| 摘要 |
A method of anti-spam is to set an optional trustcode, or a trustlist, or at least a trustweb based on online mail delivery at a recipient's e-mail address. A mail sender is compelled at the first time to deliver a mail by way of: taking the way of "Visiting trustweb and sending online", or enclosing the recipient's trustcode in the mail and sending in another way other than the mentioned. After the sender's e-mail address has been stored automatically in the recipient's trustlist, the sender may send mails to the same recipient in whatever the ways feasible.
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