The Exchange Server Protocols Master Property List provides implementers with a single source of information about all the properties that are described by the specifications that comprise the Exchange Server Protocols documentation. If a property is not described by the specifications included in the Exchange Server Protocols documentation, it is not included in this document.
The criteria for including a property in the Exchange Server Protocols documentation are that it is set by a client in order to affect server behavior, or that it is set by a server in order to affect client behavior. Properties that are merely stored by the server on behalf of the client, or generated by the server for its own use and ignored by the client, are not necessarily documented. As a result, the properties that are included in the Exchange Server Protocols documentation, and therefore this document, are the critical Message object properties used for communication between clients and servers.
This document provides implementers with a convenient catalog of all these critical properties, a source of navigation to the individual technical specifications that describe these properties in detail, and a resource for additional helpful property information that is unique to this document.
Sections 1.7 and 2 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in RFC 2119. All other sections and examples in this specification are informative.