Chapter 15 Security Profiles : Email filter
  
Email filter
This section describes how to configure FortiGate email filtering for IMAP, POP3, and SMTP email. Email filtering includes both spam filtering and filtering for any words or files you want to disallow in email messages. If your FortiGate unit supports SSL content scanning and inspection, you can also configure spam filtering for IMAPS, POP3S, and SMTPS email traffic.
The following topics are included in this section:
Email filter concepts
Inspection Modes
Email filter techniques
Order of spam filtering
Spam actions
Email traffic types to inspect
Configuring an Email Filters
Email filter examples