2.2.2 POST Method

All requests in this protocol are made using the POST method, as specified in [RFC2616].

The destination server, request path, and optional parameters for accessing a given mailbox are returned in URIs from Autodiscover. A separate URI is returned in Autodiscover for each endpoint. The URI is used by the server to route a request to the appropriate mailbox server. 

This protocol uses a common request and common response format for all endpoints. Body content that depends on the request type, as specified in section 2.2.4, follows the common request or common response to complete the request or response.

All requests MUST be authenticated prior to being processed by server. No anonymous requests are allowed.