Docs: Change default for hosts_try_dane to *
[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.
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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
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21JH/05 DKIM: ensure that dkim_domain elements are lowercased before use.
22
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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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195Exim version 4.92
196-----------------
197
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198JH/01 Remove code calling the customisable local_scan function, unless a new
199 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
200
201JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
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202 non-signal-safe functions being used.
203
204JH/03 Bug 2269: When presented with a received message having a stupidly large
205 number of DKIM-Signature headers, disable DKIM verification to avoid
206 a resource-consumption attack. The limit is set at twenty.
9723f966 207
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208JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
209 report of oldest_pass in ${authres } in consequence, and separate out
210 some descriptions of reasons for verification fail.
211
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212JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
213 files in the spool were present and unlocked. A queue-runner could spot
214 them, resulting in a duplicate delivery. Fix that by doing the unlock
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215 after the unlink. Investigation by Tim Stewart. Take the opportunity to
216 add more error-checking on spoolfile handling while that code is being
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217 messed with.
218
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219PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
220 No known attacks, no CVE, this is defensive hardening.
221
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222JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
223 a queue-runner could start a delivery while other operations were ongoing.
224 Cutthrough delivery was a common victim, resulting in duplicate delivery.
225 Found and investigated by Tim Stewart. Fix by using the open message data
226 file handle rather than opening another, and not locally closing it (which
227 releases a lock) for that case, while creating the temporary .eml format
228 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
229
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230JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
231 $sender_verify_failure/$recipient_verify_failure to "random".
232
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233JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
234 legitimate.
235
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236JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
237 Previously this would segfault.
238
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239JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
240 segfault.
241
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242JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
243 like zero, since the resolver should be doing this for us, But we need one
244 as a CNAME but no MX presence gets the CNAME returned; we need to check
245 that doesn't point to an MX to declare it "no MX returned" rather than
246 "error, loop". A new main option is added so the older capability of
247 following some limited number of chain links is maintained.
248
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249JH/12 Add client-ip info to non-pass iprev ${authres } lines.
250
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251JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
252 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
253 now-deprecated earlier definitions used only specified the range up to TLS
254 1.2 (in the older-version library docs).
255
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256JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
257
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258JH/15 Rework TLS client-side context management. Stop using a global, and
259 explicitly pass a context around. This enables future use of TLS for
260 connections to service-daemons (eg. malware scanning) while a client smtp
261 connection is using TLS; with cutthrough connections this is quite likely.
262
5054c4fd 263JH/16 Fix ARC verification to do AS checks in reverse order.
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264
265JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 266
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267JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
268 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
269 Previously the "utf8" would be re-prepended for every additional message.
270
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271JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
272 Previously thery were accepted, resulting in issues when attempting to
273 forward messages to a non-supporting MTA.
274
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275PP/02 Let -n work with printing macros too, not just options.
276
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277JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
278 one parent address was copied, and bogus data was used at delivery-logging
279 time. Either a crash (after delivery) or bogus log data could result.
280 Discovery and analysis by Tim Stewart.
281
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282PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
283 Previously if the string ended mid-character, we did not insert the
284 promised '?' replacement.
285
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286PP/04 Documentation: current string operators work on bytes, not codepoints.
287
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288JH/21 Change as many as possible of the global flags into one-bit bitfields; these
289 should pack well giving a smaller memory footprint so better caching and
290 therefore performance. Group the declarations where this can't be done so
291 that the byte-sized flag variables are not interspersed among pointer
292 variables, giving a better chance of good packing by the compiler.
293
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294JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
295 non-null, to avoid issues with sites running BATV. Previously reports were
296 sent with an empty envelope sender so looked like bounces.
297
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298JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
299 The ignore_error flag wasn't being returned from the filter subprocess so
300 was not set for later routers. Investigation and fix by Matthias Kurz.
301
7ea1237c 302JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 303 and a msg:complete for the whole, when a message is manually removed using
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304 -Mrm. Developement by Matthias Kurz, hacked on by JH.
305
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306JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
307 a "Gnu special" function, asprintf() in the DB utility binary builds; I
308 hope that is portable enough.
309
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310JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
311 requiring a known-CA anchor certificate; make it now rely entirely on the
312 TLSA as an anchor. Checking the name on the leaf cert against the name
313 on the A-record for the host is still done for TA (but not for EE mode).
314
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315JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
316 included in delivery lines for non-proxied connections, when compiled with
317 SUPPORT_SOCKS and running with proxy logging enabled.
318
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319JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
320 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
321 move the existing event to fire before the normal logging of message
322 failure so that custom logging is bracketed by normal logging.
323
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324JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
325 msg:fail:internal event. Developement by Matthias Kurz.
326
75c121f0 327JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 328 far too small for todays use of crypto signatures stored there. Go all
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329 the way to the max DNS message size of 64kB, even though this might be
330 overmuch for IOT constrained device use.
331
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332JH/31 Fix a bad use of a copy function, which could be used to pointlessly
333 copy a string over itself. The library routine is documented as not
334 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
335
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336JH/32 For main options check_spool_space and check_inode_space, where the
337 platform supports 64b integers, support more than the previous 2^31 kB
338 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
339 the previous G, M, k.
340
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341JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
342 $authenticated_fail_id variable on authentication failure. Previously
343 it was unset.
344
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345JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
346 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
347 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
348 GNUTLS_SEC_PARAM_MEDIUM.
349
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350JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
351 side. Previously we would continue as if no SNI had been received.
352
de6f74f2 353JH/36 Harden the handling of string-lists. When a list consisted of a sole
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354 "<" character, which should be a list-separator specification, we walked
355 off past the nul-terimation.
356
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357JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
358 causes) even when the retry time is not yet met. Previously they were
359 not, meaning that when (say) an account was over-quota and temp-rejecting,
360 and multiple senders' messages were queued, only one sender would get
361 notified on each configured delay_warning cycle.
362
aa6e77af 363JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 364
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365JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
366 cipher-suites, an error can be left on the stack even for a succeeding
367 accept; this results in impossible error messages when a later operation
368 actually does fail.
369
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370AM/01 Bug 2359: GnuTLS: repeat lowlevel read and write operations while they
371 return error codes indicating retry. Under TLS1.3 this becomes required.
372
373JH/40 Fix the feature-cache refresh for EXPERIMENTAL_PIPE_CONNECT. Previously
374 it only wrote the new authenticators, resulting in a lack of tracking of
375 peer changes of ESMTP extensions until the next cache flush.
518b70e9 376
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377JH/41 Fix the loop reading a message header line to check for integer overflow,
378 and more-often against header_maxsize. Previously a crafted message could
379 induce a crash of the recive process; now the message is cleanly rejected.
380
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381JH/42 Bug 2366: Fix the behaviour of the dkim_verify_signers option. It had
382 been totally disabled for all of 4.91. Discovery and fix by "Mad Alex".
383
9723f966 384
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385Exim version 4.91
386-----------------
459fca58 387
c39c8870 388GF/01 DEFER rather than ERROR on redis cluster MOVED response.
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389 When redis_servers is set to a list of > 1 element, and the Redis servers
390 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
391 case of MOVED into a DEFER case instead, thus moving the query onto the
392 next server in the list. For a cluster of N elements, all N servers must
393 be defined in redis_servers.
c39c8870 394
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395GF/02 Catch and remove uninitialized value warning in exiqsumm
396 Check for existence of @ARGV before looking at $ARGV[0]
397
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398JH/01 Replace the store_release() internal interface with store_newblock(),
399 which internalises the check required to safely use the old one, plus
400 the allocate and data copy operations duplicated in both (!) of the
401 extant use locations.
402
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403JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
404 modifier. This matches the restriction on the commandline.
405
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406JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
407 Previously only the last row was returned.
408
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409JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
410 we assumed that tags in the header were well-formed, and parsed the
411 element content after inspecting only the first char of the tag.
412 Assumptions at that stage could crash the receive process on malformed
413 input.
414
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415JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
416 While running the DKIM ACL we operate on the Permanent memory pool so that
417 variables created with "set" persist to the DATA ACL. Also (at any time)
418 DNS lookups that fail create cache records using the Permanent pool. But
419 expansions release any allocations made on the current pool - so a dnsdb
420 lookup expansion done in the DKIM ACL releases the memory used for the
421 DNS negative-cache, and bad things result. Solution is to switch to the
422 Main pool for expansions.
423 While we're in that code, add checks on the DNS cache during store_reset,
424 active in the testsuite.
425 Problem spotted, and debugging aided, by Wolfgang Breyha.
426
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427JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
428 When none of the hosts presented to a transport match an already-open
429 connection, close it and proceed with the list. Previously we would
430 queue the message. Spotted by Lena with Yahoo, probably involving
431 round-robin DNS.
432
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433JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
434 Previously a spurious "250 OK id=" response was appended to the proper
435 failure response.
436
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437JH/08 The "support for" informational output now, which built with Content
438 Scanning support, has a line for the malware scanner interfaces compiled
439 in. Interface can be individually included or not at build time.
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440
441JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
442 by the template makefile "src/EDITME". The "STREAM" support for an older
443 ClamAV interface method is removed.
c11d665d 444
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445JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
446 rows affected is given instead).
447
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448JH/11 The runtime Berkeley DB library version is now additionally output by
449 "exim -d -bV". Previously only the compile-time version was shown.
450
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451JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
452 SMTP connection. Previously, when one had more receipients than the
453 first, an abortive onward connection was made. Move to full support for
454 multiple onward connections in sequence, handling cutthrough connection
455 for all multi-message initiating connections.
456
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457JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
458 routers. Previously, a multi-recipient message would fail to match the
459 onward-connection opened for the first recipient, and cause its closure.
460
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461JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
462 a timeout on read on a GnuTLS initiating connection, resulting in the
463 initiating connection being dropped. This mattered most when the callout
464 was marked defer_ok. Fix to keep the two timeout-detection methods
465 separate.
466
051d5efa
JH
467JH/15 Relax results from ACL control request to enable cutthrough, in
468 unsupported situations, from error to silently (except under debug)
469 ignoring. This covers use with PRDR, frozen messages, queue-only and
470 fake-reject.
471
cf3cd306
HSHR
472HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
473
744976d4
JH
474JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
475 metadata, resulting in a crash in free().
476
aab9a843 477PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 478 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 479 Broken also in d185889f4, with init system revamp.
7be14582 480
83d2a861
JH
481JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
482 Previously we abruptly closed the connection after reading a malware-
483 found indication; now we go on to read the "scan ok" response line,
484 and send a quit.
485
6741531c
JH
486JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
487 ACL. Previously, a crash would result.
488
85e03244
JH
489JH/19 Speed up macro lookups during configuration file read, by skipping non-
490 macro text after a replacement (previously it was only once per line) and
491 by skipping builtin macros when searching for an uppercase lead character.
492
c0635b6d
JH
493JH/20 DANE support moved from Experimental to mainline. The Makefile control
494 for the build is renamed.
495
b808677c
JH
496JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
497 was allocated for every new TLS startup, meaning one per message. Fix
498 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
499
6678c382
JH
500JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
501 reported the original. Fix to report (as far as possible) the ACL
502 result replacing the original.
503
dec766a1
WB
504JH/23 Fix memory leak during multi-message connections using STARTTLS under
505 OpenSSL. Certificate information is loaded for every new TLS startup,
506 and the resources needed to be freed.
507
15ae19f9
JH
508JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
509
e6532c4a
JH
510JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
511 was not propagated.
512
2556b3c6
SA
513JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
514 DATA response info to the (existing) per-recipient response info for
515 the "C=" log element. It can have useful tracking info from the
516 destination system. Patch from Simon Arlott.
517
fc8cd529
JH
518JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
519 length value. Previously this would segfault.
520
71bb51e0
HSHR
521HS/02 Support Avast multiline protoocol, this allows passing flags to
522 newer versions of the scanner.
523
e04bfa34
JH
524JH/28 Ensure that variables possibly set during message acceptance are marked
525 dead before release of memory in the daemon loop. This stops complaints
526 about them when the debug_store option is enabled. Discovered specifically
527 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
528 Do the same for the queue-runner and queue-list loops, for variables set
529 from spool message files. Do the same for the SMTP per-message loop, for
530 certain variables indirectly set in ACL operations.
e04bfa34 531
ecce6d9a
JH
532JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
533 as a multi-recipient message from a mailinglist manager). The coding had
534 an arbitrary cutoff number of characters while checking for more input;
535 enforced by writing a NUL into the buffer. This corrupted long / fast
536 input. The problem was exposed more widely when more pipelineing of SMTP
537 responses was introduced, and one Exim system was feeding another.
538 The symptom is log complaints of SMTP syntax error (NUL chars) on the
539 receiving system, and refused recipients seen by the sending system
540 (propating to people being dropped from mailing lists).
541 Discovered and pinpointed by David Carter.
542
c9cf9ac4
JH
543JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
544 replaced by the ${authresults } expansion.
545
b3b37076
JH
546JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
547
830832c9
HSHR
548HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
549 allows proper process termination in container environments.
550
f64e8b5f
JH
551JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
552 Previously the "final dot" had a newline after it; ensure it is CR,LF.
553
8f0776b5
JH
554JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
555 and "err_perm", deprecated since 4.83 when the RFC-defined words
556 "temperror" and "permerror" were introduced.
557
857eaf37
JH
558JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
559 transport-filters or DKIM-signing. The restriction was lost in the
560 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 561 Extend the restriction to also cover ARC-signing.
857eaf37 562
c85476e9
JH
563JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
564 in defer=pass mode supply a 450 to the initiator. Previously the message
565 would be spooled.
566
405074ad
PP
567PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
568 tls_require_ciphers is used as before.
