A component of Microsoft Exchange Server that enables interoperability between Exchange Server and Microsoft Mail version 3 for PC networks and for AppleTalk networks. This connector allows Exchange to coexist with legacy Microsoft Mail networks while an upgrade to these networks is under consideration. The Microsoft Mail Connector is implemented as a Microsoft Windows NT service on an Exchange server.
If you are implementing connectivity between Exchange and Microsoft Mail on a local area network (LAN), the Microsoft Mail Connector is sufficient to connect to Microsoft Mail postoffices to transfer messages. If you are using a modem or an X.25 connection, you must install the Microsoft Mail External program on the remote Microsoft Mail postoffice server.