Logging: fix DKIM precis received log line element.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
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
bb264f6b
JH
8Exim version 4.91
9-----------------
459fca58 10
c39c8870 11GF/01 DEFER rather than ERROR on redis cluster MOVED response.
bb264f6b
JH
12 When redis_servers is set to a list of > 1 element, and the Redis servers
13 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
14 case of MOVED into a DEFER case instead, thus moving the query onto the
15 next server in the list. For a cluster of N elements, all N servers must
16 be defined in redis_servers.
c39c8870 17
0800ef83
GF
18GF/02 Catch and remove uninitialized value warning in exiqsumm
19 Check for existence of @ARGV before looking at $ARGV[0]
20
459fca58
JH
21JH/01 Replace the store_release() internal interface with store_newblock(),
22 which internalises the check required to safely use the old one, plus
23 the allocate and data copy operations duplicated in both (!) of the
24 extant use locations.
25
944e8b37
JH
26JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
27 modifier. This matches the restriction on the commandline.
28
bbfb5dcd
JH
29JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
30 Previously only the last row was returned.
31
a05d3e34
JH
32JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
33 we assumed that tags in the header were well-formed, and parsed the
34 element content after inspecting only the first char of the tag.
35 Assumptions at that stage could crash the receive process on malformed
36 input.
37
ce93c6d8
JH
38JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
39 While running the DKIM ACL we operate on the Permanent memory pool so that
40 variables created with "set" persist to the DATA ACL. Also (at any time)
41 DNS lookups that fail create cache records using the Permanent pool. But
42 expansions release any allocations made on the current pool - so a dnsdb
43 lookup expansion done in the DKIM ACL releases the memory used for the
44 DNS negative-cache, and bad things result. Solution is to switch to the
45 Main pool for expansions.
46 While we're in that code, add checks on the DNS cache during store_reset,
47 active in the testsuite.
48 Problem spotted, and debugging aided, by Wolfgang Breyha.
49
2577f55f
JH
50JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
51 When none of the hosts presented to a transport match an already-open
52 connection, close it and proceed with the list. Previously we would
53 queue the message. Spotted by Lena with Yahoo, probably involving
54 round-robin DNS.
55
5b6f7658
JH
56JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
57 Previously a spurious "250 OK id=" response was appended to the proper
58 failure response.
59
c11d665d
JH
60JH/08 The "support for" informational output now, which built with Content
61 Scanning support, has a line for the malware scanner interfaces compiled
62 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
63
64JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
65 by the template makefile "src/EDITME". The "STREAM" support for an older
66 ClamAV interface method is removed.
c11d665d 67
ba0e37b1
JH
68JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
69 rows affected is given instead).
70
96508de1
JH
71JH/11 The runtime Berkeley DB library version is now additionally output by
72 "exim -d -bV". Previously only the compile-time version was shown.
73
06fdb9f7
JH
74JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
75 SMTP connection. Previously, when one had more receipients than the
76 first, an abortive onward connection was made. Move to full support for
77 multiple onward connections in sequence, handling cutthrough connection
78 for all multi-message initiating connections.
79
f83a760f
JH
80JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
81 routers. Previously, a multi-recipient message would fail to match the
82 onward-connection opened for the first recipient, and cause its closure.
83
f1fed05b
JH
84JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
85 a timeout on read on a GnuTLS initiating connection, resulting in the
86 initiating connection being dropped. This mattered most when the callout
87 was marked defer_ok. Fix to keep the two timeout-detection methods
88 separate.
89
051d5efa
JH
90JH/15 Relax results from ACL control request to enable cutthrough, in
91 unsupported situations, from error to silently (except under debug)
92 ignoring. This covers use with PRDR, frozen messages, queue-only and
93 fake-reject.
94
cf3cd306
HSHR
95HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
96
744976d4
JH
97JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
98 metadata, resulting in a crash in free().
99
aab9a843 100PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 101 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 102 Broken also in d185889f4, with init system revamp.
7be14582 103
83d2a861
JH
104JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
105 Previously we abruptly closed the connection after reading a malware-
106 found indication; now we go on to read the "scan ok" response line,
107 and send a quit.
108
6741531c
JH
109JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
110 ACL. Previously, a crash would result.
111
85e03244
JH
112JH/19 Speed up macro lookups during configuration file read, by skipping non-
113 macro text after a replacement (previously it was only once per line) and
114 by skipping builtin macros when searching for an uppercase lead character.
115
c0635b6d
JH
116JH/20 DANE support moved from Experimental to mainline. The Makefile control
117 for the build is renamed.
118
b808677c
JH
119JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
120 was allocated for every new TLS startup, meaning one per message. Fix
121 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
122
6678c382
JH
123JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
124 reported the original. Fix to report (as far as possible) the ACL
125 result replacing the original.
126
dec766a1
WB
127JH/23 Fix memory leak during multi-message connections using STARTTLS under
128 OpenSSL. Certificate information is loaded for every new TLS startup,
129 and the resources needed to be freed.
130
15ae19f9
JH
131JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
132
e6532c4a
JH
133JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
134 was not propagated.
135
2556b3c6
SA
136JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
137 DATA response info to the (existing) per-recipient response info for
138 the "C=" log element. It can have useful tracking info from the
139 destination system. Patch from Simon Arlott.
140
fc8cd529
JH
141JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
142 length value. Previously this would segfault.
143
71bb51e0
HSHR
144HS/02 Support Avast multiline protoocol, this allows passing flags to
145 newer versions of the scanner.
146
e04bfa34
JH
147JH/28 Ensure that variables possibly set during message acceptance are marked
148 dead before release of memory in the daemon loop. This stops complaints
149 about them when the debug_store option is enabled. Discovered specifically
150 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
151 Do the same for the queue-runner and queue-list loops, for variables set
152 from spool message files. Do the same for the SMTP per-message loop, for
153 certain variables indirectly set in ACL operations.
e04bfa34 154
ecce6d9a
JH
155JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
156 as a multi-recipient message from a mailinglist manager). The coding had
157 an arbitrary cutoff number of characters while checking for more input;
158 enforced by writing a NUL into the buffer. This corrupted long / fast
159 input. The problem was exposed more widely when more pipelineing of SMTP
160 responses was introduced, and one Exim system was feeding another.
161 The symptom is log complaints of SMTP syntax error (NUL chars) on the
162 receiving system, and refused recipients seen by the sending system
163 (propating to people being dropped from mailing lists).
164 Discovered and pinpointed by David Carter.
165
c9cf9ac4
JH
166JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
167 replaced by the ${authresults } expansion.
168
b3b37076
JH
169JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
170
830832c9
HSHR
171HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
172 allows proper process termination in container environments.
173
f64e8b5f
JH
174JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
175 Previously the "final dot" had a newline after it; ensure it is CR,LF.
176
8f0776b5
JH
177JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
178 and "err_perm", deprecated since 4.83 when the RFC-defined words
179 "temperror" and "permerror" were introduced.
180
857eaf37
JH
181JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
182 transport-filters or DKIM-signing. The restriction was lost in the
183 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 184 Extend the restriction to also cover ARC-signing.
857eaf37 185
c85476e9
JH
186JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
187 in defer=pass mode supply a 450 to the initiator. Previously the message
188 would be spooled.
189
405074ad
PP
190PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
191 tls_require_ciphers is used as before.
192
eb445b04
HSHR
193HS/03 Malware Avast: Better match the Avast multiline protocol. Add
194 "pass_unscanned". Only tmpfails from the scanner are written to
195 the paniclog, as they may require admin intervention (permission
196 denied, license issues). Other scanner errors (like decompression
197 bombs) do not cause a paniclog entry.
ad93c40f 198
d342446f
JH
199JH/36 Fix reinitialisation of DKIM logging variable between messages.
200 Previously it was possible to log spurious information in receive log
201 lines.
202
bbfb5dcd 203
acfc18c3
PP
204Exim version 4.90
205-----------------
206
207JH/01 Rework error string handling in TLS interface so that the caller in
208 more cases is responsible for logging. This permits library-sourced
209 string to be attached to addresses during delivery, and collapses
210 pairs of long lines into single ones.
211
856d1e16
PP
212PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
213 during configuration. Wildcards are allowed and expanded.
214
b9df1829
JH
215JH/02 Rework error string handling in DKIM to pass more info back to callers.
216 This permits better logging.
217
875512a3
JH
218JH/03 Rework the transport continued-connection mechanism: when TLS is active,
219 do not close it down and have the child transport start it up again on
220 the passed-on TCP connection. Instead, proxy the child (and any
221 subsequent ones) for TLS via a unix-domain socket channel. Logging is
222 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 223 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 224
fc3f96af
JH
225JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
226 identical IP addresses on different listening ports. Will also affect
227 "exiwhat" output.
228
98913c8e
BK
229PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
230 add noisy ifdef guards to special-case this sillyness.
231 Patch from Bernd Kuhls.
232
8d909960
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233JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
234 than 255 are no longer allowed.
235
7006ee24
JH
236JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
237 Disable the session-cache too, which might reduce our load. Since we
238 currrectly use a new context for every connection, both as server and
239 client, there is no benefit for these.
240 GnuTLS appears to not support tickets server-side by default (we don't
241 call gnutls_session_ticket_enable_server()) but client side is enabled
242 by default on recent versions (3.1.3 +) unless the PFS priority string
243 is used (3.2.4 +).
244
6e411084
PP
245PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
246 <https://reproducible-builds.org/specs/source-date-epoch/>.
247
4c2471ca
JH
248JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
249 the check for any unsuccessful recipients did not notice the limit, and
250 erroneously found still-pending ones.
251
4e910c01
JH
252JH/08 Pipeline CHUNKING command and data together, on kernels that support
253 MSG_MORE. Only in-clear (not on TLS connections).
254
42055a33
JH
255JH/09 Avoid using a temporary file during transport using dkim. Unless a
256 transport-filter is involved we can buffer the headers in memory for
257 creating the signature, and read the spool data file once for the
258 signature and again for transmission.
259
eeb35890
JH
260JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
261 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 262 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 263
b7d3afcf
JH
264JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
265 case where the routing stage had gathered several addresses to send to
266 a host before calling the transport for the first, we previously failed
267 to close down TLS in the old transport process before passing the TCP
268 connection to the new process. The new one sent a STARTTLS command
269 which naturally failed, giving a failed delivery and bloating the retry
270 database. Investigation and fix prototype from Wolfgang Breyha.
271
40525d07
JH
272JH/12 Fix check on SMTP command input synchronisation. Previously there were
273 false-negatives in the check that the sender had not preempted a response
274 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 275 awareness of the SMTP input buffering.
40525d07 276
f33875c3
PP
277PP/04 Add commandline_checks_require_admin option.
278 Exim drops privileges sanely, various checks such as -be aren't a
279 security problem, as long as you trust local users with access to their
280 own account. When invoked by services which pass untrusted data to
281 Exim, this might be an issue. Set this option in main configuration
282 AND make fixes to the calling application, such as using `--` to stop
283 processing options.
284
a5ffa9b4
JH
285JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
286 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
287 responses to those, into a single TLS record each way (this usually means
288 a single packet). As a side issue, smtp_enforce_sync now works on TLS
289 connections.
925ac8e4 290
6600985a
PP
291PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
292 affects you only if you're dancing at the edge of the param size limits.
293 If you are, and this message makes sense to you, then: raise the
294 configured limit or use OpenSSL 1.1. Nothing we can do for older
295 versions.
296
ac4d558b
JH
297JH/14 For the "sock" variant of the malware scanner interface, accept an empty
298 cmdline element to get the documented default one. Previously it was
299 inaccessible.
300
e69636bc
JH
301JH/15 Fix a crash in the smtp transport caused when two hosts in succession
302 are unsuable for non-message-specific reasons - eg. connection timeout,
303 banner-time rejection.
304
a843a57e
JH
305JH/16 Fix logging of delivery remote port, when specified by router, under
306 callout/hold.
307
8e041ae0
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308PP/06 Repair manualroute's ability to take options in any order, even if one
309 is the name of a transport.
833c70bc
PP
310 Fixes bug 2140.
311
35a04365
HSHR
312HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
313
4226691b
JH
314JH/17 Change the list-building routines interface to use the expanding-string
315 triplet model, for better allocation and copying behaviour.
316
d185889f
JH
317JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
318 Previously it was constructed the first time a possibly-matching string
319 was met in the configuration file input during startup; now it is done
320 during compilation.
321
0a6c178c
JH
322JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
323 compatible one, to avoid the (poorly documented) possibility of a config
324 file in the working directory redirecting the DB files, possibly correpting
02745400 325 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 326
fae8970d
JH
327JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
328 cache-hot. Previously, although the result was properly cached, the
329 initial verify call returned a defer.
330
ad1a76fe 331JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
332 the main verify for receipient in uncached-mode.
333
ad1a76fe
JH
334JH/22 Retire historical build files to an "unsupported" subdir. These are
335 defined as "ones for which we have no current evidence of testing".
336
135e9496
JH
337JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
338 if present. Previously it was ignored.
339
f2ed27cf
JH
340JH/24 Start using specified-initialisers in C structure init coding. This is
341 a C99 feature (it's 2017, so now considered safe).
342
7eb0e5d2
JH
343JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
344 if was a fixed-sized field and bitmask ops via macros; it is now more
345 extensible.
346
4f9f4be4
347PP/07 GitHub PR 56: Apply MariaDB build fix.
348 Patch provided by Jaroslav Škarvada.
349
dc4de9cc
PP
350PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
351 during Coverity cleanups [4.87 JH/47]
352 Diagnosis and fix provided by Michael Fischer v. Mollard.
353
ea18931d
JH
354JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
355 the right size to place the terminating semicolon on its own folded
356 line, the header hash was calculated to an incorrect value thanks to
357 the (relaxed) space the fold became.
358
2cee425a
HSHR
359HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
360 and confused the parent.
361
848214f7
JH
362JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
363 which could crash as a result. This could lead to undeliverable messages.
364
9e0ed81f
JH
365JH/28 Logging: "next input sent too soon" now shows where input was truncated
366 for log purposes.
367
2540f2f8
JH
368JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
369 matters on fast-turnover and PID-randomising systems, which were getting
370 out-of-order delivery.
371
e5ab0ba9
JH
372JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
373 a possibly-overlapping copy. The symptom was that "Remote host closed
374 connection in response to HELO" was logged instead of the actual 4xx
375 error for the HELO.
376
e99a3a6c
JH
377JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
378 Previously only that bufferd was discarded, resulting in SYMTP command
379 desynchronisation.
380
18067c75
JH
381JH/32 DKIM: when a message has multiple signatures matching an identity given
382 in dkim_verify_signers, run the dkim acl once for each. Previously only
383 one run was done. Bug 2189.
