MESSAGE DELIVERY SYSTEM, AND MESSAGE TRANSFER DEVICE, METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To reduce the storage region of a white list, or to increase the number of registration of the white list. SOLUTION: The hash values of a reception permission address or a reception permission domain name are stored so as to be associated with a user in a compression white list table 132, and a filter processing part 112 calculates a hash value from the transmission address of incoming mail and the domain name of the transmission origin address, and when the hash value matched with the calculated hash value is present in a compression white list table 132, permits the transfer of mail. COPYRIGHT: (C)2008,JPO&INPIT