Sorry. I disagree.

src/read_body.php

@@ -797,7 +797,7 @@ echo '    <table width="100%" cellpadding="1" cellspacing="0" align="center" bor
 echo '      <tr><td>';
 echo '        <table width="100%" cellpadding="3" cellspacing="0" align="center" border="0">';
 echo '          <tr bgcolor="'.$color[4].'"><td>';
-echo '            <table cellpadding="5" cellspacing="0"  border="0">';
+echo '            <table cellpadding="5" cellspacing="0" border="0" align="center">';
 echo '              <tr>'. html_tag( 'td', '<br>'. $messagebody."\n", 'left').'</td>';
 echo '            </table>';
 echo '          </td></tr>';