TLS: Increase RSA keysize of autogen selfsign cert
[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
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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
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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
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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
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30 messed with.
31
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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
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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
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46JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
47 legitimate.
48
e6057245
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49JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
50 Previously this would segfault.
51
7b9822bf
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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
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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
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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
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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
9723f966 163
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164Exim version 4.91
165-----------------
459fca58 166
c39c8870 167GF/01 DEFER rather than ERROR on redis cluster MOVED response.
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168 When redis_servers is set to a list of > 1 element, and the Redis servers
169 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
170 case of MOVED into a DEFER case instead, thus moving the query onto the
171 next server in the list. For a cluster of N elements, all N servers must
172 be defined in redis_servers.
c39c8870 173
0800ef83
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174GF/02 Catch and remove uninitialized value warning in exiqsumm
175 Check for existence of @ARGV before looking at $ARGV[0]
176
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177JH/01 Replace the store_release() internal interface with store_newblock(),
178 which internalises the check required to safely use the old one, plus
179 the allocate and data copy operations duplicated in both (!) of the
180 extant use locations.
181
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182JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
183 modifier. This matches the restriction on the commandline.
184
bbfb5dcd
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185JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
186 Previously only the last row was returned.
187
a05d3e34
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188JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
189 we assumed that tags in the header were well-formed, and parsed the
190 element content after inspecting only the first char of the tag.
191 Assumptions at that stage could crash the receive process on malformed
192 input.
193
ce93c6d8
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194JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
195 While running the DKIM ACL we operate on the Permanent memory pool so that
196 variables created with "set" persist to the DATA ACL. Also (at any time)
197 DNS lookups that fail create cache records using the Permanent pool. But
198 expansions release any allocations made on the current pool - so a dnsdb
199 lookup expansion done in the DKIM ACL releases the memory used for the
200 DNS negative-cache, and bad things result. Solution is to switch to the
201 Main pool for expansions.
202 While we're in that code, add checks on the DNS cache during store_reset,
203 active in the testsuite.
204 Problem spotted, and debugging aided, by Wolfgang Breyha.
205
2577f55f
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206JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
207 When none of the hosts presented to a transport match an already-open
208 connection, close it and proceed with the list. Previously we would
209 queue the message. Spotted by Lena with Yahoo, probably involving
210 round-robin DNS.
211
5b6f7658
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212JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
213 Previously a spurious "250 OK id=" response was appended to the proper
214 failure response.
215
c11d665d
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216JH/08 The "support for" informational output now, which built with Content
217 Scanning support, has a line for the malware scanner interfaces compiled
218 in. Interface can be individually included or not at build time.
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219
220JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
221 by the template makefile "src/EDITME". The "STREAM" support for an older
222 ClamAV interface method is removed.
c11d665d 223
ba0e37b1
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224JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
225 rows affected is given instead).
226
96508de1
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227JH/11 The runtime Berkeley DB library version is now additionally output by
228 "exim -d -bV". Previously only the compile-time version was shown.
229
06fdb9f7
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230JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
231 SMTP connection. Previously, when one had more receipients than the
232 first, an abortive onward connection was made. Move to full support for
233 multiple onward connections in sequence, handling cutthrough connection
234 for all multi-message initiating connections.
235
f83a760f
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236JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
237 routers. Previously, a multi-recipient message would fail to match the
238 onward-connection opened for the first recipient, and cause its closure.
239
f1fed05b
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240JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
241 a timeout on read on a GnuTLS initiating connection, resulting in the
242 initiating connection being dropped. This mattered most when the callout
243 was marked defer_ok. Fix to keep the two timeout-detection methods
244 separate.
245
051d5efa
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246JH/15 Relax results from ACL control request to enable cutthrough, in
247 unsupported situations, from error to silently (except under debug)
248 ignoring. This covers use with PRDR, frozen messages, queue-only and
249 fake-reject.
250
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251HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
252
744976d4
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253JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
254 metadata, resulting in a crash in free().
255
aab9a843 256PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 257 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 258 Broken also in d185889f4, with init system revamp.
7be14582 259
83d2a861
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260JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
261 Previously we abruptly closed the connection after reading a malware-
262 found indication; now we go on to read the "scan ok" response line,
263 and send a quit.
264
6741531c
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265JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
266 ACL. Previously, a crash would result.
267
85e03244
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268JH/19 Speed up macro lookups during configuration file read, by skipping non-
269 macro text after a replacement (previously it was only once per line) and
270 by skipping builtin macros when searching for an uppercase lead character.
271
c0635b6d
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272JH/20 DANE support moved from Experimental to mainline. The Makefile control
273 for the build is renamed.
274
b808677c
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275JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
276 was allocated for every new TLS startup, meaning one per message. Fix
277 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
278
6678c382
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279JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
280 reported the original. Fix to report (as far as possible) the ACL
281 result replacing the original.
282
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283JH/23 Fix memory leak during multi-message connections using STARTTLS under
284 OpenSSL. Certificate information is loaded for every new TLS startup,
285 and the resources needed to be freed.
286
15ae19f9
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287JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
288
e6532c4a
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289JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
290 was not propagated.
291
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292JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
293 DATA response info to the (existing) per-recipient response info for
294 the "C=" log element. It can have useful tracking info from the
295 destination system. Patch from Simon Arlott.
296
fc8cd529
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297JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
298 length value. Previously this would segfault.
299
71bb51e0
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300HS/02 Support Avast multiline protoocol, this allows passing flags to
301 newer versions of the scanner.
302
e04bfa34
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303JH/28 Ensure that variables possibly set during message acceptance are marked
304 dead before release of memory in the daemon loop. This stops complaints
305 about them when the debug_store option is enabled. Discovered specifically
306 for sender_rate_period, but applies to a whole set of variables.
c232fc99
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307 Do the same for the queue-runner and queue-list loops, for variables set
308 from spool message files. Do the same for the SMTP per-message loop, for
309 certain variables indirectly set in ACL operations.
e04bfa34 310
ecce6d9a
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311JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
312 as a multi-recipient message from a mailinglist manager). The coding had
313 an arbitrary cutoff number of characters while checking for more input;
314 enforced by writing a NUL into the buffer. This corrupted long / fast
315 input. The problem was exposed more widely when more pipelineing of SMTP
316 responses was introduced, and one Exim system was feeding another.
317 The symptom is log complaints of SMTP syntax error (NUL chars) on the
318 receiving system, and refused recipients seen by the sending system
319 (propating to people being dropped from mailing lists).
320 Discovered and pinpointed by David Carter.
321
c9cf9ac4
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322JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
323 replaced by the ${authresults } expansion.
324
b3b37076
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325JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
326
830832c9
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327HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
328 allows proper process termination in container environments.
329
f64e8b5f
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330JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
331 Previously the "final dot" had a newline after it; ensure it is CR,LF.
332
8f0776b5
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333JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
334 and "err_perm", deprecated since 4.83 when the RFC-defined words
335 "temperror" and "permerror" were introduced.
336
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337JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
338 transport-filters or DKIM-signing. The restriction was lost in the
339 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 340 Extend the restriction to also cover ARC-signing.
857eaf37 341
c85476e9
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342JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
343 in defer=pass mode supply a 450 to the initiator. Previously the message
344 would be spooled.
345
405074ad
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346PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
347 tls_require_ciphers is used as before.
348
eb445b04
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349HS/03 Malware Avast: Better match the Avast multiline protocol. Add
350 "pass_unscanned". Only tmpfails from the scanner are written to
351 the paniclog, as they may require admin intervention (permission
352 denied, license issues). Other scanner errors (like decompression
353 bombs) do not cause a paniclog entry.
ad93c40f 354
d342446f
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355JH/36 Fix reinitialisation of DKIM logging variable between messages.
356 Previously it was possible to log spurious information in receive log
357 lines.
358
a28050f8
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359JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
360 triggered odd behaviour from Outlook Express clients.
361
ddd16464
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362PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
363 suffix list.
364
321ef002
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365JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
366 since the IETF WG has not yet settled on that versus the original
367 "bare" representation.
368
3203e7ba
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369JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
370 Previously the millisecond value corrupted the output.
371 Fix also for syslog_pid=no and log_selector +pid, for which the pid
372 corrupted the output.
373
bbfb5dcd 374
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375Exim version 4.90
376-----------------
377
378JH/01 Rework error string handling in TLS interface so that the caller in
379 more cases is responsible for logging. This permits library-sourced
380 string to be attached to addresses during delivery, and collapses
381 pairs of long lines into single ones.
382
856d1e16
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383PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
384 during configuration. Wildcards are allowed and expanded.
385
b9df1829
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386JH/02 Rework error string handling in DKIM to pass more info back to callers.
387 This permits better logging.
388
875512a3
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389JH/03 Rework the transport continued-connection mechanism: when TLS is active,
390 do not close it down and have the child transport start it up again on
391 the passed-on TCP connection. Instead, proxy the child (and any
392 subsequent ones) for TLS via a unix-domain socket channel. Logging is
393 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 394 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 395
fc3f96af
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396JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
397 identical IP addresses on different listening ports. Will also affect
398 "exiwhat" output.
399
98913c8e
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400PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
401 add noisy ifdef guards to special-case this sillyness.
402 Patch from Bernd Kuhls.
403
8d909960
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404JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
405 than 255 are no longer allowed.
406
7006ee24
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407JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
408 Disable the session-cache too, which might reduce our load. Since we
409 currrectly use a new context for every connection, both as server and
410 client, there is no benefit for these.
411 GnuTLS appears to not support tickets server-side by default (we don't
412 call gnutls_session_ticket_enable_server()) but client side is enabled
413 by default on recent versions (3.1.3 +) unless the PFS priority string
414 is used (3.2.4 +).
415
6e411084
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416PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
417 <https://reproducible-builds.org/specs/source-date-epoch/>.
418
4c2471ca
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419JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
420 the check for any unsuccessful recipients did not notice the limit, and
421 erroneously found still-pending ones.
422
4e910c01
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423JH/08 Pipeline CHUNKING command and data together, on kernels that support
424 MSG_MORE. Only in-clear (not on TLS connections).
425
42055a33
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426JH/09 Avoid using a temporary file during transport using dkim. Unless a
427 transport-filter is involved we can buffer the headers in memory for
428 creating the signature, and read the spool data file once for the
429 signature and again for transmission.
430
eeb35890
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431JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
432 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 433 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 434
b7d3afcf
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435JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
436 case where the routing stage had gathered several addresses to send to
437 a host before calling the transport for the first, we previously failed
438 to close down TLS in the old transport process before passing the TCP
439 connection to the new process. The new one sent a STARTTLS command
440 which naturally failed, giving a failed delivery and bloating the retry
441 database. Investigation and fix prototype from Wolfgang Breyha.
442
40525d07
JH
443JH/12 Fix check on SMTP command input synchronisation. Previously there were
444 false-negatives in the check that the sender had not preempted a response
445 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 446 awareness of the SMTP input buffering.
40525d07 447
f33875c3
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448PP/04 Add commandline_checks_require_admin option.
449 Exim drops privileges sanely, various checks such as -be aren't a
450 security problem, as long as you trust local users with access to their
451 own account. When invoked by services which pass untrusted data to
452 Exim, this might be an issue. Set this option in main configuration
453 AND make fixes to the calling application, such as using `--` to stop
454 processing options.
455
a5ffa9b4
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456JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
457 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
458 responses to those, into a single TLS record each way (this usually means
459 a single packet). As a side issue, smtp_enforce_sync now works on TLS
460 connections.
925ac8e4 461
6600985a
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462PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
463 affects you only if you're dancing at the edge of the param size limits.
464 If you are, and this message makes sense to you, then: raise the
465 configured limit or use OpenSSL 1.1. Nothing we can do for older
466 versions.
467
ac4d558b
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468JH/14 For the "sock" variant of the malware scanner interface, accept an empty
469 cmdline element to get the documented default one. Previously it was
470 inaccessible.
471
e69636bc
JH
472JH/15 Fix a crash in the smtp transport caused when two hosts in succession
473 are unsuable for non-message-specific reasons - eg. connection timeout,
474 banner-time rejection.
475
a843a57e
JH
476JH/16 Fix logging of delivery remote port, when specified by router, under
477 callout/hold.
478
8e041ae0
PP
479PP/06 Repair manualroute's ability to take options in any order, even if one
480 is the name of a transport.
833c70bc
PP
481 Fixes bug 2140.
482
35a04365
HSHR
483HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
484
4226691b
JH
485JH/17 Change the list-building routines interface to use the expanding-string
486 triplet model, for better allocation and copying behaviour.
487
d185889f
JH
488JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
489 Previously it was constructed the first time a possibly-matching string
490 was met in the configuration file input during startup; now it is done
491 during compilation.
492
0a6c178c
JH
493JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
494 compatible one, to avoid the (poorly documented) possibility of a config
495 file in the working directory redirecting the DB files, possibly correpting
02745400 496 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 497
fae8970d
JH
498JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
499 cache-hot. Previously, although the result was properly cached, the
500 initial verify call returned a defer.
501
ad1a76fe 502JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
503 the main verify for receipient in uncached-mode.
504
ad1a76fe
JH
505JH/22 Retire historical build files to an "unsupported" subdir. These are
506 defined as "ones for which we have no current evidence of testing".
507
135e9496
JH
508JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
509 if present. Previously it was ignored.
510
f2ed27cf
JH
511JH/24 Start using specified-initialisers in C structure init coding. This is
512 a C99 feature (it's 2017, so now considered safe).
513
7eb0e5d2
JH
514JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
515 if was a fixed-sized field and bitmask ops via macros; it is now more
516 extensible.
517
4f9f4be4
518PP/07 GitHub PR 56: Apply MariaDB build fix.
