v2.1 - 06/02/2004

	- Added POLICY_DISCARD option to discard messages silently instead of
	  rejecting them.

v2.0 - 04/16/2004

	- Fixed bug where outgoing messages were not being determined properly
	  when sending IP resolves in DNS.

v1.9 - 04/07/2004

	- Do not ignore system-generated incoming emails by default anymore
	  (IGN_SYSGEN option)
	- Fixed bug where SIGCHLD can accidentally kill processes if subprocess
	  spawns others, such as using DCC with SpamAssassin

v1.8 - 08/03/2003

	- SpamAssassin support now defaults to persistant object. This seems
	  to reduce memory footprint.
	- Added support for KEY request
	  (Thanks to Steven Carr <steven.carr@ish.de>)

v1.7 - 05/20/2003

	- Fixed UTF-8/Unicode errors when reading in messages for 
	  SpamAssassin
	- Update documentation to reflect new versions of CommuniGate

v1.6 - 04/27/2003

	- Support for INTF query required for newer versions of CommuniGate
	- SpamAssassin support has been improved to add headers to messages
	- Removed TESTONLY parameters

v1.5 - 08/10/2002

	- Ignore SpamAssassin base64 decoding errors
	- Add test-only variables to test what would have been rejected for SA 
	  or incoming
	- Debugging, can dump 'bad' messages to /tmp
	- Default to non-persistent SpamAssassin objects for better memory usage
	- Added sysgen table to schema and archive_throttle.pl
	- Minor code cleanups
	- Added section to README on 'Finding Local Users With Spam Dropboxes'

v1.4 - 04/29/2002

	- Major redesign to allow throttling of incoming mail as well as outgoing
	- Added 'insert delayed' syntax to speed up MySQL inserts ($INSERT_DELAYED)
	- Configuration section changed to support incoming/outgoing specific
	  settings
	- Can now disable generic throttling by setting THROTTLE_MSGS = 0
	- Changed archive_throttle.pl to delete only 250 rows at a time to prevent
	  long locks
	- Note that DB schema (schema.sql) has changed, specifically the addition
	  of the 'incoming' table
	- Check and ignore system generated mails when processing incoming mail
	- Basic SpamAssassin support has been added
	- Added 'incoming' to archive_throttle.pl

v1.3 - 03/28/2002

	- Sometimes children didn't die on exit, causing CG to hang waiting
	  for processes to finish. Forcing a kill now.
	- Added subject throttling based on number of messages without
	  any recipient limit required ($SUBJ_LAST_MSG_STRICT_*)
	- Explicitly set DBI AutoCommit on
	- Better handling of PERL warnings. A warning could previously hang the filter.
	  Now they are sent to the main logfile.
	- Child process logging to $LOGFILE.PID added if $DEBUG >= 15
	- umask is set to 022 so logfiles are not world writable
	- Messages without subjects caused minor warnings, fixed
	- Added suspend_log table which spam_report.pl now logs to
	- Other minor bug fixes

v1.2 - 03/09/2002

	- Changed to 'interval' syntax in SQL
	- Added subject throttling feature to catch slow spammers
	- Split up queries instead of join
	- Fixed minor off-by-one comparison in the limits (>= instead of >)
	- Check exempt_users table before any other checks instead of after
	- Fixed problem in spam_report.pl when dealing with NULL subjects
	- Changed archive_throttle.pl script to use temporary tables for
	  better performance
	- Major code cleanup and rewrite, switched to perl -w, use strict

v1.1 - 02/27/2002

	- Added recipient limitation as well as message limitation
	- Included sample archiving and spam reporting script
	- Optimized tables and queries, new schema.sql

v1.0 - 02/08/2002

	- Initial release.