diff --git a/inventory/host_vars/ibiblio02.fedoraproject.org b/inventory/host_vars/ibiblio02.fedoraproject.org
index d3b04caf7d..ef5f508c4c 100644
--- a/inventory/host_vars/ibiblio02.fedoraproject.org
+++ b/inventory/host_vars/ibiblio02.fedoraproject.org
@@ -12,4 +12,6 @@ has_ipv6: yes
 br0_ipv6: "2610:28:3090:3001:dead:beef:cafe:fe02"
 br0_ipv6_gw: "2610:28:3090:3001::1"
 
+postfix_group: vpn
+
 freezes: true
diff --git a/inventory/host_vars/ibiblio03.fedoraproject.org b/inventory/host_vars/ibiblio03.fedoraproject.org
index 1cd618d6bf..29b4dc0bbe 100644
--- a/inventory/host_vars/ibiblio03.fedoraproject.org
+++ b/inventory/host_vars/ibiblio03.fedoraproject.org
@@ -10,3 +10,5 @@ br0_nm: 255.255.255.128
 has_ipv6: yes
 br0_ipv6: "2610:28:3090:3001:dead:beef:cafe:fe03"
 br0_ipv6_gw: "2610:28:3090:3001::1"
+
+postfix_group: vpn
diff --git a/inventory/host_vars/ibiblio04.fedoraproject.org b/inventory/host_vars/ibiblio04.fedoraproject.org
index 2fe31e33fa..4fab950425 100644
--- a/inventory/host_vars/ibiblio04.fedoraproject.org
+++ b/inventory/host_vars/ibiblio04.fedoraproject.org
@@ -10,3 +10,5 @@ br0_nm: 255.255.255.128
 has_ipv6: yes
 br0_ipv6: "2610:28:3090:3001:dead:beef:cafe:fe04"
 br0_ipv6_gw: "2610:28:3090:3001::1"
+
+postfix_group: vpn
diff --git a/inventory/host_vars/ibiblio05.fedoraproject.org b/inventory/host_vars/ibiblio05.fedoraproject.org
index a86243a619..f8b2afc439 100644
--- a/inventory/host_vars/ibiblio05.fedoraproject.org
+++ b/inventory/host_vars/ibiblio05.fedoraproject.org
@@ -10,3 +10,5 @@ br0_nm: 255.255.255.128
 has_ipv6: yes
 br0_ipv6: "2610:28:3090:3001:dead:beef:cafe:fe05"
 br0_ipv6_gw: "2610:28:3090:3001::1"
+
+postfix_group: vpn