How to always see the sender email address in Mail?

I use Apple Mail under Big Sur.

I cannot find the option to always see the sender email address when reading an e-mail.

Does anybody know how to get it?

P. S. The reason is that recently we had a phishing attack, where everybody gets a very real looking email from our boss, and only by clicking on the sender name and looking at the email address, one can see that it is a fake email.

P. P. S. It is really annoying that Apple does not easily provide such an important security measure as seeing someone's address all the time.