On 14 Jul 2005 20:08:35 -0700, XXXX@XXXXX.COM hired a team
of monkeys to write:
Writing categorizer event sinks is non-trivial and there's not a whole
lot of documentation out there. Can you describe your needs a
little more? Do messages sent by these users need to be processed if
the recipients are internal, or only if they are destined for external
recipients? If it's just to external recipients you may be able to
bypass the need for an event sink altogether and use restrictions on
SMTP connectors to force mail from these recipients through a specific
connector which routes their outbound Internet e-mail to a smart host
(your external server) for processing.
 And if it's also for internal mail you'd potentially need to write
several event sinks to achieve a fluid and robust system.
Messaging Services Architect
Emergency Mail System: http://www.yqcomputer.com/