Begin by logging into your Plesk control panel. If you don't know how to do this, please see our article here. Once you've logged into Plesk select the "Subscriptions" option on the left, and then select the name of the subscription you wish to modify.

 

 

Once you have located to correct subscription, you will be presented with a varied list of options. Select "DNS Settings" from the list of available choices.

 

 

In the DNS settings menu, select the tab labeled "SOA", then modify the records as needed. Be sure to apply any changes before closing the window.