diff --git a/zone/retr b/zone/retr
new file mode 100644
index 0000000..3a6a37a
--- /dev/null
+++ b/zone/retr
@@ -0,0 +1,2 @@
+retr  IN  NS  ns1.m4x.net.
+retr  IN  NS  ns2.m4x.net.