569
eb445b04
HSHR
570HS/03 Malware Avast: Better match the Avast multiline protocol. Add
571 "pass_unscanned". Only tmpfails from the scanner are written to
572 the paniclog, as they may require admin intervention (permission
573 denied, license issues). Other scanner errors (like decompression
574 bombs) do not cause a paniclog entry.
ad93c40f 575
d342446f
JH
576JH/36 Fix reinitialisation of DKIM logging variable between messages.
577 Previously it was possible to log spurious information in receive log
578 lines.
579
a28050f8
JH
580JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
581 triggered odd behaviour from Outlook Express clients.
582
ddd16464
PP
583PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
584 suffix list.
585
321ef002
JH
586JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
587 since the IETF WG has not yet settled on that versus the original
588 "bare" representation.
589
3203e7ba
JH
590JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
591 Previously the millisecond value corrupted the output.
592 Fix also for syslog_pid=no and log_selector +pid, for which the pid
593 corrupted the output.
594
bbfb5dcd 595
acfc18c3
PP
596Exim version 4.90
597-----------------
598
599JH/01 Rework error string handling in TLS interface so that the caller in
600 more cases is responsible for logging. This permits library-sourced
601 string to be attached to addresses during delivery, and collapses
602 pairs of long lines into single ones.
603
856d1e16
PP
604PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
605 during configuration. Wildcards are allowed and expanded.
606
b9df1829
JH
607JH/02 Rework error string handling in DKIM to pass more info back to callers.
608 This permits better logging.
609
875512a3
JH
610JH/03 Rework the transport continued-connection mechanism: when TLS is active,
611 do not close it down and have the child transport start it up again on
612 the passed-on TCP connection. Instead, proxy the child (and any
613 subsequent ones) for TLS via a unix-domain socket channel. Logging is
614 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 615 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 616
fc3f96af
JH
617JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
618 identical IP addresses on different listening ports. Will also affect
619 "exiwhat" output.
620
98913c8e
BK
621PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
622 add noisy ifdef guards to special-case this sillyness.
623 Patch from Bernd Kuhls.
624
8d909960
JH
625JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
626 than 255 are no longer allowed.
627
7006ee24
JH
628JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
629 Disable the session-cache too, which might reduce our load. Since we
630 currrectly use a new context for every connection, both as server and
631 client, there is no benefit for these.
632 GnuTLS appears to not support tickets server-side by default (we don't
633 call gnutls_session_ticket_enable_server()) but client side is enabled
634 by default on recent versions (3.1.3 +) unless the PFS priority string
635 is used (3.2.4 +).
636
6e411084
PP
637PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
638 <https://reproducible-builds.org/specs/source-date-epoch/>.
639
4c2471ca
JH
640JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
641 the check for any unsuccessful recipients did not notice the limit, and
642 erroneously found still-pending ones.
643
4e910c01
JH
644JH/08 Pipeline CHUNKING command and data together, on kernels that support
645 MSG_MORE. Only in-clear (not on TLS connections).
646
42055a33
JH
647JH/09 Avoid using a temporary file during transport using dkim. Unless a
648 transport-filter is involved we can buffer the headers in memory for
649 creating the signature, and read the spool data file once for the
650 signature and again for transmission.
651
eeb35890
JH
652JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
653 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 654 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 655
b7d3afcf
JH
656JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
657 case where the routing stage had gathered several addresses to send to
658 a host before calling the transport for the first, we previously failed
659 to close down TLS in the old transport process before passing the TCP
660 connection to the new process. The new one sent a STARTTLS command
661 which naturally failed, giving a failed delivery and bloating the retry
662 database. Investigation and fix prototype from Wolfgang Breyha.
663
40525d07
JH
664JH/12 Fix check on SMTP command input synchronisation. Previously there were
665 false-negatives in the check that the sender had not preempted a response
666 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 667 awareness of the SMTP input buffering.
40525d07 668
f33875c3
PP
669PP/04 Add commandline_checks_require_admin option.
670 Exim drops privileges sanely, various checks such as -be aren't a
671 security problem, as long as you trust local users with access to their
672 own account. When invoked by services which pass untrusted data to
673 Exim, this might be an issue. Set this option in main configuration
674 AND make fixes to the calling application, such as using `--` to stop
675 processing options.
676
a5ffa9b4
JH
677JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
678 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
679 responses to those, into a single TLS record each way (this usually means
680 a single packet). As a side issue, smtp_enforce_sync now works on TLS
681 connections.
925ac8e4 682
6600985a
PP
683PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
684 affects you only if you're dancing at the edge of the param size limits.
685 If you are, and this message makes sense to you, then: raise the
686 configured limit or use OpenSSL 1.1. Nothing we can do for older
687 versions.
688
ac4d558b
JH
689JH/14 For the "sock" variant of the malware scanner interface, accept an empty
690 cmdline element to get the documented default one. Previously it was
691 inaccessible.
692
e69636bc
JH
693JH/15 Fix a crash in the smtp transport caused when two hosts in succession
694 are unsuable for non-message-specific reasons - eg. connection timeout,
695 banner-time rejection.
696
a843a57e
JH
697JH/16 Fix logging of delivery remote port, when specified by router, under
698 callout/hold.
699
8e041ae0
PP
700PP/06 Repair manualroute's ability to take options in any order, even if one
701 is the name of a transport.
833c70bc
PP
702 Fixes bug 2140.
703
35a04365
HSHR
704HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
705
4226691b
JH
706JH/17 Change the list-building routines interface to use the expanding-string
707 triplet model, for better allocation and copying behaviour.
708
d185889f
JH
709JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
710 Previously it was constructed the first time a possibly-matching string
711 was met in the configuration file input during startup; now it is done
712 during compilation.
713
0a6c178c
JH
714JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
715 compatible one, to avoid the (poorly documented) possibility of a config
716 file in the working directory redirecting the DB files, possibly correpting
02745400 717 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 718
fae8970d
JH
719JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
720 cache-hot. Previously, although the result was properly cached, the
721 initial verify call returned a defer.
722
ad1a76fe 723JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
724 the main verify for receipient in uncached-mode.
725
ad1a76fe
JH
726JH/22 Retire historical build files to an "unsupported" subdir. These are
727 defined as "ones for which we have no current evidence of testing".
728
135e9496
JH
729JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
730 if present. Previously it was ignored.
731
f2ed27cf
JH
732JH/24 Start using specified-initialisers in C structure init coding. This is
733 a C99 feature (it's 2017, so now considered safe).
734
7eb0e5d2
JH
735JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
736 if was a fixed-sized field and bitmask ops via macros; it is now more
737 extensible.
738
4f9f4be4
739PP/07 GitHub PR 56: Apply MariaDB build fix.
740 Patch provided by Jaroslav Škarvada.
741
dc4de9cc
PP
742PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
743 during Coverity cleanups [4.87 JH/47]
744 Diagnosis and fix provided by Michael Fischer v. Mollard.
745
ea18931d
JH
746JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
747 the right size to place the terminating semicolon on its own folded
748 line, the header hash was calculated to an incorrect value thanks to
749 the (relaxed) space the fold became.
750
0768462d 751HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
752 and confused the parent.
753
848214f7
JH
754JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
755 which could crash as a result. This could lead to undeliverable messages.
756
9e0ed81f
JH
757JH/28 Logging: "next input sent too soon" now shows where input was truncated
758 for log purposes.
759
2540f2f8
JH
760JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
761 matters on fast-turnover and PID-randomising systems, which were getting
762 out-of-order delivery.
763
e5ab0ba9
JH
764JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
765 a possibly-overlapping copy. The symptom was that "Remote host closed
766 connection in response to HELO" was logged instead of the actual 4xx
767 error for the HELO.
768
e99a3a6c
JH
769JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
770 Previously only that bufferd was discarded, resulting in SYMTP command
771 desynchronisation.
772
18067c75
JH
773JH/32 DKIM: when a message has multiple signatures matching an identity given
774 in dkim_verify_signers, run the dkim acl once for each. Previously only
775 one run was done. Bug 2189.
776
72934ba7
JH
777JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
778 "panic the current process" to "deliberately defer". The panic log is
779 still written with the problem list name; the mail and reject logs now
780 get a temp-reject line for the message that was being handled, saying
781 something like "domains check lookup or other defer". The SMTP 451
782 message is still "Temporary local problem".
783
625667b6
JH
784JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
785 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
786 freed. CVE-2017-16943.
787
788HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
789 from SMTP input. Previously it was always done; now only done for DATA
790 and not BDAT commands. CVE-2017-16944.
625667b6 791
d21bf202
JH
792JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
793 to the message (such as an overlong header line). Previously this was
794 not done and we did not exit BDAT mode. Followon from the previous item
795 though a different problem.
796
acfc18c3 797
fd047340 798Exim version 4.89
acfc18c3 799-----------------
4c57a40e 800
9427e879 801JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 802 than -2003 did; needs libidn2 in addition to libidn.
fd047340 803
7b283890
JH
804JH/02 The path option on a pipe transport is now expanded before use.
805
4c57a40e
PP
806PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
807 Patch provided by "Björn", documentation fix added too.
808
5d036699
JH
809JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
810 missing a wire-to-host endian conversion.
811
f4630439
JH
812JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
813 close after a BDAT command line could be taken as a following command,
814 giving a synch failure. Fix by only checking for synch immediately
815 before acknowledging the chunk.
816
f988ce57
JS
817PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
818 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
819 macro. Patches provided by Josh Soref.
820
bd8fbe36
JH
821JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
822 Previously we did not; the RFC seems ambiguous and VRFY is not listed
823 by IANA as a service extension. However, John Klensin suggests that we
824 should.
825
826JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
827 the dkim code may be unix-mode line endings rather than smtp wire-format
828 CRLF, so prepend a CR to any bare LF.
fd047340 829
bd8fbe36 830JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
831 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
832
bd8fbe36
JH
833JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
834 the first were themselves being wrongly included in the feed into dkim
835 processing; with most chunk sizes in use this resulted in an incorrect
836 body hash calculated value.
837
eea19017
JH
838JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
839 DKIM signature block, for verification. Although advised against by
840 standards it is specifically not ruled illegal.
841
44e6651b
JH
842JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
843
844JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
845 missing a body hash (the bh= tag).
846
847JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
848 It seems that HAProxy sends the Proxy Protocol information in clear and
849 only then does a TLS startup, so do the same.
850
851JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
852 TCP connections (such as for Spamd) unless the daemon successfully set
853 Fast Open mode on its listening sockets. This fixes breakage seen on
854 too-old kernels or those not configured for Fast Open, at the cost of
855 requiring both directions being enabled for TFO, and TFO never being used
856 by non-daemon-related Exim processes.
857
858JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
859 endings, at least on the first header line. Try to canonify any that get
860 past that check, despite the cost.
861
b6040544
JH
862JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
863 now limited to an arbitrary five deep, while parsing addresses with the
864 strip_excess_angle_brackets option enabled.
865
f700ea4d
PP
866PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
867 instead leave the unprompted TLS handshake in socket buffer for the
868 TLS library to consume.
869
da88acae
PP
870PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
871
f6ef9370
PP
872PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
873
90341c71
JH
874JH/16 Drop variables when they go out of scope. Memory management drops a whole
875 region in one operation, for speed, and this leaves assigned pointers
876 dangling. Add checks run only under the testsuite which checks all
877 variables at a store-reset and panics on a dangling pointer; add code
878 explicitly nulling out all the variables discovered. Fixes one known
879 bug: a transport crash, where a dangling pointer for $sending_ip_address
880 originally assigned in a verify callout, is re-used.
881
1ec2ab36
PP
882PP/06 Drop '.' from @INC in various Perl scripts.
883
884PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
885
886PP/08 Reduce a number of compilation warnings under clang; building with
887 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
888 should be warning-free.
889
8b2b9480
PP
890JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
891
892HS/01 Fix portability problems introduced by PP/08 for platforms where
893 realloc(NULL) is not equivalent to malloc() [SunOS et al].
894
d953610f
HSHR
895HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
896 chunk. This allows us to accept broken chunked messages. We need a more
897 general solution here.
898
7dc5f827
PP
899PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
900 already-broken messages in the queue.
901
4bb432cb
PP
902JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
903
3b1a84c8
PP
904JH/19 Fix reference counting bug in routing-generated-address tracking.
905
902fbd69 906
8d042305
JH
907Exim version 4.88
908-----------------
4c57a40e 909
9094b84b
JH
910JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
911 supports it and a size is available (ie. the sending peer gave us one).
8d042305 912
03d5892b
JH
913JH/02 The obsolete acl condition "demime" is removed (finally, after ten
914 years of being deprecated). The replacements are the ACLs
915 acl_smtp_mime and acl_not_smtp_mime.
916
4b0fe319
JH
917JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
918 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
919 or even an in-clear connection were permitted. Now, if the host lookup
920 was dnssec and dane was requested then the host is only used if the
921 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
922 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
923 if one fails this test.
924 This means that a poorly-configured remote DNS will make it incommunicado;
925 but it protects against a DNS-interception attack on it.
926
789f8a4f
JH
927JH/04 Bug 1810: make continued-use of an open smtp transport connection
928 non-noisy when a race steals the message being considered.
929
23bb6982 930JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 931 self-signed certificate for inbound TLS connections.
23bb6982 932
0bd1b1ed 933JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 934 in rewrites and routers.
0bd1b1ed 935
20b9a2dc
JH
936JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
937 and logged a warning sing 4.83; now they are a configuration file error.
938
05392bbc
JH
939JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
940 (lacking @domain). Apply the same qualification processing as RCPT.
941
1a6230a3
JH
942JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
943
cfab9d68
JH
944JH/10 Support ${sha256:} applied to a string (as well as the previous
945 certificate).
