Path: utzoo!attcan!uunet!aplcen!samsung!xylogics!merk!alliant!linus!think!barmar
From: barmar@think.com (Barry Margolin)
Newsgroups: comp.protocols.tcp-ip.domains
Subject: Re: Special way to query DNS?
Keywords: DNS Query
Message-ID: <40854@think.Think.COM>
Date: 19 Jul 90 21:45:52 GMT
References: <4940@uafhp.uark.edu>
Sender: news@Think.COM
Organization: Thinking Machines Corporation, Cambridge MA, USA
Lines: 13

In article <4940@uafhp.uark.edu> netnews@uafhp.uark.edu (Netnews) writes:
>   Is there any way to query the Domain Name Server(s) to ask for ALL the 
>MX records pointing to a certain host?

No.  You would have to query every domain server in the world in order to
do this, since there's no inherent restriction on who can have MX records
pointing to a host.  There's nothing stopping a domain in Australia from
pointing an MX record to my workstation in Massachusetts.
--
Barry Margolin, Thinking Machines Corp.

barmar@think.com
{uunet,harvard}!think!barmar