How can I configure PTR record in Plesk?
To add a new resource record to the zone:
Go to the Websites & Domains tab and click the domain name whose DNS settings you want to manage..
Click DNS Settings.
Click Add Record.
Select a resource record type, and specify the appropriate data.
- Click OK, and then click Update.
General documentation about DNS management in Plesk you could find in Plesk administrators guide.
For more details on PTR records and it's format check the following link.