DKIM: fix buffer overflow in verify
[exim.git] / doc / doc-txt / ChangeLog
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495ae4b0 1Change log file for Exim from version 4.21
f988ce57 2------------------------------------------
446415f5
HSHR
3This document describes *changes* to previous versions, that might
4affect Exim's operation, with an unchanged configuration file. For new
5options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 6
4c57a40e 7
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
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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
06fdb9f7
JH
64JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
65 SMTP connection. Previously, when one had more receipients than the
66 first, an abortive onward connection was made. Move to full support for
67 multiple onward connections in sequence, handling cutthrough connection
68 for all multi-message initiating connections.
69
f83a760f
JH
70JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
71 routers. Previously, a multi-recipient message would fail to match the
72 onward-connection opened for the first recipient, and cause its closure.
73
f1fed05b
JH
74JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
75 a timeout on read on a GnuTLS initiating connection, resulting in the
76 initiating connection being dropped. This mattered most when the callout
77 was marked defer_ok. Fix to keep the two timeout-detection methods
78 separate.
79
051d5efa
JH
80JH/15 Relax results from ACL control request to enable cutthrough, in
81 unsupported situations, from error to silently (except under debug)
82 ignoring. This covers use with PRDR, frozen messages, queue-only and
83 fake-reject.
84
744976d4
JH
85JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
86 metadata, resulting in a crash in free().
87
bbfb5dcd 88
acfc18c3
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89Exim version 4.90
90-----------------
91
92JH/01 Rework error string handling in TLS interface so that the caller in
93 more cases is responsible for logging. This permits library-sourced
94 string to be attached to addresses during delivery, and collapses
95 pairs of long lines into single ones.
96
856d1e16
PP
97PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
98 during configuration. Wildcards are allowed and expanded.
99
b9df1829
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100JH/02 Rework error string handling in DKIM to pass more info back to callers.
101 This permits better logging.
102
875512a3
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103JH/03 Rework the transport continued-connection mechanism: when TLS is active,
104 do not close it down and have the child transport start it up again on
105 the passed-on TCP connection. Instead, proxy the child (and any
106 subsequent ones) for TLS via a unix-domain socket channel. Logging is
107 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 108 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 109
fc3f96af
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110JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
111 identical IP addresses on different listening ports. Will also affect
112 "exiwhat" output.
113
98913c8e
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114PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
115 add noisy ifdef guards to special-case this sillyness.
116 Patch from Bernd Kuhls.
117
8d909960
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118JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
119 than 255 are no longer allowed.
120
7006ee24
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121JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
122 Disable the session-cache too, which might reduce our load. Since we
123 currrectly use a new context for every connection, both as server and
124 client, there is no benefit for these.
125 GnuTLS appears to not support tickets server-side by default (we don't
126 call gnutls_session_ticket_enable_server()) but client side is enabled
127 by default on recent versions (3.1.3 +) unless the PFS priority string
128 is used (3.2.4 +).
129
6e411084
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130PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
131 <https://reproducible-builds.org/specs/source-date-epoch/>.
132
4c2471ca
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133JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
134 the check for any unsuccessful recipients did not notice the limit, and
135 erroneously found still-pending ones.
136
4e910c01
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137JH/08 Pipeline CHUNKING command and data together, on kernels that support
138 MSG_MORE. Only in-clear (not on TLS connections).
139
42055a33
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140JH/09 Avoid using a temporary file during transport using dkim. Unless a
141 transport-filter is involved we can buffer the headers in memory for
142 creating the signature, and read the spool data file once for the
143 signature and again for transmission.
144
eeb35890
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145JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
146 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 147 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 148
b7d3afcf
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149JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
150 case where the routing stage had gathered several addresses to send to
151 a host before calling the transport for the first, we previously failed
152 to close down TLS in the old transport process before passing the TCP
153 connection to the new process. The new one sent a STARTTLS command
154 which naturally failed, giving a failed delivery and bloating the retry
155 database. Investigation and fix prototype from Wolfgang Breyha.
156
40525d07
JH
157JH/12 Fix check on SMTP command input synchronisation. Previously there were
158 false-negatives in the check that the sender had not preempted a response
159 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 160 awareness of the SMTP input buffering.
40525d07 161
f33875c3
PP
162PP/04 Add commandline_checks_require_admin option.
163 Exim drops privileges sanely, various checks such as -be aren't a
164 security problem, as long as you trust local users with access to their
165 own account. When invoked by services which pass untrusted data to
166 Exim, this might be an issue. Set this option in main configuration
167 AND make fixes to the calling application, such as using `--` to stop
168 processing options.
169
a5ffa9b4
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170JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
171 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
172 responses to those, into a single TLS record each way (this usually means
173 a single packet). As a side issue, smtp_enforce_sync now works on TLS
174 connections.
925ac8e4 175
6600985a
PP
176PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
177 affects you only if you're dancing at the edge of the param size limits.
178 If you are, and this message makes sense to you, then: raise the
179 configured limit or use OpenSSL 1.1. Nothing we can do for older
180 versions.
181
ac4d558b
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182JH/14 For the "sock" variant of the malware scanner interface, accept an empty
183 cmdline element to get the documented default one. Previously it was
184 inaccessible.
185
e69636bc
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186JH/15 Fix a crash in the smtp transport caused when two hosts in succession
187 are unsuable for non-message-specific reasons - eg. connection timeout,
188 banner-time rejection.
189
a843a57e
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190JH/16 Fix logging of delivery remote port, when specified by router, under
191 callout/hold.
192
8e041ae0
PP
193PP/06 Repair manualroute's ability to take options in any order, even if one
194 is the name of a transport.
833c70bc
PP
195 Fixes bug 2140.
196
35a04365
HSHR
197HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
198
4226691b
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199JH/17 Change the list-building routines interface to use the expanding-string
200 triplet model, for better allocation and copying behaviour.
201
d185889f
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202JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
203 Previously it was constructed the first time a possibly-matching string
204 was met in the configuration file input during startup; now it is done
205 during compilation.
206
0a6c178c
JH
207JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
208 compatible one, to avoid the (poorly documented) possibility of a config
209 file in the working directory redirecting the DB files, possibly correpting
02745400 210 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 211
fae8970d
JH
212JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
213 cache-hot. Previously, although the result was properly cached, the
214 initial verify call returned a defer.
215
ad1a76fe 216JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
217 the main verify for receipient in uncached-mode.
218
ad1a76fe
JH
219JH/22 Retire historical build files to an "unsupported" subdir. These are
220 defined as "ones for which we have no current evidence of testing".
221
135e9496
JH
222JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
223 if present. Previously it was ignored.
224
f2ed27cf
JH
225JH/24 Start using specified-initialisers in C structure init coding. This is
226 a C99 feature (it's 2017, so now considered safe).
227
7eb0e5d2
JH
228JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
229 if was a fixed-sized field and bitmask ops via macros; it is now more
230 extensible.
231
4f9f4be4
232PP/07 GitHub PR 56: Apply MariaDB build fix.
233 Patch provided by Jaroslav Škarvada.
234
dc4de9cc
PP
235PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
236 during Coverity cleanups [4.87 JH/47]
237 Diagnosis and fix provided by Michael Fischer v. Mollard.
238
ea18931d
JH
239JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
240 the right size to place the terminating semicolon on its own folded
241 line, the header hash was calculated to an incorrect value thanks to
242 the (relaxed) space the fold became.
243
2cee425a
HSHR
244HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
245 and confused the parent.
246
848214f7
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247JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
248 which could crash as a result. This could lead to undeliverable messages.
249
9e0ed81f
JH
250JH/28 Logging: "next input sent too soon" now shows where input was truncated
251 for log purposes.
252
2540f2f8
JH
253JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
254 matters on fast-turnover and PID-randomising systems, which were getting
255 out-of-order delivery.
256
e5ab0ba9
JH
257JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
258 a possibly-overlapping copy. The symptom was that "Remote host closed
259 connection in response to HELO" was logged instead of the actual 4xx
260 error for the HELO.
261
e99a3a6c
JH
262JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
263 Previously only that bufferd was discarded, resulting in SYMTP command
264 desynchronisation.
265
18067c75
JH
266JH/32 DKIM: when a message has multiple signatures matching an identity given
267 in dkim_verify_signers, run the dkim acl once for each. Previously only
268 one run was done. Bug 2189.
269
72934ba7
JH
270JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
271 "panic the current process" to "deliberately defer". The panic log is
272 still written with the problem list name; the mail and reject logs now
273 get a temp-reject line for the message that was being handled, saying
274 something like "domains check lookup or other defer". The SMTP 451
275 message is still "Temporary local problem".
276
625667b6
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277JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
278 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
279 freed. CVE-2017-16943.
280
281HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
282 from SMTP input. Previously it was always done; now only done for DATA
283 and not BDAT commands. CVE-2017-16944.
625667b6 284
d21bf202
JH
285JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
286 to the message (such as an overlong header line). Previously this was
287 not done and we did not exit BDAT mode. Followon from the previous item
288 though a different problem.
289
acfc18c3 290
fd047340 291Exim version 4.89
acfc18c3 292-----------------
4c57a40e 293
9427e879 294JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 295 than -2003 did; needs libidn2 in addition to libidn.
fd047340 296
7b283890
JH
297JH/02 The path option on a pipe transport is now expanded before use.
298
4c57a40e
PP
299PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
300 Patch provided by "Björn", documentation fix added too.
301
5d036699
JH
302JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
303 missing a wire-to-host endian conversion.
304
f4630439
JH
305JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
306 close after a BDAT command line could be taken as a following command,
307 giving a synch failure. Fix by only checking for synch immediately
308 before acknowledging the chunk.
309
f988ce57
JS
310PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
311 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
312 macro. Patches provided by Josh Soref.
313
bd8fbe36
JH
314JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
315 Previously we did not; the RFC seems ambiguous and VRFY is not listed
316 by IANA as a service extension. However, John Klensin suggests that we
317 should.
318
319JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
320 the dkim code may be unix-mode line endings rather than smtp wire-format
321 CRLF, so prepend a CR to any bare LF.
fd047340 322
bd8fbe36 323JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
324 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
325
bd8fbe36
JH
326JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
327 the first were themselves being wrongly included in the feed into dkim
328 processing; with most chunk sizes in use this resulted in an incorrect
329 body hash calculated value.
330
eea19017
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331JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
332 DKIM signature block, for verification. Although advised against by
333 standards it is specifically not ruled illegal.
334
44e6651b
JH
335JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
336
337JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
338 missing a body hash (the bh= tag).
339
340JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
341 It seems that HAProxy sends the Proxy Protocol information in clear and
342 only then does a TLS startup, so do the same.
343
344JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
345 TCP connections (such as for Spamd) unless the daemon successfully set
346 Fast Open mode on its listening sockets. This fixes breakage seen on
347 too-old kernels or those not configured for Fast Open, at the cost of
348 requiring both directions being enabled for TFO, and TFO never being used
349 by non-daemon-related Exim processes.
350
351JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
352 endings, at least on the first header line. Try to canonify any that get
353 past that check, despite the cost.
354
b6040544
JH
355JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
356 now limited to an arbitrary five deep, while parsing addresses with the
357 strip_excess_angle_brackets option enabled.
358
f700ea4d
PP
359PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
360 instead leave the unprompted TLS handshake in socket buffer for the
361 TLS library to consume.
362
da88acae
PP
363PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
364
f6ef9370
PP
365PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
366
90341c71
JH
367JH/16 Drop variables when they go out of scope. Memory management drops a whole
368 region in one operation, for speed, and this leaves assigned pointers
369 dangling. Add checks run only under the testsuite which checks all
370 variables at a store-reset and panics on a dangling pointer; add code
371 explicitly nulling out all the variables discovered. Fixes one known
372 bug: a transport crash, where a dangling pointer for $sending_ip_address
373 originally assigned in a verify callout, is re-used.
374
1ec2ab36
PP
375PP/06 Drop '.' from @INC in various Perl scripts.
376
377PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
378
379PP/08 Reduce a number of compilation warnings under clang; building with
380 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
381 should be warning-free.
382
8b2b9480
PP
383JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
384
385HS/01 Fix portability problems introduced by PP/08 for platforms where
386 realloc(NULL) is not equivalent to malloc() [SunOS et al].
387
d953610f
HSHR
388HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
389 chunk. This allows us to accept broken chunked messages. We need a more
390 general solution here.
391
7dc5f827
PP
392PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
393 already-broken messages in the queue.
394
4bb432cb
PP
395JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
396
3b1a84c8
PP
397JH/19 Fix reference counting bug in routing-generated-address tracking.
398
902fbd69 399
8d042305
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400Exim version 4.88
401-----------------
4c57a40e 402
9094b84b
JH
403JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
404 supports it and a size is available (ie. the sending peer gave us one).
8d042305 405
03d5892b
JH
406JH/02 The obsolete acl condition "demime" is removed (finally, after ten
407 years of being deprecated). The replacements are the ACLs
408 acl_smtp_mime and acl_not_smtp_mime.
409
4b0fe319
JH
410JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
411 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
412 or even an in-clear connection were permitted. Now, if the host lookup
413 was dnssec and dane was requested then the host is only used if the
414 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
415 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
416 if one fails this test.
417 This means that a poorly-configured remote DNS will make it incommunicado;
418 but it protects against a DNS-interception attack on it.
419
789f8a4f
JH
420JH/04 Bug 1810: make continued-use of an open smtp transport connection
421 non-noisy when a race steals the message being considered.
422
23bb6982 423JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 424 self-signed certificate for inbound TLS connections.
23bb6982 425
0bd1b1ed 426JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 427 in rewrites and routers.
0bd1b1ed 428
20b9a2dc
JH
429JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
430 and logged a warning sing 4.83; now they are a configuration file error.
431
05392bbc
JH
432JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
433 (lacking @domain). Apply the same qualification processing as RCPT.
434
1a6230a3
JH
435JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
436
cfab9d68
JH
437JH/10 Support ${sha256:} applied to a string (as well as the previous
438 certificate).
439
98c82a3d
JH
440JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
441 a cutthrough deliver is pending, as we always want to make a connection.
442 This also avoids re-routing the message when later placing the cutthrough
443 connection after a verify cache hit.
444 Do not update it with the verify result either.
445
446JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
447 when routing results in more than one destination address.
448
ae8386f0
JH
449JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
450 signing (which inhibits the cutthrough capability). Previously only
451 the presence of an option was tested; now an expansion evaluating as
452 empty is permissible (obviously it should depend only on data available
453 when the cutthrough connection is made).
454
0d9fa8c0
JH
455JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
456 the relevant preceding SMTP command did not note the pipelining mode.
