Spamihilator uses two filtering methods to reach maximum spam protection. In step one, Spamihilator scans every new mail with the Learning Filter. If this method is not able to categorize a mail as spam or non-spam, it will be processed by the Word Filter.
You can disable one or both filters in Spamihilator's settings dialog.
Furthermore, Spamihilator supports plugin filters - additional filters that can be included in the filtering process. The latest version already includes five plugins: The Image Filter, the Attachment Filter, the DCC Filter, the Link Filter and the Newsletter Plugin.
You can download more plugins from the Spamihilator website.