... management. Exchange now allows admin-istrators to configure front-end servers that handle client access and back-end servers that handle the databases themselves. The front-end server becomes the point ... front-end server and makes a request using a particular protocol.2.The front-end server relays the request to the back-end server using the same protocol used by the client.3.The back-end ... routing groups in your organization:Many Exchange servers do not have full-time, reliable, and direct SMTP connectivity to one another. This may be the case if your orga-nization spans large...