--- - name: Converge hosts: all roles: - ansible-role-postfix_mta vars: postfix_config: inet_protocols: ipv4 transport_maps: hash:/etc/postfix/transport aliases_maps: hash:/etc/postfix/aliases postfix_transports: google.com: smtp:127.0.0.1 postfix_aliases: root: - admin - abuse admin: admin@localhost.loc pre_tasks: - name: update apt cache ansible.builtin.apt: update_cache: true