Update Changelog for Bug 2351
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495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
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8Exim version 4.92
9-----------------
10
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11JH/01 Remove code calling the customisable local_scan function, unless a new
12 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
13
14JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
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15 non-signal-safe functions being used.
16
17JH/03 Bug 2269: When presented with a received message having a stupidly large
18 number of DKIM-Signature headers, disable DKIM verification to avoid
19 a resource-consumption attack. The limit is set at twenty.
9723f966 20
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21JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
22 report of oldest_pass in ${authres } in consequence, and separate out
23 some descriptions of reasons for verification fail.
24
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25JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
26 files in the spool were present and unlocked. A queue-runner could spot
27 them, resulting in a duplicate delivery. Fix that by doing the unlock
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28 after the unlink. Investigation by Tim Stewart. Take the opportunity to
29 add more error-checking on spoolfile handling while that code is being
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30 messed with.
31
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32PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
33 No known attacks, no CVE, this is defensive hardening.
34
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35JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
36 a queue-runner could start a delivery while other operations were ongoing.
37 Cutthrough delivery was a common victim, resulting in duplicate delivery.
38 Found and investigated by Tim Stewart. Fix by using the open message data
39 file handle rather than opening another, and not locally closing it (which
40 releases a lock) for that case, while creating the temporary .eml format
41 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
42
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43JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
44 $sender_verify_failure/$recipient_verify_failure to "random".
45
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46JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
47 legitimate.
48
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49JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
50 Previously this would segfault.
51
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52JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
53 segfault.
54
d8d9f930
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55JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
56 like zero, since the resolver should be doing this for us, But we need one
57 as a CNAME but no MX presence gets the CNAME returned; we need to check
58 that doesn't point to an MX to declare it "no MX returned" rather than
59 "error, loop". A new main option is added so the older capability of
60 following some limited number of chain links is maintained.
61
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62JH/12 Add client-ip info to non-pass iprev ${authres } lines.
63
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64JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
65 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
66 now-deprecated earlier definitions used only specified the range up to TLS
67 1.2 (in the older-version library docs).
68
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69JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
70
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71JH/15 Rework TLS client-side context management. Stop using a global, and
72 explicitly pass a context around. This enables future use of TLS for
73 connections to service-daemons (eg. malware scanning) while a client smtp
74 connection is using TLS; with cutthrough connections this is quite likely.
75
5054c4fd 76JH/16 Fix ARC verification to do AS checks in reverse order.
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77
78JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 79
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80JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
81 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
82 Previously the "utf8" would be re-prepended for every additional message.
83
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84JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
85 Previously thery were accepted, resulting in issues when attempting to
86 forward messages to a non-supporting MTA.
87
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88PP/02 Let -n work with printing macros too, not just options.
89
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90JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
91 one parent address was copied, and bogus data was used at delivery-logging
92 time. Either a crash (after delivery) or bogus log data could result.
93 Discovery and analysis by Tim Stewart.
94
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95PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
96 Previously if the string ended mid-character, we did not insert the
97 promised '?' replacement.
98
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99PP/04 Documentation: current string operators work on bytes, not codepoints.
100
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101JH/21 Change as many as possible of the global flags into one-bit bitfields; these
102 should pack well giving a smaller memory footprint so better caching and
103 therefore performance. Group the declarations where this can't be done so
104 that the byte-sized flag variables are not interspersed among pointer
105 variables, giving a better chance of good packing by the compiler.
106
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107JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
108 non-null, to avoid issues with sites running BATV. Previously reports were
109 sent with an empty envelope sender so looked like bounces.
110
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111JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
112 The ignore_error flag wasn't being returned from the filter subprocess so
113 was not set for later routers. Investigation and fix by Matthias Kurz.
114
7ea1237c 115JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 116 and a msg:complete for the whole, when a message is manually removed using
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117 -Mrm. Developement by Matthias Kurz, hacked on by JH.
118
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119JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
120 a "Gnu special" function, asprintf() in the DB utility binary builds; I
121 hope that is portable enough.
122
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123JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
124 requiring a known-CA anchor certificate; make it now rely entirely on the
125 TLSA as an anchor. Checking the name on the leaf cert against the name
126 on the A-record for the host is still done for TA (but not for EE mode).
127
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128JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
129 included in delivery lines for non-proxied connections, when compiled with
130 SUPPORT_SOCKS and running with proxy logging enabled.
131
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132JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
133 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
134 move the existing event to fire before the normal logging of message
135 failure so that custom logging is bracketed by normal logging.
136
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137JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
138 msg:fail:internal event. Developement by Matthias Kurz.
139
75c121f0 140JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 141 far too small for todays use of crypto signatures stored there. Go all
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142 the way to the max DNS message size of 64kB, even though this might be
143 overmuch for IOT constrained device use.
144
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145JH/31 Fix a bad use of a copy function, which could be used to pointlessly
146 copy a string over itself. The library routine is documented as not
147 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
148
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149JH/32 For main options check_spool_space and check_inode_space, where the
150 platform supports 64b integers, support more than the previous 2^31 kB
151 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
152 the previous G, M, k.
153
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154JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
155 $authenticated_fail_id variable on authentication failure. Previously
156 it was unset.
157
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158JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
159 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
160 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
161 GNUTLS_SEC_PARAM_MEDIUM.
162
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163JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
164 side. Previously we would continue as if no SNI had been received.
165
de6f74f2 166JH/36 Harden the handling of string-lists. When a list consisted of a sole
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167 "<" character, which should be a list-separator specification, we walked
168 off past the nul-terimation.
169
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170JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
171 causes) even when the retry time is not yet met. Previously they were
172 not, meaning that when (say) an account was over-quota and temp-rejecting,
173 and multiple senders' messages were queued, only one sender would get
174 notified on each configured delay_warning cycle.
175
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176JH/01 Bug 2351: Log failures to extract envelope addresses from message headers.
177
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179Exim version 4.91
180-----------------
459fca58 181
c39c8870 182GF/01 DEFER rather than ERROR on redis cluster MOVED response.
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183 When redis_servers is set to a list of > 1 element, and the Redis servers
184 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
185 case of MOVED into a DEFER case instead, thus moving the query onto the
186 next server in the list. For a cluster of N elements, all N servers must
187 be defined in redis_servers.
c39c8870 188
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189GF/02 Catch and remove uninitialized value warning in exiqsumm
190 Check for existence of @ARGV before looking at $ARGV[0]
191
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192JH/01 Replace the store_release() internal interface with store_newblock(),
193 which internalises the check required to safely use the old one, plus
194 the allocate and data copy operations duplicated in both (!) of the
195 extant use locations.
196
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197JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
198 modifier. This matches the restriction on the commandline.
199
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200JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
201 Previously only the last row was returned.
202
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203JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
204 we assumed that tags in the header were well-formed, and parsed the
205 element content after inspecting only the first char of the tag.
206 Assumptions at that stage could crash the receive process on malformed
207 input.
208
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209JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
210 While running the DKIM ACL we operate on the Permanent memory pool so that
211 variables created with "set" persist to the DATA ACL. Also (at any time)
212 DNS lookups that fail create cache records using the Permanent pool. But
213 expansions release any allocations made on the current pool - so a dnsdb
214 lookup expansion done in the DKIM ACL releases the memory used for the
215 DNS negative-cache, and bad things result. Solution is to switch to the
216 Main pool for expansions.
217 While we're in that code, add checks on the DNS cache during store_reset,
218 active in the testsuite.
219 Problem spotted, and debugging aided, by Wolfgang Breyha.
220
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221JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
222 When none of the hosts presented to a transport match an already-open
223 connection, close it and proceed with the list. Previously we would
224 queue the message. Spotted by Lena with Yahoo, probably involving
225 round-robin DNS.
226
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227JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
228 Previously a spurious "250 OK id=" response was appended to the proper
229 failure response.
230
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231JH/08 The "support for" informational output now, which built with Content
232 Scanning support, has a line for the malware scanner interfaces compiled
233 in. Interface can be individually included or not at build time.
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234
235JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
236 by the template makefile "src/EDITME". The "STREAM" support for an older
237 ClamAV interface method is removed.
c11d665d 238
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239JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
240 rows affected is given instead).
241
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242JH/11 The runtime Berkeley DB library version is now additionally output by
243 "exim -d -bV". Previously only the compile-time version was shown.
244
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245JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
246 SMTP connection. Previously, when one had more receipients than the
247 first, an abortive onward connection was made. Move to full support for
248 multiple onward connections in sequence, handling cutthrough connection
249 for all multi-message initiating connections.
250
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251JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
252 routers. Previously, a multi-recipient message would fail to match the
253 onward-connection opened for the first recipient, and cause its closure.
254
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255JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
256 a timeout on read on a GnuTLS initiating connection, resulting in the
257 initiating connection being dropped. This mattered most when the callout
258 was marked defer_ok. Fix to keep the two timeout-detection methods
259 separate.
260
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261JH/15 Relax results from ACL control request to enable cutthrough, in
262 unsupported situations, from error to silently (except under debug)
263 ignoring. This covers use with PRDR, frozen messages, queue-only and
264 fake-reject.
265
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266HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
267
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268JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
269 metadata, resulting in a crash in free().
270
aab9a843 271PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 272 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 273 Broken also in d185889f4, with init system revamp.
7be14582 274
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275JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
276 Previously we abruptly closed the connection after reading a malware-
277 found indication; now we go on to read the "scan ok" response line,
278 and send a quit.
279
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280JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
281 ACL. Previously, a crash would result.
282
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283JH/19 Speed up macro lookups during configuration file read, by skipping non-
284 macro text after a replacement (previously it was only once per line) and
285 by skipping builtin macros when searching for an uppercase lead character.
286
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287JH/20 DANE support moved from Experimental to mainline. The Makefile control
288 for the build is renamed.
289
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290JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
291 was allocated for every new TLS startup, meaning one per message. Fix
292 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
293
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294JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
295 reported the original. Fix to report (as far as possible) the ACL
296 result replacing the original.
297
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298JH/23 Fix memory leak during multi-message connections using STARTTLS under
299 OpenSSL. Certificate information is loaded for every new TLS startup,
300 and the resources needed to be freed.
301
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302JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
303
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304JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
305 was not propagated.
306
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307JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
308 DATA response info to the (existing) per-recipient response info for
309 the "C=" log element. It can have useful tracking info from the
310 destination system. Patch from Simon Arlott.
311
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312JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
313 length value. Previously this would segfault.
314
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315HS/02 Support Avast multiline protoocol, this allows passing flags to
316 newer versions of the scanner.
317
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318JH/28 Ensure that variables possibly set during message acceptance are marked
319 dead before release of memory in the daemon loop. This stops complaints
320 about them when the debug_store option is enabled. Discovered specifically
321 for sender_rate_period, but applies to a whole set of variables.
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322 Do the same for the queue-runner and queue-list loops, for variables set
323 from spool message files. Do the same for the SMTP per-message loop, for
324 certain variables indirectly set in ACL operations.
e04bfa34 325
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326JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
327 as a multi-recipient message from a mailinglist manager). The coding had
328 an arbitrary cutoff number of characters while checking for more input;
329 enforced by writing a NUL into the buffer. This corrupted long / fast
330 input. The problem was exposed more widely when more pipelineing of SMTP
331 responses was introduced, and one Exim system was feeding another.
332 The symptom is log complaints of SMTP syntax error (NUL chars) on the
333 receiving system, and refused recipients seen by the sending system
334 (propating to people being dropped from mailing lists).
335 Discovered and pinpointed by David Carter.
336
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337JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
338 replaced by the ${authresults } expansion.
339
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340JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
341
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342HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
343 allows proper process termination in container environments.
344
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345JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
346 Previously the "final dot" had a newline after it; ensure it is CR,LF.
347
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348JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
349 and "err_perm", deprecated since 4.83 when the RFC-defined words
350 "temperror" and "permerror" were introduced.
351
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352JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
353 transport-filters or DKIM-signing. The restriction was lost in the
354 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 355 Extend the restriction to also cover ARC-signing.
857eaf37 356
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357JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
358 in defer=pass mode supply a 450 to the initiator. Previously the message
359 would be spooled.
360
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361PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
362 tls_require_ciphers is used as before.
363
eb445b04
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364HS/03 Malware Avast: Better match the Avast multiline protocol. Add
365 "pass_unscanned". Only tmpfails from the scanner are written to
366 the paniclog, as they may require admin intervention (permission
367 denied, license issues). Other scanner errors (like decompression
368 bombs) do not cause a paniclog entry.
ad93c40f 369
d342446f
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370JH/36 Fix reinitialisation of DKIM logging variable between messages.
371 Previously it was possible to log spurious information in receive log
372 lines.
373
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374JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
375 triggered odd behaviour from Outlook Express clients.
376
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377PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
378 suffix list.
379
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380JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
381 since the IETF WG has not yet settled on that versus the original
382 "bare" representation.
383
3203e7ba
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384JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
385 Previously the millisecond value corrupted the output.
386 Fix also for syslog_pid=no and log_selector +pid, for which the pid
387 corrupted the output.
388
bbfb5dcd 389
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390Exim version 4.90
391-----------------
392
393JH/01 Rework error string handling in TLS interface so that the caller in
394 more cases is responsible for logging. This permits library-sourced
395 string to be attached to addresses during delivery, and collapses
396 pairs of long lines into single ones.
397
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398PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
399 during configuration. Wildcards are allowed and expanded.
400
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401JH/02 Rework error string handling in DKIM to pass more info back to callers.
402 This permits better logging.
403
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404JH/03 Rework the transport continued-connection mechanism: when TLS is active,
405 do not close it down and have the child transport start it up again on
406 the passed-on TCP connection. Instead, proxy the child (and any
407 subsequent ones) for TLS via a unix-domain socket channel. Logging is
408 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 409 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 410
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411JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
412 identical IP addresses on different listening ports. Will also affect
413 "exiwhat" output.
414
98913c8e
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415PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
416 add noisy ifdef guards to special-case this sillyness.
417 Patch from Bernd Kuhls.
418
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419JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
420 than 255 are no longer allowed.
421
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422JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
423 Disable the session-cache too, which might reduce our load. Since we
424 currrectly use a new context for every connection, both as server and
425 client, there is no benefit for these.
426 GnuTLS appears to not support tickets server-side by default (we don't
427 call gnutls_session_ticket_enable_server()) but client side is enabled
428 by default on recent versions (3.1.3 +) unless the PFS priority string
429 is used (3.2.4 +).
