I'm currently installing Zimbra on Edgy (Server - DNS Server Option) on my domain with the hostname com.mydomain.com. (All the required libraries are available in APT by the way, so you just apt-get install (req libs) and you're ready to go.. oh .. and to get to root use "sudo -s")
I've updated the mx records to point to com.mydomain.com and i've checked to ensure that they do indeed point to com.mydomain.com and com.mydomain.com resolves to the network's IP and I've verified my Router config ports point to com.
However it says that MX records for com.mydomain.com do not point to this host (com.mydomain.com) ? Displays
MX: (com.mydomain.com) MY.IP