Bugzilla #502
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
0806a9c5 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.508 2007/05/14 18:56:25 magnus Exp $
495ae4b0
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
eb4c0de6
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6Exim version 4.68
7-----------------
8
9PH/01 Another patch from the Sieve maintainer.
10
6a3bceb1
PH
11PH/02 When an IPv6 address is converted to a string for single-key lookup
12 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
13 dots are used instead of colons so that keys in lsearch files need not
14 contain colons. This was done some time before quoting was made available
15 in lsearch files. However, iplsearch files do require colons in IPv6 keys
16 (notated using the quote facility) so as to distinguish them from IPv4
17 keys. This meant that lookups for IP addresses in host lists did not work
18 for iplsearch lookups.
19
20 This has been fixed by arranging for IPv6 addresses to be expressed with
21 colons if the lookup type is iplsearch. This is not incompatible, because
22 previously such lookups could never work.
23
24 The situation is now rather anomolous, since one *can* have colons in
25 ordinary lsearch keys. However, making the change in all cases is
26 incompatible and would probably break a number of configurations.
27
2e30fa9d
TK
28TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
29 version.
30
0806a9c5
MH
31MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
32 conversion specification without a maximum field width, thereby enabling
33 a rogue spamd server to cause a buffer overflow. While nobody in their
34 right mind would setup Exim to query an untrusted spamd server, an
35 attacker that gains access to a server running spamd could potentially
36 exploit this vulnerability to run arbitrary code as the Exim user.
37
eb4c0de6 38
b4ed4da0
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39Exim version 4.67
40-----------------
41
22ad45c9
MH
42MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
43 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
44 Jan Srzednicki.
45
b4ed4da0
PH
46PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
47 issue a MAIL command.
48
431b7361
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49PH/02 In an ACL statement such as
50
51 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
52
53 if a client was not listed at all, or was listed with a value other than
54 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
55 the condition was not true (as it should be), so access was not denied.
56 The bug was that the ! inversion was incorrectly passed on to the second
57 item. This has been fixed.
58
59PH/03 Added additional dnslists conditions == and =& which are different from
60 = and & when the dns lookup returns more than one IP address.
61
83da1223
PH
62PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
63 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
64
54fc8428
PH
65PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
66 FSYNC, which compiles an option called disable_fsync that allows for
67 bypassing fsync(). The documentation is heavily laced with warnings.
68
34c5e8dd
SC
69SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
70
bbe15da8
PH
71PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
72 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
73 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
74 including adding "make clean"; (3) Added -fPIC when compiling the test
75 dynamically loaded module, to get rid of a warning.
76
0e8a9471
MH
77MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
78 message fails, move_frozen_messages = true and ignore_bounce_errors_after
79 = 0s. The bug is otherwise harmless.
80
f0872424
PH
81PH/07 There was a bug in the dovecot authenticator such that the value of
82 $auth1 could be overwritten, and so not correctly preserved, after a
83 successful authentication. This usually meant that the value preserved by
84 the server_setid option was incorrect.
85
b01dd148
PH
86PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
87
6bf342e1
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88PH/09 Installed PCRE release 7.0.
89
273f34d0
PH
90PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
91 run for batched SMTP input. It is now run at the start of every message
92 in the batch. While fixing this I discovered that the process information
93 (output by running exiwhat) was not always getting set for -bs and -bS
94 input. This is fixed, and it now also says "batched" for BSMTP.
95
cf8b11a5
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96PH/11 Added control=no_pipelining.
97
41c7c167
PH
98PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
99 patch, slightly modified), and move the expansion of helo_data till after
100 the connection is made in the smtp transport (so it can use these
101 values).
102
9c57cbc0
PH
103PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
104
f3f065bb
PH
105PH/14 Added log_selector = +pid.
106
047bdd8c
PH
107PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
108
0ce9abe6
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109PH/16 Add ${if forany and ${if forall.
110
0e22dfd1
PH
111PH/17 Added dsn_from option to vary the From: line in DSNs.
112
4c590bd1
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113PH/18 Flush SMTP output before performing a callout, unless control =
114 no_callout_flush is set.
115
09945f1e
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116PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
117 was true (the default) a successful delivery failed to delete the retry
118 item, thus causing premature timeout of the address. The bug is now
119 fixed.
120
c51b8e75
PH
121PH/20 Added hosts_avoid_pipelining to the smtp transport.
122
e28326d8
PH
123PH/21 Long custom messages for fakedefer and fakereject are now split up
124 into multiline reponses in the same way that messages for "deny" and
125 other ACL rejections are.
126
75b1493f
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127PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
128 with slight modification.
129
7c5214ec
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130PH/23 Applied sieve patches from the maintainer "tracking the latest notify
131 draft, changing the syntax and factoring some duplicate code".
132
4311097e
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133PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
134 for deliveries of the second and subsequent messages over the same SMTP
135 connection.
136
29f89cad
PH
137PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
138 ${reduce, with only minor "tidies".
139
5e687460
SC
140SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
141
c3611384
PH
142PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
143 expansion side effects.
144
5a11a7b4
PH
145PH/27 When a message times out after an over-quota error from an Exim-imposed
146 quota, the bounce message says "mailbox is full". This message was not
147 being given when it was a system quota that was exceeded. It now should
148 be the same.
149
0e20aff9
MH
150MH/03 Made $recipients available in local_scan(). local_scan() already has
151 better access to the recipient list through recipients_list[], but
152 $recipients can be useful in postmaster-provided expansion strings.
153
ca86f471
PH
154PH/28 The $smtp_command and $smtp_command_argument variables were not correct
155 in the case of a MAIL command with additional options following the
156 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
157 were accidentally chopped off.
158
a14e5636
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159PH/29 SMTP synchronization checks are implemented when a command is read -
160 there is a check that no more input is waiting when there shouldn't be
161 any. However, for some commands, a delay in an ACL can mean that it is
162 some time before the response is written. In this time, more input might
163 arrive, invalidly. So now there are extra checks after an ACL has run for
164 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
165 pipelining has not been advertised.
166
ec95d1a6
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167PH/30 MH's patch to allow iscntrl() characters to be list separators.
168
42855d71
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169PH/31 Unlike :fail:, a custom message specified with :defer: was not being
170 returned in the SMTP response when smtp_return_error_details was false.
171 This has been fixed.
172
57c2c631
PH
173PH/32 Change the Dovecot authenticator to use read() and write() on the socket
174 instead of the C I/O that was originally supplied, because problems were
175 reported on Solaris.
176
58c01c94
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177PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
178 Exim which did not show up earlier: it was assuming that a call to
179 SSL_CTX_set_info_callback() might give an error value. In fact, there is
180 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
181 was a macro that became an assignment, so it seemed to work. This has
182 changed to a proper function call with a void return, hence the compile
183 error. Exim's code has been fixed.
184
dee5a20a
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185PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
186 cpus.
187
d2ee6114
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188PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
189
b2d5182b
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190PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
191
79749a79
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192PH/37 If a message is not accepted after it has had an id assigned (e.g.
193 because it turns out to be too big or there is a timeout) there is no
3ce62588
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194 "Completed" line in the log. When some messages of this type were
195 selected by exigrep, they were listed as "not completed". Others were
196 picked up by some special patterns. I have improved the selection
197 criteria to be more general.
79749a79 198
c456d9bb
PH
199PH/38 The host_find_failed option in the manualroute router can now be set
200 to "ignore", to completely ignore a host whose IP address cannot be
201 found. If all hosts are ignored, the behaviour is controlled by the new
202 host_all_ignored option.
203
cd9868ec
PH
204PH/39 In a list of hosts for manualroute, if one item (either because of multi-
205 homing or because of multiple MX records with /mx) generated more than
206 one IP address, and the following item turned out to be the local host,
207 all the secondary addresses of the first item were incorrectly removed
208 from the list, along with the local host and any following hosts (which
209 is what is supposed to happen).
210
ebeaf996
PH
211PH/40 When Exim receives a message, it writes the login name, uid, and gid of
212 whoever called Exim into the -H file. In the case of the daemon it was
213 behaving confusingly. When first started, it used values for whoever
214 started the daemon, but after a SIGHUP it used the Exim user (because it
215 calls itself on a restart). I have changed the code so that it now always
216 uses the Exim user.
217
2679d413
PH
218PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
219 message are rejected with the same error (e.g. no authentication or bad
220 sender address), and a DATA command is nevertheless sent (as can happen
221 with PIPELINING or a stupid MUA), the error message that was given to the
222 RCPT commands is included in the rejection of the DATA command. This is
223 intended to be helpful for MUAs that show only the final error to their
224 users.
225
84024b72
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226PH/42 Another patch from the Sieve maintainer.
227
8005d38e
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228SC/02 Eximstats - Differentiate between permanent and temporary rejects.
229 Eximstats - Fixed some broken HTML links and added missing column headers
230 (Jez Hancock).
231 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
232 columns for Rejects, Temp Rejects, Ham, and Spam rows.
233
3298c6c6
SC
234SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
235
a43a27c5
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236PH/43 Yet another patch from the Sieve maintainer.
237
58eb016e 238PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
239 the response to the final '.' that terminates a message, but only in the
240 case where the client has not sent further data following the '.'
241 (unfortunately, this is allowed). However, in many cases there won't be
242 any further data because there won't be any more messages to send. A call
243 to select() can be used: if it shows that the input is "ready", there is
244 either input waiting, or the socket has been closed. An attempt to read
245 the next input character can distinguish the two cases. Previously, Exim
58eb016e 246 would have sent an OK response which the client would never have see.
563b63fa
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247 This could lead to message repetition. This fix should cure that, at
248 least in a lot of common cases.
58eb016e 249
b43a74ea
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250PH/45 Do not advertise STARTTLS in response to HELP unless it would be
251 advertised in response to EHLO.
252
b4ed4da0 253
5dd1517f
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254Exim version 4.66
255-----------------
256
257PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
258 fixed by 4.65/MH/01 (is this a record?) are fixed:
259
260 (i) An empty string was always treated as zero by the numeric comparison
261 operators. This behaviour has been restored.
262
263 (ii) It is documented that the numeric comparison operators always treat
264 their arguments as decimal numbers. This was broken in that numbers
265 starting with 0 were being interpreted as octal.
266
267 While fixing these problems I realized that there was another issue that
268 hadn't been noticed. Values of message_size_limit (both the global option
269 and the transport option) were treated as octal if they started with 0.
270 The documentation was vague. These values are now always treated as
271 decimal, and I will make that clear in the documentation.
272
273
93cfa765
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274Exim version 4.65
275-----------------
276
277TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
278 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
279 versions. (#438)
280
d6066548
MH
281MH/01 Don't check that the operands of numeric comparison operators are
282 integers when their expansion is in "skipping" mode (fixes bug
283 introduced by 4.64-PH/07).
284
4362ff0d
PH
285PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
286 child addresses, Exim now panics and dies. Previously, because the count
287 is held in a short int, deliveries were likely to be lost. As such a
288 large number of recipients for a single message is ridiculous
289 (performance will be very, very poor), I have chosen to impose a limit
290 rather than extend the field.
291
93cfa765 292
944e9e9c
TF
293Exim version 4.64
294-----------------
aa41d2de 295
21d74bd9
TK
296TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
297 leftover -K file (the existence of which was triggered by #402).
298 While we were at it, introduced process PID as part of the -K
299 filename. This should rule out race conditions when creating
300 these files.
301
302TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
303 processing considerably. Previous code took too long for large mails,
304 triggering a timeout which in turn triggers #401.
305
306TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
307 in the DK code in transports.c. sendfile() is not really portable,
308 hence the _LINUX specificness.
944e9e9c
TF
309
310TF/01 In the add_headers option to the mail command in an Exim filter,
311 there was a bug that Exim would claim a syntax error in any
312 header after the first one which had an odd number of characters
313 in the field name.
314
2b1c6e3a
PH
315PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
316 callout verification, Exim cached a "reject" for the entire domain. This
317 is correct for most verifications, but it is not correct for a recipient
318 verification with use_sender or use_postmaster set, because in that case
319 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
320 case of MAIL FROM:<> rejection from other early rejections (e.g.
321 rejection of HELO). When verifying a recipient using a non-null MAIL
322 address, the cache is ignored if it shows MAIL FROM:<> rejection.
323 Whatever the result of the callout, the value of the domain cache is
324 left unchanged (for any other kind of callout, getting as far as trying
325 RCPT means that the domain itself is ok).
326
1f872c80
PH
327PH/02 Tidied a number of unused variable and signed/unsigned warnings that
328 gcc 4.1.1 threw up.
329
330PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
331 manifest itself as EPIPE rather than ECONNECT. When tidying away a
332 session, the daemon ignores ECONNECT errors and logs others; it now
333 ignores EPIPE as well.
334
d203e649
PH
335PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
336 (quoted-printable decoding).
337
cc2ed8f7 338PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 339 later the small subsequent patch to fix an introduced bug.
f951fd57 340
ddfcd446
PH
341PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
342
d45b1de8
PH
343PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
344
345PH/08 An error is now given if message_size_limit is specified negative.
346
38a0a95f 347PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 348 to be given (somewhat) arbitrary names.
38a0a95f 349
a2405d83
JJ
350JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
351 in 4.64-PH/09.
352
353JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
354 miscellaneous code fixes
355
6ea85e9a
PH
356PH/10 Added the log_reject_target ACL modifier to specify where to log
357 rejections.
358
26da7e20
PH
359PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
360 hostname. This is wrong, because it relates to the incoming message (and
361 probably the interface on which it is arriving) and not to the outgoing
362 callout (which could be using a different interface). This has been
363 changed to use the value of the helo_data option from the smtp transport
364 instead - this is what is used when a message is actually being sent. If
365 there is no remote transport (possible with a router that sets up host
366 addresses), $smtp_active_hostname is used.
6ea85e9a 367
14aa5a05 368PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 369 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
370 (a) The code assumed that strncpy() returns a negative number on buffer
371 overflow, which isn't the case. Replaced with Exim's string_format()
372 function.
373 (b) There were several signed/unsigned issues. I just did the minimum
374 hacking in of casts. There is scope for a larger refactoring.
375 (c) The code used strcasecmp() which is not a standard C function.
376 Replaced with Exim's strcmpic() function.
377 (d) The code set only $1; it now sets $auth1 as well.
378 (e) A simple test gave the error "authentication client didn't specify
379 service in request". It would seem that Dovecot has changed its
380 interface. Fortunately there's a specification; I followed it and
381 changed what the client sends and it appears to be working now.
382
ff75a1f7
PH
383PH/13 Added $message_headers_raw to provide the headers without RFC 2047
384 decoding.
385
e6f6568e
PH
386PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
387 address A is aliased to B and C, where B exists and C does not. Without
388 -v the output is "A verified" because verification stops after a
389 successful redirection if more than one address is generated. However,
390 with -v the child addresses are also verified. Exim was outputting "A
391 failed to verify" and then showing the successful verification for C,
392 with its parentage. It now outputs "B failed to verify", showing B's
393 parentage before showing the successful verification of C.
394
d6f6e0dc
PH
395PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
396 look up a TXT record in a specific list after matching in a combined
397 list.
398
322050c2
PH
399PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
400 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
401 they consult the DNS. I had assumed they would set it the way they
402 wanted; and indeed my experiments on Linux seem to show that in some
403 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
404 To be on the safe side, however, I have now made the interface to
405 host_find_byname() similar to host_find_bydns(), with an argument
406 containing the DNS resolver options. The host_find_byname() function now
407 sets these options at its start, just as host_find_bydns() does. The smtp
408 transport options dns_qualify_single and dns_search_parents are passed to
409 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
410 of host_find_byname() use the default settings of RES_DEFNAMES
411 (qualify_single) but not RES_DNSRCH (search_parents).
412
08955dd3
PH
413PH/17 Applied (a modified version of) Nico Erfurth's patch to make
414 spool_read_header() do less string testing, by means of a preliminary
415 switch on the second character of optional "-foo" lines. (This is
416 overdue, caused by the large number of possibilities that now exist.
417 Originally there were few.) While I was there, I also converted the
418 str(n)cmp tests so they don't re-test the leading "-" and the first
419 character, in the hope this might squeeze out yet more improvement.
420
1eccaa59
PH
421PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
422 flag allowing group syntax was set by the header_syntax check but not
423 turned off, possible causing trouble later; (2) The flag was not being
424 set at all for the header_verify test, causing "group"-style headers to
425 be rejected. I have now set it in this case, and also caused header_
426 verify to ignore an empty address taken from a group. While doing this, I
427 came across some other cases where the code for allowing group syntax
428 while scanning a header line wasn't quite right (mostly, not resetting
429 the flag correctly in the right place). These bugs could have caused
430 trouble for malformed header lines. I hope it is now all correct.
431
602e59e5
PH
432PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
433 with the "reply" argument non-NULL. The code, however (which originally
434 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
435 but it didn't always do it. This confused somebody who was copying the
436 code for some other use. I have removed all the tests.
437
411ef850
PH
438PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
439 feature that was used to support insecure browsers during the U.S. crypto
440 embargo. It requires special client support, and Exim is probably the
441 only MTA that supported it -- and would never use it because real RSA is
442 always available. This code has been removed, because it had the bad
443 effect of slowing Exim down by computing (never used) parameters for the
444 RSA_EXPORT functionality.
445
7befa435
PH
446PH/21 On the advice of Timo Sirainen, added a check to the dovecot
447 authenticator to fail if there's a tab character in the incoming data
448 (there should never be unless someone is messing about, as it's supposed
449 to be base64-encoded). Also added, on Timo's advice, the "secured" option
450 if the connection is using TLS or if the remote IP is the same as the
451 local IP, and the "valid-client-cert option" if a client certificate has
452 been verified.
