Local_scan: bump the ABI major version number
[exim.git] / doc / doc-txt / ChangeLog
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1This document describes *changes* to previous versions, that might
2affect Exim's operation, with an unchanged configuration file. For new
3options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 4
4c57a40e 5
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6Exim version 4.93
7-----------------
8
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9JH/01 OpenSSL: With debug enabled output keying information sufficient, server
10 side, to decode a TLS 1.3 packet capture.
40ed89b3 11
fc243e94 12JH/02 OpenSSL: Suppress the sending of (stateful) TLS1.3 session tickets.
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13 Previously the default library behaviour applied, sending two, each in
14 its own TCP segment.
15
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16JH/03 Debug output for ACL now gives the config file name and line number for
17 each verb.
18
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19JH/04 The default received_header_text now uses the RFC 8314 tls cipher clause.
20
fe12ec88
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21JH/05 DKIM: ensure that dkim_domain elements are lowercased before use.
22
05bf16f6
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23JH/06 Fix buggy handling of autoreply bounce_return_size_limit, and a possible
24 buffer overrun for (non-chunking) other transports.
25
fc243e94
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26JH/07 GnuTLS: Our use of late (post-handshake) certificate verification, under
27 TLS1.3, means that a server rejecting a client certificate is not visible
28 to the client until the first read of encrypted data (typically the
29 response to EHLO). Add detection for that case and treat it as a failed
30 TLS connection attempt, so that the normal retry-in-clear can work (if
31 suitably configured).
32
c05bdbd6 33JB/01 Bug 2375: fix expansions of 822 addresses having comments in local-part
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34 and/or domain. Found and fixed by Jason Betts.
35
14bc9cf0
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36JH/08 Add hardening against SRV & TLSA lookups the hit CNAMEs (a nonvalid
37 configuration). If a CNAME target was not a wellformed name pattern, a
38 crash could result.
39
254f38d1
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40JH/09 Logging: Fix initial listening-on line for multiple ports for an IP when
41 the OS reports them interleaved with other addresses.
42
c09dbcfb
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43JH/10 OpenSSL: Fix aggregation of messages. Previously, when PIPELINING was
44 used both for input and for a verify callout, both encrypted, SMTP
45 responses being sent by the server could be lost. This resulted in
46 dropped connections and sometimes bounces generated by a peer sending
47 to this system.
254f38d1 48
f9fc9427
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49JH/11 Harden plaintext authenticator against a badly misconfigured client-send
50 string. Previously it was possible to cause undefined behaviour in a
51 library routine (usually a crash). Found by "zerons".
52
e6024a5e
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53JH/12 Bug 2384: fix "-bP smtp_receive_timeout". Previously it returned no
54 output.
55
1fbf41cd
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56JH/13 Bug 2386: Fix builds with Dane under LibreSSL 2.9.0 onward. Some old
57 API was removed, so update to use the newer ones.
58
3c55eef2 59JH/14 Bug 1891: Close the log file if receiving a non-smtp message, without
00c0dd4e 60 any timeout set, is taking a long time. Previously we would hang on to a
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61 rotated logfile "forever" if the input was arriving with long gaps
62 (a previous attempt to fix addressed lack, for a long time, of initial
63 input).
64
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65HS/01 Bug 2390: Use message_id for tempfile creation to avoid races in a
66 shared (NFS) environment. The length of the tempfile name is now
67 4 + 16 ("hdr.$message_exim_id") which might break on file
68 systems which restrict the file name length to lower values.
69 (It was "hdr.$pid".)
70
7d8d08c4 71HS/02 Bug 2390: Use message_id for tempfile creation to avoid races in a
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72 shared (NFS) environment.
73
7d8d08c4 74HS/03 Bug 2392: exigrep does case sensitive *option* processing (as it
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75 did for all versions <4.90). Notably -M, -m, --invert, -I may be
76 affected.
77
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78JH/15 Use unsigned when creating bitmasks in macros, to avoid build errors
79 on some platforms for bit 31.
80
d9acfc1c
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81JH/16 GnuTLS: rework ciphersuite strings under recent library versions. Thanks
82 to changes apparently associated with TLS1.3 handling some of the APIs
83 previously used were either nonfunctional or inappropriate. Strings
84 like TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM__AEAD:256
85 and TLS1.2:ECDHE_SECP256R1__RSA_SHA256__AES_128_CBC__SHA256:128 replace
86 the previous TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256 .
87 This affects log line X= elements, the $tls_{in,out}_cipher variables,
88 and the use of specific cipher names in the encrypted= ACL condition.
89
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90JH/17 OpenSSL: the default openssl_options now disables ssl_v3.
91
7a501c87
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92JH/18 GnuTLS: fix $tls_out_ocsp under hosts_request_ocsp. Previously the
93 verification result was not updated unless hosts_require_ocsp applied.
94
e5903596
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95JH/19 Bug 2398: fix listing of a named-queue. Previously, even with the option
96 queue_list_requires_admin set to false, non-admin users were denied the
97 facility.
98
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99JH/20 Bug 2389: fix server advertising of usable certificates, under GnuTLS in
100 directory-of-certs mode. Previously they were advertised despite the
101 documentation.
102
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103JH/21 The smtp transport option "hosts_noproxy_tls" is now unset by default.
104 A single TCP connection by a client will now hold a TLS connection open
105 for multiple message deliveries, by default. Previoud the default was to
106 not do so.
107
59c0959a 108JH/22 The smtp transport option "hosts_try_dane" now enables all hosts by
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109 default. If built with the facility, DANE will be used. The facility
110 SUPPORT_DANE is now enabled in the prototype build Makefile "EDITME".
111
112JH/23 The build default is now for TLS to be included; the SUPPORT_TLS define
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113 is replaced with DISABLE_TLS. Either USE_GNUTLS or (the new) USE_OPENSSL
114 must be defined and you must still, unless you define DISABLE_TLS, manage
115 the the include-dir and library-file requirements that go with that
116 choice. Non-TLS builds are still supported.
59c0959a 117
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118JH/24 Fix duplicated logging of peer name/address, on a transport connection-
119 reject under TFO.
96eb7d2a 120
efad2f41 121JH/25 The smtp transport option "hosts_try_fastopen" now enables all hosts by
4e48d56c 122 default. If the platform supports and has the facility enabled, it will
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123 be requested on all coneections.
124
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125JH/26 The PIPE_CONNECT facility is promoted from experimental status and is now
126 controlled by the build-time option SUPPORT_PIPE_CONNECT.
127
6ee11061 128PP/01 Unbreak heimdal_gssapi, broken in 4.92.
0a5441fc 129
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130JH/27 Bug 2404: Use the main-section configuration option "dsn_from" for
131 success-DSN messages. Previously the From: header was always the default
132 one for these; the option was ignored.
6ee11061 133
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134JH/28 Fix the timeout on smtp response to apply to the whole response.
135 Previously it was reset for every read, so a teergrubing peer sending
136 single bytes within the time limit could extend the connection for a
137 long time. Credit to Qualsys Security Advisory Team for the discovery.
138
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139JH/29 Fix DSN Final-Recipient: field. Previously it was the post-routing
140 delivery address, which leaked information of the results of local
141 forwarding. Change to the original envelope recipient address, per
142 standards.
143
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144JH/30 Bug 2411: Fix DSN generation when RFC 3461 failure notification is
145 requested. Previously not bounce was generated and a log entry of
146 error ignored was made.
147
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148JH/31 Avoid re-expansion in ${sort } expansion. (CVE-2019-13917)
149
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150JH/32 Introduce a general tainting mechanism for values read from the input
151 channel, and values derived from them. Refuse to expand any tainted
152 values, to catch one form of exploit.
153
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154JH/33 Bug 2413: Fix dkim_strict option. Previously the expansion result
155 was unused and the unexpanded text used for the test. Found and
156 fixed by Ruben Jenster.
157
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158JH/34 Fix crash after TLS shutdown. When the TCP/SMTP channel was left open,
159 an attempt to use a TLS library read routine dereffed a nul pointer,
160 causing a segfault.
161
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162JH/35 Bug 2409: filter out-of-spec chars from callout response before using
163 them in our smtp response.
164
9c6881f8 165JH/36 Have the general router option retry_use_local_part default to true when
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166 any of the restrictive preconditions are set (to anything). Previously it
167 was only for check_local user. The change removes one item of manual
168 configuration which is required for proper retries when a remote router
169 handles a subset of addresses for a domain.
170
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171JH/37 Appendfile: when evaluating quota use (non-quota_size_regex) take the file
172 link count into consideration.
173
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174HS/04 Fix handling of very log lines in -H files. If a -<key> <value> line
175 caused the extension of big_buffer, the following lines were ignored.
176
177JH/38 Bug 1395: Teach the DNS negative-cache about TTL value from the SOA in
178 accordance with RFC 2308. Previously there was no expiry, so a longlived
179 receive process (eg. due to ACL delays) versus a short SOA value could
180 surprise.
181
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182HS/05 Handle trailing backslash gracefully. (CVE-2019-15846)
183
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184JH/39 Promote DMARC support to mainline.
185
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186JH/40 Bug 2452: Add a References: header to DSNs.
187
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188JH/41 With GnuTLS 3.6.0 (and later) do not attempt to manage Diffie-Hellman
189 parameters. The relevant library call is documented as "Deprecated: This
190 function is unnecessary and discouraged on GnuTLS 3.6.0 or later. Since
191 3.6.0, DH parameters are negotiated following RFC7919."
192
ab0e957b 193HS/06 Change the default of dnssec_request_domains to "*"
40ed89b3 194
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195JH/42 Bug 2545: Fix CHUNKING for all RCPT commands rejected. Previously we
196 carried on and emitted a BDAT command, even when PIPELINING was not
197 active.
198
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199JH/43 Bug 2465: Fix taint-handling in dsearch lookup. Previously a nontainted
200 buffer was used for the filename, resulting in a trap when tainted
201 arguments (eg. $domain) were used.
202
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203JH/44 With OpenSSL 1.1.1 (onwards) disable renegotiation for TLS1.2 and below;
204 recommended to avoid a possible server-load attack. The feature can be
205 re-enabled via the openssl_options main cofiguration option.
206
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207JH/45 local_scan API: documented the current smtp_printf() call. This changed
208 for version 4.90 - adding a "more data" boolean to the arguments.
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209 Bumped the ABI version number also, this having been missed previously;
210 release versions 4.90 to 4.92.3 inclusive were effectively broken in
211 respect of usage of smtp_printf() by either local_scan code or libraries
212 accessed via the ${dlfunc } expansion item. Both will need coding
213 adjustment for any calls to smtp_printf() to match the new function
214 signature; a FALSE value for the new argument is always safe.
b2d54f83 215
c5040dfd 216
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217Exim version 4.92
218-----------------
219
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220JH/01 Remove code calling the customisable local_scan function, unless a new
221 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
222
223JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
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224 non-signal-safe functions being used.
225
226JH/03 Bug 2269: When presented with a received message having a stupidly large
227 number of DKIM-Signature headers, disable DKIM verification to avoid
228 a resource-consumption attack. The limit is set at twenty.
9723f966 229
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230JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
231 report of oldest_pass in ${authres } in consequence, and separate out
232 some descriptions of reasons for verification fail.
233
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234JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
235 files in the spool were present and unlocked. A queue-runner could spot
236 them, resulting in a duplicate delivery. Fix that by doing the unlock
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237 after the unlink. Investigation by Tim Stewart. Take the opportunity to
238 add more error-checking on spoolfile handling while that code is being
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239 messed with.
240
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241PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
242 No known attacks, no CVE, this is defensive hardening.
243
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244JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
245 a queue-runner could start a delivery while other operations were ongoing.
246 Cutthrough delivery was a common victim, resulting in duplicate delivery.
247 Found and investigated by Tim Stewart. Fix by using the open message data
248 file handle rather than opening another, and not locally closing it (which
249 releases a lock) for that case, while creating the temporary .eml format
250 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
251
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252JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
253 $sender_verify_failure/$recipient_verify_failure to "random".
254
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255JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
256 legitimate.
257
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258JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
259 Previously this would segfault.
260
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261JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
262 segfault.
263
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264JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
265 like zero, since the resolver should be doing this for us, But we need one
266 as a CNAME but no MX presence gets the CNAME returned; we need to check
267 that doesn't point to an MX to declare it "no MX returned" rather than
268 "error, loop". A new main option is added so the older capability of
269 following some limited number of chain links is maintained.
270
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271JH/12 Add client-ip info to non-pass iprev ${authres } lines.
272
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273JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
274 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
275 now-deprecated earlier definitions used only specified the range up to TLS
276 1.2 (in the older-version library docs).
277
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278JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
279
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280JH/15 Rework TLS client-side context management. Stop using a global, and
281 explicitly pass a context around. This enables future use of TLS for
282 connections to service-daemons (eg. malware scanning) while a client smtp
283 connection is using TLS; with cutthrough connections this is quite likely.
284
5054c4fd 285JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
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286
287JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 288
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289JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
290 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
291 Previously the "utf8" would be re-prepended for every additional message.
292
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293JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
294 Previously thery were accepted, resulting in issues when attempting to
295 forward messages to a non-supporting MTA.
296
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297PP/02 Let -n work with printing macros too, not just options.
298
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299JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
300 one parent address was copied, and bogus data was used at delivery-logging
301 time. Either a crash (after delivery) or bogus log data could result.
302 Discovery and analysis by Tim Stewart.
303
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304PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
305 Previously if the string ended mid-character, we did not insert the
306 promised '?' replacement.
307
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308PP/04 Documentation: current string operators work on bytes, not codepoints.
309
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310JH/21 Change as many as possible of the global flags into one-bit bitfields; these
311 should pack well giving a smaller memory footprint so better caching and
312 therefore performance. Group the declarations where this can't be done so
313 that the byte-sized flag variables are not interspersed among pointer
314 variables, giving a better chance of good packing by the compiler.
315
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316JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
317 non-null, to avoid issues with sites running BATV. Previously reports were
318 sent with an empty envelope sender so looked like bounces.
319
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320JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
321 The ignore_error flag wasn't being returned from the filter subprocess so
322 was not set for later routers. Investigation and fix by Matthias Kurz.
323
7ea1237c 324JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 325 and a msg:complete for the whole, when a message is manually removed using
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326 -Mrm. Developement by Matthias Kurz, hacked on by JH.
327
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328JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
329 a "Gnu special" function, asprintf() in the DB utility binary builds; I
330 hope that is portable enough.
331
570cb1bd
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332JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
333 requiring a known-CA anchor certificate; make it now rely entirely on the
334 TLSA as an anchor. Checking the name on the leaf cert against the name
335 on the A-record for the host is still done for TA (but not for EE mode).
336
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337JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
338 included in delivery lines for non-proxied connections, when compiled with
339 SUPPORT_SOCKS and running with proxy logging enabled.
340
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341JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
342 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
343 move the existing event to fire before the normal logging of message
344 failure so that custom logging is bracketed by normal logging.
