Don't open spool data-files which are symlinks
[exim.git] / doc / doc-txt / ChangeLog
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495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
d99f54e4
JH
8Exim version 4.92
9-----------------
10
9723f966
JH
11JH/01 Remove code calling the customisable local_scan function, unless a new
12 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
13
14JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
64b67b65
JH
15 non-signal-safe functions being used.
16
17JH/03 Bug 2269: When presented with a received message having a stupidly large
18 number of DKIM-Signature headers, disable DKIM verification to avoid
19 a resource-consumption attack. The limit is set at twenty.
9723f966 20
ea7b1f16
JH
21JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
22 report of oldest_pass in ${authres } in consequence, and separate out
23 some descriptions of reasons for verification fail.
24
cfbb0d24
JH
25JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
26 files in the spool were present and unlocked. A queue-runner could spot
27 them, resulting in a duplicate delivery. Fix that by doing the unlock
0488984d
JH
28 after the unlink. Investigation by Tim Stewart. Take the opportunity to
29 add more error-checking on spoolfile handling while that code is being
cfbb0d24
JH
30 messed with.
31
85defcf0
PP
32PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
33 No known attacks, no CVE, this is defensive hardening.
34
9723f966 35
bb264f6b
JH
36Exim version 4.91
37-----------------
459fca58 38
c39c8870 39GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
JH
40 When redis_servers is set to a list of > 1 element, and the Redis servers
41 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
42 case of MOVED into a DEFER case instead, thus moving the query onto the
43 next server in the list. For a cluster of N elements, all N servers must
44 be defined in redis_servers.
c39c8870 45
0800ef83
GF
46GF/02 Catch and remove uninitialized value warning in exiqsumm
47 Check for existence of @ARGV before looking at $ARGV[0]
48
459fca58
JH
49JH/01 Replace the store_release() internal interface with store_newblock(),
50 which internalises the check required to safely use the old one, plus
51 the allocate and data copy operations duplicated in both (!) of the
52 extant use locations.
53
944e8b37
JH
54JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
55 modifier. This matches the restriction on the commandline.
56
bbfb5dcd
JH
57JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
58 Previously only the last row was returned.
59
a05d3e34
JH
60JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
61 we assumed that tags in the header were well-formed, and parsed the
62 element content after inspecting only the first char of the tag.
63 Assumptions at that stage could crash the receive process on malformed
64 input.
65
ce93c6d8
JH
66JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
67 While running the DKIM ACL we operate on the Permanent memory pool so that
68 variables created with "set" persist to the DATA ACL. Also (at any time)
69 DNS lookups that fail create cache records using the Permanent pool. But
70 expansions release any allocations made on the current pool - so a dnsdb
71 lookup expansion done in the DKIM ACL releases the memory used for the
72 DNS negative-cache, and bad things result. Solution is to switch to the
73 Main pool for expansions.
74 While we're in that code, add checks on the DNS cache during store_reset,
75 active in the testsuite.
76 Problem spotted, and debugging aided, by Wolfgang Breyha.
77
2577f55f
JH
78JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
79 When none of the hosts presented to a transport match an already-open
80 connection, close it and proceed with the list. Previously we would
81 queue the message. Spotted by Lena with Yahoo, probably involving
82 round-robin DNS.
83
5b6f7658
JH
84JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
85 Previously a spurious "250 OK id=" response was appended to the proper
86 failure response.
87
c11d665d
JH
88JH/08 The "support for" informational output now, which built with Content
89 Scanning support, has a line for the malware scanner interfaces compiled
90 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
91
92JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
93 by the template makefile "src/EDITME". The "STREAM" support for an older
94 ClamAV interface method is removed.
c11d665d 95
ba0e37b1
JH
96JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
97 rows affected is given instead).
98
96508de1
JH
99JH/11 The runtime Berkeley DB library version is now additionally output by
100 "exim -d -bV". Previously only the compile-time version was shown.
101
06fdb9f7
JH
102JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
103 SMTP connection. Previously, when one had more receipients than the
104 first, an abortive onward connection was made. Move to full support for
105 multiple onward connections in sequence, handling cutthrough connection
106 for all multi-message initiating connections.
107
f83a760f
JH
108JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
109 routers. Previously, a multi-recipient message would fail to match the
110 onward-connection opened for the first recipient, and cause its closure.
111
f1fed05b
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112JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
113 a timeout on read on a GnuTLS initiating connection, resulting in the
114 initiating connection being dropped. This mattered most when the callout
115 was marked defer_ok. Fix to keep the two timeout-detection methods
116 separate.
117
051d5efa
JH
118JH/15 Relax results from ACL control request to enable cutthrough, in
119 unsupported situations, from error to silently (except under debug)
120 ignoring. This covers use with PRDR, frozen messages, queue-only and
121 fake-reject.
122
cf3cd306
HSHR
123HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
124
744976d4
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125JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
126 metadata, resulting in a crash in free().
127
aab9a843 128PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 129 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 130 Broken also in d185889f4, with init system revamp.
7be14582 131
83d2a861
JH
132JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
133 Previously we abruptly closed the connection after reading a malware-
134 found indication; now we go on to read the "scan ok" response line,
135 and send a quit.
136
6741531c
JH
137JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
138 ACL. Previously, a crash would result.
139
85e03244
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140JH/19 Speed up macro lookups during configuration file read, by skipping non-
141 macro text after a replacement (previously it was only once per line) and
142 by skipping builtin macros when searching for an uppercase lead character.
143
c0635b6d
JH
144JH/20 DANE support moved from Experimental to mainline. The Makefile control
145 for the build is renamed.
146
b808677c
JH
147JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
148 was allocated for every new TLS startup, meaning one per message. Fix
149 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
150
6678c382
JH
151JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
152 reported the original. Fix to report (as far as possible) the ACL
153 result replacing the original.
154
dec766a1
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155JH/23 Fix memory leak during multi-message connections using STARTTLS under
156 OpenSSL. Certificate information is loaded for every new TLS startup,
157 and the resources needed to be freed.
158
15ae19f9
JH
159JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
160
e6532c4a
JH
161JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
162 was not propagated.
163
2556b3c6
SA
164JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
165 DATA response info to the (existing) per-recipient response info for
166 the "C=" log element. It can have useful tracking info from the
167 destination system. Patch from Simon Arlott.
168
fc8cd529
JH
169JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
170 length value. Previously this would segfault.
171
71bb51e0
HSHR
172HS/02 Support Avast multiline protoocol, this allows passing flags to
173 newer versions of the scanner.
174
e04bfa34
JH
175JH/28 Ensure that variables possibly set during message acceptance are marked
176 dead before release of memory in the daemon loop. This stops complaints
177 about them when the debug_store option is enabled. Discovered specifically
178 for sender_rate_period, but applies to a whole set of variables.
c232fc99
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179 Do the same for the queue-runner and queue-list loops, for variables set
180 from spool message files. Do the same for the SMTP per-message loop, for
181 certain variables indirectly set in ACL operations.
e04bfa34 182
ecce6d9a
JH
183JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
184 as a multi-recipient message from a mailinglist manager). The coding had
185 an arbitrary cutoff number of characters while checking for more input;
186 enforced by writing a NUL into the buffer. This corrupted long / fast
187 input. The problem was exposed more widely when more pipelineing of SMTP
188 responses was introduced, and one Exim system was feeding another.
189 The symptom is log complaints of SMTP syntax error (NUL chars) on the
190 receiving system, and refused recipients seen by the sending system
191 (propating to people being dropped from mailing lists).
192 Discovered and pinpointed by David Carter.
193
c9cf9ac4
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194JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
195 replaced by the ${authresults } expansion.
196
b3b37076
JH
197JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
198
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HSHR
199HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
200 allows proper process termination in container environments.
201
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JH
202JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
203 Previously the "final dot" had a newline after it; ensure it is CR,LF.
204
8f0776b5
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205JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
206 and "err_perm", deprecated since 4.83 when the RFC-defined words
207 "temperror" and "permerror" were introduced.
208
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209JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
210 transport-filters or DKIM-signing. The restriction was lost in the
211 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 212 Extend the restriction to also cover ARC-signing.
857eaf37 213
c85476e9
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214JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
215 in defer=pass mode supply a 450 to the initiator. Previously the message
216 would be spooled.
217
405074ad
PP
218PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
219 tls_require_ciphers is used as before.
220
eb445b04
HSHR
221HS/03 Malware Avast: Better match the Avast multiline protocol. Add
222 "pass_unscanned". Only tmpfails from the scanner are written to
223 the paniclog, as they may require admin intervention (permission
224 denied, license issues). Other scanner errors (like decompression
225 bombs) do not cause a paniclog entry.
ad93c40f 226
d342446f
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227JH/36 Fix reinitialisation of DKIM logging variable between messages.
228 Previously it was possible to log spurious information in receive log
229 lines.
230
a28050f8
JH
231JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
232 triggered odd behaviour from Outlook Express clients.
233
ddd16464
PP
234PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
235 suffix list.
236
321ef002
JH
237JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
238 since the IETF WG has not yet settled on that versus the original
239 "bare" representation.
240
3203e7ba
JH
241JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
242 Previously the millisecond value corrupted the output.
243 Fix also for syslog_pid=no and log_selector +pid, for which the pid
244 corrupted the output.
245
bbfb5dcd 246
acfc18c3
PP
247Exim version 4.90
248-----------------
249
250JH/01 Rework error string handling in TLS interface so that the caller in
251 more cases is responsible for logging. This permits library-sourced
252 string to be attached to addresses during delivery, and collapses
253 pairs of long lines into single ones.
254
856d1e16
PP
255PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
256 during configuration. Wildcards are allowed and expanded.
257
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258JH/02 Rework error string handling in DKIM to pass more info back to callers.
259 This permits better logging.
260
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261JH/03 Rework the transport continued-connection mechanism: when TLS is active,
262 do not close it down and have the child transport start it up again on
263 the passed-on TCP connection. Instead, proxy the child (and any
264 subsequent ones) for TLS via a unix-domain socket channel. Logging is
265 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 266 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 267
fc3f96af
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268JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
269 identical IP addresses on different listening ports. Will also affect
270 "exiwhat" output.
271
98913c8e
BK
272PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
273 add noisy ifdef guards to special-case this sillyness.
274 Patch from Bernd Kuhls.
275
8d909960
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276JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
277 than 255 are no longer allowed.
278
7006ee24
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279JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
280 Disable the session-cache too, which might reduce our load. Since we
281 currrectly use a new context for every connection, both as server and
282 client, there is no benefit for these.
283 GnuTLS appears to not support tickets server-side by default (we don't
284 call gnutls_session_ticket_enable_server()) but client side is enabled
285 by default on recent versions (3.1.3 +) unless the PFS priority string
286 is used (3.2.4 +).
287
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288PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
289 <https://reproducible-builds.org/specs/source-date-epoch/>.
290
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291JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
292 the check for any unsuccessful recipients did not notice the limit, and
293 erroneously found still-pending ones.
294
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295JH/08 Pipeline CHUNKING command and data together, on kernels that support
296 MSG_MORE. Only in-clear (not on TLS connections).
297
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298JH/09 Avoid using a temporary file during transport using dkim. Unless a
299 transport-filter is involved we can buffer the headers in memory for
300 creating the signature, and read the spool data file once for the
301 signature and again for transmission.
302
eeb35890
JH
303JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
304 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 305 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 306
b7d3afcf
JH
307JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
308 case where the routing stage had gathered several addresses to send to
309 a host before calling the transport for the first, we previously failed
310 to close down TLS in the old transport process before passing the TCP
311 connection to the new process. The new one sent a STARTTLS command
312 which naturally failed, giving a failed delivery and bloating the retry
313 database. Investigation and fix prototype from Wolfgang Breyha.
314
40525d07
JH
315JH/12 Fix check on SMTP command input synchronisation. Previously there were
316 false-negatives in the check that the sender had not preempted a response
317 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 318 awareness of the SMTP input buffering.
40525d07 319
f33875c3
PP
320PP/04 Add commandline_checks_require_admin option.
321 Exim drops privileges sanely, various checks such as -be aren't a
322 security problem, as long as you trust local users with access to their
323 own account. When invoked by services which pass untrusted data to
324 Exim, this might be an issue. Set this option in main configuration
325 AND make fixes to the calling application, such as using `--` to stop
326 processing options.
327
a5ffa9b4
JH
328JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
329 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
330 responses to those, into a single TLS record each way (this usually means
331 a single packet). As a side issue, smtp_enforce_sync now works on TLS
332 connections.
925ac8e4 333
6600985a
PP
334PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
335 affects you only if you're dancing at the edge of the param size limits.
336 If you are, and this message makes sense to you, then: raise the
337 configured limit or use OpenSSL 1.1. Nothing we can do for older
338 versions.
339
ac4d558b
JH
340JH/14 For the "sock" variant of the malware scanner interface, accept an empty
341 cmdline element to get the documented default one. Previously it was
342 inaccessible.
343
e69636bc
JH
344JH/15 Fix a crash in the smtp transport caused when two hosts in succession
345 are unsuable for non-message-specific reasons - eg. connection timeout,
346 banner-time rejection.
347
a843a57e
JH
348JH/16 Fix logging of delivery remote port, when specified by router, under
349 callout/hold.
350
8e041ae0
PP
351PP/06 Repair manualroute's ability to take options in any order, even if one
352 is the name of a transport.
833c70bc
PP
353 Fixes bug 2140.
354
35a04365
HSHR
355HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
356
4226691b
JH
357JH/17 Change the list-building routines interface to use the expanding-string
358 triplet model, for better allocation and copying behaviour.
359
d185889f
JH
360JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
361 Previously it was constructed the first time a possibly-matching string
362 was met in the configuration file input during startup; now it is done
363 during compilation.
364
0a6c178c
JH
365JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
366 compatible one, to avoid the (poorly documented) possibility of a config
367 file in the working directory redirecting the DB files, possibly correpting
02745400 368 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 369
fae8970d
JH
370JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
371 cache-hot. Previously, although the result was properly cached, the
372 initial verify call returned a defer.
373
ad1a76fe 374JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
375 the main verify for receipient in uncached-mode.
376
ad1a76fe
JH
377JH/22 Retire historical build files to an "unsupported" subdir. These are
378 defined as "ones for which we have no current evidence of testing".
379
135e9496
JH
380JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
381 if present. Previously it was ignored.
382
f2ed27cf
JH
383JH/24 Start using specified-initialisers in C structure init coding. This is
384 a C99 feature (it's 2017, so now considered safe).
