GnuTLS: repeat lowlevel read and write operations while they request retry
[exim.git] / doc / doc-txt / ChangeLog
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495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
4896a319
AM
8Exim version 4.93
9-----------------
10
11JH/01 GnuTLS: repeat lowlevel read and write operations while they return error
12 codes indicating retry. Under TLS1.3 this becomes required.
13
14
d99f54e4
JH
15Exim version 4.92
16-----------------
17
9723f966
JH
18JH/01 Remove code calling the customisable local_scan function, unless a new
19 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
20
21JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
JH
22 non-signal-safe functions being used.
23
24JH/03 Bug 2269: When presented with a received message having a stupidly large
25 number of DKIM-Signature headers, disable DKIM verification to avoid
26 a resource-consumption attack. The limit is set at twenty.
9723f966 27
ea7b1f16
JH
28JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
29 report of oldest_pass in ${authres } in consequence, and separate out
30 some descriptions of reasons for verification fail.
31
cfbb0d24
JH
32JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
33 files in the spool were present and unlocked. A queue-runner could spot
34 them, resulting in a duplicate delivery. Fix that by doing the unlock
0488984d
JH
35 after the unlink. Investigation by Tim Stewart. Take the opportunity to
36 add more error-checking on spoolfile handling while that code is being
cfbb0d24
JH
37 messed with.
38
85defcf0
PP
39PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
40 No known attacks, no CVE, this is defensive hardening.
41
1bd642c2
JH
42JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
43 a queue-runner could start a delivery while other operations were ongoing.
44 Cutthrough delivery was a common victim, resulting in duplicate delivery.
45 Found and investigated by Tim Stewart. Fix by using the open message data
46 file handle rather than opening another, and not locally closing it (which
47 releases a lock) for that case, while creating the temporary .eml format
48 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
49
2ddb4094
JH
50JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
51 $sender_verify_failure/$recipient_verify_failure to "random".
52
1613fd68
JH
53JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
54 legitimate.
55
e6057245
JH
56JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
57 Previously this would segfault.
58
7b9822bf
JH
59JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
60 segfault.
61
d8d9f930
JH
62JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
63 like zero, since the resolver should be doing this for us, But we need one
64 as a CNAME but no MX presence gets the CNAME returned; we need to check
65 that doesn't point to an MX to declare it "no MX returned" rather than
66 "error, loop". A new main option is added so the older capability of
67 following some limited number of chain links is maintained.
68
61e3f250
JH
69JH/12 Add client-ip info to non-pass iprev ${authres } lines.
70
7a8b9519
JH
71JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
72 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
73 now-deprecated earlier definitions used only specified the range up to TLS
74 1.2 (in the older-version library docs).
75
49e56fb3
JH
76JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
77
74f1a423
JH
78JH/15 Rework TLS client-side context management. Stop using a global, and
79 explicitly pass a context around. This enables future use of TLS for
80 connections to service-daemons (eg. malware scanning) while a client smtp
81 connection is using TLS; with cutthrough connections this is quite likely.
82
5054c4fd 83JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
JH
84
85JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 86
946515bf
JH
87JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
88 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
89 Previously the "utf8" would be re-prepended for every additional message.
90
8c34c611
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91JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
92 Previously thery were accepted, resulting in issues when attempting to
93 forward messages to a non-supporting MTA.
94
1bca4f5f
PP
95PP/02 Let -n work with printing macros too, not just options.
96
8a6b4e02
JH
97JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
98 one parent address was copied, and bogus data was used at delivery-logging
99 time. Either a crash (after delivery) or bogus log data could result.
100 Discovery and analysis by Tim Stewart.
101
0a682b6c
PP
102PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
103 Previously if the string ended mid-character, we did not insert the
104 promised '?' replacement.
105
c2c451ac
PP
106PP/04 Documentation: current string operators work on bytes, not codepoints.
107
8768d548
JH
108JH/21 Change as many as possible of the global flags into one-bit bitfields; these
109 should pack well giving a smaller memory footprint so better caching and
110 therefore performance. Group the declarations where this can't be done so
111 that the byte-sized flag variables are not interspersed among pointer
112 variables, giving a better chance of good packing by the compiler.
113
5455f548
JH
114JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
115 non-null, to avoid issues with sites running BATV. Previously reports were
116 sent with an empty envelope sender so looked like bounces.
117
25beaee4
MK
118JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
119 The ignore_error flag wasn't being returned from the filter subprocess so
120 was not set for later routers. Investigation and fix by Matthias Kurz.
121
7ea1237c 122JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 123 and a msg:complete for the whole, when a message is manually removed using
7ea1237c
MK
124 -Mrm. Developement by Matthias Kurz, hacked on by JH.
125
ebda598a
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126JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
127 a "Gnu special" function, asprintf() in the DB utility binary builds; I
128 hope that is portable enough.
129
570cb1bd
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130JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
131 requiring a known-CA anchor certificate; make it now rely entirely on the
132 TLSA as an anchor. Checking the name on the leaf cert against the name
133 on the A-record for the host is still done for TA (but not for EE mode).
134
eb58ddf5
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135JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
136 included in delivery lines for non-proxied connections, when compiled with
137 SUPPORT_SOCKS and running with proxy logging enabled.
138
ffbc20ed
MK
139JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
140 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
141 move the existing event to fire before the normal logging of message
142 failure so that custom logging is bracketed by normal logging.
143
4e928780
MK
144JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
145 msg:fail:internal event. Developement by Matthias Kurz.
146
75c121f0 147JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 148 far too small for todays use of crypto signatures stored there. Go all
75c121f0
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149 the way to the max DNS message size of 64kB, even though this might be
150 overmuch for IOT constrained device use.
151
e30f4f43
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152JH/31 Fix a bad use of a copy function, which could be used to pointlessly
153 copy a string over itself. The library routine is documented as not
154 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
155
a45431fa
JH
156JH/32 For main options check_spool_space and check_inode_space, where the
157 platform supports 64b integers, support more than the previous 2^31 kB
158 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
159 the previous G, M, k.
160
c0fb53b7
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161JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
162 $authenticated_fail_id variable on authentication failure. Previously
163 it was unset.
164
6aac3239
JH
165JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
166 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
167 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
168 GNUTLS_SEC_PARAM_MEDIUM.
169
5a2a0989
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170JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
171 side. Previously we would continue as if no SNI had been received.
172
de6f74f2 173JH/36 Harden the handling of string-lists. When a list consisted of a sole
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174 "<" character, which should be a list-separator specification, we walked
175 off past the nul-terimation.
176
de6f74f2
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177JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
178 causes) even when the retry time is not yet met. Previously they were
179 not, meaning that when (say) an account was over-quota and temp-rejecting,
180 and multiple senders' messages were queued, only one sender would get
181 notified on each configured delay_warning cycle.
182
aa6e77af 183JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 184
25fa0868
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185JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
186 cipher-suites, an error can be left on the stack even for a succeeding
187 accept; this results in impossible error messages when a later operation
188 actually does fail.
189
9723f966 190
bb264f6b
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191Exim version 4.91
192-----------------
459fca58 193
c39c8870 194GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
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195 When redis_servers is set to a list of > 1 element, and the Redis servers
196 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
197 case of MOVED into a DEFER case instead, thus moving the query onto the
198 next server in the list. For a cluster of N elements, all N servers must
199 be defined in redis_servers.
c39c8870 200
0800ef83
GF
201GF/02 Catch and remove uninitialized value warning in exiqsumm
202 Check for existence of @ARGV before looking at $ARGV[0]
203
459fca58
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204JH/01 Replace the store_release() internal interface with store_newblock(),
205 which internalises the check required to safely use the old one, plus
206 the allocate and data copy operations duplicated in both (!) of the
207 extant use locations.
208
944e8b37
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209JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
210 modifier. This matches the restriction on the commandline.
211
bbfb5dcd
JH
212JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
213 Previously only the last row was returned.
214
a05d3e34
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215JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
216 we assumed that tags in the header were well-formed, and parsed the
217 element content after inspecting only the first char of the tag.
218 Assumptions at that stage could crash the receive process on malformed
219 input.
220
ce93c6d8
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221JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
222 While running the DKIM ACL we operate on the Permanent memory pool so that
223 variables created with "set" persist to the DATA ACL. Also (at any time)
224 DNS lookups that fail create cache records using the Permanent pool. But
225 expansions release any allocations made on the current pool - so a dnsdb
226 lookup expansion done in the DKIM ACL releases the memory used for the
227 DNS negative-cache, and bad things result. Solution is to switch to the
228 Main pool for expansions.
229 While we're in that code, add checks on the DNS cache during store_reset,
230 active in the testsuite.
231 Problem spotted, and debugging aided, by Wolfgang Breyha.
232
2577f55f
JH
233JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
234 When none of the hosts presented to a transport match an already-open
235 connection, close it and proceed with the list. Previously we would
236 queue the message. Spotted by Lena with Yahoo, probably involving
237 round-robin DNS.
238
5b6f7658
JH
239JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
240 Previously a spurious "250 OK id=" response was appended to the proper
241 failure response.
242
c11d665d
JH
243JH/08 The "support for" informational output now, which built with Content
244 Scanning support, has a line for the malware scanner interfaces compiled
245 in. Interface can be individually included or not at build time.
e5ba8aa7
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246
247JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
248 by the template makefile "src/EDITME". The "STREAM" support for an older
249 ClamAV interface method is removed.
c11d665d 250
ba0e37b1
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251JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
252 rows affected is given instead).
253
96508de1
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254JH/11 The runtime Berkeley DB library version is now additionally output by
255 "exim -d -bV". Previously only the compile-time version was shown.
256
06fdb9f7
JH
257JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
258 SMTP connection. Previously, when one had more receipients than the
259 first, an abortive onward connection was made. Move to full support for
260 multiple onward connections in sequence, handling cutthrough connection
261 for all multi-message initiating connections.
262
f83a760f
JH
263JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
264 routers. Previously, a multi-recipient message would fail to match the
265 onward-connection opened for the first recipient, and cause its closure.
266
f1fed05b
JH
267JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
268 a timeout on read on a GnuTLS initiating connection, resulting in the
269 initiating connection being dropped. This mattered most when the callout
270 was marked defer_ok. Fix to keep the two timeout-detection methods
271 separate.
272
051d5efa
JH
273JH/15 Relax results from ACL control request to enable cutthrough, in
274 unsupported situations, from error to silently (except under debug)
275 ignoring. This covers use with PRDR, frozen messages, queue-only and
276 fake-reject.
277
cf3cd306
HSHR
278HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
279
744976d4
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280JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
281 metadata, resulting in a crash in free().
282
aab9a843 283PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 284 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 285 Broken also in d185889f4, with init system revamp.
7be14582 286
83d2a861
JH
287JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
288 Previously we abruptly closed the connection after reading a malware-
289 found indication; now we go on to read the "scan ok" response line,
290 and send a quit.
291
6741531c
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292JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
293 ACL. Previously, a crash would result.
294
85e03244
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295JH/19 Speed up macro lookups during configuration file read, by skipping non-
296 macro text after a replacement (previously it was only once per line) and
297 by skipping builtin macros when searching for an uppercase lead character.
298
c0635b6d
JH
299JH/20 DANE support moved from Experimental to mainline. The Makefile control
300 for the build is renamed.
301
b808677c
JH
302JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
303 was allocated for every new TLS startup, meaning one per message. Fix
304 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
305
6678c382
JH
306JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
307 reported the original. Fix to report (as far as possible) the ACL
308 result replacing the original.
309
dec766a1
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310JH/23 Fix memory leak during multi-message connections using STARTTLS under
311 OpenSSL. Certificate information is loaded for every new TLS startup,
312 and the resources needed to be freed.
313
15ae19f9
JH
314JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
315
e6532c4a
JH
316JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
317 was not propagated.
318
2556b3c6
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319JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
320 DATA response info to the (existing) per-recipient response info for
321 the "C=" log element. It can have useful tracking info from the
322 destination system. Patch from Simon Arlott.
323
fc8cd529
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324JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
325 length value. Previously this would segfault.
326
71bb51e0
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327HS/02 Support Avast multiline protoocol, this allows passing flags to
328 newer versions of the scanner.
329
e04bfa34
JH
330JH/28 Ensure that variables possibly set during message acceptance are marked
331 dead before release of memory in the daemon loop. This stops complaints
332 about them when the debug_store option is enabled. Discovered specifically
333 for sender_rate_period, but applies to a whole set of variables.
c232fc99
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334 Do the same for the queue-runner and queue-list loops, for variables set
335 from spool message files. Do the same for the SMTP per-message loop, for
336 certain variables indirectly set in ACL operations.
e04bfa34 337
ecce6d9a
JH
338JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
339 as a multi-recipient message from a mailinglist manager). The coding had
340 an arbitrary cutoff number of characters while checking for more input;
341 enforced by writing a NUL into the buffer. This corrupted long / fast
342 input. The problem was exposed more widely when more pipelineing of SMTP
343 responses was introduced, and one Exim system was feeding another.
344 The symptom is log complaints of SMTP syntax error (NUL chars) on the
345 receiving system, and refused recipients seen by the sending system
346 (propating to people being dropped from mailing lists).
347 Discovered and pinpointed by David Carter.
348
c9cf9ac4
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349JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
350 replaced by the ${authresults } expansion.
351
b3b37076
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352JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
353
830832c9
HSHR
354HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
355 allows proper process termination in container environments.
356
f64e8b5f
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357JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
358 Previously the "final dot" had a newline after it; ensure it is CR,LF.
359
8f0776b5
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360JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
361 and "err_perm", deprecated since 4.83 when the RFC-defined words
362 "temperror" and "permerror" were introduced.
363
857eaf37
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364JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
365 transport-filters or DKIM-signing. The restriction was lost in the
366 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 367 Extend the restriction to also cover ARC-signing.
857eaf37 368
c85476e9
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369JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
370 in defer=pass mode supply a 450 to the initiator. Previously the message
371 would be spooled.
372
405074ad
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373PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
374 tls_require_ciphers is used as before.
375
eb445b04
HSHR
376HS/03 Malware Avast: Better match the Avast multiline protocol. Add
377 "pass_unscanned". Only tmpfails from the scanner are written to
378 the paniclog, as they may require admin intervention (permission
379 denied, license issues). Other scanner errors (like decompression
380 bombs) do not cause a paniclog entry.
ad93c40f 381
d342446f
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382JH/36 Fix reinitialisation of DKIM logging variable between messages.
383 Previously it was possible to log spurious information in receive log
384 lines.
385
a28050f8
JH
386JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
387 triggered odd behaviour from Outlook Express clients.
