diff --git a/publish/mail.php b/publish/mail.php
index 5822f31..e139995 100644
--- a/publish/mail.php
+++ b/publish/mail.php
@@ -55,6 +55,7 @@
             'password' => env('MAIL_PASSWORD'),
             'timeout' => null,
             'local_domain' => env('MAIL_EHLO_DOMAIN'),
+            'scheme' => 'smtp',
         ],
 
         'ses' => [