If you are providing your own HTML, this is the code you would want to place in your footer for proper setting of your system tags:
<p>*|LIST:DESCRIPTION|* <br />
<br />
<a href="*|UNSUB|*">Unsubscribe</a> *|EMAIL|* from this list.<br />
<br />
Our mailing address is:<br />
*|HTML:LIST_ADDRESS_HTML|*<br />
<br />
Copyright (C) *|CURRENT_YEAR|* *|LIST:COMPANY|* All rights reserved.<br />
<br />
<a href="*|FORWARD|*">Forward</a> this email to a friend<br />
<a href="*|UPDATE_PROFILE|*">Update your profile</a></p>
Note
You must place this code in the SOURCE of the footer, not the content. To do so, click on source on the editor toolbar, copy the code in, and then click on source to move back to the regular editor.