allow the admin to change txt-records for dkim, dmarc and spf directly

interface/web/dns/form/dns_txt.tform.php

@@ -170,6 +170,9 @@ $form["tabs"]['dns'] = array (
 	)
 );
 
-
-
+if($_SESSION["s"]["user"]["typ"] == 'admin') {
+	unset($form["tabs"]['dns']['fields']['data']['validators']);
+	$form["tabs"]['dns']['fields']['data']['validators'][0]['type'] = 'NOTEMPTY';
+	$form["tabs"]['dns']['fields']['data']['validators'][0]['errmsg'] = 'data_error_empty';
+}
 ?>