| 摘要 |
PROBLEM TO BE SOLVED: To sharply improve overall economic efficiency, operability and rapidity by accurately managing whether a mail is reached from a transmitting side post office to a receiving side post office or not to secure the reliability of mail service and automating the management. SOLUTION: First management data for specifying image data Dv from the transmitting side post office Mt and second management data for specifying an enveloped mail Po prepared by the receiving side post office Mr are transmitted to a management center Sc. At the time of receiving the 2nd management data coincide with the 1st management data within previous set management time after receiving the 1st management data, the center Sc ends management for the 1st management data, and when the 2nd management data are not received, executes abnormality processing. |
