DKIM: use string-allocate facilities for DNS lookup
[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
d4fd1b83 8Exim version 4.91
459fca58
JH
9-----------------
10
11JH/01 Replace the store_release() internal interface with store_newblock(),
12 which internalises the check required to safely use the old one, plus
13 the allocate and data copy operations duplicated in both (!) of the
14 extant use locations.
15
944e8b37
JH
16JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
17 modifier. This matches the restriction on the commandline.
18
bbfb5dcd
JH
19JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
20 Previously only the last row was returned.
21
a05d3e34
JH
22JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
23 we assumed that tags in the header were well-formed, and parsed the
24 element content after inspecting only the first char of the tag.
25 Assumptions at that stage could crash the receive process on malformed
26 input.
27
ce93c6d8
JH
28JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
29 While running the DKIM ACL we operate on the Permanent memory pool so that
30 variables created with "set" persist to the DATA ACL. Also (at any time)
31 DNS lookups that fail create cache records using the Permanent pool. But
32 expansions release any allocations made on the current pool - so a dnsdb
33 lookup expansion done in the DKIM ACL releases the memory used for the
34 DNS negative-cache, and bad things result. Solution is to switch to the
35 Main pool for expansions.
36 While we're in that code, add checks on the DNS cache during store_reset,
37 active in the testsuite.
38 Problem spotted, and debugging aided, by Wolfgang Breyha.
39
2577f55f
JH
40JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
41 When none of the hosts presented to a transport match an already-open
42 connection, close it and proceed with the list. Previously we would
43 queue the message. Spotted by Lena with Yahoo, probably involving
44 round-robin DNS.
45
5b6f7658
JH
46JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
47 Previously a spurious "250 OK id=" response was appended to the proper
48 failure response.
49
c11d665d
JH
50JH/08 The "support for" informational output now, which built with Content
51 Scanning support, has a line for the malware scanner interfaces compiled
52 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
53
54JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
55 by the template makefile "src/EDITME". The "STREAM" support for an older
56 ClamAV interface method is removed.
c11d665d 57
ba0e37b1
JH
58JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
59 rows affected is given instead).
60
96508de1
JH
61JH/11 The runtime Berkeley DB library version is now additionally output by
62 "exim -d -bV". Previously only the compile-time version was shown.
63
bbfb5dcd 64
acfc18c3
PP
65Exim version 4.90
66-----------------
67
68JH/01 Rework error string handling in TLS interface so that the caller in
69 more cases is responsible for logging. This permits library-sourced
70 string to be attached to addresses during delivery, and collapses
71 pairs of long lines into single ones.
72
856d1e16
PP
73PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
74 during configuration. Wildcards are allowed and expanded.
75
b9df1829
JH
76JH/02 Rework error string handling in DKIM to pass more info back to callers.
77 This permits better logging.
78
875512a3
JH
79JH/03 Rework the transport continued-connection mechanism: when TLS is active,
80 do not close it down and have the child transport start it up again on
81 the passed-on TCP connection. Instead, proxy the child (and any
82 subsequent ones) for TLS via a unix-domain socket channel. Logging is
83 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 84 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 85
fc3f96af
JH
86JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
87 identical IP addresses on different listening ports. Will also affect
88 "exiwhat" output.
89
98913c8e
BK
90PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
91 add noisy ifdef guards to special-case this sillyness.
92 Patch from Bernd Kuhls.
93
8d909960
JH
94JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
95 than 255 are no longer allowed.
96
7006ee24
JH
97JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
98 Disable the session-cache too, which might reduce our load. Since we
99 currrectly use a new context for every connection, both as server and
100 client, there is no benefit for these.
101 GnuTLS appears to not support tickets server-side by default (we don't
102 call gnutls_session_ticket_enable_server()) but client side is enabled
103 by default on recent versions (3.1.3 +) unless the PFS priority string
104 is used (3.2.4 +).
105
6e411084
PP
106PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
107 <https://reproducible-builds.org/specs/source-date-epoch/>.
108
4c2471ca
JH
109JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
110 the check for any unsuccessful recipients did not notice the limit, and
111 erroneously found still-pending ones.
112
4e910c01
JH
113JH/08 Pipeline CHUNKING command and data together, on kernels that support
114 MSG_MORE. Only in-clear (not on TLS connections).
115
42055a33
JH
116JH/09 Avoid using a temporary file during transport using dkim. Unless a
117 transport-filter is involved we can buffer the headers in memory for
118 creating the signature, and read the spool data file once for the
119 signature and again for transmission.
120
eeb35890
JH
121JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
122 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 123 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 124
b7d3afcf
JH
125JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
126 case where the routing stage had gathered several addresses to send to
127 a host before calling the transport for the first, we previously failed
128 to close down TLS in the old transport process before passing the TCP
129 connection to the new process. The new one sent a STARTTLS command
130 which naturally failed, giving a failed delivery and bloating the retry
131 database. Investigation and fix prototype from Wolfgang Breyha.
132
40525d07
JH
133JH/12 Fix check on SMTP command input synchronisation. Previously there were
134 false-negatives in the check that the sender had not preempted a response
135 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 136 awareness of the SMTP input buffering.
40525d07 137
f33875c3
PP
138PP/04 Add commandline_checks_require_admin option.
139 Exim drops privileges sanely, various checks such as -be aren't a
140 security problem, as long as you trust local users with access to their
141 own account. When invoked by services which pass untrusted data to
142 Exim, this might be an issue. Set this option in main configuration
143 AND make fixes to the calling application, such as using `--` to stop
144 processing options.
145
a5ffa9b4
JH
146JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
147 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
148 responses to those, into a single TLS record each way (this usually means
149 a single packet). As a side issue, smtp_enforce_sync now works on TLS
150 connections.
925ac8e4 151
6600985a
PP
152PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
153 affects you only if you're dancing at the edge of the param size limits.
154 If you are, and this message makes sense to you, then: raise the
155 configured limit or use OpenSSL 1.1. Nothing we can do for older
156 versions.
157
ac4d558b
JH
158JH/14 For the "sock" variant of the malware scanner interface, accept an empty
159 cmdline element to get the documented default one. Previously it was
160 inaccessible.
161
e69636bc
JH
162JH/15 Fix a crash in the smtp transport caused when two hosts in succession
163 are unsuable for non-message-specific reasons - eg. connection timeout,
164 banner-time rejection.
165
a843a57e
JH
166JH/16 Fix logging of delivery remote port, when specified by router, under
167 callout/hold.
168
8e041ae0
PP
169PP/06 Repair manualroute's ability to take options in any order, even if one
170 is the name of a transport.
833c70bc
PP
171 Fixes bug 2140.
172
35a04365
HSHR
173HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
174
4226691b
JH
175JH/17 Change the list-building routines interface to use the expanding-string
176 triplet model, for better allocation and copying behaviour.
177
d185889f
JH
178JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
179 Previously it was constructed the first time a possibly-matching string
180 was met in the configuration file input during startup; now it is done
181 during compilation.
182
0a6c178c
JH
183JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
184 compatible one, to avoid the (poorly documented) possibility of a config
185 file in the working directory redirecting the DB files, possibly correpting
02745400 186 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 187
fae8970d
JH
188JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
189 cache-hot. Previously, although the result was properly cached, the
190 initial verify call returned a defer.
191
ad1a76fe 192JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
193 the main verify for receipient in uncached-mode.
194
ad1a76fe
JH
195JH/22 Retire historical build files to an "unsupported" subdir. These are
196 defined as "ones for which we have no current evidence of testing".
197
135e9496
JH
198JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
199 if present. Previously it was ignored.
200
f2ed27cf
JH
201JH/24 Start using specified-initialisers in C structure init coding. This is
202 a C99 feature (it's 2017, so now considered safe).
203
7eb0e5d2
JH
204JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
205 if was a fixed-sized field and bitmask ops via macros; it is now more
206 extensible.
207
4f9f4be4
208PP/07 GitHub PR 56: Apply MariaDB build fix.
209 Patch provided by Jaroslav Škarvada.
210
dc4de9cc
PP
211PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
212 during Coverity cleanups [4.87 JH/47]
213 Diagnosis and fix provided by Michael Fischer v. Mollard.
214
ea18931d
JH
215JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
216 the right size to place the terminating semicolon on its own folded
217 line, the header hash was calculated to an incorrect value thanks to
218 the (relaxed) space the fold became.
219
2cee425a
HSHR
220HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
221 and confused the parent.
222
848214f7
JH
223JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
224 which could crash as a result. This could lead to undeliverable messages.
225
9e0ed81f
JH
226JH/28 Logging: "next input sent too soon" now shows where input was truncated
227 for log purposes.
228
2540f2f8
JH
229JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
230 matters on fast-turnover and PID-randomising systems, which were getting
231 out-of-order delivery.
232
e5ab0ba9
JH
233JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
234 a possibly-overlapping copy. The symptom was that "Remote host closed
235 connection in response to HELO" was logged instead of the actual 4xx
236 error for the HELO.
237
e99a3a6c
JH
238JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
239 Previously only that bufferd was discarded, resulting in SYMTP command
240 desynchronisation.
241
18067c75
JH
242JH/32 DKIM: when a message has multiple signatures matching an identity given
243 in dkim_verify_signers, run the dkim acl once for each. Previously only
244 one run was done. Bug 2189.
245
72934ba7
JH
246JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
247 "panic the current process" to "deliberately defer". The panic log is
248 still written with the problem list name; the mail and reject logs now
249 get a temp-reject line for the message that was being handled, saying
250 something like "domains check lookup or other defer". The SMTP 451
251 message is still "Temporary local problem".
252
625667b6
JH
253JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
254 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
255 freed. CVE-2017-16943.
256
257HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
258 from SMTP input. Previously it was always done; now only done for DATA
259 and not BDAT commands. CVE-2017-16944.
625667b6 260
d21bf202
JH
261JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
262 to the message (such as an overlong header line). Previously this was
263 not done and we did not exit BDAT mode. Followon from the previous item
264 though a different problem.
265
acfc18c3 266
fd047340 267Exim version 4.89
acfc18c3 268-----------------
4c57a40e 269
9427e879 270JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 271 than -2003 did; needs libidn2 in addition to libidn.
fd047340 272
7b283890
JH
273JH/02 The path option on a pipe transport is now expanded before use.
274
4c57a40e
PP
275PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
276 Patch provided by "Björn", documentation fix added too.
277
5d036699
JH
278JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
279 missing a wire-to-host endian conversion.
280
f4630439
JH
281JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
282 close after a BDAT command line could be taken as a following command,
283 giving a synch failure. Fix by only checking for synch immediately
284 before acknowledging the chunk.
285
f988ce57
JS
286PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
287 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
288 macro. Patches provided by Josh Soref.
289
bd8fbe36
JH
290JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
291 Previously we did not; the RFC seems ambiguous and VRFY is not listed
292 by IANA as a service extension. However, John Klensin suggests that we
293 should.
294
295JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
296 the dkim code may be unix-mode line endings rather than smtp wire-format
297 CRLF, so prepend a CR to any bare LF.
fd047340 298
bd8fbe36 299JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
300 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
301
bd8fbe36
JH
302JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
303 the first were themselves being wrongly included in the feed into dkim
304 processing; with most chunk sizes in use this resulted in an incorrect
305 body hash calculated value.
306
eea19017
JH
307JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
308 DKIM signature block, for verification. Although advised against by
309 standards it is specifically not ruled illegal.
310
44e6651b
JH
311JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
312
313JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
314 missing a body hash (the bh= tag).
315
316JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
317 It seems that HAProxy sends the Proxy Protocol information in clear and
318 only then does a TLS startup, so do the same.
319
320JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
321 TCP connections (such as for Spamd) unless the daemon successfully set
322 Fast Open mode on its listening sockets. This fixes breakage seen on
323 too-old kernels or those not configured for Fast Open, at the cost of
324 requiring both directions being enabled for TFO, and TFO never being used
325 by non-daemon-related Exim processes.
326
327JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
328 endings, at least on the first header line. Try to canonify any that get
329 past that check, despite the cost.
330
b6040544
JH
331JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
332 now limited to an arbitrary five deep, while parsing addresses with the
333 strip_excess_angle_brackets option enabled.
334
f700ea4d
PP
335PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
336 instead leave the unprompted TLS handshake in socket buffer for the
337 TLS library to consume.
338
da88acae
PP
339PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
340
f6ef9370
PP
341PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
342
90341c71
JH
343JH/16 Drop variables when they go out of scope. Memory management drops a whole
344 region in one operation, for speed, and this leaves assigned pointers
345 dangling. Add checks run only under the testsuite which checks all
346 variables at a store-reset and panics on a dangling pointer; add code
347 explicitly nulling out all the variables discovered. Fixes one known
348 bug: a transport crash, where a dangling pointer for $sending_ip_address
349 originally assigned in a verify callout, is re-used.
350
1ec2ab36
PP
351PP/06 Drop '.' from @INC in various Perl scripts.
352
353PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
354
355PP/08 Reduce a number of compilation warnings under clang; building with
356 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
357 should be warning-free.
358
8b2b9480
PP
359JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
360
361HS/01 Fix portability problems introduced by PP/08 for platforms where
362 realloc(NULL) is not equivalent to malloc() [SunOS et al].
363
d953610f
HSHR
364HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
365 chunk. This allows us to accept broken chunked messages. We need a more
366 general solution here.
367
7dc5f827
PP
368PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
369 already-broken messages in the queue.
370
4bb432cb
PP
371JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
372
3b1a84c8
PP
373JH/19 Fix reference counting bug in routing-generated-address tracking.
374
902fbd69 375
8d042305
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376Exim version 4.88
377-----------------
4c57a40e 378
9094b84b
JH
379JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
380 supports it and a size is available (ie. the sending peer gave us one).
8d042305 381
03d5892b
JH
382JH/02 The obsolete acl condition "demime" is removed (finally, after ten
383 years of being deprecated). The replacements are the ACLs
384 acl_smtp_mime and acl_not_smtp_mime.
385
4b0fe319
JH
386JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
387 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
388 or even an in-clear connection were permitted. Now, if the host lookup
389 was dnssec and dane was requested then the host is only used if the
390 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
391 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
392 if one fails this test.
393 This means that a poorly-configured remote DNS will make it incommunicado;
394 but it protects against a DNS-interception attack on it.
395
789f8a4f
JH
396JH/04 Bug 1810: make continued-use of an open smtp transport connection
397 non-noisy when a race steals the message being considered.
398
23bb6982 399JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 400 self-signed certificate for inbound TLS connections.
23bb6982 401
0bd1b1ed 402JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 403 in rewrites and routers.
0bd1b1ed 404
20b9a2dc
JH
405JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
406 and logged a warning sing 4.83; now they are a configuration file error.
