We have released a version of MPP Manager that merged a lot of work for enhancements in policy selection, content filtering and custom spam scoring.  This GUI supports:

Ability to assign email policy based on any content in the email header, body or attachment

New content filtering engine is implemented with per-expression actions

Enhancements to MPP custom spam scoring for negative scores and content based spam scoring.

ftp://ftp.messagepartners.com/pub/mppmanager/beta/mppmanager-1.4.7.tar.gz