3.1.4.2 Clearing a Flag on a Message Object

To clear a flag from a Message object, the client opens the object by sending a RopOpenMessage ROP request buffer ([MS-OXCROPS] section 2.2.6.1). The client then sets or deletes properties on the object by using the property ROPs that are specified in [MS-OXCPRPT]. The properties that are set depend on the particular flag used, as specified in section 3.1.4.1.1 through section 3.1.4.1.6.