Release Notes - SPAMCONTROL 2.1 (Warlord edition)
=================================================

These release notes have been conducted
to guide potential users upgrading from
SPAMCONTROL 2.0 to 2.2.


New Features:
-------------

* SPAMCONTROL includes now the 'qmail-smtpd-viruscan-1.1.patch'
  from Russell Nelson and Charles Cazabon in a modified version.
* Filtering of 'badmimetypes' is faciliated by either the
  environment variable $BADMIMETYPE and/or the control file
  'badmimetypes.cdb'.
* This cdb is generated from the file 'badmimetypes'
  with the included executable 'qmail-newbmt' (man qmail-newbmt). 
* Additionally, SPAMCONTROL allows now a Whitelisting for
  (local) recipients. SMTP recipients (with full qualified address)
  may reside in serveral cdbs which are available through the
  new control file control/recipients. The cdbs can be created
  with program 'qmail-recipients' and are 'fastforward' compatible.


Bugs fixed/Compatibility issues:
--------------------------------

* The SMTP Auth implementation as been revised and conforms
  now to the 'checkpassword' interface, even for CRAM-MD5.
* Thus, you have to upgrade to 'cmd5checkpw' version 0.30 or
  any other 'checkpassword' compatible PAM.
* As with SPAMCONTROL 2.0, I omitted the additional 'hostname'
  parameter in the call of the PAM; this caused more Open
  Relays then other configuration failures.
* The 'SINGLEQUOTES' in SMTP envelope addresses should
  work now. Thus, Mail From: <"tim.o'reilly@oreilly.com">
  is correctly interpreted, als well as <'foo@bar.com'>.
* Trailing blanks in Mail From: <return-path > can be optionally
  removed for DNS MX lookups.
* The SMTP Replies issued, are in accordance with RFC 2821.
* The EMSSC have been reworked to adjust to RFC 1893.
* SMTP addresses can be enforced to be sandwiched
  in brackets (required by RFC 2821).


Userland Changes/Control files:
-------------------------------

* The 'badmailpatterns' has been removed and the function 
  merged into 'badmailfrom'.
* The 'badrcptpatterns' has been removed and the function 
  merged into 'badrcptto'.
* The 'nomfdnscheck' control file has been removed.
* The 'maxrecipient' control file has been removed.
* SMTP Authentication yields a 'privileged' state (man qmail-smtpd).
* The environment variable 'NULLSENDERMULTRCPTS' has been removed.
* The environment variable 'BADMIMETYPE' can not be longer used
  to carry specific 'badmimetypes'.


Administration/Logging:
-----------------------

* The log format of qmail-smtpd has been changed;
  now a extensible log format is provided, 
  interfacing cleanly with 'tcpserver'/'multilog'.
* For admins still using 'splogger' a 'qmail-smtpd'
  prepend can be added. 
* A complete log of all qmail-smtpd sessions can be written.


Documentation/Man pages:
------------------------

* The included documentation has been updated to
  reflect correctly the changes.
* The man pages have been updated and improved.


Co-Requirements:
----------------

* For SMTP Authentication using CRAM-MD5,
  you have to upgrade to cmd5checkpw version 0.30.
* It might be necessary to enlarge the softlimit
  settings on your system running qmail-smtpd.


Erwin Hoffmann (www.fehcom.de), Cologne 2003-12-16