minimal updates for exim 4

[exim-website.git] / changelogs / ChangeLog-2.10.html

Version 2.10
------------

1. The log message for a skipped syntax error in a filter file needed tidying.

2. After a "foranyaddress" condition succeeds in a filter file, the value of
$thisaddress is available in the commands. It holds whatever what the last
value tested.

3. Another adjustment to the FreeBSD makefile to make it work in ports and
non-ports environments.

4. scripts/Configure-Makefile was testing for PERL_COMMAND in the local
configuration without anchoring the check to the start of a line.

5. Give the error "no local part" instead of "missing colon in route" for
addresses like <@abcd>.

6. Nested ${lookup} and ${if} items in expanded strings were not working
correctly if "fail" was present in one of the internal items.

7. A macro expansion at the start of a continuation line of a string was
getting ignored.

8. Escapes such as \n are now handled conventionally in string expansions.

9. Added numeric comparisons to string expansions.

10. Changed the space checking to use the f_bavail field returned by the
stat(v)fs function instead of f_bfree, thus testing non-superuser space only.
Also, for those OS which have it, changed from f_ffree to f_favail for checking
the number of inodes.

11. Errors in expanding the name of a perl function or its arguments were not
being passed back correctly.

12. The count of lines in a message (which is used for computing the value for
the SIZE option on outgoing messages) was not being correctly set for incoming
non-local SMTP mail.

13. If no_smtp_check_spool_space is set, Exim refrains from checking that there
is enough space in the spool partition when it receives a SIZE setting on an
incoming message.

14. Added message_size_limit_count_recipients.

15. Implemented quota_warn_threshold in appendfile.

16. Running exim with -q but without -bd could cause it to crash.

17. In the delivery log line, don't print the original address in <> if the
only difference from the original address is in the case of the domain(s).

18. Removed the "debug" transport as I haven't used it for years and it is
simply clutter.

19. Write a log line when a message is abandoned because of a ridiculously long
header line.

20. If an error is detected while receiving a batch SMTP message (using -bS)
the error message that is sent now contains information about the sender and
recipients, and a copy of the headers, when such information has been read
before the error was detected.

21. If errors_to was set in forwardfile, and a headers_add option used
$local_part or any other address-specific expansion, the expansion went wrong.
(The verification of the errors_to address was clobbering the values.) This
could have applied to other directors and routers too.

22. The smtp_log_connections option should really be called
log_smtp_connections to fit in with other naming. Added the "correct" name as
a synonym, and hide the old one in displays.

23. If daemon_smtp_service was set to a named service on a machine with a byte
order different to network byte order, Exim listened on the wrong port. This
might have been introduced by change 12 of 2.03.

24. helo_verify wasn't working in the case where the helo argument was a valid
(but incorrect) host name.

25. Missing information in log for failures from multiple remote hosts.

26. If a malformed response to an SMTP command contained newlines, they were
written verbatim to the log. They are now converted to \n (and other
non-printing characters are also escaped).


Version 2.054
-------------

1. Insert missing fflush() if starting an SMTP session is rejected.

2. In the default configuration, changed the retry specification to

 *  *  F,2h,15m; G,16h,1h,1.5; F,4d,8h

The difference is that after trying every 15 minutes for 2 hours, it next tries
one hour later rather than two hours later.

3. Remove the definition of os_strsignal from the FreeBSD os.h, as it seems it
doesn't have it (ditto BSDI) and also from OpenBSD, just in case. My assumption
that it's on all BSD systems (based on NetBSD) is clearly false.

4. Updated exim_tidydb so that with the -f flag, it checks for the continued
presence of a message that has a message-specific retry record.

5. Fix exiqsumm so that it correctly recognizes domain literals in recipient
addresses.

6. The install script should now install the Texinfo documentation if
INFO_DIRECTORY is defined, and the source is available.

7. If a screwed-up host sent an SMTP response that contained LF characters,
they got left as LFs when included in the retry database. This could mess up
the format of the output from exim_dumpdb. They are now converted into \n.

8. Multiline responses from a remote host are better formatted when -d is set
for the smtp transport.

9. Fixed a very low-probability file descriptor leak in eximon; if a -J file
existed and reading the -H file failed, the -J file didn't get closed.

10. Added to the FreeBSD makefile, on Sheldon Hearn's recommendation:

.if ${PORTOBJFORMAT} == "elf"
XLFLAGS+=-Wl,-rpath,${X11BASE}/lib
.endif

It allows eximon to be built on FreeBSD ELF systems.

11. Fixed bug in libident/support.c causing crashes on malformed ident data.
Also fixed another typo bug in libident.

12. If headers_sender_verify was set and there was a syntax error in a header,
the error message just said "no valid sender". Now it gives details of the
syntax error.

13. If the expansion of headers_add for pipe and smtp transports failed, the
reason for the failure was not included in the error message (it was for
appendfile).

