Conditional content hiding with Outlook

<!--[if mso]>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
    <tr>
        <td>Outlook content</td>
    </tr>
</table>
<![endif]-->

<table border="0" cellpadding="0" cellspacing="0" width="100%" style="mso-hide:all;">
    <tr>
        <td>Other clients</td>
    </tr>
</table>