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.

Spamihilator - The free Anti-Spam-Filter Spamihilator removes more than 98% of spam mails before they even get into your inbox.

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).

Cisco Email Security - Cisco Email Security protects against ransomware, business email compromise, spoofing, and phishing.

Spam Reader - Spam Reader is a free anti-spam add-on for Microsoft Outlook.