Exim version 4.52 ----------------- TF/01 Added support for Client SMTP Authorization. See NewStuff for details. PH/01 When a transport filter timed out in a pipe delivery, and the pipe command itself ended in error, the underlying message about the transport filter timeout was being overwritten with the pipe command error. Now the underlying error message should be appended to the second error message. TK/01 Fix poll() being unavailable on Mac OSX 10.2. PH/02 Reduce the amount of output that "make" produces by default. Full output can still be requested. PH/03 The warning log line about a condition test deferring for a "warn" verb was being output only once per connection, rather than after each occurrence (because it was using the same function as for successful "warn" verbs). This seems wrong, so I have changed it. TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that it should not have, which might have caused a crash in the right circumstances, but probably never did. PH/04 Installed a modified version of Tony Finch's patch to make submission mode fix the return path as well as the Sender: header line, and to add a /name= option so that you can make the user's friendly name appear in the header line. TF/03 Added the control = fakedefer ACL modifier. TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to Mark Lowes for thorough testing. TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0. TK/03 Merged latest SRS patch from Miles Wilton. PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts with the definition in sysexits.h (which is #included earlier). Fortunately, Exim does not actually use EX_OK. The code used to try to preserve the sysexits.h value, by assumimg that macro definitions were scanned for macro replacements. I have been disabused of this notion, so now the code just undefines EX_OK before #including unistd.h. PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout in the smtp transport. When a block could not be written in a single write() function, the timeout was being re-applied to each part-write. This seems wrong - if the receiver was accepting one byte at a time it would take for ever. The timeout is now adjusted when this happens. It doesn't have to be particularly precise. TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for details. Thanks to Chris Webb for the patch! PH/07 Added "fullpostmaster" verify option, which does a check to without a domain if the check to fails. SC/01 Eximstats: added -xls and the ability to specify output files (patch written by Frank Heydlauf). SC/02 Eximstats: use FileHandles for outputing results. SC/03 Eximstats: allow any combination of xls, txt, and html output. SC/04 Eximstats: fixed display of large numbers with -nvr option SC/05 Eximstats: fixed merging of reports with empty tables. SC/06 Eximstats: added the -include_original_destination flag SC/07 Eximstats: removed tabs and trailing whitespace. TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller. TK/06 MBOX spool code: Add real "From " MBOX separator line so the .eml file is really in mbox format (even though most programs do not really care). Patch from Alex Miller. TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers. The latter is generated from $received_to and is only set if the message has one envelope recipient. SA can use these headers, obviously out-of-the-box. Patch from Alex Miller. PH/08 The ${def test on a variable was returning false if the variable's value was "0", contrary to what the specification has always said! The result should be true unless the variable is empty. PH/09 The syntax error of a character other than { following "${if def:variable_name" (after optional whitespace) was not being diagnosed. An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an accidental colon was present, for example, could give incorrect results. PH/10 Tidied the code in a number of places where the st_size field of a stat() result is used (not including appendfile, where other changes are about to be made). PH/11 Upgraded appendfile so that quotas larger than 2G are now supported. This involved changing a lot of size variables from int to off_t. It should work with maildirs and everything. TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of spamd dying while we are connected to it. TF/05 Fixed a ${extract error message typo reported by Jeremy Harris PH/12 Applied Alex Kiernan's patch for the API change for the error callback function for BDB 4.3. PH/13 Changed auto_thaw such that it does not apply to bounce messages. PH/14 Imported PCRE 6.0; this was more than just a trivial operation because the sources for PCRE have been re-arranged and more files are now involved. PH/15 The code I had for printing potentially long long variables in PH/11 above was not the best (it lost precision). The length of off_t variables is now inspected at build time, and an appropriate printing format (%ld or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T to be "long long int" or "long int". This is needed for the internal formatting function string_vformat(). PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in the configuration file to be ":syslog", then the script "guesses" where the logs files are, rather than using the compiled in default. In our case the guess is not the same as the compiled default, so the script suddenly stopped working when I started to use syslog. The patch checks to see if log_file_path is "". If so, it attempts to read it from exim with no configuration file to get the compiled in version, before it falls back to the previous guessing code." TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with implementing BATV in an Exim configuration. See NewStuff for the gory details. PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and Makefile that are specific to HP-UX. PH/18 If the "use_postmaster" option was set for a recipient callout together with the "random" option, the postmaster address was used as the MAIL FROM address for the random test, but not for the subsequent recipient test. It is now used for both. PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The patch removes a few documentation additions to RFC 3028, because the latest draft now contains them. It adds the new en;ascii-case comparator and a new error check for 8bit text in MIME parts. Comparator and require names are now matched exactly. I enabled the subaddress extension, but it is not well tested yet (read: it works for me)." PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to rework some of the code of TK/09 above to avoid the hardwired use of "%lld" and "long long". Replaced the call to snprintf() with a call to string_vformat(). PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX records point to non-existent hosts", "retry timeout exceeded", and "retry time not reached for any host after a long failure period". PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with experimental DomainKeys support: (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken. (2) On an error such as an illegally used "control", the wrong name for the control was given. These problems did NOT occur unless DomainKeys support was compiled. PH/23 Added daemon_startup_retries and daemon_startup_sleep. PH/24 Added ${if match_ip condition. PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints databases so that it will be absolutely obvious if a crash occurs in the DB library. This is a regular occurrence (often caused by mis-matched db.h files). PH/26 Insert a lot of missing (void) casts for functions such as chown(), chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were picked up on a user's system that detects such things. There doesn't seem to be a gcc warning option for this - only an attribute that has to be put on the function's prototype. It seems that in Fedora Core 4 they have set this on a number of new functions. No doubt there will be more in due course. PH/27 If a dnslookup or manualroute router is set with verify=only, it need not specify a transport. However, if an address that was verified by such a router was the subject of a callout, Exim crashed because it tried to read the rcpt_include_affixes from the non-existent transport. Now it just assumes that the setting of that option is false. This bug was introduced by 4.51/PH/31. PH/28 Changed -d+all to exclude +memory, because that information is very rarely of interest, but it makes the output a lot bigger. People tend to do -d+all out of habit. PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the code in os-type was giving problems when libc.so lives in lib64, like on x86_64 Fedora Core. PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These aren't the modern standard, and it seems that some systems' include files don't always have them. Exim was already checking for some of the newer ones like T_AAAA, and defining it itself. I've added checks for all the record types that Exim uses. PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was not automatically generating a new one, as it is supposed to. This prevented TLS from working. If the file did exist, but contained invalid data, a new version was generated, as expected. It was only the case of a non-existent file that was broken. TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction with a change in libdomainkeys > 0.64. TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved from DNS. If the selector record carries the flag, it now has precedence over the domain-wide flag. TK/12 Cleared some compiler warnings related to SPF, SRS and DK code. PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as the use of a port name that isn't defined in /etc/services) occurred, the message was deferred as in a normal delivery, and thus remained on the spool, instead of being failed because of the mua_wrapper setting. This is now fixed, and I tidied up some of the mua_wrapper messages at the same time. SC/08 Eximstats: whilst parsing the mainlog(s), store information about the messages in a hash of arrays rather than using individual hashes. This is a bit cleaner and results in dramatic memory savings, albeit at a slight CPU cost. SC/09 Eximstats: added the -show_rt and the -show_dt flags as requested by Marc Sherman. SC/10 Eximstats: added histograms for user specified patterns as requested by Marc Sherman. SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified. PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of fopen() in the content-scanning modules that did not already have it. ****