Abstract: A facsimile apparatus capable of automatically preventing image data transmitted from a specific sender is provided. When a polling time comes which is set to access a mail server in order to fetch an e-mail, a CPU of the facsimile apparatus accesses the mail server. After detecting the connection to the mail server, the CPU receives an e-mail from the mail server. The CPU then analyzes the character codes contained at the position of the sender name in the e-mail. If it is determined that a predetermined character code is contained, the CPU performs the reverse format conversion of the image data attached to the e-mail, expands the image data, and outputs an instruction to print the image data.