What does trigger the message 'The domain is not resolvable' to appear in Plesk?

Question

What does trigger the message 'The domain is not resolvable' to appear in Plesk? How to remove the message 'The domain is not resolvable' when the domain resolves correctly?

PLESK_ERROR: Warning: The domain is not resolvable. To put your website online, correct DNS Settings.

PLESK_ERROR: Domain is not resolvable

PLESK_ERROR: Your website is offline because its domain name does not resolve to the server IP address

Answer

Upon creating a new domain in Plesk, Plesk will verify if the domain DNS records resolve to the Plesk server and provides some recommendations and guidance to the users.

Also, the Plesk daily tasks perform the same validations periodically in order to make sure the users are aware of the resolvable domain status. If necessary, consider running the following command to update the DNS resolvable verifications for the domains that are shown in Plesk GUI:

# plesk daily CheckDomainsResolve