diff --git a/inventory/group_vars/mailman b/inventory/group_vars/mailman
index 31905f4bff..d63c77fb71 100644
--- a/inventory/group_vars/mailman
+++ b/inventory/group_vars/mailman
@@ -6,7 +6,8 @@ num_cpus: 2
 # for systems that do not match the above - specify the same parameter in
 # the host_vars/$hostname file
 
-tcp_ports: [ 25, 80, 443 ]
+tcp_ports: [ 25, 80, 443, 3000, 3001 ]
+
 fas_client_groups: sysadmin-tools,sysadmin-main
 
 # These are consumed by a task in roles/fedmsg/base/main.yml
diff --git a/inventory/group_vars/mailman-stg b/inventory/group_vars/mailman-stg
index bc2850214a..3c3202600a 100644
--- a/inventory/group_vars/mailman-stg
+++ b/inventory/group_vars/mailman-stg
@@ -6,7 +6,7 @@ num_cpus: 2
 # for systems that do not match the above - specify the same parameter in
 # the host_vars/$hostname file
 
-tcp_ports: [ 25, 80, 443 ]
+tcp_ports: [ 25, 80, 443, 3000, 3001 ]
 fas_client_groups: sysadmin-tools,sysadmin-main
 
 # These are consumed by a task in roles/fedmsg/base/main.yml