The Exchange Server User Monitor (ExMon) RPC data indicates that the user '{3}' had a long-running MAPI bulk operation of ...

The Exchange Server User Monitor (ExMon) RPC data indicates that the user '{3}' had a long-running MAPI bulk operation of type '{4}'. The longest-running bulk operation issued by this user took {0} seconds. Typically, bulk operations are expensive. They do not always indicate a problem.