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Date:      Tue, 7 Jul 1998 09:34:56 -0500
From:      "Alex Weeks" <aweeks@ilinkusa.net>
To:        "Numard (Norberto Meijome)" <numard@smartmedia.com.ar>
Cc:        <questions@FreeBSD.ORG>
Subject:   Re: Secondary DNS and MX
Message-ID:  <002c01bda9b4$6a104320$1a4bdacd@puttputt.ilinkusa.net>

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Thanks for the help Norberto Meijome:

However, I think you misunderstood the question.  Let me rephrase it.

The mail server at ahoc.net can receive mail for the domain.  It's been
doing this for some time.  In other words, as you put it, sendmail.cw has
the domain listed in it.  In truth I am not sure he's using a sendmail.cw
file, but that's not important.

The problem is that mail from our mail server (aqua.intellilink.net) doesn't
ever reach his mail server (ns.ahoc.net).  The mail appears to fail locally
because our local mail host believes the mx record points back to
aqua.intellilink.net .

I believe putting his domain in our sendmail.cw file would be incorrect
because our users (assuming we have duplicate usernames) would receive
ahoc.net mail.  Not the desired effect.  Although I don't think this is what
you meant.

But I think your answer helps state the problem.  Our mail server thinks the
ahoc.net domain is local and tries to deliver the mail locally.  It bombs
when it doesn't see ahoc.net as a valid domain to receive mail for.  What it
should be doing is sending the mail to ns.ahoc.net for processing like the
MX record tells it to (or should tell it to).

Alex Weeks
aweeks@ilinkusa.net


-----Original Message-----
From: Numard (Norberto Meijome) <numard@smartmedia.com.ar>
To: Alex Weeks <aweeks@ilinkusa.net>
Date: Monday, July 06, 1998 10:32 PM
Subject: Re: Secondary DNS and MX


>Add the domain name to the sendmail.cw and rehup sendmail.
>it's a sendmail bad - set up stuff, nothing to do w/ DNS/MX
>
>
>Alex Weeks wrote:
>>
>> I have started to do secondary DNS for a customer.  Secondary DNS is
working
>> fine, however, we can no longer send mail from us to him.  All mail is
>> returned saying MX entry points back to our mail server.
>>
>> As far as I can tell there is no obvious reason for this.  Dig on our
server
>> shows the mx entry correctly (his mail server) and dig on his shows the
>> same.  nslookup also looks good on both machines.
>>
>> Our nameserver and mail server are the same machine.  His nameserver and
>> mailserver are the same as well.
>>
>> We're both running FreeBSD 2.2.5
>>
>> Anyone got any idea?
>>
>
>
>--
>Norberto Meijome (a) Numard, (a) Beto | ICQ # 15032073
> * Contrary to popular belief, Unix is user friendly. It just happens to
>be very selective about who it decides to make friends with.
>


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