384
72934ba7
JH
385JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
386 "panic the current process" to "deliberately defer". The panic log is
387 still written with the problem list name; the mail and reject logs now
388 get a temp-reject line for the message that was being handled, saying
389 something like "domains check lookup or other defer". The SMTP 451
390 message is still "Temporary local problem".
391
625667b6
JH
392JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
393 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
394 freed. CVE-2017-16943.
395
396HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
397 from SMTP input. Previously it was always done; now only done for DATA
398 and not BDAT commands. CVE-2017-16944.
625667b6 399
d21bf202
JH
400JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
401 to the message (such as an overlong header line). Previously this was
402 not done and we did not exit BDAT mode. Followon from the previous item
403 though a different problem.
404
acfc18c3 405
fd047340 406Exim version 4.89
acfc18c3 407-----------------
4c57a40e 408
9427e879 409JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 410 than -2003 did; needs libidn2 in addition to libidn.
fd047340 411
7b283890
JH
412JH/02 The path option on a pipe transport is now expanded before use.
413
4c57a40e
PP
414PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
415 Patch provided by "Björn", documentation fix added too.
416
5d036699
JH
417JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
418 missing a wire-to-host endian conversion.
419
f4630439
JH
420JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
421 close after a BDAT command line could be taken as a following command,
422 giving a synch failure. Fix by only checking for synch immediately
423 before acknowledging the chunk.
424
f988ce57
JS
425PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
426 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
427 macro. Patches provided by Josh Soref.
428
bd8fbe36
JH
429JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
430 Previously we did not; the RFC seems ambiguous and VRFY is not listed
431 by IANA as a service extension. However, John Klensin suggests that we
432 should.
433
434JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
435 the dkim code may be unix-mode line endings rather than smtp wire-format
436 CRLF, so prepend a CR to any bare LF.
fd047340 437
bd8fbe36 438JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
439 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
440
bd8fbe36
JH
441JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
442 the first were themselves being wrongly included in the feed into dkim
443 processing; with most chunk sizes in use this resulted in an incorrect
444 body hash calculated value.
445
eea19017
JH
446JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
447 DKIM signature block, for verification. Although advised against by
448 standards it is specifically not ruled illegal.
449
44e6651b
JH
450JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
451
452JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
453 missing a body hash (the bh= tag).
454
455JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
456 It seems that HAProxy sends the Proxy Protocol information in clear and
457 only then does a TLS startup, so do the same.
458
459JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
460 TCP connections (such as for Spamd) unless the daemon successfully set
461 Fast Open mode on its listening sockets. This fixes breakage seen on
462 too-old kernels or those not configured for Fast Open, at the cost of
463 requiring both directions being enabled for TFO, and TFO never being used
464 by non-daemon-related Exim processes.
465
466JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
467 endings, at least on the first header line. Try to canonify any that get
468 past that check, despite the cost.
469
b6040544
JH
470JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
471 now limited to an arbitrary five deep, while parsing addresses with the
472 strip_excess_angle_brackets option enabled.
473
f700ea4d
PP
474PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
475 instead leave the unprompted TLS handshake in socket buffer for the
476 TLS library to consume.
477
da88acae
PP
478PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
479
f6ef9370
PP
480PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
481
90341c71
JH
482JH/16 Drop variables when they go out of scope. Memory management drops a whole
483 region in one operation, for speed, and this leaves assigned pointers
484 dangling. Add checks run only under the testsuite which checks all
485 variables at a store-reset and panics on a dangling pointer; add code
486 explicitly nulling out all the variables discovered. Fixes one known
487 bug: a transport crash, where a dangling pointer for $sending_ip_address
488 originally assigned in a verify callout, is re-used.
489
1ec2ab36
PP
490PP/06 Drop '.' from @INC in various Perl scripts.
491
492PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
493
494PP/08 Reduce a number of compilation warnings under clang; building with
495 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
496 should be warning-free.
497
8b2b9480
PP
498JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
499
500HS/01 Fix portability problems introduced by PP/08 for platforms where
501 realloc(NULL) is not equivalent to malloc() [SunOS et al].
502
d953610f
HSHR
503HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
504 chunk. This allows us to accept broken chunked messages. We need a more
505 general solution here.
506
7dc5f827
PP
507PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
508 already-broken messages in the queue.
509
4bb432cb
PP
510JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
511
3b1a84c8
PP
512JH/19 Fix reference counting bug in routing-generated-address tracking.
513
902fbd69 514
8d042305
JH
515Exim version 4.88
516-----------------
4c57a40e 517
9094b84b
JH
518JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
519 supports it and a size is available (ie. the sending peer gave us one).
8d042305 520
03d5892b
JH
521JH/02 The obsolete acl condition "demime" is removed (finally, after ten
522 years of being deprecated). The replacements are the ACLs
523 acl_smtp_mime and acl_not_smtp_mime.
524
4b0fe319
JH
525JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
526 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
527 or even an in-clear connection were permitted. Now, if the host lookup
528 was dnssec and dane was requested then the host is only used if the
529 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
530 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
531 if one fails this test.
532 This means that a poorly-configured remote DNS will make it incommunicado;
533 but it protects against a DNS-interception attack on it.
534
789f8a4f
JH
535JH/04 Bug 1810: make continued-use of an open smtp transport connection
536 non-noisy when a race steals the message being considered.
537
23bb6982 538JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 539 self-signed certificate for inbound TLS connections.
23bb6982 540
0bd1b1ed 541JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 542 in rewrites and routers.
0bd1b1ed 543
20b9a2dc
JH
544JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
545 and logged a warning sing 4.83; now they are a configuration file error.
546
05392bbc
JH
547JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
548 (lacking @domain). Apply the same qualification processing as RCPT.
549
1a6230a3
JH
550JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
551
cfab9d68
JH
552JH/10 Support ${sha256:} applied to a string (as well as the previous
553 certificate).
554
98c82a3d
JH
555JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
556 a cutthrough deliver is pending, as we always want to make a connection.
557 This also avoids re-routing the message when later placing the cutthrough
558 connection after a verify cache hit.
559 Do not update it with the verify result either.
560
561JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
562 when routing results in more than one destination address.
563
ae8386f0
JH
564JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
565 signing (which inhibits the cutthrough capability). Previously only
566 the presence of an option was tested; now an expansion evaluating as
567 empty is permissible (obviously it should depend only on data available
568 when the cutthrough connection is made).
569
0d9fa8c0
JH
570JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
571 the relevant preceding SMTP command did not note the pipelining mode.
572
3581f321
JH
573JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
574 Previously they were not counted.
575
ef3a1a30
JH
576JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
577 as one having no matching records. Previously we deferred the message
578 that needed the lookup.
579
4c04137d 580JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
581 distinguished as "(=".
582
1435d4b2
JH
583JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
584 for missing MX records. Previously it only worked for missing A records.
585
eea0defe
JB
586JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
587
588JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
589 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 590
4c04137d 591JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
592 even for a "none" policy. Patch from Tony Meyer.
593
1c788856
JH
594JH/22 Fix continued use of a connection for further deliveries. If a port was
595 specified by a router, it must also match for the delivery to be
596 compatible.
597
e3b1f624
JH
598JH/23 Bug 1874: fix continued use of a connection for further deliveries.
599 When one of the recipients of a message was unsuitable for the connection
600 (has no matching addresses), we lost track of needing to mark it
601 deferred. As a result mail would be lost.
602
a57ce043
JH
603JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
604
f59aaaaa 605JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
606 takes up less space and should be simpler to maintain. Merge the ACL
607 condition decode tables also, with similar effect.
d7bed771 608
d1f9fb42
JH
609JH/26 Fix problem with one_time used on a redirect router which returned the
610 parent address unchanged. A retry would see the parent address marked as
611 delivered, so not attempt the (identical) child. As a result mail would
612 be lost.
613
92b0827a
JH
614JH/27 Fix a possible security hole, wherein a process operating with the Exim
615 UID can gain a root shell. Credit to http://www.halfdog.net/ for
616 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
617 itself :(
618
ddf1b11a
JH
619JH/28 Enable {spool,log} filesystem space and inode checks as default.
620 Main config options check_{log,spool}_{inodes,space} are now
621 100 inodes, 10MB unless set otherwise in the configuration.
622
3cc3f762
JH
623JH/29 Fix the connection_reject log selector to apply to the connect ACL.
624 Previously it only applied to the main-section connection policy
625 options.
626
ae5afa61
JH
627JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
628
317e40ac
PP
629PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
630 by me. Added RFC7919 DH primes as an alternative.
631
8b0fb68e
PP
632PP/02 Unbreak build via pkg-config with new hash support when crypto headers
633 are not in the system include path.
634
ad7fc6eb 635JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 636 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
637 Exim did stdio operations after fclose. This was exposed by a recent
638 change which nulled out the file handle after the fclose.
ad7fc6eb 639
ee5b1e28
JH
640JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
641 signed directly by the cert-signing cert, rather than an intermediate
642 OCSP-signing cert. This is the model used by LetsEncrypt.
643
5ddc9771
JH
644JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
645
8d73599f
JH
646HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
647 an incoming connection.
648
446415f5
HSHR
649HS/02 Bug 1802: Do not half-close the connection after sending a request
650 to rspamd.
651
8e53a4fc
HSHR
652HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
653 fallback to "prime256v1".
8d042305 654
87cb4a16 655JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 656 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
657
658
0d9b78be
JH
659Exim version 4.87
660-----------------
4c57a40e 661
82d14d6a
JH
662JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
663 and 3.4.4 - once the server is enabled to respond to an OCSP request
664 it does even when not requested, resulting in a stapling non-aware
665 client dropping the TLS connection.
0d9b78be 666
6c6d6e48
TF
667TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
668 support variable-length bit vectors. No functional change.
669
ac881e27
TF
670TF/02 Improve the consistency of logging incoming and outgoing interfaces.
671 The I= interface field on outgoing lines is now after the H= remote
672 host field, same as incoming lines. There is a separate
673 outgoing_interface log selector which allows you to disable the
674 outgoing I= field.
675
c8899c20
JH
676JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
677 If not running log_selector +smtp_connection the mainlog would be held
678 open indefinitely after a "too many connections" event, including to a
679 deleted file after a log rotate. Leave the per net connection logging
680 leaving it open for efficiency as that will be quickly detected by the
681 check on the next write.
682
f1b81d81
HSHR
683HS/01 Bug 1671: Fix post transport crash.
684 Processing the wait-<transport> messages could crash the delivery
685 process if the message IDs didn't exist for some reason. When
686 using 'split_spool_directory=yes' the construction of the spool
687 file name failed already, exposing the same netto behaviour.
688
f38917cc
JH
689JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
690 mime_regex ACL conditions.
691
895fbaf2
JH
692JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
693 to DSN fail messages (bounces): remote IP, remote greeting, remote response
694 to HELO, local diagnostic string.
695
805bb5c3
JH
696JH/05 Downgrade message for a TLS-certificate-based authentication fail from
697 log line to debug. Even when configured with a tls authenticator many
698 client connections are expected to not authenticate in this way, so
699 an authenticate fail is not an error.
700
56c2a7be
HSHR
701HS/02 Add the Exim version string to the process info. This way exiwhat
702 gives some more detail about the running daemon.
703
4c04137d 704JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
705 matter for fast-change records such as DNSBLs.
706
6f6dedcc
JH
707JH/07 Bug 1678: Always record an interface option value, if set, as part of a
708 retry record, even if constant. There may be multiple transports with
709 different interface settings and the retry behaviour needs to be kept
710 distinct.
711
0f557e90
JH
712JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
713
714JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
715
ec0eb1a3
JH
716JH/10 Bug 840: fix log_defer_output option of pipe transport
717
41e93589
JH
718JH/11 Bug 830: use same host for all RCPTS of a message, even under
719 hosts_randomize. This matters a lot when combined with mua_wrapper.
720
98b98887 721JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
722 ${quote_pgsql:<string>} operator.
723
98b98887
JH
724JH/13 Bug 1708: avoid misaligned access in cached lookup.
725
858e91c2
JH
726JH/14 Change header file name for freeradius-client. Relevant if compiling
727 with Radius support; from the Gentoo tree and checked under Fedora.
728
729JH/15 Bug 1712: Introduce $prdr_requested flag variable
730
6ff55e50
JH
731JH/16 Bug 1714: Permit an empty string as expansion result for transport
732 option transport_filter, meaning no filtering.
733
3b957582
JB
734JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
735
23f3dc67
JH
736JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
737 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 738 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
739 If a server certificate is not supplied (via tls_certificate) an error is
740 logged, and clients will find TLS connections fail on startup. Presumably
741 they will retry in-clear.
742 Packagers of Exim are strongly encouraged to create a server certificate
743 at installation time.
744
240c288f
JH
745HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
746 with the $config_file variable.
747
5ef5dd52
JB
748JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
749 in transport context, after the attempt, and per-recipient. The latter type
750 is per host attempted. The event data is the error message, and the errno
751 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 752 and the trailing two digits of the smtp 4xx response.
5ef5dd52 753
e161710d
GF
754GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
755 to write to mainlog (or rejectlog, paniclog) in the window between file
756 creation and permissions/ownership being changed. Particularly affects
757 installations where exicyclog is run as root, rather than exim user;
758 result is that the running daemon panics and dies.
759
a159f203
JH
760JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
761
7f06582c
JH
762JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
763 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
764 "pri" and "weight". Note that the previous implicit priority given by the
765 list order is no longer honoured.
766
4c04137d 767JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
768 for DKIM processing.
769
f0989ec0
JH
770JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
771 by defining SUPPORT_SOCKS.
74f150bf 772
cee5f132
JH
773JH/26 Move PROXY support from Experimental to mainline, enabled for a build
774 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
775 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
776 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 777
8c5d388a
JH
778JH/27 Move Internationalisation support from Experimental to mainline, enabled
779 for a build by defining SUPPORT_I18N
780
2d8d625b
JH
781JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
782 of the query string, and make ${quote_redis:} do that quoting.
783
0cbf2b82
JH
784JH/29 Move Events support from Experimental to mainline, enabled by default
785 and removable for a build by defining DISABLE_EVENT.
786
f2f2c91b
JH
787JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
788
ce325893
JH
789JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
790 cached by the daemon.
791
de78e2d5
JH
792JH/32 Move Redis support from Experimental to mainline, enabled for a build
793 by defining LOOKUP_REDIS. The libhiredis library is required.
794
379ba7d0
JH
795JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
796 keys are given for lookup.
