1.5 Prerequisites/Preconditions

The endpoint URL that is returned by either the Autodiscover Publishing Lookup SOAP-Based Web Service Protocol, as described in [MS-OXWSADISC], or the Autodiscover Publishing and Lookup Protocol, as described in [MS-OXDSCLI], is required to form the HTTP request to the web server that hosts this protocol. The operation that this protocol defines cannot be accessed unless the correct endpoint is identified in the HTTP web requests that target this protocol.

To get the endpoint URL, the client application needs a valid mail-enabled account to authenticate with the server.