14. Added the "check_local_user" magic to {current,home}_directory in
forwardfile.

15. Changed the way the Makefile works when embedding Perl. The user need now
specify only EXIM_PERL=perl.o. The Makefile builder sets default values for the
other parameters at the top of the file, using the setting of PERL_COMMAND to
run Perl, when EXIM_PERL is set.

16. When an alias lookup defers because no addresses generated, include the
syntax error message in the message.

17. In the forwardfile director, the skip_syntax_errors option now applies to
filter files as well as to conventional .forward files. Added
syntax_errors_text option to forwardfile and aliasfile.

18. Fixed potential segfault crash in MBX delivery (while computing the
timestamp).

19. Added $parent_domain, $parent_local_part, $address_file, $address_pipe.

20. The router and director options "domains", "local_parts", "senders", and
their matching "except_" partners are now expanded.

21. The -bp option wasn't reading messages' -J files, and so wasn't marking
addresses "delivered" as early as it could.

22. Added the queue_only_file option.

23. The autoreply transport now has a reply_to option, and the "mail" command
in filters supports "from" and "reply-to" keywords.

24. Pedantic message correction: "all its recipients" => "all of its
recipients".

25. Added default definition of EX_CONFIG for systems that don't have it.

26. Set no_expn on the forwardfile director in the default configuration.

27. Skip logwrite in filter files when run as a result of EXPN.

28. Allow leading dots in local parts. Exim is already extended to allow null
components inside or at the end of local parts (e.g. a..b.@xyz) so it doesn't
seem worth making this extension specifically configurable.

29. Added rbl_log_rcpt_count and rbl_log_headers.

30. The setting of KEEPALIVE on an incoming socket was not being bypassed when
-bh was in use, leading to a warning message.

31. There was a long-standing problem with queue runners when a delivery that
was started by a queue runner passed on one or more TCP/IP connections to
another process. The problem was that the queue runner did not know this, and
went on to start more deliveries. If there were a large number of messages
queued for one host, this could cause too many delivery processes to be
running. The queue runner process is now told about additional descendent
processes, and it waits for them all to finish before moving on to the next
message.



Version 2.053
-------------

1. Reword message for not-found driver to emphasize which kind of driver.

2. Give pid and ppid in message about process creation failure.

3. If addresses on the command line for a -t message cause all included
addresses to get deleted, give a special "no recipients" error, mentioning the
cause. (Previously the message just never got delivered to anybody.)

4. If a user's filter file has "seen finish" with no significant deliveries,
write a log line of the form "=> discarded <address> D=director" to indicate
what has happened.

5. Added match_directory to forwardfile.

6. If match_directory was set on localuser, and it was an expanded string, and
the resulting pattern was a regular expression, and more than one address was
processed by this director such that the expansions gave differing patterns,
then things went wrong because the first pattern was used every time owing to
caching of the compiled regular expression.

7. When doing a 2-stage queue run (using the -qq option) a message about
queue_smtp was written to each individual message log (though suppressed on the
main log).

8. If the log level is set less than 5, messages about retry time not reached
are no longer written to individual message logs.

9. If the replacement string for a rewrite rule is "*" then addresses matching
the patterns and the flags are not rewritten, and no further rules are tried.

10. Added -bpr, -bpru, -bpra which are like the versions without the 'r', but
display the list in random order.

11. Added log_smtp_syntax_errors.

12. Added ${uc:} operator.

13. Added ignore_fromline_nets and ignore_fromline_local.

14. After SMTP transport errors such as "connection reset by peer" the text of
the error appeared twice in the log line.

15. Added :unknown: for use in alias files.

16. Give full search_type in debugging info for aliasfile.

17. Added generic transport option message_size_limit.

18. Added quota_filecount to appendfile, to apply when delivering into a
directory.

19. When delivering into a directory and quota was exceeded, the "time since
last read" field, which applies to individual mailboxes, was getting set to to
junk values, and could cause a retry record to time out prematurely.

20. Show sender address in debugging output.

21. Allow non-trusted users to use -f when running -bt or -bv.

22. If a transport returns PANIC, Exim used to panic log and die. Now it just
panic logs - so other addresses do get processed.

23. In aliasfile and forwardfile, the *_transport options can now be expanded
strings. If the result isn't a named transport, the address gets deferred, and
the message gets frozen.

24. Expanded transport names on directors and routers are now checked only if
the driver handles the address.

25. Bug introduced in new SMTP temporary problem handling meant that the
wait-smtp database wasn't always updated when it should have been.

26. Added support for MBX mailboxes (a) the format and (b) the locking.
Upgraded exim_lock.

27. Added body_only and headers_only generic transport options.


Version 2.052
-------------

1. Added return_path generic option to the transports. This can re-expand the
return path at transport time and do things like sticking in the recipient's
address (i.e. it makes VERP support possible).

2. If, during a remote parallel delivery in a subprocess, an SMTP error
response had a humongously long text associated with it, Exim crashed.

