Animated Gif with Static MSO Image

Animated gif (for everything except MSO)

<!--[if !mso]><!-->
<table cellpadding="0" cellspacing="0" border="0" width="100%">
  <tr>
    <td align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#3a3a3a; padding:0 0 0 0;"><img src="https://camiah.com/wp-content/uploads/2016/08/slice-on-the-guide-9.gif" alt="" width="500" height="281" border="0" style="display:block;" /></td>
  </tr>
</table>
<!--<![endif]-->

Static Image (for MSO)

<!--[if mso]>
<table cellpadding="0" cellspacing="0" border="0" width="100%">
  <tr>
    <td align="left" valign="top" style="font-family:Arial, Helvetica, sans-serif; font-size:14px; color:#3a3a3a; padding:0 0 0 0;"><img src="http://placehold.it/500x281" alt="" width="500" height="281" border="0" style="display:block;" /></td>
  </tr>
</table>
<![endif]-->