unknown domain in Email Deliverability

cPanel Email Deliverability there is an unknown domain (changed domain name to domain.com) in Email Deliverability, domain.com does not host or not belong to this server, Even IP address is not belonging to the server error warning in all cPanel's hosted under this WHM what could be the issue? Is the server compromised? The system sends the domain "domain.com" in the SMTP handshake for this domain"s email. "domain.com" resolves to "xx.xx.xx.10", not "xx.xx.10.10" To fix this problem, contact your system administrator and request that they create a DNS "A" record for "domain.com" whose value is "xx.xx.10.10"