457
3581f321
JH
458JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
459 Previously they were not counted.
460
ef3a1a30
JH
461JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
462 as one having no matching records. Previously we deferred the message
463 that needed the lookup.
464
4c04137d 465JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
466 distinguished as "(=".
467
1435d4b2
JH
468JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
469 for missing MX records. Previously it only worked for missing A records.
470
eea0defe
JB
471JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
472
473JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
474 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 475
4c04137d 476JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
477 even for a "none" policy. Patch from Tony Meyer.
478
1c788856
JH
479JH/22 Fix continued use of a connection for further deliveries. If a port was
480 specified by a router, it must also match for the delivery to be
481 compatible.
482
e3b1f624
JH
483JH/23 Bug 1874: fix continued use of a connection for further deliveries.
484 When one of the recipients of a message was unsuitable for the connection
485 (has no matching addresses), we lost track of needing to mark it
486 deferred. As a result mail would be lost.
487
a57ce043
JH
488JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
489
f59aaaaa 490JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
491 takes up less space and should be simpler to maintain. Merge the ACL
492 condition decode tables also, with similar effect.
d7bed771 493
d1f9fb42
JH
494JH/26 Fix problem with one_time used on a redirect router which returned the
495 parent address unchanged. A retry would see the parent address marked as
496 delivered, so not attempt the (identical) child. As a result mail would
497 be lost.
498
92b0827a
JH
499JH/27 Fix a possible security hole, wherein a process operating with the Exim
500 UID can gain a root shell. Credit to http://www.halfdog.net/ for
501 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
502 itself :(
503
ddf1b11a
JH
504JH/28 Enable {spool,log} filesystem space and inode checks as default.
505 Main config options check_{log,spool}_{inodes,space} are now
506 100 inodes, 10MB unless set otherwise in the configuration.
507
3cc3f762
JH
508JH/29 Fix the connection_reject log selector to apply to the connect ACL.
509 Previously it only applied to the main-section connection policy
510 options.
511
ae5afa61
JH
512JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
513
317e40ac
PP
514PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
515 by me. Added RFC7919 DH primes as an alternative.
516
8b0fb68e
PP
517PP/02 Unbreak build via pkg-config with new hash support when crypto headers
518 are not in the system include path.
519
ad7fc6eb 520JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 521 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
522 Exim did stdio operations after fclose. This was exposed by a recent
523 change which nulled out the file handle after the fclose.
ad7fc6eb 524
ee5b1e28
JH
525JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
526 signed directly by the cert-signing cert, rather than an intermediate
527 OCSP-signing cert. This is the model used by LetsEncrypt.
528
5ddc9771
JH
529JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
530
8d73599f
JH
531HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
532 an incoming connection.
533
446415f5
HSHR
534HS/02 Bug 1802: Do not half-close the connection after sending a request
535 to rspamd.
536
8e53a4fc
HSHR
537HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
538 fallback to "prime256v1".
8d042305 539
87cb4a16 540JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 541 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
542
543
0d9b78be
JH
544Exim version 4.87
545-----------------
4c57a40e 546
82d14d6a
JH
547JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
548 and 3.4.4 - once the server is enabled to respond to an OCSP request
549 it does even when not requested, resulting in a stapling non-aware
550 client dropping the TLS connection.
0d9b78be 551
6c6d6e48
TF
552TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
553 support variable-length bit vectors. No functional change.
554
ac881e27
TF
555TF/02 Improve the consistency of logging incoming and outgoing interfaces.
556 The I= interface field on outgoing lines is now after the H= remote
557 host field, same as incoming lines. There is a separate
558 outgoing_interface log selector which allows you to disable the
559 outgoing I= field.
560
c8899c20
JH
561JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
562 If not running log_selector +smtp_connection the mainlog would be held
563 open indefinitely after a "too many connections" event, including to a
564 deleted file after a log rotate. Leave the per net connection logging
565 leaving it open for efficiency as that will be quickly detected by the
566 check on the next write.
567
f1b81d81
HSHR
568HS/01 Bug 1671: Fix post transport crash.
569 Processing the wait-<transport> messages could crash the delivery
570 process if the message IDs didn't exist for some reason. When
571 using 'split_spool_directory=yes' the construction of the spool
572 file name failed already, exposing the same netto behaviour.
573
f38917cc
JH
574JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
575 mime_regex ACL conditions.
576
895fbaf2
JH
577JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
578 to DSN fail messages (bounces): remote IP, remote greeting, remote response
579 to HELO, local diagnostic string.
580
805bb5c3
JH
581JH/05 Downgrade message for a TLS-certificate-based authentication fail from
582 log line to debug. Even when configured with a tls authenticator many
583 client connections are expected to not authenticate in this way, so
584 an authenticate fail is not an error.
585
56c2a7be
HSHR
586HS/02 Add the Exim version string to the process info. This way exiwhat
587 gives some more detail about the running daemon.
588
4c04137d 589JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
590 matter for fast-change records such as DNSBLs.
591
6f6dedcc
JH
592JH/07 Bug 1678: Always record an interface option value, if set, as part of a
593 retry record, even if constant. There may be multiple transports with
594 different interface settings and the retry behaviour needs to be kept
595 distinct.
596
0f557e90
JH
597JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
598
599JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
600
ec0eb1a3
JH
601JH/10 Bug 840: fix log_defer_output option of pipe transport
602
41e93589
JH
603JH/11 Bug 830: use same host for all RCPTS of a message, even under
604 hosts_randomize. This matters a lot when combined with mua_wrapper.
605
98b98887 606JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
607 ${quote_pgsql:<string>} operator.
608
98b98887
JH
609JH/13 Bug 1708: avoid misaligned access in cached lookup.
610
858e91c2
JH
611JH/14 Change header file name for freeradius-client. Relevant if compiling
612 with Radius support; from the Gentoo tree and checked under Fedora.
613
614JH/15 Bug 1712: Introduce $prdr_requested flag variable
615
6ff55e50
JH
616JH/16 Bug 1714: Permit an empty string as expansion result for transport
617 option transport_filter, meaning no filtering.
618
3b957582
JB
619JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
620
23f3dc67
JH
621JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
622 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 623 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
624 If a server certificate is not supplied (via tls_certificate) an error is
625 logged, and clients will find TLS connections fail on startup. Presumably
626 they will retry in-clear.
627 Packagers of Exim are strongly encouraged to create a server certificate
628 at installation time.
629
240c288f
JH
630HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
631 with the $config_file variable.
632
5ef5dd52
JB
633JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
634 in transport context, after the attempt, and per-recipient. The latter type
635 is per host attempted. The event data is the error message, and the errno
636 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 637 and the trailing two digits of the smtp 4xx response.
5ef5dd52 638
e161710d
GF
639GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
640 to write to mainlog (or rejectlog, paniclog) in the window between file
641 creation and permissions/ownership being changed. Particularly affects
642 installations where exicyclog is run as root, rather than exim user;
643 result is that the running daemon panics and dies.
644
a159f203
JH
645JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
646
7f06582c
JH
647JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
648 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
649 "pri" and "weight". Note that the previous implicit priority given by the
650 list order is no longer honoured.
651
4c04137d 652JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
653 for DKIM processing.
654
f0989ec0
JH
655JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
656 by defining SUPPORT_SOCKS.
74f150bf 657
cee5f132
JH
658JH/26 Move PROXY support from Experimental to mainline, enabled for a build
659 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
660 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
661 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 662
8c5d388a
JH
663JH/27 Move Internationalisation support from Experimental to mainline, enabled
664 for a build by defining SUPPORT_I18N
665
2d8d625b
JH
666JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
667 of the query string, and make ${quote_redis:} do that quoting.
668
0cbf2b82
JH
669JH/29 Move Events support from Experimental to mainline, enabled by default
670 and removable for a build by defining DISABLE_EVENT.
671
f2f2c91b
JH
672JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
673
ce325893
JH
674JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
675 cached by the daemon.
676
de78e2d5
JH
677JH/32 Move Redis support from Experimental to mainline, enabled for a build
678 by defining LOOKUP_REDIS. The libhiredis library is required.
679
379ba7d0
JH
680JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
681 keys are given for lookup.
682
f444c2c7
JH
683JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
684 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
685 only supported when built with TLS support. The PolarSSL SHA routines
686 are still used when the TLS library is too old for convenient support.
f444c2c7 687
a57b6200
JH
688JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
689 openssl_options), for security. OpenSSL forces this from version 1.1.0
690 server-side so match that on older versions.
691
07c73177 692JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 693 allocation for $value could be released as the expansion processing
07c73177 694 concluded, but leaving the global pointer active for it.
fa01e4f8 695
4f6ae5c3
JH
696JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
697 and to use the domains and local_parts ACL conditions.
698
1bc460a6
JH
699JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
700 incorrectly not doubled on cutthrough transmission, hence seen as a
701 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 702 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
703 via the normal store-and-forward channel. This could result in duplicates
704 received - but deduplicating mailstores were liable to retain only the
705 initial truncated version.
706
ab9152ff 707JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 708
67e87fcf
JH
709JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
710
ab9152ff
JH
711JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
712 we're in there, support oversigning also; bug 1309.
713
af483912
JH
714JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
715
bc3c7bb7 716HS/04 Add support for keep_environment and add_environment options.
df3def24 717
13559da6
JH
718JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
719 either intentional arithmetic overflow during PRNG, or testing config-
720 induced overflows.
721
59eaad2b
JH
722JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
723 delivery resulted in actual delivery. Cancel cutthrough before DATA
724 stage.
725
f9334a28
JH
726JH/45 Fix cutthrough, when connection not opened by verify and target hard-
727 rejects a recipient: pass the reject to the originator.
728
dc8091e7
JH
729JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
730 Many were false-positives and ignorable, but it's worth fixing the
731 former class.
732
dfe7d917
JH
733JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
734 for the new environment-manipulation done at startup. Move the routines
735 from being local to tls.c to being global via the os.c file.
736
93cc2d6e
JH
737JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
738 an extract embedded as result-arg for a map, the first arg for extract
739 is unavailable so we cannot tell if this is a numbered or keyed
740 extraction. Accept either.
741
13559da6 742
9c695f6d
JH
743Exim version 4.86
744-----------------
4c57a40e 745
9c695f6d
JH
746JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
747 expanded.
748
506900af
JH
749JH/02 The smtp transport option "multi_domain" is now expanded.
750
ad07e9ad
JH
751JH/03 The smtp transport now requests PRDR by default, if the server offers
752 it.
753
01a4a5c5 754JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 755 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
756 can be used to disable this per-host. The build option
757 EXPERIMENTAL_CERTNAMES is withdrawn.
758
cb1d7830 759JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 760 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
761 For GnuTLS, only version 3.0.20 or later.
762
610ff438 763JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
764 (but not required) by default. The verification status is now logged by
765 default, for both outbound TLS and client-certificate supplying inbound
766 TLS connections
610ff438 767
f926e272
JH
768JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
769 sites use this now.
770
50dc7409
JH
771JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
772 Status Notification (bounce) messages are now MIME format per RFC 3464.
773 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
774 under the control of the dsn_advertise_hosts option, and routers may
775 have a dsn_lasthop option.
776
0f0c8159
JH
777JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
778 default, modifiable by a malware= option. The list separator for
23763898 779 the options can now be changed in the usual way. Bug 68.
4e71661f 780
1ad6489e
JH
781JH/10 The smtp_receive_timeout main option is now expanded before use.
782
aeaf5db3
JH
783JH/11 The incoming_interface log option now also enables logging of the
784 local interface on delivery outgoing connections.
785
5032d1cf
JH
786JH/12 The cutthrough-routing facility now supports multi-recipient mails,
787 if the interface and destination host and port all match.
788
7e8360e6
JH
789JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
790 /defer_ok option.
791
c5f280e2
AL
792JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
793 Patch from Andrew Lewis.
794
fd4d8871 795JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 796 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
797 modifiers per server. Patch originally by <rommer@active.by>.
798
799JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
800 and remote servers. Remote servers can be IPv6 addresses, and
801 specify a port-range.
fd4d8871 802
23763898
JH
803JH/17 Bug 68: The spamd_address main option now supports an optional
804 timeout value per server.
805
2ad78978
JH
806JH/18 Bug 1581: Router and transport options headers_add/remove can
807 now have the list separator specified.
808
8a512ed5 809JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 810 option values.
8a512ed5 811
82c0c8ea 812JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
813 under OpenSSL.
814
cc00f4af
JH
815JH/21 Support for the A6 type of dns record is withdrawn.
816
82c0c8ea
JH
817JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
818 rather than the verbs used.
819
b980ed83
JH
820JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
821 from 255 to 1024 chars.
822
6c9ed72e
JH
823JH/24 Verification callouts now attempt to use TLS by default.
824
cfab9d68 825HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 826 are generic router options now. The defaults didn't change.
50dc7409 827
f846c8f5
JH
828JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
829 Original patch from Alexander Shikoff, worked over by JH.
830
fd4c285c
HSHR
831HS/02 Bug 1575: exigrep falls back to autodetection of compressed
832 files if ZCAT_COMMAND is not executable.
833
4c04137d 834JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 835
d2a2c69b
JH
836JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
837
8241d8dd
JH
838JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
839 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 840 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
841 (and we were inconsistent anyway for A-only vs AAAA+A).
842
1f12df4d
JH
843JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
844
1f155f8e
JH
845JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
846 when evaluating $sender_host_dnssec.
847
1705dd20
JH
848JH/31 Check the HELO verification lookup for DNSSEC, adding new
849 $sender_helo_dnssec variable.
850
038597d2
PP
851JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
852
474f71bf
JH
853JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
854
7137ca4b
JH
855JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
856
dcb1095c
JH
857JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
858 documented as working, but never had. Support all but $spam_report.
859
2f460950
JH
860JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
861 added for tls authenticator.
862
2f680c0c
HSHR
863HS/03 Add perl_taintmode main config option
864
9c695f6d 865
e449c3b0
TL
866Exim version 4.85
867-----------------
4c57a40e 868
e449c3b0
TL
869TL/01 When running the test suite, the README says that variables such as
870 no_msglog_check are global and can be placed anywhere in a specific
871 test's script, however it was observed that placement needed to be near
872 the beginning for it to behave that way. Changed the runtest perl
873 script to read through the entire script once to detect and set these
874 variables, reset to the beginning of the script, and then run through
875 the script parsing/test process like normal.
876
ac20058f
TL
877TL/02 The BSD's have an arc4random API. One of the functions to induce
878 adding randomness was arc4random_stir(), but it has been removed in
879 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
880 function when detected.
