diff --git a/app/classes/Framadate/Services/MailService.php b/app/classes/Framadate/Services/MailService.php
index 5db94b1..68d3b7b 100644
--- a/app/classes/Framadate/Services/MailService.php
+++ b/app/classes/Framadate/Services/MailService.php
@@ -118,6 +118,7 @@ class MailService {
         $available_options = [
             'host' => 'Host',
             'auth' => 'SMTPAuth',
+            'authtype' => 'AuthType',
             'username' => 'Username',
             'password' => 'Password',
             'secure' => 'SMTPSecure',