The reason I ask is that it appears that a number of nodes mentioned there that can not be reached reliably. It seems that this list is used to distribute various messages to the backbone. In particular, it appears that the X-SPAM messages are sent here. When our server recently sent over 75,000 x-spam messages, lots of them bounced after 3 days of attempted delivery. So now I am looking at thousands of bounce messages. Being on the backbone is getting more painful. Some of the addresses I had trouble with are <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> <[log in to unmask]> -- Cheerfulness is contagious, but don't wait to catch it from others. Be a "carrier". Bill Verity - 814-865-4758 Fax: 814-863-7049 215A Computer Building - Information Technology Services, Penn State University At the office - on my Mac, of course ;-)