Obtains information about the conditional forwarders for this account.
If no input parameters are provided for RemoteDomainNames, this request describes all conditional forwarders for the specified directory ID.
/// A client exception has occurred.
///
/// The specified directory is unavailable or could not be found.
///
/// The specified entity could not be found.
///
/// One or more parameters are not valid.
///
/// An exception has occurred in AWS Directory Service.
///
/// The operation is not supported.
///