The values for PidTagPriority in section 2.2.1.12 of MS-OXCMSG seem to be mixed up. Outlook Spy reports 0x1 as urgent, and 0xffffffff as non-urgent. Is the documentation correct?
Hi Luke, thanks for your post regarding the [MS-OXCMSG] protocol specification. One of the Open Specification Documentation team will be in touch with you shortly. Thanks!