881
a9b8ec8b
JH
882JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
883 cause callback expansion.
884
6286d7c4
TL
885TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
886 syntax errors in an expansion can be treated as a string instead of
887 logging or causing an error, due to the internal use of bool_lax
888 instead of bool when processing it.
889
0f06b4f2 890JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
891 server certificates when making smtp deliveries.
892
be36e572
JH
893JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
894
ac4ef9bd
JH
895JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
896
0eb51736
TL
897TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
898
c713ca4b
TL
899TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
900 Merged patch from Sebastian Wiedenroth.
e449c3b0 901
bd21a787
WB
902JH/05 Fix results-pipe from transport process. Several recipients, combined
903 with certificate use, exposed issues where response data items split
904 over buffer boundaries were not parsed properly. This eventually
905 resulted in duplicates being sent. This issue only became common enough
4c04137d 906 to notice due to the introduction of connection certificate information,
bd21a787
WB
907 the item size being so much larger. Found and fixed by Wolfgang Breyha.
908
8bc732e8
JH
909JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
910 size buffer was used, resulting in syntax errors when an expansion
911 exceeded it.
912
a7fec7a7
JH
913JH/07 Add support for directories of certificates when compiled with a GnuTLS
914 version 3.3.6 or later.
915
4c04137d 916JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
917 is EXPERIMENTAL_EVENT, the main-configuration and transport options
918 both become "event_action", the variables become $event_name, $event_data
aec45841 919 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
920 routers, transports and related events. The tls:cert event is now also
921 raised for inbound connections, if the main configuration event_action
922 option is defined.
774ef2d7 923
eca4debb
TL
924TL/06 In test suite, disable OCSP for old versions of openssl which contained
925 early OCSP support, but no stapling (appears to be less than 1.0.0).
926
8d692470
JH
927JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
928 server certificate names available under the smtp transport option
929 "tls_verify_cert_hostname" now do not permit multi-component wildcard
930 matches.
931
e9477a08
JH
932JH/10 Time-related extraction expansions from certificates now use the main
933 option "timezone" setting for output formatting, and are consistent
934 between OpenSSL and GnuTLS compilations. Bug 1541.
935
ad4c5ff9
JH
936JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
937 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
938
939JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
940 include certificate info, eximon was claiming there were spoolfile
941 syntax errors.
942
3394b36a 943JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
944
945JH/14 Log delivery-related information more consistently, using the sequence
946 "H=<name> [<ip>]" wherever possible.
947
3394b36a
TL
948TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
949 are problematic for Debian distribution, omit them from the release
950 tarball.
951
ad4c5ff9
JH
952JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
953
4c04137d 954JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
955 Bug 1561.
956
957JH/17 Fix a null-indirection in certextract expansions when a nondefault
958 output list separator was used.
959
8bc732e8 960
1f0ebb98
TL
961Exim version 4.84
962-----------------
09728d20
TL
963TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
964 checkers that were complaining about end of non-void function with no
965 return.
1f0ebb98 966
a612424f 967JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 968 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
969
970JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
971
972TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 973 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 974
1f0ebb98 975
c0e56233
TF
976Exim version 4.83
977-----------------
978
979TF/01 Correctly close the server side of TLS when forking for delivery.
980
981 When a message was received over SMTP with TLS, Exim failed to clear up
982 the incoming connection properly after forking off the child process to
983 deliver the message. In some situations the subsequent outgoing
984 delivery connection happened to have the same fd number as the incoming
985 connection previously had. Exim would try to use TLS and fail, logging
986 a "Bad file descriptor" error.
987
7245734e
TF
988TF/02 Portability fix for building lookup modules on Solaris when the xpg4
989 utilities have not been installed.
990
fd5dad68
JH
991JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
992 temporary space as the ACL may create new global variables.
993
5428a946
TL
994TL/01 LDAP support uses per connection or global context settings, depending
995 upon the detected version of the libraries at build time.
996
a3c86431
TL
997TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
998 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
999 were a direct connection from the outside internet. PPv2 support was
1000 updated based on HAProxy spec change in May 2014.
a3c86431 1001
aa26e137
JH
1002JH/02 Add ${listextract {number}{list}{success}{fail}}.
1003
5a1b8443
WB
1004TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1005 Properly escape header and check for NULL return.
1006
72c9e342
PP
1007PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1008 not dns_use_dnssec.
1009
76f44207
WB
1010JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1011
770747fd
MFM
1012TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1013 characters in header names, implemented as a verify condition.
1014 Contributed by Michael Fischer v. Mollard.
1015
8ddef691 1016TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1017 results permerror and temperror. Previous values are deprecated but
1018 still accepted. In a future release, err_perm and err_temp will be
1019 completely removed, which will be a backward incompatibility if the
1020 ACL tests for either of these two old results. Patch contributed by
8ddef691 1021 user bes-internal on the mailing list.
c0e56233 1022
b9c2e32f
AR
1023JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1024
e45a1c37
JH
1025JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1026 selectors, in both main and reject logs.
1027
67d81c10
JH
1028JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1029 failed delivery.
1030
b1f8e4f8
JH
1031JH/07 Add malware type "sock" for talking to simple daemon.
1032
511a6c14 1033JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1034
1035JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1036 routers/transports under cutthrough routing.
214042d2 1037
51c7471d
JH
1038JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1039 numbers. Touch up "bool" conditional to keep the same definition.
1040
3695be34
TL
1041TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1042
1e06383a
TL
1043JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1044
76146973
JH
1045JH/12 Expand items in router/transport headers_add or headers_remove lists
1046 individually rather than the list as a whole. Bug 1452.
1047
1048 Required for reasonable handling of multiple headers_ options when
1049 they may be empty; requires that headers_remove items with embedded
1050 colons must have them doubled (or the list-separator changed).
1051
8c8b8274
TL
1052TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1053 view the policy declared in the DMARC record. Currently, $dmarc_status
1054 is a combined value of both the record presence and the result of the
1055 analysis.
b1f8e4f8 1056
35aba663
JH
1057JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1058
8c51eead 1059JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1060 dnslookup router and the smtp transport (applying to the forward
1061 lookup).
8c51eead 1062
deae092e
HS
1063TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1064 of ldap servers used for a specific lookup. Patch provided by Heiko
1065 Schlichting.
35aba663 1066
fd3b6a4a 1067JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1068 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1069
8d91c6dc
LT
1070TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1071 Patch submitted by Lars Timman.
1072
2b4a568d
JH
1073JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1074
d2af03f4
HS
1075TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1076 Requires trusted mode and valid format message id, aborts otherwise.
1077 Patch contributed by Heiko Schlichting.
1078
9d1c15ef
JH
1079JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1080 certextract with support for various fields. Bug 1358.
1081
44662487
JH
1082JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1083 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1084 hosts_request_ocsp.
1085
ed3bba5f 1086JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1087 operate on certificate variables to give certificate fingerprints
9ef9101c 1088 Also new ${sha256:cert_variable}.
44662487 1089
8ccd00b1
JH
1090JH/23 The PRDR feature is moved from being Experimental into the mainline.
1091
8ded8589
TL
1092TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1093 Christian Aistleitner.
1094
f2de3a33
JH
1095JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1096
6eb02f88
TL
1097TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1098 file. Patch from Wolfgang Breyha.
1099
00bff6f6
JH
1100JH/25 Expand the coverage of the delivery $host and $host_address to
1101 client authenticators run in verify callout. Bug 1476.
1102
071c51f7
JH
1103JH/26 Port service names are now accepted for tls_on_connect_ports, to
1104 align with daemon_smtp_ports. Bug 72.
1105
a6d4c44e
TF
1106TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1107 support and error reporting did not work properly.
1108
3ae173e7
ACK
1109TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1110 and is readable. Patch from Andrew Colin Kissa.
1111
c13d09b8
TL
1112TL/14 Enhance documentation of ${run expansion and how it parses the
1113 commandline after expansion, particularly in the case when an
1114 unquoted variable expansion results in an empty value.
1115
0df4ab80
JH
1116JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1117
66be95e0
PP
1118PP/02 Fix internal collision of T_APL on systems which support RFC3123
1119 by renaming away from it. Addresses GH issue 15, reported by
1120 Jasper Wallace.
1121
1bd0d12b
JH
1122JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1123
0de7239e
TL
1124TL/15 SECURITY: prevent double expansion in math comparison functions
1125 (can expand unsanitized data). Not remotely exploitable.
1126 CVE-2014-2972
1127
fd3b6a4a 1128
2c422e6f 1129Exim version 4.82
98a90c36
PP
1130-----------------
1131
1132PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1133
12f69989
PP
1134PP/02 Make -n do something, by making it not do something.
1135 When combined with -bP, the name of an option is not output.
1136
54c90be1
PP
1137PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1138 by GnuTLS.
1139
1f4a55da
PP
1140PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1141 $sender_host_name and config options to manage this, and basic check
1142 routines.
1143
13363eba 1144PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1145
66645890 1146PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1147 (Only plugin which currently uses this is kerberos4, which nobody should
1148 be using, but we should make it available and other future plugins might
1149 conceivably use it, even though it would break NAT; stuff *should* be
1150 using channel bindings instead).
66645890 1151
a3fb9793 1152PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1153 name; added for Sendmail compatibility; requires admin caller.
1154 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1155 just ignore it); requires trusted caller.
a3fb9793 1156 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1157 Bugzilla 1117.
a3fb9793 1158
d27f98fe 1159TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1160
6822b909
TL
1161TL/02 Add +smtp_confirmation as a default logging option.
1162
e7568d51
TL
1163TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1164 Patch by Magnus Holmgren from 2007-02-20.
1165
ae0e32ee 1166TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1167 Bugzilla 1283 - Spec typo.
97f42f10 1168 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1169
1170TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1171
e2658fff
TL
1172TL/06 Add Experimental DMARC support using libopendmarc libraries.
1173
83712b39
TL
1174TL/07 Fix an out of order global option causing a segfault. Reported to dev
1175 mailing list by by Dmitry Isaikin.
1176
976b7e9f
JH
1177JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1178
be4a1376
JH
1179JH/02 Support "G" suffix to numbers in ${if comparisons.
1180
ec4b68e5
PP
1181PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1182
d7148a07
NM
1183NM/01 Bugzilla 1197 - Spec typo
1184 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1185
585121e2 1186JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1187
2519e60d
TL
1188PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1189 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1190 function.
a5f239e4 1191
13d08c90
PP
1192PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1193 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1194
bef3ea7f
JH
1195JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1196 "acl {{name}{arg}...}", and optional args on acl condition
1197 "acl = name arg..."
a5f239e4 1198
846726c5
JH
1199JH/05 Permit multiple router/transport headers_add/remove lines.
1200
3a796370
JH
1201JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1202
ea722490 1203JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1204 Performance patch from Paul Fisher. Bugzilla 1262.
1205
b1b05573
JH
1206JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1207 Bugzilla 884.
1208
362145b5
JH
1209JH/09 Add $headers_added variable, with content from use of ACL modifier
1210 add_header (but not yet added to the message). Bugzilla 199.
1211
3c0a92dc
JH
1212JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1213 Pulled from Bugzilla 817 by Wolfgang Breyha.
1214
6d7c6175
PP
1215PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1216 CVE-2012-5671
e78e6ecf 1217 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1218
6f123593
JH
1219JH/11 Add A= logging on delivery lines, and a client_set_id option on
1220 authenticators.
1221
c8e2fc1e
JH
1222JH/12 Add optional authenticated_sender logging to A= and a log_selector
1223 for control.
1224
005ac57f
PP
1225PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1226
3f1df0e3
PP
1227PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1228 advertise SMTP AUTH mechanism to us, instead of a generic
1229 protocol violation error. Also, make Exim more robust to bad
1230 data from the Dovecot auth socket.
1231
67bd1ab3
TF
1232TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1233
1234 When a queue runner is handling a message, Exim first routes the
1235 recipient addresses, during which it prunes them based on the retry
1236 hints database. After that it attempts to deliver the message to
1237 any remaining recipients. It then updates the hints database using
1238 the retry rules.
1239
1240 So if a recipient address works intermittently, it can get repeatedly
1241 deferred at routing time. The retry hints record remains fresh so the
1242 address never reaches the final cutoff time.
1243
1244 This is a fairly common occurrence when a user is bumping up against
1245 their storage quota. Exim had some logic in its local delivery code
1246 to deal with this. However it did not apply to per-recipient defers
1247 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1248
1ddeb334
TF
1249 This change adds a proper retry rule check during routing so that the
1250 final cutoff time is checked against the message's age. We only do
1251 this check if there is an address retry record and there is not a
1252 domain retry record; this implies that previous attempts to handle
1253 the address had the retry_use_local_parts option turned on. We use
1254 this as an approximation for the destination being like a local
1255 delivery, as in LMTP.
67bd1ab3
TF
1256
1257 I suspect this new check makes the old local delivery cutoff check
1258 redundant, but I have not verified this so I left the code in place.
1259
326cdc37
TF
1260TF/02 Correct gecos expansion when From: is a prefix of the username.
1261
1262 Test 0254 submits a message to Exim with the header
1263
1264 Resent-From: f
1265
1266 When I ran the test suite under the user fanf2, Exim expanded
1267 the header to contain my full name, whereas it should have added
1268 a Resent-Sender: header. It erroneously treats any prefix of the
1269 username as equal to the username.
1270
1271 This change corrects that bug.
1272
f62514b3
GF
1273GF/01 DCC debug and logging tidyup
1274 Error conditions log to paniclog rather than rejectlog.
1275 Debug lines prefixed by "DCC: " to remove any ambiguity.
1276
eb505532
TF
1277TF/03 Avoid unnecessary rebuilds of lookup-related code.
1278
14c7b357
PP
1279PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1280 Bug spotted by Jeremy Harris; was flawed since initial commit.
1281 Would have resulted in OCSP responses post-SNI triggering an Exim
1282 NULL dereference and crash.
1283
94eaf700
PP
1284JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1285
6f5a440a
PP
1286PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1287 Bug detection, analysis and fix by Samuel Thibault.
1288 Bugzilla 1331, Debian bug #698092.
1289
514ee161
SC
1290SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1291
fd98a5c6
JH
1292JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1293 Server implementation by Todd Lyons, client by JH.
1294 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1295 config variable "prdr_enable" controls whether the server
1296 advertises the facility. If the client requests PRDR a new
1297 acl_data_smtp_prdr ACL is called once for each recipient, after
1298 the body content is received and before the acl_smtp_data ACL.
4c04137d 1299 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1300 on the smtp transport, and the server advertisement.
