TLS: refactor client-start interface
[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
40ed89b3
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8Exim version 4.93
9-----------------
10
8a40db1c
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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.
40ed89b3 13
fc243e94 14JH/02 OpenSSL: Suppress the sending of (stateful) TLS1.3 session tickets.
d7f31bb6
JH
15 Previously the default library behaviour applied, sending two, each in
16 its own TCP segment.
17
897024f1
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18JH/03 Debug output for ACL now gives the config file name and line number for
19 each verb.
20
f1be21cf
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21JH/04 The default received_header_text now uses the RFC 8314 tls cipher clause.
22
fe12ec88
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23JH/05 DKIM: ensure that dkim_domain elements are lowercased before use.
24
05bf16f6
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25JH/06 Fix buggy handling of autoreply bounce_return_size_limit, and a possible
26 buffer overrun for (non-chunking) other transports.
27
fc243e94
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28JH/07 GnuTLS: Our use of late (post-handshake) certificate verification, under
29 TLS1.3, means that a server rejecting a client certificate is not visible
30 to the client until the first read of encrypted data (typically the
31 response to EHLO). Add detection for that case and treat it as a failed
32 TLS connection attempt, so that the normal retry-in-clear can work (if
33 suitably configured).
34
c05bdbd6 35JB/01 Bug 2375: fix expansions of 822 addresses having comments in local-part
e2ff8e24
JB
36 and/or domain. Found and fixed by Jason Betts.
37
40ed89b3 38
d99f54e4
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39Exim version 4.92
40-----------------
41
9723f966
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42JH/01 Remove code calling the customisable local_scan function, unless a new
43 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
44
45JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
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46 non-signal-safe functions being used.
47
48JH/03 Bug 2269: When presented with a received message having a stupidly large
49 number of DKIM-Signature headers, disable DKIM verification to avoid
50 a resource-consumption attack. The limit is set at twenty.
9723f966 51
ea7b1f16
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52JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
53 report of oldest_pass in ${authres } in consequence, and separate out
54 some descriptions of reasons for verification fail.
55
cfbb0d24
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56JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
57 files in the spool were present and unlocked. A queue-runner could spot
58 them, resulting in a duplicate delivery. Fix that by doing the unlock
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59 after the unlink. Investigation by Tim Stewart. Take the opportunity to
60 add more error-checking on spoolfile handling while that code is being
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61 messed with.
62
85defcf0
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63PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
64 No known attacks, no CVE, this is defensive hardening.
65
1bd642c2
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66JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
67 a queue-runner could start a delivery while other operations were ongoing.
68 Cutthrough delivery was a common victim, resulting in duplicate delivery.
69 Found and investigated by Tim Stewart. Fix by using the open message data
70 file handle rather than opening another, and not locally closing it (which
71 releases a lock) for that case, while creating the temporary .eml format
72 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
73
2ddb4094
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74JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
75 $sender_verify_failure/$recipient_verify_failure to "random".
76
1613fd68
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77JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
78 legitimate.
79
e6057245
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80JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
81 Previously this would segfault.
82
7b9822bf
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83JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
84 segfault.
85
d8d9f930
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86JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
87 like zero, since the resolver should be doing this for us, But we need one
88 as a CNAME but no MX presence gets the CNAME returned; we need to check
89 that doesn't point to an MX to declare it "no MX returned" rather than
90 "error, loop". A new main option is added so the older capability of
91 following some limited number of chain links is maintained.
92
61e3f250
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93JH/12 Add client-ip info to non-pass iprev ${authres } lines.
94
7a8b9519
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95JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
96 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
97 now-deprecated earlier definitions used only specified the range up to TLS
98 1.2 (in the older-version library docs).
99
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100JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
101
74f1a423
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102JH/15 Rework TLS client-side context management. Stop using a global, and
103 explicitly pass a context around. This enables future use of TLS for
104 connections to service-daemons (eg. malware scanning) while a client smtp
105 connection is using TLS; with cutthrough connections this is quite likely.
106
5054c4fd 107JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
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108
109JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 110
946515bf
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111JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
112 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
113 Previously the "utf8" would be re-prepended for every additional message.
114
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115JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
116 Previously thery were accepted, resulting in issues when attempting to
117 forward messages to a non-supporting MTA.
118
1bca4f5f
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119PP/02 Let -n work with printing macros too, not just options.
120
8a6b4e02
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121JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
122 one parent address was copied, and bogus data was used at delivery-logging
123 time. Either a crash (after delivery) or bogus log data could result.
124 Discovery and analysis by Tim Stewart.
125
0a682b6c
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126PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
127 Previously if the string ended mid-character, we did not insert the
128 promised '?' replacement.
129
c2c451ac
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130PP/04 Documentation: current string operators work on bytes, not codepoints.
131
8768d548
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132JH/21 Change as many as possible of the global flags into one-bit bitfields; these
133 should pack well giving a smaller memory footprint so better caching and
134 therefore performance. Group the declarations where this can't be done so
135 that the byte-sized flag variables are not interspersed among pointer
136 variables, giving a better chance of good packing by the compiler.
137
5455f548
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138JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
139 non-null, to avoid issues with sites running BATV. Previously reports were
140 sent with an empty envelope sender so looked like bounces.
141
25beaee4
MK
142JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
143 The ignore_error flag wasn't being returned from the filter subprocess so
144 was not set for later routers. Investigation and fix by Matthias Kurz.
145
7ea1237c 146JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 147 and a msg:complete for the whole, when a message is manually removed using
7ea1237c
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148 -Mrm. Developement by Matthias Kurz, hacked on by JH.
149
ebda598a
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150JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
151 a "Gnu special" function, asprintf() in the DB utility binary builds; I
152 hope that is portable enough.
153
570cb1bd
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154JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
155 requiring a known-CA anchor certificate; make it now rely entirely on the
156 TLSA as an anchor. Checking the name on the leaf cert against the name
157 on the A-record for the host is still done for TA (but not for EE mode).
158
eb58ddf5
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159JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
160 included in delivery lines for non-proxied connections, when compiled with
161 SUPPORT_SOCKS and running with proxy logging enabled.
162
ffbc20ed
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163JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
164 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
165 move the existing event to fire before the normal logging of message
166 failure so that custom logging is bracketed by normal logging.
167
4e928780
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168JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
169 msg:fail:internal event. Developement by Matthias Kurz.
170
75c121f0 171JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 172 far too small for todays use of crypto signatures stored there. Go all
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173 the way to the max DNS message size of 64kB, even though this might be
174 overmuch for IOT constrained device use.
175
e30f4f43
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176JH/31 Fix a bad use of a copy function, which could be used to pointlessly
177 copy a string over itself. The library routine is documented as not
178 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
179
a45431fa
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180JH/32 For main options check_spool_space and check_inode_space, where the
181 platform supports 64b integers, support more than the previous 2^31 kB
182 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
183 the previous G, M, k.
184
c0fb53b7
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185JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
186 $authenticated_fail_id variable on authentication failure. Previously
187 it was unset.
188
6aac3239
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189JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
190 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
191 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
192 GNUTLS_SEC_PARAM_MEDIUM.
193
5a2a0989
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194JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
195 side. Previously we would continue as if no SNI had been received.
196
de6f74f2 197JH/36 Harden the handling of string-lists. When a list consisted of a sole
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198 "<" character, which should be a list-separator specification, we walked
199 off past the nul-terimation.
200
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201JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
202 causes) even when the retry time is not yet met. Previously they were
203 not, meaning that when (say) an account was over-quota and temp-rejecting,
204 and multiple senders' messages were queued, only one sender would get
205 notified on each configured delay_warning cycle.
206
aa6e77af 207JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 208
25fa0868
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209JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
210 cipher-suites, an error can be left on the stack even for a succeeding
211 accept; this results in impossible error messages when a later operation
212 actually does fail.
213
cb6bd80f
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214AM/01 Bug 2359: GnuTLS: repeat lowlevel read and write operations while they
215 return error codes indicating retry. Under TLS1.3 this becomes required.
216
217JH/40 Fix the feature-cache refresh for EXPERIMENTAL_PIPE_CONNECT. Previously
218 it only wrote the new authenticators, resulting in a lack of tracking of
219 peer changes of ESMTP extensions until the next cache flush.
518b70e9 220
56ac062a
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221JH/41 Fix the loop reading a message header line to check for integer overflow,
222 and more-often against header_maxsize. Previously a crafted message could
223 induce a crash of the recive process; now the message is cleanly rejected.
224
ae63862b
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225JH/42 Bug 2366: Fix the behaviour of the dkim_verify_signers option. It had
226 been totally disabled for all of 4.91. Discovery and fix by "Mad Alex".
227
9723f966 228
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229Exim version 4.91
230-----------------
459fca58 231
c39c8870 232GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
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233 When redis_servers is set to a list of > 1 element, and the Redis servers
234 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
235 case of MOVED into a DEFER case instead, thus moving the query onto the
236 next server in the list. For a cluster of N elements, all N servers must
237 be defined in redis_servers.
c39c8870 238
0800ef83
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239GF/02 Catch and remove uninitialized value warning in exiqsumm
240 Check for existence of @ARGV before looking at $ARGV[0]
241
459fca58
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242JH/01 Replace the store_release() internal interface with store_newblock(),
243 which internalises the check required to safely use the old one, plus
244 the allocate and data copy operations duplicated in both (!) of the
245 extant use locations.
246
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247JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
248 modifier. This matches the restriction on the commandline.
249
bbfb5dcd
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250JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
251 Previously only the last row was returned.
252
a05d3e34
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253JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
254 we assumed that tags in the header were well-formed, and parsed the
255 element content after inspecting only the first char of the tag.
256 Assumptions at that stage could crash the receive process on malformed
257 input.
258
ce93c6d8
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259JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
260 While running the DKIM ACL we operate on the Permanent memory pool so that
261 variables created with "set" persist to the DATA ACL. Also (at any time)
262 DNS lookups that fail create cache records using the Permanent pool. But
263 expansions release any allocations made on the current pool - so a dnsdb
264 lookup expansion done in the DKIM ACL releases the memory used for the
265 DNS negative-cache, and bad things result. Solution is to switch to the
266 Main pool for expansions.
267 While we're in that code, add checks on the DNS cache during store_reset,
268 active in the testsuite.
269 Problem spotted, and debugging aided, by Wolfgang Breyha.
270
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271JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
272 When none of the hosts presented to a transport match an already-open
273 connection, close it and proceed with the list. Previously we would
274 queue the message. Spotted by Lena with Yahoo, probably involving
275 round-robin DNS.
276
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277JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
278 Previously a spurious "250 OK id=" response was appended to the proper
279 failure response.
280
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281JH/08 The "support for" informational output now, which built with Content
282 Scanning support, has a line for the malware scanner interfaces compiled
283 in. Interface can be individually included or not at build time.
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284
285JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
286 by the template makefile "src/EDITME". The "STREAM" support for an older
287 ClamAV interface method is removed.
c11d665d 288
ba0e37b1
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289JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
290 rows affected is given instead).
291
96508de1
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292JH/11 The runtime Berkeley DB library version is now additionally output by
293 "exim -d -bV". Previously only the compile-time version was shown.
294
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295JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
296 SMTP connection. Previously, when one had more receipients than the
297 first, an abortive onward connection was made. Move to full support for
298 multiple onward connections in sequence, handling cutthrough connection
299 for all multi-message initiating connections.
300
f83a760f
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301JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
302 routers. Previously, a multi-recipient message would fail to match the
303 onward-connection opened for the first recipient, and cause its closure.
304
f1fed05b
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305JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
306 a timeout on read on a GnuTLS initiating connection, resulting in the
307 initiating connection being dropped. This mattered most when the callout
308 was marked defer_ok. Fix to keep the two timeout-detection methods
309 separate.
310
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311JH/15 Relax results from ACL control request to enable cutthrough, in
312 unsupported situations, from error to silently (except under debug)
313 ignoring. This covers use with PRDR, frozen messages, queue-only and
314 fake-reject.
315
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316HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
317
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318JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
319 metadata, resulting in a crash in free().
320
aab9a843 321PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 322 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 323 Broken also in d185889f4, with init system revamp.
7be14582 324
83d2a861
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325JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
326 Previously we abruptly closed the connection after reading a malware-
327 found indication; now we go on to read the "scan ok" response line,
328 and send a quit.
329
6741531c
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330JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
331 ACL. Previously, a crash would result.
332
85e03244
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333JH/19 Speed up macro lookups during configuration file read, by skipping non-
334 macro text after a replacement (previously it was only once per line) and
335 by skipping builtin macros when searching for an uppercase lead character.
336
c0635b6d
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337JH/20 DANE support moved from Experimental to mainline. The Makefile control
338 for the build is renamed.
339
b808677c
JH
340JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
341 was allocated for every new TLS startup, meaning one per message. Fix
342 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
343
6678c382
JH
344JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
345 reported the original. Fix to report (as far as possible) the ACL
346 result replacing the original.
347
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348JH/23 Fix memory leak during multi-message connections using STARTTLS under
349 OpenSSL. Certificate information is loaded for every new TLS startup,
350 and the resources needed to be freed.
351
15ae19f9
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352JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
353
e6532c4a
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354JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
355 was not propagated.
356
2556b3c6
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357JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
358 DATA response info to the (existing) per-recipient response info for
359 the "C=" log element. It can have useful tracking info from the
360 destination system. Patch from Simon Arlott.
361
fc8cd529
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362JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
363 length value. Previously this would segfault.
364
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365HS/02 Support Avast multiline protoocol, this allows passing flags to
366 newer versions of the scanner.
367
e04bfa34
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368JH/28 Ensure that variables possibly set during message acceptance are marked
369 dead before release of memory in the daemon loop. This stops complaints
370 about them when the debug_store option is enabled. Discovered specifically
371 for sender_rate_period, but applies to a whole set of variables.
c232fc99
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372 Do the same for the queue-runner and queue-list loops, for variables set
373 from spool message files. Do the same for the SMTP per-message loop, for
374 certain variables indirectly set in ACL operations.
e04bfa34 375
ecce6d9a
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376JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
377 as a multi-recipient message from a mailinglist manager). The coding had
378 an arbitrary cutoff number of characters while checking for more input;
379 enforced by writing a NUL into the buffer. This corrupted long / fast
380 input. The problem was exposed more widely when more pipelineing of SMTP
381 responses was introduced, and one Exim system was feeding another.
382 The symptom is log complaints of SMTP syntax error (NUL chars) on the
383 receiving system, and refused recipients seen by the sending system
384 (propating to people being dropped from mailing lists).
