Need to change dns for ubuntu-pe.org

Hello

We planing implement Google Apps (Gmail exactly) for the domain ubuntu-pe.org ... is this possible and there is no problem??
if this is possible
We need change DNS, configuring the MX records for ubuntu-pe.org :

 Priority Mail Server
1 ASPMX.L.GOOGLE.COM.
5 ALT1.ASPMX.L.GOOGLE.COM.
5 ALT2.ASPMX.L.GOOGLE.COM.
10 ASPMX2.GOOGLEMAIL.COM.
10 ASPMX3.GOOGLEMAIL.COM.
10 ASPMX4.GOOGLEMAIL.COM.
10 ASPMX5.GOOGLEMAIL.COM.

*include trailing dot (.) at the end of any full-qualified domain names

And include one new CNAME:

mail.ubuntu-pe.org IN CNAME ghs.google.com

Thanks!
Dante
Peruvian LoCo Team