407
05392bbc
JH
408JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
409 (lacking @domain). Apply the same qualification processing as RCPT.
410
1a6230a3
JH
411JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
412
cfab9d68
JH
413JH/10 Support ${sha256:} applied to a string (as well as the previous
414 certificate).
415
98c82a3d
JH
416JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
417 a cutthrough deliver is pending, as we always want to make a connection.
418 This also avoids re-routing the message when later placing the cutthrough
419 connection after a verify cache hit.
420 Do not update it with the verify result either.
421
422JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
423 when routing results in more than one destination address.
424
ae8386f0
JH
425JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
426 signing (which inhibits the cutthrough capability). Previously only
427 the presence of an option was tested; now an expansion evaluating as
428 empty is permissible (obviously it should depend only on data available
429 when the cutthrough connection is made).
430
0d9fa8c0
JH
431JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
432 the relevant preceding SMTP command did not note the pipelining mode.
433
3581f321
JH
434JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
435 Previously they were not counted.
436
ef3a1a30
JH
437JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
438 as one having no matching records. Previously we deferred the message
439 that needed the lookup.
440
4c04137d 441JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
442 distinguished as "(=".
443
1435d4b2
JH
444JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
445 for missing MX records. Previously it only worked for missing A records.
446
eea0defe
JB
447JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
448
449JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
450 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 451
4c04137d 452JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
453 even for a "none" policy. Patch from Tony Meyer.
454
1c788856
JH
455JH/22 Fix continued use of a connection for further deliveries. If a port was
456 specified by a router, it must also match for the delivery to be
457 compatible.
458
e3b1f624
JH
459JH/23 Bug 1874: fix continued use of a connection for further deliveries.
460 When one of the recipients of a message was unsuitable for the connection
461 (has no matching addresses), we lost track of needing to mark it
462 deferred. As a result mail would be lost.
463
a57ce043
JH
464JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
465
f59aaaaa 466JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
467 takes up less space and should be simpler to maintain. Merge the ACL
468 condition decode tables also, with similar effect.
d7bed771 469
d1f9fb42
JH
470JH/26 Fix problem with one_time used on a redirect router which returned the
471 parent address unchanged. A retry would see the parent address marked as
472 delivered, so not attempt the (identical) child. As a result mail would
473 be lost.
474
92b0827a
JH
475JH/27 Fix a possible security hole, wherein a process operating with the Exim
476 UID can gain a root shell. Credit to http://www.halfdog.net/ for
477 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
478 itself :(
479
ddf1b11a
JH
480JH/28 Enable {spool,log} filesystem space and inode checks as default.
481 Main config options check_{log,spool}_{inodes,space} are now
482 100 inodes, 10MB unless set otherwise in the configuration.
483
3cc3f762
JH
484JH/29 Fix the connection_reject log selector to apply to the connect ACL.
485 Previously it only applied to the main-section connection policy
486 options.
487
ae5afa61
JH
488JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
489
317e40ac
PP
490PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
491 by me. Added RFC7919 DH primes as an alternative.
492
8b0fb68e
PP
493PP/02 Unbreak build via pkg-config with new hash support when crypto headers
494 are not in the system include path.
495
ad7fc6eb 496JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 497 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
498 Exim did stdio operations after fclose. This was exposed by a recent
499 change which nulled out the file handle after the fclose.
ad7fc6eb 500
ee5b1e28
JH
501JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
502 signed directly by the cert-signing cert, rather than an intermediate
503 OCSP-signing cert. This is the model used by LetsEncrypt.
504
5ddc9771
JH
505JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
506
8d73599f
JH
507HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
508 an incoming connection.
509
446415f5
HSHR
510HS/02 Bug 1802: Do not half-close the connection after sending a request
511 to rspamd.
512
8e53a4fc
HSHR
513HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
514 fallback to "prime256v1".
8d042305 515
87cb4a16 516JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 517 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
518
519
0d9b78be
JH
520Exim version 4.87
521-----------------
4c57a40e 522
82d14d6a
JH
523JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
524 and 3.4.4 - once the server is enabled to respond to an OCSP request
525 it does even when not requested, resulting in a stapling non-aware
526 client dropping the TLS connection.
0d9b78be 527
6c6d6e48
TF
528TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
529 support variable-length bit vectors. No functional change.
530
ac881e27
TF
531TF/02 Improve the consistency of logging incoming and outgoing interfaces.
532 The I= interface field on outgoing lines is now after the H= remote
533 host field, same as incoming lines. There is a separate
534 outgoing_interface log selector which allows you to disable the
535 outgoing I= field.
536
c8899c20
JH
537JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
538 If not running log_selector +smtp_connection the mainlog would be held
539 open indefinitely after a "too many connections" event, including to a
540 deleted file after a log rotate. Leave the per net connection logging
541 leaving it open for efficiency as that will be quickly detected by the
542 check on the next write.
543
f1b81d81
HSHR
544HS/01 Bug 1671: Fix post transport crash.
545 Processing the wait-<transport> messages could crash the delivery
546 process if the message IDs didn't exist for some reason. When
547 using 'split_spool_directory=yes' the construction of the spool
548 file name failed already, exposing the same netto behaviour.
549
f38917cc
JH
550JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
551 mime_regex ACL conditions.
552
895fbaf2
JH
553JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
554 to DSN fail messages (bounces): remote IP, remote greeting, remote response
555 to HELO, local diagnostic string.
556
805bb5c3
JH
557JH/05 Downgrade message for a TLS-certificate-based authentication fail from
558 log line to debug. Even when configured with a tls authenticator many
559 client connections are expected to not authenticate in this way, so
560 an authenticate fail is not an error.
561
56c2a7be
HSHR
562HS/02 Add the Exim version string to the process info. This way exiwhat
563 gives some more detail about the running daemon.
564
4c04137d 565JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
566 matter for fast-change records such as DNSBLs.
567
6f6dedcc
JH
568JH/07 Bug 1678: Always record an interface option value, if set, as part of a
569 retry record, even if constant. There may be multiple transports with
570 different interface settings and the retry behaviour needs to be kept
571 distinct.
572
0f557e90
JH
573JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
574
575JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
576
ec0eb1a3
JH
577JH/10 Bug 840: fix log_defer_output option of pipe transport
578
41e93589
JH
579JH/11 Bug 830: use same host for all RCPTS of a message, even under
580 hosts_randomize. This matters a lot when combined with mua_wrapper.
581
98b98887 582JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
583 ${quote_pgsql:<string>} operator.
584
98b98887
JH
585JH/13 Bug 1708: avoid misaligned access in cached lookup.
586
858e91c2
JH
587JH/14 Change header file name for freeradius-client. Relevant if compiling
588 with Radius support; from the Gentoo tree and checked under Fedora.
589
590JH/15 Bug 1712: Introduce $prdr_requested flag variable
591
6ff55e50
JH
592JH/16 Bug 1714: Permit an empty string as expansion result for transport
593 option transport_filter, meaning no filtering.
594
3b957582
JB
595JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
596
23f3dc67
JH
597JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
598 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 599 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
600 If a server certificate is not supplied (via tls_certificate) an error is
601 logged, and clients will find TLS connections fail on startup. Presumably
602 they will retry in-clear.
603 Packagers of Exim are strongly encouraged to create a server certificate
604 at installation time.
605
240c288f
JH
606HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
607 with the $config_file variable.
608
5ef5dd52
JB
609JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
610 in transport context, after the attempt, and per-recipient. The latter type
611 is per host attempted. The event data is the error message, and the errno
612 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 613 and the trailing two digits of the smtp 4xx response.
5ef5dd52 614
e161710d
GF
615GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
616 to write to mainlog (or rejectlog, paniclog) in the window between file
617 creation and permissions/ownership being changed. Particularly affects
618 installations where exicyclog is run as root, rather than exim user;
619 result is that the running daemon panics and dies.
620
a159f203
JH
621JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
622
7f06582c
JH
623JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
624 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
625 "pri" and "weight". Note that the previous implicit priority given by the
626 list order is no longer honoured.
627
4c04137d 628JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
629 for DKIM processing.
630
f0989ec0
JH
631JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
632 by defining SUPPORT_SOCKS.
74f150bf 633
cee5f132
JH
634JH/26 Move PROXY support from Experimental to mainline, enabled for a build
635 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
636 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
637 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 638
8c5d388a
JH
639JH/27 Move Internationalisation support from Experimental to mainline, enabled
640 for a build by defining SUPPORT_I18N
641
2d8d625b
JH
642JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
643 of the query string, and make ${quote_redis:} do that quoting.
644
0cbf2b82
JH
645JH/29 Move Events support from Experimental to mainline, enabled by default
646 and removable for a build by defining DISABLE_EVENT.
647
f2f2c91b
JH
648JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
649
ce325893
JH
650JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
651 cached by the daemon.
652
de78e2d5
JH
653JH/32 Move Redis support from Experimental to mainline, enabled for a build
654 by defining LOOKUP_REDIS. The libhiredis library is required.
655
379ba7d0
JH
656JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
657 keys are given for lookup.
658
f444c2c7
JH
659JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
660 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
661 only supported when built with TLS support. The PolarSSL SHA routines
662 are still used when the TLS library is too old for convenient support.
f444c2c7 663
a57b6200
JH
664JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
665 openssl_options), for security. OpenSSL forces this from version 1.1.0
666 server-side so match that on older versions.
667
07c73177 668JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 669 allocation for $value could be released as the expansion processing
07c73177 670 concluded, but leaving the global pointer active for it.
fa01e4f8 671
4f6ae5c3
JH
672JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
673 and to use the domains and local_parts ACL conditions.
674
1bc460a6
JH
675JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
676 incorrectly not doubled on cutthrough transmission, hence seen as a
677 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 678 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
679 via the normal store-and-forward channel. This could result in duplicates
680 received - but deduplicating mailstores were liable to retain only the
681 initial truncated version.
682
ab9152ff 683JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 684
67e87fcf
JH
685JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
686
ab9152ff
JH
687JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
688 we're in there, support oversigning also; bug 1309.
689
af483912
JH
690JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
691
bc3c7bb7 692HS/04 Add support for keep_environment and add_environment options.
df3def24 693
13559da6
JH
694JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
695 either intentional arithmetic overflow during PRNG, or testing config-
696 induced overflows.
697
59eaad2b
JH
698JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
699 delivery resulted in actual delivery. Cancel cutthrough before DATA
700 stage.
701
f9334a28
JH
702JH/45 Fix cutthrough, when connection not opened by verify and target hard-
703 rejects a recipient: pass the reject to the originator.
704
dc8091e7
JH
705JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
706 Many were false-positives and ignorable, but it's worth fixing the
707 former class.
708
dfe7d917
JH
709JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
710 for the new environment-manipulation done at startup. Move the routines
711 from being local to tls.c to being global via the os.c file.
712
93cc2d6e
JH
713JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
714 an extract embedded as result-arg for a map, the first arg for extract
715 is unavailable so we cannot tell if this is a numbered or keyed
716 extraction. Accept either.
717
13559da6 718
9c695f6d
JH
719Exim version 4.86
720-----------------
4c57a40e 721
9c695f6d
JH
722JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
723 expanded.
724
506900af
JH
725JH/02 The smtp transport option "multi_domain" is now expanded.
726
ad07e9ad
JH
727JH/03 The smtp transport now requests PRDR by default, if the server offers
728 it.
729
01a4a5c5 730JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 731 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
732 can be used to disable this per-host. The build option
733 EXPERIMENTAL_CERTNAMES is withdrawn.
734
cb1d7830 735JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 736 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
737 For GnuTLS, only version 3.0.20 or later.
738
610ff438 739JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
740 (but not required) by default. The verification status is now logged by
741 default, for both outbound TLS and client-certificate supplying inbound
742 TLS connections
610ff438 743
f926e272
JH
744JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
745 sites use this now.
746
50dc7409
JH
747JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
748 Status Notification (bounce) messages are now MIME format per RFC 3464.
749 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
750 under the control of the dsn_advertise_hosts option, and routers may
751 have a dsn_lasthop option.
752
0f0c8159
JH
753JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
754 default, modifiable by a malware= option. The list separator for
23763898 755 the options can now be changed in the usual way. Bug 68.
4e71661f 756
1ad6489e
JH
757JH/10 The smtp_receive_timeout main option is now expanded before use.
758
aeaf5db3
JH
759JH/11 The incoming_interface log option now also enables logging of the
760 local interface on delivery outgoing connections.
761
5032d1cf
JH
762JH/12 The cutthrough-routing facility now supports multi-recipient mails,
763 if the interface and destination host and port all match.
764
7e8360e6
JH
765JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
766 /defer_ok option.
767
c5f280e2
AL
768JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
769 Patch from Andrew Lewis.
770
fd4d8871 771JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 772 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
773 modifiers per server. Patch originally by <rommer@active.by>.
774
775JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
776 and remote servers. Remote servers can be IPv6 addresses, and
777 specify a port-range.
fd4d8871 778
23763898
JH
779JH/17 Bug 68: The spamd_address main option now supports an optional
780 timeout value per server.
781
2ad78978
JH
782JH/18 Bug 1581: Router and transport options headers_add/remove can
783 now have the list separator specified.
784
8a512ed5 785JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 786 option values.
8a512ed5 787
82c0c8ea 788JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
789 under OpenSSL.
790
cc00f4af
JH
791JH/21 Support for the A6 type of dns record is withdrawn.
792
82c0c8ea
JH
793JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
794 rather than the verbs used.
795
b980ed83
JH
796JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
797 from 255 to 1024 chars.
798
6c9ed72e
JH
799JH/24 Verification callouts now attempt to use TLS by default.
800
cfab9d68 801HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 802 are generic router options now. The defaults didn't change.
50dc7409 803
f846c8f5
JH
804JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
805 Original patch from Alexander Shikoff, worked over by JH.
806
fd4c285c
HSHR
807HS/02 Bug 1575: exigrep falls back to autodetection of compressed
808 files if ZCAT_COMMAND is not executable.
809
4c04137d 810JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 811
d2a2c69b
JH
812JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
813
8241d8dd
JH
814JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
815 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 816 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
817 (and we were inconsistent anyway for A-only vs AAAA+A).
818
1f12df4d
JH
819JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
820
1f155f8e
JH
821JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
822 when evaluating $sender_host_dnssec.
823
1705dd20
JH
824JH/31 Check the HELO verification lookup for DNSSEC, adding new
825 $sender_helo_dnssec variable.
826
038597d2
PP
827JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
828
474f71bf
JH
829JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
830
7137ca4b
JH
831JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
832
dcb1095c
JH
833JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
834 documented as working, but never had. Support all but $spam_report.
835
2f460950
JH
836JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
837 added for tls authenticator.
