which internalises the check required to safely use the old one, plus
117 the allocate and data copy operations duplicated in both (!) of the
118 extant use locations.
119
944e8b37
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120JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
121 modifier. This matches the restriction on the commandline.
122
bbfb5dcd
JH
123JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
124 Previously only the last row was returned.
125
a05d3e34
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126JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
127 we assumed that tags in the header were well-formed, and parsed the
128 element content after inspecting only the first char of the tag.
129 Assumptions at that stage could crash the receive process on malformed
130 input.
131
ce93c6d8
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132JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
133 While running the DKIM ACL we operate on the Permanent memory pool so that
134 variables created with "set" persist to the DATA ACL. Also (at any time)
135 DNS lookups that fail create cache records using the Permanent pool. But
136 expansions release any allocations made on the current pool - so a dnsdb
137 lookup expansion done in the DKIM ACL releases the memory used for the
138 DNS negative-cache, and bad things result. Solution is to switch to the
139 Main pool for expansions.
140 While we're in that code, add checks on the DNS cache during store_reset,
141 active in the testsuite.
142 Problem spotted, and debugging aided, by Wolfgang Breyha.
143
2577f55f
JH
144JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
145 When none of the hosts presented to a transport match an already-open
146 connection, close it and proceed with the list. Previously we would
147 queue the message. Spotted by Lena with Yahoo, probably involving
148 round-robin DNS.
149
5b6f7658
JH
150JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
151 Previously a spurious "250 OK id=" response was appended to the proper
152 failure response.
153
c11d665d
JH
154JH/08 The "support for" informational output now, which built with Content
155 Scanning support, has a line for the malware scanner interfaces compiled
156 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
157
158JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
159 by the template makefile "src/EDITME". The "STREAM" support for an older
160 ClamAV interface method is removed.
c11d665d 161
ba0e37b1
JH
162JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
163 rows affected is given instead).
164
96508de1
JH
165JH/11 The runtime Berkeley DB library version is now additionally output by
166 "exim -d -bV". Previously only the compile-time version was shown.
167
06fdb9f7
JH
168JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
169 SMTP connection. Previously, when one had more receipients than the
170 first, an abortive onward connection was made. Move to full support for
171 multiple onward connections in sequence, handling cutthrough connection
172 for all multi-message initiating connections.
173
f83a760f
JH
174JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
175 routers. Previously, a multi-recipient message would fail to match the
176 onward-connection opened for the first recipient, and cause its closure.
177
f1fed05b
JH
178JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
179 a timeout on read on a GnuTLS initiating connection, resulting in the
180 initiating connection being dropped. This mattered most when the callout
181 was marked defer_ok. Fix to keep the two timeout-detection methods
182 separate.
183
051d5efa
JH
184JH/15 Relax results from ACL control request to enable cutthrough, in
185 unsupported situations, from error to silently (except under debug)
186 ignoring. This covers use with PRDR, frozen messages, queue-only and
187 fake-reject.
188
cf3cd306
HSHR
189HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
190
744976d4
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191JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
192 metadata, resulting in a crash in free().
193
aab9a843 194PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 195 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 196 Broken also in d185889f4, with init system revamp.
7be14582 197
83d2a861
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198JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
199 Previously we abruptly closed the connection after reading a malware-
200 found indication; now we go on to read the "scan ok" response line,
201 and send a quit.
202
6741531c
JH
203JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
204 ACL. Previously, a crash would result.
205
85e03244
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206JH/19 Speed up macro lookups during configuration file read, by skipping non-
207 macro text after a replacement (previously it was only once per line) and
208 by skipping builtin macros when searching for an uppercase lead character.
209
c0635b6d
JH
210JH/20 DANE support moved from Experimental to mainline. The Makefile control
211 for the build is renamed.
212
b808677c
JH
213JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
214 was allocated for every new TLS startup, meaning one per message. Fix
215 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
216
6678c382
JH
217JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
218 reported the original. Fix to report (as far as possible) the ACL
219 result replacing the original.
220
dec766a1
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221JH/23 Fix memory leak during multi-message connections using STARTTLS under
222 OpenSSL. Certificate information is loaded for every new TLS startup,
223 and the resources needed to be freed.
224
15ae19f9
JH
225JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
226
e6532c4a
JH
227JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
228 was not propagated.
229
2556b3c6
SA
230JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
231 DATA response info to the (existing) per-recipient response info for
232 the "C=" log element. It can have useful tracking info from the
233 destination system. Patch from Simon Arlott.
234
fc8cd529
JH
235JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
236 length value. Previously this would segfault.
237
71bb51e0
HSHR
238HS/02 Support Avast multiline protoocol, this allows passing flags to
239 newer versions of the scanner.
240
e04bfa34
JH
241JH/28 Ensure that variables possibly set during message acceptance are marked
242 dead before release of memory in the daemon loop. This stops complaints
243 about them when the debug_store option is enabled. Discovered specifically
244 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
245 Do the same for the queue-runner and queue-list loops, for variables set
246 from spool message files. Do the same for the SMTP per-message loop, for
247 certain variables indirectly set in ACL operations.
e04bfa34 248
ecce6d9a
JH
249JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
250 as a multi-recipient message from a mailinglist manager). The coding had
251 an arbitrary cutoff number of characters while checking for more input;
252 enforced by writing a NUL into the buffer. This corrupted long / fast
253 input. The problem was exposed more widely when more pipelineing of SMTP
254 responses was introduced, and one Exim system was feeding another.
255 The symptom is log complaints of SMTP syntax error (NUL chars) on the
256 receiving system, and refused recipients seen by the sending system
257 (propating to people being dropped from mailing lists).
258 Discovered and pinpointed by David Carter.
259
c9cf9ac4
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260JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
261 replaced by the ${authresults } expansion.
262
b3b37076
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263JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
264
830832c9
HSHR
265HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
266 allows proper process termination in container environments.
267
f64e8b5f
JH
268JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
269 Previously the "final dot" had a newline after it; ensure it is CR,LF.
270
8f0776b5
JH
271JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
272 and "err_perm", deprecated since 4.83 when the RFC-defined words
273 "temperror" and "permerror" were introduced.
274
857eaf37
JH
275JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
276 transport-filters or DKIM-signing. The restriction was lost in the
277 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 278 Extend the restriction to also cover ARC-signing.
857eaf37 279
c85476e9
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280JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
281 in defer=pass mode supply a 450 to the initiator. Previously the message
282 would be spooled.
283
405074ad
PP
284PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
285 tls_require_ciphers is used as before.
286
eb445b04
HSHR
287HS/03 Malware Avast: Better match the Avast multiline protocol. Add
288 "pass_unscanned". Only tmpfails from the scanner are written to
289 the paniclog, as they may require admin intervention (permission
290 denied, license issues). Other scanner errors (like decompression
291 bombs) do not cause a paniclog entry.
ad93c40f 292
d342446f
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293JH/36 Fix reinitialisation of DKIM logging variable between messages.
294 Previously it was possible to log spurious information in receive log
295 lines.
296
a28050f8
JH
297JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
298 triggered odd behaviour from Outlook Express clients.
299
ddd16464
PP
300PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
301 suffix list.
302
321ef002
JH
303JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
304 since the IETF WG has not yet settled on that versus the original
305 "bare" representation.
306
3203e7ba
JH
307JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
308 Previously the millisecond value corrupted the output.
309 Fix also for syslog_pid=no and log_selector +pid, for which the pid
310 corrupted the output.
311
bbfb5dcd 312
acfc18c3
PP
313Exim version 4.90
314-----------------
315
316JH/01 Rework error string handling in TLS interface so that the caller in
317 more cases is responsible for logging. This permits library-sourced
318 string to be attached to addresses during delivery, and collapses
319 pairs of long lines into single ones.
320
856d1e16
PP
321PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
322 during configuration. Wildcards are allowed and expanded.
323
b9df1829
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324JH/02 Rework error string handling in DKIM to pass more info back to callers.
325 This permits better logging.
326
875512a3
JH
327JH/03 Rework the transport continued-connection mechanism: when TLS is active,
328 do not close it down and have the child transport start it up again on
329 the passed-on TCP connection. Instead, proxy the child (and any
330 subsequent ones) for TLS via a unix-domain socket channel. Logging is
331 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 332 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 333
fc3f96af
JH
334JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
335 identical IP addresses on different listening ports. Will also affect
336 "exiwhat" output.
337
98913c8e
BK
338PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
339 add noisy ifdef guards to special-case this sillyness.
340 Patch from Bernd Kuhls.
341
8d909960
JH
342JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
343 than 255 are no longer allowed.
344
7006ee24
JH
345JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
346 Disable the session-cache too, which might reduce our load. Since we
347 currrectly use a new context for every connection, both as server and
348 client, there is no benefit for these.
349 GnuTLS appears to not support tickets server-side by default (we don't
350 call gnutls_session_ticket_enable_server()) but client side is enabled
351 by default on recent versions (3.1.3 +) unless the PFS priority string
352 is used (3.2.4 +).
353
6e411084
PP
354PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
355 <https://reproducible-builds.org/specs/source-date-epoch/>.
356
4c2471ca
JH
357JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
358 the check for any unsuccessful recipients did not notice the limit, and
359 erroneously found still-pending ones.
360
4e910c01
JH
361JH/08 Pipeline CHUNKING command and data together, on kernels that support
362 MSG_MORE. Only in-clear (not on TLS connections).
363
42055a33
JH
364JH/09 Avoid using a temporary file during transport using dkim. Unless a
365 transport-filter is involved we can buffer the headers in memory for
366 creating the signature, and read the spool data file once for the
367 signature and again for transmission.
368
eeb35890
JH
369JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
370 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 371 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 372
b7d3afcf
JH
373JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
374 case where the routing stage had gathered several addresses to send to
375 a host before calling the transport for the first, we previously failed
376 to close down TLS in the old transport process before passing the TCP
377 connection to the new process. The new one sent a STARTTLS command
378 which naturally failed, giving a failed delivery and bloating the retry
379 database. Investigation and fix prototype from Wolfgang Breyha.
380
40525d07
JH
381JH/12 Fix check on SMTP command input synchronisation. Previously there were
382 false-negatives in the check that the sender had not preempted a response
383 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 384 awareness of the SMTP input buffering.
40525d07 385
f33875c3
PP
386PP/04 Add commandline_checks_require_admin option.
387 Exim drops privileges sanely, various checks such as -be aren't a
388 security problem, as long as you trust local users with access to their
389 own account. When invoked by services which pass untrusted data to
390 Exim, this might be an issue. Set this option in main configuration
391 AND make fixes to the calling application, such as using `--` to stop
392 processing options.
393
a5ffa9b4
JH
394JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
395 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
396 responses to those, into a single TLS record each way (this usually means
397 a single packet). As a side issue, smtp_enforce_sync now works on TLS
398 connections.
925ac8e4 399
6600985a
PP
400PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
401 affects you only if you're dancing at the edge of the param size limits.
402 If you are, and this message makes sense to you, then: raise the
403 configured limit or use OpenSSL 1.1. Nothing we can do for older
404 versions.
405
ac4d558b
JH
406JH/14 For the "sock" variant of the malware scanner interface, accept an empty
407 cmdline element to get the documented default one. Previously it was
408 inaccessible.
409
e69636bc
JH
410JH/15 Fix a crash in the smtp transport caused when two hosts in succession
411 are unsuable for non-message-specific reasons - eg. connection timeout,
412 banner-time rejection.
413
a843a57e
JH
414JH/16 Fix logging of delivery remote port, when specified by router, under
415 callout/hold.
416
8e041ae0
PP
417PP/06 Repair manualroute's ability to take options in any order, even if one
418 is the name of a transport.
833c70bc
PP
419 Fixes bug 2140.
420
35a04365
HSHR
421HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
422
4226691b
JH
423JH/17 Change the list-building routines interface to use the expanding-string
424 triplet model, for better allocation and copying behaviour.
425
d185889f
JH
426JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
427 Previously it was constructed the first time a possibly-matching string
428 was met in the configuration file input during startup; now it is done
429 during compilation.
430
0a6c178c
JH
431JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
432 compatible one, to avoid the (poorly documented) possibility of a config
433 file in the working directory redirecting the DB files, possibly correpting
02745400 434 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 435
fae8970d
JH
436JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
437 cache-hot. Previously, although the result was properly cached, the
438 initial verify call returned a defer.
439
ad1a76fe 440JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
441 the main verify for receipient in uncached-mode.
442
ad1a76fe
JH
443JH/22 Retire historical build files to an "unsupported" subdir. These are
444 defined as "ones for which we have no current evidence of testing".
445
135e9496
JH
446JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
447 if present. Previously it was ignored.
448
f2ed27cf
JH
449JH/24 Start using specified-initialisers in C structure init coding. This is
450 a C99 feature (it's 2017, so now considered safe).
451
7eb0e5d2
JH
452JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
453 if was a fixed-sized field and bitmask ops via macros; it is now more
454 extensible.
455
4f9f4be4
456PP/07 GitHub PR 56: Apply MariaDB build fix.
457 Patch provided by Jaroslav Škarvada.
458
dc4de9cc
PP
459PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
460 during Coverity cleanups [4.87 JH/47]
461 Diagnosis and fix provided by Michael Fischer v. Mollard.
462
ea18931d
JH
463JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
464 the right size to place the terminating semicolon on its own folded
465 line, the header hash was calculated to an incorrect value thanks to
466 the (relaxed) space the fold became.
467
2cee425a
HSHR
468HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
469 and confused the parent.
470
848214f7
JH
471JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
472 which could crash as a result. This could lead to undeliverable messages.
473
9e0ed81f
JH
474JH/28 Logging: "next input sent too soon" now shows where input was truncated
475 for log purposes.
476
2540f2f8
JH
477JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
478 matters on fast-turnover and PID-randomising systems, which were getting
479 out-of-order delivery.
480
e5ab0ba9
JH
481JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
482 a possibly-overlapping copy. The symptom was that "Remote host closed
483 connection in response to HELO" was logged instead of the actual 4xx
484 error for the HELO.