946
98c82a3d
JH
947JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
948 a cutthrough deliver is pending, as we always want to make a connection.
949 This also avoids re-routing the message when later placing the cutthrough
950 connection after a verify cache hit.
951 Do not update it with the verify result either.
952
953JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
954 when routing results in more than one destination address.
955
ae8386f0
JH
956JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
957 signing (which inhibits the cutthrough capability). Previously only
958 the presence of an option was tested; now an expansion evaluating as
959 empty is permissible (obviously it should depend only on data available
960 when the cutthrough connection is made).
961
0d9fa8c0
JH
962JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
963 the relevant preceding SMTP command did not note the pipelining mode.
964
3581f321
JH
965JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
966 Previously they were not counted.
967
ef3a1a30
JH
968JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
969 as one having no matching records. Previously we deferred the message
970 that needed the lookup.
971
4c04137d 972JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
973 distinguished as "(=".
974
1435d4b2
JH
975JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
976 for missing MX records. Previously it only worked for missing A records.
977
eea0defe
JB
978JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
979
980JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
981 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 982
4c04137d 983JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
984 even for a "none" policy. Patch from Tony Meyer.
985
1c788856
JH
986JH/22 Fix continued use of a connection for further deliveries. If a port was
987 specified by a router, it must also match for the delivery to be
988 compatible.
989
e3b1f624
JH
990JH/23 Bug 1874: fix continued use of a connection for further deliveries.
991 When one of the recipients of a message was unsuitable for the connection
992 (has no matching addresses), we lost track of needing to mark it
993 deferred. As a result mail would be lost.
994
a57ce043
JH
995JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
996
f59aaaaa 997JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
998 takes up less space and should be simpler to maintain. Merge the ACL
999 condition decode tables also, with similar effect.
d7bed771 1000
d1f9fb42
JH
1001JH/26 Fix problem with one_time used on a redirect router which returned the
1002 parent address unchanged. A retry would see the parent address marked as
1003 delivered, so not attempt the (identical) child. As a result mail would
1004 be lost.
1005
92b0827a
JH
1006JH/27 Fix a possible security hole, wherein a process operating with the Exim
1007 UID can gain a root shell. Credit to http://www.halfdog.net/ for
1008 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
1009 itself :(
1010
ddf1b11a
JH
1011JH/28 Enable {spool,log} filesystem space and inode checks as default.
1012 Main config options check_{log,spool}_{inodes,space} are now
1013 100 inodes, 10MB unless set otherwise in the configuration.
1014
3cc3f762
JH
1015JH/29 Fix the connection_reject log selector to apply to the connect ACL.
1016 Previously it only applied to the main-section connection policy
1017 options.
1018
ae5afa61
JH
1019JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
1020
317e40ac
PP
1021PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
1022 by me. Added RFC7919 DH primes as an alternative.
1023
8b0fb68e
PP
1024PP/02 Unbreak build via pkg-config with new hash support when crypto headers
1025 are not in the system include path.
1026
ad7fc6eb 1027JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 1028 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
1029 Exim did stdio operations after fclose. This was exposed by a recent
1030 change which nulled out the file handle after the fclose.
ad7fc6eb 1031
ee5b1e28
JH
1032JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
1033 signed directly by the cert-signing cert, rather than an intermediate
1034 OCSP-signing cert. This is the model used by LetsEncrypt.
1035
5ddc9771
JH
1036JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
1037
8d73599f
JH
1038HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
1039 an incoming connection.
1040
446415f5
HSHR
1041HS/02 Bug 1802: Do not half-close the connection after sending a request
1042 to rspamd.
1043
8e53a4fc
HSHR
1044HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
1045 fallback to "prime256v1".
8d042305 1046
87cb4a16 1047JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 1048 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
1049
1050
0d9b78be
JH
1051Exim version 4.87
1052-----------------
4c57a40e 1053
82d14d6a
JH
1054JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
1055 and 3.4.4 - once the server is enabled to respond to an OCSP request
1056 it does even when not requested, resulting in a stapling non-aware
1057 client dropping the TLS connection.
0d9b78be 1058
6c6d6e48
TF
1059TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
1060 support variable-length bit vectors. No functional change.
1061
ac881e27
TF
1062TF/02 Improve the consistency of logging incoming and outgoing interfaces.
1063 The I= interface field on outgoing lines is now after the H= remote
1064 host field, same as incoming lines. There is a separate
1065 outgoing_interface log selector which allows you to disable the
1066 outgoing I= field.
1067
c8899c20
JH
1068JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
1069 If not running log_selector +smtp_connection the mainlog would be held
1070 open indefinitely after a "too many connections" event, including to a
1071 deleted file after a log rotate. Leave the per net connection logging
1072 leaving it open for efficiency as that will be quickly detected by the
1073 check on the next write.
1074
f1b81d81
HSHR
1075HS/01 Bug 1671: Fix post transport crash.
1076 Processing the wait-<transport> messages could crash the delivery
1077 process if the message IDs didn't exist for some reason. When
1078 using 'split_spool_directory=yes' the construction of the spool
1079 file name failed already, exposing the same netto behaviour.
1080
f38917cc
JH
1081JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
1082 mime_regex ACL conditions.
1083
895fbaf2
JH
1084JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
1085 to DSN fail messages (bounces): remote IP, remote greeting, remote response
1086 to HELO, local diagnostic string.
1087
805bb5c3
JH
1088JH/05 Downgrade message for a TLS-certificate-based authentication fail from
1089 log line to debug. Even when configured with a tls authenticator many
1090 client connections are expected to not authenticate in this way, so
1091 an authenticate fail is not an error.
1092
56c2a7be
HSHR
1093HS/02 Add the Exim version string to the process info. This way exiwhat
1094 gives some more detail about the running daemon.
1095
4c04137d 1096JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
1097 matter for fast-change records such as DNSBLs.
1098
6f6dedcc
JH
1099JH/07 Bug 1678: Always record an interface option value, if set, as part of a
1100 retry record, even if constant. There may be multiple transports with
1101 different interface settings and the retry behaviour needs to be kept
1102 distinct.
1103
0f557e90
JH
1104JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
1105
1106JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
1107
ec0eb1a3
JH
1108JH/10 Bug 840: fix log_defer_output option of pipe transport
1109
41e93589
JH
1110JH/11 Bug 830: use same host for all RCPTS of a message, even under
1111 hosts_randomize. This matters a lot when combined with mua_wrapper.
1112
98b98887 1113JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
1114 ${quote_pgsql:<string>} operator.
1115
98b98887
JH
1116JH/13 Bug 1708: avoid misaligned access in cached lookup.
1117
858e91c2
JH
1118JH/14 Change header file name for freeradius-client. Relevant if compiling
1119 with Radius support; from the Gentoo tree and checked under Fedora.
1120
1121JH/15 Bug 1712: Introduce $prdr_requested flag variable
1122
6ff55e50
JH
1123JH/16 Bug 1714: Permit an empty string as expansion result for transport
1124 option transport_filter, meaning no filtering.
1125
3b957582
JB
1126JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
1127
23f3dc67
JH
1128JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
1129 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 1130 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
1131 If a server certificate is not supplied (via tls_certificate) an error is
1132 logged, and clients will find TLS connections fail on startup. Presumably
1133 they will retry in-clear.
1134 Packagers of Exim are strongly encouraged to create a server certificate
1135 at installation time.
1136
240c288f
JH
1137HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
1138 with the $config_file variable.
1139
5ef5dd52
JB
1140JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
1141 in transport context, after the attempt, and per-recipient. The latter type
1142 is per host attempted. The event data is the error message, and the errno
1143 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 1144 and the trailing two digits of the smtp 4xx response.
5ef5dd52 1145
e161710d
GF
1146GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
1147 to write to mainlog (or rejectlog, paniclog) in the window between file
1148 creation and permissions/ownership being changed. Particularly affects
1149 installations where exicyclog is run as root, rather than exim user;
1150 result is that the running daemon panics and dies.
1151
a159f203
JH
1152JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
1153
7f06582c
JH
1154JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
1155 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
1156 "pri" and "weight". Note that the previous implicit priority given by the
1157 list order is no longer honoured.
1158
4c04137d 1159JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
1160 for DKIM processing.
1161
f0989ec0
JH
1162JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
1163 by defining SUPPORT_SOCKS.
74f150bf 1164
cee5f132
JH
1165JH/26 Move PROXY support from Experimental to mainline, enabled for a build
1166 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
1167 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
1168 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 1169
8c5d388a
JH
1170JH/27 Move Internationalisation support from Experimental to mainline, enabled
1171 for a build by defining SUPPORT_I18N
1172
2d8d625b
JH
1173JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
1174 of the query string, and make ${quote_redis:} do that quoting.
1175
0cbf2b82
JH
1176JH/29 Move Events support from Experimental to mainline, enabled by default
1177 and removable for a build by defining DISABLE_EVENT.
1178
f2f2c91b
JH
1179JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
1180
ce325893
JH
1181JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
1182 cached by the daemon.
1183
de78e2d5
JH
1184JH/32 Move Redis support from Experimental to mainline, enabled for a build
1185 by defining LOOKUP_REDIS. The libhiredis library is required.
1186
379ba7d0
JH
1187JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
1188 keys are given for lookup.
1189
f444c2c7
JH
1190JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
1191 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
1192 only supported when built with TLS support. The PolarSSL SHA routines
1193 are still used when the TLS library is too old for convenient support.
f444c2c7 1194
a57b6200
JH
1195JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
1196 openssl_options), for security. OpenSSL forces this from version 1.1.0
1197 server-side so match that on older versions.
1198
07c73177 1199JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1200 allocation for $value could be released as the expansion processing
07c73177 1201 concluded, but leaving the global pointer active for it.
fa01e4f8 1202
4f6ae5c3
JH
1203JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1204 and to use the domains and local_parts ACL conditions.
1205
1bc460a6
JH
1206JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1207 incorrectly not doubled on cutthrough transmission, hence seen as a
1208 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1209 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1210 via the normal store-and-forward channel. This could result in duplicates
1211 received - but deduplicating mailstores were liable to retain only the
1212 initial truncated version.
1213
ab9152ff 1214JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1215
67e87fcf
JH
1216JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1217
ab9152ff
JH
1218JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1219 we're in there, support oversigning also; bug 1309.
1220
af483912
JH
1221JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1222
bc3c7bb7 1223HS/04 Add support for keep_environment and add_environment options.
df3def24 1224
13559da6
JH
1225JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1226 either intentional arithmetic overflow during PRNG, or testing config-
1227 induced overflows.
1228
59eaad2b
JH
1229JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1230 delivery resulted in actual delivery. Cancel cutthrough before DATA
1231 stage.
1232
f9334a28
JH
1233JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1234 rejects a recipient: pass the reject to the originator.
1235
dc8091e7
JH
1236JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1237 Many were false-positives and ignorable, but it's worth fixing the
1238 former class.
1239
dfe7d917
JH
1240JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1241 for the new environment-manipulation done at startup. Move the routines
1242 from being local to tls.c to being global via the os.c file.
1243
93cc2d6e
JH
1244JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1245 an extract embedded as result-arg for a map, the first arg for extract
1246 is unavailable so we cannot tell if this is a numbered or keyed
1247 extraction. Accept either.
1248
13559da6 1249
9c695f6d
JH
1250Exim version 4.86
1251-----------------
4c57a40e 1252
9c695f6d
JH
1253JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1254 expanded.
1255
506900af
JH
1256JH/02 The smtp transport option "multi_domain" is now expanded.
1257
ad07e9ad
JH
1258JH/03 The smtp transport now requests PRDR by default, if the server offers
1259 it.
1260
01a4a5c5 1261JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1262 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1263 can be used to disable this per-host. The build option
1264 EXPERIMENTAL_CERTNAMES is withdrawn.
1265
cb1d7830 1266JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1267 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1268 For GnuTLS, only version 3.0.20 or later.
1269
610ff438 1270JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1271 (but not required) by default. The verification status is now logged by
1272 default, for both outbound TLS and client-certificate supplying inbound
1273 TLS connections
610ff438 1274
f926e272
JH
1275JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1276 sites use this now.
1277
50dc7409
JH
1278JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1279 Status Notification (bounce) messages are now MIME format per RFC 3464.
1280 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1281 under the control of the dsn_advertise_hosts option, and routers may
1282 have a dsn_lasthop option.
1283
0f0c8159
JH
1284JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1285 default, modifiable by a malware= option. The list separator for
23763898 1286 the options can now be changed in the usual way. Bug 68.
4e71661f 1287
1ad6489e
JH
1288JH/10 The smtp_receive_timeout main option is now expanded before use.
1289
aeaf5db3
JH
1290JH/11 The incoming_interface log option now also enables logging of the
1291 local interface on delivery outgoing connections.
1292
5032d1cf
JH
1293JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1294 if the interface and destination host and port all match.
1295
7e8360e6
JH
1296JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1297 /defer_ok option.
1298
c5f280e2
AL
1299JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1300 Patch from Andrew Lewis.
1301
fd4d8871 1302JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1303 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1304 modifiers per server. Patch originally by <rommer@active.by>.
1305
1306JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1307 and remote servers. Remote servers can be IPv6 addresses, and
1308 specify a port-range.
fd4d8871 1309
23763898
JH
1310JH/17 Bug 68: The spamd_address main option now supports an optional
1311 timeout value per server.
1312
2ad78978
JH
1313JH/18 Bug 1581: Router and transport options headers_add/remove can
1314 now have the list separator specified.
1315
8a512ed5 1316JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1317 option values.
8a512ed5 1318
82c0c8ea 1319JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1320 under OpenSSL.
1321
cc00f4af
JH
1322JH/21 Support for the A6 type of dns record is withdrawn.
