OpenSSL: Debug output TLS 1.3 keying
[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
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8Exim version 4.93
9-----------------
10
3c1f3b85
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11JH/01 OpenSSL: With debug enabled output keying information sufficient, server
12 side, to decode a TLS 1.3 packet capture.
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13
14
d99f54e4
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15Exim version 4.92
16-----------------
17
9723f966
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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
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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
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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
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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
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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
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37 messed with.
38
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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
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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
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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
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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
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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
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69JH/12 Add client-ip info to non-pass iprev ${authres } lines.
70
7a8b9519
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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
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76JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
77
74f1a423
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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
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84
85JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 86
946515bf
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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
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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
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95PP/02 Let -n work with printing macros too, not just options.
96
8a6b4e02
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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
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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
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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
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124 -Mrm. Developement by Matthias Kurz, hacked on by JH.
125
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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
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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
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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
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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
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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
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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
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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
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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
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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
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183AM/01 Bug 2359: GnuTLS: repeat lowlevel read and write operations while they return error
184 codes indicating retry. Under TLS1.3 this becomes required.
185
9723f966 186
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187Exim version 4.91
188-----------------
459fca58 189
c39c8870 190GF/01 DEFER rather than ERROR on redis cluster MOVED response.
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191 When redis_servers is set to a list of > 1 element, and the Redis servers
192 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
193 case of MOVED into a DEFER case instead, thus moving the query onto the
194 next server in the list. For a cluster of N elements, all N servers must
195 be defined in redis_servers.
c39c8870 196
0800ef83
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197GF/02 Catch and remove uninitialized value warning in exiqsumm
198 Check for existence of @ARGV before looking at $ARGV[0]
199
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200JH/01 Replace the store_release() internal interface with store_newblock(),
201 which internalises the check required to safely use the old one, plus
202 the allocate and data copy operations duplicated in both (!) of the
203 extant use locations.
204
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205JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
206 modifier. This matches the restriction on the commandline.
207
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208JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
209 Previously only the last row was returned.
210
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211JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
212 we assumed that tags in the header were well-formed, and parsed the
213 element content after inspecting only the first char of the tag.
214 Assumptions at that stage could crash the receive process on malformed
215 input.
216
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217JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
218 While running the DKIM ACL we operate on the Permanent memory pool so that
219 variables created with "set" persist to the DATA ACL. Also (at any time)
220 DNS lookups that fail create cache records using the Permanent pool. But
221 expansions release any allocations made on the current pool - so a dnsdb
222 lookup expansion done in the DKIM ACL releases the memory used for the
223 DNS negative-cache, and bad things result. Solution is to switch to the
224 Main pool for expansions.
225 While we're in that code, add checks on the DNS cache during store_reset,
226 active in the testsuite.
227 Problem spotted, and debugging aided, by Wolfgang Breyha.
228
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229JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
230 When none of the hosts presented to a transport match an already-open
231 connection, close it and proceed with the list. Previously we would
232 queue the message. Spotted by Lena with Yahoo, probably involving
233 round-robin DNS.
234
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235JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
236 Previously a spurious "250 OK id=" response was appended to the proper
237 failure response.
238
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239JH/08 The "support for" informational output now, which built with Content
240 Scanning support, has a line for the malware scanner interfaces compiled
241 in. Interface can be individually included or not at build time.
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242
243JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
244 by the template makefile "src/EDITME". The "STREAM" support for an older
245 ClamAV interface method is removed.
c11d665d 246
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247JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
248 rows affected is given instead).
249
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250JH/11 The runtime Berkeley DB library version is now additionally output by
251 "exim -d -bV". Previously only the compile-time version was shown.
252
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253JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
254 SMTP connection. Previously, when one had more receipients than the
255 first, an abortive onward connection was made. Move to full support for
256 multiple onward connections in sequence, handling cutthrough connection
257 for all multi-message initiating connections.
258
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259JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
260 routers. Previously, a multi-recipient message would fail to match the
261 onward-connection opened for the first recipient, and cause its closure.
262
f1fed05b
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263JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
264 a timeout on read on a GnuTLS initiating connection, resulting in the
265 initiating connection being dropped. This mattered most when the callout
266 was marked defer_ok. Fix to keep the two timeout-detection methods
267 separate.
268
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269JH/15 Relax results from ACL control request to enable cutthrough, in
270 unsupported situations, from error to silently (except under debug)
271 ignoring. This covers use with PRDR, frozen messages, queue-only and
272 fake-reject.
273
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274HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
275
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276JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
277 metadata, resulting in a crash in free().
278
aab9a843 279PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 280 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 281 Broken also in d185889f4, with init system revamp.
7be14582 282
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283JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
284 Previously we abruptly closed the connection after reading a malware-
285 found indication; now we go on to read the "scan ok" response line,
286 and send a quit.
287
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288JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
289 ACL. Previously, a crash would result.
290
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291JH/19 Speed up macro lookups during configuration file read, by skipping non-
292 macro text after a replacement (previously it was only once per line) and
293 by skipping builtin macros when searching for an uppercase lead character.
294
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295JH/20 DANE support moved from Experimental to mainline. The Makefile control
296 for the build is renamed.
297
b808677c
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298JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
299 was allocated for every new TLS startup, meaning one per message. Fix
300 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
301
6678c382
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302JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
303 reported the original. Fix to report (as far as possible) the ACL
304 result replacing the original.
305
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306JH/23 Fix memory leak during multi-message connections using STARTTLS under
307 OpenSSL. Certificate information is loaded for every new TLS startup,
308 and the resources needed to be freed.
309
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310JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
311
e6532c4a
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312JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
313 was not propagated.
314
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315JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
316 DATA response info to the (existing) per-recipient response info for
317 the "C=" log element. It can have useful tracking info from the
318 destination system. Patch from Simon Arlott.
319
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320JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
321 length value. Previously this would segfault.
322
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323HS/02 Support Avast multiline protoocol, this allows passing flags to
324 newer versions of the scanner.
325
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326JH/28 Ensure that variables possibly set during message acceptance are marked
327 dead before release of memory in the daemon loop. This stops complaints
328 about them when the debug_store option is enabled. Discovered specifically
329 for sender_rate_period, but applies to a whole set of variables.
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330 Do the same for the queue-runner and queue-list loops, for variables set
331 from spool message files. Do the same for the SMTP per-message loop, for
332 certain variables indirectly set in ACL operations.
e04bfa34 333
ecce6d9a
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334JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
335 as a multi-recipient message from a mailinglist manager). The coding had
336 an arbitrary cutoff number of characters while checking for more input;
337 enforced by writing a NUL into the buffer. This corrupted long / fast
338 input. The problem was exposed more widely when more pipelineing of SMTP
339 responses was introduced, and one Exim system was feeding another.
340 The symptom is log complaints of SMTP syntax error (NUL chars) on the
341 receiving system, and refused recipients seen by the sending system
342 (propating to people being dropped from mailing lists).
343 Discovered and pinpointed by David Carter.
344
c9cf9ac4
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345JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
346 replaced by the ${authresults } expansion.
347
b3b37076
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348JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
349
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350HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
351 allows proper process termination in container environments.
352
f64e8b5f
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353JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
354 Previously the "final dot" had a newline after it; ensure it is CR,LF.
355
8f0776b5
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356JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
357 and "err_perm", deprecated since 4.83 when the RFC-defined words
358 "temperror" and "permerror" were introduced.
359
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360JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
361 transport-filters or DKIM-signing. The restriction was lost in the
362 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 363 Extend the restriction to also cover ARC-signing.
857eaf37 364
c85476e9
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365JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
366 in defer=pass mode supply a 450 to the initiator. Previously the message
367 would be spooled.
368
405074ad
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369PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
370 tls_require_ciphers is used as before.
371
eb445b04
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372HS/03 Malware Avast: Better match the Avast multiline protocol. Add
373 "pass_unscanned". Only tmpfails from the scanner are written to
374 the paniclog, as they may require admin intervention (permission
375 denied, license issues). Other scanner errors (like decompression
376 bombs) do not cause a paniclog entry.
ad93c40f 377
d342446f
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378JH/36 Fix reinitialisation of DKIM logging variable between messages.
379 Previously it was possible to log spurious information in receive log
380 lines.
381
a28050f8
JH
382JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
383 triggered odd behaviour from Outlook Express clients.
384
ddd16464
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385PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
386 suffix list.
387
321ef002
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388JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
389 since the IETF WG has not yet settled on that versus the original
390 "bare" representation.
391
3203e7ba
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392JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
393 Previously the millisecond value corrupted the output.
394 Fix also for syslog_pid=no and log_selector +pid, for which the pid
395 corrupted the output.
396
bbfb5dcd 397
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398Exim version 4.90
399-----------------
400
401JH/01 Rework error string handling in TLS interface so that the caller in
402 more cases is responsible for logging. This permits library-sourced
403 string to be attached to addresses during delivery, and collapses
404 pairs of long lines into single ones.
405
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406PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
407 during configuration. Wildcards are allowed and expanded.
408
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409JH/02 Rework error string handling in DKIM to pass more info back to callers.
410 This permits better logging.
411
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412JH/03 Rework the transport continued-connection mechanism: when TLS is active,
413 do not close it down and have the child transport start it up again on
414 the passed-on TCP connection. Instead, proxy the child (and any
415 subsequent ones) for TLS via a unix-domain socket channel. Logging is
416 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 417 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 418
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419JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
420 identical IP addresses on different listening ports. Will also affect
421 "exiwhat" output.
422
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423PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
424 add noisy ifdef guards to special-case this sillyness.
425 Patch from Bernd Kuhls.
426
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427JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
428 than 255 are no longer allowed.
429
7006ee24
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430JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
431 Disable the session-cache too, which might reduce our load. Since we
432 currrectly use a new context for every connection, both as server and
433 client, there is no benefit for these.
434 GnuTLS appears to not support tickets server-side by default (we don't
435 call gnutls_session_ticket_enable_server()) but client side is enabled
436 by default on recent versions (3.1.3 +) unless the PFS priority string
437 is used (3.2.4 +).
438
6e411084
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439PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
440 <https://reproducible-builds.org/specs/source-date-epoch/>.
441
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442JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
443 the check for any unsuccessful recipients did not notice the limit, and
444 erroneously found still-pending ones.
445
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446JH/08 Pipeline CHUNKING command and data together, on kernels that support
447 MSG_MORE. Only in-clear (not on TLS connections).
448
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449JH/09 Avoid using a temporary file during transport using dkim. Unless a
450 transport-filter is involved we can buffer the headers in memory for
451 creating the signature, and read the spool data file once for the
452 signature and again for transmission.
453
eeb35890
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454JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
455 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 456 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 457
b7d3afcf
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458JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
459 case where the routing stage had gathered several addresses to send to
460 a host before calling the transport for the first, we previously failed
461 to close down TLS in the old transport process before passing the TCP
462 connection to the new process. The new one sent a STARTTLS command
463 which naturally failed, giving a failed delivery and bloating the retry
464 database. Investigation and fix prototype from Wolfgang Breyha.
465
40525d07
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466JH/12 Fix check on SMTP command input synchronisation. Previously there were
467 false-negatives in the check that the sender had not preempted a response
468 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 469 awareness of the SMTP input buffering.
40525d07 470
f33875c3
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471PP/04 Add commandline_checks_require_admin option.
472 Exim drops privileges sanely, various checks such as -be aren't a
473 security problem, as long as you trust local users with access to their
474 own account. When invoked by services which pass untrusted data to
475 Exim, this might be an issue. Set this option in main configuration
476 AND make fixes to the calling application, such as using `--` to stop
477 processing options.
478
a5ffa9b4
JH
479JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
480 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
481 responses to those, into a single TLS record each way (this usually means
482 a single packet). As a side issue, smtp_enforce_sync now works on TLS
483 connections.
925ac8e4 484
6600985a
PP
485PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
486 affects you only if you're dancing at the edge of the param size limits.
487 If you are, and this message makes sense to you, then: raise the
488 configured limit or use OpenSSL 1.1. Nothing we can do for older
489 versions.
490
ac4d558b
JH
491JH/14 For the "sock" variant of the malware scanner interface, accept an empty
492 cmdline element to get the documented default one. Previously it was
493 inaccessible.
494
e69636bc
JH
495JH/15 Fix a crash in the smtp transport caused when two hosts in succession
496 are unsuable for non-message-specific reasons - eg. connection timeout,
497 banner-time rejection.
498
a843a57e
JH
499JH/16 Fix logging of delivery remote port, when specified by router, under
500 callout/hold.
501
8e041ae0
PP
502PP/06 Repair manualroute's ability to take options in any order, even if one
503 is the name of a transport.
833c70bc
PP
504 Fixes bug 2140.
505
35a04365
HSHR
506HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
507
4226691b
JH
508JH/17 Change the list-building routines interface to use the expanding-string
509 triplet model, for better allocation and copying behaviour.
510
d185889f
JH
511JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
512 Previously it was constructed the first time a possibly-matching string
513 was met in the configuration file input during startup; now it is done
514 during compilation.
515
0a6c178c
JH
516JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
517 compatible one, to avoid the (poorly documented) possibility of a config
518 file in the working directory redirecting the DB files, possibly correpting
02745400 519 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 520
fae8970d
JH
521JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
522 cache-hot. Previously, although the result was properly cached, the
523 initial verify call returned a defer.
524
ad1a76fe 525JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
526 the main verify for receipient in uncached-mode.
527
ad1a76fe
JH
528JH/22 Retire historical build files to an "unsupported" subdir. These are
529 defined as "ones for which we have no current evidence of testing".
530
135e9496
JH
531JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
532 if present. Previously it was ignored.
533
f2ed27cf
JH
534JH/24 Start using specified-initialisers in C structure init coding. This is
535 a C99 feature (it's 2017, so now considered safe).
