1. An image distribution system via e-mail comprising: a first user terminal; a server serving to receive a message consisting of an ideogram string input from said first user terminal and to transmit the received message together with an image attached thereto to said first user terminal; and an internetwork via which said first user terminal and said server are connected to each other, wherein said server comprises: storage means adapted to store an ideogram string element or elements including characters, symbols, graphics or combination thereof respectively corresponding to an expression, attitude or posture representing an emotion or situation put into a message inputted by a user of said first user terminal, said storage means being adapted to store images corresponding to said ideogram string element or elements, recognizing means adapted to recognize the ideogram string element or elements from the message inputted by the user of said first user terminal, and image distribution means adapted to pick up the image corresponding to the ideogram string element or elements having been recognized by said recognizing means and to distribute the corresponding image to said first user terminal via the internetwork.