Questions about writing a letter im just curious?

Question

If you write a letter to someone, and let's say you wrote their address correctly, but something was wrong with yours like you made an error, would it still be sent to the person you're writing it to?

Answer 1

I am not sure, but I think that as long as the person you are mailing it to information is right, they will receive it still. It will only come back to you if its a problem with the persons address you sent it too thats when they return it to the sender.