diff --git a/roles/monitoring-master/files/services_passive.conf b/roles/monitoring-master/files/services_passive.conf
index c3be1e4..1f6e08e 100644
--- a/roles/monitoring-master/files/services_passive.conf
+++ b/roles/monitoring-master/files/services_passive.conf
@@ -47,3 +47,8 @@ apply Service "darknet-reachable" {
     import "remote_passive"
  	assign where host.name == "vpn"
 }
+
+apply Service "mail_queue" {
+    import "remote_passive"
+    assign where host.name == "mail"
+}