385 Discovered and pinpointed by David Carter.
386
c9cf9ac4
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387JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
388 replaced by the ${authresults } expansion.
389
b3b37076
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390JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
391
830832c9
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392HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
393 allows proper process termination in container environments.
394
f64e8b5f
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395JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
396 Previously the "final dot" had a newline after it; ensure it is CR,LF.
397
8f0776b5
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398JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
399 and "err_perm", deprecated since 4.83 when the RFC-defined words
400 "temperror" and "permerror" were introduced.
401
857eaf37
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402JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
403 transport-filters or DKIM-signing. The restriction was lost in the
404 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 405 Extend the restriction to also cover ARC-signing.
857eaf37 406
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407JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
408 in defer=pass mode supply a 450 to the initiator. Previously the message
409 would be spooled.
410
405074ad
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411PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
412 tls_require_ciphers is used as before.
413
eb445b04
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414HS/03 Malware Avast: Better match the Avast multiline protocol. Add
415 "pass_unscanned". Only tmpfails from the scanner are written to
416 the paniclog, as they may require admin intervention (permission
417 denied, license issues). Other scanner errors (like decompression
418 bombs) do not cause a paniclog entry.
ad93c40f 419
d342446f
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420JH/36 Fix reinitialisation of DKIM logging variable between messages.
421 Previously it was possible to log spurious information in receive log
422 lines.
423
a28050f8
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424JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
425 triggered odd behaviour from Outlook Express clients.
426
ddd16464
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427PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
428 suffix list.
429
321ef002
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430JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
431 since the IETF WG has not yet settled on that versus the original
432 "bare" representation.
433
3203e7ba
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434JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
435 Previously the millisecond value corrupted the output.
436 Fix also for syslog_pid=no and log_selector +pid, for which the pid
437 corrupted the output.
438
bbfb5dcd 439
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440Exim version 4.90
441-----------------
442
443JH/01 Rework error string handling in TLS interface so that the caller in
444 more cases is responsible for logging. This permits library-sourced
445 string to be attached to addresses during delivery, and collapses
446 pairs of long lines into single ones.
447
856d1e16
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448PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
449 during configuration. Wildcards are allowed and expanded.
450
b9df1829
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451JH/02 Rework error string handling in DKIM to pass more info back to callers.
452 This permits better logging.
453
875512a3
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454JH/03 Rework the transport continued-connection mechanism: when TLS is active,
455 do not close it down and have the child transport start it up again on
456 the passed-on TCP connection. Instead, proxy the child (and any
457 subsequent ones) for TLS via a unix-domain socket channel. Logging is
458 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 459 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 460
fc3f96af
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461JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
462 identical IP addresses on different listening ports. Will also affect
463 "exiwhat" output.
464
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465PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
466 add noisy ifdef guards to special-case this sillyness.
467 Patch from Bernd Kuhls.
468
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469JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
470 than 255 are no longer allowed.
471
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472JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
473 Disable the session-cache too, which might reduce our load. Since we
474 currrectly use a new context for every connection, both as server and
475 client, there is no benefit for these.
476 GnuTLS appears to not support tickets server-side by default (we don't
477 call gnutls_session_ticket_enable_server()) but client side is enabled
478 by default on recent versions (3.1.3 +) unless the PFS priority string
479 is used (3.2.4 +).
480
6e411084
PP
481PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
482 <https://reproducible-builds.org/specs/source-date-epoch/>.
483
4c2471ca
JH
484JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
485 the check for any unsuccessful recipients did not notice the limit, and
486 erroneously found still-pending ones.
487
4e910c01
JH
488JH/08 Pipeline CHUNKING command and data together, on kernels that support
489 MSG_MORE. Only in-clear (not on TLS connections).
490
42055a33
JH
491JH/09 Avoid using a temporary file during transport using dkim. Unless a
492 transport-filter is involved we can buffer the headers in memory for
493 creating the signature, and read the spool data file once for the
494 signature and again for transmission.
495
eeb35890
JH
496JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
497 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 498 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 499
b7d3afcf
JH
500JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
501 case where the routing stage had gathered several addresses to send to
502 a host before calling the transport for the first, we previously failed
503 to close down TLS in the old transport process before passing the TCP
504 connection to the new process. The new one sent a STARTTLS command
505 which naturally failed, giving a failed delivery and bloating the retry
506 database. Investigation and fix prototype from Wolfgang Breyha.
507
40525d07
JH
508JH/12 Fix check on SMTP command input synchronisation. Previously there were
509 false-negatives in the check that the sender had not preempted a response
510 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 511 awareness of the SMTP input buffering.
40525d07 512
f33875c3
PP
513PP/04 Add commandline_checks_require_admin option.
514 Exim drops privileges sanely, various checks such as -be aren't a
515 security problem, as long as you trust local users with access to their
516 own account. When invoked by services which pass untrusted data to
517 Exim, this might be an issue. Set this option in main configuration
518 AND make fixes to the calling application, such as using `--` to stop
519 processing options.
520
a5ffa9b4
JH
521JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
522 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
523 responses to those, into a single TLS record each way (this usually means
524 a single packet). As a side issue, smtp_enforce_sync now works on TLS
525 connections.
925ac8e4 526
6600985a
PP
527PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
528 affects you only if you're dancing at the edge of the param size limits.
529 If you are, and this message makes sense to you, then: raise the
530 configured limit or use OpenSSL 1.1. Nothing we can do for older
531 versions.
532
ac4d558b
JH
533JH/14 For the "sock" variant of the malware scanner interface, accept an empty
534 cmdline element to get the documented default one. Previously it was
535 inaccessible.
536
e69636bc
JH
537JH/15 Fix a crash in the smtp transport caused when two hosts in succession
538 are unsuable for non-message-specific reasons - eg. connection timeout,
539 banner-time rejection.
540
a843a57e
JH
541JH/16 Fix logging of delivery remote port, when specified by router, under
542 callout/hold.
543
8e041ae0
PP
544PP/06 Repair manualroute's ability to take options in any order, even if one
545 is the name of a transport.
833c70bc
PP
546 Fixes bug 2140.
547
35a04365
HSHR
548HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
549
4226691b
JH
550JH/17 Change the list-building routines interface to use the expanding-string
551 triplet model, for better allocation and copying behaviour.
552
d185889f
JH
553JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
554 Previously it was constructed the first time a possibly-matching string
555 was met in the configuration file input during startup; now it is done
556 during compilation.
557
0a6c178c
JH
558JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
559 compatible one, to avoid the (poorly documented) possibility of a config
560 file in the working directory redirecting the DB files, possibly correpting
02745400 561 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 562
fae8970d
JH
563JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
564 cache-hot. Previously, although the result was properly cached, the
565 initial verify call returned a defer.
566
ad1a76fe 567JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
568 the main verify for receipient in uncached-mode.
569
ad1a76fe
JH
570JH/22 Retire historical build files to an "unsupported" subdir. These are
571 defined as "ones for which we have no current evidence of testing".
572
135e9496
JH
573JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
574 if present. Previously it was ignored.
575
f2ed27cf
JH
576JH/24 Start using specified-initialisers in C structure init coding. This is
577 a C99 feature (it's 2017, so now considered safe).
578
7eb0e5d2
JH
579JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
580 if was a fixed-sized field and bitmask ops via macros; it is now more
581 extensible.
582
4f9f4be4
583PP/07 GitHub PR 56: Apply MariaDB build fix.
584 Patch provided by Jaroslav Škarvada.
585
dc4de9cc
PP
586PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
587 during Coverity cleanups [4.87 JH/47]
588 Diagnosis and fix provided by Michael Fischer v. Mollard.
589
ea18931d
JH
590JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
591 the right size to place the terminating semicolon on its own folded
592 line, the header hash was calculated to an incorrect value thanks to
593 the (relaxed) space the fold became.
594
0768462d 595HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
596 and confused the parent.
597
848214f7
JH
598JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
599 which could crash as a result. This could lead to undeliverable messages.
600
9e0ed81f
JH
601JH/28 Logging: "next input sent too soon" now shows where input was truncated
602 for log purposes.
603
2540f2f8
JH
604JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
605 matters on fast-turnover and PID-randomising systems, which were getting
606 out-of-order delivery.
607
e5ab0ba9
JH
608JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
609 a possibly-overlapping copy. The symptom was that "Remote host closed
610 connection in response to HELO" was logged instead of the actual 4xx
611 error for the HELO.
612
e99a3a6c
JH
613JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
614 Previously only that bufferd was discarded, resulting in SYMTP command
615 desynchronisation.
616
18067c75
JH
617JH/32 DKIM: when a message has multiple signatures matching an identity given
618 in dkim_verify_signers, run the dkim acl once for each. Previously only
619 one run was done. Bug 2189.
620
72934ba7
JH
621JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
622 "panic the current process" to "deliberately defer". The panic log is
623 still written with the problem list name; the mail and reject logs now
624 get a temp-reject line for the message that was being handled, saying
625 something like "domains check lookup or other defer". The SMTP 451
626 message is still "Temporary local problem".
627
625667b6
JH
628JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
629 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
630 freed. CVE-2017-16943.
631
632HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
633 from SMTP input. Previously it was always done; now only done for DATA
634 and not BDAT commands. CVE-2017-16944.
625667b6 635
d21bf202
JH
636JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
637 to the message (such as an overlong header line). Previously this was
638 not done and we did not exit BDAT mode. Followon from the previous item
639 though a different problem.
640
acfc18c3 641
fd047340 642Exim version 4.89
acfc18c3 643-----------------
4c57a40e 644
9427e879 645JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 646 than -2003 did; needs libidn2 in addition to libidn.
fd047340 647
7b283890
JH
648JH/02 The path option on a pipe transport is now expanded before use.
649
4c57a40e
PP
650PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
651 Patch provided by "Björn", documentation fix added too.
652
5d036699
JH
653JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
654 missing a wire-to-host endian conversion.
655
f4630439
JH
656JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
657 close after a BDAT command line could be taken as a following command,
658 giving a synch failure. Fix by only checking for synch immediately
659 before acknowledging the chunk.
660
f988ce57
JS
661PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
662 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
663 macro. Patches provided by Josh Soref.
664
bd8fbe36
JH
665JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
666 Previously we did not; the RFC seems ambiguous and VRFY is not listed
667 by IANA as a service extension. However, John Klensin suggests that we
668 should.
669
670JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
671 the dkim code may be unix-mode line endings rather than smtp wire-format
672 CRLF, so prepend a CR to any bare LF.
fd047340 673
bd8fbe36 674JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
675 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
676
bd8fbe36
JH
677JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
678 the first were themselves being wrongly included in the feed into dkim
679 processing; with most chunk sizes in use this resulted in an incorrect
680 body hash calculated value.
681
eea19017
JH
682JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
683 DKIM signature block, for verification. Although advised against by
684 standards it is specifically not ruled illegal.
685
44e6651b
JH
686JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
687
688JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
689 missing a body hash (the bh= tag).
690
691JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
692 It seems that HAProxy sends the Proxy Protocol information in clear and
693 only then does a TLS startup, so do the same.
694
695JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
696 TCP connections (such as for Spamd) unless the daemon successfully set
697 Fast Open mode on its listening sockets. This fixes breakage seen on
698 too-old kernels or those not configured for Fast Open, at the cost of
699 requiring both directions being enabled for TFO, and TFO never being used
700 by non-daemon-related Exim processes.
701
702JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
703 endings, at least on the first header line. Try to canonify any that get
704 past that check, despite the cost.
705
b6040544
JH
706JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
707 now limited to an arbitrary five deep, while parsing addresses with the
708 strip_excess_angle_brackets option enabled.
709
f700ea4d
PP
710PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
711 instead leave the unprompted TLS handshake in socket buffer for the
712 TLS library to consume.
713
da88acae
PP
714PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
715
f6ef9370
PP
716PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
717
90341c71
JH
718JH/16 Drop variables when they go out of scope. Memory management drops a whole
719 region in one operation, for speed, and this leaves assigned pointers
720 dangling. Add checks run only under the testsuite which checks all
721 variables at a store-reset and panics on a dangling pointer; add code
722 explicitly nulling out all the variables discovered. Fixes one known
723 bug: a transport crash, where a dangling pointer for $sending_ip_address
724 originally assigned in a verify callout, is re-used.
725
1ec2ab36
PP
726PP/06 Drop '.' from @INC in various Perl scripts.
727
728PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
729
730PP/08 Reduce a number of compilation warnings under clang; building with
731 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
732 should be warning-free.
733
8b2b9480
PP
734JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
735
736HS/01 Fix portability problems introduced by PP/08 for platforms where
737 realloc(NULL) is not equivalent to malloc() [SunOS et al].
738
d953610f
HSHR
739HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
740 chunk. This allows us to accept broken chunked messages. We need a more
741 general solution here.
742
7dc5f827
PP
743PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
744 already-broken messages in the queue.
745
4bb432cb
PP
746JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
747
3b1a84c8
PP
748JH/19 Fix reference counting bug in routing-generated-address tracking.
749
902fbd69 750
8d042305
JH
751Exim version 4.88
752-----------------
4c57a40e 753
9094b84b
JH
754JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
755 supports it and a size is available (ie. the sending peer gave us one).
8d042305 756
03d5892b
JH
757JH/02 The obsolete acl condition "demime" is removed (finally, after ten
758 years of being deprecated). The replacements are the ACLs
759 acl_smtp_mime and acl_not_smtp_mime.
760
4b0fe319
JH
761JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
762 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
763 or even an in-clear connection were permitted. Now, if the host lookup
764 was dnssec and dane was requested then the host is only used if the
765 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
766 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
767 if one fails this test.
768 This means that a poorly-configured remote DNS will make it incommunicado;
769 but it protects against a DNS-interception attack on it.
770
789f8a4f
JH
771JH/04 Bug 1810: make continued-use of an open smtp transport connection
772 non-noisy when a race steals the message being considered.
773
23bb6982 774JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 775 self-signed certificate for inbound TLS connections.
23bb6982 776
0bd1b1ed 777JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 778 in rewrites and routers.
0bd1b1ed 779
20b9a2dc
JH
780JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
781 and logged a warning sing 4.83; now they are a configuration file error.
782
05392bbc
JH
783JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
784 (lacking @domain). Apply the same qualification processing as RCPT.
785
1a6230a3
JH
786JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
787
cfab9d68
JH
788JH/10 Support ${sha256:} applied to a string (as well as the previous
789 certificate).
790
98c82a3d
JH
791JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
792 a cutthrough deliver is pending, as we always want to make a connection.
793 This also avoids re-routing the message when later placing the cutthrough
794 connection after a verify cache hit.