430
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431PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
432 <https://reproducible-builds.org/specs/source-date-epoch/>.
433
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434JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
435 the check for any unsuccessful recipients did not notice the limit, and
436 erroneously found still-pending ones.
437
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438JH/08 Pipeline CHUNKING command and data together, on kernels that support
439 MSG_MORE. Only in-clear (not on TLS connections).
440
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441JH/09 Avoid using a temporary file during transport using dkim. Unless a
442 transport-filter is involved we can buffer the headers in memory for
443 creating the signature, and read the spool data file once for the
444 signature and again for transmission.
445
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446JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
447 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 448 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 449
b7d3afcf
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450JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
451 case where the routing stage had gathered several addresses to send to
452 a host before calling the transport for the first, we previously failed
453 to close down TLS in the old transport process before passing the TCP
454 connection to the new process. The new one sent a STARTTLS command
455 which naturally failed, giving a failed delivery and bloating the retry
456 database. Investigation and fix prototype from Wolfgang Breyha.
457
40525d07
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458JH/12 Fix check on SMTP command input synchronisation. Previously there were
459 false-negatives in the check that the sender had not preempted a response
460 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 461 awareness of the SMTP input buffering.
40525d07 462
f33875c3
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463PP/04 Add commandline_checks_require_admin option.
464 Exim drops privileges sanely, various checks such as -be aren't a
465 security problem, as long as you trust local users with access to their
466 own account. When invoked by services which pass untrusted data to
467 Exim, this might be an issue. Set this option in main configuration
468 AND make fixes to the calling application, such as using `--` to stop
469 processing options.
470
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JH
471JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
472 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
473 responses to those, into a single TLS record each way (this usually means
474 a single packet). As a side issue, smtp_enforce_sync now works on TLS
475 connections.
925ac8e4 476
6600985a
PP
477PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
478 affects you only if you're dancing at the edge of the param size limits.
479 If you are, and this message makes sense to you, then: raise the
480 configured limit or use OpenSSL 1.1. Nothing we can do for older
481 versions.
482
ac4d558b
JH
483JH/14 For the "sock" variant of the malware scanner interface, accept an empty
484 cmdline element to get the documented default one. Previously it was
485 inaccessible.
486
e69636bc
JH
487JH/15 Fix a crash in the smtp transport caused when two hosts in succession
488 are unsuable for non-message-specific reasons - eg. connection timeout,
489 banner-time rejection.
490
a843a57e
JH
491JH/16 Fix logging of delivery remote port, when specified by router, under
492 callout/hold.
493
8e041ae0
PP
494PP/06 Repair manualroute's ability to take options in any order, even if one
495 is the name of a transport.
833c70bc
PP
496 Fixes bug 2140.
497
35a04365
HSHR
498HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
499
4226691b
JH
500JH/17 Change the list-building routines interface to use the expanding-string
501 triplet model, for better allocation and copying behaviour.
502
d185889f
JH
503JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
504 Previously it was constructed the first time a possibly-matching string
505 was met in the configuration file input during startup; now it is done
506 during compilation.
507
0a6c178c
JH
508JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
509 compatible one, to avoid the (poorly documented) possibility of a config
510 file in the working directory redirecting the DB files, possibly correpting
02745400 511 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 512
fae8970d
JH
513JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
514 cache-hot. Previously, although the result was properly cached, the
515 initial verify call returned a defer.
516
ad1a76fe 517JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
518 the main verify for receipient in uncached-mode.
519
ad1a76fe
JH
520JH/22 Retire historical build files to an "unsupported" subdir. These are
521 defined as "ones for which we have no current evidence of testing".
522
135e9496
JH
523JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
524 if present. Previously it was ignored.
525
f2ed27cf
JH
526JH/24 Start using specified-initialisers in C structure init coding. This is
527 a C99 feature (it's 2017, so now considered safe).
528
7eb0e5d2
JH
529JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
530 if was a fixed-sized field and bitmask ops via macros; it is now more
531 extensible.
532
4f9f4be4
533PP/07 GitHub PR 56: Apply MariaDB build fix.
534 Patch provided by Jaroslav Škarvada.
535
dc4de9cc
PP
536PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
537 during Coverity cleanups [4.87 JH/47]
538 Diagnosis and fix provided by Michael Fischer v. Mollard.
539
ea18931d
JH
540JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
541 the right size to place the terminating semicolon on its own folded
542 line, the header hash was calculated to an incorrect value thanks to
543 the (relaxed) space the fold became.
544
0768462d 545HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
546 and confused the parent.
547
848214f7
JH
548JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
549 which could crash as a result. This could lead to undeliverable messages.
550
9e0ed81f
JH
551JH/28 Logging: "next input sent too soon" now shows where input was truncated
552 for log purposes.
553
2540f2f8
JH
554JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
555 matters on fast-turnover and PID-randomising systems, which were getting
556 out-of-order delivery.
557
e5ab0ba9
JH
558JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
559 a possibly-overlapping copy. The symptom was that "Remote host closed
560 connection in response to HELO" was logged instead of the actual 4xx
561 error for the HELO.
562
e99a3a6c
JH
563JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
564 Previously only that bufferd was discarded, resulting in SYMTP command
565 desynchronisation.
566
18067c75
JH
567JH/32 DKIM: when a message has multiple signatures matching an identity given
568 in dkim_verify_signers, run the dkim acl once for each. Previously only
569 one run was done. Bug 2189.
570
72934ba7
JH
571JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
572 "panic the current process" to "deliberately defer". The panic log is
573 still written with the problem list name; the mail and reject logs now
574 get a temp-reject line for the message that was being handled, saying
575 something like "domains check lookup or other defer". The SMTP 451
576 message is still "Temporary local problem".
577
625667b6
JH
578JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
579 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
580 freed. CVE-2017-16943.
581
582HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
583 from SMTP input. Previously it was always done; now only done for DATA
584 and not BDAT commands. CVE-2017-16944.
625667b6 585
d21bf202
JH
586JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
587 to the message (such as an overlong header line). Previously this was
588 not done and we did not exit BDAT mode. Followon from the previous item
589 though a different problem.
590
acfc18c3 591
fd047340 592Exim version 4.89
acfc18c3 593-----------------
4c57a40e 594
9427e879 595JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 596 than -2003 did; needs libidn2 in addition to libidn.
fd047340 597
7b283890
JH
598JH/02 The path option on a pipe transport is now expanded before use.
599
4c57a40e
PP
600PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
601 Patch provided by "Björn", documentation fix added too.
602
5d036699
JH
603JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
604 missing a wire-to-host endian conversion.
605
f4630439
JH
606JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
607 close after a BDAT command line could be taken as a following command,
608 giving a synch failure. Fix by only checking for synch immediately
609 before acknowledging the chunk.
610
f988ce57
JS
611PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
612 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
613 macro. Patches provided by Josh Soref.
614
bd8fbe36
JH
615JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
616 Previously we did not; the RFC seems ambiguous and VRFY is not listed
617 by IANA as a service extension. However, John Klensin suggests that we
618 should.
619
620JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
621 the dkim code may be unix-mode line endings rather than smtp wire-format
622 CRLF, so prepend a CR to any bare LF.
fd047340 623
bd8fbe36 624JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
625 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
626
bd8fbe36
JH
627JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
628 the first were themselves being wrongly included in the feed into dkim
629 processing; with most chunk sizes in use this resulted in an incorrect
630 body hash calculated value.
631
eea19017
JH
632JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
633 DKIM signature block, for verification. Although advised against by
634 standards it is specifically not ruled illegal.
635
44e6651b
JH
636JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
637
638JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
639 missing a body hash (the bh= tag).
640
641JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
642 It seems that HAProxy sends the Proxy Protocol information in clear and
643 only then does a TLS startup, so do the same.
644
645JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
646 TCP connections (such as for Spamd) unless the daemon successfully set
647 Fast Open mode on its listening sockets. This fixes breakage seen on
648 too-old kernels or those not configured for Fast Open, at the cost of
649 requiring both directions being enabled for TFO, and TFO never being used
650 by non-daemon-related Exim processes.
651
652JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
653 endings, at least on the first header line. Try to canonify any that get
654 past that check, despite the cost.
655
b6040544
JH
656JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
657 now limited to an arbitrary five deep, while parsing addresses with the
658 strip_excess_angle_brackets option enabled.
659
f700ea4d
PP
660PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
661 instead leave the unprompted TLS handshake in socket buffer for the
662 TLS library to consume.
663
da88acae
PP
664PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
665
f6ef9370
PP
666PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
667
90341c71
JH
668JH/16 Drop variables when they go out of scope. Memory management drops a whole
669 region in one operation, for speed, and this leaves assigned pointers
670 dangling. Add checks run only under the testsuite which checks all
671 variables at a store-reset and panics on a dangling pointer; add code
672 explicitly nulling out all the variables discovered. Fixes one known
673 bug: a transport crash, where a dangling pointer for $sending_ip_address
674 originally assigned in a verify callout, is re-used.
675
1ec2ab36
PP
676PP/06 Drop '.' from @INC in various Perl scripts.
677
678PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
679
680PP/08 Reduce a number of compilation warnings under clang; building with
681 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
682 should be warning-free.
683
8b2b9480
PP
684JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
685
686HS/01 Fix portability problems introduced by PP/08 for platforms where
687 realloc(NULL) is not equivalent to malloc() [SunOS et al].
688
d953610f
HSHR
689HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
690 chunk. This allows us to accept broken chunked messages. We need a more
691 general solution here.
692
7dc5f827
PP
693PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
694 already-broken messages in the queue.
695
4bb432cb
PP
696JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
697
3b1a84c8
PP
698JH/19 Fix reference counting bug in routing-generated-address tracking.
699
902fbd69 700
8d042305
JH
701Exim version 4.88
702-----------------
4c57a40e 703
9094b84b
JH
704JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
705 supports it and a size is available (ie. the sending peer gave us one).
8d042305 706
03d5892b
JH
707JH/02 The obsolete acl condition "demime" is removed (finally, after ten
708 years of being deprecated). The replacements are the ACLs
709 acl_smtp_mime and acl_not_smtp_mime.
710
4b0fe319
JH
711JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
712 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
713 or even an in-clear connection were permitted. Now, if the host lookup
714 was dnssec and dane was requested then the host is only used if the
715 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
716 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
717 if one fails this test.
718 This means that a poorly-configured remote DNS will make it incommunicado;
719 but it protects against a DNS-interception attack on it.
720
789f8a4f
JH
721JH/04 Bug 1810: make continued-use of an open smtp transport connection
722 non-noisy when a race steals the message being considered.
723
23bb6982 724JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 725 self-signed certificate for inbound TLS connections.
23bb6982 726
0bd1b1ed 727JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 728 in rewrites and routers.
0bd1b1ed 729
20b9a2dc
JH
730JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
731 and logged a warning sing 4.83; now they are a configuration file error.
732
05392bbc
JH
733JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
734 (lacking @domain). Apply the same qualification processing as RCPT.
735
1a6230a3
JH
736JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
737
cfab9d68
JH
738JH/10 Support ${sha256:} applied to a string (as well as the previous
739 certificate).
740
98c82a3d
JH
741JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
742 a cutthrough deliver is pending, as we always want to make a connection.
743 This also avoids re-routing the message when later placing the cutthrough
744 connection after a verify cache hit.
745 Do not update it with the verify result either.
746
747JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
748 when routing results in more than one destination address.
749
ae8386f0
JH
750JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
751 signing (which inhibits the cutthrough capability). Previously only
752 the presence of an option was tested; now an expansion evaluating as
753 empty is permissible (obviously it should depend only on data available
754 when the cutthrough connection is made).
755
0d9fa8c0
JH
756JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
757 the relevant preceding SMTP command did not note the pipelining mode.
758
3581f321
JH
759JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
760 Previously they were not counted.
761
ef3a1a30
JH
762JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
763 as one having no matching records. Previously we deferred the message
764 that needed the lookup.
765
4c04137d 766JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
767 distinguished as "(=".
768
1435d4b2
JH
769JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
770 for missing MX records. Previously it only worked for missing A records.
771
eea0defe
JB
772JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
773
774JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
775 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 776
4c04137d 777JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
778 even for a "none" policy. Patch from Tony Meyer.
779
1c788856
JH
780JH/22 Fix continued use of a connection for further deliveries. If a port was
781 specified by a router, it must also match for the delivery to be
782 compatible.
783
e3b1f624
JH
784JH/23 Bug 1874: fix continued use of a connection for further deliveries.
785 When one of the recipients of a message was unsuitable for the connection
786 (has no matching addresses), we lost track of needing to mark it
787 deferred. As a result mail would be lost.
788
a57ce043
JH
789JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
790
f59aaaaa 791JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
792 takes up less space and should be simpler to maintain. Merge the ACL
793 condition decode tables also, with similar effect.
d7bed771 794
d1f9fb42
JH
795JH/26 Fix problem with one_time used on a redirect router which returned the
796 parent address unchanged. A retry would see the parent address marked as
797 delivered, so not attempt the (identical) child. As a result mail would
798 be lost.
799
92b0827a
JH
800JH/27 Fix a possible security hole, wherein a process operating with the Exim
801 UID can gain a root shell. Credit to http://www.halfdog.net/ for
802 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
803 itself :(
804
ddf1b11a
JH
805JH/28 Enable {spool,log} filesystem space and inode checks as default.
806 Main config options check_{log,spool}_{inodes,space} are now
807 100 inodes, 10MB unless set otherwise in the configuration.
808
3cc3f762
JH
809JH/29 Fix the connection_reject log selector to apply to the connect ACL.
810 Previously it only applied to the main-section connection policy
811 options.
812
ae5afa61
JH
813JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
814
317e40ac
PP
815PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
816 by me. Added RFC7919 DH primes as an alternative.
817
8b0fb68e
PP
818PP/02 Unbreak build via pkg-config with new hash support when crypto headers
819 are not in the system include path.
820
ad7fc6eb 821JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 822 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
823 Exim did stdio operations after fclose. This was exposed by a recent
824 change which nulled out the file handle after the fclose.
ad7fc6eb 825
ee5b1e28
JH
826JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
827 signed directly by the cert-signing cert, rather than an intermediate
828 OCSP-signing cert. This is the model used by LetsEncrypt.
829
5ddc9771
JH
830JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
831
8d73599f
JH
832HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
833 an incoming connection.
