- Fortinet FortiMail Email and Workspace Security
Best for: Fortinet customers and on-premises mail servers
It belongs here because inbound and outbound protection, DLP and encryption come in one product that runs as a gateway or through an API, which suits companies that still host their own mail servers. Multi-tenancy and a managed incident response service help if a provider runs your email security. If you use no other Fortinet products, weigh how much of its value depends on that ecosystem.
From Best Email Security Solutions for Business, Fall 2026