519 Patch provided by Jaroslav Škarvada.
520
dc4de9cc
PP
521PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
522 during Coverity cleanups [4.87 JH/47]
523 Diagnosis and fix provided by Michael Fischer v. Mollard.
524
ea18931d
JH
525JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
526 the right size to place the terminating semicolon on its own folded
527 line, the header hash was calculated to an incorrect value thanks to
528 the (relaxed) space the fold became.
529
0768462d 530HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
531 and confused the parent.
532
848214f7
JH
533JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
534 which could crash as a result. This could lead to undeliverable messages.
535
9e0ed81f
JH
536JH/28 Logging: "next input sent too soon" now shows where input was truncated
537 for log purposes.
538
2540f2f8
JH
539JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
540 matters on fast-turnover and PID-randomising systems, which were getting
541 out-of-order delivery.
542
e5ab0ba9
JH
543JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
544 a possibly-overlapping copy. The symptom was that "Remote host closed
545 connection in response to HELO" was logged instead of the actual 4xx
546 error for the HELO.
547
e99a3a6c
JH
548JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
549 Previously only that bufferd was discarded, resulting in SYMTP command
550 desynchronisation.
551
18067c75
JH
552JH/32 DKIM: when a message has multiple signatures matching an identity given
553 in dkim_verify_signers, run the dkim acl once for each. Previously only
554 one run was done. Bug 2189.
555
72934ba7
JH
556JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
557 "panic the current process" to "deliberately defer". The panic log is
558 still written with the problem list name; the mail and reject logs now
559 get a temp-reject line for the message that was being handled, saying
560 something like "domains check lookup or other defer". The SMTP 451
561 message is still "Temporary local problem".
562
625667b6
JH
563JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
564 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
565 freed. CVE-2017-16943.
566
567HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
568 from SMTP input. Previously it was always done; now only done for DATA
569 and not BDAT commands. CVE-2017-16944.
625667b6 570
d21bf202
JH
571JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
572 to the message (such as an overlong header line). Previously this was
573 not done and we did not exit BDAT mode. Followon from the previous item
574 though a different problem.
575
acfc18c3 576
fd047340 577Exim version 4.89
acfc18c3 578-----------------
4c57a40e 579
9427e879 580JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 581 than -2003 did; needs libidn2 in addition to libidn.
fd047340 582
7b283890
JH
583JH/02 The path option on a pipe transport is now expanded before use.
584
4c57a40e
PP
585PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
586 Patch provided by "Björn", documentation fix added too.
587
5d036699
JH
588JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
589 missing a wire-to-host endian conversion.
590
f4630439
JH
591JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
592 close after a BDAT command line could be taken as a following command,
593 giving a synch failure. Fix by only checking for synch immediately
594 before acknowledging the chunk.
595
f988ce57
JS
596PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
597 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
598 macro. Patches provided by Josh Soref.
599
bd8fbe36
JH
600JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
601 Previously we did not; the RFC seems ambiguous and VRFY is not listed
602 by IANA as a service extension. However, John Klensin suggests that we
603 should.
604
605JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
606 the dkim code may be unix-mode line endings rather than smtp wire-format
607 CRLF, so prepend a CR to any bare LF.
fd047340 608
bd8fbe36 609JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
610 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
611
bd8fbe36
JH
612JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
613 the first were themselves being wrongly included in the feed into dkim
614 processing; with most chunk sizes in use this resulted in an incorrect
615 body hash calculated value.
616
eea19017
JH
617JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
618 DKIM signature block, for verification. Although advised against by
619 standards it is specifically not ruled illegal.
620
44e6651b
JH
621JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
622
623JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
624 missing a body hash (the bh= tag).
625
626JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
627 It seems that HAProxy sends the Proxy Protocol information in clear and
628 only then does a TLS startup, so do the same.
629
630JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
631 TCP connections (such as for Spamd) unless the daemon successfully set
632 Fast Open mode on its listening sockets. This fixes breakage seen on
633 too-old kernels or those not configured for Fast Open, at the cost of
634 requiring both directions being enabled for TFO, and TFO never being used
635 by non-daemon-related Exim processes.
636
637JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
638 endings, at least on the first header line. Try to canonify any that get
639 past that check, despite the cost.
640
b6040544
JH
641JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
642 now limited to an arbitrary five deep, while parsing addresses with the
643 strip_excess_angle_brackets option enabled.
644
f700ea4d
PP
645PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
646 instead leave the unprompted TLS handshake in socket buffer for the
647 TLS library to consume.
648
da88acae
PP
649PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
650
f6ef9370
PP
651PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
652
90341c71
JH
653JH/16 Drop variables when they go out of scope. Memory management drops a whole
654 region in one operation, for speed, and this leaves assigned pointers
655 dangling. Add checks run only under the testsuite which checks all
656 variables at a store-reset and panics on a dangling pointer; add code
657 explicitly nulling out all the variables discovered. Fixes one known
658 bug: a transport crash, where a dangling pointer for $sending_ip_address
659 originally assigned in a verify callout, is re-used.
660
1ec2ab36
PP
661PP/06 Drop '.' from @INC in various Perl scripts.
662
663PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
664
665PP/08 Reduce a number of compilation warnings under clang; building with
666 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
667 should be warning-free.
668
8b2b9480
PP
669JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
670
671HS/01 Fix portability problems introduced by PP/08 for platforms where
672 realloc(NULL) is not equivalent to malloc() [SunOS et al].
673
d953610f
HSHR
674HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
675 chunk. This allows us to accept broken chunked messages. We need a more
676 general solution here.
677
7dc5f827
PP
678PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
679 already-broken messages in the queue.
680
4bb432cb
PP
681JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
682
3b1a84c8
PP
683JH/19 Fix reference counting bug in routing-generated-address tracking.
684
902fbd69 685
8d042305
JH
686Exim version 4.88
687-----------------
4c57a40e 688
9094b84b
JH
689JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
690 supports it and a size is available (ie. the sending peer gave us one).
8d042305 691
03d5892b
JH
692JH/02 The obsolete acl condition "demime" is removed (finally, after ten
693 years of being deprecated). The replacements are the ACLs
694 acl_smtp_mime and acl_not_smtp_mime.
695
4b0fe319
JH
696JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
697 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
698 or even an in-clear connection were permitted. Now, if the host lookup
699 was dnssec and dane was requested then the host is only used if the
700 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
701 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
702 if one fails this test.
703 This means that a poorly-configured remote DNS will make it incommunicado;
704 but it protects against a DNS-interception attack on it.
705
789f8a4f
JH
706JH/04 Bug 1810: make continued-use of an open smtp transport connection
707 non-noisy when a race steals the message being considered.
708
23bb6982 709JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 710 self-signed certificate for inbound TLS connections.
23bb6982 711
0bd1b1ed 712JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 713 in rewrites and routers.
0bd1b1ed 714
20b9a2dc
JH
715JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
716 and logged a warning sing 4.83; now they are a configuration file error.
717
05392bbc
JH
718JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
719 (lacking @domain). Apply the same qualification processing as RCPT.
720
1a6230a3
JH
721JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
722
cfab9d68
JH
723JH/10 Support ${sha256:} applied to a string (as well as the previous
724 certificate).
725
98c82a3d
JH
726JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
727 a cutthrough deliver is pending, as we always want to make a connection.
728 This also avoids re-routing the message when later placing the cutthrough
729 connection after a verify cache hit.
730 Do not update it with the verify result either.
731
732JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
733 when routing results in more than one destination address.
734
ae8386f0
JH
735JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
736 signing (which inhibits the cutthrough capability). Previously only
737 the presence of an option was tested; now an expansion evaluating as
738 empty is permissible (obviously it should depend only on data available
739 when the cutthrough connection is made).
740
0d9fa8c0
JH
741JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
742 the relevant preceding SMTP command did not note the pipelining mode.
743
3581f321
JH
744JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
745 Previously they were not counted.
746
ef3a1a30
JH
747JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
748 as one having no matching records. Previously we deferred the message
749 that needed the lookup.
750
4c04137d 751JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
752 distinguished as "(=".
753
1435d4b2
JH
754JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
755 for missing MX records. Previously it only worked for missing A records.
756
eea0defe
JB
757JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
758
759JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
760 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 761
4c04137d 762JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
763 even for a "none" policy. Patch from Tony Meyer.
764
1c788856
JH
765JH/22 Fix continued use of a connection for further deliveries. If a port was
766 specified by a router, it must also match for the delivery to be
767 compatible.
768
e3b1f624
JH
769JH/23 Bug 1874: fix continued use of a connection for further deliveries.
770 When one of the recipients of a message was unsuitable for the connection
771 (has no matching addresses), we lost track of needing to mark it
772 deferred. As a result mail would be lost.
773
a57ce043
JH
774JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
775
f59aaaaa 776JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
777 takes up less space and should be simpler to maintain. Merge the ACL
778 condition decode tables also, with similar effect.
d7bed771 779
d1f9fb42
JH
780JH/26 Fix problem with one_time used on a redirect router which returned the
781 parent address unchanged. A retry would see the parent address marked as
782 delivered, so not attempt the (identical) child. As a result mail would
783 be lost.
784
92b0827a
JH
785JH/27 Fix a possible security hole, wherein a process operating with the Exim
786 UID can gain a root shell. Credit to http://www.halfdog.net/ for
787 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
788 itself :(
789
ddf1b11a
JH
790JH/28 Enable {spool,log} filesystem space and inode checks as default.
791 Main config options check_{log,spool}_{inodes,space} are now
792 100 inodes, 10MB unless set otherwise in the configuration.
793
3cc3f762
JH
794JH/29 Fix the connection_reject log selector to apply to the connect ACL.
795 Previously it only applied to the main-section connection policy
796 options.
797
ae5afa61
JH
798JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
799
317e40ac
PP
800PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
801 by me. Added RFC7919 DH primes as an alternative.
802
8b0fb68e
PP
803PP/02 Unbreak build via pkg-config with new hash support when crypto headers
804 are not in the system include path.
805
ad7fc6eb 806JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 807 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
808 Exim did stdio operations after fclose. This was exposed by a recent
809 change which nulled out the file handle after the fclose.
ad7fc6eb 810
ee5b1e28
JH
811JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
812 signed directly by the cert-signing cert, rather than an intermediate
813 OCSP-signing cert. This is the model used by LetsEncrypt.
814
5ddc9771
JH
815JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
816
8d73599f
JH
817HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
818 an incoming connection.
819
446415f5
HSHR
820HS/02 Bug 1802: Do not half-close the connection after sending a request
821 to rspamd.
822
8e53a4fc
HSHR
823HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
824 fallback to "prime256v1".
8d042305 825
87cb4a16 826JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 827 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
828
829
0d9b78be
JH
830Exim version 4.87
831-----------------
4c57a40e 832
82d14d6a
JH
833JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
834 and 3.4.4 - once the server is enabled to respond to an OCSP request
835 it does even when not requested, resulting in a stapling non-aware
836 client dropping the TLS connection.
0d9b78be 837
6c6d6e48
TF
838TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
839 support variable-length bit vectors. No functional change.
840
ac881e27
TF
841TF/02 Improve the consistency of logging incoming and outgoing interfaces.
842 The I= interface field on outgoing lines is now after the H= remote
843 host field, same as incoming lines. There is a separate
844 outgoing_interface log selector which allows you to disable the
845 outgoing I= field.
846
c8899c20
JH
847JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
848 If not running log_selector +smtp_connection the mainlog would be held
849 open indefinitely after a "too many connections" event, including to a
850 deleted file after a log rotate. Leave the per net connection logging
851 leaving it open for efficiency as that will be quickly detected by the
852 check on the next write.
853
f1b81d81
HSHR
854HS/01 Bug 1671: Fix post transport crash.
855 Processing the wait-<transport> messages could crash the delivery
856 process if the message IDs didn't exist for some reason. When
857 using 'split_spool_directory=yes' the construction of the spool
858 file name failed already, exposing the same netto behaviour.
859
f38917cc
JH
860JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
861 mime_regex ACL conditions.
862
895fbaf2
JH
863JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
864 to DSN fail messages (bounces): remote IP, remote greeting, remote response
865 to HELO, local diagnostic string.
866
805bb5c3
JH
867JH/05 Downgrade message for a TLS-certificate-based authentication fail from
868 log line to debug. Even when configured with a tls authenticator many
869 client connections are expected to not authenticate in this way, so
870 an authenticate fail is not an error.
871
56c2a7be
HSHR
872HS/02 Add the Exim version string to the process info. This way exiwhat
873 gives some more detail about the running daemon.
874
4c04137d 875JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
876 matter for fast-change records such as DNSBLs.
877
6f6dedcc
JH
878JH/07 Bug 1678: Always record an interface option value, if set, as part of a
879 retry record, even if constant. There may be multiple transports with
880 different interface settings and the retry behaviour needs to be kept
881 distinct.
882
0f557e90
JH
883JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
884
885JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
886
ec0eb1a3
JH
887JH/10 Bug 840: fix log_defer_output option of pipe transport
888
41e93589
JH
889JH/11 Bug 830: use same host for all RCPTS of a message, even under
890 hosts_randomize. This matters a lot when combined with mua_wrapper.
891
98b98887 892JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
893 ${quote_pgsql:<string>} operator.
894
98b98887
JH
895JH/13 Bug 1708: avoid misaligned access in cached lookup.
896
858e91c2
JH
897JH/14 Change header file name for freeradius-client. Relevant if compiling
898 with Radius support; from the Gentoo tree and checked under Fedora.
899
900JH/15 Bug 1712: Introduce $prdr_requested flag variable
901
6ff55e50
JH
902JH/16 Bug 1714: Permit an empty string as expansion result for transport
903 option transport_filter, meaning no filtering.
904
3b957582
JB
905JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
906
23f3dc67
JH
907JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
908 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 909 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
910 If a server certificate is not supplied (via tls_certificate) an error is
911 logged, and clients will find TLS connections fail on startup. Presumably
912 they will retry in-clear.