834
446415f5
HSHR
835HS/02 Bug 1802: Do not half-close the connection after sending a request
836 to rspamd.
837
8e53a4fc
HSHR
838HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
839 fallback to "prime256v1".
8d042305 840
87cb4a16 841JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 842 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
843
844
0d9b78be
JH
845Exim version 4.87
846-----------------
4c57a40e 847
82d14d6a
JH
848JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
849 and 3.4.4 - once the server is enabled to respond to an OCSP request
850 it does even when not requested, resulting in a stapling non-aware
851 client dropping the TLS connection.
0d9b78be 852
6c6d6e48
TF
853TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
854 support variable-length bit vectors. No functional change.
855
ac881e27
TF
856TF/02 Improve the consistency of logging incoming and outgoing interfaces.
857 The I= interface field on outgoing lines is now after the H= remote
858 host field, same as incoming lines. There is a separate
859 outgoing_interface log selector which allows you to disable the
860 outgoing I= field.
861
c8899c20
JH
862JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
863 If not running log_selector +smtp_connection the mainlog would be held
864 open indefinitely after a "too many connections" event, including to a
865 deleted file after a log rotate. Leave the per net connection logging
866 leaving it open for efficiency as that will be quickly detected by the
867 check on the next write.
868
f1b81d81
HSHR
869HS/01 Bug 1671: Fix post transport crash.
870 Processing the wait-<transport> messages could crash the delivery
871 process if the message IDs didn't exist for some reason. When
872 using 'split_spool_directory=yes' the construction of the spool
873 file name failed already, exposing the same netto behaviour.
874
f38917cc
JH
875JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
876 mime_regex ACL conditions.
877
895fbaf2
JH
878JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
879 to DSN fail messages (bounces): remote IP, remote greeting, remote response
880 to HELO, local diagnostic string.
881
805bb5c3
JH
882JH/05 Downgrade message for a TLS-certificate-based authentication fail from
883 log line to debug. Even when configured with a tls authenticator many
884 client connections are expected to not authenticate in this way, so
885 an authenticate fail is not an error.
886
56c2a7be
HSHR
887HS/02 Add the Exim version string to the process info. This way exiwhat
888 gives some more detail about the running daemon.
889
4c04137d 890JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
891 matter for fast-change records such as DNSBLs.
892
6f6dedcc
JH
893JH/07 Bug 1678: Always record an interface option value, if set, as part of a
894 retry record, even if constant. There may be multiple transports with
895 different interface settings and the retry behaviour needs to be kept
896 distinct.
897
0f557e90
JH
898JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
899
900JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
901
ec0eb1a3
JH
902JH/10 Bug 840: fix log_defer_output option of pipe transport
903
41e93589
JH
904JH/11 Bug 830: use same host for all RCPTS of a message, even under
905 hosts_randomize. This matters a lot when combined with mua_wrapper.
906
98b98887 907JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
908 ${quote_pgsql:<string>} operator.
909
98b98887
JH
910JH/13 Bug 1708: avoid misaligned access in cached lookup.
911
858e91c2
JH
912JH/14 Change header file name for freeradius-client. Relevant if compiling
913 with Radius support; from the Gentoo tree and checked under Fedora.
914
915JH/15 Bug 1712: Introduce $prdr_requested flag variable
916
6ff55e50
JH
917JH/16 Bug 1714: Permit an empty string as expansion result for transport
918 option transport_filter, meaning no filtering.
919
3b957582
JB
920JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
921
23f3dc67
JH
922JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
923 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 924 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
925 If a server certificate is not supplied (via tls_certificate) an error is
926 logged, and clients will find TLS connections fail on startup. Presumably
927 they will retry in-clear.
928 Packagers of Exim are strongly encouraged to create a server certificate
929 at installation time.
930
240c288f
JH
931HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
932 with the $config_file variable.
933
5ef5dd52
JB
934JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
935 in transport context, after the attempt, and per-recipient. The latter type
936 is per host attempted. The event data is the error message, and the errno
937 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 938 and the trailing two digits of the smtp 4xx response.
5ef5dd52 939
e161710d
GF
940GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
941 to write to mainlog (or rejectlog, paniclog) in the window between file
942 creation and permissions/ownership being changed. Particularly affects
943 installations where exicyclog is run as root, rather than exim user;
944 result is that the running daemon panics and dies.
945
a159f203
JH
946JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
947
7f06582c
JH
948JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
949 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
950 "pri" and "weight". Note that the previous implicit priority given by the
951 list order is no longer honoured.
952
4c04137d 953JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
954 for DKIM processing.
955
f0989ec0
JH
956JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
957 by defining SUPPORT_SOCKS.
74f150bf 958
cee5f132
JH
959JH/26 Move PROXY support from Experimental to mainline, enabled for a build
960 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
961 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
962 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 963
8c5d388a
JH
964JH/27 Move Internationalisation support from Experimental to mainline, enabled
965 for a build by defining SUPPORT_I18N
966
2d8d625b
JH
967JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
968 of the query string, and make ${quote_redis:} do that quoting.
969
0cbf2b82
JH
970JH/29 Move Events support from Experimental to mainline, enabled by default
971 and removable for a build by defining DISABLE_EVENT.
972
f2f2c91b
JH
973JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
974
ce325893
JH
975JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
976 cached by the daemon.
977
de78e2d5
JH
978JH/32 Move Redis support from Experimental to mainline, enabled for a build
979 by defining LOOKUP_REDIS. The libhiredis library is required.
980
379ba7d0
JH
981JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
982 keys are given for lookup.
983
f444c2c7
JH
984JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
985 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
986 only supported when built with TLS support. The PolarSSL SHA routines
987 are still used when the TLS library is too old for convenient support.
f444c2c7 988
a57b6200
JH
989JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
990 openssl_options), for security. OpenSSL forces this from version 1.1.0
991 server-side so match that on older versions.
992
07c73177 993JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 994 allocation for $value could be released as the expansion processing
07c73177 995 concluded, but leaving the global pointer active for it.
fa01e4f8 996
4f6ae5c3
JH
997JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
998 and to use the domains and local_parts ACL conditions.
999
1bc460a6
JH
1000JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1001 incorrectly not doubled on cutthrough transmission, hence seen as a
1002 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1003 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1004 via the normal store-and-forward channel. This could result in duplicates
1005 received - but deduplicating mailstores were liable to retain only the
1006 initial truncated version.
1007
ab9152ff 1008JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1009
67e87fcf
JH
1010JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1011
ab9152ff
JH
1012JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1013 we're in there, support oversigning also; bug 1309.
1014
af483912
JH
1015JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1016
bc3c7bb7 1017HS/04 Add support for keep_environment and add_environment options.
df3def24 1018
13559da6
JH
1019JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1020 either intentional arithmetic overflow during PRNG, or testing config-
1021 induced overflows.
1022
59eaad2b
JH
1023JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1024 delivery resulted in actual delivery. Cancel cutthrough before DATA
1025 stage.
1026
f9334a28
JH
1027JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1028 rejects a recipient: pass the reject to the originator.
1029
dc8091e7
JH
1030JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1031 Many were false-positives and ignorable, but it's worth fixing the
1032 former class.
1033
dfe7d917
JH
1034JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1035 for the new environment-manipulation done at startup. Move the routines
1036 from being local to tls.c to being global via the os.c file.
1037
93cc2d6e
JH
1038JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1039 an extract embedded as result-arg for a map, the first arg for extract
1040 is unavailable so we cannot tell if this is a numbered or keyed
1041 extraction. Accept either.
1042
13559da6 1043
9c695f6d
JH
1044Exim version 4.86
1045-----------------
4c57a40e 1046
9c695f6d
JH
1047JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1048 expanded.
1049
506900af
JH
1050JH/02 The smtp transport option "multi_domain" is now expanded.
1051
ad07e9ad
JH
1052JH/03 The smtp transport now requests PRDR by default, if the server offers
1053 it.
1054
01a4a5c5 1055JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1056 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1057 can be used to disable this per-host. The build option
1058 EXPERIMENTAL_CERTNAMES is withdrawn.
1059
cb1d7830 1060JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1061 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1062 For GnuTLS, only version 3.0.20 or later.
1063
610ff438 1064JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1065 (but not required) by default. The verification status is now logged by
1066 default, for both outbound TLS and client-certificate supplying inbound
1067 TLS connections
610ff438 1068
f926e272
JH
1069JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1070 sites use this now.
1071
50dc7409
JH
1072JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1073 Status Notification (bounce) messages are now MIME format per RFC 3464.
1074 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1075 under the control of the dsn_advertise_hosts option, and routers may
1076 have a dsn_lasthop option.
1077
0f0c8159
JH
1078JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1079 default, modifiable by a malware= option. The list separator for
23763898 1080 the options can now be changed in the usual way. Bug 68.
4e71661f 1081
1ad6489e
JH
1082JH/10 The smtp_receive_timeout main option is now expanded before use.
1083
aeaf5db3
JH
1084JH/11 The incoming_interface log option now also enables logging of the
1085 local interface on delivery outgoing connections.
1086
5032d1cf
JH
1087JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1088 if the interface and destination host and port all match.
1089
7e8360e6
JH
1090JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1091 /defer_ok option.
1092
c5f280e2
AL
1093JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1094 Patch from Andrew Lewis.
1095
fd4d8871 1096JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1097 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1098 modifiers per server. Patch originally by <rommer@active.by>.
1099
1100JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1101 and remote servers. Remote servers can be IPv6 addresses, and
1102 specify a port-range.
fd4d8871 1103
23763898
JH
1104JH/17 Bug 68: The spamd_address main option now supports an optional
1105 timeout value per server.
1106
2ad78978
JH
1107JH/18 Bug 1581: Router and transport options headers_add/remove can
1108 now have the list separator specified.
1109
8a512ed5 1110JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1111 option values.
8a512ed5 1112
82c0c8ea 1113JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1114 under OpenSSL.
1115
cc00f4af
JH
1116JH/21 Support for the A6 type of dns record is withdrawn.
1117
82c0c8ea
JH
1118JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1119 rather than the verbs used.
1120
b980ed83
JH
1121JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1122 from 255 to 1024 chars.
1123
6c9ed72e
JH
1124JH/24 Verification callouts now attempt to use TLS by default.
1125
cfab9d68 1126HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1127 are generic router options now. The defaults didn't change.
50dc7409 1128
f846c8f5
JH
1129JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1130 Original patch from Alexander Shikoff, worked over by JH.
1131
fd4c285c
HSHR
1132HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1133 files if ZCAT_COMMAND is not executable.
1134
4c04137d 1135JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1136
d2a2c69b
JH
1137JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1138
8241d8dd
JH
1139JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1140 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1141 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1142 (and we were inconsistent anyway for A-only vs AAAA+A).
1143
1f12df4d
JH
1144JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1145
1f155f8e
JH
1146JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1147 when evaluating $sender_host_dnssec.
1148
1705dd20
JH
1149JH/31 Check the HELO verification lookup for DNSSEC, adding new
1150 $sender_helo_dnssec variable.
1151
038597d2
PP
1152JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1153
474f71bf
JH
1154JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1155
7137ca4b
JH
1156JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1157
dcb1095c
JH
1158JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1159 documented as working, but never had. Support all but $spam_report.
1160
2f460950
JH
1161JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1162 added for tls authenticator.
1163
2f680c0c
HSHR
1164HS/03 Add perl_taintmode main config option
1165
9c695f6d 1166
e449c3b0
TL
1167Exim version 4.85
1168-----------------
4c57a40e 1169
e449c3b0
TL
1170TL/01 When running the test suite, the README says that variables such as
1171 no_msglog_check are global and can be placed anywhere in a specific
1172 test's script, however it was observed that placement needed to be near
1173 the beginning for it to behave that way. Changed the runtest perl
1174 script to read through the entire script once to detect and set these
1175 variables, reset to the beginning of the script, and then run through
1176 the script parsing/test process like normal.
1177
ac20058f
TL
1178TL/02 The BSD's have an arc4random API. One of the functions to induce
1179 adding randomness was arc4random_stir(), but it has been removed in
1180 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1181 function when detected.
1182
a9b8ec8b
JH
1183JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1184 cause callback expansion.
1185
6286d7c4
TL
1186TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1187 syntax errors in an expansion can be treated as a string instead of
1188 logging or causing an error, due to the internal use of bool_lax
1189 instead of bool when processing it.
1190
0f06b4f2 1191JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1192 server certificates when making smtp deliveries.
1193
be36e572
JH
1194JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1195
ac4ef9bd
JH
1196JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1197
0eb51736
TL
1198TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1199
c713ca4b
TL
1200TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1201 Merged patch from Sebastian Wiedenroth.
e449c3b0 1202
bd21a787
WB
1203JH/05 Fix results-pipe from transport process. Several recipients, combined
1204 with certificate use, exposed issues where response data items split
1205 over buffer boundaries were not parsed properly. This eventually
1206 resulted in duplicates being sent. This issue only became common enough
4c04137d 1207 to notice due to the introduction of connection certificate information,
bd21a787
WB
1208 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1209
8bc732e8
JH
1210JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1211 size buffer was used, resulting in syntax errors when an expansion
1212 exceeded it.
1213
a7fec7a7
JH
1214JH/07 Add support for directories of certificates when compiled with a GnuTLS
1215 version 3.3.6 or later.
1216
4c04137d 1217JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1218 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1219 both become "event_action", the variables become $event_name, $event_data
aec45841 1220 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1221 routers, transports and related events. The tls:cert event is now also
1222 raised for inbound connections, if the main configuration event_action
1223 option is defined.
774ef2d7 1224
eca4debb
TL
1225TL/06 In test suite, disable OCSP for old versions of openssl which contained
1226 early OCSP support, but no stapling (appears to be less than 1.0.0).
1227
8d692470
JH
1228JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1229 server certificate names available under the smtp transport option
1230 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1231 matches.
1232
e9477a08
JH
1233JH/10 Time-related extraction expansions from certificates now use the main
1234 option "timezone" setting for output formatting, and are consistent
1235 between OpenSSL and GnuTLS compilations. Bug 1541.
1236
ad4c5ff9
JH
1237JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1238 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1239
1240JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1241 include certificate info, eximon was claiming there were spoolfile
1242 syntax errors.
