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Path: utzoo!watmath!clyde!burl!hou3c!steve@ucl-cs.arpa
From: steve@ucl-cs.arpa (Steve Kille)
Newsgroups: net.mail.headers
Subject: Re:  That ferocious ack
Message-ID: <425@hou3c.UUCP>
Date: Wed, 21-Mar-84 13:09:07 EST
Article-I.D.: hou3c.425
Posted: Wed Mar 21 13:09:07 1984
Date-Received: Sun, 25-Mar-84 09:37:33 EST
Sender: ka@hou3c.UUCP (Kenneth Almquist)
Lines: 9
To: "Benson I. Margulies" <Margulies@cisl-service-multics.arpa>
Cc: header-people@mit-mc.arpa

For its sins, "Acknowledge-To:" is specified by the JNT Mail protocol
as generating an end to end acknowlegement.  There are dire
warnings about its use with distribution lists.   The element is
intended for human rather than machine processing (i.e. to give
confidence as to a messages arrival).  Many UK sites would send
an ack if such a field is in the original message.  UCL will send
one ONLY if the message arrives by the JNT Mail Protocol.

Steve