795 Do not update it with the verify result either.
796
797JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
798 when routing results in more than one destination address.
799
ae8386f0
JH
800JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
801 signing (which inhibits the cutthrough capability). Previously only
802 the presence of an option was tested; now an expansion evaluating as
803 empty is permissible (obviously it should depend only on data available
804 when the cutthrough connection is made).
805
0d9fa8c0
JH
806JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
807 the relevant preceding SMTP command did not note the pipelining mode.
808
3581f321
JH
809JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
810 Previously they were not counted.
811
ef3a1a30
JH
812JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
813 as one having no matching records. Previously we deferred the message
814 that needed the lookup.
815
4c04137d 816JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
817 distinguished as "(=".
818
1435d4b2
JH
819JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
820 for missing MX records. Previously it only worked for missing A records.
821
eea0defe
JB
822JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
823
824JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
825 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 826
4c04137d 827JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
828 even for a "none" policy. Patch from Tony Meyer.
829
1c788856
JH
830JH/22 Fix continued use of a connection for further deliveries. If a port was
831 specified by a router, it must also match for the delivery to be
832 compatible.
833
e3b1f624
JH
834JH/23 Bug 1874: fix continued use of a connection for further deliveries.
835 When one of the recipients of a message was unsuitable for the connection
836 (has no matching addresses), we lost track of needing to mark it
837 deferred. As a result mail would be lost.
838
a57ce043
JH
839JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
840
f59aaaaa 841JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
842 takes up less space and should be simpler to maintain. Merge the ACL
843 condition decode tables also, with similar effect.
d7bed771 844
d1f9fb42
JH
845JH/26 Fix problem with one_time used on a redirect router which returned the
846 parent address unchanged. A retry would see the parent address marked as
847 delivered, so not attempt the (identical) child. As a result mail would
848 be lost.
849
92b0827a
JH
850JH/27 Fix a possible security hole, wherein a process operating with the Exim
851 UID can gain a root shell. Credit to http://www.halfdog.net/ for
852 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
853 itself :(
854
ddf1b11a
JH
855JH/28 Enable {spool,log} filesystem space and inode checks as default.
856 Main config options check_{log,spool}_{inodes,space} are now
857 100 inodes, 10MB unless set otherwise in the configuration.
858
3cc3f762
JH
859JH/29 Fix the connection_reject log selector to apply to the connect ACL.
860 Previously it only applied to the main-section connection policy
861 options.
862
ae5afa61
JH
863JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
864
317e40ac
PP
865PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
866 by me. Added RFC7919 DH primes as an alternative.
867
8b0fb68e
PP
868PP/02 Unbreak build via pkg-config with new hash support when crypto headers
869 are not in the system include path.
870
ad7fc6eb 871JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 872 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
873 Exim did stdio operations after fclose. This was exposed by a recent
874 change which nulled out the file handle after the fclose.
ad7fc6eb 875
ee5b1e28
JH
876JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
877 signed directly by the cert-signing cert, rather than an intermediate
878 OCSP-signing cert. This is the model used by LetsEncrypt.
879
5ddc9771
JH
880JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
881
8d73599f
JH
882HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
883 an incoming connection.
884
446415f5
HSHR
885HS/02 Bug 1802: Do not half-close the connection after sending a request
886 to rspamd.
887
8e53a4fc
HSHR
888HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
889 fallback to "prime256v1".
8d042305 890
87cb4a16 891JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 892 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
893
894
0d9b78be
JH
895Exim version 4.87
896-----------------
4c57a40e 897
82d14d6a
JH
898JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
899 and 3.4.4 - once the server is enabled to respond to an OCSP request
900 it does even when not requested, resulting in a stapling non-aware
901 client dropping the TLS connection.
0d9b78be 902
6c6d6e48
TF
903TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
904 support variable-length bit vectors. No functional change.
905
ac881e27
TF
906TF/02 Improve the consistency of logging incoming and outgoing interfaces.
907 The I= interface field on outgoing lines is now after the H= remote
908 host field, same as incoming lines. There is a separate
909 outgoing_interface log selector which allows you to disable the
910 outgoing I= field.
911
c8899c20
JH
912JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
913 If not running log_selector +smtp_connection the mainlog would be held
914 open indefinitely after a "too many connections" event, including to a
915 deleted file after a log rotate. Leave the per net connection logging
916 leaving it open for efficiency as that will be quickly detected by the
917 check on the next write.
918
f1b81d81
HSHR
919HS/01 Bug 1671: Fix post transport crash.
920 Processing the wait-<transport> messages could crash the delivery
921 process if the message IDs didn't exist for some reason. When
922 using 'split_spool_directory=yes' the construction of the spool
923 file name failed already, exposing the same netto behaviour.
924
f38917cc
JH
925JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
926 mime_regex ACL conditions.
927
895fbaf2
JH
928JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
929 to DSN fail messages (bounces): remote IP, remote greeting, remote response
930 to HELO, local diagnostic string.
931
805bb5c3
JH
932JH/05 Downgrade message for a TLS-certificate-based authentication fail from
933 log line to debug. Even when configured with a tls authenticator many
934 client connections are expected to not authenticate in this way, so
935 an authenticate fail is not an error.
936
56c2a7be
HSHR
937HS/02 Add the Exim version string to the process info. This way exiwhat
938 gives some more detail about the running daemon.
939
4c04137d 940JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
941 matter for fast-change records such as DNSBLs.
942
6f6dedcc
JH
943JH/07 Bug 1678: Always record an interface option value, if set, as part of a
944 retry record, even if constant. There may be multiple transports with
945 different interface settings and the retry behaviour needs to be kept
946 distinct.
947
0f557e90
JH
948JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
949
950JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
951
ec0eb1a3
JH
952JH/10 Bug 840: fix log_defer_output option of pipe transport
953
41e93589
JH
954JH/11 Bug 830: use same host for all RCPTS of a message, even under
955 hosts_randomize. This matters a lot when combined with mua_wrapper.
956
98b98887 957JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
958 ${quote_pgsql:<string>} operator.
959
98b98887
JH
960JH/13 Bug 1708: avoid misaligned access in cached lookup.
961
858e91c2
JH
962JH/14 Change header file name for freeradius-client. Relevant if compiling
963 with Radius support; from the Gentoo tree and checked under Fedora.
964
965JH/15 Bug 1712: Introduce $prdr_requested flag variable
966
6ff55e50
JH
967JH/16 Bug 1714: Permit an empty string as expansion result for transport
968 option transport_filter, meaning no filtering.
969
3b957582
JB
970JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
971
23f3dc67
JH
972JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
973 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 974 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
975 If a server certificate is not supplied (via tls_certificate) an error is
976 logged, and clients will find TLS connections fail on startup. Presumably
977 they will retry in-clear.
978 Packagers of Exim are strongly encouraged to create a server certificate
979 at installation time.
980
240c288f
JH
981HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
982 with the $config_file variable.
983
5ef5dd52
JB
984JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
985 in transport context, after the attempt, and per-recipient. The latter type
986 is per host attempted. The event data is the error message, and the errno
987 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 988 and the trailing two digits of the smtp 4xx response.
5ef5dd52 989
e161710d
GF
990GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
991 to write to mainlog (or rejectlog, paniclog) in the window between file
992 creation and permissions/ownership being changed. Particularly affects
993 installations where exicyclog is run as root, rather than exim user;
994 result is that the running daemon panics and dies.
995
a159f203
JH
996JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
997
7f06582c
JH
998JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
999 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
1000 "pri" and "weight". Note that the previous implicit priority given by the
1001 list order is no longer honoured.
1002
4c04137d 1003JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
1004 for DKIM processing.
1005
f0989ec0
JH
1006JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
1007 by defining SUPPORT_SOCKS.
74f150bf 1008
cee5f132
JH
1009JH/26 Move PROXY support from Experimental to mainline, enabled for a build
1010 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
1011 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
1012 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 1013
8c5d388a
JH
1014JH/27 Move Internationalisation support from Experimental to mainline, enabled
1015 for a build by defining SUPPORT_I18N
1016
2d8d625b
JH
1017JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
1018 of the query string, and make ${quote_redis:} do that quoting.
1019
0cbf2b82
JH
1020JH/29 Move Events support from Experimental to mainline, enabled by default
1021 and removable for a build by defining DISABLE_EVENT.
1022
f2f2c91b
JH
1023JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
1024
ce325893
JH
1025JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
1026 cached by the daemon.
1027
de78e2d5
JH
1028JH/32 Move Redis support from Experimental to mainline, enabled for a build
1029 by defining LOOKUP_REDIS. The libhiredis library is required.
1030
379ba7d0
JH
1031JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
1032 keys are given for lookup.
1033
f444c2c7
JH
1034JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
1035 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
1036 only supported when built with TLS support. The PolarSSL SHA routines
1037 are still used when the TLS library is too old for convenient support.
f444c2c7 1038
a57b6200
JH
1039JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
1040 openssl_options), for security. OpenSSL forces this from version 1.1.0
1041 server-side so match that on older versions.
1042
07c73177 1043JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1044 allocation for $value could be released as the expansion processing
07c73177 1045 concluded, but leaving the global pointer active for it.
fa01e4f8 1046
4f6ae5c3
JH
1047JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1048 and to use the domains and local_parts ACL conditions.
1049
1bc460a6
JH
1050JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1051 incorrectly not doubled on cutthrough transmission, hence seen as a
1052 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1053 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1054 via the normal store-and-forward channel. This could result in duplicates
1055 received - but deduplicating mailstores were liable to retain only the
1056 initial truncated version.
1057
ab9152ff 1058JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1059
67e87fcf
JH
1060JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1061
ab9152ff
JH
1062JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1063 we're in there, support oversigning also; bug 1309.
1064
af483912
JH
1065JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1066
bc3c7bb7 1067HS/04 Add support for keep_environment and add_environment options.
df3def24 1068
13559da6
JH
1069JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1070 either intentional arithmetic overflow during PRNG, or testing config-
1071 induced overflows.
1072
59eaad2b
JH
1073JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1074 delivery resulted in actual delivery. Cancel cutthrough before DATA
1075 stage.
1076
f9334a28
JH
1077JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1078 rejects a recipient: pass the reject to the originator.
1079
dc8091e7
JH
1080JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1081 Many were false-positives and ignorable, but it's worth fixing the
1082 former class.
1083
dfe7d917
JH
1084JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1085 for the new environment-manipulation done at startup. Move the routines
1086 from being local to tls.c to being global via the os.c file.
1087
93cc2d6e
JH
1088JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1089 an extract embedded as result-arg for a map, the first arg for extract
1090 is unavailable so we cannot tell if this is a numbered or keyed
1091 extraction. Accept either.
1092
13559da6 1093
9c695f6d
JH
1094Exim version 4.86
1095-----------------
4c57a40e 1096
9c695f6d
JH
1097JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1098 expanded.
1099
506900af
JH
1100JH/02 The smtp transport option "multi_domain" is now expanded.
1101
ad07e9ad
JH
1102JH/03 The smtp transport now requests PRDR by default, if the server offers
1103 it.
1104
01a4a5c5 1105JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1106 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1107 can be used to disable this per-host. The build option
1108 EXPERIMENTAL_CERTNAMES is withdrawn.
1109
cb1d7830 1110JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1111 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1112 For GnuTLS, only version 3.0.20 or later.
1113
610ff438 1114JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1115 (but not required) by default. The verification status is now logged by
1116 default, for both outbound TLS and client-certificate supplying inbound
1117 TLS connections
610ff438 1118
f926e272
JH
1119JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1120 sites use this now.
1121
50dc7409
JH
1122JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1123 Status Notification (bounce) messages are now MIME format per RFC 3464.
1124 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1125 under the control of the dsn_advertise_hosts option, and routers may
1126 have a dsn_lasthop option.
1127
0f0c8159
JH
1128JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1129 default, modifiable by a malware= option. The list separator for
23763898 1130 the options can now be changed in the usual way. Bug 68.
4e71661f 1131
1ad6489e
JH
1132JH/10 The smtp_receive_timeout main option is now expanded before use.
1133
aeaf5db3
JH
1134JH/11 The incoming_interface log option now also enables logging of the
1135 local interface on delivery outgoing connections.
1136
5032d1cf
JH
1137JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1138 if the interface and destination host and port all match.
1139
7e8360e6
JH
1140JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1141 /defer_ok option.
1142
c5f280e2
AL
1143JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1144 Patch from Andrew Lewis.
1145
fd4d8871 1146JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1147 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1148 modifiers per server. Patch originally by <rommer@active.by>.
1149
1150JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1151 and remote servers. Remote servers can be IPv6 addresses, and
1152 specify a port-range.
fd4d8871 1153
23763898
JH
1154JH/17 Bug 68: The spamd_address main option now supports an optional
1155 timeout value per server.
1156
2ad78978
JH
1157JH/18 Bug 1581: Router and transport options headers_add/remove can
1158 now have the list separator specified.
1159
8a512ed5 1160JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1161 option values.
8a512ed5 1162
82c0c8ea 1163JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1164 under OpenSSL.
1165
cc00f4af
JH
1166JH/21 Support for the A6 type of dns record is withdrawn.
1167
82c0c8ea
JH
1168JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1169 rather than the verbs used.
1170
b980ed83
JH
1171JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1172 from 255 to 1024 chars.
1173
6c9ed72e
JH
1174JH/24 Verification callouts now attempt to use TLS by default.
1175
cfab9d68 1176HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1177 are generic router options now. The defaults didn't change.
50dc7409 1178
f846c8f5
JH
1179JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1180 Original patch from Alexander Shikoff, worked over by JH.
1181
fd4c285c
HSHR
1182HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1183 files if ZCAT_COMMAND is not executable.
1184
4c04137d 1185JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1186
d2a2c69b
JH
1187JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1188
8241d8dd
JH
1189JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1190 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1191 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1192 (and we were inconsistent anyway for A-only vs AAAA+A).
1193
1f12df4d
JH
1194JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1195
1f155f8e
JH
1196JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1197 when evaluating $sender_host_dnssec.
1198
1705dd20
JH
1199JH/31 Check the HELO verification lookup for DNSSEC, adding new
1200 $sender_helo_dnssec variable.
1201
038597d2
PP
1202JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1203
474f71bf
JH
1204JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1205
7137ca4b
JH
1206JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1207
dcb1095c
JH
1208JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1209 documented as working, but never had. Support all but $spam_report.
1210
2f460950
JH
1211JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1212 added for tls authenticator.
