RGC (Routing Group Connector)

A connector in Exchange 2000 that connects routing groups to one another. An RGC is uni-directional and can have separate configuration properties (such as allowable message types over the connection). Routing Group Connectors use the concept of local and remote bridgeheads to dictate which servers in the routing groups can communicate over the link. The underlying message transport for an RGC is either Simple Mail Transfer Protocol (SMTP) or Remote Procedure Calls (RPC) and it uses link state information to route messages efficiently. [Exchange 2000]