453
48da4259 454PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
455 authenticators. This can be used for authorization after authentication
456 succeeds. (In the case of plaintext, it servers for both authentication
457 and authorization.)
458
48da4259
PH
459PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
460 if any retry times were supplied.
461
d1d5595c
PH
462PH/24 Exim crashed if verify=helo was activated during an incoming -bs
463 connection, where there is no client IP address to check. In this
464 situation, the verify now always succeeds.
465
0ef732d9
PH
466PH/25 Applied John Jetmore's -Mset patch.
467
328895cc
PH
468PH/26 Added -bem to be like -Mset, but loading a message from a file.
469
fd700877
PH
470PH/27 In a string expansion for a processed (not raw) header when multiple
471 headers of the same name were present, leading whitespace was being
472 removed from all of them, but trailing whitespace was being removed only
473 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
474 before concatenation. Completely empty headers in a concatenation (as
475 before) are ignored.
fd700877 476
8dce1a6f
PH
477PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
478 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
479
17af4a17
PH
480PH/29 [Removed. This was a change that I later backed out, and forgot to
481 correct the ChangeLog entry (that I had efficiently created) before
482 committing the later change.]
f6c332bd
PH
483
484PH/30 Exim was sometimes attempting to deliver messages that had suffered
485 address errors (4xx response to RCPT) over the same connection as other
486 messages routed to the same hosts. Such deliveries are always "forced",
487 so retry times are not inspected. This resulted in far too many retries
488 for the affected addresses. The effect occurred only when there were more
489 hosts than the hosts_max_try setting in the smtp transport when it had
490 the 4xx errors. Those hosts that it had tried were not added to the list
491 of hosts for which the message was waiting, so if all were tried, there
492 was no problem. Two fixes have been applied:
493
494 (i) If there are any address or message errors in an SMTP delivery, none
495 of the hosts (tried or untried) are now added to the list of hosts
496 for which the message is waiting, so the message should not be a
497 candidate for sending over the same connection that was used for a
498 successful delivery of some other message. This seems entirely
499 reasonable: after all the message is NOT "waiting for some host".
500 This is so "obvious" that I'm not sure why it wasn't done
501 previously. Hope I haven't missed anything, but it can't do any
502 harm, as the worst effect is to miss an optimization.
503
504 (ii) If, despite (i), such a delivery is accidentally attempted, the
505 routing retry time is respected, so at least it doesn't keep
506 hammering the server.
507
c1114884
PH
508PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
509 in ${readsocket because some servers need this prod.
510
7a0743eb
PH
511PH/32 Added some extra debug output when updating a wait-xxx database.
512
0d85fa3f
PH
513PH/33 The hint "could be header name not terminated by colon", which has been
514 given for certain expansion errors for a long time, was not being given
515 for the ${if def:h_colon_omitted{... case.
516
1bf43b78
PH
517PH/34 The spec says: "With one important exception, whenever a domain list is
518 being scanned, $domain contains the subject domain." There was at least
519 one case where this was not true.
520
520de300
PH
521PH/35 The error "getsockname() failed: connection reset by peer" was being
522 written to the panic log as well as the main log, but it isn't really
523 panic-worthy as it just means the connection died rather early on. I have
524 removed the panic log writing for the ECONNRESET error when getsockname()
525 fails.
526
48c7f9e2
PH
527PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
528 runs only) independently of the message's sender address. This meant
529 that, if the 4xx error was in fact related to the sender, a different
530 message to the same recipient with a different sender could confuse
531 things. In particualar, this can happen when sending to a greylisting
532 server, but other circumstances could also provoke similar problems.
533 I have changed the default so that the retry time for these errors is now
534 based a combination of the sender and recipient addresses. This change
535 can be overridden by setting address_retry_include_sender=false in the
536 smtp transport.
537
99ea1c86
PH
538PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
539 remote server are returned as part of bounce messages. This was not
540 happening for LMTP over a pipe (the lmtp transport), but now it is the
541 same for both kinds of LMTP.
542
a2042e78
PH
543PH/38 Despite being documented as not happening, Exim was rewriting addresses
544 in header lines that were in fact CNAMEs. This is no longer the case.
545
4fbcfc2e
PH
546PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
547 and queue runs started by the daemon processed all messages. This has
548 been fixed so that -R and -S can now usefully be given with -q<time>.
549
aa41d2de
PH
550PH/40 Import PCRE release 6.7 (fixes some bugs).
551
af561417
PH
552PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
553
3cc66b45
PH
554PH/42 Give an error if -q is specified more than once.
555
194cc0e4
PH
556PH/43 Renamed the variables $interface_address and $interface_port as
557 $received_ip_address and $received_port, to make it clear that these
558 values apply to message reception, and not to the outgoing interface when
559 a message is delivered. (The old names remain recognized, of course.)
560
a401ddaa
PH
561PH/44 There was no timeout on the connect() call when using a Unix domain
562 socket in the ${readsocket expansion. There now is.
563
4e88a19f
PH
564PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
565 be meaningful with "accept".
566
d7d7b289
SC
567SC/01 Eximstats V1.43
568 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
569
570SC/02 Eximstats V1.44
571 Use a glob alias rather than an array ref in the generated
572 parser. This improves both readability and performance.
573
574SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
575 Collect SpamAssassin and rejection statistics.
576 Don't display local sender or destination tables unless
577 there is data to show.
578 Added average volumes into the top table text output.
579
580SC/04 Eximstats V1.46
581 Collect data on the number of addresses (recipients)
582 as well as the number of messages.
583
584SC/05 Eximstats V1.47
585 Added 'Message too big' to the list of mail rejection
586 reasons (thanks to Marco Gaiarin).
587
588SC/06 Eximstats V1.48
589 Mainlog lines which have GMT offsets and are too short to
590 have a flag are now skipped.
591
592SC/07 Eximstats V1.49 (Alain Williams)
593 Added the -emptyok flag.
594
595SC/08 Eximstats V1.50
596 Fixes for obtaining the IP address from reject messages.
597
0ea2a468
JJ
598JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
599 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
600 whitesspace changes from 4.64-PH/27
601
602JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
603 match 4.64-PH/13
604
605JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
606 are found, allow negative numbers in numeric criteria)
607
608JJ/06 exipick.20061117.2, added new $message_body_missing variable
609
610JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
611 to match changes made in 4.64-PH/43
612
8a10f5a4
PH
613PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
614
30e18802
PH
615PH/47 Put in an explicit test for a DNS lookup of an address record where the
616 "domain" is actually an IP address, and force a failure. This locks out
617 those revolvers/nameservers that support "A-for-A" lookups, in
618 contravention of the specifications.
619
55728a4f
PH
620PH/48 When a host name was looked up from an IP address, and the subsequent
621 forward lookup of the name timed out, the host name was left in
622 $sender_host_name, contrary to the specification.
d7d7b289 623
d7837193
PH
624PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
625 restricted to single-key lookups, Exim was not diagnosing an error if
626 * or *@ was used with a query-style lookup.
627
87054a31
PH
628PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
629
ea2c01d2
MH
630MH/01 local_scan ABI version incremented to 1.1. It should have been updated
631 long ago, but noone interested enough thought of it. Let's just say that
632 the "1.1" means that there are some new functions that weren't there at
633 some point in the past.
634
e4fa6968
PH
635PH/51 Error processing for expansion failure of helo_data from an smtp
636 transport during callout processing was broken.
637
56f5d9bd
PH
638PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
639 tested/used via the -bh/-bhc/-bs options.
640
922e1c28
PH
641PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
642 bug, fixed in subsequent PCRE releases).
643
21eb6e72
PH
644PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
645 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
646
a0540757
PH
647PH/55 Check for a ridiculously long file name in exim_dbmbuild.
648
944e9e9c 649
478be7b0
SC
650Exim version 4.63
651-----------------
652
653SC/01 Use a glob alias rather than an array ref in eximstats generated
654 parser. This improves both readability and performance.
655
656SC/02 Collect SpamAssassin and rejection statistics in eximstats.
657 Don't display local sender or destination tables in eximstats unless
658 there is data to show.
659 Added average volumes into the eximstats top table text output.
660
661SC/03 Collect data on the number of addresses (recipients) as well
662 as the number of messages in eximstats.
663
2b965a65
TF
664TF/01 Correct an error in the documentation for the redirect router. Exim
665 does (usually) call initgroups() when daemonizing.
478be7b0 666
45b91596
PH
667TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
668 with consistent privilege compared to when running as a daemon.
478be7b0 669
c59f5781
TF
670TF/03 Note in the spec that $authenticated_id is not set for local
671 submissions from trusted users.
672
90fc3069
TF
673TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
674 Thanks to Dean Brooks <dean@iglou.com> for the patch.
675
6083aca0
TF
676TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
677 by adding some example configuration directives to the default
678 configuration file. A little bit of work is required to uncomment the
679 directives and define how usernames and passwords are checked, but
680 there is now a framework to start from.
681
765b530f
PH
682PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
683 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
684 without this. I don't know how relevant this is to other LDAP libraries.
685
4e167a8c
PH
686PH/02 Add the verb name to the "unknown ACL verb" error.
687
4608d683
PH
688PH/03 Magnus Holmgren's patch for filter_prepend_home.
689
b8dc3e4a
PH
690PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
691
5418e93b
PH
692PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
693 directory not expanded when it should be if an expanded home directory
694 was set for the address (which is overridden by the transport).
695
b4a9bda2
PH
696PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
697 libradius.
698
45b91596
PH
699PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
700 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
701 because it is too late at that time, and has no effect.
702
5547e2c5
PH
703PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
704 security issue with \' (bugzilla #107). I could not use the
705 PQescapeStringConn() function, because it needs a PGconn value as one of
706 its arguments.
707
dbcef0ea
PH
708PH/08 When testing addresses using -bt, indicate those final addresses that
709 are duplicates that would not cause an additional delivery. At least one
710 person was confused, thinking that -bt output corresponded to deliveries.
711 (Suppressing duplicates isn't a good idea as you lose the information
712 about possibly different redirections that led to the duplicates.)
713
25257489
PH
714PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
715 systems where poll() doesn't work, in particular OS X.
716
c816d124
PH
717PH/10 Added more information to debugging output for retry time not reached.
718
a9ccd69a
PH
719PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
720 operations in malware.c.
721
75fa1910
PH
722PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
723 signatures.
724
a7d7aa58
PH
725PH/13 If write_rejectlog was set false when logging was sent to syslog with
726 syslog_duplication set false, log lines that would normally be written
727 both the the main log and to the reject log were not written to syslog at
728 all.
729
42119b09
PH
730PH/14 In the default configuration, change the use of "message" in ACL warn
731 statements to "add_header".
732
41609df5
PH
733PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
734 not followed by a command (e.g. "seen endif").
735
a5bd321b
PH
736PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
737 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
738 latter.
739
e85a7ad5 740PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
741 so that it is now:
742
e85a7ad5
PH
743 ${if or { \
744 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
745 { match{$h_precedence:}{(?i)bulk|list|junk} } \
746 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
747 }{no}{yes}}
748
e85a7ad5
PH
749 The Auto-Submitted: and various List- headers are standardised, whereas I
750 don't think Precedence: ever was.
5dff5817 751
d8fe1c03
PH
752PH/18 Refactored debugging code in route_finduser() to show more information,
753 in particular, the error code if getpwnam() issues one.
754
16282d2b
PH
755PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
756 This is apparently needed in addition to the PH/07 change above to avoid
757 any possible encoding problems.
758
35d40a98
PH
759PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
760 but not after initializing Perl.
761
034d99ab
PH
762PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
763 output them only if debugging. By default they are written stderr,
764 apparently, which is not desirable.
765
6ec97b1b
PH
766PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
767 queries.
768
e22ca4ac
JJ
769JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
770 --not options
771
772JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
773
33d73e3b
PH
774PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
775 authenticated or an ident call has been made. Suppress the default
776 values for $authenticated_id and $authenticated_sender (but permit -oMai
777 and -oMas) when testing with -bh.
778
9ecb03f3
PH
779PH/24 Re-jigged the order of the tests in the default configuration so that the
780 tests for valid domains and recipients precede the DNS black list and CSA
781 tests, on the grounds that those ones are more expensive.
782
084efe8d
PH
783PH/25 Exim was not testing for a space following SMTP commands such as EHLO
784 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
785 This bug exists in every version of Exim that I still have, right back to
786 0.12.
787
366fc9f0
PH
788PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
789 However, an attempt to turn on case-sensitivity in a regex key by
790 including (?-i) didn't work because the subject string was already
791 lowercased, and the effects were non-intuitive. It turns out that a
792 one-line patch can be used to allow (?-i) to work as expected.
793
c59f5781 794
c887c79e
TF
795Exim version 4.62
796-----------------
797
798TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
799 other effects) broke the use of negated acl sub-conditions.
800
1cce3af8
PH
801PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
802 patch).
803
afb3eaaf
PH
804PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
805 "Deny" causes Exim to reject the incoming connection with a 554 error.
806 Unfortunately, if there is a major crisis, such as a disk failure,
807 tcp-wrappers gives "deny", whereas what one would like would be some
808 kind of temporary error. A kludge has been added to help with this.
809 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
810 554 error is used if errno is still zero or contains ENOENT (which occurs
811 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
812 451 error is used.
813
e173618b
PH
814PH/03 Add -lutil to the default FreeBSD LIBS setting.
815
dd16e114
PH
816PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
817 errors. Otherwise a message that provokes a temporary error (when other
818 messages do not) can cause a whole host to time out.
819
f7fd3850
PH
820PH/05 Batch deliveries by appendfile and pipe transports did not work when the
821 addresses were routed directly to files or pipes from a redirect router.
822 File deliveries just didn't batch; pipe deliveries might have suffered
823 odd errors.
824
d87df92c
PH
825PH/06 A failure to get a lock for a hints database would erroneously always say
826 "Failed to get write lock", even when it was really a read lock.
827
7e9f683d
PH
828PH/07 The appendfile transport was creating MBX lock files with a fixed mode
829 of 0600. This has been changed to use the value of the lockfile_mode
830 option (which defaults to 0600).
831
bfad5236
PH
832PH/08 Applied small patch from the Sieve maintainer.
833
01c490df
PH
834PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
835 folder from quota calculations, a direct delivery into this folder messed
836 up the contents of the maildirsize file. This was because the regex was
837 used only to exclude .Trash (or whatever) when the size of the mailbox
838 was calculated. There was no check that a delivery was happening into an
839 excluded directory. This bug has been fixed by ignoring all quota
840 processing for deliveries into excluded directories.
841
d6629cdc
PH
842PH/10 Added the maildirfolder_create_regex option to appendfile.
843
1cce3af8 844
214e2000
PH
845Exim version 4.61
846-----------------
847
848PH/01 The code for finding all the local interface addresses on a FreeBSD
849 system running IPv6 was broken. This may well have applied to all BSD
850 systems, as well as to others that have similar system calls. The broken
851 code found IPv4 interfaces correctly, but gave incorrect values for the
852 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
853 that it would not match correctly against @[] and not recognize the IPv6
854 addresses as local.
855
f9daeae0
PH
856PH/02 The ipliteral router was not recognizing addresses of the form user@
857 [ipv6:....] because it didn't know about the "ipv6:" prefix.
858
7e66e54d
PH
859PH/03 Added disable_ipv6.
860
c8ea1597
PH
861PH/04 Changed $reply_address to use the raw form of the headers instead of the
862 decoded form, because it is most often used to construct To: headers
863 lines in autoreplies, and the decoded form may well be syntactically
864 invalid. However, $reply_address has leading white space removed, and all
865 newlines turned into spaces so that the autoreply transport does not
866 grumble.
867
911f6fde
PH
868PH/05 If group was specified without a user on a router, and no group or user
869 was specified on a transport, the group from the router was ignored.
870
47ca6d6c
PH
871PH/06 Increased the number of ACL variables to 20 of each type, and arranged
872 for visible compile-time settings that can be used to change these
873 numbers, for those that want even more. Backwards compatibility with old
874 spool files has been maintained. However, going back to a previous Exim
875 release will lost any variables that are in spool files.
876
ed0e9820
PH
877PH/07 Two small changes when running in the test harness: increase delay when
878 passing a TCP/IP connection to a new process, in case the original
879 process has to generate a bounce, and remove special handling of
880 127.0.0.2 (sic), which is no longer necessary.
881
eff37e47
PH
882PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
883 be the same on different OS.
884
1921d2ea
PH
885PH/09 Moved a debug statement in filter processing to avoid a race problem when
886 testing.
887
b3f69ca8
JJ
888JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
889 whether --show-vars was specified or not
890
891JJ/02 exipick: Added support for new ACL variable spool format introduced
892 in 4.61-PH/06
893
424a1c63
PH
894PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
895 syntactically invalid From: or Reply-to: line, and a filter used this to
896 generate an autoreply, and therefore failed to obtain an address for the
897 autoreply, Exim could try to deliver to a non-existent relative file
898 name, causing unrelated and misleading errors. What now happens is that
899 it logs this as a hard delivery error, but does not attempt to create a
900 bounce message.
901
7a100415
PH
902PH/11 The exinext utility has a -C option for testing purposes, but although
903 the given file was scanned by exinext itself; it wasn't being passed on
904 when Exim was called.
905
19b9dc85
PH
906PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
907 an end-of-file indication when reading a command response.
908
309bd837
PH
909PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
910 compiled. In many other places in Exim, IPv6 addresses are always
911 recognized, so I have changed this. It also means that IPv4 domain
912 literals of the form [IPV4:n.n.n.n] are now always recognized.
913
59e82a2a
PH
914PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
915 used if the router is not running as root, for example, when verifying at
916 ACL time, or when using -bh. The debugging output from this situation was
917 non-existent - all you got was a failure to exec. I have made two
918 changes:
919
920 (a) Failures to set uid/gid, the current directory, or a process leader
921 in a subprocess such as that created by queryprogram now generate
922 suitable debugging ouput when -d is set.
