Fix bad use of library, copying string over itself
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
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
JH
62JH/12 Add client-ip info to non-pass iprev ${authres } lines.
63
7a8b9519
JH
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
JH
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
JH
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
8768d548
JH
101JH/21 Change as many as possible of the global flags into one-bit bitfields; these
102 should pack well giving a smaller memory footprint so better caching and
103 therefore performance. Group the declarations where this can't be done so
104 that the byte-sized flag variables are not interspersed among pointer
105 variables, giving a better chance of good packing by the compiler.
106
5455f548
JH
107JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
108 non-null, to avoid issues with sites running BATV. Previously reports were
109 sent with an empty envelope sender so looked like bounces.
110
25beaee4
MK
111JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
112 The ignore_error flag wasn't being returned from the filter subprocess so
113 was not set for later routers. Investigation and fix by Matthias Kurz.
114
7ea1237c 115JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 116 and a msg:complete for the whole, when a message is manually removed using
7ea1237c
MK
117 -Mrm. Developement by Matthias Kurz, hacked on by JH.
118
ebda598a
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119JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
120 a "Gnu special" function, asprintf() in the DB utility binary builds; I
121 hope that is portable enough.
122
570cb1bd
JH
123JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
124 requiring a known-CA anchor certificate; make it now rely entirely on the
125 TLSA as an anchor. Checking the name on the leaf cert against the name
126 on the A-record for the host is still done for TA (but not for EE mode).
127
eb58ddf5
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128JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
129 included in delivery lines for non-proxied connections, when compiled with
130 SUPPORT_SOCKS and running with proxy logging enabled.
131
ffbc20ed
MK
132JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
133 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
134 move the existing event to fire before the normal logging of message
135 failure so that custom logging is bracketed by normal logging.
136
4e928780
MK
137JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
138 msg:fail:internal event. Developement by Matthias Kurz.
139
75c121f0 140JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 141 far too small for todays use of crypto signatures stored there. Go all
75c121f0
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142 the way to the max DNS message size of 64kB, even though this might be
143 overmuch for IOT constrained device use.
144
e30f4f43
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145JH/31 Fix a bad use of a copy function, which could be used to pointlessly
146 copy a string over itself. The library routine is documented as not
147 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
148
9723f966 149
bb264f6b
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150Exim version 4.91
151-----------------
459fca58 152
c39c8870 153GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
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154 When redis_servers is set to a list of > 1 element, and the Redis servers
155 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
156 case of MOVED into a DEFER case instead, thus moving the query onto the
157 next server in the list. For a cluster of N elements, all N servers must
158 be defined in redis_servers.
c39c8870 159
0800ef83
GF
160GF/02 Catch and remove uninitialized value warning in exiqsumm
161 Check for existence of @ARGV before looking at $ARGV[0]
162
459fca58
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163JH/01 Replace the store_release() internal interface with store_newblock(),
164 which internalises the check required to safely use the old one, plus
165 the allocate and data copy operations duplicated in both (!) of the
166 extant use locations.
167
944e8b37
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168JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
169 modifier. This matches the restriction on the commandline.
170
bbfb5dcd
JH
171JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
172 Previously only the last row was returned.
173
a05d3e34
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174JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
175 we assumed that tags in the header were well-formed, and parsed the
176 element content after inspecting only the first char of the tag.
177 Assumptions at that stage could crash the receive process on malformed
178 input.
179
ce93c6d8
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180JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
181 While running the DKIM ACL we operate on the Permanent memory pool so that
182 variables created with "set" persist to the DATA ACL. Also (at any time)
183 DNS lookups that fail create cache records using the Permanent pool. But
184 expansions release any allocations made on the current pool - so a dnsdb
185 lookup expansion done in the DKIM ACL releases the memory used for the
186 DNS negative-cache, and bad things result. Solution is to switch to the
187 Main pool for expansions.
188 While we're in that code, add checks on the DNS cache during store_reset,
189 active in the testsuite.
190 Problem spotted, and debugging aided, by Wolfgang Breyha.
191
2577f55f
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192JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
193 When none of the hosts presented to a transport match an already-open
194 connection, close it and proceed with the list. Previously we would
195 queue the message. Spotted by Lena with Yahoo, probably involving
196 round-robin DNS.
197
5b6f7658
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198JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
199 Previously a spurious "250 OK id=" response was appended to the proper
200 failure response.
201
c11d665d
JH
202JH/08 The "support for" informational output now, which built with Content
203 Scanning support, has a line for the malware scanner interfaces compiled
204 in. Interface can be individually included or not at build time.
e5ba8aa7
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205
206JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
207 by the template makefile "src/EDITME". The "STREAM" support for an older
208 ClamAV interface method is removed.
c11d665d 209
ba0e37b1
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210JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
211 rows affected is given instead).
212
96508de1
JH
213JH/11 The runtime Berkeley DB library version is now additionally output by
214 "exim -d -bV". Previously only the compile-time version was shown.
215
06fdb9f7
JH
216JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
217 SMTP connection. Previously, when one had more receipients than the
218 first, an abortive onward connection was made. Move to full support for
219 multiple onward connections in sequence, handling cutthrough connection
220 for all multi-message initiating connections.
221
f83a760f
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222JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
223 routers. Previously, a multi-recipient message would fail to match the
224 onward-connection opened for the first recipient, and cause its closure.
225
f1fed05b
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226JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
227 a timeout on read on a GnuTLS initiating connection, resulting in the
228 initiating connection being dropped. This mattered most when the callout
229 was marked defer_ok. Fix to keep the two timeout-detection methods
230 separate.
231
051d5efa
JH
232JH/15 Relax results from ACL control request to enable cutthrough, in
233 unsupported situations, from error to silently (except under debug)
234 ignoring. This covers use with PRDR, frozen messages, queue-only and
235 fake-reject.
236
cf3cd306
HSHR
237HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
238
744976d4
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239JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
240 metadata, resulting in a crash in free().
241
aab9a843 242PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 243 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 244 Broken also in d185889f4, with init system revamp.
7be14582 245
83d2a861
JH
246JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
247 Previously we abruptly closed the connection after reading a malware-
248 found indication; now we go on to read the "scan ok" response line,
249 and send a quit.
250
6741531c
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251JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
252 ACL. Previously, a crash would result.
253
85e03244
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254JH/19 Speed up macro lookups during configuration file read, by skipping non-
255 macro text after a replacement (previously it was only once per line) and
256 by skipping builtin macros when searching for an uppercase lead character.
257
c0635b6d
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258JH/20 DANE support moved from Experimental to mainline. The Makefile control
259 for the build is renamed.
260
b808677c
JH
261JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
262 was allocated for every new TLS startup, meaning one per message. Fix
263 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
264
6678c382
JH
265JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
266 reported the original. Fix to report (as far as possible) the ACL
267 result replacing the original.
268
dec766a1
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269JH/23 Fix memory leak during multi-message connections using STARTTLS under
270 OpenSSL. Certificate information is loaded for every new TLS startup,
271 and the resources needed to be freed.
272
15ae19f9
JH
273JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
274
e6532c4a
JH
275JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
276 was not propagated.
277
2556b3c6
SA
278JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
279 DATA response info to the (existing) per-recipient response info for
280 the "C=" log element. It can have useful tracking info from the
281 destination system. Patch from Simon Arlott.
282
fc8cd529
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283JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
284 length value. Previously this would segfault.
285
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286HS/02 Support Avast multiline protoocol, this allows passing flags to
287 newer versions of the scanner.
288
e04bfa34
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289JH/28 Ensure that variables possibly set during message acceptance are marked
290 dead before release of memory in the daemon loop. This stops complaints
291 about them when the debug_store option is enabled. Discovered specifically
292 for sender_rate_period, but applies to a whole set of variables.
c232fc99
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293 Do the same for the queue-runner and queue-list loops, for variables set
294 from spool message files. Do the same for the SMTP per-message loop, for
295 certain variables indirectly set in ACL operations.
e04bfa34 296
ecce6d9a
JH
297JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
298 as a multi-recipient message from a mailinglist manager). The coding had
299 an arbitrary cutoff number of characters while checking for more input;
300 enforced by writing a NUL into the buffer. This corrupted long / fast
301 input. The problem was exposed more widely when more pipelineing of SMTP
302 responses was introduced, and one Exim system was feeding another.
303 The symptom is log complaints of SMTP syntax error (NUL chars) on the
304 receiving system, and refused recipients seen by the sending system
305 (propating to people being dropped from mailing lists).
306 Discovered and pinpointed by David Carter.
307
c9cf9ac4
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308JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
309 replaced by the ${authresults } expansion.
310
b3b37076
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311JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
312
830832c9
HSHR
313HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
314 allows proper process termination in container environments.
315
f64e8b5f
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316JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
317 Previously the "final dot" had a newline after it; ensure it is CR,LF.
318
8f0776b5
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319JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
320 and "err_perm", deprecated since 4.83 when the RFC-defined words
321 "temperror" and "permerror" were introduced.
322
857eaf37
JH
323JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
324 transport-filters or DKIM-signing. The restriction was lost in the
325 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 326 Extend the restriction to also cover ARC-signing.
857eaf37 327
c85476e9
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328JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
329 in defer=pass mode supply a 450 to the initiator. Previously the message
330 would be spooled.
331
405074ad
PP
332PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
333 tls_require_ciphers is used as before.
334
eb445b04
HSHR
335HS/03 Malware Avast: Better match the Avast multiline protocol. Add
336 "pass_unscanned". Only tmpfails from the scanner are written to
337 the paniclog, as they may require admin intervention (permission
338 denied, license issues). Other scanner errors (like decompression
339 bombs) do not cause a paniclog entry.
ad93c40f 340
d342446f
JH
341JH/36 Fix reinitialisation of DKIM logging variable between messages.
342 Previously it was possible to log spurious information in receive log
343 lines.
344
a28050f8
JH
345JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
346 triggered odd behaviour from Outlook Express clients.
347
ddd16464
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348PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
349 suffix list.
350
321ef002
JH
351JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
352 since the IETF WG has not yet settled on that versus the original
353 "bare" representation.
354
3203e7ba
JH
355JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
356 Previously the millisecond value corrupted the output.
357 Fix also for syslog_pid=no and log_selector +pid, for which the pid
358 corrupted the output.
359
bbfb5dcd 360
acfc18c3
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361Exim version 4.90
362-----------------
363
364JH/01 Rework error string handling in TLS interface so that the caller in
365 more cases is responsible for logging. This permits library-sourced
366 string to be attached to addresses during delivery, and collapses
367 pairs of long lines into single ones.
368
856d1e16
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369PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
370 during configuration. Wildcards are allowed and expanded.
371
b9df1829
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372JH/02 Rework error string handling in DKIM to pass more info back to callers.
373 This permits better logging.
374
875512a3
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375JH/03 Rework the transport continued-connection mechanism: when TLS is active,
376 do not close it down and have the child transport start it up again on
377 the passed-on TCP connection. Instead, proxy the child (and any
378 subsequent ones) for TLS via a unix-domain socket channel. Logging is
379 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 380 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 381
fc3f96af
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382JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
383 identical IP addresses on different listening ports. Will also affect
384 "exiwhat" output.
385
98913c8e
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386PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
387 add noisy ifdef guards to special-case this sillyness.
388 Patch from Bernd Kuhls.
389
8d909960
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390JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
391 than 255 are no longer allowed.
392
7006ee24
JH
393JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
394 Disable the session-cache too, which might reduce our load. Since we
395 currrectly use a new context for every connection, both as server and
396 client, there is no benefit for these.
397 GnuTLS appears to not support tickets server-side by default (we don't
398 call gnutls_session_ticket_enable_server()) but client side is enabled
399 by default on recent versions (3.1.3 +) unless the PFS priority string
400 is used (3.2.4 +).
401
6e411084
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402PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
403 <https://reproducible-builds.org/specs/source-date-epoch/>.
404
4c2471ca
JH
405JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
406 the check for any unsuccessful recipients did not notice the limit, and
407 erroneously found still-pending ones.
408
4e910c01
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409JH/08 Pipeline CHUNKING command and data together, on kernels that support
410 MSG_MORE. Only in-clear (not on TLS connections).
411
42055a33
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412JH/09 Avoid using a temporary file during transport using dkim. Unless a
413 transport-filter is involved we can buffer the headers in memory for
414 creating the signature, and read the spool data file once for the
415 signature and again for transmission.
416
eeb35890
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417JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
418 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 419 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 420
b7d3afcf
JH
421JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
422 case where the routing stage had gathered several addresses to send to
423 a host before calling the transport for the first, we previously failed
424 to close down TLS in the old transport process before passing the TCP
425 connection to the new process. The new one sent a STARTTLS command
426 which naturally failed, giving a failed delivery and bloating the retry
427 database. Investigation and fix prototype from Wolfgang Breyha.
428
40525d07
JH
429JH/12 Fix check on SMTP command input synchronisation. Previously there were
430 false-negatives in the check that the sender had not preempted a response
431 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 432 awareness of the SMTP input buffering.
40525d07 433
f33875c3
PP
434PP/04 Add commandline_checks_require_admin option.
435 Exim drops privileges sanely, various checks such as -be aren't a
436 security problem, as long as you trust local users with access to their
437 own account. When invoked by services which pass untrusted data to
438 Exim, this might be an issue. Set this option in main configuration
439 AND make fixes to the calling application, such as using `--` to stop
440 processing options.
441
a5ffa9b4
JH
442JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
443 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
444 responses to those, into a single TLS record each way (this usually means
445 a single packet). As a side issue, smtp_enforce_sync now works on TLS
446 connections.
925ac8e4 447
6600985a
PP
448PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
449 affects you only if you're dancing at the edge of the param size limits.
450 If you are, and this message makes sense to you, then: raise the
451 configured limit or use OpenSSL 1.1. Nothing we can do for older
452 versions.
453
ac4d558b
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454JH/14 For the "sock" variant of the malware scanner interface, accept an empty
455 cmdline element to get the documented default one. Previously it was
456 inaccessible.
457
e69636bc
JH
458JH/15 Fix a crash in the smtp transport caused when two hosts in succession
459 are unsuable for non-message-specific reasons - eg. connection timeout,
460 banner-time rejection.
