Support Easy Spam Fighter configuration

tasks/config/mail.yml

@@ -8,6 +8,9 @@
 - name: Import Exim configuration
   import_tasks: mail/exim.yml
 
+- name: Import ESF configuration
+  import_tasks: mail/esf.yml
+
 - name: Ensure DirectAdmin Custom Templates exists
   file:
     path: /usr/local/directadmin/data/templates/custom