923
924 (b) The queryprogram router detects when it is not running as root,
925 outputs suitable debugging information if -d is set, and then runs
926 the subprocess without attempting to change uid/gid.
927
9edc04ce
PH
928PH/15 Minor change to Makefile for building test_host (undocumented testing
929 feature).
930
1349e1e5
PH
931PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
932 additional section of a DNS packet that returns MX or SRV records.
933 Instead, it always explicitly searches for A/AAAA records. This avoids
934 major problems that occur when a DNS server includes only records of one
935 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
936 fixed another bug: if SRV records were looked up and the corresponding
937 address records were *not* found in the additional section, the port
938 values from the SRV records were lost.
939
ea49d0e1
PH
940PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
941 using the correct key (the original address) when searching the retry
942 rules in order to find which one to use for generating the retry hint.
943
064a94c9
PH
944PH/18 If quota_warn_message contains a From: header, Exim now refrains from
945 adding the default one. Similarly, if it contains a Reply-To: header, the
946 errors_reply_to option, if set, is not used.
947
727071f8
PH
948PH/19 When calculating a retry time, Exim used to measure the "time since
949 failure" by looking at the "first failed" field in the retry record. Now
950 it does not use this if it is later than than the arrival time of the
951 message. Instead it uses the arrival time. This makes for better
952 behaviour in cases where some deliveries succeed, thus re-setting the
953 "first failed" field. An example is a quota failure for a huge message
954 when small messages continue to be delivered. Without this change, the
955 "time since failure" will always be short, possible causing more frequent
956 delivery attempts for the huge message than are intended.
dd16e114 957 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 958
f78eb7c6
PH
959PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
960 $1, $2, $3) because the numerical variables can be reset during some
961 expansion items (e.g. "match"), thereby losing the authentication data.
962
21c28500
PH
963PH/21 Make -bV show the size of off_t variables so that the test suite can
964 decide whether to run tests for quotas > 2G.
965
966PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
967 mailbox_size, and mailbox_filecount in the appendfile transport. If a
968 filecount value is greater than 2G or if a quota value is greater than 2G
969 on a system where the size of off_t is not greater than 4, a panic error
970 is given.
971
1688f43b
PH
972PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
973 never match. The debug and -bh output now contains an explicit error
974 message indicating a malformed IPv4 address or mask.
975
976PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
977 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
978 PH/23 above applies.
979
9675b384
PH
980PH/25 Do not write to syslog when running in the test harness. The only
981 occasion when this arises is a failure to open the main or panic logs
982 (for which there is an explicit test).
983
6a3f1455
PH
984PH/26 Added the /no_tell option to "control=freeze".
985
dac79d3e
PH
986PH/27 If a host name lookup failed very early in a connection, for example, if
987 the IP address matched host_lookup and the reverse lookup yielded a name
988 that did not have a forward lookup, an error message of the form "no IP
989 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
990 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 991
5977a0b3
PH
992PH/28 An enabling patch from MH: add new function child_open_exim2() which
993 allows the sender and the authenticated sender to be set when
994 submitting a message from within Exim. Since child_open_exim() is
995 documented for local_scan(), the new function should be too.
996
c91535f3
PH
997PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
998 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
999 results in an empty string is now treated as unset.
1000
0d46a8c8
PH
1001PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1002
278c6e6c
PH
1003PH/31 Added sender_verify_fail logging option.
1004
2cbb4081
PH
1005PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1006 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1007 tidied the source and removed it altogether.
1008
3eef829e
PH
1009PH/33 When a queue run was abandoned because the load average was too high, a
1010 log line was always written; now it is written only if the queue_run log
1011 selector is set. In addition, the log line for abandonment now contains
1012 information about the queue run such as the pid. This is always present
1013 in "start" and "stop" lines but was omitted from the "abandon" line.
1014
1ab95fa6
PH
1015PH/34 Omit spaces between a header name and the colon in the error message that
1016 is given when verify = headers_syntax fails (if there are lots of them,
1017 the message gets confusing).
1018
230205fc
PH
1019PH/35 Change the default for dns_check_names_pattern to allow slashes within
1020 names, as there are now some PTR records that contain slashes. This check
1021 is only to protect against broken name servers that fall over on strange
1022 characters, so the fact that it applies to all lookups doesn't matter.
1023
75e0e026
PH
1024PH/36 Now that the new test suite is complete, we can remove some of the
1025 special code in Exim that was needed for the old test suite. For example,
1026 sorting DNS records because real resolvers return them in an arbitrary
1027 order. The new test suite's fake resolver always returns records in the
1028 same order.
1029
1030PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1031 bounces) except when queue_only is set, to avoid logging races between
1032 the different processes.
1033
145396a6
PH
1034PH/38 Panic-die if .include specifies a non-absolute path.
1035
3cd34f13
PH
1036PH/39 A tweak to the "H" retry rule from its user.
1037
11121d3d
JJ
1038JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1039 a label. They prevented compilation on older perls.
1040
1041JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1042 a warning to be raised on newish perls.
1043
1044JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1045 on queue. Changes to match documented behaviour of showing count of
1046 messages matching specified criteria.
1047
8def5aaf
PH
1048PH/40 Changed the default ident timeout from 30s to 5s.
1049
929ba01c
PH
1050PH/41 Added support for the use of login_cap features, on those BSD systems
1051 that have them, for controlling the resources used by pipe deliveries.
1052
2632889e
PH
1053PH/42 The content-scanning code uses fopen() to create files in which to put
1054 message data. Previously it was not paying any attention to the mode of
1055 the files. Exim runs with umask(0) because the rest of the code creates
1056 files with open(), and sets the required mode explicitly. Thus, these
1057 files were ending up world-writeable. This was not a big issue, because,
1058 being within the spool directory, they were not world-accessible. I have
1059 created a function called modefopen, which takes an additional mode
1060 argument. It sets umask(777), creates the file, chmods it to the required
1061 mode, then resets the umask. All the relevant calls to fopen() in the
1062 content scanning code have been changed to use this function.
1063
944a9c55
PH
1064PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1065 to 24 hours. This avoids potential overflow problems when processing G
1066 and H retry rules. I suspect nobody ever tinkers with this value.
1067
4a23603b
PH
1068PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1069
4730f942
PH
1070PH/45 When the plaintext authenticator is running as a client, the server's
1071 challenges are checked to ensure they are valid base64 strings. By
1072 default, the authentication attempt is cancelled if an invalid string is
1073 received. Setting client_ignore_invalid_base64 true ignores these errors.
1074 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1075 they are received. Thus, the responses can be made to depend on the
1076 challenges. If an invalid string is ignored, an empty string is placed in
1077 the variable.
1078
30dba1e6
PH
1079PH/46 Messages that are created by the autoreply transport now contains a
1080 References: header, in accordance with RFCs 2822 and 3834.
1081
382afc6b
PH
1082PH/47 Added authenticated_sender_force to the smtp transport.
1083
a86229cf
PH
1084PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1085
50c99ba6
PH
1086PH/49 Installed latest patch from the Sieve maintainer.
1087
d35e429d
PH
1088PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1089 was also set, the appendfile transport was unnecessarily scanning a
1090 directory of message files (e.g. for maildir delivery) to find the count
1091 of files (along with the size), even though it did not need this
1092 information. It now does the scan only if it needs to find either the
1093 size of the count of files.
1094
f90d018c
PH
1095PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1096
75def545
PH
1097PH/52 Two bugs concerned with error handling when the smtp transport is
1098 used in LMTP mode:
1099
1100 (i) Exim was not creating retry information for temporary errors given
1101 for individual recipients after the DATA command when the smtp transport
1102 was used in LMTP mode. This meant that they could be retried too
1103 frequently, and not timed out correctly.
1104
1105 (ii) Exim was setting the flag that allows error details to be returned
1106 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1107 recipients that were returned after the DATA command.
1108
1109PH/53 This is related to PH/52, but is more general: for any failing address,
1110 when detailed error information was permitted to be returned to the
1111 sender, but the error was temporary, then after the final timeout, only
1112 "retry timeout exceeded" was returned. Now it returns the full error as
1113 well as "retry timeout exceeded".
1114
c46782ef
PH
1115PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1116 do this, and (what is worse) MTAs that accept it.
1117
71fafd95
PH
1118PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1119 will now be deprecated.
1120
2c5db4fd
PH
1121PH/56 New os.c-cygwin from the Cygwin maintainer.
1122
9cf6b11a
JJ
1123JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1124 formats (previously only available in exim formats via -bpr, -bpru,
1125 and -bpra. Now also available in native and exiqgrep formats)
1126
1127JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1128 with very large, slow to parse queues
1129
1130JJ/08 exipick: added ! as generic prefix to negate any criteria format
1131
1132JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1133
898d150f
PH
1134PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1135 responses to authentication challenges, though it was showing the
1136 challenges; (ii) I've removed the CR characters from the debug output for
1137 SMTP output lines.
1138
46218253
PH
1139PH/58 Allow for the insertion of a newline as well as a space when a string
1140 is turned into more than one encoded-word during RFC 2047 encoding. The
1141 Sieve code now uses this.
1142
e97957bc
PH
1143PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1144 data_4xx, lost_connection, tls_required.
1145
81e509d7
PH
1146PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1147 message was being sent as an SMTP response.
1148
3d240ff7
PH
1149PH/61 Add -l and -k options to exicyclog.
1150
b37c4101
PH
1151PH/62 When verifying, if an address was redirected to one new address, so that
1152 verification continued, and the new address failed or deferred after
1153 having set something in $address_data, the value of $address_data was not
1154 passed back to the ACL. This was different to the case when no
1155 redirection occurred. The value is now passed back in both cases.
1156
79378e0f
PH
1157PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1158 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1159 use login_cap.h, so on its own it isn't the distinguishing feature. The
1160 new name refers directly to the setclassresources() function.
1161
e49c7bb4
PH
1162PH/65 Added configuration files for NetBSD3.
1163
d114ec46
PH
1164PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1165
f3d7df6c
PH
1166PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1167 is preferred over IPv4.
1168
715ab376
PH
1169PH/68 The bounce_return_message and bounce_return_body options were not being
1170 honoured for bounces generated during the reception of non-SMTP messages.
1171 In particular, this applied to messages rejected by the ACL. This bug has
1172 been fixed. However, if bounce_return_message is true and bounce_return_
1173 body is false, the headers that are returned for a non-SMTP message
1174 include only those that have been read before the error was detected.
1175 (In the case of an ACL rejection, they have all been read.)
1176
6b31b150
PH
1177PH/69 The HTML version of the specification is now built in a directory called
1178 spec_html instead of spec.html, because the latter looks like a path with
1179 a MIME-type, and this confuses some software.
1180
1181PH/70 Catch two compiler warnings in sieve.c.
1182
d515a917
PH
1183PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1184 function verify_get_ident() calls ip_connect() to connect a socket, but
1185 if the "connect()" function timed out, ip_connect() used to close the
1186 socket. However, verify_get_ident() also closes the socket later, and in
1187 between Exim writes to the log, which may get opened at this point. When
1188 the socket was closed in ip_connect(), the log could get the same file
1189 descriptor number as the socket. This naturally causes chaos. The fix is
1190 not to close the socket in ip_connect(); the socket should be closed by
1191 the function that creates it. There was only one place in the code where
1192 this was missing, in the iplookup router, which I don't think anybody now
1193 uses, but I've fixed it anyway.
1194
9b8fadde
PH
1195PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1196 well as to direct DNS lookups. Otherwise the handling of names in host
1197 lists is inconsistent and therefore confusing.
1198
214e2000 1199
5de37277
PH
1200Exim version 4.60
1201-----------------
1202
cc38ddbf
PH
1203PH/01 Two changes to the default runtime configuration:
1204
1205 (1) Move the checks for relay_from_hosts and authenticated clients from
1206 after to before the (commented out) DNS black list checks.
1207
1208 (2) Add control=submission to the relay_from_hosts and authenticated
1209 clients checks, on the grounds that messages accepted by these
1210 statements are most likely to be submissions.
5de37277 1211
72fdd6ae
PH
1212PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1213
1214 (1) Generate an error if the third argument for the ${prvs expansion is
1215 not a single digit.
1216
1217 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1218 string.
1219
1220 (3) Reset the variables that are obtained from the first argument of
1221 ${prvscheck and used in the second argument before leaving the code,
1222 because their memory is reclaimed, so using them afterwards may do
1223 silly things.
1224
1225 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1226 one (it's much easier than Tom thought :-).
1227
1228 (5) Because of (4), we can now allow for the use of $prvscheck_result
1229 inside the third argument.
cb9328de 1230
cb741023
PH
1231PH/03 For some reason, the default setting of PATH when running a command from
1232 a pipe transport was just "/usr/bin". I have changed it to
1233 "/bin:/usr/bin".
1234
f174f16e
PH
1235PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1236 anything to be listed in the output from -bV.
b2f5a032 1237
c25242d7
PH
1238PH/05 When a filter generated an autoreply, the entire To: header line was
1239 quoted in the delivery log line, like this:
1240
1241 => >A.N.Other <ano@some.domain> <original@ddress> ...
1242
1243 This has been changed so that it extracts the operative address. There
1244 may be more than one such address. If so, they are comma-separated, like
1245 this:
1246
1247 => >ano@some.domain,ona@other.domain <original@ddress> ...
1248
82c19f95
PH
1249PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1250 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1251 not being looked up in the rDNS to get a host name, Exim was showing the
1252 IP address twice in Received: lines, even though the IP addresses were
1253 identical. For example:
1254
1255 Received: from [1.2.3.4] (helo=[1.2.3.4])
1256
1257 However, if the real host name was known, it was omitting the HELO data
1258 if it matched the actual IP address. This has been tidied up so that it
1259 doesn't show the same IP address twice.
1260
d7ffbc12
PH
1261PH/07 When both +timestamp and +memory debugging was on, the value given by
1262 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1263 called by the debug printing, thereby overwriting the timestamp buffer.
1264 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1265
9f526266
PH
1266PH/08 When the original message was included in an autoreply transport, it
1267 always said "this is a copy of the message, including all the headers",
1268 even if body_only or headers_only was set. It now gives an appropriate
1269 message.
1270
87fcc8b9
PH
1271PH/09 Applied a patch from the Sieve maintainer which:
1272
1273 o fixes some comments
1274 o adds the (disabled) notify extension core
1275 o adds some debug output for the result of if/elsif tests
1276 o points to the current vacation draft in the documentation
1277 and documents the missing references header update
1278
1279 and most important:
1280
1281 o fixes a bug in processing the envelope test (when testing
1282 multiple envelope elements, the last element determinted the
1283 result)
1284
456682f5
PH
1285PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1286 Electronic Mail") by including:
1287
1288 Auto-submitted: auto-generated
1289
1290 in the messages that it generates (bounce messages and others, such as
1291 warnings). In the case of bounce messages for non-SMTP mesages, there was
1292 also a typo: it was using "Auto_submitted" (underscore instead of
1293 hyphen). Since every message generated by Exim is necessarily in response
1294 to another message, thes have all been changed to:
1295
1296 Auto-Submitted: auto-replied
1297
1298 in accordance with these statements in the RFC:
1299
1300 The auto-replied keyword:
1301
1302 - SHOULD be used on messages sent in direct response to another
1303 message by an automatic process,
1304
1305 - MUST NOT be used on manually-generated messages,
1306
1307 - MAY be used on Delivery Status Notifications (DSNs) and Message
1308 Disposition Notifications (MDNs),
1309
1310 - MUST NOT be used on messages generated by automatic or periodic
1311 processes, except for messages which are automatic responses to
1312 other messages.
1313
3e46c1aa
PH
1314PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1315 to the default Received: header definition.
456682f5 1316
49826d12
PH
1317PH/12 Added log selector acl_warn_skipped (default on).
1318
eba0c039
PH
1319PH/13 After a successful wildlsearch lookup, discard the values of numeric
1320 variables because (a) they are in the wrong storage pool and (b) even if
1321 they were copied, it wouldn't work properly because of the caching.
1322
a0d6ba8a
PH
1323PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1324 checking when decoding. Apparently there are clients that generate
1325 overlong encoded strings. Why am I not surprised?
1326
f0917727
PH
1327PH/15 If the first argument of "${if match_address" was not empty, but did not
1328 contain an "@" character, Exim crashed. Now it writes a panic log message
1329 and treats the condition as false.
1330
096fee00
PH
1331PH/16 In autoreply, treat an empty string for "once" the same as unset.
1332
024bd3c2
PH
1333PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1334 extension "envelope-auth". The code is finished and in agreement with
1335 other implementations, but there is no documentation so far and in fact,
1336 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1337 not changing the active code.
1338
1339 Print executed "if" and "elsif" statements when debugging is used. This
1340 helps a great deal to understand what a filter does.
1341
1342 Document more things not specified clearly in RFC3028. I had all this
1343 sorted out, when out of a sudden new issues came to my mind. Oops."
1344
df199fec
PH
1345PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1346 (Bugzilla #53).
1347
d27f1df3
PH
1348PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1349 canonical form (as documented). However, after a host name lookup from
1350 the IP address, check_host() was doing a simple string comparison with
1351 addresses acquired from the DNS when checking that the found name did
1352 have the original IP as one of its addresses. Since any found IPv6
1353 addresses are likely to be in abbreviated form, the comparison could
1354 fail. Luckily, there already exists a function for doing the comparison
1355 by converting both addresses to binary, so now that is used instead of
1356 the text comparison.
1357
96776534
PH
1358PH/20 There was another similar case to PH/19, when a complete host name was
1359 given in a host list; looking up its IP address could give an abbreviated
1360 form, whereas the current host's name might or might not be abbreviated.
