| 摘要 |
The proposed invention solves the problem of spoofing the origin to create e-mail spam, virus distribution, and other abuse of the electronic mail. In particular, it solves a notoriously dangerous problem of distributing computer viruses via e-mail allegedly sent from friends, colleagues, and well-respected organizations. The proposed invention defines a comprehensive set of mechanisms and apparatus to reasonably ensure that an e-mail message-when received by an e-mail gateway, e-mail relay server, or the destination e-mail server-has originated at the location and sent by a person (or a program) specified in its "From:" field.
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