Update eximstats to watch out for senders sending 'HELO [IpAddr]'
[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
976b7e9f
JH
47JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
48
be4a1376
JH
49JH/02 Support "G" suffix to numbers in ${if comparisons.
50
ec4b68e5
PP
51PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
52
d7148a07
NM
53NM/01 Bugzilla 1197 - Spec typo
54 Bugzilla 1196 - Spec examples corrections
ec4b68e5 55
585121e2 56JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 57
a5f239e4
PP
58PP/09 Add gnutls_enable_pkcs11 option.
59
13d08c90
PP
60PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
61 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
62
bef3ea7f
JH
63JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
64 "acl {{name}{arg}...}", and optional args on acl condition
65 "acl = name arg..."
a5f239e4 66
846726c5
JH
67JH/05 Permit multiple router/transport headers_add/remove lines.
68
3a796370
JH
69JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
70
ea722490 71JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
72 Performance patch from Paul Fisher. Bugzilla 1262.
73
b1b05573
JH
74JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
75 Bugzilla 884.
76
362145b5
JH
77JH/09 Add $headers_added variable, with content from use of ACL modifier
78 add_header (but not yet added to the message). Bugzilla 199.
79
3c0a92dc
JH
80JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
81 Pulled from Bugzilla 817 by Wolfgang Breyha.
82
6d7c6175
PP
83PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
84 CVE-2012-5671
85
6f123593
JH
86JH/11 Add A= logging on delivery lines, and a client_set_id option on
87 authenticators.
88
c8e2fc1e
JH
89JH/12 Add optional authenticated_sender logging to A= and a log_selector
90 for control.
91
005ac57f
PP
92PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
93
3f1df0e3
PP
94PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
95 advertise SMTP AUTH mechanism to us, instead of a generic
96 protocol violation error. Also, make Exim more robust to bad
97 data from the Dovecot auth socket.
98
67bd1ab3
TF
99TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
100
101 When a queue runner is handling a message, Exim first routes the
102 recipient addresses, during which it prunes them based on the retry
103 hints database. After that it attempts to deliver the message to
104 any remaining recipients. It then updates the hints database using
105 the retry rules.
106
107 So if a recipient address works intermittently, it can get repeatedly
108 deferred at routing time. The retry hints record remains fresh so the
109 address never reaches the final cutoff time.
110
111 This is a fairly common occurrence when a user is bumping up against
112 their storage quota. Exim had some logic in its local delivery code
113 to deal with this. However it did not apply to per-recipient defers
114 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
115
1ddeb334
TF
116 This change adds a proper retry rule check during routing so that the
117 final cutoff time is checked against the message's age. We only do
118 this check if there is an address retry record and there is not a
119 domain retry record; this implies that previous attempts to handle
120 the address had the retry_use_local_parts option turned on. We use
121 this as an approximation for the destination being like a local
122 delivery, as in LMTP.
67bd1ab3
TF
123
124 I suspect this new check makes the old local delivery cutoff check
125 redundant, but I have not verified this so I left the code in place.
126
326cdc37
TF
127TF/02 Correct gecos expansion when From: is a prefix of the username.
128
129 Test 0254 submits a message to Exim with the header
130
131 Resent-From: f
132
133 When I ran the test suite under the user fanf2, Exim expanded
134 the header to contain my full name, whereas it should have added
135 a Resent-Sender: header. It erroneously treats any prefix of the
136 username as equal to the username.
137
138 This change corrects that bug.
139
f62514b3
GF
140GF/01 DCC debug and logging tidyup
141 Error conditions log to paniclog rather than rejectlog.
142 Debug lines prefixed by "DCC: " to remove any ambiguity.
143
eb505532
TF
144TF/03 Avoid unnecessary rebuilds of lookup-related code.
145
14c7b357
PP
146PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
147 Bug spotted by Jeremy Harris; was flawed since initial commit.
148 Would have resulted in OCSP responses post-SNI triggering an Exim
149 NULL dereference and crash.
150
94eaf700
PP
151JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
152
6f5a440a
PP
153PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
154 Bug detection, analysis and fix by Samuel Thibault.
155 Bugzilla 1331, Debian bug #698092.
156
514ee161
SC
157SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
158
6d7c6175 159
4263f395
PP
160Exim version 4.80.1
161-------------------
162
163PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
164 CVE-2012-5671
2c422e6f 165 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 166
ea722490 167
b1770b6e 168Exim version 4.80
0599f9cf
PP
169-----------------
170
171PP/01 Handle short writes when writing local log-files.
172 In practice, only affects FreeBSD (8 onwards).
173 Bugzilla 1053, with thanks to Dmitry Isaikin.
174
23c7e742
NM
175NM/01 Bugzilla 949 - Documentation tweak
176
b322aac8
NM
177NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
178 improved.
179
4a891427
NM
180NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
181
c1e794ba 182PP/02 Implemented gsasl authenticator.
b322aac8 183
97753960
PP
184PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
185
186PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
187 `pkg-config foo` for cflags/libs.
188
df6303fa
PP
189PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
190 with rest of GSASL and with heimdal_gssapi.
191
7e6a8985
PP
192PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
193 `pkg-config foo` for cflags/libs for the TLS implementation.
194
f1e05cc7 195PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
196 properties get this fed in as external SSF. A number of robustness
197 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 198
4c287009
PP
199PP/08 cyrus_sasl server now expands the server_realm option.
200
b98bb9ac
PP
201PP/09 Bugzilla 1214 - Log authentication information in reject log.
202 Patch by Jeremy Harris.
203
4a6a987a
PP
204PP/10 Added dbmjz lookup type.
205
c45dd180 206PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 207
7db8d074
PP
208PP/12 MAIL args handles TAB as well as SP, for better interop with
209 non-compliant senders.
210 Analysis and variant patch by Todd Lyons.
211
eae0036b 212NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
e0df1c83
DM
213 Bug report from Lars Müller <lars@samba.org> (via SUSE),
214 Patch from Dirk Mueller <dmueller@suse.com>
215
dec5017e
PP
216PP/13 tls_peerdn now print-escaped for spool files.
217 Observed some $tls_peerdn in wild which contained \n, which resulted
218 in spool file corruption.
219
c80c5570
PP
220PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
221 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
222 or write after TLS renegotiation, which otherwise led to messages
223 "Got SSL error 2".
224
076b11e2
PP
225TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
226 as a tracking header (ie: a signed header comes before the signature).
227 Patch from Wolfgang Breyha.
228
5407bfff
JH
229JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
230 comma-sep list; embedded commas doubled.
231
9e45c72b
PP
232JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
233
e74376d8
PP
234PP/15 LDAP: Check for errors of TLS initialisation, to give correct
235 diagnostics.
236 Report and patch from Dmitry Banschikov.
237
da3ad30d
PP
238PP/16 Removed "dont_insert_empty_fragments" fron "openssl_options".
239 Removed SSL_clear() after SSL_new() which led to protocol negotiation
240 failures. We appear to now support TLS1.1+ with Exim.
241
7be682ca
PP
242PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
243 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
244 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
245 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 246
ef840681
PP
247PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
248 NULL dereference. Report and patch from Alun Jones.
249
5bfb4cdf
PP
250PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
251 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
252 Not seeing resolver debug output on NetBSD, but suspect this is a
253 resolver implementation change.
254
c6e95d22
PP
255PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
256 Left warnings. Added "eximon gdb" invocation mode.
257
9cbad13b
PP
258PP/21 Defaulting "accept_8bitmime" to true, not false.
259
9ee44efb
PP
260PP/22 Added -bw for inetd wait mode support.
261
6a6084f8
PP
262PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
263 locate the relevant includes and libraries. Made this the default.
264
12dd53c7
PP
265PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
266 Bugzilla 1246, report and most of solution from Tomasz Kusy.
267
9e45c72b 268JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
269 This may cause build issues on older platforms.
270
17c76198
PP
271PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
272 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
273 gnutls_require_mac & gnutls_require_protocols (no longer supported).
274 Added SNI support via GnuTLS too.
af3498d6 275 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 276
53947857 277PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 278
eae0036b 279PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
280 Applied second patch from Janne, implementing suggestion to default
281 multiple-strings-in-record handling to match SPF spec.
eae0036b 282
9e45c72b 283JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 284
7390e768
PP
285PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
286 read-only, out of scope).
287 Patch from Wolfgang Breyha, report from Stuart Northfield.
288
08488c86
PP
289PP/29 Fix three issues highlighted by clang analyser static analysis.
290 Only crash-plausible issue would require the Cambridge-specific
291 iplookup router and a misconfiguration.
292 Report from Marcin Mirosław.
293
6475bd82
PP
294PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
295
81f91683
PP
296PP/31 %D in printf continues to cause issues (-Wformat=security), so for
297 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
298 As part of this, removing so much warning spew let me fix some minor
299 real issues in debug logging.
300
5779e6aa
PP
301PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
302 assignment on my part. Fixed.
303
3375e053
PP
304PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
305 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
306 Janne Snabb (who went above and beyond: thank you).
307
308PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
309 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
310 relatively easy to get wrong. Should also expose TLS library linkage
311 problems.
3375e053 312
9d26b8c0
PP
313PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
314 64-bit ${eval} (JH/03).
315
57eb9e91 316PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
317 GNU libc to support some of the 64-bit stuff, should not lead to
318 conflicts. Defined before os.h is pulled in, so if a given platform
319 needs to override this, it can.
320
16880d1a
PP
321PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
322 protection layer was required, which is not implemented.
323 Bugzilla 1254, patch from Wolfgang Breyha.
324
a799883d
PP
325PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
326 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
327 tls_dhparam take prime identifiers. Also unbreak combination of
328 OpenSSL+DH_params+TLSSNI.
329
3ecab157 330PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 331
0599f9cf 332
867fcbf5
PP
333Exim version 4.77
334-----------------
335
336PP/01 Solaris build fix for Oracle's LDAP libraries.
337 Bugzilla 1109, patch from Stephen Usher.
338
f1a29782
TF
339TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
340
ab42bd23
TK
341TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
342 whitespace trailer
867fcbf5 343
0ca0cf52
TF
344TF/02 Fix a couple more cases where we did not log the error message
345 when unlink() failed. See also change 4.74-TF/03.
346
921b12ca
TF
347TF/03 Make the exiwhat support code safe for signals. Previously Exim might
348 lock up or crash if it happened to be inside a call to libc when it
349 got a SIGUSR1 from exiwhat.
350
351 The SIGUSR1 handler appends the current process status to the process
352 log which is later printed by exiwhat. It used to use the general
353 purpose logging code to do this, but several functions it calls are
354 not safe for signals.
355
356 The new output code in the SIGUSR1 handler is specific to the process
357 log, and simple enough that it's easy to inspect for signal safety.
358 Removing some special cases also simplifies the general logging code.
359 Removing the spurious timestamps from the process log simplifies
360 exiwhat.
361
c99ce5c9
TF
362TF/04 Improved ratelimit ACL condition.
363
364 The /noupdate option has been deprecated in favour of /readonly which
365 has clearer semantics. The /leaky, /strict, and /readonly update modes
366 are mutually exclusive. The update mode is no longer included in the
367 database key; it just determines when the database is updated. (This
368 means that when you upgrde Exim will forget old rate measurements.)
369
370 Exim now checks that the per_* options are used with an update mode that
371 makes sense for the current ACL. For example, when Exim is processing a
372 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
373 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
374 must specify per_mail/readonly. If you omit the update mode it defaults to
375 /leaky where that makes sense (as before) or /readonly where required.
376
377 The /noupdate option is now undocumented but still supported for
378 backwards compatibility. It is equivalent to /readonly except that in
379 ACLs where /readonly is required you may specify /leaky/noupdate or
380 /strict/noupdate which are treated the same as /readonly.
381
382 A useful new feature is the /count= option. This is a generalization
383 of the per_byte option, so that you can measure the throughput of other
384 aggregate values. For example, the per_byte option is now equivalent
385 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
386
387 The per_rcpt option has been generalized using the /count= mechanism
388 (though it's more complicated than the per_byte equivalence). When it is
389 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
390 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
391 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
392 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
393 Note that using per_rcpt with a non-readonly update mode in more than
394 one ACL will cause the recipients to be double-counted. (The per_mail
395 and per_byte options don't have this problem.)
396
397 The handling of very low rates has changed slightly. If the computed rate
398 is less than the event's count (usually one) then this event is the first
399 after a long gap. In this case the rate is set to the same as this event's
400 count, so that the first message of a spam run is counted properly.
401
402 The major new feature is a mechanism for counting the rate of unique
403 events. The new per_addr option counts the number of different
404 recipients that someone has sent messages to in the last time period. It
405 behaves like per_rcpt if all the recipient addresses are different, but
406 duplicate recipient addresses do not increase the measured rate. Like
407 the /count= option this is a general mechanism, so the per_addr option
408 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
409 example, measure the rate that a client uses different sender addresses
410 with the options per_mail/unique=$sender_address. There are further
411 details in the main documentation.
412
3634fc25
TF
413TF/05 Removed obsolete $Cambridge$ CVS revision strings.
414
792e8a19
TF
415TF/06 Removed a few PCRE remnants.
416
5901f0ab
TF
417TF/07 Automatically extract Exim's version number from tags in the git
418 repository when doing development or release builds.
419
7f2a2a43
PP
420PP/02 Raise smtp_cmd_buffer_size to 16kB.
421 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 422
061b7ebd
PP
423PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
424 Heavily based on revision 40f9a89a from Simon Arlott's tree.
425 Bugzilla 97.
426
e12f8c32
PP
427PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
428
9e949f00 429PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
430 Bugzilla 1078. Patch from John Horne.
431
432PP/06 Stop make process more reliably on build failure.
433 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 434
555ae6af 435PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
436 Bugzilla 1089. Patch from Heiko Schlittermann.
437
438PP/08 Handle ${run} returning more data than OS pipe buffer size.
439 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 440
6f7fe114
PP
441PP/09 Handle IPv6 addresses with SPF.
442 Bugzilla 860. Patch from Wolfgang Breyha.
443
c566dd90
PP
444PP/10 GnuTLS: support TLS 1.2 & 1.1.
445 Bugzilla 1156.
89f897c3
PP
446 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
447 Bugzilla 1095.
c566dd90 448
d6cc7c78 449PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
450 New compile-time build option, EXPAND_LISTMATCH_RHS.
451 New expansion conditions, "inlist", "inlisti".
452
0d0e4455
PP
453PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
454
3399bb60 455PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
456
457PP/14 fix log_write() format string regression from TF/03.
458 Bugzilla 1152. Patch from Dmitry Isaikin.
459
0ca0cf52 460
10906672
PP
461Exim version 4.76
462-----------------
463
464PP/01 The new ldap_require_cert option would segfault if used. Fixed.
465
754a0503
PP
466PP/02 Harmonised TLS library version reporting; only show if debugging.
467 Layout now matches that introduced for other libraries in 4.74 PP/03.
468
c0c7b2da
PP
469PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
470
e97d1f08
PP
471PP/04 New "dns_use_edns0" global option.
472
084c1d8c
PP
473PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
474 Bugzilla 1098.
475
4e7ee012
PP
476PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
477 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 478
c8d52a00
PP
479TK/01 Updated PolarSSL code to 0.14.2.
480 Bugzilla 1097. Patch from Andreas Metzler.
481
54e7ce4a
PP
482PP/07 Catch divide-by-zero in ${eval:...}.
483 Fixes bugzilla 1102.
484
5ee6f336
PP
485PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
486 Bugzilla 1104.
487
c8d52a00 488TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
489 format-string attack -- SECURITY: remote arbitrary code execution.
490
491TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
492 time unintentionally subject to list matching rules, letting the header
493 cause arbitrary Exim lookups (of items which can occur in lists, *not*
494 arbitrary string expansion). This allowed for information disclosure.
495
496PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
497 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 498
10906672 499
aa097c4c
NM
500Exim version 4.75
501-----------------
502
4c9ef03a 503NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
504 Bugzilla 1073
505
7f3d9eff
TF
506TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
507 This fixes portability to compilers other than gcc, notably
508 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
509
159f52d2
TF
510TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
511 makefiles for portability to HP-UX and POSIX correctness.
