2.2.1.12 RopReadPerUserInformation ROP
The RopReadPerUserInformation ROP ([MS-OXCROPS] section 2.2.3.12) is used to obtain a set of change numbers, each of which is associated with a message that the user has read in a specific public folder.
When this ROP is issued against a private mailbox logon, cached data for the public folder is retrieved. When this ROP is issued against a public folders logon, the current per-user read/unread data for the public folder is retrieved. The client can use this ROP in conjunction with the RopWritePerUserInformation ROP, as specified in section 2.2.1.13, to synchronize per-user read/unread data for a public folder.
The complete syntax of the ROP request and response buffers for this ROP is specified in [MS-OXCROPS]. This section specifies the syntax and semantics of various fields that are not fully specified in [MS-OXCROPS].