838
2f680c0c
HSHR
839HS/03 Add perl_taintmode main config option
840
9c695f6d 841
e449c3b0
TL
842Exim version 4.85
843-----------------
4c57a40e 844
e449c3b0
TL
845TL/01 When running the test suite, the README says that variables such as
846 no_msglog_check are global and can be placed anywhere in a specific
847 test's script, however it was observed that placement needed to be near
848 the beginning for it to behave that way. Changed the runtest perl
849 script to read through the entire script once to detect and set these
850 variables, reset to the beginning of the script, and then run through
851 the script parsing/test process like normal.
852
ac20058f
TL
853TL/02 The BSD's have an arc4random API. One of the functions to induce
854 adding randomness was arc4random_stir(), but it has been removed in
855 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
856 function when detected.
857
a9b8ec8b
JH
858JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
859 cause callback expansion.
860
6286d7c4
TL
861TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
862 syntax errors in an expansion can be treated as a string instead of
863 logging or causing an error, due to the internal use of bool_lax
864 instead of bool when processing it.
865
0f06b4f2 866JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
867 server certificates when making smtp deliveries.
868
be36e572
JH
869JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
870
ac4ef9bd
JH
871JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
872
0eb51736
TL
873TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
874
c713ca4b
TL
875TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
876 Merged patch from Sebastian Wiedenroth.
e449c3b0 877
bd21a787
WB
878JH/05 Fix results-pipe from transport process. Several recipients, combined
879 with certificate use, exposed issues where response data items split
880 over buffer boundaries were not parsed properly. This eventually
881 resulted in duplicates being sent. This issue only became common enough
4c04137d 882 to notice due to the introduction of connection certificate information,
bd21a787
WB
883 the item size being so much larger. Found and fixed by Wolfgang Breyha.
884
8bc732e8
JH
885JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
886 size buffer was used, resulting in syntax errors when an expansion
887 exceeded it.
888
a7fec7a7
JH
889JH/07 Add support for directories of certificates when compiled with a GnuTLS
890 version 3.3.6 or later.
891
4c04137d 892JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
893 is EXPERIMENTAL_EVENT, the main-configuration and transport options
894 both become "event_action", the variables become $event_name, $event_data
aec45841 895 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
896 routers, transports and related events. The tls:cert event is now also
897 raised for inbound connections, if the main configuration event_action
898 option is defined.
774ef2d7 899
eca4debb
TL
900TL/06 In test suite, disable OCSP for old versions of openssl which contained
901 early OCSP support, but no stapling (appears to be less than 1.0.0).
902
8d692470
JH
903JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
904 server certificate names available under the smtp transport option
905 "tls_verify_cert_hostname" now do not permit multi-component wildcard
906 matches.
907
e9477a08
JH
908JH/10 Time-related extraction expansions from certificates now use the main
909 option "timezone" setting for output formatting, and are consistent
910 between OpenSSL and GnuTLS compilations. Bug 1541.
911
ad4c5ff9
JH
912JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
913 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
914
915JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
916 include certificate info, eximon was claiming there were spoolfile
917 syntax errors.
918
3394b36a 919JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
920
921JH/14 Log delivery-related information more consistently, using the sequence
922 "H=<name> [<ip>]" wherever possible.
923
3394b36a
TL
924TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
925 are problematic for Debian distribution, omit them from the release
926 tarball.
927
ad4c5ff9
JH
928JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
929
4c04137d 930JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
931 Bug 1561.
932
933JH/17 Fix a null-indirection in certextract expansions when a nondefault
934 output list separator was used.
935
8bc732e8 936
1f0ebb98
TL
937Exim version 4.84
938-----------------
09728d20
TL
939TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
940 checkers that were complaining about end of non-void function with no
941 return.
1f0ebb98 942
a612424f 943JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 944 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
945
946JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
947
948TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 949 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 950
1f0ebb98 951
c0e56233
TF
952Exim version 4.83
953-----------------
954
955TF/01 Correctly close the server side of TLS when forking for delivery.
956
957 When a message was received over SMTP with TLS, Exim failed to clear up
958 the incoming connection properly after forking off the child process to
959 deliver the message. In some situations the subsequent outgoing
960 delivery connection happened to have the same fd number as the incoming
961 connection previously had. Exim would try to use TLS and fail, logging
962 a "Bad file descriptor" error.
963
7245734e
TF
964TF/02 Portability fix for building lookup modules on Solaris when the xpg4
965 utilities have not been installed.
966
fd5dad68
JH
967JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
968 temporary space as the ACL may create new global variables.
969
5428a946
TL
970TL/01 LDAP support uses per connection or global context settings, depending
971 upon the detected version of the libraries at build time.
972
a3c86431
TL
973TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
974 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
975 were a direct connection from the outside internet. PPv2 support was
976 updated based on HAProxy spec change in May 2014.
a3c86431 977
aa26e137
JH
978JH/02 Add ${listextract {number}{list}{success}{fail}}.
979
5a1b8443
WB
980TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
981 Properly escape header and check for NULL return.
982
72c9e342
PP
983PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
984 not dns_use_dnssec.
985
76f44207
WB
986JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
987
770747fd
MFM
988TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
989 characters in header names, implemented as a verify condition.
990 Contributed by Michael Fischer v. Mollard.
991
8ddef691 992TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
993 results permerror and temperror. Previous values are deprecated but
994 still accepted. In a future release, err_perm and err_temp will be
995 completely removed, which will be a backward incompatibility if the
996 ACL tests for either of these two old results. Patch contributed by
8ddef691 997 user bes-internal on the mailing list.
c0e56233 998
b9c2e32f
AR
999JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1000
e45a1c37
JH
1001JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1002 selectors, in both main and reject logs.
1003
67d81c10
JH
1004JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1005 failed delivery.
1006
b1f8e4f8
JH
1007JH/07 Add malware type "sock" for talking to simple daemon.
1008
511a6c14 1009JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1010
1011JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1012 routers/transports under cutthrough routing.
214042d2 1013
51c7471d
JH
1014JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1015 numbers. Touch up "bool" conditional to keep the same definition.
1016
3695be34
TL
1017TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1018
1e06383a
TL
1019JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1020
76146973
JH
1021JH/12 Expand items in router/transport headers_add or headers_remove lists
1022 individually rather than the list as a whole. Bug 1452.
1023
1024 Required for reasonable handling of multiple headers_ options when
1025 they may be empty; requires that headers_remove items with embedded
1026 colons must have them doubled (or the list-separator changed).
1027
8c8b8274
TL
1028TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1029 view the policy declared in the DMARC record. Currently, $dmarc_status
1030 is a combined value of both the record presence and the result of the
1031 analysis.
b1f8e4f8 1032
35aba663
JH
1033JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1034
8c51eead 1035JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1036 dnslookup router and the smtp transport (applying to the forward
1037 lookup).
8c51eead 1038
deae092e
HS
1039TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1040 of ldap servers used for a specific lookup. Patch provided by Heiko
1041 Schlichting.
35aba663 1042
fd3b6a4a 1043JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1044 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1045
8d91c6dc
LT
1046TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1047 Patch submitted by Lars Timman.
1048
2b4a568d
JH
1049JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1050
d2af03f4
HS
1051TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1052 Requires trusted mode and valid format message id, aborts otherwise.
1053 Patch contributed by Heiko Schlichting.
1054
9d1c15ef
JH
1055JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1056 certextract with support for various fields. Bug 1358.
1057
44662487
JH
1058JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1059 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1060 hosts_request_ocsp.
1061
ed3bba5f 1062JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1063 operate on certificate variables to give certificate fingerprints
9ef9101c 1064 Also new ${sha256:cert_variable}.
44662487 1065
8ccd00b1
JH
1066JH/23 The PRDR feature is moved from being Experimental into the mainline.
1067
8ded8589
TL
1068TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1069 Christian Aistleitner.
1070
f2de3a33
JH
1071JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1072
6eb02f88
TL
1073TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1074 file. Patch from Wolfgang Breyha.
1075
00bff6f6
JH
1076JH/25 Expand the coverage of the delivery $host and $host_address to
1077 client authenticators run in verify callout. Bug 1476.
1078
071c51f7
JH
1079JH/26 Port service names are now accepted for tls_on_connect_ports, to
1080 align with daemon_smtp_ports. Bug 72.
1081
a6d4c44e
TF
1082TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1083 support and error reporting did not work properly.
1084
3ae173e7
ACK
1085TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1086 and is readable. Patch from Andrew Colin Kissa.
1087
c13d09b8
TL
1088TL/14 Enhance documentation of ${run expansion and how it parses the
1089 commandline after expansion, particularly in the case when an
1090 unquoted variable expansion results in an empty value.
1091
0df4ab80
JH
1092JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1093
66be95e0
PP
1094PP/02 Fix internal collision of T_APL on systems which support RFC3123
1095 by renaming away from it. Addresses GH issue 15, reported by
1096 Jasper Wallace.
1097
1bd0d12b
JH
1098JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1099
0de7239e
TL
1100TL/15 SECURITY: prevent double expansion in math comparison functions
1101 (can expand unsanitized data). Not remotely exploitable.
1102 CVE-2014-2972
1103
fd3b6a4a 1104
2c422e6f 1105Exim version 4.82
98a90c36
PP
1106-----------------
1107
1108PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1109
12f69989
PP
1110PP/02 Make -n do something, by making it not do something.
1111 When combined with -bP, the name of an option is not output.
1112
54c90be1
PP
1113PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1114 by GnuTLS.
1115
1f4a55da
PP
1116PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1117 $sender_host_name and config options to manage this, and basic check
1118 routines.
1119
13363eba 1120PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1121
66645890 1122PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1123 (Only plugin which currently uses this is kerberos4, which nobody should
1124 be using, but we should make it available and other future plugins might
1125 conceivably use it, even though it would break NAT; stuff *should* be
1126 using channel bindings instead).
66645890 1127
a3fb9793 1128PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1129 name; added for Sendmail compatibility; requires admin caller.
1130 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1131 just ignore it); requires trusted caller.
a3fb9793 1132 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1133 Bugzilla 1117.
a3fb9793 1134
d27f98fe 1135TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1136
6822b909
TL
1137TL/02 Add +smtp_confirmation as a default logging option.
1138
e7568d51
TL
1139TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1140 Patch by Magnus Holmgren from 2007-02-20.
1141
ae0e32ee 1142TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1143 Bugzilla 1283 - Spec typo.
97f42f10 1144 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1145
1146TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1147
e2658fff
TL
1148TL/06 Add Experimental DMARC support using libopendmarc libraries.
1149
83712b39
TL
1150TL/07 Fix an out of order global option causing a segfault. Reported to dev
1151 mailing list by by Dmitry Isaikin.
1152
976b7e9f
JH
1153JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1154
be4a1376
JH
1155JH/02 Support "G" suffix to numbers in ${if comparisons.
1156
ec4b68e5
PP
1157PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1158
d7148a07
NM
1159NM/01 Bugzilla 1197 - Spec typo
1160 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1161
585121e2 1162JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1163
2519e60d
TL
1164PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1165 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1166 function.
a5f239e4 1167
13d08c90
PP
1168PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1169 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1170
bef3ea7f
JH
1171JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1172 "acl {{name}{arg}...}", and optional args on acl condition
1173 "acl = name arg..."
a5f239e4 1174
846726c5
JH
1175JH/05 Permit multiple router/transport headers_add/remove lines.
1176
3a796370
JH
1177JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1178
ea722490 1179JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1180 Performance patch from Paul Fisher. Bugzilla 1262.
1181
b1b05573
JH
1182JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1183 Bugzilla 884.
1184
362145b5
JH
1185JH/09 Add $headers_added variable, with content from use of ACL modifier
1186 add_header (but not yet added to the message). Bugzilla 199.
1187
3c0a92dc
JH
1188JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1189 Pulled from Bugzilla 817 by Wolfgang Breyha.
1190
6d7c6175
PP
1191PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1192 CVE-2012-5671
e78e6ecf 1193 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1194
6f123593
JH
1195JH/11 Add A= logging on delivery lines, and a client_set_id option on
1196 authenticators.
1197
c8e2fc1e
JH
1198JH/12 Add optional authenticated_sender logging to A= and a log_selector
1199 for control.
1200
005ac57f
PP
1201PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1202
3f1df0e3
PP
1203PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1204 advertise SMTP AUTH mechanism to us, instead of a generic
1205 protocol violation error. Also, make Exim more robust to bad
1206 data from the Dovecot auth socket.
1207
67bd1ab3
TF
1208TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1209
1210 When a queue runner is handling a message, Exim first routes the
1211 recipient addresses, during which it prunes them based on the retry
1212 hints database. After that it attempts to deliver the message to
1213 any remaining recipients. It then updates the hints database using
1214 the retry rules.
1215
1216 So if a recipient address works intermittently, it can get repeatedly
1217 deferred at routing time. The retry hints record remains fresh so the
1218 address never reaches the final cutoff time.
1219
1220 This is a fairly common occurrence when a user is bumping up against
1221 their storage quota. Exim had some logic in its local delivery code
1222 to deal with this. However it did not apply to per-recipient defers
1223 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1224
1ddeb334
TF
1225 This change adds a proper retry rule check during routing so that the
1226 final cutoff time is checked against the message's age. We only do
1227 this check if there is an address retry record and there is not a
1228 domain retry record; this implies that previous attempts to handle
1229 the address had the retry_use_local_parts option turned on. We use
1230 this as an approximation for the destination being like a local
1231 delivery, as in LMTP.
67bd1ab3
TF
1232
1233 I suspect this new check makes the old local delivery cutoff check
1234 redundant, but I have not verified this so I left the code in place.
1235
326cdc37
TF
1236TF/02 Correct gecos expansion when From: is a prefix of the username.
1237
1238 Test 0254 submits a message to Exim with the header
1239
1240 Resent-From: f
1241
1242 When I ran the test suite under the user fanf2, Exim expanded
1243 the header to contain my full name, whereas it should have added
1244 a Resent-Sender: header. It erroneously treats any prefix of the
1245 username as equal to the username.
1246
1247 This change corrects that bug.
1248
f62514b3
GF
1249GF/01 DCC debug and logging tidyup
1250 Error conditions log to paniclog rather than rejectlog.
1251 Debug lines prefixed by "DCC: " to remove any ambiguity.
1252
eb505532
TF
1253TF/03 Avoid unnecessary rebuilds of lookup-related code.
1254
14c7b357
PP
1255PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1256 Bug spotted by Jeremy Harris; was flawed since initial commit.
1257 Would have resulted in OCSP responses post-SNI triggering an Exim
1258 NULL dereference and crash.
1259
94eaf700
PP
1260JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1261
6f5a440a
PP
1262PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1263 Bug detection, analysis and fix by Samuel Thibault.
1264 Bugzilla 1331, Debian bug #698092.
1265
514ee161
SC
1266SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1267
fd98a5c6
JH
1268JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1269 Server implementation by Todd Lyons, client by JH.
