InterScan™ Messaging Security Appliance (IMSA) can analyze true file types to determine whether to take action on an email message based on the type of attachment.
To select true file type scanning conditions:
Under Attachment on the scanning conditions selection screen, select the check box next to True file type.
Click True file type. The Attachment True File Type screen appears.
Next to Select, select one of the following:
Selected attachment types—IMSA takes action on email messages with attachments of the selected types.
Not the selected attachment types—IMSA takes action on email messages with attachments which are not of the selected types.
Select the check boxes next to the true file types to filter.
Click Save to continue selecting scanning conditions.
See also: