Cache control header set for xml like html meta tag
<p>Is it possible to set meta tag in xml like <code>&lt;meta http-equiv="Cache-Control" content="max-age=120"/&gt;</code> </p>

<p>I have to get xml feed from my server and set cache control max age that next time copernica email marketing will not send request to my server for xml feed and get xml from cache.</p>