Enable SpamSieve for more Powerful Spam Filtering

SpamSieve works with Postbox via an add-on on Mac OS X. SpamSieve complements Postbox with powerful spam filtering. Make sure you are running the latest version of SpamSieve and then follow the SpamSieve instructions for using it with Postbox.

Note: SpamSieve will work with Postbox 2.0 and later (not Postbox Express) from Postbox, Inc (non–Mac App Store version).