461
a843a57e
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462JH/16 Fix logging of delivery remote port, when specified by router, under
463 callout/hold.
464
8e041ae0
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465PP/06 Repair manualroute's ability to take options in any order, even if one
466 is the name of a transport.
833c70bc
PP
467 Fixes bug 2140.
468
35a04365
HSHR
469HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
470
4226691b
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471JH/17 Change the list-building routines interface to use the expanding-string
472 triplet model, for better allocation and copying behaviour.
473
d185889f
JH
474JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
475 Previously it was constructed the first time a possibly-matching string
476 was met in the configuration file input during startup; now it is done
477 during compilation.
478
0a6c178c
JH
479JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
480 compatible one, to avoid the (poorly documented) possibility of a config
481 file in the working directory redirecting the DB files, possibly correpting
02745400 482 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 483
fae8970d
JH
484JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
485 cache-hot. Previously, although the result was properly cached, the
486 initial verify call returned a defer.
487
ad1a76fe 488JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
489 the main verify for receipient in uncached-mode.
490
ad1a76fe
JH
491JH/22 Retire historical build files to an "unsupported" subdir. These are
492 defined as "ones for which we have no current evidence of testing".
493
135e9496
JH
494JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
495 if present. Previously it was ignored.
496
f2ed27cf
JH
497JH/24 Start using specified-initialisers in C structure init coding. This is
498 a C99 feature (it's 2017, so now considered safe).
499
7eb0e5d2
JH
500JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
501 if was a fixed-sized field and bitmask ops via macros; it is now more
502 extensible.
503
4f9f4be4
504PP/07 GitHub PR 56: Apply MariaDB build fix.
505 Patch provided by Jaroslav Škarvada.
506
dc4de9cc
PP
507PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
508 during Coverity cleanups [4.87 JH/47]
509 Diagnosis and fix provided by Michael Fischer v. Mollard.
510
ea18931d
JH
511JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
512 the right size to place the terminating semicolon on its own folded
513 line, the header hash was calculated to an incorrect value thanks to
514 the (relaxed) space the fold became.
515
0768462d 516HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
517 and confused the parent.
518
848214f7
JH
519JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
520 which could crash as a result. This could lead to undeliverable messages.
521
9e0ed81f
JH
522JH/28 Logging: "next input sent too soon" now shows where input was truncated
523 for log purposes.
524
2540f2f8
JH
525JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
526 matters on fast-turnover and PID-randomising systems, which were getting
527 out-of-order delivery.
528
e5ab0ba9
JH
529JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
530 a possibly-overlapping copy. The symptom was that "Remote host closed
531 connection in response to HELO" was logged instead of the actual 4xx
532 error for the HELO.
533
e99a3a6c
JH
534JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
535 Previously only that bufferd was discarded, resulting in SYMTP command
536 desynchronisation.
537
18067c75
JH
538JH/32 DKIM: when a message has multiple signatures matching an identity given
539 in dkim_verify_signers, run the dkim acl once for each. Previously only
540 one run was done. Bug 2189.
541
72934ba7
JH
542JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
543 "panic the current process" to "deliberately defer". The panic log is
544 still written with the problem list name; the mail and reject logs now
545 get a temp-reject line for the message that was being handled, saying
546 something like "domains check lookup or other defer". The SMTP 451
547 message is still "Temporary local problem".
548
625667b6
JH
549JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
550 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
551 freed. CVE-2017-16943.
552
553HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
554 from SMTP input. Previously it was always done; now only done for DATA
555 and not BDAT commands. CVE-2017-16944.
625667b6 556
d21bf202
JH
557JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
558 to the message (such as an overlong header line). Previously this was
559 not done and we did not exit BDAT mode. Followon from the previous item
560 though a different problem.
561
acfc18c3 562
fd047340 563Exim version 4.89
acfc18c3 564-----------------
4c57a40e 565
9427e879 566JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 567 than -2003 did; needs libidn2 in addition to libidn.
fd047340 568
7b283890
JH
569JH/02 The path option on a pipe transport is now expanded before use.
570
4c57a40e
PP
571PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
572 Patch provided by "Björn", documentation fix added too.
573
5d036699
JH
574JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
575 missing a wire-to-host endian conversion.
576
f4630439
JH
577JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
578 close after a BDAT command line could be taken as a following command,
579 giving a synch failure. Fix by only checking for synch immediately
580 before acknowledging the chunk.
581
f988ce57
JS
582PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
583 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
584 macro. Patches provided by Josh Soref.
585
bd8fbe36
JH
586JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
587 Previously we did not; the RFC seems ambiguous and VRFY is not listed
588 by IANA as a service extension. However, John Klensin suggests that we
589 should.
590
591JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
592 the dkim code may be unix-mode line endings rather than smtp wire-format
593 CRLF, so prepend a CR to any bare LF.
fd047340 594
bd8fbe36 595JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
596 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
597
bd8fbe36
JH
598JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
599 the first were themselves being wrongly included in the feed into dkim
600 processing; with most chunk sizes in use this resulted in an incorrect
601 body hash calculated value.
602
eea19017
JH
603JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
604 DKIM signature block, for verification. Although advised against by
605 standards it is specifically not ruled illegal.
606
44e6651b
JH
607JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
608
609JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
610 missing a body hash (the bh= tag).
611
612JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
613 It seems that HAProxy sends the Proxy Protocol information in clear and
614 only then does a TLS startup, so do the same.
615
616JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
617 TCP connections (such as for Spamd) unless the daemon successfully set
618 Fast Open mode on its listening sockets. This fixes breakage seen on
619 too-old kernels or those not configured for Fast Open, at the cost of
620 requiring both directions being enabled for TFO, and TFO never being used
621 by non-daemon-related Exim processes.
622
623JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
624 endings, at least on the first header line. Try to canonify any that get
625 past that check, despite the cost.
626
b6040544
JH
627JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
628 now limited to an arbitrary five deep, while parsing addresses with the
629 strip_excess_angle_brackets option enabled.
630
f700ea4d
PP
631PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
632 instead leave the unprompted TLS handshake in socket buffer for the
633 TLS library to consume.
634
da88acae
PP
635PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
636
f6ef9370
PP
637PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
638
90341c71
JH
639JH/16 Drop variables when they go out of scope. Memory management drops a whole
640 region in one operation, for speed, and this leaves assigned pointers
641 dangling. Add checks run only under the testsuite which checks all
642 variables at a store-reset and panics on a dangling pointer; add code
643 explicitly nulling out all the variables discovered. Fixes one known
644 bug: a transport crash, where a dangling pointer for $sending_ip_address
645 originally assigned in a verify callout, is re-used.
646
1ec2ab36
PP
647PP/06 Drop '.' from @INC in various Perl scripts.
648
649PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
650
651PP/08 Reduce a number of compilation warnings under clang; building with
652 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
653 should be warning-free.
654
8b2b9480
PP
655JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
656
657HS/01 Fix portability problems introduced by PP/08 for platforms where
658 realloc(NULL) is not equivalent to malloc() [SunOS et al].
659
d953610f
HSHR
660HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
661 chunk. This allows us to accept broken chunked messages. We need a more
662 general solution here.
663
7dc5f827
PP
664PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
665 already-broken messages in the queue.
666
4bb432cb
PP
667JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
668
3b1a84c8
PP
669JH/19 Fix reference counting bug in routing-generated-address tracking.
670
902fbd69 671
8d042305
JH
672Exim version 4.88
673-----------------
4c57a40e 674
9094b84b
JH
675JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
676 supports it and a size is available (ie. the sending peer gave us one).
8d042305 677
03d5892b
JH
678JH/02 The obsolete acl condition "demime" is removed (finally, after ten
679 years of being deprecated). The replacements are the ACLs
680 acl_smtp_mime and acl_not_smtp_mime.
681
4b0fe319
JH
682JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
683 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
684 or even an in-clear connection were permitted. Now, if the host lookup
685 was dnssec and dane was requested then the host is only used if the
686 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
687 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
688 if one fails this test.
689 This means that a poorly-configured remote DNS will make it incommunicado;
690 but it protects against a DNS-interception attack on it.
691
789f8a4f
JH
692JH/04 Bug 1810: make continued-use of an open smtp transport connection
693 non-noisy when a race steals the message being considered.
694
23bb6982 695JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 696 self-signed certificate for inbound TLS connections.
23bb6982 697
0bd1b1ed 698JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 699 in rewrites and routers.
0bd1b1ed 700
20b9a2dc
JH
701JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
702 and logged a warning sing 4.83; now they are a configuration file error.
703
05392bbc
JH
704JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
705 (lacking @domain). Apply the same qualification processing as RCPT.
706
1a6230a3
JH
707JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
708
cfab9d68
JH
709JH/10 Support ${sha256:} applied to a string (as well as the previous
710 certificate).
711
98c82a3d
JH
712JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
713 a cutthrough deliver is pending, as we always want to make a connection.
714 This also avoids re-routing the message when later placing the cutthrough
715 connection after a verify cache hit.
716 Do not update it with the verify result either.
717
718JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
719 when routing results in more than one destination address.
720
ae8386f0
JH
721JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
722 signing (which inhibits the cutthrough capability). Previously only
723 the presence of an option was tested; now an expansion evaluating as
724 empty is permissible (obviously it should depend only on data available
725 when the cutthrough connection is made).
726
0d9fa8c0
JH
727JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
728 the relevant preceding SMTP command did not note the pipelining mode.
729
3581f321
JH
730JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
731 Previously they were not counted.
732
ef3a1a30
JH
733JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
734 as one having no matching records. Previously we deferred the message
735 that needed the lookup.
736
4c04137d 737JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
738 distinguished as "(=".
739
1435d4b2
JH
740JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
741 for missing MX records. Previously it only worked for missing A records.
742
eea0defe
JB
743JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
744
745JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
746 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 747
4c04137d 748JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
749 even for a "none" policy. Patch from Tony Meyer.
750
1c788856
JH
751JH/22 Fix continued use of a connection for further deliveries. If a port was
752 specified by a router, it must also match for the delivery to be
753 compatible.
754
e3b1f624
JH
755JH/23 Bug 1874: fix continued use of a connection for further deliveries.
756 When one of the recipients of a message was unsuitable for the connection
757 (has no matching addresses), we lost track of needing to mark it
758 deferred. As a result mail would be lost.
759
a57ce043
JH
760JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
761
f59aaaaa 762JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
763 takes up less space and should be simpler to maintain. Merge the ACL
764 condition decode tables also, with similar effect.
d7bed771 765
d1f9fb42
JH
766JH/26 Fix problem with one_time used on a redirect router which returned the
767 parent address unchanged. A retry would see the parent address marked as
768 delivered, so not attempt the (identical) child. As a result mail would
769 be lost.
770
92b0827a
JH
771JH/27 Fix a possible security hole, wherein a process operating with the Exim
772 UID can gain a root shell. Credit to http://www.halfdog.net/ for
773 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
774 itself :(
775
ddf1b11a
JH
776JH/28 Enable {spool,log} filesystem space and inode checks as default.
777 Main config options check_{log,spool}_{inodes,space} are now
778 100 inodes, 10MB unless set otherwise in the configuration.
779
3cc3f762
JH
780JH/29 Fix the connection_reject log selector to apply to the connect ACL.
781 Previously it only applied to the main-section connection policy
782 options.
783
ae5afa61
JH
784JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
785
317e40ac
PP
786PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
787 by me. Added RFC7919 DH primes as an alternative.
788
8b0fb68e
PP
789PP/02 Unbreak build via pkg-config with new hash support when crypto headers
790 are not in the system include path.
791
ad7fc6eb 792JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 793 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
794 Exim did stdio operations after fclose. This was exposed by a recent
795 change which nulled out the file handle after the fclose.
ad7fc6eb 796
ee5b1e28
JH
797JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
798 signed directly by the cert-signing cert, rather than an intermediate
799 OCSP-signing cert. This is the model used by LetsEncrypt.
800
5ddc9771
JH
801JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
802
8d73599f
JH
803HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
804 an incoming connection.
805
446415f5
HSHR
806HS/02 Bug 1802: Do not half-close the connection after sending a request
807 to rspamd.
808
8e53a4fc
HSHR
809HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
810 fallback to "prime256v1".
8d042305 811
87cb4a16 812JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 813 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
814
815
0d9b78be
JH
816Exim version 4.87
817-----------------
4c57a40e 818
82d14d6a
JH
819JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
820 and 3.4.4 - once the server is enabled to respond to an OCSP request
821 it does even when not requested, resulting in a stapling non-aware
822 client dropping the TLS connection.
0d9b78be 823
6c6d6e48
TF
824TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
825 support variable-length bit vectors. No functional change.
826
ac881e27
TF
827TF/02 Improve the consistency of logging incoming and outgoing interfaces.
828 The I= interface field on outgoing lines is now after the H= remote
829 host field, same as incoming lines. There is a separate
830 outgoing_interface log selector which allows you to disable the
831 outgoing I= field.
832
c8899c20
JH
833JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
834 If not running log_selector +smtp_connection the mainlog would be held
835 open indefinitely after a "too many connections" event, including to a
836 deleted file after a log rotate. Leave the per net connection logging
837 leaving it open for efficiency as that will be quickly detected by the
838 check on the next write.
839
f1b81d81
HSHR
840HS/01 Bug 1671: Fix post transport crash.
841 Processing the wait-<transport> messages could crash the delivery
842 process if the message IDs didn't exist for some reason. When
843 using 'split_spool_directory=yes' the construction of the spool
844 file name failed already, exposing the same netto behaviour.
845
f38917cc
JH
846JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
847 mime_regex ACL conditions.
848
895fbaf2
JH
849JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
850 to DSN fail messages (bounces): remote IP, remote greeting, remote response
851 to HELO, local diagnostic string.
852
805bb5c3
JH
853JH/05 Downgrade message for a TLS-certificate-based authentication fail from
854 log line to debug. Even when configured with a tls authenticator many
855 client connections are expected to not authenticate in this way, so
856 an authenticate fail is not an error.
857
56c2a7be
HSHR
858HS/02 Add the Exim version string to the process info. This way exiwhat
859 gives some more detail about the running daemon.
