Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10 3/23/84; site cbosgd.UUCP
Path: utzoo!linus!security!genrad!decvax!harpo!ulysses!cbosgd!mark
From: mark@cbosgd.UUCP (Mark Horton)
Newsgroups: net.news
Subject: Re: Duplicate articles and munging of message IDs
Message-ID: <1247@cbosgd.UUCP>
Date: Mon, 9-Apr-84 21:41:48 EST
Article-I.D.: cbosgd.1247
Posted: Mon Apr  9 21:41:48 1984
Date-Received: Wed, 11-Apr-84 01:43:26 EST
References: <320@oliveb.UUCP>
Organization: AT&T Bell Laboratories, Columbus
Lines: 15

The Usenet standard (RFC850) specifies that the Message-ID is to be used.
The Article-ID is just there for upward compatibility for 2.9, it's
ignored by 2.10.  What's happening is that some old site (running B 2.6
or earlier or A news) is stripping out Message-ID, and the next 2.10 site
in the path guesses that .UUCP is the domain when it puts it back in.  The
guess is usually right, but in cases like this it's wrong.  Some site in
this path is the culprit:

    Path: oliveb!hplabs!hao!seismo!harpo!decvax!genrad!grkermit!masscomp!clyde!floyd!cmcl2!rna!n44a!wjh12!bbncca!sdyer

I suspect the problem is at rna or n44a, and can best be fixed by making
sure there are no loops in the network that go through these sites.  Or
else getting them to upgrade.

	Mark