| 摘要 |
Character strings for selecting received emails are registered in an email server apparatus (600). When receiving an email addressed to the user of a mobile phone (700), the email server apparatus (600) uses the character strings to select the email. When it is during a trial period, the email server apparatus (600) delivers the received email with a selection result addressed thereto. When it is after the trial period, the email server apparatus (600) retains, as a history, information about the received email, and periodically transmits the history to the mobile phone (700). <IMAGE>
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