Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!rutgers!mcnc!xanth!kyle
From: kyle@xanth.UUCP (Kyle Jones)
Newsgroups: news.admin
Subject: host.UUCP sans map entry
Message-ID: <2230@xanth.UUCP>
Date: Sat, 22-Aug-87 22:42:10 EDT
Article-I.D.: xanth.2230
Posted: Sat Aug 22 22:42:10 1987
Date-Received: Sun, 23-Aug-87 14:50:38 EDT
Lines: 6

There are articles being posted with From: headers of the form
  From: user@host.UUCP
but the host is not mentioned anywhere in the maps.

To the news administrators of sites that do this I ask: How are we
supposed to send e-mail responses to these articles?