mailscanner

MailScanner is an e-mail security and anti-spam package for e-mail gateway systems. It is not designed to be run on Microsoft Windows desktop PCs. Instead, it is designed to be run on mail servers operated by companies and internet service providers (ISPs) so that all their users and customers can be protected from one place. This avoids the need for any software to be installed on individual desktop PCs at all. The software works with any Unix-based system and is compatible with a wide range of mail transports. It comes with support for any combination of 25 different virus scanner packages, including the free ClamAV scanner, and its design allows the use of multiple virus scanners in parallel to increase the level of security. Protection against spam is mostly based on the widely acclaimed SpamAssassin package, which again is free and open source. It is supplemented with fast blacklist lookups that can be used to reject a large proportion of messages with minimal overhead.

www.mailscanner.info