misdelivery — when a package, mail, or delivery is delivered to the wrong address; a delivery mistake (also used as a suru-verb).
配達員のミスで荷物が誤配されてしまった。
The delivery was misdelivered due to the courier's mistake.
郵便局に誤配の問い合わせをした。
I contacted the post office about the misdelivery.
システムの不具合で大量のメールが誤配されてしまった。
Due to a system malfunction, a large number of emails were misdelivered.