About basic management mode : AntiSpam submenu features
AntiSpam submenu features
After you have integrated the FortiMail unit into your network by configuring the network interfaces and protected domains, you can configure the antispam and antivirus features of the FortiMail unit to protect your SMTP servers and email users. The AntiSpam submenu of the Settings menu enables you to customize these features.
Antispam and antivirus settings can be configured separately for incoming and outgoing email messages.
 
The Antispam menu of the basic mode of the web UI presents simplified controls for typical antispam and antivirus configurations. If you need to achieve a more sophisticated configuration, additional settings are available in profiles and recipient-based and IP-based policies in the advanced mode of the web UI. For more information, see “Configuring profiles” and “Configuring policies”.
See also 
• Configuring incoming mail protection
• Configuring incoming actions
• Configuring outgoing mail protection
• Configuring outgoing actions
• Incoming versus outgoing email
• Configuring the network interfaces
• Configuring protected domains