1361 The same fix has been applied.
1362
5de37277 1363
9a799bc0
PH
1364Exim version 4.54
1365-----------------
1366
1367PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1368 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1369 It now does.
1370
99a4b039
PH
1371PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1372 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1373
1374PH/03 Typo: missing ".o" in src/pcre/Makefile.
1375
4b233853
PH
1376PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1377 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1378 Also, for "Auto-Submitted", treat anything other than "no" as
1379 non-personal, in accordance with RFC 3834. (Previously it treated
1380 anything starting "auto-" as non-personal.)
1381
8857ccfd
PH
1382TF/01 The control=submission/name=... option had a problem with syntax
1383 errors if the name included a slash character. The /name= option
1384 now slurps the rest of the string, so it can include any characters
1385 but it must come last in the list of options (after /sender_retain
1386 or /domain=).
1387
433a2980
PH
1388PH/05 Some modifications to the interface to the fake nameserver for the new
1389 testing suite.
1390
3e46c1aa 1391
9a799bc0 1392
e3a311ba
TK
1393Exim version 4.53
1394-----------------
1395
1396TK/01 Added the "success_on_redirect" address verification option. See
1397 NewStuff for rationale and an example.
1398
13b685f9
PH
1399PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1400
395ff96d
PH
1401PH/02 Patch to exigrep to allow it to work on syslog lines.
1402
5b68f6e4
PH
1403PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1404 fread() to skip over the body file's header line, because in Cygwin the
1405 header line is locked and is inaccessible.
1406
1ab52c69
PH
1407PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1408 co-exist for some time) to make it clear that it is the Exim ID that is
1409 referenced, not the Message-ID: header line.
1410
b07e6aa3
PH
1411PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1412 string_format() function, because snprintf() does not exist on all
1413 operating systems.
1414
254e032f
PH
1415PH/06 The use of forbid_filter_existstest now also locks out the use of the
1416 ${stat: expansion item.
1417
3af76a81
PH
1418PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1419 protocol synchronization error", to keep the pedants happy.
1420
2548ba04
PH
1421PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1422 well as for IRIX systems, when gcc is being used. See the host.c source
1423 file for comments.
1424
b6c6011d
PH
1425PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1426
cf39cf57
PH
1427PH/10 Named domain lists were not working if used in a queue_smtp_domains
1428 setting.
1429
f1513293
PH
1430PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1431 transport and to the smtp transport in LMTP mode.
1432
727549a4
PH
1433TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1434
af46795e
PH
1435PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1436 run a filter in a subprocess. This could lead to confusion in subsequent
1437 lookups in the parent process. There should also be a search_tidyup() at
1438 the end of the subprocess.
1439
d7b47fd0
PH
1440PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1441 only if the host matched helo_try_verify_hosts, which caused the
1442 verification to occur when the EHLO/HELO command was issued. The ACL just
1443 tested the remembered result. Now, if a previous verification attempt has
1444 not happened, "verify = helo" does it there and then.
1445
ee744174
JJ
1446JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1447
b582ab87
PH
1448TK/03 Fix log output including CR from clamd.
1449
41a13e0a
PH
1450PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1451 exist provoked a memory error which could cause a segfault.
1452
f625cc5a
PH
1453PH/15 Installed PCRE 6.2
1454
1455PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1456
21f7af35
PH
1457PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1458 of the problem. Specifically, suggested +O2 rather than +O1 for the
1459 HP-UX compiler.
1460
31480e42
PH
1461PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1462
2d280592
PH
1463PH/20 If a delivery was routed to a non-standard port by means of an SRV
1464 record, the port was not correctly logged when the outgoing_port log
1465 selector was set (it logged the transort's default port).
1466
7cd1141b
PH
1467PH/21 Added support for host-specific ports to manualroute, queryprogram,
1468 fallback_hosts, and "hosts" in the smtp transport.
1469
1470PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1471 host errors such as "Connection refused".
1472
750af86e
PH
1473PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1474 authentication with radiusclient 0.4.9:
1475
1476 - Error returned from rc_read_config was caught wrongly
1477 - Username/password not passed on to radius server due to wrong length.
1478
1479 The presumption is that some radiusclient API changes for 4.51/PH/17
1480 were not taken care of correctly. The code is still untested by me (my
1481 Linux distribution still has 0.3.2 of radiusclient), but it was
1482 contributed by a Radius user.
1483
1484PH/24 When doing a callout, the value of $domain wasn't set correctly when
1485 expanding the "port" option of the smtp transport.
1486
4304270b
TK
1487TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1488 while reading a MIME header. Thanks to Tom Hughes for a patch.
1489
750af86e
PH
1490PH/24 Include config.h inside local_scan.h so that configuration settings are
1491 available.
1492
64ffc24f
PH
1493PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1494 that in an ACL for RCPT (for example), you can examine exactly what was
1495 received.
1496
5dd9625b
PH
1497PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1498 commands, but it was not correctly comparing the address with the actual
1499 client host address. Thus, it would show the EHLO address in Received:
1500 header lines when this was not necessary.
1501
5591031b
PH
1502PH/27 Added the % operator to ${eval:}.
1503
ba18e66a
PH
1504PH/28 Exim tries to create and chdir to its spool directory when it starts;
1505 it should be ignoring failures (because with -C, for example, it has lost
1506 privilege). It wasn't ignoring creation failures other than "already
1507 exists".
1508
9cec981f
PH
1509PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1510 -bV or -d is used.
1511
aa2b5c79
PH
1512PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1513 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1514 too many continuations, the temporary file was not being removed, and the
1515 return code was incorrect.
aa2b5c79 1516
48a53b7f
PH
1517PH/31 Missing "BOOL" in function definition in filtertest.c.
1518
1c59d63b
PH
1519PH/32 Applied Sieve patches from the maintainer.
1520
671012da
TK
1521TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1522
1509d3a8
PH
1523PH/33 Added "verify = not_blind".
1524
1525PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1526 Local/Makefile (with some defaults set). These are used in built scripts
1527 such as exicyclog, but they have never been used in the exim_install
1528 script (though there are many overriding facilities there). I have
1529 arranged that the exim_install script now takes note of these two
1530 settings.
1531
1532PH/35 Installed configuration files for Dragonfly.
1533
2fe1a124
PH
1534PH/36 When a locally submitted message by a trusted user did not contain a
1535 From: header, and the sender address was obtained from -f or from an SMTP
1536 MAIL command, and the trusted user did not use -F to supply a sender
1537 name, $originator_name was incorrectly used when constructing a From:
1538 header. Furthermore, $originator_name was used for submission mode
1539 messages from external hosts without From: headers in a similar way,
1540 which is clearly wrong.
1541
8800895a
PH
1542PH/37 Added control=suppress_local_fixups.
1543
ccfdb010
PH
1544PH/38 When log_selector = +received_sender was set, and the addition of the
1545 sender made the log line's construction buffer exactly full, or one byte
1546 less than full, an overflow happened when the terminating "\n" was
1547 subsequently added.
1548
1130bfb0
PH
1549PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1550 when the result of a list match is failure because a DNS lookup failed.
1551
ebcb507f
PH
1552PH/40 RM_COMMAND is now used in the building process.
1553
c35e155c
PH
1554PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1555 the "build-* directories that it finds.
1556
95d1f782
PH
1557PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1558 address in a domain literal was a prefix of an interface address.
1559
fd6de02e
PH
1560PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1561 when verifying a sender address, unless rewrite_headers is false.
1562
58de37c5
PH
1563PH/44 Wrote a long comment about why errors_to addresses are verified as
1564 recipients, not senders.
1565
261cf466
TF
1566TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1567 the ratelimit ACL was added.
1568
3ee512ff
PH
1569PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1570
e08c430f
PH
1571PH/46 Added extra information about PostgreSQL errors to the error string.
1572
bef5a11f
PH
1573PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1574 avoiding the need to install special zones in a real server. This is
1575 backwards compatible; if it can't find the fake resolver, it drops back.
1576 Thus, both old and new test suites can be run.
1577
7546de58
TF
1578TF/02 Added util/ratelimit.pl
1579
e5d5a95f
TF
1580TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1581 clock is set back in time.
1582
2e88a017
TF
1583TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1584 Candler <B.Candler@pobox.com>.
1585
a5f65aa4
TF
1586TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1587 OK for addresses that are the result of redirections.
1588
e7726cbf
PH
1589PH/48 A number of further additions for the benefit of the new test suite,
1590 including a fake gethostbyname() that interfaces to the fake DNS resolver
1591 (see PH/47 above).
1592
a7fdad5b
TF
1593TF/06 The fix for widen_domains has also been applied to qualify_single and
1594 search_parents which are the other dnslookup options that can cause
1595 header rewrites.
1596
6af56900
PH
1597PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1598 type ("H").
1599
0925ede6
PH
1600PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1601
66afa403
TF
1602TF/07 Exim produced the error message "an SRV record indicated no SMTP
1603 service" if it encountered an MX record with an empty target hostname.
1604 The message is now "an MX or SRV record indicated no SMTP service".
1605
0154e85a
TF
1606TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1607 if the DNS of the sending site is misconfigured. This is quite a
1608 common situation. This change restores the behaviour of treating a
1609 helo verification defer as a failure.
1610
16f12c76
PH
1611PH/51 If self=fail was set on a router, the bounce message did not include the
1612 actual error message.
1613
bbe902f0 1614
e5a9dba6
PH
1615Exim version 4.52
1616-----------------
1617
1618TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1619
22c3b60b
PH
1620PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1621 command itself ended in error, the underlying message about the transport
1622 filter timeout was being overwritten with the pipe command error. Now the
1623 underlying error message should be appended to the second error message.
1624
06a9b4b5
PH
1625TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1626
c1ac6996
PH
1627PH/02 Reduce the amount of output that "make" produces by default. Full output
1628 can still be requested.
1629
9c7a242c
PH
1630PH/03 The warning log line about a condition test deferring for a "warn" verb
1631 was being output only once per connection, rather than after each
1632 occurrence (because it was using the same function as for successful
1633 "warn" verbs). This seems wrong, so I have changed it.
1634
87ba3f5f
PH
1635TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1636 it should not have, which might have caused a crash in the right
1637 circumstances, but probably never did.
1638
1639PH/04 Installed a modified version of Tony Finch's patch to make submission
1640 mode fix the return path as well as the Sender: header line, and to
1641 add a /name= option so that you can make the user's friendly name appear
1642 in the header line.
1643
29aba418
TF
1644TF/03 Added the control = fakedefer ACL modifier.
1645
fe0dab11
TF
1646TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1647 Mark Lowes for thorough testing.
870f6ba8 1648
11d337a4
TK
1649TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1650
1651TK/03 Merged latest SRS patch from Miles Wilton.
1652
415c8f3b
PH
1653PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1654 with the definition in sysexits.h (which is #included earlier).
1655 Fortunately, Exim does not actually use EX_OK. The code used to try to
1656 preserve the sysexits.h value, by assumimg that macro definitions were
1657 scanned for macro replacements. I have been disabused of this notion,
1658 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1659
958541e9
PH
1660PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1661 in the smtp transport. When a block could not be written in a single
1662 write() function, the timeout was being re-applied to each part-write.
1663 This seems wrong - if the receiver was accepting one byte at a time it
1664 would take for ever. The timeout is now adjusted when this happens. It
1665 doesn't have to be particularly precise.
1666
c206415f
TK
1667TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1668 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1669
2a4be8f9
PH
1670PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1671 without a domain if the check to <postmaster@domain> fails.
1672
1cba11c5
SC
1673SC/01 Eximstats: added -xls and the ability to specify output files
1674 (patch written by Frank Heydlauf).
1675
1676SC/02 Eximstats: use FileHandles for outputing results.
1677
1678SC/03 Eximstats: allow any combination of xls, txt, and html output.
1679
1680SC/04 Eximstats: fixed display of large numbers with -nvr option
1681
1682SC/05 Eximstats: fixed merging of reports with empty tables.
1683
1684SC/06 Eximstats: added the -include_original_destination flag
1685
1686SC/07 Eximstats: removed tabs and trailing whitespace.
1687
1005d00e
TK
1688TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1689
1690TK/06 MBOX spool code: Add real "From " MBOX separator line
1691 so the .eml file is really in mbox format (even though
1692 most programs do not really care). Patch from Alex Miller.
1693
1694TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1695 The latter is generated from $received_to and is only set if the
1696 message has one envelope recipient. SA can use these headers,
1697 obviously out-of-the-box. Patch from Alex Miller.
1698
9b4768fa
PH
1699PH/08 The ${def test on a variable was returning false if the variable's
1700 value was "0", contrary to what the specification has always said!
1701 The result should be true unless the variable is empty.
1702
1703PH/09 The syntax error of a character other than { following "${if
1704 def:variable_name" (after optional whitespace) was not being diagnosed.
1705 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1706 accidental colon was present, for example, could give incorrect results.
1707
0d7eb84a
PH
1708PH/10 Tidied the code in a number of places where the st_size field of a stat()
1709 result is used (not including appendfile, where other changes are about
1710 to be made).
1711
1712PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1713 This involved changing a lot of size variables from int to off_t. It
1714 should work with maildirs and everything.
1715
40727bee
TK
1716TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1717 spamd dying while we are connected to it.
1718
554d2369
TF
1719TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1720 <jgh@wizmail.org>
1721
1f922db1
PH
1722PH/12 Applied Alex Kiernan's patch for the API change for the error callback
1723 function for BDB 4.3.
1724
ef213c3b
PH
1725PH/13 Changed auto_thaw such that it does not apply to bounce messages.
1726
8ac170f3
PH
1727PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
1728 the sources for PCRE have been re-arranged and more files are now
1729 involved.
1730
b1c749bb
PH
1731PH/15 The code I had for printing potentially long long variables in PH/11
1732 above was not the best (it lost precision). The length of off_t variables
1733 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
1734 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
1735 to be "long long int" or "long int". This is needed for the internal
1736 formatting function string_vformat().
b1c749bb 1737
4aac9b49
PH
1738PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
1739 the configuration file to be ":syslog", then the script "guesses" where
1740 the logs files are, rather than using the compiled in default. In our
1741 case the guess is not the same as the compiled default, so the script
1742 suddenly stopped working when I started to use syslog. The patch checks
1743 to see if log_file_path is "". If so, it attempts to read it from exim
1744 with no configuration file to get the compiled in version, before it
1745 falls back to the previous guessing code."
1746
294520c8
TK
1747TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
1748 implementing BATV in an Exim configuration. See NewStuff for the gory
1749 details.
1750
5bd022fe
PH
1751PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
1752 Makefile that are specific to HP-UX.
1753
90e9ce59
PH
1754PH/18 If the "use_postmaster" option was set for a recipient callout together
1755 with the "random" option, the postmaster address was used as the MAIL
1756 FROM address for the random test, but not for the subsequent recipient
1757 test. It is now used for both.
1758
5ea81592
PH
1759PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
1760 patch removes a few documentation additions to RFC 3028, because the
1761 latest draft now contains them. It adds the new en;ascii-case comparator
1762 and a new error check for 8bit text in MIME parts. Comparator and
1763 require names are now matched exactly. I enabled the subaddress
1764 extension, but it is not well tested yet (read: it works for me)."
1765
c6c2dc1d
PH
1766PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
1767 rework some of the code of TK/09 above to avoid the hardwired use of
1768 "%lld" and "long long". Replaced the call to snprintf() with a call to
1769 string_vformat().
1770
fffffe4c
PH
1771PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
1772 records point to non-existent hosts", "retry timeout exceeded", and
1773 "retry time not reached for any host after a long failure period".
ca02eafb 1774
9a26b6b2
PH
1775PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
1776 experimental DomainKeys support:
1777
1778 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
1779 (2) On an error such as an illegally used "control", the wrong name for
1780 the control was given.
1781
1782 These problems did NOT occur unless DomainKeys support was compiled.
1783
4aee0225
PH
1784PH/23 Added daemon_startup_retries and daemon_startup_sleep.
1785
32d668a5
PH
1786PH/24 Added ${if match_ip condition.
1787
8187c3f3
PH
1788PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
1789 databases so that it will be absolutely obvious if a crash occurs in the
1790 DB library. This is a regular occurrence (often caused by mis-matched
1791 db.h files).
1792
ff790e47 1793PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
1794 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
1795 picked up on a user's system that detects such things. There doesn't seem
1796 to be a gcc warning option for this - only an attribute that has to be
1797 put on the function's prototype. It seems that in Fedora Core 4 they have
1798 set this on a number of new functions. No doubt there will be more in due
1799 course.
ff790e47 1800
5417f6d1
PH
1801PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
1802 specify a transport. However, if an address that was verified by such a
1803 router was the subject of a callout, Exim crashed because it tried to
1804 read the rcpt_include_affixes from the non-existent transport. Now it
1805 just assumes that the setting of that option is false. This bug was
1806 introduced by 4.51/PH/31.
1807
59cf8544
PH
1808PH/28 Changed -d+all to exclude +memory, because that information is very
1809 rarely of interest, but it makes the output a lot bigger. People tend to
1810 do -d+all out of habit.
1811
e7ad8a65
PH
1812PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
1813 code in os-type was giving problems when libc.so lives in lib64, like on
1814 x86_64 Fedora Core.
1815
ade42478
PH
1816PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
1817 aren't the modern standard, and it seems that some systems' include files
1818 don't always have them. Exim was already checking for some of the newer
1819 ones like T_AAAA, and defining it itself. I've added checks for all the
1820 record types that Exim uses.
1821
182ad5cf
PH
1822PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
1823 not automatically generating a new one, as it is supposed to. This
1824 prevented TLS from working. If the file did exist, but contained invalid
1825 data, a new version was generated, as expected. It was only the case of a
1826 non-existent file that was broken.
1827
b0d9fc80
TK
1828TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
1829 with a change in libdomainkeys > 0.64.
