diff --git a/tmail/Dockerfile b/tmail/Dockerfile
index 81adefa..54c8a29 100644
--- a/tmail/Dockerfile
+++ b/tmail/Dockerfile
@@ -28,6 +28,5 @@ CMD twistd -n mail --smtp=tcp:25 \
                    --pop3=tcp:110 \
                    --relay=$MAIL_PATH/queue \
                    --maildirdbmdomain=$MAIL_NAME=$MAIL_PATH \
-                   --user $MAIL_USER=$MAIL_PASS \
-                   --disable-anonymous \
+                   --user=$MAIL_USER=$MAIL_PASS \
                    --bounce-to-postmaster