Patent ID: 8862669

Claim:
A communication device comprising: an address book for storing display names, group names, and e-mail addresses corresponding to the display names; and a controller for: extracting an e-mail address from a received e-mail message, retrieving, from the address book, a display name corresponding to the extracted e-mail address comparing the retrieved display name to a sender name of the e-mail message, determining whether a difference exists between the sender name of the received e-mail message and a display name in the address book corresponding to the extracted e-mail address, outputting, when the sender name of the received e-mail message differs from the display name in the address book corresponding to the extracted e-mail address, the retrieved display name for display as the sender name of the received e-mail message, based on the display name in the address book, retrieving a group name corresponding to the extracted e-mail address, and adding the retrieved group name to the received e-mail message, wherein outputting the retrieved display name is based on retrieving from the address book the display name corresponding to the extracted e-mail address, and the retrieved group name is displayed with the retrieved display name.