388
ddd16464
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389PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
390 suffix list.
391
321ef002
JH
392JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
393 since the IETF WG has not yet settled on that versus the original
394 "bare" representation.
395
3203e7ba
JH
396JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
397 Previously the millisecond value corrupted the output.
398 Fix also for syslog_pid=no and log_selector +pid, for which the pid
399 corrupted the output.
400
bbfb5dcd 401
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402Exim version 4.90
403-----------------
404
405JH/01 Rework error string handling in TLS interface so that the caller in
406 more cases is responsible for logging. This permits library-sourced
407 string to be attached to addresses during delivery, and collapses
408 pairs of long lines into single ones.
409
856d1e16
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410PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
411 during configuration. Wildcards are allowed and expanded.
412
b9df1829
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413JH/02 Rework error string handling in DKIM to pass more info back to callers.
414 This permits better logging.
415
875512a3
JH
416JH/03 Rework the transport continued-connection mechanism: when TLS is active,
417 do not close it down and have the child transport start it up again on
418 the passed-on TCP connection. Instead, proxy the child (and any
419 subsequent ones) for TLS via a unix-domain socket channel. Logging is
420 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 421 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 422
fc3f96af
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423JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
424 identical IP addresses on different listening ports. Will also affect
425 "exiwhat" output.
426
98913c8e
BK
427PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
428 add noisy ifdef guards to special-case this sillyness.
429 Patch from Bernd Kuhls.
430
8d909960
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431JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
432 than 255 are no longer allowed.
433
7006ee24
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434JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
435 Disable the session-cache too, which might reduce our load. Since we
436 currrectly use a new context for every connection, both as server and
437 client, there is no benefit for these.
438 GnuTLS appears to not support tickets server-side by default (we don't
439 call gnutls_session_ticket_enable_server()) but client side is enabled
440 by default on recent versions (3.1.3 +) unless the PFS priority string
441 is used (3.2.4 +).
442
6e411084
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443PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
444 <https://reproducible-builds.org/specs/source-date-epoch/>.
445
4c2471ca
JH
446JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
447 the check for any unsuccessful recipients did not notice the limit, and
448 erroneously found still-pending ones.
449
4e910c01
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450JH/08 Pipeline CHUNKING command and data together, on kernels that support
451 MSG_MORE. Only in-clear (not on TLS connections).
452
42055a33
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453JH/09 Avoid using a temporary file during transport using dkim. Unless a
454 transport-filter is involved we can buffer the headers in memory for
455 creating the signature, and read the spool data file once for the
456 signature and again for transmission.
457
eeb35890
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458JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
459 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 460 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 461
b7d3afcf
JH
462JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
463 case where the routing stage had gathered several addresses to send to
464 a host before calling the transport for the first, we previously failed
465 to close down TLS in the old transport process before passing the TCP
466 connection to the new process. The new one sent a STARTTLS command
467 which naturally failed, giving a failed delivery and bloating the retry
468 database. Investigation and fix prototype from Wolfgang Breyha.
469
40525d07
JH
470JH/12 Fix check on SMTP command input synchronisation. Previously there were
471 false-negatives in the check that the sender had not preempted a response
472 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 473 awareness of the SMTP input buffering.
40525d07 474
f33875c3
PP
475PP/04 Add commandline_checks_require_admin option.
476 Exim drops privileges sanely, various checks such as -be aren't a
477 security problem, as long as you trust local users with access to their
478 own account. When invoked by services which pass untrusted data to
479 Exim, this might be an issue. Set this option in main configuration
480 AND make fixes to the calling application, such as using `--` to stop
481 processing options.
482
a5ffa9b4
JH
483JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
484 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
485 responses to those, into a single TLS record each way (this usually means
486 a single packet). As a side issue, smtp_enforce_sync now works on TLS
487 connections.
925ac8e4 488
6600985a
PP
489PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
490 affects you only if you're dancing at the edge of the param size limits.
491 If you are, and this message makes sense to you, then: raise the
492 configured limit or use OpenSSL 1.1. Nothing we can do for older
493 versions.
494
ac4d558b
JH
495JH/14 For the "sock" variant of the malware scanner interface, accept an empty
496 cmdline element to get the documented default one. Previously it was
497 inaccessible.
498
e69636bc
JH
499JH/15 Fix a crash in the smtp transport caused when two hosts in succession
500 are unsuable for non-message-specific reasons - eg. connection timeout,
501 banner-time rejection.
502
a843a57e
JH
503JH/16 Fix logging of delivery remote port, when specified by router, under
504 callout/hold.
505
8e041ae0
PP
506PP/06 Repair manualroute's ability to take options in any order, even if one
507 is the name of a transport.
833c70bc
PP
508 Fixes bug 2140.
509
35a04365
HSHR
510HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
511
4226691b
JH
512JH/17 Change the list-building routines interface to use the expanding-string
513 triplet model, for better allocation and copying behaviour.
514
d185889f
JH
515JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
516 Previously it was constructed the first time a possibly-matching string
517 was met in the configuration file input during startup; now it is done
518 during compilation.
519
0a6c178c
JH
520JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
521 compatible one, to avoid the (poorly documented) possibility of a config
522 file in the working directory redirecting the DB files, possibly correpting
02745400 523 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 524
fae8970d
JH
525JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
526 cache-hot. Previously, although the result was properly cached, the
527 initial verify call returned a defer.
528
ad1a76fe 529JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
530 the main verify for receipient in uncached-mode.
531
ad1a76fe
JH
532JH/22 Retire historical build files to an "unsupported" subdir. These are
533 defined as "ones for which we have no current evidence of testing".
534
135e9496
JH
535JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
536 if present. Previously it was ignored.
537
f2ed27cf
JH
538JH/24 Start using specified-initialisers in C structure init coding. This is
539 a C99 feature (it's 2017, so now considered safe).
540
7eb0e5d2
JH
541JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
542 if was a fixed-sized field and bitmask ops via macros; it is now more
543 extensible.
544
4f9f4be4
545PP/07 GitHub PR 56: Apply MariaDB build fix.
546 Patch provided by Jaroslav Škarvada.
547
dc4de9cc
PP
548PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
549 during Coverity cleanups [4.87 JH/47]
550 Diagnosis and fix provided by Michael Fischer v. Mollard.
551
ea18931d
JH
552JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
553 the right size to place the terminating semicolon on its own folded
554 line, the header hash was calculated to an incorrect value thanks to
555 the (relaxed) space the fold became.
556
0768462d 557HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
558 and confused the parent.
559
848214f7
JH
560JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
561 which could crash as a result. This could lead to undeliverable messages.
562
9e0ed81f
JH
563JH/28 Logging: "next input sent too soon" now shows where input was truncated
564 for log purposes.
565
2540f2f8
JH
566JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
567 matters on fast-turnover and PID-randomising systems, which were getting
568 out-of-order delivery.
569
e5ab0ba9
JH
570JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
571 a possibly-overlapping copy. The symptom was that "Remote host closed
572 connection in response to HELO" was logged instead of the actual 4xx
573 error for the HELO.
574
e99a3a6c
JH
575JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
576 Previously only that bufferd was discarded, resulting in SYMTP command
577 desynchronisation.
578
18067c75
JH
579JH/32 DKIM: when a message has multiple signatures matching an identity given
580 in dkim_verify_signers, run the dkim acl once for each. Previously only
581 one run was done. Bug 2189.
582
72934ba7
JH
583JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
584 "panic the current process" to "deliberately defer". The panic log is
585 still written with the problem list name; the mail and reject logs now
586 get a temp-reject line for the message that was being handled, saying
587 something like "domains check lookup or other defer". The SMTP 451
588 message is still "Temporary local problem".
589
625667b6
JH
590JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
591 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
592 freed. CVE-2017-16943.
593
594HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
595 from SMTP input. Previously it was always done; now only done for DATA
596 and not BDAT commands. CVE-2017-16944.
625667b6 597
d21bf202
JH
598JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
599 to the message (such as an overlong header line). Previously this was
600 not done and we did not exit BDAT mode. Followon from the previous item
601 though a different problem.
602
acfc18c3 603
fd047340 604Exim version 4.89
acfc18c3 605-----------------
4c57a40e 606
9427e879 607JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 608 than -2003 did; needs libidn2 in addition to libidn.
fd047340 609
7b283890
JH
610JH/02 The path option on a pipe transport is now expanded before use.
611
4c57a40e
PP
612PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
613 Patch provided by "Björn", documentation fix added too.
614
5d036699
JH
615JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
616 missing a wire-to-host endian conversion.
617
f4630439
JH
618JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
619 close after a BDAT command line could be taken as a following command,
620 giving a synch failure. Fix by only checking for synch immediately
621 before acknowledging the chunk.
622
f988ce57
JS
623PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
624 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
625 macro. Patches provided by Josh Soref.
626
bd8fbe36
JH
627JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
628 Previously we did not; the RFC seems ambiguous and VRFY is not listed
629 by IANA as a service extension. However, John Klensin suggests that we
630 should.
631
632JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
633 the dkim code may be unix-mode line endings rather than smtp wire-format
634 CRLF, so prepend a CR to any bare LF.
fd047340 635
bd8fbe36 636JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
637 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
638
bd8fbe36
JH
639JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
640 the first were themselves being wrongly included in the feed into dkim
641 processing; with most chunk sizes in use this resulted in an incorrect
642 body hash calculated value.
643
eea19017
JH
644JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
645 DKIM signature block, for verification. Although advised against by
646 standards it is specifically not ruled illegal.
647
44e6651b
JH
648JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
649
650JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
651 missing a body hash (the bh= tag).
652
653JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
654 It seems that HAProxy sends the Proxy Protocol information in clear and
655 only then does a TLS startup, so do the same.
656
657JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
658 TCP connections (such as for Spamd) unless the daemon successfully set
659 Fast Open mode on its listening sockets. This fixes breakage seen on
660 too-old kernels or those not configured for Fast Open, at the cost of
661 requiring both directions being enabled for TFO, and TFO never being used
662 by non-daemon-related Exim processes.
663
664JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
665 endings, at least on the first header line. Try to canonify any that get
666 past that check, despite the cost.
667
b6040544
JH
668JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
669 now limited to an arbitrary five deep, while parsing addresses with the
670 strip_excess_angle_brackets option enabled.
671
f700ea4d
PP
672PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
673 instead leave the unprompted TLS handshake in socket buffer for the
674 TLS library to consume.
675
da88acae
PP
676PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
677
f6ef9370
PP
678PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
679
90341c71
JH
680JH/16 Drop variables when they go out of scope. Memory management drops a whole
681 region in one operation, for speed, and this leaves assigned pointers
682 dangling. Add checks run only under the testsuite which checks all
683 variables at a store-reset and panics on a dangling pointer; add code
684 explicitly nulling out all the variables discovered. Fixes one known
685 bug: a transport crash, where a dangling pointer for $sending_ip_address
686 originally assigned in a verify callout, is re-used.
687
1ec2ab36
PP
688PP/06 Drop '.' from @INC in various Perl scripts.
689
690PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
691
692PP/08 Reduce a number of compilation warnings under clang; building with
693 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
694 should be warning-free.
695
8b2b9480
PP
696JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
697
698HS/01 Fix portability problems introduced by PP/08 for platforms where
699 realloc(NULL) is not equivalent to malloc() [SunOS et al].
700
d953610f
HSHR
701HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
702 chunk. This allows us to accept broken chunked messages. We need a more
703 general solution here.
704
7dc5f827
PP
705PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
706 already-broken messages in the queue.
707
4bb432cb
PP
708JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
709
3b1a84c8
PP
710JH/19 Fix reference counting bug in routing-generated-address tracking.
711
902fbd69 712
8d042305
JH
713Exim version 4.88
714-----------------
4c57a40e 715
9094b84b
JH
716JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
717 supports it and a size is available (ie. the sending peer gave us one).
8d042305 718
03d5892b
JH
719JH/02 The obsolete acl condition "demime" is removed (finally, after ten
720 years of being deprecated). The replacements are the ACLs
721 acl_smtp_mime and acl_not_smtp_mime.
722
4b0fe319
JH
723JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
724 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
725 or even an in-clear connection were permitted. Now, if the host lookup
726 was dnssec and dane was requested then the host is only used if the
727 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
728 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
729 if one fails this test.
730 This means that a poorly-configured remote DNS will make it incommunicado;
731 but it protects against a DNS-interception attack on it.
732
789f8a4f
JH
733JH/04 Bug 1810: make continued-use of an open smtp transport connection
734 non-noisy when a race steals the message being considered.
735
23bb6982 736JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 737 self-signed certificate for inbound TLS connections.
23bb6982 738
0bd1b1ed 739JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 740 in rewrites and routers.
0bd1b1ed 741
20b9a2dc
JH
742JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
743 and logged a warning sing 4.83; now they are a configuration file error.
744
05392bbc
JH
745JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
746 (lacking @domain). Apply the same qualification processing as RCPT.
747
1a6230a3
JH
748JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
749
cfab9d68
JH
750JH/10 Support ${sha256:} applied to a string (as well as the previous
751 certificate).
752
98c82a3d
JH
753JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
754 a cutthrough deliver is pending, as we always want to make a connection.
755 This also avoids re-routing the message when later placing the cutthrough
756 connection after a verify cache hit.
757 Do not update it with the verify result either.
758
759JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
760 when routing results in more than one destination address.
761
ae8386f0
JH
762JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
763 signing (which inhibits the cutthrough capability). Previously only
764 the presence of an option was tested; now an expansion evaluating as
765 empty is permissible (obviously it should depend only on data available
766 when the cutthrough connection is made).
767
0d9fa8c0
JH
768JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
769 the relevant preceding SMTP command did not note the pipelining mode.
770
3581f321
JH
771JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
772 Previously they were not counted.
773
ef3a1a30
JH
774JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
775 as one having no matching records. Previously we deferred the message
776 that needed the lookup.
777
4c04137d 778JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
779 distinguished as "(=".
780
1435d4b2
JH
781JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
782 for missing MX records. Previously it only worked for missing A records.
783
eea0defe
JB
784JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
785
786JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
787 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 788
4c04137d 789JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
790 even for a "none" policy. Patch from Tony Meyer.
791
1c788856
JH
792JH/22 Fix continued use of a connection for further deliveries. If a port was
793 specified by a router, it must also match for the delivery to be
794 compatible.
795
e3b1f624
JH
796JH/23 Bug 1874: fix continued use of a connection for further deliveries.
797 When one of the recipients of a message was unsuitable for the connection
798 (has no matching addresses), we lost track of needing to mark it
799 deferred. As a result mail would be lost.
