Path: utzoo!utgpu!attcan!uunet!lll-winken!lll-tis!ames!mailrus!tut.cis.ohio-state.edu!triceratops.cis.ohio-state.edu!karl
From: karl@triceratops.cis.ohio-state.edu (Karl Kleinpaste)
Newsgroups: comp.mail.uucp
Subject: Re: smail wants you to register a domain
Message-ID: <21235@tut.cis.ohio-state.edu>
Date: 2 Sep 88 14:01:11 GMT
References: <70@volition.dec.com> <71@volition.dec.com> <935@cbnews.ATT.COM> <44401@beno.seismo.CSS.GOV> <946@cbnews.ATT.COM> <355@bungia.Bungia.MN.ORG> <998@cbnews.ATT.COM> <117@com2serv.C2S.MN.ORG> <5372@killer.DALLAS.TX.US> <370@bungia.Bungia.MN.ORG>
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In-reply-to: ahby@bungia.bungia.mn.org's message of 1 Sep 88 13:35:31 GMT

ahby@bungia.bungia.mn.org writes:
   It MAY result in greater mail reliability, but certainly not greater
   performance.  I maintain that it will reduce reliability, because
   if I add a new node to my network and send mail to you from it before
   the MX records are updated you cannot respond to me.

If your new node is named SOME-NEW-HOST.FOO.COM, and the nameserver
providing service for FOO.COM contains an MX record such as you had as
an example previously, e.g.,

*.FOO.COM	IN	MX	10 RELAY.CS.NET

then it will work just fine, actually.  You can add a node, boot it,
and 30 seconds later send out mail from it which is immediately
perfectly reply-able by anyone anywhere.

--Karl