913 Packagers of Exim are strongly encouraged to create a server certificate
914 at installation time.
915
240c288f
JH
916HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
917 with the $config_file variable.
918
5ef5dd52
JB
919JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
920 in transport context, after the attempt, and per-recipient. The latter type
921 is per host attempted. The event data is the error message, and the errno
922 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 923 and the trailing two digits of the smtp 4xx response.
5ef5dd52 924
e161710d
GF
925GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
926 to write to mainlog (or rejectlog, paniclog) in the window between file
927 creation and permissions/ownership being changed. Particularly affects
928 installations where exicyclog is run as root, rather than exim user;
929 result is that the running daemon panics and dies.
930
a159f203
JH
931JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
932
7f06582c
JH
933JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
934 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
935 "pri" and "weight". Note that the previous implicit priority given by the
936 list order is no longer honoured.
937
4c04137d 938JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
939 for DKIM processing.
940
f0989ec0
JH
941JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
942 by defining SUPPORT_SOCKS.
74f150bf 943
cee5f132
JH
944JH/26 Move PROXY support from Experimental to mainline, enabled for a build
945 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
946 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
947 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 948
8c5d388a
JH
949JH/27 Move Internationalisation support from Experimental to mainline, enabled
950 for a build by defining SUPPORT_I18N
951
2d8d625b
JH
952JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
953 of the query string, and make ${quote_redis:} do that quoting.
954
0cbf2b82
JH
955JH/29 Move Events support from Experimental to mainline, enabled by default
956 and removable for a build by defining DISABLE_EVENT.
957
f2f2c91b
JH
958JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
959
ce325893
JH
960JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
961 cached by the daemon.
962
de78e2d5
JH
963JH/32 Move Redis support from Experimental to mainline, enabled for a build
964 by defining LOOKUP_REDIS. The libhiredis library is required.
965
379ba7d0
JH
966JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
967 keys are given for lookup.
968
f444c2c7
JH
969JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
970 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
971 only supported when built with TLS support. The PolarSSL SHA routines
972 are still used when the TLS library is too old for convenient support.
f444c2c7 973
a57b6200
JH
974JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
975 openssl_options), for security. OpenSSL forces this from version 1.1.0
976 server-side so match that on older versions.
977
07c73177 978JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 979 allocation for $value could be released as the expansion processing
07c73177 980 concluded, but leaving the global pointer active for it.
fa01e4f8 981
4f6ae5c3
JH
982JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
983 and to use the domains and local_parts ACL conditions.
984
1bc460a6
JH
985JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
986 incorrectly not doubled on cutthrough transmission, hence seen as a
987 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 988 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
989 via the normal store-and-forward channel. This could result in duplicates
990 received - but deduplicating mailstores were liable to retain only the
991 initial truncated version.
992
ab9152ff 993JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 994
67e87fcf
JH
995JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
996
ab9152ff
JH
997JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
998 we're in there, support oversigning also; bug 1309.
999
af483912
JH
1000JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1001
bc3c7bb7 1002HS/04 Add support for keep_environment and add_environment options.
df3def24 1003
13559da6
JH
1004JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1005 either intentional arithmetic overflow during PRNG, or testing config-
1006 induced overflows.
1007
59eaad2b
JH
1008JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1009 delivery resulted in actual delivery. Cancel cutthrough before DATA
1010 stage.
1011
f9334a28
JH
1012JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1013 rejects a recipient: pass the reject to the originator.
1014
dc8091e7
JH
1015JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1016 Many were false-positives and ignorable, but it's worth fixing the
1017 former class.
1018
dfe7d917
JH
1019JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1020 for the new environment-manipulation done at startup. Move the routines
1021 from being local to tls.c to being global via the os.c file.
1022
93cc2d6e
JH
1023JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1024 an extract embedded as result-arg for a map, the first arg for extract
1025 is unavailable so we cannot tell if this is a numbered or keyed
1026 extraction. Accept either.
1027
13559da6 1028
9c695f6d
JH
1029Exim version 4.86
1030-----------------
4c57a40e 1031
9c695f6d
JH
1032JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1033 expanded.
1034
506900af
JH
1035JH/02 The smtp transport option "multi_domain" is now expanded.
1036
ad07e9ad
JH
1037JH/03 The smtp transport now requests PRDR by default, if the server offers
1038 it.
1039
01a4a5c5 1040JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1041 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1042 can be used to disable this per-host. The build option
1043 EXPERIMENTAL_CERTNAMES is withdrawn.
1044
cb1d7830 1045JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1046 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1047 For GnuTLS, only version 3.0.20 or later.
1048
610ff438 1049JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1050 (but not required) by default. The verification status is now logged by
1051 default, for both outbound TLS and client-certificate supplying inbound
1052 TLS connections
610ff438 1053
f926e272
JH
1054JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1055 sites use this now.
1056
50dc7409
JH
1057JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1058 Status Notification (bounce) messages are now MIME format per RFC 3464.
1059 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1060 under the control of the dsn_advertise_hosts option, and routers may
1061 have a dsn_lasthop option.
1062
0f0c8159
JH
1063JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1064 default, modifiable by a malware= option. The list separator for
23763898 1065 the options can now be changed in the usual way. Bug 68.
4e71661f 1066
1ad6489e
JH
1067JH/10 The smtp_receive_timeout main option is now expanded before use.
1068
aeaf5db3
JH
1069JH/11 The incoming_interface log option now also enables logging of the
1070 local interface on delivery outgoing connections.
1071
5032d1cf
JH
1072JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1073 if the interface and destination host and port all match.
1074
7e8360e6
JH
1075JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1076 /defer_ok option.
1077
c5f280e2
AL
1078JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1079 Patch from Andrew Lewis.
1080
fd4d8871 1081JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1082 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1083 modifiers per server. Patch originally by <rommer@active.by>.
1084
1085JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1086 and remote servers. Remote servers can be IPv6 addresses, and
1087 specify a port-range.
fd4d8871 1088
23763898
JH
1089JH/17 Bug 68: The spamd_address main option now supports an optional
1090 timeout value per server.
1091
2ad78978
JH
1092JH/18 Bug 1581: Router and transport options headers_add/remove can
1093 now have the list separator specified.
1094
8a512ed5 1095JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1096 option values.
8a512ed5 1097
82c0c8ea 1098JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1099 under OpenSSL.
1100
cc00f4af
JH
1101JH/21 Support for the A6 type of dns record is withdrawn.
1102
82c0c8ea
JH
1103JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1104 rather than the verbs used.
1105
b980ed83
JH
1106JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1107 from 255 to 1024 chars.
1108
6c9ed72e
JH
1109JH/24 Verification callouts now attempt to use TLS by default.
1110
cfab9d68 1111HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1112 are generic router options now. The defaults didn't change.
50dc7409 1113
f846c8f5
JH
1114JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1115 Original patch from Alexander Shikoff, worked over by JH.
1116
fd4c285c
HSHR
1117HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1118 files if ZCAT_COMMAND is not executable.
1119
4c04137d 1120JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1121
d2a2c69b
JH
1122JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1123
8241d8dd
JH
1124JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1125 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1126 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1127 (and we were inconsistent anyway for A-only vs AAAA+A).
1128
1f12df4d
JH
1129JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1130
1f155f8e
JH
1131JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1132 when evaluating $sender_host_dnssec.
1133
1705dd20
JH
1134JH/31 Check the HELO verification lookup for DNSSEC, adding new
1135 $sender_helo_dnssec variable.
1136
038597d2
PP
1137JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1138
474f71bf
JH
1139JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1140
7137ca4b
JH
1141JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1142
dcb1095c
JH
1143JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1144 documented as working, but never had. Support all but $spam_report.
1145
2f460950
JH
1146JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1147 added for tls authenticator.
1148
2f680c0c
HSHR
1149HS/03 Add perl_taintmode main config option
1150
9c695f6d 1151
e449c3b0
TL
1152Exim version 4.85
1153-----------------
4c57a40e 1154
e449c3b0
TL
1155TL/01 When running the test suite, the README says that variables such as
1156 no_msglog_check are global and can be placed anywhere in a specific
1157 test's script, however it was observed that placement needed to be near
1158 the beginning for it to behave that way. Changed the runtest perl
1159 script to read through the entire script once to detect and set these
1160 variables, reset to the beginning of the script, and then run through
1161 the script parsing/test process like normal.
1162
ac20058f
TL
1163TL/02 The BSD's have an arc4random API. One of the functions to induce
1164 adding randomness was arc4random_stir(), but it has been removed in
1165 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1166 function when detected.
1167
a9b8ec8b
JH
1168JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1169 cause callback expansion.
1170
6286d7c4
TL
1171TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1172 syntax errors in an expansion can be treated as a string instead of
1173 logging or causing an error, due to the internal use of bool_lax
1174 instead of bool when processing it.
1175
0f06b4f2 1176JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1177 server certificates when making smtp deliveries.
1178
be36e572
JH
1179JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1180
ac4ef9bd
JH
1181JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1182
0eb51736
TL
1183TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1184
c713ca4b
TL
1185TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1186 Merged patch from Sebastian Wiedenroth.
e449c3b0 1187
bd21a787
WB
1188JH/05 Fix results-pipe from transport process. Several recipients, combined
1189 with certificate use, exposed issues where response data items split
1190 over buffer boundaries were not parsed properly. This eventually
1191 resulted in duplicates being sent. This issue only became common enough
4c04137d 1192 to notice due to the introduction of connection certificate information,
bd21a787
WB
1193 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1194
8bc732e8
JH
1195JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1196 size buffer was used, resulting in syntax errors when an expansion
1197 exceeded it.
1198
a7fec7a7
JH
1199JH/07 Add support for directories of certificates when compiled with a GnuTLS
1200 version 3.3.6 or later.
1201
4c04137d 1202JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1203 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1204 both become "event_action", the variables become $event_name, $event_data
aec45841 1205 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1206 routers, transports and related events. The tls:cert event is now also
1207 raised for inbound connections, if the main configuration event_action
1208 option is defined.
774ef2d7 1209
eca4debb
TL
1210TL/06 In test suite, disable OCSP for old versions of openssl which contained
1211 early OCSP support, but no stapling (appears to be less than 1.0.0).
1212
8d692470
JH
1213JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1214 server certificate names available under the smtp transport option
1215 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1216 matches.
1217
e9477a08
JH
1218JH/10 Time-related extraction expansions from certificates now use the main
1219 option "timezone" setting for output formatting, and are consistent
1220 between OpenSSL and GnuTLS compilations. Bug 1541.
1221
ad4c5ff9
JH
1222JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1223 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1224
1225JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1226 include certificate info, eximon was claiming there were spoolfile
1227 syntax errors.
1228
3394b36a 1229JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1230
1231JH/14 Log delivery-related information more consistently, using the sequence
1232 "H=<name> [<ip>]" wherever possible.
1233
3394b36a
TL
1234TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1235 are problematic for Debian distribution, omit them from the release
1236 tarball.
1237
ad4c5ff9
JH
1238JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1239
4c04137d 1240JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1241 Bug 1561.
1242
1243JH/17 Fix a null-indirection in certextract expansions when a nondefault
1244 output list separator was used.
1245
8bc732e8 1246
1f0ebb98
TL
1247Exim version 4.84
1248-----------------
09728d20
TL
1249TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1250 checkers that were complaining about end of non-void function with no
1251 return.
1f0ebb98 1252
a612424f 1253JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1254 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1255
1256JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1257
1258TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1259 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1260
1f0ebb98 1261
c0e56233
TF
1262Exim version 4.83
1263-----------------
1264
1265TF/01 Correctly close the server side of TLS when forking for delivery.
1266
1267 When a message was received over SMTP with TLS, Exim failed to clear up
1268 the incoming connection properly after forking off the child process to
1269 deliver the message. In some situations the subsequent outgoing
1270 delivery connection happened to have the same fd number as the incoming
1271 connection previously had. Exim would try to use TLS and fail, logging
1272 a "Bad file descriptor" error.
1273
7245734e
TF
1274TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1275 utilities have not been installed.
1276
fd5dad68
JH
1277JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1278 temporary space as the ACL may create new global variables.
1279
5428a946
TL
1280TL/01 LDAP support uses per connection or global context settings, depending
1281 upon the detected version of the libraries at build time.
1282
a3c86431
TL
1283TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1284 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1285 were a direct connection from the outside internet. PPv2 support was
1286 updated based on HAProxy spec change in May 2014.
a3c86431 1287
aa26e137
JH
1288JH/02 Add ${listextract {number}{list}{success}{fail}}.
1289
5a1b8443
WB
1290TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1291 Properly escape header and check for NULL return.
1292
72c9e342
PP
1293PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1294 not dns_use_dnssec.
1295
76f44207
WB
1296JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1297
770747fd
MFM
1298TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1299 characters in header names, implemented as a verify condition.
1300 Contributed by Michael Fischer v. Mollard.
1301
8ddef691 1302TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1303 results permerror and temperror. Previous values are deprecated but
1304 still accepted. In a future release, err_perm and err_temp will be
1305 completely removed, which will be a backward incompatibility if the
1306 ACL tests for either of these two old results. Patch contributed by
8ddef691 1307 user bes-internal on the mailing list.
c0e56233 1308
b9c2e32f
AR
1309JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1310
e45a1c37
JH
1311JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1312 selectors, in both main and reject logs.
1313
67d81c10
JH
1314JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1315 failed delivery.
1316
b1f8e4f8
JH
1317JH/07 Add malware type "sock" for talking to simple daemon.
1318
511a6c14 1319JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1320
1321JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1322 routers/transports under cutthrough routing.
214042d2 1323
51c7471d
JH
1324JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1325 numbers. Touch up "bool" conditional to keep the same definition.