1323
82c0c8ea
JH
1324JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1325 rather than the verbs used.
1326
b980ed83
JH
1327JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1328 from 255 to 1024 chars.
1329
6c9ed72e
JH
1330JH/24 Verification callouts now attempt to use TLS by default.
1331
cfab9d68 1332HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1333 are generic router options now. The defaults didn't change.
50dc7409 1334
f846c8f5
JH
1335JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1336 Original patch from Alexander Shikoff, worked over by JH.
1337
fd4c285c
HSHR
1338HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1339 files if ZCAT_COMMAND is not executable.
1340
4c04137d 1341JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1342
d2a2c69b
JH
1343JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1344
8241d8dd
JH
1345JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1346 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1347 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1348 (and we were inconsistent anyway for A-only vs AAAA+A).
1349
1f12df4d
JH
1350JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1351
1f155f8e
JH
1352JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1353 when evaluating $sender_host_dnssec.
1354
1705dd20
JH
1355JH/31 Check the HELO verification lookup for DNSSEC, adding new
1356 $sender_helo_dnssec variable.
1357
038597d2
PP
1358JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1359
474f71bf
JH
1360JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1361
7137ca4b
JH
1362JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1363
dcb1095c
JH
1364JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1365 documented as working, but never had. Support all but $spam_report.
1366
2f460950
JH
1367JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1368 added for tls authenticator.
1369
2f680c0c
HSHR
1370HS/03 Add perl_taintmode main config option
1371
9c695f6d 1372
e449c3b0
TL
1373Exim version 4.85
1374-----------------
4c57a40e 1375
e449c3b0
TL
1376TL/01 When running the test suite, the README says that variables such as
1377 no_msglog_check are global and can be placed anywhere in a specific
1378 test's script, however it was observed that placement needed to be near
1379 the beginning for it to behave that way. Changed the runtest perl
1380 script to read through the entire script once to detect and set these
1381 variables, reset to the beginning of the script, and then run through
1382 the script parsing/test process like normal.
1383
ac20058f
TL
1384TL/02 The BSD's have an arc4random API. One of the functions to induce
1385 adding randomness was arc4random_stir(), but it has been removed in
1386 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1387 function when detected.
1388
a9b8ec8b
JH
1389JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1390 cause callback expansion.
1391
6286d7c4
TL
1392TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1393 syntax errors in an expansion can be treated as a string instead of
1394 logging or causing an error, due to the internal use of bool_lax
1395 instead of bool when processing it.
1396
0f06b4f2 1397JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1398 server certificates when making smtp deliveries.
1399
be36e572
JH
1400JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1401
ac4ef9bd
JH
1402JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1403
0eb51736
TL
1404TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1405
c713ca4b
TL
1406TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1407 Merged patch from Sebastian Wiedenroth.
e449c3b0 1408
bd21a787
WB
1409JH/05 Fix results-pipe from transport process. Several recipients, combined
1410 with certificate use, exposed issues where response data items split
1411 over buffer boundaries were not parsed properly. This eventually
1412 resulted in duplicates being sent. This issue only became common enough
4c04137d 1413 to notice due to the introduction of connection certificate information,
bd21a787
WB
1414 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1415
8bc732e8
JH
1416JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1417 size buffer was used, resulting in syntax errors when an expansion
1418 exceeded it.
1419
a7fec7a7
JH
1420JH/07 Add support for directories of certificates when compiled with a GnuTLS
1421 version 3.3.6 or later.
1422
4c04137d 1423JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1424 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1425 both become "event_action", the variables become $event_name, $event_data
aec45841 1426 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1427 routers, transports and related events. The tls:cert event is now also
1428 raised for inbound connections, if the main configuration event_action
1429 option is defined.
774ef2d7 1430
eca4debb
TL
1431TL/06 In test suite, disable OCSP for old versions of openssl which contained
1432 early OCSP support, but no stapling (appears to be less than 1.0.0).
1433
8d692470
JH
1434JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1435 server certificate names available under the smtp transport option
1436 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1437 matches.
1438
e9477a08
JH
1439JH/10 Time-related extraction expansions from certificates now use the main
1440 option "timezone" setting for output formatting, and are consistent
1441 between OpenSSL and GnuTLS compilations. Bug 1541.
1442
ad4c5ff9
JH
1443JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1444 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1445
1446JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1447 include certificate info, eximon was claiming there were spoolfile
1448 syntax errors.
1449
3394b36a 1450JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1451
1452JH/14 Log delivery-related information more consistently, using the sequence
1453 "H=<name> [<ip>]" wherever possible.
1454
3394b36a
TL
1455TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1456 are problematic for Debian distribution, omit them from the release
1457 tarball.
1458
ad4c5ff9
JH
1459JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1460
4c04137d 1461JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1462 Bug 1561.
1463
1464JH/17 Fix a null-indirection in certextract expansions when a nondefault
1465 output list separator was used.
1466
8bc732e8 1467
1f0ebb98
TL
1468Exim version 4.84
1469-----------------
09728d20
TL
1470TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1471 checkers that were complaining about end of non-void function with no
1472 return.
1f0ebb98 1473
a612424f 1474JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1475 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1476
1477JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1478
1479TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1480 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1481
1f0ebb98 1482
c0e56233
TF
1483Exim version 4.83
1484-----------------
1485
1486TF/01 Correctly close the server side of TLS when forking for delivery.
1487
1488 When a message was received over SMTP with TLS, Exim failed to clear up
1489 the incoming connection properly after forking off the child process to
1490 deliver the message. In some situations the subsequent outgoing
1491 delivery connection happened to have the same fd number as the incoming
1492 connection previously had. Exim would try to use TLS and fail, logging
1493 a "Bad file descriptor" error.
1494
7245734e
TF
1495TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1496 utilities have not been installed.
1497
fd5dad68
JH
1498JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1499 temporary space as the ACL may create new global variables.
1500
5428a946
TL
1501TL/01 LDAP support uses per connection or global context settings, depending
1502 upon the detected version of the libraries at build time.
1503
a3c86431
TL
1504TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1505 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1506 were a direct connection from the outside internet. PPv2 support was
1507 updated based on HAProxy spec change in May 2014.
a3c86431 1508
aa26e137
JH
1509JH/02 Add ${listextract {number}{list}{success}{fail}}.
1510
5a1b8443
WB
1511TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1512 Properly escape header and check for NULL return.
1513
72c9e342
PP
1514PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1515 not dns_use_dnssec.
1516
76f44207
WB
1517JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1518
770747fd
MFM
1519TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1520 characters in header names, implemented as a verify condition.
1521 Contributed by Michael Fischer v. Mollard.
1522
8ddef691 1523TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1524 results permerror and temperror. Previous values are deprecated but
1525 still accepted. In a future release, err_perm and err_temp will be
1526 completely removed, which will be a backward incompatibility if the
1527 ACL tests for either of these two old results. Patch contributed by
8ddef691 1528 user bes-internal on the mailing list.
c0e56233 1529
b9c2e32f
AR
1530JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1531
e45a1c37
JH
1532JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1533 selectors, in both main and reject logs.
1534
67d81c10
JH
1535JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1536 failed delivery.
1537
b1f8e4f8
JH
1538JH/07 Add malware type "sock" for talking to simple daemon.
1539
511a6c14 1540JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1541
1542JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1543 routers/transports under cutthrough routing.
214042d2 1544
51c7471d
JH
1545JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1546 numbers. Touch up "bool" conditional to keep the same definition.
1547
3695be34
TL
1548TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1549
1e06383a
TL
1550JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1551
76146973
JH
1552JH/12 Expand items in router/transport headers_add or headers_remove lists
1553 individually rather than the list as a whole. Bug 1452.
1554
1555 Required for reasonable handling of multiple headers_ options when
1556 they may be empty; requires that headers_remove items with embedded
1557 colons must have them doubled (or the list-separator changed).
1558
8c8b8274
TL
1559TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1560 view the policy declared in the DMARC record. Currently, $dmarc_status
1561 is a combined value of both the record presence and the result of the
1562 analysis.
b1f8e4f8 1563
35aba663
JH
1564JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1565
8c51eead 1566JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1567 dnslookup router and the smtp transport (applying to the forward
1568 lookup).
8c51eead 1569
deae092e
HS
1570TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1571 of ldap servers used for a specific lookup. Patch provided by Heiko
1572 Schlichting.
35aba663 1573
fd3b6a4a 1574JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1575 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1576
8d91c6dc
LT
1577TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1578 Patch submitted by Lars Timman.
1579
2b4a568d
JH
1580JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1581
d2af03f4
HS
1582TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1583 Requires trusted mode and valid format message id, aborts otherwise.
1584 Patch contributed by Heiko Schlichting.
1585
9d1c15ef
JH
1586JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1587 certextract with support for various fields. Bug 1358.
1588
44662487
JH
1589JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1590 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1591 hosts_request_ocsp.
1592
ed3bba5f 1593JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1594 operate on certificate variables to give certificate fingerprints
9ef9101c 1595 Also new ${sha256:cert_variable}.
44662487 1596
8ccd00b1
JH
1597JH/23 The PRDR feature is moved from being Experimental into the mainline.
1598
8ded8589
TL
1599TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1600 Christian Aistleitner.
1601
f2de3a33
JH
1602JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1603
6eb02f88
TL
1604TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1605 file. Patch from Wolfgang Breyha.
1606
00bff6f6
JH
1607JH/25 Expand the coverage of the delivery $host and $host_address to
1608 client authenticators run in verify callout. Bug 1476.
1609
071c51f7
JH
1610JH/26 Port service names are now accepted for tls_on_connect_ports, to
1611 align with daemon_smtp_ports. Bug 72.
1612
a6d4c44e
TF
1613TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1614 support and error reporting did not work properly.
1615
3ae173e7
ACK
1616TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1617 and is readable. Patch from Andrew Colin Kissa.
1618
c13d09b8
TL
1619TL/14 Enhance documentation of ${run expansion and how it parses the
1620 commandline after expansion, particularly in the case when an
1621 unquoted variable expansion results in an empty value.
1622
0df4ab80
JH
1623JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1624
66be95e0
PP
1625PP/02 Fix internal collision of T_APL on systems which support RFC3123
1626 by renaming away from it. Addresses GH issue 15, reported by
1627 Jasper Wallace.
1628
1bd0d12b
JH
1629JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1630
0de7239e
TL
1631TL/15 SECURITY: prevent double expansion in math comparison functions
1632 (can expand unsanitized data). Not remotely exploitable.
1633 CVE-2014-2972
1634
fd3b6a4a 1635
2c422e6f 1636Exim version 4.82
98a90c36
PP
1637-----------------
1638
1639PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1640
12f69989
PP
1641PP/02 Make -n do something, by making it not do something.
1642 When combined with -bP, the name of an option is not output.
1643
54c90be1
PP
1644PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1645 by GnuTLS.
1646
1f4a55da
PP
1647PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1648 $sender_host_name and config options to manage this, and basic check
1649 routines.
1650
13363eba 1651PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1652
66645890 1653PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1654 (Only plugin which currently uses this is kerberos4, which nobody should
1655 be using, but we should make it available and other future plugins might
1656 conceivably use it, even though it would break NAT; stuff *should* be
1657 using channel bindings instead).
66645890 1658
a3fb9793 1659PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1660 name; added for Sendmail compatibility; requires admin caller.
1661 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1662 just ignore it); requires trusted caller.
a3fb9793 1663 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1664 Bugzilla 1117.
a3fb9793 1665
d27f98fe 1666TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1667
6822b909
TL
1668TL/02 Add +smtp_confirmation as a default logging option.
1669
e7568d51
TL
1670TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1671 Patch by Magnus Holmgren from 2007-02-20.
1672
ae0e32ee 1673TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1674 Bugzilla 1283 - Spec typo.
97f42f10 1675 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1676
1677TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1678
e2658fff
TL
1679TL/06 Add Experimental DMARC support using libopendmarc libraries.
1680
83712b39
TL
1681TL/07 Fix an out of order global option causing a segfault. Reported to dev
1682 mailing list by by Dmitry Isaikin.
1683
976b7e9f
JH
1684JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1685
be4a1376
JH
1686JH/02 Support "G" suffix to numbers in ${if comparisons.
1687
ec4b68e5
PP
1688PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1689
d7148a07
NM
1690NM/01 Bugzilla 1197 - Spec typo
1691 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1692
585121e2 1693JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1694
2519e60d
TL
1695PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1696 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1697 function.
a5f239e4 1698
13d08c90
PP
1699PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1700 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1701
bef3ea7f
JH
1702JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1703 "acl {{name}{arg}...}", and optional args on acl condition
1704 "acl = name arg..."
a5f239e4 1705
846726c5
JH
1706JH/05 Permit multiple router/transport headers_add/remove lines.
1707
3a796370
JH
1708JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1709
ea722490 1710JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1711 Performance patch from Paul Fisher. Bugzilla 1262.
1712
b1b05573
JH
1713JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1714 Bugzilla 884.
1715
362145b5
JH
1716JH/09 Add $headers_added variable, with content from use of ACL modifier
1717 add_header (but not yet added to the message). Bugzilla 199.
1718
3c0a92dc
JH
1719JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1720 Pulled from Bugzilla 817 by Wolfgang Breyha.
1721
6d7c6175
PP
1722PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1723 CVE-2012-5671
e78e6ecf 1724 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1725
6f123593
JH
1726JH/11 Add A= logging on delivery lines, and a client_set_id option on
1727 authenticators.
1728
c8e2fc1e
JH
1729JH/12 Add optional authenticated_sender logging to A= and a log_selector
1730 for control.