1301 Default client logging of deliveries and rejections involving
1302 PRDR are flagged with the string "PRDR".
1303
035c7f1e
PP
1304PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1305 fclose(). Diagnosis by Todd Lyons.
1306
ff284120
PP
1307PP/17 Update configure.default to handle IPv6 localhost better.
1308 Patch by Alain Williams (plus minor tweaks).
1309 Bugzilla 880.
1310
26e72755
PP
1311PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1312 This is now consistent with GnuTLS, and is now documented: the
1313 previous undocumented portable approach to treating the option as
1314 unset was to force an expansion failure. That still works, and
1315 an empty string is now equivalent.
1316
0fbd9bff
PP
1317PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1318 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1319 not performing validation itself.
1320
700d22f3
PP
1321PP/20 Added force_command boolean option to pipe transport.
1322 Patch from Nick Koston, of cPanel Inc.
1323
fcc8e047
JH
1324JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1325 Bugzilla 321, 823.
1326
4c04137d 1327TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1328
8c020188
PP
1329PP/21 Fix eximon continuous updating with timestamped log-files.
1330 Broken in a format-string cleanup in 4.80, missed when I repaired the
1331 other false fix of the same issue.
1332 Report and fix from Heiko Schlichting.
1333 Bugzilla 1363.
1334
d13cdd30
PP
1335PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1336 Report from Prashanth Katuri.
1337
e2fbf4a2
PP
1338PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1339 It's SecureTransport, so affects any MacOS clients which use the
1340 system-integrated TLS libraries, including email clients.
1341
f4c1088b
PP
1342PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1343 using a MIME ACL for non-SMTP local injection.
1344 Report and assistance in diagnosis by Warren Baker.
1345
c5c2182f
PP
1346TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1347
73431ca9
JH
1348JH/16 Fix comparisons for 64b. Bugzilla 1385.
1349
2d07a215
TL
1350TL/09 Add expansion variable $authenticated_fail_id to keep track of
1351 last id that failed so it may be referenced in subsequent ACL's.
1352
a30a8861
TL
1353TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1354 Alexander Miroch.
1355
33382dd9
TL
1356TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1357 ldap library initialization, allowing self-signed CA's to be
1358 used. Also properly sets require_cert option later in code by
1359 using NULL (global ldap config) instead of ldap handle (per
1360 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1361
046172e6
TL
1362TL/12 Enhanced documentation in the ratelimit.pl script provided in
1363 the src/util/ subdirectory.
1364
581d7bee 1365TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1366 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1367 EXPERIMENTAL_TPDA.
1368
1369TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1370 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1371 redis_servers = needs to be configured which will be used by the redis
1372 lookup. Patch from Warren Baker, of The Packet Hub.
1373
237b2cf2
TL
1374TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1375
9fc5a352
TL
1376TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1377 hostname or reverse DNS when processing a host list. Used suggestions
1378 from multiple comments on this bug.
1a7b746d 1379
b10e4ec2
TL
1380TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1381
e2cebd74
TL
1382TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1383 Missed a few lines, added it to make the runtest require no keyboard
1384 interaction.
1385
1386TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1387 contains upper case chars. Make router use caseful_local_part.
1388
2519e60d
TL
1389TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1390 support when GnuTLS has been built with p11-kit.
1391
e78e6ecf 1392
4263f395
PP
1393Exim version 4.80.1
1394-------------------
1395
1396PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1397 CVE-2012-5671
2c422e6f 1398 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1399
ea722490 1400
b1770b6e 1401Exim version 4.80
0599f9cf
PP
1402-----------------
1403
1404PP/01 Handle short writes when writing local log-files.
1405 In practice, only affects FreeBSD (8 onwards).
1406 Bugzilla 1053, with thanks to Dmitry Isaikin.
1407
23c7e742
NM
1408NM/01 Bugzilla 949 - Documentation tweak
1409
b322aac8
NM
1410NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1411 improved.
1412
4a891427
NM
1413NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1414
c1e794ba 1415PP/02 Implemented gsasl authenticator.
b322aac8 1416
97753960
PP
1417PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1418
1419PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1420 `pkg-config foo` for cflags/libs.
1421
df6303fa
PP
1422PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1423 with rest of GSASL and with heimdal_gssapi.
1424
7e6a8985
PP
1425PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1426 `pkg-config foo` for cflags/libs for the TLS implementation.
1427
f1e05cc7 1428PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
1429 properties get this fed in as external SSF. A number of robustness
1430 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 1431
4c287009
PP
1432PP/08 cyrus_sasl server now expands the server_realm option.
1433
b98bb9ac
PP
1434PP/09 Bugzilla 1214 - Log authentication information in reject log.
1435 Patch by Jeremy Harris.
1436
4a6a987a
PP
1437PP/10 Added dbmjz lookup type.
1438
c45dd180 1439PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 1440
7db8d074
PP
1441PP/12 MAIL args handles TAB as well as SP, for better interop with
1442 non-compliant senders.
1443 Analysis and variant patch by Todd Lyons.
1444
eae0036b 1445NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 1446 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
1447 Patch from Dirk Mueller <dmueller@suse.com>
1448
dec5017e
PP
1449PP/13 tls_peerdn now print-escaped for spool files.
1450 Observed some $tls_peerdn in wild which contained \n, which resulted
1451 in spool file corruption.
1452
c80c5570
PP
1453PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1454 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1455 or write after TLS renegotiation, which otherwise led to messages
1456 "Got SSL error 2".
1457
076b11e2
PP
1458TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1459 as a tracking header (ie: a signed header comes before the signature).
1460 Patch from Wolfgang Breyha.
1461
5407bfff
JH
1462JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1463 comma-sep list; embedded commas doubled.
1464
9e45c72b
PP
1465JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1466
e74376d8
PP
1467PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1468 diagnostics.
1469 Report and patch from Dmitry Banschikov.
1470
4c04137d 1471PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
1472 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1473 failures. We appear to now support TLS1.1+ with Exim.
1474
7be682ca
PP
1475PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1476 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
1477 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1478 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 1479
ef840681
PP
1480PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1481 NULL dereference. Report and patch from Alun Jones.
1482
5bfb4cdf
PP
1483PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1484 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1485 Not seeing resolver debug output on NetBSD, but suspect this is a
1486 resolver implementation change.
1487
c6e95d22
PP
1488PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1489 Left warnings. Added "eximon gdb" invocation mode.
1490
9cbad13b
PP
1491PP/21 Defaulting "accept_8bitmime" to true, not false.
1492
9ee44efb
PP
1493PP/22 Added -bw for inetd wait mode support.
1494
6a6084f8
PP
1495PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1496 locate the relevant includes and libraries. Made this the default.
1497
12dd53c7
PP
1498PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1499 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1500
9e45c72b 1501JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
1502 This may cause build issues on older platforms.
1503
17c76198
PP
1504PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1505 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1506 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1507 Added SNI support via GnuTLS too.
af3498d6 1508 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 1509
53947857 1510PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 1511
eae0036b 1512PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
1513 Applied second patch from Janne, implementing suggestion to default
1514 multiple-strings-in-record handling to match SPF spec.
eae0036b 1515
9e45c72b 1516JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 1517
7390e768
PP
1518PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1519 read-only, out of scope).
1520 Patch from Wolfgang Breyha, report from Stuart Northfield.
1521
08488c86
PP
1522PP/29 Fix three issues highlighted by clang analyser static analysis.
1523 Only crash-plausible issue would require the Cambridge-specific
1524 iplookup router and a misconfiguration.
1525 Report from Marcin Mirosław.
1526
6475bd82
PP
1527PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1528
81f91683
PP
1529PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1530 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1531 As part of this, removing so much warning spew let me fix some minor
1532 real issues in debug logging.
1533
5779e6aa
PP
1534PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1535 assignment on my part. Fixed.
1536
3375e053
PP
1537PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1538 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1539 Janne Snabb (who went above and beyond: thank you).
1540
1541PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1542 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
1543 relatively easy to get wrong. Should also expose TLS library linkage
1544 problems.
3375e053 1545
9d26b8c0
PP
1546PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1547 64-bit ${eval} (JH/03).
1548
57eb9e91 1549PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
1550 GNU libc to support some of the 64-bit stuff, should not lead to
1551 conflicts. Defined before os.h is pulled in, so if a given platform
1552 needs to override this, it can.
1553
16880d1a
PP
1554PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1555 protection layer was required, which is not implemented.
1556 Bugzilla 1254, patch from Wolfgang Breyha.
1557
a799883d
PP
1558PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1559 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1560 tls_dhparam take prime identifiers. Also unbreak combination of
1561 OpenSSL+DH_params+TLSSNI.
1562
3ecab157 1563PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 1564
0599f9cf 1565
867fcbf5
PP
1566Exim version 4.77
1567-----------------
1568
1569PP/01 Solaris build fix for Oracle's LDAP libraries.
1570 Bugzilla 1109, patch from Stephen Usher.
1571
f1a29782
TF
1572TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1573
ab42bd23
TK
1574TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1575 whitespace trailer
867fcbf5 1576
0ca0cf52
TF
1577TF/02 Fix a couple more cases where we did not log the error message
1578 when unlink() failed. See also change 4.74-TF/03.
1579
921b12ca
TF
1580TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1581 lock up or crash if it happened to be inside a call to libc when it
1582 got a SIGUSR1 from exiwhat.
1583
1584 The SIGUSR1 handler appends the current process status to the process
1585 log which is later printed by exiwhat. It used to use the general
1586 purpose logging code to do this, but several functions it calls are
1587 not safe for signals.
1588
1589 The new output code in the SIGUSR1 handler is specific to the process
1590 log, and simple enough that it's easy to inspect for signal safety.
1591 Removing some special cases also simplifies the general logging code.
1592 Removing the spurious timestamps from the process log simplifies
1593 exiwhat.
1594
c99ce5c9
TF
1595TF/04 Improved ratelimit ACL condition.
1596
1597 The /noupdate option has been deprecated in favour of /readonly which
1598 has clearer semantics. The /leaky, /strict, and /readonly update modes
1599 are mutually exclusive. The update mode is no longer included in the
1600 database key; it just determines when the database is updated. (This
4c04137d 1601 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
1602
1603 Exim now checks that the per_* options are used with an update mode that
1604 makes sense for the current ACL. For example, when Exim is processing a
1605 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1606 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1607 must specify per_mail/readonly. If you omit the update mode it defaults to
1608 /leaky where that makes sense (as before) or /readonly where required.
1609
1610 The /noupdate option is now undocumented but still supported for
1611 backwards compatibility. It is equivalent to /readonly except that in
1612 ACLs where /readonly is required you may specify /leaky/noupdate or
1613 /strict/noupdate which are treated the same as /readonly.
1614
1615 A useful new feature is the /count= option. This is a generalization
1616 of the per_byte option, so that you can measure the throughput of other
1617 aggregate values. For example, the per_byte option is now equivalent
1618 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1619
1620 The per_rcpt option has been generalized using the /count= mechanism
1621 (though it's more complicated than the per_byte equivalence). When it is
1622 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1623 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1624 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1625 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1626 Note that using per_rcpt with a non-readonly update mode in more than
1627 one ACL will cause the recipients to be double-counted. (The per_mail
1628 and per_byte options don't have this problem.)
1629
1630 The handling of very low rates has changed slightly. If the computed rate
1631 is less than the event's count (usually one) then this event is the first
1632 after a long gap. In this case the rate is set to the same as this event's
1633 count, so that the first message of a spam run is counted properly.
1634
1635 The major new feature is a mechanism for counting the rate of unique
1636 events. The new per_addr option counts the number of different
1637 recipients that someone has sent messages to in the last time period. It
1638 behaves like per_rcpt if all the recipient addresses are different, but
1639 duplicate recipient addresses do not increase the measured rate. Like
1640 the /count= option this is a general mechanism, so the per_addr option
1641 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1642 example, measure the rate that a client uses different sender addresses
1643 with the options per_mail/unique=$sender_address. There are further
1644 details in the main documentation.
1645
3634fc25
TF
1646TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1647
792e8a19
TF
1648TF/06 Removed a few PCRE remnants.
1649
5901f0ab
TF
1650TF/07 Automatically extract Exim's version number from tags in the git
1651 repository when doing development or release builds.
1652
7f2a2a43
PP
1653PP/02 Raise smtp_cmd_buffer_size to 16kB.
1654 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 1655
061b7ebd
PP
1656PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1657 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1658 Bugzilla 97.
1659
e12f8c32
PP
1660PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1661
9e949f00 1662PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
1663 Bugzilla 1078. Patch from John Horne.
1664
1665PP/06 Stop make process more reliably on build failure.
1666 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 1667
555ae6af 1668PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
1669 Bugzilla 1089. Patch from Heiko Schlittermann.
1670
1671PP/08 Handle ${run} returning more data than OS pipe buffer size.
1672 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 1673
6f7fe114
PP
1674PP/09 Handle IPv6 addresses with SPF.
1675 Bugzilla 860. Patch from Wolfgang Breyha.
1676
c566dd90
PP
1677PP/10 GnuTLS: support TLS 1.2 & 1.1.
1678 Bugzilla 1156.
89f897c3
PP
1679 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1680 Bugzilla 1095.
c566dd90 1681
d6cc7c78 1682PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
1683 New compile-time build option, EXPAND_LISTMATCH_RHS.
1684 New expansion conditions, "inlist", "inlisti".
1685
0d0e4455
PP
1686PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1687
3399bb60 1688PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
1689
1690PP/14 fix log_write() format string regression from TF/03.
1691 Bugzilla 1152. Patch from Dmitry Isaikin.
1692
0ca0cf52 1693
10906672
PP
1694Exim version 4.76
1695-----------------
1696
1697PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1698
754a0503
PP
1699PP/02 Harmonised TLS library version reporting; only show if debugging.
1700 Layout now matches that introduced for other libraries in 4.74 PP/03.
1701
c0c7b2da
PP
1702PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1703
e97d1f08
PP
1704PP/04 New "dns_use_edns0" global option.
1705
084c1d8c
PP
1706PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1707 Bugzilla 1098.
1708
4e7ee012
PP
1709PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1710 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 1711
c8d52a00
PP
1712TK/01 Updated PolarSSL code to 0.14.2.
1713 Bugzilla 1097. Patch from Andreas Metzler.
1714
54e7ce4a
PP
1715PP/07 Catch divide-by-zero in ${eval:...}.
1716 Fixes bugzilla 1102.
1717
5ee6f336
PP
1718PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1719 Bugzilla 1104.
1720
c8d52a00 1721TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
1722 format-string attack -- SECURITY: remote arbitrary code execution.