797
f444c2c7
JH
798JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
799 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
800 only supported when built with TLS support. The PolarSSL SHA routines
801 are still used when the TLS library is too old for convenient support.
f444c2c7 802
a57b6200
JH
803JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
804 openssl_options), for security. OpenSSL forces this from version 1.1.0
805 server-side so match that on older versions.
806
07c73177 807JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 808 allocation for $value could be released as the expansion processing
07c73177 809 concluded, but leaving the global pointer active for it.
fa01e4f8 810
4f6ae5c3
JH
811JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
812 and to use the domains and local_parts ACL conditions.
813
1bc460a6
JH
814JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
815 incorrectly not doubled on cutthrough transmission, hence seen as a
816 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 817 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
818 via the normal store-and-forward channel. This could result in duplicates
819 received - but deduplicating mailstores were liable to retain only the
820 initial truncated version.
821
ab9152ff 822JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 823
67e87fcf
JH
824JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
825
ab9152ff
JH
826JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
827 we're in there, support oversigning also; bug 1309.
828
af483912
JH
829JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
830
bc3c7bb7 831HS/04 Add support for keep_environment and add_environment options.
df3def24 832
13559da6
JH
833JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
834 either intentional arithmetic overflow during PRNG, or testing config-
835 induced overflows.
836
59eaad2b
JH
837JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
838 delivery resulted in actual delivery. Cancel cutthrough before DATA
839 stage.
840
f9334a28
JH
841JH/45 Fix cutthrough, when connection not opened by verify and target hard-
842 rejects a recipient: pass the reject to the originator.
843
dc8091e7
JH
844JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
845 Many were false-positives and ignorable, but it's worth fixing the
846 former class.
847
dfe7d917
JH
848JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
849 for the new environment-manipulation done at startup. Move the routines
850 from being local to tls.c to being global via the os.c file.
851
93cc2d6e
JH
852JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
853 an extract embedded as result-arg for a map, the first arg for extract
854 is unavailable so we cannot tell if this is a numbered or keyed
855 extraction. Accept either.
856
13559da6 857
9c695f6d
JH
858Exim version 4.86
859-----------------
4c57a40e 860
9c695f6d
JH
861JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
862 expanded.
863
506900af
JH
864JH/02 The smtp transport option "multi_domain" is now expanded.
865
ad07e9ad
JH
866JH/03 The smtp transport now requests PRDR by default, if the server offers
867 it.
868
01a4a5c5 869JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 870 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
871 can be used to disable this per-host. The build option
872 EXPERIMENTAL_CERTNAMES is withdrawn.
873
cb1d7830 874JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 875 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
876 For GnuTLS, only version 3.0.20 or later.
877
610ff438 878JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
879 (but not required) by default. The verification status is now logged by
880 default, for both outbound TLS and client-certificate supplying inbound
881 TLS connections
610ff438 882
f926e272
JH
883JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
884 sites use this now.
885
50dc7409
JH
886JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
887 Status Notification (bounce) messages are now MIME format per RFC 3464.
888 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
889 under the control of the dsn_advertise_hosts option, and routers may
890 have a dsn_lasthop option.
891
0f0c8159
JH
892JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
893 default, modifiable by a malware= option. The list separator for
23763898 894 the options can now be changed in the usual way. Bug 68.
4e71661f 895
1ad6489e
JH
896JH/10 The smtp_receive_timeout main option is now expanded before use.
897
aeaf5db3
JH
898JH/11 The incoming_interface log option now also enables logging of the
899 local interface on delivery outgoing connections.
900
5032d1cf
JH
901JH/12 The cutthrough-routing facility now supports multi-recipient mails,
902 if the interface and destination host and port all match.
903
7e8360e6
JH
904JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
905 /defer_ok option.
906
c5f280e2
AL
907JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
908 Patch from Andrew Lewis.
909
fd4d8871 910JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 911 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
912 modifiers per server. Patch originally by <rommer@active.by>.
913
914JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
915 and remote servers. Remote servers can be IPv6 addresses, and
916 specify a port-range.
fd4d8871 917
23763898
JH
918JH/17 Bug 68: The spamd_address main option now supports an optional
919 timeout value per server.
920
2ad78978
JH
921JH/18 Bug 1581: Router and transport options headers_add/remove can
922 now have the list separator specified.
923
8a512ed5 924JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 925 option values.
8a512ed5 926
82c0c8ea 927JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
928 under OpenSSL.
929
cc00f4af
JH
930JH/21 Support for the A6 type of dns record is withdrawn.
931
82c0c8ea
JH
932JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
933 rather than the verbs used.
934
b980ed83
JH
935JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
936 from 255 to 1024 chars.
937
6c9ed72e
JH
938JH/24 Verification callouts now attempt to use TLS by default.
939
cfab9d68 940HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 941 are generic router options now. The defaults didn't change.
50dc7409 942
f846c8f5
JH
943JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
944 Original patch from Alexander Shikoff, worked over by JH.
945
fd4c285c
HSHR
946HS/02 Bug 1575: exigrep falls back to autodetection of compressed
947 files if ZCAT_COMMAND is not executable.
948
4c04137d 949JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 950
d2a2c69b
JH
951JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
952
8241d8dd
JH
953JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
954 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 955 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
956 (and we were inconsistent anyway for A-only vs AAAA+A).
957
1f12df4d
JH
958JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
959
1f155f8e
JH
960JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
961 when evaluating $sender_host_dnssec.
962
1705dd20
JH
963JH/31 Check the HELO verification lookup for DNSSEC, adding new
964 $sender_helo_dnssec variable.
965
038597d2
PP
966JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
967
474f71bf
JH
968JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
969
7137ca4b
JH
970JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
971
dcb1095c
JH
972JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
973 documented as working, but never had. Support all but $spam_report.
974
2f460950
JH
975JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
976 added for tls authenticator.
977
2f680c0c
HSHR
978HS/03 Add perl_taintmode main config option
979
9c695f6d 980
e449c3b0
TL
981Exim version 4.85
982-----------------
4c57a40e 983
e449c3b0
TL
984TL/01 When running the test suite, the README says that variables such as
985 no_msglog_check are global and can be placed anywhere in a specific
986 test's script, however it was observed that placement needed to be near
987 the beginning for it to behave that way. Changed the runtest perl
988 script to read through the entire script once to detect and set these
989 variables, reset to the beginning of the script, and then run through
990 the script parsing/test process like normal.
991
ac20058f
TL
992TL/02 The BSD's have an arc4random API. One of the functions to induce
993 adding randomness was arc4random_stir(), but it has been removed in
994 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
995 function when detected.
996
a9b8ec8b
JH
997JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
998 cause callback expansion.
999
6286d7c4
TL
1000TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1001 syntax errors in an expansion can be treated as a string instead of
1002 logging or causing an error, due to the internal use of bool_lax
1003 instead of bool when processing it.
1004
0f06b4f2 1005JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1006 server certificates when making smtp deliveries.
1007
be36e572
JH
1008JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1009
ac4ef9bd
JH
1010JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1011
0eb51736
TL
1012TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1013
c713ca4b
TL
1014TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1015 Merged patch from Sebastian Wiedenroth.
e449c3b0 1016
bd21a787
WB
1017JH/05 Fix results-pipe from transport process. Several recipients, combined
1018 with certificate use, exposed issues where response data items split
1019 over buffer boundaries were not parsed properly. This eventually
1020 resulted in duplicates being sent. This issue only became common enough
4c04137d 1021 to notice due to the introduction of connection certificate information,
bd21a787
WB
1022 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1023
8bc732e8
JH
1024JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1025 size buffer was used, resulting in syntax errors when an expansion
1026 exceeded it.
1027
a7fec7a7
JH
1028JH/07 Add support for directories of certificates when compiled with a GnuTLS
1029 version 3.3.6 or later.
1030
4c04137d 1031JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1032 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1033 both become "event_action", the variables become $event_name, $event_data
aec45841 1034 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1035 routers, transports and related events. The tls:cert event is now also
1036 raised for inbound connections, if the main configuration event_action
1037 option is defined.
774ef2d7 1038
eca4debb
TL
1039TL/06 In test suite, disable OCSP for old versions of openssl which contained
1040 early OCSP support, but no stapling (appears to be less than 1.0.0).
1041
8d692470
JH
1042JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1043 server certificate names available under the smtp transport option
1044 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1045 matches.
1046
e9477a08
JH
1047JH/10 Time-related extraction expansions from certificates now use the main
1048 option "timezone" setting for output formatting, and are consistent
1049 between OpenSSL and GnuTLS compilations. Bug 1541.
1050
ad4c5ff9
JH
1051JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1052 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1053
1054JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1055 include certificate info, eximon was claiming there were spoolfile
1056 syntax errors.
1057
3394b36a 1058JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1059
1060JH/14 Log delivery-related information more consistently, using the sequence
1061 "H=<name> [<ip>]" wherever possible.
1062
3394b36a
TL
1063TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1064 are problematic for Debian distribution, omit them from the release
1065 tarball.
1066
ad4c5ff9
JH
1067JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1068
4c04137d 1069JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1070 Bug 1561.
1071
1072JH/17 Fix a null-indirection in certextract expansions when a nondefault
1073 output list separator was used.
1074
8bc732e8 1075
1f0ebb98
TL
1076Exim version 4.84
1077-----------------
09728d20
TL
1078TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1079 checkers that were complaining about end of non-void function with no
1080 return.
1f0ebb98 1081
a612424f 1082JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1083 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1084
1085JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1086
1087TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1088 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1089
1f0ebb98 1090
c0e56233
TF
1091Exim version 4.83
1092-----------------
1093
1094TF/01 Correctly close the server side of TLS when forking for delivery.
1095
1096 When a message was received over SMTP with TLS, Exim failed to clear up
1097 the incoming connection properly after forking off the child process to
1098 deliver the message. In some situations the subsequent outgoing
1099 delivery connection happened to have the same fd number as the incoming
1100 connection previously had. Exim would try to use TLS and fail, logging
1101 a "Bad file descriptor" error.
1102
7245734e
TF
1103TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1104 utilities have not been installed.
1105
fd5dad68
JH
1106JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1107 temporary space as the ACL may create new global variables.
1108
5428a946
TL
1109TL/01 LDAP support uses per connection or global context settings, depending
1110 upon the detected version of the libraries at build time.
1111
a3c86431
TL
1112TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1113 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1114 were a direct connection from the outside internet. PPv2 support was
1115 updated based on HAProxy spec change in May 2014.
a3c86431 1116
aa26e137
JH
1117JH/02 Add ${listextract {number}{list}{success}{fail}}.
1118
5a1b8443
WB
1119TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1120 Properly escape header and check for NULL return.
1121
72c9e342
PP
1122PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1123 not dns_use_dnssec.
1124
76f44207
WB
1125JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1126
770747fd
MFM
1127TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1128 characters in header names, implemented as a verify condition.
1129 Contributed by Michael Fischer v. Mollard.
1130
8ddef691 1131TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1132 results permerror and temperror. Previous values are deprecated but
1133 still accepted. In a future release, err_perm and err_temp will be
1134 completely removed, which will be a backward incompatibility if the
1135 ACL tests for either of these two old results. Patch contributed by
8ddef691 1136 user bes-internal on the mailing list.
c0e56233 1137
b9c2e32f
AR
1138JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1139
e45a1c37
JH
1140JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1141 selectors, in both main and reject logs.
1142
67d81c10
JH
1143JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1144 failed delivery.
1145
b1f8e4f8
JH
1146JH/07 Add malware type "sock" for talking to simple daemon.
1147
511a6c14 1148JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1149
1150JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1151 routers/transports under cutthrough routing.
214042d2 1152
51c7471d
JH
1153JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1154 numbers. Touch up "bool" conditional to keep the same definition.
1155
3695be34
TL
1156TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1157
1e06383a
TL
1158JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1159
76146973
JH
1160JH/12 Expand items in router/transport headers_add or headers_remove lists
1161 individually rather than the list as a whole. Bug 1452.
1162
1163 Required for reasonable handling of multiple headers_ options when
1164 they may be empty; requires that headers_remove items with embedded
1165 colons must have them doubled (or the list-separator changed).
1166
8c8b8274
TL
1167TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1168 view the policy declared in the DMARC record. Currently, $dmarc_status
1169 is a combined value of both the record presence and the result of the
1170 analysis.
b1f8e4f8 1171
35aba663
JH
1172JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1173
8c51eead 1174JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1175 dnslookup router and the smtp transport (applying to the forward
1176 lookup).
8c51eead 1177
deae092e
HS
1178TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1179 of ldap servers used for a specific lookup. Patch provided by Heiko
1180 Schlichting.
35aba663 1181
fd3b6a4a 1182JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1183 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1184
8d91c6dc
LT
1185TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1186 Patch submitted by Lars Timman.
1187
2b4a568d
JH
1188JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1189
d2af03f4
HS
1190TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1191 Requires trusted mode and valid format message id, aborts otherwise.
1192 Patch contributed by Heiko Schlichting.
1193
9d1c15ef
JH
1194JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1195 certextract with support for various fields. Bug 1358.
1196
44662487
JH
1197JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1198 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1199 hosts_request_ocsp.
1200
ed3bba5f 1201JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1202 operate on certificate variables to give certificate fingerprints
9ef9101c 1203 Also new ${sha256:cert_variable}.
44662487 1204
8ccd00b1
JH
1205JH/23 The PRDR feature is moved from being Experimental into the mainline.
1206
8ded8589
TL
1207TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1208 Christian Aistleitner.
1209
f2de3a33
JH
1210JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1211
6eb02f88
TL
1212TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1213 file. Patch from Wolfgang Breyha.
1214
00bff6f6
JH
1215JH/25 Expand the coverage of the delivery $host and $host_address to
1216 client authenticators run in verify callout. Bug 1476.
1217
071c51f7
JH
1218JH/26 Port service names are now accepted for tls_on_connect_ports, to
1219 align with daemon_smtp_ports. Bug 72.
1220
a6d4c44e
TF
1221TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1222 support and error reporting did not work properly.
1223
3ae173e7
ACK
1224TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1225 and is readable. Patch from Andrew Colin Kissa.
1226
c13d09b8
TL
1227TL/14 Enhance documentation of ${run expansion and how it parses the
1228 commandline after expansion, particularly in the case when an
1229 unquoted variable expansion results in an empty value.
1230
0df4ab80
JH
1231JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1232
66be95e0
PP
1233PP/02 Fix internal collision of T_APL on systems which support RFC3123
1234 by renaming away from it. Addresses GH issue 15, reported by
1235 Jasper Wallace.
1236
1bd0d12b
JH
1237JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1238
0de7239e
TL
1239TL/15 SECURITY: prevent double expansion in math comparison functions
1240 (can expand unsanitized data). Not remotely exploitable.