1213
2f680c0c
HSHR
1214HS/03 Add perl_taintmode main config option
1215
9c695f6d 1216
e449c3b0
TL
1217Exim version 4.85
1218-----------------
4c57a40e 1219
e449c3b0
TL
1220TL/01 When running the test suite, the README says that variables such as
1221 no_msglog_check are global and can be placed anywhere in a specific
1222 test's script, however it was observed that placement needed to be near
1223 the beginning for it to behave that way. Changed the runtest perl
1224 script to read through the entire script once to detect and set these
1225 variables, reset to the beginning of the script, and then run through
1226 the script parsing/test process like normal.
1227
ac20058f
TL
1228TL/02 The BSD's have an arc4random API. One of the functions to induce
1229 adding randomness was arc4random_stir(), but it has been removed in
1230 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1231 function when detected.
1232
a9b8ec8b
JH
1233JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1234 cause callback expansion.
1235
6286d7c4
TL
1236TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1237 syntax errors in an expansion can be treated as a string instead of
1238 logging or causing an error, due to the internal use of bool_lax
1239 instead of bool when processing it.
1240
0f06b4f2 1241JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1242 server certificates when making smtp deliveries.
1243
be36e572
JH
1244JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1245
ac4ef9bd
JH
1246JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1247
0eb51736
TL
1248TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1249
c713ca4b
TL
1250TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1251 Merged patch from Sebastian Wiedenroth.
e449c3b0 1252
bd21a787
WB
1253JH/05 Fix results-pipe from transport process. Several recipients, combined
1254 with certificate use, exposed issues where response data items split
1255 over buffer boundaries were not parsed properly. This eventually
1256 resulted in duplicates being sent. This issue only became common enough
4c04137d 1257 to notice due to the introduction of connection certificate information,
bd21a787
WB
1258 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1259
8bc732e8
JH
1260JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1261 size buffer was used, resulting in syntax errors when an expansion
1262 exceeded it.
1263
a7fec7a7
JH
1264JH/07 Add support for directories of certificates when compiled with a GnuTLS
1265 version 3.3.6 or later.
1266
4c04137d 1267JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1268 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1269 both become "event_action", the variables become $event_name, $event_data
aec45841 1270 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1271 routers, transports and related events. The tls:cert event is now also
1272 raised for inbound connections, if the main configuration event_action
1273 option is defined.
774ef2d7 1274
eca4debb
TL
1275TL/06 In test suite, disable OCSP for old versions of openssl which contained
1276 early OCSP support, but no stapling (appears to be less than 1.0.0).
1277
8d692470
JH
1278JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1279 server certificate names available under the smtp transport option
1280 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1281 matches.
1282
e9477a08
JH
1283JH/10 Time-related extraction expansions from certificates now use the main
1284 option "timezone" setting for output formatting, and are consistent
1285 between OpenSSL and GnuTLS compilations. Bug 1541.
1286
ad4c5ff9
JH
1287JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1288 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1289
1290JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1291 include certificate info, eximon was claiming there were spoolfile
1292 syntax errors.
1293
3394b36a 1294JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1295
1296JH/14 Log delivery-related information more consistently, using the sequence
1297 "H=<name> [<ip>]" wherever possible.
1298
3394b36a
TL
1299TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1300 are problematic for Debian distribution, omit them from the release
1301 tarball.
1302
ad4c5ff9
JH
1303JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1304
4c04137d 1305JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1306 Bug 1561.
1307
1308JH/17 Fix a null-indirection in certextract expansions when a nondefault
1309 output list separator was used.
1310
8bc732e8 1311
1f0ebb98
TL
1312Exim version 4.84
1313-----------------
09728d20
TL
1314TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1315 checkers that were complaining about end of non-void function with no
1316 return.
1f0ebb98 1317
a612424f 1318JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1319 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1320
1321JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1322
1323TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1324 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1325
1f0ebb98 1326
c0e56233
TF
1327Exim version 4.83
1328-----------------
1329
1330TF/01 Correctly close the server side of TLS when forking for delivery.
1331
1332 When a message was received over SMTP with TLS, Exim failed to clear up
1333 the incoming connection properly after forking off the child process to
1334 deliver the message. In some situations the subsequent outgoing
1335 delivery connection happened to have the same fd number as the incoming
1336 connection previously had. Exim would try to use TLS and fail, logging
1337 a "Bad file descriptor" error.
1338
7245734e
TF
1339TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1340 utilities have not been installed.
1341
fd5dad68
JH
1342JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1343 temporary space as the ACL may create new global variables.
1344
5428a946
TL
1345TL/01 LDAP support uses per connection or global context settings, depending
1346 upon the detected version of the libraries at build time.
1347
a3c86431
TL
1348TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1349 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1350 were a direct connection from the outside internet. PPv2 support was
1351 updated based on HAProxy spec change in May 2014.
a3c86431 1352
aa26e137
JH
1353JH/02 Add ${listextract {number}{list}{success}{fail}}.
1354
5a1b8443
WB
1355TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1356 Properly escape header and check for NULL return.
1357
72c9e342
PP
1358PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1359 not dns_use_dnssec.
1360
76f44207
WB
1361JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1362
770747fd
MFM
1363TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1364 characters in header names, implemented as a verify condition.
1365 Contributed by Michael Fischer v. Mollard.
1366
8ddef691 1367TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1368 results permerror and temperror. Previous values are deprecated but
1369 still accepted. In a future release, err_perm and err_temp will be
1370 completely removed, which will be a backward incompatibility if the
1371 ACL tests for either of these two old results. Patch contributed by
8ddef691 1372 user bes-internal on the mailing list.
c0e56233 1373
b9c2e32f
AR
1374JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1375
e45a1c37
JH
1376JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1377 selectors, in both main and reject logs.
1378
67d81c10
JH
1379JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1380 failed delivery.
1381
b1f8e4f8
JH
1382JH/07 Add malware type "sock" for talking to simple daemon.
1383
511a6c14 1384JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1385
1386JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1387 routers/transports under cutthrough routing.
214042d2 1388
51c7471d
JH
1389JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1390 numbers. Touch up "bool" conditional to keep the same definition.
1391
3695be34
TL
1392TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1393
1e06383a
TL
1394JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1395
76146973
JH
1396JH/12 Expand items in router/transport headers_add or headers_remove lists
1397 individually rather than the list as a whole. Bug 1452.
1398
1399 Required for reasonable handling of multiple headers_ options when
1400 they may be empty; requires that headers_remove items with embedded
1401 colons must have them doubled (or the list-separator changed).
1402
8c8b8274
TL
1403TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1404 view the policy declared in the DMARC record. Currently, $dmarc_status
1405 is a combined value of both the record presence and the result of the
1406 analysis.
b1f8e4f8 1407
35aba663
JH
1408JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1409
8c51eead 1410JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1411 dnslookup router and the smtp transport (applying to the forward
1412 lookup).
8c51eead 1413
deae092e
HS
1414TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1415 of ldap servers used for a specific lookup. Patch provided by Heiko
1416 Schlichting.
35aba663 1417
fd3b6a4a 1418JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1419 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1420
8d91c6dc
LT
1421TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1422 Patch submitted by Lars Timman.
1423
2b4a568d
JH
1424JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1425
d2af03f4
HS
1426TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1427 Requires trusted mode and valid format message id, aborts otherwise.
1428 Patch contributed by Heiko Schlichting.
1429
9d1c15ef
JH
1430JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1431 certextract with support for various fields. Bug 1358.
1432
44662487
JH
1433JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1434 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1435 hosts_request_ocsp.
1436
ed3bba5f 1437JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1438 operate on certificate variables to give certificate fingerprints
9ef9101c 1439 Also new ${sha256:cert_variable}.
44662487 1440
8ccd00b1
JH
1441JH/23 The PRDR feature is moved from being Experimental into the mainline.
1442
8ded8589
TL
1443TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1444 Christian Aistleitner.
1445
f2de3a33
JH
1446JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1447
6eb02f88
TL
1448TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1449 file. Patch from Wolfgang Breyha.
1450
00bff6f6
JH
1451JH/25 Expand the coverage of the delivery $host and $host_address to
1452 client authenticators run in verify callout. Bug 1476.
1453
071c51f7
JH
1454JH/26 Port service names are now accepted for tls_on_connect_ports, to
1455 align with daemon_smtp_ports. Bug 72.
1456
a6d4c44e
TF
1457TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1458 support and error reporting did not work properly.
1459
3ae173e7
ACK
1460TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1461 and is readable. Patch from Andrew Colin Kissa.
1462
c13d09b8
TL
1463TL/14 Enhance documentation of ${run expansion and how it parses the
1464 commandline after expansion, particularly in the case when an
1465 unquoted variable expansion results in an empty value.
1466
0df4ab80
JH
1467JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1468
66be95e0
PP
1469PP/02 Fix internal collision of T_APL on systems which support RFC3123
1470 by renaming away from it. Addresses GH issue 15, reported by
1471 Jasper Wallace.
1472
1bd0d12b
JH
1473JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1474
0de7239e
TL
1475TL/15 SECURITY: prevent double expansion in math comparison functions
1476 (can expand unsanitized data). Not remotely exploitable.
1477 CVE-2014-2972
1478
fd3b6a4a 1479
2c422e6f 1480Exim version 4.82
98a90c36
PP
1481-----------------
1482
1483PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1484
12f69989
PP
1485PP/02 Make -n do something, by making it not do something.
1486 When combined with -bP, the name of an option is not output.
1487
54c90be1
PP
1488PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1489 by GnuTLS.
1490
1f4a55da
PP
1491PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1492 $sender_host_name and config options to manage this, and basic check
1493 routines.
1494
13363eba 1495PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1496
66645890 1497PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1498 (Only plugin which currently uses this is kerberos4, which nobody should
1499 be using, but we should make it available and other future plugins might
1500 conceivably use it, even though it would break NAT; stuff *should* be
1501 using channel bindings instead).
66645890 1502
a3fb9793 1503PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1504 name; added for Sendmail compatibility; requires admin caller.
1505 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1506 just ignore it); requires trusted caller.
a3fb9793 1507 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1508 Bugzilla 1117.
a3fb9793 1509
d27f98fe 1510TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1511
6822b909
TL
1512TL/02 Add +smtp_confirmation as a default logging option.
1513
e7568d51
TL
1514TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1515 Patch by Magnus Holmgren from 2007-02-20.
1516
ae0e32ee 1517TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1518 Bugzilla 1283 - Spec typo.
97f42f10 1519 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1520
1521TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1522
e2658fff
TL
1523TL/06 Add Experimental DMARC support using libopendmarc libraries.
1524
83712b39
TL
1525TL/07 Fix an out of order global option causing a segfault. Reported to dev
1526 mailing list by by Dmitry Isaikin.
1527
976b7e9f
JH
1528JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1529
be4a1376
JH
1530JH/02 Support "G" suffix to numbers in ${if comparisons.
1531
ec4b68e5
PP
1532PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1533
d7148a07
NM
1534NM/01 Bugzilla 1197 - Spec typo
1535 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1536
585121e2 1537JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1538
2519e60d
TL
1539PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1540 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1541 function.
a5f239e4 1542
13d08c90
PP
1543PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1544 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1545
bef3ea7f
JH
1546JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1547 "acl {{name}{arg}...}", and optional args on acl condition
1548 "acl = name arg..."
a5f239e4 1549
846726c5
JH
1550JH/05 Permit multiple router/transport headers_add/remove lines.
1551
3a796370
JH
1552JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1553
ea722490 1554JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1555 Performance patch from Paul Fisher. Bugzilla 1262.
1556
b1b05573
JH
1557JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1558 Bugzilla 884.
1559
362145b5
JH
1560JH/09 Add $headers_added variable, with content from use of ACL modifier
1561 add_header (but not yet added to the message). Bugzilla 199.
1562
3c0a92dc
JH
1563JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1564 Pulled from Bugzilla 817 by Wolfgang Breyha.
1565
6d7c6175
PP
1566PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1567 CVE-2012-5671
e78e6ecf 1568 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1569
6f123593
JH
1570JH/11 Add A= logging on delivery lines, and a client_set_id option on
1571 authenticators.
1572
c8e2fc1e
JH
1573JH/12 Add optional authenticated_sender logging to A= and a log_selector
1574 for control.
1575
005ac57f
PP
1576PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1577
3f1df0e3
PP
1578PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1579 advertise SMTP AUTH mechanism to us, instead of a generic
1580 protocol violation error. Also, make Exim more robust to bad
1581 data from the Dovecot auth socket.
1582
67bd1ab3
TF
1583TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1584
1585 When a queue runner is handling a message, Exim first routes the
1586 recipient addresses, during which it prunes them based on the retry
1587 hints database. After that it attempts to deliver the message to
1588 any remaining recipients. It then updates the hints database using
1589 the retry rules.
1590
1591 So if a recipient address works intermittently, it can get repeatedly
1592 deferred at routing time. The retry hints record remains fresh so the
1593 address never reaches the final cutoff time.
1594
1595 This is a fairly common occurrence when a user is bumping up against
1596 their storage quota. Exim had some logic in its local delivery code
1597 to deal with this. However it did not apply to per-recipient defers
1598 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1599
1ddeb334
TF
1600 This change adds a proper retry rule check during routing so that the
1601 final cutoff time is checked against the message's age. We only do
1602 this check if there is an address retry record and there is not a
1603 domain retry record; this implies that previous attempts to handle
1604 the address had the retry_use_local_parts option turned on. We use
1605 this as an approximation for the destination being like a local
1606 delivery, as in LMTP.
67bd1ab3
TF
1607
1608 I suspect this new check makes the old local delivery cutoff check
1609 redundant, but I have not verified this so I left the code in place.
1610
326cdc37
TF
1611TF/02 Correct gecos expansion when From: is a prefix of the username.
1612
1613 Test 0254 submits a message to Exim with the header
1614
1615 Resent-From: f
1616
1617 When I ran the test suite under the user fanf2, Exim expanded
1618 the header to contain my full name, whereas it should have added
1619 a Resent-Sender: header. It erroneously treats any prefix of the
1620 username as equal to the username.
1621
1622 This change corrects that bug.
1623
f62514b3
GF
1624GF/01 DCC debug and logging tidyup
1625 Error conditions log to paniclog rather than rejectlog.
1626 Debug lines prefixed by "DCC: " to remove any ambiguity.
1627
eb505532
TF
1628TF/03 Avoid unnecessary rebuilds of lookup-related code.
1629
14c7b357
PP
1630PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1631 Bug spotted by Jeremy Harris; was flawed since initial commit.
1632 Would have resulted in OCSP responses post-SNI triggering an Exim
1633 NULL dereference and crash.
1634
94eaf700
PP
1635JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1636
6f5a440a
PP
1637PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1638 Bug detection, analysis and fix by Samuel Thibault.
