public function getBoxInfo( $folder = NULL )
	{
		$address	= $this->connection->getAddress( $this->folder.$folder );
		$info		= imap_mailboxmsginfo( $this->connection->getStream() );
		if( !$info )
			throw new Exception( "imap_mailboxmsginfo() failed: ". imap_lasterror() );
		return array(
			"date"		=> $info->Date,
			"driver"	=> $info->Driver,
			"mailbox"	=> $info->Mailbox,
			"messages"	=> $info->Nmsgs,
			"recent"	=> $info->Recent,
			"size"		=> $info->Size,
		);
	}