here's one way ... you should also look for formatting functions that'll do this.
create a var for the message body, $msg. then try this ...
$msg = "";
$msg += "<table>";
$msg += " <tr>";
$msg += " <td>";
$msg += " DATA";
$msg += " </td>";
$msg += " </tr>";
$msg += " <tr>";
$msg += " <td>";
$msg += " DATA";
$msg += " </td>";
$msg += " </tr>";
$msg += "</table>";
then stick $msg into the mailer function as the message body.
cyberfiche