DNS, have I got it all wrong?

Hiya

Well, here goes…I thought I was doing ok, then..

I have setup OS X Server at home to host email and to help me learn a little more about the server software itself.

When I set it up about 12 hours ago, it all worked OK, mail rxd and txd OK, OD was working a treat. This morning It stopped, so I used dnsreport.com and it told me that it now failed to connect to the mailserver.

I then did a lookup on my domain and discovered the my FQDN was listed as SOA and in the NS sections, surely this cant be right?

I did setup DNS on the server to enable me to host an OD Master, in setting it up like this, have I made a fatal error.

I have read somewhere about Split DNS, so my internals resolve to the Server and External to the Primary NS…

Or am I talking rubbish?

Any guidance would be gratefully recieved.

ipb1962