1639 Bugzilla 1331, Debian bug #698092.
1640
514ee161
SC
1641SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1642
fd98a5c6
JH
1643JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1644 Server implementation by Todd Lyons, client by JH.
1645 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1646 config variable "prdr_enable" controls whether the server
1647 advertises the facility. If the client requests PRDR a new
1648 acl_data_smtp_prdr ACL is called once for each recipient, after
1649 the body content is received and before the acl_smtp_data ACL.
4c04137d 1650 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1651 on the smtp transport, and the server advertisement.
1652 Default client logging of deliveries and rejections involving
1653 PRDR are flagged with the string "PRDR".
1654
035c7f1e
PP
1655PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1656 fclose(). Diagnosis by Todd Lyons.
1657
ff284120
PP
1658PP/17 Update configure.default to handle IPv6 localhost better.
1659 Patch by Alain Williams (plus minor tweaks).
1660 Bugzilla 880.
1661
26e72755
PP
1662PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1663 This is now consistent with GnuTLS, and is now documented: the
1664 previous undocumented portable approach to treating the option as
1665 unset was to force an expansion failure. That still works, and
1666 an empty string is now equivalent.
1667
0fbd9bff
PP
1668PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1669 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1670 not performing validation itself.
1671
700d22f3
PP
1672PP/20 Added force_command boolean option to pipe transport.
1673 Patch from Nick Koston, of cPanel Inc.
1674
fcc8e047
JH
1675JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1676 Bugzilla 321, 823.
1677
4c04137d 1678TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1679
8c020188
PP
1680PP/21 Fix eximon continuous updating with timestamped log-files.
1681 Broken in a format-string cleanup in 4.80, missed when I repaired the
1682 other false fix of the same issue.
1683 Report and fix from Heiko Schlichting.
1684 Bugzilla 1363.
1685
d13cdd30
PP
1686PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1687 Report from Prashanth Katuri.
1688
e2fbf4a2
PP
1689PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1690 It's SecureTransport, so affects any MacOS clients which use the
1691 system-integrated TLS libraries, including email clients.
1692
f4c1088b
PP
1693PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1694 using a MIME ACL for non-SMTP local injection.
1695 Report and assistance in diagnosis by Warren Baker.
1696
c5c2182f
PP
1697TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1698
73431ca9
JH
1699JH/16 Fix comparisons for 64b. Bugzilla 1385.
1700
2d07a215
TL
1701TL/09 Add expansion variable $authenticated_fail_id to keep track of
1702 last id that failed so it may be referenced in subsequent ACL's.
1703
a30a8861
TL
1704TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1705 Alexander Miroch.
1706
33382dd9
TL
1707TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1708 ldap library initialization, allowing self-signed CA's to be
1709 used. Also properly sets require_cert option later in code by
1710 using NULL (global ldap config) instead of ldap handle (per
1711 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1712
046172e6
TL
1713TL/12 Enhanced documentation in the ratelimit.pl script provided in
1714 the src/util/ subdirectory.
1715
581d7bee 1716TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1717 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1718 EXPERIMENTAL_TPDA.
1719
1720TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1721 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1722 redis_servers = needs to be configured which will be used by the redis
1723 lookup. Patch from Warren Baker, of The Packet Hub.
1724
237b2cf2
TL
1725TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1726
9fc5a352
TL
1727TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1728 hostname or reverse DNS when processing a host list. Used suggestions
1729 from multiple comments on this bug.
1a7b746d 1730
b10e4ec2
TL
1731TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1732
e2cebd74
TL
1733TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1734 Missed a few lines, added it to make the runtest require no keyboard
1735 interaction.
1736
1737TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1738 contains upper case chars. Make router use caseful_local_part.
1739
2519e60d
TL
1740TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1741 support when GnuTLS has been built with p11-kit.
1742
e78e6ecf 1743
4263f395
PP
1744Exim version 4.80.1
1745-------------------
1746
1747PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1748 CVE-2012-5671
2c422e6f 1749 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1750
ea722490 1751
b1770b6e 1752Exim version 4.80
0599f9cf
PP
1753-----------------
1754
1755PP/01 Handle short writes when writing local log-files.
1756 In practice, only affects FreeBSD (8 onwards).
1757 Bugzilla 1053, with thanks to Dmitry Isaikin.
1758
23c7e742
NM
1759NM/01 Bugzilla 949 - Documentation tweak
1760
b322aac8
NM
1761NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1762 improved.
1763
4a891427
NM
1764NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1765
c1e794ba 1766PP/02 Implemented gsasl authenticator.
b322aac8 1767
97753960
PP
1768PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1769
1770PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1771 `pkg-config foo` for cflags/libs.
1772
df6303fa
PP
1773PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1774 with rest of GSASL and with heimdal_gssapi.
1775
7e6a8985
PP
1776PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1777 `pkg-config foo` for cflags/libs for the TLS implementation.
1778
f1e05cc7 1779PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1780 properties get this fed in as external SSF. A number of robustness
1781 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1782
4c287009
PP
1783PP/08 cyrus_sasl server now expands the server_realm option.
1784
b98bb9ac
PP
1785PP/09 Bugzilla 1214 - Log authentication information in reject log.
1786 Patch by Jeremy Harris.
1787
4a6a987a
PP
1788PP/10 Added dbmjz lookup type.
1789
c45dd180 1790PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1791
7db8d074
PP
1792PP/12 MAIL args handles TAB as well as SP, for better interop with
1793 non-compliant senders.
1794 Analysis and variant patch by Todd Lyons.
1795
eae0036b 1796NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1797 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1798 Patch from Dirk Mueller <dmueller@suse.com>
1799
dec5017e
PP
1800PP/13 tls_peerdn now print-escaped for spool files.
1801 Observed some $tls_peerdn in wild which contained \n, which resulted
1802 in spool file corruption.
1803
c80c5570
PP
1804PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1805 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1806 or write after TLS renegotiation, which otherwise led to messages
1807 "Got SSL error 2".
1808
076b11e2
PP
1809TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1810 as a tracking header (ie: a signed header comes before the signature).
1811 Patch from Wolfgang Breyha.
1812
5407bfff
JH
1813JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1814 comma-sep list; embedded commas doubled.
1815
9e45c72b
PP
1816JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1817
e74376d8
PP
1818PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1819 diagnostics.
1820 Report and patch from Dmitry Banschikov.
1821
4c04137d 1822PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1823 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1824 failures. We appear to now support TLS1.1+ with Exim.
1825
7be682ca
PP
1826PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1827 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1828 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1829 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1830
ef840681
PP
1831PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1832 NULL dereference. Report and patch from Alun Jones.
1833
5bfb4cdf
PP
1834PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1835 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1836 Not seeing resolver debug output on NetBSD, but suspect this is a
1837 resolver implementation change.
1838
c6e95d22
PP
1839PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1840 Left warnings. Added "eximon gdb" invocation mode.
1841
9cbad13b
PP
1842PP/21 Defaulting "accept_8bitmime" to true, not false.
1843
9ee44efb
PP
1844PP/22 Added -bw for inetd wait mode support.
1845
6a6084f8
PP
1846PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1847 locate the relevant includes and libraries. Made this the default.
1848
12dd53c7
PP
1849PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1850 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1851
9e45c72b 1852JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1853 This may cause build issues on older platforms.
1854
17c76198
PP
1855PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1856 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1857 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1858 Added SNI support via GnuTLS too.
af3498d6 1859 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1860
53947857 1861PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1862
eae0036b 1863PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1864 Applied second patch from Janne, implementing suggestion to default
1865 multiple-strings-in-record handling to match SPF spec.
eae0036b 1866
9e45c72b 1867JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1868
7390e768
PP
1869PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1870 read-only, out of scope).
1871 Patch from Wolfgang Breyha, report from Stuart Northfield.
1872
08488c86
PP
1873PP/29 Fix three issues highlighted by clang analyser static analysis.
1874 Only crash-plausible issue would require the Cambridge-specific
1875 iplookup router and a misconfiguration.
1876 Report from Marcin Mirosław.
1877
6475bd82
PP
1878PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1879
81f91683
PP
1880PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1881 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1882 As part of this, removing so much warning spew let me fix some minor
1883 real issues in debug logging.
1884
5779e6aa
PP
1885PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1886 assignment on my part. Fixed.
1887
3375e053
PP
1888PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1889 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1890 Janne Snabb (who went above and beyond: thank you).
1891
1892PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1893 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1894 relatively easy to get wrong. Should also expose TLS library linkage
1895 problems.
3375e053 1896
9d26b8c0
PP
1897PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1898 64-bit ${eval} (JH/03).
1899
57eb9e91 1900PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1901 GNU libc to support some of the 64-bit stuff, should not lead to
1902 conflicts. Defined before os.h is pulled in, so if a given platform
1903 needs to override this, it can.
1904
16880d1a
PP
1905PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1906 protection layer was required, which is not implemented.
1907 Bugzilla 1254, patch from Wolfgang Breyha.
1908
a799883d
PP
1909PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1910 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1911 tls_dhparam take prime identifiers. Also unbreak combination of
1912 OpenSSL+DH_params+TLSSNI.
1913
3ecab157 1914PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1915
0599f9cf 1916
867fcbf5
PP
1917Exim version 4.77
1918-----------------
1919
1920PP/01 Solaris build fix for Oracle's LDAP libraries.
1921 Bugzilla 1109, patch from Stephen Usher.
1922
f1a29782
TF
1923TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1924
ab42bd23
TK
1925TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1926 whitespace trailer
867fcbf5 1927
0ca0cf52
TF
1928TF/02 Fix a couple more cases where we did not log the error message
1929 when unlink() failed. See also change 4.74-TF/03.
1930
921b12ca
TF
1931TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1932 lock up or crash if it happened to be inside a call to libc when it
1933 got a SIGUSR1 from exiwhat.
1934
1935 The SIGUSR1 handler appends the current process status to the process
1936 log which is later printed by exiwhat. It used to use the general
1937 purpose logging code to do this, but several functions it calls are
1938 not safe for signals.
1939
1940 The new output code in the SIGUSR1 handler is specific to the process
1941 log, and simple enough that it's easy to inspect for signal safety.
1942 Removing some special cases also simplifies the general logging code.
1943 Removing the spurious timestamps from the process log simplifies
1944 exiwhat.
1945
c99ce5c9
TF
1946TF/04 Improved ratelimit ACL condition.
1947
1948 The /noupdate option has been deprecated in favour of /readonly which
1949 has clearer semantics. The /leaky, /strict, and /readonly update modes
1950 are mutually exclusive. The update mode is no longer included in the
1951 database key; it just determines when the database is updated. (This
4c04137d 1952 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1953
1954 Exim now checks that the per_* options are used with an update mode that
1955 makes sense for the current ACL. For example, when Exim is processing a
1956 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1957 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1958 must specify per_mail/readonly. If you omit the update mode it defaults to
1959 /leaky where that makes sense (as before) or /readonly where required.
1960
1961 The /noupdate option is now undocumented but still supported for
1962 backwards compatibility. It is equivalent to /readonly except that in
1963 ACLs where /readonly is required you may specify /leaky/noupdate or
1964 /strict/noupdate which are treated the same as /readonly.
1965
1966 A useful new feature is the /count= option. This is a generalization
1967 of the per_byte option, so that you can measure the throughput of other
1968 aggregate values. For example, the per_byte option is now equivalent
1969 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1970
1971 The per_rcpt option has been generalized using the /count= mechanism
1972 (though it's more complicated than the per_byte equivalence). When it is
1973 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1974 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1975 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1976 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1977 Note that using per_rcpt with a non-readonly update mode in more than
1978 one ACL will cause the recipients to be double-counted. (The per_mail
1979 and per_byte options don't have this problem.)
1980
1981 The handling of very low rates has changed slightly. If the computed rate
1982 is less than the event's count (usually one) then this event is the first
1983 after a long gap. In this case the rate is set to the same as this event's
1984 count, so that the first message of a spam run is counted properly.
1985
1986 The major new feature is a mechanism for counting the rate of unique
1987 events. The new per_addr option counts the number of different
1988 recipients that someone has sent messages to in the last time period. It
1989 behaves like per_rcpt if all the recipient addresses are different, but
1990 duplicate recipient addresses do not increase the measured rate. Like
1991 the /count= option this is a general mechanism, so the per_addr option
1992 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1993 example, measure the rate that a client uses different sender addresses
1994 with the options per_mail/unique=$sender_address. There are further
1995 details in the main documentation.
1996
3634fc25
TF
1997TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1998
792e8a19
TF
1999TF/06 Removed a few PCRE remnants.
2000
5901f0ab
TF
2001TF/07 Automatically extract Exim's version number from tags in the git
2002 repository when doing development or release builds.
2003
7f2a2a43
PP
2004PP/02 Raise smtp_cmd_buffer_size to 16kB.
2005 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 2006
061b7ebd
PP
2007PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
2008 Heavily based on revision 40f9a89a from Simon Arlott's tree.
2009 Bugzilla 97.
2010
e12f8c32
PP
2011PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
2012
9e949f00 2013PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
2014 Bugzilla 1078. Patch from John Horne.
2015
2016PP/06 Stop make process more reliably on build failure.
2017 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 2018
555ae6af 2019PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
2020 Bugzilla 1089. Patch from Heiko Schlittermann.
2021
2022PP/08 Handle ${run} returning more data than OS pipe buffer size.
2023 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 2024
6f7fe114
PP
2025PP/09 Handle IPv6 addresses with SPF.
2026 Bugzilla 860. Patch from Wolfgang Breyha.
2027
c566dd90
PP
2028PP/10 GnuTLS: support TLS 1.2 & 1.1.
2029 Bugzilla 1156.
89f897c3
PP
2030 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
2031 Bugzilla 1095.
c566dd90 2032
d6cc7c78 2033PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
2034 New compile-time build option, EXPAND_LISTMATCH_RHS.
2035 New expansion conditions, "inlist", "inlisti".
2036
0d0e4455
PP
2037PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
2038
3399bb60 2039PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
2040
2041PP/14 fix log_write() format string regression from TF/03.
2042 Bugzilla 1152. Patch from Dmitry Isaikin.
2043
0ca0cf52 2044
10906672
PP
2045Exim version 4.76
2046-----------------
2047
2048PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2049
754a0503
PP
2050PP/02 Harmonised TLS library version reporting; only show if debugging.
2051 Layout now matches that introduced for other libraries in 4.74 PP/03.
2052
c0c7b2da
PP
2053PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2054
e97d1f08
PP
2055PP/04 New "dns_use_edns0" global option.