512
0cc9542a
PP
513PP/01 Permit LOOKUP_foo enabling on the make command-line.
514 Also via indented variable definition in the Makefile.
515 (Debugging by Oliver Heesakkers).
516
f7274286
PP
517PP/02 Restore caching of spamd results with expanded spamd_address.
518 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
519
7b797365
PP
520PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
521 Improves build reliability. Fix from: Frank Elsner
522
caacae52
NM
523NM/02 Fix wide character breakage in the rfc2047 coding
524 Fixes bug 1064. Patch from Andrey N. Oktyabrski
525
09dcaba9
NM
526NM/03 Allow underscore in dnslist lookups
527 Fixes bug 1026. Patch from Graeme Fowler
528
bc19a55b
PP
529PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
530 Code patches from Adam Ciarcinski of NetBSD.
caacae52 531
bd4c9759
NM
532NM/04 Fixed exiqgrep to cope with mailq missing size issue
533 Fixes bug 943.
534
b72aab72
PP
535PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
536 is logged, to avoid truncation. Patch from John Horne.
537
2fe76745
PP
538PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
539 Patch from Jakob Hirsch.
540
76aa570c
PP
541PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
542 SQL string expansion failure details.
543 Patch from Andrey Oktyabrski.
544
f1e5fef5
PP
545PP/08 Bugzilla 486: implement %M datestamping in log filenames.
546 Patch from Simon Arlott.
547
4d805ee9
PP
548PP/09 New lookups functionality failed to compile on old gcc which rejects
549 extern declarations in function scope.
550 Patch from Oliver Fleischmann
551
cd59ab18
PP
552PP/10 Use sig_atomic_t for flags set from signal handlers.
553 Check getgroups() return and improve debugging.
554 Fixed developed for diagnosis in bug 927 (which turned out to be
555 a kernel bug).
556
332f5cf3
PP
557PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
558 Patch from Mark Zealey.
559
29cfeb94
PP
560PP/12 Bugzilla 1056: Improved spamd server selection.
561 Patch from Mark Zealey.
562
660242ad
PP
563PP/13 Bugzilla 1086: Deal with maildir quota file races.
564 Based on patch from Heiko Schlittermann.
565
bc4bc4c5
PP
566PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
567 Patch from Uwe Doering, sign-off by Michael Haardt.
568
2e64baa9
NM
569NM/05 Fix to spam.c to accommodate older gcc versions which dislike
570 variable declaration deep within a block. Bug and patch from
571 Dennis Davis.
572
bddd7526
PP
573PP/15 lookups-Makefile IRIX compatibilty coercion.
574
6bac1a9a
PP
575PP/16 Make DISABLE_DKIM build knob functional.
576
552193f0
NM
577NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
578 Patch by Simon Arlott
baeee2c1 579
1b587e48
TF
580TF/03 Fix valgrind.h portability to C89 compilers that do not support
581 variable argument macros. Our copy now differs from upstream.
582
aa097c4c 583
8c07b69f
TF
584Exim version 4.74
585-----------------
586
587TF/01 Failure to get a lock on a hints database can have serious
588 consequences so log it to the panic log.
589
c0ea85ab
TF
590TF/02 Log LMTP confirmation messages in the same way as SMTP,
591 controlled using the smtp_confirmation log selector.
592
0761d44e
TF
593TF/03 Include the error message when we fail to unlink a spool file.
594
0a349494
PP
595DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
596 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
597 for maintaining out-of-tree patches for some time.
598
599PP/01 Bugzilla 139: Documentation and portability issues.
600 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
601 Handle per-OS dynamic-module compilation flags.
602
fea24b2e
PP
603PP/02 Let /dev/null have normal permissions.
604 The 4.73 fixes were a little too stringent and complained about the
605 permissions on /dev/null. Exempt it from some checks.
606 Reported by Andreas M. Kirchwitz.
607
6545de78
PP
608PP/03 Report version information for many libraries, including
609 Exim version information for dynamically loaded libraries. Created
610 version.h, now support a version extension string for distributors
611 who patch heavily. Dynamic module ABI change.
612
1670ef10
PP
613PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
614 privilege escalation vulnerability whereby the Exim run-time user
615 can cause root to append content of the attacker's choosing to
616 arbitrary files.
617
c0886197
PP
618PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
619 (Wolfgang Breyha)
620
b7487bce
PP
621PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
622 If dropping privileges for untrusted macros, we disabled normal logging
623 on the basis that it would fail; for the Exim run-time user, this is not
624 the case, and it resulted in successful deliveries going unlogged.
625 Fixed. Reported by Andreas Metzler.
626
8c07b69f 627
97fd1e48 628Exim version 4.73
ed7f7860 629-----------------
97fd1e48
PP
630
631PP/01 Date: & Message-Id: revert to normally being appended to a message,
632 only prepend for the Resent-* case. Fixes regression introduced in
633 Exim 4.70 by NM/22 for Bugzilla 607.
634
6901c596
PP
635PP/02 Include check_rfc2047_length in configure.default because we're seeing
636 increasing numbers of administrators be bitten by this.
637
a8c8d6b5
JJ
638JJ/01 Added DISABLE_DKIM and comment to src/EDITME
639
77bb000f
PP
640PP/03 Bugzilla 994: added openssl_options main configuration option.
641
a29e5231
PP
642PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
643
ec5a0394 644PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 645
55c75993
PP
646PP/06 Adjust NTLM authentication to handle SASL Initial Response.
647
453a6645 648PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
649 without a peer certificate, leading to a segfault because of an
650 assumption that peers always have certificates. Be a little more
453a6645
PP
651 paranoid. Problem reported by Martin Tscholak.
652
8544e77a
PP
653PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
654 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
655 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
656 CL also introduces -bmalware, various -d+acl logging additions and
657 more caution in buffer sizes.
8544e77a 658
83e029d5
PP
659PP/09 Implemented reverse_ip expansion operator.
660
ed7f7860
PP
661PP/10 Bugzilla 937: provide a "debug" ACL control.
662
7d9f747b
PP
663PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
664
4b2241d2
PP
665PP/12 Bugzilla 973: Implement --version.
666
10385c15
PP
667PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
668
dbc4b90d
PP
669PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
670
532be449
PP
671PP/15 Bugzilla 816: support multiple condition rules on Routers.
672
6a8de854 673PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
674 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
675 ignore trailing whitespace.
6a8de854 676
5dc43717
JJ
677JJ/02 prevent non-panic DKIM error from being sent to paniclog
678
679JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
680 "exim" to be used
55c75993 681
3346ab01
PP
682PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
683 Notification from Dr Andrew Aitchison.
684
491fab4c
PP
685PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
686 ExtendedDetectionInfo response format.
687 Notification from John Horne.
688
13eb9497
PP
689PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
690 compatible.
691
692PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
693 XSL and documented dependency on system catalogs, with examples of how
694 it normally works.
695
7f36d675
DW
696DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
697 access.
698
c1d94452
DW
699DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
700 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
701 configuration file which is writeable by the Exim user or group.
702
e2f5dc15
DW
703DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
704 of configuration files to cover files specified with the -C option if
705 they are going to be used with root privileges, not just the default
706 configuration file.
707
cd25e41d
DW
708DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
709 option (effectively making it always true).
710
261dc43e
DW
711DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
712 files to be used while preserving root privileges.
713
fa32850b
DW
714DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
715 that rogue child processes cannot use them.
716
79d4bc3d
PP
717PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
718 run-time user, instead of root.
719
43236f35 720PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
721 Exim run-time user without dropping privileges.
722
fb08281f
DW
723DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
724 result string, instead of calling string_vformat() twice with the same
725 arguments.
3346ab01 726
74935b98
DW
727DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
728 for other users. Others should always drop root privileges if they use
729 -C on the command line, even for a whitelisted configure file.
730
90b6341f
DW
731DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
732
57730b52
ML
733NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
734
66581d1e 735
465e92cf
JJ
736Exim version 4.72
737-----------------
738
453a6645
PP
739JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
740 $data_path, and $header_path variables; fixed documentation bugs and
741 typos
465e92cf 742
453a6645
PP
743JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
744 exipick to access non-standard spools, including the "frozen" queue
745 (Finput)
edae0343 746
9bd3e22c
NM
747NM/01 Bugzilla 965: Support mysql stored procedures.
748 Patch from Alain Williams
749
bb576ff7
NM
750NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
751
5a1a5845
NM
752NM/03 Bugzilla 955: Documentation fix for max_rcpts.
753 Patch from Andreas Metzler
754
981a9fad
NM
755NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
756 Patch from Kirill Miazine
757
7fc497ee
NM
758NM/05 Bugzilla 671: Added umask to procmail example.
759
1a41defa
JJ
760JJ/03 installed exipick 20100323.0, fixing doc bug
761
a466095c 762NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 763 directory. Notification and patch from Dan Rosenberg.
a466095c 764
94a6bd0b
NM
765TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
766
767TK/02 Improve log output when DKIM signing operation fails.
768
769MH/01 Treat the transport option dkim_domain as a colon separated
770 list, not as a single string, and sign the message with each element,
771 omitting multiple occurences of the same signer.
772
c1b141a8
NM
773NM/07 Null terminate DKIM strings, Null initialise DKIM variable
774 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 775
b26eacf1 776NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
777 Patch by Simon Arlott
778
179c5980 779PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 780 MBX locking. Notification from Dan Rosenberg.
179c5980 781
9bd3e22c 782
7c6d71af
NM
783Exim version 4.71
784-----------------
785
7d9f747b 786TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 787
f013fb92
NM
788NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
789
0eb8eedd
NM
790NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
791
663ee6d9
NM
792NM/03 Bugzilla 847: Enable DNSDB lookup by default.
793
177ebd9b
NM
794NM/04 Bugzilla 915: Flag broken perl installation during build.
795
7c6d71af 796
210f147e
NM
797Exim version 4.70
798-----------------
799
cdd3bb85 800TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 801 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
802
803TK/02 Write list of recipients to X-Envelope-Sender header when building
804 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 805 Hirsch).
cdd3bb85
TK
806
807TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
808 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 809 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
810
811TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
812 by Mark Daniel Reidel <mr@df.eu>.
813
210f147e
NM
814NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
815 When building exim an external PCRE library is now needed -
816 PCRE is a system library on the majority of modern systems.
817 See entry on PCRE_LIBS in EDITME file.
818
deafd5b3
NM
819NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
820 conversation. Added nologin parameter to request.
7d9f747b 821 Patch contributed by Kirill Miazine.
deafd5b3 822
089793a4
TF
823TF/01 Do not log submission mode rewrites if they do not change the address.
824
5f16ca82
TF
825TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
826
dae9d94e 827NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 828 log files in place. Contributed by Roberto Lima.
dae9d94e 829
7d9f747b 830NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 831
06864c44
TF
832TF/03 Bugzilla 615: When checking the local_parts router precondition
833 after a local_part_suffix or local_part_prefix option, Exim now
834 does not use the address's named list lookup cache, since this
835 contains cached lookups for the whole local part.
836
65a7d8c3 837NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 838 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 839
23510047 840TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 841
7d9f747b 842NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 843
7d8eec3a 844NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 845 Patch provided by Jan Srzednicki.
6c588e74 846
89dec7b6
TF
847TF/05 Leading white space used to be stripped from $spam_report which
848 wrecked the formatting. Now it is preserved.
5f28a6e8 849
a99de90c
TF
850TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
851 that they are available at delivery time.
852
e2803e40
TF
853TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
854
7199e1ee
TF
855TF/08 TLS error reporting now respects the incoming_interface and
856 incoming_port log selectors.
857
e276e04b
TF
858TF/09 Produce a more useful error message if an SMTP transport's hosts
859 setting expands to an empty string.
860
ce552449 861NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 862 Patch provided by Phil Pennock.
ce552449 863
e765a0f1 864NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 865 Patch provided by Richard Godbee.
e765a0f1 866
4f054c63 867NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 868 acl_smtp_notquit, added index entry.
4f054c63 869
7d9f747b
PP
870NM/09 Bugzilla 787: Potential buffer overflow in string_format.
871 Patch provided by Eugene Bujak.
24c929a2 872
7d9f747b
PP
873NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
874 accept(). Patch provided by Maxim Dounin.
cf73943b 875
b52bc06e 876NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 877 Patch provided by Phil Pennock.
b52bc06e 878
447de4b0
NM
879NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
880
4c69d561 881NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 882 Patch provided by Brad "anomie" Jorsch.
4c69d561 883
d5c39246 884NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 885 Patch provided by Dean Brooks.
9b989985 886
0b23848a
TK
887TK/05 Add native DKIM support (does not depend on external libraries).
888
8f3414a1 889NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 890 Patch provided by Graeme Fowler.
e2aacdfd 891
fb6f955d
NM
892NM/16 Bugzilla 851: Documentation example syntax fix.
893
894NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 895
7d9f747b
PP
896NM/18 Bugzilla 894: Fix issue with very long lines including comments in
897 lsearch.
dbb0bf41 898
7d9f747b
PP
899NM/19 Bugzilla 745: TLS version reporting.
900 Patch provided by Phil Pennock.
f3766eb5 901
7d9f747b
PP
902NM/20 Bugzilla 167: bool: condition support.
903 Patch provided by Phil Pennock.
36f12725 904
7d9f747b
PP
905NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
906 clients. Patch provided by Phil Pennock.
e6060e2c 907
7d9f747b
PP
908NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
909 Patch provided by Brad "anomie" Jorsch.
5eb690a1 910
7d9f747b
PP
911NM/23 Bugzilla 687: Fix misparses in eximstats.
912 Patch provided by Heiko Schlittermann.
d5c13d66 913
7d9f747b
PP
914NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
915 Patch provided by Heiko Schlittermann.
b2335c0b 916
7d9f747b 917NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 918 plus update to original patch.
f4cd9433 919
7d9f747b 920NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 921
7d9f747b
PP
922NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
923 Patch provided by David Brownlee.
8dc71ab3 924
7d9f747b 925NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 926
7d9f747b 927NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 928
7d9f747b 929NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 930
7d9f747b 931NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 932
17792b53 933NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 934 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 935
7d9f747b
PP
936NM/33 Bugzilla 898: Transport filter timeout fix.
937 Patch by Todd Rinaldo.
52383f8f 938
91576cec 939NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 940 Patch by Serge Demonchaux.
5ca6d115 941
7d9f747b
PP
942NM/35 Bugzilla 39: Base64 decode bug fixes.
943 Patch by Jakob Hirsch.
baee9eee 944
7d9f747b 945NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 946
7d9f747b 947NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 948
7d9f747b 949NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 950
7d9f747b 951NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 952
deafd5b3 953
47db1125
NM
954Exim version 4.69
955-----------------
956
4b3504d0
TK
957TK/01 Add preliminary DKIM support. Currently requires a forked version of
958 ALT-N's libdkim that I have put here:
959 http://duncanthrax.net/exim-experimental/
960
961 Note to Michael Haardt: I had to rename some vars in sieve.c. They
962 were called 'true' and it seems that C99 defines that as a reserved
963 keyword to be used with 'bool' variable types. That means you could
964 not include C99-style headers which use bools without triggering
965 build errors in sieve.c.
966
81ea09ca
NM
967NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
968 as mailq or other aliases. Changed the --help handling significantly
969 to do whats expected. exim_usage() emits usage/help information.
970
f13cddcb
SC
971SC/01 Added the -bylocaldomain option to eximstats.
972
7d9f747b 973NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 974
7d9f747b 975NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 976
7d9f747b 977NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
978
979
eb4c0de6
PH
980Exim version 4.68
981-----------------
982
983PH/01 Another patch from the Sieve maintainer.
984
6a3bceb1
PH
985PH/02 When an IPv6 address is converted to a string for single-key lookup
986 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
987 dots are used instead of colons so that keys in lsearch files need not
988 contain colons. This was done some time before quoting was made available
989 in lsearch files. However, iplsearch files do require colons in IPv6 keys
990 (notated using the quote facility) so as to distinguish them from IPv4
991 keys. This meant that lookups for IP addresses in host lists did not work
992 for iplsearch lookups.
