OpenSSL: clear any leftover errors from the stack after SSL_accept succeeds
[exim.git] / doc / doc-txt / ChangeLog
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495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
d99f54e4
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8Exim version 4.92
9-----------------
10
9723f966
JH
11JH/01 Remove code calling the customisable local_scan function, unless a new
12 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
13
14JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
JH
15 non-signal-safe functions being used.
16
17JH/03 Bug 2269: When presented with a received message having a stupidly large
18 number of DKIM-Signature headers, disable DKIM verification to avoid
19 a resource-consumption attack. The limit is set at twenty.
9723f966 20
ea7b1f16
JH
21JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
22 report of oldest_pass in ${authres } in consequence, and separate out
23 some descriptions of reasons for verification fail.
24
cfbb0d24
JH
25JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
26 files in the spool were present and unlocked. A queue-runner could spot
27 them, resulting in a duplicate delivery. Fix that by doing the unlock
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28 after the unlink. Investigation by Tim Stewart. Take the opportunity to
29 add more error-checking on spoolfile handling while that code is being
cfbb0d24
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30 messed with.
31
85defcf0
PP
32PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
33 No known attacks, no CVE, this is defensive hardening.
34
1bd642c2
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35JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
36 a queue-runner could start a delivery while other operations were ongoing.
37 Cutthrough delivery was a common victim, resulting in duplicate delivery.
38 Found and investigated by Tim Stewart. Fix by using the open message data
39 file handle rather than opening another, and not locally closing it (which
40 releases a lock) for that case, while creating the temporary .eml format
41 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
42
2ddb4094
JH
43JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
44 $sender_verify_failure/$recipient_verify_failure to "random".
45
1613fd68
JH
46JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
47 legitimate.
48
e6057245
JH
49JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
50 Previously this would segfault.
51
7b9822bf
JH
52JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
53 segfault.
54
d8d9f930
JH
55JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
56 like zero, since the resolver should be doing this for us, But we need one
57 as a CNAME but no MX presence gets the CNAME returned; we need to check
58 that doesn't point to an MX to declare it "no MX returned" rather than
59 "error, loop". A new main option is added so the older capability of
60 following some limited number of chain links is maintained.
61
61e3f250
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62JH/12 Add client-ip info to non-pass iprev ${authres } lines.
63
7a8b9519
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64JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
65 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
66 now-deprecated earlier definitions used only specified the range up to TLS
67 1.2 (in the older-version library docs).
68
49e56fb3
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69JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
70
74f1a423
JH
71JH/15 Rework TLS client-side context management. Stop using a global, and
72 explicitly pass a context around. This enables future use of TLS for
73 connections to service-daemons (eg. malware scanning) while a client smtp
74 connection is using TLS; with cutthrough connections this is quite likely.
75
5054c4fd 76JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
JH
77
78JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 79
946515bf
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80JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
81 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
82 Previously the "utf8" would be re-prepended for every additional message.
83
8c34c611
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84JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
85 Previously thery were accepted, resulting in issues when attempting to
86 forward messages to a non-supporting MTA.
87
1bca4f5f
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88PP/02 Let -n work with printing macros too, not just options.
89
8a6b4e02
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90JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
91 one parent address was copied, and bogus data was used at delivery-logging
92 time. Either a crash (after delivery) or bogus log data could result.
93 Discovery and analysis by Tim Stewart.
94
0a682b6c
PP
95PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
96 Previously if the string ended mid-character, we did not insert the
97 promised '?' replacement.
98
c2c451ac
PP
99PP/04 Documentation: current string operators work on bytes, not codepoints.
100
8768d548
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101JH/21 Change as many as possible of the global flags into one-bit bitfields; these
102 should pack well giving a smaller memory footprint so better caching and
103 therefore performance. Group the declarations where this can't be done so
104 that the byte-sized flag variables are not interspersed among pointer
105 variables, giving a better chance of good packing by the compiler.
106
5455f548
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107JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
108 non-null, to avoid issues with sites running BATV. Previously reports were
109 sent with an empty envelope sender so looked like bounces.
110
25beaee4
MK
111JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
112 The ignore_error flag wasn't being returned from the filter subprocess so
113 was not set for later routers. Investigation and fix by Matthias Kurz.
114
7ea1237c 115JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 116 and a msg:complete for the whole, when a message is manually removed using
7ea1237c
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117 -Mrm. Developement by Matthias Kurz, hacked on by JH.
118
ebda598a
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119JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
120 a "Gnu special" function, asprintf() in the DB utility binary builds; I
121 hope that is portable enough.
122
570cb1bd
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123JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
124 requiring a known-CA anchor certificate; make it now rely entirely on the
125 TLSA as an anchor. Checking the name on the leaf cert against the name
126 on the A-record for the host is still done for TA (but not for EE mode).
127
eb58ddf5
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128JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
129 included in delivery lines for non-proxied connections, when compiled with
130 SUPPORT_SOCKS and running with proxy logging enabled.
131
ffbc20ed
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132JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
133 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
134 move the existing event to fire before the normal logging of message
135 failure so that custom logging is bracketed by normal logging.
136
4e928780
MK
137JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
138 msg:fail:internal event. Developement by Matthias Kurz.
139
75c121f0 140JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 141 far too small for todays use of crypto signatures stored there. Go all
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142 the way to the max DNS message size of 64kB, even though this might be
143 overmuch for IOT constrained device use.
144
e30f4f43
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145JH/31 Fix a bad use of a copy function, which could be used to pointlessly
146 copy a string over itself. The library routine is documented as not
147 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
148
a45431fa
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149JH/32 For main options check_spool_space and check_inode_space, where the
150 platform supports 64b integers, support more than the previous 2^31 kB
151 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
152 the previous G, M, k.
153
c0fb53b7
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154JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
155 $authenticated_fail_id variable on authentication failure. Previously
156 it was unset.
157
6aac3239
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158JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
159 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
160 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
161 GNUTLS_SEC_PARAM_MEDIUM.
162
5a2a0989
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163JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
164 side. Previously we would continue as if no SNI had been received.
165
de6f74f2 166JH/36 Harden the handling of string-lists. When a list consisted of a sole
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167 "<" character, which should be a list-separator specification, we walked
168 off past the nul-terimation.
169
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170JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
171 causes) even when the retry time is not yet met. Previously they were
172 not, meaning that when (say) an account was over-quota and temp-rejecting,
173 and multiple senders' messages were queued, only one sender would get
174 notified on each configured delay_warning cycle.
175
aa6e77af 176JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 177
25fa0868
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178JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
179 cipher-suites, an error can be left on the stack even for a succeeding
180 accept; this results in impossible error messages when a later operation
181 actually does fail.
182
9723f966 183
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184Exim version 4.91
185-----------------
459fca58 186
c39c8870 187GF/01 DEFER rather than ERROR on redis cluster MOVED response.
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188 When redis_servers is set to a list of > 1 element, and the Redis servers
189 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
190 case of MOVED into a DEFER case instead, thus moving the query onto the
191 next server in the list. For a cluster of N elements, all N servers must
192 be defined in redis_servers.
c39c8870 193
0800ef83
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194GF/02 Catch and remove uninitialized value warning in exiqsumm
195 Check for existence of @ARGV before looking at $ARGV[0]
196
459fca58
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197JH/01 Replace the store_release() internal interface with store_newblock(),
198 which internalises the check required to safely use the old one, plus
199 the allocate and data copy operations duplicated in both (!) of the
200 extant use locations.
201
944e8b37
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202JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
203 modifier. This matches the restriction on the commandline.
204
bbfb5dcd
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205JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
206 Previously only the last row was returned.
207
a05d3e34
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208JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
209 we assumed that tags in the header were well-formed, and parsed the
210 element content after inspecting only the first char of the tag.
211 Assumptions at that stage could crash the receive process on malformed
212 input.
213
ce93c6d8
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214JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
215 While running the DKIM ACL we operate on the Permanent memory pool so that
216 variables created with "set" persist to the DATA ACL. Also (at any time)
217 DNS lookups that fail create cache records using the Permanent pool. But
218 expansions release any allocations made on the current pool - so a dnsdb
219 lookup expansion done in the DKIM ACL releases the memory used for the
220 DNS negative-cache, and bad things result. Solution is to switch to the
221 Main pool for expansions.
222 While we're in that code, add checks on the DNS cache during store_reset,
223 active in the testsuite.
224 Problem spotted, and debugging aided, by Wolfgang Breyha.
225
2577f55f
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226JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
227 When none of the hosts presented to a transport match an already-open
228 connection, close it and proceed with the list. Previously we would
229 queue the message. Spotted by Lena with Yahoo, probably involving
230 round-robin DNS.
231
5b6f7658
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232JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
233 Previously a spurious "250 OK id=" response was appended to the proper
234 failure response.
235
c11d665d
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236JH/08 The "support for" informational output now, which built with Content
237 Scanning support, has a line for the malware scanner interfaces compiled
238 in. Interface can be individually included or not at build time.
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239
240JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
241 by the template makefile "src/EDITME". The "STREAM" support for an older
242 ClamAV interface method is removed.
c11d665d 243
ba0e37b1
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244JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
245 rows affected is given instead).
246
96508de1
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247JH/11 The runtime Berkeley DB library version is now additionally output by
248 "exim -d -bV". Previously only the compile-time version was shown.
249
06fdb9f7
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250JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
251 SMTP connection. Previously, when one had more receipients than the
252 first, an abortive onward connection was made. Move to full support for
253 multiple onward connections in sequence, handling cutthrough connection
254 for all multi-message initiating connections.
255
f83a760f
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256JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
257 routers. Previously, a multi-recipient message would fail to match the
258 onward-connection opened for the first recipient, and cause its closure.
259
f1fed05b
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260JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
261 a timeout on read on a GnuTLS initiating connection, resulting in the
262 initiating connection being dropped. This mattered most when the callout
263 was marked defer_ok. Fix to keep the two timeout-detection methods
264 separate.
265
051d5efa
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266JH/15 Relax results from ACL control request to enable cutthrough, in
267 unsupported situations, from error to silently (except under debug)
268 ignoring. This covers use with PRDR, frozen messages, queue-only and
269 fake-reject.
270
cf3cd306
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271HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
272
744976d4
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273JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
274 metadata, resulting in a crash in free().
275
aab9a843 276PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 277 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 278 Broken also in d185889f4, with init system revamp.
7be14582 279
83d2a861
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280JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
281 Previously we abruptly closed the connection after reading a malware-
282 found indication; now we go on to read the "scan ok" response line,
283 and send a quit.
284
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285JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
286 ACL. Previously, a crash would result.
287
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288JH/19 Speed up macro lookups during configuration file read, by skipping non-
289 macro text after a replacement (previously it was only once per line) and
290 by skipping builtin macros when searching for an uppercase lead character.
291
c0635b6d
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292JH/20 DANE support moved from Experimental to mainline. The Makefile control
293 for the build is renamed.
294
b808677c
JH
295JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
296 was allocated for every new TLS startup, meaning one per message. Fix
297 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
298
6678c382
JH
299JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
300 reported the original. Fix to report (as far as possible) the ACL
301 result replacing the original.
302
dec766a1
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303JH/23 Fix memory leak during multi-message connections using STARTTLS under
304 OpenSSL. Certificate information is loaded for every new TLS startup,
305 and the resources needed to be freed.
306
15ae19f9
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307JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
308
e6532c4a
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309JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
310 was not propagated.
311
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312JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
313 DATA response info to the (existing) per-recipient response info for
314 the "C=" log element. It can have useful tracking info from the
315 destination system. Patch from Simon Arlott.
316
fc8cd529
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317JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
318 length value. Previously this would segfault.
319
71bb51e0
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320HS/02 Support Avast multiline protoocol, this allows passing flags to
321 newer versions of the scanner.
322
e04bfa34
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323JH/28 Ensure that variables possibly set during message acceptance are marked
324 dead before release of memory in the daemon loop. This stops complaints
325 about them when the debug_store option is enabled. Discovered specifically
326 for sender_rate_period, but applies to a whole set of variables.
c232fc99
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327 Do the same for the queue-runner and queue-list loops, for variables set
328 from spool message files. Do the same for the SMTP per-message loop, for
329 certain variables indirectly set in ACL operations.
e04bfa34 330
ecce6d9a
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331JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
332 as a multi-recipient message from a mailinglist manager). The coding had
333 an arbitrary cutoff number of characters while checking for more input;
334 enforced by writing a NUL into the buffer. This corrupted long / fast
335 input. The problem was exposed more widely when more pipelineing of SMTP
336 responses was introduced, and one Exim system was feeding another.
337 The symptom is log complaints of SMTP syntax error (NUL chars) on the
338 receiving system, and refused recipients seen by the sending system
339 (propating to people being dropped from mailing lists).
340 Discovered and pinpointed by David Carter.
341
c9cf9ac4
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342JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
343 replaced by the ${authresults } expansion.
344
b3b37076
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345JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
346
830832c9
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347HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
348 allows proper process termination in container environments.
349
f64e8b5f
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350JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
351 Previously the "final dot" had a newline after it; ensure it is CR,LF.
352
8f0776b5
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353JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
354 and "err_perm", deprecated since 4.83 when the RFC-defined words
355 "temperror" and "permerror" were introduced.
356
857eaf37
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357JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
358 transport-filters or DKIM-signing. The restriction was lost in the
359 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 360 Extend the restriction to also cover ARC-signing.
857eaf37 361
c85476e9
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362JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
363 in defer=pass mode supply a 450 to the initiator. Previously the message
364 would be spooled.
365
405074ad
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366PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
367 tls_require_ciphers is used as before.
368
eb445b04
HSHR
369HS/03 Malware Avast: Better match the Avast multiline protocol. Add
370 "pass_unscanned". Only tmpfails from the scanner are written to
371 the paniclog, as they may require admin intervention (permission
372 denied, license issues). Other scanner errors (like decompression
373 bombs) do not cause a paniclog entry.
ad93c40f 374
d342446f
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375JH/36 Fix reinitialisation of DKIM logging variable between messages.
376 Previously it was possible to log spurious information in receive log
377 lines.
378
a28050f8
JH
379JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
380 triggered odd behaviour from Outlook Express clients.
381
ddd16464
PP
382PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
383 suffix list.
384
321ef002
JH
385JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
386 since the IETF WG has not yet settled on that versus the original
387 "bare" representation.
388
3203e7ba
JH
389JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
390 Previously the millisecond value corrupted the output.
391 Fix also for syslog_pid=no and log_selector +pid, for which the pid
392 corrupted the output.