485
e99a3a6c
JH
486JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
487 Previously only that bufferd was discarded, resulting in SYMTP command
488 desynchronisation.
489
18067c75
JH
490JH/32 DKIM: when a message has multiple signatures matching an identity given
491 in dkim_verify_signers, run the dkim acl once for each. Previously only
492 one run was done. Bug 2189.
493
72934ba7
JH
494JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
495 "panic the current process" to "deliberately defer". The panic log is
496 still written with the problem list name; the mail and reject logs now
497 get a temp-reject line for the message that was being handled, saying
498 something like "domains check lookup or other defer". The SMTP 451
499 message is still "Temporary local problem".
500
625667b6
JH
501JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
502 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
503 freed. CVE-2017-16943.
504
505HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
506 from SMTP input. Previously it was always done; now only done for DATA
507 and not BDAT commands. CVE-2017-16944.
625667b6 508
d21bf202
JH
509JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
510 to the message (such as an overlong header line). Previously this was
511 not done and we did not exit BDAT mode. Followon from the previous item
512 though a different problem.
513
acfc18c3 514
fd047340 515Exim version 4.89
acfc18c3 516-----------------
4c57a40e 517
9427e879 518JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 519 than -2003 did; needs libidn2 in addition to libidn.
fd047340 520
7b283890
JH
521JH/02 The path option on a pipe transport is now expanded before use.
522
4c57a40e
PP
523PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
524 Patch provided by "Björn", documentation fix added too.
525
5d036699
JH
526JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
527 missing a wire-to-host endian conversion.
528
f4630439
JH
529JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
530 close after a BDAT command line could be taken as a following command,
531 giving a synch failure. Fix by only checking for synch immediately
532 before acknowledging the chunk.
533
f988ce57
JS
534PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
535 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
536 macro. Patches provided by Josh Soref.
537
bd8fbe36
JH
538JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
539 Previously we did not; the RFC seems ambiguous and VRFY is not listed
540 by IANA as a service extension. However, John Klensin suggests that we
541 should.
542
543JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
544 the dkim code may be unix-mode line endings rather than smtp wire-format
545 CRLF, so prepend a CR to any bare LF.
fd047340 546
bd8fbe36 547JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
548 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
549
bd8fbe36
JH
550JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
551 the first were themselves being wrongly included in the feed into dkim
552 processing; with most chunk sizes in use this resulted in an incorrect
553 body hash calculated value.
554
eea19017
JH
555JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
556 DKIM signature block, for verification. Although advised against by
557 standards it is specifically not ruled illegal.
558
44e6651b
JH
559JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
560
561JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
562 missing a body hash (the bh= tag).
563
564JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
565 It seems that HAProxy sends the Proxy Protocol information in clear and
566 only then does a TLS startup, so do the same.
567
568JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
569 TCP connections (such as for Spamd) unless the daemon successfully set
570 Fast Open mode on its listening sockets. This fixes breakage seen on
571 too-old kernels or those not configured for Fast Open, at the cost of
572 requiring both directions being enabled for TFO, and TFO never being used
573 by non-daemon-related Exim processes.
574
575JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
576 endings, at least on the first header line. Try to canonify any that get
577 past that check, despite the cost.
578
b6040544
JH
579JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
580 now limited to an arbitrary five deep, while parsing addresses with the
581 strip_excess_angle_brackets option enabled.
582
f700ea4d
PP
583PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
584 instead leave the unprompted TLS handshake in socket buffer for the
585 TLS library to consume.
586
da88acae
PP
587PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
588
f6ef9370
PP
589PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
590
90341c71
JH
591JH/16 Drop variables when they go out of scope. Memory management drops a whole
592 region in one operation, for speed, and this leaves assigned pointers
593 dangling. Add checks run only under the testsuite which checks all
594 variables at a store-reset and panics on a dangling pointer; add code
595 explicitly nulling out all the variables discovered. Fixes one known
596 bug: a transport crash, where a dangling pointer for $sending_ip_address
597 originally assigned in a verify callout, is re-used.
598
1ec2ab36
PP
599PP/06 Drop '.' from @INC in various Perl scripts.
600
601PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
602
603PP/08 Reduce a number of compilation warnings under clang; building with
604 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
605 should be warning-free.
606
8b2b9480
PP
607JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
608
609HS/01 Fix portability problems introduced by PP/08 for platforms where
610 realloc(NULL) is not equivalent to malloc() [SunOS et al].
611
d953610f
HSHR
612HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
613 chunk. This allows us to accept broken chunked messages. We need a more
614 general solution here.
615
7dc5f827
PP
616PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
617 already-broken messages in the queue.
618
4bb432cb
PP
619JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
620
3b1a84c8
PP
621JH/19 Fix reference counting bug in routing-generated-address tracking.
622
902fbd69 623
8d042305
JH
624Exim version 4.88
625-----------------
4c57a40e 626
9094b84b
JH
627JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
628 supports it and a size is available (ie. the sending peer gave us one).
8d042305 629
03d5892b
JH
630JH/02 The obsolete acl condition "demime" is removed (finally, after ten
631 years of being deprecated). The replacements are the ACLs
632 acl_smtp_mime and acl_not_smtp_mime.
633
4b0fe319
JH
634JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
635 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
636 or even an in-clear connection were permitted. Now, if the host lookup
637 was dnssec and dane was requested then the host is only used if the
638 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
639 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
640 if one fails this test.
641 This means that a poorly-configured remote DNS will make it incommunicado;
642 but it protects against a DNS-interception attack on it.
643
789f8a4f
JH
644JH/04 Bug 1810: make continued-use of an open smtp transport connection
645 non-noisy when a race steals the message being considered.
646
23bb6982 647JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 648 self-signed certificate for inbound TLS connections.
23bb6982 649
0bd1b1ed 650JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 651 in rewrites and routers.
0bd1b1ed 652
20b9a2dc
JH
653JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
654 and logged a warning sing 4.83; now they are a configuration file error.
655
05392bbc
JH
656JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
657 (lacking @domain). Apply the same qualification processing as RCPT.
658
1a6230a3
JH
659JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
660
cfab9d68
JH
661JH/10 Support ${sha256:} applied to a string (as well as the previous
662 certificate).
663
98c82a3d
JH
664JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
665 a cutthrough deliver is pending, as we always want to make a connection.
666 This also avoids re-routing the message when later placing the cutthrough
667 connection after a verify cache hit.
668 Do not update it with the verify result either.
669
670JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
671 when routing results in more than one destination address.
672
ae8386f0
JH
673JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
674 signing (which inhibits the cutthrough capability). Previously only
675 the presence of an option was tested; now an expansion evaluating as
676 empty is permissible (obviously it should depend only on data available
677 when the cutthrough connection is made).
678
0d9fa8c0
JH
679JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
680 the relevant preceding SMTP command did not note the pipelining mode.
681
3581f321
JH
682JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
683 Previously they were not counted.
684
ef3a1a30
JH
685JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
686 as one having no matching records. Previously we deferred the message
687 that needed the lookup.
688
4c04137d 689JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
690 distinguished as "(=".
691
1435d4b2
JH
692JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
693 for missing MX records. Previously it only worked for missing A records.
694
eea0defe
JB
695JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
696
697JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
698 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 699
4c04137d 700JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
701 even for a "none" policy. Patch from Tony Meyer.
702
1c788856
JH
703JH/22 Fix continued use of a connection for further deliveries. If a port was
704 specified by a router, it must also match for the delivery to be
705 compatible.
706
e3b1f624
JH
707JH/23 Bug 1874: fix continued use of a connection for further deliveries.
708 When one of the recipients of a message was unsuitable for the connection
709 (has no matching addresses), we lost track of needing to mark it
710 deferred. As a result mail would be lost.
711
a57ce043
JH
712JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
713
f59aaaaa 714JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
715 takes up less space and should be simpler to maintain. Merge the ACL
716 condition decode tables also, with similar effect.
d7bed771 717
d1f9fb42
JH
718JH/26 Fix problem with one_time used on a redirect router which returned the
719 parent address unchanged. A retry would see the parent address marked as
720 delivered, so not attempt the (identical) child. As a result mail would
721 be lost.
722
92b0827a
JH
723JH/27 Fix a possible security hole, wherein a process operating with the Exim
724 UID can gain a root shell. Credit to http://www.halfdog.net/ for
725 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
726 itself :(
727
ddf1b11a
JH
728JH/28 Enable {spool,log} filesystem space and inode checks as default.
729 Main config options check_{log,spool}_{inodes,space} are now
730 100 inodes, 10MB unless set otherwise in the configuration.
731
3cc3f762
JH
732JH/29 Fix the connection_reject log selector to apply to the connect ACL.
733 Previously it only applied to the main-section connection policy
734 options.
735
ae5afa61
JH
736JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
737
317e40ac
PP
738PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
739 by me. Added RFC7919 DH primes as an alternative.
740
8b0fb68e
PP
741PP/02 Unbreak build via pkg-config with new hash support when crypto headers
742 are not in the system include path.
743
ad7fc6eb 744JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 745 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
746 Exim did stdio operations after fclose. This was exposed by a recent
747 change which nulled out the file handle after the fclose.
ad7fc6eb 748
ee5b1e28
JH
749JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
750 signed directly by the cert-signing cert, rather than an intermediate
751 OCSP-signing cert. This is the model used by LetsEncrypt.
752
5ddc9771
JH
753JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
754
8d73599f
JH
755HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
756 an incoming connection.
757
446415f5
HSHR
758HS/02 Bug 1802: Do not half-close the connection after sending a request
759 to rspamd.
760
8e53a4fc
HSHR
761HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
762 fallback to "prime256v1".
8d042305 763
87cb4a16 764JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 765 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
766
767
0d9b78be
JH
768Exim version 4.87
769-----------------
4c57a40e 770
82d14d6a
JH
771JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
772 and 3.4.4 - once the server is enabled to respond to an OCSP request
773 it does even when not requested, resulting in a stapling non-aware
774 client dropping the TLS connection.
0d9b78be 775
6c6d6e48
TF
776TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
777 support variable-length bit vectors. No functional change.
778
ac881e27
TF
779TF/02 Improve the consistency of logging incoming and outgoing interfaces.
780 The I= interface field on outgoing lines is now after the H= remote
781 host field, same as incoming lines. There is a separate
782 outgoing_interface log selector which allows you to disable the
783 outgoing I= field.
784
c8899c20
JH
785JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
786 If not running log_selector +smtp_connection the mainlog would be held
787 open indefinitely after a "too many connections" event, including to a
788 deleted file after a log rotate. Leave the per net connection logging
789 leaving it open for efficiency as that will be quickly detected by the
790 check on the next write.
791
f1b81d81
HSHR
792HS/01 Bug 1671: Fix post transport crash.
793 Processing the wait-<transport> messages could crash the delivery
794 process if the message IDs didn't exist for some reason. When
795 using 'split_spool_directory=yes' the construction of the spool
796 file name failed already, exposing the same netto behaviour.
797
f38917cc
JH
798JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
799 mime_regex ACL conditions.
800
895fbaf2
JH
801JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
802 to DSN fail messages (bounces): remote IP, remote greeting, remote response
803 to HELO, local diagnostic string.
804
805bb5c3
JH
805JH/05 Downgrade message for a TLS-certificate-based authentication fail from
806 log line to debug. Even when configured with a tls authenticator many
807 client connections are expected to not authenticate in this way, so
808 an authenticate fail is not an error.
809
56c2a7be
HSHR
810HS/02 Add the Exim version string to the process info. This way exiwhat
811 gives some more detail about the running daemon.
812
4c04137d 813JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
814 matter for fast-change records such as DNSBLs.
815
6f6dedcc
JH
816JH/07 Bug 1678: Always record an interface option value, if set, as part of a
817 retry record, even if constant. There may be multiple transports with
818 different interface settings and the retry behaviour needs to be kept
819 distinct.
820
0f557e90
JH
821JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
822
823JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
824
ec0eb1a3
JH
825JH/10 Bug 840: fix log_defer_output option of pipe transport
826
41e93589
JH
827JH/11 Bug 830: use same host for all RCPTS of a message, even under
828 hosts_randomize. This matters a lot when combined with mua_wrapper.
829
98b98887 830JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
831 ${quote_pgsql:<string>} operator.
832
98b98887
JH
833JH/13 Bug 1708: avoid misaligned access in cached lookup.
834
858e91c2
JH
835JH/14 Change header file name for freeradius-client. Relevant if compiling
836 with Radius support; from the Gentoo tree and checked under Fedora.
837
838JH/15 Bug 1712: Introduce $prdr_requested flag variable
839
6ff55e50
JH
840JH/16 Bug 1714: Permit an empty string as expansion result for transport
841 option transport_filter, meaning no filtering.
842
3b957582
JB
843JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
844
23f3dc67
JH
845JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
846 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 847 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
848 If a server certificate is not supplied (via tls_certificate) an error is
849 logged, and clients will find TLS connections fail on startup. Presumably
850 they will retry in-clear.
851 Packagers of Exim are strongly encouraged to create a server certificate
852 at installation time.
853
240c288f
JH
854HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
855 with the $config_file variable.
856
5ef5dd52
JB
857JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
858 in transport context, after the attempt, and per-recipient. The latter type
859 is per host attempted. The event data is the error message, and the errno
860 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 861 and the trailing two digits of the smtp 4xx response.
5ef5dd52 862
e161710d
GF
863GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
864 to write to mainlog (or rejectlog, paniclog) in the window between file
865 creation and permissions/ownership being changed. Particularly affects
866 installations where exicyclog is run as root, rather than exim user;
867 result is that the running daemon panics and dies.
868
a159f203
JH
869JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
870
7f06582c
JH
871JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
872 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
873 "pri" and "weight". Note that the previous implicit priority given by the
874 list order is no longer honoured.
875
4c04137d 876JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
877 for DKIM processing.
878
f0989ec0
JH
879JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
880 by defining SUPPORT_SOCKS.
