Clyton is an email client with advanced security and spam filtering features. The spam filter is highly configurable and supports DNS blacklist checking (DNSBL). Expect 85% of spam to be eliminated with the default configuration. The built-in address book supports personalized mass-mailings. Other features include encrypted storage, whitelisting, attachment viewer, drag and drop, custom message templates, SSL encryption, and much more.
602LAN SUITE is an easy-to-install and manage all-in-one network software suite providing secure e-mail services with anti-virus & anti-spam, fax support, built-in firewall with NAT and web content filter proxy for controlled Internet sharing. Combine the content based Bayesian anti-spam filter, blacklists & whitelists together with e-mail attachment filtering to provide complete junk e-mail protection. The 5 user version is FREE!
ORF Enterprise Edition is an enterprise-level anti-spam solution that helps you to block spam before it reaches your network. ORF uses a combination of anti-spam technologies and custom filtering options to stop the spam on SMTP protocol level.
ORF can be used with Windows 2000's/2003's built-in IIS SMTP Service and Microsoft Exchange Servers (which use this service for SMTP communication).
mxORB is a server-side spam filter that consistently blocks over 98% of unsolicited commercial email (also known as spam) at a fraction of the cost of other filtering solutions. mxORB is packed with all of the features you will need to eliminate spam. The amazing low price coupled with a success rate of over 98% gives it an unassailable position in today's marketplace.