Bains Software today released SpamSweep v1.5, an update to its powerful spam filter for Mac OS X. SpamSweep is an advanced bayesian spam filter with a simple, easy-to-understand interface. SpamSweep seamlessly combines many filtering technologies, including domain and relay blacklists, sender whitelisting, and a bayesian filter to automatically delete spam messages before they're downloaded by your email client. SpamSweep can notify users of new good mail by playing a sound, displaying an alert, or triggering an email client. This version is a Universal Binary and features improved accuracy and tighter integration with email clients. SpamSweep is $25 shareware; it will only filter one account in trial mode.