Documentation for multiple TCP clamd servers
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
495ae4b0
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1Change log file for Exim from version 4.21
2-------------------------------------------
3
2c422e6f 4Exim version 4.82
98a90c36
PP
5-----------------
6
7PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
8
12f69989
PP
9PP/02 Make -n do something, by making it not do something.
10 When combined with -bP, the name of an option is not output.
11
54c90be1
PP
12PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
13 by GnuTLS.
14
1f4a55da
PP
15PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
16 $sender_host_name and config options to manage this, and basic check
17 routines.
18
13363eba 19PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 20
66645890 21PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
22 (Only plugin which currently uses this is kerberos4, which nobody should
23 be using, but we should make it available and other future plugins might
24 conceivably use it, even though it would break NAT; stuff *should* be
25 using channel bindings instead).
66645890 26
a3fb9793 27PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
28 name; added for Sendmail compatibility; requires admin caller.
29 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
30 just ignore it); requires trusted caller.
a3fb9793 31 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 32 Bugzilla 1117.
a3fb9793 33
d27f98fe 34TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 35
6822b909
TL
36TL/02 Add +smtp_confirmation as a default logging option.
37
e7568d51
TL
38TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
39 Patch by Magnus Holmgren from 2007-02-20.
40
ae0e32ee 41TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 42 Bugzilla 1283 - Spec typo.
97f42f10 43 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
44
45TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 46
e2658fff
TL
47TL/06 Add Experimental DMARC support using libopendmarc libraries.
48
83712b39
TL
49TL/07 Fix an out of order global option causing a segfault. Reported to dev
50 mailing list by by Dmitry Isaikin.
51
976b7e9f
JH
52JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
53
be4a1376
JH
54JH/02 Support "G" suffix to numbers in ${if comparisons.
55
ec4b68e5
PP
56PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
57
d7148a07
NM
58NM/01 Bugzilla 1197 - Spec typo
59 Bugzilla 1196 - Spec examples corrections
ec4b68e5 60
585121e2 61JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 62
a5f239e4
PP
63PP/09 Add gnutls_enable_pkcs11 option.
64
13d08c90
PP
65PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
66 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
67
bef3ea7f
JH
68JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
69 "acl {{name}{arg}...}", and optional args on acl condition
70 "acl = name arg..."
a5f239e4 71
846726c5
JH
72JH/05 Permit multiple router/transport headers_add/remove lines.
73
3a796370
JH
74JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
75
ea722490 76JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
77 Performance patch from Paul Fisher. Bugzilla 1262.
78
b1b05573
JH
79JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
80 Bugzilla 884.
81
362145b5
JH
82JH/09 Add $headers_added variable, with content from use of ACL modifier
83 add_header (but not yet added to the message). Bugzilla 199.
84
3c0a92dc
JH
85JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
86 Pulled from Bugzilla 817 by Wolfgang Breyha.
87
6d7c6175
PP
88PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
89 CVE-2012-5671
e78e6ecf 90 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 91
6f123593
JH
92JH/11 Add A= logging on delivery lines, and a client_set_id option on
93 authenticators.
94
c8e2fc1e
JH
95JH/12 Add optional authenticated_sender logging to A= and a log_selector
96 for control.
97
005ac57f
PP
98PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
99
3f1df0e3
PP
100PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
101 advertise SMTP AUTH mechanism to us, instead of a generic
102 protocol violation error. Also, make Exim more robust to bad
103 data from the Dovecot auth socket.
104
67bd1ab3
TF
105TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
106
107 When a queue runner is handling a message, Exim first routes the
108 recipient addresses, during which it prunes them based on the retry
109 hints database. After that it attempts to deliver the message to
110 any remaining recipients. It then updates the hints database using
111 the retry rules.
112
113 So if a recipient address works intermittently, it can get repeatedly
114 deferred at routing time. The retry hints record remains fresh so the
115 address never reaches the final cutoff time.
116
117 This is a fairly common occurrence when a user is bumping up against
118 their storage quota. Exim had some logic in its local delivery code
119 to deal with this. However it did not apply to per-recipient defers
120 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
121
1ddeb334
TF
122 This change adds a proper retry rule check during routing so that the
123 final cutoff time is checked against the message's age. We only do
124 this check if there is an address retry record and there is not a
125 domain retry record; this implies that previous attempts to handle
126 the address had the retry_use_local_parts option turned on. We use
127 this as an approximation for the destination being like a local
128 delivery, as in LMTP.
67bd1ab3
TF
129
130 I suspect this new check makes the old local delivery cutoff check
131 redundant, but I have not verified this so I left the code in place.
132
326cdc37
TF
133TF/02 Correct gecos expansion when From: is a prefix of the username.
134
135 Test 0254 submits a message to Exim with the header
136
137 Resent-From: f
138
139 When I ran the test suite under the user fanf2, Exim expanded
140 the header to contain my full name, whereas it should have added
141 a Resent-Sender: header. It erroneously treats any prefix of the
142 username as equal to the username.
143
144 This change corrects that bug.
145
f62514b3
GF
146GF/01 DCC debug and logging tidyup
147 Error conditions log to paniclog rather than rejectlog.
148 Debug lines prefixed by "DCC: " to remove any ambiguity.
149
eb505532
TF
150TF/03 Avoid unnecessary rebuilds of lookup-related code.
151
14c7b357
PP
152PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
153 Bug spotted by Jeremy Harris; was flawed since initial commit.
154 Would have resulted in OCSP responses post-SNI triggering an Exim
155 NULL dereference and crash.
156
94eaf700
PP
157JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
158
6f5a440a
PP
159PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
160 Bug detection, analysis and fix by Samuel Thibault.
161 Bugzilla 1331, Debian bug #698092.
162
514ee161
SC
163SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
164
fd98a5c6
JH
165JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
166 Server implementation by Todd Lyons, client by JH.
167 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
168 config variable "prdr_enable" controls whether the server
169 advertises the facility. If the client requests PRDR a new
170 acl_data_smtp_prdr ACL is called once for each recipient, after
171 the body content is received and before the acl_smtp_data ACL.
172 The client is controlled by bolth of: a hosts_try_prdr option
173 on the smtp transport, and the server advertisement.
174 Default client logging of deliveries and rejections involving
175 PRDR are flagged with the string "PRDR".
176
035c7f1e
PP
177PP/16 Fix problems caused by timeouts during quit ACLs trying to double
178 fclose(). Diagnosis by Todd Lyons.
179
ff284120
PP
180PP/17 Update configure.default to handle IPv6 localhost better.
181 Patch by Alain Williams (plus minor tweaks).
182 Bugzilla 880.
183
26e72755
PP
184PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
185 This is now consistent with GnuTLS, and is now documented: the
186 previous undocumented portable approach to treating the option as
187 unset was to force an expansion failure. That still works, and
188 an empty string is now equivalent.
189
0fbd9bff
PP
190PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
191 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
192 not performing validation itself.
193
700d22f3
PP
194PP/20 Added force_command boolean option to pipe transport.
195 Patch from Nick Koston, of cPanel Inc.
196
fcc8e047
JH
197JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
198 Bugzilla 321, 823.
199
7142daca
PP
200TF/04 Added udpsend ACL modifer and hexquote expansion operator
201
8c020188
PP
202PP/21 Fix eximon continuous updating with timestamped log-files.
203 Broken in a format-string cleanup in 4.80, missed when I repaired the
204 other false fix of the same issue.
205 Report and fix from Heiko Schlichting.
206 Bugzilla 1363.
207
d13cdd30
PP
208PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
209 Report from Prashanth Katuri.
210
e2fbf4a2
PP
211PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
212 It's SecureTransport, so affects any MacOS clients which use the
213 system-integrated TLS libraries, including email clients.
214
f4c1088b
PP
215PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
216 using a MIME ACL for non-SMTP local injection.
217 Report and assistance in diagnosis by Warren Baker.
218
c5c2182f
PP
219TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
220
73431ca9
JH
221JH/16 Fix comparisons for 64b. Bugzilla 1385.
222
2d07a215
TL
223TL/09 Add expansion variable $authenticated_fail_id to keep track of
224 last id that failed so it may be referenced in subsequent ACL's.
225
a30a8861
TL
226TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
227 Alexander Miroch.
228
33382dd9
TL
229TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
230 ldap library initialization, allowing self-signed CA's to be
231 used. Also properly sets require_cert option later in code by
232 using NULL (global ldap config) instead of ldap handle (per
233 session). Bug diagnosis and testing by alxgomz.
6d7c6175 234
046172e6
TL
235TL/12 Enhanced documentation in the ratelimit.pl script provided in
236 the src/util/ subdirectory.
237
1a7b746d
TL
238TL/13 Bug 1301 - Imported transport SQL logging patch from Axel Rau
239 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
240 EXPERIMENTAL_TPDA.
241
242TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
243 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
244 redis_servers = needs to be configured which will be used by the redis
245 lookup. Patch from Warren Baker, of The Packet Hub.
246
237b2cf2
TL
247TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
248
9fc5a352
TL
249TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
250 hostname or reverse DNS when processing a host list. Used suggestions
251 from multiple comments on this bug.
1a7b746d 252
b10e4ec2
TL
253TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
254
e78e6ecf 255
4263f395
PP
256Exim version 4.80.1
257-------------------
258
259PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
260 CVE-2012-5671
2c422e6f 261 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 262
ea722490 263
b1770b6e 264Exim version 4.80
0599f9cf
PP
265-----------------
266
267PP/01 Handle short writes when writing local log-files.
268 In practice, only affects FreeBSD (8 onwards).
269 Bugzilla 1053, with thanks to Dmitry Isaikin.
270
23c7e742
NM
271NM/01 Bugzilla 949 - Documentation tweak
272
b322aac8
NM
273NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
274 improved.
275
4a891427
NM
276NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
277
c1e794ba 278PP/02 Implemented gsasl authenticator.
b322aac8 279
97753960
PP
280PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
281
282PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
283 `pkg-config foo` for cflags/libs.
284
df6303fa
PP
285PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
286 with rest of GSASL and with heimdal_gssapi.
287
7e6a8985
PP
288PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
289 `pkg-config foo` for cflags/libs for the TLS implementation.
290
f1e05cc7 291PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
292 properties get this fed in as external SSF. A number of robustness
293 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 294
4c287009
PP
295PP/08 cyrus_sasl server now expands the server_realm option.
296
b98bb9ac
PP
297PP/09 Bugzilla 1214 - Log authentication information in reject log.
298 Patch by Jeremy Harris.
299
4a6a987a
PP
300PP/10 Added dbmjz lookup type.
301
c45dd180 302PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 303
7db8d074
PP
304PP/12 MAIL args handles TAB as well as SP, for better interop with
305 non-compliant senders.
306 Analysis and variant patch by Todd Lyons.
307
eae0036b 308NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
e0df1c83
DM
309 Bug report from Lars Müller <lars@samba.org> (via SUSE),
310 Patch from Dirk Mueller <dmueller@suse.com>
311
dec5017e
PP
312PP/13 tls_peerdn now print-escaped for spool files.
313 Observed some $tls_peerdn in wild which contained \n, which resulted
314 in spool file corruption.
315
c80c5570
PP
316PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
317 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
318 or write after TLS renegotiation, which otherwise led to messages
319 "Got SSL error 2".
320
076b11e2
PP
321TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
322 as a tracking header (ie: a signed header comes before the signature).
323 Patch from Wolfgang Breyha.
324
5407bfff
JH
325JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
326 comma-sep list; embedded commas doubled.
327
9e45c72b
PP
328JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
329
e74376d8
PP
330PP/15 LDAP: Check for errors of TLS initialisation, to give correct
331 diagnostics.
332 Report and patch from Dmitry Banschikov.
333
da3ad30d
PP
334PP/16 Removed "dont_insert_empty_fragments" fron "openssl_options".
335 Removed SSL_clear() after SSL_new() which led to protocol negotiation
336 failures. We appear to now support TLS1.1+ with Exim.
337
7be682ca
PP
338PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
339 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
340 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
341 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 342
ef840681
PP
343PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
344 NULL dereference. Report and patch from Alun Jones.
345
5bfb4cdf
PP
346PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
347 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
348 Not seeing resolver debug output on NetBSD, but suspect this is a
349 resolver implementation change.
350
c6e95d22
PP
351PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
352 Left warnings. Added "eximon gdb" invocation mode.
353
9cbad13b
PP
354PP/21 Defaulting "accept_8bitmime" to true, not false.
355
9ee44efb
PP
356PP/22 Added -bw for inetd wait mode support.
357
6a6084f8
PP
358PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
359 locate the relevant includes and libraries. Made this the default.
360
12dd53c7
PP
361PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
362 Bugzilla 1246, report and most of solution from Tomasz Kusy.
363
9e45c72b 364JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
365 This may cause build issues on older platforms.
366
17c76198
PP
367PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
368 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
369 gnutls_require_mac & gnutls_require_protocols (no longer supported).
370 Added SNI support via GnuTLS too.
af3498d6 371 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 372
53947857 373PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 374
eae0036b 375PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
376 Applied second patch from Janne, implementing suggestion to default
377 multiple-strings-in-record handling to match SPF spec.
eae0036b 378
9e45c72b 379JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 380
7390e768
PP
381PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
382 read-only, out of scope).
383 Patch from Wolfgang Breyha, report from Stuart Northfield.
384
08488c86
PP
385PP/29 Fix three issues highlighted by clang analyser static analysis.
386 Only crash-plausible issue would require the Cambridge-specific
387 iplookup router and a misconfiguration.
388 Report from Marcin Mirosław.
389
6475bd82
PP
390PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
391
81f91683
PP
392PP/31 %D in printf continues to cause issues (-Wformat=security), so for
393 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
394 As part of this, removing so much warning spew let me fix some minor
395 real issues in debug logging.
396
5779e6aa
PP
397PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
398 assignment on my part. Fixed.
399
3375e053
PP
400PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
401 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
402 Janne Snabb (who went above and beyond: thank you).
403
404PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
405 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
406 relatively easy to get wrong. Should also expose TLS library linkage
407 problems.
3375e053 408
9d26b8c0
PP
409PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
410 64-bit ${eval} (JH/03).
411
57eb9e91 412PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
413 GNU libc to support some of the 64-bit stuff, should not lead to
414 conflicts. Defined before os.h is pulled in, so if a given platform
415 needs to override this, it can.
416
16880d1a
PP
417PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
418 protection layer was required, which is not implemented.
419 Bugzilla 1254, patch from Wolfgang Breyha.
420
a799883d
PP
421PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
422 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
423 tls_dhparam take prime identifiers. Also unbreak combination of
424 OpenSSL+DH_params+TLSSNI.
425
3ecab157 426PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 427
0599f9cf 428
867fcbf5
PP
429Exim version 4.77
430-----------------
431
432PP/01 Solaris build fix for Oracle's LDAP libraries.
433 Bugzilla 1109, patch from Stephen Usher.
434
f1a29782
TF
435TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
436
ab42bd23
TK
437TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
438 whitespace trailer
867fcbf5 439
0ca0cf52
TF
440TF/02 Fix a couple more cases where we did not log the error message
441 when unlink() failed. See also change 4.74-TF/03.
442
921b12ca
TF
443TF/03 Make the exiwhat support code safe for signals. Previously Exim might
444 lock up or crash if it happened to be inside a call to libc when it
445 got a SIGUSR1 from exiwhat.
446
447 The SIGUSR1 handler appends the current process status to the process
448 log which is later printed by exiwhat. It used to use the general
449 purpose logging code to do this, but several functions it calls are
450 not safe for signals.
451
452 The new output code in the SIGUSR1 handler is specific to the process
453 log, and simple enough that it's easy to inspect for signal safety.
454 Removing some special cases also simplifies the general logging code.
455 Removing the spurious timestamps from the process log simplifies
456 exiwhat.
457
c99ce5c9
TF
458TF/04 Improved ratelimit ACL condition.
459
460 The /noupdate option has been deprecated in favour of /readonly which
461 has clearer semantics. The /leaky, /strict, and /readonly update modes
462 are mutually exclusive. The update mode is no longer included in the
463 database key; it just determines when the database is updated. (This
464 means that when you upgrde Exim will forget old rate measurements.)
