送信 そうしん がわSPM えすぴいえむじゃありませんでした
sō shingawa esu pii emuja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 送信側SPM

1. Was not the sender SPM.; Was not from the sending SPM.

Past/Perfective
Negative
Polite
Terminal Form
Computing