A communication device includes an acceptance section, a mail data generating section, and a transmission section. The acceptance section is configured to accept a plurality of destination addresses and a mail text to be sent to the plurality of destination addresses. The mail data generating section is configured to generate, for every one of the plurality of destination addresses, mail data that contains the mail text, destination information indicating the one of the plurality of destination addresses as a destination, and destination address list information which indicates a list of the plurality of destination addresses arranged in order and in which the one destination address is placed higher in order than when accepted by the acceptance section. The transmission section is configured to send the mail data generated by the mail data generating section.