385
7eb0e5d2
JH
386JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
387 if was a fixed-sized field and bitmask ops via macros; it is now more
388 extensible.
389
4f9f4be4
390PP/07 GitHub PR 56: Apply MariaDB build fix.
391 Patch provided by Jaroslav Škarvada.
392
dc4de9cc
PP
393PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
394 during Coverity cleanups [4.87 JH/47]
395 Diagnosis and fix provided by Michael Fischer v. Mollard.
396
ea18931d
JH
397JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
398 the right size to place the terminating semicolon on its own folded
399 line, the header hash was calculated to an incorrect value thanks to
400 the (relaxed) space the fold became.
401
2cee425a
HSHR
402HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
403 and confused the parent.
404
848214f7
JH
405JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
406 which could crash as a result. This could lead to undeliverable messages.
407
9e0ed81f
JH
408JH/28 Logging: "next input sent too soon" now shows where input was truncated
409 for log purposes.
410
2540f2f8
JH
411JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
412 matters on fast-turnover and PID-randomising systems, which were getting
413 out-of-order delivery.
414
e5ab0ba9
JH
415JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
416 a possibly-overlapping copy. The symptom was that "Remote host closed
417 connection in response to HELO" was logged instead of the actual 4xx
418 error for the HELO.
419
e99a3a6c
JH
420JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
421 Previously only that bufferd was discarded, resulting in SYMTP command
422 desynchronisation.
423
18067c75
JH
424JH/32 DKIM: when a message has multiple signatures matching an identity given
425 in dkim_verify_signers, run the dkim acl once for each. Previously only
426 one run was done. Bug 2189.
427
72934ba7
JH
428JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
429 "panic the current process" to "deliberately defer". The panic log is
430 still written with the problem list name; the mail and reject logs now
431 get a temp-reject line for the message that was being handled, saying
432 something like "domains check lookup or other defer". The SMTP 451
433 message is still "Temporary local problem".
434
625667b6
JH
435JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
436 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
437 freed. CVE-2017-16943.
438
439HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
440 from SMTP input. Previously it was always done; now only done for DATA
441 and not BDAT commands. CVE-2017-16944.
625667b6 442
d21bf202
JH
443JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
444 to the message (such as an overlong header line). Previously this was
445 not done and we did not exit BDAT mode. Followon from the previous item
446 though a different problem.
447
acfc18c3 448
fd047340 449Exim version 4.89
acfc18c3 450-----------------
4c57a40e 451
9427e879 452JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 453 than -2003 did; needs libidn2 in addition to libidn.
fd047340 454
7b283890
JH
455JH/02 The path option on a pipe transport is now expanded before use.
456
4c57a40e
PP
457PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
458 Patch provided by "Björn", documentation fix added too.
459
5d036699
JH
460JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
461 missing a wire-to-host endian conversion.
462
f4630439
JH
463JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
464 close after a BDAT command line could be taken as a following command,
465 giving a synch failure. Fix by only checking for synch immediately
466 before acknowledging the chunk.
467
f988ce57
JS
468PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
469 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
470 macro. Patches provided by Josh Soref.
471
bd8fbe36
JH
472JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
473 Previously we did not; the RFC seems ambiguous and VRFY is not listed
474 by IANA as a service extension. However, John Klensin suggests that we
475 should.
476
477JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
478 the dkim code may be unix-mode line endings rather than smtp wire-format
479 CRLF, so prepend a CR to any bare LF.
fd047340 480
bd8fbe36 481JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
482 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
483
bd8fbe36
JH
484JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
485 the first were themselves being wrongly included in the feed into dkim
486 processing; with most chunk sizes in use this resulted in an incorrect
487 body hash calculated value.
488
eea19017
JH
489JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
490 DKIM signature block, for verification. Although advised against by
491 standards it is specifically not ruled illegal.
492
44e6651b
JH
493JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
494
495JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
496 missing a body hash (the bh= tag).
497
498JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
499 It seems that HAProxy sends the Proxy Protocol information in clear and
500 only then does a TLS startup, so do the same.
501
502JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
503 TCP connections (such as for Spamd) unless the daemon successfully set
504 Fast Open mode on its listening sockets. This fixes breakage seen on
505 too-old kernels or those not configured for Fast Open, at the cost of
506 requiring both directions being enabled for TFO, and TFO never being used
507 by non-daemon-related Exim processes.
508
509JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
510 endings, at least on the first header line. Try to canonify any that get
511 past that check, despite the cost.
512
b6040544
JH
513JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
514 now limited to an arbitrary five deep, while parsing addresses with the
515 strip_excess_angle_brackets option enabled.
516
f700ea4d
PP
517PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
518 instead leave the unprompted TLS handshake in socket buffer for the
519 TLS library to consume.
520
da88acae
PP
521PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
522
f6ef9370
PP
523PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
524
90341c71
JH
525JH/16 Drop variables when they go out of scope. Memory management drops a whole
526 region in one operation, for speed, and this leaves assigned pointers
527 dangling. Add checks run only under the testsuite which checks all
528 variables at a store-reset and panics on a dangling pointer; add code
529 explicitly nulling out all the variables discovered. Fixes one known
530 bug: a transport crash, where a dangling pointer for $sending_ip_address
531 originally assigned in a verify callout, is re-used.
532
1ec2ab36
PP
533PP/06 Drop '.' from @INC in various Perl scripts.
534
535PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
536
537PP/08 Reduce a number of compilation warnings under clang; building with
538 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
539 should be warning-free.
540
8b2b9480
PP
541JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
542
543HS/01 Fix portability problems introduced by PP/08 for platforms where
544 realloc(NULL) is not equivalent to malloc() [SunOS et al].
545
d953610f
HSHR
546HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
547 chunk. This allows us to accept broken chunked messages. We need a more
548 general solution here.
549
7dc5f827
PP
550PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
551 already-broken messages in the queue.
552
4bb432cb
PP
553JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
554
3b1a84c8
PP
555JH/19 Fix reference counting bug in routing-generated-address tracking.
556
902fbd69 557
8d042305
JH
558Exim version 4.88
559-----------------
4c57a40e 560
9094b84b
JH
561JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
562 supports it and a size is available (ie. the sending peer gave us one).
8d042305 563
03d5892b
JH
564JH/02 The obsolete acl condition "demime" is removed (finally, after ten
565 years of being deprecated). The replacements are the ACLs
566 acl_smtp_mime and acl_not_smtp_mime.
567
4b0fe319
JH
568JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
569 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
570 or even an in-clear connection were permitted. Now, if the host lookup
571 was dnssec and dane was requested then the host is only used if the
572 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
573 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
574 if one fails this test.
575 This means that a poorly-configured remote DNS will make it incommunicado;
576 but it protects against a DNS-interception attack on it.
577
789f8a4f
JH
578JH/04 Bug 1810: make continued-use of an open smtp transport connection
579 non-noisy when a race steals the message being considered.
580
23bb6982 581JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 582 self-signed certificate for inbound TLS connections.
23bb6982 583
0bd1b1ed 584JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 585 in rewrites and routers.
0bd1b1ed 586
20b9a2dc
JH
587JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
588 and logged a warning sing 4.83; now they are a configuration file error.
589
05392bbc
JH
590JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
591 (lacking @domain). Apply the same qualification processing as RCPT.
592
1a6230a3
JH
593JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
594
cfab9d68
JH
595JH/10 Support ${sha256:} applied to a string (as well as the previous
596 certificate).
597
98c82a3d
JH
598JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
599 a cutthrough deliver is pending, as we always want to make a connection.
600 This also avoids re-routing the message when later placing the cutthrough
601 connection after a verify cache hit.
602 Do not update it with the verify result either.
603
604JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
605 when routing results in more than one destination address.
606
ae8386f0
JH
607JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
608 signing (which inhibits the cutthrough capability). Previously only
609 the presence of an option was tested; now an expansion evaluating as
610 empty is permissible (obviously it should depend only on data available
611 when the cutthrough connection is made).
612
0d9fa8c0
JH
613JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
614 the relevant preceding SMTP command did not note the pipelining mode.
615
3581f321
JH
616JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
617 Previously they were not counted.
618
ef3a1a30
JH
619JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
620 as one having no matching records. Previously we deferred the message
621 that needed the lookup.
622
4c04137d 623JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
624 distinguished as "(=".
625
1435d4b2
JH
626JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
627 for missing MX records. Previously it only worked for missing A records.
628
eea0defe
JB
629JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
630
631JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
632 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 633
4c04137d 634JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
635 even for a "none" policy. Patch from Tony Meyer.
636
1c788856
JH
637JH/22 Fix continued use of a connection for further deliveries. If a port was
638 specified by a router, it must also match for the delivery to be
639 compatible.
640
e3b1f624
JH
641JH/23 Bug 1874: fix continued use of a connection for further deliveries.
642 When one of the recipients of a message was unsuitable for the connection
643 (has no matching addresses), we lost track of needing to mark it
644 deferred. As a result mail would be lost.
645
a57ce043
JH
646JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
647
f59aaaaa 648JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
649 takes up less space and should be simpler to maintain. Merge the ACL
650 condition decode tables also, with similar effect.
d7bed771 651
d1f9fb42
JH
652JH/26 Fix problem with one_time used on a redirect router which returned the
653 parent address unchanged. A retry would see the parent address marked as
654 delivered, so not attempt the (identical) child. As a result mail would
655 be lost.
656
92b0827a
JH
657JH/27 Fix a possible security hole, wherein a process operating with the Exim
658 UID can gain a root shell. Credit to http://www.halfdog.net/ for
659 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
660 itself :(
661
ddf1b11a
JH
662JH/28 Enable {spool,log} filesystem space and inode checks as default.
663 Main config options check_{log,spool}_{inodes,space} are now
664 100 inodes, 10MB unless set otherwise in the configuration.
665
3cc3f762
JH
666JH/29 Fix the connection_reject log selector to apply to the connect ACL.
667 Previously it only applied to the main-section connection policy
668 options.
669
ae5afa61
JH
670JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
671
317e40ac
PP
672PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
673 by me. Added RFC7919 DH primes as an alternative.
674
8b0fb68e
PP
675PP/02 Unbreak build via pkg-config with new hash support when crypto headers
676 are not in the system include path.
677
ad7fc6eb 678JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 679 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
680 Exim did stdio operations after fclose. This was exposed by a recent
681 change which nulled out the file handle after the fclose.
ad7fc6eb 682
ee5b1e28
JH
683JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
684 signed directly by the cert-signing cert, rather than an intermediate
685 OCSP-signing cert. This is the model used by LetsEncrypt.
686
5ddc9771
JH
687JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
688
8d73599f
JH
689HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
690 an incoming connection.
691
446415f5
HSHR
692HS/02 Bug 1802: Do not half-close the connection after sending a request
693 to rspamd.
694
8e53a4fc
HSHR
695HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
696 fallback to "prime256v1".
8d042305 697
87cb4a16 698JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 699 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
700
701
0d9b78be
JH
702Exim version 4.87
703-----------------
4c57a40e 704
82d14d6a
JH
705JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
706 and 3.4.4 - once the server is enabled to respond to an OCSP request
707 it does even when not requested, resulting in a stapling non-aware
708 client dropping the TLS connection.
0d9b78be 709
6c6d6e48
TF
710TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
711 support variable-length bit vectors. No functional change.
712
ac881e27
TF
713TF/02 Improve the consistency of logging incoming and outgoing interfaces.
714 The I= interface field on outgoing lines is now after the H= remote
715 host field, same as incoming lines. There is a separate
716 outgoing_interface log selector which allows you to disable the
717 outgoing I= field.
718
c8899c20
JH
719JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
720 If not running log_selector +smtp_connection the mainlog would be held
721 open indefinitely after a "too many connections" event, including to a
722 deleted file after a log rotate. Leave the per net connection logging
723 leaving it open for efficiency as that will be quickly detected by the
724 check on the next write.
725
f1b81d81
HSHR
726HS/01 Bug 1671: Fix post transport crash.
727 Processing the wait-<transport> messages could crash the delivery
728 process if the message IDs didn't exist for some reason. When
729 using 'split_spool_directory=yes' the construction of the spool
730 file name failed already, exposing the same netto behaviour.
731
f38917cc
JH
732JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
733 mime_regex ACL conditions.
734
895fbaf2
JH
735JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
736 to DSN fail messages (bounces): remote IP, remote greeting, remote response
737 to HELO, local diagnostic string.
738
805bb5c3
JH
739JH/05 Downgrade message for a TLS-certificate-based authentication fail from
740 log line to debug. Even when configured with a tls authenticator many
741 client connections are expected to not authenticate in this way, so
742 an authenticate fail is not an error.
743
56c2a7be
HSHR
744HS/02 Add the Exim version string to the process info. This way exiwhat
745 gives some more detail about the running daemon.
746
4c04137d 747JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
748 matter for fast-change records such as DNSBLs.
749
6f6dedcc
JH
750JH/07 Bug 1678: Always record an interface option value, if set, as part of a
751 retry record, even if constant. There may be multiple transports with
752 different interface settings and the retry behaviour needs to be kept
753 distinct.
754
0f557e90
JH
755JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
756
757JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
758
ec0eb1a3
JH
759JH/10 Bug 840: fix log_defer_output option of pipe transport
760
41e93589
JH
761JH/11 Bug 830: use same host for all RCPTS of a message, even under
762 hosts_randomize. This matters a lot when combined with mua_wrapper.
763
98b98887 764JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
765 ${quote_pgsql:<string>} operator.
766
98b98887
JH
767JH/13 Bug 1708: avoid misaligned access in cached lookup.
768
858e91c2
JH
769JH/14 Change header file name for freeradius-client. Relevant if compiling
770 with Radius support; from the Gentoo tree and checked under Fedora.
771
772JH/15 Bug 1712: Introduce $prdr_requested flag variable
773
6ff55e50
JH
774JH/16 Bug 1714: Permit an empty string as expansion result for transport
775 option transport_filter, meaning no filtering.
776
3b957582
JB
777JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
778
23f3dc67
JH
779JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
780 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 781 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
782 If a server certificate is not supplied (via tls_certificate) an error is
783 logged, and clients will find TLS connections fail on startup. Presumably
784 they will retry in-clear.
785 Packagers of Exim are strongly encouraged to create a server certificate
786 at installation time.
787
240c288f
JH
788HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
789 with the $config_file variable.
790
5ef5dd52
JB
791JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
792 in transport context, after the attempt, and per-recipient. The latter type
793 is per host attempted. The event data is the error message, and the errno
794 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 795 and the trailing two digits of the smtp 4xx response.
