2.1.3.2.22 Sender Id Status
To generate an X-MS-Exchange-Organization-SenderIdResult header, clients set the value of the PidTagSenderIdStatus property ([MS-OXPROPS] section 2.1004).
MIME writers SHOULD<53> copy the value of the PidTagSenderIdStatus property, which is a PtypInteger32 ([MS-OXCDATA] section 2.11.1), to the X-MS-Exchange-Organization-SenderIdResult header, formatting it as a string, without separator characters.