Printing system and printing device

A printing system comprising:

• a terminal that, by transmitting an electronic mail including an electronic file, makes a request to print the electronic file;
• and
• a printing device that prints an image based on an electronic file included in an electronic mail, the terminal and the printing device being connected to each other via a network,
• the terminal including
• a search-request transmitting unit configured to, in a case of performing printing of an electronic file, transmit a search request to search for a printing device to the network,
• a search-response receiving unit configured to receive an electronic-mail address and an authentication token of a printing device as a response to the search request transmitted by the search-request transmitting unit, and
• a mail transmitting unit configured to transmit an electronic mail including the authentication token, which has been received by the search-response receiving unit, and the electronic file to the electronic-mail address, which has been received by the search-response receiving unit,
• the printing device including
• a holding unit configured to hold an authentication token,
• a search-request receiving unit configured to receive a search request to search for a printing device from the network,
• a search-response transmitting unit configured to transmit, in a case where the search request has been received by the search-request receiving unit, to a device that is a transmission source of the search request, a search response including the authentication token which is held by the holding unit and an electronic-mail address that is assigned to the printing device,
• a mail receiving unit configured to receive an electronic mail including an electronic file, and
• a printing unit configured to, in a case where the authentication token that the printing device has issued is included in the electronic mail received by the mail receiving unit, perform printing of the electronic file included in the received electronic mail.