1723
1724TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1725 time unintentionally subject to list matching rules, letting the header
1726 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1727 arbitrary string expansion). This allowed for information disclosure.
1728
1729PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1730 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 1731
10906672 1732
aa097c4c
NM
1733Exim version 4.75
1734-----------------
1735
4c04137d 1736NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
1737 Bugzilla 1073
1738
7f3d9eff
TF
1739TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1740 This fixes portability to compilers other than gcc, notably
1741 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1742
159f52d2
TF
1743TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1744 makefiles for portability to HP-UX and POSIX correctness.
1745
0cc9542a
PP
1746PP/01 Permit LOOKUP_foo enabling on the make command-line.
1747 Also via indented variable definition in the Makefile.
1748 (Debugging by Oliver Heesakkers).
1749
f7274286
PP
1750PP/02 Restore caching of spamd results with expanded spamd_address.
1751 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1752
7b797365
PP
1753PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1754 Improves build reliability. Fix from: Frank Elsner
1755
caacae52
NM
1756NM/02 Fix wide character breakage in the rfc2047 coding
1757 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1758
09dcaba9
NM
1759NM/03 Allow underscore in dnslist lookups
1760 Fixes bug 1026. Patch from Graeme Fowler
1761
bc19a55b
PP
1762PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1763 Code patches from Adam Ciarcinski of NetBSD.
caacae52 1764
bd4c9759
NM
1765NM/04 Fixed exiqgrep to cope with mailq missing size issue
1766 Fixes bug 943.
1767
b72aab72
PP
1768PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1769 is logged, to avoid truncation. Patch from John Horne.
1770
2fe76745
PP
1771PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1772 Patch from Jakob Hirsch.
1773
76aa570c
PP
1774PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1775 SQL string expansion failure details.
1776 Patch from Andrey Oktyabrski.
1777
f1e5fef5
PP
1778PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1779 Patch from Simon Arlott.
1780
4d805ee9
PP
1781PP/09 New lookups functionality failed to compile on old gcc which rejects
1782 extern declarations in function scope.
1783 Patch from Oliver Fleischmann
1784
cd59ab18
PP
1785PP/10 Use sig_atomic_t for flags set from signal handlers.
1786 Check getgroups() return and improve debugging.
1787 Fixed developed for diagnosis in bug 927 (which turned out to be
1788 a kernel bug).
1789
332f5cf3
PP
1790PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1791 Patch from Mark Zealey.
1792
29cfeb94
PP
1793PP/12 Bugzilla 1056: Improved spamd server selection.
1794 Patch from Mark Zealey.
1795
660242ad
PP
1796PP/13 Bugzilla 1086: Deal with maildir quota file races.
1797 Based on patch from Heiko Schlittermann.
1798
bc4bc4c5
PP
1799PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1800 Patch from Uwe Doering, sign-off by Michael Haardt.
1801
2e64baa9
NM
1802NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1803 variable declaration deep within a block. Bug and patch from
1804 Dennis Davis.
1805
4c04137d 1806PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 1807
6bac1a9a
PP
1808PP/16 Make DISABLE_DKIM build knob functional.
1809
552193f0
NM
1810NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1811 Patch by Simon Arlott
baeee2c1 1812
1b587e48
TF
1813TF/03 Fix valgrind.h portability to C89 compilers that do not support
1814 variable argument macros. Our copy now differs from upstream.
1815
aa097c4c 1816
8c07b69f
TF
1817Exim version 4.74
1818-----------------
1819
1820TF/01 Failure to get a lock on a hints database can have serious
1821 consequences so log it to the panic log.
1822
c0ea85ab
TF
1823TF/02 Log LMTP confirmation messages in the same way as SMTP,
1824 controlled using the smtp_confirmation log selector.
1825
0761d44e
TF
1826TF/03 Include the error message when we fail to unlink a spool file.
1827
0a349494
PP
1828DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1829 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1830 for maintaining out-of-tree patches for some time.
1831
1832PP/01 Bugzilla 139: Documentation and portability issues.
1833 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1834 Handle per-OS dynamic-module compilation flags.
1835
fea24b2e
PP
1836PP/02 Let /dev/null have normal permissions.
1837 The 4.73 fixes were a little too stringent and complained about the
1838 permissions on /dev/null. Exempt it from some checks.
1839 Reported by Andreas M. Kirchwitz.
1840
6545de78
PP
1841PP/03 Report version information for many libraries, including
1842 Exim version information for dynamically loaded libraries. Created
1843 version.h, now support a version extension string for distributors
1844 who patch heavily. Dynamic module ABI change.
1845
1670ef10
PP
1846PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1847 privilege escalation vulnerability whereby the Exim run-time user
1848 can cause root to append content of the attacker's choosing to
1849 arbitrary files.
1850
c0886197
PP
1851PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1852 (Wolfgang Breyha)
1853
b7487bce
PP
1854PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1855 If dropping privileges for untrusted macros, we disabled normal logging
1856 on the basis that it would fail; for the Exim run-time user, this is not
1857 the case, and it resulted in successful deliveries going unlogged.
1858 Fixed. Reported by Andreas Metzler.
1859
8c07b69f 1860
97fd1e48 1861Exim version 4.73
ed7f7860 1862-----------------
97fd1e48
PP
1863
1864PP/01 Date: & Message-Id: revert to normally being appended to a message,
1865 only prepend for the Resent-* case. Fixes regression introduced in
1866 Exim 4.70 by NM/22 for Bugzilla 607.
1867
6901c596
PP
1868PP/02 Include check_rfc2047_length in configure.default because we're seeing
1869 increasing numbers of administrators be bitten by this.
1870
a8c8d6b5
JJ
1871JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1872
77bb000f
PP
1873PP/03 Bugzilla 994: added openssl_options main configuration option.
1874
a29e5231
PP
1875PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1876
ec5a0394 1877PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 1878
55c75993
PP
1879PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1880
453a6645 1881PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
1882 without a peer certificate, leading to a segfault because of an
1883 assumption that peers always have certificates. Be a little more
453a6645
PP
1884 paranoid. Problem reported by Martin Tscholak.
1885
8544e77a
PP
1886PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1887 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1888 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
1889 CL also introduces -bmalware, various -d+acl logging additions and
1890 more caution in buffer sizes.
8544e77a 1891
83e029d5
PP
1892PP/09 Implemented reverse_ip expansion operator.
1893
ed7f7860
PP
1894PP/10 Bugzilla 937: provide a "debug" ACL control.
1895
7d9f747b
PP
1896PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1897
4b2241d2
PP
1898PP/12 Bugzilla 973: Implement --version.
1899
10385c15
PP
1900PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1901
dbc4b90d
PP
1902PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1903
532be449
PP
1904PP/15 Bugzilla 816: support multiple condition rules on Routers.
1905
6a8de854 1906PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
1907 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
1908 ignore trailing whitespace.
6a8de854 1909
5dc43717
JJ
1910JJ/02 prevent non-panic DKIM error from being sent to paniclog
1911
1912JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
1913 "exim" to be used
55c75993 1914
3346ab01
PP
1915PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
1916 Notification from Dr Andrew Aitchison.
1917
491fab4c
PP
1918PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
1919 ExtendedDetectionInfo response format.
1920 Notification from John Horne.
1921
13eb9497
PP
1922PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
1923 compatible.
1924
1925PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
1926 XSL and documented dependency on system catalogs, with examples of how
1927 it normally works.
1928
7f36d675
DW
1929DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
1930 access.
1931
c1d94452
DW
1932DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
1933 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
1934 configuration file which is writeable by the Exim user or group.
1935
e2f5dc15
DW
1936DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
1937 of configuration files to cover files specified with the -C option if
1938 they are going to be used with root privileges, not just the default
1939 configuration file.
1940
cd25e41d
DW
1941DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
1942 option (effectively making it always true).
1943
261dc43e
DW
1944DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
1945 files to be used while preserving root privileges.
1946
fa32850b
DW
1947DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
1948 that rogue child processes cannot use them.
1949
79d4bc3d
PP
1950PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
1951 run-time user, instead of root.
1952
43236f35 1953PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
1954 Exim run-time user without dropping privileges.
1955
fb08281f
DW
1956DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
1957 result string, instead of calling string_vformat() twice with the same
1958 arguments.
3346ab01 1959
74935b98
DW
1960DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
1961 for other users. Others should always drop root privileges if they use
1962 -C on the command line, even for a whitelisted configure file.
1963
90b6341f
DW
1964DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
1965
57730b52
ML
1966NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
1967
66581d1e 1968
465e92cf
JJ
1969Exim version 4.72
1970-----------------
1971
453a6645
PP
1972JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
1973 $data_path, and $header_path variables; fixed documentation bugs and
1974 typos
465e92cf 1975
453a6645
PP
1976JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
1977 exipick to access non-standard spools, including the "frozen" queue
1978 (Finput)
edae0343 1979
9bd3e22c
NM
1980NM/01 Bugzilla 965: Support mysql stored procedures.
1981 Patch from Alain Williams
1982
bb576ff7
NM
1983NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
1984
5a1a5845
NM
1985NM/03 Bugzilla 955: Documentation fix for max_rcpts.
1986 Patch from Andreas Metzler
1987
981a9fad
NM
1988NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
1989 Patch from Kirill Miazine
1990
7fc497ee
NM
1991NM/05 Bugzilla 671: Added umask to procmail example.
1992
1a41defa
JJ
1993JJ/03 installed exipick 20100323.0, fixing doc bug
1994
a466095c 1995NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 1996 directory. Notification and patch from Dan Rosenberg.
a466095c 1997
94a6bd0b
NM
1998TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
1999
2000TK/02 Improve log output when DKIM signing operation fails.
2001
2002MH/01 Treat the transport option dkim_domain as a colon separated
2003 list, not as a single string, and sign the message with each element,
2004 omitting multiple occurences of the same signer.
2005
c1b141a8
NM
2006NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2007 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2008
b26eacf1 2009NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2010 Patch by Simon Arlott
2011
179c5980 2012PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2013 MBX locking. Notification from Dan Rosenberg.
179c5980 2014
9bd3e22c 2015
7c6d71af
NM
2016Exim version 4.71
2017-----------------
2018
7d9f747b 2019TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2020
f013fb92
NM
2021NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2022
0eb8eedd
NM
2023NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2024
663ee6d9
NM
2025NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2026
177ebd9b
NM
2027NM/04 Bugzilla 915: Flag broken perl installation during build.
2028
7c6d71af 2029
210f147e
NM
2030Exim version 4.70
2031-----------------
2032
cdd3bb85 2033TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2034 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2035
2036TK/02 Write list of recipients to X-Envelope-Sender header when building
2037 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2038 Hirsch).
cdd3bb85
TK
2039
2040TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2041 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2042 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2043
2044TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2045 by Mark Daniel Reidel <mr@df.eu>.
2046
210f147e
NM
2047NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2048 When building exim an external PCRE library is now needed -
2049 PCRE is a system library on the majority of modern systems.
2050 See entry on PCRE_LIBS in EDITME file.
2051
deafd5b3
NM
2052NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2053 conversation. Added nologin parameter to request.
7d9f747b 2054 Patch contributed by Kirill Miazine.
deafd5b3 2055
089793a4
TF
2056TF/01 Do not log submission mode rewrites if they do not change the address.
2057
5f16ca82
TF
2058TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2059
dae9d94e 2060NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2061 log files in place. Contributed by Roberto Lima.
dae9d94e 2062
7d9f747b 2063NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2064
06864c44
TF
2065TF/03 Bugzilla 615: When checking the local_parts router precondition
2066 after a local_part_suffix or local_part_prefix option, Exim now
2067 does not use the address's named list lookup cache, since this
2068 contains cached lookups for the whole local part.
2069
65a7d8c3 2070NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2071 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2072
23510047 2073TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2074
7d9f747b 2075NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2076
7d8eec3a 2077NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2078 Patch provided by Jan Srzednicki.
6c588e74 2079
89dec7b6
TF
2080TF/05 Leading white space used to be stripped from $spam_report which
2081 wrecked the formatting. Now it is preserved.
5f28a6e8 2082
a99de90c
TF
2083TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2084 that they are available at delivery time.
2085
e2803e40
TF
2086TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2087
7199e1ee
TF
2088TF/08 TLS error reporting now respects the incoming_interface and
2089 incoming_port log selectors.
2090
e276e04b
TF
2091TF/09 Produce a more useful error message if an SMTP transport's hosts
2092 setting expands to an empty string.
2093
ce552449 2094NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2095 Patch provided by Phil Pennock.
ce552449 2096
e765a0f1 2097NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2098 Patch provided by Richard Godbee.
e765a0f1 2099
4f054c63 2100NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2101 acl_smtp_notquit, added index entry.
4f054c63 2102
7d9f747b
PP
2103NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2104 Patch provided by Eugene Bujak.
24c929a2 2105
7d9f747b
PP
2106NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2107 accept(). Patch provided by Maxim Dounin.
cf73943b 2108
b52bc06e 2109NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2110 Patch provided by Phil Pennock.
b52bc06e 2111
447de4b0
NM
2112NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2113
4c69d561 2114NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2115 Patch provided by Brad "anomie" Jorsch.
4c69d561 2116
d5c39246 2117NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2118 Patch provided by Dean Brooks.
9b989985 2119
0b23848a
TK
2120TK/05 Add native DKIM support (does not depend on external libraries).
2121
8f3414a1 2122NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2123 Patch provided by Graeme Fowler.
e2aacdfd 2124
fb6f955d
NM
2125NM/16 Bugzilla 851: Documentation example syntax fix.
2126
2127NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2128
7d9f747b
PP
2129NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2130 lsearch.
dbb0bf41 2131
7d9f747b
PP
2132NM/19 Bugzilla 745: TLS version reporting.
2133 Patch provided by Phil Pennock.
f3766eb5 2134
7d9f747b
PP
2135NM/20 Bugzilla 167: bool: condition support.
2136 Patch provided by Phil Pennock.
36f12725 2137
7d9f747b
PP
2138NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2139 clients. Patch provided by Phil Pennock.
e6060e2c 2140
7d9f747b
PP
2141NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2142 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2143
7d9f747b
PP
2144NM/23 Bugzilla 687: Fix misparses in eximstats.
2145 Patch provided by Heiko Schlittermann.
d5c13d66 2146
7d9f747b
PP
2147NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2148 Patch provided by Heiko Schlittermann.
b2335c0b 2149
7d9f747b 2150NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2151 plus update to original patch.
f4cd9433 2152
7d9f747b 2153NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2154
7d9f747b
PP
2155NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2156 Patch provided by David Brownlee.