1243
3394b36a 1244JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1245
1246JH/14 Log delivery-related information more consistently, using the sequence
1247 "H=<name> [<ip>]" wherever possible.
1248
3394b36a
TL
1249TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1250 are problematic for Debian distribution, omit them from the release
1251 tarball.
1252
ad4c5ff9
JH
1253JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1254
4c04137d 1255JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1256 Bug 1561.
1257
1258JH/17 Fix a null-indirection in certextract expansions when a nondefault
1259 output list separator was used.
1260
8bc732e8 1261
1f0ebb98
TL
1262Exim version 4.84
1263-----------------
09728d20
TL
1264TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1265 checkers that were complaining about end of non-void function with no
1266 return.
1f0ebb98 1267
a612424f 1268JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1269 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1270
1271JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1272
1273TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1274 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1275
1f0ebb98 1276
c0e56233
TF
1277Exim version 4.83
1278-----------------
1279
1280TF/01 Correctly close the server side of TLS when forking for delivery.
1281
1282 When a message was received over SMTP with TLS, Exim failed to clear up
1283 the incoming connection properly after forking off the child process to
1284 deliver the message. In some situations the subsequent outgoing
1285 delivery connection happened to have the same fd number as the incoming
1286 connection previously had. Exim would try to use TLS and fail, logging
1287 a "Bad file descriptor" error.
1288
7245734e
TF
1289TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1290 utilities have not been installed.
1291
fd5dad68
JH
1292JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1293 temporary space as the ACL may create new global variables.
1294
5428a946
TL
1295TL/01 LDAP support uses per connection or global context settings, depending
1296 upon the detected version of the libraries at build time.
1297
a3c86431
TL
1298TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1299 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1300 were a direct connection from the outside internet. PPv2 support was
1301 updated based on HAProxy spec change in May 2014.
a3c86431 1302
aa26e137
JH
1303JH/02 Add ${listextract {number}{list}{success}{fail}}.
1304
5a1b8443
WB
1305TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1306 Properly escape header and check for NULL return.
1307
72c9e342
PP
1308PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1309 not dns_use_dnssec.
1310
76f44207
WB
1311JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1312
770747fd
MFM
1313TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1314 characters in header names, implemented as a verify condition.
1315 Contributed by Michael Fischer v. Mollard.
1316
8ddef691 1317TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1318 results permerror and temperror. Previous values are deprecated but
1319 still accepted. In a future release, err_perm and err_temp will be
1320 completely removed, which will be a backward incompatibility if the
1321 ACL tests for either of these two old results. Patch contributed by
8ddef691 1322 user bes-internal on the mailing list.
c0e56233 1323
b9c2e32f
AR
1324JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1325
e45a1c37
JH
1326JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1327 selectors, in both main and reject logs.
1328
67d81c10
JH
1329JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1330 failed delivery.
1331
b1f8e4f8
JH
1332JH/07 Add malware type "sock" for talking to simple daemon.
1333
511a6c14 1334JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1335
1336JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1337 routers/transports under cutthrough routing.
214042d2 1338
51c7471d
JH
1339JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1340 numbers. Touch up "bool" conditional to keep the same definition.
1341
3695be34
TL
1342TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1343
1e06383a
TL
1344JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1345
76146973
JH
1346JH/12 Expand items in router/transport headers_add or headers_remove lists
1347 individually rather than the list as a whole. Bug 1452.
1348
1349 Required for reasonable handling of multiple headers_ options when
1350 they may be empty; requires that headers_remove items with embedded
1351 colons must have them doubled (or the list-separator changed).
1352
8c8b8274
TL
1353TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1354 view the policy declared in the DMARC record. Currently, $dmarc_status
1355 is a combined value of both the record presence and the result of the
1356 analysis.
b1f8e4f8 1357
35aba663
JH
1358JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1359
8c51eead 1360JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1361 dnslookup router and the smtp transport (applying to the forward
1362 lookup).
8c51eead 1363
deae092e
HS
1364TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1365 of ldap servers used for a specific lookup. Patch provided by Heiko
1366 Schlichting.
35aba663 1367
fd3b6a4a 1368JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1369 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1370
8d91c6dc
LT
1371TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1372 Patch submitted by Lars Timman.
1373
2b4a568d
JH
1374JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1375
d2af03f4
HS
1376TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1377 Requires trusted mode and valid format message id, aborts otherwise.
1378 Patch contributed by Heiko Schlichting.
1379
9d1c15ef
JH
1380JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1381 certextract with support for various fields. Bug 1358.
1382
44662487
JH
1383JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1384 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1385 hosts_request_ocsp.
1386
ed3bba5f 1387JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1388 operate on certificate variables to give certificate fingerprints
9ef9101c 1389 Also new ${sha256:cert_variable}.
44662487 1390
8ccd00b1
JH
1391JH/23 The PRDR feature is moved from being Experimental into the mainline.
1392
8ded8589
TL
1393TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1394 Christian Aistleitner.
1395
f2de3a33
JH
1396JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1397
6eb02f88
TL
1398TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1399 file. Patch from Wolfgang Breyha.
1400
00bff6f6
JH
1401JH/25 Expand the coverage of the delivery $host and $host_address to
1402 client authenticators run in verify callout. Bug 1476.
1403
071c51f7
JH
1404JH/26 Port service names are now accepted for tls_on_connect_ports, to
1405 align with daemon_smtp_ports. Bug 72.
1406
a6d4c44e
TF
1407TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1408 support and error reporting did not work properly.
1409
3ae173e7
ACK
1410TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1411 and is readable. Patch from Andrew Colin Kissa.
1412
c13d09b8
TL
1413TL/14 Enhance documentation of ${run expansion and how it parses the
1414 commandline after expansion, particularly in the case when an
1415 unquoted variable expansion results in an empty value.
1416
0df4ab80
JH
1417JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1418
66be95e0
PP
1419PP/02 Fix internal collision of T_APL on systems which support RFC3123
1420 by renaming away from it. Addresses GH issue 15, reported by
1421 Jasper Wallace.
1422
1bd0d12b
JH
1423JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1424
0de7239e
TL
1425TL/15 SECURITY: prevent double expansion in math comparison functions
1426 (can expand unsanitized data). Not remotely exploitable.
1427 CVE-2014-2972
1428
fd3b6a4a 1429
2c422e6f 1430Exim version 4.82
98a90c36
PP
1431-----------------
1432
1433PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1434
12f69989
PP
1435PP/02 Make -n do something, by making it not do something.
1436 When combined with -bP, the name of an option is not output.
1437
54c90be1
PP
1438PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1439 by GnuTLS.
1440
1f4a55da
PP
1441PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1442 $sender_host_name and config options to manage this, and basic check
1443 routines.
1444
13363eba 1445PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1446
66645890 1447PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1448 (Only plugin which currently uses this is kerberos4, which nobody should
1449 be using, but we should make it available and other future plugins might
1450 conceivably use it, even though it would break NAT; stuff *should* be
1451 using channel bindings instead).
66645890 1452
a3fb9793 1453PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1454 name; added for Sendmail compatibility; requires admin caller.
1455 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1456 just ignore it); requires trusted caller.
a3fb9793 1457 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1458 Bugzilla 1117.
a3fb9793 1459
d27f98fe 1460TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1461
6822b909
TL
1462TL/02 Add +smtp_confirmation as a default logging option.
1463
e7568d51
TL
1464TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1465 Patch by Magnus Holmgren from 2007-02-20.
1466
ae0e32ee 1467TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1468 Bugzilla 1283 - Spec typo.
97f42f10 1469 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1470
1471TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1472
e2658fff
TL
1473TL/06 Add Experimental DMARC support using libopendmarc libraries.
1474
83712b39
TL
1475TL/07 Fix an out of order global option causing a segfault. Reported to dev
1476 mailing list by by Dmitry Isaikin.
1477
976b7e9f
JH
1478JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1479
be4a1376
JH
1480JH/02 Support "G" suffix to numbers in ${if comparisons.
1481
ec4b68e5
PP
1482PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1483
d7148a07
NM
1484NM/01 Bugzilla 1197 - Spec typo
1485 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1486
585121e2 1487JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1488
2519e60d
TL
1489PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1490 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1491 function.
a5f239e4 1492
13d08c90
PP
1493PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1494 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1495
bef3ea7f
JH
1496JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1497 "acl {{name}{arg}...}", and optional args on acl condition
1498 "acl = name arg..."
a5f239e4 1499
846726c5
JH
1500JH/05 Permit multiple router/transport headers_add/remove lines.
1501
3a796370
JH
1502JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1503
ea722490 1504JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1505 Performance patch from Paul Fisher. Bugzilla 1262.
1506
b1b05573
JH
1507JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1508 Bugzilla 884.
1509
362145b5
JH
1510JH/09 Add $headers_added variable, with content from use of ACL modifier
1511 add_header (but not yet added to the message). Bugzilla 199.
1512
3c0a92dc
JH
1513JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1514 Pulled from Bugzilla 817 by Wolfgang Breyha.
1515
6d7c6175
PP
1516PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1517 CVE-2012-5671
e78e6ecf 1518 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1519
6f123593
JH
1520JH/11 Add A= logging on delivery lines, and a client_set_id option on
1521 authenticators.
1522
c8e2fc1e
JH
1523JH/12 Add optional authenticated_sender logging to A= and a log_selector
1524 for control.
1525
005ac57f
PP
1526PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1527
3f1df0e3
PP
1528PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1529 advertise SMTP AUTH mechanism to us, instead of a generic
1530 protocol violation error. Also, make Exim more robust to bad
1531 data from the Dovecot auth socket.
1532
67bd1ab3
TF
1533TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1534
1535 When a queue runner is handling a message, Exim first routes the
1536 recipient addresses, during which it prunes them based on the retry
1537 hints database. After that it attempts to deliver the message to
1538 any remaining recipients. It then updates the hints database using
1539 the retry rules.
1540
1541 So if a recipient address works intermittently, it can get repeatedly
1542 deferred at routing time. The retry hints record remains fresh so the
1543 address never reaches the final cutoff time.
1544
1545 This is a fairly common occurrence when a user is bumping up against
1546 their storage quota. Exim had some logic in its local delivery code
1547 to deal with this. However it did not apply to per-recipient defers
1548 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1549
1ddeb334
TF
1550 This change adds a proper retry rule check during routing so that the
1551 final cutoff time is checked against the message's age. We only do
1552 this check if there is an address retry record and there is not a
1553 domain retry record; this implies that previous attempts to handle
1554 the address had the retry_use_local_parts option turned on. We use
1555 this as an approximation for the destination being like a local
1556 delivery, as in LMTP.
67bd1ab3
TF
1557
1558 I suspect this new check makes the old local delivery cutoff check
1559 redundant, but I have not verified this so I left the code in place.
1560
326cdc37
TF
1561TF/02 Correct gecos expansion when From: is a prefix of the username.
1562
1563 Test 0254 submits a message to Exim with the header
1564
1565 Resent-From: f
1566
1567 When I ran the test suite under the user fanf2, Exim expanded
1568 the header to contain my full name, whereas it should have added
1569 a Resent-Sender: header. It erroneously treats any prefix of the
1570 username as equal to the username.
1571
1572 This change corrects that bug.
1573
f62514b3
GF
1574GF/01 DCC debug and logging tidyup
1575 Error conditions log to paniclog rather than rejectlog.
1576 Debug lines prefixed by "DCC: " to remove any ambiguity.
1577
eb505532
TF
1578TF/03 Avoid unnecessary rebuilds of lookup-related code.
1579
14c7b357
PP
1580PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1581 Bug spotted by Jeremy Harris; was flawed since initial commit.
1582 Would have resulted in OCSP responses post-SNI triggering an Exim
1583 NULL dereference and crash.
1584
94eaf700
PP
1585JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1586
6f5a440a
PP
1587PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1588 Bug detection, analysis and fix by Samuel Thibault.
1589 Bugzilla 1331, Debian bug #698092.
1590
514ee161
SC
1591SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1592
fd98a5c6
JH
1593JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1594 Server implementation by Todd Lyons, client by JH.
1595 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1596 config variable "prdr_enable" controls whether the server
1597 advertises the facility. If the client requests PRDR a new
1598 acl_data_smtp_prdr ACL is called once for each recipient, after
1599 the body content is received and before the acl_smtp_data ACL.
4c04137d 1600 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1601 on the smtp transport, and the server advertisement.
1602 Default client logging of deliveries and rejections involving
1603 PRDR are flagged with the string "PRDR".
1604
035c7f1e
PP
1605PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1606 fclose(). Diagnosis by Todd Lyons.
1607
ff284120
PP
1608PP/17 Update configure.default to handle IPv6 localhost better.
1609 Patch by Alain Williams (plus minor tweaks).
1610 Bugzilla 880.
1611
26e72755
PP
1612PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1613 This is now consistent with GnuTLS, and is now documented: the
1614 previous undocumented portable approach to treating the option as
1615 unset was to force an expansion failure. That still works, and
1616 an empty string is now equivalent.
1617
0fbd9bff
PP
1618PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1619 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1620 not performing validation itself.
1621
700d22f3
PP
1622PP/20 Added force_command boolean option to pipe transport.
1623 Patch from Nick Koston, of cPanel Inc.
1624
fcc8e047
JH
1625JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1626 Bugzilla 321, 823.
1627
4c04137d 1628TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1629
8c020188
PP
1630PP/21 Fix eximon continuous updating with timestamped log-files.
1631 Broken in a format-string cleanup in 4.80, missed when I repaired the
1632 other false fix of the same issue.
1633 Report and fix from Heiko Schlichting.
1634 Bugzilla 1363.
1635
d13cdd30
PP
1636PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1637 Report from Prashanth Katuri.
1638
e2fbf4a2
PP
1639PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1640 It's SecureTransport, so affects any MacOS clients which use the
1641 system-integrated TLS libraries, including email clients.
1642
f4c1088b
PP
1643PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1644 using a MIME ACL for non-SMTP local injection.
1645 Report and assistance in diagnosis by Warren Baker.
1646
c5c2182f
PP
1647TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1648
73431ca9
JH
1649JH/16 Fix comparisons for 64b. Bugzilla 1385.
1650
2d07a215
TL
1651TL/09 Add expansion variable $authenticated_fail_id to keep track of
1652 last id that failed so it may be referenced in subsequent ACL's.
1653
a30a8861
TL
1654TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1655 Alexander Miroch.