465
466 Exim now checks that the per_* options are used with an update mode that
467 makes sense for the current ACL. For example, when Exim is processing a
468 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
469 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
470 must specify per_mail/readonly. If you omit the update mode it defaults to
471 /leaky where that makes sense (as before) or /readonly where required.
472
473 The /noupdate option is now undocumented but still supported for
474 backwards compatibility. It is equivalent to /readonly except that in
475 ACLs where /readonly is required you may specify /leaky/noupdate or
476 /strict/noupdate which are treated the same as /readonly.
477
478 A useful new feature is the /count= option. This is a generalization
479 of the per_byte option, so that you can measure the throughput of other
480 aggregate values. For example, the per_byte option is now equivalent
481 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
482
483 The per_rcpt option has been generalized using the /count= mechanism
484 (though it's more complicated than the per_byte equivalence). When it is
485 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
486 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
487 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
488 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
489 Note that using per_rcpt with a non-readonly update mode in more than
490 one ACL will cause the recipients to be double-counted. (The per_mail
491 and per_byte options don't have this problem.)
492
493 The handling of very low rates has changed slightly. If the computed rate
494 is less than the event's count (usually one) then this event is the first
495 after a long gap. In this case the rate is set to the same as this event's
496 count, so that the first message of a spam run is counted properly.
497
498 The major new feature is a mechanism for counting the rate of unique
499 events. The new per_addr option counts the number of different
500 recipients that someone has sent messages to in the last time period. It
501 behaves like per_rcpt if all the recipient addresses are different, but
502 duplicate recipient addresses do not increase the measured rate. Like
503 the /count= option this is a general mechanism, so the per_addr option
504 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
505 example, measure the rate that a client uses different sender addresses
506 with the options per_mail/unique=$sender_address. There are further
507 details in the main documentation.
508
3634fc25
TF
509TF/05 Removed obsolete $Cambridge$ CVS revision strings.
510
792e8a19
TF
511TF/06 Removed a few PCRE remnants.
512
5901f0ab
TF
513TF/07 Automatically extract Exim's version number from tags in the git
514 repository when doing development or release builds.
515
7f2a2a43
PP
516PP/02 Raise smtp_cmd_buffer_size to 16kB.
517 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 518
061b7ebd
PP
519PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
520 Heavily based on revision 40f9a89a from Simon Arlott's tree.
521 Bugzilla 97.
522
e12f8c32
PP
523PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
524
9e949f00 525PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
526 Bugzilla 1078. Patch from John Horne.
527
528PP/06 Stop make process more reliably on build failure.
529 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 530
555ae6af 531PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
532 Bugzilla 1089. Patch from Heiko Schlittermann.
533
534PP/08 Handle ${run} returning more data than OS pipe buffer size.
535 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 536
6f7fe114
PP
537PP/09 Handle IPv6 addresses with SPF.
538 Bugzilla 860. Patch from Wolfgang Breyha.
539
c566dd90
PP
540PP/10 GnuTLS: support TLS 1.2 & 1.1.
541 Bugzilla 1156.
89f897c3
PP
542 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
543 Bugzilla 1095.
c566dd90 544
d6cc7c78 545PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
546 New compile-time build option, EXPAND_LISTMATCH_RHS.
547 New expansion conditions, "inlist", "inlisti".
548
0d0e4455
PP
549PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
550
3399bb60 551PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
552
553PP/14 fix log_write() format string regression from TF/03.
554 Bugzilla 1152. Patch from Dmitry Isaikin.
555
0ca0cf52 556
10906672
PP
557Exim version 4.76
558-----------------
559
560PP/01 The new ldap_require_cert option would segfault if used. Fixed.
561
754a0503
PP
562PP/02 Harmonised TLS library version reporting; only show if debugging.
563 Layout now matches that introduced for other libraries in 4.74 PP/03.
564
c0c7b2da
PP
565PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
566
e97d1f08
PP
567PP/04 New "dns_use_edns0" global option.
568
084c1d8c
PP
569PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
570 Bugzilla 1098.
571
4e7ee012
PP
572PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
573 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 574
c8d52a00
PP
575TK/01 Updated PolarSSL code to 0.14.2.
576 Bugzilla 1097. Patch from Andreas Metzler.
577
54e7ce4a
PP
578PP/07 Catch divide-by-zero in ${eval:...}.
579 Fixes bugzilla 1102.
580
5ee6f336
PP
581PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
582 Bugzilla 1104.
583
c8d52a00 584TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
585 format-string attack -- SECURITY: remote arbitrary code execution.
586
587TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
588 time unintentionally subject to list matching rules, letting the header
589 cause arbitrary Exim lookups (of items which can occur in lists, *not*
590 arbitrary string expansion). This allowed for information disclosure.
591
592PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
593 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 594
10906672 595
aa097c4c
NM
596Exim version 4.75
597-----------------
598
4c9ef03a 599NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
600 Bugzilla 1073
601
7f3d9eff
TF
602TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
603 This fixes portability to compilers other than gcc, notably
604 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
605
159f52d2
TF
606TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
607 makefiles for portability to HP-UX and POSIX correctness.
608
0cc9542a
PP
609PP/01 Permit LOOKUP_foo enabling on the make command-line.
610 Also via indented variable definition in the Makefile.
611 (Debugging by Oliver Heesakkers).
612
f7274286
PP
613PP/02 Restore caching of spamd results with expanded spamd_address.
614 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
615
7b797365
PP
616PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
617 Improves build reliability. Fix from: Frank Elsner
618
caacae52
NM
619NM/02 Fix wide character breakage in the rfc2047 coding
620 Fixes bug 1064. Patch from Andrey N. Oktyabrski
621
09dcaba9
NM
622NM/03 Allow underscore in dnslist lookups
623 Fixes bug 1026. Patch from Graeme Fowler
624
bc19a55b
PP
625PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
626 Code patches from Adam Ciarcinski of NetBSD.
caacae52 627
bd4c9759
NM
628NM/04 Fixed exiqgrep to cope with mailq missing size issue
629 Fixes bug 943.
630
b72aab72
PP
631PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
632 is logged, to avoid truncation. Patch from John Horne.
633
2fe76745
PP
634PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
635 Patch from Jakob Hirsch.
636
76aa570c
PP
637PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
638 SQL string expansion failure details.
639 Patch from Andrey Oktyabrski.
640
f1e5fef5
PP
641PP/08 Bugzilla 486: implement %M datestamping in log filenames.
642 Patch from Simon Arlott.
643
4d805ee9
PP
644PP/09 New lookups functionality failed to compile on old gcc which rejects
645 extern declarations in function scope.
646 Patch from Oliver Fleischmann
647
cd59ab18
PP
648PP/10 Use sig_atomic_t for flags set from signal handlers.
649 Check getgroups() return and improve debugging.
650 Fixed developed for diagnosis in bug 927 (which turned out to be
651 a kernel bug).
652
332f5cf3
PP
653PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
654 Patch from Mark Zealey.
655
29cfeb94
PP
656PP/12 Bugzilla 1056: Improved spamd server selection.
657 Patch from Mark Zealey.
658
660242ad
PP
659PP/13 Bugzilla 1086: Deal with maildir quota file races.
660 Based on patch from Heiko Schlittermann.
661
bc4bc4c5
PP
662PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
663 Patch from Uwe Doering, sign-off by Michael Haardt.
664
2e64baa9
NM
665NM/05 Fix to spam.c to accommodate older gcc versions which dislike
666 variable declaration deep within a block. Bug and patch from
667 Dennis Davis.
668
bddd7526
PP
669PP/15 lookups-Makefile IRIX compatibilty coercion.
670
6bac1a9a
PP
671PP/16 Make DISABLE_DKIM build knob functional.
672
552193f0
NM
673NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
674 Patch by Simon Arlott
baeee2c1 675
1b587e48
TF
676TF/03 Fix valgrind.h portability to C89 compilers that do not support
677 variable argument macros. Our copy now differs from upstream.
678
aa097c4c 679
8c07b69f
TF
680Exim version 4.74
681-----------------
682
683TF/01 Failure to get a lock on a hints database can have serious
684 consequences so log it to the panic log.
685
c0ea85ab
TF
686TF/02 Log LMTP confirmation messages in the same way as SMTP,
687 controlled using the smtp_confirmation log selector.
688
0761d44e
TF
689TF/03 Include the error message when we fail to unlink a spool file.
690
0a349494
PP
691DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
692 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
693 for maintaining out-of-tree patches for some time.
694
695PP/01 Bugzilla 139: Documentation and portability issues.
696 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
697 Handle per-OS dynamic-module compilation flags.
698
fea24b2e
PP
699PP/02 Let /dev/null have normal permissions.
700 The 4.73 fixes were a little too stringent and complained about the
701 permissions on /dev/null. Exempt it from some checks.
702 Reported by Andreas M. Kirchwitz.
703
6545de78
PP
704PP/03 Report version information for many libraries, including
705 Exim version information for dynamically loaded libraries. Created
706 version.h, now support a version extension string for distributors
707 who patch heavily. Dynamic module ABI change.
708
1670ef10
PP
709PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
710 privilege escalation vulnerability whereby the Exim run-time user
711 can cause root to append content of the attacker's choosing to
712 arbitrary files.
713
c0886197
PP
714PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
715 (Wolfgang Breyha)
716
b7487bce
PP
717PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
718 If dropping privileges for untrusted macros, we disabled normal logging
719 on the basis that it would fail; for the Exim run-time user, this is not
720 the case, and it resulted in successful deliveries going unlogged.
721 Fixed. Reported by Andreas Metzler.
722
8c07b69f 723
97fd1e48 724Exim version 4.73
ed7f7860 725-----------------
97fd1e48
PP
726
727PP/01 Date: & Message-Id: revert to normally being appended to a message,
728 only prepend for the Resent-* case. Fixes regression introduced in
729 Exim 4.70 by NM/22 for Bugzilla 607.
730
6901c596
PP
731PP/02 Include check_rfc2047_length in configure.default because we're seeing
732 increasing numbers of administrators be bitten by this.
733
a8c8d6b5
JJ
734JJ/01 Added DISABLE_DKIM and comment to src/EDITME
735
77bb000f
PP
736PP/03 Bugzilla 994: added openssl_options main configuration option.
737
a29e5231
PP
738PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
739
ec5a0394 740PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 741
55c75993
PP
742PP/06 Adjust NTLM authentication to handle SASL Initial Response.
743
453a6645 744PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
745 without a peer certificate, leading to a segfault because of an
746 assumption that peers always have certificates. Be a little more
453a6645
PP
747 paranoid. Problem reported by Martin Tscholak.
748
8544e77a
PP
749PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
750 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
751 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
752 CL also introduces -bmalware, various -d+acl logging additions and
753 more caution in buffer sizes.
8544e77a 754
83e029d5
PP
755PP/09 Implemented reverse_ip expansion operator.
756
ed7f7860
PP
757PP/10 Bugzilla 937: provide a "debug" ACL control.
758
7d9f747b
PP
759PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
760
4b2241d2
PP
761PP/12 Bugzilla 973: Implement --version.
762
10385c15
PP
763PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
764
dbc4b90d
PP
765PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
766
532be449
PP
767PP/15 Bugzilla 816: support multiple condition rules on Routers.
768
6a8de854 769PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
770 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
771 ignore trailing whitespace.
6a8de854 772
5dc43717
JJ
773JJ/02 prevent non-panic DKIM error from being sent to paniclog
774
775JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
776 "exim" to be used
55c75993 777
3346ab01
PP
778PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
779 Notification from Dr Andrew Aitchison.
780
491fab4c
PP
781PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
782 ExtendedDetectionInfo response format.
783 Notification from John Horne.
784
13eb9497
PP
785PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
786 compatible.
787
788PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
789 XSL and documented dependency on system catalogs, with examples of how
790 it normally works.
791
7f36d675
DW
792DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
793 access.
794
c1d94452
DW
795DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
796 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
797 configuration file which is writeable by the Exim user or group.
798
e2f5dc15
DW
799DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
800 of configuration files to cover files specified with the -C option if
801 they are going to be used with root privileges, not just the default
802 configuration file.
803
cd25e41d
DW
804DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
805 option (effectively making it always true).
806
261dc43e
DW
807DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
808 files to be used while preserving root privileges.
809
fa32850b
DW
810DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
811 that rogue child processes cannot use them.
812
79d4bc3d
PP
813PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
814 run-time user, instead of root.
815
43236f35 816PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
817 Exim run-time user without dropping privileges.
818
fb08281f
DW
819DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
820 result string, instead of calling string_vformat() twice with the same
821 arguments.
3346ab01 822
74935b98
DW
823DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
824 for other users. Others should always drop root privileges if they use
825 -C on the command line, even for a whitelisted configure file.
826
90b6341f
DW
827DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
828
57730b52
ML
829NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
830
66581d1e 831
465e92cf
JJ
832Exim version 4.72
833-----------------
834
453a6645
PP
835JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
836 $data_path, and $header_path variables; fixed documentation bugs and
837 typos
465e92cf 838
453a6645
PP
839JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
840 exipick to access non-standard spools, including the "frozen" queue
841 (Finput)
edae0343 842
9bd3e22c
NM
843NM/01 Bugzilla 965: Support mysql stored procedures.
844 Patch from Alain Williams
845
bb576ff7
NM
846NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
847
5a1a5845
NM
848NM/03 Bugzilla 955: Documentation fix for max_rcpts.
849 Patch from Andreas Metzler
850
981a9fad
NM
851NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
852 Patch from Kirill Miazine
853
7fc497ee
NM
854NM/05 Bugzilla 671: Added umask to procmail example.
855
1a41defa
JJ
856JJ/03 installed exipick 20100323.0, fixing doc bug
857
a466095c 858NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 859 directory. Notification and patch from Dan Rosenberg.
a466095c 860
94a6bd0b
NM
861TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
862
863TK/02 Improve log output when DKIM signing operation fails.
864
865MH/01 Treat the transport option dkim_domain as a colon separated
866 list, not as a single string, and sign the message with each element,
867 omitting multiple occurences of the same signer.
868
c1b141a8
NM
869NM/07 Null terminate DKIM strings, Null initialise DKIM variable
870 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 871
b26eacf1 872NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
873 Patch by Simon Arlott
874
179c5980 875PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 876 MBX locking. Notification from Dan Rosenberg.
179c5980 877
9bd3e22c 878
7c6d71af
NM
879Exim version 4.71
880-----------------
881
7d9f747b 882TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 883
f013fb92
NM
884NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
885
0eb8eedd
NM
886NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
887
663ee6d9
NM
888NM/03 Bugzilla 847: Enable DNSDB lookup by default.
889
177ebd9b
NM
890NM/04 Bugzilla 915: Flag broken perl installation during build.
891
7c6d71af 892
210f147e
NM
893Exim version 4.70
894-----------------
895
cdd3bb85 896TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 897 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
898
899TK/02 Write list of recipients to X-Envelope-Sender header when building
900 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 901 Hirsch).
cdd3bb85
TK
902
903TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
904 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 905 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
906
907TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
908 by Mark Daniel Reidel <mr@df.eu>.
909
210f147e
NM
910NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
911 When building exim an external PCRE library is now needed -
912 PCRE is a system library on the majority of modern systems.
913 See entry on PCRE_LIBS in EDITME file.
914
deafd5b3
NM
915NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
916 conversation. Added nologin parameter to request.
7d9f747b 917 Patch contributed by Kirill Miazine.
deafd5b3 918
089793a4
TF
919TF/01 Do not log submission mode rewrites if they do not change the address.
920
5f16ca82
TF
921TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
922
dae9d94e 923NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 924 log files in place. Contributed by Roberto Lima.
dae9d94e 925
7d9f747b 926NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 927
06864c44
TF
928TF/03 Bugzilla 615: When checking the local_parts router precondition
929 after a local_part_suffix or local_part_prefix option, Exim now
930 does not use the address's named list lookup cache, since this
931 contains cached lookups for the whole local part.
932
65a7d8c3 933NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 934 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 935
23510047 936TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 937
7d9f747b 938NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 939
7d8eec3a 940NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 941 Patch provided by Jan Srzednicki.
6c588e74 942
89dec7b6
TF
943TF/05 Leading white space used to be stripped from $spam_report which
944 wrecked the formatting. Now it is preserved.
