メールサーベイ

noun

mail survey

A survey conducted by mail (postal or electronic). In modern Japanese, often refers to email-based surveys, but can include traditional postal surveys depending on context.

• 顧こ客きゃく満まん足ぞく度どを調しらべるためにメールサーベイを実じっ施しした。

  We conducted a mail survey to investigate customer satisfaction.