1270 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1271 config variable "prdr_enable" controls whether the server
1272 advertises the facility. If the client requests PRDR a new
1273 acl_data_smtp_prdr ACL is called once for each recipient, after
1274 the body content is received and before the acl_smtp_data ACL.
4c04137d 1275 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1276 on the smtp transport, and the server advertisement.
1277 Default client logging of deliveries and rejections involving
1278 PRDR are flagged with the string "PRDR".
1279
035c7f1e
PP
1280PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1281 fclose(). Diagnosis by Todd Lyons.
1282
ff284120
PP
1283PP/17 Update configure.default to handle IPv6 localhost better.
1284 Patch by Alain Williams (plus minor tweaks).
1285 Bugzilla 880.
1286
26e72755
PP
1287PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1288 This is now consistent with GnuTLS, and is now documented: the
1289 previous undocumented portable approach to treating the option as
1290 unset was to force an expansion failure. That still works, and
1291 an empty string is now equivalent.
1292
0fbd9bff
PP
1293PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1294 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1295 not performing validation itself.
1296
700d22f3
PP
1297PP/20 Added force_command boolean option to pipe transport.
1298 Patch from Nick Koston, of cPanel Inc.
1299
fcc8e047
JH
1300JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1301 Bugzilla 321, 823.
1302
4c04137d 1303TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1304
8c020188
PP
1305PP/21 Fix eximon continuous updating with timestamped log-files.
1306 Broken in a format-string cleanup in 4.80, missed when I repaired the
1307 other false fix of the same issue.
1308 Report and fix from Heiko Schlichting.
1309 Bugzilla 1363.
1310
d13cdd30
PP
1311PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1312 Report from Prashanth Katuri.
1313
e2fbf4a2
PP
1314PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1315 It's SecureTransport, so affects any MacOS clients which use the
1316 system-integrated TLS libraries, including email clients.
1317
f4c1088b
PP
1318PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1319 using a MIME ACL for non-SMTP local injection.
1320 Report and assistance in diagnosis by Warren Baker.
1321
c5c2182f
PP
1322TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1323
73431ca9
JH
1324JH/16 Fix comparisons for 64b. Bugzilla 1385.
1325
2d07a215
TL
1326TL/09 Add expansion variable $authenticated_fail_id to keep track of
1327 last id that failed so it may be referenced in subsequent ACL's.
1328
a30a8861
TL
1329TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1330 Alexander Miroch.
1331
33382dd9
TL
1332TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1333 ldap library initialization, allowing self-signed CA's to be
1334 used. Also properly sets require_cert option later in code by
1335 using NULL (global ldap config) instead of ldap handle (per
1336 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1337
046172e6
TL
1338TL/12 Enhanced documentation in the ratelimit.pl script provided in
1339 the src/util/ subdirectory.
1340
581d7bee 1341TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1342 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1343 EXPERIMENTAL_TPDA.
1344
1345TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1346 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1347 redis_servers = needs to be configured which will be used by the redis
1348 lookup. Patch from Warren Baker, of The Packet Hub.
1349
237b2cf2
TL
1350TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1351
9fc5a352
TL
1352TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1353 hostname or reverse DNS when processing a host list. Used suggestions
1354 from multiple comments on this bug.
1a7b746d 1355
b10e4ec2
TL
1356TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1357
e2cebd74
TL
1358TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1359 Missed a few lines, added it to make the runtest require no keyboard
1360 interaction.
1361
1362TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1363 contains upper case chars. Make router use caseful_local_part.
1364
2519e60d
TL
1365TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1366 support when GnuTLS has been built with p11-kit.
1367
e78e6ecf 1368
4263f395
PP
1369Exim version 4.80.1
1370-------------------
1371
1372PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1373 CVE-2012-5671
2c422e6f 1374 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1375
ea722490 1376
b1770b6e 1377Exim version 4.80
0599f9cf
PP
1378-----------------
1379
1380PP/01 Handle short writes when writing local log-files.
1381 In practice, only affects FreeBSD (8 onwards).
1382 Bugzilla 1053, with thanks to Dmitry Isaikin.
1383
23c7e742
NM
1384NM/01 Bugzilla 949 - Documentation tweak
1385
b322aac8
NM
1386NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1387 improved.
1388
4a891427
NM
1389NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1390
c1e794ba 1391PP/02 Implemented gsasl authenticator.
b322aac8 1392
97753960
PP
1393PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1394
1395PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1396 `pkg-config foo` for cflags/libs.
1397
df6303fa
PP
1398PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1399 with rest of GSASL and with heimdal_gssapi.
1400
7e6a8985
PP
1401PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1402 `pkg-config foo` for cflags/libs for the TLS implementation.
1403
f1e05cc7 1404PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1405 properties get this fed in as external SSF. A number of robustness
1406 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1407
4c287009
PP
1408PP/08 cyrus_sasl server now expands the server_realm option.
1409
b98bb9ac
PP
1410PP/09 Bugzilla 1214 - Log authentication information in reject log.
1411 Patch by Jeremy Harris.
1412
4a6a987a
PP
1413PP/10 Added dbmjz lookup type.
1414
c45dd180 1415PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1416
7db8d074
PP
1417PP/12 MAIL args handles TAB as well as SP, for better interop with
1418 non-compliant senders.
1419 Analysis and variant patch by Todd Lyons.
1420
eae0036b 1421NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1422 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1423 Patch from Dirk Mueller <dmueller@suse.com>
1424
dec5017e
PP
1425PP/13 tls_peerdn now print-escaped for spool files.
1426 Observed some $tls_peerdn in wild which contained \n, which resulted
1427 in spool file corruption.
1428
c80c5570
PP
1429PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1430 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1431 or write after TLS renegotiation, which otherwise led to messages
1432 "Got SSL error 2".
1433
076b11e2
PP
1434TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1435 as a tracking header (ie: a signed header comes before the signature).
1436 Patch from Wolfgang Breyha.
1437
5407bfff
JH
1438JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1439 comma-sep list; embedded commas doubled.
1440
9e45c72b
PP
1441JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1442
e74376d8
PP
1443PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1444 diagnostics.
1445 Report and patch from Dmitry Banschikov.
1446
4c04137d 1447PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1448 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1449 failures. We appear to now support TLS1.1+ with Exim.
1450
7be682ca
PP
1451PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1452 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1453 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1454 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1455
ef840681
PP
1456PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1457 NULL dereference. Report and patch from Alun Jones.
1458
5bfb4cdf
PP
1459PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1460 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1461 Not seeing resolver debug output on NetBSD, but suspect this is a
1462 resolver implementation change.
1463
c6e95d22
PP
1464PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1465 Left warnings. Added "eximon gdb" invocation mode.
1466
9cbad13b
PP
1467PP/21 Defaulting "accept_8bitmime" to true, not false.
1468
9ee44efb
PP
1469PP/22 Added -bw for inetd wait mode support.
1470
6a6084f8
PP
1471PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1472 locate the relevant includes and libraries. Made this the default.
1473
12dd53c7
PP
1474PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1475 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1476
9e45c72b 1477JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1478 This may cause build issues on older platforms.
1479
17c76198
PP
1480PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1481 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1482 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1483 Added SNI support via GnuTLS too.
af3498d6 1484 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1485
53947857 1486PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1487
eae0036b 1488PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1489 Applied second patch from Janne, implementing suggestion to default
1490 multiple-strings-in-record handling to match SPF spec.
eae0036b 1491
9e45c72b 1492JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1493
7390e768
PP
1494PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1495 read-only, out of scope).
1496 Patch from Wolfgang Breyha, report from Stuart Northfield.
1497
08488c86
PP
1498PP/29 Fix three issues highlighted by clang analyser static analysis.
1499 Only crash-plausible issue would require the Cambridge-specific
1500 iplookup router and a misconfiguration.
1501 Report from Marcin Mirosław.
1502
6475bd82
PP
1503PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1504
81f91683
PP
1505PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1506 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1507 As part of this, removing so much warning spew let me fix some minor
1508 real issues in debug logging.
1509
5779e6aa
PP
1510PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1511 assignment on my part. Fixed.
1512
3375e053
PP
1513PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1514 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1515 Janne Snabb (who went above and beyond: thank you).
1516
1517PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1518 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1519 relatively easy to get wrong. Should also expose TLS library linkage
1520 problems.
3375e053 1521
9d26b8c0
PP
1522PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1523 64-bit ${eval} (JH/03).
1524
57eb9e91 1525PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1526 GNU libc to support some of the 64-bit stuff, should not lead to
1527 conflicts. Defined before os.h is pulled in, so if a given platform
1528 needs to override this, it can.
1529
16880d1a
PP
1530PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1531 protection layer was required, which is not implemented.
1532 Bugzilla 1254, patch from Wolfgang Breyha.
1533
a799883d
PP
1534PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1535 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1536 tls_dhparam take prime identifiers. Also unbreak combination of
1537 OpenSSL+DH_params+TLSSNI.
1538
3ecab157 1539PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1540
0599f9cf 1541
867fcbf5
PP
1542Exim version 4.77
1543-----------------
1544
1545PP/01 Solaris build fix for Oracle's LDAP libraries.
1546 Bugzilla 1109, patch from Stephen Usher.
1547
f1a29782
TF
1548TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1549
ab42bd23
TK
1550TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1551 whitespace trailer
867fcbf5 1552
0ca0cf52
TF
1553TF/02 Fix a couple more cases where we did not log the error message
1554 when unlink() failed. See also change 4.74-TF/03.
1555
921b12ca
TF
1556TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1557 lock up or crash if it happened to be inside a call to libc when it
1558 got a SIGUSR1 from exiwhat.
1559
1560 The SIGUSR1 handler appends the current process status to the process
1561 log which is later printed by exiwhat. It used to use the general
1562 purpose logging code to do this, but several functions it calls are
1563 not safe for signals.
1564
1565 The new output code in the SIGUSR1 handler is specific to the process
1566 log, and simple enough that it's easy to inspect for signal safety.
1567 Removing some special cases also simplifies the general logging code.
1568 Removing the spurious timestamps from the process log simplifies
1569 exiwhat.
1570
c99ce5c9
TF
1571TF/04 Improved ratelimit ACL condition.
1572
1573 The /noupdate option has been deprecated in favour of /readonly which
1574 has clearer semantics. The /leaky, /strict, and /readonly update modes
1575 are mutually exclusive. The update mode is no longer included in the
1576 database key; it just determines when the database is updated. (This
4c04137d 1577 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1578
1579 Exim now checks that the per_* options are used with an update mode that
1580 makes sense for the current ACL. For example, when Exim is processing a
1581 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1582 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1583 must specify per_mail/readonly. If you omit the update mode it defaults to
1584 /leaky where that makes sense (as before) or /readonly where required.
1585
1586 The /noupdate option is now undocumented but still supported for
1587 backwards compatibility. It is equivalent to /readonly except that in
1588 ACLs where /readonly is required you may specify /leaky/noupdate or
1589 /strict/noupdate which are treated the same as /readonly.
1590
1591 A useful new feature is the /count= option. This is a generalization
1592 of the per_byte option, so that you can measure the throughput of other
1593 aggregate values. For example, the per_byte option is now equivalent
1594 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1595
1596 The per_rcpt option has been generalized using the /count= mechanism
1597 (though it's more complicated than the per_byte equivalence). When it is
1598 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1599 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1600 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1601 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1602 Note that using per_rcpt with a non-readonly update mode in more than
1603 one ACL will cause the recipients to be double-counted. (The per_mail
1604 and per_byte options don't have this problem.)
1605
1606 The handling of very low rates has changed slightly. If the computed rate
1607 is less than the event's count (usually one) then this event is the first
1608 after a long gap. In this case the rate is set to the same as this event's
1609 count, so that the first message of a spam run is counted properly.
1610
1611 The major new feature is a mechanism for counting the rate of unique
1612 events. The new per_addr option counts the number of different
1613 recipients that someone has sent messages to in the last time period. It
1614 behaves like per_rcpt if all the recipient addresses are different, but
1615 duplicate recipient addresses do not increase the measured rate. Like
1616 the /count= option this is a general mechanism, so the per_addr option
1617 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1618 example, measure the rate that a client uses different sender addresses
1619 with the options per_mail/unique=$sender_address. There are further
1620 details in the main documentation.
1621
3634fc25
TF
1622TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1623
792e8a19
TF
1624TF/06 Removed a few PCRE remnants.
1625
5901f0ab
TF
1626TF/07 Automatically extract Exim's version number from tags in the git
1627 repository when doing development or release builds.
1628
7f2a2a43
PP
1629PP/02 Raise smtp_cmd_buffer_size to 16kB.
1630 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1631
061b7ebd
PP
1632PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1633 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1634 Bugzilla 97.
1635
e12f8c32
PP
1636PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1637
9e949f00 1638PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1639 Bugzilla 1078. Patch from John Horne.
1640
1641PP/06 Stop make process more reliably on build failure.
1642 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1643
555ae6af 1644PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1645 Bugzilla 1089. Patch from Heiko Schlittermann.
1646
1647PP/08 Handle ${run} returning more data than OS pipe buffer size.
1648 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1649
6f7fe114
PP
1650PP/09 Handle IPv6 addresses with SPF.
1651 Bugzilla 860. Patch from Wolfgang Breyha.
1652
c566dd90
PP
1653PP/10 GnuTLS: support TLS 1.2 & 1.1.
1654 Bugzilla 1156.
89f897c3
PP
1655 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1656 Bugzilla 1095.
c566dd90 1657
d6cc7c78 1658PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1659 New compile-time build option, EXPAND_LISTMATCH_RHS.
1660 New expansion conditions, "inlist", "inlisti".
1661
0d0e4455
PP
1662PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1663
3399bb60 1664PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1665
1666PP/14 fix log_write() format string regression from TF/03.
1667 Bugzilla 1152. Patch from Dmitry Isaikin.
1668
0ca0cf52 1669
10906672
PP
1670Exim version 4.76
1671-----------------
1672
1673PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1674
754a0503
PP
1675PP/02 Harmonised TLS library version reporting; only show if debugging.
1676 Layout now matches that introduced for other libraries in 4.74 PP/03.
1677
c0c7b2da
PP
1678PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1679
e97d1f08
PP
1680PP/04 New "dns_use_edns0" global option.
1681
084c1d8c
PP
1682PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1683 Bugzilla 1098.
1684
4e7ee012
PP
1685PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1686 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1687
c8d52a00
PP
1688TK/01 Updated PolarSSL code to 0.14.2.
1689 Bugzilla 1097. Patch from Andreas Metzler.
1690
54e7ce4a
PP
1691PP/07 Catch divide-by-zero in ${eval:...}.