1241 CVE-2014-2972
1242
fd3b6a4a 1243
2c422e6f 1244Exim version 4.82
98a90c36
PP
1245-----------------
1246
1247PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1248
12f69989
PP
1249PP/02 Make -n do something, by making it not do something.
1250 When combined with -bP, the name of an option is not output.
1251
54c90be1
PP
1252PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1253 by GnuTLS.
1254
1f4a55da
PP
1255PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1256 $sender_host_name and config options to manage this, and basic check
1257 routines.
1258
13363eba 1259PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1260
66645890 1261PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1262 (Only plugin which currently uses this is kerberos4, which nobody should
1263 be using, but we should make it available and other future plugins might
1264 conceivably use it, even though it would break NAT; stuff *should* be
1265 using channel bindings instead).
66645890 1266
a3fb9793 1267PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1268 name; added for Sendmail compatibility; requires admin caller.
1269 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1270 just ignore it); requires trusted caller.
a3fb9793 1271 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1272 Bugzilla 1117.
a3fb9793 1273
d27f98fe 1274TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1275
6822b909
TL
1276TL/02 Add +smtp_confirmation as a default logging option.
1277
e7568d51
TL
1278TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1279 Patch by Magnus Holmgren from 2007-02-20.
1280
ae0e32ee 1281TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1282 Bugzilla 1283 - Spec typo.
97f42f10 1283 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1284
1285TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1286
e2658fff
TL
1287TL/06 Add Experimental DMARC support using libopendmarc libraries.
1288
83712b39
TL
1289TL/07 Fix an out of order global option causing a segfault. Reported to dev
1290 mailing list by by Dmitry Isaikin.
1291
976b7e9f
JH
1292JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1293
be4a1376
JH
1294JH/02 Support "G" suffix to numbers in ${if comparisons.
1295
ec4b68e5
PP
1296PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1297
d7148a07
NM
1298NM/01 Bugzilla 1197 - Spec typo
1299 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1300
585121e2 1301JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1302
2519e60d
TL
1303PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1304 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1305 function.
a5f239e4 1306
13d08c90
PP
1307PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1308 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1309
bef3ea7f
JH
1310JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1311 "acl {{name}{arg}...}", and optional args on acl condition
1312 "acl = name arg..."
a5f239e4 1313
846726c5
JH
1314JH/05 Permit multiple router/transport headers_add/remove lines.
1315
3a796370
JH
1316JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1317
ea722490 1318JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1319 Performance patch from Paul Fisher. Bugzilla 1262.
1320
b1b05573
JH
1321JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1322 Bugzilla 884.
1323
362145b5
JH
1324JH/09 Add $headers_added variable, with content from use of ACL modifier
1325 add_header (but not yet added to the message). Bugzilla 199.
1326
3c0a92dc
JH
1327JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1328 Pulled from Bugzilla 817 by Wolfgang Breyha.
1329
6d7c6175
PP
1330PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1331 CVE-2012-5671
e78e6ecf 1332 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1333
6f123593
JH
1334JH/11 Add A= logging on delivery lines, and a client_set_id option on
1335 authenticators.
1336
c8e2fc1e
JH
1337JH/12 Add optional authenticated_sender logging to A= and a log_selector
1338 for control.
1339
005ac57f
PP
1340PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1341
3f1df0e3
PP
1342PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1343 advertise SMTP AUTH mechanism to us, instead of a generic
1344 protocol violation error. Also, make Exim more robust to bad
1345 data from the Dovecot auth socket.
1346
67bd1ab3
TF
1347TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1348
1349 When a queue runner is handling a message, Exim first routes the
1350 recipient addresses, during which it prunes them based on the retry
1351 hints database. After that it attempts to deliver the message to
1352 any remaining recipients. It then updates the hints database using
1353 the retry rules.
1354
1355 So if a recipient address works intermittently, it can get repeatedly
1356 deferred at routing time. The retry hints record remains fresh so the
1357 address never reaches the final cutoff time.
1358
1359 This is a fairly common occurrence when a user is bumping up against
1360 their storage quota. Exim had some logic in its local delivery code
1361 to deal with this. However it did not apply to per-recipient defers
1362 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1363
1ddeb334
TF
1364 This change adds a proper retry rule check during routing so that the
1365 final cutoff time is checked against the message's age. We only do
1366 this check if there is an address retry record and there is not a
1367 domain retry record; this implies that previous attempts to handle
1368 the address had the retry_use_local_parts option turned on. We use
1369 this as an approximation for the destination being like a local
1370 delivery, as in LMTP.
67bd1ab3
TF
1371
1372 I suspect this new check makes the old local delivery cutoff check
1373 redundant, but I have not verified this so I left the code in place.
1374
326cdc37
TF
1375TF/02 Correct gecos expansion when From: is a prefix of the username.
1376
1377 Test 0254 submits a message to Exim with the header
1378
1379 Resent-From: f
1380
1381 When I ran the test suite under the user fanf2, Exim expanded
1382 the header to contain my full name, whereas it should have added
1383 a Resent-Sender: header. It erroneously treats any prefix of the
1384 username as equal to the username.
1385
1386 This change corrects that bug.
1387
f62514b3
GF
1388GF/01 DCC debug and logging tidyup
1389 Error conditions log to paniclog rather than rejectlog.
1390 Debug lines prefixed by "DCC: " to remove any ambiguity.
1391
eb505532
TF
1392TF/03 Avoid unnecessary rebuilds of lookup-related code.
1393
14c7b357
PP
1394PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1395 Bug spotted by Jeremy Harris; was flawed since initial commit.
1396 Would have resulted in OCSP responses post-SNI triggering an Exim
1397 NULL dereference and crash.
1398
94eaf700
PP
1399JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1400
6f5a440a
PP
1401PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1402 Bug detection, analysis and fix by Samuel Thibault.
1403 Bugzilla 1331, Debian bug #698092.
1404
514ee161
SC
1405SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1406
fd98a5c6
JH
1407JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1408 Server implementation by Todd Lyons, client by JH.
1409 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1410 config variable "prdr_enable" controls whether the server
1411 advertises the facility. If the client requests PRDR a new
1412 acl_data_smtp_prdr ACL is called once for each recipient, after
1413 the body content is received and before the acl_smtp_data ACL.
4c04137d 1414 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1415 on the smtp transport, and the server advertisement.
1416 Default client logging of deliveries and rejections involving
1417 PRDR are flagged with the string "PRDR".
1418
035c7f1e
PP
1419PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1420 fclose(). Diagnosis by Todd Lyons.
1421
ff284120
PP
1422PP/17 Update configure.default to handle IPv6 localhost better.
1423 Patch by Alain Williams (plus minor tweaks).
1424 Bugzilla 880.
1425
26e72755
PP
1426PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1427 This is now consistent with GnuTLS, and is now documented: the
1428 previous undocumented portable approach to treating the option as
1429 unset was to force an expansion failure. That still works, and
1430 an empty string is now equivalent.
1431
0fbd9bff
PP
1432PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1433 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1434 not performing validation itself.
1435
700d22f3
PP
1436PP/20 Added force_command boolean option to pipe transport.
1437 Patch from Nick Koston, of cPanel Inc.
1438
fcc8e047
JH
1439JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1440 Bugzilla 321, 823.
1441
4c04137d 1442TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1443
8c020188
PP
1444PP/21 Fix eximon continuous updating with timestamped log-files.
1445 Broken in a format-string cleanup in 4.80, missed when I repaired the
1446 other false fix of the same issue.
1447 Report and fix from Heiko Schlichting.
1448 Bugzilla 1363.
1449
d13cdd30
PP
1450PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1451 Report from Prashanth Katuri.
1452
e2fbf4a2
PP
1453PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1454 It's SecureTransport, so affects any MacOS clients which use the
1455 system-integrated TLS libraries, including email clients.
1456
f4c1088b
PP
1457PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1458 using a MIME ACL for non-SMTP local injection.
1459 Report and assistance in diagnosis by Warren Baker.
1460
c5c2182f
PP
1461TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1462
73431ca9
JH
1463JH/16 Fix comparisons for 64b. Bugzilla 1385.
1464
2d07a215
TL
1465TL/09 Add expansion variable $authenticated_fail_id to keep track of
1466 last id that failed so it may be referenced in subsequent ACL's.
1467
a30a8861
TL
1468TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1469 Alexander Miroch.
1470
33382dd9
TL
1471TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1472 ldap library initialization, allowing self-signed CA's to be
1473 used. Also properly sets require_cert option later in code by
1474 using NULL (global ldap config) instead of ldap handle (per
1475 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1476
046172e6
TL
1477TL/12 Enhanced documentation in the ratelimit.pl script provided in
1478 the src/util/ subdirectory.
1479
581d7bee 1480TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1481 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1482 EXPERIMENTAL_TPDA.
1483
1484TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1485 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1486 redis_servers = needs to be configured which will be used by the redis
1487 lookup. Patch from Warren Baker, of The Packet Hub.
1488
237b2cf2
TL
1489TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1490
9fc5a352
TL
1491TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1492 hostname or reverse DNS when processing a host list. Used suggestions
1493 from multiple comments on this bug.
1a7b746d 1494
b10e4ec2
TL
1495TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1496
e2cebd74
TL
1497TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1498 Missed a few lines, added it to make the runtest require no keyboard
1499 interaction.
1500
1501TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1502 contains upper case chars. Make router use caseful_local_part.
1503
2519e60d
TL
1504TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1505 support when GnuTLS has been built with p11-kit.
1506
e78e6ecf 1507
4263f395
PP
1508Exim version 4.80.1
1509-------------------
1510
1511PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1512 CVE-2012-5671
2c422e6f 1513 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1514
ea722490 1515
b1770b6e 1516Exim version 4.80
0599f9cf
PP
1517-----------------
1518
1519PP/01 Handle short writes when writing local log-files.
1520 In practice, only affects FreeBSD (8 onwards).
1521 Bugzilla 1053, with thanks to Dmitry Isaikin.
1522
23c7e742
NM
1523NM/01 Bugzilla 949 - Documentation tweak
1524
b322aac8
NM
1525NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1526 improved.
1527
4a891427
NM
1528NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1529
c1e794ba 1530PP/02 Implemented gsasl authenticator.
b322aac8 1531
97753960
PP
1532PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1533
1534PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1535 `pkg-config foo` for cflags/libs.
1536
df6303fa
PP
1537PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1538 with rest of GSASL and with heimdal_gssapi.
1539
7e6a8985
PP
1540PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1541 `pkg-config foo` for cflags/libs for the TLS implementation.
1542
f1e05cc7 1543PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1544 properties get this fed in as external SSF. A number of robustness
1545 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1546
4c287009
PP
1547PP/08 cyrus_sasl server now expands the server_realm option.
1548
b98bb9ac
PP
1549PP/09 Bugzilla 1214 - Log authentication information in reject log.
1550 Patch by Jeremy Harris.
1551
4a6a987a
PP
1552PP/10 Added dbmjz lookup type.
1553
c45dd180 1554PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1555
7db8d074
PP
1556PP/12 MAIL args handles TAB as well as SP, for better interop with
1557 non-compliant senders.
1558 Analysis and variant patch by Todd Lyons.
1559
eae0036b 1560NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1561 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1562 Patch from Dirk Mueller <dmueller@suse.com>
1563
dec5017e
PP
1564PP/13 tls_peerdn now print-escaped for spool files.
1565 Observed some $tls_peerdn in wild which contained \n, which resulted
1566 in spool file corruption.
1567
c80c5570
PP
1568PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1569 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1570 or write after TLS renegotiation, which otherwise led to messages
1571 "Got SSL error 2".
1572
076b11e2
PP
1573TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1574 as a tracking header (ie: a signed header comes before the signature).
1575 Patch from Wolfgang Breyha.
1576
5407bfff
JH
1577JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1578 comma-sep list; embedded commas doubled.
1579
9e45c72b
PP
1580JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1581
e74376d8
PP
1582PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1583 diagnostics.
1584 Report and patch from Dmitry Banschikov.
1585
4c04137d 1586PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1587 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1588 failures. We appear to now support TLS1.1+ with Exim.
1589
7be682ca
PP
1590PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1591 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1592 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1593 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1594
ef840681
PP
1595PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1596 NULL dereference. Report and patch from Alun Jones.
1597
5bfb4cdf
PP
1598PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1599 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1600 Not seeing resolver debug output on NetBSD, but suspect this is a
1601 resolver implementation change.
1602
c6e95d22
PP
1603PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1604 Left warnings. Added "eximon gdb" invocation mode.
1605
9cbad13b
PP
1606PP/21 Defaulting "accept_8bitmime" to true, not false.
1607
9ee44efb
PP
1608PP/22 Added -bw for inetd wait mode support.
1609
6a6084f8
PP
1610PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1611 locate the relevant includes and libraries. Made this the default.
1612
12dd53c7
PP
1613PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1614 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1615
9e45c72b 1616JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1617 This may cause build issues on older platforms.
1618
17c76198
PP
1619PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1620 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1621 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1622 Added SNI support via GnuTLS too.
af3498d6 1623 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1624
53947857 1625PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1626
eae0036b 1627PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1628 Applied second patch from Janne, implementing suggestion to default
1629 multiple-strings-in-record handling to match SPF spec.
eae0036b 1630
9e45c72b 1631JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1632
7390e768
PP
1633PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1634 read-only, out of scope).
1635 Patch from Wolfgang Breyha, report from Stuart Northfield.
1636
08488c86
PP
1637PP/29 Fix three issues highlighted by clang analyser static analysis.
1638 Only crash-plausible issue would require the Cambridge-specific
1639 iplookup router and a misconfiguration.
1640 Report from Marcin Mirosław.
1641
6475bd82
PP
1642PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1643
81f91683
PP
1644PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1645 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1646 As part of this, removing so much warning spew let me fix some minor
1647 real issues in debug logging.
1648
5779e6aa
PP
1649PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1650 assignment on my part. Fixed.
1651
3375e053
PP
1652PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1653 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1654 Janne Snabb (who went above and beyond: thank you).
1655
1656PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1657 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1658 relatively easy to get wrong. Should also expose TLS library linkage
1659 problems.
3375e053 1660
9d26b8c0
PP
1661PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1662 64-bit ${eval} (JH/03).
1663
57eb9e91 1664PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1665 GNU libc to support some of the 64-bit stuff, should not lead to
1666 conflicts. Defined before os.h is pulled in, so if a given platform
1667 needs to override this, it can.
1668
16880d1a
PP
1669PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1670 protection layer was required, which is not implemented.
