new dns helper class

core/Http/Response.php

@@ -192,6 +192,15 @@ class Response extends SymfonyRespose
             'errorPageDetails'         => $this->getErrorPageData($responseResolver),
             'dnsvars'                  => DnsHelper::KerioEmailCheckDNS($params,$nameserver)
         ];
+
+        logModuleCall(
+            'kerioEmail',
+            __FUNCTION__,
+            $params,
+            'Debug',
+            $vars
+        );
+
         try
         {
             $this->loadLangContext();