snail mailsnail mail
Informal mail or mail delivery by means of a traditional postal service rather than by fax, e-mail, etc.: a humorous or dismissive use
Origin of snail mailin allusion to the slowness of the snail
Mail delivered by a postal system, as distinct from electronic mail.
snail mail - Computer Definition
Regular posted mail (for which postage stamps are used).
Mail sent via a country's government-regulated postal system.