Patent ID: 7596601

Claim:
A mobile communication terminal, comprising: mail receiving means for receiving mail from a mail server; detection conditions acquisition means for acquiring detection conditions data including a letter string from a detection conditions distribution server and storing the detection condition data in a detection conditions storage means; detection means for performing detection processing for extracting the mail received by the mail receiving means when a condition, in which the mail includes a letter string conforming to the letter string included in the detection condition data stored in the detection conditions storage means, is satisfied; a mail storage unit configured to store information indicating whether the mail has been extracted by the detection means and detection result information indicating a category of content of the mail that has been extracted; and detected mail notification processing means for sending information that the mail has been extracted by the detection means and the detection result information indicating the category of content of the mail that has been extracted to a detected mail notification receiving server, wherein the detection conditions acquisition means sends category information input at a user interface of the mobile communication terminal to the detection conditions distribution server, and acquires detection condition data including a letter string relevant to the category indicated by the category information sent by the detection conditions distribution server.