3. When there are no deferred addresses, convert any message-specific retry
record updates into deletes. This does some useful tidying in cases when one
host produces such an error and a subsequent one succeeds or fails hard.

4. If retry_include_ip_address was set false in an SMTP transport, then the
retrying was not searching for a rule keyed on the domain in addition to a rule
keyed on the host.

5. Added "rewrite" option to smartuser, cf aliasfile and forwardfile.

6. When verifying or testing an address, if both a director and router are set,
show both in the output, as is done on log lines for deliveries.

7. Implemented lookup_open_max for controlling the maximum number of cached
lookup opens for lookup types that use real files.


Version 2.051
-------------

1. Added bsdi4.0 as an os-type, equivalent to BSDI.

2. Removed definition of DN_EXPAND_ARG4_TYPE as u_char * for IRIX 6.5, as that
release of IRIX is now compatible with most other OS so the default is OK.

3. The exiwhat script no longer uses "cut" to fish the process numbers out of
"ps" output because it doesn't work on all systems. (IRIX 6.5 has longer pids.)
It now uses awk instead, to get the first field, whatever length it is.

4. Installed PCRE version 2.01 (Perl 5.005 compatible).

5. Revamped the way the working makefile in the build directory is created.
This also involved some modification to some of the files in the scripts
directory. At the top level one still runs "make" on its own, but this no
longer involves a nested call to "make" in order to create the lower-level
makefile (which is now called Makefile with a capital M). If run from within
the build directory, it is no longer capable of re-building itself. Further
revampings were done to ensure that the behaviour is the same on IRIX as on
other systems with regard to rebuilding. The "make" program on IRIX behaves
differently in regard to targets that are forced but don't actually rebuild the
file of that name.

6. The source has been tidied in places as a result of a -fullwarn run on the
IRIX 6.5 compiler. In Exim itself, one set of warnings, in store.c, remains; I
haven't been able to find a way to write the code so that it doesn't generate
them. In the Exim monitor, there are warnings for the modified StripChart and
TextPop modules taken from the Athena widgets.

7. LFLAGS has been set to -Wl,-LD_MSG:off=85 for IRIX 6.5. This suppresses the
warning about StripChart and TextPop overriding those in the Xaw library when
linking eximon.bin.

8. Unwanted \n at end of log message for too many message in one connection
removed.

9. Log entries for queued messages on a single SMTP connection other than the
first such message were incorrectly given as if the queueing was for too many
SMTP connections, instead of for too many messages or load average too high.

10. Changed the OS/Makefile-FreeBSD setting to X11=$(X11BASE) instead of
X11=/usr/X11.

11. Improved the output for host testing with the -bh option; more detail of
the order of testing accept/reject lists etc. is now given.

12. The pipe transport now gives the signal name in the log message when its
child is ended by signal. For Solaris 2, BSD-derived systems, and Linux, the
strsignal() function is called. For the rest, there is a built-in function that
covers the most important signals.

13. The pipe transport now attempts to give a possible explanation when its
child is ended by a non-zero exit code. As these aren't standardised, it has to
use the uncertain phrase "could mean".

14. Helo_accept_junk_hosts wasn't allowing the junk to start with [.

15. Remove trailing spaces from Local/Makefile when building Makefile, as
they can cause trouble in some of the sed commands for building scripts.

16. A new test for options settings threw up two obscure ones that were out of
alphabetical order in the source. Also some poorly worded configuration error
messages.

17. The domainlist router wasn't accepting the route_queries option if
route_list wasn't set, complaining "either route_list or route_file or
route_query required".

18. The queryprogram router had options called "user" and "group" which
conflicted with the generic options of the same name (which got invented
later, for 1.929). The options for queryprogram have been renamed
"command_user" and "command_group".

19. When the -t option was set, Exim was barfing at header lines like

  To: Recipient list not shown:;

and complaining about "empty address", even if there were valid addresses in
the Cc or Bcc headers.

20. The second part of change 10 for 2.05 was a disaster in the case of
temporary errors after MAIL FROM, DATA, and ".", because it meant that one
dodgy message could hold up other mail for the recipients involved. Backed it
out. However, the action after RCPT TO is OK, and remains.

21. If a listening daemon was run without a -q option to start queue-runners,
it could occasionally crash when a message-accepting process ended.

22. Added smtp_accept_max_per_host. Required smtp_accept_max to be set if this
or smtp_accept_queue is set.

23. Added keepalive options for incoming and outgoing SMTP.

24. Reworded the message that is output at the end of filter testing, as it was
confusing to users. (It wasn't clear that 'delivered is false' meant that the
message would be delivered normally.)

25. Bug in handling exceedingly long configuration lines fixed.

26. Added Malcolm Beattie's patch for calling Perl from string expansion.

27. A new approach to handling temporary errors in the smtp transport. Details
documented in NewStuff.

28. Bug in exiqsumm showed up under Perl 5.005; the sorting wasn't working
correctly.