<header>Outlook auto-configuration XML</header>

This field allows you to customize the XML that is returned to mail clients
that access the URL path <tt>/autodiscover/autodiscover.xml</tt> on a domain using this template. Clients like Outlook can use this
XML to automatically configure the mail server hostname, login, port, protocol
and username, based on the email address. <p>

The default XML generated by Virtualmin will work fine in most cases, but in
some situations you want to change the IMAP or SMTP 