require new email status style

classes/plugin/Controllers/Login/LoginController.php

@@ -483,6 +483,8 @@ class LoginController extends AdminController
         try {
             $message = $email->message($subject, $body, 'text/html')->setFrom($from)->setTo($to);
             $sent = $email->send($message);
+            //backward compatibility
+            $sent = $sent['status'] ?? 1;
             if ($sent < 1) {
                 throw new \RuntimeException('Sending email failed');
             }