2056
084c1d8c
PP
2057PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2058 Bugzilla 1098.
2059
4e7ee012
PP
2060PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2061 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2062
c8d52a00
PP
2063TK/01 Updated PolarSSL code to 0.14.2.
2064 Bugzilla 1097. Patch from Andreas Metzler.
2065
54e7ce4a
PP
2066PP/07 Catch divide-by-zero in ${eval:...}.
2067 Fixes bugzilla 1102.
2068
5ee6f336
PP
2069PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2070 Bugzilla 1104.
2071
c8d52a00 2072TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2073 format-string attack -- SECURITY: remote arbitrary code execution.
2074
2075TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2076 time unintentionally subject to list matching rules, letting the header
2077 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2078 arbitrary string expansion). This allowed for information disclosure.
2079
2080PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2081 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2082
10906672 2083
aa097c4c
NM
2084Exim version 4.75
2085-----------------
2086
4c04137d 2087NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2088 Bugzilla 1073
2089
7f3d9eff
TF
2090TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2091 This fixes portability to compilers other than gcc, notably
2092 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2093
159f52d2
TF
2094TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2095 makefiles for portability to HP-UX and POSIX correctness.
2096
0cc9542a
PP
2097PP/01 Permit LOOKUP_foo enabling on the make command-line.
2098 Also via indented variable definition in the Makefile.
2099 (Debugging by Oliver Heesakkers).
2100
f7274286
PP
2101PP/02 Restore caching of spamd results with expanded spamd_address.
2102 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2103
7b797365
PP
2104PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2105 Improves build reliability. Fix from: Frank Elsner
2106
caacae52
NM
2107NM/02 Fix wide character breakage in the rfc2047 coding
2108 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2109
09dcaba9
NM
2110NM/03 Allow underscore in dnslist lookups
2111 Fixes bug 1026. Patch from Graeme Fowler
2112
bc19a55b
PP
2113PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2114 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2115
bd4c9759
NM
2116NM/04 Fixed exiqgrep to cope with mailq missing size issue
2117 Fixes bug 943.
2118
b72aab72
PP
2119PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2120 is logged, to avoid truncation. Patch from John Horne.
2121
2fe76745
PP
2122PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2123 Patch from Jakob Hirsch.
2124
76aa570c
PP
2125PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2126 SQL string expansion failure details.
2127 Patch from Andrey Oktyabrski.
2128
f1e5fef5
PP
2129PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2130 Patch from Simon Arlott.
2131
4d805ee9
PP
2132PP/09 New lookups functionality failed to compile on old gcc which rejects
2133 extern declarations in function scope.
2134 Patch from Oliver Fleischmann
2135
cd59ab18
PP
2136PP/10 Use sig_atomic_t for flags set from signal handlers.
2137 Check getgroups() return and improve debugging.
2138 Fixed developed for diagnosis in bug 927 (which turned out to be
2139 a kernel bug).
2140
332f5cf3
PP
2141PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2142 Patch from Mark Zealey.
2143
29cfeb94
PP
2144PP/12 Bugzilla 1056: Improved spamd server selection.
2145 Patch from Mark Zealey.
2146
660242ad
PP
2147PP/13 Bugzilla 1086: Deal with maildir quota file races.
2148 Based on patch from Heiko Schlittermann.
2149
bc4bc4c5
PP
2150PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2151 Patch from Uwe Doering, sign-off by Michael Haardt.
2152
2e64baa9
NM
2153NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2154 variable declaration deep within a block. Bug and patch from
2155 Dennis Davis.
2156
4c04137d 2157PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2158
6bac1a9a
PP
2159PP/16 Make DISABLE_DKIM build knob functional.
2160
552193f0
NM
2161NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2162 Patch by Simon Arlott
baeee2c1 2163
1b587e48
TF
2164TF/03 Fix valgrind.h portability to C89 compilers that do not support
2165 variable argument macros. Our copy now differs from upstream.
2166
aa097c4c 2167
8c07b69f
TF
2168Exim version 4.74
2169-----------------
2170
2171TF/01 Failure to get a lock on a hints database can have serious
2172 consequences so log it to the panic log.
2173
c0ea85ab
TF
2174TF/02 Log LMTP confirmation messages in the same way as SMTP,
2175 controlled using the smtp_confirmation log selector.
2176
0761d44e
TF
2177TF/03 Include the error message when we fail to unlink a spool file.
2178
0a349494
PP
2179DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2180 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2181 for maintaining out-of-tree patches for some time.
2182
2183PP/01 Bugzilla 139: Documentation and portability issues.
2184 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2185 Handle per-OS dynamic-module compilation flags.
2186
fea24b2e
PP
2187PP/02 Let /dev/null have normal permissions.
2188 The 4.73 fixes were a little too stringent and complained about the
2189 permissions on /dev/null. Exempt it from some checks.
2190 Reported by Andreas M. Kirchwitz.
2191
6545de78
PP
2192PP/03 Report version information for many libraries, including
2193 Exim version information for dynamically loaded libraries. Created
2194 version.h, now support a version extension string for distributors
2195 who patch heavily. Dynamic module ABI change.
2196
1670ef10
PP
2197PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2198 privilege escalation vulnerability whereby the Exim run-time user
2199 can cause root to append content of the attacker's choosing to
2200 arbitrary files.
2201
c0886197
PP
2202PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2203 (Wolfgang Breyha)
2204
b7487bce
PP
2205PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2206 If dropping privileges for untrusted macros, we disabled normal logging
2207 on the basis that it would fail; for the Exim run-time user, this is not
2208 the case, and it resulted in successful deliveries going unlogged.
2209 Fixed. Reported by Andreas Metzler.
2210
8c07b69f 2211
97fd1e48 2212Exim version 4.73
ed7f7860 2213-----------------
97fd1e48
PP
2214
2215PP/01 Date: & Message-Id: revert to normally being appended to a message,
2216 only prepend for the Resent-* case. Fixes regression introduced in
2217 Exim 4.70 by NM/22 for Bugzilla 607.
2218
6901c596
PP
2219PP/02 Include check_rfc2047_length in configure.default because we're seeing
2220 increasing numbers of administrators be bitten by this.
2221
a8c8d6b5
JJ
2222JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2223
77bb000f
PP
2224PP/03 Bugzilla 994: added openssl_options main configuration option.
2225
a29e5231
PP
2226PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2227
ec5a0394 2228PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2229
55c75993
PP
2230PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2231
453a6645 2232PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2233 without a peer certificate, leading to a segfault because of an
2234 assumption that peers always have certificates. Be a little more
453a6645
PP
2235 paranoid. Problem reported by Martin Tscholak.
2236
8544e77a
PP
2237PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2238 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2239 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2240 CL also introduces -bmalware, various -d+acl logging additions and
2241 more caution in buffer sizes.
8544e77a 2242
83e029d5
PP
2243PP/09 Implemented reverse_ip expansion operator.
2244
ed7f7860
PP
2245PP/10 Bugzilla 937: provide a "debug" ACL control.
2246
7d9f747b
PP
2247PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2248
4b2241d2
PP
2249PP/12 Bugzilla 973: Implement --version.
2250
10385c15
PP
2251PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2252
dbc4b90d
PP
2253PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2254
532be449
PP
2255PP/15 Bugzilla 816: support multiple condition rules on Routers.
2256
6a8de854 2257PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2258 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2259 ignore trailing whitespace.
6a8de854 2260
5dc43717
JJ
2261JJ/02 prevent non-panic DKIM error from being sent to paniclog
2262
2263JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2264 "exim" to be used
55c75993 2265
3346ab01
PP
2266PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2267 Notification from Dr Andrew Aitchison.
2268
491fab4c
PP
2269PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2270 ExtendedDetectionInfo response format.
2271 Notification from John Horne.
2272
13eb9497
PP
2273PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2274 compatible.
2275
2276PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2277 XSL and documented dependency on system catalogs, with examples of how
2278 it normally works.
2279
7f36d675
DW
2280DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2281 access.
2282
c1d94452
DW
2283DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2284 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2285 configuration file which is writeable by the Exim user or group.
2286
e2f5dc15
DW
2287DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2288 of configuration files to cover files specified with the -C option if
2289 they are going to be used with root privileges, not just the default
2290 configuration file.
2291
cd25e41d
DW
2292DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2293 option (effectively making it always true).
2294
261dc43e
DW
2295DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2296 files to be used while preserving root privileges.
2297
fa32850b
DW
2298DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2299 that rogue child processes cannot use them.
2300
79d4bc3d
PP
2301PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2302 run-time user, instead of root.
2303
43236f35 2304PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2305 Exim run-time user without dropping privileges.
2306
fb08281f
DW
2307DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2308 result string, instead of calling string_vformat() twice with the same
2309 arguments.
3346ab01 2310
74935b98
DW
2311DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2312 for other users. Others should always drop root privileges if they use
2313 -C on the command line, even for a whitelisted configure file.
2314
90b6341f
DW
2315DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2316
57730b52
ML
2317NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2318
66581d1e 2319
465e92cf
JJ
2320Exim version 4.72
2321-----------------
2322
453a6645
PP
2323JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2324 $data_path, and $header_path variables; fixed documentation bugs and
2325 typos
465e92cf 2326
453a6645
PP
2327JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2328 exipick to access non-standard spools, including the "frozen" queue
2329 (Finput)
edae0343 2330
9bd3e22c
NM
2331NM/01 Bugzilla 965: Support mysql stored procedures.
2332 Patch from Alain Williams
2333
bb576ff7
NM
2334NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2335
5a1a5845
NM
2336NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2337 Patch from Andreas Metzler
2338
981a9fad
NM
2339NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2340 Patch from Kirill Miazine
2341
7fc497ee
NM
2342NM/05 Bugzilla 671: Added umask to procmail example.
2343
1a41defa
JJ
2344JJ/03 installed exipick 20100323.0, fixing doc bug
2345
a466095c 2346NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2347 directory. Notification and patch from Dan Rosenberg.
a466095c 2348
94a6bd0b
NM
2349TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2350
2351TK/02 Improve log output when DKIM signing operation fails.
2352
2353MH/01 Treat the transport option dkim_domain as a colon separated
2354 list, not as a single string, and sign the message with each element,
2355 omitting multiple occurences of the same signer.
2356
c1b141a8
NM
2357NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2358 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2359
b26eacf1 2360NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2361 Patch by Simon Arlott
2362
179c5980 2363PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2364 MBX locking. Notification from Dan Rosenberg.
179c5980 2365
9bd3e22c 2366
7c6d71af
NM
2367Exim version 4.71
2368-----------------
2369
7d9f747b 2370TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2371
f013fb92
NM
2372NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2373
0eb8eedd
NM
2374NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2375
663ee6d9
NM
2376NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2377
177ebd9b
NM
2378NM/04 Bugzilla 915: Flag broken perl installation during build.
2379
7c6d71af 2380
210f147e
NM
2381Exim version 4.70
2382-----------------
2383
cdd3bb85 2384TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2385 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2386
2387TK/02 Write list of recipients to X-Envelope-Sender header when building
2388 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2389 Hirsch).
cdd3bb85
TK
2390
2391TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2392 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2393 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2394
2395TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2396 by Mark Daniel Reidel <mr@df.eu>.
2397
210f147e
NM
2398NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2399 When building exim an external PCRE library is now needed -
2400 PCRE is a system library on the majority of modern systems.
2401 See entry on PCRE_LIBS in EDITME file.
2402
deafd5b3
NM
2403NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2404 conversation. Added nologin parameter to request.
7d9f747b 2405 Patch contributed by Kirill Miazine.
deafd5b3 2406
089793a4
TF
2407TF/01 Do not log submission mode rewrites if they do not change the address.
2408
5f16ca82
TF
2409TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2410
dae9d94e 2411NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2412 log files in place. Contributed by Roberto Lima.
dae9d94e 2413
7d9f747b 2414NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2415
06864c44
TF
2416TF/03 Bugzilla 615: When checking the local_parts router precondition
2417 after a local_part_suffix or local_part_prefix option, Exim now
2418 does not use the address's named list lookup cache, since this
2419 contains cached lookups for the whole local part.
2420
65a7d8c3 2421NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2422 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2423
23510047 2424TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2425
7d9f747b 2426NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2427
7d8eec3a 2428NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2429 Patch provided by Jan Srzednicki.
6c588e74 2430
89dec7b6
TF
2431TF/05 Leading white space used to be stripped from $spam_report which
2432 wrecked the formatting. Now it is preserved.
5f28a6e8 2433
a99de90c
TF
2434TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2435 that they are available at delivery time.
2436
e2803e40
TF
2437TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2438
7199e1ee
TF
2439TF/08 TLS error reporting now respects the incoming_interface and
2440 incoming_port log selectors.
2441
e276e04b
TF
2442TF/09 Produce a more useful error message if an SMTP transport's hosts
2443 setting expands to an empty string.
2444
ce552449 2445NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2446 Patch provided by Phil Pennock.
ce552449 2447
e765a0f1 2448NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2449 Patch provided by Richard Godbee.
e765a0f1 2450
4f054c63 2451NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2452 acl_smtp_notquit, added index entry.
4f054c63 2453
7d9f747b
PP
2454NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2455 Patch provided by Eugene Bujak.
24c929a2 2456
7d9f747b
PP
2457NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2458 accept(). Patch provided by Maxim Dounin.
cf73943b 2459
b52bc06e 2460NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2461 Patch provided by Phil Pennock.
b52bc06e 2462
447de4b0
NM
2463NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2464
4c69d561 2465NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2466 Patch provided by Brad "anomie" Jorsch.
4c69d561 2467
d5c39246 2468NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2469 Patch provided by Dean Brooks.
9b989985 2470
0b23848a
TK
2471TK/05 Add native DKIM support (does not depend on external libraries).
2472
8f3414a1 2473NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2474 Patch provided by Graeme Fowler.
e2aacdfd 2475
fb6f955d
NM
2476NM/16 Bugzilla 851: Documentation example syntax fix.
2477
2478NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2479
7d9f747b
PP
2480NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2481 lsearch.
dbb0bf41 2482
7d9f747b
PP
2483NM/19 Bugzilla 745: TLS version reporting.
2484 Patch provided by Phil Pennock.
f3766eb5 2485
7d9f747b
PP
2486NM/20 Bugzilla 167: bool: condition support.
2487 Patch provided by Phil Pennock.
36f12725 2488
7d9f747b
PP
2489NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2490 clients. Patch provided by Phil Pennock.
e6060e2c 2491
7d9f747b
PP
2492NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2493 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2494
7d9f747b
PP
2495NM/23 Bugzilla 687: Fix misparses in eximstats.