1830
1831TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
1832 from DNS. If the selector record carries the flag, it now has
1833 precedence over the domain-wide flag.
1834
1835TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
1836
47c7a64a
PH
1837PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
1838 the use of a port name that isn't defined in /etc/services) occurred, the
1839 message was deferred as in a normal delivery, and thus remained on the
1840 spool, instead of being failed because of the mua_wrapper setting. This
1841 is now fixed, and I tidied up some of the mua_wrapper messages at the
1842 same time.
1843
a388bce4
SC
1844SC/08 Eximstats: whilst parsing the mainlog(s), store information about
1845 the messages in a hash of arrays rather than using individual hashes.
1846 This is a bit cleaner and results in dramatic memory savings, albeit
1847 at a slight CPU cost.
1848
1849SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
1850 as requested by Marc Sherman.
1851
1852SC/10 Eximstats: added histograms for user specified patterns as requested
1853 by Marc Sherman.
1854
0793e4ed
SC
1855SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
1856
c58b88df
PH
1857PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
1858 fopen() in the content-scanning modules that did not already have it.
1859
e7ad8a65 1860
7982096b
PH
1861Exim version 4.51
1862-----------------
1863
1a46a8c5
PH
1864TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
1865 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
1866
2f079f46 1867TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
1868
1869TK/03 Fix ACL "regex" condition not being available in MIME ACL.
1870
1871PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
1872 to test Sieve filters that use "vacation".
1873
1874PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
1875 that changes the way the GnuTLS parameters are stored in the cache file.
1876 The new format can be generated externally. For backward compatibility,
1877 if the data in the cache doesn't make sense, Exim assumes it has read an
1878 old-format file, and it generates new data and writes a new file. This
1879 means that you can't go back to an older release without removing the
1880 file.
1881
1882PH/03 A redirect router that has both "unseen" and "one_time" set does not
1883 work if there are any delivery delays because "one_time" forces the
1884 parent to be marked "delivered", so its unseen clone is never tried
1885 again. For this reason, Exim now forbids the simultaneous setting of
1886 these two options.
1887
1888PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
1889 redirected to themselves ("homonym" addresses). Read the long ChangeLog
1890 entry if you want to know the details. The fix, however, neglected to
1891 consider the case when local delivery batching is involved. The test for
1892 "previously delivered" was not happening when checking to see if an
1893 address could be batched with a previous (undelivered) one; under
1894 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 1895 address.
1a46a8c5
PH
1896
1897PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
1898 in its include files, and this causes problems building Exim.
1899
1900PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
1901 header_syntax) but Exim was just ignoring anything given after a slash.
1902 In particular, this caused confusion with an attempt to use "verify =
1903 reverse_host_lookup/defer_ok". An error is now given when options are
1904 supplied for verify items that do not have them. (Maybe reverse_host_
1905 lookup should have a defer_ok option, but that's a different point.)
1906
1907PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
1908 defined by RFC 821) to 2048, because there were problems with some AUTH
1909 commands, and RFC 1869 says the size should be increased for extended
1910 SMTP commands that take arguments.
1911
1912PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
1913 Finch).
1914
1915PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
1916 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 1917
49c2d5ea
PH
1918PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
1919 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
1920 whatever). Otherwise the password may appear in the log. Following change
1921 PH/42 below, there is no longer a chance of it appearing in a bounce
1922 message.
49c2d5ea 1923
bf759a8b
PH
1924PH/11 Installed exipick version 20050225.0 from John Jetmore.
1925
83364d30
PH
1926PH/12 If the last host in a fallback_hosts list was multihomed, only the first
1927 of its addresses was ever tried. (Bugzilla bug #2.)
1928
7999bbd7
PH
1929PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
1930 the result incorrectly in the debug output. (It correctly added a newline
1931 to what was transported.)
1932
7dbf77c9
PH
1933TF/01 Added $received_time.
1934
74e0617f
PH
1935PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
1936 commented out examples of how to interface to a virus scanner and to
1937 SpamAssassin. Also added commented examples of av_scanner and
1938 spamd_address settings.
1939
2f079f46
PH
1940PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
1941 and controls are allowed in which ACLs. There were a couple of minor
1942 errors. Some of the entries in the conditions table (which is a table of
1943 where they are NOT allowed) were getting very unwieldy; rewrote them as a
1944 negation of where the condition IS allowed.
1945
8c841523
PH
1946PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
1947
7766a4f0
PH
1948PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
1949 header file does not have a version number, so I've had to invent a new
1950 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
1951 API. The code is untested by me (my Linux distribution still has 0.3.2 of
1952 radiusclient), but it was contributed by a Radius user.
1953
8b417f2c
PH
1954PH/18 Installed Lars Mainka's patch for the support of CRL collections in
1955 files or directories, for OpenSSL.
1956
901f42cb
PH
1957PH/19 When an Exim process that is running as root has to create an Exim log
1958 file, it does so in a subprocess that runs as exim:exim so as to get the
1959 ownership right at creation (otherwise, other Exim processes might see
1960 the file with the wrong ownership). There was no test for failure of this
1961 fork() call, which would lead to the process getting stuck as it waited
1962 for a non-existent subprocess. Forks do occasionally fail when resources
1963 run out. I reviewed all the other calls to fork(); they all seem to check
1964 for failure.
1965
f9b9210e
PH
1966PH/20 When checking for unexpected SMTP input at connect time (before writing
1967 the banner), Exim was not dealing correctly with a non-positive return
1968 from the read() function. If the client had disconnected by this time,
1969 the result was a log entry for a synchronization error with an empty
1970 string after "input=" when read() returned zero. If read() returned -1
1971 (an event I could not check), uninitialized data bytes were printed.
1972 There were reports of junk text (parts of files, etc) appearing after
1973 "input=".
1974
54cdb463
PH
1975PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
1976
cf00dad6
PH
1977PH/22 Added support for macro redefinition, and (re)definition in between
1978 driver and ACL definitions.
1979
acb1b346
PH
1980PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
1981 forgetting to use the resulting value; it was using the unexpanded value.
1982
c5ddb310
PH
1983PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
1984 hadn't been configured. The fix is from Juergen Kreileder, who
1985 understands it better than I do:
1986
1987 "Here's what I see happening with three configured cyrus_sasl
1988 authenticators configured (plain, login, cram-md5):
1989
1990 On startup auth_cyrus_sasl_init() gets called for each of these.
1991 This means three calls to sasl_listmech() without a specified mech_list.
1992 => SASL tests which mechs of all available mechs actually work
1993 => three warnings about OTP not working
1994 => the returned list contains: plain, login, cram-md5, digest-md5, ...
1995
1996 With the patch, sasl_listmech() also gets called three times. But now
1997 SASL's mech_list option is set to the server_mech specified in the the
1998 authenticator. Or in other words, the answer from sasl_listmech()
1999 gets limited to just the mech you're testing for (which is different
2000 for each call.)
2001 => the return list contains just 'plain' or 'login', 'cram-md5' or
2002 nothing depending on the value of ob->server_mech.
2003
2004 I've just tested the patch: Authentication still works fine,
2005 unavailable mechs specified in the exim configuration are still
2006 caught, and the auth.log warnings about OTP are gone."
2007
31619da6
PH
2008PH/25 When debugging is enabled, the contents of the command line are added
2009 to the debugging output, even when log_selector=+arguments is not
2010 specified.
2011
bebaf0fc
PH
2012PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2013 answer is "GNU", and only if the return is "GNU/something" is the answer
2014 "Linux".
2015
475fe28a
PH
2016PH/27 $acl_verify_message is now set immediately after the failure of a
2017 verification in an ACL, and so is available in subsequent modifiers. In
2018 particular, the message can be preserved by coding like this:
2019
2020 warn !verify = sender
2021 set acl_m0 = $acl_verify_message
2022
2023 Previously, $acl_verify_message was set only while expanding "message"
2024 and "log_message" when a very denied access.
2025
7e8bec7a
PH
2026PH/28 Modified OS/os.c-Linux with
2027
2028 -#ifndef OS_LOAD_AVERAGE
2029 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2030
2031 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2032 nomenclature these days.)
2033
e4a89c47
PH
2034PH/29 Installed patch from the Sieve maintainer that adds the options
2035 sieve_useraddress and sieve_subaddress to the redirect router.
2036
5ca2a9a1
PH
2037PH/30 In these circumstances:
2038 . Two addresses routed to the same list of hosts;
2039 . First host does not offer TLS;
2040 . First host accepts first address;
2041 . First host gives temporary error to second address;
2042 . Second host offers TLS and a TLS session is established;
2043 . Second host accepts second address.
2044 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2045 and peerdn, if requested) that were in fact used only for the second
2046 address.
7e8bec7a 2047
c688b954
PH
2048PH/31 When doing a callout as part of verifying an address, Exim was not paying
2049 attention to any local part prefix or suffix that was matched by the
2050 router that accepted the address. It now behaves in the same way as it
2051 does for delivery: the affixes are removed from the local part unless
2052 rcpt_include_affixes is set on the transport.
2053
fed77020
PH
2054PH/32 Add the sender address, as F=<...>, to the log line when logging a
2055 timeout during the DATA phase of an incoming message.
2056
7fe1560f
PH
2057PH/33 Sieve envelope tests were broken for match types other than :is. I have
2058 applied a patch sanctioned by the Sieve maintainer.
c688b954 2059
ebb6e6d5
PH
2060PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2061 the uid or gid is negative. A case of a negative gid caused this to be
2062 noticed. The fix allows for either to be negative.
2063
9c4e8f60
PH
2064PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2065 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2066 overlooked.
2067
2068PH/36 The change PH/12 above was broken. Fixed it.
2069
d7174846
PH
2070PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2071 the grounds that routing the same address twice would always produce the
2072 same answer. This might have been true once, but it is certainly no
2073 longer true now. Routing a child address may depend on the previous
2074 routing that produced that child. Some complicated redirection strategies
2075 went wrong when messages had multiple recipients, and made Exim's
2076 behaviour dependent on the order in which the addresses were given.
2077
2078 I have moved the duplicate checking until after the routing is complete.
2079 Exim scans the addresses that are assigned to local and remote
2080 transports, and removes any duplicates. This means that more work will be
2081 done, as duplicates will always all be routed, but duplicates are
2082 presumably rare, so I don't expect this is of any significance.
2083
2084 For deliveries to pipes, files, and autoreplies, the duplicate checking
2085 still happens during the routing process, since they are not going to be
2086 routed further.
2087
cfe75fc3
PH
2088PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2089 It corrects a timeout issue with spamd. This is Ian's comment: "The
2090 background is that sometimes spamd either never reads data from a
2091 connection it has accepted, or it never writes response data. The exiscan
2092 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2093 blindly assumes that writes won't block so it may never time out."
2094
be22d70e
PH
2095PH/39 Allow G after quota size as well as K and M.
2096
0612b098
PH
2097PH/40 The value set for $authenticated_id in an authenticator may not contain
2098 binary zeroes or newlines because the value is written to log lines and
2099 to spool files. There was no check on this. Now the value is run through
2100 the string_printing() function so that such characters are converted to
2101 printable escape sequences.
2102
2e0c1448
PH
2103PH/41 $message_linecount is a new variable that contains the total number of
2104 lines in the message. Compare $body_linecount, which is the count for the
2105 body only.
2106
447d236c
PH
2107PH/42 Exim no longer gives details of delivery errors for specific addresses in
2108 bounce and delay warning messages, except in certain special cases, which
2109 are as follows:
2110
2111 (a) An SMTP error message from a remote host;
2112 (b) A message specified in a :fail: redirection;
2113 (c) A message specified in a "fail" command in a system filter;
2114 (d) A message specified in a FAIL return from the queryprogram router;
2115 (e) A message specified by the cannot_route_message router option.
2116
2117 In these cases only, Exim does include the error details in bounce and
2118 warning messages. There are also a few cases where bland messages such
2119 as "unrouteable address" or "local delivery error" are given.
2120
d20976dc
PH
2121PH/43 $value is now also set for the "else" part of a ${run expansion.
2122
f656d135
PH
2123PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2124 being worked on, but at least Exim now implements the latest version to
2125 play with."
2126
2e2a30b4
PH
2127PH/45 In a pipe transport, although a timeout while waiting for the pipe
2128 process to complete was treated as a delivery failure, a timeout while
2129 writing the message to the pipe was logged, but erroneously treated as a
2130 successful delivery. Such timeouts include transport filter timeouts. For
2131 consistency with the overall process timeout, these timeouts are now
2132 treated as errors, giving rise to delivery failures by default. However,
2133 there is now a new Boolean option for the pipe transport called
2134 timeout_defer, which, if set TRUE, converts the failures into defers for
2135 both kinds of timeout. A transport filter timeout is now identified in
2136 the log output.
2137
9176e9f0
PH
2138PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2139 systems where "make" and "gmake" are different, calling "gmake" at top
2140 level broke things. I've arranged for the value of $(MAKE) to be passed
2141 from the Makefile to this script so that it can call the same version of
2142 "make".
2143
7982096b 2144
bbe902f0
PH
2145A note about Exim versions 4.44 and 4.50
2146----------------------------------------
2147
2148Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2149changes of various kinds. As a consequence, a big documentation update was
2150needed. This delayed the release for rather longer than seemed good, especially
2151in the light of a couple of (minor) security issues. Therefore, the changes
2152that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2153release. So 4.44 and 4.50 are in effect two different branches that both start
2154from 4.43.
2155
2156I have left the 4.50 change log unchanged; it contains all the changes since
21574.43. The change log for 4.44 is below; many of its items are identical to
2158those for 4.50. This seems to be the most sensible way to preserve the
2159historical information.
2160
2161
f7b63901 2162Exim version 4.50
495ae4b0
PH
2163-----------------
2164
5fe762f6
PH
2165 1. Minor wording change to the doc/README.SIEVE file.
2166
139059f6 2167 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2168 computation of the current number of files was incorrect.
495ae4b0 2169
7086e875
PH
2170 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2171 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2172 place.
2173
35af9f61
PH
2174 4. Give more explanation in the error message when the command for a transport
2175 filter fails to execute.
2176
b668c215
PH
2177 5. There are several places where Exim runs a non-Exim command in a
2178 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2179 was being done only for the command run by the queryprogram router. It is
2180 now done for all such subprocesses. The other cases are: ${run, transport
2181 filters, and the commands run by the lmtp and pipe transports.
2182
a494b1e1
PH
2183 6. Added CONFIGURE_GROUP build-time option.
2184
2185 7. Some older OS have a limit of 256 on the maximum number of file
2186 descriptors. Exim was using setrlimit() to set 1000 as a large value
2187 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2188 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2189
c5fcb476
PH
2190 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2191 was an oversight, and furthermore, ever since the addition of extra
2192 controls (e.g. 4.43/32), the checks on when to allow different forms of
2193 "control" were broken. There should now be diagnostics for all cases when a
2194 control that does not make sense is encountered.
2195
69358f02
PH
2196 9. Added the /retain_sender option to "control=submission".
2197
5be20824
PH
219810. $recipients is now available in the predata ACL (oversight).
2199
eb2c0248
PH
220011. Tidy the search cache before the fork to do a delivery from a message
2201 received from the command line. Otherwise the child will trigger a lookup
2202 failure and thereby defer the delivery if it tries to use (for example) a
2203 cached ldap connection that the parent has called unbind on.
2204
2a3eea10
PH
220512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2206 of $address_data from the recipient verification was clobbered by the
2207 sender verification.
2208
220913. The value of address_data from a sender verification is now available in
2210 $sender_address_data in subsequent conditions in the ACL statement.
2211
23c7ff99
PH
221214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2213
4deaf07d
PH
221415. Added a new option "connect=<time>" to callout options, to set a different
2215 connection timeout.
2216
926e1192
PH
221716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2218 was its contents. (It was OK if the option was not defined at all.)
2219
650edc6f
PH
222017. A "Completed" log line is now written for messages that are removed from
2221 the spool by the -Mrm option.
2222
2c7db3f5
PH
222318. New variables $sender_verify_failure and $recipient_verify_failure contain
2224 information about exactly what failed.
2225
3d235903
PH
222619. Added -dd to debug only the daemon process.
2227
7c7ad977
PH
222820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2229 handles timeouts, both on the server side and network timeouts. Renamed the
2230 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2231
981756db
PH
223221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2233 It is now set to "smtps".
2234
d4eb88df
PH
223522. $host_address is now set to the target address during the checking of
2236 ignore_target_hosts.
2237
223823. When checking ignore_target_hosts for an ipliteral router, no host name was
2239 being passed; this would have caused $sender_host_name to have been used if
2240 matching the list had actually called for a host name (not very likely,
2241 since this list is usually IP addresses). A host name is now passed as
2242 "[x.x.x.x]".
2243
7d468ab8
PH
224424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2245 code that specifies a non-restarting handler (typically sigaction() in
2246 modern systems) in an attempt to fix a rare and obscure crash bug.
2247
224825. Narrowed the window for a race in the daemon that could cause it to ignore
2249 SIGCHLD signals. This is not a major problem, because they are used only to
2250 wake it up if nothing else does.
2251
62c0818f
PH
225226. A malformed maildirsize file could cause Exim to calculate negative values
2253 for the mailbox size or file count. Odd effects could occur as a result.
2254 The maildirsize information is now recalculated if the size or filecount
2255 end up negative.
2256
26034054
PH
225727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2258 support for a long time. Removed HAVE_SYS_VFS_H.
2259
af66f652
PH
226028. Installed the latest version of exipick from John Jetmore.
2261
90af77f4
PH
226229. In an address list, if the pattern was not a regular expression, an empty
2263 subject address (from a bounce message) matched only if the pattern was an
2264 empty string. Non-empty patterns were not even tested. This was the wrong
2265 because it is perfectly reasonable to use an empty address as part of a
2266 database query. An empty address is now tested by patterns that are
2267 lookups. However, all the other forms of pattern expect the subject to
2268 contain a local part and a domain, and therefore, for them, an empty
2269 address still always fails if the pattern is not itself empty.
