The error messages make sense since this host is not either airesistemas nor ox for such domain. Regardless, UCS is pulling this names from somewhere I haven't been able to find on my queries of LDAP or UCR.
Correct name to be pulled to match certificate and have a route to the system is "mail" as the title indicates.
Please let me know where on the new UCS I can update the correct name "mail". Please se attached images:
ucr dump | grep hostname