Autodiscover Reference (SOAP)
The Autodiscover service provides the configuration information necessary to create a connection to an Exchange server. The SOAP Autodiscover service provides a mechanism that allows you to use SOAP as the messaging framework for messages that are sent between the client application and the Exchange server to locate the settings that a client application must have in order to connect to Exchange.
For Microsoft Exchange Server 2010 and later versions, we recommend that you use the SOAP Autodiscover service (instead of the POX Autodiscover service). For more information, see Working with Autodiscover.
This section provides examples and descriptions of the messages that are used to retrieve Autodiscover configuration information by using the SOAP Autodiscover service.