2270
d8ef3577
PH
227130. Exim went into a mad DNS loop when attempting to do a callout where the
2272 host was specified on an smtp transport, and looking it up yielded more
2273 than one IP address.
2274
5cb8cbc6
PH
227531. Re-factored the code for checking spool and log partition space into a
2276 function that finds that data and another that does the check. The former
2277 is then used to implement four new variables: $spool_space, $log_space,
2278 $spool_inodes, and $log_inodes.
2279
14702f5b
PH
228032. The RFC2047 encoding function was originally intended for short strings
2281 such as real names; it was not keeping to the 75-character limit for
2282 encoded words that the RFC imposes. It now respects the limit, and
2283 generates multiple encoded words if necessary. To be on the safe side, I
2284 have increased the buffer size for the ${rfc2047: expansion operator from
2285 1024 to 2048 bytes.
2286
063b1e99
PH
228733. It is now permitted to omit both strings after an "if" condition; if the
2288 condition is true, the result is "true". As before, when the second string
2289 is omitted, a false condition yields an empty string. This makes it less
2290 cumbersome to write custom ACL and router conditions.
2291
652e1b65
PH
229234. Failure to deliver a bounce message always caused it to be frozen, even if
2293 there was an errors_to setting on the router. The errors_to setting is now
2294 respected.
2295
6f0c9a4f
PH
229635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2297 canonical form (fully expanded) before being placed in
2298 $sender_host_address.
2299
33397d19
PH
230036. The table in the code that translates DNS record types into text (T_A to
2301 "A" for instance) was missing entries for NS and CNAME. It is just possible
2302 that this could have caused confusion if both these types were looked up
2303 for the same domain, because the text type is used as part of Exim's
2304 per-process caching. But the chance of anyone hitting this buglet seems
2305 very small.
2306
7bb56e1f
PH
230737. The dnsdb lookup has been extended in a number of ways.
2308
2309 (1) There is a new type, "zns", which walks up the domain tree until it
2310 finds some nameserver records. It should be used with care.
2311
ea3bc19b
PH
2312 (2) There is a new type, "mxh", which is like "mx" except that it returns
2313 just the host names, not the priorities.
2314
2315 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2316 looked up. The behaviour when one of the lookups defers can be
2317 controlled by a keyword.
7bb56e1f 2318
ea3bc19b 2319 (4) It is now possible to specify the separator character for use when
7bb56e1f 2320 multiple records are returned.
33397d19 2321
0bcb2a0e
PH
232238. The dnslists ACL condition has been extended: it is now possible to supply
2323 a list of IP addresses and/or domains to be looked up in a particular DNS
2324 domain.
2325
2ac0e484
PH
232639. Added log_selector=+queue_time_overall.
2327
4e1fde53
PH
232840. When running the queue in the test harness, wait just a tad after forking a
2329 delivery process, to get repeatability of debugging output.
2330
de365ded
PH
233141. Include certificate and key file names in error message when GnuTLS fails
2332 to set them up, because the GnuTLS error message doesn't include the name
2333 of the failing file when there is a problem reading it.
2334
f05da2e8
PH
233542. Allow both -bf and -bF in the same test run.
2336
d6453af2
PH
233743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2338
f7b63901
PH
233944. The "Exiscan patch" is now merged into the mainline Exim source.
2340
234145. Sometimes the final signoff response after QUIT could fail to get
2342 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2343 < 0 before doing a fflush(). This bug looks as though it goes back to the
2344 introduction of TLS in release 3.20, but "sometimes" must have been rare
2345 because the tests only now provoked it.
2346
a444213a
PH
234746. Reset the locale to "C" after calling embedded Perl, in case it was changed
2348 (this can affect the format of dates).
2349
0ec020ea
PH
235047. exim_tidydb, when checking for the continued existence of a message for
2351 which it has found a message-specific retry record, was not finding
2352 messages that were in split spool directories. Consequently, it was
2353 deleting retry records that should have stayed in existence.
2354
b1206957
PH
235548. Steve fixed some bugs in eximstats.
2356
235749. The SPA authentication driver was not abandoning authentication and moving
2358 on to the next authenticator when an expansion was forced to fail,
2359 contradicting the general specification for all authenticators. Instead it
2360 was generating a temporary error. It now behaves as specified.
2361
26dd5a95
PH
236250. The default ordering of permitted cipher suites for GnuTLS was pessimal
2363 (the order specifies the preference for clients). The order is now AES256,
2364 AES128, 3DES, ARCFOUR128.
2365
343b2385
PH
236651. Small patch to Sieve code - explicitly set From: when generating an
2367 autoreply.
2368
1c5466b9
PH
236952. Exim crashed if a remote delivery caused a very long error message to be
2370 recorded - for instance if somebody sent an entire SpamAssassin report back
2371 as a large number of 550 error lines. This bug was coincidentally fixed by
2372 increasing the size of one of Exim's internal buffers (big_buffer) that
2373 happened as part of the Exiscan merge. However, to be on the safe side, I
2374 have made the code more robust (and fixed the comments that describe what
2375 is going on).
2376
55ee9ee3
PH
237753. Now that there can be additional text after "Completed" in log lines (if
2378 the queue_time_overall log selector is set), a one-byte patch to exigrep
2379 was needed to allow it to recognize "Completed" as not the last thing in
2380 the line.
2381
d38f8232
PH
238254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2383 patch that reportedly fixes this has been added. I am not expert enough to
2384 create a test for it. This is what the patch creator wrote:
2385
2386 "I found a little strange behaviour of ldap code when working with
2387 Windows 2003 AD Domain, where users was placed in more than one
2388 Organization Units. When I tried to give exim partial DN, the exit code
2389 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2390 But simultaneously result of request was absolutely normal ldap result,
2391 so I produce this patch..."
2392
3295e65b
PH
2393 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2394 REFERENCE, so I have modified the code to exclude the patch when that macro
2395 is not defined.
2396
7102e136
PH
239755. Some experimental protocols are using DNS PTR records for new purposes. The
2398 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2399 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2400 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2401 CAN-2005-0021
7102e136 2402
3ca0ba97
PH
240356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2404
c2bcbe20
PH
240557. Double the size of the debug message buffer (to 2048) so that more of very
2406 long debug lines gets shown.
2407
18ce445d
PH
240858. The exicyclog utility now does better if the number of log files to keep
2409 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2410
1f5b4c3d
PH
241159. Two changes related to the smtp_active_hostname option:
2412
2413 (1) $smtp_active_hostname is now available as a variable.
2414 (2) The default for smtp_banner uses $smtp_active_hostname instead
2415 of $primary_hostname.
2416
b975ba52
PH
241760. The host_aton() function is supposed to be passed a string that is known
2418 to be a valid IP address. However, in the case of IPv6 addresses, it was
2419 not checking this. This is a hostage to fortune. Exim now panics and dies
2420 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2421 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2422 components; fortuitously, this particular loophole had already been fixed
2423 by change 4.50/55 above.
2424
2425 If there are any other similar loopholes, the new check in host_aton()
2426 itself should stop them being exploited. The report I received stated that
2427 data on the command line could provoke the exploit when Exim was running as
2428 exim, but did not say which command line option was involved. All I could
2429 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2430 running as the user.
ea3a6f44 2431 CAN-2005-0021
85b87bc2
PH
2432
243361. There was a buffer overflow vulnerability in the SPA authentication code
2434 (which came originally from the Samba project). I have added a test to the
2435 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2436 CAN-2005-0022
b975ba52 2437
17ffcae7
PH
243862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2439 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2440
d95f9fdb
PH
244163. The daemon start-up calls getloadavg() while still root for those OS that
2442 need the first call to be done as root, but it missed one case: when
2443 deliver_queue_load_max is set with deliver_drop_privilege. This is
2444 necessary for the benefit of the queue runner, because there is no re-exec
2445 when deliver_drop_privilege is set.
2446
86b8287f
PH
244764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2448 This has been fixed.
2449
60dc5e56
PH
245065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2451 was in use, was not putting the data itself into the right store pool;
2452 consequently, it could be overwritten for a subsequent message in the same
2453 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2454 the caching.)
2455
533244af
PH
245666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2457
a5a28604
PH
245867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2459 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2460 the function were treating the return as a boolean value, which happened to
2461 work because 0=false and not-0=true, but is not correct code.
2462
7e634d24
PH
246368. The host_aton() function was not handling scoped IPv6 addresses (those
2464 with, for example, "%eth0" on the end) correctly.
2465
3e11c26b
PH
246669. Fixed some compiler warnings in acl.c for the bitmaps specified with
2467 negated items (that is, ~something) in unsigned ints. Some compilers
2468 apparently mutter when there is no cast.
2469
6729cf78
PH
247070. If an address verification called from an ACL failed, and did not produce a
2471 user-specific message (i.e. there was only a "system" message), nothing was
2472 put in $acl_verify_message. In this situation, it now puts the system
2473 message there.
2474
00f00ca5
PH
247571. Change 4.23/11 added synchronization checking at the start of an SMTP
2476 session; change 4.31/43 added the unwanted input to the log line - except
2477 that it did not do this in the start of session case. It now does.
2478
c9bdd01c
PH
247972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2480 This is wrong and can cause the other end to generate a synchronization
2481 error if it is another Exim or anything else that does the synchronization
2482 check. A QUIT command is no longer sent after a timeout.
2483
d43194df
PH
248473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2485 during host lookups.
2486
fe5b5d0b
PH
248774. The defer_ok option of callout verification was not working if it was used
2488 when verifying addresses in header lines, that is, for this case:
2489
2490 verify = header_sender/callout=defer_ok
2491
76a2d7ba
PH
249275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2493 those file descriptors could be used for SMTP connections. If anything
2494 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2495 could be sent to the SMTP client, causing chaos. The daemon now opens
2496 stdin, stdout, and stderr to /dev/null when it puts itself into the
2497 background.
2498
249976. Arrange for output from Perl's "warn" command to be written to Exim's main
2500 log by default. The user can override this with suitable Perl magic.
2501
04f7d5b9
PH
250277. The use of log_message on a "discard" ACL verb, which is supposed to add to
2503 the log message when discard triggers, was not working for the DATA ACL or
2504 for the non-SMTP ACL.
2505
bc60667e
PH
250678. Error message wording change in sieve.c.
2507
bb6e88ff
PH
250879. If smtp_accept_max_per_host was set, the number of connections could be
2509 restricted to fewer than expected, because the daemon was trying to set up
2510 a new connection before checking whether the processes handling previous
2511 connections had finished. The check for completed processes is now done
2512 earlier. On busy systems, this bug wouldn't be noticed because something
2513 else would have woken the daemon, and it would have reaped the completed
2514 process earlier.
2515
1e70f85b
PH
251680. If a message was submitted locally by a user whose login name contained one
2517 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2518 It caused a spool format error. I have fixed the spool reading code. A
2519 related problem was that the "from" clause in the Received: line became
2520 illegal because of the space(s). It is now covered by ${quote_local_part.
2521
252281. Included the latest eximstats from Steve (adds average sizes to HTML Top
2523 tables).
2524
4e01f9d6
PH
252582. Updated OS/Makefile-AIX as per message from Mike Meredith.
2526
1ee1cef2
PH
252783. Patch from Sieve maintainer to fix unterminated string problem in
2528 "vacation" handling.
2529
6e2b4ccc
PH
253084. Some minor changes to the Linux configuration files to help with other
2531 OS variants using glibc.
2532
8e669ac1
PH
253385. One more patch for Sieve to update vacation handling to latest spec.
2534
495ae4b0 2535
bbe902f0
PH
2536----------------------------------------------------
2537See the note above about the 4.44 and 4.50 releases.
2538----------------------------------------------------
2539
2540
2541Exim version 4.44
2542-----------------
2543
2544 1. Change 4.43/35 introduced a bug that caused file counts to be
2545 incorrectly computed when quota_filecount was set in an appendfile
2546 transport
2547
2548 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2549 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2550 place.
2551
2552 3. Give more explanation in the error message when the command for a transport
2553 filter fails to execute.
2554
2555 4. There are several places where Exim runs a non-Exim command in a
2556 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2557 was being done only for the command run by the queryprogram router. It is
2558 now done for all such subprocesses. The other cases are: ${run, transport
2559 filters, and the commands run by the lmtp and pipe transports.
2560
2561 5. Some older OS have a limit of 256 on the maximum number of file
2562 descriptors. Exim was using setrlimit() to set 1000 as a large value
2563 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2564 systems. I've change it so that if it can't get 1000, it tries for 256.
2565
2566 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2567 was an oversight, and furthermore, ever since the addition of extra
2568 controls (e.g. 4.43/32), the checks on when to allow different forms of
2569 "control" were broken. There should now be diagnostics for all cases when a
2570 control that does not make sense is encountered.
2571
2572 7. $recipients is now available in the predata ACL (oversight).
2573
2574 8. Tidy the search cache before the fork to do a delivery from a message
2575 received from the command line. Otherwise the child will trigger a lookup
2576 failure and thereby defer the delivery if it tries to use (for example) a
2577 cached ldap connection that the parent has called unbind on.
2578
2579 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2580 of $address_data from the recipient verification was clobbered by the
2581 sender verification.
2582
258310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2584 was its contents. (It was OK if the option was not defined at all.)
2585
258611. A "Completed" log line is now written for messages that are removed from
2587 the spool by the -Mrm option.
2588
258912. $host_address is now set to the target address during the checking of
2590 ignore_target_hosts.
2591
259213. When checking ignore_target_hosts for an ipliteral router, no host name was
2593 being passed; this would have caused $sender_host_name to have been used if
2594 matching the list had actually called for a host name (not very likely,
2595 since this list is usually IP addresses). A host name is now passed as
2596 "[x.x.x.x]".
2597
259814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2599 code that specifies a non-restarting handler (typically sigaction() in
2600 modern systems) in an attempt to fix a rare and obscure crash bug.
2601
260215. Narrowed the window for a race in the daemon that could cause it to ignore
2603 SIGCHLD signals. This is not a major problem, because they are used only to
2604 wake it up if nothing else does.
2605
260616. A malformed maildirsize file could cause Exim to calculate negative values
2607 for the mailbox size or file count. Odd effects could occur as a result.
2608 The maildirsize information is now recalculated if the size or filecount
2609 end up negative.
2610
261117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2612 support for a long time. Removed HAVE_SYS_VFS_H.
2613
ea3a6f44 261418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2615
261619. Allow an empty sender to be matched against a lookup in an address list.
2617 Previously the only cases considered were a regular expression, or an
2618 empty pattern.
2619
262020. Exim went into a mad DNS lookup loop when doing a callout where the
2621 host was specified on the transport, if the DNS lookup yielded more than
2622 one IP address.
2623
ea3a6f44
NM
262421. The RFC2047 encoding function was originally intended for short strings
2625 such as real names; it was not keeping to the 75-character limit for
2626 encoded words that the RFC imposes. It now respects the limit, and
2627 generates multiple encoded words if necessary. To be on the safe side, I
2628 have increased the buffer size for the ${rfc2047: expansion operator from
2629 1024 to 2048 bytes.
bbe902f0 2630
ea3a6f44
NM
263122. Failure to deliver a bounce message always caused it to be frozen, even if
2632 there was an errors_to setting on the router. The errors_to setting is now
2633 respected.
bbe902f0
PH
2634
263523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2636 canonical form (fully expanded) before being placed in
2637 $sender_host_address.
2638
263924. Updated eximstats to version 1.33
2640
ea3a6f44
NM
264125. Include certificate and key file names in error message when GnuTLS fails
2642 to set them up, because the GnuTLS error message doesn't include the name
2643 of the failing file when there is a problem reading it.
bbe902f0
PH
2644
264526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2646 As per change 25.
bbe902f0 2647
ea3a6f44
NM
264827. Reset the locale to "C" after calling embedded Perl, in case it was changed
2649 (this can affect the format of dates).
bbe902f0 2650
ea3a6f44
NM
265128. exim_tidydb, when checking for the continued existence of a message for
2652 which it has found a message-specific retry record, was not finding
2653 messages that were in split spool directories. Consequently, it was
2654 deleting retry records that should have stayed in existence.
bbe902f0
PH
2655
265629. eximstats updated to version 1.35
2657 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2658 1.35 - bugfix such that pie charts by volume are generated correctly
2659
ea3a6f44
NM
266030. The SPA authentication driver was not abandoning authentication and moving
2661 on to the next authenticator when an expansion was forced to fail,
2662 contradicting the general specification for all authenticators. Instead it
2663 was generating a temporary error. It now behaves as specified.
bbe902f0 2664
ea3a6f44
NM
266531. The default ordering of permitted cipher suites for GnuTLS was pessimal
2666 (the order specifies the preference for clients). The order is now AES256,
2667 AES128, 3DES, ARCFOUR128.
bbe902f0 2668
ea3a6f44
NM
266931. Small patch to Sieve code - explicitly set From: when generating an
2670 autoreply.
bbe902f0 2671
ea3a6f44
NM
267232. Exim crashed if a remote delivery caused a very long error message to be
2673 recorded - for instance if somebody sent an entire SpamAssassin report back
2674 as a large number of 550 error lines. This bug was coincidentally fixed by
2675 increasing the size of one of Exim's internal buffers (big_buffer) that
2676 happened as part of the Exiscan merge. However, to be on the safe side, I
2677 have made the code more robust (and fixed the comments that describe what
2678 is going on).
bbe902f0 2679
ea3a6f44
NM
268033. Some experimental protocols are using DNS PTR records for new purposes. The
2681 keys for these records are domain names, not reversed IP addresses. The
2682 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2683 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2684 CAN-2005-0021
2685
ea3a6f44
NM
268634. The host_aton() function is supposed to be passed a string that is known
2687 to be a valid IP address. However, in the case of IPv6 addresses, it was
2688 not checking this. This is a hostage to fortune. Exim now panics and dies
2689 if the condition is not met. A case was found where this could be provoked
2690 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2691 components; fortuitously, this particular loophole had already been fixed
2692 by change 4.50/55 or 4.44/33 above.
