Deleting DNS Zones
Deleting a DNS Zone will stop all services linked to the domain if it is using the Sitehost Name Servers.
Steps to delete a DNS Zone
Follow these steps to delete a DNS Zone:
From the list of DNS zones, select the red "X" next to the domain that you want to remove.
(see Figure 1)
Click on the button to confirm and delete the zone you have selected. (see Figure 2)