188.8.131.52 PidTagReadReceiptEntryId Property
Type: PtypBinary ([MS-OXCDATA] section 2.11.1)
The PidTagReadReceiptEntryId property ([MS-OXPROPS] section 2.870) contains an address bookEntryID, as specified in [MS-OXCDATA] section 184.108.40.206, that represents the user to whom a read receipt is directed. This property is only used and validated if the PidTagReadReceiptRequested property (section 220.127.116.11) is set to 0x01. This property can be absent, in which case, the value of the PidTagReportEntryId property (section 18.104.22.168) is used as an alternative value. If neither property is present, the value of the PidTagSenderEntryId property (section 22.214.171.124) is used to identify the user who receives the read receipt.