536
7eb0e5d2
JH
537JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
538 if was a fixed-sized field and bitmask ops via macros; it is now more
539 extensible.
540
4f9f4be4
541PP/07 GitHub PR 56: Apply MariaDB build fix.
542 Patch provided by Jaroslav Škarvada.
543
dc4de9cc
PP
544PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
545 during Coverity cleanups [4.87 JH/47]
546 Diagnosis and fix provided by Michael Fischer v. Mollard.
547
ea18931d
JH
548JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
549 the right size to place the terminating semicolon on its own folded
550 line, the header hash was calculated to an incorrect value thanks to
551 the (relaxed) space the fold became.
552
0768462d 553HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
554 and confused the parent.
555
848214f7
JH
556JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
557 which could crash as a result. This could lead to undeliverable messages.
558
9e0ed81f
JH
559JH/28 Logging: "next input sent too soon" now shows where input was truncated
560 for log purposes.
561
2540f2f8
JH
562JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
563 matters on fast-turnover and PID-randomising systems, which were getting
564 out-of-order delivery.
565
e5ab0ba9
JH
566JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
567 a possibly-overlapping copy. The symptom was that "Remote host closed
568 connection in response to HELO" was logged instead of the actual 4xx
569 error for the HELO.
570
e99a3a6c
JH
571JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
572 Previously only that bufferd was discarded, resulting in SYMTP command
573 desynchronisation.
574
18067c75
JH
575JH/32 DKIM: when a message has multiple signatures matching an identity given
576 in dkim_verify_signers, run the dkim acl once for each. Previously only
577 one run was done. Bug 2189.
578
72934ba7
JH
579JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
580 "panic the current process" to "deliberately defer". The panic log is
581 still written with the problem list name; the mail and reject logs now
582 get a temp-reject line for the message that was being handled, saying
583 something like "domains check lookup or other defer". The SMTP 451
584 message is still "Temporary local problem".
585
625667b6
JH
586JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
587 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
588 freed. CVE-2017-16943.
589
590HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
591 from SMTP input. Previously it was always done; now only done for DATA
592 and not BDAT commands. CVE-2017-16944.
625667b6 593
d21bf202
JH
594JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
595 to the message (such as an overlong header line). Previously this was
596 not done and we did not exit BDAT mode. Followon from the previous item
597 though a different problem.
598
acfc18c3 599
fd047340 600Exim version 4.89
acfc18c3 601-----------------
4c57a40e 602
9427e879 603JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 604 than -2003 did; needs libidn2 in addition to libidn.
fd047340 605
7b283890
JH
606JH/02 The path option on a pipe transport is now expanded before use.
607
4c57a40e
PP
608PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
609 Patch provided by "Björn", documentation fix added too.
610
5d036699
JH
611JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
612 missing a wire-to-host endian conversion.
613
f4630439
JH
614JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
615 close after a BDAT command line could be taken as a following command,
616 giving a synch failure. Fix by only checking for synch immediately
617 before acknowledging the chunk.
618
f988ce57
JS
619PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
620 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
621 macro. Patches provided by Josh Soref.
622
bd8fbe36
JH
623JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
624 Previously we did not; the RFC seems ambiguous and VRFY is not listed
625 by IANA as a service extension. However, John Klensin suggests that we
626 should.
627
628JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
629 the dkim code may be unix-mode line endings rather than smtp wire-format
630 CRLF, so prepend a CR to any bare LF.
fd047340 631
bd8fbe36 632JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
633 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
634
bd8fbe36
JH
635JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
636 the first were themselves being wrongly included in the feed into dkim
637 processing; with most chunk sizes in use this resulted in an incorrect
638 body hash calculated value.
639
eea19017
JH
640JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
641 DKIM signature block, for verification. Although advised against by
642 standards it is specifically not ruled illegal.
643
44e6651b
JH
644JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
645
646JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
647 missing a body hash (the bh= tag).
648
649JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
650 It seems that HAProxy sends the Proxy Protocol information in clear and
651 only then does a TLS startup, so do the same.
652
653JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
654 TCP connections (such as for Spamd) unless the daemon successfully set
655 Fast Open mode on its listening sockets. This fixes breakage seen on
656 too-old kernels or those not configured for Fast Open, at the cost of
657 requiring both directions being enabled for TFO, and TFO never being used
658 by non-daemon-related Exim processes.
659
660JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
661 endings, at least on the first header line. Try to canonify any that get
662 past that check, despite the cost.
663
b6040544
JH
664JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
665 now limited to an arbitrary five deep, while parsing addresses with the
666 strip_excess_angle_brackets option enabled.
667
f700ea4d
PP
668PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
669 instead leave the unprompted TLS handshake in socket buffer for the
670 TLS library to consume.
671
da88acae
PP
672PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
673
f6ef9370
PP
674PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
675
90341c71
JH
676JH/16 Drop variables when they go out of scope. Memory management drops a whole
677 region in one operation, for speed, and this leaves assigned pointers
678 dangling. Add checks run only under the testsuite which checks all
679 variables at a store-reset and panics on a dangling pointer; add code
680 explicitly nulling out all the variables discovered. Fixes one known
681 bug: a transport crash, where a dangling pointer for $sending_ip_address
682 originally assigned in a verify callout, is re-used.
683
1ec2ab36
PP
684PP/06 Drop '.' from @INC in various Perl scripts.
685
686PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
687
688PP/08 Reduce a number of compilation warnings under clang; building with
689 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
690 should be warning-free.
691
8b2b9480
PP
692JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
693
694HS/01 Fix portability problems introduced by PP/08 for platforms where
695 realloc(NULL) is not equivalent to malloc() [SunOS et al].
696
d953610f
HSHR
697HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
698 chunk. This allows us to accept broken chunked messages. We need a more
699 general solution here.
700
7dc5f827
PP
701PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
702 already-broken messages in the queue.
703
4bb432cb
PP
704JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
705
3b1a84c8
PP
706JH/19 Fix reference counting bug in routing-generated-address tracking.
707
902fbd69 708
8d042305
JH
709Exim version 4.88
710-----------------
4c57a40e 711
9094b84b
JH
712JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
713 supports it and a size is available (ie. the sending peer gave us one).
8d042305 714
03d5892b
JH
715JH/02 The obsolete acl condition "demime" is removed (finally, after ten
716 years of being deprecated). The replacements are the ACLs
717 acl_smtp_mime and acl_not_smtp_mime.
718
4b0fe319
JH
719JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
720 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
721 or even an in-clear connection were permitted. Now, if the host lookup
722 was dnssec and dane was requested then the host is only used if the
723 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
724 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
725 if one fails this test.
726 This means that a poorly-configured remote DNS will make it incommunicado;
727 but it protects against a DNS-interception attack on it.
728
789f8a4f
JH
729JH/04 Bug 1810: make continued-use of an open smtp transport connection
730 non-noisy when a race steals the message being considered.
731
23bb6982 732JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 733 self-signed certificate for inbound TLS connections.
23bb6982 734
0bd1b1ed 735JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 736 in rewrites and routers.
0bd1b1ed 737
20b9a2dc
JH
738JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
739 and logged a warning sing 4.83; now they are a configuration file error.
740
05392bbc
JH
741JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
742 (lacking @domain). Apply the same qualification processing as RCPT.
743
1a6230a3
JH
744JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
745
cfab9d68
JH
746JH/10 Support ${sha256:} applied to a string (as well as the previous
747 certificate).
748
98c82a3d
JH
749JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
750 a cutthrough deliver is pending, as we always want to make a connection.
751 This also avoids re-routing the message when later placing the cutthrough
752 connection after a verify cache hit.
753 Do not update it with the verify result either.
754
755JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
756 when routing results in more than one destination address.
757
ae8386f0
JH
758JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
759 signing (which inhibits the cutthrough capability). Previously only
760 the presence of an option was tested; now an expansion evaluating as
761 empty is permissible (obviously it should depend only on data available
762 when the cutthrough connection is made).
763
0d9fa8c0
JH
764JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
765 the relevant preceding SMTP command did not note the pipelining mode.
766
3581f321
JH
767JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
768 Previously they were not counted.
769
ef3a1a30
JH
770JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
771 as one having no matching records. Previously we deferred the message
772 that needed the lookup.
773
4c04137d 774JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
775 distinguished as "(=".
776
1435d4b2
JH
777JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
778 for missing MX records. Previously it only worked for missing A records.
779
eea0defe
JB
780JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
781
782JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
783 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 784
4c04137d 785JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
786 even for a "none" policy. Patch from Tony Meyer.
787
1c788856
JH
788JH/22 Fix continued use of a connection for further deliveries. If a port was
789 specified by a router, it must also match for the delivery to be
790 compatible.
791
e3b1f624
JH
792JH/23 Bug 1874: fix continued use of a connection for further deliveries.
793 When one of the recipients of a message was unsuitable for the connection
794 (has no matching addresses), we lost track of needing to mark it
795 deferred. As a result mail would be lost.
796
a57ce043
JH
797JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
798
f59aaaaa 799JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
800 takes up less space and should be simpler to maintain. Merge the ACL
801 condition decode tables also, with similar effect.
d7bed771 802
d1f9fb42
JH
803JH/26 Fix problem with one_time used on a redirect router which returned the
804 parent address unchanged. A retry would see the parent address marked as
805 delivered, so not attempt the (identical) child. As a result mail would
806 be lost.
807
92b0827a
JH
808JH/27 Fix a possible security hole, wherein a process operating with the Exim
809 UID can gain a root shell. Credit to http://www.halfdog.net/ for
810 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
811 itself :(
812
ddf1b11a
JH
813JH/28 Enable {spool,log} filesystem space and inode checks as default.
814 Main config options check_{log,spool}_{inodes,space} are now
815 100 inodes, 10MB unless set otherwise in the configuration.
816
3cc3f762
JH
817JH/29 Fix the connection_reject log selector to apply to the connect ACL.
818 Previously it only applied to the main-section connection policy
819 options.
820
ae5afa61
JH
821JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
822
317e40ac
PP
823PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
824 by me. Added RFC7919 DH primes as an alternative.
825
8b0fb68e
PP
826PP/02 Unbreak build via pkg-config with new hash support when crypto headers
827 are not in the system include path.
828
ad7fc6eb 829JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 830 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
831 Exim did stdio operations after fclose. This was exposed by a recent
832 change which nulled out the file handle after the fclose.
ad7fc6eb 833
ee5b1e28
JH
834JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
835 signed directly by the cert-signing cert, rather than an intermediate
836 OCSP-signing cert. This is the model used by LetsEncrypt.
837
5ddc9771
JH
838JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
839
8d73599f
JH
840HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
841 an incoming connection.
842
446415f5
HSHR
843HS/02 Bug 1802: Do not half-close the connection after sending a request
844 to rspamd.
845
8e53a4fc
HSHR
846HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
847 fallback to "prime256v1".
8d042305 848
87cb4a16 849JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 850 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
851
852
0d9b78be
JH
853Exim version 4.87
854-----------------
4c57a40e 855
82d14d6a
JH
856JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
857 and 3.4.4 - once the server is enabled to respond to an OCSP request
858 it does even when not requested, resulting in a stapling non-aware
859 client dropping the TLS connection.
0d9b78be 860
6c6d6e48
TF
861TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
862 support variable-length bit vectors. No functional change.
863
ac881e27
TF
864TF/02 Improve the consistency of logging incoming and outgoing interfaces.
865 The I= interface field on outgoing lines is now after the H= remote
866 host field, same as incoming lines. There is a separate
867 outgoing_interface log selector which allows you to disable the
868 outgoing I= field.
869
c8899c20
JH
870JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
871 If not running log_selector +smtp_connection the mainlog would be held
872 open indefinitely after a "too many connections" event, including to a
873 deleted file after a log rotate. Leave the per net connection logging
874 leaving it open for efficiency as that will be quickly detected by the
875 check on the next write.
876
f1b81d81
HSHR
877HS/01 Bug 1671: Fix post transport crash.
878 Processing the wait-<transport> messages could crash the delivery
879 process if the message IDs didn't exist for some reason. When
880 using 'split_spool_directory=yes' the construction of the spool
881 file name failed already, exposing the same netto behaviour.
882
f38917cc
JH
883JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
884 mime_regex ACL conditions.
885
895fbaf2
JH
886JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
887 to DSN fail messages (bounces): remote IP, remote greeting, remote response
888 to HELO, local diagnostic string.
889
805bb5c3
JH
890JH/05 Downgrade message for a TLS-certificate-based authentication fail from
891 log line to debug. Even when configured with a tls authenticator many
892 client connections are expected to not authenticate in this way, so
893 an authenticate fail is not an error.
894
56c2a7be
HSHR
895HS/02 Add the Exim version string to the process info. This way exiwhat
896 gives some more detail about the running daemon.
897
4c04137d 898JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
899 matter for fast-change records such as DNSBLs.
900
6f6dedcc
JH
901JH/07 Bug 1678: Always record an interface option value, if set, as part of a
902 retry record, even if constant. There may be multiple transports with
903 different interface settings and the retry behaviour needs to be kept
904 distinct.
905
0f557e90
JH
906JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
907
908JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
909
ec0eb1a3
JH
910JH/10 Bug 840: fix log_defer_output option of pipe transport
911
41e93589
JH
912JH/11 Bug 830: use same host for all RCPTS of a message, even under
913 hosts_randomize. This matters a lot when combined with mua_wrapper.
914
98b98887 915JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
916 ${quote_pgsql:<string>} operator.
917
98b98887
JH
918JH/13 Bug 1708: avoid misaligned access in cached lookup.
919
858e91c2
JH
920JH/14 Change header file name for freeradius-client. Relevant if compiling
921 with Radius support; from the Gentoo tree and checked under Fedora.
