$pool['unconfirmed'] = $pool['sent_email'] - $pool['clicks'];
if ($pool['unconfirmed'] > 0) {
// Add link to list_unconfirmed what-file
$pool['unconfirmed'] = $pool['sent_email'] - $pool['clicks'];
if ($pool['unconfirmed'] > 0) {
// Add link to list_unconfirmed what-file