1692 Fixes bugzilla 1102.
1693
5ee6f336
PP
1694PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1695 Bugzilla 1104.
1696
c8d52a00 1697TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1698 format-string attack -- SECURITY: remote arbitrary code execution.
1699
1700TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1701 time unintentionally subject to list matching rules, letting the header
1702 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1703 arbitrary string expansion). This allowed for information disclosure.
1704
1705PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1706 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1707
10906672 1708
aa097c4c
NM
1709Exim version 4.75
1710-----------------
1711
4c04137d 1712NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1713 Bugzilla 1073
1714
7f3d9eff
TF
1715TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1716 This fixes portability to compilers other than gcc, notably
1717 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1718
159f52d2
TF
1719TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1720 makefiles for portability to HP-UX and POSIX correctness.
1721
0cc9542a
PP
1722PP/01 Permit LOOKUP_foo enabling on the make command-line.
1723 Also via indented variable definition in the Makefile.
1724 (Debugging by Oliver Heesakkers).
1725
f7274286
PP
1726PP/02 Restore caching of spamd results with expanded spamd_address.
1727 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1728
7b797365
PP
1729PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1730 Improves build reliability. Fix from: Frank Elsner
1731
caacae52
NM
1732NM/02 Fix wide character breakage in the rfc2047 coding
1733 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1734
09dcaba9
NM
1735NM/03 Allow underscore in dnslist lookups
1736 Fixes bug 1026. Patch from Graeme Fowler
1737
bc19a55b
PP
1738PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1739 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1740
bd4c9759
NM
1741NM/04 Fixed exiqgrep to cope with mailq missing size issue
1742 Fixes bug 943.
1743
b72aab72
PP
1744PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1745 is logged, to avoid truncation. Patch from John Horne.
1746
2fe76745
PP
1747PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1748 Patch from Jakob Hirsch.
1749
76aa570c
PP
1750PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1751 SQL string expansion failure details.
1752 Patch from Andrey Oktyabrski.
1753
f1e5fef5
PP
1754PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1755 Patch from Simon Arlott.
1756
4d805ee9
PP
1757PP/09 New lookups functionality failed to compile on old gcc which rejects
1758 extern declarations in function scope.
1759 Patch from Oliver Fleischmann
1760
cd59ab18
PP
1761PP/10 Use sig_atomic_t for flags set from signal handlers.
1762 Check getgroups() return and improve debugging.
1763 Fixed developed for diagnosis in bug 927 (which turned out to be
1764 a kernel bug).
1765
332f5cf3
PP
1766PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1767 Patch from Mark Zealey.
1768
29cfeb94
PP
1769PP/12 Bugzilla 1056: Improved spamd server selection.
1770 Patch from Mark Zealey.
1771
660242ad
PP
1772PP/13 Bugzilla 1086: Deal with maildir quota file races.
1773 Based on patch from Heiko Schlittermann.
1774
bc4bc4c5
PP
1775PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1776 Patch from Uwe Doering, sign-off by Michael Haardt.
1777
2e64baa9
NM
1778NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1779 variable declaration deep within a block. Bug and patch from
1780 Dennis Davis.
1781
4c04137d 1782PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1783
6bac1a9a
PP
1784PP/16 Make DISABLE_DKIM build knob functional.
1785
552193f0
NM
1786NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1787 Patch by Simon Arlott
baeee2c1 1788
1b587e48
TF
1789TF/03 Fix valgrind.h portability to C89 compilers that do not support
1790 variable argument macros. Our copy now differs from upstream.
1791
aa097c4c 1792
8c07b69f
TF
1793Exim version 4.74
1794-----------------
1795
1796TF/01 Failure to get a lock on a hints database can have serious
1797 consequences so log it to the panic log.
1798
c0ea85ab
TF
1799TF/02 Log LMTP confirmation messages in the same way as SMTP,
1800 controlled using the smtp_confirmation log selector.
1801
0761d44e
TF
1802TF/03 Include the error message when we fail to unlink a spool file.
1803
0a349494
PP
1804DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1805 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1806 for maintaining out-of-tree patches for some time.
1807
1808PP/01 Bugzilla 139: Documentation and portability issues.
1809 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1810 Handle per-OS dynamic-module compilation flags.
1811
fea24b2e
PP
1812PP/02 Let /dev/null have normal permissions.
1813 The 4.73 fixes were a little too stringent and complained about the
1814 permissions on /dev/null. Exempt it from some checks.
1815 Reported by Andreas M. Kirchwitz.
1816
6545de78
PP
1817PP/03 Report version information for many libraries, including
1818 Exim version information for dynamically loaded libraries. Created
1819 version.h, now support a version extension string for distributors
1820 who patch heavily. Dynamic module ABI change.
1821
1670ef10
PP
1822PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1823 privilege escalation vulnerability whereby the Exim run-time user
1824 can cause root to append content of the attacker's choosing to
1825 arbitrary files.
1826
c0886197
PP
1827PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1828 (Wolfgang Breyha)
1829
b7487bce
PP
1830PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1831 If dropping privileges for untrusted macros, we disabled normal logging
1832 on the basis that it would fail; for the Exim run-time user, this is not
1833 the case, and it resulted in successful deliveries going unlogged.
1834 Fixed. Reported by Andreas Metzler.
1835
8c07b69f 1836
97fd1e48 1837Exim version 4.73
ed7f7860 1838-----------------
97fd1e48
PP
1839
1840PP/01 Date: & Message-Id: revert to normally being appended to a message,
1841 only prepend for the Resent-* case. Fixes regression introduced in
1842 Exim 4.70 by NM/22 for Bugzilla 607.
1843
6901c596
PP
1844PP/02 Include check_rfc2047_length in configure.default because we're seeing
1845 increasing numbers of administrators be bitten by this.
1846
a8c8d6b5
JJ
1847JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1848
77bb000f
PP
1849PP/03 Bugzilla 994: added openssl_options main configuration option.
1850
a29e5231
PP
1851PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1852
ec5a0394 1853PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 1854
55c75993
PP
1855PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1856
453a6645 1857PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
1858 without a peer certificate, leading to a segfault because of an
1859 assumption that peers always have certificates. Be a little more
453a6645
PP
1860 paranoid. Problem reported by Martin Tscholak.
1861
8544e77a
PP
1862PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1863 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1864 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
1865 CL also introduces -bmalware, various -d+acl logging additions and
1866 more caution in buffer sizes.
8544e77a 1867
83e029d5
PP
1868PP/09 Implemented reverse_ip expansion operator.
1869
ed7f7860
PP
1870PP/10 Bugzilla 937: provide a "debug" ACL control.
1871
7d9f747b
PP
1872PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1873
4b2241d2
PP
1874PP/12 Bugzilla 973: Implement --version.
1875
10385c15
PP
1876PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1877
dbc4b90d
PP
1878PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1879
532be449
PP
1880PP/15 Bugzilla 816: support multiple condition rules on Routers.
1881
6a8de854 1882PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
1883 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
1884 ignore trailing whitespace.
6a8de854 1885
5dc43717
JJ
1886JJ/02 prevent non-panic DKIM error from being sent to paniclog
1887
1888JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
1889 "exim" to be used
55c75993 1890
3346ab01
PP
1891PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
1892 Notification from Dr Andrew Aitchison.
1893
491fab4c
PP
1894PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
1895 ExtendedDetectionInfo response format.
1896 Notification from John Horne.
1897
13eb9497
PP
1898PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
1899 compatible.
1900
1901PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
1902 XSL and documented dependency on system catalogs, with examples of how
1903 it normally works.
1904
7f36d675
DW
1905DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
1906 access.
1907
c1d94452
DW
1908DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
1909 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
1910 configuration file which is writeable by the Exim user or group.
1911
e2f5dc15
DW
1912DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
1913 of configuration files to cover files specified with the -C option if
1914 they are going to be used with root privileges, not just the default
1915 configuration file.
1916
cd25e41d
DW
1917DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
1918 option (effectively making it always true).
1919
261dc43e
DW
1920DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
1921 files to be used while preserving root privileges.
1922
fa32850b
DW
1923DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
1924 that rogue child processes cannot use them.
1925
79d4bc3d
PP
1926PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
1927 run-time user, instead of root.
1928
43236f35 1929PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
1930 Exim run-time user without dropping privileges.
1931
fb08281f
DW
1932DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
1933 result string, instead of calling string_vformat() twice with the same
1934 arguments.
3346ab01 1935
74935b98
DW
1936DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
1937 for other users. Others should always drop root privileges if they use
1938 -C on the command line, even for a whitelisted configure file.
1939
90b6341f
DW
1940DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
1941
57730b52
ML
1942NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
1943
66581d1e 1944
465e92cf
JJ
1945Exim version 4.72
1946-----------------
1947
453a6645
PP
1948JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
1949 $data_path, and $header_path variables; fixed documentation bugs and
1950 typos
465e92cf 1951
453a6645
PP
1952JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
1953 exipick to access non-standard spools, including the "frozen" queue
1954 (Finput)
edae0343 1955
9bd3e22c
NM
1956NM/01 Bugzilla 965: Support mysql stored procedures.
1957 Patch from Alain Williams
1958
bb576ff7
NM
1959NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
1960
5a1a5845
NM
1961NM/03 Bugzilla 955: Documentation fix for max_rcpts.
1962 Patch from Andreas Metzler
1963
981a9fad
NM
1964NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
1965 Patch from Kirill Miazine
1966
7fc497ee
NM
1967NM/05 Bugzilla 671: Added umask to procmail example.
1968
1a41defa
JJ
1969JJ/03 installed exipick 20100323.0, fixing doc bug
1970
a466095c 1971NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 1972 directory. Notification and patch from Dan Rosenberg.
a466095c 1973
94a6bd0b
NM
1974TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
1975
1976TK/02 Improve log output when DKIM signing operation fails.
1977
1978MH/01 Treat the transport option dkim_domain as a colon separated
1979 list, not as a single string, and sign the message with each element,
1980 omitting multiple occurences of the same signer.
1981
c1b141a8
NM
1982NM/07 Null terminate DKIM strings, Null initialise DKIM variable
1983 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 1984
b26eacf1 1985NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
1986 Patch by Simon Arlott
1987
179c5980 1988PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 1989 MBX locking. Notification from Dan Rosenberg.
179c5980 1990
9bd3e22c 1991
7c6d71af
NM
1992Exim version 4.71
1993-----------------
1994
7d9f747b 1995TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 1996
f013fb92
NM
1997NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
1998
0eb8eedd
NM
1999NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2000
663ee6d9
NM
2001NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2002
177ebd9b
NM
2003NM/04 Bugzilla 915: Flag broken perl installation during build.
2004
7c6d71af 2005
210f147e
NM
2006Exim version 4.70
2007-----------------
2008
cdd3bb85 2009TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2010 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2011
2012TK/02 Write list of recipients to X-Envelope-Sender header when building
2013 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2014 Hirsch).
cdd3bb85
TK
2015
2016TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2017 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2018 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2019
2020TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2021 by Mark Daniel Reidel <mr@df.eu>.
2022
210f147e
NM
2023NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2024 When building exim an external PCRE library is now needed -
2025 PCRE is a system library on the majority of modern systems.
2026 See entry on PCRE_LIBS in EDITME file.
2027
deafd5b3
NM
2028NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2029 conversation. Added nologin parameter to request.
7d9f747b 2030 Patch contributed by Kirill Miazine.
deafd5b3 2031
089793a4
TF
2032TF/01 Do not log submission mode rewrites if they do not change the address.
2033
5f16ca82
TF
2034TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2035
dae9d94e 2036NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2037 log files in place. Contributed by Roberto Lima.
dae9d94e 2038
7d9f747b 2039NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2040
06864c44
TF
2041TF/03 Bugzilla 615: When checking the local_parts router precondition
2042 after a local_part_suffix or local_part_prefix option, Exim now
2043 does not use the address's named list lookup cache, since this
2044 contains cached lookups for the whole local part.
2045
65a7d8c3 2046NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2047 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2048
23510047 2049TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2050
7d9f747b 2051NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2052
7d8eec3a 2053NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2054 Patch provided by Jan Srzednicki.
6c588e74 2055
89dec7b6
TF
2056TF/05 Leading white space used to be stripped from $spam_report which
2057 wrecked the formatting. Now it is preserved.
5f28a6e8 2058
a99de90c
TF
2059TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2060 that they are available at delivery time.
2061
e2803e40
TF
2062TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2063
7199e1ee
TF
2064TF/08 TLS error reporting now respects the incoming_interface and
2065 incoming_port log selectors.
2066
e276e04b
TF
2067TF/09 Produce a more useful error message if an SMTP transport's hosts
2068 setting expands to an empty string.
2069
ce552449 2070NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2071 Patch provided by Phil Pennock.
ce552449 2072
e765a0f1 2073NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2074 Patch provided by Richard Godbee.
e765a0f1 2075
4f054c63 2076NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2077 acl_smtp_notquit, added index entry.
4f054c63 2078
7d9f747b
PP
2079NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2080 Patch provided by Eugene Bujak.
24c929a2 2081
7d9f747b
PP
2082NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2083 accept(). Patch provided by Maxim Dounin.
cf73943b 2084
b52bc06e 2085NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2086 Patch provided by Phil Pennock.
b52bc06e 2087
447de4b0
NM
2088NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2089
4c69d561 2090NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2091 Patch provided by Brad "anomie" Jorsch.
4c69d561 2092
d5c39246 2093NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2094 Patch provided by Dean Brooks.
9b989985 2095
0b23848a
TK
2096TK/05 Add native DKIM support (does not depend on external libraries).
2097
8f3414a1 2098NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2099 Patch provided by Graeme Fowler.
e2aacdfd 2100
fb6f955d
NM
2101NM/16 Bugzilla 851: Documentation example syntax fix.
2102
2103NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2104
7d9f747b
PP
2105NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2106 lsearch.
dbb0bf41 2107
7d9f747b
PP
2108NM/19 Bugzilla 745: TLS version reporting.
2109 Patch provided by Phil Pennock.
f3766eb5 2110
7d9f747b
PP
2111NM/20 Bugzilla 167: bool: condition support.
2112 Patch provided by Phil Pennock.
36f12725 2113
7d9f747b
PP
2114NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2115 clients. Patch provided by Phil Pennock.
e6060e2c 2116
7d9f747b
PP
2117NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2118 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2119
7d9f747b
PP
2120NM/23 Bugzilla 687: Fix misparses in eximstats.
2121 Patch provided by Heiko Schlittermann.
d5c13d66 2122
7d9f747b
PP
2123NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2124 Patch provided by Heiko Schlittermann.
b2335c0b 2125
7d9f747b 2126NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2127 plus update to original patch.
f4cd9433 2128
7d9f747b 2129NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2130
7d9f747b
PP
2131NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2132 Patch provided by David Brownlee.
