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Path: utzoo!linus!philabs!cmcl2!seismo!umcp-cs!chris
From: chris@umcp-cs.UUCP (Chris Torek)
Newsgroups: net.mail
Subject: Re: sendmail
Message-ID: <8127@umcp-cs.UUCP>
Date: Sun, 19-Aug-84 12:15:17 EDT
Article-I.D.: umcp-cs.8127
Posted: Sun Aug 19 12:15:17 1984
Date-Received: Tue, 21-Aug-84 05:23:56 EDT
References: <250@sunybcs.UUCP>
Organization: U of Maryland, Computer Science Dept., College Park, MD
Lines: 22

>If you mail to csnet-relay without specifying the domain
>eg. address.arpa@csnet-relay or address.csnet@csnet-relay,
>does the relay know which net to send the address to?

Yes.  CSNet-Relay is running MMDF, which does address mapping by table
lookup (essentially).  If you specify a domain name, it is supposed to
listen to that (though I have my doubts as to whether that code is
*really* working), but if you don't, it uses its best guess.  This
happens to work for all CSNet and ARPAnet hosts.

(Imagine a bag for each domain.  The little guy inside the machine will
reach into the ARPA bag for *.arpa, or the CSNet bag for *.csnet;
otherwise, he'll rummage through all of them and use what comes up
first.  As long as host names on different nets are all different, you
don't need the domain qualifiers.)

(By the way, please don't mail food to the little guy; the crumbs
keep collecting in the bottom of the Vax.)
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci (301) 454-7690
UUCP:	{seismo,allegra,brl-bmd}!umcp-cs!chris
CSNet:	chris@umcp-cs		ARPA:	chris@maryland