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Date:      Thu, 23 Jul 1998 12:24:55 +1000
From:      Greg Ryan <greg@safetyweb.com.au>
To:        Leif Neland <root@internet.dk>
Cc:        isp@FreeBSD.ORG
Subject:   Re: MX CNAME
Message-ID:  <3.0.5.32.19980723122455.03b9a100@bach>
In-Reply-To: <Pine.BSF.4.02.9807230335370.13870-100000@darla.swimsuit.in ternet.dk>

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At 03:36 23/07/98 +0200, you wrote:
>
>Why does named complain when a MX-record points to a CNAME?
>
>Sendmail doesn't seem to have a problem with it.

because its contrary to the rfc's. Its also a good idea to make sure its an
A record, and you have reverse DNS configured, as many sites wont accept
mail if the hostname doesnt resolve forwards and backwards.

from the sendmail FAQ:

3.Configure MX records for your domain (Note: CNAME records can not be
used; see §5.2.2 of RFC 1123 for details.) MX records are explained in the
sendmail book, section 15.3, and how to configure them is explained in
section 21.3. 

cheers from downunder
greg


--
SafetyWeb Internet Solutions Pty Ltd
Suite 1101, Capital Tower
Canberra City ACT 2601
Australia

+61 02 6257 9901 Telephone
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greg@safetyweb.com.au
http://www.safetyweb.com.au

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