800
a57ce043
JH
801JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
802
f59aaaaa 803JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
804 takes up less space and should be simpler to maintain. Merge the ACL
805 condition decode tables also, with similar effect.
d7bed771 806
d1f9fb42
JH
807JH/26 Fix problem with one_time used on a redirect router which returned the
808 parent address unchanged. A retry would see the parent address marked as
809 delivered, so not attempt the (identical) child. As a result mail would
810 be lost.
811
92b0827a
JH
812JH/27 Fix a possible security hole, wherein a process operating with the Exim
813 UID can gain a root shell. Credit to http://www.halfdog.net/ for
814 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
815 itself :(
816
ddf1b11a
JH
817JH/28 Enable {spool,log} filesystem space and inode checks as default.
818 Main config options check_{log,spool}_{inodes,space} are now
819 100 inodes, 10MB unless set otherwise in the configuration.
820
3cc3f762
JH
821JH/29 Fix the connection_reject log selector to apply to the connect ACL.
822 Previously it only applied to the main-section connection policy
823 options.
824
ae5afa61
JH
825JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
826
317e40ac
PP
827PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
828 by me. Added RFC7919 DH primes as an alternative.
829
8b0fb68e
PP
830PP/02 Unbreak build via pkg-config with new hash support when crypto headers
831 are not in the system include path.
832
ad7fc6eb 833JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 834 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
835 Exim did stdio operations after fclose. This was exposed by a recent
836 change which nulled out the file handle after the fclose.
ad7fc6eb 837
ee5b1e28
JH
838JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
839 signed directly by the cert-signing cert, rather than an intermediate
840 OCSP-signing cert. This is the model used by LetsEncrypt.
841
5ddc9771
JH
842JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
843
8d73599f
JH
844HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
845 an incoming connection.
846
446415f5
HSHR
847HS/02 Bug 1802: Do not half-close the connection after sending a request
848 to rspamd.
849
8e53a4fc
HSHR
850HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
851 fallback to "prime256v1".
8d042305 852
87cb4a16 853JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 854 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
855
856
0d9b78be
JH
857Exim version 4.87
858-----------------
4c57a40e 859
82d14d6a
JH
860JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
861 and 3.4.4 - once the server is enabled to respond to an OCSP request
862 it does even when not requested, resulting in a stapling non-aware
863 client dropping the TLS connection.
0d9b78be 864
6c6d6e48
TF
865TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
866 support variable-length bit vectors. No functional change.
867
ac881e27
TF
868TF/02 Improve the consistency of logging incoming and outgoing interfaces.
869 The I= interface field on outgoing lines is now after the H= remote
870 host field, same as incoming lines. There is a separate
871 outgoing_interface log selector which allows you to disable the
872 outgoing I= field.
873
c8899c20
JH
874JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
875 If not running log_selector +smtp_connection the mainlog would be held
876 open indefinitely after a "too many connections" event, including to a
877 deleted file after a log rotate. Leave the per net connection logging
878 leaving it open for efficiency as that will be quickly detected by the
879 check on the next write.
880
f1b81d81
HSHR
881HS/01 Bug 1671: Fix post transport crash.
882 Processing the wait-<transport> messages could crash the delivery
883 process if the message IDs didn't exist for some reason. When
884 using 'split_spool_directory=yes' the construction of the spool
885 file name failed already, exposing the same netto behaviour.
886
f38917cc
JH
887JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
888 mime_regex ACL conditions.
889
895fbaf2
JH
890JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
891 to DSN fail messages (bounces): remote IP, remote greeting, remote response
892 to HELO, local diagnostic string.
893
805bb5c3
JH
894JH/05 Downgrade message for a TLS-certificate-based authentication fail from
895 log line to debug. Even when configured with a tls authenticator many
896 client connections are expected to not authenticate in this way, so
897 an authenticate fail is not an error.
898
56c2a7be
HSHR
899HS/02 Add the Exim version string to the process info. This way exiwhat
900 gives some more detail about the running daemon.
901
4c04137d 902JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
903 matter for fast-change records such as DNSBLs.
904
6f6dedcc
JH
905JH/07 Bug 1678: Always record an interface option value, if set, as part of a
906 retry record, even if constant. There may be multiple transports with
907 different interface settings and the retry behaviour needs to be kept
908 distinct.
909
0f557e90
JH
910JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
911
912JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
913
ec0eb1a3
JH
914JH/10 Bug 840: fix log_defer_output option of pipe transport
915
41e93589
JH
916JH/11 Bug 830: use same host for all RCPTS of a message, even under
917 hosts_randomize. This matters a lot when combined with mua_wrapper.
918
98b98887 919JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
920 ${quote_pgsql:<string>} operator.
921
98b98887
JH
922JH/13 Bug 1708: avoid misaligned access in cached lookup.
923
858e91c2
JH
924JH/14 Change header file name for freeradius-client. Relevant if compiling
925 with Radius support; from the Gentoo tree and checked under Fedora.
926
927JH/15 Bug 1712: Introduce $prdr_requested flag variable
928
6ff55e50
JH
929JH/16 Bug 1714: Permit an empty string as expansion result for transport
930 option transport_filter, meaning no filtering.
931
3b957582
JB
932JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
933
23f3dc67
JH
934JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
935 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 936 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
937 If a server certificate is not supplied (via tls_certificate) an error is
938 logged, and clients will find TLS connections fail on startup. Presumably
939 they will retry in-clear.
940 Packagers of Exim are strongly encouraged to create a server certificate
941 at installation time.
942
240c288f
JH
943HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
944 with the $config_file variable.
945
5ef5dd52
JB
946JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
947 in transport context, after the attempt, and per-recipient. The latter type
948 is per host attempted. The event data is the error message, and the errno
949 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 950 and the trailing two digits of the smtp 4xx response.
5ef5dd52 951
e161710d
GF
952GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
953 to write to mainlog (or rejectlog, paniclog) in the window between file
954 creation and permissions/ownership being changed. Particularly affects
955 installations where exicyclog is run as root, rather than exim user;
956 result is that the running daemon panics and dies.
957
a159f203
JH
958JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
959
7f06582c
JH
960JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
961 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
962 "pri" and "weight". Note that the previous implicit priority given by the
963 list order is no longer honoured.
964
4c04137d 965JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
966 for DKIM processing.
967
f0989ec0
JH
968JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
969 by defining SUPPORT_SOCKS.
74f150bf 970
cee5f132
JH
971JH/26 Move PROXY support from Experimental to mainline, enabled for a build
972 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
973 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
974 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 975
8c5d388a
JH
976JH/27 Move Internationalisation support from Experimental to mainline, enabled
977 for a build by defining SUPPORT_I18N
978
2d8d625b
JH
979JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
980 of the query string, and make ${quote_redis:} do that quoting.
981
0cbf2b82
JH
982JH/29 Move Events support from Experimental to mainline, enabled by default
983 and removable for a build by defining DISABLE_EVENT.
984
f2f2c91b
JH
985JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
986
ce325893
JH
987JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
988 cached by the daemon.
989
de78e2d5
JH
990JH/32 Move Redis support from Experimental to mainline, enabled for a build
991 by defining LOOKUP_REDIS. The libhiredis library is required.
992
379ba7d0
JH
993JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
994 keys are given for lookup.
995
f444c2c7
JH
996JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
997 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
998 only supported when built with TLS support. The PolarSSL SHA routines
999 are still used when the TLS library is too old for convenient support.
f444c2c7 1000
a57b6200
JH
1001JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
1002 openssl_options), for security. OpenSSL forces this from version 1.1.0
1003 server-side so match that on older versions.
1004
07c73177 1005JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1006 allocation for $value could be released as the expansion processing
07c73177 1007 concluded, but leaving the global pointer active for it.
fa01e4f8 1008
4f6ae5c3
JH
1009JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1010 and to use the domains and local_parts ACL conditions.
1011
1bc460a6
JH
1012JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1013 incorrectly not doubled on cutthrough transmission, hence seen as a
1014 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1015 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1016 via the normal store-and-forward channel. This could result in duplicates
1017 received - but deduplicating mailstores were liable to retain only the
1018 initial truncated version.
1019
ab9152ff 1020JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1021
67e87fcf
JH
1022JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1023
ab9152ff
JH
1024JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1025 we're in there, support oversigning also; bug 1309.
1026
af483912
JH
1027JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1028
bc3c7bb7 1029HS/04 Add support for keep_environment and add_environment options.
df3def24 1030
13559da6
JH
1031JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1032 either intentional arithmetic overflow during PRNG, or testing config-
1033 induced overflows.
1034
59eaad2b
JH
1035JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1036 delivery resulted in actual delivery. Cancel cutthrough before DATA
1037 stage.
1038
f9334a28
JH
1039JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1040 rejects a recipient: pass the reject to the originator.
1041
dc8091e7
JH
1042JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1043 Many were false-positives and ignorable, but it's worth fixing the
1044 former class.
1045
dfe7d917
JH
1046JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1047 for the new environment-manipulation done at startup. Move the routines
1048 from being local to tls.c to being global via the os.c file.
1049
93cc2d6e
JH
1050JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1051 an extract embedded as result-arg for a map, the first arg for extract
1052 is unavailable so we cannot tell if this is a numbered or keyed
1053 extraction. Accept either.
1054
13559da6 1055
9c695f6d
JH
1056Exim version 4.86
1057-----------------
4c57a40e 1058
9c695f6d
JH
1059JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1060 expanded.
1061
506900af
JH
1062JH/02 The smtp transport option "multi_domain" is now expanded.
1063
ad07e9ad
JH
1064JH/03 The smtp transport now requests PRDR by default, if the server offers
1065 it.
1066
01a4a5c5 1067JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1068 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1069 can be used to disable this per-host. The build option
1070 EXPERIMENTAL_CERTNAMES is withdrawn.
1071
cb1d7830 1072JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1073 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1074 For GnuTLS, only version 3.0.20 or later.
1075
610ff438 1076JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1077 (but not required) by default. The verification status is now logged by
1078 default, for both outbound TLS and client-certificate supplying inbound
1079 TLS connections
610ff438 1080
f926e272
JH
1081JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1082 sites use this now.
1083
50dc7409
JH
1084JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1085 Status Notification (bounce) messages are now MIME format per RFC 3464.
1086 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1087 under the control of the dsn_advertise_hosts option, and routers may
1088 have a dsn_lasthop option.
1089
0f0c8159
JH
1090JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1091 default, modifiable by a malware= option. The list separator for
23763898 1092 the options can now be changed in the usual way. Bug 68.
4e71661f 1093
1ad6489e
JH
1094JH/10 The smtp_receive_timeout main option is now expanded before use.
1095
aeaf5db3
JH
1096JH/11 The incoming_interface log option now also enables logging of the
1097 local interface on delivery outgoing connections.
1098
5032d1cf
JH
1099JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1100 if the interface and destination host and port all match.
1101
7e8360e6
JH
1102JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1103 /defer_ok option.
1104
c5f280e2
AL
1105JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1106 Patch from Andrew Lewis.
1107
fd4d8871 1108JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1109 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1110 modifiers per server. Patch originally by <rommer@active.by>.
1111
1112JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1113 and remote servers. Remote servers can be IPv6 addresses, and
1114 specify a port-range.
fd4d8871 1115
23763898
JH
1116JH/17 Bug 68: The spamd_address main option now supports an optional
1117 timeout value per server.
1118
2ad78978
JH
1119JH/18 Bug 1581: Router and transport options headers_add/remove can
1120 now have the list separator specified.
1121
8a512ed5 1122JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1123 option values.
8a512ed5 1124
82c0c8ea 1125JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1126 under OpenSSL.
1127
cc00f4af
JH
1128JH/21 Support for the A6 type of dns record is withdrawn.
1129
82c0c8ea
JH
1130JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1131 rather than the verbs used.
1132
b980ed83
JH
1133JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1134 from 255 to 1024 chars.
1135
6c9ed72e
JH
1136JH/24 Verification callouts now attempt to use TLS by default.
1137
cfab9d68 1138HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1139 are generic router options now. The defaults didn't change.
50dc7409 1140
f846c8f5
JH
1141JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1142 Original patch from Alexander Shikoff, worked over by JH.
1143
fd4c285c
HSHR
1144HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1145 files if ZCAT_COMMAND is not executable.
1146
4c04137d 1147JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1148
d2a2c69b
JH
1149JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1150
8241d8dd
JH
1151JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1152 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1153 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1154 (and we were inconsistent anyway for A-only vs AAAA+A).
1155
1f12df4d
JH
1156JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1157
1f155f8e
JH
1158JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1159 when evaluating $sender_host_dnssec.
1160
1705dd20
JH
1161JH/31 Check the HELO verification lookup for DNSSEC, adding new
1162 $sender_helo_dnssec variable.
1163
038597d2
PP
1164JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1165
474f71bf
JH
1166JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1167
7137ca4b
JH
1168JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1169
dcb1095c
JH
1170JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1171 documented as working, but never had. Support all but $spam_report.
1172
2f460950
JH
1173JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1174 added for tls authenticator.
1175
2f680c0c
HSHR
1176HS/03 Add perl_taintmode main config option
1177
9c695f6d 1178
e449c3b0
TL
1179Exim version 4.85
1180-----------------
4c57a40e 1181
e449c3b0
TL
1182TL/01 When running the test suite, the README says that variables such as
1183 no_msglog_check are global and can be placed anywhere in a specific
1184 test's script, however it was observed that placement needed to be near
1185 the beginning for it to behave that way. Changed the runtest perl
1186 script to read through the entire script once to detect and set these
1187 variables, reset to the beginning of the script, and then run through
1188 the script parsing/test process like normal.
1189
ac20058f
TL
1190TL/02 The BSD's have an arc4random API. One of the functions to induce
1191 adding randomness was arc4random_stir(), but it has been removed in
1192 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1193 function when detected.
1194
a9b8ec8b
JH
1195JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1196 cause callback expansion.
1197
6286d7c4
TL
1198TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1199 syntax errors in an expansion can be treated as a string instead of
1200 logging or causing an error, due to the internal use of bool_lax
1201 instead of bool when processing it.
1202
0f06b4f2 1203JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1204 server certificates when making smtp deliveries.