2496 Patch provided by Heiko Schlittermann.
d5c13d66 2497
7d9f747b
PP
2498NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2499 Patch provided by Heiko Schlittermann.
b2335c0b 2500
7d9f747b 2501NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2502 plus update to original patch.
f4cd9433 2503
7d9f747b 2504NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2505
7d9f747b
PP
2506NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2507 Patch provided by David Brownlee.
8dc71ab3 2508
7d9f747b 2509NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2510
7d9f747b 2511NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2512
7d9f747b 2513NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2514
7d9f747b 2515NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2516
17792b53 2517NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2518 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2519
7d9f747b
PP
2520NM/33 Bugzilla 898: Transport filter timeout fix.
2521 Patch by Todd Rinaldo.
52383f8f 2522
91576cec 2523NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2524 Patch by Serge Demonchaux.
5ca6d115 2525
7d9f747b
PP
2526NM/35 Bugzilla 39: Base64 decode bug fixes.
2527 Patch by Jakob Hirsch.
baee9eee 2528
7d9f747b 2529NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2530
7d9f747b 2531NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2532
7d9f747b 2533NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2534
7d9f747b 2535NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2536
deafd5b3 2537
47db1125
NM
2538Exim version 4.69
2539-----------------
2540
4b3504d0
TK
2541TK/01 Add preliminary DKIM support. Currently requires a forked version of
2542 ALT-N's libdkim that I have put here:
2543 http://duncanthrax.net/exim-experimental/
2544
2545 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2546 were called 'true' and it seems that C99 defines that as a reserved
2547 keyword to be used with 'bool' variable types. That means you could
2548 not include C99-style headers which use bools without triggering
2549 build errors in sieve.c.
2550
81ea09ca
NM
2551NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2552 as mailq or other aliases. Changed the --help handling significantly
2553 to do whats expected. exim_usage() emits usage/help information.
2554
f13cddcb
SC
2555SC/01 Added the -bylocaldomain option to eximstats.
2556
7d9f747b 2557NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2558
7d9f747b 2559NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2560
7d9f747b 2561NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2562
2563
eb4c0de6
PH
2564Exim version 4.68
2565-----------------
2566
2567PH/01 Another patch from the Sieve maintainer.
2568
6a3bceb1
PH
2569PH/02 When an IPv6 address is converted to a string for single-key lookup
2570 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2571 dots are used instead of colons so that keys in lsearch files need not
2572 contain colons. This was done some time before quoting was made available
2573 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2574 (notated using the quote facility) so as to distinguish them from IPv4
2575 keys. This meant that lookups for IP addresses in host lists did not work
2576 for iplsearch lookups.
2577
2578 This has been fixed by arranging for IPv6 addresses to be expressed with
2579 colons if the lookup type is iplsearch. This is not incompatible, because
2580 previously such lookups could never work.
2581
4c04137d 2582 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2583 ordinary lsearch keys. However, making the change in all cases is
2584 incompatible and would probably break a number of configurations.
2585
2e30fa9d
TK
2586TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2587 version.
2588
0806a9c5
MH
2589MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2590 conversion specification without a maximum field width, thereby enabling
2591 a rogue spamd server to cause a buffer overflow. While nobody in their
2592 right mind would setup Exim to query an untrusted spamd server, an
2593 attacker that gains access to a server running spamd could potentially
2594 exploit this vulnerability to run arbitrary code as the Exim user.
2595
ae276964
TK
2596TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2597 $primary_hostname instead of what libspf2 thinks the hosts name is.
2598
0f2cbd1b
MH
2599MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2600 a directory entry by the name of the lookup key. Previously, if a
2601 symlink pointed to a non-existing file or a file in a directory that
2602 Exim lacked permissions to read, a lookup for a key matching that
2603 symlink would fail. Now it is enough that a matching directory entry
2604 exists, symlink or not. (Bugzilla 503.)
2605
2b85bce7
PH
2606PH/03 The body_linecount and body_zerocount variables are now exported in the
2607 local_scan API.
2608
93655c46
PH
2609PH/04 Added the $dnslist_matched variable.
2610
6c512171
PH
2611PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2612 This means they are set thereafter only if the connection becomes
2613 encrypted.
2614
2615PH/06 Added the client_condition to authenticators so that some can be skipped
2616 by clients under certain conditions.
2617
aa6dc513
PH
2618PH/07 The error message for a badly-placed control=no_multiline_responses left
2619 "_responses" off the end of the name.
2620
a96603a0
PH
2621PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2622
8f240103
PH
2623PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2624 (without spaces) instead of just copying the configuration text.
2625
2626PH/10 Added the /noupdate option to the ratelimit ACL condition.
2627
d677b2f2
PH
2628PH/11 Added $max_received_linelength.
2629
d52120f2
PH
2630PH/12 Added +ignore_defer and +include_defer to host lists.
2631
64f2600a
PH
2632PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2633 way in which PCRE > 7.0 is built.
2634
8669f003
PH
2635PH/14 Implemented queue_only_load_latch.
2636
a4dc33a8
PH
2637PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2638 MAIL command. The effect was to mangle the value on 64-bit systems.
2639
d6a60c0f
PH
2640PH/16 Another patch from the Sieve maintainer.
2641
8f128379
PH
2642PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2643
8932dffe
PH
2644PH/18 If a system quota error occurred while trying to create the file for
2645 a maildir delivery, the message "Mailbox is full" was not appended to the
2646 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2647 only to a quota excession during the actual writing of the file.
d6a60c0f 2648
ddea74fa 2649PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2650 characters?) which causes problems in log lines. The DN values are now
2651 passed through string_printing() before being added to log lines.
2652
ddea74fa 2653PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2654 and InterBase are left for another time.)
2655
ddea74fa
PH
2656PH/21 Added message_body_newlines option.
2657
ce9f225c
PH
2658PH/22 Guard against possible overflow in moan_check_errorcopy().
2659
19897d52
PH
2660PH/23 POSIX allows open() to be a macro; guard against that.
2661
bc64a74d
PH
2662PH/24 If the recipient of an error message contained an @ in the local part
2663 (suitably quoted, of course), incorrect values were put in $domain and
2664 $local_part during the evaluation of errors_copy.
2665
eb4c0de6 2666
b4ed4da0
PH
2667Exim version 4.67
2668-----------------
2669
22ad45c9
MH
2670MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2671 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2672 Jan Srzednicki.
2673
b4ed4da0
PH
2674PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2675 issue a MAIL command.
2676
431b7361
PH
2677PH/02 In an ACL statement such as
2678
2679 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2680
2681 if a client was not listed at all, or was listed with a value other than
2682 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2683 the condition was not true (as it should be), so access was not denied.
2684 The bug was that the ! inversion was incorrectly passed on to the second
2685 item. This has been fixed.
2686
2687PH/03 Added additional dnslists conditions == and =& which are different from
2688 = and & when the dns lookup returns more than one IP address.
2689
83da1223
PH
2690PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2691 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2692
54fc8428
PH
2693PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2694 FSYNC, which compiles an option called disable_fsync that allows for
2695 bypassing fsync(). The documentation is heavily laced with warnings.
2696
34c5e8dd
SC
2697SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2698
bbe15da8
PH
2699PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2700 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2701 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2702 including adding "make clean"; (3) Added -fPIC when compiling the test
2703 dynamically loaded module, to get rid of a warning.
2704
0e8a9471
MH
2705MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2706 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2707 = 0s. The bug is otherwise harmless.
2708
f0872424
PH
2709PH/07 There was a bug in the dovecot authenticator such that the value of
2710 $auth1 could be overwritten, and so not correctly preserved, after a
2711 successful authentication. This usually meant that the value preserved by
2712 the server_setid option was incorrect.
2713
b01dd148
PH
2714PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2715
6bf342e1
PH
2716PH/09 Installed PCRE release 7.0.
2717
273f34d0
PH
2718PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2719 run for batched SMTP input. It is now run at the start of every message
2720 in the batch. While fixing this I discovered that the process information
2721 (output by running exiwhat) was not always getting set for -bs and -bS
2722 input. This is fixed, and it now also says "batched" for BSMTP.
2723
cf8b11a5
PH
2724PH/11 Added control=no_pipelining.
2725
41c7c167
PH
2726PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2727 patch, slightly modified), and move the expansion of helo_data till after
2728 the connection is made in the smtp transport (so it can use these
2729 values).
2730
9c57cbc0
PH
2731PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2732
f3f065bb
PH
2733PH/14 Added log_selector = +pid.
2734
047bdd8c
PH
2735PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2736
0ce9abe6
PH
2737PH/16 Add ${if forany and ${if forall.
2738
0e22dfd1
PH
2739PH/17 Added dsn_from option to vary the From: line in DSNs.
2740
4c590bd1
PH
2741PH/18 Flush SMTP output before performing a callout, unless control =
2742 no_callout_flush is set.
2743
09945f1e
PH
2744PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2745 was true (the default) a successful delivery failed to delete the retry
2746 item, thus causing premature timeout of the address. The bug is now
2747 fixed.
2748
c51b8e75
PH
2749PH/20 Added hosts_avoid_pipelining to the smtp transport.
2750
e28326d8 2751PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2752 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2753 other ACL rejections are.
2754
75b1493f
PH
2755PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2756 with slight modification.
2757
7c5214ec
PH
2758PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2759 draft, changing the syntax and factoring some duplicate code".
2760
4311097e
PH
2761PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2762 for deliveries of the second and subsequent messages over the same SMTP
2763 connection.
2764
29f89cad
PH
2765PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2766 ${reduce, with only minor "tidies".
2767
5e687460
SC
2768SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2769
c3611384
PH
2770PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2771 expansion side effects.
2772
5a11a7b4
PH
2773PH/27 When a message times out after an over-quota error from an Exim-imposed
2774 quota, the bounce message says "mailbox is full". This message was not
2775 being given when it was a system quota that was exceeded. It now should
2776 be the same.
2777
0e20aff9
MH
2778MH/03 Made $recipients available in local_scan(). local_scan() already has
2779 better access to the recipient list through recipients_list[], but
2780 $recipients can be useful in postmaster-provided expansion strings.
2781
ca86f471
PH
2782PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2783 in the case of a MAIL command with additional options following the
2784 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2785 were accidentally chopped off.
2786
a14e5636
PH
2787PH/29 SMTP synchronization checks are implemented when a command is read -
2788 there is a check that no more input is waiting when there shouldn't be
2789 any. However, for some commands, a delay in an ACL can mean that it is
2790 some time before the response is written. In this time, more input might
2791 arrive, invalidly. So now there are extra checks after an ACL has run for
2792 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2793 pipelining has not been advertised.
2794
ec95d1a6
PH
2795PH/30 MH's patch to allow iscntrl() characters to be list separators.
2796
42855d71
PH
2797PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2798 returned in the SMTP response when smtp_return_error_details was false.
2799 This has been fixed.
2800
57c2c631
PH
2801PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2802 instead of the C I/O that was originally supplied, because problems were
2803 reported on Solaris.
2804
58c01c94
PH
2805PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2806 Exim which did not show up earlier: it was assuming that a call to
2807 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2808 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2809 was a macro that became an assignment, so it seemed to work. This has
2810 changed to a proper function call with a void return, hence the compile
2811 error. Exim's code has been fixed.
2812
dee5a20a
PH
2813PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2814 cpus.
2815
d2ee6114
PH
2816PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2817
b2d5182b
PH
2818PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2819
79749a79
PH
2820PH/37 If a message is not accepted after it has had an id assigned (e.g.
2821 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2822 "Completed" line in the log. When some messages of this type were
2823 selected by exigrep, they were listed as "not completed". Others were
2824 picked up by some special patterns. I have improved the selection
2825 criteria to be more general.
79749a79 2826
c456d9bb
PH
2827PH/38 The host_find_failed option in the manualroute router can now be set
2828 to "ignore", to completely ignore a host whose IP address cannot be
2829 found. If all hosts are ignored, the behaviour is controlled by the new
2830 host_all_ignored option.
2831
cd9868ec
PH
2832PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2833 homing or because of multiple MX records with /mx) generated more than
2834 one IP address, and the following item turned out to be the local host,
2835 all the secondary addresses of the first item were incorrectly removed
2836 from the list, along with the local host and any following hosts (which
2837 is what is supposed to happen).
2838
ebeaf996
PH
2839PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2840 whoever called Exim into the -H file. In the case of the daemon it was
2841 behaving confusingly. When first started, it used values for whoever
2842 started the daemon, but after a SIGHUP it used the Exim user (because it
2843 calls itself on a restart). I have changed the code so that it now always
2844 uses the Exim user.
2845
2679d413
PH
2846PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2847 message are rejected with the same error (e.g. no authentication or bad
2848 sender address), and a DATA command is nevertheless sent (as can happen
2849 with PIPELINING or a stupid MUA), the error message that was given to the
2850 RCPT commands is included in the rejection of the DATA command. This is
2851 intended to be helpful for MUAs that show only the final error to their
2852 users.
2853
84024b72
PH
2854PH/42 Another patch from the Sieve maintainer.
2855
8005d38e
SC
2856SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2857 Eximstats - Fixed some broken HTML links and added missing column headers
2858 (Jez Hancock).
2859 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2860 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2861
3298c6c6
SC
2862SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2863
a43a27c5
PH
2864PH/43 Yet another patch from the Sieve maintainer.
2865
58eb016e 2866PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2867 the response to the final '.' that terminates a message, but only in the
2868 case where the client has not sent further data following the '.'
2869 (unfortunately, this is allowed). However, in many cases there won't be
2870 any further data because there won't be any more messages to send. A call
2871 to select() can be used: if it shows that the input is "ready", there is
2872 either input waiting, or the socket has been closed. An attempt to read
2873 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2874 would have sent an OK response which the client would never have see.
563b63fa
PH
2875 This could lead to message repetition. This fix should cure that, at
2876 least in a lot of common cases.
58eb016e 2877
b43a74ea
PH
2878PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2879 advertised in response to EHLO.
2880
b4ed4da0 2881
5dd1517f
PH
2882Exim version 4.66
2883-----------------
2884
2885PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2886 fixed by 4.65/MH/01 (is this a record?) are fixed:
2887
2888 (i) An empty string was always treated as zero by the numeric comparison
2889 operators. This behaviour has been restored.
2890
2891 (ii) It is documented that the numeric comparison operators always treat
2892 their arguments as decimal numbers. This was broken in that numbers
2893 starting with 0 were being interpreted as octal.
