What is SpamAssassin?
SpamAssassin is a server-based email filtering application that attempts to identify spam messages. When identified, SpamAssassin simply marks the message as potential spam and then continues to deliver the email to your account as normal. SpamAssassin will NOT (by default) delete or move any email messages, but it will insert certain identifiers in the message header which allows you to filter the message using your email client’s filters. In the coming months, we’ll also have a SpamAssassin module in our Account Manager so you can modify how SpamAssassin works for your account automatically.
Spam Assassin is an easy-to-use system that uses a set of rules to identify spam and flag it as such so that it is easily filtered. Spam Assassin evaluates incoming mail, looking for particular characteristics that are common in spam emails, and assigns points for every characteristic it finds. If a particular email earns enough points when examined by Spam Assassin, that email will be caught by Graymail and not delivered. Spam Assassin also includes a report of which of its rules were triggered by a marked message.