8dc71ab3 2157
7d9f747b 2158NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2159
7d9f747b 2160NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2161
7d9f747b 2162NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2163
7d9f747b 2164NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2165
17792b53 2166NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2167 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2168
7d9f747b
PP
2169NM/33 Bugzilla 898: Transport filter timeout fix.
2170 Patch by Todd Rinaldo.
52383f8f 2171
91576cec 2172NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2173 Patch by Serge Demonchaux.
5ca6d115 2174
7d9f747b
PP
2175NM/35 Bugzilla 39: Base64 decode bug fixes.
2176 Patch by Jakob Hirsch.
baee9eee 2177
7d9f747b 2178NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2179
7d9f747b 2180NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2181
7d9f747b 2182NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2183
7d9f747b 2184NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2185
deafd5b3 2186
47db1125
NM
2187Exim version 4.69
2188-----------------
2189
4b3504d0
TK
2190TK/01 Add preliminary DKIM support. Currently requires a forked version of
2191 ALT-N's libdkim that I have put here:
2192 http://duncanthrax.net/exim-experimental/
2193
2194 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2195 were called 'true' and it seems that C99 defines that as a reserved
2196 keyword to be used with 'bool' variable types. That means you could
2197 not include C99-style headers which use bools without triggering
2198 build errors in sieve.c.
2199
81ea09ca
NM
2200NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2201 as mailq or other aliases. Changed the --help handling significantly
2202 to do whats expected. exim_usage() emits usage/help information.
2203
f13cddcb
SC
2204SC/01 Added the -bylocaldomain option to eximstats.
2205
7d9f747b 2206NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2207
7d9f747b 2208NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2209
7d9f747b 2210NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2211
2212
eb4c0de6
PH
2213Exim version 4.68
2214-----------------
2215
2216PH/01 Another patch from the Sieve maintainer.
2217
6a3bceb1
PH
2218PH/02 When an IPv6 address is converted to a string for single-key lookup
2219 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2220 dots are used instead of colons so that keys in lsearch files need not
2221 contain colons. This was done some time before quoting was made available
2222 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2223 (notated using the quote facility) so as to distinguish them from IPv4
2224 keys. This meant that lookups for IP addresses in host lists did not work
2225 for iplsearch lookups.
2226
2227 This has been fixed by arranging for IPv6 addresses to be expressed with
2228 colons if the lookup type is iplsearch. This is not incompatible, because
2229 previously such lookups could never work.
2230
4c04137d 2231 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2232 ordinary lsearch keys. However, making the change in all cases is
2233 incompatible and would probably break a number of configurations.
2234
2e30fa9d
TK
2235TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2236 version.
2237
0806a9c5
MH
2238MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2239 conversion specification without a maximum field width, thereby enabling
2240 a rogue spamd server to cause a buffer overflow. While nobody in their
2241 right mind would setup Exim to query an untrusted spamd server, an
2242 attacker that gains access to a server running spamd could potentially
2243 exploit this vulnerability to run arbitrary code as the Exim user.
2244
ae276964
TK
2245TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2246 $primary_hostname instead of what libspf2 thinks the hosts name is.
2247
0f2cbd1b
MH
2248MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2249 a directory entry by the name of the lookup key. Previously, if a
2250 symlink pointed to a non-existing file or a file in a directory that
2251 Exim lacked permissions to read, a lookup for a key matching that
2252 symlink would fail. Now it is enough that a matching directory entry
2253 exists, symlink or not. (Bugzilla 503.)
2254
2b85bce7
PH
2255PH/03 The body_linecount and body_zerocount variables are now exported in the
2256 local_scan API.
2257
93655c46
PH
2258PH/04 Added the $dnslist_matched variable.
2259
6c512171
PH
2260PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2261 This means they are set thereafter only if the connection becomes
2262 encrypted.
2263
2264PH/06 Added the client_condition to authenticators so that some can be skipped
2265 by clients under certain conditions.
2266
aa6dc513
PH
2267PH/07 The error message for a badly-placed control=no_multiline_responses left
2268 "_responses" off the end of the name.
2269
a96603a0
PH
2270PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2271
8f240103
PH
2272PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2273 (without spaces) instead of just copying the configuration text.
2274
2275PH/10 Added the /noupdate option to the ratelimit ACL condition.
2276
d677b2f2
PH
2277PH/11 Added $max_received_linelength.
2278
d52120f2
PH
2279PH/12 Added +ignore_defer and +include_defer to host lists.
2280
64f2600a
PH
2281PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2282 way in which PCRE > 7.0 is built.
2283
8669f003
PH
2284PH/14 Implemented queue_only_load_latch.
2285
a4dc33a8
PH
2286PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2287 MAIL command. The effect was to mangle the value on 64-bit systems.
2288
d6a60c0f
PH
2289PH/16 Another patch from the Sieve maintainer.
2290
8f128379
PH
2291PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2292
8932dffe
PH
2293PH/18 If a system quota error occurred while trying to create the file for
2294 a maildir delivery, the message "Mailbox is full" was not appended to the
2295 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2296 only to a quota excession during the actual writing of the file.
d6a60c0f 2297
ddea74fa 2298PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2299 characters?) which causes problems in log lines. The DN values are now
2300 passed through string_printing() before being added to log lines.
2301
ddea74fa 2302PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2303 and InterBase are left for another time.)
2304
ddea74fa
PH
2305PH/21 Added message_body_newlines option.
2306
ce9f225c
PH
2307PH/22 Guard against possible overflow in moan_check_errorcopy().
2308
19897d52
PH
2309PH/23 POSIX allows open() to be a macro; guard against that.
2310
bc64a74d
PH
2311PH/24 If the recipient of an error message contained an @ in the local part
2312 (suitably quoted, of course), incorrect values were put in $domain and
2313 $local_part during the evaluation of errors_copy.
2314
eb4c0de6 2315
b4ed4da0
PH
2316Exim version 4.67
2317-----------------
2318
22ad45c9
MH
2319MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2320 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2321 Jan Srzednicki.
2322
b4ed4da0
PH
2323PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2324 issue a MAIL command.
2325
431b7361
PH
2326PH/02 In an ACL statement such as
2327
2328 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2329
2330 if a client was not listed at all, or was listed with a value other than
2331 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2332 the condition was not true (as it should be), so access was not denied.
2333 The bug was that the ! inversion was incorrectly passed on to the second
2334 item. This has been fixed.
2335
2336PH/03 Added additional dnslists conditions == and =& which are different from
2337 = and & when the dns lookup returns more than one IP address.
2338
83da1223
PH
2339PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2340 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2341
54fc8428
PH
2342PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2343 FSYNC, which compiles an option called disable_fsync that allows for
2344 bypassing fsync(). The documentation is heavily laced with warnings.
2345
34c5e8dd
SC
2346SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2347
bbe15da8
PH
2348PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2349 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2350 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2351 including adding "make clean"; (3) Added -fPIC when compiling the test
2352 dynamically loaded module, to get rid of a warning.
2353
0e8a9471
MH
2354MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2355 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2356 = 0s. The bug is otherwise harmless.
2357
f0872424
PH
2358PH/07 There was a bug in the dovecot authenticator such that the value of
2359 $auth1 could be overwritten, and so not correctly preserved, after a
2360 successful authentication. This usually meant that the value preserved by
2361 the server_setid option was incorrect.
2362
b01dd148
PH
2363PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2364
6bf342e1
PH
2365PH/09 Installed PCRE release 7.0.
2366
273f34d0
PH
2367PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2368 run for batched SMTP input. It is now run at the start of every message
2369 in the batch. While fixing this I discovered that the process information
2370 (output by running exiwhat) was not always getting set for -bs and -bS
2371 input. This is fixed, and it now also says "batched" for BSMTP.
2372
cf8b11a5
PH
2373PH/11 Added control=no_pipelining.
2374
41c7c167
PH
2375PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2376 patch, slightly modified), and move the expansion of helo_data till after
2377 the connection is made in the smtp transport (so it can use these
2378 values).
2379
9c57cbc0
PH
2380PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2381
f3f065bb
PH
2382PH/14 Added log_selector = +pid.
2383
047bdd8c
PH
2384PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2385
0ce9abe6
PH
2386PH/16 Add ${if forany and ${if forall.
2387
0e22dfd1
PH
2388PH/17 Added dsn_from option to vary the From: line in DSNs.
2389
4c590bd1
PH
2390PH/18 Flush SMTP output before performing a callout, unless control =
2391 no_callout_flush is set.
2392
09945f1e
PH
2393PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2394 was true (the default) a successful delivery failed to delete the retry
2395 item, thus causing premature timeout of the address. The bug is now
2396 fixed.
2397
c51b8e75
PH
2398PH/20 Added hosts_avoid_pipelining to the smtp transport.
2399
e28326d8 2400PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2401 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2402 other ACL rejections are.
2403
75b1493f
PH
2404PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2405 with slight modification.
2406
7c5214ec
PH
2407PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2408 draft, changing the syntax and factoring some duplicate code".
2409
4311097e
PH
2410PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2411 for deliveries of the second and subsequent messages over the same SMTP
2412 connection.
2413
29f89cad
PH
2414PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2415 ${reduce, with only minor "tidies".
2416
5e687460
SC
2417SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2418
c3611384
PH
2419PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2420 expansion side effects.
2421
5a11a7b4
PH
2422PH/27 When a message times out after an over-quota error from an Exim-imposed
2423 quota, the bounce message says "mailbox is full". This message was not
2424 being given when it was a system quota that was exceeded. It now should
2425 be the same.
2426
0e20aff9
MH
2427MH/03 Made $recipients available in local_scan(). local_scan() already has
2428 better access to the recipient list through recipients_list[], but
2429 $recipients can be useful in postmaster-provided expansion strings.
2430
ca86f471
PH
2431PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2432 in the case of a MAIL command with additional options following the
2433 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2434 were accidentally chopped off.
2435
a14e5636
PH
2436PH/29 SMTP synchronization checks are implemented when a command is read -
2437 there is a check that no more input is waiting when there shouldn't be
2438 any. However, for some commands, a delay in an ACL can mean that it is
2439 some time before the response is written. In this time, more input might
2440 arrive, invalidly. So now there are extra checks after an ACL has run for
2441 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2442 pipelining has not been advertised.
2443
ec95d1a6
PH
2444PH/30 MH's patch to allow iscntrl() characters to be list separators.
2445
42855d71
PH
2446PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2447 returned in the SMTP response when smtp_return_error_details was false.
2448 This has been fixed.
2449
57c2c631
PH
2450PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2451 instead of the C I/O that was originally supplied, because problems were
2452 reported on Solaris.
2453
58c01c94
PH
2454PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2455 Exim which did not show up earlier: it was assuming that a call to
2456 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2457 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2458 was a macro that became an assignment, so it seemed to work. This has
2459 changed to a proper function call with a void return, hence the compile
2460 error. Exim's code has been fixed.
2461
dee5a20a
PH
2462PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2463 cpus.
2464
d2ee6114
PH
2465PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2466
b2d5182b
PH
2467PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2468
79749a79
PH
2469PH/37 If a message is not accepted after it has had an id assigned (e.g.
2470 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
2471 "Completed" line in the log. When some messages of this type were
2472 selected by exigrep, they were listed as "not completed". Others were
2473 picked up by some special patterns. I have improved the selection
2474 criteria to be more general.
79749a79 2475
c456d9bb
PH
2476PH/38 The host_find_failed option in the manualroute router can now be set
2477 to "ignore", to completely ignore a host whose IP address cannot be
2478 found. If all hosts are ignored, the behaviour is controlled by the new
2479 host_all_ignored option.
2480
cd9868ec
PH
2481PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2482 homing or because of multiple MX records with /mx) generated more than
2483 one IP address, and the following item turned out to be the local host,
2484 all the secondary addresses of the first item were incorrectly removed
2485 from the list, along with the local host and any following hosts (which
2486 is what is supposed to happen).
2487
ebeaf996
PH
2488PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2489 whoever called Exim into the -H file. In the case of the daemon it was
2490 behaving confusingly. When first started, it used values for whoever
2491 started the daemon, but after a SIGHUP it used the Exim user (because it
2492 calls itself on a restart). I have changed the code so that it now always
2493 uses the Exim user.
2494
2679d413
PH
2495PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2496 message are rejected with the same error (e.g. no authentication or bad
2497 sender address), and a DATA command is nevertheless sent (as can happen
2498 with PIPELINING or a stupid MUA), the error message that was given to the
2499 RCPT commands is included in the rejection of the DATA command. This is
2500 intended to be helpful for MUAs that show only the final error to their
2501 users.
2502
84024b72
PH
2503PH/42 Another patch from the Sieve maintainer.
2504
8005d38e
SC
2505SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2506 Eximstats - Fixed some broken HTML links and added missing column headers
2507 (Jez Hancock).
2508 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2509 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2510
3298c6c6
SC
2511SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2512
a43a27c5
PH
2513PH/43 Yet another patch from the Sieve maintainer.
2514
58eb016e 2515PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
2516 the response to the final '.' that terminates a message, but only in the
2517 case where the client has not sent further data following the '.'
2518 (unfortunately, this is allowed). However, in many cases there won't be
2519 any further data because there won't be any more messages to send. A call
2520 to select() can be used: if it shows that the input is "ready", there is
2521 either input waiting, or the socket has been closed. An attempt to read
2522 the next input character can distinguish the two cases. Previously, Exim
58eb016e 2523 would have sent an OK response which the client would never have see.
563b63fa
PH
2524 This could lead to message repetition. This fix should cure that, at
2525 least in a lot of common cases.
58eb016e 2526
b43a74ea
PH
2527PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2528 advertised in response to EHLO.
2529
b4ed4da0 2530
5dd1517f
PH
2531Exim version 4.66
2532-----------------
2533
2534PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2535 fixed by 4.65/MH/01 (is this a record?) are fixed:
2536
2537 (i) An empty string was always treated as zero by the numeric comparison
2538 operators. This behaviour has been restored.
2539
2540 (ii) It is documented that the numeric comparison operators always treat
2541 their arguments as decimal numbers. This was broken in that numbers
2542 starting with 0 were being interpreted as octal.
2543
2544 While fixing these problems I realized that there was another issue that
2545 hadn't been noticed. Values of message_size_limit (both the global option
2546 and the transport option) were treated as octal if they started with 0.
2547 The documentation was vague. These values are now always treated as
2548 decimal, and I will make that clear in the documentation.