2693
2694 If there are any other similar loopholes, the new check in host_aton()
2695 itself should stop them being exploited. The report I received stated that
2696 data on the command line could provoke the exploit when Exim was running as
2697 exim, but did not say which command line option was involved. All I could
2698 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2699 running as the user.
bbe902f0
PH
2700 CAN-2005-0021
2701
ea3a6f44
NM
270235. There was a buffer overflow vulnerability in the SPA authentication code
2703 (which came originally from the Samba project). I have added a test to the
2704 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2705 CAN-2005-0022
2706
ea3a6f44
NM
270736. The daemon start-up calls getloadavg() while still root for those OS that
2708 need the first call to be done as root, but it missed one case: when
2709 deliver_queue_load_max is set with deliver_drop_privilege. This is
2710 necessary for the benefit of the queue runner, because there is no re-exec
2711 when deliver_drop_privilege is set.
bbe902f0 2712
ea3a6f44
NM
271337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2714 was in use, was not putting the data itself into the right store pool;
2715 consequently, it could be overwritten for a subsequent message in the same
2716 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2717 the caching.)
bbe902f0 2718
ea3a6f44
NM
271938. Sometimes the final signoff response after QUIT could fail to get
2720 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2721 < 0 before doing a fflush(). This bug looks as though it goes back to the
2722 introduction of TLS in release 3.20, but "sometimes" must have been rare
2723 because the tests only now provoked it.
bbe902f0
PH
2724
2725
495ae4b0
PH
2726Exim version 4.43
2727-----------------
2728
2729 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
2730 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
2731 Now it returns an integer. A number of calls were still expecting a T/F
2732 return. Fortuitously, in all cases, the tests worked in OK situations,
2733 which is the norm. However, things would have gone wrong on any write
2734 failures on the smtp file descriptor. This function is used when sending
2735 messages over SMTP and also when doing verify callouts.
2736
2737 2. When Exim is called to do synchronous delivery of a locally submitted
2738 message (the -odf or -odi options), it no longer closes stderr before doing
2739 the delivery.
2740
2741 3. Implemented the mua_wrapper option.
2742
2743 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
2744
2745 5. Implemented the functions header_remove(), header_testname(),
2746 header_add_at_position(), and receive_remove_recipient(), and exported them
2747 to local_scan().
2748
2749 6. If an ACL "warn" statement specified the addition of headers, Exim already
2750 inserted X-ACL-Warn: at the start if there was no header name. However, it
2751 was not making this test for the second and subsequent header lines if
2752 there were newlines in the string. This meant that an invalid header could
2753 be inserted if Exim was badly configured.
2754
2755 7. Allow an ACL "warn" statement to add header lines at the start or after all
2756 the Received: headers, as well as at the end.
2757
2758 8. Added the rcpt_4xx retry error code.
2759
2760 9. Added postmaster_mailfrom=xxx to callout verification option.
2761
276210. Added mailfrom=xxxx to the callout verification option, for verify=
2763 header_sender only.
2764
276511. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
2766 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
2767
276812. Inserted some casts to stop certain compilers warning when using pointer
2769 differences as field lengths or precisions in printf-type calls (mostly
2770 affecting debugging statements).
2771
277213. Added optional readline() support for -be (dynamically loaded).
2773
277414. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
2775 same clock tick as a message's arrival, so that its received time was the
2776 same as the "first fail" time on the retry record, and that message
2777 remained on the queue past the ultimate address timeout, every queue runner
2778 would try a delivery (because it was past the ultimate address timeout) but
2779 after another failure, the ultimate address timeout, which should have then
2780 bounced the address, did not kick in. This was a "< instead of <=" error;
2781 in most cases the first failure would have been in the next clock tick
2782 after the received time, and all would be well.
2783
278415. The special items beginning with @ in domain lists (e.g. @mx_any) were not
2785 being recognized when the domain list was tested by the match_domain
2786 condition in an expansion string.
2787
278816. Added the ${str2b64: operator.
2789
279017. Exim was always calling setrlimit() to set a large limit for the number of
2791 processes, without checking whether the existing limit was already
2792 adequate. (It did check for the limit on file descriptors.) Furthermore,
2793 errors from getrlimit() and setrlimit() were being ignored. Now they are
2794 logged to the main and panic logs, but Exim does carry on, to try to do its
2795 job under whatever limits there are.
2796
279718. Imported PCRE 5.0.
2798
279919. Trivial typo in log message " temporarily refused connection" (the leading
2800 space).
2801
280220. If the log selector return_path_on_delivery was set and an address was
2803 redirected to /dev/null, the delivery process crashed because it assumed
2804 that a return path would always be set for a "successful" delivery. In this
2805 case, the whole delivery is bypassed as an optimization, and therefore no
2806 return path is set.
2807
280821. Internal re-arrangement: the function for sending a challenge and reading
2809 a response while authentication was assuming a zero-terminated challenge
2810 string. It's now changed to take a pointer and a length, to allow for
2811 binary data in such strings.
2812
281322. Added the cyrus_sasl authenticator (code supplied by MBM).
2814
281523. Exim was not respecting finduser_retries when seeking the login of the
2816 uid under which it was called; it was always trying 10 times. (The default
2817 setting of finduser_retries is zero.) Also, it was sleeping after the final
2818 failure, which is pointless.
2819
282024. Implemented tls_on_connect_ports.
2821
282225. Implemented acl_smtp_predata.
2823
282426. If the domain in control=submission is set empty, Exim assumes that the
2825 authenticated id is a complete email address when it generates From: or
2826 Sender: header lines.
2827
282827. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
2829 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
2830 chown and chgrp in /bin and hostname in /usr/bin.
2831
283228. Exim was keeping the "process log" file open after each use, just as it
2833 does for the main log. This opens the possibility of it remaining open for
2834 long periods when the USR1 signal hits a daemon. Occasional processlog
2835 errors were reported, that could have been caused by this. Anyway, it seems
2836 much more sensible not to leave this file open at all, so that is what now
2837 happens.
2838
283929. The long-running daemon process does not normally write to the log once it
2840 has entered its main loop, and it closes the log before doing so. This is
2841 so that log files can straightforwardly be renamed and moved. However,
2842 there are a couple of unusual error situations where the daemon does write
2843 log entries, and I had neglected to close the log afterwards.
2844
284530. The text of an SMTP error response that was received during a remote
2846 delivery was being truncated at 512 bytes. This is too short for some of
2847 the long messages that one sometimes sees. I've increased the limit to
2848 1024.
2849
285031. It is now possible to make retry rules that apply only when a message has a
2851 specific sender, in particular, an empty sender.
2852
285332. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
2854 it possible to be selective about when SMTP synchronization is enforced.
2855
285633. Added "control = caseful_local_part" and "control = "caselower_local_part".
2857
285832. Implemented hosts_connection_nolog.
2859
286033. Added an ACL for QUIT.
2861
286234. Setting "delay_warning=" to disable warnings was not working; it gave a
2863 syntax error.
2864
286535. Added mailbox_size and mailbox_filecount to appendfile.
2866
286736. Added control = no_multiline_responses to ACLs.
2868
286937. There was a bug in the logic of the code that waits for the clock to tick
2870 in the case where the clock went backwards by a substantial amount such
2871 that the microsecond fraction of "now" was more than the microsecond
2872 fraction of "then" (but the whole seconds number was less).
2873
287438. Added support for the libradius Radius client library this is found on
2875 FreeBSD (previously only the radiusclient library was supported).
2876
2877
2878Exim version 4.42
2879-----------------
2880
2881 1. When certain lookups returned multiple values in the form name=value, the
2882 quoting of the values was not always being done properly. Specifically:
2883 (a) If the value started with a double quote, but contained no whitespace,
2884 it was not quoted.
2885 (b) If the value contained whitespace other than a space character (i.e.
2886 tabs or newlines or carriage returns) it was not quoted.
2887 This fix has been applied to the mysql and pgsql lookups by writing a
2888 separate quoting function and calling it from the lookup code. The fix
2889 should probably also be applied to nisplus, ibase and oracle lookups, but
2890 since I cannot test any of those, I have not disturbed their existing code.
2891
2892 2. A hit in the callout cache for a specific address caused a log line with no
2893 reason for rejecting RCPT. Now it says "Previous (cached) callout
2894 verification failure".
2895
2896 3. There was an off-by-one bug in the queryprogram router. An over-long
2897 return line was truncated at 256 instead of 255 characters, thereby
2898 overflowing its buffer with the terminating zero. As well as fixing this, I
2899 have increased the buffer size to 1024 (and made a note to document this).
2900
2901 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
2902 when Exim is waiting for an SMTP response from a remote server, Exim
2903 restarts its select() call on the socket, thereby resetting its timeout.
2904 This is not a problem when such interrupts are rare. Somebody set up a cron
2905 job to run exiwhat every 2 minutes, which is less than the normal select()
2906 timeout (5 or 10 minutes). This meant that the select() timeout never
2907 kicked in because it was always reset. I have fixed this by comparing the
2908 time when an interrupt arrives with the time at the start of the first call
2909 to select(). If more time than the timeout has elapsed, the interrupt is
2910 treated as a timeout.
2911
2912 5. Some internal re-factoring in preparation for the addition of Sieve
2913 extensions (by MH). In particular, the "personal" test is moved to a
2914 separate function, and given an option for scanning Cc: and Bcc: (which is
2915 not set for Exim filters).
2916
2917 6. When Exim created an email address using the login of the caller as the
2918 local part (e.g. when creating a From: or Sender: header line), it was not
2919 quoting the local part when it contained special characters such as @.
2920
2921 7. Installed new OpenBSD configuration files.
2922
2923 8. Reworded some messages for syntax errors in "and" and "or" conditions to
2924 try to make them clearer.
2925
2926 9. Callout options, other than the timeout value, were being ignored when
2927 verifying sender addresses in header lines. For example, when using
2928
2929 verify = header_sender/callout=no_cache
2930
2931 the cache was (incorrectly) being used.
2932
293310. Added a missing instance of ${EXE} to the exim_install script; this affects
2934 only the Cygwin environment.
2935
293611. When return_path_on_delivery was set as a log selector, if different remote
2937 addresses in the same message used different return paths and parallel
2938 remote delivery occurred, the wrong values would sometimes be logged.
2939 (Whenever a remote delivery process finished, the return path value from
2940 the most recently started remote delivery process was logged.)
2941
294212. RFC 3848 specifies standard names for the "with" phrase in Received: header
2943 lines when AUTH and/or TLS are in use. This is the "received protocol"
2944 field. Exim used to use "asmtp" for authenticated SMTP, without any
2945 indication (in the protocol name) for TLS use. Now it follows the RFC and
2946 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
2947 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
2948 names appear in log lines as well as in Received: header lines.
2949
295013. Installed MH's patches for Sieve to add the "copy" and "vacation"
2951 extensions, and comparison tests, and to fix some bugs.
2952
295314. Changes to the "personal" filter test:
2954
2955 (1) The test was buggy in that it was just doing the equivalent of
2956 "contains" tests on header lines. For example, if a user's address was
2957 anne@some.where, the "personal" test would incorrectly be true for
2958
2959 To: susanne@some.where
2960
2961 This test is now done by extracting each address from the header in turn,
2962 and checking the entire address. Other tests that are part of "personal"
2963 are now done using regular expressions (for example, to check local parts
2964 of addresses in From: header lines).
2965
2966 (2) The list of non-personal local parts in From: addresses has been
2967 extended to include "listserv", "majordomo", "*-request", and "owner-*",
2968 taken from the Sieve specification recommendations.
2969
2970 (3) If the message contains any header line starting with "List-" it is
2971 treated as non-personal.
2972
2973 (4) The test for "circular" in the Subject: header line has been removed
2974 because it now seems ill-conceived.
2975
297615. Minor typos in src/EDITME comments corrected.
2977
297816. Installed latest exipick from John Jetmore.
2979
298017. If headers_add on a router specified a text string that was too long for
2981 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
2982 of string_sprintf() is now avoided.
2983
298418. $message_body_size was not set (it was always zero) when running the DATA
2985 ACL and the local_scan() function.
2986
298719. For the "mail" command in an Exim filter, no default was being set for
2988 the once_repeat time, causing a random time value to be used if "once" was
2989 specified. (If the value happened to be <= 0, no repeat happened.) The
2990 default is now 0s, meaning "never repeat". The "vacation" command was OK
2991 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
2992 (I found it when inspecting the code).
2993
299420. There is now an overall timeout for performing a callout verification. It
2995 defaults to 4 times the callout timeout, which applies to individual SMTP
2996 commands during the callout. The overall timeout applies when there is more
2997 than one host that can be tried. The timeout is checked before trying the
2998 next host. This prevents very long delays if there are a large number of
2999 hosts and all are timing out (e.g. when the network connections are timing
3000 out). The value of the overall timeout can be changed by specifying an
3001 additional sub-option for "callout", called "maxwait". For example:
3002
3003 verify = sender/callout=5s,maxwait=20s
3004
300521. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3006 to the end before writing, but this should make it even safer).
3007
300822. Exim was forgetting that it had advertised PIPELINING for the second and
3009 subsequent messages on an SMTP connection. It was also not resetting its
3010 memory on STARTTLS and an internal HELO.
3011
301223. When Exim logs an SMTP synchronization error within a session, it now
3013 records whether PIPELINING has been advertised or not.
3014
301524. Added 3 instances of "(long int)" casts to time_t variables that were being
3016 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3017 rather than long int.
3018
301925. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3020
302126. Added the never_mail option to autoreply.
3022
3023
3024Exim version 4.41
3025-----------------
3026
3027 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3028 crash if the getsockname() call failed; this can happen if a connection is
3029 closed very soon after it is established. The problem was simply in the
3030 order in which certain operations were done, causing Exim to try to write
3031 to the SMTP stream before it had set up the file descriptor. The bug has
3032 been fixed by making things happen in the correct order.
3033
3034
3035Exim version 4.40
3036-----------------
3037
3038 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3039 before the connection was closed, thus losing the rejection response.
3040
3041 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3042 some early Solaris releases, but causes trouble in current releases where
3043 socklen_t is defined.
3044
3045 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3046 always exist.
3047
3048 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3049 configured.
3050
3051 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3052 that releasing the top of it at the end releases what was used for sub-
3053 expansions (unless the block got too big). However, discard this block if
3054 the first thing is a variable or header, so that we can use its block when
3055 it is dynamic (useful for very large $message_headers, for example).
3056
3057 6. Lookups now cache *every* query, not just the most recent. A new, separate
3058 store pool is used for this. It can be recovered when all lookup caches are
3059 flushed. Lookups now release memory at the end of their result strings.
3060 This has involved some general refactoring of the lookup sources.
3061
3062 7. Some code has been added to the store_xxx() functions to reduce the amount
3063 of flapping under certain conditions.
3064
3065 8. log_incoming_interface used to affect only the <= reception log lines. Now
3066 it causes the local interface and port to be added to several more SMTP log
3067 lines, for example "SMTP connection from", and rejection lines.
3068
3069 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3070
307110. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3072
307311. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3074 could be overwritten at the end of the current message (or the start of a
3075 new message if it was set in a HELO ACL). The value is now preserved for
3076 the duration of the SMTP connection.
3077
307812. If a transport had a headers_rewrite setting, and a matching header line
3079 contained an unqualified address, that address was qualified, even if it
3080 did not match any rewriting rules. The underlying bug was that the values
3081 of the flags that permit the existence of unqualified sender and recipient
3082 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3083 non-local messages, and by -bnq for local messages) were not being
3084 preserved with the message after it was received.
3085
308613. When Exim was logging an SMTP synchronization error, it could sometimes log
3087 "next input=" as part of the text comprising the host identity instead of
3088 the correct text. The code was using the same buffer for two different
3089 strings. However, depending on which order the printing function evaluated
3090 its arguments, the bug did not always show up. Under Linux, for example, my
3091 test suite worked just fine.
3092
309314. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3094 doesn't work with some older versions of Perl. It has been changed to "my",
3095 which in any case is probably the better facility to use.
3096
309715. A really picky compiler found some instances of statements for creating
3098 error messages that either had too many or two few arguments for the format
3099 string.
3100
310116. The size of the buffer for calls to the DNS resolver has been increased
3102 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3103 for addresses that have a lot of PTR records. This alleviates a problem; it
3104 does not fully solve it.
3105
310617. A dnsdb lookup for PTR records that receives more data than will fit in the
3107 buffer now truncates the list and logs the incident, which is the same
3108 action as happens when Exim is looking up a host name and its aliases.
3109 Previously in this situation something unpredictable would happen;
3110 sometimes it was "internal error: store_reset failed".
3111
311218. If a server dropped the connection unexpectedly when an Exim client was
3113 using GnuTLS and trying to read a response, the client delivery process
3114 crashed while trying to generate an error log message.
3115
311619. If a "warn" verb in an ACL added multiple headers to a message in a single
3117 string, for example:
3118
3119 warn message = H1: something\nH2: something
3120
3121 the text was added as a single header line from Exim's point of view
3122 though it ended up OK in the delivered message. However, searching for the
3123 second and subsequent header lines using $h_h2: did not work. This has been
3124 fixed. Similarly, if a system filter added multiple headers in this way,
3125 the routers could not see them.
3126
312720. Expanded the error message when iplsearch is called with an invalid key to
3128 suggest using net-iplsearch in a host list.