5ef5dd52 796
e161710d
GF
797GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
798 to write to mainlog (or rejectlog, paniclog) in the window between file
799 creation and permissions/ownership being changed. Particularly affects
800 installations where exicyclog is run as root, rather than exim user;
801 result is that the running daemon panics and dies.
802
a159f203
JH
803JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
804
7f06582c
JH
805JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
806 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
807 "pri" and "weight". Note that the previous implicit priority given by the
808 list order is no longer honoured.
809
4c04137d 810JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
811 for DKIM processing.
812
f0989ec0
JH
813JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
814 by defining SUPPORT_SOCKS.
74f150bf 815
cee5f132
JH
816JH/26 Move PROXY support from Experimental to mainline, enabled for a build
817 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
818 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
819 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 820
8c5d388a
JH
821JH/27 Move Internationalisation support from Experimental to mainline, enabled
822 for a build by defining SUPPORT_I18N
823
2d8d625b
JH
824JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
825 of the query string, and make ${quote_redis:} do that quoting.
826
0cbf2b82
JH
827JH/29 Move Events support from Experimental to mainline, enabled by default
828 and removable for a build by defining DISABLE_EVENT.
829
f2f2c91b
JH
830JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
831
ce325893
JH
832JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
833 cached by the daemon.
834
de78e2d5
JH
835JH/32 Move Redis support from Experimental to mainline, enabled for a build
836 by defining LOOKUP_REDIS. The libhiredis library is required.
837
379ba7d0
JH
838JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
839 keys are given for lookup.
840
f444c2c7
JH
841JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
842 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
843 only supported when built with TLS support. The PolarSSL SHA routines
844 are still used when the TLS library is too old for convenient support.
f444c2c7 845
a57b6200
JH
846JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
847 openssl_options), for security. OpenSSL forces this from version 1.1.0
848 server-side so match that on older versions.
849
07c73177 850JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 851 allocation for $value could be released as the expansion processing
07c73177 852 concluded, but leaving the global pointer active for it.
fa01e4f8 853
4f6ae5c3
JH
854JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
855 and to use the domains and local_parts ACL conditions.
856
1bc460a6
JH
857JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
858 incorrectly not doubled on cutthrough transmission, hence seen as a
859 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 860 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
861 via the normal store-and-forward channel. This could result in duplicates
862 received - but deduplicating mailstores were liable to retain only the
863 initial truncated version.
864
ab9152ff 865JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 866
67e87fcf
JH
867JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
868
ab9152ff
JH
869JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
870 we're in there, support oversigning also; bug 1309.
871
af483912
JH
872JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
873
bc3c7bb7 874HS/04 Add support for keep_environment and add_environment options.
df3def24 875
13559da6
JH
876JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
877 either intentional arithmetic overflow during PRNG, or testing config-
878 induced overflows.
879
59eaad2b
JH
880JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
881 delivery resulted in actual delivery. Cancel cutthrough before DATA
882 stage.
883
f9334a28
JH
884JH/45 Fix cutthrough, when connection not opened by verify and target hard-
885 rejects a recipient: pass the reject to the originator.
886
dc8091e7
JH
887JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
888 Many were false-positives and ignorable, but it's worth fixing the
889 former class.
890
dfe7d917
JH
891JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
892 for the new environment-manipulation done at startup. Move the routines
893 from being local to tls.c to being global via the os.c file.
894
93cc2d6e
JH
895JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
896 an extract embedded as result-arg for a map, the first arg for extract
897 is unavailable so we cannot tell if this is a numbered or keyed
898 extraction. Accept either.
899
13559da6 900
9c695f6d
JH
901Exim version 4.86
902-----------------
4c57a40e 903
9c695f6d
JH
904JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
905 expanded.
906
506900af
JH
907JH/02 The smtp transport option "multi_domain" is now expanded.
908
ad07e9ad
JH
909JH/03 The smtp transport now requests PRDR by default, if the server offers
910 it.
911
01a4a5c5 912JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 913 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
914 can be used to disable this per-host. The build option
915 EXPERIMENTAL_CERTNAMES is withdrawn.
916
cb1d7830 917JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 918 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
919 For GnuTLS, only version 3.0.20 or later.
920
610ff438 921JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
922 (but not required) by default. The verification status is now logged by
923 default, for both outbound TLS and client-certificate supplying inbound
924 TLS connections
610ff438 925
f926e272
JH
926JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
927 sites use this now.
928
50dc7409
JH
929JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
930 Status Notification (bounce) messages are now MIME format per RFC 3464.
931 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
932 under the control of the dsn_advertise_hosts option, and routers may
933 have a dsn_lasthop option.
934
0f0c8159
JH
935JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
936 default, modifiable by a malware= option. The list separator for
23763898 937 the options can now be changed in the usual way. Bug 68.
4e71661f 938
1ad6489e
JH
939JH/10 The smtp_receive_timeout main option is now expanded before use.
940
aeaf5db3
JH
941JH/11 The incoming_interface log option now also enables logging of the
942 local interface on delivery outgoing connections.
943
5032d1cf
JH
944JH/12 The cutthrough-routing facility now supports multi-recipient mails,
945 if the interface and destination host and port all match.
946
7e8360e6
JH
947JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
948 /defer_ok option.
949
c5f280e2
AL
950JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
951 Patch from Andrew Lewis.
952
fd4d8871 953JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 954 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
955 modifiers per server. Patch originally by <rommer@active.by>.
956
957JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
958 and remote servers. Remote servers can be IPv6 addresses, and
959 specify a port-range.
fd4d8871 960
23763898
JH
961JH/17 Bug 68: The spamd_address main option now supports an optional
962 timeout value per server.
963
2ad78978
JH
964JH/18 Bug 1581: Router and transport options headers_add/remove can
965 now have the list separator specified.
966
8a512ed5 967JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 968 option values.
8a512ed5 969
82c0c8ea 970JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
971 under OpenSSL.
972
cc00f4af
JH
973JH/21 Support for the A6 type of dns record is withdrawn.
974
82c0c8ea
JH
975JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
976 rather than the verbs used.
977
b980ed83
JH
978JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
979 from 255 to 1024 chars.
980
6c9ed72e
JH
981JH/24 Verification callouts now attempt to use TLS by default.
982
cfab9d68 983HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 984 are generic router options now. The defaults didn't change.
50dc7409 985
f846c8f5
JH
986JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
987 Original patch from Alexander Shikoff, worked over by JH.
988
fd4c285c
HSHR
989HS/02 Bug 1575: exigrep falls back to autodetection of compressed
990 files if ZCAT_COMMAND is not executable.
991
4c04137d 992JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 993
d2a2c69b
JH
994JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
995
8241d8dd
JH
996JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
997 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 998 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
999 (and we were inconsistent anyway for A-only vs AAAA+A).
1000
1f12df4d
JH
1001JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1002
1f155f8e
JH
1003JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1004 when evaluating $sender_host_dnssec.
1005
1705dd20
JH
1006JH/31 Check the HELO verification lookup for DNSSEC, adding new
1007 $sender_helo_dnssec variable.
1008
038597d2
PP
1009JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1010
474f71bf
JH
1011JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1012
7137ca4b
JH
1013JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1014
dcb1095c
JH
1015JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1016 documented as working, but never had. Support all but $spam_report.
1017
2f460950
JH
1018JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1019 added for tls authenticator.
1020
2f680c0c
HSHR
1021HS/03 Add perl_taintmode main config option
1022
9c695f6d 1023
e449c3b0
TL
1024Exim version 4.85
1025-----------------
4c57a40e 1026
e449c3b0
TL
1027TL/01 When running the test suite, the README says that variables such as
1028 no_msglog_check are global and can be placed anywhere in a specific
1029 test's script, however it was observed that placement needed to be near
1030 the beginning for it to behave that way. Changed the runtest perl
1031 script to read through the entire script once to detect and set these
1032 variables, reset to the beginning of the script, and then run through
1033 the script parsing/test process like normal.
1034
ac20058f
TL
1035TL/02 The BSD's have an arc4random API. One of the functions to induce
1036 adding randomness was arc4random_stir(), but it has been removed in
1037 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1038 function when detected.
1039
a9b8ec8b
JH
1040JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1041 cause callback expansion.
1042
6286d7c4
TL
1043TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1044 syntax errors in an expansion can be treated as a string instead of
1045 logging or causing an error, due to the internal use of bool_lax
1046 instead of bool when processing it.
1047
0f06b4f2 1048JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1049 server certificates when making smtp deliveries.
1050
be36e572
JH
1051JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1052
ac4ef9bd
JH
1053JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1054
0eb51736
TL
1055TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1056
c713ca4b
TL
1057TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1058 Merged patch from Sebastian Wiedenroth.
e449c3b0 1059
bd21a787
WB
1060JH/05 Fix results-pipe from transport process. Several recipients, combined
1061 with certificate use, exposed issues where response data items split
1062 over buffer boundaries were not parsed properly. This eventually
1063 resulted in duplicates being sent. This issue only became common enough
4c04137d 1064 to notice due to the introduction of connection certificate information,
bd21a787
WB
1065 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1066
8bc732e8
JH
1067JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1068 size buffer was used, resulting in syntax errors when an expansion
1069 exceeded it.
1070
a7fec7a7
JH
1071JH/07 Add support for directories of certificates when compiled with a GnuTLS
1072 version 3.3.6 or later.
1073
4c04137d 1074JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1075 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1076 both become "event_action", the variables become $event_name, $event_data
aec45841 1077 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1078 routers, transports and related events. The tls:cert event is now also
1079 raised for inbound connections, if the main configuration event_action
1080 option is defined.
774ef2d7 1081
eca4debb
TL
1082TL/06 In test suite, disable OCSP for old versions of openssl which contained
1083 early OCSP support, but no stapling (appears to be less than 1.0.0).
1084
8d692470
JH
1085JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1086 server certificate names available under the smtp transport option
1087 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1088 matches.
1089
e9477a08
JH
1090JH/10 Time-related extraction expansions from certificates now use the main
1091 option "timezone" setting for output formatting, and are consistent
1092 between OpenSSL and GnuTLS compilations. Bug 1541.
1093
ad4c5ff9
JH
1094JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1095 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1096
1097JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1098 include certificate info, eximon was claiming there were spoolfile
1099 syntax errors.
1100
3394b36a 1101JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1102
1103JH/14 Log delivery-related information more consistently, using the sequence
1104 "H=<name> [<ip>]" wherever possible.
1105
3394b36a
TL
1106TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1107 are problematic for Debian distribution, omit them from the release
1108 tarball.
1109
ad4c5ff9
JH
1110JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1111
4c04137d 1112JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1113 Bug 1561.
1114
1115JH/17 Fix a null-indirection in certextract expansions when a nondefault
1116 output list separator was used.
1117
8bc732e8 1118
1f0ebb98
TL
1119Exim version 4.84
1120-----------------
09728d20
TL
1121TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1122 checkers that were complaining about end of non-void function with no
1123 return.
1f0ebb98 1124
a612424f 1125JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1126 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1127
1128JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1129
1130TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1131 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1132
1f0ebb98 1133
c0e56233
TF
1134Exim version 4.83
1135-----------------
1136
1137TF/01 Correctly close the server side of TLS when forking for delivery.
1138
1139 When a message was received over SMTP with TLS, Exim failed to clear up
1140 the incoming connection properly after forking off the child process to
1141 deliver the message. In some situations the subsequent outgoing
1142 delivery connection happened to have the same fd number as the incoming
1143 connection previously had. Exim would try to use TLS and fail, logging
1144 a "Bad file descriptor" error.
1145
7245734e
TF
1146TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1147 utilities have not been installed.
1148
fd5dad68
JH
1149JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1150 temporary space as the ACL may create new global variables.
1151
5428a946
TL
1152TL/01 LDAP support uses per connection or global context settings, depending
1153 upon the detected version of the libraries at build time.
1154
a3c86431
TL
1155TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1156 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1157 were a direct connection from the outside internet. PPv2 support was
1158 updated based on HAProxy spec change in May 2014.
a3c86431 1159
aa26e137
JH
1160JH/02 Add ${listextract {number}{list}{success}{fail}}.
1161
5a1b8443
WB
1162TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1163 Properly escape header and check for NULL return.
1164
72c9e342
PP
1165PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1166 not dns_use_dnssec.
1167
76f44207
WB
1168JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1169
770747fd
MFM
1170TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1171 characters in header names, implemented as a verify condition.
1172 Contributed by Michael Fischer v. Mollard.
1173
8ddef691 1174TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1175 results permerror and temperror. Previous values are deprecated but
1176 still accepted. In a future release, err_perm and err_temp will be
1177 completely removed, which will be a backward incompatibility if the
1178 ACL tests for either of these two old results. Patch contributed by
8ddef691 1179 user bes-internal on the mailing list.
c0e56233 1180
b9c2e32f
AR
1181JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1182
e45a1c37
JH
1183JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1184 selectors, in both main and reject logs.
1185
67d81c10
JH
1186JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1187 failed delivery.
1188
b1f8e4f8
JH
1189JH/07 Add malware type "sock" for talking to simple daemon.
1190
511a6c14 1191JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1192
1193JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1194 routers/transports under cutthrough routing.
214042d2 1195
51c7471d
JH
1196JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1197 numbers. Touch up "bool" conditional to keep the same definition.
1198
3695be34
TL
1199TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1200
1e06383a
TL
1201JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1202
76146973
JH
1203JH/12 Expand items in router/transport headers_add or headers_remove lists
1204 individually rather than the list as a whole. Bug 1452.
1205
1206 Required for reasonable handling of multiple headers_ options when
1207 they may be empty; requires that headers_remove items with embedded
1208 colons must have them doubled (or the list-separator changed).
1209
8c8b8274
TL
1210TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1211 view the policy declared in the DMARC record. Currently, $dmarc_status
1212 is a combined value of both the record presence and the result of the
1213 analysis.
b1f8e4f8 1214
35aba663
JH
1215JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1216
8c51eead 1217JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1218 dnslookup router and the smtp transport (applying to the forward
1219 lookup).
8c51eead 1220
deae092e
HS
1221TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1222 of ldap servers used for a specific lookup. Patch provided by Heiko
1223 Schlichting.
35aba663 1224
fd3b6a4a 1225JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1226 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1227
8d91c6dc
LT
1228TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1229 Patch submitted by Lars Timman.
1230
2b4a568d
JH
1231JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1232
d2af03f4
HS
1233TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1234 Requires trusted mode and valid format message id, aborts otherwise.
1235 Patch contributed by Heiko Schlichting.
1236
9d1c15ef
JH
1237JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1238 certextract with support for various fields. Bug 1358.
1239
44662487
JH
1240JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1241 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1242 hosts_request_ocsp.
1243
ed3bba5f 1244JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1245 operate on certificate variables to give certificate fingerprints
9ef9101c 1246 Also new ${sha256:cert_variable}.
44662487 1247
8ccd00b1
JH
1248JH/23 The PRDR feature is moved from being Experimental into the mainline.
1249
8ded8589
TL
1250TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1251 Christian Aistleitner.
1252
f2de3a33
JH
1253JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1254
6eb02f88
TL
1255TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1256 file. Patch from Wolfgang Breyha.
1257
00bff6f6
JH
1258JH/25 Expand the coverage of the delivery $host and $host_address to
1259 client authenticators run in verify callout. Bug 1476.
1260
071c51f7
JH
1261JH/26 Port service names are now accepted for tls_on_connect_ports, to
1262 align with daemon_smtp_ports. Bug 72.
1263
a6d4c44e
TF
1264TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1265 support and error reporting did not work properly.
1266
3ae173e7
ACK
1267TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1268 and is readable. Patch from Andrew Colin Kissa.
1269
c13d09b8
TL
1270TL/14 Enhance documentation of ${run expansion and how it parses the
1271 commandline after expansion, particularly in the case when an
1272 unquoted variable expansion results in an empty value.
1273
0df4ab80
JH
1274JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1275
66be95e0
PP
1276PP/02 Fix internal collision of T_APL on systems which support RFC3123
1277 by renaming away from it. Addresses GH issue 15, reported by
1278 Jasper Wallace.
1279
1bd0d12b
JH
1280JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1281
0de7239e
TL
1282TL/15 SECURITY: prevent double expansion in math comparison functions
1283 (can expand unsanitized data). Not remotely exploitable.
1284 CVE-2014-2972
1285
fd3b6a4a 1286
2c422e6f 1287Exim version 4.82
98a90c36
PP
1288-----------------
1289
1290PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1291
12f69989
PP
1292PP/02 Make -n do something, by making it not do something.
1293 When combined with -bP, the name of an option is not output.
1294
54c90be1
PP
1295PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1296 by GnuTLS.
1297
1f4a55da
PP
1298PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1299 $sender_host_name and config options to manage this, and basic check
1300 routines.
1301
13363eba 1302PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1303
66645890 1304PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1305 (Only plugin which currently uses this is kerberos4, which nobody should
1306 be using, but we should make it available and other future plugins might
1307 conceivably use it, even though it would break NAT; stuff *should* be
1308 using channel bindings instead).
66645890 1309
a3fb9793 1310PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1311 name; added for Sendmail compatibility; requires admin caller.
1312 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1313 just ignore it); requires trusted caller.
a3fb9793 1314 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1315 Bugzilla 1117.
a3fb9793 1316
d27f98fe 1317TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1318
6822b909
TL
1319TL/02 Add +smtp_confirmation as a default logging option.
1320
e7568d51
TL
1321TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1322 Patch by Magnus Holmgren from 2007-02-20.
1323
ae0e32ee 1324TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1325 Bugzilla 1283 - Spec typo.
97f42f10 1326 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1327
1328TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1329
e2658fff
TL
1330TL/06 Add Experimental DMARC support using libopendmarc libraries.
1331
83712b39
TL
1332TL/07 Fix an out of order global option causing a segfault. Reported to dev
1333 mailing list by by Dmitry Isaikin.
1334
976b7e9f
JH
1335JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1336
be4a1376
JH
1337JH/02 Support "G" suffix to numbers in ${if comparisons.
1338
ec4b68e5
PP
1339PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1340
d7148a07
NM
1341NM/01 Bugzilla 1197 - Spec typo
1342 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1343
585121e2 1344JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1345
2519e60d
TL
1346PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1347 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1348 function.
a5f239e4 1349
13d08c90
PP
1350PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1351 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1352
bef3ea7f
JH
1353JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1354 "acl {{name}{arg}...}", and optional args on acl condition
1355 "acl = name arg..."
a5f239e4 1356
846726c5
JH
1357JH/05 Permit multiple router/transport headers_add/remove lines.
1358
3a796370
JH
1359JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1360
ea722490 1361JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1362 Performance patch from Paul Fisher. Bugzilla 1262.
1363
b1b05573
JH
1364JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1365 Bugzilla 884.
1366
362145b5
JH
1367JH/09 Add $headers_added variable, with content from use of ACL modifier
1368 add_header (but not yet added to the message). Bugzilla 199.
1369
3c0a92dc
JH
1370JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1371 Pulled from Bugzilla 817 by Wolfgang Breyha.
1372
6d7c6175
PP
1373PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1374 CVE-2012-5671
e78e6ecf 1375 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1376
6f123593
JH
1377JH/11 Add A= logging on delivery lines, and a client_set_id option on
1378 authenticators.
1379
c8e2fc1e
JH
1380JH/12 Add optional authenticated_sender logging to A= and a log_selector
1381 for control.
1382
005ac57f
PP
1383PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1384
3f1df0e3
PP
1385PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1386 advertise SMTP AUTH mechanism to us, instead of a generic
1387 protocol violation error. Also, make Exim more robust to bad
1388 data from the Dovecot auth socket.
1389
67bd1ab3
TF
1390TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1391
1392 When a queue runner is handling a message, Exim first routes the
1393 recipient addresses, during which it prunes them based on the retry
1394 hints database. After that it attempts to deliver the message to
1395 any remaining recipients. It then updates the hints database using
1396 the retry rules.
1397
1398 So if a recipient address works intermittently, it can get repeatedly
1399 deferred at routing time. The retry hints record remains fresh so the
1400 address never reaches the final cutoff time.
1401
1402 This is a fairly common occurrence when a user is bumping up against
1403 their storage quota. Exim had some logic in its local delivery code
1404 to deal with this. However it did not apply to per-recipient defers
1405 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1406
1ddeb334
TF
1407 This change adds a proper retry rule check during routing so that the
1408 final cutoff time is checked against the message's age. We only do
1409 this check if there is an address retry record and there is not a
1410 domain retry record; this implies that previous attempts to handle
1411 the address had the retry_use_local_parts option turned on. We use
1412 this as an approximation for the destination being like a local
1413 delivery, as in LMTP.
67bd1ab3
TF
1414
1415 I suspect this new check makes the old local delivery cutoff check
1416 redundant, but I have not verified this so I left the code in place.
1417
326cdc37
TF
1418TF/02 Correct gecos expansion when From: is a prefix of the username.
1419
1420 Test 0254 submits a message to Exim with the header
1421
1422 Resent-From: f
1423
1424 When I ran the test suite under the user fanf2, Exim expanded
1425 the header to contain my full name, whereas it should have added
1426 a Resent-Sender: header. It erroneously treats any prefix of the
1427 username as equal to the username.
1428
1429 This change corrects that bug.
1430
f62514b3
GF
1431GF/01 DCC debug and logging tidyup
1432 Error conditions log to paniclog rather than rejectlog.
1433 Debug lines prefixed by "DCC: " to remove any ambiguity.
1434
eb505532
TF
1435TF/03 Avoid unnecessary rebuilds of lookup-related code.
1436
14c7b357
PP
1437PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1438 Bug spotted by Jeremy Harris; was flawed since initial commit.
1439 Would have resulted in OCSP responses post-SNI triggering an Exim
1440 NULL dereference and crash.
1441
94eaf700
PP
1442JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1443
6f5a440a
PP
1444PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1445 Bug detection, analysis and fix by Samuel Thibault.
1446 Bugzilla 1331, Debian bug #698092.
1447
514ee161
SC
1448SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1449
fd98a5c6
JH
1450JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1451 Server implementation by Todd Lyons, client by JH.
1452 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1453 config variable "prdr_enable" controls whether the server
1454 advertises the facility. If the client requests PRDR a new
1455 acl_data_smtp_prdr ACL is called once for each recipient, after
1456 the body content is received and before the acl_smtp_data ACL.
4c04137d 1457 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1458 on the smtp transport, and the server advertisement.
1459 Default client logging of deliveries and rejections involving
1460 PRDR are flagged with the string "PRDR".
1461
035c7f1e
PP
1462PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1463 fclose(). Diagnosis by Todd Lyons.
1464
ff284120
PP
1465PP/17 Update configure.default to handle IPv6 localhost better.
1466 Patch by Alain Williams (plus minor tweaks).
1467 Bugzilla 880.
1468
26e72755
PP
1469PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1470 This is now consistent with GnuTLS, and is now documented: the
1471 previous undocumented portable approach to treating the option as
1472 unset was to force an expansion failure. That still works, and
1473 an empty string is now equivalent.
1474
0fbd9bff
PP
1475PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1476 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1477 not performing validation itself.
1478
700d22f3
PP
1479PP/20 Added force_command boolean option to pipe transport.
1480 Patch from Nick Koston, of cPanel Inc.
1481
fcc8e047
JH
1482JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1483 Bugzilla 321, 823.
1484
4c04137d 1485TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1486
8c020188
PP
1487PP/21 Fix eximon continuous updating with timestamped log-files.
1488 Broken in a format-string cleanup in 4.80, missed when I repaired the
1489 other false fix of the same issue.
1490 Report and fix from Heiko Schlichting.
1491 Bugzilla 1363.
1492
d13cdd30
PP
1493PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1494 Report from Prashanth Katuri.
1495
e2fbf4a2
PP
1496PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1497 It's SecureTransport, so affects any MacOS clients which use the
1498 system-integrated TLS libraries, including email clients.
1499
f4c1088b
PP
1500PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1501 using a MIME ACL for non-SMTP local injection.
1502 Report and assistance in diagnosis by Warren Baker.
1503
c5c2182f
PP
1504TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1505
73431ca9
JH
1506JH/16 Fix comparisons for 64b. Bugzilla 1385.
1507
2d07a215
TL
1508TL/09 Add expansion variable $authenticated_fail_id to keep track of
1509 last id that failed so it may be referenced in subsequent ACL's.
1510
a30a8861
TL
1511TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1512 Alexander Miroch.
1513
33382dd9
TL
1514TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1515 ldap library initialization, allowing self-signed CA's to be
1516 used. Also properly sets require_cert option later in code by
1517 using NULL (global ldap config) instead of ldap handle (per
1518 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1519
046172e6
TL
1520TL/12 Enhanced documentation in the ratelimit.pl script provided in
1521 the src/util/ subdirectory.
1522
581d7bee 1523TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1524 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1525 EXPERIMENTAL_TPDA.
1526
1527TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1528 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1529 redis_servers = needs to be configured which will be used by the redis
1530 lookup. Patch from Warren Baker, of The Packet Hub.
1531
237b2cf2
TL
1532TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1533
9fc5a352
TL
1534TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1535 hostname or reverse DNS when processing a host list. Used suggestions
1536 from multiple comments on this bug.
1a7b746d 1537
b10e4ec2
TL
1538TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1539
e2cebd74
TL
1540TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1541 Missed a few lines, added it to make the runtest require no keyboard
1542 interaction.
1543
1544TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1545 contains upper case chars. Make router use caseful_local_part.
1546
2519e60d
TL
1547TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1548 support when GnuTLS has been built with p11-kit.
1549
e78e6ecf 1550
4263f395
PP
1551Exim version 4.80.1
1552-------------------
1553
1554PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1555 CVE-2012-5671
2c422e6f 1556 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1557
ea722490 1558
b1770b6e 1559Exim version 4.80
0599f9cf
PP
1560-----------------
1561
1562PP/01 Handle short writes when writing local log-files.
1563 In practice, only affects FreeBSD (8 onwards).
1564 Bugzilla 1053, with thanks to Dmitry Isaikin.
1565
23c7e742
NM
1566NM/01 Bugzilla 949 - Documentation tweak
1567
b322aac8
NM
1568NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1569 improved.
1570
4a891427
NM
1571NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1572
c1e794ba 1573PP/02 Implemented gsasl authenticator.
b322aac8 1574
97753960
PP
1575PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1576
1577PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1578 `pkg-config foo` for cflags/libs.
1579
df6303fa
PP
1580PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1581 with rest of GSASL and with heimdal_gssapi.
1582
7e6a8985
PP
1583PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1584 `pkg-config foo` for cflags/libs for the TLS implementation.
1585
f1e05cc7 1586PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1587 properties get this fed in as external SSF. A number of robustness
1588 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1589
4c287009
PP
1590PP/08 cyrus_sasl server now expands the server_realm option.
1591
b98bb9ac
PP
1592PP/09 Bugzilla 1214 - Log authentication information in reject log.
1593 Patch by Jeremy Harris.
1594
4a6a987a
PP
1595PP/10 Added dbmjz lookup type.
1596
c45dd180 1597PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1598
7db8d074
PP
1599PP/12 MAIL args handles TAB as well as SP, for better interop with
1600 non-compliant senders.
1601 Analysis and variant patch by Todd Lyons.
1602
eae0036b 1603NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1604 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1605 Patch from Dirk Mueller <dmueller@suse.com>
1606
dec5017e
PP
1607PP/13 tls_peerdn now print-escaped for spool files.
1608 Observed some $tls_peerdn in wild which contained \n, which resulted
1609 in spool file corruption.
1610
c80c5570
PP
1611PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1612 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1613 or write after TLS renegotiation, which otherwise led to messages
1614 "Got SSL error 2".
1615
076b11e2
PP
1616TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1617 as a tracking header (ie: a signed header comes before the signature).
1618 Patch from Wolfgang Breyha.
1619
5407bfff
JH
1620JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1621 comma-sep list; embedded commas doubled.
1622
9e45c72b
PP
1623JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1624
e74376d8
PP
1625PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1626 diagnostics.
1627 Report and patch from Dmitry Banschikov.
1628
4c04137d 1629PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1630 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1631 failures. We appear to now support TLS1.1+ with Exim.
1632
7be682ca
PP
1633PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1634 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1635 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1636 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1637
ef840681
PP
1638PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1639 NULL dereference. Report and patch from Alun Jones.
1640
5bfb4cdf
PP
1641PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1642 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1643 Not seeing resolver debug output on NetBSD, but suspect this is a
1644 resolver implementation change.
1645
c6e95d22
PP
1646PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1647 Left warnings. Added "eximon gdb" invocation mode.
1648
9cbad13b
PP
1649PP/21 Defaulting "accept_8bitmime" to true, not false.
1650
9ee44efb
PP
1651PP/22 Added -bw for inetd wait mode support.
1652
6a6084f8
PP
1653PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1654 locate the relevant includes and libraries. Made this the default.
1655
12dd53c7
PP
1656PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1657 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1658
9e45c72b 1659JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1660 This may cause build issues on older platforms.
1661
17c76198
PP
1662PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1663 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1664 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1665 Added SNI support via GnuTLS too.
af3498d6 1666 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1667
53947857 1668PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1669
eae0036b 1670PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1671 Applied second patch from Janne, implementing suggestion to default
1672 multiple-strings-in-record handling to match SPF spec.
eae0036b 1673
9e45c72b 1674JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1675
7390e768
PP
1676PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1677 read-only, out of scope).
1678 Patch from Wolfgang Breyha, report from Stuart Northfield.
1679
08488c86
PP
1680PP/29 Fix three issues highlighted by clang analyser static analysis.
1681 Only crash-plausible issue would require the Cambridge-specific
1682 iplookup router and a misconfiguration.
1683 Report from Marcin Mirosław.
1684
6475bd82
PP
1685PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1686
81f91683
PP
1687PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1688 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1689 As part of this, removing so much warning spew let me fix some minor
1690 real issues in debug logging.
1691
5779e6aa
PP
1692PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1693 assignment on my part. Fixed.
1694
3375e053
PP
1695PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1696 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1697 Janne Snabb (who went above and beyond: thank you).
1698
1699PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1700 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1701 relatively easy to get wrong. Should also expose TLS library linkage
1702 problems.
3375e053 1703
9d26b8c0
PP
1704PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1705 64-bit ${eval} (JH/03).
1706
57eb9e91 1707PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1708 GNU libc to support some of the 64-bit stuff, should not lead to
1709 conflicts. Defined before os.h is pulled in, so if a given platform
1710 needs to override this, it can.
1711
16880d1a
PP
1712PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1713 protection layer was required, which is not implemented.
1714 Bugzilla 1254, patch from Wolfgang Breyha.
1715
a799883d
PP
1716PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1717 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1718 tls_dhparam take prime identifiers. Also unbreak combination of
1719 OpenSSL+DH_params+TLSSNI.
1720
3ecab157 1721PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1722
0599f9cf 1723
867fcbf5
PP
1724Exim version 4.77
1725-----------------
1726
1727PP/01 Solaris build fix for Oracle's LDAP libraries.
1728 Bugzilla 1109, patch from Stephen Usher.
1729
f1a29782
TF
1730TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1731
ab42bd23
TK
1732TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1733 whitespace trailer
867fcbf5 1734
0ca0cf52
TF
1735TF/02 Fix a couple more cases where we did not log the error message
1736 when unlink() failed. See also change 4.74-TF/03.
1737
921b12ca
TF
1738TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1739 lock up or crash if it happened to be inside a call to libc when it
1740 got a SIGUSR1 from exiwhat.
1741
1742 The SIGUSR1 handler appends the current process status to the process
1743 log which is later printed by exiwhat. It used to use the general
1744 purpose logging code to do this, but several functions it calls are
1745 not safe for signals.
1746
1747 The new output code in the SIGUSR1 handler is specific to the process
1748 log, and simple enough that it's easy to inspect for signal safety.
1749 Removing some special cases also simplifies the general logging code.
1750 Removing the spurious timestamps from the process log simplifies
1751 exiwhat.
1752
c99ce5c9
TF
1753TF/04 Improved ratelimit ACL condition.
1754
1755 The /noupdate option has been deprecated in favour of /readonly which
1756 has clearer semantics. The /leaky, /strict, and /readonly update modes
1757 are mutually exclusive. The update mode is no longer included in the
1758 database key; it just determines when the database is updated. (This
4c04137d 1759 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1760
1761 Exim now checks that the per_* options are used with an update mode that
1762 makes sense for the current ACL. For example, when Exim is processing a
1763 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1764 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1765 must specify per_mail/readonly. If you omit the update mode it defaults to
1766 /leaky where that makes sense (as before) or /readonly where required.
1767
1768 The /noupdate option is now undocumented but still supported for
1769 backwards compatibility. It is equivalent to /readonly except that in
1770 ACLs where /readonly is required you may specify /leaky/noupdate or
1771 /strict/noupdate which are treated the same as /readonly.
1772
1773 A useful new feature is the /count= option. This is a generalization
1774 of the per_byte option, so that you can measure the throughput of other
1775 aggregate values. For example, the per_byte option is now equivalent
1776 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1777
1778 The per_rcpt option has been generalized using the /count= mechanism
1779 (though it's more complicated than the per_byte equivalence). When it is
1780 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1781 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1782 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1783 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1784 Note that using per_rcpt with a non-readonly update mode in more than
1785 one ACL will cause the recipients to be double-counted. (The per_mail
1786 and per_byte options don't have this problem.)
1787
1788 The handling of very low rates has changed slightly. If the computed rate
1789 is less than the event's count (usually one) then this event is the first
1790 after a long gap. In this case the rate is set to the same as this event's
1791 count, so that the first message of a spam run is counted properly.
1792
1793 The major new feature is a mechanism for counting the rate of unique
1794 events. The new per_addr option counts the number of different
1795 recipients that someone has sent messages to in the last time period. It
1796 behaves like per_rcpt if all the recipient addresses are different, but
1797 duplicate recipient addresses do not increase the measured rate. Like
1798 the /count= option this is a general mechanism, so the per_addr option
1799 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1800 example, measure the rate that a client uses different sender addresses
1801 with the options per_mail/unique=$sender_address. There are further
1802 details in the main documentation.
1803
3634fc25
TF
1804TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1805
792e8a19
TF
1806TF/06 Removed a few PCRE remnants.
1807
5901f0ab
TF
1808TF/07 Automatically extract Exim's version number from tags in the git
1809 repository when doing development or release builds.
1810
7f2a2a43
PP
1811PP/02 Raise smtp_cmd_buffer_size to 16kB.
1812 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1813
061b7ebd
PP
1814PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1815 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1816 Bugzilla 97.
1817
e12f8c32
PP
1818PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1819
9e949f00 1820PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1821 Bugzilla 1078. Patch from John Horne.
1822
1823PP/06 Stop make process more reliably on build failure.
1824 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1825
555ae6af 1826PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1827 Bugzilla 1089. Patch from Heiko Schlittermann.
1828
1829PP/08 Handle ${run} returning more data than OS pipe buffer size.
1830 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1831
6f7fe114
PP
1832PP/09 Handle IPv6 addresses with SPF.
1833 Bugzilla 860. Patch from Wolfgang Breyha.
1834
c566dd90
PP
1835PP/10 GnuTLS: support TLS 1.2 & 1.1.
1836 Bugzilla 1156.
89f897c3
PP
1837 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1838 Bugzilla 1095.
c566dd90 1839
d6cc7c78 1840PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1841 New compile-time build option, EXPAND_LISTMATCH_RHS.
1842 New expansion conditions, "inlist", "inlisti".
1843
0d0e4455
PP
1844PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1845
3399bb60 1846PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1847
1848PP/14 fix log_write() format string regression from TF/03.
1849 Bugzilla 1152. Patch from Dmitry Isaikin.
1850
0ca0cf52 1851
10906672
PP
1852Exim version 4.76
1853-----------------
1854
1855PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1856
754a0503
PP
1857PP/02 Harmonised TLS library version reporting; only show if debugging.
1858 Layout now matches that introduced for other libraries in 4.74 PP/03.
1859
c0c7b2da
PP
1860PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1861
e97d1f08
PP
1862PP/04 New "dns_use_edns0" global option.
1863
084c1d8c
PP
1864PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1865 Bugzilla 1098.
1866
4e7ee012
PP
1867PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1868 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1869
c8d52a00
PP
1870TK/01 Updated PolarSSL code to 0.14.2.
1871 Bugzilla 1097. Patch from Andreas Metzler.
1872
54e7ce4a
PP
1873PP/07 Catch divide-by-zero in ${eval:...}.
1874 Fixes bugzilla 1102.
1875
5ee6f336
PP
1876PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1877 Bugzilla 1104.
1878
c8d52a00 1879TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1880 format-string attack -- SECURITY: remote arbitrary code execution.
1881
1882TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1883 time unintentionally subject to list matching rules, letting the header
1884 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1885 arbitrary string expansion). This allowed for information disclosure.
1886
1887PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1888 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1889
10906672 1890
aa097c4c
NM
1891Exim version 4.75
1892-----------------
1893
4c04137d 1894NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1895 Bugzilla 1073
1896
7f3d9eff
TF
1897TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1898 This fixes portability to compilers other than gcc, notably
1899 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1900
159f52d2
TF
1901TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1902 makefiles for portability to HP-UX and POSIX correctness.
1903
0cc9542a
PP
1904PP/01 Permit LOOKUP_foo enabling on the make command-line.
1905 Also via indented variable definition in the Makefile.
1906 (Debugging by Oliver Heesakkers).
1907
f7274286
PP
1908PP/02 Restore caching of spamd results with expanded spamd_address.
1909 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1910
7b797365
PP
1911PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1912 Improves build reliability. Fix from: Frank Elsner
1913
caacae52
NM
1914NM/02 Fix wide character breakage in the rfc2047 coding
1915 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1916
09dcaba9
NM
1917NM/03 Allow underscore in dnslist lookups
1918 Fixes bug 1026. Patch from Graeme Fowler
1919
bc19a55b
PP
1920PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1921 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1922
bd4c9759
NM
1923NM/04 Fixed exiqgrep to cope with mailq missing size issue
1924 Fixes bug 943.
1925
b72aab72
PP
1926PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1927 is logged, to avoid truncation. Patch from John Horne.
1928
2fe76745
PP
1929PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1930 Patch from Jakob Hirsch.
1931
76aa570c
PP
1932PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1933 SQL string expansion failure details.
1934 Patch from Andrey Oktyabrski.
1935
f1e5fef5
PP
1936PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1937 Patch from Simon Arlott.
1938
4d805ee9
PP
1939PP/09 New lookups functionality failed to compile on old gcc which rejects
1940 extern declarations in function scope.
1941 Patch from Oliver Fleischmann
1942
cd59ab18
PP
1943PP/10 Use sig_atomic_t for flags set from signal handlers.
1944 Check getgroups() return and improve debugging.
1945 Fixed developed for diagnosis in bug 927 (which turned out to be
1946 a kernel bug).
1947
332f5cf3
PP
1948PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1949 Patch from Mark Zealey.
1950
29cfeb94
PP
1951PP/12 Bugzilla 1056: Improved spamd server selection.
1952 Patch from Mark Zealey.
1953
660242ad
PP
1954PP/13 Bugzilla 1086: Deal with maildir quota file races.
1955 Based on patch from Heiko Schlittermann.
1956
bc4bc4c5
PP
1957PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1958 Patch from Uwe Doering, sign-off by Michael Haardt.
1959
2e64baa9
NM
1960NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1961 variable declaration deep within a block. Bug and patch from
1962 Dennis Davis.
1963
4c04137d 1964PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1965
6bac1a9a
PP
1966PP/16 Make DISABLE_DKIM build knob functional.
1967
552193f0
NM
1968NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1969 Patch by Simon Arlott
baeee2c1 1970
1b587e48
TF
1971TF/03 Fix valgrind.h portability to C89 compilers that do not support
1972 variable argument macros. Our copy now differs from upstream.
1973
aa097c4c 1974
8c07b69f
TF
1975Exim version 4.74
1976-----------------
1977
1978TF/01 Failure to get a lock on a hints database can have serious
1979 consequences so log it to the panic log.
1980
c0ea85ab
TF
1981TF/02 Log LMTP confirmation messages in the same way as SMTP,
1982 controlled using the smtp_confirmation log selector.
1983
0761d44e
TF
1984TF/03 Include the error message when we fail to unlink a spool file.
1985
0a349494
PP
1986DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1987 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1988 for maintaining out-of-tree patches for some time.
1989
1990PP/01 Bugzilla 139: Documentation and portability issues.
1991 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1992 Handle per-OS dynamic-module compilation flags.
1993
fea24b2e
PP
1994PP/02 Let /dev/null have normal permissions.
1995 The 4.73 fixes were a little too stringent and complained about the
1996 permissions on /dev/null. Exempt it from some checks.
1997 Reported by Andreas M. Kirchwitz.
1998
6545de78
PP
1999PP/03 Report version information for many libraries, including
2000 Exim version information for dynamically loaded libraries. Created
2001 version.h, now support a version extension string for distributors
2002 who patch heavily. Dynamic module ABI change.
2003
1670ef10
PP
2004PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2005 privilege escalation vulnerability whereby the Exim run-time user
2006 can cause root to append content of the attacker's choosing to
2007 arbitrary files.
2008
c0886197
PP
2009PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2010 (Wolfgang Breyha)
2011
b7487bce
PP
2012PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2013 If dropping privileges for untrusted macros, we disabled normal logging
2014 on the basis that it would fail; for the Exim run-time user, this is not
2015 the case, and it resulted in successful deliveries going unlogged.
2016 Fixed. Reported by Andreas Metzler.
2017
8c07b69f 2018
97fd1e48 2019Exim version 4.73
ed7f7860 2020-----------------
97fd1e48
PP
2021
2022PP/01 Date: & Message-Id: revert to normally being appended to a message,
2023 only prepend for the Resent-* case. Fixes regression introduced in
2024 Exim 4.70 by NM/22 for Bugzilla 607.
2025
6901c596
PP
2026PP/02 Include check_rfc2047_length in configure.default because we're seeing
2027 increasing numbers of administrators be bitten by this.
2028
a8c8d6b5
JJ
2029JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2030
77bb000f
PP
2031PP/03 Bugzilla 994: added openssl_options main configuration option.
2032
a29e5231
PP
2033PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2034
ec5a0394 2035PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2036
55c75993
PP
2037PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2038
453a6645 2039PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2040 without a peer certificate, leading to a segfault because of an
2041 assumption that peers always have certificates. Be a little more
453a6645
PP
2042 paranoid. Problem reported by Martin Tscholak.
2043
8544e77a
PP
2044PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2045 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2046 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2047 CL also introduces -bmalware, various -d+acl logging additions and
2048 more caution in buffer sizes.
8544e77a 2049
83e029d5
PP
2050PP/09 Implemented reverse_ip expansion operator.
2051
ed7f7860
PP
2052PP/10 Bugzilla 937: provide a "debug" ACL control.
2053
7d9f747b
PP
2054PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2055
4b2241d2
PP
2056PP/12 Bugzilla 973: Implement --version.