922
923JH/15 Bug 1712: Introduce $prdr_requested flag variable
924
6ff55e50
JH
925JH/16 Bug 1714: Permit an empty string as expansion result for transport
926 option transport_filter, meaning no filtering.
927
3b957582
JB
928JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
929
23f3dc67
JH
930JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
931 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 932 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
933 If a server certificate is not supplied (via tls_certificate) an error is
934 logged, and clients will find TLS connections fail on startup. Presumably
935 they will retry in-clear.
936 Packagers of Exim are strongly encouraged to create a server certificate
937 at installation time.
938
240c288f
JH
939HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
940 with the $config_file variable.
941
5ef5dd52
JB
942JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
943 in transport context, after the attempt, and per-recipient. The latter type
944 is per host attempted. The event data is the error message, and the errno
945 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 946 and the trailing two digits of the smtp 4xx response.
5ef5dd52 947
e161710d
GF
948GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
949 to write to mainlog (or rejectlog, paniclog) in the window between file
950 creation and permissions/ownership being changed. Particularly affects
951 installations where exicyclog is run as root, rather than exim user;
952 result is that the running daemon panics and dies.
953
a159f203
JH
954JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
955
7f06582c
JH
956JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
957 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
958 "pri" and "weight". Note that the previous implicit priority given by the
959 list order is no longer honoured.
960
4c04137d 961JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
962 for DKIM processing.
963
f0989ec0
JH
964JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
965 by defining SUPPORT_SOCKS.
74f150bf 966
cee5f132
JH
967JH/26 Move PROXY support from Experimental to mainline, enabled for a build
968 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
969 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
970 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 971
8c5d388a
JH
972JH/27 Move Internationalisation support from Experimental to mainline, enabled
973 for a build by defining SUPPORT_I18N
974
2d8d625b
JH
975JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
976 of the query string, and make ${quote_redis:} do that quoting.
977
0cbf2b82
JH
978JH/29 Move Events support from Experimental to mainline, enabled by default
979 and removable for a build by defining DISABLE_EVENT.
980
f2f2c91b
JH
981JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
982
ce325893
JH
983JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
984 cached by the daemon.
985
de78e2d5
JH
986JH/32 Move Redis support from Experimental to mainline, enabled for a build
987 by defining LOOKUP_REDIS. The libhiredis library is required.
988
379ba7d0
JH
989JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
990 keys are given for lookup.
991
f444c2c7
JH
992JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
993 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
994 only supported when built with TLS support. The PolarSSL SHA routines
995 are still used when the TLS library is too old for convenient support.
f444c2c7 996
a57b6200
JH
997JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
998 openssl_options), for security. OpenSSL forces this from version 1.1.0
999 server-side so match that on older versions.
1000
07c73177 1001JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1002 allocation for $value could be released as the expansion processing
07c73177 1003 concluded, but leaving the global pointer active for it.
fa01e4f8 1004
4f6ae5c3
JH
1005JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1006 and to use the domains and local_parts ACL conditions.
1007
1bc460a6
JH
1008JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1009 incorrectly not doubled on cutthrough transmission, hence seen as a
1010 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1011 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1012 via the normal store-and-forward channel. This could result in duplicates
1013 received - but deduplicating mailstores were liable to retain only the
1014 initial truncated version.
1015
ab9152ff 1016JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1017
67e87fcf
JH
1018JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1019
ab9152ff
JH
1020JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1021 we're in there, support oversigning also; bug 1309.
1022
af483912
JH
1023JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1024
bc3c7bb7 1025HS/04 Add support for keep_environment and add_environment options.
df3def24 1026
13559da6
JH
1027JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1028 either intentional arithmetic overflow during PRNG, or testing config-
1029 induced overflows.
1030
59eaad2b
JH
1031JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1032 delivery resulted in actual delivery. Cancel cutthrough before DATA
1033 stage.
1034
f9334a28
JH
1035JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1036 rejects a recipient: pass the reject to the originator.
1037
dc8091e7
JH
1038JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1039 Many were false-positives and ignorable, but it's worth fixing the
1040 former class.
1041
dfe7d917
JH
1042JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1043 for the new environment-manipulation done at startup. Move the routines
1044 from being local to tls.c to being global via the os.c file.
1045
93cc2d6e
JH
1046JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1047 an extract embedded as result-arg for a map, the first arg for extract
1048 is unavailable so we cannot tell if this is a numbered or keyed
1049 extraction. Accept either.
1050
13559da6 1051
9c695f6d
JH
1052Exim version 4.86
1053-----------------
4c57a40e 1054
9c695f6d
JH
1055JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1056 expanded.
1057
506900af
JH
1058JH/02 The smtp transport option "multi_domain" is now expanded.
1059
ad07e9ad
JH
1060JH/03 The smtp transport now requests PRDR by default, if the server offers
1061 it.
1062
01a4a5c5 1063JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1064 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1065 can be used to disable this per-host. The build option
1066 EXPERIMENTAL_CERTNAMES is withdrawn.
1067
cb1d7830 1068JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1069 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1070 For GnuTLS, only version 3.0.20 or later.
1071
610ff438 1072JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1073 (but not required) by default. The verification status is now logged by
1074 default, for both outbound TLS and client-certificate supplying inbound
1075 TLS connections
610ff438 1076
f926e272
JH
1077JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1078 sites use this now.
1079
50dc7409
JH
1080JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1081 Status Notification (bounce) messages are now MIME format per RFC 3464.
1082 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1083 under the control of the dsn_advertise_hosts option, and routers may
1084 have a dsn_lasthop option.
1085
0f0c8159
JH
1086JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1087 default, modifiable by a malware= option. The list separator for
23763898 1088 the options can now be changed in the usual way. Bug 68.
4e71661f 1089
1ad6489e
JH
1090JH/10 The smtp_receive_timeout main option is now expanded before use.
1091
aeaf5db3
JH
1092JH/11 The incoming_interface log option now also enables logging of the
1093 local interface on delivery outgoing connections.
1094
5032d1cf
JH
1095JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1096 if the interface and destination host and port all match.
1097
7e8360e6
JH
1098JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1099 /defer_ok option.
1100
c5f280e2
AL
1101JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1102 Patch from Andrew Lewis.
1103
fd4d8871 1104JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1105 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1106 modifiers per server. Patch originally by <rommer@active.by>.
1107
1108JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1109 and remote servers. Remote servers can be IPv6 addresses, and
1110 specify a port-range.
fd4d8871 1111
23763898
JH
1112JH/17 Bug 68: The spamd_address main option now supports an optional
1113 timeout value per server.
1114
2ad78978
JH
1115JH/18 Bug 1581: Router and transport options headers_add/remove can
1116 now have the list separator specified.
1117
8a512ed5 1118JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1119 option values.
8a512ed5 1120
82c0c8ea 1121JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1122 under OpenSSL.
1123
cc00f4af
JH
1124JH/21 Support for the A6 type of dns record is withdrawn.
1125
82c0c8ea
JH
1126JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1127 rather than the verbs used.
1128
b980ed83
JH
1129JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1130 from 255 to 1024 chars.
1131
6c9ed72e
JH
1132JH/24 Verification callouts now attempt to use TLS by default.
1133
cfab9d68 1134HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1135 are generic router options now. The defaults didn't change.
50dc7409 1136
f846c8f5
JH
1137JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1138 Original patch from Alexander Shikoff, worked over by JH.
1139
fd4c285c
HSHR
1140HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1141 files if ZCAT_COMMAND is not executable.
1142
4c04137d 1143JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1144
d2a2c69b
JH
1145JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1146
8241d8dd
JH
1147JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1148 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1149 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1150 (and we were inconsistent anyway for A-only vs AAAA+A).
1151
1f12df4d
JH
1152JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1153
1f155f8e
JH
1154JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1155 when evaluating $sender_host_dnssec.
1156
1705dd20
JH
1157JH/31 Check the HELO verification lookup for DNSSEC, adding new
1158 $sender_helo_dnssec variable.
1159
038597d2
PP
1160JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1161
474f71bf
JH
1162JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1163
7137ca4b
JH
1164JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1165
dcb1095c
JH
1166JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1167 documented as working, but never had. Support all but $spam_report.
1168
2f460950
JH
1169JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1170 added for tls authenticator.
1171
2f680c0c
HSHR
1172HS/03 Add perl_taintmode main config option
1173
9c695f6d 1174
e449c3b0
TL
1175Exim version 4.85
1176-----------------
4c57a40e 1177
e449c3b0
TL
1178TL/01 When running the test suite, the README says that variables such as
1179 no_msglog_check are global and can be placed anywhere in a specific
1180 test's script, however it was observed that placement needed to be near
1181 the beginning for it to behave that way. Changed the runtest perl
1182 script to read through the entire script once to detect and set these
1183 variables, reset to the beginning of the script, and then run through
1184 the script parsing/test process like normal.
1185
ac20058f
TL
1186TL/02 The BSD's have an arc4random API. One of the functions to induce
1187 adding randomness was arc4random_stir(), but it has been removed in
1188 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1189 function when detected.
1190
a9b8ec8b
JH
1191JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1192 cause callback expansion.
1193
6286d7c4
TL
1194TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1195 syntax errors in an expansion can be treated as a string instead of
1196 logging or causing an error, due to the internal use of bool_lax
1197 instead of bool when processing it.
1198
0f06b4f2 1199JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1200 server certificates when making smtp deliveries.
1201
be36e572
JH
1202JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1203
ac4ef9bd
JH
1204JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1205
0eb51736
TL
1206TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1207
c713ca4b
TL
1208TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1209 Merged patch from Sebastian Wiedenroth.
e449c3b0 1210
bd21a787
WB
1211JH/05 Fix results-pipe from transport process. Several recipients, combined
1212 with certificate use, exposed issues where response data items split
1213 over buffer boundaries were not parsed properly. This eventually
1214 resulted in duplicates being sent. This issue only became common enough
4c04137d 1215 to notice due to the introduction of connection certificate information,
bd21a787
WB
1216 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1217
8bc732e8
JH
1218JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1219 size buffer was used, resulting in syntax errors when an expansion
1220 exceeded it.
1221
a7fec7a7
JH
1222JH/07 Add support for directories of certificates when compiled with a GnuTLS
1223 version 3.3.6 or later.
1224
4c04137d 1225JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1226 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1227 both become "event_action", the variables become $event_name, $event_data
aec45841 1228 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1229 routers, transports and related events. The tls:cert event is now also
1230 raised for inbound connections, if the main configuration event_action
1231 option is defined.
774ef2d7 1232
eca4debb
TL
1233TL/06 In test suite, disable OCSP for old versions of openssl which contained
1234 early OCSP support, but no stapling (appears to be less than 1.0.0).
1235
8d692470
JH
1236JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1237 server certificate names available under the smtp transport option
1238 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1239 matches.
1240
e9477a08
JH
1241JH/10 Time-related extraction expansions from certificates now use the main
1242 option "timezone" setting for output formatting, and are consistent
1243 between OpenSSL and GnuTLS compilations. Bug 1541.
1244
ad4c5ff9
JH
1245JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1246 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1247
1248JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1249 include certificate info, eximon was claiming there were spoolfile
1250 syntax errors.
1251
3394b36a 1252JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1253
1254JH/14 Log delivery-related information more consistently, using the sequence
1255 "H=<name> [<ip>]" wherever possible.
1256
3394b36a
TL
1257TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1258 are problematic for Debian distribution, omit them from the release
1259 tarball.
1260
ad4c5ff9
JH
1261JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1262
4c04137d 1263JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1264 Bug 1561.
1265
1266JH/17 Fix a null-indirection in certextract expansions when a nondefault
1267 output list separator was used.
1268
8bc732e8 1269
1f0ebb98
TL
1270Exim version 4.84
1271-----------------
09728d20
TL
1272TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1273 checkers that were complaining about end of non-void function with no
1274 return.
1f0ebb98 1275
a612424f 1276JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1277 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1278
1279JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1280
1281TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1282 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1283
1f0ebb98 1284
c0e56233
TF
1285Exim version 4.83
1286-----------------
1287
1288TF/01 Correctly close the server side of TLS when forking for delivery.
1289
1290 When a message was received over SMTP with TLS, Exim failed to clear up
1291 the incoming connection properly after forking off the child process to
1292 deliver the message. In some situations the subsequent outgoing
1293 delivery connection happened to have the same fd number as the incoming
1294 connection previously had. Exim would try to use TLS and fail, logging
1295 a "Bad file descriptor" error.
1296
7245734e
TF
1297TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1298 utilities have not been installed.
1299
fd5dad68
JH
1300JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1301 temporary space as the ACL may create new global variables.
1302
5428a946
TL
1303TL/01 LDAP support uses per connection or global context settings, depending
1304 upon the detected version of the libraries at build time.
1305
a3c86431
TL
1306TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1307 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1308 were a direct connection from the outside internet. PPv2 support was
1309 updated based on HAProxy spec change in May 2014.
a3c86431 1310
aa26e137
JH
1311JH/02 Add ${listextract {number}{list}{success}{fail}}.
1312
5a1b8443
WB
1313TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1314 Properly escape header and check for NULL return.
1315
72c9e342
PP
1316PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1317 not dns_use_dnssec.
1318
76f44207
WB
1319JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1320
770747fd
MFM
1321TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1322 characters in header names, implemented as a verify condition.
1323 Contributed by Michael Fischer v. Mollard.
1324
8ddef691 1325TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1326 results permerror and temperror. Previous values are deprecated but
1327 still accepted. In a future release, err_perm and err_temp will be
1328 completely removed, which will be a backward incompatibility if the
1329 ACL tests for either of these two old results. Patch contributed by
8ddef691 1330 user bes-internal on the mailing list.
c0e56233 1331
b9c2e32f
AR
1332JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1333
e45a1c37
JH
1334JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1335 selectors, in both main and reject logs.
