InterScan™ Messaging Security Appliance (IMSA) can take action on an email message based on the size of an individual attachment.
To select attachment size scanning conditions:
Under Attachment on the scanning conditions screen, select the check box next to Size is {>, <, =} {size} {MB, KB, B}.
Choose the comparison symbol (>, <, =).
Type a number to represent the size.
Choose Megabytes, Kilobytes, or Bytes (MB, KB, B).
Continue selecting scanning conditions.
See also: