An electric mail processing apparatus includes a communication control unit for receiving a mail from the mail server; a main storage unit for storing the mail; a determining unit for determining process contents of the mail; a process performing unit for performing the process contents on the mail; and a mail deletion instructing unit for sending a deletion instruction to the mail server to delete the mail. The determining unit determines whether a first received mail is a subsequently received mail. The communication control unit deletes the subsequently received mail when the determining unit determines that the first received mail is the subsequently received mail. The communication control unit controls the mail deletion instructing unit to send the deletion instruction to the mail server to delete the subsequently received mail.