forwarding "@" to a different domain?

[/dev/rob0]

On Sunday 08 January 2012 09:48:42 enigmedia wrote:
> Hi All: I have a situation where I need to forward requests for
> "mydomain.com" and "www.mydomain.com" to a third party:

"mydomain.com" is a real domain, and probably not yours. If for some 
reason you do not want to mention your real domain name, use 
"example.com" (or example.TLD for most top-level domains), which is 
reserved for examples.

> "mydomain.myshopify.com" (while still pointing other things like
> MX records elsewhere).
> 
> I realize I can point a CNAME for "WWW" to
> "mydomain.myshopify.com", but how do I point "mydomain.com" to
> this third party if there is no A record to point to?

This is beginning to be a FAQ here, perhaps due to the popularity of 
such hosting services (which seem to have been designed by people who 
have a poor understanding of DNS.)

This was my reply in a thread last month; refer to the entire thread 
for more:

https://lists.isc.org/pipermail/bind-users/2011-December/085918.html
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