1336
67d81c10
JH
1337JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1338 failed delivery.
1339
b1f8e4f8
JH
1340JH/07 Add malware type "sock" for talking to simple daemon.
1341
511a6c14 1342JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1343
1344JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1345 routers/transports under cutthrough routing.
214042d2 1346
51c7471d
JH
1347JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1348 numbers. Touch up "bool" conditional to keep the same definition.
1349
3695be34
TL
1350TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1351
1e06383a
TL
1352JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1353
76146973
JH
1354JH/12 Expand items in router/transport headers_add or headers_remove lists
1355 individually rather than the list as a whole. Bug 1452.
1356
1357 Required for reasonable handling of multiple headers_ options when
1358 they may be empty; requires that headers_remove items with embedded
1359 colons must have them doubled (or the list-separator changed).
1360
8c8b8274
TL
1361TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1362 view the policy declared in the DMARC record. Currently, $dmarc_status
1363 is a combined value of both the record presence and the result of the
1364 analysis.
b1f8e4f8 1365
35aba663
JH
1366JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1367
8c51eead 1368JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1369 dnslookup router and the smtp transport (applying to the forward
1370 lookup).
8c51eead 1371
deae092e
HS
1372TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1373 of ldap servers used for a specific lookup. Patch provided by Heiko
1374 Schlichting.
35aba663 1375
fd3b6a4a 1376JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1377 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1378
8d91c6dc
LT
1379TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1380 Patch submitted by Lars Timman.
1381
2b4a568d
JH
1382JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1383
d2af03f4
HS
1384TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1385 Requires trusted mode and valid format message id, aborts otherwise.
1386 Patch contributed by Heiko Schlichting.
1387
9d1c15ef
JH
1388JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1389 certextract with support for various fields. Bug 1358.
1390
44662487
JH
1391JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1392 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1393 hosts_request_ocsp.
1394
ed3bba5f 1395JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1396 operate on certificate variables to give certificate fingerprints
9ef9101c 1397 Also new ${sha256:cert_variable}.
44662487 1398
8ccd00b1
JH
1399JH/23 The PRDR feature is moved from being Experimental into the mainline.
1400
8ded8589
TL
1401TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1402 Christian Aistleitner.
1403
f2de3a33
JH
1404JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1405
6eb02f88
TL
1406TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1407 file. Patch from Wolfgang Breyha.
1408
00bff6f6
JH
1409JH/25 Expand the coverage of the delivery $host and $host_address to
1410 client authenticators run in verify callout. Bug 1476.
1411
071c51f7
JH
1412JH/26 Port service names are now accepted for tls_on_connect_ports, to
1413 align with daemon_smtp_ports. Bug 72.
1414
a6d4c44e
TF
1415TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1416 support and error reporting did not work properly.
1417
3ae173e7
ACK
1418TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1419 and is readable. Patch from Andrew Colin Kissa.
1420
c13d09b8
TL
1421TL/14 Enhance documentation of ${run expansion and how it parses the
1422 commandline after expansion, particularly in the case when an
1423 unquoted variable expansion results in an empty value.
1424
0df4ab80
JH
1425JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1426
66be95e0
PP
1427PP/02 Fix internal collision of T_APL on systems which support RFC3123
1428 by renaming away from it. Addresses GH issue 15, reported by
1429 Jasper Wallace.
1430
1bd0d12b
JH
1431JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1432
0de7239e
TL
1433TL/15 SECURITY: prevent double expansion in math comparison functions
1434 (can expand unsanitized data). Not remotely exploitable.
1435 CVE-2014-2972
1436
fd3b6a4a 1437
2c422e6f 1438Exim version 4.82
98a90c36
PP
1439-----------------
1440
1441PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1442
12f69989
PP
1443PP/02 Make -n do something, by making it not do something.
1444 When combined with -bP, the name of an option is not output.
1445
54c90be1
PP
1446PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1447 by GnuTLS.
1448
1f4a55da
PP
1449PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1450 $sender_host_name and config options to manage this, and basic check
1451 routines.
1452
13363eba 1453PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1454
66645890 1455PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1456 (Only plugin which currently uses this is kerberos4, which nobody should
1457 be using, but we should make it available and other future plugins might
1458 conceivably use it, even though it would break NAT; stuff *should* be
1459 using channel bindings instead).
66645890 1460
a3fb9793 1461PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1462 name; added for Sendmail compatibility; requires admin caller.
1463 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1464 just ignore it); requires trusted caller.
a3fb9793 1465 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1466 Bugzilla 1117.
a3fb9793 1467
d27f98fe 1468TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1469
6822b909
TL
1470TL/02 Add +smtp_confirmation as a default logging option.
1471
e7568d51
TL
1472TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1473 Patch by Magnus Holmgren from 2007-02-20.
1474
ae0e32ee 1475TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1476 Bugzilla 1283 - Spec typo.
97f42f10 1477 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1478
1479TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1480
e2658fff
TL
1481TL/06 Add Experimental DMARC support using libopendmarc libraries.
1482
83712b39
TL
1483TL/07 Fix an out of order global option causing a segfault. Reported to dev
1484 mailing list by by Dmitry Isaikin.
1485
976b7e9f
JH
1486JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1487
be4a1376
JH
1488JH/02 Support "G" suffix to numbers in ${if comparisons.
1489
ec4b68e5
PP
1490PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1491
d7148a07
NM
1492NM/01 Bugzilla 1197 - Spec typo
1493 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1494
585121e2 1495JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1496
2519e60d
TL
1497PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1498 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1499 function.
a5f239e4 1500
13d08c90
PP
1501PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1502 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1503
bef3ea7f
JH
1504JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1505 "acl {{name}{arg}...}", and optional args on acl condition
1506 "acl = name arg..."
a5f239e4 1507
846726c5
JH
1508JH/05 Permit multiple router/transport headers_add/remove lines.
1509
3a796370
JH
1510JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1511
ea722490 1512JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1513 Performance patch from Paul Fisher. Bugzilla 1262.
1514
b1b05573
JH
1515JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1516 Bugzilla 884.
1517
362145b5
JH
1518JH/09 Add $headers_added variable, with content from use of ACL modifier
1519 add_header (but not yet added to the message). Bugzilla 199.
1520
3c0a92dc
JH
1521JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1522 Pulled from Bugzilla 817 by Wolfgang Breyha.
1523
6d7c6175
PP
1524PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1525 CVE-2012-5671
e78e6ecf 1526 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1527
6f123593
JH
1528JH/11 Add A= logging on delivery lines, and a client_set_id option on
1529 authenticators.
1530
c8e2fc1e
JH
1531JH/12 Add optional authenticated_sender logging to A= and a log_selector
1532 for control.
1533
005ac57f
PP
1534PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1535
3f1df0e3
PP
1536PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1537 advertise SMTP AUTH mechanism to us, instead of a generic
1538 protocol violation error. Also, make Exim more robust to bad
1539 data from the Dovecot auth socket.
1540
67bd1ab3
TF
1541TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1542
1543 When a queue runner is handling a message, Exim first routes the
1544 recipient addresses, during which it prunes them based on the retry
1545 hints database. After that it attempts to deliver the message to
1546 any remaining recipients. It then updates the hints database using
1547 the retry rules.
1548
1549 So if a recipient address works intermittently, it can get repeatedly
1550 deferred at routing time. The retry hints record remains fresh so the
1551 address never reaches the final cutoff time.
1552
1553 This is a fairly common occurrence when a user is bumping up against
1554 their storage quota. Exim had some logic in its local delivery code
1555 to deal with this. However it did not apply to per-recipient defers
1556 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1557
1ddeb334
TF
1558 This change adds a proper retry rule check during routing so that the
1559 final cutoff time is checked against the message's age. We only do
1560 this check if there is an address retry record and there is not a
1561 domain retry record; this implies that previous attempts to handle
1562 the address had the retry_use_local_parts option turned on. We use
1563 this as an approximation for the destination being like a local
1564 delivery, as in LMTP.
67bd1ab3
TF
1565
1566 I suspect this new check makes the old local delivery cutoff check
1567 redundant, but I have not verified this so I left the code in place.
1568
326cdc37
TF
1569TF/02 Correct gecos expansion when From: is a prefix of the username.
1570
1571 Test 0254 submits a message to Exim with the header
1572
1573 Resent-From: f
1574
1575 When I ran the test suite under the user fanf2, Exim expanded
1576 the header to contain my full name, whereas it should have added
1577 a Resent-Sender: header. It erroneously treats any prefix of the
1578 username as equal to the username.
1579
1580 This change corrects that bug.
1581
f62514b3
GF
1582GF/01 DCC debug and logging tidyup
1583 Error conditions log to paniclog rather than rejectlog.
1584 Debug lines prefixed by "DCC: " to remove any ambiguity.
1585
eb505532
TF
1586TF/03 Avoid unnecessary rebuilds of lookup-related code.
1587
14c7b357
PP
1588PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1589 Bug spotted by Jeremy Harris; was flawed since initial commit.
1590 Would have resulted in OCSP responses post-SNI triggering an Exim
1591 NULL dereference and crash.
1592
94eaf700
PP
1593JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1594
6f5a440a
PP
1595PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1596 Bug detection, analysis and fix by Samuel Thibault.
1597 Bugzilla 1331, Debian bug #698092.
1598
514ee161
SC
1599SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1600
fd98a5c6
JH
1601JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1602 Server implementation by Todd Lyons, client by JH.
1603 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1604 config variable "prdr_enable" controls whether the server
1605 advertises the facility. If the client requests PRDR a new
1606 acl_data_smtp_prdr ACL is called once for each recipient, after
1607 the body content is received and before the acl_smtp_data ACL.
4c04137d 1608 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1609 on the smtp transport, and the server advertisement.
1610 Default client logging of deliveries and rejections involving
1611 PRDR are flagged with the string "PRDR".
1612
035c7f1e
PP
1613PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1614 fclose(). Diagnosis by Todd Lyons.
1615
ff284120
PP
1616PP/17 Update configure.default to handle IPv6 localhost better.
1617 Patch by Alain Williams (plus minor tweaks).
1618 Bugzilla 880.
1619
26e72755
PP
1620PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1621 This is now consistent with GnuTLS, and is now documented: the
1622 previous undocumented portable approach to treating the option as
1623 unset was to force an expansion failure. That still works, and
1624 an empty string is now equivalent.
1625
0fbd9bff
PP
1626PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1627 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1628 not performing validation itself.
1629
700d22f3
PP
1630PP/20 Added force_command boolean option to pipe transport.
1631 Patch from Nick Koston, of cPanel Inc.
1632
fcc8e047
JH
1633JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1634 Bugzilla 321, 823.
1635
4c04137d 1636TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1637
8c020188
PP
1638PP/21 Fix eximon continuous updating with timestamped log-files.
1639 Broken in a format-string cleanup in 4.80, missed when I repaired the
1640 other false fix of the same issue.
1641 Report and fix from Heiko Schlichting.
1642 Bugzilla 1363.
1643
d13cdd30
PP
1644PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1645 Report from Prashanth Katuri.
1646
e2fbf4a2
PP
1647PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1648 It's SecureTransport, so affects any MacOS clients which use the
1649 system-integrated TLS libraries, including email clients.
1650
f4c1088b
PP
1651PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1652 using a MIME ACL for non-SMTP local injection.
1653 Report and assistance in diagnosis by Warren Baker.
1654
c5c2182f
PP
1655TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1656
73431ca9
JH
1657JH/16 Fix comparisons for 64b. Bugzilla 1385.
1658
2d07a215
TL
1659TL/09 Add expansion variable $authenticated_fail_id to keep track of
1660 last id that failed so it may be referenced in subsequent ACL's.
1661
a30a8861
TL
1662TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1663 Alexander Miroch.
1664
33382dd9
TL
1665TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1666 ldap library initialization, allowing self-signed CA's to be
1667 used. Also properly sets require_cert option later in code by
1668 using NULL (global ldap config) instead of ldap handle (per
1669 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1670
046172e6
TL
1671TL/12 Enhanced documentation in the ratelimit.pl script provided in
1672 the src/util/ subdirectory.
1673
581d7bee 1674TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1675 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1676 EXPERIMENTAL_TPDA.
1677
1678TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1679 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1680 redis_servers = needs to be configured which will be used by the redis
1681 lookup. Patch from Warren Baker, of The Packet Hub.
1682
237b2cf2
TL
1683TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1684
9fc5a352
TL
1685TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1686 hostname or reverse DNS when processing a host list. Used suggestions
1687 from multiple comments on this bug.
1a7b746d 1688
b10e4ec2
TL
1689TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1690
e2cebd74
TL
1691TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1692 Missed a few lines, added it to make the runtest require no keyboard
1693 interaction.
1694
1695TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1696 contains upper case chars. Make router use caseful_local_part.
1697
2519e60d
TL
1698TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1699 support when GnuTLS has been built with p11-kit.
1700
e78e6ecf 1701
4263f395
PP
1702Exim version 4.80.1
1703-------------------
1704
1705PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1706 CVE-2012-5671
2c422e6f 1707 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1708
ea722490 1709
b1770b6e 1710Exim version 4.80
0599f9cf
PP
1711-----------------
1712
1713PP/01 Handle short writes when writing local log-files.
1714 In practice, only affects FreeBSD (8 onwards).
1715 Bugzilla 1053, with thanks to Dmitry Isaikin.
1716
23c7e742
NM
1717NM/01 Bugzilla 949 - Documentation tweak
1718
b322aac8
NM
1719NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1720 improved.
1721
4a891427
NM
1722NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1723
c1e794ba 1724PP/02 Implemented gsasl authenticator.
b322aac8 1725
97753960
PP
1726PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1727
1728PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1729 `pkg-config foo` for cflags/libs.
