配信 はいしん不能 ふのう通知 つうちではありません
haishinfuno utsu uchidewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 配信不能通知

1. Not a delivery failure notification.; Not a notification of undeliverability.

Negative
Polite
Formal Register
Computing