860
4c04137d 861JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
862 matter for fast-change records such as DNSBLs.
863
6f6dedcc
JH
864JH/07 Bug 1678: Always record an interface option value, if set, as part of a
865 retry record, even if constant. There may be multiple transports with
866 different interface settings and the retry behaviour needs to be kept
867 distinct.
868
0f557e90
JH
869JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
870
871JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
872
ec0eb1a3
JH
873JH/10 Bug 840: fix log_defer_output option of pipe transport
874
41e93589
JH
875JH/11 Bug 830: use same host for all RCPTS of a message, even under
876 hosts_randomize. This matters a lot when combined with mua_wrapper.
877
98b98887 878JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
879 ${quote_pgsql:<string>} operator.
880
98b98887
JH
881JH/13 Bug 1708: avoid misaligned access in cached lookup.
882
858e91c2
JH
883JH/14 Change header file name for freeradius-client. Relevant if compiling
884 with Radius support; from the Gentoo tree and checked under Fedora.
885
886JH/15 Bug 1712: Introduce $prdr_requested flag variable
887
6ff55e50
JH
888JH/16 Bug 1714: Permit an empty string as expansion result for transport
889 option transport_filter, meaning no filtering.
890
3b957582
JB
891JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
892
23f3dc67
JH
893JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
894 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 895 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
896 If a server certificate is not supplied (via tls_certificate) an error is
897 logged, and clients will find TLS connections fail on startup. Presumably
898 they will retry in-clear.
899 Packagers of Exim are strongly encouraged to create a server certificate
900 at installation time.
901
240c288f
JH
902HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
903 with the $config_file variable.
904
5ef5dd52
JB
905JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
906 in transport context, after the attempt, and per-recipient. The latter type
907 is per host attempted. The event data is the error message, and the errno
908 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 909 and the trailing two digits of the smtp 4xx response.
5ef5dd52 910
e161710d
GF
911GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
912 to write to mainlog (or rejectlog, paniclog) in the window between file
913 creation and permissions/ownership being changed. Particularly affects
914 installations where exicyclog is run as root, rather than exim user;
915 result is that the running daemon panics and dies.
916
a159f203
JH
917JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
918
7f06582c
JH
919JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
920 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
921 "pri" and "weight". Note that the previous implicit priority given by the
922 list order is no longer honoured.
923
4c04137d 924JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
925 for DKIM processing.
926
f0989ec0
JH
927JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
928 by defining SUPPORT_SOCKS.
74f150bf 929
cee5f132
JH
930JH/26 Move PROXY support from Experimental to mainline, enabled for a build
931 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
932 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
933 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 934
8c5d388a
JH
935JH/27 Move Internationalisation support from Experimental to mainline, enabled
936 for a build by defining SUPPORT_I18N
937
2d8d625b
JH
938JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
939 of the query string, and make ${quote_redis:} do that quoting.
940
0cbf2b82
JH
941JH/29 Move Events support from Experimental to mainline, enabled by default
942 and removable for a build by defining DISABLE_EVENT.
943
f2f2c91b
JH
944JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
945
ce325893
JH
946JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
947 cached by the daemon.
948
de78e2d5
JH
949JH/32 Move Redis support from Experimental to mainline, enabled for a build
950 by defining LOOKUP_REDIS. The libhiredis library is required.
951
379ba7d0
JH
952JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
953 keys are given for lookup.
954
f444c2c7
JH
955JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
956 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
957 only supported when built with TLS support. The PolarSSL SHA routines
958 are still used when the TLS library is too old for convenient support.
f444c2c7 959
a57b6200
JH
960JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
961 openssl_options), for security. OpenSSL forces this from version 1.1.0
962 server-side so match that on older versions.
963
07c73177 964JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 965 allocation for $value could be released as the expansion processing
07c73177 966 concluded, but leaving the global pointer active for it.
fa01e4f8 967
4f6ae5c3
JH
968JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
969 and to use the domains and local_parts ACL conditions.
970
1bc460a6
JH
971JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
972 incorrectly not doubled on cutthrough transmission, hence seen as a
973 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 974 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
975 via the normal store-and-forward channel. This could result in duplicates
976 received - but deduplicating mailstores were liable to retain only the
977 initial truncated version.
978
ab9152ff 979JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 980
67e87fcf
JH
981JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
982
ab9152ff
JH
983JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
984 we're in there, support oversigning also; bug 1309.
985
af483912
JH
986JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
987
bc3c7bb7 988HS/04 Add support for keep_environment and add_environment options.
df3def24 989
13559da6
JH
990JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
991 either intentional arithmetic overflow during PRNG, or testing config-
992 induced overflows.
993
59eaad2b
JH
994JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
995 delivery resulted in actual delivery. Cancel cutthrough before DATA
996 stage.
997
f9334a28
JH
998JH/45 Fix cutthrough, when connection not opened by verify and target hard-
999 rejects a recipient: pass the reject to the originator.
1000
dc8091e7
JH
1001JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1002 Many were false-positives and ignorable, but it's worth fixing the
1003 former class.
1004
dfe7d917
JH
1005JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1006 for the new environment-manipulation done at startup. Move the routines
1007 from being local to tls.c to being global via the os.c file.
1008
93cc2d6e
JH
1009JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1010 an extract embedded as result-arg for a map, the first arg for extract
1011 is unavailable so we cannot tell if this is a numbered or keyed
1012 extraction. Accept either.
1013
13559da6 1014
9c695f6d
JH
1015Exim version 4.86
1016-----------------
4c57a40e 1017
9c695f6d
JH
1018JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1019 expanded.
1020
506900af
JH
1021JH/02 The smtp transport option "multi_domain" is now expanded.
1022
ad07e9ad
JH
1023JH/03 The smtp transport now requests PRDR by default, if the server offers
1024 it.
1025
01a4a5c5 1026JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1027 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1028 can be used to disable this per-host. The build option
1029 EXPERIMENTAL_CERTNAMES is withdrawn.
1030
cb1d7830 1031JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1032 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1033 For GnuTLS, only version 3.0.20 or later.
1034
610ff438 1035JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1036 (but not required) by default. The verification status is now logged by
1037 default, for both outbound TLS and client-certificate supplying inbound
1038 TLS connections
610ff438 1039
f926e272
JH
1040JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1041 sites use this now.
1042
50dc7409
JH
1043JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1044 Status Notification (bounce) messages are now MIME format per RFC 3464.
1045 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1046 under the control of the dsn_advertise_hosts option, and routers may
1047 have a dsn_lasthop option.
1048
0f0c8159
JH
1049JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1050 default, modifiable by a malware= option. The list separator for
23763898 1051 the options can now be changed in the usual way. Bug 68.
4e71661f 1052
1ad6489e
JH
1053JH/10 The smtp_receive_timeout main option is now expanded before use.
1054
aeaf5db3
JH
1055JH/11 The incoming_interface log option now also enables logging of the
1056 local interface on delivery outgoing connections.
1057
5032d1cf
JH
1058JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1059 if the interface and destination host and port all match.
1060
7e8360e6
JH
1061JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1062 /defer_ok option.
1063
c5f280e2
AL
1064JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1065 Patch from Andrew Lewis.
1066
fd4d8871 1067JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1068 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1069 modifiers per server. Patch originally by <rommer@active.by>.
1070
1071JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1072 and remote servers. Remote servers can be IPv6 addresses, and
1073 specify a port-range.
fd4d8871 1074
23763898
JH
1075JH/17 Bug 68: The spamd_address main option now supports an optional
1076 timeout value per server.
1077
2ad78978
JH
1078JH/18 Bug 1581: Router and transport options headers_add/remove can
1079 now have the list separator specified.
1080
8a512ed5 1081JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1082 option values.
8a512ed5 1083
82c0c8ea 1084JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1085 under OpenSSL.
1086
cc00f4af
JH
1087JH/21 Support for the A6 type of dns record is withdrawn.
1088
82c0c8ea
JH
1089JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1090 rather than the verbs used.
1091
b980ed83
JH
1092JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1093 from 255 to 1024 chars.
1094
6c9ed72e
JH
1095JH/24 Verification callouts now attempt to use TLS by default.
1096
cfab9d68 1097HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1098 are generic router options now. The defaults didn't change.
50dc7409 1099
f846c8f5
JH
1100JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1101 Original patch from Alexander Shikoff, worked over by JH.
1102
fd4c285c
HSHR
1103HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1104 files if ZCAT_COMMAND is not executable.
1105
4c04137d 1106JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1107
d2a2c69b
JH
1108JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1109
8241d8dd
JH
1110JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1111 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1112 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1113 (and we were inconsistent anyway for A-only vs AAAA+A).
1114
1f12df4d
JH
1115JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1116
1f155f8e
JH
1117JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1118 when evaluating $sender_host_dnssec.
1119
1705dd20
JH
1120JH/31 Check the HELO verification lookup for DNSSEC, adding new
1121 $sender_helo_dnssec variable.
1122
038597d2
PP
1123JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1124
474f71bf
JH
1125JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1126
7137ca4b
JH
1127JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1128
dcb1095c
JH
1129JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1130 documented as working, but never had. Support all but $spam_report.
1131
2f460950
JH
1132JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1133 added for tls authenticator.
1134
2f680c0c
HSHR
1135HS/03 Add perl_taintmode main config option
1136
9c695f6d 1137
e449c3b0
TL
1138Exim version 4.85
1139-----------------
4c57a40e 1140
e449c3b0
TL
1141TL/01 When running the test suite, the README says that variables such as
1142 no_msglog_check are global and can be placed anywhere in a specific
1143 test's script, however it was observed that placement needed to be near
1144 the beginning for it to behave that way. Changed the runtest perl
1145 script to read through the entire script once to detect and set these
1146 variables, reset to the beginning of the script, and then run through
1147 the script parsing/test process like normal.
1148
ac20058f
TL
1149TL/02 The BSD's have an arc4random API. One of the functions to induce
1150 adding randomness was arc4random_stir(), but it has been removed in
1151 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1152 function when detected.
1153
a9b8ec8b
JH
1154JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1155 cause callback expansion.
1156
6286d7c4
TL
1157TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1158 syntax errors in an expansion can be treated as a string instead of
1159 logging or causing an error, due to the internal use of bool_lax
1160 instead of bool when processing it.
1161
0f06b4f2 1162JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1163 server certificates when making smtp deliveries.
1164
be36e572
JH
1165JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1166
ac4ef9bd
JH
1167JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1168
0eb51736
TL
1169TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1170
c713ca4b
TL
1171TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1172 Merged patch from Sebastian Wiedenroth.
e449c3b0 1173
bd21a787
WB
1174JH/05 Fix results-pipe from transport process. Several recipients, combined
1175 with certificate use, exposed issues where response data items split
1176 over buffer boundaries were not parsed properly. This eventually
1177 resulted in duplicates being sent. This issue only became common enough
4c04137d 1178 to notice due to the introduction of connection certificate information,
bd21a787
WB
1179 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1180
8bc732e8
JH
1181JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1182 size buffer was used, resulting in syntax errors when an expansion
1183 exceeded it.
1184
a7fec7a7
JH
1185JH/07 Add support for directories of certificates when compiled with a GnuTLS
1186 version 3.3.6 or later.
1187
4c04137d 1188JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1189 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1190 both become "event_action", the variables become $event_name, $event_data
aec45841 1191 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1192 routers, transports and related events. The tls:cert event is now also
1193 raised for inbound connections, if the main configuration event_action
1194 option is defined.
774ef2d7 1195
eca4debb
TL
1196TL/06 In test suite, disable OCSP for old versions of openssl which contained
1197 early OCSP support, but no stapling (appears to be less than 1.0.0).
1198
8d692470
JH
1199JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1200 server certificate names available under the smtp transport option
1201 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1202 matches.
1203
e9477a08
JH
1204JH/10 Time-related extraction expansions from certificates now use the main
1205 option "timezone" setting for output formatting, and are consistent
1206 between OpenSSL and GnuTLS compilations. Bug 1541.
1207
ad4c5ff9
JH
1208JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1209 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1210
1211JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1212 include certificate info, eximon was claiming there were spoolfile
1213 syntax errors.
1214
3394b36a 1215JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1216
1217JH/14 Log delivery-related information more consistently, using the sequence
1218 "H=<name> [<ip>]" wherever possible.
1219
3394b36a
TL
1220TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1221 are problematic for Debian distribution, omit them from the release
1222 tarball.
1223
ad4c5ff9
JH
1224JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1225
4c04137d 1226JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1227 Bug 1561.
1228
1229JH/17 Fix a null-indirection in certextract expansions when a nondefault
1230 output list separator was used.
1231
8bc732e8 1232
1f0ebb98
TL
1233Exim version 4.84
1234-----------------
09728d20
TL
1235TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1236 checkers that were complaining about end of non-void function with no
1237 return.
1f0ebb98 1238
a612424f 1239JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1240 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1241
1242JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1243
1244TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1245 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1246
1f0ebb98 1247
c0e56233
TF
1248Exim version 4.83
1249-----------------
1250
1251TF/01 Correctly close the server side of TLS when forking for delivery.
1252
1253 When a message was received over SMTP with TLS, Exim failed to clear up
1254 the incoming connection properly after forking off the child process to
1255 deliver the message. In some situations the subsequent outgoing
1256 delivery connection happened to have the same fd number as the incoming
1257 connection previously had. Exim would try to use TLS and fail, logging
1258 a "Bad file descriptor" error.
1259
7245734e
TF
1260TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1261 utilities have not been installed.
1262
fd5dad68
JH
1263JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1264 temporary space as the ACL may create new global variables.
1265
5428a946
TL
1266TL/01 LDAP support uses per connection or global context settings, depending
1267 upon the detected version of the libraries at build time.
1268
a3c86431
TL
1269TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1270 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1271 were a direct connection from the outside internet. PPv2 support was
1272 updated based on HAProxy spec change in May 2014.
a3c86431 1273
aa26e137
JH
1274JH/02 Add ${listextract {number}{list}{success}{fail}}.
1275
5a1b8443
WB
1276TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1277 Properly escape header and check for NULL return.