993
994 This has been fixed by arranging for IPv6 addresses to be expressed with
995 colons if the lookup type is iplsearch. This is not incompatible, because
996 previously such lookups could never work.
997
998 The situation is now rather anomolous, since one *can* have colons in
999 ordinary lsearch keys. However, making the change in all cases is
1000 incompatible and would probably break a number of configurations.
1001
2e30fa9d
TK
1002TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
1003 version.
1004
0806a9c5
MH
1005MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
1006 conversion specification without a maximum field width, thereby enabling
1007 a rogue spamd server to cause a buffer overflow. While nobody in their
1008 right mind would setup Exim to query an untrusted spamd server, an
1009 attacker that gains access to a server running spamd could potentially
1010 exploit this vulnerability to run arbitrary code as the Exim user.
1011
ae276964
TK
1012TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
1013 $primary_hostname instead of what libspf2 thinks the hosts name is.
1014
0f2cbd1b
MH
1015MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
1016 a directory entry by the name of the lookup key. Previously, if a
1017 symlink pointed to a non-existing file or a file in a directory that
1018 Exim lacked permissions to read, a lookup for a key matching that
1019 symlink would fail. Now it is enough that a matching directory entry
1020 exists, symlink or not. (Bugzilla 503.)
1021
2b85bce7
PH
1022PH/03 The body_linecount and body_zerocount variables are now exported in the
1023 local_scan API.
1024
93655c46
PH
1025PH/04 Added the $dnslist_matched variable.
1026
6c512171
PH
1027PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
1028 This means they are set thereafter only if the connection becomes
1029 encrypted.
1030
1031PH/06 Added the client_condition to authenticators so that some can be skipped
1032 by clients under certain conditions.
1033
aa6dc513
PH
1034PH/07 The error message for a badly-placed control=no_multiline_responses left
1035 "_responses" off the end of the name.
1036
a96603a0
PH
1037PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
1038
8f240103
PH
1039PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
1040 (without spaces) instead of just copying the configuration text.
1041
1042PH/10 Added the /noupdate option to the ratelimit ACL condition.
1043
d677b2f2
PH
1044PH/11 Added $max_received_linelength.
1045
d52120f2
PH
1046PH/12 Added +ignore_defer and +include_defer to host lists.
1047
64f2600a
PH
1048PH/13 Installed PCRE version 7.2. This needed some changes because of the new
1049 way in which PCRE > 7.0 is built.
1050
8669f003
PH
1051PH/14 Implemented queue_only_load_latch.
1052
a4dc33a8
PH
1053PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
1054 MAIL command. The effect was to mangle the value on 64-bit systems.
1055
d6a60c0f
PH
1056PH/16 Another patch from the Sieve maintainer.
1057
8f128379
PH
1058PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
1059
8932dffe
PH
1060PH/18 If a system quota error occurred while trying to create the file for
1061 a maildir delivery, the message "Mailbox is full" was not appended to the
1062 bounce if the delivery eventually timed out. Change 4.67/27 below applied
1063 only to a quota excession during the actual writing of the file.
d6a60c0f 1064
ddea74fa 1065PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
1066 characters?) which causes problems in log lines. The DN values are now
1067 passed through string_printing() before being added to log lines.
1068
ddea74fa 1069PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
1070 and InterBase are left for another time.)
1071
ddea74fa
PH
1072PH/21 Added message_body_newlines option.
1073
ce9f225c
PH
1074PH/22 Guard against possible overflow in moan_check_errorcopy().
1075
19897d52
PH
1076PH/23 POSIX allows open() to be a macro; guard against that.
1077
bc64a74d
PH
1078PH/24 If the recipient of an error message contained an @ in the local part
1079 (suitably quoted, of course), incorrect values were put in $domain and
1080 $local_part during the evaluation of errors_copy.
1081
eb4c0de6 1082
b4ed4da0
PH
1083Exim version 4.67
1084-----------------
1085
22ad45c9
MH
1086MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
1087 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
1088 Jan Srzednicki.
1089
b4ed4da0
PH
1090PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
1091 issue a MAIL command.
1092
431b7361
PH
1093PH/02 In an ACL statement such as
1094
1095 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
1096
1097 if a client was not listed at all, or was listed with a value other than
1098 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
1099 the condition was not true (as it should be), so access was not denied.
1100 The bug was that the ! inversion was incorrectly passed on to the second
1101 item. This has been fixed.
1102
1103PH/03 Added additional dnslists conditions == and =& which are different from
1104 = and & when the dns lookup returns more than one IP address.
1105
83da1223
PH
1106PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
1107 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
1108
54fc8428
PH
1109PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
1110 FSYNC, which compiles an option called disable_fsync that allows for
1111 bypassing fsync(). The documentation is heavily laced with warnings.
1112
34c5e8dd
SC
1113SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
1114
bbe15da8
PH
1115PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
1116 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
1117 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
1118 including adding "make clean"; (3) Added -fPIC when compiling the test
1119 dynamically loaded module, to get rid of a warning.
1120
0e8a9471
MH
1121MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
1122 message fails, move_frozen_messages = true and ignore_bounce_errors_after
1123 = 0s. The bug is otherwise harmless.
1124
f0872424
PH
1125PH/07 There was a bug in the dovecot authenticator such that the value of
1126 $auth1 could be overwritten, and so not correctly preserved, after a
1127 successful authentication. This usually meant that the value preserved by
1128 the server_setid option was incorrect.
1129
b01dd148
PH
1130PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
1131
6bf342e1
PH
1132PH/09 Installed PCRE release 7.0.
1133
273f34d0
PH
1134PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
1135 run for batched SMTP input. It is now run at the start of every message
1136 in the batch. While fixing this I discovered that the process information
1137 (output by running exiwhat) was not always getting set for -bs and -bS
1138 input. This is fixed, and it now also says "batched" for BSMTP.
1139
cf8b11a5
PH
1140PH/11 Added control=no_pipelining.
1141
41c7c167
PH
1142PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
1143 patch, slightly modified), and move the expansion of helo_data till after
1144 the connection is made in the smtp transport (so it can use these
1145 values).
1146
9c57cbc0
PH
1147PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
1148
f3f065bb
PH
1149PH/14 Added log_selector = +pid.
1150
047bdd8c
PH
1151PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
1152
0ce9abe6
PH
1153PH/16 Add ${if forany and ${if forall.
1154
0e22dfd1
PH
1155PH/17 Added dsn_from option to vary the From: line in DSNs.
1156
4c590bd1
PH
1157PH/18 Flush SMTP output before performing a callout, unless control =
1158 no_callout_flush is set.
1159
09945f1e
PH
1160PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
1161 was true (the default) a successful delivery failed to delete the retry
1162 item, thus causing premature timeout of the address. The bug is now
1163 fixed.
1164
c51b8e75
PH
1165PH/20 Added hosts_avoid_pipelining to the smtp transport.
1166
e28326d8
PH
1167PH/21 Long custom messages for fakedefer and fakereject are now split up
1168 into multiline reponses in the same way that messages for "deny" and
1169 other ACL rejections are.
1170
75b1493f
PH
1171PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
1172 with slight modification.
1173
7c5214ec
PH
1174PH/23 Applied sieve patches from the maintainer "tracking the latest notify
1175 draft, changing the syntax and factoring some duplicate code".
1176
4311097e
PH
1177PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
1178 for deliveries of the second and subsequent messages over the same SMTP
1179 connection.
1180
29f89cad
PH
1181PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
1182 ${reduce, with only minor "tidies".
1183
5e687460
SC
1184SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
1185
c3611384
PH
1186PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
1187 expansion side effects.
1188
5a11a7b4
PH
1189PH/27 When a message times out after an over-quota error from an Exim-imposed
1190 quota, the bounce message says "mailbox is full". This message was not
1191 being given when it was a system quota that was exceeded. It now should
1192 be the same.
1193
0e20aff9
MH
1194MH/03 Made $recipients available in local_scan(). local_scan() already has
1195 better access to the recipient list through recipients_list[], but
1196 $recipients can be useful in postmaster-provided expansion strings.
1197
ca86f471
PH
1198PH/28 The $smtp_command and $smtp_command_argument variables were not correct
1199 in the case of a MAIL command with additional options following the
1200 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
1201 were accidentally chopped off.
1202
a14e5636
PH
1203PH/29 SMTP synchronization checks are implemented when a command is read -
1204 there is a check that no more input is waiting when there shouldn't be
1205 any. However, for some commands, a delay in an ACL can mean that it is
1206 some time before the response is written. In this time, more input might
1207 arrive, invalidly. So now there are extra checks after an ACL has run for
1208 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
1209 pipelining has not been advertised.
1210
ec95d1a6
PH
1211PH/30 MH's patch to allow iscntrl() characters to be list separators.
1212
42855d71
PH
1213PH/31 Unlike :fail:, a custom message specified with :defer: was not being
1214 returned in the SMTP response when smtp_return_error_details was false.
1215 This has been fixed.
1216
57c2c631
PH
1217PH/32 Change the Dovecot authenticator to use read() and write() on the socket
1218 instead of the C I/O that was originally supplied, because problems were
1219 reported on Solaris.
1220
58c01c94
PH
1221PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
1222 Exim which did not show up earlier: it was assuming that a call to
1223 SSL_CTX_set_info_callback() might give an error value. In fact, there is
1224 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
1225 was a macro that became an assignment, so it seemed to work. This has
1226 changed to a proper function call with a void return, hence the compile
1227 error. Exim's code has been fixed.
1228
dee5a20a
PH
1229PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
1230 cpus.
1231
d2ee6114
PH
1232PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
1233
b2d5182b
PH
1234PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
1235
79749a79
PH
1236PH/37 If a message is not accepted after it has had an id assigned (e.g.
1237 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
1238 "Completed" line in the log. When some messages of this type were
1239 selected by exigrep, they were listed as "not completed". Others were
1240 picked up by some special patterns. I have improved the selection
1241 criteria to be more general.
79749a79 1242
c456d9bb
PH
1243PH/38 The host_find_failed option in the manualroute router can now be set
1244 to "ignore", to completely ignore a host whose IP address cannot be
1245 found. If all hosts are ignored, the behaviour is controlled by the new
1246 host_all_ignored option.
1247
cd9868ec
PH
1248PH/39 In a list of hosts for manualroute, if one item (either because of multi-
1249 homing or because of multiple MX records with /mx) generated more than
1250 one IP address, and the following item turned out to be the local host,
1251 all the secondary addresses of the first item were incorrectly removed
1252 from the list, along with the local host and any following hosts (which
1253 is what is supposed to happen).
1254
ebeaf996
PH
1255PH/40 When Exim receives a message, it writes the login name, uid, and gid of
1256 whoever called Exim into the -H file. In the case of the daemon it was
1257 behaving confusingly. When first started, it used values for whoever
1258 started the daemon, but after a SIGHUP it used the Exim user (because it
1259 calls itself on a restart). I have changed the code so that it now always
1260 uses the Exim user.
1261
2679d413
PH
1262PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
1263 message are rejected with the same error (e.g. no authentication or bad
1264 sender address), and a DATA command is nevertheless sent (as can happen
1265 with PIPELINING or a stupid MUA), the error message that was given to the
1266 RCPT commands is included in the rejection of the DATA command. This is
1267 intended to be helpful for MUAs that show only the final error to their
1268 users.
1269
84024b72
PH
1270PH/42 Another patch from the Sieve maintainer.
1271
8005d38e
SC
1272SC/02 Eximstats - Differentiate between permanent and temporary rejects.
1273 Eximstats - Fixed some broken HTML links and added missing column headers
1274 (Jez Hancock).
1275 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
1276 columns for Rejects, Temp Rejects, Ham, and Spam rows.
1277
3298c6c6
SC
1278SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
1279
a43a27c5
PH
1280PH/43 Yet another patch from the Sieve maintainer.
1281
58eb016e 1282PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
1283 the response to the final '.' that terminates a message, but only in the
1284 case where the client has not sent further data following the '.'
1285 (unfortunately, this is allowed). However, in many cases there won't be
1286 any further data because there won't be any more messages to send. A call
1287 to select() can be used: if it shows that the input is "ready", there is
1288 either input waiting, or the socket has been closed. An attempt to read
1289 the next input character can distinguish the two cases. Previously, Exim
58eb016e 1290 would have sent an OK response which the client would never have see.
563b63fa
PH
1291 This could lead to message repetition. This fix should cure that, at
1292 least in a lot of common cases.
58eb016e 1293
b43a74ea
PH
1294PH/45 Do not advertise STARTTLS in response to HELP unless it would be
1295 advertised in response to EHLO.
1296
b4ed4da0 1297
5dd1517f
PH
1298Exim version 4.66
1299-----------------
1300
1301PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
1302 fixed by 4.65/MH/01 (is this a record?) are fixed:
1303
1304 (i) An empty string was always treated as zero by the numeric comparison
1305 operators. This behaviour has been restored.
1306
1307 (ii) It is documented that the numeric comparison operators always treat
1308 their arguments as decimal numbers. This was broken in that numbers
1309 starting with 0 were being interpreted as octal.
1310
1311 While fixing these problems I realized that there was another issue that
1312 hadn't been noticed. Values of message_size_limit (both the global option
1313 and the transport option) were treated as octal if they started with 0.
1314 The documentation was vague. These values are now always treated as
1315 decimal, and I will make that clear in the documentation.
1316
1317
93cfa765
TK
1318Exim version 4.65
1319-----------------
1320
1321TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
1322 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
1323 versions. (#438)
1324
d6066548
MH
1325MH/01 Don't check that the operands of numeric comparison operators are
1326 integers when their expansion is in "skipping" mode (fixes bug
1327 introduced by 4.64-PH/07).
1328
4362ff0d
PH
1329PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
1330 child addresses, Exim now panics and dies. Previously, because the count
1331 is held in a short int, deliveries were likely to be lost. As such a
1332 large number of recipients for a single message is ridiculous
1333 (performance will be very, very poor), I have chosen to impose a limit
1334 rather than extend the field.
1335
93cfa765 1336
944e9e9c
TF
1337Exim version 4.64
1338-----------------
aa41d2de 1339
21d74bd9
TK
1340TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
1341 leftover -K file (the existence of which was triggered by #402).
1342 While we were at it, introduced process PID as part of the -K
1343 filename. This should rule out race conditions when creating
1344 these files.
1345
1346TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
1347 processing considerably. Previous code took too long for large mails,
1348 triggering a timeout which in turn triggers #401.
1349
1350TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
1351 in the DK code in transports.c. sendfile() is not really portable,
1352 hence the _LINUX specificness.
944e9e9c
TF
1353
1354TF/01 In the add_headers option to the mail command in an Exim filter,
1355 there was a bug that Exim would claim a syntax error in any
1356 header after the first one which had an odd number of characters
1357 in the field name.
1358
2b1c6e3a
PH
1359PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
1360 callout verification, Exim cached a "reject" for the entire domain. This
1361 is correct for most verifications, but it is not correct for a recipient
1362 verification with use_sender or use_postmaster set, because in that case
1363 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
1364 case of MAIL FROM:<> rejection from other early rejections (e.g.
1365 rejection of HELO). When verifying a recipient using a non-null MAIL
1366 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1367 Whatever the result of the callout, the value of the domain cache is
1368 left unchanged (for any other kind of callout, getting as far as trying
1369 RCPT means that the domain itself is ok).
1370
1f872c80
PH
1371PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1372 gcc 4.1.1 threw up.
1373
1374PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1375 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1376 session, the daemon ignores ECONNECT errors and logs others; it now
1377 ignores EPIPE as well.
1378
d203e649
PH
1379PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1380 (quoted-printable decoding).
1381
cc2ed8f7 1382PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1383 later the small subsequent patch to fix an introduced bug.
f951fd57 1384
ddfcd446
PH
1385PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1386
d45b1de8
PH
1387PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1388
1389PH/08 An error is now given if message_size_limit is specified negative.
