Spamfence.net
SPAMfighter
Spamihilator
Mailwasher
Spam Reader
SpamAssassin
POPFile
Proxmox Mail Gateway
Barracuda Email Security Gateway
Proofpoint Email Security and Protection
Symantec Email Security.cloud
Cisco Email Security
FortiMail
Area 1 Security
Security Gateway
Paubox
Spamfence.netSPAMfighter - SPAMfighter and Microsoft have built the strongest and most effective anti spam filter for Outlook, Windows Live Mail, Outlook Express & Thunderbird
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.
Spamihilator - The free Anti-Spam-Filter Spamihilator removes more than 98% of spam mails before they even get into your inbox.
Symantec Email Security.cloud - Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats
Mailwasher - Over 8 million people use MailWasher as their spam filter
Cisco Email Security - Cisco Email Security protects against ransomware, business email compromise, spoofing, and phishing.