1731
005ac57f
PP
1732PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1733
3f1df0e3
PP
1734PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1735 advertise SMTP AUTH mechanism to us, instead of a generic
1736 protocol violation error. Also, make Exim more robust to bad
1737 data from the Dovecot auth socket.
1738
67bd1ab3
TF
1739TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1740
1741 When a queue runner is handling a message, Exim first routes the
1742 recipient addresses, during which it prunes them based on the retry
1743 hints database. After that it attempts to deliver the message to
1744 any remaining recipients. It then updates the hints database using
1745 the retry rules.
1746
1747 So if a recipient address works intermittently, it can get repeatedly
1748 deferred at routing time. The retry hints record remains fresh so the
1749 address never reaches the final cutoff time.
1750
1751 This is a fairly common occurrence when a user is bumping up against
1752 their storage quota. Exim had some logic in its local delivery code
1753 to deal with this. However it did not apply to per-recipient defers
1754 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1755
1ddeb334
TF
1756 This change adds a proper retry rule check during routing so that the
1757 final cutoff time is checked against the message's age. We only do
1758 this check if there is an address retry record and there is not a
1759 domain retry record; this implies that previous attempts to handle
1760 the address had the retry_use_local_parts option turned on. We use
1761 this as an approximation for the destination being like a local
1762 delivery, as in LMTP.
67bd1ab3
TF
1763
1764 I suspect this new check makes the old local delivery cutoff check
1765 redundant, but I have not verified this so I left the code in place.
1766
326cdc37
TF
1767TF/02 Correct gecos expansion when From: is a prefix of the username.
1768
1769 Test 0254 submits a message to Exim with the header
1770
1771 Resent-From: f
1772
1773 When I ran the test suite under the user fanf2, Exim expanded
1774 the header to contain my full name, whereas it should have added
1775 a Resent-Sender: header. It erroneously treats any prefix of the
1776 username as equal to the username.
1777
1778 This change corrects that bug.
1779
f62514b3
GF
1780GF/01 DCC debug and logging tidyup
1781 Error conditions log to paniclog rather than rejectlog.
1782 Debug lines prefixed by "DCC: " to remove any ambiguity.
1783
eb505532
TF
1784TF/03 Avoid unnecessary rebuilds of lookup-related code.
1785
14c7b357
PP
1786PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1787 Bug spotted by Jeremy Harris; was flawed since initial commit.
1788 Would have resulted in OCSP responses post-SNI triggering an Exim
1789 NULL dereference and crash.
1790
94eaf700
PP
1791JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1792
6f5a440a
PP
1793PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1794 Bug detection, analysis and fix by Samuel Thibault.
1795 Bugzilla 1331, Debian bug #698092.
1796
514ee161
SC
1797SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1798
fd98a5c6
JH
1799JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1800 Server implementation by Todd Lyons, client by JH.
1801 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1802 config variable "prdr_enable" controls whether the server
1803 advertises the facility. If the client requests PRDR a new
1804 acl_data_smtp_prdr ACL is called once for each recipient, after
1805 the body content is received and before the acl_smtp_data ACL.
4c04137d 1806 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1807 on the smtp transport, and the server advertisement.
1808 Default client logging of deliveries and rejections involving
1809 PRDR are flagged with the string "PRDR".
1810
035c7f1e
PP
1811PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1812 fclose(). Diagnosis by Todd Lyons.
1813
ff284120
PP
1814PP/17 Update configure.default to handle IPv6 localhost better.
1815 Patch by Alain Williams (plus minor tweaks).
1816 Bugzilla 880.
1817
26e72755
PP
1818PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1819 This is now consistent with GnuTLS, and is now documented: the
1820 previous undocumented portable approach to treating the option as
1821 unset was to force an expansion failure. That still works, and
1822 an empty string is now equivalent.
1823
0fbd9bff
PP
1824PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1825 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1826 not performing validation itself.
1827
700d22f3
PP
1828PP/20 Added force_command boolean option to pipe transport.
1829 Patch from Nick Koston, of cPanel Inc.
1830
fcc8e047
JH
1831JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1832 Bugzilla 321, 823.
1833
4c04137d 1834TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1835
8c020188
PP
1836PP/21 Fix eximon continuous updating with timestamped log-files.
1837 Broken in a format-string cleanup in 4.80, missed when I repaired the
1838 other false fix of the same issue.
1839 Report and fix from Heiko Schlichting.
1840 Bugzilla 1363.
1841
d13cdd30
PP
1842PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1843 Report from Prashanth Katuri.
1844
e2fbf4a2
PP
1845PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1846 It's SecureTransport, so affects any MacOS clients which use the
1847 system-integrated TLS libraries, including email clients.
1848
f4c1088b
PP
1849PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1850 using a MIME ACL for non-SMTP local injection.
1851 Report and assistance in diagnosis by Warren Baker.
1852
c5c2182f
PP
1853TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1854
73431ca9
JH
1855JH/16 Fix comparisons for 64b. Bugzilla 1385.
1856
2d07a215
TL
1857TL/09 Add expansion variable $authenticated_fail_id to keep track of
1858 last id that failed so it may be referenced in subsequent ACL's.
1859
a30a8861
TL
1860TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1861 Alexander Miroch.
1862
33382dd9
TL
1863TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1864 ldap library initialization, allowing self-signed CA's to be
1865 used. Also properly sets require_cert option later in code by
1866 using NULL (global ldap config) instead of ldap handle (per
1867 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1868
046172e6
TL
1869TL/12 Enhanced documentation in the ratelimit.pl script provided in
1870 the src/util/ subdirectory.
1871
581d7bee 1872TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1873 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1874 EXPERIMENTAL_TPDA.
1875
1876TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1877 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1878 redis_servers = needs to be configured which will be used by the redis
1879 lookup. Patch from Warren Baker, of The Packet Hub.
1880
237b2cf2
TL
1881TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1882
9fc5a352
TL
1883TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1884 hostname or reverse DNS when processing a host list. Used suggestions
1885 from multiple comments on this bug.
1a7b746d 1886
b10e4ec2
TL
1887TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1888
e2cebd74
TL
1889TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1890 Missed a few lines, added it to make the runtest require no keyboard
1891 interaction.
1892
1893TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1894 contains upper case chars. Make router use caseful_local_part.
1895
2519e60d
TL
1896TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1897 support when GnuTLS has been built with p11-kit.
1898
e78e6ecf 1899
4263f395
PP
1900Exim version 4.80.1
1901-------------------
1902
1903PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1904 CVE-2012-5671
2c422e6f 1905 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1906
ea722490 1907
b1770b6e 1908Exim version 4.80
0599f9cf
PP
1909-----------------
1910
1911PP/01 Handle short writes when writing local log-files.
1912 In practice, only affects FreeBSD (8 onwards).
1913 Bugzilla 1053, with thanks to Dmitry Isaikin.
1914
23c7e742
NM
1915NM/01 Bugzilla 949 - Documentation tweak
1916
b322aac8
NM
1917NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1918 improved.
1919
4a891427
NM
1920NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1921
c1e794ba 1922PP/02 Implemented gsasl authenticator.
b322aac8 1923
97753960
PP
1924PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1925
1926PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1927 `pkg-config foo` for cflags/libs.
1928
df6303fa
PP
1929PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1930 with rest of GSASL and with heimdal_gssapi.
1931
7e6a8985
PP
1932PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1933 `pkg-config foo` for cflags/libs for the TLS implementation.
1934
f1e05cc7 1935PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1936 properties get this fed in as external SSF. A number of robustness
1937 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1938
4c287009
PP
1939PP/08 cyrus_sasl server now expands the server_realm option.
1940
b98bb9ac
PP
1941PP/09 Bugzilla 1214 - Log authentication information in reject log.
1942 Patch by Jeremy Harris.
1943
4a6a987a
PP
1944PP/10 Added dbmjz lookup type.
1945
c45dd180 1946PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1947
7db8d074
PP
1948PP/12 MAIL args handles TAB as well as SP, for better interop with
1949 non-compliant senders.
1950 Analysis and variant patch by Todd Lyons.
1951
eae0036b 1952NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1953 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1954 Patch from Dirk Mueller <dmueller@suse.com>
1955
dec5017e
PP
1956PP/13 tls_peerdn now print-escaped for spool files.
1957 Observed some $tls_peerdn in wild which contained \n, which resulted
1958 in spool file corruption.
1959
c80c5570
PP
1960PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1961 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1962 or write after TLS renegotiation, which otherwise led to messages
1963 "Got SSL error 2".
1964
076b11e2
PP
1965TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1966 as a tracking header (ie: a signed header comes before the signature).
1967 Patch from Wolfgang Breyha.
1968
5407bfff
JH
1969JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1970 comma-sep list; embedded commas doubled.
1971
9e45c72b
PP
1972JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1973
e74376d8
PP
1974PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1975 diagnostics.
1976 Report and patch from Dmitry Banschikov.
1977
4c04137d 1978PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1979 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1980 failures. We appear to now support TLS1.1+ with Exim.
1981
7be682ca
PP
1982PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1983 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1984 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1985 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1986
ef840681
PP
1987PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1988 NULL dereference. Report and patch from Alun Jones.
1989
5bfb4cdf
PP
1990PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1991 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1992 Not seeing resolver debug output on NetBSD, but suspect this is a
1993 resolver implementation change.
1994
c6e95d22
PP
1995PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1996 Left warnings. Added "eximon gdb" invocation mode.
1997
9cbad13b
PP
1998PP/21 Defaulting "accept_8bitmime" to true, not false.
1999
9ee44efb
PP
2000PP/22 Added -bw for inetd wait mode support.
2001
6a6084f8
PP
2002PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
2003 locate the relevant includes and libraries. Made this the default.
2004
12dd53c7
PP
2005PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
2006 Bugzilla 1246, report and most of solution from Tomasz Kusy.
2007
9e45c72b 2008JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
2009 This may cause build issues on older platforms.
2010
17c76198
PP
2011PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
2012 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
2013 gnutls_require_mac & gnutls_require_protocols (no longer supported).
2014 Added SNI support via GnuTLS too.
af3498d6 2015 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 2016
53947857 2017PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 2018
eae0036b 2019PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
2020 Applied second patch from Janne, implementing suggestion to default
2021 multiple-strings-in-record handling to match SPF spec.
eae0036b 2022
9e45c72b 2023JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 2024
7390e768
PP
2025PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
2026 read-only, out of scope).
2027 Patch from Wolfgang Breyha, report from Stuart Northfield.
2028
08488c86
PP
2029PP/29 Fix three issues highlighted by clang analyser static analysis.
2030 Only crash-plausible issue would require the Cambridge-specific
2031 iplookup router and a misconfiguration.
2032 Report from Marcin Mirosław.
2033
6475bd82
PP
2034PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
2035
81f91683
PP
2036PP/31 %D in printf continues to cause issues (-Wformat=security), so for
2037 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
2038 As part of this, removing so much warning spew let me fix some minor
2039 real issues in debug logging.
2040
5779e6aa
PP
2041PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
2042 assignment on my part. Fixed.
2043
3375e053
PP
2044PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
2045 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
2046 Janne Snabb (who went above and beyond: thank you).
2047
2048PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
2049 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
2050 relatively easy to get wrong. Should also expose TLS library linkage
2051 problems.
3375e053 2052
9d26b8c0
PP
2053PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
2054 64-bit ${eval} (JH/03).
2055
57eb9e91 2056PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
2057 GNU libc to support some of the 64-bit stuff, should not lead to
2058 conflicts. Defined before os.h is pulled in, so if a given platform
2059 needs to override this, it can.
2060
16880d1a
PP
2061PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
2062 protection layer was required, which is not implemented.
2063 Bugzilla 1254, patch from Wolfgang Breyha.
2064
a799883d
PP
2065PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
2066 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
2067 tls_dhparam take prime identifiers. Also unbreak combination of
2068 OpenSSL+DH_params+TLSSNI.
2069
3ecab157 2070PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 2071
0599f9cf 2072
867fcbf5
PP
2073Exim version 4.77
2074-----------------
2075
2076PP/01 Solaris build fix for Oracle's LDAP libraries.
2077 Bugzilla 1109, patch from Stephen Usher.
2078
f1a29782
TF
2079TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
2080
ab42bd23
TK
2081TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
2082 whitespace trailer
867fcbf5 2083
0ca0cf52
TF
2084TF/02 Fix a couple more cases where we did not log the error message
2085 when unlink() failed. See also change 4.74-TF/03.
2086
921b12ca
TF
2087TF/03 Make the exiwhat support code safe for signals. Previously Exim might
2088 lock up or crash if it happened to be inside a call to libc when it
2089 got a SIGUSR1 from exiwhat.
2090
2091 The SIGUSR1 handler appends the current process status to the process
2092 log which is later printed by exiwhat. It used to use the general
2093 purpose logging code to do this, but several functions it calls are
2094 not safe for signals.
2095
2096 The new output code in the SIGUSR1 handler is specific to the process
2097 log, and simple enough that it's easy to inspect for signal safety.
2098 Removing some special cases also simplifies the general logging code.
2099 Removing the spurious timestamps from the process log simplifies
2100 exiwhat.
2101
c99ce5c9
TF
2102TF/04 Improved ratelimit ACL condition.
2103
2104 The /noupdate option has been deprecated in favour of /readonly which
2105 has clearer semantics. The /leaky, /strict, and /readonly update modes
2106 are mutually exclusive. The update mode is no longer included in the
2107 database key; it just determines when the database is updated. (This
4c04137d 2108 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
2109
2110 Exim now checks that the per_* options are used with an update mode that
2111 makes sense for the current ACL. For example, when Exim is processing a
2112 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
2113 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
2114 must specify per_mail/readonly. If you omit the update mode it defaults to
2115 /leaky where that makes sense (as before) or /readonly where required.
