Cisco Email Security is recommended for medium to large enterprises that require advanced email protection features and have complex security needs. It is particularly suitable for organizations that are already using Cisco's suite of security products and want seamless integration with their existing infrastructure.
Barracuda Email Security Gateway - Barracuda's Email Security Gateway is a powerful antivirus filter specifically designed to identify and eliminate email-borne threats, stopping hazards before they reach the network.
Rspamd - Rspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...
Proofpoint Email Security and Protection - Learn about Proofpoint's email security solutions that protect organizations against threats such as email fraud, phishing, spam, bulk email, and viruses.
SpamAssassin - Use this program to "Unspam" your mailbox(es).
Symantec Email Security.cloud - Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats
MailScanner - MailScanner is a open source email security system design for Linux-based email gateways.