393
bbfb5dcd 394
acfc18c3
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395Exim version 4.90
396-----------------
397
398JH/01 Rework error string handling in TLS interface so that the caller in
399 more cases is responsible for logging. This permits library-sourced
400 string to be attached to addresses during delivery, and collapses
401 pairs of long lines into single ones.
402
856d1e16
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403PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
404 during configuration. Wildcards are allowed and expanded.
405
b9df1829
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406JH/02 Rework error string handling in DKIM to pass more info back to callers.
407 This permits better logging.
408
875512a3
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409JH/03 Rework the transport continued-connection mechanism: when TLS is active,
410 do not close it down and have the child transport start it up again on
411 the passed-on TCP connection. Instead, proxy the child (and any
412 subsequent ones) for TLS via a unix-domain socket channel. Logging is
413 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 414 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 415
fc3f96af
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416JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
417 identical IP addresses on different listening ports. Will also affect
418 "exiwhat" output.
419
98913c8e
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420PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
421 add noisy ifdef guards to special-case this sillyness.
422 Patch from Bernd Kuhls.
423
8d909960
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424JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
425 than 255 are no longer allowed.
426
7006ee24
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427JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
428 Disable the session-cache too, which might reduce our load. Since we
429 currrectly use a new context for every connection, both as server and
430 client, there is no benefit for these.
431 GnuTLS appears to not support tickets server-side by default (we don't
432 call gnutls_session_ticket_enable_server()) but client side is enabled
433 by default on recent versions (3.1.3 +) unless the PFS priority string
434 is used (3.2.4 +).
435
6e411084
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436PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
437 <https://reproducible-builds.org/specs/source-date-epoch/>.
438
4c2471ca
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439JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
440 the check for any unsuccessful recipients did not notice the limit, and
441 erroneously found still-pending ones.
442
4e910c01
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443JH/08 Pipeline CHUNKING command and data together, on kernels that support
444 MSG_MORE. Only in-clear (not on TLS connections).
445
42055a33
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446JH/09 Avoid using a temporary file during transport using dkim. Unless a
447 transport-filter is involved we can buffer the headers in memory for
448 creating the signature, and read the spool data file once for the
449 signature and again for transmission.
450
eeb35890
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451JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
452 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 453 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 454
b7d3afcf
JH
455JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
456 case where the routing stage had gathered several addresses to send to
457 a host before calling the transport for the first, we previously failed
458 to close down TLS in the old transport process before passing the TCP
459 connection to the new process. The new one sent a STARTTLS command
460 which naturally failed, giving a failed delivery and bloating the retry
461 database. Investigation and fix prototype from Wolfgang Breyha.
462
40525d07
JH
463JH/12 Fix check on SMTP command input synchronisation. Previously there were
464 false-negatives in the check that the sender had not preempted a response
465 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 466 awareness of the SMTP input buffering.
40525d07 467
f33875c3
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468PP/04 Add commandline_checks_require_admin option.
469 Exim drops privileges sanely, various checks such as -be aren't a
470 security problem, as long as you trust local users with access to their
471 own account. When invoked by services which pass untrusted data to
472 Exim, this might be an issue. Set this option in main configuration
473 AND make fixes to the calling application, such as using `--` to stop
474 processing options.
475
a5ffa9b4
JH
476JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
477 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
478 responses to those, into a single TLS record each way (this usually means
479 a single packet). As a side issue, smtp_enforce_sync now works on TLS
480 connections.
925ac8e4 481
6600985a
PP
482PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
483 affects you only if you're dancing at the edge of the param size limits.
484 If you are, and this message makes sense to you, then: raise the
485 configured limit or use OpenSSL 1.1. Nothing we can do for older
486 versions.
487
ac4d558b
JH
488JH/14 For the "sock" variant of the malware scanner interface, accept an empty
489 cmdline element to get the documented default one. Previously it was
490 inaccessible.
491
e69636bc
JH
492JH/15 Fix a crash in the smtp transport caused when two hosts in succession
493 are unsuable for non-message-specific reasons - eg. connection timeout,
494 banner-time rejection.
495
a843a57e
JH
496JH/16 Fix logging of delivery remote port, when specified by router, under
497 callout/hold.
498
8e041ae0
PP
499PP/06 Repair manualroute's ability to take options in any order, even if one
500 is the name of a transport.
833c70bc
PP
501 Fixes bug 2140.
502
35a04365
HSHR
503HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
504
4226691b
JH
505JH/17 Change the list-building routines interface to use the expanding-string
506 triplet model, for better allocation and copying behaviour.
507
d185889f
JH
508JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
509 Previously it was constructed the first time a possibly-matching string
510 was met in the configuration file input during startup; now it is done
511 during compilation.
512
0a6c178c
JH
513JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
514 compatible one, to avoid the (poorly documented) possibility of a config
515 file in the working directory redirecting the DB files, possibly correpting
02745400 516 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 517
fae8970d
JH
518JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
519 cache-hot. Previously, although the result was properly cached, the
520 initial verify call returned a defer.
521
ad1a76fe 522JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
523 the main verify for receipient in uncached-mode.
524
ad1a76fe
JH
525JH/22 Retire historical build files to an "unsupported" subdir. These are
526 defined as "ones for which we have no current evidence of testing".
527
135e9496
JH
528JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
529 if present. Previously it was ignored.
530
f2ed27cf
JH
531JH/24 Start using specified-initialisers in C structure init coding. This is
532 a C99 feature (it's 2017, so now considered safe).
533
7eb0e5d2
JH
534JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
535 if was a fixed-sized field and bitmask ops via macros; it is now more
536 extensible.
537
4f9f4be4
538PP/07 GitHub PR 56: Apply MariaDB build fix.
539 Patch provided by Jaroslav Škarvada.
540
dc4de9cc
PP
541PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
542 during Coverity cleanups [4.87 JH/47]
543 Diagnosis and fix provided by Michael Fischer v. Mollard.
544
ea18931d
JH
545JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
546 the right size to place the terminating semicolon on its own folded
547 line, the header hash was calculated to an incorrect value thanks to
548 the (relaxed) space the fold became.
549
0768462d 550HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
551 and confused the parent.
552
848214f7
JH
553JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
554 which could crash as a result. This could lead to undeliverable messages.
555
9e0ed81f
JH
556JH/28 Logging: "next input sent too soon" now shows where input was truncated
557 for log purposes.
558
2540f2f8
JH
559JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
560 matters on fast-turnover and PID-randomising systems, which were getting
561 out-of-order delivery.
562
e5ab0ba9
JH
563JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
564 a possibly-overlapping copy. The symptom was that "Remote host closed
565 connection in response to HELO" was logged instead of the actual 4xx
566 error for the HELO.
567
e99a3a6c
JH
568JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
569 Previously only that bufferd was discarded, resulting in SYMTP command
570 desynchronisation.
571
18067c75
JH
572JH/32 DKIM: when a message has multiple signatures matching an identity given
573 in dkim_verify_signers, run the dkim acl once for each. Previously only
574 one run was done. Bug 2189.
575
72934ba7
JH
576JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
577 "panic the current process" to "deliberately defer". The panic log is
578 still written with the problem list name; the mail and reject logs now
579 get a temp-reject line for the message that was being handled, saying
580 something like "domains check lookup or other defer". The SMTP 451
581 message is still "Temporary local problem".
582
625667b6
JH
583JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
584 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
585 freed. CVE-2017-16943.
586
587HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
588 from SMTP input. Previously it was always done; now only done for DATA
589 and not BDAT commands. CVE-2017-16944.
625667b6 590
d21bf202
JH
591JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
592 to the message (such as an overlong header line). Previously this was
593 not done and we did not exit BDAT mode. Followon from the previous item
594 though a different problem.
595
acfc18c3 596
fd047340 597Exim version 4.89
acfc18c3 598-----------------
4c57a40e 599
9427e879 600JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 601 than -2003 did; needs libidn2 in addition to libidn.
fd047340 602
7b283890
JH
603JH/02 The path option on a pipe transport is now expanded before use.
604
4c57a40e
PP
605PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
606 Patch provided by "Björn", documentation fix added too.
607
5d036699
JH
608JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
609 missing a wire-to-host endian conversion.
610
f4630439
JH
611JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
612 close after a BDAT command line could be taken as a following command,
613 giving a synch failure. Fix by only checking for synch immediately
614 before acknowledging the chunk.
615
f988ce57
JS
616PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
617 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
618 macro. Patches provided by Josh Soref.
619
bd8fbe36
JH
620JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
621 Previously we did not; the RFC seems ambiguous and VRFY is not listed
622 by IANA as a service extension. However, John Klensin suggests that we
623 should.
624
625JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
626 the dkim code may be unix-mode line endings rather than smtp wire-format
627 CRLF, so prepend a CR to any bare LF.
fd047340 628
bd8fbe36 629JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
630 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
631
bd8fbe36
JH
632JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
633 the first were themselves being wrongly included in the feed into dkim
634 processing; with most chunk sizes in use this resulted in an incorrect
635 body hash calculated value.
636
eea19017
JH
637JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
638 DKIM signature block, for verification. Although advised against by
639 standards it is specifically not ruled illegal.
640
44e6651b
JH
641JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
642
643JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
644 missing a body hash (the bh= tag).
645
646JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
647 It seems that HAProxy sends the Proxy Protocol information in clear and
648 only then does a TLS startup, so do the same.
649
650JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
651 TCP connections (such as for Spamd) unless the daemon successfully set
652 Fast Open mode on its listening sockets. This fixes breakage seen on
653 too-old kernels or those not configured for Fast Open, at the cost of
654 requiring both directions being enabled for TFO, and TFO never being used
655 by non-daemon-related Exim processes.
656
657JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
658 endings, at least on the first header line. Try to canonify any that get
659 past that check, despite the cost.
660
b6040544
JH
661JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
662 now limited to an arbitrary five deep, while parsing addresses with the
663 strip_excess_angle_brackets option enabled.
664
f700ea4d
PP
665PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
666 instead leave the unprompted TLS handshake in socket buffer for the
667 TLS library to consume.
668
da88acae
PP
669PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
670
f6ef9370
PP
671PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
672
90341c71
JH
673JH/16 Drop variables when they go out of scope. Memory management drops a whole
674 region in one operation, for speed, and this leaves assigned pointers
675 dangling. Add checks run only under the testsuite which checks all
676 variables at a store-reset and panics on a dangling pointer; add code
677 explicitly nulling out all the variables discovered. Fixes one known
678 bug: a transport crash, where a dangling pointer for $sending_ip_address
679 originally assigned in a verify callout, is re-used.
680
1ec2ab36
PP
681PP/06 Drop '.' from @INC in various Perl scripts.
682
683PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
684
685PP/08 Reduce a number of compilation warnings under clang; building with
686 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
687 should be warning-free.
688
8b2b9480
PP
689JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
690
691HS/01 Fix portability problems introduced by PP/08 for platforms where
692 realloc(NULL) is not equivalent to malloc() [SunOS et al].
693
d953610f
HSHR
694HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
695 chunk. This allows us to accept broken chunked messages. We need a more
696 general solution here.
697
7dc5f827
PP
698PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
699 already-broken messages in the queue.
700
4bb432cb
PP
701JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
702
3b1a84c8
PP
703JH/19 Fix reference counting bug in routing-generated-address tracking.
704
902fbd69 705
8d042305
JH
706Exim version 4.88
707-----------------
4c57a40e 708
9094b84b
JH
709JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
710 supports it and a size is available (ie. the sending peer gave us one).
8d042305 711
03d5892b
JH
712JH/02 The obsolete acl condition "demime" is removed (finally, after ten
713 years of being deprecated). The replacements are the ACLs
714 acl_smtp_mime and acl_not_smtp_mime.
715
4b0fe319
JH
716JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
717 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
718 or even an in-clear connection were permitted. Now, if the host lookup
719 was dnssec and dane was requested then the host is only used if the
720 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
721 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
722 if one fails this test.
723 This means that a poorly-configured remote DNS will make it incommunicado;
724 but it protects against a DNS-interception attack on it.
725
789f8a4f
JH
726JH/04 Bug 1810: make continued-use of an open smtp transport connection
727 non-noisy when a race steals the message being considered.
728
23bb6982 729JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 730 self-signed certificate for inbound TLS connections.
23bb6982 731
0bd1b1ed 732JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 733 in rewrites and routers.
0bd1b1ed 734
20b9a2dc
JH
735JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
736 and logged a warning sing 4.83; now they are a configuration file error.
737
05392bbc
JH
738JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
739 (lacking @domain). Apply the same qualification processing as RCPT.
740
1a6230a3
JH
741JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
742
cfab9d68
JH
743JH/10 Support ${sha256:} applied to a string (as well as the previous
744 certificate).
745
98c82a3d
JH
746JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
747 a cutthrough deliver is pending, as we always want to make a connection.
748 This also avoids re-routing the message when later placing the cutthrough
749 connection after a verify cache hit.
750 Do not update it with the verify result either.
751
752JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
753 when routing results in more than one destination address.
754
ae8386f0
JH
755JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
756 signing (which inhibits the cutthrough capability). Previously only
757 the presence of an option was tested; now an expansion evaluating as
758 empty is permissible (obviously it should depend only on data available
759 when the cutthrough connection is made).
760
0d9fa8c0
JH
761JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
762 the relevant preceding SMTP command did not note the pipelining mode.
763
3581f321
JH
764JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
765 Previously they were not counted.
766
ef3a1a30
JH
767JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
768 as one having no matching records. Previously we deferred the message
769 that needed the lookup.
770
4c04137d 771JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
772 distinguished as "(=".
773
1435d4b2
JH
774JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
775 for missing MX records. Previously it only worked for missing A records.
776
eea0defe
JB
777JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
778
779JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
780 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 781
4c04137d 782JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
783 even for a "none" policy. Patch from Tony Meyer.
784
1c788856
JH
785JH/22 Fix continued use of a connection for further deliveries. If a port was
786 specified by a router, it must also match for the delivery to be
787 compatible.
788
e3b1f624
JH
789JH/23 Bug 1874: fix continued use of a connection for further deliveries.
790 When one of the recipients of a message was unsuitable for the connection
791 (has no matching addresses), we lost track of needing to mark it
792 deferred. As a result mail would be lost.
793
a57ce043
JH
794JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
795
f59aaaaa 796JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
797 takes up less space and should be simpler to maintain. Merge the ACL
798 condition decode tables also, with similar effect.
d7bed771 799
d1f9fb42
JH
800JH/26 Fix problem with one_time used on a redirect router which returned the
801 parent address unchanged. A retry would see the parent address marked as
802 delivered, so not attempt the (identical) child. As a result mail would
803 be lost.