2116
2117 The /noupdate option is now undocumented but still supported for
2118 backwards compatibility. It is equivalent to /readonly except that in
2119 ACLs where /readonly is required you may specify /leaky/noupdate or
2120 /strict/noupdate which are treated the same as /readonly.
2121
2122 A useful new feature is the /count= option. This is a generalization
2123 of the per_byte option, so that you can measure the throughput of other
2124 aggregate values. For example, the per_byte option is now equivalent
2125 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
2126
2127 The per_rcpt option has been generalized using the /count= mechanism
2128 (though it's more complicated than the per_byte equivalence). When it is
2129 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
2130 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
2131 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
2132 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
2133 Note that using per_rcpt with a non-readonly update mode in more than
2134 one ACL will cause the recipients to be double-counted. (The per_mail
2135 and per_byte options don't have this problem.)
2136
2137 The handling of very low rates has changed slightly. If the computed rate
2138 is less than the event's count (usually one) then this event is the first
2139 after a long gap. In this case the rate is set to the same as this event's
2140 count, so that the first message of a spam run is counted properly.
2141
2142 The major new feature is a mechanism for counting the rate of unique
2143 events. The new per_addr option counts the number of different
2144 recipients that someone has sent messages to in the last time period. It
2145 behaves like per_rcpt if all the recipient addresses are different, but
2146 duplicate recipient addresses do not increase the measured rate. Like
2147 the /count= option this is a general mechanism, so the per_addr option
2148 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
2149 example, measure the rate that a client uses different sender addresses
2150 with the options per_mail/unique=$sender_address. There are further
2151 details in the main documentation.
2152
3634fc25
TF
2153TF/05 Removed obsolete $Cambridge$ CVS revision strings.
2154
792e8a19
TF
2155TF/06 Removed a few PCRE remnants.
2156
5901f0ab
TF
2157TF/07 Automatically extract Exim's version number from tags in the git
2158 repository when doing development or release builds.
2159
7f2a2a43
PP
2160PP/02 Raise smtp_cmd_buffer_size to 16kB.
2161 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 2162
061b7ebd
PP
2163PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
2164 Heavily based on revision 40f9a89a from Simon Arlott's tree.
2165 Bugzilla 97.
2166
e12f8c32
PP
2167PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
2168
9e949f00 2169PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
2170 Bugzilla 1078. Patch from John Horne.
2171
2172PP/06 Stop make process more reliably on build failure.
2173 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 2174
555ae6af 2175PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
2176 Bugzilla 1089. Patch from Heiko Schlittermann.
2177
2178PP/08 Handle ${run} returning more data than OS pipe buffer size.
2179 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 2180
6f7fe114
PP
2181PP/09 Handle IPv6 addresses with SPF.
2182 Bugzilla 860. Patch from Wolfgang Breyha.
2183
c566dd90
PP
2184PP/10 GnuTLS: support TLS 1.2 & 1.1.
2185 Bugzilla 1156.
89f897c3
PP
2186 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
2187 Bugzilla 1095.
c566dd90 2188
d6cc7c78 2189PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
2190 New compile-time build option, EXPAND_LISTMATCH_RHS.
2191 New expansion conditions, "inlist", "inlisti".
2192
0d0e4455
PP
2193PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
2194
3399bb60 2195PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
2196
2197PP/14 fix log_write() format string regression from TF/03.
2198 Bugzilla 1152. Patch from Dmitry Isaikin.
2199
0ca0cf52 2200
10906672
PP
2201Exim version 4.76
2202-----------------
2203
2204PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2205
754a0503
PP
2206PP/02 Harmonised TLS library version reporting; only show if debugging.
2207 Layout now matches that introduced for other libraries in 4.74 PP/03.
2208
c0c7b2da
PP
2209PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2210
e97d1f08
PP
2211PP/04 New "dns_use_edns0" global option.
2212
084c1d8c
PP
2213PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2214 Bugzilla 1098.
2215
4e7ee012
PP
2216PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2217 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2218
c8d52a00
PP
2219TK/01 Updated PolarSSL code to 0.14.2.
2220 Bugzilla 1097. Patch from Andreas Metzler.
2221
54e7ce4a
PP
2222PP/07 Catch divide-by-zero in ${eval:...}.
2223 Fixes bugzilla 1102.
2224
5ee6f336
PP
2225PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2226 Bugzilla 1104.
2227
c8d52a00 2228TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2229 format-string attack -- SECURITY: remote arbitrary code execution.
2230
2231TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2232 time unintentionally subject to list matching rules, letting the header
2233 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2234 arbitrary string expansion). This allowed for information disclosure.
2235
2236PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2237 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2238
10906672 2239
aa097c4c
NM
2240Exim version 4.75
2241-----------------
2242
4c04137d 2243NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2244 Bugzilla 1073
2245
7f3d9eff
TF
2246TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2247 This fixes portability to compilers other than gcc, notably
2248 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2249
159f52d2
TF
2250TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2251 makefiles for portability to HP-UX and POSIX correctness.
2252
0cc9542a
PP
2253PP/01 Permit LOOKUP_foo enabling on the make command-line.
2254 Also via indented variable definition in the Makefile.
2255 (Debugging by Oliver Heesakkers).
2256
f7274286
PP
2257PP/02 Restore caching of spamd results with expanded spamd_address.
2258 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2259
7b797365
PP
2260PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2261 Improves build reliability. Fix from: Frank Elsner
2262
caacae52
NM
2263NM/02 Fix wide character breakage in the rfc2047 coding
2264 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2265
09dcaba9
NM
2266NM/03 Allow underscore in dnslist lookups
2267 Fixes bug 1026. Patch from Graeme Fowler
2268
bc19a55b
PP
2269PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2270 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2271
bd4c9759
NM
2272NM/04 Fixed exiqgrep to cope with mailq missing size issue
2273 Fixes bug 943.
2274
b72aab72
PP
2275PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2276 is logged, to avoid truncation. Patch from John Horne.
2277
2fe76745
PP
2278PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2279 Patch from Jakob Hirsch.
2280
76aa570c
PP
2281PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2282 SQL string expansion failure details.
2283 Patch from Andrey Oktyabrski.
2284
f1e5fef5
PP
2285PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2286 Patch from Simon Arlott.
2287
4d805ee9
PP
2288PP/09 New lookups functionality failed to compile on old gcc which rejects
2289 extern declarations in function scope.
2290 Patch from Oliver Fleischmann
2291
cd59ab18
PP
2292PP/10 Use sig_atomic_t for flags set from signal handlers.
2293 Check getgroups() return and improve debugging.
2294 Fixed developed for diagnosis in bug 927 (which turned out to be
2295 a kernel bug).
2296
332f5cf3
PP
2297PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2298 Patch from Mark Zealey.
2299
29cfeb94
PP
2300PP/12 Bugzilla 1056: Improved spamd server selection.
2301 Patch from Mark Zealey.
2302
660242ad
PP
2303PP/13 Bugzilla 1086: Deal with maildir quota file races.
2304 Based on patch from Heiko Schlittermann.
2305
bc4bc4c5
PP
2306PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2307 Patch from Uwe Doering, sign-off by Michael Haardt.
2308
2e64baa9
NM
2309NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2310 variable declaration deep within a block. Bug and patch from
2311 Dennis Davis.
2312
4c04137d 2313PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2314
6bac1a9a
PP
2315PP/16 Make DISABLE_DKIM build knob functional.
2316
552193f0
NM
2317NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2318 Patch by Simon Arlott
baeee2c1 2319
1b587e48
TF
2320TF/03 Fix valgrind.h portability to C89 compilers that do not support
2321 variable argument macros. Our copy now differs from upstream.
2322
aa097c4c 2323
8c07b69f
TF
2324Exim version 4.74
2325-----------------
2326
2327TF/01 Failure to get a lock on a hints database can have serious
2328 consequences so log it to the panic log.
2329
c0ea85ab
TF
2330TF/02 Log LMTP confirmation messages in the same way as SMTP,
2331 controlled using the smtp_confirmation log selector.
2332
0761d44e
TF
2333TF/03 Include the error message when we fail to unlink a spool file.
2334
0a349494
PP
2335DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2336 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2337 for maintaining out-of-tree patches for some time.
2338
2339PP/01 Bugzilla 139: Documentation and portability issues.
2340 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2341 Handle per-OS dynamic-module compilation flags.
2342
fea24b2e
PP
2343PP/02 Let /dev/null have normal permissions.
2344 The 4.73 fixes were a little too stringent and complained about the
2345 permissions on /dev/null. Exempt it from some checks.
2346 Reported by Andreas M. Kirchwitz.
2347
6545de78
PP
2348PP/03 Report version information for many libraries, including
2349 Exim version information for dynamically loaded libraries. Created
2350 version.h, now support a version extension string for distributors
2351 who patch heavily. Dynamic module ABI change.
2352
1670ef10
PP
2353PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2354 privilege escalation vulnerability whereby the Exim run-time user
2355 can cause root to append content of the attacker's choosing to
2356 arbitrary files.
2357
c0886197
PP
2358PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2359 (Wolfgang Breyha)
2360
b7487bce
PP
2361PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2362 If dropping privileges for untrusted macros, we disabled normal logging
2363 on the basis that it would fail; for the Exim run-time user, this is not
2364 the case, and it resulted in successful deliveries going unlogged.
2365 Fixed. Reported by Andreas Metzler.
2366
8c07b69f 2367
97fd1e48 2368Exim version 4.73
ed7f7860 2369-----------------
97fd1e48
PP
2370
2371PP/01 Date: & Message-Id: revert to normally being appended to a message,
2372 only prepend for the Resent-* case. Fixes regression introduced in
2373 Exim 4.70 by NM/22 for Bugzilla 607.
2374
6901c596
PP
2375PP/02 Include check_rfc2047_length in configure.default because we're seeing
2376 increasing numbers of administrators be bitten by this.
2377
a8c8d6b5
JJ
2378JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2379
77bb000f
PP
2380PP/03 Bugzilla 994: added openssl_options main configuration option.
2381
a29e5231
PP
2382PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2383
ec5a0394 2384PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2385
55c75993
PP
2386PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2387
453a6645 2388PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2389 without a peer certificate, leading to a segfault because of an
2390 assumption that peers always have certificates. Be a little more
453a6645
PP
2391 paranoid. Problem reported by Martin Tscholak.
2392
8544e77a
PP
2393PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2394 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2395 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2396 CL also introduces -bmalware, various -d+acl logging additions and
2397 more caution in buffer sizes.
8544e77a 2398
83e029d5
PP
2399PP/09 Implemented reverse_ip expansion operator.
2400
ed7f7860
PP
2401PP/10 Bugzilla 937: provide a "debug" ACL control.
2402
7d9f747b
PP
2403PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2404
4b2241d2
PP
2405PP/12 Bugzilla 973: Implement --version.
2406
10385c15
PP
2407PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2408
dbc4b90d
PP
2409PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2410
532be449
PP
2411PP/15 Bugzilla 816: support multiple condition rules on Routers.
2412
6a8de854 2413PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2414 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2415 ignore trailing whitespace.
6a8de854 2416
5dc43717
JJ
2417JJ/02 prevent non-panic DKIM error from being sent to paniclog
2418
2419JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2420 "exim" to be used
55c75993 2421
3346ab01
PP
2422PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2423 Notification from Dr Andrew Aitchison.
2424
491fab4c
PP
2425PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2426 ExtendedDetectionInfo response format.
2427 Notification from John Horne.
2428
13eb9497
PP
2429PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2430 compatible.
2431
2432PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2433 XSL and documented dependency on system catalogs, with examples of how
2434 it normally works.
2435
7f36d675
DW
2436DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2437 access.
2438
c1d94452
DW
2439DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2440 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2441 configuration file which is writeable by the Exim user or group.
2442
e2f5dc15
DW
2443DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2444 of configuration files to cover files specified with the -C option if
2445 they are going to be used with root privileges, not just the default
2446 configuration file.
2447
cd25e41d
DW
2448DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2449 option (effectively making it always true).
2450
261dc43e
DW
2451DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2452 files to be used while preserving root privileges.
2453
fa32850b
DW
2454DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2455 that rogue child processes cannot use them.
2456
79d4bc3d
PP
2457PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2458 run-time user, instead of root.
2459
43236f35 2460PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2461 Exim run-time user without dropping privileges.
2462
fb08281f
DW
2463DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2464 result string, instead of calling string_vformat() twice with the same
2465 arguments.
3346ab01 2466
74935b98
DW
2467DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2468 for other users. Others should always drop root privileges if they use
2469 -C on the command line, even for a whitelisted configure file.
2470
90b6341f
DW
2471DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2472
57730b52
ML
2473NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2474
66581d1e 2475
465e92cf
JJ
2476Exim version 4.72
2477-----------------
2478
453a6645
PP
2479JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2480 $data_path, and $header_path variables; fixed documentation bugs and
2481 typos
465e92cf 2482
453a6645
PP
2483JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2484 exipick to access non-standard spools, including the "frozen" queue
2485 (Finput)
edae0343 2486
9bd3e22c
NM
2487NM/01 Bugzilla 965: Support mysql stored procedures.
2488 Patch from Alain Williams
2489
bb576ff7
NM
2490NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2491
5a1a5845
NM
2492NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2493 Patch from Andreas Metzler
2494
981a9fad
NM
2495NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2496 Patch from Kirill Miazine
2497
7fc497ee
NM
2498NM/05 Bugzilla 671: Added umask to procmail example.
2499
1a41defa
JJ
2500JJ/03 installed exipick 20100323.0, fixing doc bug
2501
a466095c 2502NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2503 directory. Notification and patch from Dan Rosenberg.
a466095c 2504
94a6bd0b
NM
2505TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2506
2507TK/02 Improve log output when DKIM signing operation fails.
