Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sdd.hp.com!hplabs!hpda!hpcupt1!hprnd!hpprdea!raguay17
From: raguay17@hpprdea.HP.COM (Radames Aguayo)
Newsgroups: comp.mail.elm
Subject: Re: Getting acknowledge of receipt
Message-ID: <1300008@hpprdea.HP.COM>
Date: 27 Sep 90 13:16:17 GMT
References: <1300004@hpprdea.HP.COM>
Organization: Puerto Rico Manufacturing Operation
Lines: 21

Ok, for those of you who asked for more info, here is one of the answers I got
by mail. (Reprinted without permission)

>
>I probably will not be alone in answering that adding header
>
>	Return-Receipt-To: raguay17@hpprdea.hp.com
>
>is a non-standard way to receive a delivery confirmation from mail systems
>which are derived from the Berkeley sendmail, or which implemented this
>non-standard feature because people found it useful in Berkeley's system.
>
>A rather strange-looking confirmation of delivery will be mailed back to the
>named address when your message is placed in the destination user's mailbox,
>if the destination mailer supports this.  If the message goes outside the
>Internet, the gateway to the foreign mail system probably does not honor the
>header field.  In other words, try it, but if you don't get a confirmation
>back then don't assume the message never made it.
>
>^todd		"postmaster of disaster"
>