804
92b0827a
JH
805JH/27 Fix a possible security hole, wherein a process operating with the Exim
806 UID can gain a root shell. Credit to http://www.halfdog.net/ for
807 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
808 itself :(
809
ddf1b11a
JH
810JH/28 Enable {spool,log} filesystem space and inode checks as default.
811 Main config options check_{log,spool}_{inodes,space} are now
812 100 inodes, 10MB unless set otherwise in the configuration.
813
3cc3f762
JH
814JH/29 Fix the connection_reject log selector to apply to the connect ACL.
815 Previously it only applied to the main-section connection policy
816 options.
817
ae5afa61
JH
818JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
819
317e40ac
PP
820PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
821 by me. Added RFC7919 DH primes as an alternative.
822
8b0fb68e
PP
823PP/02 Unbreak build via pkg-config with new hash support when crypto headers
824 are not in the system include path.
825
ad7fc6eb 826JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 827 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
828 Exim did stdio operations after fclose. This was exposed by a recent
829 change which nulled out the file handle after the fclose.
ad7fc6eb 830
ee5b1e28
JH
831JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
832 signed directly by the cert-signing cert, rather than an intermediate
833 OCSP-signing cert. This is the model used by LetsEncrypt.
834
5ddc9771
JH
835JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
836
8d73599f
JH
837HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
838 an incoming connection.
839
446415f5
HSHR
840HS/02 Bug 1802: Do not half-close the connection after sending a request
841 to rspamd.
842
8e53a4fc
HSHR
843HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
844 fallback to "prime256v1".
8d042305 845
87cb4a16 846JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 847 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
848
849
0d9b78be
JH
850Exim version 4.87
851-----------------
4c57a40e 852
82d14d6a
JH
853JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
854 and 3.4.4 - once the server is enabled to respond to an OCSP request
855 it does even when not requested, resulting in a stapling non-aware
856 client dropping the TLS connection.
0d9b78be 857
6c6d6e48
TF
858TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
859 support variable-length bit vectors. No functional change.
860
ac881e27
TF
861TF/02 Improve the consistency of logging incoming and outgoing interfaces.
862 The I= interface field on outgoing lines is now after the H= remote
863 host field, same as incoming lines. There is a separate
864 outgoing_interface log selector which allows you to disable the
865 outgoing I= field.
866
c8899c20
JH
867JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
868 If not running log_selector +smtp_connection the mainlog would be held
869 open indefinitely after a "too many connections" event, including to a
870 deleted file after a log rotate. Leave the per net connection logging
871 leaving it open for efficiency as that will be quickly detected by the
872 check on the next write.
873
f1b81d81
HSHR
874HS/01 Bug 1671: Fix post transport crash.
875 Processing the wait-<transport> messages could crash the delivery
876 process if the message IDs didn't exist for some reason. When
877 using 'split_spool_directory=yes' the construction of the spool
878 file name failed already, exposing the same netto behaviour.
879
f38917cc
JH
880JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
881 mime_regex ACL conditions.
882
895fbaf2
JH
883JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
884 to DSN fail messages (bounces): remote IP, remote greeting, remote response
885 to HELO, local diagnostic string.
886
805bb5c3
JH
887JH/05 Downgrade message for a TLS-certificate-based authentication fail from
888 log line to debug. Even when configured with a tls authenticator many
889 client connections are expected to not authenticate in this way, so
890 an authenticate fail is not an error.
891
56c2a7be
HSHR
892HS/02 Add the Exim version string to the process info. This way exiwhat
893 gives some more detail about the running daemon.
894
4c04137d 895JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
896 matter for fast-change records such as DNSBLs.
897
6f6dedcc
JH
898JH/07 Bug 1678: Always record an interface option value, if set, as part of a
899 retry record, even if constant. There may be multiple transports with
900 different interface settings and the retry behaviour needs to be kept
901 distinct.
902
0f557e90
JH
903JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
904
905JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
906
ec0eb1a3
JH
907JH/10 Bug 840: fix log_defer_output option of pipe transport
908
41e93589
JH
909JH/11 Bug 830: use same host for all RCPTS of a message, even under
910 hosts_randomize. This matters a lot when combined with mua_wrapper.
911
98b98887 912JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
913 ${quote_pgsql:<string>} operator.
914
98b98887
JH
915JH/13 Bug 1708: avoid misaligned access in cached lookup.
916
858e91c2
JH
917JH/14 Change header file name for freeradius-client. Relevant if compiling
918 with Radius support; from the Gentoo tree and checked under Fedora.
919
920JH/15 Bug 1712: Introduce $prdr_requested flag variable
921
6ff55e50
JH
922JH/16 Bug 1714: Permit an empty string as expansion result for transport
923 option transport_filter, meaning no filtering.
924
3b957582
JB
925JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
926
23f3dc67
JH
927JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
928 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 929 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
930 If a server certificate is not supplied (via tls_certificate) an error is
931 logged, and clients will find TLS connections fail on startup. Presumably
932 they will retry in-clear.
933 Packagers of Exim are strongly encouraged to create a server certificate
934 at installation time.
935
240c288f
JH
936HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
937 with the $config_file variable.
938
5ef5dd52
JB
939JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
940 in transport context, after the attempt, and per-recipient. The latter type
941 is per host attempted. The event data is the error message, and the errno
942 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 943 and the trailing two digits of the smtp 4xx response.
5ef5dd52 944
e161710d
GF
945GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
946 to write to mainlog (or rejectlog, paniclog) in the window between file
947 creation and permissions/ownership being changed. Particularly affects
948 installations where exicyclog is run as root, rather than exim user;
949 result is that the running daemon panics and dies.
950
a159f203
JH
951JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
952
7f06582c
JH
953JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
954 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
955 "pri" and "weight". Note that the previous implicit priority given by the
956 list order is no longer honoured.
957
4c04137d 958JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
959 for DKIM processing.
960
f0989ec0
JH
961JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
962 by defining SUPPORT_SOCKS.
74f150bf 963
cee5f132
JH
964JH/26 Move PROXY support from Experimental to mainline, enabled for a build
965 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
966 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
967 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 968
8c5d388a
JH
969JH/27 Move Internationalisation support from Experimental to mainline, enabled
970 for a build by defining SUPPORT_I18N
971
2d8d625b
JH
972JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
973 of the query string, and make ${quote_redis:} do that quoting.
974
0cbf2b82
JH
975JH/29 Move Events support from Experimental to mainline, enabled by default
976 and removable for a build by defining DISABLE_EVENT.
977
f2f2c91b
JH
978JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
979
ce325893
JH
980JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
981 cached by the daemon.
982
de78e2d5
JH
983JH/32 Move Redis support from Experimental to mainline, enabled for a build
984 by defining LOOKUP_REDIS. The libhiredis library is required.
985
379ba7d0
JH
986JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
987 keys are given for lookup.
988
f444c2c7
JH
989JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
990 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
991 only supported when built with TLS support. The PolarSSL SHA routines
992 are still used when the TLS library is too old for convenient support.
f444c2c7 993
a57b6200
JH
994JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
995 openssl_options), for security. OpenSSL forces this from version 1.1.0
996 server-side so match that on older versions.
997
07c73177 998JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 999 allocation for $value could be released as the expansion processing
07c73177 1000 concluded, but leaving the global pointer active for it.
fa01e4f8 1001
4f6ae5c3
JH
1002JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1003 and to use the domains and local_parts ACL conditions.
1004
1bc460a6
JH
1005JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1006 incorrectly not doubled on cutthrough transmission, hence seen as a
1007 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1008 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1009 via the normal store-and-forward channel. This could result in duplicates
1010 received - but deduplicating mailstores were liable to retain only the
1011 initial truncated version.
1012
ab9152ff 1013JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1014
67e87fcf
JH
1015JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1016
ab9152ff
JH
1017JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1018 we're in there, support oversigning also; bug 1309.
1019
af483912
JH
1020JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1021
bc3c7bb7 1022HS/04 Add support for keep_environment and add_environment options.
df3def24 1023
13559da6
JH
1024JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1025 either intentional arithmetic overflow during PRNG, or testing config-
1026 induced overflows.
1027
59eaad2b
JH
1028JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1029 delivery resulted in actual delivery. Cancel cutthrough before DATA
1030 stage.
1031
f9334a28
JH
1032JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1033 rejects a recipient: pass the reject to the originator.
1034
dc8091e7
JH
1035JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1036 Many were false-positives and ignorable, but it's worth fixing the
1037 former class.
1038
dfe7d917
JH
1039JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1040 for the new environment-manipulation done at startup. Move the routines
1041 from being local to tls.c to being global via the os.c file.
1042
93cc2d6e
JH
1043JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1044 an extract embedded as result-arg for a map, the first arg for extract
1045 is unavailable so we cannot tell if this is a numbered or keyed
1046 extraction. Accept either.
1047
13559da6 1048
9c695f6d
JH
1049Exim version 4.86
1050-----------------
4c57a40e 1051
9c695f6d
JH
1052JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1053 expanded.
1054
506900af
JH
1055JH/02 The smtp transport option "multi_domain" is now expanded.
1056
ad07e9ad
JH
1057JH/03 The smtp transport now requests PRDR by default, if the server offers
1058 it.
1059
01a4a5c5 1060JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1061 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1062 can be used to disable this per-host. The build option
1063 EXPERIMENTAL_CERTNAMES is withdrawn.
1064
cb1d7830 1065JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1066 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1067 For GnuTLS, only version 3.0.20 or later.
1068
610ff438 1069JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1070 (but not required) by default. The verification status is now logged by
1071 default, for both outbound TLS and client-certificate supplying inbound
1072 TLS connections
610ff438 1073
f926e272
JH
1074JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1075 sites use this now.
1076
50dc7409
JH
1077JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1078 Status Notification (bounce) messages are now MIME format per RFC 3464.
1079 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1080 under the control of the dsn_advertise_hosts option, and routers may
1081 have a dsn_lasthop option.
1082
0f0c8159
JH
1083JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1084 default, modifiable by a malware= option. The list separator for
23763898 1085 the options can now be changed in the usual way. Bug 68.
4e71661f 1086
1ad6489e
JH
1087JH/10 The smtp_receive_timeout main option is now expanded before use.
1088
aeaf5db3
JH
1089JH/11 The incoming_interface log option now also enables logging of the
1090 local interface on delivery outgoing connections.
1091
5032d1cf
JH
1092JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1093 if the interface and destination host and port all match.
1094
7e8360e6
JH
1095JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1096 /defer_ok option.
1097
c5f280e2
AL
1098JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1099 Patch from Andrew Lewis.
1100
fd4d8871 1101JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1102 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1103 modifiers per server. Patch originally by <rommer@active.by>.
1104
1105JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1106 and remote servers. Remote servers can be IPv6 addresses, and
1107 specify a port-range.
fd4d8871 1108
23763898
JH
1109JH/17 Bug 68: The spamd_address main option now supports an optional
1110 timeout value per server.
1111
2ad78978
JH
1112JH/18 Bug 1581: Router and transport options headers_add/remove can
1113 now have the list separator specified.
1114
8a512ed5 1115JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1116 option values.
8a512ed5 1117
82c0c8ea 1118JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1119 under OpenSSL.
1120
cc00f4af
JH
1121JH/21 Support for the A6 type of dns record is withdrawn.
1122
82c0c8ea
JH
1123JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1124 rather than the verbs used.
1125
b980ed83
JH
1126JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1127 from 255 to 1024 chars.
1128
6c9ed72e
JH
1129JH/24 Verification callouts now attempt to use TLS by default.
1130
cfab9d68 1131HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1132 are generic router options now. The defaults didn't change.
50dc7409 1133
f846c8f5
JH
1134JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1135 Original patch from Alexander Shikoff, worked over by JH.
1136
fd4c285c
HSHR
1137HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1138 files if ZCAT_COMMAND is not executable.
1139
4c04137d 1140JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1141
d2a2c69b
JH
1142JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1143
8241d8dd
JH
1144JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1145 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1146 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1147 (and we were inconsistent anyway for A-only vs AAAA+A).
1148
1f12df4d
JH
1149JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1150
1f155f8e
JH
1151JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1152 when evaluating $sender_host_dnssec.
1153
1705dd20
JH
1154JH/31 Check the HELO verification lookup for DNSSEC, adding new
1155 $sender_helo_dnssec variable.
1156
038597d2
PP
1157JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1158
474f71bf
JH
1159JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1160
7137ca4b
JH
1161JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1162
dcb1095c
JH
1163JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1164 documented as working, but never had. Support all but $spam_report.
1165
2f460950
JH
1166JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1167 added for tls authenticator.
1168
2f680c0c
HSHR
1169HS/03 Add perl_taintmode main config option
1170
9c695f6d 1171
e449c3b0
TL
1172Exim version 4.85
1173-----------------
4c57a40e 1174
e449c3b0
TL
1175TL/01 When running the test suite, the README says that variables such as
1176 no_msglog_check are global and can be placed anywhere in a specific
1177 test's script, however it was observed that placement needed to be near
1178 the beginning for it to behave that way. Changed the runtest perl
1179 script to read through the entire script once to detect and set these
1180 variables, reset to the beginning of the script, and then run through
1181 the script parsing/test process like normal.
1182
ac20058f
TL
1183TL/02 The BSD's have an arc4random API. One of the functions to induce
1184 adding randomness was arc4random_stir(), but it has been removed in
1185 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1186 function when detected.
1187
a9b8ec8b
JH
1188JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1189 cause callback expansion.
1190
6286d7c4
TL
1191TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1192 syntax errors in an expansion can be treated as a string instead of
1193 logging or causing an error, due to the internal use of bool_lax
1194 instead of bool when processing it.
1195
0f06b4f2 1196JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1197 server certificates when making smtp deliveries.
1198
be36e572
JH
1199JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1200
ac4ef9bd
JH
1201JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1202
0eb51736
TL
1203TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1204
c713ca4b
TL
1205TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1206 Merged patch from Sebastian Wiedenroth.
e449c3b0 1207
bd21a787
WB
1208JH/05 Fix results-pipe from transport process. Several recipients, combined
1209 with certificate use, exposed issues where response data items split
1210 over buffer boundaries were not parsed properly. This eventually
1211 resulted in duplicates being sent. This issue only became common enough
4c04137d 1212 to notice due to the introduction of connection certificate information,
bd21a787
WB
1213 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1214
8bc732e8
JH
1215JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1216 size buffer was used, resulting in syntax errors when an expansion
1217 exceeded it.
