What recipient-end mail filters are available?

[Andy Wilson]

   Date: Tue, 30 Nov 1993 18:22:15 -0600
   From: Anthony Garcia <agarcia at sugar.NeoSoft.COM>

   I'm aware of two mail-filtering systems that operate at the
   recipient's end, procmail and Elm filter.  Are there others?

The autokill feature in GNU Emacs.

Andy

   -Anthony Garcia
   agarcia at neosoft.com