5f28a6e8 945
a99de90c
TF
946TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
947 that they are available at delivery time.
948
e2803e40
TF
949TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
950
7199e1ee
TF
951TF/08 TLS error reporting now respects the incoming_interface and
952 incoming_port log selectors.
953
e276e04b
TF
954TF/09 Produce a more useful error message if an SMTP transport's hosts
955 setting expands to an empty string.
956
ce552449 957NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 958 Patch provided by Phil Pennock.
ce552449 959
e765a0f1 960NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 961 Patch provided by Richard Godbee.
e765a0f1 962
4f054c63 963NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 964 acl_smtp_notquit, added index entry.
4f054c63 965
7d9f747b
PP
966NM/09 Bugzilla 787: Potential buffer overflow in string_format.
967 Patch provided by Eugene Bujak.
24c929a2 968
7d9f747b
PP
969NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
970 accept(). Patch provided by Maxim Dounin.
cf73943b 971
b52bc06e 972NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 973 Patch provided by Phil Pennock.
b52bc06e 974
447de4b0
NM
975NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
976
4c69d561 977NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 978 Patch provided by Brad "anomie" Jorsch.
4c69d561 979
d5c39246 980NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 981 Patch provided by Dean Brooks.
9b989985 982
0b23848a
TK
983TK/05 Add native DKIM support (does not depend on external libraries).
984
8f3414a1 985NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 986 Patch provided by Graeme Fowler.
e2aacdfd 987
fb6f955d
NM
988NM/16 Bugzilla 851: Documentation example syntax fix.
989
990NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 991
7d9f747b
PP
992NM/18 Bugzilla 894: Fix issue with very long lines including comments in
993 lsearch.
dbb0bf41 994
7d9f747b
PP
995NM/19 Bugzilla 745: TLS version reporting.
996 Patch provided by Phil Pennock.
f3766eb5 997
7d9f747b
PP
998NM/20 Bugzilla 167: bool: condition support.
999 Patch provided by Phil Pennock.
36f12725 1000
7d9f747b
PP
1001NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
1002 clients. Patch provided by Phil Pennock.
e6060e2c 1003
7d9f747b
PP
1004NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
1005 Patch provided by Brad "anomie" Jorsch.
5eb690a1 1006
7d9f747b
PP
1007NM/23 Bugzilla 687: Fix misparses in eximstats.
1008 Patch provided by Heiko Schlittermann.
d5c13d66 1009
7d9f747b
PP
1010NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
1011 Patch provided by Heiko Schlittermann.
b2335c0b 1012
7d9f747b 1013NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 1014 plus update to original patch.
f4cd9433 1015
7d9f747b 1016NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 1017
7d9f747b
PP
1018NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
1019 Patch provided by David Brownlee.
8dc71ab3 1020
7d9f747b 1021NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 1022
7d9f747b 1023NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 1024
7d9f747b 1025NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 1026
7d9f747b 1027NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 1028
17792b53 1029NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 1030 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 1031
7d9f747b
PP
1032NM/33 Bugzilla 898: Transport filter timeout fix.
1033 Patch by Todd Rinaldo.
52383f8f 1034
91576cec 1035NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 1036 Patch by Serge Demonchaux.
5ca6d115 1037
7d9f747b
PP
1038NM/35 Bugzilla 39: Base64 decode bug fixes.
1039 Patch by Jakob Hirsch.
baee9eee 1040
7d9f747b 1041NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 1042
7d9f747b 1043NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 1044
7d9f747b 1045NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 1046
7d9f747b 1047NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 1048
deafd5b3 1049
47db1125
NM
1050Exim version 4.69
1051-----------------
1052
4b3504d0
TK
1053TK/01 Add preliminary DKIM support. Currently requires a forked version of
1054 ALT-N's libdkim that I have put here:
1055 http://duncanthrax.net/exim-experimental/
1056
1057 Note to Michael Haardt: I had to rename some vars in sieve.c. They
1058 were called 'true' and it seems that C99 defines that as a reserved
1059 keyword to be used with 'bool' variable types. That means you could
1060 not include C99-style headers which use bools without triggering
1061 build errors in sieve.c.
1062
81ea09ca
NM
1063NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
1064 as mailq or other aliases. Changed the --help handling significantly
1065 to do whats expected. exim_usage() emits usage/help information.
1066
f13cddcb
SC
1067SC/01 Added the -bylocaldomain option to eximstats.
1068
7d9f747b 1069NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 1070
7d9f747b 1071NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 1072
7d9f747b 1073NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
1074
1075
eb4c0de6
PH
1076Exim version 4.68
1077-----------------
1078
1079PH/01 Another patch from the Sieve maintainer.
1080
6a3bceb1
PH
1081PH/02 When an IPv6 address is converted to a string for single-key lookup
1082 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
1083 dots are used instead of colons so that keys in lsearch files need not
1084 contain colons. This was done some time before quoting was made available
1085 in lsearch files. However, iplsearch files do require colons in IPv6 keys
1086 (notated using the quote facility) so as to distinguish them from IPv4
1087 keys. This meant that lookups for IP addresses in host lists did not work
1088 for iplsearch lookups.
1089
1090 This has been fixed by arranging for IPv6 addresses to be expressed with
1091 colons if the lookup type is iplsearch. This is not incompatible, because
1092 previously such lookups could never work.
1093
1094 The situation is now rather anomolous, since one *can* have colons in
1095 ordinary lsearch keys. However, making the change in all cases is
1096 incompatible and would probably break a number of configurations.
1097
2e30fa9d
TK
1098TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
1099 version.
1100
0806a9c5
MH
1101MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
1102 conversion specification without a maximum field width, thereby enabling
1103 a rogue spamd server to cause a buffer overflow. While nobody in their
1104 right mind would setup Exim to query an untrusted spamd server, an
1105 attacker that gains access to a server running spamd could potentially
1106 exploit this vulnerability to run arbitrary code as the Exim user.
1107
ae276964
TK
1108TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
1109 $primary_hostname instead of what libspf2 thinks the hosts name is.
1110
0f2cbd1b
MH
1111MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
1112 a directory entry by the name of the lookup key. Previously, if a
1113 symlink pointed to a non-existing file or a file in a directory that
1114 Exim lacked permissions to read, a lookup for a key matching that
1115 symlink would fail. Now it is enough that a matching directory entry
1116 exists, symlink or not. (Bugzilla 503.)
1117
2b85bce7
PH
1118PH/03 The body_linecount and body_zerocount variables are now exported in the
1119 local_scan API.
1120
93655c46
PH
1121PH/04 Added the $dnslist_matched variable.
1122
6c512171
PH
1123PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
1124 This means they are set thereafter only if the connection becomes
1125 encrypted.
1126
1127PH/06 Added the client_condition to authenticators so that some can be skipped
1128 by clients under certain conditions.
1129
aa6dc513
PH
1130PH/07 The error message for a badly-placed control=no_multiline_responses left
1131 "_responses" off the end of the name.
1132
a96603a0
PH
1133PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
1134
8f240103
PH
1135PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
1136 (without spaces) instead of just copying the configuration text.
1137
1138PH/10 Added the /noupdate option to the ratelimit ACL condition.
1139
d677b2f2
PH
1140PH/11 Added $max_received_linelength.
1141
d52120f2
PH
1142PH/12 Added +ignore_defer and +include_defer to host lists.
1143
64f2600a
PH
1144PH/13 Installed PCRE version 7.2. This needed some changes because of the new
1145 way in which PCRE > 7.0 is built.
1146
8669f003
PH
1147PH/14 Implemented queue_only_load_latch.
1148
a4dc33a8
PH
1149PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
1150 MAIL command. The effect was to mangle the value on 64-bit systems.
1151
d6a60c0f
PH
1152PH/16 Another patch from the Sieve maintainer.
1153
8f128379
PH
1154PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
1155
8932dffe
PH
1156PH/18 If a system quota error occurred while trying to create the file for
1157 a maildir delivery, the message "Mailbox is full" was not appended to the
1158 bounce if the delivery eventually timed out. Change 4.67/27 below applied
1159 only to a quota excession during the actual writing of the file.
d6a60c0f 1160
ddea74fa 1161PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
1162 characters?) which causes problems in log lines. The DN values are now
1163 passed through string_printing() before being added to log lines.
1164
ddea74fa 1165PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
1166 and InterBase are left for another time.)
1167
ddea74fa
PH
1168PH/21 Added message_body_newlines option.
1169
ce9f225c
PH
1170PH/22 Guard against possible overflow in moan_check_errorcopy().
1171
19897d52
PH
1172PH/23 POSIX allows open() to be a macro; guard against that.
1173
bc64a74d
PH
1174PH/24 If the recipient of an error message contained an @ in the local part
1175 (suitably quoted, of course), incorrect values were put in $domain and
1176 $local_part during the evaluation of errors_copy.
1177
eb4c0de6 1178
b4ed4da0
PH
1179Exim version 4.67
1180-----------------
1181
22ad45c9
MH
1182MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
1183 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
1184 Jan Srzednicki.
1185
b4ed4da0
PH
1186PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
1187 issue a MAIL command.
1188
431b7361
PH
1189PH/02 In an ACL statement such as
1190
1191 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
1192
1193 if a client was not listed at all, or was listed with a value other than
1194 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
1195 the condition was not true (as it should be), so access was not denied.
1196 The bug was that the ! inversion was incorrectly passed on to the second
1197 item. This has been fixed.
1198
1199PH/03 Added additional dnslists conditions == and =& which are different from
1200 = and & when the dns lookup returns more than one IP address.
1201
83da1223
PH
1202PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
1203 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
1204
54fc8428
PH
1205PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
1206 FSYNC, which compiles an option called disable_fsync that allows for
1207 bypassing fsync(). The documentation is heavily laced with warnings.
1208
34c5e8dd
SC
1209SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
1210
bbe15da8
PH
1211PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
1212 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
1213 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
1214 including adding "make clean"; (3) Added -fPIC when compiling the test
1215 dynamically loaded module, to get rid of a warning.
1216
0e8a9471
MH
1217MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
1218 message fails, move_frozen_messages = true and ignore_bounce_errors_after
1219 = 0s. The bug is otherwise harmless.
1220
f0872424
PH
1221PH/07 There was a bug in the dovecot authenticator such that the value of
1222 $auth1 could be overwritten, and so not correctly preserved, after a
1223 successful authentication. This usually meant that the value preserved by
1224 the server_setid option was incorrect.
1225
b01dd148
PH
1226PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
1227
6bf342e1
PH
1228PH/09 Installed PCRE release 7.0.
1229
273f34d0
PH
1230PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
1231 run for batched SMTP input. It is now run at the start of every message
1232 in the batch. While fixing this I discovered that the process information
1233 (output by running exiwhat) was not always getting set for -bs and -bS
1234 input. This is fixed, and it now also says "batched" for BSMTP.
1235
cf8b11a5
PH
1236PH/11 Added control=no_pipelining.
1237
41c7c167
PH
1238PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
1239 patch, slightly modified), and move the expansion of helo_data till after
1240 the connection is made in the smtp transport (so it can use these
1241 values).
1242
9c57cbc0
PH
1243PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
1244
f3f065bb
PH
1245PH/14 Added log_selector = +pid.
1246
047bdd8c
PH
1247PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
1248
0ce9abe6
PH
1249PH/16 Add ${if forany and ${if forall.
1250
0e22dfd1
PH
1251PH/17 Added dsn_from option to vary the From: line in DSNs.
1252
4c590bd1
PH
1253PH/18 Flush SMTP output before performing a callout, unless control =
1254 no_callout_flush is set.
1255
09945f1e
PH
1256PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
1257 was true (the default) a successful delivery failed to delete the retry
1258 item, thus causing premature timeout of the address. The bug is now
1259 fixed.
1260
c51b8e75
PH
1261PH/20 Added hosts_avoid_pipelining to the smtp transport.
1262
e28326d8
PH
1263PH/21 Long custom messages for fakedefer and fakereject are now split up
1264 into multiline reponses in the same way that messages for "deny" and
1265 other ACL rejections are.
1266
75b1493f
PH
1267PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
1268 with slight modification.
1269
7c5214ec
PH
1270PH/23 Applied sieve patches from the maintainer "tracking the latest notify
1271 draft, changing the syntax and factoring some duplicate code".
1272
4311097e
PH
1273PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
1274 for deliveries of the second and subsequent messages over the same SMTP
1275 connection.
1276
29f89cad
PH
1277PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
1278 ${reduce, with only minor "tidies".
1279
5e687460
SC
1280SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
1281
c3611384
PH
1282PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
1283 expansion side effects.
1284
5a11a7b4
PH
1285PH/27 When a message times out after an over-quota error from an Exim-imposed
1286 quota, the bounce message says "mailbox is full". This message was not
1287 being given when it was a system quota that was exceeded. It now should
1288 be the same.
1289
0e20aff9
MH
1290MH/03 Made $recipients available in local_scan(). local_scan() already has
1291 better access to the recipient list through recipients_list[], but
1292 $recipients can be useful in postmaster-provided expansion strings.
1293
ca86f471
PH
1294PH/28 The $smtp_command and $smtp_command_argument variables were not correct
1295 in the case of a MAIL command with additional options following the
1296 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
1297 were accidentally chopped off.
1298
a14e5636
PH
1299PH/29 SMTP synchronization checks are implemented when a command is read -
1300 there is a check that no more input is waiting when there shouldn't be
1301 any. However, for some commands, a delay in an ACL can mean that it is
1302 some time before the response is written. In this time, more input might
1303 arrive, invalidly. So now there are extra checks after an ACL has run for
1304 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
1305 pipelining has not been advertised.
1306
ec95d1a6
PH
1307PH/30 MH's patch to allow iscntrl() characters to be list separators.
1308
42855d71
PH
1309PH/31 Unlike :fail:, a custom message specified with :defer: was not being
1310 returned in the SMTP response when smtp_return_error_details was false.
1311 This has been fixed.
1312
57c2c631
PH
1313PH/32 Change the Dovecot authenticator to use read() and write() on the socket
1314 instead of the C I/O that was originally supplied, because problems were
1315 reported on Solaris.
1316
58c01c94
PH
1317PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
1318 Exim which did not show up earlier: it was assuming that a call to
1319 SSL_CTX_set_info_callback() might give an error value. In fact, there is
1320 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
1321 was a macro that became an assignment, so it seemed to work. This has
1322 changed to a proper function call with a void return, hence the compile
1323 error. Exim's code has been fixed.
1324
dee5a20a
PH
1325PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
1326 cpus.
1327
d2ee6114
PH
1328PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
1329
b2d5182b
PH
1330PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
1331
79749a79
PH
1332PH/37 If a message is not accepted after it has had an id assigned (e.g.
1333 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
1334 "Completed" line in the log. When some messages of this type were
1335 selected by exigrep, they were listed as "not completed". Others were
1336 picked up by some special patterns. I have improved the selection
1337 criteria to be more general.
79749a79 1338
c456d9bb
PH
1339PH/38 The host_find_failed option in the manualroute router can now be set
1340 to "ignore", to completely ignore a host whose IP address cannot be
1341 found. If all hosts are ignored, the behaviour is controlled by the new
1342 host_all_ignored option.
1343
cd9868ec
PH
1344PH/39 In a list of hosts for manualroute, if one item (either because of multi-
1345 homing or because of multiple MX records with /mx) generated more than
1346 one IP address, and the following item turned out to be the local host,
1347 all the secondary addresses of the first item were incorrectly removed
1348 from the list, along with the local host and any following hosts (which
1349 is what is supposed to happen).
1350
ebeaf996
PH
1351PH/40 When Exim receives a message, it writes the login name, uid, and gid of
1352 whoever called Exim into the -H file. In the case of the daemon it was
1353 behaving confusingly. When first started, it used values for whoever
1354 started the daemon, but after a SIGHUP it used the Exim user (because it
1355 calls itself on a restart). I have changed the code so that it now always
1356 uses the Exim user.
1357
2679d413
PH
1358PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
1359 message are rejected with the same error (e.g. no authentication or bad
1360 sender address), and a DATA command is nevertheless sent (as can happen
1361 with PIPELINING or a stupid MUA), the error message that was given to the
1362 RCPT commands is included in the rejection of the DATA command. This is
1363 intended to be helpful for MUAs that show only the final error to their
1364 users.
