CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
SpamAssassin - Use this program to "Unspam" your mailbox(es).
SiteLock - SiteLock software provides advanced website security, daily security scans, web app firewall with a CDN to deliver content more securely.
MailScanner - MailScanner is a open source email security system design for Linux-based email gateways.
Sqreen - Sqreen is a web application security monitoring and protection solution helping companies protect their apps and users from attacks. Get started in minutes.
Rspamd - Rspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...