1218
a7fec7a7
JH
1219JH/07 Add support for directories of certificates when compiled with a GnuTLS
1220 version 3.3.6 or later.
1221
4c04137d 1222JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1223 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1224 both become "event_action", the variables become $event_name, $event_data
aec45841 1225 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1226 routers, transports and related events. The tls:cert event is now also
1227 raised for inbound connections, if the main configuration event_action
1228 option is defined.
774ef2d7 1229
eca4debb
TL
1230TL/06 In test suite, disable OCSP for old versions of openssl which contained
1231 early OCSP support, but no stapling (appears to be less than 1.0.0).
1232
8d692470
JH
1233JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1234 server certificate names available under the smtp transport option
1235 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1236 matches.
1237
e9477a08
JH
1238JH/10 Time-related extraction expansions from certificates now use the main
1239 option "timezone" setting for output formatting, and are consistent
1240 between OpenSSL and GnuTLS compilations. Bug 1541.
1241
ad4c5ff9
JH
1242JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1243 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1244
1245JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1246 include certificate info, eximon was claiming there were spoolfile
1247 syntax errors.
1248
3394b36a 1249JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1250
1251JH/14 Log delivery-related information more consistently, using the sequence
1252 "H=<name> [<ip>]" wherever possible.
1253
3394b36a
TL
1254TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1255 are problematic for Debian distribution, omit them from the release
1256 tarball.
1257
ad4c5ff9
JH
1258JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1259
4c04137d 1260JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1261 Bug 1561.
1262
1263JH/17 Fix a null-indirection in certextract expansions when a nondefault
1264 output list separator was used.
1265
8bc732e8 1266
1f0ebb98
TL
1267Exim version 4.84
1268-----------------
09728d20
TL
1269TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1270 checkers that were complaining about end of non-void function with no
1271 return.
1f0ebb98 1272
a612424f 1273JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1274 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1275
1276JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1277
1278TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1279 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1280
1f0ebb98 1281
c0e56233
TF
1282Exim version 4.83
1283-----------------
1284
1285TF/01 Correctly close the server side of TLS when forking for delivery.
1286
1287 When a message was received over SMTP with TLS, Exim failed to clear up
1288 the incoming connection properly after forking off the child process to
1289 deliver the message. In some situations the subsequent outgoing
1290 delivery connection happened to have the same fd number as the incoming
1291 connection previously had. Exim would try to use TLS and fail, logging
1292 a "Bad file descriptor" error.
1293
7245734e
TF
1294TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1295 utilities have not been installed.
1296
fd5dad68
JH
1297JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1298 temporary space as the ACL may create new global variables.
1299
5428a946
TL
1300TL/01 LDAP support uses per connection or global context settings, depending
1301 upon the detected version of the libraries at build time.
1302
a3c86431
TL
1303TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1304 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1305 were a direct connection from the outside internet. PPv2 support was
1306 updated based on HAProxy spec change in May 2014.
a3c86431 1307
aa26e137
JH
1308JH/02 Add ${listextract {number}{list}{success}{fail}}.
1309
5a1b8443
WB
1310TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1311 Properly escape header and check for NULL return.
1312
72c9e342
PP
1313PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1314 not dns_use_dnssec.
1315
76f44207
WB
1316JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1317
770747fd
MFM
1318TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1319 characters in header names, implemented as a verify condition.
1320 Contributed by Michael Fischer v. Mollard.
1321
8ddef691 1322TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1323 results permerror and temperror. Previous values are deprecated but
1324 still accepted. In a future release, err_perm and err_temp will be
1325 completely removed, which will be a backward incompatibility if the
1326 ACL tests for either of these two old results. Patch contributed by
8ddef691 1327 user bes-internal on the mailing list.
c0e56233 1328
b9c2e32f
AR
1329JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1330
e45a1c37
JH
1331JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1332 selectors, in both main and reject logs.
1333
67d81c10
JH
1334JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1335 failed delivery.
1336
b1f8e4f8
JH
1337JH/07 Add malware type "sock" for talking to simple daemon.
1338
511a6c14 1339JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1340
1341JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1342 routers/transports under cutthrough routing.
214042d2 1343
51c7471d
JH
1344JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1345 numbers. Touch up "bool" conditional to keep the same definition.
1346
3695be34
TL
1347TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1348
1e06383a
TL
1349JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1350
76146973
JH
1351JH/12 Expand items in router/transport headers_add or headers_remove lists
1352 individually rather than the list as a whole. Bug 1452.
1353
1354 Required for reasonable handling of multiple headers_ options when
1355 they may be empty; requires that headers_remove items with embedded
1356 colons must have them doubled (or the list-separator changed).
1357
8c8b8274
TL
1358TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1359 view the policy declared in the DMARC record. Currently, $dmarc_status
1360 is a combined value of both the record presence and the result of the
1361 analysis.
b1f8e4f8 1362
35aba663
JH
1363JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1364
8c51eead 1365JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1366 dnslookup router and the smtp transport (applying to the forward
1367 lookup).
8c51eead 1368
deae092e
HS
1369TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1370 of ldap servers used for a specific lookup. Patch provided by Heiko
1371 Schlichting.
35aba663 1372
fd3b6a4a 1373JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1374 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1375
8d91c6dc
LT
1376TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1377 Patch submitted by Lars Timman.
1378
2b4a568d
JH
1379JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1380
d2af03f4
HS
1381TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1382 Requires trusted mode and valid format message id, aborts otherwise.
1383 Patch contributed by Heiko Schlichting.
1384
9d1c15ef
JH
1385JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1386 certextract with support for various fields. Bug 1358.
1387
44662487
JH
1388JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1389 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1390 hosts_request_ocsp.
1391
ed3bba5f 1392JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1393 operate on certificate variables to give certificate fingerprints
9ef9101c 1394 Also new ${sha256:cert_variable}.
44662487 1395
8ccd00b1
JH
1396JH/23 The PRDR feature is moved from being Experimental into the mainline.
1397
8ded8589
TL
1398TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1399 Christian Aistleitner.
1400
f2de3a33
JH
1401JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1402
6eb02f88
TL
1403TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1404 file. Patch from Wolfgang Breyha.
1405
00bff6f6
JH
1406JH/25 Expand the coverage of the delivery $host and $host_address to
1407 client authenticators run in verify callout. Bug 1476.
1408
071c51f7
JH
1409JH/26 Port service names are now accepted for tls_on_connect_ports, to
1410 align with daemon_smtp_ports. Bug 72.
1411
a6d4c44e
TF
1412TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1413 support and error reporting did not work properly.
1414
3ae173e7
ACK
1415TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1416 and is readable. Patch from Andrew Colin Kissa.
1417
c13d09b8
TL
1418TL/14 Enhance documentation of ${run expansion and how it parses the
1419 commandline after expansion, particularly in the case when an
1420 unquoted variable expansion results in an empty value.
1421
0df4ab80
JH
1422JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1423
66be95e0
PP
1424PP/02 Fix internal collision of T_APL on systems which support RFC3123
1425 by renaming away from it. Addresses GH issue 15, reported by
1426 Jasper Wallace.
1427
1bd0d12b
JH
1428JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1429
0de7239e
TL
1430TL/15 SECURITY: prevent double expansion in math comparison functions
1431 (can expand unsanitized data). Not remotely exploitable.
1432 CVE-2014-2972
1433
fd3b6a4a 1434
2c422e6f 1435Exim version 4.82
98a90c36
PP
1436-----------------
1437
1438PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1439
12f69989
PP
1440PP/02 Make -n do something, by making it not do something.
1441 When combined with -bP, the name of an option is not output.
1442
54c90be1
PP
1443PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1444 by GnuTLS.
1445
1f4a55da
PP
1446PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1447 $sender_host_name and config options to manage this, and basic check
1448 routines.
1449
13363eba 1450PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1451
66645890 1452PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1453 (Only plugin which currently uses this is kerberos4, which nobody should
1454 be using, but we should make it available and other future plugins might
1455 conceivably use it, even though it would break NAT; stuff *should* be
1456 using channel bindings instead).
66645890 1457
a3fb9793 1458PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1459 name; added for Sendmail compatibility; requires admin caller.
1460 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1461 just ignore it); requires trusted caller.
a3fb9793 1462 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1463 Bugzilla 1117.
a3fb9793 1464
d27f98fe 1465TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1466
6822b909
TL
1467TL/02 Add +smtp_confirmation as a default logging option.
1468
e7568d51
TL
1469TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1470 Patch by Magnus Holmgren from 2007-02-20.
1471
ae0e32ee 1472TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1473 Bugzilla 1283 - Spec typo.
97f42f10 1474 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1475
1476TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1477
e2658fff
TL
1478TL/06 Add Experimental DMARC support using libopendmarc libraries.
1479
83712b39
TL
1480TL/07 Fix an out of order global option causing a segfault. Reported to dev
1481 mailing list by by Dmitry Isaikin.
1482
976b7e9f
JH
1483JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1484
be4a1376
JH
1485JH/02 Support "G" suffix to numbers in ${if comparisons.
1486
ec4b68e5
PP
1487PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1488
d7148a07
NM
1489NM/01 Bugzilla 1197 - Spec typo
1490 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1491
585121e2 1492JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1493
2519e60d
TL
1494PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1495 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1496 function.
a5f239e4 1497
13d08c90
PP
1498PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1499 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1500
bef3ea7f
JH
1501JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1502 "acl {{name}{arg}...}", and optional args on acl condition
1503 "acl = name arg..."
a5f239e4 1504
846726c5
JH
1505JH/05 Permit multiple router/transport headers_add/remove lines.
1506
3a796370
JH
1507JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1508
ea722490 1509JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1510 Performance patch from Paul Fisher. Bugzilla 1262.
1511
b1b05573
JH
1512JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1513 Bugzilla 884.
1514
362145b5
JH
1515JH/09 Add $headers_added variable, with content from use of ACL modifier
1516 add_header (but not yet added to the message). Bugzilla 199.
1517
3c0a92dc
JH
1518JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1519 Pulled from Bugzilla 817 by Wolfgang Breyha.
1520
6d7c6175
PP
1521PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1522 CVE-2012-5671
e78e6ecf 1523 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1524
6f123593
JH
1525JH/11 Add A= logging on delivery lines, and a client_set_id option on
1526 authenticators.
1527
c8e2fc1e
JH
1528JH/12 Add optional authenticated_sender logging to A= and a log_selector
1529 for control.
1530
005ac57f
PP
1531PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1532
3f1df0e3
PP
1533PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1534 advertise SMTP AUTH mechanism to us, instead of a generic
1535 protocol violation error. Also, make Exim more robust to bad
1536 data from the Dovecot auth socket.
1537
67bd1ab3
TF
1538TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1539
1540 When a queue runner is handling a message, Exim first routes the
1541 recipient addresses, during which it prunes them based on the retry
1542 hints database. After that it attempts to deliver the message to
1543 any remaining recipients. It then updates the hints database using
1544 the retry rules.
1545
1546 So if a recipient address works intermittently, it can get repeatedly
1547 deferred at routing time. The retry hints record remains fresh so the
1548 address never reaches the final cutoff time.
1549
1550 This is a fairly common occurrence when a user is bumping up against
1551 their storage quota. Exim had some logic in its local delivery code
1552 to deal with this. However it did not apply to per-recipient defers
1553 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1554
1ddeb334
TF
1555 This change adds a proper retry rule check during routing so that the
1556 final cutoff time is checked against the message's age. We only do
1557 this check if there is an address retry record and there is not a
1558 domain retry record; this implies that previous attempts to handle
1559 the address had the retry_use_local_parts option turned on. We use
1560 this as an approximation for the destination being like a local
1561 delivery, as in LMTP.
67bd1ab3
TF
1562
1563 I suspect this new check makes the old local delivery cutoff check
1564 redundant, but I have not verified this so I left the code in place.
1565
326cdc37
TF
1566TF/02 Correct gecos expansion when From: is a prefix of the username.
1567
1568 Test 0254 submits a message to Exim with the header
1569
1570 Resent-From: f
1571
1572 When I ran the test suite under the user fanf2, Exim expanded
1573 the header to contain my full name, whereas it should have added
1574 a Resent-Sender: header. It erroneously treats any prefix of the
1575 username as equal to the username.
1576
1577 This change corrects that bug.
1578
f62514b3
GF
1579GF/01 DCC debug and logging tidyup
1580 Error conditions log to paniclog rather than rejectlog.
1581 Debug lines prefixed by "DCC: " to remove any ambiguity.
1582
eb505532
TF
1583TF/03 Avoid unnecessary rebuilds of lookup-related code.
1584
14c7b357
PP
1585PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1586 Bug spotted by Jeremy Harris; was flawed since initial commit.
1587 Would have resulted in OCSP responses post-SNI triggering an Exim
1588 NULL dereference and crash.
1589
94eaf700
PP
1590JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1591
6f5a440a
PP
1592PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1593 Bug detection, analysis and fix by Samuel Thibault.
1594 Bugzilla 1331, Debian bug #698092.
1595
514ee161
SC
1596SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1597
fd98a5c6
JH
1598JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1599 Server implementation by Todd Lyons, client by JH.
1600 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1601 config variable "prdr_enable" controls whether the server
1602 advertises the facility. If the client requests PRDR a new
1603 acl_data_smtp_prdr ACL is called once for each recipient, after
1604 the body content is received and before the acl_smtp_data ACL.
4c04137d 1605 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1606 on the smtp transport, and the server advertisement.
1607 Default client logging of deliveries and rejections involving
1608 PRDR are flagged with the string "PRDR".
1609
035c7f1e
PP
1610PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1611 fclose(). Diagnosis by Todd Lyons.
1612
ff284120
PP
1613PP/17 Update configure.default to handle IPv6 localhost better.
1614 Patch by Alain Williams (plus minor tweaks).
1615 Bugzilla 880.
1616
26e72755
PP
1617PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1618 This is now consistent with GnuTLS, and is now documented: the
1619 previous undocumented portable approach to treating the option as
1620 unset was to force an expansion failure. That still works, and
1621 an empty string is now equivalent.
1622
0fbd9bff
PP
1623PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1624 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1625 not performing validation itself.
1626
700d22f3
PP
1627PP/20 Added force_command boolean option to pipe transport.
1628 Patch from Nick Koston, of cPanel Inc.
1629
fcc8e047
JH
1630JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1631 Bugzilla 321, 823.
1632
4c04137d 1633TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1634
8c020188
PP
1635PP/21 Fix eximon continuous updating with timestamped log-files.
