[clug] DNS + CNAMES + sendmail...

[Stephen Rothwell]

On Thu, 06 Aug 2009 10:12:56 +1000 Andrew Smith <andrew at coolchilli.com> wrote:
>
> Actually, MX records can't have CNAMES and should point to a host that 
> has an A record.  It's acceptable for a host to have both a CNAME and MX
                         ^^^^^^^^^^  unacceptable
 
> record.

Any DNS name that is the left hand side of a CNAME record *must not* have
any record of any other type.

The right hand side of any DNS record *must not* be a name that is the left
hand side of a CNAME record (except for the case of a CNAME).

-- 
Cheers,
Stephen Rothwell                    sfr at canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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