Fortinet FortiGate 4000 User Manual download pdf (Page 301)

FortiGate-4000 Installation and Configuration Guide Version 2.50

FortiGate-4000 Installation and Configuration Guide 301

Email filter

Email filtering is enabled in firewall policies. When you enable Anti-Virus & Web filter

in a firewall policy, you select a content profile that controls how email filtering

behaves for email (IMAP and POP3) traffic. Content profiles control the following

types of protection to identify unwanted email:

• filtering unwanted sender address patterns,

• filtering unwanted content,

• exempting sender address patterns from blocking.

This chapter describes:

• General configuration steps

• Email banned word list

• Email block list

• Email exempt list

• Adding a subject tag

General configuration steps

Configuring email filtering involves the following general steps:

1 Select email filter options in a new or existing content profile. See “Adding content

profiles” on page 224.

2 Select the Anti-Virus & Web filter option in firewall policies that allow IMAP and POP3

connections through the FortiGate unit. Select a content profile that provides the email

filtering options that you want to apply to a policy. See “Adding content profiles to

policies” on page 226.

3 Add a subject tag to the unwanted email so that receivers can use their mail client

software to filter messages based on the tag. See “Adding a subject tag” on page 306.

Note: For information about receiving email filter log messages, see “Configuring logging” in the

Logging Configuration and Reference Guide. For information about email filter log message

categories and formats, see “Log messages” in the FortiGate Logging Configuration and

Reference Guide.

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Fortinet FortiGate 4000 User Manual Page 301