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	Tue, 6 May 1997 10:30:50 +1000 (EST)
Date: Tue, 6 May 1997 10:30:50 +1000 (EST)
From: Andrew <andrew@key.net.au>
To: "Jordyn A. Buchanan" <jordyn@bestweb.net>
cc: questions@freebsd.org
Subject: Re: DNS strangeness
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On Mon, 5 May 1997, Jordyn A. Buchanan wrote:

> We're having a problem sending mail to a particular domain (pcnet-inc.com)
> because sendmail is telling us that their mail exchanger is not a known
> host.  However, note the following results on the machine that's trying to

<snip>

> Non-authoritative answer:
> pcnet-inc.com   preference = 0, mail exchanger = viewtek_comm1.pcnet-inc.com

AFAIK '_' is an unallowable character in a host name...perhaps that is
your problem. You could always try to send mail to <whoever>@[<IP
address>] and suggest they change their name...

Andrew