friendica/view/templates/email/system/html.tpl

<table>
	<thead>
	<tr>
		<td>
			{{$preamble nofilter}}
		</td>
	</tr>
	</thead>
	<tbody>
		<tr>
			<td style="padding-right:22px;">
				{{$htmlversion nofilter}}
			</td>
		</tr>
	</tbody>
	<tfoot>
		<tr>
			<td>
				{{$thanks}}
			</td>
		</tr>
	<tr>
		<td>
			{{$site_admin}}
		</td>
	</tr>
	</tfoot>
</table>