diff --git a/conf/.env b/conf/.env
index 8f21fa35..87dc5b42 100644
--- a/conf/.env
+++ b/conf/.env
@@ -84,7 +84,7 @@ NODEINFO=true
 WEBFINGER=true
 
 ## Mail Configuration (Post-Installer)
-MAIL_DRIVER=smtp
+MAIL_DRIVER=sendmail
 MAIL_HOST=localhost
 MAIL_PORT=25
 MAIL_USERNAME=null