8dc71ab3 2133
7d9f747b 2134NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2135
7d9f747b 2136NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2137
7d9f747b 2138NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2139
7d9f747b 2140NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2141
17792b53 2142NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2143 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2144
7d9f747b
PP
2145NM/33 Bugzilla 898: Transport filter timeout fix.
2146 Patch by Todd Rinaldo.
52383f8f 2147
91576cec 2148NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2149 Patch by Serge Demonchaux.
5ca6d115 2150
7d9f747b
PP
2151NM/35 Bugzilla 39: Base64 decode bug fixes.
2152 Patch by Jakob Hirsch.
baee9eee 2153
7d9f747b 2154NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2155
7d9f747b 2156NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2157
7d9f747b 2158NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2159
7d9f747b 2160NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2161
deafd5b3 2162
47db1125
NM
2163Exim version 4.69
2164-----------------
2165
4b3504d0
TK
2166TK/01 Add preliminary DKIM support. Currently requires a forked version of
2167 ALT-N's libdkim that I have put here:
2168 http://duncanthrax.net/exim-experimental/
2169
2170 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2171 were called 'true' and it seems that C99 defines that as a reserved
2172 keyword to be used with 'bool' variable types. That means you could
2173 not include C99-style headers which use bools without triggering
2174 build errors in sieve.c.
2175
81ea09ca
NM
2176NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2177 as mailq or other aliases. Changed the --help handling significantly
2178 to do whats expected. exim_usage() emits usage/help information.
2179
f13cddcb
SC
2180SC/01 Added the -bylocaldomain option to eximstats.
2181
7d9f747b 2182NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2183
7d9f747b 2184NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2185
7d9f747b 2186NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2187
2188
eb4c0de6
PH
2189Exim version 4.68
2190-----------------
2191
2192PH/01 Another patch from the Sieve maintainer.
2193
6a3bceb1
PH
2194PH/02 When an IPv6 address is converted to a string for single-key lookup
2195 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2196 dots are used instead of colons so that keys in lsearch files need not
2197 contain colons. This was done some time before quoting was made available
2198 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2199 (notated using the quote facility) so as to distinguish them from IPv4
2200 keys. This meant that lookups for IP addresses in host lists did not work
2201 for iplsearch lookups.
2202
2203 This has been fixed by arranging for IPv6 addresses to be expressed with
2204 colons if the lookup type is iplsearch. This is not incompatible, because
2205 previously such lookups could never work.
2206
4c04137d 2207 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2208 ordinary lsearch keys. However, making the change in all cases is
2209 incompatible and would probably break a number of configurations.
2210
2e30fa9d
TK
2211TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2212 version.
2213
0806a9c5
MH
2214MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2215 conversion specification without a maximum field width, thereby enabling
2216 a rogue spamd server to cause a buffer overflow. While nobody in their
2217 right mind would setup Exim to query an untrusted spamd server, an
2218 attacker that gains access to a server running spamd could potentially
2219 exploit this vulnerability to run arbitrary code as the Exim user.
2220
ae276964
TK
2221TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2222 $primary_hostname instead of what libspf2 thinks the hosts name is.
2223
0f2cbd1b
MH
2224MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2225 a directory entry by the name of the lookup key. Previously, if a
2226 symlink pointed to a non-existing file or a file in a directory that
2227 Exim lacked permissions to read, a lookup for a key matching that
2228 symlink would fail. Now it is enough that a matching directory entry
2229 exists, symlink or not. (Bugzilla 503.)
2230
2b85bce7
PH
2231PH/03 The body_linecount and body_zerocount variables are now exported in the
2232 local_scan API.
2233
93655c46
PH
2234PH/04 Added the $dnslist_matched variable.
2235
6c512171
PH
2236PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2237 This means they are set thereafter only if the connection becomes
2238 encrypted.
2239
2240PH/06 Added the client_condition to authenticators so that some can be skipped
2241 by clients under certain conditions.
2242
aa6dc513
PH
2243PH/07 The error message for a badly-placed control=no_multiline_responses left
2244 "_responses" off the end of the name.
2245
a96603a0
PH
2246PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2247
8f240103
PH
2248PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2249 (without spaces) instead of just copying the configuration text.
2250
2251PH/10 Added the /noupdate option to the ratelimit ACL condition.
2252
d677b2f2
PH
2253PH/11 Added $max_received_linelength.
2254
d52120f2
PH
2255PH/12 Added +ignore_defer and +include_defer to host lists.
2256
64f2600a
PH
2257PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2258 way in which PCRE > 7.0 is built.
2259
8669f003
PH
2260PH/14 Implemented queue_only_load_latch.
2261
a4dc33a8
PH
2262PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2263 MAIL command. The effect was to mangle the value on 64-bit systems.
2264
d6a60c0f
PH
2265PH/16 Another patch from the Sieve maintainer.
2266
8f128379
PH
2267PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2268
8932dffe
PH
2269PH/18 If a system quota error occurred while trying to create the file for
2270 a maildir delivery, the message "Mailbox is full" was not appended to the
2271 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2272 only to a quota excession during the actual writing of the file.
d6a60c0f 2273
ddea74fa 2274PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2275 characters?) which causes problems in log lines. The DN values are now
2276 passed through string_printing() before being added to log lines.
2277
ddea74fa 2278PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2279 and InterBase are left for another time.)
2280
ddea74fa
PH
2281PH/21 Added message_body_newlines option.
2282
ce9f225c
PH
2283PH/22 Guard against possible overflow in moan_check_errorcopy().
2284
19897d52
PH
2285PH/23 POSIX allows open() to be a macro; guard against that.
2286
bc64a74d
PH
2287PH/24 If the recipient of an error message contained an @ in the local part
2288 (suitably quoted, of course), incorrect values were put in $domain and
2289 $local_part during the evaluation of errors_copy.
2290
eb4c0de6 2291
b4ed4da0
PH
2292Exim version 4.67
2293-----------------
2294
22ad45c9
MH
2295MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2296 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2297 Jan Srzednicki.
2298
b4ed4da0
PH
2299PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2300 issue a MAIL command.
2301
431b7361
PH
2302PH/02 In an ACL statement such as
2303
2304 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2305
2306 if a client was not listed at all, or was listed with a value other than
2307 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2308 the condition was not true (as it should be), so access was not denied.
2309 The bug was that the ! inversion was incorrectly passed on to the second
2310 item. This has been fixed.
2311
2312PH/03 Added additional dnslists conditions == and =& which are different from
2313 = and & when the dns lookup returns more than one IP address.
2314
83da1223
PH
2315PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2316 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2317
54fc8428
PH
2318PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2319 FSYNC, which compiles an option called disable_fsync that allows for
2320 bypassing fsync(). The documentation is heavily laced with warnings.
2321
34c5e8dd
SC
2322SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2323
bbe15da8
PH
2324PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2325 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2326 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2327 including adding "make clean"; (3) Added -fPIC when compiling the test
2328 dynamically loaded module, to get rid of a warning.
2329
0e8a9471
MH
2330MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2331 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2332 = 0s. The bug is otherwise harmless.
2333
f0872424
PH
2334PH/07 There was a bug in the dovecot authenticator such that the value of
2335 $auth1 could be overwritten, and so not correctly preserved, after a
2336 successful authentication. This usually meant that the value preserved by
2337 the server_setid option was incorrect.
2338
b01dd148
PH
2339PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2340
6bf342e1
PH
2341PH/09 Installed PCRE release 7.0.
2342
273f34d0
PH
2343PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2344 run for batched SMTP input. It is now run at the start of every message
2345 in the batch. While fixing this I discovered that the process information
2346 (output by running exiwhat) was not always getting set for -bs and -bS
2347 input. This is fixed, and it now also says "batched" for BSMTP.
2348
cf8b11a5
PH
2349PH/11 Added control=no_pipelining.
2350
41c7c167
PH
2351PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2352 patch, slightly modified), and move the expansion of helo_data till after
2353 the connection is made in the smtp transport (so it can use these
2354 values).
2355
9c57cbc0
PH
2356PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2357
f3f065bb
PH
2358PH/14 Added log_selector = +pid.
2359
047bdd8c
PH
2360PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2361
0ce9abe6
PH
2362PH/16 Add ${if forany and ${if forall.
2363
0e22dfd1
PH
2364PH/17 Added dsn_from option to vary the From: line in DSNs.
2365
4c590bd1
PH
2366PH/18 Flush SMTP output before performing a callout, unless control =
2367 no_callout_flush is set.
2368
09945f1e
PH
2369PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2370 was true (the default) a successful delivery failed to delete the retry
2371 item, thus causing premature timeout of the address. The bug is now
2372 fixed.
2373
c51b8e75
PH
2374PH/20 Added hosts_avoid_pipelining to the smtp transport.
2375
e28326d8 2376PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2377 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2378 other ACL rejections are.
2379
75b1493f
PH
2380PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2381 with slight modification.
2382
7c5214ec
PH
2383PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2384 draft, changing the syntax and factoring some duplicate code".
2385
4311097e
PH
2386PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2387 for deliveries of the second and subsequent messages over the same SMTP
2388 connection.
2389
29f89cad
PH
2390PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2391 ${reduce, with only minor "tidies".
2392
5e687460
SC
2393SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2394
c3611384
PH
2395PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2396 expansion side effects.
2397
5a11a7b4
PH
2398PH/27 When a message times out after an over-quota error from an Exim-imposed
2399 quota, the bounce message says "mailbox is full". This message was not
2400 being given when it was a system quota that was exceeded. It now should
2401 be the same.
2402
0e20aff9
MH
2403MH/03 Made $recipients available in local_scan(). local_scan() already has
2404 better access to the recipient list through recipients_list[], but
2405 $recipients can be useful in postmaster-provided expansion strings.
2406
ca86f471
PH
2407PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2408 in the case of a MAIL command with additional options following the
2409 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2410 were accidentally chopped off.
2411
a14e5636
PH
2412PH/29 SMTP synchronization checks are implemented when a command is read -
2413 there is a check that no more input is waiting when there shouldn't be
2414 any. However, for some commands, a delay in an ACL can mean that it is
2415 some time before the response is written. In this time, more input might
2416 arrive, invalidly. So now there are extra checks after an ACL has run for
2417 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2418 pipelining has not been advertised.
2419
ec95d1a6
PH
2420PH/30 MH's patch to allow iscntrl() characters to be list separators.
2421
42855d71
PH
2422PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2423 returned in the SMTP response when smtp_return_error_details was false.
2424 This has been fixed.
2425
57c2c631
PH
2426PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2427 instead of the C I/O that was originally supplied, because problems were
2428 reported on Solaris.
2429
58c01c94
PH
2430PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2431 Exim which did not show up earlier: it was assuming that a call to
2432 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2433 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2434 was a macro that became an assignment, so it seemed to work. This has
2435 changed to a proper function call with a void return, hence the compile
2436 error. Exim's code has been fixed.
2437
dee5a20a
PH
2438PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2439 cpus.
2440
d2ee6114
PH
2441PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2442
b2d5182b
PH
2443PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2444
79749a79
PH
2445PH/37 If a message is not accepted after it has had an id assigned (e.g.
2446 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2447 "Completed" line in the log. When some messages of this type were
2448 selected by exigrep, they were listed as "not completed". Others were
2449 picked up by some special patterns. I have improved the selection
2450 criteria to be more general.
79749a79 2451
c456d9bb
PH
2452PH/38 The host_find_failed option in the manualroute router can now be set
2453 to "ignore", to completely ignore a host whose IP address cannot be
2454 found. If all hosts are ignored, the behaviour is controlled by the new
2455 host_all_ignored option.
2456
cd9868ec
PH
2457PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2458 homing or because of multiple MX records with /mx) generated more than
2459 one IP address, and the following item turned out to be the local host,
2460 all the secondary addresses of the first item were incorrectly removed
2461 from the list, along with the local host and any following hosts (which
2462 is what is supposed to happen).
2463
ebeaf996
PH
2464PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2465 whoever called Exim into the -H file. In the case of the daemon it was
2466 behaving confusingly. When first started, it used values for whoever
2467 started the daemon, but after a SIGHUP it used the Exim user (because it
2468 calls itself on a restart). I have changed the code so that it now always
2469 uses the Exim user.
2470
2679d413
PH
2471PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2472 message are rejected with the same error (e.g. no authentication or bad
2473 sender address), and a DATA command is nevertheless sent (as can happen
2474 with PIPELINING or a stupid MUA), the error message that was given to the
2475 RCPT commands is included in the rejection of the DATA command. This is
2476 intended to be helpful for MUAs that show only the final error to their
2477 users.
2478
84024b72
PH
2479PH/42 Another patch from the Sieve maintainer.
2480
8005d38e
SC
2481SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2482 Eximstats - Fixed some broken HTML links and added missing column headers
2483 (Jez Hancock).
2484 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2485 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2486
3298c6c6
SC
2487SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2488
a43a27c5
PH
2489PH/43 Yet another patch from the Sieve maintainer.
2490
58eb016e 2491PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2492 the response to the final '.' that terminates a message, but only in the
2493 case where the client has not sent further data following the '.'
2494 (unfortunately, this is allowed). However, in many cases there won't be
2495 any further data because there won't be any more messages to send. A call
2496 to select() can be used: if it shows that the input is "ready", there is
2497 either input waiting, or the socket has been closed. An attempt to read
2498 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2499 would have sent an OK response which the client would never have see.
563b63fa
PH
2500 This could lead to message repetition. This fix should cure that, at
2501 least in a lot of common cases.
58eb016e 2502
b43a74ea
PH
2503PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2504 advertised in response to EHLO.
2505
b4ed4da0 2506
5dd1517f
PH
2507Exim version 4.66
2508-----------------
2509
2510PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2511 fixed by 4.65/MH/01 (is this a record?) are fixed:
2512
2513 (i) An empty string was always treated as zero by the numeric comparison
2514 operators. This behaviour has been restored.
2515
2516 (ii) It is documented that the numeric comparison operators always treat
2517 their arguments as decimal numbers. This was broken in that numbers
2518 starting with 0 were being interpreted as octal.
2519
2520 While fixing these problems I realized that there was another issue that
2521 hadn't been noticed. Values of message_size_limit (both the global option
2522 and the transport option) were treated as octal if they started with 0.
2523 The documentation was vague. These values are now always treated as
2524 decimal, and I will make that clear in the documentation.
2525
2526
93cfa765
TK
2527Exim version 4.65
2528-----------------
2529
2530TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2531 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2532 versions. (#438)
2533
d6066548
MH
2534MH/01 Don't check that the operands of numeric comparison operators are
2535 integers when their expansion is in "skipping" mode (fixes bug
2536 introduced by 4.64-PH/07).
