Can I use procmail or mailfilter to control my mail?
Yes, premium accounts currently use procmail to deliver the mail. Email only accounts use mailfilter. In each premium account home directory is a file called .procmailrc that contains your rules for delivering mail. You are encouraged to read this procmail tutorial to help guide you through configuring it. Eventually, we will be switching all accounts to use mailfilter for mail delivery and filtering. We are also in the process of creating a web control panel tool that will help you edit your procmail and mailfiter rules and a more straight forward manner.