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Official Description

Easily creates Spam and Content filter rules for Mail.app E-Mails.

Features:
Use regular expressions (RegEx) or simple text to filter out Spam or other undesirable content from your mails.

– You can define a filter for the Sender, Subject, Reply, Headers and the Content itself.
– You can use the simple text filter or use regular expressions for Spam detection.
– You can test the rules before activation.
– The App do not delete your mails, it just moves them to a sub-folder on your Mac, if it finds Spam.
– The handling is very simple. Only a few steps are needed.

– Supports Mail.app and Mac OS X from 10.8.

Requirements:
– Mail.app.

Attention:
This is a standalone application but it generates rules for Mail.app only, it is not compatible with other software than Mail.app. Mail.app is responsible for activation and executing the Spam rules.