SpamTitan - Comprehensive Email Protection. 99.99% Spam Detection. Blocks phishing, viruses, malware and other email threats.

Proofpoint - Proofpoint provides cloud-based email security, e-discovery and compliance solutions for companies to protect sensitive business data.

Sanebox - SaneBox is a cloud-based service that allows users to filter and manage their emails.

Hornetsecurity - Hornetsecurity offers you comprehensive, integrated managed e-mail security services.

MailCleaner - Cloud & on-premise anti spam software for businesses

Vade Secure - Email security to protect against email-borne phishing, spear phishing, malware, and ransomware. Email security and management based on artificial intelligence.