Bayesian spam filtering plug-in for Outlook Express prevents annoying spam and junk emails from polluting your Inbox. Get only wanted emails in your Inbox and nothing else! Fully supports your Address Book. Allows or blocks email addresses or whole Internet domains you want. Bounces email back to spammers. Auto-delete expired spam emails. Built-in Backup and Restore Wizard. Detailed statistics on the work done. Version 4 may include unspecified updates, enhancements, or bug fixes.