diff --git a/playbooks/templates/heartbeat.yml.jinja2 b/playbooks/templates/heartbeat.yml.jinja2
index fb7caf4c535f7999f3c930e5e9a0bee16454bc96..87ac4a91c1d97009436c4a06f780a3ff3d920e28 100644
--- a/playbooks/templates/heartbeat.yml.jinja2
+++ b/playbooks/templates/heartbeat.yml.jinja2
@@ -2,6 +2,13 @@
 
 {% if lookup("env","ANSIBLE_COMPANY") != 'local' %}
 {% for host in groups.all %}
+- type: port25
+  schedule: '*/5 * * * * * *'
+  tags:
+    - '{{ lookup("env","ANSIBLE_COMPANY") }}'
+  name: 'Blocked port 25 on {{ host }}'
+  hosts:
+    - {{ hostvars[host]['static_ipv4'] }}
 {% if hostvars[host]['icmp_monitoring']|default(true) %}
 - type: icmp
   schedule: '*/5 * * * * * *'