The 1.5 version of MailGuardian for Mac is available as a free download on our website. The program lies within Communication Tools, more precisely E-mail. This Mac application is a product of SubRosaSoft.
From the developer:
SubRosaSoft Mailguardian is a collection of tools that help guard your e-mail. Integrating automated redirecting and very flexible blocking, it not only helps manage your important or urgent e-mails but can remove most unwanted e-mails before you have to bother with a long list of spam.
You may want to check out more Mac applications, such as Mail-Grab, PageSender or HeavyMail, which might be related to MailGuardian.