74f150bf 881
cee5f132
JH
882JH/26 Move PROXY support from Experimental to mainline, enabled for a build
883 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
884 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
885 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 886
8c5d388a
JH
887JH/27 Move Internationalisation support from Experimental to mainline, enabled
888 for a build by defining SUPPORT_I18N
889
2d8d625b
JH
890JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
891 of the query string, and make ${quote_redis:} do that quoting.
892
0cbf2b82
JH
893JH/29 Move Events support from Experimental to mainline, enabled by default
894 and removable for a build by defining DISABLE_EVENT.
895
f2f2c91b
JH
896JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
897
ce325893
JH
898JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
899 cached by the daemon.
900
de78e2d5
JH
901JH/32 Move Redis support from Experimental to mainline, enabled for a build
902 by defining LOOKUP_REDIS. The libhiredis library is required.
903
379ba7d0
JH
904JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
905 keys are given for lookup.
906
f444c2c7
JH
907JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
908 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
909 only supported when built with TLS support. The PolarSSL SHA routines
910 are still used when the TLS library is too old for convenient support.
f444c2c7 911
a57b6200
JH
912JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
913 openssl_options), for security. OpenSSL forces this from version 1.1.0
914 server-side so match that on older versions.
915
07c73177 916JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 917 allocation for $value could be released as the expansion processing
07c73177 918 concluded, but leaving the global pointer active for it.
fa01e4f8 919
4f6ae5c3
JH
920JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
921 and to use the domains and local_parts ACL conditions.
922
1bc460a6
JH
923JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
924 incorrectly not doubled on cutthrough transmission, hence seen as a
925 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 926 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
927 via the normal store-and-forward channel. This could result in duplicates
928 received - but deduplicating mailstores were liable to retain only the
929 initial truncated version.
930
ab9152ff 931JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 932
67e87fcf
JH
933JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
934
ab9152ff
JH
935JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
936 we're in there, support oversigning also; bug 1309.
937
af483912
JH
938JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
939
bc3c7bb7 940HS/04 Add support for keep_environment and add_environment options.
df3def24 941
13559da6
JH
942JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
943 either intentional arithmetic overflow during PRNG, or testing config-
944 induced overflows.
945
59eaad2b
JH
946JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
947 delivery resulted in actual delivery. Cancel cutthrough before DATA
948 stage.
949
f9334a28
JH
950JH/45 Fix cutthrough, when connection not opened by verify and target hard-
951 rejects a recipient: pass the reject to the originator.
952
dc8091e7
JH
953JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
954 Many were false-positives and ignorable, but it's worth fixing the
955 former class.
956
dfe7d917
JH
957JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
958 for the new environment-manipulation done at startup. Move the routines
959 from being local to tls.c to being global via the os.c file.
960
93cc2d6e
JH
961JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
962 an extract embedded as result-arg for a map, the first arg for extract
963 is unavailable so we cannot tell if this is a numbered or keyed
964 extraction. Accept either.
965
13559da6 966
9c695f6d
JH
967Exim version 4.86
968-----------------
4c57a40e 969
9c695f6d
JH
970JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
971 expanded.
972
506900af
JH
973JH/02 The smtp transport option "multi_domain" is now expanded.
974
ad07e9ad
JH
975JH/03 The smtp transport now requests PRDR by default, if the server offers
976 it.
977
01a4a5c5 978JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 979 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
980 can be used to disable this per-host. The build option
981 EXPERIMENTAL_CERTNAMES is withdrawn.
982
cb1d7830 983JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 984 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
985 For GnuTLS, only version 3.0.20 or later.
986
610ff438 987JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
988 (but not required) by default. The verification status is now logged by
989 default, for both outbound TLS and client-certificate supplying inbound
990 TLS connections
610ff438 991
f926e272
JH
992JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
993 sites use this now.
994
50dc7409
JH
995JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
996 Status Notification (bounce) messages are now MIME format per RFC 3464.
997 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
998 under the control of the dsn_advertise_hosts option, and routers may
999 have a dsn_lasthop option.
1000
0f0c8159
JH
1001JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1002 default, modifiable by a malware= option. The list separator for
23763898 1003 the options can now be changed in the usual way. Bug 68.
4e71661f 1004
1ad6489e
JH
1005JH/10 The smtp_receive_timeout main option is now expanded before use.
1006
aeaf5db3
JH
1007JH/11 The incoming_interface log option now also enables logging of the
1008 local interface on delivery outgoing connections.
1009
5032d1cf
JH
1010JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1011 if the interface and destination host and port all match.
1012
7e8360e6
JH
1013JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1014 /defer_ok option.
1015
c5f280e2
AL
1016JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1017 Patch from Andrew Lewis.
1018
fd4d8871 1019JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1020 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1021 modifiers per server. Patch originally by <rommer@active.by>.
1022
1023JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1024 and remote servers. Remote servers can be IPv6 addresses, and
1025 specify a port-range.
fd4d8871 1026
23763898
JH
1027JH/17 Bug 68: The spamd_address main option now supports an optional
1028 timeout value per server.
1029
2ad78978
JH
1030JH/18 Bug 1581: Router and transport options headers_add/remove can
1031 now have the list separator specified.
1032
8a512ed5 1033JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1034 option values.
8a512ed5 1035
82c0c8ea 1036JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1037 under OpenSSL.
1038
cc00f4af
JH
1039JH/21 Support for the A6 type of dns record is withdrawn.
1040
82c0c8ea
JH
1041JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1042 rather than the verbs used.
1043
b980ed83
JH
1044JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1045 from 255 to 1024 chars.
1046
6c9ed72e
JH
1047JH/24 Verification callouts now attempt to use TLS by default.
1048
cfab9d68 1049HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1050 are generic router options now. The defaults didn't change.
50dc7409 1051
f846c8f5
JH
1052JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1053 Original patch from Alexander Shikoff, worked over by JH.
1054
fd4c285c
HSHR
1055HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1056 files if ZCAT_COMMAND is not executable.
1057
4c04137d 1058JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1059
d2a2c69b
JH
1060JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1061
8241d8dd
JH
1062JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1063 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1064 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1065 (and we were inconsistent anyway for A-only vs AAAA+A).
1066
1f12df4d
JH
1067JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1068
1f155f8e
JH
1069JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1070 when evaluating $sender_host_dnssec.
1071
1705dd20
JH
1072JH/31 Check the HELO verification lookup for DNSSEC, adding new
1073 $sender_helo_dnssec variable.
1074
038597d2
PP
1075JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1076
474f71bf
JH
1077JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1078
7137ca4b
JH
1079JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1080
dcb1095c
JH
1081JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1082 documented as working, but never had. Support all but $spam_report.
1083
2f460950
JH
1084JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1085 added for tls authenticator.
1086
2f680c0c
HSHR
1087HS/03 Add perl_taintmode main config option
1088
9c695f6d 1089
e449c3b0
TL
1090Exim version 4.85
1091-----------------
4c57a40e 1092
e449c3b0
TL
1093TL/01 When running the test suite, the README says that variables such as
1094 no_msglog_check are global and can be placed anywhere in a specific
1095 test's script, however it was observed that placement needed to be near
1096 the beginning for it to behave that way. Changed the runtest perl
1097 script to read through the entire script once to detect and set these
1098 variables, reset to the beginning of the script, and then run through
1099 the script parsing/test process like normal.
1100
ac20058f
TL
1101TL/02 The BSD's have an arc4random API. One of the functions to induce
1102 adding randomness was arc4random_stir(), but it has been removed in
1103 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1104 function when detected.
1105
a9b8ec8b
JH
1106JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1107 cause callback expansion.
1108
6286d7c4
TL
1109TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1110 syntax errors in an expansion can be treated as a string instead of
1111 logging or causing an error, due to the internal use of bool_lax
1112 instead of bool when processing it.
1113
0f06b4f2 1114JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1115 server certificates when making smtp deliveries.
1116
be36e572
JH
1117JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1118
ac4ef9bd
JH
1119JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1120
0eb51736
TL
1121TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1122
c713ca4b
TL
1123TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1124 Merged patch from Sebastian Wiedenroth.
e449c3b0 1125
bd21a787
WB
1126JH/05 Fix results-pipe from transport process. Several recipients, combined
1127 with certificate use, exposed issues where response data items split
1128 over buffer boundaries were not parsed properly. This eventually
1129 resulted in duplicates being sent. This issue only became common enough
4c04137d 1130 to notice due to the introduction of connection certificate information,
bd21a787
WB
1131 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1132
8bc732e8
JH
1133JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1134 size buffer was used, resulting in syntax errors when an expansion
1135 exceeded it.
1136
a7fec7a7
JH
1137JH/07 Add support for directories of certificates when compiled with a GnuTLS
1138 version 3.3.6 or later.
1139
4c04137d 1140JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1141 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1142 both become "event_action", the variables become $event_name, $event_data
aec45841 1143 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1144 routers, transports and related events. The tls:cert event is now also
1145 raised for inbound connections, if the main configuration event_action
1146 option is defined.
774ef2d7 1147
eca4debb
TL
1148TL/06 In test suite, disable OCSP for old versions of openssl which contained
1149 early OCSP support, but no stapling (appears to be less than 1.0.0).
1150
8d692470
JH
1151JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1152 server certificate names available under the smtp transport option
1153 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1154 matches.
1155
e9477a08
JH
1156JH/10 Time-related extraction expansions from certificates now use the main
1157 option "timezone" setting for output formatting, and are consistent
1158 between OpenSSL and GnuTLS compilations. Bug 1541.
1159
ad4c5ff9
JH
1160JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1161 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1162
1163JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1164 include certificate info, eximon was claiming there were spoolfile
1165 syntax errors.
1166
3394b36a 1167JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1168
1169JH/14 Log delivery-related information more consistently, using the sequence
1170 "H=<name> [<ip>]" wherever possible.
1171
3394b36a
TL
1172TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1173 are problematic for Debian distribution, omit them from the release
1174 tarball.
1175
ad4c5ff9
JH
1176JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1177
4c04137d 1178JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1179 Bug 1561.
1180
1181JH/17 Fix a null-indirection in certextract expansions when a nondefault
1182 output list separator was used.
1183
8bc732e8 1184
1f0ebb98
TL
1185Exim version 4.84
1186-----------------
09728d20
TL
1187TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1188 checkers that were complaining about end of non-void function with no
1189 return.
1f0ebb98 1190
a612424f 1191JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1192 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1193
1194JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1195
1196TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1197 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1198
1f0ebb98 1199
c0e56233
TF
1200Exim version 4.83
1201-----------------
1202
1203TF/01 Correctly close the server side of TLS when forking for delivery.
1204
1205 When a message was received over SMTP with TLS, Exim failed to clear up
1206 the incoming connection properly after forking off the child process to
1207 deliver the message. In some situations the subsequent outgoing
1208 delivery connection happened to have the same fd number as the incoming
1209 connection previously had. Exim would try to use TLS and fail, logging
1210 a "Bad file descriptor" error.
1211
7245734e
TF
1212TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1213 utilities have not been installed.
1214
fd5dad68
JH
1215JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1216 temporary space as the ACL may create new global variables.
1217
5428a946
TL
1218TL/01 LDAP support uses per connection or global context settings, depending
1219 upon the detected version of the libraries at build time.
1220
a3c86431
TL
1221TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1222 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1223 were a direct connection from the outside internet. PPv2 support was
1224 updated based on HAProxy spec change in May 2014.
a3c86431 1225
aa26e137
JH
1226JH/02 Add ${listextract {number}{list}{success}{fail}}.
1227
5a1b8443
WB
1228TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1229 Properly escape header and check for NULL return.
1230
72c9e342
PP
1231PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1232 not dns_use_dnssec.
1233
76f44207
WB
1234JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1235
770747fd
MFM
1236TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1237 characters in header names, implemented as a verify condition.
1238 Contributed by Michael Fischer v. Mollard.
1239
8ddef691 1240TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1241 results permerror and temperror. Previous values are deprecated but
1242 still accepted. In a future release, err_perm and err_temp will be
1243 completely removed, which will be a backward incompatibility if the
1244 ACL tests for either of these two old results. Patch contributed by
8ddef691 1245 user bes-internal on the mailing list.
c0e56233 1246
b9c2e32f
AR
1247JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1248
e45a1c37
JH
1249JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1250 selectors, in both main and reject logs.
1251
67d81c10
JH
1252JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1253 failed delivery.
1254
b1f8e4f8
JH
1255JH/07 Add malware type "sock" for talking to simple daemon.
1256
511a6c14 1257JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1258
1259JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1260 routers/transports under cutthrough routing.
214042d2 1261
51c7471d
JH
1262JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1263 numbers. Touch up "bool" conditional to keep the same definition.
1264
3695be34
TL
1265TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1266
1e06383a
TL
1267JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1268
76146973
JH
1269JH/12 Expand items in router/transport headers_add or headers_remove lists
1270 individually rather than the list as a whole. Bug 1452.
1271
1272 Required for reasonable handling of multiple headers_ options when
1273 they may be empty; requires that headers_remove items with embedded
1274 colons must have them doubled (or the list-separator changed).
1275
8c8b8274
TL
1276TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1277 view the policy declared in the DMARC record. Currently, $dmarc_status
1278 is a combined value of both the record presence and the result of the
1279 analysis.
b1f8e4f8 1280
35aba663
JH
1281JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1282
8c51eead 1283JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1284 dnslookup router and the smtp transport (applying to the forward
1285 lookup).
8c51eead 1286
deae092e
HS
1287TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1288 of ldap servers used for a specific lookup. Patch provided by Heiko
1289 Schlichting.
35aba663 1290
fd3b6a4a 1291JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1292 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1293
8d91c6dc
LT
1294TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1295 Patch submitted by Lars Timman.
1296
2b4a568d
JH
1297JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1298
d2af03f4
HS
1299TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1300 Requires trusted mode and valid format message id, aborts otherwise.
1301 Patch contributed by Heiko Schlichting.
1302
9d1c15ef
JH
1303JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1304 certextract with support for various fields. Bug 1358.
