How do I leave mail at the registrar while serving the web from host?
I have a website aaa.fr with MX record correctly configured and working.
Now I'm buying the domain aaa.es. Can I just configure the MX record of aaa.es pointing to the IP of the mail server on aaa.fr?
What I mean is, can I avoid buying email boxes associated with the new domain aaa.es and rely totally on aaa.fr email server?