WebAvis - A web frontend to the mail scanner Amavisd-new
Rspamd - Rspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...
amavisd-new - amavisd-new is a high-performance interface between mailer (MTA) and content checkers: virus...
SpamAssassin - Use this program to "Unspam" your mailbox(es).
Proxmox Mail Gateway - Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.
MailScanner - MailScanner is a open source email security system design for Linux-based email gateways.