1326
3695be34
TL
1327TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1328
1e06383a
TL
1329JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1330
76146973
JH
1331JH/12 Expand items in router/transport headers_add or headers_remove lists
1332 individually rather than the list as a whole. Bug 1452.
1333
1334 Required for reasonable handling of multiple headers_ options when
1335 they may be empty; requires that headers_remove items with embedded
1336 colons must have them doubled (or the list-separator changed).
1337
8c8b8274
TL
1338TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1339 view the policy declared in the DMARC record. Currently, $dmarc_status
1340 is a combined value of both the record presence and the result of the
1341 analysis.
b1f8e4f8 1342
35aba663
JH
1343JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1344
8c51eead 1345JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1346 dnslookup router and the smtp transport (applying to the forward
1347 lookup).
8c51eead 1348
deae092e
HS
1349TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1350 of ldap servers used for a specific lookup. Patch provided by Heiko
1351 Schlichting.
35aba663 1352
fd3b6a4a 1353JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1354 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1355
8d91c6dc
LT
1356TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1357 Patch submitted by Lars Timman.
1358
2b4a568d
JH
1359JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1360
d2af03f4
HS
1361TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1362 Requires trusted mode and valid format message id, aborts otherwise.
1363 Patch contributed by Heiko Schlichting.
1364
9d1c15ef
JH
1365JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1366 certextract with support for various fields. Bug 1358.
1367
44662487
JH
1368JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1369 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1370 hosts_request_ocsp.
1371
ed3bba5f 1372JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1373 operate on certificate variables to give certificate fingerprints
9ef9101c 1374 Also new ${sha256:cert_variable}.
44662487 1375
8ccd00b1
JH
1376JH/23 The PRDR feature is moved from being Experimental into the mainline.
1377
8ded8589
TL
1378TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1379 Christian Aistleitner.
1380
f2de3a33
JH
1381JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1382
6eb02f88
TL
1383TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1384 file. Patch from Wolfgang Breyha.
1385
00bff6f6
JH
1386JH/25 Expand the coverage of the delivery $host and $host_address to
1387 client authenticators run in verify callout. Bug 1476.
1388
071c51f7
JH
1389JH/26 Port service names are now accepted for tls_on_connect_ports, to
1390 align with daemon_smtp_ports. Bug 72.
1391
a6d4c44e
TF
1392TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1393 support and error reporting did not work properly.
1394
3ae173e7
ACK
1395TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1396 and is readable. Patch from Andrew Colin Kissa.
1397
c13d09b8
TL
1398TL/14 Enhance documentation of ${run expansion and how it parses the
1399 commandline after expansion, particularly in the case when an
1400 unquoted variable expansion results in an empty value.
1401
0df4ab80
JH
1402JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1403
66be95e0
PP
1404PP/02 Fix internal collision of T_APL on systems which support RFC3123
1405 by renaming away from it. Addresses GH issue 15, reported by
1406 Jasper Wallace.
1407
1bd0d12b
JH
1408JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1409
0de7239e
TL
1410TL/15 SECURITY: prevent double expansion in math comparison functions
1411 (can expand unsanitized data). Not remotely exploitable.
1412 CVE-2014-2972
1413
fd3b6a4a 1414
2c422e6f 1415Exim version 4.82
98a90c36
PP
1416-----------------
1417
1418PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1419
12f69989
PP
1420PP/02 Make -n do something, by making it not do something.
1421 When combined with -bP, the name of an option is not output.
1422
54c90be1
PP
1423PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1424 by GnuTLS.
1425
1f4a55da
PP
1426PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1427 $sender_host_name and config options to manage this, and basic check
1428 routines.
1429
13363eba 1430PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1431
66645890 1432PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1433 (Only plugin which currently uses this is kerberos4, which nobody should
1434 be using, but we should make it available and other future plugins might
1435 conceivably use it, even though it would break NAT; stuff *should* be
1436 using channel bindings instead).
66645890 1437
a3fb9793 1438PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1439 name; added for Sendmail compatibility; requires admin caller.
1440 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1441 just ignore it); requires trusted caller.
a3fb9793 1442 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1443 Bugzilla 1117.
a3fb9793 1444
d27f98fe 1445TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1446
6822b909
TL
1447TL/02 Add +smtp_confirmation as a default logging option.
1448
e7568d51
TL
1449TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1450 Patch by Magnus Holmgren from 2007-02-20.
1451
ae0e32ee 1452TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1453 Bugzilla 1283 - Spec typo.
97f42f10 1454 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1455
1456TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1457
e2658fff
TL
1458TL/06 Add Experimental DMARC support using libopendmarc libraries.
1459
83712b39
TL
1460TL/07 Fix an out of order global option causing a segfault. Reported to dev
1461 mailing list by by Dmitry Isaikin.
1462
976b7e9f
JH
1463JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1464
be4a1376
JH
1465JH/02 Support "G" suffix to numbers in ${if comparisons.
1466
ec4b68e5
PP
1467PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1468
d7148a07
NM
1469NM/01 Bugzilla 1197 - Spec typo
1470 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1471
585121e2 1472JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1473
2519e60d
TL
1474PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1475 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1476 function.
a5f239e4 1477
13d08c90
PP
1478PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1479 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1480
bef3ea7f
JH
1481JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1482 "acl {{name}{arg}...}", and optional args on acl condition
1483 "acl = name arg..."
a5f239e4 1484
846726c5
JH
1485JH/05 Permit multiple router/transport headers_add/remove lines.
1486
3a796370
JH
1487JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1488
ea722490 1489JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1490 Performance patch from Paul Fisher. Bugzilla 1262.
1491
b1b05573
JH
1492JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1493 Bugzilla 884.
1494
362145b5
JH
1495JH/09 Add $headers_added variable, with content from use of ACL modifier
1496 add_header (but not yet added to the message). Bugzilla 199.
1497
3c0a92dc
JH
1498JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1499 Pulled from Bugzilla 817 by Wolfgang Breyha.
1500
6d7c6175
PP
1501PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1502 CVE-2012-5671
e78e6ecf 1503 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1504
6f123593
JH
1505JH/11 Add A= logging on delivery lines, and a client_set_id option on
1506 authenticators.
1507
c8e2fc1e
JH
1508JH/12 Add optional authenticated_sender logging to A= and a log_selector
1509 for control.
1510
005ac57f
PP
1511PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1512
3f1df0e3
PP
1513PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1514 advertise SMTP AUTH mechanism to us, instead of a generic
1515 protocol violation error. Also, make Exim more robust to bad
1516 data from the Dovecot auth socket.
1517
67bd1ab3
TF
1518TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1519
1520 When a queue runner is handling a message, Exim first routes the
1521 recipient addresses, during which it prunes them based on the retry
1522 hints database. After that it attempts to deliver the message to
1523 any remaining recipients. It then updates the hints database using
1524 the retry rules.
1525
1526 So if a recipient address works intermittently, it can get repeatedly
1527 deferred at routing time. The retry hints record remains fresh so the
1528 address never reaches the final cutoff time.
1529
1530 This is a fairly common occurrence when a user is bumping up against
1531 their storage quota. Exim had some logic in its local delivery code
1532 to deal with this. However it did not apply to per-recipient defers
1533 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1534
1ddeb334
TF
1535 This change adds a proper retry rule check during routing so that the
1536 final cutoff time is checked against the message's age. We only do
1537 this check if there is an address retry record and there is not a
1538 domain retry record; this implies that previous attempts to handle
1539 the address had the retry_use_local_parts option turned on. We use
1540 this as an approximation for the destination being like a local
1541 delivery, as in LMTP.
67bd1ab3
TF
1542
1543 I suspect this new check makes the old local delivery cutoff check
1544 redundant, but I have not verified this so I left the code in place.
1545
326cdc37
TF
1546TF/02 Correct gecos expansion when From: is a prefix of the username.
1547
1548 Test 0254 submits a message to Exim with the header
1549
1550 Resent-From: f
1551
1552 When I ran the test suite under the user fanf2, Exim expanded
1553 the header to contain my full name, whereas it should have added
1554 a Resent-Sender: header. It erroneously treats any prefix of the
1555 username as equal to the username.
1556
1557 This change corrects that bug.
1558
f62514b3
GF
1559GF/01 DCC debug and logging tidyup
1560 Error conditions log to paniclog rather than rejectlog.
1561 Debug lines prefixed by "DCC: " to remove any ambiguity.
1562
eb505532
TF
1563TF/03 Avoid unnecessary rebuilds of lookup-related code.
1564
14c7b357
PP
1565PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1566 Bug spotted by Jeremy Harris; was flawed since initial commit.
1567 Would have resulted in OCSP responses post-SNI triggering an Exim
1568 NULL dereference and crash.
1569
94eaf700
PP
1570JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1571
6f5a440a
PP
1572PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1573 Bug detection, analysis and fix by Samuel Thibault.
1574 Bugzilla 1331, Debian bug #698092.
1575
514ee161
SC
1576SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1577
fd98a5c6
JH
1578JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1579 Server implementation by Todd Lyons, client by JH.
1580 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1581 config variable "prdr_enable" controls whether the server
1582 advertises the facility. If the client requests PRDR a new
1583 acl_data_smtp_prdr ACL is called once for each recipient, after
1584 the body content is received and before the acl_smtp_data ACL.
4c04137d 1585 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1586 on the smtp transport, and the server advertisement.
1587 Default client logging of deliveries and rejections involving
1588 PRDR are flagged with the string "PRDR".
1589
035c7f1e
PP
1590PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1591 fclose(). Diagnosis by Todd Lyons.
1592
ff284120
PP
1593PP/17 Update configure.default to handle IPv6 localhost better.
1594 Patch by Alain Williams (plus minor tweaks).
1595 Bugzilla 880.
1596
26e72755
PP
1597PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1598 This is now consistent with GnuTLS, and is now documented: the
1599 previous undocumented portable approach to treating the option as
1600 unset was to force an expansion failure. That still works, and
1601 an empty string is now equivalent.
1602
0fbd9bff
PP
1603PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1604 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1605 not performing validation itself.
1606
700d22f3
PP
1607PP/20 Added force_command boolean option to pipe transport.
1608 Patch from Nick Koston, of cPanel Inc.
1609
fcc8e047
JH
1610JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1611 Bugzilla 321, 823.
1612
4c04137d 1613TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1614
8c020188
PP
1615PP/21 Fix eximon continuous updating with timestamped log-files.
1616 Broken in a format-string cleanup in 4.80, missed when I repaired the
1617 other false fix of the same issue.
1618 Report and fix from Heiko Schlichting.
1619 Bugzilla 1363.
1620
d13cdd30
PP
1621PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1622 Report from Prashanth Katuri.
1623
e2fbf4a2
PP
1624PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1625 It's SecureTransport, so affects any MacOS clients which use the
1626 system-integrated TLS libraries, including email clients.
1627
f4c1088b
PP
1628PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1629 using a MIME ACL for non-SMTP local injection.
1630 Report and assistance in diagnosis by Warren Baker.
1631
c5c2182f
PP
1632TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1633
73431ca9
JH
1634JH/16 Fix comparisons for 64b. Bugzilla 1385.
1635
2d07a215
TL
1636TL/09 Add expansion variable $authenticated_fail_id to keep track of
1637 last id that failed so it may be referenced in subsequent ACL's.
1638
a30a8861
TL
1639TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1640 Alexander Miroch.
1641
33382dd9
TL
1642TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1643 ldap library initialization, allowing self-signed CA's to be
1644 used. Also properly sets require_cert option later in code by
1645 using NULL (global ldap config) instead of ldap handle (per
1646 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1647
046172e6
TL
1648TL/12 Enhanced documentation in the ratelimit.pl script provided in
1649 the src/util/ subdirectory.
1650
581d7bee 1651TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1652 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1653 EXPERIMENTAL_TPDA.
1654
1655TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1656 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1657 redis_servers = needs to be configured which will be used by the redis
1658 lookup. Patch from Warren Baker, of The Packet Hub.
1659
237b2cf2
TL
1660TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1661
9fc5a352
TL
1662TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1663 hostname or reverse DNS when processing a host list. Used suggestions
1664 from multiple comments on this bug.
1a7b746d 1665
b10e4ec2
TL
1666TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1667
e2cebd74
TL
1668TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1669 Missed a few lines, added it to make the runtest require no keyboard
1670 interaction.
1671
1672TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1673 contains upper case chars. Make router use caseful_local_part.
1674
2519e60d
TL
1675TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1676 support when GnuTLS has been built with p11-kit.
1677
e78e6ecf 1678
4263f395
PP
1679Exim version 4.80.1
1680-------------------
1681
1682PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1683 CVE-2012-5671
2c422e6f 1684 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1685
ea722490 1686
b1770b6e 1687Exim version 4.80
0599f9cf
PP
1688-----------------
1689
1690PP/01 Handle short writes when writing local log-files.
1691 In practice, only affects FreeBSD (8 onwards).
1692 Bugzilla 1053, with thanks to Dmitry Isaikin.
1693
23c7e742
NM
1694NM/01 Bugzilla 949 - Documentation tweak
1695
b322aac8
NM
1696NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1697 improved.
1698
4a891427
NM
1699NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1700
c1e794ba 1701PP/02 Implemented gsasl authenticator.
b322aac8 1702
97753960
PP
1703PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1704
1705PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1706 `pkg-config foo` for cflags/libs.
1707
df6303fa
PP
1708PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1709 with rest of GSASL and with heimdal_gssapi.
1710
7e6a8985
PP
1711PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1712 `pkg-config foo` for cflags/libs for the TLS implementation.
1713
f1e05cc7 1714PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1715 properties get this fed in as external SSF. A number of robustness
1716 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1717
4c287009
PP
1718PP/08 cyrus_sasl server now expands the server_realm option.
1719
b98bb9ac
PP
1720PP/09 Bugzilla 1214 - Log authentication information in reject log.