1278
72c9e342
PP
1279PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1280 not dns_use_dnssec.
1281
76f44207
WB
1282JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1283
770747fd
MFM
1284TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1285 characters in header names, implemented as a verify condition.
1286 Contributed by Michael Fischer v. Mollard.
1287
8ddef691 1288TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1289 results permerror and temperror. Previous values are deprecated but
1290 still accepted. In a future release, err_perm and err_temp will be
1291 completely removed, which will be a backward incompatibility if the
1292 ACL tests for either of these two old results. Patch contributed by
8ddef691 1293 user bes-internal on the mailing list.
c0e56233 1294
b9c2e32f
AR
1295JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1296
e45a1c37
JH
1297JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1298 selectors, in both main and reject logs.
1299
67d81c10
JH
1300JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1301 failed delivery.
1302
b1f8e4f8
JH
1303JH/07 Add malware type "sock" for talking to simple daemon.
1304
511a6c14 1305JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1306
1307JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1308 routers/transports under cutthrough routing.
214042d2 1309
51c7471d
JH
1310JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1311 numbers. Touch up "bool" conditional to keep the same definition.
1312
3695be34
TL
1313TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1314
1e06383a
TL
1315JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1316
76146973
JH
1317JH/12 Expand items in router/transport headers_add or headers_remove lists
1318 individually rather than the list as a whole. Bug 1452.
1319
1320 Required for reasonable handling of multiple headers_ options when
1321 they may be empty; requires that headers_remove items with embedded
1322 colons must have them doubled (or the list-separator changed).
1323
8c8b8274
TL
1324TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1325 view the policy declared in the DMARC record. Currently, $dmarc_status
1326 is a combined value of both the record presence and the result of the
1327 analysis.
b1f8e4f8 1328
35aba663
JH
1329JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1330
8c51eead 1331JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1332 dnslookup router and the smtp transport (applying to the forward
1333 lookup).
8c51eead 1334
deae092e
HS
1335TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1336 of ldap servers used for a specific lookup. Patch provided by Heiko
1337 Schlichting.
35aba663 1338
fd3b6a4a 1339JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1340 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1341
8d91c6dc
LT
1342TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1343 Patch submitted by Lars Timman.
1344
2b4a568d
JH
1345JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1346
d2af03f4
HS
1347TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1348 Requires trusted mode and valid format message id, aborts otherwise.
1349 Patch contributed by Heiko Schlichting.
1350
9d1c15ef
JH
1351JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1352 certextract with support for various fields. Bug 1358.
1353
44662487
JH
1354JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1355 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1356 hosts_request_ocsp.
1357
ed3bba5f 1358JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1359 operate on certificate variables to give certificate fingerprints
9ef9101c 1360 Also new ${sha256:cert_variable}.
44662487 1361
8ccd00b1
JH
1362JH/23 The PRDR feature is moved from being Experimental into the mainline.
1363
8ded8589
TL
1364TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1365 Christian Aistleitner.
1366
f2de3a33
JH
1367JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1368
6eb02f88
TL
1369TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1370 file. Patch from Wolfgang Breyha.
1371
00bff6f6
JH
1372JH/25 Expand the coverage of the delivery $host and $host_address to
1373 client authenticators run in verify callout. Bug 1476.
1374
071c51f7
JH
1375JH/26 Port service names are now accepted for tls_on_connect_ports, to
1376 align with daemon_smtp_ports. Bug 72.
1377
a6d4c44e
TF
1378TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1379 support and error reporting did not work properly.
1380
3ae173e7
ACK
1381TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1382 and is readable. Patch from Andrew Colin Kissa.
1383
c13d09b8
TL
1384TL/14 Enhance documentation of ${run expansion and how it parses the
1385 commandline after expansion, particularly in the case when an
1386 unquoted variable expansion results in an empty value.
1387
0df4ab80
JH
1388JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1389
66be95e0
PP
1390PP/02 Fix internal collision of T_APL on systems which support RFC3123
1391 by renaming away from it. Addresses GH issue 15, reported by
1392 Jasper Wallace.
1393
1bd0d12b
JH
1394JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1395
0de7239e
TL
1396TL/15 SECURITY: prevent double expansion in math comparison functions
1397 (can expand unsanitized data). Not remotely exploitable.
1398 CVE-2014-2972
1399
fd3b6a4a 1400
2c422e6f 1401Exim version 4.82
98a90c36
PP
1402-----------------
1403
1404PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1405
12f69989
PP
1406PP/02 Make -n do something, by making it not do something.
1407 When combined with -bP, the name of an option is not output.
1408
54c90be1
PP
1409PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1410 by GnuTLS.
1411
1f4a55da
PP
1412PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1413 $sender_host_name and config options to manage this, and basic check
1414 routines.
1415
13363eba 1416PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1417
66645890 1418PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1419 (Only plugin which currently uses this is kerberos4, which nobody should
1420 be using, but we should make it available and other future plugins might
1421 conceivably use it, even though it would break NAT; stuff *should* be
1422 using channel bindings instead).
66645890 1423
a3fb9793 1424PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1425 name; added for Sendmail compatibility; requires admin caller.
1426 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1427 just ignore it); requires trusted caller.
a3fb9793 1428 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1429 Bugzilla 1117.
a3fb9793 1430
d27f98fe 1431TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1432
6822b909
TL
1433TL/02 Add +smtp_confirmation as a default logging option.
1434
e7568d51
TL
1435TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1436 Patch by Magnus Holmgren from 2007-02-20.
1437
ae0e32ee 1438TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1439 Bugzilla 1283 - Spec typo.
97f42f10 1440 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1441
1442TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1443
e2658fff
TL
1444TL/06 Add Experimental DMARC support using libopendmarc libraries.
1445
83712b39
TL
1446TL/07 Fix an out of order global option causing a segfault. Reported to dev
1447 mailing list by by Dmitry Isaikin.
1448
976b7e9f
JH
1449JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1450
be4a1376
JH
1451JH/02 Support "G" suffix to numbers in ${if comparisons.
1452
ec4b68e5
PP
1453PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1454
d7148a07
NM
1455NM/01 Bugzilla 1197 - Spec typo
1456 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1457
585121e2 1458JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1459
2519e60d
TL
1460PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1461 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1462 function.
a5f239e4 1463
13d08c90
PP
1464PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1465 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1466
bef3ea7f
JH
1467JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1468 "acl {{name}{arg}...}", and optional args on acl condition
1469 "acl = name arg..."
a5f239e4 1470
846726c5
JH
1471JH/05 Permit multiple router/transport headers_add/remove lines.
1472
3a796370
JH
1473JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1474
ea722490 1475JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1476 Performance patch from Paul Fisher. Bugzilla 1262.
1477
b1b05573
JH
1478JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1479 Bugzilla 884.
1480
362145b5
JH
1481JH/09 Add $headers_added variable, with content from use of ACL modifier
1482 add_header (but not yet added to the message). Bugzilla 199.
1483
3c0a92dc
JH
1484JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1485 Pulled from Bugzilla 817 by Wolfgang Breyha.
1486
6d7c6175
PP
1487PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1488 CVE-2012-5671
e78e6ecf 1489 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1490
6f123593
JH
1491JH/11 Add A= logging on delivery lines, and a client_set_id option on
1492 authenticators.
1493
c8e2fc1e
JH
1494JH/12 Add optional authenticated_sender logging to A= and a log_selector
1495 for control.
1496
005ac57f
PP
1497PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1498
3f1df0e3
PP
1499PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1500 advertise SMTP AUTH mechanism to us, instead of a generic
1501 protocol violation error. Also, make Exim more robust to bad
1502 data from the Dovecot auth socket.
1503
67bd1ab3
TF
1504TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1505
1506 When a queue runner is handling a message, Exim first routes the
1507 recipient addresses, during which it prunes them based on the retry
1508 hints database. After that it attempts to deliver the message to
1509 any remaining recipients. It then updates the hints database using
1510 the retry rules.
1511
1512 So if a recipient address works intermittently, it can get repeatedly
1513 deferred at routing time. The retry hints record remains fresh so the
1514 address never reaches the final cutoff time.
1515
1516 This is a fairly common occurrence when a user is bumping up against
1517 their storage quota. Exim had some logic in its local delivery code
1518 to deal with this. However it did not apply to per-recipient defers
1519 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1520
1ddeb334
TF
1521 This change adds a proper retry rule check during routing so that the
1522 final cutoff time is checked against the message's age. We only do
1523 this check if there is an address retry record and there is not a
1524 domain retry record; this implies that previous attempts to handle
1525 the address had the retry_use_local_parts option turned on. We use
1526 this as an approximation for the destination being like a local
1527 delivery, as in LMTP.
67bd1ab3
TF
1528
1529 I suspect this new check makes the old local delivery cutoff check
1530 redundant, but I have not verified this so I left the code in place.
1531
326cdc37
TF
1532TF/02 Correct gecos expansion when From: is a prefix of the username.
1533
1534 Test 0254 submits a message to Exim with the header
1535
1536 Resent-From: f
1537
1538 When I ran the test suite under the user fanf2, Exim expanded
1539 the header to contain my full name, whereas it should have added
1540 a Resent-Sender: header. It erroneously treats any prefix of the
1541 username as equal to the username.
1542
1543 This change corrects that bug.
1544
f62514b3
GF
1545GF/01 DCC debug and logging tidyup
1546 Error conditions log to paniclog rather than rejectlog.
1547 Debug lines prefixed by "DCC: " to remove any ambiguity.
1548
eb505532
TF
1549TF/03 Avoid unnecessary rebuilds of lookup-related code.
1550
14c7b357
PP
1551PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1552 Bug spotted by Jeremy Harris; was flawed since initial commit.
1553 Would have resulted in OCSP responses post-SNI triggering an Exim
1554 NULL dereference and crash.
1555
94eaf700
PP
1556JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1557
6f5a440a
PP
1558PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1559 Bug detection, analysis and fix by Samuel Thibault.
1560 Bugzilla 1331, Debian bug #698092.
1561
514ee161
SC
1562SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1563
fd98a5c6
JH
1564JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1565 Server implementation by Todd Lyons, client by JH.
1566 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1567 config variable "prdr_enable" controls whether the server
1568 advertises the facility. If the client requests PRDR a new
1569 acl_data_smtp_prdr ACL is called once for each recipient, after
1570 the body content is received and before the acl_smtp_data ACL.
4c04137d 1571 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1572 on the smtp transport, and the server advertisement.
1573 Default client logging of deliveries and rejections involving
1574 PRDR are flagged with the string "PRDR".
1575
035c7f1e
PP
1576PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1577 fclose(). Diagnosis by Todd Lyons.
1578
ff284120
PP
1579PP/17 Update configure.default to handle IPv6 localhost better.
1580 Patch by Alain Williams (plus minor tweaks).
1581 Bugzilla 880.
1582
26e72755
PP
1583PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1584 This is now consistent with GnuTLS, and is now documented: the
1585 previous undocumented portable approach to treating the option as
1586 unset was to force an expansion failure. That still works, and
1587 an empty string is now equivalent.
1588
0fbd9bff
PP
1589PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1590 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1591 not performing validation itself.
1592
700d22f3
PP
1593PP/20 Added force_command boolean option to pipe transport.
1594 Patch from Nick Koston, of cPanel Inc.
1595
fcc8e047
JH
1596JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1597 Bugzilla 321, 823.
1598
4c04137d 1599TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1600
8c020188
PP
1601PP/21 Fix eximon continuous updating with timestamped log-files.
1602 Broken in a format-string cleanup in 4.80, missed when I repaired the
1603 other false fix of the same issue.
1604 Report and fix from Heiko Schlichting.
1605 Bugzilla 1363.
1606
d13cdd30
PP
1607PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1608 Report from Prashanth Katuri.
1609
e2fbf4a2
PP
1610PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1611 It's SecureTransport, so affects any MacOS clients which use the
1612 system-integrated TLS libraries, including email clients.
1613
f4c1088b
PP
1614PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1615 using a MIME ACL for non-SMTP local injection.
1616 Report and assistance in diagnosis by Warren Baker.
1617
c5c2182f
PP
1618TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1619
73431ca9
JH
1620JH/16 Fix comparisons for 64b. Bugzilla 1385.
1621
2d07a215
TL
1622TL/09 Add expansion variable $authenticated_fail_id to keep track of
1623 last id that failed so it may be referenced in subsequent ACL's.
1624
a30a8861
TL
1625TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1626 Alexander Miroch.
1627
33382dd9
TL
1628TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1629 ldap library initialization, allowing self-signed CA's to be
1630 used. Also properly sets require_cert option later in code by
1631 using NULL (global ldap config) instead of ldap handle (per
1632 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1633
046172e6
TL
1634TL/12 Enhanced documentation in the ratelimit.pl script provided in
1635 the src/util/ subdirectory.
1636
581d7bee 1637TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1638 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1639 EXPERIMENTAL_TPDA.
1640
1641TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1642 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1643 redis_servers = needs to be configured which will be used by the redis
1644 lookup. Patch from Warren Baker, of The Packet Hub.
1645
237b2cf2
TL
1646TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1647
9fc5a352
TL
1648TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1649 hostname or reverse DNS when processing a host list. Used suggestions
1650 from multiple comments on this bug.
1a7b746d 1651
b10e4ec2
TL
1652TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1653
e2cebd74
TL
1654TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1655 Missed a few lines, added it to make the runtest require no keyboard
1656 interaction.
1657
1658TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1659 contains upper case chars. Make router use caseful_local_part.
1660
2519e60d
TL
1661TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1662 support when GnuTLS has been built with p11-kit.
1663
e78e6ecf 1664
4263f395
PP
1665Exim version 4.80.1
1666-------------------
1667
1668PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1669 CVE-2012-5671
2c422e6f 1670 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1671
ea722490 1672
b1770b6e 1673Exim version 4.80
0599f9cf
PP
1674-----------------
1675
1676PP/01 Handle short writes when writing local log-files.
1677 In practice, only affects FreeBSD (8 onwards).
1678 Bugzilla 1053, with thanks to Dmitry Isaikin.
1679
23c7e742
NM
1680NM/01 Bugzilla 949 - Documentation tweak
1681
b322aac8
NM
1682NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1683 improved.
