This package provides a spam filter based on the article 'A Plan for Spam' by Paul Graham. It uses a database (either BerkeleyDB or a simpler hash file) to store one- and two-word phrases. Only certain headers are analyzed and HTML tags are ignored to prevent false positives of legitimate HTML emails. Image attachments are considered as words that can signal spam. It can be simply integrated with procmail or maildrop to filter spam on incoming mail.