Igualito a este?
Código PHP:
<?php
include ('conect.php');
$sql="SELECT `email`, COUNT(*) AS 'total', SUM(`monto`) AS 'suma' FROM `factura` GROUP BY `email`";
$sql_exec=mysql_query($sql);
while($row=mysql_fetch_assoc($sql_exec))
{
?>
<table width="955" border="0" cellspacing="0" cellpadding="0">
<tr>
<td><?php echo $row['suma']; ?></td>
</tr>
<?php
}
?>