Comprehensive Email SecurityProven Security FortiMail appliances and virtual appliances are proven, powerful email security platforms for any size organization - from small businesses to carriers, service providers, and large enterprises. Purpose-built for the most demanding messaging systems, FortiMail appliances employ Fortinet''s years of experience in protecting networks against spam, malware, and other message borne threats. Intelligent Protection FortiMail prevents your email systems from becoming threat delivery systems. Its inbound filtering engine blocks spam and malware before it can clog your network and affect users. Its outbound inspection technology prevents other antispam gateways from blacklisting your users by blocking outbound spam and malware, including mobile traffic.