Unable to add the CNAME record: The specific domain name is not valid, you need to specify a valid domain name

Symptoms

• Unable to add the CNAME record with more than 63 symbols in Domains > example.com > DNS Settings, the following error is shown:
  

  PLESK_ERROR: The specific domain name is not valid, you need to specify a valid domain name like domain.com plesk

• In an attempt to add the CNAME record via CLI, the error below appears:
  

  C:\> plesk bin dns --add example.com -cname _a54644e9e5f7f65e8d350894c670de24.abc.serverveserver.com -canonical 290898b0ac2a944085f646b0c16ec7b8122dda0db0c904dc4e2a46603a5f2e33.w0197934001555438672.example.com
  Incorrect DNS Record parameter values were specified

Cause

This is an expected behavior, according to RFC 1035 standard the maximum length of DNS record must be 63 characters or less.

Resolution

Contact your DNS Registrar with the request to correct the provided CNAME record.