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Date:      Thu, 23 Jul 1998 15:55:05 +0800 (CST)
From:      Bo Fussing <bmf@gateway.net.hk>
To:        domreg <root@internet.dk>
Cc:        "Jonathan M. Bresler" <jmb@FreeBSD.ORG>, isp@FreeBSD.ORG
Subject:   Re: MX CNAME
Message-ID:  <Pine.LNX.3.96.980723155037.32253O-100000@gate.gateway.net.hk>
In-Reply-To: <Pine.LNX.3.93.980723083520.18443B-100000@zet.internet.dk>

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On Thu, 23 Jul 1998, domreg wrote:

> 
> "Because it is wrong" doesn't work with my kids either.
> 
> What is the problem? Does it break anything? 
> 
> Should I go change all the ocurrences in all the domains we host?
> 
> Or should I give mailhost the same ip-adress as the realhost instead of
> giving it a cname to realhost?

Leif,

Most mailers will look for the hosts canonical domain name when delivering
mail. If you choose to use a CNAME for your MX records there is no
guarantee that you will get any mail. I think that is incentive enough to
have a look through your DNS entries and boot out any CNAME entries from
your MX lists. 

Bo


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