345
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346JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
347 msg:fail:internal event. Developement by Matthias Kurz.
348
75c121f0 349JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 350 far too small for todays use of crypto signatures stored there. Go all
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351 the way to the max DNS message size of 64kB, even though this might be
352 overmuch for IOT constrained device use.
353
e30f4f43
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354JH/31 Fix a bad use of a copy function, which could be used to pointlessly
355 copy a string over itself. The library routine is documented as not
356 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
357
a45431fa
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358JH/32 For main options check_spool_space and check_inode_space, where the
359 platform supports 64b integers, support more than the previous 2^31 kB
360 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
361 the previous G, M, k.
362
c0fb53b7
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363JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
364 $authenticated_fail_id variable on authentication failure. Previously
365 it was unset.
366
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367JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
368 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
369 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
370 GNUTLS_SEC_PARAM_MEDIUM.
371
5a2a0989
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372JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
373 side. Previously we would continue as if no SNI had been received.
374
de6f74f2 375JH/36 Harden the handling of string-lists. When a list consisted of a sole
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376 "<" character, which should be a list-separator specification, we walked
377 off past the nul-terimation.
378
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379JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
380 causes) even when the retry time is not yet met. Previously they were
381 not, meaning that when (say) an account was over-quota and temp-rejecting,
382 and multiple senders' messages were queued, only one sender would get
383 notified on each configured delay_warning cycle.
384
aa6e77af 385JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 386
25fa0868
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387JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
388 cipher-suites, an error can be left on the stack even for a succeeding
389 accept; this results in impossible error messages when a later operation
390 actually does fail.
391
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392AM/01 Bug 2359: GnuTLS: repeat lowlevel read and write operations while they
393 return error codes indicating retry. Under TLS1.3 this becomes required.
394
395JH/40 Fix the feature-cache refresh for EXPERIMENTAL_PIPE_CONNECT. Previously
396 it only wrote the new authenticators, resulting in a lack of tracking of
397 peer changes of ESMTP extensions until the next cache flush.
518b70e9 398
56ac062a
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399JH/41 Fix the loop reading a message header line to check for integer overflow,
400 and more-often against header_maxsize. Previously a crafted message could
401 induce a crash of the recive process; now the message is cleanly rejected.
402
ae63862b
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403JH/42 Bug 2366: Fix the behaviour of the dkim_verify_signers option. It had
404 been totally disabled for all of 4.91. Discovery and fix by "Mad Alex".
405
9723f966 406
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407Exim version 4.91
408-----------------
459fca58 409
c39c8870 410GF/01 DEFER rather than ERROR on redis cluster MOVED response.
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411 When redis_servers is set to a list of > 1 element, and the Redis servers
412 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
413 case of MOVED into a DEFER case instead, thus moving the query onto the
414 next server in the list. For a cluster of N elements, all N servers must
415 be defined in redis_servers.
c39c8870 416
0800ef83
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417GF/02 Catch and remove uninitialized value warning in exiqsumm
418 Check for existence of @ARGV before looking at $ARGV[0]
419
459fca58
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420JH/01 Replace the store_release() internal interface with store_newblock(),
421 which internalises the check required to safely use the old one, plus
422 the allocate and data copy operations duplicated in both (!) of the
423 extant use locations.
424
944e8b37
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425JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
426 modifier. This matches the restriction on the commandline.
427
bbfb5dcd
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428JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
429 Previously only the last row was returned.
430
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431JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
432 we assumed that tags in the header were well-formed, and parsed the
433 element content after inspecting only the first char of the tag.
434 Assumptions at that stage could crash the receive process on malformed
435 input.
436
ce93c6d8
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437JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
438 While running the DKIM ACL we operate on the Permanent memory pool so that
439 variables created with "set" persist to the DATA ACL. Also (at any time)
440 DNS lookups that fail create cache records using the Permanent pool. But
441 expansions release any allocations made on the current pool - so a dnsdb
442 lookup expansion done in the DKIM ACL releases the memory used for the
443 DNS negative-cache, and bad things result. Solution is to switch to the
444 Main pool for expansions.
445 While we're in that code, add checks on the DNS cache during store_reset,
446 active in the testsuite.
447 Problem spotted, and debugging aided, by Wolfgang Breyha.
448
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449JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
450 When none of the hosts presented to a transport match an already-open
451 connection, close it and proceed with the list. Previously we would
452 queue the message. Spotted by Lena with Yahoo, probably involving
453 round-robin DNS.
454
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455JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
456 Previously a spurious "250 OK id=" response was appended to the proper
457 failure response.
458
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459JH/08 The "support for" informational output now, which built with Content
460 Scanning support, has a line for the malware scanner interfaces compiled
461 in. Interface can be individually included or not at build time.
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JH
462
463JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
464 by the template makefile "src/EDITME". The "STREAM" support for an older
465 ClamAV interface method is removed.
c11d665d 466
ba0e37b1
JH
467JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
468 rows affected is given instead).
469
96508de1
JH
470JH/11 The runtime Berkeley DB library version is now additionally output by
471 "exim -d -bV". Previously only the compile-time version was shown.
472
06fdb9f7
JH
473JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
474 SMTP connection. Previously, when one had more receipients than the
475 first, an abortive onward connection was made. Move to full support for
476 multiple onward connections in sequence, handling cutthrough connection
477 for all multi-message initiating connections.
478
f83a760f
JH
479JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
480 routers. Previously, a multi-recipient message would fail to match the
481 onward-connection opened for the first recipient, and cause its closure.
482
f1fed05b
JH
483JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
484 a timeout on read on a GnuTLS initiating connection, resulting in the
485 initiating connection being dropped. This mattered most when the callout
486 was marked defer_ok. Fix to keep the two timeout-detection methods
487 separate.
488
051d5efa
JH
489JH/15 Relax results from ACL control request to enable cutthrough, in
490 unsupported situations, from error to silently (except under debug)
491 ignoring. This covers use with PRDR, frozen messages, queue-only and
492 fake-reject.
493
cf3cd306
HSHR
494HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
495
744976d4
JH
496JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
497 metadata, resulting in a crash in free().
498
aab9a843 499PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 500 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 501 Broken also in d185889f4, with init system revamp.
7be14582 502
83d2a861
JH
503JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
504 Previously we abruptly closed the connection after reading a malware-
505 found indication; now we go on to read the "scan ok" response line,
506 and send a quit.
507
6741531c
JH
508JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
509 ACL. Previously, a crash would result.
510
85e03244
JH
511JH/19 Speed up macro lookups during configuration file read, by skipping non-
512 macro text after a replacement (previously it was only once per line) and
513 by skipping builtin macros when searching for an uppercase lead character.
514
c0635b6d
JH
515JH/20 DANE support moved from Experimental to mainline. The Makefile control
516 for the build is renamed.
517
b808677c
JH
518JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
519 was allocated for every new TLS startup, meaning one per message. Fix
520 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
521
6678c382
JH
522JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
523 reported the original. Fix to report (as far as possible) the ACL
524 result replacing the original.
525
dec766a1
WB
526JH/23 Fix memory leak during multi-message connections using STARTTLS under
527 OpenSSL. Certificate information is loaded for every new TLS startup,
528 and the resources needed to be freed.
529
15ae19f9
JH
530JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
531
e6532c4a
JH
532JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
533 was not propagated.
534
2556b3c6
SA
535JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
536 DATA response info to the (existing) per-recipient response info for
537 the "C=" log element. It can have useful tracking info from the
538 destination system. Patch from Simon Arlott.
539
fc8cd529
JH
540JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
541 length value. Previously this would segfault.
542
71bb51e0
HSHR
543HS/02 Support Avast multiline protoocol, this allows passing flags to
544 newer versions of the scanner.
545
e04bfa34
JH
546JH/28 Ensure that variables possibly set during message acceptance are marked
547 dead before release of memory in the daemon loop. This stops complaints
548 about them when the debug_store option is enabled. Discovered specifically
549 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
550 Do the same for the queue-runner and queue-list loops, for variables set
551 from spool message files. Do the same for the SMTP per-message loop, for
552 certain variables indirectly set in ACL operations.
e04bfa34 553
ecce6d9a
JH
554JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
555 as a multi-recipient message from a mailinglist manager). The coding had
556 an arbitrary cutoff number of characters while checking for more input;
557 enforced by writing a NUL into the buffer. This corrupted long / fast
558 input. The problem was exposed more widely when more pipelineing of SMTP
559 responses was introduced, and one Exim system was feeding another.
560 The symptom is log complaints of SMTP syntax error (NUL chars) on the
561 receiving system, and refused recipients seen by the sending system
562 (propating to people being dropped from mailing lists).
563 Discovered and pinpointed by David Carter.
564
c9cf9ac4
JH
565JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
566 replaced by the ${authresults } expansion.
567
b3b37076
JH
568JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
569
830832c9
HSHR
570HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
571 allows proper process termination in container environments.
572
f64e8b5f
JH
573JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
574 Previously the "final dot" had a newline after it; ensure it is CR,LF.
575
8f0776b5
JH
576JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
577 and "err_perm", deprecated since 4.83 when the RFC-defined words
578 "temperror" and "permerror" were introduced.
579
857eaf37
JH
580JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
581 transport-filters or DKIM-signing. The restriction was lost in the
582 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 583 Extend the restriction to also cover ARC-signing.
857eaf37 584
c85476e9
JH
585JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
586 in defer=pass mode supply a 450 to the initiator. Previously the message
587 would be spooled.
588
405074ad
PP
589PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
590 tls_require_ciphers is used as before.
591
eb445b04
HSHR
592HS/03 Malware Avast: Better match the Avast multiline protocol. Add
593 "pass_unscanned". Only tmpfails from the scanner are written to
594 the paniclog, as they may require admin intervention (permission
595 denied, license issues). Other scanner errors (like decompression
596 bombs) do not cause a paniclog entry.
ad93c40f 597
d342446f
JH
598JH/36 Fix reinitialisation of DKIM logging variable between messages.
599 Previously it was possible to log spurious information in receive log
600 lines.
601
a28050f8
JH
602JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
603 triggered odd behaviour from Outlook Express clients.
604
ddd16464
PP
605PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
606 suffix list.
607
321ef002
JH
608JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
609 since the IETF WG has not yet settled on that versus the original
610 "bare" representation.
611
3203e7ba
JH
612JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
613 Previously the millisecond value corrupted the output.
614 Fix also for syslog_pid=no and log_selector +pid, for which the pid
615 corrupted the output.
616
bbfb5dcd 617
acfc18c3
PP
618Exim version 4.90
619-----------------
620
621JH/01 Rework error string handling in TLS interface so that the caller in
622 more cases is responsible for logging. This permits library-sourced
623 string to be attached to addresses during delivery, and collapses
624 pairs of long lines into single ones.
625
856d1e16
PP
626PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
627 during configuration. Wildcards are allowed and expanded.
628
b9df1829
JH
629JH/02 Rework error string handling in DKIM to pass more info back to callers.
630 This permits better logging.
631
875512a3
JH
632JH/03 Rework the transport continued-connection mechanism: when TLS is active,
633 do not close it down and have the child transport start it up again on
634 the passed-on TCP connection. Instead, proxy the child (and any
635 subsequent ones) for TLS via a unix-domain socket channel. Logging is
636 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 637 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 638
fc3f96af
JH
639JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
640 identical IP addresses on different listening ports. Will also affect
641 "exiwhat" output.
642
98913c8e
BK
643PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
644 add noisy ifdef guards to special-case this sillyness.
645 Patch from Bernd Kuhls.
646
8d909960
JH
647JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
648 than 255 are no longer allowed.
649
7006ee24
JH
650JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
651 Disable the session-cache too, which might reduce our load. Since we
652 currrectly use a new context for every connection, both as server and
653 client, there is no benefit for these.
654 GnuTLS appears to not support tickets server-side by default (we don't
655 call gnutls_session_ticket_enable_server()) but client side is enabled
656 by default on recent versions (3.1.3 +) unless the PFS priority string
657 is used (3.2.4 +).
658
6e411084
PP
659PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
660 <https://reproducible-builds.org/specs/source-date-epoch/>.
661
4c2471ca
JH
662JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
663 the check for any unsuccessful recipients did not notice the limit, and
664 erroneously found still-pending ones.
665
4e910c01
JH
666JH/08 Pipeline CHUNKING command and data together, on kernels that support
667 MSG_MORE. Only in-clear (not on TLS connections).
668
42055a33
JH
669JH/09 Avoid using a temporary file during transport using dkim. Unless a
670 transport-filter is involved we can buffer the headers in memory for
671 creating the signature, and read the spool data file once for the
672 signature and again for transmission.
673
eeb35890
JH
674JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
675 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 676 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 677
b7d3afcf
JH
678JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
679 case where the routing stage had gathered several addresses to send to
680 a host before calling the transport for the first, we previously failed
681 to close down TLS in the old transport process before passing the TCP
682 connection to the new process. The new one sent a STARTTLS command
683 which naturally failed, giving a failed delivery and bloating the retry
684 database. Investigation and fix prototype from Wolfgang Breyha.
685
40525d07
JH
686JH/12 Fix check on SMTP command input synchronisation. Previously there were
687 false-negatives in the check that the sender had not preempted a response
688 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 689 awareness of the SMTP input buffering.
40525d07 690
f33875c3
PP
691PP/04 Add commandline_checks_require_admin option.
692 Exim drops privileges sanely, various checks such as -be aren't a
693 security problem, as long as you trust local users with access to their
694 own account. When invoked by services which pass untrusted data to
695 Exim, this might be an issue. Set this option in main configuration
696 AND make fixes to the calling application, such as using `--` to stop
697 processing options.
698
a5ffa9b4
JH
699JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
700 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
701 responses to those, into a single TLS record each way (this usually means
702 a single packet). As a side issue, smtp_enforce_sync now works on TLS
703 connections.
925ac8e4 704
6600985a
PP
705PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
706 affects you only if you're dancing at the edge of the param size limits.
707 If you are, and this message makes sense to you, then: raise the
708 configured limit or use OpenSSL 1.1. Nothing we can do for older
709 versions.
710
ac4d558b
JH
711JH/14 For the "sock" variant of the malware scanner interface, accept an empty
712 cmdline element to get the documented default one. Previously it was
713 inaccessible.
714
e69636bc
JH
715JH/15 Fix a crash in the smtp transport caused when two hosts in succession
716 are unsuable for non-message-specific reasons - eg. connection timeout,
717 banner-time rejection.
718
a843a57e
JH
719JH/16 Fix logging of delivery remote port, when specified by router, under
720 callout/hold.
721
8e041ae0
PP
722PP/06 Repair manualroute's ability to take options in any order, even if one
723 is the name of a transport.
833c70bc
PP
724 Fixes bug 2140.
725
35a04365
HSHR
726HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
727
4226691b
JH
728JH/17 Change the list-building routines interface to use the expanding-string
729 triplet model, for better allocation and copying behaviour.
