COMMUNICATION APPARATUS THAT CARRIES OUT COMMUNICATION WITH EXTERNAL APPARATUS, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM

摘要

A communication apparatus which is capable of ascertaining whether or not it is possible to transmit image data to a transmission destination irrespective of functions it has, and notifying a user of the ascertainment result, thus enhancing convenience. A storage unit stores an address book including a plurality of addresses indicative of transmission destinations of data. A first receiving unit receives a first message from an external device. A determination unit determines whether an address of the external device that has transmitted the received first message is included in the address book. A display unit displays the address of the external device in a first display form which is different from a display form of other addresses in a case where the determination unit determines that the address of the external device is included in the address book and when the address book is displayed.