2894
2895 While fixing these problems I realized that there was another issue that
2896 hadn't been noticed. Values of message_size_limit (both the global option
2897 and the transport option) were treated as octal if they started with 0.
2898 The documentation was vague. These values are now always treated as
2899 decimal, and I will make that clear in the documentation.
2900
2901
93cfa765
TK
2902Exim version 4.65
2903-----------------
2904
2905TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2906 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2907 versions. (#438)
2908
d6066548
MH
2909MH/01 Don't check that the operands of numeric comparison operators are
2910 integers when their expansion is in "skipping" mode (fixes bug
2911 introduced by 4.64-PH/07).
2912
4362ff0d
PH
2913PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2914 child addresses, Exim now panics and dies. Previously, because the count
2915 is held in a short int, deliveries were likely to be lost. As such a
2916 large number of recipients for a single message is ridiculous
2917 (performance will be very, very poor), I have chosen to impose a limit
2918 rather than extend the field.
2919
93cfa765 2920
944e9e9c
TF
2921Exim version 4.64
2922-----------------
aa41d2de 2923
21d74bd9
TK
2924TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2925 leftover -K file (the existence of which was triggered by #402).
2926 While we were at it, introduced process PID as part of the -K
2927 filename. This should rule out race conditions when creating
2928 these files.
2929
2930TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2931 processing considerably. Previous code took too long for large mails,
2932 triggering a timeout which in turn triggers #401.
2933
2934TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2935 in the DK code in transports.c. sendfile() is not really portable,
2936 hence the _LINUX specificness.
944e9e9c
TF
2937
2938TF/01 In the add_headers option to the mail command in an Exim filter,
2939 there was a bug that Exim would claim a syntax error in any
2940 header after the first one which had an odd number of characters
2941 in the field name.
2942
2b1c6e3a
PH
2943PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2944 callout verification, Exim cached a "reject" for the entire domain. This
2945 is correct for most verifications, but it is not correct for a recipient
2946 verification with use_sender or use_postmaster set, because in that case
2947 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2948 case of MAIL FROM:<> rejection from other early rejections (e.g.
2949 rejection of HELO). When verifying a recipient using a non-null MAIL
2950 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2951 Whatever the result of the callout, the value of the domain cache is
2952 left unchanged (for any other kind of callout, getting as far as trying
2953 RCPT means that the domain itself is ok).
2954
1f872c80
PH
2955PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2956 gcc 4.1.1 threw up.
2957
2958PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2959 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2960 session, the daemon ignores ECONNECT errors and logs others; it now
2961 ignores EPIPE as well.
2962
d203e649
PH
2963PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2964 (quoted-printable decoding).
2965
cc2ed8f7 2966PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2967 later the small subsequent patch to fix an introduced bug.
f951fd57 2968
ddfcd446
PH
2969PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2970
d45b1de8
PH
2971PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2972
2973PH/08 An error is now given if message_size_limit is specified negative.
2974
38a0a95f 2975PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2976 to be given (somewhat) arbitrary names.
38a0a95f 2977
a2405d83
JJ
2978JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2979 in 4.64-PH/09.
2980
2981JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2982 miscellaneous code fixes
2983
6ea85e9a
PH
2984PH/10 Added the log_reject_target ACL modifier to specify where to log
2985 rejections.
2986
26da7e20
PH
2987PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2988 hostname. This is wrong, because it relates to the incoming message (and
2989 probably the interface on which it is arriving) and not to the outgoing
2990 callout (which could be using a different interface). This has been
2991 changed to use the value of the helo_data option from the smtp transport
2992 instead - this is what is used when a message is actually being sent. If
2993 there is no remote transport (possible with a router that sets up host
2994 addresses), $smtp_active_hostname is used.
6ea85e9a 2995
14aa5a05 2996PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2997 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2998 (a) The code assumed that strncpy() returns a negative number on buffer
2999 overflow, which isn't the case. Replaced with Exim's string_format()
3000 function.
3001 (b) There were several signed/unsigned issues. I just did the minimum
3002 hacking in of casts. There is scope for a larger refactoring.
3003 (c) The code used strcasecmp() which is not a standard C function.
3004 Replaced with Exim's strcmpic() function.
3005 (d) The code set only $1; it now sets $auth1 as well.
3006 (e) A simple test gave the error "authentication client didn't specify
3007 service in request". It would seem that Dovecot has changed its
3008 interface. Fortunately there's a specification; I followed it and
3009 changed what the client sends and it appears to be working now.
3010
ff75a1f7
PH
3011PH/13 Added $message_headers_raw to provide the headers without RFC 2047
3012 decoding.
3013
e6f6568e
PH
3014PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
3015 address A is aliased to B and C, where B exists and C does not. Without
3016 -v the output is "A verified" because verification stops after a
3017 successful redirection if more than one address is generated. However,
3018 with -v the child addresses are also verified. Exim was outputting "A
3019 failed to verify" and then showing the successful verification for C,
3020 with its parentage. It now outputs "B failed to verify", showing B's
3021 parentage before showing the successful verification of C.
3022
d6f6e0dc
PH
3023PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
3024 look up a TXT record in a specific list after matching in a combined
3025 list.
3026
322050c2
PH
3027PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
3028 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
3029 they consult the DNS. I had assumed they would set it the way they
3030 wanted; and indeed my experiments on Linux seem to show that in some
3031 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
3032 To be on the safe side, however, I have now made the interface to
3033 host_find_byname() similar to host_find_bydns(), with an argument
3034 containing the DNS resolver options. The host_find_byname() function now
3035 sets these options at its start, just as host_find_bydns() does. The smtp
3036 transport options dns_qualify_single and dns_search_parents are passed to
3037 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
3038 of host_find_byname() use the default settings of RES_DEFNAMES
3039 (qualify_single) but not RES_DNSRCH (search_parents).
3040
08955dd3
PH
3041PH/17 Applied (a modified version of) Nico Erfurth's patch to make
3042 spool_read_header() do less string testing, by means of a preliminary
3043 switch on the second character of optional "-foo" lines. (This is
3044 overdue, caused by the large number of possibilities that now exist.
3045 Originally there were few.) While I was there, I also converted the
3046 str(n)cmp tests so they don't re-test the leading "-" and the first
3047 character, in the hope this might squeeze out yet more improvement.
3048
1eccaa59
PH
3049PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3050 flag allowing group syntax was set by the header_syntax check but not
3051 turned off, possible causing trouble later; (2) The flag was not being
3052 set at all for the header_verify test, causing "group"-style headers to
3053 be rejected. I have now set it in this case, and also caused header_
3054 verify to ignore an empty address taken from a group. While doing this, I
3055 came across some other cases where the code for allowing group syntax
3056 while scanning a header line wasn't quite right (mostly, not resetting
3057 the flag correctly in the right place). These bugs could have caused
3058 trouble for malformed header lines. I hope it is now all correct.
3059
602e59e5
PH
3060PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3061 with the "reply" argument non-NULL. The code, however (which originally
3062 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3063 but it didn't always do it. This confused somebody who was copying the
3064 code for some other use. I have removed all the tests.
3065
411ef850
PH
3066PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3067 feature that was used to support insecure browsers during the U.S. crypto
3068 embargo. It requires special client support, and Exim is probably the
3069 only MTA that supported it -- and would never use it because real RSA is
3070 always available. This code has been removed, because it had the bad
3071 effect of slowing Exim down by computing (never used) parameters for the
3072 RSA_EXPORT functionality.
3073
7befa435
PH
3074PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3075 authenticator to fail if there's a tab character in the incoming data
3076 (there should never be unless someone is messing about, as it's supposed
3077 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3078 if the connection is using TLS or if the remote IP is the same as the
3079 local IP, and the "valid-client-cert option" if a client certificate has
3080 been verified.
3081
48da4259 3082PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3083 authenticators. This can be used for authorization after authentication
3084 succeeds. (In the case of plaintext, it servers for both authentication
3085 and authorization.)
3086
48da4259
PH
3087PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3088 if any retry times were supplied.
3089
d1d5595c
PH
3090PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3091 connection, where there is no client IP address to check. In this
3092 situation, the verify now always succeeds.
3093
0ef732d9
PH
3094PH/25 Applied John Jetmore's -Mset patch.
3095
328895cc
PH
3096PH/26 Added -bem to be like -Mset, but loading a message from a file.
3097
fd700877
PH
3098PH/27 In a string expansion for a processed (not raw) header when multiple
3099 headers of the same name were present, leading whitespace was being
3100 removed from all of them, but trailing whitespace was being removed only
3101 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3102 before concatenation. Completely empty headers in a concatenation (as
3103 before) are ignored.
fd700877 3104
8dce1a6f
PH
3105PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3106 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3107
17af4a17
PH
3108PH/29 [Removed. This was a change that I later backed out, and forgot to
3109 correct the ChangeLog entry (that I had efficiently created) before
3110 committing the later change.]
f6c332bd
PH
3111
3112PH/30 Exim was sometimes attempting to deliver messages that had suffered
3113 address errors (4xx response to RCPT) over the same connection as other
3114 messages routed to the same hosts. Such deliveries are always "forced",
3115 so retry times are not inspected. This resulted in far too many retries
3116 for the affected addresses. The effect occurred only when there were more
3117 hosts than the hosts_max_try setting in the smtp transport when it had
3118 the 4xx errors. Those hosts that it had tried were not added to the list
3119 of hosts for which the message was waiting, so if all were tried, there
3120 was no problem. Two fixes have been applied:
3121
3122 (i) If there are any address or message errors in an SMTP delivery, none
3123 of the hosts (tried or untried) are now added to the list of hosts
3124 for which the message is waiting, so the message should not be a
3125 candidate for sending over the same connection that was used for a
3126 successful delivery of some other message. This seems entirely
3127 reasonable: after all the message is NOT "waiting for some host".
3128 This is so "obvious" that I'm not sure why it wasn't done
3129 previously. Hope I haven't missed anything, but it can't do any
3130 harm, as the worst effect is to miss an optimization.
3131
3132 (ii) If, despite (i), such a delivery is accidentally attempted, the
3133 routing retry time is respected, so at least it doesn't keep
3134 hammering the server.
3135
c1114884
PH
3136PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3137 in ${readsocket because some servers need this prod.
3138
7a0743eb
PH
3139PH/32 Added some extra debug output when updating a wait-xxx database.
3140
0d85fa3f
PH
3141PH/33 The hint "could be header name not terminated by colon", which has been
3142 given for certain expansion errors for a long time, was not being given
3143 for the ${if def:h_colon_omitted{... case.
3144
1bf43b78
PH
3145PH/34 The spec says: "With one important exception, whenever a domain list is
3146 being scanned, $domain contains the subject domain." There was at least
3147 one case where this was not true.
3148
520de300
PH
3149PH/35 The error "getsockname() failed: connection reset by peer" was being
3150 written to the panic log as well as the main log, but it isn't really
3151 panic-worthy as it just means the connection died rather early on. I have
3152 removed the panic log writing for the ECONNRESET error when getsockname()
3153 fails.
3154
48c7f9e2
PH
3155PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3156 runs only) independently of the message's sender address. This meant
3157 that, if the 4xx error was in fact related to the sender, a different
3158 message to the same recipient with a different sender could confuse
4c04137d 3159 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3160 server, but other circumstances could also provoke similar problems.
3161 I have changed the default so that the retry time for these errors is now
3162 based a combination of the sender and recipient addresses. This change
3163 can be overridden by setting address_retry_include_sender=false in the
3164 smtp transport.
3165
99ea1c86
PH
3166PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3167 remote server are returned as part of bounce messages. This was not
3168 happening for LMTP over a pipe (the lmtp transport), but now it is the
3169 same for both kinds of LMTP.
3170
a2042e78
PH
3171PH/38 Despite being documented as not happening, Exim was rewriting addresses
3172 in header lines that were in fact CNAMEs. This is no longer the case.
3173
4fbcfc2e
PH
3174PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3175 and queue runs started by the daemon processed all messages. This has
3176 been fixed so that -R and -S can now usefully be given with -q<time>.
3177
aa41d2de
PH
3178PH/40 Import PCRE release 6.7 (fixes some bugs).
3179
af561417
PH
3180PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3181
3cc66b45
PH
3182PH/42 Give an error if -q is specified more than once.
3183
194cc0e4
PH
3184PH/43 Renamed the variables $interface_address and $interface_port as
3185 $received_ip_address and $received_port, to make it clear that these
3186 values apply to message reception, and not to the outgoing interface when
3187 a message is delivered. (The old names remain recognized, of course.)
3188
a401ddaa
PH
3189PH/44 There was no timeout on the connect() call when using a Unix domain
3190 socket in the ${readsocket expansion. There now is.
3191
4e88a19f
PH
3192PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3193 be meaningful with "accept".
3194
d7d7b289
SC
3195SC/01 Eximstats V1.43
3196 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3197
3198SC/02 Eximstats V1.44
3199 Use a glob alias rather than an array ref in the generated
3200 parser. This improves both readability and performance.
3201
3202SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3203 Collect SpamAssassin and rejection statistics.
3204 Don't display local sender or destination tables unless
3205 there is data to show.
3206 Added average volumes into the top table text output.
3207
3208SC/04 Eximstats V1.46
3209 Collect data on the number of addresses (recipients)
3210 as well as the number of messages.
3211
3212SC/05 Eximstats V1.47
3213 Added 'Message too big' to the list of mail rejection
3214 reasons (thanks to Marco Gaiarin).
3215
3216SC/06 Eximstats V1.48
3217 Mainlog lines which have GMT offsets and are too short to
3218 have a flag are now skipped.
3219
3220SC/07 Eximstats V1.49 (Alain Williams)
3221 Added the -emptyok flag.
3222
3223SC/08 Eximstats V1.50
3224 Fixes for obtaining the IP address from reject messages.
3225
0ea2a468
JJ
3226JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3227 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3228 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3229
3230JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3231 match 4.64-PH/13
3232
3233JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3234 are found, allow negative numbers in numeric criteria)
3235
3236JJ/06 exipick.20061117.2, added new $message_body_missing variable
3237
3238JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3239 to match changes made in 4.64-PH/43
3240
8a10f5a4
PH
3241PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3242
30e18802
PH
3243PH/47 Put in an explicit test for a DNS lookup of an address record where the
3244 "domain" is actually an IP address, and force a failure. This locks out
3245 those revolvers/nameservers that support "A-for-A" lookups, in
3246 contravention of the specifications.
3247
55728a4f
PH
3248PH/48 When a host name was looked up from an IP address, and the subsequent
3249 forward lookup of the name timed out, the host name was left in
3250 $sender_host_name, contrary to the specification.
d7d7b289 3251