730
d185889f
JH
731JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
732 Previously it was constructed the first time a possibly-matching string
733 was met in the configuration file input during startup; now it is done
734 during compilation.
735
0a6c178c
JH
736JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
737 compatible one, to avoid the (poorly documented) possibility of a config
738 file in the working directory redirecting the DB files, possibly correpting
02745400 739 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 740
fae8970d
JH
741JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
742 cache-hot. Previously, although the result was properly cached, the
743 initial verify call returned a defer.
744
ad1a76fe 745JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
746 the main verify for receipient in uncached-mode.
747
ad1a76fe
JH
748JH/22 Retire historical build files to an "unsupported" subdir. These are
749 defined as "ones for which we have no current evidence of testing".
750
135e9496
JH
751JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
752 if present. Previously it was ignored.
753
f2ed27cf
JH
754JH/24 Start using specified-initialisers in C structure init coding. This is
755 a C99 feature (it's 2017, so now considered safe).
756
7eb0e5d2
JH
757JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
758 if was a fixed-sized field and bitmask ops via macros; it is now more
759 extensible.
760
4f9f4be4
761PP/07 GitHub PR 56: Apply MariaDB build fix.
762 Patch provided by Jaroslav Škarvada.
763
dc4de9cc
PP
764PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
765 during Coverity cleanups [4.87 JH/47]
766 Diagnosis and fix provided by Michael Fischer v. Mollard.
767
ea18931d
JH
768JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
769 the right size to place the terminating semicolon on its own folded
770 line, the header hash was calculated to an incorrect value thanks to
771 the (relaxed) space the fold became.
772
0768462d 773HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
774 and confused the parent.
775
848214f7
JH
776JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
777 which could crash as a result. This could lead to undeliverable messages.
778
9e0ed81f
JH
779JH/28 Logging: "next input sent too soon" now shows where input was truncated
780 for log purposes.
781
2540f2f8
JH
782JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
783 matters on fast-turnover and PID-randomising systems, which were getting
784 out-of-order delivery.
785
e5ab0ba9
JH
786JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
787 a possibly-overlapping copy. The symptom was that "Remote host closed
788 connection in response to HELO" was logged instead of the actual 4xx
789 error for the HELO.
790
e99a3a6c
JH
791JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
792 Previously only that bufferd was discarded, resulting in SYMTP command
793 desynchronisation.
794
18067c75
JH
795JH/32 DKIM: when a message has multiple signatures matching an identity given
796 in dkim_verify_signers, run the dkim acl once for each. Previously only
797 one run was done. Bug 2189.
798
72934ba7
JH
799JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
800 "panic the current process" to "deliberately defer". The panic log is
801 still written with the problem list name; the mail and reject logs now
802 get a temp-reject line for the message that was being handled, saying
803 something like "domains check lookup or other defer". The SMTP 451
804 message is still "Temporary local problem".
805
625667b6
JH
806JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
807 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
808 freed. CVE-2017-16943.
809
810HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
811 from SMTP input. Previously it was always done; now only done for DATA
812 and not BDAT commands. CVE-2017-16944.
625667b6 813
d21bf202
JH
814JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
815 to the message (such as an overlong header line). Previously this was
816 not done and we did not exit BDAT mode. Followon from the previous item
817 though a different problem.
818
acfc18c3 819
fd047340 820Exim version 4.89
acfc18c3 821-----------------
4c57a40e 822
9427e879 823JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 824 than -2003 did; needs libidn2 in addition to libidn.
fd047340 825
7b283890
JH
826JH/02 The path option on a pipe transport is now expanded before use.
827
4c57a40e
PP
828PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
829 Patch provided by "Björn", documentation fix added too.
830
5d036699
JH
831JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
832 missing a wire-to-host endian conversion.
833
f4630439
JH
834JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
835 close after a BDAT command line could be taken as a following command,
836 giving a synch failure. Fix by only checking for synch immediately
837 before acknowledging the chunk.
838
f988ce57
JS
839PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
840 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
841 macro. Patches provided by Josh Soref.
842
bd8fbe36
JH
843JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
844 Previously we did not; the RFC seems ambiguous and VRFY is not listed
845 by IANA as a service extension. However, John Klensin suggests that we
846 should.
847
848JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
849 the dkim code may be unix-mode line endings rather than smtp wire-format
850 CRLF, so prepend a CR to any bare LF.
fd047340 851
bd8fbe36 852JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
853 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
854
bd8fbe36
JH
855JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
856 the first were themselves being wrongly included in the feed into dkim
857 processing; with most chunk sizes in use this resulted in an incorrect
858 body hash calculated value.
859
eea19017
JH
860JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
861 DKIM signature block, for verification. Although advised against by
862 standards it is specifically not ruled illegal.
863
44e6651b
JH
864JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
865
866JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
867 missing a body hash (the bh= tag).
868
869JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
870 It seems that HAProxy sends the Proxy Protocol information in clear and
871 only then does a TLS startup, so do the same.
872
873JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
874 TCP connections (such as for Spamd) unless the daemon successfully set
875 Fast Open mode on its listening sockets. This fixes breakage seen on
876 too-old kernels or those not configured for Fast Open, at the cost of
877 requiring both directions being enabled for TFO, and TFO never being used
878 by non-daemon-related Exim processes.
879
880JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
881 endings, at least on the first header line. Try to canonify any that get
882 past that check, despite the cost.
883
b6040544
JH
884JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
885 now limited to an arbitrary five deep, while parsing addresses with the
886 strip_excess_angle_brackets option enabled.
887
f700ea4d
PP
888PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
889 instead leave the unprompted TLS handshake in socket buffer for the
890 TLS library to consume.
891
da88acae
PP
892PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
893
f6ef9370
PP
894PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
895
90341c71
JH
896JH/16 Drop variables when they go out of scope. Memory management drops a whole
897 region in one operation, for speed, and this leaves assigned pointers
898 dangling. Add checks run only under the testsuite which checks all
899 variables at a store-reset and panics on a dangling pointer; add code
900 explicitly nulling out all the variables discovered. Fixes one known
901 bug: a transport crash, where a dangling pointer for $sending_ip_address
902 originally assigned in a verify callout, is re-used.
903
1ec2ab36
PP
904PP/06 Drop '.' from @INC in various Perl scripts.
905
906PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
907
908PP/08 Reduce a number of compilation warnings under clang; building with
909 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
910 should be warning-free.
911
8b2b9480
PP
912JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
913
914HS/01 Fix portability problems introduced by PP/08 for platforms where
915 realloc(NULL) is not equivalent to malloc() [SunOS et al].
916
d953610f
HSHR
917HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
918 chunk. This allows us to accept broken chunked messages. We need a more
919 general solution here.
920
7dc5f827
PP
921PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
922 already-broken messages in the queue.
923
4bb432cb
PP
924JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
925
3b1a84c8
PP
926JH/19 Fix reference counting bug in routing-generated-address tracking.
927
902fbd69 928
8d042305
JH
929Exim version 4.88
930-----------------
4c57a40e 931
9094b84b
JH
932JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
933 supports it and a size is available (ie. the sending peer gave us one).
8d042305 934
03d5892b
JH
935JH/02 The obsolete acl condition "demime" is removed (finally, after ten
936 years of being deprecated). The replacements are the ACLs
937 acl_smtp_mime and acl_not_smtp_mime.
938
4b0fe319
JH
939JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
940 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
941 or even an in-clear connection were permitted. Now, if the host lookup
942 was dnssec and dane was requested then the host is only used if the
943 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
944 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
945 if one fails this test.
946 This means that a poorly-configured remote DNS will make it incommunicado;
947 but it protects against a DNS-interception attack on it.
948
789f8a4f
JH
949JH/04 Bug 1810: make continued-use of an open smtp transport connection
950 non-noisy when a race steals the message being considered.
951
23bb6982 952JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 953 self-signed certificate for inbound TLS connections.
23bb6982 954
0bd1b1ed 955JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 956 in rewrites and routers.
0bd1b1ed 957
20b9a2dc
JH
958JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
959 and logged a warning sing 4.83; now they are a configuration file error.
960
05392bbc
JH
961JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
962 (lacking @domain). Apply the same qualification processing as RCPT.
963
1a6230a3
JH
964JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
965
cfab9d68
JH
966JH/10 Support ${sha256:} applied to a string (as well as the previous
967 certificate).
968
98c82a3d
JH
969JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
970 a cutthrough deliver is pending, as we always want to make a connection.
971 This also avoids re-routing the message when later placing the cutthrough
972 connection after a verify cache hit.
973 Do not update it with the verify result either.
974
975JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
976 when routing results in more than one destination address.
977
ae8386f0
JH
978JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
979 signing (which inhibits the cutthrough capability). Previously only
980 the presence of an option was tested; now an expansion evaluating as
981 empty is permissible (obviously it should depend only on data available
982 when the cutthrough connection is made).
983
0d9fa8c0
JH
984JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
985 the relevant preceding SMTP command did not note the pipelining mode.
986
3581f321
JH
987JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
988 Previously they were not counted.
989
ef3a1a30
JH
990JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
991 as one having no matching records. Previously we deferred the message
992 that needed the lookup.
993
4c04137d 994JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
995 distinguished as "(=".
996
1435d4b2
JH
997JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
998 for missing MX records. Previously it only worked for missing A records.
999
eea0defe
JB
1000JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
1001
1002JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
1003 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 1004
4c04137d 1005JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
1006 even for a "none" policy. Patch from Tony Meyer.
1007
1c788856
JH
1008JH/22 Fix continued use of a connection for further deliveries. If a port was
1009 specified by a router, it must also match for the delivery to be
1010 compatible.
1011
e3b1f624
JH
1012JH/23 Bug 1874: fix continued use of a connection for further deliveries.
1013 When one of the recipients of a message was unsuitable for the connection
1014 (has no matching addresses), we lost track of needing to mark it
1015 deferred. As a result mail would be lost.
1016
a57ce043
JH
1017JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
1018
f59aaaaa 1019JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
1020 takes up less space and should be simpler to maintain. Merge the ACL
1021 condition decode tables also, with similar effect.
d7bed771 1022
d1f9fb42
JH
1023JH/26 Fix problem with one_time used on a redirect router which returned the
1024 parent address unchanged. A retry would see the parent address marked as
1025 delivered, so not attempt the (identical) child. As a result mail would
1026 be lost.
1027
92b0827a
JH
1028JH/27 Fix a possible security hole, wherein a process operating with the Exim
1029 UID can gain a root shell. Credit to http://www.halfdog.net/ for
1030 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
1031 itself :(
1032
ddf1b11a
JH
1033JH/28 Enable {spool,log} filesystem space and inode checks as default.
1034 Main config options check_{log,spool}_{inodes,space} are now
1035 100 inodes, 10MB unless set otherwise in the configuration.
1036
3cc3f762
JH
1037JH/29 Fix the connection_reject log selector to apply to the connect ACL.
1038 Previously it only applied to the main-section connection policy
1039 options.
1040
ae5afa61
JH
1041JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
1042
317e40ac
PP
1043PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
1044 by me. Added RFC7919 DH primes as an alternative.
1045
8b0fb68e
PP
1046PP/02 Unbreak build via pkg-config with new hash support when crypto headers
1047 are not in the system include path.
1048
ad7fc6eb 1049JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 1050 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
1051 Exim did stdio operations after fclose. This was exposed by a recent
1052 change which nulled out the file handle after the fclose.
ad7fc6eb 1053
ee5b1e28
JH
1054JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
1055 signed directly by the cert-signing cert, rather than an intermediate
1056 OCSP-signing cert. This is the model used by LetsEncrypt.
1057
5ddc9771
JH
1058JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
1059
8d73599f
JH
1060HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
1061 an incoming connection.
1062
446415f5
HSHR
1063HS/02 Bug 1802: Do not half-close the connection after sending a request
1064 to rspamd.
1065
8e53a4fc
HSHR
1066HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
1067 fallback to "prime256v1".
8d042305 1068
87cb4a16 1069JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 1070 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
1071
1072
0d9b78be
JH
1073Exim version 4.87
1074-----------------
4c57a40e 1075
82d14d6a
JH
1076JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
1077 and 3.4.4 - once the server is enabled to respond to an OCSP request
1078 it does even when not requested, resulting in a stapling non-aware
1079 client dropping the TLS connection.
0d9b78be 1080
6c6d6e48
TF
1081TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
1082 support variable-length bit vectors. No functional change.
1083
ac881e27
TF
1084TF/02 Improve the consistency of logging incoming and outgoing interfaces.
1085 The I= interface field on outgoing lines is now after the H= remote
1086 host field, same as incoming lines. There is a separate
1087 outgoing_interface log selector which allows you to disable the
1088 outgoing I= field.
1089
c8899c20
JH
1090JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
1091 If not running log_selector +smtp_connection the mainlog would be held
1092 open indefinitely after a "too many connections" event, including to a
1093 deleted file after a log rotate. Leave the per net connection logging
1094 leaving it open for efficiency as that will be quickly detected by the
1095 check on the next write.
1096
f1b81d81
HSHR
1097HS/01 Bug 1671: Fix post transport crash.
1098 Processing the wait-<transport> messages could crash the delivery
1099 process if the message IDs didn't exist for some reason. When
1100 using 'split_spool_directory=yes' the construction of the spool
1101 file name failed already, exposing the same netto behaviour.
1102
f38917cc
JH
1103JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
1104 mime_regex ACL conditions.
1105
895fbaf2
JH
1106JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
1107 to DSN fail messages (bounces): remote IP, remote greeting, remote response
1108 to HELO, local diagnostic string.
1109
805bb5c3
JH
1110JH/05 Downgrade message for a TLS-certificate-based authentication fail from
1111 log line to debug. Even when configured with a tls authenticator many
1112 client connections are expected to not authenticate in this way, so
1113 an authenticate fail is not an error.
1114
56c2a7be
HSHR
1115HS/02 Add the Exim version string to the process info. This way exiwhat
1116 gives some more detail about the running daemon.
1117
4c04137d 1118JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
1119 matter for fast-change records such as DNSBLs.
1120
6f6dedcc
JH
1121JH/07 Bug 1678: Always record an interface option value, if set, as part of a
1122 retry record, even if constant. There may be multiple transports with
1123 different interface settings and the retry behaviour needs to be kept
1124 distinct.
1125
0f557e90
JH
1126JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
1127
1128JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
1129
ec0eb1a3
JH
1130JH/10 Bug 840: fix log_defer_output option of pipe transport
1131
41e93589
JH
1132JH/11 Bug 830: use same host for all RCPTS of a message, even under
1133 hosts_randomize. This matters a lot when combined with mua_wrapper.
1134
98b98887 1135JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
1136 ${quote_pgsql:<string>} operator.
1137
98b98887
JH
1138JH/13 Bug 1708: avoid misaligned access in cached lookup.
1139
858e91c2
JH
1140JH/14 Change header file name for freeradius-client. Relevant if compiling
1141 with Radius support; from the Gentoo tree and checked under Fedora.
