Add postfix non mailhost task

roles/postfix-non-mailhost/tasks/main.yml

@@ -0,0 +1,14 @@
+---
+- name: Install postfix
+  apt:
+    name: postfix
+    update_cache: true
+  register: result
+  retries: 3
+  until: result is succeeded
+
+- name: Configure postfix
+  template:
+    src: main.cf.j2
+    dest: /etc/postfix/main.cf
+  notify: restart postfix