public function getImapStream($forceConnection = true) {
		static $imapStream;
		if($forceConnection) {
			if($imapStream && (!is_resource($imapStream) || !imap_ping($imapStream))) {
				$this->disconnect();
				$imapStream = null;
			}
			if(!$imapStream) {
				$imapStream = $this->initImapStream();
			}
		}
		return $imapStream;
	}