에서 보낸

sent from

→ 에서
phrase Uncommon #10,188
sent from Used before a noun to describe something sent from a person, organization, or place. Depending on context, 보내다 can also mean “to spend” time, but 에서 보낸 usually indicates the sender or source.
KO: 회사에서 보낸 이메일을 확인했어요.
EN: I checked the email sent from the company.

군대에서 보낸 편지 야

It’s a letter I received from someone in the military.

— 아멜리에 (2001)