InterScan™ Messaging Security Appliance (IMSA) can take action on an email message based on the number of recipients to which the message is addressed.
To select recipient number scanning conditions:
Under Others on the scanning conditions selection screen, select the check box next to Recipient number {>, <, =} {number}.
Choose the comparison symbol (>, <, =).
Type a number to represent the number of recipients.
Continue selecting scanning conditions.
See also: