{ US"retry_defer", L_retry_defer },
{ US"return_path_on_delivery", LX_return_path_on_delivery },
{ US"sender_on_delivery", LX_sender_on_delivery },
{ US"retry_defer", L_retry_defer },
{ US"return_path_on_delivery", LX_return_path_on_delivery },
{ US"sender_on_delivery", LX_sender_on_delivery },