1730
df6303fa
PP
1731PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1732 with rest of GSASL and with heimdal_gssapi.
1733
7e6a8985
PP
1734PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1735 `pkg-config foo` for cflags/libs for the TLS implementation.
1736
f1e05cc7 1737PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1738 properties get this fed in as external SSF. A number of robustness
1739 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1740
4c287009
PP
1741PP/08 cyrus_sasl server now expands the server_realm option.
1742
b98bb9ac
PP
1743PP/09 Bugzilla 1214 - Log authentication information in reject log.
1744 Patch by Jeremy Harris.
1745
4a6a987a
PP
1746PP/10 Added dbmjz lookup type.
1747
c45dd180 1748PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1749
7db8d074
PP
1750PP/12 MAIL args handles TAB as well as SP, for better interop with
1751 non-compliant senders.
1752 Analysis and variant patch by Todd Lyons.
1753
eae0036b 1754NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1755 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1756 Patch from Dirk Mueller <dmueller@suse.com>
1757
dec5017e
PP
1758PP/13 tls_peerdn now print-escaped for spool files.
1759 Observed some $tls_peerdn in wild which contained \n, which resulted
1760 in spool file corruption.
1761
c80c5570
PP
1762PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1763 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1764 or write after TLS renegotiation, which otherwise led to messages
1765 "Got SSL error 2".
1766
076b11e2
PP
1767TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1768 as a tracking header (ie: a signed header comes before the signature).
1769 Patch from Wolfgang Breyha.
1770
5407bfff
JH
1771JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1772 comma-sep list; embedded commas doubled.
1773
9e45c72b
PP
1774JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1775
e74376d8
PP
1776PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1777 diagnostics.
1778 Report and patch from Dmitry Banschikov.
1779
4c04137d 1780PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1781 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1782 failures. We appear to now support TLS1.1+ with Exim.
1783
7be682ca
PP
1784PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1785 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1786 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1787 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1788
ef840681
PP
1789PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1790 NULL dereference. Report and patch from Alun Jones.
1791
5bfb4cdf
PP
1792PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1793 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1794 Not seeing resolver debug output on NetBSD, but suspect this is a
1795 resolver implementation change.
1796
c6e95d22
PP
1797PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1798 Left warnings. Added "eximon gdb" invocation mode.
1799
9cbad13b
PP
1800PP/21 Defaulting "accept_8bitmime" to true, not false.
1801
9ee44efb
PP
1802PP/22 Added -bw for inetd wait mode support.
1803
6a6084f8
PP
1804PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1805 locate the relevant includes and libraries. Made this the default.
1806
12dd53c7
PP
1807PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1808 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1809
9e45c72b 1810JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1811 This may cause build issues on older platforms.
1812
17c76198
PP
1813PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1814 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1815 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1816 Added SNI support via GnuTLS too.
af3498d6 1817 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1818
53947857 1819PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1820
eae0036b 1821PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1822 Applied second patch from Janne, implementing suggestion to default
1823 multiple-strings-in-record handling to match SPF spec.
eae0036b 1824
9e45c72b 1825JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1826
7390e768
PP
1827PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1828 read-only, out of scope).
1829 Patch from Wolfgang Breyha, report from Stuart Northfield.
1830
08488c86
PP
1831PP/29 Fix three issues highlighted by clang analyser static analysis.
1832 Only crash-plausible issue would require the Cambridge-specific
1833 iplookup router and a misconfiguration.
1834 Report from Marcin Mirosław.
1835
6475bd82
PP
1836PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1837
81f91683
PP
1838PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1839 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1840 As part of this, removing so much warning spew let me fix some minor
1841 real issues in debug logging.
1842
5779e6aa
PP
1843PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1844 assignment on my part. Fixed.
1845
3375e053
PP
1846PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1847 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1848 Janne Snabb (who went above and beyond: thank you).
1849
1850PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1851 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1852 relatively easy to get wrong. Should also expose TLS library linkage
1853 problems.
3375e053 1854
9d26b8c0
PP
1855PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1856 64-bit ${eval} (JH/03).
1857
57eb9e91 1858PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1859 GNU libc to support some of the 64-bit stuff, should not lead to
1860 conflicts. Defined before os.h is pulled in, so if a given platform
1861 needs to override this, it can.
1862
16880d1a
PP
1863PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1864 protection layer was required, which is not implemented.
1865 Bugzilla 1254, patch from Wolfgang Breyha.
1866
a799883d
PP
1867PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1868 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1869 tls_dhparam take prime identifiers. Also unbreak combination of
1870 OpenSSL+DH_params+TLSSNI.
1871
3ecab157 1872PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1873
0599f9cf 1874
867fcbf5
PP
1875Exim version 4.77
1876-----------------
1877
1878PP/01 Solaris build fix for Oracle's LDAP libraries.
1879 Bugzilla 1109, patch from Stephen Usher.
1880
f1a29782
TF
1881TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1882
ab42bd23
TK
1883TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1884 whitespace trailer
867fcbf5 1885
0ca0cf52
TF
1886TF/02 Fix a couple more cases where we did not log the error message
1887 when unlink() failed. See also change 4.74-TF/03.
1888
921b12ca
TF
1889TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1890 lock up or crash if it happened to be inside a call to libc when it
1891 got a SIGUSR1 from exiwhat.
1892
1893 The SIGUSR1 handler appends the current process status to the process
1894 log which is later printed by exiwhat. It used to use the general
1895 purpose logging code to do this, but several functions it calls are
1896 not safe for signals.
1897
1898 The new output code in the SIGUSR1 handler is specific to the process
1899 log, and simple enough that it's easy to inspect for signal safety.
1900 Removing some special cases also simplifies the general logging code.
1901 Removing the spurious timestamps from the process log simplifies
1902 exiwhat.
1903
c99ce5c9
TF
1904TF/04 Improved ratelimit ACL condition.
1905
1906 The /noupdate option has been deprecated in favour of /readonly which
1907 has clearer semantics. The /leaky, /strict, and /readonly update modes
1908 are mutually exclusive. The update mode is no longer included in the
1909 database key; it just determines when the database is updated. (This
4c04137d 1910 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1911
1912 Exim now checks that the per_* options are used with an update mode that
1913 makes sense for the current ACL. For example, when Exim is processing a
1914 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1915 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1916 must specify per_mail/readonly. If you omit the update mode it defaults to
1917 /leaky where that makes sense (as before) or /readonly where required.
1918
1919 The /noupdate option is now undocumented but still supported for
1920 backwards compatibility. It is equivalent to /readonly except that in
1921 ACLs where /readonly is required you may specify /leaky/noupdate or
1922 /strict/noupdate which are treated the same as /readonly.
1923
1924 A useful new feature is the /count= option. This is a generalization
1925 of the per_byte option, so that you can measure the throughput of other
1926 aggregate values. For example, the per_byte option is now equivalent
1927 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1928
1929 The per_rcpt option has been generalized using the /count= mechanism
1930 (though it's more complicated than the per_byte equivalence). When it is
1931 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1932 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1933 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1934 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1935 Note that using per_rcpt with a non-readonly update mode in more than
1936 one ACL will cause the recipients to be double-counted. (The per_mail
1937 and per_byte options don't have this problem.)
1938
1939 The handling of very low rates has changed slightly. If the computed rate
1940 is less than the event's count (usually one) then this event is the first
1941 after a long gap. In this case the rate is set to the same as this event's
1942 count, so that the first message of a spam run is counted properly.
1943
1944 The major new feature is a mechanism for counting the rate of unique
1945 events. The new per_addr option counts the number of different
1946 recipients that someone has sent messages to in the last time period. It
1947 behaves like per_rcpt if all the recipient addresses are different, but
1948 duplicate recipient addresses do not increase the measured rate. Like
1949 the /count= option this is a general mechanism, so the per_addr option
1950 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1951 example, measure the rate that a client uses different sender addresses
1952 with the options per_mail/unique=$sender_address. There are further
1953 details in the main documentation.
1954
3634fc25
TF
1955TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1956
792e8a19
TF
1957TF/06 Removed a few PCRE remnants.
1958
5901f0ab
TF
1959TF/07 Automatically extract Exim's version number from tags in the git
1960 repository when doing development or release builds.
1961
7f2a2a43
PP
1962PP/02 Raise smtp_cmd_buffer_size to 16kB.
1963 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1964
061b7ebd
PP
1965PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1966 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1967 Bugzilla 97.
1968
e12f8c32
PP
1969PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1970
9e949f00 1971PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1972 Bugzilla 1078. Patch from John Horne.
1973
1974PP/06 Stop make process more reliably on build failure.
1975 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1976
555ae6af 1977PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1978 Bugzilla 1089. Patch from Heiko Schlittermann.
1979
1980PP/08 Handle ${run} returning more data than OS pipe buffer size.
1981 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1982
6f7fe114
PP
1983PP/09 Handle IPv6 addresses with SPF.
1984 Bugzilla 860. Patch from Wolfgang Breyha.
1985
c566dd90
PP
1986PP/10 GnuTLS: support TLS 1.2 & 1.1.
1987 Bugzilla 1156.
89f897c3
PP
1988 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1989 Bugzilla 1095.
c566dd90 1990
d6cc7c78 1991PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1992 New compile-time build option, EXPAND_LISTMATCH_RHS.
1993 New expansion conditions, "inlist", "inlisti".
1994
0d0e4455
PP
1995PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1996
3399bb60 1997PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1998
1999PP/14 fix log_write() format string regression from TF/03.
2000 Bugzilla 1152. Patch from Dmitry Isaikin.
2001
0ca0cf52 2002
10906672
PP
2003Exim version 4.76
2004-----------------
2005
2006PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2007
754a0503
PP
2008PP/02 Harmonised TLS library version reporting; only show if debugging.
2009 Layout now matches that introduced for other libraries in 4.74 PP/03.
2010
c0c7b2da
PP
2011PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2012
e97d1f08
PP
2013PP/04 New "dns_use_edns0" global option.
2014
084c1d8c
PP
2015PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2016 Bugzilla 1098.
2017
4e7ee012
PP
2018PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2019 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2020
c8d52a00
PP
2021TK/01 Updated PolarSSL code to 0.14.2.
2022 Bugzilla 1097. Patch from Andreas Metzler.
2023
54e7ce4a
PP
2024PP/07 Catch divide-by-zero in ${eval:...}.
2025 Fixes bugzilla 1102.
2026
5ee6f336
PP
2027PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2028 Bugzilla 1104.
2029
c8d52a00 2030TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2031 format-string attack -- SECURITY: remote arbitrary code execution.
2032
2033TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2034 time unintentionally subject to list matching rules, letting the header
2035 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2036 arbitrary string expansion). This allowed for information disclosure.
2037
2038PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2039 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2040
10906672 2041
aa097c4c
NM
2042Exim version 4.75
2043-----------------
2044
4c04137d 2045NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2046 Bugzilla 1073
2047
7f3d9eff
TF
2048TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2049 This fixes portability to compilers other than gcc, notably
2050 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2051
159f52d2
TF
2052TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2053 makefiles for portability to HP-UX and POSIX correctness.
2054
0cc9542a
PP
2055PP/01 Permit LOOKUP_foo enabling on the make command-line.
2056 Also via indented variable definition in the Makefile.
2057 (Debugging by Oliver Heesakkers).
2058
f7274286
PP
2059PP/02 Restore caching of spamd results with expanded spamd_address.
2060 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2061
7b797365
PP
2062PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2063 Improves build reliability. Fix from: Frank Elsner
2064
caacae52
NM
2065NM/02 Fix wide character breakage in the rfc2047 coding
2066 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2067
09dcaba9
NM
2068NM/03 Allow underscore in dnslist lookups
2069 Fixes bug 1026. Patch from Graeme Fowler
2070
bc19a55b
PP
2071PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2072 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2073
bd4c9759
NM
2074NM/04 Fixed exiqgrep to cope with mailq missing size issue
2075 Fixes bug 943.
2076
b72aab72
PP
2077PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2078 is logged, to avoid truncation. Patch from John Horne.
2079
2fe76745
PP
2080PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2081 Patch from Jakob Hirsch.
2082
76aa570c
PP
2083PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2084 SQL string expansion failure details.
2085 Patch from Andrey Oktyabrski.
2086
f1e5fef5
PP
2087PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2088 Patch from Simon Arlott.
2089
4d805ee9
PP
2090PP/09 New lookups functionality failed to compile on old gcc which rejects
2091 extern declarations in function scope.
2092 Patch from Oliver Fleischmann
2093
cd59ab18
PP
2094PP/10 Use sig_atomic_t for flags set from signal handlers.
2095 Check getgroups() return and improve debugging.
2096 Fixed developed for diagnosis in bug 927 (which turned out to be
2097 a kernel bug).
2098
332f5cf3
PP
2099PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2100 Patch from Mark Zealey.
2101
29cfeb94
PP
2102PP/12 Bugzilla 1056: Improved spamd server selection.
2103 Patch from Mark Zealey.
2104
660242ad
PP
2105PP/13 Bugzilla 1086: Deal with maildir quota file races.
2106 Based on patch from Heiko Schlittermann.
2107
bc4bc4c5
PP
2108PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2109 Patch from Uwe Doering, sign-off by Michael Haardt.
2110
2e64baa9
NM
2111NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2112 variable declaration deep within a block. Bug and patch from
2113 Dennis Davis.
2114
4c04137d 2115PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2116
6bac1a9a
PP
2117PP/16 Make DISABLE_DKIM build knob functional.
2118
552193f0
NM
2119NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2120 Patch by Simon Arlott
baeee2c1 2121
1b587e48
TF
2122TF/03 Fix valgrind.h portability to C89 compilers that do not support
2123 variable argument macros. Our copy now differs from upstream.
