The SMTP instance '{0}' on server {1} is configured to route all messages via smart host '{2}'. Remove this option if this ...

The SMTP instance '{0}' on server {1} is configured to route all messages via smart host '{2}'. Remove this option if this SMTP instance is set as the source or target transport server of a routing group connector between an Exchange Server 2007 routing group and an Exchange Server 2003 routing group.