05_postfix.yml

---
- hosts: all

  become: yes
  gather_facts: False 

  tasks:
    - name: Install postfix
      dnf: 
        name: postfix
        state: present
    
    - name: Allow receiving emails from everywhere
      lineinfile: 
        dest: /etc/postfix/main.cf
        regexp: '^\s*inet_interfaces'
        line: "inet_interfaces = all"
      notify: Restart postfix
    
    - name: Allow only local clients to send emails
      lineinfile: 
        dest: /etc/postfix/main.cf
        line: "smtpd_client_restrictions = permit_inet_interfaces"
      notify: Restart postfix

    - name: Enable virtual_alias_maps
      lineinfile: 
        dest: /etc/postfix/main.cf
        line: "virtual_alias_maps = hash:/etc/postfix/virtual"
      notify: Restart postfix

    - name: Set catch-all email redirect
      copy: 
        dest: /etc/postfix/virtual
        content: "@{{ hostname }} {{ target_email }}"
        force: yes
      notify: Reload virtual table

  handlers:
    - name: Restart postfix
      service: 
        name: postfix 
        state: restarted
        enabled: yes

    - name: Reload virtual table
      command: postmap /etc/postfix/virtual