1684
4a891427
NM
1685NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1686
c1e794ba 1687PP/02 Implemented gsasl authenticator.
b322aac8 1688
97753960
PP
1689PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1690
1691PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1692 `pkg-config foo` for cflags/libs.
1693
df6303fa
PP
1694PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1695 with rest of GSASL and with heimdal_gssapi.
1696
7e6a8985
PP
1697PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1698 `pkg-config foo` for cflags/libs for the TLS implementation.
1699
f1e05cc7 1700PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1701 properties get this fed in as external SSF. A number of robustness
1702 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1703
4c287009
PP
1704PP/08 cyrus_sasl server now expands the server_realm option.
1705
b98bb9ac
PP
1706PP/09 Bugzilla 1214 - Log authentication information in reject log.
1707 Patch by Jeremy Harris.
1708
4a6a987a
PP
1709PP/10 Added dbmjz lookup type.
1710
c45dd180 1711PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1712
7db8d074
PP
1713PP/12 MAIL args handles TAB as well as SP, for better interop with
1714 non-compliant senders.
1715 Analysis and variant patch by Todd Lyons.
1716
eae0036b 1717NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1718 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1719 Patch from Dirk Mueller <dmueller@suse.com>
1720
dec5017e
PP
1721PP/13 tls_peerdn now print-escaped for spool files.
1722 Observed some $tls_peerdn in wild which contained \n, which resulted
1723 in spool file corruption.
1724
c80c5570
PP
1725PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1726 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1727 or write after TLS renegotiation, which otherwise led to messages
1728 "Got SSL error 2".
1729
076b11e2
PP
1730TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1731 as a tracking header (ie: a signed header comes before the signature).
1732 Patch from Wolfgang Breyha.
1733
5407bfff
JH
1734JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1735 comma-sep list; embedded commas doubled.
1736
9e45c72b
PP
1737JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1738
e74376d8
PP
1739PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1740 diagnostics.
1741 Report and patch from Dmitry Banschikov.
1742
4c04137d 1743PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1744 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1745 failures. We appear to now support TLS1.1+ with Exim.
1746
7be682ca
PP
1747PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1748 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1749 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1750 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1751
ef840681
PP
1752PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1753 NULL dereference. Report and patch from Alun Jones.
1754
5bfb4cdf
PP
1755PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1756 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1757 Not seeing resolver debug output on NetBSD, but suspect this is a
1758 resolver implementation change.
1759
c6e95d22
PP
1760PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1761 Left warnings. Added "eximon gdb" invocation mode.
1762
9cbad13b
PP
1763PP/21 Defaulting "accept_8bitmime" to true, not false.
1764
9ee44efb
PP
1765PP/22 Added -bw for inetd wait mode support.
1766
6a6084f8
PP
1767PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1768 locate the relevant includes and libraries. Made this the default.
1769
12dd53c7
PP
1770PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1771 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1772
9e45c72b 1773JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1774 This may cause build issues on older platforms.
1775
17c76198
PP
1776PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1777 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1778 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1779 Added SNI support via GnuTLS too.
af3498d6 1780 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1781
53947857 1782PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1783
eae0036b 1784PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1785 Applied second patch from Janne, implementing suggestion to default
1786 multiple-strings-in-record handling to match SPF spec.
eae0036b 1787
9e45c72b 1788JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1789
7390e768
PP
1790PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1791 read-only, out of scope).
1792 Patch from Wolfgang Breyha, report from Stuart Northfield.
1793
08488c86
PP
1794PP/29 Fix three issues highlighted by clang analyser static analysis.
1795 Only crash-plausible issue would require the Cambridge-specific
1796 iplookup router and a misconfiguration.
1797 Report from Marcin Mirosław.
1798
6475bd82
PP
1799PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1800
81f91683
PP
1801PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1802 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1803 As part of this, removing so much warning spew let me fix some minor
1804 real issues in debug logging.
1805
5779e6aa
PP
1806PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1807 assignment on my part. Fixed.
1808
3375e053
PP
1809PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1810 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1811 Janne Snabb (who went above and beyond: thank you).
1812
1813PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1814 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1815 relatively easy to get wrong. Should also expose TLS library linkage
1816 problems.
3375e053 1817
9d26b8c0
PP
1818PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1819 64-bit ${eval} (JH/03).
1820
57eb9e91 1821PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1822 GNU libc to support some of the 64-bit stuff, should not lead to
1823 conflicts. Defined before os.h is pulled in, so if a given platform
1824 needs to override this, it can.
1825
16880d1a
PP
1826PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1827 protection layer was required, which is not implemented.
1828 Bugzilla 1254, patch from Wolfgang Breyha.
1829
a799883d
PP
1830PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1831 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1832 tls_dhparam take prime identifiers. Also unbreak combination of
1833 OpenSSL+DH_params+TLSSNI.
1834
3ecab157 1835PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1836
0599f9cf 1837
867fcbf5
PP
1838Exim version 4.77
1839-----------------
1840
1841PP/01 Solaris build fix for Oracle's LDAP libraries.
1842 Bugzilla 1109, patch from Stephen Usher.
1843
f1a29782
TF
1844TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1845
ab42bd23
TK
1846TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1847 whitespace trailer
867fcbf5 1848
0ca0cf52
TF
1849TF/02 Fix a couple more cases where we did not log the error message
1850 when unlink() failed. See also change 4.74-TF/03.
1851
921b12ca
TF
1852TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1853 lock up or crash if it happened to be inside a call to libc when it
1854 got a SIGUSR1 from exiwhat.
1855
1856 The SIGUSR1 handler appends the current process status to the process
1857 log which is later printed by exiwhat. It used to use the general
1858 purpose logging code to do this, but several functions it calls are
1859 not safe for signals.
1860
1861 The new output code in the SIGUSR1 handler is specific to the process
1862 log, and simple enough that it's easy to inspect for signal safety.
1863 Removing some special cases also simplifies the general logging code.
1864 Removing the spurious timestamps from the process log simplifies
1865 exiwhat.
1866
c99ce5c9
TF
1867TF/04 Improved ratelimit ACL condition.
1868
1869 The /noupdate option has been deprecated in favour of /readonly which
1870 has clearer semantics. The /leaky, /strict, and /readonly update modes
1871 are mutually exclusive. The update mode is no longer included in the
1872 database key; it just determines when the database is updated. (This
4c04137d 1873 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1874
1875 Exim now checks that the per_* options are used with an update mode that
1876 makes sense for the current ACL. For example, when Exim is processing a
1877 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1878 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1879 must specify per_mail/readonly. If you omit the update mode it defaults to
1880 /leaky where that makes sense (as before) or /readonly where required.
1881
1882 The /noupdate option is now undocumented but still supported for
1883 backwards compatibility. It is equivalent to /readonly except that in
1884 ACLs where /readonly is required you may specify /leaky/noupdate or
1885 /strict/noupdate which are treated the same as /readonly.
1886
1887 A useful new feature is the /count= option. This is a generalization
1888 of the per_byte option, so that you can measure the throughput of other
1889 aggregate values. For example, the per_byte option is now equivalent
1890 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1891
1892 The per_rcpt option has been generalized using the /count= mechanism
1893 (though it's more complicated than the per_byte equivalence). When it is
1894 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1895 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1896 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1897 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1898 Note that using per_rcpt with a non-readonly update mode in more than
1899 one ACL will cause the recipients to be double-counted. (The per_mail
1900 and per_byte options don't have this problem.)
1901
1902 The handling of very low rates has changed slightly. If the computed rate
1903 is less than the event's count (usually one) then this event is the first
1904 after a long gap. In this case the rate is set to the same as this event's
1905 count, so that the first message of a spam run is counted properly.
1906
1907 The major new feature is a mechanism for counting the rate of unique
1908 events. The new per_addr option counts the number of different
1909 recipients that someone has sent messages to in the last time period. It
1910 behaves like per_rcpt if all the recipient addresses are different, but
1911 duplicate recipient addresses do not increase the measured rate. Like
1912 the /count= option this is a general mechanism, so the per_addr option
1913 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1914 example, measure the rate that a client uses different sender addresses
1915 with the options per_mail/unique=$sender_address. There are further
1916 details in the main documentation.
1917
3634fc25
TF
1918TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1919
792e8a19
TF
1920TF/06 Removed a few PCRE remnants.
1921
5901f0ab
TF
1922TF/07 Automatically extract Exim's version number from tags in the git
1923 repository when doing development or release builds.
1924
7f2a2a43
PP
1925PP/02 Raise smtp_cmd_buffer_size to 16kB.
1926 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1927
061b7ebd
PP
1928PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1929 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1930 Bugzilla 97.
1931
e12f8c32
PP
1932PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1933
9e949f00 1934PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1935 Bugzilla 1078. Patch from John Horne.
1936
1937PP/06 Stop make process more reliably on build failure.
1938 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1939
555ae6af 1940PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1941 Bugzilla 1089. Patch from Heiko Schlittermann.
1942
1943PP/08 Handle ${run} returning more data than OS pipe buffer size.
1944 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1945
6f7fe114
PP
1946PP/09 Handle IPv6 addresses with SPF.
1947 Bugzilla 860. Patch from Wolfgang Breyha.
1948
c566dd90
PP
1949PP/10 GnuTLS: support TLS 1.2 & 1.1.
1950 Bugzilla 1156.
89f897c3
PP
1951 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1952 Bugzilla 1095.
c566dd90 1953
d6cc7c78 1954PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1955 New compile-time build option, EXPAND_LISTMATCH_RHS.
1956 New expansion conditions, "inlist", "inlisti".
1957
0d0e4455
PP
1958PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1959
3399bb60 1960PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1961
1962PP/14 fix log_write() format string regression from TF/03.
1963 Bugzilla 1152. Patch from Dmitry Isaikin.
1964
0ca0cf52 1965
10906672
PP
1966Exim version 4.76
1967-----------------
1968
1969PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1970
754a0503
PP
1971PP/02 Harmonised TLS library version reporting; only show if debugging.
1972 Layout now matches that introduced for other libraries in 4.74 PP/03.
1973
c0c7b2da
PP
1974PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1975
e97d1f08
PP
1976PP/04 New "dns_use_edns0" global option.
1977
084c1d8c
PP
1978PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1979 Bugzilla 1098.
1980
4e7ee012
PP
1981PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1982 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1983
c8d52a00
PP
1984TK/01 Updated PolarSSL code to 0.14.2.
1985 Bugzilla 1097. Patch from Andreas Metzler.
1986
54e7ce4a
PP
1987PP/07 Catch divide-by-zero in ${eval:...}.
1988 Fixes bugzilla 1102.
1989
5ee6f336
PP
1990PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1991 Bugzilla 1104.
1992
c8d52a00 1993TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1994 format-string attack -- SECURITY: remote arbitrary code execution.
1995
1996TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1997 time unintentionally subject to list matching rules, letting the header
1998 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1999 arbitrary string expansion). This allowed for information disclosure.
2000
2001PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2002 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2003
10906672 2004
aa097c4c
NM
2005Exim version 4.75
2006-----------------
2007
4c04137d 2008NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2009 Bugzilla 1073
2010
7f3d9eff
TF
2011TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2012 This fixes portability to compilers other than gcc, notably
2013 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2014
159f52d2
TF
2015TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2016 makefiles for portability to HP-UX and POSIX correctness.
2017
0cc9542a
PP
2018PP/01 Permit LOOKUP_foo enabling on the make command-line.
2019 Also via indented variable definition in the Makefile.
2020 (Debugging by Oliver Heesakkers).
2021
f7274286
PP
2022PP/02 Restore caching of spamd results with expanded spamd_address.
2023 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2024
7b797365
PP
2025PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2026 Improves build reliability. Fix from: Frank Elsner
2027
caacae52
NM
2028NM/02 Fix wide character breakage in the rfc2047 coding
2029 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2030
09dcaba9
NM
2031NM/03 Allow underscore in dnslist lookups
2032 Fixes bug 1026. Patch from Graeme Fowler
2033
bc19a55b
PP
2034PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2035 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2036
bd4c9759
NM
2037NM/04 Fixed exiqgrep to cope with mailq missing size issue
2038 Fixes bug 943.
2039
b72aab72
PP
2040PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2041 is logged, to avoid truncation. Patch from John Horne.
2042
2fe76745
PP
2043PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2044 Patch from Jakob Hirsch.
2045
76aa570c
PP
2046PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2047 SQL string expansion failure details.
2048 Patch from Andrey Oktyabrski.
2049
f1e5fef5
PP
2050PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2051 Patch from Simon Arlott.
2052
4d805ee9
PP
2053PP/09 New lookups functionality failed to compile on old gcc which rejects
2054 extern declarations in function scope.
2055 Patch from Oliver Fleischmann
2056
cd59ab18
PP
2057PP/10 Use sig_atomic_t for flags set from signal handlers.
2058 Check getgroups() return and improve debugging.
2059 Fixed developed for diagnosis in bug 927 (which turned out to be
2060 a kernel bug).
2061
332f5cf3
PP
2062PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2063 Patch from Mark Zealey.
2064
29cfeb94
PP
2065PP/12 Bugzilla 1056: Improved spamd server selection.
2066 Patch from Mark Zealey.
2067
660242ad
PP
2068PP/13 Bugzilla 1086: Deal with maildir quota file races.
2069 Based on patch from Heiko Schlittermann.
2070
bc4bc4c5
PP
2071PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2072 Patch from Uwe Doering, sign-off by Michael Haardt.
2073
2e64baa9
NM
2074NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2075 variable declaration deep within a block. Bug and patch from
2076 Dennis Davis.
2077
4c04137d 2078PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2079
6bac1a9a
PP
2080PP/16 Make DISABLE_DKIM build knob functional.
2081
552193f0
NM
2082NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2083 Patch by Simon Arlott
baeee2c1 2084
1b587e48
TF
2085TF/03 Fix valgrind.h portability to C89 compilers that do not support
2086 variable argument macros. Our copy now differs from upstream.
2087
aa097c4c 2088
8c07b69f
TF
2089Exim version 4.74
2090-----------------
2091
2092TF/01 Failure to get a lock on a hints database can have serious
2093 consequences so log it to the panic log.
