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Date:      Sun, 22 Nov 1998 15:13:03 -0500 (EST)
From:      "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com>
To:        brian@briang.org
Cc:        freebsd-questions@FreeBSD.ORG (FreeBSD Questions)
Subject:   Re: DNS MX
Message-ID:  <199811222013.PAA14482@cc942873-a.ewndsr1.nj.home.com>
In-Reply-To: <008801be15f4$6b85ffe0$2900a8c0@desktop.briang.org> from Brian Gallucci at "Nov 22, 98 00:45:13 am"

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Brian Gallucci wrote,
> I have Pri & Sec DNS both running Sendmail-8.9.1,
> My Domain files look like this..
> ->
> briang.org.     IN  MX     10  dns1.briang.org.
> briang.org.     IN  MX     20  dns2.briang.org.
> ->
> But when I shut down Sendmail on the Pri DNS and
> try to send a email message to brian@briang.org from hotmail
> I get a error telling me that this is a unknow user, 

Check the headers on the returned mail. If it really is an 'unknown
user' message returned, the mail /did/ get to the dns2, but that
machine does not have a user or alias for 'brian.' In that case, it
sounds like a problem with NIS or whatever you are using to define
users across platforms, and not really a mail or DNS issue. If you
really shut down dns1, it wouldn't happen to be the NIS master too? :)

If you have more troubles with this, please post selected pieces of
the mail headers. It would really help in diagnosing this problem.

> but if 
> I start sendmail on the PRI DNS and try again it works fine.
> 
> I have tested the Sec DNS I can send a email to root@dns2.briang.org
> and it works fine.. Hmmm

These would be consistent with the idea its a problem identifying the
user 'brian.'
-- 
Crist J. Clark                           cjclark@home.com

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