2124
aa097c4c 2125
8c07b69f
TF
2126Exim version 4.74
2127-----------------
2128
2129TF/01 Failure to get a lock on a hints database can have serious
2130 consequences so log it to the panic log.
2131
c0ea85ab
TF
2132TF/02 Log LMTP confirmation messages in the same way as SMTP,
2133 controlled using the smtp_confirmation log selector.
2134
0761d44e
TF
2135TF/03 Include the error message when we fail to unlink a spool file.
2136
0a349494
PP
2137DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2138 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2139 for maintaining out-of-tree patches for some time.
2140
2141PP/01 Bugzilla 139: Documentation and portability issues.
2142 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2143 Handle per-OS dynamic-module compilation flags.
2144
fea24b2e
PP
2145PP/02 Let /dev/null have normal permissions.
2146 The 4.73 fixes were a little too stringent and complained about the
2147 permissions on /dev/null. Exempt it from some checks.
2148 Reported by Andreas M. Kirchwitz.
2149
6545de78
PP
2150PP/03 Report version information for many libraries, including
2151 Exim version information for dynamically loaded libraries. Created
2152 version.h, now support a version extension string for distributors
2153 who patch heavily. Dynamic module ABI change.
2154
1670ef10
PP
2155PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2156 privilege escalation vulnerability whereby the Exim run-time user
2157 can cause root to append content of the attacker's choosing to
2158 arbitrary files.
2159
c0886197
PP
2160PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2161 (Wolfgang Breyha)
2162
b7487bce
PP
2163PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2164 If dropping privileges for untrusted macros, we disabled normal logging
2165 on the basis that it would fail; for the Exim run-time user, this is not
2166 the case, and it resulted in successful deliveries going unlogged.
2167 Fixed. Reported by Andreas Metzler.
2168
8c07b69f 2169
97fd1e48 2170Exim version 4.73
ed7f7860 2171-----------------
97fd1e48
PP
2172
2173PP/01 Date: & Message-Id: revert to normally being appended to a message,
2174 only prepend for the Resent-* case. Fixes regression introduced in
2175 Exim 4.70 by NM/22 for Bugzilla 607.
2176
6901c596
PP
2177PP/02 Include check_rfc2047_length in configure.default because we're seeing
2178 increasing numbers of administrators be bitten by this.
2179
a8c8d6b5
JJ
2180JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2181
77bb000f
PP
2182PP/03 Bugzilla 994: added openssl_options main configuration option.
2183
a29e5231
PP
2184PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2185
ec5a0394 2186PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2187
55c75993
PP
2188PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2189
453a6645 2190PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2191 without a peer certificate, leading to a segfault because of an
2192 assumption that peers always have certificates. Be a little more
453a6645
PP
2193 paranoid. Problem reported by Martin Tscholak.
2194
8544e77a
PP
2195PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2196 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2197 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2198 CL also introduces -bmalware, various -d+acl logging additions and
2199 more caution in buffer sizes.
8544e77a 2200
83e029d5
PP
2201PP/09 Implemented reverse_ip expansion operator.
2202
ed7f7860
PP
2203PP/10 Bugzilla 937: provide a "debug" ACL control.
2204
7d9f747b
PP
2205PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2206
4b2241d2
PP
2207PP/12 Bugzilla 973: Implement --version.
2208
10385c15
PP
2209PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2210
dbc4b90d
PP
2211PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2212
532be449
PP
2213PP/15 Bugzilla 816: support multiple condition rules on Routers.
2214
6a8de854 2215PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2216 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2217 ignore trailing whitespace.
6a8de854 2218
5dc43717
JJ
2219JJ/02 prevent non-panic DKIM error from being sent to paniclog
2220
2221JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2222 "exim" to be used
55c75993 2223
3346ab01
PP
2224PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2225 Notification from Dr Andrew Aitchison.
2226
491fab4c
PP
2227PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2228 ExtendedDetectionInfo response format.
2229 Notification from John Horne.
2230
13eb9497
PP
2231PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2232 compatible.
2233
2234PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2235 XSL and documented dependency on system catalogs, with examples of how
2236 it normally works.
2237
7f36d675
DW
2238DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2239 access.
2240
c1d94452
DW
2241DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2242 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2243 configuration file which is writeable by the Exim user or group.
2244
e2f5dc15
DW
2245DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2246 of configuration files to cover files specified with the -C option if
2247 they are going to be used with root privileges, not just the default
2248 configuration file.
2249
cd25e41d
DW
2250DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2251 option (effectively making it always true).
2252
261dc43e
DW
2253DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2254 files to be used while preserving root privileges.
2255
fa32850b
DW
2256DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2257 that rogue child processes cannot use them.
2258
79d4bc3d
PP
2259PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2260 run-time user, instead of root.
2261
43236f35 2262PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2263 Exim run-time user without dropping privileges.
2264
fb08281f
DW
2265DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2266 result string, instead of calling string_vformat() twice with the same
2267 arguments.
3346ab01 2268
74935b98
DW
2269DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2270 for other users. Others should always drop root privileges if they use
2271 -C on the command line, even for a whitelisted configure file.
2272
90b6341f
DW
2273DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2274
57730b52
ML
2275NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2276
66581d1e 2277
465e92cf
JJ
2278Exim version 4.72
2279-----------------
2280
453a6645
PP
2281JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2282 $data_path, and $header_path variables; fixed documentation bugs and
2283 typos
465e92cf 2284
453a6645
PP
2285JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2286 exipick to access non-standard spools, including the "frozen" queue
2287 (Finput)
edae0343 2288
9bd3e22c
NM
2289NM/01 Bugzilla 965: Support mysql stored procedures.
2290 Patch from Alain Williams
2291
bb576ff7
NM
2292NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2293
5a1a5845
NM
2294NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2295 Patch from Andreas Metzler
2296
981a9fad
NM
2297NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2298 Patch from Kirill Miazine
2299
7fc497ee
NM
2300NM/05 Bugzilla 671: Added umask to procmail example.
2301
1a41defa
JJ
2302JJ/03 installed exipick 20100323.0, fixing doc bug
2303
a466095c 2304NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2305 directory. Notification and patch from Dan Rosenberg.
a466095c 2306
94a6bd0b
NM
2307TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2308
2309TK/02 Improve log output when DKIM signing operation fails.
2310
2311MH/01 Treat the transport option dkim_domain as a colon separated
2312 list, not as a single string, and sign the message with each element,
2313 omitting multiple occurences of the same signer.
2314
c1b141a8
NM
2315NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2316 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2317
b26eacf1 2318NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2319 Patch by Simon Arlott
2320
179c5980 2321PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2322 MBX locking. Notification from Dan Rosenberg.
179c5980 2323
9bd3e22c 2324
7c6d71af
NM
2325Exim version 4.71
2326-----------------
2327
7d9f747b 2328TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2329
f013fb92
NM
2330NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2331
0eb8eedd
NM
2332NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2333
663ee6d9
NM
2334NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2335
177ebd9b
NM
2336NM/04 Bugzilla 915: Flag broken perl installation during build.
2337
7c6d71af 2338
210f147e
NM
2339Exim version 4.70
2340-----------------
2341
cdd3bb85 2342TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2343 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2344
2345TK/02 Write list of recipients to X-Envelope-Sender header when building
2346 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2347 Hirsch).
cdd3bb85
TK
2348
2349TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2350 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2351 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2352
2353TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2354 by Mark Daniel Reidel <mr@df.eu>.
2355
210f147e
NM
2356NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2357 When building exim an external PCRE library is now needed -
2358 PCRE is a system library on the majority of modern systems.
2359 See entry on PCRE_LIBS in EDITME file.
2360
deafd5b3
NM
2361NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2362 conversation. Added nologin parameter to request.
7d9f747b 2363 Patch contributed by Kirill Miazine.
deafd5b3 2364
089793a4
TF
2365TF/01 Do not log submission mode rewrites if they do not change the address.
2366
5f16ca82
TF
2367TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2368
dae9d94e 2369NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2370 log files in place. Contributed by Roberto Lima.
dae9d94e 2371
7d9f747b 2372NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2373
06864c44
TF
2374TF/03 Bugzilla 615: When checking the local_parts router precondition
2375 after a local_part_suffix or local_part_prefix option, Exim now
2376 does not use the address's named list lookup cache, since this
2377 contains cached lookups for the whole local part.
2378
65a7d8c3 2379NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2380 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2381
23510047 2382TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2383
7d9f747b 2384NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2385
7d8eec3a 2386NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2387 Patch provided by Jan Srzednicki.
6c588e74 2388
89dec7b6
TF
2389TF/05 Leading white space used to be stripped from $spam_report which
2390 wrecked the formatting. Now it is preserved.
5f28a6e8 2391
a99de90c
TF
2392TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2393 that they are available at delivery time.
2394
e2803e40
TF
2395TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2396
7199e1ee
TF
2397TF/08 TLS error reporting now respects the incoming_interface and
2398 incoming_port log selectors.
2399
e276e04b
TF
2400TF/09 Produce a more useful error message if an SMTP transport's hosts
2401 setting expands to an empty string.
2402
ce552449 2403NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2404 Patch provided by Phil Pennock.
ce552449 2405
e765a0f1 2406NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2407 Patch provided by Richard Godbee.
e765a0f1 2408
4f054c63 2409NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2410 acl_smtp_notquit, added index entry.
4f054c63 2411
7d9f747b
PP
2412NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2413 Patch provided by Eugene Bujak.
24c929a2 2414
7d9f747b
PP
2415NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2416 accept(). Patch provided by Maxim Dounin.
cf73943b 2417
b52bc06e 2418NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2419 Patch provided by Phil Pennock.
b52bc06e 2420
447de4b0
NM
2421NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2422
4c69d561 2423NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2424 Patch provided by Brad "anomie" Jorsch.
4c69d561 2425
d5c39246 2426NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2427 Patch provided by Dean Brooks.
9b989985 2428
0b23848a
TK
2429TK/05 Add native DKIM support (does not depend on external libraries).
2430
8f3414a1 2431NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2432 Patch provided by Graeme Fowler.
e2aacdfd 2433
fb6f955d
NM
2434NM/16 Bugzilla 851: Documentation example syntax fix.
2435
2436NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2437
7d9f747b
PP
2438NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2439 lsearch.
dbb0bf41 2440
7d9f747b
PP
2441NM/19 Bugzilla 745: TLS version reporting.
2442 Patch provided by Phil Pennock.
f3766eb5 2443
7d9f747b
PP
2444NM/20 Bugzilla 167: bool: condition support.
2445 Patch provided by Phil Pennock.
36f12725 2446
7d9f747b
PP
2447NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2448 clients. Patch provided by Phil Pennock.
e6060e2c 2449
7d9f747b
PP
2450NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2451 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2452
7d9f747b
PP
2453NM/23 Bugzilla 687: Fix misparses in eximstats.
2454 Patch provided by Heiko Schlittermann.
d5c13d66 2455
7d9f747b
PP
2456NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2457 Patch provided by Heiko Schlittermann.
b2335c0b 2458
7d9f747b 2459NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2460 plus update to original patch.
f4cd9433 2461
7d9f747b 2462NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2463
7d9f747b
PP
2464NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2465 Patch provided by David Brownlee.
8dc71ab3 2466
7d9f747b 2467NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2468
7d9f747b 2469NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2470
7d9f747b 2471NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2472
7d9f747b 2473NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2474
17792b53 2475NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2476 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2477
7d9f747b
PP
2478NM/33 Bugzilla 898: Transport filter timeout fix.
2479 Patch by Todd Rinaldo.
52383f8f 2480
91576cec 2481NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2482 Patch by Serge Demonchaux.
5ca6d115 2483
7d9f747b
PP
2484NM/35 Bugzilla 39: Base64 decode bug fixes.
2485 Patch by Jakob Hirsch.
baee9eee 2486
7d9f747b 2487NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2488
7d9f747b 2489NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2490
7d9f747b 2491NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2492
7d9f747b 2493NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2494
deafd5b3 2495
47db1125
NM
2496Exim version 4.69
2497-----------------
2498
4b3504d0
TK
2499TK/01 Add preliminary DKIM support. Currently requires a forked version of
2500 ALT-N's libdkim that I have put here:
2501 http://duncanthrax.net/exim-experimental/
2502
2503 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2504 were called 'true' and it seems that C99 defines that as a reserved
2505 keyword to be used with 'bool' variable types. That means you could
2506 not include C99-style headers which use bools without triggering
2507 build errors in sieve.c.
2508
81ea09ca
NM
2509NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2510 as mailq or other aliases. Changed the --help handling significantly
2511 to do whats expected. exim_usage() emits usage/help information.
2512
f13cddcb
SC
2513SC/01 Added the -bylocaldomain option to eximstats.
2514
7d9f747b 2515NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2516
7d9f747b 2517NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2518
7d9f747b 2519NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2520
2521
eb4c0de6
PH
2522Exim version 4.68
2523-----------------
2524
2525PH/01 Another patch from the Sieve maintainer.
2526
6a3bceb1
PH
2527PH/02 When an IPv6 address is converted to a string for single-key lookup
2528 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2529 dots are used instead of colons so that keys in lsearch files need not
2530 contain colons. This was done some time before quoting was made available
2531 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2532 (notated using the quote facility) so as to distinguish them from IPv4
2533 keys. This meant that lookups for IP addresses in host lists did not work
2534 for iplsearch lookups.
2535
2536 This has been fixed by arranging for IPv6 addresses to be expressed with
2537 colons if the lookup type is iplsearch. This is not incompatible, because
2538 previously such lookups could never work.
2539
4c04137d 2540 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2541 ordinary lsearch keys. However, making the change in all cases is
2542 incompatible and would probably break a number of configurations.
2543
2e30fa9d
TK
2544TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2545 version.
