MHS: Circular Routing Through the MHS Gateway

CAUSE

The "stuck" messages are actually messages from the postmaster at MSMail to the postmaster at MSMail. The gateway tried to deliver a message to POSTMAST@MSMAIL {NET1/PO1/POSTMASTER}. However, the user did not create a postmaster account; therefore, the External Mail program generated a nondelivery notice and sent it back to the originator, which was also POSTMAST@MSMAIL {NET1/PO1/POSTMASTER}. Since the mail was routing through the MHS gateway each cycle, the External Mail program never had the opportunity to consider it as a circular route.