2057
10385c15
PP
2058PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2059
dbc4b90d
PP
2060PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2061
532be449
PP
2062PP/15 Bugzilla 816: support multiple condition rules on Routers.
2063
6a8de854 2064PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2065 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2066 ignore trailing whitespace.
6a8de854 2067
5dc43717
JJ
2068JJ/02 prevent non-panic DKIM error from being sent to paniclog
2069
2070JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2071 "exim" to be used
55c75993 2072
3346ab01
PP
2073PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2074 Notification from Dr Andrew Aitchison.
2075
491fab4c
PP
2076PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2077 ExtendedDetectionInfo response format.
2078 Notification from John Horne.
2079
13eb9497
PP
2080PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2081 compatible.
2082
2083PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2084 XSL and documented dependency on system catalogs, with examples of how
2085 it normally works.
2086
7f36d675
DW
2087DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2088 access.
2089
c1d94452
DW
2090DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2091 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2092 configuration file which is writeable by the Exim user or group.
2093
e2f5dc15
DW
2094DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2095 of configuration files to cover files specified with the -C option if
2096 they are going to be used with root privileges, not just the default
2097 configuration file.
2098
cd25e41d
DW
2099DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2100 option (effectively making it always true).
2101
261dc43e
DW
2102DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2103 files to be used while preserving root privileges.
2104
fa32850b
DW
2105DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2106 that rogue child processes cannot use them.
2107
79d4bc3d
PP
2108PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2109 run-time user, instead of root.
2110
43236f35 2111PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2112 Exim run-time user without dropping privileges.
2113
fb08281f
DW
2114DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2115 result string, instead of calling string_vformat() twice with the same
2116 arguments.
3346ab01 2117
74935b98
DW
2118DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2119 for other users. Others should always drop root privileges if they use
2120 -C on the command line, even for a whitelisted configure file.
2121
90b6341f
DW
2122DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2123
57730b52
ML
2124NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2125
66581d1e 2126
465e92cf
JJ
2127Exim version 4.72
2128-----------------
2129
453a6645
PP
2130JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2131 $data_path, and $header_path variables; fixed documentation bugs and
2132 typos
465e92cf 2133
453a6645
PP
2134JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2135 exipick to access non-standard spools, including the "frozen" queue
2136 (Finput)
edae0343 2137
9bd3e22c
NM
2138NM/01 Bugzilla 965: Support mysql stored procedures.
2139 Patch from Alain Williams
2140
bb576ff7
NM
2141NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2142
5a1a5845
NM
2143NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2144 Patch from Andreas Metzler
2145
981a9fad
NM
2146NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2147 Patch from Kirill Miazine
2148
7fc497ee
NM
2149NM/05 Bugzilla 671: Added umask to procmail example.
2150
1a41defa
JJ
2151JJ/03 installed exipick 20100323.0, fixing doc bug
2152
a466095c 2153NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2154 directory. Notification and patch from Dan Rosenberg.
a466095c 2155
94a6bd0b
NM
2156TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2157
2158TK/02 Improve log output when DKIM signing operation fails.
2159
2160MH/01 Treat the transport option dkim_domain as a colon separated
2161 list, not as a single string, and sign the message with each element,
2162 omitting multiple occurences of the same signer.
2163
c1b141a8
NM
2164NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2165 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2166
b26eacf1 2167NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2168 Patch by Simon Arlott
2169
179c5980 2170PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2171 MBX locking. Notification from Dan Rosenberg.
179c5980 2172
9bd3e22c 2173
7c6d71af
NM
2174Exim version 4.71
2175-----------------
2176
7d9f747b 2177TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2178
f013fb92
NM
2179NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2180
0eb8eedd
NM
2181NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2182
663ee6d9
NM
2183NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2184
177ebd9b
NM
2185NM/04 Bugzilla 915: Flag broken perl installation during build.
2186
7c6d71af 2187
210f147e
NM
2188Exim version 4.70
2189-----------------
2190
cdd3bb85 2191TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2192 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2193
2194TK/02 Write list of recipients to X-Envelope-Sender header when building
2195 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2196 Hirsch).
cdd3bb85
TK
2197
2198TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2199 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2200 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2201
2202TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2203 by Mark Daniel Reidel <mr@df.eu>.
2204
210f147e
NM
2205NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2206 When building exim an external PCRE library is now needed -
2207 PCRE is a system library on the majority of modern systems.
2208 See entry on PCRE_LIBS in EDITME file.
2209
deafd5b3
NM
2210NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2211 conversation. Added nologin parameter to request.
7d9f747b 2212 Patch contributed by Kirill Miazine.
deafd5b3 2213
089793a4
TF
2214TF/01 Do not log submission mode rewrites if they do not change the address.
2215
5f16ca82
TF
2216TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2217
dae9d94e 2218NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2219 log files in place. Contributed by Roberto Lima.
dae9d94e 2220
7d9f747b 2221NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2222
06864c44
TF
2223TF/03 Bugzilla 615: When checking the local_parts router precondition
2224 after a local_part_suffix or local_part_prefix option, Exim now
2225 does not use the address's named list lookup cache, since this
2226 contains cached lookups for the whole local part.
2227
65a7d8c3 2228NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2229 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2230
23510047 2231TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2232
7d9f747b 2233NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2234
7d8eec3a 2235NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2236 Patch provided by Jan Srzednicki.
6c588e74 2237
89dec7b6
TF
2238TF/05 Leading white space used to be stripped from $spam_report which
2239 wrecked the formatting. Now it is preserved.
5f28a6e8 2240
a99de90c
TF
2241TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2242 that they are available at delivery time.
2243
e2803e40
TF
2244TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2245
7199e1ee
TF
2246TF/08 TLS error reporting now respects the incoming_interface and
2247 incoming_port log selectors.
2248
e276e04b
TF
2249TF/09 Produce a more useful error message if an SMTP transport's hosts
2250 setting expands to an empty string.
2251
ce552449 2252NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2253 Patch provided by Phil Pennock.
ce552449 2254
e765a0f1 2255NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2256 Patch provided by Richard Godbee.
e765a0f1 2257
4f054c63 2258NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2259 acl_smtp_notquit, added index entry.
4f054c63 2260
7d9f747b
PP
2261NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2262 Patch provided by Eugene Bujak.
24c929a2 2263
7d9f747b
PP
2264NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2265 accept(). Patch provided by Maxim Dounin.
cf73943b 2266
b52bc06e 2267NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2268 Patch provided by Phil Pennock.
b52bc06e 2269
447de4b0
NM
2270NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2271
4c69d561 2272NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2273 Patch provided by Brad "anomie" Jorsch.
4c69d561 2274
d5c39246 2275NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2276 Patch provided by Dean Brooks.
9b989985 2277
0b23848a
TK
2278TK/05 Add native DKIM support (does not depend on external libraries).
2279
8f3414a1 2280NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2281 Patch provided by Graeme Fowler.
e2aacdfd 2282
fb6f955d
NM
2283NM/16 Bugzilla 851: Documentation example syntax fix.
2284
2285NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2286
7d9f747b
PP
2287NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2288 lsearch.
dbb0bf41 2289
7d9f747b
PP
2290NM/19 Bugzilla 745: TLS version reporting.
2291 Patch provided by Phil Pennock.
f3766eb5 2292
7d9f747b
PP
2293NM/20 Bugzilla 167: bool: condition support.
2294 Patch provided by Phil Pennock.
36f12725 2295
7d9f747b
PP
2296NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2297 clients. Patch provided by Phil Pennock.
e6060e2c 2298
7d9f747b
PP
2299NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2300 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2301
7d9f747b
PP
2302NM/23 Bugzilla 687: Fix misparses in eximstats.
2303 Patch provided by Heiko Schlittermann.
d5c13d66 2304
7d9f747b
PP
2305NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2306 Patch provided by Heiko Schlittermann.
b2335c0b 2307
7d9f747b 2308NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2309 plus update to original patch.
f4cd9433 2310
7d9f747b 2311NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2312
7d9f747b
PP
2313NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2314 Patch provided by David Brownlee.
8dc71ab3 2315
7d9f747b 2316NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2317
7d9f747b 2318NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2319
7d9f747b 2320NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2321
7d9f747b 2322NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2323
17792b53 2324NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2325 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2326
7d9f747b
PP
2327NM/33 Bugzilla 898: Transport filter timeout fix.
2328 Patch by Todd Rinaldo.
52383f8f 2329
91576cec 2330NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2331 Patch by Serge Demonchaux.
5ca6d115 2332
7d9f747b
PP
2333NM/35 Bugzilla 39: Base64 decode bug fixes.
2334 Patch by Jakob Hirsch.
baee9eee 2335
7d9f747b 2336NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2337
7d9f747b 2338NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2339
7d9f747b 2340NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2341
7d9f747b 2342NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2343
deafd5b3 2344
47db1125
NM
2345Exim version 4.69
2346-----------------
2347
4b3504d0
TK
2348TK/01 Add preliminary DKIM support. Currently requires a forked version of
2349 ALT-N's libdkim that I have put here:
2350 http://duncanthrax.net/exim-experimental/
2351
2352 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2353 were called 'true' and it seems that C99 defines that as a reserved
2354 keyword to be used with 'bool' variable types. That means you could
2355 not include C99-style headers which use bools without triggering
2356 build errors in sieve.c.
2357
81ea09ca
NM
2358NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2359 as mailq or other aliases. Changed the --help handling significantly
2360 to do whats expected. exim_usage() emits usage/help information.
2361
f13cddcb
SC
2362SC/01 Added the -bylocaldomain option to eximstats.
2363
7d9f747b 2364NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2365
7d9f747b 2366NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2367
7d9f747b 2368NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2369
2370
eb4c0de6
PH
2371Exim version 4.68
2372-----------------
2373
2374PH/01 Another patch from the Sieve maintainer.
2375
6a3bceb1
PH
2376PH/02 When an IPv6 address is converted to a string for single-key lookup
2377 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2378 dots are used instead of colons so that keys in lsearch files need not
2379 contain colons. This was done some time before quoting was made available
2380 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2381 (notated using the quote facility) so as to distinguish them from IPv4
2382 keys. This meant that lookups for IP addresses in host lists did not work
2383 for iplsearch lookups.
2384
2385 This has been fixed by arranging for IPv6 addresses to be expressed with
2386 colons if the lookup type is iplsearch. This is not incompatible, because
2387 previously such lookups could never work.
2388
4c04137d 2389 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2390 ordinary lsearch keys. However, making the change in all cases is
2391 incompatible and would probably break a number of configurations.
2392
2e30fa9d
TK
2393TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2394 version.
2395
0806a9c5
MH
2396MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2397 conversion specification without a maximum field width, thereby enabling
2398 a rogue spamd server to cause a buffer overflow. While nobody in their
2399 right mind would setup Exim to query an untrusted spamd server, an
2400 attacker that gains access to a server running spamd could potentially
2401 exploit this vulnerability to run arbitrary code as the Exim user.
2402
ae276964
TK
2403TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2404 $primary_hostname instead of what libspf2 thinks the hosts name is.
2405
0f2cbd1b
MH
2406MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2407 a directory entry by the name of the lookup key. Previously, if a
2408 symlink pointed to a non-existing file or a file in a directory that
2409 Exim lacked permissions to read, a lookup for a key matching that
2410 symlink would fail. Now it is enough that a matching directory entry
2411 exists, symlink or not. (Bugzilla 503.)
2412
2b85bce7
PH
2413PH/03 The body_linecount and body_zerocount variables are now exported in the
2414 local_scan API.
2415
93655c46
PH
2416PH/04 Added the $dnslist_matched variable.
2417
6c512171
PH
2418PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2419 This means they are set thereafter only if the connection becomes
2420 encrypted.
2421
2422PH/06 Added the client_condition to authenticators so that some can be skipped
2423 by clients under certain conditions.
2424
aa6dc513
PH
2425PH/07 The error message for a badly-placed control=no_multiline_responses left
2426 "_responses" off the end of the name.
2427
a96603a0
PH
2428PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2429
8f240103
PH
2430PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2431 (without spaces) instead of just copying the configuration text.
2432
2433PH/10 Added the /noupdate option to the ratelimit ACL condition.
2434
d677b2f2
PH
2435PH/11 Added $max_received_linelength.
2436
d52120f2
PH
2437PH/12 Added +ignore_defer and +include_defer to host lists.
2438
64f2600a
PH
2439PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2440 way in which PCRE > 7.0 is built.
2441
8669f003
PH
2442PH/14 Implemented queue_only_load_latch.
2443
a4dc33a8
PH
2444PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2445 MAIL command. The effect was to mangle the value on 64-bit systems.
2446
d6a60c0f
PH
2447PH/16 Another patch from the Sieve maintainer.
2448
8f128379
PH
2449PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2450
8932dffe
PH
2451PH/18 If a system quota error occurred while trying to create the file for
2452 a maildir delivery, the message "Mailbox is full" was not appended to the
2453 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2454 only to a quota excession during the actual writing of the file.
d6a60c0f 2455
ddea74fa 2456PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2457 characters?) which causes problems in log lines. The DN values are now
2458 passed through string_printing() before being added to log lines.
2459
ddea74fa 2460PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2461 and InterBase are left for another time.)
2462
ddea74fa
PH
2463PH/21 Added message_body_newlines option.
2464
ce9f225c
PH
2465PH/22 Guard against possible overflow in moan_check_errorcopy().
2466
19897d52
PH
2467PH/23 POSIX allows open() to be a macro; guard against that.
2468
bc64a74d
PH
2469PH/24 If the recipient of an error message contained an @ in the local part
2470 (suitably quoted, of course), incorrect values were put in $domain and
2471 $local_part during the evaluation of errors_copy.
2472
eb4c0de6 2473
b4ed4da0
PH
2474Exim version 4.67
2475-----------------
2476
22ad45c9
MH
2477MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2478 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2479 Jan Srzednicki.
2480
b4ed4da0
PH
2481PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2482 issue a MAIL command.
2483
431b7361
PH
2484PH/02 In an ACL statement such as
2485
2486 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2487
2488 if a client was not listed at all, or was listed with a value other than
2489 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2490 the condition was not true (as it should be), so access was not denied.
2491 The bug was that the ! inversion was incorrectly passed on to the second
2492 item. This has been fixed.
2493
2494PH/03 Added additional dnslists conditions == and =& which are different from
2495 = and & when the dns lookup returns more than one IP address.
2496
83da1223
PH
2497PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2498 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2499
54fc8428
PH
2500PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2501 FSYNC, which compiles an option called disable_fsync that allows for
2502 bypassing fsync(). The documentation is heavily laced with warnings.
