Not possible to add CNAME record into the root domain on Plesk server

Symptoms

• On attempt to add CNAME record like below Domains > example.com > DNS Settings or Tools & Settings > DNS Template :
  

  The error appears:
  For single domain

  This record will conflict with the glue record for the zone 'example.com'

  For DNS template: 

  CNAME DNS zone record cannot coexist with other DNS records in the same zone.

Cause

Adding such records is prohibited by RFC1912 hence it is not possible to add them via Plesk.

Resolution

This limitation is not applied to ALIAS or ANAME DNS records, however, the feature of adding such DNS records is yet to be implemented in Plesk. 

Take part in our product improvement by referring to the following link: Abilty to add ALIAS or ANAME DNS records in Plesk 

The top-ranked suggestions are likely to be included in the next versions of Plesk.

Warning: Adding such records manually to DNS zone files will lead BIND server to fail to restart.