noun
non-receipt notification request indication
A computing term for a flag or indicator that requests notification when a message cannot be delivered. Very long compound; primarily used in technical documentation or protocols.
このプロトコルでは、受信不能通知要求表示を設定することで、配信失敗時に通知を受け取れる。
In this protocol, by setting the non-receipt notification request indication, you can receive a notification when delivery fails.
Compound of 受信 (reception), 不能 (impossible), 通知 (notification), 要求 (request), and 表示 (indication). A technical term likely coined for computing protocols.