Portable terminal suitable for displaying related electronic mail, method of displaying electronic mail and program for displaying electronic mail

摘要

To readily enable display of circumstances of an electronic mail displayed by a user, by automatically extracting and arranging electronic mails related to the electronic mail to be displayed on a portable terminal. There are included an operation unit 12 on which the user performs an entry operation, a display unit 11, a radio transmitting and receiving unit 13 for making a call to and exchanging information with an outside by wireless communication, a storage unit 15 having a mail region 21 for storing transmitted and received electronic mails, a mail processing unit 22 for performing processing for external transmission or reception of an electronic mail through the radio transmitting and receiving unit 13, display of the transmitted or received mail on the display unit 11, and storage of the transmitted or received mail in the mail region 21, and a relating unit 23 for extracting one or more related electronic mails from the mail region 21 based on a relating condition for a specified electronic mail being displayed on the display unit 11, specified by an operation of the user, and then displaying the one or more related mails.