1142
1143JH/15 Bug 1712: Introduce $prdr_requested flag variable
1144
6ff55e50
JH
1145JH/16 Bug 1714: Permit an empty string as expansion result for transport
1146 option transport_filter, meaning no filtering.
1147
3b957582
JB
1148JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
1149
23f3dc67
JH
1150JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
1151 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 1152 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
1153 If a server certificate is not supplied (via tls_certificate) an error is
1154 logged, and clients will find TLS connections fail on startup. Presumably
1155 they will retry in-clear.
1156 Packagers of Exim are strongly encouraged to create a server certificate
1157 at installation time.
1158
240c288f
JH
1159HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
1160 with the $config_file variable.
1161
5ef5dd52
JB
1162JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
1163 in transport context, after the attempt, and per-recipient. The latter type
1164 is per host attempted. The event data is the error message, and the errno
1165 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 1166 and the trailing two digits of the smtp 4xx response.
5ef5dd52 1167
e161710d
GF
1168GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
1169 to write to mainlog (or rejectlog, paniclog) in the window between file
1170 creation and permissions/ownership being changed. Particularly affects
1171 installations where exicyclog is run as root, rather than exim user;
1172 result is that the running daemon panics and dies.
1173
a159f203
JH
1174JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
1175
7f06582c
JH
1176JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
1177 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
1178 "pri" and "weight". Note that the previous implicit priority given by the
1179 list order is no longer honoured.
1180
4c04137d 1181JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
1182 for DKIM processing.
1183
f0989ec0
JH
1184JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
1185 by defining SUPPORT_SOCKS.
74f150bf 1186
cee5f132
JH
1187JH/26 Move PROXY support from Experimental to mainline, enabled for a build
1188 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
1189 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
1190 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 1191
8c5d388a
JH
1192JH/27 Move Internationalisation support from Experimental to mainline, enabled
1193 for a build by defining SUPPORT_I18N
1194
2d8d625b
JH
1195JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
1196 of the query string, and make ${quote_redis:} do that quoting.
1197
0cbf2b82
JH
1198JH/29 Move Events support from Experimental to mainline, enabled by default
1199 and removable for a build by defining DISABLE_EVENT.
1200
f2f2c91b
JH
1201JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
1202
ce325893
JH
1203JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
1204 cached by the daemon.
1205
de78e2d5
JH
1206JH/32 Move Redis support from Experimental to mainline, enabled for a build
1207 by defining LOOKUP_REDIS. The libhiredis library is required.
1208
379ba7d0
JH
1209JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
1210 keys are given for lookup.
1211
f444c2c7
JH
1212JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
1213 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
1214 only supported when built with TLS support. The PolarSSL SHA routines
1215 are still used when the TLS library is too old for convenient support.
f444c2c7 1216
a57b6200
JH
1217JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
1218 openssl_options), for security. OpenSSL forces this from version 1.1.0
1219 server-side so match that on older versions.
1220
07c73177 1221JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1222 allocation for $value could be released as the expansion processing
07c73177 1223 concluded, but leaving the global pointer active for it.
fa01e4f8 1224
4f6ae5c3
JH
1225JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1226 and to use the domains and local_parts ACL conditions.
1227
1bc460a6
JH
1228JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1229 incorrectly not doubled on cutthrough transmission, hence seen as a
1230 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1231 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1232 via the normal store-and-forward channel. This could result in duplicates
1233 received - but deduplicating mailstores were liable to retain only the
1234 initial truncated version.
1235
ab9152ff 1236JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1237
67e87fcf
JH
1238JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1239
ab9152ff
JH
1240JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1241 we're in there, support oversigning also; bug 1309.
1242
af483912
JH
1243JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1244
bc3c7bb7 1245HS/04 Add support for keep_environment and add_environment options.
df3def24 1246
13559da6
JH
1247JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1248 either intentional arithmetic overflow during PRNG, or testing config-
1249 induced overflows.
1250
59eaad2b
JH
1251JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1252 delivery resulted in actual delivery. Cancel cutthrough before DATA
1253 stage.
1254
f9334a28
JH
1255JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1256 rejects a recipient: pass the reject to the originator.
1257
dc8091e7
JH
1258JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1259 Many were false-positives and ignorable, but it's worth fixing the
1260 former class.
1261
dfe7d917
JH
1262JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1263 for the new environment-manipulation done at startup. Move the routines
1264 from being local to tls.c to being global via the os.c file.
1265
93cc2d6e
JH
1266JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1267 an extract embedded as result-arg for a map, the first arg for extract
1268 is unavailable so we cannot tell if this is a numbered or keyed
1269 extraction. Accept either.
1270
13559da6 1271
9c695f6d
JH
1272Exim version 4.86
1273-----------------
4c57a40e 1274
9c695f6d
JH
1275JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1276 expanded.
1277
506900af
JH
1278JH/02 The smtp transport option "multi_domain" is now expanded.
1279
ad07e9ad
JH
1280JH/03 The smtp transport now requests PRDR by default, if the server offers
1281 it.
1282
01a4a5c5 1283JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1284 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1285 can be used to disable this per-host. The build option
1286 EXPERIMENTAL_CERTNAMES is withdrawn.
1287
cb1d7830 1288JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1289 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1290 For GnuTLS, only version 3.0.20 or later.
1291
610ff438 1292JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1293 (but not required) by default. The verification status is now logged by
1294 default, for both outbound TLS and client-certificate supplying inbound
1295 TLS connections
610ff438 1296
f926e272
JH
1297JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1298 sites use this now.
1299
50dc7409
JH
1300JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1301 Status Notification (bounce) messages are now MIME format per RFC 3464.
1302 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1303 under the control of the dsn_advertise_hosts option, and routers may
1304 have a dsn_lasthop option.
1305
0f0c8159
JH
1306JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1307 default, modifiable by a malware= option. The list separator for
23763898 1308 the options can now be changed in the usual way. Bug 68.
4e71661f 1309
1ad6489e
JH
1310JH/10 The smtp_receive_timeout main option is now expanded before use.
1311
aeaf5db3
JH
1312JH/11 The incoming_interface log option now also enables logging of the
1313 local interface on delivery outgoing connections.
1314
5032d1cf
JH
1315JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1316 if the interface and destination host and port all match.
1317
7e8360e6
JH
1318JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1319 /defer_ok option.
1320
c5f280e2
AL
1321JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1322 Patch from Andrew Lewis.
1323
fd4d8871 1324JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1325 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1326 modifiers per server. Patch originally by <rommer@active.by>.
1327
1328JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1329 and remote servers. Remote servers can be IPv6 addresses, and
1330 specify a port-range.
fd4d8871 1331
23763898
JH
1332JH/17 Bug 68: The spamd_address main option now supports an optional
1333 timeout value per server.
1334
2ad78978
JH
1335JH/18 Bug 1581: Router and transport options headers_add/remove can
1336 now have the list separator specified.
1337
8a512ed5 1338JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1339 option values.
8a512ed5 1340
82c0c8ea 1341JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1342 under OpenSSL.
1343
cc00f4af
JH
1344JH/21 Support for the A6 type of dns record is withdrawn.
1345
82c0c8ea
JH
1346JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1347 rather than the verbs used.
1348
b980ed83
JH
1349JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1350 from 255 to 1024 chars.
1351
6c9ed72e
JH
1352JH/24 Verification callouts now attempt to use TLS by default.
1353
cfab9d68 1354HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1355 are generic router options now. The defaults didn't change.
50dc7409 1356
f846c8f5
JH
1357JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1358 Original patch from Alexander Shikoff, worked over by JH.
1359
fd4c285c
HSHR
1360HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1361 files if ZCAT_COMMAND is not executable.
1362
4c04137d 1363JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1364
d2a2c69b
JH
1365JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1366
8241d8dd
JH
1367JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1368 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1369 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1370 (and we were inconsistent anyway for A-only vs AAAA+A).
1371
1f12df4d
JH
1372JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1373
1f155f8e
JH
1374JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1375 when evaluating $sender_host_dnssec.
1376
1705dd20
JH
1377JH/31 Check the HELO verification lookup for DNSSEC, adding new
1378 $sender_helo_dnssec variable.
1379
038597d2
PP
1380JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1381
474f71bf
JH
1382JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1383
7137ca4b
JH
1384JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1385
dcb1095c
JH
1386JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1387 documented as working, but never had. Support all but $spam_report.
1388
2f460950
JH
1389JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1390 added for tls authenticator.
1391
2f680c0c
HSHR
1392HS/03 Add perl_taintmode main config option
1393
9c695f6d 1394
e449c3b0
TL
1395Exim version 4.85
1396-----------------
4c57a40e 1397
e449c3b0
TL
1398TL/01 When running the test suite, the README says that variables such as
1399 no_msglog_check are global and can be placed anywhere in a specific
1400 test's script, however it was observed that placement needed to be near
1401 the beginning for it to behave that way. Changed the runtest perl
1402 script to read through the entire script once to detect and set these
1403 variables, reset to the beginning of the script, and then run through
1404 the script parsing/test process like normal.
1405
ac20058f
TL
1406TL/02 The BSD's have an arc4random API. One of the functions to induce
1407 adding randomness was arc4random_stir(), but it has been removed in
1408 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1409 function when detected.
1410
a9b8ec8b
JH
1411JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1412 cause callback expansion.
1413
6286d7c4
TL
1414TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1415 syntax errors in an expansion can be treated as a string instead of
1416 logging or causing an error, due to the internal use of bool_lax
1417 instead of bool when processing it.
1418
0f06b4f2 1419JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1420 server certificates when making smtp deliveries.
1421
be36e572
JH
1422JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1423
ac4ef9bd
JH
1424JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1425
0eb51736
TL
1426TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1427
c713ca4b
TL
1428TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1429 Merged patch from Sebastian Wiedenroth.
e449c3b0 1430
bd21a787
WB
1431JH/05 Fix results-pipe from transport process. Several recipients, combined
1432 with certificate use, exposed issues where response data items split
1433 over buffer boundaries were not parsed properly. This eventually
1434 resulted in duplicates being sent. This issue only became common enough
4c04137d 1435 to notice due to the introduction of connection certificate information,
bd21a787
WB
1436 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1437
8bc732e8
JH
1438JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1439 size buffer was used, resulting in syntax errors when an expansion
1440 exceeded it.
1441
a7fec7a7
JH
1442JH/07 Add support for directories of certificates when compiled with a GnuTLS
1443 version 3.3.6 or later.
1444
4c04137d 1445JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1446 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1447 both become "event_action", the variables become $event_name, $event_data
aec45841 1448 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1449 routers, transports and related events. The tls:cert event is now also
1450 raised for inbound connections, if the main configuration event_action
1451 option is defined.
774ef2d7 1452
eca4debb
TL
1453TL/06 In test suite, disable OCSP for old versions of openssl which contained
1454 early OCSP support, but no stapling (appears to be less than 1.0.0).
1455
8d692470
JH
1456JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1457 server certificate names available under the smtp transport option
1458 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1459 matches.
1460
e9477a08
JH
1461JH/10 Time-related extraction expansions from certificates now use the main
1462 option "timezone" setting for output formatting, and are consistent
1463 between OpenSSL and GnuTLS compilations. Bug 1541.
1464
ad4c5ff9
JH
1465JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1466 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1467
1468JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1469 include certificate info, eximon was claiming there were spoolfile
1470 syntax errors.
1471
3394b36a 1472JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1473
1474JH/14 Log delivery-related information more consistently, using the sequence
1475 "H=<name> [<ip>]" wherever possible.
1476
3394b36a
TL
1477TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1478 are problematic for Debian distribution, omit them from the release
1479 tarball.
1480
ad4c5ff9
JH
1481JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1482
4c04137d 1483JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1484 Bug 1561.
1485
1486JH/17 Fix a null-indirection in certextract expansions when a nondefault
1487 output list separator was used.
1488
8bc732e8 1489
1f0ebb98
TL
1490Exim version 4.84
1491-----------------
09728d20
TL
1492TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1493 checkers that were complaining about end of non-void function with no
1494 return.
1f0ebb98 1495
a612424f 1496JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1497 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1498
1499JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1500
1501TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1502 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1503
1f0ebb98 1504
c0e56233
TF
1505Exim version 4.83
1506-----------------
1507
1508TF/01 Correctly close the server side of TLS when forking for delivery.
1509
1510 When a message was received over SMTP with TLS, Exim failed to clear up
1511 the incoming connection properly after forking off the child process to
1512 deliver the message. In some situations the subsequent outgoing
1513 delivery connection happened to have the same fd number as the incoming
1514 connection previously had. Exim would try to use TLS and fail, logging
1515 a "Bad file descriptor" error.
1516
7245734e
TF
1517TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1518 utilities have not been installed.
1519
fd5dad68
JH
1520JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1521 temporary space as the ACL may create new global variables.
1522
5428a946
TL
1523TL/01 LDAP support uses per connection or global context settings, depending
1524 upon the detected version of the libraries at build time.
1525
a3c86431
TL
1526TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1527 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1528 were a direct connection from the outside internet. PPv2 support was
1529 updated based on HAProxy spec change in May 2014.
a3c86431 1530
aa26e137
JH
1531JH/02 Add ${listextract {number}{list}{success}{fail}}.
1532
5a1b8443
WB
1533TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1534 Properly escape header and check for NULL return.
1535
72c9e342
PP
1536PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1537 not dns_use_dnssec.
1538
76f44207
WB
1539JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1540
770747fd
MFM
1541TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1542 characters in header names, implemented as a verify condition.
1543 Contributed by Michael Fischer v. Mollard.
1544
8ddef691 1545TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1546 results permerror and temperror. Previous values are deprecated but
1547 still accepted. In a future release, err_perm and err_temp will be
1548 completely removed, which will be a backward incompatibility if the
1549 ACL tests for either of these two old results. Patch contributed by
8ddef691 1550 user bes-internal on the mailing list.
c0e56233 1551
b9c2e32f
AR
1552JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1553
e45a1c37
JH
1554JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1555 selectors, in both main and reject logs.
1556
67d81c10
JH
1557JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1558 failed delivery.
1559
b1f8e4f8
JH
1560JH/07 Add malware type "sock" for talking to simple daemon.
1561
511a6c14 1562JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1563
1564JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1565 routers/transports under cutthrough routing.
214042d2 1566
51c7471d
JH
1567JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1568 numbers. Touch up "bool" conditional to keep the same definition.
1569
3695be34
TL
1570TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1571
1e06383a
TL
1572JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1573
76146973
JH
1574JH/12 Expand items in router/transport headers_add or headers_remove lists
1575 individually rather than the list as a whole. Bug 1452.
1576
1577 Required for reasonable handling of multiple headers_ options when
1578 they may be empty; requires that headers_remove items with embedded
1579 colons must have them doubled (or the list-separator changed).