2503
34c5e8dd
SC
2504SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2505
bbe15da8
PH
2506PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2507 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2508 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2509 including adding "make clean"; (3) Added -fPIC when compiling the test
2510 dynamically loaded module, to get rid of a warning.
2511
0e8a9471
MH
2512MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2513 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2514 = 0s. The bug is otherwise harmless.
2515
f0872424
PH
2516PH/07 There was a bug in the dovecot authenticator such that the value of
2517 $auth1 could be overwritten, and so not correctly preserved, after a
2518 successful authentication. This usually meant that the value preserved by
2519 the server_setid option was incorrect.
2520
b01dd148
PH
2521PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2522
6bf342e1
PH
2523PH/09 Installed PCRE release 7.0.
2524
273f34d0
PH
2525PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2526 run for batched SMTP input. It is now run at the start of every message
2527 in the batch. While fixing this I discovered that the process information
2528 (output by running exiwhat) was not always getting set for -bs and -bS
2529 input. This is fixed, and it now also says "batched" for BSMTP.
2530
cf8b11a5
PH
2531PH/11 Added control=no_pipelining.
2532
41c7c167
PH
2533PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2534 patch, slightly modified), and move the expansion of helo_data till after
2535 the connection is made in the smtp transport (so it can use these
2536 values).
2537
9c57cbc0
PH
2538PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2539
f3f065bb
PH
2540PH/14 Added log_selector = +pid.
2541
047bdd8c
PH
2542PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2543
0ce9abe6
PH
2544PH/16 Add ${if forany and ${if forall.
2545
0e22dfd1
PH
2546PH/17 Added dsn_from option to vary the From: line in DSNs.
2547
4c590bd1
PH
2548PH/18 Flush SMTP output before performing a callout, unless control =
2549 no_callout_flush is set.
2550
09945f1e
PH
2551PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2552 was true (the default) a successful delivery failed to delete the retry
2553 item, thus causing premature timeout of the address. The bug is now
2554 fixed.
2555
c51b8e75
PH
2556PH/20 Added hosts_avoid_pipelining to the smtp transport.
2557
e28326d8 2558PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2559 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2560 other ACL rejections are.
2561
75b1493f
PH
2562PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2563 with slight modification.
2564
7c5214ec
PH
2565PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2566 draft, changing the syntax and factoring some duplicate code".
2567
4311097e
PH
2568PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2569 for deliveries of the second and subsequent messages over the same SMTP
2570 connection.
2571
29f89cad
PH
2572PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2573 ${reduce, with only minor "tidies".
2574
5e687460
SC
2575SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2576
c3611384
PH
2577PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2578 expansion side effects.
2579
5a11a7b4
PH
2580PH/27 When a message times out after an over-quota error from an Exim-imposed
2581 quota, the bounce message says "mailbox is full". This message was not
2582 being given when it was a system quota that was exceeded. It now should
2583 be the same.
2584
0e20aff9
MH
2585MH/03 Made $recipients available in local_scan(). local_scan() already has
2586 better access to the recipient list through recipients_list[], but
2587 $recipients can be useful in postmaster-provided expansion strings.
2588
ca86f471
PH
2589PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2590 in the case of a MAIL command with additional options following the
2591 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2592 were accidentally chopped off.
2593
a14e5636
PH
2594PH/29 SMTP synchronization checks are implemented when a command is read -
2595 there is a check that no more input is waiting when there shouldn't be
2596 any. However, for some commands, a delay in an ACL can mean that it is
2597 some time before the response is written. In this time, more input might
2598 arrive, invalidly. So now there are extra checks after an ACL has run for
2599 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2600 pipelining has not been advertised.
2601
ec95d1a6
PH
2602PH/30 MH's patch to allow iscntrl() characters to be list separators.
2603
42855d71
PH
2604PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2605 returned in the SMTP response when smtp_return_error_details was false.
2606 This has been fixed.
2607
57c2c631
PH
2608PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2609 instead of the C I/O that was originally supplied, because problems were
2610 reported on Solaris.
2611
58c01c94
PH
2612PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2613 Exim which did not show up earlier: it was assuming that a call to
2614 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2615 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2616 was a macro that became an assignment, so it seemed to work. This has
2617 changed to a proper function call with a void return, hence the compile
2618 error. Exim's code has been fixed.
2619
dee5a20a
PH
2620PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2621 cpus.
2622
d2ee6114
PH
2623PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2624
b2d5182b
PH
2625PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2626
79749a79
PH
2627PH/37 If a message is not accepted after it has had an id assigned (e.g.
2628 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2629 "Completed" line in the log. When some messages of this type were
2630 selected by exigrep, they were listed as "not completed". Others were
2631 picked up by some special patterns. I have improved the selection
2632 criteria to be more general.
79749a79 2633
c456d9bb
PH
2634PH/38 The host_find_failed option in the manualroute router can now be set
2635 to "ignore", to completely ignore a host whose IP address cannot be
2636 found. If all hosts are ignored, the behaviour is controlled by the new
2637 host_all_ignored option.
2638
cd9868ec
PH
2639PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2640 homing or because of multiple MX records with /mx) generated more than
2641 one IP address, and the following item turned out to be the local host,
2642 all the secondary addresses of the first item were incorrectly removed
2643 from the list, along with the local host and any following hosts (which
2644 is what is supposed to happen).
2645
ebeaf996
PH
2646PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2647 whoever called Exim into the -H file. In the case of the daemon it was
2648 behaving confusingly. When first started, it used values for whoever
2649 started the daemon, but after a SIGHUP it used the Exim user (because it
2650 calls itself on a restart). I have changed the code so that it now always
2651 uses the Exim user.
2652
2679d413
PH
2653PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2654 message are rejected with the same error (e.g. no authentication or bad
2655 sender address), and a DATA command is nevertheless sent (as can happen
2656 with PIPELINING or a stupid MUA), the error message that was given to the
2657 RCPT commands is included in the rejection of the DATA command. This is
2658 intended to be helpful for MUAs that show only the final error to their
2659 users.
2660
84024b72
PH
2661PH/42 Another patch from the Sieve maintainer.
2662
8005d38e
SC
2663SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2664 Eximstats - Fixed some broken HTML links and added missing column headers
2665 (Jez Hancock).
2666 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2667 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2668
3298c6c6
SC
2669SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2670
a43a27c5
PH
2671PH/43 Yet another patch from the Sieve maintainer.
2672
58eb016e 2673PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2674 the response to the final '.' that terminates a message, but only in the
2675 case where the client has not sent further data following the '.'
2676 (unfortunately, this is allowed). However, in many cases there won't be
2677 any further data because there won't be any more messages to send. A call
2678 to select() can be used: if it shows that the input is "ready", there is
2679 either input waiting, or the socket has been closed. An attempt to read
2680 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2681 would have sent an OK response which the client would never have see.
563b63fa
PH
2682 This could lead to message repetition. This fix should cure that, at
2683 least in a lot of common cases.
58eb016e 2684
b43a74ea
PH
2685PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2686 advertised in response to EHLO.
2687
b4ed4da0 2688
5dd1517f
PH
2689Exim version 4.66
2690-----------------
2691
2692PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2693 fixed by 4.65/MH/01 (is this a record?) are fixed:
2694
2695 (i) An empty string was always treated as zero by the numeric comparison
2696 operators. This behaviour has been restored.
2697
2698 (ii) It is documented that the numeric comparison operators always treat
2699 their arguments as decimal numbers. This was broken in that numbers
2700 starting with 0 were being interpreted as octal.
2701
2702 While fixing these problems I realized that there was another issue that
2703 hadn't been noticed. Values of message_size_limit (both the global option
2704 and the transport option) were treated as octal if they started with 0.
2705 The documentation was vague. These values are now always treated as
2706 decimal, and I will make that clear in the documentation.
2707
2708
93cfa765
TK
2709Exim version 4.65
2710-----------------
2711
2712TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2713 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2714 versions. (#438)
2715
d6066548
MH
2716MH/01 Don't check that the operands of numeric comparison operators are
2717 integers when their expansion is in "skipping" mode (fixes bug
2718 introduced by 4.64-PH/07).
2719
4362ff0d
PH
2720PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2721 child addresses, Exim now panics and dies. Previously, because the count
2722 is held in a short int, deliveries were likely to be lost. As such a
2723 large number of recipients for a single message is ridiculous
2724 (performance will be very, very poor), I have chosen to impose a limit
2725 rather than extend the field.
2726
93cfa765 2727
944e9e9c
TF
2728Exim version 4.64
2729-----------------
aa41d2de 2730
21d74bd9
TK
2731TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2732 leftover -K file (the existence of which was triggered by #402).
2733 While we were at it, introduced process PID as part of the -K
2734 filename. This should rule out race conditions when creating
2735 these files.
2736
2737TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2738 processing considerably. Previous code took too long for large mails,
2739 triggering a timeout which in turn triggers #401.
2740
2741TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2742 in the DK code in transports.c. sendfile() is not really portable,
2743 hence the _LINUX specificness.
944e9e9c
TF
2744
2745TF/01 In the add_headers option to the mail command in an Exim filter,
2746 there was a bug that Exim would claim a syntax error in any
2747 header after the first one which had an odd number of characters
2748 in the field name.
2749
2b1c6e3a
PH
2750PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2751 callout verification, Exim cached a "reject" for the entire domain. This
2752 is correct for most verifications, but it is not correct for a recipient
2753 verification with use_sender or use_postmaster set, because in that case
2754 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2755 case of MAIL FROM:<> rejection from other early rejections (e.g.
2756 rejection of HELO). When verifying a recipient using a non-null MAIL
2757 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2758 Whatever the result of the callout, the value of the domain cache is
2759 left unchanged (for any other kind of callout, getting as far as trying
2760 RCPT means that the domain itself is ok).
2761
1f872c80
PH
2762PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2763 gcc 4.1.1 threw up.
2764
2765PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2766 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2767 session, the daemon ignores ECONNECT errors and logs others; it now
2768 ignores EPIPE as well.
2769
d203e649
PH
2770PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2771 (quoted-printable decoding).
2772
cc2ed8f7 2773PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2774 later the small subsequent patch to fix an introduced bug.
f951fd57 2775
ddfcd446
PH
2776PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2777
d45b1de8
PH
2778PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2779
2780PH/08 An error is now given if message_size_limit is specified negative.
2781
38a0a95f 2782PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2783 to be given (somewhat) arbitrary names.
38a0a95f 2784
a2405d83
JJ
2785JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2786 in 4.64-PH/09.
2787
2788JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2789 miscellaneous code fixes
2790
6ea85e9a
PH
2791PH/10 Added the log_reject_target ACL modifier to specify where to log
2792 rejections.
2793
26da7e20
PH
2794PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2795 hostname. This is wrong, because it relates to the incoming message (and
2796 probably the interface on which it is arriving) and not to the outgoing
2797 callout (which could be using a different interface). This has been
2798 changed to use the value of the helo_data option from the smtp transport
2799 instead - this is what is used when a message is actually being sent. If
2800 there is no remote transport (possible with a router that sets up host
2801 addresses), $smtp_active_hostname is used.
6ea85e9a 2802
14aa5a05 2803PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2804 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2805 (a) The code assumed that strncpy() returns a negative number on buffer
2806 overflow, which isn't the case. Replaced with Exim's string_format()
2807 function.
2808 (b) There were several signed/unsigned issues. I just did the minimum
2809 hacking in of casts. There is scope for a larger refactoring.
2810 (c) The code used strcasecmp() which is not a standard C function.
2811 Replaced with Exim's strcmpic() function.
2812 (d) The code set only $1; it now sets $auth1 as well.
2813 (e) A simple test gave the error "authentication client didn't specify
2814 service in request". It would seem that Dovecot has changed its
2815 interface. Fortunately there's a specification; I followed it and
2816 changed what the client sends and it appears to be working now.
2817
ff75a1f7
PH
2818PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2819 decoding.
2820
e6f6568e
PH
2821PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2822 address A is aliased to B and C, where B exists and C does not. Without
2823 -v the output is "A verified" because verification stops after a
2824 successful redirection if more than one address is generated. However,
2825 with -v the child addresses are also verified. Exim was outputting "A
2826 failed to verify" and then showing the successful verification for C,
2827 with its parentage. It now outputs "B failed to verify", showing B's
2828 parentage before showing the successful verification of C.
2829
d6f6e0dc
PH
2830PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2831 look up a TXT record in a specific list after matching in a combined
2832 list.
2833
322050c2
PH
2834PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2835 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2836 they consult the DNS. I had assumed they would set it the way they
2837 wanted; and indeed my experiments on Linux seem to show that in some
2838 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2839 To be on the safe side, however, I have now made the interface to
2840 host_find_byname() similar to host_find_bydns(), with an argument
2841 containing the DNS resolver options. The host_find_byname() function now
2842 sets these options at its start, just as host_find_bydns() does. The smtp
2843 transport options dns_qualify_single and dns_search_parents are passed to
2844 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2845 of host_find_byname() use the default settings of RES_DEFNAMES
2846 (qualify_single) but not RES_DNSRCH (search_parents).
2847
08955dd3
PH
2848PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2849 spool_read_header() do less string testing, by means of a preliminary
2850 switch on the second character of optional "-foo" lines. (This is
2851 overdue, caused by the large number of possibilities that now exist.
2852 Originally there were few.) While I was there, I also converted the
2853 str(n)cmp tests so they don't re-test the leading "-" and the first
2854 character, in the hope this might squeeze out yet more improvement.
2855
1eccaa59
PH
2856PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2857 flag allowing group syntax was set by the header_syntax check but not
2858 turned off, possible causing trouble later; (2) The flag was not being
2859 set at all for the header_verify test, causing "group"-style headers to
2860 be rejected. I have now set it in this case, and also caused header_
2861 verify to ignore an empty address taken from a group. While doing this, I
2862 came across some other cases where the code for allowing group syntax
2863 while scanning a header line wasn't quite right (mostly, not resetting
2864 the flag correctly in the right place). These bugs could have caused
2865 trouble for malformed header lines. I hope it is now all correct.
2866
602e59e5
PH
2867PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2868 with the "reply" argument non-NULL. The code, however (which originally
2869 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2870 but it didn't always do it. This confused somebody who was copying the
2871 code for some other use. I have removed all the tests.
