How can I find out where the letter was sent from?

Question

Email

Good evening, the essence of the problem:
there are remote divisions that send reports by email. email monthly
How do I know where they send these reports from? From the workplace or from home?

Answer 1

If the mail is corporate and the mail server is located in the company, then you can find out. In other cases, you can't.

Answer 2

You can find out from the "original letter" - see what headers the client sent, usually even his ip is recorded there and another 100500 lines of all sorts of things.
In google - when you view a letter - where to forward - there is an item "Show original".
In other mail clients, you need to look for where it is hidden.