1580
8c8b8274
TL
1581TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1582 view the policy declared in the DMARC record. Currently, $dmarc_status
1583 is a combined value of both the record presence and the result of the
1584 analysis.
b1f8e4f8 1585
35aba663
JH
1586JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1587
8c51eead 1588JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1589 dnslookup router and the smtp transport (applying to the forward
1590 lookup).
8c51eead 1591
deae092e
HS
1592TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1593 of ldap servers used for a specific lookup. Patch provided by Heiko
1594 Schlichting.
35aba663 1595
fd3b6a4a 1596JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1597 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1598
8d91c6dc
LT
1599TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1600 Patch submitted by Lars Timman.
1601
2b4a568d
JH
1602JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1603
d2af03f4
HS
1604TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1605 Requires trusted mode and valid format message id, aborts otherwise.
1606 Patch contributed by Heiko Schlichting.
1607
9d1c15ef
JH
1608JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1609 certextract with support for various fields. Bug 1358.
1610
44662487
JH
1611JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1612 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1613 hosts_request_ocsp.
1614
ed3bba5f 1615JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1616 operate on certificate variables to give certificate fingerprints
9ef9101c 1617 Also new ${sha256:cert_variable}.
44662487 1618
8ccd00b1
JH
1619JH/23 The PRDR feature is moved from being Experimental into the mainline.
1620
8ded8589
TL
1621TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1622 Christian Aistleitner.
1623
f2de3a33
JH
1624JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1625
6eb02f88
TL
1626TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1627 file. Patch from Wolfgang Breyha.
1628
00bff6f6
JH
1629JH/25 Expand the coverage of the delivery $host and $host_address to
1630 client authenticators run in verify callout. Bug 1476.
1631
071c51f7
JH
1632JH/26 Port service names are now accepted for tls_on_connect_ports, to
1633 align with daemon_smtp_ports. Bug 72.
1634
a6d4c44e
TF
1635TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1636 support and error reporting did not work properly.
1637
3ae173e7
ACK
1638TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1639 and is readable. Patch from Andrew Colin Kissa.
1640
c13d09b8
TL
1641TL/14 Enhance documentation of ${run expansion and how it parses the
1642 commandline after expansion, particularly in the case when an
1643 unquoted variable expansion results in an empty value.
1644
0df4ab80
JH
1645JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1646
66be95e0
PP
1647PP/02 Fix internal collision of T_APL on systems which support RFC3123
1648 by renaming away from it. Addresses GH issue 15, reported by
1649 Jasper Wallace.
1650
1bd0d12b
JH
1651JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1652
0de7239e
TL
1653TL/15 SECURITY: prevent double expansion in math comparison functions
1654 (can expand unsanitized data). Not remotely exploitable.
1655 CVE-2014-2972
1656
fd3b6a4a 1657
2c422e6f 1658Exim version 4.82
98a90c36
PP
1659-----------------
1660
1661PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1662
12f69989
PP
1663PP/02 Make -n do something, by making it not do something.
1664 When combined with -bP, the name of an option is not output.
1665
54c90be1
PP
1666PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1667 by GnuTLS.
1668
1f4a55da
PP
1669PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1670 $sender_host_name and config options to manage this, and basic check
1671 routines.
1672
13363eba 1673PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1674
66645890 1675PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1676 (Only plugin which currently uses this is kerberos4, which nobody should
1677 be using, but we should make it available and other future plugins might
1678 conceivably use it, even though it would break NAT; stuff *should* be
1679 using channel bindings instead).
66645890 1680
a3fb9793 1681PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1682 name; added for Sendmail compatibility; requires admin caller.
1683 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1684 just ignore it); requires trusted caller.
a3fb9793 1685 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1686 Bugzilla 1117.
a3fb9793 1687
d27f98fe 1688TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1689
6822b909
TL
1690TL/02 Add +smtp_confirmation as a default logging option.
1691
e7568d51
TL
1692TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1693 Patch by Magnus Holmgren from 2007-02-20.
1694
ae0e32ee 1695TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1696 Bugzilla 1283 - Spec typo.
97f42f10 1697 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1698
1699TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1700
e2658fff
TL
1701TL/06 Add Experimental DMARC support using libopendmarc libraries.
1702
83712b39
TL
1703TL/07 Fix an out of order global option causing a segfault. Reported to dev
1704 mailing list by by Dmitry Isaikin.
1705
976b7e9f
JH
1706JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1707
be4a1376
JH
1708JH/02 Support "G" suffix to numbers in ${if comparisons.
1709
ec4b68e5
PP
1710PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1711
d7148a07
NM
1712NM/01 Bugzilla 1197 - Spec typo
1713 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1714
585121e2 1715JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1716
2519e60d
TL
1717PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1718 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1719 function.
a5f239e4 1720
13d08c90
PP
1721PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1722 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1723
bef3ea7f
JH
1724JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1725 "acl {{name}{arg}...}", and optional args on acl condition
1726 "acl = name arg..."
a5f239e4 1727
846726c5
JH
1728JH/05 Permit multiple router/transport headers_add/remove lines.
1729
3a796370
JH
1730JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1731
ea722490 1732JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1733 Performance patch from Paul Fisher. Bugzilla 1262.
1734
b1b05573
JH
1735JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1736 Bugzilla 884.
1737
362145b5
JH
1738JH/09 Add $headers_added variable, with content from use of ACL modifier
1739 add_header (but not yet added to the message). Bugzilla 199.
1740
3c0a92dc
JH
1741JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1742 Pulled from Bugzilla 817 by Wolfgang Breyha.
1743
6d7c6175
PP
1744PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1745 CVE-2012-5671
e78e6ecf 1746 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1747
6f123593
JH
1748JH/11 Add A= logging on delivery lines, and a client_set_id option on
1749 authenticators.
1750
c8e2fc1e
JH
1751JH/12 Add optional authenticated_sender logging to A= and a log_selector
1752 for control.
1753
005ac57f
PP
1754PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1755
3f1df0e3
PP
1756PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1757 advertise SMTP AUTH mechanism to us, instead of a generic
1758 protocol violation error. Also, make Exim more robust to bad
1759 data from the Dovecot auth socket.
1760
67bd1ab3
TF
1761TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1762
1763 When a queue runner is handling a message, Exim first routes the
1764 recipient addresses, during which it prunes them based on the retry
1765 hints database. After that it attempts to deliver the message to
1766 any remaining recipients. It then updates the hints database using
1767 the retry rules.
1768
1769 So if a recipient address works intermittently, it can get repeatedly
1770 deferred at routing time. The retry hints record remains fresh so the
1771 address never reaches the final cutoff time.
1772
1773 This is a fairly common occurrence when a user is bumping up against
1774 their storage quota. Exim had some logic in its local delivery code
1775 to deal with this. However it did not apply to per-recipient defers
1776 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1777
1ddeb334
TF
1778 This change adds a proper retry rule check during routing so that the
1779 final cutoff time is checked against the message's age. We only do
1780 this check if there is an address retry record and there is not a
1781 domain retry record; this implies that previous attempts to handle
1782 the address had the retry_use_local_parts option turned on. We use
1783 this as an approximation for the destination being like a local
1784 delivery, as in LMTP.
67bd1ab3
TF
1785
1786 I suspect this new check makes the old local delivery cutoff check
1787 redundant, but I have not verified this so I left the code in place.
1788
326cdc37
TF
1789TF/02 Correct gecos expansion when From: is a prefix of the username.
1790
1791 Test 0254 submits a message to Exim with the header
1792
1793 Resent-From: f
1794
1795 When I ran the test suite under the user fanf2, Exim expanded
1796 the header to contain my full name, whereas it should have added
1797 a Resent-Sender: header. It erroneously treats any prefix of the
1798 username as equal to the username.
1799
1800 This change corrects that bug.
1801
f62514b3
GF
1802GF/01 DCC debug and logging tidyup
1803 Error conditions log to paniclog rather than rejectlog.
1804 Debug lines prefixed by "DCC: " to remove any ambiguity.
1805
eb505532
TF
1806TF/03 Avoid unnecessary rebuilds of lookup-related code.
1807
14c7b357
PP
1808PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1809 Bug spotted by Jeremy Harris; was flawed since initial commit.
1810 Would have resulted in OCSP responses post-SNI triggering an Exim
1811 NULL dereference and crash.
1812
94eaf700
PP
1813JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1814
6f5a440a
PP
1815PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1816 Bug detection, analysis and fix by Samuel Thibault.
1817 Bugzilla 1331, Debian bug #698092.
1818
514ee161
SC
1819SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1820
fd98a5c6
JH
1821JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1822 Server implementation by Todd Lyons, client by JH.
1823 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1824 config variable "prdr_enable" controls whether the server
1825 advertises the facility. If the client requests PRDR a new
1826 acl_data_smtp_prdr ACL is called once for each recipient, after
1827 the body content is received and before the acl_smtp_data ACL.
4c04137d 1828 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1829 on the smtp transport, and the server advertisement.
1830 Default client logging of deliveries and rejections involving
1831 PRDR are flagged with the string "PRDR".
1832
035c7f1e
PP
1833PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1834 fclose(). Diagnosis by Todd Lyons.
1835
ff284120
PP
1836PP/17 Update configure.default to handle IPv6 localhost better.
1837 Patch by Alain Williams (plus minor tweaks).
1838 Bugzilla 880.
1839
26e72755
PP
1840PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1841 This is now consistent with GnuTLS, and is now documented: the
1842 previous undocumented portable approach to treating the option as
1843 unset was to force an expansion failure. That still works, and
1844 an empty string is now equivalent.
1845
0fbd9bff
PP
1846PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1847 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1848 not performing validation itself.
1849
700d22f3
PP
1850PP/20 Added force_command boolean option to pipe transport.
1851 Patch from Nick Koston, of cPanel Inc.
1852
fcc8e047
JH
1853JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1854 Bugzilla 321, 823.
1855
4c04137d 1856TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1857
8c020188
PP
1858PP/21 Fix eximon continuous updating with timestamped log-files.
1859 Broken in a format-string cleanup in 4.80, missed when I repaired the
1860 other false fix of the same issue.
1861 Report and fix from Heiko Schlichting.
1862 Bugzilla 1363.
1863
d13cdd30
PP
1864PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1865 Report from Prashanth Katuri.
1866
e2fbf4a2
PP
1867PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1868 It's SecureTransport, so affects any MacOS clients which use the
1869 system-integrated TLS libraries, including email clients.
1870
f4c1088b
PP
1871PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1872 using a MIME ACL for non-SMTP local injection.
1873 Report and assistance in diagnosis by Warren Baker.
1874
c5c2182f
PP
1875TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1876
73431ca9
JH
1877JH/16 Fix comparisons for 64b. Bugzilla 1385.
1878
2d07a215
TL
1879TL/09 Add expansion variable $authenticated_fail_id to keep track of
1880 last id that failed so it may be referenced in subsequent ACL's.
1881
a30a8861
TL
1882TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1883 Alexander Miroch.
1884
33382dd9
TL
1885TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1886 ldap library initialization, allowing self-signed CA's to be
1887 used. Also properly sets require_cert option later in code by
1888 using NULL (global ldap config) instead of ldap handle (per
1889 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1890
046172e6
TL
1891TL/12 Enhanced documentation in the ratelimit.pl script provided in
1892 the src/util/ subdirectory.
1893
581d7bee 1894TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1895 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1896 EXPERIMENTAL_TPDA.
1897
1898TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1899 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1900 redis_servers = needs to be configured which will be used by the redis
1901 lookup. Patch from Warren Baker, of The Packet Hub.
1902
237b2cf2
TL
1903TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1904
9fc5a352
TL
1905TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1906 hostname or reverse DNS when processing a host list. Used suggestions
1907 from multiple comments on this bug.
1a7b746d 1908
b10e4ec2
TL
1909TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1910
e2cebd74
TL
1911TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1912 Missed a few lines, added it to make the runtest require no keyboard
1913 interaction.
1914
1915TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1916 contains upper case chars. Make router use caseful_local_part.
1917
2519e60d
TL
1918TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1919 support when GnuTLS has been built with p11-kit.
1920
e78e6ecf 1921
4263f395
PP
1922Exim version 4.80.1
1923-------------------
1924
1925PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1926 CVE-2012-5671
2c422e6f 1927 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1928
ea722490 1929
b1770b6e 1930Exim version 4.80
0599f9cf
PP
1931-----------------
1932
1933PP/01 Handle short writes when writing local log-files.
1934 In practice, only affects FreeBSD (8 onwards).
1935 Bugzilla 1053, with thanks to Dmitry Isaikin.
1936
23c7e742
NM
1937NM/01 Bugzilla 949 - Documentation tweak
1938
b322aac8
NM
1939NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1940 improved.
1941
4a891427
NM
1942NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1943
c1e794ba 1944PP/02 Implemented gsasl authenticator.
b322aac8 1945
97753960
PP
1946PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1947
1948PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1949 `pkg-config foo` for cflags/libs.
1950
df6303fa
PP
1951PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1952 with rest of GSASL and with heimdal_gssapi.
1953
7e6a8985
PP
1954PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1955 `pkg-config foo` for cflags/libs for the TLS implementation.
1956
f1e05cc7 1957PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1958 properties get this fed in as external SSF. A number of robustness
1959 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1960
4c287009
PP
1961PP/08 cyrus_sasl server now expands the server_realm option.
1962
b98bb9ac
PP
1963PP/09 Bugzilla 1214 - Log authentication information in reject log.
1964 Patch by Jeremy Harris.
1965
4a6a987a
PP
1966PP/10 Added dbmjz lookup type.
1967
c45dd180 1968PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1969
7db8d074
PP
1970PP/12 MAIL args handles TAB as well as SP, for better interop with
1971 non-compliant senders.
1972 Analysis and variant patch by Todd Lyons.
1973
eae0036b 1974NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1975 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1976 Patch from Dirk Mueller <dmueller@suse.com>
1977
dec5017e
PP
1978PP/13 tls_peerdn now print-escaped for spool files.
1979 Observed some $tls_peerdn in wild which contained \n, which resulted
1980 in spool file corruption.
1981
c80c5570
PP
1982PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1983 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1984 or write after TLS renegotiation, which otherwise led to messages
1985 "Got SSL error 2".
1986
076b11e2
PP
1987TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1988 as a tracking header (ie: a signed header comes before the signature).
1989 Patch from Wolfgang Breyha.
1990
5407bfff
JH
1991JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1992 comma-sep list; embedded commas doubled.
1993
9e45c72b
PP
1994JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1995
e74376d8
PP
1996PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1997 diagnostics.
1998 Report and patch from Dmitry Banschikov.
1999
4c04137d 2000PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
2001 Removed SSL_clear() after SSL_new() which led to protocol negotiation
2002 failures. We appear to now support TLS1.1+ with Exim.
2003
7be682ca
PP
2004PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
2005 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
2006 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
2007 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 2008
ef840681
PP
2009PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
2010 NULL dereference. Report and patch from Alun Jones.
2011
5bfb4cdf
PP
2012PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
2013 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
2014 Not seeing resolver debug output on NetBSD, but suspect this is a
2015 resolver implementation change.