1636 Broken in a format-string cleanup in 4.80, missed when I repaired the
1637 other false fix of the same issue.
1638 Report and fix from Heiko Schlichting.
1639 Bugzilla 1363.
1640
d13cdd30
PP
1641PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1642 Report from Prashanth Katuri.
1643
e2fbf4a2
PP
1644PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1645 It's SecureTransport, so affects any MacOS clients which use the
1646 system-integrated TLS libraries, including email clients.
1647
f4c1088b
PP
1648PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1649 using a MIME ACL for non-SMTP local injection.
1650 Report and assistance in diagnosis by Warren Baker.
1651
c5c2182f
PP
1652TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1653
73431ca9
JH
1654JH/16 Fix comparisons for 64b. Bugzilla 1385.
1655
2d07a215
TL
1656TL/09 Add expansion variable $authenticated_fail_id to keep track of
1657 last id that failed so it may be referenced in subsequent ACL's.
1658
a30a8861
TL
1659TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1660 Alexander Miroch.
1661
33382dd9
TL
1662TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1663 ldap library initialization, allowing self-signed CA's to be
1664 used. Also properly sets require_cert option later in code by
1665 using NULL (global ldap config) instead of ldap handle (per
1666 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1667
046172e6
TL
1668TL/12 Enhanced documentation in the ratelimit.pl script provided in
1669 the src/util/ subdirectory.
1670
581d7bee 1671TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1672 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1673 EXPERIMENTAL_TPDA.
1674
1675TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1676 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1677 redis_servers = needs to be configured which will be used by the redis
1678 lookup. Patch from Warren Baker, of The Packet Hub.
1679
237b2cf2
TL
1680TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1681
9fc5a352
TL
1682TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1683 hostname or reverse DNS when processing a host list. Used suggestions
1684 from multiple comments on this bug.
1a7b746d 1685
b10e4ec2
TL
1686TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1687
e2cebd74
TL
1688TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1689 Missed a few lines, added it to make the runtest require no keyboard
1690 interaction.
1691
1692TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1693 contains upper case chars. Make router use caseful_local_part.
1694
2519e60d
TL
1695TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1696 support when GnuTLS has been built with p11-kit.
1697
e78e6ecf 1698
4263f395
PP
1699Exim version 4.80.1
1700-------------------
1701
1702PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1703 CVE-2012-5671
2c422e6f 1704 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1705
ea722490 1706
b1770b6e 1707Exim version 4.80
0599f9cf
PP
1708-----------------
1709
1710PP/01 Handle short writes when writing local log-files.
1711 In practice, only affects FreeBSD (8 onwards).
1712 Bugzilla 1053, with thanks to Dmitry Isaikin.
1713
23c7e742
NM
1714NM/01 Bugzilla 949 - Documentation tweak
1715
b322aac8
NM
1716NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1717 improved.
1718
4a891427
NM
1719NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1720
c1e794ba 1721PP/02 Implemented gsasl authenticator.
b322aac8 1722
97753960
PP
1723PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1724
1725PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1726 `pkg-config foo` for cflags/libs.
1727
df6303fa
PP
1728PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1729 with rest of GSASL and with heimdal_gssapi.
1730
7e6a8985
PP
1731PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1732 `pkg-config foo` for cflags/libs for the TLS implementation.
1733
f1e05cc7 1734PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1735 properties get this fed in as external SSF. A number of robustness
1736 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1737
4c287009
PP
1738PP/08 cyrus_sasl server now expands the server_realm option.
1739
b98bb9ac
PP
1740PP/09 Bugzilla 1214 - Log authentication information in reject log.
1741 Patch by Jeremy Harris.
1742
4a6a987a
PP
1743PP/10 Added dbmjz lookup type.
1744
c45dd180 1745PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1746
7db8d074
PP
1747PP/12 MAIL args handles TAB as well as SP, for better interop with
1748 non-compliant senders.
1749 Analysis and variant patch by Todd Lyons.
1750
eae0036b 1751NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1752 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1753 Patch from Dirk Mueller <dmueller@suse.com>
1754
dec5017e
PP
1755PP/13 tls_peerdn now print-escaped for spool files.
1756 Observed some $tls_peerdn in wild which contained \n, which resulted
1757 in spool file corruption.
1758
c80c5570
PP
1759PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1760 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1761 or write after TLS renegotiation, which otherwise led to messages
1762 "Got SSL error 2".
1763
076b11e2
PP
1764TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1765 as a tracking header (ie: a signed header comes before the signature).
1766 Patch from Wolfgang Breyha.
1767
5407bfff
JH
1768JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1769 comma-sep list; embedded commas doubled.
1770
9e45c72b
PP
1771JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1772
e74376d8
PP
1773PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1774 diagnostics.
1775 Report and patch from Dmitry Banschikov.
1776
4c04137d 1777PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1778 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1779 failures. We appear to now support TLS1.1+ with Exim.
1780
7be682ca
PP
1781PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1782 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1783 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1784 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1785
ef840681
PP
1786PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1787 NULL dereference. Report and patch from Alun Jones.
1788
5bfb4cdf
PP
1789PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1790 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1791 Not seeing resolver debug output on NetBSD, but suspect this is a
1792 resolver implementation change.
1793
c6e95d22
PP
1794PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1795 Left warnings. Added "eximon gdb" invocation mode.
1796
9cbad13b
PP
1797PP/21 Defaulting "accept_8bitmime" to true, not false.
1798
9ee44efb
PP
1799PP/22 Added -bw for inetd wait mode support.
1800
6a6084f8
PP
1801PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1802 locate the relevant includes and libraries. Made this the default.
1803
12dd53c7
PP
1804PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1805 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1806
9e45c72b 1807JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1808 This may cause build issues on older platforms.
1809
17c76198
PP
1810PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1811 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1812 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1813 Added SNI support via GnuTLS too.
af3498d6 1814 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1815
53947857 1816PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1817
eae0036b 1818PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1819 Applied second patch from Janne, implementing suggestion to default
1820 multiple-strings-in-record handling to match SPF spec.
eae0036b 1821
9e45c72b 1822JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1823
7390e768
PP
1824PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1825 read-only, out of scope).
1826 Patch from Wolfgang Breyha, report from Stuart Northfield.
1827
08488c86
PP
1828PP/29 Fix three issues highlighted by clang analyser static analysis.
1829 Only crash-plausible issue would require the Cambridge-specific
1830 iplookup router and a misconfiguration.
1831 Report from Marcin Mirosław.
1832
6475bd82
PP
1833PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1834
81f91683
PP
1835PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1836 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1837 As part of this, removing so much warning spew let me fix some minor
1838 real issues in debug logging.
1839
5779e6aa
PP
1840PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1841 assignment on my part. Fixed.
1842
3375e053
PP
1843PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1844 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1845 Janne Snabb (who went above and beyond: thank you).
1846
1847PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1848 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1849 relatively easy to get wrong. Should also expose TLS library linkage
1850 problems.
3375e053 1851
9d26b8c0
PP
1852PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1853 64-bit ${eval} (JH/03).
1854
57eb9e91 1855PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1856 GNU libc to support some of the 64-bit stuff, should not lead to
1857 conflicts. Defined before os.h is pulled in, so if a given platform
1858 needs to override this, it can.
1859
16880d1a
PP
1860PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1861 protection layer was required, which is not implemented.
1862 Bugzilla 1254, patch from Wolfgang Breyha.
1863
a799883d
PP
1864PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1865 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1866 tls_dhparam take prime identifiers. Also unbreak combination of
1867 OpenSSL+DH_params+TLSSNI.
1868
3ecab157 1869PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1870
0599f9cf 1871
867fcbf5
PP
1872Exim version 4.77
1873-----------------
1874
1875PP/01 Solaris build fix for Oracle's LDAP libraries.
1876 Bugzilla 1109, patch from Stephen Usher.
1877
f1a29782
TF
1878TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1879
ab42bd23
TK
1880TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1881 whitespace trailer
867fcbf5 1882
0ca0cf52
TF
1883TF/02 Fix a couple more cases where we did not log the error message
1884 when unlink() failed. See also change 4.74-TF/03.
1885
921b12ca
TF
1886TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1887 lock up or crash if it happened to be inside a call to libc when it
1888 got a SIGUSR1 from exiwhat.
1889
1890 The SIGUSR1 handler appends the current process status to the process
1891 log which is later printed by exiwhat. It used to use the general
1892 purpose logging code to do this, but several functions it calls are
1893 not safe for signals.
1894
1895 The new output code in the SIGUSR1 handler is specific to the process
1896 log, and simple enough that it's easy to inspect for signal safety.
1897 Removing some special cases also simplifies the general logging code.
1898 Removing the spurious timestamps from the process log simplifies
1899 exiwhat.
1900
c99ce5c9
TF
1901TF/04 Improved ratelimit ACL condition.
1902
1903 The /noupdate option has been deprecated in favour of /readonly which
1904 has clearer semantics. The /leaky, /strict, and /readonly update modes
1905 are mutually exclusive. The update mode is no longer included in the
1906 database key; it just determines when the database is updated. (This
4c04137d 1907 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1908
1909 Exim now checks that the per_* options are used with an update mode that
1910 makes sense for the current ACL. For example, when Exim is processing a
1911 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1912 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1913 must specify per_mail/readonly. If you omit the update mode it defaults to
1914 /leaky where that makes sense (as before) or /readonly where required.
1915
1916 The /noupdate option is now undocumented but still supported for
1917 backwards compatibility. It is equivalent to /readonly except that in
1918 ACLs where /readonly is required you may specify /leaky/noupdate or
1919 /strict/noupdate which are treated the same as /readonly.
1920
1921 A useful new feature is the /count= option. This is a generalization
1922 of the per_byte option, so that you can measure the throughput of other
1923 aggregate values. For example, the per_byte option is now equivalent
1924 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1925
1926 The per_rcpt option has been generalized using the /count= mechanism
1927 (though it's more complicated than the per_byte equivalence). When it is
1928 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1929 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1930 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1931 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1932 Note that using per_rcpt with a non-readonly update mode in more than
1933 one ACL will cause the recipients to be double-counted. (The per_mail
1934 and per_byte options don't have this problem.)
1935
1936 The handling of very low rates has changed slightly. If the computed rate
1937 is less than the event's count (usually one) then this event is the first
1938 after a long gap. In this case the rate is set to the same as this event's
1939 count, so that the first message of a spam run is counted properly.
1940
1941 The major new feature is a mechanism for counting the rate of unique
1942 events. The new per_addr option counts the number of different
1943 recipients that someone has sent messages to in the last time period. It
1944 behaves like per_rcpt if all the recipient addresses are different, but
1945 duplicate recipient addresses do not increase the measured rate. Like
1946 the /count= option this is a general mechanism, so the per_addr option
1947 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1948 example, measure the rate that a client uses different sender addresses
1949 with the options per_mail/unique=$sender_address. There are further
1950 details in the main documentation.
1951
3634fc25
TF
1952TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1953
792e8a19
TF
1954TF/06 Removed a few PCRE remnants.
1955
5901f0ab
TF
1956TF/07 Automatically extract Exim's version number from tags in the git
1957 repository when doing development or release builds.
1958
7f2a2a43
PP
1959PP/02 Raise smtp_cmd_buffer_size to 16kB.
1960 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1961
061b7ebd
PP
1962PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1963 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1964 Bugzilla 97.
1965
e12f8c32
PP
1966PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1967
9e949f00 1968PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1969 Bugzilla 1078. Patch from John Horne.
1970
1971PP/06 Stop make process more reliably on build failure.
1972 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1973
555ae6af 1974PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1975 Bugzilla 1089. Patch from Heiko Schlittermann.
1976
1977PP/08 Handle ${run} returning more data than OS pipe buffer size.
1978 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1979
6f7fe114
PP
1980PP/09 Handle IPv6 addresses with SPF.
1981 Bugzilla 860. Patch from Wolfgang Breyha.
1982
c566dd90
PP
1983PP/10 GnuTLS: support TLS 1.2 & 1.1.
1984 Bugzilla 1156.
89f897c3
PP
1985 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1986 Bugzilla 1095.
c566dd90 1987
d6cc7c78 1988PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1989 New compile-time build option, EXPAND_LISTMATCH_RHS.
1990 New expansion conditions, "inlist", "inlisti".
1991
0d0e4455
PP
1992PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1993
3399bb60 1994PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1995
1996PP/14 fix log_write() format string regression from TF/03.
1997 Bugzilla 1152. Patch from Dmitry Isaikin.
1998
0ca0cf52 1999
10906672
PP
2000Exim version 4.76
2001-----------------
2002
2003PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2004
754a0503
PP
2005PP/02 Harmonised TLS library version reporting; only show if debugging.
2006 Layout now matches that introduced for other libraries in 4.74 PP/03.
2007
c0c7b2da
PP
2008PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2009
e97d1f08
PP
2010PP/04 New "dns_use_edns0" global option.
2011
084c1d8c
PP
2012PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2013 Bugzilla 1098.
2014
4e7ee012
PP
2015PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2016 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2017
c8d52a00
PP
2018TK/01 Updated PolarSSL code to 0.14.2.
2019 Bugzilla 1097. Patch from Andreas Metzler.
2020
54e7ce4a
PP
2021PP/07 Catch divide-by-zero in ${eval:...}.
2022 Fixes bugzilla 1102.
2023
5ee6f336
PP
2024PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2025 Bugzilla 1104.
2026
c8d52a00 2027TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2028 format-string attack -- SECURITY: remote arbitrary code execution.
2029
2030TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2031 time unintentionally subject to list matching rules, letting the header
2032 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2033 arbitrary string expansion). This allowed for information disclosure.
2034
2035PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2036 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2037
10906672 2038
aa097c4c
NM
2039Exim version 4.75
2040-----------------
2041
4c04137d 2042NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2043 Bugzilla 1073
2044
7f3d9eff
TF
2045TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2046 This fixes portability to compilers other than gcc, notably
2047 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2048
159f52d2
TF
2049TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2050 makefiles for portability to HP-UX and POSIX correctness.
2051
0cc9542a
PP
2052PP/01 Permit LOOKUP_foo enabling on the make command-line.
2053 Also via indented variable definition in the Makefile.
2054 (Debugging by Oliver Heesakkers).
2055
f7274286
PP
2056PP/02 Restore caching of spamd results with expanded spamd_address.
