diff --git a/conf/app.ini b/conf/app.ini
index cf11950..0cb1462 100644
--- a/conf/app.ini
+++ b/conf/app.ini
@@ -37,7 +37,7 @@ LFS_JWT_SECRET = __LFS_JWT_SECRET__
 ENABLED = true
 SMTP_ADDR = __DOMAIN__
 SMTP_PORT = 587
-PROTOCOL = smtps+starttls
+PROTOCOL = smtp+starttls
 FROM = "Gitea" <__APP__-noreply@__DOMAIN__>
 USER = __APP__
 PASSWD = __MAIL_PWD__