2.784 PidTagMemberId
Canonical name: PidTagMemberId
Description: Contains a unique identifier that the messaging server generates for each user.
Property ID: 0x6671
Data type: PtypInteger64, 0x0014
Area: Access Control Properties
Defining reference: [MS-OXCPERM] section 2.2.5
Alternate names: PR_MEMBER_ID, ptagMemberId