2546
0806a9c5
MH
2547MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2548 conversion specification without a maximum field width, thereby enabling
2549 a rogue spamd server to cause a buffer overflow. While nobody in their
2550 right mind would setup Exim to query an untrusted spamd server, an
2551 attacker that gains access to a server running spamd could potentially
2552 exploit this vulnerability to run arbitrary code as the Exim user.
2553
ae276964
TK
2554TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2555 $primary_hostname instead of what libspf2 thinks the hosts name is.
2556
0f2cbd1b
MH
2557MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2558 a directory entry by the name of the lookup key. Previously, if a
2559 symlink pointed to a non-existing file or a file in a directory that
2560 Exim lacked permissions to read, a lookup for a key matching that
2561 symlink would fail. Now it is enough that a matching directory entry
2562 exists, symlink or not. (Bugzilla 503.)
2563
2b85bce7
PH
2564PH/03 The body_linecount and body_zerocount variables are now exported in the
2565 local_scan API.
2566
93655c46
PH
2567PH/04 Added the $dnslist_matched variable.
2568
6c512171
PH
2569PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2570 This means they are set thereafter only if the connection becomes
2571 encrypted.
2572
2573PH/06 Added the client_condition to authenticators so that some can be skipped
2574 by clients under certain conditions.
2575
aa6dc513
PH
2576PH/07 The error message for a badly-placed control=no_multiline_responses left
2577 "_responses" off the end of the name.
2578
a96603a0
PH
2579PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2580
8f240103
PH
2581PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2582 (without spaces) instead of just copying the configuration text.
2583
2584PH/10 Added the /noupdate option to the ratelimit ACL condition.
2585
d677b2f2
PH
2586PH/11 Added $max_received_linelength.
2587
d52120f2
PH
2588PH/12 Added +ignore_defer and +include_defer to host lists.
2589
64f2600a
PH
2590PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2591 way in which PCRE > 7.0 is built.
2592
8669f003
PH
2593PH/14 Implemented queue_only_load_latch.
2594
a4dc33a8
PH
2595PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2596 MAIL command. The effect was to mangle the value on 64-bit systems.
2597
d6a60c0f
PH
2598PH/16 Another patch from the Sieve maintainer.
2599
8f128379
PH
2600PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2601
8932dffe
PH
2602PH/18 If a system quota error occurred while trying to create the file for
2603 a maildir delivery, the message "Mailbox is full" was not appended to the
2604 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2605 only to a quota excession during the actual writing of the file.
d6a60c0f 2606
ddea74fa 2607PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2608 characters?) which causes problems in log lines. The DN values are now
2609 passed through string_printing() before being added to log lines.
2610
ddea74fa 2611PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2612 and InterBase are left for another time.)
2613
ddea74fa
PH
2614PH/21 Added message_body_newlines option.
2615
ce9f225c
PH
2616PH/22 Guard against possible overflow in moan_check_errorcopy().
2617
19897d52
PH
2618PH/23 POSIX allows open() to be a macro; guard against that.
2619
bc64a74d
PH
2620PH/24 If the recipient of an error message contained an @ in the local part
2621 (suitably quoted, of course), incorrect values were put in $domain and
2622 $local_part during the evaluation of errors_copy.
2623
eb4c0de6 2624
b4ed4da0
PH
2625Exim version 4.67
2626-----------------
2627
22ad45c9
MH
2628MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2629 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2630 Jan Srzednicki.
2631
b4ed4da0
PH
2632PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2633 issue a MAIL command.
2634
431b7361
PH
2635PH/02 In an ACL statement such as
2636
2637 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2638
2639 if a client was not listed at all, or was listed with a value other than
2640 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2641 the condition was not true (as it should be), so access was not denied.
2642 The bug was that the ! inversion was incorrectly passed on to the second
2643 item. This has been fixed.
2644
2645PH/03 Added additional dnslists conditions == and =& which are different from
2646 = and & when the dns lookup returns more than one IP address.
2647
83da1223
PH
2648PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2649 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2650
54fc8428
PH
2651PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2652 FSYNC, which compiles an option called disable_fsync that allows for
2653 bypassing fsync(). The documentation is heavily laced with warnings.
2654
34c5e8dd
SC
2655SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2656
bbe15da8
PH
2657PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2658 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2659 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2660 including adding "make clean"; (3) Added -fPIC when compiling the test
2661 dynamically loaded module, to get rid of a warning.
2662
0e8a9471
MH
2663MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2664 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2665 = 0s. The bug is otherwise harmless.
2666
f0872424
PH
2667PH/07 There was a bug in the dovecot authenticator such that the value of
2668 $auth1 could be overwritten, and so not correctly preserved, after a
2669 successful authentication. This usually meant that the value preserved by
2670 the server_setid option was incorrect.
2671
b01dd148
PH
2672PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2673
6bf342e1
PH
2674PH/09 Installed PCRE release 7.0.
2675
273f34d0
PH
2676PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2677 run for batched SMTP input. It is now run at the start of every message
2678 in the batch. While fixing this I discovered that the process information
2679 (output by running exiwhat) was not always getting set for -bs and -bS
2680 input. This is fixed, and it now also says "batched" for BSMTP.
2681
cf8b11a5
PH
2682PH/11 Added control=no_pipelining.
2683
41c7c167
PH
2684PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2685 patch, slightly modified), and move the expansion of helo_data till after
2686 the connection is made in the smtp transport (so it can use these
2687 values).
2688
9c57cbc0
PH
2689PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2690
f3f065bb
PH
2691PH/14 Added log_selector = +pid.
2692
047bdd8c
PH
2693PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2694
0ce9abe6
PH
2695PH/16 Add ${if forany and ${if forall.
2696
0e22dfd1
PH
2697PH/17 Added dsn_from option to vary the From: line in DSNs.
2698
4c590bd1
PH
2699PH/18 Flush SMTP output before performing a callout, unless control =
2700 no_callout_flush is set.
2701
09945f1e
PH
2702PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2703 was true (the default) a successful delivery failed to delete the retry
2704 item, thus causing premature timeout of the address. The bug is now
2705 fixed.
2706
c51b8e75
PH
2707PH/20 Added hosts_avoid_pipelining to the smtp transport.
2708
e28326d8 2709PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2710 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2711 other ACL rejections are.
2712
75b1493f
PH
2713PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2714 with slight modification.
2715
7c5214ec
PH
2716PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2717 draft, changing the syntax and factoring some duplicate code".
2718
4311097e
PH
2719PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2720 for deliveries of the second and subsequent messages over the same SMTP
2721 connection.
2722
29f89cad
PH
2723PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2724 ${reduce, with only minor "tidies".
2725
5e687460
SC
2726SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2727
c3611384
PH
2728PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2729 expansion side effects.
2730
5a11a7b4
PH
2731PH/27 When a message times out after an over-quota error from an Exim-imposed
2732 quota, the bounce message says "mailbox is full". This message was not
2733 being given when it was a system quota that was exceeded. It now should
2734 be the same.
2735
0e20aff9
MH
2736MH/03 Made $recipients available in local_scan(). local_scan() already has
2737 better access to the recipient list through recipients_list[], but
2738 $recipients can be useful in postmaster-provided expansion strings.
2739
ca86f471
PH
2740PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2741 in the case of a MAIL command with additional options following the
2742 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2743 were accidentally chopped off.
2744
a14e5636
PH
2745PH/29 SMTP synchronization checks are implemented when a command is read -
2746 there is a check that no more input is waiting when there shouldn't be
2747 any. However, for some commands, a delay in an ACL can mean that it is
2748 some time before the response is written. In this time, more input might
2749 arrive, invalidly. So now there are extra checks after an ACL has run for
2750 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2751 pipelining has not been advertised.
2752
ec95d1a6
PH
2753PH/30 MH's patch to allow iscntrl() characters to be list separators.
2754
42855d71
PH
2755PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2756 returned in the SMTP response when smtp_return_error_details was false.
2757 This has been fixed.
2758
57c2c631
PH
2759PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2760 instead of the C I/O that was originally supplied, because problems were
2761 reported on Solaris.
2762
58c01c94
PH
2763PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2764 Exim which did not show up earlier: it was assuming that a call to
2765 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2766 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2767 was a macro that became an assignment, so it seemed to work. This has
2768 changed to a proper function call with a void return, hence the compile
2769 error. Exim's code has been fixed.
2770
dee5a20a
PH
2771PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2772 cpus.
2773
d2ee6114
PH
2774PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2775
b2d5182b
PH
2776PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2777
79749a79
PH
2778PH/37 If a message is not accepted after it has had an id assigned (e.g.
2779 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2780 "Completed" line in the log. When some messages of this type were
2781 selected by exigrep, they were listed as "not completed". Others were
2782 picked up by some special patterns. I have improved the selection
2783 criteria to be more general.
79749a79 2784
c456d9bb
PH
2785PH/38 The host_find_failed option in the manualroute router can now be set
2786 to "ignore", to completely ignore a host whose IP address cannot be
2787 found. If all hosts are ignored, the behaviour is controlled by the new
2788 host_all_ignored option.
2789
cd9868ec
PH
2790PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2791 homing or because of multiple MX records with /mx) generated more than
2792 one IP address, and the following item turned out to be the local host,
2793 all the secondary addresses of the first item were incorrectly removed
2794 from the list, along with the local host and any following hosts (which
2795 is what is supposed to happen).
2796
ebeaf996
PH
2797PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2798 whoever called Exim into the -H file. In the case of the daemon it was
2799 behaving confusingly. When first started, it used values for whoever
2800 started the daemon, but after a SIGHUP it used the Exim user (because it
2801 calls itself on a restart). I have changed the code so that it now always
2802 uses the Exim user.
2803
2679d413
PH
2804PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2805 message are rejected with the same error (e.g. no authentication or bad
2806 sender address), and a DATA command is nevertheless sent (as can happen
2807 with PIPELINING or a stupid MUA), the error message that was given to the
2808 RCPT commands is included in the rejection of the DATA command. This is
2809 intended to be helpful for MUAs that show only the final error to their
2810 users.
2811
84024b72
PH
2812PH/42 Another patch from the Sieve maintainer.
2813
8005d38e
SC
2814SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2815 Eximstats - Fixed some broken HTML links and added missing column headers
2816 (Jez Hancock).
2817 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2818 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2819
3298c6c6
SC
2820SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2821
a43a27c5
PH
2822PH/43 Yet another patch from the Sieve maintainer.
2823
58eb016e 2824PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2825 the response to the final '.' that terminates a message, but only in the
2826 case where the client has not sent further data following the '.'
2827 (unfortunately, this is allowed). However, in many cases there won't be
2828 any further data because there won't be any more messages to send. A call
2829 to select() can be used: if it shows that the input is "ready", there is
2830 either input waiting, or the socket has been closed. An attempt to read
2831 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2832 would have sent an OK response which the client would never have see.
563b63fa
PH
2833 This could lead to message repetition. This fix should cure that, at
2834 least in a lot of common cases.
58eb016e 2835
b43a74ea
PH
2836PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2837 advertised in response to EHLO.
2838
b4ed4da0 2839
5dd1517f
PH
2840Exim version 4.66
2841-----------------
2842
2843PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2844 fixed by 4.65/MH/01 (is this a record?) are fixed:
2845
2846 (i) An empty string was always treated as zero by the numeric comparison
2847 operators. This behaviour has been restored.
2848
2849 (ii) It is documented that the numeric comparison operators always treat
2850 their arguments as decimal numbers. This was broken in that numbers
2851 starting with 0 were being interpreted as octal.
2852
2853 While fixing these problems I realized that there was another issue that
2854 hadn't been noticed. Values of message_size_limit (both the global option
2855 and the transport option) were treated as octal if they started with 0.
2856 The documentation was vague. These values are now always treated as
2857 decimal, and I will make that clear in the documentation.
2858
2859
93cfa765
TK
2860Exim version 4.65
2861-----------------
2862
2863TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2864 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2865 versions. (#438)
2866
d6066548
MH
2867MH/01 Don't check that the operands of numeric comparison operators are
2868 integers when their expansion is in "skipping" mode (fixes bug
2869 introduced by 4.64-PH/07).
2870
4362ff0d
PH
2871PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2872 child addresses, Exim now panics and dies. Previously, because the count
2873 is held in a short int, deliveries were likely to be lost. As such a
2874 large number of recipients for a single message is ridiculous
2875 (performance will be very, very poor), I have chosen to impose a limit
2876 rather than extend the field.
2877
93cfa765 2878
944e9e9c
TF
2879Exim version 4.64
2880-----------------
aa41d2de 2881
21d74bd9
TK
2882TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2883 leftover -K file (the existence of which was triggered by #402).
2884 While we were at it, introduced process PID as part of the -K
2885 filename. This should rule out race conditions when creating
2886 these files.
2887
2888TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2889 processing considerably. Previous code took too long for large mails,
2890 triggering a timeout which in turn triggers #401.
2891
2892TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2893 in the DK code in transports.c. sendfile() is not really portable,
2894 hence the _LINUX specificness.
944e9e9c
TF
2895
2896TF/01 In the add_headers option to the mail command in an Exim filter,
2897 there was a bug that Exim would claim a syntax error in any
2898 header after the first one which had an odd number of characters
2899 in the field name.
2900
2b1c6e3a
PH
2901PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2902 callout verification, Exim cached a "reject" for the entire domain. This
2903 is correct for most verifications, but it is not correct for a recipient
2904 verification with use_sender or use_postmaster set, because in that case
2905 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2906 case of MAIL FROM:<> rejection from other early rejections (e.g.
2907 rejection of HELO). When verifying a recipient using a non-null MAIL
2908 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2909 Whatever the result of the callout, the value of the domain cache is
2910 left unchanged (for any other kind of callout, getting as far as trying
2911 RCPT means that the domain itself is ok).
2912
1f872c80
PH
2913PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2914 gcc 4.1.1 threw up.