1305
44662487
JH
1306JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1307 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1308 hosts_request_ocsp.
1309
ed3bba5f 1310JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1311 operate on certificate variables to give certificate fingerprints
9ef9101c 1312 Also new ${sha256:cert_variable}.
44662487 1313
8ccd00b1
JH
1314JH/23 The PRDR feature is moved from being Experimental into the mainline.
1315
8ded8589
TL
1316TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1317 Christian Aistleitner.
1318
f2de3a33
JH
1319JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1320
6eb02f88
TL
1321TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1322 file. Patch from Wolfgang Breyha.
1323
00bff6f6
JH
1324JH/25 Expand the coverage of the delivery $host and $host_address to
1325 client authenticators run in verify callout. Bug 1476.
1326
071c51f7
JH
1327JH/26 Port service names are now accepted for tls_on_connect_ports, to
1328 align with daemon_smtp_ports. Bug 72.
1329
a6d4c44e
TF
1330TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1331 support and error reporting did not work properly.
1332
3ae173e7
ACK
1333TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1334 and is readable. Patch from Andrew Colin Kissa.
1335
c13d09b8
TL
1336TL/14 Enhance documentation of ${run expansion and how it parses the
1337 commandline after expansion, particularly in the case when an
1338 unquoted variable expansion results in an empty value.
1339
0df4ab80
JH
1340JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1341
66be95e0
PP
1342PP/02 Fix internal collision of T_APL on systems which support RFC3123
1343 by renaming away from it. Addresses GH issue 15, reported by
1344 Jasper Wallace.
1345
1bd0d12b
JH
1346JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1347
0de7239e
TL
1348TL/15 SECURITY: prevent double expansion in math comparison functions
1349 (can expand unsanitized data). Not remotely exploitable.
1350 CVE-2014-2972
1351
fd3b6a4a 1352
2c422e6f 1353Exim version 4.82
98a90c36
PP
1354-----------------
1355
1356PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1357
12f69989
PP
1358PP/02 Make -n do something, by making it not do something.
1359 When combined with -bP, the name of an option is not output.
1360
54c90be1
PP
1361PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1362 by GnuTLS.
1363
1f4a55da
PP
1364PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1365 $sender_host_name and config options to manage this, and basic check
1366 routines.
1367
13363eba 1368PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1369
66645890 1370PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1371 (Only plugin which currently uses this is kerberos4, which nobody should
1372 be using, but we should make it available and other future plugins might
1373 conceivably use it, even though it would break NAT; stuff *should* be
1374 using channel bindings instead).
66645890 1375
a3fb9793 1376PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1377 name; added for Sendmail compatibility; requires admin caller.
1378 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1379 just ignore it); requires trusted caller.
a3fb9793 1380 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1381 Bugzilla 1117.
a3fb9793 1382
d27f98fe 1383TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1384
6822b909
TL
1385TL/02 Add +smtp_confirmation as a default logging option.
1386
e7568d51
TL
1387TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1388 Patch by Magnus Holmgren from 2007-02-20.
1389
ae0e32ee 1390TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1391 Bugzilla 1283 - Spec typo.
97f42f10 1392 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1393
1394TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1395
e2658fff
TL
1396TL/06 Add Experimental DMARC support using libopendmarc libraries.
1397
83712b39
TL
1398TL/07 Fix an out of order global option causing a segfault. Reported to dev
1399 mailing list by by Dmitry Isaikin.
1400
976b7e9f
JH
1401JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1402
be4a1376
JH
1403JH/02 Support "G" suffix to numbers in ${if comparisons.
1404
ec4b68e5
PP
1405PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1406
d7148a07
NM
1407NM/01 Bugzilla 1197 - Spec typo
1408 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1409
585121e2 1410JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1411
2519e60d
TL
1412PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1413 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1414 function.
a5f239e4 1415
13d08c90
PP
1416PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1417 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1418
bef3ea7f
JH
1419JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1420 "acl {{name}{arg}...}", and optional args on acl condition
1421 "acl = name arg..."
a5f239e4 1422
846726c5
JH
1423JH/05 Permit multiple router/transport headers_add/remove lines.
1424
3a796370
JH
1425JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1426
ea722490 1427JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1428 Performance patch from Paul Fisher. Bugzilla 1262.
1429
b1b05573
JH
1430JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1431 Bugzilla 884.
1432
362145b5
JH
1433JH/09 Add $headers_added variable, with content from use of ACL modifier
1434 add_header (but not yet added to the message). Bugzilla 199.
1435
3c0a92dc
JH
1436JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1437 Pulled from Bugzilla 817 by Wolfgang Breyha.
1438
6d7c6175
PP
1439PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1440 CVE-2012-5671
e78e6ecf 1441 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1442
6f123593
JH
1443JH/11 Add A= logging on delivery lines, and a client_set_id option on
1444 authenticators.
1445
c8e2fc1e
JH
1446JH/12 Add optional authenticated_sender logging to A= and a log_selector
1447 for control.
1448
005ac57f
PP
1449PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1450
3f1df0e3
PP
1451PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1452 advertise SMTP AUTH mechanism to us, instead of a generic
1453 protocol violation error. Also, make Exim more robust to bad
1454 data from the Dovecot auth socket.
1455
67bd1ab3
TF
1456TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1457
1458 When a queue runner is handling a message, Exim first routes the
1459 recipient addresses, during which it prunes them based on the retry
1460 hints database. After that it attempts to deliver the message to
1461 any remaining recipients. It then updates the hints database using
1462 the retry rules.
1463
1464 So if a recipient address works intermittently, it can get repeatedly
1465 deferred at routing time. The retry hints record remains fresh so the
1466 address never reaches the final cutoff time.
1467
1468 This is a fairly common occurrence when a user is bumping up against
1469 their storage quota. Exim had some logic in its local delivery code
1470 to deal with this. However it did not apply to per-recipient defers
1471 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1472
1ddeb334
TF
1473 This change adds a proper retry rule check during routing so that the
1474 final cutoff time is checked against the message's age. We only do
1475 this check if there is an address retry record and there is not a
1476 domain retry record; this implies that previous attempts to handle
1477 the address had the retry_use_local_parts option turned on. We use
1478 this as an approximation for the destination being like a local
1479 delivery, as in LMTP.
67bd1ab3
TF
1480
1481 I suspect this new check makes the old local delivery cutoff check
1482 redundant, but I have not verified this so I left the code in place.
1483
326cdc37
TF
1484TF/02 Correct gecos expansion when From: is a prefix of the username.
1485
1486 Test 0254 submits a message to Exim with the header
1487
1488 Resent-From: f
1489
1490 When I ran the test suite under the user fanf2, Exim expanded
1491 the header to contain my full name, whereas it should have added
1492 a Resent-Sender: header. It erroneously treats any prefix of the
1493 username as equal to the username.
1494
1495 This change corrects that bug.
1496
f62514b3
GF
1497GF/01 DCC debug and logging tidyup
1498 Error conditions log to paniclog rather than rejectlog.
1499 Debug lines prefixed by "DCC: " to remove any ambiguity.
1500
eb505532
TF
1501TF/03 Avoid unnecessary rebuilds of lookup-related code.
1502
14c7b357
PP
1503PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1504 Bug spotted by Jeremy Harris; was flawed since initial commit.
1505 Would have resulted in OCSP responses post-SNI triggering an Exim
1506 NULL dereference and crash.
1507
94eaf700
PP
1508JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1509
6f5a440a
PP
1510PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1511 Bug detection, analysis and fix by Samuel Thibault.
1512 Bugzilla 1331, Debian bug #698092.
1513
514ee161
SC
1514SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1515
fd98a5c6
JH
1516JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1517 Server implementation by Todd Lyons, client by JH.
1518 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1519 config variable "prdr_enable" controls whether the server
1520 advertises the facility. If the client requests PRDR a new
1521 acl_data_smtp_prdr ACL is called once for each recipient, after
1522 the body content is received and before the acl_smtp_data ACL.
4c04137d 1523 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1524 on the smtp transport, and the server advertisement.
1525 Default client logging of deliveries and rejections involving
1526 PRDR are flagged with the string "PRDR".
1527
035c7f1e
PP
1528PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1529 fclose(). Diagnosis by Todd Lyons.
1530
ff284120
PP
1531PP/17 Update configure.default to handle IPv6 localhost better.
1532 Patch by Alain Williams (plus minor tweaks).
1533 Bugzilla 880.
1534
26e72755
PP
1535PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1536 This is now consistent with GnuTLS, and is now documented: the
1537 previous undocumented portable approach to treating the option as
1538 unset was to force an expansion failure. That still works, and
1539 an empty string is now equivalent.
1540
0fbd9bff
PP
1541PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1542 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1543 not performing validation itself.
1544
700d22f3
PP
1545PP/20 Added force_command boolean option to pipe transport.
1546 Patch from Nick Koston, of cPanel Inc.
1547
fcc8e047
JH
1548JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1549 Bugzilla 321, 823.
1550
4c04137d 1551TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1552
8c020188
PP
1553PP/21 Fix eximon continuous updating with timestamped log-files.
1554 Broken in a format-string cleanup in 4.80, missed when I repaired the
1555 other false fix of the same issue.
1556 Report and fix from Heiko Schlichting.
1557 Bugzilla 1363.
1558
d13cdd30
PP
1559PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1560 Report from Prashanth Katuri.
1561
e2fbf4a2
PP
1562PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1563 It's SecureTransport, so affects any MacOS clients which use the
1564 system-integrated TLS libraries, including email clients.
1565
f4c1088b
PP
1566PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1567 using a MIME ACL for non-SMTP local injection.
1568 Report and assistance in diagnosis by Warren Baker.
1569
c5c2182f
PP
1570TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1571
73431ca9
JH
1572JH/16 Fix comparisons for 64b. Bugzilla 1385.
1573
2d07a215
TL
1574TL/09 Add expansion variable $authenticated_fail_id to keep track of
1575 last id that failed so it may be referenced in subsequent ACL's.
1576
a30a8861
TL
1577TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1578 Alexander Miroch.
1579
33382dd9
TL
1580TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1581 ldap library initialization, allowing self-signed CA's to be
1582 used. Also properly sets require_cert option later in code by
1583 using NULL (global ldap config) instead of ldap handle (per
1584 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1585
046172e6
TL
1586TL/12 Enhanced documentation in the ratelimit.pl script provided in
1587 the src/util/ subdirectory.
1588
581d7bee 1589TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1590 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1591 EXPERIMENTAL_TPDA.
1592
1593TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1594 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1595 redis_servers = needs to be configured which will be used by the redis
1596 lookup. Patch from Warren Baker, of The Packet Hub.
1597
237b2cf2
TL
1598TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1599
9fc5a352
TL
1600TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1601 hostname or reverse DNS when processing a host list. Used suggestions
1602 from multiple comments on this bug.
1a7b746d 1603
b10e4ec2
TL
1604TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1605
e2cebd74
TL
1606TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1607 Missed a few lines, added it to make the runtest require no keyboard
1608 interaction.
1609
1610TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1611 contains upper case chars. Make router use caseful_local_part.
1612
2519e60d
TL
1613TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1614 support when GnuTLS has been built with p11-kit.
1615
e78e6ecf 1616
4263f395
PP
1617Exim version 4.80.1
1618-------------------
1619
1620PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1621 CVE-2012-5671
2c422e6f 1622 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1623
ea722490 1624
b1770b6e 1625Exim version 4.80
0599f9cf
PP
1626-----------------
1627
1628PP/01 Handle short writes when writing local log-files.
1629 In practice, only affects FreeBSD (8 onwards).
1630 Bugzilla 1053, with thanks to Dmitry Isaikin.
1631
23c7e742
NM
1632NM/01 Bugzilla 949 - Documentation tweak
1633
b322aac8
NM
1634NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1635 improved.
1636
4a891427
NM
1637NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1638
c1e794ba 1639PP/02 Implemented gsasl authenticator.
b322aac8 1640
97753960
PP
1641PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1642
1643PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1644 `pkg-config foo` for cflags/libs.
1645
df6303fa
PP
1646PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1647 with rest of GSASL and with heimdal_gssapi.
1648
7e6a8985
PP
1649PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1650 `pkg-config foo` for cflags/libs for the TLS implementation.
1651
f1e05cc7 1652PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1653 properties get this fed in as external SSF. A number of robustness
1654 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1655
4c287009
PP
1656PP/08 cyrus_sasl server now expands the server_realm option.
1657
b98bb9ac
PP
1658PP/09 Bugzilla 1214 - Log authentication information in reject log.
1659 Patch by Jeremy Harris.
1660
4a6a987a
PP
1661PP/10 Added dbmjz lookup type.
1662
c45dd180 1663PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1664
7db8d074
PP
1665PP/12 MAIL args handles TAB as well as SP, for better interop with
1666 non-compliant senders.
1667 Analysis and variant patch by Todd Lyons.
1668
eae0036b 1669NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1670 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1671 Patch from Dirk Mueller <dmueller@suse.com>
1672
dec5017e
PP
1673PP/13 tls_peerdn now print-escaped for spool files.
1674 Observed some $tls_peerdn in wild which contained \n, which resulted
1675 in spool file corruption.
1676
c80c5570
PP
1677PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1678 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1679 or write after TLS renegotiation, which otherwise led to messages
1680 "Got SSL error 2".
1681
076b11e2
PP
1682TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1683 as a tracking header (ie: a signed header comes before the signature).
1684 Patch from Wolfgang Breyha.
1685
5407bfff
JH
1686JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1687 comma-sep list; embedded commas doubled.
1688
9e45c72b
PP
1689JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1690
e74376d8
PP
1691PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1692 diagnostics.
1693 Report and patch from Dmitry Banschikov.
1694
4c04137d 1695PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1696 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1697 failures. We appear to now support TLS1.1+ with Exim.
1698
7be682ca
PP
1699PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1700 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1701 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1702 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1703
ef840681
PP
1704PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1705 NULL dereference. Report and patch from Alun Jones.
