I have a subdomain of a site, lets say
foo.example.com which has an A record to the IP of another server, lets say
example2.com. Ideally, I would like to have the example2's server also take care of the MX record for the
foo.example subdomain, but I'm not sure how this would work.
I'm wondering what the options are for doing this, whether this will work:
example.com DNS: foo A xx.xx.xx.xx foo MX mx.example2.com example2.com DNS: mx MX mx.thirdserver.com
Or could I set up a new dns zone on the
example2 server which would just handle the MX record for the
foo.example.com domain, where any mail sent to
foo.example.com would be handled by these mx records.
Or, alternately, should I solve this with a cname or dname record