Path: utzoo!utgpu!watserv1!watmath!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!samsung!uunet!mcsun!ukc!acorn!unipalm!leo
From: leo@unipalm.uucp (E.J. Leoni-Smith)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Certified SMTP mail
Message-ID: <1991Feb14.145713.5635@unipalm.uucp>
Date: 14 Feb 91 14:57:13 GMT
References: <9102110842.AA02908@holmenkollen.ifi.uio.no> <BZS.91Feb12162042@world.std.com> <ariel.666407312@tiger1>
Organization: Unipalm Ltd., Cambridge, England
Lines: 12


 have a simple way of sending 'registered' mail. I include in it a line

If you recieve this, will you tell me?

This enables me to determine that not only has the message got there,
but also that a human the other end has actually understood it, and was 
sufficiently civilised to inform me of the fact.

A very powerful protocol indeed!

:-)