Fortinet FortiGate-800 User Manual download pdf (Page 287)

Antivirus protection Exempting fragmented email from blocking

FortiGate-800 Installation and Configuration Guide 287

Exempting fragmented email from blocking

A fragmented email is a large email message that has been split into smaller

messages that are sent individually and recombined when they are received. By

default, when antivirus protection is enabled, the FortiGate unit blocks fragmented

emails and replaces them with an email block message that is forwarded to the

receiver. It is recommended that you disable the fragmenting of email messages in the

client email software.

To exempt fragmented emails from automatic antivirus blocking

1 Enable Pass Fragmented Emails for IMAP, POP3, and SMTP traffic in a content

profile.

2 Select Anti-Virus & Web filter in a firewall policy. For example, to pass fragmented

emails that internal users send to the external network, select an internal to external

policy.

3 Select a content profile that has Pass Fragmented Emails enabled for the traffic that

you want the FortiGate unit to scan.

Viewing the virus list

You can view the names of the viruses and worms in the current virus definition list.

To view the virus list

1 Go to Anti-Virus > Config > Virus List.

2 Scroll through the virus and worm list to view the names of all viruses and worms in

the list.

Caution: The FortiGate unit cannot scan fragmented emails for viruses or use file pattern

blocking to remove files from these email messages.

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Fortinet FortiGate-800 User Manual Page 287