1365
84024b72
PH
1366PH/42 Another patch from the Sieve maintainer.
1367
8005d38e
SC
1368SC/02 Eximstats - Differentiate between permanent and temporary rejects.
1369 Eximstats - Fixed some broken HTML links and added missing column headers
1370 (Jez Hancock).
1371 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
1372 columns for Rejects, Temp Rejects, Ham, and Spam rows.
1373
3298c6c6
SC
1374SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
1375
a43a27c5
PH
1376PH/43 Yet another patch from the Sieve maintainer.
1377
58eb016e 1378PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
1379 the response to the final '.' that terminates a message, but only in the
1380 case where the client has not sent further data following the '.'
1381 (unfortunately, this is allowed). However, in many cases there won't be
1382 any further data because there won't be any more messages to send. A call
1383 to select() can be used: if it shows that the input is "ready", there is
1384 either input waiting, or the socket has been closed. An attempt to read
1385 the next input character can distinguish the two cases. Previously, Exim
58eb016e 1386 would have sent an OK response which the client would never have see.
563b63fa
PH
1387 This could lead to message repetition. This fix should cure that, at
1388 least in a lot of common cases.
58eb016e 1389
b43a74ea
PH
1390PH/45 Do not advertise STARTTLS in response to HELP unless it would be
1391 advertised in response to EHLO.
1392
b4ed4da0 1393
5dd1517f
PH
1394Exim version 4.66
1395-----------------
1396
1397PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
1398 fixed by 4.65/MH/01 (is this a record?) are fixed:
1399
1400 (i) An empty string was always treated as zero by the numeric comparison
1401 operators. This behaviour has been restored.
1402
1403 (ii) It is documented that the numeric comparison operators always treat
1404 their arguments as decimal numbers. This was broken in that numbers
1405 starting with 0 were being interpreted as octal.
1406
1407 While fixing these problems I realized that there was another issue that
1408 hadn't been noticed. Values of message_size_limit (both the global option
1409 and the transport option) were treated as octal if they started with 0.
1410 The documentation was vague. These values are now always treated as
1411 decimal, and I will make that clear in the documentation.
1412
1413
93cfa765
TK
1414Exim version 4.65
1415-----------------
1416
1417TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
1418 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
1419 versions. (#438)
1420
d6066548
MH
1421MH/01 Don't check that the operands of numeric comparison operators are
1422 integers when their expansion is in "skipping" mode (fixes bug
1423 introduced by 4.64-PH/07).
1424
4362ff0d
PH
1425PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
1426 child addresses, Exim now panics and dies. Previously, because the count
1427 is held in a short int, deliveries were likely to be lost. As such a
1428 large number of recipients for a single message is ridiculous
1429 (performance will be very, very poor), I have chosen to impose a limit
1430 rather than extend the field.
1431
93cfa765 1432
944e9e9c
TF
1433Exim version 4.64
1434-----------------
aa41d2de 1435
21d74bd9
TK
1436TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
1437 leftover -K file (the existence of which was triggered by #402).
1438 While we were at it, introduced process PID as part of the -K
1439 filename. This should rule out race conditions when creating
1440 these files.
1441
1442TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
1443 processing considerably. Previous code took too long for large mails,
1444 triggering a timeout which in turn triggers #401.
1445
1446TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
1447 in the DK code in transports.c. sendfile() is not really portable,
1448 hence the _LINUX specificness.
944e9e9c
TF
1449
1450TF/01 In the add_headers option to the mail command in an Exim filter,
1451 there was a bug that Exim would claim a syntax error in any
1452 header after the first one which had an odd number of characters
1453 in the field name.
1454
2b1c6e3a
PH
1455PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
1456 callout verification, Exim cached a "reject" for the entire domain. This
1457 is correct for most verifications, but it is not correct for a recipient
1458 verification with use_sender or use_postmaster set, because in that case
1459 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
1460 case of MAIL FROM:<> rejection from other early rejections (e.g.
1461 rejection of HELO). When verifying a recipient using a non-null MAIL
1462 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1463 Whatever the result of the callout, the value of the domain cache is
1464 left unchanged (for any other kind of callout, getting as far as trying
1465 RCPT means that the domain itself is ok).
1466
1f872c80
PH
1467PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1468 gcc 4.1.1 threw up.
1469
1470PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1471 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1472 session, the daemon ignores ECONNECT errors and logs others; it now
1473 ignores EPIPE as well.
1474
d203e649
PH
1475PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1476 (quoted-printable decoding).
1477
cc2ed8f7 1478PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1479 later the small subsequent patch to fix an introduced bug.
f951fd57 1480
ddfcd446
PH
1481PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1482
d45b1de8
PH
1483PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1484
1485PH/08 An error is now given if message_size_limit is specified negative.
1486
38a0a95f 1487PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1488 to be given (somewhat) arbitrary names.
38a0a95f 1489
a2405d83
JJ
1490JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1491 in 4.64-PH/09.
1492
1493JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1494 miscellaneous code fixes
1495
6ea85e9a
PH
1496PH/10 Added the log_reject_target ACL modifier to specify where to log
1497 rejections.
1498
26da7e20
PH
1499PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1500 hostname. This is wrong, because it relates to the incoming message (and
1501 probably the interface on which it is arriving) and not to the outgoing
1502 callout (which could be using a different interface). This has been
1503 changed to use the value of the helo_data option from the smtp transport
1504 instead - this is what is used when a message is actually being sent. If
1505 there is no remote transport (possible with a router that sets up host
1506 addresses), $smtp_active_hostname is used.
6ea85e9a 1507
14aa5a05 1508PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1509 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1510 (a) The code assumed that strncpy() returns a negative number on buffer
1511 overflow, which isn't the case. Replaced with Exim's string_format()
1512 function.
1513 (b) There were several signed/unsigned issues. I just did the minimum
1514 hacking in of casts. There is scope for a larger refactoring.
1515 (c) The code used strcasecmp() which is not a standard C function.
1516 Replaced with Exim's strcmpic() function.
1517 (d) The code set only $1; it now sets $auth1 as well.
1518 (e) A simple test gave the error "authentication client didn't specify
1519 service in request". It would seem that Dovecot has changed its
1520 interface. Fortunately there's a specification; I followed it and
1521 changed what the client sends and it appears to be working now.
1522
ff75a1f7
PH
1523PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1524 decoding.
1525
e6f6568e
PH
1526PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1527 address A is aliased to B and C, where B exists and C does not. Without
1528 -v the output is "A verified" because verification stops after a
1529 successful redirection if more than one address is generated. However,
1530 with -v the child addresses are also verified. Exim was outputting "A
1531 failed to verify" and then showing the successful verification for C,
1532 with its parentage. It now outputs "B failed to verify", showing B's
1533 parentage before showing the successful verification of C.
1534
d6f6e0dc
PH
1535PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1536 look up a TXT record in a specific list after matching in a combined
1537 list.
1538
322050c2
PH
1539PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1540 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1541 they consult the DNS. I had assumed they would set it the way they
1542 wanted; and indeed my experiments on Linux seem to show that in some
1543 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1544 To be on the safe side, however, I have now made the interface to
1545 host_find_byname() similar to host_find_bydns(), with an argument
1546 containing the DNS resolver options. The host_find_byname() function now
1547 sets these options at its start, just as host_find_bydns() does. The smtp
1548 transport options dns_qualify_single and dns_search_parents are passed to
1549 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1550 of host_find_byname() use the default settings of RES_DEFNAMES
1551 (qualify_single) but not RES_DNSRCH (search_parents).
1552
08955dd3
PH
1553PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1554 spool_read_header() do less string testing, by means of a preliminary
1555 switch on the second character of optional "-foo" lines. (This is
1556 overdue, caused by the large number of possibilities that now exist.
1557 Originally there were few.) While I was there, I also converted the
1558 str(n)cmp tests so they don't re-test the leading "-" and the first
1559 character, in the hope this might squeeze out yet more improvement.
1560
1eccaa59
PH
1561PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1562 flag allowing group syntax was set by the header_syntax check but not
1563 turned off, possible causing trouble later; (2) The flag was not being
1564 set at all for the header_verify test, causing "group"-style headers to
1565 be rejected. I have now set it in this case, and also caused header_
1566 verify to ignore an empty address taken from a group. While doing this, I
1567 came across some other cases where the code for allowing group syntax
1568 while scanning a header line wasn't quite right (mostly, not resetting
1569 the flag correctly in the right place). These bugs could have caused
1570 trouble for malformed header lines. I hope it is now all correct.
1571
602e59e5
PH
1572PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1573 with the "reply" argument non-NULL. The code, however (which originally
1574 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1575 but it didn't always do it. This confused somebody who was copying the
1576 code for some other use. I have removed all the tests.
1577
411ef850
PH
1578PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1579 feature that was used to support insecure browsers during the U.S. crypto
1580 embargo. It requires special client support, and Exim is probably the
1581 only MTA that supported it -- and would never use it because real RSA is
1582 always available. This code has been removed, because it had the bad
1583 effect of slowing Exim down by computing (never used) parameters for the
1584 RSA_EXPORT functionality.
1585
7befa435
PH
1586PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1587 authenticator to fail if there's a tab character in the incoming data
1588 (there should never be unless someone is messing about, as it's supposed
1589 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1590 if the connection is using TLS or if the remote IP is the same as the
1591 local IP, and the "valid-client-cert option" if a client certificate has
1592 been verified.
1593
48da4259 1594PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1595 authenticators. This can be used for authorization after authentication
1596 succeeds. (In the case of plaintext, it servers for both authentication
1597 and authorization.)
1598
48da4259
PH
1599PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1600 if any retry times were supplied.
1601
d1d5595c
PH
1602PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1603 connection, where there is no client IP address to check. In this
1604 situation, the verify now always succeeds.
1605
0ef732d9
PH
1606PH/25 Applied John Jetmore's -Mset patch.
1607
328895cc
PH
1608PH/26 Added -bem to be like -Mset, but loading a message from a file.
1609
fd700877
PH
1610PH/27 In a string expansion for a processed (not raw) header when multiple
1611 headers of the same name were present, leading whitespace was being
1612 removed from all of them, but trailing whitespace was being removed only
1613 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1614 before concatenation. Completely empty headers in a concatenation (as
1615 before) are ignored.
fd700877 1616
8dce1a6f
PH
1617PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1618 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1619
17af4a17
PH
1620PH/29 [Removed. This was a change that I later backed out, and forgot to
1621 correct the ChangeLog entry (that I had efficiently created) before
1622 committing the later change.]
f6c332bd
PH
1623
1624PH/30 Exim was sometimes attempting to deliver messages that had suffered
1625 address errors (4xx response to RCPT) over the same connection as other
1626 messages routed to the same hosts. Such deliveries are always "forced",
1627 so retry times are not inspected. This resulted in far too many retries
1628 for the affected addresses. The effect occurred only when there were more
1629 hosts than the hosts_max_try setting in the smtp transport when it had
1630 the 4xx errors. Those hosts that it had tried were not added to the list
1631 of hosts for which the message was waiting, so if all were tried, there
1632 was no problem. Two fixes have been applied:
1633
1634 (i) If there are any address or message errors in an SMTP delivery, none
1635 of the hosts (tried or untried) are now added to the list of hosts
1636 for which the message is waiting, so the message should not be a
1637 candidate for sending over the same connection that was used for a
1638 successful delivery of some other message. This seems entirely
1639 reasonable: after all the message is NOT "waiting for some host".
1640 This is so "obvious" that I'm not sure why it wasn't done
1641 previously. Hope I haven't missed anything, but it can't do any
1642 harm, as the worst effect is to miss an optimization.
1643
1644 (ii) If, despite (i), such a delivery is accidentally attempted, the
1645 routing retry time is respected, so at least it doesn't keep
1646 hammering the server.
1647
c1114884
PH
1648PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1649 in ${readsocket because some servers need this prod.
1650
7a0743eb
PH
1651PH/32 Added some extra debug output when updating a wait-xxx database.
1652
0d85fa3f
PH
1653PH/33 The hint "could be header name not terminated by colon", which has been
1654 given for certain expansion errors for a long time, was not being given
1655 for the ${if def:h_colon_omitted{... case.
1656
1bf43b78
PH
1657PH/34 The spec says: "With one important exception, whenever a domain list is
1658 being scanned, $domain contains the subject domain." There was at least
1659 one case where this was not true.
1660
520de300
PH
1661PH/35 The error "getsockname() failed: connection reset by peer" was being
1662 written to the panic log as well as the main log, but it isn't really
1663 panic-worthy as it just means the connection died rather early on. I have
1664 removed the panic log writing for the ECONNRESET error when getsockname()
1665 fails.
1666
48c7f9e2
PH
1667PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1668 runs only) independently of the message's sender address. This meant
1669 that, if the 4xx error was in fact related to the sender, a different
1670 message to the same recipient with a different sender could confuse
1671 things. In particualar, this can happen when sending to a greylisting
1672 server, but other circumstances could also provoke similar problems.
1673 I have changed the default so that the retry time for these errors is now
1674 based a combination of the sender and recipient addresses. This change
1675 can be overridden by setting address_retry_include_sender=false in the
1676 smtp transport.
1677
99ea1c86
PH
1678PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1679 remote server are returned as part of bounce messages. This was not
1680 happening for LMTP over a pipe (the lmtp transport), but now it is the
1681 same for both kinds of LMTP.
1682
a2042e78
PH
1683PH/38 Despite being documented as not happening, Exim was rewriting addresses
1684 in header lines that were in fact CNAMEs. This is no longer the case.
1685
4fbcfc2e
PH
1686PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1687 and queue runs started by the daemon processed all messages. This has
1688 been fixed so that -R and -S can now usefully be given with -q<time>.
1689
aa41d2de
PH
1690PH/40 Import PCRE release 6.7 (fixes some bugs).
1691
af561417
PH
1692PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1693
3cc66b45
PH
1694PH/42 Give an error if -q is specified more than once.
1695
194cc0e4
PH
1696PH/43 Renamed the variables $interface_address and $interface_port as
1697 $received_ip_address and $received_port, to make it clear that these
1698 values apply to message reception, and not to the outgoing interface when
1699 a message is delivered. (The old names remain recognized, of course.)
1700
a401ddaa
PH
1701PH/44 There was no timeout on the connect() call when using a Unix domain
1702 socket in the ${readsocket expansion. There now is.
1703
4e88a19f
PH
1704PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1705 be meaningful with "accept".
1706
d7d7b289
SC
1707SC/01 Eximstats V1.43
1708 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1709
1710SC/02 Eximstats V1.44
1711 Use a glob alias rather than an array ref in the generated
1712 parser. This improves both readability and performance.
1713
1714SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1715 Collect SpamAssassin and rejection statistics.
1716 Don't display local sender or destination tables unless
1717 there is data to show.
1718 Added average volumes into the top table text output.
1719
1720SC/04 Eximstats V1.46
1721 Collect data on the number of addresses (recipients)
1722 as well as the number of messages.
1723
1724SC/05 Eximstats V1.47
1725 Added 'Message too big' to the list of mail rejection
1726 reasons (thanks to Marco Gaiarin).
1727
1728SC/06 Eximstats V1.48
1729 Mainlog lines which have GMT offsets and are too short to
1730 have a flag are now skipped.
1731
1732SC/07 Eximstats V1.49 (Alain Williams)
1733 Added the -emptyok flag.
1734
1735SC/08 Eximstats V1.50
1736 Fixes for obtaining the IP address from reject messages.
1737
0ea2a468
JJ
1738JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1739 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1740 whitesspace changes from 4.64-PH/27
1741
1742JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1743 match 4.64-PH/13
1744
1745JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1746 are found, allow negative numbers in numeric criteria)
1747
1748JJ/06 exipick.20061117.2, added new $message_body_missing variable
1749
1750JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1751 to match changes made in 4.64-PH/43
1752
8a10f5a4
PH
1753PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1754
30e18802
PH
1755PH/47 Put in an explicit test for a DNS lookup of an address record where the
1756 "domain" is actually an IP address, and force a failure. This locks out
1757 those revolvers/nameservers that support "A-for-A" lookups, in
1758 contravention of the specifications.