2537
4362ff0d
PH
2538PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2539 child addresses, Exim now panics and dies. Previously, because the count
2540 is held in a short int, deliveries were likely to be lost. As such a
2541 large number of recipients for a single message is ridiculous
2542 (performance will be very, very poor), I have chosen to impose a limit
2543 rather than extend the field.
2544
93cfa765 2545
944e9e9c
TF
2546Exim version 4.64
2547-----------------
aa41d2de 2548
21d74bd9
TK
2549TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2550 leftover -K file (the existence of which was triggered by #402).
2551 While we were at it, introduced process PID as part of the -K
2552 filename. This should rule out race conditions when creating
2553 these files.
2554
2555TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2556 processing considerably. Previous code took too long for large mails,
2557 triggering a timeout which in turn triggers #401.
2558
2559TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2560 in the DK code in transports.c. sendfile() is not really portable,
2561 hence the _LINUX specificness.
944e9e9c
TF
2562
2563TF/01 In the add_headers option to the mail command in an Exim filter,
2564 there was a bug that Exim would claim a syntax error in any
2565 header after the first one which had an odd number of characters
2566 in the field name.
2567
2b1c6e3a
PH
2568PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2569 callout verification, Exim cached a "reject" for the entire domain. This
2570 is correct for most verifications, but it is not correct for a recipient
2571 verification with use_sender or use_postmaster set, because in that case
2572 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2573 case of MAIL FROM:<> rejection from other early rejections (e.g.
2574 rejection of HELO). When verifying a recipient using a non-null MAIL
2575 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2576 Whatever the result of the callout, the value of the domain cache is
2577 left unchanged (for any other kind of callout, getting as far as trying
2578 RCPT means that the domain itself is ok).
2579
1f872c80
PH
2580PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2581 gcc 4.1.1 threw up.
2582
2583PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2584 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2585 session, the daemon ignores ECONNECT errors and logs others; it now
2586 ignores EPIPE as well.
2587
d203e649
PH
2588PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2589 (quoted-printable decoding).
2590
cc2ed8f7 2591PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2592 later the small subsequent patch to fix an introduced bug.
f951fd57 2593
ddfcd446
PH
2594PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2595
d45b1de8
PH
2596PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2597
2598PH/08 An error is now given if message_size_limit is specified negative.
2599
38a0a95f 2600PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2601 to be given (somewhat) arbitrary names.
38a0a95f 2602
a2405d83
JJ
2603JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2604 in 4.64-PH/09.
2605
2606JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2607 miscellaneous code fixes
2608
6ea85e9a
PH
2609PH/10 Added the log_reject_target ACL modifier to specify where to log
2610 rejections.
2611
26da7e20
PH
2612PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2613 hostname. This is wrong, because it relates to the incoming message (and
2614 probably the interface on which it is arriving) and not to the outgoing
2615 callout (which could be using a different interface). This has been
2616 changed to use the value of the helo_data option from the smtp transport
2617 instead - this is what is used when a message is actually being sent. If
2618 there is no remote transport (possible with a router that sets up host
2619 addresses), $smtp_active_hostname is used.
6ea85e9a 2620
14aa5a05 2621PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2622 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2623 (a) The code assumed that strncpy() returns a negative number on buffer
2624 overflow, which isn't the case. Replaced with Exim's string_format()
2625 function.
2626 (b) There were several signed/unsigned issues. I just did the minimum
2627 hacking in of casts. There is scope for a larger refactoring.
2628 (c) The code used strcasecmp() which is not a standard C function.
2629 Replaced with Exim's strcmpic() function.
2630 (d) The code set only $1; it now sets $auth1 as well.
2631 (e) A simple test gave the error "authentication client didn't specify
2632 service in request". It would seem that Dovecot has changed its
2633 interface. Fortunately there's a specification; I followed it and
2634 changed what the client sends and it appears to be working now.
2635
ff75a1f7
PH
2636PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2637 decoding.
2638
e6f6568e
PH
2639PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2640 address A is aliased to B and C, where B exists and C does not. Without
2641 -v the output is "A verified" because verification stops after a
2642 successful redirection if more than one address is generated. However,
2643 with -v the child addresses are also verified. Exim was outputting "A
2644 failed to verify" and then showing the successful verification for C,
2645 with its parentage. It now outputs "B failed to verify", showing B's
2646 parentage before showing the successful verification of C.
2647
d6f6e0dc
PH
2648PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2649 look up a TXT record in a specific list after matching in a combined
2650 list.
2651
322050c2
PH
2652PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2653 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2654 they consult the DNS. I had assumed they would set it the way they
2655 wanted; and indeed my experiments on Linux seem to show that in some
2656 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2657 To be on the safe side, however, I have now made the interface to
2658 host_find_byname() similar to host_find_bydns(), with an argument
2659 containing the DNS resolver options. The host_find_byname() function now
2660 sets these options at its start, just as host_find_bydns() does. The smtp
2661 transport options dns_qualify_single and dns_search_parents are passed to
2662 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2663 of host_find_byname() use the default settings of RES_DEFNAMES
2664 (qualify_single) but not RES_DNSRCH (search_parents).
2665
08955dd3
PH
2666PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2667 spool_read_header() do less string testing, by means of a preliminary
2668 switch on the second character of optional "-foo" lines. (This is
2669 overdue, caused by the large number of possibilities that now exist.
2670 Originally there were few.) While I was there, I also converted the
2671 str(n)cmp tests so they don't re-test the leading "-" and the first
2672 character, in the hope this might squeeze out yet more improvement.
2673
1eccaa59
PH
2674PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2675 flag allowing group syntax was set by the header_syntax check but not
2676 turned off, possible causing trouble later; (2) The flag was not being
2677 set at all for the header_verify test, causing "group"-style headers to
2678 be rejected. I have now set it in this case, and also caused header_
2679 verify to ignore an empty address taken from a group. While doing this, I
2680 came across some other cases where the code for allowing group syntax
2681 while scanning a header line wasn't quite right (mostly, not resetting
2682 the flag correctly in the right place). These bugs could have caused
2683 trouble for malformed header lines. I hope it is now all correct.
2684
602e59e5
PH
2685PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2686 with the "reply" argument non-NULL. The code, however (which originally
2687 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2688 but it didn't always do it. This confused somebody who was copying the
2689 code for some other use. I have removed all the tests.
2690
411ef850
PH
2691PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2692 feature that was used to support insecure browsers during the U.S. crypto
2693 embargo. It requires special client support, and Exim is probably the
2694 only MTA that supported it -- and would never use it because real RSA is
2695 always available. This code has been removed, because it had the bad
2696 effect of slowing Exim down by computing (never used) parameters for the
2697 RSA_EXPORT functionality.
2698
7befa435
PH
2699PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2700 authenticator to fail if there's a tab character in the incoming data
2701 (there should never be unless someone is messing about, as it's supposed
2702 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2703 if the connection is using TLS or if the remote IP is the same as the
2704 local IP, and the "valid-client-cert option" if a client certificate has
2705 been verified.
2706
48da4259 2707PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2708 authenticators. This can be used for authorization after authentication
2709 succeeds. (In the case of plaintext, it servers for both authentication
2710 and authorization.)
2711
48da4259
PH
2712PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2713 if any retry times were supplied.
2714
d1d5595c
PH
2715PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2716 connection, where there is no client IP address to check. In this
2717 situation, the verify now always succeeds.
2718
0ef732d9
PH
2719PH/25 Applied John Jetmore's -Mset patch.
2720
328895cc
PH
2721PH/26 Added -bem to be like -Mset, but loading a message from a file.
2722
fd700877
PH
2723PH/27 In a string expansion for a processed (not raw) header when multiple
2724 headers of the same name were present, leading whitespace was being
2725 removed from all of them, but trailing whitespace was being removed only
2726 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2727 before concatenation. Completely empty headers in a concatenation (as
2728 before) are ignored.
fd700877 2729
8dce1a6f
PH
2730PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2731 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2732
17af4a17
PH
2733PH/29 [Removed. This was a change that I later backed out, and forgot to
2734 correct the ChangeLog entry (that I had efficiently created) before
2735 committing the later change.]
f6c332bd
PH
2736
2737PH/30 Exim was sometimes attempting to deliver messages that had suffered
2738 address errors (4xx response to RCPT) over the same connection as other
2739 messages routed to the same hosts. Such deliveries are always "forced",
2740 so retry times are not inspected. This resulted in far too many retries
2741 for the affected addresses. The effect occurred only when there were more
2742 hosts than the hosts_max_try setting in the smtp transport when it had
2743 the 4xx errors. Those hosts that it had tried were not added to the list
2744 of hosts for which the message was waiting, so if all were tried, there
2745 was no problem. Two fixes have been applied:
2746
2747 (i) If there are any address or message errors in an SMTP delivery, none
2748 of the hosts (tried or untried) are now added to the list of hosts
2749 for which the message is waiting, so the message should not be a
2750 candidate for sending over the same connection that was used for a
2751 successful delivery of some other message. This seems entirely
2752 reasonable: after all the message is NOT "waiting for some host".
2753 This is so "obvious" that I'm not sure why it wasn't done
2754 previously. Hope I haven't missed anything, but it can't do any
2755 harm, as the worst effect is to miss an optimization.
2756
2757 (ii) If, despite (i), such a delivery is accidentally attempted, the
2758 routing retry time is respected, so at least it doesn't keep
2759 hammering the server.
2760
c1114884
PH
2761PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2762 in ${readsocket because some servers need this prod.
2763
7a0743eb
PH
2764PH/32 Added some extra debug output when updating a wait-xxx database.
2765
0d85fa3f
PH
2766PH/33 The hint "could be header name not terminated by colon", which has been
2767 given for certain expansion errors for a long time, was not being given
2768 for the ${if def:h_colon_omitted{... case.
2769
1bf43b78
PH
2770PH/34 The spec says: "With one important exception, whenever a domain list is
2771 being scanned, $domain contains the subject domain." There was at least
2772 one case where this was not true.
2773
520de300
PH
2774PH/35 The error "getsockname() failed: connection reset by peer" was being
2775 written to the panic log as well as the main log, but it isn't really
2776 panic-worthy as it just means the connection died rather early on. I have
2777 removed the panic log writing for the ECONNRESET error when getsockname()
2778 fails.
2779
48c7f9e2
PH
2780PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2781 runs only) independently of the message's sender address. This meant
2782 that, if the 4xx error was in fact related to the sender, a different
2783 message to the same recipient with a different sender could confuse
4c04137d 2784 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2785 server, but other circumstances could also provoke similar problems.
2786 I have changed the default so that the retry time for these errors is now
2787 based a combination of the sender and recipient addresses. This change
2788 can be overridden by setting address_retry_include_sender=false in the
2789 smtp transport.
2790
99ea1c86
PH
2791PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2792 remote server are returned as part of bounce messages. This was not
2793 happening for LMTP over a pipe (the lmtp transport), but now it is the
2794 same for both kinds of LMTP.
2795
a2042e78
PH
2796PH/38 Despite being documented as not happening, Exim was rewriting addresses
2797 in header lines that were in fact CNAMEs. This is no longer the case.
2798
4fbcfc2e
PH
2799PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2800 and queue runs started by the daemon processed all messages. This has
2801 been fixed so that -R and -S can now usefully be given with -q<time>.
2802
aa41d2de
PH
2803PH/40 Import PCRE release 6.7 (fixes some bugs).
2804
af561417
PH
2805PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2806
3cc66b45
PH
2807PH/42 Give an error if -q is specified more than once.
2808
194cc0e4
PH
2809PH/43 Renamed the variables $interface_address and $interface_port as
2810 $received_ip_address and $received_port, to make it clear that these
2811 values apply to message reception, and not to the outgoing interface when
2812 a message is delivered. (The old names remain recognized, of course.)
2813
a401ddaa
PH
2814PH/44 There was no timeout on the connect() call when using a Unix domain
2815 socket in the ${readsocket expansion. There now is.
2816
4e88a19f
PH
2817PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2818 be meaningful with "accept".
2819
d7d7b289
SC
2820SC/01 Eximstats V1.43
2821 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2822
2823SC/02 Eximstats V1.44
2824 Use a glob alias rather than an array ref in the generated
2825 parser. This improves both readability and performance.
2826
2827SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2828 Collect SpamAssassin and rejection statistics.
2829 Don't display local sender or destination tables unless
2830 there is data to show.
2831 Added average volumes into the top table text output.
2832
2833SC/04 Eximstats V1.46
2834 Collect data on the number of addresses (recipients)
2835 as well as the number of messages.
2836
2837SC/05 Eximstats V1.47
2838 Added 'Message too big' to the list of mail rejection
2839 reasons (thanks to Marco Gaiarin).
2840
2841SC/06 Eximstats V1.48
2842 Mainlog lines which have GMT offsets and are too short to
2843 have a flag are now skipped.
2844
2845SC/07 Eximstats V1.49 (Alain Williams)
2846 Added the -emptyok flag.
2847
2848SC/08 Eximstats V1.50
2849 Fixes for obtaining the IP address from reject messages.
2850
0ea2a468
JJ
2851JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2852 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 2853 whitespace changes from 4.64-PH/27
0ea2a468
JJ
2854
2855JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2856 match 4.64-PH/13
2857
2858JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2859 are found, allow negative numbers in numeric criteria)
2860
2861JJ/06 exipick.20061117.2, added new $message_body_missing variable
2862
2863JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2864 to match changes made in 4.64-PH/43
2865
8a10f5a4
PH
2866PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2867
30e18802
PH
2868PH/47 Put in an explicit test for a DNS lookup of an address record where the
2869 "domain" is actually an IP address, and force a failure. This locks out
2870 those revolvers/nameservers that support "A-for-A" lookups, in
2871 contravention of the specifications.
2872
55728a4f
PH
2873PH/48 When a host name was looked up from an IP address, and the subsequent
2874 forward lookup of the name timed out, the host name was left in
2875 $sender_host_name, contrary to the specification.
d7d7b289 2876
d7837193
PH
2877PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2878 restricted to single-key lookups, Exim was not diagnosing an error if
2879 * or *@ was used with a query-style lookup.
2880
87054a31
PH
2881PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2882
ea2c01d2
MH
2883MH/01 local_scan ABI version incremented to 1.1. It should have been updated
2884 long ago, but noone interested enough thought of it. Let's just say that
2885 the "1.1" means that there are some new functions that weren't there at
2886 some point in the past.
2887
e4fa6968
PH
2888PH/51 Error processing for expansion failure of helo_data from an smtp
2889 transport during callout processing was broken.
2890
56f5d9bd
PH
2891PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
2892 tested/used via the -bh/-bhc/-bs options.
2893
922e1c28
PH
2894PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
2895 bug, fixed in subsequent PCRE releases).
2896
21eb6e72
PH
2897PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
2898 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
2899
a0540757
PH
2900PH/55 Check for a ridiculously long file name in exim_dbmbuild.
