発信 はっしん しゃ要求 ようきゅう代行 だいこう受信 じゅしん しゃでした
hasshinshayō kyūdaikōjushinshadeshita

Noun
Desu Copula

The polite past form of 発信者要求代行受信者

1. Sender-requested proxy receiver was. ; ; (Implies someone acted as a receiver on behalf of the sender, in the past.)

Past/Perfective
Polite
Computing