1759
55728a4f
PH
1760PH/48 When a host name was looked up from an IP address, and the subsequent
1761 forward lookup of the name timed out, the host name was left in
1762 $sender_host_name, contrary to the specification.
d7d7b289 1763
d7837193
PH
1764PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1765 restricted to single-key lookups, Exim was not diagnosing an error if
1766 * or *@ was used with a query-style lookup.
1767
87054a31
PH
1768PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1769
ea2c01d2
MH
1770MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1771 long ago, but noone interested enough thought of it. Let's just say that
1772 the "1.1" means that there are some new functions that weren't there at
1773 some point in the past.
1774
e4fa6968
PH
1775PH/51 Error processing for expansion failure of helo_data from an smtp
1776 transport during callout processing was broken.
1777
56f5d9bd
PH
1778PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1779 tested/used via the -bh/-bhc/-bs options.
1780
922e1c28
PH
1781PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1782 bug, fixed in subsequent PCRE releases).
1783
21eb6e72
PH
1784PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1785 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1786
a0540757
PH
1787PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1788
944e9e9c 1789
478be7b0
SC
1790Exim version 4.63
1791-----------------
1792
1793SC/01 Use a glob alias rather than an array ref in eximstats generated
1794 parser. This improves both readability and performance.
1795
1796SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1797 Don't display local sender or destination tables in eximstats unless
1798 there is data to show.
1799 Added average volumes into the eximstats top table text output.
1800
1801SC/03 Collect data on the number of addresses (recipients) as well
1802 as the number of messages in eximstats.
1803
2b965a65
TF
1804TF/01 Correct an error in the documentation for the redirect router. Exim
1805 does (usually) call initgroups() when daemonizing.
478be7b0 1806
45b91596
PH
1807TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1808 with consistent privilege compared to when running as a daemon.
478be7b0 1809
c59f5781
TF
1810TF/03 Note in the spec that $authenticated_id is not set for local
1811 submissions from trusted users.
1812
90fc3069
TF
1813TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1814 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1815
6083aca0
TF
1816TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1817 by adding some example configuration directives to the default
1818 configuration file. A little bit of work is required to uncomment the
1819 directives and define how usernames and passwords are checked, but
1820 there is now a framework to start from.
1821
765b530f
PH
1822PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1823 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1824 without this. I don't know how relevant this is to other LDAP libraries.
1825
4e167a8c
PH
1826PH/02 Add the verb name to the "unknown ACL verb" error.
1827
4608d683
PH
1828PH/03 Magnus Holmgren's patch for filter_prepend_home.
1829
b8dc3e4a
PH
1830PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1831
5418e93b
PH
1832PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1833 directory not expanded when it should be if an expanded home directory
1834 was set for the address (which is overridden by the transport).
1835
b4a9bda2
PH
1836PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1837 libradius.
1838
45b91596
PH
1839PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1840 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1841 because it is too late at that time, and has no effect.
1842
5547e2c5
PH
1843PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1844 security issue with \' (bugzilla #107). I could not use the
1845 PQescapeStringConn() function, because it needs a PGconn value as one of
1846 its arguments.
1847
dbcef0ea
PH
1848PH/08 When testing addresses using -bt, indicate those final addresses that
1849 are duplicates that would not cause an additional delivery. At least one
1850 person was confused, thinking that -bt output corresponded to deliveries.
1851 (Suppressing duplicates isn't a good idea as you lose the information
1852 about possibly different redirections that led to the duplicates.)
1853
25257489
PH
1854PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1855 systems where poll() doesn't work, in particular OS X.
1856
c816d124
PH
1857PH/10 Added more information to debugging output for retry time not reached.
1858
a9ccd69a
PH
1859PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1860 operations in malware.c.
1861
75fa1910
PH
1862PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1863 signatures.
1864
a7d7aa58
PH
1865PH/13 If write_rejectlog was set false when logging was sent to syslog with
1866 syslog_duplication set false, log lines that would normally be written
1867 both the the main log and to the reject log were not written to syslog at
1868 all.
1869
42119b09
PH
1870PH/14 In the default configuration, change the use of "message" in ACL warn
1871 statements to "add_header".
1872
41609df5
PH
1873PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1874 not followed by a command (e.g. "seen endif").
1875
a5bd321b
PH
1876PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1877 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1878 latter.
1879
e85a7ad5 1880PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1881 so that it is now:
1882
e85a7ad5
PH
1883 ${if or { \
1884 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1885 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1886 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1887 }{no}{yes}}
1888
e85a7ad5
PH
1889 The Auto-Submitted: and various List- headers are standardised, whereas I
1890 don't think Precedence: ever was.
5dff5817 1891
d8fe1c03
PH
1892PH/18 Refactored debugging code in route_finduser() to show more information,
1893 in particular, the error code if getpwnam() issues one.
1894
16282d2b
PH
1895PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1896 This is apparently needed in addition to the PH/07 change above to avoid
1897 any possible encoding problems.
1898
35d40a98
PH
1899PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1900 but not after initializing Perl.
1901
034d99ab
PH
1902PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1903 output them only if debugging. By default they are written stderr,
1904 apparently, which is not desirable.
1905
6ec97b1b
PH
1906PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1907 queries.
1908
e22ca4ac
JJ
1909JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1910 --not options
1911
1912JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1913
33d73e3b
PH
1914PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1915 authenticated or an ident call has been made. Suppress the default
1916 values for $authenticated_id and $authenticated_sender (but permit -oMai
1917 and -oMas) when testing with -bh.
1918
9ecb03f3
PH
1919PH/24 Re-jigged the order of the tests in the default configuration so that the
1920 tests for valid domains and recipients precede the DNS black list and CSA
1921 tests, on the grounds that those ones are more expensive.
1922
084efe8d
PH
1923PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1924 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1925 This bug exists in every version of Exim that I still have, right back to
1926 0.12.
1927
366fc9f0
PH
1928PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1929 However, an attempt to turn on case-sensitivity in a regex key by
1930 including (?-i) didn't work because the subject string was already
1931 lowercased, and the effects were non-intuitive. It turns out that a
1932 one-line patch can be used to allow (?-i) to work as expected.
1933
c59f5781 1934
c887c79e
TF
1935Exim version 4.62
1936-----------------
1937
1938TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1939 other effects) broke the use of negated acl sub-conditions.
1940
1cce3af8
PH
1941PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1942 patch).
1943
afb3eaaf
PH
1944PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1945 "Deny" causes Exim to reject the incoming connection with a 554 error.
1946 Unfortunately, if there is a major crisis, such as a disk failure,
1947 tcp-wrappers gives "deny", whereas what one would like would be some
1948 kind of temporary error. A kludge has been added to help with this.
1949 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1950 554 error is used if errno is still zero or contains ENOENT (which occurs
1951 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1952 451 error is used.
1953
e173618b
PH
1954PH/03 Add -lutil to the default FreeBSD LIBS setting.
1955
dd16e114
PH
1956PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1957 errors. Otherwise a message that provokes a temporary error (when other
1958 messages do not) can cause a whole host to time out.
1959
f7fd3850
PH
1960PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1961 addresses were routed directly to files or pipes from a redirect router.
1962 File deliveries just didn't batch; pipe deliveries might have suffered
1963 odd errors.
1964
d87df92c
PH
1965PH/06 A failure to get a lock for a hints database would erroneously always say
1966 "Failed to get write lock", even when it was really a read lock.
1967
7e9f683d
PH
1968PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1969 of 0600. This has been changed to use the value of the lockfile_mode
1970 option (which defaults to 0600).
1971
bfad5236
PH
1972PH/08 Applied small patch from the Sieve maintainer.
1973
01c490df
PH
1974PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1975 folder from quota calculations, a direct delivery into this folder messed
1976 up the contents of the maildirsize file. This was because the regex was
1977 used only to exclude .Trash (or whatever) when the size of the mailbox
1978 was calculated. There was no check that a delivery was happening into an
1979 excluded directory. This bug has been fixed by ignoring all quota
1980 processing for deliveries into excluded directories.
1981
d6629cdc
PH
1982PH/10 Added the maildirfolder_create_regex option to appendfile.
1983
1cce3af8 1984
214e2000
PH
1985Exim version 4.61
1986-----------------
1987
1988PH/01 The code for finding all the local interface addresses on a FreeBSD
1989 system running IPv6 was broken. This may well have applied to all BSD
1990 systems, as well as to others that have similar system calls. The broken
1991 code found IPv4 interfaces correctly, but gave incorrect values for the
1992 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1993 that it would not match correctly against @[] and not recognize the IPv6
1994 addresses as local.
1995
f9daeae0
PH
1996PH/02 The ipliteral router was not recognizing addresses of the form user@
1997 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1998
7e66e54d
PH
1999PH/03 Added disable_ipv6.
2000
c8ea1597
PH
2001PH/04 Changed $reply_address to use the raw form of the headers instead of the
2002 decoded form, because it is most often used to construct To: headers
2003 lines in autoreplies, and the decoded form may well be syntactically
2004 invalid. However, $reply_address has leading white space removed, and all
2005 newlines turned into spaces so that the autoreply transport does not
2006 grumble.
2007
911f6fde
PH
2008PH/05 If group was specified without a user on a router, and no group or user
2009 was specified on a transport, the group from the router was ignored.
2010
47ca6d6c
PH
2011PH/06 Increased the number of ACL variables to 20 of each type, and arranged
2012 for visible compile-time settings that can be used to change these
2013 numbers, for those that want even more. Backwards compatibility with old
2014 spool files has been maintained. However, going back to a previous Exim
2015 release will lost any variables that are in spool files.
2016
ed0e9820
PH
2017PH/07 Two small changes when running in the test harness: increase delay when
2018 passing a TCP/IP connection to a new process, in case the original
2019 process has to generate a bounce, and remove special handling of
2020 127.0.0.2 (sic), which is no longer necessary.
2021
eff37e47
PH
2022PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
2023 be the same on different OS.
2024
1921d2ea
PH
2025PH/09 Moved a debug statement in filter processing to avoid a race problem when
2026 testing.
2027
b3f69ca8
JJ
2028JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
2029 whether --show-vars was specified or not
2030
2031JJ/02 exipick: Added support for new ACL variable spool format introduced
2032 in 4.61-PH/06
2033
424a1c63
PH
2034PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
2035 syntactically invalid From: or Reply-to: line, and a filter used this to
2036 generate an autoreply, and therefore failed to obtain an address for the
2037 autoreply, Exim could try to deliver to a non-existent relative file
2038 name, causing unrelated and misleading errors. What now happens is that
2039 it logs this as a hard delivery error, but does not attempt to create a
2040 bounce message.
2041
7a100415
PH
2042PH/11 The exinext utility has a -C option for testing purposes, but although
2043 the given file was scanned by exinext itself; it wasn't being passed on
2044 when Exim was called.
2045
19b9dc85
PH
2046PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
2047 an end-of-file indication when reading a command response.
2048
309bd837
PH
2049PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
2050 compiled. In many other places in Exim, IPv6 addresses are always
2051 recognized, so I have changed this. It also means that IPv4 domain
2052 literals of the form [IPV4:n.n.n.n] are now always recognized.
2053
59e82a2a
PH
2054PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
2055 used if the router is not running as root, for example, when verifying at
2056 ACL time, or when using -bh. The debugging output from this situation was
2057 non-existent - all you got was a failure to exec. I have made two
2058 changes:
2059
2060 (a) Failures to set uid/gid, the current directory, or a process leader
2061 in a subprocess such as that created by queryprogram now generate
2062 suitable debugging ouput when -d is set.
2063
2064 (b) The queryprogram router detects when it is not running as root,
2065 outputs suitable debugging information if -d is set, and then runs
2066 the subprocess without attempting to change uid/gid.
2067
9edc04ce
PH
2068PH/15 Minor change to Makefile for building test_host (undocumented testing
2069 feature).
2070
1349e1e5
PH
2071PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
2072 additional section of a DNS packet that returns MX or SRV records.
2073 Instead, it always explicitly searches for A/AAAA records. This avoids
2074 major problems that occur when a DNS server includes only records of one
2075 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
2076 fixed another bug: if SRV records were looked up and the corresponding
2077 address records were *not* found in the additional section, the port
2078 values from the SRV records were lost.
2079
ea49d0e1
PH
2080PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
2081 using the correct key (the original address) when searching the retry
2082 rules in order to find which one to use for generating the retry hint.
2083
064a94c9
PH
2084PH/18 If quota_warn_message contains a From: header, Exim now refrains from
2085 adding the default one. Similarly, if it contains a Reply-To: header, the
2086 errors_reply_to option, if set, is not used.
2087
727071f8
PH
2088PH/19 When calculating a retry time, Exim used to measure the "time since
2089 failure" by looking at the "first failed" field in the retry record. Now
2090 it does not use this if it is later than than the arrival time of the
2091 message. Instead it uses the arrival time. This makes for better
2092 behaviour in cases where some deliveries succeed, thus re-setting the
2093 "first failed" field. An example is a quota failure for a huge message
2094 when small messages continue to be delivered. Without this change, the
2095 "time since failure" will always be short, possible causing more frequent
2096 delivery attempts for the huge message than are intended.
dd16e114 2097 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 2098
f78eb7c6
PH
2099PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
2100 $1, $2, $3) because the numerical variables can be reset during some
2101 expansion items (e.g. "match"), thereby losing the authentication data.
2102
21c28500
PH
2103PH/21 Make -bV show the size of off_t variables so that the test suite can
2104 decide whether to run tests for quotas > 2G.
2105
2106PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
2107 mailbox_size, and mailbox_filecount in the appendfile transport. If a
2108 filecount value is greater than 2G or if a quota value is greater than 2G
2109 on a system where the size of off_t is not greater than 4, a panic error
2110 is given.
2111
1688f43b
PH
2112PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
2113 never match. The debug and -bh output now contains an explicit error
2114 message indicating a malformed IPv4 address or mask.
2115
2116PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
2117 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
2118 PH/23 above applies.
2119
9675b384
PH
2120PH/25 Do not write to syslog when running in the test harness. The only
2121 occasion when this arises is a failure to open the main or panic logs
2122 (for which there is an explicit test).
2123
6a3f1455
PH
2124PH/26 Added the /no_tell option to "control=freeze".
2125
dac79d3e
PH
2126PH/27 If a host name lookup failed very early in a connection, for example, if
2127 the IP address matched host_lookup and the reverse lookup yielded a name
2128 that did not have a forward lookup, an error message of the form "no IP
2129 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
2130 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 2131
5977a0b3
PH
2132PH/28 An enabling patch from MH: add new function child_open_exim2() which
2133 allows the sender and the authenticated sender to be set when
2134 submitting a message from within Exim. Since child_open_exim() is
2135 documented for local_scan(), the new function should be too.
2136
c91535f3
PH
2137PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
2138 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
2139 results in an empty string is now treated as unset.
2140
0d46a8c8
PH
2141PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
2142
278c6e6c
PH
2143PH/31 Added sender_verify_fail logging option.
2144
2cbb4081
PH
2145PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
2146 needed by RFC 822 but not by RFC 2822 was commented out. I have now
2147 tidied the source and removed it altogether.
2148
3eef829e
PH
2149PH/33 When a queue run was abandoned because the load average was too high, a
2150 log line was always written; now it is written only if the queue_run log
2151 selector is set. In addition, the log line for abandonment now contains
2152 information about the queue run such as the pid. This is always present
2153 in "start" and "stop" lines but was omitted from the "abandon" line.
2154
1ab95fa6
PH
2155PH/34 Omit spaces between a header name and the colon in the error message that
2156 is given when verify = headers_syntax fails (if there are lots of them,
2157 the message gets confusing).
2158
230205fc
PH
2159PH/35 Change the default for dns_check_names_pattern to allow slashes within
2160 names, as there are now some PTR records that contain slashes. This check
2161 is only to protect against broken name servers that fall over on strange
2162 characters, so the fact that it applies to all lookups doesn't matter.
2163
75e0e026
PH
2164PH/36 Now that the new test suite is complete, we can remove some of the
2165 special code in Exim that was needed for the old test suite. For example,
2166 sorting DNS records because real resolvers return them in an arbitrary
2167 order. The new test suite's fake resolver always returns records in the
2168 same order.