1706
5bfb4cdf
PP
1707PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1708 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1709 Not seeing resolver debug output on NetBSD, but suspect this is a
1710 resolver implementation change.
1711
c6e95d22
PP
1712PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1713 Left warnings. Added "eximon gdb" invocation mode.
1714
9cbad13b
PP
1715PP/21 Defaulting "accept_8bitmime" to true, not false.
1716
9ee44efb
PP
1717PP/22 Added -bw for inetd wait mode support.
1718
6a6084f8
PP
1719PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1720 locate the relevant includes and libraries. Made this the default.
1721
12dd53c7
PP
1722PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1723 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1724
9e45c72b 1725JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1726 This may cause build issues on older platforms.
1727
17c76198
PP
1728PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1729 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1730 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1731 Added SNI support via GnuTLS too.
af3498d6 1732 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1733
53947857 1734PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1735
eae0036b 1736PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1737 Applied second patch from Janne, implementing suggestion to default
1738 multiple-strings-in-record handling to match SPF spec.
eae0036b 1739
9e45c72b 1740JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1741
7390e768
PP
1742PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1743 read-only, out of scope).
1744 Patch from Wolfgang Breyha, report from Stuart Northfield.
1745
08488c86
PP
1746PP/29 Fix three issues highlighted by clang analyser static analysis.
1747 Only crash-plausible issue would require the Cambridge-specific
1748 iplookup router and a misconfiguration.
1749 Report from Marcin Mirosław.
1750
6475bd82
PP
1751PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1752
81f91683
PP
1753PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1754 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1755 As part of this, removing so much warning spew let me fix some minor
1756 real issues in debug logging.
1757
5779e6aa
PP
1758PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1759 assignment on my part. Fixed.
1760
3375e053
PP
1761PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1762 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1763 Janne Snabb (who went above and beyond: thank you).
1764
1765PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1766 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1767 relatively easy to get wrong. Should also expose TLS library linkage
1768 problems.
3375e053 1769
9d26b8c0
PP
1770PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1771 64-bit ${eval} (JH/03).
1772
57eb9e91 1773PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1774 GNU libc to support some of the 64-bit stuff, should not lead to
1775 conflicts. Defined before os.h is pulled in, so if a given platform
1776 needs to override this, it can.
1777
16880d1a
PP
1778PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1779 protection layer was required, which is not implemented.
1780 Bugzilla 1254, patch from Wolfgang Breyha.
1781
a799883d
PP
1782PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1783 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1784 tls_dhparam take prime identifiers. Also unbreak combination of
1785 OpenSSL+DH_params+TLSSNI.
1786
3ecab157 1787PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1788
0599f9cf 1789
867fcbf5
PP
1790Exim version 4.77
1791-----------------
1792
1793PP/01 Solaris build fix for Oracle's LDAP libraries.
1794 Bugzilla 1109, patch from Stephen Usher.
1795
f1a29782
TF
1796TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1797
ab42bd23
TK
1798TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1799 whitespace trailer
867fcbf5 1800
0ca0cf52
TF
1801TF/02 Fix a couple more cases where we did not log the error message
1802 when unlink() failed. See also change 4.74-TF/03.
1803
921b12ca
TF
1804TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1805 lock up or crash if it happened to be inside a call to libc when it
1806 got a SIGUSR1 from exiwhat.
1807
1808 The SIGUSR1 handler appends the current process status to the process
1809 log which is later printed by exiwhat. It used to use the general
1810 purpose logging code to do this, but several functions it calls are
1811 not safe for signals.
1812
1813 The new output code in the SIGUSR1 handler is specific to the process
1814 log, and simple enough that it's easy to inspect for signal safety.
1815 Removing some special cases also simplifies the general logging code.
1816 Removing the spurious timestamps from the process log simplifies
1817 exiwhat.
1818
c99ce5c9
TF
1819TF/04 Improved ratelimit ACL condition.
1820
1821 The /noupdate option has been deprecated in favour of /readonly which
1822 has clearer semantics. The /leaky, /strict, and /readonly update modes
1823 are mutually exclusive. The update mode is no longer included in the
1824 database key; it just determines when the database is updated. (This
4c04137d 1825 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1826
1827 Exim now checks that the per_* options are used with an update mode that
1828 makes sense for the current ACL. For example, when Exim is processing a
1829 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1830 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1831 must specify per_mail/readonly. If you omit the update mode it defaults to
1832 /leaky where that makes sense (as before) or /readonly where required.
1833
1834 The /noupdate option is now undocumented but still supported for
1835 backwards compatibility. It is equivalent to /readonly except that in
1836 ACLs where /readonly is required you may specify /leaky/noupdate or
1837 /strict/noupdate which are treated the same as /readonly.
1838
1839 A useful new feature is the /count= option. This is a generalization
1840 of the per_byte option, so that you can measure the throughput of other
1841 aggregate values. For example, the per_byte option is now equivalent
1842 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1843
1844 The per_rcpt option has been generalized using the /count= mechanism
1845 (though it's more complicated than the per_byte equivalence). When it is
1846 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1847 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1848 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1849 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1850 Note that using per_rcpt with a non-readonly update mode in more than
1851 one ACL will cause the recipients to be double-counted. (The per_mail
1852 and per_byte options don't have this problem.)
1853
1854 The handling of very low rates has changed slightly. If the computed rate
1855 is less than the event's count (usually one) then this event is the first
1856 after a long gap. In this case the rate is set to the same as this event's
1857 count, so that the first message of a spam run is counted properly.
1858
1859 The major new feature is a mechanism for counting the rate of unique
1860 events. The new per_addr option counts the number of different
1861 recipients that someone has sent messages to in the last time period. It
1862 behaves like per_rcpt if all the recipient addresses are different, but
1863 duplicate recipient addresses do not increase the measured rate. Like
1864 the /count= option this is a general mechanism, so the per_addr option
1865 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1866 example, measure the rate that a client uses different sender addresses
1867 with the options per_mail/unique=$sender_address. There are further
1868 details in the main documentation.
1869
3634fc25
TF
1870TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1871
792e8a19
TF
1872TF/06 Removed a few PCRE remnants.
1873
5901f0ab
TF
1874TF/07 Automatically extract Exim's version number from tags in the git
1875 repository when doing development or release builds.
1876
7f2a2a43
PP
1877PP/02 Raise smtp_cmd_buffer_size to 16kB.
1878 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1879
061b7ebd
PP
1880PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1881 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1882 Bugzilla 97.
1883
e12f8c32
PP
1884PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1885
9e949f00 1886PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1887 Bugzilla 1078. Patch from John Horne.
1888
1889PP/06 Stop make process more reliably on build failure.
1890 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1891
555ae6af 1892PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1893 Bugzilla 1089. Patch from Heiko Schlittermann.
1894
1895PP/08 Handle ${run} returning more data than OS pipe buffer size.
1896 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1897
6f7fe114
PP
1898PP/09 Handle IPv6 addresses with SPF.
1899 Bugzilla 860. Patch from Wolfgang Breyha.
1900
c566dd90
PP
1901PP/10 GnuTLS: support TLS 1.2 & 1.1.
1902 Bugzilla 1156.
89f897c3
PP
1903 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1904 Bugzilla 1095.
c566dd90 1905
d6cc7c78 1906PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1907 New compile-time build option, EXPAND_LISTMATCH_RHS.
1908 New expansion conditions, "inlist", "inlisti".
1909
0d0e4455
PP
1910PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1911
3399bb60 1912PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1913
1914PP/14 fix log_write() format string regression from TF/03.
1915 Bugzilla 1152. Patch from Dmitry Isaikin.
1916
0ca0cf52 1917
10906672
PP
1918Exim version 4.76
1919-----------------
1920
1921PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1922
754a0503
PP
1923PP/02 Harmonised TLS library version reporting; only show if debugging.
1924 Layout now matches that introduced for other libraries in 4.74 PP/03.
1925
c0c7b2da
PP
1926PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1927
e97d1f08
PP
1928PP/04 New "dns_use_edns0" global option.
1929
084c1d8c
PP
1930PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1931 Bugzilla 1098.
1932
4e7ee012
PP
1933PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1934 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1935
c8d52a00
PP
1936TK/01 Updated PolarSSL code to 0.14.2.
1937 Bugzilla 1097. Patch from Andreas Metzler.
1938
54e7ce4a
PP
1939PP/07 Catch divide-by-zero in ${eval:...}.
1940 Fixes bugzilla 1102.
1941
5ee6f336
PP
1942PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1943 Bugzilla 1104.
1944
c8d52a00 1945TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1946 format-string attack -- SECURITY: remote arbitrary code execution.
1947
1948TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1949 time unintentionally subject to list matching rules, letting the header
1950 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1951 arbitrary string expansion). This allowed for information disclosure.
1952
1953PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1954 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1955
10906672 1956
aa097c4c
NM
1957Exim version 4.75
1958-----------------
1959
4c04137d 1960NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1961 Bugzilla 1073
1962
7f3d9eff
TF
1963TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1964 This fixes portability to compilers other than gcc, notably
1965 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1966
159f52d2
TF
1967TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1968 makefiles for portability to HP-UX and POSIX correctness.
1969
0cc9542a
PP
1970PP/01 Permit LOOKUP_foo enabling on the make command-line.
1971 Also via indented variable definition in the Makefile.
1972 (Debugging by Oliver Heesakkers).
1973
f7274286
PP
1974PP/02 Restore caching of spamd results with expanded spamd_address.
1975 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1976
7b797365
PP
1977PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1978 Improves build reliability. Fix from: Frank Elsner
1979
caacae52
NM
1980NM/02 Fix wide character breakage in the rfc2047 coding
1981 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1982
09dcaba9
NM
1983NM/03 Allow underscore in dnslist lookups
1984 Fixes bug 1026. Patch from Graeme Fowler
1985
bc19a55b
PP
1986PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1987 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1988
bd4c9759
NM
1989NM/04 Fixed exiqgrep to cope with mailq missing size issue
1990 Fixes bug 943.
1991
b72aab72
PP
1992PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1993 is logged, to avoid truncation. Patch from John Horne.
1994
2fe76745
PP
1995PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1996 Patch from Jakob Hirsch.
1997
76aa570c
PP
1998PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1999 SQL string expansion failure details.
2000 Patch from Andrey Oktyabrski.
2001
f1e5fef5
PP
2002PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2003 Patch from Simon Arlott.
2004
4d805ee9
PP
2005PP/09 New lookups functionality failed to compile on old gcc which rejects
2006 extern declarations in function scope.
2007 Patch from Oliver Fleischmann
2008
cd59ab18
PP
2009PP/10 Use sig_atomic_t for flags set from signal handlers.
2010 Check getgroups() return and improve debugging.
2011 Fixed developed for diagnosis in bug 927 (which turned out to be
2012 a kernel bug).
2013
332f5cf3
PP
2014PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2015 Patch from Mark Zealey.
2016
29cfeb94
PP
2017PP/12 Bugzilla 1056: Improved spamd server selection.
2018 Patch from Mark Zealey.
2019
660242ad
PP
2020PP/13 Bugzilla 1086: Deal with maildir quota file races.
2021 Based on patch from Heiko Schlittermann.
2022
bc4bc4c5
PP
2023PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2024 Patch from Uwe Doering, sign-off by Michael Haardt.
2025
2e64baa9
NM
2026NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2027 variable declaration deep within a block. Bug and patch from
2028 Dennis Davis.
2029
4c04137d 2030PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2031
6bac1a9a
PP
2032PP/16 Make DISABLE_DKIM build knob functional.
2033
552193f0
NM
2034NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2035 Patch by Simon Arlott
baeee2c1 2036
1b587e48
TF
2037TF/03 Fix valgrind.h portability to C89 compilers that do not support
2038 variable argument macros. Our copy now differs from upstream.
2039
aa097c4c 2040
8c07b69f
TF
2041Exim version 4.74
2042-----------------
2043
2044TF/01 Failure to get a lock on a hints database can have serious
2045 consequences so log it to the panic log.
2046
c0ea85ab
TF
2047TF/02 Log LMTP confirmation messages in the same way as SMTP,
2048 controlled using the smtp_confirmation log selector.
2049
0761d44e
TF
2050TF/03 Include the error message when we fail to unlink a spool file.
2051
0a349494
PP
2052DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2053 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2054 for maintaining out-of-tree patches for some time.
2055
2056PP/01 Bugzilla 139: Documentation and portability issues.
2057 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2058 Handle per-OS dynamic-module compilation flags.
2059
fea24b2e
PP
2060PP/02 Let /dev/null have normal permissions.
2061 The 4.73 fixes were a little too stringent and complained about the
2062 permissions on /dev/null. Exempt it from some checks.
2063 Reported by Andreas M. Kirchwitz.
2064
6545de78
PP
2065PP/03 Report version information for many libraries, including
2066 Exim version information for dynamically loaded libraries. Created
2067 version.h, now support a version extension string for distributors
2068 who patch heavily. Dynamic module ABI change.
2069
1670ef10
PP
2070PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2071 privilege escalation vulnerability whereby the Exim run-time user
2072 can cause root to append content of the attacker's choosing to
2073 arbitrary files.
2074
c0886197
PP
2075PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2076 (Wolfgang Breyha)
2077
b7487bce
PP
2078PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2079 If dropping privileges for untrusted macros, we disabled normal logging
2080 on the basis that it would fail; for the Exim run-time user, this is not
2081 the case, and it resulted in successful deliveries going unlogged.
2082 Fixed. Reported by Andreas Metzler.
2083
8c07b69f 2084
97fd1e48 2085Exim version 4.73
ed7f7860 2086-----------------
97fd1e48
PP
2087
2088PP/01 Date: & Message-Id: revert to normally being appended to a message,
2089 only prepend for the Resent-* case. Fixes regression introduced in
2090 Exim 4.70 by NM/22 for Bugzilla 607.
2091
6901c596
PP
2092PP/02 Include check_rfc2047_length in configure.default because we're seeing
2093 increasing numbers of administrators be bitten by this.
