public static function f($connection)
{
list($host, $email, $password) = explode('~', $connection);
if (empty(self::$instance_f[$connection])) {
debug::output("Starting Connection to {$email} ({$host})");
$i = new imap();
$i->connect($host, $email, $password);
self::$instance_f[$connection] = $i;
return $i;
} else {
return self::$instance_f[$connection];
}
}