Tagged Message Delivery Agent (TMDA)
Copyright (C) 2001,2002,2003 Jason R. Mastaler <jason@mastaler.com>

This software is OSI Certified Open Source Software.
OSI Certified is a certification mark of the Open Source Initiative.

TMDA is an open source software application designed to significantly
reduce the amount of spam (Internet junk-mail) you receive.  TMDA
strives to be more effective, yet less time-consuming than traditional
spam filters.  TMDA can also be used as a general purpose local mail
delivery agent to filter, sort, deliver and dispose of incoming mail.
                                                   
The technical countermeasures used by TMDA to thwart spam include:

* whitelists: accept mail from known, trusted senders.

* blacklists: refuse mail from undesired senders.

* challenge/response: allows unknown senders which aren't on the
  whitelist or blacklist the chance to confirm that their message is
  legitimate (non-spam).

* tagged addresses: special-purpose e-mail addresses such as
  time-dependent addresses, or addresses which only accept certain
  kinds of communication.  These increase the transparency of TMDA for
  unknown senders by allowing them to safely circumvent the
  challenge/response system.

For more information, visit the TMDA homepage:

  <URL:http://tmda.net/>

Information on the TMDA mailing lists can be found at:

  <URL:http://tmda.net/lists/listinfo/>
		
INSTALL says how to install and configure TMDA.

UPGRADE contains upgrade instructions from selected releases.

CRYPTO explains the cryptography used in TMDA.

THANKS contains acknowledgments and thanks.

COPYING contains licensing information.