1721 Patch by Jeremy Harris.
1722
4a6a987a
PP
1723PP/10 Added dbmjz lookup type.
1724
c45dd180 1725PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1726
7db8d074
PP
1727PP/12 MAIL args handles TAB as well as SP, for better interop with
1728 non-compliant senders.
1729 Analysis and variant patch by Todd Lyons.
1730
eae0036b 1731NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1732 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1733 Patch from Dirk Mueller <dmueller@suse.com>
1734
dec5017e
PP
1735PP/13 tls_peerdn now print-escaped for spool files.
1736 Observed some $tls_peerdn in wild which contained \n, which resulted
1737 in spool file corruption.
1738
c80c5570
PP
1739PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1740 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1741 or write after TLS renegotiation, which otherwise led to messages
1742 "Got SSL error 2".
1743
076b11e2
PP
1744TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1745 as a tracking header (ie: a signed header comes before the signature).
1746 Patch from Wolfgang Breyha.
1747
5407bfff
JH
1748JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1749 comma-sep list; embedded commas doubled.
1750
9e45c72b
PP
1751JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1752
e74376d8
PP
1753PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1754 diagnostics.
1755 Report and patch from Dmitry Banschikov.
1756
4c04137d 1757PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1758 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1759 failures. We appear to now support TLS1.1+ with Exim.
1760
7be682ca
PP
1761PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1762 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1763 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1764 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1765
ef840681
PP
1766PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1767 NULL dereference. Report and patch from Alun Jones.
1768
5bfb4cdf
PP
1769PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1770 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1771 Not seeing resolver debug output on NetBSD, but suspect this is a
1772 resolver implementation change.
1773
c6e95d22
PP
1774PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1775 Left warnings. Added "eximon gdb" invocation mode.
1776
9cbad13b
PP
1777PP/21 Defaulting "accept_8bitmime" to true, not false.
1778
9ee44efb
PP
1779PP/22 Added -bw for inetd wait mode support.
1780
6a6084f8
PP
1781PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1782 locate the relevant includes and libraries. Made this the default.
1783
12dd53c7
PP
1784PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1785 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1786
9e45c72b 1787JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1788 This may cause build issues on older platforms.
1789
17c76198
PP
1790PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1791 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1792 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1793 Added SNI support via GnuTLS too.
af3498d6 1794 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1795
53947857 1796PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1797
eae0036b 1798PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1799 Applied second patch from Janne, implementing suggestion to default
1800 multiple-strings-in-record handling to match SPF spec.
eae0036b 1801
9e45c72b 1802JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1803
7390e768
PP
1804PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1805 read-only, out of scope).
1806 Patch from Wolfgang Breyha, report from Stuart Northfield.
1807
08488c86
PP
1808PP/29 Fix three issues highlighted by clang analyser static analysis.
1809 Only crash-plausible issue would require the Cambridge-specific
1810 iplookup router and a misconfiguration.
1811 Report from Marcin Mirosław.
1812
6475bd82
PP
1813PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1814
81f91683
PP
1815PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1816 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1817 As part of this, removing so much warning spew let me fix some minor
1818 real issues in debug logging.
1819
5779e6aa
PP
1820PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1821 assignment on my part. Fixed.
1822
3375e053
PP
1823PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1824 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1825 Janne Snabb (who went above and beyond: thank you).
1826
1827PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1828 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1829 relatively easy to get wrong. Should also expose TLS library linkage
1830 problems.
3375e053 1831
9d26b8c0
PP
1832PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1833 64-bit ${eval} (JH/03).
1834
57eb9e91 1835PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1836 GNU libc to support some of the 64-bit stuff, should not lead to
1837 conflicts. Defined before os.h is pulled in, so if a given platform
1838 needs to override this, it can.
1839
16880d1a
PP
1840PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1841 protection layer was required, which is not implemented.
1842 Bugzilla 1254, patch from Wolfgang Breyha.
1843
a799883d
PP
1844PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1845 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1846 tls_dhparam take prime identifiers. Also unbreak combination of
1847 OpenSSL+DH_params+TLSSNI.
1848
3ecab157 1849PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1850
0599f9cf 1851
867fcbf5
PP
1852Exim version 4.77
1853-----------------
1854
1855PP/01 Solaris build fix for Oracle's LDAP libraries.
1856 Bugzilla 1109, patch from Stephen Usher.
1857
f1a29782
TF
1858TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1859
ab42bd23
TK
1860TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1861 whitespace trailer
867fcbf5 1862
0ca0cf52
TF
1863TF/02 Fix a couple more cases where we did not log the error message
1864 when unlink() failed. See also change 4.74-TF/03.
1865
921b12ca
TF
1866TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1867 lock up or crash if it happened to be inside a call to libc when it
1868 got a SIGUSR1 from exiwhat.
1869
1870 The SIGUSR1 handler appends the current process status to the process
1871 log which is later printed by exiwhat. It used to use the general
1872 purpose logging code to do this, but several functions it calls are
1873 not safe for signals.
1874
1875 The new output code in the SIGUSR1 handler is specific to the process
1876 log, and simple enough that it's easy to inspect for signal safety.
1877 Removing some special cases also simplifies the general logging code.
1878 Removing the spurious timestamps from the process log simplifies
1879 exiwhat.
1880
c99ce5c9
TF
1881TF/04 Improved ratelimit ACL condition.
1882
1883 The /noupdate option has been deprecated in favour of /readonly which
1884 has clearer semantics. The /leaky, /strict, and /readonly update modes
1885 are mutually exclusive. The update mode is no longer included in the
1886 database key; it just determines when the database is updated. (This
4c04137d 1887 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1888
1889 Exim now checks that the per_* options are used with an update mode that
1890 makes sense for the current ACL. For example, when Exim is processing a
1891 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1892 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1893 must specify per_mail/readonly. If you omit the update mode it defaults to
1894 /leaky where that makes sense (as before) or /readonly where required.
1895
1896 The /noupdate option is now undocumented but still supported for
1897 backwards compatibility. It is equivalent to /readonly except that in
1898 ACLs where /readonly is required you may specify /leaky/noupdate or
1899 /strict/noupdate which are treated the same as /readonly.
1900
1901 A useful new feature is the /count= option. This is a generalization
1902 of the per_byte option, so that you can measure the throughput of other
1903 aggregate values. For example, the per_byte option is now equivalent
1904 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1905
1906 The per_rcpt option has been generalized using the /count= mechanism
1907 (though it's more complicated than the per_byte equivalence). When it is
1908 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1909 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1910 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1911 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1912 Note that using per_rcpt with a non-readonly update mode in more than
1913 one ACL will cause the recipients to be double-counted. (The per_mail
1914 and per_byte options don't have this problem.)
1915
1916 The handling of very low rates has changed slightly. If the computed rate
1917 is less than the event's count (usually one) then this event is the first
1918 after a long gap. In this case the rate is set to the same as this event's
1919 count, so that the first message of a spam run is counted properly.
1920
1921 The major new feature is a mechanism for counting the rate of unique
1922 events. The new per_addr option counts the number of different
1923 recipients that someone has sent messages to in the last time period. It
1924 behaves like per_rcpt if all the recipient addresses are different, but
1925 duplicate recipient addresses do not increase the measured rate. Like
1926 the /count= option this is a general mechanism, so the per_addr option
1927 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1928 example, measure the rate that a client uses different sender addresses
1929 with the options per_mail/unique=$sender_address. There are further
1930 details in the main documentation.
1931
3634fc25
TF
1932TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1933
792e8a19
TF
1934TF/06 Removed a few PCRE remnants.
1935
5901f0ab
TF
1936TF/07 Automatically extract Exim's version number from tags in the git
1937 repository when doing development or release builds.
1938
7f2a2a43
PP
1939PP/02 Raise smtp_cmd_buffer_size to 16kB.
1940 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1941
061b7ebd
PP
1942PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1943 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1944 Bugzilla 97.
1945
e12f8c32
PP
1946PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1947
9e949f00 1948PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1949 Bugzilla 1078. Patch from John Horne.
1950
1951PP/06 Stop make process more reliably on build failure.
1952 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1953
555ae6af 1954PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1955 Bugzilla 1089. Patch from Heiko Schlittermann.
1956
1957PP/08 Handle ${run} returning more data than OS pipe buffer size.
1958 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1959
6f7fe114
PP
1960PP/09 Handle IPv6 addresses with SPF.
1961 Bugzilla 860. Patch from Wolfgang Breyha.
1962
c566dd90
PP
1963PP/10 GnuTLS: support TLS 1.2 & 1.1.
1964 Bugzilla 1156.
89f897c3
PP
1965 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1966 Bugzilla 1095.
c566dd90 1967
d6cc7c78 1968PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1969 New compile-time build option, EXPAND_LISTMATCH_RHS.
1970 New expansion conditions, "inlist", "inlisti".
1971
0d0e4455
PP
1972PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1973
3399bb60 1974PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1975
1976PP/14 fix log_write() format string regression from TF/03.
1977 Bugzilla 1152. Patch from Dmitry Isaikin.
1978
0ca0cf52 1979
10906672
PP
1980Exim version 4.76
1981-----------------
1982
1983PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1984
754a0503
PP
1985PP/02 Harmonised TLS library version reporting; only show if debugging.
1986 Layout now matches that introduced for other libraries in 4.74 PP/03.
1987
c0c7b2da
PP
1988PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1989
e97d1f08
PP
1990PP/04 New "dns_use_edns0" global option.
1991
084c1d8c
PP
1992PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1993 Bugzilla 1098.
1994
4e7ee012
PP
1995PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1996 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1997
c8d52a00
PP
1998TK/01 Updated PolarSSL code to 0.14.2.
1999 Bugzilla 1097. Patch from Andreas Metzler.
2000
54e7ce4a
PP
2001PP/07 Catch divide-by-zero in ${eval:...}.
2002 Fixes bugzilla 1102.
2003
5ee6f336
PP
2004PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2005 Bugzilla 1104.
2006
c8d52a00 2007TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2008 format-string attack -- SECURITY: remote arbitrary code execution.
2009
2010TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2011 time unintentionally subject to list matching rules, letting the header
2012 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2013 arbitrary string expansion). This allowed for information disclosure.
2014
2015PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2016 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2017
10906672 2018
aa097c4c
NM
2019Exim version 4.75
2020-----------------
2021
4c04137d 2022NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2023 Bugzilla 1073
2024
7f3d9eff
TF
2025TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2026 This fixes portability to compilers other than gcc, notably
2027 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2028
159f52d2
TF
2029TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2030 makefiles for portability to HP-UX and POSIX correctness.
2031
0cc9542a
PP
2032PP/01 Permit LOOKUP_foo enabling on the make command-line.
2033 Also via indented variable definition in the Makefile.
2034 (Debugging by Oliver Heesakkers).
2035
f7274286
PP
2036PP/02 Restore caching of spamd results with expanded spamd_address.
2037 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2038
7b797365
PP
2039PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2040 Improves build reliability. Fix from: Frank Elsner
2041
caacae52
NM
2042NM/02 Fix wide character breakage in the rfc2047 coding
2043 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2044
09dcaba9
NM
2045NM/03 Allow underscore in dnslist lookups
2046 Fixes bug 1026. Patch from Graeme Fowler
2047
bc19a55b
PP
2048PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2049 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2050
bd4c9759
NM
2051NM/04 Fixed exiqgrep to cope with mailq missing size issue
2052 Fixes bug 943.
2053
b72aab72
PP
2054PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2055 is logged, to avoid truncation. Patch from John Horne.
2056
2fe76745
PP
2057PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2058 Patch from Jakob Hirsch.
2059
76aa570c
PP
2060PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2061 SQL string expansion failure details.
2062 Patch from Andrey Oktyabrski.
2063
f1e5fef5
PP
2064PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2065 Patch from Simon Arlott.
2066
4d805ee9
PP
2067PP/09 New lookups functionality failed to compile on old gcc which rejects
2068 extern declarations in function scope.
2069 Patch from Oliver Fleischmann
2070
cd59ab18
PP
2071PP/10 Use sig_atomic_t for flags set from signal handlers.
2072 Check getgroups() return and improve debugging.
2073 Fixed developed for diagnosis in bug 927 (which turned out to be
2074 a kernel bug).
2075
332f5cf3
PP
2076PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2077 Patch from Mark Zealey.
2078
29cfeb94
PP
2079PP/12 Bugzilla 1056: Improved spamd server selection.
2080 Patch from Mark Zealey.
2081
660242ad
PP
2082PP/13 Bugzilla 1086: Deal with maildir quota file races.
2083 Based on patch from Heiko Schlittermann.
2084
bc4bc4c5
PP
2085PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2086 Patch from Uwe Doering, sign-off by Michael Haardt.
2087
2e64baa9
NM
2088NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2089 variable declaration deep within a block. Bug and patch from
2090 Dennis Davis.
2091
4c04137d 2092PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2093
6bac1a9a
PP
2094PP/16 Make DISABLE_DKIM build knob functional.
2095
552193f0
NM
2096NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2097 Patch by Simon Arlott
baeee2c1 2098
1b587e48
TF
2099TF/03 Fix valgrind.h portability to C89 compilers that do not support
2100 variable argument macros. Our copy now differs from upstream.
2101
aa097c4c 2102
8c07b69f
TF
2103Exim version 4.74
2104-----------------
2105
2106TF/01 Failure to get a lock on a hints database can have serious
2107 consequences so log it to the panic log.
2108
c0ea85ab
TF
2109TF/02 Log LMTP confirmation messages in the same way as SMTP,
2110 controlled using the smtp_confirmation log selector.
2111
0761d44e
TF
2112TF/03 Include the error message when we fail to unlink a spool file.
2113
0a349494
PP
2114DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2115 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2116 for maintaining out-of-tree patches for some time.
2117
2118PP/01 Bugzilla 139: Documentation and portability issues.
