diff --git a/tasks/configure_prometheus_exporters_external.yml b/tasks/configure_prometheus_exporters_external.yml
index b8bbf47..65f7999 100644
--- a/tasks/configure_prometheus_exporters_external.yml
+++ b/tasks/configure_prometheus_exporters_external.yml
@@ -53,13 +53,21 @@
     state: present
     name: authnz_external
 # Add DNS entries in OVH
+
 - name: Check if certificates exist
   stat:
     path: "/etc/letsencrypt/live/node-metrics-{{ ansible_fqdn }}/fullchain.pem"
   register: node_certificate
+
+- name: Check if postfix certificates exist
+  stat:
+    path: "/etc/letsencrypt/live/postfix-metrics-{{ ansible_fqdn }}/fullchain.pem"
+  register: postfix_certificate
+
 - name: Request certificates for node and postfix
   include_tasks: configure_prometheus_exporters_certificates.yml
-  when: not node_certificate.stat.exists
+  when: not node_certificate.stat.exists or not postfix_certificate.stat.exists
+
 - name: Ensure virtual hosts configuration is deployed
   template:
     src: templates/apache2.conf.j2
@@ -74,4 +82,4 @@
 - name: Start Apache2 after request certificate
   service:
     name: apache2
-    state: started
\ No newline at end of file
+    state: started