1656
33382dd9
TL
1657TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1658 ldap library initialization, allowing self-signed CA's to be
1659 used. Also properly sets require_cert option later in code by
1660 using NULL (global ldap config) instead of ldap handle (per
1661 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1662
046172e6
TL
1663TL/12 Enhanced documentation in the ratelimit.pl script provided in
1664 the src/util/ subdirectory.
1665
581d7bee 1666TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1667 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1668 EXPERIMENTAL_TPDA.
1669
1670TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1671 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1672 redis_servers = needs to be configured which will be used by the redis
1673 lookup. Patch from Warren Baker, of The Packet Hub.
1674
237b2cf2
TL
1675TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1676
9fc5a352
TL
1677TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1678 hostname or reverse DNS when processing a host list. Used suggestions
1679 from multiple comments on this bug.
1a7b746d 1680
b10e4ec2
TL
1681TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1682
e2cebd74
TL
1683TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1684 Missed a few lines, added it to make the runtest require no keyboard
1685 interaction.
1686
1687TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1688 contains upper case chars. Make router use caseful_local_part.
1689
2519e60d
TL
1690TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1691 support when GnuTLS has been built with p11-kit.
1692
e78e6ecf 1693
4263f395
PP
1694Exim version 4.80.1
1695-------------------
1696
1697PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1698 CVE-2012-5671
2c422e6f 1699 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1700
ea722490 1701
b1770b6e 1702Exim version 4.80
0599f9cf
PP
1703-----------------
1704
1705PP/01 Handle short writes when writing local log-files.
1706 In practice, only affects FreeBSD (8 onwards).
1707 Bugzilla 1053, with thanks to Dmitry Isaikin.
1708
23c7e742
NM
1709NM/01 Bugzilla 949 - Documentation tweak
1710
b322aac8
NM
1711NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1712 improved.
1713
4a891427
NM
1714NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1715
c1e794ba 1716PP/02 Implemented gsasl authenticator.
b322aac8 1717
97753960
PP
1718PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1719
1720PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1721 `pkg-config foo` for cflags/libs.
1722
df6303fa
PP
1723PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1724 with rest of GSASL and with heimdal_gssapi.
1725
7e6a8985
PP
1726PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1727 `pkg-config foo` for cflags/libs for the TLS implementation.
1728
f1e05cc7 1729PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1730 properties get this fed in as external SSF. A number of robustness
1731 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1732
4c287009
PP
1733PP/08 cyrus_sasl server now expands the server_realm option.
1734
b98bb9ac
PP
1735PP/09 Bugzilla 1214 - Log authentication information in reject log.
1736 Patch by Jeremy Harris.
1737
4a6a987a
PP
1738PP/10 Added dbmjz lookup type.
1739
c45dd180 1740PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1741
7db8d074
PP
1742PP/12 MAIL args handles TAB as well as SP, for better interop with
1743 non-compliant senders.
1744 Analysis and variant patch by Todd Lyons.
1745
eae0036b 1746NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1747 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1748 Patch from Dirk Mueller <dmueller@suse.com>
1749
dec5017e
PP
1750PP/13 tls_peerdn now print-escaped for spool files.
1751 Observed some $tls_peerdn in wild which contained \n, which resulted
1752 in spool file corruption.
1753
c80c5570
PP
1754PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1755 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1756 or write after TLS renegotiation, which otherwise led to messages
1757 "Got SSL error 2".
1758
076b11e2
PP
1759TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1760 as a tracking header (ie: a signed header comes before the signature).
1761 Patch from Wolfgang Breyha.
1762
5407bfff
JH
1763JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1764 comma-sep list; embedded commas doubled.
1765
9e45c72b
PP
1766JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1767
e74376d8
PP
1768PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1769 diagnostics.
1770 Report and patch from Dmitry Banschikov.
1771
4c04137d 1772PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1773 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1774 failures. We appear to now support TLS1.1+ with Exim.
1775
7be682ca
PP
1776PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1777 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1778 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1779 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1780
ef840681
PP
1781PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1782 NULL dereference. Report and patch from Alun Jones.
1783
5bfb4cdf
PP
1784PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1785 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1786 Not seeing resolver debug output on NetBSD, but suspect this is a
1787 resolver implementation change.
1788
c6e95d22
PP
1789PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1790 Left warnings. Added "eximon gdb" invocation mode.
1791
9cbad13b
PP
1792PP/21 Defaulting "accept_8bitmime" to true, not false.
1793
9ee44efb
PP
1794PP/22 Added -bw for inetd wait mode support.
1795
6a6084f8
PP
1796PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1797 locate the relevant includes and libraries. Made this the default.
1798
12dd53c7
PP
1799PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1800 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1801
9e45c72b 1802JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1803 This may cause build issues on older platforms.
1804
17c76198
PP
1805PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1806 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1807 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1808 Added SNI support via GnuTLS too.
af3498d6 1809 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1810
53947857 1811PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1812
eae0036b 1813PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1814 Applied second patch from Janne, implementing suggestion to default
1815 multiple-strings-in-record handling to match SPF spec.
eae0036b 1816
9e45c72b 1817JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1818
7390e768
PP
1819PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1820 read-only, out of scope).
1821 Patch from Wolfgang Breyha, report from Stuart Northfield.
1822
08488c86
PP
1823PP/29 Fix three issues highlighted by clang analyser static analysis.
1824 Only crash-plausible issue would require the Cambridge-specific
1825 iplookup router and a misconfiguration.
1826 Report from Marcin Mirosław.
1827
6475bd82
PP
1828PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1829
81f91683
PP
1830PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1831 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1832 As part of this, removing so much warning spew let me fix some minor
1833 real issues in debug logging.
1834
5779e6aa
PP
1835PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1836 assignment on my part. Fixed.
1837
3375e053
PP
1838PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1839 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1840 Janne Snabb (who went above and beyond: thank you).
1841
1842PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1843 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1844 relatively easy to get wrong. Should also expose TLS library linkage
1845 problems.
3375e053 1846
9d26b8c0
PP
1847PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1848 64-bit ${eval} (JH/03).
1849
57eb9e91 1850PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1851 GNU libc to support some of the 64-bit stuff, should not lead to
1852 conflicts. Defined before os.h is pulled in, so if a given platform
1853 needs to override this, it can.
1854
16880d1a
PP
1855PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1856 protection layer was required, which is not implemented.
1857 Bugzilla 1254, patch from Wolfgang Breyha.
1858
a799883d
PP
1859PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1860 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1861 tls_dhparam take prime identifiers. Also unbreak combination of
1862 OpenSSL+DH_params+TLSSNI.
1863
3ecab157 1864PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1865
0599f9cf 1866
867fcbf5
PP
1867Exim version 4.77
1868-----------------
1869
1870PP/01 Solaris build fix for Oracle's LDAP libraries.
1871 Bugzilla 1109, patch from Stephen Usher.
1872
f1a29782
TF
1873TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1874
ab42bd23
TK
1875TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1876 whitespace trailer
867fcbf5 1877
0ca0cf52
TF
1878TF/02 Fix a couple more cases where we did not log the error message
1879 when unlink() failed. See also change 4.74-TF/03.
1880
921b12ca
TF
1881TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1882 lock up or crash if it happened to be inside a call to libc when it
1883 got a SIGUSR1 from exiwhat.
1884
1885 The SIGUSR1 handler appends the current process status to the process
1886 log which is later printed by exiwhat. It used to use the general
1887 purpose logging code to do this, but several functions it calls are
1888 not safe for signals.
1889
1890 The new output code in the SIGUSR1 handler is specific to the process
1891 log, and simple enough that it's easy to inspect for signal safety.
1892 Removing some special cases also simplifies the general logging code.
1893 Removing the spurious timestamps from the process log simplifies
1894 exiwhat.
1895
c99ce5c9
TF
1896TF/04 Improved ratelimit ACL condition.
1897
1898 The /noupdate option has been deprecated in favour of /readonly which
1899 has clearer semantics. The /leaky, /strict, and /readonly update modes
1900 are mutually exclusive. The update mode is no longer included in the
1901 database key; it just determines when the database is updated. (This
4c04137d 1902 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1903
1904 Exim now checks that the per_* options are used with an update mode that
1905 makes sense for the current ACL. For example, when Exim is processing a
1906 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1907 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1908 must specify per_mail/readonly. If you omit the update mode it defaults to
1909 /leaky where that makes sense (as before) or /readonly where required.
1910
1911 The /noupdate option is now undocumented but still supported for
1912 backwards compatibility. It is equivalent to /readonly except that in
1913 ACLs where /readonly is required you may specify /leaky/noupdate or
1914 /strict/noupdate which are treated the same as /readonly.
1915
1916 A useful new feature is the /count= option. This is a generalization
1917 of the per_byte option, so that you can measure the throughput of other
1918 aggregate values. For example, the per_byte option is now equivalent
1919 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1920
1921 The per_rcpt option has been generalized using the /count= mechanism
1922 (though it's more complicated than the per_byte equivalence). When it is
1923 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1924 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1925 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1926 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1927 Note that using per_rcpt with a non-readonly update mode in more than
1928 one ACL will cause the recipients to be double-counted. (The per_mail
1929 and per_byte options don't have this problem.)
1930
1931 The handling of very low rates has changed slightly. If the computed rate
1932 is less than the event's count (usually one) then this event is the first
1933 after a long gap. In this case the rate is set to the same as this event's
1934 count, so that the first message of a spam run is counted properly.
1935
1936 The major new feature is a mechanism for counting the rate of unique
1937 events. The new per_addr option counts the number of different
1938 recipients that someone has sent messages to in the last time period. It
1939 behaves like per_rcpt if all the recipient addresses are different, but
1940 duplicate recipient addresses do not increase the measured rate. Like
1941 the /count= option this is a general mechanism, so the per_addr option
1942 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1943 example, measure the rate that a client uses different sender addresses
1944 with the options per_mail/unique=$sender_address. There are further
1945 details in the main documentation.
1946
3634fc25
TF
1947TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1948
792e8a19
TF
1949TF/06 Removed a few PCRE remnants.
1950
5901f0ab
TF
1951TF/07 Automatically extract Exim's version number from tags in the git
1952 repository when doing development or release builds.
1953
7f2a2a43
PP
1954PP/02 Raise smtp_cmd_buffer_size to 16kB.
1955 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1956
061b7ebd
PP
1957PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1958 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1959 Bugzilla 97.
1960
e12f8c32
PP
1961PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1962
9e949f00 1963PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1964 Bugzilla 1078. Patch from John Horne.
1965
1966PP/06 Stop make process more reliably on build failure.
1967 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1968
555ae6af 1969PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1970 Bugzilla 1089. Patch from Heiko Schlittermann.
1971
1972PP/08 Handle ${run} returning more data than OS pipe buffer size.
1973 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1974
6f7fe114
PP
1975PP/09 Handle IPv6 addresses with SPF.
1976 Bugzilla 860. Patch from Wolfgang Breyha.
1977
c566dd90
PP
1978PP/10 GnuTLS: support TLS 1.2 & 1.1.
1979 Bugzilla 1156.
89f897c3
PP
1980 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1981 Bugzilla 1095.
c566dd90 1982
d6cc7c78 1983PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1984 New compile-time build option, EXPAND_LISTMATCH_RHS.
1985 New expansion conditions, "inlist", "inlisti".
1986
0d0e4455
PP
1987PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1988
3399bb60 1989PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1990
1991PP/14 fix log_write() format string regression from TF/03.
1992 Bugzilla 1152. Patch from Dmitry Isaikin.
1993
0ca0cf52 1994
10906672
PP
1995Exim version 4.76
1996-----------------
1997
1998PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1999
754a0503
PP
2000PP/02 Harmonised TLS library version reporting; only show if debugging.
2001 Layout now matches that introduced for other libraries in 4.74 PP/03.
2002
c0c7b2da
PP
2003PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2004
e97d1f08
PP
2005PP/04 New "dns_use_edns0" global option.
2006
084c1d8c
PP
2007PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2008 Bugzilla 1098.
2009
4e7ee012
PP
2010PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2011 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2012
c8d52a00
PP
2013TK/01 Updated PolarSSL code to 0.14.2.
2014 Bugzilla 1097. Patch from Andreas Metzler.
2015
54e7ce4a
PP
2016PP/07 Catch divide-by-zero in ${eval:...}.
2017 Fixes bugzilla 1102.
2018
5ee6f336
PP
2019PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2020 Bugzilla 1104.
2021
c8d52a00 2022TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2023 format-string attack -- SECURITY: remote arbitrary code execution.
2024
2025TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2026 time unintentionally subject to list matching rules, letting the header
2027 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2028 arbitrary string expansion). This allowed for information disclosure.
2029
2030PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2031 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2032
10906672 2033
aa097c4c
NM
2034Exim version 4.75
2035-----------------
2036
4c04137d 2037NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2038 Bugzilla 1073
2039
7f3d9eff
TF
2040TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2041 This fixes portability to compilers other than gcc, notably
2042 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2043
159f52d2
TF
2044TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2045 makefiles for portability to HP-UX and POSIX correctness.
2046
0cc9542a
PP
2047PP/01 Permit LOOKUP_foo enabling on the make command-line.
2048 Also via indented variable definition in the Makefile.
2049 (Debugging by Oliver Heesakkers).
2050
f7274286
PP
2051PP/02 Restore caching of spamd results with expanded spamd_address.
2052 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2053
7b797365
PP
2054PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2055 Improves build reliability. Fix from: Frank Elsner
2056
caacae52
NM
2057NM/02 Fix wide character breakage in the rfc2047 coding
2058 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2059
09dcaba9
NM
2060NM/03 Allow underscore in dnslist lookups
2061 Fixes bug 1026. Patch from Graeme Fowler
2062
bc19a55b
PP
2063PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2064 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2065
bd4c9759
NM
2066NM/04 Fixed exiqgrep to cope with mailq missing size issue
2067 Fixes bug 943.
2068
b72aab72
PP
2069PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2070 is logged, to avoid truncation. Patch from John Horne.
2071
2fe76745
PP
2072PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2073 Patch from Jakob Hirsch.
2074
76aa570c
PP
2075PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2076 SQL string expansion failure details.
2077 Patch from Andrey Oktyabrski.
2078
f1e5fef5
PP
2079PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2080 Patch from Simon Arlott.
2081
4d805ee9
PP
2082PP/09 New lookups functionality failed to compile on old gcc which rejects
2083 extern declarations in function scope.