2549
2550
93cfa765
TK
2551Exim version 4.65
2552-----------------
2553
2554TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2555 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2556 versions. (#438)
2557
d6066548
MH
2558MH/01 Don't check that the operands of numeric comparison operators are
2559 integers when their expansion is in "skipping" mode (fixes bug
2560 introduced by 4.64-PH/07).
2561
4362ff0d
PH
2562PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2563 child addresses, Exim now panics and dies. Previously, because the count
2564 is held in a short int, deliveries were likely to be lost. As such a
2565 large number of recipients for a single message is ridiculous
2566 (performance will be very, very poor), I have chosen to impose a limit
2567 rather than extend the field.
2568
93cfa765 2569
944e9e9c
TF
2570Exim version 4.64
2571-----------------
aa41d2de 2572
21d74bd9
TK
2573TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2574 leftover -K file (the existence of which was triggered by #402).
2575 While we were at it, introduced process PID as part of the -K
2576 filename. This should rule out race conditions when creating
2577 these files.
2578
2579TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2580 processing considerably. Previous code took too long for large mails,
2581 triggering a timeout which in turn triggers #401.
2582
2583TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2584 in the DK code in transports.c. sendfile() is not really portable,
2585 hence the _LINUX specificness.
944e9e9c
TF
2586
2587TF/01 In the add_headers option to the mail command in an Exim filter,
2588 there was a bug that Exim would claim a syntax error in any
2589 header after the first one which had an odd number of characters
2590 in the field name.
2591
2b1c6e3a
PH
2592PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2593 callout verification, Exim cached a "reject" for the entire domain. This
2594 is correct for most verifications, but it is not correct for a recipient
2595 verification with use_sender or use_postmaster set, because in that case
2596 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2597 case of MAIL FROM:<> rejection from other early rejections (e.g.
2598 rejection of HELO). When verifying a recipient using a non-null MAIL
2599 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2600 Whatever the result of the callout, the value of the domain cache is
2601 left unchanged (for any other kind of callout, getting as far as trying
2602 RCPT means that the domain itself is ok).
2603
1f872c80
PH
2604PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2605 gcc 4.1.1 threw up.
2606
2607PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2608 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2609 session, the daemon ignores ECONNECT errors and logs others; it now
2610 ignores EPIPE as well.
2611
d203e649
PH
2612PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2613 (quoted-printable decoding).
2614
cc2ed8f7 2615PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 2616 later the small subsequent patch to fix an introduced bug.
f951fd57 2617
ddfcd446
PH
2618PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2619
d45b1de8
PH
2620PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2621
2622PH/08 An error is now given if message_size_limit is specified negative.
2623
38a0a95f 2624PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 2625 to be given (somewhat) arbitrary names.
38a0a95f 2626
a2405d83
JJ
2627JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2628 in 4.64-PH/09.
2629
2630JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2631 miscellaneous code fixes
2632
6ea85e9a
PH
2633PH/10 Added the log_reject_target ACL modifier to specify where to log
2634 rejections.
2635
26da7e20
PH
2636PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2637 hostname. This is wrong, because it relates to the incoming message (and
2638 probably the interface on which it is arriving) and not to the outgoing
2639 callout (which could be using a different interface). This has been
2640 changed to use the value of the helo_data option from the smtp transport
2641 instead - this is what is used when a message is actually being sent. If
2642 there is no remote transport (possible with a router that sets up host
2643 addresses), $smtp_active_hostname is used.
6ea85e9a 2644
14aa5a05 2645PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 2646 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
2647 (a) The code assumed that strncpy() returns a negative number on buffer
2648 overflow, which isn't the case. Replaced with Exim's string_format()
2649 function.
2650 (b) There were several signed/unsigned issues. I just did the minimum
2651 hacking in of casts. There is scope for a larger refactoring.
2652 (c) The code used strcasecmp() which is not a standard C function.
2653 Replaced with Exim's strcmpic() function.
2654 (d) The code set only $1; it now sets $auth1 as well.
2655 (e) A simple test gave the error "authentication client didn't specify
2656 service in request". It would seem that Dovecot has changed its
2657 interface. Fortunately there's a specification; I followed it and
2658 changed what the client sends and it appears to be working now.
2659
ff75a1f7
PH
2660PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2661 decoding.
2662
e6f6568e
PH
2663PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2664 address A is aliased to B and C, where B exists and C does not. Without
2665 -v the output is "A verified" because verification stops after a
2666 successful redirection if more than one address is generated. However,
2667 with -v the child addresses are also verified. Exim was outputting "A
2668 failed to verify" and then showing the successful verification for C,
2669 with its parentage. It now outputs "B failed to verify", showing B's
2670 parentage before showing the successful verification of C.
2671
d6f6e0dc
PH
2672PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2673 look up a TXT record in a specific list after matching in a combined
2674 list.
2675
322050c2
PH
2676PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2677 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2678 they consult the DNS. I had assumed they would set it the way they
2679 wanted; and indeed my experiments on Linux seem to show that in some
2680 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2681 To be on the safe side, however, I have now made the interface to
2682 host_find_byname() similar to host_find_bydns(), with an argument
2683 containing the DNS resolver options. The host_find_byname() function now
2684 sets these options at its start, just as host_find_bydns() does. The smtp
2685 transport options dns_qualify_single and dns_search_parents are passed to
2686 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2687 of host_find_byname() use the default settings of RES_DEFNAMES
2688 (qualify_single) but not RES_DNSRCH (search_parents).
2689
08955dd3
PH
2690PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2691 spool_read_header() do less string testing, by means of a preliminary
2692 switch on the second character of optional "-foo" lines. (This is
2693 overdue, caused by the large number of possibilities that now exist.
2694 Originally there were few.) While I was there, I also converted the
2695 str(n)cmp tests so they don't re-test the leading "-" and the first
2696 character, in the hope this might squeeze out yet more improvement.
2697
1eccaa59
PH
2698PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2699 flag allowing group syntax was set by the header_syntax check but not
2700 turned off, possible causing trouble later; (2) The flag was not being
2701 set at all for the header_verify test, causing "group"-style headers to
2702 be rejected. I have now set it in this case, and also caused header_
2703 verify to ignore an empty address taken from a group. While doing this, I
2704 came across some other cases where the code for allowing group syntax
2705 while scanning a header line wasn't quite right (mostly, not resetting
2706 the flag correctly in the right place). These bugs could have caused
2707 trouble for malformed header lines. I hope it is now all correct.
2708
602e59e5
PH
2709PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2710 with the "reply" argument non-NULL. The code, however (which originally
2711 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2712 but it didn't always do it. This confused somebody who was copying the
2713 code for some other use. I have removed all the tests.
2714
411ef850
PH
2715PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2716 feature that was used to support insecure browsers during the U.S. crypto
2717 embargo. It requires special client support, and Exim is probably the
2718 only MTA that supported it -- and would never use it because real RSA is
2719 always available. This code has been removed, because it had the bad
2720 effect of slowing Exim down by computing (never used) parameters for the
2721 RSA_EXPORT functionality.
2722
7befa435
PH
2723PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2724 authenticator to fail if there's a tab character in the incoming data
2725 (there should never be unless someone is messing about, as it's supposed
2726 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2727 if the connection is using TLS or if the remote IP is the same as the
2728 local IP, and the "valid-client-cert option" if a client certificate has
2729 been verified.
2730
48da4259 2731PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
2732 authenticators. This can be used for authorization after authentication
2733 succeeds. (In the case of plaintext, it servers for both authentication
2734 and authorization.)
2735
48da4259
PH
2736PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2737 if any retry times were supplied.
2738
d1d5595c
PH
2739PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2740 connection, where there is no client IP address to check. In this
2741 situation, the verify now always succeeds.
2742
0ef732d9
PH
2743PH/25 Applied John Jetmore's -Mset patch.
2744
328895cc
PH
2745PH/26 Added -bem to be like -Mset, but loading a message from a file.
2746
fd700877
PH
2747PH/27 In a string expansion for a processed (not raw) header when multiple
2748 headers of the same name were present, leading whitespace was being
2749 removed from all of them, but trailing whitespace was being removed only
2750 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
2751 before concatenation. Completely empty headers in a concatenation (as
2752 before) are ignored.
fd700877 2753
8dce1a6f
PH
2754PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2755 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2756
17af4a17
PH
2757PH/29 [Removed. This was a change that I later backed out, and forgot to
2758 correct the ChangeLog entry (that I had efficiently created) before
2759 committing the later change.]
f6c332bd
PH
2760
2761PH/30 Exim was sometimes attempting to deliver messages that had suffered
2762 address errors (4xx response to RCPT) over the same connection as other
2763 messages routed to the same hosts. Such deliveries are always "forced",
2764 so retry times are not inspected. This resulted in far too many retries
2765 for the affected addresses. The effect occurred only when there were more
2766 hosts than the hosts_max_try setting in the smtp transport when it had
2767 the 4xx errors. Those hosts that it had tried were not added to the list
2768 of hosts for which the message was waiting, so if all were tried, there
2769 was no problem. Two fixes have been applied:
2770
2771 (i) If there are any address or message errors in an SMTP delivery, none
2772 of the hosts (tried or untried) are now added to the list of hosts
2773 for which the message is waiting, so the message should not be a
2774 candidate for sending over the same connection that was used for a
2775 successful delivery of some other message. This seems entirely
2776 reasonable: after all the message is NOT "waiting for some host".
2777 This is so "obvious" that I'm not sure why it wasn't done
2778 previously. Hope I haven't missed anything, but it can't do any
2779 harm, as the worst effect is to miss an optimization.
2780
2781 (ii) If, despite (i), such a delivery is accidentally attempted, the
2782 routing retry time is respected, so at least it doesn't keep
2783 hammering the server.
2784
c1114884
PH
2785PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2786 in ${readsocket because some servers need this prod.
2787
7a0743eb
PH
2788PH/32 Added some extra debug output when updating a wait-xxx database.
2789
0d85fa3f
PH
2790PH/33 The hint "could be header name not terminated by colon", which has been
2791 given for certain expansion errors for a long time, was not being given
2792 for the ${if def:h_colon_omitted{... case.
2793
1bf43b78
PH
2794PH/34 The spec says: "With one important exception, whenever a domain list is
2795 being scanned, $domain contains the subject domain." There was at least
2796 one case where this was not true.
2797
520de300
PH
2798PH/35 The error "getsockname() failed: connection reset by peer" was being
2799 written to the panic log as well as the main log, but it isn't really
2800 panic-worthy as it just means the connection died rather early on. I have
2801 removed the panic log writing for the ECONNRESET error when getsockname()
2802 fails.
2803
48c7f9e2
PH
2804PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2805 runs only) independently of the message's sender address. This meant
2806 that, if the 4xx error was in fact related to the sender, a different
2807 message to the same recipient with a different sender could confuse
4c04137d 2808 things. In particular, this can happen when sending to a greylisting
48c7f9e2
PH
2809 server, but other circumstances could also provoke similar problems.
2810 I have changed the default so that the retry time for these errors is now
2811 based a combination of the sender and recipient addresses. This change
2812 can be overridden by setting address_retry_include_sender=false in the
2813 smtp transport.
2814
99ea1c86
PH
2815PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2816 remote server are returned as part of bounce messages. This was not
2817 happening for LMTP over a pipe (the lmtp transport), but now it is the
2818 same for both kinds of LMTP.
2819
a2042e78
PH
2820PH/38 Despite being documented as not happening, Exim was rewriting addresses
2821 in header lines that were in fact CNAMEs. This is no longer the case.
2822
4fbcfc2e
PH
2823PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2824 and queue runs started by the daemon processed all messages. This has
2825 been fixed so that -R and -S can now usefully be given with -q<time>.
2826
aa41d2de
PH
2827PH/40 Import PCRE release 6.7 (fixes some bugs).
2828
af561417
PH
2829PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2830
3cc66b45
PH
2831PH/42 Give an error if -q is specified more than once.
2832
194cc0e4
PH
2833PH/43 Renamed the variables $interface_address and $interface_port as
2834 $received_ip_address and $received_port, to make it clear that these
2835 values apply to message reception, and not to the outgoing interface when
2836 a message is delivered. (The old names remain recognized, of course.)
2837
a401ddaa
PH
2838PH/44 There was no timeout on the connect() call when using a Unix domain
2839 socket in the ${readsocket expansion. There now is.
2840
4e88a19f
PH
2841PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2842 be meaningful with "accept".
2843
d7d7b289
SC
2844SC/01 Eximstats V1.43
2845 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2846
2847SC/02 Eximstats V1.44
2848 Use a glob alias rather than an array ref in the generated
2849 parser. This improves both readability and performance.
2850
2851SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2852 Collect SpamAssassin and rejection statistics.
2853 Don't display local sender or destination tables unless
2854 there is data to show.
2855 Added average volumes into the top table text output.
2856
2857SC/04 Eximstats V1.46
2858 Collect data on the number of addresses (recipients)
2859 as well as the number of messages.
2860
2861SC/05 Eximstats V1.47
2862 Added 'Message too big' to the list of mail rejection
2863 reasons (thanks to Marco Gaiarin).
2864
2865SC/06 Eximstats V1.48
2866 Mainlog lines which have GMT offsets and are too short to
2867 have a flag are now skipped.
2868
2869SC/07 Eximstats V1.49 (Alain Williams)
2870 Added the -emptyok flag.
2871
2872SC/08 Eximstats V1.50
2873 Fixes for obtaining the IP address from reject messages.
2874
0ea2a468
JJ
2875JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2876 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
4c04137d 2877 whitespace changes from 4.64-PH/27
0ea2a468
JJ
2878
2879JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2880 match 4.64-PH/13
2881
2882JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2883 are found, allow negative numbers in numeric criteria)
2884
2885JJ/06 exipick.20061117.2, added new $message_body_missing variable
2886
2887JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2888 to match changes made in 4.64-PH/43
2889
8a10f5a4
PH
2890PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2891
30e18802
PH
2892PH/47 Put in an explicit test for a DNS lookup of an address record where the
2893 "domain" is actually an IP address, and force a failure. This locks out
2894 those revolvers/nameservers that support "A-for-A" lookups, in
2895 contravention of the specifications.
2896
55728a4f
PH
2897PH/48 When a host name was looked up from an IP address, and the subsequent
2898 forward lookup of the name timed out, the host name was left in
2899 $sender_host_name, contrary to the specification.
d7d7b289 2900
d7837193
PH
2901PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2902 restricted to single-key lookups, Exim was not diagnosing an error if
2903 * or *@ was used with a query-style lookup.
