How to Remove the Last Exchange 5.5 Server

Move the Messaging Connectors
Transfer any messaging bridgehead connections from the server to an Exchange 2000 server in the site. My company runs a hub-and-spoke Exchange messaging architecture. All intersite messaging traffic for the administrative group travels over an X.400 connector to a central hub site. The messaging team created a new X.400 connector to the hub site on one of the Exchange 2000 servers and deleted the X.400 connector on the Exchange 5.5 server.

Remember that when you use X.400 connectors to connect sites, you need to set up the configuration address space in both sites. The X.400 address space is composed of country/region name, Administrative Management Domain (ADMD) name, private management domain name (p), organization name (o), and organizational unit (OU). To configure the address space, use the Microsoft Exchange Administrator program and go to the Connected Sites tab of the X.400 connector's Properties dialog box. . . .