2084 Patch from Oliver Fleischmann
2085
cd59ab18
PP
2086PP/10 Use sig_atomic_t for flags set from signal handlers.
2087 Check getgroups() return and improve debugging.
2088 Fixed developed for diagnosis in bug 927 (which turned out to be
2089 a kernel bug).
2090
332f5cf3
PP
2091PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2092 Patch from Mark Zealey.
2093
29cfeb94
PP
2094PP/12 Bugzilla 1056: Improved spamd server selection.
2095 Patch from Mark Zealey.
2096
660242ad
PP
2097PP/13 Bugzilla 1086: Deal with maildir quota file races.
2098 Based on patch from Heiko Schlittermann.
2099
bc4bc4c5
PP
2100PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2101 Patch from Uwe Doering, sign-off by Michael Haardt.
2102
2e64baa9
NM
2103NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2104 variable declaration deep within a block. Bug and patch from
2105 Dennis Davis.
2106
4c04137d 2107PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2108
6bac1a9a
PP
2109PP/16 Make DISABLE_DKIM build knob functional.
2110
552193f0
NM
2111NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2112 Patch by Simon Arlott
baeee2c1 2113
1b587e48
TF
2114TF/03 Fix valgrind.h portability to C89 compilers that do not support
2115 variable argument macros. Our copy now differs from upstream.
2116
aa097c4c 2117
8c07b69f
TF
2118Exim version 4.74
2119-----------------
2120
2121TF/01 Failure to get a lock on a hints database can have serious
2122 consequences so log it to the panic log.
2123
c0ea85ab
TF
2124TF/02 Log LMTP confirmation messages in the same way as SMTP,
2125 controlled using the smtp_confirmation log selector.
2126
0761d44e
TF
2127TF/03 Include the error message when we fail to unlink a spool file.
2128
0a349494
PP
2129DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2130 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2131 for maintaining out-of-tree patches for some time.
2132
2133PP/01 Bugzilla 139: Documentation and portability issues.
2134 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2135 Handle per-OS dynamic-module compilation flags.
2136
fea24b2e
PP
2137PP/02 Let /dev/null have normal permissions.
2138 The 4.73 fixes were a little too stringent and complained about the
2139 permissions on /dev/null. Exempt it from some checks.
2140 Reported by Andreas M. Kirchwitz.
2141
6545de78
PP
2142PP/03 Report version information for many libraries, including
2143 Exim version information for dynamically loaded libraries. Created
2144 version.h, now support a version extension string for distributors
2145 who patch heavily. Dynamic module ABI change.
2146
1670ef10
PP
2147PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2148 privilege escalation vulnerability whereby the Exim run-time user
2149 can cause root to append content of the attacker's choosing to
2150 arbitrary files.
2151
c0886197
PP
2152PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2153 (Wolfgang Breyha)
2154
b7487bce
PP
2155PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2156 If dropping privileges for untrusted macros, we disabled normal logging
2157 on the basis that it would fail; for the Exim run-time user, this is not
2158 the case, and it resulted in successful deliveries going unlogged.
2159 Fixed. Reported by Andreas Metzler.
2160
8c07b69f 2161
97fd1e48 2162Exim version 4.73
ed7f7860 2163-----------------
97fd1e48
PP
2164
2165PP/01 Date: & Message-Id: revert to normally being appended to a message,
2166 only prepend for the Resent-* case. Fixes regression introduced in
2167 Exim 4.70 by NM/22 for Bugzilla 607.
2168
6901c596
PP
2169PP/02 Include check_rfc2047_length in configure.default because we're seeing
2170 increasing numbers of administrators be bitten by this.
2171
a8c8d6b5
JJ
2172JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2173
77bb000f
PP
2174PP/03 Bugzilla 994: added openssl_options main configuration option.
2175
a29e5231
PP
2176PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2177
ec5a0394 2178PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2179
55c75993
PP
2180PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2181
453a6645 2182PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2183 without a peer certificate, leading to a segfault because of an
2184 assumption that peers always have certificates. Be a little more
453a6645
PP
2185 paranoid. Problem reported by Martin Tscholak.
2186
8544e77a
PP
2187PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2188 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2189 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2190 CL also introduces -bmalware, various -d+acl logging additions and
2191 more caution in buffer sizes.
8544e77a 2192
83e029d5
PP
2193PP/09 Implemented reverse_ip expansion operator.
2194
ed7f7860
PP
2195PP/10 Bugzilla 937: provide a "debug" ACL control.
2196
7d9f747b
PP
2197PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2198
4b2241d2
PP
2199PP/12 Bugzilla 973: Implement --version.
2200
10385c15
PP
2201PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2202
dbc4b90d
PP
2203PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2204
532be449
PP
2205PP/15 Bugzilla 816: support multiple condition rules on Routers.
2206
6a8de854 2207PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2208 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2209 ignore trailing whitespace.
6a8de854 2210
5dc43717
JJ
2211JJ/02 prevent non-panic DKIM error from being sent to paniclog
2212
2213JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2214 "exim" to be used
55c75993 2215
3346ab01
PP
2216PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2217 Notification from Dr Andrew Aitchison.
2218
491fab4c
PP
2219PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2220 ExtendedDetectionInfo response format.
2221 Notification from John Horne.
2222
13eb9497
PP
2223PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2224 compatible.
2225
2226PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2227 XSL and documented dependency on system catalogs, with examples of how
2228 it normally works.
2229
7f36d675
DW
2230DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2231 access.
2232
c1d94452
DW
2233DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2234 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2235 configuration file which is writeable by the Exim user or group.
2236
e2f5dc15
DW
2237DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2238 of configuration files to cover files specified with the -C option if
2239 they are going to be used with root privileges, not just the default
2240 configuration file.
2241
cd25e41d
DW
2242DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2243 option (effectively making it always true).
2244
261dc43e
DW
2245DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2246 files to be used while preserving root privileges.
2247
fa32850b
DW
2248DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2249 that rogue child processes cannot use them.
2250
79d4bc3d
PP
2251PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2252 run-time user, instead of root.
2253
43236f35 2254PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2255 Exim run-time user without dropping privileges.
2256
fb08281f
DW
2257DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2258 result string, instead of calling string_vformat() twice with the same
2259 arguments.
3346ab01 2260
74935b98
DW
2261DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2262 for other users. Others should always drop root privileges if they use
2263 -C on the command line, even for a whitelisted configure file.
2264
90b6341f
DW
2265DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2266
57730b52
ML
2267NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2268
66581d1e 2269
465e92cf
JJ
2270Exim version 4.72
2271-----------------
2272
453a6645
PP
2273JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2274 $data_path, and $header_path variables; fixed documentation bugs and
2275 typos
465e92cf 2276
453a6645
PP
2277JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2278 exipick to access non-standard spools, including the "frozen" queue
2279 (Finput)
edae0343 2280
9bd3e22c
NM
2281NM/01 Bugzilla 965: Support mysql stored procedures.
2282 Patch from Alain Williams
2283
bb576ff7
NM
2284NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2285
5a1a5845
NM
2286NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2287 Patch from Andreas Metzler
2288
981a9fad
NM
2289NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2290 Patch from Kirill Miazine
2291
7fc497ee
NM
2292NM/05 Bugzilla 671: Added umask to procmail example.
2293
1a41defa
JJ
2294JJ/03 installed exipick 20100323.0, fixing doc bug
2295
a466095c 2296NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2297 directory. Notification and patch from Dan Rosenberg.
a466095c 2298
94a6bd0b
NM
2299TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2300
2301TK/02 Improve log output when DKIM signing operation fails.
2302
2303MH/01 Treat the transport option dkim_domain as a colon separated
2304 list, not as a single string, and sign the message with each element,
2305 omitting multiple occurences of the same signer.
2306
c1b141a8
NM
2307NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2308 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2309
b26eacf1 2310NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2311 Patch by Simon Arlott
2312
179c5980 2313PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2314 MBX locking. Notification from Dan Rosenberg.
179c5980 2315
9bd3e22c 2316
7c6d71af
NM
2317Exim version 4.71
2318-----------------
2319
7d9f747b 2320TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2321
f013fb92
NM
2322NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2323
0eb8eedd
NM
2324NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2325
663ee6d9
NM
2326NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2327
177ebd9b
NM
2328NM/04 Bugzilla 915: Flag broken perl installation during build.
2329
7c6d71af 2330
210f147e
NM
2331Exim version 4.70
2332-----------------
2333
cdd3bb85 2334TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2335 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2336
2337TK/02 Write list of recipients to X-Envelope-Sender header when building
2338 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2339 Hirsch).
cdd3bb85
TK
2340
2341TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2342 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2343 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2344
2345TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2346 by Mark Daniel Reidel <mr@df.eu>.
2347
210f147e
NM
2348NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2349 When building exim an external PCRE library is now needed -
2350 PCRE is a system library on the majority of modern systems.
2351 See entry on PCRE_LIBS in EDITME file.
2352
deafd5b3
NM
2353NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2354 conversation. Added nologin parameter to request.
7d9f747b 2355 Patch contributed by Kirill Miazine.
deafd5b3 2356
089793a4
TF
2357TF/01 Do not log submission mode rewrites if they do not change the address.
2358
5f16ca82
TF
2359TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2360
dae9d94e 2361NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2362 log files in place. Contributed by Roberto Lima.
dae9d94e 2363
7d9f747b 2364NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2365
06864c44
TF
2366TF/03 Bugzilla 615: When checking the local_parts router precondition
2367 after a local_part_suffix or local_part_prefix option, Exim now
2368 does not use the address's named list lookup cache, since this
2369 contains cached lookups for the whole local part.
2370
65a7d8c3 2371NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2372 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2373
23510047 2374TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2375
7d9f747b 2376NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2377
7d8eec3a 2378NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2379 Patch provided by Jan Srzednicki.
6c588e74 2380
89dec7b6
TF
2381TF/05 Leading white space used to be stripped from $spam_report which
2382 wrecked the formatting. Now it is preserved.
5f28a6e8 2383
a99de90c
TF
2384TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2385 that they are available at delivery time.
2386
e2803e40
TF
2387TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2388
7199e1ee
TF
2389TF/08 TLS error reporting now respects the incoming_interface and
2390 incoming_port log selectors.
2391
e276e04b
TF
2392TF/09 Produce a more useful error message if an SMTP transport's hosts
2393 setting expands to an empty string.
2394
ce552449 2395NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2396 Patch provided by Phil Pennock.
ce552449 2397
e765a0f1 2398NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2399 Patch provided by Richard Godbee.
e765a0f1 2400
4f054c63 2401NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2402 acl_smtp_notquit, added index entry.
4f054c63 2403
7d9f747b
PP
2404NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2405 Patch provided by Eugene Bujak.
24c929a2 2406
7d9f747b
PP
2407NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2408 accept(). Patch provided by Maxim Dounin.
cf73943b 2409
b52bc06e 2410NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2411 Patch provided by Phil Pennock.
b52bc06e 2412
447de4b0
NM
2413NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2414
4c69d561 2415NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2416 Patch provided by Brad "anomie" Jorsch.
4c69d561 2417
d5c39246 2418NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2419 Patch provided by Dean Brooks.
9b989985 2420
0b23848a
TK
2421TK/05 Add native DKIM support (does not depend on external libraries).
2422
8f3414a1 2423NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2424 Patch provided by Graeme Fowler.
e2aacdfd 2425
fb6f955d
NM
2426NM/16 Bugzilla 851: Documentation example syntax fix.
2427
2428NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2429
7d9f747b
PP
2430NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2431 lsearch.
dbb0bf41 2432
7d9f747b
PP
2433NM/19 Bugzilla 745: TLS version reporting.
2434 Patch provided by Phil Pennock.
f3766eb5 2435
7d9f747b
PP
2436NM/20 Bugzilla 167: bool: condition support.
2437 Patch provided by Phil Pennock.
36f12725 2438
7d9f747b
PP
2439NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2440 clients. Patch provided by Phil Pennock.
e6060e2c 2441
7d9f747b
PP
2442NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2443 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2444
7d9f747b
PP
2445NM/23 Bugzilla 687: Fix misparses in eximstats.
2446 Patch provided by Heiko Schlittermann.
d5c13d66 2447
7d9f747b
PP
2448NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2449 Patch provided by Heiko Schlittermann.
b2335c0b 2450
7d9f747b 2451NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2452 plus update to original patch.
f4cd9433 2453
7d9f747b 2454NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2455
7d9f747b
PP
2456NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2457 Patch provided by David Brownlee.
8dc71ab3 2458
7d9f747b 2459NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2460
7d9f747b 2461NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2462
7d9f747b 2463NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2464
7d9f747b 2465NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2466
17792b53 2467NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2468 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2469
7d9f747b
PP
2470NM/33 Bugzilla 898: Transport filter timeout fix.
2471 Patch by Todd Rinaldo.
52383f8f 2472
91576cec 2473NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2474 Patch by Serge Demonchaux.
5ca6d115 2475
7d9f747b
PP
2476NM/35 Bugzilla 39: Base64 decode bug fixes.
2477 Patch by Jakob Hirsch.
baee9eee 2478
7d9f747b 2479NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2480
7d9f747b 2481NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2482
7d9f747b 2483NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2484
7d9f747b 2485NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2486
deafd5b3 2487
47db1125
NM
2488Exim version 4.69
2489-----------------
2490
4b3504d0
TK
2491TK/01 Add preliminary DKIM support. Currently requires a forked version of
2492 ALT-N's libdkim that I have put here:
2493 http://duncanthrax.net/exim-experimental/
2494
2495 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2496 were called 'true' and it seems that C99 defines that as a reserved
2497 keyword to be used with 'bool' variable types. That means you could
2498 not include C99-style headers which use bools without triggering
2499 build errors in sieve.c.
2500
81ea09ca
NM
2501NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2502 as mailq or other aliases. Changed the --help handling significantly
2503 to do whats expected. exim_usage() emits usage/help information.
2504
f13cddcb
SC
2505SC/01 Added the -bylocaldomain option to eximstats.
2506
7d9f747b 2507NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2508
7d9f747b 2509NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2510
7d9f747b 2511NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2512
2513
eb4c0de6
PH
2514Exim version 4.68
2515-----------------
2516
2517PH/01 Another patch from the Sieve maintainer.
2518
6a3bceb1
PH
2519PH/02 When an IPv6 address is converted to a string for single-key lookup
2520 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2521 dots are used instead of colons so that keys in lsearch files need not
2522 contain colons. This was done some time before quoting was made available
2523 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2524 (notated using the quote facility) so as to distinguish them from IPv4
2525 keys. This meant that lookups for IP addresses in host lists did not work
2526 for iplsearch lookups.
2527
2528 This has been fixed by arranging for IPv6 addresses to be expressed with
2529 colons if the lookup type is iplsearch. This is not incompatible, because
2530 previously such lookups could never work.
2531
4c04137d 2532 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2533 ordinary lsearch keys. However, making the change in all cases is
2534 incompatible and would probably break a number of configurations.
2535
2e30fa9d
TK
2536TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2537 version.
2538
0806a9c5
MH
2539MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2540 conversion specification without a maximum field width, thereby enabling
2541 a rogue spamd server to cause a buffer overflow. While nobody in their
2542 right mind would setup Exim to query an untrusted spamd server, an
2543 attacker that gains access to a server running spamd could potentially
2544 exploit this vulnerability to run arbitrary code as the Exim user.
2545
ae276964
TK
2546TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2547 $primary_hostname instead of what libspf2 thinks the hosts name is.
2548
0f2cbd1b
MH
2549MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2550 a directory entry by the name of the lookup key. Previously, if a
2551 symlink pointed to a non-existing file or a file in a directory that
2552 Exim lacked permissions to read, a lookup for a key matching that
2553 symlink would fail. Now it is enough that a matching directory entry
2554 exists, symlink or not. (Bugzilla 503.)
2555
2b85bce7
PH
2556PH/03 The body_linecount and body_zerocount variables are now exported in the
2557 local_scan API.
2558
93655c46
PH
2559PH/04 Added the $dnslist_matched variable.
2560
6c512171
PH
2561PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2562 This means they are set thereafter only if the connection becomes
2563 encrypted.
2564
2565PH/06 Added the client_condition to authenticators so that some can be skipped
2566 by clients under certain conditions.
2567
aa6dc513
PH
2568PH/07 The error message for a badly-placed control=no_multiline_responses left
2569 "_responses" off the end of the name.
2570
a96603a0
PH
2571PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2572
8f240103
PH
2573PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2574 (without spaces) instead of just copying the configuration text.
2575
2576PH/10 Added the /noupdate option to the ratelimit ACL condition.
2577
d677b2f2
PH
2578PH/11 Added $max_received_linelength.
2579
d52120f2
PH
2580PH/12 Added +ignore_defer and +include_defer to host lists.
2581
64f2600a
PH
2582PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2583 way in which PCRE > 7.0 is built.
2584
8669f003
PH
2585PH/14 Implemented queue_only_load_latch.
2586
a4dc33a8
PH
2587PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2588 MAIL command. The effect was to mangle the value on 64-bit systems.
2589
d6a60c0f
PH
2590PH/16 Another patch from the Sieve maintainer.
2591
8f128379
PH
2592PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2593
8932dffe
PH
2594PH/18 If a system quota error occurred while trying to create the file for
2595 a maildir delivery, the message "Mailbox is full" was not appended to the
2596 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2597 only to a quota excession during the actual writing of the file.
d6a60c0f 2598
ddea74fa 2599PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2600 characters?) which causes problems in log lines. The DN values are now
2601 passed through string_printing() before being added to log lines.
2602
ddea74fa 2603PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2604 and InterBase are left for another time.)
2605
ddea74fa
PH
2606PH/21 Added message_body_newlines option.
2607
ce9f225c
PH
2608PH/22 Guard against possible overflow in moan_check_errorcopy().
2609
19897d52
PH
2610PH/23 POSIX allows open() to be a macro; guard against that.
2611
bc64a74d
PH
2612PH/24 If the recipient of an error message contained an @ in the local part
2613 (suitably quoted, of course), incorrect values were put in $domain and
2614 $local_part during the evaluation of errors_copy.
2615
eb4c0de6 2616
b4ed4da0
PH
2617Exim version 4.67
2618-----------------
2619
22ad45c9
MH
2620MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2621 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2622 Jan Srzednicki.
2623
b4ed4da0
PH
2624PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2625 issue a MAIL command.
2626
431b7361
PH
2627PH/02 In an ACL statement such as
2628
2629 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2630
2631 if a client was not listed at all, or was listed with a value other than
2632 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2633 the condition was not true (as it should be), so access was not denied.
2634 The bug was that the ! inversion was incorrectly passed on to the second
2635 item. This has been fixed.
2636
2637PH/03 Added additional dnslists conditions == and =& which are different from
2638 = and & when the dns lookup returns more than one IP address.
2639
83da1223
PH
2640PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2641 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2642
54fc8428
PH
2643PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2644 FSYNC, which compiles an option called disable_fsync that allows for
2645 bypassing fsync(). The documentation is heavily laced with warnings.
2646
34c5e8dd
SC
2647SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2648
bbe15da8
PH
2649PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2650 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2651 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2652 including adding "make clean"; (3) Added -fPIC when compiling the test
2653 dynamically loaded module, to get rid of a warning.
2654
0e8a9471
MH
2655MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2656 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2657 = 0s. The bug is otherwise harmless.
2658
f0872424
PH
2659PH/07 There was a bug in the dovecot authenticator such that the value of
2660 $auth1 could be overwritten, and so not correctly preserved, after a
2661 successful authentication. This usually meant that the value preserved by
2662 the server_setid option was incorrect.
2663
b01dd148
PH
2664PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2665
6bf342e1
PH
2666PH/09 Installed PCRE release 7.0.
2667
273f34d0
PH
2668PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2669 run for batched SMTP input. It is now run at the start of every message
2670 in the batch. While fixing this I discovered that the process information
2671 (output by running exiwhat) was not always getting set for -bs and -bS
2672 input. This is fixed, and it now also says "batched" for BSMTP.
2673
cf8b11a5
PH
2674PH/11 Added control=no_pipelining.
2675
41c7c167
PH
2676PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2677 patch, slightly modified), and move the expansion of helo_data till after
2678 the connection is made in the smtp transport (so it can use these
2679 values).
2680
9c57cbc0
PH
2681PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2682
f3f065bb
PH
2683PH/14 Added log_selector = +pid.
2684
047bdd8c
PH
2685PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2686
0ce9abe6
PH
2687PH/16 Add ${if forany and ${if forall.
2688
0e22dfd1
PH
2689PH/17 Added dsn_from option to vary the From: line in DSNs.
2690
4c590bd1
PH
2691PH/18 Flush SMTP output before performing a callout, unless control =
2692 no_callout_flush is set.
2693
09945f1e
PH
2694PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2695 was true (the default) a successful delivery failed to delete the retry
2696 item, thus causing premature timeout of the address. The bug is now
2697 fixed.
2698
c51b8e75
PH
2699PH/20 Added hosts_avoid_pipelining to the smtp transport.
2700
e28326d8 2701PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2702 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2703 other ACL rejections are.
2704
75b1493f
PH
2705PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2706 with slight modification.
2707
7c5214ec
PH
2708PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2709 draft, changing the syntax and factoring some duplicate code".
2710
4311097e
PH
2711PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2712 for deliveries of the second and subsequent messages over the same SMTP
2713 connection.
2714
29f89cad
PH
2715PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2716 ${reduce, with only minor "tidies".
2717
5e687460
SC
2718SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2719
c3611384
PH
2720PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2721 expansion side effects.
2722
5a11a7b4
PH
2723PH/27 When a message times out after an over-quota error from an Exim-imposed
2724 quota, the bounce message says "mailbox is full". This message was not
2725 being given when it was a system quota that was exceeded. It now should
2726 be the same.
2727
0e20aff9
MH
2728MH/03 Made $recipients available in local_scan(). local_scan() already has
2729 better access to the recipient list through recipients_list[], but
2730 $recipients can be useful in postmaster-provided expansion strings.
2731
ca86f471
PH
2732PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2733 in the case of a MAIL command with additional options following the
2734 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2735 were accidentally chopped off.
2736
a14e5636
PH
2737PH/29 SMTP synchronization checks are implemented when a command is read -
2738 there is a check that no more input is waiting when there shouldn't be
2739 any. However, for some commands, a delay in an ACL can mean that it is
2740 some time before the response is written. In this time, more input might
2741 arrive, invalidly. So now there are extra checks after an ACL has run for
2742 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2743 pipelining has not been advertised.
2744
ec95d1a6
PH
2745PH/30 MH's patch to allow iscntrl() characters to be list separators.
2746
42855d71
PH
2747PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2748 returned in the SMTP response when smtp_return_error_details was false.
2749 This has been fixed.
2750
57c2c631
PH
2751PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2752 instead of the C I/O that was originally supplied, because problems were
2753 reported on Solaris.
2754
58c01c94
PH
2755PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2756 Exim which did not show up earlier: it was assuming that a call to
2757 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2758 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2759 was a macro that became an assignment, so it seemed to work. This has
2760 changed to a proper function call with a void return, hence the compile
2761 error. Exim's code has been fixed.
2762
dee5a20a
PH
2763PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2764 cpus.
2765
d2ee6114
PH
2766PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2767
b2d5182b
PH
2768PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2769
79749a79
PH
2770PH/37 If a message is not accepted after it has had an id assigned (e.g.
2771 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2772 "Completed" line in the log. When some messages of this type were
2773 selected by exigrep, they were listed as "not completed". Others were
2774 picked up by some special patterns. I have improved the selection
2775 criteria to be more general.
79749a79 2776
c456d9bb
PH
2777PH/38 The host_find_failed option in the manualroute router can now be set
2778 to "ignore", to completely ignore a host whose IP address cannot be
2779 found. If all hosts are ignored, the behaviour is controlled by the new
2780 host_all_ignored option.
2781
cd9868ec
PH
2782PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2783 homing or because of multiple MX records with /mx) generated more than
2784 one IP address, and the following item turned out to be the local host,
2785 all the secondary addresses of the first item were incorrectly removed
2786 from the list, along with the local host and any following hosts (which
2787 is what is supposed to happen).
2788
ebeaf996
PH
2789PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2790 whoever called Exim into the -H file. In the case of the daemon it was
2791 behaving confusingly. When first started, it used values for whoever
2792 started the daemon, but after a SIGHUP it used the Exim user (because it
2793 calls itself on a restart). I have changed the code so that it now always
2794 uses the Exim user.
2795
2679d413
PH
2796PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2797 message are rejected with the same error (e.g. no authentication or bad
2798 sender address), and a DATA command is nevertheless sent (as can happen
2799 with PIPELINING or a stupid MUA), the error message that was given to the
2800 RCPT commands is included in the rejection of the DATA command. This is
2801 intended to be helpful for MUAs that show only the final error to their
2802 users.
2803
84024b72
PH
2804PH/42 Another patch from the Sieve maintainer.
2805
8005d38e
SC
2806SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2807 Eximstats - Fixed some broken HTML links and added missing column headers
2808 (Jez Hancock).
2809 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2810 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2811
3298c6c6
SC
2812SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2813
a43a27c5
PH
2814PH/43 Yet another patch from the Sieve maintainer.
2815
58eb016e 2816PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2817 the response to the final '.' that terminates a message, but only in the
2818 case where the client has not sent further data following the '.'
2819 (unfortunately, this is allowed). However, in many cases there won't be
2820 any further data because there won't be any more messages to send. A call
2821 to select() can be used: if it shows that the input is "ready", there is
2822 either input waiting, or the socket has been closed. An attempt to read
2823 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2824 would have sent an OK response which the client would never have see.
563b63fa
PH
2825 This could lead to message repetition. This fix should cure that, at
2826 least in a lot of common cases.
58eb016e 2827
b43a74ea
PH
2828PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2829 advertised in response to EHLO.
2830
b4ed4da0 2831
5dd1517f
PH
2832Exim version 4.66
2833-----------------
2834
2835PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2836 fixed by 4.65/MH/01 (is this a record?) are fixed:
2837
2838 (i) An empty string was always treated as zero by the numeric comparison
2839 operators. This behaviour has been restored.
2840
2841 (ii) It is documented that the numeric comparison operators always treat
2842 their arguments as decimal numbers. This was broken in that numbers
2843 starting with 0 were being interpreted as octal.
2844
2845 While fixing these problems I realized that there was another issue that
2846 hadn't been noticed. Values of message_size_limit (both the global option
2847 and the transport option) were treated as octal if they started with 0.
2848 The documentation was vague. These values are now always treated as
2849 decimal, and I will make that clear in the documentation.
2850
2851
93cfa765
TK
2852Exim version 4.65
2853-----------------
2854
2855TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2856 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2857 versions. (#438)
2858
d6066548
MH
2859MH/01 Don't check that the operands of numeric comparison operators are
2860 integers when their expansion is in "skipping" mode (fixes bug
2861 introduced by 4.64-PH/07).
2862
4362ff0d
PH
2863PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2864 child addresses, Exim now panics and dies. Previously, because the count
2865 is held in a short int, deliveries were likely to be lost. As such a
2866 large number of recipients for a single message is ridiculous
2867 (performance will be very, very poor), I have chosen to impose a limit
2868 rather than extend the field.
2869
93cfa765 2870
944e9e9c
TF
2871Exim version 4.64
2872-----------------
aa41d2de 2873
21d74bd9
TK
2874TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2875 leftover -K file (the existence of which was triggered by #402).
2876 While we were at it, introduced process PID as part of the -K
2877 filename. This should rule out race conditions when creating
2878 these files.
2879
2880TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2881 processing considerably. Previous code took too long for large mails,
2882 triggering a timeout which in turn triggers #401.
2883
2884TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2885 in the DK code in transports.c. sendfile() is not really portable,
2886 hence the _LINUX specificness.
944e9e9c
TF
2887
2888TF/01 In the add_headers option to the mail command in an Exim filter,
2889 there was a bug that Exim would claim a syntax error in any
2890 header after the first one which had an odd number of characters
2891 in the field name.
2892
2b1c6e3a
PH
2893PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2894 callout verification, Exim cached a "reject" for the entire domain. This
2895 is correct for most verifications, but it is not correct for a recipient
2896 verification with use_sender or use_postmaster set, because in that case
2897 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2898 case of MAIL FROM:<> rejection from other early rejections (e.g.