1671 Bugzilla 1254, patch from Wolfgang Breyha.
1672
a799883d
PP
1673PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1674 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1675 tls_dhparam take prime identifiers. Also unbreak combination of
1676 OpenSSL+DH_params+TLSSNI.
1677
3ecab157 1678PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1679
0599f9cf 1680
867fcbf5
PP
1681Exim version 4.77
1682-----------------
1683
1684PP/01 Solaris build fix for Oracle's LDAP libraries.
1685 Bugzilla 1109, patch from Stephen Usher.
1686
f1a29782
TF
1687TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1688
ab42bd23
TK
1689TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1690 whitespace trailer
867fcbf5 1691
0ca0cf52
TF
1692TF/02 Fix a couple more cases where we did not log the error message
1693 when unlink() failed. See also change 4.74-TF/03.
1694
921b12ca
TF
1695TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1696 lock up or crash if it happened to be inside a call to libc when it
1697 got a SIGUSR1 from exiwhat.
1698
1699 The SIGUSR1 handler appends the current process status to the process
1700 log which is later printed by exiwhat. It used to use the general
1701 purpose logging code to do this, but several functions it calls are
1702 not safe for signals.
1703
1704 The new output code in the SIGUSR1 handler is specific to the process
1705 log, and simple enough that it's easy to inspect for signal safety.
1706 Removing some special cases also simplifies the general logging code.
1707 Removing the spurious timestamps from the process log simplifies
1708 exiwhat.
1709
c99ce5c9
TF
1710TF/04 Improved ratelimit ACL condition.
1711
1712 The /noupdate option has been deprecated in favour of /readonly which
1713 has clearer semantics. The /leaky, /strict, and /readonly update modes
1714 are mutually exclusive. The update mode is no longer included in the
1715 database key; it just determines when the database is updated. (This
4c04137d 1716 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1717
1718 Exim now checks that the per_* options are used with an update mode that
1719 makes sense for the current ACL. For example, when Exim is processing a
1720 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1721 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1722 must specify per_mail/readonly. If you omit the update mode it defaults to
1723 /leaky where that makes sense (as before) or /readonly where required.
1724
1725 The /noupdate option is now undocumented but still supported for
1726 backwards compatibility. It is equivalent to /readonly except that in
1727 ACLs where /readonly is required you may specify /leaky/noupdate or
1728 /strict/noupdate which are treated the same as /readonly.
1729
1730 A useful new feature is the /count= option. This is a generalization
1731 of the per_byte option, so that you can measure the throughput of other
1732 aggregate values. For example, the per_byte option is now equivalent
1733 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1734
1735 The per_rcpt option has been generalized using the /count= mechanism
1736 (though it's more complicated than the per_byte equivalence). When it is
1737 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1738 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1739 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1740 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1741 Note that using per_rcpt with a non-readonly update mode in more than
1742 one ACL will cause the recipients to be double-counted. (The per_mail
1743 and per_byte options don't have this problem.)
1744
1745 The handling of very low rates has changed slightly. If the computed rate
1746 is less than the event's count (usually one) then this event is the first
1747 after a long gap. In this case the rate is set to the same as this event's
1748 count, so that the first message of a spam run is counted properly.
1749
1750 The major new feature is a mechanism for counting the rate of unique
1751 events. The new per_addr option counts the number of different
1752 recipients that someone has sent messages to in the last time period. It
1753 behaves like per_rcpt if all the recipient addresses are different, but
1754 duplicate recipient addresses do not increase the measured rate. Like
1755 the /count= option this is a general mechanism, so the per_addr option
1756 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1757 example, measure the rate that a client uses different sender addresses
1758 with the options per_mail/unique=$sender_address. There are further
1759 details in the main documentation.
1760
3634fc25
TF
1761TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1762
792e8a19
TF
1763TF/06 Removed a few PCRE remnants.
1764
5901f0ab
TF
1765TF/07 Automatically extract Exim's version number from tags in the git
1766 repository when doing development or release builds.
1767
7f2a2a43
PP
1768PP/02 Raise smtp_cmd_buffer_size to 16kB.
1769 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1770
061b7ebd
PP
1771PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1772 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1773 Bugzilla 97.
1774
e12f8c32
PP
1775PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1776
9e949f00 1777PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1778 Bugzilla 1078. Patch from John Horne.
1779
1780PP/06 Stop make process more reliably on build failure.
1781 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1782
555ae6af 1783PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1784 Bugzilla 1089. Patch from Heiko Schlittermann.
1785
1786PP/08 Handle ${run} returning more data than OS pipe buffer size.
1787 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1788
6f7fe114
PP
1789PP/09 Handle IPv6 addresses with SPF.
1790 Bugzilla 860. Patch from Wolfgang Breyha.
1791
c566dd90
PP
1792PP/10 GnuTLS: support TLS 1.2 & 1.1.
1793 Bugzilla 1156.
89f897c3
PP
1794 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1795 Bugzilla 1095.
c566dd90 1796
d6cc7c78 1797PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1798 New compile-time build option, EXPAND_LISTMATCH_RHS.
1799 New expansion conditions, "inlist", "inlisti".
1800
0d0e4455
PP
1801PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1802
3399bb60 1803PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1804
1805PP/14 fix log_write() format string regression from TF/03.
1806 Bugzilla 1152. Patch from Dmitry Isaikin.
1807
0ca0cf52 1808
10906672
PP
1809Exim version 4.76
1810-----------------
1811
1812PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1813
754a0503
PP
1814PP/02 Harmonised TLS library version reporting; only show if debugging.
1815 Layout now matches that introduced for other libraries in 4.74 PP/03.
1816
c0c7b2da
PP
1817PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1818
e97d1f08
PP
1819PP/04 New "dns_use_edns0" global option.
1820
084c1d8c
PP
1821PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1822 Bugzilla 1098.
1823
4e7ee012
PP
1824PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1825 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1826
c8d52a00
PP
1827TK/01 Updated PolarSSL code to 0.14.2.
1828 Bugzilla 1097. Patch from Andreas Metzler.
1829
54e7ce4a
PP
1830PP/07 Catch divide-by-zero in ${eval:...}.
1831 Fixes bugzilla 1102.
1832
5ee6f336
PP
1833PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1834 Bugzilla 1104.
1835
c8d52a00 1836TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1837 format-string attack -- SECURITY: remote arbitrary code execution.
1838
1839TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1840 time unintentionally subject to list matching rules, letting the header
1841 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1842 arbitrary string expansion). This allowed for information disclosure.
1843
1844PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1845 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1846
10906672 1847
aa097c4c
NM
1848Exim version 4.75
1849-----------------
1850
4c04137d 1851NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1852 Bugzilla 1073
1853
7f3d9eff
TF
1854TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1855 This fixes portability to compilers other than gcc, notably
1856 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1857
159f52d2
TF
1858TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1859 makefiles for portability to HP-UX and POSIX correctness.
1860
0cc9542a
PP
1861PP/01 Permit LOOKUP_foo enabling on the make command-line.
1862 Also via indented variable definition in the Makefile.
1863 (Debugging by Oliver Heesakkers).
1864
f7274286
PP
1865PP/02 Restore caching of spamd results with expanded spamd_address.
1866 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1867
7b797365
PP
1868PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1869 Improves build reliability. Fix from: Frank Elsner
1870
caacae52
NM
1871NM/02 Fix wide character breakage in the rfc2047 coding
1872 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1873
09dcaba9
NM
1874NM/03 Allow underscore in dnslist lookups
1875 Fixes bug 1026. Patch from Graeme Fowler
1876
bc19a55b
PP
1877PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1878 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1879
bd4c9759
NM
1880NM/04 Fixed exiqgrep to cope with mailq missing size issue
1881 Fixes bug 943.
1882
b72aab72
PP
1883PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1884 is logged, to avoid truncation. Patch from John Horne.
1885
2fe76745
PP
1886PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1887 Patch from Jakob Hirsch.
1888
76aa570c
PP
1889PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1890 SQL string expansion failure details.
1891 Patch from Andrey Oktyabrski.
1892
f1e5fef5
PP
1893PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1894 Patch from Simon Arlott.
1895
4d805ee9
PP
1896PP/09 New lookups functionality failed to compile on old gcc which rejects
1897 extern declarations in function scope.
1898 Patch from Oliver Fleischmann
1899
cd59ab18
PP
1900PP/10 Use sig_atomic_t for flags set from signal handlers.
1901 Check getgroups() return and improve debugging.
1902 Fixed developed for diagnosis in bug 927 (which turned out to be
1903 a kernel bug).
1904
332f5cf3
PP
1905PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1906 Patch from Mark Zealey.
1907
29cfeb94
PP
1908PP/12 Bugzilla 1056: Improved spamd server selection.
1909 Patch from Mark Zealey.
1910
660242ad
PP
1911PP/13 Bugzilla 1086: Deal with maildir quota file races.
1912 Based on patch from Heiko Schlittermann.
1913
bc4bc4c5
PP
1914PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1915 Patch from Uwe Doering, sign-off by Michael Haardt.
1916
2e64baa9
NM
1917NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1918 variable declaration deep within a block. Bug and patch from
1919 Dennis Davis.
1920
4c04137d 1921PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1922
6bac1a9a
PP
1923PP/16 Make DISABLE_DKIM build knob functional.
1924
552193f0
NM
1925NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1926 Patch by Simon Arlott
baeee2c1 1927
1b587e48
TF
1928TF/03 Fix valgrind.h portability to C89 compilers that do not support
1929 variable argument macros. Our copy now differs from upstream.
1930
aa097c4c 1931
8c07b69f
TF
1932Exim version 4.74
1933-----------------
1934
1935TF/01 Failure to get a lock on a hints database can have serious
1936 consequences so log it to the panic log.
1937
c0ea85ab
TF
1938TF/02 Log LMTP confirmation messages in the same way as SMTP,
1939 controlled using the smtp_confirmation log selector.
1940
0761d44e
TF
1941TF/03 Include the error message when we fail to unlink a spool file.
1942
0a349494
PP
1943DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1944 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1945 for maintaining out-of-tree patches for some time.
1946
1947PP/01 Bugzilla 139: Documentation and portability issues.
1948 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1949 Handle per-OS dynamic-module compilation flags.
1950
fea24b2e
PP
1951PP/02 Let /dev/null have normal permissions.
1952 The 4.73 fixes were a little too stringent and complained about the
1953 permissions on /dev/null. Exempt it from some checks.
1954 Reported by Andreas M. Kirchwitz.
1955
6545de78
PP
1956PP/03 Report version information for many libraries, including
1957 Exim version information for dynamically loaded libraries. Created
1958 version.h, now support a version extension string for distributors
1959 who patch heavily. Dynamic module ABI change.
1960
1670ef10
PP
1961PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1962 privilege escalation vulnerability whereby the Exim run-time user
1963 can cause root to append content of the attacker's choosing to
1964 arbitrary files.
1965
c0886197
PP
1966PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1967 (Wolfgang Breyha)
1968
b7487bce
PP
1969PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1970 If dropping privileges for untrusted macros, we disabled normal logging
1971 on the basis that it would fail; for the Exim run-time user, this is not
1972 the case, and it resulted in successful deliveries going unlogged.
1973 Fixed. Reported by Andreas Metzler.
1974
8c07b69f 1975
97fd1e48 1976Exim version 4.73
ed7f7860 1977-----------------
97fd1e48
PP
1978
1979PP/01 Date: & Message-Id: revert to normally being appended to a message,
1980 only prepend for the Resent-* case. Fixes regression introduced in
1981 Exim 4.70 by NM/22 for Bugzilla 607.
1982
6901c596
PP
1983PP/02 Include check_rfc2047_length in configure.default because we're seeing
1984 increasing numbers of administrators be bitten by this.
1985
a8c8d6b5
JJ
1986JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1987
77bb000f
PP
1988PP/03 Bugzilla 994: added openssl_options main configuration option.
1989
a29e5231
PP
1990PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1991
ec5a0394 1992PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 1993
55c75993
PP
1994PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1995
453a6645 1996PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
1997 without a peer certificate, leading to a segfault because of an
1998 assumption that peers always have certificates. Be a little more
453a6645
PP
1999 paranoid. Problem reported by Martin Tscholak.
2000
8544e77a
PP
2001PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2002 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2003 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2004 CL also introduces -bmalware, various -d+acl logging additions and
2005 more caution in buffer sizes.
8544e77a 2006
83e029d5
PP
2007PP/09 Implemented reverse_ip expansion operator.
2008
ed7f7860
PP
2009PP/10 Bugzilla 937: provide a "debug" ACL control.
2010
7d9f747b
PP
2011PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2012
4b2241d2
PP
2013PP/12 Bugzilla 973: Implement --version.
2014
10385c15
PP
2015PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2016
dbc4b90d
PP
2017PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2018
532be449
PP
2019PP/15 Bugzilla 816: support multiple condition rules on Routers.
2020
6a8de854 2021PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2022 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2023 ignore trailing whitespace.
6a8de854 2024
5dc43717
JJ
2025JJ/02 prevent non-panic DKIM error from being sent to paniclog
2026
2027JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2028 "exim" to be used
55c75993 2029
3346ab01
PP
2030PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2031 Notification from Dr Andrew Aitchison.
2032
491fab4c
PP
2033PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2034 ExtendedDetectionInfo response format.
2035 Notification from John Horne.
2036
13eb9497
PP
2037PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2038 compatible.
2039
2040PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2041 XSL and documented dependency on system catalogs, with examples of how
2042 it normally works.
2043
7f36d675
DW
2044DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2045 access.
2046
c1d94452
DW
2047DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2048 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2049 configuration file which is writeable by the Exim user or group.
2050
e2f5dc15
DW
2051DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2052 of configuration files to cover files specified with the -C option if
2053 they are going to be used with root privileges, not just the default
2054 configuration file.
2055
cd25e41d
DW
2056DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2057 option (effectively making it always true).
2058
261dc43e
DW
2059DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2060 files to be used while preserving root privileges.
2061
fa32850b
DW
2062DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2063 that rogue child processes cannot use them.
2064
79d4bc3d
PP
2065PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2066 run-time user, instead of root.
2067
43236f35 2068PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2069 Exim run-time user without dropping privileges.
2070
fb08281f
DW
2071DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2072 result string, instead of calling string_vformat() twice with the same
2073 arguments.
3346ab01 2074
74935b98
DW
2075DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2076 for other users. Others should always drop root privileges if they use
2077 -C on the command line, even for a whitelisted configure file.