2901
944e9e9c 2902
478be7b0
SC
2903Exim version 4.63
2904-----------------
2905
2906SC/01 Use a glob alias rather than an array ref in eximstats generated
2907 parser. This improves both readability and performance.
2908
2909SC/02 Collect SpamAssassin and rejection statistics in eximstats.
2910 Don't display local sender or destination tables in eximstats unless
2911 there is data to show.
2912 Added average volumes into the eximstats top table text output.
2913
2914SC/03 Collect data on the number of addresses (recipients) as well
2915 as the number of messages in eximstats.
2916
2b965a65
TF
2917TF/01 Correct an error in the documentation for the redirect router. Exim
2918 does (usually) call initgroups() when daemonizing.
478be7b0 2919
45b91596
PH
2920TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
2921 with consistent privilege compared to when running as a daemon.
478be7b0 2922
c59f5781
TF
2923TF/03 Note in the spec that $authenticated_id is not set for local
2924 submissions from trusted users.
2925
90fc3069
TF
2926TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
2927 Thanks to Dean Brooks <dean@iglou.com> for the patch.
2928
6083aca0
TF
2929TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
2930 by adding some example configuration directives to the default
2931 configuration file. A little bit of work is required to uncomment the
2932 directives and define how usernames and passwords are checked, but
2933 there is now a framework to start from.
2934
765b530f
PH
2935PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
2936 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
2937 without this. I don't know how relevant this is to other LDAP libraries.
2938
4e167a8c
PH
2939PH/02 Add the verb name to the "unknown ACL verb" error.
2940
4608d683
PH
2941PH/03 Magnus Holmgren's patch for filter_prepend_home.
2942
b8dc3e4a
PH
2943PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
2944
5418e93b
PH
2945PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
2946 directory not expanded when it should be if an expanded home directory
2947 was set for the address (which is overridden by the transport).
2948
b4a9bda2
PH
2949PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
2950 libradius.
2951
45b91596
PH
2952PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
2953 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
2954 because it is too late at that time, and has no effect.
2955
5547e2c5
PH
2956PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
2957 security issue with \' (bugzilla #107). I could not use the
2958 PQescapeStringConn() function, because it needs a PGconn value as one of
2959 its arguments.
2960
dbcef0ea
PH
2961PH/08 When testing addresses using -bt, indicate those final addresses that
2962 are duplicates that would not cause an additional delivery. At least one
2963 person was confused, thinking that -bt output corresponded to deliveries.
2964 (Suppressing duplicates isn't a good idea as you lose the information
2965 about possibly different redirections that led to the duplicates.)
2966
25257489
PH
2967PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
2968 systems where poll() doesn't work, in particular OS X.
2969
c816d124
PH
2970PH/10 Added more information to debugging output for retry time not reached.
2971
a9ccd69a
PH
2972PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
2973 operations in malware.c.
2974
75fa1910
PH
2975PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
2976 signatures.
2977
a7d7aa58
PH
2978PH/13 If write_rejectlog was set false when logging was sent to syslog with
2979 syslog_duplication set false, log lines that would normally be written
2980 both the the main log and to the reject log were not written to syslog at
2981 all.
2982
42119b09
PH
2983PH/14 In the default configuration, change the use of "message" in ACL warn
2984 statements to "add_header".
2985
41609df5
PH
2986PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
2987 not followed by a command (e.g. "seen endif").
2988
a5bd321b
PH
2989PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
2990 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
2991 latter.
2992
e85a7ad5 2993PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
2994 so that it is now:
2995
e85a7ad5
PH
2996 ${if or { \
2997 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
2998 { match{$h_precedence:}{(?i)bulk|list|junk} } \
2999 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3000 }{no}{yes}}
3001
e85a7ad5
PH
3002 The Auto-Submitted: and various List- headers are standardised, whereas I
3003 don't think Precedence: ever was.
5dff5817 3004
d8fe1c03
PH
3005PH/18 Refactored debugging code in route_finduser() to show more information,
3006 in particular, the error code if getpwnam() issues one.
3007
16282d2b
PH
3008PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3009 This is apparently needed in addition to the PH/07 change above to avoid
3010 any possible encoding problems.
3011
35d40a98
PH
3012PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3013 but not after initializing Perl.
3014
034d99ab
PH
3015PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3016 output them only if debugging. By default they are written stderr,
3017 apparently, which is not desirable.
3018
6ec97b1b
PH
3019PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3020 queries.
3021
e22ca4ac
JJ
3022JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3023 --not options
3024
3025JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3026
33d73e3b
PH
3027PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3028 authenticated or an ident call has been made. Suppress the default
3029 values for $authenticated_id and $authenticated_sender (but permit -oMai
3030 and -oMas) when testing with -bh.
3031
9ecb03f3
PH
3032PH/24 Re-jigged the order of the tests in the default configuration so that the
3033 tests for valid domains and recipients precede the DNS black list and CSA
3034 tests, on the grounds that those ones are more expensive.
3035
084efe8d
PH
3036PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3037 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3038 This bug exists in every version of Exim that I still have, right back to
3039 0.12.
3040
366fc9f0
PH
3041PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3042 However, an attempt to turn on case-sensitivity in a regex key by
3043 including (?-i) didn't work because the subject string was already
3044 lowercased, and the effects were non-intuitive. It turns out that a
3045 one-line patch can be used to allow (?-i) to work as expected.
3046
c59f5781 3047
c887c79e
TF
3048Exim version 4.62
3049-----------------
3050
3051TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3052 other effects) broke the use of negated acl sub-conditions.
3053
1cce3af8
PH
3054PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3055 patch).
3056
afb3eaaf
PH
3057PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3058 "Deny" causes Exim to reject the incoming connection with a 554 error.
3059 Unfortunately, if there is a major crisis, such as a disk failure,
3060 tcp-wrappers gives "deny", whereas what one would like would be some
3061 kind of temporary error. A kludge has been added to help with this.
3062 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3063 554 error is used if errno is still zero or contains ENOENT (which occurs
3064 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3065 451 error is used.
3066
e173618b
PH
3067PH/03 Add -lutil to the default FreeBSD LIBS setting.
3068
dd16e114
PH
3069PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3070 errors. Otherwise a message that provokes a temporary error (when other
3071 messages do not) can cause a whole host to time out.
3072
f7fd3850
PH
3073PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3074 addresses were routed directly to files or pipes from a redirect router.
3075 File deliveries just didn't batch; pipe deliveries might have suffered
3076 odd errors.
3077
d87df92c
PH
3078PH/06 A failure to get a lock for a hints database would erroneously always say
3079 "Failed to get write lock", even when it was really a read lock.
3080
7e9f683d
PH
3081PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3082 of 0600. This has been changed to use the value of the lockfile_mode
3083 option (which defaults to 0600).
3084
bfad5236
PH
3085PH/08 Applied small patch from the Sieve maintainer.
3086
01c490df
PH
3087PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3088 folder from quota calculations, a direct delivery into this folder messed
3089 up the contents of the maildirsize file. This was because the regex was
3090 used only to exclude .Trash (or whatever) when the size of the mailbox
3091 was calculated. There was no check that a delivery was happening into an
3092 excluded directory. This bug has been fixed by ignoring all quota
3093 processing for deliveries into excluded directories.
3094
d6629cdc
PH
3095PH/10 Added the maildirfolder_create_regex option to appendfile.
3096
1cce3af8 3097
214e2000
PH
3098Exim version 4.61
3099-----------------
3100
3101PH/01 The code for finding all the local interface addresses on a FreeBSD
3102 system running IPv6 was broken. This may well have applied to all BSD
3103 systems, as well as to others that have similar system calls. The broken
3104 code found IPv4 interfaces correctly, but gave incorrect values for the
3105 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3106 that it would not match correctly against @[] and not recognize the IPv6
3107 addresses as local.
3108
f9daeae0
PH
3109PH/02 The ipliteral router was not recognizing addresses of the form user@
3110 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3111
7e66e54d
PH
3112PH/03 Added disable_ipv6.
3113
c8ea1597
PH
3114PH/04 Changed $reply_address to use the raw form of the headers instead of the
3115 decoded form, because it is most often used to construct To: headers
3116 lines in autoreplies, and the decoded form may well be syntactically
3117 invalid. However, $reply_address has leading white space removed, and all
3118 newlines turned into spaces so that the autoreply transport does not
3119 grumble.
3120
911f6fde
PH
3121PH/05 If group was specified without a user on a router, and no group or user
3122 was specified on a transport, the group from the router was ignored.
3123
47ca6d6c
PH
3124PH/06 Increased the number of ACL variables to 20 of each type, and arranged
3125 for visible compile-time settings that can be used to change these
3126 numbers, for those that want even more. Backwards compatibility with old
3127 spool files has been maintained. However, going back to a previous Exim
3128 release will lost any variables that are in spool files.
3129
ed0e9820
PH
3130PH/07 Two small changes when running in the test harness: increase delay when
3131 passing a TCP/IP connection to a new process, in case the original
3132 process has to generate a bounce, and remove special handling of
3133 127.0.0.2 (sic), which is no longer necessary.
3134
eff37e47
PH
3135PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
3136 be the same on different OS.
3137
1921d2ea
PH
3138PH/09 Moved a debug statement in filter processing to avoid a race problem when
3139 testing.
3140
b3f69ca8
JJ
3141JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
3142 whether --show-vars was specified or not
3143
3144JJ/02 exipick: Added support for new ACL variable spool format introduced
3145 in 4.61-PH/06
3146
424a1c63
PH
3147PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
3148 syntactically invalid From: or Reply-to: line, and a filter used this to
3149 generate an autoreply, and therefore failed to obtain an address for the
3150 autoreply, Exim could try to deliver to a non-existent relative file
3151 name, causing unrelated and misleading errors. What now happens is that
3152 it logs this as a hard delivery error, but does not attempt to create a
3153 bounce message.
3154
7a100415
PH
3155PH/11 The exinext utility has a -C option for testing purposes, but although
3156 the given file was scanned by exinext itself; it wasn't being passed on
3157 when Exim was called.
3158
19b9dc85
PH
3159PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
3160 an end-of-file indication when reading a command response.
3161
309bd837
PH
3162PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
3163 compiled. In many other places in Exim, IPv6 addresses are always
3164 recognized, so I have changed this. It also means that IPv4 domain
3165 literals of the form [IPV4:n.n.n.n] are now always recognized.
3166
59e82a2a
PH
3167PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
3168 used if the router is not running as root, for example, when verifying at
3169 ACL time, or when using -bh. The debugging output from this situation was
3170 non-existent - all you got was a failure to exec. I have made two
3171 changes:
3172
3173 (a) Failures to set uid/gid, the current directory, or a process leader
3174 in a subprocess such as that created by queryprogram now generate
4c04137d 3175 suitable debugging output when -d is set.
59e82a2a
PH
3176
3177 (b) The queryprogram router detects when it is not running as root,
3178 outputs suitable debugging information if -d is set, and then runs
3179 the subprocess without attempting to change uid/gid.
3180
9edc04ce
PH
3181PH/15 Minor change to Makefile for building test_host (undocumented testing
3182 feature).
3183
1349e1e5
PH
3184PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
3185 additional section of a DNS packet that returns MX or SRV records.
3186 Instead, it always explicitly searches for A/AAAA records. This avoids
3187 major problems that occur when a DNS server includes only records of one
3188 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
3189 fixed another bug: if SRV records were looked up and the corresponding
3190 address records were *not* found in the additional section, the port
3191 values from the SRV records were lost.
3192
ea49d0e1
PH
3193PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
3194 using the correct key (the original address) when searching the retry
3195 rules in order to find which one to use for generating the retry hint.
3196
064a94c9
PH
3197PH/18 If quota_warn_message contains a From: header, Exim now refrains from
3198 adding the default one. Similarly, if it contains a Reply-To: header, the
3199 errors_reply_to option, if set, is not used.
3200
727071f8
PH
3201PH/19 When calculating a retry time, Exim used to measure the "time since
3202 failure" by looking at the "first failed" field in the retry record. Now
3203 it does not use this if it is later than than the arrival time of the
3204 message. Instead it uses the arrival time. This makes for better
3205 behaviour in cases where some deliveries succeed, thus re-setting the
3206 "first failed" field. An example is a quota failure for a huge message
3207 when small messages continue to be delivered. Without this change, the
3208 "time since failure" will always be short, possible causing more frequent
3209 delivery attempts for the huge message than are intended.
dd16e114 3210 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 3211
f78eb7c6
PH
3212PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
3213 $1, $2, $3) because the numerical variables can be reset during some
3214 expansion items (e.g. "match"), thereby losing the authentication data.
3215
21c28500
PH
3216PH/21 Make -bV show the size of off_t variables so that the test suite can
3217 decide whether to run tests for quotas > 2G.
3218
3219PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
3220 mailbox_size, and mailbox_filecount in the appendfile transport. If a
3221 filecount value is greater than 2G or if a quota value is greater than 2G
3222 on a system where the size of off_t is not greater than 4, a panic error
3223 is given.
3224
1688f43b
PH
3225PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
3226 never match. The debug and -bh output now contains an explicit error
3227 message indicating a malformed IPv4 address or mask.
3228
3229PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
3230 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
3231 PH/23 above applies.
3232
9675b384
PH
3233PH/25 Do not write to syslog when running in the test harness. The only
3234 occasion when this arises is a failure to open the main or panic logs
3235 (for which there is an explicit test).
3236
6a3f1455
PH
3237PH/26 Added the /no_tell option to "control=freeze".
3238
dac79d3e
PH
3239PH/27 If a host name lookup failed very early in a connection, for example, if
3240 the IP address matched host_lookup and the reverse lookup yielded a name
3241 that did not have a forward lookup, an error message of the form "no IP
3242 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
3243 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 3244
5977a0b3
PH
3245PH/28 An enabling patch from MH: add new function child_open_exim2() which
3246 allows the sender and the authenticated sender to be set when
3247 submitting a message from within Exim. Since child_open_exim() is
3248 documented for local_scan(), the new function should be too.
3249
c91535f3
PH
3250PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
3251 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
3252 results in an empty string is now treated as unset.
3253
0d46a8c8
PH
3254PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
3255
278c6e6c
PH
3256PH/31 Added sender_verify_fail logging option.
3257
2cbb4081
PH
3258PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
3259 needed by RFC 822 but not by RFC 2822 was commented out. I have now
3260 tidied the source and removed it altogether.
3261
3eef829e
PH
3262PH/33 When a queue run was abandoned because the load average was too high, a
3263 log line was always written; now it is written only if the queue_run log
3264 selector is set. In addition, the log line for abandonment now contains
3265 information about the queue run such as the pid. This is always present
3266 in "start" and "stop" lines but was omitted from the "abandon" line.
3267