2169
2170PH/37 When running in the test harness, use -odi for submitted messages (e.g.
2171 bounces) except when queue_only is set, to avoid logging races between
2172 the different processes.
2173
145396a6
PH
2174PH/38 Panic-die if .include specifies a non-absolute path.
2175
3cd34f13
PH
2176PH/39 A tweak to the "H" retry rule from its user.
2177
11121d3d
JJ
2178JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
2179 a label. They prevented compilation on older perls.
2180
2181JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
2182 a warning to be raised on newish perls.
2183
2184JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
2185 on queue. Changes to match documented behaviour of showing count of
2186 messages matching specified criteria.
2187
8def5aaf
PH
2188PH/40 Changed the default ident timeout from 30s to 5s.
2189
929ba01c
PH
2190PH/41 Added support for the use of login_cap features, on those BSD systems
2191 that have them, for controlling the resources used by pipe deliveries.
2192
2632889e
PH
2193PH/42 The content-scanning code uses fopen() to create files in which to put
2194 message data. Previously it was not paying any attention to the mode of
2195 the files. Exim runs with umask(0) because the rest of the code creates
2196 files with open(), and sets the required mode explicitly. Thus, these
2197 files were ending up world-writeable. This was not a big issue, because,
2198 being within the spool directory, they were not world-accessible. I have
2199 created a function called modefopen, which takes an additional mode
2200 argument. It sets umask(777), creates the file, chmods it to the required
2201 mode, then resets the umask. All the relevant calls to fopen() in the
2202 content scanning code have been changed to use this function.
2203
944a9c55
PH
2204PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
2205 to 24 hours. This avoids potential overflow problems when processing G
2206 and H retry rules. I suspect nobody ever tinkers with this value.
2207
4a23603b
PH
2208PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
2209
4730f942
PH
2210PH/45 When the plaintext authenticator is running as a client, the server's
2211 challenges are checked to ensure they are valid base64 strings. By
2212 default, the authentication attempt is cancelled if an invalid string is
2213 received. Setting client_ignore_invalid_base64 true ignores these errors.
2214 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
2215 they are received. Thus, the responses can be made to depend on the
2216 challenges. If an invalid string is ignored, an empty string is placed in
2217 the variable.
2218
30dba1e6
PH
2219PH/46 Messages that are created by the autoreply transport now contains a
2220 References: header, in accordance with RFCs 2822 and 3834.
2221
382afc6b
PH
2222PH/47 Added authenticated_sender_force to the smtp transport.
2223
a86229cf
PH
2224PH/48 The ${prvs expansion was broken on systems where time_t was long long.
2225
50c99ba6
PH
2226PH/49 Installed latest patch from the Sieve maintainer.
2227
d35e429d
PH
2228PH/50 When an Exim quota was set without a file count quota, and mailbox_size
2229 was also set, the appendfile transport was unnecessarily scanning a
2230 directory of message files (e.g. for maildir delivery) to find the count
2231 of files (along with the size), even though it did not need this
2232 information. It now does the scan only if it needs to find either the
2233 size of the count of files.
2234
f90d018c
PH
2235PH/51 Added ${time_eval: to convert Exim time strings into seconds.
2236
75def545
PH
2237PH/52 Two bugs concerned with error handling when the smtp transport is
2238 used in LMTP mode:
2239
2240 (i) Exim was not creating retry information for temporary errors given
2241 for individual recipients after the DATA command when the smtp transport
2242 was used in LMTP mode. This meant that they could be retried too
2243 frequently, and not timed out correctly.
2244
2245 (ii) Exim was setting the flag that allows error details to be returned
2246 for LMTP errors on RCPT commands, but not for LMTP errors for individual
2247 recipients that were returned after the DATA command.
2248
2249PH/53 This is related to PH/52, but is more general: for any failing address,
2250 when detailed error information was permitted to be returned to the
2251 sender, but the error was temporary, then after the final timeout, only
2252 "retry timeout exceeded" was returned. Now it returns the full error as
2253 well as "retry timeout exceeded".
2254
c46782ef
PH
2255PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
2256 do this, and (what is worse) MTAs that accept it.
2257
71fafd95
PH
2258PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
2259 will now be deprecated.
2260
2c5db4fd
PH
2261PH/56 New os.c-cygwin from the Cygwin maintainer.
2262
9cf6b11a
JJ
2263JJ/06 exipick: added --unsorted option to allow unsorted output in all output
2264 formats (previously only available in exim formats via -bpr, -bpru,
2265 and -bpra. Now also available in native and exiqgrep formats)
2266
2267JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
2268 with very large, slow to parse queues
2269
2270JJ/08 exipick: added ! as generic prefix to negate any criteria format
2271
2272JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
2273
898d150f
PH
2274PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
2275 responses to authentication challenges, though it was showing the
2276 challenges; (ii) I've removed the CR characters from the debug output for
2277 SMTP output lines.
2278
46218253
PH
2279PH/58 Allow for the insertion of a newline as well as a space when a string
2280 is turned into more than one encoded-word during RFC 2047 encoding. The
2281 Sieve code now uses this.
2282
e97957bc
PH
2283PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
2284 data_4xx, lost_connection, tls_required.
2285
81e509d7
PH
2286PH/60 When a VRFY deferred or FAILED, the log message rather than the user
2287 message was being sent as an SMTP response.
2288
3d240ff7
PH
2289PH/61 Add -l and -k options to exicyclog.
2290
b37c4101
PH
2291PH/62 When verifying, if an address was redirected to one new address, so that
2292 verification continued, and the new address failed or deferred after
2293 having set something in $address_data, the value of $address_data was not
2294 passed back to the ACL. This was different to the case when no
2295 redirection occurred. The value is now passed back in both cases.
2296
79378e0f
PH
2297PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
2298 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
2299 use login_cap.h, so on its own it isn't the distinguishing feature. The
2300 new name refers directly to the setclassresources() function.
2301
e49c7bb4
PH
2302PH/65 Added configuration files for NetBSD3.
2303
d114ec46
PH
2304PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
2305
f3d7df6c
PH
2306PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
2307 is preferred over IPv4.
2308
715ab376
PH
2309PH/68 The bounce_return_message and bounce_return_body options were not being
2310 honoured for bounces generated during the reception of non-SMTP messages.
2311 In particular, this applied to messages rejected by the ACL. This bug has
2312 been fixed. However, if bounce_return_message is true and bounce_return_
2313 body is false, the headers that are returned for a non-SMTP message
2314 include only those that have been read before the error was detected.
2315 (In the case of an ACL rejection, they have all been read.)
2316
6b31b150
PH
2317PH/69 The HTML version of the specification is now built in a directory called
2318 spec_html instead of spec.html, because the latter looks like a path with
2319 a MIME-type, and this confuses some software.
2320
2321PH/70 Catch two compiler warnings in sieve.c.
2322
d515a917
PH
2323PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
2324 function verify_get_ident() calls ip_connect() to connect a socket, but
2325 if the "connect()" function timed out, ip_connect() used to close the
2326 socket. However, verify_get_ident() also closes the socket later, and in
2327 between Exim writes to the log, which may get opened at this point. When
2328 the socket was closed in ip_connect(), the log could get the same file
2329 descriptor number as the socket. This naturally causes chaos. The fix is
2330 not to close the socket in ip_connect(); the socket should be closed by
2331 the function that creates it. There was only one place in the code where
2332 this was missing, in the iplookup router, which I don't think anybody now
2333 uses, but I've fixed it anyway.
2334
9b8fadde
PH
2335PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
2336 well as to direct DNS lookups. Otherwise the handling of names in host
2337 lists is inconsistent and therefore confusing.
2338
214e2000 2339
5de37277
PH
2340Exim version 4.60
2341-----------------
2342
cc38ddbf
PH
2343PH/01 Two changes to the default runtime configuration:
2344
2345 (1) Move the checks for relay_from_hosts and authenticated clients from
2346 after to before the (commented out) DNS black list checks.
2347
2348 (2) Add control=submission to the relay_from_hosts and authenticated
2349 clients checks, on the grounds that messages accepted by these
2350 statements are most likely to be submissions.
5de37277 2351
72fdd6ae
PH
2352PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
2353
2354 (1) Generate an error if the third argument for the ${prvs expansion is
2355 not a single digit.
2356
2357 (2) Treat a missing third argument of ${prvscheck as if it were an empty
2358 string.
2359
2360 (3) Reset the variables that are obtained from the first argument of
2361 ${prvscheck and used in the second argument before leaving the code,
2362 because their memory is reclaimed, so using them afterwards may do
2363 silly things.
2364
2365 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
2366 one (it's much easier than Tom thought :-).
2367
2368 (5) Because of (4), we can now allow for the use of $prvscheck_result
2369 inside the third argument.
cb9328de 2370
cb741023
PH
2371PH/03 For some reason, the default setting of PATH when running a command from
2372 a pipe transport was just "/usr/bin". I have changed it to
2373 "/bin:/usr/bin".
2374
f174f16e
PH
2375PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
2376 anything to be listed in the output from -bV.
b2f5a032 2377
c25242d7
PH
2378PH/05 When a filter generated an autoreply, the entire To: header line was
2379 quoted in the delivery log line, like this:
2380
2381 => >A.N.Other <ano@some.domain> <original@ddress> ...
2382
2383 This has been changed so that it extracts the operative address. There
2384 may be more than one such address. If so, they are comma-separated, like
2385 this:
2386
2387 => >ano@some.domain,ona@other.domain <original@ddress> ...
2388
82c19f95
PH
2389PH/06 When a client host used a correct literal IP address in a HELO or EHLO
2390 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
2391 not being looked up in the rDNS to get a host name, Exim was showing the
2392 IP address twice in Received: lines, even though the IP addresses were
2393 identical. For example:
2394
2395 Received: from [1.2.3.4] (helo=[1.2.3.4])
2396
2397 However, if the real host name was known, it was omitting the HELO data
2398 if it matched the actual IP address. This has been tidied up so that it
2399 doesn't show the same IP address twice.
2400
d7ffbc12
PH
2401PH/07 When both +timestamp and +memory debugging was on, the value given by
2402 $tod_xxx expansions could be wrong, because the tod_stamp() function was
2403 called by the debug printing, thereby overwriting the timestamp buffer.
2404 Debugging no longer uses the tod_stamp() function when +timestamp is set.
2405
9f526266
PH
2406PH/08 When the original message was included in an autoreply transport, it
2407 always said "this is a copy of the message, including all the headers",
2408 even if body_only or headers_only was set. It now gives an appropriate
2409 message.
2410
87fcc8b9
PH
2411PH/09 Applied a patch from the Sieve maintainer which:
2412
2413 o fixes some comments
2414 o adds the (disabled) notify extension core
2415 o adds some debug output for the result of if/elsif tests
2416 o points to the current vacation draft in the documentation
2417 and documents the missing references header update
2418
2419 and most important:
2420
2421 o fixes a bug in processing the envelope test (when testing
2422 multiple envelope elements, the last element determinted the
2423 result)
2424
456682f5
PH
2425PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
2426 Electronic Mail") by including:
2427
2428 Auto-submitted: auto-generated
2429
2430 in the messages that it generates (bounce messages and others, such as
2431 warnings). In the case of bounce messages for non-SMTP mesages, there was
2432 also a typo: it was using "Auto_submitted" (underscore instead of
2433 hyphen). Since every message generated by Exim is necessarily in response
2434 to another message, thes have all been changed to:
2435
2436 Auto-Submitted: auto-replied
2437
2438 in accordance with these statements in the RFC:
2439
2440 The auto-replied keyword:
2441
2442 - SHOULD be used on messages sent in direct response to another
2443 message by an automatic process,
2444
2445 - MUST NOT be used on manually-generated messages,
2446
2447 - MAY be used on Delivery Status Notifications (DSNs) and Message
2448 Disposition Notifications (MDNs),
2449
2450 - MUST NOT be used on messages generated by automatic or periodic
2451 processes, except for messages which are automatic responses to
2452 other messages.
2453
3e46c1aa
PH
2454PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
2455 to the default Received: header definition.
456682f5 2456
49826d12
PH
2457PH/12 Added log selector acl_warn_skipped (default on).
2458
eba0c039
PH
2459PH/13 After a successful wildlsearch lookup, discard the values of numeric
2460 variables because (a) they are in the wrong storage pool and (b) even if
2461 they were copied, it wouldn't work properly because of the caching.
2462
a0d6ba8a
PH
2463PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2464 checking when decoding. Apparently there are clients that generate
2465 overlong encoded strings. Why am I not surprised?
2466
f0917727
PH
2467PH/15 If the first argument of "${if match_address" was not empty, but did not
2468 contain an "@" character, Exim crashed. Now it writes a panic log message
2469 and treats the condition as false.
2470
096fee00
PH
2471PH/16 In autoreply, treat an empty string for "once" the same as unset.
2472
024bd3c2
PH
2473PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2474 extension "envelope-auth". The code is finished and in agreement with
2475 other implementations, but there is no documentation so far and in fact,
2476 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2477 not changing the active code.
2478
2479 Print executed "if" and "elsif" statements when debugging is used. This
2480 helps a great deal to understand what a filter does.
2481
2482 Document more things not specified clearly in RFC3028. I had all this
2483 sorted out, when out of a sudden new issues came to my mind. Oops."
2484
df199fec
PH
2485PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2486 (Bugzilla #53).
2487
d27f1df3
PH
2488PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2489 canonical form (as documented). However, after a host name lookup from
2490 the IP address, check_host() was doing a simple string comparison with
2491 addresses acquired from the DNS when checking that the found name did
2492 have the original IP as one of its addresses. Since any found IPv6
2493 addresses are likely to be in abbreviated form, the comparison could
2494 fail. Luckily, there already exists a function for doing the comparison
2495 by converting both addresses to binary, so now that is used instead of
2496 the text comparison.
2497
96776534
PH
2498PH/20 There was another similar case to PH/19, when a complete host name was
2499 given in a host list; looking up its IP address could give an abbreviated
2500 form, whereas the current host's name might or might not be abbreviated.
2501 The same fix has been applied.
2502
5de37277 2503
9a799bc0
PH
2504Exim version 4.54
2505-----------------
2506
2507PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2508 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2509 It now does.
2510
99a4b039
PH
2511PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2512 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2513
2514PH/03 Typo: missing ".o" in src/pcre/Makefile.
2515
4b233853
PH
2516PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2517 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2518 Also, for "Auto-Submitted", treat anything other than "no" as
2519 non-personal, in accordance with RFC 3834. (Previously it treated
2520 anything starting "auto-" as non-personal.)
2521
8857ccfd
PH
2522TF/01 The control=submission/name=... option had a problem with syntax
2523 errors if the name included a slash character. The /name= option
2524 now slurps the rest of the string, so it can include any characters
2525 but it must come last in the list of options (after /sender_retain
2526 or /domain=).
2527
433a2980
PH
2528PH/05 Some modifications to the interface to the fake nameserver for the new
2529 testing suite.
2530
3e46c1aa 2531
9a799bc0 2532
e3a311ba
TK
2533Exim version 4.53
2534-----------------
2535
2536TK/01 Added the "success_on_redirect" address verification option. See
2537 NewStuff for rationale and an example.
2538
13b685f9
PH
2539PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2540
395ff96d
PH
2541PH/02 Patch to exigrep to allow it to work on syslog lines.
2542
5b68f6e4
PH
2543PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2544 fread() to skip over the body file's header line, because in Cygwin the
2545 header line is locked and is inaccessible.
2546
1ab52c69
PH
2547PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2548 co-exist for some time) to make it clear that it is the Exim ID that is
2549 referenced, not the Message-ID: header line.
2550
b07e6aa3
PH
2551PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2552 string_format() function, because snprintf() does not exist on all
2553 operating systems.
2554
254e032f
PH
2555PH/06 The use of forbid_filter_existstest now also locks out the use of the
2556 ${stat: expansion item.
2557
3af76a81
PH
2558PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2559 protocol synchronization error", to keep the pedants happy.
2560
2548ba04
PH
2561PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2562 well as for IRIX systems, when gcc is being used. See the host.c source
2563 file for comments.