1390
38a0a95f 1391PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1392 to be given (somewhat) arbitrary names.
38a0a95f 1393
a2405d83
JJ
1394JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1395 in 4.64-PH/09.
1396
1397JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1398 miscellaneous code fixes
1399
6ea85e9a
PH
1400PH/10 Added the log_reject_target ACL modifier to specify where to log
1401 rejections.
1402
26da7e20
PH
1403PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1404 hostname. This is wrong, because it relates to the incoming message (and
1405 probably the interface on which it is arriving) and not to the outgoing
1406 callout (which could be using a different interface). This has been
1407 changed to use the value of the helo_data option from the smtp transport
1408 instead - this is what is used when a message is actually being sent. If
1409 there is no remote transport (possible with a router that sets up host
1410 addresses), $smtp_active_hostname is used.
6ea85e9a 1411
14aa5a05 1412PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1413 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1414 (a) The code assumed that strncpy() returns a negative number on buffer
1415 overflow, which isn't the case. Replaced with Exim's string_format()
1416 function.
1417 (b) There were several signed/unsigned issues. I just did the minimum
1418 hacking in of casts. There is scope for a larger refactoring.
1419 (c) The code used strcasecmp() which is not a standard C function.
1420 Replaced with Exim's strcmpic() function.
1421 (d) The code set only $1; it now sets $auth1 as well.
1422 (e) A simple test gave the error "authentication client didn't specify
1423 service in request". It would seem that Dovecot has changed its
1424 interface. Fortunately there's a specification; I followed it and
1425 changed what the client sends and it appears to be working now.
1426
ff75a1f7
PH
1427PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1428 decoding.
1429
e6f6568e
PH
1430PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1431 address A is aliased to B and C, where B exists and C does not. Without
1432 -v the output is "A verified" because verification stops after a
1433 successful redirection if more than one address is generated. However,
1434 with -v the child addresses are also verified. Exim was outputting "A
1435 failed to verify" and then showing the successful verification for C,
1436 with its parentage. It now outputs "B failed to verify", showing B's
1437 parentage before showing the successful verification of C.
1438
d6f6e0dc
PH
1439PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1440 look up a TXT record in a specific list after matching in a combined
1441 list.
1442
322050c2
PH
1443PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1444 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1445 they consult the DNS. I had assumed they would set it the way they
1446 wanted; and indeed my experiments on Linux seem to show that in some
1447 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1448 To be on the safe side, however, I have now made the interface to
1449 host_find_byname() similar to host_find_bydns(), with an argument
1450 containing the DNS resolver options. The host_find_byname() function now
1451 sets these options at its start, just as host_find_bydns() does. The smtp
1452 transport options dns_qualify_single and dns_search_parents are passed to
1453 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1454 of host_find_byname() use the default settings of RES_DEFNAMES
1455 (qualify_single) but not RES_DNSRCH (search_parents).
1456
08955dd3
PH
1457PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1458 spool_read_header() do less string testing, by means of a preliminary
1459 switch on the second character of optional "-foo" lines. (This is
1460 overdue, caused by the large number of possibilities that now exist.
1461 Originally there were few.) While I was there, I also converted the
1462 str(n)cmp tests so they don't re-test the leading "-" and the first
1463 character, in the hope this might squeeze out yet more improvement.
1464
1eccaa59
PH
1465PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1466 flag allowing group syntax was set by the header_syntax check but not
1467 turned off, possible causing trouble later; (2) The flag was not being
1468 set at all for the header_verify test, causing "group"-style headers to
1469 be rejected. I have now set it in this case, and also caused header_
1470 verify to ignore an empty address taken from a group. While doing this, I
1471 came across some other cases where the code for allowing group syntax
1472 while scanning a header line wasn't quite right (mostly, not resetting
1473 the flag correctly in the right place). These bugs could have caused
1474 trouble for malformed header lines. I hope it is now all correct.
1475
602e59e5
PH
1476PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1477 with the "reply" argument non-NULL. The code, however (which originally
1478 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1479 but it didn't always do it. This confused somebody who was copying the
1480 code for some other use. I have removed all the tests.
1481
411ef850
PH
1482PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1483 feature that was used to support insecure browsers during the U.S. crypto
1484 embargo. It requires special client support, and Exim is probably the
1485 only MTA that supported it -- and would never use it because real RSA is
1486 always available. This code has been removed, because it had the bad
1487 effect of slowing Exim down by computing (never used) parameters for the
1488 RSA_EXPORT functionality.
1489
7befa435
PH
1490PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1491 authenticator to fail if there's a tab character in the incoming data
1492 (there should never be unless someone is messing about, as it's supposed
1493 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1494 if the connection is using TLS or if the remote IP is the same as the
1495 local IP, and the "valid-client-cert option" if a client certificate has
1496 been verified.
1497
48da4259 1498PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1499 authenticators. This can be used for authorization after authentication
1500 succeeds. (In the case of plaintext, it servers for both authentication
1501 and authorization.)
1502
48da4259
PH
1503PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1504 if any retry times were supplied.
1505
d1d5595c
PH
1506PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1507 connection, where there is no client IP address to check. In this
1508 situation, the verify now always succeeds.
1509
0ef732d9
PH
1510PH/25 Applied John Jetmore's -Mset patch.
1511
328895cc
PH
1512PH/26 Added -bem to be like -Mset, but loading a message from a file.
1513
fd700877
PH
1514PH/27 In a string expansion for a processed (not raw) header when multiple
1515 headers of the same name were present, leading whitespace was being
1516 removed from all of them, but trailing whitespace was being removed only
1517 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1518 before concatenation. Completely empty headers in a concatenation (as
1519 before) are ignored.
fd700877 1520
8dce1a6f
PH
1521PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1522 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1523
17af4a17
PH
1524PH/29 [Removed. This was a change that I later backed out, and forgot to
1525 correct the ChangeLog entry (that I had efficiently created) before
1526 committing the later change.]
f6c332bd
PH
1527
1528PH/30 Exim was sometimes attempting to deliver messages that had suffered
1529 address errors (4xx response to RCPT) over the same connection as other
1530 messages routed to the same hosts. Such deliveries are always "forced",
1531 so retry times are not inspected. This resulted in far too many retries
1532 for the affected addresses. The effect occurred only when there were more
1533 hosts than the hosts_max_try setting in the smtp transport when it had
1534 the 4xx errors. Those hosts that it had tried were not added to the list
1535 of hosts for which the message was waiting, so if all were tried, there
1536 was no problem. Two fixes have been applied:
1537
1538 (i) If there are any address or message errors in an SMTP delivery, none
1539 of the hosts (tried or untried) are now added to the list of hosts
1540 for which the message is waiting, so the message should not be a
1541 candidate for sending over the same connection that was used for a
1542 successful delivery of some other message. This seems entirely
1543 reasonable: after all the message is NOT "waiting for some host".
1544 This is so "obvious" that I'm not sure why it wasn't done
1545 previously. Hope I haven't missed anything, but it can't do any
1546 harm, as the worst effect is to miss an optimization.
1547
1548 (ii) If, despite (i), such a delivery is accidentally attempted, the
1549 routing retry time is respected, so at least it doesn't keep
1550 hammering the server.
1551
c1114884
PH
1552PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1553 in ${readsocket because some servers need this prod.
1554
7a0743eb
PH
1555PH/32 Added some extra debug output when updating a wait-xxx database.
1556
0d85fa3f
PH
1557PH/33 The hint "could be header name not terminated by colon", which has been
1558 given for certain expansion errors for a long time, was not being given
1559 for the ${if def:h_colon_omitted{... case.
1560
1bf43b78
PH
1561PH/34 The spec says: "With one important exception, whenever a domain list is
1562 being scanned, $domain contains the subject domain." There was at least
1563 one case where this was not true.
1564
520de300
PH
1565PH/35 The error "getsockname() failed: connection reset by peer" was being
1566 written to the panic log as well as the main log, but it isn't really
1567 panic-worthy as it just means the connection died rather early on. I have
1568 removed the panic log writing for the ECONNRESET error when getsockname()
1569 fails.
1570
48c7f9e2
PH
1571PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1572 runs only) independently of the message's sender address. This meant
1573 that, if the 4xx error was in fact related to the sender, a different
1574 message to the same recipient with a different sender could confuse
1575 things. In particualar, this can happen when sending to a greylisting
1576 server, but other circumstances could also provoke similar problems.
1577 I have changed the default so that the retry time for these errors is now
1578 based a combination of the sender and recipient addresses. This change
1579 can be overridden by setting address_retry_include_sender=false in the
1580 smtp transport.
1581
99ea1c86
PH
1582PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1583 remote server are returned as part of bounce messages. This was not
1584 happening for LMTP over a pipe (the lmtp transport), but now it is the
1585 same for both kinds of LMTP.
1586
a2042e78
PH
1587PH/38 Despite being documented as not happening, Exim was rewriting addresses
1588 in header lines that were in fact CNAMEs. This is no longer the case.
1589
4fbcfc2e
PH
1590PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1591 and queue runs started by the daemon processed all messages. This has
1592 been fixed so that -R and -S can now usefully be given with -q<time>.
1593
aa41d2de
PH
1594PH/40 Import PCRE release 6.7 (fixes some bugs).
1595
af561417
PH
1596PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1597
3cc66b45
PH
1598PH/42 Give an error if -q is specified more than once.
1599
194cc0e4
PH
1600PH/43 Renamed the variables $interface_address and $interface_port as
1601 $received_ip_address and $received_port, to make it clear that these
1602 values apply to message reception, and not to the outgoing interface when
1603 a message is delivered. (The old names remain recognized, of course.)
1604
a401ddaa
PH
1605PH/44 There was no timeout on the connect() call when using a Unix domain
1606 socket in the ${readsocket expansion. There now is.
1607
4e88a19f
PH
1608PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1609 be meaningful with "accept".
1610
d7d7b289
SC
1611SC/01 Eximstats V1.43
1612 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1613
1614SC/02 Eximstats V1.44
1615 Use a glob alias rather than an array ref in the generated
1616 parser. This improves both readability and performance.
1617
1618SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1619 Collect SpamAssassin and rejection statistics.
1620 Don't display local sender or destination tables unless
1621 there is data to show.
1622 Added average volumes into the top table text output.
1623
1624SC/04 Eximstats V1.46
1625 Collect data on the number of addresses (recipients)
1626 as well as the number of messages.
1627
1628SC/05 Eximstats V1.47
1629 Added 'Message too big' to the list of mail rejection
1630 reasons (thanks to Marco Gaiarin).
1631
1632SC/06 Eximstats V1.48
1633 Mainlog lines which have GMT offsets and are too short to
1634 have a flag are now skipped.
1635
1636SC/07 Eximstats V1.49 (Alain Williams)
1637 Added the -emptyok flag.
1638
1639SC/08 Eximstats V1.50
1640 Fixes for obtaining the IP address from reject messages.
1641
0ea2a468
JJ
1642JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1643 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1644 whitesspace changes from 4.64-PH/27
1645
1646JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1647 match 4.64-PH/13
1648
1649JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1650 are found, allow negative numbers in numeric criteria)
1651
1652JJ/06 exipick.20061117.2, added new $message_body_missing variable
1653
1654JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1655 to match changes made in 4.64-PH/43
1656
8a10f5a4
PH
1657PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1658
30e18802
PH
1659PH/47 Put in an explicit test for a DNS lookup of an address record where the
1660 "domain" is actually an IP address, and force a failure. This locks out
1661 those revolvers/nameservers that support "A-for-A" lookups, in
1662 contravention of the specifications.
1663
55728a4f
PH
1664PH/48 When a host name was looked up from an IP address, and the subsequent
1665 forward lookup of the name timed out, the host name was left in
1666 $sender_host_name, contrary to the specification.
d7d7b289 1667
d7837193
PH
1668PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1669 restricted to single-key lookups, Exim was not diagnosing an error if
1670 * or *@ was used with a query-style lookup.
1671
87054a31
PH
1672PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1673
ea2c01d2
MH
1674MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1675 long ago, but noone interested enough thought of it. Let's just say that
1676 the "1.1" means that there are some new functions that weren't there at
1677 some point in the past.
1678
e4fa6968
PH
1679PH/51 Error processing for expansion failure of helo_data from an smtp
1680 transport during callout processing was broken.
1681
56f5d9bd
PH
1682PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1683 tested/used via the -bh/-bhc/-bs options.
1684
922e1c28
PH
1685PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1686 bug, fixed in subsequent PCRE releases).
1687
21eb6e72
PH
1688PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1689 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1690
a0540757
PH
1691PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1692
944e9e9c 1693
478be7b0
SC
1694Exim version 4.63
1695-----------------
1696
1697SC/01 Use a glob alias rather than an array ref in eximstats generated
1698 parser. This improves both readability and performance.
1699
1700SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1701 Don't display local sender or destination tables in eximstats unless
1702 there is data to show.
1703 Added average volumes into the eximstats top table text output.
1704
1705SC/03 Collect data on the number of addresses (recipients) as well
1706 as the number of messages in eximstats.
1707
2b965a65
TF
1708TF/01 Correct an error in the documentation for the redirect router. Exim
1709 does (usually) call initgroups() when daemonizing.
478be7b0 1710
45b91596
PH
1711TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1712 with consistent privilege compared to when running as a daemon.
478be7b0 1713
c59f5781
TF
1714TF/03 Note in the spec that $authenticated_id is not set for local
1715 submissions from trusted users.
1716
90fc3069
TF
1717TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1718 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1719
6083aca0
TF
1720TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1721 by adding some example configuration directives to the default
1722 configuration file. A little bit of work is required to uncomment the
1723 directives and define how usernames and passwords are checked, but
1724 there is now a framework to start from.
1725
765b530f
PH
1726PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1727 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1728 without this. I don't know how relevant this is to other LDAP libraries.
1729
4e167a8c
PH
1730PH/02 Add the verb name to the "unknown ACL verb" error.
1731
4608d683
PH
1732PH/03 Magnus Holmgren's patch for filter_prepend_home.
1733
b8dc3e4a
PH
1734PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1735
5418e93b
PH
1736PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1737 directory not expanded when it should be if an expanded home directory
1738 was set for the address (which is overridden by the transport).
1739
b4a9bda2
PH
1740PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1741 libradius.
1742
45b91596
PH
1743PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1744 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1745 because it is too late at that time, and has no effect.
1746
5547e2c5
PH
1747PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1748 security issue with \' (bugzilla #107). I could not use the
1749 PQescapeStringConn() function, because it needs a PGconn value as one of
1750 its arguments.
1751
dbcef0ea
PH
1752PH/08 When testing addresses using -bt, indicate those final addresses that
1753 are duplicates that would not cause an additional delivery. At least one
1754 person was confused, thinking that -bt output corresponded to deliveries.
1755 (Suppressing duplicates isn't a good idea as you lose the information
1756 about possibly different redirections that led to the duplicates.)
1757
25257489
PH
1758PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1759 systems where poll() doesn't work, in particular OS X.
1760
c816d124
PH
1761PH/10 Added more information to debugging output for retry time not reached.
1762
a9ccd69a
PH
1763PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1764 operations in malware.c.
1765
75fa1910
PH
1766PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1767 signatures.
1768
a7d7aa58
PH
1769PH/13 If write_rejectlog was set false when logging was sent to syslog with
1770 syslog_duplication set false, log lines that would normally be written
1771 both the the main log and to the reject log were not written to syslog at
1772 all.
1773
42119b09
PH
1774PH/14 In the default configuration, change the use of "message" in ACL warn
1775 statements to "add_header".
1776
41609df5
PH
1777PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1778 not followed by a command (e.g. "seen endif").
1779
a5bd321b
PH
1780PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1781 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1782 latter.
1783
e85a7ad5 1784PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1785 so that it is now:
1786
e85a7ad5
PH
1787 ${if or { \
1788 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1789 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1790 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1791 }{no}{yes}}
1792
e85a7ad5
PH
1793 The Auto-Submitted: and various List- headers are standardised, whereas I
1794 don't think Precedence: ever was.
