The most valuable features are filtering and sandboxing.
FortiMail Cloud is very fast.
It allows for dragging and dropping, which is much faster than writing HTML and CSS.
What is Cloud Email?
IT Central Station users discussed what the most important features of a cloud email service were, and the consensus pointed to usability. This includes the service's reliability/availability, support, and migration/integration abilities as well as its compatibility with other applications. On top of the basic user friendliness of the cloud email, members want to see clean a web interface and solid security features in place, along with easy customization that contributes to a strong market perception overall.