To avoid a decrease in transmission efficiency of an electronic mail system, even if transmitting an electronic mail with a moving image attached thereto.

The communication terminal with camera is provided with a mail processing section that has the function of transmitting an electronic mail, a camera processing section that has the function of photographing a moving picture, a memory that stores a moving image mail, a communication time setting section that sets a communication time, a moving image conversion section that automatically converts a moving picture to be attached according to the communication time, a conversion method selection section that selects a conversion method used by the moving picture conversion section, and a main processing section that controls each section of the communication terminal.