diff --git a/roles/internalsmtp/files/prometheus-postfix-exporter b/roles/internalsmtp/files/prometheus-postfix-exporter
new file mode 100644
index 0000000..061a0f5
--- /dev/null
+++ b/roles/internalsmtp/files/prometheus-postfix-exporter
@@ -0,0 +1,15 @@
+# Private log file from Postfix to read and truncate. Configured in
+# /etc/rsyslog.d/prometheus-postfix-exporter.conf
+POSTFIXLOGFILE=/var/log/mail.log
+
+# Extra arguments for the daemon.
+ARGS=''
+
+# Prometheus-postfix-exporter supports the following options:
+#  --postfix.showq_path string
+#        Path at which Postfix places its showq socket.
+#        (default "/var/spool/postfix/public/showq")
+#  --web.listen-address string
+#        Address to listen on for web interface and telemetry. (default ":9154")
+#  --web.telemetry-path string
+#        Path under which to expose metrics. (default "/metrics")
diff --git a/roles/internalsmtp/tasks/main.yaml b/roles/internalsmtp/tasks/main.yaml
index 671830a..f3068d2 100644
--- a/roles/internalsmtp/tasks/main.yaml
+++ b/roles/internalsmtp/tasks/main.yaml
@@ -24,6 +24,14 @@
     name:
      - prometheus-postfix-exporter
 
+- name: Copy default nginx config
+  ansible.builtin.copy:
+    src: prometheus-postfix-exporter
+    dest: /etc/default/prometheus-postfix-exporter
+    owner: root
+    group: root
+    mode: '0644'
+
 - name: Enable and restart exporter daemon
   service:
     name: prometheus-postfix-exporter
diff --git a/roles/smtpgateway/files/prometheus-postfix-exporter b/roles/smtpgateway/files/prometheus-postfix-exporter
new file mode 100644
index 0000000..061a0f5
--- /dev/null
+++ b/roles/smtpgateway/files/prometheus-postfix-exporter
@@ -0,0 +1,15 @@
+# Private log file from Postfix to read and truncate. Configured in
+# /etc/rsyslog.d/prometheus-postfix-exporter.conf
+POSTFIXLOGFILE=/var/log/mail.log
+
+# Extra arguments for the daemon.
+ARGS=''
+
+# Prometheus-postfix-exporter supports the following options:
+#  --postfix.showq_path string
+#        Path at which Postfix places its showq socket.
+#        (default "/var/spool/postfix/public/showq")
+#  --web.listen-address string
+#        Address to listen on for web interface and telemetry. (default ":9154")
+#  --web.telemetry-path string
+#        Path under which to expose metrics. (default "/metrics")
diff --git a/roles/smtpgateway/tasks/main.yaml b/roles/smtpgateway/tasks/main.yaml
index 50b4055..e1d2db1 100644
--- a/roles/smtpgateway/tasks/main.yaml
+++ b/roles/smtpgateway/tasks/main.yaml
@@ -33,6 +33,14 @@
     name:
      - prometheus-postfix-exporter
 
+- name: Copy default nginx config
+  ansible.builtin.copy:
+    src: prometheus-postfix-exporter
+    dest: /etc/default/prometheus-postfix-exporter
+    owner: root
+    group: root
+    mode: '0644'
+
 - name: Enable and restart exporter daemon
   service:
     name: prometheus-postfix-exporter