Re: [vserver] Sendmail and DNS follow up

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From: Paul Sladen (vserver_at_paul.sladen.org)
Date: Mon Aug 19 2002 - 06:21:42 EDT


On Sun, 18 Aug 2002, Roderick A. Anderson wrote:

> What is comes down to is I have to add a 'mail.' CNAME for the domain
> pointing to the actual host that is entered as the MX record [...]

I'm not sure quite what your problem is/was. It is clearly a DNS
configuration issue and not vserver related though.

You *cannot* use *any other* type of resource-record if you have already
associated a CNAME with that entry. It is *Illegal*.

By personal recommendation is /not/ to use CNAMEs--purely to use
A, AAAA and MX records for hosts, as most people who believe they know the
implicitions of using CNAMEs, don't.

I won't go as far as saying `never use CNAME records', although this is the
advice give to my customers.

        -Paul

-- 
Nottingham, GB

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