When creating a new domain alias, the operation fails with the following error message in Plesk (in this example, domain alias example.net for example.com):
Error: Unable to add the ipv4.example.net. IN A 203.0.113.2 record to zone example.net: DNS record already exists.
The domain, for which a domain alias is created, contains duplicate DNS records.
In this example, there is a duplicate DNS entry for example.com that points to the same IP address 203.0.113.2 at Domains > example.com > DNS Settings.
- In Plesk, go to Domains > example.com > DNS Settings.
Select the duplicate DNS entries and remove them.
On the next page, click Update to apply the changes.