Enable OpenDKIM and OpenDMARC as MILTER

templates/Fedora/35/etc/postfix/main.cf

@@ -736,3 +736,8 @@ smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt
 smtp_tls_security_level = may
 meta_directory = /etc/postfix
 shlib_directory = /usr/lib64/postfix
+
+{% if ensure_postfix.milter_list is defined and ensure_postfix.milter_list is iterable %}
+# The MILTER Configuration
+smtpd_milters = {% for milter in ensure_postfix.milter_list %}{{ milter.protocol }}:{{ milter.hostname }}:{{ milter:port }} {% endfor %}
+{% endif %}

vars/Fedora-35-default.yml

@@ -1,5 +1,14 @@
 ---
 # vars file for ensure_postfix
+milter_list:
+  - description: 'OpenDKIM'
+    hostname: 'localhost'
+    port: '8891'
+    protocol: 'inet'
+  - description: 'OpenDMARC'
+    hostname: 'localhost'
+    port: '8893'
+    protocol: 'inet'
 package_list:
   - name: 'opendkim'
     state: 'present'