2564
b6c6011d
PH
2565PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2566
cf39cf57
PH
2567PH/10 Named domain lists were not working if used in a queue_smtp_domains
2568 setting.
2569
f1513293
PH
2570PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2571 transport and to the smtp transport in LMTP mode.
2572
727549a4
PH
2573TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2574
af46795e
PH
2575PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2576 run a filter in a subprocess. This could lead to confusion in subsequent
2577 lookups in the parent process. There should also be a search_tidyup() at
2578 the end of the subprocess.
2579
d7b47fd0
PH
2580PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2581 only if the host matched helo_try_verify_hosts, which caused the
2582 verification to occur when the EHLO/HELO command was issued. The ACL just
2583 tested the remembered result. Now, if a previous verification attempt has
2584 not happened, "verify = helo" does it there and then.
2585
ee744174
JJ
2586JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2587
b582ab87
PH
2588TK/03 Fix log output including CR from clamd.
2589
41a13e0a
PH
2590PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2591 exist provoked a memory error which could cause a segfault.
2592
f625cc5a
PH
2593PH/15 Installed PCRE 6.2
2594
2595PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2596
21f7af35
PH
2597PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2598 of the problem. Specifically, suggested +O2 rather than +O1 for the
2599 HP-UX compiler.
2600
31480e42
PH
2601PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2602
2d280592
PH
2603PH/20 If a delivery was routed to a non-standard port by means of an SRV
2604 record, the port was not correctly logged when the outgoing_port log
2605 selector was set (it logged the transort's default port).
2606
7cd1141b
PH
2607PH/21 Added support for host-specific ports to manualroute, queryprogram,
2608 fallback_hosts, and "hosts" in the smtp transport.
2609
2610PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2611 host errors such as "Connection refused".
2612
750af86e
PH
2613PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2614 authentication with radiusclient 0.4.9:
2615
2616 - Error returned from rc_read_config was caught wrongly
2617 - Username/password not passed on to radius server due to wrong length.
2618
2619 The presumption is that some radiusclient API changes for 4.51/PH/17
2620 were not taken care of correctly. The code is still untested by me (my
2621 Linux distribution still has 0.3.2 of radiusclient), but it was
2622 contributed by a Radius user.
2623
2624PH/24 When doing a callout, the value of $domain wasn't set correctly when
2625 expanding the "port" option of the smtp transport.
2626
4304270b
TK
2627TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2628 while reading a MIME header. Thanks to Tom Hughes for a patch.
2629
750af86e
PH
2630PH/24 Include config.h inside local_scan.h so that configuration settings are
2631 available.
2632
64ffc24f
PH
2633PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2634 that in an ACL for RCPT (for example), you can examine exactly what was
2635 received.
2636
5dd9625b
PH
2637PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2638 commands, but it was not correctly comparing the address with the actual
2639 client host address. Thus, it would show the EHLO address in Received:
2640 header lines when this was not necessary.
2641
5591031b
PH
2642PH/27 Added the % operator to ${eval:}.
2643
ba18e66a
PH
2644PH/28 Exim tries to create and chdir to its spool directory when it starts;
2645 it should be ignoring failures (because with -C, for example, it has lost
2646 privilege). It wasn't ignoring creation failures other than "already
2647 exists".
2648
9cec981f
PH
2649PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2650 -bV or -d is used.
2651
aa2b5c79
PH
2652PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2653 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2654 too many continuations, the temporary file was not being removed, and the
2655 return code was incorrect.
aa2b5c79 2656
48a53b7f
PH
2657PH/31 Missing "BOOL" in function definition in filtertest.c.
2658
1c59d63b
PH
2659PH/32 Applied Sieve patches from the maintainer.
2660
671012da
TK
2661TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2662
1509d3a8
PH
2663PH/33 Added "verify = not_blind".
2664
2665PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2666 Local/Makefile (with some defaults set). These are used in built scripts
2667 such as exicyclog, but they have never been used in the exim_install
2668 script (though there are many overriding facilities there). I have
2669 arranged that the exim_install script now takes note of these two
2670 settings.
2671
2672PH/35 Installed configuration files for Dragonfly.
2673
2fe1a124
PH
2674PH/36 When a locally submitted message by a trusted user did not contain a
2675 From: header, and the sender address was obtained from -f or from an SMTP
2676 MAIL command, and the trusted user did not use -F to supply a sender
2677 name, $originator_name was incorrectly used when constructing a From:
2678 header. Furthermore, $originator_name was used for submission mode
2679 messages from external hosts without From: headers in a similar way,
2680 which is clearly wrong.
2681
8800895a
PH
2682PH/37 Added control=suppress_local_fixups.
2683
ccfdb010
PH
2684PH/38 When log_selector = +received_sender was set, and the addition of the
2685 sender made the log line's construction buffer exactly full, or one byte
2686 less than full, an overflow happened when the terminating "\n" was
2687 subsequently added.
2688
1130bfb0
PH
2689PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2690 when the result of a list match is failure because a DNS lookup failed.
2691
ebcb507f
PH
2692PH/40 RM_COMMAND is now used in the building process.
2693
c35e155c
PH
2694PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2695 the "build-* directories that it finds.
2696
95d1f782
PH
2697PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2698 address in a domain literal was a prefix of an interface address.
2699
fd6de02e
PH
2700PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2701 when verifying a sender address, unless rewrite_headers is false.
2702
58de37c5
PH
2703PH/44 Wrote a long comment about why errors_to addresses are verified as
2704 recipients, not senders.
2705
261cf466
TF
2706TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2707 the ratelimit ACL was added.
2708
3ee512ff
PH
2709PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2710
e08c430f
PH
2711PH/46 Added extra information about PostgreSQL errors to the error string.
2712
bef5a11f
PH
2713PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2714 avoiding the need to install special zones in a real server. This is
2715 backwards compatible; if it can't find the fake resolver, it drops back.
2716 Thus, both old and new test suites can be run.
2717
7546de58
TF
2718TF/02 Added util/ratelimit.pl
2719
e5d5a95f
TF
2720TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2721 clock is set back in time.
2722
2e88a017
TF
2723TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2724 Candler <B.Candler@pobox.com>.
2725
a5f65aa4
TF
2726TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2727 OK for addresses that are the result of redirections.
2728
e7726cbf
PH
2729PH/48 A number of further additions for the benefit of the new test suite,
2730 including a fake gethostbyname() that interfaces to the fake DNS resolver
2731 (see PH/47 above).
2732
a7fdad5b
TF
2733TF/06 The fix for widen_domains has also been applied to qualify_single and
2734 search_parents which are the other dnslookup options that can cause
2735 header rewrites.
2736
6af56900
PH
2737PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2738 type ("H").
2739
0925ede6
PH
2740PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2741
66afa403
TF
2742TF/07 Exim produced the error message "an SRV record indicated no SMTP
2743 service" if it encountered an MX record with an empty target hostname.
2744 The message is now "an MX or SRV record indicated no SMTP service".
2745
0154e85a
TF
2746TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2747 if the DNS of the sending site is misconfigured. This is quite a
2748 common situation. This change restores the behaviour of treating a
2749 helo verification defer as a failure.
2750
16f12c76
PH
2751PH/51 If self=fail was set on a router, the bounce message did not include the
2752 actual error message.
2753
bbe902f0 2754
e5a9dba6
PH
2755Exim version 4.52
2756-----------------
2757
2758TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2759
22c3b60b
PH
2760PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2761 command itself ended in error, the underlying message about the transport
2762 filter timeout was being overwritten with the pipe command error. Now the
2763 underlying error message should be appended to the second error message.
2764
06a9b4b5
PH
2765TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2766
c1ac6996
PH
2767PH/02 Reduce the amount of output that "make" produces by default. Full output
2768 can still be requested.
2769
9c7a242c
PH
2770PH/03 The warning log line about a condition test deferring for a "warn" verb
2771 was being output only once per connection, rather than after each
2772 occurrence (because it was using the same function as for successful
2773 "warn" verbs). This seems wrong, so I have changed it.
2774
87ba3f5f
PH
2775TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2776 it should not have, which might have caused a crash in the right
2777 circumstances, but probably never did.
2778
2779PH/04 Installed a modified version of Tony Finch's patch to make submission
2780 mode fix the return path as well as the Sender: header line, and to
2781 add a /name= option so that you can make the user's friendly name appear
2782 in the header line.
2783
29aba418
TF
2784TF/03 Added the control = fakedefer ACL modifier.
2785
fe0dab11
TF
2786TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2787 Mark Lowes for thorough testing.
870f6ba8 2788
11d337a4
TK
2789TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2790
2791TK/03 Merged latest SRS patch from Miles Wilton.
2792
415c8f3b
PH
2793PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2794 with the definition in sysexits.h (which is #included earlier).
2795 Fortunately, Exim does not actually use EX_OK. The code used to try to
2796 preserve the sysexits.h value, by assumimg that macro definitions were
2797 scanned for macro replacements. I have been disabused of this notion,
2798 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2799
958541e9
PH
2800PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2801 in the smtp transport. When a block could not be written in a single
2802 write() function, the timeout was being re-applied to each part-write.
2803 This seems wrong - if the receiver was accepting one byte at a time it
2804 would take for ever. The timeout is now adjusted when this happens. It
2805 doesn't have to be particularly precise.
2806
c206415f
TK
2807TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2808 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2809
2a4be8f9
PH
2810PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2811 without a domain if the check to <postmaster@domain> fails.
2812
1cba11c5
SC
2813SC/01 Eximstats: added -xls and the ability to specify output files
2814 (patch written by Frank Heydlauf).
2815
2816SC/02 Eximstats: use FileHandles for outputing results.
2817
2818SC/03 Eximstats: allow any combination of xls, txt, and html output.
2819
2820SC/04 Eximstats: fixed display of large numbers with -nvr option
2821
2822SC/05 Eximstats: fixed merging of reports with empty tables.
2823
2824SC/06 Eximstats: added the -include_original_destination flag
2825
2826SC/07 Eximstats: removed tabs and trailing whitespace.
2827
1005d00e
TK
2828TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2829
2830TK/06 MBOX spool code: Add real "From " MBOX separator line
2831 so the .eml file is really in mbox format (even though
2832 most programs do not really care). Patch from Alex Miller.
2833
2834TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2835 The latter is generated from $received_to and is only set if the
2836 message has one envelope recipient. SA can use these headers,
2837 obviously out-of-the-box. Patch from Alex Miller.
2838
9b4768fa
PH
2839PH/08 The ${def test on a variable was returning false if the variable's
2840 value was "0", contrary to what the specification has always said!
2841 The result should be true unless the variable is empty.
2842
2843PH/09 The syntax error of a character other than { following "${if
2844 def:variable_name" (after optional whitespace) was not being diagnosed.
2845 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2846 accidental colon was present, for example, could give incorrect results.
2847
0d7eb84a
PH
2848PH/10 Tidied the code in a number of places where the st_size field of a stat()
2849 result is used (not including appendfile, where other changes are about
2850 to be made).
2851
2852PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2853 This involved changing a lot of size variables from int to off_t. It
2854 should work with maildirs and everything.
2855
40727bee
TK
2856TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2857 spamd dying while we are connected to it.
2858
554d2369
TF
2859TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2860 <jgh@wizmail.org>
2861
1f922db1
PH
2862PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2863 function for BDB 4.3.
2864
ef213c3b
PH
2865PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2866
8ac170f3
PH
2867PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2868 the sources for PCRE have been re-arranged and more files are now
2869 involved.
2870
b1c749bb
PH
2871PH/15 The code I had for printing potentially long long variables in PH/11
2872 above was not the best (it lost precision). The length of off_t variables
2873 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2874 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2875 to be "long long int" or "long int". This is needed for the internal
2876 formatting function string_vformat().
b1c749bb 2877
4aac9b49
PH
2878PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2879 the configuration file to be ":syslog", then the script "guesses" where
2880 the logs files are, rather than using the compiled in default. In our
2881 case the guess is not the same as the compiled default, so the script
2882 suddenly stopped working when I started to use syslog. The patch checks
2883 to see if log_file_path is "". If so, it attempts to read it from exim
2884 with no configuration file to get the compiled in version, before it
2885 falls back to the previous guessing code."
2886
294520c8
TK
2887TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2888 implementing BATV in an Exim configuration. See NewStuff for the gory
2889 details.
2890
5bd022fe
PH
2891PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2892 Makefile that are specific to HP-UX.
2893
90e9ce59
PH
2894PH/18 If the "use_postmaster" option was set for a recipient callout together
2895 with the "random" option, the postmaster address was used as the MAIL
2896 FROM address for the random test, but not for the subsequent recipient
2897 test. It is now used for both.
2898
5ea81592
PH
2899PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2900 patch removes a few documentation additions to RFC 3028, because the
2901 latest draft now contains them. It adds the new en;ascii-case comparator
2902 and a new error check for 8bit text in MIME parts. Comparator and
2903 require names are now matched exactly. I enabled the subaddress
2904 extension, but it is not well tested yet (read: it works for me)."
2905
c6c2dc1d
PH
2906PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2907 rework some of the code of TK/09 above to avoid the hardwired use of
2908 "%lld" and "long long". Replaced the call to snprintf() with a call to
2909 string_vformat().
2910
fffffe4c
PH
2911PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2912 records point to non-existent hosts", "retry timeout exceeded", and
2913 "retry time not reached for any host after a long failure period".
ca02eafb 2914
9a26b6b2
PH
2915PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2916 experimental DomainKeys support:
2917
2918 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2919 (2) On an error such as an illegally used "control", the wrong name for
2920 the control was given.
2921
2922 These problems did NOT occur unless DomainKeys support was compiled.
2923
4aee0225
PH
2924PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2925
32d668a5
PH
2926PH/24 Added ${if match_ip condition.
2927
8187c3f3
PH
2928PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2929 databases so that it will be absolutely obvious if a crash occurs in the
2930 DB library. This is a regular occurrence (often caused by mis-matched
2931 db.h files).
2932
ff790e47 2933PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2934 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2935 picked up on a user's system that detects such things. There doesn't seem
2936 to be a gcc warning option for this - only an attribute that has to be
2937 put on the function's prototype. It seems that in Fedora Core 4 they have
2938 set this on a number of new functions. No doubt there will be more in due
2939 course.
ff790e47 2940
5417f6d1
PH
2941PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2942 specify a transport. However, if an address that was verified by such a
2943 router was the subject of a callout, Exim crashed because it tried to
2944 read the rcpt_include_affixes from the non-existent transport. Now it
2945 just assumes that the setting of that option is false. This bug was
2946 introduced by 4.51/PH/31.
2947
59cf8544
PH
2948PH/28 Changed -d+all to exclude +memory, because that information is very
2949 rarely of interest, but it makes the output a lot bigger. People tend to
2950 do -d+all out of habit.
2951
e7ad8a65
PH
2952PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2953 code in os-type was giving problems when libc.so lives in lib64, like on
2954 x86_64 Fedora Core.
2955
ade42478
PH
2956PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2957 aren't the modern standard, and it seems that some systems' include files
2958 don't always have them. Exim was already checking for some of the newer
2959 ones like T_AAAA, and defining it itself. I've added checks for all the
2960 record types that Exim uses.
2961
182ad5cf
PH
2962PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2963 not automatically generating a new one, as it is supposed to. This
2964 prevented TLS from working. If the file did exist, but contained invalid
2965 data, a new version was generated, as expected. It was only the case of a
2966 non-existent file that was broken.
2967
b0d9fc80
TK
2968TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2969 with a change in libdomainkeys > 0.64.
2970
2971TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2972 from DNS. If the selector record carries the flag, it now has
2973 precedence over the domain-wide flag.
2974
2975TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2976
47c7a64a
PH
2977PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2978 the use of a port name that isn't defined in /etc/services) occurred, the
2979 message was deferred as in a normal delivery, and thus remained on the
2980 spool, instead of being failed because of the mua_wrapper setting. This
2981 is now fixed, and I tidied up some of the mua_wrapper messages at the
2982 same time.
2983
a388bce4
SC
2984SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2985 the messages in a hash of arrays rather than using individual hashes.
2986 This is a bit cleaner and results in dramatic memory savings, albeit
2987 at a slight CPU cost.
2988
2989SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2990 as requested by Marc Sherman.
