I have posted on this once already, but my post wasn't really geared towards this.

Is there anybody on here the has been able to get Zimbra up and running using a DynDNS domain? I have signed up for Custom DNS through DynDNS and have my domain and MX records setup there, however, when I try to install Zimbra it still gives a lovely DNS Error. I have modified my hosts file as the Zimbra guide says, but that doesn't seem to help.

I am almost ready to give up because its just frustrating me, so any suggestions or help would be greatly appreciated.