1205
be36e572
JH
1206JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1207
ac4ef9bd
JH
1208JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1209
0eb51736
TL
1210TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1211
c713ca4b
TL
1212TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1213 Merged patch from Sebastian Wiedenroth.
e449c3b0 1214
bd21a787
WB
1215JH/05 Fix results-pipe from transport process. Several recipients, combined
1216 with certificate use, exposed issues where response data items split
1217 over buffer boundaries were not parsed properly. This eventually
1218 resulted in duplicates being sent. This issue only became common enough
4c04137d 1219 to notice due to the introduction of connection certificate information,
bd21a787
WB
1220 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1221
8bc732e8
JH
1222JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1223 size buffer was used, resulting in syntax errors when an expansion
1224 exceeded it.
1225
a7fec7a7
JH
1226JH/07 Add support for directories of certificates when compiled with a GnuTLS
1227 version 3.3.6 or later.
1228
4c04137d 1229JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1230 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1231 both become "event_action", the variables become $event_name, $event_data
aec45841 1232 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1233 routers, transports and related events. The tls:cert event is now also
1234 raised for inbound connections, if the main configuration event_action
1235 option is defined.
774ef2d7 1236
eca4debb
TL
1237TL/06 In test suite, disable OCSP for old versions of openssl which contained
1238 early OCSP support, but no stapling (appears to be less than 1.0.0).
1239
8d692470
JH
1240JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1241 server certificate names available under the smtp transport option
1242 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1243 matches.
1244
e9477a08
JH
1245JH/10 Time-related extraction expansions from certificates now use the main
1246 option "timezone" setting for output formatting, and are consistent
1247 between OpenSSL and GnuTLS compilations. Bug 1541.
1248
ad4c5ff9
JH
1249JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1250 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1251
1252JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1253 include certificate info, eximon was claiming there were spoolfile
1254 syntax errors.
1255
3394b36a 1256JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1257
1258JH/14 Log delivery-related information more consistently, using the sequence
1259 "H=<name> [<ip>]" wherever possible.
1260
3394b36a
TL
1261TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1262 are problematic for Debian distribution, omit them from the release
1263 tarball.
1264
ad4c5ff9
JH
1265JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1266
4c04137d 1267JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1268 Bug 1561.
1269
1270JH/17 Fix a null-indirection in certextract expansions when a nondefault
1271 output list separator was used.
1272
8bc732e8 1273
1f0ebb98
TL
1274Exim version 4.84
1275-----------------
09728d20
TL
1276TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1277 checkers that were complaining about end of non-void function with no
1278 return.
1f0ebb98 1279
a612424f 1280JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1281 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1282
1283JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1284
1285TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1286 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1287
1f0ebb98 1288
c0e56233
TF
1289Exim version 4.83
1290-----------------
1291
1292TF/01 Correctly close the server side of TLS when forking for delivery.
1293
1294 When a message was received over SMTP with TLS, Exim failed to clear up
1295 the incoming connection properly after forking off the child process to
1296 deliver the message. In some situations the subsequent outgoing
1297 delivery connection happened to have the same fd number as the incoming
1298 connection previously had. Exim would try to use TLS and fail, logging
1299 a "Bad file descriptor" error.
1300
7245734e
TF
1301TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1302 utilities have not been installed.
1303
fd5dad68
JH
1304JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1305 temporary space as the ACL may create new global variables.
1306
5428a946
TL
1307TL/01 LDAP support uses per connection or global context settings, depending
1308 upon the detected version of the libraries at build time.
1309
a3c86431
TL
1310TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1311 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1312 were a direct connection from the outside internet. PPv2 support was
1313 updated based on HAProxy spec change in May 2014.
a3c86431 1314
aa26e137
JH
1315JH/02 Add ${listextract {number}{list}{success}{fail}}.
1316
5a1b8443
WB
1317TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1318 Properly escape header and check for NULL return.
1319
72c9e342
PP
1320PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1321 not dns_use_dnssec.
1322
76f44207
WB
1323JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1324
770747fd
MFM
1325TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1326 characters in header names, implemented as a verify condition.
1327 Contributed by Michael Fischer v. Mollard.
1328
8ddef691 1329TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1330 results permerror and temperror. Previous values are deprecated but
1331 still accepted. In a future release, err_perm and err_temp will be
1332 completely removed, which will be a backward incompatibility if the
1333 ACL tests for either of these two old results. Patch contributed by
8ddef691 1334 user bes-internal on the mailing list.
c0e56233 1335
b9c2e32f
AR
1336JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1337
e45a1c37
JH
1338JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1339 selectors, in both main and reject logs.
1340
67d81c10
JH
1341JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1342 failed delivery.
1343
b1f8e4f8
JH
1344JH/07 Add malware type "sock" for talking to simple daemon.
1345
511a6c14 1346JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1347
1348JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1349 routers/transports under cutthrough routing.
214042d2 1350
51c7471d
JH
1351JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1352 numbers. Touch up "bool" conditional to keep the same definition.
1353
3695be34
TL
1354TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1355
1e06383a
TL
1356JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1357
76146973
JH
1358JH/12 Expand items in router/transport headers_add or headers_remove lists
1359 individually rather than the list as a whole. Bug 1452.
1360
1361 Required for reasonable handling of multiple headers_ options when
1362 they may be empty; requires that headers_remove items with embedded
1363 colons must have them doubled (or the list-separator changed).
1364
8c8b8274
TL
1365TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1366 view the policy declared in the DMARC record. Currently, $dmarc_status
1367 is a combined value of both the record presence and the result of the
1368 analysis.
b1f8e4f8 1369
35aba663
JH
1370JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1371
8c51eead 1372JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1373 dnslookup router and the smtp transport (applying to the forward
1374 lookup).
8c51eead 1375
deae092e
HS
1376TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1377 of ldap servers used for a specific lookup. Patch provided by Heiko
1378 Schlichting.
35aba663 1379
fd3b6a4a 1380JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1381 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1382
8d91c6dc
LT
1383TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1384 Patch submitted by Lars Timman.
1385
2b4a568d
JH
1386JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1387
d2af03f4
HS
1388TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1389 Requires trusted mode and valid format message id, aborts otherwise.
1390 Patch contributed by Heiko Schlichting.
1391
9d1c15ef
JH
1392JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1393 certextract with support for various fields. Bug 1358.
1394
44662487
JH
1395JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1396 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1397 hosts_request_ocsp.
1398
ed3bba5f 1399JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1400 operate on certificate variables to give certificate fingerprints
9ef9101c 1401 Also new ${sha256:cert_variable}.
44662487 1402
8ccd00b1
JH
1403JH/23 The PRDR feature is moved from being Experimental into the mainline.
1404
8ded8589
TL
1405TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1406 Christian Aistleitner.
1407
f2de3a33
JH
1408JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1409
6eb02f88
TL
1410TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1411 file. Patch from Wolfgang Breyha.
1412
00bff6f6
JH
1413JH/25 Expand the coverage of the delivery $host and $host_address to
1414 client authenticators run in verify callout. Bug 1476.
1415
071c51f7
JH
1416JH/26 Port service names are now accepted for tls_on_connect_ports, to
1417 align with daemon_smtp_ports. Bug 72.
1418
a6d4c44e
TF
1419TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1420 support and error reporting did not work properly.
1421
3ae173e7
ACK
1422TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1423 and is readable. Patch from Andrew Colin Kissa.
1424
c13d09b8
TL
1425TL/14 Enhance documentation of ${run expansion and how it parses the
1426 commandline after expansion, particularly in the case when an
1427 unquoted variable expansion results in an empty value.
1428
0df4ab80
JH
1429JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1430
66be95e0
PP
1431PP/02 Fix internal collision of T_APL on systems which support RFC3123
1432 by renaming away from it. Addresses GH issue 15, reported by
1433 Jasper Wallace.
1434
1bd0d12b
JH
1435JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1436
0de7239e
TL
1437TL/15 SECURITY: prevent double expansion in math comparison functions
1438 (can expand unsanitized data). Not remotely exploitable.
1439 CVE-2014-2972
1440
fd3b6a4a 1441
2c422e6f 1442Exim version 4.82
98a90c36
PP
1443-----------------
1444
1445PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1446
12f69989
PP
1447PP/02 Make -n do something, by making it not do something.
1448 When combined with -bP, the name of an option is not output.
1449
54c90be1
PP
1450PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1451 by GnuTLS.
1452
1f4a55da
PP
1453PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1454 $sender_host_name and config options to manage this, and basic check
1455 routines.
1456
13363eba 1457PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1458
66645890 1459PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1460 (Only plugin which currently uses this is kerberos4, which nobody should
1461 be using, but we should make it available and other future plugins might
1462 conceivably use it, even though it would break NAT; stuff *should* be
1463 using channel bindings instead).
66645890 1464
a3fb9793 1465PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1466 name; added for Sendmail compatibility; requires admin caller.
1467 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1468 just ignore it); requires trusted caller.
a3fb9793 1469 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1470 Bugzilla 1117.
a3fb9793 1471
d27f98fe 1472TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1473
6822b909
TL
1474TL/02 Add +smtp_confirmation as a default logging option.
1475
e7568d51
TL
1476TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1477 Patch by Magnus Holmgren from 2007-02-20.
1478
ae0e32ee 1479TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1480 Bugzilla 1283 - Spec typo.
97f42f10 1481 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1482
1483TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1484
e2658fff
TL
1485TL/06 Add Experimental DMARC support using libopendmarc libraries.
1486
83712b39
TL
1487TL/07 Fix an out of order global option causing a segfault. Reported to dev
1488 mailing list by by Dmitry Isaikin.
1489
976b7e9f
JH
1490JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1491
be4a1376
JH
1492JH/02 Support "G" suffix to numbers in ${if comparisons.
1493
ec4b68e5
PP
1494PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1495
d7148a07
NM
1496NM/01 Bugzilla 1197 - Spec typo
1497 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1498
585121e2 1499JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1500
2519e60d
TL
1501PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1502 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1503 function.
a5f239e4 1504
13d08c90
PP
1505PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1506 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1507
bef3ea7f
JH
1508JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1509 "acl {{name}{arg}...}", and optional args on acl condition
1510 "acl = name arg..."
a5f239e4 1511
846726c5
JH
1512JH/05 Permit multiple router/transport headers_add/remove lines.
1513
3a796370
JH
1514JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1515
ea722490 1516JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1517 Performance patch from Paul Fisher. Bugzilla 1262.
1518
b1b05573
JH
1519JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1520 Bugzilla 884.
1521
362145b5
JH
1522JH/09 Add $headers_added variable, with content from use of ACL modifier
1523 add_header (but not yet added to the message). Bugzilla 199.
1524
3c0a92dc
JH
1525JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1526 Pulled from Bugzilla 817 by Wolfgang Breyha.
1527
6d7c6175
PP
1528PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1529 CVE-2012-5671
e78e6ecf 1530 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1531
6f123593
JH
1532JH/11 Add A= logging on delivery lines, and a client_set_id option on
1533 authenticators.
1534
c8e2fc1e
JH
1535JH/12 Add optional authenticated_sender logging to A= and a log_selector
1536 for control.
1537
005ac57f
PP
1538PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1539
3f1df0e3
PP
1540PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1541 advertise SMTP AUTH mechanism to us, instead of a generic
1542 protocol violation error. Also, make Exim more robust to bad
1543 data from the Dovecot auth socket.
1544
67bd1ab3
TF
1545TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1546
1547 When a queue runner is handling a message, Exim first routes the
1548 recipient addresses, during which it prunes them based on the retry
1549 hints database. After that it attempts to deliver the message to
1550 any remaining recipients. It then updates the hints database using
1551 the retry rules.
1552
1553 So if a recipient address works intermittently, it can get repeatedly
1554 deferred at routing time. The retry hints record remains fresh so the
1555 address never reaches the final cutoff time.
1556
1557 This is a fairly common occurrence when a user is bumping up against
1558 their storage quota. Exim had some logic in its local delivery code
1559 to deal with this. However it did not apply to per-recipient defers
1560 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1561
1ddeb334
TF
1562 This change adds a proper retry rule check during routing so that the
1563 final cutoff time is checked against the message's age. We only do
1564 this check if there is an address retry record and there is not a
1565 domain retry record; this implies that previous attempts to handle
1566 the address had the retry_use_local_parts option turned on. We use
1567 this as an approximation for the destination being like a local
1568 delivery, as in LMTP.
67bd1ab3
TF
1569
1570 I suspect this new check makes the old local delivery cutoff check
1571 redundant, but I have not verified this so I left the code in place.
1572
326cdc37
TF
1573TF/02 Correct gecos expansion when From: is a prefix of the username.
1574
1575 Test 0254 submits a message to Exim with the header
1576
1577 Resent-From: f
1578
1579 When I ran the test suite under the user fanf2, Exim expanded
1580 the header to contain my full name, whereas it should have added
1581 a Resent-Sender: header. It erroneously treats any prefix of the
1582 username as equal to the username.
1583
1584 This change corrects that bug.
1585
f62514b3
GF
1586GF/01 DCC debug and logging tidyup
1587 Error conditions log to paniclog rather than rejectlog.
1588 Debug lines prefixed by "DCC: " to remove any ambiguity.
1589
eb505532
TF
1590TF/03 Avoid unnecessary rebuilds of lookup-related code.
1591
14c7b357
PP
1592PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1593 Bug spotted by Jeremy Harris; was flawed since initial commit.
1594 Would have resulted in OCSP responses post-SNI triggering an Exim
1595 NULL dereference and crash.
1596
94eaf700
PP
1597JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1598
6f5a440a
PP
1599PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1600 Bug detection, analysis and fix by Samuel Thibault.
1601 Bugzilla 1331, Debian bug #698092.
1602
514ee161
SC
1603SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1604
fd98a5c6
JH
1605JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1606 Server implementation by Todd Lyons, client by JH.
1607 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1608 config variable "prdr_enable" controls whether the server
1609 advertises the facility. If the client requests PRDR a new
1610 acl_data_smtp_prdr ACL is called once for each recipient, after
1611 the body content is received and before the acl_smtp_data ACL.
4c04137d 1612 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1613 on the smtp transport, and the server advertisement.
1614 Default client logging of deliveries and rejections involving
1615 PRDR are flagged with the string "PRDR".
1616
035c7f1e
PP
1617PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1618 fclose(). Diagnosis by Todd Lyons.
1619
ff284120
PP
1620PP/17 Update configure.default to handle IPv6 localhost better.
1621 Patch by Alain Williams (plus minor tweaks).
1622 Bugzilla 880.
1623
26e72755
PP
1624PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1625 This is now consistent with GnuTLS, and is now documented: the
1626 previous undocumented portable approach to treating the option as
1627 unset was to force an expansion failure. That still works, and
1628 an empty string is now equivalent.
1629
0fbd9bff
PP
1630PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1631 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1632 not performing validation itself.