2057 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2058
7b797365
PP
2059PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2060 Improves build reliability. Fix from: Frank Elsner
2061
caacae52
NM
2062NM/02 Fix wide character breakage in the rfc2047 coding
2063 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2064
09dcaba9
NM
2065NM/03 Allow underscore in dnslist lookups
2066 Fixes bug 1026. Patch from Graeme Fowler
2067
bc19a55b
PP
2068PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2069 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2070
bd4c9759
NM
2071NM/04 Fixed exiqgrep to cope with mailq missing size issue
2072 Fixes bug 943.
2073
b72aab72
PP
2074PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2075 is logged, to avoid truncation. Patch from John Horne.
2076
2fe76745
PP
2077PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2078 Patch from Jakob Hirsch.
2079
76aa570c
PP
2080PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2081 SQL string expansion failure details.
2082 Patch from Andrey Oktyabrski.
2083
f1e5fef5
PP
2084PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2085 Patch from Simon Arlott.
2086
4d805ee9
PP
2087PP/09 New lookups functionality failed to compile on old gcc which rejects
2088 extern declarations in function scope.
2089 Patch from Oliver Fleischmann
2090
cd59ab18
PP
2091PP/10 Use sig_atomic_t for flags set from signal handlers.
2092 Check getgroups() return and improve debugging.
2093 Fixed developed for diagnosis in bug 927 (which turned out to be
2094 a kernel bug).
2095
332f5cf3
PP
2096PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2097 Patch from Mark Zealey.
2098
29cfeb94
PP
2099PP/12 Bugzilla 1056: Improved spamd server selection.
2100 Patch from Mark Zealey.
2101
660242ad
PP
2102PP/13 Bugzilla 1086: Deal with maildir quota file races.
2103 Based on patch from Heiko Schlittermann.
2104
bc4bc4c5
PP
2105PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2106 Patch from Uwe Doering, sign-off by Michael Haardt.
2107
2e64baa9
NM
2108NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2109 variable declaration deep within a block. Bug and patch from
2110 Dennis Davis.
2111
4c04137d 2112PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2113
6bac1a9a
PP
2114PP/16 Make DISABLE_DKIM build knob functional.
2115
552193f0
NM
2116NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2117 Patch by Simon Arlott
baeee2c1 2118
1b587e48
TF
2119TF/03 Fix valgrind.h portability to C89 compilers that do not support
2120 variable argument macros. Our copy now differs from upstream.
2121
aa097c4c 2122
8c07b69f
TF
2123Exim version 4.74
2124-----------------
2125
2126TF/01 Failure to get a lock on a hints database can have serious
2127 consequences so log it to the panic log.
2128
c0ea85ab
TF
2129TF/02 Log LMTP confirmation messages in the same way as SMTP,
2130 controlled using the smtp_confirmation log selector.
2131
0761d44e
TF
2132TF/03 Include the error message when we fail to unlink a spool file.
2133
0a349494
PP
2134DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2135 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2136 for maintaining out-of-tree patches for some time.
2137
2138PP/01 Bugzilla 139: Documentation and portability issues.
2139 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2140 Handle per-OS dynamic-module compilation flags.
2141
fea24b2e
PP
2142PP/02 Let /dev/null have normal permissions.
2143 The 4.73 fixes were a little too stringent and complained about the
2144 permissions on /dev/null. Exempt it from some checks.
2145 Reported by Andreas M. Kirchwitz.
2146
6545de78
PP
2147PP/03 Report version information for many libraries, including
2148 Exim version information for dynamically loaded libraries. Created
2149 version.h, now support a version extension string for distributors
2150 who patch heavily. Dynamic module ABI change.
2151
1670ef10
PP
2152PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2153 privilege escalation vulnerability whereby the Exim run-time user
2154 can cause root to append content of the attacker's choosing to
2155 arbitrary files.
2156
c0886197
PP
2157PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2158 (Wolfgang Breyha)
2159
b7487bce
PP
2160PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2161 If dropping privileges for untrusted macros, we disabled normal logging
2162 on the basis that it would fail; for the Exim run-time user, this is not
2163 the case, and it resulted in successful deliveries going unlogged.
2164 Fixed. Reported by Andreas Metzler.
2165
8c07b69f 2166
97fd1e48 2167Exim version 4.73
ed7f7860 2168-----------------
97fd1e48
PP
2169
2170PP/01 Date: & Message-Id: revert to normally being appended to a message,
2171 only prepend for the Resent-* case. Fixes regression introduced in
2172 Exim 4.70 by NM/22 for Bugzilla 607.
2173
6901c596
PP
2174PP/02 Include check_rfc2047_length in configure.default because we're seeing
2175 increasing numbers of administrators be bitten by this.
2176
a8c8d6b5
JJ
2177JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2178
77bb000f
PP
2179PP/03 Bugzilla 994: added openssl_options main configuration option.
2180
a29e5231
PP
2181PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2182
ec5a0394 2183PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2184
55c75993
PP
2185PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2186
453a6645 2187PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2188 without a peer certificate, leading to a segfault because of an
2189 assumption that peers always have certificates. Be a little more
453a6645
PP
2190 paranoid. Problem reported by Martin Tscholak.
2191
8544e77a
PP
2192PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2193 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2194 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2195 CL also introduces -bmalware, various -d+acl logging additions and
2196 more caution in buffer sizes.
8544e77a 2197
83e029d5
PP
2198PP/09 Implemented reverse_ip expansion operator.
2199
ed7f7860
PP
2200PP/10 Bugzilla 937: provide a "debug" ACL control.
2201
7d9f747b
PP
2202PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2203
4b2241d2
PP
2204PP/12 Bugzilla 973: Implement --version.
2205
10385c15
PP
2206PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2207
dbc4b90d
PP
2208PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2209
532be449
PP
2210PP/15 Bugzilla 816: support multiple condition rules on Routers.
2211
6a8de854 2212PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2213 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2214 ignore trailing whitespace.
6a8de854 2215
5dc43717
JJ
2216JJ/02 prevent non-panic DKIM error from being sent to paniclog
2217
2218JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2219 "exim" to be used
55c75993 2220
3346ab01
PP
2221PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2222 Notification from Dr Andrew Aitchison.
2223
491fab4c
PP
2224PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2225 ExtendedDetectionInfo response format.
2226 Notification from John Horne.
2227
13eb9497
PP
2228PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2229 compatible.
2230
2231PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2232 XSL and documented dependency on system catalogs, with examples of how
2233 it normally works.
2234
7f36d675
DW
2235DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2236 access.
2237
c1d94452
DW
2238DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2239 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2240 configuration file which is writeable by the Exim user or group.
2241
e2f5dc15
DW
2242DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2243 of configuration files to cover files specified with the -C option if
2244 they are going to be used with root privileges, not just the default
2245 configuration file.
2246
cd25e41d
DW
2247DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2248 option (effectively making it always true).
2249
261dc43e
DW
2250DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2251 files to be used while preserving root privileges.
2252
fa32850b
DW
2253DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2254 that rogue child processes cannot use them.
2255
79d4bc3d
PP
2256PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2257 run-time user, instead of root.
2258
43236f35 2259PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2260 Exim run-time user without dropping privileges.
2261
fb08281f
DW
2262DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2263 result string, instead of calling string_vformat() twice with the same
2264 arguments.
3346ab01 2265
74935b98
DW
2266DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2267 for other users. Others should always drop root privileges if they use
2268 -C on the command line, even for a whitelisted configure file.
2269
90b6341f
DW
2270DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2271
57730b52
ML
2272NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2273
66581d1e 2274
465e92cf
JJ
2275Exim version 4.72
2276-----------------
2277
453a6645
PP
2278JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2279 $data_path, and $header_path variables; fixed documentation bugs and
2280 typos
465e92cf 2281
453a6645
PP
2282JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2283 exipick to access non-standard spools, including the "frozen" queue
2284 (Finput)
edae0343 2285
9bd3e22c
NM
2286NM/01 Bugzilla 965: Support mysql stored procedures.
2287 Patch from Alain Williams
2288
bb576ff7
NM
2289NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2290
5a1a5845
NM
2291NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2292 Patch from Andreas Metzler
2293
981a9fad
NM
2294NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2295 Patch from Kirill Miazine
2296
7fc497ee
NM
2297NM/05 Bugzilla 671: Added umask to procmail example.
2298
1a41defa
JJ
2299JJ/03 installed exipick 20100323.0, fixing doc bug
2300
a466095c 2301NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2302 directory. Notification and patch from Dan Rosenberg.
a466095c 2303
94a6bd0b
NM
2304TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2305
2306TK/02 Improve log output when DKIM signing operation fails.
2307
2308MH/01 Treat the transport option dkim_domain as a colon separated
2309 list, not as a single string, and sign the message with each element,
2310 omitting multiple occurences of the same signer.
2311
c1b141a8
NM
2312NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2313 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2314
b26eacf1 2315NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2316 Patch by Simon Arlott
2317
179c5980 2318PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2319 MBX locking. Notification from Dan Rosenberg.
179c5980 2320
9bd3e22c 2321
7c6d71af
NM
2322Exim version 4.71
2323-----------------
2324
7d9f747b 2325TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2326
f013fb92
NM
2327NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2328
0eb8eedd
NM
2329NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2330
663ee6d9
NM
2331NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2332
177ebd9b
NM
2333NM/04 Bugzilla 915: Flag broken perl installation during build.
2334
7c6d71af 2335
210f147e
NM
2336Exim version 4.70
2337-----------------
2338
cdd3bb85 2339TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2340 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2341
2342TK/02 Write list of recipients to X-Envelope-Sender header when building
2343 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2344 Hirsch).
cdd3bb85
TK
2345
2346TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2347 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2348 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2349
2350TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2351 by Mark Daniel Reidel <mr@df.eu>.
2352
210f147e
NM
2353NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2354 When building exim an external PCRE library is now needed -
2355 PCRE is a system library on the majority of modern systems.
2356 See entry on PCRE_LIBS in EDITME file.
2357
deafd5b3
NM
2358NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2359 conversation. Added nologin parameter to request.
7d9f747b 2360 Patch contributed by Kirill Miazine.
deafd5b3 2361
089793a4
TF
2362TF/01 Do not log submission mode rewrites if they do not change the address.
2363
5f16ca82
TF
2364TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2365
dae9d94e 2366NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2367 log files in place. Contributed by Roberto Lima.
dae9d94e 2368
7d9f747b 2369NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2370
06864c44
TF
2371TF/03 Bugzilla 615: When checking the local_parts router precondition
2372 after a local_part_suffix or local_part_prefix option, Exim now
2373 does not use the address's named list lookup cache, since this
2374 contains cached lookups for the whole local part.
2375
65a7d8c3 2376NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2377 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2378
23510047 2379TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2380
7d9f747b 2381NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2382
7d8eec3a 2383NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2384 Patch provided by Jan Srzednicki.
6c588e74 2385
89dec7b6
TF
2386TF/05 Leading white space used to be stripped from $spam_report which
2387 wrecked the formatting. Now it is preserved.
5f28a6e8 2388
a99de90c
TF
2389TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2390 that they are available at delivery time.
2391
e2803e40
TF
2392TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2393
7199e1ee
TF
2394TF/08 TLS error reporting now respects the incoming_interface and
2395 incoming_port log selectors.
2396
e276e04b
TF
2397TF/09 Produce a more useful error message if an SMTP transport's hosts
2398 setting expands to an empty string.
2399
ce552449 2400NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2401 Patch provided by Phil Pennock.
ce552449 2402
e765a0f1 2403NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2404 Patch provided by Richard Godbee.
e765a0f1 2405
4f054c63 2406NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2407 acl_smtp_notquit, added index entry.
4f054c63 2408
7d9f747b
PP
2409NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2410 Patch provided by Eugene Bujak.
24c929a2 2411
7d9f747b
PP
2412NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2413 accept(). Patch provided by Maxim Dounin.
cf73943b 2414
b52bc06e 2415NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2416 Patch provided by Phil Pennock.
b52bc06e 2417
447de4b0
NM
2418NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2419
4c69d561 2420NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2421 Patch provided by Brad "anomie" Jorsch.
4c69d561 2422
d5c39246 2423NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2424 Patch provided by Dean Brooks.
9b989985 2425
0b23848a
TK
2426TK/05 Add native DKIM support (does not depend on external libraries).
2427
8f3414a1 2428NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2429 Patch provided by Graeme Fowler.
e2aacdfd 2430
fb6f955d
NM
2431NM/16 Bugzilla 851: Documentation example syntax fix.
2432
2433NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2434
7d9f747b
PP
2435NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2436 lsearch.
dbb0bf41 2437
7d9f747b
PP
2438NM/19 Bugzilla 745: TLS version reporting.
2439 Patch provided by Phil Pennock.
f3766eb5 2440
7d9f747b
PP
2441NM/20 Bugzilla 167: bool: condition support.
2442 Patch provided by Phil Pennock.
36f12725 2443
7d9f747b
PP
2444NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2445 clients. Patch provided by Phil Pennock.
e6060e2c 2446
7d9f747b
PP
2447NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2448 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2449
7d9f747b
PP
2450NM/23 Bugzilla 687: Fix misparses in eximstats.
2451 Patch provided by Heiko Schlittermann.
d5c13d66 2452
7d9f747b
PP
2453NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2454 Patch provided by Heiko Schlittermann.
b2335c0b 2455
7d9f747b 2456NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2457 plus update to original patch.
f4cd9433 2458
7d9f747b 2459NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2460
7d9f747b
PP
2461NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2462 Patch provided by David Brownlee.
8dc71ab3 2463
7d9f747b 2464NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2465
7d9f747b 2466NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2467
7d9f747b 2468NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2469
7d9f747b 2470NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2471
17792b53 2472NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2473 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2474
7d9f747b
PP
2475NM/33 Bugzilla 898: Transport filter timeout fix.
2476 Patch by Todd Rinaldo.
52383f8f 2477
91576cec 2478NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2479 Patch by Serge Demonchaux.
5ca6d115 2480
7d9f747b
PP
2481NM/35 Bugzilla 39: Base64 decode bug fixes.
2482 Patch by Jakob Hirsch.
baee9eee 2483
7d9f747b 2484NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2485
7d9f747b 2486NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2487
7d9f747b 2488NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2489
7d9f747b 2490NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2491
deafd5b3 2492
47db1125
NM
2493Exim version 4.69
2494-----------------
2495
4b3504d0
TK
2496TK/01 Add preliminary DKIM support. Currently requires a forked version of
2497 ALT-N's libdkim that I have put here:
2498 http://duncanthrax.net/exim-experimental/
2499
2500 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2501 were called 'true' and it seems that C99 defines that as a reserved
2502 keyword to be used with 'bool' variable types. That means you could
2503 not include C99-style headers which use bools without triggering
2504 build errors in sieve.c.
