<messaging> (Or "snailmail", "smail" from "US Mail" via "USnail"; "paper
mail"). Bits of dead tree sent via the postal service as opposed to electronic
mail. One's postal address is, correspondingly, a "snail (mail) address". There
have even been parody USnail posters and stamps made.
The variant "paper-net" is a hackish way of referring to the postal service,
comparing it to a very slow, low-reliability network. Sig blocks sometimes
include a "Paper-Net:" header just before the sender's postal address; common
variants of this are "Papernet" and "P-Net". Note that the standard netiquette
guidelines discourage this practice as a waste of bandwidth, since netters are
quite unlikely to casually use postal addresses and if they really wanted your
snail mail address they could always ask for it by e-mail.
Compare voice-net, sneakernet, P-mail.
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