I've had emails from just about every financial institution you can think of in my "throwaway" email accounts.

And each and every one of them gets deleted immediately along with all the other dross, unopened.

Opening them is also too risky, who knows what's in them, plus it's giving feedback to the spammers that your email address is "alive".

In any event, unless you know the actual sender or are expecting an an email from, say, a business, any others should be treated with the contempt they deserve.....dumped.