/^Received:.*(by.*with ESMTPSA.*)$/ REPLACE Received: $1 /^X-Originating-IP:/ IGNORE /^X-Mailer:/ IGNORE /^User-Agent:/ IGNORE {% if postfix.add_header_checks|length %} # {{ ansible_managed }} {% for item in postfix.add_header_checks %} /{{ item.regexp }}/ {{ item.action }} {% endfor %} {% endif %}