[geeks] simple DNS / nslookup question

[Sridhar Ayengar]

der Mouse wrote:
>>>> Honestly, i cannot think of a reason why i would [give a
>>>> registration point domain an A record], but i guess i cannot hurt.
>>> I suspect it's mostly done so that http://example.com/ works just as
>>> well as http://www.example.com/ does.
>> For myself, I could never figure out what was the reasoning behind
>> disallowing domain roots from having CNAME records.
> 
> Because it does not work sanely for a node with a CNAME to have any
> other RRs, and "domain roots" are always zone cutpoints and hence have,
> at a minimum, NS and SOA records.

Does this mean that a node with a CNAME can't have an MX either?

Peace...  Sridhar