CleanMail is a complete Anti-Spam/Anti-Virus solution (SMTP/POP3) that works with any mail server like Microsoft Exchange, Microsoft Small Business Server (SBS), Lotus Notes/Domino or IMail. CleanMail includes a comprehensive set of filters, including an attachment blocker, remote blacklist filter (DNSBL), anti-virus filter and a complete Windows build of the award-winning, open-source SpamAssassin filter.