5dff5817 1795
d8fe1c03
PH
1796PH/18 Refactored debugging code in route_finduser() to show more information,
1797 in particular, the error code if getpwnam() issues one.
1798
16282d2b
PH
1799PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1800 This is apparently needed in addition to the PH/07 change above to avoid
1801 any possible encoding problems.
1802
35d40a98
PH
1803PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1804 but not after initializing Perl.
1805
034d99ab
PH
1806PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1807 output them only if debugging. By default they are written stderr,
1808 apparently, which is not desirable.
1809
6ec97b1b
PH
1810PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1811 queries.
1812
e22ca4ac
JJ
1813JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1814 --not options
1815
1816JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1817
33d73e3b
PH
1818PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1819 authenticated or an ident call has been made. Suppress the default
1820 values for $authenticated_id and $authenticated_sender (but permit -oMai
1821 and -oMas) when testing with -bh.
1822
9ecb03f3
PH
1823PH/24 Re-jigged the order of the tests in the default configuration so that the
1824 tests for valid domains and recipients precede the DNS black list and CSA
1825 tests, on the grounds that those ones are more expensive.
1826
084efe8d
PH
1827PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1828 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1829 This bug exists in every version of Exim that I still have, right back to
1830 0.12.
1831
366fc9f0
PH
1832PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1833 However, an attempt to turn on case-sensitivity in a regex key by
1834 including (?-i) didn't work because the subject string was already
1835 lowercased, and the effects were non-intuitive. It turns out that a
1836 one-line patch can be used to allow (?-i) to work as expected.
1837
c59f5781 1838
c887c79e
TF
1839Exim version 4.62
1840-----------------
1841
1842TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1843 other effects) broke the use of negated acl sub-conditions.
1844
1cce3af8
PH
1845PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1846 patch).
1847
afb3eaaf
PH
1848PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1849 "Deny" causes Exim to reject the incoming connection with a 554 error.
1850 Unfortunately, if there is a major crisis, such as a disk failure,
1851 tcp-wrappers gives "deny", whereas what one would like would be some
1852 kind of temporary error. A kludge has been added to help with this.
1853 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1854 554 error is used if errno is still zero or contains ENOENT (which occurs
1855 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1856 451 error is used.
1857
e173618b
PH
1858PH/03 Add -lutil to the default FreeBSD LIBS setting.
1859
dd16e114
PH
1860PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1861 errors. Otherwise a message that provokes a temporary error (when other
1862 messages do not) can cause a whole host to time out.
1863
f7fd3850
PH
1864PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1865 addresses were routed directly to files or pipes from a redirect router.
1866 File deliveries just didn't batch; pipe deliveries might have suffered
1867 odd errors.
1868
d87df92c
PH
1869PH/06 A failure to get a lock for a hints database would erroneously always say
1870 "Failed to get write lock", even when it was really a read lock.
1871
7e9f683d
PH
1872PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1873 of 0600. This has been changed to use the value of the lockfile_mode
1874 option (which defaults to 0600).
1875
bfad5236
PH
1876PH/08 Applied small patch from the Sieve maintainer.
1877
01c490df
PH
1878PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1879 folder from quota calculations, a direct delivery into this folder messed
1880 up the contents of the maildirsize file. This was because the regex was
1881 used only to exclude .Trash (or whatever) when the size of the mailbox
1882 was calculated. There was no check that a delivery was happening into an
1883 excluded directory. This bug has been fixed by ignoring all quota
1884 processing for deliveries into excluded directories.
1885
d6629cdc
PH
1886PH/10 Added the maildirfolder_create_regex option to appendfile.
1887
1cce3af8 1888
214e2000
PH
1889Exim version 4.61
1890-----------------
1891
1892PH/01 The code for finding all the local interface addresses on a FreeBSD
1893 system running IPv6 was broken. This may well have applied to all BSD
1894 systems, as well as to others that have similar system calls. The broken
1895 code found IPv4 interfaces correctly, but gave incorrect values for the
1896 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1897 that it would not match correctly against @[] and not recognize the IPv6
1898 addresses as local.
1899
f9daeae0
PH
1900PH/02 The ipliteral router was not recognizing addresses of the form user@
1901 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1902
7e66e54d
PH
1903PH/03 Added disable_ipv6.
1904
c8ea1597
PH
1905PH/04 Changed $reply_address to use the raw form of the headers instead of the
1906 decoded form, because it is most often used to construct To: headers
1907 lines in autoreplies, and the decoded form may well be syntactically
1908 invalid. However, $reply_address has leading white space removed, and all
1909 newlines turned into spaces so that the autoreply transport does not
1910 grumble.
1911
911f6fde
PH
1912PH/05 If group was specified without a user on a router, and no group or user
1913 was specified on a transport, the group from the router was ignored.
1914
47ca6d6c
PH
1915PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1916 for visible compile-time settings that can be used to change these
1917 numbers, for those that want even more. Backwards compatibility with old
1918 spool files has been maintained. However, going back to a previous Exim
1919 release will lost any variables that are in spool files.
1920
ed0e9820
PH
1921PH/07 Two small changes when running in the test harness: increase delay when
1922 passing a TCP/IP connection to a new process, in case the original
1923 process has to generate a bounce, and remove special handling of
1924 127.0.0.2 (sic), which is no longer necessary.
1925
eff37e47
PH
1926PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1927 be the same on different OS.
1928
1921d2ea
PH
1929PH/09 Moved a debug statement in filter processing to avoid a race problem when
1930 testing.
1931
b3f69ca8
JJ
1932JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1933 whether --show-vars was specified or not
1934
1935JJ/02 exipick: Added support for new ACL variable spool format introduced
1936 in 4.61-PH/06
1937
424a1c63
PH
1938PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1939 syntactically invalid From: or Reply-to: line, and a filter used this to
1940 generate an autoreply, and therefore failed to obtain an address for the
1941 autoreply, Exim could try to deliver to a non-existent relative file
1942 name, causing unrelated and misleading errors. What now happens is that
1943 it logs this as a hard delivery error, but does not attempt to create a
1944 bounce message.
1945
7a100415
PH
1946PH/11 The exinext utility has a -C option for testing purposes, but although
1947 the given file was scanned by exinext itself; it wasn't being passed on
1948 when Exim was called.
1949
19b9dc85
PH
1950PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1951 an end-of-file indication when reading a command response.
1952
309bd837
PH
1953PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1954 compiled. In many other places in Exim, IPv6 addresses are always
1955 recognized, so I have changed this. It also means that IPv4 domain
1956 literals of the form [IPV4:n.n.n.n] are now always recognized.
1957
59e82a2a
PH
1958PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1959 used if the router is not running as root, for example, when verifying at
1960 ACL time, or when using -bh. The debugging output from this situation was
1961 non-existent - all you got was a failure to exec. I have made two
1962 changes:
1963
1964 (a) Failures to set uid/gid, the current directory, or a process leader
1965 in a subprocess such as that created by queryprogram now generate
1966 suitable debugging ouput when -d is set.
1967
1968 (b) The queryprogram router detects when it is not running as root,
1969 outputs suitable debugging information if -d is set, and then runs
1970 the subprocess without attempting to change uid/gid.
1971
9edc04ce
PH
1972PH/15 Minor change to Makefile for building test_host (undocumented testing
1973 feature).
1974
1349e1e5
PH
1975PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1976 additional section of a DNS packet that returns MX or SRV records.
1977 Instead, it always explicitly searches for A/AAAA records. This avoids
1978 major problems that occur when a DNS server includes only records of one
1979 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1980 fixed another bug: if SRV records were looked up and the corresponding
1981 address records were *not* found in the additional section, the port
1982 values from the SRV records were lost.
1983
ea49d0e1
PH
1984PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1985 using the correct key (the original address) when searching the retry
1986 rules in order to find which one to use for generating the retry hint.
1987
064a94c9
PH
1988PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1989 adding the default one. Similarly, if it contains a Reply-To: header, the
1990 errors_reply_to option, if set, is not used.
1991
727071f8
PH
1992PH/19 When calculating a retry time, Exim used to measure the "time since
1993 failure" by looking at the "first failed" field in the retry record. Now
1994 it does not use this if it is later than than the arrival time of the
1995 message. Instead it uses the arrival time. This makes for better
1996 behaviour in cases where some deliveries succeed, thus re-setting the
1997 "first failed" field. An example is a quota failure for a huge message
1998 when small messages continue to be delivered. Without this change, the
1999 "time since failure" will always be short, possible causing more frequent
2000 delivery attempts for the huge message than are intended.
dd16e114 2001 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 2002
f78eb7c6
PH
2003PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
2004 $1, $2, $3) because the numerical variables can be reset during some
2005 expansion items (e.g. "match"), thereby losing the authentication data.
2006
21c28500
PH
2007PH/21 Make -bV show the size of off_t variables so that the test suite can
2008 decide whether to run tests for quotas > 2G.
2009
2010PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
2011 mailbox_size, and mailbox_filecount in the appendfile transport. If a
2012 filecount value is greater than 2G or if a quota value is greater than 2G
2013 on a system where the size of off_t is not greater than 4, a panic error
2014 is given.
2015
1688f43b
PH
2016PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
2017 never match. The debug and -bh output now contains an explicit error
2018 message indicating a malformed IPv4 address or mask.
2019
2020PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
2021 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
2022 PH/23 above applies.
2023
9675b384
PH
2024PH/25 Do not write to syslog when running in the test harness. The only
2025 occasion when this arises is a failure to open the main or panic logs
2026 (for which there is an explicit test).
2027
6a3f1455
PH
2028PH/26 Added the /no_tell option to "control=freeze".
2029
dac79d3e
PH
2030PH/27 If a host name lookup failed very early in a connection, for example, if
2031 the IP address matched host_lookup and the reverse lookup yielded a name
2032 that did not have a forward lookup, an error message of the form "no IP
2033 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
2034 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 2035
5977a0b3
PH
2036PH/28 An enabling patch from MH: add new function child_open_exim2() which
2037 allows the sender and the authenticated sender to be set when
2038 submitting a message from within Exim. Since child_open_exim() is
2039 documented for local_scan(), the new function should be too.
2040
c91535f3
PH
2041PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
2042 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
2043 results in an empty string is now treated as unset.
2044
0d46a8c8
PH
2045PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
2046
278c6e6c
PH
2047PH/31 Added sender_verify_fail logging option.
2048
2cbb4081
PH
2049PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
2050 needed by RFC 822 but not by RFC 2822 was commented out. I have now
2051 tidied the source and removed it altogether.
2052
3eef829e
PH
2053PH/33 When a queue run was abandoned because the load average was too high, a
2054 log line was always written; now it is written only if the queue_run log
2055 selector is set. In addition, the log line for abandonment now contains
2056 information about the queue run such as the pid. This is always present
2057 in "start" and "stop" lines but was omitted from the "abandon" line.
2058
1ab95fa6
PH
2059PH/34 Omit spaces between a header name and the colon in the error message that
2060 is given when verify = headers_syntax fails (if there are lots of them,
2061 the message gets confusing).
2062
230205fc
PH
2063PH/35 Change the default for dns_check_names_pattern to allow slashes within
2064 names, as there are now some PTR records that contain slashes. This check
2065 is only to protect against broken name servers that fall over on strange
2066 characters, so the fact that it applies to all lookups doesn't matter.
2067
75e0e026
PH
2068PH/36 Now that the new test suite is complete, we can remove some of the
2069 special code in Exim that was needed for the old test suite. For example,
2070 sorting DNS records because real resolvers return them in an arbitrary
2071 order. The new test suite's fake resolver always returns records in the
2072 same order.
2073
2074PH/37 When running in the test harness, use -odi for submitted messages (e.g.
2075 bounces) except when queue_only is set, to avoid logging races between
2076 the different processes.
2077
145396a6
PH
2078PH/38 Panic-die if .include specifies a non-absolute path.
2079
3cd34f13
PH
2080PH/39 A tweak to the "H" retry rule from its user.
2081
11121d3d
JJ
2082JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
2083 a label. They prevented compilation on older perls.
2084
2085JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
2086 a warning to be raised on newish perls.
2087
2088JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
2089 on queue. Changes to match documented behaviour of showing count of
2090 messages matching specified criteria.
2091
8def5aaf
PH
2092PH/40 Changed the default ident timeout from 30s to 5s.
2093
929ba01c
PH
2094PH/41 Added support for the use of login_cap features, on those BSD systems
2095 that have them, for controlling the resources used by pipe deliveries.
2096
2632889e
PH
2097PH/42 The content-scanning code uses fopen() to create files in which to put
2098 message data. Previously it was not paying any attention to the mode of
2099 the files. Exim runs with umask(0) because the rest of the code creates
2100 files with open(), and sets the required mode explicitly. Thus, these
2101 files were ending up world-writeable. This was not a big issue, because,
2102 being within the spool directory, they were not world-accessible. I have
2103 created a function called modefopen, which takes an additional mode
2104 argument. It sets umask(777), creates the file, chmods it to the required
2105 mode, then resets the umask. All the relevant calls to fopen() in the
2106 content scanning code have been changed to use this function.
2107
944a9c55
PH
2108PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
2109 to 24 hours. This avoids potential overflow problems when processing G
2110 and H retry rules. I suspect nobody ever tinkers with this value.
2111
4a23603b
PH
2112PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
2113
4730f942
PH
2114PH/45 When the plaintext authenticator is running as a client, the server's
2115 challenges are checked to ensure they are valid base64 strings. By
2116 default, the authentication attempt is cancelled if an invalid string is
2117 received. Setting client_ignore_invalid_base64 true ignores these errors.
2118 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
2119 they are received. Thus, the responses can be made to depend on the
2120 challenges. If an invalid string is ignored, an empty string is placed in
2121 the variable.
2122
30dba1e6
PH
2123PH/46 Messages that are created by the autoreply transport now contains a
2124 References: header, in accordance with RFCs 2822 and 3834.
2125
382afc6b
PH
2126PH/47 Added authenticated_sender_force to the smtp transport.
2127
a86229cf
PH
2128PH/48 The ${prvs expansion was broken on systems where time_t was long long.
2129
50c99ba6
PH
2130PH/49 Installed latest patch from the Sieve maintainer.
2131
d35e429d
PH
2132PH/50 When an Exim quota was set without a file count quota, and mailbox_size
2133 was also set, the appendfile transport was unnecessarily scanning a
2134 directory of message files (e.g. for maildir delivery) to find the count
2135 of files (along with the size), even though it did not need this
2136 information. It now does the scan only if it needs to find either the
2137 size of the count of files.
2138
f90d018c
PH
2139PH/51 Added ${time_eval: to convert Exim time strings into seconds.
2140
75def545
PH
2141PH/52 Two bugs concerned with error handling when the smtp transport is
2142 used in LMTP mode:
2143
2144 (i) Exim was not creating retry information for temporary errors given
2145 for individual recipients after the DATA command when the smtp transport
2146 was used in LMTP mode. This meant that they could be retried too
2147 frequently, and not timed out correctly.
2148
2149 (ii) Exim was setting the flag that allows error details to be returned
2150 for LMTP errors on RCPT commands, but not for LMTP errors for individual
2151 recipients that were returned after the DATA command.
2152
2153PH/53 This is related to PH/52, but is more general: for any failing address,
2154 when detailed error information was permitted to be returned to the
2155 sender, but the error was temporary, then after the final timeout, only
2156 "retry timeout exceeded" was returned. Now it returns the full error as
2157 well as "retry timeout exceeded".
2158
c46782ef
PH
2159PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
2160 do this, and (what is worse) MTAs that accept it.
2161
71fafd95
PH
2162PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
2163 will now be deprecated.
2164
2c5db4fd
PH
2165PH/56 New os.c-cygwin from the Cygwin maintainer.