2904
87054a31
PH
2905PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2906
ea2c01d2
MH
2907MH/01 local_scan ABI version incremented to 1.1. It should have been updated
2908 long ago, but noone interested enough thought of it. Let's just say that
2909 the "1.1" means that there are some new functions that weren't there at
2910 some point in the past.
2911
e4fa6968
PH
2912PH/51 Error processing for expansion failure of helo_data from an smtp
2913 transport during callout processing was broken.
2914
56f5d9bd
PH
2915PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
2916 tested/used via the -bh/-bhc/-bs options.
2917
922e1c28
PH
2918PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
2919 bug, fixed in subsequent PCRE releases).
2920
21eb6e72
PH
2921PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
2922 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
2923
a0540757
PH
2924PH/55 Check for a ridiculously long file name in exim_dbmbuild.
2925
944e9e9c 2926
478be7b0
SC
2927Exim version 4.63
2928-----------------
2929
2930SC/01 Use a glob alias rather than an array ref in eximstats generated
2931 parser. This improves both readability and performance.
2932
2933SC/02 Collect SpamAssassin and rejection statistics in eximstats.
2934 Don't display local sender or destination tables in eximstats unless
2935 there is data to show.
2936 Added average volumes into the eximstats top table text output.
2937
2938SC/03 Collect data on the number of addresses (recipients) as well
2939 as the number of messages in eximstats.
2940
2b965a65
TF
2941TF/01 Correct an error in the documentation for the redirect router. Exim
2942 does (usually) call initgroups() when daemonizing.
478be7b0 2943
45b91596
PH
2944TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
2945 with consistent privilege compared to when running as a daemon.
478be7b0 2946
c59f5781
TF
2947TF/03 Note in the spec that $authenticated_id is not set for local
2948 submissions from trusted users.
2949
90fc3069
TF
2950TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
2951 Thanks to Dean Brooks <dean@iglou.com> for the patch.
2952
6083aca0
TF
2953TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
2954 by adding some example configuration directives to the default
2955 configuration file. A little bit of work is required to uncomment the
2956 directives and define how usernames and passwords are checked, but
2957 there is now a framework to start from.
2958
765b530f
PH
2959PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
2960 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
2961 without this. I don't know how relevant this is to other LDAP libraries.
2962
4e167a8c
PH
2963PH/02 Add the verb name to the "unknown ACL verb" error.
2964
4608d683
PH
2965PH/03 Magnus Holmgren's patch for filter_prepend_home.
2966
b8dc3e4a
PH
2967PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
2968
5418e93b
PH
2969PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
2970 directory not expanded when it should be if an expanded home directory
2971 was set for the address (which is overridden by the transport).
2972
b4a9bda2
PH
2973PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
2974 libradius.
2975
45b91596
PH
2976PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
2977 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
2978 because it is too late at that time, and has no effect.
2979
5547e2c5
PH
2980PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
2981 security issue with \' (bugzilla #107). I could not use the
2982 PQescapeStringConn() function, because it needs a PGconn value as one of
2983 its arguments.
2984
dbcef0ea
PH
2985PH/08 When testing addresses using -bt, indicate those final addresses that
2986 are duplicates that would not cause an additional delivery. At least one
2987 person was confused, thinking that -bt output corresponded to deliveries.
2988 (Suppressing duplicates isn't a good idea as you lose the information
2989 about possibly different redirections that led to the duplicates.)
2990
25257489
PH
2991PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
2992 systems where poll() doesn't work, in particular OS X.
2993
c816d124
PH
2994PH/10 Added more information to debugging output for retry time not reached.
2995
a9ccd69a
PH
2996PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
2997 operations in malware.c.
2998
75fa1910
PH
2999PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
3000 signatures.
3001
a7d7aa58
PH
3002PH/13 If write_rejectlog was set false when logging was sent to syslog with
3003 syslog_duplication set false, log lines that would normally be written
3004 both the the main log and to the reject log were not written to syslog at
3005 all.
3006
42119b09
PH
3007PH/14 In the default configuration, change the use of "message" in ACL warn
3008 statements to "add_header".
3009
41609df5
PH
3010PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
3011 not followed by a command (e.g. "seen endif").
3012
a5bd321b
PH
3013PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
3014 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
3015 latter.
3016
e85a7ad5 3017PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
3018 so that it is now:
3019
e85a7ad5
PH
3020 ${if or { \
3021 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
3022 { match{$h_precedence:}{(?i)bulk|list|junk} } \
3023 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
3024 }{no}{yes}}
3025
e85a7ad5
PH
3026 The Auto-Submitted: and various List- headers are standardised, whereas I
3027 don't think Precedence: ever was.
5dff5817 3028
d8fe1c03
PH
3029PH/18 Refactored debugging code in route_finduser() to show more information,
3030 in particular, the error code if getpwnam() issues one.
3031
16282d2b
PH
3032PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
3033 This is apparently needed in addition to the PH/07 change above to avoid
3034 any possible encoding problems.
3035
35d40a98
PH
3036PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
3037 but not after initializing Perl.
3038
034d99ab
PH
3039PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
3040 output them only if debugging. By default they are written stderr,
3041 apparently, which is not desirable.
3042
6ec97b1b
PH
3043PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
3044 queries.
3045
e22ca4ac
JJ
3046JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
3047 --not options
3048
3049JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
3050
33d73e3b
PH
3051PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
3052 authenticated or an ident call has been made. Suppress the default
3053 values for $authenticated_id and $authenticated_sender (but permit -oMai
3054 and -oMas) when testing with -bh.
3055
9ecb03f3
PH
3056PH/24 Re-jigged the order of the tests in the default configuration so that the
3057 tests for valid domains and recipients precede the DNS black list and CSA
3058 tests, on the grounds that those ones are more expensive.
3059
084efe8d
PH
3060PH/25 Exim was not testing for a space following SMTP commands such as EHLO
3061 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
3062 This bug exists in every version of Exim that I still have, right back to
3063 0.12.
3064
366fc9f0
PH
3065PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
3066 However, an attempt to turn on case-sensitivity in a regex key by
3067 including (?-i) didn't work because the subject string was already
3068 lowercased, and the effects were non-intuitive. It turns out that a
3069 one-line patch can be used to allow (?-i) to work as expected.
3070
c59f5781 3071
c887c79e
TF
3072Exim version 4.62
3073-----------------
3074
3075TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
3076 other effects) broke the use of negated acl sub-conditions.
3077
1cce3af8
PH
3078PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
3079 patch).
3080
afb3eaaf
PH
3081PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
3082 "Deny" causes Exim to reject the incoming connection with a 554 error.
3083 Unfortunately, if there is a major crisis, such as a disk failure,
3084 tcp-wrappers gives "deny", whereas what one would like would be some
3085 kind of temporary error. A kludge has been added to help with this.
3086 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
3087 554 error is used if errno is still zero or contains ENOENT (which occurs
3088 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
3089 451 error is used.
3090
e173618b
PH
3091PH/03 Add -lutil to the default FreeBSD LIBS setting.
3092
dd16e114
PH
3093PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
3094 errors. Otherwise a message that provokes a temporary error (when other
3095 messages do not) can cause a whole host to time out.
3096
f7fd3850
PH
3097PH/05 Batch deliveries by appendfile and pipe transports did not work when the
3098 addresses were routed directly to files or pipes from a redirect router.
3099 File deliveries just didn't batch; pipe deliveries might have suffered
3100 odd errors.
3101
d87df92c
PH
3102PH/06 A failure to get a lock for a hints database would erroneously always say
3103 "Failed to get write lock", even when it was really a read lock.
3104
7e9f683d
PH
3105PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3106 of 0600. This has been changed to use the value of the lockfile_mode
3107 option (which defaults to 0600).
3108
bfad5236
PH
3109PH/08 Applied small patch from the Sieve maintainer.
3110
01c490df
PH
3111PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3112 folder from quota calculations, a direct delivery into this folder messed
3113 up the contents of the maildirsize file. This was because the regex was
3114 used only to exclude .Trash (or whatever) when the size of the mailbox
3115 was calculated. There was no check that a delivery was happening into an
3116 excluded directory. This bug has been fixed by ignoring all quota
3117 processing for deliveries into excluded directories.
3118
d6629cdc
PH
3119PH/10 Added the maildirfolder_create_regex option to appendfile.
3120
1cce3af8 3121
214e2000
PH
3122Exim version 4.61
3123-----------------
3124
3125PH/01 The code for finding all the local interface addresses on a FreeBSD
3126 system running IPv6 was broken. This may well have applied to all BSD
3127 systems, as well as to others that have similar system calls. The broken
3128 code found IPv4 interfaces correctly, but gave incorrect values for the
3129 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3130 that it would not match correctly against @[] and not recognize the IPv6
3131 addresses as local.
3132
f9daeae0
PH
3133PH/02 The ipliteral router was not recognizing addresses of the form user@
3134 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3135
7e66e54d
PH
3136PH/03 Added disable_ipv6.
3137
c8ea1597
PH
3138PH/04 Changed $reply_address to use the raw form of the headers instead of the
3139 decoded form, because it is most often used to construct To: headers
3140 lines in autoreplies, and the decoded form may well be syntactically
3141 invalid. However, $reply_address has leading white space removed, and all
3142 newlines turned into spaces so that the autoreply transport does not
3143 grumble.
3144
911f6fde
PH
3145PH/05 If group was specified without a user on a router, and no group or user
3146 was specified on a transport, the group from the router was ignored.
3147
47ca6d6c
PH
3148PH/06 Increased the number of ACL variables to 20 of each type, and arranged
3149 for visible compile-time settings that can be used to change these
3150 numbers, for those that want even more. Backwards compatibility with old
3151 spool files has been maintained. However, going back to a previous Exim
3152 release will lost any variables that are in spool files.
3153
ed0e9820
PH
3154PH/07 Two small changes when running in the test harness: increase delay when
3155 passing a TCP/IP connection to a new process, in case the original
3156 process has to generate a bounce, and remove special handling of
3157 127.0.0.2 (sic), which is no longer necessary.
3158
eff37e47
PH
3159PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
3160 be the same on different OS.
3161
1921d2ea
PH
3162PH/09 Moved a debug statement in filter processing to avoid a race problem when
3163 testing.
3164
b3f69ca8
JJ
3165JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
3166 whether --show-vars was specified or not
3167
3168JJ/02 exipick: Added support for new ACL variable spool format introduced
3169 in 4.61-PH/06
3170
424a1c63
PH
3171PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
3172 syntactically invalid From: or Reply-to: line, and a filter used this to
3173 generate an autoreply, and therefore failed to obtain an address for the
3174 autoreply, Exim could try to deliver to a non-existent relative file
3175 name, causing unrelated and misleading errors. What now happens is that
3176 it logs this as a hard delivery error, but does not attempt to create a
3177 bounce message.
3178
7a100415
PH
3179PH/11 The exinext utility has a -C option for testing purposes, but although
3180 the given file was scanned by exinext itself; it wasn't being passed on
3181 when Exim was called.
3182
19b9dc85
PH
3183PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
3184 an end-of-file indication when reading a command response.
3185
309bd837
PH
3186PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
3187 compiled. In many other places in Exim, IPv6 addresses are always
3188 recognized, so I have changed this. It also means that IPv4 domain
3189 literals of the form [IPV4:n.n.n.n] are now always recognized.
3190
59e82a2a
PH
3191PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
3192 used if the router is not running as root, for example, when verifying at
3193 ACL time, or when using -bh. The debugging output from this situation was
3194 non-existent - all you got was a failure to exec. I have made two
3195 changes:
3196
3197 (a) Failures to set uid/gid, the current directory, or a process leader
3198 in a subprocess such as that created by queryprogram now generate
4c04137d 3199 suitable debugging output when -d is set.
59e82a2a
PH
3200
3201 (b) The queryprogram router detects when it is not running as root,
3202 outputs suitable debugging information if -d is set, and then runs
3203 the subprocess without attempting to change uid/gid.
3204
9edc04ce
PH
3205PH/15 Minor change to Makefile for building test_host (undocumented testing
3206 feature).
3207
1349e1e5
PH
3208PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
3209 additional section of a DNS packet that returns MX or SRV records.
3210 Instead, it always explicitly searches for A/AAAA records. This avoids
3211 major problems that occur when a DNS server includes only records of one
3212 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
3213 fixed another bug: if SRV records were looked up and the corresponding
3214 address records were *not* found in the additional section, the port
3215 values from the SRV records were lost.
3216
ea49d0e1
PH
3217PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
3218 using the correct key (the original address) when searching the retry
3219 rules in order to find which one to use for generating the retry hint.
3220
064a94c9
PH
3221PH/18 If quota_warn_message contains a From: header, Exim now refrains from
3222 adding the default one. Similarly, if it contains a Reply-To: header, the
3223 errors_reply_to option, if set, is not used.
3224
727071f8
PH
3225PH/19 When calculating a retry time, Exim used to measure the "time since
3226 failure" by looking at the "first failed" field in the retry record. Now
3227 it does not use this if it is later than than the arrival time of the
3228 message. Instead it uses the arrival time. This makes for better
3229 behaviour in cases where some deliveries succeed, thus re-setting the
3230 "first failed" field. An example is a quota failure for a huge message
3231 when small messages continue to be delivered. Without this change, the
3232 "time since failure" will always be short, possible causing more frequent
3233 delivery attempts for the huge message than are intended.
dd16e114 3234 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 3235
f78eb7c6
PH
3236PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
3237 $1, $2, $3) because the numerical variables can be reset during some
3238 expansion items (e.g. "match"), thereby losing the authentication data.
3239
21c28500
PH
3240PH/21 Make -bV show the size of off_t variables so that the test suite can
3241 decide whether to run tests for quotas > 2G.
3242
3243PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
3244 mailbox_size, and mailbox_filecount in the appendfile transport. If a
3245 filecount value is greater than 2G or if a quota value is greater than 2G
3246 on a system where the size of off_t is not greater than 4, a panic error
3247 is given.
3248
1688f43b
PH
3249PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
3250 never match. The debug and -bh output now contains an explicit error
3251 message indicating a malformed IPv4 address or mask.
3252
3253PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
3254 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
3255 PH/23 above applies.
3256
9675b384
PH
3257PH/25 Do not write to syslog when running in the test harness. The only
3258 occasion when this arises is a failure to open the main or panic logs
3259 (for which there is an explicit test).
3260
6a3f1455
PH
3261PH/26 Added the /no_tell option to "control=freeze".
3262
dac79d3e
PH
3263PH/27 If a host name lookup failed very early in a connection, for example, if
3264 the IP address matched host_lookup and the reverse lookup yielded a name
3265 that did not have a forward lookup, an error message of the form "no IP
3266 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
3267 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 3268