Unable to add an Addon domain in cPanel
If you received following error while adding domain as an Addon domain from your cPanel.
“sorry the domain is already pointed to an IP address that does not appear to use DNS servers associated with this server”. 
You can simply turn on “Allow Remote Domains” under the WHM tweak settings to resolve this error. Turn on “Allow Remote Domains” help us to add new Addon domains that having name servers other than your server.
To do the same, you can follow below steps :-
- Login to WHM
- Click on “Tweak Settings” under “Server Configuration”
- Change the value of “Allow Remote Domains” option under Domain tab from Off to On
- Click on save button.
Also, you will need to set “Allow Unregistered Domains” option to “On”. You can follow below steps to do the same.
- Login to WHM
- Click on “Tweak Settings” under “Server Configuration”
- Change the value of “Allow Unregistered Domains” option under Domain tab from Off to On
- Click on save button.
Note : Allow creation of parked/addon domains that resolve to other servers (e.g. domain transfers). So, this can be a major security problem. If you enabled it, do make sure that you are not to allow users to park common Internet domains and turned OFF these feature after adding Addon domain.
