Data communication apparatus and internet facsimile apparatus

摘要

An internet facsimile apparatus and data communication apparatus that can directly exchange capability information of sender and receiver sides and maximize the capability of both sides is provided, by obtaining an IP address of a destination terminal based on the input e-mail address, and by directly transmitting the e-mail to the destination terminal using the IP address of the destination terminal without using mail servers. Also, using the IP address of the destination terminal, a connection is established with the destination terminal to execute a mail protocol that can exchange capability information. After obtaining the capability information of the destination terminal, data format of the sending data is converted to match the capability information of the destination terminal, and the sending data is transmitted by e-mail.