2166
9cf6b11a
JJ
2167JJ/06 exipick: added --unsorted option to allow unsorted output in all output
2168 formats (previously only available in exim formats via -bpr, -bpru,
2169 and -bpra. Now also available in native and exiqgrep formats)
2170
2171JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
2172 with very large, slow to parse queues
2173
2174JJ/08 exipick: added ! as generic prefix to negate any criteria format
2175
2176JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
2177
898d150f
PH
2178PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
2179 responses to authentication challenges, though it was showing the
2180 challenges; (ii) I've removed the CR characters from the debug output for
2181 SMTP output lines.
2182
46218253
PH
2183PH/58 Allow for the insertion of a newline as well as a space when a string
2184 is turned into more than one encoded-word during RFC 2047 encoding. The
2185 Sieve code now uses this.
2186
e97957bc
PH
2187PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
2188 data_4xx, lost_connection, tls_required.
2189
81e509d7
PH
2190PH/60 When a VRFY deferred or FAILED, the log message rather than the user
2191 message was being sent as an SMTP response.
2192
3d240ff7
PH
2193PH/61 Add -l and -k options to exicyclog.
2194
b37c4101
PH
2195PH/62 When verifying, if an address was redirected to one new address, so that
2196 verification continued, and the new address failed or deferred after
2197 having set something in $address_data, the value of $address_data was not
2198 passed back to the ACL. This was different to the case when no
2199 redirection occurred. The value is now passed back in both cases.
2200
79378e0f
PH
2201PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
2202 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
2203 use login_cap.h, so on its own it isn't the distinguishing feature. The
2204 new name refers directly to the setclassresources() function.
2205
e49c7bb4
PH
2206PH/65 Added configuration files for NetBSD3.
2207
d114ec46
PH
2208PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
2209
f3d7df6c
PH
2210PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
2211 is preferred over IPv4.
2212
715ab376
PH
2213PH/68 The bounce_return_message and bounce_return_body options were not being
2214 honoured for bounces generated during the reception of non-SMTP messages.
2215 In particular, this applied to messages rejected by the ACL. This bug has
2216 been fixed. However, if bounce_return_message is true and bounce_return_
2217 body is false, the headers that are returned for a non-SMTP message
2218 include only those that have been read before the error was detected.
2219 (In the case of an ACL rejection, they have all been read.)
2220
6b31b150
PH
2221PH/69 The HTML version of the specification is now built in a directory called
2222 spec_html instead of spec.html, because the latter looks like a path with
2223 a MIME-type, and this confuses some software.
2224
2225PH/70 Catch two compiler warnings in sieve.c.
2226
d515a917
PH
2227PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
2228 function verify_get_ident() calls ip_connect() to connect a socket, but
2229 if the "connect()" function timed out, ip_connect() used to close the
2230 socket. However, verify_get_ident() also closes the socket later, and in
2231 between Exim writes to the log, which may get opened at this point. When
2232 the socket was closed in ip_connect(), the log could get the same file
2233 descriptor number as the socket. This naturally causes chaos. The fix is
2234 not to close the socket in ip_connect(); the socket should be closed by
2235 the function that creates it. There was only one place in the code where
2236 this was missing, in the iplookup router, which I don't think anybody now
2237 uses, but I've fixed it anyway.
2238
9b8fadde
PH
2239PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
2240 well as to direct DNS lookups. Otherwise the handling of names in host
2241 lists is inconsistent and therefore confusing.
2242
214e2000 2243
5de37277
PH
2244Exim version 4.60
2245-----------------
2246
cc38ddbf
PH
2247PH/01 Two changes to the default runtime configuration:
2248
2249 (1) Move the checks for relay_from_hosts and authenticated clients from
2250 after to before the (commented out) DNS black list checks.
2251
2252 (2) Add control=submission to the relay_from_hosts and authenticated
2253 clients checks, on the grounds that messages accepted by these
2254 statements are most likely to be submissions.
5de37277 2255
72fdd6ae
PH
2256PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
2257
2258 (1) Generate an error if the third argument for the ${prvs expansion is
2259 not a single digit.
2260
2261 (2) Treat a missing third argument of ${prvscheck as if it were an empty
2262 string.
2263
2264 (3) Reset the variables that are obtained from the first argument of
2265 ${prvscheck and used in the second argument before leaving the code,
2266 because their memory is reclaimed, so using them afterwards may do
2267 silly things.
2268
2269 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
2270 one (it's much easier than Tom thought :-).
2271
2272 (5) Because of (4), we can now allow for the use of $prvscheck_result
2273 inside the third argument.
cb9328de 2274
cb741023
PH
2275PH/03 For some reason, the default setting of PATH when running a command from
2276 a pipe transport was just "/usr/bin". I have changed it to
2277 "/bin:/usr/bin".
2278
f174f16e
PH
2279PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
2280 anything to be listed in the output from -bV.
b2f5a032 2281
c25242d7
PH
2282PH/05 When a filter generated an autoreply, the entire To: header line was
2283 quoted in the delivery log line, like this:
2284
2285 => >A.N.Other <ano@some.domain> <original@ddress> ...
2286
2287 This has been changed so that it extracts the operative address. There
2288 may be more than one such address. If so, they are comma-separated, like
2289 this:
2290
2291 => >ano@some.domain,ona@other.domain <original@ddress> ...
2292
82c19f95
PH
2293PH/06 When a client host used a correct literal IP address in a HELO or EHLO
2294 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
2295 not being looked up in the rDNS to get a host name, Exim was showing the
2296 IP address twice in Received: lines, even though the IP addresses were
2297 identical. For example:
2298
2299 Received: from [1.2.3.4] (helo=[1.2.3.4])
2300
2301 However, if the real host name was known, it was omitting the HELO data
2302 if it matched the actual IP address. This has been tidied up so that it
2303 doesn't show the same IP address twice.
2304
d7ffbc12
PH
2305PH/07 When both +timestamp and +memory debugging was on, the value given by
2306 $tod_xxx expansions could be wrong, because the tod_stamp() function was
2307 called by the debug printing, thereby overwriting the timestamp buffer.
2308 Debugging no longer uses the tod_stamp() function when +timestamp is set.
2309
9f526266
PH
2310PH/08 When the original message was included in an autoreply transport, it
2311 always said "this is a copy of the message, including all the headers",
2312 even if body_only or headers_only was set. It now gives an appropriate
2313 message.
2314
87fcc8b9
PH
2315PH/09 Applied a patch from the Sieve maintainer which:
2316
2317 o fixes some comments
2318 o adds the (disabled) notify extension core
2319 o adds some debug output for the result of if/elsif tests
2320 o points to the current vacation draft in the documentation
2321 and documents the missing references header update
2322
2323 and most important:
2324
2325 o fixes a bug in processing the envelope test (when testing
2326 multiple envelope elements, the last element determinted the
2327 result)
2328
456682f5
PH
2329PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
2330 Electronic Mail") by including:
2331
2332 Auto-submitted: auto-generated
2333
2334 in the messages that it generates (bounce messages and others, such as
2335 warnings). In the case of bounce messages for non-SMTP mesages, there was
2336 also a typo: it was using "Auto_submitted" (underscore instead of
2337 hyphen). Since every message generated by Exim is necessarily in response
2338 to another message, thes have all been changed to:
2339
2340 Auto-Submitted: auto-replied
2341
2342 in accordance with these statements in the RFC:
2343
2344 The auto-replied keyword:
2345
2346 - SHOULD be used on messages sent in direct response to another
2347 message by an automatic process,
2348
2349 - MUST NOT be used on manually-generated messages,
2350
2351 - MAY be used on Delivery Status Notifications (DSNs) and Message
2352 Disposition Notifications (MDNs),
2353
2354 - MUST NOT be used on messages generated by automatic or periodic
2355 processes, except for messages which are automatic responses to
2356 other messages.
2357
3e46c1aa
PH
2358PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
2359 to the default Received: header definition.
456682f5 2360
49826d12
PH
2361PH/12 Added log selector acl_warn_skipped (default on).
2362
eba0c039
PH
2363PH/13 After a successful wildlsearch lookup, discard the values of numeric
2364 variables because (a) they are in the wrong storage pool and (b) even if
2365 they were copied, it wouldn't work properly because of the caching.
2366
a0d6ba8a
PH
2367PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2368 checking when decoding. Apparently there are clients that generate
2369 overlong encoded strings. Why am I not surprised?
2370
f0917727
PH
2371PH/15 If the first argument of "${if match_address" was not empty, but did not
2372 contain an "@" character, Exim crashed. Now it writes a panic log message
2373 and treats the condition as false.
2374
096fee00
PH
2375PH/16 In autoreply, treat an empty string for "once" the same as unset.
2376
024bd3c2
PH
2377PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2378 extension "envelope-auth". The code is finished and in agreement with
2379 other implementations, but there is no documentation so far and in fact,
2380 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2381 not changing the active code.
2382
2383 Print executed "if" and "elsif" statements when debugging is used. This
2384 helps a great deal to understand what a filter does.
2385
2386 Document more things not specified clearly in RFC3028. I had all this
2387 sorted out, when out of a sudden new issues came to my mind. Oops."
2388
df199fec
PH
2389PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2390 (Bugzilla #53).
2391
d27f1df3
PH
2392PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2393 canonical form (as documented). However, after a host name lookup from
2394 the IP address, check_host() was doing a simple string comparison with
2395 addresses acquired from the DNS when checking that the found name did
2396 have the original IP as one of its addresses. Since any found IPv6
2397 addresses are likely to be in abbreviated form, the comparison could
2398 fail. Luckily, there already exists a function for doing the comparison
2399 by converting both addresses to binary, so now that is used instead of
2400 the text comparison.
2401
96776534
PH
2402PH/20 There was another similar case to PH/19, when a complete host name was
2403 given in a host list; looking up its IP address could give an abbreviated
2404 form, whereas the current host's name might or might not be abbreviated.
2405 The same fix has been applied.
2406
5de37277 2407
9a799bc0
PH
2408Exim version 4.54
2409-----------------
2410
2411PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2412 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2413 It now does.
2414
99a4b039
PH
2415PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2416 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2417
2418PH/03 Typo: missing ".o" in src/pcre/Makefile.
2419
4b233853
PH
2420PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2421 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2422 Also, for "Auto-Submitted", treat anything other than "no" as
2423 non-personal, in accordance with RFC 3834. (Previously it treated
2424 anything starting "auto-" as non-personal.)
2425
8857ccfd
PH
2426TF/01 The control=submission/name=... option had a problem with syntax
2427 errors if the name included a slash character. The /name= option
2428 now slurps the rest of the string, so it can include any characters
2429 but it must come last in the list of options (after /sender_retain
2430 or /domain=).
2431
433a2980
PH
2432PH/05 Some modifications to the interface to the fake nameserver for the new
2433 testing suite.
2434
3e46c1aa 2435
9a799bc0 2436
e3a311ba
TK
2437Exim version 4.53
2438-----------------
2439
2440TK/01 Added the "success_on_redirect" address verification option. See
2441 NewStuff for rationale and an example.
2442
13b685f9
PH
2443PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2444
395ff96d
PH
2445PH/02 Patch to exigrep to allow it to work on syslog lines.
2446
5b68f6e4
PH
2447PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2448 fread() to skip over the body file's header line, because in Cygwin the
2449 header line is locked and is inaccessible.
2450
1ab52c69
PH
2451PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2452 co-exist for some time) to make it clear that it is the Exim ID that is
2453 referenced, not the Message-ID: header line.
2454
b07e6aa3
PH
2455PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2456 string_format() function, because snprintf() does not exist on all
2457 operating systems.
2458
254e032f
PH
2459PH/06 The use of forbid_filter_existstest now also locks out the use of the
2460 ${stat: expansion item.
2461
3af76a81
PH
2462PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2463 protocol synchronization error", to keep the pedants happy.
2464
2548ba04
PH
2465PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2466 well as for IRIX systems, when gcc is being used. See the host.c source
2467 file for comments.
2468
b6c6011d
PH
2469PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2470
cf39cf57
PH
2471PH/10 Named domain lists were not working if used in a queue_smtp_domains
2472 setting.
2473
f1513293
PH
2474PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2475 transport and to the smtp transport in LMTP mode.
2476
727549a4
PH
2477TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2478
af46795e
PH
2479PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2480 run a filter in a subprocess. This could lead to confusion in subsequent
2481 lookups in the parent process. There should also be a search_tidyup() at
2482 the end of the subprocess.
2483
d7b47fd0
PH
2484PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2485 only if the host matched helo_try_verify_hosts, which caused the
2486 verification to occur when the EHLO/HELO command was issued. The ACL just
2487 tested the remembered result. Now, if a previous verification attempt has
2488 not happened, "verify = helo" does it there and then.
2489
ee744174
JJ
2490JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2491
b582ab87
PH
2492TK/03 Fix log output including CR from clamd.
2493
41a13e0a
PH
2494PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2495 exist provoked a memory error which could cause a segfault.
2496
f625cc5a
PH
2497PH/15 Installed PCRE 6.2
2498
2499PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2500
21f7af35
PH
2501PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2502 of the problem. Specifically, suggested +O2 rather than +O1 for the
2503 HP-UX compiler.
2504
31480e42
PH
2505PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2506
2d280592
PH
2507PH/20 If a delivery was routed to a non-standard port by means of an SRV
2508 record, the port was not correctly logged when the outgoing_port log
2509 selector was set (it logged the transort's default port).
2510
7cd1141b
PH
2511PH/21 Added support for host-specific ports to manualroute, queryprogram,
2512 fallback_hosts, and "hosts" in the smtp transport.
2513
2514PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2515 host errors such as "Connection refused".
2516
750af86e
PH
2517PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2518 authentication with radiusclient 0.4.9:
2519
2520 - Error returned from rc_read_config was caught wrongly
2521 - Username/password not passed on to radius server due to wrong length.
2522
2523 The presumption is that some radiusclient API changes for 4.51/PH/17
2524 were not taken care of correctly. The code is still untested by me (my
2525 Linux distribution still has 0.3.2 of radiusclient), but it was
2526 contributed by a Radius user.
2527
2528PH/24 When doing a callout, the value of $domain wasn't set correctly when
2529 expanding the "port" option of the smtp transport.
2530
4304270b
TK
2531TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2532 while reading a MIME header. Thanks to Tom Hughes for a patch.
2533
750af86e
PH
2534PH/24 Include config.h inside local_scan.h so that configuration settings are
2535 available.
2536
64ffc24f
PH
2537PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2538 that in an ACL for RCPT (for example), you can examine exactly what was
2539 received.
2540
5dd9625b
PH
2541PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2542 commands, but it was not correctly comparing the address with the actual
2543 client host address. Thus, it would show the EHLO address in Received:
2544 header lines when this was not necessary.
2545
5591031b
PH
2546PH/27 Added the % operator to ${eval:}.
2547
ba18e66a
PH
2548PH/28 Exim tries to create and chdir to its spool directory when it starts;
2549 it should be ignoring failures (because with -C, for example, it has lost
2550 privilege). It wasn't ignoring creation failures other than "already
2551 exists".
2552
9cec981f
PH
2553PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2554 -bV or -d is used.
2555
aa2b5c79
PH
2556PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2557 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2558 too many continuations, the temporary file was not being removed, and the
2559 return code was incorrect.
aa2b5c79 2560
48a53b7f
PH
2561PH/31 Missing "BOOL" in function definition in filtertest.c.
2562
1c59d63b
PH
2563PH/32 Applied Sieve patches from the maintainer.
2564
671012da
TK
2565TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2566
1509d3a8
PH
2567PH/33 Added "verify = not_blind".
2568
2569PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2570 Local/Makefile (with some defaults set). These are used in built scripts
2571 such as exicyclog, but they have never been used in the exim_install
2572 script (though there are many overriding facilities there). I have
2573 arranged that the exim_install script now takes note of these two
2574 settings.
2575
2576PH/35 Installed configuration files for Dragonfly.
2577
2fe1a124
PH
2578PH/36 When a locally submitted message by a trusted user did not contain a
2579 From: header, and the sender address was obtained from -f or from an SMTP
2580 MAIL command, and the trusted user did not use -F to supply a sender
2581 name, $originator_name was incorrectly used when constructing a From:
2582 header. Furthermore, $originator_name was used for submission mode
2583 messages from external hosts without From: headers in a similar way,
2584 which is clearly wrong.