2078
90b6341f
DW
2079DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2080
57730b52
ML
2081NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2082
66581d1e 2083
465e92cf
JJ
2084Exim version 4.72
2085-----------------
2086
453a6645
PP
2087JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2088 $data_path, and $header_path variables; fixed documentation bugs and
2089 typos
465e92cf 2090
453a6645
PP
2091JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2092 exipick to access non-standard spools, including the "frozen" queue
2093 (Finput)
edae0343 2094
9bd3e22c
NM
2095NM/01 Bugzilla 965: Support mysql stored procedures.
2096 Patch from Alain Williams
2097
bb576ff7
NM
2098NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2099
5a1a5845
NM
2100NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2101 Patch from Andreas Metzler
2102
981a9fad
NM
2103NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2104 Patch from Kirill Miazine
2105
7fc497ee
NM
2106NM/05 Bugzilla 671: Added umask to procmail example.
2107
1a41defa
JJ
2108JJ/03 installed exipick 20100323.0, fixing doc bug
2109
a466095c 2110NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2111 directory. Notification and patch from Dan Rosenberg.
a466095c 2112
94a6bd0b
NM
2113TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2114
2115TK/02 Improve log output when DKIM signing operation fails.
2116
2117MH/01 Treat the transport option dkim_domain as a colon separated
2118 list, not as a single string, and sign the message with each element,
2119 omitting multiple occurences of the same signer.
2120
c1b141a8
NM
2121NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2122 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2123
b26eacf1 2124NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2125 Patch by Simon Arlott
2126
179c5980 2127PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2128 MBX locking. Notification from Dan Rosenberg.
179c5980 2129
9bd3e22c 2130
7c6d71af
NM
2131Exim version 4.71
2132-----------------
2133
7d9f747b 2134TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2135
f013fb92
NM
2136NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2137
0eb8eedd
NM
2138NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2139
663ee6d9
NM
2140NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2141
177ebd9b
NM
2142NM/04 Bugzilla 915: Flag broken perl installation during build.
2143
7c6d71af 2144
210f147e
NM
2145Exim version 4.70
2146-----------------
2147
cdd3bb85 2148TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2149 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2150
2151TK/02 Write list of recipients to X-Envelope-Sender header when building
2152 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2153 Hirsch).
cdd3bb85
TK
2154
2155TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2156 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2157 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2158
2159TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2160 by Mark Daniel Reidel <mr@df.eu>.
2161
210f147e
NM
2162NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2163 When building exim an external PCRE library is now needed -
2164 PCRE is a system library on the majority of modern systems.
2165 See entry on PCRE_LIBS in EDITME file.
2166
deafd5b3
NM
2167NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2168 conversation. Added nologin parameter to request.
7d9f747b 2169 Patch contributed by Kirill Miazine.
deafd5b3 2170
089793a4
TF
2171TF/01 Do not log submission mode rewrites if they do not change the address.
2172
5f16ca82
TF
2173TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2174
dae9d94e 2175NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2176 log files in place. Contributed by Roberto Lima.
dae9d94e 2177
7d9f747b 2178NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2179
06864c44
TF
2180TF/03 Bugzilla 615: When checking the local_parts router precondition
2181 after a local_part_suffix or local_part_prefix option, Exim now
2182 does not use the address's named list lookup cache, since this
2183 contains cached lookups for the whole local part.
2184
65a7d8c3 2185NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2186 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2187
23510047 2188TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2189
7d9f747b 2190NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2191
7d8eec3a 2192NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2193 Patch provided by Jan Srzednicki.
6c588e74 2194
89dec7b6
TF
2195TF/05 Leading white space used to be stripped from $spam_report which
2196 wrecked the formatting. Now it is preserved.
5f28a6e8 2197
a99de90c
TF
2198TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2199 that they are available at delivery time.
2200
e2803e40
TF
2201TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2202
7199e1ee
TF
2203TF/08 TLS error reporting now respects the incoming_interface and
2204 incoming_port log selectors.
2205
e276e04b
TF
2206TF/09 Produce a more useful error message if an SMTP transport's hosts
2207 setting expands to an empty string.
2208
ce552449 2209NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2210 Patch provided by Phil Pennock.
ce552449 2211
e765a0f1 2212NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2213 Patch provided by Richard Godbee.
e765a0f1 2214
4f054c63 2215NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2216 acl_smtp_notquit, added index entry.
4f054c63 2217
7d9f747b
PP
2218NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2219 Patch provided by Eugene Bujak.
24c929a2 2220
7d9f747b
PP
2221NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2222 accept(). Patch provided by Maxim Dounin.
cf73943b 2223
b52bc06e 2224NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2225 Patch provided by Phil Pennock.
b52bc06e 2226
447de4b0
NM
2227NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2228
4c69d561 2229NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2230 Patch provided by Brad "anomie" Jorsch.
4c69d561 2231
d5c39246 2232NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2233 Patch provided by Dean Brooks.
9b989985 2234
0b23848a
TK
2235TK/05 Add native DKIM support (does not depend on external libraries).
2236
8f3414a1 2237NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2238 Patch provided by Graeme Fowler.
e2aacdfd 2239
fb6f955d
NM
2240NM/16 Bugzilla 851: Documentation example syntax fix.
2241
2242NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2243
7d9f747b
PP
2244NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2245 lsearch.
dbb0bf41 2246
7d9f747b
PP
2247NM/19 Bugzilla 745: TLS version reporting.
2248 Patch provided by Phil Pennock.
f3766eb5 2249
7d9f747b
PP
2250NM/20 Bugzilla 167: bool: condition support.
2251 Patch provided by Phil Pennock.
36f12725 2252
7d9f747b
PP
2253NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2254 clients. Patch provided by Phil Pennock.
e6060e2c 2255
7d9f747b
PP
2256NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2257 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2258
7d9f747b
PP
2259NM/23 Bugzilla 687: Fix misparses in eximstats.
2260 Patch provided by Heiko Schlittermann.
d5c13d66 2261
7d9f747b
PP
2262NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2263 Patch provided by Heiko Schlittermann.
b2335c0b 2264
7d9f747b 2265NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2266 plus update to original patch.
f4cd9433 2267
7d9f747b 2268NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2269
7d9f747b
PP
2270NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2271 Patch provided by David Brownlee.
8dc71ab3 2272
7d9f747b 2273NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2274
7d9f747b 2275NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2276
7d9f747b 2277NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2278
7d9f747b 2279NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2280
17792b53 2281NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2282 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2283
7d9f747b
PP
2284NM/33 Bugzilla 898: Transport filter timeout fix.
2285 Patch by Todd Rinaldo.
52383f8f 2286
91576cec 2287NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2288 Patch by Serge Demonchaux.
5ca6d115 2289
7d9f747b
PP
2290NM/35 Bugzilla 39: Base64 decode bug fixes.
2291 Patch by Jakob Hirsch.
baee9eee 2292
7d9f747b 2293NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2294
7d9f747b 2295NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2296
7d9f747b 2297NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2298
7d9f747b 2299NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2300
deafd5b3 2301
47db1125
NM
2302Exim version 4.69
2303-----------------
2304
4b3504d0
TK
2305TK/01 Add preliminary DKIM support. Currently requires a forked version of
2306 ALT-N's libdkim that I have put here:
2307 http://duncanthrax.net/exim-experimental/
2308
2309 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2310 were called 'true' and it seems that C99 defines that as a reserved
2311 keyword to be used with 'bool' variable types. That means you could
2312 not include C99-style headers which use bools without triggering
2313 build errors in sieve.c.
2314
81ea09ca
NM
2315NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2316 as mailq or other aliases. Changed the --help handling significantly
2317 to do whats expected. exim_usage() emits usage/help information.
2318
f13cddcb
SC
2319SC/01 Added the -bylocaldomain option to eximstats.
2320
7d9f747b 2321NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2322
7d9f747b 2323NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2324
7d9f747b 2325NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2326
2327
eb4c0de6
PH
2328Exim version 4.68
2329-----------------
2330
2331PH/01 Another patch from the Sieve maintainer.
2332
6a3bceb1
PH
2333PH/02 When an IPv6 address is converted to a string for single-key lookup
2334 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2335 dots are used instead of colons so that keys in lsearch files need not
2336 contain colons. This was done some time before quoting was made available
2337 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2338 (notated using the quote facility) so as to distinguish them from IPv4
2339 keys. This meant that lookups for IP addresses in host lists did not work
2340 for iplsearch lookups.
2341
2342 This has been fixed by arranging for IPv6 addresses to be expressed with
2343 colons if the lookup type is iplsearch. This is not incompatible, because
2344 previously such lookups could never work.
2345
4c04137d 2346 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2347 ordinary lsearch keys. However, making the change in all cases is
2348 incompatible and would probably break a number of configurations.
2349
2e30fa9d
TK
2350TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2351 version.
2352
0806a9c5
MH
2353MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2354 conversion specification without a maximum field width, thereby enabling
2355 a rogue spamd server to cause a buffer overflow. While nobody in their
2356 right mind would setup Exim to query an untrusted spamd server, an
2357 attacker that gains access to a server running spamd could potentially
2358 exploit this vulnerability to run arbitrary code as the Exim user.
2359
ae276964
TK
2360TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2361 $primary_hostname instead of what libspf2 thinks the hosts name is.
2362
0f2cbd1b
MH
2363MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2364 a directory entry by the name of the lookup key. Previously, if a
2365 symlink pointed to a non-existing file or a file in a directory that
2366 Exim lacked permissions to read, a lookup for a key matching that
2367 symlink would fail. Now it is enough that a matching directory entry
2368 exists, symlink or not. (Bugzilla 503.)
2369
2b85bce7
PH
2370PH/03 The body_linecount and body_zerocount variables are now exported in the
2371 local_scan API.
2372
93655c46
PH
2373PH/04 Added the $dnslist_matched variable.
2374
6c512171
PH
2375PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2376 This means they are set thereafter only if the connection becomes
2377 encrypted.
2378
2379PH/06 Added the client_condition to authenticators so that some can be skipped
2380 by clients under certain conditions.
2381
aa6dc513
PH
2382PH/07 The error message for a badly-placed control=no_multiline_responses left
2383 "_responses" off the end of the name.
2384
a96603a0
PH
2385PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2386
8f240103
PH
2387PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2388 (without spaces) instead of just copying the configuration text.
2389
2390PH/10 Added the /noupdate option to the ratelimit ACL condition.
2391
d677b2f2
PH
2392PH/11 Added $max_received_linelength.
2393
d52120f2
PH
2394PH/12 Added +ignore_defer and +include_defer to host lists.
2395
64f2600a
PH
2396PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2397 way in which PCRE > 7.0 is built.
2398
8669f003
PH
2399PH/14 Implemented queue_only_load_latch.
2400
a4dc33a8
PH
2401PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2402 MAIL command. The effect was to mangle the value on 64-bit systems.
2403
d6a60c0f
PH
2404PH/16 Another patch from the Sieve maintainer.
2405
8f128379
PH
2406PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2407
8932dffe
PH
2408PH/18 If a system quota error occurred while trying to create the file for
2409 a maildir delivery, the message "Mailbox is full" was not appended to the
2410 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2411 only to a quota excession during the actual writing of the file.
d6a60c0f 2412
ddea74fa 2413PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2414 characters?) which causes problems in log lines. The DN values are now
2415 passed through string_printing() before being added to log lines.
2416
ddea74fa 2417PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2418 and InterBase are left for another time.)
2419
ddea74fa
PH
2420PH/21 Added message_body_newlines option.
2421
ce9f225c
PH
2422PH/22 Guard against possible overflow in moan_check_errorcopy().
2423
19897d52
PH
2424PH/23 POSIX allows open() to be a macro; guard against that.
2425
bc64a74d
PH
2426PH/24 If the recipient of an error message contained an @ in the local part
2427 (suitably quoted, of course), incorrect values were put in $domain and
2428 $local_part during the evaluation of errors_copy.
2429
eb4c0de6 2430
b4ed4da0
PH
2431Exim version 4.67
2432-----------------
2433
22ad45c9
MH
2434MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2435 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2436 Jan Srzednicki.
2437
b4ed4da0
PH
2438PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2439 issue a MAIL command.
2440
431b7361
PH
2441PH/02 In an ACL statement such as
2442
2443 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2444
2445 if a client was not listed at all, or was listed with a value other than
2446 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2447 the condition was not true (as it should be), so access was not denied.
2448 The bug was that the ! inversion was incorrectly passed on to the second
2449 item. This has been fixed.
2450
2451PH/03 Added additional dnslists conditions == and =& which are different from
2452 = and & when the dns lookup returns more than one IP address.
2453
83da1223
PH
2454PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2455 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2456
54fc8428
PH
2457PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2458 FSYNC, which compiles an option called disable_fsync that allows for
2459 bypassing fsync(). The documentation is heavily laced with warnings.
2460
34c5e8dd
SC
2461SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2462
bbe15da8
PH
2463PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2464 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2465 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2466 including adding "make clean"; (3) Added -fPIC when compiling the test
2467 dynamically loaded module, to get rid of a warning.
2468
0e8a9471
MH
2469MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2470 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2471 = 0s. The bug is otherwise harmless.
2472
f0872424
PH
2473PH/07 There was a bug in the dovecot authenticator such that the value of
2474 $auth1 could be overwritten, and so not correctly preserved, after a
2475 successful authentication. This usually meant that the value preserved by
2476 the server_setid option was incorrect.
2477
b01dd148
PH
2478PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2479
6bf342e1
PH
2480PH/09 Installed PCRE release 7.0.
2481
273f34d0
PH
2482PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2483 run for batched SMTP input. It is now run at the start of every message
2484 in the batch. While fixing this I discovered that the process information
2485 (output by running exiwhat) was not always getting set for -bs and -bS
2486 input. This is fixed, and it now also says "batched" for BSMTP.
2487
cf8b11a5
PH
2488PH/11 Added control=no_pipelining.
2489
41c7c167
PH
2490PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2491 patch, slightly modified), and move the expansion of helo_data till after
2492 the connection is made in the smtp transport (so it can use these
2493 values).
2494
9c57cbc0
PH
2495PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2496
f3f065bb
PH
2497PH/14 Added log_selector = +pid.
2498
047bdd8c
PH
2499PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2500
0ce9abe6
PH
2501PH/16 Add ${if forany and ${if forall.
2502
0e22dfd1
PH
2503PH/17 Added dsn_from option to vary the From: line in DSNs.
2504
4c590bd1
PH
2505PH/18 Flush SMTP output before performing a callout, unless control =
2506 no_callout_flush is set.
2507
09945f1e
PH
2508PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2509 was true (the default) a successful delivery failed to delete the retry
2510 item, thus causing premature timeout of the address. The bug is now
2511 fixed.
2512
c51b8e75
PH
2513PH/20 Added hosts_avoid_pipelining to the smtp transport.