2094
c0ea85ab
TF
2095TF/02 Log LMTP confirmation messages in the same way as SMTP,
2096 controlled using the smtp_confirmation log selector.
2097
0761d44e
TF
2098TF/03 Include the error message when we fail to unlink a spool file.
2099
0a349494
PP
2100DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2101 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2102 for maintaining out-of-tree patches for some time.
2103
2104PP/01 Bugzilla 139: Documentation and portability issues.
2105 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2106 Handle per-OS dynamic-module compilation flags.
2107
fea24b2e
PP
2108PP/02 Let /dev/null have normal permissions.
2109 The 4.73 fixes were a little too stringent and complained about the
2110 permissions on /dev/null. Exempt it from some checks.
2111 Reported by Andreas M. Kirchwitz.
2112
6545de78
PP
2113PP/03 Report version information for many libraries, including
2114 Exim version information for dynamically loaded libraries. Created
2115 version.h, now support a version extension string for distributors
2116 who patch heavily. Dynamic module ABI change.
2117
1670ef10
PP
2118PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2119 privilege escalation vulnerability whereby the Exim run-time user
2120 can cause root to append content of the attacker's choosing to
2121 arbitrary files.
2122
c0886197
PP
2123PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2124 (Wolfgang Breyha)
2125
b7487bce
PP
2126PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2127 If dropping privileges for untrusted macros, we disabled normal logging
2128 on the basis that it would fail; for the Exim run-time user, this is not
2129 the case, and it resulted in successful deliveries going unlogged.
2130 Fixed. Reported by Andreas Metzler.
2131
8c07b69f 2132
97fd1e48 2133Exim version 4.73
ed7f7860 2134-----------------
97fd1e48
PP
2135
2136PP/01 Date: & Message-Id: revert to normally being appended to a message,
2137 only prepend for the Resent-* case. Fixes regression introduced in
2138 Exim 4.70 by NM/22 for Bugzilla 607.
2139
6901c596
PP
2140PP/02 Include check_rfc2047_length in configure.default because we're seeing
2141 increasing numbers of administrators be bitten by this.
2142
a8c8d6b5
JJ
2143JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2144
77bb000f
PP
2145PP/03 Bugzilla 994: added openssl_options main configuration option.
2146
a29e5231
PP
2147PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2148
ec5a0394 2149PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2150
55c75993
PP
2151PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2152
453a6645 2153PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2154 without a peer certificate, leading to a segfault because of an
2155 assumption that peers always have certificates. Be a little more
453a6645
PP
2156 paranoid. Problem reported by Martin Tscholak.
2157
8544e77a
PP
2158PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2159 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2160 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2161 CL also introduces -bmalware, various -d+acl logging additions and
2162 more caution in buffer sizes.
8544e77a 2163
83e029d5
PP
2164PP/09 Implemented reverse_ip expansion operator.
2165
ed7f7860
PP
2166PP/10 Bugzilla 937: provide a "debug" ACL control.
2167
7d9f747b
PP
2168PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2169
4b2241d2
PP
2170PP/12 Bugzilla 973: Implement --version.
2171
10385c15
PP
2172PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2173
dbc4b90d
PP
2174PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2175
532be449
PP
2176PP/15 Bugzilla 816: support multiple condition rules on Routers.
2177
6a8de854 2178PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2179 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2180 ignore trailing whitespace.
6a8de854 2181
5dc43717
JJ
2182JJ/02 prevent non-panic DKIM error from being sent to paniclog
2183
2184JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2185 "exim" to be used
55c75993 2186
3346ab01
PP
2187PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2188 Notification from Dr Andrew Aitchison.
2189
491fab4c
PP
2190PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2191 ExtendedDetectionInfo response format.
2192 Notification from John Horne.
2193
13eb9497
PP
2194PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2195 compatible.
2196
2197PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2198 XSL and documented dependency on system catalogs, with examples of how
2199 it normally works.
2200
7f36d675
DW
2201DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2202 access.
2203
c1d94452
DW
2204DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2205 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2206 configuration file which is writeable by the Exim user or group.
2207
e2f5dc15
DW
2208DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2209 of configuration files to cover files specified with the -C option if
2210 they are going to be used with root privileges, not just the default
2211 configuration file.
2212
cd25e41d
DW
2213DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2214 option (effectively making it always true).
2215
261dc43e
DW
2216DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2217 files to be used while preserving root privileges.
2218
fa32850b
DW
2219DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2220 that rogue child processes cannot use them.
2221
79d4bc3d
PP
2222PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2223 run-time user, instead of root.
2224
43236f35 2225PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2226 Exim run-time user without dropping privileges.
2227
fb08281f
DW
2228DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2229 result string, instead of calling string_vformat() twice with the same
2230 arguments.
3346ab01 2231
74935b98
DW
2232DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2233 for other users. Others should always drop root privileges if they use
2234 -C on the command line, even for a whitelisted configure file.
2235
90b6341f
DW
2236DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2237
57730b52
ML
2238NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2239
66581d1e 2240
465e92cf
JJ
2241Exim version 4.72
2242-----------------
2243
453a6645
PP
2244JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2245 $data_path, and $header_path variables; fixed documentation bugs and
2246 typos
465e92cf 2247
453a6645
PP
2248JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2249 exipick to access non-standard spools, including the "frozen" queue
2250 (Finput)
edae0343 2251
9bd3e22c
NM
2252NM/01 Bugzilla 965: Support mysql stored procedures.
2253 Patch from Alain Williams
2254
bb576ff7
NM
2255NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2256
5a1a5845
NM
2257NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2258 Patch from Andreas Metzler
2259
981a9fad
NM
2260NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2261 Patch from Kirill Miazine
2262
7fc497ee
NM
2263NM/05 Bugzilla 671: Added umask to procmail example.
2264
1a41defa
JJ
2265JJ/03 installed exipick 20100323.0, fixing doc bug
2266
a466095c 2267NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2268 directory. Notification and patch from Dan Rosenberg.
a466095c 2269
94a6bd0b
NM
2270TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2271
2272TK/02 Improve log output when DKIM signing operation fails.
2273
2274MH/01 Treat the transport option dkim_domain as a colon separated
2275 list, not as a single string, and sign the message with each element,
2276 omitting multiple occurences of the same signer.
2277
c1b141a8
NM
2278NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2279 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2280
b26eacf1 2281NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2282 Patch by Simon Arlott
2283
179c5980 2284PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2285 MBX locking. Notification from Dan Rosenberg.
179c5980 2286
9bd3e22c 2287
7c6d71af
NM
2288Exim version 4.71
2289-----------------
2290
7d9f747b 2291TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2292
f013fb92
NM
2293NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2294
0eb8eedd
NM
2295NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2296
663ee6d9
NM
2297NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2298
177ebd9b
NM
2299NM/04 Bugzilla 915: Flag broken perl installation during build.
2300
7c6d71af 2301
210f147e
NM
2302Exim version 4.70
2303-----------------
2304
cdd3bb85 2305TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2306 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2307
2308TK/02 Write list of recipients to X-Envelope-Sender header when building
2309 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2310 Hirsch).
cdd3bb85
TK
2311
2312TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2313 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2314 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2315
2316TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2317 by Mark Daniel Reidel <mr@df.eu>.
2318
210f147e
NM
2319NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2320 When building exim an external PCRE library is now needed -
2321 PCRE is a system library on the majority of modern systems.
2322 See entry on PCRE_LIBS in EDITME file.
2323
deafd5b3
NM
2324NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2325 conversation. Added nologin parameter to request.
7d9f747b 2326 Patch contributed by Kirill Miazine.
deafd5b3 2327
089793a4
TF
2328TF/01 Do not log submission mode rewrites if they do not change the address.
2329
5f16ca82
TF
2330TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2331
dae9d94e 2332NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2333 log files in place. Contributed by Roberto Lima.
dae9d94e 2334
7d9f747b 2335NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2336
06864c44
TF
2337TF/03 Bugzilla 615: When checking the local_parts router precondition
2338 after a local_part_suffix or local_part_prefix option, Exim now
2339 does not use the address's named list lookup cache, since this
2340 contains cached lookups for the whole local part.
2341
65a7d8c3 2342NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2343 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2344
23510047 2345TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2346
7d9f747b 2347NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2348
7d8eec3a 2349NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2350 Patch provided by Jan Srzednicki.
6c588e74 2351
89dec7b6
TF
2352TF/05 Leading white space used to be stripped from $spam_report which
2353 wrecked the formatting. Now it is preserved.
5f28a6e8 2354
a99de90c
TF
2355TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2356 that they are available at delivery time.
2357
e2803e40
TF
2358TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2359
7199e1ee
TF
2360TF/08 TLS error reporting now respects the incoming_interface and
2361 incoming_port log selectors.
2362
e276e04b
TF
2363TF/09 Produce a more useful error message if an SMTP transport's hosts
2364 setting expands to an empty string.
2365
ce552449 2366NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2367 Patch provided by Phil Pennock.
ce552449 2368
e765a0f1 2369NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2370 Patch provided by Richard Godbee.
e765a0f1 2371
4f054c63 2372NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2373 acl_smtp_notquit, added index entry.
4f054c63 2374
7d9f747b
PP
2375NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2376 Patch provided by Eugene Bujak.
24c929a2 2377
7d9f747b
PP
2378NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2379 accept(). Patch provided by Maxim Dounin.
cf73943b 2380
b52bc06e 2381NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2382 Patch provided by Phil Pennock.
b52bc06e 2383
447de4b0
NM
2384NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2385
4c69d561 2386NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2387 Patch provided by Brad "anomie" Jorsch.
4c69d561 2388
d5c39246 2389NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2390 Patch provided by Dean Brooks.
9b989985 2391
0b23848a
TK
2392TK/05 Add native DKIM support (does not depend on external libraries).
2393
8f3414a1 2394NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2395 Patch provided by Graeme Fowler.
e2aacdfd 2396
fb6f955d
NM
2397NM/16 Bugzilla 851: Documentation example syntax fix.
2398
2399NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2400
7d9f747b
PP
2401NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2402 lsearch.
dbb0bf41 2403
7d9f747b
PP
2404NM/19 Bugzilla 745: TLS version reporting.
2405 Patch provided by Phil Pennock.
f3766eb5 2406
7d9f747b
PP
2407NM/20 Bugzilla 167: bool: condition support.
2408 Patch provided by Phil Pennock.
36f12725 2409
7d9f747b
PP
2410NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2411 clients. Patch provided by Phil Pennock.
e6060e2c 2412
7d9f747b
PP
2413NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2414 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2415
7d9f747b
PP
2416NM/23 Bugzilla 687: Fix misparses in eximstats.
2417 Patch provided by Heiko Schlittermann.
d5c13d66 2418
7d9f747b
PP
2419NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2420 Patch provided by Heiko Schlittermann.
b2335c0b 2421
7d9f747b 2422NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2423 plus update to original patch.
f4cd9433 2424
7d9f747b 2425NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2426
7d9f747b
PP
2427NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2428 Patch provided by David Brownlee.
8dc71ab3 2429
7d9f747b 2430NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2431
7d9f747b 2432NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2433
7d9f747b 2434NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2435
7d9f747b 2436NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2437
17792b53 2438NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2439 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2440
7d9f747b
PP
2441NM/33 Bugzilla 898: Transport filter timeout fix.
2442 Patch by Todd Rinaldo.
52383f8f 2443
91576cec 2444NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2445 Patch by Serge Demonchaux.
5ca6d115 2446
7d9f747b
PP
2447NM/35 Bugzilla 39: Base64 decode bug fixes.
2448 Patch by Jakob Hirsch.
baee9eee 2449
7d9f747b 2450NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2451
7d9f747b 2452NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2453
7d9f747b 2454NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2455
7d9f747b 2456NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2457
deafd5b3 2458
47db1125
NM
2459Exim version 4.69
2460-----------------
2461
4b3504d0
TK
2462TK/01 Add preliminary DKIM support. Currently requires a forked version of
2463 ALT-N's libdkim that I have put here:
2464 http://duncanthrax.net/exim-experimental/
2465
2466 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2467 were called 'true' and it seems that C99 defines that as a reserved
2468 keyword to be used with 'bool' variable types. That means you could
2469 not include C99-style headers which use bools without triggering
2470 build errors in sieve.c.
2471
81ea09ca
NM
2472NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2473 as mailq or other aliases. Changed the --help handling significantly
2474 to do whats expected. exim_usage() emits usage/help information.
2475
f13cddcb
SC
2476SC/01 Added the -bylocaldomain option to eximstats.
2477
7d9f747b 2478NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2479
7d9f747b 2480NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2481
7d9f747b 2482NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2483
2484
eb4c0de6
PH
2485Exim version 4.68
2486-----------------
2487
2488PH/01 Another patch from the Sieve maintainer.
2489
6a3bceb1
PH
2490PH/02 When an IPv6 address is converted to a string for single-key lookup
2491 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2492 dots are used instead of colons so that keys in lsearch files need not
2493 contain colons. This was done some time before quoting was made available
2494 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2495 (notated using the quote facility) so as to distinguish them from IPv4
2496 keys. This meant that lookups for IP addresses in host lists did not work
2497 for iplsearch lookups.
2498
2499 This has been fixed by arranging for IPv6 addresses to be expressed with
2500 colons if the lookup type is iplsearch. This is not incompatible, because
2501 previously such lookups could never work.
2502
4c04137d 2503 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2504 ordinary lsearch keys. However, making the change in all cases is
2505 incompatible and would probably break a number of configurations.
2506
2e30fa9d
TK
2507TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2508 version.
2509
0806a9c5
MH
2510MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2511 conversion specification without a maximum field width, thereby enabling
2512 a rogue spamd server to cause a buffer overflow. While nobody in their
2513 right mind would setup Exim to query an untrusted spamd server, an
2514 attacker that gains access to a server running spamd could potentially
2515 exploit this vulnerability to run arbitrary code as the Exim user.
2516
ae276964
TK
2517TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2518 $primary_hostname instead of what libspf2 thinks the hosts name is.