2585
8800895a
PH
2586PH/37 Added control=suppress_local_fixups.
2587
ccfdb010
PH
2588PH/38 When log_selector = +received_sender was set, and the addition of the
2589 sender made the log line's construction buffer exactly full, or one byte
2590 less than full, an overflow happened when the terminating "\n" was
2591 subsequently added.
2592
1130bfb0
PH
2593PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2594 when the result of a list match is failure because a DNS lookup failed.
2595
ebcb507f
PH
2596PH/40 RM_COMMAND is now used in the building process.
2597
c35e155c
PH
2598PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2599 the "build-* directories that it finds.
2600
95d1f782
PH
2601PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2602 address in a domain literal was a prefix of an interface address.
2603
fd6de02e
PH
2604PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2605 when verifying a sender address, unless rewrite_headers is false.
2606
58de37c5
PH
2607PH/44 Wrote a long comment about why errors_to addresses are verified as
2608 recipients, not senders.
2609
261cf466
TF
2610TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2611 the ratelimit ACL was added.
2612
3ee512ff
PH
2613PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2614
e08c430f
PH
2615PH/46 Added extra information about PostgreSQL errors to the error string.
2616
bef5a11f
PH
2617PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2618 avoiding the need to install special zones in a real server. This is
2619 backwards compatible; if it can't find the fake resolver, it drops back.
2620 Thus, both old and new test suites can be run.
2621
7546de58
TF
2622TF/02 Added util/ratelimit.pl
2623
e5d5a95f
TF
2624TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2625 clock is set back in time.
2626
2e88a017
TF
2627TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2628 Candler <B.Candler@pobox.com>.
2629
a5f65aa4
TF
2630TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2631 OK for addresses that are the result of redirections.
2632
e7726cbf
PH
2633PH/48 A number of further additions for the benefit of the new test suite,
2634 including a fake gethostbyname() that interfaces to the fake DNS resolver
2635 (see PH/47 above).
2636
a7fdad5b
TF
2637TF/06 The fix for widen_domains has also been applied to qualify_single and
2638 search_parents which are the other dnslookup options that can cause
2639 header rewrites.
2640
6af56900
PH
2641PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2642 type ("H").
2643
0925ede6
PH
2644PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2645
66afa403
TF
2646TF/07 Exim produced the error message "an SRV record indicated no SMTP
2647 service" if it encountered an MX record with an empty target hostname.
2648 The message is now "an MX or SRV record indicated no SMTP service".
2649
0154e85a
TF
2650TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2651 if the DNS of the sending site is misconfigured. This is quite a
2652 common situation. This change restores the behaviour of treating a
2653 helo verification defer as a failure.
2654
16f12c76
PH
2655PH/51 If self=fail was set on a router, the bounce message did not include the
2656 actual error message.
2657
bbe902f0 2658
e5a9dba6
PH
2659Exim version 4.52
2660-----------------
2661
2662TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2663
22c3b60b
PH
2664PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2665 command itself ended in error, the underlying message about the transport
2666 filter timeout was being overwritten with the pipe command error. Now the
2667 underlying error message should be appended to the second error message.
2668
06a9b4b5
PH
2669TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2670
c1ac6996
PH
2671PH/02 Reduce the amount of output that "make" produces by default. Full output
2672 can still be requested.
2673
9c7a242c
PH
2674PH/03 The warning log line about a condition test deferring for a "warn" verb
2675 was being output only once per connection, rather than after each
2676 occurrence (because it was using the same function as for successful
2677 "warn" verbs). This seems wrong, so I have changed it.
2678
87ba3f5f
PH
2679TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2680 it should not have, which might have caused a crash in the right
2681 circumstances, but probably never did.
2682
2683PH/04 Installed a modified version of Tony Finch's patch to make submission
2684 mode fix the return path as well as the Sender: header line, and to
2685 add a /name= option so that you can make the user's friendly name appear
2686 in the header line.
2687
29aba418
TF
2688TF/03 Added the control = fakedefer ACL modifier.
2689
fe0dab11
TF
2690TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2691 Mark Lowes for thorough testing.
870f6ba8 2692
11d337a4
TK
2693TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2694
2695TK/03 Merged latest SRS patch from Miles Wilton.
2696
415c8f3b
PH
2697PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2698 with the definition in sysexits.h (which is #included earlier).
2699 Fortunately, Exim does not actually use EX_OK. The code used to try to
2700 preserve the sysexits.h value, by assumimg that macro definitions were
2701 scanned for macro replacements. I have been disabused of this notion,
2702 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2703
958541e9
PH
2704PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2705 in the smtp transport. When a block could not be written in a single
2706 write() function, the timeout was being re-applied to each part-write.
2707 This seems wrong - if the receiver was accepting one byte at a time it
2708 would take for ever. The timeout is now adjusted when this happens. It
2709 doesn't have to be particularly precise.
2710
c206415f
TK
2711TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2712 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2713
2a4be8f9
PH
2714PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2715 without a domain if the check to <postmaster@domain> fails.
2716
1cba11c5
SC
2717SC/01 Eximstats: added -xls and the ability to specify output files
2718 (patch written by Frank Heydlauf).
2719
2720SC/02 Eximstats: use FileHandles for outputing results.
2721
2722SC/03 Eximstats: allow any combination of xls, txt, and html output.
2723
2724SC/04 Eximstats: fixed display of large numbers with -nvr option
2725
2726SC/05 Eximstats: fixed merging of reports with empty tables.
2727
2728SC/06 Eximstats: added the -include_original_destination flag
2729
2730SC/07 Eximstats: removed tabs and trailing whitespace.
2731
1005d00e
TK
2732TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2733
2734TK/06 MBOX spool code: Add real "From " MBOX separator line
2735 so the .eml file is really in mbox format (even though
2736 most programs do not really care). Patch from Alex Miller.
2737
2738TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2739 The latter is generated from $received_to and is only set if the
2740 message has one envelope recipient. SA can use these headers,
2741 obviously out-of-the-box. Patch from Alex Miller.
2742
9b4768fa
PH
2743PH/08 The ${def test on a variable was returning false if the variable's
2744 value was "0", contrary to what the specification has always said!
2745 The result should be true unless the variable is empty.
2746
2747PH/09 The syntax error of a character other than { following "${if
2748 def:variable_name" (after optional whitespace) was not being diagnosed.
2749 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2750 accidental colon was present, for example, could give incorrect results.
2751
0d7eb84a
PH
2752PH/10 Tidied the code in a number of places where the st_size field of a stat()
2753 result is used (not including appendfile, where other changes are about
2754 to be made).
2755
2756PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2757 This involved changing a lot of size variables from int to off_t. It
2758 should work with maildirs and everything.
2759
40727bee
TK
2760TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2761 spamd dying while we are connected to it.
2762
554d2369
TF
2763TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2764 <jgh@wizmail.org>
2765
1f922db1
PH
2766PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2767 function for BDB 4.3.
2768
ef213c3b
PH
2769PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2770
8ac170f3
PH
2771PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2772 the sources for PCRE have been re-arranged and more files are now
2773 involved.
2774
b1c749bb
PH
2775PH/15 The code I had for printing potentially long long variables in PH/11
2776 above was not the best (it lost precision). The length of off_t variables
2777 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2778 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2779 to be "long long int" or "long int". This is needed for the internal
2780 formatting function string_vformat().
b1c749bb 2781
4aac9b49
PH
2782PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2783 the configuration file to be ":syslog", then the script "guesses" where
2784 the logs files are, rather than using the compiled in default. In our
2785 case the guess is not the same as the compiled default, so the script
2786 suddenly stopped working when I started to use syslog. The patch checks
2787 to see if log_file_path is "". If so, it attempts to read it from exim
2788 with no configuration file to get the compiled in version, before it
2789 falls back to the previous guessing code."
2790
294520c8
TK
2791TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2792 implementing BATV in an Exim configuration. See NewStuff for the gory
2793 details.
2794
5bd022fe
PH
2795PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2796 Makefile that are specific to HP-UX.
2797
90e9ce59
PH
2798PH/18 If the "use_postmaster" option was set for a recipient callout together
2799 with the "random" option, the postmaster address was used as the MAIL
2800 FROM address for the random test, but not for the subsequent recipient
2801 test. It is now used for both.
2802
5ea81592
PH
2803PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2804 patch removes a few documentation additions to RFC 3028, because the
2805 latest draft now contains them. It adds the new en;ascii-case comparator
2806 and a new error check for 8bit text in MIME parts. Comparator and
2807 require names are now matched exactly. I enabled the subaddress
2808 extension, but it is not well tested yet (read: it works for me)."
2809
c6c2dc1d
PH
2810PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2811 rework some of the code of TK/09 above to avoid the hardwired use of
2812 "%lld" and "long long". Replaced the call to snprintf() with a call to
2813 string_vformat().
2814
fffffe4c
PH
2815PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2816 records point to non-existent hosts", "retry timeout exceeded", and
2817 "retry time not reached for any host after a long failure period".
ca02eafb 2818
9a26b6b2
PH
2819PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2820 experimental DomainKeys support:
2821
2822 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2823 (2) On an error such as an illegally used "control", the wrong name for
2824 the control was given.
2825
2826 These problems did NOT occur unless DomainKeys support was compiled.
2827
4aee0225
PH
2828PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2829
32d668a5
PH
2830PH/24 Added ${if match_ip condition.
2831
8187c3f3
PH
2832PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2833 databases so that it will be absolutely obvious if a crash occurs in the
2834 DB library. This is a regular occurrence (often caused by mis-matched
2835 db.h files).
2836
ff790e47 2837PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2838 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2839 picked up on a user's system that detects such things. There doesn't seem
2840 to be a gcc warning option for this - only an attribute that has to be
2841 put on the function's prototype. It seems that in Fedora Core 4 they have
2842 set this on a number of new functions. No doubt there will be more in due
2843 course.
ff790e47 2844
5417f6d1
PH
2845PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2846 specify a transport. However, if an address that was verified by such a
2847 router was the subject of a callout, Exim crashed because it tried to
2848 read the rcpt_include_affixes from the non-existent transport. Now it
2849 just assumes that the setting of that option is false. This bug was
2850 introduced by 4.51/PH/31.
2851
59cf8544
PH
2852PH/28 Changed -d+all to exclude +memory, because that information is very
2853 rarely of interest, but it makes the output a lot bigger. People tend to
2854 do -d+all out of habit.
2855
e7ad8a65
PH
2856PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2857 code in os-type was giving problems when libc.so lives in lib64, like on
2858 x86_64 Fedora Core.
2859
ade42478
PH
2860PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2861 aren't the modern standard, and it seems that some systems' include files
2862 don't always have them. Exim was already checking for some of the newer
2863 ones like T_AAAA, and defining it itself. I've added checks for all the
2864 record types that Exim uses.
2865
182ad5cf
PH
2866PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2867 not automatically generating a new one, as it is supposed to. This
2868 prevented TLS from working. If the file did exist, but contained invalid
2869 data, a new version was generated, as expected. It was only the case of a
2870 non-existent file that was broken.
2871
b0d9fc80
TK
2872TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2873 with a change in libdomainkeys > 0.64.
2874
2875TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2876 from DNS. If the selector record carries the flag, it now has
2877 precedence over the domain-wide flag.
2878
2879TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2880
47c7a64a
PH
2881PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2882 the use of a port name that isn't defined in /etc/services) occurred, the
2883 message was deferred as in a normal delivery, and thus remained on the
2884 spool, instead of being failed because of the mua_wrapper setting. This
2885 is now fixed, and I tidied up some of the mua_wrapper messages at the
2886 same time.
2887
a388bce4
SC
2888SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2889 the messages in a hash of arrays rather than using individual hashes.
2890 This is a bit cleaner and results in dramatic memory savings, albeit
2891 at a slight CPU cost.
2892
2893SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2894 as requested by Marc Sherman.
2895
2896SC/10 Eximstats: added histograms for user specified patterns as requested
2897 by Marc Sherman.
2898
0793e4ed
SC
2899SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2900
c58b88df
PH
2901PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2902 fopen() in the content-scanning modules that did not already have it.
2903
e7ad8a65 2904
7982096b
PH
2905Exim version 4.51
2906-----------------
2907
1a46a8c5
PH
2908TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2909 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2910
2f079f46 2911TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2912
2913TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2914
2915PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2916 to test Sieve filters that use "vacation".
2917
2918PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2919 that changes the way the GnuTLS parameters are stored in the cache file.
2920 The new format can be generated externally. For backward compatibility,
2921 if the data in the cache doesn't make sense, Exim assumes it has read an
2922 old-format file, and it generates new data and writes a new file. This
2923 means that you can't go back to an older release without removing the
2924 file.
2925
2926PH/03 A redirect router that has both "unseen" and "one_time" set does not
2927 work if there are any delivery delays because "one_time" forces the
2928 parent to be marked "delivered", so its unseen clone is never tried
2929 again. For this reason, Exim now forbids the simultaneous setting of
2930 these two options.
2931
2932PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2933 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2934 entry if you want to know the details. The fix, however, neglected to
2935 consider the case when local delivery batching is involved. The test for
2936 "previously delivered" was not happening when checking to see if an
2937 address could be batched with a previous (undelivered) one; under
2938 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2939 address.
1a46a8c5
PH
2940
2941PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2942 in its include files, and this causes problems building Exim.
2943
2944PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2945 header_syntax) but Exim was just ignoring anything given after a slash.
2946 In particular, this caused confusion with an attempt to use "verify =
2947 reverse_host_lookup/defer_ok". An error is now given when options are
2948 supplied for verify items that do not have them. (Maybe reverse_host_
2949 lookup should have a defer_ok option, but that's a different point.)
2950
2951PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2952 defined by RFC 821) to 2048, because there were problems with some AUTH
2953 commands, and RFC 1869 says the size should be increased for extended
2954 SMTP commands that take arguments.
2955
2956PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2957 Finch).
2958
2959PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2960 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2961
49c2d5ea
PH
2962PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2963 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2964 whatever). Otherwise the password may appear in the log. Following change
2965 PH/42 below, there is no longer a chance of it appearing in a bounce
2966 message.
49c2d5ea 2967
bf759a8b
PH
2968PH/11 Installed exipick version 20050225.0 from John Jetmore.
2969
83364d30
PH
2970PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2971 of its addresses was ever tried. (Bugzilla bug #2.)
2972
7999bbd7
PH
2973PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2974 the result incorrectly in the debug output. (It correctly added a newline
2975 to what was transported.)
2976
7dbf77c9
PH
2977TF/01 Added $received_time.
2978
74e0617f
PH
2979PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2980 commented out examples of how to interface to a virus scanner and to
2981 SpamAssassin. Also added commented examples of av_scanner and
2982 spamd_address settings.
2983
2f079f46
PH
2984PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2985 and controls are allowed in which ACLs. There were a couple of minor
2986 errors. Some of the entries in the conditions table (which is a table of
2987 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2988 negation of where the condition IS allowed.
2989
8c841523
PH
2990PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2991
7766a4f0
PH
2992PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2993 header file does not have a version number, so I've had to invent a new
2994 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2995 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2996 radiusclient), but it was contributed by a Radius user.
2997
8b417f2c
PH
2998PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2999 files or directories, for OpenSSL.
3000
901f42cb
PH
3001PH/19 When an Exim process that is running as root has to create an Exim log
3002 file, it does so in a subprocess that runs as exim:exim so as to get the
3003 ownership right at creation (otherwise, other Exim processes might see
3004 the file with the wrong ownership). There was no test for failure of this
3005 fork() call, which would lead to the process getting stuck as it waited
3006 for a non-existent subprocess. Forks do occasionally fail when resources
3007 run out. I reviewed all the other calls to fork(); they all seem to check
3008 for failure.
3009
f9b9210e
PH
3010PH/20 When checking for unexpected SMTP input at connect time (before writing
3011 the banner), Exim was not dealing correctly with a non-positive return
3012 from the read() function. If the client had disconnected by this time,
3013 the result was a log entry for a synchronization error with an empty
3014 string after "input=" when read() returned zero. If read() returned -1
3015 (an event I could not check), uninitialized data bytes were printed.