1633
700d22f3
PP
1634PP/20 Added force_command boolean option to pipe transport.
1635 Patch from Nick Koston, of cPanel Inc.
1636
fcc8e047
JH
1637JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1638 Bugzilla 321, 823.
1639
4c04137d 1640TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1641
8c020188
PP
1642PP/21 Fix eximon continuous updating with timestamped log-files.
1643 Broken in a format-string cleanup in 4.80, missed when I repaired the
1644 other false fix of the same issue.
1645 Report and fix from Heiko Schlichting.
1646 Bugzilla 1363.
1647
d13cdd30
PP
1648PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1649 Report from Prashanth Katuri.
1650
e2fbf4a2
PP
1651PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1652 It's SecureTransport, so affects any MacOS clients which use the
1653 system-integrated TLS libraries, including email clients.
1654
f4c1088b
PP
1655PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1656 using a MIME ACL for non-SMTP local injection.
1657 Report and assistance in diagnosis by Warren Baker.
1658
c5c2182f
PP
1659TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1660
73431ca9
JH
1661JH/16 Fix comparisons for 64b. Bugzilla 1385.
1662
2d07a215
TL
1663TL/09 Add expansion variable $authenticated_fail_id to keep track of
1664 last id that failed so it may be referenced in subsequent ACL's.
1665
a30a8861
TL
1666TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1667 Alexander Miroch.
1668
33382dd9
TL
1669TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1670 ldap library initialization, allowing self-signed CA's to be
1671 used. Also properly sets require_cert option later in code by
1672 using NULL (global ldap config) instead of ldap handle (per
1673 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1674
046172e6
TL
1675TL/12 Enhanced documentation in the ratelimit.pl script provided in
1676 the src/util/ subdirectory.
1677
581d7bee 1678TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1679 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1680 EXPERIMENTAL_TPDA.
1681
1682TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1683 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1684 redis_servers = needs to be configured which will be used by the redis
1685 lookup. Patch from Warren Baker, of The Packet Hub.
1686
237b2cf2
TL
1687TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1688
9fc5a352
TL
1689TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1690 hostname or reverse DNS when processing a host list. Used suggestions
1691 from multiple comments on this bug.
1a7b746d 1692
b10e4ec2
TL
1693TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1694
e2cebd74
TL
1695TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1696 Missed a few lines, added it to make the runtest require no keyboard
1697 interaction.
1698
1699TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1700 contains upper case chars. Make router use caseful_local_part.
1701
2519e60d
TL
1702TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1703 support when GnuTLS has been built with p11-kit.
1704
e78e6ecf 1705
4263f395
PP
1706Exim version 4.80.1
1707-------------------
1708
1709PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1710 CVE-2012-5671
2c422e6f 1711 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1712
ea722490 1713
b1770b6e 1714Exim version 4.80
0599f9cf
PP
1715-----------------
1716
1717PP/01 Handle short writes when writing local log-files.
1718 In practice, only affects FreeBSD (8 onwards).
1719 Bugzilla 1053, with thanks to Dmitry Isaikin.
1720
23c7e742
NM
1721NM/01 Bugzilla 949 - Documentation tweak
1722
b322aac8
NM
1723NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1724 improved.
1725
4a891427
NM
1726NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1727
c1e794ba 1728PP/02 Implemented gsasl authenticator.
b322aac8 1729
97753960
PP
1730PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1731
1732PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1733 `pkg-config foo` for cflags/libs.
1734
df6303fa
PP
1735PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1736 with rest of GSASL and with heimdal_gssapi.
1737
7e6a8985
PP
1738PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1739 `pkg-config foo` for cflags/libs for the TLS implementation.
1740
f1e05cc7 1741PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1742 properties get this fed in as external SSF. A number of robustness
1743 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1744
4c287009
PP
1745PP/08 cyrus_sasl server now expands the server_realm option.
1746
b98bb9ac
PP
1747PP/09 Bugzilla 1214 - Log authentication information in reject log.
1748 Patch by Jeremy Harris.
1749
4a6a987a
PP
1750PP/10 Added dbmjz lookup type.
1751
c45dd180 1752PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1753
7db8d074
PP
1754PP/12 MAIL args handles TAB as well as SP, for better interop with
1755 non-compliant senders.
1756 Analysis and variant patch by Todd Lyons.
1757
eae0036b 1758NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1759 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1760 Patch from Dirk Mueller <dmueller@suse.com>
1761
dec5017e
PP
1762PP/13 tls_peerdn now print-escaped for spool files.
1763 Observed some $tls_peerdn in wild which contained \n, which resulted
1764 in spool file corruption.
1765
c80c5570
PP
1766PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1767 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1768 or write after TLS renegotiation, which otherwise led to messages
1769 "Got SSL error 2".
1770
076b11e2
PP
1771TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1772 as a tracking header (ie: a signed header comes before the signature).
1773 Patch from Wolfgang Breyha.
1774
5407bfff
JH
1775JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1776 comma-sep list; embedded commas doubled.
1777
9e45c72b
PP
1778JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1779
e74376d8
PP
1780PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1781 diagnostics.
1782 Report and patch from Dmitry Banschikov.
1783
4c04137d 1784PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1785 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1786 failures. We appear to now support TLS1.1+ with Exim.
1787
7be682ca
PP
1788PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1789 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1790 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1791 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1792
ef840681
PP
1793PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1794 NULL dereference. Report and patch from Alun Jones.
1795
5bfb4cdf
PP
1796PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1797 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1798 Not seeing resolver debug output on NetBSD, but suspect this is a
1799 resolver implementation change.
1800
c6e95d22
PP
1801PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1802 Left warnings. Added "eximon gdb" invocation mode.
1803
9cbad13b
PP
1804PP/21 Defaulting "accept_8bitmime" to true, not false.
1805
9ee44efb
PP
1806PP/22 Added -bw for inetd wait mode support.
1807
6a6084f8
PP
1808PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1809 locate the relevant includes and libraries. Made this the default.
1810
12dd53c7
PP
1811PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1812 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1813
9e45c72b 1814JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1815 This may cause build issues on older platforms.
1816
17c76198
PP
1817PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1818 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1819 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1820 Added SNI support via GnuTLS too.
af3498d6 1821 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1822
53947857 1823PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1824
eae0036b 1825PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1826 Applied second patch from Janne, implementing suggestion to default
1827 multiple-strings-in-record handling to match SPF spec.
eae0036b 1828
9e45c72b 1829JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1830
7390e768
PP
1831PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1832 read-only, out of scope).
1833 Patch from Wolfgang Breyha, report from Stuart Northfield.
1834
08488c86
PP
1835PP/29 Fix three issues highlighted by clang analyser static analysis.
1836 Only crash-plausible issue would require the Cambridge-specific
1837 iplookup router and a misconfiguration.
1838 Report from Marcin Mirosław.
1839
6475bd82
PP
1840PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1841
81f91683
PP
1842PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1843 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1844 As part of this, removing so much warning spew let me fix some minor
1845 real issues in debug logging.
1846
5779e6aa
PP
1847PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1848 assignment on my part. Fixed.
1849
3375e053
PP
1850PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1851 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1852 Janne Snabb (who went above and beyond: thank you).
1853
1854PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1855 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1856 relatively easy to get wrong. Should also expose TLS library linkage
1857 problems.
3375e053 1858
9d26b8c0
PP
1859PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1860 64-bit ${eval} (JH/03).
1861
57eb9e91 1862PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1863 GNU libc to support some of the 64-bit stuff, should not lead to
1864 conflicts. Defined before os.h is pulled in, so if a given platform
1865 needs to override this, it can.
1866
16880d1a
PP
1867PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1868 protection layer was required, which is not implemented.
1869 Bugzilla 1254, patch from Wolfgang Breyha.
1870
a799883d
PP
1871PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1872 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1873 tls_dhparam take prime identifiers. Also unbreak combination of
1874 OpenSSL+DH_params+TLSSNI.
1875
3ecab157 1876PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1877
0599f9cf 1878
867fcbf5
PP
1879Exim version 4.77
1880-----------------
1881
1882PP/01 Solaris build fix for Oracle's LDAP libraries.
1883 Bugzilla 1109, patch from Stephen Usher.
1884
f1a29782
TF
1885TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1886
ab42bd23
TK
1887TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1888 whitespace trailer
867fcbf5 1889
0ca0cf52
TF
1890TF/02 Fix a couple more cases where we did not log the error message
1891 when unlink() failed. See also change 4.74-TF/03.
1892
921b12ca
TF
1893TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1894 lock up or crash if it happened to be inside a call to libc when it
1895 got a SIGUSR1 from exiwhat.
1896
1897 The SIGUSR1 handler appends the current process status to the process
1898 log which is later printed by exiwhat. It used to use the general
1899 purpose logging code to do this, but several functions it calls are
1900 not safe for signals.
1901
1902 The new output code in the SIGUSR1 handler is specific to the process
1903 log, and simple enough that it's easy to inspect for signal safety.
1904 Removing some special cases also simplifies the general logging code.
1905 Removing the spurious timestamps from the process log simplifies
1906 exiwhat.
1907
c99ce5c9
TF
1908TF/04 Improved ratelimit ACL condition.
1909
1910 The /noupdate option has been deprecated in favour of /readonly which
1911 has clearer semantics. The /leaky, /strict, and /readonly update modes
1912 are mutually exclusive. The update mode is no longer included in the
1913 database key; it just determines when the database is updated. (This
4c04137d 1914 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1915
1916 Exim now checks that the per_* options are used with an update mode that
1917 makes sense for the current ACL. For example, when Exim is processing a
1918 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1919 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1920 must specify per_mail/readonly. If you omit the update mode it defaults to
1921 /leaky where that makes sense (as before) or /readonly where required.
1922
1923 The /noupdate option is now undocumented but still supported for
1924 backwards compatibility. It is equivalent to /readonly except that in
1925 ACLs where /readonly is required you may specify /leaky/noupdate or
1926 /strict/noupdate which are treated the same as /readonly.
1927
1928 A useful new feature is the /count= option. This is a generalization
1929 of the per_byte option, so that you can measure the throughput of other
1930 aggregate values. For example, the per_byte option is now equivalent
1931 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1932
1933 The per_rcpt option has been generalized using the /count= mechanism
1934 (though it's more complicated than the per_byte equivalence). When it is
1935 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1936 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1937 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1938 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1939 Note that using per_rcpt with a non-readonly update mode in more than
1940 one ACL will cause the recipients to be double-counted. (The per_mail
1941 and per_byte options don't have this problem.)
1942
1943 The handling of very low rates has changed slightly. If the computed rate
1944 is less than the event's count (usually one) then this event is the first
1945 after a long gap. In this case the rate is set to the same as this event's
1946 count, so that the first message of a spam run is counted properly.
1947
1948 The major new feature is a mechanism for counting the rate of unique
1949 events. The new per_addr option counts the number of different
1950 recipients that someone has sent messages to in the last time period. It
1951 behaves like per_rcpt if all the recipient addresses are different, but
1952 duplicate recipient addresses do not increase the measured rate. Like
1953 the /count= option this is a general mechanism, so the per_addr option
1954 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1955 example, measure the rate that a client uses different sender addresses
1956 with the options per_mail/unique=$sender_address. There are further
1957 details in the main documentation.
1958
3634fc25
TF
1959TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1960
792e8a19
TF
1961TF/06 Removed a few PCRE remnants.
1962
5901f0ab
TF
1963TF/07 Automatically extract Exim's version number from tags in the git
1964 repository when doing development or release builds.
1965
7f2a2a43
PP
1966PP/02 Raise smtp_cmd_buffer_size to 16kB.
1967 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1968
061b7ebd
PP
1969PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1970 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1971 Bugzilla 97.
1972
e12f8c32
PP
1973PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1974
9e949f00 1975PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1976 Bugzilla 1078. Patch from John Horne.
1977
1978PP/06 Stop make process more reliably on build failure.
1979 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1980
555ae6af 1981PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1982 Bugzilla 1089. Patch from Heiko Schlittermann.
1983
1984PP/08 Handle ${run} returning more data than OS pipe buffer size.
1985 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1986
6f7fe114
PP
1987PP/09 Handle IPv6 addresses with SPF.
1988 Bugzilla 860. Patch from Wolfgang Breyha.
1989
c566dd90
PP
1990PP/10 GnuTLS: support TLS 1.2 & 1.1.
1991 Bugzilla 1156.
89f897c3
PP
1992 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1993 Bugzilla 1095.
c566dd90 1994
d6cc7c78 1995PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1996 New compile-time build option, EXPAND_LISTMATCH_RHS.
1997 New expansion conditions, "inlist", "inlisti".
1998
0d0e4455
PP
1999PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
2000
3399bb60 2001PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
2002
2003PP/14 fix log_write() format string regression from TF/03.
2004 Bugzilla 1152. Patch from Dmitry Isaikin.
2005
0ca0cf52 2006
10906672
PP
2007Exim version 4.76
2008-----------------
2009
2010PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2011
754a0503
PP
2012PP/02 Harmonised TLS library version reporting; only show if debugging.
2013 Layout now matches that introduced for other libraries in 4.74 PP/03.
2014
c0c7b2da
PP
2015PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2016
e97d1f08
PP
2017PP/04 New "dns_use_edns0" global option.
2018
084c1d8c
PP
2019PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2020 Bugzilla 1098.
2021
4e7ee012
PP
2022PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2023 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2024
c8d52a00
PP
2025TK/01 Updated PolarSSL code to 0.14.2.
2026 Bugzilla 1097. Patch from Andreas Metzler.
2027
54e7ce4a
PP
2028PP/07 Catch divide-by-zero in ${eval:...}.
2029 Fixes bugzilla 1102.
2030
5ee6f336
PP
2031PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2032 Bugzilla 1104.
2033
c8d52a00 2034TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2035 format-string attack -- SECURITY: remote arbitrary code execution.
2036
2037TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2038 time unintentionally subject to list matching rules, letting the header
2039 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2040 arbitrary string expansion). This allowed for information disclosure.
2041
2042PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2043 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2044
10906672 2045
aa097c4c
NM
2046Exim version 4.75
2047-----------------
2048
4c04137d 2049NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2050 Bugzilla 1073
2051
7f3d9eff
TF
2052TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2053 This fixes portability to compilers other than gcc, notably
2054 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2055
159f52d2
TF
2056TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2057 makefiles for portability to HP-UX and POSIX correctness.
2058
0cc9542a
PP
2059PP/01 Permit LOOKUP_foo enabling on the make command-line.
2060 Also via indented variable definition in the Makefile.
2061 (Debugging by Oliver Heesakkers).
