+>>> check dnssec require list
+>>> delay500.test.ex in dnssec_require_domains? no (option unset)
+>>> check dnssec request list
+>>> delay500.test.ex in dnssec_request_domains?
+>>> list element: *
+>>> delay500.test.ex in dnssec_request_domains? yes (matched "*")
+>>> local host found for non-MX address