2991
2992SC/10 Eximstats: added histograms for user specified patterns as requested
2993 by Marc Sherman.
2994
0793e4ed
SC
2995SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2996
c58b88df
PH
2997PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2998 fopen() in the content-scanning modules that did not already have it.
2999
e7ad8a65 3000
7982096b
PH
3001Exim version 4.51
3002-----------------
3003
1a46a8c5
PH
3004TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
3005 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
3006
2f079f46 3007TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
3008
3009TK/03 Fix ACL "regex" condition not being available in MIME ACL.
3010
3011PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
3012 to test Sieve filters that use "vacation".
3013
3014PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
3015 that changes the way the GnuTLS parameters are stored in the cache file.
3016 The new format can be generated externally. For backward compatibility,
3017 if the data in the cache doesn't make sense, Exim assumes it has read an
3018 old-format file, and it generates new data and writes a new file. This
3019 means that you can't go back to an older release without removing the
3020 file.
3021
3022PH/03 A redirect router that has both "unseen" and "one_time" set does not
3023 work if there are any delivery delays because "one_time" forces the
3024 parent to be marked "delivered", so its unseen clone is never tried
3025 again. For this reason, Exim now forbids the simultaneous setting of
3026 these two options.
3027
3028PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
3029 redirected to themselves ("homonym" addresses). Read the long ChangeLog
3030 entry if you want to know the details. The fix, however, neglected to
3031 consider the case when local delivery batching is involved. The test for
3032 "previously delivered" was not happening when checking to see if an
3033 address could be batched with a previous (undelivered) one; under
3034 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 3035 address.
1a46a8c5
PH
3036
3037PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
3038 in its include files, and this causes problems building Exim.
3039
3040PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
3041 header_syntax) but Exim was just ignoring anything given after a slash.
3042 In particular, this caused confusion with an attempt to use "verify =
3043 reverse_host_lookup/defer_ok". An error is now given when options are
3044 supplied for verify items that do not have them. (Maybe reverse_host_
3045 lookup should have a defer_ok option, but that's a different point.)
3046
3047PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
3048 defined by RFC 821) to 2048, because there were problems with some AUTH
3049 commands, and RFC 1869 says the size should be increased for extended
3050 SMTP commands that take arguments.
3051
3052PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
3053 Finch).
3054
3055PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
3056 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 3057
49c2d5ea
PH
3058PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
3059 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
3060 whatever). Otherwise the password may appear in the log. Following change
3061 PH/42 below, there is no longer a chance of it appearing in a bounce
3062 message.
49c2d5ea 3063
bf759a8b
PH
3064PH/11 Installed exipick version 20050225.0 from John Jetmore.
3065
83364d30
PH
3066PH/12 If the last host in a fallback_hosts list was multihomed, only the first
3067 of its addresses was ever tried. (Bugzilla bug #2.)
3068
7999bbd7
PH
3069PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
3070 the result incorrectly in the debug output. (It correctly added a newline
3071 to what was transported.)
3072
7dbf77c9
PH
3073TF/01 Added $received_time.
3074
74e0617f
PH
3075PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
3076 commented out examples of how to interface to a virus scanner and to
3077 SpamAssassin. Also added commented examples of av_scanner and
3078 spamd_address settings.
3079
2f079f46
PH
3080PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
3081 and controls are allowed in which ACLs. There were a couple of minor
3082 errors. Some of the entries in the conditions table (which is a table of
3083 where they are NOT allowed) were getting very unwieldy; rewrote them as a
3084 negation of where the condition IS allowed.
3085
8c841523
PH
3086PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
3087
7766a4f0
PH
3088PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
3089 header file does not have a version number, so I've had to invent a new
3090 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
3091 API. The code is untested by me (my Linux distribution still has 0.3.2 of
3092 radiusclient), but it was contributed by a Radius user.
3093
8b417f2c
PH
3094PH/18 Installed Lars Mainka's patch for the support of CRL collections in
3095 files or directories, for OpenSSL.
3096
901f42cb
PH
3097PH/19 When an Exim process that is running as root has to create an Exim log
3098 file, it does so in a subprocess that runs as exim:exim so as to get the
3099 ownership right at creation (otherwise, other Exim processes might see
3100 the file with the wrong ownership). There was no test for failure of this
3101 fork() call, which would lead to the process getting stuck as it waited
3102 for a non-existent subprocess. Forks do occasionally fail when resources
3103 run out. I reviewed all the other calls to fork(); they all seem to check
3104 for failure.
3105
f9b9210e
PH
3106PH/20 When checking for unexpected SMTP input at connect time (before writing
3107 the banner), Exim was not dealing correctly with a non-positive return
3108 from the read() function. If the client had disconnected by this time,
3109 the result was a log entry for a synchronization error with an empty
3110 string after "input=" when read() returned zero. If read() returned -1
3111 (an event I could not check), uninitialized data bytes were printed.
3112 There were reports of junk text (parts of files, etc) appearing after
3113 "input=".
3114
54cdb463
PH
3115PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
3116
cf00dad6
PH
3117PH/22 Added support for macro redefinition, and (re)definition in between
3118 driver and ACL definitions.
3119
acb1b346
PH
3120PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
3121 forgetting to use the resulting value; it was using the unexpanded value.
3122
c5ddb310
PH
3123PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
3124 hadn't been configured. The fix is from Juergen Kreileder, who
3125 understands it better than I do:
3126
3127 "Here's what I see happening with three configured cyrus_sasl
3128 authenticators configured (plain, login, cram-md5):
3129
3130 On startup auth_cyrus_sasl_init() gets called for each of these.
3131 This means three calls to sasl_listmech() without a specified mech_list.
3132 => SASL tests which mechs of all available mechs actually work
3133 => three warnings about OTP not working
3134 => the returned list contains: plain, login, cram-md5, digest-md5, ...
3135
3136 With the patch, sasl_listmech() also gets called three times. But now
3137 SASL's mech_list option is set to the server_mech specified in the the
3138 authenticator. Or in other words, the answer from sasl_listmech()
3139 gets limited to just the mech you're testing for (which is different
3140 for each call.)
3141 => the return list contains just 'plain' or 'login', 'cram-md5' or
3142 nothing depending on the value of ob->server_mech.
3143
3144 I've just tested the patch: Authentication still works fine,
3145 unavailable mechs specified in the exim configuration are still
3146 caught, and the auth.log warnings about OTP are gone."
3147
31619da6
PH
3148PH/25 When debugging is enabled, the contents of the command line are added
3149 to the debugging output, even when log_selector=+arguments is not
3150 specified.
3151
bebaf0fc
PH
3152PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
3153 answer is "GNU", and only if the return is "GNU/something" is the answer
3154 "Linux".
3155
475fe28a
PH
3156PH/27 $acl_verify_message is now set immediately after the failure of a
3157 verification in an ACL, and so is available in subsequent modifiers. In
3158 particular, the message can be preserved by coding like this:
3159
3160 warn !verify = sender
3161 set acl_m0 = $acl_verify_message
3162
3163 Previously, $acl_verify_message was set only while expanding "message"
3164 and "log_message" when a very denied access.
3165
7e8bec7a
PH
3166PH/28 Modified OS/os.c-Linux with
3167
3168 -#ifndef OS_LOAD_AVERAGE
3169 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
3170
3171 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
3172 nomenclature these days.)
3173
e4a89c47
PH
3174PH/29 Installed patch from the Sieve maintainer that adds the options
3175 sieve_useraddress and sieve_subaddress to the redirect router.
3176
5ca2a9a1
PH
3177PH/30 In these circumstances:
3178 . Two addresses routed to the same list of hosts;
3179 . First host does not offer TLS;
3180 . First host accepts first address;
3181 . First host gives temporary error to second address;
3182 . Second host offers TLS and a TLS session is established;
3183 . Second host accepts second address.
3184 Exim incorrectly logged both deliveries with the TLS parameters (cipher
3185 and peerdn, if requested) that were in fact used only for the second
3186 address.
7e8bec7a 3187
c688b954
PH
3188PH/31 When doing a callout as part of verifying an address, Exim was not paying
3189 attention to any local part prefix or suffix that was matched by the
3190 router that accepted the address. It now behaves in the same way as it
3191 does for delivery: the affixes are removed from the local part unless
3192 rcpt_include_affixes is set on the transport.
3193
fed77020
PH
3194PH/32 Add the sender address, as F=<...>, to the log line when logging a
3195 timeout during the DATA phase of an incoming message.
3196
7fe1560f
PH
3197PH/33 Sieve envelope tests were broken for match types other than :is. I have
3198 applied a patch sanctioned by the Sieve maintainer.
c688b954 3199
ebb6e6d5
PH
3200PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
3201 the uid or gid is negative. A case of a negative gid caused this to be
3202 noticed. The fix allows for either to be negative.
3203
9c4e8f60
PH
3204PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
3205 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
3206 overlooked.
3207
3208PH/36 The change PH/12 above was broken. Fixed it.
3209
d7174846
PH
3210PH/37 Exim used to check for duplicate addresses in the middle of routing, on
3211 the grounds that routing the same address twice would always produce the
3212 same answer. This might have been true once, but it is certainly no
3213 longer true now. Routing a child address may depend on the previous
3214 routing that produced that child. Some complicated redirection strategies
3215 went wrong when messages had multiple recipients, and made Exim's
3216 behaviour dependent on the order in which the addresses were given.
3217
3218 I have moved the duplicate checking until after the routing is complete.
3219 Exim scans the addresses that are assigned to local and remote
3220 transports, and removes any duplicates. This means that more work will be
3221 done, as duplicates will always all be routed, but duplicates are
3222 presumably rare, so I don't expect this is of any significance.
3223
3224 For deliveries to pipes, files, and autoreplies, the duplicate checking
3225 still happens during the routing process, since they are not going to be
3226 routed further.
3227
cfe75fc3
PH
3228PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
3229 It corrects a timeout issue with spamd. This is Ian's comment: "The
3230 background is that sometimes spamd either never reads data from a
3231 connection it has accepted, or it never writes response data. The exiscan
3232 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
3233 blindly assumes that writes won't block so it may never time out."
3234
be22d70e
PH
3235PH/39 Allow G after quota size as well as K and M.
3236
0612b098
PH
3237PH/40 The value set for $authenticated_id in an authenticator may not contain
3238 binary zeroes or newlines because the value is written to log lines and
3239 to spool files. There was no check on this. Now the value is run through
3240 the string_printing() function so that such characters are converted to
3241 printable escape sequences.
3242
2e0c1448
PH
3243PH/41 $message_linecount is a new variable that contains the total number of
3244 lines in the message. Compare $body_linecount, which is the count for the
3245 body only.
3246
447d236c
PH
3247PH/42 Exim no longer gives details of delivery errors for specific addresses in
3248 bounce and delay warning messages, except in certain special cases, which
3249 are as follows:
3250
3251 (a) An SMTP error message from a remote host;
3252 (b) A message specified in a :fail: redirection;
3253 (c) A message specified in a "fail" command in a system filter;
3254 (d) A message specified in a FAIL return from the queryprogram router;
3255 (e) A message specified by the cannot_route_message router option.
3256
3257 In these cases only, Exim does include the error details in bounce and
3258 warning messages. There are also a few cases where bland messages such
3259 as "unrouteable address" or "local delivery error" are given.
3260
d20976dc
PH
3261PH/43 $value is now also set for the "else" part of a ${run expansion.
3262
f656d135
PH
3263PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
3264 being worked on, but at least Exim now implements the latest version to
3265 play with."
3266
2e2a30b4
PH
3267PH/45 In a pipe transport, although a timeout while waiting for the pipe
3268 process to complete was treated as a delivery failure, a timeout while
3269 writing the message to the pipe was logged, but erroneously treated as a
3270 successful delivery. Such timeouts include transport filter timeouts. For
3271 consistency with the overall process timeout, these timeouts are now
3272 treated as errors, giving rise to delivery failures by default. However,
3273 there is now a new Boolean option for the pipe transport called
3274 timeout_defer, which, if set TRUE, converts the failures into defers for
3275 both kinds of timeout. A transport filter timeout is now identified in
3276 the log output.
3277
9176e9f0
PH
3278PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
3279 systems where "make" and "gmake" are different, calling "gmake" at top
3280 level broke things. I've arranged for the value of $(MAKE) to be passed
3281 from the Makefile to this script so that it can call the same version of
3282 "make".
3283
7982096b 3284
bbe902f0
PH
3285A note about Exim versions 4.44 and 4.50
3286----------------------------------------
3287
3288Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
3289changes of various kinds. As a consequence, a big documentation update was
3290needed. This delayed the release for rather longer than seemed good, especially
3291in the light of a couple of (minor) security issues. Therefore, the changes
3292that fixed bugs were backported into 4.43, to create a 4.44 maintenance
3293release. So 4.44 and 4.50 are in effect two different branches that both start
3294from 4.43.
3295
3296I have left the 4.50 change log unchanged; it contains all the changes since
32974.43. The change log for 4.44 is below; many of its items are identical to
3298those for 4.50. This seems to be the most sensible way to preserve the
3299historical information.
3300
3301
f7b63901 3302Exim version 4.50
495ae4b0
PH
3303-----------------
3304
5fe762f6
PH
3305 1. Minor wording change to the doc/README.SIEVE file.
3306
139059f6 3307 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 3308 computation of the current number of files was incorrect.
495ae4b0 3309
7086e875
PH
3310 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3311 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3312 place.
3313
35af9f61
PH
3314 4. Give more explanation in the error message when the command for a transport
3315 filter fails to execute.
3316
b668c215
PH
3317 5. There are several places where Exim runs a non-Exim command in a
3318 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3319 was being done only for the command run by the queryprogram router. It is
3320 now done for all such subprocesses. The other cases are: ${run, transport
3321 filters, and the commands run by the lmtp and pipe transports.
3322
a494b1e1
PH
3323 6. Added CONFIGURE_GROUP build-time option.
3324
3325 7. Some older OS have a limit of 256 on the maximum number of file
3326 descriptors. Exim was using setrlimit() to set 1000 as a large value
3327 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3328 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 3329
c5fcb476
PH
3330 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3331 was an oversight, and furthermore, ever since the addition of extra
3332 controls (e.g. 4.43/32), the checks on when to allow different forms of
3333 "control" were broken. There should now be diagnostics for all cases when a
3334 control that does not make sense is encountered.
3335
69358f02
PH
3336 9. Added the /retain_sender option to "control=submission".
3337
5be20824
PH
333810. $recipients is now available in the predata ACL (oversight).
3339
eb2c0248
PH
334011. Tidy the search cache before the fork to do a delivery from a message
3341 received from the command line. Otherwise the child will trigger a lookup
3342 failure and thereby defer the delivery if it tries to use (for example) a
3343 cached ldap connection that the parent has called unbind on.
3344
2a3eea10
PH
334512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3346 of $address_data from the recipient verification was clobbered by the
3347 sender verification.
3348
334913. The value of address_data from a sender verification is now available in
3350 $sender_address_data in subsequent conditions in the ACL statement.
3351
23c7ff99
PH
335214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
3353
4deaf07d
PH
335415. Added a new option "connect=<time>" to callout options, to set a different
3355 connection timeout.
3356
926e1192
PH
335716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3358 was its contents. (It was OK if the option was not defined at all.)
3359
650edc6f
PH
336017. A "Completed" log line is now written for messages that are removed from
3361 the spool by the -Mrm option.
3362
2c7db3f5
PH
336318. New variables $sender_verify_failure and $recipient_verify_failure contain
3364 information about exactly what failed.
3365
3d235903
PH
336619. Added -dd to debug only the daemon process.
3367
7c7ad977
PH
336820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
3369 handles timeouts, both on the server side and network timeouts. Renamed the
3370 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
3371
981756db
PH
337221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
3373 It is now set to "smtps".
3374
d4eb88df
PH
337522. $host_address is now set to the target address during the checking of
3376 ignore_target_hosts.
3377
337823. When checking ignore_target_hosts for an ipliteral router, no host name was
3379 being passed; this would have caused $sender_host_name to have been used if
3380 matching the list had actually called for a host name (not very likely,
3381 since this list is usually IP addresses). A host name is now passed as
3382 "[x.x.x.x]".