3129
313021. When running tests using -bh, any delays imposed by "delay" modifiers in
3131 ACLs are no longer actually imposed (and a message to that effect is
3132 output).
3133
313422. If a "gecos" field in a passwd entry contained escaped characters, in
3135 particular, if it contained a \" sequence, Exim got it wrong when building
3136 a From: or a Sender: header from that name. A second bug also caused
3137 incorrect handling when an unquoted " was present following a character
3138 that needed quoting.
3139
314023. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3141 was not being matched caselessly.
3142
314324. Arranged for all hyphens in the exim.8 source to be escaped with
3144 backslashes.
3145
314625. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3147 properly. Recipient callout cache records were still being keyed to include
3148 the sender, even when use_sender was set false. This led to far more
3149 callouts that were necessary. The sender is no longer included in the key
3150 when use_sender is false.
3151
315226. Added "control = submission" modifier to ACLs.
3153
315427. Added the ${base62d: operator to decode base 62 numbers.
3155
315628. dnsdb lookups can now access SRV records.
3157
315829. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3159 the configuration file.
3160
316130. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3162 (-v) mode. This makes the output for a verbose queue run more intelligible.
3163
316431. Added a use_postmaster feature to recipient callouts.
3165
316632. Added the $body_zerocount variable, containing the number of binary zero
3167 bytes in the message body.
3168
316933. The time of last modification of the "new" subdirectory is now used as the
3170 "mailbox time last read" when there is a quota error for a maildir
3171 delivery.
3172
317334. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3174
317535. Added +ignore_unknown as a special item in host lists.
3176
317736. Code for decoding IPv6 addresses in host lists is now included, even if
3178 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3179 address was recognized as an IP address, but was then not correctly decoded
3180 into binary, causing unexpected and incorrect effects when compared with
3181 another IP address.
3182
3183
3184Exim version 4.34
3185-----------------
3186
3187 1. Very minor rewording of debugging text in manualroute to say "list of
3188 hosts" instead of "hostlist".
3189
3190 2. If verify=header_syntax was set, and a header line with an unqualified
3191 address (no domain) and a large number of spaces between the end of the
3192 name and the colon was received, the reception process suffered a buffer
3193 overflow, and (when I tested it) crashed. This was caused by some obsolete
3194 code that should have been removed. The fix is to remove it!
3195
3196 3. When running in the test harness, delay a bit after writing a bounce
3197 message to get a bit more predictability in the log output.
3198
3199 4. Added a call to search_tidyup() just before forking a reception process. In
3200 theory, someone could use a lookup in the expansion of smtp_accept_max_
3201 per_host which, without the tidyup, could leave open a database connection.
3202
3203 5. Added the variables $recipient_data and $sender_data which get set from a
3204 lookup success in an ACL "recipients" or "senders" condition, or a router
3205 "senders" option, similar to $domain_data and $local_part_data.
3206
3207 6. Moved the writing of debug_print from before to after the "senders" test
3208 for routers.
3209
3210 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3211 problems for message scanning, either using a data ACL, or using
3212 local_scan() because the Received: header was not generated till after they
3213 were called (in order to set the time as the time of reception completion).
3214 I have revised the way this works. The header is now generated after the
3215 body is received, but before the ACL or local_scan() are called. After they
3216 are run, the timestamp in the header is updated.
3217
3218
3219Exim version 4.33
3220-----------------
3221
3222 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3223 before starting a queue runner without re-exec. This happened only when
3224 deliver_drop_privilege was set or when the Exim user was set to root. The
3225 effect of the bug was that timeouts during subsequent deliveries caused
3226 crashes instead of being properly handled. The handler is now left at its
3227 default (and expected) setting.
3228
3229 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3230 message, again when deliver_drop_privilege is set or Exim is run as root.
3231 The bug described in (1) was not present in this case, but the tidying up
3232 of the other signals was missing. I have made the two cases consistent.
3233
3234 3. The ignore_target_hosts setting on a manualroute router was being ignored
3235 for hosts that were looked up using the /MX notation.
3236
3237 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary
3238 in domain lists.
3239
3240 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that
3241 operated on the sender address. After changing the $sender_address to <>
3242 for the sender address verify, Exim was re-instated it as the original
3243 (before rewriting) address, but remembering that it had rewritten it, so it
3244 wasn't rewriting it again. This bug also had the effect of breaking the
3245 sender address verification caching when the sender address was rewritten.
3246
3247 6. The ignore_target_hosts option was being ignored by the ipliteral router.
3248 This has been changed so that if the ip literal address matches
3249 ignore_target_hosts, the router declines.
3250
3251 7. Added expansion conditions match_domain, match_address, and match_local_
3252 part (NOT match_host).
3253
3254 8. The placeholder for the Received: header didn't have a length field set.
3255
3256 9. Added code to Exim itself and to exim_lock to test for a specific race
3257 condition that could lead to file corruption when using MBX delivery. The
3258 issue is with the lockfile that is created in /tmp. If this file is removed
3259 after a process has opened it but before that process has acquired a lock,
3260 there is the potential for a second process to recreate the file and also
3261 acquire a lock. This could lead to two Exim processes writing to the file
3262 at the same time. The added code performs the same test as UW imapd; it
3263 checks after acquiring the lock that its file descriptor still refers to
3264 the same named file.
3265
326610. The buffer for building added header lines was of fixed size, 8192 bytes.
3267 It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted
3268 when Exim is built.
3269
327011. Added the smtp_active_hostname option. If used, this will typically be made
3271 to depend on the incoming interface address. Because $interface_address is
3272 not set up until the daemon has forked a reception process, error responses
3273 that can happen earlier (such as "too many connections") no longer contain
3274 a host name.
3275
327612. If an expansion in a condition on a "warn" statement fails because a lookup
3277 defers, the "warn" statement is abandoned, and the next ACL statement is
3278 processed. Previously this caused the whole ACL to be aborted.
3279
328013. Added the iplsearch lookup type.
3281
328214. Added ident_timeout as a log selector.
3283
328415. Added tls_certificate_verified as a log selector.
3285
328616. Added a global option tls_require_ciphers (compare the smtp transport
3287 option of the same name). This controls incoming TLS connections.
3288
328917. I finally figured out how to make tls_require_ciphers do a similar thing
3290 in GNUtls to what it does in OpenSSL, that is, set up an appropriate list
3291 before starting the TLS session.
3292
329318. Tabs are now shown as \t in -bP output.
3294
329519. If the log selector return_path_on_delivery was set, Exim crashed when
3296 bouncing a message because it had too many Received: header lines.
3297
329820. If two routers both had headers_remove settings, and the first one included
3299 a superfluous trailing colon, the final name in the first list and the
3300 first name in the second list were incorrectly joined into one item (with a
3301 colon in the middle).
3302
3303
3304Exim version 4.32
3305-----------------
3306
3307 1. Added -C and -D options to the exinext utility, mainly to make it easier
3308 to include in the automated testing, but these could be helpful when
3309 multiple configurations are in use.
3310
3311 2. The exinext utility was not formatting the output nicely when there was
3312 an alternate port involved in the retry record key, nor when there was a
3313 message id as well (for retries that were specific to a specific message
3314 and a specific host). It was also confused by IPv6 addresses, because of
3315 the additional colons they contain. I have fixed the IPv4 problem, and
3316 patched it up to do a reasonable job for IPv6.
3317
3318 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during
3319 delivery, the log line now contains "pipelined" if PIPELINING was used.
3320
3321 4. An SMTP transport process used to panic and die if the bind() call to set
3322 an explicit outgoing interface failed. This has been changed; it is now
3323 treated in the same way as a connect() failure.
3324
3325 5. A reference to $sender_host_name in the part of a conditional expansion
3326 that was being skipped was still causing a DNS lookup. This no longer
3327 occurs.
3328
3329 6. The def: expansion condition was not recognizing references to header lines
3330 that used bh_ and bheader_.
3331
3332 7. Added the _cache feature to named lists.
3333
3334 8. The code for checking quota_filecount in the appendfile transport was
3335 allowing one more file than it should have been.
3336
3337 9. For compatibility with Sendmail, the command line option
3338
3339 -prval:sval
3340
3341 is equivalent to
3342
3343 -oMr rval -oMs sval
3344
3345 and sets the incoming protocol and host name (for trusted callers). The
3346 host name and its colon can be omitted when only the protocol is to be set.
3347 Note the Exim already has two private options, -pd and -ps, that refer to
3348 embedded Perl. It is therefore impossible to set a protocol value of "d" or
3349 "s", but I don't think that's a major issue.
3350
335110. A number of refactoring changes to the code, none of which should affect
3352 Exim's behaviour:
3353
3354 (a) The number of logging options was getting close to filling up the
3355 32-bit word that was used as a bit map. I have split them into two classes:
3356 those that are passed in the argument to log_write(), and those that are
3357 only ever tested independently outside of that function. These are now in
3358 separate 32-bit words, so there is plenty of room for expansion again.
3359 There is no change in the user interface or the logging behaviour.
3360
3361 (b) When building, for example, log lines, the code previously used a
3362 macro that called string_cat() twice, in order to add two strings. This is
3363 not really sufficiently general. Furthermore, there was one instance where
3364 it was actually wrong because one of the argument was used twice, and in
3365 one call a function was used. (As it happened, calling the function twice
3366 did not affect the overall behaviour.) The macro has been replaced by a
3367 function that can join an arbitrary number of extra strings onto a growing
3368 string.
3369
3370 (c) The code for expansion conditions now uses a table and a binary chop
3371 instead of a serial search (which was left over from when there were very
3372 few conditions). Also, it now recognizes conditions like "pam" even when
3373 the relevant support is not compiled in: a suitably worded error message is
3374 given if an attempt is made to use such a condition.
3375
337611. Added ${time_interval:xxxxx}.
3377
337812. A bug was causing one of the ddress fields not to be passed back correctly
3379 from remote delivery subprocesses. The field in question was not being
3380 subsequently used, so this caused to problems in practice.
3381
338213. Added new log selectors queue_time and deliver_time.
3383
338414. Might have fixed a bug in maildirsizefile handling that threw up
3385 "unexpected character" debug warnings, and recalculated the data
3386 unnecessarily. In any case, I expanded the warning message to give more
3387 information.
3388
338915. Added the message "Restricted characters in address" to the statements in
3390 the default ACL that block characters like @ and % in local parts.
3391
339216. Change 71 for release 4.31 proved to be much less benign that I imagined.
3393 Three changes have been made:
3394
3395 (a) There was a serious bug; a negative response to MAIL caused the whole
3396 recipient domain to be cached as invalid, thereby blocking all messages
3397 to all local parts at the same domain, from all senders. This bug has
3398 been fixed. The domain is no longer cached after a negative response to
3399 MAIL if the sender used is not empty.
3400
3401 (b) The default behaviour of using MAIL FROM:<> for recipient callouts has
3402 been restored.
3403
3404 (c) A new callout option, "use_sender" has been added for people who want
3405 the modified behaviour.
3406
3407
3408Exim version 4.31
3409-----------------
3410
3411 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of
3412 Larry Rosenman.
3413
3414 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and
3415 indeed breaks things for older releases.
3416
3417 3. Added additional logging to the case where there is a problem reading data
3418 from a filter that is running in a subprocess using a pipe, in order to
3419 try to track down a specific problem.
3420
3421 4. Testing facility fudge: when running in the test harness and attempting
3422 to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes
3423 getting "No route to host". Convert this to a timeout.
3424
3425 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler
3426 warning.
3427
3428 6. Some OS don't have socklen_t but use size_t instead. This affects the
3429 fifth argument of getsockopt() amongst other things. This is now
3430 configurable by a macro called SOCKLEN_T which defaults to socklen_t, but
3431 can be set for individual OS. I have set it for SunOS5, OSF1, and
3432 Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but
3433 some earlier ones do not.
3434
3435 7. Change 4.30/15 was not doing the test caselessly.
3436
3437 8. The standard form for an IPv6 address literal was being rejected by address
3438 parsing in, for example, MAIL and RCPT commands. An example of this kind of
3439 address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts
3440 this, as well as the form without the "IPv6" on the front (but only when
3441 address literals are enabled, of course).
3442
3443 9. Added some casts to avoid compiler warnings in OS/os.c-Linux.
3444
344510. Exim crashed if a message with an empty sender address specified by -f
3446 encountered a router with an errors_to setting. This could be provoked only
3447 by a command such as
3448
3449 exim -f "" ...
3450
3451 where an empty string was supplied; "<>" did not hit this bug.
3452
345311. Installed PCRE release 4.5.
3454
345512. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name
3456 remained set. It is now erased.
3457
345813. exiqgrep wasn't working on MacOS X because it didn't correctly compute
3459 times from message ids (which are base 36 rather than the normal 62).
3460
346114. "Expected" SMTP protocol errors that can arise when PIPELINING is in use
3462 were being counted as actual protocol errors, and logged if the log
3463 selector +smtp_protocol_error was set. One cannot be perfect in this test,
3464 but now, if PIPELINING has been advertised, RCPT following a rejected MAIL,
3465 and DATA following a set of rejected RCPTs do not count as protocol errors.
3466 In other words, Exim assumes they were pipelined, though this may not
3467 actually be the case. Of course, in all cases the client gets an
3468 appropriate error code.
3469
347015. If a lookup fails in an ACL condition, a message about the failure may
3471 be available; it is used if testing the ACL cannot continue, because most
3472 such messages specify what the cause of the deferral is. However, some
3473 messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug
3474 that caused an old message to be retained and used if a later statement
3475 caused a defer, replacing the real cause of the deferral.
3476
347716. If an IP address had so many PTR records that the DNS lookup buffer
3478 was not large enough to hold them, Exim could crash while trying to process
3479 the truncated data. It now detects and logs this case.
3480
348117. Further to 4.21/58, another change has been made: if (and only if) the
3482 first line of a message (the first header line) ends with CRLF, a bare LF
3483 in a subsequent header line has a space inserted after it, so as not to
3484 terminate the header.
3485
348618. Refactoring: tidied an ugly bit of code in appendfile that copied data
3487 unnecessarily, used atoi() instead of strtol(), and didn't check the
3488 termination when getting file sizes from file names by regex.
3489
349019. Completely re-implemented the support for maildirsize files, in the light
3491 of a number of problems with the previous contributed implementation
3492 (4.30/29). In particular:
3493
3494 . If the quota is zero, the maildirsize file is maintained, but no quota is
3495 imposed.
3496
3497 . If the maildir directory does not exist, it is created before any attempt
3498 to write a maildirsize file.
3499
3500 . The quota value in the file is just a cache; if the quota is changed in
3501 the transport, the new value overrides.
3502
3503 . A regular expression is available for excluding directories from the
3504 count.
3505
350620. The autoreply transport checks the characters in options that define the
3507 message's headers; it allows continued headers, but it was checking with
3508 isspace() after an embedded newline instead of explicitly looking for a
3509 space or a tab.
3510
351121. If all the "regular" hosts to which an address was routed had passed their
3512 expiry times, and had not reached their retry times, the address was
3513 bounced, even if fallback hosts were defined. Now Exim should go on to try
3514 the fallback hosts.
3515
351622. Increased buffer sizes in the callout code from 1024 to 4096 to match the
3517 equivalent code in the SMTP transport. Some hosts send humungous responses
3518 to HELO/EHLO, more than 1024 it seems.
3519
352023. Refactoring: code in filter.c used (void *) for "any old type" but this
3521 gives compiler warnings in some environments. I've now done it "properly",
3522 using a union.
3523
352424. The replacement for inet_ntoa() that is used with gcc on IRIX systems
3525 (because of problems with the built-in one) was declared to return uschar *
3526 instead of char *, causing compiler failure.
3527
352825. Fixed a file descriptor leak when processing alias/forward files.
3529
353026. Fixed a minor format string issue in dbfn.c.
3531
353227. Typo in exim.c: ("dmbnz" for "dbmnz").
3533
353428. If a filter file refered to $h_xxx or $message_headers, and the headers
3535 contained RFC 2047 "words", Exim's memory could, under certain conditions,
3536 become corrupted.
3537
353829. When a sender address is verified, it is cached, to save repeating the test
3539 when there is more than one recipient in a message. However, when the
3540 verification involves a callout, it is possible for different callout
3541 options to be set for different recipients. It is too complicated to keep
3542 track of this in the cache, so now Exim always runs a verification when a
3543 callout is required, relying on the callout cache for the optimization.
3544 The overhead is duplication of the address routing, but this should not be
3545 too great.
3546
354730. Fixed a bug in callout caching. If a RCPT command caused the sender address
3548 to be verified with callout=postmaster, and the main callout worked but the
3549 postmaster check failed, the verification correctly failed. However, if a
3550 subsequent RCPT command asked for sender verification *without* the
3551 postmaster check, incorrect caching caused this verification also to fail,
3552 incorrectly.
3553
355431. Exim caches DNS lookup failures so as to avoid multiple timeouts; however,
3555 it was not caching the DNS options (qualify_single, search_parents) that
3556 were used when the lookup failed. A subsequent lookup with different
3557 options therefore always gave the same answer, though there were cases
3558 where it should not have. (Example: a "domains = !$mx_any" option on a
3559 dnslookup router: the "domains" option is always processed without any
3560 widening, but the router might have qualify_single set.) Now Exim uses the
3561 cached value only when the same options are set.
3562
356332. Added John Jetmore's "exipick" utility to the distribution.
3564
356533. GnuTLS: When an attempt to start a TLS session fails for any reason other
3566 than a timeout (e.g. a certificate is required, and is not provided), an
3567 Exim server now closes the connection immediately. Previously it waited for
3568 the client to close - but if the client is SSL, it seems that they each
3569 wait for each other, leading to a delay before one of them times out.
3570
357134: GnuTLS: Updated the code to use the new GnuTLS 1.0.0 API. I have not