1.3 Overview

The Special Folders Protocol is used to create and open a folder that is part of the set of default folders within a mailbox. Each of these special folders stores a particular type of Message object. For example, there is a special folder for e-mail messages, another for appointments, and another for contacts. A complete list of the special folders, along with descriptions and the type of data contained in each special folder, is provided in section 2.2.1.

Each special folder has an identifier. The identifier ensures that the same special folder will continue to be used to store a particular type of Message object after the folder is created.

The Special Folders Protocol extends the Folder Object Protocol by defining additional constraints and adaptations for creating and accessing special folders. For information about the Folder Object Protocol, see [MS-OXCFOLD].