MailXpert allows you to create an unlimited number of mailing lists with a virtually unlimited number of subscribers to each mailing list. It works by downloading messages from one or more POP3 servers and checking each message against user-defined rules and, for instance, forwarding the message to all subscribers. The built-in wizards make it easy to create three common types of mailing lists out of the box: discussion/support forum, autoresponponder and updates/news board.