 FidoNet was historically designed to use modem-based dial-up (POTS) access between bulletin board systems, and much of its policy and structure reflected this.The FidoNet system officially referred only to the transfer of "Netmail"—the individual private messages between people using bulletin boards—including the protocols and standards with which to support it.A netmail message would contain the name of the person sending, the name of the intended recipient, and the respective FidoNet addresses of each.