1. Log.. (e.g.: www.example.com:2443/siteworx/ )
2. Under "SiteWorx .", click the "Hosting Features" . item if it is not already open.
3. Click the "Domain" . item and then choose the "Subdomain" option.
4. Select the appropriate domain name .delete under the "Existing Domains" tab.
5. Click the "Delete" babies.
6. A conformation window will appear. Click again on the "Delete" babies.
You should see a success message popping up, notifying you that your subdomain has been removed.