An image transmission apparatus is high in convenience, operability and reliability when newly registering a transmission destination to an address book. The apparatus obtains a list of destination names corresponding to recipients who have registered a recipient setting designating a transmission method; receives from a user a selection of whether to follow the recipient setting; receives from the user (a) if a selection to not follow the recipient setting has been received, a destination name and a transmission method to correspond thereto, and (b) if a selection to follow the recipient setting has been received, a selection of a destination name from the list; in the case of (a), registers the destination name and the transmission method in association as a candidate for the destination; and in the case of (b), registers the selected destination name with an indication that the recipient setting is to be followed, as a candidate.