2872
411ef850
PH
2873PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2874 feature that was used to support insecure browsers during the U.S. crypto
2875 embargo. It requires special client support, and Exim is probably the
2876 only MTA that supported it -- and would never use it because real RSA is
2877 always available. This code has been removed, because it had the bad
2878 effect of slowing Exim down by computing (never used) parameters for the
2879 RSA_EXPORT functionality.
2880
7befa435
PH
2881PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2882 authenticator to fail if there's a tab character in the incoming data
2883 (there should never be unless someone is messing about, as it's supposed
2884 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2885 if the connection is using TLS or if the remote IP is the same as the
2886 local IP, and the "valid-client-cert option" if a client certificate has
2887 been verified.
2888
48da4259 2889PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2890 authenticators. This can be used for authorization after authentication
2891 succeeds. (In the case of plaintext, it servers for both authentication
2892 and authorization.)
2893
48da4259
PH
2894PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2895 if any retry times were supplied.
2896
d1d5595c
PH
2897PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2898 connection, where there is no client IP address to check. In this
2899 situation, the verify now always succeeds.
2900
0ef732d9
PH
2901PH/25 Applied John Jetmore's -Mset patch.
2902
328895cc
PH
2903PH/26 Added -bem to be like -Mset, but loading a message from a file.
2904
fd700877
PH
2905PH/27 In a string expansion for a processed (not raw) header when multiple
2906 headers of the same name were present, leading whitespace was being
2907 removed from all of them, but trailing whitespace was being removed only
2908 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2909 before concatenation. Completely empty headers in a concatenation (as
2910 before) are ignored.
fd700877 2911
8dce1a6f
PH
2912PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2913 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2914
17af4a17
PH
2915PH/29 [Removed. This was a change that I later backed out, and forgot to
2916 correct the ChangeLog entry (that I had efficiently created) before
2917 committing the later change.]
f6c332bd
PH
2918
2919PH/30 Exim was sometimes attempting to deliver messages that had suffered
2920 address errors (4xx response to RCPT) over the same connection as other
2921 messages routed to the same hosts. Such deliveries are always "forced",
2922 so retry times are not inspected. This resulted in far too many retries
2923 for the affected addresses. The effect occurred only when there were more
2924 hosts than the hosts_max_try setting in the smtp transport when it had
2925 the 4xx errors. Those hosts that it had tried were not added to the list
2926 of hosts for which the message was waiting, so if all were tried, there
2927 was no problem. Two fixes have been applied:
2928
2929 (i) If there are any address or message errors in an SMTP delivery, none
2930 of the hosts (tried or untried) are now added to the list of hosts
2931 for which the message is waiting, so the message should not be a
2932 candidate for sending over the same connection that was used for a
2933 successful delivery of some other message. This seems entirely
2934 reasonable: after all the message is NOT "waiting for some host".
2935 This is so "obvious" that I'm not sure why it wasn't done
2936 previously. Hope I haven't missed anything, but it can't do any
2937 harm, as the worst effect is to miss an optimization.
2938
2939 (ii) If, despite (i), such a delivery is accidentally attempted, the
2940 routing retry time is respected, so at least it doesn't keep
2941 hammering the server.
2942
c1114884
PH
2943PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2944 in ${readsocket because some servers need this prod.
2945
7a0743eb
PH
2946PH/32 Added some extra debug output when updating a wait-xxx database.
2947
0d85fa3f
PH
2948PH/33 The hint "could be header name not terminated by colon", which has been
2949 given for certain expansion errors for a long time, was not being given
2950 for the ${if def:h_colon_omitted{... case.
2951
1bf43b78
PH
2952PH/34 The spec says: "With one important exception, whenever a domain list is
2953 being scanned, $domain contains the subject domain." There was at least
2954 one case where this was not true.
2955
520de300
PH
2956PH/35 The error "getsockname() failed: connection reset by peer" was being
2957 written to the panic log as well as the main log, but it isn't really
2958 panic-worthy as it just means the connection died rather early on. I have
2959 removed the panic log writing for the ECONNRESET error when getsockname()
2960 fails.
2961
48c7f9e2
PH
2962PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2963 runs only) independently of the message's sender address. This meant
2964 that, if the 4xx error was in fact related to the sender, a different
2965 message to the same recipient with a different sender could confuse
4c04137d 2966 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2967 server, but other circumstances could also provoke similar problems.
2968 I have changed the default so that the retry time for these errors is now
2969 based a combination of the sender and recipient addresses. This change
2970 can be overridden by setting address_retry_include_sender=false in the
2971 smtp transport.
2972
99ea1c86
PH
2973PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2974 remote server are returned as part of bounce messages. This was not
2975 happening for LMTP over a pipe (the lmtp transport), but now it is the
2976 same for both kinds of LMTP.
2977
a2042e78
PH
2978PH/38 Despite being documented as not happening, Exim was rewriting addresses
2979 in header lines that were in fact CNAMEs. This is no longer the case.
2980
4fbcfc2e
PH
2981PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2982 and queue runs started by the daemon processed all messages. This has
2983 been fixed so that -R and -S can now usefully be given with -q<time>.
2984
aa41d2de
PH
2985PH/40 Import PCRE release 6.7 (fixes some bugs).
2986
af561417
PH
2987PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2988
3cc66b45
PH
2989PH/42 Give an error if -q is specified more than once.
2990
194cc0e4
PH
2991PH/43 Renamed the variables $interface_address and $interface_port as
2992 $received_ip_address and $received_port, to make it clear that these
2993 values apply to message reception, and not to the outgoing interface when
2994 a message is delivered. (The old names remain recognized, of course.)
2995
a401ddaa
PH
2996PH/44 There was no timeout on the connect() call when using a Unix domain
2997 socket in the ${readsocket expansion. There now is.
2998
4e88a19f
PH
2999PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
3000 be meaningful with "accept".
3001
d7d7b289
SC
3002SC/01 Eximstats V1.43
3003 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
3004
3005SC/02 Eximstats V1.44
3006 Use a glob alias rather than an array ref in the generated
3007 parser. This improves both readability and performance.
3008
3009SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
3010 Collect SpamAssassin and rejection statistics.
3011 Don't display local sender or destination tables unless
3012 there is data to show.
3013 Added average volumes into the top table text output.
3014
3015SC/04 Eximstats V1.46
3016 Collect data on the number of addresses (recipients)
3017 as well as the number of messages.
3018
3019SC/05 Eximstats V1.47
3020 Added 'Message too big' to the list of mail rejection
3021 reasons (thanks to Marco Gaiarin).
3022
3023SC/06 Eximstats V1.48
3024 Mainlog lines which have GMT offsets and are too short to
3025 have a flag are now skipped.
3026
3027SC/07 Eximstats V1.49 (Alain Williams)
3028 Added the -emptyok flag.
3029
3030SC/08 Eximstats V1.50
3031 Fixes for obtaining the IP address from reject messages.
3032
0ea2a468
JJ
3033JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
3034 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 3035 whitespace changes from 4.64-PH/27
0ea2a468
JJ
3036
3037JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
3038 match 4.64-PH/13
3039
3040JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
3041 are found, allow negative numbers in numeric criteria)
3042
3043JJ/06 exipick.20061117.2, added new $message_body_missing variable
3044
3045JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3046 to match changes made in 4.64-PH/43
3047
8a10f5a4
PH
3048PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3049
30e18802
PH
3050PH/47 Put in an explicit test for a DNS lookup of an address record where the
3051 "domain" is actually an IP address, and force a failure. This locks out
3052 those revolvers/nameservers that support "A-for-A" lookups, in
3053 contravention of the specifications.
3054
55728a4f
PH
3055PH/48 When a host name was looked up from an IP address, and the subsequent
3056 forward lookup of the name timed out, the host name was left in
3057 $sender_host_name, contrary to the specification.
d7d7b289 3058
d7837193
PH
3059PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3060 restricted to single-key lookups, Exim was not diagnosing an error if
3061 * or *@ was used with a query-style lookup.
3062
87054a31
PH
3063PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3064
ea2c01d2
MH
3065MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3066 long ago, but noone interested enough thought of it. Let's just say that
3067 the "1.1" means that there are some new functions that weren't there at
3068 some point in the past.
3069
e4fa6968
PH
3070PH/51 Error processing for expansion failure of helo_data from an smtp
3071 transport during callout processing was broken.
3072
56f5d9bd
PH
3073PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3074 tested/used via the -bh/-bhc/-bs options.
3075
922e1c28
PH
3076PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3077 bug, fixed in subsequent PCRE releases).
3078
21eb6e72
PH
3079PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3080 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3081
a0540757
PH
3082PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3083
944e9e9c 3084
478be7b0
SC
3085Exim version 4.63
3086-----------------
3087
3088SC/01 Use a glob alias rather than an array ref in eximstats generated
3089 parser. This improves both readability and performance.
3090
3091SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3092 Don't display local sender or destination tables in eximstats unless
3093 there is data to show.
3094 Added average volumes into the eximstats top table text output.
3095
3096SC/03 Collect data on the number of addresses (recipients) as well
3097 as the number of messages in eximstats.
3098
2b965a65
TF
3099TF/01 Correct an error in the documentation for the redirect router. Exim
3100 does (usually) call initgroups() when daemonizing.
478be7b0 3101
45b91596
PH
3102TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3103 with consistent privilege compared to when running as a daemon.
478be7b0 3104
c59f5781
TF
3105TF/03 Note in the spec that $authenticated_id is not set for local
3106 submissions from trusted users.
3107
90fc3069
TF
3108TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3109 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3110
6083aca0
TF
3111TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3112 by adding some example configuration directives to the default
3113 configuration file. A little bit of work is required to uncomment the
3114 directives and define how usernames and passwords are checked, but
3115 there is now a framework to start from.
3116
765b530f
PH
3117PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3118 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3119 without this. I don't know how relevant this is to other LDAP libraries.
3120
4e167a8c
PH
3121PH/02 Add the verb name to the "unknown ACL verb" error.
3122
4608d683
PH
3123PH/03 Magnus Holmgren's patch for filter_prepend_home.
3124
b8dc3e4a
PH
3125PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3126
5418e93b
PH
3127PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3128 directory not expanded when it should be if an expanded home directory
3129 was set for the address (which is overridden by the transport).
3130
b4a9bda2
PH
3131PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3132 libradius.
3133
45b91596
PH
3134PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3135 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3136 because it is too late at that time, and has no effect.
3137
5547e2c5
PH
3138PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3139 security issue with \' (bugzilla #107). I could not use the
3140 PQescapeStringConn() function, because it needs a PGconn value as one of
3141 its arguments.
3142
dbcef0ea
PH
3143PH/08 When testing addresses using -bt, indicate those final addresses that
3144 are duplicates that would not cause an additional delivery. At least one
3145 person was confused, thinking that -bt output corresponded to deliveries.
3146 (Suppressing duplicates isn't a good idea as you lose the information
3147 about possibly different redirections that led to the duplicates.)
3148
25257489
PH
3149PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3150 systems where poll() doesn't work, in particular OS X.
3151
c816d124
PH
3152PH/10 Added more information to debugging output for retry time not reached.
3153
a9ccd69a
PH
3154PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3155 operations in malware.c.
3156
75fa1910
PH
3157PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3158 signatures.
3159
a7d7aa58
PH
3160PH/13 If write_rejectlog was set false when logging was sent to syslog with
3161 syslog_duplication set false, log lines that would normally be written
3162 both the the main log and to the reject log were not written to syslog at
3163 all.
3164
42119b09
PH
3165PH/14 In the default configuration, change the use of "message" in ACL warn
3166 statements to "add_header".
3167
41609df5
PH
3168PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3169 not followed by a command (e.g. "seen endif").
3170
a5bd321b
PH
3171PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3172 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3173 latter.
3174
e85a7ad5 3175PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3176 so that it is now:
3177
e85a7ad5
PH
3178 ${if or { \
3179 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3180 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3181 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3182 }{no}{yes}}
3183
e85a7ad5
PH
3184 The Auto-Submitted: and various List- headers are standardised, whereas I
3185 don't think Precedence: ever was.
5dff5817 3186
d8fe1c03
PH
3187PH/18 Refactored debugging code in route_finduser() to show more information,
3188 in particular, the error code if getpwnam() issues one.
3189
16282d2b
PH
3190PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3191 This is apparently needed in addition to the PH/07 change above to avoid
3192 any possible encoding problems.
3193
35d40a98
PH
3194PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3195 but not after initializing Perl.
3196
034d99ab
PH
3197PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3198 output them only if debugging. By default they are written stderr,
3199 apparently, which is not desirable.
3200
6ec97b1b
PH
3201PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3202 queries.
3203
e22ca4ac
JJ
3204JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3205 --not options
3206
3207JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3208
33d73e3b
PH
3209PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3210 authenticated or an ident call has been made. Suppress the default
3211 values for $authenticated_id and $authenticated_sender (but permit -oMai
3212 and -oMas) when testing with -bh.
3213
9ecb03f3
PH
3214PH/24 Re-jigged the order of the tests in the default configuration so that the
3215 tests for valid domains and recipients precede the DNS black list and CSA
3216 tests, on the grounds that those ones are more expensive.
3217
084efe8d
PH
3218PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3219 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3220 This bug exists in every version of Exim that I still have, right back to
3221 0.12.
3222
366fc9f0
PH
3223PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3224 However, an attempt to turn on case-sensitivity in a regex key by
3225 including (?-i) didn't work because the subject string was already
3226 lowercased, and the effects were non-intuitive. It turns out that a
3227 one-line patch can be used to allow (?-i) to work as expected.
3228
c59f5781 3229
c887c79e
TF
3230Exim version 4.62
3231-----------------
3232
3233TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3234 other effects) broke the use of negated acl sub-conditions.
3235
1cce3af8
PH
3236PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3237 patch).
3238
afb3eaaf
PH
3239PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3240 "Deny" causes Exim to reject the incoming connection with a 554 error.
3241 Unfortunately, if there is a major crisis, such as a disk failure,
3242 tcp-wrappers gives "deny", whereas what one would like would be some
3243 kind of temporary error. A kludge has been added to help with this.
3244 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3245 554 error is used if errno is still zero or contains ENOENT (which occurs
3246 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3247 451 error is used.
3248
e173618b
PH
3249PH/03 Add -lutil to the default FreeBSD LIBS setting.
3250
dd16e114
PH
3251PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3252 errors. Otherwise a message that provokes a temporary error (when other
3253 messages do not) can cause a whole host to time out.
3254
f7fd3850
PH
3255PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3256 addresses were routed directly to files or pipes from a redirect router.
3257 File deliveries just didn't batch; pipe deliveries might have suffered
3258 odd errors.
3259