2062
f7274286
PP
2063PP/02 Restore caching of spamd results with expanded spamd_address.
2064 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2065
7b797365
PP
2066PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2067 Improves build reliability. Fix from: Frank Elsner
2068
caacae52
NM
2069NM/02 Fix wide character breakage in the rfc2047 coding
2070 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2071
09dcaba9
NM
2072NM/03 Allow underscore in dnslist lookups
2073 Fixes bug 1026. Patch from Graeme Fowler
2074
bc19a55b
PP
2075PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2076 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2077
bd4c9759
NM
2078NM/04 Fixed exiqgrep to cope with mailq missing size issue
2079 Fixes bug 943.
2080
b72aab72
PP
2081PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2082 is logged, to avoid truncation. Patch from John Horne.
2083
2fe76745
PP
2084PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2085 Patch from Jakob Hirsch.
2086
76aa570c
PP
2087PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2088 SQL string expansion failure details.
2089 Patch from Andrey Oktyabrski.
2090
f1e5fef5
PP
2091PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2092 Patch from Simon Arlott.
2093
4d805ee9
PP
2094PP/09 New lookups functionality failed to compile on old gcc which rejects
2095 extern declarations in function scope.
2096 Patch from Oliver Fleischmann
2097
cd59ab18
PP
2098PP/10 Use sig_atomic_t for flags set from signal handlers.
2099 Check getgroups() return and improve debugging.
2100 Fixed developed for diagnosis in bug 927 (which turned out to be
2101 a kernel bug).
2102
332f5cf3
PP
2103PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2104 Patch from Mark Zealey.
2105
29cfeb94
PP
2106PP/12 Bugzilla 1056: Improved spamd server selection.
2107 Patch from Mark Zealey.
2108
660242ad
PP
2109PP/13 Bugzilla 1086: Deal with maildir quota file races.
2110 Based on patch from Heiko Schlittermann.
2111
bc4bc4c5
PP
2112PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2113 Patch from Uwe Doering, sign-off by Michael Haardt.
2114
2e64baa9
NM
2115NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2116 variable declaration deep within a block. Bug and patch from
2117 Dennis Davis.
2118
4c04137d 2119PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2120
6bac1a9a
PP
2121PP/16 Make DISABLE_DKIM build knob functional.
2122
552193f0
NM
2123NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2124 Patch by Simon Arlott
baeee2c1 2125
1b587e48
TF
2126TF/03 Fix valgrind.h portability to C89 compilers that do not support
2127 variable argument macros. Our copy now differs from upstream.
2128
aa097c4c 2129
8c07b69f
TF
2130Exim version 4.74
2131-----------------
2132
2133TF/01 Failure to get a lock on a hints database can have serious
2134 consequences so log it to the panic log.
2135
c0ea85ab
TF
2136TF/02 Log LMTP confirmation messages in the same way as SMTP,
2137 controlled using the smtp_confirmation log selector.
2138
0761d44e
TF
2139TF/03 Include the error message when we fail to unlink a spool file.
2140
0a349494
PP
2141DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2142 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2143 for maintaining out-of-tree patches for some time.
2144
2145PP/01 Bugzilla 139: Documentation and portability issues.
2146 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2147 Handle per-OS dynamic-module compilation flags.
2148
fea24b2e
PP
2149PP/02 Let /dev/null have normal permissions.
2150 The 4.73 fixes were a little too stringent and complained about the
2151 permissions on /dev/null. Exempt it from some checks.
2152 Reported by Andreas M. Kirchwitz.
2153
6545de78
PP
2154PP/03 Report version information for many libraries, including
2155 Exim version information for dynamically loaded libraries. Created
2156 version.h, now support a version extension string for distributors
2157 who patch heavily. Dynamic module ABI change.
2158
1670ef10
PP
2159PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2160 privilege escalation vulnerability whereby the Exim run-time user
2161 can cause root to append content of the attacker's choosing to
2162 arbitrary files.
2163
c0886197
PP
2164PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2165 (Wolfgang Breyha)
2166
b7487bce
PP
2167PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2168 If dropping privileges for untrusted macros, we disabled normal logging
2169 on the basis that it would fail; for the Exim run-time user, this is not
2170 the case, and it resulted in successful deliveries going unlogged.
2171 Fixed. Reported by Andreas Metzler.
2172
8c07b69f 2173
97fd1e48 2174Exim version 4.73
ed7f7860 2175-----------------
97fd1e48
PP
2176
2177PP/01 Date: & Message-Id: revert to normally being appended to a message,
2178 only prepend for the Resent-* case. Fixes regression introduced in
2179 Exim 4.70 by NM/22 for Bugzilla 607.
2180
6901c596
PP
2181PP/02 Include check_rfc2047_length in configure.default because we're seeing
2182 increasing numbers of administrators be bitten by this.
2183
a8c8d6b5
JJ
2184JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2185
77bb000f
PP
2186PP/03 Bugzilla 994: added openssl_options main configuration option.
2187
a29e5231
PP
2188PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2189
ec5a0394 2190PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2191
55c75993
PP
2192PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2193
453a6645 2194PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2195 without a peer certificate, leading to a segfault because of an
2196 assumption that peers always have certificates. Be a little more
453a6645
PP
2197 paranoid. Problem reported by Martin Tscholak.
2198
8544e77a
PP
2199PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2200 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2201 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2202 CL also introduces -bmalware, various -d+acl logging additions and
2203 more caution in buffer sizes.
8544e77a 2204
83e029d5
PP
2205PP/09 Implemented reverse_ip expansion operator.
2206
ed7f7860
PP
2207PP/10 Bugzilla 937: provide a "debug" ACL control.
2208
7d9f747b
PP
2209PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2210
4b2241d2
PP
2211PP/12 Bugzilla 973: Implement --version.
2212
10385c15
PP
2213PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2214
dbc4b90d
PP
2215PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2216
532be449
PP
2217PP/15 Bugzilla 816: support multiple condition rules on Routers.
2218
6a8de854 2219PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2220 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2221 ignore trailing whitespace.
6a8de854 2222
5dc43717
JJ
2223JJ/02 prevent non-panic DKIM error from being sent to paniclog
2224
2225JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2226 "exim" to be used
55c75993 2227
3346ab01
PP
2228PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2229 Notification from Dr Andrew Aitchison.
2230
491fab4c
PP
2231PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2232 ExtendedDetectionInfo response format.
2233 Notification from John Horne.
2234
13eb9497
PP
2235PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2236 compatible.
2237
2238PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2239 XSL and documented dependency on system catalogs, with examples of how
2240 it normally works.
2241
7f36d675
DW
2242DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2243 access.
2244
c1d94452
DW
2245DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2246 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2247 configuration file which is writeable by the Exim user or group.
2248
e2f5dc15
DW
2249DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2250 of configuration files to cover files specified with the -C option if
2251 they are going to be used with root privileges, not just the default
2252 configuration file.
2253
cd25e41d
DW
2254DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2255 option (effectively making it always true).
2256
261dc43e
DW
2257DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2258 files to be used while preserving root privileges.
2259
fa32850b
DW
2260DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2261 that rogue child processes cannot use them.
2262
79d4bc3d
PP
2263PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2264 run-time user, instead of root.
2265
43236f35 2266PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2267 Exim run-time user without dropping privileges.
2268
fb08281f
DW
2269DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2270 result string, instead of calling string_vformat() twice with the same
2271 arguments.
3346ab01 2272
74935b98
DW
2273DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2274 for other users. Others should always drop root privileges if they use
2275 -C on the command line, even for a whitelisted configure file.
2276
90b6341f
DW
2277DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2278
57730b52
ML
2279NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2280
66581d1e 2281
465e92cf
JJ
2282Exim version 4.72
2283-----------------
2284
453a6645
PP
2285JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2286 $data_path, and $header_path variables; fixed documentation bugs and
2287 typos
465e92cf 2288
453a6645
PP
2289JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2290 exipick to access non-standard spools, including the "frozen" queue
2291 (Finput)
edae0343 2292
9bd3e22c
NM
2293NM/01 Bugzilla 965: Support mysql stored procedures.
2294 Patch from Alain Williams
2295
bb576ff7
NM
2296NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2297
5a1a5845
NM
2298NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2299 Patch from Andreas Metzler
2300
981a9fad
NM
2301NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2302 Patch from Kirill Miazine
2303
7fc497ee
NM
2304NM/05 Bugzilla 671: Added umask to procmail example.
2305
1a41defa
JJ
2306JJ/03 installed exipick 20100323.0, fixing doc bug
2307
a466095c 2308NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2309 directory. Notification and patch from Dan Rosenberg.
a466095c 2310
94a6bd0b
NM
2311TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2312
2313TK/02 Improve log output when DKIM signing operation fails.
2314
2315MH/01 Treat the transport option dkim_domain as a colon separated
2316 list, not as a single string, and sign the message with each element,
2317 omitting multiple occurences of the same signer.
2318
c1b141a8
NM
2319NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2320 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2321
b26eacf1 2322NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2323 Patch by Simon Arlott
2324
179c5980 2325PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2326 MBX locking. Notification from Dan Rosenberg.
179c5980 2327
9bd3e22c 2328
7c6d71af
NM
2329Exim version 4.71
2330-----------------
2331
7d9f747b 2332TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2333
f013fb92
NM
2334NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2335
0eb8eedd
NM
2336NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2337
663ee6d9
NM
2338NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2339
177ebd9b
NM
2340NM/04 Bugzilla 915: Flag broken perl installation during build.
2341
7c6d71af 2342
210f147e
NM
2343Exim version 4.70
2344-----------------
2345
cdd3bb85 2346TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2347 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2348
2349TK/02 Write list of recipients to X-Envelope-Sender header when building
2350 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2351 Hirsch).
cdd3bb85
TK
2352
2353TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2354 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2355 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2356
2357TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2358 by Mark Daniel Reidel <mr@df.eu>.
2359
210f147e
NM
2360NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2361 When building exim an external PCRE library is now needed -
2362 PCRE is a system library on the majority of modern systems.
2363 See entry on PCRE_LIBS in EDITME file.
2364
deafd5b3
NM
2365NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2366 conversation. Added nologin parameter to request.
7d9f747b 2367 Patch contributed by Kirill Miazine.
deafd5b3 2368
089793a4
TF
2369TF/01 Do not log submission mode rewrites if they do not change the address.
2370
5f16ca82
TF
2371TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2372
dae9d94e 2373NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2374 log files in place. Contributed by Roberto Lima.
dae9d94e 2375
7d9f747b 2376NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2377
06864c44
TF
2378TF/03 Bugzilla 615: When checking the local_parts router precondition
2379 after a local_part_suffix or local_part_prefix option, Exim now
2380 does not use the address's named list lookup cache, since this
2381 contains cached lookups for the whole local part.
2382
65a7d8c3 2383NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2384 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2385
23510047 2386TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2387
7d9f747b 2388NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2389
7d8eec3a 2390NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2391 Patch provided by Jan Srzednicki.
6c588e74 2392
89dec7b6
TF
2393TF/05 Leading white space used to be stripped from $spam_report which
2394 wrecked the formatting. Now it is preserved.
5f28a6e8 2395
a99de90c
TF
2396TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2397 that they are available at delivery time.
2398
e2803e40
TF
2399TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2400
7199e1ee
TF
2401TF/08 TLS error reporting now respects the incoming_interface and
2402 incoming_port log selectors.
2403
e276e04b
TF
2404TF/09 Produce a more useful error message if an SMTP transport's hosts
2405 setting expands to an empty string.
2406
ce552449 2407NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2408 Patch provided by Phil Pennock.
ce552449 2409
e765a0f1 2410NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2411 Patch provided by Richard Godbee.
e765a0f1 2412
4f054c63 2413NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2414 acl_smtp_notquit, added index entry.
4f054c63 2415
7d9f747b
PP
2416NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2417 Patch provided by Eugene Bujak.
24c929a2 2418
7d9f747b
PP
2419NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2420 accept(). Patch provided by Maxim Dounin.
cf73943b 2421
b52bc06e 2422NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2423 Patch provided by Phil Pennock.
b52bc06e 2424
447de4b0
NM
2425NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2426
4c69d561 2427NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2428 Patch provided by Brad "anomie" Jorsch.
4c69d561 2429
d5c39246 2430NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2431 Patch provided by Dean Brooks.
9b989985 2432
0b23848a
TK
2433TK/05 Add native DKIM support (does not depend on external libraries).
2434
8f3414a1 2435NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2436 Patch provided by Graeme Fowler.
e2aacdfd 2437
fb6f955d
NM
2438NM/16 Bugzilla 851: Documentation example syntax fix.
2439
2440NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2441
7d9f747b
PP
2442NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2443 lsearch.
dbb0bf41 2444
7d9f747b
PP
2445NM/19 Bugzilla 745: TLS version reporting.
2446 Patch provided by Phil Pennock.
f3766eb5 2447
7d9f747b
PP
2448NM/20 Bugzilla 167: bool: condition support.
2449 Patch provided by Phil Pennock.
36f12725 2450
7d9f747b
PP
2451NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2452 clients. Patch provided by Phil Pennock.
e6060e2c 2453
7d9f747b
PP
2454NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2455 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2456
7d9f747b
PP
2457NM/23 Bugzilla 687: Fix misparses in eximstats.
2458 Patch provided by Heiko Schlittermann.
d5c13d66 2459
7d9f747b
PP
2460NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2461 Patch provided by Heiko Schlittermann.
b2335c0b 2462
7d9f747b 2463NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2464 plus update to original patch.
f4cd9433 2465
7d9f747b 2466NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2467
7d9f747b
PP
2468NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2469 Patch provided by David Brownlee.
8dc71ab3 2470
7d9f747b 2471NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2472
7d9f747b 2473NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2474
7d9f747b 2475NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2476
7d9f747b 2477NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2478
17792b53 2479NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2480 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2481
7d9f747b
PP
2482NM/33 Bugzilla 898: Transport filter timeout fix.
2483 Patch by Todd Rinaldo.
52383f8f 2484
91576cec 2485NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2486 Patch by Serge Demonchaux.
5ca6d115 2487
7d9f747b
PP
2488NM/35 Bugzilla 39: Base64 decode bug fixes.
2489 Patch by Jakob Hirsch.
baee9eee 2490
7d9f747b 2491NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2492
7d9f747b 2493NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2494
7d9f747b 2495NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2496
7d9f747b 2497NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2498
deafd5b3 2499
47db1125
NM
2500Exim version 4.69
2501-----------------
2502
4b3504d0
TK
2503TK/01 Add preliminary DKIM support. Currently requires a forked version of
2504 ALT-N's libdkim that I have put here:
2505 http://duncanthrax.net/exim-experimental/
2506
2507 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2508 were called 'true' and it seems that C99 defines that as a reserved
2509 keyword to be used with 'bool' variable types. That means you could
2510 not include C99-style headers which use bools without triggering
2511 build errors in sieve.c.