2119 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2120 Handle per-OS dynamic-module compilation flags.
2121
fea24b2e
PP
2122PP/02 Let /dev/null have normal permissions.
2123 The 4.73 fixes were a little too stringent and complained about the
2124 permissions on /dev/null. Exempt it from some checks.
2125 Reported by Andreas M. Kirchwitz.
2126
6545de78
PP
2127PP/03 Report version information for many libraries, including
2128 Exim version information for dynamically loaded libraries. Created
2129 version.h, now support a version extension string for distributors
2130 who patch heavily. Dynamic module ABI change.
2131
1670ef10
PP
2132PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2133 privilege escalation vulnerability whereby the Exim run-time user
2134 can cause root to append content of the attacker's choosing to
2135 arbitrary files.
2136
c0886197
PP
2137PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2138 (Wolfgang Breyha)
2139
b7487bce
PP
2140PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2141 If dropping privileges for untrusted macros, we disabled normal logging
2142 on the basis that it would fail; for the Exim run-time user, this is not
2143 the case, and it resulted in successful deliveries going unlogged.
2144 Fixed. Reported by Andreas Metzler.
2145
8c07b69f 2146
97fd1e48 2147Exim version 4.73
ed7f7860 2148-----------------
97fd1e48
PP
2149
2150PP/01 Date: & Message-Id: revert to normally being appended to a message,
2151 only prepend for the Resent-* case. Fixes regression introduced in
2152 Exim 4.70 by NM/22 for Bugzilla 607.
2153
6901c596
PP
2154PP/02 Include check_rfc2047_length in configure.default because we're seeing
2155 increasing numbers of administrators be bitten by this.
2156
a8c8d6b5
JJ
2157JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2158
77bb000f
PP
2159PP/03 Bugzilla 994: added openssl_options main configuration option.
2160
a29e5231
PP
2161PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2162
ec5a0394 2163PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2164
55c75993
PP
2165PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2166
453a6645 2167PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2168 without a peer certificate, leading to a segfault because of an
2169 assumption that peers always have certificates. Be a little more
453a6645
PP
2170 paranoid. Problem reported by Martin Tscholak.
2171
8544e77a
PP
2172PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2173 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2174 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2175 CL also introduces -bmalware, various -d+acl logging additions and
2176 more caution in buffer sizes.
8544e77a 2177
83e029d5
PP
2178PP/09 Implemented reverse_ip expansion operator.
2179
ed7f7860
PP
2180PP/10 Bugzilla 937: provide a "debug" ACL control.
2181
7d9f747b
PP
2182PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2183
4b2241d2
PP
2184PP/12 Bugzilla 973: Implement --version.
2185
10385c15
PP
2186PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2187
dbc4b90d
PP
2188PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2189
532be449
PP
2190PP/15 Bugzilla 816: support multiple condition rules on Routers.
2191
6a8de854 2192PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2193 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2194 ignore trailing whitespace.
6a8de854 2195
5dc43717
JJ
2196JJ/02 prevent non-panic DKIM error from being sent to paniclog
2197
2198JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2199 "exim" to be used
55c75993 2200
3346ab01
PP
2201PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2202 Notification from Dr Andrew Aitchison.
2203
491fab4c
PP
2204PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2205 ExtendedDetectionInfo response format.
2206 Notification from John Horne.
2207
13eb9497
PP
2208PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2209 compatible.
2210
2211PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2212 XSL and documented dependency on system catalogs, with examples of how
2213 it normally works.
2214
7f36d675
DW
2215DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2216 access.
2217
c1d94452
DW
2218DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2219 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2220 configuration file which is writeable by the Exim user or group.
2221
e2f5dc15
DW
2222DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2223 of configuration files to cover files specified with the -C option if
2224 they are going to be used with root privileges, not just the default
2225 configuration file.
2226
cd25e41d
DW
2227DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2228 option (effectively making it always true).
2229
261dc43e
DW
2230DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2231 files to be used while preserving root privileges.
2232
fa32850b
DW
2233DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2234 that rogue child processes cannot use them.
2235
79d4bc3d
PP
2236PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2237 run-time user, instead of root.
2238
43236f35 2239PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2240 Exim run-time user without dropping privileges.
2241
fb08281f
DW
2242DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2243 result string, instead of calling string_vformat() twice with the same
2244 arguments.
3346ab01 2245
74935b98
DW
2246DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2247 for other users. Others should always drop root privileges if they use
2248 -C on the command line, even for a whitelisted configure file.
2249
90b6341f
DW
2250DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2251
57730b52
ML
2252NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2253
66581d1e 2254
465e92cf
JJ
2255Exim version 4.72
2256-----------------
2257
453a6645
PP
2258JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2259 $data_path, and $header_path variables; fixed documentation bugs and
2260 typos
465e92cf 2261
453a6645
PP
2262JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2263 exipick to access non-standard spools, including the "frozen" queue
2264 (Finput)
edae0343 2265
9bd3e22c
NM
2266NM/01 Bugzilla 965: Support mysql stored procedures.
2267 Patch from Alain Williams
2268
bb576ff7
NM
2269NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2270
5a1a5845
NM
2271NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2272 Patch from Andreas Metzler
2273
981a9fad
NM
2274NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2275 Patch from Kirill Miazine
2276
7fc497ee
NM
2277NM/05 Bugzilla 671: Added umask to procmail example.
2278
1a41defa
JJ
2279JJ/03 installed exipick 20100323.0, fixing doc bug
2280
a466095c 2281NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2282 directory. Notification and patch from Dan Rosenberg.
a466095c 2283
94a6bd0b
NM
2284TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2285
2286TK/02 Improve log output when DKIM signing operation fails.
2287
2288MH/01 Treat the transport option dkim_domain as a colon separated
2289 list, not as a single string, and sign the message with each element,
2290 omitting multiple occurences of the same signer.
2291
c1b141a8
NM
2292NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2293 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2294
b26eacf1 2295NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2296 Patch by Simon Arlott
2297
179c5980 2298PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2299 MBX locking. Notification from Dan Rosenberg.
179c5980 2300
9bd3e22c 2301
7c6d71af
NM
2302Exim version 4.71
2303-----------------
2304
7d9f747b 2305TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2306
f013fb92
NM
2307NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2308
0eb8eedd
NM
2309NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2310
663ee6d9
NM
2311NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2312
177ebd9b
NM
2313NM/04 Bugzilla 915: Flag broken perl installation during build.
2314
7c6d71af 2315
210f147e
NM
2316Exim version 4.70
2317-----------------
2318
cdd3bb85 2319TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2320 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2321
2322TK/02 Write list of recipients to X-Envelope-Sender header when building
2323 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2324 Hirsch).
cdd3bb85
TK
2325
2326TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2327 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2328 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2329
2330TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2331 by Mark Daniel Reidel <mr@df.eu>.
2332
210f147e
NM
2333NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2334 When building exim an external PCRE library is now needed -
2335 PCRE is a system library on the majority of modern systems.
2336 See entry on PCRE_LIBS in EDITME file.
2337
deafd5b3
NM
2338NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2339 conversation. Added nologin parameter to request.
7d9f747b 2340 Patch contributed by Kirill Miazine.
deafd5b3 2341
089793a4
TF
2342TF/01 Do not log submission mode rewrites if they do not change the address.
2343
5f16ca82
TF
2344TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2345
dae9d94e 2346NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2347 log files in place. Contributed by Roberto Lima.
dae9d94e 2348
7d9f747b 2349NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2350
06864c44
TF
2351TF/03 Bugzilla 615: When checking the local_parts router precondition
2352 after a local_part_suffix or local_part_prefix option, Exim now
2353 does not use the address's named list lookup cache, since this
2354 contains cached lookups for the whole local part.
2355
65a7d8c3 2356NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2357 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2358
23510047 2359TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2360
7d9f747b 2361NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2362
7d8eec3a 2363NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2364 Patch provided by Jan Srzednicki.
6c588e74 2365
89dec7b6
TF
2366TF/05 Leading white space used to be stripped from $spam_report which
2367 wrecked the formatting. Now it is preserved.
5f28a6e8 2368
a99de90c
TF
2369TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2370 that they are available at delivery time.
2371
e2803e40
TF
2372TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2373
7199e1ee
TF
2374TF/08 TLS error reporting now respects the incoming_interface and
2375 incoming_port log selectors.
2376
e276e04b
TF
2377TF/09 Produce a more useful error message if an SMTP transport's hosts
2378 setting expands to an empty string.
2379
ce552449 2380NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2381 Patch provided by Phil Pennock.
ce552449 2382
e765a0f1 2383NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2384 Patch provided by Richard Godbee.
e765a0f1 2385
4f054c63 2386NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2387 acl_smtp_notquit, added index entry.
4f054c63 2388
7d9f747b
PP
2389NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2390 Patch provided by Eugene Bujak.
24c929a2 2391
7d9f747b
PP
2392NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2393 accept(). Patch provided by Maxim Dounin.
cf73943b 2394
b52bc06e 2395NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2396 Patch provided by Phil Pennock.
b52bc06e 2397
447de4b0
NM
2398NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2399
4c69d561 2400NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2401 Patch provided by Brad "anomie" Jorsch.
4c69d561 2402
d5c39246 2403NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2404 Patch provided by Dean Brooks.
9b989985 2405
0b23848a
TK
2406TK/05 Add native DKIM support (does not depend on external libraries).
2407
8f3414a1 2408NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2409 Patch provided by Graeme Fowler.
e2aacdfd 2410
fb6f955d
NM
2411NM/16 Bugzilla 851: Documentation example syntax fix.
2412
2413NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2414
7d9f747b
PP
2415NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2416 lsearch.
dbb0bf41 2417
7d9f747b
PP
2418NM/19 Bugzilla 745: TLS version reporting.
2419 Patch provided by Phil Pennock.
f3766eb5 2420
7d9f747b
PP
2421NM/20 Bugzilla 167: bool: condition support.
2422 Patch provided by Phil Pennock.
36f12725 2423
7d9f747b
PP
2424NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2425 clients. Patch provided by Phil Pennock.
e6060e2c 2426
7d9f747b
PP
2427NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2428 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2429
7d9f747b
PP
2430NM/23 Bugzilla 687: Fix misparses in eximstats.
2431 Patch provided by Heiko Schlittermann.
d5c13d66 2432
7d9f747b
PP
2433NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2434 Patch provided by Heiko Schlittermann.
b2335c0b 2435
7d9f747b 2436NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2437 plus update to original patch.
f4cd9433 2438
7d9f747b 2439NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2440
7d9f747b
PP
2441NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2442 Patch provided by David Brownlee.
8dc71ab3 2443
7d9f747b 2444NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2445
7d9f747b 2446NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2447
7d9f747b 2448NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2449
7d9f747b 2450NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2451
17792b53 2452NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2453 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2454
7d9f747b
PP
2455NM/33 Bugzilla 898: Transport filter timeout fix.
2456 Patch by Todd Rinaldo.
52383f8f 2457
91576cec 2458NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2459 Patch by Serge Demonchaux.
5ca6d115 2460
7d9f747b
PP
2461NM/35 Bugzilla 39: Base64 decode bug fixes.
2462 Patch by Jakob Hirsch.
baee9eee 2463
7d9f747b 2464NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2465
7d9f747b 2466NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2467
7d9f747b 2468NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2469
7d9f747b 2470NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2471
deafd5b3 2472
47db1125
NM
2473Exim version 4.69
2474-----------------
2475
4b3504d0
TK
2476TK/01 Add preliminary DKIM support. Currently requires a forked version of
2477 ALT-N's libdkim that I have put here:
2478 http://duncanthrax.net/exim-experimental/
2479
2480 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2481 were called 'true' and it seems that C99 defines that as a reserved
2482 keyword to be used with 'bool' variable types. That means you could
2483 not include C99-style headers which use bools without triggering
2484 build errors in sieve.c.
2485
81ea09ca
NM
2486NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2487 as mailq or other aliases. Changed the --help handling significantly
2488 to do whats expected. exim_usage() emits usage/help information.
2489
f13cddcb
SC
2490SC/01 Added the -bylocaldomain option to eximstats.
2491
7d9f747b 2492NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2493
7d9f747b 2494NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2495
7d9f747b 2496NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2497
2498
eb4c0de6
PH
2499Exim version 4.68
2500-----------------
2501
2502PH/01 Another patch from the Sieve maintainer.
2503
6a3bceb1
PH
2504PH/02 When an IPv6 address is converted to a string for single-key lookup
2505 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2506 dots are used instead of colons so that keys in lsearch files need not
2507 contain colons. This was done some time before quoting was made available
2508 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2509 (notated using the quote facility) so as to distinguish them from IPv4
2510 keys. This meant that lookups for IP addresses in host lists did not work
2511 for iplsearch lookups.
2512
2513 This has been fixed by arranging for IPv6 addresses to be expressed with
2514 colons if the lookup type is iplsearch. This is not incompatible, because
2515 previously such lookups could never work.
2516
4c04137d 2517 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2518 ordinary lsearch keys. However, making the change in all cases is
2519 incompatible and would probably break a number of configurations.
2520
2e30fa9d
TK
2521TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2522 version.
2523
0806a9c5
MH
2524MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2525 conversion specification without a maximum field width, thereby enabling
2526 a rogue spamd server to cause a buffer overflow. While nobody in their
2527 right mind would setup Exim to query an untrusted spamd server, an
2528 attacker that gains access to a server running spamd could potentially
2529 exploit this vulnerability to run arbitrary code as the Exim user.
2530
ae276964
TK
2531TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2532 $primary_hostname instead of what libspf2 thinks the hosts name is.
2533
0f2cbd1b
MH
2534MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2535 a directory entry by the name of the lookup key. Previously, if a
2536 symlink pointed to a non-existing file or a file in a directory that
2537 Exim lacked permissions to read, a lookup for a key matching that
2538 symlink would fail. Now it is enough that a matching directory entry
2539 exists, symlink or not. (Bugzilla 503.)
