From owner-freebsd-isp  Mon Jan 15  9:11:40 2001
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Date: Mon, 15 Jan 2001 11:12:37 -0600
From: Chris Cook <ccook@tcworks.net>
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To: Dirk Meyer <dirk.meyer@dinoex.sub.org>
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Subject: Re: sendmail queue
References: <Pr5d9lj5YQ@dmeyer.dinoex.sub.org> <Pine.BSF.4.21.0101131042110.45824-100000@arnold.neland.dk> <WndPflj5YQ@dmeyer.dinoex.sub.org> <3A613A19.3D7A6895@quake.com.au> <002401c07df7$ac1c3de0$0400a8c0@Home> <21e7dW2RC5@dmeyer.dinoex.sub.org>
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I have had many people tell me that using a CNAME to point to a mail
server is a very bad thing that will cause issues with some MTA's... can
anyone explain to me why?  (just saw a CNAME for a mail server in this
example).

Dirk Meyer wrote:
>
> IT must be published in your DNS zone,
> here an example:
> 
> www.some-domain.net.    IN      A       192.168.1.1
> ftp.some-domain.net.    CNAME www.some-domain.net.
> mail.some-domain.net.   CNAME www.some-domain.net. 	<==========
> 
> backup.some-other.net.  IN      A       192.168.2.1
> 
> some-domain.net.        IN      MX      10      www.some-domain.net.
> some-domain.net.        IN      MX      20      backup.some-other.net.


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