An information processing system according to an embodiment of the present invention includes a communication terminal, and a plurality of identifier information transmitting apparatuses. The identifier information transmitting apparatuses are installed in a plurality of respective locations, and each of the identifier information transmitting apparatuses transmits a different piece of identifier information. The communication terminal receives the identifier information transmitted from the identifier information transmitting apparatuses, generates an email address including the identifier information, and acquires an email that is addressed to the generated email address.