This repository is the "official" final resting place of the original
popclient source code written by Carl Harris around 1993. popclient
is a very small and simple POP3/POP2 email client that was developed
in a time before POP and subsequently IMAP became the de-facto standards
for e-mail retrieval on today's Internet.
It is preserved here only for the sake of posterity, and almost certainly
shouldn't be used today. You might have read about popclient
in Eric S Raymond's The Cathedral and the Bazaar or in Nick Christenson's
Sendmail Performance Tuning and perhaps have been curious to see (or even try to
build) the source. You might also be be interested in reviewing the original man page.
Around 1996 popclient was radically transformed by Eric Raymond into
the fetchmail utility. In 2004, Rob Funk and others took responsibility for the ongoing maintenance and of
fetchmail, and as of 2013 it was still being actively maintained at
www.fetchmail.info. If you're looking for
command-line interface for POP, IMAP, etc, Fetchmail is for you.