debug authtoken call

zimbraSingle.php

@@ -758,8 +758,7 @@ function zimbraSingle_ServiceSingleSignOn($params) {
         return $domainOptions->getMessage();
     }
     $preAuthKey = $domainOptions['zimbraPreAuthKey'];
-    $apiAccountManager= new Zm_Account($api);
-    $authToken = $apiAccountManager->getAccountToken($params['username'], $preAuthKey, '1000');
+    $authToken = new Zm_Auth($params['serverhostname'], $params['username'], $preAuthKey, 'user');
     logModuleCall(
         'zimbrasingle',
         __FUNCTION__,