This may come as news to the MTV generation, but most of the peoples of this world are without any Internet access whatsoever. (Not to mention electricity, running water, malaria prevention, or microwave popcorn.)

This section describes how to use Daniel J. Bernstein's serialmail utilities together with qmail, to provide email services for poorly connected --perhaps we should say "bandwidth challenged"-- networks.

We call this "qmail unplugged".