$mailparts = explode( '@', $host );
$domainpart = strtolower( implode( '.', array_reverse( explode( '.', $mailparts[1] ) ) ) );
$host = $domainpart . '@' . $mailparts[0];
$like = array( "$prot$host", $db->anyString() );
} elseif ( $prot == 'mailto:' ) {
// domainpart of email adress only. do not add '.'
$mailparts = explode( '@', $host );
$domainpart = strtolower( implode( '.', array_reverse( explode( '.', $mailparts[1] ) ) ) );
$host = $domainpart . '@' . $mailparts[0];
$like = array( "$prot$host", $db->anyString() );
} elseif ( $prot == 'mailto:' ) {
// domainpart of email adress only. do not add '.'