2540
2b85bce7
PH
2541PH/03 The body_linecount and body_zerocount variables are now exported in the
2542 local_scan API.
2543
93655c46
PH
2544PH/04 Added the $dnslist_matched variable.
2545
6c512171
PH
2546PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2547 This means they are set thereafter only if the connection becomes
2548 encrypted.
2549
2550PH/06 Added the client_condition to authenticators so that some can be skipped
2551 by clients under certain conditions.
2552
aa6dc513
PH
2553PH/07 The error message for a badly-placed control=no_multiline_responses left
2554 "_responses" off the end of the name.
2555
a96603a0
PH
2556PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2557
8f240103
PH
2558PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2559 (without spaces) instead of just copying the configuration text.
2560
2561PH/10 Added the /noupdate option to the ratelimit ACL condition.
2562
d677b2f2
PH
2563PH/11 Added $max_received_linelength.
2564
d52120f2
PH
2565PH/12 Added +ignore_defer and +include_defer to host lists.
2566
64f2600a
PH
2567PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2568 way in which PCRE > 7.0 is built.
2569
8669f003
PH
2570PH/14 Implemented queue_only_load_latch.
2571
a4dc33a8
PH
2572PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2573 MAIL command. The effect was to mangle the value on 64-bit systems.
2574
d6a60c0f
PH
2575PH/16 Another patch from the Sieve maintainer.
2576
8f128379
PH
2577PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2578
8932dffe
PH
2579PH/18 If a system quota error occurred while trying to create the file for
2580 a maildir delivery, the message "Mailbox is full" was not appended to the
2581 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2582 only to a quota excession during the actual writing of the file.
d6a60c0f 2583
ddea74fa 2584PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2585 characters?) which causes problems in log lines. The DN values are now
2586 passed through string_printing() before being added to log lines.
2587
ddea74fa 2588PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2589 and InterBase are left for another time.)
2590
ddea74fa
PH
2591PH/21 Added message_body_newlines option.
2592
ce9f225c
PH
2593PH/22 Guard against possible overflow in moan_check_errorcopy().
2594
19897d52
PH
2595PH/23 POSIX allows open() to be a macro; guard against that.
2596
bc64a74d
PH
2597PH/24 If the recipient of an error message contained an @ in the local part
2598 (suitably quoted, of course), incorrect values were put in $domain and
2599 $local_part during the evaluation of errors_copy.
2600
eb4c0de6 2601
b4ed4da0
PH
2602Exim version 4.67
2603-----------------
2604
22ad45c9
MH
2605MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2606 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2607 Jan Srzednicki.
2608
b4ed4da0
PH
2609PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2610 issue a MAIL command.
2611
431b7361
PH
2612PH/02 In an ACL statement such as
2613
2614 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2615
2616 if a client was not listed at all, or was listed with a value other than
2617 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2618 the condition was not true (as it should be), so access was not denied.
2619 The bug was that the ! inversion was incorrectly passed on to the second
2620 item. This has been fixed.
2621
2622PH/03 Added additional dnslists conditions == and =& which are different from
2623 = and & when the dns lookup returns more than one IP address.
2624
83da1223
PH
2625PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2626 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2627
54fc8428
PH
2628PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2629 FSYNC, which compiles an option called disable_fsync that allows for
2630 bypassing fsync(). The documentation is heavily laced with warnings.
2631
34c5e8dd
SC
2632SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2633
bbe15da8
PH
2634PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2635 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2636 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2637 including adding "make clean"; (3) Added -fPIC when compiling the test
2638 dynamically loaded module, to get rid of a warning.
2639
0e8a9471
MH
2640MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2641 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2642 = 0s. The bug is otherwise harmless.
2643
f0872424
PH
2644PH/07 There was a bug in the dovecot authenticator such that the value of
2645 $auth1 could be overwritten, and so not correctly preserved, after a
2646 successful authentication. This usually meant that the value preserved by
2647 the server_setid option was incorrect.
2648
b01dd148
PH
2649PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2650
6bf342e1
PH
2651PH/09 Installed PCRE release 7.0.
2652
273f34d0
PH
2653PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2654 run for batched SMTP input. It is now run at the start of every message
2655 in the batch. While fixing this I discovered that the process information
2656 (output by running exiwhat) was not always getting set for -bs and -bS
2657 input. This is fixed, and it now also says "batched" for BSMTP.
2658
cf8b11a5
PH
2659PH/11 Added control=no_pipelining.
2660
41c7c167
PH
2661PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2662 patch, slightly modified), and move the expansion of helo_data till after
2663 the connection is made in the smtp transport (so it can use these
2664 values).
2665
9c57cbc0
PH
2666PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2667
f3f065bb
PH
2668PH/14 Added log_selector = +pid.
2669
047bdd8c
PH
2670PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2671
0ce9abe6
PH
2672PH/16 Add ${if forany and ${if forall.
2673
0e22dfd1
PH
2674PH/17 Added dsn_from option to vary the From: line in DSNs.
2675
4c590bd1
PH
2676PH/18 Flush SMTP output before performing a callout, unless control =
2677 no_callout_flush is set.
2678
09945f1e
PH
2679PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2680 was true (the default) a successful delivery failed to delete the retry
2681 item, thus causing premature timeout of the address. The bug is now
2682 fixed.
2683
c51b8e75
PH
2684PH/20 Added hosts_avoid_pipelining to the smtp transport.
2685
e28326d8 2686PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2687 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2688 other ACL rejections are.
2689
75b1493f
PH
2690PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2691 with slight modification.
2692
7c5214ec
PH
2693PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2694 draft, changing the syntax and factoring some duplicate code".
2695
4311097e
PH
2696PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2697 for deliveries of the second and subsequent messages over the same SMTP
2698 connection.
2699
29f89cad
PH
2700PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2701 ${reduce, with only minor "tidies".
2702
5e687460
SC
2703SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2704
c3611384
PH
2705PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2706 expansion side effects.
2707
5a11a7b4
PH
2708PH/27 When a message times out after an over-quota error from an Exim-imposed
2709 quota, the bounce message says "mailbox is full". This message was not
2710 being given when it was a system quota that was exceeded. It now should
2711 be the same.
2712
0e20aff9
MH
2713MH/03 Made $recipients available in local_scan(). local_scan() already has
2714 better access to the recipient list through recipients_list[], but
2715 $recipients can be useful in postmaster-provided expansion strings.
2716
ca86f471
PH
2717PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2718 in the case of a MAIL command with additional options following the
2719 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2720 were accidentally chopped off.
2721
a14e5636
PH
2722PH/29 SMTP synchronization checks are implemented when a command is read -
2723 there is a check that no more input is waiting when there shouldn't be
2724 any. However, for some commands, a delay in an ACL can mean that it is
2725 some time before the response is written. In this time, more input might
2726 arrive, invalidly. So now there are extra checks after an ACL has run for
2727 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2728 pipelining has not been advertised.
2729
ec95d1a6
PH
2730PH/30 MH's patch to allow iscntrl() characters to be list separators.
2731
42855d71
PH
2732PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2733 returned in the SMTP response when smtp_return_error_details was false.
2734 This has been fixed.
2735
57c2c631
PH
2736PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2737 instead of the C I/O that was originally supplied, because problems were
2738 reported on Solaris.
2739
58c01c94
PH
2740PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2741 Exim which did not show up earlier: it was assuming that a call to
2742 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2743 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2744 was a macro that became an assignment, so it seemed to work. This has
2745 changed to a proper function call with a void return, hence the compile
2746 error. Exim's code has been fixed.
2747
dee5a20a
PH
2748PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2749 cpus.
2750
d2ee6114
PH
2751PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2752
b2d5182b
PH
2753PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2754
79749a79
PH
2755PH/37 If a message is not accepted after it has had an id assigned (e.g.
2756 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2757 "Completed" line in the log. When some messages of this type were
2758 selected by exigrep, they were listed as "not completed". Others were
2759 picked up by some special patterns. I have improved the selection
2760 criteria to be more general.
79749a79 2761
c456d9bb
PH
2762PH/38 The host_find_failed option in the manualroute router can now be set
2763 to "ignore", to completely ignore a host whose IP address cannot be
2764 found. If all hosts are ignored, the behaviour is controlled by the new
2765 host_all_ignored option.
2766
cd9868ec
PH
2767PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2768 homing or because of multiple MX records with /mx) generated more than
2769 one IP address, and the following item turned out to be the local host,
2770 all the secondary addresses of the first item were incorrectly removed
2771 from the list, along with the local host and any following hosts (which
2772 is what is supposed to happen).
2773
ebeaf996
PH
2774PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2775 whoever called Exim into the -H file. In the case of the daemon it was
2776 behaving confusingly. When first started, it used values for whoever
2777 started the daemon, but after a SIGHUP it used the Exim user (because it
2778 calls itself on a restart). I have changed the code so that it now always
2779 uses the Exim user.
2780
2679d413
PH
2781PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2782 message are rejected with the same error (e.g. no authentication or bad
2783 sender address), and a DATA command is nevertheless sent (as can happen
2784 with PIPELINING or a stupid MUA), the error message that was given to the
2785 RCPT commands is included in the rejection of the DATA command. This is
2786 intended to be helpful for MUAs that show only the final error to their
2787 users.
2788
84024b72
PH
2789PH/42 Another patch from the Sieve maintainer.
2790
8005d38e
SC
2791SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2792 Eximstats - Fixed some broken HTML links and added missing column headers
2793 (Jez Hancock).
2794 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2795 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2796
3298c6c6
SC
2797SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2798
a43a27c5
PH
2799PH/43 Yet another patch from the Sieve maintainer.
2800
58eb016e 2801PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2802 the response to the final '.' that terminates a message, but only in the
2803 case where the client has not sent further data following the '.'
2804 (unfortunately, this is allowed). However, in many cases there won't be
2805 any further data because there won't be any more messages to send. A call
2806 to select() can be used: if it shows that the input is "ready", there is
2807 either input waiting, or the socket has been closed. An attempt to read
2808 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2809 would have sent an OK response which the client would never have see.
563b63fa
PH
2810 This could lead to message repetition. This fix should cure that, at
2811 least in a lot of common cases.
58eb016e 2812
b43a74ea
PH
2813PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2814 advertised in response to EHLO.
2815
b4ed4da0 2816
5dd1517f
PH
2817Exim version 4.66
2818-----------------
2819
2820PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2821 fixed by 4.65/MH/01 (is this a record?) are fixed:
2822
2823 (i) An empty string was always treated as zero by the numeric comparison
2824 operators. This behaviour has been restored.
2825
2826 (ii) It is documented that the numeric comparison operators always treat
2827 their arguments as decimal numbers. This was broken in that numbers
2828 starting with 0 were being interpreted as octal.
2829
2830 While fixing these problems I realized that there was another issue that
2831 hadn't been noticed. Values of message_size_limit (both the global option
2832 and the transport option) were treated as octal if they started with 0.
2833 The documentation was vague. These values are now always treated as
2834 decimal, and I will make that clear in the documentation.
2835
2836
93cfa765
TK
2837Exim version 4.65
2838-----------------
2839
2840TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2841 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2842 versions. (#438)
2843
d6066548
MH
2844MH/01 Don't check that the operands of numeric comparison operators are
2845 integers when their expansion is in "skipping" mode (fixes bug
2846 introduced by 4.64-PH/07).
2847
4362ff0d
PH
2848PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2849 child addresses, Exim now panics and dies. Previously, because the count
2850 is held in a short int, deliveries were likely to be lost. As such a
2851 large number of recipients for a single message is ridiculous
2852 (performance will be very, very poor), I have chosen to impose a limit
2853 rather than extend the field.
2854
93cfa765 2855
944e9e9c
TF
2856Exim version 4.64
2857-----------------
aa41d2de 2858
21d74bd9
TK
2859TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2860 leftover -K file (the existence of which was triggered by #402).
2861 While we were at it, introduced process PID as part of the -K
2862 filename. This should rule out race conditions when creating
2863 these files.
2864
2865TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2866 processing considerably. Previous code took too long for large mails,
2867 triggering a timeout which in turn triggers #401.
2868
2869TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2870 in the DK code in transports.c. sendfile() is not really portable,
2871 hence the _LINUX specificness.
944e9e9c
TF
2872
2873TF/01 In the add_headers option to the mail command in an Exim filter,
2874 there was a bug that Exim would claim a syntax error in any
2875 header after the first one which had an odd number of characters
2876 in the field name.
2877
2b1c6e3a
PH
2878PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2879 callout verification, Exim cached a "reject" for the entire domain. This
2880 is correct for most verifications, but it is not correct for a recipient
2881 verification with use_sender or use_postmaster set, because in that case
2882 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2883 case of MAIL FROM:<> rejection from other early rejections (e.g.
2884 rejection of HELO). When verifying a recipient using a non-null MAIL
2885 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2886 Whatever the result of the callout, the value of the domain cache is
2887 left unchanged (for any other kind of callout, getting as far as trying
2888 RCPT means that the domain itself is ok).
2889
1f872c80
PH
2890PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2891 gcc 4.1.1 threw up.
2892
2893PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2894 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2895 session, the daemon ignores ECONNECT errors and logs others; it now
2896 ignores EPIPE as well.
2897
d203e649
PH
2898PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2899 (quoted-printable decoding).
2900
cc2ed8f7 2901PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2902 later the small subsequent patch to fix an introduced bug.
f951fd57 2903
ddfcd446
PH
2904PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2905
d45b1de8
PH
2906PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2907
2908PH/08 An error is now given if message_size_limit is specified negative.
2909
38a0a95f 2910PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2911 to be given (somewhat) arbitrary names.
38a0a95f 2912
a2405d83
JJ
2913JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2914 in 4.64-PH/09.
