There's nothing special about the post office on the second floor of a shopping complex on Jalan Cempaka Putih in Central Jakarta—except that it's a private mail service operating under authority of PT Pos Indonesia. The Mitra Cempaka post office, a pilot project of the government postal service, occupies a 35 x 9 meter space partitioned into several sections, including a room for the postmaster and counters for the different services comm