Date   : Fri, 03 Dec 1982 10:57:31 EST (Fri)
From   : Ben Goldfarb <goldfarb.ucf-cs@Udel-Relay>
Subject: Re: How to reach John Beal

What you have there is a Usenet (uucp) address.  Your response should
go to the Berkeley mail gateway (Ucb-C70).  The uucp path is used
instead of a user name.  Thus 'decvax!harpo!eagle!wheps!alc @ Ucb-C70'
is a valid address.  BTW, the '!' if you haven't already figured it
out is used to separate path components; uucp is primitive and the
user must specify the appropriate path himself.