2505
81ea09ca
NM
2506NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2507 as mailq or other aliases. Changed the --help handling significantly
2508 to do whats expected. exim_usage() emits usage/help information.
2509
f13cddcb
SC
2510SC/01 Added the -bylocaldomain option to eximstats.
2511
7d9f747b 2512NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2513
7d9f747b 2514NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2515
7d9f747b 2516NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2517
2518
eb4c0de6
PH
2519Exim version 4.68
2520-----------------
2521
2522PH/01 Another patch from the Sieve maintainer.
2523
6a3bceb1
PH
2524PH/02 When an IPv6 address is converted to a string for single-key lookup
2525 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2526 dots are used instead of colons so that keys in lsearch files need not
2527 contain colons. This was done some time before quoting was made available
2528 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2529 (notated using the quote facility) so as to distinguish them from IPv4
2530 keys. This meant that lookups for IP addresses in host lists did not work
2531 for iplsearch lookups.
2532
2533 This has been fixed by arranging for IPv6 addresses to be expressed with
2534 colons if the lookup type is iplsearch. This is not incompatible, because
2535 previously such lookups could never work.
2536
4c04137d 2537 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2538 ordinary lsearch keys. However, making the change in all cases is
2539 incompatible and would probably break a number of configurations.
2540
2e30fa9d
TK
2541TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2542 version.
2543
0806a9c5
MH
2544MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2545 conversion specification without a maximum field width, thereby enabling
2546 a rogue spamd server to cause a buffer overflow. While nobody in their
2547 right mind would setup Exim to query an untrusted spamd server, an
2548 attacker that gains access to a server running spamd could potentially
2549 exploit this vulnerability to run arbitrary code as the Exim user.
2550
ae276964
TK
2551TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2552 $primary_hostname instead of what libspf2 thinks the hosts name is.
2553
0f2cbd1b
MH
2554MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2555 a directory entry by the name of the lookup key. Previously, if a
2556 symlink pointed to a non-existing file or a file in a directory that
2557 Exim lacked permissions to read, a lookup for a key matching that
2558 symlink would fail. Now it is enough that a matching directory entry
2559 exists, symlink or not. (Bugzilla 503.)
2560
2b85bce7
PH
2561PH/03 The body_linecount and body_zerocount variables are now exported in the
2562 local_scan API.
2563
93655c46
PH
2564PH/04 Added the $dnslist_matched variable.
2565
6c512171
PH
2566PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2567 This means they are set thereafter only if the connection becomes
2568 encrypted.
2569
2570PH/06 Added the client_condition to authenticators so that some can be skipped
2571 by clients under certain conditions.
2572
aa6dc513
PH
2573PH/07 The error message for a badly-placed control=no_multiline_responses left
2574 "_responses" off the end of the name.
2575
a96603a0
PH
2576PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2577
8f240103
PH
2578PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2579 (without spaces) instead of just copying the configuration text.
2580
2581PH/10 Added the /noupdate option to the ratelimit ACL condition.
2582
d677b2f2
PH
2583PH/11 Added $max_received_linelength.
2584
d52120f2
PH
2585PH/12 Added +ignore_defer and +include_defer to host lists.
2586
64f2600a
PH
2587PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2588 way in which PCRE > 7.0 is built.
2589
8669f003
PH
2590PH/14 Implemented queue_only_load_latch.
2591
a4dc33a8
PH
2592PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2593 MAIL command. The effect was to mangle the value on 64-bit systems.
2594
d6a60c0f
PH
2595PH/16 Another patch from the Sieve maintainer.
2596
8f128379
PH
2597PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2598
8932dffe
PH
2599PH/18 If a system quota error occurred while trying to create the file for
2600 a maildir delivery, the message "Mailbox is full" was not appended to the
2601 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2602 only to a quota excession during the actual writing of the file.
d6a60c0f 2603
ddea74fa 2604PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2605 characters?) which causes problems in log lines. The DN values are now
2606 passed through string_printing() before being added to log lines.
2607
ddea74fa 2608PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2609 and InterBase are left for another time.)
2610
ddea74fa
PH
2611PH/21 Added message_body_newlines option.
2612
ce9f225c
PH
2613PH/22 Guard against possible overflow in moan_check_errorcopy().
2614
19897d52
PH
2615PH/23 POSIX allows open() to be a macro; guard against that.
2616
bc64a74d
PH
2617PH/24 If the recipient of an error message contained an @ in the local part
2618 (suitably quoted, of course), incorrect values were put in $domain and
2619 $local_part during the evaluation of errors_copy.
2620
eb4c0de6 2621
b4ed4da0
PH
2622Exim version 4.67
2623-----------------
2624
22ad45c9
MH
2625MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2626 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2627 Jan Srzednicki.
2628
b4ed4da0
PH
2629PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2630 issue a MAIL command.
2631
431b7361
PH
2632PH/02 In an ACL statement such as
2633
2634 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2635
2636 if a client was not listed at all, or was listed with a value other than
2637 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2638 the condition was not true (as it should be), so access was not denied.
2639 The bug was that the ! inversion was incorrectly passed on to the second
2640 item. This has been fixed.
2641
2642PH/03 Added additional dnslists conditions == and =& which are different from
2643 = and & when the dns lookup returns more than one IP address.
2644
83da1223
PH
2645PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2646 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2647
54fc8428
PH
2648PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2649 FSYNC, which compiles an option called disable_fsync that allows for
2650 bypassing fsync(). The documentation is heavily laced with warnings.
2651
34c5e8dd
SC
2652SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2653
bbe15da8
PH
2654PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2655 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2656 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2657 including adding "make clean"; (3) Added -fPIC when compiling the test
2658 dynamically loaded module, to get rid of a warning.
2659
0e8a9471
MH
2660MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2661 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2662 = 0s. The bug is otherwise harmless.
2663
f0872424
PH
2664PH/07 There was a bug in the dovecot authenticator such that the value of
2665 $auth1 could be overwritten, and so not correctly preserved, after a
2666 successful authentication. This usually meant that the value preserved by
2667 the server_setid option was incorrect.
2668
b01dd148
PH
2669PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2670
6bf342e1
PH
2671PH/09 Installed PCRE release 7.0.
2672
273f34d0
PH
2673PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2674 run for batched SMTP input. It is now run at the start of every message
2675 in the batch. While fixing this I discovered that the process information
2676 (output by running exiwhat) was not always getting set for -bs and -bS
2677 input. This is fixed, and it now also says "batched" for BSMTP.
2678
cf8b11a5
PH
2679PH/11 Added control=no_pipelining.
2680
41c7c167
PH
2681PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2682 patch, slightly modified), and move the expansion of helo_data till after
2683 the connection is made in the smtp transport (so it can use these
2684 values).
2685
9c57cbc0
PH
2686PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2687
f3f065bb
PH
2688PH/14 Added log_selector = +pid.
2689
047bdd8c
PH
2690PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2691
0ce9abe6
PH
2692PH/16 Add ${if forany and ${if forall.
2693
0e22dfd1
PH
2694PH/17 Added dsn_from option to vary the From: line in DSNs.
2695
4c590bd1
PH
2696PH/18 Flush SMTP output before performing a callout, unless control =
2697 no_callout_flush is set.
2698
09945f1e
PH
2699PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2700 was true (the default) a successful delivery failed to delete the retry
2701 item, thus causing premature timeout of the address. The bug is now
2702 fixed.
2703
c51b8e75
PH
2704PH/20 Added hosts_avoid_pipelining to the smtp transport.
2705
e28326d8 2706PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2707 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2708 other ACL rejections are.
2709
75b1493f
PH
2710PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2711 with slight modification.
2712
7c5214ec
PH
2713PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2714 draft, changing the syntax and factoring some duplicate code".
2715
4311097e
PH
2716PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2717 for deliveries of the second and subsequent messages over the same SMTP
2718 connection.
2719
29f89cad
PH
2720PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2721 ${reduce, with only minor "tidies".
2722
5e687460
SC
2723SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2724
c3611384
PH
2725PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2726 expansion side effects.
2727
5a11a7b4
PH
2728PH/27 When a message times out after an over-quota error from an Exim-imposed
2729 quota, the bounce message says "mailbox is full". This message was not
2730 being given when it was a system quota that was exceeded. It now should
2731 be the same.
2732
0e20aff9
MH
2733MH/03 Made $recipients available in local_scan(). local_scan() already has
2734 better access to the recipient list through recipients_list[], but
2735 $recipients can be useful in postmaster-provided expansion strings.
2736
ca86f471
PH
2737PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2738 in the case of a MAIL command with additional options following the
2739 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2740 were accidentally chopped off.
2741
a14e5636
PH
2742PH/29 SMTP synchronization checks are implemented when a command is read -
2743 there is a check that no more input is waiting when there shouldn't be
2744 any. However, for some commands, a delay in an ACL can mean that it is
2745 some time before the response is written. In this time, more input might
2746 arrive, invalidly. So now there are extra checks after an ACL has run for
2747 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2748 pipelining has not been advertised.
2749
ec95d1a6
PH
2750PH/30 MH's patch to allow iscntrl() characters to be list separators.
2751
42855d71
PH
2752PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2753 returned in the SMTP response when smtp_return_error_details was false.
2754 This has been fixed.
2755
57c2c631
PH
2756PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2757 instead of the C I/O that was originally supplied, because problems were
2758 reported on Solaris.
2759
58c01c94
PH
2760PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2761 Exim which did not show up earlier: it was assuming that a call to
2762 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2763 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2764 was a macro that became an assignment, so it seemed to work. This has
2765 changed to a proper function call with a void return, hence the compile
2766 error. Exim's code has been fixed.
2767
dee5a20a
PH
2768PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2769 cpus.
2770
d2ee6114
PH
2771PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2772
b2d5182b
PH
2773PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2774
79749a79
PH
2775PH/37 If a message is not accepted after it has had an id assigned (e.g.
2776 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2777 "Completed" line in the log. When some messages of this type were
2778 selected by exigrep, they were listed as "not completed". Others were
2779 picked up by some special patterns. I have improved the selection
2780 criteria to be more general.
79749a79 2781
c456d9bb
PH
2782PH/38 The host_find_failed option in the manualroute router can now be set
2783 to "ignore", to completely ignore a host whose IP address cannot be
2784 found. If all hosts are ignored, the behaviour is controlled by the new
2785 host_all_ignored option.
2786
cd9868ec
PH
2787PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2788 homing or because of multiple MX records with /mx) generated more than
2789 one IP address, and the following item turned out to be the local host,
2790 all the secondary addresses of the first item were incorrectly removed
2791 from the list, along with the local host and any following hosts (which
2792 is what is supposed to happen).
2793
ebeaf996
PH
2794PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2795 whoever called Exim into the -H file. In the case of the daemon it was
2796 behaving confusingly. When first started, it used values for whoever
2797 started the daemon, but after a SIGHUP it used the Exim user (because it
2798 calls itself on a restart). I have changed the code so that it now always
2799 uses the Exim user.
2800
2679d413
PH
2801PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2802 message are rejected with the same error (e.g. no authentication or bad
2803 sender address), and a DATA command is nevertheless sent (as can happen
2804 with PIPELINING or a stupid MUA), the error message that was given to the
2805 RCPT commands is included in the rejection of the DATA command. This is
2806 intended to be helpful for MUAs that show only the final error to their
2807 users.
2808
84024b72
PH
2809PH/42 Another patch from the Sieve maintainer.
2810
8005d38e
SC
2811SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2812 Eximstats - Fixed some broken HTML links and added missing column headers
2813 (Jez Hancock).
2814 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2815 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2816
3298c6c6
SC
2817SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2818
a43a27c5
PH
2819PH/43 Yet another patch from the Sieve maintainer.
2820
58eb016e 2821PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2822 the response to the final '.' that terminates a message, but only in the
2823 case where the client has not sent further data following the '.'
2824 (unfortunately, this is allowed). However, in many cases there won't be
2825 any further data because there won't be any more messages to send. A call
2826 to select() can be used: if it shows that the input is "ready", there is
2827 either input waiting, or the socket has been closed. An attempt to read
2828 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2829 would have sent an OK response which the client would never have see.
563b63fa
PH
2830 This could lead to message repetition. This fix should cure that, at
2831 least in a lot of common cases.
58eb016e 2832
b43a74ea
PH
2833PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2834 advertised in response to EHLO.
2835
b4ed4da0 2836
5dd1517f
PH
2837Exim version 4.66
2838-----------------
2839
2840PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2841 fixed by 4.65/MH/01 (is this a record?) are fixed:
2842
2843 (i) An empty string was always treated as zero by the numeric comparison
2844 operators. This behaviour has been restored.
2845
2846 (ii) It is documented that the numeric comparison operators always treat
2847 their arguments as decimal numbers. This was broken in that numbers
2848 starting with 0 were being interpreted as octal.
2849
2850 While fixing these problems I realized that there was another issue that
2851 hadn't been noticed. Values of message_size_limit (both the global option
2852 and the transport option) were treated as octal if they started with 0.
2853 The documentation was vague. These values are now always treated as
2854 decimal, and I will make that clear in the documentation.
2855
2856
93cfa765
TK
2857Exim version 4.65
2858-----------------
2859
2860TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2861 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2862 versions. (#438)
2863
d6066548
MH
2864MH/01 Don't check that the operands of numeric comparison operators are
2865 integers when their expansion is in "skipping" mode (fixes bug
2866 introduced by 4.64-PH/07).
2867
4362ff0d
PH
2868PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2869 child addresses, Exim now panics and dies. Previously, because the count
2870 is held in a short int, deliveries were likely to be lost. As such a
2871 large number of recipients for a single message is ridiculous
2872 (performance will be very, very poor), I have chosen to impose a limit
2873 rather than extend the field.
2874
93cfa765 2875
944e9e9c
TF
2876Exim version 4.64
2877-----------------
aa41d2de 2878
21d74bd9
TK
2879TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2880 leftover -K file (the existence of which was triggered by #402).
2881 While we were at it, introduced process PID as part of the -K
2882 filename. This should rule out race conditions when creating
2883 these files.
2884
2885TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2886 processing considerably. Previous code took too long for large mails,
2887 triggering a timeout which in turn triggers #401.
2888
2889TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2890 in the DK code in transports.c. sendfile() is not really portable,
2891 hence the _LINUX specificness.
944e9e9c
TF
2892
2893TF/01 In the add_headers option to the mail command in an Exim filter,
2894 there was a bug that Exim would claim a syntax error in any
2895 header after the first one which had an odd number of characters
2896 in the field name.