2094
a8c8d6b5
JJ
2095JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2096
77bb000f
PP
2097PP/03 Bugzilla 994: added openssl_options main configuration option.
2098
a29e5231
PP
2099PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2100
ec5a0394 2101PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2102
55c75993
PP
2103PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2104
453a6645 2105PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2106 without a peer certificate, leading to a segfault because of an
2107 assumption that peers always have certificates. Be a little more
453a6645
PP
2108 paranoid. Problem reported by Martin Tscholak.
2109
8544e77a
PP
2110PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2111 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2112 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2113 CL also introduces -bmalware, various -d+acl logging additions and
2114 more caution in buffer sizes.
8544e77a 2115
83e029d5
PP
2116PP/09 Implemented reverse_ip expansion operator.
2117
ed7f7860
PP
2118PP/10 Bugzilla 937: provide a "debug" ACL control.
2119
7d9f747b
PP
2120PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2121
4b2241d2
PP
2122PP/12 Bugzilla 973: Implement --version.
2123
10385c15
PP
2124PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2125
dbc4b90d
PP
2126PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2127
532be449
PP
2128PP/15 Bugzilla 816: support multiple condition rules on Routers.
2129
6a8de854 2130PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2131 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2132 ignore trailing whitespace.
6a8de854 2133
5dc43717
JJ
2134JJ/02 prevent non-panic DKIM error from being sent to paniclog
2135
2136JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2137 "exim" to be used
55c75993 2138
3346ab01
PP
2139PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2140 Notification from Dr Andrew Aitchison.
2141
491fab4c
PP
2142PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2143 ExtendedDetectionInfo response format.
2144 Notification from John Horne.
2145
13eb9497
PP
2146PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2147 compatible.
2148
2149PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2150 XSL and documented dependency on system catalogs, with examples of how
2151 it normally works.
2152
7f36d675
DW
2153DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2154 access.
2155
c1d94452
DW
2156DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2157 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2158 configuration file which is writeable by the Exim user or group.
2159
e2f5dc15
DW
2160DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2161 of configuration files to cover files specified with the -C option if
2162 they are going to be used with root privileges, not just the default
2163 configuration file.
2164
cd25e41d
DW
2165DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2166 option (effectively making it always true).
2167
261dc43e
DW
2168DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2169 files to be used while preserving root privileges.
2170
fa32850b
DW
2171DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2172 that rogue child processes cannot use them.
2173
79d4bc3d
PP
2174PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2175 run-time user, instead of root.
2176
43236f35 2177PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2178 Exim run-time user without dropping privileges.
2179
fb08281f
DW
2180DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2181 result string, instead of calling string_vformat() twice with the same
2182 arguments.
3346ab01 2183
74935b98
DW
2184DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2185 for other users. Others should always drop root privileges if they use
2186 -C on the command line, even for a whitelisted configure file.
2187
90b6341f
DW
2188DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2189
57730b52
ML
2190NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2191
66581d1e 2192
465e92cf
JJ
2193Exim version 4.72
2194-----------------
2195
453a6645
PP
2196JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2197 $data_path, and $header_path variables; fixed documentation bugs and
2198 typos
465e92cf 2199
453a6645
PP
2200JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2201 exipick to access non-standard spools, including the "frozen" queue
2202 (Finput)
edae0343 2203
9bd3e22c
NM
2204NM/01 Bugzilla 965: Support mysql stored procedures.
2205 Patch from Alain Williams
2206
bb576ff7
NM
2207NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2208
5a1a5845
NM
2209NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2210 Patch from Andreas Metzler
2211
981a9fad
NM
2212NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2213 Patch from Kirill Miazine
2214
7fc497ee
NM
2215NM/05 Bugzilla 671: Added umask to procmail example.
2216
1a41defa
JJ
2217JJ/03 installed exipick 20100323.0, fixing doc bug
2218
a466095c 2219NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2220 directory. Notification and patch from Dan Rosenberg.
a466095c 2221
94a6bd0b
NM
2222TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2223
2224TK/02 Improve log output when DKIM signing operation fails.
2225
2226MH/01 Treat the transport option dkim_domain as a colon separated
2227 list, not as a single string, and sign the message with each element,
2228 omitting multiple occurences of the same signer.
2229
c1b141a8
NM
2230NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2231 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2232
b26eacf1 2233NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2234 Patch by Simon Arlott
2235
179c5980 2236PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2237 MBX locking. Notification from Dan Rosenberg.
179c5980 2238
9bd3e22c 2239
7c6d71af
NM
2240Exim version 4.71
2241-----------------
2242
7d9f747b 2243TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2244
f013fb92
NM
2245NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2246
0eb8eedd
NM
2247NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2248
663ee6d9
NM
2249NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2250
177ebd9b
NM
2251NM/04 Bugzilla 915: Flag broken perl installation during build.
2252
7c6d71af 2253
210f147e
NM
2254Exim version 4.70
2255-----------------
2256
cdd3bb85 2257TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2258 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2259
2260TK/02 Write list of recipients to X-Envelope-Sender header when building
2261 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2262 Hirsch).
cdd3bb85
TK
2263
2264TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2265 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2266 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2267
2268TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2269 by Mark Daniel Reidel <mr@df.eu>.
2270
210f147e
NM
2271NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2272 When building exim an external PCRE library is now needed -
2273 PCRE is a system library on the majority of modern systems.
2274 See entry on PCRE_LIBS in EDITME file.
2275
deafd5b3
NM
2276NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2277 conversation. Added nologin parameter to request.
7d9f747b 2278 Patch contributed by Kirill Miazine.
deafd5b3 2279
089793a4
TF
2280TF/01 Do not log submission mode rewrites if they do not change the address.
2281
5f16ca82
TF
2282TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2283
dae9d94e 2284NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2285 log files in place. Contributed by Roberto Lima.
dae9d94e 2286
7d9f747b 2287NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2288
06864c44
TF
2289TF/03 Bugzilla 615: When checking the local_parts router precondition
2290 after a local_part_suffix or local_part_prefix option, Exim now
2291 does not use the address's named list lookup cache, since this
2292 contains cached lookups for the whole local part.
2293
65a7d8c3 2294NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2295 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2296
23510047 2297TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2298
7d9f747b 2299NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2300
7d8eec3a 2301NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2302 Patch provided by Jan Srzednicki.
6c588e74 2303
89dec7b6
TF
2304TF/05 Leading white space used to be stripped from $spam_report which
2305 wrecked the formatting. Now it is preserved.
5f28a6e8 2306
a99de90c
TF
2307TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2308 that they are available at delivery time.
2309
e2803e40
TF
2310TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2311
7199e1ee
TF
2312TF/08 TLS error reporting now respects the incoming_interface and
2313 incoming_port log selectors.
2314
e276e04b
TF
2315TF/09 Produce a more useful error message if an SMTP transport's hosts
2316 setting expands to an empty string.
2317
ce552449 2318NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2319 Patch provided by Phil Pennock.
ce552449 2320
e765a0f1 2321NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2322 Patch provided by Richard Godbee.
e765a0f1 2323
4f054c63 2324NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2325 acl_smtp_notquit, added index entry.
4f054c63 2326
7d9f747b
PP
2327NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2328 Patch provided by Eugene Bujak.
24c929a2 2329
7d9f747b
PP
2330NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2331 accept(). Patch provided by Maxim Dounin.
cf73943b 2332
b52bc06e 2333NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2334 Patch provided by Phil Pennock.
b52bc06e 2335
447de4b0
NM
2336NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2337
4c69d561 2338NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2339 Patch provided by Brad "anomie" Jorsch.
4c69d561 2340
d5c39246 2341NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2342 Patch provided by Dean Brooks.
9b989985 2343
0b23848a
TK
2344TK/05 Add native DKIM support (does not depend on external libraries).
2345
8f3414a1 2346NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2347 Patch provided by Graeme Fowler.
e2aacdfd 2348
fb6f955d
NM
2349NM/16 Bugzilla 851: Documentation example syntax fix.
2350
2351NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2352
7d9f747b
PP
2353NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2354 lsearch.
dbb0bf41 2355
7d9f747b
PP
2356NM/19 Bugzilla 745: TLS version reporting.
2357 Patch provided by Phil Pennock.
f3766eb5 2358
7d9f747b
PP
2359NM/20 Bugzilla 167: bool: condition support.
2360 Patch provided by Phil Pennock.
36f12725 2361
7d9f747b
PP
2362NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2363 clients. Patch provided by Phil Pennock.
e6060e2c 2364
7d9f747b
PP
2365NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2366 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2367
7d9f747b
PP
2368NM/23 Bugzilla 687: Fix misparses in eximstats.
2369 Patch provided by Heiko Schlittermann.
d5c13d66 2370
7d9f747b
PP
2371NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2372 Patch provided by Heiko Schlittermann.
b2335c0b 2373
7d9f747b 2374NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2375 plus update to original patch.
f4cd9433 2376
7d9f747b 2377NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2378
7d9f747b
PP
2379NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2380 Patch provided by David Brownlee.
8dc71ab3 2381
7d9f747b 2382NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2383
7d9f747b 2384NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2385
7d9f747b 2386NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2387
7d9f747b 2388NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2389
17792b53 2390NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2391 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2392
7d9f747b
PP
2393NM/33 Bugzilla 898: Transport filter timeout fix.
2394 Patch by Todd Rinaldo.
52383f8f 2395
91576cec 2396NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2397 Patch by Serge Demonchaux.
5ca6d115 2398
7d9f747b
PP
2399NM/35 Bugzilla 39: Base64 decode bug fixes.
2400 Patch by Jakob Hirsch.
baee9eee 2401
7d9f747b 2402NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2403
7d9f747b 2404NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2405
7d9f747b 2406NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2407
7d9f747b 2408NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2409
deafd5b3 2410
47db1125
NM
2411Exim version 4.69
2412-----------------
2413
4b3504d0
TK
2414TK/01 Add preliminary DKIM support. Currently requires a forked version of
2415 ALT-N's libdkim that I have put here:
2416 http://duncanthrax.net/exim-experimental/
2417
2418 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2419 were called 'true' and it seems that C99 defines that as a reserved
2420 keyword to be used with 'bool' variable types. That means you could
2421 not include C99-style headers which use bools without triggering
2422 build errors in sieve.c.
2423
81ea09ca
NM
2424NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2425 as mailq or other aliases. Changed the --help handling significantly
2426 to do whats expected. exim_usage() emits usage/help information.
2427
f13cddcb
SC
2428SC/01 Added the -bylocaldomain option to eximstats.
2429
7d9f747b 2430NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2431
7d9f747b 2432NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2433
7d9f747b 2434NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2435
2436
eb4c0de6
PH
2437Exim version 4.68
2438-----------------
2439
2440PH/01 Another patch from the Sieve maintainer.
2441
6a3bceb1
PH
2442PH/02 When an IPv6 address is converted to a string for single-key lookup
2443 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2444 dots are used instead of colons so that keys in lsearch files need not
2445 contain colons. This was done some time before quoting was made available
2446 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2447 (notated using the quote facility) so as to distinguish them from IPv4
2448 keys. This meant that lookups for IP addresses in host lists did not work
2449 for iplsearch lookups.
2450
2451 This has been fixed by arranging for IPv6 addresses to be expressed with
2452 colons if the lookup type is iplsearch. This is not incompatible, because
2453 previously such lookups could never work.
2454
4c04137d 2455 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2456 ordinary lsearch keys. However, making the change in all cases is
2457 incompatible and would probably break a number of configurations.
2458
2e30fa9d
TK
2459TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2460 version.
2461
0806a9c5
MH
2462MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2463 conversion specification without a maximum field width, thereby enabling
2464 a rogue spamd server to cause a buffer overflow. While nobody in their
2465 right mind would setup Exim to query an untrusted spamd server, an
2466 attacker that gains access to a server running spamd could potentially
2467 exploit this vulnerability to run arbitrary code as the Exim user.
2468
ae276964
TK
2469TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2470 $primary_hostname instead of what libspf2 thinks the hosts name is.
2471
0f2cbd1b
MH
2472MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2473 a directory entry by the name of the lookup key. Previously, if a
2474 symlink pointed to a non-existing file or a file in a directory that
2475 Exim lacked permissions to read, a lookup for a key matching that
2476 symlink would fail. Now it is enough that a matching directory entry
2477 exists, symlink or not. (Bugzilla 503.)
2478
2b85bce7
PH
2479PH/03 The body_linecount and body_zerocount variables are now exported in the
2480 local_scan API.
2481
93655c46
PH
2482PH/04 Added the $dnslist_matched variable.
2483
6c512171
PH
2484PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2485 This means they are set thereafter only if the connection becomes
2486 encrypted.
2487
2488PH/06 Added the client_condition to authenticators so that some can be skipped
2489 by clients under certain conditions.
2490
aa6dc513
PH
2491PH/07 The error message for a badly-placed control=no_multiline_responses left
2492 "_responses" off the end of the name.
2493
a96603a0
PH
2494PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2495
8f240103
PH
2496PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2497 (without spaces) instead of just copying the configuration text.
2498
2499PH/10 Added the /noupdate option to the ratelimit ACL condition.
2500
d677b2f2
PH
2501PH/11 Added $max_received_linelength.
2502
d52120f2
PH
2503PH/12 Added +ignore_defer and +include_defer to host lists.
2504
64f2600a
PH
2505PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2506 way in which PCRE > 7.0 is built.
2507
8669f003
PH
2508PH/14 Implemented queue_only_load_latch.
2509
a4dc33a8
PH
2510PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2511 MAIL command. The effect was to mangle the value on 64-bit systems.
2512
d6a60c0f
PH
2513PH/16 Another patch from the Sieve maintainer.
2514
8f128379
PH
2515PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2516
8932dffe
PH
2517PH/18 If a system quota error occurred while trying to create the file for
2518 a maildir delivery, the message "Mailbox is full" was not appended to the
2519 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2520 only to a quota excession during the actual writing of the file.
d6a60c0f 2521
ddea74fa 2522PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2523 characters?) which causes problems in log lines. The DN values are now
2524 passed through string_printing() before being added to log lines.
