3.2.4.1 Requesting Body Properties

When a client requests the Message body, it can either use the best body algorithm as specified in [MS-OXBBODY] or directly request one of the body properties specified in section 2.2.1.58. In the second case, the server SHOULD convert whatever body property it has for the message into the requested format. For example, if the message contains the body in the PidTagBodyHtml property (section 2.2.1.58.3) and the client requests the PidTagBody property (section 2.2.1.58.1), the server converts the PidTagBodyHtml property to a plain text representation and returns this converted value.

The semantics for converting from one body format to another are implementation-dependent.