update dns active

core/Helper/DnsHelper.php

@@ -129,7 +129,7 @@ class DnsHelper
             'class' => 'IN',
             'data' => array(
                 'preference' => '10',
-                'exchange' => $dnsParams['mxt'],
+                'exchange' => $dnsParams['editmxactive'],
             ),
         );
         array_push($zoneRecords, $mxRecord);