2897
2b1c6e3a
PH
2898PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2899 callout verification, Exim cached a "reject" for the entire domain. This
2900 is correct for most verifications, but it is not correct for a recipient
2901 verification with use_sender or use_postmaster set, because in that case
2902 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2903 case of MAIL FROM:<> rejection from other early rejections (e.g.
2904 rejection of HELO). When verifying a recipient using a non-null MAIL
2905 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2906 Whatever the result of the callout, the value of the domain cache is
2907 left unchanged (for any other kind of callout, getting as far as trying
2908 RCPT means that the domain itself is ok).
2909
1f872c80
PH
2910PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2911 gcc 4.1.1 threw up.
2912
2913PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2914 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2915 session, the daemon ignores ECONNECT errors and logs others; it now
2916 ignores EPIPE as well.
2917
d203e649
PH
2918PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2919 (quoted-printable decoding).
2920
cc2ed8f7 2921PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2922 later the small subsequent patch to fix an introduced bug.
f951fd57 2923
ddfcd446
PH
2924PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2925
d45b1de8
PH
2926PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2927
2928PH/08 An error is now given if message_size_limit is specified negative.
2929
38a0a95f 2930PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2931 to be given (somewhat) arbitrary names.
38a0a95f 2932
a2405d83
JJ
2933JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2934 in 4.64-PH/09.
2935
2936JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2937 miscellaneous code fixes
2938
6ea85e9a
PH
2939PH/10 Added the log_reject_target ACL modifier to specify where to log
2940 rejections.
2941
26da7e20
PH
2942PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2943 hostname. This is wrong, because it relates to the incoming message (and
2944 probably the interface on which it is arriving) and not to the outgoing
2945 callout (which could be using a different interface). This has been
2946 changed to use the value of the helo_data option from the smtp transport
2947 instead - this is what is used when a message is actually being sent. If
2948 there is no remote transport (possible with a router that sets up host
2949 addresses), $smtp_active_hostname is used.
6ea85e9a 2950
14aa5a05 2951PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2952 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2953 (a) The code assumed that strncpy() returns a negative number on buffer
2954 overflow, which isn't the case. Replaced with Exim's string_format()
2955 function.
2956 (b) There were several signed/unsigned issues. I just did the minimum
2957 hacking in of casts. There is scope for a larger refactoring.
2958 (c) The code used strcasecmp() which is not a standard C function.
2959 Replaced with Exim's strcmpic() function.
2960 (d) The code set only $1; it now sets $auth1 as well.
2961 (e) A simple test gave the error "authentication client didn't specify
2962 service in request". It would seem that Dovecot has changed its
2963 interface. Fortunately there's a specification; I followed it and
2964 changed what the client sends and it appears to be working now.
2965
ff75a1f7
PH
2966PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2967 decoding.
2968
e6f6568e
PH
2969PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2970 address A is aliased to B and C, where B exists and C does not. Without
2971 -v the output is "A verified" because verification stops after a
2972 successful redirection if more than one address is generated. However,
2973 with -v the child addresses are also verified. Exim was outputting "A
2974 failed to verify" and then showing the successful verification for C,
2975 with its parentage. It now outputs "B failed to verify", showing B's
2976 parentage before showing the successful verification of C.
2977
d6f6e0dc
PH
2978PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2979 look up a TXT record in a specific list after matching in a combined
2980 list.
2981
322050c2
PH
2982PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2983 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2984 they consult the DNS. I had assumed they would set it the way they
2985 wanted; and indeed my experiments on Linux seem to show that in some
2986 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2987 To be on the safe side, however, I have now made the interface to
2988 host_find_byname() similar to host_find_bydns(), with an argument
2989 containing the DNS resolver options. The host_find_byname() function now
2990 sets these options at its start, just as host_find_bydns() does. The smtp
2991 transport options dns_qualify_single and dns_search_parents are passed to
2992 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2993 of host_find_byname() use the default settings of RES_DEFNAMES
2994 (qualify_single) but not RES_DNSRCH (search_parents).
2995
08955dd3
PH
2996PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2997 spool_read_header() do less string testing, by means of a preliminary
2998 switch on the second character of optional "-foo" lines. (This is
2999 overdue, caused by the large number of possibilities that now exist.
3000 Originally there were few.) While I was there, I also converted the
3001 str(n)cmp tests so they don't re-test the leading "-" and the first
3002 character, in the hope this might squeeze out yet more improvement.
3003
1eccaa59
PH
3004PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3005 flag allowing group syntax was set by the header_syntax check but not
3006 turned off, possible causing trouble later; (2) The flag was not being
3007 set at all for the header_verify test, causing "group"-style headers to
3008 be rejected. I have now set it in this case, and also caused header_
3009 verify to ignore an empty address taken from a group. While doing this, I
3010 came across some other cases where the code for allowing group syntax
3011 while scanning a header line wasn't quite right (mostly, not resetting
3012 the flag correctly in the right place). These bugs could have caused
3013 trouble for malformed header lines. I hope it is now all correct.
3014
602e59e5
PH
3015PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3016 with the "reply" argument non-NULL. The code, however (which originally
3017 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3018 but it didn't always do it. This confused somebody who was copying the
3019 code for some other use. I have removed all the tests.
3020
411ef850
PH
3021PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3022 feature that was used to support insecure browsers during the U.S. crypto
3023 embargo. It requires special client support, and Exim is probably the
3024 only MTA that supported it -- and would never use it because real RSA is
3025 always available. This code has been removed, because it had the bad
3026 effect of slowing Exim down by computing (never used) parameters for the
3027 RSA_EXPORT functionality.
3028
7befa435
PH
3029PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3030 authenticator to fail if there's a tab character in the incoming data
3031 (there should never be unless someone is messing about, as it's supposed
3032 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3033 if the connection is using TLS or if the remote IP is the same as the
3034 local IP, and the "valid-client-cert option" if a client certificate has
3035 been verified.
3036
48da4259 3037PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3038 authenticators. This can be used for authorization after authentication
3039 succeeds. (In the case of plaintext, it servers for both authentication
3040 and authorization.)
3041
48da4259
PH
3042PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3043 if any retry times were supplied.
3044
d1d5595c
PH
3045PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3046 connection, where there is no client IP address to check. In this
3047 situation, the verify now always succeeds.
3048
0ef732d9
PH
3049PH/25 Applied John Jetmore's -Mset patch.
3050
328895cc
PH
3051PH/26 Added -bem to be like -Mset, but loading a message from a file.
3052
fd700877
PH
3053PH/27 In a string expansion for a processed (not raw) header when multiple
3054 headers of the same name were present, leading whitespace was being
3055 removed from all of them, but trailing whitespace was being removed only
3056 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3057 before concatenation. Completely empty headers in a concatenation (as
3058 before) are ignored.
fd700877 3059
8dce1a6f
PH
3060PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3061 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3062
17af4a17
PH
3063PH/29 [Removed. This was a change that I later backed out, and forgot to
3064 correct the ChangeLog entry (that I had efficiently created) before
3065 committing the later change.]
f6c332bd
PH
3066
3067PH/30 Exim was sometimes attempting to deliver messages that had suffered
3068 address errors (4xx response to RCPT) over the same connection as other
3069 messages routed to the same hosts. Such deliveries are always "forced",
3070 so retry times are not inspected. This resulted in far too many retries
3071 for the affected addresses. The effect occurred only when there were more
3072 hosts than the hosts_max_try setting in the smtp transport when it had
3073 the 4xx errors. Those hosts that it had tried were not added to the list
3074 of hosts for which the message was waiting, so if all were tried, there
3075 was no problem. Two fixes have been applied:
3076
3077 (i) If there are any address or message errors in an SMTP delivery, none
3078 of the hosts (tried or untried) are now added to the list of hosts
3079 for which the message is waiting, so the message should not be a
3080 candidate for sending over the same connection that was used for a
3081 successful delivery of some other message. This seems entirely
3082 reasonable: after all the message is NOT "waiting for some host".
3083 This is so "obvious" that I'm not sure why it wasn't done
3084 previously. Hope I haven't missed anything, but it can't do any
3085 harm, as the worst effect is to miss an optimization.
3086
3087 (ii) If, despite (i), such a delivery is accidentally attempted, the
3088 routing retry time is respected, so at least it doesn't keep
3089 hammering the server.
3090
c1114884
PH
3091PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3092 in ${readsocket because some servers need this prod.
3093
7a0743eb
PH
3094PH/32 Added some extra debug output when updating a wait-xxx database.
3095
0d85fa3f
PH
3096PH/33 The hint "could be header name not terminated by colon", which has been
3097 given for certain expansion errors for a long time, was not being given
3098 for the ${if def:h_colon_omitted{... case.
3099
1bf43b78
PH
3100PH/34 The spec says: "With one important exception, whenever a domain list is
3101 being scanned, $domain contains the subject domain." There was at least
3102 one case where this was not true.
3103
520de300
PH
3104PH/35 The error "getsockname() failed: connection reset by peer" was being
3105 written to the panic log as well as the main log, but it isn't really
3106 panic-worthy as it just means the connection died rather early on. I have
3107 removed the panic log writing for the ECONNRESET error when getsockname()
3108 fails.
3109
48c7f9e2
PH
3110PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3111 runs only) independently of the message's sender address. This meant
3112 that, if the 4xx error was in fact related to the sender, a different
3113 message to the same recipient with a different sender could confuse
4c04137d 3114 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3115 server, but other circumstances could also provoke similar problems.
3116 I have changed the default so that the retry time for these errors is now
3117 based a combination of the sender and recipient addresses. This change
3118 can be overridden by setting address_retry_include_sender=false in the
3119 smtp transport.
3120
99ea1c86
PH
3121PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3122 remote server are returned as part of bounce messages. This was not
3123 happening for LMTP over a pipe (the lmtp transport), but now it is the
3124 same for both kinds of LMTP.
3125
a2042e78
PH
3126PH/38 Despite being documented as not happening, Exim was rewriting addresses
3127 in header lines that were in fact CNAMEs. This is no longer the case.
3128
4fbcfc2e
PH
3129PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3130 and queue runs started by the daemon processed all messages. This has
3131 been fixed so that -R and -S can now usefully be given with -q<time>.
3132
aa41d2de
PH
3133PH/40 Import PCRE release 6.7 (fixes some bugs).
3134
af561417
PH
3135PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3136
3cc66b45
PH
3137PH/42 Give an error if -q is specified more than once.
3138
194cc0e4
PH
3139PH/43 Renamed the variables $interface_address and $interface_port as
3140 $received_ip_address and $received_port, to make it clear that these
3141 values apply to message reception, and not to the outgoing interface when
3142 a message is delivered. (The old names remain recognized, of course.)
3143
a401ddaa
PH
3144PH/44 There was no timeout on the connect() call when using a Unix domain
3145 socket in the ${readsocket expansion. There now is.
3146
4e88a19f
PH
3147PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3148 be meaningful with "accept".
3149
d7d7b289
SC
3150SC/01 Eximstats V1.43
3151 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3152
3153SC/02 Eximstats V1.44
3154 Use a glob alias rather than an array ref in the generated
3155 parser. This improves both readability and performance.
3156
3157SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3158 Collect SpamAssassin and rejection statistics.
3159 Don't display local sender or destination tables unless
3160 there is data to show.
3161 Added average volumes into the top table text output.
3162
3163SC/04 Eximstats V1.46
3164 Collect data on the number of addresses (recipients)
3165 as well as the number of messages.
3166
3167SC/05 Eximstats V1.47
3168 Added 'Message too big' to the list of mail rejection
3169 reasons (thanks to Marco Gaiarin).
3170
3171SC/06 Eximstats V1.48
3172 Mainlog lines which have GMT offsets and are too short to
3173 have a flag are now skipped.
3174
3175SC/07 Eximstats V1.49 (Alain Williams)
3176 Added the -emptyok flag.
3177
3178SC/08 Eximstats V1.50
3179 Fixes for obtaining the IP address from reject messages.
3180
0ea2a468
JJ
3181JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3182 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3183 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3184
3185JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3186 match 4.64-PH/13
3187
3188JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3189 are found, allow negative numbers in numeric criteria)
3190
3191JJ/06 exipick.20061117.2, added new $message_body_missing variable
3192
3193JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3194 to match changes made in 4.64-PH/43
3195
8a10f5a4
PH
3196PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3197
30e18802
PH
3198PH/47 Put in an explicit test for a DNS lookup of an address record where the
3199 "domain" is actually an IP address, and force a failure. This locks out
3200 those revolvers/nameservers that support "A-for-A" lookups, in
3201 contravention of the specifications.
3202
55728a4f
PH
3203PH/48 When a host name was looked up from an IP address, and the subsequent
3204 forward lookup of the name timed out, the host name was left in
3205 $sender_host_name, contrary to the specification.
d7d7b289 3206
d7837193
PH
3207PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3208 restricted to single-key lookups, Exim was not diagnosing an error if
3209 * or *@ was used with a query-style lookup.
3210
87054a31
PH
3211PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3212
ea2c01d2
MH
3213MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3214 long ago, but noone interested enough thought of it. Let's just say that
3215 the "1.1" means that there are some new functions that weren't there at
3216 some point in the past.
3217
e4fa6968
PH
3218PH/51 Error processing for expansion failure of helo_data from an smtp
3219 transport during callout processing was broken.
3220
56f5d9bd
PH
3221PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3222 tested/used via the -bh/-bhc/-bs options.
3223
922e1c28
PH
3224PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3225 bug, fixed in subsequent PCRE releases).
3226
21eb6e72
PH
3227PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3228 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3229
a0540757
PH
3230PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3231
944e9e9c 3232
478be7b0
SC
3233Exim version 4.63
3234-----------------
3235
3236SC/01 Use a glob alias rather than an array ref in eximstats generated
3237 parser. This improves both readability and performance.
3238
3239SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3240 Don't display local sender or destination tables in eximstats unless
3241 there is data to show.
3242 Added average volumes into the eximstats top table text output.
3243
3244SC/03 Collect data on the number of addresses (recipients) as well
3245 as the number of messages in eximstats.
3246
2b965a65
TF
3247TF/01 Correct an error in the documentation for the redirect router. Exim
3248 does (usually) call initgroups() when daemonizing.
478be7b0 3249
45b91596
PH
3250TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3251 with consistent privilege compared to when running as a daemon.
478be7b0 3252
c59f5781
TF
3253TF/03 Note in the spec that $authenticated_id is not set for local