2519
0f2cbd1b
MH
2520MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2521 a directory entry by the name of the lookup key. Previously, if a
2522 symlink pointed to a non-existing file or a file in a directory that
2523 Exim lacked permissions to read, a lookup for a key matching that
2524 symlink would fail. Now it is enough that a matching directory entry
2525 exists, symlink or not. (Bugzilla 503.)
2526
2b85bce7
PH
2527PH/03 The body_linecount and body_zerocount variables are now exported in the
2528 local_scan API.
2529
93655c46
PH
2530PH/04 Added the $dnslist_matched variable.
2531
6c512171
PH
2532PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2533 This means they are set thereafter only if the connection becomes
2534 encrypted.
2535
2536PH/06 Added the client_condition to authenticators so that some can be skipped
2537 by clients under certain conditions.
2538
aa6dc513
PH
2539PH/07 The error message for a badly-placed control=no_multiline_responses left
2540 "_responses" off the end of the name.
2541
a96603a0
PH
2542PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2543
8f240103
PH
2544PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2545 (without spaces) instead of just copying the configuration text.
2546
2547PH/10 Added the /noupdate option to the ratelimit ACL condition.
2548
d677b2f2
PH
2549PH/11 Added $max_received_linelength.
2550
d52120f2
PH
2551PH/12 Added +ignore_defer and +include_defer to host lists.
2552
64f2600a
PH
2553PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2554 way in which PCRE > 7.0 is built.
2555
8669f003
PH
2556PH/14 Implemented queue_only_load_latch.
2557
a4dc33a8
PH
2558PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2559 MAIL command. The effect was to mangle the value on 64-bit systems.
2560
d6a60c0f
PH
2561PH/16 Another patch from the Sieve maintainer.
2562
8f128379
PH
2563PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2564
8932dffe
PH
2565PH/18 If a system quota error occurred while trying to create the file for
2566 a maildir delivery, the message "Mailbox is full" was not appended to the
2567 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2568 only to a quota excession during the actual writing of the file.
d6a60c0f 2569
ddea74fa 2570PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2571 characters?) which causes problems in log lines. The DN values are now
2572 passed through string_printing() before being added to log lines.
2573
ddea74fa 2574PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2575 and InterBase are left for another time.)
2576
ddea74fa
PH
2577PH/21 Added message_body_newlines option.
2578
ce9f225c
PH
2579PH/22 Guard against possible overflow in moan_check_errorcopy().
2580
19897d52
PH
2581PH/23 POSIX allows open() to be a macro; guard against that.
2582
bc64a74d
PH
2583PH/24 If the recipient of an error message contained an @ in the local part
2584 (suitably quoted, of course), incorrect values were put in $domain and
2585 $local_part during the evaluation of errors_copy.
2586
eb4c0de6 2587
b4ed4da0
PH
2588Exim version 4.67
2589-----------------
2590
22ad45c9
MH
2591MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2592 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2593 Jan Srzednicki.
2594
b4ed4da0
PH
2595PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2596 issue a MAIL command.
2597
431b7361
PH
2598PH/02 In an ACL statement such as
2599
2600 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2601
2602 if a client was not listed at all, or was listed with a value other than
2603 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2604 the condition was not true (as it should be), so access was not denied.
2605 The bug was that the ! inversion was incorrectly passed on to the second
2606 item. This has been fixed.
2607
2608PH/03 Added additional dnslists conditions == and =& which are different from
2609 = and & when the dns lookup returns more than one IP address.
2610
83da1223
PH
2611PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2612 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2613
54fc8428
PH
2614PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2615 FSYNC, which compiles an option called disable_fsync that allows for
2616 bypassing fsync(). The documentation is heavily laced with warnings.
2617
34c5e8dd
SC
2618SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2619
bbe15da8
PH
2620PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2621 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2622 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2623 including adding "make clean"; (3) Added -fPIC when compiling the test
2624 dynamically loaded module, to get rid of a warning.
2625
0e8a9471
MH
2626MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2627 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2628 = 0s. The bug is otherwise harmless.
2629
f0872424
PH
2630PH/07 There was a bug in the dovecot authenticator such that the value of
2631 $auth1 could be overwritten, and so not correctly preserved, after a
2632 successful authentication. This usually meant that the value preserved by
2633 the server_setid option was incorrect.
2634
b01dd148
PH
2635PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2636
6bf342e1
PH
2637PH/09 Installed PCRE release 7.0.
2638
273f34d0
PH
2639PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2640 run for batched SMTP input. It is now run at the start of every message
2641 in the batch. While fixing this I discovered that the process information
2642 (output by running exiwhat) was not always getting set for -bs and -bS
2643 input. This is fixed, and it now also says "batched" for BSMTP.
2644
cf8b11a5
PH
2645PH/11 Added control=no_pipelining.
2646
41c7c167
PH
2647PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2648 patch, slightly modified), and move the expansion of helo_data till after
2649 the connection is made in the smtp transport (so it can use these
2650 values).
2651
9c57cbc0
PH
2652PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2653
f3f065bb
PH
2654PH/14 Added log_selector = +pid.
2655
047bdd8c
PH
2656PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2657
0ce9abe6
PH
2658PH/16 Add ${if forany and ${if forall.
2659
0e22dfd1
PH
2660PH/17 Added dsn_from option to vary the From: line in DSNs.
2661
4c590bd1
PH
2662PH/18 Flush SMTP output before performing a callout, unless control =
2663 no_callout_flush is set.
2664
09945f1e
PH
2665PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2666 was true (the default) a successful delivery failed to delete the retry
2667 item, thus causing premature timeout of the address. The bug is now
2668 fixed.
2669
c51b8e75
PH
2670PH/20 Added hosts_avoid_pipelining to the smtp transport.
2671
e28326d8 2672PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2673 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2674 other ACL rejections are.
2675
75b1493f
PH
2676PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2677 with slight modification.
2678
7c5214ec
PH
2679PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2680 draft, changing the syntax and factoring some duplicate code".
2681
4311097e
PH
2682PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2683 for deliveries of the second and subsequent messages over the same SMTP
2684 connection.
2685
29f89cad
PH
2686PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2687 ${reduce, with only minor "tidies".
2688
5e687460
SC
2689SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2690
c3611384
PH
2691PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2692 expansion side effects.
2693
5a11a7b4
PH
2694PH/27 When a message times out after an over-quota error from an Exim-imposed
2695 quota, the bounce message says "mailbox is full". This message was not
2696 being given when it was a system quota that was exceeded. It now should
2697 be the same.
2698
0e20aff9
MH
2699MH/03 Made $recipients available in local_scan(). local_scan() already has
2700 better access to the recipient list through recipients_list[], but
2701 $recipients can be useful in postmaster-provided expansion strings.
2702
ca86f471
PH
2703PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2704 in the case of a MAIL command with additional options following the
2705 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2706 were accidentally chopped off.
2707
a14e5636
PH
2708PH/29 SMTP synchronization checks are implemented when a command is read -
2709 there is a check that no more input is waiting when there shouldn't be
2710 any. However, for some commands, a delay in an ACL can mean that it is
2711 some time before the response is written. In this time, more input might
2712 arrive, invalidly. So now there are extra checks after an ACL has run for
2713 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2714 pipelining has not been advertised.
2715
ec95d1a6
PH
2716PH/30 MH's patch to allow iscntrl() characters to be list separators.
2717
42855d71
PH
2718PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2719 returned in the SMTP response when smtp_return_error_details was false.
2720 This has been fixed.
2721
57c2c631
PH
2722PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2723 instead of the C I/O that was originally supplied, because problems were
2724 reported on Solaris.
2725
58c01c94
PH
2726PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2727 Exim which did not show up earlier: it was assuming that a call to
2728 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2729 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2730 was a macro that became an assignment, so it seemed to work. This has
2731 changed to a proper function call with a void return, hence the compile
2732 error. Exim's code has been fixed.
2733
dee5a20a
PH
2734PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2735 cpus.
2736
d2ee6114
PH
2737PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2738
b2d5182b
PH
2739PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2740
79749a79
PH
2741PH/37 If a message is not accepted after it has had an id assigned (e.g.
2742 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2743 "Completed" line in the log. When some messages of this type were
2744 selected by exigrep, they were listed as "not completed". Others were
2745 picked up by some special patterns. I have improved the selection
2746 criteria to be more general.
79749a79 2747
c456d9bb
PH
2748PH/38 The host_find_failed option in the manualroute router can now be set
2749 to "ignore", to completely ignore a host whose IP address cannot be
2750 found. If all hosts are ignored, the behaviour is controlled by the new
2751 host_all_ignored option.
2752
cd9868ec
PH
2753PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2754 homing or because of multiple MX records with /mx) generated more than
2755 one IP address, and the following item turned out to be the local host,
2756 all the secondary addresses of the first item were incorrectly removed
2757 from the list, along with the local host and any following hosts (which
2758 is what is supposed to happen).
2759
ebeaf996
PH
2760PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2761 whoever called Exim into the -H file. In the case of the daemon it was
2762 behaving confusingly. When first started, it used values for whoever
2763 started the daemon, but after a SIGHUP it used the Exim user (because it
2764 calls itself on a restart). I have changed the code so that it now always
2765 uses the Exim user.
2766
2679d413
PH
2767PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2768 message are rejected with the same error (e.g. no authentication or bad
2769 sender address), and a DATA command is nevertheless sent (as can happen
2770 with PIPELINING or a stupid MUA), the error message that was given to the
2771 RCPT commands is included in the rejection of the DATA command. This is
2772 intended to be helpful for MUAs that show only the final error to their
2773 users.
2774
84024b72
PH
2775PH/42 Another patch from the Sieve maintainer.
2776
8005d38e
SC
2777SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2778 Eximstats - Fixed some broken HTML links and added missing column headers
2779 (Jez Hancock).
2780 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2781 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2782
3298c6c6
SC
2783SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2784
a43a27c5
PH
2785PH/43 Yet another patch from the Sieve maintainer.
2786
58eb016e 2787PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2788 the response to the final '.' that terminates a message, but only in the
2789 case where the client has not sent further data following the '.'
2790 (unfortunately, this is allowed). However, in many cases there won't be
2791 any further data because there won't be any more messages to send. A call
2792 to select() can be used: if it shows that the input is "ready", there is
2793 either input waiting, or the socket has been closed. An attempt to read
2794 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2795 would have sent an OK response which the client would never have see.
563b63fa
PH
2796 This could lead to message repetition. This fix should cure that, at
2797 least in a lot of common cases.
58eb016e 2798
b43a74ea
PH
2799PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2800 advertised in response to EHLO.
2801
b4ed4da0 2802
5dd1517f
PH
2803Exim version 4.66
2804-----------------
2805
2806PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2807 fixed by 4.65/MH/01 (is this a record?) are fixed:
2808
2809 (i) An empty string was always treated as zero by the numeric comparison
2810 operators. This behaviour has been restored.
2811
2812 (ii) It is documented that the numeric comparison operators always treat
2813 their arguments as decimal numbers. This was broken in that numbers
2814 starting with 0 were being interpreted as octal.
2815
2816 While fixing these problems I realized that there was another issue that
2817 hadn't been noticed. Values of message_size_limit (both the global option
2818 and the transport option) were treated as octal if they started with 0.
2819 The documentation was vague. These values are now always treated as
2820 decimal, and I will make that clear in the documentation.
2821
2822
93cfa765
TK
2823Exim version 4.65
2824-----------------
2825
2826TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2827 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2828 versions. (#438)
2829
d6066548
MH
2830MH/01 Don't check that the operands of numeric comparison operators are
2831 integers when their expansion is in "skipping" mode (fixes bug
2832 introduced by 4.64-PH/07).
2833
4362ff0d
PH
2834PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2835 child addresses, Exim now panics and dies. Previously, because the count
2836 is held in a short int, deliveries were likely to be lost. As such a
2837 large number of recipients for a single message is ridiculous
2838 (performance will be very, very poor), I have chosen to impose a limit
2839 rather than extend the field.
2840
93cfa765 2841
944e9e9c
TF
2842Exim version 4.64
2843-----------------
aa41d2de 2844
21d74bd9
TK
2845TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2846 leftover -K file (the existence of which was triggered by #402).
2847 While we were at it, introduced process PID as part of the -K
2848 filename. This should rule out race conditions when creating
2849 these files.
2850
2851TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2852 processing considerably. Previous code took too long for large mails,
2853 triggering a timeout which in turn triggers #401.
2854
2855TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2856 in the DK code in transports.c. sendfile() is not really portable,
2857 hence the _LINUX specificness.
944e9e9c
TF
2858
2859TF/01 In the add_headers option to the mail command in an Exim filter,
2860 there was a bug that Exim would claim a syntax error in any
2861 header after the first one which had an odd number of characters
2862 in the field name.
2863
2b1c6e3a
PH
2864PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2865 callout verification, Exim cached a "reject" for the entire domain. This
2866 is correct for most verifications, but it is not correct for a recipient
2867 verification with use_sender or use_postmaster set, because in that case
2868 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2869 case of MAIL FROM:<> rejection from other early rejections (e.g.
2870 rejection of HELO). When verifying a recipient using a non-null MAIL
2871 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2872 Whatever the result of the callout, the value of the domain cache is
2873 left unchanged (for any other kind of callout, getting as far as trying
2874 RCPT means that the domain itself is ok).
2875
1f872c80
PH
2876PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2877 gcc 4.1.1 threw up.
2878
2879PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2880 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2881 session, the daemon ignores ECONNECT errors and logs others; it now
2882 ignores EPIPE as well.
2883
d203e649
PH
2884PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2885 (quoted-printable decoding).
2886
cc2ed8f7 2887PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2888 later the small subsequent patch to fix an introduced bug.
f951fd57 2889
ddfcd446
PH
2890PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2891
d45b1de8
PH
2892PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2893
2894PH/08 An error is now given if message_size_limit is specified negative.
2895
38a0a95f 2896PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2897 to be given (somewhat) arbitrary names.
38a0a95f 2898
a2405d83
JJ
2899JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2900 in 4.64-PH/09.
2901
2902JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2903 miscellaneous code fixes
2904
6ea85e9a
PH
2905PH/10 Added the log_reject_target ACL modifier to specify where to log
2906 rejections.