2514
e28326d8 2515PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2516 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2517 other ACL rejections are.
2518
75b1493f
PH
2519PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2520 with slight modification.
2521
7c5214ec
PH
2522PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2523 draft, changing the syntax and factoring some duplicate code".
2524
4311097e
PH
2525PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2526 for deliveries of the second and subsequent messages over the same SMTP
2527 connection.
2528
29f89cad
PH
2529PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2530 ${reduce, with only minor "tidies".
2531
5e687460
SC
2532SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2533
c3611384
PH
2534PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2535 expansion side effects.
2536
5a11a7b4
PH
2537PH/27 When a message times out after an over-quota error from an Exim-imposed
2538 quota, the bounce message says "mailbox is full". This message was not
2539 being given when it was a system quota that was exceeded. It now should
2540 be the same.
2541
0e20aff9
MH
2542MH/03 Made $recipients available in local_scan(). local_scan() already has
2543 better access to the recipient list through recipients_list[], but
2544 $recipients can be useful in postmaster-provided expansion strings.
2545
ca86f471
PH
2546PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2547 in the case of a MAIL command with additional options following the
2548 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2549 were accidentally chopped off.
2550
a14e5636
PH
2551PH/29 SMTP synchronization checks are implemented when a command is read -
2552 there is a check that no more input is waiting when there shouldn't be
2553 any. However, for some commands, a delay in an ACL can mean that it is
2554 some time before the response is written. In this time, more input might
2555 arrive, invalidly. So now there are extra checks after an ACL has run for
2556 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2557 pipelining has not been advertised.
2558
ec95d1a6
PH
2559PH/30 MH's patch to allow iscntrl() characters to be list separators.
2560
42855d71
PH
2561PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2562 returned in the SMTP response when smtp_return_error_details was false.
2563 This has been fixed.
2564
57c2c631
PH
2565PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2566 instead of the C I/O that was originally supplied, because problems were
2567 reported on Solaris.
2568
58c01c94
PH
2569PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2570 Exim which did not show up earlier: it was assuming that a call to
2571 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2572 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2573 was a macro that became an assignment, so it seemed to work. This has
2574 changed to a proper function call with a void return, hence the compile
2575 error. Exim's code has been fixed.
2576
dee5a20a
PH
2577PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2578 cpus.
2579
d2ee6114
PH
2580PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2581
b2d5182b
PH
2582PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2583
79749a79
PH
2584PH/37 If a message is not accepted after it has had an id assigned (e.g.
2585 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2586 "Completed" line in the log. When some messages of this type were
2587 selected by exigrep, they were listed as "not completed". Others were
2588 picked up by some special patterns. I have improved the selection
2589 criteria to be more general.
79749a79 2590
c456d9bb
PH
2591PH/38 The host_find_failed option in the manualroute router can now be set
2592 to "ignore", to completely ignore a host whose IP address cannot be
2593 found. If all hosts are ignored, the behaviour is controlled by the new
2594 host_all_ignored option.
2595
cd9868ec
PH
2596PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2597 homing or because of multiple MX records with /mx) generated more than
2598 one IP address, and the following item turned out to be the local host,
2599 all the secondary addresses of the first item were incorrectly removed
2600 from the list, along with the local host and any following hosts (which
2601 is what is supposed to happen).
2602
ebeaf996
PH
2603PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2604 whoever called Exim into the -H file. In the case of the daemon it was
2605 behaving confusingly. When first started, it used values for whoever
2606 started the daemon, but after a SIGHUP it used the Exim user (because it
2607 calls itself on a restart). I have changed the code so that it now always
2608 uses the Exim user.
2609
2679d413
PH
2610PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2611 message are rejected with the same error (e.g. no authentication or bad
2612 sender address), and a DATA command is nevertheless sent (as can happen
2613 with PIPELINING or a stupid MUA), the error message that was given to the
2614 RCPT commands is included in the rejection of the DATA command. This is
2615 intended to be helpful for MUAs that show only the final error to their
2616 users.
2617
84024b72
PH
2618PH/42 Another patch from the Sieve maintainer.
2619
8005d38e
SC
2620SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2621 Eximstats - Fixed some broken HTML links and added missing column headers
2622 (Jez Hancock).
2623 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2624 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2625
3298c6c6
SC
2626SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2627
a43a27c5
PH
2628PH/43 Yet another patch from the Sieve maintainer.
2629
58eb016e 2630PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2631 the response to the final '.' that terminates a message, but only in the
2632 case where the client has not sent further data following the '.'
2633 (unfortunately, this is allowed). However, in many cases there won't be
2634 any further data because there won't be any more messages to send. A call
2635 to select() can be used: if it shows that the input is "ready", there is
2636 either input waiting, or the socket has been closed. An attempt to read
2637 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2638 would have sent an OK response which the client would never have see.
563b63fa
PH
2639 This could lead to message repetition. This fix should cure that, at
2640 least in a lot of common cases.
58eb016e 2641
b43a74ea
PH
2642PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2643 advertised in response to EHLO.
2644
b4ed4da0 2645
5dd1517f
PH
2646Exim version 4.66
2647-----------------
2648
2649PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2650 fixed by 4.65/MH/01 (is this a record?) are fixed:
2651
2652 (i) An empty string was always treated as zero by the numeric comparison
2653 operators. This behaviour has been restored.
2654
2655 (ii) It is documented that the numeric comparison operators always treat
2656 their arguments as decimal numbers. This was broken in that numbers
2657 starting with 0 were being interpreted as octal.
2658
2659 While fixing these problems I realized that there was another issue that
2660 hadn't been noticed. Values of message_size_limit (both the global option
2661 and the transport option) were treated as octal if they started with 0.
2662 The documentation was vague. These values are now always treated as
2663 decimal, and I will make that clear in the documentation.
2664
2665
93cfa765
TK
2666Exim version 4.65
2667-----------------
2668
2669TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2670 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2671 versions. (#438)
2672
d6066548
MH
2673MH/01 Don't check that the operands of numeric comparison operators are
2674 integers when their expansion is in "skipping" mode (fixes bug
2675 introduced by 4.64-PH/07).
2676
4362ff0d
PH
2677PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2678 child addresses, Exim now panics and dies. Previously, because the count
2679 is held in a short int, deliveries were likely to be lost. As such a
2680 large number of recipients for a single message is ridiculous
2681 (performance will be very, very poor), I have chosen to impose a limit
2682 rather than extend the field.
2683
93cfa765 2684
944e9e9c
TF
2685Exim version 4.64
2686-----------------
aa41d2de 2687
21d74bd9
TK
2688TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2689 leftover -K file (the existence of which was triggered by #402).
2690 While we were at it, introduced process PID as part of the -K
2691 filename. This should rule out race conditions when creating
2692 these files.
2693
2694TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2695 processing considerably. Previous code took too long for large mails,
2696 triggering a timeout which in turn triggers #401.
2697
2698TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2699 in the DK code in transports.c. sendfile() is not really portable,
2700 hence the _LINUX specificness.
944e9e9c
TF
2701
2702TF/01 In the add_headers option to the mail command in an Exim filter,
2703 there was a bug that Exim would claim a syntax error in any
2704 header after the first one which had an odd number of characters
2705 in the field name.
2706
2b1c6e3a
PH
2707PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2708 callout verification, Exim cached a "reject" for the entire domain. This
2709 is correct for most verifications, but it is not correct for a recipient
2710 verification with use_sender or use_postmaster set, because in that case
2711 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2712 case of MAIL FROM:<> rejection from other early rejections (e.g.
2713 rejection of HELO). When verifying a recipient using a non-null MAIL
2714 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2715 Whatever the result of the callout, the value of the domain cache is
2716 left unchanged (for any other kind of callout, getting as far as trying
2717 RCPT means that the domain itself is ok).
2718
1f872c80
PH
2719PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2720 gcc 4.1.1 threw up.
2721
2722PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2723 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2724 session, the daemon ignores ECONNECT errors and logs others; it now
2725 ignores EPIPE as well.
2726
d203e649
PH
2727PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2728 (quoted-printable decoding).
2729
cc2ed8f7 2730PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2731 later the small subsequent patch to fix an introduced bug.
f951fd57 2732
ddfcd446
PH
2733PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2734
d45b1de8
PH
2735PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2736
2737PH/08 An error is now given if message_size_limit is specified negative.
2738
38a0a95f 2739PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2740 to be given (somewhat) arbitrary names.
38a0a95f 2741
a2405d83
JJ
2742JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2743 in 4.64-PH/09.
2744
2745JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2746 miscellaneous code fixes
2747
6ea85e9a
PH
2748PH/10 Added the log_reject_target ACL modifier to specify where to log
2749 rejections.
2750
26da7e20
PH
2751PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2752 hostname. This is wrong, because it relates to the incoming message (and
2753 probably the interface on which it is arriving) and not to the outgoing
2754 callout (which could be using a different interface). This has been
2755 changed to use the value of the helo_data option from the smtp transport
2756 instead - this is what is used when a message is actually being sent. If
2757 there is no remote transport (possible with a router that sets up host
2758 addresses), $smtp_active_hostname is used.
6ea85e9a 2759
14aa5a05 2760PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2761 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2762 (a) The code assumed that strncpy() returns a negative number on buffer
2763 overflow, which isn't the case. Replaced with Exim's string_format()
2764 function.
2765 (b) There were several signed/unsigned issues. I just did the minimum
2766 hacking in of casts. There is scope for a larger refactoring.
2767 (c) The code used strcasecmp() which is not a standard C function.
2768 Replaced with Exim's strcmpic() function.
2769 (d) The code set only $1; it now sets $auth1 as well.
2770 (e) A simple test gave the error "authentication client didn't specify
2771 service in request". It would seem that Dovecot has changed its
2772 interface. Fortunately there's a specification; I followed it and
2773 changed what the client sends and it appears to be working now.
2774
ff75a1f7
PH
2775PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2776 decoding.
2777
e6f6568e
PH
2778PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2779 address A is aliased to B and C, where B exists and C does not. Without
2780 -v the output is "A verified" because verification stops after a
2781 successful redirection if more than one address is generated. However,
2782 with -v the child addresses are also verified. Exim was outputting "A
2783 failed to verify" and then showing the successful verification for C,
2784 with its parentage. It now outputs "B failed to verify", showing B's
2785 parentage before showing the successful verification of C.
2786
d6f6e0dc
PH
2787PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2788 look up a TXT record in a specific list after matching in a combined
2789 list.
2790
322050c2
PH
2791PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2792 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2793 they consult the DNS. I had assumed they would set it the way they
2794 wanted; and indeed my experiments on Linux seem to show that in some
2795 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2796 To be on the safe side, however, I have now made the interface to
2797 host_find_byname() similar to host_find_bydns(), with an argument
2798 containing the DNS resolver options. The host_find_byname() function now
2799 sets these options at its start, just as host_find_bydns() does. The smtp
2800 transport options dns_qualify_single and dns_search_parents are passed to
2801 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2802 of host_find_byname() use the default settings of RES_DEFNAMES
2803 (qualify_single) but not RES_DNSRCH (search_parents).
2804
08955dd3
PH
2805PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2806 spool_read_header() do less string testing, by means of a preliminary
2807 switch on the second character of optional "-foo" lines. (This is
2808 overdue, caused by the large number of possibilities that now exist.
2809 Originally there were few.) While I was there, I also converted the
2810 str(n)cmp tests so they don't re-test the leading "-" and the first
2811 character, in the hope this might squeeze out yet more improvement.
2812
1eccaa59
PH
2813PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2814 flag allowing group syntax was set by the header_syntax check but not
2815 turned off, possible causing trouble later; (2) The flag was not being
2816 set at all for the header_verify test, causing "group"-style headers to
2817 be rejected. I have now set it in this case, and also caused header_
2818 verify to ignore an empty address taken from a group. While doing this, I
2819 came across some other cases where the code for allowing group syntax
2820 while scanning a header line wasn't quite right (mostly, not resetting
2821 the flag correctly in the right place). These bugs could have caused
2822 trouble for malformed header lines. I hope it is now all correct.
2823
602e59e5
PH
2824PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2825 with the "reply" argument non-NULL. The code, however (which originally
2826 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2827 but it didn't always do it. This confused somebody who was copying the
2828 code for some other use. I have removed all the tests.
2829
411ef850
PH
2830PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2831 feature that was used to support insecure browsers during the U.S. crypto
2832 embargo. It requires special client support, and Exim is probably the
2833 only MTA that supported it -- and would never use it because real RSA is
2834 always available. This code has been removed, because it had the bad
2835 effect of slowing Exim down by computing (never used) parameters for the
2836 RSA_EXPORT functionality.
2837
7befa435
PH
2838PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2839 authenticator to fail if there's a tab character in the incoming data
2840 (there should never be unless someone is messing about, as it's supposed
2841 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2842 if the connection is using TLS or if the remote IP is the same as the
2843 local IP, and the "valid-client-cert option" if a client certificate has
2844 been verified.
2845
48da4259 2846PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2847 authenticators. This can be used for authorization after authentication
2848 succeeds. (In the case of plaintext, it servers for both authentication
2849 and authorization.)
2850
48da4259
PH
2851PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2852 if any retry times were supplied.
2853
d1d5595c
PH
2854PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2855 connection, where there is no client IP address to check. In this
2856 situation, the verify now always succeeds.
2857
0ef732d9
PH
2858PH/25 Applied John Jetmore's -Mset patch.
2859
328895cc
PH
2860PH/26 Added -bem to be like -Mset, but loading a message from a file.
2861
fd700877
PH
2862PH/27 In a string expansion for a processed (not raw) header when multiple
2863 headers of the same name were present, leading whitespace was being
2864 removed from all of them, but trailing whitespace was being removed only
2865 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2866 before concatenation. Completely empty headers in a concatenation (as
2867 before) are ignored.
fd700877 2868
8dce1a6f
PH
2869PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2870 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2871
17af4a17
PH
2872PH/29 [Removed. This was a change that I later backed out, and forgot to
2873 correct the ChangeLog entry (that I had efficiently created) before
2874 committing the later change.]
f6c332bd
PH
2875
2876PH/30 Exim was sometimes attempting to deliver messages that had suffered
2877 address errors (4xx response to RCPT) over the same connection as other
2878 messages routed to the same hosts. Such deliveries are always "forced",
2879 so retry times are not inspected. This resulted in far too many retries
2880 for the affected addresses. The effect occurred only when there were more
2881 hosts than the hosts_max_try setting in the smtp transport when it had
2882 the 4xx errors. Those hosts that it had tried were not added to the list
2883 of hosts for which the message was waiting, so if all were tried, there
2884 was no problem. Two fixes have been applied:
2885
2886 (i) If there are any address or message errors in an SMTP delivery, none
2887 of the hosts (tried or untried) are now added to the list of hosts
2888 for which the message is waiting, so the message should not be a
2889 candidate for sending over the same connection that was used for a
2890 successful delivery of some other message. This seems entirely
2891 reasonable: after all the message is NOT "waiting for some host".
