3.1.4.4 Refreshing the Recipient Information Cache

A client retrieves a minimal set of Contact class data from the server by issuing a Sync command request ([MS-ASCMD] section 2.2.1.21) against Folder object type 19, which is the recipient information cache. The recipient information cache is not supported by protocol versions 2.5, 12.0, and 12.1.

For more details about the use of this Folder object type in a Sync command request, see [MS-ASCMD] section 2.2.3.30.6.