A feature supported by Microsoft Proxy Server that complements and supports reverse proxying. The proxy server uses server proxying to listen for incoming packets that are destined for computers connected to the internal network behind the proxy server. When the packets are received, the proxy server forwards them to the appropriate servers.
This allows Microsoft Exchange Server, for example, to sit securely on an internal network behind a computer running Proxy Server. Server proxying is a circuit layer proxy service that supports a wide variety of protocols.