2525
ddea74fa 2526PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2527 and InterBase are left for another time.)
2528
ddea74fa
PH
2529PH/21 Added message_body_newlines option.
2530
ce9f225c
PH
2531PH/22 Guard against possible overflow in moan_check_errorcopy().
2532
19897d52
PH
2533PH/23 POSIX allows open() to be a macro; guard against that.
2534
bc64a74d
PH
2535PH/24 If the recipient of an error message contained an @ in the local part
2536 (suitably quoted, of course), incorrect values were put in $domain and
2537 $local_part during the evaluation of errors_copy.
2538
eb4c0de6 2539
b4ed4da0
PH
2540Exim version 4.67
2541-----------------
2542
22ad45c9
MH
2543MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2544 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2545 Jan Srzednicki.
2546
b4ed4da0
PH
2547PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2548 issue a MAIL command.
2549
431b7361
PH
2550PH/02 In an ACL statement such as
2551
2552 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2553
2554 if a client was not listed at all, or was listed with a value other than
2555 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2556 the condition was not true (as it should be), so access was not denied.
2557 The bug was that the ! inversion was incorrectly passed on to the second
2558 item. This has been fixed.
2559
2560PH/03 Added additional dnslists conditions == and =& which are different from
2561 = and & when the dns lookup returns more than one IP address.
2562
83da1223
PH
2563PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2564 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2565
54fc8428
PH
2566PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2567 FSYNC, which compiles an option called disable_fsync that allows for
2568 bypassing fsync(). The documentation is heavily laced with warnings.
2569
34c5e8dd
SC
2570SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2571
bbe15da8
PH
2572PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2573 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2574 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2575 including adding "make clean"; (3) Added -fPIC when compiling the test
2576 dynamically loaded module, to get rid of a warning.
2577
0e8a9471
MH
2578MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2579 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2580 = 0s. The bug is otherwise harmless.
2581
f0872424
PH
2582PH/07 There was a bug in the dovecot authenticator such that the value of
2583 $auth1 could be overwritten, and so not correctly preserved, after a
2584 successful authentication. This usually meant that the value preserved by
2585 the server_setid option was incorrect.
2586
b01dd148
PH
2587PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2588
6bf342e1
PH
2589PH/09 Installed PCRE release 7.0.
2590
273f34d0
PH
2591PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2592 run for batched SMTP input. It is now run at the start of every message
2593 in the batch. While fixing this I discovered that the process information
2594 (output by running exiwhat) was not always getting set for -bs and -bS
2595 input. This is fixed, and it now also says "batched" for BSMTP.
2596
cf8b11a5
PH
2597PH/11 Added control=no_pipelining.
2598
41c7c167
PH
2599PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2600 patch, slightly modified), and move the expansion of helo_data till after
2601 the connection is made in the smtp transport (so it can use these
2602 values).
2603
9c57cbc0
PH
2604PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2605
f3f065bb
PH
2606PH/14 Added log_selector = +pid.
2607
047bdd8c
PH
2608PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2609
0ce9abe6
PH
2610PH/16 Add ${if forany and ${if forall.
2611
0e22dfd1
PH
2612PH/17 Added dsn_from option to vary the From: line in DSNs.
2613
4c590bd1
PH
2614PH/18 Flush SMTP output before performing a callout, unless control =
2615 no_callout_flush is set.
2616
09945f1e
PH
2617PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2618 was true (the default) a successful delivery failed to delete the retry
2619 item, thus causing premature timeout of the address. The bug is now
2620 fixed.
2621
c51b8e75
PH
2622PH/20 Added hosts_avoid_pipelining to the smtp transport.
2623
e28326d8 2624PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2625 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2626 other ACL rejections are.
2627
75b1493f
PH
2628PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2629 with slight modification.
2630
7c5214ec
PH
2631PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2632 draft, changing the syntax and factoring some duplicate code".
2633
4311097e
PH
2634PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2635 for deliveries of the second and subsequent messages over the same SMTP
2636 connection.
2637
29f89cad
PH
2638PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2639 ${reduce, with only minor "tidies".
2640
5e687460
SC
2641SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2642
c3611384
PH
2643PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2644 expansion side effects.
2645
5a11a7b4
PH
2646PH/27 When a message times out after an over-quota error from an Exim-imposed
2647 quota, the bounce message says "mailbox is full". This message was not
2648 being given when it was a system quota that was exceeded. It now should
2649 be the same.
2650
0e20aff9
MH
2651MH/03 Made $recipients available in local_scan(). local_scan() already has
2652 better access to the recipient list through recipients_list[], but
2653 $recipients can be useful in postmaster-provided expansion strings.
2654
ca86f471
PH
2655PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2656 in the case of a MAIL command with additional options following the
2657 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2658 were accidentally chopped off.
2659
a14e5636
PH
2660PH/29 SMTP synchronization checks are implemented when a command is read -
2661 there is a check that no more input is waiting when there shouldn't be
2662 any. However, for some commands, a delay in an ACL can mean that it is
2663 some time before the response is written. In this time, more input might
2664 arrive, invalidly. So now there are extra checks after an ACL has run for
2665 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2666 pipelining has not been advertised.
2667
ec95d1a6
PH
2668PH/30 MH's patch to allow iscntrl() characters to be list separators.
2669
42855d71
PH
2670PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2671 returned in the SMTP response when smtp_return_error_details was false.
2672 This has been fixed.
2673
57c2c631
PH
2674PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2675 instead of the C I/O that was originally supplied, because problems were
2676 reported on Solaris.
2677
58c01c94
PH
2678PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2679 Exim which did not show up earlier: it was assuming that a call to
2680 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2681 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2682 was a macro that became an assignment, so it seemed to work. This has
2683 changed to a proper function call with a void return, hence the compile
2684 error. Exim's code has been fixed.
2685
dee5a20a
PH
2686PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2687 cpus.
2688
d2ee6114
PH
2689PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2690
b2d5182b
PH
2691PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2692
79749a79
PH
2693PH/37 If a message is not accepted after it has had an id assigned (e.g.
2694 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2695 "Completed" line in the log. When some messages of this type were
2696 selected by exigrep, they were listed as "not completed". Others were
2697 picked up by some special patterns. I have improved the selection
2698 criteria to be more general.
79749a79 2699
c456d9bb
PH
2700PH/38 The host_find_failed option in the manualroute router can now be set
2701 to "ignore", to completely ignore a host whose IP address cannot be
2702 found. If all hosts are ignored, the behaviour is controlled by the new
2703 host_all_ignored option.
2704
cd9868ec
PH
2705PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2706 homing or because of multiple MX records with /mx) generated more than
2707 one IP address, and the following item turned out to be the local host,
2708 all the secondary addresses of the first item were incorrectly removed
2709 from the list, along with the local host and any following hosts (which
2710 is what is supposed to happen).
2711
ebeaf996
PH
2712PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2713 whoever called Exim into the -H file. In the case of the daemon it was
2714 behaving confusingly. When first started, it used values for whoever
2715 started the daemon, but after a SIGHUP it used the Exim user (because it
2716 calls itself on a restart). I have changed the code so that it now always
2717 uses the Exim user.
2718
2679d413
PH
2719PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2720 message are rejected with the same error (e.g. no authentication or bad
2721 sender address), and a DATA command is nevertheless sent (as can happen
2722 with PIPELINING or a stupid MUA), the error message that was given to the
2723 RCPT commands is included in the rejection of the DATA command. This is
2724 intended to be helpful for MUAs that show only the final error to their
2725 users.
2726
84024b72
PH
2727PH/42 Another patch from the Sieve maintainer.
2728
8005d38e
SC
2729SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2730 Eximstats - Fixed some broken HTML links and added missing column headers
2731 (Jez Hancock).
2732 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2733 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2734
3298c6c6
SC
2735SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2736
a43a27c5
PH
2737PH/43 Yet another patch from the Sieve maintainer.
2738
58eb016e 2739PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2740 the response to the final '.' that terminates a message, but only in the
2741 case where the client has not sent further data following the '.'
2742 (unfortunately, this is allowed). However, in many cases there won't be
2743 any further data because there won't be any more messages to send. A call
2744 to select() can be used: if it shows that the input is "ready", there is
2745 either input waiting, or the socket has been closed. An attempt to read
2746 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2747 would have sent an OK response which the client would never have see.
563b63fa
PH
2748 This could lead to message repetition. This fix should cure that, at
2749 least in a lot of common cases.
58eb016e 2750
b43a74ea
PH
2751PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2752 advertised in response to EHLO.
2753
b4ed4da0 2754
5dd1517f
PH
2755Exim version 4.66
2756-----------------
2757
2758PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2759 fixed by 4.65/MH/01 (is this a record?) are fixed:
2760
2761 (i) An empty string was always treated as zero by the numeric comparison
2762 operators. This behaviour has been restored.
2763
2764 (ii) It is documented that the numeric comparison operators always treat
2765 their arguments as decimal numbers. This was broken in that numbers
2766 starting with 0 were being interpreted as octal.
2767
2768 While fixing these problems I realized that there was another issue that
2769 hadn't been noticed. Values of message_size_limit (both the global option
2770 and the transport option) were treated as octal if they started with 0.
2771 The documentation was vague. These values are now always treated as
2772 decimal, and I will make that clear in the documentation.
2773
2774
93cfa765
TK
2775Exim version 4.65
2776-----------------
2777
2778TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2779 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2780 versions. (#438)
2781
d6066548
MH
2782MH/01 Don't check that the operands of numeric comparison operators are
2783 integers when their expansion is in "skipping" mode (fixes bug
2784 introduced by 4.64-PH/07).
2785
4362ff0d
PH
2786PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2787 child addresses, Exim now panics and dies. Previously, because the count
2788 is held in a short int, deliveries were likely to be lost. As such a
2789 large number of recipients for a single message is ridiculous
2790 (performance will be very, very poor), I have chosen to impose a limit
2791 rather than extend the field.
2792
93cfa765 2793
944e9e9c
TF
2794Exim version 4.64
2795-----------------
aa41d2de 2796
21d74bd9
TK
2797TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2798 leftover -K file (the existence of which was triggered by #402).
2799 While we were at it, introduced process PID as part of the -K
2800 filename. This should rule out race conditions when creating
2801 these files.
2802
2803TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2804 processing considerably. Previous code took too long for large mails,
2805 triggering a timeout which in turn triggers #401.
2806
2807TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2808 in the DK code in transports.c. sendfile() is not really portable,
2809 hence the _LINUX specificness.
944e9e9c
TF
2810
2811TF/01 In the add_headers option to the mail command in an Exim filter,
2812 there was a bug that Exim would claim a syntax error in any
2813 header after the first one which had an odd number of characters
2814 in the field name.
2815
2b1c6e3a
PH
2816PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2817 callout verification, Exim cached a "reject" for the entire domain. This
2818 is correct for most verifications, but it is not correct for a recipient
2819 verification with use_sender or use_postmaster set, because in that case
2820 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2821 case of MAIL FROM:<> rejection from other early rejections (e.g.
2822 rejection of HELO). When verifying a recipient using a non-null MAIL
2823 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2824 Whatever the result of the callout, the value of the domain cache is
2825 left unchanged (for any other kind of callout, getting as far as trying
2826 RCPT means that the domain itself is ok).
2827
1f872c80
PH
2828PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2829 gcc 4.1.1 threw up.
2830
2831PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2832 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2833 session, the daemon ignores ECONNECT errors and logs others; it now
2834 ignores EPIPE as well.
2835
d203e649
PH
2836PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2837 (quoted-printable decoding).
2838
cc2ed8f7 2839PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2840 later the small subsequent patch to fix an introduced bug.
f951fd57 2841
ddfcd446
PH
2842PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2843
d45b1de8
PH
2844PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2845
2846PH/08 An error is now given if message_size_limit is specified negative.
2847
38a0a95f 2848PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2849 to be given (somewhat) arbitrary names.
38a0a95f 2850
a2405d83
JJ
2851JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2852 in 4.64-PH/09.
2853
2854JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2855 miscellaneous code fixes
2856
6ea85e9a
PH
2857PH/10 Added the log_reject_target ACL modifier to specify where to log
2858 rejections.
2859
26da7e20
PH
2860PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2861 hostname. This is wrong, because it relates to the incoming message (and
2862 probably the interface on which it is arriving) and not to the outgoing
2863 callout (which could be using a different interface). This has been
2864 changed to use the value of the helo_data option from the smtp transport
2865 instead - this is what is used when a message is actually being sent. If
2866 there is no remote transport (possible with a router that sets up host
2867 addresses), $smtp_active_hostname is used.
6ea85e9a 2868
14aa5a05 2869PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2870 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2871 (a) The code assumed that strncpy() returns a negative number on buffer
2872 overflow, which isn't the case. Replaced with Exim's string_format()
2873 function.
2874 (b) There were several signed/unsigned issues. I just did the minimum
2875 hacking in of casts. There is scope for a larger refactoring.
2876 (c) The code used strcasecmp() which is not a standard C function.
2877 Replaced with Exim's strcmpic() function.
2878 (d) The code set only $1; it now sets $auth1 as well.
2879 (e) A simple test gave the error "authentication client didn't specify
2880 service in request". It would seem that Dovecot has changed its
2881 interface. Fortunately there's a specification; I followed it and
2882 changed what the client sends and it appears to be working now.
2883
ff75a1f7
PH
2884PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2885 decoding.
2886
e6f6568e
PH
2887PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2888 address A is aliased to B and C, where B exists and C does not. Without
2889 -v the output is "A verified" because verification stops after a
2890 successful redirection if more than one address is generated. However,
2891 with -v the child addresses are also verified. Exim was outputting "A
2892 failed to verify" and then showing the successful verification for C,
2893 with its parentage. It now outputs "B failed to verify", showing B's
2894 parentage before showing the successful verification of C.
2895
d6f6e0dc
PH
2896PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2897 look up a TXT record in a specific list after matching in a combined
2898 list.
