Patent ID: 7054908

Claim:
A communication terminal device having mail acquisition unit adapted to accommodate a communication line connected to a mail server that provides an E-mail service, and acquiring E-mail from the mail server, and storage unit adapted to store E-mail data acquired by the acquisition unit, said communication terminal device comprising: status-notification detecting unit adapted to detect a mail-status notification signal transmitted from the mail server; incoming-call determination unit adapted to determine whether or not there is incoming mail by analyzing the mail-status notification signal detected by said status-notification detecting unit; storage possible/impossible determination unit adapted to refer to available capacity of the storage unit if said incoming-mail determination unit has determined that there is incoming mail, thereby determining whether or not E-mail data relating to the incoming mail can be stored; and mail receiving unit adapted to exercise control in such a manner that acquisition of E-mail is performed by the mail acquisition unit if said storage possible/impossible determination unit has determined that the E-mail data relating to the incoming mail can be stored, and in such a manner that no acquisition of E-mail is performed by the mail acquisition unit if said storage possible/impossible determination unit has determined that the E-mail data relating to the incoming mail cannot be stored.