2907
26da7e20
PH
2908PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2909 hostname. This is wrong, because it relates to the incoming message (and
2910 probably the interface on which it is arriving) and not to the outgoing
2911 callout (which could be using a different interface). This has been
2912 changed to use the value of the helo_data option from the smtp transport
2913 instead - this is what is used when a message is actually being sent. If
2914 there is no remote transport (possible with a router that sets up host
2915 addresses), $smtp_active_hostname is used.
6ea85e9a 2916
14aa5a05 2917PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2918 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2919 (a) The code assumed that strncpy() returns a negative number on buffer
2920 overflow, which isn't the case. Replaced with Exim's string_format()
2921 function.
2922 (b) There were several signed/unsigned issues. I just did the minimum
2923 hacking in of casts. There is scope for a larger refactoring.
2924 (c) The code used strcasecmp() which is not a standard C function.
2925 Replaced with Exim's strcmpic() function.
2926 (d) The code set only $1; it now sets $auth1 as well.
2927 (e) A simple test gave the error "authentication client didn't specify
2928 service in request". It would seem that Dovecot has changed its
2929 interface. Fortunately there's a specification; I followed it and
2930 changed what the client sends and it appears to be working now.
2931
ff75a1f7
PH
2932PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2933 decoding.
2934
e6f6568e
PH
2935PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2936 address A is aliased to B and C, where B exists and C does not. Without
2937 -v the output is "A verified" because verification stops after a
2938 successful redirection if more than one address is generated. However,
2939 with -v the child addresses are also verified. Exim was outputting "A
2940 failed to verify" and then showing the successful verification for C,
2941 with its parentage. It now outputs "B failed to verify", showing B's
2942 parentage before showing the successful verification of C.
2943
d6f6e0dc
PH
2944PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2945 look up a TXT record in a specific list after matching in a combined
2946 list.
2947
322050c2
PH
2948PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2949 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2950 they consult the DNS. I had assumed they would set it the way they
2951 wanted; and indeed my experiments on Linux seem to show that in some
2952 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2953 To be on the safe side, however, I have now made the interface to
2954 host_find_byname() similar to host_find_bydns(), with an argument
2955 containing the DNS resolver options. The host_find_byname() function now
2956 sets these options at its start, just as host_find_bydns() does. The smtp
2957 transport options dns_qualify_single and dns_search_parents are passed to
2958 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2959 of host_find_byname() use the default settings of RES_DEFNAMES
2960 (qualify_single) but not RES_DNSRCH (search_parents).
2961
08955dd3
PH
2962PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2963 spool_read_header() do less string testing, by means of a preliminary
2964 switch on the second character of optional "-foo" lines. (This is
2965 overdue, caused by the large number of possibilities that now exist.
2966 Originally there were few.) While I was there, I also converted the
2967 str(n)cmp tests so they don't re-test the leading "-" and the first
2968 character, in the hope this might squeeze out yet more improvement.
2969
1eccaa59
PH
2970PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2971 flag allowing group syntax was set by the header_syntax check but not
2972 turned off, possible causing trouble later; (2) The flag was not being
2973 set at all for the header_verify test, causing "group"-style headers to
2974 be rejected. I have now set it in this case, and also caused header_
2975 verify to ignore an empty address taken from a group. While doing this, I
2976 came across some other cases where the code for allowing group syntax
2977 while scanning a header line wasn't quite right (mostly, not resetting
2978 the flag correctly in the right place). These bugs could have caused
2979 trouble for malformed header lines. I hope it is now all correct.
2980
602e59e5
PH
2981PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2982 with the "reply" argument non-NULL. The code, however (which originally
2983 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2984 but it didn't always do it. This confused somebody who was copying the
2985 code for some other use. I have removed all the tests.
2986
411ef850
PH
2987PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2988 feature that was used to support insecure browsers during the U.S. crypto
2989 embargo. It requires special client support, and Exim is probably the
2990 only MTA that supported it -- and would never use it because real RSA is
2991 always available. This code has been removed, because it had the bad
2992 effect of slowing Exim down by computing (never used) parameters for the
2993 RSA_EXPORT functionality.
2994
7befa435
PH
2995PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2996 authenticator to fail if there's a tab character in the incoming data
2997 (there should never be unless someone is messing about, as it's supposed
2998 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2999 if the connection is using TLS or if the remote IP is the same as the
3000 local IP, and the "valid-client-cert option" if a client certificate has
3001 been verified.
3002
48da4259 3003PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3004 authenticators. This can be used for authorization after authentication
3005 succeeds. (In the case of plaintext, it servers for both authentication
3006 and authorization.)
3007
48da4259
PH
3008PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3009 if any retry times were supplied.
3010
d1d5595c
PH
3011PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3012 connection, where there is no client IP address to check. In this
3013 situation, the verify now always succeeds.
3014
0ef732d9
PH
3015PH/25 Applied John Jetmore's -Mset patch.
3016
328895cc
PH
3017PH/26 Added -bem to be like -Mset, but loading a message from a file.
3018
fd700877
PH
3019PH/27 In a string expansion for a processed (not raw) header when multiple
3020 headers of the same name were present, leading whitespace was being
3021 removed from all of them, but trailing whitespace was being removed only
3022 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3023 before concatenation. Completely empty headers in a concatenation (as
3024 before) are ignored.
fd700877 3025
8dce1a6f
PH
3026PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3027 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3028
17af4a17
PH
3029PH/29 [Removed. This was a change that I later backed out, and forgot to
3030 correct the ChangeLog entry (that I had efficiently created) before
3031 committing the later change.]
f6c332bd
PH
3032
3033PH/30 Exim was sometimes attempting to deliver messages that had suffered
3034 address errors (4xx response to RCPT) over the same connection as other
3035 messages routed to the same hosts. Such deliveries are always "forced",
3036 so retry times are not inspected. This resulted in far too many retries
3037 for the affected addresses. The effect occurred only when there were more
3038 hosts than the hosts_max_try setting in the smtp transport when it had
3039 the 4xx errors. Those hosts that it had tried were not added to the list
3040 of hosts for which the message was waiting, so if all were tried, there
3041 was no problem. Two fixes have been applied:
3042
3043 (i) If there are any address or message errors in an SMTP delivery, none
3044 of the hosts (tried or untried) are now added to the list of hosts
3045 for which the message is waiting, so the message should not be a
3046 candidate for sending over the same connection that was used for a
3047 successful delivery of some other message. This seems entirely
3048 reasonable: after all the message is NOT "waiting for some host".
3049 This is so "obvious" that I'm not sure why it wasn't done
3050 previously. Hope I haven't missed anything, but it can't do any
3051 harm, as the worst effect is to miss an optimization.
3052
3053 (ii) If, despite (i), such a delivery is accidentally attempted, the
3054 routing retry time is respected, so at least it doesn't keep
3055 hammering the server.
3056
c1114884
PH
3057PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3058 in ${readsocket because some servers need this prod.
3059
7a0743eb
PH
3060PH/32 Added some extra debug output when updating a wait-xxx database.
3061
0d85fa3f
PH
3062PH/33 The hint "could be header name not terminated by colon", which has been
3063 given for certain expansion errors for a long time, was not being given
3064 for the ${if def:h_colon_omitted{... case.
3065
1bf43b78
PH
3066PH/34 The spec says: "With one important exception, whenever a domain list is
3067 being scanned, $domain contains the subject domain." There was at least
3068 one case where this was not true.
3069
520de300
PH
3070PH/35 The error "getsockname() failed: connection reset by peer" was being
3071 written to the panic log as well as the main log, but it isn't really
3072 panic-worthy as it just means the connection died rather early on. I have
3073 removed the panic log writing for the ECONNRESET error when getsockname()
3074 fails.
3075
48c7f9e2
PH
3076PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3077 runs only) independently of the message's sender address. This meant
3078 that, if the 4xx error was in fact related to the sender, a different
3079 message to the same recipient with a different sender could confuse
4c04137d 3080 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3081 server, but other circumstances could also provoke similar problems.
3082 I have changed the default so that the retry time for these errors is now
3083 based a combination of the sender and recipient addresses. This change
3084 can be overridden by setting address_retry_include_sender=false in the
3085 smtp transport.
3086
99ea1c86
PH
3087PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3088 remote server are returned as part of bounce messages. This was not
3089 happening for LMTP over a pipe (the lmtp transport), but now it is the
3090 same for both kinds of LMTP.
3091
a2042e78
PH
3092PH/38 Despite being documented as not happening, Exim was rewriting addresses
3093 in header lines that were in fact CNAMEs. This is no longer the case.
3094
4fbcfc2e
PH
3095PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3096 and queue runs started by the daemon processed all messages. This has
3097 been fixed so that -R and -S can now usefully be given with -q<time>.
3098
aa41d2de
PH
3099PH/40 Import PCRE release 6.7 (fixes some bugs).
3100
af561417
PH
3101PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3102
3cc66b45
PH
3103PH/42 Give an error if -q is specified more than once.
3104
194cc0e4
PH
3105PH/43 Renamed the variables $interface_address and $interface_port as
3106 $received_ip_address and $received_port, to make it clear that these
3107 values apply to message reception, and not to the outgoing interface when
3108 a message is delivered. (The old names remain recognized, of course.)
3109
a401ddaa
PH
3110PH/44 There was no timeout on the connect() call when using a Unix domain
3111 socket in the ${readsocket expansion. There now is.
3112
4e88a19f
PH
3113PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3114 be meaningful with "accept".
3115
d7d7b289
SC
3116SC/01 Eximstats V1.43
3117 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3118
3119SC/02 Eximstats V1.44
3120 Use a glob alias rather than an array ref in the generated
3121 parser. This improves both readability and performance.
3122
3123SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3124 Collect SpamAssassin and rejection statistics.
3125 Don't display local sender or destination tables unless
3126 there is data to show.
3127 Added average volumes into the top table text output.
3128
3129SC/04 Eximstats V1.46
3130 Collect data on the number of addresses (recipients)
3131 as well as the number of messages.
3132
3133SC/05 Eximstats V1.47
3134 Added 'Message too big' to the list of mail rejection
3135 reasons (thanks to Marco Gaiarin).
3136
3137SC/06 Eximstats V1.48
3138 Mainlog lines which have GMT offsets and are too short to
3139 have a flag are now skipped.
3140
3141SC/07 Eximstats V1.49 (Alain Williams)
3142 Added the -emptyok flag.
3143
3144SC/08 Eximstats V1.50
3145 Fixes for obtaining the IP address from reject messages.
3146
0ea2a468
JJ
3147JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3148 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3149 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3150
3151JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3152 match 4.64-PH/13
3153
3154JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3155 are found, allow negative numbers in numeric criteria)
3156
3157JJ/06 exipick.20061117.2, added new $message_body_missing variable
3158
3159JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3160 to match changes made in 4.64-PH/43
3161
8a10f5a4
PH
3162PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3163
30e18802
PH
3164PH/47 Put in an explicit test for a DNS lookup of an address record where the
3165 "domain" is actually an IP address, and force a failure. This locks out
3166 those revolvers/nameservers that support "A-for-A" lookups, in
3167 contravention of the specifications.
3168
55728a4f
PH
3169PH/48 When a host name was looked up from an IP address, and the subsequent
3170 forward lookup of the name timed out, the host name was left in
3171 $sender_host_name, contrary to the specification.
d7d7b289 3172
d7837193
PH
3173PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3174 restricted to single-key lookups, Exim was not diagnosing an error if
3175 * or *@ was used with a query-style lookup.
3176
87054a31
PH
3177PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3178
ea2c01d2
MH
3179MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3180 long ago, but noone interested enough thought of it. Let's just say that
3181 the "1.1" means that there are some new functions that weren't there at
3182 some point in the past.
3183
e4fa6968
PH
3184PH/51 Error processing for expansion failure of helo_data from an smtp
3185 transport during callout processing was broken.
3186
56f5d9bd
PH
3187PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3188 tested/used via the -bh/-bhc/-bs options.
3189
922e1c28
PH
3190PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3191 bug, fixed in subsequent PCRE releases).
3192
21eb6e72
PH
3193PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3194 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3195
a0540757
PH
3196PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3197
944e9e9c 3198
478be7b0
SC
3199Exim version 4.63
3200-----------------
3201
3202SC/01 Use a glob alias rather than an array ref in eximstats generated
3203 parser. This improves both readability and performance.
3204
3205SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3206 Don't display local sender or destination tables in eximstats unless
3207 there is data to show.
3208 Added average volumes into the eximstats top table text output.
3209
3210SC/03 Collect data on the number of addresses (recipients) as well
3211 as the number of messages in eximstats.
3212
2b965a65
TF
3213TF/01 Correct an error in the documentation for the redirect router. Exim
3214 does (usually) call initgroups() when daemonizing.
478be7b0 3215
45b91596
PH
3216TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3217 with consistent privilege compared to when running as a daemon.
478be7b0 3218
c59f5781
TF
3219TF/03 Note in the spec that $authenticated_id is not set for local
3220 submissions from trusted users.
3221
90fc3069
TF
3222TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3223 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3224
6083aca0
TF
3225TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3226 by adding some example configuration directives to the default
3227 configuration file. A little bit of work is required to uncomment the
3228 directives and define how usernames and passwords are checked, but
3229 there is now a framework to start from.
3230
765b530f
PH
3231PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3232 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3233 without this. I don't know how relevant this is to other LDAP libraries.
3234
4e167a8c
PH
3235PH/02 Add the verb name to the "unknown ACL verb" error.
3236
4608d683
PH
3237PH/03 Magnus Holmgren's patch for filter_prepend_home.
3238
b8dc3e4a
PH
3239PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3240
5418e93b
PH
3241PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3242 directory not expanded when it should be if an expanded home directory
3243 was set for the address (which is overridden by the transport).
3244
b4a9bda2
PH
3245PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3246 libradius.
3247
45b91596
PH
3248PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3249 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3250 because it is too late at that time, and has no effect.
3251
5547e2c5
PH
3252PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3253 security issue with \' (bugzilla #107). I could not use the
3254 PQescapeStringConn() functi