| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for deleting unwished e-mail before it causes damages, by constructing a device and a e-mail server so that unwished mail is deleted before it causes damages. SOLUTION: An e-mail server (21) receives the first e-mail sent to receivers (27-31), and automatically evaluates the first e-mail by at least one criteria which was set beforehand, and before handling the first call to receivers' calculations (22-26), if any unwished e-mail is sent, based on the first e-mail (300) evaluation result, the second e-mail (400, 500) containing the indication is made automatically and sent to the receivers' calculations.
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