Method and code for authenticating electronic messages

摘要: In a method for authenticating an electronic message (16) to thereby blocking unsolicited messages ('SPAM'), first server (22) generates unique identifier (18) and associated validation record upon sender (12) as one from whom given recipient has agreed receive (Fig. 1). The is included in the (16), sent (14). retrieves thereafter requests of (20) either server, or second receiving at least with server. After recipient, validates by checking existence record, returns indication (20). then accepted rejected and, perhaps, routed folder subsequent processing, based on