2915
2916PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2917 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2918 session, the daemon ignores ECONNECT errors and logs others; it now
2919 ignores EPIPE as well.
2920
d203e649
PH
2921PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2922 (quoted-printable decoding).
2923
cc2ed8f7 2924PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2925 later the small subsequent patch to fix an introduced bug.
f951fd57 2926
ddfcd446
PH
2927PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2928
d45b1de8
PH
2929PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2930
2931PH/08 An error is now given if message_size_limit is specified negative.
2932
38a0a95f 2933PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2934 to be given (somewhat) arbitrary names.
38a0a95f 2935
a2405d83
JJ
2936JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2937 in 4.64-PH/09.
2938
2939JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2940 miscellaneous code fixes
2941
6ea85e9a
PH
2942PH/10 Added the log_reject_target ACL modifier to specify where to log
2943 rejections.
2944
26da7e20
PH
2945PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2946 hostname. This is wrong, because it relates to the incoming message (and
2947 probably the interface on which it is arriving) and not to the outgoing
2948 callout (which could be using a different interface). This has been
2949 changed to use the value of the helo_data option from the smtp transport
2950 instead - this is what is used when a message is actually being sent. If
2951 there is no remote transport (possible with a router that sets up host
2952 addresses), $smtp_active_hostname is used.
6ea85e9a 2953
14aa5a05 2954PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2955 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2956 (a) The code assumed that strncpy() returns a negative number on buffer
2957 overflow, which isn't the case. Replaced with Exim's string_format()
2958 function.
2959 (b) There were several signed/unsigned issues. I just did the minimum
2960 hacking in of casts. There is scope for a larger refactoring.
2961 (c) The code used strcasecmp() which is not a standard C function.
2962 Replaced with Exim's strcmpic() function.
2963 (d) The code set only $1; it now sets $auth1 as well.
2964 (e) A simple test gave the error "authentication client didn't specify
2965 service in request". It would seem that Dovecot has changed its
2966 interface. Fortunately there's a specification; I followed it and
2967 changed what the client sends and it appears to be working now.
2968
ff75a1f7
PH
2969PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2970 decoding.
2971
e6f6568e
PH
2972PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2973 address A is aliased to B and C, where B exists and C does not. Without
2974 -v the output is "A verified" because verification stops after a
2975 successful redirection if more than one address is generated. However,
2976 with -v the child addresses are also verified. Exim was outputting "A
2977 failed to verify" and then showing the successful verification for C,
2978 with its parentage. It now outputs "B failed to verify", showing B's
2979 parentage before showing the successful verification of C.
2980
d6f6e0dc
PH
2981PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2982 look up a TXT record in a specific list after matching in a combined
2983 list.
2984
322050c2
PH
2985PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2986 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2987 they consult the DNS. I had assumed they would set it the way they
2988 wanted; and indeed my experiments on Linux seem to show that in some
2989 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2990 To be on the safe side, however, I have now made the interface to
2991 host_find_byname() similar to host_find_bydns(), with an argument
2992 containing the DNS resolver options. The host_find_byname() function now
2993 sets these options at its start, just as host_find_bydns() does. The smtp
2994 transport options dns_qualify_single and dns_search_parents are passed to
2995 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2996 of host_find_byname() use the default settings of RES_DEFNAMES
2997 (qualify_single) but not RES_DNSRCH (search_parents).
2998
08955dd3
PH
2999PH/17 Applied (a modified version of) Nico Erfurth's patch to make
3000 spool_read_header() do less string testing, by means of a preliminary
3001 switch on the second character of optional "-foo" lines. (This is
3002 overdue, caused by the large number of possibilities that now exist.
3003 Originally there were few.) While I was there, I also converted the
3004 str(n)cmp tests so they don't re-test the leading "-" and the first
3005 character, in the hope this might squeeze out yet more improvement.
3006
1eccaa59
PH
3007PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3008 flag allowing group syntax was set by the header_syntax check but not
3009 turned off, possible causing trouble later; (2) The flag was not being
3010 set at all for the header_verify test, causing "group"-style headers to
3011 be rejected. I have now set it in this case, and also caused header_
3012 verify to ignore an empty address taken from a group. While doing this, I
3013 came across some other cases where the code for allowing group syntax
3014 while scanning a header line wasn't quite right (mostly, not resetting
3015 the flag correctly in the right place). These bugs could have caused
3016 trouble for malformed header lines. I hope it is now all correct.
3017
602e59e5
PH
3018PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3019 with the "reply" argument non-NULL. The code, however (which originally
3020 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3021 but it didn't always do it. This confused somebody who was copying the
3022 code for some other use. I have removed all the tests.
3023
411ef850
PH
3024PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3025 feature that was used to support insecure browsers during the U.S. crypto
3026 embargo. It requires special client support, and Exim is probably the
3027 only MTA that supported it -- and would never use it because real RSA is
3028 always available. This code has been removed, because it had the bad
3029 effect of slowing Exim down by computing (never used) parameters for the
3030 RSA_EXPORT functionality.
3031
7befa435
PH
3032PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3033 authenticator to fail if there's a tab character in the incoming data
3034 (there should never be unless someone is messing about, as it's supposed
3035 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3036 if the connection is using TLS or if the remote IP is the same as the
3037 local IP, and the "valid-client-cert option" if a client certificate has
3038 been verified.
3039
48da4259 3040PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3041 authenticators. This can be used for authorization after authentication
3042 succeeds. (In the case of plaintext, it servers for both authentication
3043 and authorization.)
3044
48da4259
PH
3045PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3046 if any retry times were supplied.
3047
d1d5595c
PH
3048PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3049 connection, where there is no client IP address to check. In this
3050 situation, the verify now always succeeds.
3051
0ef732d9
PH
3052PH/25 Applied John Jetmore's -Mset patch.
3053
328895cc
PH
3054PH/26 Added -bem to be like -Mset, but loading a message from a file.
3055
fd700877
PH
3056PH/27 In a string expansion for a processed (not raw) header when multiple
3057 headers of the same name were present, leading whitespace was being
3058 removed from all of them, but trailing whitespace was being removed only
3059 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3060 before concatenation. Completely empty headers in a concatenation (as
3061 before) are ignored.
fd700877 3062
8dce1a6f
PH
3063PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3064 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3065
17af4a17
PH
3066PH/29 [Removed. This was a change that I later backed out, and forgot to
3067 correct the ChangeLog entry (that I had efficiently created) before
3068 committing the later change.]
f6c332bd
PH
3069
3070PH/30 Exim was sometimes attempting to deliver messages that had suffered
3071 address errors (4xx response to RCPT) over the same connection as other
3072 messages routed to the same hosts. Such deliveries are always "forced",
3073 so retry times are not inspected. This resulted in far too many retries
3074 for the affected addresses. The effect occurred only when there were more
3075 hosts than the hosts_max_try setting in the smtp transport when it had
3076 the 4xx errors. Those hosts that it had tried were not added to the list
3077 of hosts for which the message was waiting, so if all were tried, there
3078 was no problem. Two fixes have been applied:
3079
3080 (i) If there are any address or message errors in an SMTP delivery, none
3081 of the hosts (tried or untried) are now added to the list of hosts
3082 for which the message is waiting, so the message should not be a
3083 candidate for sending over the same connection that was used for a
3084 successful delivery of some other message. This seems entirely
3085 reasonable: after all the message is NOT "waiting for some host".
3086 This is so "obvious" that I'm not sure why it wasn't done
3087 previously. Hope I haven't missed anything, but it can't do any
3088 harm, as the worst effect is to miss an optimization.
3089
3090 (ii) If, despite (i), such a delivery is accidentally attempted, the
3091 routing retry time is respected, so at least it doesn't keep
3092 hammering the server.
3093
c1114884
PH
3094PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3095 in ${readsocket because some servers need this prod.
3096
7a0743eb
PH
3097PH/32 Added some extra debug output when updating a wait-xxx database.
3098
0d85fa3f
PH
3099PH/33 The hint "could be header name not terminated by colon", which has been
3100 given for certain expansion errors for a long time, was not being given
3101 for the ${if def:h_colon_omitted{... case.
3102
1bf43b78
PH
3103PH/34 The spec says: "With one important exception, whenever a domain list is
3104 being scanned, $domain contains the subject domain." There was at least
3105 one case where this was not true.
3106
520de300
PH
3107PH/35 The error "getsockname() failed: connection reset by peer" was being
3108 written to the panic log as well as the main log, but it isn't really
3109 panic-worthy as it just means the connection died rather early on. I have
3110 removed the panic log writing for the ECONNRESET error when getsockname()
3111 fails.
3112
48c7f9e2
PH
3113PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3114 runs only) independently of the message's sender address. This meant
3115 that, if the 4xx error was in fact related to the sender, a different
3116 message to the same recipient with a different sender could confuse
4c04137d 3117 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3118 server, but other circumstances could also provoke similar problems.
3119 I have changed the default so that the retry time for these errors is now
3120 based a combination of the sender and recipient addresses. This change
3121 can be overridden by setting address_retry_include_sender=false in the
3122 smtp transport.
3123
99ea1c86
PH
3124PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3125 remote server are returned as part of bounce messages. This was not
3126 happening for LMTP over a pipe (the lmtp transport), but now it is the
3127 same for both kinds of LMTP.
3128
a2042e78
PH
3129PH/38 Despite being documented as not happening, Exim was rewriting addresses
3130 in header lines that were in fact CNAMEs. This is no longer the case.
3131
4fbcfc2e
PH
3132PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3133 and queue runs started by the daemon processed all messages. This has
3134 been fixed so that -R and -S can now usefully be given with -q<time>.
3135
aa41d2de
PH
3136PH/40 Import PCRE release 6.7 (fixes some bugs).
3137
af561417
PH
3138PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3139
3cc66b45
PH
3140PH/42 Give an error if -q is specified more than once.
3141
194cc0e4
PH
3142PH/43 Renamed the variables $interface_address and $interface_port as
3143 $received_ip_address and $received_port, to make it clear that these
3144 values apply to message reception, and not to the outgoing interface when
3145 a message is delivered. (The old names remain recognized, of course.)
3146
a401ddaa
PH
3147PH/44 There was no timeout on the connect() call when using a Unix domain
3148 socket in the ${readsocket expansion. There now is.
3149
4e88a19f
PH
3150PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3151 be meaningful with "accept".
3152
d7d7b289
SC
3153SC/01 Eximstats V1.43
3154 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3155
3156SC/02 Eximstats V1.44
3157 Use a glob alias rather than an array ref in the generated
3158 parser. This improves both readability and performance.
3159
3160SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3161 Collect SpamAssassin and rejection statistics.
3162 Don't display local sender or destination tables unless
3163 there is data to show.
3164 Added average volumes into the top table text output.
3165
3166SC/04 Eximstats V1.46
3167 Collect data on the number of addresses (recipients)
3168 as well as the number of messages.
3169
3170SC/05 Eximstats V1.47
3171 Added 'Message too big' to the list of mail rejection
3172 reasons (thanks to Marco Gaiarin).
3173
3174SC/06 Eximstats V1.48
3175 Mainlog lines which have GMT offsets and are too short to
3176 have a flag are now skipped.
3177
3178SC/07 Eximstats V1.49 (Alain Williams)
3179 Added the -emptyok flag.
3180
3181SC/08 Eximstats V1.50
3182 Fixes for obtaining the IP address from reject messages.
3183
0ea2a468
JJ
3184JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3185 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3186 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3187
3188JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3189 match 4.64-PH/13
3190
3191JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3192 are found, allow negative numbers in numeric criteria)
3193
3194JJ/06 exipick.20061117.2, added new $message_body_missing variable
3195
3196JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3197 to match changes made in 4.64-PH/43
3198
8a10f5a4
PH
3199PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3200
30e18802
PH
3201PH/47 Put in an explicit test for a DNS lookup of an address record where the
3202 "domain" is actually an IP address, and force a failure. This locks out
3203 those revolvers/nameservers that support "A-for-A" lookups, in
3204 contravention of the specifications.
3205
55728a4f
PH
3206PH/48 When a host name was looked up from an IP address, and the subsequent
3207 forward lookup of the name timed out, the host name was left in
3208 $sender_host_name, contrary to the specification.
d7d7b289 3209
d7837193
PH
3210PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3211 restricted to single-key lookups, Exim was not diagnosing an error if
3212 * or *@ was used with a query-style lookup.
3213
87054a31
PH
3214PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3215
ea2c01d2
MH
3216MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3217 long ago, but noone interested enough thought of it. Let's just say that
3218 the "1.1" means that there are some new functions that weren't there at
3219 some point in the past.
3220
e4fa6968
PH
3221PH/51 Error processing for expansion failure of helo_data from an smtp
3222 transport during callout processing was broken.
3223
56f5d9bd
PH
3224PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3225 tested/used via the -bh/-bhc/-bs options.
3226
922e1c28
PH
3227PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3228 bug, fixed in subsequent PCRE releases).
3229
21eb6e72
PH
3230PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3231 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3232
a0540757
PH
3233PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3234
944e9e9c 3235
478be7b0
SC
3236Exim version 4.63
3237-----------------
3238
3239SC/01 Use a glob alias rather than an array ref in eximstats generated
3240 parser. This improves both readability and performance.
3241
3242SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3243 Don't display local sender or destination tables in eximstats unless
3244 there is data to show.
3245 Added average volumes into the eximstats top table text output.
3246
3247SC/03 Collect data on the number of addresses (recipients) as well
3248 as the number of messages in eximstats.
3249
2b965a65
TF
3250TF/01 Correct an error in the documentation for the redirect router. Exim
3251 does (usually) call initgroups() when daemonizing.
478be7b0 3252
45b91596
PH
3253TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3254 with consistent privilege compared to when running as a daemon.