2899
322050c2
PH
2900PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2901 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2902 they consult the DNS. I had assumed they would set it the way they
2903 wanted; and indeed my experiments on Linux seem to show that in some
2904 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2905 To be on the safe side, however, I have now made the interface to
2906 host_find_byname() similar to host_find_bydns(), with an argument
2907 containing the DNS resolver options. The host_find_byname() function now
2908 sets these options at its start, just as host_find_bydns() does. The smtp
2909 transport options dns_qualify_single and dns_search_parents are passed to
2910 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2911 of host_find_byname() use the default settings of RES_DEFNAMES
2912 (qualify_single) but not RES_DNSRCH (search_parents).
2913
08955dd3
PH
2914PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2915 spool_read_header() do less string testing, by means of a preliminary
2916 switch on the second character of optional "-foo" lines. (This is
2917 overdue, caused by the large number of possibilities that now exist.
2918 Originally there were few.) While I was there, I also converted the
2919 str(n)cmp tests so they don't re-test the leading "-" and the first
2920 character, in the hope this might squeeze out yet more improvement.
2921
1eccaa59
PH
2922PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2923 flag allowing group syntax was set by the header_syntax check but not
2924 turned off, possible causing trouble later; (2) The flag was not being
2925 set at all for the header_verify test, causing "group"-style headers to
2926 be rejected. I have now set it in this case, and also caused header_
2927 verify to ignore an empty address taken from a group. While doing this, I
2928 came across some other cases where the code for allowing group syntax
2929 while scanning a header line wasn't quite right (mostly, not resetting
2930 the flag correctly in the right place). These bugs could have caused
2931 trouble for malformed header lines. I hope it is now all correct.
2932
602e59e5
PH
2933PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2934 with the "reply" argument non-NULL. The code, however (which originally
2935 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2936 but it didn't always do it. This confused somebody who was copying the
2937 code for some other use. I have removed all the tests.
2938
411ef850
PH
2939PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2940 feature that was used to support insecure browsers during the U.S. crypto
2941 embargo. It requires special client support, and Exim is probably the
2942 only MTA that supported it -- and would never use it because real RSA is
2943 always available. This code has been removed, because it had the bad
2944 effect of slowing Exim down by computing (never used) parameters for the
2945 RSA_EXPORT functionality.
2946
7befa435
PH
2947PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2948 authenticator to fail if there's a tab character in the incoming data
2949 (there should never be unless someone is messing about, as it's supposed
2950 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2951 if the connection is using TLS or if the remote IP is the same as the
2952 local IP, and the "valid-client-cert option" if a client certificate has
2953 been verified.
2954
48da4259 2955PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2956 authenticators. This can be used for authorization after authentication
2957 succeeds. (In the case of plaintext, it servers for both authentication
2958 and authorization.)
2959
48da4259
PH
2960PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2961 if any retry times were supplied.
2962
d1d5595c
PH
2963PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2964 connection, where there is no client IP address to check. In this
2965 situation, the verify now always succeeds.
2966
0ef732d9
PH
2967PH/25 Applied John Jetmore's -Mset patch.
2968
328895cc
PH
2969PH/26 Added -bem to be like -Mset, but loading a message from a file.
2970
fd700877
PH
2971PH/27 In a string expansion for a processed (not raw) header when multiple
2972 headers of the same name were present, leading whitespace was being
2973 removed from all of them, but trailing whitespace was being removed only
2974 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2975 before concatenation. Completely empty headers in a concatenation (as
2976 before) are ignored.
fd700877 2977
8dce1a6f
PH
2978PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2979 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2980
17af4a17
PH
2981PH/29 [Removed. This was a change that I later backed out, and forgot to
2982 correct the ChangeLog entry (that I had efficiently created) before
2983 committing the later change.]
f6c332bd
PH
2984
2985PH/30 Exim was sometimes attempting to deliver messages that had suffered
2986 address errors (4xx response to RCPT) over the same connection as other
2987 messages routed to the same hosts. Such deliveries are always "forced",
2988 so retry times are not inspected. This resulted in far too many retries
2989 for the affected addresses. The effect occurred only when there were more
2990 hosts than the hosts_max_try setting in the smtp transport when it had
2991 the 4xx errors. Those hosts that it had tried were not added to the list
2992 of hosts for which the message was waiting, so if all were tried, there
2993 was no problem. Two fixes have been applied:
2994
2995 (i) If there are any address or message errors in an SMTP delivery, none
2996 of the hosts (tried or untried) are now added to the list of hosts
2997 for which the message is waiting, so the message should not be a
2998 candidate for sending over the same connection that was used for a
2999 successful delivery of some other message. This seems entirely
3000 reasonable: after all the message is NOT "waiting for some host".
3001 This is so "obvious" that I'm not sure why it wasn't done
3002 previously. Hope I haven't missed anything, but it can't do any
3003 harm, as the worst effect is to miss an optimization.
3004
3005 (ii) If, despite (i), such a delivery is accidentally attempted, the
3006 routing retry time is respected, so at least it doesn't keep
3007 hammering the server.
3008
c1114884
PH
3009PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3010 in ${readsocket because some servers need this prod.
3011
7a0743eb
PH
3012PH/32 Added some extra debug output when updating a wait-xxx database.
3013
0d85fa3f
PH
3014PH/33 The hint "could be header name not terminated by colon", which has been
3015 given for certain expansion errors for a long time, was not being given
3016 for the ${if def:h_colon_omitted{... case.
3017
1bf43b78
PH
3018PH/34 The spec says: "With one important exception, whenever a domain list is
3019 being scanned, $domain contains the subject domain." There was at least
3020 one case where this was not true.
3021
520de300
PH
3022PH/35 The error "getsockname() failed: connection reset by peer" was being
3023 written to the panic log as well as the main log, but it isn't really
3024 panic-worthy as it just means the connection died rather early on. I have
3025 removed the panic log writing for the ECONNRESET error when getsockname()
3026 fails.
3027
48c7f9e2
PH
3028PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3029 runs only) independently of the message's sender address. This meant
3030 that, if the 4xx error was in fact related to the sender, a different
3031 message to the same recipient with a different sender could confuse
4c04137d 3032 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3033 server, but other circumstances could also provoke similar problems.
3034 I have changed the default so that the retry time for these errors is now
3035 based a combination of the sender and recipient addresses. This change
3036 can be overridden by setting address_retry_include_sender=false in the
3037 smtp transport.
3038
99ea1c86
PH
3039PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3040 remote server are returned as part of bounce messages. This was not
3041 happening for LMTP over a pipe (the lmtp transport), but now it is the
3042 same for both kinds of LMTP.
3043
a2042e78
PH
3044PH/38 Despite being documented as not happening, Exim was rewriting addresses
3045 in header lines that were in fact CNAMEs. This is no longer the case.
3046
4fbcfc2e
PH
3047PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3048 and queue runs started by the daemon processed all messages. This has
3049 been fixed so that -R and -S can now usefully be given with -q<time>.
3050
aa41d2de
PH
3051PH/40 Import PCRE release 6.7 (fixes some bugs).
3052
af561417
PH
3053PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3054
3cc66b45
PH
3055PH/42 Give an error if -q is specified more than once.
3056
194cc0e4
PH
3057PH/43 Renamed the variables $interface_address and $interface_port as
3058 $received_ip_address and $received_port, to make it clear that these
3059 values apply to message reception, and not to the outgoing interface when
3060 a message is delivered. (The old names remain recognized, of course.)
3061
a401ddaa
PH
3062PH/44 There was no timeout on the connect() call when using a Unix domain
3063 socket in the ${readsocket expansion. There now is.
3064
4e88a19f
PH
3065PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3066 be meaningful with "accept".
3067
d7d7b289
SC
3068SC/01 Eximstats V1.43
3069 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3070
3071SC/02 Eximstats V1.44
3072 Use a glob alias rather than an array ref in the generated
3073 parser. This improves both readability and performance.
3074
3075SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3076 Collect SpamAssassin and rejection statistics.
3077 Don't display local sender or destination tables unless
3078 there is data to show.
3079 Added average volumes into the top table text output.
3080
3081SC/04 Eximstats V1.46
3082 Collect data on the number of addresses (recipients)
3083 as well as the number of messages.
3084
3085SC/05 Eximstats V1.47
3086 Added 'Message too big' to the list of mail rejection
3087 reasons (thanks to Marco Gaiarin).
3088
3089SC/06 Eximstats V1.48
3090 Mainlog lines which have GMT offsets and are too short to
3091 have a flag are now skipped.
3092
3093SC/07 Eximstats V1.49 (Alain Williams)
3094 Added the -emptyok flag.
3095
3096SC/08 Eximstats V1.50
3097 Fixes for obtaining the IP address from reject messages.
3098
0ea2a468
JJ
3099JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3100 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3101 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3102
3103JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3104 match 4.64-PH/13
3105
3106JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3107 are found, allow negative numbers in numeric criteria)
3108
3109JJ/06 exipick.20061117.2, added new $message_body_missing variable
3110
3111JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3112 to match changes made in 4.64-PH/43
3113
8a10f5a4
PH
3114PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3115
30e18802
PH
3116PH/47 Put in an explicit test for a DNS lookup of an address record where the
3117 "domain" is actually an IP address, and force a failure. This locks out
3118 those revolvers/nameservers that support "A-for-A" lookups, in
3119 contravention of the specifications.
3120
55728a4f
PH
3121PH/48 When a host name was looked up from an IP address, and the subsequent
3122 forward lookup of the name timed out, the host name was left in
3123 $sender_host_name, contrary to the specification.
d7d7b289 3124
d7837193
PH
3125PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3126 restricted to single-key lookups, Exim was not diagnosing an error if
3127 * or *@ was used with a query-style lookup.
3128
87054a31
PH
3129PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3130
ea2c01d2
MH
3131MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3132 long ago, but noone interested enough thought of it. Let's just say that
3133 the "1.1" means that there are some new functions that weren't there at
3134 some point in the past.
3135
e4fa6968
PH
3136PH/51 Error processing for expansion failure of helo_data from an smtp
3137 transport during callout processing was broken.
3138
56f5d9bd
PH
3139PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3140 tested/used via the -bh/-bhc/-bs options.
3141
922e1c28
PH
3142PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3143 bug, fixed in subsequent PCRE releases).
3144
21eb6e72
PH
3145PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3146 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3147
a0540757
PH
3148PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3149
944e9e9c 3150
478be7b0
SC
3151Exim version 4.63
3152-----------------
3153
3154SC/01 Use a glob alias rather than an array ref in eximstats generated
3155 parser. This improves both readability and performance.
3156
3157SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3158 Don't display local sender or destination tables in eximstats unless
3159 there is data to show.
3160 Added average volumes into the eximstats top table text output.
3161
3162SC/03 Collect data on the number of addresses (recipients) as well
3163 as the number of messages in eximstats.
3164
2b965a65
TF
3165TF/01 Correct an error in the documentation for the redirect router. Exim
3166 does (usually) call initgroups() when daemonizing.
478be7b0 3167
45b91596
PH
3168TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3169 with consistent privilege compared to when running as a daemon.
478be7b0 3170
c59f5781
TF
3171TF/03 Note in the spec that $authenticated_id is not set for local
3172 submissions from trusted users.
3173
90fc3069
TF
3174TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3175 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3176
6083aca0
TF
3177TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3178 by adding some example configuration directives to the default
3179 configuration file. A little bit of work is required to uncomment the
3180 directives and define how usernames and passwords are checked, but
3181 there is now a framework to start from.
3182
765b530f
PH
3183PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3184 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3185 without this. I don't know how relevant this is to other LDAP libraries.
3186
4e167a8c
PH
3187PH/02 Add the verb name to the "unknown ACL verb" error.
3188
4608d683
PH
3189PH/03 Magnus Holmgren's patch for filter_prepend_home.
3190
b8dc3e4a
PH
3191PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3192
5418e93b
PH
3193PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3194 directory not expanded when it should be if an expanded home directory
3195 was set for the address (which is overridden by the transport).
3196
b4a9bda2
PH
3197PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3198 libradius.
3199
45b91596
PH
3200PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3201 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3202 because it is too late at that time, and has no effect.
3203
5547e2c5
PH
3204PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3205 security issue with \' (bugzilla #107). I could not use the
3206 PQescapeStringConn() function, because it needs a PGconn value as one of
3207 its arguments.
3208
dbcef0ea
PH
3209PH/08 When testing addresses using -bt, indicate those final addresses that
3210 are duplicates that would not cause an additional delivery. At least one
3211 person was confused, thinking that -bt output corresponded to deliveries.
3212 (Suppressing duplicates isn't a good idea as you lose the information
3213 about possibly different redirections that led to the duplicates.)
3214
25257489
PH
3215PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3216 systems where poll() doesn't work, in particular OS X.
3217
c816d124
PH
3218PH/10 Added more information to debugging output for retry time not reached.
3219
a9ccd69a
PH
3220PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3221 operations in malware.c.
3222
75fa1910
PH
3223PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3224 signatures.
3225
a7d7aa58
PH
3226PH/13 If write_rejectlog was set false when logging was sent to syslog with
3227 syslog_duplication set false, log lines that would normally be written
3228 both the the main log and to the reject log were not written to syslog at
3229 all.
3230
42119b09
PH
3231PH/14 In the default configuration, change the use of "message" in ACL warn
3232 statements to "add_header".
3233
41609df5
PH
3234PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3235 not followed by a command (e.g. "seen endif").
3236
a5bd321b
PH
3237PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3238 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3239 latter.
3240
e85a7ad5 3241PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3242 so that it is now:
3243
e85a7ad5
PH
3244 ${if or { \
3245 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3246 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3247 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3248 }{no}{yes}}
3249
e85a7ad5
PH
3250 The Auto-Submitted: and various List- headers are standardised, whereas I
3251 don't think Precedence: ever was.
5dff5817 3252
d8fe1c03
PH
3253PH/18 Refactored debugging code in route_finduser() to show more information,
3254 in particular, the error code if getpwnam() issues one.
3255
16282d2b
PH