diff --git a/nodes/home.bootshorn-laptop.py b/nodes/home.bootshorn-laptop.py_
similarity index 100%
rename from nodes/home.bootshorn-laptop.py
rename to nodes/home.bootshorn-laptop.py_
diff --git a/nodes/home.stromzaehler.py b/nodes/home.stromzaehler.py_
similarity index 100%
rename from nodes/home.stromzaehler.py
rename to nodes/home.stromzaehler.py_
diff --git a/nodes/htz.mails.py b/nodes/htz.mails.py
index baf4a5a..454fdf3 100644
--- a/nodes/htz.mails.py
+++ b/nodes/htz.mails.py
@@ -228,11 +228,6 @@
                         '10.0.228.0/24',
                     ],
                 },
-                'mseibert.mailman': {
-                    'allowed_ips': [
-                        '10.0.229.0/24',
-                    ],
-                },
                 'ovh.left4me': {},
             },
             'clients': {
diff --git a/nodes/mseibert.mailman.py b/nodes/mseibert.mailman.py_
similarity index 100%
rename from nodes/mseibert.mailman.py
rename to nodes/mseibert.mailman.py_