diff --git a/inventory/group_vars/all b/inventory/group_vars/all
index 7b86018c0d..0cb253773e 100644
--- a/inventory/group_vars/all
+++ b/inventory/group_vars/all
@@ -18,6 +18,7 @@ openshift_ansible: /srv/web/infra/openshift-ansible/
 freezes: true
 # most of our systems are in phx2
 datacenter: phx2
+postfix_group: "none"
 
 # usually we do not want to enable nested virt, only on some virthosts
 nested: false