2899 rejection of HELO). When verifying a recipient using a non-null MAIL
2900 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2901 Whatever the result of the callout, the value of the domain cache is
2902 left unchanged (for any other kind of callout, getting as far as trying
2903 RCPT means that the domain itself is ok).
2904
1f872c80
PH
2905PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2906 gcc 4.1.1 threw up.
2907
2908PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2909 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2910 session, the daemon ignores ECONNECT errors and logs others; it now
2911 ignores EPIPE as well.
2912
d203e649
PH
2913PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2914 (quoted-printable decoding).
2915
cc2ed8f7 2916PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2917 later the small subsequent patch to fix an introduced bug.
f951fd57 2918
ddfcd446
PH
2919PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2920
d45b1de8
PH
2921PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2922
2923PH/08 An error is now given if message_size_limit is specified negative.
2924
38a0a95f 2925PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2926 to be given (somewhat) arbitrary names.
38a0a95f 2927
a2405d83
JJ
2928JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2929 in 4.64-PH/09.
2930
2931JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2932 miscellaneous code fixes
2933
6ea85e9a
PH
2934PH/10 Added the log_reject_target ACL modifier to specify where to log
2935 rejections.
2936
26da7e20
PH
2937PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2938 hostname. This is wrong, because it relates to the incoming message (and
2939 probably the interface on which it is arriving) and not to the outgoing
2940 callout (which could be using a different interface). This has been
2941 changed to use the value of the helo_data option from the smtp transport
2942 instead - this is what is used when a message is actually being sent. If
2943 there is no remote transport (possible with a router that sets up host
2944 addresses), $smtp_active_hostname is used.
6ea85e9a 2945
14aa5a05 2946PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2947 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2948 (a) The code assumed that strncpy() returns a negative number on buffer
2949 overflow, which isn't the case. Replaced with Exim's string_format()
2950 function.
2951 (b) There were several signed/unsigned issues. I just did the minimum
2952 hacking in of casts. There is scope for a larger refactoring.
2953 (c) The code used strcasecmp() which is not a standard C function.
2954 Replaced with Exim's strcmpic() function.
2955 (d) The code set only $1; it now sets $auth1 as well.
2956 (e) A simple test gave the error "authentication client didn't specify
2957 service in request". It would seem that Dovecot has changed its
2958 interface. Fortunately there's a specification; I followed it and
2959 changed what the client sends and it appears to be working now.
2960
ff75a1f7
PH
2961PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2962 decoding.
2963
e6f6568e
PH
2964PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2965 address A is aliased to B and C, where B exists and C does not. Without
2966 -v the output is "A verified" because verification stops after a
2967 successful redirection if more than one address is generated. However,
2968 with -v the child addresses are also verified. Exim was outputting "A
2969 failed to verify" and then showing the successful verification for C,
2970 with its parentage. It now outputs "B failed to verify", showing B's
2971 parentage before showing the successful verification of C.
2972
d6f6e0dc
PH
2973PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2974 look up a TXT record in a specific list after matching in a combined
2975 list.
2976
322050c2
PH
2977PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2978 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2979 they consult the DNS. I had assumed they would set it the way they
2980 wanted; and indeed my experiments on Linux seem to show that in some
2981 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2982 To be on the safe side, however, I have now made the interface to
2983 host_find_byname() similar to host_find_bydns(), with an argument
2984 containing the DNS resolver options. The host_find_byname() function now
2985 sets these options at its start, just as host_find_bydns() does. The smtp
2986 transport options dns_qualify_single and dns_search_parents are passed to
2987 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2988 of host_find_byname() use the default settings of RES_DEFNAMES
2989 (qualify_single) but not RES_DNSRCH (search_parents).
2990
08955dd3
PH
2991PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2992 spool_read_header() do less string testing, by means of a preliminary
2993 switch on the second character of optional "-foo" lines. (This is
2994 overdue, caused by the large number of possibilities that now exist.
2995 Originally there were few.) While I was there, I also converted the
2996 str(n)cmp tests so they don't re-test the leading "-" and the first
2997 character, in the hope this might squeeze out yet more improvement.
2998
1eccaa59
PH
2999PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
3000 flag allowing group syntax was set by the header_syntax check but not
3001 turned off, possible causing trouble later; (2) The flag was not being
3002 set at all for the header_verify test, causing "group"-style headers to
3003 be rejected. I have now set it in this case, and also caused header_
3004 verify to ignore an empty address taken from a group. While doing this, I
3005 came across some other cases where the code for allowing group syntax
3006 while scanning a header line wasn't quite right (mostly, not resetting
3007 the flag correctly in the right place). These bugs could have caused
3008 trouble for malformed header lines. I hope it is now all correct.
3009
602e59e5
PH
3010PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
3011 with the "reply" argument non-NULL. The code, however (which originally
3012 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
3013 but it didn't always do it. This confused somebody who was copying the
3014 code for some other use. I have removed all the tests.
3015
411ef850
PH
3016PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
3017 feature that was used to support insecure browsers during the U.S. crypto
3018 embargo. It requires special client support, and Exim is probably the
3019 only MTA that supported it -- and would never use it because real RSA is
3020 always available. This code has been removed, because it had the bad
3021 effect of slowing Exim down by computing (never used) parameters for the
3022 RSA_EXPORT functionality.
3023
7befa435
PH
3024PH/21 On the advice of Timo Sirainen, added a check to the dovecot
3025 authenticator to fail if there's a tab character in the incoming data
3026 (there should never be unless someone is messing about, as it's supposed
3027 to be base64-encoded). Also added, on Timo's advice, the "secured" option
3028 if the connection is using TLS or if the remote IP is the same as the
3029 local IP, and the "valid-client-cert option" if a client certificate has
3030 been verified.
3031
48da4259 3032PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
3033 authenticators. This can be used for authorization after authentication
3034 succeeds. (In the case of plaintext, it servers for both authentication
3035 and authorization.)
3036
48da4259
PH
3037PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
3038 if any retry times were supplied.
3039
d1d5595c
PH
3040PH/24 Exim crashed if verify=helo was activated during an incoming -bs
3041 connection, where there is no client IP address to check. In this
3042 situation, the verify now always succeeds.
3043
0ef732d9
PH
3044PH/25 Applied John Jetmore's -Mset patch.
3045
328895cc
PH
3046PH/26 Added -bem to be like -Mset, but loading a message from a file.
3047
fd700877
PH
3048PH/27 In a string expansion for a processed (not raw) header when multiple
3049 headers of the same name were present, leading whitespace was being
3050 removed from all of them, but trailing whitespace was being removed only
3051 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
3052 before concatenation. Completely empty headers in a concatenation (as
3053 before) are ignored.
fd700877 3054
8dce1a6f
PH
3055PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
3056 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
3057
17af4a17
PH
3058PH/29 [Removed. This was a change that I later backed out, and forgot to
3059 correct the ChangeLog entry (that I had efficiently created) before
3060 committing the later change.]
f6c332bd
PH
3061
3062PH/30 Exim was sometimes attempting to deliver messages that had suffered
3063 address errors (4xx response to RCPT) over the same connection as other
3064 messages routed to the same hosts. Such deliveries are always "forced",
3065 so retry times are not inspected. This resulted in far too many retries
3066 for the affected addresses. The effect occurred only when there were more
3067 hosts than the hosts_max_try setting in the smtp transport when it had
3068 the 4xx errors. Those hosts that it had tried were not added to the list
3069 of hosts for which the message was waiting, so if all were tried, there
3070 was no problem. Two fixes have been applied:
3071
3072 (i) If there are any address or message errors in an SMTP delivery, none
3073 of the hosts (tried or untried) are now added to the list of hosts
3074 for which the message is waiting, so the message should not be a
3075 candidate for sending over the same connection that was used for a
3076 successful delivery of some other message. This seems entirely
3077 reasonable: after all the message is NOT "waiting for some host".
3078 This is so "obvious" that I'm not sure why it wasn't done
3079 previously. Hope I haven't missed anything, but it can't do any
3080 harm, as the worst effect is to miss an optimization.
3081
3082 (ii) If, despite (i), such a delivery is accidentally attempted, the
3083 routing retry time is respected, so at least it doesn't keep
3084 hammering the server.
3085
c1114884
PH
3086PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
3087 in ${readsocket because some servers need this prod.
3088
7a0743eb
PH
3089PH/32 Added some extra debug output when updating a wait-xxx database.
3090
0d85fa3f
PH
3091PH/33 The hint "could be header name not terminated by colon", which has been
3092 given for certain expansion errors for a long time, was not being given
3093 for the ${if def:h_colon_omitted{... case.
3094
1bf43b78
PH
3095PH/34 The spec says: "With one important exception, whenever a domain list is
3096 being scanned, $domain contains the subject domain." There was at least
3097 one case where this was not true.
3098
520de300
PH
3099PH/35 The error "getsockname() failed: connection reset by peer" was being
3100 written to the panic log as well as the main log, but it isn't really
3101 panic-worthy as it just means the connection died rather early on. I have
3102 removed the panic log writing for the ECONNRESET error when getsockname()
3103 fails.
3104
48c7f9e2
PH
3105PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
3106 runs only) independently of the message's sender address. This meant
3107 that, if the 4xx error was in fact related to the sender, a different
3108 message to the same recipient with a different sender could confuse
4c04137d 3109 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
3110 server, but other circumstances could also provoke similar problems.
3111 I have changed the default so that the retry time for these errors is now
3112 based a combination of the sender and recipient addresses. This change
3113 can be overridden by setting address_retry_include_sender=false in the
3114 smtp transport.
3115
99ea1c86
PH
3116PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
3117 remote server are returned as part of bounce messages. This was not
3118 happening for LMTP over a pipe (the lmtp transport), but now it is the
3119 same for both kinds of LMTP.
3120
a2042e78
PH
3121PH/38 Despite being documented as not happening, Exim was rewriting addresses
3122 in header lines that were in fact CNAMEs. This is no longer the case.
3123
4fbcfc2e
PH
3124PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
3125 and queue runs started by the daemon processed all messages. This has
3126 been fixed so that -R and -S can now usefully be given with -q<time>.
3127
aa41d2de
PH
3128PH/40 Import PCRE release 6.7 (fixes some bugs).
3129
af561417
PH
3130PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
3131
3cc66b45
PH
3132PH/42 Give an error if -q is specified more than once.
3133
194cc0e4
PH
3134PH/43 Renamed the variables $interface_address and $interface_port as
3135 $received_ip_address and $received_port, to make it clear that these
3136 values apply to message reception, and not to the outgoing interface when
3137 a message is delivered. (The old names remain recognized, of course.)
3138
a401ddaa
PH
3139PH/44 There was no timeout on the connect() call when using a Unix domain
3140 socket in the ${readsocket expansion. There now is.
3141
4e88a19f
PH
3142PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3143 be meaningful with "accept".
3144
d7d7b289
SC
3145SC/01 Eximstats V1.43
3146 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3147
3148SC/02 Eximstats V1.44
3149 Use a glob alias rather than an array ref in the generated
3150 parser. This improves both readability and performance.
3151
3152SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3153 Collect SpamAssassin and rejection statistics.
3154 Don't display local sender or destination tables unless
3155 there is data to show.
3156 Added average volumes into the top table text output.
3157
3158SC/04 Eximstats V1.46
3159 Collect data on the number of addresses (recipients)
3160 as well as the number of messages.
3161
3162SC/05 Eximstats V1.47
3163 Added 'Message too big' to the list of mail rejection
3164 reasons (thanks to Marco Gaiarin).
3165
3166SC/06 Eximstats V1.48
3167 Mainlog lines which have GMT offsets and are too short to
3168 have a flag are now skipped.
3169
3170SC/07 Eximstats V1.49 (Alain Williams)
3171 Added the -emptyok flag.
3172
3173SC/08 Eximstats V1.50
3174 Fixes for obtaining the IP address from reject messages.
3175
0ea2a468
JJ
3176JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3177 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3178 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3179
3180JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3181 match 4.64-PH/13
3182
3183JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3184 are found, allow negative numbers in numeric criteria)
3185
3186JJ/06 exipick.20061117.2, added new $message_body_missing variable
3187
3188JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3189 to match changes made in 4.64-PH/43
3190
8a10f5a4
PH
3191PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3192
30e18802
PH
3193PH/47 Put in an explicit test for a DNS lookup of an address record where the
3194 "domain" is actually an IP address, and force a failure. This locks out
3195 those revolvers/nameservers that support "A-for-A" lookups, in
3196 contravention of the specifications.
3197
55728a4f
PH
3198PH/48 When a host name was looked up from an IP address, and the subsequent
3199 forward lookup of the name timed out, the host name was left in
3200 $sender_host_name, contrary to the specification.
d7d7b289 3201
d7837193
PH
3202PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3203 restricted to single-key lookups, Exim was not diagnosing an error if
3204 * or *@ was used with a query-style lookup.
3205
87054a31
PH
3206PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3207
ea2c01d2
MH
3208MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3209 long ago, but noone interested enough thought of it. Let's just say that
3210 the "1.1" means that there are some new functions that weren't there at
3211 some point in the past.
3212
e4fa6968
PH
3213PH/51 Error processing for expansion failure of helo_data from an smtp
3214 transport during callout processing was broken.
3215
56f5d9bd
PH
3216PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3217 tested/used via the -bh/-bhc/-bs options.
3218
922e1c28
PH
3219PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3220 bug, fixed in subsequent PCRE releases).
3221
21eb6e72
PH
3222PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3223 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3224
a0540757
PH
3225PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3226
944e9e9c 3227
478be7b0
SC
3228Exim version 4.63
3229-----------------
3230
3231SC/01 Use a glob alias rather than an array ref in eximstats generated
3232 parser. This improves both readability and performance.
3233
3234SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3235 Don't display local sender or destination tables in eximstats unless
3236 there is data to show.
3237 Added average volumes into the eximstats top table text output.
3238
3239SC/03 Collect data on the number of addresses (recipients) as well
3240 as the number of messages in eximstats.
3241
2b965a65
TF
3242TF/01 Correct an error in the documentation for the redirect router. Exim
3243 does (usually) call initgroups() when daemonizing.
478be7b0 3244
45b91596
PH
3245TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3246 with consistent privilege compared to when running as a daemon.
478be7b0 3247
c59f5781
TF
3248TF/03 Note in the spec that $authenticated_id is not set for local
3249 submissions from trusted users.
3250
90fc3069
TF
3251TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3252 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3253
6083aca0
TF
3254