--- - name: "Install Postfix via apt" apt: update_cache: yes state: present name: - postfix - name: Install Postfix mail gateway config template: src: templates/main.cf dest: /etc/postfix/main.cf - name: Build /etc/mailname shell: hostname --fqdn > /etc/mailname - name: Restart Postfix service: name: postfix state: restarted enabled: yes - name: Allow smtp port via ufw community.general.ufw: rule: allow port: smtp - name: "Install postfix exporter" apt: update_cache: yes state: present name: - prometheus-postfix-exporter - name: Enable and restart exporter daemon service: name: prometheus-postfix-exporter state: restarted enabled: yes - name: Allow postfix exporter via ufw community.general.ufw: rule: allow port: 9706 proto: tcp src: 192.168.69.0/24 ...