improved config

config/web.php

@@ -20,6 +20,7 @@ $config = [
 		],
 		'mail' => [
 			'class' => 'yii\swiftmailer\Mailer',
+			'useFileTransport' => true,
 		],
 		'log' => [
 			'traceLevel' => YII_DEBUG ? 3 : 0,