2512
81ea09ca
NM
2513NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2514 as mailq or other aliases. Changed the --help handling significantly
2515 to do whats expected. exim_usage() emits usage/help information.
2516
f13cddcb
SC
2517SC/01 Added the -bylocaldomain option to eximstats.
2518
7d9f747b 2519NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2520
7d9f747b 2521NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2522
7d9f747b 2523NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2524
2525
eb4c0de6
PH
2526Exim version 4.68
2527-----------------
2528
2529PH/01 Another patch from the Sieve maintainer.
2530
6a3bceb1
PH
2531PH/02 When an IPv6 address is converted to a string for single-key lookup
2532 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2533 dots are used instead of colons so that keys in lsearch files need not
2534 contain colons. This was done some time before quoting was made available
2535 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2536 (notated using the quote facility) so as to distinguish them from IPv4
2537 keys. This meant that lookups for IP addresses in host lists did not work
2538 for iplsearch lookups.
2539
2540 This has been fixed by arranging for IPv6 addresses to be expressed with
2541 colons if the lookup type is iplsearch. This is not incompatible, because
2542 previously such lookups could never work.
2543
4c04137d 2544 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2545 ordinary lsearch keys. However, making the change in all cases is
2546 incompatible and would probably break a number of configurations.
2547
2e30fa9d
TK
2548TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2549 version.
2550
0806a9c5
MH
2551MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2552 conversion specification without a maximum field width, thereby enabling
2553 a rogue spamd server to cause a buffer overflow. While nobody in their
2554 right mind would setup Exim to query an untrusted spamd server, an
2555 attacker that gains access to a server running spamd could potentially
2556 exploit this vulnerability to run arbitrary code as the Exim user.
2557
ae276964
TK
2558TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2559 $primary_hostname instead of what libspf2 thinks the hosts name is.
2560
0f2cbd1b
MH
2561MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2562 a directory entry by the name of the lookup key. Previously, if a
2563 symlink pointed to a non-existing file or a file in a directory that
2564 Exim lacked permissions to read, a lookup for a key matching that
2565 symlink would fail. Now it is enough that a matching directory entry
2566 exists, symlink or not. (Bugzilla 503.)
2567
2b85bce7
PH
2568PH/03 The body_linecount and body_zerocount variables are now exported in the
2569 local_scan API.
2570
93655c46
PH
2571PH/04 Added the $dnslist_matched variable.
2572
6c512171
PH
2573PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2574 This means they are set thereafter only if the connection becomes
2575 encrypted.
2576
2577PH/06 Added the client_condition to authenticators so that some can be skipped
2578 by clients under certain conditions.
2579
aa6dc513
PH
2580PH/07 The error message for a badly-placed control=no_multiline_responses left
2581 "_responses" off the end of the name.
2582
a96603a0
PH
2583PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2584
8f240103
PH
2585PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2586 (without spaces) instead of just copying the configuration text.
2587
2588PH/10 Added the /noupdate option to the ratelimit ACL condition.
2589
d677b2f2
PH
2590PH/11 Added $max_received_linelength.
2591
d52120f2
PH
2592PH/12 Added +ignore_defer and +include_defer to host lists.
2593
64f2600a
PH
2594PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2595 way in which PCRE > 7.0 is built.
2596
8669f003
PH
2597PH/14 Implemented queue_only_load_latch.
2598
a4dc33a8
PH
2599PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2600 MAIL command. The effect was to mangle the value on 64-bit systems.
2601
d6a60c0f
PH
2602PH/16 Another patch from the Sieve maintainer.
2603
8f128379
PH
2604PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2605
8932dffe
PH
2606PH/18 If a system quota error occurred while trying to create the file for
2607 a maildir delivery, the message "Mailbox is full" was not appended to the
2608 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2609 only to a quota excession during the actual writing of the file.
d6a60c0f 2610
ddea74fa 2611PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2612 characters?) which causes problems in log lines. The DN values are now
2613 passed through string_printing() before being added to log lines.
2614
ddea74fa 2615PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2616 and InterBase are left for another time.)
2617
ddea74fa
PH
2618PH/21 Added message_body_newlines option.
2619
ce9f225c
PH
2620PH/22 Guard against possible overflow in moan_check_errorcopy().
2621
19897d52
PH
2622PH/23 POSIX allows open() to be a macro; guard against that.
2623
bc64a74d
PH
2624PH/24 If the recipient of an error message contained an @ in the local part
2625 (suitably quoted, of course), incorrect values were put in $domain and
2626 $local_part during the evaluation of errors_copy.
2627
eb4c0de6 2628
b4ed4da0
PH
2629Exim version 4.67
2630-----------------
2631
22ad45c9
MH
2632MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2633 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2634 Jan Srzednicki.
2635
b4ed4da0
PH
2636PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2637 issue a MAIL command.
2638
431b7361
PH
2639PH/02 In an ACL statement such as
2640
2641 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2642
2643 if a client was not listed at all, or was listed with a value other than
2644 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2645 the condition was not true (as it should be), so access was not denied.
2646 The bug was that the ! inversion was incorrectly passed on to the second
2647 item. This has been fixed.
2648
2649PH/03 Added additional dnslists conditions == and =& which are different from
2650 = and & when the dns lookup returns more than one IP address.
2651
83da1223
PH
2652PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2653 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2654
54fc8428
PH
2655PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2656 FSYNC, which compiles an option called disable_fsync that allows for
2657 bypassing fsync(). The documentation is heavily laced with warnings.
2658
34c5e8dd
SC
2659SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2660
bbe15da8
PH
2661PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2662 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2663 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2664 including adding "make clean"; (3) Added -fPIC when compiling the test
2665 dynamically loaded module, to get rid of a warning.
2666
0e8a9471
MH
2667MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2668 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2669 = 0s. The bug is otherwise harmless.
2670
f0872424
PH
2671PH/07 There was a bug in the dovecot authenticator such that the value of
2672 $auth1 could be overwritten, and so not correctly preserved, after a
2673 successful authentication. This usually meant that the value preserved by
2674 the server_setid option was incorrect.
2675
b01dd148
PH
2676PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2677
6bf342e1
PH
2678PH/09 Installed PCRE release 7.0.
2679
273f34d0
PH
2680PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2681 run for batched SMTP input. It is now run at the start of every message
2682 in the batch. While fixing this I discovered that the process information
2683 (output by running exiwhat) was not always getting set for -bs and -bS
2684 input. This is fixed, and it now also says "batched" for BSMTP.
2685
cf8b11a5
PH
2686PH/11 Added control=no_pipelining.
2687
41c7c167
PH
2688PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2689 patch, slightly modified), and move the expansion of helo_data till after
2690 the connection is made in the smtp transport (so it can use these
2691 values).
2692
9c57cbc0
PH
2693PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2694
f3f065bb
PH
2695PH/14 Added log_selector = +pid.
2696
047bdd8c
PH
2697PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2698
0ce9abe6
PH
2699PH/16 Add ${if forany and ${if forall.
2700
0e22dfd1
PH
2701PH/17 Added dsn_from option to vary the From: line in DSNs.
2702
4c590bd1
PH
2703PH/18 Flush SMTP output before performing a callout, unless control =
2704 no_callout_flush is set.
2705
09945f1e
PH
2706PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2707 was true (the default) a successful delivery failed to delete the retry
2708 item, thus causing premature timeout of the address. The bug is now
2709 fixed.
2710
c51b8e75
PH
2711PH/20 Added hosts_avoid_pipelining to the smtp transport.
2712
e28326d8 2713PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2714 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2715 other ACL rejections are.
2716
75b1493f
PH
2717PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2718 with slight modification.
2719
7c5214ec
PH
2720PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2721 draft, changing the syntax and factoring some duplicate code".
2722
4311097e
PH
2723PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2724 for deliveries of the second and subsequent messages over the same SMTP
2725 connection.
2726
29f89cad
PH
2727PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2728 ${reduce, with only minor "tidies".
2729
5e687460
SC
2730SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2731
c3611384
PH
2732PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2733 expansion side effects.
2734
5a11a7b4
PH
2735PH/27 When a message times out after an over-quota error from an Exim-imposed
2736 quota, the bounce message says "mailbox is full". This message was not
2737 being given when it was a system quota that was exceeded. It now should
2738 be the same.
2739
0e20aff9
MH
2740MH/03 Made $recipients available in local_scan(). local_scan() already has
2741 better access to the recipient list through recipients_list[], but
2742 $recipients can be useful in postmaster-provided expansion strings.
2743
ca86f471
PH
2744PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2745 in the case of a MAIL command with additional options following the
2746 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2747 were accidentally chopped off.
2748
a14e5636
PH
2749PH/29 SMTP synchronization checks are implemented when a command is read -
2750 there is a check that no more input is waiting when there shouldn't be
2751 any. However, for some commands, a delay in an ACL can mean that it is
2752 some time before the response is written. In this time, more input might
2753 arrive, invalidly. So now there are extra checks after an ACL has run for
2754 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2755 pipelining has not been advertised.
2756
ec95d1a6
PH
2757PH/30 MH's patch to allow iscntrl() characters to be list separators.
2758
42855d71
PH
2759PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2760 returned in the SMTP response when smtp_return_error_details was false.
2761 This has been fixed.
2762
57c2c631
PH
2763PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2764 instead of the C I/O that was originally supplied, because problems were
2765 reported on Solaris.
2766
58c01c94
PH
2767PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2768 Exim which did not show up earlier: it was assuming that a call to
2769 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2770 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2771 was a macro that became an assignment, so it seemed to work. This has
2772 changed to a proper function call with a void return, hence the compile
2773 error. Exim's code has been fixed.
2774
dee5a20a
PH
2775PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2776 cpus.
2777
d2ee6114
PH
2778PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2779
b2d5182b
PH
2780PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2781
79749a79
PH
2782PH/37 If a message is not accepted after it has had an id assigned (e.g.
2783 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2784 "Completed" line in the log. When some messages of this type were
2785 selected by exigrep, they were listed as "not completed". Others were
2786 picked up by some special patterns. I have improved the selection
2787 criteria to be more general.
79749a79 2788
c456d9bb
PH
2789PH/38 The host_find_failed option in the manualroute router can now be set
2790 to "ignore", to completely ignore a host whose IP address cannot be
2791 found. If all hosts are ignored, the behaviour is controlled by the new
2792 host_all_ignored option.
2793
cd9868ec
PH
2794PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2795 homing or because of multiple MX records with /mx) generated more than
2796 one IP address, and the following item turned out to be the local host,
2797 all the secondary addresses of the first item were incorrectly removed
2798 from the list, along with the local host and any following hosts (which
2799 is what is supposed to happen).
2800
ebeaf996
PH
2801PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2802 whoever called Exim into the -H file. In the case of the daemon it was
2803 behaving confusingly. When first started, it used values for whoever
2804 started the daemon, but after a SIGHUP it used the Exim user (because it
2805 calls itself on a restart). I have changed the code so that it now always
2806 uses the Exim user.
2807
2679d413
PH
2808PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2809 message are rejected with the same error (e.g. no authentication or bad
2810 sender address), and a DATA command is nevertheless sent (as can happen
2811 with PIPELINING or a stupid MUA), the error message that was given to the
2812 RCPT commands is included in the rejection of the DATA command. This is
2813 intended to be helpful for MUAs that show only the final error to their
2814 users.
2815
84024b72
PH
2816PH/42 Another patch from the Sieve maintainer.
2817
8005d38e
SC
2818SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2819 Eximstats - Fixed some broken HTML links and added missing column headers
2820 (Jez Hancock).
2821 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2822 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2823
3298c6c6
SC
2824SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2825
a43a27c5
PH
2826PH/43 Yet another patch from the Sieve maintainer.
2827
58eb016e 2828PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2829 the response to the final '.' that terminates a message, but only in the
2830 case where the client has not sent further data following the '.'
2831 (unfortunately, this is allowed). However, in many cases there won't be
2832 any further data because there won't be any more messages to send. A call
2833 to select() can be used: if it shows that the input is "ready", there is
2834 either input waiting, or the socket has been closed. An attempt to read
2835 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2836 would have sent an OK response which the client would never have see.
563b63fa
PH
2837 This could lead to message repetition. This fix should cure that, at
2838 least in a lot of common cases.
58eb016e 2839
b43a74ea
PH
2840PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2841 advertised in response to EHLO.
2842
b4ed4da0 2843
5dd1517f
PH
2844Exim version 4.66
2845-----------------
2846
2847PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2848 fixed by 4.65/MH/01 (is this a record?) are fixed:
2849
2850 (i) An empty string was always treated as zero by the numeric comparison
2851 operators. This behaviour has been restored.
2852
2853 (ii) It is documented that the numeric comparison operators always treat
2854 their arguments as decimal numbers. This was broken in that numbers
2855 starting with 0 were being interpreted as octal.
2856
2857 While fixing these problems I realized that there was another issue that
2858 hadn't been noticed. Values of message_size_limit (both the global option
2859 and the transport option) were treated as octal if they started with 0.
2860 The documentation was vague. These values are now always treated as
2861 decimal, and I will make that clear in the documentation.
2862
2863
93cfa765
TK
2864Exim version 4.65
2865-----------------
2866
2867TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2868 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2869 versions. (#438)
2870
d6066548
MH
2871MH/01 Don't check that the operands of numeric comparison operators are
2872 integers when their expansion is in "skipping" mode (fixes bug
2873 introduced by 4.64-PH/07).
2874
4362ff0d
PH
2875PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2876 child addresses, Exim now panics and dies. Previously, because the count
2877 is held in a short int, deliveries were likely to be lost. As such a
2878 large number of recipients for a single message is ridiculous
2879 (performance will be very, very poor), I have chosen to impose a limit
2880 rather than extend the field.
2881
93cfa765 2882
944e9e9c
TF
2883Exim version 4.64
2884-----------------
aa41d2de 2885
21d74bd9
TK
2886TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2887 leftover -K file (the existence of which was triggered by #402).
2888 While we were at it, introduced process PID as part of the -K
2889 filename. This should rule out race conditions when creating
2890 these files.
2891
2892TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2893 processing considerably. Previous code took too long for large mails,
2894 triggering a timeout which in turn triggers #401.
2895
2896TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2897 in the DK code in transports.c. sendfile() is not really portable,
2898 hence the _LINUX specificness.
