diff --git a/src/dns_proxy/dns_resolver.erl b/src/dns_proxy/dns_resolver.erl
index 7bbada7..97e58c1 100644
--- a/src/dns_proxy/dns_resolver.erl
+++ b/src/dns_proxy/dns_resolver.erl
@@ -76,8 +76,13 @@ resolve0(QueryMsg = #dns_message{qc = 1, questions = [#dns_query{name = QName, t
             logger:debug("[dns_resolver] punchnet inbuilt qnanme: ~p, ip: ~p", [QName, Ip]),
             {ok, dns:encode_message(RespMsg)};
         error ->
-            EmptyDnsResp = dns:encode_message(build_nxdomain_response(QueryMsg)),
-            {ok, EmptyDnsResp}
+            case sdlan_domain_regedit:maybe_domain(QName) of
+                true ->
+                    EmptyDnsResp = dns:encode_message(build_nxdomain_response(QueryMsg)),
+                    {ok, EmptyDnsResp};
+                false ->
+                    {error, not_supported}
+            end
     end;
 resolve0(Error) ->
     {error, Error}.