2915
2916JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2917 miscellaneous code fixes
2918
6ea85e9a
PH
2919PH/10 Added the log_reject_target ACL modifier to specify where to log
2920 rejections.
2921
26da7e20
PH
2922PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2923 hostname. This is wrong, because it relates to the incoming message (and
2924 probably the interface on which it is arriving) and not to the outgoing
2925 callout (which could be using a different interface). This has been
2926 changed to use the value of the helo_data option from the smtp transport
2927 instead - this is what is used when a message is actually being sent. If
2928 there is no remote transport (possible with a router that sets up host
2929 addresses), $smtp_active_hostname is used.
6ea85e9a 2930
14aa5a05 2931PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2932 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2933 (a) The code assumed that strncpy() returns a negative number on buffer
2934 overflow, which isn't the case. Replaced with Exim's string_format()
2935 function.
2936 (b) There were several signed/unsigned issues. I just did the minimum
2937 hacking in of casts. There is scope for a larger refactoring.
2938 (c) The code used strcasecmp() which is not a standard C function.
2939 Replaced with Exim's strcmpic() function.
2940 (d) The code set only $1; it now sets $auth1 as well.
2941 (e) A simple test gave the error "authentication client didn't specify
2942 service in request". It would seem that Dovecot has changed its
2943 interface. Fortunately there's a specification; I followed it and
2944 changed what the client sends and it appears to be working now.
2945
ff75a1f7
PH
2946PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2947 decoding.
2948
e6f6568e
PH
2949PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2950 address A is aliased to B and C, where B exists and C does not. Without
2951 -v the output is "A verified" because verification stops after a
2952 successful redirection if more than one address is generated. However,
2953 with -v the child addresses are also verified. Exim was outputting "A
2954 failed to verify" and then showing the successful verification for C,
2955 with its parentage. It now outputs "B failed to verify", showing B's
2956 parentage before showing the successful verification of C.
2957
d6f6e0dc
PH
2958PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2959 look up a TXT record in a specific list after matching in a combined
2960 list.
2961
322050c2
PH
2962PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2963 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2964 they consult the DNS. I had assumed they would set it the way they
2965 wanted; and indeed my experiments on Linux seem to show that in some
2966 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2967 To be on the safe side, however, I have now made the interface to
2968 host_find_byname() similar to host_find_bydns(), with an argument
2969 containing the DNS resolver options. The host_find_byname() function now
2970 sets these options at its start, just as host_find_bydns() does. The smtp
2971 transport options dns_qualify_single and dns_search_parents are passed to
2972 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2973 of host_find_byname() use the default settings of RES_DEFNAMES
2974 (qualify_single) but not RES_DNSRCH (search_parents).
2975
08955dd3
PH
2976PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2977 spool_read_header() do less string testing, by means of a preliminary
2978 switch on the second character of optional "-foo" lines. (This is
2979 overdue, caused by the large number of possibilities that now exist.
2980 Originally there were few.) While I was there, I also converted the
2981 str(n)cmp tests so they don't re-test the leading "-" and the first
2982 character, in the hope this might squeeze out yet more improvement.
2983
1eccaa59
PH
2984PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2985 flag allowing group syntax was set by the header_syntax check but not
2986 turned off, possible causing trouble later; (2) The flag was not being
2987 set at all for the header_verify test, causing "group"-style headers to
2988 be rejected. I have now set it in this case, and also caused header_
2989 verify to ignore an empty address taken from a group. While doing this, I
2990 came across some other cases where the code for allowing group syntax
2991 while scanning a header line wasn't quite right (mostly, not resetting
2992 the flag correctly in the right place). These bugs could have caused
2993 trouble for malformed header lines. I hope it is now all correct.
2994
602e59e5
PH
2995PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2996 with the "reply" argument non-NULL. The code, however (which originally
2997 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2998 but it didn't always do it. This confused somebody who was copying the
2999 code for some other use. I have removed all the tests.
3000
411ef850
PH
3001PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3002 feature that was used to support insecure browsers during the U.S. crypto
3003 embargo. It requires special client support, and Exim is probably the
3004 only MTA that supported it -- and would never use it because real RSA is
3005 always available. This code has been removed, because it had the bad
3006 effect of slowing Exim down by computing (never used) parameters for the
3007 RSA_EXPORT functionality.
3008
7befa435
PH
3009PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3010 authenticator to fail if there's a tab character in the incoming data
3011 (there should never be unless someone is messing about, as it's supposed
3012 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3013 if the connection is using TLS or if the remote IP is the same as the
3014 local IP, and the "valid-client-cert option" if a client certificate has
3015 been verified.
3016
48da4259 3017PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3018 authenticators. This can be used for authorization after authentication
3019 succeeds. (In the case of plaintext, it servers for both authentication
3020 and authorization.)
3021
48da4259
PH
3022PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3023 if any retry times were supplied.
3024
d1d5595c
PH
3025PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3026 connection, where there is no client IP address to check. In this
3027 situation, the verify now always succeeds.
3028
0ef732d9
PH
3029PH/25 Applied John Jetmore's -Mset patch.
3030
328895cc
PH
3031PH/26 Added -bem to be like -Mset, but loading a message from a file.
3032
fd700877
PH
3033PH/27 In a string expansion for a processed (not raw) header when multiple
3034 headers of the same name were present, leading whitespace was being
3035 removed from all of them, but trailing whitespace was being removed only
3036 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3037 before concatenation. Completely empty headers in a concatenation (as
3038 before) are ignored.
fd700877 3039
8dce1a6f
PH
3040PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3041 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3042
17af4a17
PH
3043PH/29 [Removed. This was a change that I later backed out, and forgot to
3044 correct the ChangeLog entry (that I had efficiently created) before
3045 committing the later change.]
f6c332bd
PH
3046
3047PH/30 Exim was sometimes attempting to deliver messages that had suffered
3048 address errors (4xx response to RCPT) over the same connection as other
3049 messages routed to the same hosts. Such deliveries are always "forced",
3050 so retry times are not inspected. This resulted in far too many retries
3051 for the affected addresses. The effect occurred only when there were more
3052 hosts than the hosts_max_try setting in the smtp transport when it had
3053 the 4xx errors. Those hosts that it had tried were not added to the list
3054 of hosts for which the message was waiting, so if all were tried, there
3055 was no problem. Two fixes have been applied:
3056
3057 (i) If there are any address or message errors in an SMTP delivery, none
3058 of the hosts (tried or untried) are now added to the list of hosts
3059 for which the message is waiting, so the message should not be a
3060 candidate for sending over the same connection that was used for a
3061 successful delivery of some other message. This seems entirely
3062 reasonable: after all the message is NOT "waiting for some host".
3063 This is so "obvious" that I'm not sure why it wasn't done
3064 previously. Hope I haven't missed anything, but it can't do any
3065 harm, as the worst effect is to miss an optimization.
3066
3067 (ii) If, despite (i), such a delivery is accidentally attempted, the
3068 routing retry time is respected, so at least it doesn't keep
3069 hammering the server.
3070
c1114884
PH
3071PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3072 in ${readsocket because some servers need this prod.
3073
7a0743eb
PH
3074PH/32 Added some extra debug output when updating a wait-xxx database.
3075
0d85fa3f
PH
3076PH/33 The hint "could be header name not terminated by colon", which has been
3077 given for certain expansion errors for a long time, was not being given
3078 for the ${if def:h_colon_omitted{... case.
3079
1bf43b78
PH
3080PH/34 The spec says: "With one important exception, whenever a domain list is
3081 being scanned, $domain contains the subject domain." There was at least
3082 one case where this was not true.
3083
520de300
PH
3084PH/35 The error "getsockname() failed: connection reset by peer" was being
3085 written to the panic log as well as the main log, but it isn't really
3086 panic-worthy as it just means the connection died rather early on. I have
3087 removed the panic log writing for the ECONNRESET error when getsockname()
3088 fails.
3089
48c7f9e2
PH
3090PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3091 runs only) independently of the message's sender address. This meant
3092 that, if the 4xx error was in fact related to the sender, a different
3093 message to the same recipient with a different sender could confuse
4c04137d 3094 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3095 server, but other circumstances could also provoke similar problems.
3096 I have changed the default so that the retry time for these errors is now
3097 based a combination of the sender and recipient addresses. This change
3098 can be overridden by setting address_retry_include_sender=false in the
3099 smtp transport.
3100
99ea1c86
PH
3101PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3102 remote server are returned as part of bounce messages. This was not
3103 happening for LMTP over a pipe (the lmtp transport), but now it is the
3104 same for both kinds of LMTP.
3105
a2042e78
PH
3106PH/38 Despite being documented as not happening, Exim was rewriting addresses
3107 in header lines that were in fact CNAMEs. This is no longer the case.
3108
4fbcfc2e
PH
3109PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3110 and queue runs started by the daemon processed all messages. This has
3111 been fixed so that -R and -S can now usefully be given with -q<time>.
3112
aa41d2de
PH
3113PH/40 Import PCRE release 6.7 (fixes some bugs).
3114
af561417
PH
3115PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3116
3cc66b45
PH
3117PH/42 Give an error if -q is specified more than once.
3118
194cc0e4
PH
3119PH/43 Renamed the variables $interface_address and $interface_port as
3120 $received_ip_address and $received_port, to make it clear that these
3121 values apply to message reception, and not to the outgoing interface when
3122 a message is delivered. (The old names remain recognized, of course.)
3123
a401ddaa
PH
3124PH/44 There was no timeout on the connect() call when using a Unix domain
3125 socket in the ${readsocket expansion. There now is.
3126
4e88a19f
PH
3127PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3128 be meaningful with "accept".
3129
d7d7b289
SC
3130SC/01 Eximstats V1.43
3131 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3132
3133SC/02 Eximstats V1.44
3134 Use a glob alias rather than an array ref in the generated
3135 parser. This improves both readability and performance.
3136
3137SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3138 Collect SpamAssassin and rejection statistics.
3139 Don't display local sender or destination tables unless
3140 there is data to show.
3141 Added average volumes into the top table text output.
3142
3143SC/04 Eximstats V1.46
3144 Collect data on the number of addresses (recipients)
3145 as well as the number of messages.
3146
3147SC/05 Eximstats V1.47
3148 Added 'Message too big' to the list of mail rejection
3149 reasons (thanks to Marco Gaiarin).
3150
3151SC/06 Eximstats V1.48
3152 Mainlog lines which have GMT offsets and are too short to
3153 have a flag are now skipped.
3154
3155SC/07 Eximstats V1.49 (Alain Williams)
3156 Added the -emptyok flag.
3157
3158SC/08 Eximstats V1.50
3159 Fixes for obtaining the IP address from reject messages.
3160
0ea2a468
JJ
3161JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3162 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3163 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3164
3165JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3166 match 4.64-PH/13
3167
3168JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3169 are found, allow negative numbers in numeric criteria)
3170
3171JJ/06 exipick.20061117.2, added new $message_body_missing variable
3172
3173JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3174 to match changes made in 4.64-PH/43
3175
8a10f5a4
PH
3176PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3177
30e18802
PH
3178PH/47 Put in an explicit test for a DNS lookup of an address record where the
3179 "domain" is actually an IP address, and force a failure. This locks out
3180 those revolvers/nameservers that support "A-for-A" lookups, in
3181 contravention of the specifications.
3182
55728a4f
PH
3183PH/48 When a host name was looked up from an IP address, and the subsequent
3184 forward lookup of the name timed out, the host name was left in
3185 $sender_host_name, contrary to the specification.
d7d7b289 3186
d7837193
PH
3187PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3188 restricted to single-key lookups, Exim was not diagnosing an error if
3189 * or *@ was used with a query-style lookup.
3190
87054a31
PH
3191PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3192
ea2c01d2
MH
3193MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3194 long ago, but noone interested enough thought of it. Let's just say that
3195 the "1.1" means that there are some new functions that weren't there at
3196 some point in the past.
3197
e4fa6968
PH
3198PH/51 Error processing for expansion failure of helo_data from an smtp
3199 transport during callout processing was broken.
3200
56f5d9bd
PH
3201PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3202 tested/used via the -bh/-bhc/-bs options.
3203
922e1c28
PH
3204PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3205 bug, fixed in subsequent PCRE releases).
3206
21eb6e72
PH
3207PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3208 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3209
a0540757
PH
3210PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3211
944e9e9c 3212
478be7b0
SC
3213Exim version 4.63
3214-----------------
3215
3216SC/01 Use a glob alias rather than an array ref in eximstats generated
3217 parser. This improves both readability and performance.
3218
3219SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3220 Don't display local sender or destination tables in eximstats unless
3221 there is data to show.
3222 Added average volumes into the eximstats top table text output.
3223
3224SC/03 Collect data on the number of addresses (recipients) as well
3225 as the number of messages in eximstats.
3226
2b965a65
TF
3227TF/01 Correct an error in the documentation for the redirect router. Exim
3228 does (usually) call initgroups() when daemonizing.
478be7b0 3229
45b91596
PH
3230TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3231 with consistent privilege compared to when running as a daemon.
478be7b0 3232
c59f5781
TF
3233TF/03 Note in the spec that $authenticated_id is not set for local
3234 submissions from trusted users.
3235
90fc3069
TF
3236TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3237 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3238
6083aca0
TF
3239TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3240 by adding some example configuration directives to the default
3241 configuration file. A little bit of work is required to uncomment the
3242 directives and define how usernames and passwords are checked, but
3243 there is now a framework to start from.
3244
765b530f
PH
3245PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3246 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3247 without this. I don't know how relevant this is to other LDAP libraries.
3248
4e167a8c
PH
3249PH/02 Add the verb name to the "unknown ACL verb" error.
3250
4608d683
PH
3251PH/03 Magnus Holmgren's patch for filter_prepend_home.
3252
b8dc3e4a
PH
3253PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3254