944e9e9c
TF
2899
2900TF/01 In the add_headers option to the mail command in an Exim filter,
2901 there was a bug that Exim would claim a syntax error in any
2902 header after the first one which had an odd number of characters
2903 in the field name.
2904
2b1c6e3a
PH
2905PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2906 callout verification, Exim cached a "reject" for the entire domain. This
2907 is correct for most verifications, but it is not correct for a recipient
2908 verification with use_sender or use_postmaster set, because in that case
2909 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2910 case of MAIL FROM:<> rejection from other early rejections (e.g.
2911 rejection of HELO). When verifying a recipient using a non-null MAIL
2912 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2913 Whatever the result of the callout, the value of the domain cache is
2914 left unchanged (for any other kind of callout, getting as far as trying
2915 RCPT means that the domain itself is ok).
2916
1f872c80
PH
2917PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2918 gcc 4.1.1 threw up.
2919
2920PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2921 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2922 session, the daemon ignores ECONNECT errors and logs others; it now
2923 ignores EPIPE as well.
2924
d203e649
PH
2925PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2926 (quoted-printable decoding).
2927
cc2ed8f7 2928PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2929 later the small subsequent patch to fix an introduced bug.
f951fd57 2930
ddfcd446
PH
2931PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2932
d45b1de8
PH
2933PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2934
2935PH/08 An error is now given if message_size_limit is specified negative.
2936
38a0a95f 2937PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2938 to be given (somewhat) arbitrary names.
38a0a95f 2939
a2405d83
JJ
2940JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2941 in 4.64-PH/09.
2942
2943JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2944 miscellaneous code fixes
2945
6ea85e9a
PH
2946PH/10 Added the log_reject_target ACL modifier to specify where to log
2947 rejections.
2948
26da7e20
PH
2949PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2950 hostname. This is wrong, because it relates to the incoming message (and
2951 probably the interface on which it is arriving) and not to the outgoing
2952 callout (which could be using a different interface). This has been
2953 changed to use the value of the helo_data option from the smtp transport
2954 instead - this is what is used when a message is actually being sent. If
2955 there is no remote transport (possible with a router that sets up host
2956 addresses), $smtp_active_hostname is used.
6ea85e9a 2957
14aa5a05 2958PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2959 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2960 (a) The code assumed that strncpy() returns a negative number on buffer
2961 overflow, which isn't the case. Replaced with Exim's string_format()
2962 function.
2963 (b) There were several signed/unsigned issues. I just did the minimum
2964 hacking in of casts. There is scope for a larger refactoring.
2965 (c) The code used strcasecmp() which is not a standard C function.
2966 Replaced with Exim's strcmpic() function.
2967 (d) The code set only $1; it now sets $auth1 as well.
2968 (e) A simple test gave the error "authentication client didn't specify
2969 service in request". It would seem that Dovecot has changed its
2970 interface. Fortunately there's a specification; I followed it and
2971 changed what the client sends and it appears to be working now.
2972
ff75a1f7
PH
2973PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2974 decoding.
2975
e6f6568e
PH
2976PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2977 address A is aliased to B and C, where B exists and C does not. Without
2978 -v the output is "A verified" because verification stops after a
2979 successful redirection if more than one address is generated. However,
2980 with -v the child addresses are also verified. Exim was outputting "A
2981 failed to verify" and then showing the successful verification for C,
2982 with its parentage. It now outputs "B failed to verify", showing B's
2983 parentage before showing the successful verification of C.
2984
d6f6e0dc
PH
2985PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2986 look up a TXT record in a specific list after matching in a combined
2987 list.
2988
322050c2
PH
2989PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2990 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2991 they consult the DNS. I had assumed they would set it the way they
2992 wanted; and indeed my experiments on Linux seem to show that in some
2993 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2994 To be on the safe side, however, I have now made the interface to
2995 host_find_byname() similar to host_find_bydns(), with an argument
2996 containing the DNS resolver options. The host_find_byname() function now
2997 sets these options at its start, just as host_find_bydns() does. The smtp
2998 transport options dns_qualify_single and dns_search_parents are passed to
2999 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
3000 of host_find_byname() use the default settings of RES_DEFNAMES
3001 (qualify_single) but not RES_DNSRCH (search_parents).
3002
08955dd3
PH
3003PH/17 Applied (a modified version of) Nico Erfurth's patch to make
3004 spool_read_header() do less string testing, by means of a preliminary
3005 switch on the second character of optional "-foo" lines. (This is
3006 overdue, caused by the large number of possibilities that now exist.
3007 Originally there were few.) While I was there, I also converted the
3008 str(n)cmp tests so they don't re-test the leading "-" and the first
3009 character, in the hope this might squeeze out yet more improvement.
3010
1eccaa59
PH
3011PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3012 flag allowing group syntax was set by the header_syntax check but not
3013 turned off, possible causing trouble later; (2) The flag was not being
3014 set at all for the header_verify test, causing "group"-style headers to
3015 be rejected. I have now set it in this case, and also caused header_
3016 verify to ignore an empty address taken from a group. While doing this, I
3017 came across some other cases where the code for allowing group syntax
3018 while scanning a header line wasn't quite right (mostly, not resetting
3019 the flag correctly in the right place). These bugs could have caused
3020 trouble for malformed header lines. I hope it is now all correct.
3021
602e59e5
PH
3022PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3023 with the "reply" argument non-NULL. The code, however (which originally
3024 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3025 but it didn't always do it. This confused somebody who was copying the
3026 code for some other use. I have removed all the tests.
3027
411ef850
PH
3028PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3029 feature that was used to support insecure browsers during the U.S. crypto
3030 embargo. It requires special client support, and Exim is probably the
3031 only MTA that supported it -- and would never use it because real RSA is
3032 always available. This code has been removed, because it had the bad
3033 effect of slowing Exim down by computing (never used) parameters for the
3034 RSA_EXPORT functionality.
3035
7befa435
PH
3036PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3037 authenticator to fail if there's a tab character in the incoming data
3038 (there should never be unless someone is messing about, as it's supposed
3039 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3040 if the connection is using TLS or if the remote IP is the same as the
3041 local IP, and the "valid-client-cert option" if a client certificate has
3042 been verified.
3043
48da4259 3044PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3045 authenticators. This can be used for authorization after authentication
3046 succeeds. (In the case of plaintext, it servers for both authentication
3047 and authorization.)
3048
48da4259
PH
3049PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3050 if any retry times were supplied.
3051
d1d5595c
PH
3052PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3053 connection, where there is no client IP address to check. In this
3054 situation, the verify now always succeeds.
3055
0ef732d9
PH
3056PH/25 Applied John Jetmore's -Mset patch.
3057
328895cc
PH
3058PH/26 Added -bem to be like -Mset, but loading a message from a file.
3059
fd700877
PH
3060PH/27 In a string expansion for a processed (not raw) header when multiple
3061 headers of the same name were present, leading whitespace was being
3062 removed from all of them, but trailing whitespace was being removed only
3063 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3064 before concatenation. Completely empty headers in a concatenation (as
3065 before) are ignored.
fd700877 3066
8dce1a6f
PH
3067PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3068 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3069
17af4a17
PH
3070PH/29 [Removed. This was a change that I later backed out, and forgot to
3071 correct the ChangeLog entry (that I had efficiently created) before
3072 committing the later change.]
f6c332bd
PH
3073
3074PH/30 Exim was sometimes attempting to deliver messages that had suffered
3075 address errors (4xx response to RCPT) over the same connection as other
3076 messages routed to the same hosts. Such deliveries are always "forced",
3077 so retry times are not inspected. This resulted in far too many retries
3078 for the affected addresses. The effect occurred only when there were more
3079 hosts than the hosts_max_try setting in the smtp transport when it had
3080 the 4xx errors. Those hosts that it had tried were not added to the list
3081 of hosts for which the message was waiting, so if all were tried, there
3082 was no problem. Two fixes have been applied:
3083
3084 (i) If there are any address or message errors in an SMTP delivery, none
3085 of the hosts (tried or untried) are now added to the list of hosts
3086 for which the message is waiting, so the message should not be a
3087 candidate for sending over the same connection that was used for a
3088 successful delivery of some other message. This seems entirely
3089 reasonable: after all the message is NOT "waiting for some host".
3090 This is so "obvious" that I'm not sure why it wasn't done
3091 previously. Hope I haven't missed anything, but it can't do any
3092 harm, as the worst effect is to miss an optimization.
3093
3094 (ii) If, despite (i), such a delivery is accidentally attempted, the
3095 routing retry time is respected, so at least it doesn't keep
3096 hammering the server.
3097
c1114884
PH
3098PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3099 in ${readsocket because some servers need this prod.
3100
7a0743eb
PH
3101PH/32 Added some extra debug output when updating a wait-xxx database.
3102
0d85fa3f
PH
3103PH/33 The hint "could be header name not terminated by colon", which has been
3104 given for certain expansion errors for a long time, was not being given
3105 for the ${if def:h_colon_omitted{... case.
3106
1bf43b78
PH
3107PH/34 The spec says: "With one important exception, whenever a domain list is
3108 being scanned, $domain contains the subject domain." There was at least
3109 one case where this was not true.
3110
520de300
PH
3111PH/35 The error "getsockname() failed: connection reset by peer" was being
3112 written to the panic log as well as the main log, but it isn't really
3113 panic-worthy as it just means the connection died rather early on. I have
3114 removed the panic log writing for the ECONNRESET error when getsockname()
3115 fails.
3116
48c7f9e2
PH
3117PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3118 runs only) independently of the message's sender address. This meant
3119 that, if the 4xx error was in fact related to the sender, a different
3120 message to the same recipient with a different sender could confuse
4c04137d 3121 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3122 server, but other circumstances could also provoke similar problems.
3123 I have changed the default so that the retry time for these errors is now
3124 based a combination of the sender and recipient addresses. This change
3125 can be overridden by setting address_retry_include_sender=false in the
3126 smtp transport.
3127
99ea1c86
PH
3128PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3129 remote server are returned as part of bounce messages. This was not
3130 happening for LMTP over a pipe (the lmtp transport), but now it is the
3131 same for both kinds of LMTP.
3132
a2042e78
PH
3133PH/38 Despite being documented as not happening, Exim was rewriting addresses
3134 in header lines that were in fact CNAMEs. This is no longer the case.
3135
4fbcfc2e
PH
3136PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3137 and queue runs started by the daemon processed all messages. This has
3138 been fixed so that -R and -S can now usefully be given with -q<time>.
3139
aa41d2de
PH
3140PH/40 Import PCRE release 6.7 (fixes some bugs).
3141
af561417
PH
3142PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3143
3cc66b45
PH
3144PH/42 Give an error if -q is specified more than once.
3145
194cc0e4
PH
3146PH/43 Renamed the variables $interface_address and $interface_port as
3147 $received_ip_address and $received_port, to make it clear that these
3148 values apply to message reception, and not to the outgoing interface when
3149 a message is delivered. (The old names remain recognized, of course.)
3150
a401ddaa
PH
3151PH/44 There was no timeout on the connect() call when using a Unix domain
3152 socket in the ${readsocket expansion. There now is.
3153
4e88a19f
PH
3154PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3155 be meaningful with "accept".
3156
d7d7b289
SC
3157SC/01 Eximstats V1.43
3158 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3159
3160SC/02 Eximstats V1.44
3161 Use a glob alias rather than an array ref in the generated
3162 parser. This improves both readability and performance.
3163
3164SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3165 Collect SpamAssassin and rejection statistics.
3166 Don't display local sender or destination tables unless
3167 there is data to show.
3168 Added average volumes into the top table text output.
3169
3170SC/04 Eximstats V1.46
3171 Collect data on the number of addresses (recipients)
3172 as well as the number of messages.
3173
3174SC/05 Eximstats V1.47
3175 Added 'Message too big' to the list of mail rejection
3176 reasons (thanks to Marco Gaiarin).
3177
3178SC/06 Eximstats V1.48
3179 Mainlog lines which have GMT offsets and are too short to
3180 have a flag are now skipped.
3181
3182SC/07 Eximstats V1.49 (Alain Williams)
3183 Added the -emptyok flag.
3184
3185SC/08 Eximstats V1.50
3186 Fixes for obtaining the IP address from reject messages.
3187
0ea2a468
JJ
3188JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3189 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3190 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3191
3192JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3193 match 4.64-PH/13
3194
3195JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3196 are found, allow negative numbers in numeric criteria)
3197
3198JJ/06 exipick.20061117.2, added new $message_body_missing variable
3199
3200JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3201 to match changes made in 4.64-PH/43
3202
8a10f5a4
PH
3203PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3204
30e18802
PH
3205PH/47 Put in an explicit test for a DNS lookup of an address record where the
3206 "domain" is actually an IP address, and force a failure. This locks out
3207 those revolvers/nameservers that support "A-for-A" lookups, in
3208 contravention of the specifications.
3209
55728a4f
PH
3210PH/48 When a host name was looked up from an IP address, and the subsequent
3211 forward lookup of the name timed out, the host name was left in
3212 $sender_host_name, contrary to the specification.
d7d7b289 3213
d7837193
PH
3214PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3215 restricted to single-key lookups, Exim was not diagnosing an error if
3216 * or *@ was used with a query-style lookup.
3217
87054a31
PH
3218PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3219
ea2c01d2
MH
3220MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3221 long ago, but noone interested enough thought of it. Let's just say that
3222 the "1.1" means that there are some new functions that weren't there at
3223 some point in the past.
3224
e4fa6968
PH
3225PH/51 Error processing for expansion failure of helo_data from an smtp
3226 transport during callout processing was broken.
3227
56f5d9bd
PH
3228PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3229 tested/used via the -bh/-bhc/-bs options.
3230
922e1c28
PH
3231PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3232 bug, fixed in subsequent PCRE releases).
3233
21eb6e72
PH
3234PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3235 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3236
a0540757
PH
3237PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3238
944e9e9c 3239
478be7b0
SC
3240Exim version 4.63
3241-----------------
3242
3243SC/01 Use a glob alias rather than an array ref in eximstats generated
3244 parser. This improves both readability and performance.
3245
3246SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3247 Don't display local sender or destination tables in eximstats unless
3248 there is data to show.
3249 Added average volumes into the eximstats top table text output.
3250
3251SC/03 Collect data on the number of addresses (recipients) as well
3252 as the number of messages in eximstats.
3253
2b965a65
TF
3254TF/01 Correct an error in the documentation for the redirect router. Exim
3255 does (usually) call initgroups() when daemonizing.
478be7b0