2508
2509MH/01 Treat the transport option dkim_domain as a colon separated
2510 list, not as a single string, and sign the message with each element,
2511 omitting multiple occurences of the same signer.
2512
c1b141a8
NM
2513NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2514 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2515
b26eacf1 2516NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2517 Patch by Simon Arlott
2518
179c5980 2519PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2520 MBX locking. Notification from Dan Rosenberg.
179c5980 2521
9bd3e22c 2522
7c6d71af
NM
2523Exim version 4.71
2524-----------------
2525
7d9f747b 2526TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2527
f013fb92
NM
2528NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2529
0eb8eedd
NM
2530NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2531
663ee6d9
NM
2532NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2533
177ebd9b
NM
2534NM/04 Bugzilla 915: Flag broken perl installation during build.
2535
7c6d71af 2536
210f147e
NM
2537Exim version 4.70
2538-----------------
2539
cdd3bb85 2540TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2541 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2542
2543TK/02 Write list of recipients to X-Envelope-Sender header when building
2544 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2545 Hirsch).
cdd3bb85
TK
2546
2547TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2548 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2549 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2550
2551TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2552 by Mark Daniel Reidel <mr@df.eu>.
2553
210f147e
NM
2554NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2555 When building exim an external PCRE library is now needed -
2556 PCRE is a system library on the majority of modern systems.
2557 See entry on PCRE_LIBS in EDITME file.
2558
deafd5b3
NM
2559NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2560 conversation. Added nologin parameter to request.
7d9f747b 2561 Patch contributed by Kirill Miazine.
deafd5b3 2562
089793a4
TF
2563TF/01 Do not log submission mode rewrites if they do not change the address.
2564
5f16ca82
TF
2565TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2566
dae9d94e 2567NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2568 log files in place. Contributed by Roberto Lima.
dae9d94e 2569
7d9f747b 2570NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2571
06864c44
TF
2572TF/03 Bugzilla 615: When checking the local_parts router precondition
2573 after a local_part_suffix or local_part_prefix option, Exim now
2574 does not use the address's named list lookup cache, since this
2575 contains cached lookups for the whole local part.
2576
65a7d8c3 2577NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2578 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2579
23510047 2580TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2581
7d9f747b 2582NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2583
7d8eec3a 2584NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2585 Patch provided by Jan Srzednicki.
6c588e74 2586
89dec7b6
TF
2587TF/05 Leading white space used to be stripped from $spam_report which
2588 wrecked the formatting. Now it is preserved.
5f28a6e8 2589
a99de90c
TF
2590TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2591 that they are available at delivery time.
2592
e2803e40
TF
2593TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2594
7199e1ee
TF
2595TF/08 TLS error reporting now respects the incoming_interface and
2596 incoming_port log selectors.
2597
e276e04b
TF
2598TF/09 Produce a more useful error message if an SMTP transport's hosts
2599 setting expands to an empty string.
2600
ce552449 2601NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2602 Patch provided by Phil Pennock.
ce552449 2603
e765a0f1 2604NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2605 Patch provided by Richard Godbee.
e765a0f1 2606
4f054c63 2607NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2608 acl_smtp_notquit, added index entry.
4f054c63 2609
7d9f747b
PP
2610NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2611 Patch provided by Eugene Bujak.
24c929a2 2612
7d9f747b
PP
2613NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2614 accept(). Patch provided by Maxim Dounin.
cf73943b 2615
b52bc06e 2616NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2617 Patch provided by Phil Pennock.
b52bc06e 2618
447de4b0
NM
2619NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2620
4c69d561 2621NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2622 Patch provided by Brad "anomie" Jorsch.
4c69d561 2623
d5c39246 2624NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2625 Patch provided by Dean Brooks.
9b989985 2626
0b23848a
TK
2627TK/05 Add native DKIM support (does not depend on external libraries).
2628
8f3414a1 2629NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2630 Patch provided by Graeme Fowler.
e2aacdfd 2631
fb6f955d
NM
2632NM/16 Bugzilla 851: Documentation example syntax fix.
2633
2634NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2635
7d9f747b
PP
2636NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2637 lsearch.
dbb0bf41 2638
7d9f747b
PP
2639NM/19 Bugzilla 745: TLS version reporting.
2640 Patch provided by Phil Pennock.
f3766eb5 2641
7d9f747b
PP
2642NM/20 Bugzilla 167: bool: condition support.
2643 Patch provided by Phil Pennock.
36f12725 2644
7d9f747b
PP
2645NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2646 clients. Patch provided by Phil Pennock.
e6060e2c 2647
7d9f747b
PP
2648NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2649 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2650
7d9f747b
PP
2651NM/23 Bugzilla 687: Fix misparses in eximstats.
2652 Patch provided by Heiko Schlittermann.
d5c13d66 2653
7d9f747b
PP
2654NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2655 Patch provided by Heiko Schlittermann.
b2335c0b 2656
7d9f747b 2657NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2658 plus update to original patch.
f4cd9433 2659
7d9f747b 2660NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2661
7d9f747b
PP
2662NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2663 Patch provided by David Brownlee.
8dc71ab3 2664
7d9f747b 2665NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2666
7d9f747b 2667NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2668
7d9f747b 2669NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2670
7d9f747b 2671NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2672
17792b53 2673NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2674 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2675
7d9f747b
PP
2676NM/33 Bugzilla 898: Transport filter timeout fix.
2677 Patch by Todd Rinaldo.
52383f8f 2678
91576cec 2679NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2680 Patch by Serge Demonchaux.
5ca6d115 2681
7d9f747b
PP
2682NM/35 Bugzilla 39: Base64 decode bug fixes.
2683 Patch by Jakob Hirsch.
baee9eee 2684
7d9f747b 2685NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2686
7d9f747b 2687NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2688
7d9f747b 2689NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2690
7d9f747b 2691NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2692
deafd5b3 2693
47db1125
NM
2694Exim version 4.69
2695-----------------
2696
4b3504d0
TK
2697TK/01 Add preliminary DKIM support. Currently requires a forked version of
2698 ALT-N's libdkim that I have put here:
2699 http://duncanthrax.net/exim-experimental/
2700
2701 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2702 were called 'true' and it seems that C99 defines that as a reserved
2703 keyword to be used with 'bool' variable types. That means you could
2704 not include C99-style headers which use bools without triggering
2705 build errors in sieve.c.
2706
81ea09ca
NM
2707NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2708 as mailq or other aliases. Changed the --help handling significantly
2709 to do whats expected. exim_usage() emits usage/help information.
2710
f13cddcb
SC
2711SC/01 Added the -bylocaldomain option to eximstats.
2712
7d9f747b 2713NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2714
7d9f747b 2715NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2716
7d9f747b 2717NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2718
2719
eb4c0de6
PH
2720Exim version 4.68
2721-----------------
2722
2723PH/01 Another patch from the Sieve maintainer.
2724
6a3bceb1
PH
2725PH/02 When an IPv6 address is converted to a string for single-key lookup
2726 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2727 dots are used instead of colons so that keys in lsearch files need not
2728 contain colons. This was done some time before quoting was made available
2729 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2730 (notated using the quote facility) so as to distinguish them from IPv4
2731 keys. This meant that lookups for IP addresses in host lists did not work
2732 for iplsearch lookups.
2733
2734 This has been fixed by arranging for IPv6 addresses to be expressed with
2735 colons if the lookup type is iplsearch. This is not incompatible, because
2736 previously such lookups could never work.
2737
4c04137d 2738 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2739 ordinary lsearch keys. However, making the change in all cases is
2740 incompatible and would probably break a number of configurations.
2741
2e30fa9d
TK
2742TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2743 version.
2744
0806a9c5
MH
2745MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2746 conversion specification without a maximum field width, thereby enabling
2747 a rogue spamd server to cause a buffer overflow. While nobody in their
2748 right mind would setup Exim to query an untrusted spamd server, an
2749 attacker that gains access to a server running spamd could potentially
2750 exploit this vulnerability to run arbitrary code as the Exim user.
2751
ae276964
TK
2752TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2753 $primary_hostname instead of what libspf2 thinks the hosts name is.
2754
0f2cbd1b
MH
2755MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2756 a directory entry by the name of the lookup key. Previously, if a
2757 symlink pointed to a non-existing file or a file in a directory that
2758 Exim lacked permissions to read, a lookup for a key matching that
2759 symlink would fail. Now it is enough that a matching directory entry
2760 exists, symlink or not. (Bugzilla 503.)
2761
2b85bce7
PH
2762PH/03 The body_linecount and body_zerocount variables are now exported in the
2763 local_scan API.
2764
93655c46
PH
2765PH/04 Added the $dnslist_matched variable.
2766
6c512171
PH
2767PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2768 This means they are set thereafter only if the connection becomes
2769 encrypted.
2770
2771PH/06 Added the client_condition to authenticators so that some can be skipped
2772 by clients under certain conditions.
2773
aa6dc513
PH
2774PH/07 The error message for a badly-placed control=no_multiline_responses left
2775 "_responses" off the end of the name.
2776
a96603a0
PH
2777PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2778
8f240103
PH
2779PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2780 (without spaces) instead of just copying the configuration text.
2781
2782PH/10 Added the /noupdate option to the ratelimit ACL condition.
2783
d677b2f2
PH
2784PH/11 Added $max_received_linelength.
2785
d52120f2
PH
2786PH/12 Added +ignore_defer and +include_defer to host lists.
2787
64f2600a
PH
2788PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2789 way in which PCRE > 7.0 is built.
2790
8669f003
PH
2791PH/14 Implemented queue_only_load_latch.
2792
a4dc33a8
PH
2793PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2794 MAIL command. The effect was to mangle the value on 64-bit systems.
2795
d6a60c0f
PH
2796PH/16 Another patch from the Sieve maintainer.
2797
8f128379
PH
2798PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2799
8932dffe
PH
2800PH/18 If a system quota error occurred while trying to create the file for
2801 a maildir delivery, the message "Mailbox is full" was not appended to the
2802 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2803 only to a quota excession during the actual writing of the file.
d6a60c0f 2804
ddea74fa 2805PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2806 characters?) which causes problems in log lines. The DN values are now
2807 passed through string_printing() before being added to log lines.
2808
ddea74fa 2809PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2810 and InterBase are left for another time.)
2811
ddea74fa
PH
2812PH/21 Added message_body_newlines option.
2813
ce9f225c
PH
2814PH/22 Guard against possible overflow in moan_check_errorcopy().
2815
19897d52
PH
2816PH/23 POSIX allows open() to be a macro; guard against that.
2817
bc64a74d
PH
2818PH/24 If the recipient of an error message contained an @ in the local part
2819 (suitably quoted, of course), incorrect values were put in $domain and
2820 $local_part during the evaluation of errors_copy.
2821
eb4c0de6 2822
b4ed4da0
PH
2823Exim version 4.67
2824-----------------
2825
22ad45c9
MH
2826MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2827 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2828 Jan Srzednicki.
2829
b4ed4da0
PH
2830PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2831 issue a MAIL command.
2832
431b7361
PH
2833PH/02 In an ACL statement such as
2834
2835 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2836
2837 if a client was not listed at all, or was listed with a value other than
2838 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2839 the condition was not true (as it should be), so access was not denied.
2840 The bug was that the ! inversion was incorrectly passed on to the second
2841 item. This has been fixed.
2842
2843PH/03 Added additional dnslists conditions == and =& which are different from
2844 = and & when the dns lookup returns more than one IP address.
2845
83da1223
PH
2846PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2847 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2848
54fc8428
PH
2849PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2850 FSYNC, which compiles an option called disable_fsync that allows for
2851 bypassing fsync(). The documentation is heavily laced with warnings.
2852
34c5e8dd
SC
2853SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2854
bbe15da8
PH
2855PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2856 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2857 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2858 including adding "make clean"; (3) Added -fPIC when compiling the test
2859 dynamically loaded module, to get rid of a warning.
2860
0e8a9471
MH
2861MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2862 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2863 = 0s. The bug is otherwise harmless.
2864
f0872424
PH
2865PH/07 There was a bug in the dovecot authenticator such that the value of
2866 $auth1 could be overwritten, and so not correctly preserved, after a
2867 successful authentication. This usually meant that the value preserved by
2868 the server_setid option was incorrect.
2869
b01dd148
PH
2870PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2871
6bf342e1
PH
2872PH/09 Installed PCRE release 7.0.
2873
273f34d0
PH
2874PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2875 run for batched SMTP input. It is now run at the start of every message
2876 in the batch. While fixing this I discovered that the process information
2877 (output by running exiwhat) was not always getting set for -bs and -bS
2878 input. This is fixed, and it now also says "batched" for BSMTP.
2879
cf8b11a5
PH
2880PH/11 Added control=no_pipelining.
2881
41c7c167
PH
2882PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2883 patch, slightly modified), and move the expansion of helo_data till after
2884 the connection is made in the smtp transport (so it can use these
2885 values).
2886
9c57cbc0
PH
2887PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2888
f3f065bb
PH
2889PH/14 Added log_selector = +pid.
2890
047bdd8c
PH
2891PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2892
0ce9abe6
PH
2893PH/16 Add ${if forany and ${if forall.
2894
0e22dfd1
PH
2895PH/17 Added dsn_from option to vary the From: line in DSNs.
2896
4c590bd1
PH
2897PH/18 Flush SMTP output before performing a callout, unless control =
2898 no_callout_flush is set.
2899
09945f1e
PH
2900PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2901 was true (the default) a successful delivery failed to delete the retry
2902 item, thus causing premature timeout of the address. The bug is now
2903 fixed.