2016
c6e95d22
PP
2017PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
2018 Left warnings. Added "eximon gdb" invocation mode.
2019
9cbad13b
PP
2020PP/21 Defaulting "accept_8bitmime" to true, not false.
2021
9ee44efb
PP
2022PP/22 Added -bw for inetd wait mode support.
2023
6a6084f8
PP
2024PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
2025 locate the relevant includes and libraries. Made this the default.
2026
12dd53c7
PP
2027PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
2028 Bugzilla 1246, report and most of solution from Tomasz Kusy.
2029
9e45c72b 2030JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
2031 This may cause build issues on older platforms.
2032
17c76198
PP
2033PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
2034 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
2035 gnutls_require_mac & gnutls_require_protocols (no longer supported).
2036 Added SNI support via GnuTLS too.
af3498d6 2037 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 2038
53947857 2039PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 2040
eae0036b 2041PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
2042 Applied second patch from Janne, implementing suggestion to default
2043 multiple-strings-in-record handling to match SPF spec.
eae0036b 2044
9e45c72b 2045JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 2046
7390e768
PP
2047PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
2048 read-only, out of scope).
2049 Patch from Wolfgang Breyha, report from Stuart Northfield.
2050
08488c86
PP
2051PP/29 Fix three issues highlighted by clang analyser static analysis.
2052 Only crash-plausible issue would require the Cambridge-specific
2053 iplookup router and a misconfiguration.
2054 Report from Marcin Mirosław.
2055
6475bd82
PP
2056PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
2057
81f91683
PP
2058PP/31 %D in printf continues to cause issues (-Wformat=security), so for
2059 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
2060 As part of this, removing so much warning spew let me fix some minor
2061 real issues in debug logging.
2062
5779e6aa
PP
2063PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
2064 assignment on my part. Fixed.
2065
3375e053
PP
2066PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
2067 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
2068 Janne Snabb (who went above and beyond: thank you).
2069
2070PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
2071 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
2072 relatively easy to get wrong. Should also expose TLS library linkage
2073 problems.
3375e053 2074
9d26b8c0
PP
2075PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
2076 64-bit ${eval} (JH/03).
2077
57eb9e91 2078PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
2079 GNU libc to support some of the 64-bit stuff, should not lead to
2080 conflicts. Defined before os.h is pulled in, so if a given platform
2081 needs to override this, it can.
2082
16880d1a
PP
2083PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
2084 protection layer was required, which is not implemented.
2085 Bugzilla 1254, patch from Wolfgang Breyha.
2086
a799883d
PP
2087PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
2088 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
2089 tls_dhparam take prime identifiers. Also unbreak combination of
2090 OpenSSL+DH_params+TLSSNI.
2091
3ecab157 2092PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 2093
0599f9cf 2094
867fcbf5
PP
2095Exim version 4.77
2096-----------------
2097
2098PP/01 Solaris build fix for Oracle's LDAP libraries.
2099 Bugzilla 1109, patch from Stephen Usher.
2100
f1a29782
TF
2101TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
2102
ab42bd23
TK
2103TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
2104 whitespace trailer
867fcbf5 2105
0ca0cf52
TF
2106TF/02 Fix a couple more cases where we did not log the error message
2107 when unlink() failed. See also change 4.74-TF/03.
2108
921b12ca
TF
2109TF/03 Make the exiwhat support code safe for signals. Previously Exim might
2110 lock up or crash if it happened to be inside a call to libc when it
2111 got a SIGUSR1 from exiwhat.
2112
2113 The SIGUSR1 handler appends the current process status to the process
2114 log which is later printed by exiwhat. It used to use the general
2115 purpose logging code to do this, but several functions it calls are
2116 not safe for signals.
2117
2118 The new output code in the SIGUSR1 handler is specific to the process
2119 log, and simple enough that it's easy to inspect for signal safety.
2120 Removing some special cases also simplifies the general logging code.
2121 Removing the spurious timestamps from the process log simplifies
2122 exiwhat.
2123
c99ce5c9
TF
2124TF/04 Improved ratelimit ACL condition.
2125
2126 The /noupdate option has been deprecated in favour of /readonly which
2127 has clearer semantics. The /leaky, /strict, and /readonly update modes
2128 are mutually exclusive. The update mode is no longer included in the
2129 database key; it just determines when the database is updated. (This
4c04137d 2130 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
2131
2132 Exim now checks that the per_* options are used with an update mode that
2133 makes sense for the current ACL. For example, when Exim is processing a
2134 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
2135 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
2136 must specify per_mail/readonly. If you omit the update mode it defaults to
2137 /leaky where that makes sense (as before) or /readonly where required.
2138
2139 The /noupdate option is now undocumented but still supported for
2140 backwards compatibility. It is equivalent to /readonly except that in
2141 ACLs where /readonly is required you may specify /leaky/noupdate or
2142 /strict/noupdate which are treated the same as /readonly.
2143
2144 A useful new feature is the /count= option. This is a generalization
2145 of the per_byte option, so that you can measure the throughput of other
2146 aggregate values. For example, the per_byte option is now equivalent
2147 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
2148
2149 The per_rcpt option has been generalized using the /count= mechanism
2150 (though it's more complicated than the per_byte equivalence). When it is
2151 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
2152 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
2153 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
2154 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
2155 Note that using per_rcpt with a non-readonly update mode in more than
2156 one ACL will cause the recipients to be double-counted. (The per_mail
2157 and per_byte options don't have this problem.)
2158
2159 The handling of very low rates has changed slightly. If the computed rate
2160 is less than the event's count (usually one) then this event is the first
2161 after a long gap. In this case the rate is set to the same as this event's
2162 count, so that the first message of a spam run is counted properly.
2163
2164 The major new feature is a mechanism for counting the rate of unique
2165 events. The new per_addr option counts the number of different
2166 recipients that someone has sent messages to in the last time period. It
2167 behaves like per_rcpt if all the recipient addresses are different, but
2168 duplicate recipient addresses do not increase the measured rate. Like
2169 the /count= option this is a general mechanism, so the per_addr option
2170 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
2171 example, measure the rate that a client uses different sender addresses
2172 with the options per_mail/unique=$sender_address. There are further
2173 details in the main documentation.
2174
3634fc25
TF
2175TF/05 Removed obsolete $Cambridge$ CVS revision strings.
2176
792e8a19
TF
2177TF/06 Removed a few PCRE remnants.
2178
5901f0ab
TF
2179TF/07 Automatically extract Exim's version number from tags in the git
2180 repository when doing development or release builds.
2181
7f2a2a43
PP
2182PP/02 Raise smtp_cmd_buffer_size to 16kB.
2183 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 2184
061b7ebd
PP
2185PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
2186 Heavily based on revision 40f9a89a from Simon Arlott's tree.
2187 Bugzilla 97.
2188
e12f8c32
PP
2189PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
2190
9e949f00 2191PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
2192 Bugzilla 1078. Patch from John Horne.
2193
2194PP/06 Stop make process more reliably on build failure.
2195 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 2196
555ae6af 2197PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
2198 Bugzilla 1089. Patch from Heiko Schlittermann.
2199
2200PP/08 Handle ${run} returning more data than OS pipe buffer size.
2201 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 2202
6f7fe114
PP
2203PP/09 Handle IPv6 addresses with SPF.
2204 Bugzilla 860. Patch from Wolfgang Breyha.
2205
c566dd90
PP
2206PP/10 GnuTLS: support TLS 1.2 & 1.1.
2207 Bugzilla 1156.
89f897c3
PP
2208 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
2209 Bugzilla 1095.
c566dd90 2210
d6cc7c78 2211PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
2212 New compile-time build option, EXPAND_LISTMATCH_RHS.
2213 New expansion conditions, "inlist", "inlisti".
2214
0d0e4455
PP
2215PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
2216
3399bb60 2217PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
2218
2219PP/14 fix log_write() format string regression from TF/03.
2220 Bugzilla 1152. Patch from Dmitry Isaikin.
2221
0ca0cf52 2222
10906672
PP
2223Exim version 4.76
2224-----------------
2225
2226PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2227
754a0503
PP
2228PP/02 Harmonised TLS library version reporting; only show if debugging.
2229 Layout now matches that introduced for other libraries in 4.74 PP/03.
2230
c0c7b2da
PP
2231PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2232
e97d1f08
PP
2233PP/04 New "dns_use_edns0" global option.
2234
084c1d8c
PP
2235PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2236 Bugzilla 1098.
2237
4e7ee012
PP
2238PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2239 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2240
c8d52a00
PP
2241TK/01 Updated PolarSSL code to 0.14.2.
2242 Bugzilla 1097. Patch from Andreas Metzler.
2243
54e7ce4a
PP
2244PP/07 Catch divide-by-zero in ${eval:...}.
2245 Fixes bugzilla 1102.
2246
5ee6f336
PP
2247PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2248 Bugzilla 1104.
2249
c8d52a00 2250TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2251 format-string attack -- SECURITY: remote arbitrary code execution.
2252
2253TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2254 time unintentionally subject to list matching rules, letting the header
2255 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2256 arbitrary string expansion). This allowed for information disclosure.
2257
2258PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2259 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2260
10906672 2261
aa097c4c
NM
2262Exim version 4.75
2263-----------------
2264
4c04137d 2265NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2266 Bugzilla 1073
2267
7f3d9eff
TF
2268TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2269 This fixes portability to compilers other than gcc, notably
2270 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2271
159f52d2
TF
2272TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2273 makefiles for portability to HP-UX and POSIX correctness.
2274
0cc9542a
PP
2275PP/01 Permit LOOKUP_foo enabling on the make command-line.
2276 Also via indented variable definition in the Makefile.
2277 (Debugging by Oliver Heesakkers).
2278
f7274286
PP
2279PP/02 Restore caching of spamd results with expanded spamd_address.
2280 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2281
7b797365
PP
2282PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2283 Improves build reliability. Fix from: Frank Elsner
2284
caacae52
NM
2285NM/02 Fix wide character breakage in the rfc2047 coding
2286 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2287
09dcaba9
NM
2288NM/03 Allow underscore in dnslist lookups
2289 Fixes bug 1026. Patch from Graeme Fowler
2290
bc19a55b
PP
2291PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2292 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2293
bd4c9759
NM
2294NM/04 Fixed exiqgrep to cope with mailq missing size issue
2295 Fixes bug 943.
2296
b72aab72
PP
2297PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2298 is logged, to avoid truncation. Patch from John Horne.
2299
2fe76745
PP
2300PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2301 Patch from Jakob Hirsch.
2302
76aa570c
PP
2303PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2304 SQL string expansion failure details.
2305 Patch from Andrey Oktyabrski.
2306
f1e5fef5
PP
2307PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2308 Patch from Simon Arlott.
2309
4d805ee9
PP
2310PP/09 New lookups functionality failed to compile on old gcc which rejects
2311 extern declarations in function scope.
2312 Patch from Oliver Fleischmann
2313
cd59ab18
PP
2314PP/10 Use sig_atomic_t for flags set from signal handlers.
2315 Check getgroups() return and improve debugging.
2316 Fixed developed for diagnosis in bug 927 (which turned out to be
2317 a kernel bug).
2318
332f5cf3
PP
2319PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2320 Patch from Mark Zealey.
2321
29cfeb94
PP
2322PP/12 Bugzilla 1056: Improved spamd server selection.
2323 Patch from Mark Zealey.
2324
660242ad
PP
2325PP/13 Bugzilla 1086: Deal with maildir quota file races.
2326 Based on patch from Heiko Schlittermann.
2327
bc4bc4c5
PP
2328PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2329 Patch from Uwe Doering, sign-off by Michael Haardt.
2330
2e64baa9
NM
2331NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2332 variable declaration deep within a block. Bug and patch from
2333 Dennis Davis.
2334
4c04137d 2335PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2336
6bac1a9a
PP
2337PP/16 Make DISABLE_DKIM build knob functional.
2338
552193f0
NM
2339NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2340 Patch by Simon Arlott
baeee2c1 2341
1b587e48
TF
2342TF/03 Fix valgrind.h portability to C89 compilers that do not support
2343 variable argument macros. Our copy now differs from upstream.
2344
aa097c4c 2345
8c07b69f
TF
2346Exim version 4.74
2347-----------------
2348
2349TF/01 Failure to get a lock on a hints database can have serious
2350 consequences so log it to the panic log.
2351
c0ea85ab
TF
2352TF/02 Log LMTP confirmation messages in the same way as SMTP,
2353 controlled using the smtp_confirmation log selector.
2354
0761d44e
TF
2355TF/03 Include the error message when we fail to unlink a spool file.
2356
0a349494
PP
2357DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2358 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2359 for maintaining out-of-tree patches for some time.
2360
2361PP/01 Bugzilla 139: Documentation and portability issues.
2362 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2363 Handle per-OS dynamic-module compilation flags.
2364
fea24b2e
PP
2365PP/02 Let /dev/null have normal permissions.
2366 The 4.73 fixes were a little too stringent and complained about the
2367 permissions on /dev/null. Exempt it from some checks.
2368 Reported by Andreas M. Kirchwitz.
2369
6545de78
PP
2370PP/03 Report version information for many libraries, including
2371 Exim version information for dynamically loaded libraries. Created
2372 version.h, now support a version extension string for distributors
2373 who patch heavily. Dynamic module ABI change.
2374
1670ef10
PP
2375PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2376 privilege escalation vulnerability whereby the Exim run-time user
2377 can cause root to append content of the attacker's choosing to
2378 arbitrary files.
2379
c0886197
PP
2380PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2381 (Wolfgang Breyha)
2382
b7487bce
PP
2383PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2384 If dropping privileges for untrusted macros, we disabled normal logging
2385 on the basis that it would fail; for the Exim run-time user, this is not
2386 the case, and it resulted in successful deliveries going unlogged.
2387 Fixed. Reported by Andreas Metzler.
2388
8c07b69f 2389
97fd1e48 2390Exim version 4.73
ed7f7860 2391-----------------
97fd1e48
PP
2392
2393PP/01 Date: & Message-Id: revert to normally being appended to a message,
2394 only prepend for the Resent-* case. Fixes regression introduced in
2395 Exim 4.70 by NM/22 for Bugzilla 607.
2396
6901c596
PP
2397PP/02 Include check_rfc2047_length in configure.default because we're seeing
2398 increasing numbers of administrators be bitten by this.
2399
a8c8d6b5
JJ
2400JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2401
77bb000f
PP
2402PP/03 Bugzilla 994: added openssl_options main configuration option.
2403
a29e5231
PP
2404PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2405
ec5a0394 2406PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2407
55c75993
PP
2408PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2409
453a6645 2410PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2411 without a peer certificate, leading to a segfault because of an
2412 assumption that peers always have certificates. Be a little more
453a6645
PP
2413 paranoid. Problem reported by Martin Tscholak.
2414
8544e77a
PP
2415PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2416 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2417 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2418 CL also introduces -bmalware, various -d+acl logging additions and
2419 more caution in buffer sizes.
