Chapter 4 FortiOS Carrier : MMS Security features : MMS content-based Antispam protection : Overview
  
Overview
A school computer lab may block age-inappropriate content. A place of business may block unproductive content. A public access internet cafe may block offensive and graphic content. Each installation has its own requirements for what content needs to be blocked, and in what language.
FortiOS Carrier provides the ability to create custom local dictionaries, black lists, and white lists in multiple languages enables you to protect your customers from malicious content around the world.
Content-based protection includes:
Configurable dictionary
Black listing
White listing