2892 This is so "obvious" that I'm not sure why it wasn't done
2893 previously. Hope I haven't missed anything, but it can't do any
2894 harm, as the worst effect is to miss an optimization.
2895
2896 (ii) If, despite (i), such a delivery is accidentally attempted, the
2897 routing retry time is respected, so at least it doesn't keep
2898 hammering the server.
2899
c1114884
PH
2900PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2901 in ${readsocket because some servers need this prod.
2902
7a0743eb
PH
2903PH/32 Added some extra debug output when updating a wait-xxx database.
2904
0d85fa3f
PH
2905PH/33 The hint "could be header name not terminated by colon", which has been
2906 given for certain expansion errors for a long time, was not being given
2907 for the ${if def:h_colon_omitted{... case.
2908
1bf43b78
PH
2909PH/34 The spec says: "With one important exception, whenever a domain list is
2910 being scanned, $domain contains the subject domain." There was at least
2911 one case where this was not true.
2912
520de300
PH
2913PH/35 The error "getsockname() failed: connection reset by peer" was being
2914 written to the panic log as well as the main log, but it isn't really
2915 panic-worthy as it just means the connection died rather early on. I have
2916 removed the panic log writing for the ECONNRESET error when getsockname()
2917 fails.
2918
48c7f9e2
PH
2919PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2920 runs only) independently of the message's sender address. This meant
2921 that, if the 4xx error was in fact related to the sender, a different
2922 message to the same recipient with a different sender could confuse
4c04137d 2923 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2924 server, but other circumstances could also provoke similar problems.
2925 I have changed the default so that the retry time for these errors is now
2926 based a combination of the sender and recipient addresses. This change
2927 can be overridden by setting address_retry_include_sender=false in the
2928 smtp transport.
2929
99ea1c86
PH
2930PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2931 remote server are returned as part of bounce messages. This was not
2932 happening for LMTP over a pipe (the lmtp transport), but now it is the
2933 same for both kinds of LMTP.
2934
a2042e78
PH
2935PH/38 Despite being documented as not happening, Exim was rewriting addresses
2936 in header lines that were in fact CNAMEs. This is no longer the case.
2937
4fbcfc2e
PH
2938PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2939 and queue runs started by the daemon processed all messages. This has
2940 been fixed so that -R and -S can now usefully be given with -q<time>.
2941
aa41d2de
PH
2942PH/40 Import PCRE release 6.7 (fixes some bugs).
2943
af561417
PH
2944PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2945
3cc66b45
PH
2946PH/42 Give an error if -q is specified more than once.
2947
194cc0e4
PH
2948PH/43 Renamed the variables $interface_address and $interface_port as
2949 $received_ip_address and $received_port, to make it clear that these
2950 values apply to message reception, and not to the outgoing interface when
2951 a message is delivered. (The old names remain recognized, of course.)
2952
a401ddaa
PH
2953PH/44 There was no timeout on the connect() call when using a Unix domain
2954 socket in the ${readsocket expansion. There now is.
2955
4e88a19f
PH
2956PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2957 be meaningful with "accept".
2958
d7d7b289
SC
2959SC/01 Eximstats V1.43
2960 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2961
2962SC/02 Eximstats V1.44
2963 Use a glob alias rather than an array ref in the generated
2964 parser. This improves both readability and performance.
2965
2966SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2967 Collect SpamAssassin and rejection statistics.
2968 Don't display local sender or destination tables unless
2969 there is data to show.
2970 Added average volumes into the top table text output.
2971
2972SC/04 Eximstats V1.46
2973 Collect data on the number of addresses (recipients)
2974 as well as the number of messages.
2975
2976SC/05 Eximstats V1.47
2977 Added 'Message too big' to the list of mail rejection
2978 reasons (thanks to Marco Gaiarin).
2979
2980SC/06 Eximstats V1.48
2981 Mainlog lines which have GMT offsets and are too short to
2982 have a flag are now skipped.
2983
2984SC/07 Eximstats V1.49 (Alain Williams)
2985 Added the -emptyok flag.
2986
2987SC/08 Eximstats V1.50
2988 Fixes for obtaining the IP address from reject messages.
2989
0ea2a468
JJ
2990JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2991 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 2992 whitespace changes from 4.64-PH/27
0ea2a468
JJ
2993
2994JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2995 match 4.64-PH/13
2996
2997JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2998 are found, allow negative numbers in numeric criteria)
2999
3000JJ/06 exipick.20061117.2, added new $message_body_missing variable
3001
3002JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
3003 to match changes made in 4.64-PH/43
3004
8a10f5a4
PH
3005PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
3006
30e18802
PH
3007PH/47 Put in an explicit test for a DNS lookup of an address record where the
3008 "domain" is actually an IP address, and force a failure. This locks out
3009 those revolvers/nameservers that support "A-for-A" lookups, in
3010 contravention of the specifications.
3011
55728a4f
PH
3012PH/48 When a host name was looked up from an IP address, and the subsequent
3013 forward lookup of the name timed out, the host name was left in
3014 $sender_host_name, contrary to the specification.
d7d7b289 3015
d7837193
PH
3016PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
3017 restricted to single-key lookups, Exim was not diagnosing an error if
3018 * or *@ was used with a query-style lookup.
3019
87054a31
PH
3020PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
3021
ea2c01d2
MH
3022MH/01 local_scan ABI version incremented to 1.1. It should have been updated
3023 long ago, but noone interested enough thought of it. Let's just say that
3024 the "1.1" means that there are some new functions that weren't there at
3025 some point in the past.
3026
e4fa6968
PH
3027PH/51 Error processing for expansion failure of helo_data from an smtp
3028 transport during callout processing was broken.
3029
56f5d9bd
PH
3030PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
3031 tested/used via the -bh/-bhc/-bs options.
3032
922e1c28
PH
3033PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
3034 bug, fixed in subsequent PCRE releases).
3035
21eb6e72
PH
3036PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
3037 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
3038
a0540757
PH
3039PH/55 Check for a ridiculously long file name in exim_dbmbuild.
3040
944e9e9c 3041
478be7b0
SC
3042Exim version 4.63
3043-----------------
3044
3045SC/01 Use a glob alias rather than an array ref in eximstats generated
3046 parser. This improves both readability and performance.
3047
3048SC/02 Collect SpamAssassin and rejection statistics in eximstats.
3049 Don't display local sender or destination tables in eximstats unless
3050 there is data to show.
3051 Added average volumes into the eximstats top table text output.
3052
3053SC/03 Collect data on the number of addresses (recipients) as well
3054 as the number of messages in eximstats.
3055
2b965a65
TF
3056TF/01 Correct an error in the documentation for the redirect router. Exim
3057 does (usually) call initgroups() when daemonizing.
478be7b0 3058
45b91596
PH
3059TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
3060 with consistent privilege compared to when running as a daemon.
478be7b0 3061
c59f5781
TF
3062TF/03 Note in the spec that $authenticated_id is not set for local
3063 submissions from trusted users.
3064
90fc3069
TF
3065TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
3066 Thanks to Dean Brooks <dean@iglou.com> for the patch.
3067
6083aca0
TF
3068TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
3069 by adding some example configuration directives to the default
3070 configuration file. A little bit of work is required to uncomment the
3071 directives and define how usernames and passwords are checked, but
3072 there is now a framework to start from.
3073
765b530f
PH
3074PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
3075 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
3076 without this. I don't know how relevant this is to other LDAP libraries.
3077
4e167a8c
PH
3078PH/02 Add the verb name to the "unknown ACL verb" error.
3079
4608d683
PH
3080PH/03 Magnus Holmgren's patch for filter_prepend_home.
3081
b8dc3e4a
PH
3082PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
3083
5418e93b
PH
3084PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
3085 directory not expanded when it should be if an expanded home directory
3086 was set for the address (which is overridden by the transport).
3087
b4a9bda2
PH
3088PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
3089 libradius.
3090
45b91596
PH
3091PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
3092 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
3093 because it is too late at that time, and has no effect.
3094
5547e2c5
PH
3095PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
3096 security issue with \' (bugzilla #107). I could not use the
3097 PQescapeStringConn() function, because it needs a PGconn value as one of
3098 its arguments.
3099
dbcef0ea
PH
3100PH/08 When testing addresses using -bt, indicate those final addresses that
3101 are duplicates that would not cause an additional delivery. At least one
3102 person was confused, thinking that -bt output corresponded to deliveries.
3103 (Suppressing duplicates isn't a good idea as you lose the information
3104 about possibly different redirections that led to the duplicates.)
3105
25257489
PH
3106PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
3107 systems where poll() doesn't work, in particular OS X.
3108
c816d124
PH
3109PH/10 Added more information to debugging output for retry time not reached.
3110
a9ccd69a
PH
3111PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
3112 operations in malware.c.
3113
75fa1910
PH
3114PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3115 signatures.
3116
a7d7aa58
PH
3117PH/13 If write_rejectlog was set false when logging was sent to syslog with
3118 syslog_duplication set false, log lines that would normally be written
3119 both the the main log and to the reject log were not written to syslog at
3120 all.
3121
42119b09
PH
3122PH/14 In the default configuration, change the use of "message" in ACL warn
3123 statements to "add_header".
3124
41609df5
PH
3125PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3126 not followed by a command (e.g. "seen endif").
3127
a5bd321b
PH
3128PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3129 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3130 latter.
3131
e85a7ad5 3132PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3133 so that it is now:
3134
e85a7ad5
PH
3135 ${if or { \
3136 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3137 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3138 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3139 }{no}{yes}}
3140
e85a7ad5
PH
3141 The Auto-Submitted: and various List- headers are standardised, whereas I
3142 don't think Precedence: ever was.
5dff5817 3143
d8fe1c03
PH
3144PH/18 Refactored debugging code in route_finduser() to show more information,
3145 in particular, the error code if getpwnam() issues one.
3146
16282d2b
PH
3147PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3148 This is apparently needed in addition to the PH/07 change above to avoid
3149 any possible encoding problems.
3150
35d40a98
PH
3151PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3152 but not after initializing Perl.
3153
034d99ab
PH
3154PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3155 output them only if debugging. By default they are written stderr,
3156 apparently, which is not desirable.
3157
6ec97b1b
PH
3158PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3159 queries.
3160
e22ca4ac
JJ
3161JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3162 --not options
3163
3164JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3165
33d73e3b
PH
3166PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3167 authenticated or an ident call has been made. Suppress the default
3168 values for $authenticated_id and $authenticated_sender (but permit -oMai
3169 and -oMas) when testing with -bh.
3170
9ecb03f3
PH
3171PH/24 Re-jigged the order of the tests in the default configuration so that the
3172 tests for valid domains and recipients precede the DNS black list and CSA
3173 tests, on the grounds that those ones are more expensive.
3174
084efe8d
PH
3175PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3176 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3177 This bug exists in every version of Exim that I still have, right back to
3178 0.12.
3179
366fc9f0
PH
3180PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3181 However, an attempt to turn on case-sensitivity in a regex key by
3182 including (?-i) didn't work because the subject string was already
3183 lowercased, and the effects were non-intuitive. It turns out that a
3184 one-line patch can be used to allow (?-i) to work as expected.
3185
c59f5781 3186
c887c79e
TF
3187Exim version 4.62
3188-----------------
3189
3190TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3191 other effects) broke the use of negated acl sub-conditions.
3192
1cce3af8
PH
3193PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3194 patch).
3195
afb3eaaf
PH
3196PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3197 "Deny" causes Exim to reject the incoming connection with a 554 error.
3198 Unfortunately, if there is a major crisis, such as a disk failure,
3199 tcp-wrappers gives "deny", whereas what one would like would be some
3200 kind of temporary error. A kludge has been added to help with this.
3201 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3202 554 error is used if errno is still zero or contains ENOENT (which occurs
3203 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3204 451 error is used.
3205
e173618b
PH
3206PH/03 Add -lutil to the default FreeBSD LIBS setting.
3207
dd16e114
PH
3208PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3209 errors. Otherwise a message that provokes a temporary error (when other
3210 messages do not) can cause a whole host to time out.
3211
f7fd3850
PH
3212PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3213 addresses were routed directly to files or pipes from a redirect router.
3214 File deliveries just didn't batch; pipe deliveries might have suffered
3215 odd errors.
3216
d87df92c
PH
3217PH/06 A failure to get a lock for a hints database would erroneously always say
3218 "Failed to get write lock", even when it was really a read lock.
3219
7e9f683d
PH
3220PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3221 of 0600. This has been changed to use the value of the lockfile_mode
3222 option (which defaults to 0600).
3223
bfad5236
PH
3224PH/08 Applied small patch from the Sieve maintainer.
3225
01c490df
PH
3226PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3227 folder from quota calculations, a direct delivery into this folder messed
3228 up the contents of the maildirsize file. This was because the regex was
3229 used only to exclude .Trash (or whatever) when the size of the mailbox
3230 was calculated. There was no check that a delivery was happening into an
3231 excluded directory. This bug has been fixed by ignoring all quota
3232 processing for deliveries into excluded directories.
3233
d6629cdc
PH
3234PH/10 Added the maildirfolder_create_regex option to appendfile.
3235
1cce3af8 3236
214e2000
PH
3237Exim version 4.61
3238-----------------
3239
3240PH/01 The code for finding all the local interface addresses on a FreeBSD
3241 system running IPv6 was broken. This may well have applied to all BSD
3242 systems, as well as to others that have similar system calls. The broken
3243 code found IPv4 interfaces correctly, but gave incorrect values for the
3244 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3245 that it would not match correctly against @[] and not recognize the IPv6
3246 addresses as local.
3247
f9daeae0
PH
3248PH/02 The ipliteral router was not recognizing addresses of the form user@
3249 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3250
7e66e54d
PH
3251PH/03 Added disable_ipv6.
3252
c8ea1597
PH
3253PH/04 Changed $reply_address to use the raw form of the headers instead of the
3254 decoded form, because it is most often used to construct To: headers
3255 lines in autoreplies, and the decoded form may well be syntactically
3256 invalid. However, $reply_address has leading white space removed, and all
3257 newlines turned into spaces so that the autoreply transport does not
3258 grumble.
3259
911f6fde
PH
3260PH/05 If group was specified without a user on a router, and no group or user
3261 was specified on a transport, the group from the router was ignored.