To exchange each machine reception capacity by an electronic mail by providing a transmission control means for storing reception capacity information in the electronic mail and transmitting the mail.

In this facsimile machine 1, at the time of executing facsimile communication by using internet, a reception function (reception capacity) is stored in the prescribed area of an electronic mail to exchange each function. The machine 1 receives a variety of information such as a From address and picture information through an NIC 14 or a PDU 15 upon receiving the electronic mail, and the NIC 14 or the PDU 15 obtains the From address and the contents (reception capacity) of a DIS to report them to a learning part 17 through a communication control part 12. The part 17 retrieves each destination table of an internal memory, based on the From address, and when destination information on an opposite party having the same mail address as the reported From address is registered, the DIS information is stored in the learning information area of the mail address and the mark therefor.