3016 There were reports of junk text (parts of files, etc) appearing after
3017 "input=".
3018
54cdb463
PH
3019PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
3020
cf00dad6
PH
3021PH/22 Added support for macro redefinition, and (re)definition in between
3022 driver and ACL definitions.
3023
acb1b346
PH
3024PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
3025 forgetting to use the resulting value; it was using the unexpanded value.
3026
c5ddb310
PH
3027PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
3028 hadn't been configured. The fix is from Juergen Kreileder, who
3029 understands it better than I do:
3030
3031 "Here's what I see happening with three configured cyrus_sasl
3032 authenticators configured (plain, login, cram-md5):
3033
3034 On startup auth_cyrus_sasl_init() gets called for each of these.
3035 This means three calls to sasl_listmech() without a specified mech_list.
3036 => SASL tests which mechs of all available mechs actually work
3037 => three warnings about OTP not working
3038 => the returned list contains: plain, login, cram-md5, digest-md5, ...
3039
3040 With the patch, sasl_listmech() also gets called three times. But now
3041 SASL's mech_list option is set to the server_mech specified in the the
3042 authenticator. Or in other words, the answer from sasl_listmech()
3043 gets limited to just the mech you're testing for (which is different
3044 for each call.)
3045 => the return list contains just 'plain' or 'login', 'cram-md5' or
3046 nothing depending on the value of ob->server_mech.
3047
3048 I've just tested the patch: Authentication still works fine,
3049 unavailable mechs specified in the exim configuration are still
3050 caught, and the auth.log warnings about OTP are gone."
3051
31619da6
PH
3052PH/25 When debugging is enabled, the contents of the command line are added
3053 to the debugging output, even when log_selector=+arguments is not
3054 specified.
3055
bebaf0fc
PH
3056PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
3057 answer is "GNU", and only if the return is "GNU/something" is the answer
3058 "Linux".
3059
475fe28a
PH
3060PH/27 $acl_verify_message is now set immediately after the failure of a
3061 verification in an ACL, and so is available in subsequent modifiers. In
3062 particular, the message can be preserved by coding like this:
3063
3064 warn !verify = sender
3065 set acl_m0 = $acl_verify_message
3066
3067 Previously, $acl_verify_message was set only while expanding "message"
3068 and "log_message" when a very denied access.
3069
7e8bec7a
PH
3070PH/28 Modified OS/os.c-Linux with
3071
3072 -#ifndef OS_LOAD_AVERAGE
3073 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
3074
3075 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
3076 nomenclature these days.)
3077
e4a89c47
PH
3078PH/29 Installed patch from the Sieve maintainer that adds the options
3079 sieve_useraddress and sieve_subaddress to the redirect router.
3080
5ca2a9a1
PH
3081PH/30 In these circumstances:
3082 . Two addresses routed to the same list of hosts;
3083 . First host does not offer TLS;
3084 . First host accepts first address;
3085 . First host gives temporary error to second address;
3086 . Second host offers TLS and a TLS session is established;
3087 . Second host accepts second address.
3088 Exim incorrectly logged both deliveries with the TLS parameters (cipher
3089 and peerdn, if requested) that were in fact used only for the second
3090 address.
7e8bec7a 3091
c688b954
PH
3092PH/31 When doing a callout as part of verifying an address, Exim was not paying
3093 attention to any local part prefix or suffix that was matched by the
3094 router that accepted the address. It now behaves in the same way as it
3095 does for delivery: the affixes are removed from the local part unless
3096 rcpt_include_affixes is set on the transport.
3097
fed77020
PH
3098PH/32 Add the sender address, as F=<...>, to the log line when logging a
3099 timeout during the DATA phase of an incoming message.
3100
7fe1560f
PH
3101PH/33 Sieve envelope tests were broken for match types other than :is. I have
3102 applied a patch sanctioned by the Sieve maintainer.
c688b954 3103
ebb6e6d5
PH
3104PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
3105 the uid or gid is negative. A case of a negative gid caused this to be
3106 noticed. The fix allows for either to be negative.
3107
9c4e8f60
PH
3108PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
3109 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
3110 overlooked.
3111
3112PH/36 The change PH/12 above was broken. Fixed it.
3113
d7174846
PH
3114PH/37 Exim used to check for duplicate addresses in the middle of routing, on
3115 the grounds that routing the same address twice would always produce the
3116 same answer. This might have been true once, but it is certainly no
3117 longer true now. Routing a child address may depend on the previous
3118 routing that produced that child. Some complicated redirection strategies
3119 went wrong when messages had multiple recipients, and made Exim's
3120 behaviour dependent on the order in which the addresses were given.
3121
3122 I have moved the duplicate checking until after the routing is complete.
3123 Exim scans the addresses that are assigned to local and remote
3124 transports, and removes any duplicates. This means that more work will be
3125 done, as duplicates will always all be routed, but duplicates are
3126 presumably rare, so I don't expect this is of any significance.
3127
3128 For deliveries to pipes, files, and autoreplies, the duplicate checking
3129 still happens during the routing process, since they are not going to be
3130 routed further.
3131
cfe75fc3
PH
3132PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
3133 It corrects a timeout issue with spamd. This is Ian's comment: "The
3134 background is that sometimes spamd either never reads data from a
3135 connection it has accepted, or it never writes response data. The exiscan
3136 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
3137 blindly assumes that writes won't block so it may never time out."
3138
be22d70e
PH
3139PH/39 Allow G after quota size as well as K and M.
3140
0612b098
PH
3141PH/40 The value set for $authenticated_id in an authenticator may not contain
3142 binary zeroes or newlines because the value is written to log lines and
3143 to spool files. There was no check on this. Now the value is run through
3144 the string_printing() function so that such characters are converted to
3145 printable escape sequences.
3146
2e0c1448
PH
3147PH/41 $message_linecount is a new variable that contains the total number of
3148 lines in the message. Compare $body_linecount, which is the count for the
3149 body only.
3150
447d236c
PH
3151PH/42 Exim no longer gives details of delivery errors for specific addresses in
3152 bounce and delay warning messages, except in certain special cases, which
3153 are as follows:
3154
3155 (a) An SMTP error message from a remote host;
3156 (b) A message specified in a :fail: redirection;
3157 (c) A message specified in a "fail" command in a system filter;
3158 (d) A message specified in a FAIL return from the queryprogram router;
3159 (e) A message specified by the cannot_route_message router option.
3160
3161 In these cases only, Exim does include the error details in bounce and
3162 warning messages. There are also a few cases where bland messages such
3163 as "unrouteable address" or "local delivery error" are given.
3164
d20976dc
PH
3165PH/43 $value is now also set for the "else" part of a ${run expansion.
3166
f656d135
PH
3167PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
3168 being worked on, but at least Exim now implements the latest version to
3169 play with."
3170
2e2a30b4
PH
3171PH/45 In a pipe transport, although a timeout while waiting for the pipe
3172 process to complete was treated as a delivery failure, a timeout while
3173 writing the message to the pipe was logged, but erroneously treated as a
3174 successful delivery. Such timeouts include transport filter timeouts. For
3175 consistency with the overall process timeout, these timeouts are now
3176 treated as errors, giving rise to delivery failures by default. However,
3177 there is now a new Boolean option for the pipe transport called
3178 timeout_defer, which, if set TRUE, converts the failures into defers for
3179 both kinds of timeout. A transport filter timeout is now identified in
3180 the log output.
3181
9176e9f0
PH
3182PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
3183 systems where "make" and "gmake" are different, calling "gmake" at top
3184 level broke things. I've arranged for the value of $(MAKE) to be passed
3185 from the Makefile to this script so that it can call the same version of
3186 "make".
3187
7982096b 3188
bbe902f0
PH
3189A note about Exim versions 4.44 and 4.50
3190----------------------------------------
3191
3192Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
3193changes of various kinds. As a consequence, a big documentation update was
3194needed. This delayed the release for rather longer than seemed good, especially
3195in the light of a couple of (minor) security issues. Therefore, the changes
3196that fixed bugs were backported into 4.43, to create a 4.44 maintenance
3197release. So 4.44 and 4.50 are in effect two different branches that both start
3198from 4.43.
3199
3200I have left the 4.50 change log unchanged; it contains all the changes since
32014.43. The change log for 4.44 is below; many of its items are identical to
3202those for 4.50. This seems to be the most sensible way to preserve the
3203historical information.
3204
3205
f7b63901 3206Exim version 4.50
495ae4b0
PH
3207-----------------
3208
5fe762f6
PH
3209 1. Minor wording change to the doc/README.SIEVE file.
3210
139059f6 3211 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 3212 computation of the current number of files was incorrect.
495ae4b0 3213
7086e875
PH
3214 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3215 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3216 place.
3217
35af9f61
PH
3218 4. Give more explanation in the error message when the command for a transport
3219 filter fails to execute.
3220
b668c215
PH
3221 5. There are several places where Exim runs a non-Exim command in a
3222 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3223 was being done only for the command run by the queryprogram router. It is
3224 now done for all such subprocesses. The other cases are: ${run, transport
3225 filters, and the commands run by the lmtp and pipe transports.
3226
a494b1e1
PH
3227 6. Added CONFIGURE_GROUP build-time option.
3228
3229 7. Some older OS have a limit of 256 on the maximum number of file
3230 descriptors. Exim was using setrlimit() to set 1000 as a large value
3231 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3232 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 3233
c5fcb476
PH
3234 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3235 was an oversight, and furthermore, ever since the addition of extra
3236 controls (e.g. 4.43/32), the checks on when to allow different forms of
3237 "control" were broken. There should now be diagnostics for all cases when a
3238 control that does not make sense is encountered.
3239
69358f02
PH
3240 9. Added the /retain_sender option to "control=submission".
3241
5be20824
PH
324210. $recipients is now available in the predata ACL (oversight).
3243
eb2c0248
PH
324411. Tidy the search cache before the fork to do a delivery from a message
3245 received from the command line. Otherwise the child will trigger a lookup
3246 failure and thereby defer the delivery if it tries to use (for example) a
3247 cached ldap connection that the parent has called unbind on.
3248
2a3eea10
PH
324912. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3250 of $address_data from the recipient verification was clobbered by the
3251 sender verification.
3252
325313. The value of address_data from a sender verification is now available in
3254 $sender_address_data in subsequent conditions in the ACL statement.
3255
23c7ff99
PH
325614. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
3257
4deaf07d
PH
325815. Added a new option "connect=<time>" to callout options, to set a different
3259 connection timeout.
3260
926e1192
PH
326116. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3262 was its contents. (It was OK if the option was not defined at all.)
3263
650edc6f
PH
326417. A "Completed" log line is now written for messages that are removed from
3265 the spool by the -Mrm option.
3266
2c7db3f5
PH
326718. New variables $sender_verify_failure and $recipient_verify_failure contain
3268 information about exactly what failed.
3269
3d235903
PH
327019. Added -dd to debug only the daemon process.
3271
7c7ad977
PH
327220. Incorporated Michael Haardt's patch to ldap.c for improving the way it
3273 handles timeouts, both on the server side and network timeouts. Renamed the
3274 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
3275
981756db
PH
327621. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
3277 It is now set to "smtps".
3278
d4eb88df
PH
327922. $host_address is now set to the target address during the checking of
3280 ignore_target_hosts.
3281
328223. When checking ignore_target_hosts for an ipliteral router, no host name was
3283 being passed; this would have caused $sender_host_name to have been used if
3284 matching the list had actually called for a host name (not very likely,
3285 since this list is usually IP addresses). A host name is now passed as
3286 "[x.x.x.x]".
3287
7d468ab8
PH
328824. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3289 code that specifies a non-restarting handler (typically sigaction() in
3290 modern systems) in an attempt to fix a rare and obscure crash bug.
3291
329225. Narrowed the window for a race in the daemon that could cause it to ignore
3293 SIGCHLD signals. This is not a major problem, because they are used only to
3294 wake it up if nothing else does.
3295
62c0818f
PH
329626. A malformed maildirsize file could cause Exim to calculate negative values
3297 for the mailbox size or file count. Odd effects could occur as a result.
3298 The maildirsize information is now recalculated if the size or filecount
3299 end up negative.
3300
26034054
PH
330127. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3302 support for a long time. Removed HAVE_SYS_VFS_H.
3303
af66f652
PH
330428. Installed the latest version of exipick from John Jetmore.
3305
90af77f4
PH
330629. In an address list, if the pattern was not a regular expression, an empty
3307 subject address (from a bounce message) matched only if the pattern was an
3308 empty string. Non-empty patterns were not even tested. This was the wrong
3309 because it is perfectly reasonable to use an empty address as part of a
3310 database query. An empty address is now tested by patterns that are
3311 lookups. However, all the other forms of pattern expect the subject to
3312 contain a local part and a domain, and therefore, for them, an empty
3313 address still always fails if the pattern is not itself empty.
3314
d8ef3577
PH
331530. Exim went into a mad DNS loop when attempting to do a callout where the
3316 host was specified on an smtp transport, and looking it up yielded more
3317 than one IP address.
3318
5cb8cbc6
PH
331931. Re-factored the code for checking spool and log partition space into a
3320 function that finds that data and another that does the check. The former
3321 is then used to implement four new variables: $spool_space, $log_space,
3322 $spool_inodes, and $log_inodes.
3323
14702f5b
PH
332432. The RFC2047 encoding function was originally intended for short strings
3325 such as real names; it was not keeping to the 75-character limit for
3326 encoded words that the RFC imposes. It now respects the limit, and
3327 generates multiple encoded words if necessary. To be on the safe side, I
3328 have increased the buffer size for the ${rfc2047: expansion operator from
3329 1024 to 2048 bytes.
3330
063b1e99
PH
333133. It is now permitted to omit both strings after an "if" condition; if the
3332 condition is true, the result is "true". As before, when the second string
3333 is omitted, a false condition yields an empty string. This makes it less
3334 cumbersome to write custom ACL and router conditions.
3335
652e1b65
PH
333634. Failure to deliver a bounce message always caused it to be frozen, even if
3337 there was an errors_to setting on the router. The errors_to setting is now
3338 respected.
3339
6f0c9a4f
PH
334035. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3341 canonical form (fully expanded) before being placed in
3342 $sender_host_address.
3343
33397d19
PH
334436. The table in the code that translates DNS record types into text (T_A to
3345 "A" for instance) was missing entries for NS and CNAME. It is just possible
3346 that this could have caused confusion if both these types were looked up
3347 for the same domain, because the text type is used as part of Exim's
3348 per-process caching. But the chance of anyone hitting this buglet seems
3349 very small.
3350
7bb56e1f
PH
335137. The dnsdb lookup has been extended in a number of ways.
3352
3353 (1) There is a new type, "zns", which walks up the domain tree until it
3354 finds some nameserver records. It should be used with care.
3355
ea3bc19b
PH
3356 (2) There is a new type, "mxh", which is like "mx" except that it returns
3357 just the host names, not the priorities.
3358
3359 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
3360 looked up. The behaviour when one of the lookups defers can be
3361 controlled by a keyword.
7bb56e1f 3362
ea3bc19b 3363 (4) It is now possible to specify the separator character for use when
7bb56e1f 3364 multiple records are returned.
33397d19 3365
0bcb2a0e
PH
336638. The dnslists ACL condition has been extended: it is now possible to supply
3367 a list of IP addresses and/or domains to be looked up in a particular DNS
3368 domain.
3369
2ac0e484
PH
337039. Added log_selector=+queue_time_overall.
3371
4e1fde53
PH
337240. When running the queue in the test harness, wait just a tad after forking a
3373 delivery process, to get repeatability of debugging output.
3374
de365ded
PH
337541. Include certificate and key file names in error message when GnuTLS fails
3376 to set them up, because the GnuTLS error message doesn't include the name
3377 of the failing file when there is a problem reading it.
3378
f05da2e8
PH
337942. Allow both -bf and -bF in the same test run.
3380
d6453af2
PH
338143. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3382
f7b63901
PH
3383