diff --git a/inventory/group_vars/smtp-mm b/inventory/group_vars/smtp-mm
index a9dc336224..16ce63017b 100644
--- a/inventory/group_vars/smtp-mm
+++ b/inventory/group_vars/smtp-mm
@@ -12,3 +12,4 @@ tcp_ports: [ 25 ]
 fas_client_groups: sysadmin-main, sysadmin-noc, sysadmin-tools, fi-apprentice
 
 postfix_transport_filename: transports.mm-smtp
+postfix_group: smtp-mm