8544e77a 2420
83e029d5
PP
2421PP/09 Implemented reverse_ip expansion operator.
2422
ed7f7860
PP
2423PP/10 Bugzilla 937: provide a "debug" ACL control.
2424
7d9f747b
PP
2425PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2426
4b2241d2
PP
2427PP/12 Bugzilla 973: Implement --version.
2428
10385c15
PP
2429PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2430
dbc4b90d
PP
2431PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2432
532be449
PP
2433PP/15 Bugzilla 816: support multiple condition rules on Routers.
2434
6a8de854 2435PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2436 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2437 ignore trailing whitespace.
6a8de854 2438
5dc43717
JJ
2439JJ/02 prevent non-panic DKIM error from being sent to paniclog
2440
2441JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2442 "exim" to be used
55c75993 2443
3346ab01
PP
2444PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2445 Notification from Dr Andrew Aitchison.
2446
491fab4c
PP
2447PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2448 ExtendedDetectionInfo response format.
2449 Notification from John Horne.
2450
13eb9497
PP
2451PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2452 compatible.
2453
2454PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2455 XSL and documented dependency on system catalogs, with examples of how
2456 it normally works.
2457
7f36d675
DW
2458DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2459 access.
2460
c1d94452
DW
2461DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2462 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2463 configuration file which is writeable by the Exim user or group.
2464
e2f5dc15
DW
2465DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2466 of configuration files to cover files specified with the -C option if
2467 they are going to be used with root privileges, not just the default
2468 configuration file.
2469
cd25e41d
DW
2470DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2471 option (effectively making it always true).
2472
261dc43e
DW
2473DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2474 files to be used while preserving root privileges.
2475
fa32850b
DW
2476DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2477 that rogue child processes cannot use them.
2478
79d4bc3d
PP
2479PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2480 run-time user, instead of root.
2481
43236f35 2482PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2483 Exim run-time user without dropping privileges.
2484
fb08281f
DW
2485DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2486 result string, instead of calling string_vformat() twice with the same
2487 arguments.
3346ab01 2488
74935b98
DW
2489DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2490 for other users. Others should always drop root privileges if they use
2491 -C on the command line, even for a whitelisted configure file.
2492
90b6341f
DW
2493DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2494
57730b52
ML
2495NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2496
66581d1e 2497
465e92cf
JJ
2498Exim version 4.72
2499-----------------
2500
453a6645
PP
2501JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2502 $data_path, and $header_path variables; fixed documentation bugs and
2503 typos
465e92cf 2504
453a6645
PP
2505JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2506 exipick to access non-standard spools, including the "frozen" queue
2507 (Finput)
edae0343 2508
9bd3e22c
NM
2509NM/01 Bugzilla 965: Support mysql stored procedures.
2510 Patch from Alain Williams
2511
bb576ff7
NM
2512NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2513
5a1a5845
NM
2514NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2515 Patch from Andreas Metzler
2516
981a9fad
NM
2517NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2518 Patch from Kirill Miazine
2519
7fc497ee
NM
2520NM/05 Bugzilla 671: Added umask to procmail example.
2521
1a41defa
JJ
2522JJ/03 installed exipick 20100323.0, fixing doc bug
2523
a466095c 2524NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2525 directory. Notification and patch from Dan Rosenberg.
a466095c 2526
94a6bd0b
NM
2527TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2528
2529TK/02 Improve log output when DKIM signing operation fails.
2530
2531MH/01 Treat the transport option dkim_domain as a colon separated
2532 list, not as a single string, and sign the message with each element,
2533 omitting multiple occurences of the same signer.
2534
c1b141a8
NM
2535NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2536 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2537
b26eacf1 2538NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2539 Patch by Simon Arlott
2540
179c5980 2541PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2542 MBX locking. Notification from Dan Rosenberg.
179c5980 2543
9bd3e22c 2544
7c6d71af
NM
2545Exim version 4.71
2546-----------------
2547
7d9f747b 2548TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2549
f013fb92
NM
2550NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2551
0eb8eedd
NM
2552NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2553
663ee6d9
NM
2554NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2555
177ebd9b
NM
2556NM/04 Bugzilla 915: Flag broken perl installation during build.
2557
7c6d71af 2558
210f147e
NM
2559Exim version 4.70
2560-----------------
2561
cdd3bb85 2562TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2563 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2564
2565TK/02 Write list of recipients to X-Envelope-Sender header when building
2566 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2567 Hirsch).
cdd3bb85
TK
2568
2569TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2570 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2571 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2572
2573TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2574 by Mark Daniel Reidel <mr@df.eu>.
2575
210f147e
NM
2576NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2577 When building exim an external PCRE library is now needed -
2578 PCRE is a system library on the majority of modern systems.
2579 See entry on PCRE_LIBS in EDITME file.
2580
deafd5b3
NM
2581NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2582 conversation. Added nologin parameter to request.
7d9f747b 2583 Patch contributed by Kirill Miazine.
deafd5b3 2584
089793a4
TF
2585TF/01 Do not log submission mode rewrites if they do not change the address.
2586
5f16ca82
TF
2587TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2588
dae9d94e 2589NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2590 log files in place. Contributed by Roberto Lima.
dae9d94e 2591
7d9f747b 2592NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2593
06864c44
TF
2594TF/03 Bugzilla 615: When checking the local_parts router precondition
2595 after a local_part_suffix or local_part_prefix option, Exim now
2596 does not use the address's named list lookup cache, since this
2597 contains cached lookups for the whole local part.
2598
65a7d8c3 2599NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2600 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2601
23510047 2602TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2603
7d9f747b 2604NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2605
7d8eec3a 2606NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2607 Patch provided by Jan Srzednicki.
6c588e74 2608
89dec7b6
TF
2609TF/05 Leading white space used to be stripped from $spam_report which
2610 wrecked the formatting. Now it is preserved.
5f28a6e8 2611
a99de90c
TF
2612TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2613 that they are available at delivery time.
2614
e2803e40
TF
2615TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2616
7199e1ee
TF
2617TF/08 TLS error reporting now respects the incoming_interface and
2618 incoming_port log selectors.
2619
e276e04b
TF
2620TF/09 Produce a more useful error message if an SMTP transport's hosts
2621 setting expands to an empty string.
2622
ce552449 2623NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2624 Patch provided by Phil Pennock.
ce552449 2625
e765a0f1 2626NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2627 Patch provided by Richard Godbee.
e765a0f1 2628
4f054c63 2629NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2630 acl_smtp_notquit, added index entry.
4f054c63 2631
7d9f747b
PP
2632NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2633 Patch provided by Eugene Bujak.
24c929a2 2634
7d9f747b
PP
2635NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2636 accept(). Patch provided by Maxim Dounin.
cf73943b 2637
b52bc06e 2638NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2639 Patch provided by Phil Pennock.
b52bc06e 2640
447de4b0
NM
2641NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2642
4c69d561 2643NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2644 Patch provided by Brad "anomie" Jorsch.
4c69d561 2645
d5c39246 2646NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2647 Patch provided by Dean Brooks.
9b989985 2648
0b23848a
TK
2649TK/05 Add native DKIM support (does not depend on external libraries).
2650
8f3414a1 2651NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2652 Patch provided by Graeme Fowler.
e2aacdfd 2653
fb6f955d
NM
2654NM/16 Bugzilla 851: Documentation example syntax fix.
2655
2656NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2657
7d9f747b
PP
2658NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2659 lsearch.
dbb0bf41 2660
7d9f747b
PP
2661NM/19 Bugzilla 745: TLS version reporting.
2662 Patch provided by Phil Pennock.
f3766eb5 2663
7d9f747b
PP
2664NM/20 Bugzilla 167: bool: condition support.
2665 Patch provided by Phil Pennock.
36f12725 2666
7d9f747b
PP
2667NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2668 clients. Patch provided by Phil Pennock.
e6060e2c 2669
7d9f747b
PP
2670NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2671 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2672
7d9f747b
PP
2673NM/23 Bugzilla 687: Fix misparses in eximstats.
2674 Patch provided by Heiko Schlittermann.
d5c13d66 2675
7d9f747b
PP
2676NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2677 Patch provided by Heiko Schlittermann.
b2335c0b 2678
7d9f747b 2679NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2680 plus update to original patch.
f4cd9433 2681
7d9f747b 2682NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2683
7d9f747b
PP
2684NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2685 Patch provided by David Brownlee.
8dc71ab3 2686
7d9f747b 2687NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2688
7d9f747b 2689NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2690
7d9f747b 2691NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2692
7d9f747b 2693NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2694
17792b53 2695NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2696 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2697
7d9f747b
PP
2698NM/33 Bugzilla 898: Transport filter timeout fix.
2699 Patch by Todd Rinaldo.
52383f8f 2700
91576cec 2701NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2702 Patch by Serge Demonchaux.
5ca6d115 2703
7d9f747b
PP
2704NM/35 Bugzilla 39: Base64 decode bug fixes.
2705 Patch by Jakob Hirsch.
baee9eee 2706
7d9f747b 2707NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2708
7d9f747b 2709NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2710
7d9f747b 2711NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2712
7d9f747b 2713NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2714
deafd5b3 2715
47db1125
NM
2716Exim version 4.69
2717-----------------
2718
4b3504d0
TK
2719TK/01 Add preliminary DKIM support. Currently requires a forked version of
2720 ALT-N's libdkim that I have put here:
2721 http://duncanthrax.net/exim-experimental/
2722
2723 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2724 were called 'true' and it seems that C99 defines that as a reserved
2725 keyword to be used with 'bool' variable types. That means you could
2726 not include C99-style headers which use bools without triggering
2727 build errors in sieve.c.
2728
81ea09ca
NM
2729NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2730 as mailq or other aliases. Changed the --help handling significantly
2731 to do whats expected. exim_usage() emits usage/help information.
2732
f13cddcb
SC
2733SC/01 Added the -bylocaldomain option to eximstats.
2734
7d9f747b 2735NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2736
7d9f747b 2737NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2738
7d9f747b 2739NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2740
2741
eb4c0de6
PH
2742Exim version 4.68
2743-----------------
2744
2745PH/01 Another patch from the Sieve maintainer.
2746
6a3bceb1
PH
2747PH/02 When an IPv6 address is converted to a string for single-key lookup
2748 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2749 dots are used instead of colons so that keys in lsearch files need not
2750 contain colons. This was done some time before quoting was made available
2751 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2752 (notated using the quote facility) so as to distinguish them from IPv4
2753 keys. This meant that lookups for IP addresses in host lists did not work
2754 for iplsearch lookups.
2755
2756 This has been fixed by arranging for IPv6 addresses to be expressed with
2757 colons if the lookup type is iplsearch. This is not incompatible, because
2758 previously such lookups could never work.
2759
4c04137d 2760 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2761 ordinary lsearch keys. However, making the change in all cases is
2762 incompatible and would probably break a number of configurations.
2763
2e30fa9d
TK
2764TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2765 version.
2766
0806a9c5
MH
2767MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2768 conversion specification without a maximum field width, thereby enabling
2769 a rogue spamd server to cause a buffer overflow. While nobody in their
2770 right mind would setup Exim to query an untrusted spamd server, an
2771 attacker that gains access to a server running spamd could potentially
2772 exploit this vulnerability to run arbitrary code as the Exim user.
2773
ae276964
TK
2774TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2775 $primary_hostname instead of what libspf2 thinks the hosts name is.
2776
0f2cbd1b
MH
2777MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2778 a directory entry by the name of the lookup key. Previously, if a
2779 symlink pointed to a non-existing file or a file in a directory that
2780 Exim lacked permissions to read, a lookup for a key matching that
2781 symlink would fail. Now it is enough that a matching directory entry
2782 exists, symlink or not. (Bugzilla 503.)
2783
2b85bce7
PH
2784PH/03 The body_linecount and body_zerocount variables are now exported in the
2785 local_scan API.
2786
93655c46
PH
2787PH/04 Added the $dnslist_matched variable.
2788
6c512171
PH
2789PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2790 This means they are set thereafter only if the connection becomes
2791 encrypted.
2792
2793PH/06 Added the client_condition to authenticators so that some can be skipped
2794 by clients under certain conditions.
2795
aa6dc513
PH
2796PH/07 The error message for a badly-placed control=no_multiline_responses left
2797 "_responses" off the end of the name.
2798
a96603a0
PH
2799PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2800
8f240103
PH
2801PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2802 (without spaces) instead of just copying the configuration text.
2803
2804PH/10 Added the /noupdate option to the ratelimit ACL condition.
2805
d677b2f2
PH
2806PH/11 Added $max_received_linelength.
2807
d52120f2
PH
2808PH/12 Added +ignore_defer and +include_defer to host lists.
2809
64f2600a
PH
2810PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2811 way in which PCRE > 7.0 is built.
2812
8669f003
PH
2813PH/14 Implemented queue_only_load_latch.
2814
a4dc33a8
PH
2815PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2816 MAIL command. The effect was to mangle the value on 64-bit systems.
2817
d6a60c0f
PH
2818PH/16 Another patch from the Sieve maintainer.
2819
8f128379
PH
2820PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2821
8932dffe
PH
2822PH/18 If a system quota error occurred while trying to create the file for
2823 a maildir delivery, the message "Mailbox is full" was not appended to the
2824 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2825 only to a quota excession during the actual writing of the file.
d6a60c0f 2826
ddea74fa 2827PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2828 characters?) which causes problems in log lines. The DN values are now
2829 passed through string_printing() before being added to log lines.
2830
ddea74fa 2831PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2832 and InterBase are left for another time.)
2833
ddea74fa
PH
2834PH/21 Added message_body_newlines option.
2835
ce9f225c
PH
2836PH/22 Guard against possible overflow in moan_check_errorcopy().
2837
19897d52
PH
2838PH/23 POSIX allows open() to be a macro; guard against that.
2839
bc64a74d
PH
2840PH/24 If the recipient of an error message contained an @ in the local part
2841 (suitably quoted, of course), incorrect values were put in $domain and
2842 $local_part during the evaluation of errors_copy.
2843
eb4c0de6 2844
b4ed4da0
PH
2845Exim version 4.67
2846-----------------
2847
22ad45c9
MH
2848MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2849 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2850 Jan Srzednicki.
2851
b4ed4da0
PH
2852PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2853 issue a MAIL command.
2854
431b7361
PH
2855PH/02 In an ACL statement such as
2856
2857 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2858
2859 if a client was not listed at all, or was listed with a value other than
2860 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2861 the condition was not true (as it should be), so access was not denied.
2862 The bug was that the ! inversion was incorrectly passed on to the second
2863 item. This has been fixed.
2864
2865PH/03 Added additional dnslists conditions == and =& which are different from
2866 = and & when the dns lookup returns more than one IP address.
2867
83da1223
PH
2868PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2869 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2870
54fc8428
PH
2871PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2872 FSYNC, which compiles an option called disable_fsync that allows for
2873 bypassing fsync(). The documentation is heavily laced with warnings.
