Gotcha, I suppose it helps to read the main article first
After removing dnsmasq I'm still getting the message though....Attention! the use of Bind or dnsmasq are mutually exclusive, you have to setup one OR the other!
DNS ERROR - none of the MX records for lulzy.ath.cx
resolve to this host
Change domain name? [Yes]
Like I said before I tried adding the MX record to dyndns but it had no effect.