Breakdown of oneul imeillo annaereul badasseoyo.
Questions & Answers about oneul imeillo annaereul badasseoyo.
-로 here marks the means/method: by email, through email, or via email.
So 이메일로 means:
- by email
- via email
This is a very common use of -로.
Examples:
- 버스로 갔어요. = I went by bus.
- 한국어로 말해요. = I speak in Korean.
- 이메일로 연락했어요. = I contacted them by email.
In your sentence, 이메일로 안내를 받았어요 means the notice/instructions were received through email.
Because -로 and -에서 do different jobs.
- -로 = the method/tool/channel
- -에서 = the place where something happens, or sometimes the source in different kinds of expressions
In this sentence, email is not really a physical place where the action happened. It is the medium used to receive the notice. So 이메일로 is the natural choice.
Compare:
- 회사에서 연락을 받았어요. = I got contacted from the company / at the company, depending on context
- 이메일로 연락을 받았어요. = I got contacted