2874
34c5e8dd
SC
2875SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2876
bbe15da8
PH
2877PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2878 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2879 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2880 including adding "make clean"; (3) Added -fPIC when compiling the test
2881 dynamically loaded module, to get rid of a warning.
2882
0e8a9471
MH
2883MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2884 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2885 = 0s. The bug is otherwise harmless.
2886
f0872424
PH
2887PH/07 There was a bug in the dovecot authenticator such that the value of
2888 $auth1 could be overwritten, and so not correctly preserved, after a
2889 successful authentication. This usually meant that the value preserved by
2890 the server_setid option was incorrect.
2891
b01dd148
PH
2892PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2893
6bf342e1
PH
2894PH/09 Installed PCRE release 7.0.
2895
273f34d0
PH
2896PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2897 run for batched SMTP input. It is now run at the start of every message
2898 in the batch. While fixing this I discovered that the process information
2899 (output by running exiwhat) was not always getting set for -bs and -bS
2900 input. This is fixed, and it now also says "batched" for BSMTP.
2901
cf8b11a5
PH
2902PH/11 Added control=no_pipelining.
2903
41c7c167
PH
2904PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2905 patch, slightly modified), and move the expansion of helo_data till after
2906 the connection is made in the smtp transport (so it can use these
2907 values).
2908
9c57cbc0
PH
2909PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2910
f3f065bb
PH
2911PH/14 Added log_selector = +pid.
2912
047bdd8c
PH
2913PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2914
0ce9abe6
PH
2915PH/16 Add ${if forany and ${if forall.
2916
0e22dfd1
PH
2917PH/17 Added dsn_from option to vary the From: line in DSNs.
2918
4c590bd1
PH
2919PH/18 Flush SMTP output before performing a callout, unless control =
2920 no_callout_flush is set.
2921
09945f1e
PH
2922PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2923 was true (the default) a successful delivery failed to delete the retry
2924 item, thus causing premature timeout of the address. The bug is now
2925 fixed.
2926
c51b8e75
PH
2927PH/20 Added hosts_avoid_pipelining to the smtp transport.
2928
e28326d8 2929PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2930 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2931 other ACL rejections are.
2932
75b1493f
PH
2933PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2934 with slight modification.
2935
7c5214ec
PH
2936PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2937 draft, changing the syntax and factoring some duplicate code".
2938
4311097e
PH
2939PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2940 for deliveries of the second and subsequent messages over the same SMTP
2941 connection.
2942
29f89cad
PH
2943PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2944 ${reduce, with only minor "tidies".
2945
5e687460
SC
2946SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2947
c3611384
PH
2948PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2949 expansion side effects.
2950
5a11a7b4
PH
2951PH/27 When a message times out after an over-quota error from an Exim-imposed
2952 quota, the bounce message says "mailbox is full". This message was not
2953 being given when it was a system quota that was exceeded. It now should
2954 be the same.
2955
0e20aff9
MH
2956MH/03 Made $recipients available in local_scan(). local_scan() already has
2957 better access to the recipient list through recipients_list[], but
2958 $recipients can be useful in postmaster-provided expansion strings.
2959
ca86f471
PH
2960PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2961 in the case of a MAIL command with additional options following the
2962 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2963 were accidentally chopped off.
2964
a14e5636
PH
2965PH/29 SMTP synchronization checks are implemented when a command is read -
2966 there is a check that no more input is waiting when there shouldn't be
2967 any. However, for some commands, a delay in an ACL can mean that it is
2968 some time before the response is written. In this time, more input might
2969 arrive, invalidly. So now there are extra checks after an ACL has run for
2970 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2971 pipelining has not been advertised.
2972
ec95d1a6
PH
2973PH/30 MH's patch to allow iscntrl() characters to be list separators.
2974
42855d71
PH
2975PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2976 returned in the SMTP response when smtp_return_error_details was false.
2977 This has been fixed.
2978
57c2c631
PH
2979PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2980 instead of the C I/O that was originally supplied, because problems were
2981 reported on Solaris.
2982
58c01c94
PH
2983PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2984 Exim which did not show up earlier: it was assuming that a call to
2985 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2986 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2987 was a macro that became an assignment, so it seemed to work. This has
2988 changed to a proper function call with a void return, hence the compile
2989 error. Exim's code has been fixed.
2990
dee5a20a
PH
2991PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2992 cpus.
2993
d2ee6114
PH
2994PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2995
b2d5182b
PH
2996PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2997
79749a79
PH
2998PH/37 If a message is not accepted after it has had an id assigned (e.g.
2999 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
3000 "Completed" line in the log. When some messages of this type were
3001 selected by exigrep, they were listed as "not completed". Others were
3002 picked up by some special patterns. I have improved the selection
3003 criteria to be more general.
79749a79 3004
c456d9bb
PH
3005PH/38 The host_find_failed option in the manualroute router can now be set
3006 to "ignore", to completely ignore a host whose IP address cannot be
3007 found. If all hosts are ignored, the behaviour is controlled by the new
3008 host_all_ignored option.
3009
cd9868ec
PH
3010PH/39 In a list of hosts for manualroute, if one item (either because of multi-
3011 homing or because of multiple MX records with /mx) generated more than
3012 one IP address, and the following item turned out to be the local host,
3013 all the secondary addresses of the first item were incorrectly removed
3014 from the list, along with the local host and any following hosts (which
3015 is what is supposed to happen).
3016
ebeaf996
PH
3017PH/40 When Exim receives a message, it writes the login name, uid, and gid of
3018 whoever called Exim into the -H file. In the case of the daemon it was
3019 behaving confusingly. When first started, it used values for whoever
3020 started the daemon, but after a SIGHUP it used the Exim user (because it
3021 calls itself on a restart). I have changed the code so that it now always
3022 uses the Exim user.
3023
2679d413
PH
3024PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
3025 message are rejected with the same error (e.g. no authentication or bad
3026 sender address), and a DATA command is nevertheless sent (as can happen
3027 with PIPELINING or a stupid MUA), the error message that was given to the
3028 RCPT commands is included in the rejection of the DATA command. This is
3029 intended to be helpful for MUAs that show only the final error to their
3030 users.
3031
84024b72
PH
3032PH/42 Another patch from the Sieve maintainer.
3033
8005d38e
SC
3034SC/02 Eximstats - Differentiate between permanent and temporary rejects.
3035 Eximstats - Fixed some broken HTML links and added missing column headers
3036 (Jez Hancock).
3037 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
3038 columns for Rejects, Temp Rejects, Ham, and Spam rows.
3039
3298c6c6
SC
3040SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
3041
a43a27c5
PH
3042PH/43 Yet another patch from the Sieve maintainer.
3043
58eb016e 3044PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
3045 the response to the final '.' that terminates a message, but only in the
3046 case where the client has not sent further data following the '.'
3047 (unfortunately, this is allowed). However, in many cases there won't be
3048 any further data because there won't be any more messages to send. A call
3049 to select() can be used: if it shows that the input is "ready", there is
3050 either input waiting, or the socket has been closed. An attempt to read
3051 the next input character can distinguish the two cases. Previously, Exim
58eb016e 3052 would have sent an OK response which the client would never have see.
563b63fa
PH
3053 This could lead to message repetition. This fix should cure that, at
3054 least in a lot of common cases.
58eb016e 3055
b43a74ea
PH
3056PH/45 Do not advertise STARTTLS in response to HELP unless it would be
3057 advertised in response to EHLO.
3058
b4ed4da0 3059
5dd1517f
PH
3060Exim version 4.66
3061-----------------
3062
3063PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
3064 fixed by 4.65/MH/01 (is this a record?) are fixed:
3065
3066 (i) An empty string was always treated as zero by the numeric comparison
3067 operators. This behaviour has been restored.
3068
3069 (ii) It is documented that the numeric comparison operators always treat
3070 their arguments as decimal numbers. This was broken in that numbers
3071 starting with 0 were being interpreted as octal.
3072
3073 While fixing these problems I realized that there was another issue that
3074 hadn't been noticed. Values of message_size_limit (both the global option
3075 and the transport option) were treated as octal if they started with 0.
3076 The documentation was vague. These values are now always treated as
3077 decimal, and I will make that clear in the documentation.
3078
3079
93cfa765
TK
3080Exim version 4.65
3081-----------------
3082
3083TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
3084 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
3085 versions. (#438)
3086
d6066548
MH
3087MH/01 Don't check that the operands of numeric comparison operators are
3088 integers when their expansion is in "skipping" mode (fixes bug
3089 introduced by 4.64-PH/07).
3090
4362ff0d
PH
3091PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
3092 child addresses, Exim now panics and dies. Previously, because the count
3093 is held in a short int, deliveries were likely to be lost. As such a
3094 large number of recipients for a single message is ridiculous
3095 (performance will be very, very poor), I have chosen to impose a limit
3096 rather than extend the field.
3097
93cfa765 3098
944e9e9c
TF
3099Exim version 4.64
3100-----------------
aa41d2de 3101
21d74bd9
TK
3102TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
3103 leftover -K file (the existence of which was triggered by #402).
3104 While we were at it, introduced process PID as part of the -K
3105 filename. This should rule out race conditions when creating
3106 these files.
3107
3108TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
3109 processing considerably. Previous code took too long for large mails,
3110 triggering a timeout which in turn triggers #401.
3111
3112TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
3113 in the DK code in transports.c. sendfile() is not really portable,
3114 hence the _LINUX specificness.
944e9e9c
TF
3115
3116TF/01 In the add_headers option to the mail command in an Exim filter,
3117 there was a bug that Exim would claim a syntax error in any
3118 header after the first one which had an odd number of characters
3119 in the field name.
3120
2b1c6e3a
PH
3121PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
3122 callout verification, Exim cached a "reject" for the entire domain. This
3123 is correct for most verifications, but it is not correct for a recipient
3124 verification with use_sender or use_postmaster set, because in that case
3125 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
3126 case of MAIL FROM:<> rejection from other early rejections (e.g.
3127 rejection of HELO). When verifying a recipient using a non-null MAIL
3128 address, the cache is ignored if it shows MAIL FROM:<> rejection.
3129 Whatever the result of the callout, the value of the domain cache is
3130 left unchanged (for any other kind of callout, getting as far as trying
3131 RCPT means that the domain itself is ok).
3132
1f872c80
PH
3133PH/02 Tidied a number of unused variable and signed/unsigned warnings that
3134 gcc 4.1.1 threw up.
3135
3136PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
3137 manifest itself as EPIPE rather than ECONNECT. When tidying away a
3138 session, the daemon ignores ECONNECT errors and logs others; it now
3139 ignores EPIPE as well.
3140
d203e649
PH
3141PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
3142 (quoted-printable decoding).
3143
cc2ed8f7 3144PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 3145 later the small subsequent patch to fix an introduced bug.
f951fd57 3146
ddfcd446
PH
3147PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
3148
d45b1de8
PH
3149PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
3150
3151PH/08 An error is now given if message_size_limit is specified negative.
3152
38a0a95f 3153PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 3154 to be given (somewhat) arbitrary names.
38a0a95f 3155
a2405d83
JJ
3156JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
3157 in 4.64-PH/09.
3158
3159JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
3160 miscellaneous code fixes
3161
6ea85e9a
PH
3162PH/10 Added the log_reject_target ACL modifier to specify where to log
3163 rejections.
3164
26da7e20
PH
3165PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
3166 hostname. This is wrong, because it relates to the incoming message (and
3167 probably the interface on which it is arriving) and not to the outgoing
3168 callout (which could be using a different interface). This has been
3169 changed to use the value of the helo_data option from the smtp transport
3170 instead - this is what is used when a message is actually being sent. If
3171 there is no remote transport (possible with a router that sets up host
3172 addresses), $smtp_active_hostname is used.
6ea85e9a 3173
14aa5a05 3174PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 3175 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
3176 (a) The code assumed that strncpy() returns a negative number on buffer
3177 overflow, which isn't the case. Replaced with Exim's string_format()
3178 function.
3179 (b) There were several signed/unsigned issues. I just did the minimum
3180 hacking in of casts. There is scope for a larger refactoring.
3181 (c) The code used strcasecmp() which is not a standard C function.
3182 Replaced with Exim's strcmpic() function.
3183 (d) The code set only $1; it now sets $auth1 as well.
3184 (e) A simple test gave the error "authentication client didn't specify
3185 service in request". It would seem that Dovecot has changed its
3186 interface. Fortunately there's a specification; I followed it and
3187 changed what the client sends and it appears to be working now.
3188
ff75a1f7
PH
3189PH/13 Added $message_headers_raw to provide the headers without RFC 2047
3190 decoding.
3191
e6f6568e
PH
3192PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
3193 address A is aliased to B and C, where B exists and C does not. Without
3194 -v the output is "A verified" because verification stops after a
3195 successful redirection if more than one address is generated. However,
3196 with -v the child addresses are also verified. Exim was outputting "A
3197 failed to verify" and then showing the successful verification for C,
3198 with its parentage. It now outputs "B failed to verify", showing B's
3199 parentage before showing the successful verification of C.
3200
d6f6e0dc
PH
3201PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
3202 look up a TXT record in a specific list after matching in a combined
3203 list.
3204
322050c2
PH
3205PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
3206 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
3207 they consult the DNS. I had assumed they would set it the way they
3208 wanted; and indeed my experiments on Linux seem to show that in some
3209 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
3210 To be on the safe side, however, I have now made the interface to
3211 host_find_byname() similar to host_find_bydns(), with an argument
3212 containing the DNS resolver options. The host_find_byname() function now
3213 sets these options at its start, just as host_find_bydns() does. The smtp
3214 transport options dns_qualify_single and dns_search_parents are passed to
3215 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
3216 of host_find_byname() use the default settings of RES_DEFNAMES
3217 (qualify_single) but not RES_DNSRCH (search_parents).
3218
08955dd3
PH
3219PH/17 Applied (a modified version of) Nico Erfurth's patch to make
3220 spool_read_header() do less string testing, by means of a preliminary
3221 switch on the second character of optional "-foo" lines. (This is
3222 overdue, caused by the large number of possibilities that now exist.
3223 Originally there were few.) While I was there, I also converted the
3224 str(n)cmp tests so they don't re-test the leading "-" and the first
3225 character, in the hope this might squeeze out yet more improvement.
3226
1eccaa59
PH
3227PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3228 flag allowing group syntax was set by the header_syntax check but not
3229 turned off, possible causing trouble later; (2) The flag was not being
3230 set at all for the header_verify test, causing "group"-style headers to
3231 be rejected. I have now set it in this case, and also caused header_
3232 verify to ignore an empty address taken from a group. While doing this, I
3233 came across some other cases where the code for allowing group syntax
3234 while scanning a header line wasn't quite right (mostly, not resetting
3235 the flag correctly in the right place). These bugs could have caused
3236 trouble for malformed header lines. I hope it is now all correct.
3237
602e59e5<