<p>Technically this section is not required (as, if you have completed the previous sections, you already have a functional e-mail server).</p> <p>Additionally these sections may not be worked-out as extensively as the previous ones, but can nevertheless be inspiring and helpful in various situations though, if not bluntly advisable (e.g. creating backups).</p> <p>So make sure to skim through them and apply where applicable!</p>