2904
c51b8e75
PH
2905PH/20 Added hosts_avoid_pipelining to the smtp transport.
2906
e28326d8 2907PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2908 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2909 other ACL rejections are.
2910
75b1493f
PH
2911PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2912 with slight modification.
2913
7c5214ec
PH
2914PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2915 draft, changing the syntax and factoring some duplicate code".
2916
4311097e
PH
2917PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2918 for deliveries of the second and subsequent messages over the same SMTP
2919 connection.
2920
29f89cad
PH
2921PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2922 ${reduce, with only minor "tidies".
2923
5e687460
SC
2924SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2925
c3611384
PH
2926PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2927 expansion side effects.
2928
5a11a7b4
PH
2929PH/27 When a message times out after an over-quota error from an Exim-imposed
2930 quota, the bounce message says "mailbox is full". This message was not
2931 being given when it was a system quota that was exceeded. It now should
2932 be the same.
2933
0e20aff9
MH
2934MH/03 Made $recipients available in local_scan(). local_scan() already has
2935 better access to the recipient list through recipients_list[], but
2936 $recipients can be useful in postmaster-provided expansion strings.
2937
ca86f471
PH
2938PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2939 in the case of a MAIL command with additional options following the
2940 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2941 were accidentally chopped off.
2942
a14e5636
PH
2943PH/29 SMTP synchronization checks are implemented when a command is read -
2944 there is a check that no more input is waiting when there shouldn't be
2945 any. However, for some commands, a delay in an ACL can mean that it is
2946 some time before the response is written. In this time, more input might
2947 arrive, invalidly. So now there are extra checks after an ACL has run for
2948 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2949 pipelining has not been advertised.
2950
ec95d1a6
PH
2951PH/30 MH's patch to allow iscntrl() characters to be list separators.
2952
42855d71
PH
2953PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2954 returned in the SMTP response when smtp_return_error_details was false.
2955 This has been fixed.
2956
57c2c631
PH
2957PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2958 instead of the C I/O that was originally supplied, because problems were
2959 reported on Solaris.
2960
58c01c94
PH
2961PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2962 Exim which did not show up earlier: it was assuming that a call to
2963 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2964 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2965 was a macro that became an assignment, so it seemed to work. This has
2966 changed to a proper function call with a void return, hence the compile
2967 error. Exim's code has been fixed.
2968
dee5a20a
PH
2969PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2970 cpus.
2971
d2ee6114
PH
2972PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2973
b2d5182b
PH
2974PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2975
79749a79
PH
2976PH/37 If a message is not accepted after it has had an id assigned (e.g.
2977 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2978 "Completed" line in the log. When some messages of this type were
2979 selected by exigrep, they were listed as "not completed". Others were
2980 picked up by some special patterns. I have improved the selection
2981 criteria to be more general.
79749a79 2982
c456d9bb
PH
2983PH/38 The host_find_failed option in the manualroute router can now be set
2984 to "ignore", to completely ignore a host whose IP address cannot be
2985 found. If all hosts are ignored, the behaviour is controlled by the new
2986 host_all_ignored option.
2987
cd9868ec
PH
2988PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2989 homing or because of multiple MX records with /mx) generated more than
2990 one IP address, and the following item turned out to be the local host,
2991 all the secondary addresses of the first item were incorrectly removed
2992 from the list, along with the local host and any following hosts (which
2993 is what is supposed to happen).
2994
ebeaf996
PH
2995PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2996 whoever called Exim into the -H file. In the case of the daemon it was
2997 behaving confusingly. When first started, it used values for whoever
2998 started the daemon, but after a SIGHUP it used the Exim user (because it
2999 calls itself on a restart). I have changed the code so that it now always
3000 uses the Exim user.
3001
2679d413
PH
3002PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
3003 message are rejected with the same error (e.g. no authentication or bad
3004 sender address), and a DATA command is nevertheless sent (as can happen
3005 with PIPELINING or a stupid MUA), the error message that was given to the
3006 RCPT commands is included in the rejection of the DATA command. This is
3007 intended to be helpful for MUAs that show only the final error to their
3008 users.
3009
84024b72
PH
3010PH/42 Another patch from the Sieve maintainer.
3011
8005d38e
SC
3012SC/02 Eximstats - Differentiate between permanent and temporary rejects.
3013 Eximstats - Fixed some broken HTML links and added missing column headers
3014 (Jez Hancock).
3015 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
3016 columns for Rejects, Temp Rejects, Ham, and Spam rows.
3017
3298c6c6
SC
3018SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
3019
a43a27c5
PH
3020PH/43 Yet another patch from the Sieve maintainer.
3021
58eb016e 3022PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
3023 the response to the final '.' that terminates a message, but only in the
3024 case where the client has not sent further data following the '.'
3025 (unfortunately, this is allowed). However, in many cases there won't be
3026 any further data because there won't be any more messages to send. A call
3027 to select() can be used: if it shows that the input is "ready", there is
3028 either input waiting, or the socket has been closed. An attempt to read
3029 the next input character can distinguish the two cases. Previously, Exim
58eb016e 3030 would have sent an OK response which the client would never have see.
563b63fa
PH
3031 This could lead to message repetition. This fix should cure that, at
3032 least in a lot of common cases.
58eb016e 3033
b43a74ea
PH
3034PH/45 Do not advertise STARTTLS in response to HELP unless it would be
3035 advertised in response to EHLO.
3036
b4ed4da0 3037
5dd1517f
PH
3038Exim version 4.66
3039-----------------
3040
3041PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
3042 fixed by 4.65/MH/01 (is this a record?) are fixed:
3043
3044 (i) An empty string was always treated as zero by the numeric comparison
3045 operators. This behaviour has been restored.
3046
3047 (ii) It is documented that the numeric comparison operators always treat
3048 their arguments as decimal numbers. This was broken in that numbers
3049 starting with 0 were being interpreted as octal.
3050
3051 While fixing these problems I realized that there was another issue that
3052 hadn't been noticed. Values of message_size_limit (both the global option
3053 and the transport option) were treated as octal if they started with 0.
3054 The documentation was vague. These values are now always treated as
3055 decimal, and I will make that clear in the documentation.
3056
3057
93cfa765
TK
3058Exim version 4.65
3059-----------------
3060
3061TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
3062 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
3063 versions. (#438)
3064
d6066548
MH
3065MH/01 Don't check that the operands of numeric comparison operators are
3066 integers when their expansion is in "skipping" mode (fixes bug
3067 introduced by 4.64-PH/07).
3068
4362ff0d
PH
3069PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
3070 child addresses, Exim now panics and dies. Previously, because the count
3071 is held in a short int, deliveries were likely to be lost. As such a
3072 large number of recipients for a single message is ridiculous
3073 (performance will be very, very poor), I have chosen to impose a limit
3074 rather than extend the field.
3075
93cfa765 3076
944e9e9c
TF
3077Exim version 4.64
3078-----------------
aa41d2de 3079
21d74bd9
TK
3080TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
3081 leftover -K file (the existence of which was triggered by #402).
3082 While we were at it, introduced process PID as part of the -K
3083 filename. This should rule out race conditions when creating
3084 these files.
3085
3086TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
3087 processing considerably. Previous code took too long for large mails,
3088 triggering a timeout which in turn triggers #401.
3089
3090TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
3091 in the DK code in transports.c. sendfile() is not really portable,
3092 hence the _LINUX specificness.
944e9e9c
TF
3093
3094TF/01 In the add_headers option to the mail command in an Exim filter,
3095 there was a bug that Exim would claim a syntax error in any
3096 header after the first one which had an odd number of characters
3097 in the field name.
3098
2b1c6e3a
PH
3099PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
3100 callout verification, Exim cached a "reject" for the entire domain. This
3101 is correct for most verifications, but it is not correct for a recipient
3102 verification with use_sender or use_postmaster set, because in that case
3103 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
3104 case of MAIL FROM:<> rejection from other early rejections (e.g.
3105 rejection of HELO). When verifying a recipient using a non-null MAIL
3106 address, the cache is ignored if it shows MAIL FROM:<> rejection.
3107 Whatever the result of the callout, the value of the domain cache is
3108 left unchanged (for any other kind of callout, getting as far as trying
3109 RCPT means that the domain itself is ok).
3110
1f872c80
PH
3111PH/02 Tidied a number of unused variable and signed/unsigned warnings that
3112 gcc 4.1.1 threw up.
3113
3114PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
3115 manifest itself as EPIPE rather than ECONNECT. When tidying away a
3116 session, the daemon ignores ECONNECT errors and logs others; it now
3117 ignores EPIPE as well.
3118
d203e649
PH
3119PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
3120 (quoted-printable decoding).
3121
cc2ed8f7 3122PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 3123 later the small subsequent patch to fix an introduced bug.
f951fd57 3124
ddfcd446
PH
3125PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
3126
d45b1de8
PH
3127PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
3128
3129PH/08 An error is now given if message_size_limit is specified negative.
3130
38a0a95f 3131PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 3132 to be given (somewhat) arbitrary names.
38a0a95f 3133
a2405d83
JJ
3134JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
3135 in 4.64-PH/09.
3136
3137JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
3138 miscellaneous code fixes
3139
6ea85e9a
PH
3140PH/10 Added the log_reject_target ACL modifier to specify where to log
3141 rejections.
3142
26da7e20
PH
3143PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
3144 hostname. This is wrong, because it relates to the incoming message (and
3145 probably the interface on which it is arriving) and not to the outgoing
3146 callout (which could be using a different interface). This has been
3147 changed to use the value of the helo_data option from the smtp transport
3148 instead - this is what is used when a message is actually being sent. If
3149 there is no remote transport (possible with a router that sets up host
3150 addresses), $smtp_active_hostname is used.
6ea85e9a 3151
14aa5a05 3152PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 3153 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
3154 (a) The code assumed that strncpy() returns a negative number on buffer
3155 overflow, which isn't the case. Replaced with Exim's string_format()
3156 function.
3157 (b) There were several signed/unsigned issues. I just did the minimum
3158 hacking in of casts. There is scope for a larger refactoring.
3159 (c) The code used strcasecmp() which is not a standard C function.
3160 Replaced with Exim's strcmpic() function.
3161 (d) The code set only $1; it now sets $auth1 as well.
3162 (e) A simple test gave the error "authentication client didn't specify
3163 service in request". It would seem that Dovecot has changed its
3164 interface. Fortunately there's a specification; I followed it and
3165 changed what the client sends and it appears to be working now.
3166
ff75a1f7
PH
3167PH/13 Added $message_headers_raw to provide the headers without RFC 2047
3168 decoding.
3169
e6f6568e
PH
3170PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
3171 address A is aliased to B and C, where B exists and C does not. Without
3172 -v the output is "A verified" because verification stops after a
3173 successful redirection if more than one address is generated. However,
3174 with -v the child addresses are also verified. Exim was outputting "A
3175 failed to verify" and then showing the successful verification for C,
3176 with its parentage. It now outputs "B failed to verify", showing B's
3177 parentage before showing the successful verification of C.
3178
d6f6e0dc
PH
3179PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
3180 look up a TXT record in a specific list after matching in a combined
3181 list.
3182
322050c2
PH
3183PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
3184 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
3185 they consult the DNS. I had assumed they would set it the way they
3186 wanted; and indeed my experiments on Linux seem to show that in some
3187 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
3188 To be on the safe side, however, I have now made the interface to
3189 host_find_byname() similar to host_find_bydns(), with an argument
3190 containing the DNS resolver options. The host_find_byname() function now
3191 sets these options at its start, just as host_find_bydns() does. The smtp
3192 transport options dns_qualify_single and dns_search_parents are passed to
3193 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
3194 of host_find_byname() use the default settings of RES_DEFNAMES
3195 (qualify_single) but not RES_DNSRCH (search_parents).
3196
08955dd3
PH
3197PH/17 Applied (a modified version of) Nico Erfurth's patch to make
3198 spool_read_header() do less string testing, by means of a preliminary
3199 switch on the second character of optional "-foo" lines. (This is
3200 overdue, caused by the large number of possibilities that now exist.
3201 Originally there were few.) While I was there, I also converted the
3202 str(n)cmp tests so they don't re-test the leading "-" and the first
3203 character, in the hope this might squeeze out yet more improvement.
3204
1eccaa59
PH
3205PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3206 flag allowing group syntax was set by the header_syntax check but not
3207 turned off, possible causing trouble later; (2) The flag was not being
3208 set at all for the header_verify test, causing "group"-style headers to
3209 be rejected. I have now set it in this case, and also caused header_
3210 verify to ignore an empty address taken from a group. While doing this, I
3211 came across some other cases where the code for allowing group syntax
3212 while scanning a header line wasn't quite right (mostly, not resetting
3213 the flag correctly in the right place). These bugs could have caused
3214 trouble for malformed header lines. I hope it is now all correct.
3215
602e59e5
PH
3216PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3217 with the "reply" argument non-NULL. The code, however (which originally
3218 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3219 but it didn't always do it. This confused somebody who was copying the
3220 code for some other use. I have removed all the tests.
3221
411ef850
PH
3222PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3223 feature that was used to support insecure browsers during the U.S. crypto
3224 embargo. It requires special client support, and Exim is probably the
3225 only MTA that supported it -- and would never use it because real RSA is
3226 always available. This code has been removed, because it had the bad
3227 effect of slowing Exim down by computing (never used) parameters for the
3228 RSA_EXPORT functionality.
3229
7befa435
PH
3230PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3231 authenticator to fail if there's a tab character in the incoming data
3232 (there should never be unless someone is messing about, as it's supposed
3233 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3234 if the connection is using TLS or if the remote IP is the same as the
3235 local IP, and the "valid-client-cert option" if a client certificate has
3236 been verified.
3237
48da4259 3238PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3239