Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site hou3c.UUCP
Path: utzoo!watmath!clyde!burl!hou3c!EE.GDS%MIT-OZ@MIT-MC.ARPA
From: EE.GDS%MIT-OZ@MIT-MC.ARPA (Greg Skinner)
Newsgroups: net.mail.msggroup
Subject: redistribution lists
Message-ID: <595@hou3c.UUCP>
Date: Sun, 27-May-84 16:14:14 EDT
Article-I.D.: hou3c.595
Posted: Sun May 27 16:14:14 1984
Date-Received: Fri, 1-Jun-84 08:35:56 EDT
Sender: ka@hou3c.UUCP (Kenneth Almquist)
Lines: 22
To: msgroup@BRL.ARPA

I often get upset when I send a message to a list such as human-nets,
which occasionally has out-of-date addresses whose host machines may
have crashed.  I too, get messages such as ...

foo at AMES-TSS:  Message undeliverable for x days, will try for
another y days

In USENET, the user is able to "cancel" an article he posts.  The
cancellation is first done locally at his own site (the article is
deleted from his local filesystem), then a control message is sent to
all other machines to whom the poster's site talks to, instructing
them to delete their received copy from their filesystems.  And so on
and so forth ...

It would be a useful feature if at the redistribution point, a
facility was enabled so that users could send a cancellation message
instructing the host to dequeue the currently undeliverable messages.

Greg Skinner
ARPA: gds%mit-eddie@XX
UUCP: ...decvax!genrad!mit-eddie!gds
-------